Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * ac97_codec.c: Generic AC97 mixer/modem module |
| 3 | * |
| 4 | * Derived from ac97 mixer in maestro and trident driver. |
| 5 | * |
| 6 | * Copyright 2000 Silicon Integrated System Corporation |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 21 | * |
| 22 | ************************************************************************** |
| 23 | * |
| 24 | * The Intel Audio Codec '97 specification is available at the Intel |
| 25 | * audio homepage: http://developer.intel.com/ial/scalableplatforms/audio/ |
| 26 | * |
| 27 | * The specification itself is currently available at: |
| 28 | * ftp://download.intel.com/ial/scalableplatforms/ac97r22.pdf |
| 29 | * |
| 30 | ************************************************************************** |
| 31 | * |
| 32 | * History |
| 33 | * May 02, 2003 Liam Girdwood <liam.girdwood@wolfsonmicro.com> |
| 34 | * Removed non existant WM9700 |
| 35 | * Added support for WM9705, WM9708, WM9709, WM9710, WM9711 |
| 36 | * WM9712 and WM9717 |
| 37 | * Mar 28, 2002 Randolph Bentson <bentson@holmsjoen.com> |
| 38 | * corrections to support WM9707 in ViewPad 1000 |
| 39 | * v0.4 Mar 15 2000 Ollie Lho |
| 40 | * dual codecs support verified with 4 channels output |
| 41 | * v0.3 Feb 22 2000 Ollie Lho |
| 42 | * bug fix for record mask setting |
| 43 | * v0.2 Feb 10 2000 Ollie Lho |
| 44 | * add ac97_read_proc for /proc/driver/{vendor}/ac97 |
| 45 | * v0.1 Jan 14 2000 Ollie Lho <ollie@sis.com.tw> |
| 46 | * Isolated from trident.c to support multiple ac97 codec |
| 47 | */ |
| 48 | #include <linux/module.h> |
| 49 | #include <linux/kernel.h> |
| 50 | #include <linux/slab.h> |
| 51 | #include <linux/string.h> |
| 52 | #include <linux/errno.h> |
| 53 | #include <linux/bitops.h> |
| 54 | #include <linux/delay.h> |
| 55 | #include <linux/pci.h> |
| 56 | #include <linux/ac97_codec.h> |
| 57 | #include <asm/uaccess.h> |
Ingo Molnar | f82945d | 2006-03-23 03:00:47 -0800 | [diff] [blame] | 58 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | |
| 60 | #define CODEC_ID_BUFSZ 14 |
| 61 | |
| 62 | static int ac97_read_mixer(struct ac97_codec *codec, int oss_channel); |
| 63 | static void ac97_write_mixer(struct ac97_codec *codec, int oss_channel, |
| 64 | unsigned int left, unsigned int right); |
| 65 | static void ac97_set_mixer(struct ac97_codec *codec, unsigned int oss_mixer, unsigned int val ); |
| 66 | static int ac97_recmask_io(struct ac97_codec *codec, int rw, int mask); |
| 67 | static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg); |
| 68 | |
| 69 | static int ac97_init_mixer(struct ac97_codec *codec); |
| 70 | |
| 71 | static int wolfson_init03(struct ac97_codec * codec); |
| 72 | static int wolfson_init04(struct ac97_codec * codec); |
| 73 | static int wolfson_init05(struct ac97_codec * codec); |
| 74 | static int wolfson_init11(struct ac97_codec * codec); |
| 75 | static int wolfson_init13(struct ac97_codec * codec); |
| 76 | static int tritech_init(struct ac97_codec * codec); |
| 77 | static int tritech_maestro_init(struct ac97_codec * codec); |
| 78 | static int sigmatel_9708_init(struct ac97_codec *codec); |
| 79 | static int sigmatel_9721_init(struct ac97_codec *codec); |
| 80 | static int sigmatel_9744_init(struct ac97_codec *codec); |
| 81 | static int ad1886_init(struct ac97_codec *codec); |
| 82 | static int eapd_control(struct ac97_codec *codec, int); |
| 83 | static int crystal_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); |
| 84 | static int cmedia_init(struct ac97_codec * codec); |
| 85 | static int cmedia_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); |
| 86 | static int generic_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); |
| 87 | |
| 88 | |
| 89 | /* |
| 90 | * AC97 operations. |
| 91 | * |
| 92 | * If you are adding a codec then you should be able to use |
| 93 | * eapd_ops - any codec that supports EAPD amp control (most) |
| 94 | * null_ops - any ancient codec that supports nothing |
| 95 | * |
| 96 | * The three functions are |
| 97 | * init - used for non AC97 standard initialisation |
| 98 | * amplifier - used to do amplifier control (1=on 0=off) |
| 99 | * digital - switch to digital modes (0 = analog) |
| 100 | * |
| 101 | * Not all codecs support all features, not all drivers use all the |
| 102 | * operations yet |
| 103 | */ |
| 104 | |
| 105 | static struct ac97_ops null_ops = { NULL, NULL, NULL }; |
| 106 | static struct ac97_ops default_ops = { NULL, eapd_control, NULL }; |
| 107 | static struct ac97_ops default_digital_ops = { NULL, eapd_control, generic_digital_control}; |
| 108 | static struct ac97_ops wolfson_ops03 = { wolfson_init03, NULL, NULL }; |
| 109 | static struct ac97_ops wolfson_ops04 = { wolfson_init04, NULL, NULL }; |
| 110 | static struct ac97_ops wolfson_ops05 = { wolfson_init05, NULL, NULL }; |
| 111 | static struct ac97_ops wolfson_ops11 = { wolfson_init11, NULL, NULL }; |
| 112 | static struct ac97_ops wolfson_ops13 = { wolfson_init13, NULL, NULL }; |
| 113 | static struct ac97_ops tritech_ops = { tritech_init, NULL, NULL }; |
| 114 | static struct ac97_ops tritech_m_ops = { tritech_maestro_init, NULL, NULL }; |
| 115 | static struct ac97_ops sigmatel_9708_ops = { sigmatel_9708_init, NULL, NULL }; |
| 116 | static struct ac97_ops sigmatel_9721_ops = { sigmatel_9721_init, NULL, NULL }; |
| 117 | static struct ac97_ops sigmatel_9744_ops = { sigmatel_9744_init, NULL, NULL }; |
| 118 | static struct ac97_ops crystal_digital_ops = { NULL, eapd_control, crystal_digital_control }; |
| 119 | static struct ac97_ops ad1886_ops = { ad1886_init, eapd_control, NULL }; |
| 120 | static struct ac97_ops cmedia_ops = { NULL, eapd_control, NULL}; |
| 121 | static struct ac97_ops cmedia_digital_ops = { cmedia_init, eapd_control, cmedia_digital_control}; |
| 122 | |
| 123 | /* sorted by vendor/device id */ |
| 124 | static const struct { |
| 125 | u32 id; |
| 126 | char *name; |
