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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2020 Philipp Ebensberger
*
* 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.
*/
#ifndef MICROPY_INCLUDED_MIMXRT_PIN_H
#define MICROPY_INCLUDED_MIMXRT_PIN_H
#include "fsl_gpio.h"
#include "py/obj.h"
enum {
PIN_MODE_IN = 0,
PIN_MODE_OUT,
PIN_MODE_ALT,
};
enum {
PIN_AF_MODE_ALT1 = 1,
PIN_AF_MODE_ALT2,
PIN_AF_MODE_ALT3,
PIN_AF_MODE_ALT4,
PIN_AF_MODE_ALT5,
PIN_AF_MODE_ALT6,
PIN_AF_MODE_ALT7,
PIN_AF_MODE_ALT8,
};
typedef struct {
mp_obj_base_t base;
qstr name; // port name
uint32_t af_mode; // alternate function
void *instance; // pointer to peripheral instance for alternate function
uint32_t pad_config; // pad configuration for alternate function
} pin_af_obj_t;
typedef struct {
mp_obj_base_t base;
qstr name; // pad name
GPIO_Type *gpio; // gpio instance for pin
uint32_t pin; // pin number
uint32_t muxRegister;
uint32_t configRegister;
uint32_t mode; // current pin mode
uint32_t af_mode; // current alternate function mode
size_t af_list_len; // length of available alternate functions list
const pin_af_obj_t *af_list; // pointer tolist with alternate functions
} pin_obj_t;
extern const mp_obj_type_t pin_type;
extern const mp_obj_type_t pin_af_type;
#define PIN_AF(_name, _af_mode, _instance, _pad_config) \
{ \
.base = { &pin_af_type }, \
.name = MP_QSTR_##_name, \
.af_mode = (uint32_t)(_af_mode), \
.instance = (void *)(_instance), \
.pad_config = (uint32_t)(_pad_config), \
} \
#define PIN(_name, _gpio, _pin, _af_list) \
{ \
.base = { &pin_type }, \
.name = MP_QSTR_##_name, \
.gpio = (_gpio), \
.pin = (uint32_t)(_pin), \
.muxRegister = (uint32_t)&(IOMUXC->SW_MUX_CTL_PAD[kIOMUXC_SW_MUX_CTL_PAD_##_name]), \
.configRegister = (uint32_t)&(IOMUXC->SW_PAD_CTL_PAD[kIOMUXC_SW_PAD_CTL_PAD_##_name]), \
.mode = PIN_MODE_IN, \
.af_mode = PIN_AF_MODE_ALT5, \
.af_list_len = (size_t)(sizeof((_af_list)) / sizeof(pin_af_obj_t)), \
.af_list = (_af_list), \
} \
// Include board specific pins
#include "pins.h"
#endif // MICROPY_INCLUDED_MIMXRT_PIN_H
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