Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * ac97_codec.c: Generic AC97 mixer/modem module | |
3 | * | |
4 | * Derived from ac97 mixer in maestro and trident driver. | |
5 | * | |
6 | * Copyright 2000 Silicon Integrated System Corporation | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | * | |
22 | ************************************************************************** | |
23 | * | |
24 | * The Intel Audio Codec '97 specification is available at the Intel | |
25 | * audio homepage: http://developer.intel.com/ial/scalableplatforms/audio/ | |
26 | * | |
27 | * The specification itself is currently available at: | |
28 | * ftp://download.intel.com/ial/scalableplatforms/ac97r22.pdf | |
29 | * | |
30 | ************************************************************************** | |
31 | * | |
32 | * History | |
33 | * May 02, 2003 Liam Girdwood <liam.girdwood@wolfsonmicro.com> | |
34 | * Removed non existant WM9700 | |
35 | * Added support for WM9705, WM9708, WM9709, WM9710, WM9711 | |
36 | * WM9712 and WM9717 | |
37 | * Mar 28, 2002 Randolph Bentson <bentson@holmsjoen.com> | |
38 | * corrections to support WM9707 in ViewPad 1000 | |
39 | * v0.4 Mar 15 2000 Ollie Lho | |
40 | * dual codecs support verified with 4 channels output | |
41 | * v0.3 Feb 22 2000 Ollie Lho | |
42 | * bug fix for record mask setting | |
43 | * v0.2 Feb 10 2000 Ollie Lho | |
44 | * add ac97_read_proc for /proc/driver/{vendor}/ac97 | |
45 | * v0.1 Jan 14 2000 Ollie Lho <ollie@sis.com.tw> | |
46 | * Isolated from trident.c to support multiple ac97 codec | |
47 | */ | |
48 | #include <linux/module.h> | |
49 | #include <linux/kernel.h> | |
50 | #include <linux/slab.h> | |
51 | #include <linux/string.h> | |
52 | #include <linux/errno.h> | |
53 | #include <linux/bitops.h> | |
54 | #include <linux/delay.h> | |
55 | #include <linux/pci.h> | |
56 | #include <linux/ac97_codec.h> | |
57 | #include <asm/uaccess.h> | |
f82945df | 58 | #include <linux/mutex.h> |
1da177e4 LT |
59 | |
60 | #define CODEC_ID_BUFSZ 14 | |
61 | ||
62 | static int ac97_read_mixer(struct ac97_codec *codec, int oss_channel); | |
63 | static void ac97_write_mixer(struct ac97_codec *codec, int oss_channel, | |
64 | unsigned int left, unsigned int right); | |
65 | static void ac97_set_mixer(struct ac97_codec *codec, unsigned int oss_mixer, unsigned int val ); | |
66 | static int ac97_recmask_io(struct ac97_codec *codec, int rw, int mask); | |
67 | static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg); | |
68 | ||
69 | static int ac97_init_mixer(struct ac97_codec *codec); | |
70 | ||
71 | static int wolfson_init03(struct ac97_codec * codec); | |
72 | static int wolfson_init04(struct ac97_codec * codec); | |
73 | static int wolfson_init05(struct ac97_codec * codec); | |
74 | static int wolfson_init11(struct ac97_codec * codec); | |
75 | static int wolfson_init13(struct ac97_codec * codec); | |
76 | static int tritech_init(struct ac97_codec * codec); | |
77 | static int tritech_maestro_init(struct ac97_codec * codec); | |
78 | static int sigmatel_9708_init(struct ac97_codec *codec); | |
79 | static int sigmatel_9721_init(struct ac97_codec *codec); | |
80 | static int sigmatel_9744_init(struct ac97_codec *codec); | |
81 | static int ad1886_init(struct ac97_codec *codec); | |
82 | static int eapd_control(struct ac97_codec *codec, int); | |
83 | static int crystal_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); | |
84 | static int cmedia_init(struct ac97_codec * codec); | |
85 | static int cmedia_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); | |
86 | static int generic_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); | |
87 | ||
88 | ||
89 | /* | |
90 | * AC97 operations. | |
91 | * | |
92 | * If you are adding a codec then you should be able to use | |
93 | * eapd_ops - any codec that supports EAPD amp control (most) | |
94 | * null_ops - any ancient codec that supports nothing | |
95 | * | |
96 | * The three functions are | |
97 | * init - used for non AC97 standard initialisation | |
98 | * amplifier - used to do amplifier control (1=on 0=off) | |
99 | * digital - switch to digital modes (0 = analog) | |
100 | * | |
101 | * Not all codecs support all features, not all drivers use all the | |
102 | * operations yet | |
103 | */ | |
104 | ||
105 | static struct ac97_ops null_ops = { NULL, NULL, NULL }; | |
106 | static struct ac97_ops default_ops = { NULL, eapd_control, NULL }; | |
107 | static struct ac97_ops default_digital_ops = { NULL, eapd_control, generic_digital_control}; | |
108 | static struct ac97_ops wolfson_ops03 = { wolfson_init03, NULL, NULL }; | |
109 | static struct ac97_ops wolfson_ops04 = { wolfson_init04, NULL, NULL }; | |
110 | static struct ac97_ops wolfson_ops05 = { wolfson_init05, NULL, NULL }; | |
111 | static struct ac97_ops wolfson_ops11 = { wolfson_init11, NULL, NULL }; | |
112 | static struct ac97_ops wolfson_ops13 = { wolfson_init13, NULL, NULL }; | |
113 | static struct ac97_ops tritech_ops = { tritech_init, NULL, NULL }; | |
114 | static struct ac97_ops tritech_m_ops = { tritech_maestro_init, NULL, NULL }; | |
115 | static struct ac97_ops sigmatel_9708_ops = { sigmatel_9708_init, NULL, NULL }; | |
116 | static struct ac97_ops sigmatel_9721_ops = { sigmatel_9721_init, NULL, NULL }; | |
117 | static struct ac97_ops sigmatel_9744_ops = { sigmatel_9744_init, NULL, NULL }; | |
118 | static struct ac97_ops crystal_digital_ops = { NULL, eapd_control, crystal_digital_control }; | |
119 | static struct ac97_ops ad1886_ops = { ad1886_init, eapd_control, NULL }; | |
120 | static struct ac97_ops cmedia_ops = { NULL, eapd_control, NULL}; | |
121 | static struct ac97_ops cmedia_digital_ops = { cmedia_init, eapd_control, cmedia_digital_control}; | |
122 | ||
123 | /* sorted by vendor/device id */ | |
124 | static const struct { | |
