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block: fix module reference leak on put_disk() call for cgroups throttle
[linux/fpc-iii.git] / sound / pci / ac97 / ac97_codec.c
blob82259ca61e6442df952eae0681bff5fdee841f35
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/module.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 bool 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 /*
75 * This is an _inofficial_ Aztech Labs entry
76 * (value might differ from unknown official Aztech ID),
77 * currently used by the AC97 emulation of the almost-AC97 PCI168 card.
78 */
79 { 0x415a5400, 0xffffff00, "Aztech Labs (emulated)", NULL, NULL },
80 { 0x434d4900, 0xffffff00, "C-Media Electronics", NULL, NULL },
81 { 0x43525900, 0xffffff00, "Cirrus Logic", NULL, NULL },
82 { 0x43585400, 0xffffff00, "Conexant", NULL, NULL },
83 { 0x44543000, 0xffffff00, "Diamond Technology", NULL, NULL },
84 { 0x454d4300, 0xffffff00, "eMicro", NULL, NULL },
85 { 0x45838300, 0xffffff00, "ESS Technology", NULL, NULL },
86 { 0x48525300, 0xffffff00, "Intersil", NULL, NULL },
87 { 0x49434500, 0xffffff00, "ICEnsemble", NULL, NULL },
88 { 0x49544500, 0xffffff00, "ITE Tech.Inc", NULL, NULL },
89 { 0x4e534300, 0xffffff00, "National Semiconductor", NULL, NULL },
90 { 0x50534300, 0xffffff00, "Philips", NULL, NULL },
91 { 0x53494c00, 0xffffff00, "Silicon Laboratory", NULL, NULL },
92 { 0x53544d00, 0xffffff00, "STMicroelectronics", NULL, NULL },
93 { 0x54524100, 0xffffff00, "TriTech", NULL, NULL },
94 { 0x54584e00, 0xffffff00, "Texas Instruments", NULL, NULL },
95 { 0x56494100, 0xffffff00, "VIA Technologies", NULL, NULL },
96 { 0x57454300, 0xffffff00, "Winbond", NULL, NULL },
97 { 0x574d4c00, 0xffffff00, "Wolfson", NULL, NULL },
98 { 0x594d4800, 0xffffff00, "Yamaha", NULL, NULL },
99 { 0x83847600, 0xffffff00, "SigmaTel", NULL, NULL },
100 { 0, 0, NULL, NULL, NULL }
101 };
102
103 static const struct ac97_codec_id snd_ac97_codec_ids[] = {
104 { 0x41445303, 0xffffffff, "AD1819", patch_ad1819, NULL },
105 { 0x41445340, 0xffffffff, "AD1881", patch_ad1881, NULL },
106 { 0x41445348, 0xffffffff, "AD1881A", patch_ad1881, NULL },
107 { 0x41445360, 0xffffffff, "AD1885", patch_ad1885, NULL },
108 { 0x41445361, 0xffffffff, "AD1886", patch_ad1886, NULL },
109 { 0x41445362, 0xffffffff, "AD1887", patch_ad1881, NULL },
110 { 0x41445363, 0xffffffff, "AD1886A", patch_ad1881, NULL },
111 { 0x41445368, 0xffffffff, "AD1888", patch_ad1888, NULL },
112 { 0x41445370, 0xffffffff, "AD1980", patch_ad1980, NULL },
113 { 0x41445372, 0xffffffff, "AD1981A", patch_ad1981a, NULL },
114 { 0x41445374, 0xffffffff, "AD1981B", patch_ad1981b, NULL },
115 { 0x41445375, 0xffffffff, "AD1985", patch_ad1985, NULL },
116 { 0x41445378, 0xffffffff, "AD1986", patch_ad1986, NULL },
117 { 0x414b4d00, 0xffffffff, "AK4540", NULL, NULL },
118 { 0x414b4d01, 0xffffffff, "AK4542", NULL, NULL },
119 { 0x414b4d02, 0xffffffff, "AK4543", NULL, NULL },
120 { 0x414b4d06, 0xffffffff, "AK4544A", NULL, NULL },
121 { 0x414b4d07, 0xffffffff, "AK4545", NULL, NULL },
122 { 0x414c4300, 0xffffff00, "ALC100,100P", NULL, NULL },
123 { 0x414c4710, 0xfffffff0, "ALC200,200P", NULL, NULL },
124 { 0x414c4721, 0xffffffff, "ALC650D", NULL, NULL }, /* already patched */
125 { 0x414c4722, 0xffffffff, "ALC650E", NULL, NULL }, /* already patched */
126 { 0x414c4723, 0xffffffff, "ALC650F", NULL, NULL }, /* already patched */
127 { 0x414c4720, 0xfffffff0, "ALC650", patch_alc650, NULL },
128 { 0x414c4730, 0xffffffff, "ALC101", NULL, NULL },
129 { 0x414c4740, 0xfffffff0, "ALC202", NULL, NULL },
130 { 0x414c4750, 0xfffffff0, "ALC250", NULL, NULL },
131 { 0x414c4760, 0xfffffff0, "ALC655", patch_alc655, NULL },
132 { 0x414c4770, 0xfffffff0, "ALC203", patch_alc203, NULL },
133 { 0x414c4781, 0xffffffff, "ALC658D", NULL, NULL }, /* already patched */
134 { 0x414c4780, 0xfffffff0, "ALC658", patch_alc655, NULL },
135 { 0x414c4790, 0xfffffff0, "ALC850", patch_alc850, NULL },
136 { 0x415a5401, 0xffffffff, "AZF3328", patch_aztech_azf3328, NULL },
137 { 0x434d4941, 0xffffffff, "CMI9738", patch_cm9738, NULL },
138 { 0x434d4961, 0xffffffff, "CMI9739", patch_cm9739, NULL },
139 { 0x434d4969, 0xffffffff, "CMI9780", patch_cm9780, NULL },
140 { 0x434d4978, 0xffffffff, "CMI9761A", patch_cm9761, NULL },
141 { 0x434d4982, 0xffffffff, "CMI9761B", patch_cm9761, NULL },
142 { 0x434d4983, 0xffffffff, "CMI9761A+", patch_cm9761, NULL },
143 { 0x43525900, 0xfffffff8, "CS4297", NULL, NULL },
144 { 0x43525910, 0xfffffff8, "CS4297A", patch_cirrus_spdif, NULL },
145 { 0x43525920, 0xfffffff8, "CS4298", patch_cirrus_spdif, NULL },
146 { 0x43525928, 0xfffffff8, "CS4294", NULL, NULL },
147 { 0x43525930, 0xfffffff8, "CS4299", patch_cirrus_cs4299, NULL },
148 { 0x43525948, 0xfffffff8, "CS4201", NULL, NULL },
149 { 0x43525958, 0xfffffff8, "CS4205", patch_cirrus_spdif, NULL },
150 { 0x43525960, 0xfffffff8, "CS4291", NULL, NULL },
151 { 0x43525970, 0xfffffff8, "CS4202", NULL, NULL },
152 { 0x43585421, 0xffffffff, "HSD11246", NULL, NULL }, // SmartMC II
153 { 0x43585428, 0xfffffff8, "Cx20468", patch_conexant, NULL }, // SmartAMC fixme: the mask might be different
154 { 0x43585430, 0xffffffff, "Cx20468-31", patch_conexant, NULL },
155 { 0x43585431, 0xffffffff, "Cx20551", patch_cx20551, NULL },
156 { 0x44543031, 0xfffffff0, "DT0398", NULL, NULL },
157 { 0x454d4328, 0xffffffff, "EM28028", NULL, NULL }, // same as TR28028?
158 { 0x45838308, 0xffffffff, "ESS1988", NULL, NULL },
159 { 0x48525300, 0xffffff00, "HMP9701", NULL, NULL },
160 { 0x49434501, 0xffffffff, "ICE1230", NULL, NULL },
161 { 0x49434511, 0xffffffff, "ICE1232", NULL, NULL }, // alias VIA VT1611A?
162 { 0x49434514, 0xffffffff, "ICE1232A", NULL, NULL },
163 { 0x49434551, 0xffffffff, "VT1616", patch_vt1616, NULL },
164 { 0x49434552, 0xffffffff, "VT1616i", patch_vt1616, NULL }, // VT1616 compatible (chipset integrated)
165 { 0x49544520, 0xffffffff, "IT2226E", NULL, NULL },
166 { 0x49544561, 0xffffffff, "IT2646E", patch_it2646, NULL },
167 { 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL, NULL }, // only guess --jk
168 { 0x4e534331, 0xffffffff, "LM4549", NULL, NULL },
169 { 0x4e534350, 0xffffffff, "LM4550", patch_lm4550, NULL }, // volume wrap fix
170 { 0x50534304, 0xffffffff, "UCB1400", patch_ucb1400, NULL },
171 { 0x53494c20, 0xffffffe0, "Si3036,8", mpatch_si3036, mpatch_si3036, AC97_MODEM_PATCH },
172 { 0x53544d02, 0xffffffff, "ST7597", NULL, NULL },
173 { 0x54524102, 0xffffffff, "TR28022", NULL, NULL },
174 { 0x54524103, 0xffffffff, "TR28023", NULL, NULL },
175 { 0x54524106, 0xffffffff, "TR28026", NULL, NULL },
176 { 0x54524108, 0xffffffff, "TR28028", patch_tritech_tr28028, NULL }, // added by xin jin [07/09/99]
177 { 0x54524123, 0xffffffff, "TR28602", NULL, NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
178 { 0x54584e03, 0xffffffff, "TLV320AIC27", NULL, NULL },
179 { 0x54584e20, 0xffffffff, "TLC320AD9xC", NULL, NULL },
180 { 0x56494120, 0xfffffff0, "VIA1613", patch_vt1613, NULL },
181 { 0x56494161, 0xffffffff, "VIA1612A", NULL, NULL }, // modified ICE1232 with S/PDIF
182 { 0x56494170, 0xffffffff, "VIA1617A", patch_vt1617a, NULL }, // modified VT1616 with S/PDIF
183 { 0x56494182, 0xffffffff, "VIA1618", patch_vt1618, NULL },
184 { 0x57454301, 0xffffffff, "W83971D", NULL, NULL },
185 { 0x574d4c00, 0xffffffff, "WM9701,WM9701A", NULL, NULL },
186 { 0x574d4C03, 0xffffffff, "WM9703,WM9707,WM9708,WM9717", patch_wolfson03, NULL},
187 { 0x574d4C04, 0xffffffff, "WM9704M,WM9704Q", patch_wolfson04, NULL},
188 { 0x574d4C05, 0xffffffff, "WM9705,WM9710", patch_wolfson05, NULL},
189 { 0x574d4C09, 0xffffffff, "WM9709", NULL, NULL},
190 { 0x574d4C12, 0xffffffff, "WM9711,WM9712,WM9715", patch_wolfson11, NULL},
191 { 0x574d4c13, 0xffffffff, "WM9713,WM9714", patch_wolfson13, NULL, AC97_DEFAULT_POWER_OFF},
192 { 0x594d4800, 0xffffffff, "YMF743", patch_yamaha_ymf743, NULL },
193 { 0x594d4802, 0xffffffff, "YMF752", NULL, NULL },
194 { 0x594d4803, 0xffffffff, "YMF753", patch_yamaha_ymf753, NULL },
195 { 0x83847600, 0xffffffff, "STAC9700,83,84", patch_sigmatel_stac9700, NULL },
196 { 0x83847604, 0xffffffff, "STAC9701,3,4,5", NULL, NULL },
197 { 0x83847605, 0xffffffff, "STAC9704", NULL, NULL },
198 { 0x83847608, 0xffffffff, "STAC9708,11", patch_sigmatel_stac9708, NULL },
199 { 0x83847609, 0xffffffff, "STAC9721,23", patch_sigmatel_stac9721, NULL },
200 { 0x83847644, 0xffffffff, "STAC9744", patch_sigmatel_stac9744, NULL },
201 { 0x83847650, 0xffffffff, "STAC9750,51", NULL, NULL }, // patch?
202 { 0x83847652, 0xffffffff, "STAC9752,53", NULL, NULL }, // patch?
203 { 0x83847656, 0xffffffff, "STAC9756,57", patch_sigmatel_stac9756, NULL },
204 { 0x83847658, 0xffffffff, "STAC9758,59", patch_sigmatel_stac9758, NULL },
205 { 0x83847666, 0xffffffff, "STAC9766,67", NULL, NULL }, // patch?
206 { 0, 0, NULL, NULL, NULL }
207 };
208
209
210 static void update_power_regs(struct snd_ac97 *ac97);
211 #ifdef CONFIG_SND_AC97_POWER_SAVE
212 #define ac97_is_power_save_mode(ac97) \
213 ((ac97->scaps & AC97_SCAP_POWER_SAVE) && power_save)
214 #else
215 #define ac97_is_power_save_mode(ac97) 0
216 #endif
217
218 #define ac97_err(ac97, fmt, args...) \
219 dev_err((ac97)->bus->card->dev, fmt, ##args)
220 #define ac97_warn(ac97, fmt, args...) \
221 dev_warn((ac97)->bus->card->dev, fmt, ##args)
222 #define ac97_dbg(ac97, fmt, args...) \
223 dev_dbg((ac97)->bus->card->dev, fmt, ##args)
224
225 /*
226 * I/O routines
227 */
228
229 static int snd_ac97_valid_reg(struct snd_ac97 *ac97, unsigned short reg)
230 {
231 /* filter some registers for buggy codecs */
232 switch (ac97->id) {
233 case AC97_ID_ST_AC97_ID4:
234 if (reg == 0x08)
235 return 0;
236 /* fall through */
237 case AC97_ID_ST7597:
238 if (reg == 0x22 || reg == 0x7a)
239 return 1;
240 /* fall through */
241 case AC97_ID_AK4540:
242 case AC97_ID_AK4542:
243 if (reg <= 0x1c || reg == 0x20 || reg == 0x26 || reg >= 0x7c)
244 return 1;
245 return 0;
246 case AC97_ID_AD1819: /* AD1819 */
247 case AC97_ID_AD1881: /* AD1881 */
248 case AC97_ID_AD1881A: /* AD1881A */
249 if (reg >= 0x3a && reg <= 0x6e) /* 0x59 */
250 return 0;
251 return 1;
252 case AC97_ID_AD1885: /* AD1885 */
253 case AC97_ID_AD1886: /* AD1886 */
254 case AC97_ID_AD1886A: /* AD1886A - !!verify!! --jk */
255 case AC97_ID_AD1887: /* AD1887 - !!verify!! --jk */
256 if (reg == 0x5a)
257 return 1;
258 if (reg >= 0x3c && reg <= 0x6e) /* 0x59 */
259 return 0;
260 return 1;
261 case AC97_ID_STAC9700:
262 case AC97_ID_STAC9704:
263 case AC97_ID_STAC9705:
264 case AC97_ID_STAC9708:
265 case AC97_ID_STAC9721:
266 case AC97_ID_STAC9744:
267 case AC97_ID_STAC9756:
268 if (reg <= 0x3a || reg >= 0x5a)
269 return 1;
270 return 0;
271 }
272 return 1;
273 }
274
275 /**
276 * snd_ac97_write - write a value on the given register
277 * @ac97: the ac97 instance
278 * @reg: the register to change
279 * @value: the value to set
280 *
281 * Writes a value on the given register. This will invoke the write
282 * callback directly after the register check.
