kopia lustrzana https://github.com/micropython/micropython
132 wiersze
4.2 KiB
C
132 wiersze
4.2 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2022 Ibrahim Abdelkader <iabdalkader@openmv.io>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <string.h>
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#include "py/runtime.h"
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#include "py/mphal.h"
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#if defined(MICROPY_PY_NETWORK_NINAW10) && defined(MICROPY_HW_PIN_EXT_COUNT)
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#include "modmachine.h"
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#include "machine_pin.h"
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#include "nina_wifi_drv.h"
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#define NINA_GPIO_INPUT (0x00)
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#define NINA_GPIO_OUTPUT (0x01)
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#define NINA_GPIO_INPUT_PULLUP (0x02)
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#define NINA_GPIO_MODE (0x50)
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#define NINA_GPIO_READ (0x53)
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#define NINA_GPIO_READ_ANALOG (0x54)
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#define NINA_GPIO_WRITE (0x51)
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#define NINA_GPIO_IS_INPUT_ONLY(p) ((p >= 3 && p <= 6))
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#define NINA_GPIO_IS_ADC_CHANNEL(p) ((p >= 3 && p <= 6))
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// This maps logical pin ID (0..MICROPY_HW_PIN_EXT_COUNT) to
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// physical pins on the Nina module.
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static uint8_t pin_map[MICROPY_HW_PIN_EXT_COUNT] = {
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27, // LEDR
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25, // LEDG
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26, // LEDB
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34, // A4
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39, // A5
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36, // A6
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35, // A7
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};
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// This maps logical pin ID (0..MICROPY_HW_PIN_EXT_COUNT) to
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// ADC channel numbers on the Nina module.
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static uint8_t adc_map[MICROPY_HW_PIN_EXT_COUNT] = {
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-1, // LEDR
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-1, // LEDG
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-1, // LEDB
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6, // A4
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3, // A5
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0, // A6
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7, // A7
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};
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void machine_pin_ext_init(void) {
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nina_init();
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}
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bool machine_pin_ext_is_adc_channel(const machine_pin_obj_t *self) {
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return NINA_GPIO_IS_ADC_CHANNEL(self->id);
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}
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uint32_t machine_pin_ext_to_adc_channel(const machine_pin_obj_t *self) {
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return adc_map[self->id];
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}
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void machine_pin_ext_set(machine_pin_obj_t *self, bool value) {
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if (self->id >= 0 && self->id < MICROPY_HW_PIN_EXT_COUNT) {
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uint8_t buf[] = {pin_map[self->id], value};
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nina_ioctl(NINA_GPIO_WRITE, sizeof(buf), buf, 0);
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}
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}
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bool machine_pin_ext_get(machine_pin_obj_t *self) {
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bool value = false;
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if (self->id >= 0 && self->id < MICROPY_HW_PIN_EXT_COUNT) {
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uint8_t buf[] = {pin_map[self->id]};
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nina_ioctl(NINA_GPIO_READ, sizeof(buf), buf, 0);
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value = buf[0];
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}
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return value;
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}
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uint16_t machine_pin_ext_read_u16(uint32_t channel) {
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uint16_t buf = channel;
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nina_ioctl(NINA_GPIO_READ_ANALOG, sizeof(buf), (uint8_t *)&buf, 0);
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return buf;
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}
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void machine_pin_ext_config(machine_pin_obj_t *self, int mode, int value) {
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if (mode == MACHINE_PIN_MODE_IN || mode == MACHINE_PIN_MODE_ANALOG) {
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mode = NINA_GPIO_INPUT;
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self->is_output = false;
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} else if (mode == MACHINE_PIN_MODE_OUT) {
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mode = NINA_GPIO_OUTPUT;
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self->is_output = true;
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} else {
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mp_raise_ValueError("only Pin.OUT and Pin.IN are supported for this pin");
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}
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if (self->id >= 0 && self->id < MICROPY_HW_PIN_EXT_COUNT) {
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uint8_t buf[] = {pin_map[self->id], mode};
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if (mode == NINA_GPIO_OUTPUT) {
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if (NINA_GPIO_IS_INPUT_ONLY(self->id)) {
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mp_raise_ValueError("only Pin.IN is supported for this pin");
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}
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machine_pin_ext_set(self, value);
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}
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nina_ioctl(NINA_GPIO_MODE, sizeof(buf), buf, 0);
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}
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}
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#endif // defined(MICROPY_PY_NETWORK_NINAW10) && defined(MICROPY_HW_PIN_EXT_COUNT)
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