125 | u32 id; | |
126 | char *name; | |
127 | struct ac97_ops *ops; | |
128 | int flags; | |
129 | } ac97_codec_ids[] = { | |
130 | {0x41445303, "Analog Devices AD1819", &null_ops}, | |
131 | {0x41445340, "Analog Devices AD1881", &null_ops}, | |
132 | {0x41445348, "Analog Devices AD1881A", &null_ops}, | |
133 | {0x41445360, "Analog Devices AD1885", &default_ops}, | |
134 | {0x41445361, "Analog Devices AD1886", &ad1886_ops}, | |
135 | {0x41445370, "Analog Devices AD1981", &null_ops}, | |
136 | {0x41445372, "Analog Devices AD1981A", &null_ops}, | |
137 | {0x41445374, "Analog Devices AD1981B", &null_ops}, | |
138 | {0x41445460, "Analog Devices AD1885", &default_ops}, | |
139 | {0x41445461, "Analog Devices AD1886", &ad1886_ops}, | |
140 | {0x414B4D00, "Asahi Kasei AK4540", &null_ops}, | |
141 | {0x414B4D01, "Asahi Kasei AK4542", &null_ops}, | |
142 | {0x414B4D02, "Asahi Kasei AK4543", &null_ops}, | |
143 | {0x414C4326, "ALC100P", &null_ops}, | |
144 | {0x414C4710, "ALC200/200P", &null_ops}, | |
145 | {0x414C4720, "ALC650", &default_digital_ops}, | |
146 | {0x434D4941, "CMedia", &cmedia_ops, AC97_NO_PCM_VOLUME }, | |
147 | {0x434D4942, "CMedia", &cmedia_ops, AC97_NO_PCM_VOLUME }, | |
148 | {0x434D4961, "CMedia", &cmedia_digital_ops, AC97_NO_PCM_VOLUME }, | |
149 | {0x43525900, "Cirrus Logic CS4297", &default_ops}, | |
150 | {0x43525903, "Cirrus Logic CS4297", &default_ops}, | |
151 | {0x43525913, "Cirrus Logic CS4297A rev A", &default_ops}, | |
152 | {0x43525914, "Cirrus Logic CS4297A rev B", &default_ops}, | |
153 | {0x43525923, "Cirrus Logic CS4298", &null_ops}, | |
154 | {0x4352592B, "Cirrus Logic CS4294", &null_ops}, | |
155 | {0x4352592D, "Cirrus Logic CS4294", &null_ops}, | |
156 | {0x43525931, "Cirrus Logic CS4299 rev A", &crystal_digital_ops}, | |
157 | {0x43525933, "Cirrus Logic CS4299 rev C", &crystal_digital_ops}, | |
158 | {0x43525934, "Cirrus Logic CS4299 rev D", &crystal_digital_ops}, | |
becf3aec | 159 | {0x43585430, "CXT48", &default_ops, AC97_DELUDED_MODEM }, |
1da177e4 LT |
160 | {0x43585442, "CXT66", &default_ops, AC97_DELUDED_MODEM }, |
161 | {0x44543031, "Diamond Technology DT0893", &default_ops}, | |
162 | {0x45838308, "ESS Allegro ES1988", &null_ops}, | |
163 | {0x49434511, "ICE1232", &null_ops}, /* I hope --jk */ | |
164 | {0x4e534331, "National Semiconductor LM4549", &null_ops}, | |
165 | {0x53494c22, "Silicon Laboratory Si3036", &null_ops}, | |
166 | {0x53494c23, "Silicon Laboratory Si3038", &null_ops}, | |
167 | {0x545200FF, "TriTech TR?????", &tritech_m_ops}, | |
168 | {0x54524102, "TriTech TR28022", &null_ops}, | |
169 | {0x54524103, "TriTech TR28023", &null_ops}, | |
170 | {0x54524106, "TriTech TR28026", &null_ops}, | |
171 | {0x54524108, "TriTech TR28028", &tritech_ops}, | |
172 | {0x54524123, "TriTech TR A5", &null_ops}, | |
173 | {0x574D4C03, "Wolfson WM9703/07/08/17", &wolfson_ops03}, | |
174 | {0x574D4C04, "Wolfson WM9704M/WM9704Q", &wolfson_ops04}, | |
175 | {0x574D4C05, "Wolfson WM9705/WM9710", &wolfson_ops05}, | |
176 | {0x574D4C09, "Wolfson WM9709", &null_ops}, | |
177 | {0x574D4C12, "Wolfson WM9711/9712", &wolfson_ops11}, | |
178 | {0x574D4C13, "Wolfson WM9713", &wolfson_ops13, AC97_DEFAULT_POWER_OFF}, | |
179 | {0x83847600, "SigmaTel STAC????", &null_ops}, | |
180 | {0x83847604, "SigmaTel STAC9701/3/4/5", &null_ops}, | |
181 | {0x83847605, "SigmaTel STAC9704", &null_ops}, | |
182 | {0x83847608, "SigmaTel STAC9708", &sigmatel_9708_ops}, | |
183 | {0x83847609, "SigmaTel STAC9721/23", &sigmatel_9721_ops}, | |
184 | {0x83847644, "SigmaTel STAC9744/45", &sigmatel_9744_ops}, | |
185 | {0x83847652, "SigmaTel STAC9752/53", &default_ops}, | |
186 | {0x83847656, "SigmaTel STAC9756/57", &sigmatel_9744_ops}, | |
187 | {0x83847666, "SigmaTel STAC9750T", &sigmatel_9744_ops}, | |
188 | {0x83847684, "SigmaTel STAC9783/84?", &null_ops}, | |
189 | {0x57454301, "Winbond 83971D", &null_ops}, | |
190 | }; | |
191 | ||
1da177e4 LT |
192 | /* this table has default mixer values for all OSS mixers. */ |
193 | static struct mixer_defaults { | |
194 | int mixer; | |
195 | unsigned int value; | |
196 | } mixer_defaults[SOUND_MIXER_NRDEVICES] = { | |
197 | /* all values 0 -> 100 in bytes */ | |
198 | {SOUND_MIXER_VOLUME, 0x4343}, | |
199 | {SOUND_MIXER_BASS, 0x4343}, | |
200 | {SOUND_MIXER_TREBLE, 0x4343}, | |
201 | {SOUND_MIXER_PCM, 0x4343}, | |
202 | {SOUND_MIXER_SPEAKER, 0x4343}, | |
203 | {SOUND_MIXER_LINE, 0x4343}, | |
204 | {SOUND_MIXER_MIC, 0x0000}, | |
205 | {SOUND_MIXER_CD, 0x4343}, | |
206 | {SOUND_MIXER_ALTPCM, 0x4343}, | |
207 | {SOUND_MIXER_IGAIN, 0x4343}, | |
208 | {SOUND_MIXER_LINE1, 0x4343}, | |
209 | {SOUND_MIXER_PHONEIN, 0x4343}, | |
210 | {SOUND_MIXER_PHONEOUT, 0x4343}, | |
211 | {SOUND_MIXER_VIDEO, 0x4343}, | |
212 | {-1,0} | |
213 | }; | |
214 | ||
215 | /* table to scale scale from OSS mixer value to AC97 mixer register value */ | |
216 | static struct ac97_mixer_hw { | |
217 | unsigned char offset; | |
218 | int scale; | |
219 | } ac97_hw[SOUND_MIXER_NRDEVICES]= { | |
220 | [SOUND_MIXER_VOLUME] = {AC97_MASTER_VOL_STEREO,64}, | |
221 | [SOUND_MIXER_BASS] = {AC97_MASTER_TONE, 16}, | |
222 | [SOUND_MIXER_TREBLE] = {AC97_MASTER_TONE, 16}, | |
223 | [SOUND_MIXER_PCM] = {AC97_PCMOUT_VOL, 32}, | |
224 | [SOUND_MIXER_SPEAKER] = {AC97_PCBEEP_VOL, 16}, | |
225 | [SOUND_MIXER_LINE] = {AC97_LINEIN_VOL, 32}, | |
226 | [SOUND_MIXER_MIC] = {AC97_MIC_VOL, 32}, | |
227 | [SOUND_MIXER_CD] = {AC97_CD_VOL, 32}, | |
228 | [SOUND_MIXER_ALTPCM] = {AC97_HEADPHONE_VOL, 64}, | |
229 | [SOUND_MIXER_IGAIN] = {AC97_RECORD_GAIN, 16}, | |
230 | [SOUND_MIXER_LINE1] = {AC97_AUX_VOL, 32}, | |
231 | [SOUND_MIXER_PHONEIN] = {AC97_PHONE_VOL, 32}, | |
232 | [SOUND_MIXER_PHONEOUT] = {AC97_MASTER_VOL_MONO, 64}, | |
233 | [SOUND_MIXER_VIDEO] = {AC97_VIDEO_VOL, 32}, | |
234 | }; | |
235 | ||
