-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2009.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2009 Denver Gingerich (denver [at] ossguy [dot] com)\r
- Based on code by Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, and distribute this software\r
- and its documentation for any purpose and without fee is hereby\r
- granted, provided that the above copyright notice appear in all\r
- copies and that both that the copyright notice and this\r
- permission notice and warranty disclaimer appear in supporting\r
- documentation, and that the name of the author not be used in\r
- advertising or publicity pertaining to distribution of the\r
- software without specific, written prior permission.\r
-\r
- The author disclaim all warranties with regard to this\r
- software, including all implied warranties of merchantability\r
- and fitness. In no event shall the author be liable for any\r
- special, indirect or consequential damages or any damages\r
- whatsoever resulting from loss of use, data or profits, whether\r
- in an action of contract, negligence or other tortious action,\r
- arising out of or in connection with the use or performance of\r
- this software.\r
-*/\r
-\r
-/** \file\r
- *\r
- * Main source file for the Keyboard demo. This file contains the main tasks of the demo and\r
- * is responsible for the initial application hardware configuration.\r
- */\r
- \r
-#include "Keyboard.h"\r
-\r
-/* Global Variables */\r
-/** Indicates what report mode the host has requested, true for normal HID reporting mode, false for special boot\r
- * protocol reporting mode.\r
- */\r
-bool UsingReportProtocol = true;\r
-\r
-/** Current Idle period. This is set by the host via a Set Idle HID class request to silence the device's reports\r
- * for either the entire idle duration, or until the report status changes (e.g. the user presses a key).\r
- */\r
-uint16_t IdleCount = 500;\r
-\r
-/** Current Idle period remaining. When the IdleCount value is set, this tracks the remaining number of idle\r
- * milliseconds. This is separate to the IdleCount timer and is incremented and compared as the host may request \r
- * the current idle period via a Get Idle HID class request, thus its value must be preserved.\r
- */\r
-uint16_t IdleMSRemaining = 0;\r
-\r
-\r
-/** Main program entry point. This routine configures the hardware required by the application, then\r
- * starts the scheduler to run the USB management task.\r
- */\r
-int main(void)\r
-{\r
- SetupHardware();\r
- \r
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
-\r
- for (;;)\r
- {\r
- HID_Task();\r
- USB_USBTask();\r
- }\r
-}\r
-\r
-/** Configures the board hardware and chip peripherals for the demo's functionality. */\r
-void SetupHardware(void)\r
-{\r
- /* Disable watchdog if enabled by bootloader/fuses */\r
- MCUSR &= ~(1 << WDRF);\r
- wdt_disable();\r
-\r
- /* Disable clock division */\r
- clock_prescale_set(clock_div_1);\r
-\r
- /* Hardware Initialization */\r
- Joystick_Init();\r
- LEDs_Init();\r
- USB_Init();\r
- \r
- /* Millisecond timer initialization, with output compare interrupt enabled for the idle timing */\r
- OCR0A = 0x7D;\r
- TCCR0A = (1 << WGM01);\r
- TCCR0B = ((1 << CS01) | (1 << CS00));\r
- TIMSK0 = (1 << OCIE0A);\r
-}\r
-\r
-/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs and\r
- * starts the library USB task to begin the enumeration and USB management process.\r
- */\r
-void EVENT_USB_Connect(void)\r
-{\r
- /* Indicate USB enumerating */\r
- LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
-\r
