diff options
Diffstat (limited to 'sound/oss')
| -rw-r--r-- | sound/oss/Makefile | 9 | ||||
| -rw-r--r-- | sound/oss/ac97_codec.c | 284 | ||||
| -rw-r--r-- | sound/oss/btaudio.c | 1139 | ||||
| -rw-r--r-- | sound/oss/cs4232.c | 526 | ||||
| -rw-r--r-- | sound/oss/i810_audio.c | 3656 | ||||
| -rw-r--r-- | sound/oss/via82cxxx_audio.c | 3616 |
6 files changed, 0 insertions, 9230 deletions
diff --git a/sound/oss/Makefile b/sound/oss/Makefile index f883c4b676ab..1f86299fae40 100644 --- a/sound/oss/Makefile +++ b/sound/oss/Makefile @@ -6,7 +6,6 @@ # Each configuration option enables a list of files. obj-$(CONFIG_SOUND_OSS) += sound.o -obj-$(CONFIG_SOUND_CS4232) += cs4232.o ad1848.o # Please leave it as is, cause the link order is significant ! @@ -16,7 +15,6 @@ obj-$(CONFIG_SOUND_AEDSP16) += aedsp16.o obj-$(CONFIG_SOUND_PSS) += pss.o ad1848.o mpu401.o obj-$(CONFIG_SOUND_TRIX) += trix.o ad1848.o sb_lib.o uart401.o obj-$(CONFIG_SOUND_SSCAPE) += sscape.o ad1848.o mpu401.o -obj-$(CONFIG_SOUND_CS4232) += cs4232.o uart401.o obj-$(CONFIG_SOUND_MSS) += ad1848.o obj-$(CONFIG_SOUND_PAS) += pas2.o sb.o sb_lib.o uart401.o obj-$(CONFIG_SOUND_SB) += sb.o sb_lib.o uart401.o @@ -27,19 +25,12 @@ obj-$(CONFIG_SOUND_YM3812) += opl3.o obj-$(CONFIG_SOUND_VMIDI) += v_midi.o obj-$(CONFIG_SOUND_VIDC) += vidc_mod.o obj-$(CONFIG_SOUND_WAVEARTIST) += waveartist.o - -obj-$(CONFIG_SOUND_VIA82CXXX) += via82cxxx_audio.o ac97_codec.o -ifeq ($(CONFIG_MIDI_VIA82CXXX),y) - obj-$(CONFIG_SOUND_VIA82CXXX) += sound.o uart401.o -endif obj-$(CONFIG_SOUND_MSNDCLAS) += msnd.o msnd_classic.o obj-$(CONFIG_SOUND_MSNDPIN) += msnd.o msnd_pinnacle.o obj-$(CONFIG_SOUND_VWSND) += vwsnd.o -obj-$(CONFIG_SOUND_ICH) += i810_audio.o ac97_codec.o obj-$(CONFIG_SOUND_AU1550_AC97) += au1550_ac97.o ac97_codec.o obj-$(CONFIG_SOUND_TRIDENT) += trident.o ac97_codec.o obj-$(CONFIG_SOUND_BCM_CS4297A) += swarm_cs4297a.o -obj-$(CONFIG_SOUND_BT878) += btaudio.o obj-$(CONFIG_SOUND_WM97XX) += ac97_plugin_wm97xx.o diff --git a/sound/oss/ac97_codec.c b/sound/oss/ac97_codec.c index fef56cac06c8..87a672680761 100644 --- a/sound/oss/ac97_codec.c +++ b/sound/oss/ac97_codec.c @@ -189,42 +189,6 @@ static const struct { {0x57454301, "Winbond 83971D", &null_ops}, }; -static const char *ac97_stereo_enhancements[] = -{ - /* 0 */ "No 3D Stereo Enhancement", - /* 1 */ "Analog Devices Phat Stereo", - /* 2 */ "Creative Stereo Enhancement", - /* 3 */ "National Semi 3D Stereo Enhancement", - /* 4 */ "YAMAHA Ymersion", - /* 5 */ "BBE 3D Stereo Enhancement", - /* 6 */ "Crystal Semi 3D Stereo Enhancement", - /* 7 */ "Qsound QXpander", - /* 8 */ "Spatializer 3D Stereo Enhancement", - /* 9 */ "SRS 3D Stereo Enhancement", - /* 10 */ "Platform Tech 3D Stereo Enhancement", - /* 11 */ "AKM 3D Audio", - /* 12 */ "Aureal Stereo Enhancement", - /* 13 */ "Aztech 3D Enhancement", - /* 14 */ "Binaura 3D Audio Enhancement", - /* 15 */ "ESS Technology Stereo Enhancement", - /* 16 */ "Harman International VMAx", - /* 17 */ "Nvidea 3D Stereo Enhancement", - /* 18 */ "Philips Incredible Sound", - /* 19 */ "Texas Instruments 3D Stereo Enhancement", - /* 20 */ "VLSI Technology 3D Stereo Enhancement", - /* 21 */ "TriTech 3D Stereo Enhancement", - /* 22 */ "Realtek 3D Stereo Enhancement", - /* 23 */ "Samsung 3D Stereo Enhancement", - /* 24 */ "Wolfson Microelectronics 3D Enhancement", - /* 25 */ "Delta Integration 3D Enhancement", - /* 26 */ "SigmaTel 3D Enhancement", - /* 27 */ "Winbond 3D Stereo Enhancement", - /* 28 */ "Rockwell 3D Stereo Enhancement", - /* 29 */ "Reserved 29", - /* 30 */ "Reserved 30", - /* 31 */ "Reserved 31" -}; - /* this table has default mixer values for all OSS mixers. */ static struct mixer_defaults { int mixer; @@ -614,83 +578,6 @@ static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned return -EINVAL; } -/* entry point for /proc/driver/controller_vendor/ac97/%d */ -int ac97_read_proc (char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - int len = 0, cap, extid, val, id1, id2; - struct ac97_codec *codec; - int is_ac97_20 = 0; - - if ((codec = data) == NULL) - return -ENODEV; - - id1 = codec->codec_read(codec, AC97_VENDOR_ID1); - id2 = codec->codec_read(codec, AC97_VENDOR_ID2); - len += sprintf (page+len, "Vendor name : %s\n", codec->name); - len += sprintf (page+len, "Vendor id : %04X %04X\n", id1, id2); - - extid = codec->codec_read(codec, AC97_EXTENDED_ID); - extid &= ~((1<<2)|(1<<4)|(1<<5)|(1<<10)|(1<<11)|(1<<12)|(1<<13)); - len += sprintf (page+len, "AC97 Version : %s\n", - extid ? "2.0 or later" : "1.0"); - if (extid) is_ac97_20 = 1; - - cap = codec->codec_read(codec, AC97_RESET); - len += sprintf (page+len, "Capabilities :%s%s%s%s%s%s\n", - cap & 0x0001 ? " -dedicated MIC PCM IN channel-" : "", - cap & 0x0002 ? " -reserved1-" : "", - cap & 0x0004 ? " -bass & treble-" : "", - cap & 0x0008 ? " -simulated stereo-" : "", - cap & 0x0010 ? " -headphone out-" : "", - cap & 0x0020 ? " -loudness-" : ""); - val = cap & 0x00c0; - len += sprintf (page+len, "DAC resolutions :%s%s%s\n", - " -16-bit-", - val & 0x0040 ? " -18-bit-" : "", - val & 0x0080 ? " -20-bit-" : ""); - val = cap & 0x0300; - len += sprintf (page+len, "ADC resolutions :%s%s%s\n", - " -16-bit-", - val & 0x0100 ? " -18-bit-" : "", - val & 0x0200 ? " -20-bit-" : ""); - len += sprintf (page+len, "3D enhancement : %s\n", - ac97_stereo_enhancements[(cap >> 10) & 0x1f]); - - val = codec->codec_read(codec, AC97_GENERAL_PURPOSE); - len += sprintf (page+len, "POP path : %s 3D\n" - "Sim. stereo : %s\n" - "3D enhancement : %s\n" - "Loudness : %s\n" - "Mono output : %s\n" - "MIC select : %s\n" - "ADC/DAC loopback : %s\n", - val & 0x8000 ? "post" : "pre", - val & 0x4000 ? "on" : "off", - val & 0x2000 ? "on" : "off", - val & 0x1000 ? "on" : "off", - val & 0x0200 ? "MIC" : "MIX", - val & 0x0100 ? "MIC2" : "MIC1", - val & 0x0080 ? "on" : "off"); - - extid = codec->codec_read(codec, AC97_EXTENDED_ID); - cap = extid; - len += sprintf (page+len, "Ext Capabilities :%s%s%s%s%s%s%s\n", - cap & 0x0001 ? " -var rate PCM audio-" : "", - cap & 0x0002 ? " -2x PCM audio out-" : "", - cap & 0x0008 ? " -var rate MIC in-" : "", - cap & 0x0040 ? " -PCM center DAC-" : "", - cap & 0x0080 ? " -PCM surround DAC-" : "", - cap & 0x0100 ? " -PCM LFE DAC-" : "", - cap & 0x0200 ? " -slot/DAC mappings-" : ""); - if (is_ac97_20) { - len += sprintf (page+len, "Front DAC rate : %d\n", - codec->codec_read(codec, AC97_PCM_FRONT_DAC_RATE)); - } - - return len; -} - /** * codec_id - Turn id1/id2 into a PnP string * @id1: Vendor ID1 @@ -1313,176 +1200,5 @@ static int pt101_init(struct ac97_codec * codec) #endif -EXPORT_SYMBOL(ac97_read_proc); EXPORT_SYMBOL(ac97_probe_codec); -/* - * AC97 library support routines - */ - -/** - * ac97_set_dac_rate - set codec rate adaption - * @codec: ac97 code - * @rate: rate in hertz - * - * Set the DAC rate. Assumes the codec supports VRA. The caller is - * expected to have checked this little detail. - */ - -unsigned int ac97_set_dac_rate(struct ac97_codec *codec, unsigned int rate) -{ - unsigned int new_rate = rate; - u32 dacp; - u32 mast_vol, phone_vol, mono_vol, pcm_vol; - u32 mute_vol = 0x8000; /* The mute volume? */ - - if(rate != codec->codec_read(codec, AC97_PCM_FRONT_DAC_RATE)) - { - /* Mute several registers */ - mast_vol = codec->codec_read(codec, AC97_MASTER_VOL_STEREO); - mono_vol = codec->codec_read(codec, AC97_MASTER_VOL_MONO); - phone_vol = codec->codec_read(codec, AC97_HEADPHONE_VOL); - pcm_vol = codec->codec_read(codec, AC97_PCMOUT_VOL); - codec->codec_write(codec, AC97_MASTER_VOL_STEREO, mute_vol); - codec->codec_write(codec, AC97_MASTER_VOL_MONO, mute_vol); - codec->codec_write(codec, AC97_HEADPHONE_VOL, mute_vol); - codec->codec_write(codec, AC97_PCMOUT_VOL, mute_vol); - - /* Power down the DAC */ - dacp=codec->codec_read(codec, AC97_POWER_CONTROL); - codec->codec_write(codec, AC97_POWER_CONTROL, dacp|0x0200); - /* Load the rate and read the effective rate */ - codec->codec_write(codec, AC97_PCM_FRONT_DAC_RATE, rate); - new_rate=codec->codec_read(codec, AC97_PCM_FRONT_DAC_RATE); - /* Power it back up */ - codec->codec_write(codec, AC97_POWER_CONTROL, dacp); - - /* Restore volumes */ - codec->codec_write(codec, AC97_MASTER_VOL_STEREO, mast_vol); - codec->codec_write(codec, AC97_MASTER_VOL_MONO, mono_vol); - codec->codec_write(codec, AC97_HEADPHONE_VOL, phone_vol); - codec->codec_write(codec, AC97_PCMOUT_VOL, pcm_vol); - } - return new_rate; -} - -EXPORT_SYMBOL(ac97_set_dac_rate); - -/** - * ac97_set_adc_rate - set codec rate adaption - * @codec: ac97 code - * @rate: rate in hertz - * - * Set the ADC rate. Assumes the codec supports VRA. The caller is - * expected to have checked this little detail. - */ - -unsigned int ac97_set_adc_rate(struct ac97_codec *codec, unsigned int rate) -{ - unsigned int new_rate = rate; - u32 dacp; - - if(rate != codec->codec_read(codec, AC97_PCM_LR_ADC_RATE)) - { - /* Power down the ADC */ - dacp=codec->codec_read(codec, AC97_POWER_CONTROL); - codec->codec_write(codec, AC97_POWER_CONTROL, dacp|0x0100); - /* Load the rate and read the effective rate */ - codec->codec_write(codec, AC97_PCM_LR_ADC_RATE, rate); - new_rate=codec->codec_read(codec, AC97_PCM_LR_ADC_RATE); - /* Power it back up */ - codec->codec_write(codec, AC97_POWER_CONTROL, dacp); - } - return new_rate; -} - -EXPORT_SYMBOL(ac97_set_adc_rate); - -static int swap_headphone(int remove_master) -{ - struct list_head *l; - struct ac97_codec *c; - - if (remove_master) { - mutex_lock(&codec_mutex); - list_for_each(l, &codecs) - { - c = list_entry(l, struct ac97_codec, list); - if (supported_mixer(c, SOUND_MIXER_PHONEOUT)) - c->supported_mixers &= ~SOUND_MASK_PHONEOUT; - } - mutex_unlock(&codec_mutex); - } else - ac97_hw[SOUND_MIXER_PHONEOUT].offset = AC97_MASTER_VOL_STEREO; - - /* Scale values already match */ - ac97_hw[SOUND_MIXER_VOLUME].offset = AC97_MASTER_VOL_MONO; - return 0; -} - -static int apply_quirk(int quirk) -{ - switch (quirk) { - case AC97_TUNE_NONE: - return 0; - case AC97_TUNE_HP_ONLY: - return swap_headphone(1); - case AC97_TUNE_SWAP_HP: - return swap_headphone(0); - case AC97_TUNE_SWAP_SURROUND: - return -ENOSYS; /* not yet implemented */ - case AC97_TUNE_AD_SHARING: - return -ENOSYS; /* not yet implemented */ - case AC97_TUNE_ALC_JACK: - return -ENOSYS; /* not yet implemented */ - } - return -EINVAL; -} - -/** - * ac97_tune_hardware - tune up the hardware - * @pdev: pci_dev pointer - * @quirk: quirk list - * @override: explicit quirk value (overrides if not AC97_TUNE_DEFAULT) - * - * Do some workaround for each pci device, such as renaming of the - * headphone (true line-out) control as "Master". - * The quirk-list must be terminated with a zero-filled entry. - * - * Returns zero if successful, or a negative error code on failure. - */ - -int ac97_tune_hardware(struct pci_dev *pdev, struct ac97_quirk *quirk, int override) -{ - int result; - - if (!quirk) - return -EINVAL; - - if (override != AC97_TUNE_DEFAULT) { - result = apply_quirk(override); - if (result < 0) - printk(KERN_ERR "applying quirk type %d failed (%d)\n", override, result); - return result; - } - - for (; quirk->vendor; quirk++) { - if (quirk->vendor != pdev->subsystem_vendor) - continue; - if ((! quirk->mask && quirk->device == pdev->subsystem_device) || - quirk->device == (quirk->mask & pdev->subsystem_device)) { -#ifdef DEBUG - printk("ac97 quirk for %s (%04x:%04x)\n", quirk->name, ac97->subsystem_vendor, pdev->subsystem_device); -#endif - result = apply_quirk(quirk->type); - if (result < 0) - printk(KERN_ERR "applying quirk type %d for %s failed (%d)\n", quirk->type, quirk->name, result); - return result; - } - } - return 0; -} - -EXPORT_SYMBOL_GPL(ac97_tune_hardware); - -MODULE_LICENSE("GPL"); diff --git a/sound/oss/btaudio.c b/sound/oss/btaudio.c deleted file mode 100644 index 4d5cf05b8922..000000000000 --- a/sound/oss/btaudio.c +++ /dev/null @@ -1,1139 +0,0 @@ -/* - btaudio - bt878 audio dma driver for linux 2.4.x - - (c) 2000-2002 Gerd Knorr <kraxel@bytesex.org> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -*/ - -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/pci.h> -#include <linux/sched.h> -#include <linux/signal.h> -#include <linux/types.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/poll.h> -#include <linux/sound.h> -#include <linux/soundcard.h> -#include <linux/slab.h> -#include <linux/kdev_t.h> -#include <linux/mutex.h> - -#include <asm/uaccess.h> -#include <asm/io.h> - - -/* mmio access */ -#define btwrite(dat,adr) writel((dat), (bta->mmio+(adr))) -#define btread(adr) readl(bta->mmio+(adr)) - -#define btand(dat,adr) btwrite((dat) & btread(adr), adr) -#define btor(dat,adr) btwrite((dat) | btread(adr), adr) -#define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr) - -/* registers (shifted because bta->mmio is long) */ -#define REG_INT_STAT (0x100 >> 2) -#define REG_INT_MASK (0x104 >> 2) -#define REG_GPIO_DMA_CTL (0x10c >> 2) -#define REG_PACKET_LEN (0x110 >> 2) -#define REG_RISC_STRT_ADD (0x114 >> 2) -#define REG_RISC_COUNT (0x120 >> 2) - -/* IRQ bits - REG_INT_(STAT|MASK) */ -#define IRQ_SCERR (1 << 19) -#define IRQ_OCERR (1 << 18) -#define IRQ_PABORT (1 << 17) -#define IRQ_RIPERR (1 << 16) -#define IRQ_PPERR (1 << 15) -#define IRQ_FDSR (1 << 14) -#define IRQ_FTRGT (1 << 13) -#define IRQ_FBUS (1 << 12) -#define IRQ_RISCI (1 << 11) -#define IRQ_OFLOW (1 << 3) - -#define IRQ_BTAUDIO (IRQ_SCERR | IRQ_OCERR | IRQ_PABORT | IRQ_RIPERR |\ - IRQ_PPERR | IRQ_FDSR | IRQ_FTRGT | IRQ_FBUS |\ - IRQ_RISCI) - -/* REG_GPIO_DMA_CTL bits */ -#define DMA_CTL_A_PWRDN (1 << 26) -#define DMA_CTL_DA_SBR (1 << 14) -#define DMA_CTL_DA_ES2 (1 << 13) -#define DMA_CTL_ACAP_EN (1 << 4) -#define DMA_CTL_RISC_EN (1 << 1) -#define DMA_CTL_FIFO_EN (1 << 0) - -/* RISC instructions */ -#define RISC_WRITE (0x01 << 28) -#define RISC_JUMP (0x07 << 28) -#define RISC_SYNC (0x08 << 28) - -/* RISC bits */ -#define RISC_WR_SOL (1 << 27) -#define RISC_WR_EOL (1 << 26) -#define RISC_IRQ (1 << 24) -#define RISC_SYNC_RESYNC (1 << 15) -#define RISC_SYNC_FM1 0x06 -#define RISC_SYNC_VRO 0x0c - -#define HWBASE_AD (448000) - -/* -------------------------------------------------------------- */ - -struct btaudio { - /* linked list */ - struct btaudio *next; - - /* device info */ - int dsp_digital; - int dsp_analog; - int mixer_dev; - struct pci_dev *pci; - unsigned int irq; - unsigned long mem; - unsigned long __iomem *mmio; - - /* locking */ - int users; - struct mutex lock; - - /* risc instructions */ - unsigned int risc_size; - unsigned long *risc_cpu; - dma_addr_t risc_dma; - - /* audio data */ - unsigned int buf_size; - unsigned char *buf_cpu; - dma_addr_t buf_dma; - - /* buffer setup */ - int line_bytes; - int line_count; - int block_bytes; - int block_count; - - /* read fifo management */ - int recording; - int dma_block; - int read_offset; - int read_count; - wait_queue_head_t readq; - - /* settings */ - int gain[3]; - int source; - int bits; - int decimation; - int mixcount; - int sampleshift; - int channels; - int analog; - int rate; -}; - -struct cardinfo { - char *name; - int rate; -}; - -static struct btaudio *btaudios; -static unsigned int debug; -static unsigned int irq_debug; - -/* -------------------------------------------------------------- */ - -#define BUF_DEFAULT 128*1024 -#define BUF_MIN 8192 - -static int alloc_buffer(struct btaudio *bta) -{ - if (NULL == bta->buf_cpu) { - for (bta->buf_size = BUF_DEFAULT; bta->buf_size >= BUF_MIN; - bta->buf_size = bta->buf_size >> 1) { - bta->buf_cpu = pci_alloc_consistent - (bta->pci, bta->buf_size, &bta->buf_dma); - if (NULL != bta->buf_cpu) - break; - } - if (NULL == bta->buf_cpu) - return -ENOMEM; - memset(bta->buf_cpu,0,bta->buf_size); - } - if (NULL == bta->risc_cpu) { - bta->risc_size = PAGE_SIZE; - bta->risc_cpu = pci_alloc_consistent - (bta->pci, bta->risc_size, &bta->risc_dma); - if (NULL == bta->risc_cpu) { - pci_free_consistent(bta->pci, bta->buf_size, bta->buf_cpu, bta->buf_dma); - bta->buf_cpu = NULL; - return -ENOMEM; - } - } - return 0; -} - -static void free_buffer(struct btaudio *bta) -{ - if (NULL != bta->buf_cpu) { - pci_free_consistent(bta->pci, bta->buf_size, - bta->buf_cpu, bta->buf_dma); - bta->buf_cpu = NULL; - } - if (NULL != bta->risc_cpu) { - pci_free_consistent(bta->pci, bta->risc_size, - bta->risc_cpu, bta->risc_dma); - bta->risc_cpu = NULL; - } -} - -static int make_risc(struct btaudio *bta) -{ - int rp, bp, line, block; - unsigned long risc; - - bta->block_bytes = bta->buf_size >> 4; - bta->block_count = 1 << 4; - bta->line_bytes = bta->block_bytes; - bta->line_count = bta->block_count; - while (bta->line_bytes > 4095) { - bta->line_bytes >>= 1; - bta->line_count <<= 1; - } - if (bta->line_count > 255) - return -EINVAL; - if (debug) - printk(KERN_DEBUG - "btaudio: bufsize=%d - bs=%d bc=%d - ls=%d, lc=%d\n", - bta->buf_size,bta->block_bytes,bta->block_count, - bta->line_bytes,bta->line_count); - rp = 0; bp = 0; - block = 0; - bta->risc_cpu[rp++] = cpu_to_le32(RISC_SYNC|RISC_SYNC_FM1); - bta->risc_cpu[rp++] = cpu_to_le32(0); - for (line = 0; line < bta->line_count; line++) { - risc = RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL; - risc |= bta->line_bytes; - if (0 == (bp & (bta->block_bytes-1))) { - risc |= RISC_IRQ; - risc |= (block & 0x0f) << 16; - risc |= (~block & 0x0f) << 20; - block++; - } - bta->risc_cpu[rp++] = cpu_to_le32(risc); - bta->risc_cpu[rp++] = cpu_to_le32(bta->buf_dma + bp); - bp += bta->line_bytes; - } - bta->risc_cpu[rp++] = cpu_to_le32(RISC_SYNC|RISC_SYNC_VRO); - bta->risc_cpu[rp++] = cpu_to_le32(0); - bta->risc_cpu[rp++] = cpu_to_le32(RISC_JUMP); - bta->risc_cpu[rp++] = cpu_to_le32(bta->risc_dma); - return 0; -} - -static int start_recording(struct btaudio *bta) -{ - int ret; - - if (0 != (ret = alloc_buffer(bta))) - return ret; - if (0 != (ret = make_risc(bta))) - return ret; - - btwrite(bta->risc_dma, REG_RISC_STRT_ADD); - btwrite((bta->line_count << 16) | bta->line_bytes, - REG_PACKET_LEN); - btwrite(IRQ_BTAUDIO, REG_INT_MASK); - if (bta->analog) { - btwrite(DMA_CTL_ACAP_EN | - DMA_CTL_RISC_EN | - DMA_CTL_FIFO_EN | - DMA_CTL_DA_ES2 | - ((bta->bits == 8) ? DMA_CTL_DA_SBR : 0) | - (bta->gain[bta->source] << 28) | - (bta->source << 24) | - (bta->decimation << 8), - REG_GPIO_DMA_CTL); - } else { - btwrite(DMA_CTL_ACAP_EN | - DMA_CTL_RISC_EN | - DMA_CTL_FIFO_EN | - DMA_CTL_DA_ES2 | - DMA_CTL_A_PWRDN | - (1 << 6) | - ((bta->bits == 8) ? DMA_CTL_DA_SBR : 0) | - (bta->gain[bta->source] << 28) | - (bta->source << 24) | - (bta->decimation << 8), - REG_GPIO_DMA_CTL); - } - bta->dma_block = 0; - bta->read_offset = 0; - bta->read_count = 0; - bta->recording = 1; - if (debug) - printk(KERN_DEBUG "btaudio: recording started\n"); - return 0; -} - -static void stop_recording(struct btaudio *bta) -{ - btand(~15, REG_GPIO_DMA_CTL); - bta->recording = 0; - if (debug) - printk(KERN_DEBUG "btaudio: recording stopped\n"); -} - - -/* -------------------------------------------------------------- */ - -static int btaudio_mixer_open(struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - struct btaudio *bta; - - for (bta = btaudios; bta != NULL; bta = bta->next) - if (bta->mixer_dev == minor) - break; - if (NULL == bta) - return -ENODEV; - - if (debug) - printk("btaudio: open mixer [%d]\n",minor); - file->private_data = bta; - return 0; -} - -static int btaudio_mixer_release(struct inode *inode, struct file *file) -{ - return 0; -} - -static int btaudio_mixer_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - struct btaudio *bta = file->private_data; - int ret,val=0,i=0; - void __user *argp = (void __user *)arg; - - if (cmd == SOUND_MIXER_INFO) { - mixer_info info; - memset(&info,0,sizeof(info)); - strlcpy(info.id,"bt878",sizeof(info.id)); - strlcpy(info.name,"Brooktree Bt878 audio",sizeof(info.name)); - info.modify_counter = bta->mixcount; - if (copy_to_user(argp, &info, sizeof(info))) - return -EFAULT; - return 0; - } - if (cmd == SOUND_OLD_MIXER_INFO) { - _old_mixer_info info; - memset(&info,0,sizeof(info)); - strlcpy(info.id, "bt878", sizeof(info.id)); - strlcpy(info.name,"Brooktree Bt878 audio",sizeof(info.name)); - if (copy_to_user(argp, &info, sizeof(info))) - return -EFAULT; - return 0; - } - if (cmd == OSS_GETVERSION) - return put_user(SOUND_VERSION, (int __user *)argp); - - /* read */ - if (_SIOC_DIR(cmd) & _SIOC_WRITE) - if (get_user(val, (int __user *)argp)) - return -EFAULT; - - switch (cmd) { - case MIXER_READ(SOUND_MIXER_CAPS): - ret = SOUND_CAP_EXCL_INPUT; - break; - case MIXER_READ(SOUND_MIXER_STEREODEVS): - ret = 0; - break; - case MIXER_READ(SOUND_MIXER_RECMASK): - case MIXER_READ(SOUND_MIXER_DEVMASK): - ret = SOUND_MASK_LINE1|SOUND_MASK_LINE2|SOUND_MASK_LINE3; - break; - - case MIXER_WRITE(SOUND_MIXER_RECSRC): - if (val & SOUND_MASK_LINE1 && bta->source != 0) - bta->source = 0; - else if (val & SOUND_MASK_LINE2 && bta->source != 1) - bta->source = 1; - else if (val & SOUND_MASK_LINE3 && bta->source != 2) - bta->source = 2; - btaor((bta->gain[bta->source] << 28) | - (bta->source << 24), - 0x0cffffff, REG_GPIO_DMA_CTL); - case MIXER_READ(SOUND_MIXER_RECSRC): - switch (bta->source) { - case 0: ret = SOUND_MASK_LINE1; break; - case 1: ret = SOUND_MASK_LINE2; break; - case 2: ret = SOUND_MASK_LINE3; break; - default: ret = 0; - } - break; - - case MIXER_WRITE(SOUND_MIXER_LINE1): - case MIXER_WRITE(SOUND_MIXER_LINE2): - case MIXER_WRITE(SOUND_MIXER_LINE3): - if (MIXER_WRITE(SOUND_MIXER_LINE1) == cmd) - i = 0; - if (MIXER_WRITE(SOUND_MIXER_LINE2) == cmd) - i = 1; - if (MIXER_WRITE(SOUND_MIXER_LINE3) == cmd) - i = 2; - bta->gain[i] = (val & 0xff) * 15 / 100; - if (bta->gain[i] > 15) bta->gain[i] = 15; - if (bta->gain[i] < 0) bta->gain[i] = 0; - if (i == bta->source) - btaor((bta->gain[bta->source]<<28), - 0x0fffffff, REG_GPIO_DMA_CTL); - ret = bta->gain[i] * 100 / 15; - ret |= ret << 8; - break; - - case MIXER_READ(SOUND_MIXER_LINE1): - case MIXER_READ(SOUND_MIXER_LINE2): - case MIXER_READ(SOUND_MIXER_LINE3): - if (MIXER_READ(SOUND_MIXER_LINE1) == cmd) - i = 0; - if (MIXER_READ(SOUND_MIXER_LINE2) == cmd) - i = 1; - if (MIXER_READ(SOUND_MIXER_LINE3) == cmd) - i = 2; - ret = bta->gain[i] * 100 / 15; - ret |= ret << 8; - break; - - default: - return -EINVAL; - } - if (put_user(ret, (int __user *)argp)) - return -EFAULT; - return 0; -} - -static const struct file_operations btaudio_mixer_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .open = btaudio_mixer_open, - .release = btaudio_mixer_release, - .ioctl = btaudio_mixer_ioctl, -}; - -/* -------------------------------------------------------------- */ - -static int btaudio_dsp_open(struct inode *inode, struct file *file, - struct btaudio *bta, int analog) -{ - mutex_lock(&bta->lock); - if (bta->users) - goto busy; - bta->users++; - file->private_data = bta; - - bta->analog = analog; - bta->dma_block = 0; - bta->read_offset = 0; - bta->read_count = 0; - bta->sampleshift = 0; - - mutex_unlock(&bta->lock); - return 0; - - busy: - mutex_unlock(&bta->lock); - return -EBUSY; -} - -static int btaudio_dsp_open_digital(struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - struct btaudio *bta; - - for (bta = btaudios; bta != NULL; bta = bta->next) - if (bta->dsp_digital == minor) - break; - if (NULL == bta) - return -ENODEV; - - if (debug) - printk("btaudio: open digital dsp [%d]\n",minor); - return btaudio_dsp_open(inode,file,bta,0); -} - -static int btaudio_dsp_open_analog(struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - struct btaudio *bta; - - for (bta = btaudios; bta != NULL; bta = bta->next) - if (bta->dsp_analog == minor) - break; - if (NULL == bta) - return -ENODEV; - - if (debug) - printk("btaudio: open analog dsp [%d]\n",minor); - return btaudio_dsp_open(inode,file,bta,1); -} - -static int btaudio_dsp_release(struct inode *inode, struct file *file) -{ - struct btaudio *bta = file->private_data; - - mutex_lock(&bta->lock); - if (bta->recording) - stop_recording(bta); - bta->users--; - mutex_unlock(&bta->lock); - return 0; -} - -static ssize_t btaudio_dsp_read(struct file *file, char __user *buffer, - size_t swcount, loff_t *ppos) -{ - struct btaudio *bta = file->private_data; - int hwcount = swcount << bta->sampleshift; - int nsrc, ndst, err, ret = 0; - DECLARE_WAITQUEUE(wait, current); - - add_wait_queue(&bta->readq, &wait); - mutex_lock(&bta->lock); - while (swcount > 0) { - if (0 == bta->read_count) { - if (!bta->recording) { - if (0 != (err = start_recording(bta))) { - if (0 == ret) - ret = err; - break; - } - } - if (file->f_flags & O_NONBLOCK) { - if (0 == ret) - ret = -EAGAIN; - break; - } - mutex_unlock(&bta->lock); - current->state = TASK_INTERRUPTIBLE; - schedule(); - mutex_lock(&bta->lock); - if(signal_pending(current)) { - if (0 == ret) - ret = -EINTR; - break; - } - } - nsrc = (bta->read_count < hwcount) ? bta->read_count : hwcount; - if (nsrc > bta->buf_size - bta->read_offset) - nsrc = bta->buf_size - bta->read_offset; - ndst = nsrc >> bta->sampleshift; - - if ((bta->analog && 0 == bta->sampleshift) || - (!bta->analog && 2 == bta->channels)) { - /* just copy */ - if (copy_to_user(buffer + ret, bta->buf_cpu + bta->read_offset, nsrc)) { - if (0 == ret) - ret = -EFAULT; - break; - } - - } else if (!bta->analog) { - /* stereo => mono (digital audio) */ - __s16 *src = (__s16*)(bta->buf_cpu + bta->read_offset); - __s16 __user *dst = (__s16 __user *)(buffer + ret); - __s16 avg; - int n = ndst>>1; - if (!access_ok(VERIFY_WRITE, dst, ndst)) { - if (0 == ret) - ret = -EFAULT; - break; - } - for (; n; n--, dst++) { - avg = (__s16)le16_to_cpu(*src) / 2; src++; - avg += (__s16)le16_to_cpu(*src) / 2; src++; - __put_user(cpu_to_le16(avg),dst); - } - - } else if (8 == bta->bits) { - /* copy + byte downsampling (audio A/D) */ - __u8 *src = bta->buf_cpu + bta->read_offset; - __u8 __user *dst = buffer + ret; - int n = ndst; - if (!access_ok(VERIFY_WRITE, dst, ndst)) { - if (0 == ret) - ret = -EFAULT; - break; - } - for (; n; n--, src += (1 << bta->sampleshift), dst++) - __put_user(*src, dst); - - } else { - /* copy + word downsampling (audio A/D) */ - __u16 *src = (__u16*)(bta->buf_cpu + bta->read_offset); - __u16 __user *dst = (__u16 __user *)(buffer + ret); - int n = ndst>>1; - if (!access_ok(VERIFY_WRITE,dst,ndst)) { - if (0 == ret) - ret = -EFAULT; - break; - } - for (; n; n--, src += (1 << bta->sampleshift), dst++) - __put_user(*src, dst); - } - - ret += ndst; - swcount -= ndst; - hwcount -= nsrc; - bta->read_count -= nsrc; - bta->read_offset += nsrc; - if (bta->read_offset == bta->buf_size) - bta->read_offset = 0; - } - mutex_unlock(&bta->lock); - remove_wait_queue(&bta->readq, &wait); - current->state = TASK_RUNNING; - return ret; -} - -static ssize_t btaudio_dsp_write(struct file *file, const char __user *buffer, - size_t count, loff_t *ppos) -{ - return -EINVAL; -} - -static int btaudio_dsp_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - struct btaudio *bta = file->private_data; - int s, i, ret, val = 0; - void __user *argp = (void __user *)arg; - int __user *p = argp; - - switch (cmd) { - case OSS_GETVERSION: - return put_user(SOUND_VERSION, p); - case SNDCTL_DSP_GETCAPS: - return 0; - - case SNDCTL_DSP_SPEED: - if (get_user(val, p)) - return -EFAULT; - if (bta->analog) { - for (s = 0; s < 16; s++) - if (val << s >= HWBASE_AD*4/15) - break; - for (i = 15; i >= 5; i--) - if (val << s <= HWBASE_AD*4/i) - break; - bta->sampleshift = s; - bta->decimation = i; - if (debug) - printk(KERN_DEBUG "btaudio: rate: req=%d " - "dec=%d shift=%d hwrate=%d swrate=%d\n", - val,i,s,(HWBASE_AD*4/i),(HWBASE_AD*4/i)>>s); - } else { - bta->sampleshift = (bta->channels == 2) ? 0 : 1; - bta->decimation = 0; - } - if (bta->recording) { - mutex_lock(&bta->lock); - stop_recording(bta); - start_recording(bta); - mutex_unlock(&bta->lock); - } - /* fall through */ - case SOUND_PCM_READ_RATE: - if (bta->analog) { - return put_user(HWBASE_AD*4/bta->decimation>>bta->sampleshift, p); - } else { - return put_user(bta->rate, p); - } - - case SNDCTL_DSP_STEREO: - if (!bta->analog) { - if (get_user(val, p)) - return -EFAULT; - bta->channels = (val > 0) ? 2 : 1; - bta->sampleshift = (bta->channels == 2) ? 0 : 1; - if (debug) - printk(KERN_INFO - "btaudio: stereo=%d channels=%d\n", - val,bta->channels); - } else { - if (val == 1) - return -EFAULT; - else { - bta->channels = 1; - if (debug) - printk(KERN_INFO - "btaudio: stereo=0 channels=1\n"); - } - } - return put_user((bta->channels)-1, p); - - case SNDCTL_DSP_CHANNELS: - if (!bta->analog) { - if (get_user(val, p)) - return -EFAULT; - bta->channels = (val > 1) ? 2 : 1; - bta->sampleshift = (bta->channels == 2) ? 0 : 1; - if (debug) - printk(KERN_DEBUG - "btaudio: val=%d channels=%d\n", - val,bta->channels); - } - /* fall through */ - case SOUND_PCM_READ_CHANNELS: - return put_user(bta->channels, p); - - case SNDCTL_DSP_GETFMTS: /* Returns a mask */ - if (bta->analog) - return put_user(AFMT_S16_LE|AFMT_S8, p); - else - return put_user(AFMT_S16_LE, p); - - case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/ - if (get_user(val, p)) - return -EFAULT; - if (val != AFMT_QUERY) { - if (bta->analog) - bta->bits = (val == AFMT_S8) ? 