[linux-2.6-block.git] / sound / soc / pxa / pxa2xx-ac97.c

/*
 * linux/sound/pxa2xx-ac97.c -- AC97 support for the Intel PXA2xx chip.
 *
 * Author:	Nicolas Pitre
 * Created:	Dec 02, 2004
 * Copyright:	MontaVista Software Inc.
 *
 * 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/init.h>
#include <linux/module.h>
#include <linux/platform_device.h>

#include <sound/core.h>
#include <sound/ac97_codec.h>
#include <sound/soc.h>
#include <sound/pxa2xx-lib.h>

#include <mach/hardware.h>
#include <mach/pxa-regs.h>
#include <mach/regs-ac97.h>

#include "pxa2xx-pcm.h"
#include "pxa2xx-ac97.h"

static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
{
	pxa2xx_ac97_try_warm_reset(ac97);

	pxa2xx_ac97_finish_reset(ac97);
}

static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
{
	pxa2xx_ac97_try_cold_reset(ac97);

	pxa2xx_ac97_finish_reset(ac97);
}

struct snd_ac97_bus_ops soc_ac97_ops = {
	.read	= pxa2xx_ac97_read,
	.write	= pxa2xx_ac97_write,
	.warm_reset	= pxa2xx_ac97_warm_reset,
	.reset	= pxa2xx_ac97_cold_reset,
};

static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_out = {
	.name			= "AC97 PCM Stereo out",
	.dev_addr		= __PREG(PCDR),
	.drcmr			= &DRCMR(12),
	.dcmd			= DCMD_INCSRCADDR | DCMD_FLOWTRG |
				  DCMD_BURST32 | DCMD_WIDTH4,
};

static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_in = {
	.name			= "AC97 PCM Stereo in",
	.dev_addr		= __PREG(PCDR),
	.drcmr			= &DRCMR(11),
	.dcmd			= DCMD_INCTRGADDR | DCMD_FLOWSRC |
				  DCMD_BURST32 | DCMD_WIDTH4,
};

static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_out = {
	.name			= "AC97 Aux PCM (Slot 5) Mono out",
	.dev_addr		= __PREG(MODR),
	.drcmr			= &DRCMR(10),
	.dcmd			= DCMD_INCSRCADDR | DCMD_FLOWTRG |
				  DCMD_BURST16 | DCMD_WIDTH2,
};

static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_in = {
	.name			= "AC97 Aux PCM (Slot 5) Mono in",
	.dev_addr		= __PREG(MODR),
	.drcmr			= &DRCMR(9),
	.dcmd			= DCMD_INCTRGADDR | DCMD_FLOWSRC |
				  DCMD_BURST16 | DCMD_WIDTH2,
};

static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_mic_mono_in = {
	.name			= "AC97 Mic PCM (Slot 6) Mono in",
	.dev_addr		= __PREG(MCDR),
	.drcmr			= &DRCMR(8),
	.dcmd			= DCMD_INCTRGADDR | DCMD_FLOWSRC |
				  DCMD_BURST16 | DCMD_WIDTH2,
};

#ifdef CONFIG_PM
static int pxa2xx_ac97_suspend(struct snd_soc_dai *dai)
{
	return pxa2xx_ac97_hw_suspend();
}

static int pxa2xx_ac97_resume(struct snd_soc_dai *dai)
{
	return pxa2xx_ac97_hw_resume();
}

#else
#define pxa2xx_ac97_suspend	NULL
#define pxa2xx_ac97_resume	NULL
#endif

static int pxa2xx_ac97_probe(struct platform_device *pdev,
			     struct snd_soc_dai *dai)
{
	return pxa2xx_ac97_hw_probe(pdev);
}

static void pxa2xx_ac97_remove(struct platform_device *pdev,
			       struct snd_soc_dai *dai)
{
	pxa2xx_ac97_hw_remove(pdev);
}

static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream,
				 struct snd_pcm_hw_params *params,
				 struct snd_soc_dai *dai)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
		cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_out;
	else
		cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_in;

	return 0;
}

static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream,
				     struct snd_pcm_hw_params *params,
				     struct snd_soc_dai *dai)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
		cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
	else
		cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_in;

	return 0;
}

static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream,
				     struct snd_pcm_hw_params *params,
				     struct snd_soc_dai *dai)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
		return -ENODEV;
	else
		cpu_dai->dma_data = &pxa2xx_ac97_pcm_mic_mono_in;

	return 0;
}

#define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
		SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
		SNDRV_PCM_RATE_48000)

