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[cor_2_6_31.git] / sound / pci / ac97 / ac97_codec.c
blob78288dbfc17a039cc4b9b417bf6ae56bbf2f1419
1 /*
2 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3 * Universal interface for Audio Codec '97
4 *
5 * For more details look to AC '97 component specification revision 2.2
6 * by Intel Corporation (http://developer.intel.com).
7 *
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 */
24
25 #include <linux/delay.h>
26 #include <linux/init.h>
27 #include <linux/slab.h>
28 #include <linux/pci.h>
29 #include <linux/moduleparam.h>
30 #include <linux/mutex.h>
31 #include <sound/core.h>
32 #include <sound/pcm.h>
33 #include <sound/tlv.h>
34 #include <sound/ac97_codec.h>
35 #include <sound/asoundef.h>
36 #include <sound/initval.h>
37 #include "ac97_id.h"
38
39 #include "ac97_patch.c"
40
41 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
42 MODULE_DESCRIPTION("Universal interface for Audio Codec '97");
43 MODULE_LICENSE("GPL");
44
45 static int enable_loopback;
46
47 module_param(enable_loopback, bool, 0444);
48 MODULE_PARM_DESC(enable_loopback, "Enable AC97 ADC/DAC Loopback Control");
49
50 #ifdef CONFIG_SND_AC97_POWER_SAVE
51 static int power_save = CONFIG_SND_AC97_POWER_SAVE_DEFAULT;
52 module_param(power_save, int, 0644);
53 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
54 "(in second, 0 = disable).");
55 #endif
56 /*
57
58 */
59
60 struct ac97_codec_id {
61 unsigned int id;
62 unsigned int mask;
63 const char *name;
64 int (*patch)(struct snd_ac97 *ac97);
65 int (*mpatch)(struct snd_ac97 *ac97);
66 unsigned int flags;
67 };
68
69 static const struct ac97_codec_id snd_ac97_codec_id_vendors[] = {
70 { 0x41445300, 0xffffff00, "Analog Devices", NULL, NULL },
71 { 0x414b4d00, 0xffffff00, "Asahi Kasei", NULL, NULL },
72 { 0x414c4300, 0xffffff00, "Realtek", NULL, NULL },
73 { 0x414c4700, 0xffffff00, "Realtek", NULL, NULL },
74 { 0x434d4900, 0xffffff00, "C-Media Electronics", NULL, NULL },
75 { 0x43525900, 0xffffff00, "Cirrus Logic", NULL, NULL },
76 { 0x43585400, 0xffffff00, "Conexant", NULL, NULL },
77 { 0x44543000, 0xffffff00, "Diamond Technology", NULL, NULL },
78 { 0x454d4300, 0xffffff00, "eMicro", NULL, NULL },
79 { 0x45838300, 0xffffff00, "ESS Technology", NULL, NULL },
80 { 0x48525300, 0xffffff00, "Intersil", NULL, NULL },
81 { 0x49434500, 0xffffff00, "ICEnsemble", NULL, NULL },
82 { 0x49544500, 0xffffff00, "ITE Tech.Inc", NULL, NULL },
83 { 0x4e534300, 0xffffff00, "National Semiconductor", NULL, NULL },
84 { 0x50534300, 0xffffff00, "Philips", NULL, NULL },
85 { 0x53494c00, 0xffffff00, "Silicon Laboratory", NULL, NULL },
86 { 0x54524100, 0xffffff00, "TriTech", NULL, NULL },
87 { 0x54584e00, 0xffffff00, "Texas Instruments", NULL, NULL },
88 { 0x56494100, 0xffffff00, "VIA Technologies", NULL, NULL },
89 { 0x57454300, 0xffffff00, "Winbond", NULL, NULL },
90 { 0x574d4c00, 0xffffff00, "Wolfson", NULL, NULL },
91 { 0x594d4800, 0xffffff00, "Yamaha", NULL, NULL },
92 { 0x83847600, 0xffffff00, "SigmaTel", NULL, NULL },
93 { 0, 0, NULL, NULL, NULL }
94 };
95
96 static const struct ac97_codec_id snd_ac97_codec_ids[] = {
97 { 0x41445303, 0xffffffff, "AD1819", patch_ad1819, NULL },
98 { 0x41445340, 0xffffffff, "AD1881", patch_ad1881, NULL },
99 { 0x41445348, 0xffffffff, "AD1881A", patch_ad1881, NULL },
100 { 0x41445360, 0xffffffff, "AD1885", patch_ad1885, NULL },
101 { 0x41445361, 0xffffffff, "AD1886", patch_ad1886, NULL },
102 { 0x41445362, 0xffffffff, "AD1887", patch_ad1881, NULL },
103 { 0x41445363, 0xffffffff, "AD1886A", patch_ad1881, NULL },
104 { 0x41445368, 0xffffffff, "AD1888", patch_ad1888, NULL },
105 { 0x41445370, 0xffffffff, "AD1980", patch_ad1980, NULL },
106 { 0x41445372, 0xffffffff, "AD1981A", patch_ad1981a, NULL },
107 { 0x41445374, 0xffffffff, "AD1981B", patch_ad1981b, NULL },
108 { 0x41445375, 0xffffffff, "AD1985", patch_ad1985, NULL },
109 { 0x41445378, 0xffffffff, "AD1986", patch_ad1986, NULL },
110 { 0x414b4d00, 0xffffffff, "AK4540", NULL, NULL },
111 { 0x414b4d01, 0xffffffff, "AK4542", NULL, NULL },
112 { 0x414b4d02, 0xffffffff, "AK4543", NULL, NULL },
113 { 0x414b4d06, 0xffffffff, "AK4544A", NULL, NULL },
114 { 0x414b4d07, 0xffffffff, "AK4545", NULL, NULL },
115 { 0x414c4300, 0xffffff00, "ALC100,100P", NULL, NULL },
116 { 0x414c4710, 0xfffffff0, "ALC200,200P", NULL, NULL },
117 { 0x414c4721, 0xffffffff, "ALC650D", NULL, NULL }, /* already patched */
118 { 0x414c4722, 0xffffffff, "ALC650E", NULL, NULL }, /* already patched */
119 { 0x414c4723, 0xffffffff, "ALC650F", NULL, NULL }, /* already patched */
120 { 0x414c4720, 0xfffffff0, "ALC650", patch_alc650, NULL },
121 { 0x414c4730, 0xffffffff, "ALC101", NULL, NULL },
122 { 0x414c4740, 0xfffffff0, "ALC202", NULL, NULL },
123 { 0x414c4750, 0xfffffff0, "ALC250", NULL, NULL },
124 { 0x414c4760, 0xfffffff0, "ALC655", patch_alc655, NULL },
125 { 0x414c4770, 0xfffffff0, "ALC203", patch_alc203, NULL },
126 { 0x414c4781, 0xffffffff, "ALC658D", NULL, NULL }, /* already patched */
127 { 0x414c4780, 0xfffffff0, "ALC658", patch_alc655, NULL },
128 { 0x414c4790, 0xfffffff0, "ALC850", patch_alc850, NULL },
129 { 0x434d4941, 0xffffffff, "CMI9738", patch_cm9738, NULL },
130 { 0x434d4961, 0xffffffff, "CMI9739", patch_cm9739, NULL },
131 { 0x434d4969, 0xffffffff, "CMI9780", patch_cm9780, NULL },
132 { 0x434d4978, 0xffffffff, "CMI9761A", patch_cm9761, NULL },
133 { 0x434d4982, 0xffffffff, "CMI9761B", patch_cm9761, NULL },
134 { 0x434d4983, 0xffffffff, "CMI9761A+", patch_cm9761, NULL },
135 { 0x43525900, 0xfffffff8, "CS4297", NULL, NULL },
136 { 0x43525910, 0xfffffff8, "CS4297A", patch_cirrus_spdif, NULL },
137 { 0x43525920, 0xfffffff8, "CS4298", patch_cirrus_spdif, NULL },
138 { 0x43525928, 0xfffffff8, "CS4294", NULL, NULL },
139 { 0x43525930, 0xfffffff8, "CS4299", patch_cirrus_cs4299, NULL },
140 { 0x43525948, 0xfffffff8, "CS4201", NULL, NULL },
141 { 0x43525958, 0xfffffff8, "CS4205", patch_cirrus_spdif, NULL },
142 { 0x43525960, 0xfffffff8, "CS4291", NULL, NULL },
143 { 0x43525970, 0xfffffff8, "CS4202", NULL, NULL },
144 { 0x43585421, 0xffffffff, "HSD11246", NULL, NULL }, // SmartMC II
145 { 0x43585428, 0xfffffff8, "Cx20468", patch_conexant, NULL }, // SmartAMC fixme: the mask might be different
146 { 0x43585430, 0xffffffff, "Cx20468-31", patch_conexant, NULL },
147 { 0x43585431, 0xffffffff, "Cx20551", patch_cx20551, NULL },
148 { 0x44543031, 0xfffffff0, "DT0398", NULL, NULL },
149 { 0x454d4328, 0xffffffff, "EM28028", NULL, NULL }, // same as TR28028?
150 { 0x45838308, 0xffffffff, "ESS1988", NULL, NULL },
151 { 0x48525300, 0xffffff00, "HMP9701", NULL, NULL },
152 { 0x49434501, 0xffffffff, "ICE1230", NULL, NULL },
153 { 0x49434511, 0xffffffff, "ICE1232", NULL, NULL }, // alias VIA VT1611A?
154 { 0x49434514, 0xffffffff, "ICE1232A", NULL, NULL },
155 { 0x49434551, 0xffffffff, "VT1616", patch_vt1616, NULL },
156 { 0x49434552, 0xffffffff, "VT1616i", patch_vt1616, NULL }, // VT1616 compatible (chipset integrated)
157 { 0x49544520, 0xffffffff, "IT2226E", NULL, NULL },
158 { 0x49544561, 0xffffffff, "IT2646E", patch_it2646, NULL },
159 { 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL, NULL }, // only guess --jk
160 { 0x4e534331, 0xffffffff, "LM4549", NULL, NULL },
161 { 0x4e534350, 0xffffffff, "LM4550", patch_lm4550, NULL }, // volume wrap fix
162 { 0x50534304, 0xffffffff, "UCB1400", patch_ucb1400, NULL },
163 { 0x53494c20, 0xffffffe0, "Si3036,8", mpatch_si3036, mpatch_si3036, AC97_MODEM_PATCH },
164 { 0x54524102, 0xffffffff, "TR28022", NULL, NULL },
165 { 0x54524103, 0xffffffff, "TR28023", NULL, NULL },
166 { 0x54524106, 0xffffffff, "TR28026", NULL, NULL },
167 { 0x54524108, 0xffffffff, "TR28028", patch_tritech_tr28028, NULL }, // added by xin jin [07/09/99]
168 { 0x54524123, 0xffffffff, "TR28602", NULL, NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
169 { 0x54584e20, 0xffffffff, "TLC320AD9xC", NULL, NULL },
170 { 0x56494161, 0xffffffff, "VIA1612A", NULL, NULL }, // modified ICE1232 with S/PDIF
171 { 0x56494170, 0xffffffff, "VIA1617A", patch_vt1617a, NULL }, // modified VT1616 with S/PDIF
172 { 0x56494182, 0xffffffff, "VIA1618", patch_vt1618, NULL },
173 { 0x57454301, 0xffffffff, "W83971D", NULL, NULL },
174 { 0x574d4c00, 0xffffffff, "WM9701,WM9701A", NULL, NULL },
175 { 0x574d4C03, 0xffffffff, "WM9703,WM9707,WM9708,WM9717", patch_wolfson03, NULL},
176 { 0x574d4C04, 0xffffffff, "WM9704M,WM9704Q", patch_wolfson04, NULL},
177 { 0x574d4C05, 0xffffffff, "WM9705,WM9710", patch_wolfson05, NULL},
178 { 0x574d4C09, 0xffffffff, "WM9709", NULL, NULL},
179 { 0x574d4C12, 0xffffffff, "WM9711,WM9712,WM9715", patch_wolfson11, NULL},
180 { 0x574d4c13, 0xffffffff, "WM9713,WM9714", patch_wolfson13, NULL, AC97_DEFAULT_POWER_OFF},
181 { 0x594d4800, 0xffffffff, "YMF743", patch_yamaha_ymf743, NULL },
182 { 0x594d4802, 0xffffffff, "YMF752", NULL, NULL },
183 { 0x594d4803, 0xffffffff, "YMF753", patch_yamaha_ymf753, NULL },
184 { 0x83847600, 0xffffffff, "STAC9700,83,84", patch_sigmatel_stac9700, NULL },
185 { 0x83847604, 0xffffffff, "STAC9701,3,4,5", NULL, NULL },
186 { 0x83847605, 0xffffffff, "STAC9704", NULL, NULL },
187 { 0x83847608, 0xffffffff, "STAC9708,11", patch_sigmatel_stac9708, NULL },
188 { 0x83847609, 0xffffffff, "STAC9721,23", patch_sigmatel_stac9721, NULL },
189 { 0x83847644, 0xffffffff, "STAC9744", patch_sigmatel_stac9744, NULL },
190 { 0x83847650, 0xffffffff, "STAC9750,51", NULL, NULL }, // patch?
191 { 0x83847652, 0xffffffff, "STAC9752,53", NULL, NULL }, // patch?
192 { 0x83847656, 0xffffffff, "STAC9756,57", patch_sigmatel_stac9756, NULL },
193 { 0x83847658, 0xffffffff, "STAC9758,59", patch_sigmatel_stac9758, NULL },
194 { 0x83847666, 0xffffffff, "STAC9766,67", NULL, NULL }, // patch?
