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x86: Fix S4 regression
[linux-btrfs-devel.git] / sound / soc / codecs / wm8904.c
blobb085575d4aa542ac0cc8bf9c4a1b908c2eafdfe9
1 /*
2 * wm8904.c -- WM8904 ALSA SoC Audio driver
3 *
4 * Copyright 2009 Wolfson Microelectronics plc
5 *
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 *
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/init.h>
17 #include <linux/delay.h>
18 #include <linux/pm.h>
19 #include <linux/i2c.h>
20 #include <linux/platform_device.h>
21 #include <linux/regulator/consumer.h>
22 #include <linux/slab.h>
23 #include <sound/core.h>
24 #include <sound/pcm.h>
25 #include <sound/pcm_params.h>
26 #include <sound/soc.h>
27 #include <sound/initval.h>
28 #include <sound/tlv.h>
29 #include <sound/wm8904.h>
30
31 #include "wm8904.h"
32
33 enum wm8904_type {
34 WM8904,
35 WM8912,
36 };
37
38 #define WM8904_NUM_DCS_CHANNELS 4
39
40 #define WM8904_NUM_SUPPLIES 5
41 static const char *wm8904_supply_names[WM8904_NUM_SUPPLIES] = {
42 "DCVDD",
43 "DBVDD",
44 "AVDD",
45 "CPVDD",
46 "MICVDD",
47 };
48
49 /* codec private data */
50 struct wm8904_priv {
51
52 enum wm8904_type devtype;
53 void *control_data;
54
55 struct regulator_bulk_data supplies[WM8904_NUM_SUPPLIES];
56
57 struct wm8904_pdata *pdata;
58
59 int deemph;
60
61 /* Platform provided DRC configuration */
62 const char **drc_texts;
63 int drc_cfg;
64 struct soc_enum drc_enum;
65
66 /* Platform provided ReTune mobile configuration */
67 int num_retune_mobile_texts;
68 const char **retune_mobile_texts;
69 int retune_mobile_cfg;
70 struct soc_enum retune_mobile_enum;
71
72 /* FLL setup */
73 int fll_src;
74 int fll_fref;
75 int fll_fout;
76
77 /* Clocking configuration */
78 unsigned int mclk_rate;
79 int sysclk_src;
80 unsigned int sysclk_rate;
81
82 int tdm_width;
83 int tdm_slots;
84 int bclk;
85 int fs;
86
87 /* DC servo configuration - cached offset values */
88 int dcs_state[WM8904_NUM_DCS_CHANNELS];
89 };
90
91 static const u16 wm8904_reg[WM8904_MAX_REGISTER + 1] = {
92 0x8904, /* R0 - SW Reset and ID */
93 0x0000, /* R1 - Revision */
94 0x0000, /* R2 */
95 0x0000, /* R3 */
96 0x0018, /* R4 - Bias Control 0 */
97 0x0000, /* R5 - VMID Control 0 */
98 0x0000, /* R6 - Mic Bias Control 0 */
99 0x0000, /* R7 - Mic Bias Control 1 */
100 0x0001, /* R8 - Analogue DAC 0 */
101 0x9696, /* R9 - mic Filter Control */
102 0x0001, /* R10 - Analogue ADC 0 */
103 0x0000, /* R11 */
104 0x0000, /* R12 - Power Management 0 */
105 0x0000, /* R13 */
106 0x0000, /* R14 - Power Management 2 */
107 0x0000, /* R15 - Power Management 3 */
108 0x0000, /* R16 */
109 0x0000, /* R17 */
110 0x0000, /* R18 - Power Management 6 */
111 0x0000, /* R19 */
112 0x945E, /* R20 - Clock Rates 0 */
113 0x0C05, /* R21 - Clock Rates 1 */
114 0x0006, /* R22 - Clock Rates 2 */
115 0x0000, /* R23 */
116 0x0050, /* R24 - Audio Interface 0 */
117 0x000A, /* R25 - Audio Interface 1 */
118 0x00E4, /* R26 - Audio Interface 2 */
119 0x0040, /* R27 - Audio Interface 3 */
120 0x0000, /* R28 */
121 0x0000, /* R29 */
122 0x00C0, /* R30 - DAC Digital Volume Left */
123 0x00C0, /* R31 - DAC Digital Volume Right */
124 0x0000, /* R32 - DAC Digital 0 */
125 0x0008, /* R33 - DAC Digital 1 */
126 0x0000, /* R34 */
127 0x0000, /* R35 */
128 0x00C0, /* R36 - ADC Digital Volume Left */
129 0x00C0, /* R37 - ADC Digital Volume Right */
130 0x0010, /* R38 - ADC Digital 0 */
131 0x0000, /* R39 - Digital Microphone 0 */
132 0x01AF, /* R40 - DRC 0 */
133 0x3248, /* R41 - DRC 1 */
134 0x0000, /* R42 - DRC 2 */
135 0x0000, /* R43 - DRC 3 */
136 0x0085, /* R44 - Analogue Left Input 0 */
137 0x0085, /* R45 - Analogue Right Input 0 */
138 0x0044, /* R46 - Analogue Left Input 1 */
139 0x0044, /* R47 - Analogue Right Input 1 */
140 0x0000, /* R48 */
141 0x0000, /* R49 */
142 0x0000, /* R50 */
143 0x0000, /* R51 */
144 0x0000, /* R52 */
145 0x0000, /* R53 */
146 0x0000, /* R54 */
147 0x0000, /* R55 */
148 0x0000, /* R56 */
149 0x002D, /* R57 - Analogue OUT1 Left */
150 0x002D, /* R58 - Analogue OUT1 Right */
151 0x0039, /* R59 - Analogue OUT2 Left */
152 0x0039, /* R60 - Analogue OUT2 Right */
153 0x0000, /* R61 - Analogue OUT12 ZC */
154 0x0000, /* R62 */
155 0x0000, /* R63 */
156 0x0000, /* R64 */
157 0x0000, /* R65 */
158 0x0000, /* R66 */
159 0x0000, /* R67 - DC Servo 0 */
160 0x0000, /* R68 - DC Servo 1 */
161 0xAAAA, /* R69 - DC Servo 2 */
162 0x0000, /* R70 */
163 0xAAAA, /* R71 - DC Servo 4 */
164 0xAAAA, /* R72 - DC Servo 5 */
165 0x0000, /* R73 - DC Servo 6 */
166 0x0000, /* R74 - DC Servo 7 */
167 0x0000, /* R75 - DC Servo 8 */
168 0x0000, /* R76 - DC Servo 9 */
169 0x0000, /* R77 - DC Servo Readback 0 */
170 0x0000, /* R78 */
171 0x0000, /* R79 */
172 0x0000, /* R80 */
173 0x0000, /* R81 */
174 0x0000, /* R82 */
175 0x0000, /* R83 */
176 0x0000, /* R84 */
177 0x0000, /* R85 */
178 0x0000, /* R86 */
179 0x0000, /* R87 */
180 0x0000, /* R88 */
181 0x0000, /* R89 */
182 0x0000, /* R90 - Analogue HP 0 */
183 0x0000, /* R91 */
184 0x0000, /* R92 */
185 0x0000, /* R93 */
186 0x0000, /* R94 - Analogue Lineout 0 */
187 0x0000, /* R95 */
188 0x0000, /* R96 */
189 0x0000, /* R97 */
190 0x0000, /* R98 - Charge Pump 0 */
191 0x0000, /* R99 */
192 0x0000, /* R100 */
193 0x0000, /* R101 */
194 0x0000, /* R102 */
195 0x0000, /* R103 */
196 0x0004, /* R104 - Class W 0 */
197 0x0000, /* R105 */
198 0x0000, /* R106 */
199 0x0000, /* R107 */
200 0x0000, /* R108 - Write Sequencer 0 */
201 0x0000, /* R109 - Write Sequencer 1 */
202 0x0000, /* R110 - Write Sequencer 2 */
203 0x0000, /* R111 - Write Sequencer 3 */
204 0x0000, /* R112 - Write Sequencer 4 */
205 0x0000, /* R113 */
206 0x0000, /* R114 */
207 0x0000, /* R115 */
208 0x0000, /* R116 - FLL Control 1 */
209 0x0007, /* R117 - FLL Control 2 */
210 0x0000, /* R118 - FLL Control 3 */
211 0x2EE0, /* R119 - FLL Control 4 */
212 0x0004, /* R120 - FLL Control 5 */
213 0x0014, /* R121 - GPIO Control 1 */
214 0x0010, /* R122 - GPIO Control 2 */
215 0x0010, /* R123 - GPIO Control 3 */
216 0x0000, /* R124 - GPIO Control 4 */
217 0x0000, /* R125 */
218 0x0000, /* R126 - Digital Pulls */
219 0x0000, /* R127 - Interrupt Status */
220 0xFFFF, /* R128 - Interrupt Status Mask */
221 0x0000, /* R129 - Interrupt Polarity */
222 0x0000, /* R130 - Interrupt Debounce */
223 0x0000, /* R131 */
224 0x0000, /* R132 */
225 0x0000, /* R133 */
226 0x0000, /* R134 - EQ1 */
227 0x000C, /* R135 - EQ2 */
228 0x000C, /* R136 - EQ3 */
229 0x000C, /* R137 - EQ4 */
230 0x000C, /* R138 - EQ5 */
231 0x000C, /* R139 - EQ6 */
232 0x0FCA, /* R140 - EQ7 */
233 0x0400, /* R141 - EQ8 */
234 0x00D8, /* R142 - EQ9 */
235 0x1EB5, /* R143 - EQ10 */
236 0xF145, /* R144 - EQ11 */
237 0x0B75, /* R145 - EQ12 */
238 0x01C5, /* R146 - EQ13 */
239 0x1C58, /* R147 - EQ14 */
240 0xF373, /* R148 - EQ15 */
241 0x0A54, /* R149 - EQ16 */
242 0x0558, /* R150 - EQ17 */
243 0x168E, /* R151 - EQ18 */
244 0xF829, /* R152 - EQ19 */
245 0x07AD, /* R153 - EQ20 */
246 0x1103, /* R154 - EQ21 */
247 0x0564, /* R155 - EQ22 */
248 0x0559, /* R156 - EQ23 */
249 0x4000, /* R157 - EQ24 */
250 0x0000, /* R158 */
251 0x0000, /* R159 */
252 0x0000, /* R160 */
253 0x0000, /* R161 - Control Interface Test 1 */
254 0x0000, /* R162 */
255 0x0000, /* R163 */
256 0x0000, /* R164 */
257 0x0000, /* R165 */
258 0x0000, /* R166 */
259 0x0000, /* R167 */
260 0x0000, /* R168 */
261 0x0000, /* R169 */
262 0x0000, /* R170 */
263 0x0000, /* R171 */
264 0x0000, /* R172 */
265 0x0000, /* R173 */
266 0x0000, /* R174 */
267 0x0000, /* R175 */
268 0x0000, /* R176 */
269 0x0000, /* R177 */
270 0x0000, /* R178 */
271 0x0000, /* R179 */
272 0x0000, /* R180 */
273 0x0000, /* R181 */
274 0x0000, /* R182 */
275 0x0000, /* R183 */
276 0x0000, /* R184 */
277 0x0000, /* R185 */
278 0x0000, /* R186 */
279 0x0000, /* R187 */
280 0x0000, /* R188 */
281 0x0000, /* R189 */
282 0x0000, /* R190 */
283 0x0000, /* R191 */
284 0x0000, /* R192 */
285 0x0000, /* R193 */
286 0x0000, /* R194 */
287 0x0000, /* R195 */
288 0x0000, /* R196 */
289 0x0000, /* R197 */
290 0x0000, /* R198 */
291 0x0000, /* R199 */
292 0x0000, /* R200 */
293 0x0000, /* R201 */
294 0x0000, /* R202 */
295 0x0000, /* R203 */
296 0x0000, /* R204 - Analogue Output Bias 0 */
297 0x0000, /* R205 */
298 0x0000, /* R206 */
299 0x0000, /* R207 */
300 0x0000, /* R208 */
301 0x0000, /* R209 */
302 0x0000, /* R210 */
303 0x0000, /* R211 */
304 0x0000, /* R212 */
305 0x0000, /* R213 */
306 0x0000, /* R214 */
307 0x0000, /* R215 */
308 0x0000, /* R216 */
309 0x0000, /* R217 */
310 0x0000, /* R218 */
311 0x0000, /* R219 */
312 0x0000, /* R220 */
313 0x0000, /* R221 */
314 0x0000, /* R222 */
315 0x0000, /* R223 */
316 0x0000, /* R224 */
317 0x0000, /* R225 */
318 0x0000, /* R226 */