- /* Default to report protocol on connect */\r
- UsingReportProtocol = true;\r
-}\r
-\r
-/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via\r
- * the status LEDs.\r
- */\r
-void EVENT_USB_Disconnect(void)\r
-{\r
- /* Indicate USB not ready */\r
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
-}\r
-\r
-/** Event handler for the USB_ConfigurationChanged event. This is fired when the host sets the current configuration\r
- * of the USB device after enumeration, and configures the keyboard device endpoints.\r
- */\r
-void EVENT_USB_ConfigurationChanged(void)\r
-{ \r
- /* Indicate USB connected and ready */\r
- LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
-\r
- /* Setup Keyboard Keycode Report Endpoint */\r
- if (!(Endpoint_ConfigureEndpoint(KEYBOARD_EPNUM, EP_TYPE_INTERRUPT,\r
- ENDPOINT_DIR_IN, KEYBOARD_EPSIZE,\r
- ENDPOINT_BANK_SINGLE)))\r
- {\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
- }\r
- \r
- /* Setup Keyboard LED Report Endpoint */\r
- if (!(Endpoint_ConfigureEndpoint(KEYBOARD_LEDS_EPNUM, EP_TYPE_INTERRUPT,\r
- ENDPOINT_DIR_OUT, KEYBOARD_EPSIZE,\r
- ENDPOINT_BANK_SINGLE)))\r
- {\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
- }\r
-}\r
-\r
-/** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific\r
- * control requests that are not handled internally by the USB library (including the HID commands, which are\r
- * all issued via the control endpoint), so that they can be handled appropriately for the application.\r
- */\r
-void EVENT_USB_UnhandledControlPacket(void)\r
-{\r
- /* Handle HID Class specific requests */\r
- switch (USB_ControlRequest.bRequest)\r
- {\r
- case REQ_GetReport:\r
- if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))\r
- {\r
- USB_KeyboardReport_Data_t KeyboardReportData;\r
-\r
- Endpoint_ClearSETUP();\r
- \r
- /* Create the next keyboard report for transmission to the host */\r
- CreateKeyboardReport(&KeyboardReportData);\r
-\r
- /* Write the report data to the control endpoint */\r
- Endpoint_Write_Control_Stream_LE(&KeyboardReportData, sizeof(KeyboardReportData));\r
- \r
- /* Finalize the stream transfer to send the last packet or clear the host abort */\r
- Endpoint_ClearOUT();\r
- }\r
- \r
- break;\r
- case REQ_SetReport:\r
- if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))\r
- {\r
- Endpoint_ClearSETUP();\r
- \r
- /* Wait until the LED report has been sent by the host */\r
- while (!(Endpoint_IsOUTReceived()))\r
- {\r
- if (USB_DeviceState == DEVICE_STATE_Unattached)\r
- return;\r
- }\r
-\r
- /* Read in the LED report from the host */\r
- uint8_t LEDStatus = Endpoint_Read_Byte();\r
-\r
- /* Process the incoming LED report */\r
- ProcessLEDReport(LEDStatus);\r
- \r
- /* Clear the endpoint data */\r
- Endpoint_ClearOUT();\r
-\r
- Endpoint_ClearStatusStage();\r
- }\r
- \r
- break;\r
- case REQ_GetProtocol:\r
- if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))\r
- {\r
- Endpoint_ClearSETUP();\r
- \r
- /* Write the current protocol flag to the host */\r
- Endpoint_Write_Byte(UsingReportProtocol);\r
- \r
- /* Send the flag to the host */\r
- Endpoint_ClearIN();\r
-\r
- Endpoint_ClearStatusStage();\r
- }\r
- \r
- break;\r
- case REQ_SetProtocol:\r
- if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))\r
- {\r
- Endpoint_ClearSETUP();\r
-\r
- /* Set or clear the flag depending on what the host indicates that the current Protocol should be */\r
- UsingReportProtocol = (USB_ControlRequest.wValue != 0);\r
-\r
- Endpoint_ClearStatusStage();\r
- }\r
- \r
- break;\r
- case REQ_SetIdle:\r
- if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))\r
