1 /*
2  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3  *  Universal interface for Audio Codec '97
4  *
5  *  For more details look to AC '97 component specification revision 2.2
6  *  by Intel Corporation (http://developer.intel.com).
7  *
8  *
9  *   This program is free software; you can redistribute it and/or modify
10  *   it under the terms of the GNU General Public License as published by
11  *   the Free Software Foundation; either version 2 of the License, or
12  *   (at your option) any later version.
13  *
14  *   This program is distributed in the hope that it will be useful,
15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  *   GNU General Public License for more details.
18  *
19  *   You should have received a copy of the GNU General Public License
20  *   along with this program; if not, write to the Free Software
21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
22  *
23  */
24 
25 #include <linux/delay.h>
26 #include <linux/init.h>
27 #include <linux/slab.h>
28 #include <linux/pci.h>
29 #include <linux/module.h>
30 #include <linux/mutex.h>
31 #include <sound/core.h>
32 #include <sound/pcm.h>
33 #include <sound/tlv.h>
34 #include <sound/ac97_codec.h>
35 #include <sound/asoundef.h>
36 #include <sound/initval.h>
37 #include "ac97_id.h"
38 
39 #include "ac97_patch.c"
40 
41 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
42 MODULE_DESCRIPTION("Universal interface for Audio Codec '97");
43 MODULE_LICENSE("GPL");
44 
45 static bool enable_loopback;
46 
47 module_param(enable_loopback, bool, 0444);
48 MODULE_PARM_DESC(enable_loopback, "Enable AC97 ADC/DAC Loopback Control");
49 
50 #ifdef CONFIG_SND_AC97_POWER_SAVE
51 static int power_save = CONFIG_SND_AC97_POWER_SAVE_DEFAULT;
52 module_param(power_save, int, 0644);
53 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
54 		 "(in second, 0 = disable).");
55 #endif
56 /*
57 
58  */
59 
60 struct ac97_codec_id {
61 	unsigned int id;
62 	unsigned int mask;
63 	const char *name;
64 	int (*patch)(struct snd_ac97 *ac97);
65 	int (*mpatch)(struct snd_ac97 *ac97);
66 	unsigned int flags;
67 };
68 
69 static const struct ac97_codec_id snd_ac97_codec_id_vendors[] = {
70 { 0x41445300, 0xffffff00, "Analog Devices",	NULL,	NULL },
71 { 0x414b4d00, 0xffffff00, "Asahi Kasei",	NULL,	NULL },
72 { 0x414c4300, 0xffffff00, "Realtek",		NULL,	NULL },
73 { 0x414c4700, 0xffffff00, "Realtek",		NULL,	NULL },
74 /*
75  * This is an _inofficial_ Aztech Labs entry
76  * (value might differ from unknown official Aztech ID),
77  * currently used by the AC97 emulation of the almost-AC97 PCI168 card.
78  */
79 { 0x415a5400, 0xffffff00, "Aztech Labs (emulated)",	NULL,	NULL },
80 { 0x434d4900, 0xffffff00, "C-Media Electronics", NULL,	NULL },
81 { 0x43525900, 0xffffff00, "Cirrus Logic",	NULL,	NULL },
82 { 0x43585400, 0xffffff00, "Conexant",           NULL,	NULL },
83 { 0x44543000, 0xffffff00, "Diamond Technology", NULL,	NULL },
84 { 0x454d4300, 0xffffff00, "eMicro",		NULL,	NULL },
85 { 0x45838300, 0xffffff00, "ESS Technology",	NULL,	NULL },
86 { 0x48525300, 0xffffff00, "Intersil",		NULL,	NULL },
87 { 0x49434500, 0xffffff00, "ICEnsemble",		NULL,	NULL },
88 { 0x49544500, 0xffffff00, "ITE Tech.Inc",	NULL,	NULL },
89 { 0x4e534300, 0xffffff00, "National Semiconductor", NULL, NULL },
90 { 0x50534300, 0xffffff00, "Philips",		NULL,	NULL },
91 { 0x53494c00, 0xffffff00, "Silicon Laboratory",	NULL,	NULL },
92 { 0x53544d00, 0xffffff00, "STMicroelectronics",	NULL,	NULL },
93 { 0x54524100, 0xffffff00, "TriTech",		NULL,	NULL },
94 { 0x54584e00, 0xffffff00, "Texas Instruments",	NULL,	NULL },
95 { 0x56494100, 0xffffff00, "VIA Technologies",   NULL,	NULL },
96 { 0x57454300, 0xffffff00, "Winbond",		NULL,	NULL },
97 { 0x574d4c00, 0xffffff00, "Wolfson",		NULL,	NULL },
98 { 0x594d4800, 0xffffff00, "Yamaha",		NULL,	NULL },
99 { 0x83847600, 0xffffff00, "SigmaTel",		NULL,	NULL },
100 { 0,	      0, 	  NULL,			NULL,	NULL }
101 };
102 
103 static const struct ac97_codec_id snd_ac97_codec_ids[] = {
104 { 0x41445303, 0xffffffff, "AD1819",		patch_ad1819,	NULL },
105 { 0x41445340, 0xffffffff, "AD1881",		patch_ad1881,	NULL },
106 { 0x41445348, 0xffffffff, "AD1881A",		patch_ad1881,	NULL },
107 { 0x41445360, 0xffffffff, "AD1885",		patch_ad1885,	NULL },
108 { 0x41445361, 0xffffffff, "AD1886",		patch_ad1886,	NULL },
109 { 0x41445362, 0xffffffff, "AD1887",		patch_ad1881,	NULL },
110 { 0x41445363, 0xffffffff, "AD1886A",		patch_ad1881,	NULL },
111 { 0x41445368, 0xffffffff, "AD1888",		patch_ad1888,	NULL },
112 { 0x41445370, 0xffffffff, "AD1980",		patch_ad1980,	NULL },
113 { 0x41445372, 0xffffffff, "AD1981A",		patch_ad1981a,	NULL },
114 { 0x41445374, 0xffffffff, "AD1981B",		patch_ad1981b,	NULL },
115 { 0x41445375, 0xffffffff, "AD1985",		patch_ad1985,	NULL },
116 { 0x41445378, 0xffffffff, "AD1986",		patch_ad1986,	NULL },
117 { 0x414b4d00, 0xffffffff, "AK4540",		NULL,		NULL },
118 { 0x414b4d01, 0xffffffff, "AK4542",		NULL,		NULL },
119 { 0x414b4d02, 0xffffffff, "AK4543",		NULL,		NULL },
120 { 0x414b4d06, 0xffffffff, "AK4544A",		NULL,		NULL },
121 { 0x414b4d07, 0xffffffff, "AK4545",		NULL,		NULL },
122 { 0x414c4300, 0xffffff00, "ALC100,100P", 	NULL,		NULL },
123 { 0x414c4710, 0xfffffff0, "ALC200,200P",	NULL,		NULL },
124 { 0x414c4721, 0xffffffff, "ALC650D",		NULL,	NULL }, /* already patched */
125 { 0x414c4722, 0xffffffff, "ALC650E",		NULL,	NULL }, /* already patched */
126 { 0x414c4723, 0xffffffff, "ALC650F",		NULL,	NULL }, /* already patched */
127 { 0x414c4720, 0xfffffff0, "ALC650",		patch_alc650,	NULL },
128 { 0x414c4730, 0xffffffff, "ALC101",		NULL,		NULL },
129 { 0x414c4740, 0xfffffff0, "ALC202",		NULL,		NULL },
130 { 0x414c4750, 0xfffffff0, "ALC250",		NULL,		NULL },
131 { 0x414c4760, 0xfffffff0, "ALC655",		patch_alc655,	NULL },
132 { 0x414c4770, 0xfffffff0, "ALC203",		patch_alc203,	NULL },
133 { 0x414c4781, 0xffffffff, "ALC658D",		NULL,	NULL }, /* already patched */
134 { 0x414c4780, 0xfffffff0, "ALC658",		patch_alc655,	NULL },
135 { 0x414c4790, 0xfffffff0, "ALC850",		patch_alc850,	NULL },
136 { 0x415a5401, 0xffffffff, "AZF3328",		patch_aztech_azf3328,	NULL },
137 { 0x434d4941, 0xffffffff, "CMI9738",		patch_cm9738,	NULL },
138 { 0x434d4961, 0xffffffff, "CMI9739",		patch_cm9739,	NULL },
139 { 0x434d4969, 0xffffffff, "CMI9780",		patch_cm9780,	NULL },
140 { 0x434d4978, 0xffffffff, "CMI9761A",		patch_cm9761,	NULL },
141 { 0x434d4982, 0xffffffff, "CMI9761B",		patch_cm9761,	NULL },
142 { 0x434d4983, 0xffffffff, "CMI9761A+",		patch_cm9761,	NULL },
143 { 0x43525900, 0xfffffff8, "CS4297",		NULL,		NULL },
144 { 0x43525910, 0xfffffff8, "CS4297A",		patch_cirrus_spdif,	NULL },
145 { 0x43525920, 0xfffffff8, "CS4298",		patch_cirrus_spdif,		NULL },
146 { 0x43525928, 0xfffffff8, "CS4294",		NULL,		NULL },
147 { 0x43525930, 0xfffffff8, "CS4299",		patch_cirrus_cs4299,	NULL },
148 { 0x43525948, 0xfffffff8, "CS4201",		NULL,		NULL },
149 { 0x43525958, 0xfffffff8, "CS4205",		patch_cirrus_spdif,	NULL },
150 { 0x43525960, 0xfffffff8, "CS4291",		NULL,		NULL },
151 { 0x43525970, 0xfffffff8, "CS4202",		NULL,		NULL },
152 { 0x43585421, 0xffffffff, "HSD11246",		NULL,		NULL },	// SmartMC II
153 { 0x43585428, 0xfffffff8, "Cx20468",		patch_conexant,	NULL }, // SmartAMC fixme: the mask might be different
154 { 0x43585430, 0xffffffff, "Cx20468-31",		patch_conexant, NULL },
155 { 0x43585431, 0xffffffff, "Cx20551",           patch_cx20551,  NULL },
156 { 0x44543031, 0xfffffff0, "DT0398",		NULL,		NULL },
157 { 0x454d4328, 0xffffffff, "EM28028",		NULL,		NULL },  // same as TR28028?
158 { 0x45838308, 0xffffffff, "ESS1988",		NULL,		NULL },
159 { 0x48525300, 0xffffff00, "HMP9701",		NULL,		NULL },
160 { 0x49434501, 0xffffffff, "ICE1230",		NULL,		NULL },
161 { 0x49434511, 0xffffffff, "ICE1232",		NULL,		NULL }, // alias VIA VT1611A?
162 { 0x49434514, 0xffffffff, "ICE1232A",		NULL,		NULL },
163 { 0x49434551, 0xffffffff, "VT1616", 		patch_vt1616,	NULL },
164 { 0x49434552, 0xffffffff, "VT1616i",		patch_vt1616,	NULL }, // VT1616 compatible (chipset integrated)
165 { 0x49544520, 0xffffffff, "IT2226E",		NULL,		NULL },
166 { 0x49544561, 0xffffffff, "IT2646E",		patch_it2646,	NULL },
167 { 0x4e534300, 0xffffffff, "LM4540,43,45,46,48",	NULL,		NULL }, // only guess --jk
168 { 0x4e534331, 0xffffffff, "LM4549",		NULL,		NULL },
169 { 0x4e534350, 0xffffffff, "LM4550",		patch_lm4550,  	NULL }, // volume wrap fix
170 { 0x50534304, 0xffffffff, "UCB1400",		patch_ucb1400,	NULL },
171 { 0x53494c20, 0xffffffe0, "Si3036,8",		mpatch_si3036,	mpatch_si3036, AC97_MODEM_PATCH },
172 { 0x53544d02, 0xffffffff, "ST7597",		NULL,		NULL },
173 { 0x54524102, 0xffffffff, "TR28022",		NULL,		NULL },
174 { 0x54524103, 0xffffffff, "TR28023",		NULL,		NULL },
175 { 0x54524106, 0xffffffff, "TR28026",		NULL,		NULL },
176 { 0x54524108, 0xffffffff, "TR28028",		patch_tritech_tr28028,	NULL }, // added by xin jin [07/09/99]
177 { 0x54524123, 0xffffffff, "TR28602",		NULL,		NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
178 { 0x54584e20, 0xffffffff, "TLC320AD9xC",	NULL,		NULL },
179 { 0x56494161, 0xffffffff, "VIA1612A",		NULL,		NULL }, // modified ICE1232 with S/PDIF
180 { 0x56494170, 0xffffffff, "VIA1617A",		patch_vt1617a,	NULL }, // modified VT1616 with S/PDIF
181 { 0x56494182, 0xffffffff, "VIA1618",		patch_vt1618,   NULL },
182 { 0x57454301, 0xffffffff, "W83971D",		NULL,		NULL },
183 { 0x574d4c00, 0xffffffff, "WM9701,WM9701A",	NULL,		NULL },
184 { 0x574d4C03, 0xffffffff, "WM9703,WM9707,WM9708,WM9717", patch_wolfson03, NULL},
185 { 0x574d4C04, 0xffffffff, "WM9704M,WM9704Q",	patch_wolfson04, NULL},
186 { 0x574d4C05, 0xffffffff, "WM9705,WM9710",	patch_wolfson05, NULL},
187 { 0x574d4C09, 0xffffffff, "WM9709",		NULL,		NULL},
188 { 0x574d4C12, 0xffffffff, "WM9711,WM9712,WM9715",	patch_wolfson11, NULL},
189 { 0x574d4c13, 0xffffffff, "WM9713,WM9714",	patch_wolfson13, NULL, AC97_DEFAULT_POWER_OFF},
190 { 0x594d4800, 0xffffffff, "YMF743",		patch_yamaha_ymf743,	NULL },
191 { 0x594d4802, 0xffffffff, "YMF752",		NULL,		NULL },
192 { 0x594d4803, 0xffffffff, "YMF753",		patch_yamaha_ymf753,	NULL },
193 { 0x83847600, 0xffffffff, "STAC9700,83,84",	patch_sigmatel_stac9700,	NULL },
194 { 0x83847604, 0xffffffff, "STAC9701,3,4,5",	NULL,		NULL },
195 { 0x83847605, 0xffffffff, "STAC9704",		NULL,		NULL },
196 { 0x83847608, 0xffffffff, "STAC9708,11",	patch_sigmatel_stac9708,	NULL },
197 { 0x83847609, 0xffffffff, "STAC9721,23",	patch_sigmatel_stac9721,	NULL },
198 { 0x83847644, 0xffffffff, "STAC9744",		patch_sigmatel_stac9744,	NULL },
199 { 0x83847650, 0xffffffff, "STAC9750,51",	NULL,		NULL },	// patch?
200 { 0x83847652, 0xffffffff, "STAC9752,53",	NULL,		NULL }, // patch?
201 { 0x83847656, 0xffffffff, "STAC9756,57",	patch_sigmatel_stac9756,	NULL },
202 { 0x83847658, 0xffffffff, "STAC9758,59",	patch_sigmatel_stac9758,	NULL },
203 { 0x83847666, 0xffffffff, "STAC9766,67",	NULL,		NULL }, // patch?
204 { 0, 	      0,	  NULL,			NULL,		NULL }
205 };
206 
207 
208 static void update_power_regs(struct snd_ac97 *ac97);
209 #ifdef CONFIG_SND_AC97_POWER_SAVE
210 #define ac97_is_power_save_mode(ac97) \
211 	((ac97->scaps & AC97_SCAP_POWER_SAVE) && power_save)
212 #else
213 #define ac97_is_power_save_mode(ac97) 0
214 #endif
215 
216 
217 /*
218  *  I/O routines
219  */
220 
snd_ac97_valid_reg(struct snd_ac97 * ac97,unsigned short reg)221 static int snd_ac97_valid_reg(struct snd_ac97 *ac97, unsigned short reg)
222 {
223 	/* filter some registers for buggy codecs */
224 	switch (ac97->id) {
225 	case AC97_ID_ST_AC97_ID4:
226 		if (reg == 0x08)
227 			return 0;
228 		/* fall through */
229 	case AC97_ID_ST7597:
230 		if (reg == 0x22 || reg == 0x7a)
231 			return 1;
232 		/* fall through */
233 	case AC97_ID_AK4540:
234 	case AC97_ID_AK4542:
235 		if (reg <= 0x1c || reg == 0x20 || reg == 0x26 || reg >= 0x7c)
236 			return 1;
237 		return 0;
238 	case AC97_ID_AD1819:	/* AD1819 */
239 	case AC97_ID_AD1881:	/* AD1881 */
240 	case AC97_ID_AD1881A:	/* AD1881A */
241 		if (reg >= 0x3a && reg <= 0x6e)	/* 0x59 */
242 			return 0;
243 		return 1;
244 	case AC97_ID_AD1885:	/* AD1885 */
245 	case AC97_ID_AD1886:	/* AD1886 */
246 	case AC97_ID_AD1886A:	/* AD1886A - !!verify!! --jk */
247 	case AC97_ID_AD1887:	/* AD1887 - !!verify!! --jk */
248 		if (reg == 0x5a)
249 			return 1;
250 		if (reg >= 0x3c && reg <= 0x6e)	/* 0x59 */
251 			return 0;
252 		return 1;
253 	case AC97_ID_STAC9700:
254 	case AC97_ID_STAC9704:
255 	case AC97_ID_STAC9705:
256 	case AC97_ID_STAC9708:
257 	case AC97_ID_STAC9721:
258 	case AC97_ID_STAC9744:
259 	case AC97_ID_STAC9756:
260 		if (reg <= 0x3a || reg >= 0x5a)
261 			return 1;
262 		return 0;
263 	}
264 	return 1;
265 }
266 
267 /**
268  * snd_ac97_write - write a value on the given register
269  * @ac97: the ac97 instance
270  * @reg: the register to change
271  * @value: the value to set
272  *
273  * Writes a value on the given register.  This will invoke the write
274  * callback directly after the register check.
