diff options
Diffstat (limited to 'sound/oss/aci.c')
| -rw-r--r-- | sound/oss/aci.c | 712 |
1 files changed, 0 insertions, 712 deletions
diff --git a/sound/oss/aci.c b/sound/oss/aci.c deleted file mode 100644 index 3bfac375dbdb..000000000000 --- a/sound/oss/aci.c +++ /dev/null @@ -1,712 +0,0 @@ -/* - * Audio Command Interface (ACI) driver (sound/aci.c) - * - * ACI is a protocol used to communicate with the microcontroller on - * some sound cards produced by miro, e.g. the miroSOUND PCM12 and - * PCM20. The ACI has been developed for miro by Norberto Pellicci - * <pellicci@home.com>. Special thanks to both him and miro for - * providing the ACI specification. - * - * The main function of the ACI is to control the mixer and to get a - * product identification. On the PCM20, ACI also controls the radio - * tuner on this card, this is supported in the Video for Linux - * miropcm20 driver. - * - - * This is a fullfeatured implementation. Unsupported features - * are bugs... (: - * - * It is not longer necessary to load the mad16 module first. The - * user is currently responsible to set the mad16 mixer correctly. - * - * To toggle the solo mode for full duplex operation just use the OSS - * record switch for the pcm ('wave') controller. Robert - * - - * - * Revision history: - * - * 1995-11-10 Markus Kuhn <mskuhn@cip.informatik.uni-erlangen.de> - * First version written. - * 1995-12-31 Markus Kuhn - * Second revision, general code cleanup. - * 1996-05-16 Hannu Savolainen - * Integrated with other parts of the driver. - * 1996-05-28 Markus Kuhn - * Initialize CS4231A mixer, make ACI first mixer, - * use new private mixer API for solo mode. - * 1998-08-18 Ruurd Reitsma <R.A.Reitsma@wbmt.tudelft.nl> - * Small modification to export ACI functions and - * complete modularisation. - * 2000-06-20 Robert Siemer <Robert.Siemer@gmx.de> - * Don't initialize the CS4231A mixer anymore, so the code is - * working again, and other small changes to fit in todays - * kernels. - * 2000-08-26 Robert Siemer - * Clean up and rewrite for 2.4.x. Maybe it's SMP safe now... (: - * ioctl bugfix, and integration of solo-mode into OSS-API, - * added (OSS-limited) equalizer support, return value bugfix, - * changed param aci_reset to reset, new params: ide, wss. - * 2001-04-20 Robert Siemer - * even more cleanups... - * 2001-10-08 Arnaldo Carvalho de Melo <acme@conectiva.com.br> - * Get rid of check_region, .bss optimizations, use set_current_state - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/proc_fs.h> -#include <linux/slab.h> -#include <linux/mutex.h> - -#include <asm/io.h> -#include <asm/uaccess.h> -#include "sound_config.h" - -int aci_port; /* as determined by bit 4 in the OPTi 929 MC4 register */ -static int aci_idcode[2]; /* manufacturer and product ID */ -int aci_version; /* ACI firmware version */ - -EXPORT_SYMBOL(aci_port); -EXPORT_SYMBOL(aci_version); - -#include "aci.h" - - -static int aci_solo; /* status bit of the card that can't be * - * checked with ACI versions prior to 0xb0 */ -static int aci_amp; /* status bit for power-amp/line-out level - but I have no docs about what is