- {\r
- Endpoint_ClearSETUP();\r
- \r
- /* Get idle period in MSB, IdleCount must be multiplied by 4 to get number of milliseconds */\r
- IdleCount = ((USB_ControlRequest.wValue & 0xFF00) >> 6);\r
- \r
- Endpoint_ClearStatusStage();\r
- }\r
- \r
- break;\r
- case REQ_GetIdle:\r
- if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))\r
- { \r
- Endpoint_ClearSETUP();\r
- \r
- /* Write the current idle duration to the host, must be divided by 4 before sent to host */\r
- Endpoint_Write_Byte(IdleCount >> 2);\r
- \r
- /* Send the flag to the host */\r
- Endpoint_ClearIN();\r
-\r
- Endpoint_ClearStatusStage();\r
- }\r
-\r
- break;\r
- }\r
-}\r
-\r
-/** ISR for the timer 0 compare vector. This ISR fires once each millisecond, and increments the\r
- * scheduler elapsed idle period counter when the host has set an idle period.\r
- */\r
-ISR(TIMER0_COMPA_vect, ISR_BLOCK)\r
-{\r
- /* One millisecond has elapsed, decrement the idle time remaining counter if it has not already elapsed */\r
- if (IdleMSRemaining)\r
- IdleMSRemaining--;\r
-}\r
-\r
-/** Fills the given HID report data structure with the next HID report to send to the host.\r
- *\r
- * \param[out] ReportData Pointer to a HID report data structure to be filled\r
- */\r
-void CreateKeyboardReport(USB_KeyboardReport_Data_t* ReportData)\r
-{\r
- uint8_t JoyStatus_LCL = Joystick_GetStatus();\r
-\r
- /* Clear the report contents */\r
- memset(ReportData, 0, sizeof(USB_KeyboardReport_Data_t));\r
-\r
- if (JoyStatus_LCL & JOY_UP)\r
- ReportData->KeyCode[0] = 0x04; // A\r
- else if (JoyStatus_LCL & JOY_DOWN)\r
- ReportData->KeyCode[0] = 0x05; // B\r
-\r
- if (JoyStatus_LCL & JOY_LEFT)\r
- ReportData->KeyCode[0] = 0x06; // C\r
- else if (JoyStatus_LCL & JOY_RIGHT)\r
- ReportData->KeyCode[0] = 0x07; // D\r
-\r
- if (JoyStatus_LCL & JOY_PRESS)\r
- ReportData->KeyCode[0] = 0x08; // E\r
-}\r
-\r
-/** Processes a received LED report, and updates the board LEDs states to match.\r
- *\r
- * \param[in] LEDReport LED status report from the host\r
- */\r
-void ProcessLEDReport(uint8_t LEDReport)\r
-{\r
- uint8_t LEDMask = LEDS_LED2;\r
- \r
- if (LEDReport & 0x01) // NUM Lock\r
- LEDMask |= LEDS_LED1;\r
- \r
- if (LEDReport & 0x02) // CAPS Lock\r
- LEDMask |= LEDS_LED3;\r
-\r
- if (LEDReport & 0x04) // SCROLL Lock\r
- LEDMask |= LEDS_LED4;\r
-\r
- /* Set the status LEDs to the current Keyboard LED status */\r
- LEDs_SetAllLEDs(LEDMask);\r
-}\r
-\r
-/** Sends the next HID report to the host, via the keyboard data endpoint. */\r
-void SendNextReport(void)\r
-{\r
- static USB_KeyboardReport_Data_t PrevKeyboardReportData;\r
- USB_KeyboardReport_Data_t KeyboardReportData;\r
- bool SendReport = true;\r
- \r
- /* Create the next keyboard report for transmission to the host */\r
- CreateKeyboardReport(&KeyboardReportData);\r
- \r
- /* Check to see if the report data has changed - if so a report MUST be sent */\r
- SendReport = (memcmp(&PrevKeyboardReportData, &KeyboardReportData, sizeof(USB_KeyboardReport_Data_t)) != 0);\r
- \r
- /* Save the current report data for later comparison to check for changes */\r
- PrevKeyboardReportData = KeyboardReportData;\r
- \r
- /* Check if the idle period is set and has elapsed */\r
- if ((IdleCount != HID_IDLE_CHANGESONLY) && (!(IdleMSRemaining)))\r
- {\r
- /* Reset the idle time remaining counter */\r
- IdleMSRemaining = IdleCount;\r
- \r
- /* Idle period is set and has elapsed, must send a report to the host */\r
- SendReport = true;\r
- }\r
- \r
- /* Select the Keyboard Report Endpoint */\r
- Endpoint_SelectEndpoint(KEYBOARD_EPNUM);\r
-\r
