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[ALSA] intel_hda: MSI support
[net-next-2.6.git] / sound / pci / ac97 / ac97_codec.c
CommitLineData
1da177e4
LT		 1/*
2 * Copyright (c) by Jaroslav Kysela <perex@suse.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 <sound/driver.h>
26#include <linux/delay.h>
27#include <linux/init.h>
28#include <linux/slab.h>
29#include <linux/pci.h>
30#include <linux/moduleparam.h>
62932df8 31#include <linux/mutex.h>
1da177e4
LT		 32#include <sound/core.h>
33#include <sound/pcm.h>
34#include <sound/ac97_codec.h>
35#include <sound/asoundef.h>
36#include <sound/initval.h>
37#include "ac97_local.h"
38#include "ac97_id.h"
39#include "ac97_patch.h"
40
41MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
42MODULE_DESCRIPTION("Universal interface for Audio Codec '97");
43MODULE_LICENSE("GPL");
44
45static int enable_loopback;
46
47module_param(enable_loopback, bool, 0444);
48MODULE_PARM_DESC(enable_loopback, "Enable AC97 ADC/DAC Loopback Control");
49
6dbe6628
TI		 50#ifdef CONFIG_SND_AC97_POWER_SAVE
51static int power_save;
52module_param(power_save, bool, 0644);
53MODULE_PARM_DESC(power_save, "Enable AC97 power-saving control");
54#endif
1da177e4
LT		 55/*
56
57 */
58
ee42381e 59struct ac97_codec_id {
1da177e4
LT		 60 unsigned int id;
61 unsigned int mask;
62 const char *name;
ee42381e
TI		 63 int (*patch)(struct snd_ac97 *ac97);
64 int (*mpatch)(struct snd_ac97 *ac97);
1da177e4 65 unsigned int flags;
ee42381e 66};
1da177e4 67
ee42381e 68static const struct ac97_codec_id snd_ac97_codec_id_vendors[] = {
1da177e4
LT		 69{ 0x414b4d00, 0xffffff00, "Asahi Kasei", NULL, NULL },
70{ 0x41445300, 0xffffff00, "Analog Devices", NULL, NULL },
71{ 0x414c4300, 0xffffff00, "Realtek", NULL, NULL },
72{ 0x414c4700, 0xffffff00, "Realtek", NULL, NULL },
73{ 0x434d4900, 0xffffff00, "C-Media Electronics", NULL, NULL },
74{ 0x43525900, 0xffffff00, "Cirrus Logic", NULL, NULL },
75{ 0x43585400, 0xffffff00, "Conexant", NULL, NULL },
76{ 0x44543000, 0xffffff00, "Diamond Technology", NULL, NULL },
77{ 0x454d4300, 0xffffff00, "eMicro", NULL, NULL },
78{ 0x45838300, 0xffffff00, "ESS Technology", NULL, NULL },
79{ 0x48525300, 0xffffff00, "Intersil", NULL, NULL },
80{ 0x49434500, 0xffffff00, "ICEnsemble", NULL, NULL },
81{ 0x49544500, 0xffffff00, "ITE Tech.Inc", NULL, NULL },
82{ 0x4e534300, 0xffffff00, "National Semiconductor", NULL, NULL },
83{ 0x50534300, 0xffffff00, "Philips", NULL, NULL },
84{ 0x53494c00, 0xffffff00, "Silicon Laboratory", NULL, NULL },
85{ 0x54524100, 0xffffff00, "TriTech", NULL, NULL },
86{ 0x54584e00, 0xffffff00, "Texas Instruments", NULL, NULL },
87{ 0x56494100, 0xffffff00, "VIA Technologies", NULL, NULL },
88{ 0x57454300, 0xffffff00, "Winbond", NULL, NULL },
89{ 0x574d4c00, 0xffffff00, "Wolfson", NULL, NULL },
90{ 0x594d4800, 0xffffff00, "Yamaha", NULL, NULL },
91{ 0x83847600, 0xffffff00, "SigmaTel", NULL, NULL },
92{ 0, 0, NULL, NULL, NULL }
93};
94
ee42381e 95static const struct ac97_codec_id snd_ac97_codec_ids[] = {
1da177e4
LT		 96{ 0x414b4d00, 0xffffffff, "AK4540", NULL, NULL },
97{ 0x414b4d01, 0xffffffff, "AK4542", NULL, NULL },
98{ 0x414b4d02, 0xffffffff, "AK4543", NULL, NULL },
99{ 0x414b4d06, 0xffffffff, "AK4544A", NULL, NULL },
100{ 0x414b4d07, 0xffffffff, "AK4545", NULL, NULL },
101{ 0x41445303, 0xffffffff, "AD1819", patch_ad1819, NULL },
102{ 0x41445340, 0xffffffff, "AD1881", patch_ad1881, NULL },
103{ 0x41445348, 0xffffffff, "AD1881A", patch_ad1881, NULL },
104{ 0x41445360, 0xffffffff, "AD1885", patch_ad1885, NULL },
105{ 0x41445361, 0xffffffff, "AD1886", patch_ad1886, NULL },
106{ 0x41445362, 0xffffffff, "AD1887", patch_ad1881, NULL },
107{ 0x41445363, 0xffffffff, "AD1886A", patch_ad1881, NULL },
108{ 0x41445368, 0xffffffff, "AD1888", patch_ad1888, NULL },
109{ 0x41445370, 0xffffffff, "AD1980", patch_ad1980, NULL },
110{ 0x41445372, 0xffffffff, "AD1981A", patch_ad1981a, NULL },
111{ 0x41445374, 0xffffffff, "AD1981B", patch_ad1981b, NULL },
112{ 0x41445375, 0xffffffff, "AD1985", patch_ad1985, NULL },
113{ 0x41445378, 0xffffffff, "AD1986", patch_ad1985, NULL },
114{ 0x414c4300, 0xffffff00, "ALC100,100P", NULL, NULL },
115{ 0x414c4710, 0xfffffff0, "ALC200,200P", NULL, NULL },
116{ 0x414c4721, 0xffffffff, "ALC650D", NULL, NULL }, /* already patched */
117{ 0x414c4722, 0xffffffff, "ALC650E", NULL, NULL }, /* already patched */
118{ 0x414c4723, 0xffffffff, "ALC650F", NULL, NULL }, /* already patched */
119{ 0x414c4720, 0xfffffff0, "ALC650", patch_alc650, NULL },
120{ 0x414c4760, 0xfffffff0, "ALC655", patch_alc655, NULL },
a5022b0d 121{ 0x414c4781, 0xffffffff, "ALC658D", NULL, NULL }, /* already patched */
1da177e4
LT		 122{ 0x414c4780, 0xfffffff0, "ALC658", patch_alc655, NULL },
123{ 0x414c4790, 0xfffffff0, "ALC850", patch_alc850, NULL },
124{ 0x414c4730, 0xffffffff, "ALC101", NULL, NULL },
125{ 0x414c4740, 0xfffffff0, "ALC202", NULL, NULL },
126{ 0x414c4750, 0xfffffff0, "ALC250", NULL, NULL },
127{ 0x414c4770, 0xfffffff0, "ALC203", NULL, NULL },
128{ 0x434d4941, 0xffffffff, "CMI9738", patch_cm9738, NULL },
129{ 0x434d4961, 0xffffffff, "CMI9739", patch_cm9739, NULL },
5f0dccf8 130{ 0x434d4969, 0xffffffff, "CMI9780", patch_cm9780, NULL },
1da177e4
LT		 131{ 0x434d4978, 0xffffffff, "CMI9761", patch_cm9761, NULL },
132{ 0x434d4982, 0xffffffff, "CMI9761", patch_cm9761, NULL },
133{ 0x434d4983, 0xffffffff, "CMI9761", patch_cm9761, NULL },
134{ 0x43525900, 0xfffffff8, "CS4297", NULL, NULL },
135{ 0x43525910, 0xfffffff8, "CS4297A", patch_cirrus_spdif, NULL },
136{ 0x43525920, 0xfffffff8, "CS4298", patch_cirrus_spdif, NULL },
137{ 0x43525928, 0xfffffff8, "CS4294", NULL, NULL },
138{ 0x43525930, 0xfffffff8, "CS4299", patch_cirrus_cs4299, NULL },
139{ 0x43525948, 0xfffffff8, "CS4201", NULL, NULL },
140{ 0x43525958, 0xfffffff8, "CS4205", patch_cirrus_spdif, NULL },
141{ 0x43525960, 0xfffffff8, "CS4291", NULL, NULL },
142{ 0x43525970, 0xfffffff8, "CS4202", NULL, NULL },
143{ 0x43585421, 0xffffffff, "HSD11246", NULL, NULL }, // SmartMC II
144{ 0x43585428, 0xfffffff8, "Cx20468", patch_conexant, NULL }, // SmartAMC fixme: the mask might be different
145{ 0x44543031, 0xfffffff0, "DT0398", NULL, NULL },
9398441e 146{ 0x454d4328, 0xffffffff, "EM28028", NULL, NULL }, // same as TR28028?
1da177e4
LT		 147{ 0x45838308, 0xffffffff, "ESS1988", NULL, NULL },
148{ 0x48525300, 0xffffff00, "HMP9701", NULL, NULL },
149{ 0x49434501, 0xffffffff, "ICE1230", NULL, NULL },
150{ 0x49434511, 0xffffffff, "ICE1232", NULL, NULL }, // alias VIA VT1611A?
151{ 0x49434514, 0xffffffff, "ICE1232A", NULL, NULL },
152{ 0x49434551, 0xffffffff, "VT1616", patch_vt1616, NULL },
153{ 0x49434552, 0xffffffff, "VT1616i", patch_vt1616, NULL }, // VT1616 compatible (chipset integrated)
154{ 0x49544520, 0xffffffff, "IT2226E", NULL, NULL },
155{ 0x49544561, 0xffffffff, "IT2646E", patch_it2646, NULL },
156{ 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL, NULL }, // only guess --jk
157{ 0x4e534331, 0xffffffff, "LM4549", NULL, NULL },
ba22429d 158{ 0x4e534350, 0xffffffff, "LM4550", patch_lm4550, NULL }, // volume wrap fix
82466ad7 159{ 0x50534304, 0xffffffff, "UCB1400", patch_ucb1400, NULL },
87d61c29 160{ 0x53494c20, 0xffffffe0, "Si3036,8", mpatch_si3036, mpatch_si3036, AC97_MODEM_PATCH },
1da177e4
LT		 161{ 0x54524102, 0xffffffff, "TR28022", NULL, NULL },
162{ 0x54524106, 0xffffffff, "TR28026", NULL, NULL },
163{ 0x54524108, 0xffffffff, "TR28028", patch_tritech_tr28028, NULL }, // added by xin jin [07/09/99]
164{ 0x54524123, 0xffffffff, "TR28602", NULL, NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
165{ 0x54584e20, 0xffffffff, "TLC320AD9xC", NULL, NULL },
166{ 0x56494161, 0xffffffff, "VIA1612A", NULL, NULL }, // modified ICE1232 with S/PDIF
4b499486 167{ 0x56494170, 0xffffffff, "VIA1617A", patch_vt1617a, NULL }, // modified VT1616 with S/PDIF
73864fc6 168{ 0x56494182, 0xffffffff, "VIA1618", NULL, NULL },
1da177e4
LT		 169{ 0x57454301, 0xffffffff, "W83971D", NULL, NULL },
170{ 0x574d4c00, 0xffffffff, "WM9701A", NULL, NULL },
171{ 0x574d4C03, 0xffffffff, "WM9703,WM9707,WM9708,WM9717", patch_wolfson03, NULL},
172{ 0x574d4C04, 0xffffffff, "WM9704M,WM9704Q", patch_wolfson04, NULL},
173{ 0x574d4C05, 0xffffffff, "WM9705,WM9710", patch_wolfson05, NULL},
174{ 0x574d4C09, 0xffffffff, "WM9709", NULL, NULL},
175{ 0x574d4C12, 0xffffffff, "WM9711,WM9712", patch_wolfson11, NULL},
176{ 0x574d4c13, 0xffffffff, "WM9713,WM9714", patch_wolfson13, NULL, AC97_DEFAULT_POWER_OFF},
177{ 0x594d4800, 0xffffffff, "YMF743", NULL, NULL },
178{ 0x594d4802, 0xffffffff, "YMF752", NULL, NULL },
179{ 0x594d4803, 0xffffffff, "YMF753", patch_yamaha_ymf753, NULL },
180{ 0x83847600, 0xffffffff, "STAC9700,83,84", patch_sigmatel_stac9700, NULL },
181{ 0x83847604, 0xffffffff, "STAC9701,3,4,5", NULL, NULL },
182{ 0x83847605, 0xffffffff, "STAC9704", NULL, NULL },
183{ 0x83847608, 0xffffffff, "STAC9708,11", patch_sigmatel_stac9708, NULL },
184{ 0x83847609, 0xffffffff, "STAC9721,23", patch_sigmatel_stac9721, NULL },
185{ 0x83847644, 0xffffffff, "STAC9744", patch_sigmatel_stac9744, NULL },
186{ 0x83847650, 0xffffffff, "STAC9750,51", NULL, NULL }, // patch?
187{ 0x83847652, 0xffffffff, "STAC9752,53", NULL, NULL }, // patch?
188{ 0x83847656, 0xffffffff, "STAC9756,57", patch_sigmatel_stac9756, NULL },
189{ 0x83847658, 0xffffffff, "STAC9758,59", patch_sigmatel_stac9758, NULL },
190{ 0x83847666, 0xffffffff, "STAC9766,67", NULL, NULL }, // patch?
191{ 0, 0, NULL, NULL, NULL }
192};
193
1da177e4 194
6dbe6628
TI		 195static void update_power_regs(struct snd_ac97 *ac97);
196
1da177e4
LT		 197/*
198 * I/O routines
199 */
200
ee42381e 201static int snd_ac97_valid_reg(struct snd_ac97 *ac97, unsigned short reg)
1da177e4 202{
1da177e4
LT		 203 /* filter some registers for buggy codecs */
204 switch (ac97->id) {
205 case AC97_ID_AK4540:
206 case AC97_ID_AK4542:
207 if (reg <= 0x1c || reg == 0x20 || reg == 0x26 || reg >= 0x7c)
208 return 1;
209 return 0;
210 case AC97_ID_AD1819: /* AD1819 */
211 case AC97_ID_AD1881: /* AD1881 */
212 case AC97_ID_AD1881A: /* AD1881A */
213 if (reg >= 0x3a && reg <= 0x6e) /* 0x59 */
214 return 0;
215 return 1;
216 case AC97_ID_AD1885: /* AD1885 */
217 case AC97_ID_AD1886: /* AD1886 */
218 case AC97_ID_AD1886A: /* AD1886A - !!verify!! --jk */
219 case AC97_ID_AD1887: /* AD1887 - !!verify!! --jk */
220 if (reg == 0x5a)
221 return 1;
222 if (reg >= 0x3c && reg <= 0x6e) /* 0x59 */
223 return 0;
224 return 1;
225 case AC97_ID_STAC9700:
226 case AC97_ID_STAC9704:
227 case AC97_ID_STAC9705:
228 case AC97_ID_STAC9708:
229 case AC97_ID_STAC9721:
230 case AC97_ID_STAC9744:
231 case AC97_ID_STAC9756:
232 if (reg <= 0x3a || reg >= 0x5a)
233 return 1;
234 return 0;
235 }
236 return 1;
237}
238
239/**
240 * snd_ac97_write - write a value on the given register
241 * @ac97: the ac97 instance
242 * @reg: the register to change
243 * @value: the value to set
244 *
245 * Writes a value on the given register. This will invoke the write
246 * callback directly after the register check.
