summaryrefslogtreecommitdiff
path: root/linux/src/drivers/scsi/in2000.h
diff options
context:
space:
mode:
authorThomas Bushnell <thomas@gnu.org>1999-04-26 05:58:44 +0000
committerThomas Bushnell <thomas@gnu.org>1999-04-26 05:58:44 +0000
commit86297c41a26f18d924e64fc93321c59cbc4c48dd (patch)
tree376954c6b95b735d361875319a1a2a9db6a27527 /linux/src/drivers/scsi/in2000.h
parent851137902d3e7ad87af177487df3eea53e940a1c (diff)
1998-11-30 OKUJI Yoshinori <okuji@kuicr.kyoto-u.ac.jp>
Clean up linux emulation code to make it architecture-independent as much as possible. * linux: Renamed from linuxdev. * Makefile.in (objfiles): Add linux.o instead of linuxdev.o. (MAKE): New variable. Used for the linux.o target. * configure.in: Add AC_CHECK_TOOL(MAKE, make). * i386/i386/spl.h: Include <i386/ipl.h>, for compatibility with OSF Mach 3.0. Suggested by Elgin Lee <ehl@funghi.com>. * linux/src: Renamed from linux/linux. * linux/dev: Renamed from linux/mach. * linux/Drivers.in (AC_INIT): Use dev/include/linux/autoconf.h, instead of mach/include/linux/autoconf.h. * Makefile.in (all): Target ../linux.o instead of ../linuxdev.o. * linux/dev/drivers/block/genhd.c: Include <machine/spl.h> instead of <i386/ipl.h>. * linux/dev/drivers/net/auto_irq.c: Remove unneeded header files, <i386/ipl.h> and <i386/pic.h>. * linux/dev/init/main.c: Many i386-dependent codes moved to ... * linux/dev/arch/i386/irq.c: ... here. * linux/dev/arch/i386/setup.c: New file. * linux/dev/arch/i386/linux_emul.h: Likewise. * linux/dev/arch/i386/glue/timer.c: Merged into sched.c. * linux/dev/arch/i386/glue/sched.c: Include <machine/spl.h> instead of <i386/ipl.h>, and moved to ... * linux/dev/kernel/sched.c: ... here. * linux/dev/arch/i386/glue/block.c: Include <machine/spl.h> and <linux_emul.h>, instead of i386-dependent header files, and moved to ... * linux/dev/glue/blocl.c: ... here. * linux/dev/arch/i386/glue/net.c: Include <machine/spl.h> and <linux_emul.h>, instead of i386-dependent header files, and moved to ... * linux/dev/glue/net.c: ... here. * linux/dev/arch/i386/glue/misc.c: Remove `x86' and moved to ... * linux/dev/glue/misc.c: ... here. * linux/dev/arch/i386/glue/kmem.c: Moved to ... * linux/dev/glue/kmem.c: ... here.
Diffstat (limited to 'linux/src/drivers/scsi/in2000.h')
-rw-r--r--linux/src/drivers/scsi/in2000.h460
1 files changed, 460 insertions, 0 deletions
diff --git a/linux/src/drivers/scsi/in2000.h b/linux/src/drivers/scsi/in2000.h
new file mode 100644
index 0000000..2a6ad29
--- /dev/null
+++ b/linux/src/drivers/scsi/in2000.h
@@ -0,0 +1,460 @@
+/*
+ * 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 */
+
+#define FAST_READ_IO /* No problems with these on my machine */
+#define FAST_WRITE_IO
+
+#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:%s\r",(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)))
+
+/* 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() \
+ __asm__ __volatile__ ("\n \
+ cld \n \
+ orl %%ecx, %%ecx \n \
+ jz 1f \n \
+ rep \n \
+ insw %%dx \n \
+1: " \
+ : "=D" (sp) /* output */ \
+ : "d" (f), "D" (sp), "c" (i) /* input */ \
+ : "edx", "ecx", "edi" ) /* trashed */
+
+#define FAST_WRITE2_IO() \
+ __asm__ __volatile__ ("\n \
+ cld \n \
+ orl %%ecx, %%ecx \n \
+ jz 1f \n \
+ rep \n \
+ outsw %%dx \n \
+1: " \
+ : "=S" (sp) /* output */ \
+ : "d" (f), "S" (sp), "c" (i) /* input */ \
+ : "edx", "ecx", "esi" ) /* trashed */
+
+
+/* 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>
+
+#if LINUX_VERSION_CODE < 0x020100 /* 2.0.xx */
+# define in2000__INITFUNC(function) function
+# define in2000__INIT
+# define in2000__INITDATA
+# define CLISPIN_LOCK(flags) do { save_flags(flags); cli(); } while(0)
+# define CLISPIN_UNLOCK(flags) restore_flags(flags)
+#else /* 2.1.xxx */
+# include <linux/init.h>
+# include <asm/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)
+#endif
+
+
+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);
+struct proc_dir_entry proc_scsi_in2000;
+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
+
+#if LINUX_VERSION_CODE < 0x020100 /* 2.0.xx */
+
+#define IN2000 { NULL, /* link pointer for modules */ \
+ NULL, /* usage_count for modules */ \
+ &proc_scsi_in2000, /* pointer to /proc/scsi directory entry */ \
+ in2000_proc_info, /* pointer to proc info function */ \
+ "Always IN2000", /* device name */ \
+ in2000_detect, /* returns number of in2000's found */ \
+ NULL, /* optional unload function for modules */ \
+ NULL, /* optional misc info function */ \
+ NULL, /* send scsi command, wait for completion */ \
+ in2000_queuecommand, /* queue scsi command, don't wait */ \
+ in2000_abort, /* abort current command */ \
+ in2000_reset, /* reset scsi bus */ \
+ NULL, /* slave_attach - unused */ \
+ in2000_biosparam, /* figures out BIOS parameters for lilo, etc */ \
+ IN2000_CAN_Q, /* max commands we can queue up */ \
+ IN2000_HOST_ID, /* host-adapter scsi id */ \
+ IN2000_SG, /* scatter-gather table size */ \
+ IN2000_CPL, /* commands per lun */ \
+ 0, /* board counter */ \
+ 0, /* unchecked dma */ \
+ DISABLE_CLUSTERING \
+ }
+
+#else /* 2.1.xxx */
+
+#define IN2000 { proc_dir: &proc_scsi_in2000, /* pointer to /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
+
+
+#endif /* IN2000_H */