8 : 16; - else - bta->bits = 16; - if (bta->recording) { - mutex_lock(&bta->lock); - stop_recording(bta); - start_recording(bta); - mutex_unlock(&bta->lock); - } - } - if (debug) - printk(KERN_DEBUG "btaudio: fmt: bits=%d\n",bta->bits); - return put_user((bta->bits==16) ? AFMT_S16_LE : AFMT_S8, - p); - break; - case SOUND_PCM_READ_BITS: - return put_user(bta->bits, p); - - case SNDCTL_DSP_NONBLOCK: - file->f_flags |= O_NONBLOCK; - return 0; - - case SNDCTL_DSP_RESET: - if (bta->recording) { - mutex_lock(&bta->lock); - stop_recording(bta); - mutex_unlock(&bta->lock); - } - return 0; - case SNDCTL_DSP_GETBLKSIZE: - if (!bta->recording) { - if (0 != (ret = alloc_buffer(bta))) - return ret; - if (0 != (ret = make_risc(bta))) - return ret; - } - return put_user(bta->block_bytes>>bta->sampleshift,p); - - case SNDCTL_DSP_SYNC: - /* NOP */ - return 0; - case SNDCTL_DSP_GETISPACE: - { - audio_buf_info info; - if (!bta->recording) - return -EINVAL; - info.fragsize = bta->block_bytes>>bta->sampleshift; - info.fragstotal = bta->block_count; - info.bytes = bta->read_count; - info.fragments = info.bytes / info.fragsize; - if (debug) - printk(KERN_DEBUG "btaudio: SNDCTL_DSP_GETISPACE " - "returns %d/%d/%d/%d\n", - info.fragsize, info.fragstotal, - info.bytes, info.fragments); - if (copy_to_user(argp, &info, sizeof(info))) - return -EFAULT; - return 0; - } -#if 0 /* TODO */ - case SNDCTL_DSP_GETTRIGGER: - case SNDCTL_DSP_SETTRIGGER: - case SNDCTL_DSP_SETFRAGMENT: -#endif - default: - return -EINVAL; - } -} - -static unsigned int btaudio_dsp_poll(struct file *file, struct poll_table_struct *wait) -{ - struct btaudio *bta = file->private_data; - unsigned int mask = 0; - - poll_wait(file, &bta->readq, wait); - - if (0 != bta->read_count) - mask |= (POLLIN | POLLRDNORM); - - return mask; -} - -static const struct file_operations btaudio_digital_dsp_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .open = btaudio_dsp_open_digital, - .release = btaudio_dsp_release, - .read = btaudio_dsp_read, - .write = btaudio_dsp_write, - .ioctl = btaudio_dsp_ioctl, - .poll = btaudio_dsp_poll, -}; - -static const struct file_operations btaudio_analog_dsp_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .open = btaudio_dsp_open_analog, - .release = btaudio_dsp_release, - .read = btaudio_dsp_read, - .write = btaudio_dsp_write, - .ioctl = btaudio_dsp_ioctl, - .poll = btaudio_dsp_poll, -}; - -/* -------------------------------------------------------------- */ - -static char *irq_name[] = { "", "", "", "OFLOW", "", "", "", "", "", "", "", - "RISCI", "FBUS", "FTRGT", "FDSR", "PPERR", - "RIPERR", "PABORT", "OCERR", "SCERR" }; - -static irqreturn_t btaudio_irq(int irq, void *dev_id) -{ - int count = 0; - u32 stat,astat; - struct btaudio *bta = dev_id; - int handled = 0; - - for (;;) { - count++; - stat = btread(REG_INT_STAT); - astat = stat & btread(REG_INT_MASK); - if (!astat) - return IRQ_RETVAL(handled); - handled = 1; - btwrite(astat,REG_INT_STAT); - - if (irq_debug) { - int i; - printk(KERN_DEBUG "btaudio: irq loop=%d risc=%x, bits:", - count, stat>>28); - for (i = 0; i < (sizeof(irq_name)/sizeof(char*)); i++) { - if (stat & (1 << i)) - printk(" %s",irq_name[i]); - if (astat & (1 << i)) - printk("*"); - } - printk("\n"); - } - if (stat & IRQ_RISCI) { - int blocks; - blocks = (stat >> 28) - bta->dma_block; - if (blocks < 0) - blocks += bta->block_count; - bta->dma_block = stat >> 28; - if (bta->read_count + 2*bta->block_bytes > bta->buf_size) { - stop_recording(bta); - printk(KERN_INFO "btaudio: buffer overrun\n"); - } - if (blocks > 0) { - bta->read_count += blocks * bta->block_bytes; - wake_up_interruptible(&bta->readq); - } - } - if (count > 10) { - printk(KERN_WARNING - "btaudio: Oops - irq mask cleared\n"); - btwrite(0, REG_INT_MASK); - } - } - return IRQ_NONE; -} - -/* -------------------------------------------------------------- */ - -static unsigned int dsp1 = -1; -static unsigned int dsp2 = -1; -static unsigned int mixer = -1; -static int latency = -1; -static int digital = 1; -static int analog = 1; -static int rate; - -#define BTA_OSPREY200 1 - -static struct cardinfo cards[] = { - [0] = { - .name = "default", - .rate = 32000, - }, - [BTA_OSPREY200] = { - .name = "Osprey 200", - .rate = 44100, - }, -}; - -static int __devinit btaudio_probe(struct pci_dev *pci_dev, - const struct pci_device_id *pci_id) -{ - struct btaudio *bta; - struct cardinfo *card = &cards[pci_id->driver_data]; - unsigned char revision,lat; - int rc = -EBUSY; - - if (pci_enable_device(pci_dev)) - return -EIO; - if (!request_mem_region(pci_resource_start(pci_dev,0), - pci_resource_len(pci_dev,0), - "btaudio")) { - return -EBUSY; - } - - bta = kzalloc(sizeof(*bta),GFP_ATOMIC); - if (!bta) { - rc = -ENOMEM; - goto fail0; - } - - bta->pci = pci_dev; - bta->irq = pci_dev->irq; - bta->mem = pci_resource_start(pci_dev,0); - bta->mmio = ioremap(pci_resource_start(pci_dev,0), - pci_resource_len(pci_dev,0)); - - bta->source = 1; - bta->bits = 8; - bta->channels = 1; - if (bta->analog) { - bta->decimation = 15; - } else { - bta->decimation = 0; - bta->sampleshift = 1; - } - - /* sample rate */ - bta->rate = card->rate; - if (rate) - bta->rate = rate; - - mutex_init(&bta->lock); - init_waitqueue_head(&bta->readq); - - if (-1 != latency) { - printk(KERN_INFO "btaudio: setting pci latency timer to %d\n", - latency); - pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency); - } - pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &revision); - pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &lat); - printk(KERN_INFO "btaudio: Bt%x (rev %d) at %02x:%02x.%x, ", - pci_dev->device,revision,pci_dev->bus->number, - PCI_SLOT(pci_dev->devfn),PCI_FUNC(pci_dev->devfn)); - printk("irq: %d, latency: %d, mmio: 0x%lx\n", - bta->irq, lat, bta->mem); - printk("btaudio: using card config \"%s\"\n", card->name); - - /* init hw */ - btwrite(0, REG_GPIO_DMA_CTL); - btwrite(0, REG_INT_MASK); - btwrite(~0U, REG_INT_STAT); - pci_set_master(pci_dev); - - if ((rc = request_irq(bta->irq, btaudio_irq, IRQF_SHARED|IRQF_DISABLED, - "btaudio",(void *)bta)) < 0) { - printk(KERN_WARNING - "btaudio: can't request irq (rc=%d)\n",rc); - goto fail1; - } - - /* register devices */ - if (digital) { - rc = bta->dsp_digital = - register_sound_dsp(&btaudio_digital_dsp_fops,dsp1); - if (rc < 0) { - printk(KERN_WARNING - "btaudio: can't register digital dsp (rc=%d)\n",rc); - goto fail2; - } - printk(KERN_INFO "btaudio: registered device dsp%d [digital]\n", - bta->dsp_digital >> 4); - } - if (analog) { - rc = bta->dsp_analog = - register_sound_dsp(&btaudio_analog_dsp_fops,dsp2); - if (rc < 0) { - printk(KERN_WARNING - "btaudio: can't register analog dsp (rc=%d)\n",rc); - goto fail3; - } - printk(KERN_INFO "btaudio: registered device dsp%d [analog]\n", - bta->dsp_analog >> 4); - rc = bta->mixer_dev = register_sound_mixer(&btaudio_mixer_fops,mixer); - if (rc < 0) { - printk(KERN_WARNING - "btaudio: can't register mixer (rc=%d)\n",rc); - goto fail4; - } - printk(KERN_INFO "btaudio: registered device mixer%d\n", - bta->mixer_dev >> 4); - } - - /* hook into linked list */ - bta->next = btaudios; - btaudios = bta; - - pci_set_drvdata(pci_dev,bta); - return 0; - - fail4: - unregister_sound_dsp(bta->dsp_analog); - fail3: - if (digital) - unregister_sound_dsp(bta->dsp_digital); - fail2: - free_irq(bta->irq,bta); - fail1: - iounmap(bta->mmio); - kfree(bta); - fail0: - release_mem_region(pci_resource_start(pci_dev,0), - pci_resource_len(pci_dev,0)); - return rc; -} - -static void __devexit btaudio_remove(struct pci_dev *pci_dev) -{ - struct btaudio *bta = pci_get_drvdata(pci_dev); - struct btaudio *walk; - - /* turn off all DMA / IRQs */ - btand(~15, REG_GPIO_DMA_CTL); - btwrite(0, REG_INT_MASK); - btwrite(~0U, REG_INT_STAT); - - /* unregister devices */ - if (digital) { - unregister_sound_dsp(bta->dsp_digital); - } - if (analog) { - unregister_sound_dsp(bta->dsp_analog); - unregister_sound_mixer(bta->mixer_dev); - } - - /* free resources */ - free_buffer(bta); - free_irq(bta->irq,bta); - release_mem_region(pci_resource_start(pci_dev,0), - pci_resource_len(pci_dev,0)); - iounmap(bta->mmio); - - /* remove from linked list */ - if (bta == btaudios) { - btaudios = NULL; - } else { - for (walk = btaudios; walk->next != bta; walk = walk->next) - ; /* if (NULL == walk->next) BUG(); */ - walk->next = bta->next; - } - - pci_set_drvdata(pci_dev, NULL); - kfree(bta); - return; -} - -/* -------------------------------------------------------------- */ - -static struct pci_device_id btaudio_pci_tbl[] = { - { - .vendor = PCI_VENDOR_ID_BROOKTREE, - .device = 0x0878, - .subvendor = 0x0070, - .subdevice = 0xff01, - .driver_data = BTA_OSPREY200, - },{ - .vendor = PCI_VENDOR_ID_BROOKTREE, - .device = 0x0878, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - },{ - .vendor = PCI_VENDOR_ID_BROOKTREE, - .device = 0x0878, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - },{ - /* --- end of list --- */ - } -}; - -static struct pci_driver btaudio_pci_driver = { - .name = "btaudio", - .id_table = btaudio_pci_tbl, - .probe = btaudio_probe, - .remove = __devexit_p(btaudio_remove), -}; - -static int btaudio_init_module(void) -{ - printk(KERN_INFO "btaudio: driver version 0.7 loaded [%s%s%s]\n", - digital ? "digital" : "", - analog && digital ? "+" : "", - analog ? "analog" : ""); - return pci_register_driver(&btaudio_pci_driver); -} - -static void btaudio_cleanup_module(void) -{ - pci_unregister_driver(&btaudio_pci_driver); - return; -} - -module_init(btaudio_init_module); -module_exit(btaudio_cleanup_module); - -module_param(dsp1, int, S_IRUGO); -module_param(dsp2, int, S_IRUGO); -module_param(mixer, int, S_IRUGO); -module_param(debug, int, S_IRUGO | S_IWUSR); -module_param(irq_debug, int, S_IRUGO | S_IWUSR); -module_param(digital, int, S_IRUGO); -module_param(analog, int, S_IRUGO); -module_param(rate, int, S_IRUGO); -module_param(latency, int, S_IRUGO); -MODULE_PARM_DESC(latency,"pci latency timer"); - -MODULE_DEVICE_TABLE(pci, btaudio_pci_tbl); -MODULE_DESCRIPTION("bt878 audio dma driver"); -MODULE_AUTHOR("Gerd Knorr"); -MODULE_LICENSE("GPL"); - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ diff --git a/sound/oss/cs4232.c b/sound/oss/cs4232.c deleted file mode 100644 index de40e21bf279..000000000000 --- a/sound/oss/cs4232.c +++ /dev/null @@ -1,526 +0,0 @@ -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * cs4232.c - * - * The low level driver for Crystal CS4232 based cards. The CS4232 is - * a PnP compatible chip which contains a CS4231A codec, SB emulation, - * a MPU401 compatible MIDI port, joystick and synthesizer and IDE CD-ROM - * interfaces. This is just a temporary driver until full PnP support - * gets implemented. Just the WSS codec, FM synth and the MIDI ports are - * supported. Other interfaces are left uninitialized. - * - * ifdef ...WAVEFRONT... - * - * Support is provided for initializing the WaveFront synth - * interface as well, which is logical device #4. Note that if - * you have a Tropez+ card, you probably don't need to setup - * the CS4232-supported MIDI interface, since it corresponds to - * the internal 26-pin header that's hard to access. Using this - * requires an additional IRQ, a resource none too plentiful in - * this environment. Just don't set module parameters mpuio and - * mpuirq, and the MIDI port will be left uninitialized. You can - * still use the ICS2115 hosted MIDI interface which corresponds - * to the 9-pin D connector on the back of the card. - * - * endif ...WAVEFRONT... - * - * Supported chips are: - * CS4232 - * CS4236 - * CS4236B - * - * Note: You will need a PnP config setup to initialise some CS4232 boards - * anyway. - * - * Changes - * John Rood Added Bose Sound System Support. - * Toshio Spoor - * Alan Cox Modularisation, Basic cleanups. - * Paul Barton-Davis Separated MPU configuration, added - * Tropez+ (WaveFront) support - * Christoph Hellwig Adapted to module_init/module_exit, - * simple cleanups - * Arnaldo C. de Melo got rid of attach_uart401 - * Bartlomiej Zolnierkiewicz - * Added some __init/__initdata/__exit - * Marcus Meissner Added ISA PnP support. - */ - -#include <linux/pnp.h> -#include <linux/module.h> -#include <linux/init.h> - -#include "sound_config.h" - -#include "ad1848.h" -#include "mpu401.h" - -#define KEY_PORT 0x279 /* Same as LPT1 status port */ -#define CSN_NUM 0x99 /* Just a random number */ -#define INDEX_ADDRESS 0x00 /* (R0) Index Address Register */ -#define INDEX_DATA 0x01 /* (R1) Indexed Data Register */ -#define PIN_CONTROL 0x0a /* (I10) Pin Control */ -#define ENABLE_PINS 0xc0 /* XCTRL0/XCTRL1 enable */ - -static void CS_OUT(unsigned char a) -{ - outb(a, KEY_PORT); -} - -#define CS_OUT2(a, b) {CS_OUT(a);CS_OUT(b);} -#define CS_OUT3(a, b, c) {CS_OUT(a);CS_OUT(b);CS_OUT(c);} - -static int __initdata bss = 0; -static int mpu_base, mpu_irq; -static int synth_base, synth_irq; -static int mpu_detected; - -static int probe_cs4232_mpu(struct address_info *hw_config) -{ - /* - * Just write down the config values. - */ - - mpu_base = hw_config->io_base; - mpu_irq = hw_config->irq; - - return 1; -} - -static unsigned char crystal_key[] = /* A 32 byte magic key sequence */ -{ - 0x96, 0x35, 0x9a, 0xcd, 0xe6, 0xf3, 0x79, 0xbc, - 0x5e, 0xaf, 0x57, 0x2b, 0x15, 0x8a, 0xc5, 0xe2, - 0xf1, 0xf8, 0x7c, 0x3e, 0x9f, 0x4f, 0x27, 0x13, - 0x09, 0x84, 0x42, 0xa1, 0xd0, 0x68, 0x34, 0x1a -}; - -static void sleep(unsigned howlong) -{ - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(howlong); -} - -static void enable_xctrl(int baseio) -{ - unsigned char regd; - - /* - * Some IBM Aptiva's have the Bose Sound System. By default - * the Bose Amplifier is disabled. The amplifier will be - * activated, by setting the XCTRL0 and XCTRL1 bits. - * Volume of the monitor bose speakers/woofer, can then - * be set by changing the PCM volume. - * - */ - - printk("cs4232: enabling Bose Sound System Amplifier.\n"); - - /* Switch to Pin Control Address */ - regd = inb(baseio + INDEX_ADDRESS) & 0xe0; - outb(((unsigned char) (PIN_CONTROL | regd)), baseio + INDEX_ADDRESS ); - - /* Activate the XCTRL0 and XCTRL1 Pins */ - regd = inb(baseio + INDEX_DATA); - outb(((unsigned char) (ENABLE_PINS | regd)), baseio + INDEX_DATA ); -} - -static int __init probe_cs4232(struct address_info *hw_config, int isapnp_configured) -{ - int i, n; - int base = hw_config->io_base, irq = hw_config->irq; - int dma1 = hw_config->dma, dma2 = hw_config->dma2; - struct resource *ports; - - if (base == -1 || irq == -1 || dma1 == -1) { - printk(KERN_ERR "cs4232: dma, irq and io must be set.\n"); - return 0; - } - - /* - * Verify that the I/O port range is free. - */ - - ports = request_region(base, 4, "ad1848"); - if (!ports) { - printk(KERN_ERR "cs4232.c: I/O port 0x%03x not free\n", base); - return 0; - } - if (ad1848_detect(ports, NULL, hw_config->osp)) { - goto got_it; /* The card is already active */ - } - if (isapnp_configured) { - printk(KERN_ERR "cs4232.c: ISA PnP configured, but not detected?\n"); - goto fail; - } - - /* - * This version of the driver doesn't use the PnP method when configuring - * the card but a simplified method defined by Crystal. This means that - * just one CS4232 compatible device can exist on the system. Also this - * method conflicts with possible PnP support in the OS. For this reason - * driver is just a temporary kludge. - * - * Also the Cirrus/Crystal method doesn't always work. Try ISA PnP first ;) - */ - - /* - * Repeat initialization few times since it doesn't always succeed in - * first time. - */ - - for (n = 0; n < 4; n++) - { - /* - * Wake up the card by sending a 32 byte Crystal key to the key port. - */ - - for (i = 0; i < 32; i++) - CS_OUT(crystal_key[i]); - - sleep(HZ / 10); - - /* - * Now set the CSN (Card Select Number). - */ - - CS_OUT2(0x06, CSN_NUM); - - /* - * Then set some config bytes. First logical device 0 - */ - - CS_OUT2(0x15, 0x00); /* Select logical device 0 (WSS/SB/FM) */ - CS_OUT3(0x47, (base >> 8) & 0xff, base & 0xff); /* WSS base */ - - if (!request_region(0x388, 4, "FM")) /* Not free */ - CS_OUT3(0x48, 0x00, 0x00) /* FM base off */ - else { - release_region(0x388, 4); - CS_OUT3(0x48, 0x03, 0x88); /* FM base 0x388 */ - } - - CS_OUT3(0x42, 0x00, 0x00); /* SB base off */ - CS_OUT2(0x22, irq); /* SB+WSS IRQ */ - CS_OUT2(0x2a, dma1); /* SB+WSS DMA */ - - if (dma2 != -1) - CS_OUT2(0x25, dma2) /* WSS DMA2 */ - else - CS_OUT2(0x25, 4); /* No WSS DMA2 */ - - CS_OUT2(0x33, 0x01); /* Activate logical dev 0 */ - - sleep(HZ / 10); - - /* - * Initialize logical device 3 (MPU) - */ - - if (mpu_base != 0 && mpu_irq != 0) - { - CS_OUT2(0x15, 0x03); /* Select logical device 3 (MPU) */ - CS_OUT3(0x47, (mpu_base >> 8) & 0xff, mpu_base & 0xff); /* MPU base */ - CS_OUT2(0x22, mpu_irq); /* MPU IRQ */ - CS_OUT2(0x33, 0x01); /* Activate logical dev 3 */ - } - - if(synth_base != 0) - { - CS_OUT2 (0x15, 0x04); /* logical device 4 (WaveFront) */ - CS_OUT3 (0x47, (synth_base >> 8) & 0xff, - synth_base & 0xff); /* base */ - CS_OUT2 (0x22, synth_irq); /* IRQ */ - CS_OUT2 (0x33, 0x01); /* Activate logical dev 4 */ - } - - /* - * Finally activate the chip - */ - - CS_OUT(0x79); - - sleep(HZ / 5); - - /* - * Then try to detect the codec part of the chip - */ - - if (ad1848_detect(ports, NULL, hw_config->osp)) - goto got_it; - - sleep(HZ); - } -fail: - release_region(base, 4); - return 0; - -got_it: - if (dma2 == -1) - dma2 = dma1; - - hw_config->slots[0] = ad1848_init("Crystal audio controller", ports, - irq, - dma1, /* Playback DMA */ - dma2, /* Capture DMA */ - 0, - hw_config->osp, - THIS_MODULE); - - if (hw_config->slots[0] != -1 && - audio_devs[hw_config->slots[0]]->mixer_dev!=-1) - { - /* Assume the mixer map is as suggested in the CS4232 databook */ - AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_LINE); - AD1848_REROUTE(SOUND_MIXER_LINE2, SOUND_MIXER_CD); - AD1848_REROUTE(SOUND_MIXER_LINE3, SOUND_MIXER_SYNTH); /* FM synth */ - } - if (mpu_base != 0 && mpu_irq != 0) - { - static struct address_info hw_config2 = { - 0 - }; /* Ensure it's initialized */ - - hw_config2.io_base = mpu_base; - hw_config2.irq = mpu_irq; - hw_config2.dma = -1; - hw_config2.dma2 = -1; - hw_config2.always_detect = 0; - hw_config2.name = NULL; - hw_config2.driver_use_1 = 0; - hw_config2.driver_use_2 = 0; - hw_config2.card_subtype = 0; - - if (probe_uart401(&hw_config2, THIS_MODULE)) - { - mpu_detected = 1; - } - else - { - mpu_base = mpu_irq = 0; - } - hw_config->slots[1] = hw_config2.slots[1]; - } - - if (bss) - enable_xctrl(base); - - return 1; -} - -static void __devexit unload_cs4232(struct address_info *hw_config) -{ - int base = hw_config->io_base, irq = hw_config->irq; - int dma1 = hw_config->dma, dma2 = hw_config->dma2; - - if (dma2 == -1) - dma2 = dma1; - - ad1848_unload(base, - irq, - dma1, /* Playback DMA */ - dma2, /* Capture DMA */ - 0); - - sound_unload_audiodev(hw_config->slots[0]); - if (mpu_base != 0 && mpu_irq != 0 && mpu_detected) - { - static struct address_info hw_config2 = - { - 0 - }; /* Ensure it's initialized */ - - hw_config2.io_base = mpu_base; - hw_config2.irq = mpu_irq; - hw_config2.dma = -1; - hw_config2.dma2 = -1; - hw_config2.always_detect = 0; - hw_config2.name = NULL; - hw_config2.driver_use_1 = 0; - hw_config2.driver_use_2 = 0; - hw_config2.card_subtype = 0; - hw_config2.slots[1] = hw_config->slots[1]; - - unload_uart401(&hw_config2); - } -} - -static struct address_info cfg; -static struct address_info cfg_mpu; - -static int __initdata io = -1; -static int __initdata irq = -1; -static int __initdata dma = -1; -static int __initdata dma2 = -1; -static int __initdata mpuio = -1; -static int __initdata mpuirq = -1; -static int __initdata synthio = -1; -static int __initdata synthirq = -1; -static int __initdata isapnp = 1; - -static unsigned int cs4232_devices; - -MODULE_DESCRIPTION("CS4232 based soundcard driver"); -MODULE_AUTHOR("Hannu Savolainen, Paul Barton-Davis"); -MODULE_LICENSE("GPL"); - -module_param(io, int, 0); -MODULE_PARM_DESC(io,"base I/O port for AD1848"); -module_param(irq, int, 0); -MODULE_PARM_DESC(irq,"IRQ for AD1848 chip"); -module_param(dma, int, 0); -MODULE_PARM_DESC(dma,"8 bit DMA for AD1848 chip"); -module_param(dma2, int, 0); -MODULE_PARM_DESC(dma2,"16 bit DMA for AD1848 chip"); -module_param(mpuio, int, 0); -MODULE_PARM_DESC(mpuio,"MPU 401 base address"); -module_param(mpuirq, int, 0); -MODULE_PARM_DESC(mpuirq,"MPU 401 IRQ"); -module_param(synthio, int, 0); -MODULE_PARM_DESC(synthio,"Maui WaveTable base I/O port"); -module_param(synthirq, int, 0); -MODULE_PARM_DESC(synthirq,"Maui WaveTable IRQ"); -module_param(isapnp, bool, 0); -MODULE_PARM_DESC(isapnp,"Enable ISAPnP probing (default 1)"); -module_param(bss, bool, 0); -MODULE_PARM_DESC(bss,"Enable Bose Sound System Support (default 0)"); - -/* - * Install a CS4232 based card. Need to have ad1848 and mpu401 - * loaded ready. - */ - -/* All cs4232 based cards have the main ad1848 card either as CSC0000 or - * CSC0100. */ -static const struct pnp_device_id cs4232_pnp_table[] = { - { .id = "CSC0100", .driver_data = 0 }, - { .id = "CSC0000", .driver_data = 0 }, - /* Guillemot Turtlebeach something appears to be cs4232 compatible - * (untested) */ - { .id = "GIM0100", .driver_data = 0 }, - { .id = ""} -}; - -MODULE_DEVICE_TABLE(pnp, cs4232_pnp_table); - -static int __init cs4232_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) -{ - struct address_info *isapnpcfg; - - isapnpcfg = kmalloc(sizeof(*isapnpcfg),GFP_KERNEL); - if (!isapnpcfg) - return -ENOMEM; - - isapnpcfg->irq = pnp_irq(dev, 0); - isapnpcfg->dma = pnp_dma(dev, 0); - isapnpcfg->dma2 = pnp_dma(dev, 1); - isapnpcfg->io_base = pnp_port_start(dev, 0); - if (probe_cs4232(isapnpcfg,TRUE) == 0) { - printk(KERN_ERR "cs4232: ISA PnP card found, but not detected?\n"); - kfree(isapnpcfg); - return -ENODEV; - } - pnp_set_drvdata(dev,isapnpcfg); - cs4232_devices++; - return 0; -} - -static void __devexit cs4232_pnp_remove(struct pnp_dev *dev) -{ - struct address_info *cfg = pnp_get_drvdata(dev); - if (cfg) { - unload_cs4232(cfg); - kfree(cfg); - } -} - -static struct pnp_driver cs4232_driver = { - .name = "cs4232", - .id_table = cs4232_pnp_table, - .probe = cs4232_pnp_probe, - .remove = __devexit_p(cs4232_pnp_remove), -}; - -static int __init init_cs4232(void) -{ -#ifdef CONFIG_SOUND_WAVEFRONT_MODULE - if(synthio == -1) - printk(KERN_INFO "cs4232: set synthio and synthirq to use the wavefront facilities.\n"); - else { - synth_base = synthio; - synth_irq = synthirq; - } -#else - if(synthio != -1) - printk(KERN_WARNING "cs4232: wavefront support not enabled in this driver.\n"); -#endif - cfg.irq = -1; - - if (isapnp) { - pnp_register_driver(&cs4232_driver); - if (cs4232_devices) - return 0; - } - - if(io==-1||irq==-1||dma==-1) - { - printk(KERN_ERR "cs4232: Must set io, irq and dma.\n"); - return -ENODEV; - } - - cfg.io_base = io; - cfg.irq = irq; - cfg.dma = dma; - cfg.dma2 = dma2; - - cfg_mpu.io_base = -1; - cfg_mpu.irq = -1; - - if (mpuio != -1 && mpuirq != -1) { - cfg_mpu.io_base = mpuio; - cfg_mpu.irq = mpuirq; - probe_cs4232_mpu(&cfg_mpu); /* Bug always returns 0 not OK -- AC */ - } - - if (probe_cs4232(&cfg,FALSE) == 0) - return -ENODEV; - - return 0; -} - -static void __exit cleanup_cs4232(void) -{ - pnp_unregister_driver(&cs4232_driver); - if (cfg.irq != -1) - unload_cs4232(&cfg); /* Unloads global MPU as well, if needed */ -} - -module_init(init_cs4232); -module_exit(cleanup_cs4232); - -#ifndef MODULE -static int __init setup_cs4232(char *str) -{ - /* io, irq, dma, dma2 mpuio, mpuirq*/ - int ints[7]; - - /* If we have isapnp cards, no need for options */ - pnp_register_driver(&cs4232_driver); - if (cs4232_devices) - return 1; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - io = ints[1]; - irq = ints[2]; - dma = ints[3]; - dma2 = ints[4]; - mpuio = ints[5]; - mpuirq = ints[6]; - - return 1; -} - -__setup("cs4232=", setup_cs4232); -#endif diff --git a/sound/oss/i810_audio.c b/sound/oss/i810_audio.c deleted file mode 100644 index f5e31f11973d..000000000000 --- a/sound/oss/i810_audio.c +++ /dev/null @@ -1,3656 +0,0 @@ -/* - * Intel i810 and friends ICH driver for Linux - * Alan Cox <alan@redhat.com> - * - * Built from: - * Low level code: Zach Brown (original nonworking i810 OSS driver) - * Jaroslav Kysela <perex@suse.cz> (working ALSA driver) - * - * Framework: Thomas Sailer <sailer@ife.ee.ethz.ch> - * Extended by: Zach Brown <zab@redhat.com> - * and others.. - * - * Hardware Provided By: - * Analog Devices (A major AC97 codec maker) - * Intel Corp (you've probably heard of them already) - * - * AC97 clues and assistance provided by - * Analog Devices - * Zach 'Fufu' Brown - * Jeff Garzik - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * - * Intel 810 theory of operation - * - * The chipset provides three DMA channels that talk to an AC97 - * CODEC (AC97 is a digital/analog mixer standard). At its simplest - * you get 48Khz audio with basic volume and mixer controls. At the - * best you get rate adaption in the codec. We set the card up so - * that we never take completion interrupts but instead keep the card - * chasing its tail around a ring buffer. This is needed for mmap - * mode audio and happens to work rather well for non-mmap modes too. - * - * The board has one output channel for PCM audio (supported) and - * a stereo line in and mono microphone input. Again these are normally - * locked to 48Khz only. Right now recording is not finished. - * - * There is no midi support, no synth support. Use timidity. To get - * esd working you need to use esd -r 48000 as it won't probe 48KHz - * by default. mpg123 can't handle 48Khz only audio so use xmms. - * - * Fix The Sound On Dell - * - * Not everyone uses 48KHz. We know of no way to detect this reliably - * and certainly not to get the right data. If your i810 audio sounds - * stupid you may need to investigate other speeds. According to Analog - * they tend to use a 14.318MHz clock which gives you a base rate of - * 41194Hz. - * - * This is available via the 'ftsodell=1' option. - * - * If you need to force a specific rate set the clocking= option - * - * This driver is cursed. (Ben LaHaise) - * - * ICH 3 caveats - * Intel errata #7 for ICH3 IO. We need to disable SMI stuff - * when codec probing. [Not Yet Done] - * - * ICH 4 caveats - * - * The ICH4 has the feature, that the codec ID doesn't have to be - * congruent with the IO connection. - * - * Therefore, from driver version 0.23 on, there is a "codec ID" <-> - * "IO register base offset" mapping (card->ac97_id_map) field. - * - * Juergen "George" Sawinski (jsaw) - */ - -#include <linux/module.h> -#include <linux/string.h> -#include <linux/ctype.h> -#include <linux/ioport.h> -#include <linux/sched.h> -#include <linux/delay.h> -#include <linux/sound.h> -#include <linux/slab.h> -#include <linux/soundcard.h> -#include <linux/pci.h> -#include <linux/interrupt.h> -#include <asm/io.h> -#include <asm/dma.h> -#include <linux/init.h> -#include <linux/poll.h> -#include <linux/spinlock.h> -#include <linux/smp_lock.h> -#include <linux/ac97_codec.h> -#include <linux/bitops.h> -#include <linux/mutex.h> -#include <linux/mm.h> - -#include <asm/uaccess.h> - -#define DRIVER_VERSION "1.01" - -#define MODULOP2(a, b) ((a) & ((b) - 1)) -#define MASKP2(a, b) ((a) & ~((b) - 1)) - -static int ftsodell; -static int strict_clocking; -static unsigned int clocking; -static int spdif_locked; -static int ac97_quirk = AC97_TUNE_DEFAULT; - -//#define DEBUG -//#define DEBUG2 -//#define DEBUG_INTERRUPTS -//#define DEBUG_MMAP -//#define DEBUG_MMIO - -#define ADC_RUNNING 1 -#define DAC_RUNNING 2 - -#define I810_FMT_16BIT 1 -#define I810_FMT_STEREO 2 -#define I810_FMT_MASK 3 - -#define SPDIF_ON 0x0004 -#define SURR_ON 0x0010 -#define CENTER_LFE_ON 0x0020 -#define VOL_MUTED 0x8000 - -/* the 810's array of pointers to data buffers */ - -struct sg_item { -#define BUSADDR_MASK 0xFFFFFFFE - u32 busaddr; -#define CON_IOC 0x80000000 /* interrupt on completion */ -#define CON_BUFPAD 0x40000000 /* pad underrun with last sample, else 0 */ -#define CON_BUFLEN_MASK 0x0000ffff /* buffer length in samples */ - u32 control; -}; - -/* an instance of the i810 channel */ -#define SG_LEN 32 -struct i810_channel -{ - /* these sg guys should probably be allocated - separately as nocache. Must be 8 byte aligned */ - struct sg_item sg[SG_LEN]; /* 32*8 */ - u32 offset; /* 4 */ - u32 port; /* 4 */ - u32 used; - u32 num; -}; - -/* - * we have 3 separate dma engines. pcm in, pcm out, and mic. - * each dma engine has controlling registers. These goofy - * names are from the datasheet, but make it easy to write - * code while leafing through it. - * - * ICH4 has 6 dma engines, pcm in, pcm out, mic, pcm in 2, - * mic in 2, s/pdif. Of special interest is the fact that - * the upper 3 DMA engines on the ICH4 *must* be accessed - * via mmio access instead of pio access. - */ - -#define ENUM_ENGINE(PRE,DIG) \ -enum { \ - PRE##_BASE = 0x##DIG##0, /* Base Address */ \ - PRE##_BDBAR = 0x##DIG##0, /* Buffer Descriptor list Base Address */ \ - PRE##_CIV = 0x##DIG##4, /* Current Index Value */ \ - PRE##_LVI = 0x##DIG##5, /* Last Valid Index */ \ - PRE##_SR = 0x##DIG##6, /* Status Register */ \ - PRE##_PICB = 0x##DIG##8, /* Position In Current Buffer */ \ - PRE##_PIV = 0x##DIG##a, /* Prefetched Index Value */ \ - PRE##_CR = 0x##DIG##b /* Control Register */ \ -} - -ENUM_ENGINE(OFF,0); /* Offsets */ -ENUM_ENGINE(PI,0); /* PCM In */ -ENUM_ENGINE(PO,1); /* PCM Out */ -ENUM_ENGINE(MC,2); /* Mic In */ - -enum { - GLOB_CNT = 0x2c, /* Global Control */ - GLOB_STA = 0x30, /* Global Status */ - CAS = 0x34 /* Codec Write Semaphore Register */ -}; - -ENUM_ENGINE(MC2,4); /* Mic In 2 */ -ENUM_ENGINE(PI2,5); /* PCM In 2 */ -ENUM_ENGINE(SP,6); /* S/PDIF */ - -enum { - SDM = 0x80 /* SDATA_IN Map Register */ -}; - -/* interrupts for a dma engine */ -#define DMA_INT_FIFO (1<<4) /* fifo under/over flow */ -#define DMA_INT_COMPLETE (1<<3) /* buffer read/write complete and ioc set */ -#define DMA_INT_LVI (1<<2) /* last valid done */ -#define DMA_INT_CELV (1<<1) /* last valid is current */ -#define DMA_INT_DCH (1) /* DMA Controller Halted (happens on LVI interrupts) */ -#define DMA_INT_MASK (DMA_INT_FIFO|DMA_INT_COMPLETE|DMA_INT_LVI) - -/* interrupts for the whole chip */ -#define INT_SEC (1<<11) -#define INT_PRI (1<<10) -#define INT_MC (1<<7) -#define INT_PO (1<<6) -#define INT_PI (1<<5) -#define INT_MO (1<<2) -#define INT_NI (1<<1) -#define INT_GPI (1<<0) -#define INT_MASK (INT_SEC|INT_PRI|INT_MC|INT_PO|INT_PI|INT_MO|INT_NI|INT_GPI) - -/* magic numbers to protect our data structures */ -#define I810_CARD_MAGIC 0x5072696E /* "Prin" */ -#define I810_STATE_MAGIC 0x63657373 /* "cess" */ -#define I810_DMA_MASK 0xffffffff /* DMA buffer mask for pci_alloc_consist */ -#define NR_HW_CH 3 - -/* maxinum number of AC97 codecs connected, AC97 2.0 defined 4 */ -#define NR_AC97 4 - -/* Please note that an 8bit mono stream is not valid on this card, you must have a 16bit */ -/* stream at a minimum for this card to be happy */ -static const unsigned sample_size[] = { 1, 2, 2, 4 }; -/* Samples are 16bit values, so we are shifting to a word, not to a byte, hence shift */ -/* values are one less than might be expected */ -static const unsigned sample_shift[] = { -1, 0, 0, 1 }; - -enum { - ICH82801AA = 0, - ICH82901AB, - INTEL440MX, - INTELICH2, - INTELICH3, - INTELICH4, - INTELICH5, - SI7012, - NVIDIA_NFORCE, - AMD768, - AMD8111 -}; - -static char * card_names[] = { - "Intel ICH 82801AA", - "Intel ICH 82901AB", - "Intel 440MX", - "Intel ICH2", - "Intel ICH3", - "Intel ICH4", - "Intel ICH5", - "SiS 7012", - "NVIDIA nForce Audio", - "AMD 768", - "AMD-8111 IOHub" -}; - -/* These are capabilities (and bugs) the chipsets _can_ have */ -static struct { - int16_t nr_ac97; -#define CAP_MMIO 0x0001 -#define CAP_20BIT_AUDIO_SUPPORT 0x0002 - u_int16_t flags; -} card_cap[] = { - { 1, 0x0000 }, /* ICH82801AA */ - { 1, 0x0000 }, /* ICH82901AB */ - { 1, 0x0000 }, /* INTEL440MX */ - { 1, 0x0000 }, /* INTELICH2 */ - { 2, 0x0000 }, /* INTELICH3 */ - { 3, 0x0003 }, /* INTELICH4 */ - { 3, 0x0003 }, /* INTELICH5 */ - /*@FIXME to be verified*/ { 2, 0x0000 }, /* SI7012 */ - /*@FIXME to be verified*/ { 2, 0x0000 }, /* NVIDIA_NFORCE */ - /*@FIXME to be verified*/ { 2, 0x0000 }, /* AMD768 */ - /*@FIXME to be verified*/ { 3, 0x0001 }, /* AMD8111 */ -}; - -static struct pci_device_id i810_pci_tbl [] = { - {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_5, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, ICH82801AA}, - {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_5, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, ICH82901AB}, - {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_440MX, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTEL440MX}, - {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_4, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTELICH2}, - {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_5, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTELICH3}, - {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_5, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTELICH4}, - {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_5, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTELICH5}, - {PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_7012, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, SI7012}, - {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, NVIDIA_NFORCE}, - {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, NVIDIA_NFORCE}, - {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, NVIDIA_NFORCE}, - {PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_OPUS_7445, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, AMD768}, - {PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_AUDIO, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, AMD8111}, - {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_5, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTELICH4}, - {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_18, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, INTELICH4}, - {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, NVIDIA_NFORCE}, - {0,} -}; - -MODULE_DEVICE_TABLE (pci, i810_pci_tbl); - -#ifdef CONFIG_PM -#define PM_SUSPENDED(card) (card->pm_suspended) -#else -#define PM_SUSPENDED(card) (0) -#endif - -/* "software" or virtual channel, an instance of opened /dev/dsp */ -struct i810_state { - unsigned int magic; - struct i810_card *card; /* Card info */ - - /* single open lock mechanism, only used for recording */ - struct mutex open_mutex; - wait_queue_head_t open_wait; - - /* file mode */ - mode_t open_mode; - - /* virtual channel number */ - int virt; - -#ifdef CONFIG_PM - unsigned int pm_saved_dac_rate,pm_saved_adc_rate; -#endif - struct dmabuf { - /* wave sample stuff */ - unsigned int rate; - unsigned char fmt, enable, trigger; - - /* hardware channel */ - struct i810_channel *read_channel; - struct i810_channel *write_channel; - - /* OSS buffer management stuff */ - void *rawbuf; - dma_addr_t dma_handle; - unsigned buforder; - unsigned numfrag; - unsigned fragshift; - - /* our buffer acts like a circular ring */ - unsigned hwptr; /* where dma last started, updated by update_ptr */ - unsigned swptr; /* where driver last clear/filled, updated by read/write */ - int count; /* bytes to be consumed or been generated by dma machine */ - unsigned total_bytes; /* total bytes dmaed by hardware */ - - unsigned error; /* number of over/underruns */ - wait_queue_head_t wait; /* put process on wait queue when no more space in buffer */ - - /* redundant, but makes calculations easier */ - /* what the hardware uses */ - unsigned dmasize; - unsigned fragsize; - unsigned fragsamples; - - /* what we tell the user to expect */ - unsigned userfrags; - unsigned userfragsize; - - /* OSS stuff */ - unsigned mapped:1; - unsigned ready:1; - unsigned update_flag; - unsigned ossfragsize; - unsigned ossmaxfrags; - unsigned subdivision; - } dmabuf; -}; - - -struct i810_card { - unsigned int magic; - - /* We keep i810 cards in a linked list */ - struct i810_card *next; - - /* The i810 has a certain amount of cross channel interaction - so we use a single per card lock */ - spinlock_t lock; - - /* Control AC97 access serialization */ - spinlock_t ac97_lock; - - /* PCI device stuff */ - struct pci_dev * pci_dev; - u16 pci_id; - u16 pci_id_internal; /* used to access card_cap[] */ -#ifdef CONFIG_PM - u16 pm_suspended; - int pm_saved_mixer_settings[SOUND_MIXER_NRDEVICES][NR_AC97]; -#endif - /* soundcore stuff */ - int dev_audio; - - /* structures for abstraction of hardware facilities, codecs, banks and channels*/ - u16 ac97_id_map[NR_AC97]; - struct ac97_codec *ac97_codec[NR_AC97]; - struct i810_state *states[NR_HW_CH]; - struct i810_channel *channel; /* 1:1 to states[] but diff. lifetime */ - dma_addr_t chandma; - - u16 ac97_features; - u16 ac97_status; - u16 channels; - - /* hardware resources */ - unsigned long ac97base; - unsigned long iobase; - u32 irq; - - unsigned long ac97base_mmio_phys; - unsigned long iobase_mmio_phys; - u_int8_t __iomem *ac97base_mmio; - u_int8_t __iomem *iobase_mmio; - - int use_mmio; - - /* Function support */ - struct i810_channel *(*alloc_pcm_channel)(struct i810_card *); - struct i810_channel *(*alloc_rec_pcm_channel)(struct i810_card *); - struct i810_channel *(*alloc_rec_mic_channel)(struct i810_card *); - void (*free_pcm_channel)(struct i810_card *, int chan); - - /* We have a *very* long init time possibly, so use this to block */ - /* attempts to open our devices before we are ready (stops oops'es) */ - int initializing; -}; - -/* extract register offset from codec struct */ -#define IO_REG_OFF(codec) (((struct i810_card *) codec->private_data)->ac97_id_map[codec->id]) - -#define I810_IOREAD(size, type, card, off) \ -({ \ - type val; \ - if (card->use_mmio) \ - val=read##size(card->iobase_mmio+off); \ - else \ - val=in##size(card->iobase+off); \ - val; \ -}) - -#define I810_IOREADL(card, off) I810_IOREAD(l, u32, card, off) -#define I810_IOREADW(card, off) I810_IOREAD(w, u16, card, off) -#define I810_IOREADB(card, off) I810_IOREAD(b, u8, card, off) - -#define I810_IOWRITE(size, val, card, off) \ -({ \ - if (card->use_mmio) \ - write##size(val, card->iobase_mmio+off); \ - else \ - out##size(val, card->iobase+off); \ -}) - -#define I810_IOWRITEL(val, card, off) I810_IOWRITE(l, val, card, off) -#define I810_IOWRITEW(val, card, off) I810_IOWRITE(w, val, card, off) -#define I810_IOWRITEB(val, card, off) I810_IOWRITE(b, val, card, off) - -#define GET_CIV(card, port) MODULOP2(I810_IOREADB((card), (port) + OFF_CIV), SG_LEN) -#define GET_LVI(card, port) MODULOP2(I810_IOREADB((card), (port) + OFF_LVI), SG_LEN) - -/* set LVI from CIV */ -#define CIV_TO_LVI(card, port, off) \ - I810_IOWRITEB(MODULOP2(GET_CIV((card), (port)) + (off), SG_LEN), (card), (port) + OFF_LVI) - -static struct ac97_quirk ac97_quirks[] __devinitdata = { - { - .vendor = 0x0e11, - .device = 0x00b8, - .name = "Compaq Evo D510C", - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x1028, - .device = 0x00d8, - .name = "Dell Precision 530", /* AD1885 */ - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x1028, - .device = 0x0126, - .name = "Dell Optiplex GX260", /* AD1981A */ - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x1028, - .device = 0x012d, - .name = "Dell Precision 450", /* AD1981B*/ - .type = AC97_TUNE_HP_ONLY - }, - { /* FIXME: which codec? */ - .vendor = 0x103c, - .device = 0x00c3, - .name = "Hewlett-Packard onboard", - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x103c, - .device = 0x12f1, - .name = "HP xw8200", /* AD1981B*/ - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x103c, - .device = 0x3008, - .name = "HP xw4200", /* AD1981B*/ - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x10f1, - .device = 0x2665, - .name = "Fujitsu-Siemens Celsius", /* AD1981? */ - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x10f1, - .device = 0x2885, - .name = "AMD64 Mobo", /* ALC650 */ - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x110a, - .device = 0x0056, - .name = "Fujitsu-Siemens Scenic", /* AD1981? */ - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x11d4, - .device = 0x5375, - .name = "ADI AD1985 (discrete)", - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x1462, - .device = 0x5470, - .name = "MSI P4 ATX 645 Ultra", - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x1734, - .device = 0x0088, - .name = "Fujitsu-Siemens D1522", /* AD1981 */ - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x8086, - .device = 0x4856, - .name = "Intel D845WN (82801BA)", - .type = AC97_TUNE_SWAP_HP - }, - { - .vendor = 0x8086, - .device = 0x4d44, - .name = "Intel D850EMV2", /* AD1885 */ - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x8086, - .device = 0x4d56, - .name = "Intel ICH/AD1885", - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x1028, - .device = 0x012d, - .name = "Dell Precision 450", /* AD1981B*/ - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x103c, - .device = 0x3008, - .name = "HP xw4200", /* AD1981B*/ - .type = AC97_TUNE_HP_ONLY - }, - { - .vendor = 0x103c, - .device = 0x12f1, - .name = "HP xw8200", /* AD1981B*/ - .type = AC97_TUNE_HP_ONLY - }, - { } /* terminator */ -}; - -static struct i810_card *devs = NULL; - -static int i810_open_mixdev(struct inode *inode, struct file *file); -static int i810_ioctl_mixdev(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg); -static u16 i810_ac97_get(struct ac97_codec *dev, u8 reg); -static void i810_ac97_set(struct ac97_codec *dev, u8 reg, u16 data); -static u16 i810_ac97_get_mmio(struct ac97_codec *dev, u8 reg); -static void i810_ac97_set_mmio(struct ac97_codec *dev, u8 reg, u16 data); -static u16 i810_ac97_get_io(struct ac97_codec *dev, u8 reg); -static void i810_ac97_set_io(struct ac97_codec *dev, u8 reg, u16 data); - -static struct i810_channel *i810_alloc_pcm_channel(struct i810_card *card) -{ - if(card->channel[1].used==1) - return NULL; - card->channel[1].used=1; - return &card->channel[1]; -} - -static struct i810_channel *i810_alloc_rec_pcm_channel(struct i810_card *card) -{ - if(card->channel[0].used==1) - return NULL; - card->channel[0].used=1; - return &card->channel[0]; -} - -static struct i810_channel *i810_alloc_rec_mic_channel(struct i810_card *card) -{ - if(card->channel[2].used==1) - return NULL; - card->channel[2].used=1; - return &card->channel[2]; -} - -static void i810_free_pcm_channel(struct i810_card *card, int channel) -{ - card->channel[channel].used=0; -} - -static int i810_valid_spdif_rate ( struct ac97_codec *codec, int rate ) -{ - unsigned long id = 0L; - - id = (i810_ac97_get(codec, AC97_VENDOR_ID1) << 16); - id |= i810_ac97_get(codec, AC97_VENDOR_ID2) & 0xffff; -#ifdef DEBUG - printk ( "i810_audio: codec = %s, codec_id = 0x%08lx\n", codec->name, id); -#endif - switch ( id ) { - case 0x41445361: /* AD1886 */ - if (rate == 48000) { - return 1; - } - break; - default: /* all other codecs, until we know otherwiae */ - if (rate == 48000 || rate == 44100 || rate == 32000) { - return 1; - } - break; - } - return (0); -} - -/* i810_set_spdif_output - * - * Configure the S/PDIF output transmitter. When we turn on - * S/PDIF, we turn off the analog output. This may not be - * the right thing to do. - * - * Assumptions: - * The DSP sample rate must already be set to a supported - * S/PDIF rate (32kHz, 44.1kHz, or 48kHz) or we abort. - */ -static int i810_set_spdif_output(struct i810_state *state, int slots, int rate) -{ - int vol; - int aud_reg; - int r = 0; - struct ac97_codec *codec = state->card->ac97_codec[0]; - - if(!codec->codec_ops->digital) { - state->card->ac97_status &= ~SPDIF_ON; - } else { - if ( slots == -1 ) { /* Turn off S/PDIF */ - codec->codec_ops->digital(codec, 0, 0, 0); - /* If the volume wasn't muted before we turned on S/PDIF, unmute it */ - if ( !(state->card->ac97_status & VOL_MUTED) ) { - aud_reg = i810_ac97_get(codec, AC97_MASTER_VOL_STEREO); - i810_ac97_set(codec, AC97_MASTER_VOL_STEREO, (aud_reg & ~VOL_MUTED)); - } - state->card->ac97_status &= ~(VOL_MUTED | SPDIF_ON); - return 0; - } - - vol = i810_ac97_get(codec, AC97_MASTER_VOL_STEREO); - state->card->ac97_status = vol & VOL_MUTED; - - r = codec->codec_ops->digital(codec, slots, rate, 0); - - if(r) - state->card->ac97_status |= SPDIF_ON; - else - state->card->ac97_status &= ~SPDIF_ON; - - /* Mute the analog output */ - /* Should this only mute the PCM volume??? */ - i810_ac97_set(codec, AC97_MASTER_VOL_STEREO, (vol | VOL_MUTED)); - } - return r; -} - -/* i810_set_dac_channels - * - * Configure the codec's multi-channel DACs - * - * The logic is backwards. Setting the bit to 1 turns off the DAC. - * - * What about the ICH? We currently configure it using the - * SNDCTL_DSP_CHANNELS ioctl. If we're turnning on the DAC, - * does that imply that we want the ICH set to support - * these channels? - * - * TODO: - * vailidate that the codec really supports these DACs - * before turning them on. - */ -static void i810_set_dac_channels(struct i810_state *state, int channel) -{ - int aud_reg; - struct ac97_codec *codec = state->card->ac97_codec[0]; - - /* No codec, no setup */ - - if(codec == NULL) - return; - - aud_reg = i810_ac97_get(codec, AC97_EXTENDED_STATUS); - aud_reg |= AC97_EA_PRI | AC97_EA_PRJ | AC97_EA_PRK; - state->card->ac97_status &= ~(SURR_ON | CENTER_LFE_ON); - - switch ( channel ) { - case 2: /* always enabled */ - break; - case 4: - aud_reg &= ~AC97_EA_PRJ; - state->card->ac97_status |= SURR_ON; - break; - case 6: - aud_reg &= ~(AC97_EA_PRJ | AC97_EA_PRI | AC97_EA_PRK); - state->card->ac97_status |= SURR_ON | CENTER_LFE_ON; - break; - default: - break; - } - i810_ac97_set(codec, AC97_EXTENDED_STATUS, aud_reg); - -} - - -/* set playback sample rate */ -static unsigned int i810_set_dac_rate(struct i810_state * state, unsigned int rate) -{ - struct dmabuf *dmabuf = &state->dmabuf; - u32 new_rate; - struct ac97_codec *codec=state->card->ac97_codec[0]; - - if(!(state->card->ac97_features&0x0001)) - { - dmabuf->rate = clocking; -#ifdef DEBUG - printk("Asked for %d Hz, but ac97_features says we only do %dHz. Sorry!\n", - rate,clocking); -#endif - return clocking; - } - - if (rate > 48000) - rate = 48000; - if (rate < 8000) - rate = 8000; - dmabuf->rate = rate; - - /* - * Adjust for misclocked crap - */ - rate = ( rate * clocking)/48000; - if(strict_clocking && rate < 8000) { - rate = 8000; - dmabuf->rate = (rate * 48000)/clocking; - } - - new_rate=ac97_set_dac_rate(codec, rate); - if(new_rate != rate) { - dmabuf->rate = (new_rate * 48000)/clocking; - } -#ifdef DEBUG - printk("i810_audio: called i810_set_dac_rate : asked for %d, got %d\n", rate, dmabuf->rate); -#endif - rate = new_rate; - return dmabuf->rate; -} - -/* set recording sample rate */ -static unsigned int i810_set_adc_rate(struct i810_state * state, unsigned int rate) -{ - struct dmabuf *dmabuf = &state->dmabuf; - u32 new_rate; - struct ac97_codec *codec=state->card->ac97_codec[0]; - - if(!(state->card->ac97_features&0x0001)) - { - dmabuf->rate = clocking; - return clocking; - } - - if (rate > 48000) - rate = 48000; - if (rate < 8000) - rate = 8000; - dmabuf->rate = rate; - - /* - * Adjust for misclocked crap - */ - - rate = ( rate * clocking)/48000; - if(strict_clocking && rate < 8000) { - rate = 8000; - dmabuf->rate = (rate * 48000)/clocking; - } - - new_rate = ac97_set_adc_rate(codec, rate); - - if(new_rate != rate) { - dmabuf->rate = (new_rate * 48000)/clocking; - rate = new_rate; - } -#ifdef DEBUG - printk("i810_audio: called i810_set_adc_rate : rate = %d/%d\n", dmabuf->rate, rate); -#endif - return dmabuf->rate; -} - -/* get current playback/recording dma buffer pointer (byte offset from LBA), - called with spinlock held! */ - -static inline unsigned i810_get_dma_addr(struct i810_state *state, int rec) -{ - struct dmabuf *dmabuf = &state->dmabuf; - unsigned int civ, offset, port, port_picb, bytes = 2; - - if (!dmabuf->enable) - return 0; - - if (rec) - port = dmabuf->read_channel->port; - else - port = dmabuf->write_channel->port; - - if(state->card->pci_id == PCI_DEVICE_ID_SI_7012) { - port_picb = port + OFF_SR; - bytes = 1; - } else - port_picb = port + OFF_PICB; - - do { - civ = GET_CIV(state->card, port); - offset = I810_IOREADW(state->card, port_picb); - /* Must have a delay here! */ - if(offset == 0) - udelay(1); - /* Reread both registers and make sure that that total - * offset from the first reading to the second is 0. - * There is an issue with SiS hardware where it will count - * picb down to 0, then update civ to the next value, - * then set the new picb to fragsize bytes. We can catch - * it between the civ update and the picb update, making - * it look as though we are 1 fragsize ahead of where we - * are. The next to we get the address though, it will - * be back in the right place, and we will suddenly think - * we just went forward dmasize - fragsize bytes, causing - * totally stupid *huge* dma overrun messages. We are - * assuming that the 1us delay is more than long enough - * that we won't have to worry about the chip still being - * out of sync with reality ;-) - */ - } while (civ != GET_CIV(state->card, port) || offset != I810_IOREADW(state->card, port_picb)); - - return (((civ + 1) * dmabuf->fragsize - (bytes * offset)) - % dmabuf->dmasize); -} - -/* Stop recording (lock held) */ -static inline void __stop_adc(struct i810_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - struct i810_card *card = state->card; - - dmabuf->enable &= ~ADC_RUNNING; - I810_IOWRITEB(0, card, PI_CR); - // wait for the card to acknowledge shutdown - while( I810_IOREADB(card, PI_CR) != 0 ) ; - // now clear any latent interrupt bits (like the halt bit) - if(card->pci_id == PCI_DEVICE_ID_SI_7012) - I810_IOWRITEB( I810_IOREADB(card, PI_PICB), card, PI_PICB ); - else - I810_IOWRITEB( I810_IOREADB(card, PI_SR), card, PI_SR ); - I810_IOWRITEL( I810_IOREADL(card, GLOB_STA) & INT_PI, card, GLOB_STA); -} - -static void stop_adc(struct i810_state *state) -{ - struct i810_card *card = state->card; - unsigned long flags; - - spin_lock_irqsave(&card->lock, flags); - __stop_adc(state); - spin_unlock_irqrestore(&card->lock, flags); -} - -static inline void __start_adc(struct i810_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - - if (dmabuf->count < dmabuf->dmasize && dmabuf->ready && !dmabuf->enable && - (dmabuf->trigger & PCM_ENABLE_INPUT)) { - dmabuf->enable |= ADC_RUNNING; - // Interrupt enable, LVI enable, DMA enable - I810_IOWRITEB(0x10 | 0x04 | 0x01, state->card, PI_CR); - } -} - -static void start_adc(struct i810_state *state) -{ - struct i810_card *card = state->card; - unsigned long flags; - - spin_lock_irqsave(&card->lock, flags); - __start_adc(state); - spin_unlock_irqrestore(&card->lock, flags); -} - -/* stop playback (lock held) */ -static inline void __stop_dac(struct i810_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - struct i810_card *card = state->card; - - dmabuf->enable &= ~DAC_RUNNING; - I810_IOWRITEB(0, card, PO_CR); - // wait for the card to acknowledge shutdown - while( I810_IOREADB(card, PO_CR) != 0 ) ; - // now clear any latent interrupt bits (like the halt bit) - if(card->pci_id == PCI_DEVICE_ID_SI_7012) - I810_IOWRITEB( I810_IOREADB(card, PO_PICB), card, PO_PICB ); - else - I810_IOWRITEB( I810_IOREADB(card, PO_SR), card, PO_SR ); - I810_IOWRITEL( I810_IOREADL(card, GLOB_STA) & INT_PO, card, GLOB_STA); -} - -static void stop_dac(struct i810_state *state) -{ - struct i810_card *card = state->card; - unsigned long flags; - - spin_lock_irqsave(&card->lock, flags); - __stop_dac(state); - spin_unlock_irqrestore(&card->lock, flags); -} - -static inline void __start_dac(struct i810_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - - if (dmabuf->count > 0 && dmabuf->ready && !dmabuf->enable && - (dmabuf->trigger & PCM_ENABLE_OUTPUT)) { - dmabuf->enable |= DAC_RUNNING; - // Interrupt enable, LVI enable, DMA enable - I810_IOWRITEB(0x10 | 0x04 | 0x01, state->card, PO_CR); - } -} -static void start_dac(struct i810_state *state) -{ - struct i810_card *card = state->card; - unsigned long flags; - - spin_lock_irqsave(&card->lock, flags); - __start_dac(state); - spin_unlock_irqrestore(&card->lock, flags); -} - -#define DMABUF_DEFAULTORDER (16-PAGE_SHIFT) -#define DMABUF_MINORDER 1 - -/* allocate DMA buffer, playback and recording buffer should be allocated separately */ -static int alloc_dmabuf(struct i810_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - void *rawbuf= NULL; - int order, size; - struct page *page, *pend; - - /* If we don't have any oss frag params, then use our default ones */ - if(dmabuf->ossmaxfrags == 0) - dmabuf->ossmaxfrags = 4; - if(dmabuf->ossfragsize == 0) - dmabuf->ossfragsize = (PAGE_SIZE<<DMABUF_DEFAULTORDER)/dmabuf->ossmaxfrags; - size = dmabuf->ossfragsize * dmabuf->ossmaxfrags; - - if(dmabuf->rawbuf && (PAGE_SIZE << dmabuf->buforder) == size) - return 0; - /* alloc enough to satisfy the oss params */ - for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) { - if ( (PAGE_SIZE<<order) > size ) - continue; - if ((rawbuf = pci_alloc_consistent(state->card->pci_dev, - PAGE_SIZE << order, - &dmabuf->dma_handle))) - break; - } - if (!rawbuf) - return -ENOMEM; - - -#ifdef DEBUG - printk("i810_audio: allocated %ld (order = %d) bytes at %p\n", - PAGE_SIZE << order, order, rawbuf); -#endif - - dmabuf->ready = dmabuf->mapped = 0; - dmabuf->rawbuf = rawbuf; - dmabuf->buforder = order; - - /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */ - pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1); - for (page = virt_to_page(rawbuf); page <= pend; page++) - SetPageReserved(page); - - return 0; -} - -/* free DMA buffer */ -static void dealloc_dmabuf(struct i810_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - struct page *page, *pend; - - if (dmabuf->rawbuf) { - /* undo marking the pages as reserved */ - pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1); - for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++) - ClearPageReserved(page); - pci_free_consistent(state->card->pci_dev, PAGE_SIZE << dmabuf->buforder, - dmabuf->rawbuf, dmabuf->dma_handle); - } - dmabuf->rawbuf = NULL; - dmabuf->mapped = dmabuf->ready = 0; -} - -static int prog_dmabuf(struct i810_state *state, unsigned rec) -{ - struct dmabuf *dmabuf = &state->dmabuf; - struct i810_channel *c; - struct sg_item *sg; - unsigned long flags; - int ret; - unsigned fragint; - int i; - - spin_lock_irqsave(&state->card->lock, flags); - if(dmabuf->enable & DAC_RUNNING) - __stop_dac(state); - if(dmabuf->enable & ADC_RUNNING) - __stop_adc(state); - dmabuf->total_bytes = 0; - dmabuf->count = dmabuf->error = 0; - dmabuf->swptr = dmabuf->hwptr = 0; - spin_unlock_irqrestore(&state->card->lock, flags); - - /* allocate DMA buffer, let alloc_dmabuf determine if we are already - * allocated well enough or if we should replace the current buffer - * (assuming one is already allocated, if it isn't, then allocate it). - */ - if ((ret = alloc_dmabuf(state))) - return ret; - - /* FIXME: figure out all this OSS fragment stuff */ - /* I did, it now does what it should according to the OSS API. DL */ - /* We may not have realloced our dmabuf, but the fragment size to - * fragment number ratio may have changed, so go ahead and reprogram - * things - */ - dmabuf->dmasize = PAGE_SIZE << dmabuf->buforder; - dmabuf->numfrag = SG_LEN; - dmabuf->fragsize = dmabuf->dmasize/dmabuf->numfrag; - dmabuf->fragsamples = dmabuf->fragsize >> 1; - dmabuf->fragshift = ffs(dmabuf->fragsize) - 1; - dmabuf->userfragsize = dmabuf->ossfragsize; - dmabuf->userfrags = dmabuf->dmasize/dmabuf->ossfragsize; - - memset(dmabuf->rawbuf, 0, dmabuf->dmasize); - - if(dmabuf->ossmaxfrags == 4) { - fragint = 8; - } else if (dmabuf->ossmaxfrags == 8) { - fragint = 4; - } else if (dmabuf->ossmaxfrags == 16) { - fragint = 2; - } else { - fragint = 1; - } - /* - * Now set up the ring - */ - if(dmabuf->read_channel) - c = dmabuf->read_channel; - else - c = dmabuf->write_channel; - while(c != NULL) { - sg=&c->sg[0]; - /* - * Load up 32 sg entries and take an interrupt at half - * way (we might want more interrupts later..) - */ - - for(i=0;i<dmabuf->numfrag;i++) - { - sg->busaddr=(u32)dmabuf->dma_handle+dmabuf->fragsize*i; - // the card will always be doing 16bit stereo - sg->control=dmabuf->fragsamples; - if(state->card->pci_id == PCI_DEVICE_ID_SI_7012) - sg->control <<= 1; - sg->control|=CON_BUFPAD; - // set us up to get IOC interrupts as often as needed to - // satisfy numfrag requirements, no more - if( ((i+1) % fragint) == 0) { - sg->control|=CON_IOC; - } - sg++; - } - spin_lock_irqsave(&state->card->lock, flags); - I810_IOWRITEB(2, state->card, c->port+OFF_CR); /* reset DMA machine */ - while( I810_IOREADB(state->card, c->port+OFF_CR) & 0x02 ) ; - I810_IOWRITEL((u32)state->card->chandma + - c->num*sizeof(struct i810_channel), - state->card, c->port+OFF_BDBAR); - CIV_TO_LVI(state->card, c->port, 0); - - spin_unlock_irqrestore(&state->card->lock, flags); - - if(c != dmabuf->write_channel) - c = dmabuf->write_channel; - else - c = NULL; - } - - /* set the ready flag for the dma buffer */ - dmabuf->ready = 1; - -#ifdef DEBUG - printk("i810_audio: prog_dmabuf, sample rate = %d, format = %d,\n\tnumfrag = %d, " - "fragsize = %d dmasize = %d\n", - dmabuf->rate, dmabuf->fmt, dmabuf->numfrag, - dmabuf->fragsize, dmabuf->dmasize); -#endif - - return 0; -} - -static void __i810_update_lvi(struct i810_state *state, int rec) -{ - struct dmabuf *dmabuf = &state->dmabuf; - int x, port; - int trigger; - int count, fragsize; - void (*start)(struct i810_state *); - - count = dmabuf->count; - if (rec) { - port = dmabuf->read_channel->port; - trigger = PCM_ENABLE_INPUT; - start = __start_adc; - count = dmabuf->dmasize - count; - } else { - port = dmabuf->write_channel->port; - trigger = PCM_ENABLE_OUTPUT; - start = __start_dac; - } - - /* Do not process partial fragments. */ - fragsize = dmabuf->fragsize; - if (count < fragsize) - return; - - /* if we are currently stopped, then our CIV is actually set to our - * *last* sg segment and we are ready to wrap to the next. However, - * if we set our LVI to the last sg segment, then it won't wrap to - * the next sg segment, it won't even get a start. So, instead, when - * we are stopped, we set both the LVI value and also we increment - * the CIV value to the next sg segment to be played so that when - * we call start, things will operate properly. Since the CIV can't - * be written to directly for this purpose, we set the LVI to CIV + 1 - * temporarily. Once the engine has started we set the LVI to its - * final value. - */ - if (!dmabuf->enable && dmabuf->ready) { - if (!(dmabuf->trigger & trigger)) - return; - - CIV_TO_LVI(state->card, port, 1); - - start(state); - while (!(I810_IOREADB(state->card, port + OFF_CR) & ((1<<4) | (1<<2)))) - ; - } - - /* MASKP2(swptr, fragsize) - 1 is the tail of our transfer */ - x = MODULOP2(MASKP2(dmabuf->swptr, fragsize) - 1, dmabuf->dmasize); - x >>= dmabuf->fragshift; - I810_IOWRITEB(x, state->card, port + OFF_LVI); -} - -static void i810_update_lvi(struct i810_state *state, int rec) -{ - struct dmabuf *dmabuf = &state->dmabuf; - unsigned long flags; - - if(!dmabuf->ready) - return; - spin_lock_irqsave(&state->card->lock, flags); - __i810_update_lvi(state, rec); - spin_unlock_irqrestore(&state->card->lock, flags); -} - -/* update buffer manangement pointers, especially, dmabuf->count and dmabuf->hwptr */ -static void i810_update_ptr(struct i810_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - unsigned hwptr; - unsigned fragmask, dmamask; - int diff; - - fragmask = MASKP2(~0, dmabuf->fragsize); - dmamask = MODULOP2(~0, dmabuf->dmasize); - - /* error handling and process wake up for ADC */ - if (dmabuf->enable == ADC_RUNNING) { - /* update hardware pointer */ - hwptr = i810_get_dma_addr(state, 1) & fragmask; - diff = (hwptr - dmabuf->hwptr) & dmamask; -#if defined(DEBUG_INTERRUPTS) || defined(DEBUG_MMAP) - printk("ADC HWP %d,%d,%d\n", hwptr, dmabuf->hwptr, diff); -#endif - dmabuf->hwptr = hwptr; - dmabuf->total_bytes += diff; - dmabuf->count += diff; - if (dmabuf->count > dmabuf->dmasize) { - /* buffer underrun or buffer overrun */ - /* this is normal for the end of a read */ - /* only give an error if we went past the */ - /* last valid sg entry */ - if (GET_CIV(state->card, PI_BASE) != - GET_LVI(state->card, PI_BASE)) { - printk(KERN_WARNING "i810_audio: DMA overrun on read\n"); - dmabuf->error++; - } - } - if (diff) - wake_up(&dmabuf->wait); - } - /* error handling and process wake up for DAC */ - if (dmabuf->enable == DAC_RUNNING) { - /* update hardware pointer */ - hwptr = i810_get_dma_addr(state, 0) & fragmask; - diff = (hwptr - dmabuf->hwptr) & dmamask; -#if defined(DEBUG_INTERRUPTS) || defined(DEBUG_MMAP) - printk("DAC HWP %d,%d,%d\n", hwptr, dmabuf->hwptr, diff); -#endif - dmabuf->hwptr = hwptr; - dmabuf->total_bytes += diff; - dmabuf->count -= diff; - if (dmabuf->count < 0) { - /* buffer underrun or buffer overrun */ - /* this is normal for the end of a write */ - /* only give an error if we went past the */ - /* last valid sg entry */ - if (GET_CIV(state->card, PO_BASE) != - GET_LVI(state->card, PO_BASE)) { - printk(KERN_WARNING "i810_audio: DMA overrun on write\n"); - printk("i810_audio: CIV %d, LVI %d, hwptr %x, " - "count %d\n", - GET_CIV(state->card, PO_BASE), - GET_LVI(state->card, PO_BASE), - dmabuf->hwptr, dmabuf->count); - dmabuf->error++; - } - } - if (diff) - wake_up(&dmabuf->wait); - } -} - -static inline int i810_get_free_write_space(struct i810_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - int free; - - i810_update_ptr(state); - // catch underruns during playback - if (dmabuf->count < 0) { - dmabuf->count = 0; - dmabuf->swptr = dmabuf->hwptr; - } - free = dmabuf->dmasize - dmabuf->count; - if(free < 0) - return(0); - return(free); -} - -static inline int i810_get_available_read_data(struct i810_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - int avail; - - i810_update_ptr(state); - // catch overruns during record - if (dmabuf->count > dmabuf->dmasize) { - dmabuf->count = dmabuf->dmasize; - dmabuf->swptr = dmabuf->hwptr; - } - avail = dmabuf->count; - if(avail < 0) - return(0); - return(avail); -} - -static inline void fill_partial_frag(struct dmabuf *dmabuf) -{ - unsigned fragsize; - unsigned swptr, len; - - fragsize = dmabuf->fragsize; - swptr = dmabuf->swptr; - len = fragsize - MODULOP2(dmabuf->swptr, fragsize); - if (len == fragsize) - return; - - memset(dmabuf->rawbuf + swptr, '\0', len); - dmabuf->swptr = MODULOP2(swptr + len, dmabuf->dmasize); - dmabuf->count += len; -} - -static int drain_dac(struct i810_state *state, int signals_allowed) -{ - DECLARE_WAITQUEUE(wait, current); - struct dmabuf *dmabuf = &state->dmabuf; - unsigned long flags; - unsigned long tmo; - int count; - - if (!dmabuf->ready) - return 0; - if(dmabuf->mapped) { - stop_dac(state); - return 0; - } - - spin_lock_irqsave(&state->card->lock, flags); - - fill_partial_frag(dmabuf); - - /* - * This will make sure that our LVI is correct, that our - * pointer is updated, and that the DAC is running. We - * have to force the setting of dmabuf->trigger to avoid - * any possible deadlocks. - */ - dmabuf->trigger = PCM_ENABLE_OUTPUT; - __i810_update_lvi(state, 0); - - spin_unlock_irqrestore(&state->card->lock, flags); - - add_wait_queue(&dmabuf->wait, &wait); - for (;;) { - - spin_lock_irqsave(&state->card->lock, flags); - i810_update_ptr(state); - count = dmabuf->count; - - /* It seems that we have to set the current state to - * TASK_INTERRUPTIBLE every time to make the process - * really go to sleep. This also has to be *after* the - * update_ptr() call because update_ptr is likely to - * do a wake_up() which will unset this before we ever - * try to sleep, resuling in a tight loop in this code - * instead of actually sleeping and waiting for an - * interrupt to wake us up! - */ - __set_current_state(signals_allowed ? - TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE); - spin_unlock_irqrestore(&state->card->lock, flags); - - if (count <= 0) - break; - - if (signal_pending(current) && signals_allowed) { - break; - } - - /* - * set the timeout to significantly longer than it *should* - * take for the DAC to drain the DMA buffer - */ - tmo = (count * HZ) / (dmabuf->rate); - if (!schedule_timeout(tmo >= 2 ? tmo : 2)){ - printk(KERN_ERR "i810_audio: drain_dac, dma timeout?