2 * neo1973_wm8753.c -- SoC audio for Openmoko Neo1973 and Freerunner devices
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
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.
17 #include <linux/module.h>
18 #include <linux/platform_device.h>
19 #include <linux/gpio.h>
21 #include <sound/soc.h>
23 #include <asm/mach-types.h>
24 #include <plat/regs-iis.h>
25 #include <mach/gta02.h>
27 #include "../codecs/wm8753.h"
28 #include "s3c24xx-i2s.h"
30 static int neo1973_hifi_hw_params(struct snd_pcm_substream
*substream
,
31 struct snd_pcm_hw_params
*params
)
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;
38 unsigned long iis_clkrate
;
40 iis_clkrate
= s3c24xx_i2s_get_clockrate();
42 switch (params_rate(params
)) {
48 bclk
= WM8753_BCLK_DIV_4
;
52 bclk
= WM8753_BCLK_DIV_2
;
56 bclk
= WM8753_BCLK_DIV_16
;
60 bclk
= WM8753_BCLK_DIV_8
;
64 bclk
= WM8753_BCLK_DIV_4
;
68 bclk
= WM8753_BCLK_DIV_2
;
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
);
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
);
87 /* set the codec system clock for DAC and ADC */
88 ret
= snd_soc_dai_set_sysclk(codec_dai
, WM8753_MCLK
, pll_out
,
93 /* set MCLK division for sample rate */
94 ret
= snd_soc_dai_set_clkdiv(cpu_dai
, S3C24XX_DIV_MCLK
,
99 /* set codec BCLK division for sample rate */
100 ret
= snd_soc_dai_set_clkdiv(codec_dai
, WM8753_BCLKDIV
, bclk
);
104 /* set prescaler division for sample rate */
105 ret
= snd_soc_dai_set_clkdiv(cpu_dai
, S3C24XX_DIV_PRESCALER
,
106 S3C24XX_PRESCALE(4, 4));
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
);
119 static int neo1973_hifi_hw_free(struct snd_pcm_substream
*substream
)
121 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
122 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
124 /* disable the PLL */
125 return snd_soc_dai_set_pll(codec_dai
, WM8753_PLL1
, 0, 0, 0);
129 * Neo1973 WM8753 HiFi DAI opserations.
131 static struct snd_soc_ops neo1973_hifi_ops
= {
132 .hw_params
= neo1973_hifi_hw_params
,
133 .hw_free
= neo1973_hifi_hw_free
,
136 static int neo1973_voice_hw_params(struct snd_pcm_substream
*substream
,
137 struct snd_pcm_hw_params
*params
)
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;
143 unsigned long iis_clkrate
;
145 iis_clkrate
= s3c24xx_i2s_get_clockrate();
147 if (params_rate(params
) != 8000)
149 if (params_channels(params
) != 1)
152 pcmdiv
= WM8753_PCM_DIV_6
; /* 2.048 MHz */
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
);
161 /* set the codec system clock for DAC and ADC */
162 ret
= snd_soc_dai_set_sysclk(codec_dai
, WM8753_PCMCLK
, 12288000,
167 /* set codec PCM division for sample rate */
168 ret
= snd_soc_dai_set_clkdiv(codec_dai
, WM8753_PCMDIV
, pcmdiv
);
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);
181 static int neo1973_voice_hw_free(struct snd_pcm_substream
*substream
)
183 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
184 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
186 /* disable the PLL */
187 return snd_soc_dai_set_pll(codec_dai
, WM8753_PLL2
, 0, 0, 0);
190 static struct snd_soc_ops neo1973_voice_ops
= {
191 .hw_params
= neo1973_voice_hw_params
,
192 .hw_free
= neo1973_voice_hw_free
,
