diff options
author | Jack Humbert <jack.humb@gmail.com> | 2017-07-07 17:55:23 +0200 |
---|---|---|
committer | Jack Humbert <jack.humb@gmail.com> | 2017-07-07 17:55:23 +0200 |
commit | 60b30c036397cb5627fa374bb930794b225daa29 (patch) | |
tree | e156c2d6b27f01db6985f2cc560c9c345d48fdac /Demos/Device/ClassDriver/GenericHID/GenericHID.c | |
download | qmk_firmware-60b30c036397cb5627fa374bb930794b225daa29.tar.gz qmk_firmware-60b30c036397cb5627fa374bb930794b225daa29.tar.xz |
Squashed 'lib/lufa/' content from commit 385d40300
git-subtree-dir: lib/lufa
git-subtree-split: 385d4030035dbaf41591309dbde47653bd03841b
Diffstat (limited to 'Demos/Device/ClassDriver/GenericHID/GenericHID.c')
-rw-r--r-- | Demos/Device/ClassDriver/GenericHID/GenericHID.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/Demos/Device/ClassDriver/GenericHID/GenericHID.c b/Demos/Device/ClassDriver/GenericHID/GenericHID.c new file mode 100644 index 000000000..d7f3e3c23 --- /dev/null +++ b/Demos/Device/ClassDriver/GenericHID/GenericHID.c @@ -0,0 +1,202 @@ +/* + 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" + +/** Buffer to hold the previously generated HID report, for comparison purposes inside the HID class driver. */ +static uint8_t PrevHIDReportBuffer[GENERIC_REPORT_SIZE]; + +/** LUFA HID Class driver interface configuration and state information. This structure is + * passed to all HID Class driver functions, so that multiple instances of the same class + * within a device can be differentiated from one another. + */ +USB_ClassInfo_HID_Device_t Generic_HID_Interface = + { + .Config = + { + .InterfaceNumber = INTERFACE_ID_GenericHID, + .ReportINEndpoint = + { + .Address = GENERIC_IN_EPADDR, + .Size = GENERIC_EPSIZE, + .Banks = 1, + }, + .PrevReportINBuffer = PrevHIDReportBuffer, + .PrevReportINBufferSize = sizeof(PrevHIDReportBuffer), + }, + }; + + +/** Main program entry point. This routine contains the overall program flow, including initial + * setup of all components and the main program loop. + */ +int main(void) +{ + SetupHardware(); + + LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); + GlobalInterruptEnable(); + + for (;;) + { + HID_Device_USBTask(&Generic_HID_Interface); + 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 library USB Connection event. */ +void EVENT_USB_Device_Connect(void) +{ + LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); +} + +/** Event handler for the library USB Disconnection event. */ +void EVENT_USB_Device_Disconnect(void) +{ + LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); +} + +/** Event handler for the library USB Configuration Changed event. */ +void EVENT_USB_Device_ConfigurationChanged(void) +{ + bool ConfigSuccess = true; + + ConfigSuccess &= HID_Device_ConfigureEndpoints(&Generic_HID_Interface); + + USB_Device_EnableSOFEvents(); + + LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR); +} + +/** Event handler for the library USB Control Request reception event. */ +void EVENT_USB_Device_ControlRequest(void) +{ + HID_Device_ProcessControlRequest(&Generic_HID_Interface); +} + +/** Event handler for the USB device Start Of Frame event. */ +void EVENT_USB_Device_StartOfFrame(void) +{ + HID_Device_MillisecondElapsed(&Generic_HID_Interface); +} + +/** HID class driver callback function for the creation of HID reports to the host. + * + * \param[in] HIDInterfaceInfo Pointer to the HID class interface configuration structure being referenced + * \param[in,out] ReportID Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID + * \param[in] ReportType Type of the report to create, either HID_REPORT_ITEM_In or HID_REPORT_ITEM_Feature + * \param[out] ReportData Pointer to a buffer where the created report should be stored + * \param[out] ReportSize Number of bytes written in the report (or zero if no report is to be sent) + * + * \return Boolean \c true to force the sending of the report, \c false to let the library determine if it needs to be sent + */ +bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, + uint8_t* const ReportID, + const uint8_t ReportType, + void* ReportData, + uint16_t* const ReportSize) +{ + uint8_t* Data = (uint8_t*)ReportData; + uint8_t CurrLEDMask = LEDs_GetLEDs(); + + Data[0] = ((CurrLEDMask & LEDS_LED1) ? 1 : 0); + Data[1] = ((CurrLEDMask & LEDS_LED2) ? 1 : 0); + Data[2] = ((CurrLEDMask & LEDS_LED3) ? 1 : 0); + Data[3] = ((CurrLEDMask & LEDS_LED4) ? 1 : 0); + + *ReportSize = GENERIC_REPORT_SIZE; + return false; +} + +/** HID class driver callback function for the processing of HID reports from the host. + * + * \param[in] HIDInterfaceInfo Pointer to the HID class interface configuration structure being referenced + * \param[in] ReportID Report ID of the received report from the host + * \param[in] ReportType The type of report that the host has sent, either HID_REPORT_ITEM_Out or HID_REPORT_ITEM_Feature + * \param[in] ReportData Pointer to a buffer where the received report has been stored + * \param[in] ReportSize Size in bytes of the received HID report + */ +void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, + const uint8_t ReportID, + const uint8_t ReportType, + const void* ReportData, + const uint16_t ReportSize) +{ + uint8_t* Data = (uint8_t*)ReportData; + uint8_t NewLEDMask = LEDS_NO_LEDS; + + if (Data[0]) + NewLEDMask |= LEDS_LED1; + + if (Data[1]) + NewLEDMask |= LEDS_LED2; + + if (Data[2]) + NewLEDMask |= LEDS_LED3; + + if (Data[3]) + NewLEDMask |= LEDS_LED4; + + LEDs_SetAllLEDs(NewLEDMask); +} + |