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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 | * | |
631dd1a8 JM |
24 | * The Intel Audio Codec '97 specification is available at: |
25 | * http://download.intel.com/support/motherboards/desktop/sb/ac97_r23.pdf | |
1da177e4 LT |
26 | * |
27 | ************************************************************************** | |
28 | * | |
29 | * History | |
d331124d | 30 | * May 02, 2003 Liam Girdwood <lrg@slimlogic.co.uk> |
25985edc | 31 | * Removed non existent WM9700 |
1da177e4 LT |
32 | * Added support for WM9705, WM9708, WM9709, WM9710, WM9711 |
33 | * WM9712 and WM9717 | |
34 | * Mar 28, 2002 Randolph Bentson <bentson@holmsjoen.com> | |
35 | * corrections to support WM9707 in ViewPad 1000 | |
36 | * v0.4 Mar 15 2000 Ollie Lho | |
37 | * dual codecs support verified with 4 channels output | |
38 | * v0.3 Feb 22 2000 Ollie Lho | |
39 | * bug fix for record mask setting | |
40 | * v0.2 Feb 10 2000 Ollie Lho | |
41 | * add ac97_read_proc for /proc/driver/{vendor}/ac97 | |
42 | * v0.1 Jan 14 2000 Ollie Lho <ollie@sis.com.tw> | |
43 | * Isolated from trident.c to support multiple ac97 codec | |
44 | */ | |
45 | #include <linux/module.h> | |
46 | #include <linux/kernel.h> | |
47 | #include <linux/slab.h> | |
48 | #include <linux/string.h> | |
49 | #include <linux/errno.h> | |
50 | #include <linux/bitops.h> | |
51 | #include <linux/delay.h> | |
52 | #include <linux/pci.h> | |
53 | #include <linux/ac97_codec.h> | |
54 | #include <asm/uaccess.h> | |
f82945df | 55 | #include <linux/mutex.h> |
1da177e4 LT |
56 | |
57 | #define CODEC_ID_BUFSZ 14 | |
58 | ||
59 | static int ac97_read_mixer(struct ac97_codec *codec, int oss_channel); | |
60 | static void ac97_write_mixer(struct ac97_codec *codec, int oss_channel, | |
61 | unsigned int left, unsigned int right); | |
62 | static void ac97_set_mixer(struct ac97_codec *codec, unsigned int oss_mixer, unsigned int val ); | |
63 | static int ac97_recmask_io(struct ac97_codec *codec, int rw, int mask); | |
64 | static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg); | |
65 | ||
66 | static int ac97_init_mixer(struct ac97_codec *codec); | |
67 | ||
68 | static int wolfson_init03(struct ac97_codec * codec); | |
69 | static int wolfson_init04(struct ac97_codec * codec); | |
70 | static int wolfson_init05(struct ac97_codec * codec); | |
71 | static int wolfson_init11(struct ac97_codec * codec); | |
72 | static int wolfson_init13(struct ac97_codec * codec); | |
73 | static int tritech_init(struct ac97_codec * codec); | |
74 | static int tritech_maestro_init(struct ac97_codec * codec); | |
75 | static int sigmatel_9708_init(struct ac97_codec *codec); | |
76 | static int sigmatel_9721_init(struct ac97_codec *codec); | |
77 | static int sigmatel_9744_init(struct ac97_codec *codec); | |
78 | static int ad1886_init(struct ac97_codec *codec); | |
79 | static int eapd_control(struct ac97_codec *codec, int); | |
80 | static int crystal_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); | |
81 | static int cmedia_init(struct ac97_codec * codec); | |
82 | static int cmedia_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); | |
83 | static int generic_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); | |
84 | ||
85 | ||
86 | /* | |
87 | * AC97 operations. | |
88 | * | |
89 | * If you are adding a codec then you should be able to use | |
90 | * eapd_ops - any codec that supports EAPD amp control (most) | |
91 | * null_ops - any ancient codec that supports nothing | |
92 | * | |
93 | * The three functions are | |
94 | * init - used for non AC97 standard initialisation | |
95 | * amplifier - used to do amplifier control (1=on 0=off) | |
96 | * digital - switch to digital modes (0 = analog) | |
97 | * | |
98 | * Not all codecs support all features, not all drivers use all the | |
99 | * operations yet | |
100 | */ | |
101 | ||
102 | static struct ac97_ops null_ops = { NULL, NULL, NULL }; | |
103 | static struct ac97_ops default_ops = { NULL, eapd_control, NULL }; | |
104 | static struct ac97_ops default_digital_ops = { NULL, eapd_control, generic_digital_control}; | |
105 | static struct ac97_ops wolfson_ops03 = { wolfson_init03, NULL, NULL }; | |
106 | static struct ac97_ops wolfson_ops04 = { wolfson_init04, NULL, NULL }; | |
107 | static struct ac97_ops wolfson_ops05 = { wolfson_init05, NULL, NULL }; | |
108 | static struct ac97_ops wolfson_ops11 = { wolfson_init11, NULL, NULL }; | |
109 | static struct ac97_ops wolfson_ops13 = { wolfson_init13, NULL, NULL }; | |
110 | static struct ac97_ops tritech_ops = { tritech_init, NULL, NULL }; | |
111 | static struct ac97_ops tritech_m_ops = { tritech_maestro_init, NULL, NULL }; | |
112 | static struct ac97_ops sigmatel_9708_ops = { sigmatel_9708_init, NULL, NULL }; | |
113 | static struct ac97_ops sigmatel_9721_ops = { sigmatel_9721_init, NULL, NULL }; | |
114 | static struct ac97_ops sigmatel_9744_ops = { sigmatel_9744_init, NULL, NULL }; | |
115 | static struct ac97_ops crystal_digital_ops = { NULL, eapd_control, crystal_digital_control }; | |
116 | static struct ac97_ops ad1886_ops = { ad1886_init, eapd_control, NULL }; | |
117 | static struct ac97_ops cmedia_ops = { NULL, eapd_control, NULL}; | |
118 | static struct ac97_ops cmedia_digital_ops = { cmedia_init, eapd_control, cmedia_digital_control}; | |
119 | ||
120 | /* sorted by vendor/device id */ | |
121 | static const struct { | |
122 | u32 id; | |
123 | char *name; | |
124 | struct ac97_ops *ops; | |
125 | int flags; | |
126 | } ac97_codec_ids[] = { | |
127 | {0x41445303, "Analog Devices AD1819", &null_ops}, | |
128 | {0x41445340, "Analog Devices AD1881", &null_ops}, | |
129 | {0x41445348, "Analog Devices AD1881A", &null_ops}, | |
130 | {0x41445360, "Analog Devices AD1885", &default_ops}, | |
