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ki2cvar.h revision 1.1 
      1 /*	$NetBSD: ki2cvar.h,v 1.1 2005/08/10 14:29:08 macallan Exp $	*/
      2 /*	Id: ki2c.c,v 1.7 2002/10/05 09:56:05 tsubai Exp	*/
      3 
      4 /*-
      5  * Copyright (c) 2001 Tsubai Masanari.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     27  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #ifndef KI2CVAR_H
     31 #define KI2CVAR_H
     32 
     33 #include <sys/param.h>
     34 #include <sys/device.h>
     35 #include <sys/systm.h>
     36 
     37 #include <dev/i2c/i2cvar.h>
     38 
     39 /* Keywest I2C Register offsets */
     40 #define MODE	0
     41 #define CONTROL	1
     42 #define STATUS	2
     43 #define ISR	3
     44 #define IER	4
     45 #define ADDR	5
     46 #define SUBADDR	6
     47 #define DATA	7
     48 
     49 /* MODE */
     50 #define I2C_SPEED	0x03	/* Speed mask */
     51 #define  I2C_100kHz	0x00
     52 #define  I2C_50kHz	0x01
     53 #define  I2C_25kHz	0x02
     54 #define I2C_MODE	0x0c	/* Mode mask */
     55 #define  I2C_DUMBMODE	0x00	/*  Dumb mode */
     56 #define  I2C_STDMODE	0x04	/*  Standard mode */
     57 #define  I2C_STDSUBMODE	0x08	/*  Standard mode + sub address */
     58 #define  I2C_COMBMODE	0x0c	/*  Combined mode */
     59 #define I2C_PORT	0xf0	/* Port mask */
     60 
     61 /* CONTROL */
     62 #define I2C_CT_AAK	0x01	/* Send AAK */
     63 #define I2C_CT_ADDR	0x02	/* Send address(es) */
     64 #define I2C_CT_STOP	0x04	/* Send STOP */
     65 #define I2C_CT_START	0x08	/* Send START */
     66 
     67 /* STATUS */
     68 #define I2C_ST_BUSY	0x01	/* Busy */
     69 #define I2C_ST_LASTAAK	0x02	/* Last AAK */
     70 #define I2C_ST_LASTRW	0x04	/* Last R/W */
     71 #define I2C_ST_SDA	0x08	/* SDA */
     72 #define I2C_ST_SCL	0x10	/* SCL */
     73 
     74 /* ISR/IER */
     75 #define I2C_INT_DATA	0x01	/* Data byte sent/received */
     76 #define I2C_INT_ADDR	0x02	/* Address sent */
     77 #define I2C_INT_STOP	0x04	/* STOP condition sent */
     78 #define I2C_INT_START	0x08	/* START condition sent */
     79 
     80 /* I2C flags */
     81 #define I2C_BUSY	0x01
     82 #define I2C_READING	0x02
     83 #define I2C_ERROR	0x04
     84 
     85 struct ki2c_softc {
     86 	struct device sc_dev;
     87 	u_char *sc_reg;
     88 	int sc_regstep;
     89 
     90 	struct i2c_controller sc_i2c;
     91 	struct lock sc_buslock;
     92 
     93 	int sc_flags;
     94 	u_char *sc_data;
     95 	int sc_resid;
     96 };
     97 
     98 struct ki2c_confargs {
     99 	char 		*ka_name;	/* device name */
    100 	int		ka_node;
    101 	i2c_tag_t	ka_tag;		/* our controller */
    102 	i2c_addr_t	ka_addr;	/* address of device */
    103 };
    104 
    105 #endif
    106