Demos/Host/ClassDriver/StillImageHost/StillImageHost.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2010.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2010  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 Still Image 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                                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 107                                 USB_HostState = HOST_STATE_Configured;
 108                                 break;
 109                         case HOST_STATE_Configured:
 110                                 printf("Opening Session...\r\n");
 111
 112                                 if (SImage_Host_OpenSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
 113                                 {
 114                                         printf("Could not open PIMA session.\r\n");
 115                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 116                                         break;
 117                                 }
 118
 119                                 printf("Turning off Device...\r\n");
 120
 121                                 SImage_Host_SendCommand(&DigitalCamera_SI_Interface, 0x1013, 0, NULL);
 122                                 if (SImage_Host_ReceiveResponse(&DigitalCamera_SI_Interface))
 123                                 {
 124                                         printf("Could not turn off device.\r\n");
 125                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 126                                         break;
 127                                 }
 128
 129                                 printf("Device Off.\r\n");
 130
 131                                 printf("Closing Session...\r\n");
 132
 133                                 if (SImage_Host_CloseSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
 134                                 {
 135                                         printf("Could not close PIMA session.\r\n");
 136                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 137                                         break;
 138                                 }
 139
 140                                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 141                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 142                                 break;
 143                 }
 144
 145                 SImage_Host_USBTask(&DigitalCamera_SI_Interface);
 146                 USB_USBTask();
 147         }
 148 }
 149
 150 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 151 void SetupHardware(void)
 152 {
 153         /* Disable watchdog if enabled by bootloader/fuses */
 154         MCUSR &= ~(1 << WDRF);
 155         wdt_disable();
 156
 157         /* Disable clock division */
 158         clock_prescale_set(clock_div_1);
 159
 160         /* Hardware Initialization */
 161         SerialStream_Init(9600, false);
 162         LEDs_Init();
 163         USB_Init();
 164 }
 165
 166 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 167  *  starts the library USB task to begin the enumeration and USB management process.
 168  */
 169 void EVENT_USB_Host_DeviceAttached(void)
 170 {
 171         puts_P(PSTR("Device Attached.\r\n"));
 172         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 173 }
 174
 175 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 176  *  stops the library USB task management process.
 177  */
 178 void EVENT_USB_Host_DeviceUnattached(void)
 179 {
 180         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 181         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 182 }
 183
 184 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 185  *  enumerated by the host and is now ready to be used by the application.
 186  */
 187 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 188 {
 189         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 190 }
 191
 192 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 193 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 194 {
 195         USB_ShutDown();
 196
 197         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 198                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 199
 200         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 201         for(;;);
 202 }
 203
 204 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 205  *  enumerating an attached USB device.
 206  */
 207 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 208 {
 209         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 210                                  " -- Error Code %d\r\n"
 211                                  " -- Sub Error Code %d\r\n"
 212                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 213
 214         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 215 }