in2000.h
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- /*
- * in2000.h - Linux device driver definitions for the
- * Always IN2000 ISA SCSI card.
- *
- * IMPORTANT: This file is for version 1.33 - 26/Aug/1998
- *
- * Copyright (c) 1996 John Shifflett, GeoLog Consulting
- * john@geolog.com
- * jshiffle@netcom.com
- *
- * 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.
- *
- */
- #ifndef IN2000_H
- #define IN2000_H
- #include <asm/io.h>
- #define PROC_INTERFACE /* add code for /proc/scsi/in2000/xxx interface */
- #ifdef PROC_INTERFACE
- #define PROC_STATISTICS /* add code for keeping various real time stats */
- #endif
- #define SYNC_DEBUG /* extra info on sync negotiation printed */
- #define DEBUGGING_ON /* enable command-line debugging bitmask */
- #define DEBUG_DEFAULTS 0 /* default bitmask - change from command-line */
- #ifdef __i386__
- #define FAST_READ_IO /* No problems with these on my machine */
- #define FAST_WRITE_IO
- #endif
- #ifdef DEBUGGING_ON
- #define DB(f,a) if (hostdata->args & (f)) a;
- #define CHECK_NULL(p,s) /* if (!(p)) {printk("n"); while (1) printk("NP:%sr",(s));} */
- #else
- #define DB(f,a)
- #define CHECK_NULL(p,s)
- #endif
- #define uchar unsigned char
- #define read1_io(a) (inb(hostdata->io_base+(a)))
- #define read2_io(a) (inw(hostdata->io_base+(a)))
- #define write1_io(b,a) (outb((b),hostdata->io_base+(a)))
- #define write2_io(w,a) (outw((w),hostdata->io_base+(a)))
- #ifdef __i386__
- /* These inline assembly defines are derived from a patch
- * sent to me by Bill Earnest. He's done a lot of very
- * valuable thinking, testing, and coding during his effort
- * to squeeze more speed out of this driver. I really think
- * that we are doing IO at close to the maximum now with
- * the fifo. (And yes, insw uses 'edi' while outsw uses
- * 'esi'. Thanks Bill!)
- */
- #define FAST_READ2_IO()
- ({
- int __dummy_1,__dummy_2;
- __asm__ __volatile__ ("n
- cld n
- orl %%ecx, %%ecx n
- jz 1f n
- rep n
- insw (%%dx),%%es:(%%edi) n
- 1: "
- : "=D" (sp) ,"=c" (__dummy_1) ,"=d" (__dummy_2) /* output */
- : "2" (f), "0" (sp), "1" (i) /* input */
- ); /* trashed */
- })
- #define FAST_WRITE2_IO()
- ({
- int __dummy_1,__dummy_2;
- __asm__ __volatile__ ("n
- cld n
- orl %%ecx, %%ecx n
- jz 1f n
- rep n
- outsw %%ds:(%%esi),(%%dx) n
- 1: "
- : "=S" (sp) ,"=c" (__dummy_1) ,"=d" (__dummy_2)/* output */
- : "2" (f), "0" (sp), "1" (i) /* input */
- ); /* trashed */
- })
- #endif
- /* IN2000 io_port offsets */
- #define IO_WD_ASR 0x00 /* R - 3393 auxstat reg */
- #define ASR_INT 0x80
- #define ASR_LCI 0x40
- #define ASR_BSY 0x20
- #define ASR_CIP 0x10
- #define ASR_PE 0x02
- #define ASR_DBR 0x01
- #define IO_WD_ADDR 0x00 /* W - 3393 address reg */
- #define IO_WD_DATA 0x01 /* R/W - rest of 3393 regs */
- #define IO_FIFO 0x02 /* R/W - in2000 dual-port fifo (16 bits) */
- #define IN2000_FIFO_SIZE 2048 /* fifo capacity in bytes */
- #define IO_CARD_RESET 0x03 /* W - in2000 start master reset */
- #define IO_FIFO_COUNT 0x04 /* R - in2000 fifo counter */
- #define IO_FIFO_WRITE 0x05 /* W - clear fifo counter, start write */
- #define IO_FIFO_READ 0x07 /* W - start fifo read */
- #define IO_LED_OFF 0x08 /* W - turn off in2000 activity LED */
- #define IO_SWITCHES 0x08 /* R - read in2000 dip switch */
- #define SW_ADDR0 0x01 /* bit 0 = bit 0 of index to io addr */
- #define SW_ADDR1 0x02 /* bit 1 = bit 1 of index io addr */
