[ALSA] ens1371 - added extra delay for ac97 codec initialization
[linux-2.6.git] / sound / pci / ac97 / ac97_codec.c
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>
31 #include <sound/core.h>
32 #include <sound/pcm.h>
33 #include <sound/ac97_codec.h>
34 #include <sound/asoundef.h>
35 #include <sound/initval.h>
36 #include "ac97_local.h"
37 #include "ac97_id.h"
38 #include "ac97_patch.h"
39
40 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
41 MODULE_DESCRIPTION("Universal interface for Audio Codec '97");
42 MODULE_LICENSE("GPL");
43
44 static int enable_loopback;
45
46 module_param(enable_loopback, bool, 0444);
47 MODULE_PARM_DESC(enable_loopback, "Enable AC97 ADC/DAC Loopback Control");
48
49 /*
50
51  */
52
53 typedef struct {
54         unsigned int id;
55         unsigned int mask;
56         const char *name;
57         int (*patch)(ac97_t *ac97);
58         int (*mpatch)(ac97_t *ac97);
59         unsigned int flags;
60 } ac97_codec_id_t;
61
62 static const ac97_codec_id_t snd_ac97_codec_id_vendors[] = {
63 { 0x414b4d00, 0xffffff00, "Asahi Kasei",        NULL,   NULL },
64 { 0x41445300, 0xffffff00, "Analog Devices",     NULL,   NULL },
65 { 0x414c4300, 0xffffff00, "Realtek",            NULL,   NULL },
66 { 0x414c4700, 0xffffff00, "Realtek",            NULL,   NULL },
67 { 0x434d4900, 0xffffff00, "C-Media Electronics", NULL,  NULL },
68 { 0x43525900, 0xffffff00, "Cirrus Logic",       NULL,   NULL },
69 { 0x43585400, 0xffffff00, "Conexant",           NULL,   NULL },
70 { 0x44543000, 0xffffff00, "Diamond Technology", NULL,   NULL },
71 { 0x454d4300, 0xffffff00, "eMicro",             NULL,   NULL },
72 { 0x45838300, 0xffffff00, "ESS Technology",     NULL,   NULL },
73 { 0x48525300, 0xffffff00, "Intersil",           NULL,   NULL },
74 { 0x49434500, 0xffffff00, "ICEnsemble",         NULL,   NULL },
75 { 0x49544500, 0xffffff00, "ITE Tech.Inc",       NULL,   NULL },
76 { 0x4e534300, 0xffffff00, "National Semiconductor", NULL, NULL },
77 { 0x50534300, 0xffffff00, "Philips",            NULL,   NULL },
78 { 0x53494c00, 0xffffff00, "Silicon Laboratory", NULL,   NULL },
79 { 0x54524100, 0xffffff00, "TriTech",            NULL,   NULL },
80 { 0x54584e00, 0xffffff00, "Texas Instruments",  NULL,   NULL },
81 { 0x56494100, 0xffffff00, "VIA Technologies",   NULL,   NULL },
82 { 0x57454300, 0xffffff00, "Winbond",            NULL,   NULL },
83 { 0x574d4c00, 0xffffff00, "Wolfson",            NULL,   NULL },
84 { 0x594d4800, 0xffffff00, "Yamaha",             NULL,   NULL },
85 { 0x83847600, 0xffffff00, "SigmaTel",           NULL,   NULL },
86 { 0,          0,          NULL,                 NULL,   NULL }
87 };
88
89 static const ac97_codec_id_t snd_ac97_codec_ids[] = {
90 { 0x414b4d00, 0xffffffff, "AK4540",             NULL,           NULL },
91 { 0x414b4d01, 0xffffffff, "AK4542",             NULL,           NULL },
92 { 0x414b4d02, 0xffffffff, "AK4543",             NULL,           NULL },
93 { 0x414b4d06, 0xffffffff, "AK4544A",            NULL,           NULL },
94 { 0x414b4d07, 0xffffffff, "AK4545",             NULL,           NULL },
95 { 0x41445303, 0xffffffff, "AD1819",             patch_ad1819,   NULL },
96 { 0x41445340, 0xffffffff, "AD1881",             patch_ad1881,   NULL },
97 { 0x41445348, 0xffffffff, "AD1881A",            patch_ad1881,   NULL },
98 { 0x41445360, 0xffffffff, "AD1885",             patch_ad1885,   NULL },
99 { 0x41445361, 0xffffffff, "AD1886",             patch_ad1886,   NULL },
100 { 0x41445362, 0xffffffff, "AD1887",             patch_ad1881,   NULL },
101 { 0x41445363, 0xffffffff, "AD1886A",            patch_ad1881,   NULL },
102 { 0x41445368, 0xffffffff, "AD1888",             patch_ad1888,   NULL },
103 { 0x41445370, 0xffffffff, "AD1980",             patch_ad1980,   NULL },
104 { 0x41445372, 0xffffffff, "AD1981A",            patch_ad1981a,  NULL },
105 { 0x41445374, 0xffffffff, "AD1981B",            patch_ad1981b,  NULL },
106 { 0x41445375, 0xffffffff, "AD1985",             patch_ad1985,   NULL },
107 { 0x41445378, 0xffffffff, "AD1986",             patch_ad1985,   NULL },
108 { 0x414c4300, 0xffffff00, "ALC100,100P",        NULL,           NULL },
109 { 0x414c4710, 0xfffffff0, "ALC200,200P",        NULL,           NULL },
110 { 0x414c4721, 0xffffffff, "ALC650D",            NULL,   NULL }, /* already patched */
111 { 0x414c4722, 0xffffffff, "ALC650E",            NULL,   NULL }, /* already patched */
112 { 0x414c4723, 0xffffffff, "ALC650F",            NULL,   NULL }, /* already patched */
113 { 0x414c4720, 0xfffffff0, "ALC650",             patch_alc650,   NULL },
114 { 0x414c4760, 0xfffffff0, "ALC655",             patch_alc655,   NULL },
115 { 0x414c4780, 0xfffffff0, "ALC658",             patch_alc655,   NULL },
116 { 0x414c4790, 0xfffffff0, "ALC850",             patch_alc850,   NULL },
117 { 0x414c4730, 0xffffffff, "ALC101",             NULL,           NULL },
118 { 0x414c4740, 0xfffffff0, "ALC202",             NULL,           NULL },
119 { 0x414c4750, 0xfffffff0, "ALC250",             NULL,           NULL },
120 { 0x414c4770, 0xfffffff0, "ALC203",             NULL,           NULL },
121 { 0x434d4941, 0xffffffff, "CMI9738",            patch_cm9738,   NULL },
122 { 0x434d4961, 0xffffffff, "CMI9739",            patch_cm9739,   NULL },
123 { 0x434d4969, 0xffffffff, "CMI9780",            patch_cm9780,   NULL },
124 { 0x434d4978, 0xffffffff, "CMI9761",            patch_cm9761,   NULL },
125 { 0x434d4982, 0xffffffff, "CMI9761",            patch_cm9761,   NULL },
126 { 0x434d4983, 0xffffffff, "CMI9761",            patch_cm9761,   NULL },
127 { 0x43525900, 0xfffffff8, "CS4297",             NULL,           NULL },
128 { 0x43525910, 0xfffffff8, "CS4297A",            patch_cirrus_spdif,     NULL },
129 { 0x43525920, 0xfffffff8, "CS4298",             patch_cirrus_spdif,             NULL },
130 { 0x43525928, 0xfffffff8, "CS4294",             NULL,           NULL },
131 { 0x43525930, 0xfffffff8, "CS4299",             patch_cirrus_cs4299,    NULL },
132 { 0x43525948, 0xfffffff8, "CS4201",             NULL,           NULL },
133 { 0x43525958, 0xfffffff8, "CS4205",             patch_cirrus_spdif,     NULL },
134 { 0x43525960, 0xfffffff8, "CS4291",             NULL,           NULL },
135 { 0x43525970, 0xfffffff8, "CS4202",             NULL,           NULL },
136 { 0x43585421, 0xffffffff, "HSD11246",           NULL,           NULL }, // SmartMC II
137 { 0x43585428, 0xfffffff8, "Cx20468",            patch_conexant, NULL }, // SmartAMC fixme: the mask might be different
138 { 0x44543031, 0xfffffff0, "DT0398",             NULL,           NULL },
139 { 0x454d4328, 0xffffffff, "28028",              NULL,           NULL },  // same as TR28028?
140 { 0x45838308, 0xffffffff, "ESS1988",            NULL,           NULL },
141 { 0x48525300, 0xffffff00, "HMP9701",            NULL,           NULL },
142 { 0x49434501, 0xffffffff, "ICE1230",            NULL,           NULL },
143 { 0x49434511, 0xffffffff, "ICE1232",            NULL,           NULL }, // alias VIA VT1611A?
144 { 0x49434514, 0xffffffff, "ICE1232A",           NULL,           NULL },
145 { 0x49434551, 0xffffffff, "VT1616",             patch_vt1616,   NULL }, 
146 { 0x49434552, 0xffffffff, "VT1616i",            patch_vt1616,   NULL }, // VT1616 compatible (chipset integrated)
147 { 0x49544520, 0xffffffff, "IT2226E",            NULL,           NULL },
148 { 0x49544561, 0xffffffff, "IT2646E",            patch_it2646,   NULL },
149 { 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL,           NULL }, // only guess --jk
150 { 0x4e534331, 0xffffffff, "LM4549",             NULL,           NULL },
151 { 0x4e534350, 0xffffffff, "LM4550",             NULL,           NULL },
152 { 0x50534304, 0xffffffff, "UCB1400",            NULL,           NULL },
153 { 0x53494c20, 0xffffffe0, "Si3036,8",           mpatch_si3036,  mpatch_si3036, AC97_MODEM_PATCH },
154 { 0x54524102, 0xffffffff, "TR28022",            NULL,           NULL },
155 { 0x54524106, 0xffffffff, "TR28026",            NULL,           NULL },
156 { 0x54524108, 0xffffffff, "TR28028",            patch_tritech_tr28028,  NULL }, // added by xin jin [07/09/99]
157 { 0x54524123, 0xffffffff, "TR28602",            NULL,           NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
158 { 0x54584e20, 0xffffffff, "TLC320AD9xC",        NULL,           NULL },
159 { 0x56494161, 0xffffffff, "VIA1612A",           NULL,           NULL }, // modified ICE1232 with S/PDIF
160 { 0x57454301, 0xffffffff, "W83971D",            NULL,           NULL },
161 { 0x574d4c00, 0xffffffff, "WM9701A",            NULL,           NULL },
162 { 0x574d4C03, 0xffffffff, "WM9703,WM9707,WM9708,WM9717", patch_wolfson03, NULL},
163 { 0x574d4C04, 0xffffffff, "WM9704M,WM9704Q",    patch_wolfson04, NULL},
164 { 0x574d4C05, 0xffffffff, "WM9705,WM9710",      patch_wolfson05, NULL},
165 { 0x574d4C09, 0xffffffff, "WM9709",             NULL,           NULL},
166 { 0x574d4C12, 0xffffffff, "WM9711,WM9712",      patch_wolfson11, NULL},
167 { 0x574d4c13, 0xffffffff, "WM9713,WM9714",      patch_wolfson13, NULL, AC97_DEFAULT_POWER_OFF},
168 { 0x594d4800, 0xffffffff, "YMF743",             NULL,           NULL },
169 { 0x594d4802, 0xffffffff, "YMF752",             NULL,           NULL },
170 { 0x594d4803, 0xffffffff, "YMF753",             patch_yamaha_ymf753,    NULL },
171 { 0x83847600, 0xffffffff, "STAC9700,83,84",     patch_sigmatel_stac9700,        NULL },
172 { 0x83847604, 0xffffffff, "STAC9701,3,4,5",     NULL,           NULL },
173 { 0x83847605, 0xffffffff, "STAC9704",           NULL,           NULL },
174 { 0x83847608, 0xffffffff, "STAC9708,11",        patch_sigmatel_stac9708,        NULL },
175 { 0x83847609, 0xffffffff, "STAC9721,23",        patch_sigmatel_stac9721,        NULL },
176 { 0x83847644, 0xffffffff, "STAC9744",           patch_sigmatel_stac9744,        NULL },
177 { 0x83847650, 0xffffffff, "STAC9750,51",        NULL,           NULL }, // patch?
178 { 0x83847652, 0xffffffff, "STAC9752,53",        NULL,           NULL }, // patch?
179 { 0x83847656, 0xffffffff, "STAC9756,57",        patch_sigmatel_stac9756,        NULL },
180 { 0x83847658, 0xffffffff, "STAC9758,59",        patch_sigmatel_stac9758,        NULL },
181 { 0x83847666, 0xffffffff, "STAC9766,67",        NULL,           NULL }, // patch?
