228 lines
6.7 KiB
C
228 lines
6.7 KiB
C
#include "fsl_port.h"
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#include "usb_api.h"
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#include "usb_composite_device.h"
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#include "test_led.h"
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#include "key_matrix.h"
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#include "fsl_i2c.h"
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#include "i2c.h"
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#include "i2c_addresses.h"
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static usb_device_endpoint_struct_t UsbKeyboardEndpoints[USB_KEYBOARD_ENDPOINT_COUNT] = {{
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USB_KEYBOARD_ENDPOINT_INDEX | (USB_IN << USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_SHIFT),
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USB_ENDPOINT_INTERRUPT,
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USB_KEYBOARD_INTERRUPT_IN_PACKET_SIZE,
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}};
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static usb_device_interface_struct_t UsbKeyboardInterface[] = {{
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USB_INTERFACE_ALTERNATE_SETTING_NONE,
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{USB_KEYBOARD_ENDPOINT_COUNT, UsbKeyboardEndpoints},
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NULL,
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}};
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static usb_device_interfaces_struct_t UsbKeyboardInterfaces[USB_KEYBOARD_INTERFACE_COUNT] = {{
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USB_CLASS_HID,
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USB_HID_SUBCLASS_BOOT,
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USB_HID_PROTOCOL_KEYBOARD,
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USB_KEYBOARD_INTERFACE_INDEX,
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UsbKeyboardInterface,
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sizeof(UsbKeyboardInterface) / sizeof(usb_device_interfaces_struct_t),
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}};
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static usb_device_interface_list_t UsbKeyboardInterfaceList[USB_DEVICE_CONFIGURATION_COUNT] = {{
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USB_KEYBOARD_INTERFACE_COUNT,
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UsbKeyboardInterfaces,
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}};
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usb_device_class_struct_t UsbKeyboardClass = {
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UsbKeyboardInterfaceList,
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kUSB_DeviceClassTypeHid,
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USB_DEVICE_CONFIGURATION_COUNT,
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};
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static usb_keyboard_report_t UsbKeyboardReport;
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#define KEYBOARD_MATRIX_COLS_NUM 7
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#define KEYBOARD_MATRIX_ROWS_NUM 5
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key_matrix_t keyMatrix = {
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.colNum = KEYBOARD_MATRIX_COLS_NUM,
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.rowNum = KEYBOARD_MATRIX_ROWS_NUM,
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.cols = (key_matrix_pin_t[]){
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{PORTA, GPIOA, kCLOCK_PortA, 5},
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{PORTB, GPIOB, kCLOCK_PortB, 3},
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{PORTB, GPIOB, kCLOCK_PortB, 16},
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{PORTB, GPIOB, kCLOCK_PortB, 17},
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{PORTB, GPIOB, kCLOCK_PortB, 18},
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{PORTA, GPIOA, kCLOCK_PortA, 1},
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{PORTB, GPIOB, kCLOCK_PortB, 0}
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},
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.rows = (key_matrix_pin_t[]){
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{PORTA, GPIOA, kCLOCK_PortA, 12},
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{PORTA, GPIOA, kCLOCK_PortA, 13},
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{PORTC, GPIOC, kCLOCK_PortC, 0},
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{PORTB, GPIOB, kCLOCK_PortB, 19},
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{PORTD, GPIOD, kCLOCK_PortD, 6}
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}
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};
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#define KEY_STATE_COUNT (5*7)
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uint8_t leftKeyStates[KEY_STATE_COUNT] = {0};
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uint8_t scancodes[]={
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HID_KEYBOARD_SC_7_AND_AMPERSAND,
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HID_KEYBOARD_SC_8_AND_ASTERISK,
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HID_KEYBOARD_SC_9_AND_OPENING_PARENTHESIS,
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HID_KEYBOARD_SC_0_AND_CLOSING_PARENTHESIS,
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HID_KEYBOARD_SC_MINUS_AND_UNDERSCORE,
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HID_KEYBOARD_SC_EQUAL_AND_PLUS,
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HID_KEYBOARD_SC_BACKSPACE,
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HID_KEYBOARD_SC_U,
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HID_KEYBOARD_SC_I,
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HID_KEYBOARD_SC_O,
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HID_KEYBOARD_SC_P,
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HID_KEYBOARD_SC_OPENING_BRACKET_AND_OPENING_BRACE,
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HID_KEYBOARD_SC_CLOSING_BRACKET_AND_CLOSING_BRACE,
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HID_KEYBOARD_SC_BACKSLASH_AND_PIPE,
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HID_KEYBOARD_SC_Y,
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HID_KEYBOARD_SC_J,
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HID_KEYBOARD_SC_K,
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HID_KEYBOARD_SC_L,
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HID_KEYBOARD_SC_SEMICOLON_AND_COLON,
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HID_KEYBOARD_SC_APOSTROPHE_AND_QUOTE,
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HID_KEYBOARD_SC_ENTER,
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HID_KEYBOARD_SC_H,
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HID_KEYBOARD_SC_N,
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HID_KEYBOARD_SC_M,
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HID_KEYBOARD_SC_COMMA_AND_LESS_THAN_SIGN,
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HID_KEYBOARD_SC_DOT_AND_GREATER_THAN_SIGN,
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HID_KEYBOARD_SC_SLASH_AND_QUESTION_MARK,
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HID_KEYBOARD_SC_RIGHT_SHIFT,
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HID_KEYBOARD_SC_A, //??
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HID_KEYBOARD_SC_SPACE,
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HID_KEYBOARD_SC_A, //??
