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, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all 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                                 .DataINPipeDoubleBank   = false,
  49
  50                                 .DataOUTPipeNumber      = 2,
  51                                 .DataOUTPipeDoubleBank  = false,
  52
  53                                 .EventsPipeNumber       = 3,
  54                                 .EventsPipeDoubleBank   = false,
  55                         },
  56         };
  57
  58 /** Main program entry point. This routine configures the hardware required by the application, then
  59  *  enters a loop to run the application tasks in sequence.
  60  */
  61 int main(void)
  62 {
  63         SetupHardware();
  64
  65         puts_P(PSTR(ESC_FG_CYAN "Still Image Host Demo running.\r\n" ESC_FG_WHITE));
  66
  67         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  68
  69         for (;;)
  70         {
  71                 switch (USB_HostState)
  72                 {
  73                         case HOST_STATE_Addressed:
  74                                 LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  75
  76                                 uint16_t ConfigDescriptorSize;
  77                                 uint8_t  ConfigDescriptorData[512];
  78
  79                                 if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
  80                                                                        sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
  81                                 {
  82                                         printf("Error Retrieving Configuration Descriptor.\r\n");
  83                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  84                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  85                                         break;
  86                                 }
  87
  88                                 if (SImage_Host_ConfigurePipes(&DigitalCamera_SI_Interface,
  89                                                                ConfigDescriptorSize, ConfigDescriptorData) != SI_ENUMERROR_NoError)
  90                                 {
  91                                         printf("Attached Device Not a Valid CDC Class Device.\r\n");
  92                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  93                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  94                                         break;
  95                                 }
  96
  97                                 if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
  98                                 {
  99                                         printf("Error Setting Device Configuration.\r\n");
 100                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 101                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 102                                         break;
 103                                 }
 104
 105                                 printf("Still Image Device Enumerated.\r\n");
 106                                 USB_HostState = HOST_STATE_Configured;
 107                                 break;
 108                         case HOST_STATE_Configured:
 109                                 printf("Opening Session...\r\n");
 110
 111                                 if (SImage_Host_OpenSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
 112                                 {
 113                                         printf("Could not open PIMA session.\r\n");
 114                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 115                                         break;
 116                                 }
 117
 118                                 printf("Turning off Device...\r\n");
 119
 120                                 SImage_Host_SendCommand(&DigitalCamera_SI_Interface, 0x1013, 0, NULL);
 121                                 if (SImage_Host_ReceiveResponse(&DigitalCamera_SI_Interface))
 122                                 {
 123                                         printf("Could not turn off device.\r\n");
 124                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 125                                         break;
 126                                 }
 127
 128                                 printf("Device Off.\r\n");
 129
 130                                 printf("Closing Session...\r\n");
 131
 132                                 if (SImage_Host_CloseSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
 133                                 {
 134                                         printf("Could not close PIMA session.\r\n");
 135                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 136                                         break;
 137                                 }
 138
 139                                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 140                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 141                                 break;
 142                 }
 143
 144                 SImage_Host_USBTask(&DigitalCamera_SI_Interface);
 145                 USB_USBTask();
 146         }
 147 }
 148
 149 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 150 void SetupHardware(void)
 151 {
 152         /* Disable watchdog if enabled by bootloader/fuses */
 153         MCUSR &= ~(1 << WDRF);
 154         wdt_disable();
 155
 156         /* Disable clock division */
 157         clock_prescale_set(clock_div_1);
 158
 159         /* Hardware Initialization */
 160         SerialStream_Init(9600, false);
 161         LEDs_Init();
 162         USB_Init();
 163 }
 164
 165 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 166  *  starts the library USB task to begin the enumeration and USB management process.
 167  */
 168 void EVENT_USB_Host_DeviceAttached(void)
 169 {
 170         puts_P(PSTR("Device Attached.\r\n"));
 171         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 172 }
 173
 174 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 175  *  stops the library USB task management process.
 176  */
 177 void EVENT_USB_Host_DeviceUnattached(void)
 178 {
 179         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 180         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 181 }
 182
 183 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 184  *  enumerated by the host and is now ready to be used by the application.
 185  */
 186 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 187 {
 188         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 189 }
 190
 191 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 192 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 193 {
 194         USB_ShutDown();
 195
 196         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 197                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 198
 199         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 200         for(;;);
 201 }
 202
 203 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 204  *  enumerating an attached USB device.
 205  */
 206 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 207 {
 208         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 209                                  " -- Error Code %d\r\n"
 210                                  " -- Sub Error Code %d\r\n"
 211                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 212
 213         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 214 }