131 | {0x41445361, "Analog Devices AD1886", &ad1886_ops}, | |
132 | {0x41445370, "Analog Devices AD1981", &null_ops}, | |
133 | {0x41445372, "Analog Devices AD1981A", &null_ops}, | |
134 | {0x41445374, "Analog Devices AD1981B", &null_ops}, | |
135 | {0x41445460, "Analog Devices AD1885", &default_ops}, | |
136 | {0x41445461, "Analog Devices AD1886", &ad1886_ops}, | |
137 | {0x414B4D00, "Asahi Kasei AK4540", &null_ops}, | |
138 | {0x414B4D01, "Asahi Kasei AK4542", &null_ops}, | |
139 | {0x414B4D02, "Asahi Kasei AK4543", &null_ops}, | |
140 | {0x414C4326, "ALC100P", &null_ops}, | |
141 | {0x414C4710, "ALC200/200P", &null_ops}, | |
142 | {0x414C4720, "ALC650", &default_digital_ops}, | |
143 | {0x434D4941, "CMedia", &cmedia_ops, AC97_NO_PCM_VOLUME }, | |
144 | {0x434D4942, "CMedia", &cmedia_ops, AC97_NO_PCM_VOLUME }, | |
145 | {0x434D4961, "CMedia", &cmedia_digital_ops, AC97_NO_PCM_VOLUME }, | |
146 | {0x43525900, "Cirrus Logic CS4297", &default_ops}, | |
147 | {0x43525903, "Cirrus Logic CS4297", &default_ops}, | |
148 | {0x43525913, "Cirrus Logic CS4297A rev A", &default_ops}, | |
149 | {0x43525914, "Cirrus Logic CS4297A rev B", &default_ops}, | |
150 | {0x43525923, "Cirrus Logic CS4298", &null_ops}, | |
151 | {0x4352592B, "Cirrus Logic CS4294", &null_ops}, | |
152 | {0x4352592D, "Cirrus Logic CS4294", &null_ops}, | |
153 | {0x43525931, "Cirrus Logic CS4299 rev A", &crystal_digital_ops}, | |
154 | {0x43525933, "Cirrus Logic CS4299 rev C", &crystal_digital_ops}, | |
155 | {0x43525934, "Cirrus Logic CS4299 rev D", &crystal_digital_ops}, | |
becf3aec | 156 | {0x43585430, "CXT48", &default_ops, AC97_DELUDED_MODEM }, |
1da177e4 LT |
157 | {0x43585442, "CXT66", &default_ops, AC97_DELUDED_MODEM }, |
158 | {0x44543031, "Diamond Technology DT0893", &default_ops}, | |
159 | {0x45838308, "ESS Allegro ES1988", &null_ops}, | |
160 | {0x49434511, "ICE1232", &null_ops}, /* I hope --jk */ | |
161 | {0x4e534331, "National Semiconductor LM4549", &null_ops}, | |
162 | {0x53494c22, "Silicon Laboratory Si3036", &null_ops}, | |
163 | {0x53494c23, "Silicon Laboratory Si3038", &null_ops}, | |
164 | {0x545200FF, "TriTech TR?????", &tritech_m_ops}, | |
165 | {0x54524102, "TriTech TR28022", &null_ops}, | |
166 | {0x54524103, "TriTech TR28023", &null_ops}, | |
167 | {0x54524106, "TriTech TR28026", &null_ops}, | |
168 | {0x54524108, "TriTech TR28028", &tritech_ops}, | |
169 | {0x54524123, "TriTech TR A5", &null_ops}, | |
170 | {0x574D4C03, "Wolfson WM9703/07/08/17", &wolfson_ops03}, | |
171 | {0x574D4C04, "Wolfson WM9704M/WM9704Q", &wolfson_ops04}, | |
172 | {0x574D4C05, "Wolfson WM9705/WM9710", &wolfson_ops05}, | |
173 | {0x574D4C09, "Wolfson WM9709", &null_ops}, | |
174 | {0x574D4C12, "Wolfson WM9711/9712", &wolfson_ops11}, | |
175 | {0x574D4C13, "Wolfson WM9713", &wolfson_ops13, AC97_DEFAULT_POWER_OFF}, | |
176 | {0x83847600, "SigmaTel STAC????", &null_ops}, | |
177 | {0x83847604, "SigmaTel STAC9701/3/4/5", &null_ops}, | |
178 | {0x83847605, "SigmaTel STAC9704", &null_ops}, | |
179 | {0x83847608, "SigmaTel STAC9708", &sigmatel_9708_ops}, | |
180 | {0x83847609, "SigmaTel STAC9721/23", &sigmatel_9721_ops}, | |
181 | {0x83847644, "SigmaTel STAC9744/45", &sigmatel_9744_ops}, | |
182 | {0x83847652, "SigmaTel STAC9752/53", &default_ops}, | |
183 | {0x83847656, "SigmaTel STAC9756/57", &sigmatel_9744_ops}, | |
184 | {0x83847666, "SigmaTel STAC9750T", &sigmatel_9744_ops}, | |
185 | {0x83847684, "SigmaTel STAC9783/84?", &null_ops}, | |
186 | {0x57454301, "Winbond 83971D", &null_ops}, | |
187 | }; | |
188 | ||
1da177e4 LT |
189 | /* this table has default mixer values for all OSS mixers. */ |
190 | static struct mixer_defaults { | |
191 | int mixer; | |
192 | unsigned int value; | |
193 | } mixer_defaults[SOUND_MIXER_NRDEVICES] = { | |
194 | /* all values 0 -> 100 in bytes */ | |
195 | {SOUND_MIXER_VOLUME, 0x4343}, | |
196 | {SOUND_MIXER_BASS, 0x4343}, | |
197 | {SOUND_MIXER_TREBLE, 0x4343}, | |
198 | {SOUND_MIXER_PCM, 0x4343}, | |
199 | {SOUND_MIXER_SPEAKER, 0x4343}, | |
200 | {SOUND_MIXER_LINE, 0x4343}, | |
201 | {SOUND_MIXER_MIC, 0x0000}, | |
202 | {SOUND_MIXER_CD, 0x4343}, | |
203 | {SOUND_MIXER_ALTPCM, 0x4343}, | |
204 | {SOUND_MIXER_IGAIN, 0x4343}, | |
205 | {SOUND_MIXER_LINE1, 0x4343}, | |
206 | {SOUND_MIXER_PHONEIN, 0x4343}, | |
207 | {SOUND_MIXER_PHONEOUT, 0x4343}, | |
208 | {SOUND_MIXER_VIDEO, 0x4343}, | |
209 | {-1,0} | |
210 | }; | |
211 | ||
212 | /* table to scale scale from OSS mixer value to AC97 mixer register value */ | |
213 | static struct ac97_mixer_hw { | |
214 | unsigned char offset; | |
215 | int scale; | |
216 | } ac97_hw[SOUND_MIXER_NRDEVICES]= { | |
217 | [SOUND_MIXER_VOLUME] = {AC97_MASTER_VOL_STEREO,64}, | |
218 | [SOUND_MIXER_BASS] = {AC97_MASTER_TONE, 16}, | |
219 | [SOUND_MIXER_TREBLE] = {AC97_MASTER_TONE, 16}, | |
220 | [SOUND_MIXER_PCM] = {AC97_PCMOUT_VOL, 32}, | |
221 | [SOUND_MIXER_SPEAKER] = {AC97_PCBEEP_VOL, 16}, | |
222 | [SOUND_MIXER_LINE] = {AC97_LINEIN_VOL, 32}, | |
223 | [SOUND_MIXER_MIC] = {AC97_MIC_VOL, 32}, | |
224 | [SOUND_MIXER_CD] = {AC97_CD_VOL, 32}, | |
225 | [SOUND_MIXER_ALTPCM] = {AC97_HEADPHONE_VOL, 64}, | |
226 | [SOUND_MIXER_IGAIN] = {AC97_RECORD_GAIN, 16}, | |
227 | [SOUND_MIXER_LINE1] = {AC97_AUX_VOL, 32}, | |
228 | [SOUND_MIXER_PHONEIN] = {AC97_PHONE_VOL, 32}, | |
229 | [SOUND_MIXER_PHONEOUT] = {AC97_MASTER_VOL_MONO, 64}, | |
230 | [SOUND_MIXER_VIDEO] = {AC97_VIDEO_VOL, 32}, | |
231 | }; | |
232 | ||
233 | /* the following tables allow us to go from OSS <-> ac97 quickly. */ | |
234 | enum ac97_recsettings { | |
235 | AC97_REC_MIC=0, | |
236 | AC97_REC_CD, | |
237 | AC97_REC_VIDEO, | |
238 | AC97_REC_AUX, | |
239 | AC97_REC_LINE, | |
240 | AC97_REC_STEREO, /* combination of all enabled outputs.. */ | |
241 | AC97_REC_MONO, /*.. or the mono equivalent */ | |
