[deliverable/linux.git] / sound / soc / omap / n810.c

/*
 * n810.c  --  SoC audio for Nokia N810
 *
 * Copyright (C) 2008 Nokia Corporation
 *
 * Contact: Jarkko Nikula <jarkko.nikula@nokia.com>
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

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

#include <asm/mach-types.h>
#include <asm/arch/hardware.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mcbsp.h>

#include "omap-mcbsp.h"
#include "omap-pcm.h"
#include "../codecs/tlv320aic3x.h"

#define RX44_HEADSET_AMP_GPIO	10
#define RX44_SPEAKER_AMP_GPIO	101

static struct clk *sys_clkout2;
static struct clk *sys_clkout2_src;
static struct clk *func96m_clk;

static int n810_spk_func;
static int n810_jack_func;

static void n810_ext_control(struct snd_soc_codec *codec)
{
	snd_soc_dapm_set_endpoint(codec, "Ext Spk", n810_spk_func);
	snd_soc_dapm_set_endpoint(codec, "Headphone Jack", n810_jack_func);

	snd_soc_dapm_sync_endpoints(codec);
}

static int n810_startup(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_codec *codec = rtd->socdev->codec;

	n810_ext_control(codec);
	return clk_enable(sys_clkout2);
}

static void n810_shutdown(struct snd_pcm_substream *substream)
{
	clk_disable(sys_clkout2);
}

static int n810_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_codec_dai *codec_dai = rtd->dai->codec_dai;
	struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
	int err;

	/* Set codec DAI configuration */
	err = codec_dai->dai_ops.set_fmt(codec_dai,
					 SND_SOC_DAIFMT_I2S |
					 SND_SOC_DAIFMT_NB_NF |
					 SND_SOC_DAIFMT_CBM_CFM);
	if (err < 0)
		return err;

	/* Set cpu DAI configuration */
	err = cpu_dai->dai_ops.set_fmt(cpu_dai,
				       SND_SOC_DAIFMT_I2S |
				       SND_SOC_DAIFMT_NB_NF |
				       SND_SOC_DAIFMT_CBM_CFM);
	if (err < 0)
		return err;

	/* Set the codec system clock for DAC and ADC */
	err = codec_dai->dai_ops.set_sysclk(codec_dai, 0, 12000000,
					    SND_SOC_CLOCK_IN);

	return err;
}

static struct snd_soc_ops n810_ops = {
	.startup = n810_startup,
	.hw_params = n810_hw_params,
	.shutdown = n810_shutdown,
};

static int n810_get_spk(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = n810_spk_func;

	return 0;
}

static int n810_set_spk(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);

	if (n810_spk_func == ucontrol->value.integer.value[0])
		return 0;

	n810_spk_func = ucontrol->value.integer.value[0];
	n810_ext_control(codec);

	return 1;
}

static int n810_get_jack(struct snd_kcontrol *kcontrol,
			 struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = n810_jack_func;

	return 0;
}

static int n810_set_jack(struct snd_kcontrol *kcontrol,
			 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);

	if (n810_jack_func == ucontrol->value.integer.value[0])
		return 0;

	n810_jack_func = ucontrol->value.integer.value[0];
	n810_ext_control(codec);

	return 1;
}

static int n810_spk_event(struct snd_soc_dapm_widget *w,
			  struct snd_kcontrol *k, int event)
{
	if (SND_SOC_DAPM_EVENT_ON(event))
		omap_set_gpio_dataout(RX44_SPEAKER_AMP_GPIO, 1);
	else
		omap_set_gpio_dataout(RX44_SPEAKER_AMP_GPIO, 0);

	return 0;
}

static int n810_jack_event(struct snd_soc_dapm_widget *w,
			   struct snd_kcontrol *k, int event)
{
	if (SND_SOC_DAPM_EVENT_ON(event))
		omap_set_gpio_dataout(RX44_HEADSET_AMP_GPIO, 1);
	else
		omap_set_gpio_dataout(RX44_HEADSET_AMP_GPIO, 0);

	return 0;
}

static const struct snd_soc_dapm_widget aic33_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Ext Spk", n810_spk_event),
	SND_SOC_DAPM_HP("Headphone Jack", n810_jack_event),
};

static const char *audio_map[][3] = {
	{"Headphone Jack", NULL, "HPLOUT"},
	{"Headphone Jack", NULL, "HPROUT"},