182 { 0,          0,          NULL,                 NULL,           NULL }
183 };
184
185 const char *snd_ac97_stereo_enhancements[] =
186 {
187   /*   0 */ "No 3D Stereo Enhancement",
188   /*   1 */ "Analog Devices Phat Stereo",
189   /*   2 */ "Creative Stereo Enhancement",
190   /*   3 */ "National Semi 3D Stereo Enhancement",
191   /*   4 */ "YAMAHA Ymersion",
192   /*   5 */ "BBE 3D Stereo Enhancement",
193   /*   6 */ "Crystal Semi 3D Stereo Enhancement",
194   /*   7 */ "Qsound QXpander",
195   /*   8 */ "Spatializer 3D Stereo Enhancement",
196   /*   9 */ "SRS 3D Stereo Enhancement",
197   /*  10 */ "Platform Tech 3D Stereo Enhancement",
198   /*  11 */ "AKM 3D Audio",
199   /*  12 */ "Aureal Stereo Enhancement",
200   /*  13 */ "Aztech 3D Enhancement",
201   /*  14 */ "Binaura 3D Audio Enhancement",
202   /*  15 */ "ESS Technology Stereo Enhancement",
203   /*  16 */ "Harman International VMAx",
204   /*  17 */ "Nvidea/IC Ensemble/KS Waves 3D Stereo Enhancement",
205   /*  18 */ "Philips Incredible Sound",
206   /*  19 */ "Texas Instruments 3D Stereo Enhancement",
207   /*  20 */ "VLSI Technology 3D Stereo Enhancement",
208   /*  21 */ "TriTech 3D Stereo Enhancement",
209   /*  22 */ "Realtek 3D Stereo Enhancement",
210   /*  23 */ "Samsung 3D Stereo Enhancement",
211   /*  24 */ "Wolfson Microelectronics 3D Enhancement",
212   /*  25 */ "Delta Integration 3D Enhancement",
213   /*  26 */ "SigmaTel 3D Enhancement",
214   /*  27 */ "IC Ensemble/KS Waves",
215   /*  28 */ "Rockwell 3D Stereo Enhancement",
216   /*  29 */ "Reserved 29",
217   /*  30 */ "Reserved 30",
218   /*  31 */ "Reserved 31"
219 };
220
221 /*
222  * Shared AC97 controllers (ICH, ATIIXP...)
223  */
224 static DECLARE_MUTEX(shared_codec_mutex);
225 static ac97_t *shared_codec[AC97_SHARED_TYPES][4];
226
227
228 /*
229  *  I/O routines
230  */
231
232 static int snd_ac97_valid_reg(ac97_t *ac97, unsigned short reg)
233 {
234         if (ac97->limited_regs && ! test_bit(reg, ac97->reg_accessed))
235                 return 0;
236
237         /* filter some registers for buggy codecs */
238         switch (ac97->id) {
239         case AC97_ID_AK4540:
240         case AC97_ID_AK4542:
241                 if (reg <= 0x1c || reg == 0x20 || reg == 0x26 || reg >= 0x7c)
242                         return 1;
243                 return 0;
244         case AC97_ID_AD1819:    /* AD1819 */
245         case AC97_ID_AD1881:    /* AD1881 */
246         case AC97_ID_AD1881A:   /* AD1881A */
247                 if (reg >= 0x3a && reg <= 0x6e) /* 0x59 */
248                         return 0;
249                 return 1;
250         case AC97_ID_AD1885:    /* AD1885 */
251         case AC97_ID_AD1886:    /* AD1886 */
252         case AC97_ID_AD1886A:   /* AD1886A - !!verify!! --jk */
253         case AC97_ID_AD1887:    /* AD1887 - !!verify!! --jk */
254                 if (reg == 0x5a)
255                         return 1;
256                 if (reg >= 0x3c && reg <= 0x6e) /* 0x59 */
257                         return 0;
258                 return 1;
259         case AC97_ID_STAC9700:
260         case AC97_ID_STAC9704:
261         case AC97_ID_STAC9705:
262         case AC97_ID_STAC9708:
263         case AC97_ID_STAC9721:
264         case AC97_ID_STAC9744:
265         case AC97_ID_STAC9756:
266                 if (reg <= 0x3a || reg >= 0x5a)
267                         return 1;
268                 return 0;
269         }
270         return 1;
271 }
272
273 /**
274  * snd_ac97_write - write a value on the given register
275  * @ac97: the ac97 instance
276  * @reg: the register to change
277  * @value: the value to set
278  *
279  * Writes a value on the given register.  This will invoke the write
280  * callback directly after the register check.
281  * This function doesn't change the register cache unlike
282  * #snd_ca97_write_cache(), so use this only when you don't want to
283  * reflect the change to the suspend/resume state.
284  */
285 void snd_ac97_write(ac97_t *ac97, unsigned short reg, unsigned short value)
286 {
287         if (!snd_ac97_valid_reg(ac97, reg))
288                 return;
289         if ((ac97->id & 0xffffff00) == AC97_ID_ALC100) {
290                 /* Fix H/W bug of ALC100/100P */
291                 if (reg == AC97_MASTER || reg == AC97_HEADPHONE)
292                         ac97->bus->ops->write(ac97, AC97_RESET, 0);     /* reset audio codec */
293         }
294         ac97->bus->ops->write(ac97, reg, value);
295 }
296
297 /**
298  * snd_ac97_read - read a value from the given register
299  * 
300  * @ac97: the ac97 instance
301  * @reg: the register to read
302  *
303  * Reads a value from the given register.  This will invoke the read
304  * callback directly after the register check.
305  *
306  * Returns the read value.
307  */
308 unsigned short snd_ac97_read(ac97_t *ac97, unsigned short reg)
309 {
310         if (!snd_ac97_valid_reg(ac97, reg))
311                 return 0;
312         return ac97->bus->ops->read(ac97, reg);
313 }
314
315 /* read a register - return the cached value if already read */
316 static inline unsigned short snd_ac97_read_cache(ac97_t *ac97, unsigned short reg)
317 {
318         if (! test_bit(reg, ac97->reg_accessed)) {
319                 ac97->regs[reg] = ac97->bus->ops->read(ac97, reg);
320                 // set_bit(reg, ac97->reg_accessed);
321         }
322         return ac97->regs[reg];
323 }
324
325 /**
326  * snd_ac97_write_cache - write a value on the given register and update the cache
327  * @ac97: the ac97 instance
328  * @reg: the register to change
329  * @value: the value to set
330  *
331  * Writes a value on the given register and updates the register
332  * cache.  The cached values are used for the cached-read and the
333  * suspend/resume.
334  */
335 void snd_ac97_write_cache(ac97_t *ac97, unsigned short reg, unsigned short value)
336 {
337         if (!snd_ac97_valid_reg(ac97, reg))
338                 return;
339         down(&ac97->reg_mutex);
340         ac97->regs[reg] = value;
341         ac97->bus->ops->write(ac97, reg, value);
342         set_bit(reg, ac97->reg_accessed);
343         up(&ac97->reg_mutex);
344 }
345
346 /**
347  * snd_ac97_update - update the value on the given register
348  * @ac97: the ac97 instance
349  * @reg: the register to change
350  * @value: the value to set
351  *
352  * Compares the value with the register cache and updates the value
353  * only when the value is changed.
354  *
355  * Returns 1 if the value is changed, 0 if no change, or a negative
356  * code on failure.
357  */
358 int snd_ac97_update(ac97_t *ac97, unsigned short reg, unsigned short value)
359 {
360         int change;
361
362         if (!snd_ac97_valid_reg(ac97, reg))
363                 return -EINVAL;
364         down(&ac97->reg_mutex);
365         change = ac97->regs[reg] != value;
366         if (change) {
367                 ac97->regs[reg] = value;
368                 ac97->bus->ops->write(ac97, reg, value);
369         }
370         set_bit(reg, ac97->reg_accessed);
371         up(&ac97->reg_mutex);
372         return change;
373 }
374
375 /**
376  * snd_ac97_update_bits - update the bits on the given register
377  * @ac97: the ac97 instance
378  * @reg: the register to change
379  * @mask: the bit-mask to change
380  * @value: the value to set
381  *
382  * Updates the masked-bits on the given register only when the value
383  * is changed.
384  *
385  * Returns 1 if the bits are changed, 0 if no change, or a negative
386  * code on failure.
387  */
388 int snd_ac97_update_bits(ac97_t *ac97, unsigned short reg, unsigned short mask, unsigned short value)
389 {
390         int change;
391
392         if (!snd_ac97_valid_reg(ac97, reg))
393                 return -EINVAL;
394         down(&ac97->reg_mutex);
395         change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
396         up(&ac97->reg_mutex);
397         return change;
398 }
399
400 /* no lock version - see snd_ac97_updat_bits() */
401 int snd_ac97_update_bits_nolock(ac97_t *ac97, unsigned short reg,
402                                 unsigned short mask, unsigned short value)
403 {
404         int change;
405         unsigned short old, new;
406
407         old = snd_ac97_read_cache(ac97, reg);
408         new = (old & ~mask) | value;
409         change = old != new;
410         if (change) {
411                 ac97->regs[reg] = new;
412                 ac97->bus->ops->write(ac97, reg, new);
413         }
414         set_bit(reg, ac97->reg_accessed);
415         return change;
416 }
417
418 static int snd_ac97_ad18xx_update_pcm_bits(ac97_t *ac97, int codec, unsigned short mask, unsigned short value)
419 {
420         int change;
421         unsigned short old, new, cfg;
422
423         down(&ac97->page_mutex);
424         old = ac97->spec.ad18xx.pcmreg[codec];
425         new = (old & ~mask) | value;
426         change = old != new;
427         if (change) {
428                 down(&ac97->reg_mutex);
429                 cfg = snd_ac97_read_cache(ac97, AC97_AD_SERIAL_CFG);
430                 ac97->spec.ad18xx.pcmreg[codec] = new;
431                 /* select single codec */
432                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
433                                  (cfg & ~0x7000) |
434                                  ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
435                 /* update PCM bits */
436                 ac97->bus->ops->write(ac97, AC97_PCM, new);
437                 /* select all codecs */
438                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
439                                  cfg | 0x7000);
440                 up(&ac97->reg_mutex);
441         }
442         up(&ac97->page_mutex);
443         return change;
444 }
445
446 /*
447  * Controls
448  */
449
450 int snd_ac97_info_enum_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
451 {
452         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
453         
454         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
455         uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
456         uinfo->value.enumerated.items = e->mask;
457         
458         if (uinfo->value.enumerated.item > e->mask - 1)
459                 uinfo->value.enumerated.item = e->mask - 1;
460         strcpy(uinfo->value.enumerated.name, e->texts[uinfo->value.enumerated.item]);
461         return 0;
462 }
463
464 int snd_ac97_get_enum_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
465 {
466         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
467         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
468         unsigned short val, bitmask;
469         
470         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
471                 ;
472         val = snd_ac97_read_cache(ac97, e->reg);
473         ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
474         if (e->shift_l != e->shift_r)
475                 ucontrol->value.enumerated.item[1] = (val >> e->shift_r) & (bitmask - 1);
476
477         return 0;
478 }
479
480 int snd_ac97_put_enum_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
481 {
482         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
483         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
484         unsigned short val;
485         unsigned short mask, bitmask;
486         
487         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
488                 ;
489         if (ucontrol->value.enumerated.item[0] > e->mask - 1)
490                 return -EINVAL;
491         val = ucontrol->value.enumerated.item[0] << e->shift_l;
492         mask = (bitmask - 1) << e->shift_l;
493         if (e->shift_l != e->shift_r) {
494                 if (ucontrol->value.enumerated.item[1] > e->mask - 1)
495                         return -EINVAL;
496                 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
497                 mask |= (bitmask - 1) << e->shift_r;
498         }
499         return snd_ac97_update_bits(ac97, e->reg, mask, val);
500 }
501
502 /* save/restore ac97 v2.3 paging */
503 static int snd_ac97_page_save(ac97_t *ac97, int reg, snd_kcontrol_t *kcontrol)
504 {
505         int page_save = -1;
506         if ((kcontrol->private_value & (1<<25)) &&
507             (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23 &&
508             (reg >= 0x60 && reg < 0x70)) {
509                 unsigned short page = (kcontrol->private_value >> 26) & 0x0f;
510                 down(&ac97->page_mutex); /* lock paging */
511                 page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
512                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
513         }
514         return page_save;
515 }
516
517 static void snd_ac97_page_restore(ac97_t *ac97, int page_save)
518 {
519         if (page_save >= 0) {
520                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
521                 up(&ac97->page_mutex); /* unlock paging */
522         }
523 }
524
525 /* volume and switch controls */
526 int snd_ac97_info_volsw(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
527 {
528         int mask = (kcontrol->private_value >> 16) & 0xff;
529         int shift = (kcontrol->private_value >> 8) & 0x0f;
530         int rshift = (kcontrol->private_value >> 12) & 0x0f;
531
532         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
533         uinfo->count = shift == rshift ? 1 : 2;
534         uinfo->value.integer.min = 0;
535         uinfo->value.integer.max = mask;
536         return 0;
537 }
538
539 int snd_ac97_get_volsw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
540 {
541         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
542         int reg = kcontrol->private_value & 0xff;
543         int shift = (kcontrol->private_value >> 8) & 0x0f;
544         int rshift = (kcontrol->private_value >> 12) & 0x0f;
545         int mask = (kcontrol->private_value >> 16) & 0xff;
546         int invert = (kcontrol->private_value >> 24) & 0x01;
547         int page_save;
548
549         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
550         ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift) & mask;
551         if (shift != rshift)
552                 ucontrol->value.integer.value[1] = (snd_ac97_read_cache(ac97, reg) >> rshift) & mask;
553         if (invert) {
554                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
555                 if (shift != rshift)
556                         ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
557         }
558         snd_ac97_page_restore(ac97, page_save);
559         return 0;
560 }
561
562 int snd_ac97_put_volsw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
563 {
564         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
565         int reg = kcontrol->private_value & 0xff;
566         int shift = (kcontrol->private_value >> 8) & 0x0f;
567         int rshift = (kcontrol->private_value >> 12) & 0x0f;
568         int mask = (kcontrol->private_value >> 16) & 0xff;
569         int invert = (kcontrol->private_value >> 24) & 0x01;
570         int err, page_save;
571         unsigned short val, val2, val_mask;
572         
573         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
574         val = (ucontrol->value.integer.value[0] & mask);
575         if (invert)
576                 val = mask - val;
577         val_mask = mask << shift;
578         val = val << shift;
579         if (shift != rshift) {