242 | AC97_REC_PHONE | |
243 | }; | |
244 | ||
245 | static const unsigned int ac97_rm2oss[] = { | |
246 | [AC97_REC_MIC] = SOUND_MIXER_MIC, | |
247 | [AC97_REC_CD] = SOUND_MIXER_CD, | |
248 | [AC97_REC_VIDEO] = SOUND_MIXER_VIDEO, | |
249 | [AC97_REC_AUX] = SOUND_MIXER_LINE1, | |
250 | [AC97_REC_LINE] = SOUND_MIXER_LINE, | |
251 | [AC97_REC_STEREO]= SOUND_MIXER_IGAIN, | |
252 | [AC97_REC_PHONE] = SOUND_MIXER_PHONEIN | |
253 | }; | |
254 | ||
255 | /* indexed by bit position */ | |
256 | static const unsigned int ac97_oss_rm[] = { | |
257 | [SOUND_MIXER_MIC] = AC97_REC_MIC, | |
258 | [SOUND_MIXER_CD] = AC97_REC_CD, | |
259 | [SOUND_MIXER_VIDEO] = AC97_REC_VIDEO, | |
260 | [SOUND_MIXER_LINE1] = AC97_REC_AUX, | |
261 | [SOUND_MIXER_LINE] = AC97_REC_LINE, | |
262 | [SOUND_MIXER_IGAIN] = AC97_REC_STEREO, | |
263 | [SOUND_MIXER_PHONEIN] = AC97_REC_PHONE | |
264 | }; | |
265 | ||
266 | static LIST_HEAD(codecs); | |
267 | static LIST_HEAD(codec_drivers); | |
f82945df | 268 | static DEFINE_MUTEX(codec_mutex); |
1da177e4 LT |
269 | |
270 | /* reads the given OSS mixer from the ac97 the caller must have insured that the ac97 knows | |
271 | about that given mixer, and should be holding a spinlock for the card */ | |
272 | static int ac97_read_mixer(struct ac97_codec *codec, int oss_channel) | |
273 | { | |
274 | u16 val; | |
275 | int ret = 0; | |
276 | int scale; | |
277 | struct ac97_mixer_hw *mh = &ac97_hw[oss_channel]; | |
278 | ||
279 | val = codec->codec_read(codec , mh->offset); | |
280 | ||
281 | if (val & AC97_MUTE) { | |
282 | ret = 0; | |
283 | } else if (AC97_STEREO_MASK & (1 << oss_channel)) { | |
284 | /* nice stereo mixers .. */ | |
285 | int left,right; | |
286 | ||
287 | left = (val >> 8) & 0x7f; | |
288 | right = val & 0x7f; | |
289 | ||
290 | if (oss_channel == SOUND_MIXER_IGAIN) { | |
291 | right = (right * 100) / mh->scale; | |
292 | left = (left * 100) / mh->scale; | |
293 | } else { | |
294 | /* these may have 5 or 6 bit resolution */ | |
295 | if(oss_channel == SOUND_MIXER_VOLUME || oss_channel == SOUND_MIXER_ALTPCM) | |
296 | scale = (1 << codec->bit_resolution); | |
297 | else | |
298 | scale = mh->scale; | |
299 | ||
300 | right = 100 - ((right * 100) / scale); | |
301 | left = 100 - ((left * 100) / scale); | |
302 | } | |
303 | ret = left | (right << 8); | |
304 | } else if (oss_channel == SOUND_MIXER_SPEAKER) { | |
305 | ret = 100 - ((((val & 0x1e)>>1) * 100) / mh->scale); | |
306 | } else if (oss_channel == SOUND_MIXER_PHONEIN) { | |
307 | ret = 100 - (((val & 0x1f) * 100) / mh->scale); | |
308 | } else if (oss_channel == SOUND_MIXER_PHONEOUT) { | |
309 | scale = (1 << codec->bit_resolution); | |
310 | ret = 100 - (((val & 0x1f) * 100) / scale); | |
311 | } else if (oss_channel == SOUND_MIXER_MIC) { | |
312 | ret = 100 - (((val & 0x1f) * 100) / mh->scale); | |
313 | /* the low bit is optional in the tone sliders and masking | |
314 | it lets us avoid the 0xf 'bypass'.. */ | |
315 | } else if (oss_channel == SOUND_MIXER_BASS) { | |
316 | ret = 100 - ((((val >> 8) & 0xe) * 100) / mh->scale); | |
317 | } else if (oss_channel == SOUND_MIXER_TREBLE) { | |
318 | ret = 100 - (((val & 0xe) * 100) / mh->scale); | |
319 | } | |
320 | ||
321 | #ifdef DEBUG | |
322 | printk("ac97_codec: read OSS mixer %2d (%s ac97 register 0x%02x), " | |
323 | "0x%04x -> 0x%04x\n", | |
324 | oss_channel, codec->id ? "Secondary" : "Primary", | |
325 | mh->offset, val, ret); | |
326 | #endif | |
327 | ||
328 | return ret; | |
329 | } | |
330 | ||
331 | /* write the OSS encoded volume to the given OSS encoded mixer, again caller's job to | |
332 | make sure all is well in arg land, call with spinlock held */ | |
333 | static void ac97_write_mixer(struct ac97_codec *codec, int oss_channel, | |
334 | unsigned int left, unsigned int right) | |
335 | { | |
336 | u16 val = 0; | |
337 | int scale; | |
338 | struct ac97_mixer_hw *mh = &ac97_hw[oss_channel]; | |
339 | ||
340 | #ifdef DEBUG | |
341 | printk("ac97_codec: wrote OSS mixer %2d (%s ac97 register 0x%02x), " | |
342 | "left vol:%2d, right vol:%2d:", | |
343 | oss_channel, codec->id ? "Secondary" : "Primary", | |
344 | mh->offset, left, right); | |
345 | #endif | |
346 | ||
347 | if (AC97_STEREO_MASK & (1 << oss_channel)) { | |
348 | /* stereo mixers */ | |
349 | if (left == 0 && right == 0) { | |
350 | val = AC97_MUTE; | |
351 | } else { | |
352 | if (oss_channel == SOUND_MIXER_IGAIN) { | |
353 | right = (right * mh->scale) / 100; | |
354 | left = (left * mh->scale) / 100; | |
355 | if (right >= mh->scale) | |
356 | right = mh->scale-1; | |
357 | if (left >= mh->scale) | |
358 | left = mh->scale-1; | |
359 | } else { | |
360 | /* these may have 5 or 6 bit resolution */ | |
361 | if (oss_channel == SOUND_MIXER_VOLUME || | |
362 | oss_channel == SOUND_MIXER_ALTPCM) | |
363 | scale = (1 << codec->bit_resolution); | |
364 | else | |
365 | scale = mh->scale; | |
366 | ||
367 | right = ((100 - right) * scale) / 100; | |
368 | left = ((100 - left) * scale) / 100; | |
369 | if (right >= scale) | |
370 | right = scale-1; | |
371 | if (left >= scale) | |
372 | left = scale-1; | |
373 | } | |
374 | val = (left << 8) | right; | |
375 | } | |
376 | } else if (oss_channel == SOUND_MIXER_BASS) { | |
377 | val = codec->codec_read(codec , mh->offset) & ~0x0f00; | |
378 | left = ((100 - left) * mh->scale) / 100; | |
379 | if (left >= mh->scale) | |
380 | left = mh->scale-1; | |
381 | val |= (left << 8) & 0x0e00; | |
382 | } else if (oss_channel == SOUND_MIXER_TREBLE) { | |
383 | val = codec->codec_read(codec , mh->offset) & ~0x000f; | |
384 | left = ((100 - left) * mh->scale) / 100; | |
385 | if (left >= mh->scale) | |
386 | left = mh->scale-1; | |
387 | val |= left & 0x000e; | |
388 | } else if(left == 0) { | |
389 | val = AC97_MUTE; | |