| 127 | struct ac97_ops *ops; |
| 128 | int flags; |
| 129 | } ac97_codec_ids[] = { |
| 130 | {0x41445303, "Analog Devices AD1819", &null_ops}, |
| 131 | {0x41445340, "Analog Devices AD1881", &null_ops}, |
| 132 | {0x41445348, "Analog Devices AD1881A", &null_ops}, |
| 133 | {0x41445360, "Analog Devices AD1885", &default_ops}, |
| 134 | {0x41445361, "Analog Devices AD1886", &ad1886_ops}, |
| 135 | {0x41445370, "Analog Devices AD1981", &null_ops}, |
| 136 | {0x41445372, "Analog Devices AD1981A", &null_ops}, |
| 137 | {0x41445374, "Analog Devices AD1981B", &null_ops}, |
| 138 | {0x41445460, "Analog Devices AD1885", &default_ops}, |
| 139 | {0x41445461, "Analog Devices AD1886", &ad1886_ops}, |
| 140 | {0x414B4D00, "Asahi Kasei AK4540", &null_ops}, |
| 141 | {0x414B4D01, "Asahi Kasei AK4542", &null_ops}, |
| 142 | {0x414B4D02, "Asahi Kasei AK4543", &null_ops}, |
| 143 | {0x414C4326, "ALC100P", &null_ops}, |
| 144 | {0x414C4710, "ALC200/200P", &null_ops}, |
| 145 | {0x414C4720, "ALC650", &default_digital_ops}, |
| 146 | {0x434D4941, "CMedia", &cmedia_ops, AC97_NO_PCM_VOLUME }, |
| 147 | {0x434D4942, "CMedia", &cmedia_ops, AC97_NO_PCM_VOLUME }, |
| 148 | {0x434D4961, "CMedia", &cmedia_digital_ops, AC97_NO_PCM_VOLUME }, |
| 149 | {0x43525900, "Cirrus Logic CS4297", &default_ops}, |
| 150 | {0x43525903, "Cirrus Logic CS4297", &default_ops}, |
| 151 | {0x43525913, "Cirrus Logic CS4297A rev A", &default_ops}, |
| 152 | {0x43525914, "Cirrus Logic CS4297A rev B", &default_ops}, |
| 153 | {0x43525923, "Cirrus Logic CS4298", &null_ops}, |
| 154 | {0x4352592B, "Cirrus Logic CS4294", &null_ops}, |
| 155 | {0x4352592D, "Cirrus Logic CS4294", &null_ops}, |
| 156 | {0x43525931, "Cirrus Logic CS4299 rev A", &crystal_digital_ops}, |
| 157 | {0x43525933, "Cirrus Logic CS4299 rev C", &crystal_digital_ops}, |
| 158 | {0x43525934, "Cirrus Logic CS4299 rev D", &crystal_digital_ops}, |
Herbert Xu | becf3ae | 2005-05-05 16:15:08 -0700 | [diff] [blame] | 159 | {0x43585430, "CXT48", &default_ops, AC97_DELUDED_MODEM }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | {0x43585442, "CXT66", &default_ops, AC97_DELUDED_MODEM }, |
| 161 | {0x44543031, "Diamond Technology DT0893", &default_ops}, |
| 162 | {0x45838308, "ESS Allegro ES1988", &null_ops}, |
| 163 | {0x49434511, "ICE1232", &null_ops}, /* I hope --jk */ |
| 164 | {0x4e534331, "National Semiconductor LM4549", &null_ops}, |
| 165 | {0x53494c22, "Silicon Laboratory Si3036", &null_ops}, |
| 166 | {0x53494c23, "Silicon Laboratory Si3038", &null_ops}, |
| 167 | {0x545200FF, "TriTech TR?????", &tritech_m_ops}, |
| 168 | {0x54524102, "TriTech TR28022", &null_ops}, |
| 169 | {0x54524103, "TriTech TR28023", &null_ops}, |
| 170 | {0x54524106, "TriTech TR28026", &null_ops}, |
| 171 | {0x54524108, "TriTech TR28028", &tritech_ops}, |
| 172 | {0x54524123, "TriTech TR A5", &null_ops}, |
| 173 | {0x574D4C03, "Wolfson WM9703/07/08/17", &wolfson_ops03}, |
| 174 | {0x574D4C04, "Wolfson WM9704M/WM9704Q", &wolfson_ops04}, |
| 175 | {0x574D4C05, "Wolfson WM9705/WM9710", &wolfson_ops05}, |
| 176 | {0x574D4C09, "Wolfson WM9709", &null_ops}, |
| 177 | {0x574D4C12, "Wolfson WM9711/9712", &wolfson_ops11}, |
| 178 | {0x574D4C13, "Wolfson WM9713", &wolfson_ops13, AC97_DEFAULT_POWER_OFF}, |
| 179 | {0x83847600, "SigmaTel STAC????", &null_ops}, |
| 180 | {0x83847604, "SigmaTel STAC9701/3/4/5", &null_ops}, |
| 181 | {0x83847605, "SigmaTel STAC9704", &null_ops}, |
| 182 | {0x83847608, "SigmaTel STAC9708", &sigmatel_9708_ops}, |
| 183 | {0x83847609, "SigmaTel STAC9721/23", &sigmatel_9721_ops}, |
| 184 | {0x83847644, "SigmaTel STAC9744/45", &sigmatel_9744_ops}, |
| 185 | {0x83847652, "SigmaTel STAC9752/53", &default_ops}, |
| 186 | {0x83847656, "SigmaTel STAC9756/57", &sigmatel_9744_ops}, |
| 187 | {0x83847666, "SigmaTel STAC9750T", &sigmatel_9744_ops}, |
| 188 | {0x83847684, "SigmaTel STAC9783/84?", &null_ops}, |
| 189 | {0x57454301, "Winbond 83971D", &null_ops}, |
| 190 | }; |
| 191 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | /* this table has default mixer values for all OSS mixers. */ |
| 193 | static struct mixer_defaults { |
| 194 | int mixer; |
| 195 | unsigned int value; |
| 196 | } mixer_defaults[SOUND_MIXER_NRDEVICES] = { |
| 197 | /* all values 0 -> 100 in bytes */ |
| 198 | {SOUND_MIXER_VOLUME, 0x4343}, |
| 199 | {SOUND_MIXER_BASS, 0x4343}, |
| 200 | {SOUND_MIXER_TREBLE, 0x4343}, |
| 201 | {SOUND_MIXER_PCM, 0x4343}, |
| 202 | {SOUND_MIXER_SPEAKER, 0x4343}, |
| 203 | {SOUND_MIXER_LINE, 0x4343}, |
| 204 | {SOUND_MIXER_MIC, 0x0000}, |
| 205 | {SOUND_MIXER_CD, 0x4343}, |
| 206 | {SOUND_MIXER_ALTPCM, 0x4343}, |
| 207 | {SOUND_MIXER_IGAIN, 0x4343}, |
| 208 | {SOUND_MIXER_LINE1, 0x4343}, |
| 209 | {SOUND_MIXER_PHONEIN, 0x4343}, |
| 210 | {SOUND_MIXER_PHONEOUT, 0x4343}, |
| 211 | {SOUND_MIXER_VIDEO, 0x4343}, |
| 212 | {-1,0} |
| 213 | }; |
| 214 | |
| 215 | /* table to scale scale from OSS mixer value to AC97 mixer register value */ |
| 216 | static struct ac97_mixer_hw { |
| 217 | unsigned char offset; |
| 218 | int scale; |
| 219 | } ac97_hw[SOUND_MIXER_NRDEVICES]= { |
| 220 | [SOUND_MIXER_VOLUME] = {AC97_MASTER_VOL_STEREO,64}, |
| 221 | [SOUND_MIXER_BASS] = {AC97_MASTER_TONE, 16}, |
| 222 | [SOUND_MIXER_TREBLE] = {AC97_MASTER_TONE, 16}, |
| 223 | [SOUND_MIXER_PCM] = {AC97_PCMOUT_VOL, 32}, |
| 224 | [SOUND_MIXER_SPEAKER] = {AC97_PCBEEP_VOL, 16}, |
| 225 | [SOUND_MIXER_LINE] = {AC97_LINEIN_VOL, 32}, |
| 226 | [SOUND_MIXER_MIC] = {AC97_MIC_VOL, 32}, |
| 227 | [SOUND_MIXER_CD] = {AC97_CD_VOL, 32}, |
| 228 | [SOUND_MIXER_ALTPCM] = {AC97_HEADPHONE_VOL, 64}, |
| 229 | [SOUND_MIXER_IGAIN] = {AC97_RECORD_GAIN, 16}, |
| 230 | [SOUND_MIXER_LINE1] = {AC97_AUX_VOL, 32}, |
| 231 | [SOUND_MIXER_PHONEIN] = {AC97_PHONE_VOL, 32}, |
| 232 | [SOUND_MIXER_PHONEOUT] = {AC97_MASTER_VOL_MONO, 64}, |
| 233 | [SOUND_MIXER_VIDEO] = {AC97_VIDEO_VOL, 32}, |
| 234 | }; |
| 235 | |
| 236 | /* the following tables allow us to go from OSS <-> ac97 quickly. */ |