319 0x0000, /* R227 */
320 0x0000, /* R228 */
321 0x0000, /* R229 */
322 0x0000, /* R230 */
323 0x0000, /* R231 */
324 0x0000, /* R232 */
325 0x0000, /* R233 */
326 0x0000, /* R234 */
327 0x0000, /* R235 */
328 0x0000, /* R236 */
329 0x0000, /* R237 */
330 0x0000, /* R238 */
331 0x0000, /* R239 */
332 0x0000, /* R240 */
333 0x0000, /* R241 */
334 0x0000, /* R242 */
335 0x0000, /* R243 */
336 0x0000, /* R244 */
337 0x0000, /* R245 */
338 0x0000, /* R246 */
339 0x0000, /* R247 - FLL NCO Test 0 */
340 0x0019, /* R248 - FLL NCO Test 1 */
341 };
342
343 static struct {
344 int readable;
345 int writable;
346 int vol;
347 } wm8904_access[] = {
348 { 0xFFFF, 0xFFFF, 1 }, /* R0 - SW Reset and ID */
349 { 0x0000, 0x0000, 0 }, /* R1 - Revision */
350 { 0x0000, 0x0000, 0 }, /* R2 */
351 { 0x0000, 0x0000, 0 }, /* R3 */
352 { 0x001F, 0x001F, 0 }, /* R4 - Bias Control 0 */
353 { 0x0047, 0x0047, 0 }, /* R5 - VMID Control 0 */
354 { 0x007F, 0x007F, 0 }, /* R6 - Mic Bias Control 0 */
355 { 0xC007, 0xC007, 0 }, /* R7 - Mic Bias Control 1 */
356 { 0x001E, 0x001E, 0 }, /* R8 - Analogue DAC 0 */
357 { 0xFFFF, 0xFFFF, 0 }, /* R9 - mic Filter Control */
358 { 0x0001, 0x0001, 0 }, /* R10 - Analogue ADC 0 */
359 { 0x0000, 0x0000, 0 }, /* R11 */
360 { 0x0003, 0x0003, 0 }, /* R12 - Power Management 0 */
361 { 0x0000, 0x0000, 0 }, /* R13 */
362 { 0x0003, 0x0003, 0 }, /* R14 - Power Management 2 */
363 { 0x0003, 0x0003, 0 }, /* R15 - Power Management 3 */
364 { 0x0000, 0x0000, 0 }, /* R16 */
365 { 0x0000, 0x0000, 0 }, /* R17 */
366 { 0x000F, 0x000F, 0 }, /* R18 - Power Management 6 */
367 { 0x0000, 0x0000, 0 }, /* R19 */
368 { 0x7001, 0x7001, 0 }, /* R20 - Clock Rates 0 */
369 { 0x3C07, 0x3C07, 0 }, /* R21 - Clock Rates 1 */
370 { 0xD00F, 0xD00F, 0 }, /* R22 - Clock Rates 2 */
371 { 0x0000, 0x0000, 0 }, /* R23 */
372 { 0x1FFF, 0x1FFF, 0 }, /* R24 - Audio Interface 0 */
373 { 0x3DDF, 0x3DDF, 0 }, /* R25 - Audio Interface 1 */
374 { 0x0F1F, 0x0F1F, 0 }, /* R26 - Audio Interface 2 */
375 { 0x0FFF, 0x0FFF, 0 }, /* R27 - Audio Interface 3 */
376 { 0x0000, 0x0000, 0 }, /* R28 */
377 { 0x0000, 0x0000, 0 }, /* R29 */
378 { 0x00FF, 0x01FF, 0 }, /* R30 - DAC Digital Volume Left */
379 { 0x00FF, 0x01FF, 0 }, /* R31 - DAC Digital Volume Right */
380 { 0x0FFF, 0x0FFF, 0 }, /* R32 - DAC Digital 0 */
381 { 0x1E4E, 0x1E4E, 0 }, /* R33 - DAC Digital 1 */
382 { 0x0000, 0x0000, 0 }, /* R34 */
383 { 0x0000, 0x0000, 0 }, /* R35 */
384 { 0x00FF, 0x01FF, 0 }, /* R36 - ADC Digital Volume Left */
385 { 0x00FF, 0x01FF, 0 }, /* R37 - ADC Digital Volume Right */
386 { 0x0073, 0x0073, 0 }, /* R38 - ADC Digital 0 */
387 { 0x1800, 0x1800, 0 }, /* R39 - Digital Microphone 0 */
388 { 0xDFEF, 0xDFEF, 0 }, /* R40 - DRC 0 */
389 { 0xFFFF, 0xFFFF, 0 }, /* R41 - DRC 1 */
390 { 0x003F, 0x003F, 0 }, /* R42 - DRC 2 */
391 { 0x07FF, 0x07FF, 0 }, /* R43 - DRC 3 */
392 { 0x009F, 0x009F, 0 }, /* R44 - Analogue Left Input 0 */
393 { 0x009F, 0x009F, 0 }, /* R45 - Analogue Right Input 0 */
394 { 0x007F, 0x007F, 0 }, /* R46 - Analogue Left Input 1 */
395 { 0x007F, 0x007F, 0 }, /* R47 - Analogue Right Input 1 */
396 { 0x0000, 0x0000, 0 }, /* R48 */
397 { 0x0000, 0x0000, 0 }, /* R49 */
398 { 0x0000, 0x0000, 0 }, /* R50 */
399 { 0x0000, 0x0000, 0 }, /* R51 */
400 { 0x0000, 0x0000, 0 }, /* R52 */
401 { 0x0000, 0x0000, 0 }, /* R53 */
402 { 0x0000, 0x0000, 0 }, /* R54 */
403 { 0x0000, 0x0000, 0 }, /* R55 */
404 { 0x0000, 0x0000, 0 }, /* R56 */
405 { 0x017F, 0x01FF, 0 }, /* R57 - Analogue OUT1 Left */
406 { 0x017F, 0x01FF, 0 }, /* R58 - Analogue OUT1 Right */
407 { 0x017F, 0x01FF, 0 }, /* R59 - Analogue OUT2 Left */
408 { 0x017F, 0x01FF, 0 }, /* R60 - Analogue OUT2 Right */
409 { 0x000F, 0x000F, 0 }, /* R61 - Analogue OUT12 ZC */
410 { 0x0000, 0x0000, 0 }, /* R62 */
411 { 0x0000, 0x0000, 0 }, /* R63 */
412 { 0x0000, 0x0000, 0 }, /* R64 */
413 { 0x0000, 0x0000, 0 }, /* R65 */
414 { 0x0000, 0x0000, 0 }, /* R66 */
415 { 0x000F, 0x000F, 0 }, /* R67 - DC Servo 0 */
416 { 0xFFFF, 0xFFFF, 1 }, /* R68 - DC Servo 1 */
417 { 0x0F0F, 0x0F0F, 0 }, /* R69 - DC Servo 2 */
418 { 0x0000, 0x0000, 0 }, /* R70 */
419 { 0x007F, 0x007F, 0 }, /* R71 - DC Servo 4 */
420 { 0x007F, 0x007F, 0 }, /* R72 - DC Servo 5 */
421 { 0x00FF, 0x00FF, 1 }, /* R73 - DC Servo 6 */
422 { 0x00FF, 0x00FF, 1 }, /* R74 - DC Servo 7 */
423 { 0x00FF, 0x00FF, 1 }, /* R75 - DC Servo 8 */
424 { 0x00FF, 0x00FF, 1 }, /* R76 - DC Servo 9 */
425 { 0x0FFF, 0x0000, 1 }, /* R77 - DC Servo Readback 0 */
426 { 0x0000, 0x0000, 0 }, /* R78 */
427 { 0x0000, 0x0000, 0 }, /* R79 */
428 { 0x0000, 0x0000, 0 }, /* R80 */
429 { 0x0000, 0x0000, 0 }, /* R81 */
430 { 0x0000, 0x0000, 0 }, /* R82 */
431 { 0x0000, 0x0000, 0 }, /* R83 */
432 { 0x0000, 0x0000, 0 }, /* R84 */
433 { 0x0000, 0x0000, 0 }, /* R85 */
434 { 0x0000, 0x0000, 0 }, /* R86 */
435 { 0x0000, 0x0000, 0 }, /* R87 */
436 { 0x0000, 0x0000, 0 }, /* R88 */
437 { 0x0000, 0x0000, 0 }, /* R89 */
438 { 0x00FF, 0x00FF, 0 }, /* R90 - Analogue HP 0 */
439 { 0x0000, 0x0000, 0 }, /* R91 */
440 { 0x0000, 0x0000, 0 }, /* R92 */
441 { 0x0000, 0x0000, 0 }, /* R93 */
442 { 0x00FF, 0x00FF, 0 }, /* R94 - Analogue Lineout 0 */
443 { 0x0000, 0x0000, 0 }, /* R95 */
444 { 0x0000, 0x0000, 0 }, /* R96 */
445 { 0x0000, 0x0000, 0 }, /* R97 */
446 { 0x0001, 0x0001, 0 }, /* R98 - Charge Pump 0 */
447 { 0x0000, 0x0000, 0 }, /* R99 */
448 { 0x0000, 0x0000, 0 }, /* R100 */
449 { 0x0000, 0x0000, 0 }, /* R101 */
450 { 0x0000, 0x0000, 0 }, /* R102 */
451 { 0x0000, 0x0000, 0 }, /* R103 */
452 { 0x0001, 0x0001, 0 }, /* R104 - Class W 0 */
453 { 0x0000, 0x0000, 0 }, /* R105 */
454 { 0x0000, 0x0000, 0 }, /* R106 */
455 { 0x0000, 0x0000, 0 }, /* R107 */
456 { 0x011F, 0x011F, 0 }, /* R108 - Write Sequencer 0 */
457 { 0x7FFF, 0x7FFF, 0 }, /* R109 - Write Sequencer 1 */
458 { 0x4FFF, 0x4FFF, 0 }, /* R110 - Write Sequencer 2 */
459 { 0x003F, 0x033F, 0 }, /* R111 - Write Sequencer 3 */
460 { 0x03F1, 0x0000, 0 }, /* R112 - Write Sequencer 4 */
461 { 0x0000, 0x0000, 0 }, /* R113 */
462 { 0x0000, 0x0000, 0 }, /* R114 */
463 { 0x0000, 0x0000, 0 }, /* R115 */
464 { 0x0007, 0x0007, 0 }, /* R116 - FLL Control 1 */
465 { 0x3F77, 0x3F77, 0 }, /* R117 - FLL Control 2 */
466 { 0xFFFF, 0xFFFF, 0 }, /* R118 - FLL Control 3 */
467 { 0x7FEF, 0x7FEF, 0 }, /* R119 - FLL Control 4 */
468 { 0x001B, 0x001B, 0 }, /* R120 - FLL Control 5 */
469 { 0x003F, 0x003F, 0 }, /* R121 - GPIO Control 1 */
470 { 0x003F, 0x003F, 0 }, /* R122 - GPIO Control 2 */
471 { 0x003F, 0x003F, 0 }, /* R123 - GPIO Control 3 */
472 { 0x038F, 0x038F, 0 }, /* R124 - GPIO Control 4 */
473 { 0x0000, 0x0000, 0 }, /* R125 */
474 { 0x00FF, 0x00FF, 0 }, /* R126 - Digital Pulls */
475 { 0x07FF, 0x03FF, 1 }, /* R127 - Interrupt Status */
476 { 0x03FF, 0x03FF, 0 }, /* R128 - Interrupt Status Mask */
477 { 0x03FF, 0x03FF, 0 }, /* R129 - Interrupt Polarity */
478 { 0x03FF, 0x03FF, 0 }, /* R130 - Interrupt Debounce */
479 { 0x0000, 0x0000, 0 }, /* R131 */
480 { 0x0000, 0x0000, 0 }, /* R132 */
481 { 0x0000, 0x0000, 0 }, /* R133 */
482 { 0x0001, 0x0001, 0 }, /* R134 - EQ1 */
483 { 0x001F, 0x001F, 0 }, /* R135 - EQ2 */
484 { 0x001F, 0x001F, 0 }, /* R136 - EQ3 */
485 { 0x001F, 0x001F, 0 }, /* R137 - EQ4 */
486 { 0x001F, 0x001F, 0 }, /* R138 - EQ5 */
487 { 0x001F, 0x001F, 0 }, /* R139 - EQ6 */
488 { 0xFFFF, 0xFFFF, 0 }, /* R140 - EQ7 */
489 { 0xFFFF, 0xFFFF, 0 }, /* R141 - EQ8 */
490 { 0xFFFF, 0xFFFF, 0 }, /* R142 - EQ9 */
491 { 0xFFFF, 0xFFFF, 0 }, /* R143 - EQ10 */
492 { 0xFFFF, 0xFFFF, 0 }, /* R144 - EQ11 */
493 { 0xFFFF, 0xFFFF, 0 }, /* R145 - EQ12 */
494 { 0xFFFF, 0xFFFF, 0 }, /* R146 - EQ13 */
495 { 0xFFFF, 0xFFFF, 0 }, /* R147 - EQ14 */
496 { 0xFFFF, 0xFFFF, 0 }, /* R148 - EQ15 */
497 { 0xFFFF, 0xFFFF, 0 }, /* R149 - EQ16 */
498 { 0xFFFF, 0xFFFF, 0 }, /* R150 - EQ17 */
499 { 0xFFFF, 0xFFFF, 0 }, /* R151wm8523_dai - EQ18 */
500 { 0xFFFF, 0xFFFF, 0 }, /* R152 - EQ19 */
501 { 0xFFFF, 0xFFFF, 0 }, /* R153 - EQ20 */
502 { 0xFFFF, 0xFFFF, 0 }, /* R154 - EQ21 */
503 { 0xFFFF, 0xFFFF, 0 }, /* R155 - EQ22 */
504 { 0xFFFF, 0xFFFF, 0 }, /* R156 - EQ23 */
505 { 0xFFFF, 0xFFFF, 0 }, /* R157 - EQ24 */
506 { 0x0000, 0x0000, 0 }, /* R158 */
507 { 0x0000, 0x0000, 0 }, /* R159 */
508 { 0x0000, 0x0000, 0 }, /* R160 */
509 { 0x0002, 0x0002, 0 }, /* R161 - Control Interface Test 1 */
510 { 0x0000, 0x0000, 0 }, /* R162 */
511 { 0x0000, 0x0000, 0 }, /* R163 */
512 { 0x0000, 0x0000, 0 }, /* R164 */
513 { 0x0000, 0x0000, 0 }, /* R165 */
514 { 0x0000, 0x0000, 0 }, /* R166 */
515 { 0x0000, 0x0000, 0 }, /* R167 */
516 { 0x0000, 0x0000, 0 }, /* R168 */
517 { 0x0000, 0x0000, 0 }, /* R169 */
518 { 0x0000, 0x0000, 0 }, /* R170 */
519 { 0x0000, 0x0000, 0 }, /* R171 */
520 { 0x0000, 0x0000, 0 }, /* R172 */
521 { 0x0000, 0x0000, 0 }, /* R173 */
