/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family
* of PCI-SCSI IO processors.
*
* Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr>
*
* This driver is derived from the Linux sym53c8xx driver.
* Copyright (C) 1998-2000 Gerard Roudier
*
* The sym53c8xx driver is derived from the ncr53c8xx driver that had been
* a port of the FreeBSD ncr driver to Linux-1.2.13.
*
* The original ncr driver has been written for 386bsd and FreeBSD by
* Wolfgang Stanglmeier <wolf@cologne.de>
* Stefan Esser <se@mi.Uni-Koeln.de>
* Copyright (C) 1994 Wolfgang Stanglmeier
*
* Other major contributions:
*
* NVRAM detection and reading.
* Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>
*
*-----------------------------------------------------------------------------
*/
#ifndef SYM_NVRAM_H
#define SYM_NVRAM_H
#include "sym53c8xx.h"
/*
* Symbios NVRAM data format
*/
#define SYMBIOS_NVRAM_SIZE 368
#define SYMBIOS_NVRAM_ADDRESS 0 x100
struct Symbios_nvram {
/* Header 6 bytes */
u_short type; /* 0x0000 */
u_short byte_count; /* excluding header/trailer */
u_short checksum;
/* Controller set up 20 bytes */
u_char v_major; /* 0x00 */
u_char v_minor; /* 0x30 */
u32 boot_crc;
u_short flags;
#define SYMBIOS_SCAM_ENABLE (1 )
#define SYMBIOS_PARITY_ENABLE (1 <<1 )
#define SYMBIOS_VERBOSE_MSGS (1 <<2 )
#define SYMBIOS_CHS_MAPPING (1 <<3 )
#define SYMBIOS_NO_NVRAM (1 <<3 ) /* ??? */
u_short flags1;
#define SYMBIOS_SCAN_HI_LO (1 )
u_short term_state;
#define SYMBIOS_TERM_CANT_PROGRAM (0 )
#define SYMBIOS_TERM_ENABLED (1 )
#define SYMBIOS_TERM_DISABLED (2 )
u_short rmvbl_flags;
#define SYMBIOS_RMVBL_NO_SUPPORT (0 )
#define SYMBIOS_RMVBL_BOOT_DEVICE (1 )
#define SYMBIOS_RMVBL_MEDIA_INSTALLED (2 )
u_char host_id;
u_char num_hba; /* 0x04 */
u_char num_devices; /* 0x10 */
u_char max_scam_devices; /* 0x04 */
u_char num_valid_scam_devices; /* 0x00 */
u_char flags2;
#define SYMBIOS_AVOID_BUS_RESET (1 <<2 )
/* Boot order 14 bytes * 4 */
struct Symbios_host{
u_short type; /* 4:8xx / 0:nok */
u_short device_id; /* PCI device id */
u_short vendor_id; /* PCI vendor id */
u_char bus_nr; /* PCI bus number */
u_char device_fn; /* PCI device/function number << 3*/
u_short word8;
u_short flags;
#define SYMBIOS_INIT_SCAN_AT_BOOT (1 )
u_short io_port; /* PCI io_port address */
} host[4 ];
/* Targets 8 bytes * 16 */
struct Symbios_target {
u_char flags;
#define SYMBIOS_DISCONNECT_ENABLE (1 )
#define SYMBIOS_SCAN_AT_BOOT_TIME (1 <<1 )
#define SYMBIOS_SCAN_LUNS (1 <<2 )
#define SYMBIOS_QUEUE_TAGS_ENABLED (1 <<3 )
u_char rsvd;
u_char bus_width; /* 0x08/0x10 */
u_char sync_offset;
u_short sync_period; /* 4*period factor */
u_short timeout;
} target[16 ];
/* Scam table 8 bytes * 4 */
struct Symbios_scam {
u_short id;
u_short method;
#define SYMBIOS_SCAM_DEFAULT_METHOD (0 )
#define SYMBIOS_SCAM_DONT_ASSIGN (1 )
#define SYMBIOS_SCAM_SET_SPECIFIC_ID (2 )
#define SYMBIOS_SCAM_USE_ORDER_GIVEN (3 )
u_short status;
#define SYMBIOS_SCAM_UNKNOWN (0 )
#define SYMBIOS_SCAM_DEVICE_NOT_FOUND (1 )
#define SYMBIOS_SCAM_ID_NOT_SET (2 )
#define SYMBIOS_SCAM_ID_VALID (3 )
u_char target_id;
u_char rsvd;
} scam[4 ];
u_char spare_devices[15 *8 ];
u_char trailer[6 ]; /* 0xfe 0xfe 0x00 0x00 0x00 0x00 */
};
typedef struct Symbios_nvram Symbios_nvram;
typedef struct Symbios_host Symbios_host;
typedef struct Symbios_target Symbios_target;
typedef struct Symbios_scam Symbios_scam;
/*
* Tekram NvRAM data format.
