Demos/DualRole/ClassDriver/MouseHostDevice/HostFunctions.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  *  Host Mode USB Mouse functionality for the MouseHostDevice demo. This file contains the Host mode
  34  *  USB Mouse related code of the demo and is responsible for all the Host mode Mouse functionality.
  35  */
  36
  37 #include "HostFunctions.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_Host_Interface =
  44         {
  45                 .Config =
  46                         {
  47                                 .DataINPipeNumber       = 1,
  48                                 .DataOUTPipeNumber      = 2,
  49
  50                                 .HIDInterfaceProtocol   = HID_CSCP_MouseBootProtocol,
  51                         },
  52         };
  53
  54
  55 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
  56  *  starts the library USB task to begin the enumeration and USB management process.
  57  */
  58 void EVENT_USB_Host_DeviceAttached(void)
  59 {
  60         puts_P(PSTR("Device Attached.\r\n"));
  61         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  62 }
  63
  64 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
  65  *  stops the library USB task management process.
  66  */
  67 void EVENT_USB_Host_DeviceUnattached(void)
  68 {
  69         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
  70         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  71 }
  72
  73 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
  74  *  enumerated by the host and is now ready to be used by the application.
  75  */
  76 void EVENT_USB_Host_DeviceEnumerationComplete(void)
  77 {
  78         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  79
  80         uint16_t ConfigDescriptorSize;
  81         uint8_t  ConfigDescriptorData[512];
  82
  83         if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
  84                                                sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
  85         {
  86                 printf("Error Retrieving Configuration Descriptor.\r\n");
  87                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  88                 return;
  89         }
  90
  91         if (HID_Host_ConfigurePipes(&Mouse_HID_Host_Interface,
  92                                     ConfigDescriptorSize, ConfigDescriptorData) != HID_ENUMERROR_NoError)
  93         {
  94                 printf("Attached Device Not a Valid Mouse.\r\n");
  95                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  96                 return;
  97         }
  98
  99         if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
 100         {
 101                 printf("Error Setting Device Configuration.\r\n");
 102                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 103                 return;
 104         }
 105
 106         if (HID_Host_SetBootProtocol(&Mouse_HID_Host_Interface) != HOST_SENDCONTROL_Successful)
 107         {
 108                 printf("Could not Set Boot Protocol Mode.\r\n");
 109                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 110                 return;
 111         }
 112
 113         printf("Mouse Enumerated.\r\n");
 114         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 115 }
 116
 117 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 118 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 119 {
 120         USB_Disable();
 121
 122         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 123                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 124
 125         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 126         for(;;);
 127 }
 128
 129 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 130  *  enumerating an attached USB device.
 131  */
 132 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
 133                                             const uint8_t SubErrorCode)
 134 {
 135         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 136                                  " -- Error Code %d\r\n"
 137                                  " -- Sub Error Code %d\r\n"
 138                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 139
 140         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 141 }
 142
 143 /** Host USB management task. This task handles the control of USB Mice while in USB Host mode,
 144  *  setting up the appropriate data pipes and processing reports from the attached device.
 145  */
 146 void MouseHost_Task(void)
 147 {
 148         if (USB_HostState != HOST_STATE_Configured)
 149           return;
 150
 151         if (HID_Host_IsReportReceived(&Mouse_HID_Host_Interface))
 152         {
 153                 uint8_t LEDMask  = LEDS_NO_LEDS;
 154
 155                 USB_MouseReport_Data_t MouseReport;
 156                 HID_Host_ReceiveReport(&Mouse_HID_Host_Interface, &MouseReport);
 157
 158                 printf_P(PSTR("dX:%2d dY:%2d Button:%d\r\n"), MouseReport.X,
 159                                                               MouseReport.Y,
 160                                                               MouseReport.Button);
 161                 if (MouseReport.X > 0)
 162                   LEDMask |= LEDS_LED1;
 163                 else if (MouseReport.X < 0)
 164                   LEDMask |= LEDS_LED2;
 165
 166                 if (MouseReport.Y > 0)
 167                   LEDMask |= LEDS_LED3;
 168                 else if (MouseReport.Y < 0)
 169                   LEDMask |= LEDS_LED4;
 170
 171                 if (MouseReport.Button)
 172                   LEDMask  = LEDS_ALL_LEDS;
 173
 174                 LEDs_SetAllLEDs(LEDMask);
 175         }
 176 }
 177