Release 4.11 sound/soc/pxa/pxa2xx-pcm.c
/*
* linux/sound/arm/pxa2xx-pcm.c -- ALSA PCM interface for the Intel PXA2xx chip
*
* Author: Nicolas Pitre
* Created: Nov 30, 2004
* Copyright: (C) 2004 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/dma-mapping.h>
#include <linux/module.h>
#include <linux/dmaengine.h>
#include <linux/of.h>
#include <sound/core.h>
#include <sound/soc.h>
#include <sound/pxa2xx-lib.h>
#include <sound/dmaengine_pcm.h>
#include "../../arm/pxa2xx-pcm.h"
static int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_dmaengine_dai_dma_data *dma;
dma = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
/* return if this is a bufferless transfer e.g.
* codec <--> BT codec or GSM modem -- lg FIXME */
if (!dma)
return 0;
return __pxa2xx_pcm_hw_params(substream, params);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Liam Girdwood | 36 | 62.07% | 1 | 20.00% |
| Daniel Mack | 10 | 17.24% | 2 | 40.00% |
| Andrew Johnson | 9 | 15.52% | 1 | 20.00% |
| Dmitry Baryshkov | 3 | 5.17% | 1 | 20.00% |
| Total | 58 | 100.00% | 5 | 100.00% |
static int pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream)
{
__pxa2xx_pcm_hw_free(substream);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Liam Girdwood | 14 | 73.68% | 1 | 50.00% |
| Dmitry Baryshkov | 5 | 26.32% | 1 | 50.00% |
| Total | 19 | 100.00% | 2 | 100.00% |
static struct snd_pcm_ops pxa2xx_pcm_ops = {
.open = __pxa2xx_pcm_open,
.close = __pxa2xx_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = pxa2xx_pcm_hw_params,
.hw_free = pxa2xx_pcm_hw_free,
.prepare = __pxa2xx_pcm_prepare,
.trigger = pxa2xx_pcm_trigger,
.pointer = pxa2xx_pcm_pointer,
.mmap = pxa2xx_pcm_mmap,
};
static int pxa2xx_soc_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_pcm *pcm = rtd->pcm;
int ret;
ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
if (ret)
return ret;
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = pxa2xx_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
goto out;
}
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ret = pxa2xx_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)
goto out;
}
out:
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Liam Girdwood | 88 | 74.58% | 3 | 42.86% |
| Daniel Mack | 12 | 10.17% | 1 | 14.29% |
| Russell King | 12 | 10.17% | 1 | 14.29% |
| Yang Hongyang | 4 | 3.39% | 1 | 14.29% |
| Dmitry Baryshkov | 2 | 1.69% | 1 | 14.29% |
| Total | 118 | 100.00% | 7 | 100.00% |
static struct snd_soc_platform_driver pxa2xx_soc_platform = {
.ops = &pxa2xx_pcm_ops,
.pcm_new = pxa2xx_soc_pcm_new,
.pcm_free = pxa2xx_pcm_free_dma_buffers,
};
static int pxa2xx_soc_platform_probe(struct platform_device *pdev)
{
return devm_snd_soc_register_platform(&pdev->dev, &pxa2xx_soc_platform);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Liam Girdwood | 22 | 95.65% | 2 | 66.67% |
| Axel Lin | 1 | 4.35% | 1 | 33.33% |
| Total | 23 | 100.00% | 3 | 100.00% |
#ifdef CONFIG_OF
static const struct of_device_id snd_soc_pxa_audio_match[] = {
{ .compatible = "mrvl,pxa-pcm-audio" },
{ }
};
MODULE_DEVICE_TABLE(of, snd_soc_pxa_audio_match);
#endif
static struct platform_driver pxa_pcm_driver = {
.driver = {
.name = "pxa-pcm-audio",
.of_match_table = of_match_ptr(snd_soc_pxa_audio_match),
},
.probe = pxa2xx_soc_platform_probe,
};
module_platform_driver(pxa_pcm_driver);
MODULE_AUTHOR("Nicolas Pitre");
MODULE_DESCRIPTION("Intel PXA2xx PCM DMA module");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pxa-pcm-audio");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Liam Girdwood | 284 | 69.95% | 3 | 15.79% |
| Daniel Mack | 60 | 14.78% | 4 | 21.05% |
| Dmitry Baryshkov | 16 | 3.94% | 2 | 10.53% |
| Russell King | 12 | 2.96% | 1 | 5.26% |
| Andrew Johnson | 9 | 2.22% | 1 | 5.26% |
| Luis de Bethencourt | 7 | 1.72% | 1 | 5.26% |
| Andrea Adami | 5 | 1.23% | 1 | 5.26% |
| Yang Hongyang | 4 | 0.99% | 1 | 5.26% |
| Mark Brown | 4 | 0.99% | 2 | 10.53% |
| Paul Gortmaker | 3 | 0.74% | 1 | 5.26% |
| Axel Lin | 2 | 0.49% | 2 | 10.53% |
| Total | 406 | 100.00% | 19 | 100.00% |
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