106 lines
3.3 KiB
C
106 lines
3.3 KiB
C
/* $NetBSD: ki2cvar.h,v 1.2 2005/12/11 12:18:03 christos Exp $ */
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/* Id: ki2c.c,v 1.7 2002/10/05 09:56:05 tsubai Exp */
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/*-
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* Copyright (c) 2001 Tsubai Masanari. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef KI2CVAR_H
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#define KI2CVAR_H
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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#include <dev/i2c/i2cvar.h>
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/* Keywest I2C Register offsets */
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#define MODE 0
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#define CONTROL 1
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#define STATUS 2
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#define ISR 3
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#define IER 4
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#define ADDR 5
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#define SUBADDR 6
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#define DATA 7
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/* MODE */
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#define I2C_SPEED 0x03 /* Speed mask */
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#define I2C_100kHz 0x00
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#define I2C_50kHz 0x01
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#define I2C_25kHz 0x02
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#define I2C_MODE 0x0c /* Mode mask */
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#define I2C_DUMBMODE 0x00 /* Dumb mode */
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#define I2C_STDMODE 0x04 /* Standard mode */
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#define I2C_STDSUBMODE 0x08 /* Standard mode + sub address */
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#define I2C_COMBMODE 0x0c /* Combined mode */
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#define I2C_PORT 0xf0 /* Port mask */
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/* CONTROL */
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#define I2C_CT_AAK 0x01 /* Send AAK */
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#define I2C_CT_ADDR 0x02 /* Send address(es) */
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#define I2C_CT_STOP 0x04 /* Send STOP */
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#define I2C_CT_START 0x08 /* Send START */
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/* STATUS */
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#define I2C_ST_BUSY 0x01 /* Busy */
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#define I2C_ST_LASTAAK 0x02 /* Last AAK */
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#define I2C_ST_LASTRW 0x04 /* Last R/W */
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#define I2C_ST_SDA 0x08 /* SDA */
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#define I2C_ST_SCL 0x10 /* SCL */
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/* ISR/IER */
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#define I2C_INT_DATA 0x01 /* Data byte sent/received */
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#define I2C_INT_ADDR 0x02 /* Address sent */
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#define I2C_INT_STOP 0x04 /* STOP condition sent */
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#define I2C_INT_START 0x08 /* START condition sent */
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/* I2C flags */
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#define I2C_BUSY 0x01
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#define I2C_READING 0x02
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#define I2C_ERROR 0x04
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struct ki2c_softc {
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struct device sc_dev;
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u_char *sc_reg;
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int sc_regstep;
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struct i2c_controller sc_i2c;
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struct lock sc_buslock;
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int sc_flags;
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u_char *sc_data;
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int sc_resid;
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};
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struct ki2c_confargs {
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char *ka_name; /* device name */
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int ka_node;
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i2c_tag_t ka_tag; /* our controller */
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i2c_addr_t ka_addr; /* address of device */
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};
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#endif
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