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
  55
  56 /** Main program entry point. This routine configures the hardware required by the application, then
  57  *  starts the scheduler to run the application tasks.
  58  */
  59 int main(void)
  60 {
  61         SetupHardware();
  62
  63         puts_P(PSTR(ESC_FG_CYAN "Mouse Host Demo running.\r\n" ESC_FG_WHITE));
  64
  65         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  66
  67         for (;;)
  68         {
  69                 switch (USB_HostState)
  70                 {
  71                         case HOST_STATE_Addressed:
  72                                 LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  73
  74                                 uint16_t ConfigDescriptorSize;
  75                                 uint8_t  ConfigDescriptorData[512];
  76
  77                                 if ((USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful) ||
  78                                     (ConfigDescriptorSize > sizeof(ConfigDescriptorData)) ||
  79                                         (USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData)))
  80                                 {
  81                                         printf("Error Retrieving Configuration Descriptor.\r\n");
  82                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  83                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  84                                         break;
  85                                 }
  86
  87                                 if (HID_Host_ConfigurePipes(&Mouse_HID_Interface,
  88                                                             ConfigDescriptorSize, ConfigDescriptorData) != HID_ENUMERROR_NoError)
  89                                 {
  90                                         printf("Attached Device Not a Valid Mouse.\r\n");
  91                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  92                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  93                                         break;
  94                                 }
  95
  96                                 if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
  97                                 {
  98                                         printf("Error Setting Device Configuration.\r\n");
  99                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 100                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 101                                         break;
 102                                 }
 103
 104                                 printf("Mouse Enumerated.\r\n");
 105                                 USB_HostState = HOST_STATE_Configured;
 106                                 break;
 107                         case HOST_STATE_Configured:
 108                                 break;
 109                 }
 110
 111                 HID_Host_USBTask(&Mouse_HID_Interface);
 112                 USB_USBTask();
 113         }
 114 }
 115
 116 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 117 void SetupHardware(void)
 118 {
 119         /* Disable watchdog if enabled by bootloader/fuses */
 120         MCUSR &= ~(1 << WDRF);
 121         wdt_disable();
 122
 123         /* Disable clock division */
 124         clock_prescale_set(clock_div_1);
 125
 126         /* Hardware Initialization */
 127         SerialStream_Init(9600, false);
 128         LEDs_Init();
 129         USB_Init();
 130 }
 131
 132 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 133  *  starts the library USB task to begin the enumeration and USB management process.
 134  */
 135 void EVENT_USB_Host_DeviceAttached(void)
 136 {
 137         puts_P(PSTR("Device Attached.\r\n"));
 138         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 139 }
 140
 141 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 142  *  stops the library USB task management process.
 143  */
 144 void EVENT_USB_Host_DeviceUnattached(void)
 145 {
 146         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 147         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 148 }
 149
 150 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 151  *  enumerated by the host and is now ready to be used by the application.
 152  */
 153 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 154 {
 155         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 156 }
 157
 158 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 159 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 160 {
 161         USB_ShutDown();
 162
 163         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 164                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 165
 166         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 167         for(;;);
 168 }
 169
 170 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 171  *  enumerating an attached USB device.
 172  */
 173 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 174 {
 175         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 176                                  " -- Error Code %d\r\n"
 177                                  " -- Sub Error Code %d\r\n"
 178                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 179
 180         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 181 }