/* * azt3328.c - driver for Aztech AZF3328 based soundcards (e.g. PCI168). * Copyright (C) 2002, 2005 - 2008 by Andreas Mohr <andi AT lisas.de> * * Framework borrowed from Bart Hartgers's als4000.c. * Driver developed on PCI168 AP(W) version (PCI rev. 10, subsystem ID 1801), * found in a Fujitsu-Siemens PC ("Cordant", aluminum case). * Other versions are: * PCI168 A(W), sub ID 1800 * PCI168 A/AP, sub ID 8000 * Please give me feedback in case you try my driver with one of these!! * * GPL LICENSE * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * NOTES * Since Aztech does not provide any chipset documentation, * even on repeated request to various addresses, * and the answer that was finally given was negative * (and I was stupid enough to manage to get hold of a PCI168 soundcard * in the first place >:-P}), * I was forced to base this driver on reverse engineering * (3 weeks' worth of evenings filled with driver work). * (and no, I did NOT go the easy way: to pick up a SB PCI128 for 9 Euros) * * It is quite likely that the AZF3328 chip is the PCI cousin of the * AZF3318 ("azt1020 pnp", "MM Pro 16") ISA chip, given very similar specs. * * The AZF3328 chip (note: AZF3328, *not* AZT3328, that's just the driver name * for compatibility reasons) from Azfin (joint-venture of Aztech and Fincitec, * Fincitec acquired by National Semiconductor in 2002, together with the * Fincitec-related company ARSmikro) has the following features: * * - compatibility & compliance: * - Microsoft PC 97 ("PC 97 Hardware Design Guide", * http://www.microsoft.com/whdc/archive/pcguides.mspx) * - Microsoft PC 98 Baseline Audio * - MPU401 UART * - Sound Blaster Emulation (DOS Box) * - builtin AC97 conformant codec (SNR over 80dB) * Note that "conformant" != "compliant"!! this chip's mixer register layout * *differs* from the standard AC97 layout: * they chose to not implement the headphone register (which is not a * problem since it's merely optional), yet when doing this, they committed * the grave sin of letting other registers follow immediately instead of * keeping a headphone dummy register, thereby shifting the mixer register * addresses illegally. So far unfortunately it looks like the very flexible * ALSA AC97 support is still not enough to easily compensate for such a * grave layout violation despite all tweaks and quirks mechanisms it offers. * - builtin genuine OPL3 - verified to work fine, 20080506 * - full duplex 16bit playback/record at independent sampling rate * - MPU401 (+ legacy address support, claimed by one official spec sheet) * FIXME: how to enable legacy addr?? * - game port (legacy address support) * - builtin DirectInput support, helps reduce CPU overhead (interrupt-driven * features supported). - See common term "Digital Enhanced Game Port"... * (probably DirectInput 3.0 spec - confirm) * - builtin 3D enhancement (said to be YAMAHA Ymersion) * - built-in General DirectX timer having a 20 bits counter * with 1us resolution (see below!) * - I2S serial output port for external DAC * - supports 33MHz PCI spec 2.1, PCI power management 1.0, compliant with ACPI * - supports hardware volume control * - single chip low cost solution (128 pin QFP) * - supports programmable Sub-vendor and Sub-system ID * required for Microsoft's logo compliance (FIXME: where?) * At least the Trident 4D Wave DX has one bit somewhere * to enable writes to PCI subsystem VID registers, that should be it. * This might easily be in extended PCI reg space, since PCI168 also has * some custom data starting at 0x80. What kind of config settings * are located in our extended PCI space anyway?? * - PCI168 AP(W) card: power amplifier with 4 Watts/channel at 4 Ohms * * Note that this driver now is actually *better* than the Windows driver, * since it additionally supports the card's 1MHz DirectX timer - just try * the following snd-seq module parameters etc.: * - options snd-seq seq_default_timer_class=2 seq_default_timer_sclass=0 * seq_default_timer_card=0 seq_client_load=1 seq_default_timer_device=0 * seq_default_timer_subdevice=0 seq_default_timer_resolution=1000000 * - "timidity -iAv -B2,8 -Os -EFreverb=0" * - "pmidi -p 128:0 jazz.mid" * * OPL3 hardware playback testing, try something like: * cat /proc/asound/hwdep * and * aconnect -o * Then use * sbiload -Dhw:x,y --opl3 /usr/share/sounds/opl3/std.o3 ......./drums.o3 * where x,y is the xx-yy number as given in hwdep. * Then try * pmidi -p a:b jazz.mid * where a:b is the client number plus 0 usually, as given by aconnect above. * Oh, and make sure to unmute the FM mixer control (doh!) * NOTE: power use during OPL3 playback is _VERY_ high (70W --> 90W!) * despite no CPU activity, possibly due to hindering ACPI idling somehow. * Shouldn't be a problem of the AZF3328 chip itself, I'd hope. * Higher PCM / FM mixer levels seem to conflict (causes crackling), * at least sometimes. Maybe even use with hardware sequencer timer above :) * adplay/adplug-utils might soon offer hardware-based OPL3 playback, too. * * Certain PCI versions of this card are susceptible to DMA traffic underruns * in some systems (resulting in sound crackling/clicking/popping), * probably because they don't have a DMA FIFO buffer or so. * Overview (PCI ID/PCI subID/PCI rev.): * - no DMA crackling on SiS735: 0x50DC/0x1801/16 * - unknown performance: 0x50DC/0x1801/10 * (well, it's not bad on an Athlon 1800 with now very optimized IRQ handler) * * Crackling happens with VIA chipsets or, in my case, an SiS735, which is * supposed to be very fast and supposed to get rid of crackling much * better than a VIA, yet ironically I still get crackling, like many other * people with the same chipset. * Possible remedies: * - use speaker (amplifier) output instead of headphone output * (in case crackling is due to overloaded output clipping) * - plug card into a different PCI slot, preferrably one that isn't shared * too much (this helps a lot, but not completely!) * - get rid of PCI VGA card, use AGP instead * - upgrade or downgrade BIOS * - fiddle with PCI latency settings (setpci -v -s BUSID latency_timer=XX) * Not too helpful. * - Disable ACPI/power management/"Auto Detect RAM/PCI Clk" in BIOS * * BUGS * - full-duplex might *still* be problematic, however a recent test was fine * - (non-bug) "Bass/Treble or 3D settings don't work" - they do get evaluated * if you set PCM output switch to "pre 3D" instead of "post 3D". * If this can't be set, then get a mixer application that Isn't Stupid (tm) * (e.g. kmix, gamix) - unfortunately several are!! * - locking is not entirely clean, especially the audio stream activity * ints --> may be racy * - an _unconnected_ secondary joystick at the gameport will be reported * to be "active" (floating values, not precisely -1) due to the way we need * to read the Digital Enhanced Game Port. Not sure whether it is fixable. * * TODO * - test MPU401 MIDI playback etc. * - add more power micro-management (disable various units of the card * as long as they're unused). However this requires more I/O ports which I * haven't figured out yet and which thus might not even exist... * The standard suspend/resume functionality could probably make use of * some improvement, too... * - figure out what all unknown port bits are responsible for * - figure out some cleverly evil scheme to possibly make ALSA AC97 code * fully accept our quite incompatible ""AC97"" mixer and thus save some * code (but I'm not too optimistic that doing this is possible at all) * - use MMIO (memory-mapped I/O)? Slightly faster access, e.g. for gameport. */ #include <asm/io.h> #include <linux/init.h> #include <linux/pci.h> #include <linux/delay.h> #include <linux/slab.h> #include <linux/gameport.h> #include <linux/moduleparam.h> #include <linux/dma-mapping.h> #include <sound/core.h> #include <sound/control.h> #include <sound/pcm.h> #include <sound/rawmidi.h> #include <sound/mpu401.h> #include <sound/opl3.h> #include <sound/initval.h> #include "azt3328.h" MODULE_AUTHOR("Andreas Mohr <andi AT lisas.de>"); MODULE_DESCRIPTION("Aztech AZF3328 (PCI168)"); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{Aztech,AZF3328}}"); #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE)) #define SUPPORT_GAMEPORT 1 #endif #define DEBUG_MISC 0 #define DEBUG_CALLS 0 #define DEBUG_MIXER 0 #define DEBUG_PLAY_REC 0 #define DEBUG_IO 0 #define DEBUG_TIMER 0 #define DEBUG_GAME 0 #define MIXER_TESTING 0 #if DEBUG_MISC #define snd_azf3328_dbgmisc(format, args...) printk(KERN_ERR format, ##args) #else #define snd_azf3328_dbgmisc(format, args...) #endif #if DEBUG_CALLS #define snd_azf3328_dbgcalls(format, args...) printk(format, ##args) #define