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micropython/extmod/virtpin.c

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extmod/virtpin: Initial implementation of open-ended C-level Pin interface. Using usual method of virtual method tables. Single virtual method, ioctl, is defined currently for all operations. This universal and extensible vtable-based method is also defined as a default MPHAL GPIO implementation, but a specific port may override it with its own implementation (e.g. close-ended, but very efficient, e.g. avoiding virtual method dispatch).
9 years ago
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2016 Paul Sokolovsky
*
* 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 "extmod/virtpin.h"
int mp_virtual_pin_read(mp_obj_t pin) {
mp_obj_base_t* s = (mp_obj_base_t*)MP_OBJ_TO_PTR(pin);
all: Rename mp_obj_type_t::stream_p to protocol. It's now used for more than just stream protocol (e.g. pin protocol), so don't use false names.
9 years ago
mp_pin_p_t *pin_p = (mp_pin_p_t*)s->type->protocol;
extmod/virtpin: Initial implementation of open-ended C-level Pin interface. Using usual method of virtual method tables. Single virtual method, ioctl, is defined currently for all operations. This universal and extensible vtable-based method is also defined as a default MPHAL GPIO implementation, but a specific port may override it with its own implementation (e.g. close-ended, but very efficient, e.g. avoiding virtual method dispatch).
9 years ago
return pin_p->ioctl(pin, MP_PIN_READ, 0, NULL);
}
void mp_virtual_pin_write(mp_obj_t pin, int value) {
mp_obj_base_t* s = (mp_obj_base_t*)MP_OBJ_TO_PTR(pin);
all: Rename mp_obj_type_t::stream_p to protocol. It's now used for more than just stream protocol (e.g. pin protocol), so don't use false names.
9 years ago
mp_pin_p_t *pin_p = (mp_pin_p_t*)s->type->protocol;
extmod/virtpin: Initial implementation of open-ended C-level Pin interface. Using usual method of virtual method tables. Single virtual method, ioctl, is defined currently for all operations. This universal and extensible vtable-based method is also defined as a default MPHAL GPIO implementation, but a specific port may override it with its own implementation (e.g. close-ended, but very efficient, e.g. avoiding virtual method dispatch).
9 years ago
pin_p->ioctl(pin, MP_PIN_WRITE, value, NULL);
}