2014-05-03 22:27:38 +00:00
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/*
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* This file is part of the Micro Python 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) 2013, 2014 Damien P. George
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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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2014-03-13 01:06:26 +00:00
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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2015-01-01 21:06:20 +00:00
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#include "py/nlr.h"
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#include "py/runtime.h"
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2015-10-30 23:03:58 +00:00
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#include "py/mphal.h"
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2015-01-01 21:13:30 +00:00
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#include "pin.h"
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2014-03-13 01:06:26 +00:00
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2014-04-29 21:55:34 +00:00
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/// \moduleref pyb
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/// \class Pin - control I/O pins
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///
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/// A pin is the basic object to control I/O pins. It has methods to set
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/// the mode of the pin (input, output, etc) and methods to get and set the
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/// digital logic level. For analog control of a pin, see the ADC class.
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///
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/// Usage Model:
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///
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/// All Board Pins are predefined as pyb.Pin.board.Name
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///
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/// x1_pin = pyb.Pin.board.X1
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///
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/// g = pyb.Pin(pyb.Pin.board.X1, pyb.Pin.IN)
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///
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/// CPU pins which correspond to the board pins are available
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/// as `pyb.cpu.Name`. For the CPU pins, the names are the port letter
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/// followed by the pin number. On the PYBv1.0, `pyb.Pin.board.X1` and
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/// `pyb.Pin.cpu.B6` are the same pin.
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///
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/// You can also use strings:
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///
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/// g = pyb.Pin('X1', pyb.Pin.OUT_PP)
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///
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/// Users can add their own names:
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///
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2014-07-22 14:57:36 +00:00
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/// MyMapperDict = { 'LeftMotorDir' : pyb.Pin.cpu.C12 }
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/// pyb.Pin.dict(MyMapperDict)
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2014-04-29 21:55:34 +00:00
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/// g = pyb.Pin("LeftMotorDir", pyb.Pin.OUT_OD)
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///
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/// and can query mappings
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///
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/// pin = pyb.Pin("LeftMotorDir")
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///
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/// Users can also add their own mapping function:
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///
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/// def MyMapper(pin_name):
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/// if pin_name == "LeftMotorDir":
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/// return pyb.Pin.cpu.A0
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///
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/// pyb.Pin.mapper(MyMapper)
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///
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/// So, if you were to call: `pyb.Pin("LeftMotorDir", pyb.Pin.OUT_PP)`
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/// then `"LeftMotorDir"` is passed directly to the mapper function.
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///
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/// To summarise, the following order determines how things get mapped into
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/// an ordinal pin number:
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///
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/// 1. Directly specify a pin object
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/// 2. User supplied mapping function
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/// 3. User supplied mapping (object must be usable as a dictionary key)
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/// 4. Supply a string which matches a board pin
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/// 5. Supply a string which matches a CPU port/pin
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///
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/// You can set `pyb.Pin.debug(True)` to get some debug information about
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/// how a particular object gets mapped to a pin.
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2014-04-18 21:38:09 +00:00
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// Pin class variables
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STATIC bool pin_class_debug;
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2014-08-04 10:09:51 +00:00
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void pin_init0(void) {
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2015-01-07 23:38:50 +00:00
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MP_STATE_PORT(pin_class_mapper) = mp_const_none;
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MP_STATE_PORT(pin_class_map_dict) = mp_const_none;
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2014-04-18 21:38:09 +00:00
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pin_class_debug = false;
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}
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// C API used to convert a user-supplied pin name into an ordinal pin number.
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const pin_obj_t *pin_find(mp_obj_t user_obj) {
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const pin_obj_t *pin_obj;
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// If a pin was provided, then use it
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if (MP_OBJ_IS_TYPE(user_obj, &pin_type)) {
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pin_obj = user_obj;
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if (pin_class_debug) {
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printf("Pin map passed pin ");
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mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
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printf("\n");
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}
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return pin_obj;
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}
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2015-01-07 23:38:50 +00:00
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if (MP_STATE_PORT(pin_class_mapper) != mp_const_none) {
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pin_obj = mp_call_function_1(MP_STATE_PORT(pin_class_mapper), user_obj);
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2014-04-18 21:38:09 +00:00
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if (pin_obj != mp_const_none) {
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if (!MP_OBJ_IS_TYPE(pin_obj, &pin_type)) {
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nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, "Pin.mapper didn't return a Pin object"));
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}
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if (pin_class_debug) {
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printf("Pin.mapper maps ");
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mp_obj_print(user_obj, PRINT_REPR);
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printf(" to ");
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mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
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printf("\n");
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}
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return pin_obj;
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}
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// The pin mapping function returned mp_const_none, fall through to
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// other lookup methods.