390 | } else if (oss_channel == SOUND_MIXER_SPEAKER) { | |
391 | left = ((100 - left) * mh->scale) / 100; | |
392 | if (left >= mh->scale) | |
393 | left = mh->scale-1; | |
394 | val = left << 1; | |
395 | } else if (oss_channel == SOUND_MIXER_PHONEIN) { | |
396 | left = ((100 - left) * mh->scale) / 100; | |
397 | if (left >= mh->scale) | |
398 | left = mh->scale-1; | |
399 | val = left; | |
400 | } else if (oss_channel == SOUND_MIXER_PHONEOUT) { | |
401 | scale = (1 << codec->bit_resolution); | |
402 | left = ((100 - left) * scale) / 100; | |
403 | if (left >= mh->scale) | |
404 | left = mh->scale-1; | |
405 | val = left; | |
406 | } else if (oss_channel == SOUND_MIXER_MIC) { | |
407 | val = codec->codec_read(codec , mh->offset) & ~0x801f; | |
408 | left = ((100 - left) * mh->scale) / 100; | |
409 | if (left >= mh->scale) | |
410 | left = mh->scale-1; | |
411 | val |= left; | |
412 | /* the low bit is optional in the tone sliders and masking | |
413 | it lets us avoid the 0xf 'bypass'.. */ | |
414 | } | |
415 | #ifdef DEBUG | |
416 | printk(" 0x%04x", val); | |
417 | #endif | |
418 | ||
419 | codec->codec_write(codec, mh->offset, val); | |
420 | ||
421 | #ifdef DEBUG | |
422 | val = codec->codec_read(codec, mh->offset); | |
423 | printk(" -> 0x%04x\n", val); | |
424 | #endif | |
425 | } | |
426 | ||
427 | /* a thin wrapper for write_mixer */ | |
428 | static void ac97_set_mixer(struct ac97_codec *codec, unsigned int oss_mixer, unsigned int val ) | |
429 | { | |
430 | unsigned int left,right; | |
431 | ||
432 | /* cleanse input a little */ | |
433 | right = ((val >> 8) & 0xff) ; | |
434 | left = (val & 0xff) ; | |
435 | ||
436 | if (right > 100) right = 100; | |
437 | if (left > 100) left = 100; | |
438 | ||
439 | codec->mixer_state[oss_mixer] = (right << 8) | left; | |
440 | codec->write_mixer(codec, oss_mixer, left, right); | |
441 | } | |
442 | ||
443 | /* read or write the recmask, the ac97 can really have left and right recording | |
25985edc | 444 | inputs independently set, but OSS doesn't seem to want us to express that to |
1da177e4 LT |
445 | the user. the caller guarantees that we have a supported bit set, and they |
446 | must be holding the card's spinlock */ | |
447 | static int ac97_recmask_io(struct ac97_codec *codec, int rw, int mask) | |
448 | { | |
449 | unsigned int val; | |
450 | ||
451 | if (rw) { | |
452 | /* read it from the card */ | |
453 | val = codec->codec_read(codec, AC97_RECORD_SELECT); | |
454 | #ifdef DEBUG | |
455 | printk("ac97_codec: ac97 recmask to set to 0x%04x\n", val); | |
456 | #endif | |
457 | return (1 << ac97_rm2oss[val & 0x07]); | |
458 | } | |
459 | ||
460 | /* else, write the first set in the mask as the | |
461 | output */ | |
462 | /* clear out current set value first (AC97 supports only 1 input!) */ | |
463 | val = (1 << ac97_rm2oss[codec->codec_read(codec, AC97_RECORD_SELECT) & 0x07]); | |
464 | if (mask != val) | |
465 | mask &= ~val; | |
466 | ||
467 | val = ffs(mask); | |
468 | val = ac97_oss_rm[val-1]; | |
469 | val |= val << 8; /* set both channels */ | |
470 | ||
471 | #ifdef DEBUG | |
472 | printk("ac97_codec: setting ac97 recmask to 0x%04x\n", val); | |
473 | #endif | |
474 | ||
475 | codec->codec_write(codec, AC97_RECORD_SELECT, val); | |
476 | ||
477 | return 0; | |
478 | }; | |
479 | ||
480 | static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg) | |
481 | { | |
482 | int i, val = 0; | |
483 | ||
484 | if (cmd == SOUND_MIXER_INFO) { | |
485 | mixer_info info; | |
486 | memset(&info, 0, sizeof(info)); | |
487 | strlcpy(info.id, codec->name, sizeof(info.id)); | |
488 | strlcpy(info.name, codec->name, sizeof(info.name)); | |
489 | info.modify_counter = codec->modcnt; | |
490 | if (copy_to_user((void __user *)arg, &info, sizeof(info))) | |
491 | return -EFAULT; | |
492 | return 0; | |
493 | } | |
494 | if (cmd == SOUND_OLD_MIXER_INFO) { | |
495 | _old_mixer_info info; | |
496 | memset(&info, 0, sizeof(info)); | |
497 | strlcpy(info.id, codec->name, sizeof(info.id)); | |
498 | strlcpy(info.name, codec->name, sizeof(info.name)); | |
499 | if (copy_to_user((void __user *)arg, &info, sizeof(info))) | |
500 | return -EFAULT; | |
501 | return 0; | |
502 | } | |
503 | ||
504 | if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int)) | |
505 | return -EINVAL; | |
506 | ||
507 | if (cmd == OSS_GETVERSION) | |
508 | return put_user(SOUND_VERSION, (int __user *)arg); | |
509 | ||
510 | if (_SIOC_DIR(cmd) == _SIOC_READ) { | |
511 | switch (_IOC_NR(cmd)) { | |
512 | case SOUND_MIXER_RECSRC: /* give them the current record source */ | |
513 | if (!codec->recmask_io) { | |
514 | val = 0; | |
515 | } else { | |
516 | val = codec->recmask_io(codec, 1, 0); | |
517 | } | |
518 | break; | |
519 | ||
520 | case SOUND_MIXER_DEVMASK: /* give them the supported mixers */ | |
521 | val = codec->supported_mixers; | |
522 | break; | |
523 | ||
524 | case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */ | |
525 | val = codec->record_sources; | |
526 | break; | |
527 | ||
528 | case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */ | |
529 | val = codec->stereo_mixers; | |
530 | break; | |
531 | ||
532 | case SOUND_MIXER_CAPS: | |
533 | val = SOUND_CAP_EXCL_INPUT; | |
534 | break; | |
535 | ||
536 | default: /* read a specific mixer */ | |
537 | i = _IOC_NR(cmd); | |
538 | ||
539 | if (!supported_mixer(codec, i)) | |
540 | return -EINVAL; | |
541 | ||
542 | /* do we ever want to touch the hardware? */ | |
543 | /* val = codec->read_mixer(codec, i); */ | |
544 | val = codec->mixer_state[i]; | |
545 | break; | |
546 | } | |
547 | return put_user(val, (int __user *)arg); | |
548 | } | |
549 | ||
550 | if (_SIOC_DIR(cmd) == (_SIOC_WRITE|_SIOC_READ)) { | |
551 | codec->modcnt++; | |
552 | if (get_user(val, (int __user *)arg)) | |