283 * This function doesn't change the register cache unlike
284 * #snd_ca97_write_cache(), so use this only when you don't want to
285 * reflect the change to the suspend/resume state.
286 */
287 void snd_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
288 {
289 if (!snd_ac97_valid_reg(ac97, reg))
290 return;
291 if ((ac97->id & 0xffffff00) == AC97_ID_ALC100) {
292 /* Fix H/W bug of ALC100/100P */
293 if (reg == AC97_MASTER || reg == AC97_HEADPHONE)
294 ac97->bus->ops->write(ac97, AC97_RESET, 0); /* reset audio codec */
295 }
296 ac97->bus->ops->write(ac97, reg, value);
297 }
298
299 EXPORT_SYMBOL(snd_ac97_write);
300
301 /**
302 * snd_ac97_read - read a value from the given register
303 *
304 * @ac97: the ac97 instance
305 * @reg: the register to read
306 *
307 * Reads a value from the given register. This will invoke the read
308 * callback directly after the register check.
309 *
310 * Return: The read value.
311 */
312 unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
313 {
314 if (!snd_ac97_valid_reg(ac97, reg))
315 return 0;
316 return ac97->bus->ops->read(ac97, reg);
317 }
318
319 /* read a register - return the cached value if already read */
320 static inline unsigned short snd_ac97_read_cache(struct snd_ac97 *ac97, unsigned short reg)
321 {
322 if (! test_bit(reg, ac97->reg_accessed)) {
323 ac97->regs[reg] = ac97->bus->ops->read(ac97, reg);
324 // set_bit(reg, ac97->reg_accessed);
325 }
326 return ac97->regs[reg];
327 }
328
329 EXPORT_SYMBOL(snd_ac97_read);
330
331 /**
332 * snd_ac97_write_cache - write a value on the given register and update the cache
333 * @ac97: the ac97 instance
334 * @reg: the register to change
335 * @value: the value to set
336 *
337 * Writes a value on the given register and updates the register
338 * cache. The cached values are used for the cached-read and the
339 * suspend/resume.
340 */
341 void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
342 {
343 if (!snd_ac97_valid_reg(ac97, reg))
344 return;
345 mutex_lock(&ac97->reg_mutex);
346 ac97->regs[reg] = value;
347 ac97->bus->ops->write(ac97, reg, value);
348 set_bit(reg, ac97->reg_accessed);
349 mutex_unlock(&ac97->reg_mutex);
350 }
351
352 EXPORT_SYMBOL(snd_ac97_write_cache);
353
354 /**
355 * snd_ac97_update - update the value on the given register
356 * @ac97: the ac97 instance
357 * @reg: the register to change
358 * @value: the value to set
359 *
360 * Compares the value with the register cache and updates the value
361 * only when the value is changed.
362 *
363 * Return: 1 if the value is changed, 0 if no change, or a negative
364 * code on failure.
365 */
366 int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
367 {
368 int change;
369
370 if (!snd_ac97_valid_reg(ac97, reg))
371 return -EINVAL;
372 mutex_lock(&ac97->reg_mutex);
373 change = ac97->regs[reg] != value;
374 if (change) {
375 ac97->regs[reg] = value;
376 ac97->bus->ops->write(ac97, reg, value);
377 }
378 set_bit(reg, ac97->reg_accessed);
379 mutex_unlock(&ac97->reg_mutex);
380 return change;
381 }
382
383 EXPORT_SYMBOL(snd_ac97_update);
384
385 /**
386 * snd_ac97_update_bits - update the bits on the given register
387 * @ac97: the ac97 instance
388 * @reg: the register to change
389 * @mask: the bit-mask to change
390 * @value: the value to set
391 *
392 * Updates the masked-bits on the given register only when the value
393 * is changed.
394 *
395 * Return: 1 if the bits are changed, 0 if no change, or a negative
396 * code on failure.
397 */
398 int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value)
399 {
400 int change;
401
402 if (!snd_ac97_valid_reg(ac97, reg))
403 return -EINVAL;
404 mutex_lock(&ac97->reg_mutex);
405 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
406 mutex_unlock(&ac97->reg_mutex);
407 return change;
408 }
409
410 EXPORT_SYMBOL(snd_ac97_update_bits);
411
412 /* no lock version - see snd_ac97_update_bits() */
413 int snd_ac97_update_bits_nolock(struct snd_ac97 *ac97, unsigned short reg,
414 unsigned short mask, unsigned short value)
415 {
416 int change;
417 unsigned short old, new;
418
419 old = snd_ac97_read_cache(ac97, reg);
420 new = (old & ~mask) | (value & mask);
421 change = old != new;
422 if (change) {
423 ac97->regs[reg] = new;
424 ac97->bus->ops->write(ac97, reg, new);
425 }
426 set_bit(reg, ac97->reg_accessed);
427 return change;
428 }
429
430 static int snd_ac97_ad18xx_update_pcm_bits(struct snd_ac97 *ac97, int codec, unsigned short mask, unsigned short value)
431 {
432 int change;
433 unsigned short old, new, cfg;
434
435 mutex_lock(&ac97->page_mutex);
436 old = ac97->spec.ad18xx.pcmreg[codec];
437 new = (old & ~mask) | (value & mask);
438 change = old != new;
439 if (change) {
440 mutex_lock(&ac97->reg_mutex);
441 cfg = snd_ac97_read_cache(ac97, AC97_AD_SERIAL_CFG);
442 ac97->spec.ad18xx.pcmreg[codec] = new;
443 /* select single codec */
444 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
445 (cfg & ~0x7000) |
446 ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
447 /* update PCM bits */
448 ac97->bus->ops->write(ac97, AC97_PCM, new);
449 /* select all codecs */
450 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
451 cfg | 0x7000);
452 mutex_unlock(&ac97->reg_mutex);
453 }
454 mutex_unlock(&ac97->page_mutex);
455 return change;
456 }
457
458 /*
459 * Controls
460 */
461
462 static int snd_ac97_info_enum_double(struct snd_kcontrol *kcontrol,
463 struct snd_ctl_elem_info *uinfo)
464 {
465 struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
466
467 return snd_ctl_enum_info(uinfo, e->shift_l == e->shift_r ? 1 : 2,
468 e->mask, e->texts);
469 }
470
471 static int snd_ac97_get_enum_double(struct snd_kcontrol *kcontrol,
472 struct snd_ctl_elem_value *ucontrol)
473 {
474 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
475 struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
476 unsigned short val, bitmask;
477
478 for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
479 ;
480 val = snd_ac97_read_cache(ac97, e->reg);
481 ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
482 if (e->shift_l != e->shift_r)
483 ucontrol->value.enumerated.item[1] = (val >> e->shift_r) & (bitmask - 1);
484
485 return 0;
486 }
487
488 static int snd_ac97_put_enum_double(struct snd_kcontrol *kcontrol,
489 struct snd_ctl_elem_value *ucontrol)
490 {
491 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
492 struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
493 unsigned short val;
494 unsigned short mask, bitmask;
495
496 for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
497 ;
498 if (ucontrol->value.enumerated.item[0] > e->mask - 1)
499 return -EINVAL;
500 val = ucontrol->value.enumerated.item[0] << e->shift_l;
501 mask = (bitmask - 1) << e->shift_l;
502 if (e->shift_l != e->shift_r) {
503 if (ucontrol->value.enumerated.item[1] > e->mask - 1)
504 return -EINVAL;
505 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
506 mask |= (bitmask - 1) << e->shift_r;
507 }
508 return snd_ac97_update_bits(ac97, e->reg, mask, val);
509 }
510
511 /* save/restore ac97 v2.3 paging */
512 static int snd_ac97_page_save(struct snd_ac97 *ac97, int reg, struct snd_kcontrol *kcontrol)
513 {
514 int page_save = -1;
515 if ((kcontrol->private_value & (1<<25)) &&
516 (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23 &&
517 (reg >= 0x60 && reg < 0x70)) {
518 unsigned short page = (kcontrol->private_value >> 26) & 0x0f;
519 mutex_lock(&ac97->page_mutex); /* lock paging */
520 page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
521 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
522 }
523 return page_save;
524 }
525
526 static void snd_ac97_page_restore(struct snd_ac97 *ac97, int page_save)
527 {
528 if (page_save >= 0) {
529 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
530 mutex_unlock(&ac97->page_mutex); /* unlock paging */
531 }
532 }
533
534 /* volume and switch controls */
535 static int snd_ac97_info_volsw(struct snd_kcontrol *kcontrol,
536 struct snd_ctl_elem_info *uinfo)
537 {
538 int mask = (kcontrol->private_value >> 16) & 0xff;
539 int shift = (kcontrol->private_value >> 8) & 0x0f;
540 int rshift = (kcontrol->private_value >> 12) & 0x0f;
541
542 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
543 uinfo->count = shift == rshift ? 1 : 2;
544 uinfo->value.integer.min = 0;
545 uinfo->value.integer.max = mask;
546 return 0;
547 }
548
549 static int snd_ac97_get_volsw(struct snd_kcontrol *kcontrol,
550 struct snd_ctl_elem_value *ucontrol)
551 {
552 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
553 int reg = kcontrol->private_value & 0xff;
554 int shift = (kcontrol->private_value >> 8) & 0x0f;
555 int rshift = (kcontrol->private_value >> 12) & 0x0f;
556 int mask = (kcontrol->private_value >> 16) & 0xff;
557 int invert = (kcontrol->private_value >> 24) & 0x01;
558 int page_save;
559
560 page_save = snd_ac97_page_save(ac97, reg, kcontrol);
561 ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift) & mask;
562 if (shift != rshift)
563 ucontrol->value.integer.value[1] = (snd_ac97_read_cache(ac97, reg) >> rshift) & mask;
564 if (invert) {
565 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
566 if (shift != rshift)
567 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
568 }
569 snd_ac97_page_restore(ac97, page_save);
570 return 0;
571 }
572
573 static int snd_ac97_put_volsw(struct snd_kcontrol *kcontrol,
574 struct snd_ctl_elem_value *ucontrol)
575 {
576 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
577 int reg = kcontrol->private_value & 0xff;
578 int shift = (kcontrol->private_value >> 8) & 0x0f;
579 int rshift = (kcontrol->private_value >> 12) & 0x0f;
580 int mask = (kcontrol->private_value >> 16) & 0xff;
581 int invert = (kcontrol->private_value >> 24) & 0x01;
582 int err, page_save;
583 unsigned short val, val2, val_mask;
584
585 page_save = snd_ac97_page_save(ac97, reg, kcontrol);
586 val = (ucontrol->value.integer.value[0] & mask);
587 if (invert)
588 val = mask - val;
589 val_mask = mask << shift;
590 val = val << shift;
591 if (shift != rshift) {
592 val2 = (ucontrol->value.integer.value[1] & mask);
593 if (invert)
594 val2 = mask - val2;
595 val_mask |= mask << rshift;
596 val |= val2 << rshift;
597 }
598 err = snd_ac97_update_bits(ac97, reg, val_mask, val);
599 snd_ac97_page_restore(ac97, page_save);
600 #ifdef CONFIG_SND_AC97_POWER_SAVE
601 /* check analog mixer power-down */
602 if ((val_mask & AC97_PD_EAPD) &&
603 (kcontrol->private_value & (1<<30))) {
604 if (val & AC97_PD_EAPD)
605 ac97->power_up &= ~(1 << (reg>>1));
606 else
607 ac97->power_up |= 1 << (reg>>1);
608 update_power_regs(ac97);
609 }
610 #endif
611 return err;
612 }
613
614 static const struct snd_kcontrol_new snd_ac97_controls_master_mono[2] = {
615 AC97_SINGLE("Master Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
616 AC97_SINGLE("Master Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1)
617 };
618
619 static const struct snd_kcontrol_new snd_ac97_controls_tone[2] = {
620 AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1),
621 AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1)
622 };
623
624 static const struct snd_kcontrol_new snd_ac97_controls_pc_beep[2] = {
625 AC97_SINGLE("Beep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
626 AC97_SINGLE("Beep Playback Volume", AC97_PC_BEEP, 1, 15, 1)
627 };
628
629 static const struct snd_kcontrol_new snd_ac97_controls_mic_boost =
630 AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0);
631
632
633 static const char* std_rec_sel[] = {"Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone"};
634 static const char* std_3d_path[] = {"pre 3D", "post 3D"};
635 static const char* std_mix[] = {"Mix", "Mic"};
636 static const char* std_mic[] = {"Mic1", "Mic2"};
637
638 static const struct ac97_enum std_enum[] = {
639 AC97_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, std_rec_sel),
640 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, std_3d_path),
641 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, std_mix),
642 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, std_mic),
643 };
644
645 static const struct snd_kcontrol_new snd_ac97_control_capture_src =
646 AC97_ENUM("Capture Source", std_enum[0]);
647
648 static const struct snd_kcontrol_new snd_ac97_control_capture_vol =
649 AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0);
650
651 static const struct snd_kcontrol_new snd_ac97_controls_mic_capture[2] = {
652 AC97_SINGLE("Mic Capture Switch", AC97_REC_GAIN_MIC, 15, 1, 1),
653 AC97_SINGLE("Mic Capture Volume", AC97_REC_GAIN_MIC, 0, 15, 0)
654 };
655
656 enum {
657 AC97_GENERAL_PCM_OUT = 0,
658 AC97_GENERAL_STEREO_ENHANCEMENT,
659 AC97_GENERAL_3D,
660 AC97_GENERAL_LOUDNESS,
661 AC97_GENERAL_MONO,
662 AC97_GENERAL_MIC,
663 AC97_GENERAL_LOOPBACK
664 };
665
666 static const struct snd_kcontrol_new snd_ac97_controls_general[7] = {
667 AC97_ENUM("PCM Out Path & Mute", std_enum[1]),
668 AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0),
669 AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
670 AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0),
671 AC97_ENUM("Mono Output Select", std_enum[2]),
672 AC97_ENUM("Mic Select", std_enum[3]),
673 AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0)
674 };
675
676 static const struct snd_kcontrol_new snd_ac97_controls_3d[2] = {
677 AC97_SINGLE("3D Control - Center", AC97_3D_CONTROL, 8, 15, 0),
678 AC97_SINGLE("3D Control - Depth", AC97_3D_CONTROL, 0, 15, 0)
679 };
680
681 static const struct snd_kcontrol_new snd_ac97_controls_center[2] = {
682 AC97_SINGLE("Center Playback Switch", AC97_CENTER_LFE_MASTER, 7, 1, 1),
683 AC97_SINGLE("Center Playback Volume", AC97_CENTER_LFE_MASTER, 0, 31, 1)
684 };
685
686 static const struct snd_kcontrol_new snd_ac97_controls_lfe[2] = {
687 AC97_SINGLE("LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 1, 1),
688 AC97_SINGLE("LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 31, 1)
689 };
690
691 static const struct snd_kcontrol_new snd_ac97_control_eapd =
692 AC97_SINGLE("External Amplifier", AC97_POWERDOWN, 15, 1, 1);
693
694 static const struct snd_kcontrol_new snd_ac97_controls_modem_switches[2] = {
695 AC97_SINGLE("Off-hook Switch", AC97_GPIO_STATUS, 0, 1, 0),
696 AC97_SINGLE("Caller ID Switch", AC97_GPIO_STATUS, 2, 1, 0)
697 };
698
699 /* change the existing EAPD control as inverted */
700 static void set_inv_eapd(struct snd_ac97 *ac97, struct snd_kcontrol *kctl)
701 {
702 kctl->private_value = AC97_SINGLE_VALUE(AC97_POWERDOWN, 15, 1, 0);
