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staging: xgifb: vb_setmode: make XGI_SetXG27FPBits() static
[linux/fpc-iii.git] / sound / soc / codecs / wm8580.c
blob8212b3c8bfdd90da61cfe426344c13aa6deadae8
1 /*
2 * wm8580.c -- WM8580 ALSA Soc Audio driver
3 *
4 * Copyright 2008, 2009 Wolfson Microelectronics PLC.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 *
11 * Notes:
12 * The WM8580 is a multichannel codec with S/PDIF support, featuring six
13 * DAC channels and two ADC channels.
14 *
15 * Currently only the primary audio interface is supported - S/PDIF and
16 * the secondary audio interfaces are not.
17 */
18
19 #include <linux/module.h>
20 #include <linux/moduleparam.h>
21 #include <linux/kernel.h>
22 #include <linux/init.h>
23 #include <linux/delay.h>
24 #include <linux/pm.h>
25 #include <linux/i2c.h>
26 #include <linux/platform_device.h>
27 #include <linux/regulator/consumer.h>
28 #include <linux/slab.h>
29 #include <linux/of_device.h>
30
31 #include <sound/core.h>
32 #include <sound/pcm.h>
33 #include <sound/pcm_params.h>
34 #include <sound/soc.h>
35 #include <sound/tlv.h>
36 #include <sound/initval.h>
37 #include <asm/div64.h>
38
39 #include "wm8580.h"
40
41 /* WM8580 register space */
42 #define WM8580_PLLA1 0x00
43 #define WM8580_PLLA2 0x01
44 #define WM8580_PLLA3 0x02
45 #define WM8580_PLLA4 0x03
46 #define WM8580_PLLB1 0x04
47 #define WM8580_PLLB2 0x05
48 #define WM8580_PLLB3 0x06
49 #define WM8580_PLLB4 0x07
50 #define WM8580_CLKSEL 0x08
51 #define WM8580_PAIF1 0x09
52 #define WM8580_PAIF2 0x0A
53 #define WM8580_SAIF1 0x0B
54 #define WM8580_PAIF3 0x0C
55 #define WM8580_PAIF4 0x0D
56 #define WM8580_SAIF2 0x0E
57 #define WM8580_DAC_CONTROL1 0x0F
58 #define WM8580_DAC_CONTROL2 0x10
59 #define WM8580_DAC_CONTROL3 0x11
60 #define WM8580_DAC_CONTROL4 0x12
61 #define WM8580_DAC_CONTROL5 0x13
62 #define WM8580_DIGITAL_ATTENUATION_DACL1 0x14
63 #define WM8580_DIGITAL_ATTENUATION_DACR1 0x15
64 #define WM8580_DIGITAL_ATTENUATION_DACL2 0x16
65 #define WM8580_DIGITAL_ATTENUATION_DACR2 0x17
66 #define WM8580_DIGITAL_ATTENUATION_DACL3 0x18
67 #define WM8580_DIGITAL_ATTENUATION_DACR3 0x19
68 #define WM8580_MASTER_DIGITAL_ATTENUATION 0x1C
69 #define WM8580_ADC_CONTROL1 0x1D
70 #define WM8580_SPDTXCHAN0 0x1E
71 #define WM8580_SPDTXCHAN1 0x1F
72 #define WM8580_SPDTXCHAN2 0x20
73 #define WM8580_SPDTXCHAN3 0x21
74 #define WM8580_SPDTXCHAN4 0x22
75 #define WM8580_SPDTXCHAN5 0x23
76 #define WM8580_SPDMODE 0x24
77 #define WM8580_INTMASK 0x25
78 #define WM8580_GPO1 0x26
79 #define WM8580_GPO2 0x27
80 #define WM8580_GPO3 0x28
81 #define WM8580_GPO4 0x29
82 #define WM8580_GPO5 0x2A
83 #define WM8580_INTSTAT 0x2B
84 #define WM8580_SPDRXCHAN1 0x2C
85 #define WM8580_SPDRXCHAN2 0x2D
86 #define WM8580_SPDRXCHAN3 0x2E
87 #define WM8580_SPDRXCHAN4 0x2F
88 #define WM8580_SPDRXCHAN5 0x30
89 #define WM8580_SPDSTAT 0x31
90 #define WM8580_PWRDN1 0x32
91 #define WM8580_PWRDN2 0x33
92 #define WM8580_READBACK 0x34
93 #define WM8580_RESET 0x35
94
95 #define WM8580_MAX_REGISTER 0x35
96
97 #define WM8580_DACOSR 0x40
98
99 /* PLLB4 (register 7h) */
100 #define WM8580_PLLB4_MCLKOUTSRC_MASK 0x60
101 #define WM8580_PLLB4_MCLKOUTSRC_PLLA 0x20
102 #define WM8580_PLLB4_MCLKOUTSRC_PLLB 0x40