275  * This function doesn't change the register cache unlike
276  * #snd_ca97_write_cache(), so use this only when you don't want to
277  * reflect the change to the suspend/resume state.
278  */
snd_ac97_write(struct snd_ac97 * ac97,unsigned short reg,unsigned short value)279 void snd_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
280 {
281 	if (!snd_ac97_valid_reg(ac97, reg))
282 		return;
283 	if ((ac97->id & 0xffffff00) == AC97_ID_ALC100) {
284 		/* Fix H/W bug of ALC100/100P */
285 		if (reg == AC97_MASTER || reg == AC97_HEADPHONE)
286 			ac97->bus->ops->write(ac97, AC97_RESET, 0);	/* reset audio codec */
287 	}
288 	ac97->bus->ops->write(ac97, reg, value);
289 }
290 
291 EXPORT_SYMBOL(snd_ac97_write);
292 
293 /**
294  * snd_ac97_read - read a value from the given register
295  *
296  * @ac97: the ac97 instance
297  * @reg: the register to read
298  *
299  * Reads a value from the given register.  This will invoke the read
300  * callback directly after the register check.
301  *
302  * Returns the read value.
303  */
snd_ac97_read(struct snd_ac97 * ac97,unsigned short reg)304 unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
305 {
306 	if (!snd_ac97_valid_reg(ac97, reg))
307 		return 0;
308 	return ac97->bus->ops->read(ac97, reg);
309 }
310 
311 /* read a register - return the cached value if already read */
snd_ac97_read_cache(struct snd_ac97 * ac97,unsigned short reg)312 static inline unsigned short snd_ac97_read_cache(struct snd_ac97 *ac97, unsigned short reg)
313 {
314 	if (! test_bit(reg, ac97->reg_accessed)) {
315 		ac97->regs[reg] = ac97->bus->ops->read(ac97, reg);
316 		// set_bit(reg, ac97->reg_accessed);
317 	}
318 	return ac97->regs[reg];
319 }
320 
321 EXPORT_SYMBOL(snd_ac97_read);
322 
323 /**
324  * snd_ac97_write_cache - write a value on the given register and update the cache
325  * @ac97: the ac97 instance
326  * @reg: the register to change
327  * @value: the value to set
328  *
329  * Writes a value on the given register and updates the register
330  * cache.  The cached values are used for the cached-read and the
331  * suspend/resume.
332  */
snd_ac97_write_cache(struct snd_ac97 * ac97,unsigned short reg,unsigned short value)333 void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
334 {
335 	if (!snd_ac97_valid_reg(ac97, reg))
336 		return;
337 	mutex_lock(&ac97->reg_mutex);
338 	ac97->regs[reg] = value;
339 	ac97->bus->ops->write(ac97, reg, value);
340 	set_bit(reg, ac97->reg_accessed);
341 	mutex_unlock(&ac97->reg_mutex);
342 }
343 
344 EXPORT_SYMBOL(snd_ac97_write_cache);
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  */
snd_ac97_update(struct snd_ac97 * ac97,unsigned short reg,unsigned short value)358 int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
359 {
360 	int change;
361 
362 	if (!snd_ac97_valid_reg(ac97, reg))
363 		return -EINVAL;
364 	mutex_lock(&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 	mutex_unlock(&ac97->reg_mutex);
372 	return change;
373 }
374 
375 EXPORT_SYMBOL(snd_ac97_update);
376 
377 /**
378  * snd_ac97_update_bits - update the bits on the given register
379  * @ac97: the ac97 instance
380  * @reg: the register to change
381  * @mask: the bit-mask to change
382  * @value: the value to set
383  *
384  * Updates the masked-bits on the given register only when the value
385  * is changed.
386  *
387  * Returns 1 if the bits are changed, 0 if no change, or a negative
388  * code on failure.
389  */
snd_ac97_update_bits(struct snd_ac97 * ac97,unsigned short reg,unsigned short mask,unsigned short value)390 int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value)
391 {
392 	int change;
393 
394 	if (!snd_ac97_valid_reg(ac97, reg))
395 		return -EINVAL;
396 	mutex_lock(&ac97->reg_mutex);
397 	change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
398 	mutex_unlock(&ac97->reg_mutex);
399 	return change;
400 }
401 
402 EXPORT_SYMBOL(snd_ac97_update_bits);
403 
404 /* no lock version - see snd_ac97_update_bits() */
snd_ac97_update_bits_nolock(struct snd_ac97 * ac97,unsigned short reg,unsigned short mask,unsigned short value)405 int snd_ac97_update_bits_nolock(struct snd_ac97 *ac97, unsigned short reg,
406 				unsigned short mask, unsigned short value)
407 {
408 	int change;
409 	unsigned short old, new;
410 
411 	old = snd_ac97_read_cache(ac97, reg);
412 	new = (old & ~mask) | (value & mask);
413 	change = old != new;
414 	if (change) {
415 		ac97->regs[reg] = new;
416 		ac97->bus->ops->write(ac97, reg, new);
417 	}
418 	set_bit(reg, ac97->reg_accessed);
419 	return change;
420 }
421 
snd_ac97_ad18xx_update_pcm_bits(struct snd_ac97 * ac97,int codec,unsigned short mask,unsigned short value)422 static int snd_ac97_ad18xx_update_pcm_bits(struct snd_ac97 *ac97, int codec, unsigned short mask, unsigned short value)
423 {
424 	int change;
425 	unsigned short old, new, cfg;
426 
427 	mutex_lock(&ac97->page_mutex);
428 	old = ac97->spec.ad18xx.pcmreg[codec];
429 	new = (old & ~mask) | (value & mask);
430 	change = old != new;
431 	if (change) {
432 		mutex_lock(&ac97->reg_mutex);
433 		cfg = snd_ac97_read_cache(ac97, AC97_AD_SERIAL_CFG);
434 		ac97->spec.ad18xx.pcmreg[codec] = new;
435 		/* select single codec */
436 		ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
437 				 (cfg & ~0x7000) |
438 				 ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
439 		/* update PCM bits */
440 		ac97->bus->ops->write(ac97, AC97_PCM, new);
441 		/* select all codecs */
442 		ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
443 				 cfg | 0x7000);
444 		mutex_unlock(&ac97->reg_mutex);
445 	}
446 	mutex_unlock(&ac97->page_mutex);
447 	return change;
448 }
449 
450 /*
451  * Controls
452  */
453 
snd_ac97_info_enum_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)454 static int snd_ac97_info_enum_double(struct snd_kcontrol *kcontrol,
455 				     struct snd_ctl_elem_info *uinfo)
456 {
457 	struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
458 
459 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
460 	uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
461 	uinfo->value.enumerated.items = e->mask;
462 
463 	if (uinfo->value.enumerated.item > e->mask - 1)
464 		uinfo->value.enumerated.item = e->mask - 1;
465 	strcpy(uinfo->value.enumerated.name, e->texts[uinfo->value.enumerated.item]);
466 	return 0;
467 }
468 
snd_ac97_get_enum_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)469 static int snd_ac97_get_enum_double(struct snd_kcontrol *kcontrol,
470 				    struct snd_ctl_elem_value *ucontrol)
471 {
472 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
473 	struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
474 	unsigned short val, bitmask;
475 
476 	for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
477 		;
478 	val = snd_ac97_read_cache(ac97, e->reg);
479 	ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
480 	if (e->shift_l != e->shift_r)
481 		ucontrol->value.enumerated.item[1] = (val >> e->shift_r) & (bitmask - 1);
482 
483 	return 0;
484 }
485 
snd_ac97_put_enum_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)486 static int snd_ac97_put_enum_double(struct snd_kcontrol *kcontrol,
487 				    struct snd_ctl_elem_value *ucontrol)
488 {
489 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
490 	struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
491 	unsigned short val;
492 	unsigned short mask, bitmask;
493 
494 	for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
495 		;
496 	if (ucontrol->value.enumerated.item[0] > e->mask - 1)
497 		return -EINVAL;
498 	val = ucontrol->value.enumerated.item[0] << e->shift_l;
499 	mask = (bitmask - 1) << e->shift_l;
500 	if (e->shift_l != e->shift_r) {
501 		if (ucontrol->value.enumerated.item[1] > e->mask - 1)
502 			return -EINVAL;
503 		val |= ucontrol->value.enumerated.item[1] << e->shift_r;
504 		mask |= (bitmask - 1) << e->shift_r;
505 	}
506 	return snd_ac97_update_bits(ac97, e->reg, mask, val);
507 }
508 
509 /* save/restore ac97 v2.3 paging */
snd_ac97_page_save(struct snd_ac97 * ac97,int reg,struct snd_kcontrol * kcontrol)510 static int snd_ac97_page_save(struct snd_ac97 *ac97, int reg, struct snd_kcontrol *kcontrol)
511 {
512 	int page_save = -1;
513 	if ((kcontrol->private_value & (1<<25)) &&
514 	    (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23 &&
515 	    (reg >= 0x60 && reg < 0x70)) {
516 		unsigned short page = (kcontrol->private_value >> 26) & 0x0f;
517 		mutex_lock(&ac97->page_mutex); /* lock paging */
518 		page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
519 		snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
520 	}
521 	return page_save;
522 }
523 
snd_ac97_page_restore(struct snd_ac97 * ac97,int page_save)524 static void snd_ac97_page_restore(struct snd_ac97 *ac97, int page_save)
525 {
526 	if (page_save >= 0) {
527 		snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
528 		mutex_unlock(&ac97->page_mutex); /* unlock paging */
529 	}
530 }
531 
532 /* volume and switch controls */
snd_ac97_info_volsw(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)533 static int snd_ac97_info_volsw(struct snd_kcontrol *kcontrol,
534 			       struct snd_ctl_elem_info *uinfo)
535 {
536 	int mask = (kcontrol->private_value >> 16) & 0xff;
537 	int shift = (kcontrol->private_value >> 8) & 0x0f;
538 	int rshift = (kcontrol->private_value >> 12) & 0x0f;
539 
540 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
541 	uinfo->count = shift == rshift ? 1 : 2;
542 	uinfo->value.integer.min = 0;
543 	uinfo->value.integer.max = mask;
544 	return 0;
545 }
546 
snd_ac97_get_volsw(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)547 static int snd_ac97_get_volsw(struct snd_kcontrol *kcontrol,
548 			      struct snd_ctl_elem_value *ucontrol)
549 {
550 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
551 	int reg = kcontrol->private_value & 0xff;
552 	int shift = (kcontrol->private_value >> 8) & 0x0f;
553 	int rshift = (kcontrol->private_value >> 12) & 0x0f;
554 	int mask = (kcontrol->private_value >> 16) & 0xff;
555 	int invert = (kcontrol->private_value >> 24) & 0x01;
556 	int page_save;
557 
558 	page_save = snd_ac97_page_save(ac97, reg, kcontrol);
559 	ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift) & mask;
560 	if (shift != rshift)
561 		ucontrol->value.integer.value[1] = (snd_ac97_read_cache(ac97, reg) >> rshift) & mask;
562 	if (invert) {
563 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
564 		if (shift != rshift)
565 			ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
566 	}
567 	snd_ac97_page_restore(ac97, page_save);
568 	return 0;
569 }
570 
snd_ac97_put_volsw(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)571 static int snd_ac97_put_volsw(struct snd_kcontrol *kcontrol,
572 			      struct snd_ctl_elem_value *ucontrol)
573 {
574 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
575 	int reg = kcontrol->private_value & 0xff;
576 	int shift = (kcontrol->private_value >> 8) & 0x0f;
577 	int rshift = (kcontrol->private_value >> 12) & 0x0f;
578 	int mask = (kcontrol->private_value >> 16) & 0xff;
579 	int invert = (kcontrol->private_value >> 24) & 0x01;
580 	int err, page_save;
581 	unsigned short val, val2, val_mask;
582 
583 	page_save = snd_ac97_page_save(ac97, reg, kcontrol);
584 	val = (ucontrol->value.integer.value[0] & mask);
585 	if (invert)
586 		val = mask - val;
587 	val_mask = mask << shift;
588 	val = val << shift;
589 	if (shift != rshift) {
590 		val2 = (ucontrol->value.integer.value[1] & mask);
591 		if (invert)
592 			val2 = mask - val2;
593 		val_mask |= mask << rshift;
594 		val |= val2 << rshift;
595 	}
596 	err = snd_ac97_update_bits(ac97, reg, val_mask, val);
597 	snd_ac97_page_restore(ac97, page_save);
598 #ifdef CONFIG_SND_AC97_POWER_SAVE
599 	/* check analog mixer power-down */
600 	if ((val_mask & AC97_PD_EAPD) &&
601 	    (kcontrol->private_value & (1<<30))) {
602 		if (val & AC97_PD_EAPD)
603 			ac97->power_up &= ~(1 << (reg>>1));
604 		else
605 			ac97->power_up |= 1 << (reg>>1);
606 		update_power_regs(ac97);
607 	}
608 #endif
609 	return err;
610 }
611 
612 static const struct snd_kcontrol_new snd_ac97_controls_master_mono[2] = {
613 AC97_SINGLE("Master Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
614 AC97_SINGLE("Master Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1)
615 };
616 
617 static const struct snd_kcontrol_new snd_ac97_controls_tone[2] = {
618 AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1),
619 AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1)
620 };
621 
622 static const struct snd_kcontrol_new snd_ac97_controls_pc_beep[2] = {
623 AC97_SINGLE("Beep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
624 AC97_SINGLE("Beep Playback Volume", AC97_PC_BEEP, 1, 15, 1)
625 };
626 
627 static const struct snd_kcontrol_new snd_ac97_controls_mic_boost =
628 	AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0);
629 
630 
631 static const char* std_rec_sel[] = {"Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone"};
632 static const char* std_3d_path[] = {"pre 3D", "post 3D"};
633 static const char* std_mix[] = {"Mix", "Mic"};
634 static const char* std_mic[] = {"Mic1", "Mic2"};
635 
636 static const struct ac97_enum std_enum[] = {
637 AC97_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, std_rec_sel),
638 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, std_3d_path),
639 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, std_mix),
640 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, std_mic),
641 };
642 
643 static const struct snd_kcontrol_new snd_ac97_control_capture_src =
644 AC97_ENUM("Capture Source", std_enum[0]);
645 
646 static const struct snd_kcontrol_new snd_ac97_control_capture_vol =
647 AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0);
648 
649 static const struct snd_kcontrol_new snd_ac97_controls_mic_capture[2] = {
650 AC97_SINGLE("Mic Capture Switch", AC97_REC_GAIN_MIC, 15, 1, 1),
651 AC97_SINGLE("Mic Capture Volume", AC97_REC_GAIN_MIC, 0, 15, 0)
652 };
653 
654 enum {
655 	AC97_GENERAL_PCM_OUT = 0,
656 	AC97_GENERAL_STEREO_ENHANCEMENT,
657 	AC97_GENERAL_3D,
658 	AC97_GENERAL_LOUDNESS,
659 	AC97_GENERAL_MONO,
660 	AC97_GENERAL_MIC,
661 	AC97_GENERAL_LOOPBACK
662 };
663 
664 static const struct snd_kcontrol_new snd_ac97_controls_general[7] = {
665 AC97_ENUM("PCM Out Path & Mute", std_enum[1]),
666 AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0),
667 AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
668 AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0),
669 AC97_ENUM("Mono Output Select", std_enum[2]),
670 AC97_ENUM("Mic Select", std_enum[3]),
671 AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0)
672 };
673 
674 static const struct snd_kcontrol_new snd_ac97_controls_3d[2] = {
675 AC97_SINGLE("3D Control - Center", AC97_3D_CONTROL, 8, 15, 0),
676 AC97_SINGLE("3D Control - Depth", AC97_3D_CONTROL, 0, 15, 0)
677 };
678 
679 static const struct snd_kcontrol_new snd_ac97_controls_center[2] = {
680 AC97_SINGLE("Center Playback Switch", AC97_CENTER_LFE_MASTER, 7, 1, 1),
681 AC97_SINGLE("Center Playback Volume", AC97_CENTER_LFE_MASTER, 0, 31, 1)
682 };
683 
684 static const struct snd_kcontrol_new snd_ac97_controls_lfe[2] = {
685 AC97_SINGLE("LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 1, 1),
686 AC97_SINGLE("LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 31, 1)
687 };
688 
689 static const struct snd_kcontrol_new snd_ac97_control_eapd =
690 AC97_SINGLE("External Amplifier", AC97_POWERDOWN, 15, 1, 1);
691 
692 static const struct snd_kcontrol_new snd_ac97_controls_modem_switches[2] = {
693 AC97_SINGLE("Off-hook Switch", AC97_GPIO_STATUS, 0, 1, 0),
694 AC97_SINGLE("Caller ID Switch", AC97_GPIO_STATUS, 2, 1, 0)
695 };
696 
697 /* change the existing EAPD control as inverted */
set_inv_eapd(struct snd_ac97 * ac97,struct snd_kcontrol * kctl)698 static void set_inv_eapd(struct snd_ac97 *ac97, struct snd_kcontrol *kctl)
699 {
700 	kctl->private_value = AC97_SINGLE_VALUE(AC97_POWERDOWN, 15, 1, 0);
701 	snd_ac97_update_bits(ac97, AC97_POWERDOWN, (1<<15), (1<<15)); /* EAPD up */
702 	ac97->scaps |= AC97_SCAP_INV_EAPD;
703 }
704 
snd_ac97_spdif_mask_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)705 static int snd_ac97_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