703 snd_ac97_update_bits(ac97, AC97_POWERDOWN, (1<<15), (1<<15)); /* EAPD up */
704 ac97->scaps |= AC97_SCAP_INV_EAPD;
705 }
706
707 static int snd_ac97_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
708 {
709 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
710 uinfo->count = 1;
711 return 0;
712 }
713
714 static int snd_ac97_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
715 {
716 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
717 IEC958_AES0_NONAUDIO |
718 IEC958_AES0_CON_EMPHASIS_5015 |
719 IEC958_AES0_CON_NOT_COPYRIGHT;
720 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
721 IEC958_AES1_CON_ORIGINAL;
722 ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
723 return 0;
724 }
725
726 static int snd_ac97_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
727 {
728 /* FIXME: AC'97 spec doesn't say which bits are used for what */
729 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
730 IEC958_AES0_NONAUDIO |
731 IEC958_AES0_PRO_FS |
732 IEC958_AES0_PRO_EMPHASIS_5015;
733 return 0;
734 }
735
736 static int snd_ac97_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
737 {
738 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
739
740 mutex_lock(&ac97->reg_mutex);
741 ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff;
742 ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff;
743 ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff;
744 ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff;
745 mutex_unlock(&ac97->reg_mutex);
746 return 0;
747 }
748
749 static int snd_ac97_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
750 {
751 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
752 unsigned int new = 0;
753 unsigned short val = 0;
754 int change;
755
756 new = val = ucontrol->value.iec958.status[0] & (IEC958_AES0_PROFESSIONAL|IEC958_AES0_NONAUDIO);
757 if (ucontrol->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL) {
758 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_PRO_FS|IEC958_AES0_PRO_EMPHASIS_5015);
759 switch (new & IEC958_AES0_PRO_FS) {
760 case IEC958_AES0_PRO_FS_44100: val |= 0<<12; break;
761 case IEC958_AES0_PRO_FS_48000: val |= 2<<12; break;
762 case IEC958_AES0_PRO_FS_32000: val |= 3<<12; break;
763 default: val |= 1<<12; break;
764 }
765 if ((new & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
766 val |= 1<<3;
767 } else {
768 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT);
769 new |= ((ucontrol->value.iec958.status[1] & (IEC958_AES1_CON_CATEGORY|IEC958_AES1_CON_ORIGINAL)) << 8);
770 new |= ((ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) << 24);
771 if ((new & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
772 val |= 1<<3;
773 if (!(new & IEC958_AES0_CON_NOT_COPYRIGHT))
774 val |= 1<<2;
775 val |= ((new >> 8) & 0xff) << 4; // category + original
776 switch ((new >> 24) & 0xff) {
777 case IEC958_AES3_CON_FS_44100: val |= 0<<12; break;
778 case IEC958_AES3_CON_FS_48000: val |= 2<<12; break;
779 case IEC958_AES3_CON_FS_32000: val |= 3<<12; break;
780 default: val |= 1<<12; break;
781 }
782 }
783
784 mutex_lock(&ac97->reg_mutex);
785 change = ac97->spdif_status != new;
786 ac97->spdif_status = new;
787
788 if (ac97->flags & AC97_CS_SPDIF) {
789 int x = (val >> 12) & 0x03;
790 switch (x) {
791 case 0: x = 1; break; // 44.1
792 case 2: x = 0; break; // 48.0
793 default: x = 0; break; // illegal.
794 }
795 change |= snd_ac97_update_bits_nolock(ac97, AC97_CSR_SPDIF, 0x3fff, ((val & 0xcfff) | (x << 12)));
796 } else if (ac97->flags & AC97_CX_SPDIF) {
797 int v;
798 v = new & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT) ? 0 : AC97_CXR_COPYRGT;
799 v |= new & IEC958_AES0_NONAUDIO ? AC97_CXR_SPDIF_AC3 : AC97_CXR_SPDIF_PCM;
800 change |= snd_ac97_update_bits_nolock(ac97, AC97_CXR_AUDIO_MISC,
801 AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT,
802 v);
803 } else if (ac97->id == AC97_ID_YMF743) {
804 change |= snd_ac97_update_bits_nolock(ac97,
805 AC97_YMF7X3_DIT_CTRL,
806 0xff38,
807 ((val << 4) & 0xff00) |
808 ((val << 2) & 0x0038));
809 } else {
810 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
811 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
812
813 change |= snd_ac97_update_bits_nolock(ac97, AC97_SPDIF, 0x3fff, val);
814 if (extst & AC97_EA_SPDIF) {
815 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
816 }
817 }
818 mutex_unlock(&ac97->reg_mutex);
819
820 return change;
821 }
822
823 static int snd_ac97_put_spsa(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
824 {
825 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
826 int reg = kcontrol->private_value & 0xff;
827 int shift = (kcontrol->private_value >> 8) & 0xff;
828 int mask = (kcontrol->private_value >> 16) & 0xff;
829 // int invert = (kcontrol->private_value >> 24) & 0xff;
830 unsigned short value, old, new;
831 int change;
832
833 value = (ucontrol->value.integer.value[0] & mask);
834
835 mutex_lock(&ac97->reg_mutex);
836 mask <<= shift;
837 value <<= shift;
838 old = snd_ac97_read_cache(ac97, reg);
839 new = (old & ~mask) | value;
840 change = old != new;
841
842 if (change) {
843 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
844 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
845 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
846 if (extst & AC97_EA_SPDIF)
847 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
848 }
849 mutex_unlock(&ac97->reg_mutex);
850 return change;
851 }
852
853 static const struct snd_kcontrol_new snd_ac97_controls_spdif[5] = {
854 {
855 .access = SNDRV_CTL_ELEM_ACCESS_READ,
856 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
857 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
858 .info = snd_ac97_spdif_mask_info,
859 .get = snd_ac97_spdif_cmask_get,
860 },
861 {
862 .access = SNDRV_CTL_ELEM_ACCESS_READ,
863 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
864 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
865 .info = snd_ac97_spdif_mask_info,
866 .get = snd_ac97_spdif_pmask_get,
867 },
868 {
869 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
870 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
871 .info = snd_ac97_spdif_mask_info,
872 .get = snd_ac97_spdif_default_get,
873 .put = snd_ac97_spdif_default_put,
874 },
875
876 AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),AC97_EXTENDED_STATUS, 2, 1, 0),
877 {
878 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
879 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA",
880 .info = snd_ac97_info_volsw,
881 .get = snd_ac97_get_volsw,
882 .put = snd_ac97_put_spsa,
883 .private_value = AC97_SINGLE_VALUE(AC97_EXTENDED_STATUS, 4, 3, 0)
884 },
885 };
886
887 #define AD18XX_PCM_BITS(xname, codec, lshift, rshift, mask) \
888 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_bits, \
889 .get = snd_ac97_ad18xx_pcm_get_bits, .put = snd_ac97_ad18xx_pcm_put_bits, \
890 .private_value = (codec) | ((lshift) << 8) | ((rshift) << 12) | ((mask) << 16) }
891
892 static int snd_ac97_ad18xx_pcm_info_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
893 {
894 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
895 int mask = (kcontrol->private_value >> 16) & 0x0f;
896 int lshift = (kcontrol->private_value >> 8) & 0x0f;
897 int rshift = (kcontrol->private_value >> 12) & 0x0f;
898
899 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
900 if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
901 uinfo->count = 2;
902 else
903 uinfo->count = 1;
904 uinfo->value.integer.min = 0;
905 uinfo->value.integer.max = mask;
906 return 0;
907 }
908
909 static int snd_ac97_ad18xx_pcm_get_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
910 {
911 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
912 int codec = kcontrol->private_value & 3;
913 int lshift = (kcontrol->private_value >> 8) & 0x0f;
914 int rshift = (kcontrol->private_value >> 12) & 0x0f;
915 int mask = (kcontrol->private_value >> 16) & 0xff;
916
917 ucontrol->value.integer.value[0] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> lshift) & mask);
918 if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
919 ucontrol->value.integer.value[1] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> rshift) & mask);
920 return 0;
921 }
922
923 static int snd_ac97_ad18xx_pcm_put_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
924 {
925 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
926 int codec = kcontrol->private_value & 3;
927 int lshift = (kcontrol->private_value >> 8) & 0x0f;
928 int rshift = (kcontrol->private_value >> 12) & 0x0f;
929 int mask = (kcontrol->private_value >> 16) & 0xff;
930 unsigned short val, valmask;
931
932 val = (mask - (ucontrol->value.integer.value[0] & mask)) << lshift;
933 valmask = mask << lshift;
934 if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) {
935 val |= (mask - (ucontrol->value.integer.value[1] & mask)) << rshift;
936 valmask |= mask << rshift;
937 }
938 return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, valmask, val);
939 }
940
941 #define AD18XX_PCM_VOLUME(xname, codec) \
942 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_volume, \
943 .get = snd_ac97_ad18xx_pcm_get_volume, .put = snd_ac97_ad18xx_pcm_put_volume, \
944 .private_value = codec }
945
946 static int snd_ac97_ad18xx_pcm_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
947 {
948 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
949 uinfo->count = 2;
950 uinfo->value.integer.min = 0;
951 uinfo->value.integer.max = 31;
952 return 0;
953 }
954
955 static int snd_ac97_ad18xx_pcm_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
956 {
957 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
958 int codec = kcontrol->private_value & 3;
959
960 mutex_lock(&ac97->page_mutex);
961 ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
962 ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
963 mutex_unlock(&ac97->page_mutex);
964 return 0;
965 }
966
967 static int snd_ac97_ad18xx_pcm_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
968 {
969 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
970 int codec = kcontrol->private_value & 3;
971 unsigned short val1, val2;
972
973 val1 = 31 - (ucontrol->value.integer.value[0] & 31);
974 val2 = 31 - (ucontrol->value.integer.value[1] & 31);
975 return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, 0x1f1f, (val1 << 8) | val2);
976 }
977
978 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_pcm[2] = {
979 AD18XX_PCM_BITS("PCM Playback Switch", 0, 15, 7, 1),
980 AD18XX_PCM_VOLUME("PCM Playback Volume", 0)
981 };
982
983 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_surround[2] = {
984 AD18XX_PCM_BITS("Surround Playback Switch", 1, 15, 7, 1),
985 AD18XX_PCM_VOLUME("Surround Playback Volume", 1)
986 };
987
988 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_center[2] = {
989 AD18XX_PCM_BITS("Center Playback Switch", 2, 15, 15, 1),
990 AD18XX_PCM_BITS("Center Playback Volume", 2, 8, 8, 31)
991 };
992
993 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_lfe[2] = {
994 AD18XX_PCM_BITS("LFE Playback Switch", 2, 7, 7, 1),
995 AD18XX_PCM_BITS("LFE Playback Volume", 2, 0, 0, 31)
996 };
997
998 /*
999 *
1000 */
1001
1002 static void snd_ac97_powerdown(struct snd_ac97 *ac97);
1003
1004 static int snd_ac97_bus_free(struct snd_ac97_bus *bus)
1005 {
1006 if (bus) {
1007 snd_ac97_bus_proc_done(bus);
1008 kfree(bus->pcms);
1009 if (bus->private_free)
1010 bus->private_free(bus);
1011 kfree(bus);
1012 }
1013 return 0;
1014 }
1015
1016 static int snd_ac97_bus_dev_free(struct snd_device *device)
1017 {
1018 struct snd_ac97_bus *bus = device->device_data;
1019 return snd_ac97_bus_free(bus);
1020 }
1021
1022 static int snd_ac97_free(struct snd_ac97 *ac97)
1023 {
1024 if (ac97) {
1025 #ifdef CONFIG_SND_AC97_POWER_SAVE
1026 cancel_delayed_work_sync(&ac97->power_work);
1027 #endif
1028 snd_ac97_proc_done(ac97);
1029 if (ac97->bus)
1030 ac97->bus->codec[ac97->num] = NULL;
1031 if (ac97->private_free)
1032 ac97->private_free(ac97);
1033 kfree(ac97);
1034 }
1035 return 0;
1036 }
1037
1038 static int snd_ac97_dev_free(struct snd_device *device)
1039 {
1040 struct snd_ac97 *ac97 = device->device_data;
1041 snd_ac97_powerdown(ac97); /* for avoiding click noises during shut down */
1042 return snd_ac97_free(ac97);
1043 }
1044
1045 static int snd_ac97_try_volume_mix(struct snd_ac97 * ac97, int reg)
1046 {
1047 unsigned short val, mask = AC97_MUTE_MASK_MONO;
1048
1049 if (! snd_ac97_valid_reg(ac97, reg))
1050 return 0;
1051
1052 switch (reg) {
1053 case AC97_MASTER_TONE:
1054 return ac97->caps & AC97_BC_BASS_TREBLE ? 1 : 0;
1055 case AC97_HEADPHONE:
1056 return ac97->caps & AC97_BC_HEADPHONE ? 1 : 0;
1057 case AC97_REC_GAIN_MIC:
1058 return ac97->caps & AC97_BC_DEDICATED_MIC ? 1 : 0;
1059 case AC97_3D_CONTROL:
1060 if (ac97->caps & AC97_BC_3D_TECH_ID_MASK) {
1061 val = snd_ac97_read(ac97, reg);
1062 /* if nonzero - fixed and we can't set it */
1063 return val == 0;
1064 }
1065 return 0;
1066 case AC97_CENTER_LFE_MASTER: /* center */
1067 if ((ac97->ext_id & AC97_EI_CDAC) == 0)
1068 return 0;
1069 break;
1070 case AC97_CENTER_LFE_MASTER+1: /* lfe */
1071 if ((ac97->ext_id & AC97_EI_LDAC) == 0)
1072 return 0;
1073 reg = AC97_CENTER_LFE_MASTER;
1074 mask = 0x0080;
1075 break;
1076 case AC97_SURROUND_MASTER:
1077 if ((ac97->ext_id & AC97_EI_SDAC) == 0)
1078 return 0;
1079 break;
1080 }
1081
1082 val = snd_ac97_read(ac97, reg);
1083 if (!(val & mask)) {
1084 /* nothing seems to be here - mute flag is not set */
1085 /* try another test */
1086 snd_ac97_write_cache(ac97, reg, val | mask);
1087 val = snd_ac97_read(ac97, reg);
1088 val = snd_ac97_read(ac97, reg);
1089 if (!(val & mask))
1090 return 0; /* nothing here */
1091 }
1092 return 1; /* success, useable */
1093 }
1094
1095 static void check_volume_resolution(struct snd_ac97 *ac97, int reg, unsigned char *lo_max, unsigned char *hi_max)
1096 {
1097 unsigned short cbit[3] = { 0x20, 0x10, 0x01 };
1098 unsigned char max[3] = { 63, 31, 15 };
1099 int i;
1100
1101 /* first look up the static resolution table */
1102 if (ac97->res_table) {
1103 const struct snd_ac97_res_table *tbl;
1104 for (tbl = ac97->res_table; tbl->reg; tbl++) {
1105 if (tbl->reg == reg) {
1106 *lo_max = tbl->bits & 0xff;
1107 *hi_max = (tbl->bits >> 8) & 0xff;
1108 return;
1109 }
1110 }
1111 }
1112
1113 *lo_max = *hi_max = 0;
1114 for (i = 0 ; i < ARRAY_SIZE(cbit); i++) {
1115 unsigned short val;
1116 snd_ac97_write(
1117 ac97, reg,
1118 AC97_MUTE_MASK_STEREO | cbit[i] | (cbit[i] << 8)
1119 );
1120 /* Do the read twice due to buffers on some ac97 codecs.