*/
#define TEKRAM_NVRAM_SIZE 64
#define TEKRAM_93C46_NVRAM_ADDRESS 0
#define TEKRAM_24C16_NVRAM_ADDRESS 0 x40
struct Tekram_nvram {
struct Tekram_target {
u_char flags;
#define TEKRAM_PARITY_CHECK (1 )
#define TEKRAM_SYNC_NEGO (1 <<1 )
#define TEKRAM_DISCONNECT_ENABLE (1 <<2 )
#define TEKRAM_START_CMD (1 <<3 )
#define TEKRAM_TAGGED_COMMANDS (1 <<4 )
#define TEKRAM_WIDE_NEGO (1 <<5 )
u_char sync_index;
u_short word2;
} target[16 ];
u_char host_id;
u_char flags;
#define TEKRAM_MORE_THAN_2_DRIVES (1 )
#define TEKRAM_DRIVES_SUP_1GB (1 <<1 )
#define TEKRAM_RESET_ON_POWER_ON (1 <<2 )
#define TEKRAM_ACTIVE_NEGATION (1 <<3 )
#define TEKRAM_IMMEDIATE_SEEK (1 <<4 )
#define TEKRAM_SCAN_LUNS (1 <<5 )
#define TEKRAM_REMOVABLE_FLAGS (3 <<6 ) /* 0: disable; */
/* 1: boot device; 2:all */
u_char boot_delay_index;
u_char max_tags_index;
u_short flags1;
#define TEKRAM_F2_F6_ENABLED (1 )
u_short spare[29 ];
};
typedef struct Tekram_nvram Tekram_nvram;
typedef struct Tekram_target Tekram_target;
#ifndef CONFIG_PARISC
struct pdc_initiator { int dummy; };
#endif
/*
* Union of supported NVRAM formats.
*/
struct sym_nvram {
int type;
#define SYM_SYMBIOS_NVRAM (1 )
#define SYM_TEKRAM_NVRAM (2 )
#define SYM_PARISC_PDC (3 )
#if SYM_CONF_NVRAM_SUPPORT
union {
Symbios_nvram Symbios;
Tekram_nvram Tekram;
struct pdc_initiator parisc;
} data;
#endif
};
#if SYM_CONF_NVRAM_SUPPORT
void sym_nvram_setup_host(struct Scsi_Host *shost, struct sym_hcb *np, struct sym_nvram *nvram);
void sym_nvram_setup_target (struct sym_tcb *tp, int target, struct sym_nvram *nvp);
int sym_read_nvram (struct sym_device *np, struct sym_nvram *nvp);
char *sym_nvram_type(struct sym_nvram *nvp);
#else
static inline void sym_nvram_setup_host(struct Scsi_Host *shost, struct sym_hcb *np, struct sym_nvram *nvram) { }
static inline void sym_nvram_setup_target(struct sym_tcb *tp, struct sym_nvram *nvram) { }
static inline int sym_read_nvram(struct sym_device *np, struct sym_nvram *nvp)
{
nvp->type = 0 ;
return 0 ;
}
static inline char *sym_nvram_type(struct sym_nvram *nvp)
{
return "No NVRAM" ;
}
#endif
#endif /* SYM_NVRAM_H */
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