706 {
707 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
708 	uinfo->count = 1;
709 	return 0;
710 }
711 
snd_ac97_spdif_cmask_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)712 static int snd_ac97_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
713 {
714 	ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
715 					   IEC958_AES0_NONAUDIO |
716 					   IEC958_AES0_CON_EMPHASIS_5015 |
717 					   IEC958_AES0_CON_NOT_COPYRIGHT;
718 	ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
719 					   IEC958_AES1_CON_ORIGINAL;
720 	ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
721 	return 0;
722 }
723 
snd_ac97_spdif_pmask_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)724 static int snd_ac97_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
725 {
726 	/* FIXME: AC'97 spec doesn't say which bits are used for what */
727 	ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
728 					   IEC958_AES0_NONAUDIO |
729 					   IEC958_AES0_PRO_FS |
730 					   IEC958_AES0_PRO_EMPHASIS_5015;
731 	return 0;
732 }
733 
snd_ac97_spdif_default_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)734 static int snd_ac97_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
735 {
736 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
737 
738 	mutex_lock(&ac97->reg_mutex);
739 	ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff;
740 	ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff;
741 	ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff;
742 	ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff;
743 	mutex_unlock(&ac97->reg_mutex);
744 	return 0;
745 }
746 
snd_ac97_spdif_default_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)747 static int snd_ac97_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
748 {
749 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
750 	unsigned int new = 0;
751 	unsigned short val = 0;
752 	int change;
753 
754 	new = val = ucontrol->value.iec958.status[0] & (IEC958_AES0_PROFESSIONAL|IEC958_AES0_NONAUDIO);
755 	if (ucontrol->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL) {
756 		new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_PRO_FS|IEC958_AES0_PRO_EMPHASIS_5015);
757 		switch (new & IEC958_AES0_PRO_FS) {
758 		case IEC958_AES0_PRO_FS_44100: val |= 0<<12; break;
759 		case IEC958_AES0_PRO_FS_48000: val |= 2<<12; break;
760 		case IEC958_AES0_PRO_FS_32000: val |= 3<<12; break;
761 		default:		       val |= 1<<12; break;
762 		}
763 		if ((new & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
764 			val |= 1<<3;
765 	} else {
766 		new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT);
767 		new |= ((ucontrol->value.iec958.status[1] & (IEC958_AES1_CON_CATEGORY|IEC958_AES1_CON_ORIGINAL)) << 8);
768 		new |= ((ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) << 24);
769 		if ((new & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
770 			val |= 1<<3;
771 		if (!(new & IEC958_AES0_CON_NOT_COPYRIGHT))
772 			val |= 1<<2;
773 		val |= ((new >> 8) & 0xff) << 4;	// category + original
774 		switch ((new >> 24) & 0xff) {
775 		case IEC958_AES3_CON_FS_44100: val |= 0<<12; break;
776 		case IEC958_AES3_CON_FS_48000: val |= 2<<12; break;
777 		case IEC958_AES3_CON_FS_32000: val |= 3<<12; break;
778 		default:		       val |= 1<<12; break;
779 		}
780 	}
781 
782 	mutex_lock(&ac97->reg_mutex);
783 	change = ac97->spdif_status != new;
784 	ac97->spdif_status = new;
785 
786 	if (ac97->flags & AC97_CS_SPDIF) {
787 		int x = (val >> 12) & 0x03;
788 		switch (x) {
789 		case 0: x = 1; break;  // 44.1
790 		case 2: x = 0; break;  // 48.0
791 		default: x = 0; break; // illegal.
792 		}
793 		change |= snd_ac97_update_bits_nolock(ac97, AC97_CSR_SPDIF, 0x3fff, ((val & 0xcfff) | (x << 12)));
794 	} else if (ac97->flags & AC97_CX_SPDIF) {
795 		int v;
796 		v = new & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT) ? 0 : AC97_CXR_COPYRGT;
797 		v |= new & IEC958_AES0_NONAUDIO ? AC97_CXR_SPDIF_AC3 : AC97_CXR_SPDIF_PCM;
798 		change |= snd_ac97_update_bits_nolock(ac97, AC97_CXR_AUDIO_MISC,
799 						      AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT,
800 						      v);
801 	} else if (ac97->id == AC97_ID_YMF743) {
802 		change |= snd_ac97_update_bits_nolock(ac97,
803 						      AC97_YMF7X3_DIT_CTRL,
804 						      0xff38,
805 						      ((val << 4) & 0xff00) |
806 						      ((val << 2) & 0x0038));
807 	} else {
808 		unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
809 		snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
810 
811 		change |= snd_ac97_update_bits_nolock(ac97, AC97_SPDIF, 0x3fff, val);
812 		if (extst & AC97_EA_SPDIF) {
813 			snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
814                 }
815 	}
816 	mutex_unlock(&ac97->reg_mutex);
817 
818 	return change;
819 }
820 
snd_ac97_put_spsa(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)821 static int snd_ac97_put_spsa(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
822 {
823 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
824 	int reg = kcontrol->private_value & 0xff;
825 	int shift = (kcontrol->private_value >> 8) & 0xff;
826 	int mask = (kcontrol->private_value >> 16) & 0xff;
827 	// int invert = (kcontrol->private_value >> 24) & 0xff;
828 	unsigned short value, old, new;
829 	int change;
830 
831 	value = (ucontrol->value.integer.value[0] & mask);
832 
833 	mutex_lock(&ac97->reg_mutex);
834 	mask <<= shift;
835 	value <<= shift;
836 	old = snd_ac97_read_cache(ac97, reg);
837 	new = (old & ~mask) | value;
838 	change = old != new;
839 
840 	if (change) {
841 		unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
842 		snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
843 		change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
844 		if (extst & AC97_EA_SPDIF)
845 			snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
846 	}
847 	mutex_unlock(&ac97->reg_mutex);
848 	return change;
849 }
850 
851 static const struct snd_kcontrol_new snd_ac97_controls_spdif[5] = {
852 	{
853 		.access = SNDRV_CTL_ELEM_ACCESS_READ,
854 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
855 		.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
856 		.info = snd_ac97_spdif_mask_info,
857 		.get = snd_ac97_spdif_cmask_get,
858 	},
859 	{
860 		.access = SNDRV_CTL_ELEM_ACCESS_READ,
861 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
862 		.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
863 		.info = snd_ac97_spdif_mask_info,
864 		.get = snd_ac97_spdif_pmask_get,
865 	},
866 	{
867 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
868 		.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
869 		.info = snd_ac97_spdif_mask_info,
870 		.get = snd_ac97_spdif_default_get,
871 		.put = snd_ac97_spdif_default_put,
872 	},
873 
874 	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),AC97_EXTENDED_STATUS, 2, 1, 0),
875 	{
876 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
877 		.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA",
878 		.info = snd_ac97_info_volsw,
879 		.get = snd_ac97_get_volsw,
880 		.put = snd_ac97_put_spsa,
881 		.private_value = AC97_SINGLE_VALUE(AC97_EXTENDED_STATUS, 4, 3, 0)
882 	},
883 };
884 
885 #define AD18XX_PCM_BITS(xname, codec, lshift, rshift, mask) \
886 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_bits, \
887   .get = snd_ac97_ad18xx_pcm_get_bits, .put = snd_ac97_ad18xx_pcm_put_bits, \
888   .private_value = (codec) | ((lshift) << 8) | ((rshift) << 12) | ((mask) << 16) }
889 
snd_ac97_ad18xx_pcm_info_bits(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)890 static int snd_ac97_ad18xx_pcm_info_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
891 {
892 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
893 	int mask = (kcontrol->private_value >> 16) & 0x0f;
894 	int lshift = (kcontrol->private_value >> 8) & 0x0f;
895 	int rshift = (kcontrol->private_value >> 12) & 0x0f;
896 
897 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
898 	if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
899 		uinfo->count = 2;
900 	else
901 		uinfo->count = 1;
902 	uinfo->value.integer.min = 0;
903 	uinfo->value.integer.max = mask;
904 	return 0;
905 }
906 
snd_ac97_ad18xx_pcm_get_bits(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)907 static int snd_ac97_ad18xx_pcm_get_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
908 {
909 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
910 	int codec = kcontrol->private_value & 3;
911 	int lshift = (kcontrol->private_value >> 8) & 0x0f;
912 	int rshift = (kcontrol->private_value >> 12) & 0x0f;
913 	int mask = (kcontrol->private_value >> 16) & 0xff;
914 
915 	ucontrol->value.integer.value[0] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> lshift) & mask);
916 	if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
917 		ucontrol->value.integer.value[1] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> rshift) & mask);
918 	return 0;
919 }
920 
snd_ac97_ad18xx_pcm_put_bits(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)921 static int snd_ac97_ad18xx_pcm_put_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
922 {
923 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
924 	int codec = kcontrol->private_value & 3;
925 	int lshift = (kcontrol->private_value >> 8) & 0x0f;
926 	int rshift = (kcontrol->private_value >> 12) & 0x0f;
927 	int mask = (kcontrol->private_value >> 16) & 0xff;
928 	unsigned short val, valmask;
929 
930 	val = (mask - (ucontrol->value.integer.value[0] & mask)) << lshift;
931 	valmask = mask << lshift;
932 	if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) {
933 		val |= (mask - (ucontrol->value.integer.value[1] & mask)) << rshift;
934 		valmask |= mask << rshift;
935 	}
936 	return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, valmask, val);
937 }
938 
939 #define AD18XX_PCM_VOLUME(xname, codec) \
940 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_volume, \
941   .get = snd_ac97_ad18xx_pcm_get_volume, .put = snd_ac97_ad18xx_pcm_put_volume, \
942   .private_value = codec }
943 
snd_ac97_ad18xx_pcm_info_volume(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)944 static int snd_ac97_ad18xx_pcm_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
945 {
946 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
947 	uinfo->count = 2;
948 	uinfo->value.integer.min = 0;
949 	uinfo->value.integer.max = 31;
950 	return 0;
951 }
952 
snd_ac97_ad18xx_pcm_get_volume(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)953 static int snd_ac97_ad18xx_pcm_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
954 {
955 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
956 	int codec = kcontrol->private_value & 3;
957 
958 	mutex_lock(&ac97->page_mutex);
959 	ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
960 	ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
961 	mutex_unlock(&ac97->page_mutex);
962 	return 0;
963 }
964 
snd_ac97_ad18xx_pcm_put_volume(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)965 static int snd_ac97_ad18xx_pcm_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
966 {
967 	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
968 	int codec = kcontrol->private_value & 3;
969 	unsigned short val1, val2;
970 
971 	val1 = 31 - (ucontrol->value.integer.value[0] & 31);
972 	val2 = 31 - (ucontrol->value.integer.value[1] & 31);
973 	return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, 0x1f1f, (val1 << 8) | val2);
974 }
975 
976 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_pcm[2] = {
977 AD18XX_PCM_BITS("PCM Playback Switch", 0, 15, 7, 1),
978 AD18XX_PCM_VOLUME("PCM Playback Volume", 0)
979 };
980 
981 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_surround[2] = {
982 AD18XX_PCM_BITS("Surround Playback Switch", 1, 15, 7, 1),
983 AD18XX_PCM_VOLUME("Surround Playback Volume", 1)
984 };
985 
986 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_center[2] = {
987 AD18XX_PCM_BITS("Center Playback Switch", 2, 15, 15, 1),
988 AD18XX_PCM_BITS("Center Playback Volume", 2, 8, 8, 31)
989 };
990 
991 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_lfe[2] = {
992 AD18XX_PCM_BITS("LFE Playback Switch", 2, 7, 7, 1),
993 AD18XX_PCM_BITS("LFE Playback Volume", 2, 0, 0, 31)
994 };
995 
996 /*
997  *
998  */
999 
1000 static void snd_ac97_powerdown(struct snd_ac97 *ac97);
1001 
snd_ac97_bus_free(struct snd_ac97_bus * bus)1002 static int snd_ac97_bus_free(struct snd_ac97_bus *bus)
1003 {
1004 	if (bus) {
1005 		snd_ac97_bus_proc_done(bus);
1006 		kfree(bus->pcms);
1007 		if (bus->private_free)
1008 			bus->private_free(bus);
1009 		kfree(bus);
1010 	}
1011 	return 0;
1012 }
1013 
snd_ac97_bus_dev_free(struct snd_device * device)1014 static int snd_ac97_bus_dev_free(struct snd_device *device)
1015 {
1016 	struct snd_ac97_bus *bus = device->device_data;
1017 	return snd_ac97_bus_free(bus);
1018 }
1019 
snd_ac97_free(struct snd_ac97 * ac97)1020 static int snd_ac97_free(struct snd_ac97 *ac97)
1021 {
1022 	if (ac97) {
1023 #ifdef CONFIG_SND_AC97_POWER_SAVE
1024 		cancel_delayed_work_sync(&ac97->power_work);
1025 #endif
1026 		snd_ac97_proc_done(ac97);
1027 		if (ac97->bus)
1028 			ac97->bus->codec[ac97->num] = NULL;
1029 		if (ac97->private_free)
1030 			ac97->private_free(ac97);
1031 		kfree(ac97);
1032 	}
1033 	return 0;
1034 }
1035 
snd_ac97_dev_free(struct snd_device * device)1036 static int snd_ac97_dev_free(struct snd_device *device)
1037 {
1038 	struct snd_ac97 *ac97 = device->device_data;
1039 	snd_ac97_powerdown(ac97); /* for avoiding click noises during shut down */
1040 	return snd_ac97_free(ac97);
1041 }
1042 
snd_ac97_try_volume_mix(struct snd_ac97 * ac97,int reg)1043 static int snd_ac97_try_volume_mix(struct snd_ac97 * ac97, int reg)
1044 {
1045 	unsigned short val, mask = AC97_MUTE_MASK_MONO;
1046 
1047 	if (! snd_ac97_valid_reg(ac97, reg))
1048 		return 0;
1049 
1050 	switch (reg) {
1051 	case AC97_MASTER_TONE:
1052 		return ac97->caps & AC97_BC_BASS_TREBLE ? 1 : 0;
1053 	case AC97_HEADPHONE:
1054 		return ac97->caps & AC97_BC_HEADPHONE ? 1 : 0;
1055 	case AC97_REC_GAIN_MIC:
1056 		return ac97->caps & AC97_BC_DEDICATED_MIC ? 1 : 0;
1057 	case AC97_3D_CONTROL:
1058 		if (ac97->caps & AC97_BC_3D_TECH_ID_MASK) {
1059 			val = snd_ac97_read(ac97, reg);
1060 			/* if nonzero - fixed and we can't set it */
1061 			return val == 0;
1062 		}
1063 		return 0;
1064 	case AC97_CENTER_LFE_MASTER:	/* center */
1065 		if ((ac97->ext_id & AC97_EI_CDAC) == 0)
1066 			return 0;
1067 		break;
1068 	case AC97_CENTER_LFE_MASTER+1:	/* lfe */
1069 		if ((ac97->ext_id & AC97_EI_LDAC) == 0)
1070 			return 0;
1071 		reg = AC97_CENTER_LFE_MASTER;
1072 		mask = 0x0080;
1073 		break;
1074 	case AC97_SURROUND_MASTER:
1075 		if ((ac97->ext_id & AC97_EI_SDAC) == 0)
1076 			return 0;
1077 		break;
1078 	}
1079 
1080 	val = snd_ac97_read(ac97, reg);
1081 	if (!(val & mask)) {
1082 		/* nothing seems to be here - mute flag is not set */
1083 		/* try another test */
1084 		snd_ac97_write_cache(ac97, reg, val | mask);
1085 		val = snd_ac97_read(ac97, reg);
1086 		val = snd_ac97_read(ac97, reg);
1087 		if (!(val & mask))
1088 			return 0;	/* nothing here */
1089 	}
1090 	return 1;		/* success, useable */
1091 }
1092 
check_volume_resolution(struct snd_ac97 * ac97,int reg,unsigned char * lo_max,unsigned char * hi_max)1093 static void check_volume_resolution(struct snd_ac97 *ac97, int reg, unsigned char *lo_max, unsigned char *hi_max)
1094 {
1095 	unsigned short cbit[3] = { 0x20, 0x10, 0x01 };
1096 	unsigned char max[3] = { 63, 31, 15 };
1097 	int i;
1098 
1099 	/* first look up the static resolution table */
1100 	if (ac97->res_table) {
1101 		const struct snd_ac97_res_table *tbl;
1102 		for (tbl = ac97->res_table; tbl->reg; tbl++) {
1103 			if (tbl->reg == reg) {
1104 				*lo_max = tbl->bits & 0xff;
1105 				*hi_max = (tbl->bits >> 8) & 0xff;
1106 				return;
1107 			}
1108 		}
1109 	}
1110 
1111 	*lo_max = *hi_max = 0;
1112 	for (i = 0 ; i < ARRAY_SIZE(cbit); i++) {
1113 		unsigned short val;
1114 		snd_ac97_write(
1115 			ac97, reg,
1116 			AC97_MUTE_MASK_STEREO | cbit[i] | (cbit[i] << 8)
1117 		);
1118 		/* Do the read twice due to buffers on some ac97 codecs.