| 237 | enum ac97_recsettings { |
| 238 | AC97_REC_MIC=0, |
| 239 | AC97_REC_CD, |
| 240 | AC97_REC_VIDEO, |
| 241 | AC97_REC_AUX, |
| 242 | AC97_REC_LINE, |
| 243 | AC97_REC_STEREO, /* combination of all enabled outputs.. */ |
| 244 | AC97_REC_MONO, /*.. or the mono equivalent */ |
| 245 | AC97_REC_PHONE |
| 246 | }; |
| 247 | |
| 248 | static const unsigned int ac97_rm2oss[] = { |
| 249 | [AC97_REC_MIC] = SOUND_MIXER_MIC, |
| 250 | [AC97_REC_CD] = SOUND_MIXER_CD, |
| 251 | [AC97_REC_VIDEO] = SOUND_MIXER_VIDEO, |
| 252 | [AC97_REC_AUX] = SOUND_MIXER_LINE1, |
| 253 | [AC97_REC_LINE] = SOUND_MIXER_LINE, |
| 254 | [AC97_REC_STEREO]= SOUND_MIXER_IGAIN, |
| 255 | [AC97_REC_PHONE] = SOUND_MIXER_PHONEIN |
| 256 | }; |
| 257 | |
| 258 | /* indexed by bit position */ |
| 259 | static const unsigned int ac97_oss_rm[] = { |
| 260 | [SOUND_MIXER_MIC] = AC97_REC_MIC, |
| 261 | [SOUND_MIXER_CD] = AC97_REC_CD, |
| 262 | [SOUND_MIXER_VIDEO] = AC97_REC_VIDEO, |
| 263 | [SOUND_MIXER_LINE1] = AC97_REC_AUX, |
| 264 | [SOUND_MIXER_LINE] = AC97_REC_LINE, |
| 265 | [SOUND_MIXER_IGAIN] = AC97_REC_STEREO, |
| 266 | [SOUND_MIXER_PHONEIN] = AC97_REC_PHONE |
| 267 | }; |
| 268 | |
| 269 | static LIST_HEAD(codecs); |
| 270 | static LIST_HEAD(codec_drivers); |
Ingo Molnar | f82945d | 2006-03-23 03:00:47 -0800 | [diff] [blame] | 271 | static DEFINE_MUTEX(codec_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | |
| 273 | /* reads the given OSS mixer from the ac97 the caller must have insured that the ac97 knows |
| 274 | about that given mixer, and should be holding a spinlock for the card */ |
| 275 | static int ac97_read_mixer(struct ac97_codec *codec, int oss_channel) |
| 276 | { |
| 277 | u16 val; |
| 278 | int ret = 0; |
| 279 | int scale; |
| 280 | struct ac97_mixer_hw *mh = &ac97_hw[oss_channel]; |
| 281 | |
| 282 | val = codec->codec_read(codec , mh->offset); |
| 283 | |
| 284 | if (val & AC97_MUTE) { |
| 285 | ret = 0; |
| 286 | } else if (AC97_STEREO_MASK & (1 << oss_channel)) { |
| 287 | /* nice stereo mixers .. */ |
| 288 | int left,right; |
| 289 | |
| 290 | left = (val >> 8) & 0x7f; |
| 291 | right = val & 0x7f; |
| 292 | |
| 293 | if (oss_channel == SOUND_MIXER_IGAIN) { |
| 294 | right = (right * 100) / mh->scale; |
| 295 | left = (left * 100) / mh->scale; |
| 296 | } else { |
| 297 | /* these may have 5 or 6 bit resolution */ |
| 298 | if(oss_channel == SOUND_MIXER_VOLUME || oss_channel == SOUND_MIXER_ALTPCM) |
| 299 | scale = (1 << codec->bit_resolution); |
| 300 | else |
| 301 | scale = mh->scale; |
| 302 | |
| 303 | right = 100 - ((right * 100) / scale); |
| 304 | left = 100 - ((left * 100) / scale); |
| 305 | } |
| 306 | ret = left | (right << 8); |
| 307 | } else if (oss_channel == SOUND_MIXER_SPEAKER) { |
| 308 | ret = 100 - ((((val & 0x1e)>>1) * 100) / mh->scale); |
| 309 | } else if (oss_channel == SOUND_MIXER_PHONEIN) { |
| 310 | ret = 100 - (((val & 0x1f) * 100) / mh->scale); |
| 311 | } else if (oss_channel == SOUND_MIXER_PHONEOUT) { |
| 312 | scale = (1 << codec->bit_resolution); |
| 313 | ret = 100 - (((val & 0x1f) * 100) / scale); |
| 314 | } else if (oss_channel == SOUND_MIXER_MIC) { |
| 315 | ret = 100 - (((val & 0x1f) * 100) / mh->scale); |
| 316 | /* the low bit is optional in the tone sliders and masking |
| 317 | it lets us avoid the 0xf 'bypass'.. */ |
| 318 | } else if (oss_channel == SOUND_MIXER_BASS) { |
| 319 | ret = 100 - ((((val >> 8) & 0xe) * 100) / mh->scale); |
| 320 | } else if (oss_channel == SOUND_MIXER_TREBLE) { |
| 321 | ret = 100 - (((val & 0xe) * 100) / mh->scale); |
| 322 | } |
| 323 | |
| 324 | #ifdef DEBUG |
| 325 | printk("ac97_codec: read OSS mixer %2d (%s ac97 register 0x%02x), " |
| 326 | "0x%04x -> 0x%04x\n", |
| 327 | oss_channel, codec->id ? "Secondary" : "Primary", |
| 328 | mh->offset, val, ret); |
| 329 | #endif |
| 330 | |
| 331 | return ret; |
| 332 | } |
| 333 | |
| 334 | /* write the OSS encoded volume to the given OSS encoded mixer, again caller's job to |
| 335 | make sure all is well in arg land, call with spinlock held */ |
| 336 | static void ac97_write_mixer(struct ac97_codec *codec, int oss_channel, |
| 337 | unsigned int left, unsigned int right) |
| 338 | { |
| 339 | u16 val = 0; |
| 340 | int scale; |
| 341 | struct ac97_mixer_hw *mh = &ac97_hw[oss_channel]; |
| 342 | |
| 343 | #ifdef DEBUG |
| 344 | printk("ac97_codec: wrote OSS mixer %2d (%s ac97 register 0x%02x), " |
| 345 | "left vol:%2d, right vol:%2d:", |
| 346 | oss_channel, codec->id ? "Secondary" : "Primary", |
| 347 | mh->offset, left, right); |
| 348 | #endif |
| 349 | |
| 350 | if (AC97_STEREO_MASK & (1 << oss_channel)) { |
| 351 | /* stereo mixers */ |
| 352 | if (left == 0 && right == 0) { |
| 353 | val = AC97_MUTE; |
| 354 | } else { |
| 355 | if (oss_channel == SOUND_MIXER_IGAIN) { |
| 356 | right = (right * mh->scale) / 100; |
| 357 | left = (left * mh->scale) / 100; |
| 358 | if (right >= mh->scale) |
| 359 | right = mh->scale-1; |
| 360 | if (left >= mh->scale) |
| 361 | left = mh->scale-1; |
| 362 | } else { |
| 363 | /* these may have 5 or 6 bit resolution */ |
| 364 | if (oss_channel == SOUND_MIXER_VOLUME || |
| 365 | oss_channel == SOUND_MIXER_ALTPCM) |
| 366 | scale = (1 << codec->bit_resolution); |
| 367 | else |
| 368 | scale = mh->scale; |
| 369 | |
| 370 | right = ((100 - right) * scale) / 100; |
| 371 | left = ((100 - left) * scale) / 100; |
| 372 | if (right >= scale) |
| 373 | right = scale-1; |
| 374 | if (left >= scale) |
| 375 | left = scale-1; |
| 376 | } |
| 377 | val = (left << 8) | right; |
| 378 | } |
| 379 | } else if (oss_channel == SOUND_MIXER_BASS) { |
| 380 | val = codec->codec_read(codec , mh->offset) & ~0x0f00; |
| 381 | left = ((100 - left) * mh->scale) / 100; |
| 382 | if (left >= mh->scale) |
| 383 | left = mh->scale-1; |
| 384 | val |= (left << 8) & 0x0e00; |
| 385 | } else if (oss_channel == SOUND_MIXER_TREBLE) { |
| 386 | val = codec->codec_read(codec , mh->offset) & ~0x000f; |
