diff options
Diffstat (limited to 'Demos/Device/LowLevel/Joystick/Joystick.c')
-rw-r--r-- | Demos/Device/LowLevel/Joystick/Joystick.c | 418 |
1 files changed, 209 insertions, 209 deletions
diff --git a/Demos/Device/LowLevel/Joystick/Joystick.c b/Demos/Device/LowLevel/Joystick/Joystick.c index e84eef0424..6ced1ce44e 100644 --- a/Demos/Device/LowLevel/Joystick/Joystick.c +++ b/Demos/Device/LowLevel/Joystick/Joystick.c @@ -1,209 +1,209 @@ -/*
- LUFA Library
- Copyright (C) Dean Camera, 2010.
-
- dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
-*/
-
-/*
- Copyright 2010 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 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 Joystick demo. This file contains the main tasks of the demo and
- * is responsible for the initial application hardware configuration.
- */
-
-#include "Joystick.h"
-
-/** 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();
- Buttons_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 and joystick reporting tasks.
- */
-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 set the current configuration
- * of the USB device after enumeration - the device endpoints are configured and the joystick reporting task started.
- */
-void EVENT_USB_Device_ConfigurationChanged(void)
-{
- /* Indicate USB connected and ready */
- LEDs_SetAllLEDs(LEDMASK_USB_READY);
-
- /* Setup Joystick Report Endpoint */
- if (!(Endpoint_ConfigureEndpoint(JOYSTICK_EPNUM, EP_TYPE_INTERRUPT,
- ENDPOINT_DIR_IN, JOYSTICK_EPSIZE,
- ENDPOINT_BANK_SINGLE)))
- {
- LEDs_SetAllLEDs(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.
- */
-void EVENT_USB_Device_UnhandledControlRequest(void)
-{
- /* Handle HID Class specific requests */
- switch (USB_ControlRequest.bRequest)
- {
- case REQ_GetReport:
- if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
- {
- USB_JoystickReport_Data_t JoystickReportData;
-
- Endpoint_ClearSETUP();
-
- /* Create the next HID report to send to the host */
- GetNextReport(&JoystickReportData);
-
- /* Write the report data to the control endpoint */
- Endpoint_Write_Control_Stream_LE(&JoystickReportData, sizeof(JoystickReportData));
-
- /* Finalize the stream transfer to send the last packet or clear the host abort */
- Endpoint_ClearOUT();
- }
-
- break;
- }
-}
-
-/** 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
- *
- * \return Boolean true if the new report differs from the last report, false otherwise
- */
-bool GetNextReport(USB_JoystickReport_Data_t* ReportData)
-{
- static uint8_t PrevJoyStatus = 0;
- static uint8_t PrevButtonStatus = 0;
- uint8_t JoyStatus_LCL = Joystick_GetStatus();
- uint8_t ButtonStatus_LCL = Buttons_GetStatus();
- bool InputChanged = false;
-
- /* Clear the report contents */
- memset(ReportData, 0, sizeof(USB_JoystickReport_Data_t));
-
- if (JoyStatus_LCL & JOY_UP)
- ReportData->Y = -100;
- else if (JoyStatus_LCL & JOY_DOWN)
- ReportData->Y = 100;
-
- if (JoyStatus_LCL & JOY_LEFT)
- ReportData->X = -100;
- else if (JoyStatus_LCL & JOY_RIGHT)
- ReportData->X = 100;
-
- if (JoyStatus_LCL & JOY_PRESS)
- ReportData->Button = (1 << 1);
-
- if (ButtonStatus_LCL & BUTTONS_BUTTON1)
- ReportData->Button |= (1 << 0);
-
- /* Check if the new report is different to the previous report */
- InputChanged = (uint8_t)(PrevJoyStatus ^ JoyStatus_LCL) | (uint8_t)(PrevButtonStatus ^ ButtonStatus_LCL);
-
- /* Save the current joystick status for later comparison */
- PrevJoyStatus = JoyStatus_LCL;
- PrevButtonStatus = ButtonStatus_LCL;
-
- /* Return whether the new report is different to the previous report or not */
- return InputChanged;
-}
-
-/** Function to manage HID report generation and transmission to the host. */
-void HID_Task(void)
-{
- /* Device must be connected and configured for the task to run */
- if (USB_DeviceState != DEVICE_STATE_Configured)
- return;
-
- /* Select the Joystick Report Endpoint */
- Endpoint_SelectEndpoint(JOYSTICK_EPNUM);
-
- /* Check to see if the host is ready for another packet */
- if (Endpoint_IsINReady())
- {
- USB_JoystickReport_Data_t JoystickReportData;
-
- /* Create the next HID report to send to the host */
- GetNextReport(&JoystickReportData);
-
- /* Write Joystick Report Data */