522 { 0x0000, 0x0000, 0 }, /* R174 */
523 { 0x0000, 0x0000, 0 }, /* R175 */
524 { 0x0000, 0x0000, 0 }, /* R176 */
525 { 0x0000, 0x0000, 0 }, /* R177 */
526 { 0x0000, 0x0000, 0 }, /* R178 */
527 { 0x0000, 0x0000, 0 }, /* R179 */
528 { 0x0000, 0x0000, 0 }, /* R180 */
529 { 0x0000, 0x0000, 0 }, /* R181 */
530 { 0x0000, 0x0000, 0 }, /* R182 */
531 { 0x0000, 0x0000, 0 }, /* R183 */
532 { 0x0000, 0x0000, 0 }, /* R184 */
533 { 0x0000, 0x0000, 0 }, /* R185 */
534 { 0x0000, 0x0000, 0 }, /* R186 */
535 { 0x0000, 0x0000, 0 }, /* R187 */
536 { 0x0000, 0x0000, 0 }, /* R188 */
537 { 0x0000, 0x0000, 0 }, /* R189 */
538 { 0x0000, 0x0000, 0 }, /* R190 */
539 { 0x0000, 0x0000, 0 }, /* R191 */
540 { 0x0000, 0x0000, 0 }, /* R192 */
541 { 0x0000, 0x0000, 0 }, /* R193 */
542 { 0x0000, 0x0000, 0 }, /* R194 */
543 { 0x0000, 0x0000, 0 }, /* R195 */
544 { 0x0000, 0x0000, 0 }, /* R196 */
545 { 0x0000, 0x0000, 0 }, /* R197 */
546 { 0x0000, 0x0000, 0 }, /* R198 */
547 { 0x0000, 0x0000, 0 }, /* R199 */
548 { 0x0000, 0x0000, 0 }, /* R200 */
549 { 0x0000, 0x0000, 0 }, /* R201 */
550 { 0x0000, 0x0000, 0 }, /* R202 */
551 { 0x0000, 0x0000, 0 }, /* R203 */
552 { 0x0070, 0x0070, 0 }, /* R204 - Analogue Output Bias 0 */
553 { 0x0000, 0x0000, 0 }, /* R205 */
554 { 0x0000, 0x0000, 0 }, /* R206 */
555 { 0x0000, 0x0000, 0 }, /* R207 */
556 { 0x0000, 0x0000, 0 }, /* R208 */
557 { 0x0000, 0x0000, 0 }, /* R209 */
558 { 0x0000, 0x0000, 0 }, /* R210 */
559 { 0x0000, 0x0000, 0 }, /* R211 */
560 { 0x0000, 0x0000, 0 }, /* R212 */
561 { 0x0000, 0x0000, 0 }, /* R213 */
562 { 0x0000, 0x0000, 0 }, /* R214 */
563 { 0x0000, 0x0000, 0 }, /* R215 */
564 { 0x0000, 0x0000, 0 }, /* R216 */
565 { 0x0000, 0x0000, 0 }, /* R217 */
566 { 0x0000, 0x0000, 0 }, /* R218 */
567 { 0x0000, 0x0000, 0 }, /* R219 */
568 { 0x0000, 0x0000, 0 }, /* R220 */
569 { 0x0000, 0x0000, 0 }, /* R221 */
570 { 0x0000, 0x0000, 0 }, /* R222 */
571 { 0x0000, 0x0000, 0 }, /* R223 */
572 { 0x0000, 0x0000, 0 }, /* R224 */
573 { 0x0000, 0x0000, 0 }, /* R225 */
574 { 0x0000, 0x0000, 0 }, /* R226 */
575 { 0x0000, 0x0000, 0 }, /* R227 */
576 { 0x0000, 0x0000, 0 }, /* R228 */
577 { 0x0000, 0x0000, 0 }, /* R229 */
578 { 0x0000, 0x0000, 0 }, /* R230 */
579 { 0x0000, 0x0000, 0 }, /* R231 */
580 { 0x0000, 0x0000, 0 }, /* R232 */
581 { 0x0000, 0x0000, 0 }, /* R233 */
582 { 0x0000, 0x0000, 0 }, /* R234 */
583 { 0x0000, 0x0000, 0 }, /* R235 */
584 { 0x0000, 0x0000, 0 }, /* R236 */
585 { 0x0000, 0x0000, 0 }, /* R237 */
586 { 0x0000, 0x0000, 0 }, /* R238 */
587 { 0x0000, 0x0000, 0 }, /* R239 */
588 { 0x0000, 0x0000, 0 }, /* R240 */
589 { 0x0000, 0x0000, 0 }, /* R241 */
590 { 0x0000, 0x0000, 0 }, /* R242 */
591 { 0x0000, 0x0000, 0 }, /* R243 */
592 { 0x0000, 0x0000, 0 }, /* R244 */
593 { 0x0000, 0x0000, 0 }, /* R245 */
594 { 0x0000, 0x0000, 0 }, /* R246 */
595 { 0x0001, 0x0001, 0 }, /* R247 - FLL NCO Test 0 */
596 { 0x003F, 0x003F, 0 }, /* R248 - FLL NCO Test 1 */
597 };
598
599 static int wm8904_volatile_register(struct snd_soc_codec *codec, unsigned int reg)
600 {
601 return wm8904_access[reg].vol;
602 }
603
604 static int wm8904_reset(struct snd_soc_codec *codec)
605 {
606 return snd_soc_write(codec, WM8904_SW_RESET_AND_ID, 0);
607 }
608
609 static int wm8904_configure_clocking(struct snd_soc_codec *codec)
610 {
611 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
612 unsigned int clock0, clock2, rate;
613
614 /* Gate the clock while we're updating to avoid misclocking */
615 clock2 = snd_soc_read(codec, WM8904_CLOCK_RATES_2);
616 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
617 WM8904_SYSCLK_SRC, 0);
618
619 /* This should be done on init() for bypass paths */
620 switch (wm8904->sysclk_src) {
621 case WM8904_CLK_MCLK:
622 dev_dbg(codec->dev, "Using %dHz MCLK\n", wm8904->mclk_rate);
623
624 clock2 &= ~WM8904_SYSCLK_SRC;
625 rate = wm8904->mclk_rate;
626
627 /* Ensure the FLL is stopped */
628 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
629 WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0);
630 break;
631
632 case WM8904_CLK_FLL:
633 dev_dbg(codec->dev, "Using %dHz FLL clock\n",
634 wm8904->fll_fout);
635
636 clock2 |= WM8904_SYSCLK_SRC;
637 rate = wm8904->fll_fout;
638 break;
639
640 default:
641 dev_err(codec->dev, "System clock not configured\n");
642 return -EINVAL;
643 }
644
645 /* SYSCLK shouldn't be over 13.5MHz */
646 if (rate > 13500000) {
647 clock0 = WM8904_MCLK_DIV;
648 wm8904->sysclk_rate = rate / 2;
649 } else {
650 clock0 = 0;
651 wm8904->sysclk_rate = rate;
652 }
653
654 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_0, WM8904_MCLK_DIV,
655 clock0);
656
657 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
658 WM8904_CLK_SYS_ENA | WM8904_SYSCLK_SRC, clock2);
659
660 dev_dbg(codec->dev, "CLK_SYS is %dHz\n", wm8904->sysclk_rate);
661
662 return 0;
663 }
664
665 static void wm8904_set_drc(struct snd_soc_codec *codec)
666 {
667 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
668 struct wm8904_pdata *pdata = wm8904->pdata;
669 int save, i;
670
671 /* Save any enables; the configuration should clear them. */
672 save = snd_soc_read(codec, WM8904_DRC_0);
673
674 for (i = 0; i < WM8904_DRC_REGS; i++)
675 snd_soc_update_bits(codec, WM8904_DRC_0 + i, 0xffff,
676 pdata->drc_cfgs[wm8904->drc_cfg].regs[i]);
677
678 /* Reenable the DRC */
679 snd_soc_update_bits(codec, WM8904_DRC_0,
680 WM8904_DRC_ENA | WM8904_DRC_DAC_PATH, save);
681 }
682
683 static int wm8904_put_drc_enum(struct snd_kcontrol *kcontrol,
684 struct snd_ctl_elem_value *ucontrol)
685 {
686 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
687 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
688 struct wm8904_pdata *pdata = wm8904->pdata;
689 int value = ucontrol->value.integer.value[0];
690
691 if (value >= pdata->num_drc_cfgs)
692 return -EINVAL;
693
694 wm8904->drc_cfg = value;
695
696 wm8904_set_drc(codec);
697
698 return 0;
699 }
700
701 static int wm8904_get_drc_enum(struct snd_kcontrol *kcontrol,
702 struct snd_ctl_elem_value *ucontrol)
703 {
704 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
705 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
706
707 ucontrol->value.enumerated.item[0] = wm8904->drc_cfg;
708
709 return 0;
710 }
711
712 static void wm8904_set_retune_mobile(struct snd_soc_codec *codec)
713 {
714 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
715 struct wm8904_pdata *pdata = wm8904->pdata;
716 int best, best_val, save, i, cfg;
717
718 if (!pdata || !wm8904->num_retune_mobile_texts)
719 return;
720
721 /* Find the version of the currently selected configuration
722 * with the nearest sample rate. */
723 cfg = wm8904->retune_mobile_cfg;
724 best = 0;
725 best_val = INT_MAX;
726 for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) {
727 if (strcmp(pdata->retune_mobile_cfgs[i].name,
728 wm8904->retune_mobile_texts[cfg]) == 0 &&
729 abs(pdata->retune_mobile_cfgs[i].rate
730 - wm8904->fs) < best_val) {
731 best = i;
732 best_val = abs(pdata->retune_mobile_cfgs[i].rate
733 - wm8904->fs);
734 }
735 }
736
737 dev_dbg(codec->dev, "ReTune Mobile %s/%dHz for %dHz sample rate\n",
738 pdata->retune_mobile_cfgs[best].name,
739 pdata->retune_mobile_cfgs[best].rate,
740 wm8904->fs);
741
742 /* The EQ will be disabled while reconfiguring it, remember the
743 * current configuration.
744 */
745 save = snd_soc_read(codec, WM8904_EQ1);
746
747 for (i = 0; i < WM8904_EQ_REGS; i++)
748 snd_soc_update_bits(codec, WM8904_EQ1 + i, 0xffff,
749 pdata->retune_mobile_cfgs[best].regs[i]);
750
751 snd_soc_update_bits(codec, WM8904_EQ1, WM8904_EQ_ENA, save);
752 }
753
754 static int wm8904_put_retune_mobile_enum(struct snd_kcontrol *kcontrol,
755 struct snd_ctl_elem_value *ucontrol)
756 {
757 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
758 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
759 struct wm8904_pdata *pdata = wm8904->pdata;
760 int value = ucontrol->value.integer.value[0];
761
762 if (value >= pdata->num_retune_mobile_cfgs)
763 return -EINVAL;
764
765 wm8904->retune_mobile_cfg = value;
766
767 wm8904_set_retune_mobile(codec);
768
769 return 0;
770 }
771
772 static int wm8904_get_retune_mobile_enum(struct snd_kcontrol *kcontrol,
773 struct snd_ctl_elem_value *ucontrol)
774 {
775 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
776 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
777
778 ucontrol->value.enumerated.item[0] = wm8904->retune_mobile_cfg;
779
780 return 0;
781 }
782
783 static int deemph_settings[] = { 0, 32000, 44100, 48000 };
784
785 static int wm8904_set_deemph(struct snd_soc_codec *codec)
786 {
787 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
788 int val, i, best;
789
790 /* If we're using deemphasis select the nearest available sample
791 * rate.
