113 lines
3.5 KiB
C
113 lines
3.5 KiB
C
#include "main.h"
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#include "action.h"
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#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 "peripherals/test_led.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 UsbBasicKeyboardEndpoints[USB_BASIC_KEYBOARD_ENDPOINT_COUNT] = {{
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USB_BASIC_KEYBOARD_ENDPOINT_INDEX | (USB_IN << USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_SHIFT),
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USB_ENDPOINT_INTERRUPT,
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USB_BASIC_KEYBOARD_INTERRUPT_IN_PACKET_SIZE,
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}};
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static usb_device_interface_struct_t UsbBasicKeyboardInterface[] = {{
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USB_INTERFACE_ALTERNATE_SETTING_NONE,
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{USB_BASIC_KEYBOARD_ENDPOINT_COUNT, UsbBasicKeyboardEndpoints},
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NULL,
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}};
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static usb_device_interfaces_struct_t UsbBasicKeyboardInterfaces[USB_BASIC_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_BASIC_KEYBOARD_INTERFACE_INDEX,
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UsbBasicKeyboardInterface,
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sizeof(UsbBasicKeyboardInterface) / sizeof(usb_device_interfaces_struct_t),
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}};
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static usb_device_interface_list_t UsbBasicKeyboardInterfaceList[USB_DEVICE_CONFIGURATION_COUNT] = {{
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USB_BASIC_KEYBOARD_INTERFACE_COUNT,
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UsbBasicKeyboardInterfaces,
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}};
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usb_device_class_struct_t UsbBasicKeyboardClass = {
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UsbBasicKeyboardInterfaceList,
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kUSB_DeviceClassTypeHid,
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USB_DEVICE_CONFIGURATION_COUNT,
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};
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static usb_basic_keyboard_report_t usbBasicKeyboardReports[2];
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usb_basic_keyboard_report_t* ActiveUsbBasicKeyboardReport = usbBasicKeyboardReports;
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bool IsUsbBasicKeyboardReportSent = false;
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usb_basic_keyboard_report_t* getInactiveUsbBasicKeyboardReport()
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{
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return ActiveUsbBasicKeyboardReport == usbBasicKeyboardReports ? usbBasicKeyboardReports+1 : usbBasicKeyboardReports;
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}
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void SwitchActiveUsbBasicKeyboardReport()
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{
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ActiveUsbBasicKeyboardReport = getInactiveUsbBasicKeyboardReport();
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}
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void ResetActiveUsbBasicKeyboardReport()
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{
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bzero(ActiveUsbBasicKeyboardReport, USB_BASIC_KEYBOARD_REPORT_LENGTH);
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}
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static usb_status_t UsbBasicKeyboardAction(void)
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{
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usb_status_t status = USB_DeviceHidSend(
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UsbCompositeDevice.basicKeyboardHandle, USB_BASIC_KEYBOARD_ENDPOINT_INDEX,
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(uint8_t*)getInactiveUsbBasicKeyboardReport(), USB_BASIC_KEYBOARD_REPORT_LENGTH);
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IsUsbBasicKeyboardReportSent = true;
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return status;
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}
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usb_status_t UsbBasicKeyboardCallback(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 UsbBasicKeyboardAction();
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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 UsbBasicKeyboardSetConfiguration(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 UsbBasicKeyboardAction();
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}
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return kStatus_USB_Error;
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}
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usb_status_t UsbBasicKeyboardSetInterface(class_handle_t handle, uint8_t interface, uint8_t alternateSetting)
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{
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if (USB_BASIC_KEYBOARD_INTERFACE_INDEX == interface) {
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return UsbBasicKeyboardAction();
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}
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return kStatus_USB_Error;
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}
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