118 lines
5.2 KiB
C
118 lines
5.2 KiB
C
#include "fsl_common.h"
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#include "usb_api.h"
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#include "usb_composite_device.h"
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#include "usb_descriptor_hid.h"
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#include "usb_descriptor_strings.h"
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static usb_status_t UsbDeviceCallback(usb_device_handle handle, uint32_t event, void *param);
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usb_composite_device_t UsbCompositeDevice;
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usb_device_class_config_struct_t UsbDeviceCompositeClassConfig[USB_COMPOSITE_INTERFACE_COUNT] = {
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{UsbGenericHidCallback, (class_handle_t)NULL, &UsbGenericHidClass},
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{UsbKeyboardCallback, (class_handle_t)NULL, &UsbKeyboardClass},
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{UsbMouseCallback, (class_handle_t)NULL, &UsbMouseClass},
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};
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usb_device_class_config_list_struct_t UsbDeviceCompositeConfigList = {
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UsbDeviceCompositeClassConfig,
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UsbDeviceCallback,
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USB_COMPOSITE_INTERFACE_COUNT
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};
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static usb_status_t UsbDeviceCallback(usb_device_handle 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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uint16_t *temp16 = (uint16_t*)param;
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uint8_t *temp8 = (uint8_t*)param;
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if (!param && event != kUSB_DeviceEventBusReset && event != kUSB_DeviceEventSetInterface) {
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return error;
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}
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switch (event) {
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case kUSB_DeviceEventBusReset:
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UsbCompositeDevice.attach = 0;
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error = kStatus_USB_Success;
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break;
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case kUSB_DeviceEventSetConfiguration:
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UsbCompositeDevice.attach = 1;
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UsbCompositeDevice.currentConfiguration = *temp8;
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UsbGenericHidSetConfiguration(UsbCompositeDevice.genericHidHandle, *temp8);
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UsbKeyboardSetConfiguration(UsbCompositeDevice.keyboardHandle, *temp8);
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UsbMouseSetConfiguration(UsbCompositeDevice.mouseHandle, *temp8);
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error = kStatus_USB_Success;
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break;
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case kUSB_DeviceEventGetConfiguration:
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*temp8 = UsbCompositeDevice.currentConfiguration;
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error = kStatus_USB_Success;
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break;
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case kUSB_DeviceEventSetInterface:
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if (UsbCompositeDevice.attach) {
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uint8_t interface = (uint8_t)((*temp16 & 0xFF00U) >> 8);
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uint8_t alternateSetting = (uint8_t)(*temp16 & 0x00FF);
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if (interface < USB_COMPOSITE_INTERFACE_COUNT) {
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UsbCompositeDevice.currentInterfaceAlternateSetting[interface] = alternateSetting;
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UsbGenericHidSetInterface(UsbCompositeDevice.genericHidHandle, interface, alternateSetting);
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UsbKeyboardSetInterface(UsbCompositeDevice.keyboardHandle, interface, alternateSetting);
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UsbMouseSetInterface(UsbCompositeDevice.mouseHandle, interface, alternateSetting);
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error = kStatus_USB_Success;
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}
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}
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break;
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case kUSB_DeviceEventGetInterface: ;
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uint8_t interface = (uint8_t)((*temp16 & 0xFF00) >> 8);
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if (interface < USB_COMPOSITE_INTERFACE_COUNT) {
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*temp16 = (*temp16 & 0xFF00) | UsbCompositeDevice.currentInterfaceAlternateSetting[interface];
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error = kStatus_USB_Success;
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} else {
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error = kStatus_USB_InvalidRequest;
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}
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break;
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case kUSB_DeviceEventGetDeviceDescriptor:
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error = USB_DeviceGetDeviceDescriptor(handle, (usb_device_get_device_descriptor_struct_t *)param);
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break;
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case kUSB_DeviceEventGetConfigurationDescriptor:
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error = USB_DeviceGetConfigurationDescriptor(handle, (usb_device_get_configuration_descriptor_struct_t *)param);
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break;
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case kUSB_DeviceEventGetStringDescriptor:
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error = USB_DeviceGetStringDescriptor(handle, (usb_device_get_string_descriptor_struct_t *)param);
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break;
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case kUSB_DeviceEventGetHidDescriptor:
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error = USB_DeviceGetHidDescriptor(handle, (usb_device_get_hid_descriptor_struct_t *)param);
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break;
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case kUSB_DeviceEventGetHidReportDescriptor:
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error = USB_DeviceGetHidReportDescriptor(handle, (usb_device_get_hid_report_descriptor_struct_t *)param);
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break;
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case kUSB_DeviceEventGetHidPhysicalDescriptor:
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error = USB_DeviceGetHidPhysicalDescriptor(handle, (usb_device_get_hid_physical_descriptor_struct_t *)param);
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break;
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}
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return error;
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}
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void USB0_IRQHandler()
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{
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USB_DeviceKhciIsrFunction(UsbCompositeDevice.deviceHandle);
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}
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void USB_DeviceApplicationInit()
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{
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uint8_t usbDeviceKhciIrq[] = USB_IRQS;
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uint8_t irqNumber = usbDeviceKhciIrq[CONTROLLER_ID - kUSB_ControllerKhci0];
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SystemCoreClockUpdate();
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CLOCK_EnableUsbfs0Clock(kCLOCK_UsbSrcIrc48M, 48000000);
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UsbCompositeDevice.attach = 0;
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USB_DeviceClassInit(CONTROLLER_ID, &UsbDeviceCompositeConfigList, &UsbCompositeDevice.deviceHandle);
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UsbCompositeDevice.genericHidHandle = UsbDeviceCompositeConfigList.config[USB_GENERIC_HID_INTERFACE_INDEX].classHandle;
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UsbCompositeDevice.keyboardHandle = UsbDeviceCompositeConfigList.config[USB_KEYBOARD_INTERFACE_INDEX].classHandle;
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UsbCompositeDevice.mouseHandle = UsbDeviceCompositeConfigList.config[USB_MOUSE_INTERFACE_INDEX].classHandle;
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NVIC_SetPriority((IRQn_Type)irqNumber, USB_DEVICE_INTERRUPT_PRIORITY);
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NVIC_EnableIRQ((IRQn_Type)irqNumber);
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USB_DeviceRun(UsbCompositeDevice.deviceHandle);
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}
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