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}
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2015-01-07 23:38:50 +00:00
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if (MP_STATE_PORT(pin_class_map_dict) != mp_const_none) {
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mp_map_t *pin_map_map = mp_obj_dict_get_map(MP_STATE_PORT(pin_class_map_dict));
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2014-04-18 21:38:09 +00:00
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mp_map_elem_t *elem = mp_map_lookup(pin_map_map, user_obj, MP_MAP_LOOKUP);
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if (elem != NULL && elem->value != NULL) {
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pin_obj = elem->value;
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if (pin_class_debug) {
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printf("Pin.map_dict maps ");
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mp_obj_print(user_obj, PRINT_REPR);
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printf(" to ");
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mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
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printf("\n");
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}
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return pin_obj;
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}
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}
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// See if the pin name matches a board pin
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2014-07-22 14:57:36 +00:00
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pin_obj = pin_find_named_pin(&pin_board_pins_locals_dict, user_obj);
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2014-04-18 21:38:09 +00:00
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if (pin_obj) {
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if (pin_class_debug) {
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printf("Pin.board maps ");
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mp_obj_print(user_obj, PRINT_REPR);
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printf(" to ");
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mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
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printf("\n");
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}
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return pin_obj;
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}
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// See if the pin name matches a cpu pin
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2014-07-22 14:57:36 +00:00
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pin_obj = pin_find_named_pin(&pin_cpu_pins_locals_dict, user_obj);
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2014-04-18 21:38:09 +00:00
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if (pin_obj) {
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if (pin_class_debug) {
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printf("Pin.cpu maps ");
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mp_obj_print(user_obj, PRINT_REPR);
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printf(" to ");
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mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
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printf("\n");
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}
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return pin_obj;
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}
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2014-07-22 14:57:36 +00:00
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "pin '%s' not a valid pin identifier", mp_obj_str_get_str(user_obj)));
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2014-04-18 21:38:09 +00:00
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}
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2014-04-29 21:55:34 +00:00
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/// \method __str__()
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/// Return a string describing the pin object.
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2015-04-09 22:56:15 +00:00
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STATIC void pin_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
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2014-03-13 01:06:26 +00:00
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pin_obj_t *self = self_in;
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2014-07-22 14:57:36 +00:00
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2014-08-09 08:19:37 +00:00
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// pin name
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2015-04-16 17:40:06 +00:00
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mp_printf(print, "Pin(Pin.cpu.%q, mode=Pin.", self->name);
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2014-07-22 14:57:36 +00:00
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uint32_t mode = pin_get_mode(self);
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2014-08-09 08:19:37 +00:00
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2014-07-22 14:57:36 +00:00
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if (mode == GPIO_MODE_ANALOG) {
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2014-08-09 08:19:37 +00:00
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// analog
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2015-04-09 22:56:15 +00:00
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mp_print_str(print, "ANALOG)");
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2014-08-09 08:19:37 +00:00
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2014-07-22 14:57:36 +00:00
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} else {
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2014-08-09 08:19:37 +00:00
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// IO mode
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bool af = false;
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qstr mode_qst;
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2014-07-22 14:57:36 +00:00
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if (mode == GPIO_MODE_INPUT) {
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2014-08-09 08:19:37 +00:00
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mode_qst = MP_QSTR_IN;
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} else if (mode == GPIO_MODE_OUTPUT_PP) {
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mode_qst = MP_QSTR_OUT_PP;
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} else if (mode == GPIO_MODE_OUTPUT_OD) {
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mode_qst = MP_QSTR_OUT_OD;
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2014-07-22 14:57:36 +00:00
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} else {
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2014-08-09 08:19:37 +00:00
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af = true;
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2014-07-22 14:57:36 +00:00
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if (mode == GPIO_MODE_AF_PP) {
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2014-08-09 08:19:37 +00:00
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mode_qst = MP_QSTR_AF_PP;
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2014-07-22 14:57:36 +00:00
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} else {
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2014-08-09 08:19:37 +00:00
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mode_qst = MP_QSTR_AF_OD;
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2014-07-22 14:57:36 +00:00
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}
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2014-08-09 08:19:37 +00:00
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}
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2015-04-09 22:56:15 +00:00
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mp_print_str(print, qstr_str(mode_qst));
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2014-08-09 08:19:37 +00:00
