Commit | Line | Data |
---|---|---|
74930bb6 | 1 | /* |
f5c4ffbd | 2 | * neo1973_wm8753.c -- SoC audio for Openmoko Neo1973 and Freerunner devices |
74930bb6 | 3 | * |
f5c4ffbd LPC |
4 | * Copyright 2007 Openmoko Inc |
5 | * Author: Graeme Gregory <graeme@openmoko.org> | |
74930bb6 GG |
6 | * Copyright 2007 Wolfson Microelectronics PLC. |
7 | * Author: Graeme Gregory | |
8 | * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com | |
f5c4ffbd | 9 | * Copyright 2009 Wolfson Microelectronics |
74930bb6 GG |
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. | |
74930bb6 GG |
15 | */ |
16 | ||
17 | #include <linux/module.h> | |
74930bb6 | 18 | #include <linux/platform_device.h> |
f5c4ffbd LPC |
19 | #include <linux/gpio.h> |
20 | ||
74930bb6 | 21 | #include <sound/soc.h> |
74930bb6 | 22 | |
abffae64 | 23 | #include <mach/gpio-samsung.h> |
fb2aa074 | 24 | #include <asm/mach-types.h> |
5d229ce5 | 25 | #include "regs-iis.h" |
aa9673cf | 26 | |
74930bb6 | 27 | #include "../codecs/wm8753.h" |
74930bb6 GG |
28 | #include "s3c24xx-i2s.h" |
29 | ||
74930bb6 GG |
30 | static 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; | |
f0fba2ad LG |
34 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
35 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
74930bb6 GG |
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 */ | |
64105cfd | 74 | ret = snd_soc_dai_set_fmt(codec_dai, |
74930bb6 GG |
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 */ | |
64105cfd | 81 | ret = snd_soc_dai_set_fmt(cpu_dai, |
74930bb6 GG |
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 */ | |
64105cfd | 88 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out, |
74930bb6 GG |
89 | SND_SOC_CLOCK_IN); |
90 | if (ret < 0) | |
91 | return ret; | |
92 | ||
93 | /* set MCLK division for sample rate */ | |
64105cfd | 94 | ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK, |
8ba02ace | 95 | S3C2410_IISMOD_32FS); |
74930bb6 GG |
96 | if (ret < 0) |
97 | return ret; | |
98 | ||
99 | /* set codec BCLK division for sample rate */ | |
64105cfd | 100 | ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, bclk); |
74930bb6 GG |
101 | if (ret < 0) |
102 | return ret; | |
103 | ||
104 | /* set prescaler division for sample rate */ | |
64105cfd | 105 | ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER, |
8ba02ace | 106 | S3C24XX_PRESCALE(4, 4)); |
74930bb6 GG |
107 | if (ret < 0) |
108 | return ret; | |
109 | ||
110 | /* codec PLL input is PCLK/4 */ | |
85488037 | 111 | ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, |
74930bb6 GG |
112 | iis_clkrate / 4, pll_out); |
113 | if (ret < 0) | |
114 | return ret; | |
115 | ||
116 | return 0; | |
117 | } | |
118 | ||
119 | static int neo1973_hifi_hw_free(struct snd_pcm_substream *substream) | |
120 | { | |
121 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 122 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
74930bb6 GG |
123 | |
124 | /* disable the PLL */ | |
140318aa | 125 | return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0); |
74930bb6 GG |
126 | } |
127 | ||
128 | /* | |
129 | * Neo1973 WM8753 HiFi DAI opserations. | |
130 | */ | |
131 | static struct snd_soc_ops neo1973_hifi_ops = { | |
132 | .hw_params = neo1973_hifi_hw_params, | |
133 | .hw_free = neo1973_hifi_hw_free, | |
134 | }; | |
135 | ||
