Demos/Host/ClassDriver/StillImageHost/StillImageHost.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2011.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2011  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
  59 /** Main program entry point. This routine configures the hardware required by the application, then
  60  *  enters a loop to run the application tasks in sequence.
  61  */
  62 int main(void)
  63 {
  64         SetupHardware();
  65
  66         puts_P(PSTR(ESC_FG_CYAN "Still Image Host Demo running.\r\n" ESC_FG_WHITE));
  67
  68         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  69         sei();
  70
  71         for (;;)
  72         {
  73                 switch (USB_HostState)
  74                 {
  75                         case HOST_STATE_Addressed:
  76                                 LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  77
  78                                 uint16_t ConfigDescriptorSize;
  79                                 uint8_t  ConfigDescriptorData[512];
  80
  81                                 if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
  82                                                                        sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
  83                                 {
  84                                         puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
  85                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  86                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  87                                         break;
  88                                 }
  89
  90                                 if (SI_Host_ConfigurePipes(&DigitalCamera_SI_Interface,
  91                                                            ConfigDescriptorSize, ConfigDescriptorData) != SI_ENUMERROR_NoError)
  92                                 {
  93                                         puts_P(PSTR("Attached Device Not a Valid Still Image Class Device.\r\n"));
  94                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  95                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  96                                         break;
  97                                 }
  98
  99                                 if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
 100                                 {
 101                                         puts_P(PSTR("Error Setting Device Configuration.\r\n"));
 102                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 103                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 104                                         break;
 105                                 }
 106
 107                                 puts_P(PSTR("Still Image Device Enumerated.\r\n"));
 108                                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 109                                 USB_HostState = HOST_STATE_Configured;
 110                                 break;
 111                         case HOST_STATE_Configured:
 112                                 puts_P(PSTR("Opening Session...\r\n"));
 113
 114                                 if (SI_Host_OpenSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
 115                                 {
 116                                         puts_P(PSTR("Could not open PIMA session.\r\n"));
 117                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 118                                         break;
 119                                 }
 120
 121                                 puts_P(PSTR("Turning off Device...\r\n"));
 122
 123                                 SI_Host_SendCommand(&DigitalCamera_SI_Interface, 0x1013, 0, NULL);
 124                                 if (SI_Host_ReceiveResponse(&DigitalCamera_SI_Interface))
 125                                 {
 126                                         puts_P(PSTR("Could not turn off device.\r\n"));
 127                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 128                                         break;
 129                                 }
 130
 131                                 puts_P(PSTR("Device Off.\r\n"));
 132
 133                                 puts_P(PSTR("Closing Session...\r\n"));
 134
 135                                 if (SI_Host_CloseSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
 136                                 {
 137                                         puts_P(PSTR("Could not close PIMA session.\r\n"));
 138                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 139                                         break;
 140                                 }
 141
 142                                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 143                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 144                                 break;
 145                 }
 146
 147                 SI_Host_USBTask(&DigitalCamera_SI_Interface);
 148                 USB_USBTask();
 149         }
 150 }
 151
 152 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 153 void SetupHardware(void)
 154 {
 155         /* Disable watchdog if enabled by bootloader/fuses */
 156         MCUSR &= ~(1 << WDRF);
 157         wdt_disable();
 158
 159         /* Disable clock division */
 160         clock_prescale_set(clock_div_1);
 161
 162         /* Hardware Initialization */
 163         Serial_Init(9600, false);
 164         LEDs_Init();
 165         USB_Init();
 166
 167         /* Create a stdio stream for the serial port for stdin and stdout */
 168         Serial_CreateStream(NULL);
 169 }
 170
 171 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 172  *  starts the library USB task to begin the enumeration and USB management process.
 173  */
 174 void EVENT_USB_Host_DeviceAttached(void)
 175 {
 176         puts_P(PSTR("Device Attached.\r\n"));
 177         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 178 }
 179
 180 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 181  *  stops the library USB task management process.
 182  */
 183 void EVENT_USB_Host_DeviceUnattached(void)
 184 {
 185         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 186         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 187 }
 188
 189 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 190  *  enumerated by the host and is now ready to be used by the application.
 191  */
 192 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 193 {
 194         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 195 }
 196
 197 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 198 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 199 {
 200         USB_Disable();
 201
 202         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 203                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 204
 205         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 206         for(;;);
 207 }
 208
 209 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 210  *  enumerating an attached USB device.
 211  */
 212 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
 213                                             const uint8_t SubErrorCode)
 214 {
 215         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 216                                  " -- Error Code %d\r\n"
 217                                  " -- Sub Error Code %d\r\n"
 218                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 219
 220         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 221 }
 222