zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
/*
|
2017-06-30 01:22:17 -06:00
|
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
*
|
|
|
|
* The MIT License (MIT)
|
|
|
|
*
|
|
|
|
* Copyright (c) 2013, 2014, 2015 Damien P. George
|
|
|
|
* Copyright (c) 2016 Linaro Limited
|
|
|
|
*
|
|
|
|
* 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
|
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|
|
* THE SOFTWARE.
|
|
|
|
*/
|
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|
|
#include <stdio.h>
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <string.h>
|
|
|
|
|
|
|
|
#include <zephyr.h>
|
|
|
|
#include <gpio.h>
|
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|
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|
|
#include "py/runtime.h"
|
|
|
|
#include "py/gc.h"
|
|
|
|
#include "py/mphal.h"
|
|
|
|
#include "modmachine.h"
|
|
|
|
|
|
|
|
const mp_obj_base_t machine_pin_obj_template = {&machine_pin_type};
|
|
|
|
|
|
|
|
STATIC void machine_pin_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
|
|
|
|
machine_pin_obj_t *self = self_in;
|
|
|
|
mp_printf(print, "<Pin %p %d>", self->port, self->pin);
|
|
|
|
}
|
|
|
|
|
|
|
|
// pin.init(mode, pull=None, *, value)
|
2017-08-29 18:59:58 -06:00
|
|
|
STATIC mp_obj_t machine_pin_obj_init_helper(machine_pin_obj_t *self, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
enum { ARG_mode, ARG_pull, ARG_value };
|
|
|
|
static const mp_arg_t allowed_args[] = {
|
|
|
|
{ MP_QSTR_mode, MP_ARG_REQUIRED | MP_ARG_INT },
|
|
|
|
{ MP_QSTR_pull, MP_ARG_OBJ, {.u_obj = mp_const_none}},
|
|
|
|
{ MP_QSTR_value, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL}},
|
|
|
|
};
|
|
|
|
|
|
|
|
// parse args
|
|
|
|
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
|
|
|
|
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
|
|
|
|
|
|
|
|
// get io mode
|
|
|
|
uint mode = args[ARG_mode].u_int;
|
|
|
|
|
|
|
|
// get pull mode
|
|
|
|
uint pull = GPIO_PUD_NORMAL;
|
|
|
|
if (args[ARG_pull].u_obj != mp_const_none) {
|
|
|
|
pull = mp_obj_get_int(args[ARG_pull].u_obj);
|
|
|
|
}
|
|
|
|
|
|
|
|
int ret = gpio_pin_configure(self->port, self->pin, mode | pull);
|
|
|
|
if (ret) {
|
|
|
|
mp_raise_ValueError("invalid pin");
|
|
|
|
}
|
|
|
|
|
|
|
|
// get initial value
|
|
|
|
if (args[ARG_value].u_obj != MP_OBJ_NULL) {
|
|
|
|
(void)gpio_pin_write(self->port, self->pin, mp_obj_is_true(args[ARG_value].u_obj));
|
|
|
|
}
|
|
|
|
|
|
|
|
return mp_const_none;
|
|
|
|
}
|
|
|
|
|
|
|
|
// constructor(drv_name, pin, ...)
|
2017-04-08 05:27:36 -06:00
|
|
|
mp_obj_t mp_pin_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
|
|
|
|
|
|
|
|
// get the wanted port
|
|
|
|
if (!MP_OBJ_IS_TYPE(args[0], &mp_type_tuple)) {
|
|
|
|
mp_raise_ValueError("Pin id must be tuple of (\"GPIO_x\", pin#)");
|
|
|
|
}
|
|
|
|
mp_obj_t *items;
|
|
|
|
mp_obj_get_array_fixed_n(args[0], 2, &items);
|
|
|
|
const char *drv_name = mp_obj_str_get_str(items[0]);
|
|
|
|
int wanted_pin = mp_obj_get_int(items[1]);
|
|
|
|
struct device *wanted_port = device_get_binding(drv_name);
|
|
|
|
if (!wanted_port) {
|
|
|
|
mp_raise_ValueError("invalid port");
|
|
|
|
}
|
|
|
|
|
|
|
|
machine_pin_obj_t *pin = m_new_obj(machine_pin_obj_t);
|
|
|
|
pin->base = machine_pin_obj_template;
|
|
|
|
pin->port = wanted_port;
|
|
|
|
pin->pin = wanted_pin;
|
|
|
|
|
|
|
|
if (n_args > 1 || n_kw > 0) {
|
|
|
|
// pin mode given, so configure this GPIO
|
|
|
|
mp_map_t kw_args;
|
|
|
|
mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);
|
|
|
|
machine_pin_obj_init_helper(pin, n_args - 1, args + 1, &kw_args);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (mp_obj_t)pin;
|
|
|
|
}
|
|
|
|
|
|
|
|
// fast method for getting/setting pin value
|
|
|
|
STATIC mp_obj_t machine_pin_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
|
|
|
|
mp_arg_check_num(n_args, n_kw, 0, 1, false);
|
|
|
|
machine_pin_obj_t *self = self_in;
|
|
|
|
if (n_args == 0) {
|
2017-06-10 10:40:31 -06:00
|
|
|
u32_t pin_val;
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
(void)gpio_pin_read(self->port, self->pin, &pin_val);
|
|
|
|
return MP_OBJ_NEW_SMALL_INT(pin_val);
|
|
|
|
} else {
|
|
|
|
(void)gpio_pin_write(self->port, self->pin, mp_obj_is_true(args[0]));
|
|
|
|
return mp_const_none;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// pin.init(mode, pull)
|
|
|
|
STATIC mp_obj_t machine_pin_obj_init(size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
|
|
|
|
return machine_pin_obj_init_helper(args[0], n_args - 1, args + 1, kw_args);
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_KW(machine_pin_init_obj, 1, machine_pin_obj_init);