247 * This function doesn't change the register cache unlike
248 * #snd_ca97_write_cache(), so use this only when you don't want to
249 * reflect the change to the suspend/resume state.
250 */
ee42381e 251void snd_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
1da177e4
LT		 252{
253 if (!snd_ac97_valid_reg(ac97, reg))
254 return;
255 if ((ac97->id & 0xffffff00) == AC97_ID_ALC100) {
256 /* Fix H/W bug of ALC100/100P */
257 if (reg == AC97_MASTER || reg == AC97_HEADPHONE)
258 ac97->bus->ops->write(ac97, AC97_RESET, 0); /* reset audio codec */
259 }
260 ac97->bus->ops->write(ac97, reg, value);
261}
262
7b09679c
TI		 263EXPORT_SYMBOL(snd_ac97_write);
264
1da177e4
LT		 265/**
266 * snd_ac97_read - read a value from the given register
267 *
268 * @ac97: the ac97 instance
269 * @reg: the register to read
270 *
271 * Reads a value from the given register. This will invoke the read
272 * callback directly after the register check.
273 *
274 * Returns the read value.
275 */
ee42381e 276unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
1da177e4
LT		 277{
278 if (!snd_ac97_valid_reg(ac97, reg))
279 return 0;
280 return ac97->bus->ops->read(ac97, reg);
281}
282
283/* read a register - return the cached value if already read */
ee42381e 284static inline unsigned short snd_ac97_read_cache(struct snd_ac97 *ac97, unsigned short reg)
1da177e4
LT		 285{
286 if (! test_bit(reg, ac97->reg_accessed)) {
287 ac97->regs[reg] = ac97->bus->ops->read(ac97, reg);
288 // set_bit(reg, ac97->reg_accessed);
289 }
290 return ac97->regs[reg];
291}
292
7b09679c
TI		 293EXPORT_SYMBOL(snd_ac97_read);
294
1da177e4
LT		 295/**
296 * snd_ac97_write_cache - write a value on the given register and update the cache
297 * @ac97: the ac97 instance
298 * @reg: the register to change
299 * @value: the value to set
300 *
301 * Writes a value on the given register and updates the register
302 * cache. The cached values are used for the cached-read and the
303 * suspend/resume.
304 */
ee42381e 305void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
1da177e4
LT		 306{
307 if (!snd_ac97_valid_reg(ac97, reg))
308 return;
62932df8 309 mutex_lock(&ac97->reg_mutex);
1da177e4
LT		 310 ac97->regs[reg] = value;
311 ac97->bus->ops->write(ac97, reg, value);
312 set_bit(reg, ac97->reg_accessed);
62932df8 313 mutex_unlock(&ac97->reg_mutex);
1da177e4
LT		 314}
315
7b09679c
TI		 316EXPORT_SYMBOL(snd_ac97_write_cache);
317
1da177e4
LT		 318/**
319 * snd_ac97_update - update the value on the given register
320 * @ac97: the ac97 instance
321 * @reg: the register to change
322 * @value: the value to set
323 *
324 * Compares the value with the register cache and updates the value
325 * only when the value is changed.
326 *
327 * Returns 1 if the value is changed, 0 if no change, or a negative
328 * code on failure.
329 */
ee42381e 330int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
1da177e4
LT		 331{
332 int change;
333
334 if (!snd_ac97_valid_reg(ac97, reg))
335 return -EINVAL;
62932df8 336 mutex_lock(&ac97->reg_mutex);
1da177e4
LT		 337 change = ac97->regs[reg] != value;
338 if (change) {
339 ac97->regs[reg] = value;
340 ac97->bus->ops->write(ac97, reg, value);
341 }
52b72388 342 set_bit(reg, ac97->reg_accessed);
62932df8 343 mutex_unlock(&ac97->reg_mutex);
1da177e4
LT		 344 return change;
345}
346
7b09679c
TI		 347EXPORT_SYMBOL(snd_ac97_update);
348
1da177e4
LT		 349/**
350 * snd_ac97_update_bits - update the bits on the given register
351 * @ac97: the ac97 instance
352 * @reg: the register to change
353 * @mask: the bit-mask to change
354 * @value: the value to set
355 *
356 * Updates the masked-bits on the given register only when the value
357 * is changed.
358 *
359 * Returns 1 if the bits are changed, 0 if no change, or a negative
360 * code on failure.
361 */
ee42381e 362int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value)
1da177e4
LT		 363{
364 int change;
365
366 if (!snd_ac97_valid_reg(ac97, reg))
367 return -EINVAL;
62932df8 368 mutex_lock(&ac97->reg_mutex);
1da177e4 369 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
62932df8 370 mutex_unlock(&ac97->reg_mutex);
1da177e4
LT		 371 return change;
372}
373
7b09679c
TI		 374EXPORT_SYMBOL(snd_ac97_update_bits);
375
1da177e4 376/* no lock version - see snd_ac97_updat_bits() */
ee42381e 377int snd_ac97_update_bits_nolock(struct snd_ac97 *ac97, unsigned short reg,
1da177e4
LT		 378 unsigned short mask, unsigned short value)
379{
380 int change;
381 unsigned short old, new;
382
383 old = snd_ac97_read_cache(ac97, reg);
384 new = (old & ~mask) | value;
385 change = old != new;
386 if (change) {
387 ac97->regs[reg] = new;
388 ac97->bus->ops->write(ac97, reg, new);
389 }
52b72388 390 set_bit(reg, ac97->reg_accessed);
1da177e4
LT		 391 return change;
392}
393
ee42381e 394static int snd_ac97_ad18xx_update_pcm_bits(struct snd_ac97 *ac97, int codec, unsigned short mask, unsigned short value)
1da177e4
LT		 395{
396 int change;
397 unsigned short old, new, cfg;
398
62932df8 399 mutex_lock(&ac97->page_mutex);
1da177e4
LT		 400 old = ac97->spec.ad18xx.pcmreg[codec];
401 new = (old & ~mask) | value;
402 change = old != new;
403 if (change) {
62932df8 404 mutex_lock(&ac97->reg_mutex);
1da177e4
LT		 405 cfg = snd_ac97_read_cache(ac97, AC97_AD_SERIAL_CFG);
406 ac97->spec.ad18xx.pcmreg[codec] = new;
407 /* select single codec */
408 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
409 (cfg & ~0x7000) |
410 ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
411 /* update PCM bits */
412 ac97->bus->ops->write(ac97, AC97_PCM, new);
413 /* select all codecs */
414 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
415 cfg | 0x7000);
62932df8 416 mutex_unlock(&ac97->reg_mutex);
1da177e4 417 }
62932df8 418 mutex_unlock(&ac97->page_mutex);
1da177e4
LT		 419 return change;
420}
421
422/*
423 * Controls
424 */
425
ee42381e 426int snd_ac97_info_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 427{
428 struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
429
430 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
431 uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
432 uinfo->value.enumerated.items = e->mask;
433
434 if (uinfo->value.enumerated.item > e->mask - 1)
435 uinfo->value.enumerated.item = e->mask - 1;
436 strcpy(uinfo->value.enumerated.name, e->texts[uinfo->value.enumerated.item]);
437 return 0;
438}
439
ee42381e 440int snd_ac97_get_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 441{
ee42381e 442 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
1da177e4 443 struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
5f0dccf8 444 unsigned short val, bitmask;
1da177e4 445
b16760bb 446 for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
5f0dccf8 447 ;
1da177e4 448 val = snd_ac97_read_cache(ac97, e->reg);
5f0dccf8 449 ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
1da177e4 450 if (e->shift_l != e->shift_r)
5f0dccf8 451 ucontrol->value.enumerated.item[1] = (val >> e->shift_r) & (bitmask - 1);
1da177e4
LT		 452
453 return 0;
454}
455
ee42381e 456int snd_ac97_put_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 457{
ee42381e 458 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 459 struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
460 unsigned short val;
5f0dccf8 461 unsigned short mask, bitmask;
1da177e4 462
b16760bb 463 for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
5f0dccf8 464 ;
1da177e4
LT		 465 if (ucontrol->value.enumerated.item[0] > e->mask - 1)
466 return -EINVAL;
467 val = ucontrol->value.enumerated.item[0] << e->shift_l;
5f0dccf8 468 mask = (bitmask - 1) << e->shift_l;
1da177e4
LT		 469 if (e->shift_l != e->shift_r) {
470 if (ucontrol->value.enumerated.item[1] > e->mask - 1)
471 return -EINVAL;
472 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
5f0dccf8 473 mask |= (bitmask - 1) << e->shift_r;
1da177e4
LT		 474 }
475 return snd_ac97_update_bits(ac97, e->reg, mask, val);
476}
477
478/* save/restore ac97 v2.3 paging */
ee42381e 479static int snd_ac97_page_save(struct snd_ac97 *ac97, int reg, struct snd_kcontrol *kcontrol)
1da177e4
LT		 480{
481 int page_save = -1;
482 if ((kcontrol->private_value & (1<<25)) &&
483 (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23 &&
484 (reg >= 0x60 && reg < 0x70)) {
485 unsigned short page = (kcontrol->private_value >> 26) & 0x0f;
62932df8 486 mutex_lock(&ac97->page_mutex); /* lock paging */
1da177e4
LT		 487 page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
488 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
489 }
490 return page_save;
491}
492
ee42381e 493static void snd_ac97_page_restore(struct snd_ac97 *ac97, int page_save)
1da177e4
LT		 494{
495 if (page_save >= 0) {
496 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
62932df8 497 mutex_unlock(&ac97->page_mutex); /* unlock paging */
1da177e4
LT		 498 }
499}
500
501/* volume and switch controls */
ee42381e 502int snd_ac97_info_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 503{
504 int mask = (kcontrol->private_value >> 16) & 0xff;
505 int shift = (kcontrol->private_value >> 8) & 0x0f;
506 int rshift = (kcontrol->private_value >> 12) & 0x0f;
507
508 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
509 uinfo->count = shift == rshift ? 1 : 2;
510 uinfo->value.integer.min = 0;
511 uinfo->value.integer.max = mask;
512 return 0;
513}
514
ee42381e 515int snd_ac97_get_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 516{
ee42381e 517 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 518 int reg = kcontrol->private_value & 0xff;
519 int shift = (kcontrol->private_value >> 8) & 0x0f;
520 int rshift = (kcontrol->private_value >> 12) & 0x0f;
521 int mask = (kcontrol->private_value >> 16) & 0xff;
522 int invert = (kcontrol->private_value >> 24) & 0x01;
523 int page_save;
524
525 page_save = snd_ac97_page_save(ac97, reg, kcontrol);
526 ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift) & mask;
527 if (shift != rshift)
528 ucontrol->value.integer.value[1] = (snd_ac97_read_cache(ac97, reg) >> rshift) & mask;
529 if (invert) {
530 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
531 if (shift != rshift)
532 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
533 }
534 snd_ac97_page_restore(ac97, page_save);
535 return 0;
536}
537
ee42381e 538int snd_ac97_put_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 539{
ee42381e 540 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 541 int reg = kcontrol->private_value & 0xff;
542 int shift = (kcontrol->private_value >> 8) & 0x0f;
543 int rshift = (kcontrol->private_value >> 12) & 0x0f;
544 int mask = (kcontrol->private_value >> 16) & 0xff;
545 int invert = (kcontrol->private_value >> 24) & 0x01;
546 int err, page_save;
547 unsigned short val, val2, val_mask;
548
549 page_save = snd_ac97_page_save(ac97, reg, kcontrol);
550 val = (ucontrol->value.integer.value[0] & mask);
551 if (invert)
552 val = mask - val;
553 val_mask = mask << shift;
554 val = val << shift;
555 if (shift != rshift) {
556 val2 = (ucontrol->value.integer.value[1] & mask);
557 if (invert)
558 val2 = mask - val2;
559 val_mask |= mask << rshift;
560 val |= val2 << rshift;
561 }
562 err = snd_ac97_update_bits(ac97, reg, val_mask, val);
563 snd_ac97_page_restore(ac97, page_save);
6dbe6628
TI		 564#ifdef CONFIG_SND_AC97_POWER_SAVE
565 /* check analog mixer power-down */
566 if ((val_mask & 0x8000) &&
567 (kcontrol->private_value & (1<<30))) {
568 if (val & 0x8000)
569 ac97->power_up &= ~(1 << (reg>>1));
570 else
571 ac97->power_up |= 1 << (reg>>1);
572 if (power_save)
573 update_power_regs(ac97);
574 }
575#endif
1da177e4
LT		 576 return err;
577}
578
ee42381e 579static const struct snd_kcontrol_new snd_ac97_controls_master_mono[2] = {
1da177e4
LT		 580AC97_SINGLE("Master Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
581AC97_SINGLE("Master Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1)
582};
583
ee42381e 584static const struct snd_kcontrol_new snd_ac97_controls_tone[2] = {
1da177e4
LT		 585AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1),
586AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1)
587};
588
ee42381e 589static const struct snd_kcontrol_new snd_ac97_controls_pc_beep[2] = {
1da177e4
LT		 590AC97_SINGLE("PC Speaker Playback Switch", AC97_PC_BEEP, 15, 1, 1),
591AC97_SINGLE("PC Speaker Playback Volume", AC97_PC_BEEP, 1, 15, 1)
592};
593
ee42381e 594static const struct snd_kcontrol_new snd_ac97_controls_mic_boost =
7931e2a9 595 AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0);
1da177e4
LT		 596
597
598static const char* std_rec_sel[] = {"Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone"};
599static const char* std_3d_path[] = {"pre 3D", "post 3D"};
600static const char* std_mix[] = {"Mix", "Mic"};
601static const char* std_mic[] = {"Mic1", "Mic2"};
602
603static const struct ac97_enum std_enum[] = {
604AC97_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, std_rec_sel),
605AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, std_3d_path),
606AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, std_mix),
607AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, std_mic),
608};
609
ee42381e 610static const struct snd_kcontrol_new snd_ac97_control_capture_src =
1da177e4
LT		 611AC97_ENUM("Capture Source", std_enum[0]);
612
ee42381e 613static const struct snd_kcontrol_new snd_ac97_control_capture_vol =
1da177e4
LT		 614AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0);
615
ee42381e 616static const struct snd_kcontrol_new snd_ac97_controls_mic_capture[2] = {
1da177e4
LT		 617AC97_SINGLE("Mic Capture Switch", AC97_REC_GAIN_MIC, 15, 1, 1),
618AC97_SINGLE("Mic Capture Volume", AC97_REC_GAIN_MIC, 0, 15, 0)
619};
620
ee42381e 621enum {
1da177e4
LT		 622 AC97_GENERAL_PCM_OUT = 0,
623 AC97_GENERAL_STEREO_ENHANCEMENT,
624 AC97_GENERAL_3D,
625 AC97_GENERAL_LOUDNESS,
626 AC97_GENERAL_MONO,
627 AC97_GENERAL_MIC,
628 AC97_GENERAL_LOOPBACK
ee42381e 629};
1da177e4 630
ee42381e 631static const struct snd_kcontrol_new snd_ac97_controls_general[7] = {
1da177e4
LT		 632AC97_ENUM("PCM Out Path & Mute", std_enum[1]),
633AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0),
634AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
635AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0),
636AC97_ENUM("Mono Output Select", std_enum[2]),
7931e2a9 637AC97_ENUM("Mic Select", std_enum[3]),
1da177e4
LT		 638AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0)
639};
640
ee42381e 641const struct snd_kcontrol_new snd_ac97_controls_3d[2] = {
1da177e4
LT		 642AC97_SINGLE("3D Control - Center", AC97_3D_CONTROL, 8, 15, 0),
643AC97_SINGLE("3D Control - Depth", AC97_3D_CONTROL, 0, 15, 0)
644};
645
ee42381e 646static const struct snd_kcontrol_new snd_ac97_controls_center[2] = {
1da177e4
LT		 647AC97_SINGLE("Center Playback Switch", AC97_CENTER_LFE_MASTER, 7, 1, 1),
648AC97_SINGLE("Center Playback Volume", AC97_CENTER_LFE_MASTER, 0, 31, 1)
649};
650
ee42381e 651static const struct snd_kcontrol_new snd_ac97_controls_lfe[2] = {
1da177e4
LT		 652AC97_SINGLE("LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 1, 1),
653AC97_SINGLE("LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 31, 1)
654};
655
ee42381e 656static const struct snd_kcontrol_new snd_ac97_control_eapd =
1da177e4
LT		 657AC97_SINGLE("External Amplifier", AC97_POWERDOWN, 15, 1, 1);
658
ee42381e 659static const struct snd_kcontrol_new snd_ac97_controls_modem_switches[2] = {
