Demos/Host/ClassDriver/CDCHost/CDCHost.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2009.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, and distribute this software
  13   and its documentation for any purpose and without fee is hereby
  14   granted, provided that the above copyright notice appear in all
  15   copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *
  33  *  Main source file for the CDCHost demo. This file contains the main tasks of
  34  *  the demo and is responsible for the initial application hardware configuration.
  35  */
  36
  37 #include "CDCHost.h"
  38
  39 /** LUFA CDC Class driver interface configuration and state information. This structure is
  40  *  passed to all CDC Class driver functions, so that multiple instances of the same class
  41  *  within a device can be differentiated from one another.
  42  */
  43 USB_ClassInfo_CDC_t VirtualSerial_CDC_Interface;
  44
  45 /** Main program entry point. This routine configures the hardware required by the application, then
  46  *  starts the scheduler to run the application tasks.
  47  */
  48 int main(void)
  49 {
  50         SetupHardware();
  51
  52         puts_P(PSTR(ESC_RESET ESC_BG_WHITE ESC_INVERSE_ON ESC_ERASE_DISPLAY
  53                "CDC Host Demo running.\r\n" ESC_INVERSE_OFF));
  54
  55         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  56
  57         for (;;)
  58         {
  59                 USB_USBTask();
  60         }
  61 }
  62
  63 /** Configures the board hardware and chip peripherals for the demo's functionality. */
  64 void SetupHardware(void)
  65 {
  66         /* Disable watchdog if enabled by bootloader/fuses */
  67         MCUSR &= ~(1 << WDRF);
  68         wdt_disable();
  69
  70         /* Disable clock division */
  71         clock_prescale_set(clock_div_1);
  72
  73         /* Hardware Initialization */
  74         SerialStream_Init(9600, false);
  75         LEDs_Init();
  76         USB_Init();
  77 }
  78
  79 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
  80  *  starts the library USB task to begin the enumeration and USB management process.
  81  */
  82 void EVENT_USB_DeviceAttached(void)
  83 {
  84         puts_P(PSTR("Device Attached.\r\n"));
  85         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  86 }
  87
  88 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
  89  *  stops the library USB task management process.
  90  */
  91 void EVENT_USB_DeviceUnattached(void)
  92 {
  93         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
  94         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  95 }
  96
  97 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
  98  *  enumerated by the host and is now ready to be used by the application.
  99  */
 100 void EVENT_USB_DeviceEnumerationComplete(void)
 101 {
 102         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 103 }
 104
 105 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 106 void EVENT_USB_HostError(const uint8_t ErrorCode)
 107 {
 108         USB_ShutDown();
 109
 110         puts_P(PSTR(ESC_BG_RED "Host Mode Error\r\n"));
 111         printf_P(PSTR(" -- Error Code %d\r\n"), ErrorCode);
 112
 113         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 114         for(;;);
 115 }
 116
 117 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 118  *  enumerating an attached USB device.
 119  */
 120 void EVENT_USB_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 121 {
 122         puts_P(PSTR(ESC_BG_RED "Dev Enum Error\r\n"));
 123         printf_P(PSTR(" -- Error Code %d\r\n"), ErrorCode);
 124         printf_P(PSTR(" -- Sub Error Code %d\r\n"), SubErrorCode);
 125         printf_P(PSTR(" -- In State %d\r\n"), USB_HostState);
 126
 127         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 128 }