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// pull mode
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qstr pull_qst = MP_QSTR_NULL;
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uint32_t pull = pin_get_pull(self);
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if (pull == GPIO_PULLUP) {
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pull_qst = MP_QSTR_PULL_UP;
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} else if (pull == GPIO_PULLDOWN) {
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pull_qst = MP_QSTR_PULL_DOWN;
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}
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if (pull_qst != MP_QSTR_NULL) {
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2015-04-16 17:40:06 +00:00
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mp_printf(print, ", pull=Pin.%q", pull_qst);
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2014-08-09 08:19:37 +00:00
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}
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// AF mode
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if (af) {
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2014-07-22 14:57:36 +00:00
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mp_uint_t af_idx = pin_get_af(self);
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2014-08-09 08:19:37 +00:00
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const pin_af_obj_t *af_obj = pin_find_af_by_index(self, af_idx);
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if (af_obj == NULL) {
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2015-04-09 22:56:15 +00:00
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mp_printf(print, ", af=%d)", af_idx);
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2014-07-22 14:57:36 +00:00
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} else {
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2015-04-16 17:40:06 +00:00
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mp_printf(print, ", af=Pin.%q)", af_obj->name);
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2014-07-22 14:57:36 +00:00
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}
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2014-08-09 08:19:37 +00:00
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} else {
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2015-04-09 22:56:15 +00:00
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mp_print_str(print, ")");
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2014-07-22 14:57:36 +00:00
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}
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}
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2014-03-13 01:06:26 +00:00
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}
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2014-08-29 23:35:11 +00:00
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STATIC mp_obj_t pin_obj_init_helper(const pin_obj_t *pin, mp_uint_t n_args, const mp_obj_t *args, mp_map_t *kw_args);
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2014-04-19 01:17:57 +00:00
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2014-04-29 21:55:34 +00:00
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/// \classmethod \constructor(id, ...)
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/// Create a new Pin object associated with the id. If additional arguments are given,
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/// they are used to initialise the pin. See `init`.
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2016-01-03 15:55:55 +00:00
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STATIC mp_obj_t pin_make_new(const mp_obj_type_t *type, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
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2014-07-22 14:57:36 +00:00
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mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
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2014-04-18 21:38:09 +00:00
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// Run an argument through the mapper and return the result.
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const pin_obj_t *pin = pin_find(args[0]);
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2014-07-22 14:57:36 +00:00
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if (n_args > 1 || n_kw > 0) {
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2014-04-18 21:38:09 +00:00
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// pin mode given, so configure this GPIO
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2014-07-22 14:57:36 +00:00
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mp_map_t kw_args;
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mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);
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pin_obj_init_helper(pin, n_args - 1, args + 1, &kw_args);
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2014-04-18 21:38:09 +00:00
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}
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return (mp_obj_t)pin;
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}
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2015-10-19 21:48:21 +00:00
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// fast method for getting/setting pin value
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STATIC mp_obj_t pin_call(mp_obj_t self_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
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mp_arg_check_num(n_args, n_kw, 0, 1, false);
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pin_obj_t *self = self_in;
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if (n_args == 0) {
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// get pin
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return MP_OBJ_NEW_SMALL_INT(GPIO_read_pin(self->gpio, self->pin));
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} else {
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// set pin
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if (mp_obj_is_true(args[0])) {
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GPIO_set_pin(self->gpio, self->pin_mask);
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} else {
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GPIO_clear_pin(self->gpio, self->pin_mask);
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}
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return mp_const_none;
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}
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}
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2014-04-29 21:55:34 +00:00
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/// \classmethod mapper([fun])
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/// Get or set the pin mapper function.
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2014-08-29 23:35:11 +00:00
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STATIC mp_obj_t pin_mapper(mp_uint_t n_args, const mp_obj_t *args) {
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2014-04-18 21:38:09 +00:00
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if (n_args > 1) {
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2015-01-07 23:38:50 +00:00
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MP_STATE_PORT(pin_class_mapper) = args[1];
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2014-04-18 21:38:09 +00:00
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return mp_const_none;
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}
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2015-01-07 23:38:50 +00:00
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return MP_STATE_PORT(pin_class_mapper);
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2014-04-18 21:38:09 +00:00
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_mapper_fun_obj, 1, 2, pin_mapper);
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|
STATIC MP_DEFINE_CONST_CLASSMETHOD_OBJ(pin_mapper_obj, (mp_obj_t)&pin_mapper_fun_obj);
|
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \classmethod dict([dict])
|
|
|
|
/// Get or set the pin mapper dictionary.
