+++ /dev/null
-/* fdomain.c -- Future Domain TMC-16x0 SCSI driver
- * Created: Sun May 3 18:53:19 1992 by faith@cs.unc.edu
- * Revised: Mon Dec 28 21:59:02 1998 by faith@acm.org
- * Author: Rickard E. Faith, faith@cs.unc.edu
- * Copyright 1992-1996, 1998 Rickard E. Faith (faith@acm.org)
- * Shared IRQ supported added 7/7/2001 Alan Cox <alan@lxorguk.ukuu.org.uk>
-
- * 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; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
-
- **************************************************************************
-
- SUMMARY:
-
- Future Domain BIOS versions supported for autodetect:
- 2.0, 3.0, 3.2, 3.4 (1.0), 3.5 (2.0), 3.6, 3.61
- Chips are supported:
- TMC-1800, TMC-18C50, TMC-18C30, TMC-36C70
- Boards supported:
- Future Domain TMC-1650, TMC-1660, TMC-1670, TMC-1680, TMC-1610M/MER/MEX
- Future Domain TMC-3260 (PCI)
- Quantum ISA-200S, ISA-250MG
- Adaptec AHA-2920A (PCI) [BUT *NOT* AHA-2920C -- use aic7xxx instead]
- IBM ?
- LILO/INSMOD command-line options:
- fdomain=<PORT_BASE>,<IRQ>[,<ADAPTER_ID>]
-
-
-
- NOTE:
-
- The Adaptec AHA-2920C has an Adaptec AIC-7850 chip on it.
- Use the aic7xxx driver for this board.
-
- The Adaptec AHA-2920A has a Future Domain chip on it, so this is the right
- driver for that card. Unfortunately, the boxes will probably just say
- "2920", so you'll have to look on the card for a Future Domain logo, or a
- letter after the 2920.
-
-
-
- THANKS:
-
- Thanks to Adaptec for providing PCI boards for testing. This finally
- enabled me to test the PCI detection and correct it for PCI boards that do
- not have a BIOS at a standard ISA location. For PCI boards, LILO/INSMOD
- command-line options should no longer be needed. --RF 18Nov98
-
-
-
- DESCRIPTION:
-
- This is the Linux low-level SCSI driver for Future Domain TMC-1660/1680
- TMC-1650/1670, and TMC-3260 SCSI host adapters. The 1650 and 1670 have a
- 25-pin external connector, whereas the 1660 and 1680 have a SCSI-2 50-pin
- high-density external connector. The 1670 and 1680 have floppy disk
- controllers built in. The TMC-3260 is a PCI bus card.
-
- Future Domain's older boards are based on the TMC-1800 chip, and this
- driver was originally written for a TMC-1680 board with the TMC-1800 chip.
- More recently, boards are being produced with the TMC-18C50 and TMC-18C30
- chips. The latest and greatest board may not work with this driver. If
- you have to patch this driver so that it will recognize your board's BIOS
- signature, then the driver may fail to function after the board is
- detected.
-
- Please note that the drive ordering that Future Domain implemented in BIOS
- versions 3.4 and 3.5 is the opposite of the order (currently) used by the
- rest of the SCSI industry. If you have BIOS version 3.4 or 3.5, and have
- more than one drive, then the drive ordering will be the reverse of that
- which you see under DOS. For example, under DOS SCSI ID 0 will be D: and
- SCSI ID 1 will be C: (the boot device). Under Linux, SCSI ID 0 will be
- /dev/sda and SCSI ID 1 will be /dev/sdb. The Linux ordering is consistent
- with that provided by all the other SCSI drivers for Linux. If you want
- this changed, you will probably have to patch the higher level SCSI code.
- If you do so, please send me patches that are protected by #ifdefs.
-
- If you have a TMC-8xx or TMC-9xx board, then this is not the driver for
- your board. Please refer to the Seagate driver for more information and
- possible support.
-
-
-
- HISTORY:
-
- Linux Driver Driver
- Version Version Date Support/Notes
-
- 0.0 3 May 1992 V2.0 BIOS; 1800 chip
- 0.97 1.9 28 Jul 1992
- 0.98.6 3.1 27 Nov 1992
- 0.99 3.2 9 Dec 1992
-
- 0.99.3 3.3 10 Jan 1993 V3.0 BIOS
- 0.99.5 3.5 18 Feb 1993
- 0.99.10 3.6 15 May 1993 V3.2 BIOS; 18C50 chip
- 0.99.11 3.17 3 Jul 1993 (now under RCS)
- 0.99.12 3.18 13 Aug 1993
- 0.99.14 5.6 31 Oct 1993 (reselection code removed)
-
- 0.99.15 5.9 23 Jan 1994 V3.4 BIOS (preliminary)
- 1.0.8/1.1.1 5.15 1 Apr 1994 V3.4 BIOS; 18C30 chip (preliminary)
- 1.0.9/1.1.3 5.16 7 Apr 1994 V3.4 BIOS; 18C30 chip
- 1.1.38 5.18 30 Jul 1994 36C70 chip (PCI version of 18C30)
- 1.1.62 5.20 2 Nov 1994 V3.5 BIOS
- 1.1.73 5.22 7 Dec 1994 Quantum ISA-200S board; V2.0 BIOS
-
- 1.1.82 5.26 14 Jan 1995 V3.5 BIOS; TMC-1610M/MER/MEX board
- 1.2.10 5.28 5 Jun 1995 Quantum ISA-250MG board; V2.0, V2.01 BIOS
- 1.3.4 5.31 23 Jun 1995 PCI BIOS-32 detection (preliminary)
- 1.3.7 5.33 4 Jul 1995 PCI BIOS-32 detection
- 1.3.28 5.36 17 Sep 1995 V3.61 BIOS; LILO command-line support
- 1.3.34 5.39 12 Oct 1995 V3.60 BIOS; /proc
- 1.3.72 5.39 8 Feb 1996 Adaptec AHA-2920 board
- 1.3.85 5.41 4 Apr 1996
- 2.0.12 5.44 8 Aug 1996 Use ID 7 for all PCI cards
- 2.1.1 5.45 2 Oct 1996 Update ROM accesses for 2.1.x
- 2.1.97 5.46 23 Apr 1998 Rewritten PCI detection routines [mj]
- 2.1.11x 5.47 9 Aug 1998 Touched for 8 SCSI disk majors support
- 5.48 18 Nov 1998 BIOS no longer needed for PCI detection
- 2.2.0 5.50 28 Dec 1998 Support insmod parameters
-
-
- REFERENCES USED:
-
- "TMC-1800 SCSI Chip Specification (FDC-1800T)", Future Domain Corporation,
- 1990.
-
- "Technical Reference Manual: 18C50 SCSI Host Adapter Chip", Future Domain
- Corporation, January 1992.
-
- "LXT SCSI Products: Specifications and OEM Technical Manual (Revision
- B/September 1991)", Maxtor Corporation, 1991.
-
- "7213S product Manual (Revision P3)", Maxtor Corporation, 1992.
-
- "Draft Proposed American National Standard: Small Computer System
- Interface - 2 (SCSI-2)", Global Engineering Documents. (X3T9.2/86-109,
- revision 10h, October 17, 1991)
-
- Private communications, Drew Eckhardt (drew@cs.colorado.edu) and Eric
- Youngdale (ericy@cais.com), 1992.
-
- Private communication, Tuong Le (Future Domain Engineering department),
- 1994. (Disk geometry computations for Future Domain BIOS version 3.4, and
- TMC-18C30 detection.)
-
- Hogan, Thom. The Programmer's PC Sourcebook. Microsoft Press, 1988. Page
- 60 (2.39: Disk Partition Table Layout).
-
- "18C30 Technical Reference Manual", Future Domain Corporation, 1993, page
- 6-1.
-
-
-
- NOTES ON REFERENCES:
-
- The Maxtor manuals were free. Maxtor telephone technical support is
- great!
