/* * Copyright (c) by Jaroslav Kysela * Universal interface for Audio Codec '97 * * For more details look to AC '97 component specification revision 2.2 * by Intel Corporation (http://developer.intel.com). * * * 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 * */ #include #include #include #include #include #include #include #include #include #include #include #include "ac97_local.h" #include "ac97_id.h" #include "ac97_patch.h" MODULE_AUTHOR("Jaroslav Kysela "); MODULE_DESCRIPTION("Universal interface for Audio Codec '97"); MODULE_LICENSE("GPL"); static int enable_loopback; module_param(enable_loopback, bool, 0444); MODULE_PARM_DESC(enable_loopback, "Enable AC97 ADC/DAC Loopback Control"); MODULE_PARM_SYNTAX(enable_loopback, SNDRV_BOOLEAN_FALSE_DESC); #define chip_t ac97_t /* */ typedef struct { unsigned int id; unsigned int mask; const char *name; int (*patch)(ac97_t *ac97); int (*mpatch)(ac97_t *ac97); } ac97_codec_id_t; static const ac97_codec_id_t snd_ac97_codec_id_vendors[] = { { 0x414b4d00, 0xffffff00, "Asahi Kasei", NULL, NULL }, { 0x41445300, 0xffffff00, "Analog Devices", NULL, NULL }, { 0x414c4300, 0xffffff00, "Realtek", NULL, NULL }, { 0x414c4700, 0xffffff00, "Realtek", NULL, NULL }, { 0x434d4900, 0xffffff00, "C-Media Electronics", NULL, NULL }, { 0x43525900, 0xffffff00, "Cirrus Logic", NULL, NULL }, { 0x43585400, 0xffffff00, "Conexant", NULL, NULL }, { 0x44543000, 0xffffff00, "Diamond Technology", NULL, NULL }, { 0x454d4300, 0xffffff00, "eMicro", NULL, NULL }, { 0x45838300, 0xffffff00, "ESS Technology", NULL, NULL }, { 0x48525300, 0xffffff00, "Intersil", NULL, NULL }, { 0x49434500, 0xffffff00, "ICEnsemble", NULL, NULL }, { 0x49544500, 0xffffff00, "ITE Tech.Inc", NULL, NULL }, { 0x4e534300, 0xffffff00, "National Semiconductor", NULL, NULL }, { 0x50534300, 0xffffff00, "Philips", NULL, NULL }, { 0x53494c00, 0xffffff00, "Silicon Laboratory", NULL, NULL }, { 0x54524100, 0xffffff00, "TriTech", NULL, NULL }, { 0x54584e00, 0xffffff00, "Texas Instruments", NULL, NULL }, { 0x56494100, 0xffffff00, "VIA Technologies", NULL, NULL }, { 0x57454300, 0xffffff00, "Winbond", NULL, NULL }, { 0x574d4c00, 0xffffff00, "Wolfson", NULL, NULL }, { 0x594d4800, 0xffffff00, "Yamaha", NULL, NULL }, { 0x83847600, 0xffffff00, "SigmaTel", NULL, NULL }, { 0, 0, NULL, NULL, NULL } }; static const ac97_codec_id_t snd_ac97_codec_ids[] = { { 0x414b4d00, 0xffffffff, "AK4540", NULL, NULL }, { 0x414b4d01, 0xffffffff, "AK4542", NULL, NULL }, { 0x414b4d02, 0xffffffff, "AK4543", NULL, NULL }, { 0x414b4d06, 0xffffffff, "AK4544A", NULL, NULL }, { 0x414b4d07, 0xffffffff, "AK4545", NULL, NULL }, { 0x41445303, 0xffffffff, "AD1819", patch_ad1819, NULL }, { 0x41445340, 0xffffffff, "AD1881", patch_ad1881, NULL }, { 0x41445348, 0xffffffff, "AD1881A", patch_ad1881, NULL }, { 0x41445360, 0xffffffff, "AD1885", patch_ad1885, NULL }, { 0x41445361, 0xffffffff, "AD1886", patch_ad1886, NULL }, { 0x41445362, 0xffffffff, "AD1887", patch_ad1881, NULL }, { 0x41445363, 0xffffffff, "AD1886A", patch_ad1881, NULL }, { 0x41445368, 0xffffffff, "AD1888", patch_ad1888, NULL }, { 0x41445370, 0xffffffff, "AD1980", patch_ad1980, NULL }, { 0x41445372, 0xffffffff, "AD1981A", patch_ad1981a, NULL }, { 0x41445374, 0xffffffff, "AD1981B", patch_ad1981b, NULL }, { 0x41445375, 0xffffffff, "AD1985", patch_ad1985, NULL }, { 0x414c4300, 0xffffff00, "ALC100/100P", NULL, NULL }, { 0x414c4710, 0xfffffff0, "ALC200/200P", NULL, NULL }, { 0x414c4720, 0xfffffff0, "ALC650", patch_alc650, NULL }, { 0x414c4721, 0xfffffff0, "ALC650D", patch_alc650, NULL }, { 0x414c4722, 0xfffffff0, "ALC650E", patch_alc650, NULL }, { 0x414c4723, 0xfffffff0, "ALC650F", patch_alc650, NULL }, { 0x414c4760, 0xfffffff0, "ALC655", patch_alc655, NULL }, { 0x414c4780, 0xfffffff0, "ALC658", patch_alc655, NULL }, { 0x414c4730, 0xffffffff, "ALC101", NULL, NULL }, { 0x414c4740, 0xfffffff0, "ALC202", NULL, NULL }, { 0x414c4750, 0xfffffff0, "ALC250", NULL, NULL }, { 0x414c4770, 0xfffffff0, "ALC203", NULL, NULL }, { 0x434d4941, 0xffffffff, "CMI9738", patch_cm9738, NULL }, { 0x434d4961, 0xffffffff, "CMI9739", patch_cm9739, NULL }, { 0x43525900, 0xfffffff8, "CS4297", NULL, NULL }, { 0x43525910, 0xfffffff8, "CS4297A", patch_cirrus_spdif, NULL }, { 0x43525920, 0xfffffff8, "CS4294/4298", NULL, NULL }, { 0x43525928, 0xfffffff8, "CS4294", NULL, NULL }, { 0x43525930, 0xfffffff8, "CS4299", patch_cirrus_cs4299, NULL }, { 0x43525948, 0xfffffff8, "CS4201", NULL, NULL }, { 0x43525958, 0xfffffff8, "CS4205", patch_cirrus_spdif, NULL }, { 0x43525960, 0xfffffff8, "CS4291", NULL, NULL }, { 0x43525970, 0xfffffff8, "CS4202", NULL, NULL }, { 0x43585421, 0xffffffff, "HSD11246", NULL, NULL }, // SmartMC II { 0x43585428, 0xfffffff8, "Cx20468", patch_conexant, NULL }, // SmartAMC fixme: the mask might be different { 0x44543031, 0xfffffff0, "DT0398", NULL, NULL }, { 0x454d4328, 0xffffffff, "28028", NULL, NULL }, // same as TR28028? { 0x45838308, 0xffffffff, "ESS1988", NULL, NULL }, { 0x48525300, 0xffffff00, "HMP9701", NULL, NULL }, { 0x49434501, 0xffffffff, "ICE1230", NULL, NULL }, { 0x49434511, 0xffffffff, "ICE1232", NULL, NULL }, // alias VIA VT1611A? { 0x49434514, 0xffffffff, "ICE1232A", NULL, NULL }, { 0x49434551, 0xffffffff, "VT1616", patch_vt1616, NULL }, { 0x49434552, 0xffffffff, "VT1616i", patch_vt1616, NULL }, // VT1616 compatible (chipset integrated) { 0x49544520, 0xffffffff, "IT2226E", NULL, NULL }, { 0x49544561, 0xffffffff, "IT2646E", patch_it2646, NULL }, { 0x4e534300, 0xffffffff, "LM4540/43/45/46/48", NULL, NULL }, // only guess --jk { 0x4e534331, 0xffffffff, "LM4549", NULL, NULL }, { 0x4e534350, 0xffffffff, "LM4550", NULL, NULL }, { 0x50534304, 0xffffffff, "UCB1400", NULL, NULL }, { 0x53494c20, 0xffffffe0, "Si3036/8", NULL, mpatch_si3036 }, { 0x54524102, 0xffffffff, "TR28022", NULL, NULL }, { 0x54524106, 0xffffffff, "TR28026", NULL, NULL }, { 0x54524108, 0xffffffff, "TR28028", patch_tritech_tr28028, NULL }, // added by xin jin [07/09/99] { 0x54524123, 0xffffffff, "TR28602", NULL, NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)] { 0x54584e20, 0xffffffff, "TLC320AD9xC", NULL, NULL }, { 0x56494161, 0xffffffff, "VIA1612A", NULL, NULL }, // modified ICE1232 with S/PDIF { 0x57454301, 0xffffffff, "W83971D", NULL, NULL }, { 0x574d4c00, 0xffffffff, "WM9701A", NULL, NULL }, { 0x574d4C03, 0xffffffff, "WM9703/WM9707/WM9708/WM9717", patch_wolfson03, NULL}, { 0x574d4C04, 0xffffffff, "WM9704M/WM9704Q", patch_wolfson04, NULL}, { 0x574d4C05, 0xffffffff, "WM9705/WM9710", patch_wolfson05, NULL}, { 0x574d4C09, 0xffffffff, "WM9709", NULL, NULL}, { 0x574d4C12, 0xffffffff, "WM9711/WM9712", patch_wolfson11, NULL}, { 0x594d4800, 0xffffffff, "YMF743", NULL, NULL }, { 0x594d4802, 0xffffffff, "YMF752", NULL, NULL }, { 0x594d4803, 0xffffffff, "YMF753", patch_yamaha_ymf753, NULL }, { 0x83847600, 0xffffffff, "STAC9700/83/84", patch_sigmatel_stac9700, NULL }, { 0x83847604, 0xffffffff, "STAC9701/3/4/5", NULL, NULL }, { 0x83847605, 0xffffffff, "STAC9704", NULL, NULL }, { 0x83847608, 0xffffffff, "STAC9708/11", patch_sigmatel_stac9708, NULL }, { 0x83847609, 0xffffffff, "STAC9721/23", patch_sigmatel_stac9721, NULL }, { 0x83847644, 0xffffffff, "STAC9744", patch_sigmatel_stac9744, NULL }, { 0x83847650, 0xffffffff, "STAC9750/51", NULL, NULL }, // patch? { 0x83847652, 0xffffffff, "STAC9752/53", NULL, NULL }, // patch? { 0x83847656, 0xffffffff, "STAC9756/57", patch_sigmatel_stac9756, NULL }, { 0x83847658, 0xffffffff, "STAC9758/59", patch_sigmatel_stac9758, NULL }, { 0x83847666, 0xffffffff, "STAC9766/67", NULL, NULL }, // patch? { 0, 0, NULL, NULL, NULL } }; const char *snd_ac97_stereo_enhancements[] = { /* 0 */ "No 3D Stereo Enhancement", /* 1 */ "Analog Devices Phat Stereo", /* 2 */ "Creative Stereo Enhancement", /* 3 */ "National Semi 3D Stereo Enhancement", /* 4 */ "YAMAHA Ymersion", /* 5 */ "BBE 3D Stereo Enhancement", /* 6 */ "Crystal Semi 3D Stereo Enhancement", /* 7 */ "Qsound QXpander", /* 8 */ "Spatializer 3D Stereo Enhancement", /* 9 */ "SRS 3D Stereo Enhancement", /* 10 */ "Platform Tech 3D Stereo Enhancement", /* 11 */ "AKM 3D Audio", /* 12 */ "Aureal Stereo Enhancement", /* 13 */ "Aztech 3D Enhancement", /* 14 */ "Binaura 3D Audio Enhancement", /* 15 */ "ESS Technology Stereo Enhancement", /* 16 */ "Harman International VMAx", /* 17 */ "Nvidea/IC Ensemble/KS Waves 3D Stereo Enhancement", /* 18 */ "Philips Incredible Sound", /* 19 */ "Texas Instruments 3D Stereo Enhancement", /* 20 */ "VLSI Technology 3D Stereo Enhancement", /* 21 */ "TriTech 3D Stereo Enhancement", /* 22 */ "Realtek 3D Stereo Enhancement", /* 23 */ "Samsung 3D Stereo Enhancement", /* 24 */ "Wolfson Microelectronics 3D Enhancement", /* 25 */ "Delta Integration 3D Enhancement", /* 26 */ "SigmaTel 3D Enhancement", /* 27 */ "IC Ensemble/KS Waves", /* 28 */ "Rockwell 3D Stereo Enhancement", /* 29 */ "Reserved 29", /* 30 */ "Reserved 30", /* 31 */ "Reserved 31" }; /* * I/O routines */ static int snd_ac97_valid_reg(ac97_t *ac97, unsigned