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Diffstat (limited to 'lib/lufa/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c')
| -rw-r--r-- | lib/lufa/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c | 321 |
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 new file mode 100644 index 000000000..0f2719ce7 --- /dev/null +++ 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)); + } +} + |