\n"); - count = 0; - break; - } - } - set_current_state(TASK_RUNNING); - remove_wait_queue(&dmabuf->wait, &wait); - if(count > 0 && signal_pending(current) && signals_allowed) - return -ERESTARTSYS; - stop_dac(state); - return 0; -} - -static void i810_channel_interrupt(struct i810_card *card) -{ - int i, count; - -#ifdef DEBUG_INTERRUPTS - printk("CHANNEL "); -#endif - for(i=0;i<NR_HW_CH;i++) - { - struct i810_state *state = card->states[i]; - struct i810_channel *c; - struct dmabuf *dmabuf; - unsigned long port; - u16 status; - - if(!state) - continue; - if(!state->dmabuf.ready) - continue; - dmabuf = &state->dmabuf; - if(dmabuf->enable & DAC_RUNNING) { - c=dmabuf->write_channel; - } else if(dmabuf->enable & ADC_RUNNING) { - c=dmabuf->read_channel; - } else /* This can occur going from R/W to close */ - continue; - - port = c->port; - - if(card->pci_id == PCI_DEVICE_ID_SI_7012) - status = I810_IOREADW(card, port + OFF_PICB); - else - status = I810_IOREADW(card, port + OFF_SR); - -#ifdef DEBUG_INTERRUPTS - printk("NUM %d PORT %X IRQ ( ST%d ", c->num, c->port, status); -#endif - if(status & DMA_INT_COMPLETE) - { - /* only wake_up() waiters if this interrupt signals - * us being beyond a userfragsize of data open or - * available, and i810_update_ptr() does that for - * us - */ - i810_update_ptr(state); -#ifdef DEBUG_INTERRUPTS - printk("COMP %d ", dmabuf->hwptr / - dmabuf->fragsize); -#endif - } - if(status & (DMA_INT_LVI | DMA_INT_DCH)) - { - /* wake_up() unconditionally on LVI and DCH */ - i810_update_ptr(state); - wake_up(&dmabuf->wait); -#ifdef DEBUG_INTERRUPTS - if(status & DMA_INT_LVI) - printk("LVI "); - if(status & DMA_INT_DCH) - printk("DCH -"); -#endif - count = dmabuf->count; - if(dmabuf->enable & ADC_RUNNING) - count = dmabuf->dmasize - count; - if (count >= (int)dmabuf->fragsize) { - I810_IOWRITEB(I810_IOREADB(card, port+OFF_CR) | 1, card, port+OFF_CR); -#ifdef DEBUG_INTERRUPTS - printk(" CONTINUE "); -#endif - } else { - if (dmabuf->enable & DAC_RUNNING) - __stop_dac(state); - if (dmabuf->enable & ADC_RUNNING) - __stop_adc(state); - dmabuf->enable = 0; -#ifdef DEBUG_INTERRUPTS - printk(" STOP "); -#endif - } - } - if(card->pci_id == PCI_DEVICE_ID_SI_7012) - I810_IOWRITEW(status & DMA_INT_MASK, card, port + OFF_PICB); - else - I810_IOWRITEW(status & DMA_INT_MASK, card, port + OFF_SR); - } -#ifdef DEBUG_INTERRUPTS - printk(")\n"); -#endif -} - -static irqreturn_t i810_interrupt(int irq, void *dev_id) -{ - struct i810_card *card = dev_id; - u32 status; - - spin_lock(&card->lock); - - status = I810_IOREADL(card, GLOB_STA); - - if(!(status & INT_MASK)) - { - spin_unlock(&card->lock); - return IRQ_NONE; /* not for us */ - } - - if(status & (INT_PO|INT_PI|INT_MC)) - i810_channel_interrupt(card); - - /* clear 'em */ - I810_IOWRITEL(status & INT_MASK, card, GLOB_STA); - spin_unlock(&card->lock); - return IRQ_HANDLED; -} - -/* in this loop, dmabuf.count signifies the amount of data that is - waiting to be copied to the user's buffer. It is filled by the dma - machine and drained by this loop. */ - -static ssize_t i810_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) -{ - struct i810_state *state = (struct i810_state *)file->private_data; - struct i810_card *card=state ? state->card : NULL; - struct dmabuf *dmabuf = &state->dmabuf; - ssize_t ret; - unsigned long flags; - unsigned int swptr; - int cnt; - int pending; - DECLARE_WAITQUEUE(waita, current); - -#ifdef DEBUG2 - printk("i810_audio: i810_read called, count = %d\n", count); -#endif - - if (dmabuf->mapped) - return -ENXIO; - if (dmabuf->enable & DAC_RUNNING) - return -ENODEV; - if (!dmabuf->read_channel) { - dmabuf->ready = 0; - dmabuf->read_channel = card->alloc_rec_pcm_channel(card); - if (!dmabuf->read_channel) { - return -EBUSY; - } - } - if (!dmabuf->ready && (ret = prog_dmabuf(state, 1))) - return ret; - if (!access_ok(VERIFY_WRITE, buffer, count)) - return -EFAULT; - ret = 0; - - pending = 0; - - add_wait_queue(&dmabuf->wait, &waita); - while (count > 0) { - set_current_state(TASK_INTERRUPTIBLE); - spin_lock_irqsave(&card->lock, flags); - if (PM_SUSPENDED(card)) { - spin_unlock_irqrestore(&card->lock, flags); - schedule(); - if (signal_pending(current)) { - if (!ret) ret = -EAGAIN; - break; - } - continue; - } - cnt = i810_get_available_read_data(state); - swptr = dmabuf->swptr; - // this is to make the copy_to_user simpler below - if(cnt > (dmabuf->dmasize - swptr)) - cnt = dmabuf->dmasize - swptr; - spin_unlock_irqrestore(&card->lock, flags); - - if (cnt > count) - cnt = count; - if (cnt <= 0) { - unsigned long tmo; - /* - * Don't let us deadlock. The ADC won't start if - * dmabuf->trigger isn't set. A call to SETTRIGGER - * could have turned it off after we set it to on - * previously. - */ - dmabuf->trigger = PCM_ENABLE_INPUT; - /* - * This does three things. Updates LVI to be correct, - * makes sure the ADC is running, and updates the - * hwptr. - */ - i810_update_lvi(state,1); - if (file->f_flags & O_NONBLOCK) { - if (!ret) ret = -EAGAIN; - goto done; - } - /* Set the timeout to how long it would take to fill - * two of our buffers. If we haven't been woke up - * by then, then we know something is wrong. - */ - tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4); - /* There are two situations when sleep_on_timeout returns, one is when - the interrupt is serviced correctly and the process is waked up by - ISR ON TIME. Another is when timeout is expired, which means that - either interrupt is NOT serviced correctly (pending interrupt) or it - is TOO LATE for the process to be scheduled to run (scheduler latency) - which results in a (potential) buffer overrun. And worse, there is - NOTHING we can do to prevent it. */ - if (!schedule_timeout(tmo >= 2 ? tmo : 2)) { -#ifdef DEBUG - printk(KERN_ERR "i810_audio: recording schedule timeout, " - "dmasz %u fragsz %u count %i hwptr %u swptr %u\n", - dmabuf->dmasize, dmabuf->fragsize, dmabuf->count, - dmabuf->hwptr, dmabuf->swptr); -#endif - /* a buffer overrun, we delay the recovery until next time the - while loop begin and we REALLY have space to record */ - } - if (signal_pending(current)) { - ret = ret ? ret : -ERESTARTSYS; - goto done; - } - continue; - } - - if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) { - if (!ret) ret = -EFAULT; - goto done; - } - - swptr = MODULOP2(swptr + cnt, dmabuf->dmasize); - - spin_lock_irqsave(&card->lock, flags); - - if (PM_SUSPENDED(card)) { - spin_unlock_irqrestore(&card->lock, flags); - continue; - } - dmabuf->swptr = swptr; - pending = dmabuf->count -= cnt; - spin_unlock_irqrestore(&card->lock, flags); - - count -= cnt; - buffer += cnt; - ret += cnt; - } - done: - pending = dmabuf->dmasize - pending; - if (dmabuf->enable || pending >= dmabuf->userfragsize) - i810_update_lvi(state, 1); - set_current_state(TASK_RUNNING); - remove_wait_queue(&dmabuf->wait, &waita); - - return ret; -} - -/* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to - the soundcard. it is drained by the dma machine and filled by this loop. */ -static ssize_t i810_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) -{ - struct i810_state *state = (struct i810_state *)file->private_data; - struct i810_card *card=state ? state->card : NULL; - struct dmabuf *dmabuf = &state->dmabuf; - ssize_t ret; - unsigned long flags; - unsigned int swptr = 0; - int pending; - int cnt; - DECLARE_WAITQUEUE(waita, current); - -#ifdef DEBUG2 - printk("i810_audio: i810_write called, count = %d\n", count); -#endif - - if (dmabuf->mapped) - return -ENXIO; - if (dmabuf->enable & ADC_RUNNING) - return -ENODEV; - if (!dmabuf->write_channel) { - dmabuf->ready = 0; - dmabuf->write_channel = card->alloc_pcm_channel(card); - if(!dmabuf->write_channel) - return -EBUSY; - } - if (!dmabuf->ready && (ret = prog_dmabuf(state, 0))) - return ret; - if (!access_ok(VERIFY_READ, buffer, count)) - return -EFAULT; - ret = 0; - - pending = 0; - - add_wait_queue(&dmabuf->wait, &waita); - while (count > 0) { - set_current_state(TASK_INTERRUPTIBLE); - spin_lock_irqsave(&state->card->lock, flags); - if (PM_SUSPENDED(card)) { - spin_unlock_irqrestore(&card->lock, flags); - schedule(); - if (signal_pending(current)) { - if (!ret) ret = -EAGAIN; - break; - } - continue; - } - - cnt = i810_get_free_write_space(state); - swptr = dmabuf->swptr; - /* Bound the maximum size to how much we can copy to the - * dma buffer before we hit the end. If we have more to - * copy then it will get done in a second pass of this - * loop starting from the beginning of the buffer. - */ - if(cnt > (dmabuf->dmasize - swptr)) - cnt = dmabuf->dmasize - swptr; - spin_unlock_irqrestore(&state->card->lock, flags); - -#ifdef DEBUG2 - printk(KERN_INFO "i810_audio: i810_write: %d bytes available space\n", cnt); -#endif - if (cnt > count) - cnt = count; - if (cnt <= 0) { - unsigned long tmo; - // There is data waiting to be played - /* - * Force the trigger setting since we would - * deadlock with it set any other way - */ - dmabuf->trigger = PCM_ENABLE_OUTPUT; - i810_update_lvi(state,0); - if (file->f_flags & O_NONBLOCK) { - if (!ret) ret = -EAGAIN; - goto ret; - } - /* Not strictly correct but works */ - tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4); - /* There are two situations when sleep_on_timeout returns, one is when - the interrupt is serviced correctly and the process is waked up by - ISR ON TIME. Another is when timeout is expired, which means that - either interrupt is NOT serviced correctly (pending interrupt) or it - is TOO LATE for the process to be scheduled to run (scheduler latency) - which results in a (potential) buffer underrun. And worse, there is - NOTHING we can do to prevent it. */ - if (!schedule_timeout(tmo >= 2 ? tmo : 2)) { -#ifdef DEBUG - printk(KERN_ERR "i810_audio: playback schedule timeout, " - "dmasz %u fragsz %u count %i hwptr %u swptr %u\n", - dmabuf->dmasize, dmabuf->fragsize, dmabuf->count, - dmabuf->hwptr, dmabuf->swptr); -#endif - /* a buffer underrun, we delay the recovery until next time the - while loop begin and we REALLY have data to play */ - //return ret; - } - if (signal_pending(current)) { - if (!ret) ret = -ERESTARTSYS; - goto ret; - } - continue; - } - if (copy_from_user(dmabuf->rawbuf+swptr,buffer,cnt)) { - if (!ret) ret = -EFAULT; - goto ret; - } - - swptr = MODULOP2(swptr + cnt, dmabuf->dmasize); - - spin_lock_irqsave(&state->card->lock, flags); - if (PM_SUSPENDED(card)) { - spin_unlock_irqrestore(&card->lock, flags); - continue; - } - - dmabuf->swptr = swptr; - pending = dmabuf->count += cnt; - - count -= cnt; - buffer += cnt; - ret += cnt; - spin_unlock_irqrestore(&state->card->lock, flags); - } -ret: - if (dmabuf->enable || pending >= dmabuf->userfragsize) - i810_update_lvi(state, 0); - set_current_state(TASK_RUNNING); - remove_wait_queue(&dmabuf->wait, &waita); - - return ret; -} - -/* No kernel lock - we have our own spinlock */ -static unsigned int i810_poll(struct file *file, struct poll_table_struct *wait) -{ - struct i810_state *state = (struct i810_state *)file->private_data; - struct dmabuf *dmabuf = &state->dmabuf; - unsigned long flags; - unsigned int mask = 0; - - if(!dmabuf->ready) - return 0; - poll_wait(file, &dmabuf->wait, wait); - spin_lock_irqsave(&state->card->lock, flags); - if (dmabuf->enable & ADC_RUNNING || - dmabuf->trigger & PCM_ENABLE_INPUT) { - if (i810_get_available_read_data(state) >= - (signed)dmabuf->userfragsize) - mask |= POLLIN | POLLRDNORM; - } - if (dmabuf->enable & DAC_RUNNING || - dmabuf->trigger & PCM_ENABLE_OUTPUT) { - if (i810_get_free_write_space(state) >= - (signed)dmabuf->userfragsize) - mask |= POLLOUT | POLLWRNORM; - } - spin_unlock_irqrestore(&state->card->lock, flags); - return mask; -} - -static int i810_mmap(struct file *file, struct vm_area_struct *vma) -{ - struct i810_state *state = (struct i810_state *)file->private_data; - struct dmabuf *dmabuf = &state->dmabuf; - int ret = -EINVAL; - unsigned long size; - - lock_kernel(); - if (vma->vm_flags & VM_WRITE) { - if (!dmabuf->write_channel && - (dmabuf->write_channel = - state->card->alloc_pcm_channel(state->card)) == NULL) { - ret = -EBUSY; - goto out; - } - } - if (vma->vm_flags & VM_READ) { - if (!dmabuf->read_channel && - (dmabuf->read_channel = - state->card->alloc_rec_pcm_channel(state->card)) == NULL) { - ret = -EBUSY; - goto out; - } - } - if ((ret = prog_dmabuf(state, 0)) != 0) - goto out; - - ret = -EINVAL; - if (vma->vm_pgoff != 0) - goto out; - size = vma->vm_end - vma->vm_start; - if (size > (PAGE_SIZE << dmabuf->buforder)) - goto out; - ret = -EAGAIN; - if (remap_pfn_range(vma, vma->vm_start, - virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT, - size, vma->vm_page_prot)) - goto out; - dmabuf->mapped = 1; - dmabuf->trigger = 0; - ret = 0; -#ifdef DEBUG_MMAP - printk("i810_audio: mmap'ed %ld bytes of data space\n", size); -#endif -out: - unlock_kernel(); - return ret; -} - -static int i810_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) -{ - struct i810_state *state = (struct i810_state *)file->private_data; - struct i810_channel *c = NULL; - struct dmabuf *dmabuf = &state->dmabuf; - unsigned long flags; - audio_buf_info abinfo; - count_info cinfo; - unsigned int i_glob_cnt; - int val = 0, ret; - struct ac97_codec *codec = state->card->ac97_codec[0]; - void __user *argp = (void __user *)arg; - int __user *p = argp; - -#ifdef DEBUG - printk("i810_audio: i810_ioctl, arg=0x%x, cmd=", arg ? *p : 0); -#endif - - switch (cmd) - { - case OSS_GETVERSION: -#ifdef DEBUG - printk("OSS_GETVERSION\n"); -#endif - return put_user(SOUND_VERSION, p); - - case SNDCTL_DSP_RESET: -#ifdef DEBUG - printk("SNDCTL_DSP_RESET\n"); -#endif - spin_lock_irqsave(&state->card->lock, flags); - if (dmabuf->enable == DAC_RUNNING) { - c = dmabuf->write_channel; - __stop_dac(state); - } - if (dmabuf->enable == ADC_RUNNING) { - c = dmabuf->read_channel; - __stop_adc(state); - } - if (c != NULL) { - I810_IOWRITEB(2, state->card, c->port+OFF_CR); /* reset DMA machine */ - while ( I810_IOREADB(state->card, c->port+OFF_CR) & 2 ) - cpu_relax(); - I810_IOWRITEL((u32)state->card->chandma + - c->num*sizeof(struct i810_channel), - state->card, c->port+OFF_BDBAR); - CIV_TO_LVI(state->card, c->port, 0); - } - - spin_unlock_irqrestore(&state->card->lock, flags); - synchronize_irq(state->card->pci_dev->irq); - dmabuf->ready = 0; - dmabuf->swptr = dmabuf->hwptr = 0; - dmabuf->count = dmabuf->total_bytes = 0; - return 0; - - case SNDCTL_DSP_SYNC: -#ifdef DEBUG - printk("SNDCTL_DSP_SYNC\n"); -#endif - if (dmabuf->enable != DAC_RUNNING || file->f_flags & O_NONBLOCK) - return 0; - if((val = drain_dac(state, 1))) - return val; - dmabuf->total_bytes = 0; - return 0; - - case SNDCTL_DSP_SPEED: /* set smaple rate */ -#ifdef DEBUG - printk("SNDCTL_DSP_SPEED\n"); -#endif - if (get_user(val, p)) - return -EFAULT; - if (val >= 0) { - if (file->f_mode & FMODE_WRITE) { - if ( (state->card->ac97_status & SPDIF_ON) ) { /* S/PDIF Enabled */ - /* AD1886 only supports 48000, need to check that */ - if ( i810_valid_spdif_rate ( codec, val ) ) { - /* Set DAC rate */ - i810_set_spdif_output ( state, -1, 0 ); - stop_dac(state); - dmabuf->ready = 0; - spin_lock_irqsave(&state->card->lock, flags); - i810_set_dac_rate(state, val); - spin_unlock_irqrestore(&state->card->lock, flags); - /* Set S/PDIF transmitter rate. */ - i810_set_spdif_output ( state, AC97_EA_SPSA_3_4, val ); - if ( ! (state->card->ac97_status & SPDIF_ON) ) { - val = dmabuf->rate; - } - } else { /* Not a valid rate for S/PDIF, ignore it */ - val = dmabuf->rate; - } - } else { - stop_dac(state); - dmabuf->ready = 0; - spin_lock_irqsave(&state->card->lock, flags); - i810_set_dac_rate(state, val); - spin_unlock_irqrestore(&state->card->lock, flags); - } - } - if (file->f_mode & FMODE_READ) { - stop_adc(state); - dmabuf->ready = 0; - spin_lock_irqsave(&state->card->lock, flags); - i810_set_adc_rate(state, val); - spin_unlock_irqrestore(&state->card->lock, flags); - } - } - return put_user(dmabuf->rate, p); - - case SNDCTL_DSP_STEREO: /* set stereo or mono channel */ -#ifdef DEBUG - printk("SNDCTL_DSP_STEREO\n"); -#endif - if (dmabuf->enable & DAC_RUNNING) { - stop_dac(state); - } - if (dmabuf->enable & ADC_RUNNING) { - stop_adc(state); - } - return put_user(1, p); - - case SNDCTL_DSP_GETBLKSIZE: - if (file->f_mode & FMODE_WRITE) { - if (!dmabuf->ready && (val = prog_dmabuf(state, 0))) - return val; - } - if (file->f_mode & FMODE_READ) { - if (!dmabuf->ready && (val = prog_dmabuf(state, 1))) - return val; - } -#ifdef DEBUG - printk("SNDCTL_DSP_GETBLKSIZE %d\n", dmabuf->userfragsize); -#endif - return put_user(dmabuf->userfragsize, p); - - case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format*/ -#ifdef DEBUG - printk("SNDCTL_DSP_GETFMTS\n"); -#endif - return put_user(AFMT_S16_LE, p); - - case SNDCTL_DSP_SETFMT: /* Select sample format */ -#ifdef DEBUG - printk("SNDCTL_DSP_SETFMT\n"); -#endif - return put_user(AFMT_S16_LE, p); - - case SNDCTL_DSP_CHANNELS: -#ifdef DEBUG - printk("SNDCTL_DSP_CHANNELS\n"); -#endif - if (get_user(val, p)) - return -EFAULT; - - if (val > 0) { - if (dmabuf->enable & DAC_RUNNING) { - stop_dac(state); - } - if (dmabuf->enable & ADC_RUNNING) { - stop_adc(state); - } - } else { - return put_user(state->card->channels, p); - } - - /* ICH and ICH0 only support 2 channels */ - if ( state->card->pci_id == PCI_DEVICE_ID_INTEL_82801AA_5 - || state->card->pci_id == PCI_DEVICE_ID_INTEL_82801AB_5) - return put_user(2, p); - - /* Multi-channel support was added with ICH2. Bits in */ - /* Global Status and Global Control register are now */ - /* used to indicate this. */ - - i_glob_cnt = I810_IOREADL(state->card, GLOB_CNT); - - /* Current # of channels enabled */ - if ( i_glob_cnt & 0x0100000 ) - ret = 4; - else if ( i_glob_cnt & 0x0200000 ) - ret = 6; - else - ret = 2; - - switch ( val ) { - case 2: /* 2 channels is always supported */ - I810_IOWRITEL(i_glob_cnt & 0xffcfffff, - state->card, GLOB_CNT); - /* Do we need to change mixer settings???? */ - break; - case 4: /* Supported on some chipsets, better check first */ - if ( state->card->channels >= 4 ) { - I810_IOWRITEL((i_glob_cnt & 0xffcfffff) | 0x100000, - state->card, GLOB_CNT); - /* Do we need to change mixer settings??? */ - } else { - val = ret; - } - break; - case 6: /* Supported on some chipsets, better check first */ - if ( state->card->channels >= 6 ) { - I810_IOWRITEL((i_glob_cnt & 0xffcfffff) | 0x200000, - state->card, GLOB_CNT); - /* Do we need to change mixer settings??? */ - } else { - val = ret; - } - break; - default: /* nothing else is ever supported by the chipset */ - val = ret; - break; - } - - return put_user(val, p); - - case SNDCTL_DSP_POST: /* the user has sent all data and is notifying us */ - /* we update the swptr to the end of the last sg segment then return */ -#ifdef DEBUG - printk("SNDCTL_DSP_POST\n"); -#endif - if(!dmabuf->ready || (dmabuf->enable != DAC_RUNNING)) - return 0; - if((dmabuf->swptr % dmabuf->fragsize) != 0) { - val = dmabuf->fragsize - (dmabuf->swptr % dmabuf->fragsize); - dmabuf->swptr += val; - dmabuf->count += val; - } - return 0; - - case SNDCTL_DSP_SUBDIVIDE: - if (dmabuf->subdivision) - return -EINVAL; - if (get_user(val, p)) - return -EFAULT; - if (val != 1 && val != 2 && val != 4) - return -EINVAL; -#ifdef DEBUG - printk("SNDCTL_DSP_SUBDIVIDE %d\n", val); -#endif - dmabuf->subdivision = val; - dmabuf->ready = 0; - return 0; - - case SNDCTL_DSP_SETFRAGMENT: - if (get_user(val, p)) - return -EFAULT; - - dmabuf->ossfragsize = 1<<(val & 0xffff); - dmabuf->ossmaxfrags = (val >> 16) & 0xffff; - if (!dmabuf->ossfragsize || !dmabuf->ossmaxfrags) - return -EINVAL; - /* - * Bound the frag size into our allowed range of 256 - 4096 - */ - if (dmabuf->ossfragsize < 256) - dmabuf->ossfragsize = 256; - else if (dmabuf->ossfragsize > 4096) - dmabuf->ossfragsize = 4096; - /* - * The numfrags could be something reasonable, or it could - * be 0xffff meaning "Give me as much as possible". So, - * we check the numfrags * fragsize doesn't exceed our - * 64k buffer limit, nor is it less than our 8k minimum. - * If it fails either one of these checks, then adjust the - * number of fragments, not the size of them. It's OK if - * our number of fragments doesn't equal 32 or anything - * like our hardware based number now since we are using - * a different frag count for the hardware. Before we get - * into this though, bound the maxfrags to avoid overflow - * issues. A reasonable bound would be 64k / 256 since our - * maximum buffer size is 64k and our minimum frag size is - * 256. On the other end, our minimum buffer size is 8k and - * our maximum frag size is 4k, so the lower bound should - * be 2. - */ - - if(dmabuf->ossmaxfrags > 256) - dmabuf->ossmaxfrags = 256; - else if (dmabuf->ossmaxfrags < 2) - dmabuf->ossmaxfrags = 2; - - val = dmabuf->ossfragsize * dmabuf->ossmaxfrags; - while (val < 8192) { - val <<= 1; - dmabuf->ossmaxfrags <<= 1; - } - while (val > 65536) { - val >>= 1; - dmabuf->ossmaxfrags >>= 1; - } - dmabuf->ready = 0; -#ifdef DEBUG - printk("SNDCTL_DSP_SETFRAGMENT 0x%x, %d, %d\n", val, - dmabuf->ossfragsize, dmabuf->ossmaxfrags); -#endif - - return 0; - - case SNDCTL_DSP_GETOSPACE: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) - return val; - spin_lock_irqsave(&state->card->lock, flags); - i810_update_ptr(state); - abinfo.fragsize = dmabuf->userfragsize; - abinfo.fragstotal = dmabuf->userfrags; - if (dmabuf->mapped) - abinfo.bytes = dmabuf->dmasize; - else - abinfo.bytes = i810_get_free_write_space(state); - abinfo.fragments = abinfo.bytes / dmabuf->userfragsize; - spin_unlock_irqrestore(&state->card->lock, flags); -#if defined(DEBUG) || defined(DEBUG_MMAP) - printk("SNDCTL_DSP_GETOSPACE %d, %d, %d, %d\n", abinfo.bytes, - abinfo.fragsize, abinfo.fragments, abinfo.fragstotal); -#endif - return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETOPTR: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) - return val; - spin_lock_irqsave(&state->card->lock, flags); - val = i810_get_free_write_space(state); - cinfo.bytes = dmabuf->total_bytes; - cinfo.ptr = dmabuf->hwptr; - cinfo.blocks = val/dmabuf->userfragsize; - if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) { - dmabuf->count += val; - dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; - __i810_update_lvi(state, 0); - } - spin_unlock_irqrestore(&state->card->lock, flags); -#if defined(DEBUG) || defined(DEBUG_MMAP) - printk("SNDCTL_DSP_GETOPTR %d, %d, %d, %d\n", cinfo.bytes, - cinfo.blocks, cinfo.ptr, dmabuf->count); -#endif - return copy_to_user(argp, &cinfo, sizeof(cinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETISPACE: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - if (!dmabuf->ready && (val = prog_dmabuf(state, 1)) != 0) - return val; - spin_lock_irqsave(&state->card->lock, flags); - abinfo.bytes = i810_get_available_read_data(state); - abinfo.fragsize = dmabuf->userfragsize; - abinfo.fragstotal = dmabuf->userfrags; - abinfo.fragments = abinfo.bytes / dmabuf->userfragsize; - spin_unlock_irqrestore(&state->card->lock, flags); -#if defined(DEBUG) || defined(DEBUG_MMAP) - printk("SNDCTL_DSP_GETISPACE %d, %d, %d, %d\n", abinfo.bytes, - abinfo.fragsize, abinfo.fragments, abinfo.fragstotal); -#endif - return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETIPTR: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) - return val; - spin_lock_irqsave(&state->card->lock, flags); - val = i810_get_available_read_data(state); - cinfo.bytes = dmabuf->total_bytes; - cinfo.blocks = val/dmabuf->userfragsize; - cinfo.ptr = dmabuf->hwptr; - if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_INPUT)) { - dmabuf->count -= val; - dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; - __i810_update_lvi(state, 1); - } - spin_unlock_irqrestore(&state->card->lock, flags); -#if defined(DEBUG) || defined(DEBUG_MMAP) - printk("SNDCTL_DSP_GETIPTR %d, %d, %d, %d\n", cinfo.bytes, - cinfo.blocks, cinfo.ptr, dmabuf->count); -#endif - return copy_to_user(argp, &cinfo, sizeof(cinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_NONBLOCK: -#ifdef DEBUG - printk("SNDCTL_DSP_NONBLOCK\n"); -#endif - file->f_flags |= O_NONBLOCK; - return 0; - - case SNDCTL_DSP_GETCAPS: -#ifdef DEBUG - printk("SNDCTL_DSP_GETCAPS\n"); -#endif - return put_user(DSP_CAP_REALTIME|DSP_CAP_TRIGGER|DSP_CAP_MMAP|DSP_CAP_BIND, - p); - - case SNDCTL_DSP_GETTRIGGER: - val = 0; -#ifdef DEBUG - printk("SNDCTL_DSP_GETTRIGGER 0x%x\n", dmabuf->trigger); -#endif - return put_user(dmabuf->trigger, p); - - case SNDCTL_DSP_SETTRIGGER: - if (get_user(val, p)) - return -EFAULT; -#if defined(DEBUG) || defined(DEBUG_MMAP) - printk("SNDCTL_DSP_SETTRIGGER 0x%x\n", val); -#endif - /* silently ignore invalid PCM_ENABLE_xxx bits, - * like the other drivers do - */ - if (!(file->f_mode & FMODE_READ )) - val &= ~PCM_ENABLE_INPUT; - if (!(file->f_mode & FMODE_WRITE )) - val &= ~PCM_ENABLE_OUTPUT; - if((file->f_mode & FMODE_READ) && !(val & PCM_ENABLE_INPUT) && dmabuf->enable == ADC_RUNNING) { - stop_adc(state); - } - if((file->f_mode & FMODE_WRITE) && !(val & PCM_ENABLE_OUTPUT) && dmabuf->enable == DAC_RUNNING) { - stop_dac(state); - } - dmabuf->trigger = val; - if((val & PCM_ENABLE_OUTPUT) && !(dmabuf->enable & DAC_RUNNING)) { - if (!dmabuf->write_channel) { - dmabuf->ready = 0; - dmabuf->write_channel = state->card->alloc_pcm_channel(state->card); - if (!dmabuf->write_channel) - return -EBUSY; - } - if (!dmabuf->ready && (ret = prog_dmabuf(state, 0))) - return ret; - if (dmabuf->mapped) { - spin_lock_irqsave(&state->card->lock, flags); - i810_update_ptr(state); - dmabuf->count = 0; - dmabuf->swptr = dmabuf->hwptr; - dmabuf->count = i810_get_free_write_space(state); - dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize; - spin_unlock_irqrestore(&state->card->lock, flags); - } - i810_update_lvi(state, 0); - start_dac(state); - } - if((val & PCM_ENABLE_INPUT) && !(dmabuf->enable & ADC_RUNNING)) { - if (!dmabuf->read_channel) { - dmabuf->ready = 0; - dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card); - if (!dmabuf->read_channel) - return -EBUSY; - } - if (!dmabuf->ready && (ret = prog_dmabuf(state, 1))) - return ret; - if (dmabuf->mapped) { - spin_lock_irqsave(&state->card->lock, flags); - i810_update_ptr(state); - dmabuf->swptr = dmabuf->hwptr; - dmabuf->count = 0; - spin_unlock_irqrestore(&state->card->lock, flags); - } - i810_update_lvi(state, 1); - start_adc(state); - } - return 0; - - case SNDCTL_DSP_SETDUPLEX: -#ifdef DEBUG - printk("SNDCTL_DSP_SETDUPLEX\n"); -#endif - return -EINVAL; - - case SNDCTL_DSP_GETODELAY: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - spin_lock_irqsave(&state->card->lock, flags); - i810_update_ptr(state); - val = dmabuf->count; - spin_unlock_irqrestore(&state->card->lock, flags); -#ifdef DEBUG - printk("SNDCTL_DSP_GETODELAY %d\n", dmabuf->count); -#endif - return put_user(val, p); - - case SOUND_PCM_READ_RATE: -#ifdef DEBUG - printk("SOUND_PCM_READ_RATE %d\n", dmabuf->rate); -#endif - return put_user(dmabuf->rate, p); - - case SOUND_PCM_READ_CHANNELS: -#ifdef DEBUG - printk("SOUND_PCM_READ_CHANNELS\n"); -#endif - return put_user(2, p); - - case SOUND_PCM_READ_BITS: -#ifdef DEBUG - printk("SOUND_PCM_READ_BITS\n"); -#endif - return put_user(AFMT_S16_LE, p); - - case SNDCTL_DSP_SETSPDIF: /* Set S/PDIF Control register */ -#ifdef DEBUG - printk("SNDCTL_DSP_SETSPDIF\n"); -#endif - if (get_user(val, p)) - return -EFAULT; - - /* Check to make sure the codec supports S/PDIF transmitter */ - - if((state->card->ac97_features & 4)) { - /* mask out the transmitter speed bits so the user can't set them */ - val &= ~0x3000; - - /* Add the current transmitter speed bits to the passed value */ - ret = i810_ac97_get(codec, AC97_SPDIF_CONTROL); - val |= (ret & 0x3000); - - i810_ac97_set(codec, AC97_SPDIF_CONTROL, val); - if(i810_ac97_get(codec, AC97_SPDIF_CONTROL) != val ) { - printk(KERN_ERR "i810_audio: Unable to set S/PDIF configuration to 0x%04x.\n", val); - return -EFAULT; - } - } -#ifdef DEBUG - else - printk(KERN_WARNING "i810_audio: S/PDIF transmitter not avalible.\n"); -#endif - return put_user(val, p); - - case SNDCTL_DSP_GETSPDIF: /* Get S/PDIF Control register */ -#ifdef DEBUG - printk("SNDCTL_DSP_GETSPDIF\n"); -#endif - if (get_user(val, p)) - return -EFAULT; - - /* Check to make sure the codec supports S/PDIF transmitter */ - - if(!(state->card->ac97_features & 4)) { -#ifdef DEBUG - printk(KERN_WARNING "i810_audio: S/PDIF transmitter not avalible.\n"); -#endif - val = 0; - } else { - val = i810_ac97_get(codec, AC97_SPDIF_CONTROL); - } - //return put_user((val & 0xcfff), p); - return put_user(val, p); - - case SNDCTL_DSP_GETCHANNELMASK: -#ifdef DEBUG - printk("SNDCTL_DSP_GETCHANNELMASK\n"); -#endif - if (get_user(val, p)) - return -EFAULT; - - /* Based on AC'97 DAC support, not ICH hardware */ - val = DSP_BIND_FRONT; - if ( state->card->ac97_features & 0x0004 ) - val |= DSP_BIND_SPDIF; - - if ( state->card->ac97_features & 0x0080 ) - val |= DSP_BIND_SURR; - if ( state->card->ac97_features & 0x0140 ) - val |= DSP_BIND_CENTER_LFE; - - return put_user(val, p); - - case SNDCTL_DSP_BIND_CHANNEL: -#ifdef DEBUG - printk("SNDCTL_DSP_BIND_CHANNEL\n"); -#endif - if (get_user(val, p)) - return -EFAULT; - if ( val == DSP_BIND_QUERY ) { - val = DSP_BIND_FRONT; /* Always report this as being enabled */ - if ( state->card->ac97_status & SPDIF_ON ) - val |= DSP_BIND_SPDIF; - else { - if ( state->card->ac97_status & SURR_ON ) - val |= DSP_BIND_SURR; - if ( state->card->ac97_status & CENTER_LFE_ON ) - val |= DSP_BIND_CENTER_LFE; - } - } else { /* Not a query, set it */ - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - if ( dmabuf->enable == DAC_RUNNING ) { - stop_dac(state); - } - if ( val & DSP_BIND_SPDIF ) { /* Turn on SPDIF */ - /* Ok, this should probably define what slots - * to use. For now, we'll only set it to the - * defaults: - * - * non multichannel codec maps to slots 3&4 - * 2 channel codec maps to slots 7&8 - * 4 channel codec maps to slots 6&9 - * 6 channel codec maps to slots 10&11 - * - * there should be some way for the app to - * select the slot assignment. - */ - - i810_set_spdif_output ( state, AC97_EA_SPSA_3_4, dmabuf->rate ); - if ( !