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#define STANDARD_ENDPOINT_DESC_SIZE 0x09
/* endpoints enumeration */
#define ENDP0 ((uint8_t)0)
#define ENDP1 ((uint8_t)1)
#define ENDP2 ((uint8_t)2)
#define ENDP3 ((uint8_t)3)
#define ENDP4 ((uint8_t)4)
#define ENDP5 ((uint8_t)5)
#define ENDP6 ((uint8_t)6)
#define ENDP7 ((uint8_t)7)
enum RECIPIENT_TYPE
{
DEVICE_RECIPIENT, /* Recipient device */
INTERFACE_RECIPIENT, /* Recipient interface */
ENDPOINT_RECIPIENT, /* Recipient endpoint */
OTHER_RECIPIENT
};
enum DESCRIPTOR_TYPE
{
DEVICE_DESCRIPTOR = 1,
CONFIG_DESCRIPTOR,
STRING_DESCRIPTOR,
INTERFACE_DESCRIPTOR,
ENDPOINT_DESCRIPTOR
};
#define REQUEST_DIR 0x80 /* Mask to get request dir */
#define REQUEST_TYPE 0x60 /* Mask to get request type */
#define STANDARD_REQUEST 0x00 /* Standard request */
#define CLASS_REQUEST 0x20 /* Class request */
#define VENDOR_REQUEST 0x40 /* Vendor request */
#define RECIPIENT 0x1F /* Mask to get recipient */
#define USB_SETUP_SET(req) ((req & REQUEST_DIR) == 0)
#define USB_SETUP_GET(req) ((req & REQUEST_DIR) != 0)
enum
{
USB_UNSUPPORT = 0,
USB_SUCCESS = 1,
};
struct req_args {
uint16_t value;
uint16_t index;
uint16_t len;
};
void usb_cb_device_reset (void);
int usb_cb_setup (uint8_t req, uint8_t req_no, struct req_args *arg);
int usb_cb_interface (uint8_t cmd, struct req_args *arg);
int usb_cb_get_descriptor (uint8_t rcp, uint8_t desc_type, uint8_t desc_index,
struct req_args *arg);
int usb_cb_handle_event (uint8_t event_type, uint16_t value);
void usb_cb_ctrl_write_finish (uint8_t req, uint8_t req_no,
struct req_args *arg);
void usb_cb_tx_done (uint8_t ep_num);
void usb_cb_rx_ready (uint8_t ep_num);
enum {
USB_EVENT_ADDRESS,
USB_EVENT_CONFIG,
USB_EVENT_SUSPEND,
USB_EVENT_WAKEUP,
USB_EVENT_STALL,
};
enum {
USB_SET_INTERFACE,
USB_GET_INTERFACE,
USB_QUERY_INTERFACE,
};
enum DEVICE_STATE
{
UNCONNECTED,
ATTACHED,
POWERED,
SUSPENDED,
ADDRESSED,
CONFIGURED
};
void usb_lld_init (uint8_t feature);
int usb_lld_reply_request (const void *buf, size_t buflen,
struct req_args *arg);
void usb_lld_set_data_to_recv (void *p, size_t len);
void usb_lld_tx_enable (uint8_t ep_num, const void *buf, size_t len);
int usb_lld_tx_result (int ep_num);
void usb_lld_rx_enable (int ep_num, void *buf, size_t len);
int usb_lld_rx_data_len (int ep_num);
void usb_lld_stall (int ep_num);
void usb_lld_reset (uint8_t feature);
void usb_lld_setup_endpoint (int n, int rx_en, int tx_en);
void usb_lld_set_configuration (uint8_t config);
uint8_t usb_lld_current_configuration (void);
void usb_lld_prepare_shutdown (void);
void usb_lld_shutdown (void);
void usb_interrupt_handler (void);
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