snd_azf3328_dbgcallenter() printk(KERN_ERR "--> %s\n", __func__) #define snd_azf3328_dbgcallleave() printk(KERN_ERR "<-- %s\n", __func__) #else #define snd_azf3328_dbgcalls(format, args...) #define snd_azf3328_dbgcallenter() #define snd_azf3328_dbgcallleave() #endif #if DEBUG_MIXER #define snd_azf3328_dbgmixer(format, args...) printk(format, ##args) #else #define snd_azf3328_dbgmixer(format, args...) #endif #if DEBUG_PLAY_REC #define snd_azf3328_dbgplay(format, args...) printk(KERN_ERR format, ##args) #else #define snd_azf3328_dbgplay(format, args...) #endif #if DEBUG_MISC #define snd_azf3328_dbgtimer(format, args...) printk(KERN_ERR format, ##args) #else #define snd_azf3328_dbgtimer(format, args...) #endif #if DEBUG_GAME #define snd_azf3328_dbggame(format, args...) printk(KERN_ERR format, ##args) #else #define snd_azf3328_dbggame(format, args...) #endif static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ module_param_array(index, int, NULL, 0444); MODULE_PARM_DESC(index, "Index value for AZF3328 soundcard."); static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string for AZF3328 soundcard."); static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable AZF3328 soundcard."); static int seqtimer_scaling = 128; module_param(seqtimer_scaling, int, 0444); MODULE_PARM_DESC(seqtimer_scaling, "Set 1024000Hz sequencer timer scale factor (lockup danger!). Default 128."); struct snd_azf3328_audio_stream { struct snd_pcm_substream *substream; int enabled; int running; unsigned long portbase; }; enum snd_azf3328_stream_index { AZF_PLAYBACK = 0, AZF_CAPTURE = 1, }; struct snd_azf3328 { /* often-used fields towards beginning, then grouped */ unsigned long codec_io; /* usually 0xb000, size 128 */ unsigned long game_io; /* usually 0xb400, size 8 */ unsigned long mpu_io; /* usually 0xb800, size 4 */ unsigned long opl3_io; /* usually 0xbc00, size 8 */ unsigned long mixer_io; /* usually 0xc000, size 64 */ spinlock_t reg_lock; struct snd_timer *timer; struct snd_pcm *pcm; struct snd_azf3328_audio_stream audio_stream[2]; struct snd_card *card; struct snd_rawmidi *rmidi; #ifdef SUPPORT_GAMEPORT struct gameport *gameport; int axes[4]; #endif struct pci_dev *pci; int irq; /* register 0x6a is write-only, thus need to remember setting. * If we need to add more registers here, then we might try to fold this * into some transparent combined shadow register handling with * CONFIG_PM register storage below, but that's slightly difficult. */ u16 shadow_reg_codec_6AH; #ifdef CONFIG_PM /* register value containers for power management * Note: not always full I/O range preserved (just like Win driver!) */ u16 saved_regs_codec[AZF_IO_SIZE_CODEC_PM / 2]; u16 saved_regs_game [AZF_IO_SIZE_GAME_PM / 2]; u16 saved_regs_mpu [AZF_IO_SIZE_MPU_PM / 2]; u16 saved_regs_opl3 [AZF_IO_SIZE_OPL3_PM / 2]; u16 saved_regs_mixer[AZF_IO_SIZE_MIXER_PM / 2]; #endif }; static const struct pci_device_id snd_azf3328_ids[] = { { 0x122D, 0x50DC, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* PCI168/3328 */ { 0x122D, 0x80DA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* 3328 */ { 0, } }; MODULE_DEVICE_TABLE(pci, snd_azf3328_ids); static int snd_azf3328_io_reg_setb(unsigned reg, u8 mask, int do_set) { u8 prev = inb(reg), new; new = (do_set) ? (prev|mask) : (prev & ~mask); /* we need to always write the new value no matter whether it differs * or not, since some register bits don't indicate their setting */ outb(new, reg); if (new != prev) return 1; return 0; } static inline void snd_azf3328_codec_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value) { outb(value, chip->codec_io + reg); } static inline u8 snd_azf3328_codec_inb(const struct snd_azf3328 *chip, unsigned reg) { return inb(chip->codec_io + reg); } static inline void snd_azf3328_codec_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value) { outw(value, chip->codec_io + reg); } static inline u16 snd_azf3328_codec_inw(const struct snd_azf3328 *chip, unsigned reg) { return inw(chip->codec_io + reg); } static inline void snd_azf3328_codec_outl(const struct snd_azf3328 *chip, unsigned reg, u32 value) { outl(value, chip->codec_io + reg); } static inline u32 snd_azf3328_codec_inl(const struct snd_azf3328 *chip, unsigned reg) { return inl(chip->codec_io + reg); } static inline void snd_azf3328_game_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value) { outb(value, chip->game_io + reg); } static inline void snd_azf3328_game_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value) { outw(value, chip->game_io + reg); } static inline u8 snd_azf3328_game_inb(const struct snd_azf3328 *chip, unsigned reg) { return inb(chip->game_io + reg); } static inline u16 snd_azf3328_game_inw(const struct snd_azf3328 *chip, unsigned reg) { return inw(chip->game_io + reg); } static inline void snd_azf3328_mixer_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value) { outw(value, chip->mixer_io + reg); } static inline u16 snd_azf3328_mixer_inw(const struct snd_azf3328 *chip, unsigned reg) { return inw(chip->mixer_io + reg); } #define AZF_MUTE_BIT 0x80 static int snd_azf3328_mixer_set_mute(const struct snd_azf3328 *chip, unsigned reg, int do_mute ) { unsigned long portbase = chip->mixer_io + reg + 1; int updated; /* the mute bit is on the *second* (i.e. right) register of a * left/right channel setting */ updated = snd_azf3328_io_reg_setb(portbase, AZF_MUTE_BIT, do_mute); /* indicate whether it was muted before */ return (do_mute) ? !updated : updated; } static void snd_azf3328_mixer_write_volume_gradually(const struct snd_azf3328 *chip, unsigned reg, unsigned char dst_vol_left, unsigned char dst_vol_right, int chan_sel, int delay ) { unsigned long portbase = chip->mixer_io + reg; unsigned char curr_vol_left = 0, curr_vol_right = 0; int left_change = 0, right_change = 0; snd_azf3328_dbgcallenter(); if (chan_sel & SET_CHAN_LEFT) { curr_vol_left = inb(portbase + 1); /* take care of muting flag contained in left channel */ if (curr_vol_left & AZF_MUTE_BIT) dst_vol_left |= AZF_MUTE_BIT; else dst_vol_left &= ~AZF_MUTE_BIT; left_change = (curr_vol_left > dst_vol_left) ? -1 : 1; } if (chan_sel & SET_CHAN_RIGHT) { curr_vol_right = inb(portbase + 0); right_change = (curr_vol_right > dst_vol_right) ? -1 : 1; } do { if (left_change) { if (curr_vol_left != dst_vol_left) { curr_vol_left += left_change; outb(curr_vol_left, portbase + 1); } else left_change = 0; } if (right_change) { if (curr_vol_right != dst_vol_right) { curr_vol_right += right_change; /* during volume change, the right channel is crackling * somewhat more than the left channel, unfortunately. * This seems to be a hardware issue. */ outb(curr_vol_right, portbase + 0); } else right_change = 0; } if (delay) mdelay(delay); } while ((left_change) || (right_change)); snd_azf3328_dbgcallleave(); } /* * general mixer element */ struct azf3328_mixer_reg { unsigned reg; unsigned int lchan_shift, rchan_shift; unsigned int mask; unsigned int invert: 1; unsigned int stereo: 1; unsigned int enum_c: 4; }; #define COMPOSE_MIXER_REG(reg,lchan_shift,rchan_shift,mask,invert,stereo,enum_c) \ ((reg) | (lchan_shift << 8) | (rchan_shift << 12) | \ (mask << 16) | \ (invert << 24) | \ (stereo << 25) | \ (enum_c << 26)) static void snd_azf3328_mixer_reg_decode(struct azf3328_mixer_reg *r, unsigned long val) { r->reg = val & 0xff; r->lchan_shift = (val >> 8) & 0x0f; r->rchan_shift = (val >> 12) & 0x0f; r->mask = (val >> 16) & 0xff; r->invert = (val >> 24) & 1; r->stereo = (val >> 25) & 1; r->enum_c = (val >> 26) & 0x0f; } /* * mixer switches/volumes */ #define AZF3328_MIXER_SWITCH(xname, reg, shift, invert) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .info = snd_azf3328_info_mixer, \ .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \ .private_value = COMPOSE_MIXER_REG(reg, shift, 0, 0x1, invert, 0, 0), \ } #define AZF3328_MIXER_VOL_STEREO(xname, reg, mask, invert) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .info = snd_azf3328_info_mixer, \ .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \ .private_value = COMPOSE_MIXER_REG(reg, 8, 0, mask, invert, 1, 0), \ } #define AZF3328_MIXER_VOL_MONO(xname, reg, mask, is_right_chan) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .info = snd_azf3328_info_mixer, \ .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \ .private_value = COMPOSE_MIXER_REG(reg, is_right_chan ? 0 : 8, 0, mask, 1, 0, 0), \ } #define AZF3328_MIXER_VOL_SPECIAL(xname, reg, mask, shift, invert) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .info = snd_azf3328_info_mixer, \ .