|
2014-08-29 23:35:11 +00:00
|
|
|
STATIC mp_obj_t pin_map_dict(mp_uint_t n_args, const mp_obj_t *args) {
|
2014-04-18 21:38:09 +00:00
|
|
|
if (n_args > 1) {
|
2015-01-07 23:38:50 +00:00
|
|
|
MP_STATE_PORT(pin_class_map_dict) = args[1];
|
2014-04-18 21:38:09 +00:00
|
|
|
return mp_const_none;
|
|
|
|
}
|
2015-01-07 23:38:50 +00:00
|
|
|
return MP_STATE_PORT(pin_class_map_dict);
|
2014-04-18 21:38:09 +00:00
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_map_dict_fun_obj, 1, 2, pin_map_dict);
|
|
|
|
STATIC MP_DEFINE_CONST_CLASSMETHOD_OBJ(pin_map_dict_obj, (mp_obj_t)&pin_map_dict_fun_obj);
|
|
|
|
|
2014-08-08 21:26:53 +00:00
|
|
|
/// \classmethod af_list()
|
2014-07-22 14:57:36 +00:00
|
|
|
/// Returns an array of alternate functions available for this pin.
|
|
|
|
STATIC mp_obj_t pin_af_list(mp_obj_t self_in) {
|
|
|
|
pin_obj_t *self = self_in;
|
|
|
|
mp_obj_t result = mp_obj_new_list(0, NULL);
|
|
|
|
|
|
|
|
const pin_af_obj_t *af = self->af;
|
|
|
|
for (mp_uint_t i = 0; i < self->num_af; i++, af++) {
|
|
|
|
mp_obj_list_append(result, (mp_obj_t)af);
|
|
|
|
}
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_af_list_obj, pin_af_list);
|
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \classmethod debug([state])
|
|
|
|
/// Get or set the debugging state (`True` or `False` for on or off).
|
2014-08-29 23:35:11 +00:00
|
|
|
STATIC mp_obj_t pin_debug(mp_uint_t n_args, const mp_obj_t *args) {
|
2014-04-18 21:38:09 +00:00
|
|
|
if (n_args > 1) {
|
|
|
|
pin_class_debug = mp_obj_is_true(args[1]);
|
|
|
|
return mp_const_none;
|
|
|
|
}
|
2015-10-11 09:09:43 +00:00
|
|
|
return mp_obj_new_bool(pin_class_debug);
|
2014-04-18 21:38:09 +00:00
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_debug_fun_obj, 1, 2, pin_debug);
|
|
|
|
STATIC MP_DEFINE_CONST_CLASSMETHOD_OBJ(pin_debug_obj, (mp_obj_t)&pin_debug_fun_obj);
|
|
|
|
|
2015-10-19 21:48:21 +00:00
|
|
|
// init(mode, pull=None, af=-1, *, value, alt)
|
|
|
|
STATIC mp_obj_t pin_obj_init_helper(const pin_obj_t *self, mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
|
|
|
|
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_af, MP_ARG_INT, {.u_int = -1}}, // legacy
|
|
|
|
{ MP_QSTR_value, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL}},
|
|
|
|
{ MP_QSTR_alt, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = -1}},
|
|
|
|
};
|
2014-07-22 14:57:36 +00:00
|
|
|
|
|
|
|
// parse args
|
2015-10-19 21:48:21 +00:00
|
|
|
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);
|
2014-04-19 01:17:57 +00:00
|
|
|
|
|
|
|
// get io mode
|
2015-10-19 21:48:21 +00:00
|
|
|
uint mode = args[0].u_int;
|
2014-04-19 01:17:57 +00:00
|
|
|
if (!IS_GPIO_MODE(mode)) {
|
|
|
|
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "invalid pin mode: %d", mode));
|
|
|
|
}
|
|
|
|
|
|
|
|
// get pull mode
|
2015-10-19 21:48:21 +00:00
|
|
|
uint pull = GPIO_NOPULL;
|
|
|
|
if (args[1].u_obj != mp_const_none) {
|
|
|
|
pull = mp_obj_get_int(args[1].u_obj);
|
|
|
|
}
|
2014-07-22 14:57:36 +00:00
|
|
|
if (!IS_GPIO_PULL(pull)) {
|
|
|
|
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "invalid pin pull: %d", pull));
|
|
|
|
}
|
|
|
|
|
2015-10-19 21:48:21 +00:00
|
|
|
// get af (alternate function); alt-arg overrides af-arg
|
|
|
|
mp_int_t af = args[4].u_int;
|
|
|
|
if (af == -1) {
|
|
|
|
af = args[2].u_int;
|
|
|
|
}
|
2014-08-09 07:51:12 +00:00
|
|
|
