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 /** Main program entry point. This routine configures the hardware required by the application, then
  54  *  starts the scheduler to run the application tasks.
  55  */
  56 int main(void)
  57 {
  58         SetupHardware();
  59
  60         puts_P(PSTR(ESC_FG_CYAN "Still Image Host Demo running.\r\n" ESC_FG_WHITE));
  61
  62         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  63
  64         for (;;)
  65         {
  66                 switch (USB_HostState)
  67                 {
  68                         case HOST_STATE_Addressed:
  69                                 LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  70
  71                                 uint16_t ConfigDescriptorSize;
  72                                 uint8_t  ConfigDescriptorData[512];
  73
  74                                 if (USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
  75                                                                   sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
  76                                 {
  77                                         printf("Error Retrieving Configuration Descriptor.\r\n");
  78                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  79                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  80                                         break;
  81                                 }
  82
  83                                 if (SI_Host_ConfigurePipes(&DigitalCamera_SI_Interface,
  84                                                            ConfigDescriptorSize, ConfigDescriptorData) != SI_ENUMERROR_NoError)
  85                                 {
  86                                         printf("Attached Device Not a Valid CDC Class Device.\r\n");
  87                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  88                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  89                                         break;
  90                                 }
  91
  92                                 if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
  93                                 {
  94                                         printf("Error Setting Device Configuration.\r\n");
  95                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  96                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  97                                         break;
  98                                 }
  99
 100                                 printf("Still Image Device Enumerated.\r\n");
 101                                 USB_HostState = HOST_STATE_Configured;
 102                                 break;
 103                         case HOST_STATE_Configured:
 104                                 printf("Opening Session...\r\n");
 105
 106                                 if (SImage_Host_OpenSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
 107                                 {
 108                                         printf("Could not open PIMA session.\r\n");
 109                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 110                                         break;
 111                                 }
 112
 113                                 printf("Closing Session...\r\n");
 114
 115                                 if (SImage_Host_CloseSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
 116                                 {
 117                                         printf("Could not close PIMA session.\r\n");
 118                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 119                                         break;
 120                                 }
 121
 122                                 printf("Device Idle.\r\n");
 123
 124                                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 125                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 126                                 break;
 127                 }
 128
 129                 SI_Host_USBTask(&DigitalCamera_SI_Interface);
 130                 USB_USBTask();
 131         }
 132 }
 133
 134 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 135 void SetupHardware(void)
 136 {
 137         /* Disable watchdog if enabled by bootloader/fuses */
 138         MCUSR &= ~(1 << WDRF);
 139         wdt_disable();
 140
 141         /* Disable clock division */
 142         clock_prescale_set(clock_div_1);
 143
 144         /* Hardware Initialization */
 145         SerialStream_Init(9600, false);
 146         LEDs_Init();
 147         USB_Init();
 148 }
 149
 150 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 151  *  starts the library USB task to begin the enumeration and USB management process.
 152  */
 153 void EVENT_USB_Host_DeviceAttached(void)
 154 {
 155         puts_P(PSTR("Device Attached.\r\n"));
 156         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 157 }
 158
 159 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 160  *  stops the library USB task management process.
 161  */
 162 void EVENT_USB_Host_DeviceUnattached(void)
 163 {
 164         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 165         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 166 }
 167
 168 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 169  *  enumerated by the host and is now ready to be used by the application.
 170  */
 171 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 172 {
 173         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 174 }
 175
 176 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 177 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 178 {
 179         USB_ShutDown();
 180
 181         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 182                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 183
 184         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 185         for(;;);
 186 }
 187
 188 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 189  *  enumerating an attached USB device.
 190  */
 191 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 192 {
 193         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 194                                  " -- Error Code %d\r\n"
 195                                  " -- Sub Error Code %d\r\n"
 196                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 197
 198         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 199 }