131 lines
4.0 KiB
C
131 lines
4.0 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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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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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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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++] = keyId + HID_KEYBOARD_SC_A;
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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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