| /* |
| * Logging of I2C messages |
| * |
| * Copyright 2020 Google LLC |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <stdio.h> |
| |
| #include <zephyr/drivers/i2c.h> |
| |
| #define LOG_LEVEL CONFIG_I2C_LOG_LEVEL |
| #include <zephyr/logging/log.h> |
| LOG_MODULE_REGISTER(i2c); |
| |
| #if defined(CONFIG_I2C_CALLBACK) && defined(CONFIG_POLL) |
| void z_i2c_transfer_signal_cb(const struct device *dev, |
| int result, |
| void *data) |
| { |
| struct k_poll_signal *sig = (struct k_poll_signal *)data; |
| |
| k_poll_signal_raise(sig, result); |
| } |
| #endif |
| |
| void i2c_dump_msgs_rw(const char *name, const struct i2c_msg *msgs, |
| uint8_t num_msgs, uint16_t addr, bool dump_read) |
| { |
| LOG_DBG("I2C msg: %s, addr=%x", name, addr); |
| for (unsigned int i = 0; i < num_msgs; i++) { |
| const struct i2c_msg *msg = &msgs[i]; |
| const bool is_read = msg->flags & I2C_MSG_READ; |
| const bool dump_data = dump_read || !is_read; |
| |
| if (msg->len == 1 && dump_data) { |
| LOG_DBG(" %c %s%s len=01: %02x", is_read ? 'R' : 'W', |
| msg->flags & I2C_MSG_RESTART ? "Sr " : "", |
| msg->flags & I2C_MSG_STOP ? "P" : "", |
| msg->buf[0]); |
| } else { |
| LOG_DBG(" %c %s%s len=%02x: ", is_read ? 'R' : 'W', |
| msg->flags & I2C_MSG_RESTART ? "Sr " : "", |
| msg->flags & I2C_MSG_STOP ? "P" : "", |
| msg->len); |
| if (dump_data) { |
| LOG_HEXDUMP_DBG(msg->buf, msg->len, "contents:"); |
| } |
| } |
| } |
| } |