103 #define WM8580_PLLB4_MCLKOUTSRC_OSC 0x60
104
105 #define WM8580_PLLB4_CLKOUTSRC_MASK 0x180
106 #define WM8580_PLLB4_CLKOUTSRC_PLLACLK 0x080
107 #define WM8580_PLLB4_CLKOUTSRC_PLLBCLK 0x100
108 #define WM8580_PLLB4_CLKOUTSRC_OSCCLK 0x180
109
110 /* CLKSEL (register 8h) */
111 #define WM8580_CLKSEL_DAC_CLKSEL_MASK 0x03
112 #define WM8580_CLKSEL_DAC_CLKSEL_PLLA 0x01
113 #define WM8580_CLKSEL_DAC_CLKSEL_PLLB 0x02
114
115 /* AIF control 1 (registers 9h-bh) */
116 #define WM8580_AIF_RATE_MASK 0x7
117 #define WM8580_AIF_BCLKSEL_MASK 0x18
118
119 #define WM8580_AIF_MS 0x20
120
121 #define WM8580_AIF_CLKSRC_MASK 0xc0
122 #define WM8580_AIF_CLKSRC_PLLA 0x40
123 #define WM8580_AIF_CLKSRC_PLLB 0x40
124 #define WM8580_AIF_CLKSRC_MCLK 0xc0
125
126 /* AIF control 2 (registers ch-eh) */
127 #define WM8580_AIF_FMT_MASK 0x03
128 #define WM8580_AIF_FMT_RIGHTJ 0x00
129 #define WM8580_AIF_FMT_LEFTJ 0x01
130 #define WM8580_AIF_FMT_I2S 0x02
131 #define WM8580_AIF_FMT_DSP 0x03
132
133 #define WM8580_AIF_LENGTH_MASK 0x0c
134 #define WM8580_AIF_LENGTH_16 0x00
135 #define WM8580_AIF_LENGTH_20 0x04
136 #define WM8580_AIF_LENGTH_24 0x08
137 #define WM8580_AIF_LENGTH_32 0x0c
138
139 #define WM8580_AIF_LRP 0x10
140 #define WM8580_AIF_BCP 0x20
141
142 /* Powerdown Register 1 (register 32h) */
143 #define WM8580_PWRDN1_PWDN 0x001
144 #define WM8580_PWRDN1_ALLDACPD 0x040
145
146 /* Powerdown Register 2 (register 33h) */
147 #define WM8580_PWRDN2_OSSCPD 0x001
148 #define WM8580_PWRDN2_PLLAPD 0x002
149 #define WM8580_PWRDN2_PLLBPD 0x004
150 #define WM8580_PWRDN2_SPDIFPD 0x008
151 #define WM8580_PWRDN2_SPDIFTXD 0x010
152 #define WM8580_PWRDN2_SPDIFRXD 0x020
153
154 #define WM8580_DAC_CONTROL5_MUTEALL 0x10
155
156 /*
157 * wm8580 register cache
158 * We can't read the WM8580 register space when we
159 * are using 2 wire for device control, so we cache them instead.
160 */
161 static const u16 wm8580_reg[] = {
162 0x0121, 0x017e, 0x007d, 0x0014, /*R3*/
163 0x0121, 0x017e, 0x007d, 0x0194, /*R7*/
164 0x0010, 0x0002, 0x0002, 0x00c2, /*R11*/
165 0x0182, 0x0082, 0x000a, 0x0024, /*R15*/
166 0x0009, 0x0000, 0x00ff, 0x0000, /*R19*/
167 0x00ff, 0x00ff, 0x00ff, 0x00ff, /*R23*/
168 0x00ff, 0x00ff, 0x00ff, 0x00ff, /*R27*/
169 0x01f0, 0x0040, 0x0000, 0x0000, /*R31(0x1F)*/
170 0x0000, 0x0000, 0x0031, 0x000b, /*R35*/
171 0x0039, 0x0000, 0x0010, 0x0032, /*R39*/
172 0x0054, 0x0076, 0x0098, 0x0000, /*R43(0x2B)*/
173 0x0000, 0x0000, 0x0000, 0x0000, /*R47*/
174 0x0000, 0x0000, 0x005e, 0x003e, /*R51(0x33)*/
175 0x0000, 0x0000 /*R53*/
176 };
177
178 struct pll_state {
179 unsigned int in;
180 unsigned int out;
181 };
182
183 #define WM8580_NUM_SUPPLIES 3
184 static const char *wm8580_supply_names[WM8580_NUM_SUPPLIES] = {
185 "AVDD",
186 "DVDD",
187 "PVDD",
188 };
189
190 /* codec private data */
191 struct wm8580_priv {
192 enum snd_soc_control_type control_type;
193 struct regulator_bulk_data supplies[WM8580_NUM_SUPPLIES];
194 struct pll_state a;
195 struct pll_state b;
196 int sysclk[2];
197 };
198
199 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
200
201 static int wm8580_out_vu(struct snd_kcontrol *kcontrol,
202 struct snd_ctl_elem_value *ucontrol)
203 {
204 struct soc_mixer_control *mc =
205 (struct soc_mixer_control *)kcontrol->private_value;
