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