236 | /* the following tables allow us to go from OSS <-> ac97 quickly. */ | |
237 | enum ac97_recsettings { | |
238 | AC97_REC_MIC=0, | |
239 | AC97_REC_CD, | |
240 | AC97_REC_VIDEO, | |
241 | AC97_REC_AUX, | |
242 | AC97_REC_LINE, | |
243 | AC97_REC_STEREO, /* combination of all enabled outputs.. */ | |
244 | AC97_REC_MONO, /*.. or the mono equivalent */ | |
245 | AC97_REC_PHONE | |
246 | }; | |
247 | ||
248 | static const unsigned int ac97_rm2oss[] = { | |
249 | [AC97_REC_MIC] = SOUND_MIXER_MIC, | |
250 | [AC97_REC_CD] = SOUND_MIXER_CD, | |
251 | [AC97_REC_VIDEO] = SOUND_MIXER_VIDEO, | |
252 | [AC97_REC_AUX] = SOUND_MIXER_LINE1, | |
253 | [AC97_REC_LINE] = SOUND_MIXER_LINE, | |
254 | [AC97_REC_STEREO]= SOUND_MIXER_IGAIN, | |
255 | [AC97_REC_PHONE] = SOUND_MIXER_PHONEIN | |
256 | }; | |
257 | ||
258 | /* indexed by bit position */ | |
259 | static const unsigned int ac97_oss_rm[] = { | |
260 | [SOUND_MIXER_MIC] = AC97_REC_MIC, | |
261 | [SOUND_MIXER_CD] = AC97_REC_CD, | |
262 | [SOUND_MIXER_VIDEO] = AC97_REC_VIDEO, | |
263 | [SOUND_MIXER_LINE1] = AC97_REC_AUX, | |
264 | [SOUND_MIXER_LINE] = AC97_REC_LINE, | |
265 | [SOUND_MIXER_IGAIN] = AC97_REC_STEREO, | |
266 | [SOUND_MIXER_PHONEIN] = AC97_REC_PHONE | |
267 | }; | |
268 | ||
269 | static LIST_HEAD(codecs); | |
270 | static LIST_HEAD(codec_drivers); | |
f82945df | 271 | static DEFINE_MUTEX(codec_mutex); |
1da177e4 LT |
272 | |
273 | /* reads the given OSS mixer from the ac97 the caller must have insured that the ac97 knows | |
274 | about that given mixer, and should be holding a spinlock for the card */ | |
275 | static int ac97_read_mixer(struct ac97_codec *codec, int oss_channel) | |
276 | { | |
277 | u16 val; | |
278 | int ret = 0; | |
279 | int scale; | |
280 | struct ac97_mixer_hw *mh = &ac97_hw[oss_channel]; | |
281 | ||
282 | val = codec->codec_read(codec , mh->offset); | |
283 | ||
284 | if (val & AC97_MUTE) { | |
285 | ret = 0; | |
286 | } else if (AC97_STEREO_MASK & (1 << oss_channel)) { | |
287 | /* nice stereo mixers .. */ | |
288 | int left,right; | |
289 | ||
290 | left = (val >> 8) & 0x7f; | |
291 | right = val & 0x7f; | |
292 | ||
293 | if (oss_channel == SOUND_MIXER_IGAIN) { | |
294 | right = (right * 100) / mh->scale; | |
295 | left = (left * 100) / mh->scale; | |
296 | } else { | |
297 | /* these may have 5 or 6 bit resolution */ | |
298 | if(oss_channel == SOUND_MIXER_VOLUME || oss_channel == SOUND_MIXER_ALTPCM) | |
299 | scale = (1 << codec->bit_resolution); | |
300 | else | |
301 | scale = mh->scale; | |
302 | ||
303 | right = 100 - ((right * 100) / scale); | |
304 | left = 100 - ((left * 100) / scale); | |
305 | } | |
306 | ret = left | (right << 8); | |
307 | } else if (oss_channel == SOUND_MIXER_SPEAKER) { | |
308 | ret = 100 - ((((val & 0x1e)>>1) * 100) / mh->scale); | |
309 | } else if (oss_channel == SOUND_MIXER_PHONEIN) { | |
310 | ret = 100 - (((val & 0x1f) * 100) / mh->scale); | |
311 | } else if (oss_channel == SOUND_MIXER_PHONEOUT) { | |
312 | scale = (1 << codec->bit_resolution); | |
313 | ret = 100 - (((val & 0x1f) * 100) / scale); | |
314 | } else if (oss_channel == SOUND_MIXER_MIC) { | |
315 | ret = 100 - (((val & 0x1f) * 100) / mh->scale); | |
316 | /* the low bit is optional in the tone sliders and masking | |
317 | it lets us avoid the 0xf 'bypass'.. */ | |
318 | } else if (oss_channel == SOUND_MIXER_BASS) { | |
319 | ret = 100 - ((((val >> 8) & 0xe) * 100) / mh->scale); | |
320 | } else if (oss_channel == SOUND_MIXER_TREBLE) { | |
321 | ret = 100 - (((val & 0xe) * 100) / mh->scale); | |
322 | } | |
323 | ||
324 | #ifdef DEBUG | |
325 | printk("ac97_codec: read OSS mixer %2d (%s ac97 register 0x%02x), " | |
326 | "0x%04x -> 0x%04x\n", | |
327 | oss_channel, codec->id ? "Secondary" : "Primary", | |
328 | mh->offset, val, ret); | |
329 | #endif | |
330 | ||
331 | return ret; | |
332 | } | |
333 | ||
334 | /* write the OSS encoded volume to the given OSS encoded mixer, again caller's job to | |
335 | make sure all is well in arg land, call with spinlock held */ | |
336 | static void ac97_write_mixer(struct ac97_codec *codec, int oss_channel, | |
337 | unsigned int left, unsigned int right) | |
338 | { | |
339 | u16 val = 0; | |
340 | int scale; | |
341 | struct ac97_mixer_hw *mh = &ac97_hw[oss_channel]; | |
342 | ||
343 | #ifdef DEBUG | |
344 | printk("ac97_codec: wrote OSS mixer %2d (%s ac97 register 0x%02x), " | |
345 | "left vol:%2d, right vol:%2d:", | |
346 | oss_channel, codec->id ? "Secondary" : "Primary", | |
347 | mh->offset, left, right); | |
348 | #endif | |
349 | ||
350 | if (AC97_STEREO_MASK & (1 << oss_channel)) { | |
351 | /* stereo mixers */ | |
352 | if (left == 0 && right == 0) { | |
353 | val = AC97_MUTE; | |
354 | } else { | |
355 | if (oss_channel == SOUND_MIXER_IGAIN) { | |
356 | right = (right * mh->scale) / 100; | |
357 | left = (left * mh->scale) / 100; | |
358 | if (right >= mh->scale) | |
359 | right = mh->scale-1; | |
360 | if (left >= mh->scale) | |
361 | left = mh->scale-1; | |
362 | } else { | |
363 | /* these may have 5 or 6 bit resolution */ | |
364 | if (oss_channel == SOUND_MIXER_VOLUME || | |
365 | oss_channel == SOUND_MIXER_ALTPCM) | |
366 | scale = (1 << codec->bit_resolution); | |
367 | else | |
368 | scale = mh->scale; | |
369 | ||
370 | right = ((100 - right) * scale) / 100; | |
371 | left = ((100 - left) * scale) / 100; | |
372 | if (right >= scale) | |
373 | right = scale-1; | |
374 | if (left >= scale) | |
375 | left = scale-1; | |
376 | } | |
377 | val = (left << 8) | right; | |
378 | } | |
379 | } else if (oss_channel == SOUND_MIXER_BASS) { | |
380 | val = codec->codec_read(codec , mh->offset) & ~0x0f00; | |
381 | left = ((100 - left) * mh->scale) / 100; | |
382 | if (left >= mh->scale) | |
383 | left = mh->scale-1; | |
384 | val |= (left << 8) & 0x0e00; | |
385 | } else if (oss_channel == SOUND_MIXER_TREBLE) { | |
