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/*
* Initio A100 device driver for Linux.
*
* Copyright (c) 1994-1998 Initio Corporation
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Revision History:
* 06/18/98 HL, Initial production Version 1.02
* 12/19/98 bv, Use spinlocks for 2.1.95 and up
* 06/25/02 Doug Ledford <dledford@redhat.com>
* - This and the i60uscsi.h file are almost identical,
* merged them into a single header used by both .c files.
* 14/06/07 Alan Cox <alan@redhat.com>
* - Grand cleanup and Linuxisation
*/
#define inia100_REVID "Initio INI-A100U2W SCSI device driver; Revision: 1.02d"
#if 1
#define ORC_MAXQUEUE 245
#define ORC_MAXTAGS 64
#else
#define ORC_MAXQUEUE 25
#define ORC_MAXTAGS 8
#endif
#define TOTAL_SG_ENTRY 32
#define MAX_TARGETS 16
#define IMAX_CDB 15
#define SENSE_SIZE 14
/************************************************************************/
/* Scatter-Gather Element Structure */
/************************************************************************/
struct orc_sgent {
u32 base; /* Data Pointer */
u32 length; /* Data Length */
};
/* SCSI related definition */
#define DISC_NOT_ALLOW 0x80 /* Disconnect is not allowed */
#define DISC_ALLOW 0xC0 /* Disconnect is allowed */
#define ORC_OFFSET_SCB 16
#define ORC_MAX_SCBS 250
#define MAX_CHANNELS 2
#define MAX_ESCB_ELE 64
#define TCF_DRV_255_63 0x0400
/********************************************************/
/* Orchid Host Command Set */
/********************************************************/
#define ORC_CMD_NOP 0x00 /* Host command - NOP */
#define ORC_CMD_VERSION 0x01 /* Host command - Get F/W version */
#define ORC_CMD_ECHO 0x02 /* Host command - ECHO */
#define ORC_CMD_SET_NVM 0x03 /* Host command - Set NVRAM */
#define ORC_CMD_GET_NVM 0x04 /* Host command - Get NVRAM */
#define ORC_CMD_GET_BUS_STATUS 0x05 /* Host command - Get SCSI bus status */
#define ORC_CMD_ABORT_SCB 0x06 /* Host command - Abort SCB */
#define ORC_CMD_ISSUE_SCB 0x07 /* Host command - Issue SCB */
/********************************************************/
/* Orchid Register Set */
/********************************************************/
#define ORC_GINTS 0xA0 /* Global Interrupt Status */
#define QINT 0x04 /* Reply Queue Interrupt */
#define ORC_GIMSK 0xA1 /* Global Interrupt MASK */
#define MQINT 0x04 /* Mask Reply Queue Interrupt */
#define ORC_GCFG 0xA2 /* Global Configure */
#define EEPRG 0x01 /* Enable EEPROM programming */
#define ORC_GSTAT 0xA3 /* Global status */
#define WIDEBUS 0x10 /* Wide SCSI Devices connected */
#define ORC_HDATA 0xA4 /* Host Data */
#define ORC_HCTRL 0xA5 /* Host Control */
#define SCSIRST 0x80 /* SCSI bus reset */
#define HDO 0x40 /* Host data out */
#define HOSTSTOP 0x02 /* Host stop RISC engine */
#define DEVRST 0x01 /* Device reset */
#define ORC_HSTUS 0xA6 /* Host Status */
#define HDI 0x02 /* Host data in */
#define RREADY 0x01 /* RISC engine is ready to receive */
#define ORC_NVRAM 0xA7 /* Nvram port address */
#define SE2CS 0x008
#define SE2CLK 0x004
#define SE2DO 0x002
#define SE2DI 0x001
#define ORC_PQUEUE 0xA8 /* Posting queue FIFO */
#define ORC_PQCNT 0xA9 /* Posting queue FIFO Cnt */
#define ORC_RQUEUE 0xAA /* Reply queue FIFO */
#define ORC_RQUEUECNT 0xAB /* Reply queue FIFO Cnt */