206 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
207 u16 *reg_cache = codec->reg_cache;
208 unsigned int reg = mc->reg;
209 unsigned int reg2 = mc->rreg;
210 int ret;
211
212 /* Clear the register cache so we write without VU set */
213 reg_cache[reg] = 0;
214 reg_cache[reg2] = 0;
215
216 ret = snd_soc_put_volsw(kcontrol, ucontrol);
217 if (ret < 0)
218 return ret;
219
220 /* Now write again with the volume update bit set */
221 snd_soc_update_bits(codec, reg, 0x100, 0x100);
222 snd_soc_update_bits(codec, reg2, 0x100, 0x100);
223
224 return 0;
225 }
226
227 static const struct snd_kcontrol_new wm8580_snd_controls[] = {
228 SOC_DOUBLE_R_EXT_TLV("DAC1 Playback Volume",
229 WM8580_DIGITAL_ATTENUATION_DACL1,
230 WM8580_DIGITAL_ATTENUATION_DACR1,
231 0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
232 SOC_DOUBLE_R_EXT_TLV("DAC2 Playback Volume",
233 WM8580_DIGITAL_ATTENUATION_DACL2,
234 WM8580_DIGITAL_ATTENUATION_DACR2,
235 0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
236 SOC_DOUBLE_R_EXT_TLV("DAC3 Playback Volume",
237 WM8580_DIGITAL_ATTENUATION_DACL3,
238 WM8580_DIGITAL_ATTENUATION_DACR3,
239 0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
240
241 SOC_SINGLE("DAC1 Deemphasis Switch", WM8580_DAC_CONTROL3, 0, 1, 0),
242 SOC_SINGLE("DAC2 Deemphasis Switch", WM8580_DAC_CONTROL3, 1, 1, 0),
243 SOC_SINGLE("DAC3 Deemphasis Switch", WM8580_DAC_CONTROL3, 2, 1, 0),
244
245 SOC_DOUBLE("DAC1 Invert Switch", WM8580_DAC_CONTROL4, 0, 1, 1, 0),
246 SOC_DOUBLE("DAC2 Invert Switch", WM8580_DAC_CONTROL4, 2, 3, 1, 0),
247 SOC_DOUBLE("DAC3 Invert Switch", WM8580_DAC_CONTROL4, 4, 5, 1, 0),
248
249 SOC_SINGLE("DAC ZC Switch", WM8580_DAC_CONTROL5, 5, 1, 0),
250 SOC_SINGLE("DAC1 Switch", WM8580_DAC_CONTROL5, 0, 1, 1),
251 SOC_SINGLE("DAC2 Switch", WM8580_DAC_CONTROL5, 1, 1, 1),
252 SOC_SINGLE("DAC3 Switch", WM8580_DAC_CONTROL5, 2, 1, 1),
253
254 SOC_DOUBLE("Capture Switch", WM8580_ADC_CONTROL1, 0, 1, 1, 1),
255 SOC_SINGLE("Capture High-Pass Filter Switch", WM8580_ADC_CONTROL1, 4, 1, 0),
256 };
257
258 static const struct snd_soc_dapm_widget wm8580_dapm_widgets[] = {
259 SND_SOC_DAPM_DAC("DAC1", "Playback", WM8580_PWRDN1, 2, 1),
260 SND_SOC_DAPM_DAC("DAC2", "Playback", WM8580_PWRDN1, 3, 1),
261 SND_SOC_DAPM_DAC("DAC3", "Playback", WM8580_PWRDN1, 4, 1),
262
263 SND_SOC_DAPM_OUTPUT("VOUT1L"),
264 SND_SOC_DAPM_OUTPUT("VOUT1R"),
265 SND_SOC_DAPM_OUTPUT("VOUT2L"),
266 SND_SOC_DAPM_OUTPUT("VOUT2R"),
267 SND_SOC_DAPM_OUTPUT("VOUT3L"),
268 SND_SOC_DAPM_OUTPUT("VOUT3R"),
269
270 SND_SOC_DAPM_ADC("ADC", "Capture", WM8580_PWRDN1, 1, 1),
271
272 SND_SOC_DAPM_INPUT("AINL"),
273 SND_SOC_DAPM_INPUT("AINR"),
274 };
275
276 static const struct snd_soc_dapm_route audio_map[] = {
277 { "VOUT1L", NULL, "DAC1" },
278 { "VOUT1R", NULL, "DAC1" },
279
280 { "VOUT2L", NULL, "DAC2" },
281 { "VOUT2R", NULL, "DAC2" },
282
283 { "VOUT3L", NULL, "DAC3" },
284 { "VOUT3R", NULL, "DAC3" },
285
286 { "ADC", NULL, "AINL" },
287 { "ADC", NULL, "AINR" },
288 };
289
290 static int wm8580_add_widgets(struct snd_soc_codec *codec)
291 {
292 struct snd_soc_dapm_context *dapm = &codec->dapm;
293
294 snd_soc_dapm_new_controls(dapm, wm8580_dapm_widgets,
295 ARRAY_SIZE(wm8580_dapm_widgets));