| 387 | left = ((100 - left) * mh->scale) / 100; |
| 388 | if (left >= mh->scale) |
| 389 | left = mh->scale-1; |
| 390 | val |= left & 0x000e; |
| 391 | } else if(left == 0) { |
| 392 | val = AC97_MUTE; |
| 393 | } else if (oss_channel == SOUND_MIXER_SPEAKER) { |
| 394 | left = ((100 - left) * mh->scale) / 100; |
| 395 | if (left >= mh->scale) |
| 396 | left = mh->scale-1; |
| 397 | val = left << 1; |
| 398 | } else if (oss_channel == SOUND_MIXER_PHONEIN) { |
| 399 | left = ((100 - left) * mh->scale) / 100; |
| 400 | if (left >= mh->scale) |
| 401 | left = mh->scale-1; |
| 402 | val = left; |
| 403 | } else if (oss_channel == SOUND_MIXER_PHONEOUT) { |
| 404 | scale = (1 << codec->bit_resolution); |
| 405 | left = ((100 - left) * scale) / 100; |
| 406 | if (left >= mh->scale) |
| 407 | left = mh->scale-1; |
| 408 | val = left; |
| 409 | } else if (oss_channel == SOUND_MIXER_MIC) { |
| 410 | val = codec->codec_read(codec , mh->offset) & ~0x801f; |
| 411 | left = ((100 - left) * mh->scale) / 100; |
| 412 | if (left >= mh->scale) |
| 413 | left = mh->scale-1; |
| 414 | val |= left; |
| 415 | /* the low bit is optional in the tone sliders and masking |
| 416 | it lets us avoid the 0xf 'bypass'.. */ |
| 417 | } |
| 418 | #ifdef DEBUG |
| 419 | printk(" 0x%04x", val); |
| 420 | #endif |
| 421 | |
| 422 | codec->codec_write(codec, mh->offset, val); |
| 423 | |
| 424 | #ifdef DEBUG |
| 425 | val = codec->codec_read(codec, mh->offset); |
| 426 | printk(" -> 0x%04x\n", val); |
| 427 | #endif |
| 428 | } |
| 429 | |
| 430 | /* a thin wrapper for write_mixer */ |
| 431 | static void ac97_set_mixer(struct ac97_codec *codec, unsigned int oss_mixer, unsigned int val ) |
| 432 | { |
| 433 | unsigned int left,right; |
| 434 | |
| 435 | /* cleanse input a little */ |
| 436 | right = ((val >> 8) & 0xff) ; |
| 437 | left = (val & 0xff) ; |
| 438 | |
| 439 | if (right > 100) right = 100; |
| 440 | if (left > 100) left = 100; |
| 441 | |
| 442 | codec->mixer_state[oss_mixer] = (right << 8) | left; |
| 443 | codec->write_mixer(codec, oss_mixer, left, right); |
| 444 | } |
| 445 | |
| 446 | /* read or write the recmask, the ac97 can really have left and right recording |
| 447 | inputs independantly set, but OSS doesn't seem to want us to express that to |
| 448 | the user. the caller guarantees that we have a supported bit set, and they |
| 449 | must be holding the card's spinlock */ |
| 450 | static int ac97_recmask_io(struct ac97_codec *codec, int rw, int mask) |
| 451 | { |
| 452 | unsigned int val; |
| 453 | |
| 454 | if (rw) { |
| 455 | /* read it from the card */ |
| 456 | val = codec->codec_read(codec, AC97_RECORD_SELECT); |
| 457 | #ifdef DEBUG |
| 458 | printk("ac97_codec: ac97 recmask to set to 0x%04x\n", val); |
| 459 | #endif |
| 460 | return (1 << ac97_rm2oss[val & 0x07]); |
| 461 | } |
| 462 | |
| 463 | /* else, write the first set in the mask as the |
| 464 | output */ |
| 465 | /* clear out current set value first (AC97 supports only 1 input!) */ |
| 466 | val = (1 << ac97_rm2oss[codec->codec_read(codec, AC97_RECORD_SELECT) & 0x07]); |
| 467 | if (mask != val) |
| 468 | mask &= ~val; |
| 469 | |
| 470 | val = ffs(mask); |
| 471 | val = ac97_oss_rm[val-1]; |
| 472 | val |= val << 8; /* set both channels */ |
| 473 | |
| 474 | #ifdef DEBUG |
| 475 | printk("ac97_codec: setting ac97 recmask to 0x%04x\n", val); |
| 476 | #endif |
| 477 | |
| 478 | codec->codec_write(codec, AC97_RECORD_SELECT, val); |
| 479 | |
| 480 | return 0; |
| 481 | }; |
| 482 | |
| 483 | static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg) |
| 484 | { |
| 485 | int i, val = 0; |
| 486 | |
| 487 | if (cmd == SOUND_MIXER_INFO) { |
| 488 | mixer_info info; |
| 489 | memset(&info, 0, sizeof(info)); |
| 490 | strlcpy(info.id, codec->name, sizeof(info.id)); |
| 491 | strlcpy(info.name, codec->name, sizeof(info.name)); |
| 492 | info.modify_counter = codec->modcnt; |
| 493 | if (copy_to_user((void __user *)arg, &info, sizeof(info))) |
| 494 | return -EFAULT; |
| 495 | return 0; |
| 496 | } |
| 497 | if (cmd == SOUND_OLD_MIXER_INFO) { |
| 498 | _old_mixer_info info; |
| 499 | memset(&info, 0, sizeof(info)); |
| 500 | strlcpy(info.id, codec->name, sizeof(info.id)); |
| 501 | strlcpy(info.name, codec->name, sizeof(info.name)); |
| 502 | if (copy_to_user((void __user *)arg, &info, sizeof(info))) |
| 503 | return -EFAULT; |
| 504 | return 0; |
| 505 | } |
| 506 | |
| 507 | if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int)) |
| 508 | return -EINVAL; |
| 509 | |
| 510 | if (cmd == OSS_GETVERSION) |
| 511 | return put_user(SOUND_VERSION, (int __user *)arg); |
| 512 | |
| 513 | if (_SIOC_DIR(cmd) == _SIOC_READ) { |
| 514 | switch (_IOC_NR(cmd)) { |
| 515 | case SOUND_MIXER_RECSRC: /* give them the current record source */ |
| 516 | if (!codec->recmask_io) { |
| 517 | val = 0; |
| 518 | } else { |
| 519 | val = codec->recmask_io(codec, 1, 0); |
| 520 | } |
| 521 | break; |
| 522 | |
| 523 | case SOUND_MIXER_DEVMASK: /* give them the supported mixers */ |
| 524 | val = codec->supported_mixers; |
| 525 | break; |
| 526 | |
| 527 | case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */ |
| 528 | val = codec->record_sources; |
| 529 | break; |
| 530 | |
| 531 | case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */ |
| 532 | val = codec->stereo_mixers; |
| 533 | break; |
| 534 | |
| 535 | case SOUND_MIXER_CAPS: |
| 536 | val = SOUND_CAP_EXCL_INPUT; |
| 537 | break; |
| 538 | |
| 539 | default: /* read a specific mixer */ |
| 540 | i = _IOC_NR(cmd); |
| 541 | |
| 542 | if (!supported_mixer(codec, i)) |
| 543 | return -EINVAL; |
| 544 | |
| 545 | /* do we ever want to touch the hardware? */ |
| 546 | /* val = codec->read_mixer(codec, i); */ |
| 547 | val = codec->mixer_state[i]; |
| 548 | break; |
| 549 | } |
| 550 | return put_user(val, (int __user *)arg); |
| 551 | } |
| 552 | |
| 553 | if (_SIOC_DIR(cmd) == (_SIOC_WRITE|_SIOC_READ)) { |
| 554 | codec->modcnt++; |
| 555 | if (get_user(val, (int __user *)arg)) |