386 | val = codec->codec_read(codec , mh->offset) & ~0x000f; | |
387 | left = ((100 - left) * mh->scale) / 100; | |
388 | if (left >= mh->scale) | |
389 | left = mh->scale-1; | |
390 | val |= left & 0x000e; | |
391 | } else if(left == 0) { | |
392 | val = AC97_MUTE; | |
393 | } else if (oss_channel == SOUND_MIXER_SPEAKER) { | |
394 | left = ((100 - left) * mh->scale) / 100; | |
395 | if (left >= mh->scale) | |
396 | left = mh->scale-1; | |
397 | val = left << 1; | |
398 | } else if (oss_channel == SOUND_MIXER_PHONEIN) { | |
399 | left = ((100 - left) * mh->scale) / 100; | |
400 | if (left >= mh->scale) | |
401 | left = mh->scale-1; | |
402 | val = left; | |
403 | } else if (oss_channel == SOUND_MIXER_PHONEOUT) { | |
404 | scale = (1 << codec->bit_resolution); | |
405 | left = ((100 - left) * scale) / 100; | |
406 | if (left >= mh->scale) | |
407 | left = mh->scale-1; | |
408 | val = left; | |
409 | } else if (oss_channel == SOUND_MIXER_MIC) { | |
410 | val = codec->codec_read(codec , mh->offset) & ~0x801f; | |
411 | left = ((100 - left) * mh->scale) / 100; | |
412 | if (left >= mh->scale) | |
413 | left = mh->scale-1; | |
414 | val |= left; | |
415 | /* the low bit is optional in the tone sliders and masking | |
416 | it lets us avoid the 0xf 'bypass'.. */ | |
417 | } | |
418 | #ifdef DEBUG | |
419 | printk(" 0x%04x", val); | |
420 | #endif | |
421 | ||
422 | codec->codec_write(codec, mh->offset, val); | |
423 | ||
424 | #ifdef DEBUG | |
425 | val = codec->codec_read(codec, mh->offset); | |
426 | printk(" -> 0x%04x\n", val); | |
427 | #endif | |
428 | } | |
429 | ||
430 | /* a thin wrapper for write_mixer */ | |
431 | static void ac97_set_mixer(struct ac97_codec *codec, unsigned int oss_mixer, unsigned int val ) | |
432 | { | |
433 | unsigned int left,right; | |
434 | ||
435 | /* cleanse input a little */ | |
436 | right = ((val >> 8) & 0xff) ; | |
437 | left = (val & 0xff) ; | |
438 | ||
439 | if (right > 100) right = 100; | |
440 | if (left > 100) left = 100; | |
441 | ||
442 | codec->mixer_state[oss_mixer] = (right << 8) | left; | |
443 | codec->write_mixer(codec, oss_mixer, left, right); | |
444 | } | |
445 | ||
446 | /* read or write the recmask, the ac97 can really have left and right recording | |
447 | inputs independantly set, but OSS doesn't seem to want us to express that to | |
448 | the user. the caller guarantees that we have a supported bit set, and they | |
449 | must be holding the card's spinlock */ | |
450 | static int ac97_recmask_io(struct ac97_codec *codec, int rw, int mask) | |
451 | { | |
452 | unsigned int val; | |
453 | ||
454 | if (rw) { | |
455 | /* read it from the card */ | |
456 | val = codec->codec_read(codec, AC97_RECORD_SELECT); | |
457 | #ifdef DEBUG | |
458 | printk("ac97_codec: ac97 recmask to set to 0x%04x\n", val); | |
459 | #endif | |
460 | return (1 << ac97_rm2oss[val & 0x07]); | |
461 | } | |
462 | ||
463 | /* else, write the first set in the mask as the | |
464 | output */ | |
465 | /* clear out current set value first (AC97 supports only 1 input!) */ | |
466 | val = (1 << ac97_rm2oss[codec->codec_read(codec, AC97_RECORD_SELECT) & 0x07]); | |
467 | if (mask != val) | |
468 | mask &= ~val; | |
469 | ||
470 | val = ffs(mask); | |
471 | val = ac97_oss_rm[val-1]; | |
472 | val |= val << 8; /* set both channels */ | |
473 | ||
474 | #ifdef DEBUG | |
475 | printk("ac97_codec: setting ac97 recmask to 0x%04x\n", val); | |
476 | #endif | |
477 | ||
478 | codec->codec_write(codec, AC97_RECORD_SELECT, val); | |
479 | ||
480 | return 0; | |
481 | }; | |
482 | ||
483 | static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg) | |
484 | { | |
485 | int i, val = 0; | |
486 | ||
487 | if (cmd == SOUND_MIXER_INFO) { | |
488 | mixer_info info; | |
489 | memset(&info, 0, sizeof(info)); | |
490 | strlcpy(info.id, codec->name, sizeof(info.id)); | |
491 | strlcpy(info.name, codec->name, sizeof(info.name)); | |
492 | info.modify_counter = codec->modcnt; | |
493 | if (copy_to_user((void __user *)arg, &info, sizeof(info))) | |
494 | return -EFAULT; | |
495 | return 0; | |
496 | } | |
497 | if (cmd == SOUND_OLD_MIXER_INFO) { | |
498 | _old_mixer_info info; | |
499 | memset(&info, 0, sizeof(info)); | |
500 | strlcpy(info.id, codec->name, sizeof(info.id)); | |
501 | strlcpy(info.name, codec->name, sizeof(info.name)); | |
502 | if (copy_to_user((void __user *)arg, &info, sizeof(info))) | |
503 | return -EFAULT; | |
504 | return 0; | |
505 | } | |
506 | ||
507 | if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int)) | |
508 | return -EINVAL; | |
509 | ||
510 | if (cmd == OSS_GETVERSION) | |
511 | return put_user(SOUND_VERSION, (int __user *)arg); | |
512 | ||
513 | if (_SIOC_DIR(cmd) == _SIOC_READ) { | |
514 | switch (_IOC_NR(cmd)) { | |
515 | case SOUND_MIXER_RECSRC: /* give them the current record source */ | |
516 | if (!codec->recmask_io) { | |
517 | val = 0; | |
518 | } else { | |
519 | val = codec->recmask_io(codec, 1, 0); | |
520 | } | |
521 | break; | |
522 | ||
523 | case SOUND_MIXER_DEVMASK: /* give them the supported mixers */ | |
524 | val = codec->supported_mixers; | |
525 | break; | |
526 | ||
527 | case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */ | |
528 | val = codec->record_sources; | |
529 | break; | |
530 | ||
531 | case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */ | |
532 | val = codec->stereo_mixers; | |
533 | break; | |
534 | ||
535 | case SOUND_MIXER_CAPS: | |
536 | val = SOUND_CAP_EXCL_INPUT; | |
537 | break; | |
538 | ||
539 | default: /* read a specific mixer */ | |
540 | i = _IOC_NR(cmd); | |
541 | ||
542 | if (!supported_mixer(codec, i)) | |
543 | return -EINVAL; | |
544 | ||
545 | /* do we ever want to touch the hardware? */ | |
546 | /* val = codec->read_mixer(codec, i); */ | |
547 | val = codec->mixer_state[i]; | |
548 | break; | |
549 | } | |