-
- The Future Domain manuals were $25 and $35. They document the chip, not
- the TMC-16x0 boards, so some information I had to guess at. In 1992,
- Future Domain sold DOS BIOS source for $250 and the UN*X driver source was
- $750, but these required a non-disclosure agreement, so even if I could
- have afforded them, they would *not* have been useful for writing this
- publicly distributable driver. Future Domain technical support has
- provided some information on the phone and have sent a few useful FAXs.
- They have been much more helpful since they started to recognize that the
- word "Linux" refers to an operating system :-).
-
-
-
- ALPHA TESTERS:
-
- There are many other alpha testers that come and go as the driver
- develops. The people listed here were most helpful in times of greatest
- need (mostly early on -- I've probably left out a few worthy people in
- more recent times):
-
- Todd Carrico (todd@wutc.wustl.edu), Dan Poirier (poirier@cs.unc.edu ), Ken
- Corey (kenc@sol.acs.unt.edu), C. de Bruin (bruin@bruin@sterbbs.nl), Sakari
- Aaltonen (sakaria@vipunen.hit.fi), John Rice (rice@xanth.cs.odu.edu), Brad
- Yearwood (brad@optilink.com), and Ray Toy (toy@soho.crd.ge.com).
-
- Special thanks to Tien-Wan Yang (twyang@cs.uh.edu), who graciously lent me
- his 18C50-based card for debugging. He is the sole reason that this
- driver works with the 18C50 chip.
-
- Thanks to Dave Newman (dnewman@crl.com) for providing initial patches for
- the version 3.4 BIOS.
-
- Thanks to James T. McKinley (mckinley@msupa.pa.msu.edu) for providing
- patches that support the TMC-3260, a PCI bus card with the 36C70 chip.
- The 36C70 chip appears to be "completely compatible" with the 18C30 chip.
-
- Thanks to Eric Kasten (tigger@petroglyph.cl.msu.edu) for providing the
- patch for the version 3.5 BIOS.
-
- Thanks for Stephen Henson (shenson@nyx10.cs.du.edu) for providing the
- patch for the Quantum ISA-200S SCSI adapter.
-
- Thanks to Adam Bowen for the signature to the 1610M/MER/MEX scsi cards, to
- Martin Andrews (andrewm@ccfadm.eeg.ccf.org) for the signature to some
- random TMC-1680 repackaged by IBM; and to Mintak Ng (mintak@panix.com) for
- the version 3.61 BIOS signature.
-
- Thanks for Mark Singer (elf@netcom.com) and Richard Simpson
- (rsimpson@ewrcsdra.demon.co.uk) for more Quantum signatures and detective
- work on the Quantum RAM layout.
-
- Special thanks to James T. McKinley (mckinley@msupa.pa.msu.edu) for
- providing patches for proper PCI BIOS32-mediated detection of the TMC-3260
- card (a PCI bus card with the 36C70 chip). Please send James PCI-related
- bug reports.
-
- Thanks to Tom Cavin (tec@usa1.com) for preliminary command-line option
- patches.
-
- New PCI detection code written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
-
- Insmod parameter code based on patches from Daniel Graham
- <graham@balance.uoregon.edu>.
-
- All of the alpha testers deserve much thanks.
-
-
-
- NOTES ON USER DEFINABLE OPTIONS:
-
- DEBUG: This turns on the printing of various debug information.
-
- ENABLE_PARITY: This turns on SCSI parity checking. With the current
- driver, all attached devices must support SCSI parity. If none of your
- devices support parity, then you can probably get the driver to work by
- turning this option off. I have no way of testing this, however, and it
- would appear that no one ever uses this option.
-
- FIFO_COUNT: The host adapter has an 8K cache (host adapters based on the
- 18C30 chip have a 2k cache). When this many 512 byte blocks are filled by
- the SCSI device, an interrupt will be raised. Therefore, this could be as
- low as 0, or as high as 16. Note, however, that values which are too high
- or too low seem to prevent any interrupts from occurring, and thereby lock
- up the machine. I have found that 2 is a good number, but throughput may
- be increased by changing this value to values which are close to 2.
- Please let me know if you try any different values.
-
- RESELECTION: This is no longer an option, since I gave up trying to
- implement it in version 4.x of this driver. It did not improve
- performance at all and made the driver unstable (because I never found one
- of the two race conditions which were introduced by the multiple
- outstanding command code). The instability seems a very high price to pay
- just so that you don't have to wait for the tape to rewind. If you want
- this feature implemented, send me patches. I'll be happy to send a copy
- of my (broken) driver to anyone who would like to see a copy.
-
- **************************************************************************/
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/blkdev.h>
-#include <linux/spinlock.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/ioport.h>
-#include <linux/proc_fs.h>
-#include <linux/pci.h>
-#include <linux/stat.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/slab.h>
-#include <scsi/scsicam.h>
-
-
-#include <scsi/scsi.h>
-#include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_device.h>
-#include <scsi/scsi_host.h>
-#include <scsi/scsi_ioctl.h>
-#include "fdomain.h"
-
-#ifndef PCMCIA
-MODULE_AUTHOR("Rickard E. Faith");
-MODULE_DESCRIPTION("Future domain SCSI driver");
-MODULE_LICENSE("GPL");
-#endif
-
-
-#define VERSION "$Revision: 5.51 $"
-
-/* START OF USER DEFINABLE OPTIONS */
-
-#define DEBUG 0 /* Enable debugging output */
-#define ENABLE_PARITY 1 /* Enable SCSI Parity */
-#define FIFO_COUNT 2 /* Number of 512 byte blocks before INTR */
-
-/* END OF USER DEFINABLE OPTIONS */
-
-#if DEBUG
-#define EVERY_ACCESS 0 /* Write a line on every scsi access */
-#define ERRORS_ONLY 1 /* Only write a line if there is an error */
-#define DEBUG_DETECT 0 /* Debug fdomain_16x0_detect() */
-#define DEBUG_MESSAGES 1 /* Debug MESSAGE IN phase */
-#define DEBUG_ABORT 1 /* Debug abort() routine */
-#define DEBUG_RESET 1 /* Debug reset() routine */
-#define DEBUG_RACE 1 /* Debug interrupt-driven race condition */
-#else
-#define EVERY_ACCESS 0 /* LEAVE THESE ALONE--CHANGE THE ONES ABOVE */
-#define ERRORS_ONLY 0
-#define DEBUG_DETECT 0
-#define DEBUG_MESSAGES 0
-#define DEBUG_ABORT 0
-#define DEBUG_RESET 0
-#define DEBUG_RACE 0
-#endif
-
-/* Errors are reported on the line, so we don't need to report them again */
-#if EVERY_ACCESS
-#undef ERRORS_ONLY
-#define ERRORS_ONLY 0
-#endif
-
-#if ENABLE_PARITY
-#define PARITY_MASK 0x08
-#else
-#define PARITY_MASK 0x00
-#endif
-
-enum chip_type {
- unknown = 0x00,
- tmc1800 = 0x01,
- tmc18c50 = 0x02,
- tmc18c30 = 0x03,
-};
-
-enum {
- in_arbitration = 0x02,
- in_selection = 0x04,
- in_other = 0x08,
- disconnect = 0x10,
- aborted = 0x20,
- sent_ident = 0x40,
-};
-
-enum in_port_type {
- Read_SCSI_Data = 0,
- SCSI_Status = 1,
- TMC_Status = 2,
- FIFO_Status = 3, /* tmc18c50/tmc18c30 only */
- Interrupt_Cond = 4, /* tmc18c50/tmc18c30 only */
- LSB_ID_Code = 5,
- MSB_ID_Code = 6,
- Read_Loopback = 7,
- SCSI_Data_NoACK = 8,
- Interrupt_Status = 9,
- Configuration1 = 10,
- Configuration2 = 11, /* tmc18c50/tmc18c30 only */
- Read_FIFO = 12,
- FIFO_Data_Count = 14
-};
-
-enum out_port_type {
- Write_SCSI_Data = 0,
- SCSI_Cntl = 1,
- Interrupt_Cntl = 2,
- SCSI_Mode_Cntl = 3,
- TMC_Cntl = 4,
- Memory_Cntl = 5, /* tmc18c50/tmc18c30 only */
- Write_Loopback = 7,
- IO_Control = 11, /* tmc18c30 only */
- Write_FIFO = 12
-};
-
-/* .bss will zero all the static variables below */
-static int port_base;
-static unsigned long bios_base;
-static void __iomem * bios_mem;
-static int bios_major;
-static int bios_minor;
-static int PCI_bus;
-#ifdef CONFIG_PCI
-static struct pci_dev *PCI_dev;
-#endif
-static int Quantum; /* Quantum board variant */
-static int interrupt_level;
-static volatile int in_command;
-static struct scsi_cmnd *current_SC;
-static enum chip_type chip = unknown;
-static int adapter_mask;
-static int this_id;
-static int setup_called;
-
-#if DEBUG_RACE
-static volatile int in_interrupt_flag;
-#endif
-
-static int FIFO_Size = 0x2000; /* 8k FIFO for
- pre-tmc18c30 chips */
-
-static irqreturn_t do_fdomain_16x0_intr( int irq, void *dev_id );
-/* Allow insmod parameters to be like LILO parameters. For example:
- insmod fdomain fdomain=0x140,11 */
-static char * fdomain = NULL;
-module_param(fdomain, charp, 0);
-
-#ifndef PCMCIA
-
-static unsigned long addresses[] = {
- 0xc8000,
- 0xca000,
- 0xce000,
- 0xde000,
- 0xcc000, /* Extra addresses for PCI boards */
- 0xd0000,
- 0xe0000,
-};
-#define ADDRESS_COUNT ARRAY_SIZE(addresses)
-
-static unsigned short ports[] = { 0x140, 0x150, 0x160, 0x170 };
-#define PORT_COUNT ARRAY_SIZE(ports)
-
-static unsigned short ints[] = { 3, 5, 10, 11, 12, 14, 15, 0 };
-
-#endif /* !PCMCIA */
-
-/*
-
- READ THIS BEFORE YOU ADD A SIGNATURE!