#define ORC_FWBASEADR 0xAC /* Firmware base address */
#define ORC_EBIOSADR0 0xB0 /* External Bios address */
#define ORC_EBIOSADR1 0xB1 /* External Bios address */
#define ORC_EBIOSADR2 0xB2 /* External Bios address */
#define ORC_EBIOSDATA 0xB3 /* External Bios address */
#define ORC_SCBSIZE 0xB7 /* SCB size register */
#define ORC_SCBBASE0 0xB8 /* SCB base address 0 */
#define ORC_SCBBASE1 0xBC /* SCB base address 1 */
#define ORC_RISCCTL 0xE0 /* RISC Control */
#define PRGMRST 0x002
#define DOWNLOAD 0x001
#define ORC_PRGMCTR0 0xE2 /* RISC program counter */
#define ORC_PRGMCTR1 0xE3 /* RISC program counter */
#define ORC_RISCRAM 0xEC /* RISC RAM data port 4 bytes */
struct orc_extended_scb { /* Extended SCB */
struct orc_sgent sglist[TOTAL_SG_ENTRY]; /*0 Start of SG list */
struct scsi_cmnd *srb; /*50 SRB Pointer */
};
/***********************************************************************
SCSI Control Block
0x40 bytes long, the last 8 are user bytes
************************************************************************/
struct orc_scb { /* Scsi_Ctrl_Blk */
u8 opcode; /*00 SCB command code&residual */
u8 flags; /*01 SCB Flags */
u8 target; /*02 Target Id */
u8 lun; /*03 Lun */
u32 reserved0; /*04 Reserved for ORCHID must 0 */
u32 xferlen; /*08 Data Transfer Length */
u32 reserved1; /*0C Reserved for ORCHID must 0 */
u32 sg_len; /*10 SG list # * 8 */
u32 sg_addr; /*14 SG List Buf physical Addr */
u32 sg_addrhigh; /*18 SG Buffer high physical Addr */
u8 hastat; /*1C Host Status */
u8 tastat; /*1D Target Status */
u8 status; /*1E SCB status */
u8 link; /*1F Link pointer, default 0xFF */
u8 sense_len; /*20 Sense Allocation Length */
u8 cdb_len; /*21 CDB Length */
u8 ident; /*22 Identify */
u8 tag_msg; /*23 Tag Message */
u8 cdb[IMAX_CDB]; /*24 SCSI CDBs */
u8 scbidx; /*3C Index for this ORCSCB */
u32 sense_addr; /*34 Sense Buffer physical Addr */
struct orc_extended_scb *escb; /*38 Extended SCB Pointer */
/* 64bit pointer or 32bit pointer + reserved ? */
#ifndef CONFIG_64BIT
u8 reserved2[4]; /*3E Reserved for Driver use */
#endif
};
/* Opcodes of ORCSCB_Opcode */
#define ORC_EXECSCSI 0x00 /* SCSI initiator command with residual */
#define ORC_BUSDEVRST 0x01 /* SCSI Bus Device Reset */
/* Status of ORCSCB_Status */
#define ORCSCB_COMPLETE 0x00 /* SCB request completed */
#define ORCSCB_POST 0x01 /* SCB is posted by the HOST */
/* Bit Definition for ORCSCB_Flags */
#define SCF_DISINT 0x01 /* Disable HOST interrupt */
#define SCF_DIR 0x18 /* Direction bits */
#define SCF_NO_DCHK 0x00 /* Direction determined by SCSI */
#define SCF_DIN 0x08 /* From Target to Initiator */
#define SCF_DOUT 0x10 /* From Initiator to Target */
#define SCF_NO_XF 0x18 /* No data transfer */
#define SCF_POLL 0x40
/* Error Codes for ORCSCB_HaStat */
#define HOST_SEL_TOUT 0x11
#define HOST_DO_DU 0x12
#define HOST_BUS_FREE 0x13
#define HOST_BAD_PHAS 0x14
#define HOST_INV_CMD 0x16
#define HOST_SCSI_RST 0x1B
#define HOST_DEV_RST 0x1C
/* Error Codes for ORCSCB_TaStat */
#define TARGET_CHK_COND 0x02
#define TARGET_BUSY 0x08
#define TARGET_TAG_FULL 0x28
/***********************************************************************
Target Device Control Structure
**********************************************************************/
struct orc_target {