if ((mode == GPIO_MODE_AF_PP || mode == GPIO_MODE_AF_OD) && !IS_GPIO_AF(af)) {
|
|
|
|
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "invalid pin af: %d", af));
|
2014-07-22 14:57:36 +00:00
|
|
|
}
|
2014-04-19 01:17:57 +00:00
|
|
|
|
2014-08-06 15:04:57 +00:00
|
|
|
// enable the peripheral clock for the port of this pin
|
2015-08-02 23:05:16 +00:00
|
|
|
mp_hal_gpio_clock_enable(self->gpio);
|
2014-08-06 15:04:57 +00:00
|
|
|
|
2015-10-19 21:48:21 +00:00
|
|
|
// if given, set the pin value before initialising to prevent glitches
|
|
|
|
if (args[3].u_obj != MP_OBJ_NULL) {
|
|
|
|
if (mp_obj_is_true(args[3].u_obj)) {
|
|
|
|
GPIO_set_pin(self->gpio, self->pin_mask);
|
|
|
|
} else {
|
|
|
|
GPIO_clear_pin(self->gpio, self->pin_mask);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-04-19 01:17:57 +00:00
|
|
|
// configure the GPIO as requested
|
|
|
|
GPIO_InitTypeDef GPIO_InitStructure;
|
|
|
|
GPIO_InitStructure.Pin = self->pin_mask;
|
|
|
|
GPIO_InitStructure.Mode = mode;
|
|
|
|
GPIO_InitStructure.Pull = pull;
|
|
|
|
GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
|
2014-08-09 07:51:12 +00:00
|
|
|
GPIO_InitStructure.Alternate = af;
|
2014-04-19 01:17:57 +00:00
|
|
|
HAL_GPIO_Init(self->gpio, &GPIO_InitStructure);
|
|
|
|
|
|
|
|
return mp_const_none;
|
|
|
|
}
|
2014-08-08 21:26:53 +00:00
|
|
|
|
2014-08-29 23:35:11 +00:00
|
|
|
STATIC mp_obj_t pin_obj_init(mp_uint_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
|
2014-07-22 14:57:36 +00:00
|
|
|
return pin_obj_init_helper(args[0], n_args - 1, args + 1, kw_args);
|
|
|
|
}
|
2014-08-20 20:21:11 +00:00
|
|
|
MP_DEFINE_CONST_FUN_OBJ_KW(pin_init_obj, 1, pin_obj_init);
|
2014-04-19 01:17:57 +00:00
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \method value([value])
|
|
|
|
/// Get or set the digital logic level of the pin:
|
|
|
|
///
|
|
|
|
/// - With no argument, return 0 or 1 depending on the logic level of the pin.
|
|
|
|
/// - With `value` given, set the logic level of the pin. `value` can be
|
|
|
|
/// anything that converts to a boolean. If it converts to `True`, the pin
|
|
|
|
/// is set high, otherwise it is set low.
|
2014-08-29 23:35:11 +00:00
|
|
|
STATIC mp_obj_t pin_value(mp_uint_t n_args, const mp_obj_t *args) {
|
2015-10-19 21:48:21 +00:00
|
|
|
return pin_call(args[0], n_args - 1, 0, args + 1);
|
2014-04-18 21:38:09 +00:00
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_value_obj, 1, 2, pin_value);
|
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \method low()
|
|
|
|
/// Set the pin to a low logic level.
|
2014-04-18 21:38:09 +00:00
|
|
|
STATIC mp_obj_t pin_low(mp_obj_t self_in) {
|
|
|
|
pin_obj_t *self = self_in;
|
2014-06-16 05:33:14 +00:00
|
|
|
GPIO_clear_pin(self->gpio, self->pin_mask);;
|
2014-04-18 21:38:09 +00:00
|
|
|
return mp_const_none;
|
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_low_obj, pin_low);
|
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \method high()
|
|
|
|
/// Set the pin to a high logic level.
|
2014-04-18 21:38:09 +00:00
|
|
|
STATIC mp_obj_t pin_high(mp_obj_t self_in) {
|
|
|
|
pin_obj_t *self = self_in;
|
2014-06-16 05:33:14 +00:00
|
|
|
GPIO_set_pin(self->gpio, self->pin_mask);;
|
2014-04-18 21:38:09 +00:00
|
|
|
return mp_const_none;
|
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_high_obj, pin_high);
|
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \method name()
|
|
|
|
/// Get the pin name.