195 { 0, 0, NULL, NULL, NULL }
196 };
197
198
199 static void update_power_regs(struct snd_ac97 *ac97);
200 #ifdef CONFIG_SND_AC97_POWER_SAVE
201 #define ac97_is_power_save_mode(ac97) \
202 ((ac97->scaps & AC97_SCAP_POWER_SAVE) && power_save)
203 #else
204 #define ac97_is_power_save_mode(ac97) 0
205 #endif
206
207
208 /*
209 * I/O routines
210 */
211
212 static int snd_ac97_valid_reg(struct snd_ac97 *ac97, unsigned short reg)
213 {
214 /* filter some registers for buggy codecs */
215 switch (ac97->id) {
216 case AC97_ID_AK4540:
217 case AC97_ID_AK4542:
218 if (reg <= 0x1c || reg == 0x20 || reg == 0x26 || reg >= 0x7c)
219 return 1;
220 return 0;
221 case AC97_ID_AD1819: /* AD1819 */
222 case AC97_ID_AD1881: /* AD1881 */
223 case AC97_ID_AD1881A: /* AD1881A */
224 if (reg >= 0x3a && reg <= 0x6e) /* 0x59 */
225 return 0;
226 return 1;
227 case AC97_ID_AD1885: /* AD1885 */
228 case AC97_ID_AD1886: /* AD1886 */
229 case AC97_ID_AD1886A: /* AD1886A - !!verify!! --jk */
230 case AC97_ID_AD1887: /* AD1887 - !!verify!! --jk */
231 if (reg == 0x5a)
232 return 1;
233 if (reg >= 0x3c && reg <= 0x6e) /* 0x59 */
234 return 0;
235 return 1;
236 case AC97_ID_STAC9700:
237 case AC97_ID_STAC9704:
238 case AC97_ID_STAC9705:
239 case AC97_ID_STAC9708:
240 case AC97_ID_STAC9721:
241 case AC97_ID_STAC9744:
242 case AC97_ID_STAC9756:
243 if (reg <= 0x3a || reg >= 0x5a)
244 return 1;
245 return 0;
246 }
247 return 1;
248 }
249
250 /**
251 * snd_ac97_write - write a value on the given register
252 * @ac97: the ac97 instance
253 * @reg: the register to change
254 * @value: the value to set
255 *
256 * Writes a value on the given register. This will invoke the write
257 * callback directly after the register check.
258 * This function doesn't change the register cache unlike
259 * #snd_ca97_write_cache(), so use this only when you don't want to
260 * reflect the change to the suspend/resume state.
261 */
262 void snd_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
263 {
264 if (!snd_ac97_valid_reg(ac97, reg))
265 return;
266 if ((ac97->id & 0xffffff00) == AC97_ID_ALC100) {
267 /* Fix H/W bug of ALC100/100P */
268 if (reg == AC97_MASTER || reg == AC97_HEADPHONE)
269 ac97->bus->ops->write(ac97, AC97_RESET, 0); /* reset audio codec */
270 }
271 ac97->bus->ops->write(ac97, reg, value);
272 }
273
274 EXPORT_SYMBOL(snd_ac97_write);
275
276 /**
277 * snd_ac97_read - read a value from the given register
278 *
279 * @ac97: the ac97 instance
280 * @reg: the register to read
281 *
282 * Reads a value from the given register. This will invoke the read
283 * callback directly after the register check.
284 *
285 * Returns the read value.
286 */
287 unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
288 {
289 if (!snd_ac97_valid_reg(ac97, reg))
290 return 0;
291 return ac97->bus->ops->read(ac97, reg);
292 }
293
294 /* read a register - return the cached value if already read */
295 static inline unsigned short snd_ac97_read_cache(struct snd_ac97 *ac97, unsigned short reg)
296 {
297 if (! test_bit(reg, ac97->reg_accessed)) {
298 ac97->regs[reg] = ac97->bus->ops->read(ac97, reg);
299 // set_bit(reg, ac97->reg_accessed);
300 }
301 return ac97->regs[reg];
302 }
303
304 EXPORT_SYMBOL(snd_ac97_read);
305
306 /**
307 * snd_ac97_write_cache - write a value on the given register and update the cache
308 * @ac97: the ac97 instance
309 * @reg: the register to change
310 * @value: the value to set
311 *
312 * Writes a value on the given register and updates the register
313 * cache. The cached values are used for the cached-read and the
314 * suspend/resume.
315 */
316 void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
317 {
318 if (!snd_ac97_valid_reg(ac97, reg))
319 return;
320 mutex_lock(&ac97->reg_mutex);
321 ac97->regs[reg] = value;
322 ac97->bus->ops->write(ac97, reg, value);
323 set_bit(reg, ac97->reg_accessed);
324 mutex_unlock(&ac97->reg_mutex);
325 }
326
327 EXPORT_SYMBOL(snd_ac97_write_cache);
328
329 /**
330 * snd_ac97_update - update the value on the given register
331 * @ac97: the ac97 instance
332 * @reg: the register to change
333 * @value: the value to set
334 *
335 * Compares the value with the register cache and updates the value
336 * only when the value is changed.
337 *
338 * Returns 1 if the value is changed, 0 if no change, or a negative
339 * code on failure.
340 */
341 int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
342 {
343 int change;
344
345 if (!snd_ac97_valid_reg(ac97, reg))
346 return -EINVAL;
347 mutex_lock(&ac97->reg_mutex);
348 change = ac97->regs[reg] != value;
349 if (change) {
350 ac97->regs[reg] = value;
351 ac97->bus->ops->write(ac97, reg, value);
352 }
353 set_bit(reg, ac97->reg_accessed);
354 mutex_unlock(&ac97->reg_mutex);
355 return change;
356 }
357
358 EXPORT_SYMBOL(snd_ac97_update);
359
360 /**
361 * snd_ac97_update_bits - update the bits on the given register
362 * @ac97: the ac97 instance
363 * @reg: the register to change
364 * @mask: the bit-mask to change
365 * @value: the value to set
366 *
367 * Updates the masked-bits on the given register only when the value
368 * is changed.
369 *
370 * Returns 1 if the bits are changed, 0 if no change, or a negative
371 * code on failure.
372 */
373 int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value)
374 {
375 int change;
376
377 if (!snd_ac97_valid_reg(ac97, reg))
378 return -EINVAL;
379 mutex_lock(&ac97->reg_mutex);
380 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
381 mutex_unlock(&ac97->reg_mutex);
382 return change;
383 }
384
385 EXPORT_SYMBOL(snd_ac97_update_bits);
386
387 /* no lock version - see snd_ac97_update_bits() */
388 int snd_ac97_update_bits_nolock(struct snd_ac97 *ac97, unsigned short reg,
389 unsigned short mask, unsigned short value)
390 {
391 int change;
392 unsigned short old, new;
393
394 old = snd_ac97_read_cache(ac97, reg);
395 new = (old & ~mask) | (value & mask);
396 change = old != new;
397 if (change) {
398 ac97->regs[reg] = new;
399 ac97->bus->ops->write(ac97, reg, new);
400 }
401 set_bit(reg, ac97->reg_accessed);
402 return change;
403 }
404
405 static int snd_ac97_ad18xx_update_pcm_bits(struct snd_ac97 *ac97, int codec, unsigned short mask, unsigned short value)
406 {
407 int change;
408 unsigned short old, new, cfg;
409
410 mutex_lock(&ac97->page_mutex);
411 old = ac97->spec.ad18xx.pcmreg[codec];
412 new = (old & ~mask) | (value & mask);
413 change = old != new;
414 if (change) {
415 mutex_lock(&ac97->reg_mutex);
416 cfg = snd_ac97_read_cache(ac97, AC97_AD_SERIAL_CFG);
417 ac97->spec.ad18xx.pcmreg[codec] = new;
418 /* select single codec */
419 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
420 (cfg & ~0x7000) |
421 ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
422 /* update PCM bits */
423 ac97->bus->ops->write(ac97, AC97_PCM, new);
424 /* select all codecs */
425 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
426 cfg | 0x7000);
427 mutex_unlock(&ac97->reg_mutex);
428 }
429 mutex_unlock(&ac97->page_mutex);
430 return change;
431 }
432
433 /*
434 * Controls
435 */
436
437 static int snd_ac97_info_enum_double(struct snd_kcontrol *kcontrol,
438 struct snd_ctl_elem_info *uinfo)
439 {
440 struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
441
442 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
443 uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
444 uinfo->value.enumerated.items = e->mask;
445
446 if (uinfo->value.enumerated.item > e->mask - 1)
447 uinfo->value.enumerated.item = e->mask - 1;
448 strcpy(uinfo->value.enumerated.name, e->texts[uinfo->value.enumerated.item]);
449 return 0;
450 }
451
452 static int snd_ac97_get_enum_double(struct snd_kcontrol *kcontrol,
453 struct snd_ctl_elem_value *ucontrol)
454 {
455 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
456 struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
457 unsigned short val, bitmask;
458
459 for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
460 ;
461 val = snd_ac97_read_cache(ac97, e->reg);
462 ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
463 if (e->shift_l != e->shift_r)
464 ucontrol->value.enumerated.item[1] = (val >> e->shift_r) & (bitmask - 1);
465
466 return 0;
467 }
468
469 static int snd_ac97_put_enum_double(struct snd_kcontrol *kcontrol,
470 struct snd_ctl_elem_value *ucontrol)
471 {
472 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
473 struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
474 unsigned short val;
475 unsigned short mask, bitmask;
476
477 for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
478 ;
479 if (ucontrol->value.enumerated.item[0] > e->mask - 1)
480 return -EINVAL;
481 val = ucontrol->value.enumerated.item[0] << e->shift_l;
482 mask = (bitmask - 1) << e->shift_l;
483 if (e->shift_l != e->shift_r) {
484 if (ucontrol->value.enumerated.item[1] > e->mask - 1)
485 return -EINVAL;
486 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
487 mask |= (bitmask - 1) << e->shift_r;
488 }
489 return snd_ac97_update_bits(ac97, e->reg, mask, val);
490 }
491
492 /* save/restore ac97 v2.3 paging */
493 static int snd_ac97_page_save(struct snd_ac97 *ac97, int reg, struct snd_kcontrol *kcontrol)
494 {
495 int page_save = -1;
496 if ((kcontrol->private_value & (1<<25)) &&
497 (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23 &&
498 (reg >= 0x60 && reg < 0x70)) {
499 unsigned short page = (kcontrol->private_value >> 26) & 0x0f;
500 mutex_lock(&ac97->page_mutex); /* lock paging */
501 page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
502 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
503 }
504 return page_save;
505 }
506
507 static void snd_ac97_page_restore(struct snd_ac97 *ac97, int page_save)
508 {
509 if (page_save >= 0) {
510 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
511 mutex_unlock(&ac97->page_mutex); /* unlock paging */
512 }
513 }
514
515 /* volume and switch controls */
516 static int snd_ac97_info_volsw(struct snd_kcontrol *kcontrol,
517 struct snd_ctl_elem_info *uinfo)
518 {
519 int mask = (kcontrol->private_value >> 16) & 0xff;
520 int shift = (kcontrol->private_value >> 8) & 0x0f;
521 int rshift = (kcontrol->private_value >> 12) & 0x0f;
522
523 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
524 uinfo->count = shift == rshift ? 1 : 2;
525 uinfo->value.integer.min = 0;
526 uinfo->value.integer.max = mask;
527 return 0;
528 }
529
530 static int snd_ac97_get_volsw(struct snd_kcontrol *kcontrol,
531 struct snd_ctl_elem_value *ucontrol)
532 {
533 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
534 int reg = kcontrol->private_value & 0xff;
535 int shift = (kcontrol->private_value >> 8) & 0x0f;
536 int rshift = (kcontrol->private_value >> 12) & 0x0f;
537 int mask = (kcontrol->private_value >> 16) & 0xff;
538 int invert = (kcontrol->private_value >> 24) & 0x01;
539 int page_save;
540
541 page_save = snd_ac97_page_save(ac97, reg, kcontrol);
542 ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift) & mask;
543 if (shift != rshift)
544 ucontrol->value.integer.value[1] = (snd_ac97_read_cache(ac97, reg) >> rshift) & mask;
545 if (invert) {
546 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
547 if (shift != rshift)
548 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
549 }
550 snd_ac97_page_restore(ac97, page_save);
551 return 0;
552 }
553
554 static int snd_ac97_put_volsw(struct snd_kcontrol *kcontrol,
555 struct snd_ctl_elem_value *ucontrol)
556 {
557 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
558 int reg = kcontrol->private_value & 0xff;
559 int shift = (kcontrol->private_value >> 8) & 0x0f;
560 int rshift = (kcontrol->private_value >> 12) & 0x0f;
561 int mask = (kcontrol->private_value >> 16) & 0xff;
562 int invert = (kcontrol->private_value >> 24) & 0x01;
563 int err, page_save;
564 unsigned short val, val2, val_mask;
565
566 page_save = snd_ac97_page_save(ac97, reg, kcontrol);
567 val = (ucontrol->value.integer.value[0] & mask);
568 if (invert)
569 val = mask - val;
570 val_mask = mask << shift;
571 val = val << shift;
572 if (shift != rshift) {
573 val2 = (ucontrol->value.integer.value[1] & mask);
574 if (invert)
575 val2 = mask - val2;
576 val_mask |= mask << rshift;
577 val |= val2 << rshift;
578 }
579 err = snd_ac97_update_bits(ac97, reg, val_mask, val);
580 snd_ac97_page_restore(ac97, page_save);
581 #ifdef CONFIG_SND_AC97_POWER_SAVE
582 /* check analog mixer power-down */
583 if ((val_mask & 0x8000) &&
584 (kcontrol->private_value & (1<<30))) {
585 if (val & 0x8000)
586 ac97->power_up &= ~(1 << (reg>>1));
587 else
588 ac97->power_up |= 1 << (reg>>1);
589 update_power_regs(ac97);
590 }
591 #endif
592 return err;
593 }
594
595 static const struct snd_kcontrol_new snd_ac97_controls_master_mono[2] = {
596 AC97_SINGLE("Master Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
597 AC97_SINGLE("Master Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1)
598 };
599
600 static const struct snd_kcontrol_new snd_ac97_controls_tone[2] = {
601 AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1),
602 AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1)
603 };
604
605 static const struct snd_kcontrol_new snd_ac97_controls_pc_beep[2] = {
606 AC97_SINGLE("PC Speaker Playback Switch", AC97_PC_BEEP, 15, 1, 1),
607 AC97_SINGLE("PC Speaker Playback Volume", AC97_PC_BEEP, 1, 15, 1)
608 };
609
610 static const struct snd_kcontrol_new snd_ac97_controls_mic_boost =
611 AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0);
612
613
614 static const char* std_rec_sel[] = {"Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone"};
615 static const char* std_3d_path[] = {"pre 3D", "post 3D"};
616 static const char* std_mix[] = {"Mix", "Mic"};
617 static const char* std_mic[] = {"Mic1", "Mic2"};
618
619 static const struct ac97_enum std_enum[] = {
620 AC97_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, std_rec_sel),
621 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, std_3d_path),
622 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, std_mix),
623 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, std_mic),
624 };
625
626 static const struct snd_kcontrol_new snd_ac97_control_capture_src =
627 AC97_ENUM("Capture Source", std_enum[0]);
628
629 static const struct snd_kcontrol_new snd_ac97_control_capture_vol =
630 AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0);
631
632 static const struct snd_kcontrol_new snd_ac97_controls_mic_capture[2] = {
633 AC97_SINGLE("Mic Capture Switch", AC97_REC_GAIN_MIC, 15, 1, 1),
634 AC97_SINGLE("Mic Capture Volume", AC97_REC_GAIN_MIC, 0, 15, 0)
635 };
636
637 enum {
638 AC97_GENERAL_PCM_OUT = 0,
639 AC97_GENERAL_STEREO_ENHANCEMENT,
640 AC97_GENERAL_3D,
641 AC97_GENERAL_LOUDNESS,
642 AC97_GENERAL_MONO,
643 AC97_GENERAL_MIC,
644 AC97_GENERAL_LOOPBACK
645 };
646
647 static const struct snd_kcontrol_new snd_ac97_controls_general[7] = {
648 AC97_ENUM("PCM Out Path & Mute", std_enum[1]),
649 AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0),
650 AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
651 AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0),
652 AC97_ENUM("Mono Output Select", std_enum[2]),
653 AC97_ENUM("Mic Select", std_enum[3]),
654 AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0)
655 };
656
657 static const struct snd_kcontrol_new snd_ac97_controls_3d[2] = {
658 AC97_SINGLE("3D Control - Center", AC97_3D_CONTROL, 8, 15, 0),
659 AC97_SINGLE("3D Control - Depth", AC97_3D_CONTROL, 0, 15, 0)
660 };
661
