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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2022 Ibrahim Abdelkader <iabdalkader@openmv.io>
*
* 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 <stdio.h>
#include <string.h>
#include "py/runtime.h"
#include "py/mphal.h"
#if defined(MICROPY_PY_NETWORK_NINAW10) && defined(MICROPY_HW_PIN_EXT_COUNT)
#include "modmachine.h"
#include "machine_pin.h"
#include "nina_wifi_drv.h"
#define NINA_GPIO_INPUT (0x00)
#define NINA_GPIO_OUTPUT (0x01)
#define NINA_GPIO_INPUT_PULLUP (0x02)
#define NINA_GPIO_MODE (0x50)
#define NINA_GPIO_READ (0x53)
#define NINA_GPIO_READ_ANALOG (0x54)
#define NINA_GPIO_WRITE (0x51)
#define NINA_GPIO_IS_INPUT_ONLY(p) ((p >= 3 && p <= 6))
#define NINA_GPIO_IS_ADC_CHANNEL(p) ((p >= 3 && p <= 6))
// This maps logical pin ID (0..MICROPY_HW_PIN_EXT_COUNT) to
// physical pins on the Nina module.
static uint8_t pin_map[MICROPY_HW_PIN_EXT_COUNT] = {
27, // LEDR
25, // LEDG
26, // LEDB
34, // A4
39, // A5
36, // A6
35, // A7
};
// This maps logical pin ID (0..MICROPY_HW_PIN_EXT_COUNT) to
// ADC channel numbers on the Nina module.
static uint8_t adc_map[MICROPY_HW_PIN_EXT_COUNT] = {
-1, // LEDR
-1, // LEDG
-1, // LEDB
6, // A4
3, // A5
0, // A6
7, // A7
};
void machine_pin_ext_init(void) {
nina_init();
}
bool machine_pin_ext_is_adc_channel(const machine_pin_obj_t *self) {
return NINA_GPIO_IS_ADC_CHANNEL(self->id);
}
uint32_t machine_pin_ext_to_adc_channel(const machine_pin_obj_t *self) {
return adc_map[self->id];
}
void machine_pin_ext_set(machine_pin_obj_t *self, bool value) {
if (self->id >= 0 && self->id < MICROPY_HW_PIN_EXT_COUNT) {
uint8_t buf[] = {pin_map[self->id], value};
nina_ioctl(NINA_GPIO_WRITE, sizeof(buf), buf, 0);
}
}
bool machine_pin_ext_get(machine_pin_obj_t *self) {
bool value = false;
if (self->id >= 0 && self->id < MICROPY_HW_PIN_EXT_COUNT) {
uint8_t buf[] = {pin_map[self->id]};
nina_ioctl(NINA_GPIO_READ, sizeof(buf), buf, 0);
value = buf[0];
}
return value;
}
uint16_t machine_pin_ext_read_u16(uint32_t channel) {
uint16_t buf = channel;
nina_ioctl(NINA_GPIO_READ_ANALOG, sizeof(buf), (uint8_t *)&buf, 0);
return buf;
}
void machine_pin_ext_config(machine_pin_obj_t *self, int mode, int value) {
if (mode == MACHINE_PIN_MODE_IN || mode == MACHINE_PIN_MODE_ANALOG) {
mode = NINA_GPIO_INPUT;
self->is_output = false;
} else if (mode == MACHINE_PIN_MODE_OUT) {
mode = NINA_GPIO_OUTPUT;
self->is_output = true;
} else {
mp_raise_ValueError(MP_ERROR_TEXT("only Pin.OUT and Pin.IN are supported for this pin"));
}
if (self->id >= 0 && self->id < MICROPY_HW_PIN_EXT_COUNT) {
uint8_t buf[] = {pin_map[self->id], mode};
if (mode == NINA_GPIO_OUTPUT) {
if (NINA_GPIO_IS_INPUT_ONLY(self->id)) {
mp_raise_ValueError(MP_ERROR_TEXT("only Pin.IN is supported for this pin"));
}
machine_pin_ext_set(self, value);
}
nina_ioctl(NINA_GPIO_MODE, sizeof(buf), buf, 0);
}
}
#endif // defined(MICROPY_PY_NETWORK_NINAW10) && defined(MICROPY_HW_PIN_EXT_COUNT)
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