[deliverable/linux.git] / sound / soc / s3c24xx / jive_wm8750.c

/* sound/soc/s3c24xx/jive_wm8750.c
 *
 * Copyright 2007,2008 Simtec Electronics
 *
 * Based on sound/soc/pxa/spitz.c
 *	Copyright 2005 Wolfson Microelectronics PLC.
 *	Copyright 2005 Openedhand Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
*/

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/clk.h>

#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>

#include <asm/mach-types.h>

#include "s3c24xx-pcm.h"
#include "s3c2412-i2s.h"

#include "../codecs/wm8750.h"

static const struct snd_soc_dapm_route audio_map[] = {
	{ "Headphone Jack", NULL, "LOUT1" },
	{ "Headphone Jack", NULL, "ROUT1" },
	{ "Internal Speaker", NULL, "LOUT2" },
	{ "Internal Speaker", NULL, "ROUT2" },
	{ "LINPUT1", NULL, "Line Input" },
	{ "RINPUT1", NULL, "Line Input" },
};

static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_SPK("Internal Speaker", NULL),
	SND_SOC_DAPM_LINE("Line In", NULL),
};

static int jive_startup(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_codec *codec = rtd->socdev->codec;

	snd_soc_dapm_enable_pin(codec, "Headphone Jack");
	snd_soc_dapm_enable_pin(codec, "Internal Speaker");
	snd_soc_dapm_enable_pin(codec, "Line In");

	snd_soc_dapm_sync(codec);

	return 0;
}

static int jive_hw_params(struct snd_pcm_substream *substream,
			  struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
	struct s3c2412_rate_calc div;
	unsigned int clk = 0;
	int ret = 0;

	switch (params_rate(params)) {
	case 8000:
	case 16000:
	case 48000:
	case 96000:
		clk = 12288000;
		break;
	case 11025:
	case 22050:
	case 44100:
		clk = 11289600;
		break;
	}

	s3c2412_iis_calc_rate(&div, NULL, params_rate(params),
			      s3c2412_get_iisclk());

	/* set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
				  SND_SOC_DAIFMT_NB_NF |
				  SND_SOC_DAIFMT_CBS_CFS);
	if (ret < 0)
		return ret;

	/* set cpu DAI configuration */
	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
				  SND_SOC_DAIFMT_NB_NF |
				  SND_SOC_DAIFMT_CBS_CFS);
	if (ret < 0)
		return ret;

	/* set the codec system clock for DAC and ADC */
	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
				     SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div);
	if (ret < 0)
		return ret;

	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER,
				     div.clk_div - 1);
	if (ret < 0)
		return ret;

	return 0;
}

static struct snd_soc_ops jive_ops = {
	.startup	= jive_startup,
	.hw_params	= jive_hw_params,
};

static int jive_wm8750_init(struct snd_soc_codec *codec)
{
	int err;

	/* These endpoints are not being used. */
	snd_soc_dapm_disable_pin(codec, "LINPUT2");
	snd_soc_dapm_disable_pin(codec, "RINPUT2");
	snd_soc_dapm_disable_pin(codec, "LINPUT3");
	snd_soc_dapm_disable_pin(codec, "RINPUT3");
	snd_soc_dapm_disable_pin(codec, "OUT3");
	snd_soc_dapm_disable_pin(codec, "MONO");

	/* Add jive specific widgets */
	err = snd_soc_dapm_new_controls(codec, wm8750_dapm_widgets,
					ARRAY_SIZE(wm8750_dapm_widgets));
	if (err) {
		printk(KERN_ERR "%s: failed to add widgets (%d)\n",
		       __func__, err);
		return err;
	}

	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
	snd_soc_dapm_sync(codec);

	return 0;
}

static struct snd_soc_dai_link jive_dai = {
	.name		= "wm8750",
	.stream_name	= "WM8750",
	.cpu_dai	= &s3c2412_i2s_dai,
	.codec_dai	= &wm8750_dai,
	.init		= jive_wm8750_init,
	.ops		= &jive_ops,
};

/* jive audio machine driver */
static struct snd_soc_machine snd_soc_machine_jive = {
	.name		= "Jive",
	.dai_link	= &jive_dai,
	.num_links	= 1,
};

