Demos/Host/ClassDriver/StillImageHost/StillImageHost.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 StillImageHost demo. This file contains the main tasks of
  34  *  the demo and is responsible for the initial application hardware configuration.
  35  */
  36
  37 #include "StillImageHost.h"
  38
  39 /** LUFA Still Image Class driver interface configuration and state information. This structure is
  40  *  passed to all Still Image 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_SI_Host_t DigitalCamera_SI_Interface =
  44         {
  45                 .Config =
  46                         {
  47                                 .DataINPipeNumber       = 1,
  48                                 .DataOUTPipeNumber      = 2,
  49                                 .EventsPipeNumber       = 3,
  50                         },
  51         };
  52
  53
  54 /** Main program entry point. This routine configures the hardware required by the application, then
  55  *  starts the scheduler to run the application tasks.
  56  */
  57 int main(void)
  58 {
  59         SetupHardware();
  60
  61         puts_P(PSTR(ESC_FG_CYAN "Still Image Host Demo running.\r\n" ESC_FG_WHITE));
  62
  63         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  64
  65         for (;;)
  66         {
  67                 switch (USB_HostState)
  68                 {
  69                         case HOST_STATE_Addressed:
  70                                 LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  71
  72                                 uint16_t ConfigDescriptorSize;
  73                                 uint8_t  ConfigDescriptorData[512];
  74
  75                                 if ((USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful) ||
  76                                     (ConfigDescriptorSize > sizeof(ConfigDescriptorData)) ||
  77                                         (USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData)))
  78                                 {
  79                                         printf("Error Retrieving Configuration Descriptor.\r\n");
  80                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  81                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  82                                         break;
  83                                 }
  84
  85                                 if (SI_Host_ConfigurePipes(&DigitalCamera_SI_Interface,
  86                                                            ConfigDescriptorSize, ConfigDescriptorData) != SI_ENUMERROR_NoError)
  87                                 {
  88                                         printf("Attached Device Not a Valid CDC Class Device.\r\n");
  89                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  90                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  91                                         break;
  92                                 }
  93
  94                                 if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
  95                                 {
  96                                         printf("Error Setting Device Configuration.\r\n");
  97                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  98                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  99                                         break;
 100                                 }
 101
 102                                 printf("Still Image Device Enumerated.\r\n");
 103                                 USB_HostState = HOST_STATE_Configured;
 104                                 break;
 105                         case HOST_STATE_Configured:
 106
 107                                 break;
 108                 }
 109
 110                 SI_Host_USBTask(&DigitalCamera_SI_Interface);
 111                 USB_USBTask();
 112         }
 113 }
 114
 115 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 116 void SetupHardware(void)
 117 {
 118         /* Disable watchdog if enabled by bootloader/fuses */
 119         MCUSR &= ~(1 << WDRF);
 120         wdt_disable();
 121
 122         /* Disable clock division */
 123         clock_prescale_set(clock_div_1);
 124
 125         /* Hardware Initialization */
 126         SerialStream_Init(9600, false);
 127         LEDs_Init();
 128         USB_Init();
 129 }
 130
 131 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 132  *  starts the library USB task to begin the enumeration and USB management process.
 133  */
 134 void EVENT_USB_Host_DeviceAttached(void)
 135 {
 136         puts_P(PSTR("Device Attached.\r\n"));
 137         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 138 }
 139
 140 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 141  *  stops the library USB task management process.
 142  */
 143 void EVENT_USB_Host_DeviceUnattached(void)
 144 {
 145         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 146         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 147 }
 148
 149 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 150  *  enumerated by the host and is now ready to be used by the application.
 151  */
 152 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 153 {
 154         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 155 }
 156
 157 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 158 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 159 {
 160         USB_ShutDown();
 161
 162         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 163                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 164
 165         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 166         for(;;);
 167 }
 168
 169 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 170  *  enumerating an attached USB device.
 171  */
 172 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 173 {
 174         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 175                                  " -- Error Code %d\r\n"
 176                                  " -- Sub Error Code %d\r\n"
 177                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 178
 179         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 180 }