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \ .private_value = COMPOSE_MIXER_REG(reg, shift, 0, mask, invert, 0, 0), \ } #define AZF3328_MIXER_ENUM(xname, reg, enum_c, shift) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .info = snd_azf3328_info_mixer_enum, \ .get = snd_azf3328_get_mixer_enum, .put = snd_azf3328_put_mixer_enum, \ .private_value = COMPOSE_MIXER_REG(reg, shift, 0, 0, 0, 0, enum_c), \ } static int snd_azf3328_info_mixer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { struct azf3328_mixer_reg reg; snd_azf3328_dbgcallenter(); snd_azf3328_mixer_reg_decode(®, kcontrol->private_value); uinfo->type = reg.mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = reg.stereo + 1; uinfo->value.integer.min = 0; uinfo->value.integer.max = reg.mask; snd_azf3328_dbgcallleave(); return 0; } static int snd_azf3328_get_mixer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol); struct azf3328_mixer_reg reg; unsigned int oreg, val; snd_azf3328_dbgcallenter(); snd_azf3328_mixer_reg_decode(®, kcontrol->private_value); oreg = snd_azf3328_mixer_inw(chip, reg.reg); val = (oreg >> reg.lchan_shift) & reg.mask; if (reg.invert) val = reg.mask - val; ucontrol->value.integer.value[0] = val; if (reg.stereo) { val = (oreg >> reg.rchan_shift) & reg.mask; if (reg.invert) val = reg.mask - val; ucontrol->value.integer.value[1] = val; } snd_azf3328_dbgmixer("get: %02x is %04x -> vol %02lx|%02lx " "(shift %02d|%02d, mask %02x, inv. %d, stereo %d)\n", reg.reg, oreg, ucontrol->value.integer.value[0], ucontrol->value.integer.value[1], reg.lchan_shift, reg.rchan_shift, reg.mask, reg.invert, reg.stereo); snd_azf3328_dbgcallleave(); return 0; } static int snd_azf3328_put_mixer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol); struct azf3328_mixer_reg reg; unsigned int oreg, nreg, val; snd_azf3328_dbgcallenter(); snd_azf3328_mixer_reg_decode(®, kcontrol->private_value); oreg = snd_azf3328_mixer_inw(chip, reg.reg); val = ucontrol->value.integer.value[0] & reg.mask; if (reg.invert) val = reg.mask - val; nreg = oreg & ~(reg.mask << reg.lchan_shift); nreg |= (val << reg.lchan_shift); if (reg.stereo) { val = ucontrol->value.integer.value[1] & reg.mask; if (reg.invert) val = reg.mask - val; nreg &= ~(reg.mask << reg.rchan_shift); nreg |= (val << reg.rchan_shift); } if (reg.mask >= 0x07) /* it's a volume control, so better take care */ snd_azf3328_mixer_write_volume_gradually( chip, reg.reg, nreg >> 8, nreg & 0xff, /* just set both channels, doesn't matter */ SET_CHAN_LEFT|SET_CHAN_RIGHT, 0); else snd_azf3328_mixer_outw(chip, reg.reg, nreg); snd_azf3328_dbgmixer("put: %02x to %02lx|%02lx, " "oreg %04x; shift %02d|%02d -> nreg %04x; after: %04x\n", reg.reg, ucontrol->value.integer.value[0], ucontrol->value.integer.value[1], oreg, reg.lchan_shift, reg.rchan_shift, nreg, snd_azf3328_mixer_inw(chip, reg.reg)); snd_azf3328_dbgcallleave(); return (nreg != oreg); } static int snd_azf3328_info_mixer_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { static const char * const texts1[] = { "Mic1", "Mic2" }; static const char * const texts2[] = { "Mix", "Mic" }; static const char * const texts3[] = { "Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone" }; static const char * const texts4[] = { "pre 3D", "post 3D" }; struct azf3328_mixer_reg reg; const char * const *p = NULL; snd_azf3328_mixer_reg_decode(®, kcontrol->private_value); uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; uinfo->count = (reg.reg == IDX_MIXER_REC_SELECT) ? 2 : 1; uinfo->value.enumerated.items = reg.enum_c; if (uinfo->value.enumerated.item > reg.enum_c - 1U) uinfo->value.enumerated.item = reg.enum_c - 1U; if (reg.reg == IDX_MIXER_ADVCTL2) { switch(reg.lchan_shift) { case 8: /* modem out sel */ p = texts1; break; case 9: /* mono sel source */ p = texts2; break; case 15: /* PCM Out Path */ p = texts4; break; } } else if (reg.reg == IDX_MIXER_REC_SELECT) p = texts3; strcpy(uinfo->value.enumerated.name, p[uinfo->value.enumerated.item]); return 0; } static int snd_azf3328_get_mixer_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol); struct azf3328_mixer_reg reg; unsigned short val; snd_azf3328_mixer_reg_decode(®, kcontrol->private_value); val = snd_azf3328_mixer_inw(chip, reg.reg); if (reg.reg == IDX_MIXER_REC_SELECT) { ucontrol->value.enumerated.item[0] = (val >> 8) & (reg.enum_c - 1); ucontrol->value.enumerated.item[1] = (val >> 0) & (reg.enum_c - 1); } else ucontrol->value.enumerated.item[0] = (val >> reg.lchan_shift) & (reg.enum_c - 1); snd_azf3328_dbgmixer("get_enum: %02x is %04x -> %d|%d (shift %02d, enum_c %d)\n", reg.reg, val, ucontrol->value.enumerated.item[0], ucontrol->value.enumerated.item[1], reg.lchan_shift, reg.enum_c); return 0; } static int snd_azf3328_put_mixer_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol); struct azf3328_mixer_reg reg; unsigned int oreg, nreg, val; snd_azf3328_mixer_reg_decode(®, kcontrol->private_value); oreg = snd_azf3328_mixer_inw(chip, reg.reg); val = oreg; if (reg.reg == IDX_MIXER_REC_SELECT) { if (ucontrol->value.enumerated.item[0] > reg.enum_c - 1U || ucontrol->value.enumerated.item[1] > reg.enum_c - 1U) return -EINVAL; val = (ucontrol->value.enumerated.item[0] << 8) | (ucontrol->value.enumerated.item[1] << 0); } else { if (ucontrol->value.enumerated.item[0] > reg.enum_c - 1U) return -EINVAL; val &= ~((reg.enum_c - 1) << reg.lchan_shift); val |= (ucontrol->value.enumerated.item[0] << reg.lchan_shift); } snd_azf3328_mixer_outw(chip, reg.reg, val); nreg = val; snd_azf3328_dbgmixer("put_enum: %02x to %04x, oreg %04x\n", reg.reg, val, oreg); return (nreg != oreg); } static struct snd_kcontrol_new snd_azf3328_mixer_controls[] __devinitdata = { AZF3328_MIXER_SWITCH("Master Playback Switch", IDX_MIXER_PLAY_MASTER, 15, 1), AZF3328_MIXER_VOL_STEREO("Master Playback Volume", IDX_MIXER_PLAY_MASTER, 0x1f, 1), AZF3328_MIXER_SWITCH("PCM Playback Switch", IDX_MIXER_WAVEOUT, 15, 1), AZF3328_MIXER_VOL_STEREO("PCM Playback Volume", IDX_MIXER_WAVEOUT, 0x1f, 1), AZF3328_MIXER_SWITCH("PCM 3D Bypass Playback Switch", IDX_MIXER_ADVCTL2, 7, 1), AZF3328_MIXER_SWITCH("FM Playback Switch", IDX_MIXER_FMSYNTH, 15, 1), AZF3328_MIXER_VOL_STEREO("FM Playback Volume", IDX_MIXER_FMSYNTH, 0x1f, 1), AZF3328_MIXER_SWITCH("CD Playback Switch", IDX_MIXER_CDAUDIO, 15, 1), AZF3328_MIXER_VOL_STEREO("CD Playback Volume", IDX_MIXER_CDAUDIO, 0x1f, 1), AZF3328_MIXER_SWITCH("Capture Switch", IDX_MIXER_REC_VOLUME, 15, 1), AZF3328_MIXER_VOL_STEREO("Capture Volume", IDX_MIXER_REC_VOLUME, 0x0f, 0), AZF3328_MIXER_ENUM("Capture Source", IDX_MIXER_REC_SELECT, 8, 0), AZF3328_MIXER_SWITCH("Mic Playback Switch", IDX_MIXER_MIC, 15, 1), AZF3328_MIXER_VOL_MONO("Mic Playback Volume", IDX_MIXER_MIC, 0x1f, 1), AZF3328_MIXER_SWITCH("Mic Boost (+20dB)", IDX_MIXER_MIC, 6, 0), AZF3328_MIXER_SWITCH("Line Playback Switch", IDX_MIXER_LINEIN, 15, 1), AZF3328_MIXER_VOL_STEREO("Line Playback Volume", IDX_MIXER_LINEIN, 0x1f, 1), AZF3328_MIXER_SWITCH("PC Speaker Playback Switch", IDX_MIXER_PCBEEP, 15, 1), AZF3328_MIXER_VOL_SPECIAL("PC Speaker Playback Volume", IDX_MIXER_PCBEEP, 0x0f, 1, 1), AZF3328_MIXER_SWITCH("Video Playback Switch", IDX_MIXER_VIDEO, 15, 1), AZF3328_MIXER_VOL_STEREO("Video Playback Volume", IDX_MIXER_VIDEO, 0x1f, 1), AZF3328_MIXER_SWITCH("Aux Playback Switch", IDX_MIXER_AUX, 15, 1), AZF3328_MIXER_VOL_STEREO("Aux Playback Volume", IDX_MIXER_AUX, 0x1f, 1), AZF3328_MIXER_SWITCH("Modem Playback Switch", IDX_MIXER_MODEMOUT, 15, 1), AZF3328_MIXER_VOL_MONO("Modem Playback Volume", IDX_MIXER_MODEMOUT, 0x1f, 1), AZF3328_MIXER_SWITCH("Modem Capture Switch", IDX_MIXER_MODEMIN, 15, 1), AZF3328_MIXER_VOL_MONO("Modem Capture Volume", IDX_MIXER_MODEMIN, 0x1f, 1), AZF3328_MIXER_ENUM("Mic Select", IDX_MIXER_ADVCTL2, 2, 8), AZF3328_MIXER_ENUM("Mono Output Select", IDX_MIXER_ADVCTL2, 2, 9), AZF3328_MIXER_ENUM("PCM Output Route", IDX_MIXER_ADVCTL2, 2, 15), /* PCM Out Path, place in front since it controls *both* 3D and Bass/Treble! */ AZF3328_MIXER_VOL_SPECIAL("Tone Control - Treble", IDX_MIXER_BASSTREBLE, 0x07, 1, 0), AZF3328_MIXER_VOL_SPECIAL("Tone Control - Bass", IDX_MIXER_BASSTREBLE, 0x07, 9, 0), AZF3328_MIXER_SWITCH("3D Control - Switch", IDX_MIXER_ADVCTL2, 13, 0), AZF3328_MIXER_VOL_SPECIAL("3D Control - Width", IDX_MIXER_ADVCTL1, 0x07, 1, 0), /* "3D Width" */ AZF3328_MIXER_VOL_SPECIAL("3D Control - Depth", IDX_MIXER_ADVCTL1, 0x03, 8, 0), /* "Hifi 3D" */ #if MIXER_TESTING AZF3328_MIXER_SWITCH("0", IDX_MIXER_ADVCTL2, 0, 0), AZF3328_MIXER_SWITCH("1", IDX_MIXER_ADVCTL2, 1, 0), AZF3328_MIXER_SWITCH("2", IDX_MIXER_ADVCTL2, 2, 0), AZF3328_MIXER_SWITCH("3", IDX_MIXER_ADVCTL2, 3, 0), AZF3328_MIXER_SWITCH("4", IDX_MIXER_ADVCTL2, 4, 0), AZF3328_MIXER_SWITCH("5", IDX_MIXER_ADVCTL2, 5, 0), AZF3328_MIXER_SWITCH("6", IDX_MIXER_ADVCTL2, 6, 0), AZF3328_MIXER_SWITCH("7", IDX_MIXER_ADVCTL2, 