udd_ctrl_request_t Struct Reference

Global variable to give and record information of the setup request management.

This global variable allows to decode and response a setup request. It can be updated by udc_process_setup() from UDC or *setup() from UDIs.

#include <udd.h>

Data Fields
void(*	callback )(void)
	Callback called after reception of ZLP from setup request. More...
bool(*	over_under_run )(void)
	Callback called when the buffer given (.payload) is full or empty. More...
uint8_t *	payload
	Point to buffer to send or fill with data following SETUP packet This buffer must be word align for DATA IN phase (use prefix COMPILER_WORD_ALIGNED for buffer) More...
uint16_t	payload_size
	Size of buffer to send or fill, and content the number of byte transfered. More...
usb_setup_req_t	req
	Data received in USB SETUP packet Note: The swap of "req.wValues" from uin16_t to le16_t is done by UDD. More...

void(* udd_ctrl_request_t::callback)(void)

Callback called after reception of ZLP from setup request.

Referenced by udc_process_setup(), udc_req_std_dev_set_address(), udc_req_std_dev_set_feature(), and udi_hid_kbd_setreport().

bool(* udd_ctrl_request_t::over_under_run)(void)

Callback called when the buffer given (.payload) is full or empty.

This one return false to abort data transfer, or true with a new buffer in .payload.

Referenced by udc_process_setup().

uint8_t* udd_ctrl_request_t::payload

Point to buffer to send or fill with data following SETUP packet This buffer must be word align for DATA IN phase (use prefix COMPILER_WORD_ALIGNED for buffer)

Referenced by udc_req_std_dev_get_descriptor(), udi_hid_kbd_setreport(), udi_hid_reqstdifaceget_descriptor(), and udi_hid_setup().

uint16_t udd_ctrl_request_t::payload_size

Size of buffer to send or fill, and content the number of byte transfered.

Referenced by udc_process_setup(), udc_req_std_dev_get_descriptor(), udi_hid_kbd_setreport(), udi_hid_reqstdifaceget_descriptor(), and udi_hid_setup().

usb_setup_req_t udd_ctrl_request_t::req

Data received in USB SETUP packet Note: The swap of "req.wValues" from uin16_t to le16_t is done by UDD.

Referenced by udc_process_setup(), udc_req_ep(), udc_req_iface(), udc_req_std_dev_clear_feature(), udc_req_std_dev_get_configuration(), udc_req_std_dev_get_descriptor(), udc_req_std_dev_get_status(), udc_req_std_dev_get_str_desc(), udc_req_std_dev_set_address(), udc_req_std_dev_set_configuration(), udc_req_std_dev_set_feature(), udc_req_std_ep_clear_feature(), udc_req_std_ep_get_status(), udc_req_std_ep_set_feature(), udc_req_std_iface_get_setting(), udc_req_std_iface_set_setting(), udc_reqstd(), udc_valid_address(), udi_hid_kbd_setreport(), udi_hid_reqstdifaceget_descriptor(), and udi_hid_setup().