296 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
297
298 return 0;
299 }
300
301 /* PLL divisors */
302 struct _pll_div {
303 u32 prescale:1;
304 u32 postscale:1;
305 u32 freqmode:2;
306 u32 n:4;
307 u32 k:24;
308 };
309
310 /* The size in bits of the pll divide */
311 #define FIXED_PLL_SIZE (1 << 22)
312
313 /* PLL rate to output rate divisions */
314 static struct {
315 unsigned int div;
316 unsigned int freqmode;
317 unsigned int postscale;
318 } post_table[] = {
319 { 2, 0, 0 },
320 { 4, 0, 1 },
321 { 4, 1, 0 },
322 { 8, 1, 1 },
323 { 8, 2, 0 },
324 { 16, 2, 1 },
325 { 12, 3, 0 },
326 { 24, 3, 1 }
327 };
328
329 static int pll_factors(struct _pll_div *pll_div, unsigned int target,
330 unsigned int source)
331 {
332 u64 Kpart;
333 unsigned int K, Ndiv, Nmod;
334 int i;
335
336 pr_debug("wm8580: PLL %uHz->%uHz\n", source, target);
337
338 /* Scale the output frequency up; the PLL should run in the
339 * region of 90-100MHz.
340 */
341 for (i = 0; i < ARRAY_SIZE(post_table); i++) {
342 if (target * post_table[i].div >= 90000000 &&
343 target * post_table[i].div <= 100000000) {
344 pll_div->freqmode = post_table[i].freqmode;
345 pll_div->postscale = post_table[i].postscale;
346 target *= post_table[i].div;
347 break;
348 }
349 }
350
351 if (i == ARRAY_SIZE(post_table)) {
352 printk(KERN_ERR "wm8580: Unable to scale output frequency "
353 "%u\n", target);
354 return -EINVAL;
355 }
356
357 Ndiv = target / source;
358
359 if (Ndiv < 5) {
360 source /= 2;
361 pll_div->prescale = 1;
362 Ndiv = target / source;
363 } else
364 pll_div->prescale = 0;
365
366 if ((Ndiv < 5) || (Ndiv > 13)) {
367 printk(KERN_ERR
368 "WM8580 N=%u outside supported range\n", Ndiv);
369 return -EINVAL;
370 }
371
372 pll_div->n = Ndiv;
373 Nmod = target % source;
374 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
375
376 do_div(Kpart, source);
377
378 K = Kpart & 0xFFFFFFFF;
379
380 pll_div->k = K;
381
382 pr_debug("PLL %x.%x prescale %d freqmode %d postscale %d\n",
383 pll_div->n, pll_div->k, pll_div->prescale, pll_div->freqmode,
384 pll_div->postscale);
385
386 return 0;
387 }
388
389 static int wm8580_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
390 int source, unsigned int freq_in, unsigned int freq_out)
391 {
392 int offset;
393 struct snd_soc_codec *codec = codec_dai->codec;
394 struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
395 struct pll_state *state;
396 struct _pll_div pll_div;
397 unsigned int reg;
398 unsigned int pwr_mask;
399 int ret;
400
401 /* GCC isn't able to work out the ifs below for initialising/using
402 * pll_div so suppress warnings.
403 */
404 memset(&pll_div, 0, sizeof(pll_div));
405
406 switch (pll_id) {
407 case WM8580_PLLA:
408 state = &wm8580->a;
409 offset = 0;
410 pwr_mask = WM8580_PWRDN2_PLLAPD;
411 break;
412 case WM8580_PLLB:
413 state = &wm8580->b;
414 offset = 4;
415 pwr_mask = WM8580_PWRDN2_PLLBPD;
416 break;
417 default:
418 return -ENODEV;
419 }
420
421 if (freq_in && freq_out) {
422 ret = pll_factors(&pll_div, freq_out, freq_in);
423 if (ret != 0)
424 return ret;
425 }
426
427 state->in = freq_in;
428 state->out = freq_out;
429
430 /* Always disable the PLL - it is not safe to leave it running
431 * while reprogramming it.