-
- READING THIS SHORT NOTE CAN SAVE YOU LOTS OF TIME!
-
- READ EVERY WORD, ESPECIALLY THE WORD *NOT*
-
- This driver works *ONLY* for Future Domain cards using the TMC-1800,
- TMC-18C50, or TMC-18C30 chip. This includes models TMC-1650, 1660, 1670,
- and 1680. These are all 16-bit cards.
-
- The following BIOS signature signatures are for boards which do *NOT*
- work with this driver (these TMC-8xx and TMC-9xx boards may work with the
- Seagate driver):
-
- FUTURE DOMAIN CORP. (C) 1986-1988 V4.0I 03/16/88
- FUTURE DOMAIN CORP. (C) 1986-1989 V5.0C2/14/89
- FUTURE DOMAIN CORP. (C) 1986-1989 V6.0A7/28/89
- FUTURE DOMAIN CORP. (C) 1986-1990 V6.0105/31/90
- FUTURE DOMAIN CORP. (C) 1986-1990 V6.0209/18/90
- FUTURE DOMAIN CORP. (C) 1986-1990 V7.009/18/90
- FUTURE DOMAIN CORP. (C) 1992 V8.00.004/02/92
-
- (The cards which do *NOT* work are all 8-bit cards -- although some of
- them have a 16-bit form-factor, the upper 8-bits are used only for IRQs
- and are *NOT* used for data. You can tell the difference by following
- the tracings on the circuit board -- if only the IRQ lines are involved,
- you have a "8-bit" card, and should *NOT* use this driver.)
-
-*/
-
-#ifndef PCMCIA
-
-static struct signature {
- const char *signature;
- int sig_offset;
- int sig_length;
- int major_bios_version;
- int minor_bios_version;
- int flag; /* 1 == PCI_bus, 2 == ISA_200S, 3 == ISA_250MG, 4 == ISA_200S */
-} signatures[] = {
- /* 1 2 3 4 5 6 */
- /* 123456789012345678901234567890123456789012345678901234567890 */
- { "FUTURE DOMAIN CORP. (C) 1986-1990 1800-V2.07/28/89", 5, 50, 2, 0, 0 },
- { "FUTURE DOMAIN CORP. (C) 1986-1990 1800-V1.07/28/89", 5, 50, 2, 0, 0 },
- { "FUTURE DOMAIN CORP. (C) 1986-1990 1800-V2.07/28/89", 72, 50, 2, 0, 2 },
- { "FUTURE DOMAIN CORP. (C) 1986-1990 1800-V2.0", 73, 43, 2, 0, 3 },
- { "FUTURE DOMAIN CORP. (C) 1991 1800-V2.0.", 72, 39, 2, 0, 4 },
- { "FUTURE DOMAIN CORP. (C) 1992 V3.00.004/02/92", 5, 44, 3, 0, 0 },
- { "FUTURE DOMAIN TMC-18XX (C) 1993 V3.203/12/93", 5, 44, 3, 2, 0 },
- { "IBM F1 P2 BIOS v1.0104/29/93", 5, 28, 3, -1, 0 },
- { "Future Domain Corp. V1.0008/18/93", 5, 33, 3, 4, 0 },
- { "Future Domain Corp. V1.0008/18/93", 26, 33, 3, 4, 1 },
- { "Adaptec AHA-2920 PCI-SCSI Card", 42, 31, 3, -1, 1 },
- { "IBM F1 P264/32", 5, 14, 3, -1, 1 },
- /* This next signature may not be a 3.5 bios */
- { "Future Domain Corp. V2.0108/18/93", 5, 33, 3, 5, 0 },
- { "FUTURE DOMAIN CORP. V3.5008/18/93", 5, 34, 3, 5, 0 },
- { "FUTURE DOMAIN 18c30/18c50/1800 (C) 1994 V3.5", 5, 44, 3, 5, 0 },
- { "FUTURE DOMAIN CORP. V3.6008/18/93", 5, 34, 3, 6, 0 },
- { "FUTURE DOMAIN CORP. V3.6108/18/93", 5, 34, 3, 6, 0 },
- { "FUTURE DOMAIN TMC-18XX", 5, 22, -1, -1, 0 },
-
- /* READ NOTICE ABOVE *BEFORE* YOU WASTE YOUR TIME ADDING A SIGNATURE
- Also, fix the disk geometry code for your signature and send your
- changes for faith@cs.unc.edu. Above all, do *NOT* change any old
- signatures!