580                 val2 = (ucontrol->value.integer.value[1] & mask);
581                 if (invert)
582                         val2 = mask - val2;
583                 val_mask |= mask << rshift;
584                 val |= val2 << rshift;
585         }
586         err = snd_ac97_update_bits(ac97, reg, val_mask, val);
587         snd_ac97_page_restore(ac97, page_save);
588         return err;
589 }
590
591 static const snd_kcontrol_new_t snd_ac97_controls_master_mono[2] = {
592 AC97_SINGLE("Master Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
593 AC97_SINGLE("Master Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1)
594 };
595
596 static const snd_kcontrol_new_t snd_ac97_controls_tone[2] = {
597 AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1),
598 AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1)
599 };
600
601 static const snd_kcontrol_new_t snd_ac97_controls_pc_beep[2] = {
602 AC97_SINGLE("PC Speaker Playback Switch", AC97_PC_BEEP, 15, 1, 1),
603 AC97_SINGLE("PC Speaker Playback Volume", AC97_PC_BEEP, 1, 15, 1)
604 };
605
606 static const snd_kcontrol_new_t snd_ac97_controls_mic_boost =
607         AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0);
608
609
610 static const char* std_rec_sel[] = {"Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone"};
611 static const char* std_3d_path[] = {"pre 3D", "post 3D"};
612 static const char* std_mix[] = {"Mix", "Mic"};
613 static const char* std_mic[] = {"Mic1", "Mic2"};
614
615 static const struct ac97_enum std_enum[] = {
616 AC97_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, std_rec_sel),
617 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, std_3d_path),
618 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, std_mix),
619 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, std_mic),
620 };
621
622 static const snd_kcontrol_new_t snd_ac97_control_capture_src = 
623 AC97_ENUM("Capture Source", std_enum[0]); 
624
625 static const snd_kcontrol_new_t snd_ac97_control_capture_vol =
626 AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0);
627
628 static const snd_kcontrol_new_t snd_ac97_controls_mic_capture[2] = {
629 AC97_SINGLE("Mic Capture Switch", AC97_REC_GAIN_MIC, 15, 1, 1),
630 AC97_SINGLE("Mic Capture Volume", AC97_REC_GAIN_MIC, 0, 15, 0)
631 };
632
633 typedef enum {
634         AC97_GENERAL_PCM_OUT = 0,
635         AC97_GENERAL_STEREO_ENHANCEMENT,
636         AC97_GENERAL_3D,
637         AC97_GENERAL_LOUDNESS,
638         AC97_GENERAL_MONO,
639         AC97_GENERAL_MIC,
640         AC97_GENERAL_LOOPBACK
641 } ac97_general_index_t;
642
643 static const snd_kcontrol_new_t snd_ac97_controls_general[7] = {
644 AC97_ENUM("PCM Out Path & Mute", std_enum[1]),
645 AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0),
646 AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
647 AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0),
648 AC97_ENUM("Mono Output Select", std_enum[2]),
649 AC97_ENUM("Mic Select", std_enum[3]),
650 AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0)
651 };
652
653 const snd_kcontrol_new_t snd_ac97_controls_3d[2] = {
654 AC97_SINGLE("3D Control - Center", AC97_3D_CONTROL, 8, 15, 0),
655 AC97_SINGLE("3D Control - Depth", AC97_3D_CONTROL, 0, 15, 0)
656 };
657
658 static const snd_kcontrol_new_t snd_ac97_controls_center[2] = {
659 AC97_SINGLE("Center Playback Switch", AC97_CENTER_LFE_MASTER, 7, 1, 1),
660 AC97_SINGLE("Center Playback Volume", AC97_CENTER_LFE_MASTER, 0, 31, 1)
661 };
662
663 static const snd_kcontrol_new_t snd_ac97_controls_lfe[2] = {
664 AC97_SINGLE("LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 1, 1),
665 AC97_SINGLE("LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 31, 1)
666 };
667
668 static const snd_kcontrol_new_t snd_ac97_control_eapd =
669 AC97_SINGLE("External Amplifier", AC97_POWERDOWN, 15, 1, 1);
670
671 static const snd_kcontrol_new_t snd_ac97_controls_modem_switches[2] = {
672 AC97_SINGLE("Off-hook Switch", AC97_GPIO_STATUS, 0, 1, 0),
673 AC97_SINGLE("Caller ID Switch", AC97_GPIO_STATUS, 2, 1, 0)
674 };
675
676 /* change the existing EAPD control as inverted */
677 static void set_inv_eapd(ac97_t *ac97, snd_kcontrol_t *kctl)
678 {
679         kctl->private_value = AC97_SINGLE_VALUE(AC97_POWERDOWN, 15, 1, 0);
680         snd_ac97_update_bits(ac97, AC97_POWERDOWN, (1<<15), (1<<15)); /* EAPD up */
681         ac97->scaps |= AC97_SCAP_INV_EAPD;
682 }
683
684 static int snd_ac97_spdif_mask_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
685 {
686         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
687         uinfo->count = 1;
688         return 0;
689 }
690                         
691 static int snd_ac97_spdif_cmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
692 {
693         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
694                                            IEC958_AES0_NONAUDIO |
695                                            IEC958_AES0_CON_EMPHASIS_5015 |
696                                            IEC958_AES0_CON_NOT_COPYRIGHT;
697         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
698                                            IEC958_AES1_CON_ORIGINAL;
699         ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
700         return 0;
701 }
702                         
703 static int snd_ac97_spdif_pmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
704 {
705         /* FIXME: AC'97 spec doesn't say which bits are used for what */
706         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
707                                            IEC958_AES0_NONAUDIO |
708                                            IEC958_AES0_PRO_FS |
709                                            IEC958_AES0_PRO_EMPHASIS_5015;
710         return 0;
711 }
712
713 static int snd_ac97_spdif_default_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
714 {
715         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
716
717         down(&ac97->reg_mutex);
718         ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff;
719         ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff;
720         ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff;
721         ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff;
722         up(&ac97->reg_mutex);
723         return 0;
724 }
725                         
726 static int snd_ac97_spdif_default_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
727 {
728         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
729         unsigned int new = 0;
730         unsigned short val = 0;
731         int change;
732
733         new = val = ucontrol->value.iec958.status[0] & (IEC958_AES0_PROFESSIONAL|IEC958_AES0_NONAUDIO);
734         if (ucontrol->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL) {
735                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_PRO_FS|IEC958_AES0_PRO_EMPHASIS_5015);
736                 switch (new & IEC958_AES0_PRO_FS) {
737                 case IEC958_AES0_PRO_FS_44100: val |= 0<<12; break;
738                 case IEC958_AES0_PRO_FS_48000: val |= 2<<12; break;
739                 case IEC958_AES0_PRO_FS_32000: val |= 3<<12; break;
740                 default:                       val |= 1<<12; break;
741                 }
742                 if ((new & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
743                         val |= 1<<3;
744         } else {
745                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT);
746                 new |= ((ucontrol->value.iec958.status[1] & (IEC958_AES1_CON_CATEGORY|IEC958_AES1_CON_ORIGINAL)) << 8);
747                 new |= ((ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) << 24);
748                 if ((new & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
749                         val |= 1<<3;
750                 if (!(new & IEC958_AES0_CON_NOT_COPYRIGHT))
751                         val |= 1<<2;
752                 val |= ((new >> 8) & 0xff) << 4;        // category + original
753                 switch ((new >> 24) & 0xff) {
754                 case IEC958_AES3_CON_FS_44100: val |= 0<<12; break;
755                 case IEC958_AES3_CON_FS_48000: val |= 2<<12; break;
756                 case IEC958_AES3_CON_FS_32000: val |= 3<<12; break;
757                 default:                       val |= 1<<12; break;
758                 }
759         }
760
761         down(&ac97->reg_mutex);
762         change = ac97->spdif_status != new;
763         ac97->spdif_status = new;
764
765         if (ac97->flags & AC97_CS_SPDIF) {
766                 int x = (val >> 12) & 0x03;
767                 switch (x) {
768                 case 0: x = 1; break;  // 44.1
769                 case 2: x = 0; break;  // 48.0
770                 default: x = 0; break; // illegal.
771                 }
772                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CSR_SPDIF, 0x3fff, ((val & 0xcfff) | (x << 12)));
773         } else if (ac97->flags & AC97_CX_SPDIF) {
774                 int v;
775                 v = new & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT) ? 0 : AC97_CXR_COPYRGT;
776                 v |= new & IEC958_AES0_NONAUDIO ? AC97_CXR_SPDIF_AC3 : AC97_CXR_SPDIF_PCM;
777                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CXR_AUDIO_MISC, 
778                                                       AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT,
779                                                       v);
780         } else {
781                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
782                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
783
784                 change |= snd_ac97_update_bits_nolock(ac97, AC97_SPDIF, 0x3fff, val);
785                 if (extst & AC97_EA_SPDIF) {
786                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
787                 }
788         }
789         up(&ac97->reg_mutex);
790
791         return change;
792 }
793
794 static int snd_ac97_put_spsa(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
795 {
796         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
797         int reg = kcontrol->private_value & 0xff;
798         int shift = (kcontrol->private_value >> 8) & 0xff;
799         int mask = (kcontrol->private_value >> 16) & 0xff;
800         // int invert = (kcontrol->private_value >> 24) & 0xff;
801         unsigned short value, old, new;
802         int change;
803
804         value = (ucontrol->value.integer.value[0] & mask);
805
806         down(&ac97->reg_mutex);
807         mask <<= shift;
808         value <<= shift;
809         old = snd_ac97_read_cache(ac97, reg);
810         new = (old & ~mask) | value;
811         change = old != new;
812
813         if (change) {
814                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
815                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
816                 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
817                 if (extst & AC97_EA_SPDIF)
818                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
819         }
820         up(&ac97->reg_mutex);
821         return change;
822 }
823
824 const snd_kcontrol_new_t snd_ac97_controls_spdif[5] = {
825         {
826                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
827                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
828                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
829                 .info = snd_ac97_spdif_mask_info,
830                 .get = snd_ac97_spdif_cmask_get,
831         },
832         {
833                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
834                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
835                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
836                 .info = snd_ac97_spdif_mask_info,
837                 .get = snd_ac97_spdif_pmask_get,
838         },
839         {
840                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
841                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
842                 .info = snd_ac97_spdif_mask_info,
843                 .get = snd_ac97_spdif_default_get,
844                 .put = snd_ac97_spdif_default_put,
845         },
846
847         AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),AC97_EXTENDED_STATUS, 2, 1, 0),
848         {
849                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
850                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA",
851                 .info = snd_ac97_info_volsw,
852                 .get = snd_ac97_get_volsw,
853                 .put = snd_ac97_put_spsa,
854                 .private_value = AC97_SINGLE_VALUE(AC97_EXTENDED_STATUS, 4, 3, 0)
855         },
856 };
857
858 #define AD18XX_PCM_BITS(xname, codec, lshift, rshift, mask) \
859 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_bits, \
860   .get = snd_ac97_ad18xx_pcm_get_bits, .put = snd_ac97_ad18xx_pcm_put_bits, \
861   .private_value = (codec) | ((lshift) << 8) | ((rshift) << 12) | ((mask) << 16) }
862
863 static int snd_ac97_ad18xx_pcm_info_bits(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
864 {
865         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
866         int mask = (kcontrol->private_value >> 16) & 0x0f;
867         int lshift = (kcontrol->private_value >> 8) & 0x0f;
868         int rshift = (kcontrol->private_value >> 12) & 0x0f;
869
870         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
871         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
872                 uinfo->count = 2;
873         else
874                 uinfo->count = 1;
875         uinfo->value.integer.min = 0;
876         uinfo->value.integer.max = mask;
877         return 0;
878 }
879
880 static int snd_ac97_ad18xx_pcm_get_bits(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
881 {
882         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
883         int codec = kcontrol->private_value & 3;
884         int lshift = (kcontrol->private_value >> 8) & 0x0f;
885         int rshift = (kcontrol->private_value >> 12) & 0x0f;
886         int mask = (kcontrol->private_value >> 16) & 0xff;
887         
888         ucontrol->value.integer.value[0] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> lshift) & mask);
889         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
890                 ucontrol->value.integer.value[1] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> rshift) & mask);
891         return 0;
892 }
893
894 static int snd_ac97_ad18xx_pcm_put_bits(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
895 {
896         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
897         int codec = kcontrol->private_value & 3;
898         int lshift = (kcontrol->private_value >> 8) & 0x0f;
899         int rshift = (kcontrol->private_value >> 12) & 0x0f;
900         int mask = (kcontrol->private_value >> 16) & 0xff;
901         unsigned short val, valmask;
902         
903         val = (mask - (ucontrol->value.integer.value[0] & mask)) << lshift;
904         valmask = mask << lshift;
905         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) {
906                 val |= (mask - (ucontrol->value.integer.value[1] & mask)) << rshift;
907                 valmask |= mask << rshift;
908         }
909         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, valmask, val);
910 }
911