1119 		 * e.g. The STAC9704 returns exactly what you wrote to the register
1120 		 * if you read it immediately. This causes the detect routine to fail.
1121 		 */
1122 		val = snd_ac97_read(ac97, reg);
1123 		val = snd_ac97_read(ac97, reg);
1124 		if (! *lo_max && (val & 0x7f) == cbit[i])
1125 			*lo_max = max[i];
1126 		if (! *hi_max && ((val >> 8) & 0x7f) == cbit[i])
1127 			*hi_max = max[i];
1128 		if (*lo_max && *hi_max)
1129 			break;
1130 	}
1131 }
1132 
snd_ac97_try_bit(struct snd_ac97 * ac97,int reg,int bit)1133 static int snd_ac97_try_bit(struct snd_ac97 * ac97, int reg, int bit)
1134 {
1135 	unsigned short mask, val, orig, res;
1136 
1137 	mask = 1 << bit;
1138 	orig = snd_ac97_read(ac97, reg);
1139 	val = orig ^ mask;
1140 	snd_ac97_write(ac97, reg, val);
1141 	res = snd_ac97_read(ac97, reg);
1142 	snd_ac97_write_cache(ac97, reg, orig);
1143 	return res == val;
1144 }
1145 
1146 /* check the volume resolution of center/lfe */
snd_ac97_change_volume_params2(struct snd_ac97 * ac97,int reg,int shift,unsigned char * max)1147 static void snd_ac97_change_volume_params2(struct snd_ac97 * ac97, int reg, int shift, unsigned char *max)
1148 {
1149 	unsigned short val, val1;
1150 
1151 	*max = 63;
1152 	val = AC97_MUTE_MASK_STEREO | (0x20 << shift);
1153 	snd_ac97_write(ac97, reg, val);
1154 	val1 = snd_ac97_read(ac97, reg);
1155 	if (val != val1) {
1156 		*max = 31;
1157 	}
1158 	/* reset volume to zero */
1159 	snd_ac97_write_cache(ac97, reg, AC97_MUTE_MASK_STEREO);
1160 }
1161 
printable(unsigned int x)1162 static inline int printable(unsigned int x)
1163 {
1164 	x &= 0xff;
1165 	if (x < ' ' || x >= 0x71) {
1166 		if (x <= 0x89)
1167 			return x - 0x71 + 'A';
1168 		return '?';
1169 	}
1170 	return x;
1171 }
1172 
snd_ac97_cnew(const struct snd_kcontrol_new * _template,struct snd_ac97 * ac97)1173 static struct snd_kcontrol *snd_ac97_cnew(const struct snd_kcontrol_new *_template,
1174 					  struct snd_ac97 * ac97)
1175 {
1176 	struct snd_kcontrol_new template;
1177 	memcpy(&template, _template, sizeof(template));
1178 	template.index = ac97->num;
1179 	return snd_ctl_new1(&template, ac97);
1180 }
1181 
1182 /*
1183  * create mute switch(es) for normal stereo controls
1184  */
snd_ac97_cmute_new_stereo(struct snd_card * card,char * name,int reg,int check_stereo,int check_amix,struct snd_ac97 * ac97)1185 static int snd_ac97_cmute_new_stereo(struct snd_card *card, char *name, int reg,
1186 				     int check_stereo, int check_amix,
1187 				     struct snd_ac97 *ac97)
1188 {
1189 	struct snd_kcontrol *kctl;
1190 	int err;
1191 	unsigned short val, val1, mute_mask;
1192 
1193 	if (! snd_ac97_valid_reg(ac97, reg))
1194 		return 0;
1195 
1196 	mute_mask = AC97_MUTE_MASK_MONO;
1197 	val = snd_ac97_read(ac97, reg);
1198 	if (check_stereo || (ac97->flags & AC97_STEREO_MUTES)) {
1199 		/* check whether both mute bits work */
1200 		val1 = val | AC97_MUTE_MASK_STEREO;
1201 		snd_ac97_write(ac97, reg, val1);
1202 		if (val1 == snd_ac97_read(ac97, reg))
1203 			mute_mask = AC97_MUTE_MASK_STEREO;
1204 	}
1205 	if (mute_mask == AC97_MUTE_MASK_STEREO) {
1206 		struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 15, 7, 1, 1);
1207 		if (check_amix)
1208 			tmp.private_value |= (1 << 30);
1209 		tmp.index = ac97->num;
1210 		kctl = snd_ctl_new1(&tmp, ac97);
1211 	} else {
1212 		struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 15, 1, 1);
1213 		if (check_amix)
1214 			tmp.private_value |= (1 << 30);
1215 		tmp.index = ac97->num;
1216 		kctl = snd_ctl_new1(&tmp, ac97);
1217 	}
1218 	err = snd_ctl_add(card, kctl);
1219 	if (err < 0)
1220 		return err;
1221 	/* mute as default */
1222 	snd_ac97_write_cache(ac97, reg, val | mute_mask);
1223 	return 0;
1224 }
1225 
1226 /*
1227  * set dB information
1228  */
1229 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
1230 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
1231 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
1232 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
1233 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
1234 
find_db_scale(unsigned int maxval)1235 static const unsigned int *find_db_scale(unsigned int maxval)
1236 {
1237 	switch (maxval) {
1238 	case 0x0f: return db_scale_4bit;
1239 	case 0x1f: return db_scale_5bit;
1240 	case 0x3f: return db_scale_6bit;
1241 	}
1242 	return NULL;
1243 }
1244 
set_tlv_db_scale(struct snd_kcontrol * kctl,const unsigned int * tlv)1245 static void set_tlv_db_scale(struct snd_kcontrol *kctl, const unsigned int *tlv)
1246 {
1247 	kctl->tlv.p = tlv;
1248 	if (tlv)
1249 		kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1250 }
1251 
1252 /*
1253  * create a volume for normal stereo/mono controls
1254  */
snd_ac97_cvol_new(struct snd_card * card,char * name,int reg,unsigned int lo_max,unsigned int hi_max,struct snd_ac97 * ac97)1255 static int snd_ac97_cvol_new(struct snd_card *card, char *name, int reg, unsigned int lo_max,
1256 			     unsigned int hi_max, struct snd_ac97 *ac97)
1257 {
1258 	int err;
1259 	struct snd_kcontrol *kctl;
1260 
1261 	if (! snd_ac97_valid_reg(ac97, reg))
1262 		return 0;
1263 	if (hi_max) {
1264 		/* invert */
1265 		struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 8, 0, lo_max, 1);
1266 		tmp.index = ac97->num;
1267 		kctl = snd_ctl_new1(&tmp, ac97);
1268 	} else {
1269 		/* invert */
1270 		struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 0, lo_max, 1);
1271 		tmp.index = ac97->num;
1272 		kctl = snd_ctl_new1(&tmp, ac97);
1273 	}
1274 	if (!kctl)
1275 		return -ENOMEM;
1276 	if (reg >= AC97_PHONE && reg <= AC97_PCM)
1277 		set_tlv_db_scale(kctl, db_scale_5bit_12db_max);
1278 	else
1279 		set_tlv_db_scale(kctl, find_db_scale(lo_max));
1280 	err = snd_ctl_add(card, kctl);
1281 	if (err < 0)
1282 		return err;
1283 	snd_ac97_write_cache(
1284 		ac97, reg,
1285 		(snd_ac97_read(ac97, reg) & AC97_MUTE_MASK_STEREO)
1286 		| lo_max | (hi_max << 8)
1287 	);
1288 	return 0;
1289 }
1290 
1291 /*
1292  * create a mute-switch and a volume for normal stereo/mono controls
1293  */
snd_ac97_cmix_new_stereo(struct snd_card * card,const char * pfx,int reg,int check_stereo,int check_amix,struct snd_ac97 * ac97)1294 static int snd_ac97_cmix_new_stereo(struct snd_card *card, const char *pfx,
1295 				    int reg, int check_stereo, int check_amix,
1296 				    struct snd_ac97 *ac97)
1297 {
1298 	int err;
1299 	char name[44];
1300 	unsigned char lo_max, hi_max;
1301 
1302 	if (! snd_ac97_valid_reg(ac97, reg))
1303 		return 0;
1304 
1305 	if (snd_ac97_try_bit(ac97, reg, 15)) {
1306 		sprintf(name, "%s Switch", pfx);
1307 		if ((err = snd_ac97_cmute_new_stereo(card, name, reg,
1308 						     check_stereo, check_amix,
1309 						     ac97)) < 0)
1310 			return err;
1311 	}
1312 	check_volume_resolution(ac97, reg, &lo_max, &hi_max);
1313 	if (lo_max) {
1314 		sprintf(name, "%s Volume", pfx);
1315 		if ((err = snd_ac97_cvol_new(card, name, reg, lo_max, hi_max, ac97)) < 0)
1316 			return err;
1317 	}
1318 	return 0;
1319 }
1320 
1321 #define snd_ac97_cmix_new(card, pfx, reg, acheck, ac97) \
1322 	snd_ac97_cmix_new_stereo(card, pfx, reg, 0, acheck, ac97)
1323 #define snd_ac97_cmute_new(card, name, reg, acheck, ac97) \
1324 	snd_ac97_cmute_new_stereo(card, name, reg, 0, acheck, ac97)
1325 
1326 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97);
1327 
snd_ac97_mixer_build(struct snd_ac97 * ac97)1328 static int snd_ac97_mixer_build(struct snd_ac97 * ac97)
1329 {
1330 	struct snd_card *card = ac97->bus->card;
1331 	struct snd_kcontrol *kctl;
1332 	int err;
1333 	unsigned int idx;
1334 	unsigned char max;
1335 
1336 	/* build master controls */
1337 	/* AD claims to remove this control from AD1887, although spec v2.2 does not allow this */
1338 	if (snd_ac97_try_volume_mix(ac97, AC97_MASTER)) {
1339 		if (ac97->flags & AC97_HAS_NO_MASTER_VOL)
1340 			err = snd_ac97_cmute_new(card, "Master Playback Switch",
1341 						 AC97_MASTER, 0, ac97);
1342 		else
1343 			err = snd_ac97_cmix_new(card, "Master Playback",
1344 						AC97_MASTER, 0, ac97);
1345 		if (err < 0)
1346 			return err;
1347 	}
1348 
1349 	ac97->regs[AC97_CENTER_LFE_MASTER] = AC97_MUTE_MASK_STEREO;
1350 
1351 	/* build center controls */
1352 	if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER))
1353 		&& !(ac97->flags & AC97_AD_MULTI)) {
1354 		if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_center[0], ac97))) < 0)
1355 			return err;
1356 		if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_center[1], ac97))) < 0)
1357 			return err;
1358 		snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 0, &max);
1359 		kctl->private_value &= ~(0xff << 16);
1360 		kctl->private_value |= (int)max << 16;
1361 		set_tlv_db_scale(kctl, find_db_scale(max));
1362 		snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max);
1363 	}
1364 
1365 	/* build LFE controls */
1366 	if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER+1))
1367 		&& !(ac97->flags & AC97_AD_MULTI)) {
1368 		if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_lfe[0], ac97))) < 0)
1369 			return err;
1370 		if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_lfe[1], ac97))) < 0)
1371 			return err;
1372 		snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 8, &max);
1373 		kctl->private_value &= ~(0xff << 16);
1374 		kctl->private_value |= (int)max << 16;
1375 		set_tlv_db_scale(kctl, find_db_scale(max));
1376 		snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max << 8);
1377 	}
1378 
1379 	/* build surround controls */
1380 	if ((snd_ac97_try_volume_mix(ac97, AC97_SURROUND_MASTER))
1381 		&& !(ac97->flags & AC97_AD_MULTI)) {
1382 		/* Surround Master (0x38) is with stereo mutes */
1383 		if ((err = snd_ac97_cmix_new_stereo(card, "Surround Playback",
1384 						    AC97_SURROUND_MASTER, 1, 0,
1385 						    ac97)) < 0)
1386 			return err;
1387 	}
1388 
1389 	/* build headphone controls */
1390 	if (snd_ac97_try_volume_mix(ac97, AC97_HEADPHONE)) {
1391 		if ((err = snd_ac97_cmix_new(card, "Headphone Playback",
1392 					     AC97_HEADPHONE, 0, ac97)) < 0)
1393 			return err;
1394 	}
1395 
1396 	/* build master mono controls */
1397 	if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_MONO)) {
1398 		if ((err = snd_ac97_cmix_new(card, "Master Mono Playback",
1399 					     AC97_MASTER_MONO, 0, ac97)) < 0)
1400 			return err;
1401 	}
1402 
1403 	/* build master tone controls */
1404 	if (!(ac97->flags & AC97_HAS_NO_TONE)) {
1405 		if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_TONE)) {
1406 			for (idx = 0; idx < 2; idx++) {
1407 				if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97))) < 0)
1408 					return err;
1409 				if (ac97->id == AC97_ID_YMF743 ||
1410 				    ac97->id == AC97_ID_YMF753) {
1411 					kctl->private_value &= ~(0xff << 16);
1412 					kctl->private_value |= 7 << 16;
1413 				}
1414 			}
1415 			snd_ac97_write_cache(ac97, AC97_MASTER_TONE, 0x0f0f);
1416 		}
1417 	}
1418 
1419 	/* build Beep controls */
1420 	if (!(ac97->flags & AC97_HAS_NO_PC_BEEP) &&
1421 		((ac97->flags & AC97_HAS_PC_BEEP) ||
1422 	    snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP))) {
1423 		for (idx = 0; idx < 2; idx++)
1424 			if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_pc_beep[idx], ac97))) < 0)
1425 				return err;
1426 		set_tlv_db_scale(kctl, db_scale_4bit);
1427 		snd_ac97_write_cache(
1428 			ac97,
1429 			AC97_PC_BEEP,
1430 			(snd_ac97_read(ac97, AC97_PC_BEEP)
1431 				| AC97_MUTE_MASK_MONO | 0x001e)
1432 		);
1433 	}
1434 
1435 	/* build Phone controls */
1436 	if (!(ac97->flags & AC97_HAS_NO_PHONE)) {
1437 		if (snd_ac97_try_volume_mix(ac97, AC97_PHONE)) {
1438 			if ((err = snd_ac97_cmix_new(card, "Phone Playback",
1439 						     AC97_PHONE, 1, ac97)) < 0)
1440 				return err;
1441 		}
1442 	}
1443 
1444 	/* build MIC controls */
1445 	if (!(ac97->flags & AC97_HAS_NO_MIC)) {
1446 		if (snd_ac97_try_volume_mix(ac97, AC97_MIC)) {
1447 			if ((err = snd_ac97_cmix_new(card, "Mic Playback",
1448 						     AC97_MIC, 1, ac97)) < 0)
1449 				return err;
1450 			if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_boost, ac97))) < 0)
1451 				return err;
1452 		}
1453 	}
1454 
1455 	/* build Line controls */
1456 	if (snd_ac97_try_volume_mix(ac97, AC97_LINE)) {
1457 		if ((err = snd_ac97_cmix_new(card, "Line Playback",
1458 					     AC97_LINE, 1, ac97)) < 0)
1459 			return err;
1460 	}
1461 
1462 	/* build CD controls */
1463 	if (!(ac97->flags & AC97_HAS_NO_CD)) {
1464 		if (snd_ac97_try_volume_mix(ac97, AC97_CD)) {
1465 			if ((err = snd_ac97_cmix_new(card, "CD Playback",
1466 						     AC97_CD, 1, ac97)) < 0)
1467 				return err;
1468 		}
1469 	}
1470 
1471 	/* build Video controls */
1472 	if (!(ac97->flags & AC97_HAS_NO_VIDEO)) {
1473 		if (snd_ac97_try_volume_mix(ac97, AC97_VIDEO)) {
1474 			if ((err = snd_ac97_cmix_new(card, "Video Playback",
1475 						     AC97_VIDEO, 1, ac97)) < 0)
1476 				return err;
1477 		}
1478 	}
1479 
1480 	/* build Aux controls */
1481 	if (!(ac97->flags & AC97_HAS_NO_AUX)) {
1482 		if (snd_ac97_try_volume_mix(ac97, AC97_AUX)) {
1483 			if ((err = snd_ac97_cmix_new(card, "Aux Playback",
1484 						     AC97_AUX, 1, ac97)) < 0)
1485 				return err;
1486 		}
1487 	}
1488 
1489 	/* build PCM controls */
1490 	if (ac97->flags & AC97_AD_MULTI) {
1491 		unsigned short init_val;
1492 		if (ac97->flags & AC97_STEREO_MUTES)
1493 			init_val = 0x9f9f;
1494 		else
1495 			init_val = 0x9f1f;
1496 		for (idx = 0; idx < 2; idx++)