662 static const struct snd_kcontrol_new snd_ac97_controls_center[2] = {
663 AC97_SINGLE("Center Playback Switch", AC97_CENTER_LFE_MASTER, 7, 1, 1),
664 AC97_SINGLE("Center Playback Volume", AC97_CENTER_LFE_MASTER, 0, 31, 1)
665 };
666
667 static const struct snd_kcontrol_new snd_ac97_controls_lfe[2] = {
668 AC97_SINGLE("LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 1, 1),
669 AC97_SINGLE("LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 31, 1)
670 };
671
672 static const struct snd_kcontrol_new snd_ac97_control_eapd =
673 AC97_SINGLE("External Amplifier", AC97_POWERDOWN, 15, 1, 1);
674
675 static const struct snd_kcontrol_new snd_ac97_controls_modem_switches[2] = {
676 AC97_SINGLE("Off-hook Switch", AC97_GPIO_STATUS, 0, 1, 0),
677 AC97_SINGLE("Caller ID Switch", AC97_GPIO_STATUS, 2, 1, 0)
678 };
679
680 /* change the existing EAPD control as inverted */
681 static void set_inv_eapd(struct snd_ac97 *ac97, struct snd_kcontrol *kctl)
682 {
683 kctl->private_value = AC97_SINGLE_VALUE(AC97_POWERDOWN, 15, 1, 0);
684 snd_ac97_update_bits(ac97, AC97_POWERDOWN, (1<<15), (1<<15)); /* EAPD up */
685 ac97->scaps |= AC97_SCAP_INV_EAPD;
686 }
687
688 static int snd_ac97_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
689 {
690 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
691 uinfo->count = 1;
692 return 0;
693 }
694
695 static int snd_ac97_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
696 {
697 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
698 IEC958_AES0_NONAUDIO |
699 IEC958_AES0_CON_EMPHASIS_5015 |
700 IEC958_AES0_CON_NOT_COPYRIGHT;
701 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
702 IEC958_AES1_CON_ORIGINAL;
703 ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
704 return 0;
705 }
706
707 static int snd_ac97_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
708 {
709 /* FIXME: AC'97 spec doesn't say which bits are used for what */
710 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
711 IEC958_AES0_NONAUDIO |
712 IEC958_AES0_PRO_FS |
713 IEC958_AES0_PRO_EMPHASIS_5015;
714 return 0;
715 }
716
717 static int snd_ac97_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
718 {
719 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
720
721 mutex_lock(&ac97->reg_mutex);
722 ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff;
723 ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff;
724 ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff;
725 ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff;
726 mutex_unlock(&ac97->reg_mutex);
727 return 0;
728 }
729
730 static int snd_ac97_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
731 {
732 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
733 unsigned int new = 0;
734 unsigned short val = 0;
735 int change;
736
737 new = val = ucontrol->value.iec958.status[0] & (IEC958_AES0_PROFESSIONAL|IEC958_AES0_NONAUDIO);
738 if (ucontrol->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL) {
739 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_PRO_FS|IEC958_AES0_PRO_EMPHASIS_5015);
740 switch (new & IEC958_AES0_PRO_FS) {
741 case IEC958_AES0_PRO_FS_44100: val |= 0<<12; break;
742 case IEC958_AES0_PRO_FS_48000: val |= 2<<12; break;
743 case IEC958_AES0_PRO_FS_32000: val |= 3<<12; break;
744 default: val |= 1<<12; break;
745 }
746 if ((new & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
747 val |= 1<<3;
748 } else {
749 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT);
750 new |= ((ucontrol->value.iec958.status[1] & (IEC958_AES1_CON_CATEGORY|IEC958_AES1_CON_ORIGINAL)) << 8);
751 new |= ((ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) << 24);
752 if ((new & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
753 val |= 1<<3;
754 if (!(new & IEC958_AES0_CON_NOT_COPYRIGHT))
755 val |= 1<<2;
756 val |= ((new >> 8) & 0xff) << 4; // category + original
757 switch ((new >> 24) & 0xff) {
758 case IEC958_AES3_CON_FS_44100: val |= 0<<12; break;
759 case IEC958_AES3_CON_FS_48000: val |= 2<<12; break;
760 case IEC958_AES3_CON_FS_32000: val |= 3<<12; break;
761 default: val |= 1<<12; break;
762 }
763 }
764
765 mutex_lock(&ac97->reg_mutex);
766 change = ac97->spdif_status != new;
767 ac97->spdif_status = new;
768
769 if (ac97->flags & AC97_CS_SPDIF) {
770 int x = (val >> 12) & 0x03;
771 switch (x) {
772 case 0: x = 1; break; // 44.1
773 case 2: x = 0; break; // 48.0
774 default: x = 0; break; // illegal.
775 }
776 change |= snd_ac97_update_bits_nolock(ac97, AC97_CSR_SPDIF, 0x3fff, ((val & 0xcfff) | (x << 12)));
777 } else if (ac97->flags & AC97_CX_SPDIF) {
778 int v;
779 v = new & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT) ? 0 : AC97_CXR_COPYRGT;
780 v |= new & IEC958_AES0_NONAUDIO ? AC97_CXR_SPDIF_AC3 : AC97_CXR_SPDIF_PCM;
781 change |= snd_ac97_update_bits_nolock(ac97, AC97_CXR_AUDIO_MISC,
782 AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT,
783 v);
784 } else if (ac97->id == AC97_ID_YMF743) {
785 change |= snd_ac97_update_bits_nolock(ac97,
786 AC97_YMF7X3_DIT_CTRL,
787 0xff38,
788 ((val << 4) & 0xff00) |
789 ((val << 2) & 0x0038));
790 } else {
791 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
792 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
793
794 change |= snd_ac97_update_bits_nolock(ac97, AC97_SPDIF, 0x3fff, val);
795 if (extst & AC97_EA_SPDIF) {
796 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
797 }
798 }
799 mutex_unlock(&ac97->reg_mutex);
800
801 return change;
802 }
803
804 static int snd_ac97_put_spsa(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
805 {
806 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
807 int reg = kcontrol->private_value & 0xff;
808 int shift = (kcontrol->private_value >> 8) & 0xff;
809 int mask = (kcontrol->private_value >> 16) & 0xff;
810 // int invert = (kcontrol->private_value >> 24) & 0xff;
811 unsigned short value, old, new;
812 int change;
813
814 value = (ucontrol->value.integer.value[0] & mask);
815
816 mutex_lock(&ac97->reg_mutex);
817 mask <<= shift;
818 value <<= shift;
819 old = snd_ac97_read_cache(ac97, reg);
820 new = (old & ~mask) | value;
821 change = old != new;
822
823 if (change) {
824 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
825 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
826 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
827 if (extst & AC97_EA_SPDIF)
828 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
829 }
830 mutex_unlock(&ac97->reg_mutex);
831 return change;
832 }
833
834 static const struct snd_kcontrol_new snd_ac97_controls_spdif[5] = {
835 {
836 .access = SNDRV_CTL_ELEM_ACCESS_READ,
837 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
838 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
839 .info = snd_ac97_spdif_mask_info,
840 .get = snd_ac97_spdif_cmask_get,
841 },
842 {
843 .access = SNDRV_CTL_ELEM_ACCESS_READ,
844 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
845 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
846 .info = snd_ac97_spdif_mask_info,
847 .get = snd_ac97_spdif_pmask_get,
848 },
849 {
850 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
851 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
852 .info = snd_ac97_spdif_mask_info,
853 .get = snd_ac97_spdif_default_get,
854 .put = snd_ac97_spdif_default_put,
855 },
856
857 AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),AC97_EXTENDED_STATUS, 2, 1, 0),
858 {
859 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
860 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA",
861 .info = snd_ac97_info_volsw,
862 .get = snd_ac97_get_volsw,
863 .put = snd_ac97_put_spsa,
864 .private_value = AC97_SINGLE_VALUE(AC97_EXTENDED_STATUS, 4, 3, 0)
865 },
866 };
867
868 #define AD18XX_PCM_BITS(xname, codec, lshift, rshift, mask) \
869 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_bits, \
870 .get = snd_ac97_ad18xx_pcm_get_bits, .put = snd_ac97_ad18xx_pcm_put_bits, \
871 .private_value = (codec) | ((lshift) << 8) | ((rshift) << 12) | ((mask) << 16) }
872
873 static int snd_ac97_ad18xx_pcm_info_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
874 {
875 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
876 int mask = (kcontrol->private_value >> 16) & 0x0f;
877 int lshift = (kcontrol->private_value >> 8) & 0x0f;
878 int rshift = (kcontrol->private_value >> 12) & 0x0f;
879
880 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
881 if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
882 uinfo->count = 2;
883 else
884 uinfo->count = 1;
885 uinfo->value.integer.min = 0;
886 uinfo->value.integer.max = mask;
887 return 0;
888 }
889
890 static int snd_ac97_ad18xx_pcm_get_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
891 {
892 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
893 int codec = kcontrol->private_value & 3;
894 int lshift = (kcontrol->private_value >> 8) & 0x0f;
895 int rshift = (kcontrol->private_value >> 12) & 0x0f;
896 int mask = (kcontrol->private_value >> 16) & 0xff;
897
898 ucontrol->value.integer.value[0] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> lshift) & mask);
899 if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
900 ucontrol->value.integer.value[1] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> rshift) & mask);
901 return 0;
902 }
903
904 static int snd_ac97_ad18xx_pcm_put_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
905 {
906 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
907 int codec = kcontrol->private_value & 3;
908 int lshift = (kcontrol->private_value >> 8) & 0x0f;
909 int rshift = (kcontrol->private_value >> 12) & 0x0f;
910 int mask = (kcontrol->private_value >> 16) & 0xff;
911 unsigned short val, valmask;
912
913 val = (mask - (ucontrol->value.integer.value[0] & mask)) << lshift;
914 valmask = mask << lshift;
915 if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) {
916 val |= (mask - (ucontrol->value.integer.value[1] & mask)) << rshift;
917 valmask |= mask << rshift;
918 }
919 return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, valmask, val);
920 }
921
922 #define AD18XX_PCM_VOLUME(xname, codec) \
923 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_volume, \
924 .get = snd_ac97_ad18xx_pcm_get_volume, .put = snd_ac97_ad18xx_pcm_put_volume, \
925 .private_value = codec }
926
927 static int snd_ac97_ad18xx_pcm_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
928 {
929 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
930 uinfo->count = 2;
931 uinfo->value.integer.min = 0;
932 uinfo->value.integer.max = 31;
933 return 0;
934 }
935
936 static int snd_ac97_ad18xx_pcm_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
937 {
938 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
939 int codec = kcontrol->private_value & 3;
940
941 mutex_lock(&ac97->page_mutex);
942 ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
943 ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
944 mutex_unlock(&ac97->page_mutex);
945 return 0;
946 }
947
948 static int snd_ac97_ad18xx_pcm_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
949 {
950 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
951 int codec = kcontrol->private_value & 3;
952 unsigned short val1, val2;
953
954 val1 = 31 - (ucontrol->value.integer.value[0] & 31);
955 val2 = 31 - (ucontrol->value.integer.value[1] & 31);
956 return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, 0x1f1f, (val1 << 8) | val2);
957 }
958
959 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_pcm[2] = {
960 AD18XX_PCM_BITS("PCM Playback Switch", 0, 15, 7, 1),
961 AD18XX_PCM_VOLUME("PCM Playback Volume", 0)
962 };
963
964 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_surround[2] = {
965 AD18XX_PCM_BITS("Surround Playback Switch", 1, 15, 7, 1),
966 AD18XX_PCM_VOLUME("Surround Playback Volume", 1)
967 };
968
969 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_center[2] = {
970 AD18XX_PCM_BITS("Center Playback Switch", 2, 15, 15, 1),
971 AD18XX_PCM_BITS("Center Playback Volume", 2, 8, 8, 31)
972 };
973
974 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_lfe[2] = {
975 AD18XX_PCM_BITS("LFE Playback Switch", 2, 7, 7, 1),
976 AD18XX_PCM_BITS("LFE Playback Volume", 2, 0, 0, 31)
977 };
978
979 /*
980 *
981 */
982
983 static void snd_ac97_powerdown(struct snd_ac97 *ac97);
984
985 static int snd_ac97_bus_free(struct snd_ac97_bus *bus)
986 {
987 if (bus) {
988 snd_ac97_bus_proc_done(bus);
989 kfree(bus->pcms);
990 if (bus->private_free)
991 bus->private_free(bus);
992 kfree(bus);
993 }
994 return 0;
995 }
996
997 static int snd_ac97_bus_dev_free(struct snd_device *device)
998 {
999 struct snd_ac97_bus *bus = device->device_data;
1000 return snd_ac97_bus_free(bus);
1001 }
1002
1003 static int snd_ac97_free(struct snd_ac97 *ac97)
1004 {
1005 if (ac97) {
1006 #ifdef CONFIG_SND_AC97_POWER_SAVE
1007 cancel_delayed_work(&ac97->power_work);
1008 flush_scheduled_work();
1009 #endif
1010 snd_ac97_proc_done(ac97);
1011 if (ac97->bus)
1012 ac97->bus->codec[ac97->num] = NULL;
1013 if (ac97->private_free)
1014 ac97->private_free(ac97);
1015 kfree(ac97);
1016 }
1017 return 0;
1018 }
1019
1020 static int snd_ac97_dev_free(struct snd_device *device)
1021 {
1022 struct snd_ac97 *ac97 = device->device_data;
1023 snd_ac97_powerdown(ac97); /* for avoiding click noises during shut down */
1024 return snd_ac97_free(ac97);
1025 }
1026
1027 static int snd_ac97_try_volume_mix(struct snd_ac97 * ac97, int reg)
1028 {
1029 unsigned short val, mask = 0x8000;
1030
1031 if (! snd_ac97_valid_reg(ac97, reg))
1032 return 0;
1033
1034 switch (reg) {
1035 case AC97_MASTER_TONE:
1036 return ac97->caps & 0x04 ? 1 : 0;
1037 case AC97_HEADPHONE:
1038 return ac97->caps & 0x10 ? 1 : 0;
1039 case AC97_REC_GAIN_MIC:
1040 return ac97->caps & 0x01 ? 1 : 0;
1041 case AC97_3D_CONTROL:
1042 if (ac97->caps & 0x7c00) {
1043 val = snd_ac97_read(ac97, reg);
1044 /* if nonzero - fixed and we can't set it */
1045 return val == 0;
1046 }
1047 return 0;
1048 case AC97_CENTER_LFE_MASTER: /* center */
1049 if ((ac97->ext_id & AC97_EI_CDAC) == 0)
1050 return 0;
1051 break;
1052 case AC97_CENTER_LFE_MASTER+1: /* lfe */
1053 if ((ac97->ext_id & AC97_EI_LDAC) == 0)
1054 return 0;
1055 reg = AC97_CENTER_LFE_MASTER;
1056 mask = 0x0080;
1057 break;
1058 case AC97_SURROUND_MASTER:
1059 if ((ac97->ext_id & AC97_EI_SDAC) == 0)
1060 return 0;
1061 break;
1062 }
1063
1064 val = snd_ac97_read(ac97, reg);
1065 if (!(val & mask)) {
1066 /* nothing seems to be here - mute flag is not set */
1067 /* try another test */
1068 snd_ac97_write_cache(ac97, reg, val | mask);
1069 val = snd_ac97_read(ac97, reg);
1070 val = snd_ac97_read(ac97, reg);
1071 if (!(val & mask))
1072 return 0; /* nothing here */
1073 }
1074 return 1; /* success, useable */
1075 }
1076
1077 static void check_volume_resolution(struct snd_ac97 *ac97, int reg, unsigned char *lo_max, unsigned char *hi_max)
1078 {
1079 unsigned short cbit[3] = { 0x20, 0x10, 0x01 };
1080 unsigned char max[3] = { 63, 31, 15 };
1081 int i;
1082
1083 /* first look up the static resolution table */
1084 if (ac97->res_table) {
1085 const struct snd_ac97_res_table *tbl;
1086 for (tbl = ac97->res_table; tbl->reg; tbl++) {
1087 if (tbl->reg == reg) {
1088 *lo_max = tbl->bits & 0xff;
1089 *hi_max = (tbl->bits >> 8) & 0xff;
1090 return;
1091 }
1092 }
1093 }
1094
1095 *lo_max = *hi_max = 0;
1096 for (i = 0 ; i < ARRAY_SIZE(cbit); i++) {
1097 unsigned short val;
1098 snd_ac97_write(ac97, reg, 0x8080 | cbit[i] | (cbit[i] << 8));
1099 /* Do the read twice due to buffers on some ac97 codecs.
