73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
// This is a woefully inadequate set of bindings for GPIO control, and
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// needs to be replaced with something much better.
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#include <stdio.h>
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#include <string.h>
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#include <stm32f4xx_hal.h>
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#include "nlr.h"
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#include "misc.h"
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#include "mpconfig.h"
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#include "qstr.h"
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#include "misc.h"
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#include "parse.h"
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#include "obj.h"
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#include "compile.h"
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#include "runtime0.h"
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#include "runtime.h"
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#include "systick.h"
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#include "gpio.h"
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#include "pin.h"
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mp_obj_t pyb_gpio(uint n_args, mp_obj_t *args) {
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const pin_obj_t *pin = pin_map_user_obj(args[0]);
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if (n_args == 1) {
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// get pin
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return MP_OBJ_NEW_SMALL_INT(HAL_GPIO_ReadPin(pin->gpio, pin->pin_mask));
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}
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// set pin
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HAL_GPIO_WritePin(pin->gpio, pin->pin_mask, rt_is_true(args[1]));
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_gpio_obj, 1, 2, pyb_gpio);
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mp_obj_t pyb_gpio_input(uint n_args, mp_obj_t *args) {
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const pin_obj_t *pin = pin_map_user_obj(args[0]);
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uint32_t pull = GPIO_NOPULL;
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if (n_args > 1) {
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pull = mp_obj_get_int(args[1]);
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}
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.Pin = pin->pin_mask;
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GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
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GPIO_InitStructure.Pull = pull;
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HAL_GPIO_Init(pin->gpio, &GPIO_InitStructure);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_gpio_input_obj, 1, 2, pyb_gpio_input);
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mp_obj_t pyb_gpio_output(uint n_args, mp_obj_t *args) {
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const pin_obj_t *pin = pin_map_user_obj(args[0]);
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uint32_t mode = GPIO_MODE_OUTPUT_PP;
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if (n_args > 1) {
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mode = mp_obj_get_int(args[1]) == GPIO_MODE_OUTPUT_OD ?
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GPIO_MODE_OUTPUT_OD: GPIO_MODE_OUTPUT_PP;
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}
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.Pin = pin->pin_mask;
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GPIO_InitStructure.Mode = mode;
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GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
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GPIO_InitStructure.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(pin->gpio, &GPIO_InitStructure);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_gpio_output_obj, 1, 2, pyb_gpio_output);
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