912 #define AD18XX_PCM_VOLUME(xname, codec) \
913 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_volume, \
914   .get = snd_ac97_ad18xx_pcm_get_volume, .put = snd_ac97_ad18xx_pcm_put_volume, \
915   .private_value = codec }
916
917 static int snd_ac97_ad18xx_pcm_info_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
918 {
919         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
920         uinfo->count = 2;
921         uinfo->value.integer.min = 0;
922         uinfo->value.integer.max = 31;
923         return 0;
924 }
925
926 static int snd_ac97_ad18xx_pcm_get_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
927 {
928         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
929         int codec = kcontrol->private_value & 3;
930         
931         down(&ac97->page_mutex);
932         ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
933         ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
934         up(&ac97->page_mutex);
935         return 0;
936 }
937
938 static int snd_ac97_ad18xx_pcm_put_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
939 {
940         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
941         int codec = kcontrol->private_value & 3;
942         unsigned short val1, val2;
943         
944         val1 = 31 - (ucontrol->value.integer.value[0] & 31);
945         val2 = 31 - (ucontrol->value.integer.value[1] & 31);
946         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, 0x1f1f, (val1 << 8) | val2);
947 }
948
949 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_pcm[2] = {
950 AD18XX_PCM_BITS("PCM Playback Switch", 0, 15, 7, 1),
951 AD18XX_PCM_VOLUME("PCM Playback Volume", 0)
952 };
953
954 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_surround[2] = {
955 AD18XX_PCM_BITS("Surround Playback Switch", 1, 15, 7, 1),
956 AD18XX_PCM_VOLUME("Surround Playback Volume", 1)
957 };
958
959 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_center[2] = {
960 AD18XX_PCM_BITS("Center Playback Switch", 2, 15, 15, 1),
961 AD18XX_PCM_BITS("Center Playback Volume", 2, 8, 8, 31)
962 };
963
964 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_lfe[2] = {
965 AD18XX_PCM_BITS("LFE Playback Switch", 2, 7, 7, 1),
966 AD18XX_PCM_BITS("LFE Playback Volume", 2, 0, 0, 31)
967 };
968
969 /*
970  *
971  */
972
973 static void snd_ac97_powerdown(ac97_t *ac97);
974
975 static int snd_ac97_bus_free(ac97_bus_t *bus)
976 {
977         if (bus) {
978                 snd_ac97_bus_proc_done(bus);
979                 kfree(bus->pcms);
980                 if (bus->private_free)
981                         bus->private_free(bus);
982                 kfree(bus);
983         }
984         return 0;
985 }
986
987 static int snd_ac97_bus_dev_free(snd_device_t *device)
988 {
989         ac97_bus_t *bus = device->device_data;
990         return snd_ac97_bus_free(bus);
991 }
992
993 static int snd_ac97_free(ac97_t *ac97)
994 {
995         if (ac97) {
996                 snd_ac97_proc_done(ac97);
997                 if (ac97->bus) {
998                         ac97->bus->codec[ac97->num] = NULL;
999                         if (ac97->bus->shared_type) {
1000                                 down(&shared_codec_mutex);
1001                                 shared_codec[ac97->bus->shared_type-1][ac97->num] = NULL;
1002                                 up(&shared_codec_mutex);
1003                         }
1004                 }
1005                 if (ac97->private_free)
1006                         ac97->private_free(ac97);
1007                 kfree(ac97);
1008         }
1009         return 0;
1010 }
1011
1012 static int snd_ac97_dev_free(snd_device_t *device)
1013 {
1014         ac97_t *ac97 = device->device_data;
1015         snd_ac97_powerdown(ac97); /* for avoiding click noises during shut down */
1016         return snd_ac97_free(ac97);
1017 }
1018
1019 static int snd_ac97_try_volume_mix(ac97_t * ac97, int reg)
1020 {
1021         unsigned short val, mask = 0x8000;
1022
1023         if (! snd_ac97_valid_reg(ac97, reg))
1024                 return 0;
1025
1026         switch (reg) {
1027         case AC97_MASTER_TONE:
1028                 return ac97->caps & 0x04 ? 1 : 0;
1029         case AC97_HEADPHONE:
1030                 return ac97->caps & 0x10 ? 1 : 0;
1031         case AC97_REC_GAIN_MIC:
1032                 return ac97->caps & 0x01 ? 1 : 0;
1033         case AC97_3D_CONTROL:
1034                 if (ac97->caps & 0x7c00) {
1035                         val = snd_ac97_read(ac97, reg);
1036                         /* if nonzero - fixed and we can't set it */
1037                         return val == 0;
1038                 }
1039                 return 0;
1040         case AC97_CENTER_LFE_MASTER:    /* center */
1041                 if ((ac97->ext_id & AC97_EI_CDAC) == 0)
1042                         return 0;
1043                 break;
1044         case AC97_CENTER_LFE_MASTER+1:  /* lfe */
1045                 if ((ac97->ext_id & AC97_EI_LDAC) == 0)
1046                         return 0;
1047                 reg = AC97_CENTER_LFE_MASTER;
1048                 mask = 0x0080;
1049                 break;
1050         case AC97_SURROUND_MASTER:
1051                 if ((ac97->ext_id & AC97_EI_SDAC) == 0)
1052                         return 0;
1053                 break;
1054         }
1055
1056         if (ac97->limited_regs && test_bit(reg, ac97->reg_accessed))
1057                 return 1; /* allow without check */
1058
1059         val = snd_ac97_read(ac97, reg);
1060         if (!(val & mask)) {
1061                 /* nothing seems to be here - mute flag is not set */
1062                 /* try another test */
1063                 snd_ac97_write_cache(ac97, reg, val | mask);
1064                 val = snd_ac97_read(ac97, reg);
1065                 if (!(val & mask))
1066                         return 0;       /* nothing here */
1067         }
1068         return 1;               /* success, useable */
1069 }
1070
1071 static void check_volume_resolution(ac97_t *ac97, int reg, unsigned char *lo_max, unsigned char *hi_max)
1072 {
1073         unsigned short cbit[3] = { 0x20, 0x10, 0x01 };
1074         unsigned char max[3] = { 63, 31, 15 };
1075         int i;
1076
1077         *lo_max = *hi_max = 0;
1078         for (i = 0 ; i < ARRAY_SIZE(cbit); i++) {
1079                 unsigned short val;
1080                 snd_ac97_write(ac97, reg, 0x8080 | cbit[i] | (cbit[i] << 8));
1081                 val = snd_ac97_read(ac97, reg);
1082                 if (! *lo_max && (val & 0x7f) == cbit[i])
1083                         *lo_max = max[i];
1084                 if (! *hi_max && ((val >> 8) & 0x7f) == cbit[i])
1085                         *hi_max = max[i];
1086                 if (*lo_max && *hi_max)
1087                         break;
1088         }
1089 }
1090
1091 int snd_ac97_try_bit(ac97_t * ac97, int reg, int bit)
1092 {
1093         unsigned short mask, val, orig, res;
1094
1095         mask = 1 << bit;
1096         orig = snd_ac97_read(ac97, reg);
1097         val = orig ^ mask;
1098         snd_ac97_write(ac97, reg, val);
1099         res = snd_ac97_read(ac97, reg);
1100         snd_ac97_write_cache(ac97, reg, orig);
1101         return res == val;
1102 }
1103
1104 /* check the volume resolution of center/lfe */
1105 static void snd_ac97_change_volume_params2(ac97_t * ac97, int reg, int shift, unsigned char *max)
1106 {
1107         unsigned short val, val1;
1108
1109         *max = 63;
1110         val = 0x8080 | (0x20 << shift);
1111         snd_ac97_write(ac97, reg, val);
1112         val1 = snd_ac97_read(ac97, reg);
1113         if (val != val1) {
1114                 *max = 31;
1115         }
1116         /* reset volume to zero */
1117         snd_ac97_write_cache(ac97, reg, 0x8080);
1118 }
1119
1120 static inline int printable(unsigned int x)
1121 {
1122         x &= 0xff;
1123         if (x < ' ' || x >= 0x71) {
1124                 if (x <= 0x89)
1125                         return x - 0x71 + 'A';
1126                 return '?';
1127         }
1128         return x;
1129 }
1130
1131 snd_kcontrol_t *snd_ac97_cnew(const snd_kcontrol_new_t *_template, ac97_t * ac97)
1132 {
1133         snd_kcontrol_new_t template;
1134         memcpy(&template, _template, sizeof(template));
1135         snd_runtime_check(!template.index, return NULL);
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  */
1143 static int snd_ac97_cmute_new_stereo(snd_card_t *card, char *name, int reg, int check_stereo, ac97_t *ac97)
1144 {
1145         snd_kcontrol_t *kctl;
1146         int err;
1147         unsigned short val, val1, mute_mask;
1148
1149         if (! snd_ac97_valid_reg(ac97, reg))
1150                 return 0;
1151
1152         mute_mask = 0x8000;
1153         val = snd_ac97_read(ac97, reg);
1154         if (check_stereo || (ac97->flags & AC97_STEREO_MUTES)) {
1155                 /* check whether both mute bits work */
1156                 val1 = val | 0x8080;
1157                 snd_ac97_write(ac97, reg, val1);
1158                 if (val1 == snd_ac97_read(ac97, reg))
1159                         mute_mask = 0x8080;
1160         }
1161         if (mute_mask == 0x8080) {
1162                 snd_kcontrol_new_t tmp = AC97_DOUBLE(name, reg, 15, 7, 1, 1);
1163                 tmp.index = ac97->num;
1164                 kctl = snd_ctl_new1(&tmp, ac97);
1165         } else {
1166                 snd_kcontrol_new_t tmp = AC97_SINGLE(name, reg, 15, 1, 1);
1167                 tmp.index = ac97->num;
1168                 kctl = snd_ctl_new1(&tmp, ac97);
1169         }
1170         err = snd_ctl_add(card, kctl);
1171         if (err < 0)
1172                 return err;
1173         /* mute as default */
1174         snd_ac97_write_cache(ac97, reg, val | mute_mask);
1175         return 0;
1176 }
1177
1178 /*
1179  * create a volume for normal stereo/mono controls
1180  */
1181 static int snd_ac97_cvol_new(snd_card_t *card, char *name, int reg, unsigned int lo_max,
1182                              unsigned int hi_max, ac97_t *ac97)
1183 {
1184         int err;
1185         snd_kcontrol_t *kctl;
1186
1187         if (! snd_ac97_valid_reg(ac97, reg))
1188                 return 0;
1189         if (hi_max) {
1190                 /* invert */
1191                 snd_kcontrol_new_t tmp = AC97_DOUBLE(name, reg, 8, 0, lo_max, 1);
1192                 tmp.index = ac97->num;
1193                 kctl = snd_ctl_new1(&tmp, ac97);
1194         } else {
1195                 /* invert */
1196                 snd_kcontrol_new_t tmp = AC97_SINGLE(name, reg, 0, lo_max, 1);
1197                 tmp.index = ac97->num;
1198                 kctl = snd_ctl_new1(&tmp, ac97);
1199         }
1200         err = snd_ctl_add(card, kctl);
1201         if (err < 0)
1202                 return err;
1203         snd_ac97_write_cache(ac97, reg,
1204                              (snd_ac97_read(ac97, reg) & 0x8080) |
1205                              lo_max | (hi_max << 8));
1206         return 0;
1207 }
1208
1209 /*
1210  * create a mute-switch and a volume for normal stereo/mono controls
1211  */
1212 static int snd_ac97_cmix_new_stereo(snd_card_t *card, const char *pfx, int reg, int check_stereo, ac97_t *ac97)
1213 {
1214         int err;
1215         char name[44];
1216         unsigned char lo_max, hi_max;
1217
1218         if (! snd_ac97_valid_reg(ac97, reg))
1219                 return 0;
1220
1221         if (snd_ac97_try_bit(ac97, reg, 15)) {
1222                 sprintf(name, "%s Switch", pfx);
1223                 if ((err = snd_ac97_cmute_new_stereo(card, name, reg, check_stereo, ac97)) < 0)
1224                         return err;
1225         }
1226         check_volume_resolution(ac97, reg, &lo_max, &hi_max);
1227         if (lo_max) {
1228                 sprintf(name, "%s Volume", pfx);
1229                 if ((err = snd_ac97_cvol_new(card, name, reg, lo_max, hi_max, ac97)) < 0)
1230                         return err;
1231         }
1232         return 0;
1233 }
1234
1235 #define snd_ac97_cmix_new(card, pfx, reg, ac97) snd_ac97_cmix_new_stereo(card, pfx, reg, 0, ac97)
1236 #define snd_ac97_cmute_new(card, name, reg, ac97)       snd_ac97_cmute_new_stereo(card, name, reg, 0, ac97)
1237
1238 static unsigned int snd_ac97_determine_spdif_rates(ac97_t *ac97);
1239
1240 static int snd_ac97_mixer_build(ac97_t * ac97)
1241 {
1242         snd_card_t *card = ac97->bus->card;
1243         snd_kcontrol_t *kctl;
1244         int err;
1245         unsigned int idx;
1246         unsigned char max;
1247
1248         /* build master controls */
1249         /* AD claims to remove this control from AD1887, although spec v2.2 does not allow this */
1250         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER)) {
1251                 if (ac97->flags & AC97_HAS_NO_MASTER_VOL)
1252                         err = snd_ac97_cmute_new(card, "Master Playback Switch", AC97_MASTER, ac97);
1253                 else
1254                         err = snd_ac97_cmix_new(card, "Master Playback", AC97_MASTER, ac97);
1255                 if (err < 0)
1256                         return err;
1257         }
1258
1259         ac97->regs[AC97_CENTER_LFE_MASTER] = 0x8080;
1260
1261         /* build center controls */
1262         if (snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER)) {
1263                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_center[0], ac97))) < 0)
1264                         return err;
1265                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_center[1], ac97))) < 0)
1266                         return err;
1267                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 0, &max);
1268                 kctl->private_value &= ~(0xff << 16);
1269                 kctl->private_value |= (int)max << 16;
1270                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max);
1271         }
1272
1273         /* build LFE controls */
1274         if (snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER+1)) {
1275                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_lfe[0], ac97))) < 0)
1276                         return err;
1277                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_lfe[1], ac97))) < 0)
1278                         return err;
1279                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 8, &max);
1280                 kctl->private_value &= ~(0xff << 16);
1281                 kctl->private_value |= (int)max << 16;
1282                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max << 8);
1283         }
1284
1285         /* build surround controls */
1286         if (snd_ac97_try_volume_mix(ac97, AC97_SURROUND_MASTER)) {
1287                 /* Surround Master (0x38) is with stereo mutes */
1288                 if ((err = snd_ac97_cmix_new_stereo(card, "Surround Playback", AC97_SURROUND_MASTER, 1, ac97)) < 0)
1289                         return err;
1290         }
1291
1292         /* build headphone controls */
1293         if (snd_ac97_try_volume_mix(ac97, AC97_HEADPHONE)) {
1294                 if ((err = snd_ac97_cmix_new(card, "Headphone Playback", AC97_HEADPHONE, ac97)) < 0)
1295                         return err;
1296         }
1297         
1298         /* build master mono controls */
1299         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_MONO)) {
1300                 if ((err = snd_ac97_cmix_new(card, "Master Mono Playback", AC97_MASTER_MONO, ac97)) < 0)
1301                         return err;