1100 * e.g. The STAC9704 returns exactly what you wrote to the register
1101 * if you read it immediately. This causes the detect routine to fail.
1102 */
1103 val = snd_ac97_read(ac97, reg);
1104 val = snd_ac97_read(ac97, reg);
1105 if (! *lo_max && (val & 0x7f) == cbit[i])
1106 *lo_max = max[i];
1107 if (! *hi_max && ((val >> 8) & 0x7f) == cbit[i])
1108 *hi_max = max[i];
1109 if (*lo_max && *hi_max)
1110 break;
1111 }
1112 }
1113
1114 static int snd_ac97_try_bit(struct snd_ac97 * ac97, int reg, int bit)
1115 {
1116 unsigned short mask, val, orig, res;
1117
1118 mask = 1 << bit;
1119 orig = snd_ac97_read(ac97, reg);
1120 val = orig ^ mask;
1121 snd_ac97_write(ac97, reg, val);
1122 res = snd_ac97_read(ac97, reg);
1123 snd_ac97_write_cache(ac97, reg, orig);
1124 return res == val;
1125 }
1126
1127 /* check the volume resolution of center/lfe */
1128 static void snd_ac97_change_volume_params2(struct snd_ac97 * ac97, int reg, int shift, unsigned char *max)
1129 {
1130 unsigned short val, val1;
1131
1132 *max = 63;
1133 val = 0x8080 | (0x20 << shift);
1134 snd_ac97_write(ac97, reg, val);
1135 val1 = snd_ac97_read(ac97, reg);
1136 if (val != val1) {
1137 *max = 31;
1138 }
1139 /* reset volume to zero */
1140 snd_ac97_write_cache(ac97, reg, 0x8080);
1141 }
1142
1143 static inline int printable(unsigned int x)
1144 {
1145 x &= 0xff;
1146 if (x < ' ' || x >= 0x71) {
1147 if (x <= 0x89)
1148 return x - 0x71 + 'A';
1149 return '?';
1150 }
1151 return x;
1152 }
1153
1154 static struct snd_kcontrol *snd_ac97_cnew(const struct snd_kcontrol_new *_template,
1155 struct snd_ac97 * ac97)
1156 {
1157 struct snd_kcontrol_new template;
1158 memcpy(&template, _template, sizeof(template));
1159 template.index = ac97->num;
1160 return snd_ctl_new1(&template, ac97);
1161 }
1162
1163 /*
1164 * create mute switch(es) for normal stereo controls
1165 */
1166 static int snd_ac97_cmute_new_stereo(struct snd_card *card, char *name, int reg,
1167 int check_stereo, int check_amix,
1168 struct snd_ac97 *ac97)
1169 {
1170 struct snd_kcontrol *kctl;
1171 int err;
1172 unsigned short val, val1, mute_mask;
1173
1174 if (! snd_ac97_valid_reg(ac97, reg))
1175 return 0;
1176
1177 mute_mask = 0x8000;
1178 val = snd_ac97_read(ac97, reg);
1179 if (check_stereo || (ac97->flags & AC97_STEREO_MUTES)) {
1180 /* check whether both mute bits work */
1181 val1 = val | 0x8080;
1182 snd_ac97_write(ac97, reg, val1);
1183 if (val1 == snd_ac97_read(ac97, reg))
1184 mute_mask = 0x8080;
1185 }
1186 if (mute_mask == 0x8080) {
1187 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 15, 7, 1, 1);
1188 if (check_amix)
1189 tmp.private_value |= (1 << 30);
1190 tmp.index = ac97->num;
1191 kctl = snd_ctl_new1(&tmp, ac97);
1192 } else {
1193 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 15, 1, 1);
1194 if (check_amix)
1195 tmp.private_value |= (1 << 30);
1196 tmp.index = ac97->num;
1197 kctl = snd_ctl_new1(&tmp, ac97);
1198 }
1199 err = snd_ctl_add(card, kctl);
1200 if (err < 0)
1201 return err;
1202 /* mute as default */
1203 snd_ac97_write_cache(ac97, reg, val | mute_mask);
1204 return 0;
1205 }
1206
1207 /*
1208 * set dB information
1209 */
1210 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
1211 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
1212 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
1213 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
1214 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
1215
1216 static const unsigned int *find_db_scale(unsigned int maxval)
1217 {
1218 switch (maxval) {
1219 case 0x0f: return db_scale_4bit;
1220 case 0x1f: return db_scale_5bit;
1221 case 0x3f: return db_scale_6bit;
1222 }
1223 return NULL;
1224 }
1225
1226 static void set_tlv_db_scale(struct snd_kcontrol *kctl, const unsigned int *tlv)
1227 {
1228 kctl->tlv.p = tlv;
1229 if (tlv)
1230 kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1231 }
1232
1233 /*
1234 * create a volume for normal stereo/mono controls
1235 */
1236 static int snd_ac97_cvol_new(struct snd_card *card, char *name, int reg, unsigned int lo_max,
1237 unsigned int hi_max, struct snd_ac97 *ac97)
1238 {
1239 int err;
1240 struct snd_kcontrol *kctl;
1241
1242 if (! snd_ac97_valid_reg(ac97, reg))
1243 return 0;
1244 if (hi_max) {
1245 /* invert */
1246 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 8, 0, lo_max, 1);
1247 tmp.index = ac97->num;
1248 kctl = snd_ctl_new1(&tmp, ac97);
1249 } else {
1250 /* invert */
1251 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 0, lo_max, 1);
1252 tmp.index = ac97->num;
1253 kctl = snd_ctl_new1(&tmp, ac97);
1254 }
1255 if (reg >= AC97_PHONE && reg <= AC97_PCM)
1256 set_tlv_db_scale(kctl, db_scale_5bit_12db_max);
1257 else
1258 set_tlv_db_scale(kctl, find_db_scale(lo_max));
1259 err = snd_ctl_add(card, kctl);
1260 if (err < 0)
1261 return err;
1262 snd_ac97_write_cache(ac97, reg,
1263 (snd_ac97_read(ac97, reg) & 0x8080) |
1264 lo_max | (hi_max << 8));
1265 return 0;
1266 }
1267
1268 /*
1269 * create a mute-switch and a volume for normal stereo/mono controls
1270 */
1271 static int snd_ac97_cmix_new_stereo(struct snd_card *card, const char *pfx,
1272 int reg, int check_stereo, int check_amix,
1273 struct snd_ac97 *ac97)
1274 {
1275 int err;
1276 char name[44];
1277 unsigned char lo_max, hi_max;
1278
1279 if (! snd_ac97_valid_reg(ac97, reg))
1280 return 0;
1281
1282 if (snd_ac97_try_bit(ac97, reg, 15)) {
1283 sprintf(name, "%s Switch", pfx);
1284 if ((err = snd_ac97_cmute_new_stereo(card, name, reg,
1285 check_stereo, check_amix,
1286 ac97)) < 0)
1287 return err;
1288 }
1289 check_volume_resolution(ac97, reg, &lo_max, &hi_max);
1290 if (lo_max) {
1291 sprintf(name, "%s Volume", pfx);
1292 if ((err = snd_ac97_cvol_new(card, name, reg, lo_max, hi_max, ac97)) < 0)
1293 return err;
1294 }
1295 return 0;
1296 }
1297
1298 #define snd_ac97_cmix_new(card, pfx, reg, acheck, ac97) \
1299 snd_ac97_cmix_new_stereo(card, pfx, reg, 0, acheck, ac97)
1300 #define snd_ac97_cmute_new(card, name, reg, acheck, ac97) \
1301 snd_ac97_cmute_new_stereo(card, name, reg, 0, acheck, ac97)
1302
1303 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97);
1304
1305 static int snd_ac97_mixer_build(struct snd_ac97 * ac97)
1306 {
1307 struct snd_card *card = ac97->bus->card;
1308 struct snd_kcontrol *kctl;
1309 int err;
1310 unsigned int idx;
1311 unsigned char max;
1312
1313 /* build master controls */
1314 /* AD claims to remove this control from AD1887, although spec v2.2 does not allow this */
1315 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER)) {
1316 if (ac97->flags & AC97_HAS_NO_MASTER_VOL)
1317 err = snd_ac97_cmute_new(card, "Master Playback Switch",
1318 AC97_MASTER, 0, ac97);
1319 else
1320 err = snd_ac97_cmix_new(card, "Master Playback",
1321 AC97_MASTER, 0, ac97);
1322 if (err < 0)
1323 return err;
1324 }
1325
1326 ac97->regs[AC97_CENTER_LFE_MASTER] = 0x8080;
1327
1328 /* build center controls */
1329 if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER))
1330 && !(ac97->flags & AC97_AD_MULTI)) {
1331 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_center[0], ac97))) < 0)
1332 return err;
1333 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_center[1], ac97))) < 0)
1334 return err;
1335 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 0, &max);
1336 kctl->private_value &= ~(0xff << 16);
1337 kctl->private_value |= (int)max << 16;
1338 set_tlv_db_scale(kctl, find_db_scale(max));
1339 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max);
1340 }
1341
1342 /* build LFE controls */
1343 if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER+1))
1344 && !(ac97->flags & AC97_AD_MULTI)) {
1345 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_lfe[0], ac97))) < 0)
1346 return err;
1347 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_lfe[1], ac97))) < 0)
1348 return err;
1349 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 8, &max);
1350 kctl->private_value &= ~(0xff << 16);
1351 kctl->private_value |= (int)max << 16;
1352 set_tlv_db_scale(kctl, find_db_scale(max));
1353 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max << 8);
1354 }
1355
1356 /* build surround controls */
1357 if ((snd_ac97_try_volume_mix(ac97, AC97_SURROUND_MASTER))
1358 && !(ac97->flags & AC97_AD_MULTI)) {
1359 /* Surround Master (0x38) is with stereo mutes */
1360 if ((err = snd_ac97_cmix_new_stereo(card, "Surround Playback",
1361 AC97_SURROUND_MASTER, 1, 0,
1362 ac97)) < 0)
1363 return err;
1364 }
1365
1366 /* build headphone controls */
1367 if (snd_ac97_try_volume_mix(ac97, AC97_HEADPHONE)) {
1368 if ((err = snd_ac97_cmix_new(card, "Headphone Playback",
1369 AC97_HEADPHONE, 0, ac97)) < 0)
1370 return err;
1371 }
1372
1373 /* build master mono controls */
1374 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_MONO)) {
1375 if ((err = snd_ac97_cmix_new(card, "Master Mono Playback",
1376 AC97_MASTER_MONO, 0, ac97)) < 0)
1377 return err;
1378 }
1379
1380 /* build master tone controls */
1381 if (!(ac97->flags & AC97_HAS_NO_TONE)) {
1382 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_TONE)) {
1383 for (idx = 0; idx < 2; idx++) {
1384 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97))) < 0)
1385 return err;
1386 if (ac97->id == AC97_ID_YMF743 ||
1387 ac97->id == AC97_ID_YMF753) {
1388 kctl->private_value &= ~(0xff << 16);
1389 kctl->private_value |= 7 << 16;
1390 }
1391 }
1392 snd_ac97_write_cache(ac97, AC97_MASTER_TONE, 0x0f0f);
1393 }
1394 }
1395
1396 /* build PC Speaker controls */
1397 if (!(ac97->flags & AC97_HAS_NO_PC_BEEP) &&
1398 ((ac97->flags & AC97_HAS_PC_BEEP) ||
1399 snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP))) {
1400 for (idx = 0; idx < 2; idx++)
1401 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_pc_beep[idx], ac97))) < 0)
1402 return err;
1403 set_tlv_db_scale(kctl, db_scale_4bit);
1404 snd_ac97_write_cache(ac97, AC97_PC_BEEP,
1405 snd_ac97_read(ac97, AC97_PC_BEEP) | 0x801e);
1406 }
1407
1408 /* build Phone controls */
1409 if (!(ac97->flags & AC97_HAS_NO_PHONE)) {
1410 if (snd_ac97_try_volume_mix(ac97, AC97_PHONE)) {
1411 if ((err = snd_ac97_cmix_new(card, "Phone Playback",
1412 AC97_PHONE, 1, ac97)) < 0)
1413 return err;
1414 }
1415 }
1416
1417 /* build MIC controls */
1418 if (!(ac97->flags & AC97_HAS_NO_MIC)) {
1419 if (snd_ac97_try_volume_mix(ac97, AC97_MIC)) {
1420 if ((err = snd_ac97_cmix_new(card, "Mic Playback",
1421 AC97_MIC, 1, ac97)) < 0)
1422 return err;
1423 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_boost, ac97))) < 0)
1424 return err;
1425 }
1426 }
1427
1428 /* build Line controls */
1429 if (snd_ac97_try_volume_mix(ac97, AC97_LINE)) {
1430 if ((err = snd_ac97_cmix_new(card, "Line Playback",
1431 AC97_LINE, 1, ac97)) < 0)
1432 return err;
1433 }
1434
1435 /* build CD controls */
1436 if (!(ac97->flags & AC97_HAS_NO_CD)) {
1437 if (snd_ac97_try_volume_mix(ac97, AC97_CD)) {
1438 if ((err = snd_ac97_cmix_new(card, "CD Playback",
1439 AC97_CD, 1, ac97)) < 0)
1440 return err;
1441 }
1442 }
1443
1444 /* build Video controls */
1445 if (!(ac97->flags & AC97_HAS_NO_VIDEO)) {
1446 if (snd_ac97_try_volume_mix(ac97, AC97_VIDEO)) {
1447 if ((err = snd_ac97_cmix_new(card, "Video Playback",
1448 AC97_VIDEO, 1, ac97)) < 0)
1449 return err;
1450 }
1451 }
1452
1453 /* build Aux controls */
1454 if (!(ac97->flags & AC97_HAS_NO_AUX)) {
1455 if (snd_ac97_try_volume_mix(ac97, AC97_AUX)) {
1456 if ((err = snd_ac97_cmix_new(card, "Aux Playback",
1457 AC97_AUX, 1, ac97)) < 0)
1458 return err;
1459 }
1460 }
1461
1462 /* build PCM controls */
1463 if (ac97->flags & AC97_AD_MULTI) {
1464 unsigned short init_val;
1465 if (ac97->flags & AC97_STEREO_MUTES)
1466 init_val = 0x9f9f;
1467 else
1468 init_val = 0x9f1f;
1469 for (idx = 0; idx < 2; idx++)
1470 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_pcm[idx], ac97))) < 0)
1471 return err;
1472 set_tlv_db_scale(kctl, db_scale_5bit);
1473 ac97->spec.ad18xx.pcmreg[0] = init_val;
1474 if (ac97->scaps & AC97_SCAP_SURROUND_DAC) {
1475 for (idx = 0; idx < 2; idx++)
1476 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_surround[idx], ac97))) < 0)
