/* $Id$ */ /* * Copyright (c) 2011 Dimitri Sokolyuk * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include "kernel.h" #include "tasks.h" void hsv(uint8_t *, uint8_t *, uint8_t *, uint16_t, uint8_t, uint8_t); void rgb(void *arg) { struct rgbarg *a = (struct rgbarg *)arg; uint16_t i = 0; uint8_t r, g, b, v = 255; #define SCALE 1 cli(); a->m = 255 >> SCALE; sei(); update(0, MSEC(50)); for (;;) { i = (i + 1) % 360; hsv(&r, &g, &b, i, v, v); cli(); a->r = r >> SCALE; a->g = g >> SCALE; a->b = b >> SCALE; v = *a->v >> 2; /* 10bit to 8bit */ sei(); update(MSEC(40), MSEC(50)); } } void pwm(void *arg) { struct pwmarg *a = (struct pwmarg *)arg; uint16_t maxval, on, off; DDRB |= _BV(a->pin); PORTB &= ~_BV(a->pin); #define DL SEC4(5) cli(); maxval = *a->mval; sei(); update(0, DL); for (;;) { cli(); on = *a->value; sei(); if (on) { PORTB |= _BV(a->pin); update(SEC4(on), DL); } off = maxval - on; if (off) { PORTB &= ~_BV(a->pin); update(SEC4(off), DL); } } }