95 lines
2.6 KiB
C
95 lines
2.6 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.h>
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#include <stm32f4xx_rcc.h>
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#include <stm32f4xx_syscfg.h>
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#include <stm32f4xx_gpio.h>
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#include <stm32f4xx_exti.h>
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#include <stm32f4xx_tim.h>
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#include <stm32f4xx_pwr.h>
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#include <stm32f4xx_rtc.h>
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#include <stm32f4xx_usart.h>
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#include <stm32f4xx_rng.h>
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#include <usbd_storage_msd.h>
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#include <stm_misc.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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//assert(1 <= n_args && n_args <= 2);
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const pin_obj_t *pin = pin_map_user_obj(args[0]);
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GPIO_TypeDef *port = pin->gpio;
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uint16_t pin_mask = pin->pin_mask;
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if (n_args == 1) {
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// get pin
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if ((port->IDR & pin_mask) != (uint32_t)Bit_RESET) {
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return MP_OBJ_NEW_SMALL_INT(1);
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} else {
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return MP_OBJ_NEW_SMALL_INT(0);
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}
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} else {
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// set pin
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if (rt_is_true(args[1])) {
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// set pin high
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port->BSRRL = pin_mask;
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} else {
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// set pin low
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port->BSRRH = pin_mask;
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}
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return mp_const_none;
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}
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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(mp_obj_t arg_pin, mp_obj_t arg_mode) {
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const pin_obj_t *pin = pin_map_user_obj(arg_pin);
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GPIO_TypeDef *port = pin->gpio;
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uint16_t pin_mask = pin->pin_mask;
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Pin = pin_mask;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
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GPIO_InitStructure.GPIO_PuPd = mp_obj_get_int(arg_mode);
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GPIO_Init(port, &GPIO_InitStructure);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_2(pyb_gpio_input_obj, pyb_gpio_input);
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mp_obj_t pyb_gpio_output(mp_obj_t arg_pin, mp_obj_t arg_mode) {
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const pin_obj_t *pin = pin_map_user_obj(arg_pin);
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GPIO_TypeDef *port = pin->gpio;
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uint16_t pin_mask = pin->pin_mask;
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Pin = pin_mask;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
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GPIO_InitStructure.GPIO_Speed = GPIO_Fast_Speed;
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GPIO_InitStructure.GPIO_OType = mp_obj_get_int(arg_mode);
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
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GPIO_Init(port, &GPIO_InitStructure);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_2(pyb_gpio_output_obj, pyb_gpio_output);
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