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- /*
- LUFA Library
- Copyright (C) Dean Camera, 2014.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
- */
-
- /*
- Copyright 2014 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"
-
- /** LUFA Android Open Accessory Class driver interface configuration and state information. This
- * structure is passed to all Android Open Accessory Class driver functions, so that multiple
- * instances of the same class within a device can be differentiated from one another.
- */
- USB_ClassInfo_AOA_Host_t AndroidDevice_AOA_Interface =
- {
- .Config =
- {
- .DataINPipe =
- {
- .Address = (PIPE_DIR_IN | 1),
- .Banks = 1,
- },
- .DataOUTPipe =
- {
- .Address = (PIPE_DIR_OUT | 2),
- .Banks = 1,
- },
- .PropertyStrings =
- {
- [AOA_STRING_Manufacturer] = "Dean Camera",
- [AOA_STRING_Model] = "LUFA Android Demo",
- [AOA_STRING_Description] = "LUFA Android Demo",
- [AOA_STRING_Version] = "1.0",
- [AOA_STRING_URI] = "http://www.lufa-lib.org",
- [AOA_STRING_Serial] = "0000000012345678",
- },
- },
- };
-
-
- /** 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 (;;)
- {
- AOAHost_Task();
-
- AOA_Host_USBTask(&AndroidDevice_AOA_Interface);
- 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 manage an enumerated USB Android Accessory device once connected, to print received data
- * from the device to the serial port.
- */
- void AOAHost_Task(void)
- {
- if (USB_HostState != HOST_STATE_Configured)
- return;
-
- if (AOA_Host_BytesReceived(&AndroidDevice_AOA_Interface))
- {
- /* Echo received bytes from the attached device through the USART */
- int16_t ReceivedByte = AOA_Host_ReceiveByte(&AndroidDevice_AOA_Interface);
- if (!(ReceivedByte < 0))
- {
- /* Turn on and off LED1 based on the bytes received */
- LEDs_ChangeLEDs(LEDS_LED1, ReceivedByte ? LEDS_LED1 : LEDS_NO_LEDS);
-
- putchar(ReceivedByte);
- }
- }
- }
-
- /** 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("Device Attached.\r\n"));
- 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("\r\nDevice Unattached.\r\n"));
- 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_ENUMERATING);
-
- USB_Descriptor_Device_t DeviceDescriptor;
-
- if (USB_Host_GetDeviceDescriptor(&DeviceDescriptor) != HOST_SENDCONTROL_Successful)
- {
- puts_P(PSTR("Error Retrieving Device Descriptor.\r\n"));
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- return;
- }
-
- bool NeedModeSwitch;
- if (!(AOA_Host_ValidateAccessoryDevice(&AndroidDevice_AOA_Interface, &DeviceDescriptor, &NeedModeSwitch)))
- {
- puts_P(PSTR("Not an Android device.\r\n"));
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- return;
- }
-
- if (NeedModeSwitch)
- {
- puts_P(PSTR("Not in Accessory mode, switching...\r\n"));
- AOA_Host_StartAccessoryMode(&AndroidDevice_AOA_Interface);
- return;
- }
-
- uint16_t ConfigDescriptorSize;
- uint8_t ConfigDescriptorData[512];
-
- if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
- sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
- {
- puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- return;
- }
-
- if (AOA_Host_ConfigurePipes(&AndroidDevice_AOA_Interface,
- ConfigDescriptorSize, ConfigDescriptorData) != AOA_ENUMERROR_NoError)
- {
- puts_P(PSTR("Attached Device Not a Valid Android Accessory Class Device.\r\n"));
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- return;
- }
-
- if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
- {
- puts_P(PSTR("Error Setting Device Configuration.\r\n"));
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- return;
- }
-
- puts_P(PSTR("Android 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);
- }
-
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