/*
 * There is only 1 physical AC97 interface for pxa2xx, but it
 * has extra fifo's that can be used for aux DACs and ADCs.
 */
struct snd_soc_dai pxa_ac97_dai[] = {
{
	.name = "pxa2xx-ac97",
	.id = 0,
	.ac97_control = 1,
	.probe = pxa2xx_ac97_probe,
	.remove = pxa2xx_ac97_remove,
	.suspend = pxa2xx_ac97_suspend,
	.resume = pxa2xx_ac97_resume,
	.playback = {
		.stream_name = "AC97 Playback",
		.channels_min = 2,
		.channels_max = 2,
		.rates = PXA2XX_AC97_RATES,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
	.capture = {
		.stream_name = "AC97 Capture",
		.channels_min = 2,
		.channels_max = 2,
		.rates = PXA2XX_AC97_RATES,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
	.ops = {
		.hw_params = pxa2xx_ac97_hw_params,},
},
{
	.name = "pxa2xx-ac97-aux",
	.id = 1,
	.ac97_control = 1,
	.playback = {
		.stream_name = "AC97 Aux Playback",
		.channels_min = 1,
		.channels_max = 1,
		.rates = PXA2XX_AC97_RATES,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
	.capture = {
		.stream_name = "AC97 Aux Capture",
		.channels_min = 1,
		.channels_max = 1,
		.rates = PXA2XX_AC97_RATES,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
	.ops = {
		.hw_params = pxa2xx_ac97_hw_aux_params,},
},
{
	.name = "pxa2xx-ac97-mic",
	.id = 2,
	.ac97_control = 1,
	.capture = {
		.stream_name = "AC97 Mic Capture",
		.channels_min = 1,
		.channels_max = 1,
		.rates = PXA2XX_AC97_RATES,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
	.ops = {
		.hw_params = pxa2xx_ac97_hw_mic_params,},
},
};

EXPORT_SYMBOL_GPL(pxa_ac97_dai);
EXPORT_SYMBOL_GPL(soc_ac97_ops);

static int __init pxa_ac97_init(void)
{
	return snd_soc_register_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));
}
module_init(pxa_ac97_init);

static void __exit pxa_ac97_exit(void)
{
	snd_soc_unregister_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));
}
module_exit(pxa_ac97_exit);

