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authorJack Humbert <jack.humb@gmail.com>2017-07-07 11:55:23 -0400
committerJack Humbert <jack.humb@gmail.com>2017-07-07 11:55:23 -0400
commit8655d4f4948b2deef7844503c8d690f23ac1a062 (patch)
treeb2c6effc9d6cd5b5b43933a1e53b8bf17e9e82cf /lib/lufa/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
parent1896c76a2928c96f9ab7947bec2ef8dd37623cff (diff)
parent60b30c036397cb5627fa374bb930794b225daa29 (diff)
Merge commit '60b30c036397cb5627fa374bb930794b225daa29' as 'lib/lufa'
Diffstat (limited to 'lib/lufa/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c')
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1 files changed, 321 insertions, 0 deletions
diff --git a/lib/lufa/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c b/lib/lufa/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
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+++ b/lib/lufa/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
@@ -0,0 +1,321 @@
+/*
+ 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)
+ Copyright 2010 Denver Gingerich (denver [at] ossguy [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 KeyboardMouse demo. This file contains the main tasks of the demo and
+ * is responsible for the initial application hardware configuration.
+ */
+
+#include "KeyboardMouse.h"
+
+/** Global structure to hold the current keyboard interface HID report, for transmission to the host */
+static USB_KeyboardReport_Data_t KeyboardReportData;
+
+/** Global structure to hold the current mouse interface HID report, for transmission to the host */
+static USB_MouseReport_Data_t MouseReportData;
+
+
+/** 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 (;;)
+ {
+ Keyboard_HID_Task();
+ Mouse_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 */
+ Joystick_Init();
+ 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 keyboard and mouse device endpoints.
+ */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+ bool ConfigSuccess = true;
+
+ /* Setup Keyboard HID Report Endpoints */
+ ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_IN_EPADDR, EP_TYPE_INTERRUPT, HID_EPSIZE, 1);
+ ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_OUT_EPADDR, EP_TYPE_INTERRUPT, HID_EPSIZE, 1);
+
+ /* Setup Mouse HID Report Endpoint */
+ ConfigSuccess &= Endpoint_ConfigureEndpoint(MOUSE_IN_EPADDR, EP_TYPE_INTERRUPT, HID_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)
+{
+ uint8_t* ReportData;
+ uint8_t ReportSize;
+
+ /* Handle HID Class specific requests */
+ switch (USB_ControlRequest.bRequest)
+ {
+ case HID_REQ_GetReport:
+ if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
+ {
+ Endpoint_ClearSETUP();
+
+ /* Determine if it is the mouse or the keyboard data that is being requested */
+ if (!(USB_ControlRequest.wIndex))
+ {
+ ReportData = (uint8_t*)&KeyboardReportData;
+ ReportSize = sizeof(KeyboardReportData);
+ }
+ else
+ {
+ ReportData = (uint8_t*)&MouseReportData;
+ ReportSize = sizeof(MouseReportData);
+ }
+
+ /* Write the report data to the control endpoint */
+ Endpoint_Write_Control_Stream_LE(ReportData, ReportSize);
+ Endpoint_ClearOUT();
+
+ /* Clear the report data afterwards */
+ memset(ReportData, 0, ReportSize);
+ }
+
+ break;
+ case HID_REQ_SetReport:
+ if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
+ {
+ Endpoint_ClearSETUP();
+
+ /* Wait until the LED report has been sent by the host */
+ while (!(Endpoint_IsOUTReceived()))
+ {
+ if (USB_DeviceState == DEVICE_STATE_Unattached)
+ return;
+ }
+
+ /* Read in the LED report from the host */
+ uint8_t LEDStatus = Endpoint_Read_8();
+
+ Endpoint_ClearOUT();
+ Endpoint_ClearStatusStage();
+
+ /* Process the incoming LED report */
+ Keyboard_ProcessLEDReport(LEDStatus);
+ }
+
+ break;
+ }
+}
+
+/** Processes a given Keyboard LED report from the host, and sets the board LEDs to match. Since the Keyboard
+ * LED report can be sent through either the control endpoint (via a HID SetReport request) or the HID OUT
+ * endpoint, the processing code is placed here to avoid duplicating it and potentially having different
+ * behavior depending on the method used to sent it.
+ */
+void Keyboard_ProcessLEDReport(const uint8_t LEDStatus)
+{
+ uint8_t LEDMask = LEDS_LED2;
+
+ if (LEDStatus & HID_KEYBOARD_LED_NUMLOCK)
+ LEDMask |= LEDS_LED1;
+
+ if (LEDStatus & HID_KEYBOARD_LED_CAPSLOCK)
+ LEDMask |= LEDS_LED3;
+
+ if (LEDStatus & HID_KEYBOARD_LED_SCROLLLOCK)
+ LEDMask |= LEDS_LED4;
+
+ /* Set the status LEDs to the current Keyboard LED status */
+ LEDs_SetAllLEDs(LEDMask);
+}
+
+/** Keyboard task. This generates the next keyboard HID report for the host, and transmits it via the
+ * keyboard IN endpoint when the host is ready for more data. Additionally, it processes host LED status
+ * reports sent to the device via the keyboard OUT reporting endpoint.