87d61c29
SK		 660AC97_SINGLE("Off-hook Switch", AC97_GPIO_STATUS, 0, 1, 0),
661AC97_SINGLE("Caller ID Switch", AC97_GPIO_STATUS, 2, 1, 0)
662};
663
1da177e4 664/* change the existing EAPD control as inverted */
ee42381e 665static void set_inv_eapd(struct snd_ac97 *ac97, struct snd_kcontrol *kctl)
1da177e4
LT		 666{
667 kctl->private_value = AC97_SINGLE_VALUE(AC97_POWERDOWN, 15, 1, 0);
668 snd_ac97_update_bits(ac97, AC97_POWERDOWN, (1<<15), (1<<15)); /* EAPD up */
669 ac97->scaps |= AC97_SCAP_INV_EAPD;
670}
671
ee42381e 672static int snd_ac97_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 673{
674 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
675 uinfo->count = 1;
676 return 0;
677}
678
ee42381e 679static int snd_ac97_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 680{
681 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
682 IEC958_AES0_NONAUDIO |
683 IEC958_AES0_CON_EMPHASIS_5015 |
684 IEC958_AES0_CON_NOT_COPYRIGHT;
685 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
686 IEC958_AES1_CON_ORIGINAL;
687 ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
688 return 0;
689}
690
ee42381e 691static int snd_ac97_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 692{
693 /* FIXME: AC'97 spec doesn't say which bits are used for what */
694 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
695 IEC958_AES0_NONAUDIO |
696 IEC958_AES0_PRO_FS |
697 IEC958_AES0_PRO_EMPHASIS_5015;
698 return 0;
699}
700
ee42381e 701static int snd_ac97_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 702{
ee42381e 703 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
1da177e4 704
62932df8 705 mutex_lock(&ac97->reg_mutex);
1da177e4
LT		 706 ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff;
707 ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff;
708 ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff;
709 ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff;
62932df8 710 mutex_unlock(&ac97->reg_mutex);
1da177e4
LT		 711 return 0;
712}
713
ee42381e 714static int snd_ac97_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 715{
ee42381e 716 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 717 unsigned int new = 0;
718 unsigned short val = 0;
719 int change;
720
721 new = val = ucontrol->value.iec958.status[0] & (IEC958_AES0_PROFESSIONAL|IEC958_AES0_NONAUDIO);
722 if (ucontrol->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL) {
723 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_PRO_FS|IEC958_AES0_PRO_EMPHASIS_5015);
724 switch (new & IEC958_AES0_PRO_FS) {
725 case IEC958_AES0_PRO_FS_44100: val |= 0<<12; break;
726 case IEC958_AES0_PRO_FS_48000: val |= 2<<12; break;
727 case IEC958_AES0_PRO_FS_32000: val |= 3<<12; break;
728 default: val |= 1<<12; break;
729 }
730 if ((new & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
731 val |= 1<<3;
732 } else {
733 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT);
734 new |= ((ucontrol->value.iec958.status[1] & (IEC958_AES1_CON_CATEGORY|IEC958_AES1_CON_ORIGINAL)) << 8);
735 new |= ((ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) << 24);
736 if ((new & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
737 val |= 1<<3;
738 if (!(new & IEC958_AES0_CON_NOT_COPYRIGHT))
739 val |= 1<<2;
740 val |= ((new >> 8) & 0xff) << 4; // category + original
741 switch ((new >> 24) & 0xff) {
742 case IEC958_AES3_CON_FS_44100: val |= 0<<12; break;
743 case IEC958_AES3_CON_FS_48000: val |= 2<<12; break;
744 case IEC958_AES3_CON_FS_32000: val |= 3<<12; break;
745 default: val |= 1<<12; break;
746 }
747 }
748
62932df8 749 mutex_lock(&ac97->reg_mutex);
1da177e4
LT		 750 change = ac97->spdif_status != new;
751 ac97->spdif_status = new;
752
753 if (ac97->flags & AC97_CS_SPDIF) {
754 int x = (val >> 12) & 0x03;
755 switch (x) {
756 case 0: x = 1; break; // 44.1
757 case 2: x = 0; break; // 48.0
758 default: x = 0; break; // illegal.
759 }
760 change |= snd_ac97_update_bits_nolock(ac97, AC97_CSR_SPDIF, 0x3fff, ((val & 0xcfff) | (x << 12)));
761 } else if (ac97->flags & AC97_CX_SPDIF) {
762 int v;
763 v = new & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT) ? 0 : AC97_CXR_COPYRGT;
764 v |= new & IEC958_AES0_NONAUDIO ? AC97_CXR_SPDIF_AC3 : AC97_CXR_SPDIF_PCM;
765 change |= snd_ac97_update_bits_nolock(ac97, AC97_CXR_AUDIO_MISC,
766 AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT,
767 v);
768 } else {
769 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
770 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
771
772 change |= snd_ac97_update_bits_nolock(ac97, AC97_SPDIF, 0x3fff, val);
773 if (extst & AC97_EA_SPDIF) {
774 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
775 }
776 }
62932df8 777 mutex_unlock(&ac97->reg_mutex);
1da177e4
LT		 778
779 return change;
780}
781
ee42381e 782static int snd_ac97_put_spsa(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 783{
ee42381e 784 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 785 int reg = kcontrol->private_value & 0xff;
786 int shift = (kcontrol->private_value >> 8) & 0xff;
787 int mask = (kcontrol->private_value >> 16) & 0xff;
788 // int invert = (kcontrol->private_value >> 24) & 0xff;
789 unsigned short value, old, new;
790 int change;
791
792 value = (ucontrol->value.integer.value[0] & mask);
793
62932df8 794 mutex_lock(&ac97->reg_mutex);
1da177e4
LT		 795 mask <<= shift;
796 value <<= shift;
797 old = snd_ac97_read_cache(ac97, reg);
798 new = (old & ~mask) | value;
799 change = old != new;
800
801 if (change) {
802 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
803 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
804 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
805 if (extst & AC97_EA_SPDIF)
806 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
807 }
62932df8 808 mutex_unlock(&ac97->reg_mutex);
1da177e4
LT		 809 return change;
810}
811
ee42381e 812const struct snd_kcontrol_new snd_ac97_controls_spdif[5] = {
1da177e4
LT		 813 {
814 .access = SNDRV_CTL_ELEM_ACCESS_READ,
815 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
816 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
817 .info = snd_ac97_spdif_mask_info,
818 .get = snd_ac97_spdif_cmask_get,
819 },
820 {
821 .access = SNDRV_CTL_ELEM_ACCESS_READ,
822 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
823 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
824 .info = snd_ac97_spdif_mask_info,
825 .get = snd_ac97_spdif_pmask_get,
826 },
827 {
828 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
829 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
830 .info = snd_ac97_spdif_mask_info,
831 .get = snd_ac97_spdif_default_get,
832 .put = snd_ac97_spdif_default_put,
833 },
834
835 AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),AC97_EXTENDED_STATUS, 2, 1, 0),
836 {
837 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
838 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA",
839 .info = snd_ac97_info_volsw,
840 .get = snd_ac97_get_volsw,
841 .put = snd_ac97_put_spsa,
842 .private_value = AC97_SINGLE_VALUE(AC97_EXTENDED_STATUS, 4, 3, 0)
843 },
844};
845
846#define AD18XX_PCM_BITS(xname, codec, lshift, rshift, mask) \
847{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_bits, \
848 .get = snd_ac97_ad18xx_pcm_get_bits, .put = snd_ac97_ad18xx_pcm_put_bits, \
849 .private_value = (codec) | ((lshift) << 8) | ((rshift) << 12) | ((mask) << 16) }
850
ee42381e 851static int snd_ac97_ad18xx_pcm_info_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4 852{
ee42381e 853 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 854 int mask = (kcontrol->private_value >> 16) & 0x0f;
855 int lshift = (kcontrol->private_value >> 8) & 0x0f;
856 int rshift = (kcontrol->private_value >> 12) & 0x0f;
857
858 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
859 if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
860 uinfo->count = 2;
861 else
862 uinfo->count = 1;
863 uinfo->value.integer.min = 0;
864 uinfo->value.integer.max = mask;
865 return 0;
866}
867
ee42381e 868static int snd_ac97_ad18xx_pcm_get_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 869{
ee42381e 870 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 871 int codec = kcontrol->private_value & 3;
872 int lshift = (kcontrol->private_value >> 8) & 0x0f;
873 int rshift = (kcontrol->private_value >> 12) & 0x0f;
874 int mask = (kcontrol->private_value >> 16) & 0xff;
875
876 ucontrol->value.integer.value[0] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> lshift) & mask);
877 if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
878 ucontrol->value.integer.value[1] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> rshift) & mask);
879 return 0;
880}
881
ee42381e 882static int snd_ac97_ad18xx_pcm_put_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 883{
ee42381e 884 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 885 int codec = kcontrol->private_value & 3;
886 int lshift = (kcontrol->private_value >> 8) & 0x0f;
887 int rshift = (kcontrol->private_value >> 12) & 0x0f;
888 int mask = (kcontrol->private_value >> 16) & 0xff;
889 unsigned short val, valmask;
890
891 val = (mask - (ucontrol->value.integer.value[0] & mask)) << lshift;
892 valmask = mask << lshift;
893 if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) {
894 val |= (mask - (ucontrol->value.integer.value[1] & mask)) << rshift;
895 valmask |= mask << rshift;
896 }
897 return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, valmask, val);
898}
899
900#define AD18XX_PCM_VOLUME(xname, codec) \
901{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_volume, \
902 .get = snd_ac97_ad18xx_pcm_get_volume, .put = snd_ac97_ad18xx_pcm_put_volume, \
903 .private_value = codec }
904
ee42381e 905static int snd_ac97_ad18xx_pcm_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 906{
907 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
908 uinfo->count = 2;
909 uinfo->value.integer.min = 0;
910 uinfo->value.integer.max = 31;
911 return 0;
912}
913
ee42381e 914static int snd_ac97_ad18xx_pcm_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 915{
ee42381e 916 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 917 int codec = kcontrol->private_value & 3;
918
62932df8 919 mutex_lock(&ac97->page_mutex);
1da177e4
LT		 920 ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
921 ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
62932df8 922 mutex_unlock(&ac97->page_mutex);
1da177e4
LT		 923 return 0;
924}
925
ee42381e 926static int snd_ac97_ad18xx_pcm_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 927{
ee42381e 928 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 929 int codec = kcontrol->private_value & 3;
930 unsigned short val1, val2;
931
932 val1 = 31 - (ucontrol->value.integer.value[0] & 31);
933 val2 = 31 - (ucontrol->value.integer.value[1] & 31);
934 return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, 0x1f1f, (val1 << 8) | val2);
935}
936
ee42381e 937static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_pcm[2] = {
1da177e4
LT		 938AD18XX_PCM_BITS("PCM Playback Switch", 0, 15, 7, 1),
939AD18XX_PCM_VOLUME("PCM Playback Volume", 0)
940};
941
ee42381e 942static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_surround[2] = {
1da177e4
LT		 943AD18XX_PCM_BITS("Surround Playback Switch", 1, 15, 7, 1),
944AD18XX_PCM_VOLUME("Surround Playback Volume", 1)
945};
946
ee42381e 947static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_center[2] = {
1da177e4
LT		 948AD18XX_PCM_BITS("Center Playback Switch", 2, 15, 15, 1),
949AD18XX_PCM_BITS("Center Playback Volume", 2, 8, 8, 31)
950};
951
ee42381e 952static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_lfe[2] = {
1da177e4
LT		 953AD18XX_PCM_BITS("LFE Playback Switch", 2, 7, 7, 1),
954AD18XX_PCM_BITS("LFE Playback Volume", 2, 0, 0, 31)
955};
956
957/*
958 *
959 */
960
ee42381e 961static void snd_ac97_powerdown(struct snd_ac97 *ac97);
1da177e4 962
ee42381e 963static int snd_ac97_bus_free(struct snd_ac97_bus *bus)
1da177e4
LT		 964{
965 if (bus) {
966 snd_ac97_bus_proc_done(bus);
967 kfree(bus->pcms);
968 if (bus->private_free)
969 bus->private_free(bus);
970 kfree(bus);
971 }
972 return 0;
973}
974
ee42381e 975static int snd_ac97_bus_dev_free(struct snd_device *device)
1da177e4 976{
ee42381e 977 struct snd_ac97_bus *bus = device->device_data;
1da177e4
LT		 978 return snd_ac97_bus_free(bus);
979}
980
ee42381e 981static int snd_ac97_free(struct snd_ac97 *ac97)
1da177e4
LT		 982{
983 if (ac97) {
6dbe6628
TI		 984#ifdef CONFIG_SND_AC97_POWER_SAVE
985 if (ac97->power_workq)
986 destroy_workqueue(ac97->power_workq);
987#endif
1da177e4 988 snd_ac97_proc_done(ac97);
2ba71978 989 if (ac97->bus)
1da177e4 990 ac97->bus->codec[ac97->num] = NULL;
1da177e4
LT		 991 if (ac97->private_free)
992 ac97->private_free(ac97);
993 kfree(ac97);
994 }
995 return 0;
996}
997
ee42381e 998static int snd_ac97_dev_free(struct snd_device *device)
1da177e4 999{
ee42381e 1000 struct snd_ac97 *ac97 = device->device_data;
1da177e4
LT		 1001 snd_ac97_powerdown(ac97); /* for avoiding click noises during shut down */
1002 return snd_ac97_free(ac97);
1003}
1004
ee42381e 1005static int snd_ac97_try_volume_mix(struct snd_ac97 * ac97, int reg)
1da177e4
LT		 1006{
1007 unsigned short val, mask = 0x8000;
1008
1009 if (! snd_ac97_valid_reg(ac97, reg))
1010 return 0;
1011
1012 switch (reg) {
1013 case AC97_MASTER_TONE:
1014 return ac97->caps & 0x04 ? 1 : 0;
1015 case AC97_HEADPHONE:
1016 return ac97->caps & 0x10 ? 1 : 0;
1017 case AC97_REC_GAIN_MIC:
1018 return ac97->caps & 0x01 ? 1 : 0;
1019 case AC97_3D_CONTROL:
1020 if (ac97->caps & 0x7c00) {
1021 val = snd_ac97_read(ac97, reg);
1022 /* if nonzero - fixed and we can't set it */
1023 return val == 0;
1024 }
1025 return 0;
1026 case AC97_CENTER_LFE_MASTER: /* center */
1027 if ((ac97->ext_id & AC97_EI_CDAC) == 0)
1028 return 0;
1029 break;
1030 case AC97_CENTER_LFE_MASTER+1: /* lfe */
1031 if ((ac97->ext_id & AC97_EI_LDAC) == 0)
1032 return 0;
1033 reg = AC97_CENTER_LFE_MASTER;
1034 mask = 0x0080;
1035 break;
1036 case AC97_SURROUND_MASTER:
1037 if ((ac97->ext_id & AC97_EI_SDAC) == 0)
1038 return 0;
1039 break;
1040 }
1041
1da177e4
LT		 1042 val = snd_ac97_read(ac97, reg);
1043 if (!(val & mask)) {
1044 /* nothing seems to be here - mute flag is not set */
1045 /* try another test */
1046 snd_ac97_write_cache(ac97, reg, val | mask);
1047 val = snd_ac97_read(ac97, reg);
ee42381e 1048 val = snd_ac97_read(ac97, reg);
1da177e4
LT		 1049 if (!(val & mask))
1050 return 0; /* nothing here */
1051 }
1052 return 1; /* success, useable */
1053}
1054
ee42381e 1055static void check_volume_resolution(struct snd_ac97 *ac97, int reg, unsigned char *lo_max, unsigned char *hi_max)
1da177e4
LT		 1056{
1057 unsigned short cbit[3] = { 0x20, 0x10, 0x01 };
1058 unsigned char max[3] = { 63, 31, 15 };
1059 int i;
1060
50dabc2d
TI		 1061 /* first look up the static resolution table */
1062 if (ac97->res_table) {
1063 const struct snd_ac97_res_table *tbl;
1064 for (tbl = ac97->res_table; tbl->reg; tbl++) {
1065 if (tbl->reg == reg) {
1066 *lo_max = tbl->bits & 0xff;
1067 *hi_max = (tbl->bits >> 8) & 0xff;
1068 return;
1069 }
1070 }
1071 }
1072
1da177e4
LT		 1073 *lo_max = *hi_max = 0;
1074 for (i = 0 ; i < ARRAY_SIZE(cbit); i++) {
1075 unsigned short val;
1076 snd_ac97_write(ac97, reg, 0x8080 | cbit[i] | (cbit[i] << 8));
c9eab129
JCD		 1077 /* Do the read twice due to buffers on some ac97 codecs.
