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/*
* Copyright 2012 (C) Christian Franke <nobody at nowhere dot ws>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with This program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <avr/io.h>
#include <stdint.h>
#include <string.h>
#include "pwm.h"
#include "serial.h"
#include "util.h"
#include "shiftbrite.h"
static void command_error(void)
{
serial_send("?\r\n", 3, 1);
}
static void command_success(void)
{
serial_send(":)\r\n", 4, 0);
}
static void handle_immediate(char *buffer, uint16_t len)
{
if (len < sizeof("irrggbb\r") - 1) {
command_error();
return;
}
uint8_t new_red, new_blue, new_green;
if (parse_hex_number(&buffer[1], &new_red)
|| parse_hex_number(&buffer[3], &new_green)
|| parse_hex_number(&buffer[5], &new_blue)) {
command_error();
return;
}
uint8_t sb_no;
if ((len > sizeof("irrggbb\r") - 1)
&& parse_hex_number(&buffer[7], &sb_no)==0
&& sb_no) {
sb_setcolor(sb_no-1, new_red, new_green, new_blue);
command_success();
}
else {
pwm_set_rgb(new_red, new_green, new_blue);
command_success();
}
}
uint16_t serial_rx_cb(char *buffer, uint16_t len)
{
switch (buffer[len - 1]) {
case '\r':
case '\n':
serial_send("\r\n", 2, 0);
break;
default:
serial_send(&buffer[len - 1], 1, 0);
return 0;
}
switch (buffer[0]) {
case 'i':
case 'I':
handle_immediate(buffer, len);
break;
case 'q':
case 'Q':
serial_toggle_verbose();
command_success();
break;
default:
command_error();
}
return len;
}
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