1302         }
1303         
1304         /* build master tone controls */
1305         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_TONE)) {
1306                 for (idx = 0; idx < 2; idx++) {
1307                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97))) < 0)
1308                                 return err;
1309                         if (ac97->id == AC97_ID_YMF753) {
1310                                 kctl->private_value &= ~(0xff << 16);
1311                                 kctl->private_value |= 7 << 16;
1312                         }
1313                 }
1314                 snd_ac97_write_cache(ac97, AC97_MASTER_TONE, 0x0f0f);
1315         }
1316         
1317         /* build PC Speaker controls */
1318         if (!(ac97->flags & AC97_HAS_NO_PC_BEEP) && 
1319                 ((ac97->flags & AC97_HAS_PC_BEEP) ||
1320             snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP))) {
1321                 for (idx = 0; idx < 2; idx++)
1322                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_pc_beep[idx], ac97))) < 0)
1323                                 return err;
1324                 snd_ac97_write_cache(ac97, AC97_PC_BEEP,
1325                                      snd_ac97_read(ac97, AC97_PC_BEEP) | 0x801e);
1326         }
1327         
1328         /* build Phone controls */
1329         if (!(ac97->flags & AC97_HAS_NO_PHONE)) {
1330                 if (snd_ac97_try_volume_mix(ac97, AC97_PHONE)) {
1331                         if ((err = snd_ac97_cmix_new(card, "Phone Playback", AC97_PHONE, ac97)) < 0)
1332                                 return err;
1333                 }
1334         }
1335         
1336         /* build MIC controls */
1337         if (snd_ac97_try_volume_mix(ac97, AC97_MIC)) {
1338                 if ((err = snd_ac97_cmix_new(card, "Mic Playback", AC97_MIC, ac97)) < 0)
1339                         return err;
1340                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_boost, ac97))) < 0)
1341                         return err;
1342         }
1343
1344         /* build Line controls */
1345         if (snd_ac97_try_volume_mix(ac97, AC97_LINE)) {
1346                 if ((err = snd_ac97_cmix_new(card, "Line Playback", AC97_LINE, ac97)) < 0)
1347                         return err;
1348         }
1349         
1350         /* build CD controls */
1351         if (!(ac97->flags & AC97_HAS_NO_CD)) {
1352                 if (snd_ac97_try_volume_mix(ac97, AC97_CD)) {
1353                         if ((err = snd_ac97_cmix_new(card, "CD Playback", AC97_CD, ac97)) < 0)
1354                                 return err;
1355                 }
1356         }
1357         
1358         /* build Video controls */
1359         if (!(ac97->flags & AC97_HAS_NO_VIDEO)) {
1360                 if (snd_ac97_try_volume_mix(ac97, AC97_VIDEO)) {
1361                         if ((err = snd_ac97_cmix_new(card, "Video Playback", AC97_VIDEO, ac97)) < 0)
1362                                 return err;
1363                 }
1364         }
1365
1366         /* build Aux controls */
1367         if (snd_ac97_try_volume_mix(ac97, AC97_AUX)) {
1368                 if ((err = snd_ac97_cmix_new(card, "Aux Playback", AC97_AUX, ac97)) < 0)
1369                         return err;
1370         }
1371
1372         /* build PCM controls */
1373         if (ac97->flags & AC97_AD_MULTI) {
1374                 unsigned short init_val;
1375                 if (ac97->flags & AC97_STEREO_MUTES)
1376                         init_val = 0x9f9f;
1377                 else
1378                         init_val = 0x9f1f;
1379                 for (idx = 0; idx < 2; idx++)
1380                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_pcm[idx], ac97))) < 0)
1381                                 return err;
1382                 ac97->spec.ad18xx.pcmreg[0] = init_val;
1383                 if (ac97->scaps & AC97_SCAP_SURROUND_DAC) {
1384                         for (idx = 0; idx < 2; idx++)
1385                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_surround[idx], ac97))) < 0)
1386                                         return err;
1387                         ac97->spec.ad18xx.pcmreg[1] = init_val;
1388                 }
1389                 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) {
1390                         for (idx = 0; idx < 2; idx++)
1391                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_center[idx], ac97))) < 0)
1392                                         return err;
1393                         for (idx = 0; idx < 2; idx++)
1394                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_lfe[idx], ac97))) < 0)
1395                                         return err;
1396                         ac97->spec.ad18xx.pcmreg[2] = init_val;
1397                 }
1398                 snd_ac97_write_cache(ac97, AC97_PCM, init_val);
1399         } else {
1400                 if (ac97->flags & AC97_HAS_NO_PCM_VOL)
1401                         err = snd_ac97_cmute_new(card, "PCM Playback Switch", AC97_PCM, ac97);
1402                 else
1403                         err = snd_ac97_cmix_new(card, "PCM Playback", AC97_PCM, ac97);
1404                 if (err < 0)
1405                         return err;
1406         }
1407
1408         /* build Capture controls */
1409         if (!(ac97->flags & AC97_HAS_NO_REC_GAIN)) {
1410                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_src, ac97))) < 0)
1411                         return err;
1412                 if (snd_ac97_try_bit(ac97, AC97_REC_GAIN, 15)) {
1413                         if ((err = snd_ac97_cmute_new(card, "Capture Switch", AC97_REC_GAIN, ac97)) < 0)
1414                                 return err;
1415                 }
1416                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_vol, ac97))) < 0)
1417                         return err;
1418                 snd_ac97_write_cache(ac97, AC97_REC_SEL, 0x0000);
1419                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x0000);
1420         }
1421         /* build MIC Capture controls */
1422         if (snd_ac97_try_volume_mix(ac97, AC97_REC_GAIN_MIC)) {
1423                 for (idx = 0; idx < 2; idx++)
1424                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_capture[idx], ac97))) < 0)
1425                                 return err;
1426                 snd_ac97_write_cache(ac97, AC97_REC_GAIN_MIC, 0x0000);
1427         }
1428
1429         /* build PCM out path & mute control */
1430         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 15)) {
1431                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_PCM_OUT], ac97))) < 0)
1432                         return err;
1433         }
1434
1435         /* build Simulated Stereo Enhancement control */
1436         if (ac97->caps & 0x0008) {
1437                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_STEREO_ENHANCEMENT], ac97))) < 0)
1438                         return err;
1439         }
1440
1441         /* build 3D Stereo Enhancement control */
1442         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 13)) {
1443                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_3D], ac97))) < 0)
1444                         return err;
1445         }
1446
1447         /* build Loudness control */
1448         if (ac97->caps & 0x0020) {
1449                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOUDNESS], ac97))) < 0)
1450                         return err;
1451         }
1452
1453         /* build Mono output select control */
1454         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 9)) {
1455                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MONO], ac97))) < 0)
1456                         return err;
1457         }
1458
1459         /* build Mic select control */
1460         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 8)) {
1461                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MIC], ac97))) < 0)
1462                         return err;
1463         }
1464
1465         /* build ADC/DAC loopback control */
1466         if (enable_loopback && snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 7)) {
1467                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOOPBACK], ac97))) < 0)
1468                         return err;
1469         }
1470
1471         snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, ~AC97_GP_DRSS_MASK, 0x0000);
1472
1473         /* build 3D controls */
1474         if (ac97->build_ops->build_3d) {
1475                 ac97->build_ops->build_3d(ac97);
1476         } else {
1477                 if (snd_ac97_try_volume_mix(ac97, AC97_3D_CONTROL)) {
1478                         unsigned short val;
1479                         val = 0x0707;
1480                         snd_ac97_write(ac97, AC97_3D_CONTROL, val);
1481                         val = snd_ac97_read(ac97, AC97_3D_CONTROL);
1482                         val = val == 0x0606;
1483                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
1484                                 return err;
1485                         if (val)
1486                                 kctl->private_value = AC97_3D_CONTROL | (9 << 8) | (7 << 16);
1487                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[1], ac97))) < 0)
1488                                 return err;
1489                         if (val)
1490                                 kctl->private_value = AC97_3D_CONTROL | (1 << 8) | (7 << 16);
1491                         snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
1492                 }
1493         }
1494
1495         /* build S/PDIF controls */
1496         if ((ac97->ext_id & AC97_EI_SPDIF) && !(ac97->scaps & AC97_SCAP_NO_SPDIF)) {
1497                 if (ac97->build_ops->build_spdif) {
1498                         if ((err = ac97->build_ops->build_spdif(ac97)) < 0)
1499                                 return err;
1500                 } else {
1501                         for (idx = 0; idx < 5; idx++)
1502                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_spdif[idx], ac97))) < 0)
1503                                         return err;
1504                         if (ac97->build_ops->build_post_spdif) {
1505                                 if ((err = ac97->build_ops->build_post_spdif(ac97)) < 0)
1506                                         return err;
1507                         }
1508                         /* set default PCM S/PDIF params */
1509                         /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
1510                         snd_ac97_write_cache(ac97, AC97_SPDIF, 0x2a20);
1511                         ac97->rates[AC97_RATES_SPDIF] = snd_ac97_determine_spdif_rates(ac97);
1512                 }
1513                 ac97->spdif_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
1514         }
1515         
1516         /* build chip specific controls */
1517         if (ac97->build_ops->build_specific)
1518                 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1519                         return err;
1520
1521         if (snd_ac97_try_bit(ac97, AC97_POWERDOWN, 15)) {
1522                 kctl = snd_ac97_cnew(&snd_ac97_control_eapd, ac97);
1523                 if (! kctl)
1524                         return -ENOMEM;
1525                 if (ac97->scaps & AC97_SCAP_INV_EAPD)
1526                         set_inv_eapd(ac97, kctl);
1527                 if ((err = snd_ctl_add(card, kctl)) < 0)
1528                         return err;
1529         }
1530
1531         return 0;
1532 }
1533
1534 static int snd_ac97_modem_build(snd_card_t * card, ac97_t * ac97)
1535 {
1536         int err, idx;
1537
1538         //printk("AC97_GPIO_CFG = %x\n",snd_ac97_read(ac97,AC97_GPIO_CFG));
1539         snd_ac97_write(ac97, AC97_GPIO_CFG, 0xffff & ~(AC97_GPIO_LINE1_OH));
1540         snd_ac97_write(ac97, AC97_GPIO_POLARITY, 0xffff & ~(AC97_GPIO_LINE1_OH));
1541         snd_ac97_write(ac97, AC97_GPIO_STICKY, 0xffff);
1542         snd_ac97_write(ac97, AC97_GPIO_WAKEUP, 0x0);
1543         snd_ac97_write(ac97, AC97_MISC_AFE, 0x0);
1544
1545         /* build modem switches */
1546         for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_modem_switches); idx++)
1547                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_modem_switches[idx], ac97))) < 0)
1548                         return err;
1549
1550         /* build chip specific controls */
1551         if (ac97->build_ops->build_specific)
1552                 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1553                         return err;
1554
1555         return 0;
1556 }
1557
1558 static int snd_ac97_test_rate(ac97_t *ac97, int reg, int shadow_reg, int rate)
1559 {
1560         unsigned short val;
1561         unsigned int tmp;
1562
1563         tmp = ((unsigned int)rate * ac97->bus->clock) / 48000;
1564         snd_ac97_write_cache(ac97, reg, tmp & 0xffff);
1565         if (shadow_reg)
1566                 snd_ac97_write_cache(ac97, shadow_reg, tmp & 0xffff);
1567         val = snd_ac97_read(ac97, reg);
1568         return val == (tmp & 0xffff);
1569 }
1570
1571 static void snd_ac97_determine_rates(ac97_t *ac97, int reg, int shadow_reg, unsigned int *r_result)
1572 {
1573         unsigned int result = 0;
1574         unsigned short saved;
1575
1576         if (ac97->bus->no_vra) {
1577                 *r_result = SNDRV_PCM_RATE_48000;
1578                 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1579                     reg == AC97_PCM_FRONT_DAC_RATE)
1580                         *r_result |= SNDRV_PCM_RATE_96000;
1581                 return;
1582         }
1583
1584         saved = snd_ac97_read(ac97, reg);
1585         if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE)
1586                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1587                                      AC97_EA_DRA, 0);
1588         /* test a non-standard rate */
1589         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11000))
1590                 result |= SNDRV_PCM_RATE_CONTINUOUS;
1591         /* let's try to obtain standard rates */
1592         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 8000))
1593                 result |= SNDRV_PCM_RATE_8000;
1594         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11025))
1595                 result |= SNDRV_PCM_RATE_11025;
1596         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 16000))
1597                 result |= SNDRV_PCM_RATE_16000;
1598         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 22050))
1599                 result |= SNDRV_PCM_RATE_22050;
1600         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 32000))
1601                 result |= SNDRV_PCM_RATE_32000;
1602         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 44100))
1603                 result |= SNDRV_PCM_RATE_44100;
1604         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 48000))
1605                 result |= SNDRV_PCM_RATE_48000;
1606         if ((ac97->flags & AC97_DOUBLE_RATE) &&
1607             reg == AC97_PCM_FRONT_DAC_RATE) {
1608                 /* test standard double rates */
1609                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1610                                      AC97_EA_DRA, AC97_EA_DRA);
1611                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 64000 / 2))