- Endpoint_Write_Stream_LE(&JoystickReportData, sizeof(JoystickReportData));
-
- /* Finalize the stream transfer to send the last packet */
- Endpoint_ClearIN();
-
- /* Clear the report data afterwards */
- memset(&JoystickReportData, 0, sizeof(JoystickReportData));
- }
-}
+/* + LUFA Library + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2010 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 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 Joystick demo. This file contains the main tasks of the demo and + * is responsible for the initial application hardware configuration. + */ + +#include "Joystick.h" + +/** 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(); + Buttons_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 and joystick reporting tasks. + */ +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 set the current configuration + * of the USB device after enumeration - the device endpoints are configured and the joystick reporting task started. + */ +void EVENT_USB_Device_ConfigurationChanged(void) +{ + /* Indicate USB connected and ready */ + LEDs_SetAllLEDs(LEDMASK_USB_READY); + + /* Setup Joystick Report Endpoint */ + if (!(Endpoint_ConfigureEndpoint(JOYSTICK_EPNUM, EP_TYPE_INTERRUPT, + ENDPOINT_DIR_IN, JOYSTICK_EPSIZE, + ENDPOINT_BANK_SINGLE))) + { + LEDs_SetAllLEDs(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. + */ +void EVENT_USB_Device_UnhandledControlRequest(void) +{ + /* Handle HID Class specific requests */ + switch (USB_ControlRequest.bRequest) + { + case REQ_GetReport: + if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)) + { + USB_JoystickReport_Data_t JoystickReportData; + + Endpoint_ClearSETUP(); + + /* Create the next HID report to send to the host */ + GetNextReport(&JoystickReportData); + + /* Write the report data to the control endpoint */ + Endpoint_Write_Control_Stream_LE(&JoystickReportData, sizeof(JoystickReportData)); + + /* Finalize the stream transfer to send the last packet or clear the host abort */ + Endpoint_ClearOUT(); + } + + break; + } +} + +/** 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 + * + * \return Boolean true if the new report differs from the last report, false otherwise + */ +bool GetNextReport(USB_JoystickReport_Data_t* ReportData) +{ + static uint8_t PrevJoyStatus = 0; + static uint8_t PrevButtonStatus = 0; + uint8_t JoyStatus_LCL = Joystick_GetStatus(); + uint8_t ButtonStatus_LCL = Buttons_GetStatus(); + bool InputChanged = false; + + /* Clear the report contents */ + memset(ReportData, 0, sizeof(USB_JoystickReport_Data_t)); + + if (JoyStatus_LCL & JOY_UP) + ReportData->Y = -100; + else if (JoyStatus_LCL & JOY_DOWN) + ReportData->Y = 100; + + if (JoyStatus_LCL & JOY_LEFT) + ReportData->X = -100; + else if (JoyStatus_LCL & JOY_RIGHT) + ReportData->X = 100; + + if (JoyStatus_LCL & JOY_PRESS) + ReportData->Button = (1 << 1); + + if (ButtonStatus_LCL & BUTTONS_BUTTON1) + ReportData->Button |= (1 << 0); + + /* Check if the new report is different to the previous report */ + InputChanged = (uint8_t)(PrevJoyStatus ^ JoyStatus_LCL) | (uint8_t)(PrevButtonStatus ^ ButtonStatus_LCL); + + /* Save the current joystick status for later comparison */ + PrevJoyStatus = JoyStatus_LCL; + PrevButtonStatus = ButtonStatus_LCL; + + /* Return whether the new report is different to the previous report or not */ + return InputChanged; +} + +/** Function to manage HID report generation and transmission to the host. */ +void HID_Task(void) +{ + /* Device must be connected and configured for the task to run */ + if (USB_DeviceState != DEVICE_STATE_Configured) + return; + + /* Select the Joystick Report Endpoint */ + Endpoint_SelectEndpoint(JOYSTICK_EPNUM); + + /* Check to see if the host is ready for another packet */ + if (Endpoint_IsINReady()) + { + USB_JoystickReport_Data_t JoystickReportData; + + /* Create the next HID report to send to the host */ + GetNextReport(&JoystickReportData); + + /* Write Joystick Report Data */ + Endpoint_Write_Stream_LE(&JoystickReportData, sizeof(JoystickReportData)); + + /* Finalize the stream transfer to send the last packet */ + Endpoint_ClearIN(); + + /* Clear the report data afterwards */ + memset(&JoystickReportData, 0, sizeof(JoystickReportData)); + } +} |