1 /* sound/soc/s3c24xx/smartq_wm8987.c
3 * Copyright 2010 Maurus Cuelenaere <mcuelenaere@gmail.com>
5 * Based on smdk6410_wm8987.c
6 * Copyright 2007 Wolfson Microelectronics PLC. - linux@wolfsonmicro.com
7 * Graeme Gregory - graeme.gregory@wolfsonmicro.com
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
16 #include <linux/module.h>
17 #include <linux/platform_device.h>
18 #include <linux/gpio.h>
20 #include <sound/pcm.h>
21 #include <sound/pcm_params.h>
22 #include <sound/soc-dapm.h>
23 #include <sound/jack.h>
25 #include <asm/mach-types.h>
28 #include "s3c64xx-i2s.h"
30 #include "../codecs/wm8750.h"
33 * WM8987 is register compatible with WM8750, so using that as base driver.
36 static struct snd_soc_card snd_soc_smartq
;
38 static int smartq_hifi_hw_params(struct snd_pcm_substream
*substream
,
39 struct snd_pcm_hw_params
*params
)
41 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
42 struct snd_soc_dai
*codec_dai
= rtd
->dai
->codec_dai
;
43 struct snd_soc_dai
*cpu_dai
= rtd
->dai
->cpu_dai
;
44 struct s3c_i2sv2_rate_calc div
;
48 s3c_i2sv2_iis_calc_rate(&div
, NULL
, params_rate(params
),
49 s3c_i2sv2_get_clock(cpu_dai
));
51 switch (params_rate(params
)) {
67 /* set codec DAI configuration */
68 ret
= snd_soc_dai_set_fmt(codec_dai
, SND_SOC_DAIFMT_I2S
|
69 SND_SOC_DAIFMT_NB_NF
|
70 SND_SOC_DAIFMT_CBS_CFS
);
74 /* set cpu DAI configuration */
75 ret
= snd_soc_dai_set_fmt(cpu_dai
, SND_SOC_DAIFMT_I2S
|
76 SND_SOC_DAIFMT_NB_NF
|
77 SND_SOC_DAIFMT_CBS_CFS
);
81 /* set the codec system clock for DAC and ADC */
82 ret
= snd_soc_dai_set_sysclk(codec_dai
, WM8750_SYSCLK
, clk
,
87 /* set MCLK division for sample rate */
88 ret
= snd_soc_dai_set_clkdiv(cpu_dai
, S3C_I2SV2_DIV_RCLK
, div
.fs_div
);
92 /* set prescaler division for sample rate */
93 ret
= snd_soc_dai_set_clkdiv(cpu_dai
, S3C_I2SV2_DIV_PRESCALER
,
102 * SmartQ WM8987 HiFi DAI operations.
104 static struct snd_soc_ops smartq_hifi_ops
= {
105 .hw_params
= smartq_hifi_hw_params
,
108 static struct snd_soc_jack smartq_jack
;
110 static struct snd_soc_jack_pin smartq_jack_pins
[] = {
111 /* Disable speaker when headphone is plugged in */
113 .pin
= "Internal Speaker",
114 .mask
= SND_JACK_HEADPHONE
,
118 static struct snd_soc_jack_gpio smartq_jack_gpios
[] = {
120 .gpio
= S3C64XX_GPL(12),
121 .name
= "headphone detect",
122 .report
= SND_JACK_HEADPHONE
,
123 .debounce_time
= 200,
127 static const struct snd_kcontrol_new wm8987_smartq_controls
[] = {
128 SOC_DAPM_PIN_SWITCH("Internal Speaker"),
129 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
130 SOC_DAPM_PIN_SWITCH("Internal Mic"),
133 static int smartq_speaker_event(struct snd_soc_dapm_widget
*w
,
134 struct snd_kcontrol
*k
,
137 gpio_set_value(S3C64XX_GPK(12), SND_SOC_DAPM_EVENT_OFF(event
));
142 static const struct snd_soc_dapm_widget wm8987_dapm_widgets
[] = {
143 SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event
),
144 SND_SOC_DAPM_HP("Headphone Jack", NULL
),
145 SND_SOC_DAPM_MIC("Internal Mic", NULL
),
148 static const struct snd_soc_dapm_route audio_map
[] = {
149 {"Headphone Jack", NULL
, "LOUT2"},
150 {"Headphone Jack", NULL
, "ROUT2"},
152 {"Internal Speaker", NULL
, "LOUT2"},
153 {"Internal Speaker", NULL
, "ROUT2"},
155 {"Mic Bias", NULL
