1/* 2 * Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family 3 * of PCI-SCSI IO processors. 4 * 5 * Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr> 6 * 7 * This driver is derived from the Linux sym53c8xx driver. 8 * Copyright (C) 1998-2000 Gerard Roudier 9 * 10 * The sym53c8xx driver is derived from the ncr53c8xx driver that had been 11 * a port of the FreeBSD ncr driver to Linux-1.2.13. 12 * 13 * The original ncr driver has been written for 386bsd and FreeBSD by 14 * Wolfgang Stanglmeier <wolf@cologne.de> 15 * Stefan Esser <se@mi.Uni-Koeln.de> 16 * Copyright (C) 1994 Wolfgang Stanglmeier 17 * 18 * Other major contributions: 19 * 20 * NVRAM detection and reading. 21 * Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk> 22 * 23 *----------------------------------------------------------------------------- 24 * 25 * This program is free software; you can redistribute it and/or modify 26 * it under the terms of the GNU General Public License as published by 27 * the Free Software Foundation; either version 2 of the License, or 28 * (at your option) any later version. 29 * 30 * This program is distributed in the hope that it will be useful, 31 * but WITHOUT ANY WARRANTY; without even the implied warranty of 32 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 33 * GNU General Public License for more details. 34 * 35 * You should have received a copy of the GNU General Public License 36 * along with this program; if not, write to the Free Software 37 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 38 */ 39 40#ifndef SYM_NVRAM_H 41#define SYM_NVRAM_H 42 43#include "sym53c8xx.h" 44 45/* 46 * Symbios NVRAM data format 47 */ 48#define SYMBIOS_NVRAM_SIZE 368 49#define SYMBIOS_NVRAM_ADDRESS 0x100 50 51struct Symbios_nvram { 52/* Header 6 bytes */ 53 u_short type; /* 0x0000 */ 54 u_short byte_count; /* excluding header/trailer */ 55 u_short checksum; 56 57/* Controller set up 20 bytes */ 58 u_char v_major; /* 0x00 */ 59 u_char v_minor; /* 0x30 */ 60 u32 boot_crc; 61 u_short flags; 62#define SYMBIOS_SCAM_ENABLE (1) 63#define SYMBIOS_PARITY_ENABLE (1<<1) 64#define SYMBIOS_VERBOSE_MSGS (1<<2) 65#define SYMBIOS_CHS_MAPPING (1<<3) 66#define SYMBIOS_NO_NVRAM (1<<3) /* ??? */ 67 u_short flags1; 68#define SYMBIOS_SCAN_HI_LO (1) 69 u_short term_state; 70#define SYMBIOS_TERM_CANT_PROGRAM (0) 71#define SYMBIOS_TERM_ENABLED (1) 72#define SYMBIOS_TERM_DISABLED (2) 73 u_short rmvbl_flags; 74#define SYMBIOS_RMVBL_NO_SUPPORT (0) 75#define SYMBIOS_RMVBL_BOOT_DEVICE (1) 76#define SYMBIOS_RMVBL_MEDIA_INSTALLED (2) 77 u_char host_id; 78 u_char num_hba; /* 0x04 */ 79 u_char num_devices; /* 0x10 */ 80 u_char max_scam_devices; /* 0x04 */ 81 u_char num_valid_scam_devices; /* 0x00 */ 82 u_char flags2; 83#define SYMBIOS_AVOID_BUS_RESET (1<<2) 84 85/* Boot order 14 bytes * 4 */ 86 struct Symbios_host{ 87 u_short type; /* 4:8xx / 0:nok */ 88 u_short device_id; /* PCI device id */ 89 u_short vendor_id; /* PCI vendor id */ 90 u_char bus_nr; /* PCI bus number */ 91 u_char device_fn; /* PCI device/function number << 3*/ 92 u_short word8; 93 u_short flags; 94#define SYMBIOS_INIT_SCAN_AT_BOOT (1) 95 u_short io_port; /* PCI io_port address */ 96 } host[4]; 97 98/* Targets 8 bytes * 16 */ 99 struct Symbios_target { 100 u_char flags; 101#define SYMBIOS_DISCONNECT_ENABLE (1) 102#define SYMBIOS_SCAN_AT_BOOT_TIME (1<<1) 103#define SYMBIOS_SCAN_LUNS (1<<2) 104#define SYMBIOS_QUEUE_TAGS_ENABLED (1<<3) 105 u_char rsvd; 106 u_char bus_width; /* 0x08/0x10 */ 107 u_char sync_offset; 108 u_short sync_period; /* 4*period factor */ 109 u_short timeout; 110 } target[16]; 111/* Scam table 8 bytes * 4 */ 112 struct Symbios_scam { 113 u_short id; 114 u_short method; 115#define SYMBIOS_SCAM_DEFAULT_METHOD (0) 116#define SYMBIOS_SCAM_DONT_ASSIGN (1) 117#define SYMBIOS_SCAM_SET_SPECIFIC_ID (2) 118#define SYMBIOS_SCAM_USE_ORDER_GIVEN (3) 119 u_short status; 120#define SYMBIOS_SCAM_UNKNOWN (0) 121#define SYMBIOS_SCAM_DEVICE_NOT_FOUND (1) 122#define SYMBIOS_SCAM_ID_NOT_SET (2) 123#define SYMBIOS_SCAM_ID_VALID (3) 124 u_char target_id; 125 u_char rsvd; 126 } scam[4]; 127 128 u_char spare_devices[15*8]; 129 u_char trailer[6]; /* 0xfe 0xfe 0x00 0x00 0x00 0x00 */ 130}; 131typedef struct Symbios_nvram Symbios_nvram; 132typedef struct Symbios_host Symbios_host; 133typedef struct Symbios_target Symbios_target; 134typedef struct Symbios_scam Symbios_scam; 135 136/* 137 * Tekram NvRAM data format. 138 */ 139#define TEKRAM_NVRAM_SIZE 64 140#define TEKRAM_93C46_NVRAM_ADDRESS 0 141#define TEKRAM_24C16_NVRAM_ADDRESS 0x40 142 143struct Tekram_nvram { 144 struct Tekram_target { 145 u_char flags; 146#define TEKRAM_PARITY_CHECK (1) 147#define TEKRAM_SYNC_NEGO (1<<1) 148#define TEKRAM_DISCONNECT_ENABLE (1<<2) 149#define TEKRAM_START_CMD (1<<3) 150#define TEKRAM_TAGGED_COMMANDS (1<<4) 151#define TEKRAM_WIDE_NEGO (1<<5) 152 u_char sync_index; 153 u_short word2; 154 } target[16]; 155 u_char host_id; 156 u_char flags; 157#define TEKRAM_MORE_THAN_2_DRIVES (1) 158#define TEKRAM_DRIVES_SUP_1GB (1<<1) 159#define TEKRAM_RESET_ON_POWER_ON (1<<2) 160#define TEKRAM_ACTIVE_NEGATION (1<<3) 161#define TEKRAM_IMMEDIATE_SEEK (1<<4) 162#define TEKRAM_SCAN_LUNS (1<<5) 163#define TEKRAM_REMOVABLE_FLAGS (3<<6) /* 0: disable; */ 164 /* 1: boot device; 2:all */ 165 u_char boot_delay_index; 166 u_char max_tags_index; 167 u_short flags1; 168#define TEKRAM_F2_F6_ENABLED (1) 169 u_short spare[29]; 170}; 171typedef struct Tekram_nvram Tekram_nvram; 172typedef struct Tekram_target Tekram_target; 173 174#ifndef CONFIG_PARISC 175struct pdc_initiator { int dummy; }; 176#endif 177 178/* 179 * Union of supported NVRAM formats. 180 */ 181struct sym_nvram { 182 int type; 183#define SYM_SYMBIOS_NVRAM (1) 184#define SYM_TEKRAM_NVRAM (2) 185#define SYM_PARISC_PDC (3) 186#if SYM_CONF_NVRAM_SUPPORT 187 union { 188 Symbios_nvram Symbios; 189 Tekram_nvram Tekram; 190 struct pdc_initiator parisc; 191 } data; 192#endif 193}; 194 195#if SYM_CONF_NVRAM_SUPPORT 196void sym_nvram_setup_host(struct Scsi_Host *shost, struct sym_hcb *np, struct sym_nvram *nvram); 197void sym_nvram_setup_target (struct sym_tcb *tp, int target, struct sym_nvram *nvp); 198int sym_read_nvram (struct sym_device *np, struct sym_nvram *nvp); 199char *sym_nvram_type(struct sym_nvram *nvp); 200#else 201static inline void sym_nvram_setup_host(struct Scsi_Host *shost, struct sym_hcb *np, struct sym_nvram *nvram) { } 202static inline void sym_nvram_setup_target(struct sym_tcb *tp, struct sym_nvram *nvram) { } 203static inline int sym_read_nvram(struct sym_device *np, struct sym_nvram *nvp) 204{ 205 nvp->type = 0; 206 return 0; 207} 208static inline char *sym_nvram_type(struct sym_nvram *nvp) 209{ 210 return "No NVRAM"; 211} 212#endif 213 214#endif /* SYM_NVRAM_H */ 215