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/*
* Copyright © 2014 Bdale Garbee <bdale@gag.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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include <ao.h>
uint8_t relay_output;
void
ao_relay_init(void)
{
lpc_scb.sysahbclkctrl |= (1 << LPC_SCB_SYSAHBCLKCTRL_GPIO);
lpc_gpio.dir[RELAY_PORT] |= RELAY_BIT;
}
// switch relay to selected output, turn correct LED on as a side effect
static void
ao_relay_control(uint8_t output)
{
switch (output) {
case 1:
lpc_gpio.pin[RELAY_PORT] |= RELAY_BIT;
ao_led_on(AO_LED_RED);
ao_led_off(AO_LED_GREEN);
break;
default:
lpc_gpio.pin[RELAY_PORT] &= ~RELAY_BIT;
ao_led_off(AO_LED_RED);
ao_led_on(AO_LED_GREEN);
}
}
static void
ao_relay_select(void) __reentrant
{
uint8_t output;
ao_cmd_decimal();
if (ao_cmd_status != ao_cmd_success)
return;
output = ao_cmd_lex_i;
if (output > 1)
printf ("Invalid relay position %u\n", output);
else
ao_relay_control(output);
}
static __code struct ao_cmds ao_relay_cmds[] = {
{ ao_relay_select, "R <output>\0Select relay output" },
{ 0, NULL }
};
void
main(void)
{
ao_clock_init();
ao_task_init();
ao_timer_init();
ao_usb_init();
ao_serial_init();
ao_led_init(LEDS_AVAILABLE);
ao_relay_init();
// initialize to default output
relay_output = 0;
ao_relay_control(relay_output);
ao_cmd_init();
ao_cmd_register(ao_relay_cmds);
ao_start_scheduler();
}
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