1477 return err;
1478 set_tlv_db_scale(kctl, db_scale_5bit);
1479 ac97->spec.ad18xx.pcmreg[1] = init_val;
1480 }
1481 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) {
1482 for (idx = 0; idx < 2; idx++)
1483 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_center[idx], ac97))) < 0)
1484 return err;
1485 set_tlv_db_scale(kctl, db_scale_5bit);
1486 for (idx = 0; idx < 2; idx++)
1487 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_lfe[idx], ac97))) < 0)
1488 return err;
1489 set_tlv_db_scale(kctl, db_scale_5bit);
1490 ac97->spec.ad18xx.pcmreg[2] = init_val;
1491 }
1492 snd_ac97_write_cache(ac97, AC97_PCM, init_val);
1493 } else {
1494 if (!(ac97->flags & AC97_HAS_NO_STD_PCM)) {
1495 if (ac97->flags & AC97_HAS_NO_PCM_VOL)
1496 err = snd_ac97_cmute_new(card,
1497 "PCM Playback Switch",
1498 AC97_PCM, 0, ac97);
1499 else
1500 err = snd_ac97_cmix_new(card, "PCM Playback",
1501 AC97_PCM, 0, ac97);
1502 if (err < 0)
1503 return err;
1504 }
1505 }
1506
1507 /* build Capture controls */
1508 if (!(ac97->flags & AC97_HAS_NO_REC_GAIN)) {
1509 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_src, ac97))) < 0)
1510 return err;
1511 if (snd_ac97_try_bit(ac97, AC97_REC_GAIN, 15)) {
1512 err = snd_ac97_cmute_new(card, "Capture Switch",
1513 AC97_REC_GAIN, 0, ac97);
1514 if (err < 0)
1515 return err;
1516 }
1517 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_control_capture_vol, ac97))) < 0)
1518 return err;
1519 set_tlv_db_scale(kctl, db_scale_rec_gain);
1520 snd_ac97_write_cache(ac97, AC97_REC_SEL, 0x0000);
1521 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x0000);
1522 }
1523 /* build MIC Capture controls */
1524 if (snd_ac97_try_volume_mix(ac97, AC97_REC_GAIN_MIC)) {
1525 for (idx = 0; idx < 2; idx++)
1526 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_mic_capture[idx], ac97))) < 0)
1527 return err;
1528 set_tlv_db_scale(kctl, db_scale_rec_gain);
1529 snd_ac97_write_cache(ac97, AC97_REC_GAIN_MIC, 0x0000);
1530 }
1531
1532 /* build PCM out path & mute control */
1533 if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 15)) {
1534 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_PCM_OUT], ac97))) < 0)
1535 return err;
1536 }
1537
1538 /* build Simulated Stereo Enhancement control */
1539 if (ac97->caps & 0x0008) {
1540 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_STEREO_ENHANCEMENT], ac97))) < 0)
1541 return err;
1542 }
1543
1544 /* build 3D Stereo Enhancement control */
1545 if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 13)) {
1546 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_3D], ac97))) < 0)
1547 return err;
1548 }
1549
1550 /* build Loudness control */
1551 if (ac97->caps & 0x0020) {
1552 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOUDNESS], ac97))) < 0)
1553 return err;
1554 }
1555
1556 /* build Mono output select control */
1557 if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 9)) {
1558 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MONO], ac97))) < 0)
1559 return err;
1560 }
1561
1562 /* build Mic select control */
1563 if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 8)) {
1564 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MIC], ac97))) < 0)
1565 return err;
1566 }
1567
1568 /* build ADC/DAC loopback control */
1569 if (enable_loopback && snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 7)) {
1570 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOOPBACK], ac97))) < 0)
1571 return err;
1572 }
1573
1574 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, ~AC97_GP_DRSS_MASK, 0x0000);
1575
1576 /* build 3D controls */
1577 if (ac97->build_ops->build_3d) {
1578 ac97->build_ops->build_3d(ac97);
1579 } else {
1580 if (snd_ac97_try_volume_mix(ac97, AC97_3D_CONTROL)) {
1581 unsigned short val;
1582 val = 0x0707;
1583 snd_ac97_write(ac97, AC97_3D_CONTROL, val);
1584 val = snd_ac97_read(ac97, AC97_3D_CONTROL);
1585 val = val == 0x0606;
1586 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
1587 return err;
1588 if (val)
1589 kctl->private_value = AC97_3D_CONTROL | (9 << 8) | (7 << 16);
1590 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[1], ac97))) < 0)
1591 return err;
1592 if (val)
1593 kctl->private_value = AC97_3D_CONTROL | (1 << 8) | (7 << 16);
1594 snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
1595 }
1596 }
1597
1598 /* build S/PDIF controls */
1599
1600 /* Hack for ASUS P5P800-VM, which does not indicate S/PDIF capability */
1601 if (ac97->subsystem_vendor == 0x1043 &&
1602 ac97->subsystem_device == 0x810f)
1603 ac97->ext_id |= AC97_EI_SPDIF;
1604
1605 if ((ac97->ext_id & AC97_EI_SPDIF) && !(ac97->scaps & AC97_SCAP_NO_SPDIF)) {
1606 if (ac97->build_ops->build_spdif) {
1607 if ((err = ac97->build_ops->build_spdif(ac97)) < 0)
1608 return err;
1609 } else {
1610 for (idx = 0; idx < 5; idx++)
1611 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_spdif[idx], ac97))) < 0)
1612 return err;
1613 if (ac97->build_ops->build_post_spdif) {
1614 if ((err = ac97->build_ops->build_post_spdif(ac97)) < 0)
1615 return err;
1616 }
1617 /* set default PCM S/PDIF params */
1618 /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
1619 snd_ac97_write_cache(ac97, AC97_SPDIF, 0x2a20);
1620 ac97->rates[AC97_RATES_SPDIF] = snd_ac97_determine_spdif_rates(ac97);
1621 }
1622 ac97->spdif_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
1623 }
1624
1625 /* build chip specific controls */
1626 if (ac97->build_ops->build_specific)
1627 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1628 return err;
1629
1630 if (snd_ac97_try_bit(ac97, AC97_POWERDOWN, 15)) {
1631 kctl = snd_ac97_cnew(&snd_ac97_control_eapd, ac97);
1632 if (! kctl)
1633 return -ENOMEM;
1634 if (ac97->scaps & AC97_SCAP_INV_EAPD)
1635 set_inv_eapd(ac97, kctl);
1636 if ((err = snd_ctl_add(card, kctl)) < 0)
1637 return err;
1638 }
1639
1640 return 0;
1641 }
1642
1643 static int snd_ac97_modem_build(struct snd_card *card, struct snd_ac97 * ac97)
1644 {
1645 int err, idx;
1646
1647 /*
1648 printk(KERN_DEBUG "AC97_GPIO_CFG = %x\n",
1649 snd_ac97_read(ac97,AC97_GPIO_CFG));
1650 */
1651 snd_ac97_write(ac97, AC97_GPIO_CFG, 0xffff & ~(AC97_GPIO_LINE1_OH));
1652 snd_ac97_write(ac97, AC97_GPIO_POLARITY, 0xffff & ~(AC97_GPIO_LINE1_OH));
1653 snd_ac97_write(ac97, AC97_GPIO_STICKY, 0xffff);
1654 snd_ac97_write(ac97, AC97_GPIO_WAKEUP, 0x0);
1655 snd_ac97_write(ac97, AC97_MISC_AFE, 0x0);
1656
1657 /* build modem switches */
1658 for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_modem_switches); idx++)
1659 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ac97_controls_modem_switches[idx], ac97))) < 0)
1660 return err;
1661
1662 /* build chip specific controls */
1663 if (ac97->build_ops->build_specific)
1664 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1665 return err;
1666
1667 return 0;
1668 }
1669
1670 static int snd_ac97_test_rate(struct snd_ac97 *ac97, int reg, int shadow_reg, int rate)
1671 {
1672 unsigned short val;
1673 unsigned int tmp;
1674
1675 tmp = ((unsigned int)rate * ac97->bus->clock) / 48000;
1676 snd_ac97_write_cache(ac97, reg, tmp & 0xffff);
1677 if (shadow_reg)
1678 snd_ac97_write_cache(ac97, shadow_reg, tmp & 0xffff);
1679 val = snd_ac97_read(ac97, reg);
1680 return val == (tmp & 0xffff);
1681 }
1682
1683 static void snd_ac97_determine_rates(struct snd_ac97 *ac97, int reg, int shadow_reg, unsigned int *r_result)
1684 {
1685 unsigned int result = 0;
1686 unsigned short saved;
1687
1688 if (ac97->bus->no_vra) {
1689 *r_result = SNDRV_PCM_RATE_48000;
1690 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1691 reg == AC97_PCM_FRONT_DAC_RATE)
1692 *r_result |= SNDRV_PCM_RATE_96000;
1693 return;
1694 }
1695
1696 saved = snd_ac97_read(ac97, reg);
1697 if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE)
1698 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1699 AC97_EA_DRA, 0);
1700 /* test a non-standard rate */
1701 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11000))
1702 result |= SNDRV_PCM_RATE_CONTINUOUS;
1703 /* let's try to obtain standard rates */
1704 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 8000))
1705 result |= SNDRV_PCM_RATE_8000;
1706 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11025))
1707 result |= SNDRV_PCM_RATE_11025;
1708 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 16000))
1709 result |= SNDRV_PCM_RATE_16000;
1710 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 22050))
1711 result |= SNDRV_PCM_RATE_22050;
1712 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 32000))
1713 result |= SNDRV_PCM_RATE_32000;
1714 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 44100))
1715 result |= SNDRV_PCM_RATE_44100;
1716 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 48000))
1717 result |= SNDRV_PCM_RATE_48000;
1718 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1719 reg == AC97_PCM_FRONT_DAC_RATE) {
1720 /* test standard double rates */
1721 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1722 AC97_EA_DRA, AC97_EA_DRA);
1723 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 64000 / 2))
1724 result |= SNDRV_PCM_RATE_64000;
1725 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 88200 / 2))
1726 result |= SNDRV_PCM_RATE_88200;
1727 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 96000 / 2))
1728 result |= SNDRV_PCM_RATE_96000;
1729 /* some codecs don't support variable double rates */
1730 if (!snd_ac97_test_rate(ac97, reg, shadow_reg, 76100 / 2))
1731 result &= ~SNDRV_PCM_RATE_CONTINUOUS;
1732 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1733 AC97_EA_DRA, 0);
1734 }
1735 /* restore the default value */
1736 snd_ac97_write_cache(ac97, reg, saved);
1737 if (shadow_reg)
1738 snd_ac97_write_cache(ac97, shadow_reg, saved);
1739 *r_result = result;
1740 }
1741
1742 /* check AC97_SPDIF register to accept which sample rates */
1743 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97)
1744 {
1745 unsigned int result = 0;
1746 int i;
1747 static unsigned short ctl_bits[] = {
1748 AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K
1749 };
1750 static unsigned int rate_bits[] = {
1751 SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000
1752 };
1753
1754 for (i = 0; i < (int)ARRAY_SIZE(ctl_bits); i++) {
1755 snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, ctl_bits[i]);
1756 if ((snd_ac97_read(ac97, AC97_SPDIF) & AC97_SC_SPSR_MASK) == ctl_bits[i])
1757 result |= rate_bits[i];
1758 }
1759 return result;
1760 }
1761
1762 /* look for the codec id table matching with the given id */
1763 static const struct ac97_codec_id *look_for_codec_id(const struct ac97_codec_id *table,
1764 unsigned int id)
1765 {
1766 const struct ac97_codec_id *pid;
1767
1768 for (pid = table; pid->id; pid++)
1769 if (pid->id == (id & pid->mask))
1770 return pid;
1771 return NULL;
1772 }
1773
1774 void snd_ac97_get_name(struct snd_ac97 *ac97, unsigned int id, char *name, int modem)
1775 {
1776 const struct ac97_codec_id *pid;
1777
1778 sprintf(name, "0x%x %c%c%c", id,
1779 printable(id >> 24),
1780 printable(id >> 16),
1781 printable(id >> 8));
1782 pid = look_for_codec_id(snd_ac97_codec_id_vendors, id);
1783 if (! pid)
1784 return;
1785
1786 strcpy(name, pid->name);
1787 if (ac97 && pid->patch) {
1788 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1789 (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1790 pid->patch(ac97);
1791 }
1792
1793 pid = look_for_codec_id(snd_ac97_codec_ids, id);
1794 if (pid) {
1795 strcat(name, " ");
1796 strcat(name, pid->name);
1797 if (pid->mask != 0xffffffff)
1798 sprintf(name + strlen(name), " rev %d", id & ~pid->mask);
1799 if (ac97 && pid->patch) {
1800 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1801 (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1802 pid->patch(ac97);
1803 }
1804 } else
1805 sprintf(name + strlen(name), " id %x", id & 0xff);
1806 }
1807
1808 /**
1809 * snd_ac97_get_short_name - retrieve codec name
1810 * @ac97: the codec instance
1811 *
1812 * Returns the short identifying name of the codec.
