usbh_uac.h

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/**************************************************************************/
#ifndef  _USBH_UAC_H_
#define  _USBH_UAC_H_

#include "NuMicro.h"

#include "usb.h"
#include "usbh_lib.h"
#include "../src_uac/uac.h"

#define CONFIG_UAC_MAX_DEV           3      
#define NUM_UTR                      2      
#define UAC_REQ_TIMEOUT              50     
#define UAC_SPEAKER                  1      
#define UAC_MICROPHONE               2      
/*
 * Audio Class-Specific Request Codes
 */
#define UAC_SET_CUR                  0x01   
#define UAC_GET_CUR                  0x81   
#define UAC_SET_MIN                  0x02   
#define UAC_GET_MIN                  0x82   
#define UAC_SET_MAX                  0x03   
#define UAC_GET_MAX                  0x83   
#define UAC_SET_RES                  0x04   
#define UAC_GET_RES                  0x84   
#define UAC_GET_STAT                 0xFF   
/*
 * Audio Class-Specific Channel selection
 */
#define UAC_CH_MASTER                0      
#define UAC_CH_LEFT_FRONT            1      
#define UAC_CH_RIGHT_FRONT           2      
#define UAC_CH_CENTER_FRONT          3      
#define UAC_CH_LOW_FREQ_EN           4      
#define UAC_CH_LEFT_SRN              5      
#define UAC_CH_RIGHT_SRN             6      
#define UAC_CH_LEFT_OF_CENTER        7      
#define UAC_CH_RIGHT_OF_CENTER       8      
#define UAC_CH_SURROUND              9      
#define UAC_CH_SIDE_LEFT             10     
#define UAC_CH_SIDE_RIGHT            11     
#define UAC_CH_TOP                   12     
 /* end of group USBH_EXPORTED_CONSTANTS */



/*----------------------------------------------------------------------------------------*/
/*  Audio Control Interface                                                               */
/*----------------------------------------------------------------------------------------*/
typedef struct ac_if_t
{
    IFACE_T        *iface;                  
    uint8_t        mic_id;                  
    uint8_t        mic_fuid;                
    uint8_t        speaker_id;              
    uint8_t        speaker_fuid;            
}  AC_IF_T;

/*----------------------------------------------------------------------------------------*/
/*  Audio Streaming Interface                                                             */
/*----------------------------------------------------------------------------------------*/
typedef struct as_if_t
{
    IFACE_T        *iface;                  
    EP_INFO_T      *ep;                     
    UTR_T          *utr[NUM_UTR];           
    AS_GEN_T       *as_gen;                 
    AC_IT_T        *it;                     
    AC_OT_T        *ot;                     
    AS_FT1_T       *ft;                     
    CS_EP_T        *cs_epd;                 
    uint8_t        flag_streaming;          
}  AS_IF_T;


/*----------------------------------------------------------------------------------------*/
/*  Audio Class device                                                                    */
/*----------------------------------------------------------------------------------------*/
typedef struct uac_dev_t
{
    UDEV_T         *udev;                   
    AC_IF_T        acif;                    
    AS_IF_T        asif_in;                 
    AS_IF_T        asif_out;                
    UAC_CB_FUNC    *func_au_in;             
    UAC_CB_FUNC    *func_au_out;            
    uint32_t       uid;                     
    UAC_STATE_E    state;
    struct uac_dev_t    *next;              
} UAC_DEV_T;                                
 /* end of group USBH_EXPORTED_STRUCTURES */



extern int uac_parse_control_interface(UAC_DEV_T *uac, IFACE_T *iface);
extern int uac_parse_streaming_interface(UAC_DEV_T *uac, IFACE_T *iface, uint8_t bAlternateSetting);
extern int usbh_uac_find_best_alt(IFACE_T *iface, uint8_t dir, uint8_t attr, int pkt_sz, uint8_t *bAlternateSetting);
extern int usbh_uac_find_max_alt(IFACE_T *iface, uint8_t dir, uint8_t attr, uint8_t *bAlternateSetting);



#ifdef __cplusplus
extern "C" {
#endif
 /* end of group USBH_Library */
 /* end of group LIBRARY */


#ifdef __cplusplus
}
#endif

#endif /* _USBH_UAC_H_ */


/*** (C) COPYRIGHT 2017 Nuvoton Technology Corp. ***/