550 | return put_user(val, (int __user *)arg); | |
551 | } | |
552 | ||
553 | if (_SIOC_DIR(cmd) == (_SIOC_WRITE|_SIOC_READ)) { | |
554 | codec->modcnt++; | |
555 | if (get_user(val, (int __user *)arg)) | |
556 | return -EFAULT; | |
557 | ||
558 | switch (_IOC_NR(cmd)) { | |
559 | case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */ | |
560 | if (!codec->recmask_io) return -EINVAL; | |
561 | if (!val) return 0; | |
562 | if (!(val &= codec->record_sources)) return -EINVAL; | |
563 | ||
564 | codec->recmask_io(codec, 0, val); | |
565 | ||
566 | return 0; | |
567 | default: /* write a specific mixer */ | |
568 | i = _IOC_NR(cmd); | |
569 | ||
570 | if (!supported_mixer(codec, i)) | |
571 | return -EINVAL; | |
572 | ||
573 | ac97_set_mixer(codec, i, val); | |
574 | ||
575 | return 0; | |
576 | } | |
577 | } | |
578 | return -EINVAL; | |
579 | } | |
580 | ||
1da177e4 LT |
581 | /** |
582 | * codec_id - Turn id1/id2 into a PnP string | |
583 | * @id1: Vendor ID1 | |
584 | * @id2: Vendor ID2 | |
585 | * @buf: CODEC_ID_BUFSZ byte buffer | |
586 | * | |
587 | * Fills buf with a zero terminated PnP ident string for the id1/id2 | |
588 | * pair. For convenience the return is the passed in buffer pointer. | |
589 | */ | |
590 | ||
591 | static char *codec_id(u16 id1, u16 id2, char *buf) | |
592 | { | |
593 | if(id1&0x8080) { | |
594 | snprintf(buf, CODEC_ID_BUFSZ, "0x%04x:0x%04x", id1, id2); | |
595 | } else { | |
596 | buf[0] = (id1 >> 8); | |
597 | buf[1] = (id1 & 0xFF); | |
598 | buf[2] = (id2 >> 8); | |
599 | snprintf(buf+3, CODEC_ID_BUFSZ - 3, "%d", id2&0xFF); | |
600 | } | |
601 | return buf; | |
602 | } | |
603 | ||
604 | /** | |
605 | * ac97_check_modem - Check if the Codec is a modem | |
606 | * @codec: codec to check | |
607 | * | |
608 | * Return true if the device is an AC97 1.0 or AC97 2.0 modem | |
609 | */ | |
610 | ||
611 | static int ac97_check_modem(struct ac97_codec *codec) | |
612 | { | |
613 | /* Check for an AC97 1.0 soft modem (ID1) */ | |
614 | if(codec->codec_read(codec, AC97_RESET) & 2) | |
615 | return 1; | |
616 | /* Check for an AC97 2.x soft modem */ | |
617 | codec->codec_write(codec, AC97_EXTENDED_MODEM_ID, 0L); | |
618 | if(codec->codec_read(codec, AC97_EXTENDED_MODEM_ID) & 1) | |
619 | return 1; | |
620 | return 0; | |
621 | } | |
622 | ||
623 | ||
624 | /** | |
625 | * ac97_alloc_codec - Allocate an AC97 codec | |
626 | * | |
627 | * Returns a new AC97 codec structure. AC97 codecs may become | |
628 | * refcounted soon so this interface is needed. Returns with | |
629 | * one reference taken. | |
630 | */ | |
631 | ||
632 | struct ac97_codec *ac97_alloc_codec(void) | |
633 | { | |
3159f06d | 634 | struct ac97_codec *codec = kzalloc(sizeof(struct ac97_codec), GFP_KERNEL); |
1da177e4 LT |
635 | if(!codec) |
636 | return NULL; | |
637 | ||
1da177e4 LT |
638 | spin_lock_init(&codec->lock); |
639 | INIT_LIST_HEAD(&codec->list); | |
640 | return codec; | |
641 | } | |
642 | ||
643 | EXPORT_SYMBOL(ac97_alloc_codec); | |
644 | ||
645 | /** | |
646 | * ac97_release_codec - Release an AC97 codec | |
647 | * @codec: codec to release | |
648 | * | |
649 | * Release an allocated AC97 codec. This will be refcounted in | |
650 | * time but for the moment is trivial. Calls the unregister | |
651 | * handler if the codec is now defunct. | |
652 | */ | |
653 | ||
654 | void ac97_release_codec(struct ac97_codec *codec) | |
655 | { | |
656 | /* Remove from the list first, we don't want to be | |
657 | "rediscovered" */ | |
f82945df | 658 | mutex_lock(&codec_mutex); |
1da177e4 | 659 | list_del(&codec->list); |
f82945df | 660 | mutex_unlock(&codec_mutex); |
1da177e4 LT |
661 | /* |
662 | * The driver needs to deal with internal | |
663 | * locking to avoid accidents here. | |
664 | */ | |
665 | if(codec->driver) | |
666 | codec->driver->remove(codec, codec->driver); | |
667 | kfree(codec); | |
668 | } | |
669 | ||
670 | EXPORT_SYMBOL(ac97_release_codec); | |
671 | ||
672 | /** | |
673 | * ac97_probe_codec - Initialize and setup AC97-compatible codec | |
674 | * @codec: (in/out) Kernel info for a single AC97 codec | |
675 | * | |
676 | * Reset the AC97 codec, then initialize the mixer and | |
677 | * the rest of the @codec structure. | |
678 | * | |
679 | * The codec_read and codec_write fields of @codec are | |
680 | * required to be setup and working when this function | |
681 | * is called. All other fields are set by this function. | |
682 | * | |
683 | * codec_wait field of @codec can optionally be provided | |
684 | * when calling this function. If codec_wait is not %NULL, | |
685 | * this function will call codec_wait any time it is | |
686 | * necessary to wait for the audio chip to reach the | |
687 | * codec-ready state. If codec_wait is %NULL, then | |
688 | * the default behavior is to call schedule_timeout. | |
689 | * Currently codec_wait is used to wait for AC97 codec | |
690 | * reset to complete. | |
691 | * | |
692 | * Some codecs will power down when a register reset is | |
693 | * performed. We now check for such codecs. | |
694 | * | |
695 | * Returns 1 (true) on success, or 0 (false) on failure. | |
696 | */ | |
697 | ||
698 | int ac97_probe_codec(struct ac97_codec *codec) | |
699 | { | |
700 | u16 id1, id2; | |
701 | u16 audio; | |
702 | int i; | |
703 | char cidbuf[CODEC_ID_BUFSZ]; | |
704 | u16 f; | |
705 | struct list_head *l; | |
706 | struct ac97_driver *d; | |
707 | ||
708 | /* wait for codec-ready state */ | |
709 | if (codec->codec_wait) | |
710 | codec->codec_wait(codec); | |
711 | else | |
712 | udelay(10); | |
713 | ||
714 | /* will the codec power down if register reset ? */ | |
715 | id1 = codec->codec_read(codec, AC97_VENDOR_ID1); | |
716 | id2 = codec->codec_read(codec, AC97_VENDOR_ID2); | |
717 | codec->name = NULL; | |
718 | codec->codec_ops = &null_ops; | |
