diff options
Diffstat (limited to 'drivers/misc/qcom/qdsp6v2/audio_utils.h')
| -rw-r--r-- | drivers/misc/qcom/qdsp6v2/audio_utils.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/misc/qcom/qdsp6v2/audio_utils.h b/drivers/misc/qcom/qdsp6v2/audio_utils.h new file mode 100644 index 000000000000..c757207b42e6 --- /dev/null +++ b/drivers/misc/qcom/qdsp6v2/audio_utils.h @@ -0,0 +1,113 @@ +/* Copyright (c) 2010-2015, The Linux Foundation. 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. + * +*/ +#include <linux/msm_audio.h> +#include <linux/compat.h> +#include "q6audio_common.h" + +#define FRAME_NUM (8) + +#define PCM_BUF_COUNT (2) + +#define AUD_EOS_SET 0x01 +#define TUNNEL_MODE 0x0000 +#define NON_TUNNEL_MODE 0x0001 + +#define NO_BUF_ALLOC 0x00 +#define BUF_ALLOC_IN 0x01 +#define BUF_ALLOC_OUT 0x02 +#define BUF_ALLOC_INOUT 0x03 +#define ALIGN_BUF_SIZE(size) ((size + 4095) & (~4095)) + +struct timestamp { + u32 lowpart; + u32 highpart; +} __packed; + +struct meta_in { + unsigned short offset; + struct timestamp ntimestamp; + unsigned int nflags; +} __packed; + +struct meta_out_dsp { + u32 offset_to_frame; + u32 frame_size; + u32 encoded_pcm_samples; + u32 msw_ts; + u32 lsw_ts; + u32 nflags; +} __packed; + +struct meta_out { + unsigned char num_of_frames; + struct meta_out_dsp meta_out_dsp[]; +} __packed; + +struct q6audio_in { + spinlock_t dsp_lock; + atomic_t in_bytes; + atomic_t in_samples; + + struct mutex lock; + struct mutex read_lock; + struct mutex write_lock; + wait_queue_head_t read_wait; + wait_queue_head_t write_wait; + + struct audio_client *ac; + struct msm_audio_stream_config str_cfg; + void *enc_cfg; + struct msm_audio_buf_cfg buf_cfg; + struct msm_audio_config pcm_cfg; + void *codec_cfg; + + /* number of buffers available to read/write */ + atomic_t in_count; + atomic_t out_count; + + /* first idx: num of frames per buf, second idx: offset to frame */ + uint32_t out_frame_info[FRAME_NUM][2]; + int eos_rsp; + int opened; + int enabled; + int stopped; + int event_abort; + int feedback; /* Flag indicates whether used + in Non Tunnel mode */ + int rflush; + int wflush; + int buf_alloc; + uint16_t min_frame_size; + uint16_t max_frames_per_buf; + bool reset_event; + long (*enc_ioctl)(struct file *, unsigned int, unsigned long); + long (*enc_compat_ioctl)(struct file *, unsigned int, unsigned long); +}; + +int audio_in_enable(struct q6audio_in *audio); +int audio_in_disable(struct q6audio_in *audio); +int audio_in_buf_alloc(struct q6audio_in *audio); +long audio_in_ioctl(struct file *file, + unsigned int cmd, unsigned long arg); +#ifdef CONFIG_COMPAT +long audio_in_compat_ioctl(struct file *file, + unsigned int cmd, unsigned long arg); +#else +#define audio_in_compat_ioctl NULL +#endif +ssize_t audio_in_read(struct file *file, char __user *buf, + size_t count, loff_t *pos); +ssize_t audio_in_write(struct file *file, const char __user *buf, + size_t count, loff_t *pos); +int audio_in_release(struct inode *inode, struct file *file); +int audio_in_set_config(struct file *file, struct msm_audio_config *cfg); |