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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family 4 * of PCI-SCSI IO processors.5 *6 * Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr>7 *8 * This driver is derived from the Linux sym53c8xx driver.9 * Copyright (C) 1998-2000 Gerard Roudier10 *11 * The sym53c8xx driver is derived from the ncr53c8xx driver that had been 12 * a port of the FreeBSD ncr driver to Linux-1.2.13.13 *14 * The original ncr driver has been written for 386bsd and FreeBSD by15 * Wolfgang Stanglmeier <wolf@cologne.de>16 * Stefan Esser <se@mi.Uni-Koeln.de>17 * Copyright (C) 1994 Wolfgang Stanglmeier18 *19 * Other major contributions:20 *21 * NVRAM detection and reading.22 * Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>23 *24 *-----------------------------------------------------------------------------25 */26 27#ifndef SYM_NVRAM_H28#define SYM_NVRAM_H29 30#include "sym53c8xx.h"31 32/*33 * Symbios NVRAM data format34 */35#define SYMBIOS_NVRAM_SIZE 36836#define SYMBIOS_NVRAM_ADDRESS 0x10037 38struct Symbios_nvram {39/* Header 6 bytes */40 u_short type; /* 0x0000 */41 u_short byte_count; /* excluding header/trailer */42 u_short checksum;43 44/* Controller set up 20 bytes */45 u_char v_major; /* 0x00 */46 u_char v_minor; /* 0x30 */47 u32 boot_crc;48 u_short flags;49#define SYMBIOS_SCAM_ENABLE (1)50#define SYMBIOS_PARITY_ENABLE (1<<1)51#define SYMBIOS_VERBOSE_MSGS (1<<2)52#define SYMBIOS_CHS_MAPPING (1<<3)53#define SYMBIOS_NO_NVRAM (1<<3) /* ??? */54 u_short flags1;55#define SYMBIOS_SCAN_HI_LO (1)56 u_short term_state;57#define SYMBIOS_TERM_CANT_PROGRAM (0)58#define SYMBIOS_TERM_ENABLED (1)59#define SYMBIOS_TERM_DISABLED (2)60 u_short rmvbl_flags;61#define SYMBIOS_RMVBL_NO_SUPPORT (0)62#define SYMBIOS_RMVBL_BOOT_DEVICE (1)63#define SYMBIOS_RMVBL_MEDIA_INSTALLED (2)64 u_char host_id;65 u_char num_hba; /* 0x04 */66 u_char num_devices; /* 0x10 */67 u_char max_scam_devices; /* 0x04 */68 u_char num_valid_scam_devices; /* 0x00 */69 u_char flags2;70#define SYMBIOS_AVOID_BUS_RESET (1<<2)71 72/* Boot order 14 bytes * 4 */73 struct Symbios_host{74 u_short type; /* 4:8xx / 0:nok */75 u_short device_id; /* PCI device id */76 u_short vendor_id; /* PCI vendor id */77 u_char bus_nr; /* PCI bus number */78 u_char device_fn; /* PCI device/function number << 3*/79 u_short word8;80 u_short flags;81#define SYMBIOS_INIT_SCAN_AT_BOOT (1)82 u_short io_port; /* PCI io_port address */83 } host[4];84 85/* Targets 8 bytes * 16 */86 struct Symbios_target {87 u_char flags;88#define SYMBIOS_DISCONNECT_ENABLE (1)89#define SYMBIOS_SCAN_AT_BOOT_TIME (1<<1)90#define SYMBIOS_SCAN_LUNS (1<<2)91#define SYMBIOS_QUEUE_TAGS_ENABLED (1<<3)92 u_char rsvd;93 u_char bus_width; /* 0x08/0x10 */94 u_char sync_offset;95 u_short sync_period; /* 4*period factor */96 u_short timeout;97 } target[16];98/* Scam table 8 bytes * 4 */99 struct Symbios_scam {100 u_short id;101 u_short method;102#define