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/*
* Copyright © 2012 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; version 2 of the License.
*
* 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"
__pdata uint16_t ao_led_enable;
void
ao_led_on(uint16_t colors)
{
LED_PORT->bsrr = (colors & ao_led_enable);
}
void
ao_led_off(uint16_t colors)
{
LED_PORT->bsrr = (uint32_t) (colors & ao_led_enable) << 16;
}
void
ao_led_set(uint16_t colors)
{
uint16_t on = colors & ao_led_enable;
uint16_t off = ~colors & ao_led_enable;
LED_PORT->bsrr = off << 16 | on;
}
void
ao_led_toggle(uint16_t colors)
{
LED_PORT->odr ^= (colors & ao_led_enable);
}
void
ao_led_for(uint16_t colors, uint16_t ticks) __reentrant
{
ao_led_on(colors);
ao_delay(ticks);
ao_led_off(colors);
}
void
ao_led_init(uint16_t enable)
{
int bit;
stm_rcc.ahbenr |= (1 << LED_PORT_ENABLE);
ao_led_enable = enable;
LED_PORT->odr &= ~enable;
for (bit = 0; bit < 16; bit++) {
if (enable & (1 << bit)) {
stm_moder_set(LED_PORT, bit, STM_MODER_OUTPUT);
stm_otyper_set(LED_PORT, bit, STM_OTYPER_PUSH_PULL);
}
}
}
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