sound/soc/pxa/pxa2xx-ac97.c - kernel/prism - Git at Google

 /*
  * 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/regs-ac97.h>
 #include <mach/dma.h>
 #include <mach/audio.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(to_platform_device(dai->dev));
 }

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

 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)

 static struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = {
 	.hw_params	= pxa2xx_ac97_hw_params,
 };

 static struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = {
 	.hw_params	= pxa2xx_ac97_hw_aux_params,
 };

 static struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = {
 	.hw_params	= pxa2xx_ac97_hw_mic_params,
 };

 /*
  * 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 = &pxa_ac97_hifi_dai_ops,
 },
 {
 	.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 = &pxa_ac97_aux_dai_ops,
 },
 {
 	.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 = &pxa_ac97_mic_dai_ops,
 },
 };

 EXPORT_SYMBOL_GPL(pxa_ac97_dai);
 EXPORT_SYMBOL_GPL(soc_ac97_ops);

 static int __devinit pxa2xx_ac97_dev_probe(struct platform_device *pdev)
 {
 	int i;
 	pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data;

 	if (pdev->id >= 0) {
 		dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
 		return -ENXIO;
 	}

 	for (i = 0; i < ARRAY_SIZE(pxa_ac97_dai); i++) {
 		pxa_ac97_dai[i].dev = &pdev->dev;
 		if (pdata && pdata->codec_pdata[0])
 			pxa_ac97_dai[i].ac97_pdata = pdata->codec_pdata[0];
 	}

 	/* Punt most of the init to the SoC probe; we may need the machine
 	 * driver to do interesting things with the clocking to get us up
 	 * and running.
 	 */
 	return snd_soc_register_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));
 }

 static int __devexit pxa2xx_ac97_dev_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));

 	return 0;
 }

 static struct platform_driver pxa2xx_ac97_driver = {
 	.probe		= pxa2xx_ac97_dev_probe,
 	.remove		= __devexit_p(pxa2xx_ac97_dev_remove),
 	.driver		= {
 		.name	= "pxa2xx-ac97",
 		.owner	= THIS_MODULE,
 	},
 };

 static int __init pxa_ac97_init(void)
 {
 	return platform_driver_register(&pxa2xx_ac97_driver);
 }
 module_init(pxa_ac97_init);

 static void __exit pxa_ac97_exit(void)
 {
 	platform_driver_unregister(&pxa2xx_ac97_driver);
 }
 module_exit(pxa_ac97_exit);

 MODULE_AUTHOR("Nicolas Pitre");
 MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
 MODULE_LICENSE("GPL");
	/*
	* 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/regs-ac97.h>
	#include <mach/dma.h>
	#include <mach/audio.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(to_platform_device(dai->dev));
	}

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

	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)

	static struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = {
	.hw_params = pxa2xx_ac97_hw_params,
	};

	static struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = {
	.hw_params = pxa2xx_ac97_hw_aux_params,
	};

	static struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = {
	.hw_params = pxa2xx_ac97_hw_mic_params,
	};

	/*
	* 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 = &pxa_ac97_hifi_dai_ops,
	},
	{
	.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 = &pxa_ac97_aux_dai_ops,
	},
	{
	.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 = &pxa_ac97_mic_dai_ops,
	},
	};

	EXPORT_SYMBOL_GPL(pxa_ac97_dai);
	EXPORT_SYMBOL_GPL(soc_ac97_ops);

	static int __devinit pxa2xx_ac97_dev_probe(struct platform_device *pdev)
	{
	int i;
	pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data;

	if (pdev->id >= 0) {
	dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
	return -ENXIO;
	}

	for (i = 0; i < ARRAY_SIZE(pxa_ac97_dai); i++) {
	pxa_ac97_dai[i].dev = &pdev->dev;
	if (pdata && pdata->codec_pdata[0])
	pxa_ac97_dai[i].ac97_pdata = pdata->codec_pdata[0];
	}

	/* Punt most of the init to the SoC probe; we may need the machine
	* driver to do interesting things with the clocking to get us up
	* and running.
	*/
	return snd_soc_register_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));
	}

	static int __devexit pxa2xx_ac97_dev_remove(struct platform_device *pdev)
	{
	snd_soc_unregister_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));

	return 0;
	}

	static struct platform_driver pxa2xx_ac97_driver = {
	.probe = pxa2xx_ac97_dev_probe,
	.remove = __devexit_p(pxa2xx_ac97_dev_remove),
	.driver = {
	.name = "pxa2xx-ac97",
	.owner = THIS_MODULE,
	},
	};

	static int __init pxa_ac97_init(void)
	{
	return platform_driver_register(&pxa2xx_ac97_driver);
	}
	module_init(pxa_ac97_init);

	static void __exit pxa_ac97_exit(void)
	{
	platform_driver_unregister(&pxa2xx_ac97_driver);
	}
	module_exit(pxa_ac97_exit);

	MODULE_AUTHOR("Nicolas Pitre");
	MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
	MODULE_LICENSE("GPL");