1497 			if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_pcm[idx], ac97))) < 0)
1498 				return err;
1499 		set_tlv_db_scale(kctl, db_scale_5bit);
1500 		ac97->spec.ad18xx.pcmreg[0] = init_val;
1501 		if (ac97->scaps & AC97_SCAP_SURROUND_DAC) {
1502 			for (idx = 0; idx < 2; idx++)
1503 				if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_surround[idx], ac97))) < 0)
1504 					return err;
1505 			set_tlv_db_scale(kctl, db_scale_5bit);
1506 			ac97->spec.ad18xx.pcmreg[1] = init_val;
1507 		}
1508 		if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) {
1509 			for (idx = 0; idx < 2; idx++)
1510 				if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_center[idx], ac97))) < 0)
1511 					return err;
1512 			set_tlv_db_scale(kctl, db_scale_5bit);
1513 			for (idx = 0; idx < 2; idx++)
1514 				if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_lfe[idx], ac97))) < 0)
1515 					return err;
1516 			set_tlv_db_scale(kctl, db_scale_5bit);
1517 			ac97->spec.ad18xx.pcmreg[2] = init_val;
1518 		}
1519 		snd_ac97_write_cache(ac97, AC97_PCM, init_val);
1520 	} else {
1521 		if (!(ac97->flags & AC97_HAS_NO_STD_PCM)) {
1522 			if (ac97->flags & AC97_HAS_NO_PCM_VOL)
1523 				err = snd_ac97_cmute_new(card,
1524 							 "PCM Playback Switch",
1525 							 AC97_PCM, 0, ac97);
1526 			else
1527 				err = snd_ac97_cmix_new(card, "PCM Playback",
1528 							AC97_PCM, 0, ac97);
1529 			if (err < 0)
1530 				return err;
1531 		}
1532 	}
1533 
1534 	/* build Capture controls */
1535 	if (!(ac97->flags & AC97_HAS_NO_REC_GAIN)) {
1536 		if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_src, ac97))) < 0)
1537 			return err;
1538 		if (snd_ac97_try_bit(ac97, AC97_REC_GAIN, 15)) {
1539 			err = snd_ac97_cmute_new(card, "Capture Switch",
1540 						 AC97_REC_GAIN, 0, ac97);
1541 			if (err < 0)
1542 				return err;
1543 		}
1544 		if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_control_capture_vol, ac97))) < 0)
1545 			return err;
1546 		set_tlv_db_scale(kctl, db_scale_rec_gain);
1547 		snd_ac97_write_cache(ac97, AC97_REC_SEL, 0x0000);
1548 		snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x0000);
1549 	}
1550 	/* build MIC Capture controls */
1551 	if (snd_ac97_try_volume_mix(ac97, AC97_REC_GAIN_MIC)) {
1552 		for (idx = 0; idx < 2; idx++)
1553 			if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_mic_capture[idx], ac97))) < 0)
1554 				return err;
1555 		set_tlv_db_scale(kctl, db_scale_rec_gain);
1556 		snd_ac97_write_cache(ac97, AC97_REC_GAIN_MIC, 0x0000);
1557 	}
1558 
1559 	/* build PCM out path & mute control */
1560 	if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 15)) {
1561 		if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_PCM_OUT], ac97))) < 0)
1562 			return err;
1563 	}
1564 
1565 	/* build Simulated Stereo Enhancement control */
1566 	if (ac97->caps & AC97_BC_SIM_STEREO) {
1567 		if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_STEREO_ENHANCEMENT], ac97))) < 0)
1568 			return err;
1569 	}
1570 
1571 	/* build 3D Stereo Enhancement control */
1572 	if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 13)) {
1573 		if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_3D], ac97))) < 0)
1574 			return err;
1575 	}
1576 
1577 	/* build Loudness control */
1578 	if (ac97->caps & AC97_BC_LOUDNESS) {
1579 		if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOUDNESS], ac97))) < 0)
1580 			return err;
1581 	}
1582 
1583 	/* build Mono output select control */
1584 	if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 9)) {
1585 		if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MONO], ac97))) < 0)
1586 			return err;
1587 	}
1588 
1589 	/* build Mic select control */
1590 	if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 8)) {
1591 		if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MIC], ac97))) < 0)
1592 			return err;
1593 	}
1594 
1595 	/* build ADC/DAC loopback control */
1596 	if (enable_loopback && snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 7)) {
1597 		if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOOPBACK], ac97))) < 0)
1598 			return err;
1599 	}
1600 
1601 	snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, ~AC97_GP_DRSS_MASK, 0x0000);
1602 
1603 	/* build 3D controls */
1604 	if (ac97->build_ops->build_3d) {
1605 		ac97->build_ops->build_3d(ac97);
1606 	} else {
1607 		if (snd_ac97_try_volume_mix(ac97, AC97_3D_CONTROL)) {
1608 			unsigned short val;
1609 			val = 0x0707;
1610 			snd_ac97_write(ac97, AC97_3D_CONTROL, val);
1611 			val = snd_ac97_read(ac97, AC97_3D_CONTROL);
1612 			val = val == 0x0606;
1613 			if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
1614 				return err;
1615 			if (val)
1616 				kctl->private_value = AC97_3D_CONTROL | (9 << 8) | (7 << 16);
1617 			if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[1], ac97))) < 0)
1618 				return err;
1619 			if (val)
1620 				kctl->private_value = AC97_3D_CONTROL | (1 << 8) | (7 << 16);
1621 			snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
1622 		}
1623 	}
1624 
1625 	/* build S/PDIF controls */
1626 
1627 	/* Hack for ASUS P5P800-VM, which does not indicate S/PDIF capability */
1628 	if (ac97->subsystem_vendor == 0x1043 &&
1629 	    ac97->subsystem_device == 0x810f)
1630 		ac97->ext_id |= AC97_EI_SPDIF;
1631 
1632 	if ((ac97->ext_id & AC97_EI_SPDIF) && !(ac97->scaps & AC97_SCAP_NO_SPDIF)) {
1633 		if (ac97->build_ops->build_spdif) {
1634 			if ((err = ac97->build_ops->build_spdif(ac97)) < 0)
1635 				return err;
1636 		} else {
1637 			for (idx = 0; idx < 5; idx++)
1638 				if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_spdif[idx], ac97))) < 0)
1639 					return err;
1640 			if (ac97->build_ops->build_post_spdif) {
1641 				if ((err = ac97->build_ops->build_post_spdif(ac97)) < 0)
1642 					return err;
1643 			}
1644 			/* set default PCM S/PDIF params */
1645 			/* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
1646 			snd_ac97_write_cache(ac97, AC97_SPDIF, 0x2a20);
1647 			ac97->rates[AC97_RATES_SPDIF] = snd_ac97_determine_spdif_rates(ac97);
1648 		}
1649 		ac97->spdif_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
1650 	}
1651 
1652 	/* build chip specific controls */
1653 	if (ac97->build_ops->build_specific)
1654 		if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1655 			return err;
1656 
1657 	if (snd_ac97_try_bit(ac97, AC97_POWERDOWN, 15)) {
1658 		kctl = snd_ac97_cnew(&snd_ac97_control_eapd, ac97);
1659 		if (! kctl)
1660 			return -ENOMEM;
1661 		if (ac97->scaps & AC97_SCAP_INV_EAPD)
1662 			set_inv_eapd(ac97, kctl);
1663 		if ((err = snd_ctl_add(card, kctl)) < 0)
1664 			return err;
1665 	}
1666 
1667 	return 0;
1668 }
1669 
snd_ac97_modem_build(struct snd_card * card,struct snd_ac97 * ac97)1670 static int snd_ac97_modem_build(struct snd_card *card, struct snd_ac97 * ac97)
1671 {
1672 	int err, idx;
1673 
1674 	/*
1675 	printk(KERN_DEBUG "AC97_GPIO_CFG = %x\n",
1676 	       snd_ac97_read(ac97,AC97_GPIO_CFG));
1677 	*/
1678 	snd_ac97_write(ac97, AC97_GPIO_CFG, 0xffff & ~(AC97_GPIO_LINE1_OH));
1679 	snd_ac97_write(ac97, AC97_GPIO_POLARITY, 0xffff & ~(AC97_GPIO_LINE1_OH));
1680 	snd_ac97_write(ac97, AC97_GPIO_STICKY, 0xffff);
1681 	snd_ac97_write(ac97, AC97_GPIO_WAKEUP, 0x0);
1682 	snd_ac97_write(ac97, AC97_MISC_AFE, 0x0);
1683 
1684 	/* build modem switches */
1685 	for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_modem_switches); idx++)
1686 		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ac97_controls_modem_switches[idx], ac97))) < 0)
1687 			return err;
1688 
1689 	/* build chip specific controls */
1690 	if (ac97->build_ops->build_specific)
1691 		if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1692 			return err;
1693 
1694 	return 0;
1695 }
1696 
snd_ac97_test_rate(struct snd_ac97 * ac97,int reg,int shadow_reg,int rate)1697 static int snd_ac97_test_rate(struct snd_ac97 *ac97, int reg, int shadow_reg, int rate)
1698 {
1699 	unsigned short val;
1700 	unsigned int tmp;
1701 
1702 	tmp = ((unsigned int)rate * ac97->bus->clock) / 48000;
1703 	snd_ac97_write_cache(ac97, reg, tmp & 0xffff);
1704 	if (shadow_reg)
1705 		snd_ac97_write_cache(ac97, shadow_reg, tmp & 0xffff);
1706 	val = snd_ac97_read(ac97, reg);
1707 	return val == (tmp & 0xffff);
1708 }
1709 
snd_ac97_determine_rates(struct snd_ac97 * ac97,int reg,int shadow_reg,unsigned int * r_result)1710 static void snd_ac97_determine_rates(struct snd_ac97 *ac97, int reg, int shadow_reg, unsigned int *r_result)
1711 {
1712 	unsigned int result = 0;
1713 	unsigned short saved;
1714 
1715 	if (ac97->bus->no_vra) {
1716 		*r_result = SNDRV_PCM_RATE_48000;
1717 		if ((ac97->flags & AC97_DOUBLE_RATE) &&
1718 		    reg == AC97_PCM_FRONT_DAC_RATE)
1719 			*r_result |= SNDRV_PCM_RATE_96000;
1720 		return;
1721 	}
1722 
1723 	saved = snd_ac97_read(ac97, reg);
1724 	if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE)
1725 		snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1726 				     AC97_EA_DRA, 0);
1727 	/* test a non-standard rate */
1728 	if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11000))
1729 		result |= SNDRV_PCM_RATE_CONTINUOUS;
1730 	/* let's try to obtain standard rates */
1731 	if (snd_ac97_test_rate(ac97, reg, shadow_reg, 8000))
1732 		result |= SNDRV_PCM_RATE_8000;
1733 	if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11025))
1734 		result |= SNDRV_PCM_RATE_11025;
1735 	if (snd_ac97_test_rate(ac97, reg, shadow_reg, 16000))
1736 		result |= SNDRV_PCM_RATE_16000;
1737 	if (snd_ac97_test_rate(ac97, reg, shadow_reg, 22050))
1738 		result |= SNDRV_PCM_RATE_22050;
1739 	if (snd_ac97_test_rate(ac97, reg, shadow_reg, 32000))
1740 		result |= SNDRV_PCM_RATE_32000;
1741 	if (snd_ac97_test_rate(ac97, reg, shadow_reg, 44100))
1742 		result |= SNDRV_PCM_RATE_44100;
1743 	if (snd_ac97_test_rate(ac97, reg, shadow_reg, 48000))
1744 		result |= SNDRV_PCM_RATE_48000;
1745 	if ((ac97->flags & AC97_DOUBLE_RATE) &&
1746 	    reg == AC97_PCM_FRONT_DAC_RATE) {
1747 		/* test standard double rates */
1748 		snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1749 				     AC97_EA_DRA, AC97_EA_DRA);
1750 		if (snd_ac97_test_rate(ac97, reg, shadow_reg, 64000 / 2))
1751 			result |= SNDRV_PCM_RATE_64000;
1752 		if (snd_ac97_test_rate(ac97, reg, shadow_reg, 88200 / 2))
1753 			result |= SNDRV_PCM_RATE_88200;
1754 		if (snd_ac97_test_rate(ac97, reg, shadow_reg, 96000 / 2))
1755 			result |= SNDRV_PCM_RATE_96000;
1756 		/* some codecs don't support variable double rates */
1757 		if (!snd_ac97_test_rate(ac97, reg, shadow_reg, 76100 / 2))
1758 			result &= ~SNDRV_PCM_RATE_CONTINUOUS;
1759 		snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1760 				     AC97_EA_DRA, 0);
1761 	}
1762 	/* restore the default value */
1763 	snd_ac97_write_cache(ac97, reg, saved);
1764 	if (shadow_reg)
1765 		snd_ac97_write_cache(ac97, shadow_reg, saved);
1766 	*r_result = result;
1767 }
1768 
1769 /* check AC97_SPDIF register to accept which sample rates */
snd_ac97_determine_spdif_rates(struct snd_ac97 * ac97)1770 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97)
1771 {
1772 	unsigned int result = 0;
1773 	int i;
1774 	static unsigned short ctl_bits[] = {
1775 		AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K
1776 	};
1777 	static unsigned int rate_bits[] = {
1778 		SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000
1779 	};
1780 
1781 	for (i = 0; i < (int)ARRAY_SIZE(ctl_bits); i++) {
1782 		snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, ctl_bits[i]);
1783 		if ((snd_ac97_read(ac97, AC97_SPDIF) & AC97_SC_SPSR_MASK) == ctl_bits[i])
1784 			result |= rate_bits[i];
1785 	}
1786 	return result;
1787 }
1788 
1789 /* look for the codec id table matching with the given id */
look_for_codec_id(const struct ac97_codec_id * table,unsigned int id)1790 static const struct ac97_codec_id *look_for_codec_id(const struct ac97_codec_id *table,
1791 						     unsigned int id)
1792 {
1793 	const struct ac97_codec_id *pid;
1794 
1795 	for (pid = table; pid->id; pid++)
1796 		if (pid->id == (id & pid->mask))
1797 			return pid;
1798 	return NULL;
1799 }
1800 
snd_ac97_get_name(struct snd_ac97 * ac97,unsigned int id,char * name,int modem)1801 void snd_ac97_get_name(struct snd_ac97 *ac97, unsigned int id, char *name, int modem)
1802 {
1803 	const struct ac97_codec_id *pid;
1804 
1805 	sprintf(name, "0x%x %c%c%c", id,
1806 		printable(id >> 24),
1807 		printable(id >> 16),
1808 		printable(id >> 8));
1809 	pid = look_for_codec_id(snd_ac97_codec_id_vendors, id);
1810 	if (! pid)
1811 		return;
1812 
1813 	strcpy(name, pid->name);
1814 	if (ac97 && pid->patch) {
1815 		if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1816 		    (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1817 			pid->patch(ac97);
1818 	}
1819 
1820 	pid = look_for_codec_id(snd_ac97_codec_ids, id);
1821 	if (pid) {
1822 		strcat(name, " ");
1823 		strcat(name, pid->name);
1824 		if (pid->mask != 0xffffffff)
1825 			sprintf(name + strlen(name), " rev %d", id & ~pid->mask);
1826 		if (ac97 && pid->patch) {
1827 			if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1828 			    (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1829 				pid->patch(ac97);
1830 		}
1831 	} else
1832 		sprintf(name + strlen(name), " id %x", id & 0xff);
1833 }
1834 
1835 /**
1836  * snd_ac97_get_short_name - retrieve codec name
1837  * @ac97: the codec instance
1838  *
1839  * Returns the short identifying name of the codec.
