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// This is a woefully inadequate set of bindings for GPIO control, and
// needs to be replaced with something much better.
#include <stdio.h>
#include <string.h>
#include <stm32f4xx.h>
#include <stm32f4xx_rcc.h>
#include <stm32f4xx_syscfg.h>
#include <stm32f4xx_gpio.h>
#include <stm32f4xx_exti.h>
#include <stm32f4xx_tim.h>
#include <stm32f4xx_pwr.h>
#include <stm32f4xx_rtc.h>
#include <stm32f4xx_usart.h>
#include <stm32f4xx_rng.h>
#include <usbd_storage_msd.h>
#include <stm_misc.h>
#include "nlr.h"
#include "misc.h"
#include "mpconfig.h"
#include "qstr.h"
#include "misc.h"
#include "parse.h"
#include "obj.h"
#include "compile.h"
#include "runtime0.h"
#include "runtime.h"
#include "systick.h"
#include "gpio.h"
#include "pin.h"
mp_obj_t pyb_gpio(uint n_args, mp_obj_t *args) {
//assert(1 <= n_args && n_args <= 2);
const pin_obj_t *pin = pin_map_user_obj(args[0]);
GPIO_TypeDef *port = pin->gpio;
uint16_t pin_mask = pin->pin_mask;
if (n_args == 1) {
// get pin
if ((port->IDR & pin_mask) != (uint32_t)Bit_RESET) {
return MP_OBJ_NEW_SMALL_INT(1);
} else {
return MP_OBJ_NEW_SMALL_INT(0);
}
} else {
// set pin
if (mp_obj_is_true(args[1])) {
// set pin high
port->BSRRL = pin_mask;
} else {
// set pin low
port->BSRRH = pin_mask;
}
return mp_const_none;
}
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_gpio_obj, 1, 2, pyb_gpio);
mp_obj_t pyb_gpio_input(mp_obj_t arg_pin, mp_obj_t arg_mode) {
const pin_obj_t *pin = pin_map_user_obj(arg_pin);
GPIO_TypeDef *port = pin->gpio;
uint16_t pin_mask = pin->pin_mask;
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = pin_mask;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = mp_obj_get_int(arg_mode);
GPIO_Init(port, &GPIO_InitStructure);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_2(pyb_gpio_input_obj, pyb_gpio_input);
mp_obj_t pyb_gpio_output(mp_obj_t arg_pin, mp_obj_t arg_mode) {
const pin_obj_t *pin = pin_map_user_obj(arg_pin);
GPIO_TypeDef *port = pin->gpio;
uint16_t pin_mask = pin->pin_mask;
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = pin_mask;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Fast_Speed;
GPIO_InitStructure.GPIO_OType = mp_obj_get_int(arg_mode);
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(port, &GPIO_InitStructure);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_2(pyb_gpio_output_obj, pyb_gpio_output);
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