/* * sound/sb_mixer.c * * The low level mixer driver for the Sound Blaster compatible cards. */ /* * Copyright (C) by Hannu Savolainen 1993-1997 * * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) * Version 2 (June 1991). See the "COPYING" file distributed with this software * for more info. * * * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) * Rolf Fokkens (Dec 20 1998) : Moved ESS stuff into sb_ess.[ch] * Stanislav Voronyi <stas@esc.kharkov.com> : Support for AWE 3DSE device (Jun 7 1999) */ #include "sound_config.h" #define __SB_MIXER_C__ #include "sb.h" #include "sb_mixer.h" #include "sb_ess.h" #define SBPRO_RECORDING_DEVICES (SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD) /* Same as SB Pro, unless I find otherwise */ #define SGNXPRO_RECORDING_DEVICES SBPRO_RECORDING_DEVICES #define SBPRO_MIXER_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE | SOUND_MASK_MIC | \ SOUND_MASK_CD | SOUND_MASK_VOLUME) /* SG NX Pro has treble and bass settings on the mixer. The 'speaker' * channel is the COVOX/DisneySoundSource emulation volume control * on the mixer. It does NOT control speaker volume. Should have own * mask eventually? */ #define SGNXPRO_MIXER_DEVICES (SBPRO_MIXER_DEVICES|SOUND_MASK_BASS| \ SOUND_MASK_TREBLE|SOUND_MASK_SPEAKER ) #define SB16_RECORDING_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_LINE | SOUND_MASK_MIC | \ SOUND_MASK_CD) #define SB16_OUTFILTER_DEVICES (SOUND_MASK_LINE | SOUND_MASK_MIC | \ SOUND_MASK_CD) #define SB16_MIXER_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_SPEAKER | SOUND_MASK_LINE | SOUND_MASK_MIC | \ SOUND_MASK_CD | \ SOUND_MASK_IGAIN | SOUND_MASK_OGAIN | \ SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE | \ SOUND_MASK_IMIX) /* These are the only devices that are working at the moment. Others could * be added once they are identified and a method is found to control them. */ #define ALS007_MIXER_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_LINE | \ SOUND_MASK_PCM | SOUND_MASK_MIC | \ SOUND_MASK_CD | \ SOUND_MASK_VOLUME) static mixer_tab sbpro_mix = { MIX_ENT(SOUND_MIXER_VOLUME, 0x22, 7, 4, 0x22, 3, 4), MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_SYNTH, 0x26, 7, 4, 0x26, 3, 4), MIX_ENT(SOUND_MIXER_PCM, 0x04, 7, 4, 0x04, 3, 4), MIX_ENT(SOUND_MIXER_SPEAKER, 0x00, 0, 0, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_LINE, 0x2e, 7, 4, 0x2e, 3, 4), MIX_ENT(SOUND_MIXER_MIC, 0x0a, 2, 3, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_CD, 0x28, 7, 4, 0x28, 3, 4), MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_RECLEV, 0x00, 0, 0, 0x00, 0, 0) }; static mixer_tab sb16_mix = { MIX_ENT(SOUND_MIXER_VOLUME, 0x30, 7, 5, 0x31, 7, 5), MIX_ENT(SOUND_MIXER_BASS, 0x46, 7, 4, 0x47, 7, 4), MIX_ENT(SOUND_MIXER_TREBLE, 0x44, 7, 4, 0x45, 7, 4), MIX_ENT(SOUND_MIXER_SYNTH, 0x34, 7, 5, 0x35, 7, 5), MIX_ENT(SOUND_MIXER_PCM, 0x32, 7, 5, 0x33, 7, 5), MIX_ENT(SOUND_MIXER_SPEAKER, 0x3b, 7, 2, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_LINE, 