Demos/Host/ClassDriver/MouseHost/MouseHost.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 MouseHost demo. This file contains the main tasks of
  34  *  the demo and is responsible for the initial application hardware configuration.
  35  */
  36
  37 #include "MouseHost.h"
  38
  39 /** LUFA HID Class driver interface configuration and state information. This structure is
  40  *  passed to all HID 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_HID_Host_t Mouse_HID_Interface =
  44         {
  45                 .Config =
  46                         {
  47                                 .DataINPipeNumber       = 1,
  48                                 .DataOUTPipeNumber      = 2,
  49
  50                                 .MatchInterfaceProtocol = true,
  51                                 .HIDInterfaceProtocol   = 0x02,
  52                         },
  53
  54                 .State =
  55                         {
  56                                 // Leave all state values to their defaults
  57                         }
  58         };
  59
  60
  61 /** Main program entry point. This routine configures the hardware required by the application, then
  62  *  starts the scheduler to run the application tasks.
  63  */
  64 int main(void)
  65 {
  66         SetupHardware();
  67
  68         puts_P(PSTR(ESC_FG_CYAN "Mouse Host Demo running.\r\n" ESC_FG_WHITE));
  69
  70         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  71
  72         for (;;)
  73         {
  74                 switch (USB_HostState)
  75                 {
  76                         case HOST_STATE_Addressed:
  77                                 LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  78
  79                                 uint16_t ConfigDescriptorSize;
  80                                 uint8_t  ConfigDescriptorData[512];
  81
  82                                 if (USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful)
  83                                 {
  84                                         printf("Error Retrieving Device Descriptor.\r\n");
  85                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  86                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  87                                         break;
  88                                 }
  89
  90                                 if (ConfigDescriptorSize > 512)
  91                                 {
  92                                         printf("Device Descriptor Too Large To Process.\r\n");
  93                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  94                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  95                                         break;
  96                                 }
  97
  98                                 USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData);
  99
 100                                 if (HID_Host_ConfigurePipes(&Mouse_HID_Interface,
 101                                                             ConfigDescriptorSize, ConfigDescriptorData) != HID_ENUMERROR_NoError)
 102                                 {
 103                                         printf("Attached Device Not a Valid Mouse.\r\n");
 104                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 105                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 106                                         break;
 107                                 }
 108
 109                                 if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
 110                                 {
 111                                         printf("Error Setting Device Configuration.\r\n");
 112                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 113                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 114                                         break;
 115                                 }
 116
 117                                 printf("Mouse Enumerated.\r\n");
 118                                 USB_HostState = HOST_STATE_Configured;
 119                                 break;
 120                         case HOST_STATE_Configured:
 121                                 break;
 122                 }
 123
 124                 HID_Host_USBTask(&Mouse_HID_Interface);
 125                 USB_USBTask();
 126         }
 127 }
 128
 129 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 130 void SetupHardware(void)
 131 {
 132         /* Disable watchdog if enabled by bootloader/fuses */
 133         MCUSR &= ~(1 << WDRF);
 134         wdt_disable();
 135
 136         /* Disable clock division */
 137         clock_prescale_set(clock_div_1);
 138
 139         /* Hardware Initialization */
 140         SerialStream_Init(9600, false);
 141         LEDs_Init();
 142         USB_Init();
 143 }
 144
 145 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 146  *  starts the library USB task to begin the enumeration and USB management process.
 147  */
 148 void EVENT_USB_DeviceAttached(void)
 149 {
 150         puts_P(PSTR("Device Attached.\r\n"));
 151         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 152 }
 153
 154 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 155  *  stops the library USB task management process.
 156  */
 157 void EVENT_USB_DeviceUnattached(void)
 158 {
 159         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 160         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 161 }
 162
 163 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 164  *  enumerated by the host and is now ready to be used by the application.
 165  */
 166 void EVENT_USB_DeviceEnumerationComplete(void)
 167 {
 168         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 169 }
 170
 171 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 172 void EVENT_USB_HostError(const uint8_t ErrorCode)
 173 {
 174         USB_ShutDown();
 175
 176         puts_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"));
 177         printf_P(PSTR(" -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 178
 179         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 180         for(;;);
 181 }
 182
 183 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 184  *  enumerating an attached USB device.
 185  */
 186 void EVENT_USB_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 187 {
 188         puts_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"));
 189         printf_P(PSTR(" -- Error Code %d\r\n"), ErrorCode);
 190         printf_P(PSTR(" -- Sub Error Code %d\r\n"), SubErrorCode);
 191         printf_P(PSTR(" -- In State %d\r\n" ESC_FG_WHITE), USB_HostState);
 192
 193         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 194 }