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