0x38, 7, 5, 0x39, 7, 5), MIX_ENT(SOUND_MIXER_MIC, 0x3a, 7, 5, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_CD, 0x36, 7, 5, 0x37, 7, 5), MIX_ENT(SOUND_MIXER_IMIX, 0x3c, 0, 1, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_RECLEV, 0x3f, 7, 2, 0x40, 7, 2), /* Obsolete. Use IGAIN */ MIX_ENT(SOUND_MIXER_IGAIN, 0x3f, 7, 2, 0x40, 7, 2), MIX_ENT(SOUND_MIXER_OGAIN, 0x41, 7, 2, 0x42, 7, 2) }; static mixer_tab als007_mix = { MIX_ENT(SOUND_MIXER_VOLUME, 0x62, 7, 4, 0x62, 3, 4), MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_SYNTH, 0x66, 7, 4, 0x66, 3, 4), MIX_ENT(SOUND_MIXER_PCM, 0x64, 7, 4, 0x64, 3, 4), MIX_ENT(SOUND_MIXER_SPEAKER, 0x00, 0, 0, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_LINE, 0x6e, 7, 4, 0x6e, 3, 4), MIX_ENT(SOUND_MIXER_MIC, 0x6a, 2, 3, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_CD, 0x68, 7, 4, 0x68, 3, 4), MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_RECLEV, 0x00, 0, 0, 0x00, 0, 0), /* Obsolete. Use IGAIN */ MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0), MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0) }; /* SM_GAMES Master volume is lower and PCM & FM volumes higher than with SB Pro. This improves the sound quality */ static int smg_default_levels[32] = { 0x2020, /* Master Volume */ 0x4b4b, /* Bass */ 0x4b4b, /* Treble */ 0x6464, /* FM */ 0x6464, /* PCM */ 0x4b4b, /* PC Speaker */ 0x4b4b, /* Ext Line */ 0x0000, /* Mic */ 0x4b4b, /* CD */ 0x4b4b, /* Recording monitor */ 0x4b4b, /* SB PCM */ 0x4b4b, /* Recording level */ 0x4b4b, /* Input gain */ 0x4b4b, /* Output gain */ 0x4040, /* Line1 */ 0x4040, /* Line2 */ 0x1515 /* Line3 */ }; static int sb_default_levels[32] = { 0x5a5a, /* Master Volume */ 0x4b4b, /* Bass */ 0x4b4b, /* Treble */ 0x4b4b, /* FM */ 0x4b4b, /* PCM */ 0x4b4b, /* PC Speaker */ 0x4b4b, /* Ext Line */ 0x1010, /* Mic */ 0x4b4b, /* CD */ 0x0000, /* Recording monitor */ 0x4b4b, /* SB PCM */ 0x4b4b, /* Recording level */ 0x4b4b, /* Input gain */ 0x4b4b, /* Output gain */ 0x4040, /* Line1 */ 0x4040, /* Line2 */ 0x1515 /* Line3 */ }; static unsigned char sb16_recmasks_L[SOUND_MIXER_NRDEVICES] = { 0x00, /* SOUND_MIXER_VOLUME */ 0x00, /* SOUND_MIXER_BASS */ 0x00, /* SOUND_MIXER_TREBLE */ 0x40, /* SOUND_MIXER_SYNTH */ 0x00, /* SOUND_MIXER_PCM */ 0x00, /* SOUND_MIXER_SPEAKER */ 0x10, /* SOUND_MIXER_LINE */ 0x01, /* SOUND_MIXER_MIC */ 0x04, /* SOUND_MIXER_CD */ 0x00, /* SOUND_MIXER_IMIX */ 0x00, /* SOUND_MIXER_ALTPCM */ 0x00, /* SOUND_MIXER_RECLEV */ 0x00, /* SOUND_MIXER_IGAIN */ 0x00 /* SOUND_MIXER_OGAIN */ }; static unsigned char sb16_recmasks_R[SOUND_MIXER_NRDEVICES] = { 0x00, /* SOUND_MIXER_VOLUME */ 0x00, /* SOUND_MIXER_BASS */ 0x00, /* SOUND_MIXER_TREBLE */ 0x20, /* SOUND_MIXER_SYNTH */ 0x00, /* SOUND_MIXER_PCM */ 0x00, /* SOUND_MIXER_SPEAKER */ 0x08, /* SOUND_MIXER_LINE */ 0x01, /* SOUND_MIXER_MIC */ 0x02, /* SOUND_MIXER_CD */ 0x00, /* SOUND_MIXER_IMIX */ 0x00, /* SOUND_MIXER_ALTPCM */ 0x00, /* SOUND_MIXER_RECLEV */ 0x00, /* SOUND_MIXER_IGAIN */ 0x00 /* SOUND_MIXER_OGAIN */ }; static char smw_mix_regs[] = /* Left mixer registers */ { 0x0b, /* SOUND_MIXER_VOLUME */ 0x0d, /* SOUND_MIXER_BASS */ 0x0d, /* SOUND_MIXER_TREBLE */ 0x05, /* SOUND_MIXER_SYNTH */ 0x09, /* SOUND_MIXER_PCM */ 0x00, /* SOUND_MIXER_SPEAKER */ 0x03, /* SOUND_MIXER_LINE */ 0x01, /* SOUND_MIXER_MIC */ 0x07, /* SOUND_MIXER_CD */ 0x00, /* SOUND_MIXER_IMIX */ 0x00, /* SOUND_MIXER_ALTPCM */ 0x00, /* SOUND_MIXER_RECLEV */ 0x00, /* SOUND_MIXER_IGAIN */ 0x00, /* SOUND_MIXER_OGAIN */ 0x00, /* SOUND_MIXER_LINE1 */ 0x00, /* SOUND_MIXER_LINE2 */ 0x00 /* SOUND_MIXER_LINE3 */ }; static int sbmixnum = 1; static void sb_mixer_reset(sb_devc * devc); void sb_mixer_set_stereo(sb_devc * devc, int mode) { sb_chgmixer(devc, OUT_FILTER, STEREO_DAC, (mode ? STEREO_DAC : MONO_DAC)); } static int detect_mixer(sb_devc * devc) { /* Just trust the mixer is there */ return 1; } static void change_bits(sb_devc * devc, unsigned char *regval, int dev, int chn, int newval) { unsigned char mask; int shift; mask = (1 << (*devc->iomap)[dev][chn].nbits) - 1; newval = (int) ((newval * mask) + 50) / 100; /* Scale */ shift = (*devc->iomap)[dev][chn].bitoffs - (*devc->iomap)[dev][LEFT_CHN].nbits + 1; *regval &= ~(mask << shift); /* Mask out previous value */ *regval |= (newval & mask) << shift; /* Set the new value */ } static int sb_mixer_get(sb_devc * devc, int dev) { if (!((1 << dev) & devc->supported_devices)) return -EINVAL; return devc->levels[dev]; } void smw_mixer_init(sb_devc * devc) { int i; sb_setmixer(devc, 0x00, 0x18); /* Mute unused (Telephone) line */ sb_setmixer(devc, 0x10, 0x38); /* Config register 2 */ devc->supported_devices = 0; for (i = 0; i < sizeof(smw_mix_regs); i++) if (smw_mix_regs[i] != 0) devc->supported_devices |= (1 << i); devc->supported_rec_devices = devc->supported_devices & ~(SOUND_MASK_BASS | SOUND_MASK_TREBLE | SOUND_MASK_PCM | SOUND_MASK_VOLUME); sb_mixer_reset(devc); } int sb_common_mixer_set(sb_devc * devc, int dev, int left, int right) { int regoffs; unsigned char val; if ((dev < 0) || (dev >= devc->iomap_sz)) return -EINVAL; regoffs = (*devc->iomap)[dev][LEFT_CHN].regno; if (regoffs == 0) return -EINVAL; val = sb_getmixer(devc, regoffs); change_bits(devc, &val, dev, LEFT_CHN, left); if ((*devc->iomap)[dev][RIGHT_CHN].regno != regoffs) /* * Change register */ { sb_setmixer(devc, regoffs, val); /* * Save the old one */ regoffs = (*devc->iomap)[dev][RIGHT_CHN].regno; if (regoffs == 0) return left | (left << 8); /* * Just left channel present */ val = sb_getmixer(devc, regoffs); /* * Read the new one */ } change_bits(devc, &val, dev, RIGHT_CHN, right); sb_setmixer(devc, regoffs, val); return left | (right << 8); } static int smw_mixer_set(sb_devc * devc, int dev, int left, int right) { int reg, val; switch (dev) { case SOUND_MIXER_VOLUME: sb_setmixer(devc, 0x0b, 96 - (96 * left / 100)); /* 96=mute, 0=max */ sb_setmixer(devc, 0x0c, 96 - (96 * right / 100)); break; case SOUND_MIXER_BASS: case