1efce3748SRui Paulo /*- 2*4d846d26SWarner Losh * SPDX-License-Identifier: BSD-2-Clause 3718cf2ccSPedro F. Giffuni * 4efce3748SRui Paulo * Copyright (c) 1998 Nicolas Souchu 5efce3748SRui Paulo * All rights reserved. 6efce3748SRui Paulo * 7efce3748SRui Paulo * Redistribution and use in source and binary forms, with or without 8efce3748SRui Paulo * modification, are permitted provided that the following conditions 9efce3748SRui Paulo * are met: 10efce3748SRui Paulo * 1. Redistributions of source code must retain the above copyright 11efce3748SRui Paulo * notice, this list of conditions and the following disclaimer. 12efce3748SRui Paulo * 2. Redistributions in binary form must reproduce the above copyright 13efce3748SRui Paulo * notice, this list of conditions and the following disclaimer in the 14efce3748SRui Paulo * documentation and/or other materials provided with the distribution. 15efce3748SRui Paulo * 16efce3748SRui Paulo * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17efce3748SRui Paulo * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18efce3748SRui Paulo * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19efce3748SRui Paulo * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20efce3748SRui Paulo * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21efce3748SRui Paulo * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22efce3748SRui Paulo * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23efce3748SRui Paulo * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24efce3748SRui Paulo * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25efce3748SRui Paulo * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26efce3748SRui Paulo * SUCH DAMAGE. 27efce3748SRui Paulo * 28efce3748SRui Paulo */ 29efce3748SRui Paulo #ifndef __IIC_H 30efce3748SRui Paulo #define __IIC_H 31efce3748SRui Paulo 32efce3748SRui Paulo #include <sys/ioccom.h> 33efce3748SRui Paulo 34efce3748SRui Paulo /* Designed to be compatible with linux's struct i2c_msg */ 35efce3748SRui Paulo struct iic_msg 36efce3748SRui Paulo { 37efce3748SRui Paulo uint16_t slave; 38efce3748SRui Paulo uint16_t flags; 39efce3748SRui Paulo #define IIC_M_WR 0 /* Fake flag for write */ 40efce3748SRui Paulo #define IIC_M_RD 0x0001 /* read vs write */ 41efce3748SRui Paulo #define IIC_M_NOSTOP 0x0002 /* do not send a I2C stop after message */ 42efce3748SRui Paulo #define IIC_M_NOSTART 0x0004 /* do not send a I2C start before message */ 43efce3748SRui Paulo uint16_t len; /* msg length */ 44efce3748SRui Paulo uint8_t * buf; 45efce3748SRui Paulo }; 46efce3748SRui Paulo 47efce3748SRui Paulo struct iiccmd { 48efce3748SRui Paulo u_char slave; 49efce3748SRui Paulo int count; 50efce3748SRui Paulo int last; 51efce3748SRui Paulo char *buf; 52efce3748SRui Paulo }; 53efce3748SRui Paulo 54efce3748SRui Paulo struct iic_rdwr_data { 55efce3748SRui Paulo struct iic_msg *msgs; 56efce3748SRui Paulo uint32_t nmsgs; 57efce3748SRui Paulo }; 58efce3748SRui Paulo 59523a6367SJason A. Harmening #define IIC_RDRW_MAX_MSGS 42 60523a6367SJason A. Harmening 61efce3748SRui Paulo #define I2CSTART _IOW('i', 1, struct iiccmd) /* start condition */ 62efce3748SRui Paulo #define I2CSTOP _IO('i', 2) /* stop condition */ 63efce3748SRui Paulo #define I2CRSTCARD _IOW('i', 3, struct iiccmd) /* reset the card */ 64efce3748SRui Paulo #define I2CWRITE _IOW('i', 4, struct iiccmd) /* send data */ 65efce3748SRui Paulo #define I2CREAD _IOW('i', 5, struct iiccmd) /* receive data */ 66efce3748SRui Paulo #define I2CRDWR _IOW('i', 6, struct iic_rdwr_data) /* General read/write interface */ 67efce3748SRui Paulo #define I2CRPTSTART _IOW('i', 7, struct iiccmd) /* repeated start */ 680afebee2SJason A. Harmening #define I2CSADDR _IOW('i', 8, uint8_t) /* set slave address for future I/O */ 69efce3748SRui Paulo 70efce3748SRui Paulo #endif 71