USB Device driver Compliance with common driver UDD.
Copyright (c) 2012-2018 Microchip Technology Inc. and its subsidiaries.
#include "conf_usb.h"#include "sysclk.h"#include "udd.h"#include "usbc_otg.h"#include "usbc_device.h"#include <string.h>#include "sleepmgr.h"Macros | |
| #define | dbg_print(...) |
| #define | UDD_EP_USED(ep) (USB_DEVICE_MAX_EP >= ep) |
| #define | UDD_USB_INT_FUN USBC_Handler |
| #define | UDD_USB_INT_LEVEL 5 |
Functions | |
USB IO PADs handlers | |
| static void | uhd_vbus_handler (void) |
| USB VBus pin change handler. More... | |
Variables | |
| static volatile usb_desc_table_t | udd_g_ep_table [2 *(USB_DEVICE_MAX_EP+1)] |
| USB SRAM data about endpoint descriptor table The content of the USB SRAM can be : More... | |
Power management routine. | |
| #define | USBC_SLEEP_MODE_USB_SUSPEND SLEEPMGR_SLEEP_1 |
| Definition of sleep levels. More... | |
| #define | USBC_SLEEP_MODE_USB_IDLE SLEEPMGR_ACTIVE |
| static bool | udd_b_idle |
| State of USB line. More... | |
| static void | udd_sleep_mode (bool b_idle) |
| Authorize or not the CPU powerdown mode. More... | |
Control endpoint low level management routine. | |
This function performs control endpoint management. It handle the SETUP/DATA/HANDSHAKE phases of a control transaction. | |
| enum | udd_ctrl_ep_state_t { UDD_EPCTRL_SETUP = 0, UDD_EPCTRL_DATA_OUT = 1, UDD_EPCTRL_DATA_IN = 2, UDD_EPCTRL_HANDSHAKE_WAIT_IN_ZLP = 3, UDD_EPCTRL_HANDSHAKE_WAIT_OUT_ZLP = 4, UDD_EPCTRL_STALL_REQ = 5 } |
| Bit definitions about endpoint control state machine for udd_ep_control_state. More... | |
| COMPILER_WORD_ALIGNED udd_ctrl_request_t | udd_g_ctrlreq |
| Global variable to give and record information about setup request management. More... | |
| static udd_ctrl_ep_state_t | udd_ep_control_state |
| State of the endpoint control management. More... | |
| static uint16_t | udd_ctrl_prev_payload_nb_trans |
| Total number of data received/sent during data packet phase with previous payload buffers. More... | |
| static uint16_t | udd_ctrl_payload_nb_trans |
| Number of data received/sent to/from udd_g_ctrlreq.payload buffer. More... | |
Management of bulk/interrupt/isochronous endpoints | |
Buffer to store the data received on control endpoint (SETUP/OUT endpoint 0) Used to avoid a RAM buffer overflow in case of the payload buffer is smaller than control endpoint size The UDD manages the data transfer on endpoints:
| |
| udd_ep_job_t | |
| static udd_ep_job_t | udd_ep_job [USB_DEVICE_MAX_EP] |
| Array to register a job on bulk/interrupt/isochronous endpoint. More... | |
| UDC_BSS (4) | |
| Buffer to store the data received on bulk/interrupt endpoints. More... | |
| bool | udd_include_vbus_monitoring (void) |
| Authorizes the VBUS event. More... | |
| void | udd_enable (void) |
| Enables the USB Device mode. More... | |
| void | udd_disable (void) |
| Disables the USB Device mode. More... | |
| void | udd_attach (void) |
| Attach device to the bus when possible. More... | |
| void | udd_detach (void) |
| Detaches the device from the bus. More... | |
| bool | udd_is_high_speed (void) |
| Test whether the USB Device Controller is running at high speed or not. More... | |
| void | udd_set_address (uint8_t address) |
| Changes the USB address of device. More... | |
| uint8_t | udd_getaddress (void) |
| Returns the USB address of device. 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... | |
| void | udd_send_remotewakeup (void) |
| The USB driver sends a resume signal called Upstream Resume. More... | |
| void | udd_set_setup_payload (uint8_t *payload, uint16_t payload_size) |
| Load setup payload. More... | |
| bool | udd_ep_alloc (udd_ep_id_t ep, uint8_t bmAttributes, uint16_t MaxEndpointSize) |
| Configures and enables an endpoint. More... | |
| void | udd_ep_free (udd_ep_id_t ep) |
| Disables an endpoint. More... | |
| bool | udd_ep_is_halted (udd_ep_id_t ep) |
| Check if the endpoint ep is halted. More... | |
| bool | udd_ep_set_halt (udd_ep_id_t ep) |
| Set the halted state of the endpoint ep. More... | |
| bool | udd_ep_clear_halt (udd_ep_id_t ep) |
| Clear the halted state of the endpoint ep. More... | |
| bool | udd_ep_run (udd_ep_id_t ep, bool b_shortpacket, uint8_t *buf, iram_size_t buf_size, udd_callback_trans_t callback) |
| Allows to receive or send data on an endpoint. More... | |
| void | udd_ep_abort (udd_ep_id_t ep) |
| Aborts transfer on going on endpoint. More... | |
| bool | udd_ep_wait_stall_clear (udd_ep_id_t ep, udd_callback_halt_cleared_t callback) |
| Registers a callback to call when endpoint halt is cleared. More... | |
| static void | udd_reset_ep_ctrl (void) |
| static void | udd_ctrl_init (void) |
| static void | udd_ctrl_setup_received (void) |
| static void | udd_ctrl_in_sent (void) |
| static void | udd_ctrl_out_received (void) |
| static void | udd_ctrl_underflow (void) |
| static void | udd_ctrl_overflow (void) |
| static void | udd_ctrl_stall_data (void) |
| static void | udd_ctrl_send_zlp_in (void) |
| static void | udd_ctrl_send_zlp_out (void) |
| static void | udd_ctrl_endofrequest (void) |
| static bool | udd_ctrl_interrupt (void) |
| static void | udd_ep_trans_done (udd_ep_id_t ep) |
| static bool | udd_ep_interrupt (void) |
| #define dbg_print | ( | ... | ) |
Referenced by udd_ctrl_interrupt(), udd_ep_abort(), udd_ep_interrupt(), udd_ep_run(), udd_ep_trans_done(), and uhd_vbus_handler().
| #define UDD_EP_USED | ( | ep | ) | (USB_DEVICE_MAX_EP >= ep) |
| #define UDD_USB_INT_FUN USBC_Handler |
| #define UDD_USB_INT_LEVEL 5 |
Referenced by udd_enable().
1.8.5