1612                         result |= SNDRV_PCM_RATE_64000;
1613                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 88200 / 2))
1614                         result |= SNDRV_PCM_RATE_88200;
1615                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 96000 / 2))
1616                         result |= SNDRV_PCM_RATE_96000;
1617                 /* some codecs don't support variable double rates */
1618                 if (!snd_ac97_test_rate(ac97, reg, shadow_reg, 76100 / 2))
1619                         result &= ~SNDRV_PCM_RATE_CONTINUOUS;
1620                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1621                                      AC97_EA_DRA, 0);
1622         }
1623         /* restore the default value */
1624         snd_ac97_write_cache(ac97, reg, saved);
1625         if (shadow_reg)
1626                 snd_ac97_write_cache(ac97, shadow_reg, saved);
1627         *r_result = result;
1628 }
1629
1630 /* check AC97_SPDIF register to accept which sample rates */
1631 static unsigned int snd_ac97_determine_spdif_rates(ac97_t *ac97)
1632 {
1633         unsigned int result = 0;
1634         int i;
1635         static unsigned short ctl_bits[] = {
1636                 AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K
1637         };
1638         static unsigned int rate_bits[] = {
1639                 SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000
1640         };
1641
1642         for (i = 0; i < (int)ARRAY_SIZE(ctl_bits); i++) {
1643                 snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, ctl_bits[i]);
1644                 if ((snd_ac97_read(ac97, AC97_SPDIF) & AC97_SC_SPSR_MASK) == ctl_bits[i])
1645                         result |= rate_bits[i];
1646         }
1647         return result;
1648 }
1649
1650 /* look for the codec id table matching with the given id */
1651 static const ac97_codec_id_t *look_for_codec_id(const ac97_codec_id_t *table,
1652                                                 unsigned int id)
1653 {
1654         const ac97_codec_id_t *pid;
1655
1656         for (pid = table; pid->id; pid++)
1657                 if (pid->id == (id & pid->mask))
1658                         return pid;
1659         return NULL;
1660 }
1661
1662 void snd_ac97_get_name(ac97_t *ac97, unsigned int id, char *name, int modem)
1663 {
1664         const ac97_codec_id_t *pid;
1665
1666         sprintf(name, "0x%x %c%c%c", id,
1667                 printable(id >> 24),
1668                 printable(id >> 16),
1669                 printable(id >> 8));
1670         pid = look_for_codec_id(snd_ac97_codec_id_vendors, id);
1671         if (! pid)
1672                 return;
1673
1674         strcpy(name, pid->name);
1675         if (ac97 && pid->patch) {
1676                 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1677                     (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1678                         pid->patch(ac97);
1679         } 
1680
1681         pid = look_for_codec_id(snd_ac97_codec_ids, id);
1682         if (pid) {
1683                 strcat(name, " ");
1684                 strcat(name, pid->name);
1685                 if (pid->mask != 0xffffffff)
1686                         sprintf(name + strlen(name), " rev %d", id & ~pid->mask);
1687                 if (ac97 && pid->patch) {
1688                         if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1689                             (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1690                                 pid->patch(ac97);
1691                 }
1692         } else
1693                 sprintf(name + strlen(name), " id %x", id & 0xff);
1694 }
1695
1696 /**
1697  * snd_ac97_get_short_name - retrieve codec name
1698  * @ac97: the codec instance
1699  *
1700  * Returns the short identifying name of the codec.
1701  */
1702 const char *snd_ac97_get_short_name(ac97_t *ac97)
1703 {
1704         const ac97_codec_id_t *pid;
1705
1706         for (pid = snd_ac97_codec_ids; pid->id; pid++)
1707                 if (pid->id == (ac97->id & pid->mask))
1708                         return pid->name;
1709         return "unknown codec";
1710 }
1711
1712
1713 /* wait for a while until registers are accessible after RESET
1714  * return 0 if ok, negative not ready
1715  */
1716 static int ac97_reset_wait(ac97_t *ac97, int timeout, int with_modem)
1717 {
1718         unsigned long end_time;
1719         unsigned short val;
1720
1721         end_time = jiffies + timeout;
1722         do {
1723                 
1724                 /* use preliminary reads to settle the communication */
1725                 snd_ac97_read(ac97, AC97_RESET);
1726                 snd_ac97_read(ac97, AC97_VENDOR_ID1);
1727                 snd_ac97_read(ac97, AC97_VENDOR_ID2);
1728                 /* modem? */
1729                 if (with_modem) {
1730                         val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1731                         if (val != 0xffff && (val & 1) != 0)
1732                                 return 0;
1733                 }
1734                 if (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) {
1735                         /* probably only Xbox issue - all registers are read as zero */
1736                         val = snd_ac97_read(ac97, AC97_VENDOR_ID1);
1737                         if (val != 0 && val != 0xffff)
1738                                 return 0;
1739                 } else {
1740                         /* because the PCM or MASTER volume registers can be modified,
1741                          * the REC_GAIN register is used for tests
1742                          */
1743                         /* test if we can write to the record gain volume register */
1744                         snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
1745                         if ((snd_ac97_read(ac97, AC97_REC_GAIN) & 0x7fff) == 0x0a05)
1746                                 return 0;
1747                 }
1748                 set_current_state(TASK_UNINTERRUPTIBLE);
1749                 schedule_timeout(1);
1750         } while (time_after_eq(end_time, jiffies));
1751         return -ENODEV;
1752 }
1753
1754 /**
1755  * snd_ac97_bus - create an AC97 bus component
1756  * @card: the card instance
1757  * @num: the bus number
1758  * @ops: the bus callbacks table
1759  * @private_data: private data pointer for the new instance
1760  * @rbus: the pointer to store the new AC97 bus instance.
1761  *
1762  * Creates an AC97 bus component.  An ac97_bus_t instance is newly
1763  * allocated and initialized.
1764  *
1765  * The ops table must include valid callbacks (at least read and
1766  * write).  The other callbacks, wait and reset, are not mandatory.
1767  * 
1768  * The clock is set to 48000.  If another clock is needed, set
1769  * (*rbus)->clock manually.
1770  *
1771  * The AC97 bus instance is registered as a low-level device, so you don't
1772  * have to release it manually.
1773  *
1774  * Returns zero if successful, or a negative error code on failure.
1775  */
1776 int snd_ac97_bus(snd_card_t *card, int num, ac97_bus_ops_t *ops,
1777                  void *private_data, ac97_bus_t **rbus)
1778 {
1779         int err;
1780         ac97_bus_t *bus;
1781         static snd_device_ops_t dev_ops = {
1782                 .dev_free =     snd_ac97_bus_dev_free,
1783         };
1784
1785         snd_assert(card != NULL, return -EINVAL);
1786         snd_assert(rbus != NULL, return -EINVAL);
1787         bus = kcalloc(1, sizeof(*bus), GFP_KERNEL);
1788         if (bus == NULL)
1789                 return -ENOMEM;
1790         bus->card = card;
1791         bus->num = num;
1792         bus->ops = ops;
1793         bus->private_data = private_data;
1794         bus->clock = 48000;
1795         spin_lock_init(&bus->bus_lock);
1796         snd_ac97_bus_proc_init(bus);
1797         if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
1798                 snd_ac97_bus_free(bus);
1799                 return err;
1800         }
1801         *rbus = bus;
1802         return 0;
1803 }
1804
1805 /* build_ops to do nothing */
1806 static struct snd_ac97_build_ops null_build_ops;
1807
1808 /**
1809  * snd_ac97_mixer - create an Codec97 component
1810  * @bus: the AC97 bus which codec is attached to
1811  * @template: the template of ac97, including index, callbacks and
1812  *         the private data.
1813  * @rac97: the pointer to store the new ac97 instance.
1814  *
1815  * Creates an Codec97 component.  An ac97_t instance is newly
1816  * allocated and initialized from the template.  The codec
1817  * is then initialized by the standard procedure.
1818  *
1819  * The template must include the codec number (num) and address (addr),
1820  * and the private data (private_data).
1821  * 
1822  * The ac97 instance is registered as a low-level device, so you don't
1823  * have to release it manually.
1824  *
1825  * Returns zero if successful, or a negative error code on failure.
1826  */
1827 int snd_ac97_mixer(ac97_bus_t *bus, ac97_template_t *template, ac97_t **rac97)
1828 {
1829         int err;
1830         ac97_t *ac97;
1831         snd_card_t *card;
1832         char name[64];
1833         unsigned long end_time;
1834         unsigned int reg;
1835         const ac97_codec_id_t *pid;
1836         static snd_device_ops_t ops = {
1837                 .dev_free =     snd_ac97_dev_free,
1838         };
1839
1840         snd_assert(rac97 != NULL, return -EINVAL);
1841         *rac97 = NULL;
1842         snd_assert(bus != NULL && template != NULL, return -EINVAL);
1843         snd_assert(template->num < 4 && bus->codec[template->num] == NULL, return -EINVAL);
1844
1845         snd_assert(bus->shared_type <= AC97_SHARED_TYPES, return -EINVAL);
1846         if (bus->shared_type) {
1847                 /* already shared? */
1848                 down(&shared_codec_mutex);
1849                 ac97 = shared_codec[bus->shared_type-1][template->num];
1850                 if (ac97) {
1851                         if ((ac97_is_audio(ac97) && (template->scaps & AC97_SCAP_SKIP_AUDIO)) ||
1852                             (ac97_is_modem(ac97) && (template->scaps & AC97_SCAP_SKIP_MODEM))) {
1853                                 up(&shared_codec_mutex);
1854                                 return -EACCES; /* skip this */
1855                         }
1856                 }
1857                 up(&shared_codec_mutex);
1858         }
1859
1860         card = bus->card;
1861         ac97 = kcalloc(1, sizeof(*ac97), GFP_KERNEL);
1862         if (ac97 == NULL)
1863                 return -ENOMEM;
1864         ac97->private_data = template->private_data;
1865         ac97->private_free = template->private_free;
1866         ac97->bus = bus;
1867         ac97->pci = template->pci;
1868         ac97->num = template->num;
1869         ac97->addr = template->addr;
1870         ac97->scaps = template->scaps;
1871         ac97->limited_regs = template->limited_regs;
1872         memcpy(ac97->reg_accessed, template->reg_accessed, sizeof(ac97->reg_accessed));
1873         bus->codec[ac97->num] = ac97;
1874         init_MUTEX(&ac97->reg_mutex);
1875         init_MUTEX(&ac97->page_mutex);
1876
1877         if (ac97->pci) {
1878                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_VENDOR_ID, &ac97->subsystem_vendor);
1879                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_ID, &ac97->subsystem_device);
1880         }
1881         if (bus->ops->reset) {
1882                 bus->ops->reset(ac97);
1883                 goto __access_ok;
1884         }
1885
1886         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
1887         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
1888         if (ac97->id && ac97->id != (unsigned int)-1) {
1889                 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
1890                 if (pid && (pid->flags & AC97_DEFAULT_POWER_OFF))
1891                         goto __access_ok;
1892         }
1893
1894         /* reset to defaults */
1895         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
1896                 snd_ac97_write(ac97, AC97_RESET, 0);
1897         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
1898                 snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
1899         if (bus->ops->wait)
1900                 bus->ops->wait(ac97);
1901         else {
1902                 udelay(50);
1903                 if (ac97->scaps & AC97_SCAP_SKIP_AUDIO)
1904                         err = ac97_reset_wait(ac97, HZ/2, 1);
1905                 else {
1906                         err = ac97_reset_wait(ac97, HZ/2, 0);
1907                         if (err < 0)
1908                                 err = ac97_reset_wait(ac97, HZ/2, 1);
1909                 }
1910                 if (err < 0) {
1911                         snd_printk(KERN_WARNING "AC'97 %d does not respond - RESET\n", ac97->num);
1912                         /* proceed anyway - it's often non-critical */
1913                 }
1914         }
1915       __access_ok:
1916         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
1917         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
1918         if (! (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) &&
1919             (ac97->id == 0x00000000 || ac97->id == 0xffffffff)) {
1920                 snd_printk(KERN_ERR "AC'97 %d access is not valid [0x%x], removing mixer.\n", ac97->num, ac97->id);
1921                 snd_ac97_free(ac97);
1922                 return -EIO;
1923         }
1924         pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
1925         if (pid)
1926                 ac97->flags |= pid->flags;
1927         
1928         /* test for AC'97 */
1929         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO) && !(ac97->scaps & AC97_SCAP_AUDIO)) {
1930                 /* test if we can write to the record gain volume register */
1931                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a06);
1932                 if (((err = snd_ac97_read(ac97, AC97_REC_GAIN)) & 0x7fff) == 0x0a06)
1933                         ac97->scaps |= AC97_SCAP_AUDIO;
1934         }
1935         if (ac97->scaps & AC97_SCAP_AUDIO) {
1936                 ac97->caps = snd_ac97_read(ac97, AC97_RESET);
1937                 ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);
1938                 if (ac97->ext_id == 0xffff)     /* invalid combination */
1939                         ac97->ext_id = 0;
1940         }
1941
1942         /* test for MC'97 */
1943         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM) && !(ac97->scaps & AC97_SCAP_MODEM)) {
1944                 ac97->ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1945                 if (ac97->ext_mid == 0xffff)    /* invalid combination */
1946                         ac97->ext_mid = 0;
1947                 if (ac97->ext_mid & 1)
1948                         ac97->scaps |= AC97_SCAP_MODEM;
1949         }
1950
1951         if (!ac97_is_audio(ac97) && !ac97_is_modem(ac97)) {
1952                 if (!(ac97->scaps & (AC97_SCAP_SKIP_AUDIO|AC97_SCAP_SKIP_MODEM)))
1953                         snd_printk(KERN_ERR "AC'97 %d access error (not audio or modem codec)\n", ac97->num);
1954                 snd_ac97_free(ac97);
1955                 return -EACCES;
1956         }
1957
1958         if (bus->ops->reset) // FIXME: always skipping?
