mirror of
git://projects.qi-hardware.com/wernermisc.git
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153 lines
2.7 KiB
C
153 lines
2.7 KiB
C
/*
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* labsw.c - Lab Switch initialization and main loop
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*
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* Written 2011 by Werner Almesberger
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* Copyright 2011 Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <stdint.h>
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#include "regs.h"
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#include "usb.h"
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#include "config.h"
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#include "io.h"
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#include "labsw/ep0.h"
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int local = 1;
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#define DEBOUNCE_CYCLES 10
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#define IS_ON(ch) (CH##ch##_RELAY || !CH##ch##_OPT)
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#define LED_R_COLOR_R 1
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#define LED_R_COLOR_G 0
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#define LED_R_COLOR_OFF 0
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#define LED_G_COLOR_R 0
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#define LED_G_COLOR_G 1
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#define LED_G_COLOR_OFF 0
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#define LED(ch, color) \
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do { \
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LED_##ch##_R = LED_R_COLOR_##color; \
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LED_##ch##_G = LED_G_COLOR_##color; \
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} while (0)
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#define TURN(ch, on) \
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do { \
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CH##ch##_RELAY = on; \
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CH##ch##_OPT = !on; \
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if (on) \
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LED(CH##ch, R); \
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else \
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LED(CH##ch, G); \
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} while (0)
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static void init_io(void)
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{
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P0SKIP = 0xff;
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P1SKIP = 0xff;
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P2SKIP = 0xff;
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/* @@@ we need this while using the boot loader of cntr */
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P0MDOUT = 0;
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P1MDOUT = 0;
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P2MDOUT = 0;
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LED_MAIN_R_MODE |= 1 << LED_MAIN_R_BIT;
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LED_MAIN_G_MODE |= 1 << LED_MAIN_G_BIT;
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LED_CH1_R_MODE |= 1 << LED_CH1_R_BIT;
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LED_CH1_G_MODE |= 1 << LED_CH1_G_BIT;
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LED_CH2_R_MODE |= 1 << LED_CH2_R_BIT;
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LED_CH2_G_MODE |= 1 << LED_CH2_G_BIT;
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CH1_RELAY = 0;
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CH2_RELAY = 0;
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CH1_RELAY_MODE |= 1 << CH1_RELAY_BIT;
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CH2_RELAY_MODE |= 1 << CH2_RELAY_BIT;
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}
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void main(void)
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{
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int debounce_main = 0, last_main = 0, but_main = 0;
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int debounce_ch1 = 0, last_ch1 = 0, but_ch1 = 0;
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int debounce_ch2 = 0, last_ch2 = 0, but_ch2 = 0;
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init_io();
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usb_init();
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ep0_init();
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LED(MAIN, G);
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TURN(1, 0);
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TURN(2, 0);
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while (1) {
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if (debounce_main)
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debounce_main--;
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else {
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last_main = but_main;
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but_main = !BUT_MAIN;
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if (last_main != but_main)
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debounce_main = DEBOUNCE_CYCLES;
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}
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if (debounce_ch1)
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debounce_ch1--;
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else {
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last_ch1 = but_ch1;
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but_ch1 = !BUT_CH1;
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if (last_ch1 != but_ch1)
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debounce_ch1 = DEBOUNCE_CYCLES;
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}
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if (debounce_ch2)
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debounce_ch2--;
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else {
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last_ch2 = but_ch2;
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but_ch2 = !BUT_CH2;
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if (last_ch2 != but_ch2)
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debounce_ch2 = DEBOUNCE_CYCLES;
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}
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if (but_main && !last_main) {
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if (local) {
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TURN(1, 0);
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TURN(2, 0);
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}
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local = 1;
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}
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if (local) {
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LED(MAIN, G);
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if (IS_ON(1))
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TURN(1, 1);
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else
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TURN(1, 0);
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if (IS_ON(2))
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TURN(2, 1);
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else
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TURN(2, 0);
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}
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if (local) {
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if (but_ch1 && !last_ch1)
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TURN(1, !IS_ON(1));
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if (but_ch2 && !last_ch2)
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TURN(2, !IS_ON(2));
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}
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usb_poll();
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}
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}
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