MODULE_AUTHOR("Nicolas Pitre");
MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
MODULE_LICENSE("GPL");
Commit	Line	Data
75b41027 LG	1	/*
	2	* linux/sound/pxa2xx-ac97.c -- AC97 support for the Intel PXA2xx chip.
	3	*
	4	* Author: Nicolas Pitre
	5	* Created: Dec 02, 2004
	6	* Copyright: MontaVista Software Inc.
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License version 2 as
	10	* published by the Free Software Foundation.
	11	*/
	12
	13	#include <linux/init.h>
	14	#include <linux/module.h>
	15	#include <linux/platform_device.h>
75b41027	16
75b41027	17	#include <sound/core.h>
75b41027	18	#include <sound/ac97_codec.h>
75b41027	19	#include <sound/soc.h>
9c636342	20	#include <sound/pxa2xx-lib.h>
75b41027	21
a09e64fb RK	22	#include <mach/hardware.h>
a09e64fb RK	23	#include <mach/pxa-regs.h>
1f017a99	24	#include <mach/regs-ac97.h>
75b41027 LG	25
75b41027 LG	26	#include "pxa2xx-pcm.h"
596ce32b	27	#include "pxa2xx-ac97.h"
75b41027	28
75b41027 LG	29	static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
75b41027 LG	30	{
9c636342	31	pxa2xx_ac97_try_warm_reset(ac97);
75b41027	32
9c636342	33	pxa2xx_ac97_finish_reset(ac97);
75b41027 LG	34	}
	35
	36	static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
	37	{
9c636342	38	pxa2xx_ac97_try_cold_reset(ac97);
7a22323b	39
9c636342	40	pxa2xx_ac97_finish_reset(ac97);
75b41027 LG	41	}
	42
	43	struct snd_ac97_bus_ops soc_ac97_ops = {
	44	.read = pxa2xx_ac97_read,
	45	.write = pxa2xx_ac97_write,
	46	.warm_reset = pxa2xx_ac97_warm_reset,
	47	.reset = pxa2xx_ac97_cold_reset,
	48	};
	49
	50	static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_out = {
	51	.name = "AC97 PCM Stereo out",
	52	.dev_addr = __PREG(PCDR),
87f3dd77	53	.drcmr = &DRCMR(12),
75b41027 LG	54	.dcmd = DCMD_INCSRCADDR \| DCMD_FLOWTRG \|
	55	DCMD_BURST32 \| DCMD_WIDTH4,
	56	};
	57
	58	static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_in = {
	59	.name = "AC97 PCM Stereo in",
	60	.dev_addr = __PREG(PCDR),
87f3dd77	61	.drcmr = &DRCMR(11),
75b41027 LG	62	.dcmd = DCMD_INCTRGADDR \| DCMD_FLOWSRC \|
	63	DCMD_BURST32 \| DCMD_WIDTH4,
	64	};
	65
	66	static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_out = {
	67	.name = "AC97 Aux PCM (Slot 5) Mono out",
	68	.dev_addr = __PREG(MODR),
87f3dd77	69	.drcmr = &DRCMR(10),
75b41027 LG	70	.dcmd = DCMD_INCSRCADDR \| DCMD_FLOWTRG \|
	71	DCMD_BURST16 \| DCMD_WIDTH2,
	72	};
	73
	74	static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_in = {
	75	.name = "AC97 Aux PCM (Slot 5) Mono in",
	76	.dev_addr = __PREG(MODR),
87f3dd77	77	.drcmr = &DRCMR(9),
75b41027 LG	78	.dcmd = DCMD_INCTRGADDR \| DCMD_FLOWSRC \|
	79	DCMD_BURST16 \| DCMD_WIDTH2,
	80	};
	81
	82	static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_mic_mono_in = {
	83	.name = "AC97 Mic PCM (Slot 6) Mono in",
	84	.dev_addr = __PREG(MCDR),
87f3dd77	85	.drcmr = &DRCMR(8),
75b41027 LG	86	.dcmd = DCMD_INCTRGADDR \| DCMD_FLOWSRC \|
	87	DCMD_BURST16 \| DCMD_WIDTH2,
	88	};
	89
	90	#ifdef CONFIG_PM
dc7d7b83	91	static int pxa2xx_ac97_suspend(struct snd_soc_dai *dai)
75b41027	92	{
9c636342	93	return pxa2xx_ac97_hw_suspend();
75b41027 LG	94	}
75b41027 LG	95
dc7d7b83	96	static int pxa2xx_ac97_resume(struct snd_soc_dai *dai)
75b41027	97	{
9c636342	98	return pxa2xx_ac97_hw_resume();
75b41027 LG	99	}
	100
	101	#else
	102	#define pxa2xx_ac97_suspend NULL
	103	#define pxa2xx_ac97_resume NULL
	104	#endif
	105
bdb92876	106	static int pxa2xx_ac97_probe(struct platform_device *pdev,
917f93ac	107	struct snd_soc_dai *dai)
75b41027	108	{
9c636342	109	return pxa2xx_ac97_hw_probe(pdev);
75b41027 LG	110	}
75b41027 LG	111
a84534dc DB	112	static void pxa2xx_ac97_remove(struct platform_device *pdev,
a84534dc DB	113	struct snd_soc_dai *dai)
75b41027	114	{
9c636342	115	pxa2xx_ac97_hw_remove(pdev);
75b41027 LG	116	}
	117
	118	static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream,
dee89c4d MB	119	struct snd_pcm_hw_params *params,
dee89c4d MB	120	struct snd_soc_dai *dai)
75b41027 LG	121	{
75b41027 LG	122	struct snd_soc_pcm_runtime *rtd = substream->private_data;
917f93ac	123	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
75b41027 LG	124
