/*
LUFA Library
- Copyright (C) Dean Camera, 2010.
-
+ Copyright (C) Dean Camera, 2015.
+
dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
+ www.lufa-lib.org
*/
/*
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2015 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
+ 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
+ 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
+ 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
+ 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
* 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
+/** Indicates what report mode the host has requested, true for normal HID reporting mode, \c false for special boot
* protocol reporting mode.
*/
-bool UsingReportProtocol = true;
+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).
*/
-uint16_t IdleCount = 500;
+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
+ * 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.
*/
-uint16_t IdleMSRemaining = 0;
+static uint16_t IdleMSRemaining = 0;
/** Main program entry point. This routine configures the hardware required by the application, then
int main(void)
{
SetupHardware();
-
+
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
- sei();
+ GlobalInterruptEnable();
for (;;)
{
/** 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();
* of the USB device after enumeration, and configures the keyboard device endpoints.
*/
void EVENT_USB_Device_ConfigurationChanged(void)
-{
- /* Indicate USB connected and ready */
- LEDs_SetAllLEDs(LEDMASK_USB_READY);
-
- /* Setup Keyboard Keycode Report Endpoint */
- if (!(Endpoint_ConfigureEndpoint(KEYBOARD_EPNUM, EP_TYPE_INTERRUPT,
- ENDPOINT_DIR_IN, KEYBOARD_EPSIZE,
- ENDPOINT_BANK_SINGLE)))
- {
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- }
-
- /* Setup Keyboard LED Report Endpoint */
- if (!(Endpoint_ConfigureEndpoint(KEYBOARD_LEDS_EPNUM, EP_TYPE_INTERRUPT,
- ENDPOINT_DIR_OUT, KEYBOARD_EPSIZE,
- ENDPOINT_BANK_SINGLE)))
- {
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- }
-
+{
+ bool ConfigSuccess = true;
+
+ /* Setup HID Report Endpoints */
+ ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_IN_EPADDR, EP_TYPE_INTERRUPT, KEYBOARD_EPSIZE, 1);
+ ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_OUT_EPADDR, EP_TYPE_INTERRUPT, KEYBOARD_EPSIZE, 1);
+
+ /* 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_UnhandledControlRequest event. This is used to catch standard and class specific
- * control requests that are not handled internally by the USB library (including the HID commands, which are
- * all issued via the control endpoint), so that they can be handled appropriately for the application.
+/** 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_UnhandledControlRequest(void)
+void EVENT_USB_Device_ControlRequest(void)
{
/* Handle HID Class specific requests */
switch (USB_ControlRequest.bRequest)
{
- case REQ_GetReport:
+ case HID_REQ_GetReport:
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
{
USB_KeyboardReport_Data_t KeyboardReportData;
- Endpoint_ClearSETUP();
-
/* 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));
-
- /* Finalize the stream transfer to send the last packet or clear the host abort */
Endpoint_ClearOUT();
}
-
+
break;
- case REQ_SetReport:
+ 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()))
{
}
/* Read in the LED report from the host */
- uint8_t LEDStatus = Endpoint_Read_Byte();
+ uint8_t LEDStatus = Endpoint_Read_8();
- /* Process the incoming LED report */
- ProcessLEDReport(LEDStatus);
-
- /* Clear the endpoint data */
Endpoint_ClearOUT();
-
Endpoint_ClearStatusStage();
+
+ /* Process the incoming LED report */
+ ProcessLEDReport(LEDStatus);
}
-
+
break;
- case REQ_GetProtocol:
+ 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_Byte(UsingReportProtocol);
-
- /* Send the flag to the host */
