114 lines
3.5 KiB
C
114 lines
3.5 KiB
C
/*****************************************************************
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> file name : sound.h
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>
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*****************************************************************/
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#ifndef _AUDIO_SOUND_H_
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#define _AUDIO_SOUND_H_
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#include "generic/ioctl.h"
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#include "sound/pcm.h"
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#include "os/os_api.h"
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#define SOUND_PCM_DMA_CFIFO_MODE 0 /*FIFO与DMA地址映射关系方式*/
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#define SOUND_PCM_DMA_PERIOD_MODE 1 /*DMA周期采样方式*/
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/*
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* Sound声道分布定义
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*/
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#define SOUND_CHMAP_MONO (1 << 0)
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#define SOUND_CHMAP_FL SOUND_CHMAP_MONO
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#define SOUND_CHMAP_FR (1 << 1)
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#define SOUND_CHMAP_RL (1 << 2)
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#define SOUND_CHMAP_RR (1 << 3)
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struct sound_volume;
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/*
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* Sound control IOCTL命令
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*/
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//#define SNDCTL_IOCTL_GET_GAIN_RANGE _IOR('A', 1, sizeof(struct sound_volume))
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#define SNDCTL_IOCTL_POWER_ON _IOW('A', 1, sizeof(int)) /* 控制器上电 */
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#define SNDCTL_IOCTL_POWER_OFF _IOW('A', 2, sizeof(int)) /* 控制器断电 */
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#define SNDCTL_IOCTL_SET_ANA_GAIN _IOW('A', 5, sizeof(struct sound_volume)) /* 设置模拟增益 */
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#define SNDCTL_IOCTL_GET_ANA_GAIN _IOR('A', 6, sizeof(struct sound_volume)) /* 获取模拟增益 */
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#define SNDCTL_IOCTL_SET_DIG_GAIN _IOW('A', 7, sizeof(struct sound_volume)) /* 设置数字增益 */
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#define SNDCTL_IOCTL_GET_DIG_GAIN _IOR('A', 8, sizeof(struct sound_volume)) /* 获取数字增益 */
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#define SNDCTL_IOCTL_SET_BIAS_TRIM _IOW('A', 9, sizeof(int)) /* TRIM */
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struct sound_volume {
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u32 chmap;
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s16 volume[4];
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};
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/*
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* PCM设备软硬件平台配置
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*/
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struct sound_pcm_platform_data {
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void *dma_addr; /*DMA 地址*/
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int dma_bytes; /*DMA 字节长度*/
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int fifo_bytes; /*FIFO 长度*/
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void *private_data; /*Soc私有数据*/
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};
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/*
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* 驱动控制器，由驱动实现
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*/
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struct sound_drv_controller {
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int (*power_on)(void *device); /*上电*/
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int (*power_off)(void *device); /*断电*/
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int (*ioctl)(void *device, int cmd, void *args); /*Control控制函数*/
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};
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/*
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* Platform驱动，由驱动实现
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*/
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struct sound_platform_driver {
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const char *name;
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const struct sound_drv_controller *controller;
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const struct sound_pcm_ops *ops;
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int (*create)(void **device, struct sound_pcm_platform_data *data); /*创建新的设备*/
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void (*free)(void *device); /*关闭设备*/
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};
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/*
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* Platform挂载的子设备
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*/
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struct sound_platform_subdevice {
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char name[8];
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//const char *name;
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struct sound_platform_driver *driver;
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void *private_data;
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void *parent;
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struct list_head entry;
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OS_MUTEX mutex;
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};
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/*
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* Platform管理总结构
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*/
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struct sound_platform {
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struct list_head list;
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};
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/*
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*
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*
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*/
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int sound_platform_init(void);
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int sound_platform_load(const char *name, struct sound_pcm_platform_data *data);
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int sound_platform_power_on(const char *name);
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int sound_platform_power_off(const char *name);
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int sound_platform_free(const char *name);
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int sound_platform_register(const struct sound_platform_driver *driver);
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#define SOUND_PLATFORM_DRIVER(name) \
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const struct sound_platform_driver name sec(.sound_platform_driver)
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/*
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typedef int (*sound_register_t)(void);
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#define __sound_platform_init(func) \
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const sound_register_t __##func sec(.sound_platform_register) = func
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*/
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#endif
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