	{"Ext Spk", NULL, "LLOUT"},
	{"Ext Spk", NULL, "RLOUT"},
};

static const char *spk_function[] = {"Off", "On"};
static const char *jack_function[] = {"Off", "Headphone"};
static const struct soc_enum n810_enum[] = {
	SOC_ENUM_SINGLE_EXT(2, spk_function),
	SOC_ENUM_SINGLE_EXT(3, jack_function),
};

static const struct snd_kcontrol_new aic33_n810_controls[] = {
	SOC_ENUM_EXT("Speaker Function", n810_enum[0],
		     n810_get_spk, n810_set_spk),
	SOC_ENUM_EXT("Jack Function", n810_enum[1],
		     n810_get_jack, n810_set_jack),
};

static int n810_aic33_init(struct snd_soc_codec *codec)
{
	int i, err;

	/* Not connected */
	snd_soc_dapm_set_endpoint(codec, "MONO_LOUT", 0);
	snd_soc_dapm_set_endpoint(codec, "HPLCOM", 0);
	snd_soc_dapm_set_endpoint(codec, "HPRCOM", 0);

	/* Add N810 specific controls */
	for (i = 0; i < ARRAY_SIZE(aic33_n810_controls); i++) {
		err = snd_ctl_add(codec->card,
			snd_soc_cnew(&aic33_n810_controls[i], codec, NULL));
		if (err < 0)
			return err;
	}

	/* Add N810 specific widgets */
	for (i = 0; i < ARRAY_SIZE(aic33_dapm_widgets); i++)
		snd_soc_dapm_new_control(codec, &aic33_dapm_widgets[i]);

	/* Set up N810 specific audio path audio_map */
	for (i = 0; i < ARRAY_SIZE(audio_map); i++)
		snd_soc_dapm_connect_input(codec, audio_map[i][0],
			audio_map[i][1], audio_map[i][2]);

	snd_soc_dapm_sync_endpoints(codec);

	return 0;
}

/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link n810_dai = {
	.name = "TLV320AIC33",
	.stream_name = "AIC33",
	.cpu_dai = &omap_mcbsp_dai[0],
	.codec_dai = &aic3x_dai,
	.init = n810_aic33_init,
	.ops = &n810_ops,
};

/* Audio machine driver */
static struct snd_soc_machine snd_soc_machine_n810 = {
	.name = "N810",
	.dai_link = &n810_dai,
	.num_links = 1,
};

/* Audio private data */
static struct aic3x_setup_data n810_aic33_setup = {
	.i2c_address = 0x18,
};

/* Audio subsystem */
static struct snd_soc_device n810_snd_devdata = {
	.machine = &snd_soc_machine_n810,
	.platform = &omap_soc_platform,
	.codec_dev = &soc_codec_dev_aic3x,
	.codec_data = &n810_aic33_setup,
};

static struct platform_device *n810_snd_device;

static int __init n810_soc_init(void)
{
	int err;
	struct device *dev;

	if (!machine_is_nokia_n810())
		return -ENODEV;

	n810_snd_device = platform_device_alloc("soc-audio", -1);
	if (!n810_snd_device)
		return -ENOMEM;

	platform_set_drvdata(n810_snd_device, &n810_snd_devdata);
	n810_snd_devdata.dev = &n810_snd_device->dev;
	*(unsigned int *)n810_dai.cpu_dai->private_data = 1; /* McBSP2 */
	err = platform_device_add(n810_snd_device);
	if (err)
		goto err1;

	dev = &n810_snd_device->dev;

	sys_clkout2_src = clk_get(dev, "sys_clkout2_src");
	if (IS_ERR(sys_clkout2_src)) {
		dev_err(dev, "Could not get sys_clkout2_src clock\n");
		return -ENODEV;
	}
	sys_clkout2 = clk_get(dev, "sys_clkout2");
	if (IS_ERR(sys_clkout2)) {
		dev_err(dev, "Could not get sys_clkout2\n");
		goto err1;
	}
	/*
	 * Configure 12 MHz output on SYS_CLKOUT2. Therefore we must use
	 * 96 MHz as its parent in order to get 12 MHz
	 */
	func96m_clk = clk_get(dev, "func_96m_ck");
	if (IS_ERR(func96m_clk)) {
		dev_err(dev, "Could not get func 96M clock\n");
		goto err2;
	}
	clk_set_parent(sys_clkout2_src, func96m_clk);
	clk_set_rate(sys_clkout2, 12000000);

	if (omap_request_gpio(RX44_HEADSET_AMP_GPIO) < 0)
		BUG();
	if (omap_request_gpio(RX44_SPEAKER_AMP_GPIO) < 0)
		BUG();
	omap_set_gpio_direction(RX44_HEADSET_AMP_GPIO, 0);
	omap_set_gpio_direction(RX44_SPEAKER_AMP_GPIO, 0);

	return 0;
err2:
	clk_put(sys_clkout2);
	platform_device_del(n810_snd_device);
err1:
	platform_device_put(n810_snd_device);

	return err;