(state->card->ac97_status & SPDIF_ON) ) - val &= ~DSP_BIND_SPDIF; - } else { - int mask; - int channels; - - /* Turn off S/PDIF if it was on */ - if ( state->card->ac97_status & SPDIF_ON ) - i810_set_spdif_output ( state, -1, 0 ); - - mask = val & (DSP_BIND_FRONT | DSP_BIND_SURR | DSP_BIND_CENTER_LFE); - switch (mask) { - case DSP_BIND_FRONT: - channels = 2; - break; - case DSP_BIND_FRONT|DSP_BIND_SURR: - channels = 4; - break; - case DSP_BIND_FRONT|DSP_BIND_SURR|DSP_BIND_CENTER_LFE: - channels = 6; - break; - default: - val = DSP_BIND_FRONT; - channels = 2; - break; - } - i810_set_dac_channels ( state, channels ); - - /* check that they really got turned on */ - if (!(state->card->ac97_status & SURR_ON)) - val &= ~DSP_BIND_SURR; - if (!(state->card->ac97_status & CENTER_LFE_ON)) - val &= ~DSP_BIND_CENTER_LFE; - } - } - return put_user(val, p); - - case SNDCTL_DSP_MAPINBUF: - case SNDCTL_DSP_MAPOUTBUF: - case SNDCTL_DSP_SETSYNCRO: - case SOUND_PCM_WRITE_FILTER: - case SOUND_PCM_READ_FILTER: -#ifdef DEBUG - printk("SNDCTL_* -EINVAL\n"); -#endif - return -EINVAL; - } - return -EINVAL; -} - -static int i810_open(struct inode *inode, struct file *file) -{ - int i = 0; - struct i810_card *card = devs; - struct i810_state *state = NULL; - struct dmabuf *dmabuf = NULL; - - /* find an avaiable virtual channel (instance of /dev/dsp) */ - while (card != NULL) { - /* - * If we are initializing and then fail, card could go - * away unuexpectedly while we are in the for() loop. - * So, check for card on each iteration before we check - * for card->initializing to avoid a possible oops. - * This usually only matters for times when the driver is - * autoloaded by kmod. - */ - for (i = 0; i < 50 && card && card->initializing; i++) { - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ/20); - } - for (i = 0; i < NR_HW_CH && card && !card->initializing; i++) { - if (card->states[i] == NULL) { - state = card->states[i] = (struct i810_state *) - kzalloc(sizeof(struct i810_state), GFP_KERNEL); - if (state == NULL) - return -ENOMEM; - dmabuf = &state->dmabuf; - goto found_virt; - } - } - card = card->next; - } - /* no more virtual channel avaiable */ - if (!state) - return -ENODEV; - -found_virt: - /* initialize the virtual channel */ - state->virt = i; - state->card = card; - state->magic = I810_STATE_MAGIC; - init_waitqueue_head(&dmabuf->wait); - mutex_init(&state->open_mutex); - file->private_data = state; - dmabuf->trigger = 0; - - /* allocate hardware channels */ - if(file->f_mode & FMODE_READ) { - if((dmabuf->read_channel = card->alloc_rec_pcm_channel(card)) == NULL) { - kfree (card->states[i]); - card->states[i] = NULL; - return -EBUSY; - } - dmabuf->trigger |= PCM_ENABLE_INPUT; - i810_set_adc_rate(state, 8000); - } - if(file->f_mode & FMODE_WRITE) { - if((dmabuf->write_channel = card->alloc_pcm_channel(card)) == NULL) { - /* make sure we free the record channel allocated above */ - if(file->f_mode & FMODE_READ) - card->free_pcm_channel(card,dmabuf->read_channel->num); - kfree (card->states[i]); - card->states[i] = NULL; - return -EBUSY; - } - /* Initialize to 8kHz? What if we don't support 8kHz? */ - /* Let's change this to check for S/PDIF stuff */ - - dmabuf->trigger |= PCM_ENABLE_OUTPUT; - if ( spdif_locked ) { - i810_set_dac_rate(state, spdif_locked); - i810_set_spdif_output(state, AC97_EA_SPSA_3_4, spdif_locked); - } else { - i810_set_dac_rate(state, 8000); - /* Put the ACLink in 2 channel mode by default */ - i = I810_IOREADL(card, GLOB_CNT); - I810_IOWRITEL(i & 0xffcfffff, card, GLOB_CNT); - } - } - - /* set default sample format. According to OSS Programmer's Guide /dev/dsp - should be default to unsigned 8-bits, mono, with sample rate 8kHz and - /dev/dspW will accept 16-bits sample, but we don't support those so we - set it immediately to stereo and 16bit, which is all we do support */ - dmabuf->fmt |= I810_FMT_16BIT | I810_FMT_STEREO; - dmabuf->ossfragsize = 0; - dmabuf->ossmaxfrags = 0; - dmabuf->subdivision = 0; - - state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); - - return nonseekable_open(inode, file); -} - -static int i810_release(struct inode *inode, struct file *file) -{ - struct i810_state *state = (struct i810_state *)file->private_data; - struct i810_card *card = state->card; - struct dmabuf *dmabuf = &state->dmabuf; - unsigned long flags; - - lock_kernel(); - - /* stop DMA state machine and free DMA buffers/channels */ - if(dmabuf->trigger & PCM_ENABLE_OUTPUT) { - drain_dac(state, 0); - } - if(dmabuf->trigger & PCM_ENABLE_INPUT) { - stop_adc(state); - } - spin_lock_irqsave(&card->lock, flags); - dealloc_dmabuf(state); - if (file->f_mode & FMODE_WRITE) { - state->card->free_pcm_channel(state->card, dmabuf->write_channel->num); - } - if (file->f_mode & FMODE_READ) { - state->card->free_pcm_channel(state->card, dmabuf->read_channel->num); - } - - state->card->states[state->virt] = NULL; - kfree(state); - spin_unlock_irqrestore(&card->lock, flags); - unlock_kernel(); - - return 0; -} - -static /*const*/ struct file_operations i810_audio_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .read = i810_read, - .write = i810_write, - .poll = i810_poll, - .ioctl = i810_ioctl, - .mmap = i810_mmap, - .open = i810_open, - .release = i810_release, -}; - -/* Write AC97 codec registers */ - -static u16 i810_ac97_get_mmio(struct ac97_codec *dev, u8 reg) -{ - struct i810_card *card = dev->private_data; - int count = 100; - u16 reg_set = IO_REG_OFF(dev) | (reg&0x7f); - - while(count-- && (readb(card->iobase_mmio + CAS) & 1)) - udelay(1); - -#ifdef DEBUG_MMIO - { - u16 ans = readw(card->ac97base_mmio + reg_set); - printk(KERN_DEBUG "i810_audio: ac97_get_mmio(%d) -> 0x%04X\n", ((int) reg_set) & 0xffff, (u32) ans); - return ans; - } -#else - return readw(card->ac97base_mmio + reg_set); -#endif -} - -static u16 i810_ac97_get_io(struct ac97_codec *dev, u8 reg) -{ - struct i810_card *card = dev->private_data; - int count = 100; - u16 reg_set = IO_REG_OFF(dev) | (reg&0x7f); - - while(count-- && (I810_IOREADB(card, CAS) & 1)) - udelay(1); - - return inw(card->ac97base + reg_set); -} - -static void i810_ac97_set_mmio(struct ac97_codec *dev, u8 reg, u16 data) -{ - struct i810_card *card = dev->private_data; - int count = 100; - u16 reg_set = IO_REG_OFF(dev) | (reg&0x7f); - - while(count-- && (readb(card->iobase_mmio + CAS) & 1)) - udelay(1); - - writew(data, card->ac97base_mmio + reg_set); - -#ifdef DEBUG_MMIO - printk(KERN_DEBUG "i810_audio: ac97_set_mmio(0x%04X, %d)\n", (u32) data, ((int) reg_set) & 0xffff); -#endif -} - -static void i810_ac97_set_io(struct ac97_codec *dev, u8 reg, u16 data) -{ - struct i810_card *card = dev->private_data; - int count = 100; - u16 reg_set = IO_REG_OFF(dev) | (reg&0x7f); - - while(count-- && (I810_IOREADB(card, CAS) & 1)) - udelay(1); - - outw(data, card->ac97base + reg_set); -} - -static u16 i810_ac97_get(struct ac97_codec *dev, u8 reg) -{ - struct i810_card *card = dev->private_data; - u16 ret; - - spin_lock(&card->ac97_lock); - if (card->use_mmio) { - ret = i810_ac97_get_mmio(dev, reg); - } - else { - ret = i810_ac97_get_io(dev, reg); - } - spin_unlock(&card->ac97_lock); - - return ret; -} - -static void i810_ac97_set(struct ac97_codec *dev, u8 reg, u16 data) -{ - struct i810_card *card = dev->private_data; - - spin_lock(&card->ac97_lock); - if (card->use_mmio) { - i810_ac97_set_mmio(dev, reg, data); - } - else { - i810_ac97_set_io(dev, reg, data); - } - spin_unlock(&card->ac97_lock); -} - - -/* OSS /dev/mixer file operation methods */ - -static int i810_open_mixdev(struct inode *inode, struct file *file) -{ - int i; - int minor = iminor(inode); - struct i810_card *card = devs; - - for (card = devs; card != NULL; card = card->next) { - /* - * If we are initializing and then fail, card could go - * away unuexpectedly while we are in the for() loop. - * So, check for card on each iteration before we check - * for card->initializing to avoid a possible oops. - * This usually only matters for times when the driver is - * autoloaded by kmod. - */ - for (i = 0; i < 50 && card && card->initializing; i++) { - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ/20); - } - for (i = 0; i < NR_AC97 && card && !card->initializing; i++) - if (card->ac97_codec[i] != NULL && - card->ac97_codec[i]->dev_mixer == minor) { - file->private_data = card->ac97_codec[i]; - return nonseekable_open(inode, file); - } - } - return -ENODEV; -} - -static int i810_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, - unsigned long arg) -{ - struct ac97_codec *codec = (struct ac97_codec *)file->private_data; - - return codec->mixer_ioctl(codec, cmd, arg); -} - -static /*const*/ struct file_operations i810_mixer_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .ioctl = i810_ioctl_mixdev, - .open = i810_open_mixdev, -}; - -/* AC97 codec initialisation. These small functions exist so we don't - duplicate code between module init and apm resume */ - -static inline int i810_ac97_exists(struct i810_card *card, int ac97_number) -{ - u32 reg = I810_IOREADL(card, GLOB_STA); - switch (ac97_number) { - case 0: - return reg & (1<<8); - case 1: - return reg & (1<<9); - case 2: - return reg & (1<<28); - } - return 0; -} - -static inline int i810_ac97_enable_variable_rate(struct ac97_codec *codec) -{ - i810_ac97_set(codec, AC97_EXTENDED_STATUS, 9); - i810_ac97_set(codec,AC97_EXTENDED_STATUS, - i810_ac97_get(codec, AC97_EXTENDED_STATUS)|0xE800); - - return (i810_ac97_get(codec, AC97_EXTENDED_STATUS)&1); -} - - -static int i810_ac97_probe_and_powerup(struct i810_card *card,struct ac97_codec *codec) -{ - /* Returns 0 on failure */ - int i; - - if (ac97_probe_codec(codec) == 0) return 0; - - /* power it all up */ - i810_ac97_set(codec, AC97_POWER_CONTROL, - i810_ac97_get(codec, AC97_POWER_CONTROL) & ~0x7f00); - - /* wait for analog ready */ - for (i=100; i && ((i810_ac97_get(codec, AC97_POWER_CONTROL) & 0xf) != 0xf); i--) - { - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ/20); - } - return i; -} - -static int is_new_ich(u16 pci_id) -{ - switch (pci_id) { - case PCI_DEVICE_ID_INTEL_82801DB_5: - case PCI_DEVICE_ID_INTEL_82801EB_5: - case PCI_DEVICE_ID_INTEL_ESB_5: - case PCI_DEVICE_ID_INTEL_ICH6_18: - return 1; - default: - break; - } - - return 0; -} - -static inline int ich_use_mmio(struct i810_card *card) -{ - return is_new_ich(card->pci_id) && card->use_mmio; -} - -/** - * i810_ac97_power_up_bus - bring up AC97 link - * @card : ICH audio device to power up - * - * Bring up the ACLink AC97 codec bus - */ - -static int i810_ac97_power_up_bus(struct i810_card *card) -{ - u32 reg = I810_IOREADL(card, GLOB_CNT); - int i; - int primary_codec_id = 0; - - if((reg&2)==0) /* Cold required */ - reg|=2; - else - reg|=4; /* Warm */ - - reg&=~8; /* ACLink on */ - - /* At this point we deassert AC_RESET # */ - I810_IOWRITEL(reg , card, GLOB_CNT); - - /* We must now allow time for the Codec initialisation. - 600mS is the specified time */ - - for(i=0;i<10;i++) - { - if((I810_IOREADL(card, GLOB_CNT)&4)==0) - break; - - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ/20); - } - if(i==10) - { - printk(KERN_ERR "i810_audio: AC'97 reset failed.\n"); - return 0; - } - - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ/2); - - /* - * See if the primary codec comes ready. This must happen - * before we start doing DMA stuff - */ - /* see i810_ac97_init for the next 10 lines (jsaw) */ - if (card->use_mmio) - readw(card->ac97base_mmio); - else - inw(card->ac97base); - if (ich_use_mmio(card)) { - primary_codec_id = (int) readl(card->iobase_mmio + SDM) & 0x3; - printk(KERN_INFO "i810_audio: Primary codec has ID %d\n", - primary_codec_id); - } - - if(! i810_ac97_exists(card, primary_codec_id)) - { - printk(KERN_INFO "i810_audio: Codec not ready.. wait.. "); - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ); /* actually 600mS by the spec */ - - if(i810_ac97_exists(card, primary_codec_id)) - printk("OK\n"); - else - printk("no response.\n"); - } - if (card->use_mmio) - readw(card->ac97base_mmio); - else - inw(card->ac97base); - return 1; -} - -static int __devinit i810_ac97_init(struct i810_card *card) -{ - int num_ac97 = 0; - int ac97_id; - int total_channels = 0; - int nr_ac97_max = card_cap[card->pci_id_internal].nr_ac97; - struct ac97_codec *codec; - u16 eid; - u32 reg; - - if(!i810_ac97_power_up_bus(card)) return 0; - - /* Number of channels supported */ - /* What about the codec? Just because the ICH supports */ - /* multiple channels doesn't mean the codec does. */ - /* we'll have to modify this in the codec section below */ - /* to reflect what the codec has. */ - /* ICH and ICH0 only support 2 channels so don't bother */ - /* to check.... */ - - card->channels = 2; - reg = I810_IOREADL(card, GLOB_STA); - if ( reg & 0x0200000 ) - card->channels = 6; - else if ( reg & 0x0100000 ) - card->channels = 4; - printk(KERN_INFO "i810_audio: Audio Controller supports %d channels.\n", card->channels); - printk(KERN_INFO "i810_audio: Defaulting to base 2 channel mode.\n"); - reg = I810_IOREADL(card, GLOB_CNT); - I810_IOWRITEL(reg & 0xffcfffff, card, GLOB_CNT); - - for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) - card->ac97_codec[num_ac97] = NULL; - - /*@FIXME I don't know, if I'm playing to safe here... (jsaw) */ - if ((nr_ac97_max > 2) && !card->use_mmio) nr_ac97_max = 2; - - for (num_ac97 = 0; num_ac97 < nr_ac97_max; num_ac97++) { - /* codec reset */ - printk(KERN_INFO "i810_audio: Resetting connection %d\n", num_ac97); - if (card->use_mmio) - readw(card->ac97base_mmio + 0x80*num_ac97); - else - inw(card->ac97base + 0x80*num_ac97); - - /* If we have the SDATA_IN Map Register, as on ICH4, we - do not loop thru all possible codec IDs but thru all - possible IO channels. Bit 0:1 of SDM then holds the - last codec ID spoken to. - */ - if (ich_use_mmio(card)) { - ac97_id = (int) readl(card->iobase_mmio + SDM) & 0x3; - printk(KERN_INFO "i810_audio: Connection %d with codec id %d\n", - num_ac97, ac97_id); - } - else { - ac97_id = num_ac97; - } - - /* The ICH programmer's reference says you should */ - /* check the ready status before probing. So we chk */ - /* What do we do if it's not ready? Wait and try */ - /* again, or abort? */ - if (!i810_ac97_exists(card, ac97_id)) { - if(num_ac97 == 0) - printk(KERN_ERR "i810_audio: Primary codec not ready.\n"); - } - - if ((codec = ac97_alloc_codec()) == NULL) - return -ENOMEM; - - /* initialize some basic codec information, other fields will be filled - in ac97_probe_codec */ - codec->private_data = card; - codec->id = ac97_id; - card->ac97_id_map[ac97_id] = num_ac97 * 0x80; - - if (card->use_mmio) { - codec->codec_read = i810_ac97_get_mmio; - codec->codec_write = i810_ac97_set_mmio; - } - else { - codec->codec_read = i810_ac97_get_io; - codec->codec_write = i810_ac97_set_io; - } - - if(!i810_ac97_probe_and_powerup(card,codec)) { - printk(KERN_ERR "i810_audio: timed out waiting for codec %d analog ready.\n", ac97_id); - ac97_release_codec(codec); - break; /* it didn't work */ - } - /* Store state information about S/PDIF transmitter */ - card->ac97_status = 0; - - /* Don't attempt to get eid until powerup is complete */ - eid = i810_ac97_get(codec, AC97_EXTENDED_ID); - - if(eid==0xFFFF) - { - printk(KERN_WARNING "i810_audio: no codec attached ?\n"); - ac97_release_codec(codec); - break; - } - - /* Check for an AC97 1.0 soft modem (ID1) */ - - if(codec->modem) - { - printk(KERN_WARNING "i810_audio: codec %d is a softmodem - skipping.\n", ac97_id); - ac97_release_codec(codec); - continue; - } - - card->ac97_features = eid; - - /* Now check the codec for useful features to make up for - the dumbness of the 810 hardware engine */ - - if(!(eid&0x0001)) - printk(KERN_WARNING "i810_audio: only 48Khz playback available.\n"); - else - { - if(!i810_ac97_enable_variable_rate(codec)) { - printk(KERN_WARNING "i810_audio: Codec refused to allow VRA, using 48Khz only.\n"); - card->ac97_features&=~1; - } - } - - /* Turn on the amplifier */ - - codec->codec_write(codec, AC97_POWER_CONTROL, - codec->codec_read(codec, AC97_POWER_CONTROL) & ~0x8000); - - /* Determine how many channels the codec(s) support */ - /* - The primary codec always supports 2 */ - /* - If the codec supports AMAP, surround DACs will */ - /* automaticlly get assigned to slots. */ - /* * Check for surround DACs and increment if */ - /* found. */ - /* - Else check if the codec is revision 2.2 */ - /* * If surround DACs exist, assign them to slots */ - /* and increment channel count. */ - - /* All of this only applies to ICH2 and above. ICH */ - /* and ICH0 only support 2 channels. ICH2 will only */ - /* support multiple codecs in a "split audio" config. */ - /* as described above. */ - - /* TODO: Remove all the debugging messages! */ - - if((eid & 0xc000) == 0) /* primary codec */ - total_channels += 2; - - if(eid & 0x200) { /* GOOD, AMAP support */ - if (eid & 0x0080) /* L/R Surround channels */ - total_channels += 2; - if (eid & 0x0140) /* LFE and Center channels */ - total_channels += 2; - printk("i810_audio: AC'97 codec %d supports AMAP, total channels = %d\n", ac97_id, total_channels); - } else if (eid & 0x0400) { /* this only works on 2.2 compliant codecs */ - eid &= 0xffcf; - if((eid & 0xc000) != 0) { - switch ( total_channels ) { - case 2: - /* Set dsa1, dsa0 to 01 */ - eid |= 0x0010; - break; - case 4: - /* Set dsa1, dsa0 to 10 */ - eid |= 0x0020; - break; - case 6: - /* Set dsa1, dsa0 to 11 */ - eid |= 0x0030; - break; - } - total_channels += 2; - } - i810_ac97_set(codec, AC97_EXTENDED_ID, eid); - eid = i810_ac97_get(codec, AC97_EXTENDED_ID); - printk("i810_audio: AC'97 codec %d, new EID value = 0x%04x\n", ac97_id, eid); - if (eid & 0x0080) /* L/R Surround channels */ - total_channels += 2; - if (eid & 0x0140) /* LFE and Center channels */ - total_channels += 2; - printk("i810_audio: AC'97 codec %d, DAC map configured, total channels = %d\n", ac97_id, total_channels); - } else { - printk("i810_audio: AC'97 codec %d Unable to map surround DAC's (or DAC's not present), total channels = %d\n", ac97_id, total_channels); - } - - if ((codec->dev_mixer = register_sound_mixer(&i810_mixer_fops, -1)) < 0) { - printk(KERN_ERR "i810_audio: couldn't register mixer!\n"); - ac97_release_codec(codec); - break; - } - - card->ac97_codec[num_ac97] = codec; - } - - /* tune up the primary codec */ - ac97_tune_hardware(card->pci_dev, ac97_quirks, ac97_quirk); - - /* pick the minimum of channels supported by ICHx or codec(s) */ - card->channels = (card->channels > total_channels)?total_channels:card->channels; - - return num_ac97; -} - -static void __devinit i810_configure_clocking (void) -{ - struct i810_card *card; - struct i810_state *state; - struct dmabuf *dmabuf; - unsigned int i, offset, new_offset; - unsigned long flags; - - card = devs; - /* We could try to set the clocking for multiple cards, but can you even have - * more than one i810 in a machine? Besides, clocking is global, so unless - * someone actually thinks more than one i810 in a machine is possible and - * decides to rewrite that little bit, setting the rate for more than one card - * is a waste of time. - */ - if(card != NULL) { - state = card->states[0] = (struct i810_state *) - kzalloc(sizeof(struct i810_state), GFP_KERNEL); - if (state == NULL) - return; - dmabuf = &state->dmabuf; - - dmabuf->write_channel = card->alloc_pcm_channel(card); - state->virt = 0; - state->card = card; - state->magic = I810_STATE_MAGIC; - init_waitqueue_head(&dmabuf->wait); - mutex_init(&state->open_mutex); - dmabuf->fmt = I810_FMT_STEREO | I810_FMT_16BIT; - dmabuf->trigger = PCM_ENABLE_OUTPUT; - i810_set_spdif_output(state, -1, 0); - i810_set_dac_channels(state, 2); - i810_set_dac_rate(state, 48000); - if(prog_dmabuf(state, 0) != 0) { - goto config_out_nodmabuf; - } - if(dmabuf->dmasize < 16384) { - goto config_out; - } - dmabuf->count = dmabuf->dmasize; - CIV_TO_LVI(card, dmabuf->write_channel->port, -1); - local_irq_save(flags); - start_dac(state); - offset = i810_get_dma_addr(state, 0); - mdelay(50); - new_offset = i810_get_dma_addr(state, 0); - stop_dac(state); - local_irq_restore(flags); - i = new_offset - offset; -#ifdef DEBUG_INTERRUPTS - printk("i810_audio: %d bytes in 50 milliseconds\n", i); -#endif - if(i == 0) - goto config_out; - i = i / 4 * 20; - if (i > 48500 || i < 47500) { - clocking = clocking * clocking / i; - printk("i810_audio: setting clocking to %d\n", clocking); - } -config_out: - dealloc_dmabuf(state); -config_out_nodmabuf: - state->card->free_pcm_channel(state->card,state->dmabuf.write_channel->num); - kfree(state); - card->states[0] = NULL; - } -} - -/* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered - until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */ - -static int __devinit i810_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) -{ - struct i810_card *card; - - if (pci_enable_device(pci_dev)) - return -EIO; - - if (pci_set_dma_mask(pci_dev, I810_DMA_MASK)) { - printk(KERN_ERR "i810_audio: architecture does not support" - " 32bit PCI busmaster DMA\n"); - return -ENODEV; - } - - if ((card = kzalloc(sizeof(struct i810_card), GFP_KERNEL)) == NULL) { - printk(KERN_ERR "i810_audio: out of memory\n"); - return -ENOMEM; - } - - card->initializing = 1; - card->pci_dev = pci_dev; - card->pci_id = pci_id->device; - card->ac97base = pci_resource_start (pci_dev, 0); - card->iobase = pci_resource_start (pci_dev, 1); - - if (!(card->ac97base) || !(card->iobase)) { - card->ac97base = 0; - card->iobase = 0; - } - - /* if chipset could have mmio capability, check it */ - if (card_cap[pci_id->driver_data].flags & CAP_MMIO) { - card->ac97base_mmio_phys = pci_resource_start (pci_dev, 2); - card->iobase_mmio_phys = pci_resource_start (pci_dev, 3); - - if ((card->ac97base_mmio_phys) && (card->iobase_mmio_phys)) { - card->use_mmio = 1; - } - else { - card->ac97base_mmio_phys = 0; - card->iobase_mmio_phys = 0; - } - } - - if (!(card->use_mmio) && (!(card->iobase) || !(card->ac97base))) { - printk(KERN_ERR "i810_audio: No I/O resources available.\n"); - goto out_mem; - } - - card->irq = pci_dev->irq; - card->next = devs; - card->magic = I810_CARD_MAGIC; -#ifdef CONFIG_PM - card->pm_suspended=0; -#endif - spin_lock_init(&card->lock); - spin_lock_init(&card->ac97_lock); - devs = card; - - pci_set_master(pci_dev); - - printk(KERN_INFO "i810: %s found at IO 0x%04lx and 0x%04lx, " - "MEM 0x%04lx and 0x%04lx, IRQ %d\n", - card_names[pci_id->driver_data], - card->iobase, card->ac97base, - card->ac97base_mmio_phys, card->iobase_mmio_phys, - card->irq); - - card->alloc_pcm_channel = i810_alloc_pcm_channel; - card->alloc_rec_pcm_channel = i810_alloc_rec_pcm_channel; - card->alloc_rec_mic_channel = i810_alloc_rec_mic_channel; - card->free_pcm_channel = i810_free_pcm_channel; - - if ((card->channel = pci_alloc_consistent(pci_dev, - sizeof(struct i810_channel)*NR_HW_CH, &card->chandma)) == NULL) { - printk(KERN_ERR "i810: cannot allocate channel DMA memory\n"); - goto out_mem; - } - - { /* We may dispose of this altogether some time soon, so... */ - struct i810_channel *cp = card->channel; - - cp[0].offset = 0; - cp[0].port = 0x00; - cp[0].num = 0; - cp[1].offset = 0; - cp[1].port = 0x10; - cp[1].num = 1; - cp[2].offset = 0; - cp[2].port = 0x20; - cp[2].num = 2; - } - - /* claim our iospace and irq */ - if (!request_region(card->iobase, 64, card_names[pci_id->driver_data])) { - printk(KERN_ERR "i810_audio: unable to allocate region %lx\n", card->iobase); - goto out_region1; - } - if (!request_region(card->ac97base, 256, card_names[pci_id->driver_data])) { - printk(KERN_ERR "i810_audio: unable to allocate region %lx\n", card->ac97base); - goto out_region2; - } - - if (card->use_mmio) { - if (request_mem_region(card->ac97base_mmio_phys, 512, "ich_audio MMBAR")) { - if ((card->ac97base_mmio = ioremap(card->ac97base_mmio_phys, 512))) { /*@FIXME can ioremap fail? don't know (jsaw) */ - if (request_mem_region(card->iobase_mmio_phys, 256, "ich_audio MBBAR")) { - if ((card->iobase_mmio = ioremap(card->iobase_mmio_phys, 256))) { - printk(KERN_INFO "i810: %s mmio at 0x%04lx and 0x%04lx\n", - card_names[pci_id->driver_data], - (unsigned long) card->ac97base_mmio, - (unsigned long) card->iobase_mmio); - } - else { - iounmap(card->ac97base_mmio); - release_mem_region(card->ac97base_mmio_phys, 512); - release_mem_region(card->iobase_mmio_phys, 512); - card->use_mmio = 0; - } - } - else { - iounmap(card->ac97base_mmio); - release_mem_region(card->ac97base_mmio_phys, 512); - card->use_mmio = 0; - } - } - } - else { - card->use_mmio = 0; - } - } - - /* initialize AC97 codec and register /dev/mixer */ - if (i810_ac97_init(card) <= 0) - goto out_iospace; - pci_set_drvdata(pci_dev, card); - - if(clocking == 0) { - clocking = 48000; - i810_configure_clocking(); - } - - /* register /dev/dsp */ - if ((card->dev_audio = register_sound_dsp(&i810_audio_fops, -1)) < 0) { - int i; - printk(KERN_ERR "i810_audio: couldn't register DSP device!\n"); - for (i = 0; i < NR_AC97; i++) - if (card->ac97_codec[i] != NULL) { - unregister_sound_mixer(card->ac97_codec[i]->dev_mixer); - ac97_release_codec(card->ac97_codec[i]); - } - goto out_iospace; - } - - if (request_irq(card->irq, &i810_interrupt, IRQF_SHARED, - card_names[pci_id->driver_data], card)) { - printk(KERN_ERR "i810_audio: unable to allocate irq %d\n", card->irq); - goto out_iospace; - } - - - card->initializing = 0; - return 0; - -out_iospace: - if (card->use_mmio) { - iounmap(card->ac97base_mmio); - iounmap(card->iobase_mmio); - release_mem_region(card->ac97base_mmio_phys, 512); - release_mem_region(card->iobase_mmio_phys, 256); - } - release_region(card->ac97base, 256); -out_region2: - release_region(card->iobase, 64); -out_region1: - pci_free_consistent(pci_dev, sizeof(struct i810_channel)*NR_HW_CH, - card->channel, card->chandma); -out_mem: - kfree(card); - return -ENODEV; -} - -static void __devexit i810_remove(struct pci_dev *pci_dev) -{ - int i; - struct i810_card *card = pci_get_drvdata(pci_dev); - /* free hardware resources */ - free_irq(card->irq, devs); - release_region(card->iobase, 64); - release_region(card->ac97base, 256); - pci_free_consistent(pci_dev, sizeof(struct i810_channel)*NR_HW_CH, - card->channel, card->chandma); - if (card->use_mmio) { - iounmap(card->ac97base_mmio); - iounmap(card->iobase_mmio); - release_mem_region(card->ac97base_mmio_phys, 512); - release_mem_region(card->iobase_mmio_phys, 256); - } - - /* unregister audio devices */ - for (i = 0; i < NR_AC97; i++) - if (card->ac97_codec[i] != NULL) { - unregister_sound_mixer(card->ac97_codec[i]->dev_mixer); - ac97_release_codec(card->ac97_codec[i]); - card->ac97_codec[i] = NULL; - } - unregister_sound_dsp(card->dev_audio); - kfree(card); -} - -#ifdef CONFIG_PM -static int i810_pm_suspend(struct pci_dev *dev, pm_message_t pm_state) -{ - struct i810_card *card = pci_get_drvdata(dev); - struct i810_state *state; - unsigned long flags; - struct dmabuf *dmabuf; - int i,num_ac97; -#ifdef DEBUG - printk("i810_audio: i810_pm_suspend called\n"); -#endif - if(!card) return 0; - spin_lock_irqsave(&card->lock, flags); - card->pm_suspended=1; - for(i=0;i<NR_HW_CH;i++) { - state = card->states[i]; - if(!state) continue; - /* this happens only if there are open files */ - dmabuf = &state->dmabuf; - if(dmabuf->enable & DAC_RUNNING || - (dmabuf->count && (dmabuf->trigger & PCM_ENABLE_OUTPUT))) { - state->pm_saved_dac_rate=dmabuf->rate; - stop_dac(state); - } else { - state->pm_saved_dac_rate=0; - } - if(dmabuf->enable & ADC_RUNNING) { - state->pm_saved_adc_rate=dmabuf->rate; - stop_adc(state); - } else { - state->pm_saved_adc_rate=0; - } - dmabuf->ready = 0; - dmabuf->swptr = dmabuf->hwptr = 0; - dmabuf->count = dmabuf->total_bytes = 0; - } - - spin_unlock_irqrestore(&card->lock, flags); - - /* save mixer settings */ - for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { - struct ac97_codec *codec = card->ac97_codec[num_ac97]; - if(!codec) continue; - for(i=0;i< SOUND_MIXER_NRDEVICES ;i++) { - if((supported_mixer(codec,i)) && - (codec->read_mixer)) { - card->pm_saved_mixer_settings[i][num_ac97]= - codec->read_mixer(codec,i); - } - } - } - pci_save_state(dev); /* XXX do we need this? */ - pci_disable_device(dev); /* disable busmastering */ - pci_set_power_state(dev,3); /* Zzz. */ - - return 0; -} - - -static int i810_pm_resume(struct pci_dev *dev) -{ - int num_ac97,i=0; - struct i810_card *card=pci_get_drvdata(dev); - pci_enable_device(dev); - pci_restore_state (dev); - - /* observation of a toshiba portege 3440ct suggests that the - hardware has to be more or less completely reinitialized from - scratch after an apm suspend. Works For Me. -dan */ - - i810_ac97_power_up_bus(card); - - for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { - struct ac97_codec *codec = card->ac97_codec[num_ac97]; - /* check they haven't stolen the hardware while we were - away */ - if(!codec || !i810_ac97_exists(card,num_ac97)) { - if(num_ac97) continue; - else BUG(); - } - if(!i810_ac97_probe_and_powerup(card,codec)) BUG(); - - if((card->ac97_features&0x0001)) { - /* at probe time we found we could do variable - rates, but APM suspend has made it forget - its magical powers */ - if(!i810_ac97_enable_variable_rate(codec)) BUG(); - } - /* we lost our mixer settings, so restore them */ - for(i=0;i< SOUND_MIXER_NRDEVICES ;i++) { - if(supported_mixer(codec,i)){ - int val=card-> - pm_saved_mixer_settings[i][num_ac97]; - codec->mixer_state[i]=val; - codec->write_mixer(codec,i, - (val & 0xff) , - ((val >> 8) & 0xff) ); - } - } - } - - /* we need to restore the sample rate from whatever it was */ - for(i=0;i<NR_HW_CH;i++) { - struct i810_state * state=card->states[i]; - if(state) { - if(state->pm_saved_adc_rate) - i810_set_adc_rate(state,state->pm_saved_adc_rate); - if(state->pm_saved_dac_rate) - i810_set_dac_rate(state,state->pm_saved_dac_rate); - } - } - - - card->pm_suspended = 0; - - /* any processes that were reading/writing during the suspend - probably ended up here */ - for(i=0;i<NR_HW_CH;i++) { - struct i810_state *state = card->states[i]; - if(state) wake_up(&state->dmabuf.wait); - } - - return 0; -} -#endif /* CONFIG_PM */ - -MODULE_AUTHOR("The Linux kernel team"); -MODULE_DESCRIPTION("Intel 810 audio support"); -MODULE_LICENSE("GPL"); -module_param(ftsodell, int, 0444); -module_param(clocking, uint, 0444); -module_param(strict_clocking, int, 0444); -module_param(spdif_locked, int, 0444); - -#define I810_MODULE_NAME "i810_audio" - -static struct pci_driver i810_pci_driver = { - .name = I810_MODULE_NAME, - .id_table = i810_pci_tbl, - .probe = i810_probe, - .remove = __devexit_p(i810_remove), -#ifdef CONFIG_PM - .suspend = i810_pm_suspend, - .resume = i810_pm_resume, -#endif /* CONFIG_PM */ -}; - - -static int __init i810_init_module (void) -{ - int retval; - - printk(KERN_INFO "Intel 810 + AC97 Audio, version " - DRIVER_VERSION ", " __TIME__ " " __DATE__ "\n"); - - retval = pci_register_driver(&i810_pci_driver); - if (retval) - return retval; - - if(ftsodell != 0) { - printk("i810_audio: ftsodell is now a deprecated option.