-
- Note that the last line will match a "generic" 18XX bios. Because
- Future Domain has changed the host SCSI ID and/or the location of the
- geometry information in the on-board RAM area for each of the first
- three BIOS's, it is still important to enter a fully qualified
- signature in the table for any new BIOS's (after the host SCSI ID and
- geometry location are verified). */
-};
-
-#define SIGNATURE_COUNT ARRAY_SIZE(signatures)
-
-#endif /* !PCMCIA */
-
-static void print_banner( struct Scsi_Host *shpnt )
-{
- if (!shpnt) return; /* This won't ever happen */
-
- if (bios_major < 0 && bios_minor < 0) {
- printk(KERN_INFO "scsi%d: <fdomain> No BIOS; using scsi id %d\n",
- shpnt->host_no, shpnt->this_id);
- } else {
- printk(KERN_INFO "scsi%d: <fdomain> BIOS version ", shpnt->host_no);
-
- if (bios_major >= 0) printk("%d.", bios_major);
- else printk("?.");
-
- if (bios_minor >= 0) printk("%d", bios_minor);
- else printk("?.");
-
- printk( " at 0x%lx using scsi id %d\n",
- bios_base, shpnt->this_id );
- }
-
- /* If this driver works for later FD PCI
- boards, we will have to modify banner
- for additional PCI cards, but for now if
- it's PCI it's a TMC-3260 - JTM */
- printk(KERN_INFO "scsi%d: <fdomain> %s chip at 0x%x irq ",
- shpnt->host_no,
- chip == tmc1800 ? "TMC-1800" : (chip == tmc18c50 ? "TMC-18C50" : (chip == tmc18c30 ? (PCI_bus ? "TMC-36C70 (PCI bus)" : "TMC-18C30") : "Unknown")),
- port_base);
-
- if (interrupt_level)
- printk("%d", interrupt_level);
- else
- printk("<none>");
-
- printk( "\n" );
-}
-
-int fdomain_setup(char *str)
-{
- int ints[4];
-
- (void)get_options(str, ARRAY_SIZE(ints), ints);
-
- if (setup_called++ || ints[0] < 2 || ints[0] > 3) {
- printk(KERN_INFO "scsi: <fdomain> Usage: fdomain=<PORT_BASE>,<IRQ>[,<ADAPTER_ID>]\n");
- printk(KERN_ERR "scsi: <fdomain> Bad LILO/INSMOD parameters?\n");
- return 0;
- }
-
- port_base = ints[0] >= 1 ? ints[1] : 0;
- interrupt_level = ints[0] >= 2 ? ints[2] : 0;
- this_id = ints[0] >= 3 ? ints[3] : 0;
-
- bios_major = bios_minor = -1; /* Use geometry for BIOS version >= 3.4 */
- ++setup_called;
- return 1;
-}
-
-__setup("fdomain=", fdomain_setup);
-
-
-static void do_pause(unsigned amount) /* Pause for amount*10 milliseconds */
-{
- mdelay(10*amount);
-}
-
-static inline void fdomain_make_bus_idle( void )
-{
- outb(0, port_base + SCSI_Cntl);
- outb(0, port_base + SCSI_Mode_Cntl);
- if (chip == tmc18c50 || chip == tmc18c30)
- outb(0x21 | PARITY_MASK, port_base + TMC_Cntl); /* Clear forced intr. */
- else
- outb(0x01 | PARITY_MASK, port_base + TMC_Cntl);
-}
-
-static int fdomain_is_valid_port( int port )
-{
-#if DEBUG_DETECT
- printk( " (%x%x),",
- inb( port + MSB_ID_Code ), inb( port + LSB_ID_Code ) );
-#endif
-
- /* The MCA ID is a unique id for each MCA compatible board. We
- are using ISA boards, but Future Domain provides the MCA ID
- anyway. We can use this ID to ensure that this is a Future
- Domain TMC-1660/TMC-1680.
- */
-
- if (inb( port + LSB_ID_Code ) != 0xe9) { /* test for 0x6127 id */
- if (inb( port + LSB_ID_Code ) != 0x27) return 0;
- if (inb( port + MSB_ID_Code ) != 0x61) return 0;
- chip = tmc1800;
- } else { /* test for 0xe960 id */
- if (inb( port + MSB_ID_Code ) != 0x60) return 0;
- chip = tmc18c50;
-
- /* Try to toggle 32-bit mode. This only
- works on an 18c30 chip. (User reports
- say this works, so we should switch to
- it in the near future.) */
-
- outb( 0x80, port + IO_Control );
- if ((inb( port + Configuration2 ) & 0x80) == 0x80) {
- outb( 0x00, port + IO_Control );
- if ((inb( port + Configuration2 ) & 0x80) == 0x00) {
- chip = tmc18c30;
- FIFO_Size = 0x800; /* 2k FIFO */
- }
- }
- /* If that failed, we are an 18c50. */
- }
-
- return 1;
-}
-
-static int fdomain_test_loopback( void )
-{
- int i;
- int result;
-
- for (i = 0; i < 255; i++) {
- outb( i, port_base + Write_Loopback );
- result = inb( port_base + Read_Loopback );
- if (i != result)
- return 1;
- }
- return 0;
-}
-
-#ifndef PCMCIA
-
-/* fdomain_get_irq assumes that we have a valid MCA ID for a
- TMC-1660/TMC-1680 Future Domain board. Now, check to be sure the
- bios_base matches these ports. If someone was unlucky enough to have
- purchased more than one Future Domain board, then they will have to
- modify this code, as we only detect one board here. [The one with the
- lowest bios_base.]
-
- Note that this routine is only used for systems without a PCI BIOS32
- (e.g., ISA bus). For PCI bus systems, this routine will likely fail
- unless one of the IRQs listed in the ints array is used by the board.
- Sometimes it is possible to use the computer's BIOS setup screen to
- configure a PCI system so that one of these IRQs will be used by the
- Future Domain card. */
-
-static int fdomain_get_irq( int base )
-{
- int options = inb(base + Configuration1);
-
-#if DEBUG_DETECT
- printk("scsi: <fdomain> Options = %x\n", options);
-#endif
-
- /* Check for board with lowest bios_base --
- this isn't valid for the 18c30 or for
- boards on the PCI bus, so just assume we
- have the right board. */
-
- if (chip != tmc18c30 && !PCI_bus && addresses[(options & 0xc0) >> 6 ] != bios_base)
- return 0;
- return ints[(options & 0x0e) >> 1];
-}
-
-static int fdomain_isa_detect( int *irq, int *iobase )
-{
- int i, j;
- int base = 0xdeadbeef;
- int flag = 0;
-
-#if DEBUG_DETECT
- printk( "scsi: <fdomain> fdomain_isa_detect:" );
-#endif
-
- for (i = 0; i < ADDRESS_COUNT; i++) {
- void __iomem *p = ioremap(addresses[i], 0x2000);
- if (!p)
- continue;
-#if DEBUG_DETECT
- printk( " %lx(%lx),", addresses[i], bios_base );
-#endif
- for (j = 0; j < SIGNATURE_COUNT; j++) {
- if (check_signature(p + signatures[j].sig_offset,
- signatures[j].signature,
- signatures[j].sig_length )) {
- bios_major = signatures[j].major_bios_version;
- bios_minor = signatures[j].minor_bios_version;
- PCI_bus = (signatures[j].flag == 1);
- Quantum = (signatures[j].flag > 1) ? signatures[j].flag : 0;
- bios_base = addresses[i];
- bios_mem = p;
- goto found;
- }
- }
- iounmap(p);
- }
-
-found:
- if (bios_major == 2) {
- /* The TMC-1660/TMC-1680 has a RAM area just after the BIOS ROM.
- Assuming the ROM is enabled (otherwise we wouldn't have been
- able to read the ROM signature :-), then the ROM sets up the
- RAM area with some magic numbers, such as a list of port
- base addresses and a list of the disk "geometry" reported to
- DOS (this geometry has nothing to do with physical geometry).
- */
-
- switch (Quantum) {
- case 2: /* ISA_200S */
- case 3: /* ISA_250MG */
- base = readb(bios_mem + 0x1fa2) + (readb(bios_mem + 0x1fa3) << 8);
- break;
- case 4: /* ISA_200S (another one) */
- base = readb(bios_mem + 0x1fa3) + (readb(bios_mem + 0x1fa4) << 8);
- break;
- default:
- base = readb(bios_mem + 0x1fcc) + (readb(bios_mem + 0x1fcd) << 8);
- break;
- }
-
-#if DEBUG_DETECT
- printk( " %x,", base );
-#endif
-
- for (i = 0; i < PORT_COUNT; i++) {
- if (base == ports[i]) {
- if (!request_region(base, 0x10, "fdomain"))
- break;
- if (!fdomain_is_valid_port(base)) {
- release_region(base, 0x10);
- break;
- }
- *irq = fdomain_get_irq( base );
- *iobase = base;
- return 1;
- }
- }
-
- /* This is a bad sign. It usually means that someone patched the
- BIOS signature list (the signatures variable) to contain a BIOS
- signature for a board *OTHER THAN* the TMC-1660/TMC-1680. */
-
-#if DEBUG_DETECT
- printk( " RAM FAILED, " );
-#endif
- }
-
- /* Anyway, the alternative to finding the address in the RAM is to just
- search through every possible port address for one that is attached
- to the Future Domain card. Don't panic, though, about reading all
- these random port addresses -- there are rumors that the Future
- Domain BIOS does something very similar.