}

static void __exit n810_soc_exit(void)
{
	platform_device_unregister(n810_snd_device);
}

module_init(n810_soc_init);
module_exit(n810_soc_exit);

MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@nokia.com>");
MODULE_DESCRIPTION("ALSA SoC Nokia N810");
MODULE_LICENSE("GPL");
Commit	Line	Data
2e74796a JN	1	/*
	2	* n810.c -- SoC audio for Nokia N810
	3	*
	4	* Copyright (C) 2008 Nokia Corporation
	5	*
	6	* Contact: Jarkko Nikula <jarkko.nikula@nokia.com>
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License
	10	* version 2 as published by the Free Software Foundation.
	11	*
	12	* This program is distributed in the hope that it will be useful, but
	13	* WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	20	* 02110-1301 USA
	21	*
	22	*/
	23
	24	#include <linux/clk.h>
	25	#include <linux/platform_device.h>
	26	#include <sound/core.h>
	27	#include <sound/pcm.h>
	28	#include <sound/soc.h>
	29	#include <sound/soc-dapm.h>
	30
	31	#include <asm/mach-types.h>
	32	#include <asm/arch/hardware.h>
	33	#include <asm/arch/gpio.h>
	34	#include <asm/arch/mcbsp.h>
	35
	36	#include "omap-mcbsp.h"
	37	#include "omap-pcm.h"
	38	#include "../codecs/tlv320aic3x.h"
	39
	40	#define RX44_HEADSET_AMP_GPIO 10
	41	#define RX44_SPEAKER_AMP_GPIO 101
	42
	43	static struct clk *sys_clkout2;
	44	static struct clk *sys_clkout2_src;
	45	static struct clk *func96m_clk;
	46
	47	static int n810_spk_func;
	48	static int n810_jack_func;
	49
	50	static void n810_ext_control(struct snd_soc_codec *codec)
	51	{
	52	snd_soc_dapm_set_endpoint(codec, "Ext Spk", n810_spk_func);
	53	snd_soc_dapm_set_endpoint(codec, "Headphone Jack", n810_jack_func);
	54
	55	snd_soc_dapm_sync_endpoints(codec);
	56	}
	57
	58	static int n810_startup(struct snd_pcm_substream *substream)
	59	{
	60	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	61	struct snd_soc_codec *codec = rtd->socdev->codec;
	62
	63	n810_ext_control(codec);
	64	return clk_enable(sys_clkout2);
65	}
66
67	static void n810_shutdown(struct snd_pcm_substream *substream)
68	{
69	clk_disable(sys_clkout2);
70	}
71
72	static int n810_hw_params(struct snd_pcm_substream *substream,
73	struct snd_pcm_hw_params *params)
74	{
75	struct snd_soc_pcm_runtime *rtd = substream->private_data;
76	struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai;
77	struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
78	int err;
79
80	/* Set codec DAI configuration */
81	err = codec_dai->dai_ops.set_fmt(codec_dai,
82	SND_SOC_DAIFMT_I2S \|
83	SND_SOC_DAIFMT_NB_NF \|
84	SND_SOC_DAIFMT_CBM_CFM);
85	if (err < 0)
86	return err;
87
88	/* Set cpu DAI configuration */
89	err = cpu_dai->dai_ops.set_fmt(cpu_dai,
90	SND_SOC_DAIFMT_I2S \|
91	SND_SOC_DAIFMT_NB_NF \|
92	SND_SOC_DAIFMT_CBM_CFM);
93	if (err < 0)
94	return err;
95
96	/* Set the codec system clock for DAC and ADC */
97	err = codec_dai->dai_ops.set_sysclk(codec_dai, 0, 12000000,
98	SND_SOC_CLOCK_IN);
99
100	return err;
101	}
102
103	static struct snd_soc_ops n810_ops = {
104	.startup = n810_startup,
105	.hw_params = n810_hw_params,
106	.shutdown = n810_shutdown,
107	};
108
109	static int n810_get_spk(struct snd_kcontrol *kcontrol,