7, 0), AZF3328_MIXER_SWITCH("8", IDX_MIXER_ADVCTL2, 8, 0), AZF3328_MIXER_SWITCH("9", IDX_MIXER_ADVCTL2, 9, 0), AZF3328_MIXER_SWITCH("10", IDX_MIXER_ADVCTL2, 10, 0), AZF3328_MIXER_SWITCH("11", IDX_MIXER_ADVCTL2, 11, 0), AZF3328_MIXER_SWITCH("12", IDX_MIXER_ADVCTL2, 12, 0), AZF3328_MIXER_SWITCH("13", IDX_MIXER_ADVCTL2, 13, 0), AZF3328_MIXER_SWITCH("14", IDX_MIXER_ADVCTL2, 14, 0), AZF3328_MIXER_SWITCH("15", IDX_MIXER_ADVCTL2, 15, 0), #endif }; static u16 __devinitdata snd_azf3328_init_values[][2] = { { IDX_MIXER_PLAY_MASTER, MIXER_MUTE_MASK|0x1f1f }, { IDX_MIXER_MODEMOUT, MIXER_MUTE_MASK|0x1f1f }, { IDX_MIXER_BASSTREBLE, 0x0000 }, { IDX_MIXER_PCBEEP, MIXER_MUTE_MASK|0x1f1f }, { IDX_MIXER_MODEMIN, MIXER_MUTE_MASK|0x1f1f }, { IDX_MIXER_MIC, MIXER_MUTE_MASK|0x001f }, { IDX_MIXER_LINEIN, MIXER_MUTE_MASK|0x1f1f }, { IDX_MIXER_CDAUDIO, MIXER_MUTE_MASK|0x1f1f }, { IDX_MIXER_VIDEO, MIXER_MUTE_MASK|0x1f1f }, { IDX_MIXER_AUX, MIXER_MUTE_MASK|0x1f1f }, { IDX_MIXER_WAVEOUT, MIXER_MUTE_MASK|0x1f1f }, { IDX_MIXER_FMSYNTH, MIXER_MUTE_MASK|0x1f1f }, { IDX_MIXER_REC_VOLUME, MIXER_MUTE_MASK|0x0707 }, }; static int __devinit snd_azf3328_mixer_new(struct snd_azf3328 *chip) { struct snd_card *card; const struct snd_kcontrol_new *sw; unsigned int idx; int err; snd_azf3328_dbgcallenter(); if (snd_BUG_ON(!chip || !chip->card)) return -EINVAL; card = chip->card; /* mixer reset */ snd_azf3328_mixer_outw(chip, IDX_MIXER_RESET, 0x0000); /* mute and zero volume channels */ for (idx = 0; idx < ARRAY_SIZE(snd_azf3328_init_values); ++idx) { snd_azf3328_mixer_outw(chip, snd_azf3328_init_values[idx][0], snd_azf3328_init_values[idx][1]); } /* add mixer controls */ sw = snd_azf3328_mixer_controls; for (idx = 0; idx < ARRAY_SIZE(snd_azf3328_mixer_controls); ++idx, ++sw) { if ((err = snd_ctl_add(chip->card, snd_ctl_new1(sw, chip))) < 0) return err; } snd_component_add(card, "AZF3328 mixer"); strcpy(card->mixername, "AZF3328 mixer"); snd_azf3328_dbgcallleave(); return 0; } static int snd_azf3328_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { int res; snd_azf3328_dbgcallenter(); res = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); snd_azf3328_dbgcallleave(); return res; } static int snd_azf3328_hw_free(struct snd_pcm_substream *substream) { snd_azf3328_dbgcallenter(); snd_pcm_lib_free_pages(substream); snd_azf3328_dbgcallleave(); return 0; } static void snd_azf3328_codec_setfmt(struct snd_azf3328 *chip, unsigned reg, enum azf_freq_t bitrate, unsigned int format_width, unsigned int channels ) { u16 val = 0xff00; unsigned long flags; snd_azf3328_dbgcallenter(); switch (bitrate) { case AZF_FREQ_4000: val |= SOUNDFORMAT_FREQ_SUSPECTED_4000; break; case AZF_FREQ_4800: val |= SOUNDFORMAT_FREQ_SUSPECTED_4800; break; case AZF_FREQ_5512: /* the AZF3328 names it "5510" for some strange reason */ val |= SOUNDFORMAT_FREQ_5510; break; case AZF_FREQ_6620: val |= SOUNDFORMAT_FREQ_6620; break; case AZF_FREQ_8000: val |= SOUNDFORMAT_FREQ_8000; break; case AZF_FREQ_9600: val |= SOUNDFORMAT_FREQ_9600; break; case AZF_FREQ_11025: val |= SOUNDFORMAT_FREQ_11025; break; case AZF_FREQ_13240: val |= SOUNDFORMAT_FREQ_SUSPECTED_13240; break; case AZF_FREQ_16000: val |= SOUNDFORMAT_FREQ_16000; break; case AZF_FREQ_22050: val |= SOUNDFORMAT_FREQ_22050; break; case AZF_FREQ_32000: val |= SOUNDFORMAT_FREQ_32000; break; default: snd_printk(KERN_WARNING "unknown bitrate %d, assuming 44.1kHz!\n", bitrate); /* fall-through */ case AZF_FREQ_44100: val |= SOUNDFORMAT_FREQ_44100; break; case AZF_FREQ_48000: val |= SOUNDFORMAT_FREQ_48000; break; case AZF_FREQ_66200: val |= SOUNDFORMAT_FREQ_SUSPECTED_66200; break; } /* val = 0xff07; 3m27.993s (65301Hz; -> 64000Hz???) hmm, 66120, 65967, 66123 */ /* val = 0xff09; 17m15.098s (13123,478Hz; -> 12000Hz???) hmm, 13237.2Hz? */ /* val = 0xff0a; 47m30.599s (4764,891Hz; -> 4800Hz???) yup, 4803Hz */ /* val = 0xff0c; 57m0.510s (4010,263Hz; -> 4000Hz???) yup, 4003Hz */ /* val = 0xff05; 5m11.556s (... -> 44100Hz) */ /* val = 0xff03; 10m21.529s (21872,463Hz; -> 22050Hz???) */ /* val = 0xff0f; 20m41.883s (10937,993Hz; -> 11025Hz???) */ /* val = 0xff0d; 41m23.135s (5523,600Hz; -> 5512Hz???) */ /* val = 0xff0e; 28m30.777s (8017Hz; -> 8000Hz???) */ if (channels == 2) val |= SOUNDFORMAT_FLAG_2CHANNELS; if (format_width == 16) val |= SOUNDFORMAT_FLAG_16BIT; spin_lock_irqsave(&chip->reg_lock, flags); /* set bitrate/format */ snd_azf3328_codec_outw(chip, reg, val); /* changing the bitrate/format settings switches off the * audio output with an annoying click in case of 8/16bit format change * (maybe shutting down DAC/ADC?), thus immediately * do some tweaking to reenable it and get rid of the clicking * (FIXME: yes, it works, but what exactly am I doing here?? :) * FIXME: does this have some side effects for full-duplex * or other dramatic side effects? */ if (reg == IDX_IO_PLAY_SOUNDFORMAT) /* only do it for playback */ snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS) | DMA_PLAY_SOMETHING1 | DMA_PLAY_SOMETHING2 | SOMETHING_ALMOST_ALWAYS_SET | DMA_EPILOGUE_SOMETHING | DMA_SOMETHING_ELSE ); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_azf3328_dbgcallleave(); } static inline void snd_azf3328_codec_setfmt_lowpower(struct snd_azf3328 *chip, unsigned reg ) { /* choose lowest frequency for low power consumption. * While this will cause louder noise due to rather coarse frequency, * it should never matter since output should always * get disabled properly when idle anyway. */ snd_azf3328_codec_setfmt(chip, reg, AZF_FREQ_4000, 8, 1); } static void snd_azf3328_codec_reg_6AH_update(struct snd_azf3328 *chip, unsigned bitmask, int enable ) { if (enable) chip->shadow_reg_codec_6AH &= ~bitmask; else chip->shadow_reg_codec_6AH |= bitmask; snd_azf3328_dbgplay("6AH_update mask 0x%04x enable %d: val 0x%04x\n", bitmask, enable, chip->shadow_reg_codec_6AH); snd_azf3328_codec_outw(chip, IDX_IO_6AH, chip->shadow_reg_codec_6AH); } static inline void snd_azf3328_codec_enable(struct snd_azf3328 *chip, int enable) { snd_azf3328_dbgplay("codec_enable %d\n", enable); /* no idea what exactly is being done here, but I strongly assume it's * PM related */ snd_azf3328_codec_reg_6AH_update( chip, IO_6A_PAUSE_PLAYBACK_BIT8, enable ); } static void snd_azf3328_codec_activity(struct snd_azf3328 *chip, enum snd_azf3328_stream_index stream_type, int enable ) { int need_change = (chip->audio_stream[stream_type].running != enable); snd_azf3328_dbgplay( "codec_activity: type %d, enable %d, need_change %d\n", stream_type, enable, need_change ); if (need_change) { enum snd_azf3328_stream_index other = (stream_type == AZF_PLAYBACK) ? AZF_CAPTURE : AZF_PLAYBACK; /* small check to prevent shutting down the other party * in case it's active */ if ((enable) || !(chip->audio_stream[other].running)) snd_azf3328_codec_enable(chip, enable); /* ...and adjust clock, too * (reduce noise and power consumption) */ if (!enable) snd_azf3328_codec_setfmt_lowpower( chip, chip->audio_stream[stream_type].portbase + IDX_IO_PLAY_SOUNDFORMAT ); } chip->audio_stream[stream_type].running = enable; } static void snd_azf3328_setdmaa(struct snd_azf3328 *chip, long unsigned int addr, unsigned int count, unsigned int size, enum snd_azf3328_stream_index stream_type ) { snd_azf3328_dbgcallenter(); if (!chip->audio_stream[stream_type].running) { /* AZF3328 uses a two buffer pointer DMA playback approach */ unsigned long flags, portbase, addr_area2; /* width 32bit (prevent overflow): */ unsigned long count_areas, count_tmp; portbase = chip->audio_stream[stream_type].portbase; count_areas = size/2; addr_area2 = addr+count_areas; count_areas--; /* max. index */ snd_azf3328_dbgplay("set DMA: buf1 %08lx[%lu], buf2 %08lx[%lu]\n", addr, count_areas, addr_area2, count_areas); /* build combined I/O buffer length word */ count_tmp = count_areas; count_areas |= (count_tmp << 16); spin_lock_irqsave(&chip->reg_lock, flags); outl(addr, portbase + IDX_IO_PLAY_DMA_START_1); outl(addr_area2, portbase + IDX_IO_PLAY_DMA_START_2); outl(count_areas, portbase + IDX_IO_PLAY_DMA_LEN_1); spin_unlock_irqrestore(&chip->reg_lock, flags); } snd_azf3328_dbgcallleave(); } static int snd_azf3328_playback_prepare(struct snd_pcm_substream *substream) { #if 0 struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; unsigned int size = snd_pcm_lib_buffer_bytes(substream); unsigned int count = snd_pcm_lib_period_bytes(substream); #endif snd_azf3328_dbgcallenter(); #if 0 snd_azf3328_codec_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels); snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, AZF_PLAYBACK); #endif snd_azf3328_dbgcallleave(); return 0; } static int snd_azf3328_capture_prepare(struct snd_pcm_substream *substream) { #if 0 struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; unsigned int size = snd_pcm_lib_buffer_bytes(substream); unsigned int count = snd_pcm_lib_period_bytes(substream); #endif snd_azf3328_dbgcallenter(); #if 0 snd_azf3328_codec_setfmt(chip, IDX_IO_REC_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels); snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, AZF_CAPTURE); #endif snd_azf3328_dbgcallleave(); return 0; } static int snd_azf3328_playback_trigger(struct snd_pcm_substream *substream, int cmd) { struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; int result = 0; unsigned int status1; int previously_muted; snd_azf3328_dbgcalls("snd_azf3328_playback_trigger cmd %d\n", cmd); switch (cmd) { case SNDRV_PCM_TRIGGER_START: snd_azf3328_dbgplay("START PLAYBACK\n"); /* mute WaveOut (avoid clicking during setup) */ previously_muted = snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1); snd_azf3328_codec_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels); spin_lock(&chip->reg_lock); /* first, remember current value: */ status1 = snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS); /* stop playback */ status1 &= ~DMA_RESUME; snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, status1); /* FIXME: clear interrupts or what??? */ snd_azf3328_codec_outw(chip, IDX_IO_PLAY_IRQTYPE, 0xffff); spin_unlock(&chip->reg_lock); snd_azf3328_setdmaa(chip, runtime->dma_addr, snd_pcm_lib_period_bytes(substream), snd_pcm_lib_buffer_bytes(substream), AZF_PLAYBACK); spin_lock(&chip->reg_lock); #ifdef WIN9X /* FIXME: enable playback/recording??? */ status1 |= DMA_PLAY_SOMETHING1 | DMA_PLAY_SOMETHING2; snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, status1); /* start playback again */ /* FIXME: what is this value (0x0010)??? */ status1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING; snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, status1); #else /* NT4 */ snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, 0x0000); snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, DMA_PLAY_SOMETHING1); snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, DMA_PLAY_SOMETHING1 | DMA_PLAY_SOMETHING2); snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, DMA_RESUME | SOMETHING_ALMOST_ALWAYS_SET | DMA_EPILOGUE_SOMETHING | DMA_SOMETHING_ELSE); #endif spin_unlock(&chip->reg_lock); snd_azf3328_codec_activity(chip, AZF_PLAYBACK, 1); /* now unmute WaveOut */ if (!previously_muted) snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0); snd_azf3328_dbgplay("STARTED PLAYBACK\n"); break; case SNDRV_PCM_TRIGGER_RESUME: snd_azf3328_dbgplay("RESUME PLAYBACK\n"); /* resume playback if we were active */ spin_lock(&chip->reg_lock); if (chip->audio_stream[AZF_PLAYBACK].running) snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS) | DMA_RESUME); spin_unlock(&chip->reg_lock); break; case SNDRV_PCM_TRIGGER_STOP: snd_azf3328_dbgplay("STOP PLAYBACK\n"); /* mute WaveOut (avoid clicking during setup) */ previously_muted = snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1); spin_lock(&chip->reg_lock); /* first, remember current value: */ status1 = snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS); /* stop playback */ status1 &= ~DMA_RESUME; snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, status1); /* hmm, is this really required? we're resetting the same bit * immediately thereafter... */ status1 |= DMA_PLAY_SOMETHING1; snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, status1); status1 &= ~DMA_PLAY_SOMETHING1; snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, status1); spin_unlock(&chip->reg_lock); snd_azf3328_codec_activity(chip, AZF_PLAYBACK, 0); /* now unmute WaveOut */ if (!previously_muted) snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0); snd_azf3328_dbgplay("STOPPED PLAYBACK\n"); break; case SNDRV_PCM_TRIGGER_SUSPEND: snd_azf3328_dbgplay("SUSPEND PLAYBACK\n"); /* make sure playback is stopped */ snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS) & ~DMA_RESUME); break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: snd_printk(KERN_ERR "FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n"); break; case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: snd_printk(KERN_ERR "FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n"); break; default: printk(KERN_ERR "FIXME: unknown trigger mode!\n"); return -EINVAL; } snd_azf3328_dbgcallleave(); return result; } /* this is just analogous to playback; I'm not quite sure whether recording * should actually be triggered like that */ static int snd_azf3328_capture_trigger(struct snd_pcm_substream *substream, int cmd) { struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; int result = 0; unsigned int status1; snd_azf3328_dbgcalls("snd_azf3328_capture_trigger cmd %d\n", cmd); switch (cmd) { case SNDRV_PCM_TRIGGER_START: snd_azf3328_dbgplay("START CAPTURE\n"); snd_azf3328_codec_setfmt(chip, IDX_IO_REC_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels); spin_lock(&chip->reg_lock); /* first, remember current value: */ status1 = snd_azf3328_codec_inw(chip, IDX_IO_REC_FLAGS); /* stop recording */ status1 &= ~DMA_RESUME; snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, status1); /* FIXME: clear interrupts or what??? */ snd_azf3328_codec_outw(chip, IDX_IO_REC_IRQTYPE, 0xffff); spin_unlock(&chip->reg_lock); snd_azf3328_setdmaa(chip, runtime->dma_addr, snd_pcm_lib_period_bytes(substream), snd_pcm_lib_buffer_bytes(substream), AZF_CAPTURE); spin_lock(&chip->reg_lock); #ifdef WIN9X /* FIXME: enable playback/recording??? */ status1 |= DMA_PLAY_SOMETHING1 | DMA_PLAY_SOMETHING2; snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, status1); /* start capture again */ /* FIXME: what is this value (0x0010)??? */ status1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING; snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, status1); #else snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, 0x0000); snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, DMA_PLAY_SOMETHING1); snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, DMA_PLAY_SOMETHING1 | DMA_PLAY_SOMETHING2); snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, DMA_RESUME | SOMETHING_ALMOST_ALWAYS_SET | DMA_EPILOGUE_SOMETHING | DMA_SOMETHING_ELSE); #endif spin_unlock(&chip->reg_lock); snd_azf3328_codec_activity(chip, AZF_CAPTURE, 1); snd_azf3328_dbgplay("STARTED CAPTURE\n"); break; case SNDRV_PCM_TRIGGER_RESUME: snd_azf3328_dbgplay("RESUME CAPTURE\n"); /* resume recording if we were active */ spin_lock(&chip->reg_lock); if (chip->audio_stream[AZF_CAPTURE].running) snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, snd_azf3328_codec_inw(chip, IDX_IO_REC_FLAGS) | DMA_RESUME); spin_unlock(&chip->reg_lock); break; case SNDRV_PCM_TRIGGER_STOP: snd_azf3328_dbgplay("STOP CAPTURE\n"); spin_lock(&chip->reg_lock); /* first, remember current value: */ status1 = snd_azf3328_codec_inw(chip, IDX_IO_REC_FLAGS); /* stop recording */ status1 &= ~DMA_RESUME; snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, status1); status1 |= DMA_PLAY_SOMETHING1; snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, status1); status1 &= ~DMA_PLAY_SOMETHING1; snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, status1); spin_unlock(&chip->reg_lock); snd_azf3328_codec_activity(chip, AZF_CAPTURE, 0); snd_azf3328_dbgplay("STOPPED CAPTURE\n"); break; case SNDRV_PCM_TRIGGER_SUSPEND: snd_azf3328_dbgplay("SUSPEND CAPTURE\n"); /* make sure recording is stopped */ snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, snd_azf3328_codec_inw(chip, IDX_IO_REC_FLAGS) & ~DMA_RESUME); break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: snd_printk(KERN_ERR "FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n"); break; case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: snd_printk(KERN_ERR "FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n"); break; default: printk(KERN_ERR "FIXME: unknown trigger mode!