1813 */
1814 const char *snd_ac97_get_short_name(struct snd_ac97 *ac97)
1815 {
1816 const struct ac97_codec_id *pid;
1817
1818 for (pid = snd_ac97_codec_ids; pid->id; pid++)
1819 if (pid->id == (ac97->id & pid->mask))
1820 return pid->name;
1821 return "unknown codec";
1822 }
1823
1824 EXPORT_SYMBOL(snd_ac97_get_short_name);
1825
1826 /* wait for a while until registers are accessible after RESET
1827 * return 0 if ok, negative not ready
1828 */
1829 static int ac97_reset_wait(struct snd_ac97 *ac97, int timeout, int with_modem)
1830 {
1831 unsigned long end_time;
1832 unsigned short val;
1833
1834 end_time = jiffies + timeout;
1835 do {
1836
1837 /* use preliminary reads to settle the communication */
1838 snd_ac97_read(ac97, AC97_RESET);
1839 snd_ac97_read(ac97, AC97_VENDOR_ID1);
1840 snd_ac97_read(ac97, AC97_VENDOR_ID2);
1841 /* modem? */
1842 if (with_modem) {
1843 val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1844 if (val != 0xffff && (val & 1) != 0)
1845 return 0;
1846 }
1847 if (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) {
1848 /* probably only Xbox issue - all registers are read as zero */
1849 val = snd_ac97_read(ac97, AC97_VENDOR_ID1);
1850 if (val != 0 && val != 0xffff)
1851 return 0;
1852 } else {
1853 /* because the PCM or MASTER volume registers can be modified,
1854 * the REC_GAIN register is used for tests
1855 */
1856 /* test if we can write to the record gain volume register */
1857 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
1858 if ((snd_ac97_read(ac97, AC97_REC_GAIN) & 0x7fff) == 0x0a05)
1859 return 0;
1860 }
1861 schedule_timeout_uninterruptible(1);
1862 } while (time_after_eq(end_time, jiffies));
1863 return -ENODEV;
1864 }
1865
1866 /**
1867 * snd_ac97_bus - create an AC97 bus component
1868 * @card: the card instance
1869 * @num: the bus number
1870 * @ops: the bus callbacks table
1871 * @private_data: private data pointer for the new instance
1872 * @rbus: the pointer to store the new AC97 bus instance.
1873 *
1874 * Creates an AC97 bus component. An struct snd_ac97_bus instance is newly
1875 * allocated and initialized.
1876 *
1877 * The ops table must include valid callbacks (at least read and
1878 * write). The other callbacks, wait and reset, are not mandatory.
1879 *
1880 * The clock is set to 48000. If another clock is needed, set
1881 * (*rbus)->clock manually.
1882 *
1883 * The AC97 bus instance is registered as a low-level device, so you don't
1884 * have to release it manually.
1885 *
1886 * Returns zero if successful, or a negative error code on failure.
1887 */
1888 int snd_ac97_bus(struct snd_card *card, int num, struct snd_ac97_bus_ops *ops,
1889 void *private_data, struct snd_ac97_bus **rbus)
1890 {
1891 int err;
1892 struct snd_ac97_bus *bus;
1893 static struct snd_device_ops dev_ops = {
1894 .dev_free = snd_ac97_bus_dev_free,
1895 };
1896
1897 if (snd_BUG_ON(!card))
1898 return -EINVAL;
1899 bus = kzalloc(sizeof(*bus), GFP_KERNEL);
1900 if (bus == NULL)
1901 return -ENOMEM;
1902 bus->card = card;
1903 bus->num = num;
1904 bus->ops = ops;
1905 bus->private_data = private_data;
1906 bus->clock = 48000;
1907 spin_lock_init(&bus->bus_lock);
1908 snd_ac97_bus_proc_init(bus);
1909 if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
1910 snd_ac97_bus_free(bus);
1911 return err;
1912 }
1913 if (rbus)
1914 *rbus = bus;
1915 return 0;
1916 }
1917
1918 EXPORT_SYMBOL(snd_ac97_bus);
1919
1920 /* stop no dev release warning */
1921 static void ac97_device_release(struct device * dev)
1922 {
1923 }
1924
1925 /* register ac97 codec to bus */
1926 static int snd_ac97_dev_register(struct snd_device *device)
1927 {
1928 struct snd_ac97 *ac97 = device->device_data;
1929 int err;
1930
1931 ac97->dev.bus = &ac97_bus_type;
1932 ac97->dev.parent = ac97->bus->card->dev;
1933 ac97->dev.release = ac97_device_release;
1934 dev_set_name(&ac97->dev, "%d-%d:%s",
1935 ac97->bus->card->number, ac97->num,
1936 snd_ac97_get_short_name(ac97));
1937 if ((err = device_register(&ac97->dev)) < 0) {
1938 snd_printk(KERN_ERR "Can't register ac97 bus\n");
1939 ac97->dev.bus = NULL;
1940 return err;
1941 }
1942 return 0;
1943 }
1944
1945 /* disconnect ac97 codec */
1946 static int snd_ac97_dev_disconnect(struct snd_device *device)
1947 {
1948 struct snd_ac97 *ac97 = device->device_data;
1949 if (ac97->dev.bus)
1950 device_unregister(&ac97->dev);
1951 return 0;
1952 }
1953
1954 /* build_ops to do nothing */
1955 static struct snd_ac97_build_ops null_build_ops;
1956
1957 #ifdef CONFIG_SND_AC97_POWER_SAVE
1958 static void do_update_power(struct work_struct *work)
1959 {
1960 update_power_regs(
1961 container_of(work, struct snd_ac97, power_work.work));
1962 }
1963 #endif
1964
1965 /**
1966 * snd_ac97_mixer - create an Codec97 component
1967 * @bus: the AC97 bus which codec is attached to
1968 * @template: the template of ac97, including index, callbacks and
1969 * the private data.
1970 * @rac97: the pointer to store the new ac97 instance.
1971 *
1972 * Creates an Codec97 component. An struct snd_ac97 instance is newly
1973 * allocated and initialized from the template. The codec
1974 * is then initialized by the standard procedure.
1975 *
1976 * The template must include the codec number (num) and address (addr),
1977 * and the private data (private_data).
1978 *
1979 * The ac97 instance is registered as a low-level device, so you don't
1980 * have to release it manually.
1981 *
1982 * Returns zero if successful, or a negative error code on failure.
1983 */
1984 int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template, struct snd_ac97 **rac97)
1985 {
1986 int err;
1987 struct snd_ac97 *ac97;
1988 struct snd_card *card;
1989 char name[64];
1990 unsigned long end_time;
1991 unsigned int reg;
1992 const struct ac97_codec_id *pid;
1993 static struct snd_device_ops ops = {
1994 .dev_free = snd_ac97_dev_free,
1995 .dev_register = snd_ac97_dev_register,
1996 .dev_disconnect = snd_ac97_dev_disconnect,
1997 };
1998
1999 if (rac97)
2000 *rac97 = NULL;
2001 if (snd_BUG_ON(!bus || !template))
2002 return -EINVAL;
2003 if (snd_BUG_ON(template->num >= 4))
2004 return -EINVAL;
2005 if (bus->codec[template->num])
2006 return -EBUSY;
2007
2008 card = bus->card;
2009 ac97 = kzalloc(sizeof(*ac97), GFP_KERNEL);
2010 if (ac97 == NULL)
2011 return -ENOMEM;
2012 ac97->private_data = template->private_data;
2013 ac97->private_free = template->private_free;
2014 ac97->bus = bus;
2015 ac97->pci = template->pci;
2016 ac97->num = template->num;
2017 ac97->addr = template->addr;
2018 ac97->scaps = template->scaps;
2019 ac97->res_table = template->res_table;
2020 bus->codec[ac97->num] = ac97;
2021 mutex_init(&ac97->reg_mutex);
2022 mutex_init(&ac97->page_mutex);
2023 #ifdef CONFIG_SND_AC97_POWER_SAVE
2024 INIT_DELAYED_WORK(&ac97->power_work, do_update_power);
2025 #endif
2026
2027 #ifdef CONFIG_PCI
2028 if (ac97->pci) {
2029 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_VENDOR_ID, &ac97->subsystem_vendor);
2030 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_ID, &ac97->subsystem_device);
2031 }
2032 #endif
2033 if (bus->ops->reset) {
2034 bus->ops->reset(ac97);
2035 goto __access_ok;
2036 }
2037
2038 ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
2039 ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
2040 if (ac97->id && ac97->id != (unsigned int)-1) {
2041 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2042 if (pid && (pid->flags & AC97_DEFAULT_POWER_OFF))
2043 goto __access_ok;
2044 }
2045
2046 /* reset to defaults */
2047 if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2048 snd_ac97_write(ac97, AC97_RESET, 0);
2049 if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2050 snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2051 if (bus->ops->wait)
2052 bus->ops->wait(ac97);
2053 else {
2054 udelay(50);
2055 if (ac97->scaps & AC97_SCAP_SKIP_AUDIO)
2056 err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 1);
2057 else {
2058 err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 0);
2059 if (err < 0)
2060 err = ac97_reset_wait(ac97,
2061 msecs_to_jiffies(500), 1);
2062 }
2063 if (err < 0) {
2064 snd_printk(KERN_WARNING "AC'97 %d does not respond - RESET\n", ac97->num);
2065 /* proceed anyway - it's often non-critical */
2066 }
2067 }
2068 __access_ok:
2069 ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
2070 ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
2071 if (! (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) &&
2072 (ac97->id == 0x00000000 || ac97->id == 0xffffffff)) {
2073 snd_printk(KERN_ERR "AC'97 %d access is not valid [0x%x], removing mixer.\n", ac97->num, ac97->id);
2074 snd_ac97_free(ac97);
2075 return -EIO;
2076 }
2077 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2078 if (pid)
2079 ac97->flags |= pid->flags;
2080
2081 /* test for AC'97 */
2082 if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO) && !(ac97->scaps & AC97_SCAP_AUDIO)) {
2083 /* test if we can write to the record gain volume register */
2084 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a06);
2085 if (((err = snd_ac97_read(ac97, AC97_REC_GAIN)) & 0x7fff) == 0x0a06)
2086 ac97->scaps |= AC97_SCAP_AUDIO;
2087 }
2088 if (ac97->scaps & AC97_SCAP_AUDIO) {
2089 ac97->caps = snd_ac97_read(ac97, AC97_RESET);
2090 ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);
2091 if (ac97->ext_id == 0xffff) /* invalid combination */
2092 ac97->ext_id = 0;
2093 }
2094
2095 /* test for MC'97 */
2096 if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM) && !(ac97->scaps & AC97_SCAP_MODEM)) {
2097 ac97->ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2098 if (ac97->ext_mid == 0xffff) /* invalid combination */
2099 ac97->ext_mid = 0;
2100 if (ac97->ext_mid & 1)
2101 ac97->scaps |= AC97_SCAP_MODEM;
2102 }
2103
2104 if (!ac97_is_audio(ac97) && !ac97_is_modem(ac97)) {
2105 if (!(ac97->scaps & (AC97_SCAP_SKIP_AUDIO|AC97_SCAP_SKIP_MODEM)))
2106 snd_printk(KERN_ERR "AC'97 %d access error (not audio or modem codec)\n", ac97->num);
2107 snd_ac97_free(ac97);
2108 return -EACCES;
2109 }
2110
2111 if (bus->ops->reset) // FIXME: always skipping?