553 | return -EFAULT; | |
554 | ||
555 | switch (_IOC_NR(cmd)) { | |
556 | case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */ | |
557 | if (!codec->recmask_io) return -EINVAL; | |
558 | if (!val) return 0; | |
559 | if (!(val &= codec->record_sources)) return -EINVAL; | |
560 | ||
561 | codec->recmask_io(codec, 0, val); | |
562 | ||
563 | return 0; | |
564 | default: /* write a specific mixer */ | |
565 | i = _IOC_NR(cmd); | |
566 | ||
567 | if (!supported_mixer(codec, i)) | |
568 | return -EINVAL; | |
569 | ||
570 | ac97_set_mixer(codec, i, val); | |
571 | ||
572 | return 0; | |
573 | } | |
574 | } | |
575 | return -EINVAL; | |
576 | } | |
577 | ||
1da177e4 LT |
578 | /** |
579 | * codec_id - Turn id1/id2 into a PnP string | |
580 | * @id1: Vendor ID1 | |
581 | * @id2: Vendor ID2 | |
582 | * @buf: CODEC_ID_BUFSZ byte buffer | |
583 | * | |
584 | * Fills buf with a zero terminated PnP ident string for the id1/id2 | |
585 | * pair. For convenience the return is the passed in buffer pointer. | |
586 | */ | |
587 | ||
588 | static char *codec_id(u16 id1, u16 id2, char *buf) | |
589 | { | |
590 | if(id1&0x8080) { | |
591 | snprintf(buf, CODEC_ID_BUFSZ, "0x%04x:0x%04x", id1, id2); | |
592 | } else { | |
593 | buf[0] = (id1 >> 8); | |
594 | buf[1] = (id1 & 0xFF); | |
595 | buf[2] = (id2 >> 8); | |
596 | snprintf(buf+3, CODEC_ID_BUFSZ - 3, "%d", id2&0xFF); | |
597 | } | |
598 | return buf; | |
599 | } | |
600 | ||
601 | /** | |
602 | * ac97_check_modem - Check if the Codec is a modem | |
603 | * @codec: codec to check | |
604 | * | |
605 | * Return true if the device is an AC97 1.0 or AC97 2.0 modem | |
606 | */ | |
607 | ||
608 | static int ac97_check_modem(struct ac97_codec *codec) | |
609 | { | |
610 | /* Check for an AC97 1.0 soft modem (ID1) */ | |
611 | if(codec->codec_read(codec, AC97_RESET) & 2) | |
612 | return 1; | |
613 | /* Check for an AC97 2.x soft modem */ | |
614 | codec->codec_write(codec, AC97_EXTENDED_MODEM_ID, 0L); | |
615 | if(codec->codec_read(codec, AC97_EXTENDED_MODEM_ID) & 1) | |
616 | return 1; | |
617 | return 0; | |
618 | } | |
619 | ||
620 | ||
621 | /** | |
622 | * ac97_alloc_codec - Allocate an AC97 codec | |
623 | * | |
624 | * Returns a new AC97 codec structure. AC97 codecs may become | |
625 | * refcounted soon so this interface is needed. Returns with | |
626 | * one reference taken. | |
627 | */ | |
628 | ||
629 | struct ac97_codec *ac97_alloc_codec(void) | |
630 | { | |
3159f06d | 631 | struct ac97_codec *codec = kzalloc(sizeof(struct ac97_codec), GFP_KERNEL); |
1da177e4 LT |
632 | if(!codec) |
633 | return NULL; | |
634 | ||
1da177e4 LT |
635 | spin_lock_init(&codec->lock); |
636 | INIT_LIST_HEAD(&codec->list); | |
637 | return codec; | |
638 | } | |
639 | ||
640 | EXPORT_SYMBOL(ac97_alloc_codec); | |
641 | ||
642 | /** | |
643 | * ac97_release_codec - Release an AC97 codec | |
644 | * @codec: codec to release | |
645 | * | |
646 | * Release an allocated AC97 codec. This will be refcounted in | |
647 | * time but for the moment is trivial. Calls the unregister | |
648 | * handler if the codec is now defunct. | |
649 | */ | |
650 | ||
651 | void ac97_release_codec(struct ac97_codec *codec) | |
652 | { | |
653 | /* Remove from the list first, we don't want to be | |
654 | "rediscovered" */ | |
f82945df | 655 | mutex_lock(&codec_mutex); |
1da177e4 | 656 | list_del(&codec->list); |
f82945df | 657 | mutex_unlock(&codec_mutex); |
1da177e4 LT |
658 | /* |
659 | * The driver needs to deal with internal | |
660 | * locking to avoid accidents here. | |
661 | */ | |
662 | if(codec->driver) | |
663 | codec->driver->remove(codec, codec->driver); | |
664 | kfree(codec); | |
665 | } | |
666 | ||
667 | EXPORT_SYMBOL(ac97_release_codec); | |
668 | ||
669 | /** | |
670 | * ac97_probe_codec - Initialize and setup AC97-compatible codec | |
671 | * @codec: (in/out) Kernel info for a single AC97 codec | |
672 | * | |
673 | * Reset the AC97 codec, then initialize the mixer and | |
674 | * the rest of the @codec structure. | |
675 | * | |
676 | * The codec_read and codec_write fields of @codec are | |
677 | * required to be setup and working when this function | |
678 | * is called. All other fields are set by this function. | |
679 | * | |
680 | * codec_wait field of @codec can optionally be provided | |
681 | * when calling this function. If codec_wait is not %NULL, | |
682 | * this function will call codec_wait any time it is | |
683 | * necessary to wait for the audio chip to reach the | |
684 | * codec-ready state. If codec_wait is %NULL, then | |
685 | * the default behavior is to call schedule_timeout. | |
686 | * Currently codec_wait is used to wait for AC97 codec | |
687 | * reset to complete. | |
688 | * | |
689 | * Some codecs will power down when a register reset is | |
690 | * performed. We now check for such codecs. | |
691 | * | |
692 | * Returns 1 (true) on success, or 0 (false) on failure. | |
693 | */ | |
694 | ||
695 | int ac97_probe_codec(struct ac97_codec *codec) | |
696 | { | |
697 | u16 id1, id2; | |
698 | u16 audio; | |
699 | int i; | |
700 | char cidbuf[CODEC_ID_BUFSZ]; | |
701 | u16 f; | |
702 | struct list_head *l; | |
703 | struct ac97_driver *d; | |
704 | ||
705 | /* wait for codec-ready state */ | |
706 | if (codec->codec_wait) | |
707 | codec->codec_wait(codec); | |
708 | else | |
709 | udelay(10); | |
710 | ||
711 | /* will the codec power down if register reset ? */ | |
712 | id1 = codec->codec_read(codec, AC97_VENDOR_ID1); | |
713 | id2 = codec->codec_read(codec, AC97_VENDOR_ID2); | |
714 | codec->name = NULL; | |
715 | codec->codec_ops = &null_ops; | |
716 | for (i = 0; i < ARRAY_SIZE(ac97_codec_ids); i++) { | |
717 | if (ac97_codec_ids[i].id == ((id1 << 16) | id2)) { | |
718 | codec->type = ac97_codec_ids[i].id; | |