1078 * e.g. The STAC9704 returns exactly what you wrote the the register
1079 * if you read it immediately. This causes the detect routine to fail.
1080 */
1081 val = snd_ac97_read(ac97, reg);
1da177e4 1082 val = snd_ac97_read(ac97, reg);
a2142674 1083 if (! *lo_max && (val & 0x7f) == cbit[i])
1da177e4 1084 *lo_max = max[i];
a2142674 1085 if (! *hi_max && ((val >> 8) & 0x7f) == cbit[i])
1da177e4
LT		 1086 *hi_max = max[i];
1087 if (*lo_max && *hi_max)
1088 break;
1089 }
1090}
1091
ee42381e 1092int snd_ac97_try_bit(struct snd_ac97 * ac97, int reg, int bit)
1da177e4
LT		 1093{
1094 unsigned short mask, val, orig, res;
1095
1096 mask = 1 << bit;
1097 orig = snd_ac97_read(ac97, reg);
1098 val = orig ^ mask;
1099 snd_ac97_write(ac97, reg, val);
1100 res = snd_ac97_read(ac97, reg);
1101 snd_ac97_write_cache(ac97, reg, orig);
1102 return res == val;
1103}
1104
1105/* check the volume resolution of center/lfe */
ee42381e 1106static void snd_ac97_change_volume_params2(struct snd_ac97 * ac97, int reg, int shift, unsigned char *max)
1da177e4
LT		 1107{
1108 unsigned short val, val1;
1109
1110 *max = 63;
1111 val = 0x8080 | (0x20 << shift);
1112 snd_ac97_write(ac97, reg, val);
1113 val1 = snd_ac97_read(ac97, reg);
1114 if (val != val1) {
1115 *max = 31;
1116 }
1117 /* reset volume to zero */
1118 snd_ac97_write_cache(ac97, reg, 0x8080);
1119}
1120
1121static inline int printable(unsigned int x)
1122{
1123 x &= 0xff;
1124 if (x < ' ' || x >= 0x71) {
1125 if (x <= 0x89)
1126 return x - 0x71 + 'A';
1127 return '?';
1128 }
1129 return x;
1130}
1131
ee42381e 1132struct snd_kcontrol *snd_ac97_cnew(const struct snd_kcontrol_new *_template, struct snd_ac97 * ac97)
1da177e4 1133{
ee42381e 1134 struct snd_kcontrol_new template;
1da177e4 1135 memcpy(&template, _template, sizeof(template));
1da177e4
LT		 1136 template.index = ac97->num;
1137 return snd_ctl_new1(&template, ac97);
1138}
1139
1140/*
1141 * create mute switch(es) for normal stereo controls
1142 */
6dbe6628
TI		 1143static int snd_ac97_cmute_new_stereo(struct snd_card *card, char *name, int reg,
1144 int check_stereo, int check_amix,
1145 struct snd_ac97 *ac97)
1da177e4 1146{
ee42381e 1147 struct snd_kcontrol *kctl;
1da177e4
LT		 1148 int err;
1149 unsigned short val, val1, mute_mask;
1150
1151 if (! snd_ac97_valid_reg(ac97, reg))
1152 return 0;
1153
1154 mute_mask = 0x8000;
1155 val = snd_ac97_read(ac97, reg);
1156 if (check_stereo || (ac97->flags & AC97_STEREO_MUTES)) {
1157 /* check whether both mute bits work */
1158 val1 = val | 0x8080;
1159 snd_ac97_write(ac97, reg, val1);
1160 if (val1 == snd_ac97_read(ac97, reg))
1161 mute_mask = 0x8080;
1162 }
1163 if (mute_mask == 0x8080) {
ee42381e 1164 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 15, 7, 1, 1);
6dbe6628
TI		 1165 if (check_amix)
1166 tmp.private_value |= (1 << 30);
1da177e4
LT		 1167 tmp.index = ac97->num;
1168 kctl = snd_ctl_new1(&tmp, ac97);
1169 } else {
ee42381e 1170 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 15, 1, 1);
6dbe6628
TI		 1171 if (check_amix)
1172 tmp.private_value |= (1 << 30);
1da177e4
LT		 1173 tmp.index = ac97->num;
1174 kctl = snd_ctl_new1(&tmp, ac97);
1175 }
1176 err = snd_ctl_add(card, kctl);
1177 if (err < 0)
1178 return err;
1179 /* mute as default */
1180 snd_ac97_write_cache(ac97, reg, val | mute_mask);
1181 return 0;
1182}
1183
1184/*
1185 * create a volume for normal stereo/mono controls
1186 */
ee42381e
TI		 1187static int snd_ac97_cvol_new(struct snd_card *card, char *name, int reg, unsigned int lo_max,
1188 unsigned int hi_max, struct snd_ac97 *ac97)
1da177e4
LT		 1189{
1190 int err;
ee42381e 1191 struct snd_kcontrol *kctl;
1da177e4
LT		 1192
1193 if (! snd_ac97_valid_reg(ac97, reg))
1194 return 0;
1195 if (hi_max) {
1196 /* invert */
ee42381e 1197 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 8, 0, lo_max, 1);
1da177e4
LT		 1198 tmp.index = ac97->num;
1199 kctl = snd_ctl_new1(&tmp, ac97);
1200 } else {
1201 /* invert */
ee42381e 1202 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 0, lo_max, 1);
1da177e4
LT		 1203 tmp.index = ac97->num;
1204 kctl = snd_ctl_new1(&tmp, ac97);
1205 }
1206 err = snd_ctl_add(card, kctl);
1207 if (err < 0)
1208 return err;
1209 snd_ac97_write_cache(ac97, reg,
1210 (snd_ac97_read(ac97, reg) & 0x8080) |
1211 lo_max | (hi_max << 8));
1212 return 0;
1213}
1214
1215/*
1216 * create a mute-switch and a volume for normal stereo/mono controls
1217 */
6dbe6628
TI		 1218static int snd_ac97_cmix_new_stereo(struct snd_card *card, const char *pfx,
1219 int reg, int check_stereo, int check_amix,
1220 struct snd_ac97 *ac97)
1da177e4
LT		 1221{
1222 int err;
1223 char name[44];
1224 unsigned char lo_max, hi_max;
1225
1226 if (! snd_ac97_valid_reg(ac97, reg))
1227 return 0;
1228
1229 if (snd_ac97_try_bit(ac97, reg, 15)) {
1230 sprintf(name, "%s Switch", pfx);
6dbe6628
TI		 1231 if ((err = snd_ac97_cmute_new_stereo(card, name, reg,
1232 check_stereo, check_amix,
1233 ac97)) < 0)
1da177e4
LT		 1234 return err;
1235 }
1236 check_volume_resolution(ac97, reg, &lo_max, &hi_max);
1237 if (lo_max) {
1238 sprintf(name, "%s Volume", pfx);
1239 if ((err = snd_ac97_cvol_new(card, name, reg, lo_max, hi_max, ac97)) < 0)
1240 return err;
1241 }
1242 return 0;
1243}
1244
6dbe6628
TI		 1245#define snd_ac97_cmix_new(card, pfx, reg, acheck, ac97) \
1246 snd_ac97_cmix_new_stereo(card, pfx, reg, 0, acheck, ac97)
1247#define snd_ac97_cmute_new(card, name, reg, acheck, ac97) \
1248 snd_ac97_cmute_new_stereo(card, name, reg, 0, acheck, ac97)
1da177e4 1249
ee42381e 1250static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97);
1da177e4 1251
ee42381e 1252static int snd_ac97_mixer_build(struct snd_ac97 * ac97)
1da177e4 1253{
ee42381e
TI		 1254 struct snd_card *card = ac97->bus->card;
1255 struct snd_kcontrol *kctl;
1da177e4
LT		 1256 int err;
1257 unsigned int idx;
1258 unsigned char max;
1259
1260 /* build master controls */
1261 /* AD claims to remove this control from AD1887, although spec v2.2 does not allow this */
1262 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER)) {
1263 if (ac97->flags & AC97_HAS_NO_MASTER_VOL)
6dbe6628
TI		 1264 err = snd_ac97_cmute_new(card, "Master Playback Switch",
1265 AC97_MASTER, 0, ac97);
1da177e4 1266 else
6dbe6628
TI		 1267 err = snd_ac97_cmix_new(card, "Master Playback",
1268 AC97_MASTER, 0, ac97);
1da177e4
LT		 1269 if (err < 0)
1270 return err;
1271 }
1272
1273 ac97->regs[AC97_CENTER_LFE_MASTER] = 0x8080;
1274
1275 /* build center controls */
70c5acbd
JK		 1276 if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER))
1277 && !(ac97->flags & AC97_AD_MULTI)) {
1da177e4
LT		 1278 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_center[0], ac97))) < 0)
1279 return err;
1280 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_center[1], ac97))) < 0)
1281 return err;
1282 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 0, &max);
1283 kctl->private_value &= ~(0xff << 16);
1284 kctl->private_value |= (int)max << 16;
1285 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max);
1286 }
1287
1288 /* build LFE controls */
70c5acbd
JK		 1289 if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER+1))
1290 && !(ac97->flags & AC97_AD_MULTI)) {
1da177e4
LT		 1291 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_lfe[0], ac97))) < 0)
1292 return err;
1293 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_lfe[1], ac97))) < 0)
1294 return err;
1295 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 8, &max);
1296 kctl->private_value &= ~(0xff << 16);
1297 kctl->private_value |= (int)max << 16;
1298 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max << 8);
1299 }
1300
1301 /* build surround controls */
70c5acbd
JK		 1302 if ((snd_ac97_try_volume_mix(ac97, AC97_SURROUND_MASTER))
1303 && !(ac97->flags & AC97_AD_MULTI)) {
1da177e4 1304 /* Surround Master (0x38) is with stereo mutes */
6dbe6628
TI		 1305 if ((err = snd_ac97_cmix_new_stereo(card, "Surround Playback",
1306 AC97_SURROUND_MASTER, 1, 0,
1307 ac97)) < 0)
1da177e4
LT		 1308 return err;
1309 }
1310
1311 /* build headphone controls */
1312 if (snd_ac97_try_volume_mix(ac97, AC97_HEADPHONE)) {
6dbe6628
TI		 1313 if ((err = snd_ac97_cmix_new(card, "Headphone Playback",
1314 AC97_HEADPHONE, 0, ac97)) < 0)
1da177e4
LT		 1315 return err;
1316 }
1317
1318 /* build master mono controls */
1319 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_MONO)) {
6dbe6628
TI		 1320 if ((err = snd_ac97_cmix_new(card, "Master Mono Playback",
1321 AC97_MASTER_MONO, 0, ac97)) < 0)
1da177e4
LT		 1322 return err;
1323 }
1324
1325 /* build master tone controls */
3998b70f
LG		 1326 if (!(ac97->flags & AC97_HAS_NO_TONE)) {
1327 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_TONE)) {
1328 for (idx = 0; idx < 2; idx++) {
1329 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97))) < 0)
1330 return err;
1331 if (ac97->id == AC97_ID_YMF753) {
1332 kctl->private_value &= ~(0xff << 16);
1333 kctl->private_value |= 7 << 16;
1334 }
1da177e4 1335 }
3998b70f 1336 snd_ac97_write_cache(ac97, AC97_MASTER_TONE, 0x0f0f);
1da177e4 1337 }
1da177e4
LT		 1338 }
1339
1340 /* build PC Speaker controls */
1341 if (!(ac97->flags & AC97_HAS_NO_PC_BEEP) &&
1342 ((ac97->flags & AC97_HAS_PC_BEEP) ||
1343 snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP))) {
1344 for (idx = 0; idx < 2; idx++)
1345 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_pc_beep[idx], ac97))) < 0)
1346 return err;
1347 snd_ac97_write_cache(ac97, AC97_PC_BEEP,
1348 snd_ac97_read(ac97, AC97_PC_BEEP) | 0x801e);
1349 }
1350
1351 /* build Phone controls */
1352 if (!(ac97->flags & AC97_HAS_NO_PHONE)) {
1353 if (snd_ac97_try_volume_mix(ac97, AC97_PHONE)) {
6dbe6628
TI		 1354 if ((err = snd_ac97_cmix_new(card, "Phone Playback",
1355 AC97_PHONE, 1, ac97)) < 0)
1da177e4
LT		 1356 return err;
1357 }
1358 }
1359
1360 /* build MIC controls */
3998b70f
LG		 1361 if (!(ac97->flags & AC97_HAS_NO_MIC)) {
1362 if (snd_ac97_try_volume_mix(ac97, AC97_MIC)) {
6dbe6628
TI		 1363 if ((err = snd_ac97_cmix_new(card, "Mic Playback",
1364 AC97_MIC, 1, ac97)) < 0)
3998b70f
LG		 1365 return err;
1366 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_boost, ac97))) < 0)
1367 return err;
1368 }
1da177e4
LT		 1369 }
1370
1371 /* build Line controls */
1372 if (snd_ac97_try_volume_mix(ac97, AC97_LINE)) {
6dbe6628
TI		 1373 if ((err = snd_ac97_cmix_new(card, "Line Playback",
1374 AC97_LINE, 1, ac97)) < 0)
1da177e4
LT		 1375 return err;
1376 }
1377
1378 /* build CD controls */
1379 if (!(ac97->flags & AC97_HAS_NO_CD)) {
1380 if (snd_ac97_try_volume_mix(ac97, AC97_CD)) {
6dbe6628
TI		 1381 if ((err = snd_ac97_cmix_new(card, "CD Playback",
1382 AC97_CD, 1, ac97)) < 0)
1da177e4
LT		 1383 return err;
1384 }
1385 }
1386
1387 /* build Video controls */
1388 if (!(ac97->flags & AC97_HAS_NO_VIDEO)) {
1389 if (snd_ac97_try_volume_mix(ac97, AC97_VIDEO)) {
6dbe6628
TI		 1390 if ((err = snd_ac97_cmix_new(card, "Video Playback",
1391 AC97_VIDEO, 1, ac97)) < 0)
1da177e4
LT		 1392 return err;
1393 }
1394 }
1395
1396 /* build Aux controls */
1459c784
RG		 1397 if (!(ac97->flags & AC97_HAS_NO_AUX)) {
1398 if (snd_ac97_try_volume_mix(ac97, AC97_AUX)) {
6dbe6628
TI		 1399 if ((err = snd_ac97_cmix_new(card, "Aux Playback",
1400 AC97_AUX, 1, ac97)) < 0)
1459c784
RG		 1401 return err;
1402 }
1da177e4
LT		 1403 }
1404
1405 /* build PCM controls */
1406 if (ac97->flags & AC97_AD_MULTI) {
1407 unsigned short init_val;
1408 if (ac97->flags & AC97_STEREO_MUTES)
1409 init_val = 0x9f9f;
1410 else
1411 init_val = 0x9f1f;
1412 for (idx = 0; idx < 2; idx++)
1413 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_pcm[idx], ac97))) < 0)
1414 return err;
1415 ac97->spec.ad18xx.pcmreg[0] = init_val;
1416 if (ac97->scaps & AC97_SCAP_SURROUND_DAC) {
1417 for (idx = 0; idx < 2; idx++)
1418 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_surround[idx], ac97))) < 0)
