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Abstracted USB driver interface to to allow driver selection.

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This commit is contained in:
Gareth McMullin
2011-01-30 17:04:56 +13:00
parent c11cdaf2a7
commit aac65d8560
10 changed files with 97 additions and 20 deletions
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20
lib/usb/usb_private.h
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@@ -53,6 +53,8 @@ extern struct _usbd_device {
/* User callback function for some standard USB function hooks */
void (*user_callback_set_config)(u16 wValue);
struct _usbd_driver *driver;
} _usbd_device;
enum _usbd_transaction {
@@ -70,8 +72,20 @@ int _usbd_standard_request(struct usb_setup_data *req, u8 **buf, u16 *len);
void _usbd_reset(void);
/* Functions provided by the hardware abstraction. */
void _usbd_hw_init(void);
void _usbd_hw_set_address(u8 addr);
void _usbd_hw_endpoints_reset(void);
struct _usbd_driver {
void (*_init)(void);
void (*_set_address)(u8 addr);
void (*ep_setup)(u8 addr, u8 type, u16 max_size, void (*cb)(u8 ep));
void (*_ep_reset)(void);
void (*ep_stall_set)(u8 addr, u8 stall);
u8 (*ep_stall_get)(u8 addr);
u16 (*ep_write_packet)(u8 addr, const void *buf, u16 len);
u16 (*ep_read_packet)(u8 addr, void *buf, u16 len);
void (*poll)(void);
};
#define _usbd_hw_init() _usbd_device.driver->_init()
#define _usbd_hw_set_address(addr) _usbd_device.driver->_set_address(addr)
#define _usbd_hw_endpoints_reset() _usbd_device.driver->_ep_reset()
#endif