| 556 | return -EFAULT; |
| 557 | |
| 558 | switch (_IOC_NR(cmd)) { |
| 559 | case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */ |
| 560 | if (!codec->recmask_io) return -EINVAL; |
| 561 | if (!val) return 0; |
| 562 | if (!(val &= codec->record_sources)) return -EINVAL; |
| 563 | |
| 564 | codec->recmask_io(codec, 0, val); |
| 565 | |
| 566 | return 0; |
| 567 | default: /* write a specific mixer */ |
| 568 | i = _IOC_NR(cmd); |
| 569 | |
| 570 | if (!supported_mixer(codec, i)) |
| 571 | return -EINVAL; |
| 572 | |
| 573 | ac97_set_mixer(codec, i, val); |
| 574 | |
| 575 | return 0; |
| 576 | } |
| 577 | } |
| 578 | return -EINVAL; |
| 579 | } |
| 580 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | /** |
| 582 | * codec_id - Turn id1/id2 into a PnP string |
| 583 | * @id1: Vendor ID1 |
| 584 | * @id2: Vendor ID2 |
| 585 | * @buf: CODEC_ID_BUFSZ byte buffer |
| 586 | * |
| 587 | * Fills buf with a zero terminated PnP ident string for the id1/id2 |
| 588 | * pair. For convenience the return is the passed in buffer pointer. |
| 589 | */ |
| 590 | |
| 591 | static char *codec_id(u16 id1, u16 id2, char *buf) |
| 592 | { |
| 593 | if(id1&0x8080) { |
| 594 | snprintf(buf, CODEC_ID_BUFSZ, "0x%04x:0x%04x", id1, id2); |
| 595 | } else { |
| 596 | buf[0] = (id1 >> 8); |
| 597 | buf[1] = (id1 & 0xFF); |
| 598 | buf[2] = (id2 >> 8); |
| 599 | snprintf(buf+3, CODEC_ID_BUFSZ - 3, "%d", id2&0xFF); |
| 600 | } |
| 601 | return buf; |
| 602 | } |
| 603 | |
| 604 | /** |
| 605 | * ac97_check_modem - Check if the Codec is a modem |
| 606 | * @codec: codec to check |
| 607 | * |
| 608 | * Return true if the device is an AC97 1.0 or AC97 2.0 modem |
| 609 | */ |
| 610 | |
| 611 | static int ac97_check_modem(struct ac97_codec *codec) |
| 612 | { |
| 613 | /* Check for an AC97 1.0 soft modem (ID1) */ |
| 614 | if(codec->codec_read(codec, AC97_RESET) & 2) |
| 615 | return 1; |
| 616 | /* Check for an AC97 2.x soft modem */ |
| 617 | codec->codec_write(codec, AC97_EXTENDED_MODEM_ID, 0L); |
| 618 | if(codec->codec_read(codec, AC97_EXTENDED_MODEM_ID) & 1) |
| 619 | return 1; |
| 620 | return 0; |
| 621 | } |
| 622 | |
| 623 | |
| 624 | /** |
| 625 | * ac97_alloc_codec - Allocate an AC97 codec |
| 626 | * |
| 627 | * Returns a new AC97 codec structure. AC97 codecs may become |
| 628 | * refcounted soon so this interface is needed. Returns with |
| 629 | * one reference taken. |
| 630 | */ |
| 631 | |
| 632 | struct ac97_codec *ac97_alloc_codec(void) |
| 633 | { |
Robert P. J. Day | 3159f06 | 2007-02-14 00:33:16 -0800 | [diff] [blame] | 634 | struct ac97_codec *codec = kzalloc(sizeof(struct ac97_codec), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | if(!codec) |
| 636 | return NULL; |
| 637 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | spin_lock_init(&codec->lock); |
| 639 | INIT_LIST_HEAD(&codec->list); |
| 640 | return codec; |
| 641 | } |
| 642 | |
| 643 | EXPORT_SYMBOL(ac97_alloc_codec); |
| 644 | |
| 645 | /** |
| 646 | * ac97_release_codec - Release an AC97 codec |
| 647 | * @codec: codec to release |
| 648 | * |
| 649 | * Release an allocated AC97 codec. This will be refcounted in |
| 650 | * time but for the moment is trivial. Calls the unregister |
| 651 | * handler if the codec is now defunct. |
| 652 | */ |
| 653 | |
| 654 | void ac97_release_codec(struct ac97_codec *codec) |
| 655 | { |
| 656 | /* Remove from the list first, we don't want to be |
| 657 | "rediscovered" */ |
Ingo Molnar | f82945d | 2006-03-23 03:00:47 -0800 | [diff] [blame] | 658 | mutex_lock(&codec_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | list_del(&codec->list); |
Ingo Molnar | f82945d | 2006-03-23 03:00:47 -0800 | [diff] [blame] | 660 | mutex_unlock(&codec_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | /* |
| 662 | * The driver needs to deal with internal |
| 663 | * locking to avoid accidents here. |
| 664 | */ |
| 665 | if(codec->driver) |
| 666 | codec->driver->remove(codec, codec->driver); |
| 667 | kfree(codec); |
| 668 | } |
| 669 | |
| 670 | EXPORT_SYMBOL(ac97_release_codec); |
| 671 | |
| 672 | /** |
| 673 | * ac97_probe_codec - Initialize and setup AC97-compatible codec |
| 674 | * @codec: (in/out) Kernel info for a single AC97 codec |
| 675 | * |
| 676 | * Reset the AC97 codec, then initialize the mixer and |
| 677 | * the rest of the @codec structure. |
| 678 | * |
| 679 | * The codec_read and codec_write fields of @codec are |
| 680 | * required to be setup and working when this function |
| 681 | * is called. All other fields are set by this function. |
| 682 | * |
| 683 | * codec_wait field of @codec can optionally be provided |
| 684 | * when calling this function. If codec_wait is not %NULL, |
| 685 | * this function will call codec_wait any time it is |
| 686 | * necessary to wait for the audio chip to reach the |
| 687 | * codec-ready state. If codec_wait is %NULL, then |
| 688 | * the default behavior is to call schedule_timeout. |
| 689 | * Currently codec_wait is used to wait for AC97 codec |
| 690 | * reset to complete. |
| 691 | * |
| 692 | * Some codecs will power down when a register reset is |
| 693 | * performed. We now check for such codecs. |
| 694 | * |
| 695 | * Returns 1 (true) on success, or 0 (false) on failure. |
| 696 | */ |
| 697 | |
| 698 | int ac97_probe_codec(struct ac97_codec *codec) |
| 699 | { |
| 700 | u16 id1, id2; |
| 701 | u16 audio; |
| 702 | int i; |
| 703 | char cidbuf[CODEC_ID_BUFSZ]; |
| 704 | u16 f; |
| 705 | struct list_head *l; |
| 706 | struct ac97_driver *d; |
| 707 | |
| 708 | /* wait for codec-ready state */ |
| 709 | if (codec->codec_wait) |
| 710 | codec->codec_wait(codec); |
| 711 | else |
| 712 | udelay(10); |
| 713 | |
| 714 | /* will the codec power down if register reset ? */ |
| 715 | id1 = codec->codec_read(codec, AC97_VENDOR_ID1); |
| 716 | id2 = codec->codec_read(codec, AC97_VENDOR_ID2); |
| 717 | codec->name = NULL; |
| 718 | codec->codec_ops = &null_ops; |