1121 * e.g. The STAC9704 returns exactly what you wrote to the register
1122 * if you read it immediately. This causes the detect routine to fail.
1123 */
1124 val = snd_ac97_read(ac97, reg);
1125 val = snd_ac97_read(ac97, reg);
1126 if (! *lo_max && (val & 0x7f) == cbit[i])
1127 *lo_max = max[i];
1128 if (! *hi_max && ((val >> 8) & 0x7f) == cbit[i])
1129 *hi_max = max[i];
1130 if (*lo_max && *hi_max)
1131 break;
1132 }
1133 }
1134
1135 static int snd_ac97_try_bit(struct snd_ac97 * ac97, int reg, int bit)
1136 {
1137 unsigned short mask, val, orig, res;
1138
1139 mask = 1 << bit;
1140 orig = snd_ac97_read(ac97, reg);
1141 val = orig ^ mask;
1142 snd_ac97_write(ac97, reg, val);
1143 res = snd_ac97_read(ac97, reg);
1144 snd_ac97_write_cache(ac97, reg, orig);
1145 return res == val;
1146 }
1147
1148 /* check the volume resolution of center/lfe */
1149 static void snd_ac97_change_volume_params2(struct snd_ac97 * ac97, int reg, int shift, unsigned char *max)
1150 {
1151 unsigned short val, val1;
1152
1153 *max = 63;
1154 val = AC97_MUTE_MASK_STEREO | (0x20 << shift);
1155 snd_ac97_write(ac97, reg, val);
1156 val1 = snd_ac97_read(ac97, reg);
1157 if (val != val1) {
1158 *max = 31;
1159 }
1160 /* reset volume to zero */
1161 snd_ac97_write_cache(ac97, reg, AC97_MUTE_MASK_STEREO);
1162 }
1163
1164 static inline int printable(unsigned int x)
1165 {
1166 x &= 0xff;
1167 if (x < ' ' || x >= 0x71) {
1168 if (x <= 0x89)
1169 return x - 0x71 + 'A';
1170 return '?';
1171 }
1172 return x;
1173 }
1174
1175 static struct snd_kcontrol *snd_ac97_cnew(const struct snd_kcontrol_new *_template,
1176 struct snd_ac97 * ac97)
1177 {
1178 struct snd_kcontrol_new template;
1179 memcpy(&template, _template, sizeof(template));
1180 template.index = ac97->num;
1181 return snd_ctl_new1(&template, ac97);
1182 }
1183
1184 /*
1185 * create mute switch(es) for normal stereo controls
1186 */
1187 static int snd_ac97_cmute_new_stereo(struct snd_card *card, char *name, int reg,
1188 int check_stereo, int check_amix,
1189 struct snd_ac97 *ac97)
1190 {
1191 struct snd_kcontrol *kctl;
1192 int err;
1193 unsigned short val, val1, mute_mask;
1194
1195 if (! snd_ac97_valid_reg(ac97, reg))
1196 return 0;
1197
1198 mute_mask = AC97_MUTE_MASK_MONO;
1199 val = snd_ac97_read(ac97, reg);
1200 if (check_stereo || (ac97->flags & AC97_STEREO_MUTES)) {
1201 /* check whether both mute bits work */
1202 val1 = val | AC97_MUTE_MASK_STEREO;
1203 snd_ac97_write(ac97, reg, val1);
1204 if (val1 == snd_ac97_read(ac97, reg))
1205 mute_mask = AC97_MUTE_MASK_STEREO;
1206 }
1207 if (mute_mask == AC97_MUTE_MASK_STEREO) {
1208 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 15, 7, 1, 1);
1209 if (check_amix)
1210 tmp.private_value |= (1 << 30);
1211 tmp.index = ac97->num;
1212 kctl = snd_ctl_new1(&tmp, ac97);
1213 } else {
1214 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 15, 1, 1);
1215 if (check_amix)
1216 tmp.private_value |= (1 << 30);
1217 tmp.index = ac97->num;
1218 kctl = snd_ctl_new1(&tmp, ac97);
1219 }
1220 err = snd_ctl_add(card, kctl);
1221 if (err < 0)
1222 return err;
1223 /* mute as default */
1224 snd_ac97_write_cache(ac97, reg, val | mute_mask);
1225 return 0;
1226 }
1227
1228 /*
1229 * set dB information
1230 */
1231 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
1232 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
1233 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
1234 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
1235 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
1236
1237 static const unsigned int *find_db_scale(unsigned int maxval)
1238 {
1239 switch (maxval) {
1240 case 0x0f: return db_scale_4bit;
1241 case 0x1f: return db_scale_5bit;
1242 case 0x3f: return db_scale_6bit;
1243 }
1244 return NULL;
1245 }
1246
1247 static void set_tlv_db_scale(struct snd_kcontrol *kctl, const unsigned int *tlv)
1248 {
1249 kctl->tlv.p = tlv;
1250 if (tlv)
1251 kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1252 }
1253
1254 /*
1255 * create a volume for normal stereo/mono controls
1256 */
1257 static int snd_ac97_cvol_new(struct snd_card *card, char *name, int reg, unsigned int lo_max,
1258 unsigned int hi_max, struct snd_ac97 *ac97)
1259 {
1260 int err;
1261 struct snd_kcontrol *kctl;
1262
1263 if (! snd_ac97_valid_reg(ac97, reg))
1264 return 0;
1265 if (hi_max) {
1266 /* invert */
1267 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 8, 0, lo_max, 1);
1268 tmp.index = ac97->num;
1269 kctl = snd_ctl_new1(&tmp, ac97);
1270 } else {
1271 /* invert */
1272 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 0, lo_max, 1);
1273 tmp.index = ac97->num;
1274 kctl = snd_ctl_new1(&tmp, ac97);
1275 }
1276 if (!kctl)
1277 return -ENOMEM;
1278 if (reg >= AC97_PHONE && reg <= AC97_PCM)
1279 set_tlv_db_scale(kctl, db_scale_5bit_12db_max);
1280 else
1281 set_tlv_db_scale(kctl, find_db_scale(lo_max));
1282 err = snd_ctl_add(card, kctl);
1283 if (err < 0)
1284 return err;
1285 snd_ac97_write_cache(
1286 ac97, reg,
1287 (snd_ac97_read(ac97, reg) & AC97_MUTE_MASK_STEREO)
1288 | lo_max | (hi_max << 8)
1289 );
1290 return 0;
1291 }
1292
1293 /*
1294 * create a mute-switch and a volume for normal stereo/mono controls
1295 */
1296 static int snd_ac97_cmix_new_stereo(struct snd_card *card, const char *pfx,
1297 int reg, int check_stereo, int check_amix,
1298 struct snd_ac97 *ac97)
1299 {
1300 int err;
1301 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
1302 unsigned char lo_max, hi_max;
1303
1304 if (! snd_ac97_valid_reg(ac97, reg))
1305 return 0;
1306
1307 if (snd_ac97_try_bit(ac97, reg, 15)) {
1308 sprintf(name, "%s Switch", pfx);
1309 if ((err = snd_ac97_cmute_new_stereo(card, name, reg,
1310 check_stereo, check_amix,
1311 ac97)) < 0)
1312 return err;
1313 }
1314 check_volume_resolution(ac97, reg, &lo_max, &hi_max);
1315 if (lo_max) {
1316 sprintf(name, "%s Volume", pfx);
1317 if ((err = snd_ac97_cvol_new(card, name, reg, lo_max, hi_max, ac97)) < 0)
1318 return err;
1319 }
1320 return 0;
1321 }
1322
1323 #define snd_ac97_cmix_new(card, pfx, reg, acheck, ac97) \
1324 snd_ac97_cmix_new_stereo(card, pfx, reg, 0, acheck, ac97)
1325 #define snd_ac97_cmute_new(card, name, reg, acheck, ac97) \
1326 snd_ac97_cmute_new_stereo(card, name, reg, 0, acheck, ac97)
1327
1328 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97);
1329
1330 static int snd_ac97_mixer_build(struct snd_ac97 * ac97)
1331 {
1332 struct snd_card *card = ac97->bus->card;
1333 struct snd_kcontrol *kctl;
1334 int err;
1335 unsigned int idx;
1336 unsigned char max;
1337
1338 /* build master controls */
1339 /* AD claims to remove this control from AD1887, although spec v2.2 does not allow this */
1340 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER)) {
1341 if (ac97->flags & AC97_HAS_NO_MASTER_VOL)
1342 err = snd_ac97_cmute_new(card, "Master Playback Switch",
1343 AC97_MASTER, 0, ac97);
1344 else
1345 err = snd_ac97_cmix_new(card, "Master Playback",
1346 AC97_MASTER, 0, ac97);
1347 if (err < 0)
1348 return err;
1349 }
1350
1351 ac97->regs[AC97_CENTER_LFE_MASTER] = AC97_MUTE_MASK_STEREO;
1352
1353 /* build center controls */
1354 if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER))
1355 && !(ac97->flags & AC97_AD_MULTI)) {
1356 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_center[0], ac97))) < 0)
1357 return err;
1358 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_center[1], ac97))) < 0)
1359 return err;
1360 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 0, &max);
1361 kctl->private_value &= ~(0xff << 16);
1362 kctl->private_value |= (int)max << 16;
1363 set_tlv_db_scale(kctl, find_db_scale(max));
1364 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max);
1365 }
1366
1367 /* build LFE controls */
1368 if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER+1))
1369 && !(ac97->flags & AC97_AD_MULTI)) {
1370 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_lfe[0], ac97))) < 0)
1371 return err;
1372 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_lfe[1], ac97))) < 0)
1373 return err;
1374 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 8, &max);
1375 kctl->private_value &= ~(0xff << 16);
1376 kctl->private_value |= (int)max << 16;
1377 set_tlv_db_scale(kctl, find_db_scale(max));
1378 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max << 8);
1379 }
1380
1381 /* build surround controls */
1382 if ((snd_ac97_try_volume_mix(ac97, AC97_SURROUND_MASTER))
1383 && !(ac97->flags & AC97_AD_MULTI)) {
1384 /* Surround Master (0x38) is with stereo mutes */
1385 if ((err = snd_ac97_cmix_new_stereo(card, "Surround Playback",
1386 AC97_SURROUND_MASTER, 1, 0,
1387 ac97)) < 0)
1388 return err;
1389 }
1390
1391 /* build headphone controls */
1392 if (snd_ac97_try_volume_mix(ac97, AC97_HEADPHONE)) {
1393 if ((err = snd_ac97_cmix_new(card, "Headphone Playback",
1394 AC97_HEADPHONE, 0, ac97)) < 0)
1395 return err;
1396 }
1397
1398 /* build master mono controls */
1399 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_MONO)) {
1400 if ((err = snd_ac97_cmix_new(card, "Master Mono Playback",
1401 AC97_MASTER_MONO, 0, ac97)) < 0)
1402 return err;
1403 }
1404
1405 /* build master tone controls */
1406 if (!(ac97->flags & AC97_HAS_NO_TONE)) {
1407 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_TONE)) {
1408 for (idx = 0; idx < 2; idx++) {
1409 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97))) < 0)
1410 return err;
1411 if (ac97->id == AC97_ID_YMF743 ||
1412 ac97->id == AC97_ID_YMF753) {
1413 kctl->private_value &= ~(0xff << 16);
1414 kctl->private_value |= 7 << 16;
1415 }
1416 }
1417 snd_ac97_write_cache(ac97, AC97_MASTER_TONE, 0x0f0f);
1418 }
1419 }
1420
1421 /* build Beep controls */
1422 if (!(ac97->flags & AC97_HAS_NO_PC_BEEP) &&
1423 ((ac97->flags & AC97_HAS_PC_BEEP) ||
1424 snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP))) {
1425 for (idx = 0; idx < 2; idx++)
1426 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_pc_beep[idx], ac97))) < 0)
1427 return err;
1428 set_tlv_db_scale(kctl, db_scale_4bit);
1429 snd_ac97_write_cache(
1430 ac97,
1431 AC97_PC_BEEP,
1432 (snd_ac97_read(ac97, AC97_PC_BEEP)
1433 | AC97_MUTE_MASK_MONO | 0x001e)
1434 );
1435 }
1436
1437 /* build Phone controls */
1438 if (!(ac97->flags & AC97_HAS_NO_PHONE)) {
1439 if (snd_ac97_try_volume_mix(ac97, AC97_PHONE)) {
1440 if ((err = snd_ac97_cmix_new(card, "Phone Playback",
1441 AC97_PHONE, 1, ac97)) < 0)
1442 return err;
1443 }
1444 }
1445
1446 /* build MIC controls */
1447 if (!(ac97->flags & AC97_HAS_NO_MIC)) {
1448 if (snd_ac97_try_volume_mix(ac97, AC97_MIC)) {
1449 if ((err = snd_ac97_cmix_new(card, "Mic Playback",
1450 AC97_MIC, 1, ac97)) < 0)
1451 return err;
1452 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_boost, ac97))) < 0)
1453 return err;
1454 }
1455 }
1456
1457 /* build Line controls */
1458 if (snd_ac97_try_volume_mix(ac97, AC97_LINE)) {
1459 if ((err = snd_ac97_cmix_new(card, "Line Playback",
1460 AC97_LINE, 1, ac97)) < 0)
1461 return err;
1462 }
1463
1464 /* build CD controls */
1465 if (!(ac97->flags & AC97_HAS_NO_CD)) {
1466 if (snd_ac97_try_volume_mix(ac97, AC97_CD)) {
1467 if ((err = snd_ac97_cmix_new(card, "CD Playback",
1468 AC97_CD, 1, ac97)) < 0)
1469 return err;
1470 }
1471 }
1472
1473 /* build Video controls */
1474 if (!(ac97->flags & AC97_HAS_NO_VIDEO)) {
1475 if (snd_ac97_try_volume_mix(ac97, AC97_VIDEO)) {
1476 if ((err = snd_ac97_cmix_new(card, "Video Playback",
1477 AC97_VIDEO, 1, ac97)) < 0)
1478 return err;
1479 }
1480 }
1481
1482 /* build Aux controls */
1483 if (!(ac97->flags & AC97_HAS_NO_AUX)) {
1484 if (snd_ac97_try_volume_mix(ac97, AC97_AUX)) {
1485 if ((err = snd_ac97_cmix_new(card, "Aux Playback",
1486 AC97_AUX, 1, ac97)) < 0)
1487 return err;
1488 }
1489 }
1490
1491 /* build PCM controls */
1492 if (ac97->flags & AC97_AD_MULTI) {
1493 unsigned short init_val;
1494 if (ac97->flags & AC97_STEREO_MUTES)
1495 init_val = 0x9f9f;
1496 else
1497 init_val = 0x9f1f;
1498 for (idx = 0; idx < 2; idx++)
1499 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_pcm[idx], ac97))) < 0)
1500 return err;
1501 set_tlv_db_scale(kctl, db_scale_5bit);
1502 ac97->spec.ad18xx.pcmreg[0] = init_val;
