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Diffstat (limited to 'sound/soc/samsung/neo1973_wm8753.c')
-rw-r--r--sound/soc/samsung/neo1973_wm8753.c538
1 files changed, 538 insertions, 0 deletions
diff --git a/sound/soc/samsung/neo1973_wm8753.c b/sound/soc/samsung/neo1973_wm8753.c
new file mode 100644
index 000000000000..16152ed08648
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+++ b/sound/soc/samsung/neo1973_wm8753.c
@@ -0,0 +1,538 @@
1/*
2 * neo1973_wm8753.c -- SoC audio for Openmoko Neo1973 and Freerunner devices
3 *
4 * Copyright 2007 Openmoko Inc
5 * Author: Graeme Gregory <graeme@openmoko.org>
6 * Copyright 2007 Wolfson Microelectronics PLC.
7 * Author: Graeme Gregory
8 * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
9 * Copyright 2009 Wolfson Microelectronics
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
15 */
16
17#include <linux/module.h>
18#include <linux/platform_device.h>
19#include <linux/gpio.h>
20
21#include <sound/soc.h>
22
23#include <asm/mach-types.h>
24#include <plat/regs-iis.h>
25#include <mach/gta02.h>
26
27#include "../codecs/wm8753.h"
28#include "s3c24xx-i2s.h"
29
30static int neo1973_hifi_hw_params(struct snd_pcm_substream *substream,
31 struct snd_pcm_hw_params *params)
32{
33 struct snd_soc_pcm_runtime *rtd = substream->private_data;
34 struct snd_soc_dai *codec_dai = rtd->codec_dai;
35 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
36 unsigned int pll_out = 0, bclk = 0;
37 int ret = 0;
38 unsigned long iis_clkrate;
39
40 iis_clkrate = s3c24xx_i2s_get_clockrate();
41
42 switch (params_rate(params)) {
43 case 8000:
44 case 16000:
45 pll_out = 12288000;
46 break;
47 case 48000:
48 bclk = WM8753_BCLK_DIV_4;
49 pll_out = 12288000;
50 break;
51 case 96000:
52 bclk = WM8753_BCLK_DIV_2;
53 pll_out = 12288000;
54 break;
55 case 11025:
56 bclk = WM8753_BCLK_DIV_16;
57 pll_out = 11289600;
58 break;
59 case 22050:
60 bclk = WM8753_BCLK_DIV_8;
61 pll_out = 11289600;
62 break;
63 case 44100:
64 bclk = WM8753_BCLK_DIV_4;
65 pll_out = 11289600;
66 break;
67 case 88200:
68 bclk = WM8753_BCLK_DIV_2;
69 pll_out = 11289600;
70 break;
71 }
72
73 /* set codec DAI configuration */
74 ret = snd_soc_dai_set_fmt(codec_dai,
75 SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
76 SND_SOC_DAIFMT_CBM_CFM);
77 if (ret < 0)
78 return ret;
79
80 /* set cpu DAI configuration */
81 ret = snd_soc_dai_set_fmt(cpu_dai,
82 SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
83 SND_SOC_DAIFMT_CBM_CFM);
84 if (ret < 0)
85 return ret;
86
87 /* set the codec system clock for DAC and ADC */
88 ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
89 SND_SOC_CLOCK_IN);
90 if (ret < 0)
91 return ret;
92
93 /* set MCLK division for sample rate */
94 ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
95 S3C2410_IISMOD_32FS);
96 if (ret < 0)
97 return ret;
98
99 /* set codec BCLK division for sample rate */
100 ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, bclk);
101 if (ret < 0)
102 return ret;
103
104 /* set prescaler division for sample rate */
105 ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
106 S3C24XX_PRESCALE(4, 4));
107 if (ret < 0)
108 return ret;
109
110 /* codec PLL input is PCLK/4 */
111 ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
112 iis_clkrate / 4, pll_out);
113 if (ret < 0)
114 return ret;
115
116 return 0;
117}
118
119static int neo1973_hifi_hw_free(struct snd_pcm_substream *substream)
120{
121 struct snd_soc_pcm_runtime *rtd = substream->private_data;
122 struct snd_soc_dai *codec_dai = rtd->codec_dai;
123
124 /* disable the PLL */
125 return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
126}
127
128/*
129 * Neo1973 WM8753 HiFi DAI opserations.