short reg) { if (ac97->limited_regs && ! test_bit(reg, ac97->reg_accessed)) return 0; /* filter some registers for buggy codecs */ switch (ac97->id) { case AC97_ID_AK4540: case AC97_ID_AK4542: if (reg <= 0x1c || reg == 0x20 || reg == 0x26 || reg >= 0x7c) return 1; return 0; case AC97_ID_AD1819: /* AD1819 */ case AC97_ID_AD1881: /* AD1881 */ case AC97_ID_AD1881A: /* AD1881A */ if (reg >= 0x3a && reg <= 0x6e) /* 0x59 */ return 0; return 1; case AC97_ID_AD1885: /* AD1885 */ case AC97_ID_AD1886: /* AD1886 */ case AC97_ID_AD1886A: /* AD1886A - !!verify!! --jk */ case AC97_ID_AD1887: /* AD1887 - !!verify!! --jk */ if (reg == 0x5a) return 1; if (reg >= 0x3c && reg <= 0x6e) /* 0x59 */ return 0; return 1; case AC97_ID_STAC9700: case AC97_ID_STAC9704: case AC97_ID_STAC9705: case AC97_ID_STAC9708: case AC97_ID_STAC9721: case AC97_ID_STAC9744: case AC97_ID_STAC9756: if (reg <= 0x3a || reg >= 0x5a) return 1; return 0; } return 1; } /** * snd_ac97_write - write a value on the given register * @ac97: the ac97 instance * @reg: the register to change * @value: the value to set * * Writes a value on the given register. This will invoke the write * callback directly after the register check. * This function doesn't change the register cache unlike * #snd_ca97_write_cache(), so use this only when you don't want to * reflect the change to the suspend/resume state. */ void snd_ac97_write(ac97_t *ac97, unsigned short reg, unsigned short value) { if (!snd_ac97_valid_reg(ac97, reg)) return; if ((ac97->id & 0xffffff00) == 0x414c4300) { /* Fix H/W bug of ALC100/100P */ if (reg == AC97_MASTER || reg == AC97_HEADPHONE) ac97->bus->write(ac97, AC97_RESET, 0); /* reset audio codec */ } ac97->bus->write(ac97, reg, value); } /** * snd_ac97_read - read a value from the given register * * @ac97: the ac97 instance * @reg: the register to read * * Reads a value from the given register. This will invoke the read * callback directly after the register check. * * Returns the read value. */ unsigned short snd_ac97_read(ac97_t *ac97, unsigned short reg) { if (!snd_ac97_valid_reg(ac97, reg)) return 0; return ac97->bus->read(ac97, reg); } /* read a register - return the cached value if already read */ static inline unsigned short snd_ac97_read_cache(ac97_t *ac97, unsigned short reg) { if (! test_bit(reg, ac97->reg_accessed)) { ac97->regs[reg] = ac97->bus->read(ac97, reg); // set_bit(reg, ac97->reg_accessed); } return ac97->regs[reg]; } /** * snd_ac97_write_cache - write a value on the given register and update the cache * @ac97: the ac97 instance * @reg: the register to change * @value: the value to set * * Writes a value on the given register and updates the register * cache. The cached values are used for the cached-read and the * suspend/resume. */ void snd_ac97_write_cache(ac97_t *ac97, unsigned short reg, unsigned short value) { if (!snd_ac97_valid_reg(ac97, reg)) return; spin_lock(&ac97->reg_lock); ac97->regs[reg] = value; spin_unlock(&ac97->reg_lock); ac97->bus->write(ac97, reg, value); set_bit(reg, ac97->reg_accessed); } /** * snd_ac97_update - update the value on the given register * @ac97: the ac97 instance * @reg: the register to change * @value: the value to set * * Compares the value with the register cache and updates the value * only when the value is changed. * * Returns 1 if the value is changed, 0 if no change, or a negative * code on failure. */ int snd_ac97_update(ac97_t *ac97, unsigned short reg, unsigned short value) { int change; if (!snd_ac97_valid_reg(ac97, reg)) return -EINVAL; spin_lock(&ac97->reg_lock); change = ac97->regs[reg] != value; if (change) { ac97->regs[reg] = value; spin_unlock(&ac97->reg_lock); ac97->bus->write(ac97, reg, value); } else spin_unlock(&ac97->reg_lock); return change; } /** * snd_ac97_update_bits - update the bits on the given register * @ac97: the ac97 instance * @reg: the register to change * @mask: the bit-mask to change * @value: the value to set * * Updates the masked-bits on the given register only when the value * is changed. * * Returns 1 if the bits are changed, 0 if no change, or a negative * code on failure. */ int snd_ac97_update_bits(ac97_t *ac97, unsigned short reg, unsigned short mask, unsigned short value) { int change; unsigned short old, new; if (!snd_ac97_valid_reg(ac97, reg)) return -EINVAL; spin_lock(&ac97->reg_lock); old = snd_ac97_read_cache(ac97, reg); new = (old & ~mask) | value; change = old != new; if (change) { ac97->regs[reg] = new; spin_unlock(&ac97->reg_lock); ac97->bus->write(ac97, reg, new); } else spin_unlock(&ac97->reg_lock); return change; } static int snd_ac97_ad18xx_update_pcm_bits(ac97_t *ac97, int codec, unsigned short mask, unsigned short value) { int change; unsigned short old, new, cfg; down(&ac97->spec.ad18xx.mutex); spin_lock(&ac97->reg_lock); old = ac97->spec.ad18xx.pcmreg[codec]; new = (old & ~mask) | value; cfg = snd_ac97_read_cache(ac97, AC97_AD_SERIAL_CFG); change = old != new; if (change) { ac97->spec.ad18xx.pcmreg[codec] = new; spin_unlock(&ac97->reg_lock); /* select single codec */ ac97->bus->write(ac97, AC97_AD_SERIAL_CFG, (cfg & ~0x7000) | ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]); /* update PCM bits */ ac97->bus->write(ac97, AC97_PCM, new); /* select all codecs */ ac97->bus->write(ac97, AC97_AD_SERIAL_CFG, cfg | 0x7000); } else spin_unlock(&ac97->reg_lock); up(&ac97->spec.ad18xx.mutex); return change; } /* * */ static int snd_ac97_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) { static char *texts[8] = { "Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone" }; uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; uinfo->count = 2; uinfo->value.enumerated.items = 8; if (uinfo->value.enumerated.item > 7) uinfo->value.enumerated.item = 7; strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); return 0; } static int snd_ac97_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); unsigned short val; val = snd_ac97_read_cache(ac97, AC97_REC_SEL); ucontrol->value.enumerated.item[0] = (val >> 8) & 7; ucontrol->value.enumerated.item[1] = (val >> 0) & 7; return 0; } static int snd_ac97_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); unsigned short val; if (ucontrol->value.enumerated.item[0] > 7 || ucontrol->value.enumerated.item[1] > 7) return -EINVAL; val = (ucontrol->value.enumerated.item[0] << 8) | (ucontrol->value.enumerated.item[1] << 0); return snd_ac97_update(ac97, AC97_REC_SEL, val); } #define AC97_ENUM_DOUBLE(xname, reg, shift, invert) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_info_enum_double, \ .get = snd_ac97_get_enum_double, .put = snd_ac97_put_enum_double, \ .private_value = reg | (shift << 8) | (invert << 24) } static int snd_ac97_info_enum_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) { static char *texts1[2] = { "pre 3D", "post 3D" }; static char *texts2[2] = { "Mix", "Mic" }; static char *texts3[2] = { "Mic1", "Mic2" }; char **texts = NULL; int reg = kcontrol->private_value & 0xff; int shift = (kcontrol->private_value >> 8) & 0xff; switch (reg) { case AC97_GENERAL_PURPOSE: switch (shift) { case 15: texts = texts1; break; case 9: texts = texts2; break; case 8: texts = texts3; break; } } uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; uinfo->count = 1; uinfo->value.enumerated.items = 2; if (uinfo->value.enumerated.item > 1) uinfo->value.enumerated.item = 1; strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); return 0; } static int snd_ac97_get_enum_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); unsigned short val; int reg = kcontrol->private_value & 0xff; int shift = (kcontrol->private_value >> 8) & 0xff; int invert = (kcontrol->private_value >> 24) & 0xff; val = (snd_ac97_read_cache(ac97, reg) >> shift) & 1; if (invert) val ^= 1; ucontrol->value.enumerated.item[0] = val; return 0; } static int snd_ac97_put_enum_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); unsigned short val; int reg = kcontrol->private_value & 0xff; int shift = (kcontrol->private_value >> 8) & 0xff; int invert = (kcontrol->private_value >> 24) & 0xff; if (ucontrol->value.enumerated.item[0] > 1) return -EINVAL; val = !!ucontrol->value.enumerated.item[0]; if (invert) val = !val; return snd_ac97_update_bits(ac97, reg, 1 << shift, val << shift); } int snd_ac97_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) { int mask = (kcontrol->private_value >> 16) & 0xff; uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 1; uinfo->value.integer.min = 0; uinfo->value.integer.max = mask; return 0; } int snd_ac97_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); int reg = kcontrol->private_value & 0xff; int shift = (kcontrol->private_value >> 8) & 0xff; int mask = (kcontrol->private_value >> 16) & 0xff; int invert = (kcontrol->private_value >> 24) & 0xff; ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift) & mask; if (invert) ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; return 0; } int snd_ac97_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); int reg = kcontrol->private_value & 0xff; int shift = (kcontrol->private_value >> 8) & 0xff; int mask = (kcontrol->private_value >> 16) & 0xff; int invert = (kcontrol->private_value >> 24) & 0xff; unsigned short val; val = (ucontrol->value.integer.value[0] & mask); if (invert) val = mask - val; return snd_ac97_update_bits(ac97, reg, mask << shift, val << shift); } #define AC97_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .info = snd_ac97_info_double, \ .get = snd_ac97_get_double, .put = snd_ac97_put_double, \ .