/* * This file is part of the MicroPython project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2016 Scott Shawcroft * * 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_SHARED_BINDINGS_BITBANGIO_I2C_H #define MICROPY_INCLUDED_SHARED_BINDINGS_BITBANGIO_I2C_H #include "py/obj.h" #include "common-hal/microcontroller/Pin.h" #include "shared-module/bitbangio/I2C.h" // Type object used in Python. Should be shared between ports. extern const mp_obj_type_t bitbangio_i2c_type; // Initializes the hardware peripheral. extern void shared_module_bitbangio_i2c_construct(bitbangio_i2c_obj_t *self, const mcu_pin_obj_t *scl, const mcu_pin_obj_t *sda, uint32_t frequency, uint32_t us_timeout); extern void shared_module_bitbangio_i2c_deinit(bitbangio_i2c_obj_t *self); extern bool shared_module_bitbangio_i2c_deinited(bitbangio_i2c_obj_t *self); extern bool shared_module_bitbangio_i2c_try_lock(bitbangio_i2c_obj_t *self); extern bool shared_module_bitbangio_i2c_has_lock(bitbangio_i2c_obj_t *self); extern void shared_module_bitbangio_i2c_unlock(bitbangio_i2c_obj_t *self); // Probe the bus to see if a device acknowledges the given address. extern bool shared_module_bitbangio_i2c_probe(bitbangio_i2c_obj_t *self, uint8_t addr); extern uint8_t shared_module_bitbangio_i2c_write(bitbangio_i2c_obj_t *self, uint16_t address, const uint8_t *data, size_t len, bool stop); // Reads memory of the i2c device picking up where it left off. extern uint8_t shared_module_bitbangio_i2c_read(bitbangio_i2c_obj_t *self, uint16_t address, uint8_t *data, size_t len); #endif // MICROPY_INCLUDED_SHARED_BINDINGS_BITBANGIO_I2C_H