1840  */
snd_ac97_get_short_name(struct snd_ac97 * ac97)1841 const char *snd_ac97_get_short_name(struct snd_ac97 *ac97)
1842 {
1843 	const struct ac97_codec_id *pid;
1844 
1845 	for (pid = snd_ac97_codec_ids; pid->id; pid++)
1846 		if (pid->id == (ac97->id & pid->mask))
1847 			return pid->name;
1848 	return "unknown codec";
1849 }
1850 
1851 EXPORT_SYMBOL(snd_ac97_get_short_name);
1852 
1853 /* wait for a while until registers are accessible after RESET
1854  * return 0 if ok, negative not ready
1855  */
ac97_reset_wait(struct snd_ac97 * ac97,int timeout,int with_modem)1856 static int ac97_reset_wait(struct snd_ac97 *ac97, int timeout, int with_modem)
1857 {
1858 	unsigned long end_time;
1859 	unsigned short val;
1860 
1861 	end_time = jiffies + timeout;
1862 	do {
1863 
1864 		/* use preliminary reads to settle the communication */
1865 		snd_ac97_read(ac97, AC97_RESET);
1866 		snd_ac97_read(ac97, AC97_VENDOR_ID1);
1867 		snd_ac97_read(ac97, AC97_VENDOR_ID2);
1868 		/* modem? */
1869 		if (with_modem) {
1870 			val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1871 			if (val != 0xffff && (val & 1) != 0)
1872 				return 0;
1873 		}
1874 		if (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) {
1875 			/* probably only Xbox issue - all registers are read as zero */
1876 			val = snd_ac97_read(ac97, AC97_VENDOR_ID1);
1877 			if (val != 0 && val != 0xffff)
1878 				return 0;
1879 		} else {
1880 			/* because the PCM or MASTER volume registers can be modified,
1881 			 * the REC_GAIN register is used for tests
1882 			 */
1883 			/* test if we can write to the record gain volume register */
1884 			snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
1885 			if ((snd_ac97_read(ac97, AC97_REC_GAIN) & 0x7fff) == 0x0a05)
1886 				return 0;
1887 		}
1888 		schedule_timeout_uninterruptible(1);
1889 	} while (time_after_eq(end_time, jiffies));
1890 	return -ENODEV;
1891 }
1892 
1893 /**
1894  * snd_ac97_bus - create an AC97 bus component
1895  * @card: the card instance
1896  * @num: the bus number
1897  * @ops: the bus callbacks table
1898  * @private_data: private data pointer for the new instance
1899  * @rbus: the pointer to store the new AC97 bus instance.
1900  *
1901  * Creates an AC97 bus component.  An struct snd_ac97_bus instance is newly
1902  * allocated and initialized.
1903  *
1904  * The ops table must include valid callbacks (at least read and
1905  * write).  The other callbacks, wait and reset, are not mandatory.
1906  *
1907  * The clock is set to 48000.  If another clock is needed, set
1908  * (*rbus)->clock manually.
1909  *
1910  * The AC97 bus instance is registered as a low-level device, so you don't
1911  * have to release it manually.
1912  *
1913  * Returns zero if successful, or a negative error code on failure.
1914  */
snd_ac97_bus(struct snd_card * card,int num,struct snd_ac97_bus_ops * ops,void * private_data,struct snd_ac97_bus ** rbus)1915 int snd_ac97_bus(struct snd_card *card, int num, struct snd_ac97_bus_ops *ops,
1916 		 void *private_data, struct snd_ac97_bus **rbus)
1917 {
1918 	int err;
1919 	struct snd_ac97_bus *bus;
1920 	static struct snd_device_ops dev_ops = {
1921 		.dev_free =	snd_ac97_bus_dev_free,
1922 	};
1923 
1924 	if (snd_BUG_ON(!card))
1925 		return -EINVAL;
1926 	bus = kzalloc(sizeof(*bus), GFP_KERNEL);
1927 	if (bus == NULL)
1928 		return -ENOMEM;
1929 	bus->card = card;
1930 	bus->num = num;
1931 	bus->ops = ops;
1932 	bus->private_data = private_data;
1933 	bus->clock = 48000;
1934 	spin_lock_init(&bus->bus_lock);
1935 	snd_ac97_bus_proc_init(bus);
1936 	if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
1937 		snd_ac97_bus_free(bus);
1938 		return err;
1939 	}
1940 	if (rbus)
1941 		*rbus = bus;
1942 	return 0;
1943 }
1944 
1945 EXPORT_SYMBOL(snd_ac97_bus);
1946 
1947 /* stop no dev release warning */
ac97_device_release(struct device * dev)1948 static void ac97_device_release(struct device * dev)
1949 {
1950 }
1951 
1952 /* register ac97 codec to bus */
snd_ac97_dev_register(struct snd_device * device)1953 static int snd_ac97_dev_register(struct snd_device *device)
1954 {
1955 	struct snd_ac97 *ac97 = device->device_data;
1956 	int err;
1957 
1958 	ac97->dev.bus = &ac97_bus_type;
1959 	ac97->dev.parent = ac97->bus->card->dev;
1960 	ac97->dev.release = ac97_device_release;
1961 	dev_set_name(&ac97->dev, "%d-%d:%s",
1962 		     ac97->bus->card->number, ac97->num,
1963 		     snd_ac97_get_short_name(ac97));
1964 	if ((err = device_register(&ac97->dev)) < 0) {
1965 		snd_printk(KERN_ERR "Can't register ac97 bus\n");
1966 		ac97->dev.bus = NULL;
1967 		return err;
1968 	}
1969 	return 0;
1970 }
1971 
1972 /* disconnect ac97 codec */
snd_ac97_dev_disconnect(struct snd_device * device)1973 static int snd_ac97_dev_disconnect(struct snd_device *device)
1974 {
1975 	struct snd_ac97 *ac97 = device->device_data;
1976 	if (ac97->dev.bus)
1977 		device_unregister(&ac97->dev);
1978 	return 0;
1979 }
1980 
1981 /* build_ops to do nothing */
1982 static const struct snd_ac97_build_ops null_build_ops;
1983 
1984 #ifdef CONFIG_SND_AC97_POWER_SAVE
do_update_power(struct work_struct * work)1985 static void do_update_power(struct work_struct *work)
1986 {
1987 	update_power_regs(
1988 		container_of(work, struct snd_ac97, power_work.work));
1989 }
1990 #endif
1991 
1992 /**
1993  * snd_ac97_mixer - create an Codec97 component
1994  * @bus: the AC97 bus which codec is attached to
1995  * @template: the template of ac97, including index, callbacks and
1996  *         the private data.
1997  * @rac97: the pointer to store the new ac97 instance.
1998  *
1999  * Creates an Codec97 component.  An struct snd_ac97 instance is newly
2000  * allocated and initialized from the template.  The codec
2001  * is then initialized by the standard procedure.
2002  *
2003  * The template must include the codec number (num) and address (addr),
2004  * and the private data (private_data).
2005  *
2006  * The ac97 instance is registered as a low-level device, so you don't
2007  * have to release it manually.
2008  *
2009  * Returns zero if successful, or a negative error code on failure.
2010  */
snd_ac97_mixer(struct snd_ac97_bus * bus,struct snd_ac97_template * template,struct snd_ac97 ** rac97)2011 int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template, struct snd_ac97 **rac97)
2012 {
2013 	int err;
2014 	struct snd_ac97 *ac97;
2015 	struct snd_card *card;
2016 	char name[64];
2017 	unsigned long end_time;
2018 	unsigned int reg;
2019 	const struct ac97_codec_id *pid;
2020 	static struct snd_device_ops ops = {
2021 		.dev_free =	snd_ac97_dev_free,
2022 		.dev_register =	snd_ac97_dev_register,
2023 		.dev_disconnect =	snd_ac97_dev_disconnect,
2024 	};
2025 
2026 	if (rac97)
2027 		*rac97 = NULL;
2028 	if (snd_BUG_ON(!bus || !template))
2029 		return -EINVAL;
2030 	if (snd_BUG_ON(template->num >= 4))
2031 		return -EINVAL;
2032 	if (bus->codec[template->num])
2033 		return -EBUSY;
2034 
2035 	card = bus->card;
2036 	ac97 = kzalloc(sizeof(*ac97), GFP_KERNEL);
2037 	if (ac97 == NULL)
2038 		return -ENOMEM;
2039 	ac97->private_data = template->private_data;
2040 	ac97->private_free = template->private_free;
2041 	ac97->bus = bus;
2042 	ac97->pci = template->pci;
2043 	ac97->num = template->num;
2044 	ac97->addr = template->addr;
2045 	ac97->scaps = template->scaps;
2046 	ac97->res_table = template->res_table;
2047 	bus->codec[ac97->num] = ac97;
2048 	mutex_init(&ac97->reg_mutex);
2049 	mutex_init(&ac97->page_mutex);
2050 #ifdef CONFIG_SND_AC97_POWER_SAVE
2051 	INIT_DELAYED_WORK(&ac97->power_work, do_update_power);
2052 #endif
2053 
2054 #ifdef CONFIG_PCI
2055 	if (ac97->pci) {
2056 		pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_VENDOR_ID, &ac97->subsystem_vendor);
2057 		pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_ID, &ac97->subsystem_device);
2058 	}
2059 #endif
2060 	if (bus->ops->reset) {
2061 		bus->ops->reset(ac97);
2062 		goto __access_ok;
2063 	}
2064 
2065 	ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
2066 	ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
2067 	if (ac97->id && ac97->id != (unsigned int)-1) {
2068 		pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2069 		if (pid && (pid->flags & AC97_DEFAULT_POWER_OFF))
2070 			goto __access_ok;
2071 	}
2072 
2073 	/* reset to defaults */
2074 	if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2075 		snd_ac97_write(ac97, AC97_RESET, 0);
2076 	if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2077 		snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2078 	if (bus->ops->wait)
2079 		bus->ops->wait(ac97);
2080 	else {
2081 		udelay(50);
2082 		if (ac97->scaps & AC97_SCAP_SKIP_AUDIO)
2083 			err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 1);
2084 		else {
2085 			err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 0);
2086 			if (err < 0)
2087 				err = ac97_reset_wait(ac97,
2088 						      msecs_to_jiffies(500), 1);
2089 		}
2090 		if (err < 0) {
2091 			snd_printk(KERN_WARNING "AC'97 %d does not respond - RESET\n", ac97->num);
2092 			/* proceed anyway - it's often non-critical */
2093 		}
2094 	}
2095       __access_ok:
2096 	ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
2097 	ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
2098 	if (! (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) &&
2099 	    (ac97->id == 0x00000000 || ac97->id == 0xffffffff)) {
2100 		snd_printk(KERN_ERR "AC'97 %d access is not valid [0x%x], removing mixer.\n", ac97->num, ac97->id);
2101 		snd_ac97_free(ac97);
2102 		return -EIO;
2103 	}
2104 	pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2105 	if (pid)
2106 		ac97->flags |= pid->flags;
2107 
2108 	/* test for AC'97 */
2109 	if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO) && !(ac97->scaps & AC97_SCAP_AUDIO)) {
2110 		/* test if we can write to the record gain volume register */
2111 		snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a06);
2112 		if (((err = snd_ac97_read(ac97, AC97_REC_GAIN)) & 0x7fff) == 0x0a06)
2113 			ac97->scaps |= AC97_SCAP_AUDIO;
2114 	}
2115 	if (ac97->scaps & AC97_SCAP_AUDIO) {
2116 		ac97->caps = snd_ac97_read(ac97, AC97_RESET);
2117 		ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);
2118 		if (ac97->ext_id == 0xffff)	/* invalid combination */
2119 			ac97->ext_id = 0;
2120 	}
2121 
2122 	/* test for MC'97 */
2123 	if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM) && !(ac97->scaps & AC97_SCAP_MODEM)) {
2124 		ac97->ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2125 		if (ac97->ext_mid == 0xffff)	/* invalid combination */
2126 			ac97->ext_mid = 0;
2127 		if (ac97->ext_mid & 1)
2128 			ac97->scaps |= AC97_SCAP_MODEM;
2129 	}
2130 
2131 	if (!ac97_is_audio(ac97) && !ac97_is_modem(ac97)) {
2132 		if (!(ac97->scaps & (AC97_SCAP_SKIP_AUDIO|AC97_SCAP_SKIP_MODEM)))
2133 			snd_printk(KERN_ERR "AC'97 %d access error (not audio or modem codec)\n", ac97->num);
2134 		snd_ac97_free(ac97);
2135 		return -EACCES;
2136 	}
2137 
2138 	if (bus->ops->reset) // FIXME: always skipping?
