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/*
* Copyright © 2016 Keith Packard <keithp@keithp.com>
*
* 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 2 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.
*/
#include <ao.h>
#include <ao_lisp.h>
static uint16_t blink_delay, blink_running;
static void blink(void) {
blink_running = 1;
while (blink_delay) {
ao_led_on(AO_LED_RED);
ao_delay(blink_delay);
ao_led_off(AO_LED_RED);
ao_delay(blink_delay);
}
blink_running = 0;
ao_wakeup(&blink_running);
ao_exit();
}
struct ao_task blink_task;
static void blink_cmd() {
ao_cmd_decimal();
blink_delay = ao_cmd_lex_i;
if (blink_delay && !blink_running)
ao_add_task(&blink_task, blink, "blink");
if (!blink_delay)
while (blink_running)
ao_sleep(&blink_running);
}
static void lisp_cmd() {
ao_lisp_read_eval_print();
}
static const struct ao_cmds blink_cmds[] = {
{ blink_cmd, "b <delay, 0 off>\0Blink the green LED" },
{ lisp_cmd, "l\0Run lisp interpreter" },
{ 0, 0 }
};
void main(void)
{
ao_led_init(LEDS_AVAILABLE);
ao_clock_init();
ao_task_init();
ao_timer_init();
ao_dma_init();
ao_usb_init();
ao_serial_init();
ao_cmd_init();
ao_cmd_register(blink_cmds);
ao_start_scheduler();
}
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