1 /* 2 * Copyright (c) 2014 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> and was subsequently ported 6 * to FreeBSD by Michael Gmelin <freebsd@grem.de> 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * 3. Neither the name of The DragonFly Project nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific, prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 26 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 28 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 29 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 30 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 31 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 32 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * $FreeBSD$ 36 */ 37 38 #ifndef _BUS_SMBUS_INTELGEN4_IG4_VAR_H_ 39 #define _BUS_SMBUS_INTELGEN4_IG4_VAR_H_ 40 41 #include "bus_if.h" 42 #include "device_if.h" 43 #include "pci_if.h" 44 #include "smbus_if.h" 45 46 #define IG4_RBUFSIZE 128 47 #define IG4_RBUFMASK (IG4_RBUFSIZE - 1) 48 49 enum ig4_op { IG4_IDLE, IG4_READ, IG4_WRITE }; 50 51 struct ig4iic_softc { 52 device_t dev; 53 struct intr_config_hook enum_hook; 54 device_t smb; 55 struct resource *regs_res; 56 int regs_rid; 57 struct resource *intr_res; 58 int intr_rid; 59 void *intr_handle; 60 int intr_type; 61 enum ig4_op op; 62 int cmd; 63 int rnext; 64 int rpos; 65 char rbuf[IG4_RBUFSIZE]; 66 int error; 67 uint8_t last_slave; 68 int pci_attached : 1; 69 int use_10bit : 1; 70 int slave_valid : 1; 71 int read_started : 1; 72 int write_started : 1; 73 struct mtx mutex; 74 }; 75 76 typedef struct ig4iic_softc ig4iic_softc_t; 77 78 /* Attach/Detach called from ig4iic_pci_*() */ 79 int ig4iic_attach(ig4iic_softc_t *sc); 80 int ig4iic_detach(ig4iic_softc_t *sc); 81 82 /* SMBus methods */ 83 extern smbus_callback_t ig4iic_smb_callback; 84 extern smbus_quick_t ig4iic_smb_quick; 85 extern smbus_sendb_t ig4iic_smb_sendb; 86 extern smbus_recvb_t ig4iic_smb_recvb; 87 extern smbus_writeb_t ig4iic_smb_writeb; 88 extern smbus_writew_t ig4iic_smb_writew; 89 extern smbus_readb_t ig4iic_smb_readb; 90 extern smbus_readw_t ig4iic_smb_readw; 91 extern smbus_pcall_t ig4iic_smb_pcall; 92 extern smbus_bwrite_t ig4iic_smb_bwrite; 93 extern smbus_bread_t ig4iic_smb_bread; 94 extern smbus_trans_t ig4iic_smb_trans; 95 96 #endif 97