| 719 | for (i = 0; i < ARRAY_SIZE(ac97_codec_ids); i++) { |
| 720 | if (ac97_codec_ids[i].id == ((id1 << 16) | id2)) { |
| 721 | codec->type = ac97_codec_ids[i].id; |
| 722 | codec->name = ac97_codec_ids[i].name; |
| 723 | codec->codec_ops = ac97_codec_ids[i].ops; |
| 724 | codec->flags = ac97_codec_ids[i].flags; |
| 725 | break; |
| 726 | } |
| 727 | } |
| 728 | |
| 729 | codec->model = (id1 << 16) | id2; |
| 730 | if ((codec->flags & AC97_DEFAULT_POWER_OFF) == 0) { |
| 731 | /* reset codec and wait for the ready bit before we continue */ |
| 732 | codec->codec_write(codec, AC97_RESET, 0L); |
| 733 | if (codec->codec_wait) |
| 734 | codec->codec_wait(codec); |
| 735 | else |
| 736 | udelay(10); |
| 737 | } |
| 738 | |
| 739 | /* probing AC97 codec, AC97 2.0 says that bit 15 of register 0x00 (reset) should |
| 740 | * be read zero. |
| 741 | * |
| 742 | * FIXME: is the following comment outdated? -jgarzik |
| 743 | * Probing of AC97 in this way is not reliable, it is not even SAFE !! |
| 744 | */ |
| 745 | if ((audio = codec->codec_read(codec, AC97_RESET)) & 0x8000) { |
| 746 | printk(KERN_ERR "ac97_codec: %s ac97 codec not present\n", |
| 747 | (codec->id & 0x2) ? (codec->id&1 ? "4th" : "Tertiary") |
| 748 | : (codec->id&1 ? "Secondary": "Primary")); |
| 749 | return 0; |
| 750 | } |
| 751 | |
| 752 | /* probe for Modem Codec */ |
| 753 | codec->modem = ac97_check_modem(codec); |
| 754 | |
| 755 | /* enable SPDIF */ |
| 756 | f = codec->codec_read(codec, AC97_EXTENDED_STATUS); |
| 757 | if((codec->codec_ops == &null_ops) && (f & 4)) |
| 758 | codec->codec_ops = &default_digital_ops; |
| 759 | |
| 760 | /* A device which thinks its a modem but isnt */ |
| 761 | if(codec->flags & AC97_DELUDED_MODEM) |
| 762 | codec->modem = 0; |
| 763 | |
| 764 | if (codec->name == NULL) |
| 765 | codec->name = "Unknown"; |
| 766 | printk(KERN_INFO "ac97_codec: AC97 %s codec, id: %s (%s)\n", |
| 767 | codec->modem ? "Modem" : (audio ? "Audio" : ""), |
| 768 | codec_id(id1, id2, cidbuf), codec->name); |
| 769 | |
| 770 | if(!ac97_init_mixer(codec)) |
| 771 | return 0; |
| 772 | |
| 773 | /* |
| 774 | * Attach last so the caller can override the mixer |
| 775 | * callbacks. |
| 776 | */ |
| 777 | |
Ingo Molnar | f82945d | 2006-03-23 03:00:47 -0800 | [diff] [blame] | 778 | mutex_lock(&codec_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | list_add(&codec->list, &codecs); |
| 780 | |
| 781 | list_for_each(l, &codec_drivers) { |
| 782 | d = list_entry(l, struct ac97_driver, list); |
| 783 | if ((codec->model ^ d->codec_id) & d->codec_mask) |
| 784 | continue; |
| 785 | if(d->probe(codec, d) == 0) |
| 786 | { |
| 787 | codec->driver = d; |
| 788 | break; |
| 789 | } |
| 790 | } |
| 791 | |
Ingo Molnar | f82945d | 2006-03-23 03:00:47 -0800 | [diff] [blame] | 792 | mutex_unlock(&codec_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | return 1; |
| 794 | } |
| 795 | |
| 796 | static int ac97_init_mixer(struct ac97_codec *codec) |
| 797 | { |
| 798 | u16 cap; |
| 799 | int i; |
| 800 | |
| 801 | cap = codec->codec_read(codec, AC97_RESET); |
| 802 | |
| 803 | /* mixer masks */ |
| 804 | codec->supported_mixers = AC97_SUPPORTED_MASK; |
| 805 | codec->stereo_mixers = AC97_STEREO_MASK; |
| 806 | codec->record_sources = AC97_RECORD_MASK; |
| 807 | if (!(cap & 0x04)) |
| 808 | codec->supported_mixers &= ~(SOUND_MASK_BASS|SOUND_MASK_TREBLE); |
| 809 | if (!(cap & 0x10)) |
| 810 | codec->supported_mixers &= ~SOUND_MASK_ALTPCM; |
| 811 | |
| 812 | |
| 813 | /* detect bit resolution */ |
| 814 | codec->codec_write(codec, AC97_MASTER_VOL_STEREO, 0x2020); |
| 815 | if(codec->codec_read(codec, AC97_MASTER_VOL_STEREO) == 0x2020) |
| 816 | codec->bit_resolution = 6; |
| 817 | else |
| 818 | codec->bit_resolution = 5; |
| 819 | |
| 820 | /* generic OSS to AC97 wrapper */ |
| 821 | codec->read_mixer = ac97_read_mixer; |
| 822 | codec->write_mixer = ac97_write_mixer; |
| 823 | codec->recmask_io = ac97_recmask_io; |
| 824 | codec->mixer_ioctl = ac97_mixer_ioctl; |
| 825 | |
| 826 | /* initialize mixer channel volumes */ |
| 827 | for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { |
| 828 | struct mixer_defaults *md = &mixer_defaults[i]; |
| 829 | if (md->mixer == -1) |
| 830 | break; |
| 831 | if (!supported_mixer(codec, md->mixer)) |
| 832 | continue; |
| 833 | ac97_set_mixer(codec, md->mixer, md->value); |
| 834 | } |
| 835 | |
| 836 | /* codec specific initialization for 4-6 channel output or secondary codec stuff */ |
| 837 | if (codec->codec_ops->init != NULL) { |
| 838 | codec->codec_ops->init(codec); |
| 839 | } |
| 840 | |
| 841 | /* |
| 842 | * Volume is MUTE only on this device. We have to initialise |
| 843 | * it but its useless beyond that. |
| 844 | */ |
| 845 | if(codec->flags & AC97_NO_PCM_VOLUME) |
| 846 | { |
| 847 | codec->supported_mixers &= ~SOUND_MASK_PCM; |
| 848 | printk(KERN_WARNING "AC97 codec does not have proper volume support.\n"); |
| 849 | } |
| 850 | return 1; |
| 851 | } |
| 852 | |
| 853 | #define AC97_SIGMATEL_ANALOG 0x6c /* Analog Special */ |
| 854 | #define AC97_SIGMATEL_DAC2INVERT 0x6e |
| 855 | #define AC97_SIGMATEL_BIAS1 0x70 |
| 856 | #define AC97_SIGMATEL_BIAS2 0x72 |
| 857 | #define AC97_SIGMATEL_MULTICHN 0x74 /* Multi-Channel programming */ |
| 858 | #define AC97_SIGMATEL_CIC1 0x76 |
| 859 | #define AC97_SIGMATEL_CIC2 0x78 |
| 860 | |
| 861 | |
| 862 | static int sigmatel_9708_init(struct ac97_codec * codec) |
| 863 | { |
| 864 | u16 codec72, codec6c; |
| 865 | |
| 866 | codec72 = codec->codec_read(codec, AC97_SIGMATEL_BIAS2) & 0x8000; |
| 867 | codec6c = codec->codec_read(codec, AC97_SIGMATEL_ANALOG); |
| 868 | |
| 869 | if ((codec72==0) && (codec6c==0)) { |
| 870 | codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); |
| 871 | codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x1000); |
| 872 | codec->codec_write(codec, AC97_SIGMATEL_BIAS1, 0xabba); |
| 873 | codec->codec_write(codec, AC97_SIGMATEL_BIAS2, 0x0007); |