1503 if (ac97->scaps & AC97_SCAP_SURROUND_DAC) {
1504 for (idx = 0; idx < 2; idx++)
1505 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_surround[idx], ac97))) < 0)
1506 return err;
1507 set_tlv_db_scale(kctl, db_scale_5bit);
1508 ac97->spec.ad18xx.pcmreg[1] = init_val;
1509 }
1510 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) {
1511 for (idx = 0; idx < 2; idx++)
1512 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_center[idx], ac97))) < 0)
1513 return err;
1514 set_tlv_db_scale(kctl, db_scale_5bit);
1515 for (idx = 0; idx < 2; idx++)
1516 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_lfe[idx], ac97))) < 0)
1517 return err;
1518 set_tlv_db_scale(kctl, db_scale_5bit);
1519 ac97->spec.ad18xx.pcmreg[2] = init_val;
1520 }
1521 snd_ac97_write_cache(ac97, AC97_PCM, init_val);
1522 } else {
1523 if (!(ac97->flags & AC97_HAS_NO_STD_PCM)) {
1524 if (ac97->flags & AC97_HAS_NO_PCM_VOL)
1525 err = snd_ac97_cmute_new(card,
1526 "PCM Playback Switch",
1527 AC97_PCM, 0, ac97);
1528 else
1529 err = snd_ac97_cmix_new(card, "PCM Playback",
1530 AC97_PCM, 0, ac97);
1531 if (err < 0)
1532 return err;
1533 }
1534 }
1535
1536 /* build Capture controls */
1537 if (!(ac97->flags & AC97_HAS_NO_REC_GAIN)) {
1538 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_src, ac97))) < 0)
1539 return err;
1540 if (snd_ac97_try_bit(ac97, AC97_REC_GAIN, 15)) {
1541 err = snd_ac97_cmute_new(card, "Capture Switch",
1542 AC97_REC_GAIN, 0, ac97);
1543 if (err < 0)
1544 return err;
1545 }
1546 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_control_capture_vol, ac97))) < 0)
1547 return err;
1548 set_tlv_db_scale(kctl, db_scale_rec_gain);
1549 snd_ac97_write_cache(ac97, AC97_REC_SEL, 0x0000);
1550 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x0000);
1551 }
1552 /* build MIC Capture controls */
1553 if (snd_ac97_try_volume_mix(ac97, AC97_REC_GAIN_MIC)) {
1554 for (idx = 0; idx < 2; idx++)
1555 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_mic_capture[idx], ac97))) < 0)
1556 return err;
1557 set_tlv_db_scale(kctl, db_scale_rec_gain);
1558 snd_ac97_write_cache(ac97, AC97_REC_GAIN_MIC, 0x0000);
1559 }
1560
1561 /* build PCM out path & mute control */
1562 if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 15)) {
1563 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_PCM_OUT], ac97))) < 0)
1564 return err;
1565 }
1566
1567 /* build Simulated Stereo Enhancement control */
1568 if (ac97->caps & AC97_BC_SIM_STEREO) {
1569 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_STEREO_ENHANCEMENT], ac97))) < 0)
1570 return err;
1571 }
1572
1573 /* build 3D Stereo Enhancement control */
1574 if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 13)) {
1575 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_3D], ac97))) < 0)
1576 return err;
1577 }
1578
1579 /* build Loudness control */
1580 if (ac97->caps & AC97_BC_LOUDNESS) {
1581 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOUDNESS], ac97))) < 0)
1582 return err;
1583 }
1584
1585 /* build Mono output select control */
1586 if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 9)) {
1587 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MONO], ac97))) < 0)
1588 return err;
1589 }
1590
1591 /* build Mic select control */
1592 if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 8)) {
1593 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MIC], ac97))) < 0)
1594 return err;
1595 }
1596
1597 /* build ADC/DAC loopback control */
1598 if (enable_loopback && snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 7)) {
1599 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOOPBACK], ac97))) < 0)
1600 return err;
1601 }
1602
1603 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, ~AC97_GP_DRSS_MASK, 0x0000);
1604
1605 /* build 3D controls */
1606 if (ac97->build_ops->build_3d) {
1607 ac97->build_ops->build_3d(ac97);
1608 } else {
1609 if (snd_ac97_try_volume_mix(ac97, AC97_3D_CONTROL)) {
1610 unsigned short val;
1611 val = 0x0707;
1612 snd_ac97_write(ac97, AC97_3D_CONTROL, val);
1613 val = snd_ac97_read(ac97, AC97_3D_CONTROL);
1614 val = val == 0x0606;
1615 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
1616 return err;
1617 if (val)
1618 kctl->private_value = AC97_3D_CONTROL | (9 << 8) | (7 << 16);
1619 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[1], ac97))) < 0)
1620 return err;
1621 if (val)
1622 kctl->private_value = AC97_3D_CONTROL | (1 << 8) | (7 << 16);
1623 snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
1624 }
1625 }
1626
1627 /* build S/PDIF controls */
1628
1629 /* Hack for ASUS P5P800-VM, which does not indicate S/PDIF capability */
1630 if (ac97->subsystem_vendor == 0x1043 &&
1631 ac97->subsystem_device == 0x810f)
1632 ac97->ext_id |= AC97_EI_SPDIF;
1633
1634 if ((ac97->ext_id & AC97_EI_SPDIF) && !(ac97->scaps & AC97_SCAP_NO_SPDIF)) {
1635 if (ac97->build_ops->build_spdif) {
1636 if ((err = ac97->build_ops->build_spdif(ac97)) < 0)
1637 return err;
1638 } else {
1639 for (idx = 0; idx < 5; idx++)
1640 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_spdif[idx], ac97))) < 0)
1641 return err;
1642 if (ac97->build_ops->build_post_spdif) {
1643 if ((err = ac97->build_ops->build_post_spdif(ac97)) < 0)
1644 return err;
1645 }
1646 /* set default PCM S/PDIF params */
1647 /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
1648 snd_ac97_write_cache(ac97, AC97_SPDIF, 0x2a20);
1649 ac97->rates[AC97_RATES_SPDIF] = snd_ac97_determine_spdif_rates(ac97);
1650 }
1651 ac97->spdif_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
1652 }
1653
1654 /* build chip specific controls */
1655 if (ac97->build_ops->build_specific)
1656 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1657 return err;
1658
1659 if (snd_ac97_try_bit(ac97, AC97_POWERDOWN, 15)) {
1660 kctl = snd_ac97_cnew(&snd_ac97_control_eapd, ac97);
1661 if (! kctl)
1662 return -ENOMEM;
1663 if (ac97->scaps & AC97_SCAP_INV_EAPD)
1664 set_inv_eapd(ac97, kctl);
1665 if ((err = snd_ctl_add(card, kctl)) < 0)
1666 return err;
1667 }
1668
1669 return 0;
1670 }
1671
1672 static int snd_ac97_modem_build(struct snd_card *card, struct snd_ac97 * ac97)
1673 {
1674 int err, idx;
1675
1676 /*
1677 ac97_dbg(ac97, "AC97_GPIO_CFG = %x\n",
1678 snd_ac97_read(ac97,AC97_GPIO_CFG));
1679 */
1680 snd_ac97_write(ac97, AC97_GPIO_CFG, 0xffff & ~(AC97_GPIO_LINE1_OH));
1681 snd_ac97_write(ac97, AC97_GPIO_POLARITY, 0xffff & ~(AC97_GPIO_LINE1_OH));
1682 snd_ac97_write(ac97, AC97_GPIO_STICKY, 0xffff);
1683 snd_ac97_write(ac97, AC97_GPIO_WAKEUP, 0x0);
1684 snd_ac97_write(ac97, AC97_MISC_AFE, 0x0);
1685
1686 /* build modem switches */
1687 for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_modem_switches); idx++)
1688 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ac97_controls_modem_switches[idx], ac97))) < 0)
1689 return err;
1690
1691 /* build chip specific controls */
1692 if (ac97->build_ops->build_specific)
1693 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1694 return err;
1695
1696 return 0;
1697 }
1698
1699 static int snd_ac97_test_rate(struct snd_ac97 *ac97, int reg, int shadow_reg, int rate)
1700 {
1701 unsigned short val;
1702 unsigned int tmp;
1703
1704 tmp = ((unsigned int)rate * ac97->bus->clock) / 48000;
1705 snd_ac97_write_cache(ac97, reg, tmp & 0xffff);
1706 if (shadow_reg)
1707 snd_ac97_write_cache(ac97, shadow_reg, tmp & 0xffff);
1708 val = snd_ac97_read(ac97, reg);
1709 return val == (tmp & 0xffff);
1710 }
1711
1712 static void snd_ac97_determine_rates(struct snd_ac97 *ac97, int reg, int shadow_reg, unsigned int *r_result)
1713 {
1714 unsigned int result = 0;
1715 unsigned short saved;
1716
1717 if (ac97->bus->no_vra) {
1718 *r_result = SNDRV_PCM_RATE_48000;
1719 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1720 reg == AC97_PCM_FRONT_DAC_RATE)
1721 *r_result |= SNDRV_PCM_RATE_96000;
1722 return;
1723 }
1724
1725 saved = snd_ac97_read(ac97, reg);
1726 if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE)
1727 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1728 AC97_EA_DRA, 0);
1729 /* test a non-standard rate */
1730 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11000))
1731 result |= SNDRV_PCM_RATE_CONTINUOUS;
1732 /* let's try to obtain standard rates */
1733 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 8000))
1734 result |= SNDRV_PCM_RATE_8000;
1735 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11025))
1736 result |= SNDRV_PCM_RATE_11025;
1737 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 16000))
1738 result |= SNDRV_PCM_RATE_16000;
1739 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 22050))
1740 result |= SNDRV_PCM_RATE_22050;
1741 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 32000))
1742 result |= SNDRV_PCM_RATE_32000;
1743 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 44100))
1744 result |= SNDRV_PCM_RATE_44100;
1745 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 48000))
1746 result |= SNDRV_PCM_RATE_48000;
1747 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1748 reg == AC97_PCM_FRONT_DAC_RATE) {
1749 /* test standard double rates */
1750 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1751 AC97_EA_DRA, AC97_EA_DRA);
1752 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 64000 / 2))
1753 result |= SNDRV_PCM_RATE_64000;
1754 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 88200 / 2))
1755 result |= SNDRV_PCM_RATE_88200;
1756 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 96000 / 2))
1757 result |= SNDRV_PCM_RATE_96000;
1758 /* some codecs don't support variable double rates */
1759 if (!snd_ac97_test_rate(ac97, reg, shadow_reg, 76100 / 2))
1760 result &= ~SNDRV_PCM_RATE_CONTINUOUS;
1761 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1762 AC97_EA_DRA, 0);
1763 }
1764 /* restore the default value */
1765 snd_ac97_write_cache(ac97, reg, saved);
1766 if (shadow_reg)
1767 snd_ac97_write_cache(ac97, shadow_reg, saved);
1768 *r_result = result;
1769 }
1770
1771 /* check AC97_SPDIF register to accept which sample rates */
1772 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97)
1773 {
1774 unsigned int result = 0;
1775 int i;
1776 static unsigned short ctl_bits[] = {
1777 AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K
1778 };
1779 static unsigned int rate_bits[] = {
1780 SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000
1781 };
1782
1783 for (i = 0; i < (int)ARRAY_SIZE(ctl_bits); i++) {
1784 snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, ctl_bits[i]);
1785 if ((snd_ac97_read(ac97, AC97_SPDIF) & AC97_SC_SPSR_MASK) == ctl_bits[i])
1786 result |= rate_bits[i];
1787 }
1788 return result;
1789 }
1790
1791 /* look for the codec id table matching with the given id */
1792 static const struct ac97_codec_id *look_for_codec_id(const struct ac97_codec_id *table,
1793 unsigned int id)
1794 {
1795 const struct ac97_codec_id *pid;
1796
1797 for (pid = table; pid->id; pid++)
1798 if (pid->id == (id & pid->mask))
1799 return pid;
1800 return NULL;
1801 }
1802
1803 void snd_ac97_get_name(struct snd_ac97 *ac97, unsigned int id, char *name, int modem)
1804 {
1805 const struct ac97_codec_id *pid;
1806
1807 sprintf(name, "0x%x %c%c%c", id,
1808 printable(id >> 24),
1809 printable(id >> 16),
1810 printable(id >> 8));
1811 pid = look_for_codec_id(snd_ac97_codec_id_vendors, id);
1812 if (! pid)
1813 return;
1814
1815 strcpy(name, pid->name);
1816 if (ac97 && pid->patch) {
1817 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1818 (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1819 pid->patch(ac97);
1820 }
1821
1822 pid = look_for_codec_id(snd_ac97_codec_ids, id);
1823 if (pid) {
1824 strcat(name, " ");
1825 strcat(name, pid->name);
1826 if (pid->mask != 0xffffffff)
1827 sprintf(name + strlen(name), " rev %d", id & ~pid->mask);
1828 if (ac97 && pid->patch) {
1829 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1830 (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1831 pid->patch(ac97);
1832 }
1833 } else
1834 sprintf(name + strlen(name), " id %x", id & 0xff);
1835 }
1836
1837 /**
1838 * snd_ac97_get_short_name - retrieve codec name
1839 * @ac97: the codec instance
1840 *
1841 * Return: The short identifying name of the codec.
