M7350/kernel/sound/soc/msm/msm8x60-pcm.h

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2024-09-09 08:52:07 +00:00
/*
* Copyright (C) 2008 Google, Inc.
* Copyright (C) 2008 HTC Corporation
* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* See the GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can find it at http://www.fsf.org.
*/
#ifndef _MSM_PCM_H
#define _MSM_PCM_H
#include <sound/apr_audio.h>
#include <sound/q6asm.h>
#define MAX_PLAYBACK_SESSIONS 2
#define MAX_CAPTURE_SESSIONS 1
#define MAX_COPP 12
extern int copy_count;
struct buffer {
void *data;
unsigned size;
unsigned used;
unsigned addr;
};
struct buffer_rec {
void *data;
unsigned int size;
unsigned int read;
unsigned int addr;
};
struct audio_locks {
wait_queue_head_t read_wait;
wait_queue_head_t write_wait;
wait_queue_head_t eos_wait;
wait_queue_head_t enable_wait;
};
extern struct audio_locks the_locks;
struct msm_audio {
struct snd_pcm_substream *substream;
unsigned int pcm_size;
unsigned int pcm_count;
unsigned int pcm_irq_pos; /* IRQ position */
uint16_t source; /* Encoding source bit mask */
struct audio_client *audio_client;
uint16_t session_id;
int copp_id;
uint32_t samp_rate;
uint32_t channel_mode;
uint32_t dsp_cnt;
uint32_t device_events; /* device events interested in */
int abort; /* set when error, like sample rate mismatch */
int enabled;
int close_ack;
int cmd_ack;
atomic_t start;
atomic_t out_count;
atomic_t in_count;
atomic_t out_needed;
int periods;
int mmap_flag;
};
struct pcm_session {
unsigned short playback_session[MAX_PLAYBACK_SESSIONS][MAX_COPP];
unsigned short capture_session[MAX_CAPTURE_SESSIONS][MAX_COPP];
};
/* platform data */
extern struct snd_soc_platform_driver msm_soc_platform;
extern struct pcm_session session_route;
#endif /*_MSM_PCM_H*/