2112 goto __ready_ok;
2113
2114 /* FIXME: add powerdown control */
2115 if (ac97_is_audio(ac97)) {
2116 /* nothing should be in powerdown mode */
2117 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2118 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2119 snd_ac97_write_cache(ac97, AC97_RESET, 0); /* reset to defaults */
2120 udelay(100);
2121 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2122 }
2123 /* nothing should be in powerdown mode */
2124 snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0);
2125 end_time = jiffies + msecs_to_jiffies(120);
2126 do {
2127 if ((snd_ac97_read(ac97, AC97_POWERDOWN) & 0x0f) == 0x0f)
2128 goto __ready_ok;
2129 schedule_timeout_uninterruptible(1);
2130 } while (time_after_eq(end_time, jiffies));
2131 snd_printk(KERN_WARNING "AC'97 %d analog subsections not ready\n", ac97->num);
2132 }
2133
2134 /* FIXME: add powerdown control */
2135 if (ac97_is_modem(ac97)) {
2136 unsigned char tmp;
2137
2138 /* nothing should be in powerdown mode */
2139 /* note: it's important to set the rate at first */
2140 tmp = AC97_MEA_GPIO;
2141 if (ac97->ext_mid & AC97_MEI_LINE1) {
2142 snd_ac97_write_cache(ac97, AC97_LINE1_RATE, 8000);
2143 tmp |= AC97_MEA_ADC1 | AC97_MEA_DAC1;
2144 }
2145 if (ac97->ext_mid & AC97_MEI_LINE2) {
2146 snd_ac97_write_cache(ac97, AC97_LINE2_RATE, 8000);
2147 tmp |= AC97_MEA_ADC2 | AC97_MEA_DAC2;
2148 }
2149 if (ac97->ext_mid & AC97_MEI_HANDSET) {
2150 snd_ac97_write_cache(ac97, AC97_HANDSET_RATE, 8000);
2151 tmp |= AC97_MEA_HADC | AC97_MEA_HDAC;
2152 }
2153 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2154 udelay(100);
2155 /* nothing should be in powerdown mode */
2156 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2157 end_time = jiffies + msecs_to_jiffies(100);
2158 do {
2159 if ((snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS) & tmp) == tmp)
2160 goto __ready_ok;
2161 schedule_timeout_uninterruptible(1);
2162 } while (time_after_eq(end_time, jiffies));
2163 snd_printk(KERN_WARNING "MC'97 %d converters and GPIO not ready (0x%x)\n", ac97->num, snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS));
2164 }
2165
2166 __ready_ok:
2167 if (ac97_is_audio(ac97))
2168 ac97->addr = (ac97->ext_id & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT;
2169 else
2170 ac97->addr = (ac97->ext_mid & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT;
2171 if (ac97->ext_id & 0x01c9) { /* L/R, MIC, SDAC, LDAC VRA support */
2172 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2173 reg |= ac97->ext_id & 0x01c0; /* LDAC/SDAC/CDAC */
2174 if (! bus->no_vra)
2175 reg |= ac97->ext_id & 0x0009; /* VRA/VRM */
2176 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2177 }
2178 if ((ac97->ext_id & AC97_EI_DRA) && bus->dra) {
2179 /* Intel controllers require double rate data to be put in
2180 * slots 7+8, so let's hope the codec supports it. */
2181 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, AC97_GP_DRSS_78);
2182 if ((snd_ac97_read(ac97, AC97_GENERAL_PURPOSE) & AC97_GP_DRSS_MASK) == AC97_GP_DRSS_78)
2183 ac97->flags |= AC97_DOUBLE_RATE;
2184 /* restore to slots 10/11 to avoid the confliction with surrounds */
2185 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, 0);
2186 }
2187 if (ac97->ext_id & AC97_EI_VRA) { /* VRA support */
2188 snd_ac97_determine_rates(ac97, AC97_PCM_FRONT_DAC_RATE, 0, &ac97->rates[AC97_RATES_FRONT_DAC]);
2189 snd_ac97_determine_rates(ac97, AC97_PCM_LR_ADC_RATE, 0, &ac97->rates[AC97_RATES_ADC]);
2190 } else {
2191 ac97->rates[AC97_RATES_FRONT_DAC] = SNDRV_PCM_RATE_48000;
2192 if (ac97->flags & AC97_DOUBLE_RATE)
2193 ac97->rates[AC97_RATES_FRONT_DAC] |= SNDRV_PCM_RATE_96000;
2194 ac97->rates[AC97_RATES_ADC] = SNDRV_PCM_RATE_48000;
2195 }
2196 if (ac97->ext_id & AC97_EI_SPDIF) {
2197 /* codec specific code (patch) should override these values */
2198 ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_32000;
2199 }
2200 if (ac97->ext_id & AC97_EI_VRM) { /* MIC VRA support */
2201 snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]);
2202 } else {
2203 ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000;
2204 }
2205 if (ac97->ext_id & AC97_EI_SDAC) { /* SDAC support */
2206 snd_ac97_determine_rates(ac97, AC97_PCM_SURR_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_SURR_DAC]);
2207 ac97->scaps |= AC97_SCAP_SURROUND_DAC;
2208 }
2209 if (ac97->ext_id & AC97_EI_LDAC) { /* LDAC support */
2210 snd_ac97_determine_rates(ac97, AC97_PCM_LFE_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_LFE_DAC]);
2211 ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
2212 }
2213 /* additional initializations */
2214 if (bus->ops->init)
2215 bus->ops->init(ac97);
2216 snd_ac97_get_name(ac97, ac97->id, name, !ac97_is_audio(ac97));
2217 snd_ac97_get_name(NULL, ac97->id, name, !ac97_is_audio(ac97)); // ac97->id might be changed in the special setup code
2218 if (! ac97->build_ops)
2219 ac97->build_ops = &null_build_ops;
2220
2221 if (ac97_is_audio(ac97)) {
2222 char comp[16];
2223 if (card->mixername[0] == '\0') {
2224 strcpy(card->mixername, name);
2225 } else {
2226 if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2227 strcat(card->mixername, ",");
2228 strcat(card->mixername, name);
2229 }
2230 }
2231 sprintf(comp, "AC97a:%08x", ac97->id);
2232 if ((err = snd_component_add(card, comp)) < 0) {
2233 snd_ac97_free(ac97);
2234 return err;
2235 }
2236 if (snd_ac97_mixer_build(ac97) < 0) {
2237 snd_ac97_free(ac97);
2238 return -ENOMEM;
2239 }
2240 }
2241 if (ac97_is_modem(ac97)) {
2242 char comp[16];
2243 if (card->mixername[0] == '\0') {
2244 strcpy(card->mixername, name);
2245 } else {
2246 if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2247 strcat(card->mixername, ",");
2248 strcat(card->mixername, name);
2249 }
2250 }
2251 sprintf(comp, "AC97m:%08x", ac97->id);
2252 if ((err = snd_component_add(card, comp)) < 0) {
2253 snd_ac97_free(ac97);
2254 return err;
2255 }
2256 if (snd_ac97_modem_build(card, ac97) < 0) {
2257 snd_ac97_free(ac97);
2258 return -ENOMEM;
2259 }
2260 }
2261 if (ac97_is_audio(ac97))
2262 update_power_regs(ac97);
2263 snd_ac97_proc_init(ac97);
2264 if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ac97, &ops)) < 0) {
2265 snd_ac97_free(ac97);
2266 return err;
2267 }
2268 *rac97 = ac97;
2269 return 0;
2270 }
2271
2272 EXPORT_SYMBOL(snd_ac97_mixer);
2273
2274 /*
2275 * Power down the chip.
2276 *
2277 * MASTER and HEADPHONE registers are muted but the register cache values
2278 * are not changed, so that the values can be restored in snd_ac97_resume().
2279 */
2280 static void snd_ac97_powerdown(struct snd_ac97 *ac97)
2281 {
2282 unsigned short power;
2283
2284 if (ac97_is_audio(ac97)) {
2285 /* some codecs have stereo mute bits */
2286 snd_ac97_write(ac97, AC97_MASTER, 0x9f9f);
2287 snd_ac97_write(ac97, AC97_HEADPHONE, 0x9f9f);
2288 }
2289
2290 /* surround, CLFE, mic powerdown */
2291 power = ac97->regs[AC97_EXTENDED_STATUS];
2292 if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2293 power |= AC97_EA_PRJ;
2294 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2295 power |= AC97_EA_PRI | AC97_EA_PRK;
2296 power |= AC97_EA_PRL;
2297 snd_ac97_write(ac97, AC97_EXTENDED_STATUS, power);
2298
2299 /* powerdown external amplifier */
2300 if (ac97->scaps & AC97_SCAP_INV_EAPD)
2301 power = ac97->regs[AC97_POWERDOWN] & ~AC97_PD_EAPD;
2302 else if (! (ac97->scaps & AC97_SCAP_EAPD_LED))
2303 power = ac97->regs[AC97_POWERDOWN] | AC97_PD_EAPD;
2304 power |= AC97_PD_PR6; /* Headphone amplifier powerdown */
2305 power |= AC97_PD_PR0 | AC97_PD_PR1; /* ADC & DAC powerdown */
2306 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2307 udelay(100);
2308 power |= AC97_PD_PR2; /* Analog Mixer powerdown (Vref on) */
2309 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2310 if (ac97_is_power_save_mode(ac97)) {
2311 power |= AC97_PD_PR3; /* Analog Mixer powerdown */
2312 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2313 udelay(100);
2314 /* AC-link powerdown, internal Clk disable */
2315 /* FIXME: this may cause click noises on some boards */
2316 power |= AC97_PD_PR4 | AC97_PD_PR5;
2317 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2318 }
2319 }
2320
2321
2322 struct ac97_power_reg {
2323 unsigned short reg;
2324 unsigned short power_reg;
2325 unsigned short mask;
2326 };
2327
2328 enum { PWIDX_ADC, PWIDX_FRONT, PWIDX_CLFE, PWIDX_SURR, PWIDX_MIC, PWIDX_SIZE };
2329
2330 static struct ac97_power_reg power_regs[PWIDX_SIZE] = {
2331 [PWIDX_ADC] = { AC97_PCM_LR_ADC_RATE, AC97_POWERDOWN, AC97_PD_PR0},
2332 [PWIDX_FRONT] = { AC97_PCM_FRONT_DAC_RATE, AC97_POWERDOWN, AC97_PD_PR1},
2333 [PWIDX_CLFE] = { AC97_PCM_LFE_DAC_RATE, AC97_EXTENDED_STATUS,
2334 AC97_EA_PRI | AC97_EA_PRK},
2335 [PWIDX_SURR] = { AC97_PCM_SURR_DAC_RATE, AC97_EXTENDED_STATUS,
2336 AC97_EA_PRJ},
2337 [PWIDX_MIC] = { AC97_PCM_MIC_ADC_RATE, AC97_EXTENDED_STATUS,
2338 AC97_EA_PRL},
2339 };
2340
2341 #ifdef CONFIG_SND_AC97_POWER_SAVE
2342 /**
2343 * snd_ac97_update_power - update the powerdown register
2344 * @ac97: the codec instance
2345 * @reg: the rate register, e.g. AC97_PCM_FRONT_DAC_RATE
2346 * @powerup: non-zero when power up the part
2347 *
2348 * Update the AC97 powerdown register bits of the given part.
2349 */
2350 int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup)
2351 {
2352 int i;
2353
2354 if (! ac97)
2355 return 0;
2356
2357 if (reg) {
2358 /* SPDIF requires DAC power, too */
2359 if (reg == AC97_SPDIF)
2360 reg = AC97_PCM_FRONT_DAC_RATE;
2361 for (i = 0; i < PWIDX_SIZE; i++) {
2362 if (power_regs[i].reg == reg) {
2363 if (powerup)
2364 ac97->power_up |= (1 << i);
2365 else
2366 ac97->power_up &= ~(1 << i);
2367 break;
2368 }
2369 }
2370 }
2371
2372 if (ac97_is_power_save_mode(ac97) && !powerup)
2373 /* adjust power-down bits after two seconds delay
2374 * (for avoiding loud click noises for many (OSS) apps
2375 * that open/close frequently)
2376 */
2377 schedule_delayed_work(&ac97->power_work,
2378 msecs_to_jiffies(power_save * 1000));
2379 else {
2380 cancel_delayed_work(&ac97->power_work);
2381 update_power_regs(ac97);
2382 }
2383
2384 return 0;
2385 }
2386
2387 EXPORT_SYMBOL(snd_ac97_update_power);
2388 #endif /* CONFIG_SND_AC97_POWER_SAVE */
2389
2390 static void update_power_regs(struct snd_ac97 *ac97)
2391 {
2392 unsigned int power_up, bits;
2393 int i;
2394
2395 power_up = (1 << PWIDX_FRONT) | (1 << PWIDX_ADC);
2396 power_up |= (1 << PWIDX_MIC);
2397 if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2398 power_up |= (1 << PWIDX_SURR);
2399 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2400 power_up |= (1 << PWIDX_CLFE);
2401 #ifdef CONFIG_SND_AC97_POWER_SAVE
2402 if (ac97_is_power_save_mode(ac97))
2403 power_up = ac97->power_up;
2404 #endif
2405 if (power_up) {
2406 if (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2) {
2407 /* needs power-up analog mix and vref */
2408 snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2409 AC97_PD_PR3, 0);
2410 msleep(1);
2411 snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2412 AC97_PD_PR2, 0);
2413 }
2414 }
2415 for (i = 0; i < PWIDX_SIZE; i++) {
2416 if (power_up & (1 << i))
2417 bits = 0;
2418 else
2419 bits = power_regs[i].mask;
2420 snd_ac97_update_bits(ac97, power_regs[i].power_reg,
2421 power_regs[i].mask, bits);
2422 }
2423 if (! power_up) {
2424 if (! (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2)) {
2425 /* power down analog mix and vref */
2426 snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2427 AC97_PD_PR2, AC97_PD_PR2);
2428 snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2429 AC97_PD_PR3, AC97_PD_PR3);
2430 }
2431 }
2432 }
2433
2434
2435 #ifdef CONFIG_PM
2436 /**
2437 * snd_ac97_suspend - General suspend function for AC97 codec
2438 * @ac97: the ac97 instance
2439 *
2440 * Suspends the codec, power down the chip.
2441 */
2442 void snd_ac97_suspend(struct snd_ac97 *ac97)
2443 {
2444 if (! ac97)
2445 return;
2446 if (ac97->build_ops->suspend)
2447 ac97->build_ops->suspend(ac97);
2448 #ifdef CONFIG_SND_AC97_POWER_SAVE
2449 cancel_delayed_work(&ac97->power_work);
2450 flush_scheduled_work();
2451 #endif
2452 snd_ac97_powerdown(ac97);
2453 }
2454
2455 EXPORT_SYMBOL(snd_ac97_suspend);
2456
2457 /*
2458 * restore ac97 status
2459 */
2460 static void snd_ac97_restore_status(struct snd_ac97 *ac97)
2461 {
2462 int i;
2463
2464 for (i = 2; i < 0x7c ; i += 2) {
2465 if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
2466 continue;
2467 /* restore only accessible registers
2468 * some chip (e.g. nm256) may hang up when unsupported registers
2469 * are accessed..!
2470 */
2471 if (test_bit(i, ac97->reg_accessed)) {
2472 snd_ac97_write(ac97, i, ac97->regs[i]);
2473 snd_ac97_read(ac97, i);
2474 }
2475 }
2476 }
2477
2478 /*
2479 * restore IEC958 status
2480 */
2481 static void snd_ac97_restore_iec958(struct snd_ac97 *ac97)
2482 {
2483 if (ac97->ext_id & AC97_EI_SPDIF) {
2484 if (ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_SPDIF) {
2485 /* reset spdif status */
2486 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
2487 snd_ac97_write(ac97, AC97_EXTENDED_STATUS, ac97->regs[AC97_EXTENDED_STATUS]);
2488 if (ac97->flags & AC97_CS_SPDIF)
2489 snd_ac97_write(ac97, AC97_CSR_SPDIF, ac97->regs[AC97_CSR_SPDIF]);
2490 else
2491 snd_ac97_write(ac97, AC97_SPDIF, ac97->regs[AC97_SPDIF]);
2492 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
2493 }
2494 }
2495 }
2496
2497 /**
2498 * snd_ac97_resume - General resume function for AC97 codec
2499 * @ac97: the ac97 instance
2500 *
2501 * Do the standard resume procedure, power up and restoring the
2502 * old register values.
