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> 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 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #ifndef _BUS_SMBUS_INTELGEN4_IG4_VAR_H_ 36 #define _BUS_SMBUS_INTELGEN4_IG4_VAR_H_ 37 38 #include "bus_if.h" 39 #include "device_if.h" 40 #include "pci_if.h" 41 #include "smbus_if.h" 42 #include "pcidevs.h" 43 44 #define IG4_RBUFSIZE 128 45 #define IG4_RBUFMASK (IG4_RBUFSIZE - 1) 46 47 enum ig4_op { IG4_IDLE, IG4_READ, IG4_WRITE }; 48 49 struct ig4iic_softc { 50 device_t dev; 51 device_t smb; 52 struct resource *regs_res; 53 int regs_rid; 54 bus_space_tag_t regs_t; 55 bus_space_handle_t regs_h; 56 struct resource *intr_res; 57 int intr_rid; 58 void *intr_handle; 59 int intr_type; 60 enum ig4_op op; 61 int cmd; 62 int rnext; 63 int rpos; 64 char rbuf[IG4_RBUFSIZE]; 65 int error; 66 uint8_t last_slave; 67 int pci_attached : 1; 68 int generic_attached : 1; 69 int use_10bit : 1; 70 int slave_valid : 1; 71 int read_started : 1; 72 int write_started : 1; 73 struct lock lk; 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