what... */ -static int aci_micpreamp=3; /* microphone preamp-level that can't be * - * checked with ACI versions prior to 0xb0 */ - -static int mixer_device; -static struct mutex aci_mutex; - -#ifdef MODULE -static int reset; -module_param(reset, bool, 0); -MODULE_PARM_DESC(reset,"When set to 1, reset aci mixer."); -#else -static int reset = 1; -#endif - -static int ide=-1; -module_param(ide, int, 0); -MODULE_PARM_DESC(ide,"1 enable, 0 disable ide-port - untested" - " default: do nothing"); -static int wss=-1; -module_param(wss, int, 0); -MODULE_PARM_DESC(wss,"change between ACI/WSS-mixer; use 0 and 1 - untested" - " default: do nothing; for PCM1-pro only"); - -#ifdef DEBUG -static void print_bits(unsigned char c) -{ - int j; - printk(KERN_DEBUG "aci: "); - - for (j=7; j>=0; j--) { - printk("%d", (c >> j) & 0x1); - } - - printk("\n"); -} -#endif - -/* - * This busy wait code normally requires less than 15 loops and - * practically always less than 100 loops on my i486/DX2 66 MHz. - * - * Warning: Waiting on the general status flag after reseting the MUTE - * function can take a VERY long time, because the PCM12 does some kind - * of fade-in effect. For this reason, access to the MUTE function has - * not been implemented at all. - * - * - The OSS interface has no mute option. It takes about 3 seconds to - * fade-in on my PCM20. busy_wait() handles it great now... Robert - */ - -static int busy_wait(void) -{ - #define MINTIME 500 - long timeout; - unsigned char byte; - - for (timeout = 1; timeout <= MINTIME+30; timeout++) { - if (((byte=inb(BUSY_REGISTER)) & 1) == 0) { - if (timeout >= MINTIME) - printk(KERN_DEBUG "aci: Got READYFLAG in round %ld.\n", timeout-MINTIME); - return byte; - } - if (timeout >= MINTIME) { - long out=10*HZ; - switch (timeout-MINTIME) { - case 0 ... 9: - out /= 10; - case 10 ... 19: - out /= 10; - case 20 ... 30: - out /= 10; - default: - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(out); - break; - } - } - } - printk(KERN_WARNING "aci: busy_wait() time out.\n"); - return -EBUSY; -} - -/* The four ACI command types are fucked up. [-: - * implied is: 1w - special case for INIT - * write is: 2w1r - * read is: x(1w1r) where x is 1 or 2 (1 CHECK_SIG, 1 CHECK_STER, - * 1 VERSION, 2 IDCODE) - * the command is only in the first write, rest is protocol overhead - * - * indexed is technically a write and used for STATUS - * and the special case for TUNE is: 3w1r - * - * Here the new general sheme: TUNE --> aci_rw_cmd(x, y, z) - * indexed and write --> aci_rw_cmd(x, y, -1) - * implied and read (x=1) --> aci_rw_cmd(x, -1, -1) - * - * Read (x>=2) is not implemented (only used during initialization). - * Use aci_idcode[2] and aci_version... Robert - */ - -/* Some notes for error detection: theoretically it is possible. - * But it doubles the I/O-traffic from ww(r) to wwwrw(r) in the normal - * case and doesn't seem to be designed for that... Robert - */ - -static inline int aci_rawwrite(unsigned char byte) -{ - if (busy_wait() >= 0) { -#ifdef DEBUG - printk(KERN_DEBUG "aci_rawwrite(%d)\n", byte); -#endif - outb(byte, COMMAND_REGISTER); - return 0; - } else - return -EBUSY; -} - -static inline int aci_rawread(void) -{ - unsigned char byte; - - if (busy_wait() >= 0) { - byte=inb(STATUS_REGISTER); -#ifdef DEBUG - printk(KERN_DEBUG "%d = aci_rawread()\n", byte); -#endif - return byte; - } else - return -EBUSY; -} - - -int aci_rw_cmd(int write1, int write2, int write3) -{ - int write[] = {write1, write2, write3}; - int read = -EINTR, i; - - if (mutex_lock_interruptible(&aci_mutex)) - goto out; - - for (i=0; i<3; i++) { - if (write[i]< 0 || write[i] > 255) - break; - else { - read = aci_rawwrite(write[i]); - if (read < 0) - goto out_up; - } - - } - - read = aci_rawread(); -out_up: mutex_unlock(&aci_mutex); -out: return read; -} - -EXPORT_SYMBOL(aci_rw_cmd); - -static int setvolume(int __user *arg, - unsigned char left_index, unsigned char right_index) -{ - int vol, ret, uservol, buf; - - __get_user(uservol, arg); - - /* left channel */ - vol = uservol & 0xff; - if (vol > 100) - vol = 100; - vol = SCALE(100, 0x20, vol); - if ((buf=aci_write_cmd(left_index, 0x20 - vol))<0) - return buf; - ret = SCALE(0x20, 100, vol); - - - /* right channel */ - vol = (uservol >> 8) & 0xff; - if (vol > 100) - vol = 100; - vol = SCALE(100, 0x20, vol); - if ((buf=aci_write_cmd(right_index, 0x20 - vol))<0) - return buf; - ret |= SCALE(0x20, 100, vol) << 8; - - __put_user(ret, arg); - - return 0; -} - -static int getvolume(int __user *arg, - unsigned char left_index, unsigned char right_index) -{ - int vol; - int buf; - - /* left channel */ - if ((buf=aci_indexed_cmd(ACI_STATUS, left_index))<0) - return buf; - vol = SCALE(0x20, 100, buf < 0x20 ? 0x20-buf : 0); - - /* right channel */ - if ((buf=aci_indexed_cmd(ACI_STATUS, right_index))<0) - return buf; - vol |= SCALE(0x20, 100, buf < 0x20 ? 0x20-buf : 0) << 8; - - __put_user(vol, arg); - - return 0; -} - - -/* The equalizer is somewhat strange on the ACI. From -12dB to +12dB - * write: 0xff..down.to..0x80==0x00..up.to..0x7f - */ - -static inline unsigned int eq_oss2aci(unsigned int vol) -{ - int boost=0; - unsigned int ret; - - if (vol > 100) - vol = 100; - if (vol > 50) { - vol -= 51; - boost=1; - } - if (boost) - ret=SCALE(49, 0x7e, vol)+1; - else - ret=0xff - SCALE(50, 0x7f, vol); - return ret; -} - -static inline unsigned int eq_aci2oss(unsigned int vol) -{ - if (vol < 0x80) - return SCALE(0x7f, 50, vol) + 50; - else - return SCALE(0x7f, 50, 0xff-vol); -} - - -static int setequalizer(int __user *arg, - unsigned char left_index, unsigned char right_index) -{ - int buf; - unsigned int vol; - - __get_user(vol, arg); - - /* left channel */ - if ((buf=aci_write_cmd(left_index, eq_oss2aci(vol & 0xff)))<0) - return buf; - - /* right channel */ - if ((buf=aci_write_cmd(right_index, eq_oss2aci((vol>>8) & 0xff)))<0) - return buf; - - /* the ACI equalizer is more precise */ - return 0; -} - -static int getequalizer(int __user *arg, - unsigned char left_index, unsigned char right_index) -{ - int buf; - unsigned int vol; - - /* left channel */ - if ((buf=aci_indexed_cmd(ACI_STATUS, left_index))<0) - return buf; - vol = eq_aci2oss(buf); - - /* right channel */ - if ((buf=aci_indexed_cmd(ACI_STATUS, right_index))<0) - return