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) | ((mask) << 16) | ((invert) << 24) } static int snd_ac97_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) { int mask = (kcontrol->private_value >> 16) & 0xff; uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 2; uinfo->value.integer.min = 0; uinfo->value.integer.max = mask; return 0; } static int snd_ac97_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); int reg = kcontrol->private_value & 0xff; int shift_left = (kcontrol->private_value >> 8) & 0x0f; int shift_right = (kcontrol->private_value >> 12) & 0x0f; int mask = (kcontrol->private_value >> 16) & 0xff; int invert = (kcontrol->private_value >> 24) & 0xff; spin_lock(&ac97->reg_lock); ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift_left) & mask; ucontrol->value.integer.value[1] = (snd_ac97_read_cache(ac97, reg) >> shift_right) & mask; spin_unlock(&ac97->reg_lock); if (invert) { ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1]; } return 0; } static int snd_ac97_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); int reg = kcontrol->private_value & 0xff; int shift_left = (kcontrol->private_value >> 8) & 0x0f; int shift_right = (kcontrol->private_value >> 12) & 0x0f; int mask = (kcontrol->private_value >> 16) & 0xff; int invert = (kcontrol->private_value >> 24) & 0xff; unsigned short val1, val2; val1 = ucontrol->value.integer.value[0] & mask; val2 = ucontrol->value.integer.value[1] & mask; if (invert) { val1 = mask - val1; val2 = mask - val2; } return snd_ac97_update_bits(ac97, reg, (mask << shift_left) | (mask << shift_right), (val1 << shift_left) | (val2 << shift_right)); } static const snd_kcontrol_new_t snd_ac97_controls_master_mono[2] = { AC97_SINGLE("Master Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1), AC97_SINGLE("Master Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1) }; static const snd_kcontrol_new_t snd_ac97_controls_tone[2] = { AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1), AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1) }; static const snd_kcontrol_new_t snd_ac97_controls_pc_beep[2] = { AC97_SINGLE("PC Speaker Playback Switch", AC97_PC_BEEP, 15, 1, 1), AC97_SINGLE("PC Speaker Playback Volume", AC97_PC_BEEP, 1, 15, 1) }; static const snd_kcontrol_new_t snd_ac97_controls_phone[2] = { AC97_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1), AC97_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 15, 1) }; static const snd_kcontrol_new_t snd_ac97_controls_mic[3] = { AC97_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1), AC97_SINGLE("Mic Playback Volume", AC97_MIC, 0, 15, 1), AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0) }; static const snd_kcontrol_new_t snd_ac97_control_capture_src = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Capture Source", .info = snd_ac97_info_mux, .get = snd_ac97_get_mux, .put = snd_ac97_put_mux, }; static const snd_kcontrol_new_t snd_ac97_control_capture_vol = AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0); static const snd_kcontrol_new_t snd_ac97_controls_mic_capture[2] = { AC97_SINGLE("Mic Capture Switch", AC97_REC_GAIN_MIC, 15, 1, 1), AC97_SINGLE("Mic Capture Volume", AC97_REC_GAIN_MIC, 0, 15, 0) }; typedef enum { AC97_GENERAL_PCM_OUT = 0, AC97_GENERAL_STEREO_ENHANCEMENT, AC97_GENERAL_3D, AC97_GENERAL_LOUDNESS, AC97_GENERAL_MONO, AC97_GENERAL_MIC, AC97_GENERAL_LOOPBACK } ac97_general_index_t; static const snd_kcontrol_new_t snd_ac97_controls_general[7] = { AC97_ENUM_DOUBLE("PCM Out Path & Mute", AC97_GENERAL_PURPOSE, 15, 0), AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0), AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0), AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0), AC97_ENUM_DOUBLE("Mono Output Select", AC97_GENERAL_PURPOSE, 9, 0), AC97_ENUM_DOUBLE("Mic Select", AC97_GENERAL_PURPOSE, 8, 0), AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0) }; const snd_kcontrol_new_t snd_ac97_controls_3d[2] = { AC97_SINGLE("3D Control - Center", AC97_3D_CONTROL, 8, 15, 0), AC97_SINGLE("3D Control - Depth", AC97_3D_CONTROL, 0, 15, 0) }; static const snd_kcontrol_new_t snd_ac97_controls_center[2] = { AC97_SINGLE("Center Playback Switch", AC97_CENTER_LFE_MASTER, 7, 1, 1), AC97_SINGLE("Center Playback Volume", AC97_CENTER_LFE_MASTER, 0, 31, 1) }; static const snd_kcontrol_new_t snd_ac97_controls_lfe[2] = { AC97_SINGLE("LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 1, 1), AC97_SINGLE("LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 31, 1) }; static const snd_kcontrol_new_t snd_ac97_controls_surround[2] = { AC97_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1), AC97_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1), }; static const snd_kcontrol_new_t snd_ac97_control_eapd = AC97_SINGLE("External Amplifier", AC97_POWERDOWN, 15, 1, 1); static int snd_ac97_spdif_mask_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) { uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; uinfo->count = 1; return 0; } static int snd_ac97_spdif_cmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol) { ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL | IEC958_AES0_NONAUDIO | IEC958_AES0_CON_EMPHASIS_5015 | IEC958_AES0_CON_NOT_COPYRIGHT; ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY | IEC958_AES1_CON_ORIGINAL; ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS; return 0; } static int snd_ac97_spdif_pmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol) { /* FIXME: AC'97 spec doesn't say which bits are used for what */ ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL | IEC958_AES0_NONAUDIO | IEC958_AES0_PRO_FS | IEC958_AES0_PRO_EMPHASIS_5015; return 0; } static int snd_ac97_spdif_default_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); spin_lock(&ac97->reg_lock); ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff; ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff; ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff; ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff; spin_unlock(&ac97->reg_lock); return 0; } static int snd_ac97_spdif_default_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); unsigned int new = 0; unsigned short val = 0; int change; spin_lock(&ac97->reg_lock); new = val = ucontrol->value.iec958.status[0] & (IEC958_AES0_PROFESSIONAL|IEC958_AES0_NONAUDIO); if (ucontrol->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL) { new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_PRO_FS|IEC958_AES0_PRO_EMPHASIS_5015); switch (new & IEC958_AES0_PRO_FS) { case IEC958_AES0_PRO_FS_44100: val |= 0<<12; break; case IEC958_AES0_PRO_FS_48000: val |= 2<<12; break; case IEC958_AES0_PRO_FS_32000: val |= 3<<12; break; default: val |= 1<<12; break; } if ((new & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015) val |= 1<<3; } else { new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT); new |= ((ucontrol->value.iec958.status[1] & (IEC958_AES1_CON_CATEGORY|IEC958_AES1_CON_ORIGINAL)) << 8); new |= ((ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) << 24); if ((new & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015) val |= 1<<3; if (!(new & IEC958_AES0_CON_NOT_COPYRIGHT)) val |= 1<<2; val |= ((new >> 8) & 0xff) << 4; // category + original switch ((new >> 24) & 0xff) { case IEC958_AES3_CON_FS_44100: val |= 0<<12; break; case IEC958_AES3_CON_FS_48000: val |= 2<<12; break; case IEC958_AES3_CON_FS_32000: val |= 3<<12; break; default: val |= 1<<12; break; } } change = ac97->spdif_status != new; ac97->spdif_status = new; spin_unlock(&ac97->reg_lock); if (ac97->flags & AC97_CS_SPDIF) { int x = (val >> 12) & 0x03; switch (x) { case 0: x = 1; break; // 44.1 case 2: x = 0; break; // 48.0 default: x = 0; break; // illegal. } change |= snd_ac97_update_bits(ac97, AC97_CSR_SPDIF, 0x3fff, ((val & 0xcfff) | (x << 12))); } else if (ac97->flags & AC97_CX_SPDIF) { int v; v = new & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT) ? 