432 */
433 snd_soc_update_bits(codec, WM8580_PWRDN2, pwr_mask, pwr_mask);
434
435 if (!freq_in || !freq_out)
436 return 0;
437
438 snd_soc_write(codec, WM8580_PLLA1 + offset, pll_div.k & 0x1ff);
439 snd_soc_write(codec, WM8580_PLLA2 + offset, (pll_div.k >> 9) & 0x1ff);
440 snd_soc_write(codec, WM8580_PLLA3 + offset,
441 (pll_div.k >> 18 & 0xf) | (pll_div.n << 4));
442
443 reg = snd_soc_read(codec, WM8580_PLLA4 + offset);
444 reg &= ~0x1b;
445 reg |= pll_div.prescale | pll_div.postscale << 1 |
446 pll_div.freqmode << 3;
447
448 snd_soc_write(codec, WM8580_PLLA4 + offset, reg);
449
450 /* All done, turn it on */
451 snd_soc_update_bits(codec, WM8580_PWRDN2, pwr_mask, 0);
452
453 return 0;
454 }
455
456 static const int wm8580_sysclk_ratios[] = {
457 128, 192, 256, 384, 512, 768, 1152,
458 };
459
460 /*
461 * Set PCM DAI bit size and sample rate.
462 */
463 static int wm8580_paif_hw_params(struct snd_pcm_substream *substream,
464 struct snd_pcm_hw_params *params,
465 struct snd_soc_dai *dai)
466 {
467 struct snd_soc_pcm_runtime *rtd = substream->private_data;
468 struct snd_soc_codec *codec = rtd->codec;
469 struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
470 u16 paifa = 0;
471 u16 paifb = 0;
472 int i, ratio, osr;
473
474 /* bit size */
475 switch (params_format(params)) {
476 case SNDRV_PCM_FORMAT_S16_LE:
477 paifa |= 0x8;
478 break;
479 case SNDRV_PCM_FORMAT_S20_3LE:
480 paifa |= 0x0;
481 paifb |= WM8580_AIF_LENGTH_20;
482 break;
483 case SNDRV_PCM_FORMAT_S24_LE:
484 paifa |= 0x0;
485 paifb |= WM8580_AIF_LENGTH_24;
486 break;
487 case SNDRV_PCM_FORMAT_S32_LE:
488 paifa |= 0x0;
489 paifb |= WM8580_AIF_LENGTH_32;
490 break;
491 default:
492 return -EINVAL;
493 }
494
495 /* Look up the SYSCLK ratio; accept only exact matches */
496 ratio = wm8580->sysclk[dai->driver->id] / params_rate(params);
497 for (i = 0; i < ARRAY_SIZE(wm8580_sysclk_ratios); i++)
498 if (ratio == wm8580_sysclk_ratios[i])
499 break;
500 if (i == ARRAY_SIZE(wm8580_sysclk_ratios)) {
501 dev_err(codec->dev, "Invalid clock ratio %d/%d\n",
502 wm8580->sysclk[dai->driver->id], params_rate(params));
503 return -EINVAL;
504 }
505 paifa |= i;
506 dev_dbg(codec->dev, "Running at %dfs with %dHz clock\n",
507 wm8580_sysclk_ratios[i], wm8580->sysclk[dai->driver->id]);
508
509 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
510 switch (ratio) {
511 case 128:
512 case 192:
513 osr = WM8580_DACOSR;
514 dev_dbg(codec->dev, "Selecting 64x OSR\n");
515 break;
516 default:
517 osr = 0;
518 dev_dbg(codec->dev, "Selecting 128x OSR\n");
519 break;
520 }
521
522 snd_soc_update_bits(codec, WM8580_PAIF3, WM8580_DACOSR, osr);
523 }
524
525 snd_soc_update_bits(codec, WM8580_PAIF1 + dai->driver->id,
526 WM8580_AIF_RATE_MASK | WM8580_AIF_BCLKSEL_MASK,
527 paifa);
528 snd_soc_update_bits(codec, WM8580_PAIF3 + dai->driver->id,
529 WM8580_AIF_LENGTH_MASK, paifb);
530 return 0;
531 }
532
533 static int wm8580_set_paif_dai_fmt(struct snd_soc_dai *codec_dai,
534 unsigned int fmt)
535 {
536 struct snd_soc_codec *codec = codec_dai->codec;
537 unsigned int aifa;
538 unsigned int aifb;
539 int can_invert_lrclk;
540
541 aifa = snd_soc_read(codec, WM8580_PAIF1 + codec_dai->driver->id);
542 aifb = snd_soc_read(codec, WM8580_PAIF3 + codec_dai->driver->id);
543
544 aifb &= ~(WM8580_AIF_FMT_MASK | WM8580_AIF_LRP | WM8580_AIF_BCP);
545
546 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
547 case SND_SOC_DAIFMT_CBS_CFS:
548 aifa &= ~WM8580_AIF_MS;
549 break;
550 case SND_SOC_DAIFMT_CBM_CFM:
551 aifa |= WM8580_AIF_MS;