110	struct snd_ctl_elem_value *ucontrol)
111	{
112	ucontrol->value.integer.value[0] = n810_spk_func;
113
114	return 0;
115	}
116
117	static int n810_set_spk(struct snd_kcontrol *kcontrol,
118	struct snd_ctl_elem_value *ucontrol)
119	{
120	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
121
122	if (n810_spk_func == ucontrol->value.integer.value[0])
123	return 0;
124
125	n810_spk_func = ucontrol->value.integer.value[0];
126	n810_ext_control(codec);
127
128	return 1;
129	}
130
131	static int n810_get_jack(struct snd_kcontrol *kcontrol,
132	struct snd_ctl_elem_value *ucontrol)
133	{
134	ucontrol->value.integer.value[0] = n810_jack_func;
135
136	return 0;
137	}
138
139	static int n810_set_jack(struct snd_kcontrol *kcontrol,
140	struct snd_ctl_elem_value *ucontrol)
141	{
142	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
143
144	if (n810_jack_func == ucontrol->value.integer.value[0])
145	return 0;
146
147	n810_jack_func = ucontrol->value.integer.value[0];
148	n810_ext_control(codec);
149
150	return 1;
151	}
152
153	static int n810_spk_event(struct snd_soc_dapm_widget *w,
154	struct snd_kcontrol *k, int event)
155	{
156	if (SND_SOC_DAPM_EVENT_ON(event))
157	omap_set_gpio_dataout(RX44_SPEAKER_AMP_GPIO, 1);
158	else
159	omap_set_gpio_dataout(RX44_SPEAKER_AMP_GPIO, 0);
160
161	return 0;
162	}
163
164	static int n810_jack_event(struct snd_soc_dapm_widget *w,
165	struct snd_kcontrol *k, int event)
166	{
167	if (SND_SOC_DAPM_EVENT_ON(event))
168	omap_set_gpio_dataout(RX44_HEADSET_AMP_GPIO, 1);
169	else
170	omap_set_gpio_dataout(RX44_HEADSET_AMP_GPIO, 0);
171
172	return 0;
173	}
174
175	static const struct snd_soc_dapm_widget aic33_dapm_widgets[] = {
176	SND_SOC_DAPM_SPK("Ext Spk", n810_spk_event),
177	SND_SOC_DAPM_HP("Headphone Jack", n810_jack_event),
178	};
179
180	static const char *audio_map[][3] = {
181	{"Headphone Jack", NULL, "HPLOUT"},
182	{"Headphone Jack", NULL, "HPROUT"},
183
184	{"Ext Spk", NULL, "LLOUT"},
185	{"Ext Spk", NULL, "RLOUT"},
186	};
187
188	static const char *spk_function[] = {"Off", "On"};
189	static const char *jack_function[] = {"Off", "Headphone"};
190	static const struct soc_enum n810_enum[] = {
191	SOC_ENUM_SINGLE_EXT(2, spk_function),
192	SOC_ENUM_SINGLE_EXT(3, jack_function),
193	};
194
195	static const struct snd_kcontrol_new aic33_n810_controls[] = {
196	SOC_ENUM_EXT("Speaker Function", n810_enum[0],
197	n810_get_spk, n810_set_spk),
198	SOC_ENUM_EXT("Jack Function", n810_enum[1],
199	n810_get_jack, n810_set_jack),
200	};
201
202	static int n810_aic33_init(struct snd_soc_codec *codec)
203	{
204	int i, err;
205
206	/* Not connected */
207	snd_soc_dapm_set_endpoint(codec, "MONO_LOUT", 0);
208	snd_soc_dapm_set_endpoint(codec, "HPLCOM", 0);
209	snd_soc_dapm_set_endpoint(codec, "HPRCOM", 0);
210
211	/* Add N810 specific controls */
212	for (i = 0; i < ARRAY_SIZE(aic33_n810_controls); i++) {
213	err = snd_ctl_add(codec->card,
214	snd_soc_cnew(&aic33_n810_controls[i], codec, NULL));
215	if (err < 0)
216	return err;
217	}
218
219	/* Add N810 specific widgets */
220	for (i = 0; i < ARRAY_SIZE(aic33_dapm_widgets); i++)
221	snd_soc_dapm_new_control(codec, &aic33_dapm_widgets[i]);