1419 return err;
1420 ac97->spec.ad18xx.pcmreg[1] = init_val;
1421 }
1422 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) {
1423 for (idx = 0; idx < 2; idx++)
1424 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_center[idx], ac97))) < 0)
1425 return err;
1426 for (idx = 0; idx < 2; idx++)
1427 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_lfe[idx], ac97))) < 0)
1428 return err;
1429 ac97->spec.ad18xx.pcmreg[2] = init_val;
1430 }
1431 snd_ac97_write_cache(ac97, AC97_PCM, init_val);
1432 } else {
3998b70f
LG		 1433 if (!(ac97->flags & AC97_HAS_NO_STD_PCM)) {
1434 if (ac97->flags & AC97_HAS_NO_PCM_VOL)
6dbe6628
TI		 1435 err = snd_ac97_cmute_new(card,
1436 "PCM Playback Switch",
1437 AC97_PCM, 0, ac97);
3998b70f 1438 else
6dbe6628
TI		 1439 err = snd_ac97_cmix_new(card, "PCM Playback",
1440 AC97_PCM, 0, ac97);
3998b70f
LG		 1441 if (err < 0)
1442 return err;
1443 }
1da177e4
LT		 1444 }
1445
1446 /* build Capture controls */
1447 if (!(ac97->flags & AC97_HAS_NO_REC_GAIN)) {
1448 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_src, ac97))) < 0)
1449 return err;
1450 if (snd_ac97_try_bit(ac97, AC97_REC_GAIN, 15)) {
6dbe6628
TI		 1451 err = snd_ac97_cmute_new(card, "Capture Switch",
1452 AC97_REC_GAIN, 0, ac97);
1453 if (err < 0)
1da177e4
LT		 1454 return err;
1455 }
1456 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_vol, ac97))) < 0)
1457 return err;
1458 snd_ac97_write_cache(ac97, AC97_REC_SEL, 0x0000);
1459 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x0000);
1460 }
1461 /* build MIC Capture controls */
1462 if (snd_ac97_try_volume_mix(ac97, AC97_REC_GAIN_MIC)) {
1463 for (idx = 0; idx < 2; idx++)
1464 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_capture[idx], ac97))) < 0)
1465 return err;
1466 snd_ac97_write_cache(ac97, AC97_REC_GAIN_MIC, 0x0000);
1467 }
1468
1469 /* build PCM out path & mute control */
1470 if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 15)) {
1471 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_PCM_OUT], ac97))) < 0)
1472 return err;
1473 }
1474
1475 /* build Simulated Stereo Enhancement control */
1476 if (ac97->caps & 0x0008) {
1477 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_STEREO_ENHANCEMENT], ac97))) < 0)
1478 return err;
1479 }
1480
1481 /* build 3D Stereo Enhancement control */
1482 if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 13)) {
1483 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_3D], ac97))) < 0)
1484 return err;
1485 }
1486
1487 /* build Loudness control */
1488 if (ac97->caps & 0x0020) {
1489 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOUDNESS], ac97))) < 0)
1490 return err;
1491 }
1492
1493 /* build Mono output select control */
1494 if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 9)) {
1495 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MONO], ac97))) < 0)
1496 return err;
1497 }
1498
1499 /* build Mic select control */
1500 if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 8)) {
1501 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MIC], ac97))) < 0)
1502 return err;
1503 }
1504
1505 /* build ADC/DAC loopback control */
1506 if (enable_loopback && snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 7)) {
1507 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOOPBACK], ac97))) < 0)
1508 return err;
1509 }
1510
1511 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, ~AC97_GP_DRSS_MASK, 0x0000);
1512
1513 /* build 3D controls */
1514 if (ac97->build_ops->build_3d) {
1515 ac97->build_ops->build_3d(ac97);
1516 } else {
1517 if (snd_ac97_try_volume_mix(ac97, AC97_3D_CONTROL)) {
1518 unsigned short val;
1519 val = 0x0707;
1520 snd_ac97_write(ac97, AC97_3D_CONTROL, val);
1521 val = snd_ac97_read(ac97, AC97_3D_CONTROL);
1522 val = val == 0x0606;
1523 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
1524 return err;
1525 if (val)
1526 kctl->private_value = AC97_3D_CONTROL | (9 << 8) | (7 << 16);
1527 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[1], ac97))) < 0)
1528 return err;
1529 if (val)
1530 kctl->private_value = AC97_3D_CONTROL | (1 << 8) | (7 << 16);
1531 snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
1532 }
1533 }
1534
1535 /* build S/PDIF controls */
1536 if ((ac97->ext_id & AC97_EI_SPDIF) && !(ac97->scaps & AC97_SCAP_NO_SPDIF)) {
1537 if (ac97->build_ops->build_spdif) {
1538 if ((err = ac97->build_ops->build_spdif(ac97)) < 0)
1539 return err;
1540 } else {
1541 for (idx = 0; idx < 5; idx++)
1542 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_spdif[idx], ac97))) < 0)
1543 return err;
1544 if (ac97->build_ops->build_post_spdif) {
1545 if ((err = ac97->build_ops->build_post_spdif(ac97)) < 0)
1546 return err;
1547 }
1548 /* set default PCM S/PDIF params */
1549 /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
1550 snd_ac97_write_cache(ac97, AC97_SPDIF, 0x2a20);
1551 ac97->rates[AC97_RATES_SPDIF] = snd_ac97_determine_spdif_rates(ac97);
1552 }
1553 ac97->spdif_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
1554 }
1555
1556 /* build chip specific controls */
1557 if (ac97->build_ops->build_specific)
1558 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1559 return err;
1560
1561 if (snd_ac97_try_bit(ac97, AC97_POWERDOWN, 15)) {
1562 kctl = snd_ac97_cnew(&snd_ac97_control_eapd, ac97);
1563 if (! kctl)
1564 return -ENOMEM;
1565 if (ac97->scaps & AC97_SCAP_INV_EAPD)
1566 set_inv_eapd(ac97, kctl);
1567 if ((err = snd_ctl_add(card, kctl)) < 0)
1568 return err;
1569 }
1570
1571 return 0;
1572}
1573
ee42381e 1574static int snd_ac97_modem_build(struct snd_card *card, struct snd_ac97 * ac97)
1da177e4 1575{
87d61c29
SK		 1576 int err, idx;
1577
1da177e4
LT		 1578 //printk("AC97_GPIO_CFG = %x\n",snd_ac97_read(ac97,AC97_GPIO_CFG));
1579 snd_ac97_write(ac97, AC97_GPIO_CFG, 0xffff & ~(AC97_GPIO_LINE1_OH));
1580 snd_ac97_write(ac97, AC97_GPIO_POLARITY, 0xffff & ~(AC97_GPIO_LINE1_OH));
1581 snd_ac97_write(ac97, AC97_GPIO_STICKY, 0xffff);
1582 snd_ac97_write(ac97, AC97_GPIO_WAKEUP, 0x0);
1583 snd_ac97_write(ac97, AC97_MISC_AFE, 0x0);
87d61c29
SK		 1584
1585 /* build modem switches */
1586 for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_modem_switches); idx++)
0444e2ac 1587 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ac97_controls_modem_switches[idx], ac97))) < 0)
87d61c29
SK		 1588 return err;
1589
1590 /* build chip specific controls */
1591 if (ac97->build_ops->build_specific)
1592 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1593 return err;
1594
1da177e4
LT		 1595 return 0;
1596}
1597
ee42381e 1598static int snd_ac97_test_rate(struct snd_ac97 *ac97, int reg, int shadow_reg, int rate)
1da177e4
LT		 1599{
1600 unsigned short val;
1601 unsigned int tmp;
1602
1603 tmp = ((unsigned int)rate * ac97->bus->clock) / 48000;
1604 snd_ac97_write_cache(ac97, reg, tmp & 0xffff);
1605 if (shadow_reg)
1606 snd_ac97_write_cache(ac97, shadow_reg, tmp & 0xffff);
1607 val = snd_ac97_read(ac97, reg);
1608 return val == (tmp & 0xffff);
1609}
1610
ee42381e 1611static void snd_ac97_determine_rates(struct snd_ac97 *ac97, int reg, int shadow_reg, unsigned int *r_result)
1da177e4
LT		 1612{
1613 unsigned int result = 0;
1614 unsigned short saved;
1615
1616 if (ac97->bus->no_vra) {
1617 *r_result = SNDRV_PCM_RATE_48000;
1618 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1619 reg == AC97_PCM_FRONT_DAC_RATE)
1620 *r_result |= SNDRV_PCM_RATE_96000;
1621 return;
1622 }
1623
1624 saved = snd_ac97_read(ac97, reg);
1625 if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE)
1626 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1627 AC97_EA_DRA, 0);
1628 /* test a non-standard rate */
1629 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11000))
1630 result |= SNDRV_PCM_RATE_CONTINUOUS;
1631 /* let's try to obtain standard rates */
1632 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 8000))
1633 result |= SNDRV_PCM_RATE_8000;
1634 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11025))
1635 result |= SNDRV_PCM_RATE_11025;
1636 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 16000))
1637 result |= SNDRV_PCM_RATE_16000;
1638 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 22050))
1639 result |= SNDRV_PCM_RATE_22050;
1640 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 32000))
1641 result |= SNDRV_PCM_RATE_32000;
1642 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 44100))
1643 result |= SNDRV_PCM_RATE_44100;
1644 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 48000))
1645 result |= SNDRV_PCM_RATE_48000;
1646 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1647 reg == AC97_PCM_FRONT_DAC_RATE) {
1648 /* test standard double rates */
1649 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1650 AC97_EA_DRA, AC97_EA_DRA);
1651 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 64000 / 2))
1652 result |= SNDRV_PCM_RATE_64000;
1653 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 88200 / 2))
1654 result |= SNDRV_PCM_RATE_88200;
1655 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 96000 / 2))
1656 result |= SNDRV_PCM_RATE_96000;
1657 /* some codecs don't support variable double rates */
1658 if (!snd_ac97_test_rate(ac97, reg, shadow_reg, 76100 / 2))
1659 result &= ~SNDRV_PCM_RATE_CONTINUOUS;
1660 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1661 AC97_EA_DRA, 0);
1662 }
1663 /* restore the default value */
1664 snd_ac97_write_cache(ac97, reg, saved);
1665 if (shadow_reg)
1666 snd_ac97_write_cache(ac97, shadow_reg, saved);
1667 *r_result = result;
1668}
1669
1670/* check AC97_SPDIF register to accept which sample rates */
ee42381e 1671static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97)
1da177e4
LT		 1672{
1673 unsigned int result = 0;
1674 int i;
1675 static unsigned short ctl_bits[] = {
1676 AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K
1677 };
1678 static unsigned int rate_bits[] = {
1679 SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000
1680 };
1681
1682 for (i = 0; i < (int)ARRAY_SIZE(ctl_bits); i++) {
1683 snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, ctl_bits[i]);
1684 if ((snd_ac97_read(ac97, AC97_SPDIF) & AC97_SC_SPSR_MASK) == ctl_bits[i])
1685 result |= rate_bits[i];
1686 }
1687 return result;
1688}
1689
1690/* look for the codec id table matching with the given id */
ee42381e
TI		 1691static const struct ac97_codec_id *look_for_codec_id(const struct ac97_codec_id *table,
1692 unsigned int id)
1da177e4 1693{
ee42381e 1694 const struct ac97_codec_id *pid;
1da177e4
LT		 1695
1696 for (pid = table; pid->id; pid++)
1697 if (pid->id == (id & pid->mask))
1698 return pid;
1699 return NULL;
1700}
1701
ee42381e 1702void snd_ac97_get_name(struct snd_ac97 *ac97, unsigned int id, char *name, int modem)
1da177e4 1703{
ee42381e 1704 const struct ac97_codec_id *pid;
1da177e4
LT		 1705
1706 sprintf(name, "0x%x %c%c%c", id,
1707 printable(id >> 24),
1708 printable(id >> 16),
1709 printable(id >> 8));
1710 pid = look_for_codec_id(snd_ac97_codec_id_vendors, id);
1711 if (! pid)
1712 return;
1713
1714 strcpy(name, pid->name);
1715 if (ac97 && pid->patch) {
1716 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1717 (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1718 pid->patch(ac97);
1719 }
1720
1721 pid = look_for_codec_id(snd_ac97_codec_ids, id);
1722 if (pid) {
1723 strcat(name, " ");
1724 strcat(name, pid->name);
1725 if (pid->mask != 0xffffffff)
1726 sprintf(name + strlen(name), " rev %d", id & ~pid->mask);
1727 if (ac97 && pid->patch) {
1728 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1729 (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1730 pid->patch(ac97);
1731 }
1732 } else
1733 sprintf(name + strlen(name), " id %x", id & 0xff);
1734}
1735
1736/**
1737 * snd_ac97_get_short_name - retrieve codec name
1738 * @ac97: the codec instance
1739 *
1740 * Returns the short identifying name of the codec.