552 break;
553 default:
554 return -EINVAL;
555 }
556
557 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
558 case SND_SOC_DAIFMT_I2S:
559 can_invert_lrclk = 1;
560 aifb |= WM8580_AIF_FMT_I2S;
561 break;
562 case SND_SOC_DAIFMT_RIGHT_J:
563 can_invert_lrclk = 1;
564 aifb |= WM8580_AIF_FMT_RIGHTJ;
565 break;
566 case SND_SOC_DAIFMT_LEFT_J:
567 can_invert_lrclk = 1;
568 aifb |= WM8580_AIF_FMT_LEFTJ;
569 break;
570 case SND_SOC_DAIFMT_DSP_A:
571 can_invert_lrclk = 0;
572 aifb |= WM8580_AIF_FMT_DSP;
573 break;
574 case SND_SOC_DAIFMT_DSP_B:
575 can_invert_lrclk = 0;
576 aifb |= WM8580_AIF_FMT_DSP;
577 aifb |= WM8580_AIF_LRP;
578 break;
579 default:
580 return -EINVAL;
581 }
582
583 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
584 case SND_SOC_DAIFMT_NB_NF:
585 break;
586
587 case SND_SOC_DAIFMT_IB_IF:
588 if (!can_invert_lrclk)
589 return -EINVAL;
590 aifb |= WM8580_AIF_BCP;
591 aifb |= WM8580_AIF_LRP;
592 break;
593
594 case SND_SOC_DAIFMT_IB_NF:
595 aifb |= WM8580_AIF_BCP;
596 break;
597
598 case SND_SOC_DAIFMT_NB_IF:
599 if (!can_invert_lrclk)
600 return -EINVAL;
601 aifb |= WM8580_AIF_LRP;
602 break;
603
604 default:
605 return -EINVAL;
606 }
607
608 snd_soc_write(codec, WM8580_PAIF1 + codec_dai->driver->id, aifa);
609 snd_soc_write(codec, WM8580_PAIF3 + codec_dai->driver->id, aifb);
610
611 return 0;
612 }
613
614 static int wm8580_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
615 int div_id, int div)
616 {
617 struct snd_soc_codec *codec = codec_dai->codec;
618 unsigned int reg;
619
620 switch (div_id) {
621 case WM8580_MCLK:
622 reg = snd_soc_read(codec, WM8580_PLLB4);
623 reg &= ~WM8580_PLLB4_MCLKOUTSRC_MASK;
624
625 switch (div) {
626 case WM8580_CLKSRC_MCLK:
627 /* Input */
628 break;
629
630 case WM8580_CLKSRC_PLLA:
631 reg |= WM8580_PLLB4_MCLKOUTSRC_PLLA;
632 break;
633 case WM8580_CLKSRC_PLLB:
634 reg |= WM8580_PLLB4_MCLKOUTSRC_PLLB;
635 break;
636
637 case WM8580_CLKSRC_OSC:
638 reg |= WM8580_PLLB4_MCLKOUTSRC_OSC;
639 break;
640
641 default:
642 return -EINVAL;
643 }
644 snd_soc_write(codec, WM8580_PLLB4, reg);
645 break;
646
647 case WM8580_CLKOUTSRC:
648 reg = snd_soc_read(codec, WM8580_PLLB4);
649 reg &= ~WM8580_PLLB4_CLKOUTSRC_MASK;
650
651 switch (div) {
652 case WM8580_CLKSRC_NONE:
653 break;
654
655 case WM8580_CLKSRC_PLLA:
656 reg |= WM8580_PLLB4_CLKOUTSRC_PLLACLK;
657 break;
658
659 case WM8580_CLKSRC_PLLB:
660 reg |= WM8580_PLLB4_CLKOUTSRC_PLLBCLK;
661 break;
662
663 case WM8580_CLKSRC_OSC:
664 reg |= WM8580_PLLB4_CLKOUTSRC_OSCCLK;
665 break;
666
667 default:
668 return -EINVAL;
669 }
670 snd_soc_write(codec, WM8580_PLLB4, reg);
671 break;
672
673 default:
674 return -EINVAL;
675 }
676
677 return 0;
678 }
679
680 static int wm8580_set_sysclk(struct snd_soc_dai *dai, int clk_id,
681 unsigned int freq, int dir)
682 {
683 struct snd_soc_codec *codec = dai->codec;
684 struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
685 int sel, sel_mask, sel_shift;
686
687 switch (dai->driver->id) {
688 case WM8580_DAI_PAIFRX:
689 sel_mask = 0x3;
690 sel_shift = 0;
691 break;
692
693 case WM8580_DAI_PAIFTX:
694 sel_mask = 0xc;
695 sel_shift = 2;
696 break;
697
698 default:
699 BUG_ON("Unknown DAI driver ID\n");
700 return -EINVAL;
701 }
702
703 switch (clk_id) {
704 case WM8580_CLKSRC_ADCMCLK:
705 if (dai->driver->id != WM8580_DAI_PAIFTX)
706 return -EINVAL;
707 sel = 0 << sel_shift;
708 break;
709 case WM8580_CLKSRC_PLLA:
710 sel = 1 << sel_shift;
711 break;
712 case WM8580_CLKSRC_PLLB:
713 sel = 2 << sel_shift;