| 874 | } else if ((codec72==0x8000) && (codec6c==0)) { |
| 875 | codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); |
| 876 | codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x1001); |
| 877 | codec->codec_write(codec, AC97_SIGMATEL_DAC2INVERT, 0x0008); |
| 878 | } else if ((codec72==0x8000) && (codec6c==0x0080)) { |
| 879 | /* nothing */ |
| 880 | } |
| 881 | codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x0000); |
| 882 | return 0; |
| 883 | } |
| 884 | |
| 885 | |
| 886 | static int sigmatel_9721_init(struct ac97_codec * codec) |
| 887 | { |
| 888 | /* Only set up secondary codec */ |
| 889 | if (codec->id == 0) |
| 890 | return 0; |
| 891 | |
| 892 | codec->codec_write(codec, AC97_SURROUND_MASTER, 0L); |
| 893 | |
| 894 | /* initialize SigmaTel STAC9721/23 as secondary codec, decoding AC link |
| 895 | sloc 3,4 = 0x01, slot 7,8 = 0x00, */ |
| 896 | codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x00); |
| 897 | |
| 898 | /* we don't have the crystal when we are on an AMR card, so use |
| 899 | BIT_CLK as our clock source. Write the magic word ABBA and read |
| 900 | back to enable register 0x78 */ |
| 901 | codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); |
| 902 | codec->codec_read(codec, AC97_SIGMATEL_CIC1); |
| 903 | |
| 904 | /* sync all the clocks*/ |
| 905 | codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x3802); |
| 906 | |
| 907 | return 0; |
| 908 | } |
| 909 | |
| 910 | |
| 911 | static int sigmatel_9744_init(struct ac97_codec * codec) |
| 912 | { |
| 913 | // patch for SigmaTel |
| 914 | codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); |
| 915 | codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x0000); // is this correct? --jk |
| 916 | codec->codec_write(codec, AC97_SIGMATEL_BIAS1, 0xabba); |
| 917 | codec->codec_write(codec, AC97_SIGMATEL_BIAS2, 0x0002); |
| 918 | codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x0000); |
| 919 | return 0; |
| 920 | } |
| 921 | |
| 922 | static int cmedia_init(struct ac97_codec *codec) |
| 923 | { |
| 924 | /* Initialise the CMedia 9739 */ |
| 925 | /* |
| 926 | We could set various options here |
| 927 | Register 0x20 bit 0x100 sets mic as center bass |
| 928 | Also do multi_channel_ctrl &=~0x3000 |=0x1000 |
| 929 | |
| 930 | For now we set up the GPIO and PC beep |
| 931 | */ |
| 932 | |
| 933 | u16 v; |
| 934 | |
| 935 | /* MIC */ |
| 936 | codec->codec_write(codec, 0x64, 0x3000); |
| 937 | v = codec->codec_read(codec, 0x64); |
| 938 | v &= ~0x8000; |
| 939 | codec->codec_write(codec, 0x64, v); |
| 940 | codec->codec_write(codec, 0x70, 0x0100); |
| 941 | codec->codec_write(codec, 0x72, 0x0020); |
| 942 | return 0; |
| 943 | } |
| 944 | |
| 945 | #define AC97_WM97XX_FMIXER_VOL 0x72 |
| 946 | #define AC97_WM97XX_RMIXER_VOL 0x74 |
| 947 | #define AC97_WM97XX_TEST 0x5a |
| 948 | #define AC97_WM9704_RPCM_VOL 0x70 |
| 949 | #define AC97_WM9711_OUT3VOL 0x16 |
| 950 | |
| 951 | static int wolfson_init03(struct ac97_codec * codec) |
| 952 | { |
| 953 | /* this is known to work for the ViewSonic ViewPad 1000 */ |
| 954 | codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); |
| 955 | codec->codec_write(codec, AC97_GENERAL_PURPOSE, 0x8000); |
| 956 | return 0; |
| 957 | } |
| 958 | |
| 959 | static int wolfson_init04(struct ac97_codec * codec) |
| 960 | { |
| 961 | codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); |
| 962 | codec->codec_write(codec, AC97_WM97XX_RMIXER_VOL, 0x0808); |
| 963 | |
| 964 | // patch for DVD noise |
| 965 | codec->codec_write(codec, AC97_WM97XX_TEST, 0x0200); |
| 966 | |
| 967 | // init vol as PCM vol |
| 968 | codec->codec_write(codec, AC97_WM9704_RPCM_VOL, |
| 969 | codec->codec_read(codec, AC97_PCMOUT_VOL)); |
| 970 | |
| 971 | /* set rear surround volume */ |
| 972 | codec->codec_write(codec, AC97_SURROUND_MASTER, 0x0000); |
| 973 | return 0; |
| 974 | } |
| 975 | |
| 976 | /* WM9705, WM9710 */ |
| 977 | static int wolfson_init05(struct ac97_codec * codec) |
| 978 | { |
| 979 | /* set front mixer volume */ |
| 980 | codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); |
| 981 | return 0; |
| 982 | } |
| 983 | |
| 984 | /* WM9711, WM9712 */ |
| 985 | static int wolfson_init11(struct ac97_codec * codec) |
| 986 | { |
| 987 | /* stop pop's during suspend/resume */ |
| 988 | codec->codec_write(codec, AC97_WM97XX_TEST, |
| 989 | codec->codec_read(codec, AC97_WM97XX_TEST) & 0xffbf); |
| 990 | |
| 991 | /* set out3 volume */ |
| 992 | codec->codec_write(codec, AC97_WM9711_OUT3VOL, 0x0808); |
| 993 | return 0; |
| 994 | } |
| 995 | |
| 996 | /* WM9713 */ |
| 997 | static int wolfson_init13(struct ac97_codec * codec) |
| 998 | { |
| 999 | codec->codec_write(codec, AC97_RECORD_GAIN, 0x00a0); |
| 1000 | codec->codec_write(codec, AC97_POWER_CONTROL, 0x0000); |
| 1001 | codec->codec_write(codec, AC97_EXTENDED_MODEM_ID, 0xDA00); |
| 1002 | codec->codec_write(codec, AC97_EXTEND_MODEM_STAT, 0x3810); |
| 1003 | codec->codec_write(codec, AC97_PHONE_VOL, 0x0808); |
| 1004 | codec->codec_write(codec, AC97_PCBEEP_VOL, 0x0808); |
| 1005 | |
| 1006 | return 0; |
| 1007 | } |
| 1008 | |
| 1009 | static int tritech_init(struct ac97_codec * codec) |
| 1010 | { |
| 1011 | codec->codec_write(codec, 0x26, 0x0300); |
| 1012 | codec->codec_write(codec, 0x26, 0x0000); |
| 1013 | codec->codec_write(codec, AC97_SURROUND_MASTER, 0x0000); |
| 1014 | codec->codec_write(codec, AC97_RESERVED_3A, 0x0000); |
| 1015 | return 0; |
| 1016 | } |
| 1017 | |
| 1018 | |
| 1019 | /* copied from drivers/sound/maestro.c */ |
| 1020 | static int tritech_maestro_init(struct ac97_codec * codec) |
| 1021 | { |
| 1022 | /* no idea what this does */ |
| 1023 | codec->codec_write(codec, 0x2A, 0x0001); |
| 1024 | codec->codec_write(codec, 0x2C, 0x0000); |
| 1025 | codec->codec_write(codec, 0x2C, 0XFFFF); |
| 1026 | return 0; |
| 1027 | } |
| 1028 | |
| 1029 | |
| 1030 | |
| 1031 | /* |
| 1032 | * Presario700 workaround |