-
- Do not, however, check ports which the kernel knows are being used by
- another driver. */
-
- for (i = 0; i < PORT_COUNT; i++) {
- base = ports[i];
- if (!request_region(base, 0x10, "fdomain")) {
-#if DEBUG_DETECT
- printk( " (%x inuse),", base );
-#endif
- continue;
- }
-#if DEBUG_DETECT
- printk( " %x,", base );
-#endif
- flag = fdomain_is_valid_port(base);
- if (flag)
- break;
- release_region(base, 0x10);
- }
-
-#if DEBUG_DETECT
- if (flag) printk( " SUCCESS\n" );
- else printk( " FAILURE\n" );
-#endif
-
- if (!flag) return 0; /* iobase not found */
-
- *irq = fdomain_get_irq( base );
- *iobase = base;
-
- return 1; /* success */
-}
-
-#else /* PCMCIA */
-
-static int fdomain_isa_detect( int *irq, int *iobase )
-{
- if (irq)
- *irq = 0;
- if (iobase)
- *iobase = 0;
- return 0;
-}
-
-#endif /* !PCMCIA */
-
-
-/* PCI detection function: int fdomain_pci_bios_detect(int* irq, int*
- iobase) This function gets the Interrupt Level and I/O base address from
- the PCI configuration registers. */
-
-#ifdef CONFIG_PCI
-static int fdomain_pci_bios_detect( int *irq, int *iobase, struct pci_dev **ret_pdev )
-{
- unsigned int pci_irq; /* PCI interrupt line */
- unsigned long pci_base; /* PCI I/O base address */
- struct pci_dev *pdev = NULL;
-
-#if DEBUG_DETECT
- /* Tell how to print a list of the known PCI devices from bios32 and
- list vendor and device IDs being used if in debug mode. */
-
- printk( "scsi: <fdomain> INFO: use lspci -v to see list of PCI devices\n" );
- printk( "scsi: <fdomain> TMC-3260 detect:"
- " Using Vendor ID: 0x%x and Device ID: 0x%x\n",
- PCI_VENDOR_ID_FD,
- PCI_DEVICE_ID_FD_36C70 );
-#endif
-
- if ((pdev = pci_get_device(PCI_VENDOR_ID_FD, PCI_DEVICE_ID_FD_36C70, pdev)) == NULL)
- return 0;
- if (pci_enable_device(pdev))
- goto fail;
-
-#if DEBUG_DETECT
- printk( "scsi: <fdomain> TMC-3260 detect:"
- " PCI bus %u, device %u, function %u\n",
- pdev->bus->number,
- PCI_SLOT(pdev->devfn),
- PCI_FUNC(pdev->devfn));
-#endif
-
- /* We now have the appropriate device function for the FD board so we
- just read the PCI config info from the registers. */
-
- pci_base = pci_resource_start(pdev, 0);
- pci_irq = pdev->irq;
-
- if (!request_region( pci_base, 0x10, "fdomain" ))
- goto fail;
-
- /* Now we have the I/O base address and interrupt from the PCI
- configuration registers. */
-
- *irq = pci_irq;
- *iobase = pci_base;
- *ret_pdev = pdev;
-
-#if DEBUG_DETECT
- printk( "scsi: <fdomain> TMC-3260 detect:"
- " IRQ = %d, I/O base = 0x%x [0x%lx]\n", *irq, *iobase, pci_base );
-#endif
-
- if (!fdomain_is_valid_port(pci_base)) {
- printk(KERN_ERR "scsi: <fdomain> PCI card detected, but driver not loaded (invalid port)\n" );
- release_region(pci_base, 0x10);
- goto fail;
- }
-
- /* Fill in a few global variables. Ugh. */
- bios_major = bios_minor = -1;
- PCI_bus = 1;
- PCI_dev = pdev;
- Quantum = 0;
- bios_base = 0;
-
- return 1;
-fail:
- pci_dev_put(pdev);
- return 0;
-}
-
-#endif
-
-struct Scsi_Host *__fdomain_16x0_detect(struct scsi_host_template *tpnt )
-{
- int retcode;
- struct Scsi_Host *shpnt;
- struct pci_dev *pdev = NULL;
-
- if (setup_called) {
-#if DEBUG_DETECT
- printk( "scsi: <fdomain> No BIOS, using port_base = 0x%x, irq = %d\n",
- port_base, interrupt_level );
-#endif
- if (!request_region(port_base, 0x10, "fdomain")) {
- printk( "scsi: <fdomain> port 0x%x is busy\n", port_base );
- printk( "scsi: <fdomain> Bad LILO/INSMOD parameters?\n" );
- return NULL;
- }
- if (!fdomain_is_valid_port( port_base )) {
- printk( "scsi: <fdomain> Cannot locate chip at port base 0x%x\n",
- port_base );
- printk( "scsi: <fdomain> Bad LILO/INSMOD parameters?\n" );
- release_region(port_base, 0x10);
- return NULL;
- }
- } else {
- int flag = 0;
-
-#ifdef CONFIG_PCI
- /* Try PCI detection first */
- flag = fdomain_pci_bios_detect( &interrupt_level, &port_base, &pdev );
-#endif
- if (!flag) {
- /* Then try ISA bus detection */
- flag = fdomain_isa_detect( &interrupt_level, &port_base );
-
- if (!flag) {
- printk( "scsi: <fdomain> Detection failed (no card)\n" );
- return NULL;
- }
- }
- }
-
- fdomain_16x0_host_reset(NULL);
-
- if (fdomain_test_loopback()) {
- printk(KERN_ERR "scsi: <fdomain> Detection failed (loopback test failed at port base 0x%x)\n", port_base);
- if (setup_called) {
- printk(KERN_ERR "scsi: <fdomain> Bad LILO/INSMOD parameters?\n");
- }
- goto fail;
- }
-
- if (this_id) {
- tpnt->this_id = (this_id & 0x07);
- adapter_mask = (1 << tpnt->this_id);
- } else {
- if (PCI_bus || (bios_major == 3 && bios_minor >= 2) || bios_major < 0) {
- tpnt->this_id = 7;
- adapter_mask = 0x80;
- } else {
- tpnt->this_id = 6;
- adapter_mask = 0x40;
- }
- }
-
-/* Print out a banner here in case we can't
- get resources. */
-
- shpnt = scsi_register( tpnt, 0 );
- if(shpnt == NULL) {
- release_region(port_base, 0x10);
- return NULL;
- }
- shpnt->irq = interrupt_level;
- shpnt->io_port = port_base;
- shpnt->n_io_port = 0x10;
- print_banner( shpnt );
-
- /* Log IRQ with kernel */
- if (!interrupt_level) {
- printk(KERN_ERR "scsi: <fdomain> Card Detected, but driver not loaded (no IRQ)\n" );
- goto fail;
- } else {
- /* Register the IRQ with the kernel */
-
- retcode = request_irq( interrupt_level,
- do_fdomain_16x0_intr, pdev?IRQF_SHARED:0, "fdomain", shpnt);
-
- if (retcode < 0) {
- if (retcode == -EINVAL) {
- printk(KERN_ERR "scsi: <fdomain> IRQ %d is bad!\n", interrupt_level );
- printk(KERN_ERR " This shouldn't happen!\n" );
- printk(KERN_ERR " Send mail to faith@acm.org\n" );
- } else if (retcode == -EBUSY) {
- printk(KERN_ERR "scsi: <fdomain> IRQ %d is already in use!\n", interrupt_level );
- printk(KERN_ERR " Please use another IRQ!\n" );
- } else {
- printk(KERN_ERR "scsi: <fdomain> Error getting IRQ %d\n", interrupt_level );
- printk(KERN_ERR " This shouldn't happen!\n" );
- printk(KERN_ERR " Send mail to faith@acm.org\n" );
- }
- printk(KERN_ERR "scsi: <fdomain> Detected, but driver not loaded (IRQ)\n" );
- goto fail;
- }
- }
- return shpnt;
-fail:
- pci_dev_put(pdev);
- release_region(port_base, 0x10);
- return NULL;
-}
-
-static int fdomain_16x0_detect(struct scsi_host_template *tpnt)
-{
- if (fdomain)
- fdomain_setup(fdomain);
- return (__fdomain_16x0_detect(tpnt) != NULL);
-}
-
-static const char *fdomain_16x0_info( struct Scsi_Host *ignore )
-{