719 | for (i = 0; i < ARRAY_SIZE(ac97_codec_ids); i++) { | |
720 | if (ac97_codec_ids[i].id == ((id1 << 16) | id2)) { | |
721 | codec->type = ac97_codec_ids[i].id; | |
722 | codec->name = ac97_codec_ids[i].name; | |
723 | codec->codec_ops = ac97_codec_ids[i].ops; | |
724 | codec->flags = ac97_codec_ids[i].flags; | |
725 | break; | |
726 | } | |
727 | } | |
728 | ||
729 | codec->model = (id1 << 16) | id2; | |
730 | if ((codec->flags & AC97_DEFAULT_POWER_OFF) == 0) { | |
731 | /* reset codec and wait for the ready bit before we continue */ | |
732 | codec->codec_write(codec, AC97_RESET, 0L); | |
733 | if (codec->codec_wait) | |
734 | codec->codec_wait(codec); | |
735 | else | |
736 | udelay(10); | |
737 | } | |
738 | ||
739 | /* probing AC97 codec, AC97 2.0 says that bit 15 of register 0x00 (reset) should | |
740 | * be read zero. | |
741 | * | |
742 | * FIXME: is the following comment outdated? -jgarzik | |
743 | * Probing of AC97 in this way is not reliable, it is not even SAFE !! | |
744 | */ | |
745 | if ((audio = codec->codec_read(codec, AC97_RESET)) & 0x8000) { | |
746 | printk(KERN_ERR "ac97_codec: %s ac97 codec not present\n", | |
747 | (codec->id & 0x2) ? (codec->id&1 ? "4th" : "Tertiary") | |
748 | : (codec->id&1 ? "Secondary": "Primary")); | |
749 | return 0; | |
750 | } | |
751 | ||
752 | /* probe for Modem Codec */ | |
753 | codec->modem = ac97_check_modem(codec); | |
754 | ||
755 | /* enable SPDIF */ | |
756 | f = codec->codec_read(codec, AC97_EXTENDED_STATUS); | |
757 | if((codec->codec_ops == &null_ops) && (f & 4)) | |
758 | codec->codec_ops = &default_digital_ops; | |
759 | ||
760 | /* A device which thinks its a modem but isnt */ | |
761 | if(codec->flags & AC97_DELUDED_MODEM) | |
762 | codec->modem = 0; | |
763 | ||
764 | if (codec->name == NULL) | |
765 | codec->name = "Unknown"; | |
766 | printk(KERN_INFO "ac97_codec: AC97 %s codec, id: %s (%s)\n", | |
767 | codec->modem ? "Modem" : (audio ? "Audio" : ""), | |
768 | codec_id(id1, id2, cidbuf), codec->name); | |
769 | ||
770 | if(!ac97_init_mixer(codec)) | |
771 | return 0; | |
772 | ||
773 | /* | |
774 | * Attach last so the caller can override the mixer | |
775 | * callbacks. | |
776 | */ | |
777 | ||
f82945df | 778 | mutex_lock(&codec_mutex); |
1da177e4 LT |
779 | list_add(&codec->list, &codecs); |
780 | ||
781 | list_for_each(l, &codec_drivers) { | |
782 | d = list_entry(l, struct ac97_driver, list); | |
783 | if ((codec->model ^ d->codec_id) & d->codec_mask) | |
784 | continue; | |
785 | if(d->probe(codec, d) == 0) | |
786 | { | |
787 | codec->driver = d; | |
788 | break; | |
789 | } | |
790 | } | |
791 | ||
f82945df | 792 | mutex_unlock(&codec_mutex); |
1da177e4 LT |
793 | return 1; |
794 | } | |
795 | ||
796 | static int ac97_init_mixer(struct ac97_codec *codec) | |
797 | { | |
798 | u16 cap; | |
799 | int i; | |
800 | ||
801 | cap = codec->codec_read(codec, AC97_RESET); | |
802 | ||
803 | /* mixer masks */ | |
804 | codec->supported_mixers = AC97_SUPPORTED_MASK; | |
805 | codec->stereo_mixers = AC97_STEREO_MASK; | |
806 | codec->record_sources = AC97_RECORD_MASK; | |
807 | if (!(cap & 0x04)) | |
808 | codec->supported_mixers &= ~(SOUND_MASK_BASS|SOUND_MASK_TREBLE); | |
809 | if (!(cap & 0x10)) | |
810 | codec->supported_mixers &= ~SOUND_MASK_ALTPCM; | |
811 | ||
812 | ||
813 | /* detect bit resolution */ | |
814 | codec->codec_write(codec, AC97_MASTER_VOL_STEREO, 0x2020); | |
815 | if(codec->codec_read(codec, AC97_MASTER_VOL_STEREO) == 0x2020) | |
816 | codec->bit_resolution = 6; | |
817 | else | |
818 | codec->bit_resolution = 5; | |
819 | ||
820 | /* generic OSS to AC97 wrapper */ | |
821 | codec->read_mixer = ac97_read_mixer; | |
822 | codec->write_mixer = ac97_write_mixer; | |
823 | codec->recmask_io = ac97_recmask_io; | |
824 | codec->mixer_ioctl = ac97_mixer_ioctl; | |
825 | ||
826 | /* initialize mixer channel volumes */ | |
827 | for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { | |
828 | struct mixer_defaults *md = &mixer_defaults[i]; | |
829 | if (md->mixer == -1) | |
830 | break; | |
831 | if (!supported_mixer(codec, md->mixer)) | |
832 | continue; | |
833 | ac97_set_mixer(codec, md->mixer, md->value); | |
834 | } | |
835 | ||
836 | /* codec specific initialization for 4-6 channel output or secondary codec stuff */ | |
837 | if (codec->codec_ops->init != NULL) { | |
838 | codec->codec_ops->init(codec); | |
839 | } | |
840 | ||
841 | /* | |
842 | * Volume is MUTE only on this device. We have to initialise | |
843 | * it but its useless beyond that. | |
844 | */ | |
845 | if(codec->flags & AC97_NO_PCM_VOLUME) | |
846 | { | |
847 | codec->supported_mixers &= ~SOUND_MASK_PCM; | |
848 | printk(KERN_WARNING "AC97 codec does not have proper volume support.\n"); | |
849 | } | |
850 | return 1; | |
851 | } | |
852 | ||
853 | #define AC97_SIGMATEL_ANALOG 0x6c /* Analog Special */ | |
854 | #define AC97_SIGMATEL_DAC2INVERT 0x6e | |
855 | #define AC97_SIGMATEL_BIAS1 0x70 | |
856 | #define AC97_SIGMATEL_BIAS2 0x72 | |
857 | #define AC97_SIGMATEL_MULTICHN 0x74 /* Multi-Channel programming */ | |
858 | #define AC97_SIGMATEL_CIC1 0x76 | |
859 | #define AC97_SIGMATEL_CIC2 0x78 | |
860 | ||
861 | ||
862 | static int sigmatel_9708_init(struct ac97_codec * codec) | |
863 | { | |
864 | u16 codec72, codec6c; | |
865 | ||
866 | codec72 = codec->codec_read(codec, AC97_SIGMATEL_BIAS2) & 0x8000; | |
867 | codec6c = codec->codec_read(codec, AC97_SIGMATEL_ANALOG); | |
868 | ||
869 | if ((codec72==0) && (codec6c==0)) { | |
870 | codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); | |
871 | codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x1000); | |
872 | codec->codec_write(codec, AC97_SIGMATEL_BIAS1, 0xabba); | |
873 | codec->codec_write(codec, AC97_SIGMATEL_BIAS2, 0x0007); | |
874 | } else if ((codec72==0x8000) && (codec6c==0)) { | |
