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                                     (ConfigDescriptorSize > sizeof(ConfigDescriptorData)))
  84                                 {
  85                                         printf("Error Retrieving Configuration Descriptor.\r\n");
  86                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  87                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  88                                         break;
  89                                 }
  90
  91                                 USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData);
  92
  93                                 if (HID_Host_ConfigurePipes(&Mouse_HID_Interface,
  94                                                             ConfigDescriptorSize, ConfigDescriptorData) != HID_ENUMERROR_NoError)
  95                                 {
  96                                         printf("Attached Device Not a Valid Mouse.\r\n");
  97                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  98                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
  99                                         break;
 100                                 }
 101
 102                                 if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
 103                                 {
 104                                         printf("Error Setting Device Configuration.\r\n");
 105                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 106                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 107                                         break;
 108                                 }
 109
 110                                 printf("Mouse Enumerated.\r\n");
 111                                 USB_HostState = HOST_STATE_Configured;
 112                                 break;
 113                         case HOST_STATE_Configured:
 114                                 break;
 115                 }
 116
 117                 HID_Host_USBTask(&Mouse_HID_Interface);
 118                 USB_USBTask();
 119         }
 120 }
 121
 122 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 123 void SetupHardware(void)
 124 {
 125         /* Disable watchdog if enabled by bootloader/fuses */
 126         MCUSR &= ~(1 << WDRF);
 127         wdt_disable();
 128
 129         /* Disable clock division */
 130         clock_prescale_set(clock_div_1);
 131
 132         /* Hardware Initialization */
 133         SerialStream_Init(9600, false);
 134         LEDs_Init();
 135         USB_Init();
 136 }
 137
 138 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 139  *  starts the library USB task to begin the enumeration and USB management process.
 140  */
 141 void EVENT_USB_DeviceAttached(void)
 142 {
 143         puts_P(PSTR("Device Attached.\r\n"));
 144         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 145 }
 146
 147 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 148  *  stops the library USB task management process.
 149  */
 150 void EVENT_USB_DeviceUnattached(void)
 151 {
 152         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 153         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 154 }
 155
 156 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 157  *  enumerated by the host and is now ready to be used by the application.
 158  */
 159 void EVENT_USB_DeviceEnumerationComplete(void)
 160 {
 161         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 162 }
 163
 164 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 165 void EVENT_USB_HostError(const uint8_t ErrorCode)
 166 {
 167         USB_ShutDown();
 168
 169         puts_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"));
 170         printf_P(PSTR(" -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 171
 172         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 173         for(;;);
 174 }
 175
 176 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 177  *  enumerating an attached USB device.
 178  */
 179 void EVENT_USB_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 180 {
 181         puts_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"));
 182         printf_P(PSTR(" -- Error Code %d\r\n"), ErrorCode);
 183         printf_P(PSTR(" -- Sub Error Code %d\r\n"), SubErrorCode);
 184         printf_P(PSTR(" -- In State %d\r\n" ESC_FG_WHITE), USB_HostState);
 185
 186         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 187 }