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HID_KEYBOARD_SC_SPACE, //Fn
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HID_KEYBOARD_SC_RIGHT_ALT,
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HID_KEYBOARD_SC_RIGHT_GUI,
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HID_KEYBOARD_SC_RIGHT_CONTROL,
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//Left half
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HID_KEYBOARD_SC_KEYPAD_1_AND_END,
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HID_KEYBOARD_SC_KEYPAD_2_AND_DOWN_ARROW,
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HID_KEYBOARD_SC_KEYPAD_3_AND_PAGE_DOWN,
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HID_KEYBOARD_SC_KEYPAD_4_AND_LEFT_ARROW,
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HID_KEYBOARD_SC_KEYPAD_5,
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HID_KEYBOARD_SC_KEYPAD_6_AND_RIGHT_ARROW,
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HID_KEYBOARD_SC_TAB,
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HID_KEYBOARD_SC_Q,
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HID_KEYBOARD_SC_W,
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HID_KEYBOARD_SC_E,
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HID_KEYBOARD_SC_R,
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HID_KEYBOARD_SC_A, //??
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HID_KEYBOARD_SC_T,
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HID_KEYBOARD_SC_CAPS_LOCK,
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HID_KEYBOARD_SC_A,
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HID_KEYBOARD_SC_S,
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HID_KEYBOARD_SC_D,
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HID_KEYBOARD_SC_F,
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HID_KEYBOARD_SC_A, //??
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HID_KEYBOARD_SC_G,
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HID_KEYBOARD_SC_LEFT_SHIFT,
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HID_KEYBOARD_SC_NON_US_HASHMARK_AND_TILDE, //no idea if this is the right one,
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HID_KEYBOARD_SC_Z,
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HID_KEYBOARD_SC_X,
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HID_KEYBOARD_SC_C,
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HID_KEYBOARD_SC_V,
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HID_KEYBOARD_SC_B,
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HID_KEYBOARD_SC_LEFT_CONTROL,
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HID_KEYBOARD_SC_LEFT_GUI,
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HID_KEYBOARD_SC_LEFT_ALT,
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HID_KEYBOARD_SC_SPACE, //Fn
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HID_KEYBOARD_SC_A, //??
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HID_KEYBOARD_SC_SPACE, //Mod
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};
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static uint8_t getKeycode(uint8_t keyId)
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{
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if (keyId<sizeof(scancodes))
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return scancodes[keyId];
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else
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return HID_KEYBOARD_SC_A + keyId - sizeof(scancodes);
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}
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static usb_status_t UsbKeyboardAction(void)
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{
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UsbKeyboardReport.modifiers = 0;
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UsbKeyboardReport.reserved = 0;
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KeyMatrix_Init(&keyMatrix);
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KeyMatrix_Scan(&keyMatrix);
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uint8_t scancodeIdx;
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for (uint8_t scancodeIdx=0; scancodeIdx<USB_KEYBOARD_MAX_KEYS; scancodeIdx++) {
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UsbKeyboardReport.scancodes[scancodeIdx] = 0;
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}
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uint8_t data[] = {0};
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I2cWrite(I2C_MAIN_BUS_BASEADDR, I2C_ADDRESS_LEFT_KEYBOARD_HALF, data, sizeof(data));
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I2cRead(I2C_MAIN_BUS_BASEADDR, I2C_ADDRESS_LEFT_KEYBOARD_HALF, leftKeyStates, KEY_STATE_COUNT);
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scancodeIdx = 0;
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for (uint8_t keyId=0; keyId<KEYBOARD_MATRIX_COLS_NUM*KEYBOARD_MATRIX_ROWS_NUM; keyId++) {
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if (keyMatrix.keyStates[keyId] && scancodeIdx<USB_KEYBOARD_MAX_KEYS) {
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UsbKeyboardReport.scancodes[scancodeIdx++] = getKeycode(keyId);
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}
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}
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for (uint8_t keyId=0; keyId<KEY_STATE_COUNT; keyId++) {
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if (leftKeyStates[keyId] && scancodeIdx<USB_KEYBOARD_MAX_KEYS) {
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UsbKeyboardReport.scancodes[scancodeIdx++] = getKeycode(34+keyId);
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}
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}
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return USB_DeviceHidSend(UsbCompositeDevice.keyboardHandle, USB_KEYBOARD_ENDPOINT_INDEX,
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(uint8_t*)&UsbKeyboardReport, USB_KEYBOARD_REPORT_LENGTH);
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}
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usb_status_t UsbKeyboardCallback(class_handle_t handle, uint32_t event, void *param)
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{
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usb_status_t error = kStatus_USB_Error;
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switch (event) {
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case kUSB_DeviceHidEventSendResponse:
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if (UsbCompositeDevice.attach) {
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return UsbKeyboardAction();
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}
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break;
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case kUSB_DeviceHidEventGetReport:
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case kUSB_DeviceHidEventSetReport:
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case kUSB_DeviceHidEventRequestReportBuffer:
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error = kStatus_USB_InvalidRequest;
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break;
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case kUSB_DeviceHidEventGetIdle:
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case kUSB_DeviceHidEventGetProtocol:
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case kUSB_DeviceHidEventSetIdle:
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case kUSB_DeviceHidEventSetProtocol:
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break;
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default:
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break;
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}
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return error;
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}
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usb_status_t UsbKeyboardSetConfiguration(class_handle_t handle, uint8_t configuration)
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{
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if (USB_COMPOSITE_CONFIGURATION_INDEX == configuration) {
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return UsbKeyboardAction();
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}
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return kStatus_USB_Error;
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}
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usb_status_t UsbKeyboardSetInterface(class_handle_t handle, uint8_t interface, uint8_t alternateSetting)
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{
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if (USB_KEYBOARD_INTERFACE_INDEX == interface) {
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return UsbKeyboardAction();
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}
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return kStatus_USB_Error;
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}
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