266 lines
8.4 KiB
C
266 lines
8.4 KiB
C
/*
|
|
LUFA Library
|
|
Copyright (C) Dean Camera, 2009.
|
|
|
|
dean [at] fourwalledcubicle [dot] com
|
|
www.fourwalledcubicle.com
|
|
*/
|
|
|
|
/*
|
|
Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
|
|
|
Permission to use, copy, modify, and distribute this software
|
|
and its documentation for any purpose and without fee is hereby
|
|
granted, 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 MouseHost demo. This file contains the main tasks of
|
|
* the demo and is responsible for the initial application hardware configuration.
|
|
*/
|
|
|
|
#include "MouseHost.h"
|
|
|
|
/** Main program entry point. This routine configures the hardware required by the application, then
|
|
* starts the scheduler to run the application tasks.
|
|
*/
|
|
int main(void)
|
|
{
|
|
SetupHardware();
|
|
|
|
puts_P(PSTR(ESC_FG_CYAN "Mouse HID Host Demo running.\r\n" ESC_FG_WHITE));
|
|
|
|
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
|
|
|
|
for (;;)
|
|
{
|
|
Mouse_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 */
|
|
SerialStream_Init(9600, false);
|
|
LEDs_Init();
|
|
USB_Init();
|
|
}
|
|
|
|
/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
|
|
* starts the library USB task to begin the enumeration and USB management process.
|
|
*/
|
|
void EVENT_USB_Host_DeviceAttached(void)
|
|
{
|
|
puts_P(PSTR(ESC_FG_GREEN "Device Attached.\r\n" ESC_FG_WHITE));
|
|
LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
|
|
}
|
|
|
|
/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
|
|
* stops the library USB task management process.
|
|
*/
|
|
void EVENT_USB_Host_DeviceUnattached(void)
|
|
{
|
|
puts_P(PSTR(ESC_FG_GREEN "Device Unattached.\r\n" ESC_FG_WHITE));
|
|
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
|
|
}
|
|
|
|
/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
|
|
* enumerated by the host and is now ready to be used by the application.
|
|
*/
|
|
void EVENT_USB_Host_DeviceEnumerationComplete(void)
|
|
{
|
|
LEDs_SetAllLEDs(LEDMASK_USB_READY);
|
|
}
|
|
|
|
/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
|
|
void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
|
|
{
|
|
USB_ShutDown();
|
|
|
|
printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
|
|
" -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
|
|
|
|
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
|
for(;;);
|
|
}
|
|
|
|
/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
|
|
* enumerating an attached USB device.
|
|
*/
|
|
void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
|
|
{
|
|
printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
|
|
" -- Error Code %d\r\n"
|
|
" -- Sub Error Code %d\r\n"
|
|
" -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
|
|
|
|
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
|
}
|
|
|
|
/** Reads in and processes the next report from the attached device, displaying the report
|
|
* contents on the board LEDs and via the serial port.
|
|
*/
|
|
void ReadNextReport(void)
|
|
{
|
|
USB_MouseReport_Data_t MouseReport;
|
|
uint8_t LEDMask = LEDS_NO_LEDS;
|
|
|
|
/* Select mouse data pipe */
|
|
Pipe_SelectPipe(MOUSE_DATAPIPE);
|
|
|
|
/* Unfreeze keyboard data pipe */
|
|
Pipe_Unfreeze();
|
|
|
|
/* Check to see if a packet has been received */
|
|
if (!(Pipe_IsINReceived()))
|
|
{
|
|
/* Refreeze HID data IN pipe */
|
|
Pipe_Freeze();
|
|
|
|
return;
|
|
}
|
|
|
|
/* Ensure pipe contains data before trying to read from it */
|
|
if (Pipe_IsReadWriteAllowed())
|
|
{
|
|
/* Read in mouse report data */
|
|
Pipe_Read_Stream_LE(&MouseReport, sizeof(MouseReport));
|
|
|
|
/* Alter status LEDs according to mouse X movement */
|
|
if (MouseReport.X > 0)
|
|
LEDMask |= LEDS_LED1;
|
|
else if (MouseReport.X < 0)
|
|
LEDMask |= LEDS_LED2;
|
|
|
|
/* Alter status LEDs according to mouse Y movement */
|
|
if (MouseReport.Y > 0)
|
|
LEDMask |= LEDS_LED3;
|
|
else if (MouseReport.Y < 0)
|
|
LEDMask |= LEDS_LED4;
|
|
|
|
/* Alter status LEDs according to mouse button position */
|
|
if (MouseReport.Button)
|
|
LEDMask = LEDS_ALL_LEDS;
|
|
|
|
LEDs_SetAllLEDs(LEDMask);
|
|
|
|
/* Print mouse report data through the serial port */
|
|
printf_P(PSTR("dX:%2d dY:%2d Button:%d\r\n"), MouseReport.X,
|
|
MouseReport.Y,
|
|
MouseReport.Button);
|
|
}
|
|
|
|
/* Clear the IN endpoint, ready for next data packet */
|
|
Pipe_ClearIN();
|
|
|
|
/* Refreeze mouse data pipe */
|
|
Pipe_Freeze();
|
|
}
|
|
|
|
/** Task to set the configuration of the attached device after it has been enumerated, and to read and process
|
|
* HID reports from the device and display the results onto the board LEDs.
|
|
*/
|
|
void Mouse_HID_Task(void)
|
|
{
|
|
uint8_t ErrorCode;
|
|
|
|
/* Switch to determine what user-application handled host state the host state machine is in */
|
|
switch (USB_HostState)
|
|
{
|
|
case HOST_STATE_Addressed:
|
|
puts_P(PSTR("Getting Config Data.\r\n"));
|
|
|
|
/* Get and process the configuration descriptor data */
|
|
if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
|
|
{
|
|
if (ErrorCode == ControlError)
|
|
puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
|
|
else
|
|
puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
|
|
|
|
printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
|
|
|
|
/* Indicate error status */
|
|
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
|
|
|
/* Wait until USB device disconnected */
|
|
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
|
|
break;
|
|
}
|
|
|
|
/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
|
|
if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
|
|
{
|
|
printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
|
|
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
|
|
|
|
/* Indicate error status */
|
|
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
|
|
|
/* Wait until USB device disconnected */
|
|
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
|
|
break;
|
|
}
|
|
|
|
/* HID class request to set the mouse protocol to the Boot Protocol */
|
|
USB_ControlRequest = (USB_Request_Header_t)
|
|
{
|
|
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
|
|
.bRequest = REQ_SetProtocol,
|
|
.wValue = 0,
|
|
.wIndex = 0,
|
|
.wLength = 0,
|
|
};
|
|
|
|
/* Select the control pipe for the request transfer */
|
|
Pipe_SelectPipe(PIPE_CONTROLPIPE);
|
|
|
|
/* Send the request, display error and wait for device detach if request fails */
|
|
if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
|
|
{
|
|
printf_P(PSTR(ESC_FG_RED "Control Error (Set Protocol).\r\n"
|
|
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
|
|
|
|
/* Indicate error status */
|
|
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
|
|
|
/* Wait until USB device disconnected */
|
|
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
|
|
break;
|
|
}
|
|
|
|
puts_P(PSTR("Mouse Enumerated.\r\n"));
|
|
|
|
USB_HostState = HOST_STATE_Configured;
|
|
break;
|
|
case HOST_STATE_Configured:
|
|
/* If a report has been received, read and process it */
|
|
ReadNextReport();
|
|
|
|
break;
|
|
}
|
|
}
|