| 1033 | * for Jack Sense/SPDIF Register mis-setting causing |
| 1034 | * no audible output |
| 1035 | * by Santiago Nullo 04/05/2002 |
| 1036 | */ |
| 1037 | |
| 1038 | #define AC97_AD1886_JACK_SENSE 0x72 |
| 1039 | |
| 1040 | static int ad1886_init(struct ac97_codec * codec) |
| 1041 | { |
| 1042 | /* from AD1886 Specs */ |
| 1043 | codec->codec_write(codec, AC97_AD1886_JACK_SENSE, 0x0010); |
| 1044 | return 0; |
| 1045 | } |
| 1046 | |
| 1047 | |
| 1048 | |
| 1049 | |
| 1050 | /* |
| 1051 | * This is basically standard AC97. It should work as a default for |
| 1052 | * almost all modern codecs. Note that some cards wire EAPD *backwards* |
| 1053 | * That side of it is up to the card driver not us to cope with. |
| 1054 | * |
| 1055 | */ |
| 1056 | |
| 1057 | static int eapd_control(struct ac97_codec * codec, int on) |
| 1058 | { |
| 1059 | if(on) |
| 1060 | codec->codec_write(codec, AC97_POWER_CONTROL, |
| 1061 | codec->codec_read(codec, AC97_POWER_CONTROL)|0x8000); |
| 1062 | else |
| 1063 | codec->codec_write(codec, AC97_POWER_CONTROL, |
| 1064 | codec->codec_read(codec, AC97_POWER_CONTROL)&~0x8000); |
| 1065 | return 0; |
| 1066 | } |
| 1067 | |
| 1068 | static int generic_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) |
| 1069 | { |
| 1070 | u16 reg; |
| 1071 | |
| 1072 | reg = codec->codec_read(codec, AC97_SPDIF_CONTROL); |
| 1073 | |
| 1074 | switch(rate) |
| 1075 | { |
| 1076 | /* Off by default */ |
| 1077 | default: |
| 1078 | case 0: |
| 1079 | reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); |
| 1080 | codec->codec_write(codec, AC97_EXTENDED_STATUS, (reg & ~AC97_EA_SPDIF)); |
| 1081 | if(rate == 0) |
| 1082 | return 0; |
| 1083 | return -EINVAL; |
| 1084 | case 1: |
| 1085 | reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_48K; |
| 1086 | break; |
| 1087 | case 2: |
| 1088 | reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_44K; |
| 1089 | break; |
| 1090 | case 3: |
| 1091 | reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_32K; |
| 1092 | break; |
| 1093 | } |
| 1094 | |
| 1095 | reg &= ~AC97_SC_CC_MASK; |
| 1096 | reg |= (mode & AUDIO_CCMASK) << 6; |
| 1097 | |
| 1098 | if(mode & AUDIO_DIGITAL) |
| 1099 | reg |= 2; |
| 1100 | if(mode & AUDIO_PRO) |
| 1101 | reg |= 1; |
| 1102 | if(mode & AUDIO_DRS) |
| 1103 | reg |= 0x4000; |
| 1104 | |
| 1105 | codec->codec_write(codec, AC97_SPDIF_CONTROL, reg); |
| 1106 | |
| 1107 | reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); |
| 1108 | reg &= (AC97_EA_SLOT_MASK); |
| 1109 | reg |= AC97_EA_VRA | AC97_EA_SPDIF | slots; |
| 1110 | codec->codec_write(codec, AC97_EXTENDED_STATUS, reg); |
| 1111 | |
| 1112 | reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); |
| 1113 | if(!(reg & 0x0400)) |
| 1114 | { |
| 1115 | codec->codec_write(codec, AC97_EXTENDED_STATUS, reg & ~ AC97_EA_SPDIF); |
| 1116 | return -EINVAL; |
| 1117 | } |
| 1118 | return 0; |
| 1119 | } |
| 1120 | |
| 1121 | /* |
| 1122 | * Crystal digital audio control (CS4299) |
| 1123 | */ |
| 1124 | |
| 1125 | static int crystal_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) |
| 1126 | { |
| 1127 | u16 cv; |
| 1128 | |
| 1129 | if(mode & AUDIO_DIGITAL) |
| 1130 | return -EINVAL; |
| 1131 | |
| 1132 | switch(rate) |
| 1133 | { |
| 1134 | case 0: cv = 0x0; break; /* SPEN off */ |
| 1135 | case 48000: cv = 0x8004; break; /* 48KHz digital */ |
| 1136 | case 44100: cv = 0x8104; break; /* 44.1KHz digital */ |
| 1137 | case 32768: /* 32Khz */ |
| 1138 | default: |
| 1139 | return -EINVAL; |
| 1140 | } |
| 1141 | codec->codec_write(codec, 0x68, cv); |
| 1142 | return 0; |
| 1143 | } |
| 1144 | |
| 1145 | /* |
| 1146 | * CMedia digital audio control |
| 1147 | * Needs more work. |
| 1148 | */ |
| 1149 | |
| 1150 | static int cmedia_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) |
| 1151 | { |
| 1152 | u16 cv; |
| 1153 | |
| 1154 | if(mode & AUDIO_DIGITAL) |
| 1155 | return -EINVAL; |
| 1156 | |
| 1157 | switch(rate) |
| 1158 | { |
| 1159 | case 0: cv = 0x0001; break; /* SPEN off */ |
| 1160 | case 48000: cv = 0x0009; break; /* 48KHz digital */ |
| 1161 | default: |
| 1162 | return -EINVAL; |
| 1163 | } |
| 1164 | codec->codec_write(codec, 0x2A, 0x05c4); |
| 1165 | codec->codec_write(codec, 0x6C, cv); |
| 1166 | |
| 1167 | /* Switch on mix to surround */ |
| 1168 | cv = codec->codec_read(codec, 0x64); |
| 1169 | cv &= ~0x0200; |
| 1170 | if(mode) |
| 1171 | cv |= 0x0200; |
| 1172 | codec->codec_write(codec, 0x64, cv); |
| 1173 | return 0; |
| 1174 | } |
| 1175 | |
| 1176 | |
| 1177 | /* copied from drivers/sound/maestro.c */ |
| 1178 | #if 0 /* there has been 1 person on the planet with a pt101 that we |
| 1179 | know of. If they care, they can put this back in :) */ |
| 1180 | static int pt101_init(struct ac97_codec * codec) |
| 1181 | { |
| 1182 | printk(KERN_INFO "ac97_codec: PT101 Codec detected, initializing but _not_ installing mixer device.\n"); |
| 1183 | /* who knows.. */ |
| 1184 | codec->codec_write(codec, 0x2A, 0x0001); |
| 1185 | codec->codec_write(codec, 0x2C, 0x0000); |
| 1186 | codec->codec_write(codec, 0x2C, 0xFFFF); |
| 1187 | codec->codec_write(codec, 0x10, 0x9F1F); |
| 1188 | codec->codec_write(codec, 0x12, 0x0808); |
| 1189 | codec->codec_write(codec, 0x14, 0x9F1F); |
| 1190 | codec->codec_write(codec, 0x16, 0x9F1F); |
| 1191 | codec->codec_write(codec, 0x18, 0x0404); |
| 1192 | codec->codec_write(codec, 0x1A, 0x0000); |
| 1193 | codec->codec_write(codec, 0x1C, 0x0000); |
| 1194 | codec->codec_write(codec, 0x02, 0x0404); |
| 1195 | codec->codec_write(codec, 0x04, 0x0808); |
| 1196 | codec->codec_write(codec, 0x0C, 0x801F); |
| 1197 | codec->codec_write(codec, 0x0E, 0x801F); |
| 1198 | return 0; |
| 1199 | } |
| 1200 | #endif |
| 1201 | |
| 1202 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1203 | EXPORT_SYMBOL(ac97_probe_codec); |
| 1204 | |
Adrian Bunk | d6e4218 | 2008-03-30 19:53:23 +0300 | [diff] [blame] | 1205 | MODULE_LICENSE("GPL"); |
| 1206 | |