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/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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.
*
*/
#ifndef AUDIO_LPA_H
#define AUDIO_LPA_H
#include <linux/earlysuspend.h>
#include <linux/wakelock.h>
#define ADRV_STATUS_OBUF_GIVEN 0x00000001
#define ADRV_STATUS_IBUF_GIVEN 0x00000002
#define ADRV_STATUS_FSYNC 0x00000004
#define ADRV_STATUS_PAUSE 0x00000008
struct buffer {
void *data;
unsigned size;
unsigned used; /* Input usage actual DSP produced PCM size */
unsigned addr;
};
#ifdef CONFIG_HAS_EARLYSUSPEND
struct audlpa_suspend_ctl {
struct early_suspend node;
struct audio *audio;
};
#endif
struct codec_operations {
long (*ioctl)(struct file *, unsigned int, unsigned long);
int (*set_params)(void *);
};
struct audio {
spinlock_t dsp_lock;
uint8_t out_needed; /* number of buffers the dsp is waiting for */
struct list_head out_queue; /* queue to retain output buffers */
struct mutex lock;
struct mutex write_lock;
wait_queue_head_t write_wait;
struct audio_client *ac;
/* configuration to use on next enable */
uint32_t out_sample_rate;
uint32_t out_channel_mode;
uint32_t out_bits; /* bits per sample (used by PCM decoder) */
int32_t phys; /* physical address of write buffer */
uint32_t drv_status;
int wflush; /* Write flush */
int opened;
int out_enabled;
int out_prefill;
int running;
int stopped; /* set when stopped, cleared on flush */
int buf_refresh;
int teos; /* valid only if tunnel mode & no data left for decoder */
#ifdef CONFIG_HAS_EARLYSUSPEND
struct audlpa_suspend_ctl suspend_ctl;
#endif
struct wake_lock wakelock;
#ifdef CONFIG_DEBUG_FS
struct dentry *dentry;
#endif
wait_queue_head_t wait;
struct list_head free_event_queue;
struct list_head event_queue;
wait_queue_head_t event_wait;
spinlock_t event_queue_lock;
struct mutex get_event_lock;
int event_abort;
uint32_t device_events;
struct list_head pmem_region_queue; /* protected by lock */
int eq_enable;
int eq_needs_commit;
uint32_t volume;
unsigned int minor_no;
struct codec_operations codec_ops;
uint32_t buffer_size;
uint32_t buffer_count;
uint32_t bytes_consumed;
};
#endif /* !AUDIO_LPA_H */