diff options
Diffstat (limited to 'src/lambdakey-v1.0/ao_lambdakey.c')
| -rw-r--r-- | src/lambdakey-v1.0/ao_lambdakey.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/src/lambdakey-v1.0/ao_lambdakey.c b/src/lambdakey-v1.0/ao_lambdakey.c new file mode 100644 index 00000000..6ac78717 --- /dev/null +++ b/src/lambdakey-v1.0/ao_lambdakey.c @@ -0,0 +1,70 @@ +/* + * 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(); +} + + |