LXR linux/sound/soc/pxa/pxa2xx-pcm.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * linux/sound/arm/pxa2xx-pcm.c -- ALSA PCM interface for the Intel PXA2xx chip
   4 *
   5 * Author:      Nicolas Pitre
   6 * Created:     Nov 30, 2004
   7 * Copyright:   (C) 2004 MontaVista Software, Inc.
   8 */
   9
  10#include <linux/dma-mapping.h>
  11#include <linux/module.h>
  12#include <linux/dmaengine.h>
  13#include <linux/of.h>
  14
  15#include <sound/core.h>
  16#include <sound/soc.h>
  17#include <sound/pxa2xx-lib.h>
  18#include <sound/dmaengine_pcm.h>
  19
  20static const struct snd_soc_component_driver pxa2xx_soc_platform = {
  21        .pcm_construct  = pxa2xx_soc_pcm_new,
  22        .pcm_destruct   = pxa2xx_soc_pcm_free,
  23        .open           = pxa2xx_soc_pcm_open,
  24        .close          = pxa2xx_soc_pcm_close,
  25        .ioctl          = snd_soc_pcm_lib_ioctl,
  26        .hw_params      = pxa2xx_soc_pcm_hw_params,
  27        .hw_free        = pxa2xx_soc_pcm_hw_free,
  28        .prepare        = pxa2xx_soc_pcm_prepare,
  29        .trigger        = pxa2xx_soc_pcm_trigger,
  30        .pointer        = pxa2xx_soc_pcm_pointer,
  31        .mmap           = pxa2xx_soc_pcm_mmap,
  32};
  33
  34static int pxa2xx_soc_platform_probe(struct platform_device *pdev)
  35{
  36        return devm_snd_soc_register_component(&pdev->dev, &pxa2xx_soc_platform,
  37                                               NULL, 0);
  38}
  39
  40static struct platform_driver pxa_pcm_driver = {
  41        .driver = {
  42                .name = "pxa-pcm-audio",
  43        },
  44
  45        .probe = pxa2xx_soc_platform_probe,
  46};
  47
  48module_platform_driver(pxa_pcm_driver);
  49
  50MODULE_AUTHOR("Nicolas Pitre");
  51MODULE_DESCRIPTION("Intel PXA2xx PCM DMA module");
  52MODULE_LICENSE("GPL");
  53MODULE_ALIAS("platform:pxa-pcm-audio");
  54