- Endpoint_ClearIN();
+ Endpoint_Write_8(UsingReportProtocol);
+ Endpoint_ClearIN();
Endpoint_ClearStatusStage();
}
-
+
break;
- case REQ_SetProtocol:
+ 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);
-
- Endpoint_ClearStatusStage();
}
-
+
break;
- case REQ_SetIdle:
+ 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);
-
- Endpoint_ClearStatusStage();
}
-
+
break;
- case REQ_GetIdle:
+ 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_Byte(IdleCount >> 2);
-
- /* Send the flag to the host */
- Endpoint_ClearIN();
+ Endpoint_Write_8(IdleCount >> 2);
+ Endpoint_ClearIN();
Endpoint_ClearStatusStage();
}
*
* \param[out] ReportData Pointer to a HID report data structure to be filled
*/
-void CreateKeyboardReport(USB_KeyboardReport_Data_t* ReportData)
+void CreateKeyboardReport(USB_KeyboardReport_Data_t* const ReportData)
{
uint8_t JoyStatus_LCL = Joystick_GetStatus();
uint8_t ButtonStatus_LCL = Buttons_GetStatus();
/* 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 = KEYBOARD_MODIFER_LEFTSHIFT;
-
+ ReportData->Modifier = HID_KEYBOARD_MODIFIER_LEFTSHIFT;
+
if (JoyStatus_LCL & JOY_UP)
- ReportData->KeyCode[UsedKeyCodes++] = 0x04; // A
+ ReportData->KeyCode[UsedKeyCodes++] = HID_KEYBOARD_SC_A;
else if (JoyStatus_LCL & JOY_DOWN)
- ReportData->KeyCode[UsedKeyCodes++] = 0x05; // B
+ ReportData->KeyCode[UsedKeyCodes++] = HID_KEYBOARD_SC_B;
if (JoyStatus_LCL & JOY_LEFT)
- ReportData->KeyCode[UsedKeyCodes++] = 0x06; // C
+ ReportData->KeyCode[UsedKeyCodes++] = HID_KEYBOARD_SC_C;
else if (JoyStatus_LCL & JOY_RIGHT)
- ReportData->KeyCode[UsedKeyCodes++] = 0x07; // D
+ ReportData->KeyCode[UsedKeyCodes++] = HID_KEYBOARD_SC_D;
if (JoyStatus_LCL & JOY_PRESS)
- ReportData->KeyCode[UsedKeyCodes++] = 0x08; // E
-
+ ReportData->KeyCode[UsedKeyCodes++] = HID_KEYBOARD_SC_E;
+
if (ButtonStatus_LCL & BUTTONS_BUTTON1)
- ReportData->KeyCode[UsedKeyCodes++] = 0x09; // F
+ 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(uint8_t LEDReport)
+void ProcessLEDReport(const uint8_t LEDReport)
{
uint8_t LEDMask = LEDS_LED2;
-
- if (LEDReport & KEYBOARD_LED_NUMLOCK)
+
+ if (LEDReport & HID_KEYBOARD_LED_NUMLOCK)
LEDMask |= LEDS_LED1;
-
- if (LEDReport & KEYBOARD_LED_CAPSLOCK)
+
+ if (LEDReport & HID_KEYBOARD_LED_CAPSLOCK)
LEDMask |= LEDS_LED3;
- if (LEDReport & KEYBOARD_LED_SCROLLLOCK)
+ if (LEDReport & HID_KEYBOARD_LED_SCROLLLOCK)
LEDMask |= LEDS_LED4;
/* Set the status LEDs to the current Keyboard LED status */
{
static USB_KeyboardReport_Data_t PrevKeyboardReportData;
USB_KeyboardReport_Data_t KeyboardReportData;
- bool SendReport = true;
-
+ bool SendReport = false;
+
/* 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 != HID_IDLE_CHANGESONLY) && (!(IdleMSRemaining)))
+ 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;
}
-
+ else
+ {
+ /* 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);
+ }
+
/* Select the Keyboard Report Endpoint */
- Endpoint_SelectEndpoint(KEYBOARD_EPNUM);
+ Endpoint_SelectEndpoint(KEYBOARD_IN_EPADDR);
/* 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));
-
+ Endpoint_Write_Stream_LE(&KeyboardReportData, sizeof(KeyboardReportData), NULL);
+
/* Finalize the stream transfer to send the last packet */
Endpoint_ClearIN();
}
void ReceiveNextReport(void)
{
/* Select the Keyboard LED Report Endpoint */
- Endpoint_SelectEndpoint(KEYBOARD_LEDS_EPNUM);
+ Endpoint_SelectEndpoint(KEYBOARD_OUT_EPADDR);
/* Check if Keyboard LED Endpoint contains a packet */
if (Endpoint_IsOUTReceived())
if (Endpoint_IsReadWriteAllowed())
{
/* Read in the LED report from the host */
- uint8_t LEDReport = Endpoint_Read_Byte();
+ uint8_t LEDReport = Endpoint_Read_8();
/* Process the read LED report from the host */
ProcessLEDReport(LEDReport);
/* 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();
}
+
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