264 lines
8.1 KiB
C
264 lines
8.1 KiB
C
|
/*
|
||
|
|
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 AndroidAccessoryHost demo. This file contains the main tasks
|
||
|
|
* of the demo and is responsible for the initial application hardware configuration.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "AndroidAccessoryHost.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 "Android Accessory Host Demo running.\r\n" ESC_FG_WHITE));
|
||
|
|
|
||
|
|
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
|
||
|
|
GlobalInterruptEnable();
|
||
|
|
|
||
|
|
for (;;)
|
||
|
|
{
|
||
|
|
AndroidHost_Task();
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
|
||
|
|
/** Task to set the configuration of the attached device after it has been enumerated. */
|
||
|
|
void AndroidHost_Task(void)
|
||
|
|
{
|
||
|
|
if (USB_HostState != HOST_STATE_Configured)
|
||
|
|
return;
|
||
|
|
|
||
|
|
/* Select the data IN pipe */
|
||
|
|
Pipe_SelectPipe(ANDROID_DATA_IN_PIPE);
|
||
|
|
Pipe_Unfreeze();
|
||
|
|
|
||
|
|
/* Check to see if a packet has been received */
|
||
|
|
if (Pipe_IsINReceived())
|
||
|
|
{
|
||
|
|
/* Re-freeze IN pipe after the packet has been received */
|
||
|
|
Pipe_Freeze();
|
||
|
|
|
||
|
|
/* Check if data is in the pipe */
|
||
|
|
if (Pipe_IsReadWriteAllowed())
|
||
|
|
{
|
||
|
|
uint8_t NextReceivedByte = Pipe_Read_8();
|
||
|
|
uint8_t LEDMask = LEDS_NO_LEDS;
|
||
|
|
|
||
|
|
if (NextReceivedByte & 0x01)
|
||
|
|
LEDMask |= LEDS_LED1;
|
||
|
|
|
||
|
|
if (NextReceivedByte & 0x02)
|
||
|
|
LEDMask |= LEDS_LED2;
|
||
|
|
|
||
|
|
if (NextReceivedByte & 0x04)
|
||
|
|
LEDMask |= LEDS_LED3;
|
||
|
|
|
||
|
|
if (NextReceivedByte & 0x08)
|
||
|
|
LEDMask |= LEDS_LED4;
|
||
|
|
|
||
|
|
LEDs_SetAllLEDs(LEDMask);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
/* Clear the pipe after all data in the packet has been read, ready for the next packet */
|
||
|
|
Pipe_ClearIN();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Re-freeze IN pipe after use */
|
||
|
|
Pipe_Freeze();
|
||
|
|
}
|
||
|
|
|
||
|
|
/** 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 "\r\nDevice 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 Device Data.\r\n"));
|
||
|
|
|
||
|
|
/* Get and process the configuration descriptor data */
|
||
|
|
uint8_t ErrorCode = ProcessDeviceDescriptor();
|
||
|
|
|
||
|
|
bool RequiresModeSwitch = (ErrorCode == NonAccessoryModeAndroidDevice);
|
||
|
|
|
||
|
|
/* Error out if the device is not an Android device or an error occurred */
|
||
|
|
if ((ErrorCode != AccessoryModeAndroidDevice) && (ErrorCode != NonAccessoryModeAndroidDevice))
|
||
|
|
{
|
||
|
|
if (ErrorCode == ControlError)
|
||
|
|
puts_P(PSTR(ESC_FG_RED "Control Error (Get Device).\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;
|
||
|
|
}
|
||
|
|
|
||
|
|
printf_P(PSTR("Android Device Detected - %sAccessory mode.\r\n"), (RequiresModeSwitch ? "Non-" : ""));
|
||
|
|
|
||
|
|
/* Check if a valid Android device was attached, but it is not current in Accessory mode */
|
||
|
|
if (RequiresModeSwitch)
|
||
|
|
{
|
||
|
|
uint16_t AndroidProtocol;
|
||
|
|
|
||
|
|
/* Fetch the version of the Android Accessory Protocol supported by the device */
|
||
|
|
if ((ErrorCode = Android_GetAccessoryProtocol(&AndroidProtocol)) != HOST_SENDCONTROL_Successful)
|
||
|
|
{
|
||
|
|
printf_P(PSTR(ESC_FG_RED "Control Error (Get Protocol).\r\n"
|
||
|
|
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
|
||
|
|
|
||
|
|
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Validate the returned protocol version */
|
||
|
|
if (AndroidProtocol != AOA_PROTOCOL_AccessoryV1)
|
||
|
|
{
|
||
|
|
puts_P(PSTR(ESC_FG_RED "Accessory Mode Not Supported."));
|
||
|
|
|
||
|
|
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Send the device strings and start the Android Accessory Mode */
|
||
|
|
Android_SendString(AOA_STRING_Manufacturer, "Dean Camera");
|
||
|
|
Android_SendString(AOA_STRING_Model, "LUFA Android Demo");
|
||
|
|
Android_SendString(AOA_STRING_Description, "LUFA Android Demo");
|
||
|
|
Android_SendString(AOA_STRING_Version, "1.0");
|
||
|
|
Android_SendString(AOA_STRING_URI, "http://www.lufa-lib.org");
|
||
|
|
Android_SendString(AOA_STRING_Serial, "0000000012345678");
|
||
|
|
|
||
|
|
Android_StartAccessoryMode();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
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);
|
||
|
|
|
||
|
|
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("Accessory Mode Android 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);
|
||
|
|
}
|
||
|
|
|