SOUND_MIXER_TREBLE: devc->levels[dev] = left | (right << 8); /* Set left bass and treble values */ val = ((devc->levels[SOUND_MIXER_TREBLE] & 0xff) * 16 / (unsigned) 100) << 4; val |= ((devc->levels[SOUND_MIXER_BASS] & 0xff) * 16 / (unsigned) 100) & 0x0f; sb_setmixer(devc, 0x0d, val); /* Set right bass and treble values */ val = (((devc->levels[SOUND_MIXER_TREBLE] >> 8) & 0xff) * 16 / (unsigned) 100) << 4; val |= (((devc->levels[SOUND_MIXER_BASS] >> 8) & 0xff) * 16 / (unsigned) 100) & 0x0f; sb_setmixer(devc, 0x0e, val); break; default: /* bounds check */ if (dev < 0 || dev >= ARRAY_SIZE(smw_mix_regs)) return -EINVAL; reg = smw_mix_regs[dev]; if (reg == 0) return -EINVAL; sb_setmixer(devc, reg, (24 - (24 * left / 100)) | 0x20); /* 24=mute, 0=max */ sb_setmixer(devc, reg + 1, (24 - (24 * right / 100)) | 0x40); } devc->levels[dev] = left | (right << 8); return left | (right << 8); } static int sb_mixer_set(sb_devc * devc, int dev, int value) { int left = value & 0x000000ff; int right = (value & 0x0000ff00) >> 8; int retval; if (left > 100) left = 100; if (right > 100) right = 100; if ((dev < 0) || (dev > 31)) return -EINVAL; if (!(devc->supported_devices & (1 << dev))) /* * Not supported */ return -EINVAL; /* Differentiate depending on the chipsets */ switch (devc->model) { case MDL_SMW: retval = smw_mixer_set(devc, dev, left, right); break; case MDL_ESS: retval = ess_mixer_set(devc, dev, left, right); break; default: retval = sb_common_mixer_set(devc, dev, left, right); } if (retval >= 0) devc->levels[dev] = retval; return retval; } /* * set_recsrc doesn't apply to ES188x */ static void set_recsrc(sb_devc * devc, int src) { sb_setmixer(devc, RECORD_SRC, (sb_getmixer(devc, RECORD_SRC) & ~7) | (src & 0x7)); } static int set_recmask(sb_devc * devc, int mask) { int devmask, i; unsigned char regimageL, regimageR; devmask = mask & devc->supported_rec_devices; switch (devc->model) { case MDL_SBPRO: case MDL_ESS: case MDL_JAZZ: case MDL_SMW: if (devc->model == MDL_ESS && ess_set_recmask (devc, &devmask)) { break; }; if (devmask != SOUND_MASK_MIC && devmask != SOUND_MASK_LINE && devmask != SOUND_MASK_CD) { /* * More than one device selected. Drop the * previous selection */ devmask &= ~devc->recmask; } if (devmask != SOUND_MASK_MIC && devmask != SOUND_MASK_LINE && devmask != SOUND_MASK_CD) { /* * More than one device selected. Default to * mic */ devmask = SOUND_MASK_MIC; } if (devmask ^ devc->recmask) /* * Input source changed */ { switch (devmask) { case SOUND_MASK_MIC: set_recsrc(devc, SRC__MIC); break; case SOUND_MASK_LINE: set_recsrc(devc, SRC__LINE); break; case SOUND_MASK_CD: set_recsrc(devc, SRC__CD); break; default: set_recsrc(devc, SRC__MIC); } } break; case MDL_SB16: if (!devmask) devmask = SOUND_MASK_MIC; if (devc->submodel == SUBMDL_ALS007) { switch (devmask) { case SOUND_MASK_LINE: sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_LINE); break; case SOUND_MASK_CD: sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_CD); break; case