1741 */
ee42381e 1742const char *snd_ac97_get_short_name(struct snd_ac97 *ac97)
1da177e4 1743{
ee42381e 1744 const struct ac97_codec_id *pid;
1da177e4
LT		 1745
1746 for (pid = snd_ac97_codec_ids; pid->id; pid++)
1747 if (pid->id == (ac97->id & pid->mask))
1748 return pid->name;
1749 return "unknown codec";
1750}
1751
7b09679c 1752EXPORT_SYMBOL(snd_ac97_get_short_name);
1da177e4
LT		 1753
1754/* wait for a while until registers are accessible after RESET
1755 * return 0 if ok, negative not ready
1756 */
ee42381e 1757static int ac97_reset_wait(struct snd_ac97 *ac97, int timeout, int with_modem)
1da177e4
LT		 1758{
1759 unsigned long end_time;
1760 unsigned short val;
1761
1762 end_time = jiffies + timeout;
1763 do {
1764
1765 /* use preliminary reads to settle the communication */
1766 snd_ac97_read(ac97, AC97_RESET);
1767 snd_ac97_read(ac97, AC97_VENDOR_ID1);
1768 snd_ac97_read(ac97, AC97_VENDOR_ID2);
1769 /* modem? */
1770 if (with_modem) {
1771 val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1772 if (val != 0xffff && (val & 1) != 0)
1773 return 0;
1774 }
1775 if (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) {
1776 /* probably only Xbox issue - all registers are read as zero */
1777 val = snd_ac97_read(ac97, AC97_VENDOR_ID1);
1778 if (val != 0 && val != 0xffff)
1779 return 0;
1780 } else {
1781 /* because the PCM or MASTER volume registers can be modified,
1782 * the REC_GAIN register is used for tests
1783 */
1784 /* test if we can write to the record gain volume register */
1785 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
1786 if ((snd_ac97_read(ac97, AC97_REC_GAIN) & 0x7fff) == 0x0a05)
1787 return 0;
1788 }
8433a509 1789 schedule_timeout_uninterruptible(1);
1da177e4
LT		 1790 } while (time_after_eq(end_time, jiffies));
1791 return -ENODEV;
1792}
1793
1794/**
1795 * snd_ac97_bus - create an AC97 bus component
1796 * @card: the card instance
1797 * @num: the bus number
1798 * @ops: the bus callbacks table
1799 * @private_data: private data pointer for the new instance
1800 * @rbus: the pointer to store the new AC97 bus instance.
1801 *
ee42381e 1802 * Creates an AC97 bus component. An struct snd_ac97_bus instance is newly
1da177e4
LT		 1803 * allocated and initialized.
1804 *
1805 * The ops table must include valid callbacks (at least read and
1806 * write). The other callbacks, wait and reset, are not mandatory.
1807 *
1808 * The clock is set to 48000. If another clock is needed, set
1809 * (*rbus)->clock manually.
1810 *
1811 * The AC97 bus instance is registered as a low-level device, so you don't
1812 * have to release it manually.
1813 *
1814 * Returns zero if successful, or a negative error code on failure.
1815 */
ee42381e
TI		 1816int snd_ac97_bus(struct snd_card *card, int num, struct snd_ac97_bus_ops *ops,
1817 void *private_data, struct snd_ac97_bus **rbus)
1da177e4
LT		 1818{
1819 int err;
ee42381e
TI		 1820 struct snd_ac97_bus *bus;
1821 static struct snd_device_ops dev_ops = {
1da177e4
LT		 1822 .dev_free = snd_ac97_bus_dev_free,
1823 };
1824
1825 snd_assert(card != NULL, return -EINVAL);
1826 snd_assert(rbus != NULL, return -EINVAL);
e560d8d8 1827 bus = kzalloc(sizeof(*bus), GFP_KERNEL);
1da177e4
LT		 1828 if (bus == NULL)
1829 return -ENOMEM;
1830 bus->card = card;
1831 bus->num = num;
1832 bus->ops = ops;
1833 bus->private_data = private_data;
1834 bus->clock = 48000;
1835 spin_lock_init(&bus->bus_lock);
1836 snd_ac97_bus_proc_init(bus);
1837 if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
1838 snd_ac97_bus_free(bus);
1839 return err;
1840 }
1841 *rbus = bus;
1842 return 0;
1843}
1844
7b09679c
TI		 1845EXPORT_SYMBOL(snd_ac97_bus);
1846
0ca06a00
LG		 1847/* stop no dev release warning */
1848static void ac97_device_release(struct device * dev)
1849{
1850}
1851
1852/* register ac97 codec to bus */
ee42381e 1853static int snd_ac97_dev_register(struct snd_device *device)
0ca06a00 1854{
ee42381e 1855 struct snd_ac97 *ac97 = device->device_data;
0ca06a00
LG		 1856 int err;
1857
1858 ac97->dev.bus = &ac97_bus_type;
1859 ac97->dev.parent = ac97->bus->card->dev;
0ca06a00 1860 ac97->dev.release = ac97_device_release;
9398441e
TI		 1861 snprintf(ac97->dev.bus_id, BUS_ID_SIZE, "%d-%d:%s",
1862 ac97->bus->card->number, ac97->num,
1863 snd_ac97_get_short_name(ac97));
0ca06a00
LG		 1864 if ((err = device_register(&ac97->dev)) < 0) {
1865 snd_printk(KERN_ERR "Can't register ac97 bus\n");
1866 ac97->dev.bus = NULL;
1867 return err;
1868 }
1869 return 0;
1870}
1871
c461482c
TI		 1872/* disconnect ac97 codec */
1873static int snd_ac97_dev_disconnect(struct snd_device *device)
0ca06a00 1874{
ee42381e 1875 struct snd_ac97 *ac97 = device->device_data;
0ca06a00
LG		 1876 if (ac97->dev.bus)
1877 device_unregister(&ac97->dev);
c461482c 1878 return 0;
0ca06a00
LG		 1879}
1880
1da177e4
LT		 1881/* build_ops to do nothing */
1882static struct snd_ac97_build_ops null_build_ops;
1883
6dbe6628
TI		 1884#ifdef CONFIG_SND_AC97_POWER_SAVE
1885static void do_update_power(void *data)
1886{
1887 update_power_regs(data);
1888}
1889#endif
1890
1da177e4
LT		 1891/**
1892 * snd_ac97_mixer - create an Codec97 component
1893 * @bus: the AC97 bus which codec is attached to
1894 * @template: the template of ac97, including index, callbacks and
1895 * the private data.
1896 * @rac97: the pointer to store the new ac97 instance.
1897 *
ee42381e 1898 * Creates an Codec97 component. An struct snd_ac97 instance is newly
1da177e4
LT		 1899 * allocated and initialized from the template. The codec
1900 * is then initialized by the standard procedure.
1901 *
1902 * The template must include the codec number (num) and address (addr),
1903 * and the private data (private_data).
1904 *
1905 * The ac97 instance is registered as a low-level device, so you don't
1906 * have to release it manually.
1907 *
1908 * Returns zero if successful, or a negative error code on failure.
1909 */
ee42381e 1910int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template, struct snd_ac97 **rac97)
1da177e4
LT		 1911{
1912 int err;
ee42381e
TI		 1913 struct snd_ac97 *ac97;
1914 struct snd_card *card;
1da177e4
LT		 1915 char name[64];
1916 unsigned long end_time;
1917 unsigned int reg;
ee42381e
TI		 1918 const struct ac97_codec_id *pid;
1919 static struct snd_device_ops ops = {
1da177e4 1920 .dev_free = snd_ac97_dev_free,
0ca06a00 1921 .dev_register = snd_ac97_dev_register,
c461482c 1922 .dev_disconnect = snd_ac97_dev_disconnect,
1da177e4
LT		 1923 };
1924
1925 snd_assert(rac97 != NULL, return -EINVAL);
1926 *rac97 = NULL;
1927 snd_assert(bus != NULL && template != NULL, return -EINVAL);
1928 snd_assert(template->num < 4 && bus->codec[template->num] == NULL, return -EINVAL);
1929
1da177e4 1930 card = bus->card;
e560d8d8 1931 ac97 = kzalloc(sizeof(*ac97), GFP_KERNEL);
1da177e4
LT		 1932 if (ac97 == NULL)
1933 return -ENOMEM;
1934 ac97->private_data = template->private_data;
1935 ac97->private_free = template->private_free;
1936 ac97->bus = bus;
1937 ac97->pci = template->pci;
1938 ac97->num = template->num;
1939 ac97->addr = template->addr;
1940 ac97->scaps = template->scaps;
7c5706bb 1941 ac97->res_table = template->res_table;
1da177e4 1942 bus->codec[ac97->num] = ac97;
62932df8
IM		 1943 mutex_init(&ac97->reg_mutex);
1944 mutex_init(&ac97->page_mutex);
6dbe6628
TI		 1945#ifdef CONFIG_SND_AC97_POWER_SAVE
1946 ac97->power_workq = create_workqueue("ac97");
1947 INIT_WORK(&ac97->power_work, do_update_power, ac97);
1948#endif
1da177e4 1949
adf1b3d2 1950#ifdef CONFIG_PCI
1da177e4
LT		 1951 if (ac97->pci) {
1952 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_VENDOR_ID, &ac97->subsystem_vendor);
1953 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_ID, &ac97->subsystem_device);
1954 }
adf1b3d2 1955#endif
1da177e4
LT		 1956 if (bus->ops->reset) {
1957 bus->ops->reset(ac97);
1958 goto __access_ok;
1959 }
1960
1961 ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
1962 ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
1963 if (ac97->id && ac97->id != (unsigned int)-1) {
1964 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
1965 if (pid && (pid->flags & AC97_DEFAULT_POWER_OFF))
1966 goto __access_ok;
1967 }
1968
23fea4da
SK		 1969 /* reset to defaults */
1970 if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
1971 snd_ac97_write(ac97, AC97_RESET, 0);
1972 if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
1973 snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
1da177e4
LT		 1974 if (bus->ops->wait)
1975 bus->ops->wait(ac97);
1976 else {
1977 udelay(50);
1978 if (ac97->scaps & AC97_SCAP_SKIP_AUDIO)
1979 err = ac97_reset_wait(ac97, HZ/2, 1);
1980 else {
1981 err = ac97_reset_wait(ac97, HZ/2, 0);
1982 if (err < 0)
1983 err = ac97_reset_wait(ac97, HZ/2, 1);
1984 }
1985 if (err < 0) {
1986 snd_printk(KERN_WARNING "AC'97 %d does not respond - RESET\n", ac97->num);
1987 /* proceed anyway - it's often non-critical */
1988 }
1989 }
1990 __access_ok:
1991 ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
1992 ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
1993 if (! (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) &&
1994 (ac97->id == 0x00000000 || ac97->id == 0xffffffff)) {
1995 snd_printk(KERN_ERR "AC'97 %d access is not valid [0x%x], removing mixer.\n", ac97->num, ac97->id);
1996 snd_ac97_free(ac97);
1997 return -EIO;
1998 }
1999 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2000 if (pid)
2001 ac97->flags |= pid->flags;
2002
2003 /* test for AC'97 */
2004 if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO) && !(ac97->scaps & AC97_SCAP_AUDIO)) {
2005 /* test if we can write to the record gain volume register */
2006 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a06);
2007 if (((err = snd_ac97_read(ac97, AC97_REC_GAIN)) & 0x7fff) == 0x0a06)
2008 ac97->scaps |= AC97_SCAP_AUDIO;
2009 }
2010 if (ac97->scaps & AC97_SCAP_AUDIO) {
2011 ac97->caps = snd_ac97_read(ac97, AC97_RESET);
2012 ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);
2013 if (ac97->ext_id == 0xffff) /* invalid combination */
2014 ac97->ext_id = 0;
2015 }
2016
2017 /* test for MC'97 */
2018 if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM) && !(ac97->scaps & AC97_SCAP_MODEM)) {
2019 ac97->ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2020 if (ac97->ext_mid == 0xffff) /* invalid combination */
2021 ac97->ext_mid = 0;
2022 if (ac97->ext_mid & 1)
2023 ac97->scaps |= AC97_SCAP_MODEM;
2024 }
2025
2026 if (!ac97_is_audio(ac97) && !ac97_is_modem(ac97)) {
2027 if (!(ac97->scaps & (AC97_SCAP_SKIP_AUDIO|AC97_SCAP_SKIP_MODEM)))
2028 snd_printk(KERN_ERR "AC'97 %d access error (not audio or modem codec)\n", ac97->num);
2029 snd_ac97_free(ac97);
2030 return -EACCES;
2031 }
2032
2033 if (bus->ops->reset) // FIXME: always skipping?