136 | static 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; | |
f0fba2ad | 140 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
74930bb6 GG |
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 */ | |
64105cfd | 156 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B | |
74930bb6 GG |
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 */ | |
64105cfd | 162 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK, 12288000, |
74930bb6 GG |
163 | SND_SOC_CLOCK_IN); |
164 | if (ret < 0) | |
165 | return ret; | |
166 | ||
167 | /* set codec PCM division for sample rate */ | |
64105cfd | 168 | ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV, pcmdiv); |
74930bb6 GG |
169 | if (ret < 0) |
170 | return ret; | |
171 | ||
fa2eb005 | 172 | /* configure and enable PLL for 12.288MHz output */ |
140318aa | 173 | ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, |
74930bb6 GG |
174 | iis_clkrate / 4, 12288000); |
175 | if (ret < 0) | |
176 | return ret; | |
177 | ||
178 | return 0; | |
179 | } | |
180 | ||
181 | static int neo1973_voice_hw_free(struct snd_pcm_substream *substream) | |
182 | { | |
183 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 184 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
74930bb6 GG |
185 | |
186 | /* disable the PLL */ | |
140318aa | 187 | return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0); |
74930bb6 GG |
188 | } |
189 | ||
190 | static struct snd_soc_ops neo1973_voice_ops = { | |
191 | .hw_params = neo1973_voice_hw_params, | |
192 | .hw_free = neo1973_voice_hw_free, | |
193 | }; | |
194 | ||
f5c4ffbd LPC |
195 | static int gta02_speaker_enabled; |
196 | ||
197 | static int lm4853_set_spk(struct snd_kcontrol *kcontrol, | |
198 | struct snd_ctl_elem_value *ucontrol) | |
199 | { | |
200 | gta02_speaker_enabled = ucontrol->value.integer.value[0]; | |
201 | ||
b2ca7871 | 202 | gpio_set_value(S3C2410_GPJ(2), !gta02_speaker_enabled); |
f5c4ffbd LPC |
203 | |
204 | return 0; | |
205 | } | |
206 | ||
207 | static int lm4853_get_spk(struct snd_kcontrol *kcontrol, | |
208 | struct snd_ctl_elem_value *ucontrol) | |
209 | { | |
210 | ucontrol->value.integer.value[0] = gta02_speaker_enabled; | |
211 | return 0; | |
212 | } | |
213 | ||
214 | static int lm4853_event(struct snd_soc_dapm_widget *w, | |
215 | struct snd_kcontrol *k, int event) | |
216 | { | |
b2ca7871 | 217 | gpio_set_value(S3C2410_GPJ(1), SND_SOC_DAPM_EVENT_OFF(event)); |
f5c4ffbd LPC |
218 | |
219 | return 0; | |
220 | } | |
221 | ||
61e7fe25 LPC |
222 | static const struct snd_soc_dapm_widget neo1973_wm8753_dapm_widgets[] = { |
223 | SND_SOC_DAPM_LINE("GSM Line Out", NULL), | |
224 | SND_SOC_DAPM_LINE("GSM Line In", NULL), | |
225 | SND_SOC_DAPM_MIC("Headset Mic", NULL), | |
226 | SND_SOC_DAPM_MIC("Handset Mic", NULL), | |
227 | SND_SOC_DAPM_SPK("Handset Spk", NULL), | |
228 | SND_SOC_DAPM_SPK("Stereo Out", lm4853_event), | |
229 | }; | |
230 | ||
231 | static const struct snd_soc_dapm_route neo1973_wm8753_routes[] = { | |
232 | /* Connections to the GSM Module */ | |
233 | {"GSM Line Out", NULL, "MONO1"}, | |
234 | {"GSM Line Out", NULL, "MONO2"}, | |
235 | {"RXP", NULL, "GSM Line In"}, | |
236 | {"RXN", NULL, "GSM Line In"}, | |
237 | ||
238 | /* Connections to Headset */ | |
239 | {"MIC1", NULL, "Mic Bias"}, | |
240 | {"Mic Bias", NULL, "Headset Mic"}, | |
241 | ||
242 | /* Call Mic */ | |