- static char buffer[128];
- char *pt;
-
- strcpy( buffer, "Future Domain 16-bit SCSI Driver Version" );
- if (strchr( VERSION, ':')) { /* Assume VERSION is an RCS Revision string */
- strcat( buffer, strchr( VERSION, ':' ) + 1 );
- pt = strrchr( buffer, '$') - 1;
- if (!pt) /* Stripped RCS Revision string? */
- pt = buffer + strlen( buffer ) - 1;
- if (*pt != ' ')
- ++pt;
- *pt = '\0';
- } else { /* Assume VERSION is a number */
- strcat( buffer, " " VERSION );
- }
-
- return buffer;
-}
-
-#if 0
-static int fdomain_arbitrate( void )
-{
- int status = 0;
- unsigned long timeout;
-
-#if EVERY_ACCESS
- printk( "fdomain_arbitrate()\n" );
-#endif
-
- outb(0x00, port_base + SCSI_Cntl); /* Disable data drivers */
- outb(adapter_mask, port_base + SCSI_Data_NoACK); /* Set our id bit */
- outb(0x04 | PARITY_MASK, port_base + TMC_Cntl); /* Start arbitration */
-
- timeout = 500;
- do {
- status = inb(port_base + TMC_Status); /* Read adapter status */
- if (status & 0x02) /* Arbitration complete */
- return 0;
- mdelay(1); /* Wait one millisecond */
- } while (--timeout);
-
- /* Make bus idle */
- fdomain_make_bus_idle();
-
-#if EVERY_ACCESS
- printk( "Arbitration failed, status = %x\n", status );
-#endif
-#if ERRORS_ONLY
- printk( "scsi: <fdomain> Arbitration failed, status = %x\n", status );
-#endif
- return 1;
-}
-#endif
-
-static int fdomain_select( int target )
-{
- int status;
- unsigned long timeout;
-#if ERRORS_ONLY
- static int flag = 0;
-#endif
-
- outb(0x82, port_base + SCSI_Cntl); /* Bus Enable + Select */
- outb(adapter_mask | (1 << target), port_base + SCSI_Data_NoACK);
-
- /* Stop arbitration and enable parity */
- outb(PARITY_MASK, port_base + TMC_Cntl);
-
- timeout = 350; /* 350 msec */
-
- do {
- status = inb(port_base + SCSI_Status); /* Read adapter status */
- if (status & 1) { /* Busy asserted */
- /* Enable SCSI Bus (on error, should make bus idle with 0) */
- outb(0x80, port_base + SCSI_Cntl);
- return 0;
- }
- mdelay(1); /* wait one msec */
- } while (--timeout);
- /* Make bus idle */
- fdomain_make_bus_idle();
-#if EVERY_ACCESS
- if (!target) printk( "Selection failed\n" );
-#endif
-#if ERRORS_ONLY
- if (!target) {
- if (!flag) /* Skip first failure for all chips. */
- ++flag;
- else
- printk( "scsi: <fdomain> Selection failed\n" );
- }
-#endif
- return 1;
-}
-
-static void my_done(int error)
-{
- if (in_command) {
- in_command = 0;
- outb(0x00, port_base + Interrupt_Cntl);
- fdomain_make_bus_idle();
- current_SC->result = error;
- if (current_SC->scsi_done)
- current_SC->scsi_done( current_SC );
- else panic( "scsi: <fdomain> current_SC->scsi_done() == NULL" );
- } else {
- panic( "scsi: <fdomain> my_done() called outside of command\n" );
- }
-#if DEBUG_RACE
- in_interrupt_flag = 0;
-#endif
-}
-
-static irqreturn_t do_fdomain_16x0_intr(int irq, void *dev_id)
-{
- unsigned long flags;
- int status;
- int done = 0;
- unsigned data_count;
-
- /* The fdomain_16x0_intr is only called via
- the interrupt handler. The goal of the
- sti() here is to allow other
- interruptions while this routine is
- running. */
-
- /* Check for other IRQ sources */
- if ((inb(port_base + TMC_Status) & 0x01) == 0)
- return IRQ_NONE;
-
- /* It is our IRQ */
- outb(0x00, port_base + Interrupt_Cntl);
-
- /* We usually have one spurious interrupt after each command. Ignore it. */
- if (!in_command || !current_SC) { /* Spurious interrupt */
-#if EVERY_ACCESS
- printk( "Spurious interrupt, in_command = %d, current_SC = %x\n",
- in_command, current_SC );
-#endif
- return IRQ_NONE;
- }
-
- /* Abort calls my_done, so we do nothing here. */
- if (current_SC->SCp.phase & aborted) {
-#if DEBUG_ABORT
- printk( "scsi: <fdomain> Interrupt after abort, ignoring\n" );
-#endif
- /*
- return IRQ_HANDLED; */
- }
-
-#if DEBUG_RACE
- ++in_interrupt_flag;
-#endif
-
- if (current_SC->SCp.phase & in_arbitration) {
- status = inb(port_base + TMC_Status); /* Read adapter status */
- if (!(status & 0x02)) {
-#if EVERY_ACCESS
- printk( " AFAIL " );
-#endif
- spin_lock_irqsave(current_SC->device->host->host_lock, flags);
- my_done( DID_BUS_BUSY << 16 );
- spin_unlock_irqrestore(current_SC->device->host->host_lock, flags);
- return IRQ_HANDLED;
- }
- current_SC->SCp.phase = in_selection;
-
- outb(0x40 | FIFO_COUNT, port_base + Interrupt_Cntl);
-
- outb(0x82, port_base + SCSI_Cntl); /* Bus Enable + Select */
- outb(adapter_mask | (1 << scmd_id(current_SC)), port_base + SCSI_Data_NoACK);
-
- /* Stop arbitration and enable parity */
- outb(0x10 | PARITY_MASK, port_base + TMC_Cntl);
-#if DEBUG_RACE
- in_interrupt_flag = 0;
-#endif
- return IRQ_HANDLED;
- } else if (current_SC->SCp.phase & in_selection) {
- status = inb(port_base + SCSI_Status);
- if (!(status & 0x01)) {
- /* Try again, for slow devices */
- if (fdomain_select( scmd_id(current_SC) )) {
-#if EVERY_ACCESS
- printk( " SFAIL " );
-#endif
- spin_lock_irqsave(current_SC->device->host->host_lock, flags);
- my_done( DID_NO_CONNECT << 16 );
- spin_unlock_irqrestore(current_SC->device->host->host_lock, flags);
- return IRQ_HANDLED;
- } else {
-#if EVERY_ACCESS
- printk( " AltSel " );
-#endif
- /* Stop arbitration and enable parity */
- outb(0x10 | PARITY_MASK, port_base + TMC_Cntl);
- }
- }
- current_SC->SCp.phase = in_other;
- outb(0x90 | FIFO_COUNT, port_base + Interrupt_Cntl);
- outb(0x80, port_base + SCSI_Cntl);
-#if DEBUG_RACE
- in_interrupt_flag = 0;
-#endif
- return IRQ_HANDLED;
- }
-
- /* current_SC->SCp.phase == in_other: this is the body of the routine */
-
- status = inb(port_base + SCSI_Status);
-
- if (status & 0x10) { /* REQ */
-
- switch (status & 0x0e) {
-
- case 0x08: /* COMMAND OUT */
- outb(current_SC->cmnd[current_SC->SCp.sent_command++],
- port_base + Write_SCSI_Data);
-#if EVERY_ACCESS
- printk( "CMD = %x,",
- current_SC->cmnd[ current_SC->SCp.sent_command - 1] );
-#endif
- break;
- case 0x00: /* DATA OUT -- tmc18c50/tmc18c30 only */
- if (chip != tmc1800 && !current_SC->SCp.have_data_in) {
- current_SC->SCp.have_data_in = -1;
- outb(0xd0 | PARITY_MASK, port_base + TMC_Cntl);
- }
- break;
- case 0x04: /* DATA IN -- tmc18c50/tmc18c30 only */
- if (chip != tmc1800 && !current_SC->SCp.have_data_in) {
- current_SC->SCp.have_data_in = 1;
- outb(0x90 | PARITY_MASK, port_base + TMC_Cntl);
- }
- break;
- case 0x0c: /* STATUS IN */
