cregit-Linux how code gets into the kernel

Release 4.8 sound/arm/pxa2xx-pcm.c

Directory: sound/arm
/*
 * 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/module.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>

#include <mach/dma.h>

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

#include "pxa2xx-pcm.h"


static int pxa2xx_pcm_prepare(struct snd_pcm_substream *substream) { struct pxa2xx_pcm_client *client = substream->private_data; __pxa2xx_pcm_prepare(substream); return client->prepare(substream); }

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takashi iwaitakashi iwai2781.82%266.67%
dmitry eremin-baryshkovdmitry eremin-baryshkov618.18%133.33%
Total33100.00%3100.00%


static int pxa2xx_pcm_open(struct snd_pcm_substream *substream) { struct pxa2xx_pcm_client *client = substream->private_data; struct snd_pcm_runtime *runtime = substream->runtime; struct pxa2xx_runtime_data *rtd; int ret; ret = __pxa2xx_pcm_open(substream); if (ret) goto out; rtd = runtime->private_data; rtd->params = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? client->playback_params : client->capture_params; ret = client->startup(substream); if (!ret) goto err2; return 0; err2: __pxa2xx_pcm_close(substream); out: return ret; }

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takashi iwaitakashi iwai9183.49%250.00%
dmitry eremin-baryshkovdmitry eremin-baryshkov1412.84%125.00%
daniel mackdaniel mack43.67%125.00%
Total109100.00%4100.00%


static int pxa2xx_pcm_close(struct snd_pcm_substream *substream) { struct pxa2xx_pcm_client *client = substream->private_data; client->shutdown(substream); return __pxa2xx_pcm_close(substream); }

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takashi iwaitakashi iwai3296.97%266.67%
dmitry eremin-baryshkovdmitry eremin-baryshkov13.03%133.33%
Total33100.00%3100.00%

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, };
int pxa2xx_pcm_new(struct snd_card *card, struct pxa2xx_pcm_client *client, struct snd_pcm **rpcm) { struct snd_pcm *pcm; int play = client->playback_params ? 1 : 0; int capt = client->capture_params ? 1 : 0; int ret; ret = snd_pcm_new(card, "PXA2xx-PCM", 0, play, capt, &pcm); if (ret) goto out; pcm->private_data = client; pcm->private_free = pxa2xx_pcm_free_dma_buffers; ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32)); if (ret) goto out; if (play) { int stream = SNDRV_PCM_STREAM_PLAYBACK; snd_pcm_set_ops(pcm, stream, &pxa2xx_pcm_ops); ret = pxa2xx_pcm_preallocate_dma_buffer(pcm, stream); if (ret) goto out; } if (capt) { int stream = SNDRV_PCM_STREAM_CAPTURE; snd_pcm_set_ops(pcm, stream, &pxa2xx_pcm_ops); ret = pxa2xx_pcm_preallocate_dma_buffer(pcm, stream); if (ret) goto out; } if (rpcm) *rpcm = pcm; ret = 0; out: return ret; }

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takashi iwaitakashi iwai18793.03%266.67%
russell kingrussell king146.97%133.33%
Total201100.00%3100.00%

EXPORT_SYMBOL(pxa2xx_pcm_new); MODULE_AUTHOR("Nicolas Pitre"); MODULE_DESCRIPTION("Intel PXA2xx PCM DMA module"); MODULE_LICENSE("GPL");

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takashi iwaitakashi iwai41687.95%225.00%
dmitry eremin-baryshkovdmitry eremin-baryshkov245.07%112.50%
russell kingrussell king173.59%112.50%
daniel mackdaniel mack102.11%225.00%
paul gortmakerpaul gortmaker30.63%112.50%
arnd bergmannarnd bergmann30.63%112.50%
Total473100.00%8100.00%
Directory: sound/arm
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