130 */
131static struct snd_soc_ops neo1973_hifi_ops = {
132 .hw_params = neo1973_hifi_hw_params,
133 .hw_free = neo1973_hifi_hw_free,
134};
135
136static int neo1973_voice_hw_params(struct snd_pcm_substream *substream,
137 struct snd_pcm_hw_params *params)
138{
139 struct snd_soc_pcm_runtime *rtd = substream->private_data;
140 struct snd_soc_dai *codec_dai = rtd->codec_dai;
141 unsigned int pcmdiv = 0;
142 int ret = 0;
143 unsigned long iis_clkrate;
144
145 iis_clkrate = s3c24xx_i2s_get_clockrate();
146
147 if (params_rate(params) != 8000)
148 return -EINVAL;
149 if (params_channels(params) != 1)
150 return -EINVAL;
151
152 pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */
153
154 /* todo: gg check mode (DSP_B) against CSR datasheet */
155 /* set codec DAI configuration */
156 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B |
157 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
158 if (ret < 0)
159 return ret;
160
161 /* set the codec system clock for DAC and ADC */
162 ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK, 12288000,
163 SND_SOC_CLOCK_IN);
164 if (ret < 0)
165 return ret;
166
167 /* set codec PCM division for sample rate */
168 ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV, pcmdiv);
169 if (ret < 0)
170 return ret;
171
172 /* configure and enable PLL for 12.288MHz output */
173 ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0,
174 iis_clkrate / 4, 12288000);
175 if (ret < 0)
176 return ret;
177
178 return 0;
179}
180
181static int neo1973_voice_hw_free(struct snd_pcm_substream *substream)
182{
183 struct snd_soc_pcm_runtime *rtd = substream->private_data;
184 struct snd_soc_dai *codec_dai = rtd->codec_dai;
185
186 /* disable the PLL */
187 return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
188}
189
190static struct snd_soc_ops neo1973_voice_ops = {
191 .hw_params = neo1973_voice_hw_params,
192 .hw_free = neo1973_voice_hw_free,
193};
194
195/* Shared routes and controls */
196
197static const struct snd_soc_dapm_widget neo1973_wm8753_dapm_widgets[] = {
198 SND_SOC_DAPM_LINE("GSM Line Out", NULL),
199 SND_SOC_DAPM_LINE("GSM Line In", NULL),
200 SND_SOC_DAPM_MIC("Headset Mic", NULL),
201 SND_SOC_DAPM_MIC("Handset Mic", NULL),
202};
203
204static const struct snd_soc_dapm_route neo1973_wm8753_routes[] = {
205 /* Connections to the GSM Module */
206 {"GSM Line Out", NULL, "MONO1"},
207 {"GSM Line Out", NULL, "MONO2"},
208 {"RXP", NULL, "GSM Line In"},
209 {"RXN", NULL, "GSM Line In"},
210
211 /* Connections to Headset */
212 {"MIC1", NULL, "Mic Bias"},
213 {"Mic Bias", NULL, "Headset Mic"},
214
215 /* Call Mic */
216 {"MIC2", NULL, "Mic Bias"},
217 {"MIC2N", NULL, "Mic Bias"},
218 {"Mic Bias", NULL, "Handset Mic"},
219
220 /* Connect the ALC pins */
221 {"ACIN", NULL, "ACOP"},
222};
223
224static const struct snd_kcontrol_new neo1973_wm8753_controls[] = {
225 SOC_DAPM_PIN_SWITCH("GSM Line Out"),