792 */
793 if (wm8904->deemph) {
794 best = 1;
795 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
796 if (abs(deemph_settings[i] - wm8904->fs) <
797 abs(deemph_settings[best] - wm8904->fs))
798 best = i;
799 }
800
801 val = best << WM8904_DEEMPH_SHIFT;
802 } else {
803 val = 0;
804 }
805
806 dev_dbg(codec->dev, "Set deemphasis %d\n", val);
807
808 return snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1,
809 WM8904_DEEMPH_MASK, val);
810 }
811
812 static int wm8904_get_deemph(struct snd_kcontrol *kcontrol,
813 struct snd_ctl_elem_value *ucontrol)
814 {
815 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
816 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
817
818 ucontrol->value.enumerated.item[0] = wm8904->deemph;
819 return 0;
820 }
821
822 static int wm8904_put_deemph(struct snd_kcontrol *kcontrol,
823 struct snd_ctl_elem_value *ucontrol)
824 {
825 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
826 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
827 int deemph = ucontrol->value.enumerated.item[0];
828
829 if (deemph > 1)
830 return -EINVAL;
831
832 wm8904->deemph = deemph;
833
834 return wm8904_set_deemph(codec);
835 }
836
837 static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
838 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
839 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
840 static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 300, 0);
841 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
842
843 static const char *input_mode_text[] = {
844 "Single-Ended", "Differential Line", "Differential Mic"
845 };
846
847 static const struct soc_enum lin_mode =
848 SOC_ENUM_SINGLE(WM8904_ANALOGUE_LEFT_INPUT_1, 0, 3, input_mode_text);
849
850 static const struct soc_enum rin_mode =
851 SOC_ENUM_SINGLE(WM8904_ANALOGUE_RIGHT_INPUT_1, 0, 3, input_mode_text);
852
853 static const char *hpf_mode_text[] = {
854 "Hi-fi", "Voice 1", "Voice 2", "Voice 3"
855 };
856
857 static const struct soc_enum hpf_mode =
858 SOC_ENUM_SINGLE(WM8904_ADC_DIGITAL_0, 5, 4, hpf_mode_text);
859
860 static const struct snd_kcontrol_new wm8904_adc_snd_controls[] = {
861 SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8904_ADC_DIGITAL_VOLUME_LEFT,
862 WM8904_ADC_DIGITAL_VOLUME_RIGHT, 1, 119, 0, digital_tlv),
863
864 SOC_ENUM("Left Caputure Mode", lin_mode),
865 SOC_ENUM("Right Capture Mode", rin_mode),
866
867 /* No TLV since it depends on mode */
868 SOC_DOUBLE_R("Capture Volume", WM8904_ANALOGUE_LEFT_INPUT_0,
869 WM8904_ANALOGUE_RIGHT_INPUT_0, 0, 31, 0),
870 SOC_DOUBLE_R("Capture Switch", WM8904_ANALOGUE_LEFT_INPUT_0,
871 WM8904_ANALOGUE_RIGHT_INPUT_0, 7, 1, 0),
872
873 SOC_SINGLE("High Pass Filter Switch", WM8904_ADC_DIGITAL_0, 4, 1, 0),
874 SOC_ENUM("High Pass Filter Mode", hpf_mode),
875
876 SOC_SINGLE("ADC 128x OSR Switch", WM8904_ANALOGUE_ADC_0, 0, 1, 0),
877 };
878
879 static const char *drc_path_text[] = {
880 "ADC", "DAC"
881 };
882
883 static const struct soc_enum drc_path =
884 SOC_ENUM_SINGLE(WM8904_DRC_0, 14, 2, drc_path_text);
885
886 static const struct snd_kcontrol_new wm8904_dac_snd_controls[] = {
887 SOC_SINGLE_TLV("Digital Playback Boost Volume",
888 WM8904_AUDIO_INTERFACE_0, 9, 3, 0, dac_boost_tlv),
889 SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8904_DAC_DIGITAL_VOLUME_LEFT,
890 WM8904_DAC_DIGITAL_VOLUME_RIGHT, 1, 96, 0, digital_tlv),
891
892 SOC_DOUBLE_R_TLV("Headphone Volume", WM8904_ANALOGUE_OUT1_LEFT,
893 WM8904_ANALOGUE_OUT1_RIGHT, 0, 63, 0, out_tlv),
894 SOC_DOUBLE_R("Headphone Switch", WM8904_ANALOGUE_OUT1_LEFT,
895 WM8904_ANALOGUE_OUT1_RIGHT, 8, 1, 1),
896 SOC_DOUBLE_R("Headphone ZC Switch", WM8904_ANALOGUE_OUT1_LEFT,
897 WM8904_ANALOGUE_OUT1_RIGHT, 6, 1, 0),
898
899 SOC_DOUBLE_R_TLV("Line Output Volume", WM8904_ANALOGUE_OUT2_LEFT,
900 WM8904_ANALOGUE_OUT2_RIGHT, 0, 63, 0, out_tlv),
901 SOC_DOUBLE_R("Line Output Switch", WM8904_ANALOGUE_OUT2_LEFT,
902 WM8904_ANALOGUE_OUT2_RIGHT, 8, 1, 1),
903 SOC_DOUBLE_R("Line Output ZC Switch", WM8904_ANALOGUE_OUT2_LEFT,
904 WM8904_ANALOGUE_OUT2_RIGHT, 6, 1, 0),
905
906 SOC_SINGLE("EQ Switch", WM8904_EQ1, 0, 1, 0),
907 SOC_SINGLE("DRC Switch", WM8904_DRC_0, 15, 1, 0),
908 SOC_ENUM("DRC Path", drc_path),
909 SOC_SINGLE("DAC OSRx2 Switch", WM8904_DAC_DIGITAL_1, 6, 1, 0),
910 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
911 wm8904_get_deemph, wm8904_put_deemph),
912 };
913
914 static const struct snd_kcontrol_new wm8904_snd_controls[] = {
915 SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8904_DAC_DIGITAL_0, 4, 8, 15, 0,
916 sidetone_tlv),
917 };
918
919 static const struct snd_kcontrol_new wm8904_eq_controls[] = {
920 SOC_SINGLE_TLV("EQ1 Volume", WM8904_EQ2, 0, 24, 0, eq_tlv),
921 SOC_SINGLE_TLV("EQ2 Volume", WM8904_EQ3, 0, 24, 0, eq_tlv),
922 SOC_SINGLE_TLV("EQ3 Volume", WM8904_EQ4, 0, 24, 0, eq_tlv),
923 SOC_SINGLE_TLV("EQ4 Volume", WM8904_EQ5, 0, 24, 0, eq_tlv),
924 SOC_SINGLE_TLV("EQ5 Volume", WM8904_EQ6, 0, 24, 0, eq_tlv),
925 };
926
927 static int cp_event(struct snd_soc_dapm_widget *w,
928 struct snd_kcontrol *kcontrol, int event)
929 {
930 BUG_ON(event != SND_SOC_DAPM_POST_PMU);
931
932 /* Maximum startup time */
933 udelay(500);
934
935 return 0;
936 }
937
938 static int sysclk_event(struct snd_soc_dapm_widget *w,
939 struct snd_kcontrol *kcontrol, int event)
940 {
941 struct snd_soc_codec *codec = w->codec;
942 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
943
944 switch (event) {
945 case SND_SOC_DAPM_PRE_PMU:
946 /* If we're using the FLL then we only start it when
947 * required; we assume that the configuration has been
948 * done previously and all we need to do is kick it
949 * off.
950 */
951 switch (wm8904->sysclk_src) {
952 case WM8904_CLK_FLL:
953 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
954 WM8904_FLL_OSC_ENA,
955 WM8904_FLL_OSC_ENA);
956
957 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
958 WM8904_FLL_ENA,
959 WM8904_FLL_ENA);
960 break;
961
962 default:
963 break;
964 }
965 break;
966
967 case SND_SOC_DAPM_POST_PMD:
968 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
969 WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0);
970 break;
971 }
972
973 return 0;
974 }
975
976 static int out_pga_event(struct snd_soc_dapm_widget *w,
977 struct snd_kcontrol *kcontrol, int event)
978 {
979 struct snd_soc_codec *codec = w->codec;
980 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
981 int reg, val;
982 int dcs_mask;
983 int dcs_l, dcs_r;
984 int dcs_l_reg, dcs_r_reg;
985 int timeout;
986 int pwr_reg;
987
988 /* This code is shared between HP and LINEOUT; we do all our
989 * power management in stereo pairs to avoid latency issues so
990 * we reuse shift to identify which rather than strcmp() the
991 * name. */
992 reg = w->shift;
993
994 switch (reg) {
995 case WM8904_ANALOGUE_HP_0:
996 pwr_reg = WM8904_POWER_MANAGEMENT_2;
997 dcs_mask = WM8904_DCS_ENA_CHAN_0 | WM8904_DCS_ENA_CHAN_1;
998 dcs_r_reg = WM8904_DC_SERVO_8;
999 dcs_l_reg = WM8904_DC_SERVO_9;
1000 dcs_l = 0;
1001 dcs_r = 1;
1002 break;
1003 case WM8904_ANALOGUE_LINEOUT_0:
1004 pwr_reg = WM8904_POWER_MANAGEMENT_3;
1005 dcs_mask = WM8904_DCS_ENA_CHAN_2 | WM8904_DCS_ENA_CHAN_3;
1006 dcs_r_reg = WM8904_DC_SERVO_6;
1007 dcs_l_reg = WM8904_DC_SERVO_7;
1008 dcs_l = 2;
1009 dcs_r = 3;
1010 break;
1011 default:
1012 BUG();
1013 return -EINVAL;
1014 }
1015
1016 switch (event) {
1017 case SND_SOC_DAPM_PRE_PMU:
1018 /* Power on the PGAs */
1019 snd_soc_update_bits(codec, pwr_reg,
1020 WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA,
1021 WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA);
1022
1023 /* Power on the amplifier */
1024 snd_soc_update_bits(codec, reg,
1025 WM8904_HPL_ENA | WM8904_HPR_ENA,
1026 WM8904_HPL_ENA | WM8904_HPR_ENA);
1027
1028
1029 /* Enable the first stage */
1030 snd_soc_update_bits(codec, reg,
1031 WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY,
1032 WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY);
1033
1034 /* Power up the DC servo */
1035 snd_soc_update_bits(codec, WM8904_DC_SERVO_0,
1036 dcs_mask, dcs_mask);
1037
1038 /* Either calibrate the DC servo or restore cached state
1039 * if we have that.
1040 */
1041 if (wm8904->dcs_state[dcs_l] || wm8904->dcs_state[dcs_r]) {
1042 dev_dbg(codec->dev, "Restoring DC servo state\n");
1043
1044 snd_soc_write(codec, dcs_l_reg,
1045 wm8904->dcs_state[dcs_l]);
1046 snd_soc_write(codec, dcs_r_reg,
1047 wm8904->dcs_state[dcs_r]);
1048
1049 snd_soc_write(codec, WM8904_DC_SERVO_1, dcs_mask);
1050
1051 timeout = 20;
1052 } else {
1053 dev_dbg(codec->dev, "Calibrating DC servo\n");
1054
1055 snd_soc_write(codec, WM8904_DC_SERVO_1,
1056 dcs_mask << WM8904_DCS_TRIG_STARTUP_0_SHIFT);
1057
1058 timeout = 500;
1059 }
1060
1061 /* Wait for DC servo to complete */
1062 dcs_mask <<= WM8904_DCS_CAL_COMPLETE_SHIFT;
1063 do {
1064 val = snd_soc_read(codec, WM8904_DC_SERVO_READBACK_0);
1065 if ((val & dcs_mask) == dcs_mask)
1066 break;
1067
1068 msleep(1);
1069 } while (--timeout);
1070
1071 if ((val & dcs_mask) != dcs_mask)
1072 dev_warn(codec->dev, "DC servo timed out\n");
1073 else
1074 dev_dbg(codec->dev, "DC servo ready\n");
1075
1076 /* Enable the output stage */
1077 snd_soc_update_bits(codec, reg,
1078 WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP,
1079 WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP);
1080 break;
1081
1082 case SND_SOC_DAPM_POST_PMU:
1083 /* Unshort the output itself */
1084 snd_soc_update_bits(codec, reg,
1085 WM8904_HPL_RMV_SHORT |
1086 WM8904_HPR_RMV_SHORT,
1087 WM8904_HPL_RMV_SHORT |
1088 WM8904_HPR_RMV_SHORT);
1089
1090 break;
1091
1092 case SND_SOC_DAPM_PRE_PMD:
1093 /* Short the output */
1094 snd_soc_update_bits(codec, reg,
1095 WM8904_HPL_RMV_SHORT |
1096 WM8904_HPR_RMV_SHORT, 0);
1097 break;
1098
1099 case SND_SOC_DAPM_POST_PMD:
1100 /* Cache the DC servo configuration; this will be
1101 * invalidated if we change the configuration. */
1102 wm8904->dcs_state[dcs_l] = snd_soc_read(codec, dcs_l_reg);
1103 wm8904->dcs_state[dcs_r] = snd_soc_read(codec, dcs_r_reg);
1104
1105 snd_soc_update_bits(codec, WM8904_DC_SERVO_0,
1106 dcs_mask, 0);
1107
1108 /* Disable the amplifier input and output stages */
1109 snd_soc_update_bits(codec, reg,
1110 WM8904_HPL_ENA | WM8904_HPR_ENA |
1111 WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY |
1112 WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP,
1113 0);
1114
1115 /* PGAs too */
1116 snd_soc_update_bits(codec, pwr_reg,
1117 WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA,
1118 0);
1119 break;
1120 }
1121
1122 return 0;
1123 }
1124
1125 static const char *lin_text[] = {
1126 "IN1L", "IN2L", "IN3L"
1127 };
1128
1129 static const struct soc_enum lin_enum =
1130 SOC_ENUM_SINGLE(WM8904_ANALOGUE_LEFT_INPUT_1, 2, 3, lin_text);
