285 lines
7.1 KiB
C
285 lines
7.1 KiB
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(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;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(pxa_ac97_dai); i++)
|
|
pxa_ac97_dai[i].dev = &pdev->dev;
|
|
|
|
/* 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");
|