1 /*- 2 * Copyright (c) 1998 Nicolas Souchu 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/sys/dev/smbus/smbconf.h,v 1.7.14.1 2006/09/22 19:19:16 jhb Exp $ 27 * $DragonFly: src/sys/bus/smbus/smbconf.h,v 1.4 2003/11/14 21:46:18 daver Exp $ 28 */ 29 #ifndef __SMBONF_H 30 #define __SMBONF_H 31 32 #include <sys/queue.h> 33 34 #define SMBPRI (PZERO+8) /* XXX sleep/wakeup queue priority */ 35 36 #define n(flags) (~(flags) & (flags)) 37 38 /* 39 * How tsleep() is called in smb_request_bus(). 40 */ 41 #define SMB_DONTWAIT 0 42 #define SMB_NOINTR 0 43 #define SMB_WAIT 0x1 44 #define SMB_INTR 0x2 45 46 /* 47 * callback index 48 */ 49 #define SMB_REQUEST_BUS 0x1 50 #define SMB_RELEASE_BUS 0x2 51 52 /* 53 * SMB bus errors 54 */ 55 #define SMB_ENOERR 0x0 56 #define SMB_EBUSERR 0x1 57 #define SMB_ENOTSUPP 0x2 58 #define SMB_ENOACK 0x4 59 #define SMB_ECOLLI 0x8 60 #define SMB_EABORT 0x10 61 #define SMB_ETIMEOUT 0x20 62 #define SMB_EBUSY 0x40 63 #define SMB_EINVAL 0x100 64 65 /* 66 * How Quick command is executed 67 */ 68 #define SMB_QWRITE 0x0 69 #define SMB_QREAD 0x1 70 71 /* 72 * smbus transaction op with pass-thru capabilities 73 * 74 * This smbus function is capable of doing a smbus command transaction 75 * (read or write), and can be flagged to not issue the 'cmd' and/or 76 * issue or expect a count field as well as flagged for chaining (no STOP), 77 * which gives it an i2c pass-through capability. 78 * 79 * NOSTOP- Caller chaining transactions, do not issue STOP 80 * NOCMD- Do not transmit the command field 81 * NOCNT- Do not transmit (wr) or expect (rd) the count field 82 */ 83 #define SMB_TRANS_NOSTOP 0x0001 /* do not send STOP at end */ 84 #define SMB_TRANS_NOCMD 0x0002 /* ignore cmd field (do not tx) */ 85 #define SMB_TRANS_NOCNT 0x0004 /* do not tx or rx count field */ 86 #define SMB_TRANS_7BIT 0x0008 /* change address mode to 7-bit */ 87 #define SMB_TRANS_10BIT 0x0010 /* change address mode to 10-bit */ 88 #define SMB_TRANS_NOREPORT 0x0020 /* do not report errors */ 89 90 /* 91 * ivars codes 92 */ 93 94 #ifdef _KERNEL 95 96 #define SMBUS_IVAR_ADDR 0x1 /* slave address of the device */ 97 98 int smbus_request_bus(device_t, device_t, int); 99 int smbus_release_bus(device_t, device_t); 100 int smbus_error(int error); 101 102 void smbus_intr(device_t, u_char, char low, char high, int error); 103 104 u_char smbus_get_addr(device_t); 105 106 extern driver_t smbus_driver; 107 extern devclass_t smbus_devclass; 108 109 #define smbus_quick(bus,slave,how) \ 110 (SMBUS_QUICK(device_get_parent(bus), slave, how)) 111 #define smbus_sendb(bus,slave,byte) \ 112 (SMBUS_SENDB(device_get_parent(bus), slave, byte)) 113 #define smbus_recvb(bus,slave,byte) \ 114 (SMBUS_RECVB(device_get_parent(bus), slave, byte)) 115 #define smbus_writeb(bus,slave,cmd,byte) \ 116 (SMBUS_WRITEB(device_get_parent(bus), slave, cmd, byte)) 117 #define smbus_writew(bus,slave,cmd,word) \ 118 (SMBUS_WRITEW(device_get_parent(bus), slave, cmd, word)) 119 #define smbus_readb(bus,slave,cmd,byte) \ 120 (SMBUS_READB(device_get_parent(bus), slave, cmd, byte)) 121 #define smbus_readw(bus,slave,cmd,word) \ 122 (SMBUS_READW(device_get_parent(bus), slave, cmd, word)) 123 #define smbus_pcall(bus,slave,cmd,sdata,rdata) \ 124 (SMBUS_PCALL(device_get_parent(bus), slave, cmd, sdata, rdata)) 125 #define smbus_bwrite(bus,slave,cmd,count,buf) \ 126 (SMBUS_BWRITE(device_get_parent(bus), slave, cmd, count, buf)) 127 #define smbus_bread(bus,slave,cmd,count,buf) \ 128 (SMBUS_BREAD(device_get_parent(bus), slave, cmd, count, buf)) 129 #define smbus_trans(bus,slave,cmd,op,wbuf,wcount,rbuf,rcount,actualp) \ 130 (SMBUS_TRANS(device_get_parent(bus), slave, cmd, op, \ 131 wbuf, wcount, rbuf, rcount, actualp)) 132 133 #define SMBUS_MODVER 1 134 #define SMBUS_MINVER 1 135 #define SMBUS_MAXVER 1 136 #define SMBUS_PREFVER SMBUS_MODVER 137 138 #endif 139 140 #endif 141