forked from Minki/linux
7f2da3d76b
Now with the recent addition of WC buffer allocation support, we can use the standard PCM buffer allocation helpers for pxa2xx drivers. This allows us to remove lots of superfluous code. Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20210802072815.13551-6-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
300 lines
7.5 KiB
C
300 lines
7.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* linux/sound/pxa2xx-ac97.c -- AC97 support for the Intel PXA2xx chip.
|
|
*
|
|
* Author: Nicolas Pitre
|
|
* Created: Dec 02, 2004
|
|
* Copyright: MontaVista Software Inc.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/io.h>
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/dmaengine.h>
|
|
#include <linux/dma/pxa-dma.h>
|
|
|
|
#include <sound/ac97/controller.h>
|
|
#include <sound/core.h>
|
|
#include <sound/ac97_codec.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/pxa2xx-lib.h>
|
|
#include <sound/dmaengine_pcm.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <mach/regs-ac97.h>
|
|
#include <mach/audio.h>
|
|
|
|
static void pxa2xx_ac97_warm_reset(struct ac97_controller *adrv)
|
|
{
|
|
pxa2xx_ac97_try_warm_reset();
|
|
|
|
pxa2xx_ac97_finish_reset();
|
|
}
|
|
|
|
static void pxa2xx_ac97_cold_reset(struct ac97_controller *adrv)
|
|
{
|
|
pxa2xx_ac97_try_cold_reset();
|
|
|
|
pxa2xx_ac97_finish_reset();
|
|
}
|
|
|
|
static int pxa2xx_ac97_read_actrl(struct ac97_controller *adrv, int slot,
|
|
unsigned short reg)
|
|
{
|
|
return pxa2xx_ac97_read(slot, reg);
|
|
}
|
|
|
|
static int pxa2xx_ac97_write_actrl(struct ac97_controller *adrv, int slot,
|
|
unsigned short reg, unsigned short val)
|
|
{
|
|
return pxa2xx_ac97_write(slot, reg, val);
|
|
}
|
|
|
|
static struct ac97_controller_ops pxa2xx_ac97_ops = {
|
|
.read = pxa2xx_ac97_read_actrl,
|
|
.write = pxa2xx_ac97_write_actrl,
|
|
.warm_reset = pxa2xx_ac97_warm_reset,
|
|
.reset = pxa2xx_ac97_cold_reset,
|
|
};
|
|
|
|
static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_in = {
|
|
.addr = __PREG(PCDR),
|
|
.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
|
|
.chan_name = "pcm_pcm_stereo_in",
|
|
.maxburst = 32,
|
|
};
|
|
|
|
static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_out = {
|
|
.addr = __PREG(PCDR),
|
|
.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
|
|
.chan_name = "pcm_pcm_stereo_out",
|
|
.maxburst = 32,
|
|
};
|
|
|
|
static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_out = {
|
|
.addr = __PREG(MODR),
|
|
.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
|
|
.chan_name = "pcm_aux_mono_out",
|
|
.maxburst = 16,
|
|
};
|
|
|
|
static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_in = {
|
|
.addr = __PREG(MODR),
|
|
.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
|
|
.chan_name = "pcm_aux_mono_in",
|
|
.maxburst = 16,
|
|
};
|
|
|
|
static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_mic_mono_in = {
|
|
.addr = __PREG(MCDR),
|
|
.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
|
|
.chan_name = "pcm_aux_mic_mono",
|
|
.maxburst = 16,
|
|
};
|
|
|
|
static int pxa2xx_ac97_hifi_startup(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *cpu_dai)
|
|
{
|
|
struct snd_dmaengine_dai_dma_data *dma_data;
|
|
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
|
|
dma_data = &pxa2xx_ac97_pcm_stereo_out;
|
|
else
|
|
dma_data = &pxa2xx_ac97_pcm_stereo_in;
|
|
|
|
snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pxa2xx_ac97_aux_startup(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *cpu_dai)
|
|
{
|
|
struct snd_dmaengine_dai_dma_data *dma_data;
|
|
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
|
|
dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
|
|
else
|
|
dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
|
|
|
|
snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pxa2xx_ac97_mic_startup(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *cpu_dai)
|
|
{
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
|
|
return -ENODEV;
|
|
snd_soc_dai_set_dma_data(cpu_dai, substream,
|
|
&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 const struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = {
|
|
.startup = pxa2xx_ac97_hifi_startup,
|
|
};
|
|
|
|
static const struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = {
|
|
.startup = pxa2xx_ac97_aux_startup,
|
|
};
|
|
|
|
static const struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = {
|
|
.startup = pxa2xx_ac97_mic_startup,
|
|
};
|
|
|
|
/*
|
|
* There is only 1 physical AC97 interface for pxa2xx, but it
|
|
* has extra fifo's that can be used for aux DACs and ADCs.