u8 TCS_DrvDASD; /* 6 */
u8 TCS_DrvSCSI; /* 7 */
u8 TCS_DrvHead; /* 8 */
u16 TCS_DrvFlags; /* 4 */
u8 TCS_DrvSector; /* 7 */
};
/* Bit Definition for TCF_DrvFlags */
#define TCS_DF_NODASD_SUPT 0x20 /* Suppress OS/2 DASD Mgr support */
#define TCS_DF_NOSCSI_SUPT 0x40 /* Suppress OS/2 SCSI Mgr support */
/***********************************************************************
Host Adapter Control Structure
************************************************************************/
struct orc_host {
unsigned long base; /* Base address */
u8 index; /* Index (Channel)*/
u8 scsi_id; /* H/A SCSI ID */
u8 BIOScfg; /*BIOS configuration */
u8 flags;
u8 max_targets; /* SCSI0MAXTags */
struct orc_scb *scb_virt; /* Virtual Pointer to SCB array */
dma_addr_t scb_phys; /* Scb Physical address */
struct orc_extended_scb *escb_virt; /* Virtual pointer to ESCB Scatter list */
dma_addr_t escb_phys; /* scatter list Physical address */
u8 target_flag[16]; /* target configuration, TCF_EN_TAG */
u8 max_tags[16]; /* ORC_MAX_SCBS */
u32 allocation_map[MAX_CHANNELS][8]; /* Max STB is 256, So 256/32 */
spinlock_t allocation_lock;
struct pci_dev *pdev;
};
/* Bit Definition for HCS_Flags */
#define HCF_SCSI_RESET 0x01 /* SCSI BUS RESET */
#define HCF_PARITY 0x02 /* parity card */
#define HCF_LVDS 0x10 /* parity card */
/* Bit Definition for TargetFlag */
#define TCF_EN_255 0x08
#define TCF_EN_TAG 0x10
#define TCF_BUSY 0x20
#define TCF_DISCONNECT 0x40
#define TCF_SPIN_UP 0x80
/* Bit Definition for HCS_AFlags */
#define HCS_AF_IGNORE 0x01 /* Adapter ignore */
#define HCS_AF_DISABLE_RESET 0x10 /* Adapter disable reset */
#define HCS_AF_DISABLE_ADPT 0x80 /* Adapter disable */
struct orc_nvram {
/*----------header ---------------*/
u8 SubVendorID0; /* 00 - Sub Vendor ID */
u8 SubVendorID1; /* 00 - Sub Vendor ID */
u8 SubSysID0; /* 02 - Sub System ID */
u8 SubSysID1; /* 02 - Sub System ID */
u8 SubClass; /* 04 - Sub Class */
u8 VendorID0; /* 05 - Vendor ID */
u8 VendorID1; /* 05 - Vendor ID */
u8 DeviceID0; /* 07 - Device ID */
u8 DeviceID1; /* 07 - Device ID */
u8 Reserved0[2]; /* 09 - Reserved */
u8 revision; /* 0B - revision of data structure */
/* ----Host Adapter Structure ---- */
u8 NumOfCh; /* 0C - Number of SCSI channel */
u8 BIOSConfig1; /* 0D - BIOS configuration 1 */
u8 BIOSConfig2; /* 0E - BIOS boot channel&target ID */
u8 BIOSConfig3; /* 0F - BIOS configuration 3 */
/* ----SCSI channel Structure ---- */
/* from "CTRL-I SCSI Host Adapter SetUp menu " */
u8 scsi_id; /* 10 - Channel 0 SCSI ID */
u8 SCSI0Config; /* 11 - Channel 0 SCSI configuration */
u8 SCSI0MaxTags; /* 12 - Channel 0 Maximum tags */
u8 SCSI0ResetTime; /* 13 - Channel 0 Reset recovering time */
u8 ReservedforChannel0[2]; /* 14 - Reserved */
/* ----SCSI target Structure ---- */
/* from "CTRL-I SCSI device SetUp menu " */
u8 Target00Config; /* 16 - Channel 0 Target 0 config */
u8 Target01Config; /* 17 - Channel 0 Target 1 config */
u8 Target02Config; /* 18 - Channel 0 Target 2 config */
u8 Target03Config; /* 19 - Channel 0 Target 3 config */
u8 Target04Config; /* 1A - Channel 0 Target 4 config */
u8 Target05Config; /* 1B - Channel 0 Target 5 config */
u8 Target06Config; /* 1C - Channel 0 Target 6 config */