719 | codec->name = ac97_codec_ids[i].name; | |
720 | codec->codec_ops = ac97_codec_ids[i].ops; | |
721 | codec->flags = ac97_codec_ids[i].flags; | |
722 | break; | |
723 | } | |
724 | } | |
725 | ||
726 | codec->model = (id1 << 16) | id2; | |
727 | if ((codec->flags & AC97_DEFAULT_POWER_OFF) == 0) { | |
728 | /* reset codec and wait for the ready bit before we continue */ | |
729 | codec->codec_write(codec, AC97_RESET, 0L); | |
730 | if (codec->codec_wait) | |
731 | codec->codec_wait(codec); | |
732 | else | |
733 | udelay(10); | |
734 | } | |
735 | ||
736 | /* probing AC97 codec, AC97 2.0 says that bit 15 of register 0x00 (reset) should | |
737 | * be read zero. | |
738 | * | |
739 | * FIXME: is the following comment outdated? -jgarzik | |
740 | * Probing of AC97 in this way is not reliable, it is not even SAFE !! | |
741 | */ | |
742 | if ((audio = codec->codec_read(codec, AC97_RESET)) & 0x8000) { | |
743 | printk(KERN_ERR "ac97_codec: %s ac97 codec not present\n", | |
744 | (codec->id & 0x2) ? (codec->id&1 ? "4th" : "Tertiary") | |
745 | : (codec->id&1 ? "Secondary": "Primary")); | |
746 | return 0; | |
747 | } | |
748 | ||
749 | /* probe for Modem Codec */ | |
750 | codec->modem = ac97_check_modem(codec); | |
751 | ||
752 | /* enable SPDIF */ | |
753 | f = codec->codec_read(codec, AC97_EXTENDED_STATUS); | |
754 | if((codec->codec_ops == &null_ops) && (f & 4)) | |
755 | codec->codec_ops = &default_digital_ops; | |
756 | ||
25985edc | 757 | /* A device which thinks its a modem but isn't */ |
1da177e4 LT |
758 | if(codec->flags & AC97_DELUDED_MODEM) |
759 | codec->modem = 0; | |
760 | ||
761 | if (codec->name == NULL) | |
762 | codec->name = "Unknown"; | |
763 | printk(KERN_INFO "ac97_codec: AC97 %s codec, id: %s (%s)\n", | |
764 | codec->modem ? "Modem" : (audio ? "Audio" : ""), | |
765 | codec_id(id1, id2, cidbuf), codec->name); | |
766 | ||
767 | if(!ac97_init_mixer(codec)) | |
768 | return 0; | |
769 | ||
770 | /* | |
771 | * Attach last so the caller can override the mixer | |
772 | * callbacks. | |
773 | */ | |
774 | ||
f82945df | 775 | mutex_lock(&codec_mutex); |
1da177e4 LT |
776 | list_add(&codec->list, &codecs); |
777 | ||
778 | list_for_each(l, &codec_drivers) { | |
779 | d = list_entry(l, struct ac97_driver, list); | |
780 | if ((codec->model ^ d->codec_id) & d->codec_mask) | |
781 | continue; | |
782 | if(d->probe(codec, d) == 0) | |
783 | { | |
784 | codec->driver = d; | |
785 | break; | |
786 | } | |
787 | } | |
788 | ||
f82945df | 789 | mutex_unlock(&codec_mutex); |
1da177e4 LT |
790 | return 1; |
791 | } | |
792 | ||
793 | static int ac97_init_mixer(struct ac97_codec *codec) | |
794 | { | |
795 | u16 cap; | |
796 | int i; | |
797 | ||
798 | cap = codec->codec_read(codec, AC97_RESET); | |
799 | ||
800 | /* mixer masks */ | |
801 | codec->supported_mixers = AC97_SUPPORTED_MASK; | |
802 | codec->stereo_mixers = AC97_STEREO_MASK; | |
803 | codec->record_sources = AC97_RECORD_MASK; | |
804 | if (!(cap & 0x04)) | |
805 | codec->supported_mixers &= ~(SOUND_MASK_BASS|SOUND_MASK_TREBLE); | |
806 | if (!(cap & 0x10)) | |
807 | codec->supported_mixers &= ~SOUND_MASK_ALTPCM; | |
808 | ||
809 | ||
810 | /* detect bit resolution */ | |
811 | codec->codec_write(codec, AC97_MASTER_VOL_STEREO, 0x2020); | |
812 | if(codec->codec_read(codec, AC97_MASTER_VOL_STEREO) == 0x2020) | |
813 | codec->bit_resolution = 6; | |
814 | else | |
815 | codec->bit_resolution = 5; | |
816 | ||
817 | /* generic OSS to AC97 wrapper */ | |
818 | codec->read_mixer = ac97_read_mixer; | |
819 | codec->write_mixer = ac97_write_mixer; | |
820 | codec->recmask_io = ac97_recmask_io; | |
821 | codec->mixer_ioctl = ac97_mixer_ioctl; | |
822 | ||
823 | /* initialize mixer channel volumes */ | |
824 | for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { | |
825 | struct mixer_defaults *md = &mixer_defaults[i]; | |
826 | if (md->mixer == -1) | |
827 | break; | |
828 | if (!supported_mixer(codec, md->mixer)) | |
829 | continue; | |
830 | ac97_set_mixer(codec, md->mixer, md->value); | |
831 | } | |
832 | ||
833 | /* codec specific initialization for 4-6 channel output or secondary codec stuff */ | |
834 | if (codec->codec_ops->init != NULL) { | |
835 | codec->codec_ops->init(codec); | |
836 | } | |
837 | ||
838 | /* | |
839 | * Volume is MUTE only on this device. We have to initialise | |
840 | * it but its useless beyond that. | |
841 | */ | |
842 | if(codec->flags & AC97_NO_PCM_VOLUME) | |
843 | { | |
844 | codec->supported_mixers &= ~SOUND_MASK_PCM; | |
845 | printk(KERN_WARNING "AC97 codec does not have proper volume support.\n"); | |
846 | } | |
847 | return 1; | |
848 | } | |
849 | ||
850 | #define AC97_SIGMATEL_ANALOG 0x6c /* Analog Special */ | |
851 | #define AC97_SIGMATEL_DAC2INVERT 0x6e | |
852 | #define AC97_SIGMATEL_BIAS1 0x70 | |
853 | #define AC97_SIGMATEL_BIAS2 0x72 | |
854 | #define AC97_SIGMATEL_MULTICHN 0x74 /* Multi-Channel programming */ | |
855 | #define AC97_SIGMATEL_CIC1 0x76 | |
856 | #define AC97_SIGMATEL_CIC2 0x78 | |
857 | ||
858 | ||
859 | static int sigmatel_9708_init(struct ac97_codec * codec) | |
860 | { | |
861 | u16 codec72, codec6c; | |
862 | ||
863 | codec72 = codec->codec_read(codec, AC97_SIGMATEL_BIAS2) & 0x8000; | |
864 | codec6c = codec->codec_read(codec, AC97_SIGMATEL_ANALOG); | |
865 | ||
866 | if ((codec72==0) && (codec6c==0)) { | |
867 | codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); | |
868 | codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x1000); | |
869 | codec->codec_write(codec, AC97_SIGMATEL_BIAS1, 0xabba); | |
870 | codec->codec_write(codec, AC97_SIGMATEL_BIAS2, 0x0007); | |
871 | } else if ((codec72==0x8000) && (codec6c==0)) { | |
872 | codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); | |
873 | codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x1001); | |