1131
1132 static const struct snd_kcontrol_new lin_mux =
1133 SOC_DAPM_ENUM("Left Capture Mux", lin_enum);
1134
1135 static const struct soc_enum lin_inv_enum =
1136 SOC_ENUM_SINGLE(WM8904_ANALOGUE_LEFT_INPUT_1, 4, 3, lin_text);
1137
1138 static const struct snd_kcontrol_new lin_inv_mux =
1139 SOC_DAPM_ENUM("Left Capture Inveting Mux", lin_inv_enum);
1140
1141 static const char *rin_text[] = {
1142 "IN1R", "IN2R", "IN3R"
1143 };
1144
1145 static const struct soc_enum rin_enum =
1146 SOC_ENUM_SINGLE(WM8904_ANALOGUE_RIGHT_INPUT_1, 2, 3, rin_text);
1147
1148 static const struct snd_kcontrol_new rin_mux =
1149 SOC_DAPM_ENUM("Right Capture Mux", rin_enum);
1150
1151 static const struct soc_enum rin_inv_enum =
1152 SOC_ENUM_SINGLE(WM8904_ANALOGUE_RIGHT_INPUT_1, 4, 3, rin_text);
1153
1154 static const struct snd_kcontrol_new rin_inv_mux =
1155 SOC_DAPM_ENUM("Right Capture Inveting Mux", rin_inv_enum);
1156
1157 static const char *aif_text[] = {
1158 "Left", "Right"
1159 };
1160
1161 static const struct soc_enum aifoutl_enum =
1162 SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 7, 2, aif_text);
1163
1164 static const struct snd_kcontrol_new aifoutl_mux =
1165 SOC_DAPM_ENUM("AIFOUTL Mux", aifoutl_enum);
1166
1167 static const struct soc_enum aifoutr_enum =
1168 SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 6, 2, aif_text);
1169
1170 static const struct snd_kcontrol_new aifoutr_mux =
1171 SOC_DAPM_ENUM("AIFOUTR Mux", aifoutr_enum);
1172
1173 static const struct soc_enum aifinl_enum =
1174 SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 5, 2, aif_text);
1175
1176 static const struct snd_kcontrol_new aifinl_mux =
1177 SOC_DAPM_ENUM("AIFINL Mux", aifinl_enum);
1178
1179 static const struct soc_enum aifinr_enum =
1180 SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 4, 2, aif_text);
1181
1182 static const struct snd_kcontrol_new aifinr_mux =
1183 SOC_DAPM_ENUM("AIFINR Mux", aifinr_enum);
1184
1185 static const struct snd_soc_dapm_widget wm8904_core_dapm_widgets[] = {
1186 SND_SOC_DAPM_SUPPLY("SYSCLK", WM8904_CLOCK_RATES_2, 2, 0, sysclk_event,
1187 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
1188 SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8904_CLOCK_RATES_2, 1, 0, NULL, 0),
1189 SND_SOC_DAPM_SUPPLY("TOCLK", WM8904_CLOCK_RATES_2, 0, 0, NULL, 0),
1190 };
1191
1192 static const struct snd_soc_dapm_widget wm8904_adc_dapm_widgets[] = {
1193 SND_SOC_DAPM_INPUT("IN1L"),
1194 SND_SOC_DAPM_INPUT("IN1R"),
1195 SND_SOC_DAPM_INPUT("IN2L"),
1196 SND_SOC_DAPM_INPUT("IN2R"),
1197 SND_SOC_DAPM_INPUT("IN3L"),
1198 SND_SOC_DAPM_INPUT("IN3R"),
1199
1200 SND_SOC_DAPM_MICBIAS("MICBIAS", WM8904_MIC_BIAS_CONTROL_0, 0, 0),
1201
1202 SND_SOC_DAPM_MUX("Left Capture Mux", SND_SOC_NOPM, 0, 0, &lin_mux),
1203 SND_SOC_DAPM_MUX("Left Capture Inverting Mux", SND_SOC_NOPM, 0, 0,
1204 &lin_inv_mux),
1205 SND_SOC_DAPM_MUX("Right Capture Mux", SND_SOC_NOPM, 0, 0, &rin_mux),
1206 SND_SOC_DAPM_MUX("Right Capture Inverting Mux", SND_SOC_NOPM, 0, 0,
1207 &rin_inv_mux),
1208
1209 SND_SOC_DAPM_PGA("Left Capture PGA", WM8904_POWER_MANAGEMENT_0, 1, 0,
1210 NULL, 0),
1211 SND_SOC_DAPM_PGA("Right Capture PGA", WM8904_POWER_MANAGEMENT_0, 0, 0,
1212 NULL, 0),
1213
1214 SND_SOC_DAPM_ADC("ADCL", NULL, WM8904_POWER_MANAGEMENT_6, 1, 0),
1215 SND_SOC_DAPM_ADC("ADCR", NULL, WM8904_POWER_MANAGEMENT_6, 0, 0),
1216
1217 SND_SOC_DAPM_MUX("AIFOUTL Mux", SND_SOC_NOPM, 0, 0, &aifoutl_mux),
1218 SND_SOC_DAPM_MUX("AIFOUTR Mux", SND_SOC_NOPM, 0, 0, &aifoutr_mux),
1219
1220 SND_SOC_DAPM_AIF_OUT("AIFOUTL", "Capture", 0, SND_SOC_NOPM, 0, 0),
1221 SND_SOC_DAPM_AIF_OUT("AIFOUTR", "Capture", 1, SND_SOC_NOPM, 0, 0),
1222 };
1223
1224 static const struct snd_soc_dapm_widget wm8904_dac_dapm_widgets[] = {
1225 SND_SOC_DAPM_AIF_IN("AIFINL", "Playback", 0, SND_SOC_NOPM, 0, 0),
1226 SND_SOC_DAPM_AIF_IN("AIFINR", "Playback", 1, SND_SOC_NOPM, 0, 0),
1227
1228 SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &aifinl_mux),
1229 SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &aifinr_mux),
1230
1231 SND_SOC_DAPM_DAC("DACL", NULL, WM8904_POWER_MANAGEMENT_6, 3, 0),
1232 SND_SOC_DAPM_DAC("DACR", NULL, WM8904_POWER_MANAGEMENT_6, 2, 0),
1233
1234 SND_SOC_DAPM_SUPPLY("Charge pump", WM8904_CHARGE_PUMP_0, 0, 0, cp_event,
1235 SND_SOC_DAPM_POST_PMU),
1236
1237 SND_SOC_DAPM_PGA("HPL PGA", SND_SOC_NOPM, 1, 0, NULL, 0),
1238 SND_SOC_DAPM_PGA("HPR PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
1239
1240 SND_SOC_DAPM_PGA("LINEL PGA", SND_SOC_NOPM, 1, 0, NULL, 0),
1241 SND_SOC_DAPM_PGA("LINER PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
1242
1243 SND_SOC_DAPM_PGA_E("Headphone Output", SND_SOC_NOPM, WM8904_ANALOGUE_HP_0,
1244 0, NULL, 0, out_pga_event,
1245 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
1246 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
1247 SND_SOC_DAPM_PGA_E("Line Output", SND_SOC_NOPM, WM8904_ANALOGUE_LINEOUT_0,
1248 0, NULL, 0, out_pga_event,
1249 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
1250 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
1251
1252 SND_SOC_DAPM_OUTPUT("HPOUTL"),
1253 SND_SOC_DAPM_OUTPUT("HPOUTR"),
1254 SND_SOC_DAPM_OUTPUT("LINEOUTL"),
1255 SND_SOC_DAPM_OUTPUT("LINEOUTR"),
1256 };
1257
1258 static const char *out_mux_text[] = {
1259 "DAC", "Bypass"
1260 };
1261
1262 static const struct soc_enum hpl_enum =
1263 SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 3, 2, out_mux_text);
1264
1265 static const struct snd_kcontrol_new hpl_mux =
1266 SOC_DAPM_ENUM("HPL Mux", hpl_enum);
1267
1268 static const struct soc_enum hpr_enum =
1269 SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 2, 2, out_mux_text);
1270
1271 static const struct snd_kcontrol_new hpr_mux =
1272 SOC_DAPM_ENUM("HPR Mux", hpr_enum);
1273
1274 static const struct soc_enum linel_enum =
1275 SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 1, 2, out_mux_text);
1276
1277 static const struct snd_kcontrol_new linel_mux =
1278 SOC_DAPM_ENUM("LINEL Mux", linel_enum);
1279
1280 static const struct soc_enum liner_enum =
1281 SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 0, 2, out_mux_text);
1282
1283 static const struct snd_kcontrol_new liner_mux =
1284 SOC_DAPM_ENUM("LINEL Mux", liner_enum);
1285
1286 static const char *sidetone_text[] = {
1287 "None", "Left", "Right"
1288 };
1289
1290 static const struct soc_enum dacl_sidetone_enum =
1291 SOC_ENUM_SINGLE(WM8904_DAC_DIGITAL_0, 2, 3, sidetone_text);
1292
1293 static const struct snd_kcontrol_new dacl_sidetone_mux =
1294 SOC_DAPM_ENUM("Left Sidetone Mux", dacl_sidetone_enum);
1295
1296 static const struct soc_enum dacr_sidetone_enum =
1297 SOC_ENUM_SINGLE(WM8904_DAC_DIGITAL_0, 0, 3, sidetone_text);
1298
1299 static const struct snd_kcontrol_new dacr_sidetone_mux =
1300 SOC_DAPM_ENUM("Right Sidetone Mux", dacr_sidetone_enum);
1301
1302 static const struct snd_soc_dapm_widget wm8904_dapm_widgets[] = {
1303 SND_SOC_DAPM_SUPPLY("Class G", WM8904_CLASS_W_0, 0, 1, NULL, 0),
1304 SND_SOC_DAPM_PGA("Left Bypass", SND_SOC_NOPM, 0, 0, NULL, 0),
1305 SND_SOC_DAPM_PGA("Right Bypass", SND_SOC_NOPM, 0, 0, NULL, 0),
1306
1307 SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &dacl_sidetone_mux),
1308 SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &dacr_sidetone_mux),
1309
1310 SND_SOC_DAPM_MUX("HPL Mux", SND_SOC_NOPM, 0, 0, &hpl_mux),
1311 SND_SOC_DAPM_MUX("HPR Mux", SND_SOC_NOPM, 0, 0, &hpr_mux),
1312 SND_SOC_DAPM_MUX("LINEL Mux", SND_SOC_NOPM, 0, 0, &linel_mux),
1313 SND_SOC_DAPM_MUX("LINER Mux", SND_SOC_NOPM, 0, 0, &liner_mux),
1314 };
1315
1316 static const struct snd_soc_dapm_route core_intercon[] = {
1317 { "CLK_DSP", NULL, "SYSCLK" },
1318 { "TOCLK", NULL, "SYSCLK" },
1319 };
1320
1321 static const struct snd_soc_dapm_route adc_intercon[] = {
1322 { "Left Capture Mux", "IN1L", "IN1L" },
1323 { "Left Capture Mux", "IN2L", "IN2L" },
1324 { "Left Capture Mux", "IN3L", "IN3L" },
1325
1326 { "Left Capture Inverting Mux", "IN1L", "IN1L" },
1327 { "Left Capture Inverting Mux", "IN2L", "IN2L" },
1328 { "Left Capture Inverting Mux", "IN3L", "IN3L" },
1329
1330 { "Right Capture Mux", "IN1R", "IN1R" },
1331 { "Right Capture Mux", "IN2R", "IN2R" },
1332 { "Right Capture Mux", "IN3R", "IN3R" },
1333
1334 { "Right Capture Inverting Mux", "IN1R", "IN1R" },
1335 { "Right Capture Inverting Mux", "IN2R", "IN2R" },
1336 { "Right Capture Inverting Mux", "IN3R", "IN3R" },
1337
1338 { "Left Capture PGA", NULL, "Left Capture Mux" },
1339 { "Left Capture PGA", NULL, "Left Capture Inverting Mux" },
1340
1341 { "Right Capture PGA", NULL, "Right Capture Mux" },
1342 { "Right Capture PGA", NULL, "Right Capture Inverting Mux" },
1343
1344 { "AIFOUTL", "Left", "ADCL" },
1345 { "AIFOUTL", "Right", "ADCR" },
1346 { "AIFOUTR", "Left", "ADCL" },
1347 { "AIFOUTR", "Right", "ADCR" },
1348
1349 { "ADCL", NULL, "CLK_DSP" },
1350 { "ADCL", NULL, "Left Capture PGA" },
1351
1352 { "ADCR", NULL, "CLK_DSP" },
1353 { "ADCR", NULL, "Right Capture PGA" },
1354 };
1355
1356 static const struct snd_soc_dapm_route dac_intercon[] = {
1357 { "DACL", "Right", "AIFINR" },
1358 { "DACL", "Left", "AIFINL" },
1359 { "DACL", NULL, "CLK_DSP" },
1360
1361 { "DACR", "Right", "AIFINR" },
1362 { "DACR", "Left", "AIFINL" },
1363 { "DACR", NULL, "CLK_DSP" },
1364
1365 { "Charge pump", NULL, "SYSCLK" },
1366
1367 { "Headphone Output", NULL, "HPL PGA" },
1368 { "Headphone Output", NULL, "HPR PGA" },
1369 { "Headphone Output", NULL, "Charge pump" },
1370 { "Headphone Output", NULL, "TOCLK" },
1371
1372 { "Line Output", NULL, "LINEL PGA" },
1373 { "Line Output", NULL, "LINER PGA" },
1374 { "Line Output", NULL, "Charge pump" },
1375 { "Line Output", NULL, "TOCLK" },
1376
1377 { "HPOUTL", NULL, "Headphone Output" },
1378 { "HPOUTR", NULL, "Headphone Output" },
1379
1380 { "LINEOUTL", NULL, "Line Output" },
1381 { "LINEOUTR", NULL, "Line Output" },
1382 };
1383
1384 static const struct snd_soc_dapm_route wm8904_intercon[] = {
1385 { "Left Sidetone", "Left", "ADCL" },
1386 { "Left Sidetone", "Right", "ADCR" },
1387 { "DACL", NULL, "Left Sidetone" },
1388
1389 { "Right Sidetone", "Left", "ADCL" },
1390 { "Right Sidetone", "Right", "ADCR" },
1391 { "DACR", NULL, "Right Sidetone" },
1392
1393 { "Left Bypass", NULL, "Class G" },
1394 { "Left Bypass", NULL, "Left Capture PGA" },
1395
1396 { "Right Bypass", NULL, "Class G" },
1397 { "Right Bypass", NULL, "Right Capture PGA" },
1398
1399 { "HPL Mux", "DAC", "DACL" },
1400 { "HPL Mux", "Bypass", "Left Bypass" },
1401
1402 { "HPR Mux", "DAC", "DACR" },
1403 { "HPR Mux", "Bypass", "Right Bypass" },
1404
1405 { "LINEL Mux", "DAC", "DACL" },
1406 { "LINEL Mux", "Bypass", "Left Bypass" },
1407
1408 { "LINER Mux", "DAC", "DACR" },
1409 { "LINER Mux", "Bypass", "Right Bypass" },