\n"); return -EINVAL; } snd_azf3328_dbgcallleave(); return result; } static snd_pcm_uframes_t snd_azf3328_playback_pointer(struct snd_pcm_substream *substream) { struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); unsigned long bufptr, result; snd_pcm_uframes_t frmres; #ifdef QUERY_HARDWARE bufptr = snd_azf3328_codec_inl(chip, IDX_IO_PLAY_DMA_START_1); #else bufptr = substream->runtime->dma_addr; #endif result = snd_azf3328_codec_inl(chip, IDX_IO_PLAY_DMA_CURRPOS); /* calculate offset */ result -= bufptr; frmres = bytes_to_frames( substream->runtime, result); snd_azf3328_dbgplay("PLAY @ 0x%8lx, frames %8ld\n", result, frmres); return frmres; } static snd_pcm_uframes_t snd_azf3328_capture_pointer(struct snd_pcm_substream *substream) { struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); unsigned long bufptr, result; snd_pcm_uframes_t frmres; #ifdef QUERY_HARDWARE bufptr = snd_azf3328_codec_inl(chip, IDX_IO_REC_DMA_START_1); #else bufptr = substream->runtime->dma_addr; #endif result = snd_azf3328_codec_inl(chip, IDX_IO_REC_DMA_CURRPOS); /* calculate offset */ result -= bufptr; frmres = bytes_to_frames( substream->runtime, result); snd_azf3328_dbgplay("REC @ 0x%8lx, frames %8ld\n", result, frmres); return frmres; } /******************************************************************/ #ifdef SUPPORT_GAMEPORT static inline void snd_azf3328_gameport_irq_enable(struct snd_azf3328 *chip, int enable) { snd_azf3328_io_reg_setb( chip->game_io+IDX_GAME_HWCONFIG, GAME_HWCFG_IRQ_ENABLE, enable ); } static inline void snd_azf3328_gameport_legacy_address_enable(struct snd_azf3328 *chip, int enable) { snd_azf3328_io_reg_setb( chip->game_io+IDX_GAME_HWCONFIG, GAME_HWCFG_LEGACY_ADDRESS_ENABLE, enable ); } static inline void snd_azf3328_gameport_axis_circuit_enable(struct snd_azf3328 *chip, int enable) { snd_azf3328_codec_reg_6AH_update( chip, IO_6A_SOMETHING2_GAMEPORT, enable ); } static inline void snd_azf3328_gameport_interrupt(struct snd_azf3328 *chip) { /* * skeleton handler only * (we do not want axis reading in interrupt handler - too much load!) */ snd_azf3328_dbggame("gameport irq\n"); /* this should ACK the gameport IRQ properly, hopefully. */ snd_azf3328_game_inw(chip, IDX_GAME_AXIS_VALUE); } static int snd_azf3328_gameport_open(struct gameport *gameport, int mode) { struct snd_azf3328 *chip = gameport_get_port_data(gameport); int res; snd_azf3328_dbggame("gameport_open, mode %d\n", mode); switch (mode) { case GAMEPORT_MODE_COOKED: case GAMEPORT_MODE_RAW: res = 0; break; default: res = -1; break; } snd_azf3328_gameport_axis_circuit_enable(chip, (res == 0)); return res; } static void snd_azf3328_gameport_close(struct gameport *gameport) { struct snd_azf3328 *chip = gameport_get_port_data(gameport); snd_azf3328_dbggame("gameport_close\n"); snd_azf3328_gameport_axis_circuit_enable(chip, 0); } static int snd_azf3328_gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons ) { struct snd_azf3328 *chip = gameport_get_port_data(gameport); int i; u8 val; unsigned long flags; if (snd_BUG_ON(!chip)) return 0; spin_lock_irqsave(&chip->reg_lock, flags); val = snd_azf3328_game_inb(chip, IDX_GAME_LEGACY_COMPATIBLE); *buttons = (~(val) >> 4) & 0xf; /* ok, this one is a bit dirty: cooked_read is being polled by a timer, * thus we're atomic and cannot actively wait in here * (which would be useful for us since it probably would be better * to trigger a measurement in here, then wait a short amount of * time until it's finished, then read values of _this_ measurement). * * Thus we simply resort to reading values if they're available already * and trigger the next measurement. */ val = snd_azf3328_game_inb(chip, IDX_GAME_AXES_CONFIG); if (val & GAME_AXES_SAMPLING_READY) { for (i = 0; i < 4; ++i) { /* configure the axis to read */ val = (i << 4) | 0x0f; snd_azf3328_game_outb(chip, IDX_GAME_AXES_CONFIG, val); chip->axes[i] = snd_azf3328_game_inw( chip, IDX_GAME_AXIS_VALUE ); } } /* trigger next axes sampling, to be evaluated the next time we * enter this function */ /* for some very, very strange reason we cannot enable * Measurement Ready monitoring for all axes here, * at least not when only one joystick connected */ val = 0x03; /* we're able to monitor axes 1 and 2 only */ snd_azf3328_game_outb(chip, IDX_GAME_AXES_CONFIG, val); snd_azf3328_game_outw(chip, IDX_GAME_AXIS_VALUE, 0xffff); spin_unlock_irqrestore(&chip->reg_lock, flags); for (i = 0; i < 4; i++) { axes[i] = chip->axes[i]; if (axes[i] == 0xffff) axes[i] = -1; } snd_azf3328_dbggame("cooked_read: axes %d %d %d %d buttons %d\n", axes[0], axes[1], axes[2], axes[3], *buttons ); return 0; } static int __devinit snd_azf3328_gameport(struct snd_azf3328 *chip, int dev) { struct gameport *gp; chip->gameport = gp = gameport_allocate_port(); if (!gp) { printk(KERN_ERR "azt3328: cannot alloc memory for gameport\n"); return -ENOMEM; } gameport_set_name(gp, "AZF3328 Gameport"); gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci)); gameport_set_dev_parent(gp, &chip->pci->dev); gp->io = chip->game_io; gameport_set_port_data(gp, chip); gp->open = snd_azf3328_gameport_open; gp->close = snd_azf3328_gameport_close; gp->fuzz = 16; /* seems ok */ gp->cooked_read = snd_azf3328_gameport_cooked_read; /* DISABLE legacy address: we don't need it! */ snd_azf3328_gameport_legacy_address_enable(chip, 0); snd_azf3328_gameport_axis_circuit_enable(chip, 0); gameport_register_port(chip->gameport); return 0; } static void snd_azf3328_gameport_free(struct snd_azf3328 *chip) { if (chip->gameport) { gameport_unregister_port(chip->gameport); chip->gameport = NULL; } snd_azf3328_gameport_irq_enable(chip, 0); } #else static inline int snd_azf3328_gameport(struct snd_azf3328 *chip, int dev) { return -ENOSYS; } static inline void snd_azf3328_gameport_free(struct snd_azf3328 *chip) { } static inline void snd_azf3328_gameport_interrupt(struct snd_azf3328 *chip) { printk(KERN_WARNING "huh, game port IRQ occurred!?\n"); } #endif /* SUPPORT_GAMEPORT */ /******************************************************************/ static inline void snd_azf3328_irq_log_unknown_type(u8 which) { snd_azf3328_dbgplay( "azt3328: unknown IRQ type (%x) occurred, please report!\n", which ); } static irqreturn_t snd_azf3328_interrupt(int irq, void *dev_id) { struct snd_azf3328 *chip = dev_id; u8 status, which; #if DEBUG_PLAY_REC static unsigned long irq_count; #endif status = snd_azf3328_codec_inb(chip, IDX_IO_IRQSTATUS); /* fast path out, to ease interrupt sharing */ if (!(status & (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_GAMEPORT|IRQ_MPU401|IRQ_TIMER) )) return IRQ_NONE; /* must be interrupt for another device */ snd_azf3328_dbgplay( "irq_count %ld! IDX_IO_PLAY_FLAGS %04x, " "IDX_IO_PLAY_IRQTYPE %04x, IDX_IO_IRQSTATUS %04x\n", irq_count++ /* debug-only */, snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS), snd_azf3328_codec_inw(chip, IDX_IO_PLAY_IRQTYPE), status ); if (status & IRQ_TIMER) { /* snd_azf3328_dbgplay("timer %ld\n", snd_azf3328_codec_inl(chip, IDX_IO_TIMER_VALUE) & TIMER_VALUE_MASK ); */ if (chip->timer) snd_timer_interrupt(chip->timer, chip->timer->sticks); /* ACK timer */ spin_lock(&chip->reg_lock); snd_azf3328_codec_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x07); spin_unlock(&chip->reg_lock); snd_azf3328_dbgplay("azt3328: timer IRQ\n"); } if (status & IRQ_PLAYBACK) { spin_lock(&chip->reg_lock); which = snd_azf3328_codec_inb(chip, IDX_IO_PLAY_IRQTYPE); /* ack all IRQ types immediately */ snd_azf3328_codec_outb(chip, IDX_IO_PLAY_IRQTYPE, which); spin_unlock(&chip->reg_lock); if (chip->pcm && chip->audio_stream[AZF_PLAYBACK].substream) { snd_pcm_period_elapsed( chip->audio_stream[AZF_PLAYBACK].substream ); snd_azf3328_dbgplay("PLAY period done (#%x), @ %x\n", which, snd_azf3328_codec_inl( chip, IDX_IO_PLAY_DMA_CURRPOS ) ); } else printk(KERN_WARNING "azt3328: irq handler problem!\n"); if (which & IRQ_PLAY_SOMETHING) snd_azf3328_irq_log_unknown_type(which); } if (status & IRQ_RECORDING) { spin_lock(&chip->reg_lock); which = snd_azf3328_codec_inb(chip, IDX_IO_REC_IRQTYPE); /* ack all IRQ types immediately */ snd_azf3328_codec_outb(chip, IDX_IO_REC_IRQTYPE, which); spin_unlock(&chip->reg_lock); if (chip->pcm && chip->audio_stream[AZF_CAPTURE].substream) { snd_pcm_period_elapsed( chip->audio_stream[AZF_CAPTURE].substream ); snd_azf3328_dbgplay("REC period done (#%x), @ %x\n", which, snd_azf3328_codec_inl( chip, IDX_IO_REC_DMA_CURRPOS ) ); } else printk(KERN_WARNING "azt3328: irq handler problem!\n"); if (which & IRQ_REC_SOMETHING) snd_azf3328_irq_log_unknown_type(which); } if (status & IRQ_GAMEPORT) snd_azf3328_gameport_interrupt(chip); /* MPU401 has less critical IRQ requirements * than timer and playback/recording, right? */ if (status & IRQ_MPU401) { snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data); /* hmm, do we have to ack the IRQ here somehow? * If so, then I don't know how... */ snd_azf3328_dbgplay("azt3328: MPU401 IRQ\n"); } return IRQ_HANDLED; } /*****************************************************************/ static const struct snd_pcm_hardware snd_azf3328_playback = { /* FIXME!! Correct? */ .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP_VALID, .