ps2_vusb/main.c

   1 /* Name: main.c
   2  * Project: hid-mouse, a very simple HID example
   3  * Author: Christian Starkjohann
   4  * Creation Date: 2008-04-07
   5  * Tabsize: 4
   6  * Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH
   7  * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
   8  * This Revision: $Id: main.c 790 2010-05-30 21:00:26Z cs $
   9  */
  10 #include <stdint.h>
  11 #include <avr/io.h>
  12 #include <avr/wdt.h>
  13 #include <avr/interrupt.h>  /* for sei() */
  14 #include <avr/pgmspace.h>   /* required by usbdrv.h */
  15 #include <util/delay.h>     /* for _delay_ms() */
  16 #include "usbdrv.h"
  17 #include "usart_print.h"        /* This is also an example for using debug macros */
  18 #include "usb_keycodes.h"
  19 #include "matrix_skel.h"
  20 #include "keymap_skel.h"
  21 #include "mousekey.h"
  22 #include "keyboard.h"
  23 #include "layer.h"
  24 #include "print.h"
  25 #include "debug.h"
  26 #include "sendchar.h"
  27 #include "host.h"
  28 #include "host_vusb.h"
  29 #include "timer.h"
  30
  31 #define DEBUGP_INIT() do { DDRC = 0xFF; } while (0)
  32 #define DEBUGP(x) do { PORTC = x; } while (0)
  33
  34 static uint8_t last_led = 0;
  35 int main(void)
  36 {
  37     DEBUGP_INIT();
  38     wdt_enable(WDTO_1S);
  39     /* Even if you don't use the watchdog, turn it off here. On newer devices,
  40      * the status of the watchdog (on/off, period) is PRESERVED OVER RESET!
  41      */
  42
  43     /* RESET status: all port bits are inputs without pull-up.
  44      * That's the way we need D+ and D-. Therefore we don't need any
  45      * additional hardware initialization.
  46      */
  47     odDebugInit();
  48     usbInit();
  49
  50     print_enable = true;
  51     //debug_enable = true;
  52     timer_init();
  53     matrix_init();
  54
  55     /* enforce re-enumeration, do this while interrupts are disabled! */
  56     usbDeviceDisconnect();
  57     uint8_t i = 0;
  58     while(--i){             /* fake USB disconnect for > 250 ms */
  59         wdt_reset();
  60         _delay_ms(1);
  61     }
  62     usbDeviceConnect();
  63     sei();
  64
  65     uint8_t fn_bits = 0;
  66     while (1) {                /* main event loop */
  67         DEBUGP(0x01);
  68         wdt_reset();
  69         usbPoll();
  70         host_vusb_keyboard_send();
  71
  72         DEBUGP(0x02);
  73         matrix_scan();
  74         fn_bits = 0;
  75         keyboard_swap_report();
  76         keyboard_clear_report();
  77         mousekey_clear_report();
  78         for (int row = 0; row < matrix_rows(); row++) {
  79             for (int col = 0; col < matrix_cols(); col++) {
  80                 if (!matrix_is_on(row, col)) continue;
  81
  82                 uint8_t code = layer_get_keycode(row, col);
  83                 if (code == KB_NO) {
  84                     // do nothing
  85                 }
  86                 else if (IS_MOD(code)) {
  87                     keyboard_add_mod_bit(MOD_BIT(code));
  88                 }
  89                 else if (IS_KEY(code)) {
  90                     keyboard_add_key(code);
  91                 }
  92                 else if (IS_FN(code)) {
  93                     fn_bits |= FN_BIT(code);
  94                 }
  95                 else if (IS_MOUSEKEY(code)) {
  96                     mousekey_decode(code);
  97                 }
  98                 else {
  99                     debug("ignore keycode: "); debug_hex(code); debug("\n");
 100                 }
 101             }
 102         }
 103         DEBUGP(0x03);
 104         layer_switching(fn_bits);
 105         if (matrix_is_modified()) {
 106             keyboard_send();
 107         }
 108         mousekey_send();
 109
 110         if (last_led != host_keyboard_led) {
 111             keyboard_set_led(host_keyboard_led);
 112             last_led = host_keyboard_led;
 113         }
 114     }
 115 }