75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
#include "usb_composite_device.h"
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uint32_t UsbSystemKeyboardActionCounter;
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static usb_system_keyboard_report_t usbSystemKeyboardReports[2];
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usb_system_keyboard_report_t* ActiveUsbSystemKeyboardReport = usbSystemKeyboardReports;
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bool IsUsbSystemKeyboardReportSent = false;
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usb_system_keyboard_report_t* getInactiveUsbSystemKeyboardReport()
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{
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return ActiveUsbSystemKeyboardReport == usbSystemKeyboardReports ? usbSystemKeyboardReports+1 : usbSystemKeyboardReports;
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}
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void SwitchActiveUsbSystemKeyboardReport(void)
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{
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ActiveUsbSystemKeyboardReport = getInactiveUsbSystemKeyboardReport();
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}
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void ResetActiveUsbSystemKeyboardReport(void)
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{
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bzero(ActiveUsbSystemKeyboardReport, USB_SYSTEM_KEYBOARD_REPORT_LENGTH);
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}
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static usb_status_t UsbSystemKeyboardAction(void)
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{
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usb_status_t status = USB_DeviceHidSend(
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UsbCompositeDevice.systemKeyboardHandle, USB_SYSTEM_KEYBOARD_ENDPOINT_INDEX,
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(uint8_t*)getInactiveUsbSystemKeyboardReport(), USB_SYSTEM_KEYBOARD_REPORT_LENGTH);
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IsUsbSystemKeyboardReportSent = true;
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UsbSystemKeyboardActionCounter++;
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return status;
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}
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usb_status_t UsbSystemKeyboardCallback(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 UsbSystemKeyboardAction();
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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 UsbSystemKeyboardSetConfiguration(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 UsbSystemKeyboardAction();
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}
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return kStatus_USB_Error;
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}
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usb_status_t UsbSystemKeyboardSetInterface(class_handle_t handle, uint8_t interface, uint8_t alternateSetting)
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{
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if (USB_SYSTEM_KEYBOARD_INTERFACE_INDEX == interface) {
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return UsbSystemKeyboardAction();
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}
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return kStatus_USB_Error;
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}
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