0 : AC97_CXR_COPYRGT; v |= new & IEC958_AES0_NONAUDIO ? AC97_CXR_SPDIF_AC3 : AC97_CXR_SPDIF_PCM; change |= snd_ac97_update_bits(ac97, AC97_CXR_AUDIO_MISC, AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT, v); } else { unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS); snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */ change |= snd_ac97_update_bits(ac97, AC97_SPDIF, 0x3fff, val); if (extst & AC97_EA_SPDIF) { snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */ } } return change; } static int snd_ac97_put_spsa(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); int reg = kcontrol->private_value & 0xff; int shift = (kcontrol->private_value >> 8) & 0xff; int mask = (kcontrol->private_value >> 16) & 0xff; // int invert = (kcontrol->private_value >> 24) & 0xff; unsigned short value, old, new; value = (ucontrol->value.integer.value[0] & mask); mask <<= shift; value <<= shift; spin_lock(&ac97->reg_lock); old = snd_ac97_read_cache(ac97, reg); new = (old & ~mask) | value; spin_unlock(&ac97->reg_lock); if (old != new) { int change; unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS); snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */ change = snd_ac97_update_bits(ac97, reg, mask, value); if (extst & AC97_EA_SPDIF) snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */ return change; } return 0; } const snd_kcontrol_new_t snd_ac97_controls_spdif[5] = { { .access = SNDRV_CTL_ELEM_ACCESS_READ, .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK), .info = snd_ac97_spdif_mask_info, .get = snd_ac97_spdif_cmask_get, }, { .access = SNDRV_CTL_ELEM_ACCESS_READ, .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK), .info = snd_ac97_spdif_mask_info, .get = snd_ac97_spdif_pmask_get, }, { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT), .info = snd_ac97_spdif_mask_info, .get = snd_ac97_spdif_default_get, .put = snd_ac97_spdif_default_put, }, AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),AC97_EXTENDED_STATUS, 2, 1, 0), { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA", .info = snd_ac97_info_single, .get = snd_ac97_get_single, .put = snd_ac97_put_spsa, .private_value = AC97_SINGLE_VALUE(AC97_EXTENDED_STATUS, 4, 3, 0) }, }; #define AD18XX_PCM_BITS(xname, codec, lshift, rshift, mask) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_bits, \ .get = snd_ac97_ad18xx_pcm_get_bits, .put = snd_ac97_ad18xx_pcm_put_bits, \ .private_value = (codec) | ((lshift) << 8) | ((rshift) << 12) | ((mask) << 16) } static int snd_ac97_ad18xx_pcm_info_bits(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); int mask = (kcontrol->private_value >> 16) & 0x0f; int lshift = (kcontrol->private_value >> 8) & 0x0f; int rshift = (kcontrol->private_value >> 12) & 0x0f; uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) uinfo->count = 2; else uinfo->count = 1; uinfo->value.integer.min = 0; uinfo->value.integer.max = mask; return 0; } static int snd_ac97_ad18xx_pcm_get_bits(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); int codec = kcontrol->private_value & 3; int lshift = (kcontrol->private_value >> 8) & 0x0f; int rshift = (kcontrol->private_value >> 12) & 0x0f; int mask = (kcontrol->private_value >> 16) & 0xff; ucontrol->value.integer.value[0] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> lshift) & mask); if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) ucontrol->value.integer.value[1] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> rshift) & mask); return 0; } static int snd_ac97_ad18xx_pcm_put_bits(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); int codec = kcontrol->private_value & 3; int lshift = (kcontrol->private_value >> 8) & 0x0f; int rshift = (kcontrol->private_value >> 12) & 0x0f; int mask = (kcontrol->private_value >> 16) & 0xff; unsigned short val, valmask; val = (mask - (ucontrol->value.integer.value[0] & mask)) << lshift; valmask = mask << lshift; if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) { val |= (mask - (ucontrol->value.integer.value[1] & mask)) << rshift; valmask |= mask << rshift; } return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, valmask, val); } #define AD18XX_PCM_VOLUME(xname, codec) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_volume, \ .get = snd_ac97_ad18xx_pcm_get_volume, .put = snd_ac97_ad18xx_pcm_put_volume, \ .private_value = codec } static int snd_ac97_ad18xx_pcm_info_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) { uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 2; uinfo->value.integer.min = 0; uinfo->value.integer.max = 31; return 0; } static int snd_ac97_ad18xx_pcm_get_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); int codec = kcontrol->private_value & 3; spin_lock(&ac97->reg_lock); ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31); ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31); spin_unlock(&ac97->reg_lock); return 0; } static int snd_ac97_ad18xx_pcm_put_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { ac97_t *ac97 = snd_kcontrol_chip(kcontrol); int codec = kcontrol->private_value & 3; unsigned short val1, val2; val1 = 31 - (ucontrol->value.integer.value[0] & 31); val2 = 31 - (ucontrol->value.integer.value[1] & 31); return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, 0x1f1f, (val1 << 8) | val2); } static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_pcm[2] = { AD18XX_PCM_BITS("PCM Playback Switch", 0, 15, 7, 1), AD18XX_PCM_VOLUME("PCM Playback Volume", 0) }; static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_surround[2] = { AD18XX_PCM_BITS("Surround Playback Switch", 1, 15, 7, 1), AD18XX_PCM_VOLUME("Surround Playback Volume", 1) }; static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_center[2] = { AD18XX_PCM_BITS("Center Playback Switch", 2, 15, 15, 1), AD18XX_PCM_BITS("Center Playback Volume", 2, 8, 8, 31) }; static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_lfe[2] = { AD18XX_PCM_BITS("LFE Playback Switch", 2, 7, 7, 1), AD18XX_PCM_BITS("LFE Playback Volume", 2, 0, 0, 31) }; /* * */ static void snd_ac97_powerdown(ac97_t *ac97); static int snd_ac97_bus_free(ac97_bus_t *bus) { if (bus) { snd_ac97_bus_proc_done(bus); if (bus->pcms) kfree(bus->pcms); if (bus->private_free) bus->private_free(bus); snd_magic_kfree(bus); } return 0; } static int snd_ac97_bus_dev_free(snd_device_t *device) { ac97_bus_t *bus = snd_magic_cast(ac97_bus_t, device->device_data, return -ENXIO); return snd_ac97_bus_free(bus); } static int snd_ac97_free(ac97_t *ac97) { if (ac97) { snd_ac97_proc_done(ac97); if (ac97->bus) ac97->bus->codec[ac97->num] = NULL; if (ac97->private_free) ac97->private_free(ac97); snd_magic_kfree(ac97); } return 0; } static int snd_ac97_dev_free(snd_device_t *device) { ac97_t *ac97 = snd_magic_cast(ac97_t, device->device_data, return -ENXIO); snd_ac97_powerdown(ac97); /* for avoiding click noises during shut down */ return snd_ac97_free(ac97); } static int snd_ac97_try_volume_mix(ac97_t * ac97, int reg) { unsigned short val, mask = 0x8000; if (! snd_ac97_valid_reg(ac97, reg)) return 0; switch (reg) { case AC97_MASTER_TONE: return ac97->caps & 0x04 ? 1 : 0; case AC97_HEADPHONE: return ac97->caps & 0x10 ? 1 : 0; case AC97_REC_GAIN_MIC: return ac97->caps & 0x01 ? 1 : 0; case AC97_3D_CONTROL: if (ac97->caps & 0x7c00) { val = snd_ac97_read(ac97, reg); /* if nonzero - fixed and we can't set it */ return val == 0; } return 0; case AC97_CENTER_LFE_MASTER: /* center */ if ((ac97->ext_id & AC97_EI_CDAC) == 0) return 0; break; case AC97_CENTER_LFE_MASTER+1: /* lfe */ if ((ac97->ext_id & AC97_EI_LDAC) == 0) return 0; reg = AC97_CENTER_LFE_MASTER; mask = 0x0080; break; case AC97_SURROUND_MASTER: if ((ac97->ext_id & AC97_EI_SDAC) == 0) return 0; break; } if (ac97->limited_regs && test_bit(reg, ac97->reg_accessed)) return 1; /* allow without check */ val = snd_ac97_read(ac97, reg); if (!(val & mask)) { /* nothing seems to be here - mute flag is not set */ /* try another test */ snd_ac97_write_cache(ac97, reg, val | mask); val = snd_ac97_read(ac97, reg); if (!