875 | codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); | |
876 | codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x1001); | |
877 | codec->codec_write(codec, AC97_SIGMATEL_DAC2INVERT, 0x0008); | |
878 | } else if ((codec72==0x8000) && (codec6c==0x0080)) { | |
879 | /* nothing */ | |
880 | } | |
881 | codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x0000); | |
882 | return 0; | |
883 | } | |
884 | ||
885 | ||
886 | static int sigmatel_9721_init(struct ac97_codec * codec) | |
887 | { | |
888 | /* Only set up secondary codec */ | |
889 | if (codec->id == 0) | |
890 | return 0; | |
891 | ||
892 | codec->codec_write(codec, AC97_SURROUND_MASTER, 0L); | |
893 | ||
894 | /* initialize SigmaTel STAC9721/23 as secondary codec, decoding AC link | |
895 | sloc 3,4 = 0x01, slot 7,8 = 0x00, */ | |
896 | codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x00); | |
897 | ||
898 | /* we don't have the crystal when we are on an AMR card, so use | |
899 | BIT_CLK as our clock source. Write the magic word ABBA and read | |
900 | back to enable register 0x78 */ | |
901 | codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); | |
902 | codec->codec_read(codec, AC97_SIGMATEL_CIC1); | |
903 | ||
904 | /* sync all the clocks*/ | |
905 | codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x3802); | |
906 | ||
907 | return 0; | |
908 | } | |
909 | ||
910 | ||
911 | static int sigmatel_9744_init(struct ac97_codec * codec) | |
912 | { | |
913 | // patch for SigmaTel | |
914 | codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); | |
915 | codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x0000); // is this correct? --jk | |
916 | codec->codec_write(codec, AC97_SIGMATEL_BIAS1, 0xabba); | |
917 | codec->codec_write(codec, AC97_SIGMATEL_BIAS2, 0x0002); | |
918 | codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x0000); | |
919 | return 0; | |
920 | } | |
921 | ||
922 | static int cmedia_init(struct ac97_codec *codec) | |
923 | { | |
924 | /* Initialise the CMedia 9739 */ | |
925 | /* | |
926 | We could set various options here | |
927 | Register 0x20 bit 0x100 sets mic as center bass | |
928 | Also do multi_channel_ctrl &=~0x3000 |=0x1000 | |
929 | ||
930 | For now we set up the GPIO and PC beep | |
931 | */ | |
932 | ||
933 | u16 v; | |
934 | ||
935 | /* MIC */ | |
936 | codec->codec_write(codec, 0x64, 0x3000); | |
937 | v = codec->codec_read(codec, 0x64); | |
938 | v &= ~0x8000; | |
939 | codec->codec_write(codec, 0x64, v); | |
940 | codec->codec_write(codec, 0x70, 0x0100); | |
941 | codec->codec_write(codec, 0x72, 0x0020); | |
942 | return 0; | |
943 | } | |
944 | ||
945 | #define AC97_WM97XX_FMIXER_VOL 0x72 | |
946 | #define AC97_WM97XX_RMIXER_VOL 0x74 | |
947 | #define AC97_WM97XX_TEST 0x5a | |
948 | #define AC97_WM9704_RPCM_VOL 0x70 | |
949 | #define AC97_WM9711_OUT3VOL 0x16 | |
950 | ||
951 | static int wolfson_init03(struct ac97_codec * codec) | |
952 | { | |
953 | /* this is known to work for the ViewSonic ViewPad 1000 */ | |
954 | codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); | |
955 | codec->codec_write(codec, AC97_GENERAL_PURPOSE, 0x8000); | |
956 | return 0; | |
957 | } | |
958 | ||
959 | static int wolfson_init04(struct ac97_codec * codec) | |
960 | { | |
961 | codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); | |
962 | codec->codec_write(codec, AC97_WM97XX_RMIXER_VOL, 0x0808); | |
963 | ||
964 | // patch for DVD noise | |
965 | codec->codec_write(codec, AC97_WM97XX_TEST, 0x0200); | |
966 | ||
967 | // init vol as PCM vol | |
968 | codec->codec_write(codec, AC97_WM9704_RPCM_VOL, | |
969 | codec->codec_read(codec, AC97_PCMOUT_VOL)); | |
970 | ||
971 | /* set rear surround volume */ | |
972 | codec->codec_write(codec, AC97_SURROUND_MASTER, 0x0000); | |
973 | return 0; | |
974 | } | |
975 | ||
976 | /* WM9705, WM9710 */ | |
977 | static int wolfson_init05(struct ac97_codec * codec) | |
978 | { | |
979 | /* set front mixer volume */ | |
980 | codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); | |
981 | return 0; | |
982 | } | |
983 | ||
984 | /* WM9711, WM9712 */ | |
985 | static int wolfson_init11(struct ac97_codec * codec) | |
986 | { | |
987 | /* stop pop's during suspend/resume */ | |
988 | codec->codec_write(codec, AC97_WM97XX_TEST, | |
989 | codec->codec_read(codec, AC97_WM97XX_TEST) & 0xffbf); | |
990 | ||
991 | /* set out3 volume */ | |
992 | codec->codec_write(codec, AC97_WM9711_OUT3VOL, 0x0808); | |
993 | return 0; | |
994 | } | |
995 | ||
996 | /* WM9713 */ | |
997 | static int wolfson_init13(struct ac97_codec * codec) | |
998 | { | |
999 | codec->codec_write(codec, AC97_RECORD_GAIN, 0x00a0); | |
1000 | codec->codec_write(codec, AC97_POWER_CONTROL, 0x0000); | |
1001 | codec->codec_write(codec, AC97_EXTENDED_MODEM_ID, 0xDA00); | |
1002 | codec->codec_write(codec, AC97_EXTEND_MODEM_STAT, 0x3810); | |
1003 | codec->codec_write(codec, AC97_PHONE_VOL, 0x0808); | |
1004 | codec->codec_write(codec, AC97_PCBEEP_VOL, 0x0808); | |
1005 | ||
1006 | return 0; | |
1007 | } | |
1008 | ||
1009 | static int tritech_init(struct ac97_codec * codec) | |
1010 | { | |
1011 | codec->codec_write(codec, 0x26, 0x0300); | |
1012 | codec->codec_write(codec, 0x26, 0x0000); | |
1013 | codec->codec_write(codec, AC97_SURROUND_MASTER, 0x0000); | |
1014 | codec->codec_write(codec, AC97_RESERVED_3A, 0x0000); | |
1015 | return 0; | |
1016 | } | |
1017 | ||
1018 | ||
1019 | /* copied from drivers/sound/maestro.c */ | |
1020 | static int tritech_maestro_init(struct ac97_codec * codec) | |
1021 | { | |
1022 | /* no idea what this does */ | |
1023 | codec->codec_write(codec, 0x2A, 0x0001); | |
1024 | codec->codec_write(codec, 0x2C, 0x0000); | |
1025 | codec->codec_write(codec, 0x2C, 0XFFFF); | |
1026 | return 0; | |
1027 | } | |
1028 | ||
1029 | ||
1030 | ||
1031 | /* | |
1032 | * Presario700 workaround | |