1410
1411 { "HPL PGA", NULL, "HPL Mux" },
1412 { "HPR PGA", NULL, "HPR Mux" },
1413
1414 { "LINEL PGA", NULL, "LINEL Mux" },
1415 { "LINER PGA", NULL, "LINER Mux" },
1416 };
1417
1418 static const struct snd_soc_dapm_route wm8912_intercon[] = {
1419 { "HPL PGA", NULL, "DACL" },
1420 { "HPR PGA", NULL, "DACR" },
1421
1422 { "LINEL PGA", NULL, "DACL" },
1423 { "LINER PGA", NULL, "DACR" },
1424 };
1425
1426 static int wm8904_add_widgets(struct snd_soc_codec *codec)
1427 {
1428 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1429 struct snd_soc_dapm_context *dapm = &codec->dapm;
1430
1431 snd_soc_dapm_new_controls(dapm, wm8904_core_dapm_widgets,
1432 ARRAY_SIZE(wm8904_core_dapm_widgets));
1433 snd_soc_dapm_add_routes(dapm, core_intercon,
1434 ARRAY_SIZE(core_intercon));
1435
1436 switch (wm8904->devtype) {
1437 case WM8904:
1438 snd_soc_add_controls(codec, wm8904_adc_snd_controls,
1439 ARRAY_SIZE(wm8904_adc_snd_controls));
1440 snd_soc_add_controls(codec, wm8904_dac_snd_controls,
1441 ARRAY_SIZE(wm8904_dac_snd_controls));
1442 snd_soc_add_controls(codec, wm8904_snd_controls,
1443 ARRAY_SIZE(wm8904_snd_controls));
1444
1445 snd_soc_dapm_new_controls(dapm, wm8904_adc_dapm_widgets,
1446 ARRAY_SIZE(wm8904_adc_dapm_widgets));
1447 snd_soc_dapm_new_controls(dapm, wm8904_dac_dapm_widgets,
1448 ARRAY_SIZE(wm8904_dac_dapm_widgets));
1449 snd_soc_dapm_new_controls(dapm, wm8904_dapm_widgets,
1450 ARRAY_SIZE(wm8904_dapm_widgets));
1451
1452 snd_soc_dapm_add_routes(dapm, core_intercon,
1453 ARRAY_SIZE(core_intercon));
1454 snd_soc_dapm_add_routes(dapm, adc_intercon,
1455 ARRAY_SIZE(adc_intercon));
1456 snd_soc_dapm_add_routes(dapm, dac_intercon,
1457 ARRAY_SIZE(dac_intercon));
1458 snd_soc_dapm_add_routes(dapm, wm8904_intercon,
1459 ARRAY_SIZE(wm8904_intercon));
1460 break;
1461
1462 case WM8912:
1463 snd_soc_add_controls(codec, wm8904_dac_snd_controls,
1464 ARRAY_SIZE(wm8904_dac_snd_controls));
1465
1466 snd_soc_dapm_new_controls(dapm, wm8904_dac_dapm_widgets,
1467 ARRAY_SIZE(wm8904_dac_dapm_widgets));
1468
1469 snd_soc_dapm_add_routes(dapm, dac_intercon,
1470 ARRAY_SIZE(dac_intercon));
1471 snd_soc_dapm_add_routes(dapm, wm8912_intercon,
1472 ARRAY_SIZE(wm8912_intercon));
1473 break;
1474 }
1475
1476 snd_soc_dapm_new_widgets(dapm);
1477 return 0;
1478 }
1479
1480 static struct {
1481 int ratio;
1482 unsigned int clk_sys_rate;
1483 } clk_sys_rates[] = {
1484 { 64, 0 },
1485 { 128, 1 },
1486 { 192, 2 },
1487 { 256, 3 },
1488 { 384, 4 },
1489 { 512, 5 },
1490 { 786, 6 },
1491 { 1024, 7 },
1492 { 1408, 8 },
1493 { 1536, 9 },
1494 };
1495
1496 static struct {
1497 int rate;
1498 int sample_rate;
1499 } sample_rates[] = {
1500 { 8000, 0 },
1501 { 11025, 1 },
1502 { 12000, 1 },
1503 { 16000, 2 },
1504 { 22050, 3 },
1505 { 24000, 3 },
1506 { 32000, 4 },
1507 { 44100, 5 },
1508 { 48000, 5 },
1509 };
1510
1511 static struct {
1512 int div; /* *10 due to .5s */
1513 int bclk_div;
1514 } bclk_divs[] = {
1515 { 10, 0 },
1516 { 15, 1 },
1517 { 20, 2 },
1518 { 30, 3 },
1519 { 40, 4 },
1520 { 50, 5 },
1521 { 55, 6 },
1522 { 60, 7 },
1523 { 80, 8 },
1524 { 100, 9 },
1525 { 110, 10 },
1526 { 120, 11 },
1527 { 160, 12 },
1528 { 200, 13 },
1529 { 220, 14 },
1530 { 240, 16 },
1531 { 200, 17 },
1532 { 320, 18 },
1533 { 440, 19 },
1534 { 480, 20 },
1535 };
1536
1537
1538 static int wm8904_hw_params(struct snd_pcm_substream *substream,
1539 struct snd_pcm_hw_params *params,
1540 struct snd_soc_dai *dai)
1541 {
1542 struct snd_soc_codec *codec = dai->codec;
1543 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1544 int ret, i, best, best_val, cur_val;
1545 unsigned int aif1 = 0;
1546 unsigned int aif2 = 0;
1547 unsigned int aif3 = 0;
1548 unsigned int clock1 = 0;
1549 unsigned int dac_digital1 = 0;
1550
1551 /* What BCLK do we need? */
1552 wm8904->fs = params_rate(params);
1553 if (wm8904->tdm_slots) {
1554 dev_dbg(codec->dev, "Configuring for %d %d bit TDM slots\n",
1555 wm8904->tdm_slots, wm8904->tdm_width);
1556 wm8904->bclk = snd_soc_calc_bclk(wm8904->fs,
1557 wm8904->tdm_width, 2,
1558 wm8904->tdm_slots);
1559 } else {
1560 wm8904->bclk = snd_soc_params_to_bclk(params);
1561 }
1562
1563 switch (params_format(params)) {
1564 case SNDRV_PCM_FORMAT_S16_LE:
1565 break;
1566 case SNDRV_PCM_FORMAT_S20_3LE:
1567 aif1 |= 0x40;
1568 break;
1569 case SNDRV_PCM_FORMAT_S24_LE:
1570 aif1 |= 0x80;
1571 break;
1572 case SNDRV_PCM_FORMAT_S32_LE:
1573 aif1 |= 0xc0;
1574 break;
1575 default:
1576 return -EINVAL;
1577 }
1578
1579
1580 dev_dbg(codec->dev, "Target BCLK is %dHz\n", wm8904->bclk);
1581
1582 ret = wm8904_configure_clocking(codec);
1583 if (ret != 0)
1584 return ret;
1585
1586 /* Select nearest CLK_SYS_RATE */
1587 best = 0;
1588 best_val = abs((wm8904->sysclk_rate / clk_sys_rates[0].ratio)
1589 - wm8904->fs);
1590 for (i = 1; i < ARRAY_SIZE(clk_sys_rates); i++) {
1591 cur_val = abs((wm8904->sysclk_rate /
1592 clk_sys_rates[i].ratio) - wm8904->fs);
1593 if (cur_val < best_val) {
1594 best = i;
1595 best_val = cur_val;
1596 }
1597 }
1598 dev_dbg(codec->dev, "Selected CLK_SYS_RATIO of %d\n",
1599 clk_sys_rates[best].ratio);
1600 clock1 |= (clk_sys_rates[best].clk_sys_rate
1601 << WM8904_CLK_SYS_RATE_SHIFT);
1602
1603 /* SAMPLE_RATE */
1604 best = 0;
1605 best_val = abs(wm8904->fs - sample_rates[0].rate);
1606 for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
1607 /* Closest match */
1608 cur_val = abs(wm8904->fs - sample_rates[i].rate);
1609 if (cur_val < best_val) {
1610 best = i;
1611 best_val = cur_val;
1612 }
1613 }
1614 dev_dbg(codec->dev, "Selected SAMPLE_RATE of %dHz\n",
1615 sample_rates[best].rate);
1616 clock1 |= (sample_rates[best].sample_rate
1617 << WM8904_SAMPLE_RATE_SHIFT);
1618
1619 /* Enable sloping stopband filter for low sample rates */
1620 if (wm8904->fs <= 24000)
1621 dac_digital1 |= WM8904_DAC_SB_FILT;
1622
1623 /* BCLK_DIV */
1624 best = 0;
1625 best_val = INT_MAX;
1626 for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
1627 cur_val = ((wm8904->sysclk_rate * 10) / bclk_divs[i].div)
1628 - wm8904->bclk;
1629 if (cur_val < 0) /* Table is sorted */
1630 break;
1631 if (cur_val < best_val) {
1632 best = i;
1633 best_val = cur_val;
1634 }
1635 }
1636 wm8904->bclk = (wm8904->sysclk_rate * 10) / bclk_divs[best].div;
1637 dev_dbg(codec->dev, "Selected BCLK_DIV of %d for %dHz BCLK\n",
1638 bclk_divs[best].div, wm8904->bclk);
1639 aif2 |= bclk_divs[best].bclk_div;
1640
1641 /* LRCLK is a simple fraction of BCLK */
1642 dev_dbg(codec->dev, "LRCLK_RATE is %d\n", wm8904->bclk / wm8904->fs);
1643 aif3 |= wm8904->bclk / wm8904->fs;
1644
1645 /* Apply the settings */
1646 snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1,
1647 WM8904_DAC_SB_FILT, dac_digital1);
1648 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1,
1649 WM8904_AIF_WL_MASK, aif1);
1650 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_2,
1651 WM8904_BCLK_DIV_MASK, aif2);
1652 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_3,
1653 WM8904_LRCLK_RATE_MASK, aif3);
1654 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_1,
1655 WM8904_SAMPLE_RATE_MASK |
1656 WM8904_CLK_SYS_RATE_MASK, clock1);
1657
1658 /* Update filters for the new settings */
1659 wm8904_set_retune_mobile(codec);
1660 wm8904_set_deemph(codec);
1661
1662 return 0;
1663 }
1664
1665
1666 static int wm8904_set_sysclk(struct snd_soc_dai *dai, int clk_id,
1667 unsigned int freq, int dir)
1668 {
1669 struct snd_soc_codec *codec = dai->codec;
1670 struct wm8904_priv *priv = snd_soc_codec_get_drvdata(codec);
1671
1672 switch (clk_id) {
1673 case WM8904_CLK_MCLK:
1674 priv->sysclk_src = clk_id;
1675 priv->mclk_rate = freq;
1676 break;
1677
1678 case WM8904_CLK_FLL:
1679 priv->sysclk_src = clk_id;
1680 break;
1681
1682 default:
1683 return -EINVAL;
1684 }
1685
1686 dev_dbg(dai->dev, "Clock source is %d at %uHz\n", clk_id, freq);
1687
1688 wm8904_configure_clocking(codec);
1689
1690 return 0;
1691 }
1692
1693 static int wm8904_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1694 {
1695 struct snd_soc_codec *codec = dai->codec;
1696 unsigned int aif1 = 0;
1697 unsigned int aif3 = 0;
1698
1699 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1700 case SND_SOC_DAIFMT_CBS_CFS:
1701 break;
1702 case SND_SOC_DAIFMT_CBS_CFM:
1703 aif3 |= WM8904_LRCLK_DIR;
1704 break;
1705 case SND_SOC_DAIFMT_CBM_CFS:
1706 aif1 |= WM8904_BCLK_DIR;
1707 break;
1708 case SND_SOC_DAIFMT_CBM_CFM:
1709 aif1 |= WM8904_BCLK_DIR;
1710 aif3 |= WM8904_LRCLK_DIR;
1711 break;
1712 default:
1713 return -EINVAL;
1714 }
1715
1716 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1717 case SND_SOC_DAIFMT_DSP_B:
1718 aif1 |= WM8904_AIF_LRCLK_INV;
1719 case SND_SOC_DAIFMT_DSP_A:
1720 aif1 |= 0x3;
1721 break;
1722 case SND_SOC_DAIFMT_I2S:
1723 aif1 |= 0x2;
1724 break;
1725 case SND_SOC_DAIFMT_RIGHT_J:
1726 break;
1727 case SND_SOC_DAIFMT_LEFT_J:
1728 aif1 |= 0x1;
1729 break;
1730 default:
1731 return -EINVAL;
1732 }
1733
1734 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1735 case SND_SOC_DAIFMT_DSP_A:
1736 case SND_SOC_DAIFMT_DSP_B:
1737 /* frame inversion not valid for DSP modes */
1738 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1739 case SND_SOC_DAIFMT_NB_NF:
1740 break;
1741 case SND_SOC_DAIFMT_IB_NF:
1742 aif1 |= WM8904_AIF_BCLK_INV;
1743 break;
1744 default:
1745 return -EINVAL;
1746 }
1747 break;
1748
1749 case SND_SOC_DAIFMT_I2S:
1750 case SND_SOC_DAIFMT_RIGHT_J:
1751 case SND_SOC_DAIFMT_LEFT_J:
1752 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1753 case SND_SOC_DAIFMT_NB_NF:
1754 break;
1755 case SND_SOC_DAIFMT_IB_IF:
1756 aif1 |= WM8904_AIF_BCLK_INV | WM8904_AIF_LRCLK_INV;
1757 break;
1758 case SND_SOC_DAIFMT_IB_NF:
1759 aif1 |= WM8904_AIF_BCLK_INV;
1760 break;
1761 case SND_SOC_DAIFMT_NB_IF:
1762 aif1 |= WM8904_AIF_LRCLK_INV;
1763 break;
1764 default:
1765 return -EINVAL;
1766 }
1767 break;
1768 default:
1769 return -EINVAL;
1770 }
1771
1772 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1,
1773 WM8904_AIF_BCLK_INV | WM8904_AIF_LRCLK_INV |
1774 WM8904_AIF_FMT_MASK | WM8904_BCLK_DIR, aif1);
1775 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_3,
1776 WM8904_LRCLK_DIR, aif3);
1777
1778 return 0;
1779 }
1780
1781
1782 static int wm8904_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
1783 unsigned int rx_mask, int slots, int slot_width)
1784 {
1785 struct snd_soc_codec *codec = dai->codec;
1786 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1787 int aif1 = 0;
1788
1789 /* Don't need to validate anything if we're turning off TDM */
1790 if (slots == 0)
1791 goto out;
1792
1793 /* Note that we allow configurations we can't handle ourselves -
1794 * for example, we can generate clocks for slots 2 and up even if
1795 * we can't use those slots ourselves.