|
|
*/
|
|
static struct snd_soc_dai_driver pxa_ac97_dai_driver[] = {
|
|
{
|
|
.name = "pxa2xx-ac97",
|
|
.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",
|
|
.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",
|
|
.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,
|
|
},
|
|
};
|
|
|
|
static const struct snd_soc_component_driver pxa_ac97_component = {
|
|
.name = "pxa-ac97",
|
|
.pcm_construct = pxa2xx_soc_pcm_new,
|
|
.open = pxa2xx_soc_pcm_open,
|
|
.close = pxa2xx_soc_pcm_close,
|
|
.hw_params = pxa2xx_soc_pcm_hw_params,
|
|
.prepare = pxa2xx_soc_pcm_prepare,
|
|
.trigger = pxa2xx_soc_pcm_trigger,
|
|
.pointer = pxa2xx_soc_pcm_pointer,
|
|
};
|
|
|
|
#ifdef CONFIG_OF
|
|
static const struct of_device_id pxa2xx_ac97_dt_ids[] = {
|
|
{ .compatible = "marvell,pxa250-ac97", },
|
|
{ .compatible = "marvell,pxa270-ac97", },
|
|
{ .compatible = "marvell,pxa300-ac97", },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, pxa2xx_ac97_dt_ids);
|
|
|
|
#endif
|
|
|
|
static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
|
|
{
|
|
int ret;
|
|
struct ac97_controller *ctrl;
|
|
pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data;
|
|
void **codecs_pdata;
|
|
|
|
if (pdev->id != -1) {
|
|
dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
ret = pxa2xx_ac97_hw_probe(pdev);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "PXA2xx AC97 hw probe error (%d)\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
codecs_pdata = pdata ? pdata->codec_pdata : NULL;
|
|
ctrl = snd_ac97_controller_register(&pxa2xx_ac97_ops, &pdev->dev,
|
|
AC97_SLOTS_AVAILABLE_ALL,
|
|
codecs_pdata);
|
|
if (IS_ERR(ctrl))
|
|
return PTR_ERR(ctrl);
|
|
|
|
platform_set_drvdata(pdev, ctrl);
|
|
/* 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 devm_snd_soc_register_component(&pdev->dev, &pxa_ac97_component,
|
|
pxa_ac97_dai_driver, ARRAY_SIZE(pxa_ac97_dai_driver));
|
|
}
|
|
|
|
static int pxa2xx_ac97_dev_remove(struct platform_device *pdev)
|
|
{
|
|
struct ac97_controller *ctrl = platform_get_drvdata(pdev);
|
|
|
|
snd_ac97_controller_unregister(ctrl);
|
|
pxa2xx_ac97_hw_remove(pdev);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
static int pxa2xx_ac97_dev_suspend(struct device *dev)
|
|
{
|
|
return pxa2xx_ac97_hw_suspend();
|
|
}
|
|
|
|
static int pxa2xx_ac97_dev_resume(struct device *dev)
|
|
{
|
|
return pxa2xx_ac97_hw_resume();
|
|
}
|
|
|
|
static SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm_ops,
|
|
pxa2xx_ac97_dev_suspend, pxa2xx_ac97_dev_resume);
|
|
#endif
|
|
|
|
static struct platform_driver pxa2xx_ac97_driver = {
|
|
.probe = pxa2xx_ac97_dev_probe,
|
|
.remove = pxa2xx_ac97_dev_remove,
|
|
.driver = {
|
|
.name = "pxa2xx-ac97",
|
|
#ifdef CONFIG_PM_SLEEP
|
|
.pm = &pxa2xx_ac97_pm_ops,
|
|
#endif
|
|
.of_match_table = of_match_ptr(pxa2xx_ac97_dt_ids),
|
|
},
|
|
};
|
|
|
|
module_platform_driver(pxa2xx_ac97_driver);
|
|
|
|
MODULE_AUTHOR("Nicolas Pitre");
|
|
MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:pxa2xx-ac97");
|