226 SOC_DAPM_PIN_SWITCH("GSM Line In"),
227 SOC_DAPM_PIN_SWITCH("Headset Mic"),
228 SOC_DAPM_PIN_SWITCH("Handset Mic"),
229};
230
231/* GTA02 specific routes and controls */
232
233#ifdef CONFIG_MACH_NEO1973_GTA02
234
235static int gta02_speaker_enabled;
236
237static int lm4853_set_spk(struct snd_kcontrol *kcontrol,
238 struct snd_ctl_elem_value *ucontrol)
239{
240 gta02_speaker_enabled = ucontrol->value.integer.value[0];
241
242 gpio_set_value(GTA02_GPIO_HP_IN, !gta02_speaker_enabled);
243
244 return 0;
245}
246
247static int lm4853_get_spk(struct snd_kcontrol *kcontrol,
248 struct snd_ctl_elem_value *ucontrol)
249{
250 ucontrol->value.integer.value[0] = gta02_speaker_enabled;
251 return 0;
252}
253
254static int lm4853_event(struct snd_soc_dapm_widget *w,
255 struct snd_kcontrol *k, int event)
256{
257 gpio_set_value(GTA02_GPIO_AMP_SHUT, SND_SOC_DAPM_EVENT_OFF(event));
258
259 return 0;
260}
261
262static const struct snd_soc_dapm_route neo1973_gta02_routes[] = {
263 /* Connections to the amp */
264 {"Stereo Out", NULL, "LOUT1"},
265 {"Stereo Out", NULL, "ROUT1"},
266
267 /* Call Speaker */
268 {"Handset Spk", NULL, "LOUT2"},
269 {"Handset Spk", NULL, "ROUT2"},
270};
271
272static const struct snd_kcontrol_new neo1973_gta02_wm8753_controls[] = {
273 SOC_DAPM_PIN_SWITCH("Handset Spk"),
274 SOC_DAPM_PIN_SWITCH("Stereo Out"),
275
276 SOC_SINGLE_BOOL_EXT("Amp Spk Switch", 0,
277 lm4853_get_spk,
278 lm4853_set_spk),
279};
280
281static const struct snd_soc_dapm_widget neo1973_gta02_wm8753_dapm_widgets[] = {
282 SND_SOC_DAPM_SPK("Handset Spk", NULL),
283 SND_SOC_DAPM_SPK("Stereo Out", lm4853_event),
284};
285
286static int neo1973_gta02_wm8753_init(struct snd_soc_codec *codec)
287{
288 struct snd_soc_dapm_context *dapm = &codec->dapm;
289 int ret;
290
291 ret = snd_soc_dapm_new_controls(dapm, neo1973_gta02_wm8753_dapm_widgets,
292 ARRAY_SIZE(neo1973_gta02_wm8753_dapm_widgets));
293 if (ret)
294 return ret;
295
296 ret = snd_soc_dapm_add_routes(dapm, neo1973_gta02_routes,
297 ARRAY_SIZE(neo1973_gta02_routes));
298 if (ret)
299 return ret;
300
301 ret = snd_soc_add_controls(codec, neo1973_gta02_wm8753_controls,
302 ARRAY_SIZE(neo1973_gta02_wm8753_controls));
303 if (ret)
304 return ret;
305
306 snd_soc_dapm_disable_pin(dapm, "Stereo Out");
307 snd_soc_dapm_disable_pin(dapm, "Handset Spk");
308 snd_soc_dapm_ignore_suspend(dapm, "Stereo Out");
309 snd_soc_dapm_ignore_suspend(dapm, "Handset Spk");
310
311 return 0;
312}
313
314#else
315static int neo1973_gta02_wm8753_init(struct snd_soc_code *codec) { return 0; }
316#endif
317
318static int neo1973_wm8753_init(struct snd_soc_pcm_runtime *rtd)
319{
320 struct snd_soc_codec *codec = rtd->codec;
321 struct snd_soc_dapm_context *dapm = &codec->dapm;
322 int ret;
323
324 /* set up NC codec pins */
325 if (machine_is_neo1973_gta01()) {
326 snd_soc_dapm_nc_pin(dapm, "LOUT2");
327 snd_soc_dapm_nc_pin(dapm, "ROUT2");
328 }
329 snd_soc_dapm_nc_pin(dapm, "OUT3");
