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/*
* Purpose: USB abstraction structures and functions used by OSS
*
* OS dependent wrappers for various USB related kernel interfaces. Each
* operating system will have it's private udi.c file which implements
* the services defined here.
*/
/*
*
* This file is part of Open Sound System.
*
* Copyright (C) 4Front Technologies 1996-2008.
*
* This this source file is released under GPL v2 license (no other versions).
* See the COPYING file included in the main directory of this source
* distribution for the license terms and conditions.
*
*/
/* typedef struct udi_usb_devc udi_usb_devc; // Moved to os.h */
typedef struct
{
char *altsetting_labels;
int default_altsetting;
unsigned int altsetting_mask;
} ossusb_altsetting_def_t;
#define MAX_ALTSETTINGS 20
typedef struct udi_usb_devinfo
{
int vendor, product;
char *name;
const ossusb_altsetting_def_t altsettings[MAX_ALTSETTINGS];
}
udi_usb_devinfo;
typedef struct
{
void *(*attach) (udi_usb_devc * devc, oss_device_t * osdev);
void (*disconnect) (void *devc);
} udi_usb_driver;
extern int udi_attach_usbdriver (oss_device_t * osdev,
const udi_usb_devinfo * devlist,
udi_usb_driver * driver);
extern void udi_unload_usbdriver (oss_device_t * osdev);
extern int udi_usb_trace;
extern int udi_usbdev_get_class (udi_usb_devc * usbdev);
extern int udi_usbdev_get_subclass (udi_usb_devc * usbdev);
extern int udi_usbdev_get_vendor (udi_usb_devc * usbdev);
extern int udi_usbdev_get_product (udi_usb_devc * usbdev);
extern int udi_usbdev_get_inum (udi_usb_devc * usbdev);
extern unsigned char *udi_usbdev_get_endpoint (udi_usb_devc * usbdev,
int altsetting, int n,
int *len);
#define EP_IN 0
#define EP_OUT 1
extern char *udi_usbdev_get_name (udi_usb_devc * usbdev);
extern char *udi_usbdev_get_altsetting_labels (udi_usb_devc * usbdev, int if_num, int *default_alt, unsigned int *mask);
extern char *udi_usbdev_get_string (udi_usb_devc * usbdev, int ix);
extern char *udi_usbdev_get_devpath (udi_usb_devc * usbdev);
extern int udi_usbdev_get_num_altsettings (udi_usb_devc * usbdev);
extern int udi_usbdev_get_usb_version (udi_usb_devc * usbdev);
extern unsigned char *udi_usbdev_get_altsetting (udi_usb_devc * usbdev, int n,
int *size);
extern int udi_usbdev_set_interface (udi_usb_devc * usbdev, int inum,
int altset);
extern int udi_usb_snd_control_msg (udi_usb_devc * usbdev,
unsigned int endpoint, unsigned char rq,
unsigned char rqtype,
unsigned short value,
unsigned short index, void *buf, int len,
int timeout);
extern int udi_usb_rcv_control_msg (udi_usb_devc * usbdev,
unsigned int endpoint, unsigned char rq,
unsigned char rqtype,
unsigned short value,
unsigned short index, void *buf, int len,
int timeout);
typedef struct udi_usb_request udi_usb_request_t; /* Opaque type */
typedef struct _udi_endpoint_handle_t udi_endpoint_handle_t;
extern udi_endpoint_handle_t *udi_open_endpoint (udi_usb_devc * usbdev,
void *ep_descr);
extern void udi_close_endpoint (udi_endpoint_handle_t * eph);
extern int udi_endpoint_get_num (udi_endpoint_handle_t * eph);
#define UDI_USBXFER_ISO_WRITE 1
#define UDI_USBXFER_ISO_READ 2
#define UDI_USBXFER_BULK_READ 3
#define UDI_USBXFER_BULK_WRITE 4
#define UDI_USBXFER_INTR_READ 5
typedef void (*udi_usb_complete_func_t) (udi_usb_request_t * request,
void *arg);
extern udi_usb_request_t *udi_usb_alloc_request (udi_usb_devc * usbdev,
udi_endpoint_handle_t * eph,
int nframes, int xfer_type);
extern void udi_usb_free_request (udi_usb_request_t * request);
extern int udi_usb_submit_request (udi_usb_request_t * request,
udi_usb_complete_func_t callback,
void *callback_arg,
udi_endpoint_handle_t * eph, int xfer_type,
void *data, int data_len);
extern void udi_usb_cancel_request (udi_usb_request_t * request);
extern int udi_usb_request_actlen (udi_usb_request_t * request);
extern unsigned char *udi_usb_request_actdata (udi_usb_request_t * request);
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