114 lines
3.4 KiB
C
114 lines
3.4 KiB
C
#include "include/board/board.h"
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#include "usb_composite_device.h"
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#include "usb_interface_mouse.h"
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#include "fsl_i2c.h"
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#include "i2c.h"
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#include "main.h"
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static usb_device_endpoint_struct_t UsbMouseEndpoints[USB_MOUSE_ENDPOINT_COUNT] = {{
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USB_MOUSE_ENDPOINT_INDEX | (USB_IN << USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_SHIFT),
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USB_ENDPOINT_INTERRUPT,
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USB_MOUSE_INTERRUPT_IN_PACKET_SIZE,
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}};
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static usb_device_interface_struct_t UsbMouseInterface[] = {{
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USB_INTERFACE_ALTERNATE_SETTING_NONE,
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{USB_MOUSE_ENDPOINT_COUNT, UsbMouseEndpoints},
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NULL,
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}};
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static usb_device_interfaces_struct_t UsbMouseInterfaces[USB_MOUSE_INTERFACE_COUNT] = {{
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USB_CLASS_HID,
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USB_HID_SUBCLASS_BOOT,
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USB_HID_PROTOCOL_MOUSE,
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USB_MOUSE_INTERFACE_INDEX,
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UsbMouseInterface,
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sizeof(UsbMouseInterface) / sizeof(usb_device_interfaces_struct_t),
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}};
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static usb_device_interface_list_t UsbMouseInterfaceList[USB_DEVICE_CONFIGURATION_COUNT] = {{
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USB_MOUSE_INTERFACE_COUNT,
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UsbMouseInterfaces,
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}};
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usb_device_class_struct_t UsbMouseClass = {
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UsbMouseInterfaceList,
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kUSB_DeviceClassTypeHid,
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USB_DEVICE_CONFIGURATION_COUNT,
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};
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static usb_mouse_report_t UsbMouseReport;
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static uint8_t scrollCounter = 0;
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static volatile usb_status_t UsbMouseAction(void)
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{
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uint8_t i2cBuffer[I2C_DATA_LENGTH];
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i2c_master_transfer_t masterXfer;
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masterXfer.slaveAddress = LEFT_KEYBOARD_HALF_I2C_ADDRESS_7BIT;
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masterXfer.direction = kI2C_Read;
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masterXfer.subaddress = 0;
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masterXfer.subaddressSize = 0;
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masterXfer.data = i2cBuffer;
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masterXfer.dataSize = I2C_DATA_LENGTH;
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masterXfer.flags = kI2C_TransferDefaultFlag;
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I2C_MasterTransferBlocking(EXAMPLE_I2C_MASTER_BASEADDR, &masterXfer);
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UsbMouseReport.buttons = 0;
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UsbMouseReport.x = 0;//i2cBuffer[1] - i2cBuffer[0];
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UsbMouseReport.y = 0;
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UsbMouseReport.wheelX = 0;
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UsbMouseReport.wheelY = 0;
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if (!GPIO_ReadPinInput(BOARD_SW2_GPIO, BOARD_SW2_GPIO_PIN)) {
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if (!(scrollCounter % 10)) {
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UsbMouseReport.wheelX = -1;
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}
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}
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scrollCounter++;
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return USB_DeviceHidSend(UsbCompositeDevice.mouseHandle, USB_MOUSE_ENDPOINT_INDEX,
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(uint8_t*)&UsbMouseReport, USB_MOUSE_REPORT_LENGTH);
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}
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usb_status_t UsbMouseCallback(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 UsbMouseAction();
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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 UsbMouseSetConfiguration(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 UsbMouseAction();
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}
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return kStatus_USB_Error;
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}
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usb_status_t UsbMouseSetInterface(class_handle_t handle, uint8_t interface, uint8_t alternateSetting)
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{
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if (USB_MOUSE_INTERFACE_INDEX == interface) {
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return UsbMouseAction();
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}
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return kStatus_USB_Error;
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}
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