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, .rates = SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_KNOT, .rate_min = AZF_FREQ_4000, .rate_max = AZF_FREQ_66200, .channels_min = 1, .channels_max = 2, .buffer_bytes_max = 65536, .period_bytes_min = 64, .period_bytes_max = 65536, .periods_min = 1, .periods_max = 1024, /* FIXME: maybe that card actually has a FIFO? * Hmm, it seems newer revisions do have one, but we still don't know * its size... */ .fifo_size = 0, }; static const struct snd_pcm_hardware snd_azf3328_capture = { /* FIXME */ .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP_VALID, .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, .rates = SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_KNOT, .rate_min = AZF_FREQ_4000, .rate_max = AZF_FREQ_66200, .channels_min = 1, .channels_max = 2, .buffer_bytes_max = 65536, .period_bytes_min = 64, .period_bytes_max = 65536, .periods_min = 1, .periods_max = 1024, .fifo_size = 0, }; static unsigned int snd_azf3328_fixed_rates[] = { AZF_FREQ_4000, AZF_FREQ_4800, AZF_FREQ_5512, AZF_FREQ_6620, AZF_FREQ_8000, AZF_FREQ_9600, AZF_FREQ_11025, AZF_FREQ_13240, AZF_FREQ_16000, AZF_FREQ_22050, AZF_FREQ_32000, AZF_FREQ_44100, AZF_FREQ_48000, AZF_FREQ_66200 }; static struct snd_pcm_hw_constraint_list snd_azf3328_hw_constraints_rates = { .count = ARRAY_SIZE(snd_azf3328_fixed_rates), .list = snd_azf3328_fixed_rates, .mask = 0, }; /*****************************************************************/ static int snd_azf3328_playback_open(struct snd_pcm_substream *substream) { struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; snd_azf3328_dbgcallenter(); chip->audio_stream[AZF_PLAYBACK].substream = substream; runtime->hw = snd_azf3328_playback; snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &snd_azf3328_hw_constraints_rates); snd_azf3328_dbgcallleave(); return 0; } static int snd_azf3328_capture_open(struct snd_pcm_substream *substream) { struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; snd_azf3328_dbgcallenter(); chip->audio_stream[AZF_CAPTURE].substream = substream; runtime->hw = snd_azf3328_capture; snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &snd_azf3328_hw_constraints_rates); snd_azf3328_dbgcallleave(); return 0; } static int snd_azf3328_playback_close(struct snd_pcm_substream *substream) { struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); snd_azf3328_dbgcallenter(); chip->audio_stream[AZF_PLAYBACK].substream = NULL; snd_azf3328_dbgcallleave(); return 0; } static int snd_azf3328_capture_close(struct snd_pcm_substream *substream) { struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); snd_azf3328_dbgcallenter(); chip->audio_stream[AZF_CAPTURE].substream = NULL; snd_azf3328_dbgcallleave(); return 0; } /******************************************************************/ static struct snd_pcm_ops snd_azf3328_playback_ops = { .open = snd_azf3328_playback_open, .close = snd_azf3328_playback_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_azf3328_hw_params, .hw_free = snd_azf3328_hw_free, .prepare = snd_azf3328_playback_prepare, .trigger = snd_azf3328_playback_trigger, .pointer = snd_azf3328_playback_pointer }; static struct snd_pcm_ops snd_azf3328_capture_ops = { .open = snd_azf3328_capture_open, .close = snd_azf3328_capture_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_azf3328_hw_params, .hw_free = snd_azf3328_hw_free, .prepare = snd_azf3328_capture_prepare, .trigger = snd_azf3328_capture_trigger, .pointer = snd_azf3328_capture_pointer }; static int __devinit snd_azf3328_pcm(struct snd_azf3328 *chip, int device) { struct snd_pcm *pcm; int err; snd_azf3328_dbgcallenter(); if ((err = snd_pcm_new(chip->card, "AZF3328 DSP", device, 1, 1, &pcm)) < 0) return err; snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_azf3328_playback_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_azf3328_capture_ops); pcm->private_data = chip; pcm->info_flags = 0; strcpy(pcm->name, chip->card->shortname); chip->pcm = pcm; snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 64*1024, 64*1024); snd_azf3328_dbgcallleave(); return 0; } /******************************************************************/ /*** NOTE: the physical timer resolution actually is 1024000 ticks per second *** (probably derived from main crystal via a divider of 24), *** but announcing those attributes to user-space would make programs *** configure the timer to a 1 tick value, resulting in an absolutely fatal *** timer IRQ storm. *** Thus I chose to announce a down-scaled virtual timer to the outside and *** calculate real timer countdown values internally. *** (the scale factor can be set via module parameter "seqtimer_scaling"). ***/ static int snd_azf3328_timer_start(struct snd_timer *timer) { struct snd_azf3328 *chip; unsigned long flags; unsigned int delay; snd_azf3328_dbgcallenter(); chip = snd_timer_chip(timer); delay = ((timer->sticks * seqtimer_scaling) - 1) & TIMER_VALUE_MASK; if (delay < 49) { /* uhoh, that's not good, since user-space won't know about * this timing tweak * (we need to do it to avoid a lockup, though) */ snd_azf3328_dbgtimer("delay was too low (%d)!\n", delay); delay = 49; /* minimum time is 49 ticks */ } snd_azf3328_dbgtimer("setting timer countdown value %d, add COUNTDOWN|IRQ\n", delay); delay |= TIMER_COUNTDOWN_ENABLE | TIMER_IRQ_ENABLE; spin_lock_irqsave(&chip->reg_lock, flags); snd_azf3328_codec_outl(chip, IDX_IO_TIMER_VALUE, delay); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_azf3328_dbgcallleave(); return 0; } static int snd_azf3328_timer_stop(struct snd_timer *timer) { struct snd_azf3328 *chip; unsigned long flags; snd_azf3328_dbgcallenter(); chip = snd_timer_chip(timer); spin_lock_irqsave(&chip->reg_lock, flags); /* disable timer countdown and interrupt */ /* FIXME: should we write TIMER_IRQ_ACK here? */ snd_azf3328_codec_outb(chip, IDX_IO_TIMER_VALUE + 3, 0); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_azf3328_dbgcallleave(); return 0; } static int snd_azf3328_timer_precise_resolution(struct snd_timer *timer, unsigned long *num, unsigned long *den) { snd_azf3328_dbgcallenter(); *num = 1; *den = 1024000 / seqtimer_scaling; snd_azf3328_dbgcallleave(); return 0; } static struct snd_timer_hardware snd_azf3328_timer_hw = { .flags = SNDRV_TIMER_HW_AUTO, .resolution = 977, /* 1000000/1024000 = 0.9765625us */ .ticks = 1024000, /* max tick count, defined by the value register; actually it's not 1024000, but 1048576, but we don't care */ .start = snd_azf3328_timer_start, .stop = snd_azf3328_timer_stop, .precise_resolution = snd_azf3328_timer_precise_resolution, }; static int __devinit snd_azf3328_timer(struct snd_azf3328 *chip, int device) { struct snd_timer *timer = NULL; struct snd_timer_id tid; int err; snd_azf3328_dbgcallenter(); tid.dev_class = SNDRV_TIMER_CLASS_CARD; tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; tid.card = chip->card->number; tid.device = device; tid.subdevice = 0; snd_azf3328_timer_hw.resolution *= seqtimer_scaling; snd_azf3328_timer_hw.ticks /= seqtimer_scaling; err = snd_timer_new(chip->card, "AZF3328", &tid, &timer); if (err < 0) goto out; strcpy(timer->name, "AZF3328 timer"); timer->private_data = chip; timer->hw = snd_azf3328_timer_hw; chip->timer = timer; snd_azf3328_timer_stop(timer); err = 0; out: snd_azf3328_dbgcallleave(); return err; } /******************************************************************/ static int snd_azf3328_free(struct snd_azf3328 *chip) { if (chip->irq < 0) goto __end_hw; /* reset (close) mixer: * first mute master volume, then reset */ snd_azf3328_mixer_set_mute(chip, IDX_MIXER_PLAY_MASTER, 1); snd_azf3328_mixer_outw(chip, IDX_MIXER_RESET, 0x0000); snd_azf3328_timer_stop(chip->timer); snd_azf3328_gameport_free(chip); if (chip->irq >= 0) synchronize_irq(chip->irq); __end_hw: if (chip->irq >= 0) free_irq(chip->irq, chip); pci_release_regions(chip->pci); pci_disable_device(chip->pci); kfree(chip); return 0; } static int snd_azf3328_dev_free(struct snd_device *device) { struct snd_azf3328 *chip = device->device_data; return snd_azf3328_free(chip); } #if 0 /* check whether a bit can be modified */ static void snd_azf3328_test_bit(unsigned unsigned reg, int bit) { unsigned char val, valoff, valon; val = inb(reg); outb(val & ~(1 << bit), reg); valoff = inb(reg); outb(val|(1 << bit), reg); valon = inb(reg); outb(val, reg); printk(KERN_ERR "reg %04x bit %d: %02x %02x %02x\n", reg, bit, val, valoff, valon ); } #endif static inline void snd_azf3328_debug_show_ports(const struct snd_azf3328 *chip) { #if DEBUG_MISC u16 tmp; snd_azf3328_dbgmisc( "codec_io 0x%lx, game_io 0x%lx, mpu_io 0x%lx, " "opl3_io 0x%lx, mixer_io 0x%lx, irq %d\n", chip->codec_io, chip->game_io, chip->mpu_io, chip->opl3_io, chip->mixer_io, chip->irq ); snd_azf3328_dbgmisc("game %02x %02x %02x %02x %02x %02x\n", snd_azf3328_game_inb(chip, 0), snd_azf3328_game_inb(chip, 1), snd_azf3328_game_inb(chip, 2), snd_azf3328_game_inb(chip, 3), snd_azf3328_game_inb(chip, 4), snd_azf3328_game_inb(chip, 5) ); for (tmp = 0; tmp < 0x07; tmp += 1) snd_azf3328_dbgmisc("mpu_io 0x%04x\n", inb(chip->mpu_io + tmp)); for (tmp = 0; tmp <= 0x07; tmp += 1) snd_azf3328_dbgmisc("0x%02x: game200 0x%04x, game208 0x%04x\n", tmp, inb(0x200 + tmp), inb(0x208 + tmp)); for (tmp = 0; tmp <= 0x01; tmp += 1) snd_azf3328_dbgmisc( "0x%02x: mpu300 0x%04x, mpu310 0x%04x, mpu320 0x%04x, " "mpu330 0x%04x opl388 0x%04x opl38c 0x%04x\n", tmp, inb(0x300 + tmp), inb(0x310 + tmp), inb(0x320 + tmp), inb(0x330 + tmp), inb(0x388 + tmp), inb(0x38c + tmp) ); for (tmp = 0; tmp < AZF_IO_SIZE_CODEC; tmp += 2) snd_azf3328_dbgmisc("codec 0x%02x: 0x%04x\n", tmp, snd_azf3328_codec_inw(chip, tmp) ); for (tmp = 0; tmp < AZF_IO_SIZE_MIXER; tmp += 2) snd_azf3328_dbgmisc("mixer 0x%02x: 0x%04x\n", tmp, snd_azf3328_mixer_inw(chip, tmp) ); #endif /* DEBUG_MISC */ } static int __devinit snd_azf3328_create(struct snd_card *card, struct pci_dev *pci, unsigned long device_type, struct snd_azf3328 **rchip) { struct snd_azf3328 *chip; int err; static struct snd_device_ops ops = { .dev_free = snd_azf3328_dev_free, }; u16 tmp; *rchip = NULL; err = pci_enable_device(pci); if (err < 0) return err; chip = kzalloc(sizeof(*chip), GFP_KERNEL); if (chip == NULL) { err = -ENOMEM; goto out_err; } spin_lock_init(&chip->reg_lock); chip->card = card; chip->pci = pci; chip->irq = -1; /* check if we can restrict PCI DMA transfers to 24 bits */ if (pci_set_dma_mask(pci, DMA_24BIT_MASK) < 0 || pci_set_consistent_dma_mask(pci, DMA_24BIT_MASK) < 0) { snd_printk(KERN_ERR "architecture does not support " "24bit PCI busmaster DMA\n" ); err = -ENXIO; goto out_err; } err = pci_request_regions(pci, "Aztech AZF3328"); if (err < 0) goto out_err; chip->codec_io = pci_resource_start(pci, 0); chip->game_io = pci_resource_start(pci, 1); chip->mpu_io = pci_resource_start(pci, 2); chip->opl3_io = pci_resource_start(pci, 3); chip->mixer_io = pci_resource_start(pci, 4); chip->audio_stream[AZF_PLAYBACK].portbase = chip->codec_io + 0x00; chip->audio_stream[AZF_CAPTURE].portbase = chip->codec_io + 0x20; if (request_irq(pci->irq, snd_azf3328_interrupt, IRQF_SHARED, card->shortname, chip)) { snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); err = -EBUSY; goto out_err; } chip->irq = pci->irq; pci_set_master(pci); synchronize_irq(chip->irq); snd_azf3328_debug_show_ports(chip); err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); if (err < 0) goto out_err; /* create mixer interface & switches */ err = snd_azf3328_mixer_new(chip); if (err < 0) goto out_err; /* shutdown codecs to save power */ /* have snd_azf3328_codec_activity() act properly */ chip->audio_stream[AZF_PLAYBACK].running = 1; snd_azf3328_codec_activity(chip, AZF_PLAYBACK, 0); /* standard chip init stuff */ /* default IRQ init value */ tmp = DMA_PLAY_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE; spin_lock_irq(&chip->reg_lock); snd_azf3328_codec_outb(chip, IDX_IO_PLAY_FLAGS, tmp); snd_azf3328_codec_outb(chip, IDX_IO_REC_FLAGS, tmp); snd_azf3328_codec_outb(chip, IDX_IO_SOMETHING_FLAGS, tmp); spin_unlock_irq(&chip->reg_lock); snd_card_set_dev(card, &pci->dev); *rchip = chip; err = 0; goto out; out_err: if (chip) snd_azf3328_free(chip); pci_disable_device(pci); out: return err; } static int __devinit snd_azf3328_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { static int dev; struct snd_card *card; struct snd_azf3328 *chip; struct snd_opl3 *opl3; int err; snd_azf3328_dbgcallenter(); if (dev >= SNDRV_CARDS) return -ENODEV; if (!enable[dev]) { dev++; return -ENOENT; } card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); if (card == NULL) return -ENOMEM; strcpy(card->driver, "AZF3328"); strcpy(card->shortname, "Aztech AZF3328 (PCI168)"); err = snd_azf3328_create(card, pci, pci_id->driver_data, &chip); if (err < 0) goto out_err; card->private_data = chip; err = snd_mpu401_uart_new( card, 0, MPU401_HW_MPU401, chip->mpu_io, MPU401_INFO_INTEGRATED, pci->irq, 0, &chip->rmidi ); if (err < 0) { snd_printk(KERN_ERR "azf3328: no MPU-401 device at 0x%lx?\n", chip->mpu_io ); goto out_err; } err = snd_azf3328_timer(chip, 0); if (err < 0) goto out_err; err = snd_azf3328_pcm(chip, 0); if (err < 0) goto out_err; if (snd_opl3_create(card, chip->opl3_io, chip->opl3_io+2, OPL3_HW_AUTO, 1, &opl3) < 0) { snd_printk(KERN_ERR "azf3328: no OPL3 device at 0x%lx-0x%lx?\n", chip->opl3_io, chip->opl3_io+2 ); } else { /* need to use IDs 1, 2 since ID 0 is snd_azf3328_timer above */ err = snd_opl3_timer_new(opl3, 1, 2); if (err < 0) goto out_err; err = snd_opl3_hwdep_new(opl3, 0, 1, NULL); if (err < 0) goto out_err; } opl3->private_data = chip; sprintf(card->longname, "%s at 0x%lx, irq %i", card->shortname, chip->codec_io, chip->irq); err = snd_card_register(card); if (err < 0) goto out_err; #ifdef MODULE printk( "azt3328: Sound driver for Aztech AZF3328-based soundcards such as PCI168.\n" "azt3328: Hardware was completely undocumented, unfortunately.\n" "azt3328: Feel free to contact andi AT lisas.de for bug reports etc.!\n" "azt3328: User-scalable sequencer timer set to %dHz (1024000Hz / %d).\n", 1024000 / seqtimer_scaling, seqtimer_scaling); #endif snd_azf3328_gameport(chip, dev); pci_set_drvdata(pci, card); dev++; err = 0; goto out; out_err: snd_printk(KERN_ERR "azf3328: something failed, exiting\n"); snd_card_free(card); out: snd_azf3328_dbgcallleave(); return err; } static void __devexit snd_azf3328_remove(struct pci_dev *pci) { snd_azf3328_dbgcallenter(); snd_card_free(pci_get_drvdata(pci)); pci_set_drvdata(pci, NULL); snd_azf3328_dbgcallleave(); } #ifdef CONFIG_PM static int snd_azf3328_suspend(struct pci_dev *pci, pm_message_t state) { struct snd_card *card = pci_get_drvdata(pci); struct snd_azf3328 *chip = card->private_data; unsigned reg; snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); snd_pcm_suspend_all(chip->pcm); for (reg = 0; reg < AZF_IO_SIZE_MIXER_PM / 2; ++reg) chip->saved_regs_mixer[reg] = inw(chip->mixer_io + reg * 2); /* make sure to disable master volume etc. to prevent looping sound */ snd_azf3328_mixer_set_mute(chip, IDX_MIXER_PLAY_MASTER, 1); snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1); for (reg = 0; reg < AZF_IO_SIZE_CODEC_PM / 2; ++reg) chip->saved_regs_codec[reg] = inw(chip->codec_io + reg * 2); /* manually store the one currently relevant write-only reg, too */ chip->saved_regs_codec[IDX_IO_6AH / 2] = chip->shadow_reg_codec_6AH; for (reg = 0; reg < AZF_IO_SIZE_GAME_PM / 2; ++reg) chip->saved_regs_game[reg] = inw(chip->game_io + reg * 2); for (reg = 0; reg < AZF_IO_SIZE_MPU_PM / 2; ++reg) chip->saved_regs_mpu[reg] = inw(chip->mpu_io + reg * 2); for (reg = 0; reg < AZF_IO_SIZE_OPL3_PM / 2; ++reg) chip->saved_regs_opl3[reg] = inw(chip->opl3_io + reg * 2); pci_disable_device(pci); pci_save_state(pci); pci_set_power_state(pci, pci_choose_state(pci, state)); return 0; } static int snd_azf3328_resume(struct pci_dev *pci) { struct snd_card *card = pci_get_drvdata(pci); struct snd_azf3328 *chip = card->private_data; unsigned reg; pci_set_power_state(pci, PCI_D0); pci_restore_state(pci); if (pci_enable_device(pci) < 0) { printk(KERN_ERR "azt3328: pci_enable_device failed, " "disabling device\n"); snd_card_disconnect(card); return -EIO; } pci_set_master(pci); for (reg = 0; reg < AZF_IO_SIZE_GAME_PM / 2; ++reg) outw(chip->saved_regs_game[reg], chip->game_io + reg * 2); for (reg = 0; reg < AZF_IO_SIZE_MPU_PM / 2; ++reg) outw(chip->saved_regs_mpu[reg], chip->mpu_io + reg * 2); for (reg = 0; reg < AZF_IO_SIZE_OPL3_PM / 2; ++reg) outw(chip->saved_regs_opl3[reg], chip->opl3_io + reg * 2); for (reg = 0; reg < AZF_IO_SIZE_MIXER_PM / 2; ++reg) outw(chip->saved_regs_mixer[reg], chip->mixer_io + reg * 2); for (reg = 0; reg < AZF_IO_SIZE_CODEC_PM / 2; ++reg) outw(chip->saved_regs_codec[reg], chip->codec_io + reg * 2); snd_power_change_state(card, SNDRV_CTL_POWER_D0); return 0; } #endif /* CONFIG_PM */ static struct pci_driver driver = { .name = "AZF3328", .id_table = snd_azf3328_ids, .probe = snd_azf3328_probe, .remove = __devexit_p(snd_azf3328_remove), #ifdef CONFIG_PM .suspend = snd_azf3328_suspend, .resume = snd_azf3328_resume, #endif }; static int __init alsa_card_azf3328_init(void) { int err; snd_azf3328_dbgcallenter(); err = pci_register_driver(&driver); snd_azf3328_dbgcallleave(); return err; } static void __exit alsa_card_azf3328_exit(void) { snd_azf3328_dbgcallenter(); pci_unregister_driver(&driver); snd_azf3328_dbgcallleave(); } module_init(alsa_card_azf3328_init) module_exit(alsa_card_azf3328_exit)