buf; - vol |= eq_aci2oss(buf) << 8; - - __put_user(vol, arg); - - return 0; -} - -static int aci_mixer_ioctl (int dev, unsigned int cmd, void __user * arg) -{ - int vol, buf; - int __user *p = arg; - - switch (cmd) { - case SOUND_MIXER_WRITE_VOLUME: - return setvolume(p, 0x01, 0x00); - case SOUND_MIXER_WRITE_CD: - return setvolume(p, 0x3c, 0x34); - case SOUND_MIXER_WRITE_MIC: - return setvolume(p, 0x38, 0x30); - case SOUND_MIXER_WRITE_LINE: - return setvolume(p, 0x39, 0x31); - case SOUND_MIXER_WRITE_SYNTH: - return setvolume(p, 0x3b, 0x33); - case SOUND_MIXER_WRITE_PCM: - return setvolume(p, 0x3a, 0x32); - case MIXER_WRITE(SOUND_MIXER_RADIO): /* fall through */ - case SOUND_MIXER_WRITE_LINE1: /* AUX1 or radio */ - return setvolume(p, 0x3d, 0x35); - case SOUND_MIXER_WRITE_LINE2: /* AUX2 */ - return setvolume(p, 0x3e, 0x36); - case SOUND_MIXER_WRITE_BASS: /* set band one and two */ - if (aci_idcode[1]=='C') { - if ((buf=setequalizer(p, 0x48, 0x40)) || - (buf=setequalizer(p, 0x49, 0x41))); - return buf; - } - break; - case SOUND_MIXER_WRITE_TREBLE: /* set band six and seven */ - if (aci_idcode[1]=='C') { - if ((buf=setequalizer(p, 0x4d, 0x45)) || - (buf=setequalizer(p, 0x4e, 0x46))); - return buf; - } - break; - case SOUND_MIXER_WRITE_IGAIN: /* MIC pre-amp */ - if (aci_idcode[1]=='B' || aci_idcode[1]=='C') { - __get_user(vol, p); - vol = vol & 0xff; - if (vol > 100) - vol = 100; - vol = SCALE(100, 3, vol); - if ((buf=aci_write_cmd(ACI_WRITE_IGAIN, vol))<0) - return buf; - aci_micpreamp = vol; - vol = SCALE(3, 100, vol); - vol |= (vol << 8); - __put_user(vol, p); - return 0; - } - break; - case SOUND_MIXER_WRITE_OGAIN: /* Power-amp/line-out level */ - if (aci_idcode[1]=='A' || aci_idcode[1]=='B') { - __get_user(buf, p); - buf = buf & 0xff; - if (buf > 50) - vol = 1; - else - vol = 0; - if ((buf=aci_write_cmd(ACI_SET_POWERAMP, vol))<0) - return buf; - aci_amp = vol; - if (aci_amp) - buf = (100 || 100<<8); - else - buf = 0; - __put_user(buf, p); - return 0; - } - break; - case SOUND_MIXER_WRITE_RECSRC: - /* handle solo mode control */ - __get_user(buf, p); - /* unset solo when RECSRC for PCM is requested */ - if (aci_idcode[1]=='B' || aci_idcode[1]=='C') { - vol = !(buf & SOUND_MASK_PCM); - if ((buf=aci_write_cmd(ACI_SET_SOLOMODE, vol))<0) - return buf; - aci_solo = vol; - } - buf = (SOUND_MASK_CD| SOUND_MASK_MIC| SOUND_MASK_LINE| - SOUND_MASK_SYNTH| SOUND_MASK_LINE2); - if (aci_idcode[1] == 'C') /* PCM20 radio */ - buf |= SOUND_MASK_RADIO; - else - buf |= SOUND_MASK_LINE1; - if (!aci_solo) - buf |= SOUND_MASK_PCM; - __put_user(buf, p); - return 0; - case SOUND_MIXER_READ_DEVMASK: - buf = (SOUND_MASK_VOLUME | SOUND_MASK_CD | - SOUND_MASK_MIC | SOUND_MASK_LINE | - SOUND_MASK_SYNTH | SOUND_MASK_PCM | - SOUND_MASK_LINE2); - switch (aci_idcode[1]) { - case 'C': /* PCM20 radio */ - buf |= (SOUND_MASK_RADIO | SOUND_MASK_IGAIN | - SOUND_MASK_BASS | SOUND_MASK_TREBLE); - break; - case 'B': /* PCM12 */ - buf |= (SOUND_MASK_LINE1 | SOUND_MASK_IGAIN | - SOUND_MASK_OGAIN); - break; - case 'A': /* PCM1-pro */ - buf |= (SOUND_MASK_LINE1 | SOUND_MASK_OGAIN); - break; - default: - buf |= SOUND_MASK_LINE1; - } - __put_user(buf, p); - return 0; - case SOUND_MIXER_READ_STEREODEVS: - buf = (SOUND_MASK_VOLUME | SOUND_MASK_CD | - SOUND_MASK_MIC | SOUND_MASK_LINE | - SOUND_MASK_SYNTH | SOUND_MASK_PCM | - SOUND_MASK_LINE2); - switch (aci_idcode[1]) { - case 'C': /* PCM20 radio */ - buf |= (SOUND_MASK_RADIO | - SOUND_MASK_BASS | SOUND_MASK_TREBLE); - break; - default: - buf |= SOUND_MASK_LINE1; - } - __put_user(buf, p); - return 0; - case SOUND_MIXER_READ_RECMASK: - buf = (SOUND_MASK_CD| SOUND_MASK_MIC| SOUND_MASK_LINE| - SOUND_MASK_SYNTH| SOUND_MASK_LINE2| SOUND_MASK_PCM); - if (aci_idcode[1] == 'C') /* PCM20 radio */ - buf |= SOUND_MASK_RADIO; - else - buf |= SOUND_MASK_LINE1; - - __put_user(buf, p); - return 0; - case SOUND_MIXER_READ_RECSRC: - buf = (SOUND_MASK_CD | SOUND_MASK_MIC | SOUND_MASK_LINE | - SOUND_MASK_SYNTH | SOUND_MASK_LINE2); - /* do we need aci_solo or can I get it from the ACI? */ - switch (aci_idcode[1]) { - case 'B': /* PCM12 */ - case 'C': /* PCM20 radio */ - if (aci_version >= 0xb0) { - if ((vol=aci_rw_cmd(ACI_STATUS, - ACI_S_GENERAL, -1))<0) - return vol; - if (vol & 0x20) - buf |= SOUND_MASK_PCM; - } - else - if (!aci_solo) - buf |= SOUND_MASK_PCM; - break; - default: - buf |= SOUND_MASK_PCM; - } - if (aci_idcode[1] == 'C') /* PCM20 radio */ - buf |= SOUND_MASK_RADIO; - else - buf |= SOUND_MASK_LINE1; - - __put_user(buf, p); - return 0; - case SOUND_MIXER_READ_CAPS: - __put_user(0, p); - return 0; - case SOUND_MIXER_READ_VOLUME: - return getvolume(p, 0x04, 0x03); - case SOUND_MIXER_READ_CD: - return getvolume(p, 0x0a, 0x09); - case SOUND_MIXER_READ_MIC: - return getvolume(p, 0x06, 0x05); - case SOUND_MIXER_READ_LINE: - return getvolume(p, 0x08, 0x07); - case SOUND_MIXER_READ_SYNTH: - return getvolume(p, 0x0c, 0x0b); - case SOUND_MIXER_READ_PCM: - return getvolume(p, 0x0e, 0x0d); - case MIXER_READ(SOUND_MIXER_RADIO): /* fall through */ - case SOUND_MIXER_READ_LINE1: /* AUX1 */ - return getvolume(p, 0x11, 0x10); - case SOUND_MIXER_READ_LINE2: /* AUX2 */ - return getvolume(p, 0x13, 0x12); - case SOUND_MIXER_READ_BASS: /* get band one */ - if (aci_idcode[1]=='C') { - return getequalizer(p, 0x23, 0x22); - } - break; - case SOUND_MIXER_READ_TREBLE: /* get band seven */ - if (aci_idcode[1]=='C') { - return getequalizer(p, 0x2f, 0x2e); - } - break; - case SOUND_MIXER_READ_IGAIN: /* MIC pre-amp */ - if (aci_idcode[1]=='B' || aci_idcode[1]=='C') { - /* aci_micpreamp or ACI? */ - if (aci_version >= 0xb0) { - if ((buf=aci_indexed_cmd(ACI_STATUS, - ACI_S_READ_IGAIN))<0) - return buf; - } - else - buf=aci_micpreamp; - vol = SCALE(3, 100, buf <= 3 ? buf : 3); - vol |= vol << 8; - __put_user(vol, p); - return 0; - } - break; - case SOUND_MIXER_READ_OGAIN: - if (aci_amp) - buf = (100 || 100<<8); - else - buf = 0; - __put_user(buf, p); - return 0; - } - return -EINVAL; -} - -static struct mixer_operations aci_mixer_operations = -{ - .owner = THIS_MODULE, - .id = "ACI", - .ioctl = aci_mixer_ioctl -}; - -/* - * There is also an internal mixer in the codec (CS4231A or AD1845), - * that deserves no purpose in an ACI based system which uses an - * external ACI controlled stereo mixer. Make sure that this codec - * mixer has the AUX1 input selected as the recording source, that the - * input gain is set near maximum and that the other channels going - * from the inputs to the codec output are muted. - */ - -static int __init attach_aci(void) -{ - char *boardname; - int i, rc = -EBUSY; - - mutex_init(&aci_mutex); - - outb(0xE3, 0xf8f); /* Write MAD16 password */ - aci_port = (inb(0xf90) & 0x10) ? - 0x344: 0x354; /* Get aci_port from MC4_PORT */ - - if (!request_region(aci_port, 3, "sound mixer (ACI)")) { - printk(KERN_NOTICE - "aci: I/O area 0x%03x-0x%03x already used.\n", - aci_port, aci_port+2); - goto out; - } - - /* force ACI into a known state */ - rc = -EFAULT; - for (i=0; i<3; i++) - if (aci_rw_cmd(ACI_ERROR_OP, -1, -1)<0) - goto out_release_region; - - /* official this is one aci read call: */ - rc = -EFAULT; - if ((aci_idcode[0]=aci_rw_cmd(ACI_READ_IDCODE, -1, -1))<0 || - (aci_idcode[1]=aci_rw_cmd(ACI_READ_IDCODE, -1, -1))<0) { - printk(KERN_ERR "aci: Failed to read idcode on 0x%03x.\n", - aci_port); - goto out_release_region; - } - - if ((aci_version=aci_rw_cmd(ACI_READ_VERSION, -1, -1))<0) { - printk(KERN_ERR "aci: Failed to read version on 0x%03x.\n", - aci_port); - goto out_release_region; - } - - if (aci_idcode[0] == 'm') { - /* It looks like a miro sound card. */ - switch (aci_idcode[1]) { - case 'A': - boardname = "PCM1 pro / early PCM12"; - break; - case 'B': - boardname = "PCM12"; - break; - case 'C': - boardname = "PCM20 radio"; - break; - default: - boardname = "unknown miro"; - } - } else { - printk(KERN_WARNING "aci: Warning: unsupported card! - " - "no hardware, no specs...\n"); - boardname = "unknown Cardinal Technologies"; - } - - printk(KERN_INFO "<ACI 0x%02x, id %02x/%02x \"%c/%c\", (%s)> at 0x%03x\n", - aci_version, - aci_idcode[0], aci_idcode[1], - aci_idcode[0], aci_idcode[1], - boardname, aci_port); - - rc = -EBUSY; - if (reset) { - /* first write()s after reset fail with my PCM20 */ - if (aci_rw_cmd(ACI_INIT, -1, -1)<0 || - aci_rw_cmd(ACI_ERROR_OP, ACI_ERROR_OP, ACI_ERROR_OP)<0 || - aci_rw_cmd(ACI_ERROR_OP, ACI_ERROR_OP, ACI_ERROR_OP)<0) - goto out_release_region; - } - - /* the PCM20 is muted after reset (and reboot) */ - if (aci_rw_cmd(ACI_SET_MUTE, 0x00, -1)<0) - goto out_release_region; - - if (ide>=0) - if (aci_rw_cmd(ACI_SET_IDE, !ide, -1)<0) - goto out_release_region; - - if (wss>=0 && aci_idcode[1]=='A') - if (aci_rw_cmd(ACI_SET_WSS, !!wss, -1)<0) - goto out_release_region; - - mixer_device = sound_install_mixer(MIXER_DRIVER_VERSION, boardname, - &aci_mixer_operations, - sizeof(aci_mixer_operations), NULL); - rc = 0; - if (mixer_device < 0) { - printk(KERN_ERR "aci: Failed to install mixer.\n"); - rc = mixer_device; - goto out_release_region; - } /* else Maybe initialize the CS4231A mixer here... */ -out: return rc; -out_release_region: - release_region(aci_port, 3); - goto out; -} - -static void __exit unload_aci(void) -{ - sound_unload_mixerdev(mixer_device); - release_region(aci_port, 3); -} - -module_init(attach_aci); -module_exit(unload_aci); -MODULE_LICENSE("GPL"); |