330 snd_soc_dapm_nc_pin(dapm, "OUT4");
331 snd_soc_dapm_nc_pin(dapm, "LINE1");
332 snd_soc_dapm_nc_pin(dapm, "LINE2");
333
334 /* Add neo1973 specific widgets */
335 ret = snd_soc_dapm_new_controls(dapm, neo1973_wm8753_dapm_widgets,
336 ARRAY_SIZE(neo1973_wm8753_dapm_widgets));
337 if (ret)
338 return ret;
339
340 /* add neo1973 specific controls */
341 ret = snd_soc_add_controls(codec, neo1973_wm8753_controls,
342 ARRAY_SIZE(neo1973_wm8753_controls));
343 if (ret)
344 return ret;
345
346 /* set up neo1973 specific audio routes */
347 ret = snd_soc_dapm_add_routes(dapm, neo1973_wm8753_routes,
348 ARRAY_SIZE(neo1973_wm8753_routes));
349 if (ret)
350 return ret;
351
352 /* set endpoints to default off mode */
353 snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
354 snd_soc_dapm_disable_pin(dapm, "GSM Line In");
355 snd_soc_dapm_disable_pin(dapm, "Headset Mic");
356 snd_soc_dapm_disable_pin(dapm, "Handset Mic");
357
358 /* allow audio paths from the GSM modem to run during suspend */
359 snd_soc_dapm_ignore_suspend(dapm, "GSM Line Out");
360 snd_soc_dapm_ignore_suspend(dapm, "GSM Line In");
361 snd_soc_dapm_ignore_suspend(dapm, "Headset Mic");
362 snd_soc_dapm_ignore_suspend(dapm, "Handset Mic");
363
364 if (machine_is_neo1973_gta02()) {
365 ret = neo1973_gta02_wm8753_init(codec);
366 if (ret)
367 return ret;
368 }
369
370 snd_soc_dapm_sync(dapm);
371
372 return 0;
373}
374
375/* GTA01 specific controls */
376
377#ifdef CONFIG_MACH_NEO1973_GTA01
378
379static const struct snd_soc_dapm_route neo1973_lm4857_routes[] = {
380 {"Amp IN", NULL, "ROUT1"},
381 {"Amp IN", NULL, "LOUT1"},
382
383 {"Handset Spk", NULL, "Amp EP"},
384 {"Stereo Out", NULL, "Amp LS"},
385 {"Headphone", NULL, "Amp HP"},
386};
387
388static const struct snd_soc_dapm_widget neo1973_lm4857_dapm_widgets[] = {
389 SND_SOC_DAPM_SPK("Handset Spk", NULL),
390 SND_SOC_DAPM_SPK("Stereo Out", NULL),
391 SND_SOC_DAPM_HP("Headphone", NULL),
392};
393
394static int neo1973_lm4857_init(struct snd_soc_dapm_context *dapm)
395{
396 int ret;
397
398 ret = snd_soc_dapm_new_controls(dapm, neo1973_lm4857_dapm_widgets,
399 ARRAY_SIZE(neo1973_lm4857_dapm_widgets));
400 if (ret)
401 return ret;
402
403 ret = snd_soc_dapm_add_routes(dapm, neo1973_lm4857_routes,
404 ARRAY_SIZE(neo1973_lm4857_routes));
405 if (ret)
406 return ret;
407
408 snd_soc_dapm_ignore_suspend(dapm, "Stereo Out");
409 snd_soc_dapm_ignore_suspend(dapm, "Handset Spk");
410 snd_soc_dapm_ignore_suspend(dapm, "Headphone");
411
412 snd_soc_dapm_sync(dapm);
413
414 return 0;
415}
416
417#else
418static int neo1973_lm4857_init(struct snd_soc_dapm_context *dapm) { return 0; };
419#endif
420
421static struct snd_soc_dai_link neo1973_dai[] = {
422{ /* Hifi Playback - for similatious use with voice below */
423 .name = "WM8753",
424 .stream_name = "WM8753 HiFi",
425 .platform_name = "samsung-audio",
426 .cpu_dai_name = "s3c24xx-iis",