/* jive audio private data */
static struct wm8750_setup_data jive_wm8750_setup = {
};

/* jive audio subsystem */
static struct snd_soc_device jive_snd_devdata = {
	.machine	= &snd_soc_machine_jive,
	.platform	= &s3c24xx_soc_platform,
	.codec_dev	= &soc_codec_dev_wm8750_spi,
	.codec_data	= &jive_wm8750_setup,
};

static struct platform_device *jive_snd_device;

static int __init jive_init(void)
{
	int ret;

	if (!machine_is_jive())
		return 0;

	printk("JIVE WM8750 Audio support\n");

	jive_snd_device = platform_device_alloc("soc-audio", -1);
	if (!jive_snd_device)
		return -ENOMEM;

	platform_set_drvdata(jive_snd_device, &jive_snd_devdata);
	jive_snd_devdata.dev = &jive_snd_device->dev;
	ret = platform_device_add(jive_snd_device);

	if (ret)
		platform_device_put(jive_snd_device);

	return ret;
}

static void __exit jive_exit(void)
{
	platform_device_unregister(jive_snd_device);
}

module_init(jive_init);
module_exit(jive_exit);

MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
MODULE_DESCRIPTION("ALSA SoC Jive Audio support");
MODULE_LICENSE("GPL");
Commit	Line	Data
3093e48c BD	1	/* sound/soc/s3c24xx/jive_wm8750.c
	2	*
	3	* Copyright 2007,2008 Simtec Electronics
	4	*
	5	* Based on sound/soc/pxa/spitz.c
	6	* Copyright 2005 Wolfson Microelectronics PLC.
	7	* Copyright 2005 Openedhand Ltd.
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License version 2 as
	11	* published by the Free Software Foundation.
	12	*/
	13
	14	#include <linux/module.h>
	15	#include <linux/moduleparam.h>
	16	#include <linux/timer.h>
	17	#include <linux/interrupt.h>
	18	#include <linux/platform_device.h>
	19	#include <linux/clk.h>
	20
	21	#include <sound/core.h>
	22	#include <sound/pcm.h>
	23	#include <sound/soc.h>
	24	#include <sound/soc-dapm.h>
	25
	26	#include <asm/mach-types.h>
	27
	28	#include "s3c24xx-pcm.h"
	29	#include "s3c2412-i2s.h"
	30
	31	#include "../codecs/wm8750.h"
	32
	33	static const struct snd_soc_dapm_route audio_map[] = {
	34	{ "Headphone Jack", NULL, "LOUT1" },
	35	{ "Headphone Jack", NULL, "ROUT1" },
	36	{ "Internal Speaker", NULL, "LOUT2" },
	37	{ "Internal Speaker", NULL, "ROUT2" },
	38	{ "LINPUT1", NULL, "Line Input" },
	39	{ "RINPUT1", NULL, "Line Input" },
	40	};
	41
	42	static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
	43	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	44	SND_SOC_DAPM_SPK("Internal Speaker", NULL),
	45	SND_SOC_DAPM_LINE("Line In", NULL),
	46	};
	47
	48	static int jive_startup(struct snd_pcm_substream *substream)
	49	{
	50	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	51	struct snd_soc_codec *codec = rtd->socdev->codec;
	52
	53	snd_soc_dapm_enable_pin(codec, "Headphone Jack");
	54	snd_soc_dapm_enable_pin(codec, "Internal Speaker");
	55	snd_soc_dapm_enable_pin(codec, "Line In");
	56
	57	snd_soc_dapm_sync(codec);
	58
	59	return 0;
	60	}
	61
	62	static int jive_hw_params(struct snd_pcm_substream *substream,
	63	struct snd_pcm_hw_params *params)
	64	{
65	struct snd_soc_pcm_runtime *rtd = substream->private_data;
66	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
67	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
68	struct s3c2412_rate_calc div;
69	unsigned int clk = 0;
70	int ret = 0;
71
72	switch (params_rate(params)) {
73	case 8000:
74	case 16000:
75	case 48000:
76	case 96000:
77	clk = 12288000;
78	break;
79	case 11025:
80	case 22050:
81	case 44100:
82	clk = 11289600;
83	break;
84	}