2034 goto __ready_ok;
2035
2036 /* FIXME: add powerdown control */
2037 if (ac97_is_audio(ac97)) {
2038 /* nothing should be in powerdown mode */
2039 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2040 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2041 snd_ac97_write_cache(ac97, AC97_RESET, 0); /* reset to defaults */
2042 udelay(100);
2043 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2044 }
2045 /* nothing should be in powerdown mode */
2046 snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0);
2047 end_time = jiffies + (HZ / 10);
2048 do {
2049 if ((snd_ac97_read(ac97, AC97_POWERDOWN) & 0x0f) == 0x0f)
2050 goto __ready_ok;
8433a509 2051 schedule_timeout_uninterruptible(1);
1da177e4
LT		 2052 } while (time_after_eq(end_time, jiffies));
2053 snd_printk(KERN_WARNING "AC'97 %d analog subsections not ready\n", ac97->num);
2054 }
2055
2056 /* FIXME: add powerdown control */
2057 if (ac97_is_modem(ac97)) {
2058 unsigned char tmp;
2059
2060 /* nothing should be in powerdown mode */
2061 /* note: it's important to set the rate at first */
2062 tmp = AC97_MEA_GPIO;
2063 if (ac97->ext_mid & AC97_MEI_LINE1) {
8e8311b0 2064 snd_ac97_write_cache(ac97, AC97_LINE1_RATE, 8000);
1da177e4
LT		 2065 tmp |= AC97_MEA_ADC1 | AC97_MEA_DAC1;
2066 }
2067 if (ac97->ext_mid & AC97_MEI_LINE2) {
8e8311b0 2068 snd_ac97_write_cache(ac97, AC97_LINE2_RATE, 8000);
1da177e4
LT		 2069 tmp |= AC97_MEA_ADC2 | AC97_MEA_DAC2;
2070 }
2071 if (ac97->ext_mid & AC97_MEI_HANDSET) {
8e8311b0 2072 snd_ac97_write_cache(ac97, AC97_HANDSET_RATE, 8000);
1da177e4
LT		 2073 tmp |= AC97_MEA_HADC | AC97_MEA_HDAC;
2074 }
8e8311b0 2075 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
1da177e4
LT		 2076 udelay(100);
2077 /* nothing should be in powerdown mode */
8e8311b0 2078 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
1da177e4
LT		 2079 end_time = jiffies + (HZ / 10);
2080 do {
2081 if ((snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS) & tmp) == tmp)
2082 goto __ready_ok;
8433a509 2083 schedule_timeout_uninterruptible(1);
1da177e4
LT		 2084 } while (time_after_eq(end_time, jiffies));
2085 snd_printk(KERN_WARNING "MC'97 %d converters and GPIO not ready (0x%x)\n", ac97->num, snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS));
2086 }
2087
2088 __ready_ok:
2089 if (ac97_is_audio(ac97))
2090 ac97->addr = (ac97->ext_id & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT;
2091 else
2092 ac97->addr = (ac97->ext_mid & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT;
2093 if (ac97->ext_id & 0x01c9) { /* L/R, MIC, SDAC, LDAC VRA support */
2094 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2095 reg |= ac97->ext_id & 0x01c0; /* LDAC/SDAC/CDAC */
2096 if (! bus->no_vra)
2097 reg |= ac97->ext_id & 0x0009; /* VRA/VRM */
2098 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2099 }
2100 if ((ac97->ext_id & AC97_EI_DRA) && bus->dra) {
2101 /* Intel controllers require double rate data to be put in
2102 * slots 7+8, so let's hope the codec supports it. */
2103 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, AC97_GP_DRSS_78);
2104 if ((snd_ac97_read(ac97, AC97_GENERAL_PURPOSE) & AC97_GP_DRSS_MASK) == AC97_GP_DRSS_78)
2105 ac97->flags |= AC97_DOUBLE_RATE;
091e95ee
TI		 2106 /* restore to slots 10/11 to avoid the confliction with surrounds */
2107 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, 0);
1da177e4
LT		 2108 }
2109 if (ac97->ext_id & AC97_EI_VRA) { /* VRA support */
2110 snd_ac97_determine_rates(ac97, AC97_PCM_FRONT_DAC_RATE, 0, &ac97->rates[AC97_RATES_FRONT_DAC]);
2111 snd_ac97_determine_rates(ac97, AC97_PCM_LR_ADC_RATE, 0, &ac97->rates[AC97_RATES_ADC]);
2112 } else {
2113 ac97->rates[AC97_RATES_FRONT_DAC] = SNDRV_PCM_RATE_48000;
2114 if (ac97->flags & AC97_DOUBLE_RATE)
2115 ac97->rates[AC97_RATES_FRONT_DAC] |= SNDRV_PCM_RATE_96000;
2116 ac97->rates[AC97_RATES_ADC] = SNDRV_PCM_RATE_48000;
2117 }
2118 if (ac97->ext_id & AC97_EI_SPDIF) {
2119 /* codec specific code (patch) should override these values */
2120 ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_32000;
2121 }
2122 if (ac97->ext_id & AC97_EI_VRM) { /* MIC VRA support */
2123 snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]);
2124 } else {
2125 ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000;
2126 }
2127 if (ac97->ext_id & AC97_EI_SDAC) { /* SDAC support */
2128 snd_ac97_determine_rates(ac97, AC97_PCM_SURR_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_SURR_DAC]);
2129 ac97->scaps |= AC97_SCAP_SURROUND_DAC;
2130 }
2131 if (ac97->ext_id & AC97_EI_LDAC) { /* LDAC support */
2132 snd_ac97_determine_rates(ac97, AC97_PCM_LFE_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_LFE_DAC]);
2133 ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
2134 }
2135 /* additional initializations */
2136 if (bus->ops->init)
2137 bus->ops->init(ac97);
2138 snd_ac97_get_name(ac97, ac97->id, name, !ac97_is_audio(ac97));
2139 snd_ac97_get_name(NULL, ac97->id, name, !ac97_is_audio(ac97)); // ac97->id might be changed in the special setup code
2140 if (! ac97->build_ops)
2141 ac97->build_ops = &null_build_ops;
2142
2143 if (ac97_is_audio(ac97)) {
2144 char comp[16];
2145 if (card->mixername[0] == '\0') {
2146 strcpy(card->mixername, name);
2147 } else {
2148 if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2149 strcat(card->mixername, ",");
2150 strcat(card->mixername, name);
2151 }
2152 }
2153 sprintf(comp, "AC97a:%08x", ac97->id);
2154 if ((err = snd_component_add(card, comp)) < 0) {
2155 snd_ac97_free(ac97);
2156 return err;
2157 }
2158 if (snd_ac97_mixer_build(ac97) < 0) {
2159 snd_ac97_free(ac97);
2160 return -ENOMEM;
2161 }
2162 }
2163 if (ac97_is_modem(ac97)) {
2164 char comp[16];
2165 if (card->mixername[0] == '\0') {
2166 strcpy(card->mixername, name);
2167 } else {
2168 if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2169 strcat(card->mixername, ",");
2170 strcat(card->mixername, name);
2171 }
2172 }
2173 sprintf(comp, "AC97m:%08x", ac97->id);
2174 if ((err = snd_component_add(card, comp)) < 0) {
2175 snd_ac97_free(ac97);
2176 return err;
2177 }
2178 if (snd_ac97_modem_build(card, ac97) < 0) {
2179 snd_ac97_free(ac97);
2180 return -ENOMEM;
2181 }
2182 }
6dbe6628
TI		 2183 if (ac97_is_audio(ac97))
2184 update_power_regs(ac97);
1da177e4
LT		 2185 snd_ac97_proc_init(ac97);
2186 if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ac97, &ops)) < 0) {
2187 snd_ac97_free(ac97);
2188 return err;
2189 }
2190 *rac97 = ac97;
1da177e4
LT		 2191 return 0;
2192}
2193
7b09679c 2194EXPORT_SYMBOL(snd_ac97_mixer);
1da177e4
LT		 2195
2196/*
2197 * Power down the chip.
2198 *
2199 * MASTER and HEADPHONE registers are muted but the register cache values
2200 * are not changed, so that the values can be restored in snd_ac97_resume().
2201 */
ee42381e 2202static void snd_ac97_powerdown(struct snd_ac97 *ac97)
1da177e4
LT		 2203{
2204 unsigned short power;
2205
2206 if (ac97_is_audio(ac97)) {
2207 /* some codecs have stereo mute bits */
2208 snd_ac97_write(ac97, AC97_MASTER, 0x9f9f);
2209 snd_ac97_write(ac97, AC97_HEADPHONE, 0x9f9f);
2210 }
2211
6dbe6628
TI		 2212 /* surround, CLFE, mic powerdown */
2213 power = ac97->regs[AC97_EXTENDED_STATUS];
2214 if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2215 power |= AC97_EA_PRJ;
2216 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2217 power |= AC97_EA_PRI | AC97_EA_PRK;
2218 power |= AC97_EA_PRL;
2219 snd_ac97_write(ac97, AC97_EXTENDED_STATUS, power);
2220
2221 /* powerdown external amplifier */
2222 if (ac97->scaps & AC97_SCAP_INV_EAPD)
2223 power = ac97->regs[AC97_POWERDOWN] & ~AC97_PD_EAPD;
2224 else if (! (ac97->scaps & AC97_SCAP_EAPD_LED))
2225 power = ac97->regs[AC97_POWERDOWN] | AC97_PD_EAPD;
2226 power |= AC97_PD_PR6; /* Headphone amplifier powerdown */
2227 power |= AC97_PD_PR0 | AC97_PD_PR1; /* ADC & DAC powerdown */
1da177e4
LT		 2228 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2229 udelay(100);
6dbe6628 2230 power |= AC97_PD_PR2 | AC97_PD_PR3; /* Analog Mixer powerdown */
1da177e4 2231 snd_ac97_write(ac97, AC97_POWERDOWN, power);
6dbe6628
TI		 2232#ifdef CONFIG_SND_AC97_POWER_SAVE
2233 if (power_save) {
2234 udelay(100);
2235 /* AC-link powerdown, internal Clk disable */
2236 /* FIXME: this may cause click noises on some boards */
2237 power |= AC97_PD_PR4 | AC97_PD_PR5;
2238 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2239 }
1da177e4
LT		 2240#endif
2241}
2242
2243
6dbe6628
TI		 2244struct ac97_power_reg {
2245 unsigned short reg;
2246 unsigned short power_reg;
2247 unsigned short mask;
2248};
2249
2250enum { PWIDX_ADC, PWIDX_FRONT, PWIDX_CLFE, PWIDX_SURR, PWIDX_MIC, PWIDX_SIZE };
2251
2252static struct ac97_power_reg power_regs[PWIDX_SIZE] = {
2253 [PWIDX_ADC] = { AC97_PCM_LR_ADC_RATE, AC97_POWERDOWN, AC97_PD_PR0},
2254 [PWIDX_FRONT] = { AC97_PCM_FRONT_DAC_RATE, AC97_POWERDOWN, AC97_PD_PR1},
2255 [PWIDX_CLFE] = { AC97_PCM_LFE_DAC_RATE, AC97_EXTENDED_STATUS,
2256 AC97_EA_PRI | AC97_EA_PRK},
2257 [PWIDX_SURR] = { AC97_PCM_SURR_DAC_RATE, AC97_EXTENDED_STATUS,
2258 AC97_EA_PRJ},
2259 [PWIDX_MIC] = { AC97_PCM_MIC_ADC_RATE, AC97_EXTENDED_STATUS,
2260 AC97_EA_PRL},
2261};
2262
2263#ifdef CONFIG_SND_AC97_POWER_SAVE
2264/**
2265 * snd_ac97_update_power - update the powerdown register
2266 * @ac97: the codec instance
2267 * @reg: the rate register, e.g. AC97_PCM_FRONT_DAC_RATE
2268 * @powerup: non-zero when power up the part
2269 *
2270 * Update the AC97 powerdown register bits of the given part.
2271 */
2272int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup)
2273{
2274 int i;
2275
2276 if (! ac97)
2277 return 0;
2278
2279 if (reg) {
2280 /* SPDIF requires DAC power, too */
2281 if (reg == AC97_SPDIF)
2282 reg = AC97_PCM_FRONT_DAC_RATE;
2283 for (i = 0; i < PWIDX_SIZE; i++) {
2284 if (power_regs[i].reg == reg) {
2285 if (powerup)
2286 ac97->power_up |= (1 << i);
2287 else
2288 ac97->power_up &= ~(1 << i);
2289 break;
2290 }
2291 }
2292 }
2293
2294 if (! power_save)
2295 return 0;
2296
2297 if (! powerup && ac97->power_workq)
2298 /* adjust power-down bits after two seconds delay
2299 * (for avoiding loud click noises for many (OSS) apps
2300 * that open/close frequently)
2301 */
2302 queue_delayed_work(ac97->power_workq, &ac97->power_work, HZ*2);
2303 else
2304 update_power_regs(ac97);
2305
2306 return 0;
2307}
2308
2309EXPORT_SYMBOL(snd_ac97_update_power);
2310#endif /* CONFIG_SND_AC97_POWER_SAVE */
2311
2312static void update_power_regs(struct snd_ac97 *ac97)
2313{
2314 unsigned int power_up, bits;
2315 int i;
2316
2317#ifdef CONFIG_SND_AC97_POWER_SAVE
2318 if (power_save)
2319 power_up = ac97->power_up;
2320 else {
2321#endif
2322 power_up = (1 << PWIDX_FRONT) | (1 << PWIDX_ADC);
2323 power_up |= (1 << PWIDX_MIC);
2324 if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2325 power_up |= (1 << PWIDX_SURR);
2326 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2327 power_up |= (1 << PWIDX_CLFE);
2328#ifdef CONFIG_SND_AC97_POWER_SAVE
2329 }
2330#endif
2331 if (power_up) {
2332 if (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2) {
2333 /* needs power-up analog mix and vref */
2334 snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2335 AC97_PD_PR3, 0);
2336 msleep(1);
2337 snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2338 AC97_PD_PR2, 0);
2339 }
2340 }
2341 for (i = 0; i < PWIDX_SIZE; i++) {
2342 if (power_up & (1 << i))
2343 bits = 0;
2344 else
2345 bits = power_regs[i].mask;
2346 snd_ac97_update_bits(ac97, power_regs[i].power_reg,
2347 power_regs[i].mask, bits);
2348 }
2349 if (! power_up) {
2350 if (! (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2)) {
2351 /* power down analog mix and vref */
2352 snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2353 AC97_PD_PR2, AC97_PD_PR2);
2354 snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2355 AC97_PD_PR3, AC97_PD_PR3);
2356 }
2357 }
2358}
2359
2360
1da177e4
LT		 2361#ifdef CONFIG_PM
2362/**
2363 * snd_ac97_suspend - General suspend function for AC97 codec
2364 * @ac97: the ac97 instance
2365 *
2366 * Suspends the codec, power down the chip.
2367 */
ee42381e 2368void snd_ac97_suspend(struct snd_ac97 *ac97)
1da177e4 2369{
e26e7545
TI		 2370 if (! ac97)
2371 return;
1da177e4
LT		 2372 if (ac97->build_ops->suspend)
2373 ac97->build_ops->suspend(ac97);
2374 snd_ac97_powerdown(ac97);
2375}
2376
7b09679c
TI		 2377EXPORT_SYMBOL(snd_ac97_suspend);
2378
1da177e4
LT		 2379/*
2380 * restore ac97 status
2381 */
ee42381e 2382void snd_ac97_restore_status(struct snd_ac97 *ac97)
1da177e4
LT		 2383{
2384 int i;
2385
2386 for (i = 2; i < 0x7c ; i += 2) {
2387 if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
2388 continue;
2389 /* restore only accessible registers
2390 * some chip (e.g. nm256) may hang up when unsupported registers
2391 * are accessed..!
2392 */
2393 if (test_bit(i, ac97->reg_accessed)) {
2394 snd_ac97_write(ac97, i, ac97->regs[i]);
2395 snd_ac97_read(ac97, i);
2396 }
2397 }
2398}
2399
2400/*
2401 * restore IEC958 status
2402 */
ee42381e 2403void snd_ac97_restore_iec958(struct snd_ac97 *ac97)
1da177e4
LT		 2404{
2405 if (ac97->ext_id & AC97_EI_SPDIF) {
2406 if (ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_SPDIF) {
2407 /* reset spdif status */
2408 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
2409 snd_ac97_write(ac97, AC97_EXTENDED_STATUS, ac97->regs[AC97_EXTENDED_STATUS]);
2410 if (ac97->flags & AC97_CS_SPDIF)
2411 snd_ac97_write(ac97, AC97_CSR_SPDIF, ac97->regs[AC97_CSR_SPDIF]);
2412 else
2413 snd_ac97_write(ac97, AC97_SPDIF, ac97->regs[AC97_SPDIF]);
2414 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
2415 }
2416 }
2417}
2418
2419/**
2420 * snd_ac97_resume - General resume function for AC97 codec
2421 * @ac97: the ac97 instance
2422 *
2423 * Do the standard resume procedure, power up and restoring the
2424 * old register values.