1959                 goto __ready_ok;
1960
1961         /* FIXME: add powerdown control */
1962         if (ac97_is_audio(ac97)) {
1963                 /* nothing should be in powerdown mode */
1964                 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
1965                 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
1966                         snd_ac97_write_cache(ac97, AC97_RESET, 0); /* reset to defaults */
1967                         udelay(100);
1968                         snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
1969                 }
1970                 /* nothing should be in powerdown mode */
1971                 snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0);
1972                 end_time = jiffies + (HZ / 10);
1973                 do {
1974                         if ((snd_ac97_read(ac97, AC97_POWERDOWN) & 0x0f) == 0x0f)
1975                                 goto __ready_ok;
1976                         set_current_state(TASK_UNINTERRUPTIBLE);
1977                         schedule_timeout(1);
1978                 } while (time_after_eq(end_time, jiffies));
1979                 snd_printk(KERN_WARNING "AC'97 %d analog subsections not ready\n", ac97->num);
1980         }
1981
1982         /* FIXME: add powerdown control */
1983         if (ac97_is_modem(ac97)) {
1984                 unsigned char tmp;
1985
1986                 /* nothing should be in powerdown mode */
1987                 /* note: it's important to set the rate at first */
1988                 tmp = AC97_MEA_GPIO;
1989                 if (ac97->ext_mid & AC97_MEI_LINE1) {
1990                         snd_ac97_write_cache(ac97, AC97_LINE1_RATE, 8000);
1991                         tmp |= AC97_MEA_ADC1 | AC97_MEA_DAC1;
1992                 }
1993                 if (ac97->ext_mid & AC97_MEI_LINE2) {
1994                         snd_ac97_write_cache(ac97, AC97_LINE2_RATE, 8000);
1995                         tmp |= AC97_MEA_ADC2 | AC97_MEA_DAC2;
1996                 }
1997                 if (ac97->ext_mid & AC97_MEI_HANDSET) {
1998                         snd_ac97_write_cache(ac97, AC97_HANDSET_RATE, 8000);
1999                         tmp |= AC97_MEA_HADC | AC97_MEA_HDAC;
2000                 }
2001                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2002                 udelay(100);
2003                 /* nothing should be in powerdown mode */
2004                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2005                 end_time = jiffies + (HZ / 10);
2006                 do {
2007                         if ((snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS) & tmp) == tmp)
2008                                 goto __ready_ok;
2009                         set_current_state(TASK_UNINTERRUPTIBLE);
2010                         schedule_timeout(1);
2011                 } while (time_after_eq(end_time, jiffies));
2012                 snd_printk(KERN_WARNING "MC'97 %d converters and GPIO not ready (0x%x)\n", ac97->num, snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS));
2013         }
2014         
2015       __ready_ok:
2016         if (ac97_is_audio(ac97))
2017                 ac97->addr = (ac97->ext_id & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT;
2018         else
2019                 ac97->addr = (ac97->ext_mid & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT;
2020         if (ac97->ext_id & 0x01c9) {    /* L/R, MIC, SDAC, LDAC VRA support */
2021                 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2022                 reg |= ac97->ext_id & 0x01c0; /* LDAC/SDAC/CDAC */
2023                 if (! bus->no_vra)
2024                         reg |= ac97->ext_id & 0x0009; /* VRA/VRM */
2025                 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2026         }
2027         if ((ac97->ext_id & AC97_EI_DRA) && bus->dra) {
2028                 /* Intel controllers require double rate data to be put in
2029                  * slots 7+8, so let's hope the codec supports it. */
2030                 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, AC97_GP_DRSS_78);
2031                 if ((snd_ac97_read(ac97, AC97_GENERAL_PURPOSE) & AC97_GP_DRSS_MASK) == AC97_GP_DRSS_78)
2032                         ac97->flags |= AC97_DOUBLE_RATE;
2033         }
2034         if (ac97->ext_id & AC97_EI_VRA) {       /* VRA support */
2035                 snd_ac97_determine_rates(ac97, AC97_PCM_FRONT_DAC_RATE, 0, &ac97->rates[AC97_RATES_FRONT_DAC]);
2036                 snd_ac97_determine_rates(ac97, AC97_PCM_LR_ADC_RATE, 0, &ac97->rates[AC97_RATES_ADC]);
2037         } else {
2038                 ac97->rates[AC97_RATES_FRONT_DAC] = SNDRV_PCM_RATE_48000;
2039                 if (ac97->flags & AC97_DOUBLE_RATE)
2040                         ac97->rates[AC97_RATES_FRONT_DAC] |= SNDRV_PCM_RATE_96000;
2041                 ac97->rates[AC97_RATES_ADC] = SNDRV_PCM_RATE_48000;
2042         }
2043         if (ac97->ext_id & AC97_EI_SPDIF) {
2044                 /* codec specific code (patch) should override these values */
2045                 ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_32000;
2046         }
2047         if (ac97->ext_id & AC97_EI_VRM) {       /* MIC VRA support */
2048                 snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]);
2049         } else {
2050                 ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000;
2051         }
2052         if (ac97->ext_id & AC97_EI_SDAC) {      /* SDAC support */
2053                 snd_ac97_determine_rates(ac97, AC97_PCM_SURR_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_SURR_DAC]);
2054                 ac97->scaps |= AC97_SCAP_SURROUND_DAC;
2055         }
2056         if (ac97->ext_id & AC97_EI_LDAC) {      /* LDAC support */
2057                 snd_ac97_determine_rates(ac97, AC97_PCM_LFE_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_LFE_DAC]);
2058                 ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
2059         }
2060         /* additional initializations */
2061         if (bus->ops->init)
2062                 bus->ops->init(ac97);
2063         snd_ac97_get_name(ac97, ac97->id, name, !ac97_is_audio(ac97));
2064         snd_ac97_get_name(NULL, ac97->id, name, !ac97_is_audio(ac97));  // ac97->id might be changed in the special setup code
2065         if (! ac97->build_ops)
2066                 ac97->build_ops = &null_build_ops;
2067
2068         if (ac97_is_audio(ac97)) {
2069                 char comp[16];
2070                 if (card->mixername[0] == '\0') {
2071                         strcpy(card->mixername, name);
2072                 } else {
2073                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2074                                 strcat(card->mixername, ",");
2075                                 strcat(card->mixername, name);
2076                         }
2077                 }
2078                 sprintf(comp, "AC97a:%08x", ac97->id);
2079                 if ((err = snd_component_add(card, comp)) < 0) {
2080                         snd_ac97_free(ac97);
2081                         return err;
2082                 }
2083                 if (snd_ac97_mixer_build(ac97) < 0) {
2084                         snd_ac97_free(ac97);
2085                         return -ENOMEM;
2086                 }
2087         }
2088         if (ac97_is_modem(ac97)) {
2089                 char comp[16];
2090                 if (card->mixername[0] == '\0') {
2091                         strcpy(card->mixername, name);
2092                 } else {
2093                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2094                                 strcat(card->mixername, ",");
2095                                 strcat(card->mixername, name);
2096                         }
2097                 }
2098                 sprintf(comp, "AC97m:%08x", ac97->id);
2099                 if ((err = snd_component_add(card, comp)) < 0) {
2100                         snd_ac97_free(ac97);
2101                         return err;
2102                 }
2103                 if (snd_ac97_modem_build(card, ac97) < 0) {
2104                         snd_ac97_free(ac97);
2105                         return -ENOMEM;
2106                 }
2107         }
2108         /* make sure the proper powerdown bits are cleared */
2109         if (ac97->scaps) {
2110                 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2111                 if (ac97->scaps & AC97_SCAP_SURROUND_DAC) 
2112                         reg &= ~AC97_EA_PRJ;
2113                 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) 
2114                         reg &= ~(AC97_EA_PRI | AC97_EA_PRK);
2115                 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2116         }
2117         snd_ac97_proc_init(ac97);
2118         if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ac97, &ops)) < 0) {
2119                 snd_ac97_free(ac97);
2120                 return err;
2121         }
2122         *rac97 = ac97;
2123
2124         if (bus->shared_type) {
2125                 down(&shared_codec_mutex);
2126                 shared_codec[bus->shared_type-1][ac97->num] = ac97;
2127                 up(&shared_codec_mutex);
2128         }
2129
2130         return 0;
2131 }
2132
2133
2134 /*
2135  * Power down the chip.
2136  *
2137  * MASTER and HEADPHONE registers are muted but the register cache values
2138  * are not changed, so that the values can be restored in snd_ac97_resume().
2139  */
2140 static void snd_ac97_powerdown(ac97_t *ac97)
2141 {
2142         unsigned short power;
2143
2144         if (ac97_is_audio(ac97)) {
2145                 /* some codecs have stereo mute bits */
2146                 snd_ac97_write(ac97, AC97_MASTER, 0x9f9f);
2147                 snd_ac97_write(ac97, AC97_HEADPHONE, 0x9f9f);
2148         }
2149
2150         power = ac97->regs[AC97_POWERDOWN] | 0x8000;    /* EAPD */
2151         power |= 0x4000;        /* Headphone amplifier powerdown */
2152         power |= 0x0300;        /* ADC & DAC powerdown */
2153         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2154         udelay(100);
2155         power |= 0x0400;        /* Analog Mixer powerdown (Vref on) */
2156         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2157         udelay(100);
2158 #if 0
2159         /* FIXME: this causes click noises on some boards at resume */
2160         power |= 0x3800;        /* AC-link powerdown, internal Clk disable */
2161         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2162 #endif
2163 }
2164
2165
2166 #ifdef CONFIG_PM
2167 /**
2168  * snd_ac97_suspend - General suspend function for AC97 codec
2169  * @ac97: the ac97 instance
2170  *
2171  * Suspends the codec, power down the chip.
2172  */
2173 void snd_ac97_suspend(ac97_t *ac97)
2174 {
2175         if (ac97->build_ops->suspend)
2176                 ac97->build_ops->suspend(ac97);
2177         snd_ac97_powerdown(ac97);
2178 }
2179
2180 /*
2181  * restore ac97 status
2182  */
2183 void snd_ac97_restore_status(ac97_t *ac97)
2184 {
2185         int i;
2186
2187         for (i = 2; i < 0x7c ; i += 2) {
2188                 if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
2189                         continue;
2190                 /* restore only accessible registers
2191                  * some chip (e.g. nm256) may hang up when unsupported registers
2192                  * are accessed..!
2193                  */
2194                 if (test_bit(i, ac97->reg_accessed)) {
2195                         snd_ac97_write(ac97, i, ac97->regs[i]);
2196                         snd_ac97_read(ac97, i);
2197                 }
2198         }
2199 }
2200
2201 /*
2202  * restore IEC958 status
2203  */
2204 void snd_ac97_restore_iec958(ac97_t *ac97)
2205 {
2206         if (ac97->ext_id & AC97_EI_SPDIF) {
2207                 if (ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_SPDIF) {
2208                         /* reset spdif status */
2209                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
2210                         snd_ac97_write(ac97, AC97_EXTENDED_STATUS, ac97->regs[AC97_EXTENDED_STATUS]);
2211                         if (ac97->flags & AC97_CS_SPDIF)
2212                                 snd_ac97_write(ac97, AC97_CSR_SPDIF, ac97->regs[AC97_CSR_SPDIF]);
2213                         else
2214                                 snd_ac97_write(ac97, AC97_SPDIF, ac97->regs[AC97_SPDIF]);
2215                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
2216                 }
2217         }
2218 }
2219
2220 /**
2221  * snd_ac97_resume - General resume function for AC97 codec
2222  * @ac97: the ac97 instance
2223  *
2224  * Do the standard resume procedure, power up and restoring the
2225  * old register values.