85
86	s3c2412_iis_calc_rate(&div, NULL, params_rate(params),
87	s3c2412_get_iisclk());
88
89	/* set codec DAI configuration */
90	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
91	SND_SOC_DAIFMT_NB_NF \|
92	SND_SOC_DAIFMT_CBS_CFS);
93	if (ret < 0)
94	return ret;
95
96	/* set cpu DAI configuration */
97	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
98	SND_SOC_DAIFMT_NB_NF \|
99	SND_SOC_DAIFMT_CBS_CFS);
100	if (ret < 0)
101	return ret;
102
103	/* set the codec system clock for DAC and ADC */
104	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
105	SND_SOC_CLOCK_IN);
106	if (ret < 0)
107	return ret;
108
109	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div);
110	if (ret < 0)
111	return ret;
112
113	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER,
114	div.clk_div - 1);
115	if (ret < 0)
116	return ret;
117
118	return 0;
119	}
120
121	static struct snd_soc_ops jive_ops = {
122	.startup = jive_startup,
123	.hw_params = jive_hw_params,
124	};
125
126	static int jive_wm8750_init(struct snd_soc_codec *codec)
127	{
128	int err;
129
130	/* These endpoints are not being used. */
131	snd_soc_dapm_disable_pin(codec, "LINPUT2");
132	snd_soc_dapm_disable_pin(codec, "RINPUT2");
133	snd_soc_dapm_disable_pin(codec, "LINPUT3");
134	snd_soc_dapm_disable_pin(codec, "RINPUT3");
135	snd_soc_dapm_disable_pin(codec, "OUT3");
136	snd_soc_dapm_disable_pin(codec, "MONO");
137
138	/* Add jive specific widgets */
139	err = snd_soc_dapm_new_controls(codec, wm8750_dapm_widgets,
140	ARRAY_SIZE(wm8750_dapm_widgets));
141	if (err) {
142	printk(KERN_ERR "%s: failed to add widgets (%d)\n",
143	__func__, err);
144	return err;
145	}
146
147	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
148	snd_soc_dapm_sync(codec);
149
150	return 0;
151	}
152
153	static struct snd_soc_dai_link jive_dai = {
154	.name = "wm8750",
155	.stream_name = "WM8750",
156	.cpu_dai = &s3c2412_i2s_dai,
157	.codec_dai = &wm8750_dai,
158	.init = jive_wm8750_init,
159	.ops = &jive_ops,
160	};
161
162	/* jive audio machine driver */
163	static struct snd_soc_machine snd_soc_machine_jive = {
164	.name = "Jive",
165	.dai_link = &jive_dai,
166	.num_links = 1,
167	};
168
169	/* jive audio private data */
170	static struct wm8750_setup_data jive_wm8750_setup = {
171	};
172
173	/* jive audio subsystem */
174	static struct snd_soc_device jive_snd_devdata = {
175	.machine = &snd_soc_machine_jive,
176	.platform = &s3c24xx_soc_platform,
177	.codec_dev = &soc_codec_dev_wm8750_spi,
178	.codec_data = &jive_wm8750_setup,
179	};
180
181	static struct platform_device *jive_snd_device;
182
183	static int __init jive_init(void)
184	{
185	int ret;
186
187	if (!machine_is_jive())
188	return 0;
189
190	printk("JIVE WM8750 Audio support\n");
191
192	jive_snd_device = platform_device_alloc("soc-audio", -1);
193	if (!jive_snd_device)
194	return -ENOMEM;
195
196	platform_set_drvdata(jive_snd_device, &jive_snd_devdata);
197	jive_snd_devdata.dev = &jive_snd_device->dev;
198	ret = platform_device_add(jive_snd_device);
199
200	if (ret)
201	platform_device_put(jive_snd_device);
202
203	return ret;
204	}
205
206	static void __exit jive_exit(void)
207	{
208	platform_device_unregister(jive_snd_device);
209	}
210
211	module_init(jive_init);
212	module_exit(jive_exit);
213
214	MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
215	MODULE_DESCRIPTION("ALSA SoC Jive Audio support");
216	MODULE_LICENSE("GPL");