The UDD driver provides a low-level abstraction of the device controller hardware.
Most events coming from the hardware such as interrupts, which may cause the UDD to call into the UDC and UDI.
Data Structures | |
struct | udd_ctrl_request_t |
Global variable to give and record information of the setup request management. More... | |
Macros | |
#define | Udd_setup_is_in() (USB_REQ_DIR_IN == (udd_g_ctrlreq.req.bmRequestType & USB_REQ_DIR_MASK)) |
Return true if the setup request udd_g_ctrlreq indicates IN data transfer. More... | |
#define | Udd_setup_is_out() (USB_REQ_DIR_OUT == (udd_g_ctrlreq.req.bmRequestType & USB_REQ_DIR_MASK)) |
Return true if the setup request udd_g_ctrlreq indicates OUT data transfer. More... | |
#define | Udd_setup_recipient() (udd_g_ctrlreq.req.bmRequestType & USB_REQ_RECIP_MASK) |
Return the recipient of the SETUP request udd_g_ctrlreq. More... | |
#define | Udd_setup_type() (udd_g_ctrlreq.req.bmRequestType & USB_REQ_TYPE_MASK) |
Return the type of the SETUP request udd_g_ctrlreq. More... | |
Typedefs | |
typedef void(* | udd_callback_halt_cleared_t )(void) |
End of halt callback function type. More... | |
typedef void(* | udd_callback_trans_t )(udd_ep_status_t status, iram_size_t nb_transfered, udd_ep_id_t ep) |
End of transfer callback function type. More... | |
typedef uint8_t | udd_ep_id_t |
Endpoint identifier. More... | |
Enumerations | |
enum | udd_ep_status_t { UDD_EP_TRANSFER_OK = 0, UDD_EP_TRANSFER_ABORT = 1 } |
Endpoint transfer status Returned in parameters of callback register via udd_ep_run routine. More... | |
Functions | |
void | udd_attach (void) |
Attach device to the bus when possible. More... | |
void | udd_detach (void) |
Detaches the device from the bus. More... | |
void | udd_disable (void) |
Disables the USB Device mode. More... | |
void | udd_enable (void) |
Enables the USB Device mode. More... | |
uint16_t | udd_get_frame_number (void) |
Returns the current start of frame number. More... | |
uint16_t | udd_get_micro_frame_number (void) |
Returns the current micro start of frame number. More... | |
uint8_t | udd_getaddress (void) |
Returns the USB address of device. More... | |
bool | udd_include_vbus_monitoring (void) |
Authorizes the VBUS event. More... | |
bool | udd_is_high_speed (void) |
Test whether the USB Device Controller is running at high speed or not. More... | |
void | udd_send_remotewakeup (void) |
The USB driver sends a resume signal called Upstream Resume. More... | |
void | udd_set_address (uint8_t address) |
Changes the USB address of device. More... | |
void | udd_set_setup_payload (uint8_t *payload, uint16_t payload_size) |
Load setup payload. More... | |
Variables | |
udd_ctrl_request_t | udd_g_ctrlreq |
Global variable to give and record information of the set up request management. More... | |
High speed test mode management | |
The following functions allow the device to jump to a specific test mode required in high speed mode. | |
void | udd_test_mode_j (void) |
void | udd_test_mode_k (void) |
void | udd_test_mode_se0_nak (void) |
void | udd_test_mode_packet (void) |
UDC callbacks to provide for UDD | |
bool | udc_process_setup (void) |
Decodes and manages a setup request. More... | |
void | udc_reset (void) |
Reset the UDC. More... | |
void | udc_sof_notify (void) |
To signal that a SOF is occurred. More... | |
#define Udd_setup_is_in | ( | ) | (USB_REQ_DIR_IN == (udd_g_ctrlreq.req.bmRequestType & USB_REQ_DIR_MASK)) |
Return true if the setup request udd_g_ctrlreq indicates IN data transfer.
Referenced by _usb_ep0_on_setup(), udc_process_setup(), udc_reqstd(), udi_cdc_comm_setup(), udi_hid_setup(), udi_msc_setup(), udi_phdc_setup(), and udi_vendor_setup().
#define Udd_setup_is_out | ( | ) | (USB_REQ_DIR_OUT == (udd_g_ctrlreq.req.bmRequestType & USB_REQ_DIR_MASK)) |
Return true if the setup request udd_g_ctrlreq indicates OUT data transfer.
