/*
* soc-compress.c -- ALSA SoC Compress
*
* Copyright (C) 2012 Intel Corp.
*
* Authors: Namarta Kohli <namartax.kohli@intel.com>
* Ramesh Babu K V <ramesh.babu@linux.intel.com>
* Vinod Koul <vinod.koul@linux.intel.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <sound/core.h>
#include <sound/compress_params.h>
#include <sound/compress_driver.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/soc-dpcm.h>
static int soc_compr_open(struct snd_compr_stream *cstream)
{
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
struct snd_soc_platform *platform = rtd->platform;
struct snd_soc_component *component;
struct snd_soc_rtdcom_list *rtdcom;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
int ret = 0, __ret;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
if (cpu_dai->driver->cops && cpu_dai->driver->cops->startup) {
ret = cpu_dai->driver->cops->startup(cstream, cpu_dai);
if (ret < 0) {
dev_err(cpu_dai->dev,
"Compress ASoC: can't open interface %s: %d\n",
cpu_dai->name, ret);
goto out;
}
}
if (platform && platform->driver->compr_ops && platform->driver->compr_ops->open) {
ret = platform->driver->compr_ops->open(cstream);
if (ret < 0) {
dev_err(platform->dev,
"Compress ASoC: can't open platform %s: %d\n",
platform->component.name, ret);
goto plat_err;
}
}
for_each_rtdcom(rtd, rtdcom) {
component = rtdcom->component;
/* ignore duplication for now */
if (platform && (component == &platform->component))
continue;
if (!component->driver->compr_ops ||
!component->driver->compr_ops->open)
continue;
__ret = component->driver->compr_ops->open(cstream);
if (__ret < 0) {
dev_err(component->dev,
"Compress ASoC: can't open platform %s: %d\n",
component->name, __ret);
ret = __ret;
}
}
if (ret < 0)
goto machine_err;
if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) {
ret = rtd->dai_link->compr_ops->startup(cstream);
if (ret < 0) {
dev_err(rtd->dev,