Demos/Host/Incomplete/BluetoothHost/BluetoothHost.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  *  Main source file for the BluetoothHost demo. This file contains the main tasks of
  34  *  the demo and is responsible for the initial application hardware configuration.
  35  */
  36
  37 #include "BluetoothHost.h"
  38
  39 /** Bluetooth configuration structure. This structure configures the Bluetooth stack's user alterable settings. */
  40 Bluetooth_Device_t Bluetooth_DeviceConfiguration =
  41         {
  42                 Class:   (DEVICE_CLASS_SERVICE_CAPTURING | DEVICE_CLASS_MAJOR_COMPUTER | DEVICE_CLASS_MINOR_COMPUTER_PALM),
  43                 PINCode: "0000",
  44                 Name:    "LUFA Bluetooth Demo"
  45         };
  46
  47 /** Main program entry point. This routine configures the hardware required by the application, then
  48  *  enters a loop to run the application tasks in sequence.
  49  */
  50 int main(void)
  51 {
  52         SetupHardware();
  53
  54         puts_P(PSTR(ESC_FG_CYAN "Bluetooth Host Demo running.\r\n" ESC_FG_WHITE));
  55
  56         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  57         sei();
  58
  59         for (;;)
  60         {
  61                 RFCOMM_ServiceChannels(SerialChannel_ACL);
  62
  63                 Bluetooth_Host_Task();
  64                 Bluetooth_Stack_USBTask();
  65                 USB_USBTask();
  66         }
  67 }
  68
  69 /** Configures the board hardware and chip peripherals for the demo's functionality. */
  70 void SetupHardware(void)
  71 {
  72         /* Disable watchdog if enabled by bootloader/fuses */
  73         MCUSR &= ~(1 << WDRF);
  74         wdt_disable();
  75
  76         /* Disable clock division */
  77         clock_prescale_set(clock_div_1);
  78
  79         /* Hardware Initialization */
  80         Serial_Init(9600, false);
  81         LEDs_Init();
  82         USB_Init();
  83
  84         /* Create a stdio stream for the serial port for stdin and stdout */
  85         Serial_CreateStream(NULL);
  86 }
  87
  88 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
  89  *  starts the library USB task to begin the enumeration and USB management process.
  90  */
  91 void EVENT_USB_Host_DeviceAttached(void)
  92 {
  93         puts_P(PSTR(ESC_FG_GREEN "Device Attached.\r\n" ESC_FG_WHITE));
  94         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  95 }
  96
  97 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
  98  *  stops the library USB task management process.
  99  */
 100 void EVENT_USB_Host_DeviceUnattached(void)
 101 {
 102         puts_P(PSTR(ESC_FG_GREEN "\r\nDevice Unattached.\r\n" ESC_FG_WHITE));
 103         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 104 }
 105
 106 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 107  *  enumerated by the host and is now ready to be used by the application.
 108  */
 109 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 110 {
 111         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 112 }
 113
 114 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 115 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 116 {
 117         USB_Disable();
 118
 119         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 120                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 121
 122         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 123         for(;;);
 124 }
 125
 126 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 127  *  enumerating an attached USB device.
 128  */
 129 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
 130                                             const uint8_t SubErrorCode)
 131 {
 132         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 133                                  " -- Error Code %d\r\n"
 134                                  " -- Sub Error Code %d\r\n"
 135                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 136
 137         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 138 }
 139
 140 /** Task to set the configuration of the attached device after it has been enumerated. */
 141 void Bluetooth_Host_Task(void)
 142 {
 143         uint8_t ErrorCode;
 144
 145         switch (USB_HostState)
 146         {
 147                 case HOST_STATE_Addressed:
 148                         puts_P(PSTR("Getting Device Data.\r\n"));
 149
 150                         /* Get and process the configuration descriptor data */
 151                         if ((ErrorCode = ProcessDeviceDescriptor()) != SuccessfulDeviceRead)
 152                         {
 153                                 if (ErrorCode == DevControlError)
 154                                   puts_P(PSTR(ESC_FG_RED "Control Error (Get Device).\r\n"));
 155                                 else
 156                                   puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
 157
 158                                 printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
 159
 160                                 /* Indicate error via status LEDs */
 161                                 LEDs_SetAllLEDs(LEDS_LED1);
 162
 163                                 /* Wait until USB device disconnected */
 164                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 165                                 break;
 166                         }
 167
 168                         puts_P(PSTR("Bluetooth Dongle Detected.\r\n"));
 169
 170                         /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
 171                         if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
 172                         {
 173                                 printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
 174                                                          " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
 175
 176                                 /* Indicate error via status LEDs */
 177                                 LEDs_SetAllLEDs(LEDS_LED1);
 178
 179                                 /* Wait until USB device disconnected */
 180                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 181                                 break;
 182                         }
 183
 184                         puts_P(PSTR("Getting Config Data.\r\n"));
 185
 186                         /* Get and process the configuration descriptor data */
 187                         if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
 188                         {
 189                                 if (ErrorCode == ControlError)
 190                                   puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
 191                                 else
 192                                   puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
 193
 194                                 printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
 195
 196                                 /* Indicate error via status LEDs */
 197                                 LEDs_SetAllLEDs(LEDS_LED1);
 198
 199                                 /* Wait until USB device disconnected */
 200                                 USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 201                                 break;
 202                         }
 203
 204                         puts_P(PSTR("Bluetooth Dongle Enumerated.\r\n"));
 205
 206                         /* Initialize the Bluetooth stack */
 207                         Bluetooth_Stack_Init();
 208
 209                         USB_HostState = HOST_STATE_Configured;
 210                         break;
 211         }
 212 }
 213