- /* Check if Keyboard Endpoint Ready for Read/Write and if we should send a new report */\r
- if (Endpoint_IsReadWriteAllowed() && SendReport)\r
- {\r
- /* Write Keyboard Report Data */\r
- Endpoint_Write_Stream_LE(&KeyboardReportData, sizeof(KeyboardReportData));\r
- \r
- /* Finalize the stream transfer to send the last packet */\r
- Endpoint_ClearIN();\r
- }\r
-}\r
-\r
-/** Reads the next LED status report from the host from the LED data endpoint, if one has been sent. */\r
-void ReceiveNextReport(void)\r
-{\r
- /* Select the Keyboard LED Report Endpoint */\r
- Endpoint_SelectEndpoint(KEYBOARD_LEDS_EPNUM);\r
-\r
- /* Check if Keyboard LED Endpoint contains a packet */\r
- if (Endpoint_IsOUTReceived())\r
- {\r
- /* Check to see if the packet contains data */\r
- if (Endpoint_IsReadWriteAllowed())\r
- {\r
- /* Read in the LED report from the host */\r
- uint8_t LEDReport = Endpoint_Read_Byte();\r
-\r
- /* Process the read LED report from the host */\r
- ProcessLEDReport(LEDReport);\r
- }\r
-\r
- /* Handshake the OUT Endpoint - clear endpoint and ready for next report */\r
- Endpoint_ClearOUT();\r
- }\r
-}\r
-\r
-/** Function to manage HID report generation and transmission to the host, when in report mode. */\r
-void HID_Task(void)\r
-{\r
- /* Device must be connected and configured for the task to run */\r
- if (USB_DeviceState != DEVICE_STATE_Configured)\r
- return;\r
- \r
- /* Send the next keypress report to the host */\r
- SendNextReport();\r
- \r
- /* Process the LED report sent from the host */\r
- ReceiveNextReport();\r
-}\r
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2011.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2011 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 disclaim 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 Keyboard demo. This file contains the main tasks of the demo and
+ * is responsible for the initial application hardware configuration.
+ */
+
+#include "Keyboard.h"
+
+/** Indicates what report mode the host has requested, true for normal HID reporting mode, false for special boot
+ * protocol reporting mode.
+ */
+static bool UsingReportProtocol = true;
+
+/** Current Idle period. This is set by the host via a Set Idle HID class request to silence the device's reports
+ * for either the entire idle duration, or until the report status changes (e.g. the user presses a key).
+ */
+static uint16_t IdleCount = 500;
+
+/** Current Idle period remaining. When the IdleCount value is set, this tracks the remaining number of idle
+ * milliseconds. This is separate to the IdleCount timer and is incremented and compared as the host may request
+ * the current idle period via a Get Idle HID class request, thus its value must be preserved.
+ */
+static uint16_t IdleMSRemaining = 0;
+
+
+/** 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);
+ sei();
+
+ for (;;)
+ {
+ HID_Task();
+ USB_USBTask();
+ }
+}
+
+/** Configures the board hardware and chip peripherals for the demo's functionality. */
+void SetupHardware(void)
+{
+ /* Disable watchdog if enabled by bootloader/fuses */
+ MCUSR &= ~(1 << WDRF);
+ wdt_disable();
+
+ /* Disable clock division */
+ clock_prescale_set(clock_div_1);
+
+ /* Hardware Initialization */
+ Joystick_Init();
+ LEDs_Init();
+ USB_Init();
+ Buttons_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);
+
+ /* Default to report protocol on connect */
+ UsingReportProtocol = true;
+}
+
+/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via
+ * the status LEDs.
+ */
+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 device endpoints.