2226  */
2227 void snd_ac97_resume(ac97_t *ac97)
2228 {
2229         int i;
2230
2231         if (ac97->bus->ops->reset) {
2232                 ac97->bus->ops->reset(ac97);
2233                 goto  __reset_ready;
2234         }
2235
2236         snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2237         if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2238                 snd_ac97_write(ac97, AC97_RESET, 0);
2239                 udelay(100);
2240                 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2241         }
2242         snd_ac97_write(ac97, AC97_GENERAL_PURPOSE, 0);
2243
2244         snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]);
2245         if (ac97_is_audio(ac97)) {
2246                 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8101);
2247                 for (i = HZ/10; i >= 0; i--) {
2248                         if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101)
2249                                 break;
2250                         set_current_state(TASK_UNINTERRUPTIBLE);
2251                         schedule_timeout(1);
2252                 }
2253                 /* FIXME: extra delay */
2254                 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8000);
2255                 if (snd_ac97_read(ac97, AC97_MASTER) != 0x8000) {
2256                         set_current_state(TASK_UNINTERRUPTIBLE);
2257                         schedule_timeout(HZ/4);
2258                 }
2259         } else {
2260                 for (i = HZ/10; i >= 0; i--) {
2261                         unsigned short val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2262                         if (val != 0xffff && (val & 1) != 0)
2263                                 break;
2264                         set_current_state(TASK_UNINTERRUPTIBLE);
2265                         schedule_timeout(1);
2266                 }
2267         }
2268 __reset_ready:
2269
2270         if (ac97->bus->ops->init)
2271                 ac97->bus->ops->init(ac97);
2272
2273         if (ac97->build_ops->resume)
2274                 ac97->build_ops->resume(ac97);
2275         else {
2276                 snd_ac97_restore_status(ac97);
2277                 snd_ac97_restore_iec958(ac97);
2278         }
2279 }
2280 #endif
2281
2282
2283 /*
2284  * Hardware tuning
2285  */
2286 static void set_ctl_name(char *dst, const char *src, const char *suffix)
2287 {
2288         if (suffix)
2289                 sprintf(dst, "%s %s", src, suffix);
2290         else
2291                 strcpy(dst, src);
2292 }       
2293
2294 /* remove the control with the given name and optional suffix */
2295 int snd_ac97_remove_ctl(ac97_t *ac97, const char *name, const char *suffix)
2296 {
2297         snd_ctl_elem_id_t id;
2298         memset(&id, 0, sizeof(id));
2299         set_ctl_name(id.name, name, suffix);
2300         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2301         return snd_ctl_remove_id(ac97->bus->card, &id);
2302 }
2303
2304 static snd_kcontrol_t *ctl_find(ac97_t *ac97, const char *name, const char *suffix)
2305 {
2306         snd_ctl_elem_id_t sid;
2307         memset(&sid, 0, sizeof(sid));
2308         set_ctl_name(sid.name, name, suffix);
2309         sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2310         return snd_ctl_find_id(ac97->bus->card, &sid);
2311 }
2312
2313 /* rename the control with the given name and optional suffix */
2314 int snd_ac97_rename_ctl(ac97_t *ac97, const char *src, const char *dst, const char *suffix)
2315 {
2316         snd_kcontrol_t *kctl = ctl_find(ac97, src, suffix);
2317         if (kctl) {
2318                 set_ctl_name(kctl->id.name, dst, suffix);
2319                 return 0;
2320         }
2321         return -ENOENT;
2322 }
2323
2324 /* rename both Volume and Switch controls - don't check the return value */
2325 void snd_ac97_rename_vol_ctl(ac97_t *ac97, const char *src, const char *dst)
2326 {
2327         snd_ac97_rename_ctl(ac97, src, dst, "Switch");
2328         snd_ac97_rename_ctl(ac97, src, dst, "Volume");
2329 }
2330
2331 /* swap controls */
2332 int snd_ac97_swap_ctl(ac97_t *ac97, const char *s1, const char *s2, const char *suffix)
2333 {
2334         snd_kcontrol_t *kctl1, *kctl2;
2335         kctl1 = ctl_find(ac97, s1, suffix);
2336         kctl2 = ctl_find(ac97, s2, suffix);
2337         if (kctl1 && kctl2) {
2338                 set_ctl_name(kctl1->id.name, s2, suffix);
2339                 set_ctl_name(kctl2->id.name, s1, suffix);
2340                 return 0;
2341         }
2342         return -ENOENT;
2343 }
2344
2345 #if 1
2346 /* bind hp and master controls instead of using only hp control */
2347 static int bind_hp_volsw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2348 {
2349         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2350         if (err > 0) {
2351                 unsigned long priv_saved = kcontrol->private_value;
2352                 kcontrol->private_value = (kcontrol->private_value & ~0xff) | AC97_HEADPHONE;
2353                 snd_ac97_put_volsw(kcontrol, ucontrol);
2354                 kcontrol->private_value = priv_saved;
2355         }
2356         return err;
2357 }
2358
2359 /* ac97 tune: bind Master and Headphone controls */
2360 static int tune_hp_only(ac97_t *ac97)
2361 {
2362         snd_kcontrol_t *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2363         snd_kcontrol_t *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2364         if (! msw || ! mvol)
2365                 return -ENOENT;
2366         msw->put = bind_hp_volsw_put;
2367         mvol->put = bind_hp_volsw_put;
2368         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2369         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2370         return 0;
2371 }
2372
2373 #else
2374 /* ac97 tune: use Headphone control as master */
2375 static int tune_hp_only(ac97_t *ac97)
2376 {
2377         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2378                 return -ENOENT;
2379         snd_ac97_remove_ctl(ac97, "Master Playback", "Switch");
2380         snd_ac97_remove_ctl(ac97, "Master Playback", "Volume");
2381         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2382         return 0;
2383 }
2384 #endif
2385
2386 /* ac97 tune: swap Headphone and Master controls */
2387 static int tune_swap_hp(ac97_t *ac97)
2388 {
2389         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2390                 return -ENOENT;
2391         snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Line-Out Playback");
2392         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2393         return 0;
2394 }
2395
2396 /* ac97 tune: swap Surround and Master controls */
2397 static int tune_swap_surround(ac97_t *ac97)
2398 {
2399         if (snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Switch") ||
2400             snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Volume"))
2401                 return -ENOENT;
2402         return 0;
2403 }
2404
2405 /* ac97 tune: set up mic sharing for AD codecs */
2406 static int tune_ad_sharing(ac97_t *ac97)
2407 {
2408         unsigned short scfg;
2409         if ((ac97->id & 0xffffff00) != 0x41445300) {
2410                 snd_printk(KERN_ERR "ac97_quirk AD_SHARING is only for AD codecs\n");
2411                 return -EINVAL;
2412         }
2413         /* Turn on OMS bit to route microphone to back panel */
2414         scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
2415         snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x0200);
2416         return 0;
2417 }
2418
2419 static const snd_kcontrol_new_t snd_ac97_alc_jack_detect = 
2420 AC97_SINGLE("Jack Detect", AC97_ALC650_CLOCK, 5, 1, 0);
2421
2422 /* ac97 tune: set up ALC jack-select */
2423 static int tune_alc_jack(ac97_t *ac97)
2424 {
2425         if ((ac97->id & 0xffffff00) != 0x414c4700) {
2426                 snd_printk(KERN_ERR "ac97_quirk ALC_JACK is only for Realtek codecs\n");
2427                 return -EINVAL;
2428         }
2429         snd_ac97_update_bits(ac97, 0x7a, 0x20, 0x20); /* select jack detect function */
2430         snd_ac97_update_bits(ac97, 0x7a, 0x01, 0x01); /* Line-out auto mute */
2431         return snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_alc_jack_detect, ac97));
2432 }
2433
2434 /* ac97 tune: inversed EAPD bit */
2435 static int tune_inv_eapd(ac97_t *ac97)
2436 {
2437         snd_kcontrol_t *kctl = ctl_find(ac97, "External Amplifier", NULL);
2438         if (! kctl)
2439                 return -ENOENT;
2440         set_inv_eapd(ac97, kctl);
2441         return 0;
2442 }
2443
2444 static int master_mute_sw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2445 {
2446         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2447         if (err > 0) {
2448                 ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
2449                 int shift = (kcontrol->private_value >> 8) & 0x0f;
2450                 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2451                 unsigned short mask;
2452                 if (shift != rshift)
2453                         mask = 0x8080;
2454                 else
2455                         mask = 0x8000;
2456                 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000,
2457                                      (ac97->regs[AC97_MASTER] & mask) == mask ?
2458                                      0x8000 : 0);
2459         }
2460         return err;
2461 }
2462
2463 /* ac97 tune: EAPD controls mute LED bound with the master mute */
2464 static int tune_mute_led(ac97_t *ac97)
2465 {
2466         snd_kcontrol_t *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2467         if (! msw)
2468                 return -ENOENT;
2469         msw->put = master_mute_sw_put;
2470         snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2471         snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000, 0x8000); /* mute LED on */
2472         return 0;
2473 }
2474
2475 struct quirk_table {
2476         const char *name;
2477         int (*func)(ac97_t *);
2478 };
2479
2480 static struct quirk_table applicable_quirks[] = {
2481         { "none", NULL },
2482         { "hp_only", tune_hp_only },
2483         { "swap_hp", tune_swap_hp },
2484         { "swap_surround", tune_swap_surround },
2485         { "ad_sharing", tune_ad_sharing },
2486         { "alc_jack", tune_alc_jack },
2487         { "inv_eapd", tune_inv_eapd },
2488         { "mute_led", tune_mute_led },
2489 };
2490
2491 /* apply the quirk with the given type */
2492 static int apply_quirk(ac97_t *ac97, int type)
2493 {
2494         if (type <= 0)
2495                 return 0;
2496         else if (type >= ARRAY_SIZE(applicable_quirks))
2497                 return -EINVAL;
2498         if (applicable_quirks[type].func)
2499                 return applicable_quirks[type].func(ac97);
2500         return 0;
2501 }
2502
2503 /* apply the quirk with the given name */
2504 static int apply_quirk_str(ac97_t *ac97, const char *typestr)
2505 {
2506         int i;
2507         struct quirk_table *q;
2508
2509         for (i = 0; i < ARRAY_SIZE(applicable_quirks); i++) {
2510                 q = &applicable_quirks[i];
2511                 if (q->name && ! strcmp(typestr, q->name))
2512                         return apply_quirk(ac97, i);
2513         }
2514         /* for compatibility, accept the numbers, too */
2515         if (*typestr >= '0' && *typestr <= '9')
2516                 return apply_quirk(ac97, (int)simple_strtoul(typestr, NULL, 10));
2517         return -EINVAL;
2518 }
2519
2520 /**
2521  * snd_ac97_tune_hardware - tune up the hardware
2522  * @ac97: the ac97 instance
2523  * @quirk: quirk list
2524  * @override: explicit quirk value (overrides the list if non-NULL)
2525  *
2526  * Do some workaround for each pci device, such as renaming of the
2527  * headphone (true line-out) control as "Master".
2528  * The quirk-list must be terminated with a zero-filled entry.
2529  *
2530  * Returns zero if successful, or a negative error code on failure.
2531  */
2532
2533 int snd_ac97_tune_hardware(ac97_t *ac97, struct ac97_quirk *quirk, const char *override)
2534 {
2535         int result;
2536
2537         snd_assert(quirk, return -EINVAL);
2538
2539         /* quirk overriden? */
2540         if (override && strcmp(override, "-1") && strcmp(override, "default")) {
2541                 result = apply_quirk_str(ac97, override);
2542                 if (result < 0)
2543                         snd_printk(KERN_ERR "applying quirk type %s failed (%d)\n", override, result);
2544                 return result;
2545         }
2546
2547         for (; quirk->subvendor; quirk++) {
2548                 if (quirk->subvendor != ac97->subsystem_vendor)
2549                         continue;
2550                 if ((! quirk->mask && quirk->subdevice == ac97->subsystem_device) ||
2551                     quirk->subdevice == (quirk->mask & ac97->subsystem_device)) {
2552                         if (quirk->codec_id && quirk->codec_id != ac97->id)
2553                                 continue;
2554                         snd_printdd("ac97 quirk for %s (%04x:%04x)\n", quirk->name, ac97->subsystem_vendor, ac97->subsystem_device);
2555                         result = apply_quirk(ac97, quirk->type);
2556                         if (result < 0)
2557                                 snd_printk(KERN_ERR "applying quirk type %d for %s failed (%d)\n", quirk->type, quirk->name, result);
2558                         return result;
2559                 }
2560         }
2561         return 0;
2562 }
2563
2564
2565 /*
2566  *  Exported symbols
2567  */
2568
2569 EXPORT_SYMBOL(snd_ac97_write);
2570 EXPORT_SYMBOL(snd_ac97_read);
2571 EXPORT_SYMBOL(snd_ac97_write_cache);
2572 EXPORT_SYMBOL(snd_ac97_update);
2573 EXPORT_SYMBOL(snd_ac97_update_bits);
2574 EXPORT_SYMBOL(snd_ac97_get_short_name);
2575 EXPORT_SYMBOL(snd_ac97_bus);
2576 EXPORT_SYMBOL(snd_ac97_mixer);
2577 EXPORT_SYMBOL(snd_ac97_pcm_assign);
2578 EXPORT_SYMBOL(snd_ac97_pcm_open);
2579 EXPORT_SYMBOL(snd_ac97_pcm_close);
2580 EXPORT_SYMBOL(snd_ac97_pcm_double_rate_rules);
2581 EXPORT_SYMBOL(snd_ac97_tune_hardware);
2582 EXPORT_SYMBOL(snd_ac97_set_rate);
2583 #ifdef CONFIG_PM
2584 EXPORT_SYMBOL(snd_ac97_resume);
2585 EXPORT_SYMBOL(snd_ac97_suspend);
2586 #endif
2587
2588 /*
2589  *  INIT part
2590  */
2591
2592 static int __init alsa_ac97_init(void)
2593 {
2594         return 0;
2595 }
2596
2597 static void __exit alsa_ac97_exit(void)
2598 {
2599 }
2600
2601 module_init(alsa_ac97_init)
2602 module_exit(alsa_ac97_exit)