166 lines
6.1 KiB
C
166 lines
6.1 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
|
|
* Copyright (c) 2019 Lucian Copeland for Adafruit Industries
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include "shared-bindings/digitalio/DigitalInOut.h"
|
|
#include "py/runtime.h"
|
|
#include "supervisor/shared/translate.h"
|
|
|
|
// The HAL is sparse on obtaining register information, so we use the LLs here.
|
|
#if (CPY_STM32H7)
|
|
#include "stm32h7xx_ll_gpio.h"
|
|
#elif (CPY_STM32F7)
|
|
#include "stm32f7xx_ll_gpio.h"
|
|
#elif (CPY_STM32F4)
|
|
#include "stm32f4xx_ll_gpio.h"
|
|
#endif
|
|
|
|
void common_hal_digitalio_digitalinout_never_reset(
|
|
digitalio_digitalinout_obj_t *self) {
|
|
never_reset_pin_number(self->pin->port, self->pin->number);
|
|
}
|
|
|
|
digitalinout_result_t common_hal_digitalio_digitalinout_construct(
|
|
digitalio_digitalinout_obj_t *self, const mcu_pin_obj_t *pin) {
|
|
|
|
claim_pin(pin);
|
|
self->pin = pin;
|
|
|
|
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
|
GPIO_InitStruct.Pin = pin_mask(self->pin->number);
|
|
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
|
|
HAL_GPIO_Init(pin_port(self->pin->port), &GPIO_InitStruct);
|
|
|
|
return DIGITALINOUT_OK;
|
|
}
|
|
|
|
bool common_hal_digitalio_digitalinout_deinited(digitalio_digitalinout_obj_t *self) {
|
|
return self->pin == NULL;
|
|
}
|
|
|
|
void common_hal_digitalio_digitalinout_deinit(digitalio_digitalinout_obj_t *self) {
|
|
if (common_hal_digitalio_digitalinout_deinited(self)) {
|
|
return;
|
|
}
|
|
|
|
reset_pin_number(self->pin->port, self->pin->number);
|
|
self->pin = NULL;
|
|
}
|
|
|
|
void common_hal_digitalio_digitalinout_switch_to_input(
|
|
digitalio_digitalinout_obj_t *self, digitalio_pull_t pull) {
|
|
|
|
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
|
GPIO_InitStruct.Pin = pin_mask(self->pin->number);
|
|
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
|
|
HAL_GPIO_Init(pin_port(self->pin->port), &GPIO_InitStruct);
|
|
|
|
common_hal_digitalio_digitalinout_set_pull(self, pull);
|
|
}
|
|
|
|
void common_hal_digitalio_digitalinout_switch_to_output(
|
|
digitalio_digitalinout_obj_t *self, bool value,
|
|
digitalio_drive_mode_t drive_mode) {
|
|
|
|
common_hal_digitalio_digitalinout_set_drive_mode(self, drive_mode);
|
|
common_hal_digitalio_digitalinout_set_value(self, value);
|
|
}
|
|
|
|
digitalio_direction_t common_hal_digitalio_digitalinout_get_direction(
|
|
digitalio_digitalinout_obj_t *self) {
|
|
|
|
return (LL_GPIO_GetPinMode(pin_port(self->pin->port), pin_mask(self->pin->number))
|
|
== LL_GPIO_MODE_INPUT) ? DIRECTION_INPUT : DIRECTION_OUTPUT;
|
|
}
|
|
|
|
void common_hal_digitalio_digitalinout_set_value(
|
|
digitalio_digitalinout_obj_t *self, bool value) {
|
|
HAL_GPIO_WritePin(pin_port(self->pin->port), pin_mask(self->pin->number), value);
|
|
}
|
|
|
|
bool common_hal_digitalio_digitalinout_get_value(
|
|
digitalio_digitalinout_obj_t *self) {
|
|
return (LL_GPIO_GetPinMode(pin_port(self->pin->port), pin_mask(self->pin->number)) == LL_GPIO_MODE_INPUT)
|
|
? HAL_GPIO_ReadPin(pin_port(self->pin->port), pin_mask(self->pin->number))
|
|
: LL_GPIO_IsOutputPinSet(pin_port(self->pin->port), pin_mask(self->pin->number));
|
|
}
|
|
|
|
void common_hal_digitalio_digitalinout_set_drive_mode(
|
|
digitalio_digitalinout_obj_t *self,
|
|
digitalio_drive_mode_t drive_mode) {
|
|
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
|
GPIO_InitStruct.Pin = pin_mask(self->pin->number);
|
|
GPIO_InitStruct.Mode = (drive_mode == DRIVE_MODE_OPEN_DRAIN ?
|
|
GPIO_MODE_OUTPUT_OD : GPIO_MODE_OUTPUT_PP);
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
|
|
HAL_GPIO_Init(pin_port(self->pin->port), &GPIO_InitStruct);
|
|
}
|
|
|
|
digitalio_drive_mode_t common_hal_digitalio_digitalinout_get_drive_mode(
|
|
digitalio_digitalinout_obj_t *self) {
|
|
|
|
return LL_GPIO_GetPinOutputType(pin_port(self->pin->port), pin_mask(self->pin->number))
|
|
== LL_GPIO_OUTPUT_OPENDRAIN ? DRIVE_MODE_OPEN_DRAIN : DRIVE_MODE_PUSH_PULL;
|
|
}
|
|
|
|
void common_hal_digitalio_digitalinout_set_pull(
|
|
digitalio_digitalinout_obj_t *self, digitalio_pull_t pull) {
|
|
|
|
switch (pull) {
|
|
case PULL_UP:
|
|
LL_GPIO_SetPinPull(pin_port(self->pin->port), pin_mask(self->pin->number),LL_GPIO_PULL_UP);
|
|
break;
|
|
case PULL_DOWN:
|
|
LL_GPIO_SetPinPull(pin_port(self->pin->port), pin_mask(self->pin->number),LL_GPIO_PULL_DOWN);
|
|
break;
|
|
case PULL_NONE:
|
|
LL_GPIO_SetPinPull(pin_port(self->pin->port), pin_mask(self->pin->number),LL_GPIO_PULL_NO);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
digitalio_pull_t common_hal_digitalio_digitalinout_get_pull(
|
|
digitalio_digitalinout_obj_t *self) {
|
|
|
|
switch (LL_GPIO_GetPinPull(pin_port(self->pin->port), pin_mask(self->pin->number))) {
|
|
case LL_GPIO_PULL_UP:
|
|
return PULL_UP;
|
|
case LL_GPIO_PULL_DOWN:
|
|
return PULL_DOWN;
|
|
case LL_GPIO_PULL_NO:
|
|
return PULL_NONE;
|
|
default:
|
|
return PULL_NONE;
|
|
}
|
|
}
|