+ */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+ bool ConfigSuccess = true;
+
+ /* Setup HID Report Endpoints */
+ ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
+ KEYBOARD_EPSIZE, ENDPOINT_BANK_SINGLE);
+ ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_OUT_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_OUT,
+ KEYBOARD_EPSIZE, ENDPOINT_BANK_SINGLE);
+
+ /* Turn on Start-of-Frame events for tracking HID report period expiry */
+ USB_Device_EnableSOFEvents();
+
+ /* 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))
+ {
+ USB_KeyboardReport_Data_t KeyboardReportData;
+
+ /* Create the next keyboard report for transmission to the host */
+ CreateKeyboardReport(&KeyboardReportData);
+
+ Endpoint_ClearSETUP();
+
+ /* Write the report data to the control endpoint */
+ Endpoint_Write_Control_Stream_LE(&KeyboardReportData, sizeof(KeyboardReportData));
+ Endpoint_ClearOUT();
+ }
+
+ 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 */
+ ProcessLEDReport(LEDStatus);
+ }
+
+ break;
+ case HID_REQ_GetProtocol:
+ if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
+ {
+ Endpoint_ClearSETUP();
+
+ /* Write the current protocol flag to the host */
+ Endpoint_Write_8(UsingReportProtocol);
+
+ Endpoint_ClearIN();
+ Endpoint_ClearStatusStage();
+ }
+
+ break;
+ case HID_REQ_SetProtocol:
+ if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
+ {
+ Endpoint_ClearSETUP();
+ Endpoint_ClearStatusStage();
+
+ /* Set or clear the flag depending on what the host indicates that the current Protocol should be */
+ UsingReportProtocol = (USB_ControlRequest.wValue != 0);
+ }
+
+ break;
+ case HID_REQ_SetIdle:
+ if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
+ {
+ Endpoint_ClearSETUP();
+ Endpoint_ClearStatusStage();
+
+ /* Get idle period in MSB, IdleCount must be multiplied by 4 to get number of milliseconds */
+ IdleCount = ((USB_ControlRequest.wValue & 0xFF00) >> 6);
+ }
+
+ break;
+ case HID_REQ_GetIdle:
+ if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
+ {
+ Endpoint_ClearSETUP();
+
+ /* Write the current idle duration to the host, must be divided by 4 before sent to host */
+ Endpoint_Write_8(IdleCount >> 2);
+
+ Endpoint_ClearIN();
+ Endpoint_ClearStatusStage();
+ }
+
+ break;
+ }
+}
+
+/** Event handler for the USB device Start Of Frame event. */
+void EVENT_USB_Device_StartOfFrame(void)
+{
+ /* One millisecond has elapsed, decrement the idle time remaining counter if it has not already elapsed */
+ if (IdleMSRemaining)
+ IdleMSRemaining--;
+}
+
+/** Fills the given HID report data structure with the next HID report to send to the host.
+ *
+ * \param[out] ReportData Pointer to a HID report data structure to be filled
+ */
+void CreateKeyboardReport(USB_KeyboardReport_Data_t* const ReportData)
+{
+ uint8_t JoyStatus_LCL = Joystick_GetStatus();
+ uint8_t ButtonStatus_LCL = Buttons_GetStatus();
+
+ uint8_t UsedKeyCodes = 0;
+
+ /* Clear the report contents */
+ memset(ReportData, 0, sizeof(USB_KeyboardReport_Data_t));
+
+ /* Make sent key uppercase by indicating that the left shift key is pressed */
+ ReportData->Modifier = HID_KEYBOARD_MODIFER_LEFTSHIFT;
+
+ if (JoyStatus_LCL & JOY_UP)
+ ReportData->KeyCode[UsedKeyCodes++] = HID_KEYBOARD_SC_A;
+ else if (JoyStatus_LCL & JOY_DOWN)
+ ReportData->KeyCode[UsedKeyCodes++] = HID_KEYBOARD_SC_B;
+
+ if (JoyStatus_LCL & JOY_LEFT)
+ ReportData->KeyCode[UsedKeyCodes++] = HID_KEYBOARD_SC_C;
+ else if (JoyStatus_LCL & JOY_RIGHT)
+ ReportData->KeyCode[UsedKeyCodes++] = HID_KEYBOARD_SC_D;
+
+ if (JoyStatus_LCL & JOY_PRESS)
+ ReportData->KeyCode[UsedKeyCodes++] = HID_KEYBOARD_SC_E;
+
+ if (ButtonStatus_LCL & BUTTONS_BUTTON1)
+ ReportData->KeyCode[UsedKeyCodes++] = HID_KEYBOARD_SC_F;
+}
+
+/** Processes a received LED report, and updates the board LEDs states to match.