1796 */
1797 aif1 |= WM8904_AIFADC_TDM | WM8904_AIFDAC_TDM;
1798
1799 switch (rx_mask) {
1800 case 3:
1801 break;
1802 case 0xc:
1803 aif1 |= WM8904_AIFADC_TDM_CHAN;
1804 break;
1805 default:
1806 return -EINVAL;
1807 }
1808
1809
1810 switch (tx_mask) {
1811 case 3:
1812 break;
1813 case 0xc:
1814 aif1 |= WM8904_AIFDAC_TDM_CHAN;
1815 break;
1816 default:
1817 return -EINVAL;
1818 }
1819
1820 out:
1821 wm8904->tdm_width = slot_width;
1822 wm8904->tdm_slots = slots / 2;
1823
1824 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1,
1825 WM8904_AIFADC_TDM | WM8904_AIFADC_TDM_CHAN |
1826 WM8904_AIFDAC_TDM | WM8904_AIFDAC_TDM_CHAN, aif1);
1827
1828 return 0;
1829 }
1830
1831 struct _fll_div {
1832 u16 fll_fratio;
1833 u16 fll_outdiv;
1834 u16 fll_clk_ref_div;
1835 u16 n;
1836 u16 k;
1837 };
1838
1839 /* The size in bits of the FLL divide multiplied by 10
1840 * to allow rounding later */
1841 #define FIXED_FLL_SIZE ((1 << 16) * 10)
1842
1843 static struct {
1844 unsigned int min;
1845 unsigned int max;
1846 u16 fll_fratio;
1847 int ratio;
1848 } fll_fratios[] = {
1849 { 0, 64000, 4, 16 },
1850 { 64000, 128000, 3, 8 },
1851 { 128000, 256000, 2, 4 },
1852 { 256000, 1000000, 1, 2 },
1853 { 1000000, 13500000, 0, 1 },
1854 };
1855
1856 static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
1857 unsigned int Fout)
1858 {
1859 u64 Kpart;
1860 unsigned int K, Ndiv, Nmod, target;
1861 unsigned int div;
1862 int i;
1863
1864 /* Fref must be <=13.5MHz */
1865 div = 1;
1866 fll_div->fll_clk_ref_div = 0;
1867 while ((Fref / div) > 13500000) {
1868 div *= 2;
1869 fll_div->fll_clk_ref_div++;
1870
1871 if (div > 8) {
1872 pr_err("Can't scale %dMHz input down to <=13.5MHz\n",
1873 Fref);
1874 return -EINVAL;
1875 }
1876 }
1877
1878 pr_debug("Fref=%u Fout=%u\n", Fref, Fout);
1879
1880 /* Apply the division for our remaining calculations */
1881 Fref /= div;
1882
1883 /* Fvco should be 90-100MHz; don't check the upper bound */
1884 div = 4;
1885 while (Fout * div < 90000000) {
1886 div++;
1887 if (div > 64) {
1888 pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n",
1889 Fout);
1890 return -EINVAL;
1891 }
1892 }
1893 target = Fout * div;
1894 fll_div->fll_outdiv = div - 1;
1895
1896 pr_debug("Fvco=%dHz\n", target);
1897
1898 /* Find an appropriate FLL_FRATIO and factor it out of the target */
1899 for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
1900 if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
1901 fll_div->fll_fratio = fll_fratios[i].fll_fratio;
1902 target /= fll_fratios[i].ratio;
1903 break;
1904 }
1905 }
1906 if (i == ARRAY_SIZE(fll_fratios)) {
1907 pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref);
1908 return -EINVAL;
1909 }
1910
1911 /* Now, calculate N.K */
1912 Ndiv = target / Fref;
1913
1914 fll_div->n = Ndiv;
1915 Nmod = target % Fref;
1916 pr_debug("Nmod=%d\n", Nmod);
1917
1918 /* Calculate fractional part - scale up so we can round. */
1919 Kpart = FIXED_FLL_SIZE * (long long)Nmod;
1920
1921 do_div(Kpart, Fref);
1922
1923 K = Kpart & 0xFFFFFFFF;
1924
1925 if ((K % 10) >= 5)
1926 K += 5;
1927
1928 /* Move down to proper range now rounding is done */
1929 fll_div->k = K / 10;
1930
1931 pr_debug("N=%x K=%x FLL_FRATIO=%x FLL_OUTDIV=%x FLL_CLK_REF_DIV=%x\n",
1932 fll_div->n, fll_div->k,
1933 fll_div->fll_fratio, fll_div->fll_outdiv,
1934 fll_div->fll_clk_ref_div);
1935
1936 return 0;
1937 }
1938
1939 static int wm8904_set_fll(struct snd_soc_dai *dai, int fll_id, int source,
1940 unsigned int Fref, unsigned int Fout)
1941 {
1942 struct snd_soc_codec *codec = dai->codec;
1943 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1944 struct _fll_div fll_div;
1945 int ret, val;
1946 int clock2, fll1;
1947
1948 /* Any change? */
1949 if (source == wm8904->fll_src && Fref == wm8904->fll_fref &&
1950 Fout == wm8904->fll_fout)
1951 return 0;
1952
1953 clock2 = snd_soc_read(codec, WM8904_CLOCK_RATES_2);
1954
1955 if (Fout == 0) {
1956 dev_dbg(codec->dev, "FLL disabled\n");
1957
1958 wm8904->fll_fref = 0;
1959 wm8904->fll_fout = 0;
1960
1961 /* Gate SYSCLK to avoid glitches */
1962 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
1963 WM8904_CLK_SYS_ENA, 0);
1964
1965 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
1966 WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0);
1967
1968 goto out;
1969 }
1970
1971 /* Validate the FLL ID */
1972 switch (source) {
1973 case WM8904_FLL_MCLK:
1974 case WM8904_FLL_LRCLK:
1975 case WM8904_FLL_BCLK:
1976 ret = fll_factors(&fll_div, Fref, Fout);
1977 if (ret != 0)
1978 return ret;
1979 break;
1980
1981 case WM8904_FLL_FREE_RUNNING:
1982 dev_dbg(codec->dev, "Using free running FLL\n");
1983 /* Force 12MHz and output/4 for now */
1984 Fout = 12000000;
1985 Fref = 12000000;
1986
1987 memset(&fll_div, 0, sizeof(fll_div));
1988 fll_div.fll_outdiv = 3;
1989 break;
1990
1991 default:
1992 dev_err(codec->dev, "Unknown FLL ID %d\n", fll_id);
1993 return -EINVAL;
1994 }
1995
1996 /* Save current state then disable the FLL and SYSCLK to avoid
1997 * misclocking */
1998 fll1 = snd_soc_read(codec, WM8904_FLL_CONTROL_1);
1999 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
2000 WM8904_CLK_SYS_ENA, 0);
2001 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
2002 WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0);
2003
2004 /* Unlock forced oscilator control to switch it on/off */
2005 snd_soc_update_bits(codec, WM8904_CONTROL_INTERFACE_TEST_1,
2006 WM8904_USER_KEY, WM8904_USER_KEY);
2007
2008 if (fll_id == WM8904_FLL_FREE_RUNNING) {
2009 val = WM8904_FLL_FRC_NCO;
2010 } else {
2011 val = 0;
2012 }
2013
2014 snd_soc_update_bits(codec, WM8904_FLL_NCO_TEST_1, WM8904_FLL_FRC_NCO,
2015 val);
2016 snd_soc_update_bits(codec, WM8904_CONTROL_INTERFACE_TEST_1,
2017 WM8904_USER_KEY, 0);
2018
2019 switch (fll_id) {
2020 case WM8904_FLL_MCLK:
2021 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5,
2022 WM8904_FLL_CLK_REF_SRC_MASK, 0);
2023 break;
2024
2025 case WM8904_FLL_LRCLK:
2026 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5,
2027 WM8904_FLL_CLK_REF_SRC_MASK, 1);
2028 break;
2029
2030 case WM8904_FLL_BCLK:
2031 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5,
2032 WM8904_FLL_CLK_REF_SRC_MASK, 2);
2033 break;
2034 }
2035
2036 if (fll_div.k)
2037 val = WM8904_FLL_FRACN_ENA;
2038 else
2039 val = 0;
2040 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
2041 WM8904_FLL_FRACN_ENA, val);
2042
2043 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_2,
2044 WM8904_FLL_OUTDIV_MASK | WM8904_FLL_FRATIO_MASK,
2045 (fll_div.fll_outdiv << WM8904_FLL_OUTDIV_SHIFT) |
2046 (fll_div.fll_fratio << WM8904_FLL_FRATIO_SHIFT));
2047
2048 snd_soc_write(codec, WM8904_FLL_CONTROL_3, fll_div.k);
2049
2050 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_4, WM8904_FLL_N_MASK,
2051 fll_div.n << WM8904_FLL_N_SHIFT);
2052
2053 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5,
2054 WM8904_FLL_CLK_REF_DIV_MASK,
2055 fll_div.fll_clk_ref_div
2056 << WM8904_FLL_CLK_REF_DIV_SHIFT);
2057
2058 dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);
2059
2060 wm8904->fll_fref = Fref;
2061 wm8904->fll_fout = Fout;
2062 wm8904->fll_src = source;
2063
2064 /* Enable the FLL if it was previously active */
2065 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
2066 WM8904_FLL_OSC_ENA, fll1);
2067 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
2068 WM8904_FLL_ENA, fll1);
2069
2070 out:
2071 /* Reenable SYSCLK if it was previously active */
2072 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
2073 WM8904_CLK_SYS_ENA, clock2);
2074
2075 return 0;
2076 }
2077
2078 static int wm8904_digital_mute(struct snd_soc_dai *codec_dai, int mute)
2079 {
2080 struct snd_soc_codec *codec = codec_dai->codec;
2081 int val;
2082
2083 if (mute)
2084 val = WM8904_DAC_MUTE;
2085 else
2086 val = 0;
2087
2088 snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1, WM8904_DAC_MUTE, val);
2089
2090 return 0;
2091 }
2092
2093 static void wm8904_sync_cache(struct snd_soc_codec *codec)
2094 {
2095 u16 *reg_cache = codec->reg_cache;
2096 int i;
2097
2098 if (!codec->cache_sync)
2099 return;
2100
2101 codec->cache_only = 0;
2102
2103 /* Sync back cached values if they're different from the
2104 * hardware default.
2105 */
2106 for (i = 1; i < codec->driver->reg_cache_size; i++) {
2107 if (!wm8904_access[i].writable)
2108 continue;
2109
2110 if (reg_cache[i] == wm8904_reg[i])
2111 continue;
2112
2113 snd_soc_write(codec, i, reg_cache[i]);
2114 }
2115
2116 codec->cache_sync = 0;
2117 }
2118
2119 static int wm8904_set_bias_level(struct snd_soc_codec *codec,
2120 enum snd_soc_bias_level level)
2121 {
2122 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
2123 int ret;
2124
2125 switch (level) {
2126 case SND_SOC_BIAS_ON:
2127 break;
2128
2129 case SND_SOC_BIAS_PREPARE:
2130 /* VMID resistance 2*50k */
2131 snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0,
2132 WM8904_VMID_RES_MASK,
2133 0x1 << WM8904_VMID_RES_SHIFT);
2134
2135 /* Normal bias current */
2136 snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
2137 WM8904_ISEL_MASK, 2 << WM8904_ISEL_SHIFT);
2138 break;
2139
2140 case SND_SOC_BIAS_STANDBY:
2141 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
2142 ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies),
2143 wm8904->supplies);
2144 if (ret != 0) {
2145 dev_err(codec->dev,
2146 "Failed to enable supplies: %d\n",
2147 ret);
2148 return ret;
2149 }
2150
2151 wm8904_sync_cache(codec);
2152
2153 /* Enable bias */
2154 snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
2155 WM8904_BIAS_ENA, WM8904_BIAS_ENA);
2156
2157 /* Enable VMID, VMID buffering, 2*5k resistance */
2158 snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0,
2159 WM8904_VMID_ENA |
2160 WM8904_VMID_RES_MASK,
2161 WM8904_VMID_ENA |
2162 0x3 << WM8904_VMID_RES_SHIFT);
2163
2164 /* Let VMID ramp */
2165 msleep(1);
2166 }
2167
2168 /* Maintain VMID with 2*250k */
2169 snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0,
2170 WM8904_VMID_RES_MASK,
2171 0x2 << WM8904_VMID_RES_SHIFT);
2172
2173 /* Bias current *0.5 */
2174 snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
2175 WM8904_ISEL_MASK, 0);
2176 break;
2177
2178 case SND_SOC_BIAS_OFF:
2179 /* Turn off VMID */
2180 snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0,
2181 WM8904_VMID_RES_MASK | WM8904_VMID_ENA, 0);
2182
2183 /* Stop bias generation */
2184 snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
2185 WM8904_BIAS_ENA, 0);
2186
2187 #ifdef CONFIG_REGULATOR
2188 /* Post 2.6.34 we will be able to get a callback when
2189 * the regulators are disabled which we can use but
2190 * for now just assume that the power will be cut if
2191 * the regulator API is in use.