222
223	/* Set up N810 specific audio path audio_map */
224	for (i = 0; i < ARRAY_SIZE(audio_map); i++)
225	snd_soc_dapm_connect_input(codec, audio_map[i][0],
226	audio_map[i][1], audio_map[i][2]);
227
228	snd_soc_dapm_sync_endpoints(codec);
229
230	return 0;
231	}
232
233	/* Digital audio interface glue - connects codec <--> CPU */
234	static struct snd_soc_dai_link n810_dai = {
235	.name = "TLV320AIC33",
236	.stream_name = "AIC33",
237	.cpu_dai = &omap_mcbsp_dai[0],
238	.codec_dai = &aic3x_dai,
239	.init = n810_aic33_init,
240	.ops = &n810_ops,
241	};
242
243	/* Audio machine driver */
244	static struct snd_soc_machine snd_soc_machine_n810 = {
245	.name = "N810",
246	.dai_link = &n810_dai,
247	.num_links = 1,
248	};
249
250	/* Audio private data */
251	static struct aic3x_setup_data n810_aic33_setup = {
252	.i2c_address = 0x18,
253	};
254
255	/* Audio subsystem */
256	static struct snd_soc_device n810_snd_devdata = {
257	.machine = &snd_soc_machine_n810,
258	.platform = &omap_soc_platform,
259	.codec_dev = &soc_codec_dev_aic3x,
260	.codec_data = &n810_aic33_setup,
261	};
262
263	static struct platform_device *n810_snd_device;
264
265	static int __init n810_soc_init(void)
266	{
267	int err;
268	struct device *dev;
269
270	if (!machine_is_nokia_n810())
271	return -ENODEV;
272
273	n810_snd_device = platform_device_alloc("soc-audio", -1);
274	if (!n810_snd_device)
275	return -ENOMEM;
276
277	platform_set_drvdata(n810_snd_device, &n810_snd_devdata);
278	n810_snd_devdata.dev = &n810_snd_device->dev;
279	(unsigned int )n810_dai.cpu_dai->private_data = 1; /* McBSP2 */
280	err = platform_device_add(n810_snd_device);
281	if (err)
282	goto err1;
283
284	dev = &n810_snd_device->dev;
285
286	sys_clkout2_src = clk_get(dev, "sys_clkout2_src");
287	if (IS_ERR(sys_clkout2_src)) {
288	dev_err(dev, "Could not get sys_clkout2_src clock\n");
289	return -ENODEV;
290	}
291	sys_clkout2 = clk_get(dev, "sys_clkout2");
292	if (IS_ERR(sys_clkout2)) {
293	dev_err(dev, "Could not get sys_clkout2\n");
294	goto err1;
295	}
296	/*
297	* Configure 12 MHz output on SYS_CLKOUT2. Therefore we must use
298	* 96 MHz as its parent in order to get 12 MHz
299	*/
300	func96m_clk = clk_get(dev, "func_96m_ck");
301	if (IS_ERR(func96m_clk)) {
302	dev_err(dev, "Could not get func 96M clock\n");
303	goto err2;
304	}
305	clk_set_parent(sys_clkout2_src, func96m_clk);
306	clk_set_rate(sys_clkout2, 12000000);
307
308	if (omap_request_gpio(RX44_HEADSET_AMP_GPIO) < 0)
309	BUG();
310	if (omap_request_gpio(RX44_SPEAKER_AMP_GPIO) < 0)
311	BUG();
312	omap_set_gpio_direction(RX44_HEADSET_AMP_GPIO, 0);
313	omap_set_gpio_direction(RX44_SPEAKER_AMP_GPIO, 0);
314
315	return 0;
316	err2:
317	clk_put(sys_clkout2);
318	platform_device_del(n810_snd_device);
319	err1:
320	platform_device_put(n810_snd_device);
321
322	return err;
323
324	}
325
326	static void __exit n810_soc_exit(void)
327	{
328	platform_device_unregister(n810_snd_device);
329	}
330
331	module_init(n810_soc_init);
332	module_exit(n810_soc_exit);
333
334	MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@nokia.com>");
335	MODULE_DESCRIPTION("ALSA SoC Nokia N810");
336	MODULE_LICENSE("GPL");