|
2014-04-18 21:38:09 +00:00
|
|
|
STATIC mp_obj_t pin_name(mp_obj_t self_in) {
|
2014-03-13 01:06:26 +00:00
|
|
|
pin_obj_t *self = self_in;
|
2014-07-22 14:57:36 +00:00
|
|
|
return MP_OBJ_NEW_QSTR(self->name);
|
2014-03-13 01:06:26 +00:00
|
|
|
}
|
2014-04-18 21:38:09 +00:00
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_name_obj, pin_name);
|
2014-03-13 01:06:26 +00:00
|
|
|
|
2014-07-22 14:57:36 +00:00
|
|
|
/// \method names()
|
|
|
|
/// Returns the cpu and board names for this pin.
|
|
|
|
STATIC mp_obj_t pin_names(mp_obj_t self_in) {
|
|
|
|
pin_obj_t *self = self_in;
|
|
|
|
mp_obj_t result = mp_obj_new_list(0, NULL);
|
|
|
|
mp_obj_list_append(result, MP_OBJ_NEW_QSTR(self->name));
|
|
|
|
|
|
|
|
mp_map_t *map = mp_obj_dict_get_map((mp_obj_t)&pin_board_pins_locals_dict);
|
|
|
|
mp_map_elem_t *elem = map->table;
|
|
|
|
|
|
|
|
for (mp_uint_t i = 0; i < map->used; i++, elem++) {
|
|
|
|
if (elem->value == self) {
|
|
|
|
mp_obj_list_append(result, elem->key);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_names_obj, pin_names);
|
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \method port()
|
|
|
|
/// Get the pin port.
|
2014-04-18 21:38:09 +00:00
|
|
|
STATIC mp_obj_t pin_port(mp_obj_t self_in) {
|
2014-03-13 01:06:26 +00:00
|
|
|
pin_obj_t *self = self_in;
|
2014-07-31 09:49:14 +00:00
|
|
|
return MP_OBJ_NEW_SMALL_INT(self->port);
|
2014-03-13 01:06:26 +00:00
|
|
|
}
|
2014-04-18 21:38:09 +00:00
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_port_obj, pin_port);
|
2014-03-13 01:06:26 +00:00
|
|
|
|
2014-04-29 21:55:34 +00:00
|
|
|
/// \method pin()
|
|
|
|
/// Get the pin number.
|
2014-04-18 21:38:09 +00:00
|
|
|
STATIC mp_obj_t pin_pin(mp_obj_t self_in) {
|
2014-03-13 01:06:26 +00:00
|
|
|
pin_obj_t *self = self_in;
|
2014-07-31 09:49:14 +00:00
|
|
|
return MP_OBJ_NEW_SMALL_INT(self->pin);
|
2014-03-13 01:06:26 +00:00
|
|
|
}
|
2014-04-18 21:38:09 +00:00
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_pin_obj, pin_pin);
|
|
|
|
|
2014-07-22 14:57:36 +00:00
|
|
|
/// \method gpio()
|
|
|
|
/// Returns the base address of the GPIO block associated with this pin.
|
|
|
|
STATIC mp_obj_t pin_gpio(mp_obj_t self_in) {
|
|
|
|
pin_obj_t *self = self_in;
|
|
|
|
return MP_OBJ_NEW_SMALL_INT((mp_int_t)self->gpio);
|
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_gpio_obj, pin_gpio);
|
|
|
|
|
2014-08-11 06:18:10 +00:00
|
|
|
/// \method mode()
|
|
|
|
/// Returns the currently configured mode of the pin. The integer returned
|
|
|
|
/// will match one of the allowed constants for the mode argument to the init
|
|
|
|
/// function.
|
|
|
|
STATIC mp_obj_t pin_mode(mp_obj_t self_in) {
|
|
|
|
return MP_OBJ_NEW_SMALL_INT(pin_get_mode(self_in));
|
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_mode_obj, pin_mode);
|
|
|
|
|
|
|
|
/// \method pull()
|
|
|
|
/// Returns the currently configured pull of the pin. The integer returned
|
|
|
|
/// will match one of the allowed constants for the pull argument to the init
|
|
|
|
/// function.
|
|
|
|
STATIC mp_obj_t pin_pull(mp_obj_t self_in) {
|
|
|
|
return MP_OBJ_NEW_SMALL_INT(pin_get_pull(self_in));
|
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_pull_obj, pin_pull);
|
|
|
|
|
|
|
|
/// \method af()
|
2014-08-24 17:30:22 +00:00
|
|
|
/// Returns the currently configured alternate-function of the pin. The
|
|
|
|
/// integer returned will match one of the allowed constants for the af
|
|
|
|
/// argument to the init function.