874 | codec->codec_write(codec, AC97_SIGMATEL_DAC2INVERT, 0x0008); | |
875 | } else if ((codec72==0x8000) && (codec6c==0x0080)) { | |
876 | /* nothing */ | |
877 | } | |
878 | codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x0000); | |
879 | return 0; | |
880 | } | |
881 | ||
882 | ||
883 | static int sigmatel_9721_init(struct ac97_codec * codec) | |
884 | { | |
885 | /* Only set up secondary codec */ | |
886 | if (codec->id == 0) | |
887 | return 0; | |
888 | ||
889 | codec->codec_write(codec, AC97_SURROUND_MASTER, 0L); | |
890 | ||
891 | /* initialize SigmaTel STAC9721/23 as secondary codec, decoding AC link | |
892 | sloc 3,4 = 0x01, slot 7,8 = 0x00, */ | |
893 | codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x00); | |
894 | ||
895 | /* we don't have the crystal when we are on an AMR card, so use | |
896 | BIT_CLK as our clock source. Write the magic word ABBA and read | |
897 | back to enable register 0x78 */ | |
898 | codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); | |
899 | codec->codec_read(codec, AC97_SIGMATEL_CIC1); | |
900 | ||
901 | /* sync all the clocks*/ | |
902 | codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x3802); | |
903 | ||
904 | return 0; | |
905 | } | |
906 | ||
907 | ||
908 | static int sigmatel_9744_init(struct ac97_codec * codec) | |
909 | { | |
910 | // patch for SigmaTel | |
911 | codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); | |
912 | codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x0000); // is this correct? --jk | |
913 | codec->codec_write(codec, AC97_SIGMATEL_BIAS1, 0xabba); | |
914 | codec->codec_write(codec, AC97_SIGMATEL_BIAS2, 0x0002); | |
915 | codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x0000); | |
916 | return 0; | |
917 | } | |
918 | ||
919 | static int cmedia_init(struct ac97_codec *codec) | |
920 | { | |
921 | /* Initialise the CMedia 9739 */ | |
922 | /* | |
923 | We could set various options here | |
924 | Register 0x20 bit 0x100 sets mic as center bass | |
925 | Also do multi_channel_ctrl &=~0x3000 |=0x1000 | |
926 | ||
927 | For now we set up the GPIO and PC beep | |
928 | */ | |
929 | ||
930 | u16 v; | |
931 | ||
932 | /* MIC */ | |
933 | codec->codec_write(codec, 0x64, 0x3000); | |
934 | v = codec->codec_read(codec, 0x64); | |
935 | v &= ~0x8000; | |
936 | codec->codec_write(codec, 0x64, v); | |
937 | codec->codec_write(codec, 0x70, 0x0100); | |
938 | codec->codec_write(codec, 0x72, 0x0020); | |
939 | return 0; | |
940 | } | |
941 | ||
942 | #define AC97_WM97XX_FMIXER_VOL 0x72 | |
943 | #define AC97_WM97XX_RMIXER_VOL 0x74 | |
944 | #define AC97_WM97XX_TEST 0x5a | |
945 | #define AC97_WM9704_RPCM_VOL 0x70 | |
946 | #define AC97_WM9711_OUT3VOL 0x16 | |
947 | ||
948 | static int wolfson_init03(struct ac97_codec * codec) | |
949 | { | |
950 | /* this is known to work for the ViewSonic ViewPad 1000 */ | |
951 | codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); | |
952 | codec->codec_write(codec, AC97_GENERAL_PURPOSE, 0x8000); | |
953 | return 0; | |
954 | } | |
955 | ||
956 | static int wolfson_init04(struct ac97_codec * codec) | |
957 | { | |
958 | codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); | |
959 | codec->codec_write(codec, AC97_WM97XX_RMIXER_VOL, 0x0808); | |
960 | ||
961 | // patch for DVD noise | |
962 | codec->codec_write(codec, AC97_WM97XX_TEST, 0x0200); | |
963 | ||
964 | // init vol as PCM vol | |
965 | codec->codec_write(codec, AC97_WM9704_RPCM_VOL, | |
966 | codec->codec_read(codec, AC97_PCMOUT_VOL)); | |
967 | ||
968 | /* set rear surround volume */ | |
969 | codec->codec_write(codec, AC97_SURROUND_MASTER, 0x0000); | |
970 | return 0; | |
971 | } | |
972 | ||
973 | /* WM9705, WM9710 */ | |
974 | static int wolfson_init05(struct ac97_codec * codec) | |
975 | { | |
976 | /* set front mixer volume */ | |
977 | codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); | |
978 | return 0; | |
979 | } | |
980 | ||
981 | /* WM9711, WM9712 */ | |
982 | static int wolfson_init11(struct ac97_codec * codec) | |
983 | { | |
984 | /* stop pop's during suspend/resume */ | |
985 | codec->codec_write(codec, AC97_WM97XX_TEST, | |
986 | codec->codec_read(codec, AC97_WM97XX_TEST) & 0xffbf); | |
987 | ||
988 | /* set out3 volume */ | |
989 | codec->codec_write(codec, AC97_WM9711_OUT3VOL, 0x0808); | |
990 | return 0; | |
991 | } | |
992 | ||
993 | /* WM9713 */ | |
994 | static int wolfson_init13(struct ac97_codec * codec) | |
995 | { | |
996 | codec->codec_write(codec, AC97_RECORD_GAIN, 0x00a0); | |
997 | codec->codec_write(codec, AC97_POWER_CONTROL, 0x0000); | |
998 | codec->codec_write(codec, AC97_EXTENDED_MODEM_ID, 0xDA00); | |
999 | codec->codec_write(codec, AC97_EXTEND_MODEM_STAT, 0x3810); | |
1000 | codec->codec_write(codec, AC97_PHONE_VOL, 0x0808); | |
1001 | codec->codec_write(codec, AC97_PCBEEP_VOL, 0x0808); | |
1002 | ||
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | static int tritech_init(struct ac97_codec * codec) | |
1007 | { | |
1008 | codec->codec_write(codec, 0x26, 0x0300); | |
1009 | codec->codec_write(codec, 0x26, 0x0000); | |
1010 | codec->codec_write(codec, AC97_SURROUND_MASTER, 0x0000); | |
1011 | codec->codec_write(codec, AC97_RESERVED_3A, 0x0000); | |
1012 | return 0; | |
1013 | } | |
1014 | ||
1015 | ||
1016 | /* copied from drivers/sound/maestro.c */ | |
1017 | static int tritech_maestro_init(struct ac97_codec * codec) | |
1018 | { | |
1019 | /* no idea what this does */ | |
1020 | codec->codec_write(codec, 0x2A, 0x0001); | |
1021 | codec->codec_write(codec, 0x2C, 0x0000); | |
1022 | codec->codec_write(codec, 0x2C, 0XFFFF); | |
1023 | return 0; | |
1024 | } | |
1025 | ||
1026 | ||
1027 | ||
1028 | /* | |
1029 | * Presario700 workaround | |
1030 | * for Jack Sense/SPDIF Register mis-setting causing | |
