sys/arch/macppc/dev/ki2cvar.h

   1 /*      $NetBSD: ki2cvar.h,v 1.2 2005/12/11 12:18:03 christos 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         kmutex_t 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