195 /* Shared routes and controls */
197 static 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
),
204 static 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"},
211 /* Connections to Headset */
212 {"MIC1", NULL
, "Mic Bias"},
213 {"Mic Bias", NULL
, "Headset Mic"},
216 {"MIC2", NULL
, "Mic Bias"},
217 {"MIC2N", NULL
, "Mic Bias"},
218 {"Mic Bias", NULL
, "Handset Mic"},
220 /* Connect the ALC pins */
221 {"ACIN", NULL
, "ACOP"},
224 static 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"),
231 /* GTA02 specific routes and controls */
233 static int gta02_speaker_enabled
;
235 static int lm4853_set_spk(struct snd_kcontrol
*kcontrol
,
236 struct snd_ctl_elem_value
*ucontrol
)
238 gta02_speaker_enabled
= ucontrol
->value
.integer
.value
[0];
240 gpio_set_value(S3C2410_GPJ(2), !gta02_speaker_enabled
);
245 static int lm4853_get_spk(struct snd_kcontrol
*kcontrol
,
246 struct snd_ctl_elem_value
*ucontrol
)
248 ucontrol
->value
.integer
.value
[0] = gta02_speaker_enabled
;
252 static int lm4853_event(struct snd_soc_dapm_widget
*w
,
253 struct snd_kcontrol
*k
, int event
)
255 gpio_set_value(S3C2410_GPJ(1), SND_SOC_DAPM_EVENT_OFF(event
));
260 static const struct snd_soc_dapm_route neo1973_gta02_routes
[] = {
261 /* Connections to the amp */
262 {"Stereo Out", NULL
, "LOUT1"},
263 {"Stereo Out", NULL
, "ROUT1"},
266 {"Handset Spk", NULL
, "LOUT2"},
267 {"Handset Spk", NULL
, "ROUT2"},
270 static const struct snd_kcontrol_new neo1973_gta02_wm8753_controls
[] = {
271 SOC_DAPM_PIN_SWITCH("Handset Spk"),
272 SOC_DAPM_PIN_SWITCH("Stereo Out"),
274 SOC_SINGLE_BOOL_EXT("Amp Spk Switch", 0,
279 static const struct snd_soc_dapm_widget neo1973_gta02_wm8753_dapm_widgets
[] = {
280 SND_SOC_DAPM_SPK("Handset Spk", NULL
),
281 SND_SOC_DAPM_SPK("Stereo Out", lm4853_event
),
284 static int neo1973_gta02_wm8753_init(struct snd_soc_codec
*codec
)
286 struct snd_soc_dapm_context
*dapm
= &codec
->dapm
;
289 ret
= snd_soc_dapm_new_controls(dapm
, neo1973_gta02_wm8753_dapm_widgets
,
290 ARRAY_SIZE(neo1973_gta02_wm8753_dapm_widgets
));
294 ret
= snd_soc_dapm_add_routes(dapm
, neo1973_gta02_routes
,
295 ARRAY_SIZE(neo1973_gta02_routes
));
299 ret
= snd_soc_add_card_controls(codec
->card
, neo1973_gta02_wm8753_controls
,
300 ARRAY_SIZE(neo1973_gta02_wm8753_controls
));
304 snd_soc_dapm_disable_pin(dapm
, "Stereo Out");
305 snd_soc_dapm_disable_pin(dapm
, "Handset Spk");
306 snd_soc_dapm_ignore_suspend(dapm
, "Stereo Out");
307 snd_soc_dapm_ignore_suspend(dapm
, "Handset Spk");
312 static int neo1973_wm8753_init(struct snd_soc_pcm_runtime
*rtd
)
314 struct snd_soc_codec
*codec
= rtd
->codec
;
315 struct snd_soc_dapm_context
*dapm
= &codec
->dapm
;
318 /* set up NC codec pins */
319 snd_soc_dapm_nc_pin(dapm
, "OUT3");
320 snd_soc_dapm_nc_pin(dapm
, "OUT4");
321 snd_soc_dapm_nc_pin(dapm
, "LINE1");
322 snd_soc_dapm_nc_pin(dapm
, "LINE2");
324 /* Add neo1973 specific widgets */
325 ret
= snd_soc_dapm_new_controls(dapm
, neo1973_wm8753_dapm_widgets
,
326 ARRAY_SIZE(neo1973_wm8753_dapm_widgets
));
330 /* add neo1973 specific controls */
331 ret
= snd_soc_add_card_controls(rtd
->card
, neo1973_wm8753_controls
,
332 ARRAY_SIZE(neo1973_wm8753_controls
));