- #define SW_DISINT 0x04 /* bit 2 true if ints disabled */
- #define SW_INT0 0x08 /* bit 3 = bit 0 of index to interrupt */
- #define SW_INT1 0x10 /* bit 4 = bit 1 of index to interrupt */
- #define SW_INT_SHIFT 3 /* shift right this amount to right justify int bits */
- #define SW_SYNC_DOS5 0x20 /* bit 5 used by Always BIOS */
- #define SW_FLOPPY 0x40 /* bit 6 true if floppy enabled */
- #define SW_BIT7 0x80 /* bit 7 hardwired true (ground) */
- #define IO_LED_ON 0x09 /* W - turn on in2000 activity LED */
- #define IO_HARDWARE 0x0a /* R - read in2000 hardware rev, stop reset */
- #define IO_INTR_MASK 0x0c /* W - in2000 interrupt mask reg */
- #define IMASK_WD 0x01 /* WD33c93 interrupt mask */
- #define IMASK_FIFO 0x02 /* FIFO interrupt mask */
- /* wd register names */
- #define WD_OWN_ID 0x00
- #define WD_CONTROL 0x01
- #define WD_TIMEOUT_PERIOD 0x02
- #define WD_CDB_1 0x03
- #define WD_CDB_2 0x04
- #define WD_CDB_3 0x05
- #define WD_CDB_4 0x06
- #define WD_CDB_5 0x07
- #define WD_CDB_6 0x08
- #define WD_CDB_7 0x09
- #define WD_CDB_8 0x0a
- #define WD_CDB_9 0x0b
- #define WD_CDB_10 0x0c
- #define WD_CDB_11 0x0d
- #define WD_CDB_12 0x0e
- #define WD_TARGET_LUN 0x0f
- #define WD_COMMAND_PHASE 0x10
- #define WD_SYNCHRONOUS_TRANSFER 0x11
- #define WD_TRANSFER_COUNT_MSB 0x12
- #define WD_TRANSFER_COUNT 0x13
- #define WD_TRANSFER_COUNT_LSB 0x14
- #define WD_DESTINATION_ID 0x15
- #define WD_SOURCE_ID 0x16
- #define WD_SCSI_STATUS 0x17
- #define WD_COMMAND 0x18
- #define WD_DATA 0x19
- #define WD_QUEUE_TAG 0x1a
- #define WD_AUXILIARY_STATUS 0x1f
- /* WD commands */
- #define WD_CMD_RESET 0x00
- #define WD_CMD_ABORT 0x01
- #define WD_CMD_ASSERT_ATN 0x02
- #define WD_CMD_NEGATE_ACK 0x03
- #define WD_CMD_DISCONNECT 0x04
- #define WD_CMD_RESELECT 0x05
- #define WD_CMD_SEL_ATN 0x06
- #define WD_CMD_SEL 0x07
- #define WD_CMD_SEL_ATN_XFER 0x08
- #define WD_CMD_SEL_XFER 0x09
- #define WD_CMD_RESEL_RECEIVE 0x0a
- #define WD_CMD_RESEL_SEND 0x0b
- #define WD_CMD_WAIT_SEL_RECEIVE 0x0c
- #define WD_CMD_TRANS_ADDR 0x18
- #define WD_CMD_TRANS_INFO 0x20
- #define WD_CMD_TRANSFER_PAD 0x21
- #define WD_CMD_SBT_MODE 0x80
- /* SCSI Bus Phases */
- #define PHS_DATA_OUT 0x00
- #define PHS_DATA_IN 0x01
- #define PHS_COMMAND 0x02
- #define PHS_STATUS 0x03
- #define PHS_MESS_OUT 0x06
- #define PHS_MESS_IN 0x07
- /* Command Status Register definitions */
- /* reset state interrupts */
- #define CSR_RESET 0x00
- #define CSR_RESET_AF 0x01
- /* successful completion interrupts */
- #define CSR_RESELECT 0x10
- #define CSR_SELECT 0x11
- #define CSR_SEL_XFER_DONE 0x16
- #define CSR_XFER_DONE 0x18
- /* paused or aborted interrupts */
- #define CSR_MSGIN 0x20
- #define CSR_SDP 0x21
- #define CSR_SEL_ABORT 0x22
- #define CSR_RESEL_ABORT 0x25
- #define CSR_RESEL_ABORT_AM 0x27
- #define CSR_ABORT 0x28
- /* terminated interrupts */
- #define CSR_INVALID 0x40
- #define CSR_UNEXP_DISC 0x41
- #define CSR_TIMEOUT 0x42
- #define CSR_PARITY 0x43
- #define CSR_PARITY_ATN 0x44
- #define CSR_BAD_STATUS 0x45
- #define CSR_UNEXP 0x48
- /* service required interrupts */
- #define CSR_RESEL 0x80
- #define CSR_RESEL_AM 0x81
- #define CSR_DISC 0x85
- #define CSR_SRV_REQ 0x88
- /* Own ID/CDB Size register */
- #define OWNID_EAF 0x08
- #define OWNID_EHP 0x10
- #define OWNID_RAF 0x20
- #define OWNID_FS_8 0x00
- #define OWNID_FS_12 0x40
- #define OWNID_FS_16 0x80
- /* Control register */
