1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 2000 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #ifndef _SSC100_IMPL_H 28 #define _SSC100_IMPL_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #include <sys/i2c/clients/i2c_client.h> 37 38 /* 39 * SSC100_BIT_READ_MASK takes in a byte from the device and the bit that 40 * the user wants to read. I shifts the byte over so that the bit that we 41 * want is in the 1's bit and masks out the rest of the byte. 42 */ 43 #define SSC100_BIT_READ_MASK(byte, bit) ((byte >> bit) & 0x01) 44 45 /* 46 * SSC100_BIT_WRITE_MASK takes in a byte from the device, the bit that the 47 * user wants to read write, and the value that the user wants put into that 48 * bit. It zero's out the bit that we are writing to in the byte and then or's 49 * the value(which was shifted to the bit location we wanted) to fill in only 50 * that bit in the byte 51 */ 52 #define SSC100_BIT_WRITE_MASK(byte, bit, value)\ 53 ((value << bit) | (byte & (~(0x01 << bit)))) 54 55 #define SSC100_SIZE 8192 56 #define SSC100_PAGESIZE 32 57 #define SSC100_PAGEMASK (SSC100_PAGESIZE - 1) 58 59 struct ssc100_unit { 60 kmutex_t ssc100_mutex; 61 uint8_t ssc100_flags; 62 int ssc100_oflag; 63 int ssc100_size; 64 i2c_client_hdl_t ssc100_hdl; 65 char ssc100_name[24]; 66 }; 67 68 #ifdef DEBUG 69 70 static int ssc100debug = 0; 71 #define D1CMN_ERR(ARGS) if (ssc100debug & 0x1) cmn_err ARGS; 72 #define D2CMN_ERR(ARGS) if (ssc100debug & 0x2) cmn_err ARGS; 73 74 #else 75 76 #define D1CMN_ERR(ARGS) 77 #define D2CMN_ERR(ARGS) 78 79 #endif 80 81 #ifdef __cplusplus 82 } 83 #endif 84 85 #endif /* _SSC100_IMPL_H */ 86