main_pjrc.c

   1 /* 2010/08/23 noname
   2  * keyboard firmware based on PJRC USB keyboard example
   3  */
   4 /* Keyboard example with debug channel, for Teensy USB Development Board
   5  * http://www.pjrc.com/teensy/usb_keyboard.html
   6  * Copyright (c) 2008 PJRC.COM, LLC
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a copy
   9  * of this software and associated documentation files (the "Software"), to deal
  10  * in the Software without restriction, including without limitation the rights
  11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12  * copies of the Software, and to permit persons to whom the Software is
  13  * furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included in
  16  * all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24  * THE SOFTWARE.
  25  */
  26
  27 #include <stdbool.h>
  28 #include <avr/io.h>
  29 #include <avr/interrupt.h>
  30 #include <util/delay.h>
  31 #include "keyboard.h"
  32 #include "usb.h"
  33 #include "matrix.h"
  34 #include "print.h"
  35 #include "debug.h"
  36 #include "util.h"
  37 #include "jump_bootloader.h"
  38 #ifdef PS2_MOUSE_ENABLE
  39 #   include "ps2_mouse.h"
  40 #endif
  41
  42
  43 #define CPU_PRESCALE(n)    (CLKPR = 0x80, CLKPR = (n))
  44
  45
  46 bool debug_enable = false;
  47 bool debug_matrix = false;
  48 bool debug_keyboard = false;
  49 bool debug_mouse = false;
  50
  51
  52 int main(void)
  53 {
  54     DEBUG_LED_CONFIG;
  55     DEBUG_LED_OFF;
  56
  57     // set for 16 MHz clock
  58     CPU_PRESCALE(0);
  59
  60     // Initialize the USB, and then wait for the host to set configuration.
  61     // If the Teensy is powered without a PC connected to the USB port,
  62     // this will wait forever.
  63     usb_init();
  64     while (!usb_configured()) /* wait */ ;
  65
  66     keyboard_init();
  67     matrix_scan();
  68     if (matrix_key_count() >= 3) {
  69 #ifdef DEBUG_LED
  70         for (int i = 0; i < 6; i++) {
  71             DEBUG_LED_CONFIG;
  72             DEBUG_LED_ON;
  73             _delay_ms(500);
  74             DEBUG_LED_OFF;
  75             _delay_ms(500);
  76         }
  77 #else
  78         _delay_ms(5000);
  79 #endif
  80         print_enable = true;
  81         debug_enable = true;
  82         debug_matrix = true;
  83         debug_keyboard = true;
  84         debug_mouse = true;
  85         print("debug enabled.\n");
  86     }
  87     if (matrix_key_count() >= 4) {
  88         print("jump to bootloader...\n");
  89         _delay_ms(1000);
  90         jump_bootloader(); // not return
  91     }
  92
  93
  94     while (1) {
  95        keyboard_proc();
  96     }
  97 }