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
 115                                 SImage_Host_SendCommand(&DigitalCamera_SI_Interface, 0x1013, 0, NULL);
 116                                 if (SImage_Host_ReceiveResponse(&DigitalCamera_SI_Interface))
 117                                 {
 118                                         printf("Could not turn off device.\r\n");
 119                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 120                                         break;
 121                                 }
 122
 123                                 printf("Device Off.\r\n");
 124
 125                                 printf("Closing Session...\r\n");
 126
 127                                 if (SImage_Host_CloseSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
 128                                 {
 129                                         printf("Could not close PIMA session.\r\n");
 130                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 131                                         break;
 132                                 }
 133
 134                                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 135                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 136                                 break;
 137                 }
 138
 139                 SI_Host_USBTask(&DigitalCamera_SI_Interface);
 140                 USB_USBTask();
 141         }
 142 }
 143
 144 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 145 void SetupHardware(void)
 146 {
 147         /* Disable watchdog if enabled by bootloader/fuses */
 148         MCUSR &= ~(1 << WDRF);
 149         wdt_disable();
 150
 151         /* Disable clock division */
 152         clock_prescale_set(clock_div_1);
 153
 154         /* Hardware Initialization */
 155         SerialStream_Init(9600, false);
 156         LEDs_Init();
 157         USB_Init();
 158 }
 159
 160 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 161  *  starts the library USB task to begin the enumeration and USB management process.
 162  */
 163 void EVENT_USB_Host_DeviceAttached(void)
 164 {
 165         puts_P(PSTR("Device Attached.\r\n"));
 166         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 167 }
 168
 169 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 170  *  stops the library USB task management process.
 171  */
 172 void EVENT_USB_Host_DeviceUnattached(void)
 173 {
 174         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 175         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 176 }
 177
 178 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 179  *  enumerated by the host and is now ready to be used by the application.
 180  */
 181 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 182 {
 183         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 184 }
 185
 186 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 187 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 188 {
 189         USB_ShutDown();
 190
 191         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 192                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 193
 194         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 195         for(;;);
 196 }
 197
 198 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 199  *  enumerating an attached USB device.
 200  */
 201 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 202 {
 203         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 204                                  " -- Error Code %d\r\n"
 205                                  " -- Sub Error Code %d\r\n"
 206                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 207
 208         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 209 }