/* * Copyright (C) 2023-2025 OpenMV, LLC. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Any redistribution, use, or modification in source or binary form * is done solely for personal benefit and not for any commercial * purpose or for monetary gain. For commercial licensing options, * please contact openmv@openmv.io * * THIS SOFTWARE IS PROVIDED BY THE LICENSOR AND COPYRIGHT OWNER "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE LICENSOR OR COPYRIGHT * OWNER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * QEMU dummy I2C driver. */ #include #include #include #include "py/mphal.h" #include "py/runtime.h" #include "omv_portconfig.h" #include "omv_i2c.h" int omv_i2c_init(omv_i2c_t *i2c, uint32_t bus_id, uint32_t speed) { i2c->id = bus_id; i2c->speed = speed; i2c->initialized = true; i2c->scl_pin = NULL; i2c->sda_pin = NULL; i2c->inst = NULL; return 0; } int omv_i2c_deinit(omv_i2c_t *i2c) { if (i2c->initialized) { i2c->initialized = false; } return 0; } int omv_i2c_scan(omv_i2c_t *i2c, uint8_t *list, uint8_t size) { // Dummy implementation - no devices found return 0; } int omv_i2c_enable(omv_i2c_t *i2c, bool enable) { // Dummy implementation return 0; }