+ *
+ * \param[in] LEDReport LED status report from the host
+ */
+void ProcessLEDReport(const uint8_t LEDReport)
+{
+ uint8_t LEDMask = LEDS_LED2;
+
+ if (LEDReport & HID_KEYBOARD_LED_NUMLOCK)
+ LEDMask |= LEDS_LED1;
+
+ if (LEDReport & HID_KEYBOARD_LED_CAPSLOCK)
+ LEDMask |= LEDS_LED3;
+
+ if (LEDReport & HID_KEYBOARD_LED_SCROLLLOCK)
+ LEDMask |= LEDS_LED4;
+
+ /* Set the status LEDs to the current Keyboard LED status */
+ LEDs_SetAllLEDs(LEDMask);
+}
+
+/** Sends the next HID report to the host, via the keyboard data endpoint. */
+void SendNextReport(void)
+{
+ static USB_KeyboardReport_Data_t PrevKeyboardReportData;
+ USB_KeyboardReport_Data_t KeyboardReportData;
+ bool SendReport = true;
+
+ /* Create the next keyboard report for transmission to the host */
+ CreateKeyboardReport(&KeyboardReportData);
+
+ /* Check to see if the report data has changed - if so a report MUST be sent */
+ SendReport = (memcmp(&PrevKeyboardReportData, &KeyboardReportData, sizeof(USB_KeyboardReport_Data_t)) != 0);
+
+ /* Check if the idle period is set and has elapsed */
+ if (IdleCount && (!(IdleMSRemaining)))
+ {
+ /* Reset the idle time remaining counter */
+ IdleMSRemaining = IdleCount;
+
+ /* Idle period is set and has elapsed, must send a report to the host */
+ SendReport = true;
+ }
+
+ /* Select the Keyboard Report Endpoint */
+ Endpoint_SelectEndpoint(KEYBOARD_IN_EPNUM);
+
+ /* Check if Keyboard Endpoint Ready for Read/Write and if we should send a new report */
+ if (Endpoint_IsReadWriteAllowed() && SendReport)
+ {
+ /* Save the current report data for later comparison to check for changes */
+ PrevKeyboardReportData = KeyboardReportData;
+
+ /* Write Keyboard Report Data */
+ Endpoint_Write_Stream_LE(&KeyboardReportData, sizeof(KeyboardReportData), NULL);
+
+ /* Finalize the stream transfer to send the last packet */
+ Endpoint_ClearIN();
+ }
+}
+
+/** Reads the next LED status report from the host from the LED data endpoint, if one has been sent. */
+void ReceiveNextReport(void)
+{
+ /* Select the Keyboard LED Report Endpoint */
+ Endpoint_SelectEndpoint(KEYBOARD_OUT_EPNUM);
+
+ /* Check if Keyboard LED Endpoint contains a packet */
+ if (Endpoint_IsOUTReceived())
+ {
+ /* Check to see if the packet contains data */
+ if (Endpoint_IsReadWriteAllowed())
+ {
+ /* Read in the LED report from the host */
+ uint8_t LEDReport = Endpoint_Read_8();
+
+ /* Process the read LED report from the host */
+ ProcessLEDReport(LEDReport);
+ }
+
+ /* Handshake the OUT Endpoint - clear endpoint and ready for next report */
+ Endpoint_ClearOUT();
+ }
+}
+
+/** Function to manage HID report generation and transmission to the host, when in report mode. */
+void HID_Task(void)
+{
+ /* Device must be connected and configured for the task to run */
+ if (USB_DeviceState != DEVICE_STATE_Configured)
+ return;
+
+ /* Send the next keypress report to the host */
+ SendNextReport();
+
+ /* Process the LED report sent from the host */
+ ReceiveNextReport();
+}
+
projects / pub / USBasp.git / blobdiff