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("Turning off Device...\r\n");
 114                                 SImage_Host_SendCommand(&DigitalCamera_SI_Interface, 0x1013, 0, 0, 0, 0, NULL);
 115                                 printf("Device Off.\r\n");
 116
 117                                 printf("Closing Session...\r\n");
 118
 119                                 if (SImage_Host_CloseSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
 120                                 {
 121                                         printf("Could not close PIMA session.\r\n");
 122                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 123                                         break;
 124                                 }
 125
 126                                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 127                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 128                                 break;
 129                 }
 130
 131                 SI_Host_USBTask(&DigitalCamera_SI_Interface);
 132                 USB_USBTask();
 133         }
 134 }
 135
 136 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 137 void SetupHardware(void)
 138 {
 139         /* Disable watchdog if enabled by bootloader/fuses */
 140         MCUSR &= ~(1 << WDRF);
 141         wdt_disable();
 142
 143         /* Disable clock division */
 144         clock_prescale_set(clock_div_1);
 145
 146         /* Hardware Initialization */
 147         SerialStream_Init(9600, false);
 148         LEDs_Init();
 149         USB_Init();
 150 }
 151
 152 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 153  *  starts the library USB task to begin the enumeration and USB management process.
 154  */
 155 void EVENT_USB_Host_DeviceAttached(void)
 156 {
 157         puts_P(PSTR("Device Attached.\r\n"));
 158         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 159 }
 160
 161 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 162  *  stops the library USB task management process.
 163  */
 164 void EVENT_USB_Host_DeviceUnattached(void)
 165 {
 166         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 167         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 168 }
 169
 170 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 171  *  enumerated by the host and is now ready to be used by the application.
 172  */
 173 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 174 {
 175         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 176 }
 177
 178 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 179 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 180 {
 181         USB_ShutDown();
 182
 183         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 184                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 185
 186         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 187         for(;;);
 188 }
 189
 190 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 191  *  enumerating an attached USB device.
 192  */
 193 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 194 {
 195         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 196                                  " -- Error Code %d\r\n"
 197                                  " -- Sub Error Code %d\r\n"
 198                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 199
 200         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 201 }