145 lines
4.0 KiB
C
145 lines
4.0 KiB
C
#include <stdio.h>
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#include "Arduino.h"
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#include "py/runtime.h"
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#include "py/mphal.h"
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#include "led.h"
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#include "pin.h"
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#include "genhdr/pins.h"
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typedef struct _pyb_led_obj_t {
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mp_obj_base_t base;
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mp_uint_t led_id;
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const pin_obj_t *led_pin;
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} pyb_led_obj_t;
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STATIC const pyb_led_obj_t pyb_led_obj[] = {
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{{&pyb_led_type}, 1, &MICROPY_HW_LED1},
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#if defined(MICROPY_HW_LED2)
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{{&pyb_led_type}, 2, &MICROPY_HW_LED2},
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#if defined(MICROPY_HW_LED3)
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{{&pyb_led_type}, 3, &MICROPY_HW_LED3},
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#if defined(MICROPY_HW_LED4)
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{{&pyb_led_type}, 4, &MICROPY_HW_LED4},
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#endif
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#endif
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#endif
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};
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#define NUM_LEDS MP_ARRAY_SIZE(pyb_led_obj)
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void led_init(void) {
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/* GPIO structure */
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GPIO_InitTypeDef GPIO_InitStructure;
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/* Configure I/O speed, mode, output type and pull */
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GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_LOW;
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GPIO_InitStructure.Mode = MICROPY_HW_LED_OTYPE;
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GPIO_InitStructure.Pull = GPIO_NOPULL;
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/* Turn off LEDs and initialize */
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for (int led = 0; led < NUM_LEDS; led++) {
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const pin_obj_t *led_pin = pyb_led_obj[led].led_pin;
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MICROPY_HW_LED_OFF(led_pin);
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GPIO_InitStructure.Pin = led_pin->pin_mask;
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HAL_GPIO_Init(led_pin->gpio, &GPIO_InitStructure);
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}
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}
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void led_state(pyb_led_t led, int state) {
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if (led < 1 || led > NUM_LEDS) {
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return;
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}
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const pin_obj_t *led_pin = pyb_led_obj[led - 1].led_pin;
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// printf("led_state(%d,%d)\n", led, state);
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if (state == 0) {
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// turn LED off
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MICROPY_HW_LED_OFF(led_pin);
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} else {
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// turn LED on
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MICROPY_HW_LED_ON(led_pin);
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}
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}
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void led_toggle(pyb_led_t led) {
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if (led < 1 || led > NUM_LEDS) {
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return;
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}
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const pin_obj_t *led_pin = pyb_led_obj[led - 1].led_pin;
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GPIO_TypeDef *gpio = led_pin->gpio;
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// We don't know if we're turning the LED on or off, but we don't really
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// care. Just invert the state.
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if (gpio->PDOR & led_pin->pin_mask) {
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// pin is high, make it low
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gpio->PCOR = led_pin->pin_mask;
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} else {
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// pin is low, make it high
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gpio->PSOR = led_pin->pin_mask;
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}
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}
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/******************************************************************************/
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/* MicroPython bindings */
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void led_obj_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
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pyb_led_obj_t *self = self_in;
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(void)kind;
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mp_printf(print, "<LED %lu>", self->led_id);
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}
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STATIC mp_obj_t led_obj_make_new(const mp_obj_type_t *type, uint n_args, uint n_kw, const mp_obj_t *args) {
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// check arguments
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mp_arg_check_num(n_args, n_kw, 1, 1, false);
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// get led number
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mp_int_t led_id = mp_obj_get_int(args[0]);
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// check led number
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if (!(1 <= led_id && led_id <= NUM_LEDS)) {
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mp_raise_msg_varg(&mp_type_ValueError, MP_ERROR_TEXT("LED %d does not exist"), led_id);
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}
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// return static led object
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return (mp_obj_t)&pyb_led_obj[led_id - 1];
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}
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mp_obj_t led_obj_on(mp_obj_t self_in) {
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pyb_led_obj_t *self = self_in;
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led_state(self->led_id, 1);
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return mp_const_none;
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}
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mp_obj_t led_obj_off(mp_obj_t self_in) {
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pyb_led_obj_t *self = self_in;
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led_state(self->led_id, 0);
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return mp_const_none;
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}
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mp_obj_t led_obj_toggle(mp_obj_t self_in) {
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pyb_led_obj_t *self = self_in;
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led_toggle(self->led_id);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(led_obj_on_obj, led_obj_on);
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(led_obj_off_obj, led_obj_off);
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(led_obj_toggle_obj, led_obj_toggle);
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STATIC const mp_rom_map_elem_t led_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_on), MP_ROM_PTR(&led_obj_on_obj) },
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{ MP_ROM_QSTR(MP_QSTR_off), MP_ROM_PTR(&led_obj_off_obj) },
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{ MP_ROM_QSTR(MP_QSTR_toggle), MP_ROM_PTR(&led_obj_toggle_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(led_locals_dict, led_locals_dict_table);
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MP_DEFINE_CONST_OBJ_TYPE(
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pyb_led_type,
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MP_QSTR_LED,
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MP_TYPE_FLAG_NONE,
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led_obj_make_new,
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print, led_obj_print,
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locals_dict, &led_locals_dict
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);
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