|
2014-08-11 06:18:10 +00:00
|
|
|
STATIC mp_obj_t pin_af(mp_obj_t self_in) {
|
|
|
|
return MP_OBJ_NEW_SMALL_INT(pin_get_af(self_in));
|
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_af_obj, pin_af);
|
|
|
|
|
2014-04-18 21:38:09 +00:00
|
|
|
STATIC const mp_map_elem_t pin_locals_dict_table[] = {
|
|
|
|
// instance methods
|
2014-04-19 01:17:57 +00:00
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_init), (mp_obj_t)&pin_init_obj },
|
2014-04-18 21:38:09 +00:00
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_value), (mp_obj_t)&pin_value_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_low), (mp_obj_t)&pin_low_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_high), (mp_obj_t)&pin_high_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_name), (mp_obj_t)&pin_name_obj },
|
2014-07-22 14:57:36 +00:00
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_names), (mp_obj_t)&pin_names_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_af_list), (mp_obj_t)&pin_af_list_obj },
|
2014-04-18 21:38:09 +00:00
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_port), (mp_obj_t)&pin_port_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_pin), (mp_obj_t)&pin_pin_obj },
|
2014-07-22 14:57:36 +00:00
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_gpio), (mp_obj_t)&pin_gpio_obj },
|
2014-08-11 06:18:10 +00:00
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_mode), (mp_obj_t)&pin_mode_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_pull), (mp_obj_t)&pin_pull_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_af), (mp_obj_t)&pin_af_obj },
|
2014-04-18 21:38:09 +00:00
|
|
|
|
|
|
|
// class methods
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_mapper), (mp_obj_t)&pin_mapper_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_dict), (mp_obj_t)&pin_map_dict_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_debug), (mp_obj_t)&pin_debug_obj },
|
2014-03-13 01:06:26 +00:00
|
|
|
|
2014-04-18 21:38:09 +00:00
|
|
|
// class attributes
|
2014-07-22 14:57:36 +00:00
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_board), (mp_obj_t)&pin_board_pins_obj_type },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_cpu), (mp_obj_t)&pin_cpu_pins_obj_type },
|
2014-03-13 01:06:26 +00:00
|
|
|
|
2014-04-18 21:38:09 +00:00
|
|
|
// class constants
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_IN), MP_OBJ_NEW_SMALL_INT(GPIO_MODE_INPUT) },
|
2015-10-19 21:48:21 +00:00
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_OUT), MP_OBJ_NEW_SMALL_INT(GPIO_MODE_OUTPUT_PP) },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_OPEN_DRAIN), MP_OBJ_NEW_SMALL_INT(GPIO_MODE_OUTPUT_OD) },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_ALT), MP_OBJ_NEW_SMALL_INT(GPIO_MODE_AF_PP) },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_ALT_OPEN_DRAIN), MP_OBJ_NEW_SMALL_INT(GPIO_MODE_AF_OD) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_ANALOG), MP_OBJ_NEW_SMALL_INT(GPIO_MODE_ANALOG) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_PULL_UP), MP_OBJ_NEW_SMALL_INT(GPIO_PULLUP) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_PULL_DOWN), MP_OBJ_NEW_SMALL_INT(GPIO_PULLDOWN) },
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// legacy class constants
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2014-04-18 21:38:09 +00:00
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{ MP_OBJ_NEW_QSTR(MP_QSTR_OUT_PP), MP_OBJ_NEW_SMALL_INT(GPIO_MODE_OUTPUT_PP) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_OUT_OD), MP_OBJ_NEW_SMALL_INT(GPIO_MODE_OUTPUT_OD) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_AF_PP), MP_OBJ_NEW_SMALL_INT(GPIO_MODE_AF_PP) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_AF_OD), MP_OBJ_NEW_SMALL_INT(GPIO_MODE_AF_OD) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_PULL_NONE), MP_OBJ_NEW_SMALL_INT(GPIO_NOPULL) },
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2014-08-08 21:26:53 +00:00
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2014-08-08 21:34:06 +00:00
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#include "genhdr/pins_af_const.h"
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2014-03-13 01:06:26 +00:00
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};
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2014-04-18 21:38:09 +00:00
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STATIC MP_DEFINE_CONST_DICT(pin_locals_dict, pin_locals_dict_table);
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const mp_obj_type_t pin_type = {
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2014-03-13 01:06:26 +00:00
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{ &mp_type_type },
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.name = MP_QSTR_Pin,
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2014-04-18 21:38:09 +00:00
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.print = pin_print,
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.make_new = pin_make_new,
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2015-10-19 21:48:21 +00:00
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.call = pin_call,
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2014-04-18 21:38:09 +00:00
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.locals_dict = (mp_obj_t)&pin_locals_dict,
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2014-03-13 01:06:26 +00:00
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};
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2014-07-22 14:57:36 +00:00
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/// \moduleref pyb
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/// \class PinAF - Pin Alternate Functions
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///
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/// A Pin represents a physical pin on the microcprocessor. Each pin
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/// can have a variety of functions (GPIO, I2C SDA, etc). Each PinAF
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/// object represents a particular function for a pin.
