You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
270 lines
8.1 KiB
270 lines
8.1 KiB
8 years ago
|
/*
|
||
|
|
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 GenericHIDHost demo. This file contains the main tasks of
|
||
|
|
* the demo and is responsible for the initial application hardware configuration.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "GenericHIDHost.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();
|
||
|
|
|
||
|
|
puts_P(PSTR(ESC_FG_CYAN "Generic HID Host Demo running.\r\n" ESC_FG_WHITE));
|
||
|
|
|
||
|
|
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
|
||
|
|
GlobalInterruptEnable();
|
||
|
|
|
||
|
|
for (;;)
|
||
|
|
{
|
||
|
|
ReadNextReport();
|
||
|
|
|
||
|
|
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);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Hardware Initialization */
|
||
|
|
Serial_Init(9600, false);
|
||
|
|
LEDs_Init();
|
||
|
|
USB_Init();
|
||
|
|
|
||
|
|
/* Create a stdio stream for the serial port for stdin and stdout */
|
||
|
|
Serial_CreateStream(NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
/** 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)
|
||
|
|
{
|
||
|
|
puts_P(PSTR("Getting Config Data.\r\n"));
|
||
|
|
|
||
|
|
uint8_t ErrorCode;
|
||
|
|
|
||
|
|
/* 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);
|
||
|
|
|
||
|
|
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* 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);
|
||
|
|
|
||
|
|
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
puts_P(PSTR("HID Device Enumerated.\r\n"));
|
||
|
|
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_Disable();
|
||
|
|
|
||
|
|
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)
|
||
|
|
{
|
||
|
|
if (USB_HostState != HOST_STATE_Configured)
|
||
|
|
return;
|
||
|
|
|
||
|
|
/* Select and unfreeze HID data IN pipe */
|
||
|
|
Pipe_SelectPipe(HID_DATA_IN_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())
|
||
|
|
{
|
||
|
|
uint8_t ReportINData[Pipe_BytesInPipe()];
|
||
|
|
|
||
|
|
/* Read in HID report data */
|
||
|
|
Pipe_Read_Stream_LE(&ReportINData, sizeof(ReportINData), NULL);
|
||
|
|
|
||
|
|
/* Print report data through the serial port */
|
||
|
|
for (uint16_t CurrByte = 0; CurrByte < sizeof(ReportINData); CurrByte++)
|
||
|
|
printf_P(PSTR("0x%02X "), ReportINData[CurrByte]);
|
||
|
|
|
||
|
|
puts_P(PSTR("\r\n"));
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Clear the IN endpoint, ready for next data packet */
|
||
|
|
Pipe_ClearIN();
|
||
|
|
|
||
|
|
/* Refreeze HID data IN pipe */
|
||
|
|
Pipe_Freeze();
|
||
|
|
}
|
||
|
|
|
||
|
|
/** Writes a report to the attached device.
|
||
|
|
*
|
||
|
|
* \param[in] ReportOUTData Buffer containing the report to send to the device
|
||
|
|
* \param[in] ReportIndex Index of the report in the device (zero if the device does not use multiple reports)
|
||
|
|
* \param[in] ReportType Type of report to send, either REPORT_TYPE_OUT or REPORT_TYPE_FEATURE
|
||
|
|
* \param[in] ReportLength Length of the report to send
|
||
|
|
*/
|
||
|
|
void WriteNextReport(uint8_t* ReportOUTData,
|
||
|
|
const uint8_t ReportIndex,
|
||
|
|
const uint8_t ReportType,
|
||
|
|
uint16_t ReportLength)
|
||
|
|
{
|
||
|
|
if (USB_HostState != HOST_STATE_Configured)
|
||
|
|
return;
|
||
|
|
|
||
|
|
/* Select the HID data OUT pipe */
|
||
|
|
Pipe_SelectPipe(HID_DATA_OUT_PIPE);
|
||
|
|
|
||
|
|
/* Not all HID devices have an OUT endpoint (some require OUT reports to be sent over the
|
||
|
|
* control endpoint instead) - check to see if the OUT endpoint has been initialized */
|
||
|
|
if (Pipe_IsConfigured() && (ReportType == REPORT_TYPE_OUT))
|
||
|
|
{
|
||
|
|
Pipe_Unfreeze();
|
||
|
|
|
||
|
|
/* Ensure pipe is ready to be written to before continuing */
|
||
|
|
if (!(Pipe_IsOUTReady()))
|
||
|
|
{
|
||
|
|
/* Refreeze the data OUT pipe */
|
||
|
|
Pipe_Freeze();
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* If the report index is used, send it before the report data */
|
||
|
|
if (ReportIndex)
|
||
|
|
Pipe_Write_8(ReportIndex);
|
||
|
|
|
||
|
|
/* Write out HID report data */
|
||
|
|
Pipe_Write_Stream_LE(ReportOUTData, ReportLength, NULL);
|
||
|
|
|
||
|
|
/* Clear the OUT endpoint, send last data packet */
|
||
|
|
Pipe_ClearOUT();
|
||
|
|
|
||
|
|
/* Refreeze the data OUT pipe */
|
||
|
|
Pipe_Freeze();
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
/* Class specific request to send a HID report to the device */
|
||
|
|
USB_ControlRequest = (USB_Request_Header_t)
|
||
|
|
{
|
||
|
|
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
|
||
|
|
.bRequest = HID_REQ_SetReport,
|
||
|
|
.wValue = ((ReportType << 8) | ReportIndex),
|
||
|
|
.wIndex = 0,
|
||
|
|
.wLength = ReportLength,
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Select the control pipe for the request transfer */
|
||
|
|
Pipe_SelectPipe(PIPE_CONTROLPIPE);
|
||
|
|
|
||
|
|
/* Send the request to the device */
|
||
|
|
USB_Host_SendControlRequest(ReportOUTData);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|