\n"); - } - if(spdif_locked > 0 ) { - if(spdif_locked == 32000 || spdif_locked == 44100 || spdif_locked == 48000) { - printk("i810_audio: Enabling S/PDIF at sample rate %dHz.\n", spdif_locked); - } else { - printk("i810_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n"); - spdif_locked = 0; - } - } - - return 0; -} - -static void __exit i810_cleanup_module (void) -{ - pci_unregister_driver(&i810_pci_driver); -} - -module_init(i810_init_module); -module_exit(i810_cleanup_module); - -/* -Local Variables: -c-basic-offset: 8 -End: -*/ diff --git a/sound/oss/via82cxxx_audio.c b/sound/oss/via82cxxx_audio.c deleted file mode 100644 index f95aa0946758..000000000000 --- a/sound/oss/via82cxxx_audio.c +++ /dev/null @@ -1,3616 +0,0 @@ -/* - * Support for VIA 82Cxxx Audio Codecs - * Copyright 1999,2000 Jeff Garzik - * - * Updated to support the VIA 8233/8235 audio subsystem - * Alan Cox <alan@redhat.com> (C) Copyright 2002, 2003 Red Hat Inc - * - * Distributed under the GNU GENERAL PUBLIC LICENSE (GPL) Version 2. - * See the "COPYING" file distributed with this software for more info. - * NO WARRANTY - * - * For a list of known bugs (errata) and documentation, - * see via-audio.pdf in Documentation/DocBook. - * If this documentation does not exist, run "make pdfdocs". - */ - - -#define VIA_VERSION "1.9.1-ac4-2.5" - - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/fs.h> -#include <linux/mm.h> -#include <linux/pci.h> -#include <linux/poison.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/proc_fs.h> -#include <linux/spinlock.h> -#include <linux/sound.h> -#include <linux/poll.h> -#include <linux/soundcard.h> -#include <linux/ac97_codec.h> -#include <linux/ioport.h> -#include <linux/delay.h> -#include <linux/dma-mapping.h> -#include <asm/io.h> -#include <asm/uaccess.h> -#include <linux/mutex.h> - -#include "sound_config.h" -#include "dev_table.h" -#include "mpu401.h" - - -#undef VIA_DEBUG /* define to enable debugging output and checks */ -#ifdef VIA_DEBUG -/* note: prints function name for you */ -#define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args) -#else -#define DPRINTK(fmt, args...) -#endif - -#undef VIA_NDEBUG /* define to disable lightweight runtime checks */ -#ifdef VIA_NDEBUG -#define assert(expr) -#else -#define assert(expr) \ - if(!(expr)) { \ - printk( "Assertion failed! %s,%s,%s,line=%d\n", \ - #expr,__FILE__,__FUNCTION__,__LINE__); \ - } -#endif - -#define VIA_SUPPORT_MMAP 1 /* buggy, for now... */ - -#define MAX_CARDS 1 - -#define VIA_CARD_NAME "VIA 82Cxxx Audio driver " VIA_VERSION -#define VIA_MODULE_NAME "via82cxxx" -#define PFX VIA_MODULE_NAME ": " - -#define VIA_COUNTER_LIMIT 100000 - -/* size of DMA buffers */ -#define VIA_MAX_BUFFER_DMA_PAGES 32 - -/* buffering default values in ms */ -#define VIA_DEFAULT_FRAG_TIME 20 -#define VIA_DEFAULT_BUFFER_TIME 500 - -/* the hardware has a 256 fragment limit */ -#define VIA_MIN_FRAG_NUMBER 2 -#define VIA_MAX_FRAG_NUMBER 128 - -#define VIA_MAX_FRAG_SIZE PAGE_SIZE -#define VIA_MIN_FRAG_SIZE (VIA_MAX_BUFFER_DMA_PAGES * PAGE_SIZE / VIA_MAX_FRAG_NUMBER) - - -/* 82C686 function 5 (audio codec) PCI configuration registers */ -#define VIA_ACLINK_STATUS 0x40 -#define VIA_ACLINK_CTRL 0x41 -#define VIA_FUNC_ENABLE 0x42 -#define VIA_PNP_CONTROL 0x43 -#define VIA_FM_NMI_CTRL 0x48 - -/* - * controller base 0 (scatter-gather) registers - * - * NOTE: Via datasheet lists first channel as "read" - * channel and second channel as "write" channel. - * I changed the naming of the constants to be more - * clear than I felt the datasheet to be. - */ - -#define VIA_BASE0_PCM_OUT_CHAN 0x00 /* output PCM to user */ -#define VIA_BASE0_PCM_OUT_CHAN_STATUS 0x00 -#define VIA_BASE0_PCM_OUT_CHAN_CTRL 0x01 -#define VIA_BASE0_PCM_OUT_CHAN_TYPE 0x02 - -#define VIA_BASE0_PCM_IN_CHAN 0x10 /* input PCM from user */ -#define VIA_BASE0_PCM_IN_CHAN_STATUS 0x10 -#define VIA_BASE0_PCM_IN_CHAN_CTRL 0x11 -#define VIA_BASE0_PCM_IN_CHAN_TYPE 0x12 - -/* offsets from base */ -#define VIA_PCM_STATUS 0x00 -#define VIA_PCM_CONTROL 0x01 -#define VIA_PCM_TYPE 0x02 -#define VIA_PCM_LEFTVOL 0x02 -#define VIA_PCM_RIGHTVOL 0x03 -#define VIA_PCM_TABLE_ADDR 0x04 -#define VIA_PCM_STOPRATE 0x08 /* 8233+ */ -#define VIA_PCM_BLOCK_COUNT 0x0C - -/* XXX unused DMA channel for FM PCM data */ -#define VIA_BASE0_FM_OUT_CHAN 0x20 -#define VIA_BASE0_FM_OUT_CHAN_STATUS 0x20 -#define VIA_BASE0_FM_OUT_CHAN_CTRL 0x21 -#define VIA_BASE0_FM_OUT_CHAN_TYPE 0x22 - -/* Six channel audio output on 8233 */ -#define VIA_BASE0_MULTI_OUT_CHAN 0x40 -#define VIA_BASE0_MULTI_OUT_CHAN_STATUS 0x40 -#define VIA_BASE0_MULTI_OUT_CHAN_CTRL 0x41 -#define VIA_BASE0_MULTI_OUT_CHAN_TYPE 0x42 - -#define VIA_BASE0_AC97_CTRL 0x80 -#define VIA_BASE0_SGD_STATUS_SHADOW 0x84 -#define VIA_BASE0_GPI_INT_ENABLE 0x8C -#define VIA_INTR_OUT ((1<<0) | (1<<4) | (1<<8)) -#define VIA_INTR_IN ((1<<1) | (1<<5) | (1<<9)) -#define VIA_INTR_FM ((1<<2) | (1<<6) | (1<<10)) -#define VIA_INTR_MASK (VIA_INTR_OUT | VIA_INTR_IN | VIA_INTR_FM) - -/* Newer VIA we need to monitor the low 3 bits of each channel. This - mask covers the channels we don't yet use as well - */ - -#define VIA_NEW_INTR_MASK 0x77077777UL - -/* VIA_BASE0_AUDIO_xxx_CHAN_TYPE bits */ -#define VIA_IRQ_ON_FLAG (1<<0) /* int on each flagged scatter block */ -#define VIA_IRQ_ON_EOL (1<<1) /* int at end of scatter list */ -#define VIA_INT_SEL_PCI_LAST_LINE_READ (0) /* int at PCI read of last line */ -#define VIA_INT_SEL_LAST_SAMPLE_SENT (1<<2) /* int at last sample sent */ -#define VIA_INT_SEL_ONE_LINE_LEFT (1<<3) /* int at less than one line to send */ -#define VIA_PCM_FMT_STEREO (1<<4) /* PCM stereo format (bit clear == mono) */ -#define VIA_PCM_FMT_16BIT (1<<5) /* PCM 16-bit format (bit clear == 8-bit) */ -#define VIA_PCM_REC_FIFO (1<<6) /* PCM Recording FIFO */ -#define VIA_RESTART_SGD_ON_EOL (1<<7) /* restart scatter-gather at EOL */ -#define VIA_PCM_FMT_MASK (VIA_PCM_FMT_STEREO|VIA_PCM_FMT_16BIT) -#define VIA_CHAN_TYPE_MASK (VIA_RESTART_SGD_ON_EOL | \ - VIA_IRQ_ON_FLAG | \ - VIA_IRQ_ON_EOL) -#define VIA_CHAN_TYPE_INT_SELECT (VIA_INT_SEL_LAST_SAMPLE_SENT) - -/* PCI configuration register bits and masks */ -#define VIA_CR40_AC97_READY 0x01 -#define VIA_CR40_AC97_LOW_POWER 0x02 -#define VIA_CR40_SECONDARY_READY 0x04 - -#define VIA_CR41_AC97_ENABLE 0x80 /* enable AC97 codec */ -#define VIA_CR41_AC97_RESET 0x40 /* clear bit to reset AC97 */ -#define VIA_CR41_AC97_WAKEUP 0x20 /* wake up from power-down mode */ -#define VIA_CR41_AC97_SDO 0x10 /* force Serial Data Out (SDO) high */ -#define VIA_CR41_VRA 0x08 /* enable variable sample rate */ -#define VIA_CR41_PCM_ENABLE 0x04 /* AC Link SGD Read Channel PCM Data Output */ -#define VIA_CR41_FM_PCM_ENABLE 0x02 /* AC Link FM Channel PCM Data Out */ -#define VIA_CR41_SB_PCM_ENABLE 0x01 /* AC Link SB PCM Data Output */ -#define VIA_CR41_BOOT_MASK (VIA_CR41_AC97_ENABLE | \ - VIA_CR41_AC97_WAKEUP | \ - VIA_CR41_AC97_SDO) -#define VIA_CR41_RUN_MASK (VIA_CR41_AC97_ENABLE | \ - VIA_CR41_AC97_RESET | \ - VIA_CR41_VRA | \ - VIA_CR41_PCM_ENABLE) - -#define VIA_CR42_SB_ENABLE 0x01 -#define VIA_CR42_MIDI_ENABLE 0x02 -#define VIA_CR42_FM_ENABLE 0x04 -#define VIA_CR42_GAME_ENABLE 0x08 -#define VIA_CR42_MIDI_IRQMASK 0x40 -#define VIA_CR42_MIDI_PNP 0x80 - -#define VIA_CR44_SECOND_CODEC_SUPPORT (1 << 6) -#define VIA_CR44_AC_LINK_ACCESS (1 << 7) - -#define VIA_CR48_FM_TRAP_TO_NMI (1 << 2) - -/* controller base 0 register bitmasks */ -#define VIA_INT_DISABLE_MASK (~(0x01|0x02)) -#define VIA_SGD_STOPPED (1 << 2) -#define VIA_SGD_PAUSED (1 << 6) -#define VIA_SGD_ACTIVE (1 << 7) -#define VIA_SGD_TERMINATE (1 << 6) -#define VIA_SGD_FLAG (1 << 0) -#define VIA_SGD_EOL (1 << 1) -#define VIA_SGD_START (1 << 7) - -#define VIA_CR80_FIRST_CODEC 0 -#define VIA_CR80_SECOND_CODEC (1 << 30) -#define VIA_CR80_FIRST_CODEC_VALID (1 << 25) -#define VIA_CR80_VALID (1 << 25) -#define VIA_CR80_SECOND_CODEC_VALID (1 << 27) -#define VIA_CR80_BUSY (1 << 24) -#define VIA_CR83_BUSY (1) -#define VIA_CR83_FIRST_CODEC_VALID (1 << 1) -#define VIA_CR80_READ (1 << 23) -#define VIA_CR80_WRITE_MODE 0 -#define VIA_CR80_REG_IDX(idx) ((((idx) & 0xFF) >> 1) << 16) - -/* capabilities we announce */ -#ifdef VIA_SUPPORT_MMAP -#define VIA_DSP_CAP (DSP_CAP_REVISION | DSP_CAP_DUPLEX | DSP_CAP_MMAP | \ - DSP_CAP_TRIGGER | DSP_CAP_REALTIME) -#else -#define VIA_DSP_CAP (DSP_CAP_REVISION | DSP_CAP_DUPLEX | \ - DSP_CAP_TRIGGER | DSP_CAP_REALTIME) -#endif - -/* scatter-gather DMA table entry, exactly as passed to hardware */ -struct via_sgd_table { - u32 addr; - u32 count; /* includes additional VIA_xxx bits also */ -}; - -#define VIA_EOL (1 << 31) -#define VIA_FLAG (1 << 30) -#define VIA_STOP (1 << 29) - - -enum via_channel_states { - sgd_stopped = 0, - sgd_in_progress = 1, -}; - - -struct via_buffer_pgtbl { - dma_addr_t handle; - void *cpuaddr; -}; - - -struct via_channel { - atomic_t n_frags; - atomic_t hw_ptr; - wait_queue_head_t wait; - - unsigned int sw_ptr; - unsigned int slop_len; - unsigned int n_irqs; - int bytes; - - unsigned is_active : 1; - unsigned is_record : 1; - unsigned is_mapped : 1; - unsigned is_enabled : 1; - unsigned is_multi: 1; /* 8233 6 channel */ - u8 pcm_fmt; /* VIA_PCM_FMT_xxx */ - u8 channels; /* Channel count */ - - unsigned rate; /* sample rate */ - unsigned int frag_size; - unsigned int frag_number; - - unsigned char intmask; - - volatile struct via_sgd_table *sgtable; - dma_addr_t sgt_handle; - - unsigned int page_number; - struct via_buffer_pgtbl pgtbl[VIA_MAX_BUFFER_DMA_PAGES]; - - long iobase; - - const char *name; -}; - - -/* data stored for each chip */ -struct via_info { - struct pci_dev *pdev; - long baseaddr; - - struct ac97_codec *ac97; - spinlock_t ac97_lock; - spinlock_t lock; - int card_num; /* unique card number, from 0 */ - - int dev_dsp; /* /dev/dsp index from register_sound_dsp() */ - - unsigned rev_h : 1; - unsigned legacy: 1; /* Has legacy ports */ - unsigned intmask: 1; /* Needs int bits */ - unsigned sixchannel: 1; /* 8233/35 with 6 channel support */ - unsigned volume: 1; - - unsigned locked_rate : 1; - - int mixer_vol; /* 8233/35 volume - not yet implemented */ - - struct mutex syscall_mutex; - struct mutex open_mutex; - - /* The 8233/8235 have 4 DX audio channels, two record and - one six channel out. We bind ch_in to DX 1, ch_out to multichannel - and ch_fm to DX 2. DX 3 and REC0/REC1 are unused at the - moment */ - - struct via_channel ch_in; - struct via_channel ch_out; - struct via_channel ch_fm; - -#ifdef CONFIG_MIDI_VIA82CXXX - void *midi_devc; - struct address_info midi_info; -#endif -}; - - -/* number of cards, used for assigning unique numbers to cards */ -static unsigned via_num_cards; - - - -/**************************************************************** - * - * prototypes - * - * - */ - -static int via_init_one (struct pci_dev *dev, const struct pci_device_id *id); -static void __devexit via_remove_one (struct pci_dev *pdev); - -static ssize_t via_dsp_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos); -static ssize_t via_dsp_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos); -static unsigned int via_dsp_poll(struct file *file, struct poll_table_struct *wait); -static int via_dsp_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg); -static int via_dsp_open (struct inode *inode, struct file *file); -static int via_dsp_release(struct inode *inode, struct file *file); -static int via_dsp_mmap(struct file *file, struct vm_area_struct *vma); - -static u16 via_ac97_read_reg (struct ac97_codec *codec, u8 reg); -static void via_ac97_write_reg (struct ac97_codec *codec, u8 reg, u16 value); -static u8 via_ac97_wait_idle (struct via_info *card); - -static void via_chan_free (struct via_info *card, struct via_channel *chan); -static void via_chan_clear (struct via_info *card, struct via_channel *chan); -static void via_chan_pcm_fmt (struct via_channel *chan, int reset); -static void via_chan_buffer_free (struct via_info *card, struct via_channel *chan); - - -/**************************************************************** - * - * Various data the driver needs - * - * - */ - - -static struct pci_device_id via_pci_tbl[] = { - { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, - { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_5, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1}, - { 0, } -}; -MODULE_DEVICE_TABLE(pci,via_pci_tbl); - - -static struct pci_driver via_driver = { - .name = VIA_MODULE_NAME, - .id_table = via_pci_tbl, - .probe = via_init_one, - .remove = __devexit_p(via_remove_one), -}; - - -/**************************************************************** - * - * Low-level base 0 register read/write helpers - * - * - */ - -/** - * via_chan_stop - Terminate DMA on specified PCM channel - * @iobase: PCI base address for SGD channel registers - * - * Terminate scatter-gather DMA operation for given - * channel (derived from @iobase), if DMA is active. - * - * Note that @iobase is not the PCI base address, - * but the PCI base address plus an offset to - * one of three PCM channels supported by the chip. - * - */ - -static inline void via_chan_stop (long iobase) -{ - if (inb (iobase + VIA_PCM_STATUS) & VIA_SGD_ACTIVE) - outb (VIA_SGD_TERMINATE, iobase + VIA_PCM_CONTROL); -} - - -/** - * via_chan_status_clear - Clear status flags on specified DMA channel - * @iobase: PCI base address for SGD channel registers - * - * Clear any pending status flags for the given - * DMA channel (derived from @iobase), if any - * flags are asserted. - * - * Note that @iobase is not the PCI base address, - * but the PCI base address plus an offset to - * one of three PCM channels supported by the chip. - * - */ - -static inline void via_chan_status_clear (long iobase) -{ - u8 tmp = inb (iobase + VIA_PCM_STATUS); - - if (tmp != 0) - outb (tmp, iobase + VIA_PCM_STATUS); -} - - -/** - * sg_begin - Begin recording or playback on a PCM channel - * @chan: Channel for which DMA operation shall begin - * - * Start scatter-gather DMA for the given channel. - * - */ - -static inline void sg_begin (struct via_channel *chan) -{ - DPRINTK("Start with intmask %d\n", chan->intmask); - DPRINTK("About to start from %d to %d\n", - inl(chan->iobase + VIA_PCM_BLOCK_COUNT), - inb(chan->iobase + VIA_PCM_STOPRATE + 3)); - outb (VIA_SGD_START|chan->intmask, chan->iobase + VIA_PCM_CONTROL); - DPRINTK("Status is now %02X\n", inb(chan->iobase + VIA_PCM_STATUS)); - DPRINTK("Control is now %02X\n", inb(chan->iobase + VIA_PCM_CONTROL)); -} - - -static int sg_active (long iobase) -{ - u8 tmp = inb (iobase + VIA_PCM_STATUS); - if ((tmp & VIA_SGD_STOPPED) || (tmp & VIA_SGD_PAUSED)) { - printk(KERN_WARNING "via82cxxx warning: SG stopped or paused\n"); - return 0; - } - if (tmp & VIA_SGD_ACTIVE) - return 1; - return 0; -} - -static int via_sg_offset(struct via_channel *chan) -{ - return inl (chan->iobase + VIA_PCM_BLOCK_COUNT) & 0x00FFFFFF; -} - -/**************************************************************** - * - * Miscellaneous debris - * - * - */ - - -/** - * via_syscall_down - down the card-specific syscell semaphore - * @card: Private info for specified board - * @nonblock: boolean, non-zero if O_NONBLOCK is set - * - * Encapsulates standard method of acquiring the syscall sem. - * - * Returns negative errno on error, or zero for success. - */ - -static inline int via_syscall_down (struct via_info *card, int nonblock) -{ - /* Thomas Sailer: - * EAGAIN is supposed to be used if IO is pending, - * not if there is contention on some internal - * synchronization primitive which should be - * held only for a short time anyway - */ - nonblock = 0; - - if (nonblock) { - if (!mutex_trylock(&card->syscall_mutex)) - return -EAGAIN; - } else { - if (mutex_lock_interruptible(&card->syscall_mutex)) - return -ERESTARTSYS; - } - - return 0; -} - - -/** - * via_stop_everything - Stop all audio operations - * @card: Private info for specified board - * - * Stops all DMA operations and interrupts, and clear - * any pending status bits resulting from those operations. - */ - -static void via_stop_everything (struct via_info *card) -{ - u8 tmp, new_tmp; - - DPRINTK ("ENTER\n"); - - assert (card != NULL); - - /* - * terminate any existing operations on audio read/write channels - */ - via_chan_stop (card->baseaddr + VIA_BASE0_PCM_OUT_CHAN); - via_chan_stop (card->baseaddr + VIA_BASE0_PCM_IN_CHAN); - via_chan_stop (card->baseaddr + VIA_BASE0_FM_OUT_CHAN); - if(card->sixchannel) - via_chan_stop (card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN); - - /* - * clear any existing stops / flags (sanity check mainly) - */ - via_chan_status_clear (card->baseaddr + VIA_BASE0_PCM_OUT_CHAN); - via_chan_status_clear (card->baseaddr + VIA_BASE0_PCM_IN_CHAN); - via_chan_status_clear (card->baseaddr + VIA_BASE0_FM_OUT_CHAN); - if(card->sixchannel) - via_chan_status_clear (card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN); - - /* - * clear any enabled interrupt bits - */ - tmp = inb (card->baseaddr + VIA_BASE0_PCM_OUT_CHAN_TYPE); - new_tmp = tmp & ~(VIA_IRQ_ON_FLAG|VIA_IRQ_ON_EOL|VIA_RESTART_SGD_ON_EOL); - if (tmp != new_tmp) - outb (0, card->baseaddr + VIA_BASE0_PCM_OUT_CHAN_TYPE); - - tmp = inb (card->baseaddr + VIA_BASE0_PCM_IN_CHAN_TYPE); - new_tmp = tmp & ~(VIA_IRQ_ON_FLAG|VIA_IRQ_ON_EOL|VIA_RESTART_SGD_ON_EOL); - if (tmp != new_tmp) - outb (0, card->baseaddr + VIA_BASE0_PCM_IN_CHAN_TYPE); - - tmp = inb (card->baseaddr + VIA_BASE0_FM_OUT_CHAN_TYPE); - new_tmp = tmp & ~(VIA_IRQ_ON_FLAG|VIA_IRQ_ON_EOL|VIA_RESTART_SGD_ON_EOL); - if (tmp != new_tmp) - outb (0, card->baseaddr + VIA_BASE0_FM_OUT_CHAN_TYPE); - - if(card->sixchannel) - { - tmp = inb (card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN_TYPE); - new_tmp = tmp & ~(VIA_IRQ_ON_FLAG|VIA_IRQ_ON_EOL|VIA_RESTART_SGD_ON_EOL); - if (tmp != new_tmp) - outb (0, card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN_TYPE); - } - - udelay(10); - - /* - * clear any existing flags - */ - via_chan_status_clear (card->baseaddr + VIA_BASE0_PCM_OUT_CHAN); - via_chan_status_clear (card->baseaddr + VIA_BASE0_PCM_IN_CHAN); - via_chan_status_clear (card->baseaddr + VIA_BASE0_FM_OUT_CHAN); - - DPRINTK ("EXIT\n"); -} - - -/** - * via_set_rate - Set PCM rate for given channel - * @ac97: Pointer to generic codec info struct - * @chan: Private info for specified channel - * @rate: Desired PCM sample rate, in Khz - * - * Sets the PCM sample rate for a channel. - * - * Values for @rate are clamped to a range of 4000 Khz through 48000 Khz, - * due to hardware constraints. - */ - -static int via_set_rate (struct ac97_codec *ac97, - struct via_channel *chan, unsigned rate) -{ - struct via_info *card = ac97->private_data; - int rate_reg; - u32 dacp; - u32 mast_vol, phone_vol, mono_vol, pcm_vol; - u32 mute_vol = 0x8000; /* The mute volume? -- Seems to work! */ - - DPRINTK ("ENTER, rate = %d\n", rate); - - if (chan->rate == rate) - goto out; - if (card->locked_rate) { - chan->rate = 48000; - goto out; - } - - if (rate > 48000) rate = 48000; - if (rate < 4000) rate = 4000; - - rate_reg = chan->is_record ? AC97_PCM_LR_ADC_RATE : - AC97_PCM_FRONT_DAC_RATE; - - /* Save current state */ - dacp=via_ac97_read_reg(ac97, AC97_POWER_CONTROL); - mast_vol = via_ac97_read_reg(ac97, AC97_MASTER_VOL_STEREO); - mono_vol = via_ac97_read_reg(ac97, AC97_MASTER_VOL_MONO); - phone_vol = via_ac97_read_reg(ac97, AC97_HEADPHONE_VOL); - pcm_vol = via_ac97_read_reg(ac97, AC97_PCMOUT_VOL); - /* Mute - largely reduces popping */ - via_ac97_write_reg(ac97, AC97_MASTER_VOL_STEREO, mute_vol); - via_ac97_write_reg(ac97, AC97_MASTER_VOL_MONO, mute_vol); - via_ac97_write_reg(ac97, AC97_HEADPHONE_VOL, mute_vol); - via_ac97_write_reg(ac97, AC97_PCMOUT_VOL, mute_vol); - /* Power down the DAC */ - via_ac97_write_reg(ac97, AC97_POWER_CONTROL, dacp|0x0200); - - /* Set new rate */ - via_ac97_write_reg (ac97, rate_reg, rate); - - /* Power DAC back up */ - via_ac97_write_reg(ac97, AC97_POWER_CONTROL, dacp); - udelay (200); /* reduces popping */ - - /* Restore volumes */ - via_ac97_write_reg(ac97, AC97_MASTER_VOL_STEREO, mast_vol); - via_ac97_write_reg(ac97, AC97_MASTER_VOL_MONO, mono_vol); - via_ac97_write_reg(ac97, AC97_HEADPHONE_VOL, phone_vol); - via_ac97_write_reg(ac97, AC97_PCMOUT_VOL, pcm_vol); - - /* the hardware might return a value different than what we - * passed to it, so read the rate value back from hardware - * to see what we came up with - */ - chan->rate = via_ac97_read_reg (ac97, rate_reg); - - if (chan->rate == 0) { - card->locked_rate = 1; - chan->rate = 48000; - printk (KERN_WARNING PFX "Codec rate locked at 48Khz\n"); - } - -out: - DPRINTK ("EXIT, returning rate %d Hz\n", chan->rate); - return chan->rate; -} - - -/**************************************************************** - * - * Channel-specific operations - * - * - */ - - -/** - * via_chan_init_defaults - Initialize a struct via_channel - * @card: Private audio chip info - * @chan: Channel to be initialized - * - * Zero @chan, and then set all static defaults for the structure. - */ - -static void via_chan_init_defaults (struct via_info *card, struct via_channel *chan) -{ - memset (chan, 0, sizeof (*chan)); - - if(card->intmask) - chan->intmask = 0x23; /* Turn on the IRQ bits */ - - if (chan == &card->ch_out) { - chan->name = "PCM-OUT"; - if(card->sixchannel) - { - chan->iobase = card->baseaddr + VIA_BASE0_MULTI_OUT_CHAN; - chan->is_multi = 1; - DPRINTK("Using multichannel for pcm out\n"); - } - else - chan->iobase = card->baseaddr + VIA_BASE0_PCM_OUT_CHAN; - } else if (chan == &card->ch_in) { - chan->name = "PCM-IN"; - chan->iobase = card->baseaddr + VIA_BASE0_PCM_IN_CHAN; - chan->is_record = 1; - } else if (chan == &card->ch_fm) { - chan->name = "PCM-OUT-FM"; - chan->iobase = card->baseaddr + VIA_BASE0_FM_OUT_CHAN; - } else { - BUG(); - } - - init_waitqueue_head (&chan->wait); - - chan->pcm_fmt = VIA_PCM_FMT_MASK; - chan->is_enabled = 1; - - chan->frag_number = 0; - chan->frag_size = 0; - atomic_set(&chan->n_frags, 0); - atomic_set (&chan->hw_ptr, 0); -} - -/** - * via_chan_init - Initialize PCM channel - * @card: Private audio chip info - * @chan: Channel to be initialized - * - * Performs some of the preparations necessary to begin - * using a PCM channel. - * - * Currently the preparations consist of - * setting the PCM channel to a known state. - */ - - -static void via_chan_init (struct via_info *card, struct via_channel *chan) -{ - - DPRINTK ("ENTER\n"); - - /* bzero channel structure, and init members to defaults */ - via_chan_init_defaults (card, chan); - - /* stop any existing channel output */ - via_chan_clear (card, chan); - via_chan_status_clear (chan->iobase); - via_chan_pcm_fmt (chan, 1); - - DPRINTK ("EXIT\n"); -} - -/** - * via_chan_buffer_init - Initialize PCM channel buffer - * @card: Private audio chip info - * @chan: Channel to be initialized - * - * Performs some of the preparations necessary to begin - * using a PCM channel. - * - * Currently the preparations include allocating the - * scatter-gather DMA table and buffers, - * and passing the - * address of the DMA table to the hardware. - * - * Note that special care is taken when passing the - * DMA table address to hardware, because it was found - * during driver development that the hardware did not - * always "take" the address. - */ - -static int via_chan_buffer_init (struct via_info *card, struct via_channel *chan) -{ - int page, offset; - int i; - - DPRINTK ("ENTER\n"); - - - chan->intmask = 0; - if(card->intmask) - chan->intmask = 0x23; /* Turn on the IRQ bits */ - - if (chan->sgtable != NULL) { - DPRINTK ("EXIT\n"); - return 0; - } - - /* alloc DMA-able memory for scatter-gather table */ - chan->sgtable = pci_alloc_consistent (card->pdev, - (sizeof (struct via_sgd_table) * chan->frag_number), - &chan->sgt_handle); - if (!chan->sgtable) { - printk (KERN_ERR PFX "DMA table alloc fail, aborting\n"); - DPRINTK ("EXIT\n"); - return -ENOMEM; - } - - memset ((void*)chan->sgtable, 0, - (sizeof (struct via_sgd_table) * chan->frag_number)); - - /* alloc DMA-able memory for scatter-gather buffers */ - - chan->page_number = (chan->frag_number * chan->frag_size) / PAGE_SIZE + - (((chan->frag_number * chan->frag_size) % PAGE_SIZE) ? 1 : 0); - - for (i = 0; i < chan->page_number; i++) { - chan->pgtbl[i].cpuaddr = pci_alloc_consistent (card->pdev, PAGE_SIZE, - &chan->pgtbl[i].handle); - - if (!chan->pgtbl[i].cpuaddr) { - chan->page_number = i; - goto err_out_nomem; - } - -#ifndef VIA_NDEBUG - memset (chan->pgtbl[i].cpuaddr, 0xBC, chan->frag_size); -#endif - -#if 1 - DPRINTK ("dmabuf_pg #%d (h=%lx, v2p=%lx, a=%p)\n", - i, (long)chan->pgtbl[i].handle, - virt_to_phys(chan->pgtbl[i].cpuaddr), - chan->pgtbl[i].cpuaddr); -#endif - } - - for (i = 0; i < chan->frag_number; i++) { - - page = i / (PAGE_SIZE / chan->frag_size); - offset = (i % (PAGE_SIZE / chan->frag_size)) * chan->frag_size; - - chan->sgtable[i].count = cpu_to_le32 (chan->frag_size | VIA_FLAG); - chan->sgtable[i].addr = cpu_to_le32 (chan->pgtbl[page].handle + offset); - -#if 1 - DPRINTK ("dmabuf #%d (32(h)=%lx)\n", - i, - (long)chan->sgtable[i].addr); -#endif - } - - /* overwrite the last buffer information */ - chan->sgtable[chan->frag_number - 1].count = cpu_to_le32 (chan->frag_size | VIA_EOL); - - /* set location of DMA-able scatter-gather info table */ - DPRINTK ("outl (0x%X, 0x%04lX)\n", - chan->sgt_handle, chan->iobase + VIA_PCM_TABLE_ADDR); - - via_ac97_wait_idle (card); - outl (chan->sgt_handle, chan->iobase + VIA_PCM_TABLE_ADDR); - udelay (20); - via_ac97_wait_idle (card); - /* load no rate adaption, stereo 16bit, set up ring slots */ - if(card->sixchannel) - { - if(!chan->is_multi) - { - outl (0xFFFFF | (0x3 << 20) | (chan->frag_number << 24), chan->iobase + VIA_PCM_STOPRATE); - udelay (20); - via_ac97_wait_idle (card); - } - } - - DPRINTK ("inl (0x%lX) = %x\n", - chan->iobase + VIA_PCM_TABLE_ADDR, - inl(chan->iobase + VIA_PCM_TABLE_ADDR)); - - DPRINTK ("EXIT\n"); - return 0; - -err_out_nomem: - printk (KERN_ERR PFX "DMA buffer alloc fail, aborting\n"); - via_chan_buffer_free (card, chan); - DPRINTK ("EXIT\n"); - return -ENOMEM; -} - - -/** - * via_chan_free - Release a PCM channel - * @card: Private audio chip info - * @chan: Channel to be released - * - * Performs all the functions necessary to clean up - * an initialized channel. - * - * Currently these functions include disabled any - * active DMA operations, setting the PCM channel - * back to a known state, and releasing any allocated - * sound buffers. - */ - -static void via_chan_free (struct via_info *card, struct via_channel *chan) -{ - DPRINTK ("ENTER\n"); - - spin_lock_irq (&card->lock); - - /* stop any existing channel output */ - via_chan_status_clear (chan->iobase); - via_chan_stop (chan->iobase); - via_chan_status_clear (chan->iobase); - - spin_unlock_irq (&card->lock); - - synchronize_irq(card->pdev->irq); - - DPRINTK ("EXIT\n"); -} - -static void via_chan_buffer_free (struct via_info *card, struct via_channel *chan) -{ - int i; - - DPRINTK ("ENTER\n"); - - /* zero location of DMA-able scatter-gather info table */ - via_ac97_wait_idle(card); - outl (0, chan->iobase + VIA_PCM_TABLE_ADDR); - - for (i = 0; i < chan->page_number; i++) - if (chan->pgtbl[i].cpuaddr) { - pci_free_consistent (card->pdev, PAGE_SIZE, - chan->pgtbl[i].cpuaddr, - chan->pgtbl[i].handle); - chan->pgtbl[i].cpuaddr = NULL; - chan->pgtbl[i].handle = 0; - } - - chan->page_number = 0; - - if (chan->sgtable) { - pci_free_consistent (card->pdev, - (sizeof (struct via_sgd_table) * chan->frag_number), - (void*)chan->sgtable, chan->sgt_handle); - chan->sgtable = NULL; - } - - DPRINTK ("EXIT\n"); -} - - -/** - * via_chan_pcm_fmt - Update PCM channel settings - * @chan: Channel to be updated - * @reset: Boolean. If non-zero, channel will be reset - * to 8-bit mono mode. - * - * Stores the settings of the current PCM format, - * 8-bit or 16-bit, and mono/stereo, into the - * hardware settings for the specified channel. - * If @reset is non-zero, the channel is reset - * to 8-bit mono mode. Otherwise, the channel - * is set to the values stored in the channel - * information struct @chan. - */ - -static void via_chan_pcm_fmt (struct via_channel *chan, int reset) -{ - DPRINTK ("ENTER, pcm_fmt=0x%02X, reset=%s\n", - chan->pcm_fmt, reset ? "yes" : "no"); - - assert (chan != NULL); - - if (reset) - { - /* reset to 8-bit mono mode */ - chan->pcm_fmt = 0; - chan->channels = 1; - } - - /* enable interrupts on FLAG and EOL */ - chan->pcm_fmt |= VIA_CHAN_TYPE_MASK; - - /* if we are recording, enable recording fifo bit */ - if (chan->is_record) - chan->pcm_fmt |= VIA_PCM_REC_FIFO; - /* set interrupt select bits where applicable (PCM in & out channels) */ - if (!chan->is_record) - chan->pcm_fmt |= VIA_CHAN_TYPE_INT_SELECT; - - DPRINTK("SET FMT - %02x %02x\n", chan->intmask , chan->is_multi); - - if(chan->intmask) - { - u32 m; - - /* - * Channel 0x4 is up to 6 x 16bit and has to be - * programmed differently - */ - - if(chan->is_multi) - { - u8 c = 0; - - /* - * Load the type bit for num channels - * and 8/16bit - */ - - if(chan->pcm_fmt & VIA_PCM_FMT_16BIT) - c = 1 << 7; - if(chan->pcm_fmt & VIA_PCM_FMT_STEREO) - c |= (2<<4); - else - c |= (1<<4); - - outb(c, chan->iobase + VIA_PCM_TYPE); - - /* - * Set the channel steering - * Mono - * Channel 0 to slot 3 - * Channel 0 to slot 4 - * Stereo - * Channel 0 to slot 3 - * Channel 1 to slot 4 - */ - - switch(chan->channels) - { - case 1: - outl(0xFF000000 | (1<<0) | (1<<4) , chan->iobase + VIA_PCM_STOPRATE); - break; - case 2: - outl(0xFF000000 | (1<<0) | (2<<4) , chan->iobase + VIA_PCM_STOPRATE); - break; - case 4: - outl(0xFF000000 | (1<<0) | (2<<4) | (3<<8) | (4<<12), chan->iobase + VIA_PCM_STOPRATE); - break; - case 6: - outl(0xFF000000 | (1<<0) | (2<<4) | (5<<8) | (6<<12) | (3<<16) | (4<<20), chan->iobase + VIA_PCM_STOPRATE); - break; - } - } - else - { - /* - * New style, turn off channel volume - * control, set bits in the right register - */ - outb(0x0, chan->iobase + VIA_PCM_LEFTVOL); - outb(0x0, chan->iobase + VIA_PCM_RIGHTVOL); - - m = inl(chan->iobase + VIA_PCM_STOPRATE); - m &= ~(3<<20); - if(chan->pcm_fmt & VIA_PCM_FMT_STEREO) - m |= (1 << 20); - if(chan->pcm_fmt & VIA_PCM_FMT_16BIT) - m |= (1 << 21); - outl(m, chan->iobase + VIA_PCM_STOPRATE); - } - } - else - outb (chan->pcm_fmt, chan->iobase + VIA_PCM_TYPE); - - - DPRINTK ("EXIT, pcm_fmt = 0x%02X, reg = 0x%02X\n", - chan->pcm_fmt, - inb (chan->iobase + VIA_PCM_TYPE)); -} - - -/** - * via_chan_clear - Stop DMA channel operation, and reset pointers - * @card: the chip to accessed - * @chan: Channel to be cleared - * - * Call via_chan_stop to halt DMA operations, and then resets - * all software pointers which track DMA operation. - */ - -static void via_chan_clear (struct via_info *card, struct via_channel *chan) -{ - DPRINTK ("ENTER\n"); - via_chan_stop (chan->iobase); - via_chan_buffer_free(card, chan); - chan->is_active = 0; - chan->is_mapped = 0; - chan->is_enabled = 1; - chan->slop_len = 0; - chan->sw_ptr = 0; - chan->n_irqs = 0; - atomic_set (&chan->hw_ptr, 0); - DPRINTK ("EXIT\n"); -} - - -/** - * via_chan_set_speed - Set PCM sample rate for given channel - * @card: Private info for specified board - * @chan: Channel whose sample rate will be adjusted - * @val: New sample rate, in Khz - * - * Helper function for the %SNDCTL_DSP_SPEED ioctl. OSS semantics - * demand that all audio operations halt (if they are not already - * halted) when the %SNDCTL_DSP_SPEED is given. - * - * This function halts all audio operations for the given channel - * @chan, and then calls via_set_rate to set the audio hardware - * to the new rate. - */ - -static int via_chan_set_speed (struct via_info *card, - struct via_channel *chan, int val) -{ - DPRINTK ("ENTER, requested rate = %d\n", val); - - via_chan_clear (card, chan); - - val = via_set_rate (card->ac97, chan, val); - - DPRINTK ("EXIT, returning %d\n", val); - return val; -} - - -/** - * via_chan_set_fmt - Set PCM sample size for given channel - * @card: Private info for specified board - * @chan: Channel whose sample size will be adjusted - * @val: New sample size, use the %AFMT_xxx constants - * - * Helper function for the %SNDCTL_DSP_SETFMT ioctl. OSS semantics - * demand that all audio operations halt (if they are not already - * halted) when the %SNDCTL_DSP_SETFMT is given. - * - * This function halts all audio operations for the given channel - * @chan, and then calls via_chan_pcm_fmt to set the audio hardware - * to the new sample size, either 8-bit or 16-bit. - */ - -static int via_chan_set_fmt (struct via_info *card, - struct via_channel *chan, int val) -{ - DPRINTK ("ENTER, val=%s\n", - val == AFMT_U8 ? "AFMT_U8" : - val == AFMT_S16_LE ? "AFMT_S16_LE" : - "unknown"); - - via_chan_clear (card, chan); - - assert (val != AFMT_QUERY); /* this case is handled elsewhere */ - - switch (val) { - case AFMT_S16_LE: - if ((chan->pcm_fmt & VIA_PCM_FMT_16BIT) == 0) { - chan->pcm_fmt |= VIA_PCM_FMT_16BIT; - via_chan_pcm_fmt (chan, 0); - } - break; - - case AFMT_U8: - if (chan->pcm_fmt & VIA_PCM_FMT_16BIT) { - chan->pcm_fmt &= ~VIA_PCM_FMT_16BIT; - via_chan_pcm_fmt (chan, 0); - } - break; - - default: - DPRINTK ("unknown AFMT: 0x%X\n", val); - val = AFMT_S16_LE; - } - - DPRINTK ("EXIT\n"); - return val; -} - - -/** - * via_chan_set_stereo - Enable or disable stereo for a DMA channel - * @card: Private info for specified board - * @chan: Channel whose stereo setting will be adjusted - * @val: New sample size, use the %AFMT_xxx constants - * - * Helper function for the %SNDCTL_DSP_CHANNELS and %SNDCTL_DSP_STEREO ioctls. OSS semantics - * demand that all audio operations halt (if they are not already - * halted) when %SNDCTL_DSP_CHANNELS or SNDCTL_DSP_STEREO is given. - * - * This function halts all audio operations for the given channel - * @chan, and then calls via_chan_pcm_fmt to set the audio hardware - * to enable or disable stereo. - */ - -static int via_chan_set_stereo (struct via_info *card, - struct via_channel *chan, int val) -{ - DPRINTK ("ENTER, channels = %d\n", val); - - via_chan_clear (card, chan); - - switch (val) { - - /* mono */ - case 1: - chan->pcm_fmt &= ~VIA_PCM_FMT_STEREO; - chan->channels = 1; - via_chan_pcm_fmt (chan, 0); - break; - - /* stereo */ - case 2: - chan->pcm_fmt |= VIA_PCM_FMT_STEREO; - chan->channels = 2; - via_chan_pcm_fmt (chan, 0); - break; - - case 4: - case 6: - if(chan->is_multi) - { - chan->pcm_fmt |= VIA_PCM_FMT_STEREO; - chan->channels = val; - break; - } - /* unknown */ - default: - val = -EINVAL; - break; - } - - DPRINTK ("EXIT, returning %d\n", val); - return val; -} - -static int via_chan_set_buffering (struct via_info *card, - struct via_channel *chan, int val) -{ - int shift; - - DPRINTK ("ENTER\n"); - - /* in both cases the buffer cannot be changed */ - if (chan->is_active || chan->is_mapped) { - DPRINTK ("EXIT\n"); - return -EINVAL; - } - - /* called outside SETFRAGMENT */ - /* set defaults or do nothing */ - if (val < 0) { - - if (chan->frag_size && chan->frag_number) - goto out; - - DPRINTK ("\n"); - - chan->frag_size = (VIA_DEFAULT_FRAG_TIME * chan->rate * chan->channels - * ((chan->pcm_fmt & VIA_PCM_FMT_16BIT) ? 