1031 | * no audible output | |
1032 | * by Santiago Nullo 04/05/2002 | |
1033 | */ | |
1034 | ||
1035 | #define AC97_AD1886_JACK_SENSE 0x72 | |
1036 | ||
1037 | static int ad1886_init(struct ac97_codec * codec) | |
1038 | { | |
1039 | /* from AD1886 Specs */ | |
1040 | codec->codec_write(codec, AC97_AD1886_JACK_SENSE, 0x0010); | |
1041 | return 0; | |
1042 | } | |
1043 | ||
1044 | ||
1045 | ||
1046 | ||
1047 | /* | |
1048 | * This is basically standard AC97. It should work as a default for | |
1049 | * almost all modern codecs. Note that some cards wire EAPD *backwards* | |
1050 | * That side of it is up to the card driver not us to cope with. | |
1051 | * | |
1052 | */ | |
1053 | ||
1054 | static int eapd_control(struct ac97_codec * codec, int on) | |
1055 | { | |
1056 | if(on) | |
1057 | codec->codec_write(codec, AC97_POWER_CONTROL, | |
1058 | codec->codec_read(codec, AC97_POWER_CONTROL)|0x8000); | |
1059 | else | |
1060 | codec->codec_write(codec, AC97_POWER_CONTROL, | |
1061 | codec->codec_read(codec, AC97_POWER_CONTROL)&~0x8000); | |
1062 | return 0; | |
1063 | } | |
1064 | ||
1065 | static int generic_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) | |
1066 | { | |
1067 | u16 reg; | |
1068 | ||
1069 | reg = codec->codec_read(codec, AC97_SPDIF_CONTROL); | |
1070 | ||
1071 | switch(rate) | |
1072 | { | |
1073 | /* Off by default */ | |
1074 | default: | |
1075 | case 0: | |
1076 | reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); | |
1077 | codec->codec_write(codec, AC97_EXTENDED_STATUS, (reg & ~AC97_EA_SPDIF)); | |
1078 | if(rate == 0) | |
1079 | return 0; | |
1080 | return -EINVAL; | |
1081 | case 1: | |
1082 | reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_48K; | |
1083 | break; | |
1084 | case 2: | |
1085 | reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_44K; | |
1086 | break; | |
1087 | case 3: | |
1088 | reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_32K; | |
1089 | break; | |
1090 | } | |
1091 | ||
1092 | reg &= ~AC97_SC_CC_MASK; | |
1093 | reg |= (mode & AUDIO_CCMASK) << 6; | |
1094 | ||
1095 | if(mode & AUDIO_DIGITAL) | |
1096 | reg |= 2; | |
1097 | if(mode & AUDIO_PRO) | |
1098 | reg |= 1; | |
1099 | if(mode & AUDIO_DRS) | |
1100 | reg |= 0x4000; | |
1101 | ||
1102 | codec->codec_write(codec, AC97_SPDIF_CONTROL, reg); | |
1103 | ||
1104 | reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); | |
1105 | reg &= (AC97_EA_SLOT_MASK); | |
1106 | reg |= AC97_EA_VRA | AC97_EA_SPDIF | slots; | |
1107 | codec->codec_write(codec, AC97_EXTENDED_STATUS, reg); | |
1108 | ||
1109 | reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); | |
1110 | if(!(reg & 0x0400)) | |
1111 | { | |
1112 | codec->codec_write(codec, AC97_EXTENDED_STATUS, reg & ~ AC97_EA_SPDIF); | |
1113 | return -EINVAL; | |
1114 | } | |
1115 | return 0; | |
1116 | } | |
1117 | ||
1118 | /* | |
1119 | * Crystal digital audio control (CS4299) | |
1120 | */ | |
1121 | ||
1122 | static int crystal_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) | |
1123 | { | |
1124 | u16 cv; | |
1125 | ||
1126 | if(mode & AUDIO_DIGITAL) | |
1127 | return -EINVAL; | |
1128 | ||
1129 | switch(rate) | |
1130 | { | |
1131 | case 0: cv = 0x0; break; /* SPEN off */ | |
1132 | case 48000: cv = 0x8004; break; /* 48KHz digital */ | |
1133 | case 44100: cv = 0x8104; break; /* 44.1KHz digital */ | |
1134 | case 32768: /* 32Khz */ | |
1135 | default: | |
1136 | return -EINVAL; | |
1137 | } | |
1138 | codec->codec_write(codec, 0x68, cv); | |
1139 | return 0; | |
1140 | } | |
1141 | ||
1142 | /* | |
1143 | * CMedia digital audio control | |
1144 | * Needs more work. | |
1145 | */ | |
1146 | ||
1147 | static int cmedia_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) | |
1148 | { | |
1149 | u16 cv; | |
1150 | ||
1151 | if(mode & AUDIO_DIGITAL) | |
1152 | return -EINVAL; | |
1153 | ||
1154 | switch(rate) | |
1155 | { | |
1156 | case 0: cv = 0x0001; break; /* SPEN off */ | |
1157 | case 48000: cv = 0x0009; break; /* 48KHz digital */ | |
1158 | default: | |
1159 | return -EINVAL; | |
1160 | } | |
1161 | codec->codec_write(codec, 0x2A, 0x05c4); | |
1162 | codec->codec_write(codec, 0x6C, cv); | |
1163 | ||
1164 | /* Switch on mix to surround */ | |
1165 | cv = codec->codec_read(codec, 0x64); | |
1166 | cv &= ~0x0200; | |
1167 | if(mode) | |
1168 | cv |= 0x0200; | |
1169 | codec->codec_write(codec, 0x64, cv); | |
1170 | return 0; | |
1171 | } | |
1172 | ||
1173 | ||
1174 | /* copied from drivers/sound/maestro.c */ | |
1175 | #if 0 /* there has been 1 person on the planet with a pt101 that we | |
1176 | know of. If they care, they can put this back in :) */ | |
1177 | static int pt101_init(struct ac97_codec * codec) | |
1178 | { | |
1179 | printk(KERN_INFO "ac97_codec: PT101 Codec detected, initializing but _not_ installing mixer device.\n"); | |
1180 | /* who knows.. */ | |
1181 | codec->codec_write(codec, 0x2A, 0x0001); | |
1182 | codec->codec_write(codec, 0x2C, 0x0000); | |
1183 | codec->codec_write(codec, 0x2C, 0xFFFF); | |
1184 | codec->codec_write(codec, 0x10, 0x9F1F); | |
1185 | codec->codec_write(codec, 0x12, 0x0808); | |
1186 | codec->codec_write(codec, 0x14, 0x9F1F); | |
1187 | codec->codec_write(codec, 0x16, 0x9F1F); | |
1188 | codec->codec_write(codec, 0x18, 0x0404); | |
1189 | codec->codec_write(codec, 0x1A, 0x0000); | |
1190 | codec->codec_write(codec, 0x1C, 0x0000); | |
1191 | codec->codec_write(codec, 0x02, 0x0404); | |
1192 | codec->codec_write(codec, 0x04, 0x0808); | |
1193 | codec->codec_write(codec, 0x0C, 0x801F); | |
1194 | codec->codec_write(codec, 0x0E, 0x801F); | |
1195 | return 0; | |
1196 | } | |
1197 | #endif | |
1198 | ||
1199 | ||
1da177e4 LT |
1200 | EXPORT_SYMBOL(ac97_probe_codec); |
1201 | ||
d6e4218e AB |
1202 | MODULE_LICENSE("GPL"); |
1203 |