- #define CTRL_HSP 0x01
- #define CTRL_HA 0x02
- #define CTRL_IDI 0x04
- #define CTRL_EDI 0x08
- #define CTRL_HHP 0x10
- #define CTRL_POLLED 0x00
- #define CTRL_BURST 0x20
- #define CTRL_BUS 0x40
- #define CTRL_DMA 0x80
- /* Timeout Period register */
- #define TIMEOUT_PERIOD_VALUE 20 /* results in 200 ms. */
- /* Synchronous Transfer Register */
- #define STR_FSS 0x80
- /* Destination ID register */
- #define DSTID_DPD 0x40
- #define DATA_OUT_DIR 0
- #define DATA_IN_DIR 1
- #define DSTID_SCC 0x80
- /* Source ID register */
- #define SRCID_MASK 0x07
- #define SRCID_SIV 0x08
- #define SRCID_DSP 0x20
- #define SRCID_ES 0x40
- #define SRCID_ER 0x80
- #define ILLEGAL_STATUS_BYTE 0xff
- #define DEFAULT_SX_PER 500 /* (ns) fairly safe */
- #define DEFAULT_SX_OFF 0 /* aka async */
- #define OPTIMUM_SX_PER 252 /* (ns) best we can do (mult-of-4) */
- #define OPTIMUM_SX_OFF 12 /* size of in2000 fifo */
- struct sx_period {
- unsigned int period_ns;
- uchar reg_value;
- };
- struct IN2000_hostdata {
- struct Scsi_Host *next;
- uchar chip; /* what kind of wd33c93 chip? */
- uchar microcode; /* microcode rev if 'B' */
- unsigned short io_base; /* IO port base */
- unsigned int dip_switch; /* dip switch settings */
- unsigned int hrev; /* hardware revision of card */
- volatile uchar busy[8]; /* index = target, bit = lun */
- volatile Scsi_Cmnd *input_Q; /* commands waiting to be started */
- volatile Scsi_Cmnd *selecting; /* trying to select this command */
- volatile Scsi_Cmnd *connected; /* currently connected command */
- volatile Scsi_Cmnd *disconnected_Q;/* commands waiting for reconnect */
- uchar state; /* what we are currently doing */
- uchar fifo; /* what the FIFO is up to */
- uchar level2; /* extent to which Level-2 commands are used */
- uchar disconnect; /* disconnect/reselect policy */
- unsigned int args; /* set from command-line argument */
- uchar incoming_msg[8]; /* filled during message_in phase */
- int incoming_ptr; /* mainly used with EXTENDED messages */
- uchar outgoing_msg[8]; /* send this during next message_out */
- int outgoing_len; /* length of outgoing message */
- unsigned int default_sx_per; /* default transfer period for SCSI bus */
- uchar sync_xfer[8]; /* sync_xfer reg settings per target */
- uchar sync_stat[8]; /* status of sync negotiation per target */
- uchar sync_off; /* bit mask: don't use sync with these targets */
- #ifdef PROC_INTERFACE
- uchar proc; /* bit mask: what's in proc output */
- #ifdef PROC_STATISTICS
- unsigned long cmd_cnt[8]; /* # of commands issued per target */
- unsigned long int_cnt; /* # of interrupts serviced */
- unsigned long disc_allowed_cnt[8]; /* # of disconnects allowed per target */
- unsigned long disc_done_cnt[8]; /* # of disconnects done per target*/
- #endif
- #endif
- };
- /* defines for hostdata->chip */
- #define C_WD33C93 0
- #define C_WD33C93A 1
- #define C_WD33C93B 2
- #define C_UNKNOWN_CHIP 100
- /* defines for hostdata->state */
- #define S_UNCONNECTED 0
- #define S_SELECTING 1
- #define S_RUNNING_LEVEL2 2
- #define S_CONNECTED 3
- #define S_PRE_TMP_DISC 4
- #define S_PRE_CMP_DISC 5
- /* defines for hostdata->fifo */
- #define FI_FIFO_UNUSED 0
- #define FI_FIFO_READING 1
- #define FI_FIFO_WRITING 2
- /* defines for hostdata->level2 */
- /* NOTE: only the first 3 are trustworthy at this point -
- * having trouble when more than 1 device is reading/writing
- * at the same time...