u8 Target07Config; /* 1D - Channel 0 Target 7 config */
u8 Target08Config; /* 1E - Channel 0 Target 8 config */
u8 Target09Config; /* 1F - Channel 0 Target 9 config */
u8 Target0AConfig; /* 20 - Channel 0 Target A config */
u8 Target0BConfig; /* 21 - Channel 0 Target B config */
u8 Target0CConfig; /* 22 - Channel 0 Target C config */
u8 Target0DConfig; /* 23 - Channel 0 Target D config */
u8 Target0EConfig; /* 24 - Channel 0 Target E config */
u8 Target0FConfig; /* 25 - Channel 0 Target F config */
u8 SCSI1Id; /* 26 - Channel 1 SCSI ID */
u8 SCSI1Config; /* 27 - Channel 1 SCSI configuration */
u8 SCSI1MaxTags; /* 28 - Channel 1 Maximum tags */
u8 SCSI1ResetTime; /* 29 - Channel 1 Reset recovering time */
u8 ReservedforChannel1[2]; /* 2A - Reserved */
/* ----SCSI target Structure ---- */
/* from "CTRL-I SCSI device SetUp menu " */
u8 Target10Config; /* 2C - Channel 1 Target 0 config */
u8 Target11Config; /* 2D - Channel 1 Target 1 config */
u8 Target12Config; /* 2E - Channel 1 Target 2 config */
u8 Target13Config; /* 2F - Channel 1 Target 3 config */
u8 Target14Config; /* 30 - Channel 1 Target 4 config */
u8 Target15Config; /* 31 - Channel 1 Target 5 config */
u8 Target16Config; /* 32 - Channel 1 Target 6 config */
u8 Target17Config; /* 33 - Channel 1 Target 7 config */
u8 Target18Config; /* 34 - Channel 1 Target 8 config */
u8 Target19Config; /* 35 - Channel 1 Target 9 config */
u8 Target1AConfig; /* 36 - Channel 1 Target A config */
u8 Target1BConfig; /* 37 - Channel 1 Target B config */
u8 Target1CConfig; /* 38 - Channel 1 Target C config */
u8 Target1DConfig; /* 39 - Channel 1 Target D config */
u8 Target1EConfig; /* 3A - Channel 1 Target E config */
u8 Target1FConfig; /* 3B - Channel 1 Target F config */
u8 reserved[3]; /* 3C - Reserved */
/* ---------- CheckSum ---------- */
u8 CheckSum; /* 3F - Checksum of NVRam */
};
/* Bios Configuration for nvram->BIOSConfig1 */
#define NBC_BIOSENABLE 0x01 /* BIOS enable */
#define NBC_CDROM 0x02 /* Support bootable CDROM */
#define NBC_REMOVABLE 0x04 /* Support removable drive */
/* Bios Configuration for nvram->BIOSConfig2 */
#define NBB_TARGET_MASK 0x0F /* Boot SCSI target ID number */
#define NBB_CHANL_MASK 0xF0 /* Boot SCSI channel number */
/* Bit definition for nvram->SCSIConfig */
#define NCC_BUSRESET 0x01 /* Reset SCSI bus at power up */
#define NCC_PARITYCHK 0x02 /* SCSI parity enable */
#define NCC_LVDS 0x10 /* Enable LVDS */
#define NCC_ACTTERM1 0x20 /* Enable active terminator 1 */
#define NCC_ACTTERM2 0x40 /* Enable active terminator 2 */
#define NCC_AUTOTERM 0x80 /* Enable auto termination */
/* Bit definition for nvram->TargetxConfig */
#define NTC_PERIOD 0x07 /* Maximum Sync. Speed */
#define NTC_1GIGA 0x08 /* 255 head / 63 sectors (64/32) */
#define NTC_NO_SYNC 0x10 /* NO SYNC. NEGO */
#define NTC_NO_WIDESYNC 0x20 /* NO WIDE SYNC. NEGO */
#define NTC_DISC_ENABLE 0x40 /* Enable SCSI disconnect */
#define NTC_SPINUP 0x80 /* Start disk drive */
/* Default NVRam values */
#define NBC_DEFAULT (NBC_ENABLE)
#define NCC_DEFAULT (NCC_BUSRESET | NCC_AUTOTERM | NCC_PARITYCHK)
#define NCC_MAX_TAGS 0x20 /* Maximum tags per target */
#define NCC_RESET_TIME 0x0A /* SCSI RESET recovering time */
#define NTC_DEFAULT (NTC_1GIGA | NTC_NO_WIDESYNC | NTC_DISC_ENABLE)