(val & mask)) return 0; /* nothing here */ } return 1; /* success, useable */ } int snd_ac97_try_bit(ac97_t * ac97, int reg, int bit) { unsigned short mask, val, orig, res; mask = 1 << bit; orig = snd_ac97_read(ac97, reg); val = orig ^ mask; snd_ac97_write(ac97, reg, val); res = snd_ac97_read(ac97, reg); snd_ac97_write_cache(ac97, reg, orig); return res == val; } static void snd_ac97_change_volume_params1(ac97_t * ac97, int reg, unsigned char *max) { unsigned short val, val1; *max = 63; val = 0x8000 | 0x0020; snd_ac97_write(ac97, reg, val); val1 = snd_ac97_read(ac97, reg); if (val != val1) { *max = 31; } /* reset volume to zero */ snd_ac97_write_cache(ac97, reg, 0x8000); } static void snd_ac97_change_volume_params2(ac97_t * ac97, int reg, int shift, unsigned char *max) { unsigned short val, val1; *max = 63; val = 0x8080 | (0x20 << shift); snd_ac97_write(ac97, reg, val); val1 = snd_ac97_read(ac97, reg); if (val != val1) { *max = 31; } /* reset volume to zero */ snd_ac97_write_cache(ac97, reg, 0x8080); } static void snd_ac97_change_volume_params3(ac97_t * ac97, int reg, unsigned char *max) { unsigned short val, val1; *max = 31; val = 0x8000 | 0x0010; snd_ac97_write(ac97, reg, val); val1 = snd_ac97_read(ac97, reg); if (val != val1) { *max = 15; } /* reset volume to zero */ snd_ac97_write_cache(ac97, reg, 0x8000); } static inline int printable(unsigned int x) { x &= 0xff; if (x < ' ' || x >= 0x71) { if (x <= 0x89) return x - 0x71 + 'A'; return '?'; } return x; } snd_kcontrol_t *snd_ac97_cnew(const snd_kcontrol_new_t *_template, ac97_t * ac97) { snd_kcontrol_new_t template; memcpy(&template, _template, sizeof(template)); snd_runtime_check(!template.index, return NULL); template.index = ac97->num; return snd_ctl_new1(&template, ac97); } /* * create mute switch(es) for normal stereo controls */ static int snd_ac97_cmute_new(snd_card_t *card, char *name, int reg, ac97_t *ac97) { snd_kcontrol_t *kctl; int stereo = 0; if (ac97->flags & AC97_STEREO_MUTES) { /* check whether both mute bits work */ unsigned short val, val1; val = snd_ac97_read(ac97, reg); val1 = val | 0x8080; snd_ac97_write(ac97, reg, val1); if (val1 == snd_ac97_read(ac97, reg)) stereo = 1; snd_ac97_write(ac97, reg, val); } if (stereo) { snd_kcontrol_new_t tmp = AC97_DOUBLE(name, reg, 15, 7, 1, 1); tmp.index = ac97->num; kctl = snd_ctl_new1(&tmp, ac97); } else { snd_kcontrol_new_t tmp = AC97_SINGLE(name, reg, 15, 1, 1); tmp.index = ac97->num; kctl = snd_ctl_new1(&tmp, ac97); } return snd_ctl_add(card, kctl); } /* * create volumes for normal stereo controls */ static int snd_ac97_cvol_new(snd_card_t *card, char *name, int reg, unsigned int max, ac97_t *ac97) { int err; snd_kcontrol_new_t tmp = AC97_DOUBLE(name, reg, 8, 0, (unsigned int)max, 1); tmp.index = ac97->num; if ((err = snd_ctl_add(card, snd_ctl_new1(&tmp, ac97))) < 0) return err; snd_ac97_write_cache(ac97, reg, ((ac97->flags & AC97_STEREO_MUTES) ? 0x8080 : 0x8000) | (unsigned short)max | ((unsigned short)max << 8)); return 0; } /* * create mute-switch and volumes for normal stereo controls */ static int snd_ac97_cmix_new(snd_card_t *card, const char *pfx, int reg, int check_res, ac97_t *ac97) { int err; char name[44]; unsigned char max; sprintf(name, "%s Switch", pfx); if ((err = snd_ac97_cmute_new(card, name, reg, ac97)) < 0) return err; sprintf(name, "%s Volume", pfx); if (check_res) snd_ac97_change_volume_params1(ac97, reg, &max); else max = 31; /* 5bit */ if ((err = snd_ac97_cvol_new(card, name, reg, max, ac97)) < 0) return err; return 0; } static int snd_ac97_mixer_build(ac97_t * ac97) { snd_card_t *card = ac97->bus->card; snd_kcontrol_t *kctl; int err; unsigned int idx; unsigned char max; /* build master controls */ /* AD claims to remove this control from AD1887, although spec v2.2 does not allow this */ if (snd_ac97_try_volume_mix(ac97, AC97_MASTER)) { if ((err = snd_ac97_cmix_new(card, "Master Playback", AC97_MASTER, 1, ac97)) < 0) return err; } ac97->regs[AC97_CENTER_LFE_MASTER] = 0x8080; /* build center controls */ if (snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER)) { if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_center[0], ac97))) < 0) return err; if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_center[1], ac97))) < 0) return err; snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 0, &max); kctl->private_value &= ~(0xff << 16); kctl->private_value |= (int)max << 16; snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max); } /* build LFE controls */ if (snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER+1)) { if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_lfe[0], ac97))) < 0) return err; if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_lfe[1], ac97))) < 0) return err; snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 8, &max); kctl->private_value &= ~(0xff << 16); kctl->private_value |= (int)max << 16; snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max << 8); } /* build surround controls */ if (snd_ac97_try_volume_mix(ac97, AC97_SURROUND_MASTER)) { if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_surround[0], ac97))) < 0) return err; if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_surround[1], ac97))) < 0) return err; snd_ac97_change_volume_params2(ac97, AC97_SURROUND_MASTER, 0, &max); kctl->private_value &= ~(0xff << 16); kctl->private_value |= (int)max << 16; snd_ac97_write_cache(ac97, AC97_SURROUND_MASTER, 0x8080 | max | (max << 8)); } /* build headphone controls */ if (snd_ac97_try_volume_mix(ac97, AC97_HEADPHONE) || ac97->id == AC97_ID_STAC9708) { const char *name = ac97->id == AC97_ID_STAC9708 ? "Sigmatel Surround Playback" : "Headphone Playback"; if ((err = snd_ac97_cmix_new(card, name, AC97_HEADPHONE, 1, ac97)) < 0) return err; } /* build master mono controls */ if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_MONO)) { if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_master_mono[0], ac97))) < 0) return err; if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_master_mono[1], ac97))) < 0) return err; snd_ac97_change_volume_params1(ac97, AC97_MASTER_MONO, &max); kctl->private_value &= ~(0xff << 16); kctl->private_value |= (int)max << 16; snd_ac97_write_cache(ac97, AC97_MASTER_MONO, 0x8000 | max); } /* build master tone controls */ if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_TONE)) { for (idx = 0; idx < 2; idx++) { if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97))) < 0) return err; if (ac97->id == AC97_ID_YMF753) { kctl->private_value &= ~(0xff << 16); kctl->private_value |= 7 << 16; } } snd_ac97_write_cache(ac97, AC97_MASTER_TONE, 0x0f0f); } /* build PC Speaker controls */ if ((ac97->flags & AC97_HAS_PC_BEEP) || snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP)) { for (idx = 0; idx < 2; idx++) if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_pc_beep[idx], ac97))) < 0) return err; snd_ac97_write_cache(ac97, AC97_PC_BEEP, 0x801e); } /* build Phone controls */ if (snd_ac97_try_volume_mix(ac97, AC97_PHONE)) { if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_phone[0], ac97))) < 0) return err; if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_phone[1], ac97))) < 0) return err; snd_ac97_change_volume_params3(ac97, AC97_PHONE, &max); kctl->private_value &= ~(0xff << 16); kctl->private_value |= (int)max << 16; snd_ac97_write_cache(ac97, AC97_PHONE, 0x8000 | max); } /* build MIC controls */ snd_ac97_change_volume_params3(ac97, AC97_MIC, &max); for (idx = 0; idx < 3; idx++) { if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_mic[idx], ac97))) < 0) return err; if (idx == 1) { // volume kctl->private_value &= ~(0xff << 16); kctl->private_value |= (int)max << 16; } } snd_ac97_write_cache(ac97, AC97_MIC, 0x8000 | max); /* build Line controls */ if ((err = snd_ac97_cmix_new(card, "Line Playback", AC97_LINE, 0, ac97)) < 0) return err; /* build CD controls */ if ((err = snd_ac97_cmix_new(card, "CD Playback", AC97_CD, 0, ac97)) < 0) return err; /* build Video controls */ if (snd_ac97_try_volume_mix(ac97, AC97_VIDEO)) { if ((err = snd_ac97_cmix_new(card, "Video Playback", AC97_VIDEO, 0, ac97)) < 0) return err; } /* build Aux controls */ if (snd_ac97_try_volume_mix(ac97, AC97_AUX)) { if ((err = snd_ac97_cmix_new(card, "Aux Playback", AC97_AUX, 0, ac97)) < 0) return err; } /* build PCM controls */ if (ac97->flags & AC97_AD_MULTI) { unsigned short init_val; if (ac97->flags & AC97_STEREO_MUTES) init_val = 0x9f9f; else init_val = 0x9f1f; for (idx = 0; idx < 2; idx++) if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_pcm[idx], ac97))) < 0) return err; ac97->spec.ad18xx.pcmreg[0] = init_val; if (ac97->scaps & AC97_SCAP_SURROUND_DAC) { for (idx = 0; idx < 2; idx++) if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_surround[idx], ac97))) < 0) return err; ac97->spec.ad18xx.pcmreg[1] = init_val; } if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) { for (idx = 0; idx < 2; idx++) if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_center[idx], ac97))) < 0) return err; for (idx = 0; idx < 2; idx++) if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_lfe[idx], ac97))) < 0) return err; ac97->spec.ad18xx.pcmreg[2] = init_val; } snd_ac97_write_cache(ac97, AC97_PCM, init_val); } else { if ((err = snd_ac97_cmute_new(card, "PCM Playback Switch", AC97_PCM, ac97)) < 0) return err; /* FIXME: C-Media chips have no PCM volume!! */ if (/*ac97->id == 0x434d4941 ||*/ ac97->id == 0x434d4942 || ac97->id == 0x434d4961) snd_ac97_write_cache(ac97, AC97_PCM, 0x9f1f); else { if ((err = snd_ac97_cvol_new(card, "PCM Playback Volume", AC97_PCM, 31, ac97)) < 0) return err; } } /* build Capture controls */ if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_src, ac97))) < 0) return err; if ((err = snd_ac97_cmute_new(card, "Capture Switch", AC97_REC_GAIN, ac97)) < 0) return err; if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_vol, ac97))) < 0) return err; snd_ac97_write_cache(ac97, AC97_REC_SEL, 0x0000); snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x0000); /* build MIC Capture controls */ if (snd_ac97_try_volume_mix(ac97, AC97_REC_GAIN_MIC)) { for (idx = 0; idx < 2; idx++) if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_capture[idx], ac97))) < 0) return