714 break;
715 case WM8580_CLKSRC_MCLK:
716 sel = 3 << sel_shift;
717 break;
718 default:
719 dev_err(codec->dev, "Unknown clock %d\n", clk_id);
720 return -EINVAL;
721 }
722
723 /* We really should validate PLL settings but not yet */
724 wm8580->sysclk[dai->driver->id] = freq;
725
726 return snd_soc_update_bits(codec, WM8580_CLKSEL, sel_mask, sel);
727 }
728
729 static int wm8580_digital_mute(struct snd_soc_dai *codec_dai, int mute)
730 {
731 struct snd_soc_codec *codec = codec_dai->codec;
732 unsigned int reg;
733
734 reg = snd_soc_read(codec, WM8580_DAC_CONTROL5);
735
736 if (mute)
737 reg |= WM8580_DAC_CONTROL5_MUTEALL;
738 else
739 reg &= ~WM8580_DAC_CONTROL5_MUTEALL;
740
741 snd_soc_write(codec, WM8580_DAC_CONTROL5, reg);
742
743 return 0;
744 }
745
746 static int wm8580_set_bias_level(struct snd_soc_codec *codec,
747 enum snd_soc_bias_level level)
748 {
749 switch (level) {
750 case SND_SOC_BIAS_ON:
751 case SND_SOC_BIAS_PREPARE:
752 break;
753
754 case SND_SOC_BIAS_STANDBY:
755 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
756 /* Power up and get individual control of the DACs */
757 snd_soc_update_bits(codec, WM8580_PWRDN1,
758 WM8580_PWRDN1_PWDN |
759 WM8580_PWRDN1_ALLDACPD, 0);
760
761 /* Make VMID high impedance */
762 snd_soc_update_bits(codec, WM8580_ADC_CONTROL1,
763 0x100, 0);
764 }
765 break;
766
767 case SND_SOC_BIAS_OFF:
768 snd_soc_update_bits(codec, WM8580_PWRDN1,
769 WM8580_PWRDN1_PWDN, WM8580_PWRDN1_PWDN);
770 break;
771 }
772 codec->dapm.bias_level = level;
773 return 0;
774 }
775
776 #define WM8580_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
777 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
778
779 static struct snd_soc_dai_ops wm8580_dai_ops_playback = {
780 .set_sysclk = wm8580_set_sysclk,
781 .hw_params = wm8580_paif_hw_params,
782 .set_fmt = wm8580_set_paif_dai_fmt,
783 .set_clkdiv = wm8580_set_dai_clkdiv,
784 .set_pll = wm8580_set_dai_pll,
785 .digital_mute = wm8580_digital_mute,
786 };
787
788 static struct snd_soc_dai_ops wm8580_dai_ops_capture = {
789 .set_sysclk = wm8580_set_sysclk,
790 .hw_params = wm8580_paif_hw_params,
791 .set_fmt = wm8580_set_paif_dai_fmt,
792 .set_clkdiv = wm8580_set_dai_clkdiv,
793 .set_pll = wm8580_set_dai_pll,
794 };
795
796 static struct snd_soc_dai_driver wm8580_dai[] = {
797 {
798 .name = "wm8580-hifi-playback",
799 .id = WM8580_DAI_PAIFRX,
800 .playback = {
801 .stream_name = "Playback",
802 .channels_min = 1,
803 .channels_max = 6,
804 .rates = SNDRV_PCM_RATE_8000_192000,
805 .formats = WM8580_FORMATS,
806 },
807 .ops = &wm8580_dai_ops_playback,
808 },
809 {
810 .name = "wm8580-hifi-capture",
811 .id = WM8580_DAI_PAIFTX,
812 .capture = {
813 .stream_name = "Capture",
814 .channels_min = 2,
815 .channels_max = 2,
816 .rates = SNDRV_PCM_RATE_8000_192000,
817 .formats = WM8580_FORMATS,
818 },
819 .ops = &wm8580_dai_ops_capture,
820 },
821 };
822
823 static int wm8580_probe(struct snd_soc_codec *codec)
824 {
825 struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
826 int ret = 0,i;
827
828 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8580->control_type);
829 if (ret < 0) {
830 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
831 return ret;
832 }
833
834 for (i = 0; i < ARRAY_SIZE(wm8580->supplies); i++)
835 wm8580->supplies[i].supply = wm8580_supply_names[i];
836
837 ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8580->supplies),
838 wm8580->supplies);
839 if (ret != 0) {
840 dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