336 /* set up neo1973 specific audio routes */
337 ret
= snd_soc_dapm_add_routes(dapm
, neo1973_wm8753_routes
,
338 ARRAY_SIZE(neo1973_wm8753_routes
));
342 /* set endpoints to default off mode */
343 snd_soc_dapm_disable_pin(dapm
, "GSM Line Out");
344 snd_soc_dapm_disable_pin(dapm
, "GSM Line In");
345 snd_soc_dapm_disable_pin(dapm
, "Headset Mic");
346 snd_soc_dapm_disable_pin(dapm
, "Handset Mic");
348 /* allow audio paths from the GSM modem to run during suspend */
349 snd_soc_dapm_ignore_suspend(dapm
, "GSM Line Out");
350 snd_soc_dapm_ignore_suspend(dapm
, "GSM Line In");
351 snd_soc_dapm_ignore_suspend(dapm
, "Headset Mic");
352 snd_soc_dapm_ignore_suspend(dapm
, "Handset Mic");
354 if (machine_is_neo1973_gta02()) {
355 ret
= neo1973_gta02_wm8753_init(codec
);
363 static struct snd_soc_dai_link neo1973_dai
[] = {
364 { /* Hifi Playback - for similatious use with voice below */
366 .stream_name
= "WM8753 HiFi",
367 .platform_name
= "s3c24xx-iis",
368 .cpu_dai_name
= "s3c24xx-iis",
369 .codec_dai_name
= "wm8753-hifi",
370 .codec_name
= "wm8753.0-001a",
371 .init
= neo1973_wm8753_init
,
372 .ops
= &neo1973_hifi_ops
,
376 .stream_name
= "Voice",
377 .cpu_dai_name
= "dfbmcs320-pcm",
378 .codec_dai_name
= "wm8753-voice",
379 .codec_name
= "wm8753.0-001a",
380 .ops
= &neo1973_voice_ops
,
384 static struct snd_soc_aux_dev neo1973_aux_devs
[] = {
387 .codec_name
= "dfbmcs320.0",
391 static struct snd_soc_codec_conf neo1973_codec_conf
[] = {
393 .dev_name
= "lm4857.0-007c",
394 .name_prefix
= "Amp",
398 static const struct gpio neo1973_gta02_gpios
[] = {
399 { S3C2410_GPJ(2), GPIOF_OUT_INIT_HIGH
, "GTA02_HP_IN" },
400 { S3C2410_GPJ(1), GPIOF_OUT_INIT_HIGH
, "GTA02_AMP_SHUT" },
403 static struct snd_soc_card neo1973
= {
405 .owner
= THIS_MODULE
,
406 .dai_link
= neo1973_dai
,
407 .num_links
= ARRAY_SIZE(neo1973_dai
),
408 .aux_dev
= neo1973_aux_devs
,
409 .num_aux_devs
= ARRAY_SIZE(neo1973_aux_devs
),
410 .codec_conf
= neo1973_codec_conf
,
411 .num_configs
= ARRAY_SIZE(neo1973_codec_conf
),
414 static struct platform_device
*neo1973_snd_device
;
416 static int __init
neo1973_init(void)
420 if (!machine_is_neo1973_gta02())
423 if (machine_is_neo1973_gta02()) {
424 neo1973
.name
= "neo1973gta02";
425 neo1973
.num_aux_devs
= 1;
427 ret
= gpio_request_array(neo1973_gta02_gpios
,
428 ARRAY_SIZE(neo1973_gta02_gpios
));
433 neo1973_snd_device
= platform_device_alloc("soc-audio", -1);
434 if (!neo1973_snd_device
) {
439 platform_set_drvdata(neo1973_snd_device
, &neo1973
);
440 ret
= platform_device_add(neo1973_snd_device
);
448 platform_device_put(neo1973_snd_device
);
450 if (machine_is_neo1973_gta02()) {
451 gpio_free_array(neo1973_gta02_gpios
,
452 ARRAY_SIZE(neo1973_gta02_gpios
));
456 module_init(neo1973_init
);
458 static void __exit
neo1973_exit(void)
460 platform_device_unregister(neo1973_snd_device
);
462 if (machine_is_neo1973_gta02()) {
463 gpio_free_array(neo1973_gta02_gpios
,
464 ARRAY_SIZE(neo1973_gta02_gpios
));
467 module_exit(neo1973_exit
);
469 /* Module information */
470 MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org");
471 MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 and Frerunner");
472 MODULE_LICENSE("GPL");