err; snd_ac97_write_cache(ac97, AC97_REC_GAIN_MIC, 0x0000); } /* build PCM out path & mute control */ if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 15)) { if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_PCM_OUT], ac97))) < 0) return err; } /* build Simulated Stereo Enhancement control */ if (ac97->caps & 0x0008) { if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_STEREO_ENHANCEMENT], ac97))) < 0) return err; } /* build 3D Stereo Enhancement control */ if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 13)) { if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_3D], ac97))) < 0) return err; } /* build Loudness control */ if (ac97->caps & 0x0020) { if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOUDNESS], ac97))) < 0) return err; } /* build Mono output select control */ if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 9)) { if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MONO], ac97))) < 0) return err; } /* build Mic select control */ if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 8)) { if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MIC], ac97))) < 0) return err; } /* build ADC/DAC loopback control */ if (enable_loopback && snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 7)) { if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOOPBACK], ac97))) < 0) return err; } snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0x0000); /* build 3D controls */ if (ac97->build_ops && ac97->build_ops->build_3d) { ac97->build_ops->build_3d(ac97); } else { if (snd_ac97_try_volume_mix(ac97, AC97_3D_CONTROL)) { unsigned short val; val = 0x0707; snd_ac97_write(ac97, AC97_3D_CONTROL, val); val = snd_ac97_read(ac97, AC97_3D_CONTROL); val = val == 0x0606; if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0) return err; if (val) kctl->private_value = AC97_3D_CONTROL | (9 << 8) | (7 << 16); if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[1], ac97))) < 0) return err; if (val) kctl->private_value = AC97_3D_CONTROL | (1 << 8) | (7 << 16); snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000); } } /* build S/PDIF controls */ if (ac97->ext_id & AC97_EI_SPDIF) { if (ac97->build_ops && ac97->build_ops->build_spdif) { if ((err = ac97->build_ops->build_spdif(ac97)) < 0) return err; } else { for (idx = 0; idx < 5; idx++) if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_spdif[idx], ac97))) < 0) return err; if (ac97->build_ops && ac97->build_ops->build_post_spdif) { if ((err = ac97->build_ops->build_post_spdif(ac97)) < 0) return err; } /* set default PCM S/PDIF params */ /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */ snd_ac97_write_cache(ac97, AC97_SPDIF, 0x2a20); } ac97->spdif_status = SNDRV_PCM_DEFAULT_CON_SPDIF; } /* build chip specific controls */ if (ac97->build_ops && ac97->build_ops->build_specific) if ((err = ac97->build_ops->build_specific(ac97)) < 0) return err; if (snd_ac97_try_bit(ac97, AC97_POWERDOWN, 15)) { if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_eapd, ac97))) < 0) return err; } return 0; } static int snd_ac97_modem_build(snd_card_t * card, ac97_t * ac97) { /* TODO */ //printk("AC97_GPIO_CFG = %x\n",snd_ac97_read(ac97,AC97_GPIO_CFG)); snd_ac97_write(ac97, AC97_GPIO_CFG, 0xffff & ~(AC97_GPIO_LINE1_OH)); snd_ac97_write(ac97, AC97_GPIO_POLARITY, 0xffff & ~(AC97_GPIO_LINE1_OH)); snd_ac97_write(ac97, AC97_GPIO_STICKY, 0xffff); snd_ac97_write(ac97, AC97_GPIO_WAKEUP, 0x0); snd_ac97_write(ac97, AC97_MISC_AFE, 0x0); return 0; } static int snd_ac97_test_rate(ac97_t *ac97, int reg, int shadow_reg, int rate) { unsigned short val; unsigned int tmp; tmp = ((unsigned int)rate * ac97->bus->clock) / 48000; snd_ac97_write_cache(ac97, reg, tmp & 0xffff); if (shadow_reg) snd_ac97_write_cache(ac97, shadow_reg, tmp & 0xffff); val = snd_ac97_read(ac97, reg); return val == (tmp & 0xffff); } static void snd_ac97_determine_rates(ac97_t *ac97, int reg, int shadow_reg, unsigned int *r_result) { unsigned int result = 0; /* test a non-standard rate */ if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11000)) result |= SNDRV_PCM_RATE_CONTINUOUS; /* let's try to obtain standard rates */ if (snd_ac97_test_rate(ac97, reg, shadow_reg, 8000)) result |= SNDRV_PCM_RATE_8000; if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11025)) result |= SNDRV_PCM_RATE_11025; if (snd_ac97_test_rate(ac97, reg, shadow_reg, 16000)) result |= SNDRV_PCM_RATE_16000; if (snd_ac97_test_rate(ac97, reg, shadow_reg, 22050)) result |= SNDRV_PCM_RATE_22050; if (snd_ac97_test_rate(ac97, reg, shadow_reg, 32000)) result |= SNDRV_PCM_RATE_32000; if (snd_ac97_test_rate(ac97, reg, shadow_reg, 44100)) result |= SNDRV_PCM_RATE_44100; if (snd_ac97_test_rate(ac97, reg, shadow_reg, 48000)) result |= SNDRV_PCM_RATE_48000; *r_result = result; } /* check AC97_SPDIF register to accept which sample rates */ static unsigned int snd_ac97_determine_spdif_rates(ac97_t *ac97) { unsigned int result = 0; int i; static unsigned short ctl_bits[] = { AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K }; static unsigned int rate_bits[] = { SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000 }; for (i = 0; i < (int)ARRAY_SIZE(ctl_bits); i++) { snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, ctl_bits[i]); if ((snd_ac97_read(ac97, AC97_SPDIF) & AC97_SC_SPSR_MASK) == ctl_bits[i]) result |= rate_bits[i]; } return result; } void snd_ac97_get_name(ac97_t *ac97, unsigned int id, char *name, int modem) { const ac97_codec_id_t *pid; sprintf(name, "0x%x %c%c%c", id, printable(id >> 24), printable(id >> 16), printable(id >> 8)); for (pid = snd_ac97_codec_id_vendors; pid->id; pid++) if (pid->id == (id & pid->mask)) { strcpy(name, pid->name); if (ac97) { if (!modem && pid->patch) pid->patch(ac97); else if (modem && pid->mpatch) pid->mpatch(ac97); } goto __vendor_ok; } return; __vendor_ok: for (pid = snd_ac97_codec_ids; pid->id; pid++) if (pid->id == (id & pid->mask)) { strcat(name, " "); strcat(name, pid->name); if (pid->mask != 0xffffffff) sprintf(name + strlen(name), " rev %d", id & ~pid->mask); if (ac97) { if (!modem && pid->patch) pid->patch(ac97); else if (modem && pid->mpatch) pid->mpatch(ac97); } return; } sprintf(name + strlen(name), " id %x", id & 0xff); } /* wait for a while until registers are accessible after RESET * return 0 if ok, negative not ready */ static int ac97_reset_wait(ac97_t *ac97, int timeout, int with_modem) { unsigned long end_time; end_time = jiffies + timeout; do { unsigned short ext_mid; /* use preliminary reads to settle the communication */ snd_ac97_read(ac97, AC97_RESET); snd_ac97_read(ac97, AC97_VENDOR_ID1); snd_ac97_read(ac97, AC97_VENDOR_ID2); /* modem? */ if (with_modem) { ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID); if (ext_mid != 0xffff && (ext_mid & 1) != 0) return 0; } /* because the PCM or MASTER volume registers can be modified, * the REC_GAIN register is used for tests */ /* test if we can write to the record gain volume register */ snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05); if (snd_ac97_read(ac97, AC97_REC_GAIN) == 0x8a05) return 0; set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(HZ/100); } while (time_after_eq(end_time, jiffies)); return -ENODEV; } /** * snd_ac97_bus - create an AC97 bus component * @card: the card instance * @_bus: the template of AC97 bus, callbacks and * the private data. * @rbus: the pointer to store the new AC97 bus instance. * * Creates an AC97 bus component. An ac97_bus_t instance is newly * allocated and initialized from the template (_bus). * * The template must include the valid callbacks (at least read and * write), the bus number (num), and the private data (private_data). * The other callbacks, wait and reset, are not mandatory. * * The clock is set to 48000. If another clock is needed, set * bus->clock manually. * * The AC97 bus instance is registered as a low-level device, so you don't * have to release it manually. * * Returns zero if successful, or a negative error code on failure. */ int snd_ac97_bus(snd_card_t * card, ac97_bus_t * _bus, ac97_bus_t ** rbus) { int err; ac97_bus_t *bus; static snd_device_ops_t ops = { .dev_free = snd_ac97_bus_dev_free, }; snd_assert(card != NULL, return -EINVAL); snd_assert(_bus != NULL && rbus != NULL, return -EINVAL); bus = snd_magic_kmalloc(ac97_bus_t, 0, GFP_KERNEL); if (bus == NULL) return -ENOMEM; *bus = *_bus; bus->card = card; if (bus->clock == 0) bus->clock = 48000; spin_lock_init(&bus->bus_lock); snd_ac97_bus_proc_init(bus); if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, bus, &ops)) < 0) { snd_ac97_bus_free(bus); return err; } *rbus = bus; return 0; } /** * snd_ac97_mixer - create an Codec97 component * @bus: the AC97 bus which codec is attached to * @_ac97: the template of ac97, including index, callbacks and * the private data. * @rac97: the pointer to store the new ac97 instance. * * Creates an Codec97 component. An ac97_t instance is newly * allocated and