2139 		goto __ready_ok;
2140 
2141 	/* FIXME: add powerdown control */
2142 	if (ac97_is_audio(ac97)) {
2143 		/* nothing should be in powerdown mode */
2144 		snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2145 		if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2146 			snd_ac97_write_cache(ac97, AC97_RESET, 0); /* reset to defaults */
2147 			udelay(100);
2148 			snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2149 		}
2150 		/* nothing should be in powerdown mode */
2151 		snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0);
2152 		end_time = jiffies + msecs_to_jiffies(5000);
2153 		do {
2154 			if ((snd_ac97_read(ac97, AC97_POWERDOWN) & 0x0f) == 0x0f)
2155 				goto __ready_ok;
2156 			schedule_timeout_uninterruptible(1);
2157 		} while (time_after_eq(end_time, jiffies));
2158 		snd_printk(KERN_WARNING "AC'97 %d analog subsections not ready\n", ac97->num);
2159 	}
2160 
2161 	/* FIXME: add powerdown control */
2162 	if (ac97_is_modem(ac97)) {
2163 		unsigned char tmp;
2164 
2165 		/* nothing should be in powerdown mode */
2166 		/* note: it's important to set the rate at first */
2167 		tmp = AC97_MEA_GPIO;
2168 		if (ac97->ext_mid & AC97_MEI_LINE1) {
2169 			snd_ac97_write_cache(ac97, AC97_LINE1_RATE, 8000);
2170 			tmp |= AC97_MEA_ADC1 | AC97_MEA_DAC1;
2171 		}
2172 		if (ac97->ext_mid & AC97_MEI_LINE2) {
2173 			snd_ac97_write_cache(ac97, AC97_LINE2_RATE, 8000);
2174 			tmp |= AC97_MEA_ADC2 | AC97_MEA_DAC2;
2175 		}
2176 		if (ac97->ext_mid & AC97_MEI_HANDSET) {
2177 			snd_ac97_write_cache(ac97, AC97_HANDSET_RATE, 8000);
2178 			tmp |= AC97_MEA_HADC | AC97_MEA_HDAC;
2179 		}
2180 		snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2181 		udelay(100);
2182 		/* nothing should be in powerdown mode */
2183 		snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2184 		end_time = jiffies + msecs_to_jiffies(100);
2185 		do {
2186 			if ((snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS) & tmp) == tmp)
2187 				goto __ready_ok;
2188 			schedule_timeout_uninterruptible(1);
2189 		} while (time_after_eq(end_time, jiffies));
2190 		snd_printk(KERN_WARNING "MC'97 %d converters and GPIO not ready (0x%x)\n", ac97->num, snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS));
2191 	}
2192 
2193       __ready_ok:
2194 	if (ac97_is_audio(ac97))
2195 		ac97->addr = (ac97->ext_id & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT;
2196 	else
2197 		ac97->addr = (ac97->ext_mid & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT;
2198 	if (ac97->ext_id & 0x01c9) {	/* L/R, MIC, SDAC, LDAC VRA support */
2199 		reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2200 		reg |= ac97->ext_id & 0x01c0; /* LDAC/SDAC/CDAC */
2201 		if (! bus->no_vra)
2202 			reg |= ac97->ext_id & 0x0009; /* VRA/VRM */
2203 		snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2204 	}
2205 	if ((ac97->ext_id & AC97_EI_DRA) && bus->dra) {
2206 		/* Intel controllers require double rate data to be put in
2207 		 * slots 7+8, so let's hope the codec supports it. */
2208 		snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, AC97_GP_DRSS_78);
2209 		if ((snd_ac97_read(ac97, AC97_GENERAL_PURPOSE) & AC97_GP_DRSS_MASK) == AC97_GP_DRSS_78)
2210 			ac97->flags |= AC97_DOUBLE_RATE;
2211 		/* restore to slots 10/11 to avoid the confliction with surrounds */
2212 		snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, 0);
2213 	}
2214 	if (ac97->ext_id & AC97_EI_VRA) {	/* VRA support */
2215 		snd_ac97_determine_rates(ac97, AC97_PCM_FRONT_DAC_RATE, 0, &ac97->rates[AC97_RATES_FRONT_DAC]);
2216 		snd_ac97_determine_rates(ac97, AC97_PCM_LR_ADC_RATE, 0, &ac97->rates[AC97_RATES_ADC]);
2217 	} else {
2218 		ac97->rates[AC97_RATES_FRONT_DAC] = SNDRV_PCM_RATE_48000;
2219 		if (ac97->flags & AC97_DOUBLE_RATE)
2220 			ac97->rates[AC97_RATES_FRONT_DAC] |= SNDRV_PCM_RATE_96000;
2221 		ac97->rates[AC97_RATES_ADC] = SNDRV_PCM_RATE_48000;
2222 	}
2223 	if (ac97->ext_id & AC97_EI_SPDIF) {
2224 		/* codec specific code (patch) should override these values */
2225 		ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_32000;
2226 	}
2227 	if (ac97->ext_id & AC97_EI_VRM) {	/* MIC VRA support */
2228 		snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]);
2229 	} else {
2230 		ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000;
2231 	}
2232 	if (ac97->ext_id & AC97_EI_SDAC) {	/* SDAC support */
2233 		snd_ac97_determine_rates(ac97, AC97_PCM_SURR_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_SURR_DAC]);
2234 		ac97->scaps |= AC97_SCAP_SURROUND_DAC;
2235 	}
2236 	if (ac97->ext_id & AC97_EI_LDAC) {	/* LDAC support */
2237 		snd_ac97_determine_rates(ac97, AC97_PCM_LFE_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_LFE_DAC]);
2238 		ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
2239 	}
2240 	/* additional initializations */
2241 	if (bus->ops->init)
2242 		bus->ops->init(ac97);
2243 	snd_ac97_get_name(ac97, ac97->id, name, !ac97_is_audio(ac97));
2244 	snd_ac97_get_name(NULL, ac97->id, name, !ac97_is_audio(ac97));  // ac97->id might be changed in the special setup code
2245 	if (! ac97->build_ops)
2246 		ac97->build_ops = &null_build_ops;
2247 
2248 	if (ac97_is_audio(ac97)) {
2249 		char comp[16];
2250 		if (card->mixername[0] == '\0') {
2251 			strcpy(card->mixername, name);
2252 		} else {
2253 			if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2254 				strcat(card->mixername, ",");
2255 				strcat(card->mixername, name);
2256 			}
2257 		}
2258 		sprintf(comp, "AC97a:%08x", ac97->id);
2259 		if ((err = snd_component_add(card, comp)) < 0) {
2260 			snd_ac97_free(ac97);
2261 			return err;
2262 		}
2263 		if (snd_ac97_mixer_build(ac97) < 0) {
2264 			snd_ac97_free(ac97);
2265 			return -ENOMEM;
2266 		}
2267 	}
2268 	if (ac97_is_modem(ac97)) {
2269 		char comp[16];
2270 		if (card->mixername[0] == '\0') {
2271 			strcpy(card->mixername, name);
2272 		} else {
2273 			if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2274 				strcat(card->mixername, ",");
2275 				strcat(card->mixername, name);
2276 			}
2277 		}
2278 		sprintf(comp, "AC97m:%08x", ac97->id);
2279 		if ((err = snd_component_add(card, comp)) < 0) {
2280 			snd_ac97_free(ac97);
2281 			return err;
2282 		}
2283 		if (snd_ac97_modem_build(card, ac97) < 0) {
2284 			snd_ac97_free(ac97);
2285 			return -ENOMEM;
2286 		}
2287 	}
2288 	if (ac97_is_audio(ac97))
2289 		update_power_regs(ac97);
2290 	snd_ac97_proc_init(ac97);
2291 	if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ac97, &ops)) < 0) {
2292 		snd_ac97_free(ac97);
2293 		return err;
2294 	}
2295 	*rac97 = ac97;
2296 	return 0;
2297 }
2298 
2299 EXPORT_SYMBOL(snd_ac97_mixer);
2300 
2301 /*
2302  * Power down the chip.
2303  *
2304  * MASTER and HEADPHONE registers are muted but the register cache values
2305  * are not changed, so that the values can be restored in snd_ac97_resume().
2306  */
snd_ac97_powerdown(struct snd_ac97 * ac97)2307 static void snd_ac97_powerdown(struct snd_ac97 *ac97)
2308 {
2309 	unsigned short power;
2310 
2311 	if (ac97_is_audio(ac97)) {
2312 		/* some codecs have stereo mute bits */
2313 		snd_ac97_write(ac97, AC97_MASTER, 0x9f9f);
2314 		snd_ac97_write(ac97, AC97_HEADPHONE, 0x9f9f);
2315 	}
2316 
2317 	/* surround, CLFE, mic powerdown */
2318 	power = ac97->regs[AC97_EXTENDED_STATUS];
2319 	if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2320 		power |= AC97_EA_PRJ;
2321 	if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2322 		power |= AC97_EA_PRI | AC97_EA_PRK;
2323 	power |= AC97_EA_PRL;
2324 	snd_ac97_write(ac97, AC97_EXTENDED_STATUS, power);
2325 
2326 	/* powerdown external amplifier */
2327 	if (ac97->scaps & AC97_SCAP_INV_EAPD)
2328 		power = ac97->regs[AC97_POWERDOWN] & ~AC97_PD_EAPD;
2329 	else if (! (ac97->scaps & AC97_SCAP_EAPD_LED))
2330 		power = ac97->regs[AC97_POWERDOWN] | AC97_PD_EAPD;
2331 	power |= AC97_PD_PR6;	/* Headphone amplifier powerdown */
2332 	power |= AC97_PD_PR0 | AC97_PD_PR1;	/* ADC & DAC powerdown */
2333 	snd_ac97_write(ac97, AC97_POWERDOWN, power);
2334 	udelay(100);
2335 	power |= AC97_PD_PR2;	/* Analog Mixer powerdown (Vref on) */
2336 	snd_ac97_write(ac97, AC97_POWERDOWN, power);
2337 	if (ac97_is_power_save_mode(ac97)) {
2338 		power |= AC97_PD_PR3;	/* Analog Mixer powerdown */
2339 		snd_ac97_write(ac97, AC97_POWERDOWN, power);
2340 		udelay(100);
2341 		/* AC-link powerdown, internal Clk disable */
2342 		/* FIXME: this may cause click noises on some boards */
2343 		power |= AC97_PD_PR4 | AC97_PD_PR5;
2344 		snd_ac97_write(ac97, AC97_POWERDOWN, power);
2345 	}
2346 }
2347 
2348 
2349 struct ac97_power_reg {
2350 	unsigned short reg;
2351 	unsigned short power_reg;
2352 	unsigned short mask;
2353 };
2354 
2355 enum { PWIDX_ADC, PWIDX_FRONT, PWIDX_CLFE, PWIDX_SURR, PWIDX_MIC, PWIDX_SIZE };
2356 
2357 static struct ac97_power_reg power_regs[PWIDX_SIZE] = {
2358 	[PWIDX_ADC] = { AC97_PCM_LR_ADC_RATE, AC97_POWERDOWN, AC97_PD_PR0},
2359 	[PWIDX_FRONT] = { AC97_PCM_FRONT_DAC_RATE, AC97_POWERDOWN, AC97_PD_PR1},
2360 	[PWIDX_CLFE] = { AC97_PCM_LFE_DAC_RATE, AC97_EXTENDED_STATUS,
2361 			 AC97_EA_PRI | AC97_EA_PRK},
2362 	[PWIDX_SURR] = { AC97_PCM_SURR_DAC_RATE, AC97_EXTENDED_STATUS,
2363 			 AC97_EA_PRJ},
2364 	[PWIDX_MIC] = { AC97_PCM_MIC_ADC_RATE, AC97_EXTENDED_STATUS,
2365 			AC97_EA_PRL},
2366 };
2367 
2368 #ifdef CONFIG_SND_AC97_POWER_SAVE
2369 /**
2370  * snd_ac97_update_power - update the powerdown register
2371  * @ac97: the codec instance
2372  * @reg: the rate register, e.g. AC97_PCM_FRONT_DAC_RATE
2373  * @powerup: non-zero when power up the part
2374  *
2375  * Update the AC97 powerdown register bits of the given part.
2376  */
snd_ac97_update_power(struct snd_ac97 * ac97,int reg,int powerup)2377 int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup)
2378 {
2379 	int i;
2380 
2381 	if (! ac97)
2382 		return 0;
2383 
2384 	if (reg) {
2385 		/* SPDIF requires DAC power, too */
2386 		if (reg == AC97_SPDIF)
2387 			reg = AC97_PCM_FRONT_DAC_RATE;
2388 		for (i = 0; i < PWIDX_SIZE; i++) {
2389 			if (power_regs[i].reg == reg) {
2390 				if (powerup)
2391 					ac97->power_up |= (1 << i);
2392 				else
2393 					ac97->power_up &= ~(1 << i);
2394 				break;
2395 			}
2396 		}
2397 	}
2398 
2399 	if (ac97_is_power_save_mode(ac97) && !powerup)
2400 		/* adjust power-down bits after two seconds delay
2401 		 * (for avoiding loud click noises for many (OSS) apps
2402 		 *  that open/close frequently)
2403 		 */
2404 		schedule_delayed_work(&ac97->power_work,
2405 				      msecs_to_jiffies(power_save * 1000));
2406 	else {
2407 		cancel_delayed_work(&ac97->power_work);
2408 		update_power_regs(ac97);
2409 	}
2410 
2411 	return 0;
2412 }
2413 
2414 EXPORT_SYMBOL(snd_ac97_update_power);
2415 #endif /* CONFIG_SND_AC97_POWER_SAVE */
2416 
update_power_regs(struct snd_ac97 * ac97)2417 static void update_power_regs(struct snd_ac97 *ac97)
2418 {
2419 	unsigned int power_up, bits;
2420 	int i;
2421 
2422 	power_up = (1 << PWIDX_FRONT) | (1 << PWIDX_ADC);
2423 	power_up |= (1 << PWIDX_MIC);
2424 	if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2425 		power_up |= (1 << PWIDX_SURR);
2426 	if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2427 		power_up |= (1 << PWIDX_CLFE);
2428 #ifdef CONFIG_SND_AC97_POWER_SAVE
2429 	if (ac97_is_power_save_mode(ac97))
2430 		power_up = ac97->power_up;
2431 #endif
2432 	if (power_up) {
2433 		if (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2) {
2434 			/* needs power-up analog mix and vref */
2435 			snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2436 					     AC97_PD_PR3, 0);
2437 			msleep(1);
2438 			snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2439 					     AC97_PD_PR2, 0);
2440 		}
2441 	}
2442 	for (i = 0; i < PWIDX_SIZE; i++) {
2443 		if (power_up & (1 << i))
2444 			bits = 0;
2445 		else
2446 			bits = power_regs[i].mask;
2447 		snd_ac97_update_bits(ac97, power_regs[i].power_reg,
2448 				     power_regs[i].mask, bits);
2449 	}
2450 	if (! power_up) {
2451 		if (! (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2)) {
2452 			/* power down analog mix and vref */
2453 			snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2454 					     AC97_PD_PR2, AC97_PD_PR2);
2455 			snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2456 					     AC97_PD_PR3, AC97_PD_PR3);
2457 		}
2458 	}
2459 }
2460 
2461 
2462 #ifdef CONFIG_PM
2463 /**
2464  * snd_ac97_suspend - General suspend function for AC97 codec
2465  * @ac97: the ac97 instance
2466  *
2467  * Suspends the codec, power down the chip.
2468  */
snd_ac97_suspend(struct snd_ac97 * ac97)2469 void snd_ac97_suspend(struct snd_ac97 *ac97)
2470 {
2471 	if (! ac97)
2472 		return;
2473 	if (ac97->build_ops->suspend)
2474 		ac97->build_ops->suspend(ac97);
2475 #ifdef CONFIG_SND_AC97_POWER_SAVE
2476 	cancel_delayed_work_sync(&ac97->power_work);
2477 #endif
2478 	snd_ac97_powerdown(ac97);
2479 }
2480 
2481 EXPORT_SYMBOL(snd_ac97_suspend);
2482 
2483 /*
2484  * restore ac97 status
2485  */
snd_ac97_restore_status(struct snd_ac97 * ac97)2486 static void snd_ac97_restore_status(struct snd_ac97 *ac97)
2487 {
2488 	int i;
2489 
2490 	for (i = 2; i < 0x7c ; i += 2) {
2491 		if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
2492 			continue;
2493 		/* restore only accessible registers
2494 		 * some chip (e.g. nm256) may hang up when unsupported registers
2495 		 * are accessed..!
2496 		 */
2497 		if (test_bit(i, ac97->reg_accessed)) {
2498 			snd_ac97_write(ac97, i, ac97->regs[i]);
2499 			snd_ac97_read(ac97, i);
2500 		}
2501 	}
2502 }
2503 
2504 /*
2505  * restore IEC958 status
2506  */
snd_ac97_restore_iec958(struct snd_ac97 * ac97)2507 static void snd_ac97_restore_iec958(struct snd_ac97 *ac97)
2508 {
2509 	if (ac97->ext_id & AC97_EI_SPDIF) {
2510 		if (ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_SPDIF) {
2511 			/* reset spdif status */
2512 			snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
2513 			snd_ac97_write(ac97, AC97_EXTENDED_STATUS, ac97->regs[AC97_EXTENDED_STATUS]);
2514 			if (ac97->flags & AC97_CS_SPDIF)
2515 				snd_ac97_write(ac97, AC97_CSR_SPDIF, ac97->regs[AC97_CSR_SPDIF]);
2516 			else
2517 				snd_ac97_write(ac97, AC97_SPDIF, ac97->regs[AC97_SPDIF]);
2518 			snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
2519 		}
2520 	}
2521 }
2522 
2523 /**
2524  * snd_ac97_resume - General resume function for AC97 codec
2525  * @ac97: the ac97 instance
2526  *
2527  * Do the standard resume procedure, power up and restoring the
2528  * old register values.