2503 */
2504 void snd_ac97_resume(struct snd_ac97 *ac97)
2505 {
2506 unsigned long end_time;
2507
2508 if (! ac97)
2509 return;
2510
2511 if (ac97->bus->ops->reset) {
2512 ac97->bus->ops->reset(ac97);
2513 goto __reset_ready;
2514 }
2515
2516 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2517 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2518 if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2519 snd_ac97_write(ac97, AC97_RESET, 0);
2520 else if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2521 snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2522 udelay(100);
2523 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2524 }
2525 snd_ac97_write(ac97, AC97_GENERAL_PURPOSE, 0);
2526
2527 snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]);
2528 if (ac97_is_audio(ac97)) {
2529 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8101);
2530 end_time = jiffies + msecs_to_jiffies(100);
2531 do {
2532 if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101)
2533 break;
2534 schedule_timeout_uninterruptible(1);
2535 } while (time_after_eq(end_time, jiffies));
2536 /* FIXME: extra delay */
2537 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8000);
2538 if (snd_ac97_read(ac97, AC97_MASTER) != 0x8000)
2539 msleep(250);
2540 } else {
2541 end_time = jiffies + msecs_to_jiffies(100);
2542 do {
2543 unsigned short val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2544 if (val != 0xffff && (val & 1) != 0)
2545 break;
2546 schedule_timeout_uninterruptible(1);
2547 } while (time_after_eq(end_time, jiffies));
2548 }
2549 __reset_ready:
2550
2551 if (ac97->bus->ops->init)
2552 ac97->bus->ops->init(ac97);
2553
2554 if (ac97->build_ops->resume)
2555 ac97->build_ops->resume(ac97);
2556 else {
2557 snd_ac97_restore_status(ac97);
2558 snd_ac97_restore_iec958(ac97);
2559 }
2560 }
2561
2562 EXPORT_SYMBOL(snd_ac97_resume);
2563 #endif
2564
2565
2566 /*
2567 * Hardware tuning
2568 */
2569 static void set_ctl_name(char *dst, const char *src, const char *suffix)
2570 {
2571 if (suffix)
2572 sprintf(dst, "%s %s", src, suffix);
2573 else
2574 strcpy(dst, src);
2575 }
2576
2577 /* remove the control with the given name and optional suffix */
2578 static int snd_ac97_remove_ctl(struct snd_ac97 *ac97, const char *name,
2579 const char *suffix)
2580 {
2581 struct snd_ctl_elem_id id;
2582 memset(&id, 0, sizeof(id));
2583 set_ctl_name(id.name, name, suffix);
2584 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2585 return snd_ctl_remove_id(ac97->bus->card, &id);
2586 }
2587
2588 static struct snd_kcontrol *ctl_find(struct snd_ac97 *ac97, const char *name, const char *suffix)
2589 {
2590 struct snd_ctl_elem_id sid;
2591 memset(&sid, 0, sizeof(sid));
2592 set_ctl_name(sid.name, name, suffix);
2593 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2594 return snd_ctl_find_id(ac97->bus->card, &sid);
2595 }
2596
2597 /* rename the control with the given name and optional suffix */
2598 static int snd_ac97_rename_ctl(struct snd_ac97 *ac97, const char *src,
2599 const char *dst, const char *suffix)
2600 {
2601 struct snd_kcontrol *kctl = ctl_find(ac97, src, suffix);
2602 if (kctl) {
2603 set_ctl_name(kctl->id.name, dst, suffix);
2604 return 0;
2605 }
2606 return -ENOENT;
2607 }
2608
2609 /* rename both Volume and Switch controls - don't check the return value */
2610 static void snd_ac97_rename_vol_ctl(struct snd_ac97 *ac97, const char *src,
2611 const char *dst)
2612 {
2613 snd_ac97_rename_ctl(ac97, src, dst, "Switch");
2614 snd_ac97_rename_ctl(ac97, src, dst, "Volume");
2615 }
2616
2617 /* swap controls */
2618 static int snd_ac97_swap_ctl(struct snd_ac97 *ac97, const char *s1,
2619 const char *s2, const char *suffix)
2620 {
2621 struct snd_kcontrol *kctl1, *kctl2;
2622 kctl1 = ctl_find(ac97, s1, suffix);
2623 kctl2 = ctl_find(ac97, s2, suffix);
2624 if (kctl1 && kctl2) {
2625 set_ctl_name(kctl1->id.name, s2, suffix);
2626 set_ctl_name(kctl2->id.name, s1, suffix);
2627 return 0;
2628 }
2629 return -ENOENT;
2630 }
2631
2632 #if 1
2633 /* bind hp and master controls instead of using only hp control */
2634 static int bind_hp_volsw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2635 {
2636 int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2637 if (err > 0) {
2638 unsigned long priv_saved = kcontrol->private_value;
2639 kcontrol->private_value = (kcontrol->private_value & ~0xff) | AC97_HEADPHONE;
2640 snd_ac97_put_volsw(kcontrol, ucontrol);
2641 kcontrol->private_value = priv_saved;
2642 }
2643 return err;
2644 }
2645
2646 /* ac97 tune: bind Master and Headphone controls */
2647 static int tune_hp_only(struct snd_ac97 *ac97)
2648 {
2649 struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2650 struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2651 if (! msw || ! mvol)
2652 return -ENOENT;
2653 msw->put = bind_hp_volsw_put;
2654 mvol->put = bind_hp_volsw_put;
2655 snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2656 snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2657 return 0;
2658 }
2659
2660 #else
2661 /* ac97 tune: use Headphone control as master */
2662 static int tune_hp_only(struct snd_ac97 *ac97)
2663 {
2664 if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2665 return -ENOENT;
2666 snd_ac97_remove_ctl(ac97, "Master Playback", "Switch");
2667 snd_ac97_remove_ctl(ac97, "Master Playback", "Volume");
2668 snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2669 return 0;
2670 }
2671 #endif
2672
2673 /* ac97 tune: swap Headphone and Master controls */
2674 static int tune_swap_hp(struct snd_ac97 *ac97)
2675 {
2676 if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2677 return -ENOENT;
2678 snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Line-Out Playback");
2679 snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2680 return 0;
2681 }
2682
2683 /* ac97 tune: swap Surround and Master controls */
2684 static int tune_swap_surround(struct snd_ac97 *ac97)
2685 {
2686 if (snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Switch") ||
2687 snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Volume"))
2688 return -ENOENT;
2689 return 0;
2690 }
2691
2692 /* ac97 tune: set up mic sharing for AD codecs */
2693 static int tune_ad_sharing(struct snd_ac97 *ac97)
2694 {
2695 unsigned short scfg;
2696 if ((ac97->id & 0xffffff00) != 0x41445300) {
2697 snd_printk(KERN_ERR "ac97_quirk AD_SHARING is only for AD codecs\n");
2698 return -EINVAL;
2699 }
2700 /* Turn on OMS bit to route microphone to back panel */
2701 scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
2702 snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x0200);
2703 return 0;
2704 }
2705
2706 static const struct snd_kcontrol_new snd_ac97_alc_jack_detect =
2707 AC97_SINGLE("Jack Detect", AC97_ALC650_CLOCK, 5, 1, 0);
2708
2709 /* ac97 tune: set up ALC jack-select */
2710 static int tune_alc_jack(struct snd_ac97 *ac97)
2711 {
2712 if ((ac97->id & 0xffffff00) != 0x414c4700) {
2713 snd_printk(KERN_ERR "ac97_quirk ALC_JACK is only for Realtek codecs\n");
2714 return -EINVAL;
2715 }
2716 snd_ac97_update_bits(ac97, 0x7a, 0x20, 0x20); /* select jack detect function */
2717 snd_ac97_update_bits(ac97, 0x7a, 0x01, 0x01); /* Line-out auto mute */
2718 if (ac97->id == AC97_ID_ALC658D)
2719 snd_ac97_update_bits(ac97, 0x74, 0x0800, 0x0800);
2720 return snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_alc_jack_detect, ac97));
2721 }
2722
2723 /* ac97 tune: inversed EAPD bit */
2724 static int tune_inv_eapd(struct snd_ac97 *ac97)
2725 {
2726 struct snd_kcontrol *kctl = ctl_find(ac97, "External Amplifier", NULL);
2727 if (! kctl)
2728 return -ENOENT;
2729 set_inv_eapd(ac97, kctl);
2730 return 0;
2731 }
2732
2733 static int master_mute_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2734 {
2735 int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2736 if (err > 0) {
2737 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2738 int shift = (kcontrol->private_value >> 8) & 0x0f;
2739 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2740 unsigned short mask;
2741 if (shift != rshift)
2742 mask = 0x8080;
2743 else
2744 mask = 0x8000;
2745 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000,
2746 (ac97->regs[AC97_MASTER] & mask) == mask ?
2747 0x8000 : 0);
2748 }
2749 return err;
2750 }
2751
2752 /* ac97 tune: EAPD controls mute LED bound with the master mute */
2753 static int tune_mute_led(struct snd_ac97 *ac97)
2754 {
2755 struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2756 if (! msw)
2757 return -ENOENT;
2758 msw->put = master_mute_sw_put;
2759 snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2760 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000, 0x8000); /* mute LED on */
2761 ac97->scaps |= AC97_SCAP_EAPD_LED;
2762 return 0;
2763 }
2764
2765 static int hp_master_mute_sw_put(struct snd_kcontrol *kcontrol,
2766 struct snd_ctl_elem_value *ucontrol)
2767 {
2768 int err = bind_hp_volsw_put(kcontrol, ucontrol);
2769 if (err > 0) {
2770 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2771 int shift = (kcontrol->private_value >> 8) & 0x0f;
2772 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2773 unsigned short mask;
2774 if (shift != rshift)
2775 mask = 0x8080;
2776 else
2777 mask = 0x8000;
2778 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000,
2779 (ac97->regs[AC97_MASTER] & mask) == mask ?
2780 0x8000 : 0);
2781 }
2782 return err;
2783 }
2784
2785 static int tune_hp_mute_led(struct snd_ac97 *ac97)
2786 {
2787 struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2788 struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2789 if (! msw || ! mvol)
2790 return -ENOENT;
2791 msw->put = hp_master_mute_sw_put;
2792 mvol->put = bind_hp_volsw_put;
2793 snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2794 snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2795 snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2796 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000, 0x8000); /* mute LED on */
2797 return 0;
2798 }
2799
2800 struct quirk_table {
2801 const char *name;
2802 int (*func)(struct snd_ac97 *);
2803 };
2804
2805 static struct quirk_table applicable_quirks[] = {
2806 { "none", NULL },
2807 { "hp_only", tune_hp_only },
2808 { "swap_hp", tune_swap_hp },
2809 { "swap_surround", tune_swap_surround },
2810 { "ad_sharing", tune_ad_sharing },
2811 { "alc_jack", tune_alc_jack },
2812 { "inv_eapd", tune_inv_eapd },
2813 { "mute_led", tune_mute_led },
2814 { "hp_mute_led", tune_hp_mute_led },
2815 };
2816
2817 /* apply the quirk with the given type */
2818 static int apply_quirk(struct snd_ac97 *ac97, int type)
2819 {
2820 if (type <= 0)
2821 return 0;
2822 else if (type >= ARRAY_SIZE(applicable_quirks))
2823 return -EINVAL;
2824 if (applicable_quirks[type].func)
2825 return applicable_quirks[type].func(ac97);
2826 return 0;
2827 }
2828
2829 /* apply the quirk with the given name */
2830 static int apply_quirk_str(struct snd_ac97 *ac97, const char *typestr)
2831 {
2832 int i;
2833 struct quirk_table *q;
2834
2835 for (i = 0; i < ARRAY_SIZE(applicable_quirks); i++) {
2836 q = &applicable_quirks[i];
2837 if (q->name && ! strcmp(typestr, q->name))
2838 return apply_quirk(ac97, i);
2839 }
2840 /* for compatibility, accept the numbers, too */
2841 if (*typestr >= '0' && *typestr <= '9')
2842 return apply_quirk(ac97, (int)simple_strtoul(typestr, NULL, 10));
2843 return -EINVAL;
2844 }
2845
2846 /**
2847 * snd_ac97_tune_hardware - tune up the hardware
2848 * @ac97: the ac97 instance
2849 * @quirk: quirk list
2850 * @override: explicit quirk value (overrides the list if non-NULL)
2851 *
2852 * Do some workaround for each pci device, such as renaming of the
2853 * headphone (true line-out) control as "Master".
2854 * The quirk-list must be terminated with a zero-filled entry.
2855 *
2856 * Returns zero if successful, or a negative error code on failure.
2857 */
2858
2859 int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override)
2860 {
2861 int result;
2862
2863 /* quirk overriden? */
2864 if (override && strcmp(override, "-1") && strcmp(override, "default")) {
2865 result = apply_quirk_str(ac97, override);
2866 if (result < 0)
2867 snd_printk(KERN_ERR "applying quirk type %s failed (%d)\n", override, result);
2868 return result;
2869 }
2870
2871 if (! quirk)
2872 return -EINVAL;
2873
2874 for (; quirk->subvendor; quirk++) {
2875 if (quirk->subvendor != ac97->subsystem_vendor)
2876 continue;
2877 if ((! quirk->mask && quirk->subdevice == ac97->subsystem_device) ||
2878 quirk->subdevice == (quirk->mask & ac97->subsystem_device)) {
2879 if (quirk->codec_id && quirk->codec_id != ac97->id)
2880 continue;
2881 snd_printdd("ac97 quirk for %s (%04x:%04x)\n", quirk->name, ac97->subsystem_vendor, ac97->subsystem_device);
2882 result = apply_quirk(ac97, quirk->type);
2883 if (result < 0)
2884 snd_printk(KERN_ERR "applying quirk type %d for %s failed (%d)\n", quirk->type, quirk->name, result);
2885 return result;
2886 }
2887 }
2888 return 0;
2889 }
2890
2891 EXPORT_SYMBOL(snd_ac97_tune_hardware);
2892
2893 /*
2894 * INIT part
2895 */
2896
2897 static int __init alsa_ac97_init(void)
2898 {
2899 return 0;
2900 }
2901
2902 static void __exit alsa_ac97_exit(void)
2903 {
2904 }
2905
2906 module_init(alsa_ac97_init)
2907 module_exit(alsa_ac97_exit)
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