initialized from the template (_ac97). The codec * is then initialized by the standard procedure. * * The template must include the valid callbacks (at least read and * write), the codec number (num) and address (addr), and the private * data (private_data). The other callbacks, wait and reset, are not * mandatory. * * The ac97 instance is registered as a low-level device, so you don't * have to release it manually. * * Returns zero if successful, or a negative error code on failure. */ int snd_ac97_mixer(ac97_bus_t * bus, ac97_t * _ac97, ac97_t ** rac97) { int err; ac97_t *ac97; snd_card_t *card; char name[64]; unsigned long end_time; unsigned int reg; static snd_device_ops_t ops = { .dev_free = snd_ac97_dev_free, }; snd_assert(rac97 != NULL, return -EINVAL); *rac97 = NULL; snd_assert(bus != NULL && _ac97 != NULL, return -EINVAL); snd_assert(_ac97->num < 4 && bus->codec[_ac97->num] == NULL, return -EINVAL); card = bus->card; ac97 = snd_magic_kmalloc(ac97_t, 0, GFP_KERNEL); if (ac97 == NULL) return -ENOMEM; *ac97 = *_ac97; ac97->bus = bus; bus->codec[ac97->num] = ac97; spin_lock_init(&ac97->reg_lock); if (ac97->pci) { pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_VENDOR_ID, &ac97->subsystem_vendor); pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_ID, &ac97->subsystem_device); } if (bus->reset) { bus->reset(ac97); goto __access_ok; } snd_ac97_write(ac97, AC97_RESET, 0); /* reset to defaults */ if (bus->wait) bus->wait(ac97); else { udelay(50); if (ac97_reset_wait(ac97, HZ/2, 0) < 0 && ac97_reset_wait(ac97, HZ/2, 1) < 0) { snd_printk(KERN_WARNING "AC'97 %d does not respond - RESET\n", ac97->num); /* proceed anyway - it's often non-critical */ } } __access_ok: ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16; ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2); if (ac97->id == 0x00000000 || ac97->id == 0xffffffff) { snd_printk(KERN_ERR "AC'97 %d access is not valid [0x%x], removing mixer.\n", ac97->num, ac97->id); snd_ac97_free(ac97); return -EIO; } /* AC97 audio codec chip revision detection. */ /* Currently only Realtek ALC650 detection implemented. */ switch(ac97->id & 0xfffffff0) { case 0x414c4720: /* ALC650 */ reg = snd_ac97_read(ac97, AC97_ALC650_REVISION); if (((reg & 0x3f) >= 0) && ((reg & 0x3f) < 3)) ac97->id = 0x414c4720; /* Old version */ else if (((reg & 0x3f) >= 3) && ((reg & 0x3f) < 0x10)) ac97->id = 0x414c4721; /* D version */ else if ((reg&0x30) == 0x10) ac97->id = 0x414c4722; /* E version */ else if ((reg&0x30) == 0x20) ac97->id = 0x414c4723; /* F version */ } /* test for AC'97 */ if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO) && !(ac97->scaps & AC97_SCAP_AUDIO)) { /* test if we can write to the record gain volume register */ snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a06); if ((err = snd_ac97_read(ac97, AC97_REC_GAIN)) == 0x8a06) ac97->scaps |= AC97_SCAP_AUDIO; } if (ac97->scaps & AC97_SCAP_AUDIO) { ac97->caps = snd_ac97_read(ac97, AC97_RESET); ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID); if (ac97->ext_id == 0xffff) /* invalid combination */ ac97->ext_id = 0; } /* test for MC'97 */ if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM) && !(ac97->scaps & AC97_SCAP_MODEM)) { ac97->ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID); if (ac97->ext_mid == 0xffff) /* invalid combination */ ac97->ext_mid = 0; if (ac97->ext_mid & 1) ac97->scaps |= AC97_SCAP_MODEM; } if (!ac97_is_audio(ac97) && !ac97_is_modem(ac97)) { if (!(ac97->scaps & (AC97_SCAP_SKIP_AUDIO|AC97_SCAP_SKIP_MODEM))) snd_printk(KERN_ERR "AC'97 %d access error (not audio or modem codec)\n", ac97->num); snd_ac97_free(ac97); return -EACCES; } if (bus->reset) // FIXME: always skipping? goto __ready_ok; /* FIXME: add powerdown control */ if (ac97_is_audio(ac97)) { /* nothing should be in powerdown mode */ snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0); snd_ac97_write_cache(ac97, AC97_RESET, 0); /* reset to defaults */ udelay(100); /* nothing should be in powerdown mode */ snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0); snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0); end_time = jiffies + (HZ / 10); do { if ((snd_ac97_read(ac97, AC97_POWERDOWN) & 0x0f) == 0x0f) goto __ready_ok; set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(HZ/10); } while (time_after_eq(end_time, jiffies)); snd_printk(KERN_ERR "AC'97 %d analog subsections not ready\n", ac97->num); } /* FIXME: add powerdown control */ if (ac97_is_modem(ac97)) { unsigned char tmp; /* nothing should be in powerdown mode */ /* note: it's important to set the rate at first */ tmp = AC97_MEA_GPIO; if (ac97->ext_mid & AC97_MEI_LINE1) { snd_ac97_write_cache(ac97, AC97_LINE1_RATE, 12000); tmp |= AC97_MEA_ADC1 | AC97_MEA_DAC1; } if (ac97->ext_mid & AC97_MEI_LINE2) { snd_ac97_write_cache(ac97, AC97_LINE2_RATE, 12000); tmp |= AC97_MEA_ADC2 | AC97_MEA_DAC2; } if (ac97->ext_mid & AC97_MEI_HANDSET) { snd_ac97_write_cache(ac97, AC97_HANDSET_RATE, 12000); tmp |= AC97_MEA_HADC | AC97_MEA_HDAC; } snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0xff00 & ~(tmp << 8)); udelay(100); /* nothing should be in powerdown mode */ snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0xff00 & ~(tmp << 8)); end_time = jiffies + (HZ / 10); do { if ((snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS) & tmp) == tmp) goto __ready_ok; set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(HZ/10); } while (time_after_eq(end_time, jiffies)); snd_printk(KERN_ERR "MC'97 %d converters and GPIO not ready (0x%x)\n", ac97->num, snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS)); } __ready_ok: if (ac97_is_audio(ac97)) ac97->addr = (ac97->ext_id & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT; else ac97->addr = (ac97->ext_mid & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT; if (ac97->ext_id & 0x0189) /* L/R, MIC, SDAC, LDAC VRA support */ snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, ac97->ext_id & 0x0189); if (ac97->ext_id & AC97_EI_VRA) { /* VRA support */ snd_ac97_determine_rates(ac97, AC97_PCM_FRONT_DAC_RATE, 0, &ac97->rates[AC97_RATES_FRONT_DAC]); snd_ac97_determine_rates(ac97, AC97_PCM_LR_ADC_RATE, 0, &ac97->rates[AC97_RATES_ADC]); } else { ac97->rates[AC97_RATES_FRONT_DAC] = SNDRV_PCM_RATE_48000; ac97->rates[AC97_RATES_ADC] = SNDRV_PCM_RATE_48000; } if (ac97->ext_id & AC97_EI_SPDIF) { /* codec specific code (patch) should override these values */ if (ac97->flags & AC97_CS_SPDIF) ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100; else if (ac97->id == AC97_ID_CM9739) ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000; else ac97->rates[AC97_RATES_SPDIF] = snd_ac97_determine_spdif_rates(ac97); } if (ac97->ext_id & AC97_EI_VRM) { /* MIC VRA support */ snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]); } else { ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000; } if (ac97->ext_id & AC97_EI_SDAC) { /* SDAC support */ snd_ac97_determine_rates(ac97, AC97_PCM_SURR_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_SURR_DAC]); ac97->scaps |= AC97_SCAP_SURROUND_DAC; } if (ac97->ext_id & AC97_EI_LDAC) { /* LDAC support */ snd_ac97_determine_rates(ac97, AC97_PCM_LFE_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_LFE_DAC]); ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC; } /* additional initializations */ if (bus->init) bus->init(ac97); snd_ac97_get_name(ac97, ac97->id, name, 0); snd_ac97_get_name(NULL, ac97->id, name, 0); // ac97->id might be changed in the special setup code if (ac97_is_audio(ac97)) { if (card->mixername[0] == '\0') { strcpy(card->mixername, name); } else { if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) { strcat(card->mixername, ","); strcat(card->mixername, name); } } if ((err = snd_component_add(card, "AC97a")) < 0) { snd_ac97_free(ac97); return err; } if (snd_ac97_mixer_build(ac97) < 0) { snd_ac97_free(ac97); return -ENOMEM; } } if (ac97_is_modem(ac97)) { if (card->mixername[0] == '\0') { strcpy(card->mixername, name); } else { if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) { strcat(card->mixername, ","); strcat(card->mixername, name); } } if ((err = snd_component_add(card, "AC97m")) < 0) { snd_ac97_free(ac97); return err; } if (snd_ac97_modem_build(card, ac97) < 0) { snd_ac97_free(ac97); return -ENOMEM; } } /* make sure the proper powerdown bits are cleared */ if (ac97->scaps) { reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS); if (ac97->scaps & AC97_SCAP_SURROUND_DAC) reg &= ~AC97_EA_PRJ; if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) reg &= ~(AC97_EA_PRI | AC97_EA_PRK); snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg); } snd_ac97_proc_init(ac97); if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, ac97, &ops)) < 0) { snd_ac97_free(ac97); return err; } *rac97 = ac97; return 0; } /* * Power down the chip. * * MASTER and HEADPHONE registers are muted but the register cache values * are not changed, so that the