2529  */
snd_ac97_resume(struct snd_ac97 * ac97)2530 void snd_ac97_resume(struct snd_ac97 *ac97)
2531 {
2532 	unsigned long end_time;
2533 
2534 	if (! ac97)
2535 		return;
2536 
2537 	if (ac97->bus->ops->reset) {
2538 		ac97->bus->ops->reset(ac97);
2539 		goto  __reset_ready;
2540 	}
2541 
2542 	snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2543 	if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2544 		if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2545 			snd_ac97_write(ac97, AC97_RESET, 0);
2546 		else if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2547 			snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2548 		udelay(100);
2549 		snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2550 	}
2551 	snd_ac97_write(ac97, AC97_GENERAL_PURPOSE, 0);
2552 
2553 	snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]);
2554 	if (ac97_is_audio(ac97)) {
2555 		ac97->bus->ops->write(ac97, AC97_MASTER, 0x8101);
2556 		end_time = jiffies + msecs_to_jiffies(100);
2557 		do {
2558 			if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101)
2559 				break;
2560 			schedule_timeout_uninterruptible(1);
2561 		} while (time_after_eq(end_time, jiffies));
2562 		/* FIXME: extra delay */
2563 		ac97->bus->ops->write(ac97, AC97_MASTER, AC97_MUTE_MASK_MONO);
2564 		if (snd_ac97_read(ac97, AC97_MASTER) != AC97_MUTE_MASK_MONO)
2565 			msleep(250);
2566 	} else {
2567 		end_time = jiffies + msecs_to_jiffies(100);
2568 		do {
2569 			unsigned short val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2570 			if (val != 0xffff && (val & 1) != 0)
2571 				break;
2572 			schedule_timeout_uninterruptible(1);
2573 		} while (time_after_eq(end_time, jiffies));
2574 	}
2575 __reset_ready:
2576 
2577 	if (ac97->bus->ops->init)
2578 		ac97->bus->ops->init(ac97);
2579 
2580 	if (ac97->build_ops->resume)
2581 		ac97->build_ops->resume(ac97);
2582 	else {
2583 		snd_ac97_restore_status(ac97);
2584 		snd_ac97_restore_iec958(ac97);
2585 	}
2586 }
2587 
2588 EXPORT_SYMBOL(snd_ac97_resume);
2589 #endif
2590 
2591 
2592 /*
2593  * Hardware tuning
2594  */
set_ctl_name(char * dst,const char * src,const char * suffix)2595 static void set_ctl_name(char *dst, const char *src, const char *suffix)
2596 {
2597 	if (suffix)
2598 		sprintf(dst, "%s %s", src, suffix);
2599 	else
2600 		strcpy(dst, src);
2601 }
2602 
2603 /* remove the control with the given name and optional suffix */
snd_ac97_remove_ctl(struct snd_ac97 * ac97,const char * name,const char * suffix)2604 static int snd_ac97_remove_ctl(struct snd_ac97 *ac97, const char *name,
2605 			       const char *suffix)
2606 {
2607 	struct snd_ctl_elem_id id;
2608 	memset(&id, 0, sizeof(id));
2609 	set_ctl_name(id.name, name, suffix);
2610 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2611 	return snd_ctl_remove_id(ac97->bus->card, &id);
2612 }
2613 
ctl_find(struct snd_ac97 * ac97,const char * name,const char * suffix)2614 static struct snd_kcontrol *ctl_find(struct snd_ac97 *ac97, const char *name, const char *suffix)
2615 {
2616 	struct snd_ctl_elem_id sid;
2617 	memset(&sid, 0, sizeof(sid));
2618 	set_ctl_name(sid.name, name, suffix);
2619 	sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2620 	return snd_ctl_find_id(ac97->bus->card, &sid);
2621 }
2622 
2623 /* rename the control with the given name and optional suffix */
snd_ac97_rename_ctl(struct snd_ac97 * ac97,const char * src,const char * dst,const char * suffix)2624 static int snd_ac97_rename_ctl(struct snd_ac97 *ac97, const char *src,
2625 			       const char *dst, const char *suffix)
2626 {
2627 	struct snd_kcontrol *kctl = ctl_find(ac97, src, suffix);
2628 	if (kctl) {
2629 		set_ctl_name(kctl->id.name, dst, suffix);
2630 		return 0;
2631 	}
2632 	return -ENOENT;
2633 }
2634 
2635 /* rename both Volume and Switch controls - don't check the return value */
snd_ac97_rename_vol_ctl(struct snd_ac97 * ac97,const char * src,const char * dst)2636 static void snd_ac97_rename_vol_ctl(struct snd_ac97 *ac97, const char *src,
2637 				    const char *dst)
2638 {
2639 	snd_ac97_rename_ctl(ac97, src, dst, "Switch");
2640 	snd_ac97_rename_ctl(ac97, src, dst, "Volume");
2641 }
2642 
2643 /* swap controls */
snd_ac97_swap_ctl(struct snd_ac97 * ac97,const char * s1,const char * s2,const char * suffix)2644 static int snd_ac97_swap_ctl(struct snd_ac97 *ac97, const char *s1,
2645 			     const char *s2, const char *suffix)
2646 {
2647 	struct snd_kcontrol *kctl1, *kctl2;
2648 	kctl1 = ctl_find(ac97, s1, suffix);
2649 	kctl2 = ctl_find(ac97, s2, suffix);
2650 	if (kctl1 && kctl2) {
2651 		set_ctl_name(kctl1->id.name, s2, suffix);
2652 		set_ctl_name(kctl2->id.name, s1, suffix);
2653 		return 0;
2654 	}
2655 	return -ENOENT;
2656 }
2657 
2658 #if 1
2659 /* bind hp and master controls instead of using only hp control */
bind_hp_volsw_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2660 static int bind_hp_volsw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2661 {
2662 	int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2663 	if (err > 0) {
2664 		unsigned long priv_saved = kcontrol->private_value;
2665 		kcontrol->private_value = (kcontrol->private_value & ~0xff) | AC97_HEADPHONE;
2666 		snd_ac97_put_volsw(kcontrol, ucontrol);
2667 		kcontrol->private_value = priv_saved;
2668 	}
2669 	return err;
2670 }
2671 
2672 /* ac97 tune: bind Master and Headphone controls */
tune_hp_only(struct snd_ac97 * ac97)2673 static int tune_hp_only(struct snd_ac97 *ac97)
2674 {
2675 	struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2676 	struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2677 	if (! msw || ! mvol)
2678 		return -ENOENT;
2679 	msw->put = bind_hp_volsw_put;
2680 	mvol->put = bind_hp_volsw_put;
2681 	snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2682 	snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2683 	return 0;
2684 }
2685 
2686 #else
2687 /* ac97 tune: use Headphone control as master */
tune_hp_only(struct snd_ac97 * ac97)2688 static int tune_hp_only(struct snd_ac97 *ac97)
2689 {
2690 	if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2691 		return -ENOENT;
2692 	snd_ac97_remove_ctl(ac97, "Master Playback", "Switch");
2693 	snd_ac97_remove_ctl(ac97, "Master Playback", "Volume");
2694 	snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2695 	return 0;
2696 }
2697 #endif
2698 
2699 /* ac97 tune: swap Headphone and Master controls */
tune_swap_hp(struct snd_ac97 * ac97)2700 static int tune_swap_hp(struct snd_ac97 *ac97)
2701 {
2702 	if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2703 		return -ENOENT;
2704 	snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Line-Out Playback");
2705 	snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2706 	return 0;
2707 }
2708 
2709 /* ac97 tune: swap Surround and Master controls */
tune_swap_surround(struct snd_ac97 * ac97)2710 static int tune_swap_surround(struct snd_ac97 *ac97)
2711 {
2712 	if (snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Switch") ||
2713 	    snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Volume"))
2714 		return -ENOENT;
2715 	return 0;
2716 }
2717 
2718 /* ac97 tune: set up mic sharing for AD codecs */
tune_ad_sharing(struct snd_ac97 * ac97)2719 static int tune_ad_sharing(struct snd_ac97 *ac97)
2720 {
2721 	unsigned short scfg;
2722 	if ((ac97->id & 0xffffff00) != 0x41445300) {
2723 		snd_printk(KERN_ERR "ac97_quirk AD_SHARING is only for AD codecs\n");
2724 		return -EINVAL;
2725 	}
2726 	/* Turn on OMS bit to route microphone to back panel */
2727 	scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
2728 	snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x0200);
2729 	return 0;
2730 }
2731 
2732 static const struct snd_kcontrol_new snd_ac97_alc_jack_detect =
2733 AC97_SINGLE("Jack Detect", AC97_ALC650_CLOCK, 5, 1, 0);
2734 
2735 /* ac97 tune: set up ALC jack-select */
tune_alc_jack(struct snd_ac97 * ac97)2736 static int tune_alc_jack(struct snd_ac97 *ac97)
2737 {
2738 	if ((ac97->id & 0xffffff00) != 0x414c4700) {
2739 		snd_printk(KERN_ERR "ac97_quirk ALC_JACK is only for Realtek codecs\n");
2740 		return -EINVAL;
2741 	}
2742 	snd_ac97_update_bits(ac97, 0x7a, 0x20, 0x20); /* select jack detect function */
2743 	snd_ac97_update_bits(ac97, 0x7a, 0x01, 0x01); /* Line-out auto mute */
2744 	if (ac97->id == AC97_ID_ALC658D)
2745 		snd_ac97_update_bits(ac97, 0x74, 0x0800, 0x0800);
2746 	return snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_alc_jack_detect, ac97));
2747 }
2748 
2749 /* ac97 tune: inversed EAPD bit */
tune_inv_eapd(struct snd_ac97 * ac97)2750 static int tune_inv_eapd(struct snd_ac97 *ac97)
2751 {
2752 	struct snd_kcontrol *kctl = ctl_find(ac97, "External Amplifier", NULL);
2753 	if (! kctl)
2754 		return -ENOENT;
2755 	set_inv_eapd(ac97, kctl);
2756 	return 0;
2757 }
2758 
master_mute_sw_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2759 static int master_mute_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2760 {
2761 	int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2762 	if (err > 0) {
2763 		struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2764 		int shift = (kcontrol->private_value >> 8) & 0x0f;
2765 		int rshift = (kcontrol->private_value >> 12) & 0x0f;
2766 		unsigned short mask;
2767 		if (shift != rshift)
2768 			mask = AC97_MUTE_MASK_STEREO;
2769 		else
2770 			mask = AC97_MUTE_MASK_MONO;
2771 		snd_ac97_update_bits(ac97, AC97_POWERDOWN, AC97_PD_EAPD,
2772 				     (ac97->regs[AC97_MASTER] & mask) == mask ?
2773 				     AC97_PD_EAPD : 0);
2774 	}
2775 	return err;
2776 }
2777 
2778 /* ac97 tune: EAPD controls mute LED bound with the master mute */
tune_mute_led(struct snd_ac97 * ac97)2779 static int tune_mute_led(struct snd_ac97 *ac97)
2780 {
2781 	struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2782 	if (! msw)
2783 		return -ENOENT;
2784 	msw->put = master_mute_sw_put;
2785 	snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2786 	snd_ac97_update_bits(
2787 		ac97, AC97_POWERDOWN,
2788 		AC97_PD_EAPD, AC97_PD_EAPD /* mute LED on */
2789 	);
2790 	ac97->scaps |= AC97_SCAP_EAPD_LED;
2791 	return 0;
2792 }
2793 
hp_master_mute_sw_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)2794 static int hp_master_mute_sw_put(struct snd_kcontrol *kcontrol,
2795 				 struct snd_ctl_elem_value *ucontrol)
2796 {
2797 	int err = bind_hp_volsw_put(kcontrol, ucontrol);
2798 	if (err > 0) {
2799 		struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2800 		int shift = (kcontrol->private_value >> 8) & 0x0f;
2801 		int rshift = (kcontrol->private_value >> 12) & 0x0f;
2802 		unsigned short mask;
2803 		if (shift != rshift)
2804 			mask = AC97_MUTE_MASK_STEREO;
2805 		else
2806 			mask = AC97_MUTE_MASK_MONO;
2807 		snd_ac97_update_bits(ac97, AC97_POWERDOWN, AC97_PD_EAPD,
2808 				     (ac97->regs[AC97_MASTER] & mask) == mask ?
2809 				     AC97_PD_EAPD : 0);
2810 	}
2811 	return err;
2812 }
2813 
tune_hp_mute_led(struct snd_ac97 * ac97)2814 static int tune_hp_mute_led(struct snd_ac97 *ac97)
2815 {
2816 	struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2817 	struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2818 	if (! msw || ! mvol)
2819 		return -ENOENT;
2820 	msw->put = hp_master_mute_sw_put;
2821 	mvol->put = bind_hp_volsw_put;
2822 	snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2823 	snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2824 	snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2825 	snd_ac97_update_bits(
2826 		ac97, AC97_POWERDOWN,
2827 		AC97_PD_EAPD, AC97_PD_EAPD /* mute LED on */
2828 	);
2829 	return 0;
2830 }
2831 
2832 struct quirk_table {
2833 	const char *name;
2834 	int (*func)(struct snd_ac97 *);
2835 };
2836 
2837 static struct quirk_table applicable_quirks[] = {
2838 	{ "none", NULL },
2839 	{ "hp_only", tune_hp_only },
2840 	{ "swap_hp", tune_swap_hp },
2841 	{ "swap_surround", tune_swap_surround },
2842 	{ "ad_sharing", tune_ad_sharing },
2843 	{ "alc_jack", tune_alc_jack },
2844 	{ "inv_eapd", tune_inv_eapd },
2845 	{ "mute_led", tune_mute_led },
2846 	{ "hp_mute_led", tune_hp_mute_led },
2847 };
2848 
2849 /* apply the quirk with the given type */
apply_quirk(struct snd_ac97 * ac97,int type)2850 static int apply_quirk(struct snd_ac97 *ac97, int type)
2851 {
2852 	if (type <= 0)
2853 		return 0;
2854 	else if (type >= ARRAY_SIZE(applicable_quirks))
2855 		return -EINVAL;
2856 	if (applicable_quirks[type].func)
2857 		return applicable_quirks[type].func(ac97);
2858 	return 0;
2859 }
2860 
2861 /* apply the quirk with the given name */
apply_quirk_str(struct snd_ac97 * ac97,const char * typestr)2862 static int apply_quirk_str(struct snd_ac97 *ac97, const char *typestr)
2863 {
2864 	int i;
2865 	struct quirk_table *q;
2866 
2867 	for (i = 0; i < ARRAY_SIZE(applicable_quirks); i++) {
2868 		q = &applicable_quirks[i];
2869 		if (q->name && ! strcmp(typestr, q->name))
2870 			return apply_quirk(ac97, i);
2871 	}
2872 	/* for compatibility, accept the numbers, too */
2873 	if (*typestr >= '0' && *typestr <= '9')
2874 		return apply_quirk(ac97, (int)simple_strtoul(typestr, NULL, 10));
2875 	return -EINVAL;
2876 }
2877 
2878 /**
2879  * snd_ac97_tune_hardware - tune up the hardware
2880  * @ac97: the ac97 instance
2881  * @quirk: quirk list
2882  * @override: explicit quirk value (overrides the list if non-NULL)
2883  *
2884  * Do some workaround for each pci device, such as renaming of the
2885  * headphone (true line-out) control as "Master".
2886  * The quirk-list must be terminated with a zero-filled entry.
2887  *
2888  * Returns zero if successful, or a negative error code on failure.
2889  */
2890 
snd_ac97_tune_hardware(struct snd_ac97 * ac97,struct ac97_quirk * quirk,const char * override)2891 int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override)
2892 {
2893 	int result;
2894 
2895 	/* quirk overriden? */
2896 	if (override && strcmp(override, "-1") && strcmp(override, "default")) {
2897 		result = apply_quirk_str(ac97, override);
2898 		if (result < 0)
2899 			snd_printk(KERN_ERR "applying quirk type %s failed (%d)\n", override, result);
2900 		return result;
2901 	}
2902 
2903 	if (! quirk)
2904 		return -EINVAL;
2905 
2906 	for (; quirk->subvendor; quirk++) {
2907 		if (quirk->subvendor != ac97->subsystem_vendor)
2908 			continue;
2909 		if ((! quirk->mask && quirk->subdevice == ac97->subsystem_device) ||
2910 		    quirk->subdevice == (quirk->mask & ac97->subsystem_device)) {
2911 			if (quirk->codec_id && quirk->codec_id != ac97->id)
2912 				continue;
2913 			snd_printdd("ac97 quirk for %s (%04x:%04x)\n", quirk->name, ac97->subsystem_vendor, ac97->subsystem_device);
2914 			result = apply_quirk(ac97, quirk->type);
2915 			if (result < 0)
2916 				snd_printk(KERN_ERR "applying quirk type %d for %s failed (%d)\n", quirk->type, quirk->name, result);
2917 			return result;
2918 		}
2919 	}
2920 	return 0;
2921 }
2922 
2923 EXPORT_SYMBOL(snd_ac97_tune_hardware);
2924 
2925 /*
2926  *  INIT part
2927  */
2928 
alsa_ac97_init(void)2929 static int __init alsa_ac97_init(void)
2930 {
2931 	return 0;
2932 }
2933 
alsa_ac97_exit(void)2934 static void __exit alsa_ac97_exit(void)
2935 {
2936 }
2937 
2938 module_init(alsa_ac97_init)
2939 module_exit(alsa_ac97_exit)
2940