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///
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/// Usage Model:
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///
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/// x3 = pyb.Pin.board.X3
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/// x3_af = x3.af_list()
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///
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/// x3_af will now contain an array of PinAF objects which are availble on
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|
|
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/// pin X3.
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///
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/// For the pyboard, x3_af would contain:
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/// [Pin.AF1_TIM2, Pin.AF2_TIM5, Pin.AF3_TIM9, Pin.AF7_USART2]
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///
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/// Normally, each peripheral would configure the af automatically, but sometimes
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/// the same function is available on multiple pins, and having more control
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/// is desired.
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///
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|
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|
/// To configure X3 to expose TIM2_CH3, you could use:
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|
|
|
/// pin = pyb.Pin(pyb.Pin.board.X3, mode=pyb.Pin.AF_PP, af=pyb.Pin.AF1_TIM2)
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|
|
|
/// or:
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|
|
|
/// pin = pyb.Pin(pyb.Pin.board.X3, mode=pyb.Pin.AF_PP, af=1)
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|
|
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|
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|
|
/// \method __str__()
|
|
|
|
/// Return a string describing the alternate function.
|
2015-04-09 22:56:15 +00:00
|
|
|
STATIC void pin_af_obj_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
|
2014-03-13 01:06:26 +00:00
|
|
|
pin_af_obj_t *self = self_in;
|
2015-04-16 17:40:06 +00:00
|
|
|
mp_printf(print, "Pin.%q", self->name);
|
2014-03-13 01:06:26 +00:00
|
|
|
}
|
|
|
|
|
2014-07-22 14:57:36 +00:00
|
|
|
/// \method index()
|
|
|
|
/// Return the alternate function index.
|
|
|
|
STATIC mp_obj_t pin_af_index(mp_obj_t self_in) {
|
|
|
|
pin_af_obj_t *af = self_in;
|
|
|
|
return MP_OBJ_NEW_SMALL_INT(af->idx);
|
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_af_index_obj, pin_af_index);
|
|
|
|
|
2014-08-08 22:30:01 +00:00
|
|
|
/// \method name()
|
2014-07-22 14:57:36 +00:00
|
|
|
/// Return the name of the alternate function.
|
|
|
|
STATIC mp_obj_t pin_af_name(mp_obj_t self_in) {
|
|
|
|
pin_af_obj_t *af = self_in;
|
|
|
|
return MP_OBJ_NEW_QSTR(af->name);
|
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_af_name_obj, pin_af_name);
|
|
|
|
|
2014-08-08 22:30:01 +00:00
|
|
|
/// \method reg()
|
2014-07-22 14:57:36 +00:00
|
|
|
/// Return the base register associated with the peripheral assigned to this
|
|
|
|
/// alternate function. For example, if the alternate function were TIM2_CH3
|
|
|
|
/// this would return stm.TIM2
|
|
|
|
STATIC mp_obj_t pin_af_reg(mp_obj_t self_in) {
|
|
|
|
pin_af_obj_t *af = self_in;
|
|
|
|
return MP_OBJ_NEW_SMALL_INT((mp_uint_t)af->reg);
|
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_af_reg_obj, pin_af_reg);
|
|
|
|
|
|
|
|
STATIC const mp_map_elem_t pin_af_locals_dict_table[] = {
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_index), (mp_obj_t)&pin_af_index_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_name), (mp_obj_t)&pin_af_name_obj },
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_reg), (mp_obj_t)&pin_af_reg_obj },
|
|
|
|
};
|
|
|
|
STATIC MP_DEFINE_CONST_DICT(pin_af_locals_dict, pin_af_locals_dict_table);
|
|
|
|
|
2014-04-18 21:38:09 +00:00
|
|
|
const mp_obj_type_t pin_af_type = {
|
2014-03-13 01:06:26 +00:00
|
|
|
{ &mp_type_type },
|
|
|
|
.name = MP_QSTR_PinAF,
|
|
|
|
.print = pin_af_obj_print,
|
2014-07-22 14:57:36 +00:00
|
|
|
.locals_dict = (mp_obj_t)&pin_af_locals_dict,
|
2014-03-13 01:06:26 +00:00
|
|
|
};
|