- */
- #define L2_NONE 0 /* no combination commands - we get lots of ints */
- #define L2_SELECT 1 /* start with SEL_ATN_XFER, but never resume it */
- #define L2_BASIC 2 /* resume after STATUS ints & RDP messages */
- #define L2_DATA 3 /* resume after DATA_IN/OUT ints */
- #define L2_MOST 4 /* resume after anything except a RESELECT int */
- #define L2_RESELECT 5 /* resume after everything, including RESELECT ints */
- #define L2_ALL 6 /* always resume */
- /* defines for hostdata->disconnect */
- #define DIS_NEVER 0
- #define DIS_ADAPTIVE 1
- #define DIS_ALWAYS 2
- /* defines for hostdata->args */
- #define DB_TEST 1<<0
- #define DB_FIFO 1<<1
- #define DB_QUEUE_COMMAND 1<<2
- #define DB_EXECUTE 1<<3
- #define DB_INTR 1<<4
- #define DB_TRANSFER 1<<5
- #define DB_MASK 0x3f
- #define A_NO_SCSI_RESET 1<<15
- /* defines for hostdata->sync_xfer[] */
- #define SS_UNSET 0
- #define SS_FIRST 1
- #define SS_WAITING 2
- #define SS_SET 3
- /* defines for hostdata->proc */
- #define PR_VERSION 1<<0
- #define PR_INFO 1<<1
- #define PR_STATISTICS 1<<2
- #define PR_CONNECTED 1<<3
- #define PR_INPUTQ 1<<4
- #define PR_DISCQ 1<<5
- #define PR_TEST 1<<6
- #define PR_STOP 1<<7
- #include <linux/version.h>
- # include <linux/init.h>
- # include <linux/spinlock.h>
- # define in2000__INITFUNC(function) __initfunc(function)
- # define in2000__INIT __init
- # define in2000__INITDATA __initdata
- # define CLISPIN_LOCK(flags) spin_lock_irqsave(&io_request_lock, flags)
- # define CLISPIN_UNLOCK(flags) spin_unlock_irqrestore(&io_request_lock, flags)
- int in2000_detect(Scsi_Host_Template *) in2000__INIT;
- int in2000_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
- int in2000_abort(Scsi_Cmnd *);
- void in2000_setup(char *, int *) in2000__INIT;
- int in2000_proc_info(char *, char **, off_t, int, int, int);
- int in2000_biosparam(struct scsi_disk *, kdev_t, int *);
- int in2000_reset(Scsi_Cmnd *, unsigned int);
- #define IN2000_CAN_Q 16
- #define IN2000_SG SG_ALL
- #define IN2000_CPL 2
- #define IN2000_HOST_ID 7
- #define IN2000 { proc_name: "in2000", /* name of /proc/scsi directory entry */
- proc_info: in2000_proc_info, /* pointer to proc info function */
- name: "Always IN2000", /* device name */
- detect: in2000_detect, /* returns number of in2000's found */
- queuecommand: in2000_queuecommand, /* queue scsi command, don't wait */
- abort: in2000_abort, /* abort current command */
- reset: in2000_reset, /* reset scsi bus */
- bios_param: in2000_biosparam, /* figures out BIOS parameters for lilo, etc */
- can_queue: IN2000_CAN_Q, /* max commands we can queue up */
- this_id: IN2000_HOST_ID, /* host-adapter scsi id */
- sg_tablesize: IN2000_SG, /* scatter-gather table size */
- cmd_per_lun: IN2000_CPL, /* commands per lun */
- use_clustering: DISABLE_CLUSTERING, /* ENABLE_CLUSTERING may speed things up */
- use_new_eh_code: 0 /* new error code - not using it yet */
- }
- #endif /* IN2000_H */