+ */
+void Keyboard_HID_Task(void)
+{
+ uint8_t JoyStatus_LCL = Joystick_GetStatus();
+
+ /* Device must be connected and configured for the task to run */
+ if (USB_DeviceState != DEVICE_STATE_Configured)
+ return;
+
+ /* Check if board button is not pressed, if so mouse mode enabled */
+ if (!(Buttons_GetStatus() & BUTTONS_BUTTON1))
+ {
+ /* Make sent key uppercase by indicating that the left shift key is pressed */
+ KeyboardReportData.Modifier = HID_KEYBOARD_MODIFIER_LEFTSHIFT;
+
+ if (JoyStatus_LCL & JOY_UP)
+ KeyboardReportData.KeyCode[0] = HID_KEYBOARD_SC_A;
+ else if (JoyStatus_LCL & JOY_DOWN)
+ KeyboardReportData.KeyCode[0] = HID_KEYBOARD_SC_B;
+
+ if (JoyStatus_LCL & JOY_LEFT)
+ KeyboardReportData.KeyCode[0] = HID_KEYBOARD_SC_C;
+ else if (JoyStatus_LCL & JOY_RIGHT)
+ KeyboardReportData.KeyCode[0] = HID_KEYBOARD_SC_D;
+
+ if (JoyStatus_LCL & JOY_PRESS)
+ KeyboardReportData.KeyCode[0] = HID_KEYBOARD_SC_E;
+ }
+
+ /* Select the Keyboard Report Endpoint */
+ Endpoint_SelectEndpoint(KEYBOARD_IN_EPADDR);
+
+ /* Check if Keyboard Endpoint Ready for Read/Write */
+ if (Endpoint_IsReadWriteAllowed())
+ {
+ /* Write Keyboard Report Data */
+ Endpoint_Write_Stream_LE(&KeyboardReportData, sizeof(KeyboardReportData), NULL);
+
+ /* Finalize the stream transfer to send the last packet */
+ Endpoint_ClearIN();
+
+ /* Clear the report data afterwards */
+ memset(&KeyboardReportData, 0, sizeof(KeyboardReportData));
+ }
+
+ /* Select the Keyboard LED Report Endpoint */
+ Endpoint_SelectEndpoint(KEYBOARD_OUT_EPADDR);
+
+ /* Check if Keyboard LED Endpoint Ready for Read/Write */
+ if (Endpoint_IsReadWriteAllowed())
+ {
+ /* Read in and process the LED report from the host */
+ Keyboard_ProcessLEDReport(Endpoint_Read_8());
+
+ /* Handshake the OUT Endpoint - clear endpoint and ready for next report */
+ Endpoint_ClearOUT();
+ }
+}
+
+/** Mouse task. This generates the next mouse HID report for the host, and transmits it via the
+ * mouse IN endpoint when the host is ready for more data.
+ */
+void Mouse_HID_Task(void)
+{
+ uint8_t JoyStatus_LCL = Joystick_GetStatus();
+
+ /* Device must be connected and configured for the task to run */
+ if (USB_DeviceState != DEVICE_STATE_Configured)
+ return;
+
+ /* Check if board button is pressed, if so mouse mode enabled */
+ if (Buttons_GetStatus() & BUTTONS_BUTTON1)
+ {
+ if (JoyStatus_LCL & JOY_UP)
+ MouseReportData.Y = 1;
+ else if (JoyStatus_LCL & JOY_DOWN)
+ MouseReportData.Y = -1;
+
+ if (JoyStatus_LCL & JOY_RIGHT)
+ MouseReportData.X = 1;
+ else if (JoyStatus_LCL & JOY_LEFT)
+ MouseReportData.X = -1;
+
+ if (JoyStatus_LCL & JOY_PRESS)
+ MouseReportData.Button |= (1 << 0);
+ }
+
+ /* Select the Mouse Report Endpoint */
+ Endpoint_SelectEndpoint(MOUSE_IN_EPADDR);
+
+ /* Check if Mouse Endpoint Ready for Read/Write */
+ if (Endpoint_IsReadWriteAllowed())
+ {
+ /* Write Mouse Report Data */
+ Endpoint_Write_Stream_LE(&MouseReportData, sizeof(MouseReportData), NULL);
+
+ /* Finalize the stream transfer to send the last packet */
+ Endpoint_ClearIN();
+
+ /* Clear the report data afterwards */
+ memset(&MouseReportData, 0, sizeof(MouseReportData));
+ }
+}
+