SYMBIOS_SCAM_DEFAULT_METHOD (0)103#define SYMBIOS_SCAM_DONT_ASSIGN (1)104#define SYMBIOS_SCAM_SET_SPECIFIC_ID (2)105#define SYMBIOS_SCAM_USE_ORDER_GIVEN (3)106 u_short status;107#define SYMBIOS_SCAM_UNKNOWN (0)108#define SYMBIOS_SCAM_DEVICE_NOT_FOUND (1)109#define SYMBIOS_SCAM_ID_NOT_SET (2)110#define SYMBIOS_SCAM_ID_VALID (3)111 u_char target_id;112 u_char rsvd;113 } scam[4];114 115 u_char spare_devices[15*8];116 u_char trailer[6]; /* 0xfe 0xfe 0x00 0x00 0x00 0x00 */117};118typedef struct Symbios_nvram Symbios_nvram;119typedef struct Symbios_host Symbios_host;120typedef struct Symbios_target Symbios_target;121typedef struct Symbios_scam Symbios_scam;122 123/*124 * Tekram NvRAM data format.125 */126#define TEKRAM_NVRAM_SIZE 64127#define TEKRAM_93C46_NVRAM_ADDRESS 0128#define TEKRAM_24C16_NVRAM_ADDRESS 0x40129 130struct Tekram_nvram {131 struct Tekram_target {132 u_char flags;133#define TEKRAM_PARITY_CHECK (1)134#define TEKRAM_SYNC_NEGO (1<<1)135#define TEKRAM_DISCONNECT_ENABLE (1<<2)136#define TEKRAM_START_CMD (1<<3)137#define TEKRAM_TAGGED_COMMANDS (1<<4)138#define TEKRAM_WIDE_NEGO (1<<5)139 u_char sync_index;140 u_short word2;141 } target[16];142 u_char host_id;143 u_char flags;144#define TEKRAM_MORE_THAN_2_DRIVES (1)145#define TEKRAM_DRIVES_SUP_1GB (1<<1)146#define TEKRAM_RESET_ON_POWER_ON (1<<2)147#define TEKRAM_ACTIVE_NEGATION (1<<3)148#define TEKRAM_IMMEDIATE_SEEK (1<<4)149#define TEKRAM_SCAN_LUNS (1<<5)150#define TEKRAM_REMOVABLE_FLAGS (3<<6) /* 0: disable; */151 /* 1: boot device; 2:all */152 u_char boot_delay_index;153 u_char max_tags_index;154 u_short flags1;155#define TEKRAM_F2_F6_ENABLED (1)156 u_short spare[29];157};158typedef struct Tekram_nvram Tekram_nvram;159typedef struct Tekram_target Tekram_target;160 161#ifndef CONFIG_PARISC162struct pdc_initiator { int dummy; };163#endif164 165/*166 * Union of supported NVRAM formats.167 */168struct sym_nvram {169 int type;170#define SYM_SYMBIOS_NVRAM (1)171#define SYM_TEKRAM_NVRAM (2)172#define SYM_PARISC_PDC (3)173#if SYM_CONF_NVRAM_SUPPORT174 union {175 Symbios_nvram Symbios;176 Tekram_nvram Tekram;177 struct pdc_initiator parisc;178 } data;179#endif180};181 182#if SYM_CONF_NVRAM_SUPPORT183void sym_nvram_setup_host(struct Scsi_Host *shost, struct sym_hcb *np, struct sym_nvram *nvram);184void sym_nvram_setup_target (struct sym_tcb *tp, int target, struct sym_nvram *nvp);185int sym_read_nvram (struct sym_device *np, struct sym_nvram *nvp);186char *sym_nvram_type(struct sym_nvram *nvp);187#else188static inline void sym_nvram_setup_host(struct Scsi_Host *shost, struct sym_hcb *np, struct sym_nvram *nvram) { }189static inline void sym_nvram_setup_target(struct sym_tcb *tp, struct sym_nvram *nvram) { }190static inline int sym_read_nvram(struct sym_device *np, struct sym_nvram *nvp)191{192 nvp->type = 0;193 return 0;194}195static inline char *sym_nvram_type(struct sym_nvram *nvp)196{197 return "No NVRAM";198}199#endif200 201#endif /* SYM_NVRAM_H */202