1842 */
1843 const char *snd_ac97_get_short_name(struct snd_ac97 *ac97)
1844 {
1845 const struct ac97_codec_id *pid;
1846
1847 for (pid = snd_ac97_codec_ids; pid->id; pid++)
1848 if (pid->id == (ac97->id & pid->mask))
1849 return pid->name;
1850 return "unknown codec";
1851 }
1852
1853 EXPORT_SYMBOL(snd_ac97_get_short_name);
1854
1855 /* wait for a while until registers are accessible after RESET
1856 * return 0 if ok, negative not ready
1857 */
1858 static int ac97_reset_wait(struct snd_ac97 *ac97, int timeout, int with_modem)
1859 {
1860 unsigned long end_time;
1861 unsigned short val;
1862
1863 end_time = jiffies + timeout;
1864 do {
1865
1866 /* use preliminary reads to settle the communication */
1867 snd_ac97_read(ac97, AC97_RESET);
1868 snd_ac97_read(ac97, AC97_VENDOR_ID1);
1869 snd_ac97_read(ac97, AC97_VENDOR_ID2);
1870 /* modem? */
1871 if (with_modem) {
1872 val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1873 if (val != 0xffff && (val & 1) != 0)
1874 return 0;
1875 }
1876 if (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) {
1877 /* probably only Xbox issue - all registers are read as zero */
1878 val = snd_ac97_read(ac97, AC97_VENDOR_ID1);
1879 if (val != 0 && val != 0xffff)
1880 return 0;
1881 } else {
1882 /* because the PCM or MASTER volume registers can be modified,
1883 * the REC_GAIN register is used for tests
1884 */
1885 /* test if we can write to the record gain volume register */
1886 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
1887 if ((snd_ac97_read(ac97, AC97_REC_GAIN) & 0x7fff) == 0x0a05)
1888 return 0;
1889 }
1890 schedule_timeout_uninterruptible(1);
1891 } while (time_after_eq(end_time, jiffies));
1892 return -ENODEV;
1893 }
1894
1895 /**
1896 * snd_ac97_bus - create an AC97 bus component
1897 * @card: the card instance
1898 * @num: the bus number
1899 * @ops: the bus callbacks table
1900 * @private_data: private data pointer for the new instance
1901 * @rbus: the pointer to store the new AC97 bus instance.
1902 *
1903 * Creates an AC97 bus component. An struct snd_ac97_bus instance is newly
1904 * allocated and initialized.
1905 *
1906 * The ops table must include valid callbacks (at least read and
1907 * write). The other callbacks, wait and reset, are not mandatory.
1908 *
1909 * The clock is set to 48000. If another clock is needed, set
1910 * (*rbus)->clock manually.
1911 *
1912 * The AC97 bus instance is registered as a low-level device, so you don't
1913 * have to release it manually.
1914 *
1915 * Return: Zero if successful, or a negative error code on failure.
1916 */
1917 int snd_ac97_bus(struct snd_card *card, int num, struct snd_ac97_bus_ops *ops,
1918 void *private_data, struct snd_ac97_bus **rbus)
1919 {
1920 int err;
1921 struct snd_ac97_bus *bus;
1922 static struct snd_device_ops dev_ops = {
1923 .dev_free = snd_ac97_bus_dev_free,
1924 };
1925
1926 if (snd_BUG_ON(!card))
1927 return -EINVAL;
1928 bus = kzalloc(sizeof(*bus), GFP_KERNEL);
1929 if (bus == NULL)
1930 return -ENOMEM;
1931 bus->card = card;
1932 bus->num = num;
1933 bus->ops = ops;
1934 bus->private_data = private_data;
1935 bus->clock = 48000;
1936 spin_lock_init(&bus->bus_lock);
1937 snd_ac97_bus_proc_init(bus);
1938 if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
1939 snd_ac97_bus_free(bus);
1940 return err;
1941 }
1942 if (rbus)
1943 *rbus = bus;
1944 return 0;
1945 }
1946
1947 EXPORT_SYMBOL(snd_ac97_bus);
1948
1949 /* stop no dev release warning */
1950 static void ac97_device_release(struct device * dev)
1951 {
1952 }
1953
1954 /* register ac97 codec to bus */
1955 static int snd_ac97_dev_register(struct snd_device *device)
1956 {
1957 struct snd_ac97 *ac97 = device->device_data;
1958 int err;
1959
1960 ac97->dev.bus = &ac97_bus_type;
1961 ac97->dev.parent = ac97->bus->card->dev;
1962 ac97->dev.release = ac97_device_release;
1963 dev_set_name(&ac97->dev, "%d-%d:%s",
1964 ac97->bus->card->number, ac97->num,
1965 snd_ac97_get_short_name(ac97));
1966 if ((err = device_register(&ac97->dev)) < 0) {
1967 ac97_err(ac97, "Can't register ac97 bus\n");
1968 ac97->dev.bus = NULL;
1969 return err;
1970 }
1971 return 0;
1972 }
1973
1974 /* disconnect ac97 codec */
1975 static int snd_ac97_dev_disconnect(struct snd_device *device)
1976 {
1977 struct snd_ac97 *ac97 = device->device_data;
1978 if (ac97->dev.bus)
1979 device_unregister(&ac97->dev);
1980 return 0;
1981 }
1982
1983 /* build_ops to do nothing */
1984 static const struct snd_ac97_build_ops null_build_ops;
1985
1986 #ifdef CONFIG_SND_AC97_POWER_SAVE
1987 static void do_update_power(struct work_struct *work)
1988 {
1989 update_power_regs(
1990 container_of(work, struct snd_ac97, power_work.work));
1991 }
1992 #endif
1993
1994 /**
1995 * snd_ac97_mixer - create an Codec97 component
1996 * @bus: the AC97 bus which codec is attached to
1997 * @template: the template of ac97, including index, callbacks and
1998 * the private data.
1999 * @rac97: the pointer to store the new ac97 instance.
2000 *
2001 * Creates an Codec97 component. An struct snd_ac97 instance is newly
2002 * allocated and initialized from the template. The codec
2003 * is then initialized by the standard procedure.
2004 *
2005 * The template must include the codec number (num) and address (addr),
2006 * and the private data (private_data).
2007 *
2008 * The ac97 instance is registered as a low-level device, so you don't
2009 * have to release it manually.
2010 *
2011 * Return: Zero if successful, or a negative error code on failure.
2012 */
2013 int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template, struct snd_ac97 **rac97)
2014 {
2015 int err;
2016 struct snd_ac97 *ac97;
2017 struct snd_card *card;
2018 char name[64];
2019 unsigned long end_time;
2020 unsigned int reg;
2021 const struct ac97_codec_id *pid;
2022 static struct snd_device_ops ops = {
2023 .dev_free = snd_ac97_dev_free,
2024 .dev_register = snd_ac97_dev_register,
2025 .dev_disconnect = snd_ac97_dev_disconnect,
2026 };
2027
2028 if (rac97)
2029 *rac97 = NULL;
2030 if (snd_BUG_ON(!bus || !template))
2031 return -EINVAL;
2032 if (snd_BUG_ON(template->num >= 4))
2033 return -EINVAL;
2034 if (bus->codec[template->num])
2035 return -EBUSY;
2036
2037 card = bus->card;
2038 ac97 = kzalloc(sizeof(*ac97), GFP_KERNEL);
2039 if (ac97 == NULL)
2040 return -ENOMEM;
2041 ac97->private_data = template->private_data;
2042 ac97->private_free = template->private_free;
2043 ac97->bus = bus;
2044 ac97->pci = template->pci;
2045 ac97->num = template->num;
2046 ac97->addr = template->addr;
2047 ac97->scaps = template->scaps;
2048 ac97->res_table = template->res_table;
2049 bus->codec[ac97->num] = ac97;
2050 mutex_init(&ac97->reg_mutex);
2051 mutex_init(&ac97->page_mutex);
2052 #ifdef CONFIG_SND_AC97_POWER_SAVE
2053 INIT_DELAYED_WORK(&ac97->power_work, do_update_power);
2054 #endif
2055
2056 #ifdef CONFIG_PCI
2057 if (ac97->pci) {
2058 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_VENDOR_ID, &ac97->subsystem_vendor);
2059 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_ID, &ac97->subsystem_device);
2060 }
2061 #endif
2062 if (bus->ops->reset) {
2063 bus->ops->reset(ac97);
2064 goto __access_ok;
2065 }
2066
2067 ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
2068 ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
2069 if (ac97->id && ac97->id != (unsigned int)-1) {
2070 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2071 if (pid && (pid->flags & AC97_DEFAULT_POWER_OFF))
2072 goto __access_ok;
2073 }
2074
2075 /* reset to defaults */
2076 if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2077 snd_ac97_write(ac97, AC97_RESET, 0);
2078 if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2079 snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2080 if (bus->ops->wait)
2081 bus->ops->wait(ac97);
2082 else {
2083 udelay(50);
2084 if (ac97->scaps & AC97_SCAP_SKIP_AUDIO)
2085 err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 1);
2086 else {
2087 err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 0);
2088 if (err < 0)
2089 err = ac97_reset_wait(ac97,
2090 msecs_to_jiffies(500), 1);
2091 }
2092 if (err < 0) {
2093 ac97_warn(ac97, "AC'97 %d does not respond - RESET\n",
2094 ac97->num);
2095 /* proceed anyway - it's often non-critical */
2096 }
2097 }
2098 __access_ok:
2099 ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
2100 ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
2101 if (! (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) &&
2102 (ac97->id == 0x00000000 || ac97->id == 0xffffffff)) {
2103 ac97_err(ac97,
2104 "AC'97 %d access is not valid [0x%x], removing mixer.\n",
2105 ac97->num, ac97->id);
2106 snd_ac97_free(ac97);
2107 return -EIO;
2108 }
2109 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2110 if (pid)
2111 ac97->flags |= pid->flags;
2112
2113 /* test for AC'97 */
2114 if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO) && !(ac97->scaps & AC97_SCAP_AUDIO)) {
2115 /* test if we can write to the record gain volume register */
2116 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a06);
2117 if (((err = snd_ac97_read(ac97, AC97_REC_GAIN)) & 0x7fff) == 0x0a06)
2118 ac97->scaps |= AC97_SCAP_AUDIO;
2119 }
2120 if (ac97->scaps & AC97_SCAP_AUDIO) {
2121 ac97->caps = snd_ac97_read(ac97, AC97_RESET);
2122 ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);
2123 if (ac97->ext_id == 0xffff) /* invalid combination */
2124 ac97->ext_id = 0;
2125 }
2126
2127 /* test for MC'97 */
2128 if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM) && !(ac97->scaps & AC97_SCAP_MODEM)) {
2129 ac97->ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2130 if (ac97->ext_mid == 0xffff) /* invalid combination */
2131 ac97->ext_mid = 0;
2132 if (ac97->ext_mid & 1)
2133 ac97->scaps |= AC97_SCAP_MODEM;
2134 }
2135
2136 if (!ac97_is_audio(ac97) && !ac97_is_modem(ac97)) {
2137 if (!(ac97->scaps & (AC97_SCAP_SKIP_AUDIO|AC97_SCAP_SKIP_MODEM)))
2138 ac97_err(ac97,
2139 "AC'97 %d access error (not audio or modem codec)\n",
2140 ac97->num);
2141 snd_ac97_free(ac97);
2142 return -EACCES;
2143 }
2144
2145 if (bus->ops->reset) // FIXME: always skipping?