2425 */
ee42381e 2426void snd_ac97_resume(struct snd_ac97 *ac97)
1da177e4 2427{
ef21ca24 2428 unsigned long end_time;
1da177e4 2429
e26e7545
TI		 2430 if (! ac97)
2431 return;
2432
1da177e4
LT		 2433 if (ac97->bus->ops->reset) {
2434 ac97->bus->ops->reset(ac97);
2435 goto __reset_ready;
2436 }
2437
2438 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2439 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2440 snd_ac97_write(ac97, AC97_RESET, 0);
2441 udelay(100);
2442 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2443 }
2444 snd_ac97_write(ac97, AC97_GENERAL_PURPOSE, 0);
2445
2446 snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]);
2447 if (ac97_is_audio(ac97)) {
2448 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8101);
ef21ca24
NA		 2449 end_time = jiffies + msecs_to_jiffies(100);
2450 do {
1da177e4
LT		 2451 if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101)
2452 break;
8433a509 2453 schedule_timeout_uninterruptible(1);
ef21ca24 2454 } while (time_after_eq(end_time, jiffies));
1da177e4
LT		 2455 /* FIXME: extra delay */
2456 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8000);
ef21ca24
NA		 2457 if (snd_ac97_read(ac97, AC97_MASTER) != 0x8000)
2458 msleep(250);
1da177e4 2459 } else {
ef21ca24
NA		 2460 end_time = jiffies + msecs_to_jiffies(100);
2461 do {
1da177e4
LT		 2462 unsigned short val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2463 if (val != 0xffff && (val & 1) != 0)
2464 break;
8433a509 2465 schedule_timeout_uninterruptible(1);
ef21ca24 2466 } while (time_after_eq(end_time, jiffies));
1da177e4
LT		 2467 }
2468__reset_ready:
2469
2470 if (ac97->bus->ops->init)
2471 ac97->bus->ops->init(ac97);
2472
2473 if (ac97->build_ops->resume)
2474 ac97->build_ops->resume(ac97);
2475 else {
2476 snd_ac97_restore_status(ac97);
2477 snd_ac97_restore_iec958(ac97);
2478 }
2479}
7b09679c
TI		 2480
2481EXPORT_SYMBOL(snd_ac97_resume);
1da177e4
LT		 2482#endif
2483
2484
2485/*
2486 * Hardware tuning
2487 */
2488static void set_ctl_name(char *dst, const char *src, const char *suffix)
2489{
2490 if (suffix)
2491 sprintf(dst, "%s %s", src, suffix);
2492 else
2493 strcpy(dst, src);
2494}
2495
2496/* remove the control with the given name and optional suffix */
ee42381e 2497int snd_ac97_remove_ctl(struct snd_ac97 *ac97, const char *name, const char *suffix)
1da177e4 2498{
ee42381e 2499 struct snd_ctl_elem_id id;
1da177e4
LT		 2500 memset(&id, 0, sizeof(id));
2501 set_ctl_name(id.name, name, suffix);
2502 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2503 return snd_ctl_remove_id(ac97->bus->card, &id);
2504}
2505
ee42381e 2506static struct snd_kcontrol *ctl_find(struct snd_ac97 *ac97, const char *name, const char *suffix)
1da177e4 2507{
ee42381e 2508 struct snd_ctl_elem_id sid;
1da177e4
LT		 2509 memset(&sid, 0, sizeof(sid));
2510 set_ctl_name(sid.name, name, suffix);
2511 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2512 return snd_ctl_find_id(ac97->bus->card, &sid);
2513}
2514
2515/* rename the control with the given name and optional suffix */
ee42381e 2516int snd_ac97_rename_ctl(struct snd_ac97 *ac97, const char *src, const char *dst, const char *suffix)
1da177e4 2517{
ee42381e 2518 struct snd_kcontrol *kctl = ctl_find(ac97, src, suffix);
1da177e4
LT		 2519 if (kctl) {
2520 set_ctl_name(kctl->id.name, dst, suffix);
2521 return 0;
2522 }
2523 return -ENOENT;
2524}
2525
2526/* rename both Volume and Switch controls - don't check the return value */
ee42381e 2527void snd_ac97_rename_vol_ctl(struct snd_ac97 *ac97, const char *src, const char *dst)
1da177e4
LT		 2528{
2529 snd_ac97_rename_ctl(ac97, src, dst, "Switch");
2530 snd_ac97_rename_ctl(ac97, src, dst, "Volume");
2531}
2532
2533/* swap controls */
ee42381e 2534int snd_ac97_swap_ctl(struct snd_ac97 *ac97, const char *s1, const char *s2, const char *suffix)
1da177e4 2535{
ee42381e 2536 struct snd_kcontrol *kctl1, *kctl2;
1da177e4
LT		 2537 kctl1 = ctl_find(ac97, s1, suffix);
2538 kctl2 = ctl_find(ac97, s2, suffix);
2539 if (kctl1 && kctl2) {
2540 set_ctl_name(kctl1->id.name, s2, suffix);
2541 set_ctl_name(kctl2->id.name, s1, suffix);
2542 return 0;
2543 }
2544 return -ENOENT;
2545}
2546
2547#if 1
2548/* bind hp and master controls instead of using only hp control */
ee42381e 2549static int bind_hp_volsw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 2550{
2551 int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2552 if (err > 0) {
2553 unsigned long priv_saved = kcontrol->private_value;
2554 kcontrol->private_value = (kcontrol->private_value & ~0xff) | AC97_HEADPHONE;
2555 snd_ac97_put_volsw(kcontrol, ucontrol);
2556 kcontrol->private_value = priv_saved;
2557 }
2558 return err;
2559}
2560
2561/* ac97 tune: bind Master and Headphone controls */
ee42381e 2562static int tune_hp_only(struct snd_ac97 *ac97)
1da177e4 2563{
ee42381e
TI		 2564 struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2565 struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
1da177e4
LT		 2566 if (! msw || ! mvol)
2567 return -ENOENT;
2568 msw->put = bind_hp_volsw_put;
2569 mvol->put = bind_hp_volsw_put;
2570 snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2571 snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2572 return 0;
2573}
2574
2575#else
2576/* ac97 tune: use Headphone control as master */
ee42381e 2577static int tune_hp_only(struct snd_ac97 *ac97)
1da177e4
LT		 2578{
2579 if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2580 return -ENOENT;
2581 snd_ac97_remove_ctl(ac97, "Master Playback", "Switch");
2582 snd_ac97_remove_ctl(ac97, "Master Playback", "Volume");
2583 snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2584 return 0;
2585}
2586#endif
2587
2588/* ac97 tune: swap Headphone and Master controls */
ee42381e 2589static int tune_swap_hp(struct snd_ac97 *ac97)
1da177e4
LT		 2590{
2591 if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2592 return -ENOENT;
2593 snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Line-Out Playback");
2594 snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2595 return 0;
2596}
2597
2598/* ac97 tune: swap Surround and Master controls */
ee42381e 2599static int tune_swap_surround(struct snd_ac97 *ac97)
1da177e4
LT		 2600{
2601 if (snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Switch") ||
2602 snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Volume"))
2603 return -ENOENT;
2604 return 0;
2605}
2606
2607/* ac97 tune: set up mic sharing for AD codecs */
ee42381e 2608static int tune_ad_sharing(struct snd_ac97 *ac97)
1da177e4
LT		 2609{
2610 unsigned short scfg;
2611 if ((ac97->id & 0xffffff00) != 0x41445300) {
2612 snd_printk(KERN_ERR "ac97_quirk AD_SHARING is only for AD codecs\n");
2613 return -EINVAL;
2614 }
2615 /* Turn on OMS bit to route microphone to back panel */
2616 scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
2617 snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x0200);
2618 return 0;
2619}
2620
ee42381e 2621static const struct snd_kcontrol_new snd_ac97_alc_jack_detect =
1da177e4
LT		 2622AC97_SINGLE("Jack Detect", AC97_ALC650_CLOCK, 5, 1, 0);
2623
2624/* ac97 tune: set up ALC jack-select */
ee42381e 2625static int tune_alc_jack(struct snd_ac97 *ac97)
1da177e4
LT		 2626{
2627 if ((ac97->id & 0xffffff00) != 0x414c4700) {
2628 snd_printk(KERN_ERR "ac97_quirk ALC_JACK is only for Realtek codecs\n");
2629 return -EINVAL;
2630 }
2631 snd_ac97_update_bits(ac97, 0x7a, 0x20, 0x20); /* select jack detect function */
2632 snd_ac97_update_bits(ac97, 0x7a, 0x01, 0x01); /* Line-out auto mute */
031c95d4
TI		 2633 if (ac97->id == AC97_ID_ALC658D)
2634 snd_ac97_update_bits(ac97, 0x74, 0x0800, 0x0800);
1da177e4
LT		 2635 return snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_alc_jack_detect, ac97));
2636}
2637
2638/* ac97 tune: inversed EAPD bit */
ee42381e 2639static int tune_inv_eapd(struct snd_ac97 *ac97)
1da177e4 2640{
ee42381e 2641 struct snd_kcontrol *kctl = ctl_find(ac97, "External Amplifier", NULL);
1da177e4
LT		 2642 if (! kctl)
2643 return -ENOENT;
2644 set_inv_eapd(ac97, kctl);
2645 return 0;
2646}
2647
ee42381e 2648static int master_mute_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 2649{
2650 int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2651 if (err > 0) {
ee42381e 2652 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 2653 int shift = (kcontrol->private_value >> 8) & 0x0f;
2654 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2655 unsigned short mask;
2656 if (shift != rshift)
2657 mask = 0x8080;
2658 else
2659 mask = 0x8000;
2660 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000,
2661 (ac97->regs[AC97_MASTER] & mask) == mask ?
2662 0x8000 : 0);
2663 }
2664 return err;
2665}
2666
2667/* ac97 tune: EAPD controls mute LED bound with the master mute */
ee42381e 2668static int tune_mute_led(struct snd_ac97 *ac97)
1da177e4 2669{
ee42381e 2670 struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
1da177e4
LT		 2671 if (! msw)
2672 return -ENOENT;
2673 msw->put = master_mute_sw_put;
2674 snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2675 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000, 0x8000); /* mute LED on */
6dbe6628 2676 ac97->scaps |= AC97_SCAP_EAPD_LED;
1da177e4
LT		 2677 return 0;
2678}
2679
a0faefed
MG		 2680static int hp_master_mute_sw_put(struct snd_kcontrol *kcontrol,
2681 struct snd_ctl_elem_value *ucontrol)
2682{
2683 int err = bind_hp_volsw_put(kcontrol, ucontrol);
2684 if (err > 0) {
2685 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2686 int shift = (kcontrol->private_value >> 8) & 0x0f;
2687 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2688 unsigned short mask;
2689 if (shift != rshift)
2690 mask = 0x8080;
2691 else
2692 mask = 0x8000;
2693 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000,
2694 (ac97->regs[AC97_MASTER] & mask) == mask ?
2695 0x8000 : 0);
2696 }
2697 return err;
2698}
2699
2700static int tune_hp_mute_led(struct snd_ac97 *ac97)
2701{
2702 struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2703 struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2704 if (! msw || ! mvol)
2705 return -ENOENT;
2706 msw->put = hp_master_mute_sw_put;
2707 mvol->put = bind_hp_volsw_put;
2708 snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2709 snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2710 snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2711 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000, 0x8000); /* mute LED on */
2712 return 0;
2713}
2714
1da177e4
LT		 2715struct quirk_table {
2716 const char *name;
ee42381e 2717 int (*func)(struct snd_ac97 *);
1da177e4
LT		 2718};
2719
2720static struct quirk_table applicable_quirks[] = {
2721 { "none", NULL },
2722 { "hp_only", tune_hp_only },
2723 { "swap_hp", tune_swap_hp },
2724 { "swap_surround", tune_swap_surround },
2725 { "ad_sharing", tune_ad_sharing },
2726 { "alc_jack", tune_alc_jack },
2727 { "inv_eapd", tune_inv_eapd },
2728 { "mute_led", tune_mute_led },
a0faefed 2729 { "hp_mute_led", tune_hp_mute_led },
1da177e4
LT		 2730};
2731
2732/* apply the quirk with the given type */
ee42381e 2733static int apply_quirk(struct snd_ac97 *ac97, int type)
1da177e4
LT		 2734{
2735 if (type <= 0)
2736 return 0;
2737 else if (type >= ARRAY_SIZE(applicable_quirks))
2738 return -EINVAL;
2739 if (applicable_quirks[type].func)
2740 return applicable_quirks[type].func(ac97);
2741 return 0;
2742}
2743
2744/* apply the quirk with the given name */
ee42381e 2745static int apply_quirk_str(struct snd_ac97 *ac97, const char *typestr)
1da177e4
LT		 2746{
2747 int i;
2748 struct quirk_table *q;
2749
2750 for (i = 0; i < ARRAY_SIZE(applicable_quirks); i++) {
2751 q = &applicable_quirks[i];
2752 if (q->name && ! strcmp(typestr, q->name))
2753 return apply_quirk(ac97, i);
2754 }
2755 /* for compatibility, accept the numbers, too */
2756 if (*typestr >= '0' && *typestr <= '9')
2757 return apply_quirk(ac97, (int)simple_strtoul(typestr, NULL, 10));
2758 return -EINVAL;
2759}
2760
2761/**
2762 * snd_ac97_tune_hardware - tune up the hardware
2763 * @ac97: the ac97 instance
2764 * @quirk: quirk list
2765 * @override: explicit quirk value (overrides the list if non-NULL)
2766 *
2767 * Do some workaround for each pci device, such as renaming of the
2768 * headphone (true line-out) control as "Master".
2769 * The quirk-list must be terminated with a zero-filled entry.
2770 *
2771 * Returns zero if successful, or a negative error code on failure.
2772 */
2773
ee42381e 2774int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override)
1da177e4
LT		 2775{
2776 int result;
2777
1da177e4
LT		 2778 /* quirk overriden? */
2779 if (override && strcmp(override, "-1") && strcmp(override, "default")) {
2780 result = apply_quirk_str(ac97, override);
2781 if (result < 0)
2782 snd_printk(KERN_ERR "applying quirk type %s failed (%d)\n", override, result);
2783 return result;
2784 }
2785
4b499486
PP		 2786 if (! quirk)
2787 return -EINVAL;
2788
69ad07cf
JK		 2789 for (; quirk->subvendor; quirk++) {
2790 if (quirk->subvendor != ac97->subsystem_vendor)
1da177e4 2791 continue;
69ad07cf
JK		 2792 if ((! quirk->mask && quirk->subdevice == ac97->subsystem_device) ||
2793 quirk->subdevice == (quirk->mask & ac97->subsystem_device)) {
1da177e4
LT		 2794 if (quirk->codec_id && quirk->codec_id != ac97->id)
2795 continue;
2796 snd_printdd("ac97 quirk for %s (%04x:%04x)\n", quirk->name, ac97->subsystem_vendor, ac97->subsystem_device);
2797 result = apply_quirk(ac97, quirk->type);
2798 if (result < 0)
2799 snd_printk(KERN_ERR "applying quirk type %d for %s failed (%d)\n", quirk->type, quirk->name, result);
2800 return result;
2801 }
2802 }
2803 return 0;
2804}
2805
1da177e4 2806EXPORT_SYMBOL(snd_ac97_tune_hardware);
1da177e4
LT		 2807
2808/*
2809 * INIT part
2810 */
2811
2812static int __init alsa_ac97_init(void)
2813{
2814 return 0;
2815}
2816
2817static void __exit alsa_ac97_exit(void)
2818{
2819}
2820
2821module_init(alsa_ac97_init)
2822module_exit(alsa_ac97_exit)
Clone of davem's net-next-2.6 tree