243 | {"MIC2", NULL, "Mic Bias"}, | |
244 | {"MIC2N", NULL, "Mic Bias"}, | |
245 | {"Mic Bias", NULL, "Handset Mic"}, | |
246 | ||
247 | /* Connect the ALC pins */ | |
248 | {"ACIN", NULL, "ACOP"}, | |
249 | ||
f5c4ffbd LPC |
250 | /* Connections to the amp */ |
251 | {"Stereo Out", NULL, "LOUT1"}, | |
252 | {"Stereo Out", NULL, "ROUT1"}, | |
253 | ||
254 | /* Call Speaker */ | |
255 | {"Handset Spk", NULL, "LOUT2"}, | |
256 | {"Handset Spk", NULL, "ROUT2"}, | |
257 | }; | |
258 | ||
61e7fe25 LPC |
259 | static const struct snd_kcontrol_new neo1973_wm8753_controls[] = { |
260 | SOC_DAPM_PIN_SWITCH("GSM Line Out"), | |
261 | SOC_DAPM_PIN_SWITCH("GSM Line In"), | |
262 | SOC_DAPM_PIN_SWITCH("Headset Mic"), | |
263 | SOC_DAPM_PIN_SWITCH("Handset Mic"), | |
f5c4ffbd LPC |
264 | SOC_DAPM_PIN_SWITCH("Handset Spk"), |
265 | SOC_DAPM_PIN_SWITCH("Stereo Out"), | |
266 | ||
267 | SOC_SINGLE_BOOL_EXT("Amp Spk Switch", 0, | |
268 | lm4853_get_spk, | |
269 | lm4853_set_spk), | |
270 | }; | |
271 | ||
f0fba2ad | 272 | static int neo1973_wm8753_init(struct snd_soc_pcm_runtime *rtd) |
74930bb6 | 273 | { |
4f07c9cc | 274 | struct snd_soc_card *card = rtd->card; |
1894c59f | 275 | |
f5c4ffbd | 276 | /* set endpoints to default off mode */ |
4f07c9cc LPC |
277 | snd_soc_dapm_disable_pin(&card->dapm, "GSM Line Out"); |
278 | snd_soc_dapm_disable_pin(&card->dapm, "GSM Line In"); | |
279 | snd_soc_dapm_disable_pin(&card->dapm, "Headset Mic"); | |
280 | snd_soc_dapm_disable_pin(&card->dapm, "Handset Mic"); | |
281 | snd_soc_dapm_disable_pin(&card->dapm, "Stereo Out"); | |
282 | snd_soc_dapm_disable_pin(&card->dapm, "Handset Spk"); | |
f5c4ffbd LPC |
283 | |
284 | /* allow audio paths from the GSM modem to run during suspend */ | |
4f07c9cc LPC |
285 | snd_soc_dapm_ignore_suspend(&card->dapm, "GSM Line Out"); |
286 | snd_soc_dapm_ignore_suspend(&card->dapm, "GSM Line In"); | |
287 | snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic"); | |
288 | snd_soc_dapm_ignore_suspend(&card->dapm, "Handset Mic"); | |
289 | snd_soc_dapm_ignore_suspend(&card->dapm, "Stereo Out"); | |
290 | snd_soc_dapm_ignore_suspend(&card->dapm, "Handset Spk"); | |
74930bb6 | 291 | |
74930bb6 GG |
292 | return 0; |
293 | } | |
294 | ||
74930bb6 GG |
295 | static struct snd_soc_dai_link neo1973_dai[] = { |
296 | { /* Hifi Playback - for similatious use with voice below */ | |
297 | .name = "WM8753", | |
298 | .stream_name = "WM8753 HiFi", | |
a08485d8 | 299 | .platform_name = "s3c24xx-iis", |
518aa59f | 300 | .cpu_dai_name = "s3c24xx-iis", |
f0fba2ad | 301 | .codec_dai_name = "wm8753-hifi", |
b2ccf065 | 302 | .codec_name = "wm8753.0-001a", |
74930bb6 GG |
303 | .init = neo1973_wm8753_init, |
304 | .ops = &neo1973_hifi_ops, | |
305 | }, | |
306 | { /* Voice via BT */ | |
307 | .name = "Bluetooth", | |
308 | .stream_name = "Voice", | |
200ceb96 | 309 | .cpu_dai_name = "bt-sco-pcm", |
f0fba2ad | 310 | .codec_dai_name = "wm8753-voice", |
b2ccf065 | 311 | .codec_name = "wm8753.0-001a", |
74930bb6 GG |
312 | .ops = &neo1973_voice_ops, |
313 | }, | |
314 | }; | |
315 | ||
9b0a25f0 | 316 | static struct snd_soc_aux_dev neo1973_aux_devs[] = { |
a077ff90 LPC |
317 | { |
318 | .name = "dfbmcs320", | |
319 | .codec_name = "dfbmcs320.0", | |
320 | }, | |
74930bb6 GG |
321 | }; |
322 | ||
9b0a25f0 LPC |
323 | static struct snd_soc_codec_conf neo1973_codec_conf[] = { |