427 .codec_dai_name = "wm8753-hifi",
428 .codec_name = "wm8753-codec.0-001a",
429 .init = neo1973_wm8753_init,
430 .ops = &neo1973_hifi_ops,
431},
432{ /* Voice via BT */
433 .name = "Bluetooth",
434 .stream_name = "Voice",
435 .cpu_dai_name = "dfbmcs320-pcm",
436 .codec_dai_name = "wm8753-voice",
437 .codec_name = "wm8753-codec.0-001a",
438 .ops = &neo1973_voice_ops,
439},
440};
441
442static struct snd_soc_aux_dev neo1973_aux_devs[] = {
443 {
444 .name = "dfbmcs320",
445 .codec_name = "dfbmcs320.0",
446 },
447 {
448 .name = "lm4857",
449 .codec_name = "lm4857.0-007c",
450 .init = neo1973_lm4857_init,
451 },
452};
453
454static struct snd_soc_codec_conf neo1973_codec_conf[] = {
455 {
456 .dev_name = "lm4857.0-007c",
457 .name_prefix = "Amp",
458 },
459};
460
461#ifdef CONFIG_MACH_NEO1973_GTA02
462static const struct gpio neo1973_gta02_gpios[] = {
463 { GTA02_GPIO_HP_IN, GPIOF_OUT_INIT_HIGH, "GTA02_HP_IN" },
464 { GTA02_GPIO_AMP_SHUT, GPIOF_OUT_INIT_HIGH, "GTA02_AMP_SHUT" },
465};
466#else
467static const struct gpio neo1973_gta02_gpios[] = {};
468#endif
469
470static struct snd_soc_card neo1973 = {
471 .name = "neo1973",
472 .dai_link = neo1973_dai,
473 .num_links = ARRAY_SIZE(neo1973_dai),
474 .aux_dev = neo1973_aux_devs,
475 .num_aux_devs = ARRAY_SIZE(neo1973_aux_devs),
476 .codec_conf = neo1973_codec_conf,
477 .num_configs = ARRAY_SIZE(neo1973_codec_conf),
478};
479
480static struct platform_device *neo1973_snd_device;
481
482static int __init neo1973_init(void)
483{
484 int ret;
485
486 if (!machine_is_neo1973_gta01() && !machine_is_neo1973_gta02())
487 return -ENODEV;
488
489 if (machine_is_neo1973_gta02()) {
490 neo1973.name = "neo1973gta02";
491 neo1973.num_aux_devs = 1;
492
493 ret = gpio_request_array(neo1973_gta02_gpios,
494 ARRAY_SIZE(neo1973_gta02_gpios));
495 if (ret)
496 return ret;
497 }
498
499 neo1973_snd_device = platform_device_alloc("soc-audio", -1);
500 if (!neo1973_snd_device) {
501 ret = -ENOMEM;
502 goto err_gpio_free;
503 }
504
505 platform_set_drvdata(neo1973_snd_device, &neo1973);
506 ret = platform_device_add(neo1973_snd_device);
507
508 if (ret)
509 goto err_put_device;
510
511 return 0;
512
513err_put_device:
514 platform_device_put(neo1973_snd_device);
515err_gpio_free:
516 if (machine_is_neo1973_gta02()) {
517 gpio_free_array(neo1973_gta02_gpios,
518 ARRAY_SIZE(neo1973_gta02_gpios));
519 }
520 return ret;
521}
522module_init(neo1973_init);
523
524static void __exit neo1973_exit(void)
525{
526 platform_device_unregister(neo1973_snd_device);
527
528 if (machine_is_neo1973_gta02()) {
529 gpio_free_array(neo1973_gta02_gpios,
530 ARRAY_SIZE(neo1973_gta02_gpios));
531 }
532}
533module_exit(neo1973_exit);
534
535/* Module information */
536MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org");
537MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 and Frerunner");
538MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-09 10:32:09 -0400