2146 goto __ready_ok;
2147
2148 /* FIXME: add powerdown control */
2149 if (ac97_is_audio(ac97)) {
2150 /* nothing should be in powerdown mode */
2151 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2152 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2153 snd_ac97_write_cache(ac97, AC97_RESET, 0); /* reset to defaults */
2154 udelay(100);
2155 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2156 }
2157 /* nothing should be in powerdown mode */
2158 snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0);
2159 end_time = jiffies + msecs_to_jiffies(5000);
2160 do {
2161 if ((snd_ac97_read(ac97, AC97_POWERDOWN) & 0x0f) == 0x0f)
2162 goto __ready_ok;
2163 schedule_timeout_uninterruptible(1);
2164 } while (time_after_eq(end_time, jiffies));
2165 ac97_warn(ac97,
2166 "AC'97 %d analog subsections not ready\n", ac97->num);
2167 }
2168
2169 /* FIXME: add powerdown control */
2170 if (ac97_is_modem(ac97)) {
2171 unsigned char tmp;
2172
2173 /* nothing should be in powerdown mode */
2174 /* note: it's important to set the rate at first */
2175 tmp = AC97_MEA_GPIO;
2176 if (ac97->ext_mid & AC97_MEI_LINE1) {
2177 snd_ac97_write_cache(ac97, AC97_LINE1_RATE, 8000);
2178 tmp |= AC97_MEA_ADC1 | AC97_MEA_DAC1;
2179 }
2180 if (ac97->ext_mid & AC97_MEI_LINE2) {
2181 snd_ac97_write_cache(ac97, AC97_LINE2_RATE, 8000);
2182 tmp |= AC97_MEA_ADC2 | AC97_MEA_DAC2;
2183 }
2184 if (ac97->ext_mid & AC97_MEI_HANDSET) {
2185 snd_ac97_write_cache(ac97, AC97_HANDSET_RATE, 8000);
2186 tmp |= AC97_MEA_HADC | AC97_MEA_HDAC;
2187 }
2188 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2189 udelay(100);
2190 /* nothing should be in powerdown mode */
2191 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2192 end_time = jiffies + msecs_to_jiffies(100);
2193 do {
2194 if ((snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS) & tmp) == tmp)
2195 goto __ready_ok;
2196 schedule_timeout_uninterruptible(1);
2197 } while (time_after_eq(end_time, jiffies));
2198 ac97_warn(ac97,
2199 "MC'97 %d converters and GPIO not ready (0x%x)\n",
2200 ac97->num,
2201 snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS));
2202 }
2203
2204 __ready_ok:
2205 if (ac97_is_audio(ac97))
2206 ac97->addr = (ac97->ext_id & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT;
2207 else
2208 ac97->addr = (ac97->ext_mid & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT;
2209 if (ac97->ext_id & 0x01c9) { /* L/R, MIC, SDAC, LDAC VRA support */
2210 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2211 reg |= ac97->ext_id & 0x01c0; /* LDAC/SDAC/CDAC */
2212 if (! bus->no_vra)
2213 reg |= ac97->ext_id & 0x0009; /* VRA/VRM */
2214 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2215 }
2216 if ((ac97->ext_id & AC97_EI_DRA) && bus->dra) {
2217 /* Intel controllers require double rate data to be put in
2218 * slots 7+8, so let's hope the codec supports it. */
2219 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, AC97_GP_DRSS_78);
2220 if ((snd_ac97_read(ac97, AC97_GENERAL_PURPOSE) & AC97_GP_DRSS_MASK) == AC97_GP_DRSS_78)
2221 ac97->flags |= AC97_DOUBLE_RATE;
2222 /* restore to slots 10/11 to avoid the confliction with surrounds */
2223 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, 0);
2224 }
2225 if (ac97->ext_id & AC97_EI_VRA) { /* VRA support */
2226 snd_ac97_determine_rates(ac97, AC97_PCM_FRONT_DAC_RATE, 0, &ac97->rates[AC97_RATES_FRONT_DAC]);
2227 snd_ac97_determine_rates(ac97, AC97_PCM_LR_ADC_RATE, 0, &ac97->rates[AC97_RATES_ADC]);
2228 } else {
2229 ac97->rates[AC97_RATES_FRONT_DAC] = SNDRV_PCM_RATE_48000;
2230 if (ac97->flags & AC97_DOUBLE_RATE)
2231 ac97->rates[AC97_RATES_FRONT_DAC] |= SNDRV_PCM_RATE_96000;
2232 ac97->rates[AC97_RATES_ADC] = SNDRV_PCM_RATE_48000;
2233 }
2234 if (ac97->ext_id & AC97_EI_SPDIF) {
2235 /* codec specific code (patch) should override these values */
2236 ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_32000;
2237 }
2238 if (ac97->ext_id & AC97_EI_VRM) { /* MIC VRA support */
2239 snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]);
2240 } else {
2241 ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000;
2242 }
2243 if (ac97->ext_id & AC97_EI_SDAC) { /* SDAC support */
2244 snd_ac97_determine_rates(ac97, AC97_PCM_SURR_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_SURR_DAC]);
2245 ac97->scaps |= AC97_SCAP_SURROUND_DAC;
2246 }
2247 if (ac97->ext_id & AC97_EI_LDAC) { /* LDAC support */
2248 snd_ac97_determine_rates(ac97, AC97_PCM_LFE_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_LFE_DAC]);
2249 ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
2250 }
2251 /* additional initializations */
2252 if (bus->ops->init)
2253 bus->ops->init(ac97);
2254 snd_ac97_get_name(ac97, ac97->id, name, !ac97_is_audio(ac97));
2255 snd_ac97_get_name(NULL, ac97->id, name, !ac97_is_audio(ac97)); // ac97->id might be changed in the special setup code
2256 if (! ac97->build_ops)
2257 ac97->build_ops = &null_build_ops;
2258
2259 if (ac97_is_audio(ac97)) {
2260 char comp[16];
2261 if (card->mixername[0] == '\0') {
2262 strcpy(card->mixername, name);
2263 } else {
2264 if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2265 strcat(card->mixername, ",");
2266 strcat(card->mixername, name);
2267 }
2268 }
2269 sprintf(comp, "AC97a:%08x", ac97->id);
2270 if ((err = snd_component_add(card, comp)) < 0) {
2271 snd_ac97_free(ac97);
2272 return err;
2273 }
2274 if (snd_ac97_mixer_build(ac97) < 0) {
2275 snd_ac97_free(ac97);
2276 return -ENOMEM;
2277 }
2278 }
2279 if (ac97_is_modem(ac97)) {
2280 char comp[16];
2281 if (card->mixername[0] == '\0') {
2282 strcpy(card->mixername, name);
2283 } else {
2284 if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2285 strcat(card->mixername, ",");
2286 strcat(card->mixername, name);
2287 }
2288 }
2289 sprintf(comp, "AC97m:%08x", ac97->id);
2290 if ((err = snd_component_add(card, comp)) < 0) {
2291 snd_ac97_free(ac97);
2292 return err;
2293 }
2294 if (snd_ac97_modem_build(card, ac97) < 0) {
2295 snd_ac97_free(ac97);
2296 return -ENOMEM;
2297 }
2298 }
2299 if (ac97_is_audio(ac97))
2300 update_power_regs(ac97);
2301 snd_ac97_proc_init(ac97);
2302 if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ac97, &ops)) < 0) {
2303 snd_ac97_free(ac97);
2304 return err;
2305 }
2306 *rac97 = ac97;
2307 return 0;
2308 }
2309
2310 EXPORT_SYMBOL(snd_ac97_mixer);
2311
2312 /*
2313 * Power down the chip.
2314 *
2315 * MASTER and HEADPHONE registers are muted but the register cache values
2316 * are not changed, so that the values can be restored in snd_ac97_resume().
2317 */
2318 static void snd_ac97_powerdown(struct snd_ac97 *ac97)
2319 {
2320 unsigned short power;
2321
2322 if (ac97_is_audio(ac97)) {
2323 /* some codecs have stereo mute bits */
2324 snd_ac97_write(ac97, AC97_MASTER, 0x9f9f);
2325 snd_ac97_write(ac97, AC97_HEADPHONE, 0x9f9f);
2326 }
2327
2328 /* surround, CLFE, mic powerdown */
2329 power = ac97->regs[AC97_EXTENDED_STATUS];
2330 if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2331 power |= AC97_EA_PRJ;
2332 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2333 power |= AC97_EA_PRI | AC97_EA_PRK;
2334 power |= AC97_EA_PRL;
2335 snd_ac97_write(ac97, AC97_EXTENDED_STATUS, power);
2336
2337 /* powerdown external amplifier */
2338 if (ac97->scaps & AC97_SCAP_INV_EAPD)
2339 power = ac97->regs[AC97_POWERDOWN] & ~AC97_PD_EAPD;
2340 else if (! (ac97->scaps & AC97_SCAP_EAPD_LED))
2341 power = ac97->regs[AC97_POWERDOWN] | AC97_PD_EAPD;
2342 power |= AC97_PD_PR6; /* Headphone amplifier powerdown */
2343 power |= AC97_PD_PR0 | AC97_PD_PR1; /* ADC & DAC powerdown */
2344 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2345 udelay(100);
2346 power |= AC97_PD_PR2; /* Analog Mixer powerdown (Vref on) */
2347 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2348 if (ac97_is_power_save_mode(ac97)) {
2349 power |= AC97_PD_PR3; /* Analog Mixer powerdown */
2350 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2351 udelay(100);
2352 /* AC-link powerdown, internal Clk disable */
2353 /* FIXME: this may cause click noises on some boards */
2354 power |= AC97_PD_PR4 | AC97_PD_PR5;
2355 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2356 }
2357 }
2358
2359
2360 struct ac97_power_reg {
2361 unsigned short reg;
2362 unsigned short power_reg;
2363 unsigned short mask;
2364 };
2365
2366 enum { PWIDX_ADC, PWIDX_FRONT, PWIDX_CLFE, PWIDX_SURR, PWIDX_MIC, PWIDX_SIZE };
2367
2368 static struct ac97_power_reg power_regs[PWIDX_SIZE] = {
2369 [PWIDX_ADC] = { AC97_PCM_LR_ADC_RATE, AC97_POWERDOWN, AC97_PD_PR0},
2370 [PWIDX_FRONT] = { AC97_PCM_FRONT_DAC_RATE, AC97_POWERDOWN, AC97_PD_PR1},
2371 [PWIDX_CLFE] = { AC97_PCM_LFE_DAC_RATE, AC97_EXTENDED_STATUS,
2372 AC97_EA_PRI | AC97_EA_PRK},
2373 [PWIDX_SURR] = { AC97_PCM_SURR_DAC_RATE, AC97_EXTENDED_STATUS,
2374 AC97_EA_PRJ},
2375 [PWIDX_MIC] = { AC97_PCM_MIC_ADC_RATE, AC97_EXTENDED_STATUS,
2376 AC97_EA_PRL},
2377 };
2378
2379 #ifdef CONFIG_SND_AC97_POWER_SAVE
2380 /**
2381 * snd_ac97_update_power - update the powerdown register
2382 * @ac97: the codec instance
2383 * @reg: the rate register, e.g. AC97_PCM_FRONT_DAC_RATE
2384 * @powerup: non-zero when power up the part
2385 *
2386 * Update the AC97 powerdown register bits of the given part.
2387 *
2388 * Return: Zero.
2389 */
2390 int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup)
2391 {
2392 int i;
2393
2394 if (! ac97)
2395 return 0;
2396
2397 if (reg) {
2398 /* SPDIF requires DAC power, too */
2399 if (reg == AC97_SPDIF)
2400 reg = AC97_PCM_FRONT_DAC_RATE;
2401 for (i = 0; i < PWIDX_SIZE; i++) {
2402 if (power_regs[i].reg == reg) {
2403 if (powerup)
2404 ac97->power_up |= (1 << i);
2405 else
2406 ac97->power_up &= ~(1 << i);
2407 break;
2408 }
2409 }
2410 }
2411
2412 if (ac97_is_power_save_mode(ac97) && !powerup)
2413 /* adjust power-down bits after two seconds delay
2414 * (for avoiding loud click noises for many (OSS) apps
2415 * that open/close frequently)
2416 */
2417 schedule_delayed_work(&ac97->power_work,
2418 msecs_to_jiffies(power_save * 1000));
2419 else {
2420 cancel_delayed_work(&ac97->power_work);
2421 update_power_regs(ac97);
2422 }
2423
2424 return 0;
2425 }
2426
2427 EXPORT_SYMBOL(snd_ac97_update_power);
2428 #endif /* CONFIG_SND_AC97_POWER_SAVE */
2429
2430 static void update_power_regs(struct snd_ac97 *ac97)
2431 {
2432 unsigned int power_up, bits;
2433 int i;
2434
2435 power_up = (1 << PWIDX_FRONT) | (1 << PWIDX_ADC);
2436 power_up |= (1 << PWIDX_MIC);
2437 if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2438 power_up |= (1 << PWIDX_SURR);
2439 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2440 power_up |= (1 << PWIDX_CLFE);
2441 #ifdef CONFIG_SND_AC97_POWER_SAVE
2442 if (ac97_is_power_save_mode(ac97))
2443 power_up = ac97->power_up;
2444 #endif
2445 if (power_up) {
2446 if (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2) {
2447 /* needs power-up analog mix and vref */
2448 snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2449 AC97_PD_PR3, 0);
2450 msleep(1);
2451 snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2452 AC97_PD_PR2, 0);
2453 }
2454 }
2455 for (i = 0; i < PWIDX_SIZE; i++) {
2456 if (power_up & (1 << i))
2457 bits = 0;
2458 else
2459 bits = power_regs[i].mask;
2460 snd_ac97_update_bits(ac97, power_regs[i].power_reg,
2461 power_regs[i].mask, bits);
2462 }
2463 if (! power_up) {
2464 if (! (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2)) {
2465 /* power down analog mix and vref */
2466 snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2467 AC97_PD_PR2, AC97_PD_PR2);
2468 snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2469 AC97_PD_PR3, AC97_PD_PR3);
2470 }
2471 }
2472 }
2473
2474
2475 #ifdef CONFIG_PM
2476 /**
2477 * snd_ac97_suspend - General suspend function for AC97 codec
2478 * @ac97: the ac97 instance
2479 *
2480 * Suspends the codec, power down the chip.
2481 */
2482 void snd_ac97_suspend(struct snd_ac97 *ac97)
2483 {
2484 if (! ac97)
2485 return;
2486 if (ac97->build_ops->suspend)
2487 ac97->build_ops->suspend(ac97);
2488 #ifdef CONFIG_SND_AC97_POWER_SAVE
2489 cancel_delayed_work_sync(&ac97->power_work);
2490 #endif
2491 snd_ac97_powerdown(ac97);
2492 }
2493
2494 EXPORT_SYMBOL(snd_ac97_suspend);
2495
2496 /*
2497 * restore ac97 status
2498 */
2499 static void snd_ac97_restore_status(struct snd_ac97 *ac97)
2500 {
2501 int i;
2502
2503 for (i = 2; i < 0x7c ; i += 2) {
2504 if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
2505 continue;
2506 /* restore only accessible registers
2507 * some chip (e.g. nm256) may hang up when unsupported registers
2508 * are accessed..!
2509 */
2510 if (test_bit(i, ac97->reg_accessed)) {
2511 snd_ac97_write(ac97, i, ac97->regs[i]);
2512 snd_ac97_read(ac97, i);
2513 }
2514 }
2515 }
2516
2517 /*
2518 * restore IEC958 status
2519 */
2520 static void snd_ac97_restore_iec958(struct snd_ac97 *ac97)
2521 {
2522 if (ac97->ext_id & AC97_EI_SPDIF) {
2523 if (ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_SPDIF) {
2524 /* reset spdif status */
2525 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
2526 snd_ac97_write(ac97, AC97_EXTENDED_STATUS, ac97->regs[AC97_EXTENDED_STATUS]);
2527 if (ac97->flags & AC97_CS_SPDIF)
2528 snd_ac97_write(ac97, AC97_CSR_SPDIF, ac97->regs[AC97_CSR_SPDIF]);
2529 else
2530 snd_ac97_write(ac97, AC97_SPDIF, ac97->regs[AC97_SPDIF]);
2531 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
2532 }
2533 }
2534 }
2535
2536 /**
2537 * snd_ac97_resume - General resume function for AC97 codec
2538 * @ac97: the ac97 instance
2539 *
2540 * Do the standard resume procedure, power up and restoring the
2541 * old register values.