324 | { | |
325 | .dev_name = "lm4857.0-007c", | |
326 | .name_prefix = "Amp", | |
327 | }, | |
b6471305 JD |
328 | }; |
329 | ||
f5c4ffbd | 330 | static const struct gpio neo1973_gta02_gpios[] = { |
b2ca7871 KK |
331 | { S3C2410_GPJ(2), GPIOF_OUT_INIT_HIGH, "GTA02_HP_IN" }, |
332 | { S3C2410_GPJ(1), GPIOF_OUT_INIT_HIGH, "GTA02_AMP_SHUT" }, | |
f5c4ffbd | 333 | }; |
f5c4ffbd | 334 | |
9b0a25f0 LPC |
335 | static struct snd_soc_card neo1973 = { |
336 | .name = "neo1973", | |
095d79dc | 337 | .owner = THIS_MODULE, |
9b0a25f0 LPC |
338 | .dai_link = neo1973_dai, |
339 | .num_links = ARRAY_SIZE(neo1973_dai), | |
340 | .aux_dev = neo1973_aux_devs, | |
341 | .num_aux_devs = ARRAY_SIZE(neo1973_aux_devs), | |
342 | .codec_conf = neo1973_codec_conf, | |
343 | .num_configs = ARRAY_SIZE(neo1973_codec_conf), | |
4f07c9cc LPC |
344 | |
345 | .controls = neo1973_wm8753_controls, | |
346 | .num_controls = ARRAY_SIZE(neo1973_wm8753_controls), | |
347 | .dapm_widgets = neo1973_wm8753_dapm_widgets, | |
348 | .num_dapm_widgets = ARRAY_SIZE(neo1973_wm8753_dapm_widgets), | |
349 | .dapm_routes = neo1973_wm8753_routes, | |
350 | .num_dapm_routes = ARRAY_SIZE(neo1973_wm8753_routes), | |
fbfad490 | 351 | .fully_routed = true, |
74930bb6 GG |
352 | }; |
353 | ||
354 | static struct platform_device *neo1973_snd_device; | |
355 | ||
356 | static int __init neo1973_init(void) | |
357 | { | |
358 | int ret; | |
359 | ||
1ae5cbc5 | 360 | if (!machine_is_neo1973_gta02()) |
fb2aa074 | 361 | return -ENODEV; |
f5c4ffbd LPC |
362 | |
363 | if (machine_is_neo1973_gta02()) { | |
364 | neo1973.name = "neo1973gta02"; | |
a077ff90 | 365 | neo1973.num_aux_devs = 1; |
f5c4ffbd LPC |
366 | |
367 | ret = gpio_request_array(neo1973_gta02_gpios, | |
368 | ARRAY_SIZE(neo1973_gta02_gpios)); | |
369 | if (ret) | |
370 | return ret; | |
fb2aa074 MB |
371 | } |
372 | ||
74930bb6 | 373 | neo1973_snd_device = platform_device_alloc("soc-audio", -1); |
f5c4ffbd LPC |
374 | if (!neo1973_snd_device) { |
375 | ret = -ENOMEM; | |
376 | goto err_gpio_free; | |
377 | } | |
378 | ||
f0fba2ad | 379 | platform_set_drvdata(neo1973_snd_device, &neo1973); |
74930bb6 GG |
380 | ret = platform_device_add(neo1973_snd_device); |
381 | ||
f5c4ffbd | 382 | if (ret) |
a077ff90 | 383 | goto err_put_device; |
74930bb6 | 384 | |
f5c4ffbd | 385 | return 0; |
74930bb6 | 386 | |
f5c4ffbd LPC |
387 | err_put_device: |
388 | platform_device_put(neo1973_snd_device); | |
389 | err_gpio_free: | |
390 | if (machine_is_neo1973_gta02()) { | |
391 | gpio_free_array(neo1973_gta02_gpios, | |
392 | ARRAY_SIZE(neo1973_gta02_gpios)); | |
393 | } | |
74930bb6 GG |
394 | return ret; |
395 | } | |
f5c4ffbd | 396 | module_init(neo1973_init); |
74930bb6 GG |
397 | |
398 | static void __exit neo1973_exit(void) | |
399 | { | |
400 | platform_device_unregister(neo1973_snd_device); | |
74930bb6 | 401 | |
f5c4ffbd LPC |
402 | if (machine_is_neo1973_gta02()) { |
403 | gpio_free_array(neo1973_gta02_gpios, | |
404 | ARRAY_SIZE(neo1973_gta02_gpios)); | |
405 | } | |
406 | } | |
74930bb6 GG |
407 | module_exit(neo1973_exit); |
408 | ||
409 | /* Module information */ | |
443590e6 | 410 | MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org"); |
f5c4ffbd | 411 | MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 and Frerunner"); |
74930bb6 | 412 | MODULE_LICENSE("GPL"); |