values can be restored in snd_ac97_resume(). */ static void snd_ac97_powerdown(ac97_t *ac97) { unsigned short power; if (ac97_is_audio(ac97)) { /* some codecs have stereo mute bits */ snd_ac97_write(ac97, AC97_MASTER, 0x9f9f); snd_ac97_write(ac97, AC97_HEADPHONE, 0x9f9f); } power = ac97->regs[AC97_POWERDOWN] | 0x8000; /* EAPD */ power |= 0x4000; /* Headphone amplifier powerdown */ power |= 0x0300; /* ADC & DAC powerdown */ snd_ac97_write(ac97, AC97_POWERDOWN, power); udelay(100); power |= 0x0400; /* Analog Mixer powerdown (Vref on) */ snd_ac97_write(ac97, AC97_POWERDOWN, power); udelay(100); #if 0 /* FIXME: this causes click noises on some boards at resume */ power |= 0x3800; /* AC-link powerdown, internal Clk disable */ snd_ac97_write(ac97, AC97_POWERDOWN, power); #endif } #ifdef CONFIG_PM /** * snd_ac97_suspend - General suspend function for AC97 codec * @ac97: the ac97 instance * * Suspends the codec, power down the chip. */ void snd_ac97_suspend(ac97_t *ac97) { snd_ac97_powerdown(ac97); } /** * snd_ac97_resume - General resume function for AC97 codec * @ac97: the ac97 instance * * Do the standard resume procedure, power up and restoring the * old register values. */ void snd_ac97_resume(ac97_t *ac97) { int i, is_ad18xx, codec; if (ac97->bus->reset) { ac97->bus->reset(ac97); goto __reset_ready; } snd_ac97_write(ac97, AC97_POWERDOWN, 0); snd_ac97_write(ac97, AC97_RESET, 0); udelay(100); snd_ac97_write(ac97, AC97_POWERDOWN, 0); snd_ac97_write(ac97, AC97_GENERAL_PURPOSE, 0); snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]); ac97->bus->write(ac97, AC97_MASTER, 0x8101); for (i = 0; i < 10; i++) { if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101) break; set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(1); } /* FIXME: extra delay */ ac97->bus->write(ac97, AC97_MASTER, 0x8000); if (snd_ac97_read(ac97, AC97_MASTER) != 0x8000) { set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(HZ/4); } __reset_ready: if (ac97->bus->init) ac97->bus->init(ac97); is_ad18xx = (ac97->flags & AC97_AD_MULTI); if (is_ad18xx) { /* restore the AD18xx codec configurations */ for (codec = 0; codec < 3; codec++) { if (! ac97->spec.ad18xx.id[codec]) continue; /* select single codec */ snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]); ac97->bus->write(ac97, AC97_AD_CODEC_CFG, ac97->spec.ad18xx.codec_cfg[codec]); } /* select all codecs */ snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000); } /* restore ac97 status */ for (i = 2; i < 0x7c ; i += 2) { if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID) continue; /* restore only accessible registers * some chip (e.g. nm256) may hang up when unsupported registers * are accessed..! */ if (test_bit(i, ac97->reg_accessed)) { if (is_ad18xx) { /* handle multi codecs for AD18xx */ if (i == AC97_PCM) { for (codec = 0; codec < 3; codec++) { if (! ac97->spec.ad18xx.id[codec]) continue; /* select single codec */ snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]); /* update PCM bits */ ac97->bus->write(ac97, AC97_PCM, ac97->spec.ad18xx.pcmreg[codec]); } /* select all codecs */ snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000); continue; } else if (i == AC97_AD_TEST || i == AC97_AD_CODEC_CFG || i == AC97_AD_SERIAL_CFG) continue; /* ignore */ } snd_ac97_write(ac97, i, ac97->regs[i]); snd_ac97_read(ac97, i); } } if (ac97->ext_id & AC97_EI_SPDIF) { if (ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_SPDIF) { /* reset spdif status */ snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); snd_ac97_write(ac97, AC97_EXTENDED_STATUS, ac97->regs[AC97_EXTENDED_STATUS]); if (ac97->flags & AC97_CS_SPDIF) snd_ac97_write(ac97, AC97_CSR_SPDIF, ac97->regs[AC97_CSR_SPDIF]); else snd_ac97_write(ac97, AC97_SPDIF, ac97->regs[AC97_SPDIF]); snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */ } } } #endif /* */ int snd_ac97_remove_ctl(ac97_t *ac97, const char *name) { snd_ctl_elem_id_t id; memset(&id, 0, sizeof(id)); strcpy(id.name, name); id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; return snd_ctl_remove_id(ac97->bus->card, &id); } static snd_kcontrol_t *ctl_find(ac97_t *ac97, const char *name) { snd_ctl_elem_id_t sid; memset(&sid, 0, sizeof(sid)); strcpy(sid.name, name); sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER; return snd_ctl_find_id(ac97->bus->card, &sid); } int snd_ac97_rename_ctl(ac97_t *ac97, const char *src, const char *dst) { snd_kcontrol_t *kctl = ctl_find(ac97, src); if (kctl) { strcpy(kctl->id.name, dst); return 0; } return -ENOENT; } int snd_ac97_swap_ctl(ac97_t *ac97, const char *s1, const char *s2) { snd_kcontrol_t *kctl1, *kctl2; kctl1 = ctl_find(ac97, s1); kctl2 = ctl_find(ac97, s2); if (kctl1 && kctl2) { strcpy(kctl1->id.name, s2); strcpy(kctl2->id.name, s1); return 0; } return -ENOENT; } static int swap_headphone(ac97_t *ac97, int remove_master) { /* FIXME: error checks.. */ if (remove_master) { if (ctl_find(ac97, "Headphone Playback Switch") == NULL) return 0; snd_ac97_remove_ctl(ac97, "Master Playback Switch"); snd_ac97_remove_ctl(ac97, "Master Playback Volume"); } else { snd_ac97_rename_ctl(ac97, "Master Playback Switch", "Line-Out Playback Switch"); snd_ac97_rename_ctl(ac97, "Master Playback Volume", "Line-Out Playback Volume"); } snd_ac97_rename_ctl(ac97, "Headphone Playback Switch", "Master Playback Switch"); snd_ac97_rename_ctl(ac97, "Headphone Playback Volume", "Master Playback Volume"); return 0; } static int swap_surround(ac97_t *ac97) { /* FIXME: error checks.. */ snd_ac97_swap_ctl(ac97, "Master Playback Switch", "Surround Playback Switch"); snd_ac97_swap_ctl(ac97, "Master Playback Volume", "Surround Playback Volume"); return 0; } static int tune_ad_sharing(ac97_t *ac97) { unsigned short scfg; if ((ac97->id & 0xffffff00) != 0x41445300) { snd_printk(KERN_ERR "ac97_quirk AD_SHARING is only for AD codecs\n"); return -EINVAL; } /* Turn on OMS bit to route microphone to back panel */ scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG); snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x0200); return 0; } static const snd_kcontrol_new_t snd_ac97_alc_jack_detect = AC97_SINGLE("Jack Detect", AC97_ALC650_CLOCK, 5, 1, 0); static int tune_alc_jack(ac97_t *ac97) { if ((ac97->id & 0xffffff00) != 0x414c4700) { snd_printk(KERN_ERR "ac97_quirk ALC_JACK is only for Realtek codecs\n"); return -EINVAL; } snd_ac97_update_bits(ac97, 0x7a, 0x20, 0x20); /* select jack detect function */ snd_ac97_update_bits(ac97, 0x7a, 0x01, 0x01); /* Line-out auto mute */ return snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_alc_jack_detect, ac97)); } static int apply_quirk(ac97_t *ac97, int quirk) { switch (quirk) { case AC97_TUNE_NONE: return 0; case AC97_TUNE_HP_ONLY: return swap_headphone(ac97, 1); case AC97_TUNE_SWAP_HP: return swap_headphone(ac97, 0); case AC97_TUNE_SWAP_SURROUND: return swap_surround(ac97); case AC97_TUNE_AD_SHARING: return tune_ad_sharing(ac97); case AC97_TUNE_ALC_JACK: return tune_alc_jack(ac97); } return -EINVAL; } /** * snd_ac97_tune_hardware - tune up the hardware * @ac97: the ac97 instance * @quirk: quirk list * @override: explicit quirk value (overrides the list if not AC97_TUNE_DEFAULT) * * Do some workaround for each pci device, such as renaming of the * headphone (true line-out) control as "Master". * The quirk-list must be terminated with a zero-filled entry. * * Returns zero if successful, or a negative error code on failure. */ int snd_ac97_tune_hardware(ac97_t *ac97, struct ac97_quirk *quirk, int override) { int result; snd_assert(quirk, return -EINVAL); if (override != AC97_TUNE_DEFAULT) { result = apply_quirk(ac97, override); if (result < 0) snd_printk(KERN_ERR "applying quirk type %d failed (%d)\n", override, result); return result; } for (; quirk->vendor; quirk++) { if (quirk->vendor != ac97->subsystem_vendor) continue; if ((! quirk->mask && quirk->device == ac97->subsystem_device) || quirk->device == (quirk->mask & ac97->subsystem_device)) { snd_printdd("ac97 quirk for %s (%04x:%04x)\n", quirk->name, ac97->subsystem_vendor, ac97->subsystem_device); result = apply_quirk(ac97, quirk->type); if (result < 0) snd_printk(KERN_ERR "applying quirk type %d for %s failed (%d)\n", quirk->type, quirk->name, result); return result; } } return 0; } /* * Exported symbols */ EXPORT_SYMBOL(snd_ac97_write); EXPORT_SYMBOL(snd_ac97_read); EXPORT_SYMBOL(snd_ac97_write_cache); EXPORT_SYMBOL(snd_ac97_update); EXPORT_SYMBOL(snd_ac97_update_bits); EXPORT_SYMBOL(snd_ac97_bus); EXPORT_SYMBOL(snd_ac97_mixer); EXPORT_SYMBOL(snd_ac97_pcm_assign); EXPORT_SYMBOL(snd_ac97_pcm_open); EXPORT_SYMBOL(snd_ac97_pcm_close); EXPORT_SYMBOL(snd_ac97_tune_hardware); EXPORT_SYMBOL(snd_ac97_set_rate); #ifdef CONFIG_PM EXPORT_SYMBOL(snd_ac97_resume); EXPORT_SYMBOL(snd_ac97_suspend); #endif /* * INIT part */ static int __init alsa_ac97_init(void) { return 0; } static void __exit alsa_ac97_exit(void) { } module_init(alsa_ac97_init) module_exit(alsa_ac97_exit)