2 * Copyright © 2012 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
20 __pdata uint16_t ao_led_enable;
23 ao_led_on(uint16_t colors)
25 LED_PORT->bsrr = (colors & ao_led_enable);
29 ao_led_off(uint16_t colors)
31 LED_PORT->bsrr = (uint32_t) (colors & ao_led_enable) << 16;
35 ao_led_set(uint16_t colors)
37 uint16_t on = colors & ao_led_enable;
38 uint16_t off = ~colors & ao_led_enable;
40 LED_PORT->bsrr = off << 16 | on;
44 ao_led_toggle(uint16_t colors)
46 LED_PORT->odr ^= (colors & ao_led_enable);
50 ao_led_for(uint16_t colors, uint16_t ticks) __reentrant
58 ao_led_init(uint16_t enable)
62 stm_rcc.ahbenr |= (1 << LED_PORT_ENABLE);
63 ao_led_enable = enable;
64 LED_PORT->odr &= ~enable;
65 for (bit = 0; bit < 16; bit++) {
66 if (enable & (1 << bit)) {
67 stm_moder_set(LED_PORT, bit, STM_MODER_OUTPUT);
68 stm_otyper_set(LED_PORT, bit, STM_OTYPER_PUSH_PULL);