2 : 1)) / 1000 - 1; - - shift = 0; - while (chan->frag_size) { - chan->frag_size >>= 1; - shift++; - } - chan->frag_size = 1 << shift; - - chan->frag_number = (VIA_DEFAULT_BUFFER_TIME / VIA_DEFAULT_FRAG_TIME); - - DPRINTK ("setting default values %d %d\n", chan->frag_size, chan->frag_number); - } else { - chan->frag_size = 1 << (val & 0xFFFF); - chan->frag_number = (val >> 16) & 0xFFFF; - - DPRINTK ("using user values %d %d\n", chan->frag_size, chan->frag_number); - } - - /* quake3 wants frag_number to be a power of two */ - shift = 0; - while (chan->frag_number) { - chan->frag_number >>= 1; - shift++; - } - chan->frag_number = 1 << shift; - - if (chan->frag_size > VIA_MAX_FRAG_SIZE) - chan->frag_size = VIA_MAX_FRAG_SIZE; - else if (chan->frag_size < VIA_MIN_FRAG_SIZE) - chan->frag_size = VIA_MIN_FRAG_SIZE; - - if (chan->frag_number < VIA_MIN_FRAG_NUMBER) - chan->frag_number = VIA_MIN_FRAG_NUMBER; - if (chan->frag_number > VIA_MAX_FRAG_NUMBER) - chan->frag_number = VIA_MAX_FRAG_NUMBER; - - if ((chan->frag_number * chan->frag_size) / PAGE_SIZE > VIA_MAX_BUFFER_DMA_PAGES) - chan->frag_number = (VIA_MAX_BUFFER_DMA_PAGES * PAGE_SIZE) / chan->frag_size; - -out: - if (chan->is_record) - atomic_set (&chan->n_frags, 0); - else - atomic_set (&chan->n_frags, chan->frag_number); - - DPRINTK ("EXIT\n"); - - return 0; -} - -#ifdef VIA_CHAN_DUMP_BUFS -/** - * via_chan_dump_bufs - Display DMA table contents - * @chan: Channel whose DMA table will be displayed - * - * Debugging function which displays the contents of the - * scatter-gather DMA table for the given channel @chan. - */ - -static void via_chan_dump_bufs (struct via_channel *chan) -{ - int i; - - for (i = 0; i < chan->frag_number; i++) { - DPRINTK ("#%02d: addr=%x, count=%u, flag=%d, eol=%d\n", - i, chan->sgtable[i].addr, - chan->sgtable[i].count & 0x00FFFFFF, - chan->sgtable[i].count & VIA_FLAG ? 1 : 0, - chan->sgtable[i].count & VIA_EOL ? 1 : 0); - } - DPRINTK ("buf_in_use = %d, nextbuf = %d\n", - atomic_read (&chan->buf_in_use), - atomic_read (&chan->sw_ptr)); -} -#endif /* VIA_CHAN_DUMP_BUFS */ - - -/** - * via_chan_flush_frag - Flush partially-full playback buffer to hardware - * @chan: Channel whose DMA table will be flushed - * - * Flushes partially-full playback buffer to hardware. - */ - -static void via_chan_flush_frag (struct via_channel *chan) -{ - DPRINTK ("ENTER\n"); - - assert (chan->slop_len > 0); - - if (chan->sw_ptr == (chan->frag_number - 1)) - chan->sw_ptr = 0; - else - chan->sw_ptr++; - - chan->slop_len = 0; - - assert (atomic_read (&chan->n_frags) > 0); - atomic_dec (&chan->n_frags); - - DPRINTK ("EXIT\n"); -} - - - -/** - * via_chan_maybe_start - Initiate audio hardware DMA operation - * @chan: Channel whose DMA is to be started - * - * Initiate DMA operation, if the DMA engine for the given - * channel @chan is not already active. - */ - -static inline void via_chan_maybe_start (struct via_channel *chan) -{ - assert (chan->is_active == sg_active(chan->iobase)); - - DPRINTK ("MAYBE START %s\n", chan->name); - if (!chan->is_active && chan->is_enabled) { - chan->is_active = 1; - sg_begin (chan); - DPRINTK ("starting channel %s\n", chan->name); - } -} - - -/**************************************************************** - * - * Interface to ac97-codec module - * - * - */ - -/** - * via_ac97_wait_idle - Wait until AC97 codec is not busy - * @card: Private info for specified board - * - * Sleep until the AC97 codec is no longer busy. - * Returns the final value read from the SGD - * register being polled. - */ - -static u8 via_ac97_wait_idle (struct via_info *card) -{ - u8 tmp8; - int counter = VIA_COUNTER_LIMIT; - - DPRINTK ("ENTER/EXIT\n"); - - assert (card != NULL); - assert (card->pdev != NULL); - - do { - udelay (15); - - tmp8 = inb (card->baseaddr + 0x83); - } while ((tmp8 & VIA_CR83_BUSY) && (counter-- > 0)); - - if (tmp8 & VIA_CR83_BUSY) - printk (KERN_WARNING PFX "timeout waiting on AC97 codec\n"); - return tmp8; -} - - -/** - * via_ac97_read_reg - Read AC97 standard register - * @codec: Pointer to generic AC97 codec info - * @reg: Index of AC97 register to be read - * - * Read the value of a single AC97 codec register, - * as defined by the Intel AC97 specification. - * - * Defines the standard AC97 read-register operation - * required by the kernel's ac97_codec interface. - * - * Returns the 16-bit value stored in the specified - * register. - */ - -static u16 via_ac97_read_reg (struct ac97_codec *codec, u8 reg) -{ - unsigned long data; - struct via_info *card; - int counter; - - DPRINTK ("ENTER\n"); - - assert (codec != NULL); - assert (codec->private_data != NULL); - - card = codec->private_data; - - spin_lock(&card->ac97_lock); - - /* Every time we write to register 80 we cause a transaction. - The only safe way to clear the valid bit is to write it at - the same time as the command */ - data = (reg << 16) | VIA_CR80_READ | VIA_CR80_VALID; - - outl (data, card->baseaddr + VIA_BASE0_AC97_CTRL); - udelay (20); - - for (counter = VIA_COUNTER_LIMIT; counter > 0; counter--) { - udelay (1); - if ((((data = inl(card->baseaddr + VIA_BASE0_AC97_CTRL)) & - (VIA_CR80_VALID|VIA_CR80_BUSY)) == VIA_CR80_VALID)) - goto out; - } - - printk (KERN_WARNING PFX "timeout while reading AC97 codec (0x%lX)\n", data); - goto err_out; - -out: - /* Once the valid bit has become set, we must wait a complete AC97 - frame before the data has settled. */ - udelay(25); - data = (unsigned long) inl (card->baseaddr + VIA_BASE0_AC97_CTRL); - - outb (0x02, card->baseaddr + 0x83); - - if (((data & 0x007F0000) >> 16) == reg) { - DPRINTK ("EXIT, success, data=0x%lx, retval=0x%lx\n", - data, data & 0x0000FFFF); - spin_unlock(&card->ac97_lock); - return data & 0x0000FFFF; - } - - printk (KERN_WARNING "via82cxxx_audio: not our index: reg=0x%x, newreg=0x%lx\n", - reg, ((data & 0x007F0000) >> 16)); - -err_out: - spin_unlock(&card->ac97_lock); - DPRINTK ("EXIT, returning 0\n"); - return 0; -} - - -/** - * via_ac97_write_reg - Write AC97 standard register - * @codec: Pointer to generic AC97 codec info - * @reg: Index of AC97 register to be written - * @value: Value to be written to AC97 register - * - * Write the value of a single AC97 codec register, - * as defined by the Intel AC97 specification. - * - * Defines the standard AC97 write-register operation - * required by the kernel's ac97_codec interface. - */ - -static void via_ac97_write_reg (struct ac97_codec *codec, u8 reg, u16 value) -{ - u32 data; - struct via_info *card; - int counter; - - DPRINTK ("ENTER\n"); - - assert (codec != NULL); - assert (codec->private_data != NULL); - - card = codec->private_data; - - spin_lock(&card->ac97_lock); - - data = (reg << 16) + value; - outl (data, card->baseaddr + VIA_BASE0_AC97_CTRL); - udelay (10); - - for (counter = VIA_COUNTER_LIMIT; counter > 0; counter--) { - if ((inb (card->baseaddr + 0x83) & VIA_CR83_BUSY) == 0) - goto out; - - udelay (15); - } - - printk (KERN_WARNING PFX "timeout after AC97 codec write (0x%X, 0x%X)\n", reg, value); - -out: - spin_unlock(&card->ac97_lock); - DPRINTK ("EXIT\n"); -} - - -static int via_mixer_open (struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - struct via_info *card; - struct pci_dev *pdev = NULL; - struct pci_driver *drvr; - - DPRINTK ("ENTER\n"); - - while ((pdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) != NULL) { - drvr = pci_dev_driver (pdev); - if (drvr == &via_driver) { - assert (pci_get_drvdata (pdev) != NULL); - - card = pci_get_drvdata (pdev); - if (card->ac97->dev_mixer == minor) - goto match; - } - } - - DPRINTK ("EXIT, returning -ENODEV\n"); - return -ENODEV; - -match: - pci_dev_put(pdev); - file->private_data = card->ac97; - - DPRINTK ("EXIT, returning 0\n"); - return nonseekable_open(inode, file); -} - -static int via_mixer_ioctl (struct inode *inode, struct file *file, unsigned int cmd, - unsigned long arg) -{ - struct ac97_codec *codec = file->private_data; - struct via_info *card; - int nonblock = (file->f_flags & O_NONBLOCK); - int rc; - - DPRINTK ("ENTER\n"); - - assert (codec != NULL); - card = codec->private_data; - assert (card != NULL); - - rc = via_syscall_down (card, nonblock); - if (rc) goto out; - -#if 0 - /* - * Intercept volume control on 8233 and 8235 - */ - if(card->volume) - { - switch(cmd) - { - case SOUND_MIXER_READ_VOLUME: - return card->mixer_vol; - case SOUND_MIXER_WRITE_VOLUME: - { - int v; - if(get_user(v, (int *)arg)) - { - rc = -EFAULT; - goto out; - } - card->mixer_vol = v; - } - } - } -#endif - rc = codec->mixer_ioctl(codec, cmd, arg); - - mutex_unlock(&card->syscall_mutex); - -out: - DPRINTK ("EXIT, returning %d\n", rc); - return rc; -} - - -static const struct file_operations via_mixer_fops = { - .owner = THIS_MODULE, - .open = via_mixer_open, - .llseek = no_llseek, - .ioctl = via_mixer_ioctl, -}; - - -static int __devinit via_ac97_reset (struct via_info *card) -{ - struct pci_dev *pdev = card->pdev; - u8 tmp8; - u16 tmp16; - - DPRINTK ("ENTER\n"); - - assert (pdev != NULL); - -#ifndef NDEBUG - { - u8 r40,r41,r42,r43,r44,r48; - pci_read_config_byte (card->pdev, 0x40, &r40); - pci_read_config_byte (card->pdev, 0x41, &r41); - pci_read_config_byte (card->pdev, 0x42, &r42); - pci_read_config_byte (card->pdev, 0x43, &r43); - pci_read_config_byte (card->pdev, 0x44, &r44); - pci_read_config_byte (card->pdev, 0x48, &r48); - DPRINTK ("PCI config: %02X %02X %02X %02X %02X %02X\n", - r40,r41,r42,r43,r44,r48); - - spin_lock_irq (&card->lock); - DPRINTK ("regs==%02X %02X %02X %08X %08X %08X %08X\n", - inb (card->baseaddr + 0x00), - inb (card->baseaddr + 0x01), - inb (card->baseaddr + 0x02), - inl (card->baseaddr + 0x04), - inl (card->baseaddr + 0x0C), - inl (card->baseaddr + 0x80), - inl (card->baseaddr + 0x84)); - spin_unlock_irq (&card->lock); - - } -#endif - - /* - * Reset AC97 controller: enable, disable, enable, - * pausing after each command for good luck. Only - * do this if the codec is not ready, because it causes - * loud pops and such due to such a hard codec reset. - */ - pci_read_config_byte (pdev, VIA_ACLINK_STATUS, &tmp8); - if ((tmp8 & VIA_CR40_AC97_READY) == 0) { - pci_write_config_byte (pdev, VIA_ACLINK_CTRL, - VIA_CR41_AC97_ENABLE | - VIA_CR41_AC97_RESET | - VIA_CR41_AC97_WAKEUP); - udelay (100); - - pci_write_config_byte (pdev, VIA_ACLINK_CTRL, 0); - udelay (100); - - pci_write_config_byte (pdev, VIA_ACLINK_CTRL, - VIA_CR41_AC97_ENABLE | - VIA_CR41_PCM_ENABLE | - VIA_CR41_VRA | VIA_CR41_AC97_RESET); - udelay (100); - } - - /* Make sure VRA is enabled, in case we didn't do a - * complete codec reset, above - */ - pci_read_config_byte (pdev, VIA_ACLINK_CTRL, &tmp8); - if (((tmp8 & VIA_CR41_VRA) == 0) || - ((tmp8 & VIA_CR41_AC97_ENABLE) == 0) || - ((tmp8 & VIA_CR41_PCM_ENABLE) == 0) || - ((tmp8 & VIA_CR41_AC97_RESET) == 0)) { - pci_write_config_byte (pdev, VIA_ACLINK_CTRL, - VIA_CR41_AC97_ENABLE | - VIA_CR41_PCM_ENABLE | - VIA_CR41_VRA | VIA_CR41_AC97_RESET); - udelay (100); - } - - if(card->legacy) - { -#if 0 /* this breaks on K7M */ - /* disable legacy stuff */ - pci_write_config_byte (pdev, 0x42, 0x00); - udelay(10); -#endif - - /* route FM trap to IRQ, disable FM trap */ - pci_write_config_byte (pdev, 0x48, 0x05); - udelay(10); - } - - /* disable all codec GPI interrupts */ - outl (0, pci_resource_start (pdev, 0) + 0x8C); - - /* WARNING: this line is magic. Remove this - * and things break. */ - /* enable variable rate */ - tmp16 = via_ac97_read_reg (card->ac97, AC97_EXTENDED_STATUS); - if ((tmp16 & 1) == 0) - via_ac97_write_reg (card->ac97, AC97_EXTENDED_STATUS, tmp16 | 1); - - DPRINTK ("EXIT, returning 0\n"); - return 0; -} - - -static void via_ac97_codec_wait (struct ac97_codec *codec) -{ - assert (codec->private_data != NULL); - via_ac97_wait_idle (codec->private_data); -} - - -static int __devinit via_ac97_init (struct via_info *card) -{ - int rc; - u16 tmp16; - - DPRINTK ("ENTER\n"); - - assert (card != NULL); - - card->ac97 = ac97_alloc_codec(); - if(card->ac97 == NULL) - return -ENOMEM; - - card->ac97->private_data = card; - card->ac97->codec_read = via_ac97_read_reg; - card->ac97->codec_write = via_ac97_write_reg; - card->ac97->codec_wait = via_ac97_codec_wait; - - card->ac97->dev_mixer = register_sound_mixer (&via_mixer_fops, -1); - if (card->ac97->dev_mixer < 0) { - printk (KERN_ERR PFX "unable to register AC97 mixer, aborting\n"); - DPRINTK ("EXIT, returning -EIO\n"); - ac97_release_codec(card->ac97); - return -EIO; - } - - rc = via_ac97_reset (card); - if (rc) { - printk (KERN_ERR PFX "unable to reset AC97 codec, aborting\n"); - goto err_out; - } - - mdelay(10); - - if (ac97_probe_codec (card->ac97) == 0) { - printk (KERN_ERR PFX "unable to probe AC97 codec, aborting\n"); - rc = -EIO; - goto err_out; - } - - /* enable variable rate */ - tmp16 = via_ac97_read_reg (card->ac97, AC97_EXTENDED_STATUS); - via_ac97_write_reg (card->ac97, AC97_EXTENDED_STATUS, tmp16 | 1); - - /* - * If we cannot enable VRA, we have a locked-rate codec. - * We try again to enable VRA before assuming so, however. - */ - tmp16 = via_ac97_read_reg (card->ac97, AC97_EXTENDED_STATUS); - if ((tmp16 & 1) == 0) { - via_ac97_write_reg (card->ac97, AC97_EXTENDED_STATUS, tmp16 | 1); - tmp16 = via_ac97_read_reg (card->ac97, AC97_EXTENDED_STATUS); - if ((tmp16 & 1) == 0) { - card->locked_rate = 1; - printk (KERN_WARNING PFX "Codec rate locked at 48Khz\n"); - } - } - - DPRINTK ("EXIT, returning 0\n"); - return 0; - -err_out: - unregister_sound_mixer (card->ac97->dev_mixer); - DPRINTK ("EXIT, returning %d\n", rc); - ac97_release_codec(card->ac97); - return rc; -} - - -static void via_ac97_cleanup (struct via_info *card) -{ - DPRINTK ("ENTER\n"); - - assert (card != NULL); - assert (card->ac97->dev_mixer >= 0); - - unregister_sound_mixer (card->ac97->dev_mixer); - ac97_release_codec(card->ac97); - - DPRINTK ("EXIT\n"); -} - - - -/**************************************************************** - * - * Interrupt-related code - * - */ - -/** - * via_intr_channel - handle an interrupt for a single channel - * @card: unused - * @chan: handle interrupt for this channel - * - * This is the "meat" of the interrupt handler, - * containing the actions taken each time an interrupt - * occurs. All communication and coordination with - * userspace takes place here. - * - * Locking: inside card->lock - */ - -static void via_intr_channel (struct via_info *card, struct via_channel *chan) -{ - u8 status; - int n; - - /* check pertinent bits of status register for action bits */ - status = inb (chan->iobase) & (VIA_SGD_FLAG | VIA_SGD_EOL | VIA_SGD_STOPPED); - if (!status) - return; - - /* acknowledge any flagged bits ASAP */ - outb (status, chan->iobase); - - if (!chan->sgtable) /* XXX: temporary solution */ - return; - - /* grab current h/w ptr value */ - n = atomic_read (&chan->hw_ptr); - - /* sanity check: make sure our h/w ptr doesn't have a weird value */ - assert (n >= 0); - assert (n < chan->frag_number); - - - /* reset SGD data structure in memory to reflect a full buffer, - * and advance the h/w ptr, wrapping around to zero if needed - */ - if (n == (chan->frag_number - 1)) { - chan->sgtable[n].count = cpu_to_le32(chan->frag_size | VIA_EOL); - atomic_set (&chan->hw_ptr, 0); - } else { - chan->sgtable[n].count = cpu_to_le32(chan->frag_size | VIA_FLAG); - atomic_inc (&chan->hw_ptr); - } - - /* accounting crap for SNDCTL_DSP_GETxPTR */ - chan->n_irqs++; - chan->bytes += chan->frag_size; - /* FIXME - signed overflow is undefined */ - if (chan->bytes < 0) /* handle overflow of 31-bit value */ - chan->bytes = chan->frag_size; - /* all following checks only occur when not in mmap(2) mode */ - if (!chan->is_mapped) - { - /* If we are recording, then n_frags represents the number - * of fragments waiting to be handled by userspace. - * If we are playback, then n_frags represents the number - * of fragments remaining to be filled by userspace. - * We increment here. If we reach max number of fragments, - * this indicates an underrun/overrun. For this case under OSS, - * we stop the record/playback process. - */ - if (atomic_read (&chan->n_frags) < chan->frag_number) - atomic_inc (&chan->n_frags); - assert (atomic_read (&chan->n_frags) <= chan->frag_number); - if (atomic_read (&chan->n_frags) == chan->frag_number) { - chan->is_active = 0; - via_chan_stop (chan->iobase); - } - } - /* wake up anyone listening to see when interrupts occur */ - wake_up_all (&chan->wait); - - DPRINTK ("%s intr, status=0x%02X, hwptr=0x%lX, chan->hw_ptr=%d\n", - chan->name, status, (long) inl (chan->iobase + 0x04), - atomic_read (&chan->hw_ptr)); - - DPRINTK ("%s intr, channel n_frags == %d, missed %d\n", chan->name, - atomic_read (&chan->n_frags), missed); -} - - -static irqreturn_t via_interrupt(int irq, void *dev_id) -{ - struct via_info *card = dev_id; - u32 status32; - - /* to minimize interrupt sharing costs, we use the SGD status - * shadow register to check the status of all inputs and - * outputs with a single 32-bit bus read. If no interrupt - * conditions are flagged, we exit immediately - */ - status32 = inl (card->baseaddr + VIA_BASE0_SGD_STATUS_SHADOW); - if (!(status32 & VIA_INTR_MASK)) - { -#ifdef CONFIG_MIDI_VIA82CXXX - if (card->midi_devc) - uart401intr(irq, card->midi_devc); -#endif - return IRQ_HANDLED; - } - DPRINTK ("intr, status32 == 0x%08X\n", status32); - - /* synchronize interrupt handling under SMP. this spinlock - * goes away completely on UP - */ - spin_lock (&card->lock); - - if (status32 & VIA_INTR_OUT) - via_intr_channel (card, &card->ch_out); - if (status32 & VIA_INTR_IN) - via_intr_channel (card, &card->ch_in); - if (status32 & VIA_INTR_FM) - via_intr_channel (card, &card->ch_fm); - - spin_unlock (&card->lock); - - return IRQ_HANDLED; -} - -static irqreturn_t via_new_interrupt(int irq, void *dev_id) -{ - struct via_info *card = dev_id; - u32 status32; - - /* to minimize interrupt sharing costs, we use the SGD status - * shadow register to check the status of all inputs and - * outputs with a single 32-bit bus read. If no interrupt - * conditions are flagged, we exit immediately - */ - status32 = inl (card->baseaddr + VIA_BASE0_SGD_STATUS_SHADOW); - if (!(status32 & VIA_NEW_INTR_MASK)) - return IRQ_NONE; - /* - * goes away completely on UP - */ - spin_lock (&card->lock); - - via_intr_channel (card, &card->ch_out); - via_intr_channel (card, &card->ch_in); - via_intr_channel (card, &card->ch_fm); - - spin_unlock (&card->lock); - return IRQ_HANDLED; -} - - -/** - * via_interrupt_init - Initialize interrupt handling - * @card: Private info for specified board - * - * Obtain and reserve IRQ for using in handling audio events. - * Also, disable any IRQ-generating resources, to make sure - * we don't get interrupts before we want them. - */ - -static int via_interrupt_init (struct via_info *card) -{ - u8 tmp8; - - DPRINTK ("ENTER\n"); - - assert (card != NULL); - assert (card->pdev != NULL); - - /* check for sane IRQ number. can this ever happen? */ - if (card->pdev->irq < 2) { - printk (KERN_ERR PFX "insane IRQ %d, aborting\n", - card->pdev->irq); - DPRINTK ("EXIT, returning -EIO\n"); - return -EIO; - } - - /* VIA requires this is done */ - pci_write_config_byte(card->pdev, PCI_INTERRUPT_LINE, card->pdev->irq); - - if(card->legacy) - { - /* make sure FM irq is not routed to us */ - pci_read_config_byte (card->pdev, VIA_FM_NMI_CTRL, &tmp8); - if ((tmp8 & VIA_CR48_FM_TRAP_TO_NMI) == 0) { - tmp8 |= VIA_CR48_FM_TRAP_TO_NMI; - pci_write_config_byte (card->pdev, VIA_FM_NMI_CTRL, tmp8); - } - if (request_irq (card->pdev->irq, via_interrupt, IRQF_SHARED, VIA_MODULE_NAME, card)) { - printk (KERN_ERR PFX "unable to obtain IRQ %d, aborting\n", - card->pdev->irq); - DPRINTK ("EXIT, returning -EBUSY\n"); - return -EBUSY; - } - } - else - { - if (request_irq (card->pdev->irq, via_new_interrupt, IRQF_SHARED, VIA_MODULE_NAME, card)) { - printk (KERN_ERR PFX "unable to obtain IRQ %d, aborting\n", - card->pdev->irq); - DPRINTK ("EXIT, returning -EBUSY\n"); - return -EBUSY; - } - } - - DPRINTK ("EXIT, returning 0\n"); - return 0; -} - - -/**************************************************************** - * - * OSS DSP device - * - */ - -static const struct file_operations via_dsp_fops = { - .owner = THIS_MODULE, - .open = via_dsp_open, - .release = via_dsp_release, - .read = via_dsp_read, - .write = via_dsp_write, - .poll = via_dsp_poll, - .llseek = no_llseek, - .ioctl = via_dsp_ioctl, - .mmap = via_dsp_mmap, -}; - - -static int __devinit via_dsp_init (struct via_info *card) -{ - u8 tmp8; - - DPRINTK ("ENTER\n"); - - assert (card != NULL); - - if(card->legacy) - { - /* turn off legacy features, if not already */ - pci_read_config_byte (card->pdev, VIA_FUNC_ENABLE, &tmp8); - if (tmp8 & (VIA_CR42_SB_ENABLE | VIA_CR42_FM_ENABLE)) { - tmp8 &= ~(VIA_CR42_SB_ENABLE | VIA_CR42_FM_ENABLE); - pci_write_config_byte (card->pdev, VIA_FUNC_ENABLE, tmp8); - } - } - - via_stop_everything (card); - - card->dev_dsp = register_sound_dsp (&via_dsp_fops, -1); - if (card->dev_dsp < 0) { - DPRINTK ("EXIT, returning -ENODEV\n"); - return -ENODEV; - } - DPRINTK ("EXIT, returning 0\n"); - return 0; -} - - -static void via_dsp_cleanup (struct via_info *card) -{ - DPRINTK ("ENTER\n"); - - assert (card != NULL); - assert (card->dev_dsp >= 0); - - via_stop_everything (card); - - unregister_sound_dsp (card->dev_dsp); - - DPRINTK ("EXIT\n"); -} - - -static struct page * via_mm_nopage (struct vm_area_struct * vma, - unsigned long address, int *type) -{ - struct via_info *card = vma->vm_private_data; - struct via_channel *chan = &card->ch_out; - unsigned long max_bufs; - struct page *dmapage; - unsigned long pgoff; - int rd, wr; - - DPRINTK ("ENTER, start %lXh, ofs %lXh, pgoff %ld, addr %lXh\n", - vma->vm_start, - address - vma->vm_start, - (address - vma->vm_start) >> PAGE_SHIFT, - address); - - if (address > vma->vm_end) { - DPRINTK ("EXIT, returning NOPAGE_SIGBUS\n"); - return NOPAGE_SIGBUS; /* Disallow mremap */ - } - if (!card) { - DPRINTK ("EXIT, returning NOPAGE_SIGBUS\n"); - return NOPAGE_SIGBUS; /* Nothing allocated */ - } - - pgoff = vma->vm_pgoff + ((address - vma->vm_start) >> PAGE_SHIFT); - rd = card->ch_in.is_mapped; - wr = card->ch_out.is_mapped; - - max_bufs = chan->frag_number; - if (rd && wr) - max_bufs *= 2; - if (pgoff >= max_bufs) - return NOPAGE_SIGBUS; - - /* if full-duplex (read+write) and we have two sets of bufs, - * then the playback buffers come first, sez soundcard.c */ - if (pgoff >= chan->page_number) { - pgoff -= chan->page_number; - chan = &card->ch_in; - } else if (!wr) - chan = &card->ch_in; - - assert ((((unsigned long)chan->pgtbl[pgoff].cpuaddr) % PAGE_SIZE) == 0); - - dmapage = virt_to_page (chan->pgtbl[pgoff].cpuaddr); - DPRINTK ("EXIT, returning page %p for cpuaddr %lXh\n", - dmapage, (unsigned long) chan->pgtbl[pgoff].cpuaddr); - get_page (dmapage); - if (type) - *type = VM_FAULT_MINOR; - return dmapage; -} - - -#ifndef VM_RESERVED -static int via_mm_swapout (struct page *page, struct file *filp) -{ - return 0; -} -#endif /* VM_RESERVED */ - - -static struct vm_operations_struct via_mm_ops = { - .nopage = via_mm_nopage, - -#ifndef VM_RESERVED - .swapout = via_mm_swapout, -#endif -}; - - -static int via_dsp_mmap(struct file *file, struct vm_area_struct *vma) -{ - struct via_info *card; - int nonblock = (file->f_flags & O_NONBLOCK); - int rc = -EINVAL, rd=0, wr=0; - unsigned long max_size, size, start, offset; - - assert (file != NULL); - assert (vma != NULL); - card = file->private_data; - assert (card != NULL); - - DPRINTK ("ENTER, start %lXh, size %ld, pgoff %ld\n", - vma->vm_start, - vma->vm_end - vma->vm_start, - vma->vm_pgoff); - - max_size = 0; - if (vma->vm_flags & VM_READ) { - rd = 1; - via_chan_set_buffering(card, &card->ch_in, -1); - via_chan_buffer_init (card, &card->ch_in); - max_size += card->ch_in.page_number << PAGE_SHIFT; - } - if (vma->vm_flags & VM_WRITE) { - wr = 1; - via_chan_set_buffering(card, &card->ch_out, -1); - via_chan_buffer_init (card, &card->ch_out); - max_size += card->ch_out.page_number << PAGE_SHIFT; - } - - start = vma->vm_start; - offset = (vma->vm_pgoff << PAGE_SHIFT); - size = vma->vm_end - vma->vm_start; - - /* some basic size/offset sanity checks */ - if (size > max_size) - goto out; - if (offset > max_size - size) - goto out; - - rc = via_syscall_down (card, nonblock); - if (rc) goto out; - - vma->vm_ops = &via_mm_ops; - vma->vm_private_data = card; - -#ifdef VM_RESERVED - vma->vm_flags |= VM_RESERVED; -#endif - - if (rd) - card->ch_in.is_mapped = 1; - if (wr) - card->ch_out.is_mapped = 1; - - mutex_unlock(&card->syscall_mutex); - rc = 0; - -out: - DPRINTK ("EXIT, returning %d\n", rc); - return rc; -} - - -static ssize_t via_dsp_do_read (struct via_info *card, - char __user *userbuf, size_t count, - int nonblock) -{ - DECLARE_WAITQUEUE(wait, current); - const char __user *orig_userbuf = userbuf; - struct via_channel *chan = &card->ch_in; - size_t size; - int n, tmp; - ssize_t ret = 0; - - /* if SGD has not yet been started, start it */ - via_chan_maybe_start (chan); - -handle_one_block: - /* just to be a nice neighbor */ - /* Thomas Sailer: - * But also to ourselves, release semaphore if we do so */ - if (need_resched()) { - mutex_unlock(&card->syscall_mutex); - schedule (); - ret = via_syscall_down (card, nonblock); - if (ret) - goto out; - } - - /* grab current channel software pointer. In the case of - * recording, this is pointing to the next buffer that - * will receive data from the audio hardware. - */ - n = chan->sw_ptr; - - /* n_frags represents the number of fragments waiting - * to be copied to userland. sleep until at least - * one buffer has been read from the audio hardware. - */ - add_wait_queue(&chan->wait, &wait); - for (;;) { - __set_current_state(TASK_INTERRUPTIBLE); - tmp = atomic_read (&chan->n_frags); - assert (tmp >= 0); - assert (tmp <= chan->frag_number); - if (tmp) - break; - if (nonblock || !chan->is_active) { - ret = -EAGAIN; - break; - } - - mutex_unlock(&card->syscall_mutex); - - DPRINTK ("Sleeping on block %d\n", n); - schedule(); - - ret = via_syscall_down (card, nonblock); - if (ret) - break; - - if (signal_pending (current)) { - ret = -ERESTARTSYS; - break; - } - } - set_current_state(TASK_RUNNING); - remove_wait_queue(&chan->wait, &wait); - if (ret) - goto out; - - /* Now that we have a buffer we can read from, send - * as much as sample data possible to userspace. - */ - while ((count > 0) && (chan->slop_len < chan->frag_size)) { - size_t slop_left = chan->frag_size - chan->slop_len; - void *base = chan->pgtbl[n / (PAGE_SIZE / chan->frag_size)].cpuaddr; - unsigned ofs = (n % (PAGE_SIZE / chan->frag_size)) * chan->frag_size; - - size = (count < slop_left) ? count : slop_left; - if (copy_to_user (userbuf, - base + ofs + chan->slop_len, - size)) { - ret = -EFAULT; - goto out; - } - - count -= size; - chan->slop_len += size; - userbuf += size; - } - - /* If we didn't copy the buffer completely to userspace, - * stop now. - */ - if (chan->slop_len < chan->frag_size) - goto out; - - /* - * If we get to this point, we copied one buffer completely - * to userspace, give the buffer back to the hardware. - */ - - /* advance channel software pointer to point to - * the next buffer from which we will copy - */ - if (chan->sw_ptr == (chan->frag_number - 1)) - chan->sw_ptr = 0; - else - chan->sw_ptr++; - - /* mark one less buffer waiting to be processed */ - assert (atomic_read (&chan->n_frags) > 0); - atomic_dec (&chan->n_frags); - - /* we are at a block boundary, there is no fragment data */ - chan->slop_len = 0; - - DPRINTK ("Flushed block %u, sw_ptr now %u, n_frags now %d\n", - n, chan->sw_ptr, atomic_read (&chan->n_frags)); - - DPRINTK ("regs==%02X %02X %02X %08X %08X %08X %08X\n", - inb (card->baseaddr + 0x00), - inb (card->baseaddr + 0x01), - inb (card->baseaddr + 0x02), - inl (card->baseaddr + 0x04), - inl (card->baseaddr + 0x0C), - inl (card->baseaddr + 0x80), - inl (card->baseaddr + 0x84)); - - if (count > 0) - goto handle_one_block; - -out: - return (userbuf != orig_userbuf) ? (userbuf - orig_userbuf) : ret; -} - - -static ssize_t via_dsp_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) -{ - struct via_info *card; - int nonblock = (file->f_flags & O_NONBLOCK); - int rc; - - DPRINTK ("ENTER, file=%p, buffer=%p, count=%u, ppos=%lu\n", - file, buffer, count, ppos ? ((unsigned long)*ppos) : 0); - - assert (file != NULL); - card = file->private_data; - assert (card != NULL); - - rc = via_syscall_down (card, nonblock); - if (rc) goto out; - - if (card->ch_in.is_mapped) { - rc = -ENXIO; - goto out_up; - } - - via_chan_set_buffering(card, &card->ch_in, -1); - rc = via_chan_buffer_init (card, &card->ch_in); - - if (rc) - goto out_up; - - rc = via_dsp_do_read (card, buffer, count, nonblock); - -out_up: - mutex_unlock(&card->syscall_mutex); -out: - DPRINTK ("EXIT, returning %ld\n",(long) rc); - return rc; -} - - -static ssize_t via_dsp_do_write (struct via_info *card, - const char __user *userbuf, size_t count, - int nonblock) -{ - DECLARE_WAITQUEUE(wait, current); - const char __user *orig_userbuf = userbuf; - struct via_channel *chan = &card->ch_out; - volatile struct via_sgd_table *sgtable = chan->sgtable; - size_t size; - int n, tmp; - ssize_t ret = 0; - -handle_one_block: - /* just to be a nice neighbor */ - /* Thomas Sailer: - * But also to ourselves, release semaphore if we do so */ - if (need_resched()) { - mutex_unlock(&card->syscall_mutex); - schedule (); - ret = via_syscall_down (card, nonblock); - if (ret) - goto out; - } - - /* grab current channel fragment pointer. In the case of - * playback, this is pointing to the next fragment that - * should receive data from userland. - */ - n = chan->sw_ptr; - - /* n_frags represents the number of fragments remaining - * to be filled by userspace. Sleep until - * at least one fragment is available for our use. - */ - add_wait_queue(&chan->wait, &wait); - for (;;) { - __set_current_state(TASK_INTERRUPTIBLE); - tmp = atomic_read (&chan->n_frags); - assert (tmp >= 0); - assert (tmp <= chan->frag_number); - if (tmp) - break; - if (nonblock || !chan->is_active) { - ret = -EAGAIN; - break; - } - - mutex_unlock(&card->syscall_mutex); - - DPRINTK ("Sleeping on page %d, tmp==%d, ir==%d\n", n, tmp, chan->is_record); - schedule(); - - ret = via_syscall_down (card, nonblock); - if (ret) - break; - - if (signal_pending (current)) { - ret = -ERESTARTSYS; - break; - } - } - set_current_state(TASK_RUNNING); - remove_wait_queue(&chan->wait, &wait); - if (ret) - goto out; - - /* Now that we have at least one fragment we can write to, fill the buffer - * as much as possible with data from userspace. - */ - while ((count > 0) && (chan->slop_len < chan->frag_size)) { - size_t slop_left = chan->frag_size - chan->slop_len; - - size = (count < slop_left) ? count : slop_left; - if (copy_from_user (chan->pgtbl[n / (PAGE_SIZE / chan->frag_size)].cpuaddr + (n % (PAGE_SIZE / chan->frag_size)) * chan->frag_size + chan->slop_len, - userbuf, size)) { - ret = -EFAULT; - goto out; - } - - count -= size; - chan->slop_len += size; - userbuf += size; - } - - /* If we didn't fill up the buffer with data, stop now. - * Put a 'stop' marker in the DMA table too, to tell the - * audio hardware to stop if it gets here. - */ - if (chan->slop_len < chan->frag_size) { - sgtable[n].count = cpu_to_le32 (chan->slop_len | VIA_EOL | VIA_STOP); - goto out; - } - - /* - * If we get to this point, we have filled a buffer with - * audio data, flush the buffer to audio hardware. - */ - - /* Record the true size for the audio hardware to notice */ - if (n == (chan->frag_number - 1)) - sgtable[n].count = cpu_to_le32 (chan->frag_size | VIA_EOL); - else - sgtable[n].count = cpu_to_le32 (chan->frag_size | VIA_FLAG); - - /* advance channel software pointer to point to - * the next buffer we will fill with data - */ - if (chan->sw_ptr == (chan->frag_number - 1)) - chan->sw_ptr = 0; - else - chan->sw_ptr++; - - /* mark one less buffer as being available for userspace consumption */ - assert (atomic_read (&chan->n_frags) > 0); - atomic_dec (&chan->n_frags); - - /* we are at a block boundary, there is no fragment data */ - chan->slop_len = 0; - - /* if SGD has not yet been started, start it */ - via_chan_maybe_start (chan); - - DPRINTK ("Flushed block %u, sw_ptr now %u, n_frags now %d\n", - n, chan->sw_ptr, atomic_read (&chan->n_frags)); - - DPRINTK ("regs==S=%02X C=%02X TP=%02X BP=%08X RT=%08X SG=%08X CC=%08X SS=%08X\n", - inb (card->baseaddr + 0x00), - inb (card->baseaddr + 0x01), - inb (card->baseaddr + 0x02), - inl (card->baseaddr + 0x04), - inl (card->baseaddr + 0x08), - inl (card->baseaddr + 0x0C), - inl (card->baseaddr + 0x80), - inl (card->baseaddr + 0x84)); - - if (count > 0) - goto handle_one_block; - -out: - if (userbuf - orig_userbuf) - return userbuf - orig_userbuf; - else - return ret; -} - - -static ssize_t via_dsp_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) -{ - struct via_info *card; - ssize_t rc; - int nonblock = (file->f_flags & O_NONBLOCK); - - DPRINTK ("ENTER, file=%p, buffer=%p, count=%u, ppos=%lu\n", - file, buffer, count, ppos ? ((unsigned long)*ppos) : 0); - - assert (file != NULL); - card = file->private_data; - assert (card != NULL); - - rc = via_syscall_down (card, nonblock); - if (rc) goto out; - - if (card->ch_out.is_mapped) { - rc = -ENXIO; - goto out_up; - } - - via_chan_set_buffering(card, &card->ch_out, -1); - rc = via_chan_buffer_init (card, &card->ch_out); - - if (rc) - goto out_up; - - rc = via_dsp_do_write (card, buffer, count, nonblock); - -out_up: - mutex_unlock(&card->syscall_mutex); -out: - DPRINTK ("EXIT, returning %ld\n",(long) rc); - return rc; -} - - -static unsigned int via_dsp_poll(struct file *file, struct poll_table_struct *wait) -{ - struct via_info *card; - struct via_channel *chan; - unsigned int mask = 0; - - DPRINTK ("ENTER\n"); - - assert (file != NULL); - card = file->private_data; - assert (card != NULL); - - if (file->f_mode & FMODE_READ) { - chan = &card->ch_in; - if (sg_active (chan->iobase)) - poll_wait(file, &chan->wait, wait); - if (atomic_read (&chan->n_frags) > 0) - mask |= POLLIN | POLLRDNORM; - } - - if (file->f_mode & FMODE_WRITE) { - chan = &card->ch_out; - if (sg_active (chan->iobase)) - poll_wait(file, &chan->wait, wait); - if (atomic_read (&chan->n_frags) > 0) - mask |= POLLOUT | POLLWRNORM; - } - - DPRINTK ("EXIT, returning %u\n", mask); - return mask; -} - - -/** - * via_dsp_drain_playback - sleep until all playback samples are flushed - * @card: Private info for specified board - * @chan: Channel to drain - * @nonblock: boolean, non-zero if O_NONBLOCK is set - * - * Sleeps until all playback has been flushed to the audio - * hardware. - * - * Locking: inside card->syscall_mutex - */ - -static int via_dsp_drain_playback (struct via_info *card, - struct via_channel *chan, int nonblock) -{ - DECLARE_WAITQUEUE(wait, current); - int ret = 0; - - DPRINTK ("ENTER, nonblock = %d\n", nonblock); - - if (chan->slop_len > 0) - via_chan_flush_frag (chan); - - if (atomic_read (&chan->n_frags) == chan->frag_number) - goto out; - - via_chan_maybe_start (chan); - - add_wait_queue(&chan->wait, &wait); - for (;;) { - DPRINTK ("FRAGS %d FRAGNUM %d\n", atomic_read(&chan->n_frags), chan->frag_number); - __set_current_state(TASK_INTERRUPTIBLE); - if (atomic_read (&chan->n_frags) >= chan->frag_number) - break; - - if (nonblock) { - DPRINTK ("EXIT, returning -EAGAIN\n"); - ret = -EAGAIN; - break; - } - -#ifdef VIA_DEBUG - { - u8 r40,r41,r42,r43,r44,r48; - pci_read_config_byte (card->pdev, 0x40, &r40); - pci_read_config_byte (card->pdev, 0x41, &r41); - pci_read_config_byte (card->pdev, 0x42, &r42); - pci_read_config_byte (card->pdev, 0x43, &r43); - pci_read_config_byte (card->pdev, 0x44, &r44); - pci_read_config_byte (card->pdev, 0x48, &r48); - DPRINTK ("PCI config: %02X %02X %02X %02X %02X %02X\n", - r40,r41,r42,r43,r44,r48); - - DPRINTK ("regs==%02X %02X %02X %08X %08X %08X %08X\n", - inb (card->baseaddr + 0x00), - inb (card->baseaddr + 0x01), - inb (card->baseaddr + 0x02), - inl (card->baseaddr + 0x04), - inl (card->baseaddr + 0x0C), - inl (card->baseaddr + 0x80), - inl (card->baseaddr + 0x84)); - } - - if (!chan->is_active) - printk (KERN_ERR "sleeping but not active\n"); -#endif - - mutex_unlock(&card->syscall_mutex); - - DPRINTK ("sleeping, nbufs=%d\n", atomic_read (&chan->n_frags)); - schedule(); - - if ((ret = via_syscall_down (card, nonblock))) - break; - - if (signal_pending (current)) { - DPRINTK ("EXIT, returning -ERESTARTSYS\n"); - ret = -ERESTARTSYS; - break; - } - } - set_current_state(TASK_RUNNING); - remove_wait_queue(&chan->wait, &wait); - -#ifdef VIA_DEBUG - { - u8 r40,r41,r42,r43,r44,r48; - pci_read_config_byte (card->pdev, 0x40, &r40); - pci_read_config_byte (card->pdev, 0x41, &r41); - pci_read_config_byte (card->pdev, 0x42, &r42); - pci_read_config_byte (card->pdev, 0x43, &r43); - pci_read_config_byte (card->pdev, 0x44, &r44); - pci_read_config_byte (card->pdev, 0x48, &r48); - DPRINTK ("PCI config: %02X %02X %02X %02X %02X %02X\n", - r40,r41,r42,r43,r44,r48); - - DPRINTK ("regs==%02X %02X %02X %08X %08X %08X %08X\n", - inb (card->baseaddr + 0x00), - inb (card->baseaddr + 0x01), - inb (card->baseaddr + 0x02), - inl (card->baseaddr + 0x04), - inl (card->baseaddr + 0x0C), - inl (card->baseaddr + 0x80), - inl (card->baseaddr + 0x84)); - - DPRINTK ("final nbufs=%d\n", atomic_read (&chan->n_frags)); - } -#endif - -out: - DPRINTK ("EXIT, returning %d\n", ret); - return ret; -} - - -/** - * via_dsp_ioctl_space - get information about channel buffering - * @card: Private info for specified board - * @chan: pointer to channel-specific info - * @arg: user buffer for returned information - * - * Handles SNDCTL_DSP_GETISPACE and SNDCTL_DSP_GETOSPACE. - * - * Locking: inside card->syscall_mutex - */ - -static int via_dsp_ioctl_space (struct via_info *card, - struct via_channel *chan, - void __user *arg) -{ - audio_buf_info info; - - via_chan_set_buffering(card, chan, -1); - - info.fragstotal = chan->frag_number; - info.fragsize = chan->frag_size; - - /* number of full fragments we can read/write without blocking */ - info.fragments = atomic_read (&chan->n_frags); - - if ((chan->slop_len % chan->frag_size > 0) && (info.fragments > 0)) - info.fragments--; - - /* number of bytes that can be read or written immediately - * without blocking. - */ - info.bytes = (info.fragments * chan->frag_size); - if (chan->slop_len % chan->frag_size > 0) - info.bytes += chan->frag_size - (chan->slop_len % chan->frag_size); - - DPRINTK ("EXIT, returning fragstotal=%d, fragsize=%d, fragments=%d, bytes=%d\n", - info.fragstotal, - info.fragsize, - info.fragments, - info.bytes); - - return copy_to_user (arg, &info, sizeof (info))?-EFAULT:0; -} - - -/** - * via_dsp_ioctl_ptr - get information about hardware buffer ptr - * @card: Private info for specified board - * @chan: pointer to channel-specific info - * @arg: user buffer for returned information - * - * Handles SNDCTL_DSP_GETIPTR and SNDCTL_DSP_GETOPTR. - * - * Locking: inside card->syscall_mutex - */ - -static int via_dsp_ioctl_ptr (struct via_info *card, - struct via_channel *chan, - void __user *arg) -{ - count_info info; - - spin_lock_irq (&card->lock); - - info.bytes = chan->bytes; - info.blocks = chan->n_irqs; - chan->n_irqs = 0; - - spin_unlock_irq (&card->lock); - - if (chan->is_active) { - unsigned long extra; - info.ptr = atomic_read (&chan->hw_ptr) * chan->frag_size; - extra = chan->frag_size - via_sg_offset(chan); - info.ptr += extra; - info.bytes += extra; - } else { - info.ptr = 0; - } - - DPRINTK ("EXIT, returning bytes=%d, blocks=%d, ptr=%d\n", - info.bytes, - info.blocks, - info.ptr); - - return copy_to_user (arg, &info, sizeof (info))?-EFAULT:0; -} - - -static int via_dsp_ioctl_trigger (struct via_channel *chan, int val) -{ - int enable, do_something; - - if (chan->is_record) - enable = (val & PCM_ENABLE_INPUT); - else - enable = (val & PCM_ENABLE_OUTPUT); - - if (!chan->is_enabled && enable) { - do_something = 1; - } else if (chan->is_enabled && !enable) { - do_something = -1; - } else { - do_something = 0; - } - - DPRINTK ("enable=%d, do_something=%d\n", - enable, do_something); - - if (chan->is_active && do_something) - return -EINVAL; - - if (do_something == 1) { - chan->is_enabled = 1; - via_chan_maybe_start (chan); - DPRINTK ("Triggering input\n"); - } - - else if (do_something == -1) { - chan->is_enabled = 0; - DPRINTK ("Setup input trigger\n"); - } - - return 0; -} - - -static int via_dsp_ioctl (struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - int rc, rd=0, wr=0, val=0; - struct via_info *card; - struct via_channel *chan; - int nonblock = (file->f_flags & O_NONBLOCK); - int __user *ip = (int __user *)arg; - void __user *p = (void __user *)arg; - - assert (file != NULL); - card = file->private_data; - assert (card != NULL); - - if (file->f_mode & FMODE_WRITE) - wr = 1; - if (file->f_mode & FMODE_READ) - rd = 1; - - rc = via_syscall_down (card, nonblock); - if (rc) - return rc; - rc = -EINVAL; - - switch (cmd) { - - /* OSS API version. XXX unverified */ - case OSS_GETVERSION: - DPRINTK ("ioctl OSS_GETVERSION, EXIT, returning SOUND_VERSION\n"); - rc = put_user (SOUND_VERSION, ip); - break; - - /* list of supported PCM data formats */ - case SNDCTL_DSP_GETFMTS: - DPRINTK ("DSP_GETFMTS, EXIT, returning AFMT U8|S16_LE\n"); - rc = put_user (AFMT_U8 | AFMT_S16_LE, ip); - break; - - /* query or set current channel's PCM data format */ - case SNDCTL_DSP_SETFMT: - if (get_user(val, ip)) { - rc = -EFAULT; - break; - } - DPRINTK ("DSP_SETFMT, val==%d\n", val); - if (val != AFMT_QUERY) { - rc = 0; - - if (rd) - rc = via_chan_set_fmt (card, &card->ch_in, val); - - if (rc >= 0 && wr) - rc = via_chan_set_fmt (card, &card->ch_out, val); - - if (rc < 0) - break; - - val = rc; - } else { - if ((rd && (card->ch_in.pcm_fmt & VIA_PCM_FMT_16BIT)) || - (wr && (card->ch_out.pcm_fmt & VIA_PCM_FMT_16BIT))) - val = AFMT_S16_LE; - else - val = AFMT_U8; - } - DPRINTK ("SETFMT EXIT, returning %d\n", val); - rc = put_user (val, ip); - break; - - /* query or set number of channels (1=mono, 2=stereo, 4/6 for multichannel) */ - case SNDCTL_DSP_CHANNELS: - if (get_user(val, ip)) { - rc = -EFAULT; - break; - } - DPRINTK ("DSP_CHANNELS, val==%d\n", val); - if (val != 0) { - rc = 0; - - if (rd) - rc = via_chan_set_stereo (card, &card->ch_in, val); - - if (rc >= 0 && wr) - rc = via_chan_set_stereo (card, &card->ch_out, val); - - if (rc < 0) - break; - - val = rc; - } else { - if (rd) - val = card->ch_in.channels; - else - val = card->ch_out.channels; - } - DPRINTK ("CHANNELS EXIT, returning %d\n", val); - rc = put_user (val, ip); - break; - - /* enable (val is not zero) or disable (val == 0) stereo */ - case SNDCTL_DSP_STEREO: - if (get_user(val, ip)) { - rc = -EFAULT; - break; - } - DPRINTK ("DSP_STEREO, val==%d\n", val); - rc = 0; - - if (rd) - rc = via_chan_set_stereo (card, &card->ch_in, val ? 2 : 1); - if (rc >= 0 && wr) - rc = via_chan_set_stereo (card, &card->ch_out, val ? 2 : 1); - - if (rc < 0) - break; - - val = rc - 1; - - DPRINTK ("STEREO EXIT, returning %d\n", val); - rc = put_user(val, ip); - break; - - /* query or set sampling rate */ - case SNDCTL_DSP_SPEED: - if (get_user(val, ip)) { - rc = -EFAULT; - break; - } - DPRINTK ("DSP_SPEED, val==%d\n", val); - if (val < 0) { - rc = -EINVAL; - break; - } - if (val > 0) { - rc = 0; - - if (rd) - rc = via_chan_set_speed (card, &card->ch_in, val); - if (rc >= 0 && wr) - rc = via_chan_set_speed (card, &card->ch_out, val); - - if (rc < 0) - break; - - val = rc; - } else { - if (rd) - val = card->ch_in.rate; - else if (wr) - val = card->ch_out.rate; - else - val = 0; - } - DPRINTK ("SPEED EXIT, returning %d\n", val); - rc = put_user (val, ip); - break; - - /* wait until all buffers have been played, and then stop device */ - case SNDCTL_DSP_SYNC: - DPRINTK ("DSP_SYNC\n"); - rc = 0; - if (wr) { - DPRINTK ("SYNC EXIT (after calling via_dsp_drain_playback)\n"); - rc = via_dsp_drain_playback (card, &card->ch_out, nonblock); - } - break; - - /* stop recording/playback immediately */ - case SNDCTL_DSP_RESET: - DPRINTK ("DSP_RESET\n"); - if (rd) { - via_chan_clear (card, &card->ch_in); - card->ch_in.frag_number = 0; - card->ch_in.frag_size = 0; - atomic_set(&card->ch_in.n_frags, 0); - } - - if (wr) { - via_chan_clear (card, &card->ch_out); - card->ch_out.frag_number = 0; - card->ch_out.frag_size = 0; - atomic_set(&card->ch_out.n_frags, 0); - } - - rc = 0; - break; - - case SNDCTL_DSP_NONBLOCK: - file->f_flags |= O_NONBLOCK; - rc = 0; - break; - - /* obtain bitmask of device capabilities, such as mmap, full duplex, etc. */ - case SNDCTL_DSP_GETCAPS: - DPRINTK ("DSP_GETCAPS\n"); - rc = put_user(VIA_DSP_CAP, ip); - break; - - /* obtain buffer fragment size */ - case SNDCTL_DSP_GETBLKSIZE: - DPRINTK ("DSP_GETBLKSIZE\n"); - - if (rd) { - via_chan_set_buffering(card, &card->ch_in, -1); - rc = put_user(card->ch_in.frag_size, ip); - } else if (wr) { - via_chan_set_buffering(card, &card->ch_out, -1); - rc = put_user(card->ch_out.frag_size, ip); - } - break; - - /* obtain information about input buffering */ - case SNDCTL_DSP_GETISPACE: - DPRINTK ("DSP_GETISPACE\n"); - if (rd) - rc = via_dsp_ioctl_space (card, &card->ch_in, p); - break; - - /* obtain information about output buffering */ - case SNDCTL_DSP_GETOSPACE: - DPRINTK ("DSP_GETOSPACE\n"); - if (wr) - rc = via_dsp_ioctl_space (card, &card->ch_out, p); - break; - - /* obtain information about input hardware pointer */ - case SNDCTL_DSP_GETIPTR: - DPRINTK ("DSP_GETIPTR\n"); - if (rd) - rc = via_dsp_ioctl_ptr (card, &card->ch_in, p); - break; - - /* obtain information about output hardware pointer */ - case SNDCTL_DSP_GETOPTR: - DPRINTK ("DSP_GETOPTR\n"); - if (wr) - rc = via_dsp_ioctl_ptr (card, &card->ch_out, p); - break; - - /* return number of bytes remaining to be played by DMA engine */ - case SNDCTL_DSP_GETODELAY: - { - DPRINTK ("DSP_GETODELAY\n"); - - chan = &card->ch_out; - - if (!wr) - break; - - if (chan->is_active) { - - val = chan->frag_number - atomic_read (&chan->n_frags); - - assert(val >= 0); - - if (val > 0) { - val *= chan->frag_size; - val -= chan->frag_size - via_sg_offset(chan); - } - val += chan->slop_len % chan->frag_size; - } else - val = 0; - - assert (val <= (chan->frag_size * chan->frag_number)); - - DPRINTK ("GETODELAY EXIT, val = %d bytes\n", val); - rc = put_user (val, ip); - break; - } - - /* handle the quick-start of a channel, - * or the notification that a quick-start will - * occur in the future - */ - case SNDCTL_DSP_SETTRIGGER: - if (get_user(val, ip)) { - rc = -EFAULT; - break; - } - DPRINTK ("DSP_SETTRIGGER, rd=%d, wr=%d, act=%d/%d, en=%d/%d\n", - rd, wr, card->ch_in.is_active, card->ch_out.is_active, - card->ch_in.is_enabled, card->ch_out.is_enabled); - - rc = 0; - - if (rd) - rc = via_dsp_ioctl_trigger (&card->ch_in, val); - - if (!rc && wr) - rc = via_dsp_ioctl_trigger (&card->ch_out, val); - - break; - - case SNDCTL_DSP_GETTRIGGER: - val = 0; - if ((file->f_mode & FMODE_READ) && card->ch_in.is_enabled) - val |= PCM_ENABLE_INPUT; - if ((file->f_mode & FMODE_WRITE) && card->ch_out.is_enabled) - val |= PCM_ENABLE_OUTPUT; - rc = put_user(val, ip); - break; - - /* Enable full duplex. Since we do this as soon as we are opened - * with O_RDWR, this is mainly a no-op that always returns success. - */ - case SNDCTL_DSP_SETDUPLEX: - DPRINTK ("DSP_SETDUPLEX\n"); - if (!rd || !wr) - break; - rc = 0; - break; - - /* set fragment size. implemented as a successful no-op for now */ - case SNDCTL_DSP_SETFRAGMENT: - if (get_user(val, ip)) { - rc = -EFAULT; - break; - } - DPRINTK ("DSP_SETFRAGMENT, val==%d\n", val); - - if (rd) - rc = via_chan_set_buffering(card, &card->ch_in, val); - - if (wr) - rc = via_chan_set_buffering(card, &card->ch_out, val); - - DPRINTK ("SNDCTL_DSP_SETFRAGMENT (fragshift==0x%04X (%d), maxfrags==0x%04X (%d))\n", - val & 0xFFFF, - val & 0xFFFF, - (val >> 16) & 0xFFFF, - (val >> 16) & 0xFFFF); - - rc = 0; - break; - - /* inform device of an upcoming pause in input (or output). */ - case SNDCTL_DSP_POST: - DPRINTK ("DSP_POST\n"); - if (wr) { - if (card->ch_out.slop_len > 0) - via_chan_flush_frag (&card->ch_out); - via_chan_maybe_start (&card->ch_out); - } - - rc = 0; - break; - - /* not implemented */ - default: - DPRINTK ("unhandled ioctl, cmd==%u, arg==%p\n", - cmd, p); - break; - } - - mutex_unlock(&card->syscall_mutex); - DPRINTK ("EXIT, returning %d\n", rc); - return rc; -} - - -static int via_dsp_open (struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - struct via_info *card; - struct pci_dev *pdev = NULL; - struct via_channel *chan; - struct pci_driver *drvr; - int nonblock = (file->f_flags & O_NONBLOCK); - - DPRINTK ("ENTER, minor=%d, file->f_mode=0x%x\n", minor, file->f_mode); - - if (!(file->f_mode & (FMODE_READ | FMODE_WRITE))) { - DPRINTK ("EXIT, returning -EINVAL\n"); - return -EINVAL; - } - - card = NULL; - while ((pdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) != NULL) { - drvr = pci_dev_driver (pdev); - if (drvr == &via_driver) { - assert (pci_get_drvdata (pdev) != NULL); - - card = pci_get_drvdata (pdev); - DPRINTK ("dev_dsp = %d, minor = %d, assn = %d\n", - card->dev_dsp, minor, - (card->dev_dsp ^ minor) & ~0xf); - - if (((card->dev_dsp ^ minor) & ~0xf) == 0) - goto match; - } - } - - DPRINTK ("no matching %s found\n", card ? "minor" : "driver"); - return -ENODEV; - -match: - pci_dev_put(pdev); - if (nonblock) { - if (!mutex_trylock(&card->open_mutex)) { - DPRINTK ("EXIT, returning -EAGAIN\n"); - return -EAGAIN; - } - } else { - if (mutex_lock_interruptible(&card->open_mutex)) { - DPRINTK ("EXIT, returning -ERESTARTSYS\n"); - return -ERESTARTSYS; - } - } - - file->private_data = card; - DPRINTK ("file->f_mode == 0x%x\n", file->f_mode); - - /* handle input from analog source */ - if (file->f_mode & FMODE_READ) { - chan = &card->ch_in; - - via_chan_init (card, chan); - - /* why is this forced to 16-bit stereo in all drivers? */ - chan->pcm_fmt = VIA_PCM_FMT_16BIT | VIA_PCM_FMT_STEREO; - chan->channels = 2; - - // TO DO - use FIFO: via_capture_fifo(card, 1); - via_chan_pcm_fmt (chan, 0); - via_set_rate (card->ac97, chan, 44100); - } - - /* handle output to analog source */ - if (file->f_mode & FMODE_WRITE) { - chan = &card->ch_out; - - via_chan_init (card, chan); - - if (file->f_mode & FMODE_READ) { - /* if in duplex mode make the recording and playback channels - have the same settings */ - chan->pcm_fmt = VIA_PCM_FMT_16BIT | VIA_PCM_FMT_STEREO; - chan->channels = 2; - via_chan_pcm_fmt (chan, 0); - via_set_rate (card->ac97, chan, 44100); - } else { - if ((minor & 0xf) == SND_DEV_DSP16) { - chan->pcm_fmt = VIA_PCM_FMT_16BIT; - via_chan_pcm_fmt (chan, 0); - via_set_rate (card->ac97, chan, 44100); - } else { - via_chan_pcm_fmt (chan, 1); - via_set_rate (card->ac97, chan, 8000); - } - } - } - - DPRINTK ("EXIT, returning 0\n"); - return nonseekable_open(inode, file); -} - - -static int via_dsp_release(struct inode *inode, struct file *file) -{ - struct via_info *card; - int nonblock = (file->f_flags & O_NONBLOCK); - int rc; - - DPRINTK ("ENTER\n"); - - assert (file != NULL); - card = file->private_data; - assert (card != NULL); - - rc = via_syscall_down (card, nonblock); - if (rc) { - DPRINTK ("EXIT (syscall_down error), rc=%d\n", rc); - return rc; - } - - if (file->f_mode & FMODE_WRITE) { - rc = via_dsp_drain_playback (card, &card->ch_out, nonblock); - if (rc && rc != -ERESTARTSYS) /* Nobody needs to know about ^C */ - printk (KERN_DEBUG "via_audio: ignoring drain playback error %d\n", rc); - - via_chan_free (card, &card->ch_out); - via_chan_buffer_free(card, &card->ch_out); - } - - if (file->f_mode & FMODE_READ) { - via_chan_free (card, &card->ch_in); - via_chan_buffer_free (card, &card->ch_in); - } - - mutex_unlock(&card->syscall_mutex); - mutex_unlock(&card->open_mutex); - - DPRINTK ("EXIT, returning 0\n"); - return 0; -} - - -/**************************************************************** - * - * Chip setup and kernel registration - * - * - */ - -static int __devinit via_init_one (struct pci_dev *pdev, const struct pci_device_id *id) -{ -#ifdef CONFIG_MIDI_VIA82CXXX - u8 r42; -#endif - int rc; - struct via_info *card; - static int printed_version; - - DPRINTK ("ENTER\n"); - - if (printed_version++ == 0) - printk (KERN_INFO "Via 686a/8233/8235 audio driver " VIA_VERSION "\n"); - - rc = pci_enable_device (pdev); - if (rc) - goto err_out; - - rc = pci_request_regions (pdev, "via82cxxx_audio"); - if (rc) - goto err_out_disable; - - rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); - if (rc) - goto err_out_res; - rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); - if (rc) - goto err_out_res; - - card = kmalloc (sizeof (*card), GFP_KERNEL); - if (!card) { - printk (KERN_ERR PFX "out of memory, aborting\n"); - rc = -ENOMEM; - goto err_out_res; - } - - pci_set_drvdata (pdev, card); - - memset (card, 0, sizeof (*card)); - card->pdev = pdev; - card->baseaddr = pci_resource_start (pdev, 0); - card->card_num = via_num_cards++; - spin_lock_init (&card->lock); - spin_lock_init (&card->ac97_lock); - mutex_init(&card->syscall_mutex); - mutex_init(&card->open_mutex); - - /* we must init these now, in case the intr handler needs them */ - via_chan_init_defaults (card, &card->ch_out); - via_chan_init_defaults (card, &card->ch_in); - via_chan_init_defaults (card, &card->ch_fm); - - /* if BAR 2 is present, chip is Rev H or later, - * which means it has a few extra features */ - if (pci_resource_start (pdev, 2) > 0) - card->rev_h = 1; - - /* Overkill for now, but more flexible done right */ - - card->intmask = id->driver_data; - card->legacy = !card->intmask; - card->sixchannel = id->driver_data; - - if(card->sixchannel) - printk(KERN_INFO PFX "Six channel audio available\n"); - if (pdev->irq < 1) { - printk (KERN_ERR PFX "invalid PCI IRQ %d, aborting\n", pdev->irq); - rc = -ENODEV; - goto err_out_kfree; - } - - if (!(pci_resource_flags (pdev, 0) & IORESOURCE_IO)) { - printk (KERN_ERR PFX "unable to locate I/O resources, aborting\n"); - rc = -ENODEV; - goto err_out_kfree; - } - - pci_set_master(pdev); - - /* - * init AC97 mixer and codec - */ - rc = via_ac97_init (card); - if (rc) { - printk (KERN_ERR PFX "AC97 init failed, aborting\n"); - goto err_out_kfree; - } - - /* - * init DSP device - */ - rc = via_dsp_init (card); - if (rc) { - printk (KERN_ERR PFX "DSP device init failed, aborting\n"); - goto err_out_have_mixer; - } - - /* - * init and turn on interrupts, as the last thing we do - */ - rc = via_interrupt_init (card); - if (rc) { - printk (KERN_ERR PFX "interrupt init failed, aborting\n"); - goto err_out_have_dsp; - } - - printk (KERN_INFO PFX "board #%d at 0x%04lX, IRQ %d\n", - card->card_num + 1, card->baseaddr, pdev->irq); - -#ifdef CONFIG_MIDI_VIA82CXXX - /* Disable by default */ - card->midi_info.io_base = 0; - - if(card->legacy) - { - pci_read_config_byte (pdev, 0x42, &r42); - /* Disable MIDI interrupt */ - pci_write_config_byte (pdev, 0x42, r42 | VIA_CR42_MIDI_IRQMASK); - if (r42 & VIA_CR42_MIDI_ENABLE) - { - if (r42 & VIA_CR42_MIDI_PNP) /* Address selected by iobase 2 - not tested */ - card->midi_info.io_base = pci_resource_start (pdev, 2); - else /* Address selected by byte 0x43 */ - { - u8 r43; - pci_read_config_byte (pdev, 0x43, &r43); - card->midi_info.io_base = 0x300 + ((r43 & 0x0c) << 2); - } - - card->midi_info.irq = -pdev->irq; - if (probe_uart401(& card->midi_info, THIS_MODULE)) - { - card->midi_devc=midi_devs[card->midi_info.slots[4]]->devc; - pci_write_config_byte(pdev, 0x42, r42 & ~VIA_CR42_MIDI_IRQMASK); - printk("Enabled Via MIDI\n"); - } - } - } -#endif - - DPRINTK ("EXIT, returning 0\n"); - return 0; - -err_out_have_dsp: - via_dsp_cleanup (card); - -err_out_have_mixer: - via_ac97_cleanup (card); - -err_out_kfree: -#ifndef VIA_NDEBUG - memset (card, OSS_POISON_FREE, sizeof (*card)); /* poison memory */ -#endif - kfree (card); - -err_out_res: - pci_release_regions (pdev); - -err_out_disable: - pci_disable_device (pdev); - -err_out: - pci_set_drvdata (pdev, NULL); - DPRINTK ("EXIT - returning %d\n", rc); - return rc; -} - - -static void __devexit via_remove_one (struct pci_dev *pdev) -{ - struct via_info *card; - - DPRINTK ("ENTER\n"); - - assert (pdev != NULL); - card = pci_get_drvdata (pdev); - assert (card != NULL); - -#ifdef CONFIG_MIDI_VIA82CXXX - if (card->midi_info.io_base) - unload_uart401(&card->midi_info); -#endif - - free_irq (card->pdev->irq, card); - via_dsp_cleanup (card); - via_ac97_cleanup (card); - -#ifndef VIA_NDEBUG - memset (card, OSS_POISON_FREE, sizeof (*card)); /* poison memory */ -#endif - kfree (card); - - pci_set_drvdata (pdev, NULL); - - pci_release_regions (pdev); - pci_disable_device (pdev); - pci_set_power_state (pdev, 3); /* ...zzzzzz */ - - DPRINTK ("EXIT\n"); - return; -} - - -/**************************************************************** - * - * Driver initialization and cleanup - * - * - */ - -static int __init init_via82cxxx_audio(void) -{ - int rc; - - DPRINTK ("ENTER\n"); - - rc = pci_register_driver (&via_driver); - if (rc) { - DPRINTK ("EXIT, returning %d\n", rc); - return rc; - } - - DPRINTK ("EXIT, returning 0\n"); - return 0; -} - - -static void __exit cleanup_via82cxxx_audio(void) -{ - DPRINTK ("ENTER\n"); - - pci_unregister_driver (&via_driver); - - DPRINTK ("EXIT\n"); -} - - -module_init(init_via82cxxx_audio); -module_exit(cleanup_via82cxxx_audio); - -MODULE_AUTHOR("Jeff Garzik"); -MODULE_DESCRIPTION("DSP audio and mixer driver for Via 82Cxxx audio devices"); -MODULE_LICENSE("GPL"); - |