--- /dev/null
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2017.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaims all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+/** \file
+ *
+ * Main source file for the GenericHID demo. This file contains the main tasks of the demo and
+ * is responsible for the initial application hardware configuration.
+ */
+
+#include "GenericHID.h"
+
+
+/** Main program entry point. This routine configures the hardware required by the application, then
+ * enters a loop to run the application tasks in sequence.
+ */
+int main(void)
+{
+ SetupHardware();
+
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+ GlobalInterruptEnable();
+
+ for (;;)
+ {
+ HID_Task();
+ USB_USBTask();
+ }
+}
+
+/** Configures the board hardware and chip peripherals for the demo's functionality. */
+void SetupHardware(void)
+{
+#if (ARCH == ARCH_AVR8)
+ /* Disable watchdog if enabled by bootloader/fuses */
+ MCUSR &= ~(1 << WDRF);
+ wdt_disable();
+
+ /* Disable clock division */
+ clock_prescale_set(clock_div_1);
+#elif (ARCH == ARCH_XMEGA)
+ /* Start the PLL to multiply the 2MHz RC oscillator to 32MHz and switch the CPU core to run from it */
+ XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU);
+ XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL);
+
+ /* Start the 32MHz internal RC oscillator and start the DFLL to increase it to 48MHz using the USB SOF as a reference */
+ XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ);
+ XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB);
+
+ PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm;
+#endif
+
+ /* Hardware Initialization */
+ LEDs_Init();
+ USB_Init();
+}
+
+/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs and
+ * starts the library USB task to begin the enumeration and USB management process.
+ */
+void EVENT_USB_Device_Connect(void)
+{
+ /* Indicate USB enumerating */
+ LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+}
+
+/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via
+ * the status LEDs and stops the USB management task.
+ */
+void EVENT_USB_Device_Disconnect(void)
+{
+ /* Indicate USB not ready */
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+}
+
+/** Event handler for the USB_ConfigurationChanged event. This is fired when the host sets the current configuration
+ * of the USB device after enumeration, and configures the generic HID device endpoints.
+ */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+ bool ConfigSuccess = true;
+
+ /* Setup HID Report Endpoints */
+ ConfigSuccess &= Endpoint_ConfigureEndpoint(GENERIC_IN_EPADDR, EP_TYPE_INTERRUPT, GENERIC_EPSIZE, 1);
+ ConfigSuccess &= Endpoint_ConfigureEndpoint(GENERIC_OUT_EPADDR, EP_TYPE_INTERRUPT, GENERIC_EPSIZE, 1);
+
+ /* Indicate endpoint configuration success or failure */
+ LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
+}
+
+/** Event handler for the USB_ControlRequest event. This is used to catch and process control requests sent to
+ * the device from the USB host before passing along unhandled control requests to the library for processing
+ * internally.
+ */
+void EVENT_USB_Device_ControlRequest(void)
+{
+ /* Handle HID Class specific requests */
+ switch (USB_ControlRequest.bRequest)
+ {
+ case HID_REQ_GetReport:
+ if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
+ {
+ uint8_t GenericData[GENERIC_REPORT_SIZE];
+ CreateGenericHIDReport(GenericData);
+
+ Endpoint_ClearSETUP();
+
+ /* Write the report data to the control endpoint */
+ Endpoint_Write_Control_Stream_LE(&GenericData, sizeof(GenericData));
+ Endpoint_ClearOUT();
+ }
+
+ break;
+ case HID_REQ_SetReport:
+ if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
+ {
+ uint8_t GenericData[GENERIC_REPORT_SIZE];
+
+ Endpoint_ClearSETUP();
+
+ /* Read the report data from the control endpoint */
+ Endpoint_Read_Control_Stream_LE(&GenericData, sizeof(GenericData));
+ Endpoint_ClearIN();
+
+ ProcessGenericHIDReport(GenericData);
+ }
+
+ break;
+ }
+}
+
+/** Function to process the last received report from the host.
+ *
+ * \param[in] DataArray Pointer to a buffer where the last received report has been stored
+ */
+void ProcessGenericHIDReport(uint8_t* DataArray)
+{
+ /*
+ This is where you need to process reports sent from the host to the device. This
+ function is called each time the host has sent a new report. DataArray is an array
+ holding the report sent from the host.
+ */
+
+ uint8_t NewLEDMask = LEDS_NO_LEDS;
+
+ if (DataArray[0])
+ NewLEDMask |= LEDS_LED1;
+
+ if (DataArray[1])
+ NewLEDMask |= LEDS_LED2;
+
+ if (DataArray[2])
+ NewLEDMask |= LEDS_LED3;
+
+ if (DataArray[3])
+ NewLEDMask |= LEDS_LED4;
+
+ LEDs_SetAllLEDs(NewLEDMask);
+}
+
+/** Function to create the next report to send back to the host at the next reporting interval.
+ *
+ * \param[out] DataArray Pointer to a buffer where the next report data should be stored
+ */
+void CreateGenericHIDReport(uint8_t* DataArray)
+{
+ /*
+ This is where you need to create reports to be sent to the host from the device. This
+ function is called each time the host is ready to accept a new report. DataArray is
+ an array to hold the report to the host.
+ */
+
+ uint8_t CurrLEDMask = LEDs_GetLEDs();
+
+ DataArray[0] = ((CurrLEDMask & LEDS_LED1) ? 1 : 0);
+ DataArray[1] = ((CurrLEDMask & LEDS_LED2) ? 1 : 0);
+ DataArray[2] = ((CurrLEDMask & LEDS_LED3) ? 1 : 0);
+ DataArray[3] = ((CurrLEDMask & LEDS_LED4) ? 1 : 0);
+}
+
+void HID_Task(void)
+{
+ /* Device must be connected and configured for the task to run */
+ if (USB_DeviceState != DEVICE_STATE_Configured)
+ return;
+
+ Endpoint_SelectEndpoint(GENERIC_OUT_EPADDR);
+
+ /* Check to see if a packet has been sent from the host */
+ if (Endpoint_IsOUTReceived())
+ {
+ /* Check to see if the packet contains data */
+ if (Endpoint_IsReadWriteAllowed())
+ {
+ /* Create a temporary buffer to hold the read in report from the host */
+ uint8_t GenericData[GENERIC_REPORT_SIZE];
+
+ /* Read Generic Report Data */
+ Endpoint_Read_Stream_LE(&GenericData, sizeof(GenericData), NULL);
+
+ /* Process Generic Report Data */
+ ProcessGenericHIDReport(GenericData);
+ }
+
+ /* Finalize the stream transfer to send the last packet */
+ Endpoint_ClearOUT();
+ }
+
+ Endpoint_SelectEndpoint(GENERIC_IN_EPADDR);
+
+ /* Check to see if the host is ready to accept another packet */
+ if (Endpoint_IsINReady())
+ {
+ /* Create a temporary buffer to hold the report to send to the host */
+ uint8_t GenericData[GENERIC_REPORT_SIZE];
+
+ /* Create Generic Report Data */
+ CreateGenericHIDReport(GenericData);
+
+ /* Write Generic Report Data */
+ Endpoint_Write_Stream_LE(&GenericData, sizeof(GenericData), NULL);
+
+ /* Finalize the stream transfer to send the last packet */
+ Endpoint_ClearIN();
+ }
+}
+
projects / qmk_firmware.git / blobdiff