Referenced by udi_cdc_comm_setup(), udi_hid_setup(), udi_msc_setup(), udi_phdc_setup(), and udi_vendor_setup().
#define Udd_setup_recipient | ( | ) | (udd_g_ctrlreq.req.bmRequestType & USB_REQ_RECIP_MASK) |
Return the recipient of the SETUP request udd_g_ctrlreq.
Referenced by udc_process_setup(), and udc_reqstd().
#define Udd_setup_type | ( | ) | (udd_g_ctrlreq.req.bmRequestType & USB_REQ_TYPE_MASK) |
Return the type of the SETUP request udd_g_ctrlreq.
Referenced by udc_process_setup(), udi_cdc_comm_setup(), udi_hid_setup(), udi_msc_setup(), udi_phdc_setup(), and udi_vendor_setup().
typedef void(* udd_callback_halt_cleared_t)(void) |
End of halt callback function type.
Registered by routine udd_ep_wait_stall_clear() Callback called when endpoint stall is cleared.
typedef void(* udd_callback_trans_t)(udd_ep_status_t status, iram_size_t nb_transfered, udd_ep_id_t ep) |
End of transfer callback function type.
Registered by routine udd_ep_run() Callback called by USB interrupt after data transfer or abort (reset,...).
status | UDD_EP_TRANSFER_OK, if transfer is complete |
status | UDD_EP_TRANSFER_ABORT, if transfer is aborted |
n | number of data transfered |
typedef uint8_t udd_ep_id_t |
Endpoint identifier.
enum udd_ep_status_t |
bool udc_process_setup | ( | void | ) |
Decodes and manages a setup request.
The driver call it when a SETUP packet is received. The udd_g_ctrlreq
contains the data of SETUP packet. If this callback accepts the setup request then it must return 1
and eventually update udd_g_ctrlreq
to send or receive data.
1
if the request is accepted, otherwise 0
.Decodes and manages a setup request.
This function parses a USB SETUP request and submits an appropriate response back to the host or, in the case of SETUP OUT requests with data, sets up a buffer for receiving the data payload.
The main standard requests defined by the USB 2.0 standard are handled internally. The interface requests are sent to UDI, and the specific request sent to a specific application callback.
References udd_ctrl_request_t::callback, NULL, udd_ctrl_request_t::over_under_run, udd_ctrl_request_t::payload_size, udd_ctrl_request_t::req, udc_req_ep(), udc_req_iface(), udc_reqstd(), udd_g_ctrlreq, Udd_setup_is_in, Udd_setup_recipient, Udd_setup_type, USB_REQ_RECIP_ENDPOINT, USB_REQ_RECIP_INTERFACE, USB_REQ_TYPE_STANDARD, and usb_setup_req_t::wLength.
Referenced by _usb_ep0_on_setup().
void udc_reset | ( | void | ) |
Reset the UDC.
The UDC must reset all configuration.
Reset the UDC.
References usb_conf_desc_t::bNumInterfaces, CPU_TO_LE16, udc_config_speed_t::desc, udc_device_status, udc_iface_disable(), udc_num_configuration, udc_ptr_conf, UDC_REMOTEWAKEUP_DISABLE, USB_DEV_STATUS_BUS_POWERED, USB_DEV_STATUS_REMOTEWAKEUP, and USB_DEV_STATUS_SELF_POWERED.
Referenced by _usb_on_bus_reset(), udc_req_std_dev_set_configuration(), udc_req_std_dev_set_feature(), and udc_stop().
void udc_sof_notify | ( | void | ) |
To signal that a SOF is occurred.
The UDC must send the signal to all UDIs enabled
References usb_conf_desc_t::bNumInterfaces, udc_config_speed_t::desc, NULL, udi_api_t::sof_notify, udc_num_configuration, udc_ptr_conf, and udc_config_speed_t::udi_apis.
Referenced by _usb_on_sof_notify().
void udd_attach | ( | void | ) |
Attach device to the bus when possible.
References _usb_device_lpm_suspend(), _usb_on_bus_reset(), _usb_on_sof_notify(), _usb_on_suspend(), _usb_on_wakeup(), udd_sleep_mode(), UDD_STATE_IDLE, usb_device, usb_device_attach(), USB_DEVICE_CALLBACK_LPMSUSP, USB_DEVICE_CALLBACK_RESET, USB_DEVICE_CALLBACK_SOF, USB_DEVICE_CALLBACK_SUSPEND, USB_DEVICE_CALLBACK_WAKEUP, usb_device_enable_callback(), and usb_device_register_callback().