, "Internal Mic"},
156 {"LINPUT2", NULL
, "Mic Bias"},
159 static int smartq_wm8987_init(struct snd_soc_codec
*codec
)
163 /* Add SmartQ specific widgets */
164 snd_soc_dapm_new_controls(codec
, wm8987_dapm_widgets
,
165 ARRAY_SIZE(wm8987_dapm_widgets
));
167 /* add SmartQ specific controls */
168 err
= snd_soc_add_controls(codec
, wm8987_smartq_controls
,
169 ARRAY_SIZE(wm8987_smartq_controls
));
174 /* setup SmartQ specific audio path */
175 snd_soc_dapm_add_routes(codec
, audio_map
, ARRAY_SIZE(audio_map
));
177 /* set endpoints to not connected */
178 snd_soc_dapm_nc_pin(codec
, "LINPUT1");
179 snd_soc_dapm_nc_pin(codec
, "RINPUT1");
180 snd_soc_dapm_nc_pin(codec
, "OUT3");
181 snd_soc_dapm_nc_pin(codec
, "ROUT1");
183 /* set endpoints to default off mode */
184 snd_soc_dapm_enable_pin(codec
, "Internal Speaker");
185 snd_soc_dapm_enable_pin(codec
, "Internal Mic");
186 snd_soc_dapm_disable_pin(codec
, "Headphone Jack");
188 err
= snd_soc_dapm_sync(codec
);
192 /* Headphone jack detection */
193 err
= snd_soc_jack_new(&snd_soc_smartq
, "Headphone Jack",
194 SND_JACK_HEADPHONE
, &smartq_jack
);
198 err
= snd_soc_jack_add_pins(&smartq_jack
, ARRAY_SIZE(smartq_jack_pins
),
203 err
= snd_soc_jack_add_gpios(&smartq_jack
,
204 ARRAY_SIZE(smartq_jack_gpios
),
210 static struct snd_soc_dai_link smartq_dai
[] = {
213 .stream_name
= "SmartQ Hi-Fi",
214 .cpu_dai
= &s3c64xx_i2s_dai
[0],
215 .codec_dai
= &wm8750_dai
,
216 .init
= smartq_wm8987_init
,
217 .ops
= &smartq_hifi_ops
,
221 static struct snd_soc_card snd_soc_smartq
= {
223 .platform
= &s3c24xx_soc_platform
,
224 .dai_link
= smartq_dai
,
225 .num_links
= ARRAY_SIZE(smartq_dai
),
228 static struct snd_soc_device smartq_snd_devdata
= {
229 .card
= &snd_soc_smartq
,
230 .codec_dev
= &soc_codec_dev_wm8750
,
233 static struct platform_device
*smartq_snd_device
;
235 static int __init
smartq_init(void)
239 if (!machine_is_smartq7() && !machine_is_smartq5()) {
240 pr_info("Only SmartQ is supported by this ASoC driver\n");
244 smartq_snd_device
= platform_device_alloc("soc-audio", -1);
245 if (!smartq_snd_device
)
248 platform_set_drvdata(smartq_snd_device
, &smartq_snd_devdata
);
249 smartq_snd_devdata
.dev
= &smartq_snd_device
->dev
;
251 ret
= platform_device_add(smartq_snd_device
);
253 platform_device_put(smartq_snd_device
);
257 /* Initialise GPIOs used by amplifiers */
258 ret
= gpio_request(S3C64XX_GPK(12), "amplifiers shutdown");
260 dev_err(&smartq_snd_device
->dev
, "Failed to register GPK12\n");
261 goto err_unregister_device
;
264 /* Disable amplifiers */
265 ret
= gpio_direction_output(S3C64XX_GPK(12), 1);
267 dev_err(&smartq_snd_device
->dev
, "Failed to configure GPK12\n");
268 goto err_free_gpio_amp_shut
;
273 err_free_gpio_amp_shut
:
274 gpio_free(S3C64XX_GPK(12));
275 err_unregister_device
:
276 platform_device_unregister(smartq_snd_device
);
281 static void __exit
smartq_exit(void)
283 snd_soc_jack_free_gpios(&smartq_jack
, ARRAY_SIZE(smartq_jack_gpios
),
286 platform_device_unregister(smartq_snd_device
);
289 module_init(smartq_init
);
290 module_exit(smartq_exit
);
292 /* Module information */
293 MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
294 MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987");
295 MODULE_LICENSE("GPL");