841 return ret;
842 }
843
844 ret = regulator_bulk_enable(ARRAY_SIZE(wm8580->supplies),
845 wm8580->supplies);
846 if (ret != 0) {
847 dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
848 goto err_regulator_get;
849 }
850
851 /* Get the codec into a known state */
852 ret = snd_soc_write(codec, WM8580_RESET, 0);
853 if (ret != 0) {
854 dev_err(codec->dev, "Failed to reset codec: %d\n", ret);
855 goto err_regulator_enable;
856 }
857
858 wm8580_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
859
860 snd_soc_add_controls(codec, wm8580_snd_controls,
861 ARRAY_SIZE(wm8580_snd_controls));
862 wm8580_add_widgets(codec);
863
864 return 0;
865
866 err_regulator_enable:
867 regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
868 err_regulator_get:
869 regulator_bulk_free(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
870 return ret;
871 }
872
873 /* power down chip */
874 static int wm8580_remove(struct snd_soc_codec *codec)
875 {
876 struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
877
878 wm8580_set_bias_level(codec, SND_SOC_BIAS_OFF);
879
880 regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
881 regulator_bulk_free(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
882
883 return 0;
884 }
885
886 static struct snd_soc_codec_driver soc_codec_dev_wm8580 = {
887 .probe = wm8580_probe,
888 .remove = wm8580_remove,
889 .set_bias_level = wm8580_set_bias_level,
890 .reg_cache_size = ARRAY_SIZE(wm8580_reg),
891 .reg_word_size = sizeof(u16),
892 .reg_cache_default = wm8580_reg,
893 };
894
895 static const struct of_device_id wm8580_of_match[] = {
896 { .compatible = "wlf,wm8580" },
897 { },
898 };
899
900 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
901 static int wm8580_i2c_probe(struct i2c_client *i2c,
902 const struct i2c_device_id *id)
903 {
904 struct wm8580_priv *wm8580;
905 int ret;
906
907 wm8580 = kzalloc(sizeof(struct wm8580_priv), GFP_KERNEL);
908 if (wm8580 == NULL)
909 return -ENOMEM;
910
911 i2c_set_clientdata(i2c, wm8580);
912 wm8580->control_type = SND_SOC_I2C;
913
914 ret = snd_soc_register_codec(&i2c->dev,
915 &soc_codec_dev_wm8580, wm8580_dai, ARRAY_SIZE(wm8580_dai));
916 if (ret < 0)
917 kfree(wm8580);
918 return ret;
919 }
920
921 static int wm8580_i2c_remove(struct i2c_client *client)
922 {
923 snd_soc_unregister_codec(&client->dev);
924 kfree(i2c_get_clientdata(client));
925 return 0;
926 }
927
928 static const struct i2c_device_id wm8580_i2c_id[] = {
929 { "wm8580", 0 },
930 { }
931 };
932 MODULE_DEVICE_TABLE(i2c, wm8580_i2c_id);
933
934 static struct i2c_driver wm8580_i2c_driver = {
935 .driver = {
936 .name = "wm8580",
937 .owner = THIS_MODULE,
938 .of_match_table = wm8580_of_match,
939 },
940 .probe = wm8580_i2c_probe,
941 .remove = wm8580_i2c_remove,
942 .id_table = wm8580_i2c_id,
943 };
944 #endif
945
946 static int __init wm8580_modinit(void)
947 {
948 int ret = 0;
949
950 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
951 ret = i2c_add_driver(&wm8580_i2c_driver);
952 if (ret != 0) {
953 pr_err("Failed to register WM8580 I2C driver: %d\n", ret);
954 }
955 #endif
956
957 return ret;
958 }
959 module_init(wm8580_modinit);
960
961 static void __exit wm8580_exit(void)
962 {
963 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
964 i2c_del_driver(&wm8580_i2c_driver);
965 #endif
966 }
967 module_exit(wm8580_exit);
968
969 MODULE_DESCRIPTION("ASoC WM8580 driver");
970 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
971 MODULE_LICENSE("GPL");
Linux with added FPC-III support