- current_SC->SCp.Status = inb(port_base + Read_SCSI_Data);
-#if EVERY_ACCESS
- printk( "Status = %x, ", current_SC->SCp.Status );
-#endif
-#if ERRORS_ONLY
- if (current_SC->SCp.Status
- && current_SC->SCp.Status != 2
- && current_SC->SCp.Status != 8) {
- printk( "scsi: <fdomain> target = %d, command = %x, status = %x\n",
- current_SC->device->id,
- current_SC->cmnd[0],
- current_SC->SCp.Status );
- }
-#endif
- break;
- case 0x0a: /* MESSAGE OUT */
- outb(MESSAGE_REJECT, port_base + Write_SCSI_Data); /* Reject */
- break;
- case 0x0e: /* MESSAGE IN */
- current_SC->SCp.Message = inb(port_base + Read_SCSI_Data);
-#if EVERY_ACCESS
- printk( "Message = %x, ", current_SC->SCp.Message );
-#endif
- if (!current_SC->SCp.Message) ++done;
-#if DEBUG_MESSAGES || EVERY_ACCESS
- if (current_SC->SCp.Message) {
- printk( "scsi: <fdomain> message = %x\n",
- current_SC->SCp.Message );
- }
-#endif
- break;
- }
- }
-
- if (chip == tmc1800 && !current_SC->SCp.have_data_in
- && (current_SC->SCp.sent_command >= current_SC->cmd_len)) {
-
- if(current_SC->sc_data_direction == DMA_TO_DEVICE)
- {
- current_SC->SCp.have_data_in = -1;
- outb(0xd0 | PARITY_MASK, port_base + TMC_Cntl);
- }
- else
- {
- current_SC->SCp.have_data_in = 1;
- outb(0x90 | PARITY_MASK, port_base + TMC_Cntl);
- }
- }
-
- if (current_SC->SCp.have_data_in == -1) { /* DATA OUT */
- while ((data_count = FIFO_Size - inw(port_base + FIFO_Data_Count)) > 512) {
-#if EVERY_ACCESS
- printk( "DC=%d, ", data_count ) ;
-#endif
- if (data_count > current_SC->SCp.this_residual)
- data_count = current_SC->SCp.this_residual;
- if (data_count > 0) {
-#if EVERY_ACCESS
- printk( "%d OUT, ", data_count );
-#endif
- if (data_count == 1) {
- outb(*current_SC->SCp.ptr++, port_base + Write_FIFO);
- --current_SC->SCp.this_residual;
- } else {
- data_count >>= 1;
- outsw(port_base + Write_FIFO, current_SC->SCp.ptr, data_count);
- current_SC->SCp.ptr += 2 * data_count;
- current_SC->SCp.this_residual -= 2 * data_count;
- }
- }
- if (!current_SC->SCp.this_residual) {
- if (current_SC->SCp.buffers_residual) {
- --current_SC->SCp.buffers_residual;
- ++current_SC->SCp.buffer;
- current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
- current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
- } else
- break;
- }
- }
- }
-
- if (current_SC->SCp.have_data_in == 1) { /* DATA IN */
- while ((data_count = inw(port_base + FIFO_Data_Count)) > 0) {
-#if EVERY_ACCESS
- printk( "DC=%d, ", data_count );
-#endif
- if (data_count > current_SC->SCp.this_residual)
- data_count = current_SC->SCp.this_residual;
- if (data_count) {
-#if EVERY_ACCESS
- printk( "%d IN, ", data_count );
-#endif
- if (data_count == 1) {
- *current_SC->SCp.ptr++ = inb(port_base + Read_FIFO);
- --current_SC->SCp.this_residual;
- } else {
- data_count >>= 1; /* Number of words */
- insw(port_base + Read_FIFO, current_SC->SCp.ptr, data_count);
- current_SC->SCp.ptr += 2 * data_count;
- current_SC->SCp.this_residual -= 2 * data_count;
- }
- }
- if (!current_SC->SCp.this_residual
- && current_SC->SCp.buffers_residual) {
- --current_SC->SCp.buffers_residual;
- ++current_SC->SCp.buffer;
- current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
- current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
- }
- }
- }
-
- if (done) {
-#if EVERY_ACCESS
- printk( " ** IN DONE %d ** ", current_SC->SCp.have_data_in );
-#endif
-
-#if ERRORS_ONLY
- if (current_SC->cmnd[0] == REQUEST_SENSE && !current_SC->SCp.Status) {
- char *buf = scsi_sglist(current_SC);
- if ((unsigned char)(*(buf + 2)) & 0x0f) {
- unsigned char key;
- unsigned char code;
- unsigned char qualifier;
-
- key = (unsigned char)(*(buf + 2)) & 0x0f;
- code = (unsigned char)(*(buf + 12));
- qualifier = (unsigned char)(*(buf + 13));
-
- if (key != UNIT_ATTENTION
- && !(key == NOT_READY
- && code == 0x04
- && (!qualifier || qualifier == 0x02 || qualifier == 0x01))
- && !(key == ILLEGAL_REQUEST && (code == 0x25
- || code == 0x24
- || !code)))
-
- printk( "scsi: <fdomain> REQUEST SENSE"
- " Key = %x, Code = %x, Qualifier = %x\n",
- key, code, qualifier );
- }
- }
-#endif
-#if EVERY_ACCESS
- printk( "BEFORE MY_DONE. . ." );
-#endif
- spin_lock_irqsave(current_SC->device->host->host_lock, flags);
- my_done( (current_SC->SCp.Status & 0xff)
- | ((current_SC->SCp.Message & 0xff) << 8) | (DID_OK << 16) );
- spin_unlock_irqrestore(current_SC->device->host->host_lock, flags);
-#if EVERY_ACCESS
- printk( "RETURNING.\n" );
-#endif
-
- } else {
- if (current_SC->SCp.phase & disconnect) {
- outb(0xd0 | FIFO_COUNT, port_base + Interrupt_Cntl);
- outb(0x00, port_base + SCSI_Cntl);
- } else {
- outb(0x90 | FIFO_COUNT, port_base + Interrupt_Cntl);
- }
- }
-#if DEBUG_RACE
- in_interrupt_flag = 0;
-#endif
- return IRQ_HANDLED;
-}
-
-static int fdomain_16x0_queue_lck(struct scsi_cmnd *SCpnt,
- void (*done)(struct scsi_cmnd *))
-{
- if (in_command) {
- panic( "scsi: <fdomain> fdomain_16x0_queue() NOT REENTRANT!\n" );
- }
-#if EVERY_ACCESS
- printk( "queue: target = %d cmnd = 0x%02x pieces = %d size = %u\n",
- SCpnt->target,
- *(unsigned char *)SCpnt->cmnd,
- scsi_sg_count(SCpnt),
- scsi_bufflen(SCpnt));
-#endif
-
- fdomain_make_bus_idle();
-
- current_SC = SCpnt; /* Save this for the done function */
- current_SC->scsi_done = done;
-
- /* Initialize static data */
-
- if (scsi_sg_count(current_SC)) {
- current_SC->SCp.buffer = scsi_sglist(current_SC);
- current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
- current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
- current_SC->SCp.buffers_residual = scsi_sg_count(current_SC) - 1;
- } else {
- current_SC->SCp.ptr = NULL;
- current_SC->SCp.this_residual = 0;
- current_SC->SCp.buffer = NULL;
- current_SC->SCp.buffers_residual = 0;
- }
-
- current_SC->SCp.Status = 0;
- current_SC->SCp.Message = 0;
- current_SC->SCp.have_data_in = 0;
- current_SC->SCp.sent_command = 0;
- current_SC->SCp.phase = in_arbitration;
-
- /* Start arbitration */
- outb(0x00, port_base + Interrupt_Cntl);
- outb(0x00, port_base + SCSI_Cntl); /* Disable data drivers */
- outb(adapter_mask, port_base + SCSI_Data_NoACK); /* Set our id bit */
- ++in_command;
- outb(0x20, port_base + Interrupt_Cntl);
- outb(0x14 | PARITY_MASK, port_base + TMC_Cntl); /* Start arbitration */
-
- return 0;
-}
-
-static DEF_SCSI_QCMD(fdomain_16x0_queue)