|
|
|
|
|
|
|
|
// pin.value([value])
|
|
|
|
STATIC mp_obj_t machine_pin_value(size_t n_args, const mp_obj_t *args) {
|
|
|
|
return machine_pin_call(args[0], n_args - 1, 0, args + 1);
|
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_pin_value_obj, 1, 2, machine_pin_value);
|
|
|
|
|
2017-04-16 02:14:48 -06:00
|
|
|
STATIC mp_obj_t machine_pin_off(mp_obj_t self_in) {
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
machine_pin_obj_t *self = self_in;
|
|
|
|
(void)gpio_pin_write(self->port, self->pin, 0);
|
|
|
|
return mp_const_none;
|
|
|
|
}
|
2017-04-16 02:14:48 -06:00
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_pin_off_obj, machine_pin_off);
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
|
2017-04-16 02:14:48 -06:00
|
|
|
STATIC mp_obj_t machine_pin_on(mp_obj_t self_in) {
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
machine_pin_obj_t *self = self_in;
|
|
|
|
(void)gpio_pin_write(self->port, self->pin, 1);
|
|
|
|
return mp_const_none;
|
|
|
|
}
|
2017-04-16 02:14:48 -06:00
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_pin_on_obj, machine_pin_on);
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
|
2017-04-08 05:27:36 -06:00
|
|
|
STATIC mp_uint_t machine_pin_ioctl(mp_obj_t self_in, mp_uint_t request, uintptr_t arg, int *errcode) {
|
|
|
|
(void)errcode;
|
|
|
|
machine_pin_obj_t *self = self_in;
|
|
|
|
|
|
|
|
switch (request) {
|
|
|
|
case MP_PIN_READ: {
|
2017-06-10 10:40:31 -06:00
|
|
|
u32_t pin_val;
|
2017-04-08 05:27:36 -06:00
|
|
|
gpio_pin_read(self->port, self->pin, &pin_val);
|
|
|
|
return pin_val;
|
|
|
|
}
|
|
|
|
case MP_PIN_WRITE: {
|
|
|
|
gpio_pin_write(self->port, self->pin, arg);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2017-08-21 05:34:23 -06:00
|
|
|
STATIC const mp_rom_map_elem_t machine_pin_locals_dict_table[] = {
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
// instance methods
|
2017-08-21 05:34:23 -06:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&machine_pin_init_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_value), MP_ROM_PTR(&machine_pin_value_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_off), MP_ROM_PTR(&machine_pin_off_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_on), MP_ROM_PTR(&machine_pin_on_obj) },
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
|
|
|
|
// class constants
|
2017-08-21 05:34:23 -06:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_IN), MP_ROM_INT(GPIO_DIR_IN) },
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{ MP_ROM_QSTR(MP_QSTR_OUT), MP_ROM_INT(GPIO_DIR_OUT) },
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{ MP_ROM_QSTR(MP_QSTR_PULL_UP), MP_ROM_INT(GPIO_PUD_PULL_UP) },
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{ MP_ROM_QSTR(MP_QSTR_PULL_DOWN), MP_ROM_INT(GPIO_PUD_PULL_DOWN) },
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
};
|
|
|
|
|
|
|
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STATIC MP_DEFINE_CONST_DICT(machine_pin_locals_dict, machine_pin_locals_dict_table);
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2017-04-08 05:27:36 -06:00
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STATIC const mp_pin_p_t machine_pin_pin_p = {
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|
|
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.ioctl = machine_pin_ioctl,
|
|
|
|
};
|
|
|
|
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
const mp_obj_type_t machine_pin_type = {
|
|
|
|
{ &mp_type_type },
|
|
|
|
.name = MP_QSTR_Pin,
|
|
|
|
.print = machine_pin_print,
|
2017-04-08 05:27:36 -06:00
|
|
|
.make_new = mp_pin_make_new,
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
.call = machine_pin_call,
|
2017-04-08 05:27:36 -06:00
|
|
|
.protocol = &machine_pin_pin_p,
|
zephyr: Initial implementation of machine.Pin.
The integration with Zephyr is fairly clean but as MicroPython Hardware API
requires pin ID to be a single value, but Zephyr operates GPIO in terms of
ports and pins, not just pins, a "hierarchical" ID is required, using tuple
of (port, pin). Port is a string, effectively a device name of a GPIO port,
per Zephyr conventions these are "GPIO_0", "GPIO_1", etc.; pin is integer
number of pin with the port (supposed to be in range 0-31).
Example of pin initialization:
pin = Pin(("GPIO_1", 21), Pin.OUT)
(an LED on FRDM-K64F's Port B, Pin 21).
There is support for in/out pins and pull up/pull down but currently
there is no interrupt support.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2016-09-28 15:22:42 -06:00
|
|
|
.locals_dict = (mp_obj_t)&machine_pin_locals_dict,
|
|
|
|
};
|