1033 | * for Jack Sense/SPDIF Register mis-setting causing | |
1034 | * no audible output | |
1035 | * by Santiago Nullo 04/05/2002 | |
1036 | */ | |
1037 | ||
1038 | #define AC97_AD1886_JACK_SENSE 0x72 | |
1039 | ||
1040 | static int ad1886_init(struct ac97_codec * codec) | |
1041 | { | |
1042 | /* from AD1886 Specs */ | |
1043 | codec->codec_write(codec, AC97_AD1886_JACK_SENSE, 0x0010); | |
1044 | return 0; | |
1045 | } | |
1046 | ||
1047 | ||
1048 | ||
1049 | ||
1050 | /* | |
1051 | * This is basically standard AC97. It should work as a default for | |
1052 | * almost all modern codecs. Note that some cards wire EAPD *backwards* | |
1053 | * That side of it is up to the card driver not us to cope with. | |
1054 | * | |
1055 | */ | |
1056 | ||
1057 | static int eapd_control(struct ac97_codec * codec, int on) | |
1058 | { | |
1059 | if(on) | |
1060 | codec->codec_write(codec, AC97_POWER_CONTROL, | |
1061 | codec->codec_read(codec, AC97_POWER_CONTROL)|0x8000); | |
1062 | else | |
1063 | codec->codec_write(codec, AC97_POWER_CONTROL, | |
1064 | codec->codec_read(codec, AC97_POWER_CONTROL)&~0x8000); | |
1065 | return 0; | |
1066 | } | |
1067 | ||
1068 | static int generic_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) | |
1069 | { | |
1070 | u16 reg; | |
1071 | ||
1072 | reg = codec->codec_read(codec, AC97_SPDIF_CONTROL); | |
1073 | ||
1074 | switch(rate) | |
1075 | { | |
1076 | /* Off by default */ | |
1077 | default: | |
1078 | case 0: | |
1079 | reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); | |
1080 | codec->codec_write(codec, AC97_EXTENDED_STATUS, (reg & ~AC97_EA_SPDIF)); | |
1081 | if(rate == 0) | |
1082 | return 0; | |
1083 | return -EINVAL; | |
1084 | case 1: | |
1085 | reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_48K; | |
1086 | break; | |
1087 | case 2: | |
1088 | reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_44K; | |
1089 | break; | |
1090 | case 3: | |
1091 | reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_32K; | |
1092 | break; | |
1093 | } | |
1094 | ||
1095 | reg &= ~AC97_SC_CC_MASK; | |
1096 | reg |= (mode & AUDIO_CCMASK) << 6; | |
1097 | ||
1098 | if(mode & AUDIO_DIGITAL) | |
1099 | reg |= 2; | |
1100 | if(mode & AUDIO_PRO) | |
1101 | reg |= 1; | |
1102 | if(mode & AUDIO_DRS) | |
1103 | reg |= 0x4000; | |
1104 | ||
1105 | codec->codec_write(codec, AC97_SPDIF_CONTROL, reg); | |
1106 | ||
1107 | reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); | |
1108 | reg &= (AC97_EA_SLOT_MASK); | |
1109 | reg |= AC97_EA_VRA | AC97_EA_SPDIF | slots; | |
1110 | codec->codec_write(codec, AC97_EXTENDED_STATUS, reg); | |
1111 | ||
1112 | reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); | |
1113 | if(!(reg & 0x0400)) | |
1114 | { | |
1115 | codec->codec_write(codec, AC97_EXTENDED_STATUS, reg & ~ AC97_EA_SPDIF); | |
1116 | return -EINVAL; | |
1117 | } | |
1118 | return 0; | |
1119 | } | |
1120 | ||
1121 | /* | |
1122 | * Crystal digital audio control (CS4299) | |
1123 | */ | |
1124 | ||
1125 | static int crystal_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) | |
1126 | { | |
1127 | u16 cv; | |
1128 | ||
1129 | if(mode & AUDIO_DIGITAL) | |
1130 | return -EINVAL; | |
1131 | ||
1132 | switch(rate) | |
1133 | { | |
1134 | case 0: cv = 0x0; break; /* SPEN off */ | |
1135 | case 48000: cv = 0x8004; break; /* 48KHz digital */ | |
1136 | case 44100: cv = 0x8104; break; /* 44.1KHz digital */ | |
1137 | case 32768: /* 32Khz */ | |
1138 | default: | |
1139 | return -EINVAL; | |
1140 | } | |
1141 | codec->codec_write(codec, 0x68, cv); | |
1142 | return 0; | |
1143 | } | |
1144 | ||
1145 | /* | |
1146 | * CMedia digital audio control | |
1147 | * Needs more work. | |
1148 | */ | |
1149 | ||
1150 | static int cmedia_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) | |
1151 | { | |
1152 | u16 cv; | |
1153 | ||
1154 | if(mode & AUDIO_DIGITAL) | |
1155 | return -EINVAL; | |
1156 | ||
1157 | switch(rate) | |
1158 | { | |
1159 | case 0: cv = 0x0001; break; /* SPEN off */ | |
1160 | case 48000: cv = 0x0009; break; /* 48KHz digital */ | |
1161 | default: | |
1162 | return -EINVAL; | |
1163 | } | |
1164 | codec->codec_write(codec, 0x2A, 0x05c4); | |
1165 | codec->codec_write(codec, 0x6C, cv); | |
1166 | ||
1167 | /* Switch on mix to surround */ | |
1168 | cv = codec->codec_read(codec, 0x64); | |
1169 | cv &= ~0x0200; | |
1170 | if(mode) | |
1171 | cv |= 0x0200; | |
1172 | codec->codec_write(codec, 0x64, cv); | |
1173 | return 0; | |
1174 | } | |
1175 | ||
1176 | ||
1177 | /* copied from drivers/sound/maestro.c */ | |
1178 | #if 0 /* there has been 1 person on the planet with a pt101 that we | |
1179 | know of. If they care, they can put this back in :) */ | |
1180 | static int pt101_init(struct ac97_codec * codec) | |
1181 | { | |
1182 | printk(KERN_INFO "ac97_codec: PT101 Codec detected, initializing but _not_ installing mixer device.\n"); | |
1183 | /* who knows.. */ | |
1184 | codec->codec_write(codec, 0x2A, 0x0001); | |
1185 | codec->codec_write(codec, 0x2C, 0x0000); | |
1186 | codec->codec_write(codec, 0x2C, 0xFFFF); | |
1187 | codec->codec_write(codec, 0x10, 0x9F1F); | |
1188 | codec->codec_write(codec, 0x12, 0x0808); | |
1189 | codec->codec_write(codec, 0x14, 0x9F1F); | |
1190 | codec->codec_write(codec, 0x16, 0x9F1F); | |
1191 | codec->codec_write(codec, 0x18, 0x0404); | |
1192 | codec->codec_write(codec, 0x1A, 0x0000); | |
1193 | codec->codec_write(codec, 0x1C, 0x0000); | |
1194 | codec->codec_write(codec, 0x02, 0x0404); | |
1195 | codec->codec_write(codec, 0x04, 0x0808); | |
1196 | codec->codec_write(codec, 0x0C, 0x801F); | |
1197 | codec->codec_write(codec, 0x0E, 0x801F); | |
1198 | return 0; | |
1199 | } | |
1200 | #endif | |
1201 | ||
1202 | ||
1da177e4 LT |
1203 | EXPORT_SYMBOL(ac97_probe_codec); |
1204 | ||
d6e4218e AB |
1205 | MODULE_LICENSE("GPL"); |
1206 |