75b41027 LG	125	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
596ce32b	126	cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_out;
75b41027	127	else
596ce32b	128	cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_in;
75b41027 LG	129
	130	return 0;
	131	}
	132
	133	static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream,
dee89c4d MB	134	struct snd_pcm_hw_params *params,
dee89c4d MB	135	struct snd_soc_dai *dai)
75b41027 LG	136	{
75b41027 LG	137	struct snd_soc_pcm_runtime *rtd = substream->private_data;
917f93ac	138	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
75b41027 LG	139
75b41027 LG	140	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
596ce32b	141	cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
75b41027	142	else
596ce32b	143	cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
75b41027 LG	144
	145	return 0;
	146	}
	147
	148	static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream,
dee89c4d MB	149	struct snd_pcm_hw_params *params,
dee89c4d MB	150	struct snd_soc_dai *dai)
75b41027 LG	151	{
75b41027 LG	152	struct snd_soc_pcm_runtime *rtd = substream->private_data;
917f93ac	153	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
75b41027 LG	154
	155	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
	156	return -ENODEV;
	157	else
596ce32b	158	cpu_dai->dma_data = &pxa2xx_ac97_pcm_mic_mono_in;
75b41027 LG	159
	160	return 0;
	161	}
	162
596ce32b LG	163	#define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 \| SNDRV_PCM_RATE_11025 \|\
	164	SNDRV_PCM_RATE_16000 \| SNDRV_PCM_RATE_22050 \| SNDRV_PCM_RATE_44100 \| \
	165	SNDRV_PCM_RATE_48000)
	166
75b41027 LG	167	/*
	168	* There is only 1 physical AC97 interface for pxa2xx, but it
	169	* has extra fifo's that can be used for aux DACs and ADCs.
	170	*/
917f93ac	171	struct snd_soc_dai pxa_ac97_dai[] = {
75b41027 LG	172	{
	173	.name = "pxa2xx-ac97",
	174	.id = 0,
3ba9e10a	175	.ac97_control = 1,
75b41027 LG	176	.probe = pxa2xx_ac97_probe,
	177	.remove = pxa2xx_ac97_remove,
	178	.suspend = pxa2xx_ac97_suspend,
	179	.resume = pxa2xx_ac97_resume,
	180	.playback = {
	181	.stream_name = "AC97 Playback",
	182	.channels_min = 2,
596ce32b LG	183	.channels_max = 2,
	184	.rates = PXA2XX_AC97_RATES,
	185	.formats = SNDRV_PCM_FMTBIT_S16_LE,},
75b41027 LG	186	.capture = {
	187	.stream_name = "AC97 Capture",
	188	.channels_min = 2,
596ce32b LG	189	.channels_max = 2,
	190	.rates = PXA2XX_AC97_RATES,
	191	.formats = SNDRV_PCM_FMTBIT_S16_LE,},
75b41027 LG	192	.ops = {
75b41027 LG	193	.hw_params = pxa2xx_ac97_hw_params,},
75b41027 LG	194	},
	195	{
	196	.name = "pxa2xx-ac97-aux",
	197	.id = 1,
3ba9e10a	198	.ac97_control = 1,
75b41027 LG	199	.playback = {
	200	.stream_name = "AC97 Aux Playback",
	201	.channels_min = 1,
596ce32b LG	202	.channels_max = 1,
	203	.rates = PXA2XX_AC97_RATES,
	204	.formats = SNDRV_PCM_FMTBIT_S16_LE,},
75b41027 LG	205	.capture = {
	206	.stream_name = "AC97 Aux Capture",
	207	.channels_min = 1,
596ce32b LG	208	.channels_max = 1,
	209	.rates = PXA2XX_AC97_RATES,
	210	.formats = SNDRV_PCM_FMTBIT_S16_LE,},
75b41027 LG	211	.ops = {
75b41027 LG	212	.hw_params = pxa2xx_ac97_hw_aux_params,},
75b41027 LG	213	},
	214	{
	215	.name = "pxa2xx-ac97-mic",
	216	.id = 2,
3ba9e10a	217	.ac97_control = 1,
75b41027 LG	218	.capture = {
	219	.stream_name = "AC97 Mic Capture",
	220	.channels_min = 1,
596ce32b LG	221	.channels_max = 1,
	222	.rates = PXA2XX_AC97_RATES,
	223	.formats = SNDRV_PCM_FMTBIT_S16_LE,},
75b41027 LG	224	.ops = {
75b41027 LG	225	.hw_params = pxa2xx_ac97_hw_mic_params,},
596ce32b	226	},
75b41027 LG	227	};
	228
	229	EXPORT_SYMBOL_GPL(pxa_ac97_dai);
	230	EXPORT_SYMBOL_GPL(soc_ac97_ops);
	231
c9b3a40f	232	static int __init pxa_ac97_init(void)
3f4b783c MB	233	{
	234	return snd_soc_register_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));
	235	}
	236	module_init(pxa_ac97_init);
	237
	238	static void __exit pxa_ac97_exit(void)
	239	{
	240	snd_soc_unregister_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));
	241	}
	242	module_exit(pxa_ac97_exit);
	243
75b41027 LG	244	MODULE_AUTHOR("Nicolas Pitre");
	245	MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
	246	MODULE_LICENSE("GPL");