Referenced by _uhd_vbus_handler(), udc_attach(), and udd_enable().
void udd_detach | ( | void | ) |
Detaches the device from the bus.
The driver must remove pull-up on USB line D- or D+.
References udd_sleep_mode(), UDD_STATE_SUSPEND, usb_device, and usb_device_detach().
Referenced by _uhd_vbus_handler(), udc_detach(), and udd_disable().
void udd_disable | ( | void | ) |
Disables the USB Device mode.
References cpu_irq_restore(), cpu_irq_save(), udd_detach(), udd_sleep_mode(), UDD_STATE_OFF, and usb_dual_disable().
Referenced by udc_stop().
void udd_enable | ( | void | ) |
Enables the USB Device mode.
References _uhd_vbus_handler(), _usb_vbus_config(), cpu_irq_restore(), cpu_irq_save(), is_usb_vbus_high, usb_config::source_generator, udd_attach(), UDD_CLOCK_GEN, udd_sleep_mode(), UDD_STATE_SUSPEND, udd_wait_clock_ready(), usb_device, usb_dual_enable(), usb_enable(), usb_get_config_defaults(), and usb_init().
Referenced by udc_start().
uint16_t udd_get_frame_number | ( | void | ) |
Returns the current start of frame number.
References usb_device, and usb_device_get_frame_number().
Referenced by main_sof_action(), and udi_cdc_tx_send().
uint16_t udd_get_micro_frame_number | ( | void | ) |
Returns the current micro start of frame number.
References usb_device, and usb_device_get_micro_frame_number().
Referenced by udi_cdc_tx_send().
uint8_t udd_getaddress | ( | void | ) |
Returns the USB address of device.
References usb_device, and usb_device_get_address().
Referenced by udc_req_std_dev_set_configuration().
bool udd_include_vbus_monitoring | ( | void | ) |
Authorizes the VBUS event.
Referenced by udc_include_vbus_monitoring().
bool udd_is_high_speed | ( | void | ) |
Test whether the USB Device Controller is running at high speed or not.
true
if the Device is running at high speed mode, otherwise false
. Referenced by main_vendor_iso_out_received(), udc_req_std_dev_get_descriptor(), udc_req_std_dev_set_configuration(), udc_req_std_dev_set_feature(), and udi_cdc_tx_send().
void udd_send_remotewakeup | ( | void | ) |
The USB driver sends a resume signal called Upstream Resume.
References udd_sleep_mode(), UDD_STATE_IDLE, udd_wait_clock_ready(), usb_device, usb_device_send_remote_wake_up(), and usb_get_state_machine_status().
Referenced by udc_remotewakeup().
void udd_set_address | ( | uint8_t | address | ) |
Changes the USB address of device.
address | New USB address |
References usb_device, and usb_device_set_address().
Referenced by udc_valid_address().
void udd_set_setup_payload | ( | uint8_t * | payload, |
uint16_t | payload_size | ||
) |
Load setup payload.
payload | Pointer on payload |
payload_size | Size of payload |
References udd_ctrl_request_t::payload, and udd_ctrl_request_t::payload_size.
Referenced by 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(), and udc_req_std_iface_get_setting().
void udd_test_mode_j | ( | void | ) |
Referenced by udc_req_std_dev_set_feature().
void udd_test_mode_k | ( | void | ) |
Referenced by udc_req_std_dev_set_feature().
void udd_test_mode_packet | ( | void | ) |
Referenced by udc_req_std_dev_set_feature().
void udd_test_mode_se0_nak | ( | void | ) |
Referenced by udc_req_std_dev_set_feature().
udd_ctrl_request_t udd_g_ctrlreq |
Global variable to give and record information of the set up request management.
Referenced by main_extra_string(), main_setup_in_received(), main_setup_out_received(), 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_iface_get_setting(), udc_req_std_iface_set_setting(), udc_reqstd(), udc_valid_address(), udi_cdc_comm_setup(), udi_cdc_setup_to_port(), udi_hid_generic_setfeature_valid(), udi_hid_generic_setreport(), udi_hid_kbd_setreport(), udi_hid_multi_touch_setupreport(), udi_hid_reqstdifaceget_descriptor(), udi_hid_setup(), udi_msc_setup(), udi_phdc_setup(), and udi_vendor_setup().