2542 */
2543 void snd_ac97_resume(struct snd_ac97 *ac97)
2544 {
2545 unsigned long end_time;
2546
2547 if (! ac97)
2548 return;
2549
2550 if (ac97->bus->ops->reset) {
2551 ac97->bus->ops->reset(ac97);
2552 goto __reset_ready;
2553 }
2554
2555 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2556 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2557 if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2558 snd_ac97_write(ac97, AC97_RESET, 0);
2559 else if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2560 snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2561 udelay(100);
2562 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2563 }
2564 snd_ac97_write(ac97, AC97_GENERAL_PURPOSE, 0);
2565
2566 snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]);
2567 if (ac97_is_audio(ac97)) {
2568 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8101);
2569 end_time = jiffies + msecs_to_jiffies(100);
2570 do {
2571 if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101)
2572 break;
2573 schedule_timeout_uninterruptible(1);
2574 } while (time_after_eq(end_time, jiffies));
2575 /* FIXME: extra delay */
2576 ac97->bus->ops->write(ac97, AC97_MASTER, AC97_MUTE_MASK_MONO);
2577 if (snd_ac97_read(ac97, AC97_MASTER) != AC97_MUTE_MASK_MONO)
2578 msleep(250);
2579 } else {
2580 end_time = jiffies + msecs_to_jiffies(100);
2581 do {
2582 unsigned short val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2583 if (val != 0xffff && (val & 1) != 0)
2584 break;
2585 schedule_timeout_uninterruptible(1);
2586 } while (time_after_eq(end_time, jiffies));
2587 }
2588 __reset_ready:
2589
2590 if (ac97->bus->ops->init)
2591 ac97->bus->ops->init(ac97);
2592
2593 if (ac97->build_ops->resume)
2594 ac97->build_ops->resume(ac97);
2595 else {
2596 snd_ac97_restore_status(ac97);
2597 snd_ac97_restore_iec958(ac97);
2598 }
2599 }
2600
2601 EXPORT_SYMBOL(snd_ac97_resume);
2602 #endif
2603
2604
2605 /*
2606 * Hardware tuning
2607 */
2608 static void set_ctl_name(char *dst, const char *src, const char *suffix)
2609 {
2610 if (suffix)
2611 sprintf(dst, "%s %s", src, suffix);
2612 else
2613 strcpy(dst, src);
2614 }
2615
2616 /* remove the control with the given name and optional suffix */
2617 static int snd_ac97_remove_ctl(struct snd_ac97 *ac97, const char *name,
2618 const char *suffix)
2619 {
2620 struct snd_ctl_elem_id id;
2621 memset(&id, 0, sizeof(id));
2622 set_ctl_name(id.name, name, suffix);
2623 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2624 return snd_ctl_remove_id(ac97->bus->card, &id);
2625 }
2626
2627 static struct snd_kcontrol *ctl_find(struct snd_ac97 *ac97, const char *name, const char *suffix)
2628 {
2629 struct snd_ctl_elem_id sid;
2630 memset(&sid, 0, sizeof(sid));
2631 set_ctl_name(sid.name, name, suffix);
2632 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2633 return snd_ctl_find_id(ac97->bus->card, &sid);
2634 }
2635
2636 /* rename the control with the given name and optional suffix */
2637 static int snd_ac97_rename_ctl(struct snd_ac97 *ac97, const char *src,
2638 const char *dst, const char *suffix)
2639 {
2640 struct snd_kcontrol *kctl = ctl_find(ac97, src, suffix);
2641 if (kctl) {
2642 set_ctl_name(kctl->id.name, dst, suffix);
2643 return 0;
2644 }
2645 return -ENOENT;
2646 }
2647
2648 /* rename both Volume and Switch controls - don't check the return value */
2649 static void snd_ac97_rename_vol_ctl(struct snd_ac97 *ac97, const char *src,
2650 const char *dst)
2651 {
2652 snd_ac97_rename_ctl(ac97, src, dst, "Switch");
2653 snd_ac97_rename_ctl(ac97, src, dst, "Volume");
2654 }
2655
2656 /* swap controls */
2657 static int snd_ac97_swap_ctl(struct snd_ac97 *ac97, const char *s1,
2658 const char *s2, const char *suffix)
2659 {
2660 struct snd_kcontrol *kctl1, *kctl2;
2661 kctl1 = ctl_find(ac97, s1, suffix);
2662 kctl2 = ctl_find(ac97, s2, suffix);
2663 if (kctl1 && kctl2) {
2664 set_ctl_name(kctl1->id.name, s2, suffix);
2665 set_ctl_name(kctl2->id.name, s1, suffix);
2666 return 0;
2667 }
2668 return -ENOENT;
2669 }
2670
2671 #if 1
2672 /* bind hp and master controls instead of using only hp control */
2673 static int bind_hp_volsw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2674 {
2675 int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2676 if (err > 0) {
2677 unsigned long priv_saved = kcontrol->private_value;
2678 kcontrol->private_value = (kcontrol->private_value & ~0xff) | AC97_HEADPHONE;
2679 snd_ac97_put_volsw(kcontrol, ucontrol);
2680 kcontrol->private_value = priv_saved;
2681 }
2682 return err;
2683 }
2684
2685 /* ac97 tune: bind Master and Headphone controls */
2686 static int tune_hp_only(struct snd_ac97 *ac97)
2687 {
2688 struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2689 struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2690 if (! msw || ! mvol)
2691 return -ENOENT;
2692 msw->put = bind_hp_volsw_put;
2693 mvol->put = bind_hp_volsw_put;
2694 snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2695 snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2696 return 0;
2697 }
2698
2699 #else
2700 /* ac97 tune: use Headphone control as master */
2701 static int tune_hp_only(struct snd_ac97 *ac97)
2702 {
2703 if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2704 return -ENOENT;
2705 snd_ac97_remove_ctl(ac97, "Master Playback", "Switch");
2706 snd_ac97_remove_ctl(ac97, "Master Playback", "Volume");
2707 snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2708 return 0;
2709 }
2710 #endif
2711
2712 /* ac97 tune: swap Headphone and Master controls */
2713 static int tune_swap_hp(struct snd_ac97 *ac97)
2714 {
2715 if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2716 return -ENOENT;
2717 snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Line-Out Playback");
2718 snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2719 return 0;
2720 }
2721
2722 /* ac97 tune: swap Surround and Master controls */
2723 static int tune_swap_surround(struct snd_ac97 *ac97)
2724 {
2725 if (snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Switch") ||
2726 snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Volume"))
2727 return -ENOENT;
2728 return 0;
2729 }
2730
2731 /* ac97 tune: set up mic sharing for AD codecs */
2732 static int tune_ad_sharing(struct snd_ac97 *ac97)
2733 {
2734 unsigned short scfg;
2735 if ((ac97->id & 0xffffff00) != 0x41445300) {
2736 ac97_err(ac97, "ac97_quirk AD_SHARING is only for AD codecs\n");
2737 return -EINVAL;
2738 }
2739 /* Turn on OMS bit to route microphone to back panel */
2740 scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
2741 snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x0200);
2742 return 0;
2743 }
2744
2745 static const struct snd_kcontrol_new snd_ac97_alc_jack_detect =
2746 AC97_SINGLE("Jack Detect", AC97_ALC650_CLOCK, 5, 1, 0);
2747
2748 /* ac97 tune: set up ALC jack-select */
2749 static int tune_alc_jack(struct snd_ac97 *ac97)
2750 {
2751 if ((ac97->id & 0xffffff00) != 0x414c4700) {
2752 ac97_err(ac97,
2753 "ac97_quirk ALC_JACK is only for Realtek codecs\n");
2754 return -EINVAL;
2755 }
2756 snd_ac97_update_bits(ac97, 0x7a, 0x20, 0x20); /* select jack detect function */
2757 snd_ac97_update_bits(ac97, 0x7a, 0x01, 0x01); /* Line-out auto mute */
2758 if (ac97->id == AC97_ID_ALC658D)
2759 snd_ac97_update_bits(ac97, 0x74, 0x0800, 0x0800);
2760 return snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_alc_jack_detect, ac97));
2761 }
2762
2763 /* ac97 tune: inversed EAPD bit */
2764 static int tune_inv_eapd(struct snd_ac97 *ac97)
2765 {
2766 struct snd_kcontrol *kctl = ctl_find(ac97, "External Amplifier", NULL);
2767 if (! kctl)
2768 return -ENOENT;
2769 set_inv_eapd(ac97, kctl);
2770 return 0;
2771 }
2772
2773 static int master_mute_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2774 {
2775 int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2776 if (err > 0) {
2777 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2778 int shift = (kcontrol->private_value >> 8) & 0x0f;
2779 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2780 unsigned short mask;
2781 if (shift != rshift)
2782 mask = AC97_MUTE_MASK_STEREO;
2783 else
2784 mask = AC97_MUTE_MASK_MONO;
2785 snd_ac97_update_bits(ac97, AC97_POWERDOWN, AC97_PD_EAPD,
2786 (ac97->regs[AC97_MASTER] & mask) == mask ?
2787 AC97_PD_EAPD : 0);
2788 }
2789 return err;
2790 }
2791
2792 /* ac97 tune: EAPD controls mute LED bound with the master mute */
2793 static int tune_mute_led(struct snd_ac97 *ac97)
2794 {
2795 struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2796 if (! msw)
2797 return -ENOENT;
2798 msw->put = master_mute_sw_put;
2799 snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2800 snd_ac97_update_bits(
2801 ac97, AC97_POWERDOWN,
2802 AC97_PD_EAPD, AC97_PD_EAPD /* mute LED on */
2803 );
2804 ac97->scaps |= AC97_SCAP_EAPD_LED;
2805 return 0;
2806 }
2807
2808 static int hp_master_mute_sw_put(struct snd_kcontrol *kcontrol,
2809 struct snd_ctl_elem_value *ucontrol)
2810 {
2811 int err = bind_hp_volsw_put(kcontrol, ucontrol);
2812 if (err > 0) {
2813 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2814 int shift = (kcontrol->private_value >> 8) & 0x0f;
2815 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2816 unsigned short mask;
2817 if (shift != rshift)
2818 mask = AC97_MUTE_MASK_STEREO;
2819 else
2820 mask = AC97_MUTE_MASK_MONO;
2821 snd_ac97_update_bits(ac97, AC97_POWERDOWN, AC97_PD_EAPD,
2822 (ac97->regs[AC97_MASTER] & mask) == mask ?
2823 AC97_PD_EAPD : 0);
2824 }
2825 return err;
2826 }
2827
2828 static int tune_hp_mute_led(struct snd_ac97 *ac97)
2829 {
2830 struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2831 struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2832 if (! msw || ! mvol)
2833 return -ENOENT;
2834 msw->put = hp_master_mute_sw_put;
2835 mvol->put = bind_hp_volsw_put;
2836 snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2837 snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2838 snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2839 snd_ac97_update_bits(
2840 ac97, AC97_POWERDOWN,
2841 AC97_PD_EAPD, AC97_PD_EAPD /* mute LED on */
2842 );
2843 return 0;
2844 }
2845
2846 struct quirk_table {
2847 const char *name;
2848 int (*func)(struct snd_ac97 *);
2849 };
2850
2851 static struct quirk_table applicable_quirks[] = {
2852 { "none", NULL },
2853 { "hp_only", tune_hp_only },
2854 { "swap_hp", tune_swap_hp },
2855 { "swap_surround", tune_swap_surround },
2856 { "ad_sharing", tune_ad_sharing },
2857 { "alc_jack", tune_alc_jack },
2858 { "inv_eapd", tune_inv_eapd },
2859 { "mute_led", tune_mute_led },
2860 { "hp_mute_led", tune_hp_mute_led },
2861 };
2862
2863 /* apply the quirk with the given type */
2864 static int apply_quirk(struct snd_ac97 *ac97, int type)
2865 {
2866 if (type <= 0)
2867 return 0;
2868 else if (type >= ARRAY_SIZE(applicable_quirks))
2869 return -EINVAL;
2870 if (applicable_quirks[type].func)
2871 return applicable_quirks[type].func(ac97);
2872 return 0;
2873 }
2874
2875 /* apply the quirk with the given name */
2876 static int apply_quirk_str(struct snd_ac97 *ac97, const char *typestr)
2877 {
2878 int i;
2879 struct quirk_table *q;
2880
2881 for (i = 0; i < ARRAY_SIZE(applicable_quirks); i++) {
2882 q = &applicable_quirks[i];
2883 if (q->name && ! strcmp(typestr, q->name))
2884 return apply_quirk(ac97, i);
2885 }
2886 /* for compatibility, accept the numbers, too */
2887 if (*typestr >= '0' && *typestr <= '9')
2888 return apply_quirk(ac97, (int)simple_strtoul(typestr, NULL, 10));
2889 return -EINVAL;
2890 }
2891
2892 /**
2893 * snd_ac97_tune_hardware - tune up the hardware
2894 * @ac97: the ac97 instance
2895 * @quirk: quirk list
2896 * @override: explicit quirk value (overrides the list if non-NULL)
2897 *
2898 * Do some workaround for each pci device, such as renaming of the
2899 * headphone (true line-out) control as "Master".
2900 * The quirk-list must be terminated with a zero-filled entry.
2901 *
2902 * Return: Zero if successful, or a negative error code on failure.
2903 */
2904
2905 int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
2906 const struct ac97_quirk *quirk, const char *override)
2907 {
2908 int result;
2909
2910 /* quirk overriden? */
2911 if (override && strcmp(override, "-1") && strcmp(override, "default")) {
2912 result = apply_quirk_str(ac97, override);
2913 if (result < 0)
2914 ac97_err(ac97, "applying quirk type %s failed (%d)\n",
2915 override, result);
2916 return result;
2917 }
2918
2919 if (! quirk)
2920 return -EINVAL;
2921
2922 for (; quirk->subvendor; quirk++) {
2923 if (quirk->subvendor != ac97->subsystem_vendor)
2924 continue;
2925 if ((! quirk->mask && quirk->subdevice == ac97->subsystem_device) ||
2926 quirk->subdevice == (quirk->mask & ac97->subsystem_device)) {
2927 if (quirk->codec_id && quirk->codec_id != ac97->id)
2928 continue;
2929 ac97_dbg(ac97, "ac97 quirk for %s (%04x:%04x)\n",
2930 quirk->name, ac97->subsystem_vendor,
2931 ac97->subsystem_device);
2932 result = apply_quirk(ac97, quirk->type);
2933 if (result < 0)
2934 ac97_err(ac97,
2935 "applying quirk type %d for %s failed (%d)\n",
2936 quirk->type, quirk->name, result);
2937 return result;
2938 }
2939 }
2940 return 0;
2941 }
2942
2943 EXPORT_SYMBOL(snd_ac97_tune_hardware);
2944
2945 /*
2946 * INIT part
2947 */
2948
2949 static int __init alsa_ac97_init(void)
2950 {
2951 return 0;
2952 }
2953
2954 static void __exit alsa_ac97_exit(void)
2955 {
2956 }
2957
2958 module_init(alsa_ac97_init)
2959 module_exit(alsa_ac97_exit)
Linux with added FPC-III support