SOUND_MASK_SYNTH: sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_SYNTH); break; default: /* Also takes care of SOUND_MASK_MIC case */ sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_MIC); break; } } else { regimageL = regimageR = 0; for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { if ((1 << i) & devmask) { regimageL |= sb16_recmasks_L[i]; regimageR |= sb16_recmasks_R[i]; } sb_setmixer (devc, SB16_IMASK_L, regimageL); sb_setmixer (devc, SB16_IMASK_R, regimageR); } } break; } devc->recmask = devmask; return devc->recmask; } static int set_outmask(sb_devc * devc, int mask) { int devmask, i; unsigned char regimage; devmask = mask & devc->supported_out_devices; switch (devc->model) { case MDL_SB16: if (devc->submodel == SUBMDL_ALS007) break; else { regimage = 0; for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { if ((1 << i) & devmask) { regimage |= (sb16_recmasks_L[i] | sb16_recmasks_R[i]); } sb_setmixer (devc, SB16_OMASK, regimage); } } break; default: break; } devc->outmask = devmask; return devc->outmask; } static int sb_mixer_ioctl(int dev, unsigned int cmd, void __user *arg) { sb_devc *devc = mixer_devs[dev]->devc; int val, ret; int __user *p = arg; /* * Use ioctl(fd, SOUND_MIXER_AGC, &mode) to turn AGC off (0) or on (1). * Use ioctl(fd, SOUND_MIXER_3DSE, &mode) to turn 3DSE off (0) or on (1) * or mode==2 put 3DSE state to mode. */ if (devc->model == MDL_SB16) { if (cmd == SOUND_MIXER_AGC) { if (get_user(val, p)) return -EFAULT; sb_setmixer(devc, 0x43, (~val) & 0x01); return 0; } if (cmd == SOUND_MIXER_3DSE) { /* I put here 15, but I don't know the exact version. At least my 4.13 havn't 3DSE, 4.16 has it. */ if (devc->minor < 15) return -EINVAL; if (get_user(val, p)) return -EFAULT; if (val == 0 || val == 1) sb_chgmixer(devc, AWE_3DSE, 0x01, val); else if (val == 2) { ret = sb_getmixer(devc, AWE_3DSE)&0x01; return put_user(ret, p); } else return -EINVAL; return 0; } } if (((cmd >> 8) & 0xff) == 'M') { if (_SIOC_DIR(cmd) & _SIOC_WRITE) { if (get_user(val, p)) return -EFAULT; switch (cmd & 0xff) { case SOUND_MIXER_RECSRC: ret = set_recmask(devc, val); break; case SOUND_MIXER_OUTSRC: ret = set_outmask(devc, val); break; default: ret = sb_mixer_set(devc, cmd & 0xff, val); } } else switch (cmd & 0xff) { case SOUND_MIXER_RECSRC: ret = devc->recmask; break; case SOUND_MIXER_OUTSRC: ret = devc->outmask; break; case SOUND_MIXER_DEVMASK: ret = devc->supported_devices; break; case SOUND_MIXER_STEREODEVS: ret = devc->supported_devices; /* The ESS seems to have stereo mic controls */ if (devc->model == MDL_ESS) ret &= ~(SOUND_MASK_SPEAKER|SOUND_MASK_IMIX); else if (devc->model != MDL_JAZZ && devc->model != MDL_SMW) ret &= ~(SOUND_MASK_MIC | SOUND_MASK_SPEAKER | SOUND_MASK_IMIX); break; case SOUND_MIXER_RECMASK: ret = devc->supported_rec_devices; break; case SOUND_MIXER_OUTMASK: ret = devc->supported_out_devices; break; case SOUND_MIXER_CAPS: ret = devc->mixer_caps; break; default: ret = sb_mixer_get(devc, cmd & 0xff); break; } return put_user(ret, p); } else return -EINVAL; } static struct mixer_operations sb_mixer_operations = { .owner = THIS_MODULE, .id = "SB", .name = "Sound Blaster", .ioctl = sb_mixer_ioctl }; static struct mixer_operations als007_mixer_operations = { .owner = THIS_MODULE, .id = "ALS007", .name = "Avance ALS-007", .ioctl = sb_mixer_ioctl }; static void sb_mixer_reset(sb_devc * devc) { char name[32]; int i; sprintf(name, "SB_%d", devc->sbmixnum); if (devc->sbmo.sm_games) devc->levels = load_mixer_volumes(name, smg_default_levels, 1); else devc->levels = load_mixer_volumes(name, sb_default_levels, 1); for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) sb_mixer_set(devc, i, devc->levels[i]); if (devc->model != MDL_ESS || !ess_mixer_reset (devc)) { set_recmask(devc, SOUND_MASK_MIC); }; } int sb_mixer_init(sb_devc * devc, struct module *owner) { int mixer_type = 0; int m; devc->sbmixnum = sbmixnum++; devc->levels = NULL; sb_setmixer(devc, 0x00, 0); /* Reset mixer */ if (!(mixer_type = detect_mixer(devc))) return 0; /* No mixer. Why? */ switch (devc->model) { case MDL_ESSPCI: case MDL_YMPCI: case MDL_SBPRO: case MDL_AZTECH: case MDL_JAZZ: devc->mixer_caps = SOUND_CAP_EXCL_INPUT; devc->supported_devices = SBPRO_MIXER_DEVICES; devc->supported_rec_devices = SBPRO_RECORDING_DEVICES; devc->iomap = &sbpro_mix; devc->iomap_sz = ARRAY_SIZE(sbpro_mix); break; case MDL_ESS: ess_mixer_init (devc); break; case MDL_SMW: devc->mixer_caps = SOUND_CAP_EXCL_INPUT; devc->supported_devices = 0; devc->supported_rec_devices = 0; devc->iomap = &sbpro_mix; devc->iomap_sz = ARRAY_SIZE(sbpro_mix); smw_mixer_init(devc); break; case MDL_SB16: devc->mixer_caps = 0; devc->supported_rec_devices = SB16_RECORDING_DEVICES; devc->supported_out_devices = SB16_OUTFILTER_DEVICES; if (devc->submodel != SUBMDL_ALS007) { devc->supported_devices = SB16_MIXER_DEVICES; devc->iomap = &sb16_mix; devc->iomap_sz = ARRAY_SIZE(sb16_mix); } else { devc->supported_devices = ALS007_MIXER_DEVICES; devc->iomap = &als007_mix; devc->iomap_sz = ARRAY_SIZE(als007_mix); } break; default: printk(KERN_WARNING "sb_mixer: Unsupported mixer type %d\n", devc->model); return 0; } m = sound_alloc_mixerdev(); if (m == -1) return 0; mixer_devs[m] = (struct mixer_operations *)kmalloc(sizeof(struct mixer_operations), GFP_KERNEL); if (mixer_devs[m] == NULL) { printk(KERN_ERR "sb_mixer: Can't allocate memory\n"); sound_unload_mixerdev(m); return 0; } if (devc->submodel != SUBMDL_ALS007) memcpy ((char *) mixer_devs[m], (char *) &sb_mixer_operations, sizeof (struct mixer_operations)); else memcpy ((char *) mixer_devs[m], (char *) &als007_mixer_operations, sizeof (struct mixer_operations)); mixer_devs[m]->devc = devc; if (owner) mixer_devs[m]->owner = owner; devc->my_mixerdev = m; sb_mixer_reset(devc); return 1; } void sb_mixer_unload(sb_devc *devc) { if (devc->my_mixerdev == -1) return; kfree(mixer_devs[devc->my_mixerdev]); sound_unload_mixerdev(devc->my_mixerdev); sbmixnum--; }