luckfox-pico-sdk/sysdrv/source/mcu/rt-thread/components/drivers/audio/audio_pipe.h
luckfox-eng29 8f34c2760d project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches.
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between
the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door
for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more
usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp:
Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for
compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem.
sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device
tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately.
sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick
boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades.
sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for
fastboot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
2024-10-14 09:47:04 +08:00

77 lines
1.8 KiB
C

/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
*/
#ifndef __AUDIO_PIPE_H__
#define __AUDIO_PIPE_H__
/**
* Pipe Device
*/
#include <rtthread.h>
#include <rtdevice.h>
#ifndef RT_PIPE_BUFSZ
#define PIPE_BUFSZ 512
#else
#define PIPE_BUFSZ RT_PIPE_BUFSZ
#endif
/* portal device */
struct rt_audio_portal_device
{
struct rt_device parent;
struct rt_device *write_dev;
struct rt_device *read_dev;
};
enum rt_audio_pipe_flag
{
/* both read and write won't block */
RT_PIPE_FLAG_NONBLOCK_RDWR = 0x00,
/* read would block */
RT_PIPE_FLAG_BLOCK_RD = 0x01,
/* write would block */
RT_PIPE_FLAG_BLOCK_WR = 0x02,
/* write to this pipe will discard some data when the pipe is full.
* When this flag is set, RT_PIPE_FLAG_BLOCK_WR will be ignored since write
* operation will always be success. */
RT_PIPE_FLAG_FORCE_WR = 0x04,
};
struct rt_audio_pipe
{
struct rt_device parent;
/* ring buffer in pipe device */
struct rt_ringbuffer ringbuffer;
rt_int32_t flag;
/* suspended list */
rt_list_t suspended_read_list;
rt_list_t suspended_write_list;
struct rt_audio_portal_device *write_portal;
struct rt_audio_portal_device *read_portal;
};
#define PIPE_CTRL_GET_SPACE 0x14 /**< get the remaining size of a pipe device */
rt_err_t rt_audio_pipe_init(struct rt_audio_pipe *pipe,
const char *name,
rt_int32_t flag,
rt_uint8_t *buf,
rt_size_t size);
rt_err_t rt_audio_pipe_detach(struct rt_audio_pipe *pipe);
#ifdef RT_USING_HEAP
rt_err_t rt_audio_pipe_create(const char *name, rt_int32_t flag, rt_size_t size);
void rt_audio_pipe_destroy(struct rt_audio_pipe *pipe);
#endif
#endif