main_pjrc.c

   1 /* Keyboard example with debug channel, for Teensy USB Development Board
   2  * http://www.pjrc.com/teensy/usb_keyboard.html
   3  * Copyright (c) 2008 PJRC.COM, LLC
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a copy
   6  * of this software and associated documentation files (the "Software"), to deal
   7  * in the Software without restriction, including without limitation the rights
   8  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   9  * copies of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  21  * THE SOFTWARE.
  22  */
  23
  24 #include <stdbool.h>
  25 #include <avr/io.h>
  26 #include <avr/interrupt.h>
  27 #include <util/delay.h>
  28 #include "keyboard.h"
  29 #include "usb.h"
  30 #include "matrix.h"
  31 #include "print.h"
  32 #include "debug.h"
  33 #include "util.h"
  34 #include "jump_bootloader.h"
  35 #ifdef PS2_MOUSE_ENABLE
  36 #   include "ps2_mouse.h"
  37 #endif
  38
  39
  40 #define CPU_PRESCALE(n)    (CLKPR = 0x80, CLKPR = (n))
  41
  42
  43 bool debug_enable = false;
  44 bool debug_matrix = false;
  45 bool debug_keyboard = false;
  46 bool debug_mouse = false;
  47
  48
  49 int main(void)
  50 {
  51     DEBUG_LED_CONFIG;
  52     DEBUG_LED_OFF;
  53
  54     // set for 16 MHz clock
  55     CPU_PRESCALE(0);
  56
  57     // Initialize the USB, and then wait for the host to set configuration.
  58     // If the Teensy is powered without a PC connected to the USB port,
  59     // this will wait forever.
  60     usb_init();
  61     while (!usb_configured()) /* wait */ ;
  62
  63     keyboard_init();
  64     matrix_scan();
  65     if (matrix_key_count() >= 3) {
  66 #ifdef DEBUG_LED
  67         for (int i = 0; i < 6; i++) {
  68             DEBUG_LED_CONFIG;
  69             DEBUG_LED_ON;
  70             _delay_ms(500);
  71             DEBUG_LED_OFF;
  72             _delay_ms(500);
  73         }
  74 #else
  75         _delay_ms(5000);
  76 #endif
  77         print_enable = true;
  78         debug_enable = true;
  79         debug_matrix = true;
  80         debug_keyboard = true;
  81         debug_mouse = true;
  82         print("debug enabled.\n");
  83     }
  84     if (matrix_key_count() >= 4) {
  85         print("jump to bootloader...\n");
  86         _delay_ms(1000);
  87         jump_bootloader(); // not return
  88     }
  89
  90
  91     while (1) {
  92        keyboard_proc();
  93     }
  94 }