2192 */
2193 codec->cache_sync = 1;
2194 #endif
2195
2196 regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies),
2197 wm8904->supplies);
2198 break;
2199 }
2200 codec->dapm.bias_level = level;
2201 return 0;
2202 }
2203
2204 #define WM8904_RATES SNDRV_PCM_RATE_8000_96000
2205
2206 #define WM8904_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
2207 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
2208
2209 static struct snd_soc_dai_ops wm8904_dai_ops = {
2210 .set_sysclk = wm8904_set_sysclk,
2211 .set_fmt = wm8904_set_fmt,
2212 .set_tdm_slot = wm8904_set_tdm_slot,
2213 .set_pll = wm8904_set_fll,
2214 .hw_params = wm8904_hw_params,
2215 .digital_mute = wm8904_digital_mute,
2216 };
2217
2218 static struct snd_soc_dai_driver wm8904_dai = {
2219 .name = "wm8904-hifi",
2220 .playback = {
2221 .stream_name = "Playback",
2222 .channels_min = 2,
2223 .channels_max = 2,
2224 .rates = WM8904_RATES,
2225 .formats = WM8904_FORMATS,
2226 },
2227 .capture = {
2228 .stream_name = "Capture",
2229 .channels_min = 2,
2230 .channels_max = 2,
2231 .rates = WM8904_RATES,
2232 .formats = WM8904_FORMATS,
2233 },
2234 .ops = &wm8904_dai_ops,
2235 .symmetric_rates = 1,
2236 };
2237
2238 #ifdef CONFIG_PM
2239 static int wm8904_suspend(struct snd_soc_codec *codec, pm_message_t state)
2240 {
2241 wm8904_set_bias_level(codec, SND_SOC_BIAS_OFF);
2242
2243 return 0;
2244 }
2245
2246 static int wm8904_resume(struct snd_soc_codec *codec)
2247 {
2248 wm8904_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
2249
2250 return 0;
2251 }
2252 #else
2253 #define wm8904_suspend NULL
2254 #define wm8904_resume NULL
2255 #endif
2256
2257 static void wm8904_handle_retune_mobile_pdata(struct snd_soc_codec *codec)
2258 {
2259 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
2260 struct wm8904_pdata *pdata = wm8904->pdata;
2261 struct snd_kcontrol_new control =
2262 SOC_ENUM_EXT("EQ Mode",
2263 wm8904->retune_mobile_enum,
2264 wm8904_get_retune_mobile_enum,
2265 wm8904_put_retune_mobile_enum);
2266 int ret, i, j;
2267 const char **t;
2268
2269 /* We need an array of texts for the enum API but the number
2270 * of texts is likely to be less than the number of
2271 * configurations due to the sample rate dependency of the
2272 * configurations. */
2273 wm8904->num_retune_mobile_texts = 0;
2274 wm8904->retune_mobile_texts = NULL;
2275 for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) {
2276 for (j = 0; j < wm8904->num_retune_mobile_texts; j++) {
2277 if (strcmp(pdata->retune_mobile_cfgs[i].name,
2278 wm8904->retune_mobile_texts[j]) == 0)
2279 break;
2280 }
2281
2282 if (j != wm8904->num_retune_mobile_texts)
2283 continue;
2284
2285 /* Expand the array... */
2286 t = krealloc(wm8904->retune_mobile_texts,
2287 sizeof(char *) *
2288 (wm8904->num_retune_mobile_texts + 1),
2289 GFP_KERNEL);
2290 if (t == NULL)
2291 continue;
2292
2293 /* ...store the new entry... */
2294 t[wm8904->num_retune_mobile_texts] =
2295 pdata->retune_mobile_cfgs[i].name;
2296
2297 /* ...and remember the new version. */
2298 wm8904->num_retune_mobile_texts++;
2299 wm8904->retune_mobile_texts = t;
2300 }
2301
2302 dev_dbg(codec->dev, "Allocated %d unique ReTune Mobile names\n",
2303 wm8904->num_retune_mobile_texts);
2304
2305 wm8904->retune_mobile_enum.max = wm8904->num_retune_mobile_texts;
2306 wm8904->retune_mobile_enum.texts = wm8904->retune_mobile_texts;
2307
2308 ret = snd_soc_add_controls(codec, &control, 1);
2309 if (ret != 0)
2310 dev_err(codec->dev,
2311 "Failed to add ReTune Mobile control: %d\n", ret);
2312 }
2313
2314 static void wm8904_handle_pdata(struct snd_soc_codec *codec)
2315 {
2316 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
2317 struct wm8904_pdata *pdata = wm8904->pdata;
2318 int ret, i;
2319
2320 if (!pdata) {
2321 snd_soc_add_controls(codec, wm8904_eq_controls,
2322 ARRAY_SIZE(wm8904_eq_controls));
2323 return;
2324 }
2325
2326 dev_dbg(codec->dev, "%d DRC configurations\n", pdata->num_drc_cfgs);
2327
2328 if (pdata->num_drc_cfgs) {
2329 struct snd_kcontrol_new control =
2330 SOC_ENUM_EXT("DRC Mode", wm8904->drc_enum,
2331 wm8904_get_drc_enum, wm8904_put_drc_enum);
2332
2333 /* We need an array of texts for the enum API */
2334 wm8904->drc_texts = kmalloc(sizeof(char *)
2335 * pdata->num_drc_cfgs, GFP_KERNEL);
2336 if (!wm8904->drc_texts) {
2337 dev_err(codec->dev,
2338 "Failed to allocate %d DRC config texts\n",
2339 pdata->num_drc_cfgs);
2340 return;
2341 }
2342
2343 for (i = 0; i < pdata->num_drc_cfgs; i++)
2344 wm8904->drc_texts[i] = pdata->drc_cfgs[i].name;
2345
2346 wm8904->drc_enum.max = pdata->num_drc_cfgs;
2347 wm8904->drc_enum.texts = wm8904->drc_texts;
2348
2349 ret = snd_soc_add_controls(codec, &control, 1);
2350 if (ret != 0)
2351 dev_err(codec->dev,
2352 "Failed to add DRC mode control: %d\n", ret);
2353
2354 wm8904_set_drc(codec);
2355 }
2356
2357 dev_dbg(codec->dev, "%d ReTune Mobile configurations\n",
2358 pdata->num_retune_mobile_cfgs);
2359
2360 if (pdata->num_retune_mobile_cfgs)
2361 wm8904_handle_retune_mobile_pdata(codec);
2362 else
2363 snd_soc_add_controls(codec, wm8904_eq_controls,
2364 ARRAY_SIZE(wm8904_eq_controls));
2365 }
2366
2367
2368 static int wm8904_probe(struct snd_soc_codec *codec)
2369 {
2370 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
2371 struct wm8904_pdata *pdata = wm8904->pdata;
2372 u16 *reg_cache = codec->reg_cache;
2373 int ret, i;
2374
2375 codec->cache_sync = 1;
2376 codec->dapm.idle_bias_off = 1;
2377
2378 switch (wm8904->devtype) {
2379 case WM8904:
2380 break;
2381 case WM8912:
2382 memset(&wm8904_dai.capture, 0, sizeof(wm8904_dai.capture));
2383 break;
2384 default:
2385 dev_err(codec->dev, "Unknown device type %d\n",
2386 wm8904->devtype);
2387 return -EINVAL;
2388 }
2389
2390 ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);
2391 if (ret != 0) {
2392 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
2393 return ret;
2394 }
2395
2396 for (i = 0; i < ARRAY_SIZE(wm8904->supplies); i++)
2397 wm8904->supplies[i].supply = wm8904_supply_names[i];
2398
2399 ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8904->supplies),
2400 wm8904->supplies);
2401 if (ret != 0) {
2402 dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
2403 return ret;
2404 }
2405
2406 ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies),
2407 wm8904->supplies);
2408 if (ret != 0) {
2409 dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
2410 goto err_get;
2411 }
2412
2413 ret = snd_soc_read(codec, WM8904_SW_RESET_AND_ID);
2414 if (ret < 0) {
2415 dev_err(codec->dev, "Failed to read ID register\n");
2416 goto err_enable;
2417 }
2418 if (ret != wm8904_reg[WM8904_SW_RESET_AND_ID]) {
2419 dev_err(codec->dev, "Device is not a WM8904, ID is %x\n", ret);
2420 ret = -EINVAL;
2421 goto err_enable;
2422 }
2423
2424 ret = snd_soc_read(codec, WM8904_REVISION);
2425 if (ret < 0) {
2426 dev_err(codec->dev, "Failed to read device revision: %d\n",
2427 ret);
2428 goto err_enable;
2429 }
2430 dev_info(codec->dev, "revision %c\n", ret + 'A');
2431
2432 ret = wm8904_reset(codec);
2433 if (ret < 0) {
2434 dev_err(codec->dev, "Failed to issue reset\n");
2435 goto err_enable;
2436 }
2437
2438 /* Change some default settings - latch VU and enable ZC */
2439 snd_soc_update_bits(codec, WM8904_ADC_DIGITAL_VOLUME_LEFT,
2440 WM8904_ADC_VU, WM8904_ADC_VU);
2441 snd_soc_update_bits(codec, WM8904_ADC_DIGITAL_VOLUME_RIGHT,
2442 WM8904_ADC_VU, WM8904_ADC_VU);
2443 snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_VOLUME_LEFT,
2444 WM8904_DAC_VU, WM8904_DAC_VU);
2445 snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_VOLUME_RIGHT,
2446 WM8904_DAC_VU, WM8904_DAC_VU);
2447 snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT1_LEFT,
2448 WM8904_HPOUT_VU | WM8904_HPOUTLZC,
2449 WM8904_HPOUT_VU | WM8904_HPOUTLZC);
2450 snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT1_RIGHT,
2451 WM8904_HPOUT_VU | WM8904_HPOUTRZC,
2452 WM8904_HPOUT_VU | WM8904_HPOUTRZC);
2453 snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT2_LEFT,
2454 WM8904_LINEOUT_VU | WM8904_LINEOUTLZC,
2455 WM8904_LINEOUT_VU | WM8904_LINEOUTLZC);
2456 snd_soc_update_bits(codec, WM8904_ANALOGUE_OUT2_RIGHT,
2457 WM8904_LINEOUT_VU | WM8904_LINEOUTRZC,
2458 WM8904_LINEOUT_VU | WM8904_LINEOUTRZC);
2459 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_0,
2460 WM8904_SR_MODE, 0);
2461
2462 /* Apply configuration from the platform data. */
2463 if (wm8904->pdata) {
2464 for (i = 0; i < WM8904_GPIO_REGS; i++) {
2465 if (!pdata->gpio_cfg[i])
2466 continue;
2467
2468 reg_cache[WM8904_GPIO_CONTROL_1 + i]
2469 = pdata->gpio_cfg[i] & 0xffff;
2470 }
2471
2472 /* Zero is the default value for these anyway */
2473 for (i = 0; i < WM8904_MIC_REGS; i++)
2474 reg_cache[WM8904_MIC_BIAS_CONTROL_0 + i]
2475 = pdata->mic_cfg[i];
2476 }
2477
2478 /* Set Class W by default - this will be managed by the Class
2479 * G widget at runtime where bypass paths are available.
2480 */
2481 snd_soc_update_bits(codec, WM8904_CLASS_W_0,
2482 WM8904_CP_DYN_PWR, WM8904_CP_DYN_PWR);
2483
2484 /* Use normal bias source */
2485 snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
2486 WM8904_POBCTRL, 0);
2487
2488 wm8904_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
2489
2490 /* Bias level configuration will have done an extra enable */
2491 regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies);
2492
2493 wm8904_handle_pdata(codec);
2494
2495 wm8904_add_widgets(codec);
2496
2497 return 0;
2498
2499 err_enable:
2500 regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies);
2501 err_get:
2502 regulator_bulk_free(ARRAY_SIZE(wm8904->supplies), wm8904->supplies);
2503 return ret;
2504 }
2505
2506 static int wm8904_remove(struct snd_soc_codec *codec)
2507 {
2508 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
2509
2510 wm8904_set_bias_level(codec, SND_SOC_BIAS_OFF);
2511 regulator_bulk_free(ARRAY_SIZE(wm8904->supplies), wm8904->supplies);
2512 kfree(wm8904->retune_mobile_texts);
2513 kfree(wm8904->drc_texts);
2514
2515 return 0;
2516 }
2517
2518 static struct snd_soc_codec_driver soc_codec_dev_wm8904 = {
2519 .probe = wm8904_probe,
2520 .remove = wm8904_remove,
2521 .suspend = wm8904_suspend,
2522 .resume = wm8904_resume,
2523 .set_bias_level = wm8904_set_bias_level,
2524 .reg_cache_size = ARRAY_SIZE(wm8904_reg),
2525 .reg_word_size = sizeof(u16),
2526 .reg_cache_default = wm8904_reg,
2527 .volatile_register = wm8904_volatile_register,
2528 };
2529
2530 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
2531 static __devinit int wm8904_i2c_probe(struct i2c_client *i2c,
2532 const struct i2c_device_id *id)
2533 {
2534 struct wm8904_priv *wm8904;
2535 int ret;
2536
2537 wm8904 = kzalloc(sizeof(struct wm8904_priv), GFP_KERNEL);
2538 if (wm8904 == NULL)
2539 return -ENOMEM;
2540
2541 wm8904->devtype = id->driver_data;
2542 i2c_set_clientdata(i2c, wm8904);
2543 wm8904->control_data = i2c;
2544 wm8904->pdata = i2c->dev.platform_data;
2545
2546 ret = snd_soc_register_codec(&i2c->dev,
2547 &soc_codec_dev_wm8904, &wm8904_dai, 1);
2548 if (ret < 0)
2549 kfree(wm8904);
2550 return ret;
2551 }
2552
2553 static __devexit int wm8904_i2c_remove(struct i2c_client *client)
2554 {
2555 snd_soc_unregister_codec(&client->dev);
2556 kfree(i2c_get_clientdata(client));
2557 return 0;
2558 }
2559
2560 static const struct i2c_device_id wm8904_i2c_id[] = {
2561 { "wm8904", WM8904 },
2562 { "wm8912", WM8912 },
2563 { "wm8918", WM8904 }, /* Actually a subset, updates to follow */
2564 { }
2565 };
2566 MODULE_DEVICE_TABLE(i2c, wm8904_i2c_id);
2567
2568 static struct i2c_driver wm8904_i2c_driver = {
2569 .driver = {
2570 .name = "wm8904-codec",
2571 .owner = THIS_MODULE,
2572 },
2573 .probe = wm8904_i2c_probe,
2574 .remove = __devexit_p(wm8904_i2c_remove),
2575 .id_table = wm8904_i2c_id,
2576 };
2577 #endif
2578
2579 static int __init wm8904_modinit(void)
2580 {
2581 int ret = 0;
2582 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
2583 ret = i2c_add_driver(&wm8904_i2c_driver);
2584 if (ret != 0) {
2585 printk(KERN_ERR "Failed to register wm8904 I2C driver: %d\n",
2586 ret);
2587 }
2588 #endif
2589 return ret;
2590 }
2591 module_init(wm8904_modinit);
2592
2593 static void __exit wm8904_exit(void)
2594 {
2595 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
2596 i2c_del_driver(&wm8904_i2c_driver);
2597 #endif
2598 }
2599 module_exit(wm8904_exit);
2600
2601 MODULE_DESCRIPTION("ASoC WM8904 driver");
2602 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
2603 MODULE_LICENSE("GPL");
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