-
-#if DEBUG_ABORT
-static void print_info(struct scsi_cmnd *SCpnt)
-{
- unsigned int imr;
- unsigned int irr;
- unsigned int isr;
-
- if (!SCpnt || !SCpnt->device || !SCpnt->device->host) {
- printk(KERN_WARNING "scsi: <fdomain> Cannot provide detailed information\n");
- return;
- }
-
- printk(KERN_INFO "%s\n", fdomain_16x0_info( SCpnt->device->host ) );
- print_banner(SCpnt->device->host);
- switch (SCpnt->SCp.phase) {
- case in_arbitration: printk("arbitration"); break;
- case in_selection: printk("selection"); break;
- case in_other: printk("other"); break;
- default: printk("unknown"); break;
- }
-
- printk( " (%d), target = %d cmnd = 0x%02x pieces = %d size = %u\n",
- SCpnt->SCp.phase,
- SCpnt->device->id,
- *(unsigned char *)SCpnt->cmnd,
- scsi_sg_count(SCpnt),
- scsi_bufflen(SCpnt));
- printk( "sent_command = %d, have_data_in = %d, timeout = %d\n",
- SCpnt->SCp.sent_command,
- SCpnt->SCp.have_data_in,
- SCpnt->timeout );
-#if DEBUG_RACE
- printk( "in_interrupt_flag = %d\n", in_interrupt_flag );
-#endif
-
- imr = (inb( 0x0a1 ) << 8) + inb( 0x21 );
- outb( 0x0a, 0xa0 );
- irr = inb( 0xa0 ) << 8;
- outb( 0x0a, 0x20 );
- irr += inb( 0x20 );
- outb( 0x0b, 0xa0 );
- isr = inb( 0xa0 ) << 8;
- outb( 0x0b, 0x20 );
- isr += inb( 0x20 );
-
- /* Print out interesting information */
- printk( "IMR = 0x%04x", imr );
- if (imr & (1 << interrupt_level))
- printk( " (masked)" );
- printk( ", IRR = 0x%04x, ISR = 0x%04x\n", irr, isr );
-
- printk( "SCSI Status = 0x%02x\n", inb(port_base + SCSI_Status));
- printk( "TMC Status = 0x%02x", inb(port_base + TMC_Status));
- if (inb((port_base + TMC_Status) & 1))
- printk( " (interrupt)" );
- printk( "\n" );
- printk("Interrupt Status = 0x%02x", inb(port_base + Interrupt_Status));
- if (inb(port_base + Interrupt_Status) & 0x08)
- printk( " (enabled)" );
- printk( "\n" );
- if (chip == tmc18c50 || chip == tmc18c30) {
- printk("FIFO Status = 0x%02x\n", inb(port_base + FIFO_Status));
- printk( "Int. Condition = 0x%02x\n",
- inb( port_base + Interrupt_Cond ) );
- }
- printk( "Configuration 1 = 0x%02x\n", inb( port_base + Configuration1 ) );
- if (chip == tmc18c50 || chip == tmc18c30)
- printk( "Configuration 2 = 0x%02x\n",
- inb( port_base + Configuration2 ) );
-}
-#endif
-
-static int fdomain_16x0_abort(struct scsi_cmnd *SCpnt)
-{
-#if EVERY_ACCESS || ERRORS_ONLY || DEBUG_ABORT
- printk( "scsi: <fdomain> abort " );
-#endif
-
- if (!in_command) {
-#if EVERY_ACCESS || ERRORS_ONLY
- printk( " (not in command)\n" );
-#endif
- return FAILED;
- } else printk( "\n" );
-
-#if DEBUG_ABORT
- print_info( SCpnt );
-#endif
-
- fdomain_make_bus_idle();
- current_SC->SCp.phase |= aborted;
- current_SC->result = DID_ABORT << 16;
-
- /* Aborts are not done well. . . */
- my_done(DID_ABORT << 16);
- return SUCCESS;
-}
-
-int fdomain_16x0_host_reset(struct scsi_cmnd *SCpnt)
-{
- unsigned long flags;
-
- local_irq_save(flags);
-
- outb(1, port_base + SCSI_Cntl);
- do_pause( 2 );
- outb(0, port_base + SCSI_Cntl);
- do_pause( 115 );
- outb(0, port_base + SCSI_Mode_Cntl);
- outb(PARITY_MASK, port_base + TMC_Cntl);
-
- local_irq_restore(flags);
- return SUCCESS;
-}
-
-static int fdomain_16x0_biosparam(struct scsi_device *sdev,
- struct block_device *bdev,
- sector_t capacity, int *info_array)
-{
- int drive;
- int size = capacity;
- unsigned long offset;
- struct drive_info {
- unsigned short cylinders;
- unsigned char heads;
- unsigned char sectors;
- } i;
-
- /* NOTES:
- The RAM area starts at 0x1f00 from the bios_base address.
-
- For BIOS Version 2.0:
-
- The drive parameter table seems to start at 0x1f30.
- The first byte's purpose is not known.
- Next is the cylinder, head, and sector information.
- The last 4 bytes appear to be the drive's size in sectors.
- The other bytes in the drive parameter table are unknown.
- If anyone figures them out, please send me mail, and I will
- update these notes.
-
- Tape drives do not get placed in this table.
-
- There is another table at 0x1fea:
- If the byte is 0x01, then the SCSI ID is not in use.
- If the byte is 0x18 or 0x48, then the SCSI ID is in use,
- although tapes don't seem to be in this table. I haven't
- seen any other numbers (in a limited sample).
-
- 0x1f2d is a drive count (i.e., not including tapes)
-
- The table at 0x1fcc are I/O ports addresses for the various
- operations. I calculate these by hand in this driver code.
-
-
-
- For the ISA-200S version of BIOS Version 2.0:
-
- The drive parameter table starts at 0x1f33.
-
- WARNING: Assume that the table entry is 25 bytes long. Someone needs
- to check this for the Quantum ISA-200S card.
-
-
-
- For BIOS Version 3.2:
-
- The drive parameter table starts at 0x1f70. Each entry is
- 0x0a bytes long. Heads are one less than we need to report.
- */
-
- if (MAJOR(bdev->bd_dev) != SCSI_DISK0_MAJOR) {
- printk("scsi: <fdomain> fdomain_16x0_biosparam: too many disks");
- return 0;
- }
- drive = MINOR(bdev->bd_dev) >> 4;
-
- if (bios_major == 2) {
- switch (Quantum) {
- case 2: /* ISA_200S */
- /* The value of 25 has never been verified.
- It should probably be 15. */
- offset = 0x1f33 + drive * 25;
- break;
- case 3: /* ISA_250MG */
- offset = 0x1f36 + drive * 15;
- break;
- case 4: /* ISA_200S (another one) */
- offset = 0x1f34 + drive * 15;
- break;
- default:
- offset = 0x1f31 + drive * 25;
- break;
- }
- memcpy_fromio( &i, bios_mem + offset, sizeof( struct drive_info ) );
- info_array[0] = i.heads;
- info_array[1] = i.sectors;
- info_array[2] = i.cylinders;
- } else if (bios_major == 3
- && bios_minor >= 0
- && bios_minor < 4) { /* 3.0 and 3.2 BIOS */
- memcpy_fromio( &i, bios_mem + 0x1f71 + drive * 10,
- sizeof( struct drive_info ) );
- info_array[0] = i.heads + 1;
- info_array[1] = i.sectors;
- info_array[2] = i.cylinders;
- } else { /* 3.4 BIOS (and up?) */
- /* This algorithm was provided by Future Domain (much thanks!). */
- unsigned char *p = scsi_bios_ptable(bdev);
-
- if (p && p[65] == 0xaa && p[64] == 0x55 /* Partition table valid */
- && p[4]) { /* Partition type */
-
- /* The partition table layout is as follows:
-
- Start: 0x1b3h
- Offset: 0 = partition status
- 1 = starting head
- 2 = starting sector and cylinder (word, encoded)
- 4 = partition type
- 5 = ending head
- 6 = ending sector and cylinder (word, encoded)
- 8 = starting absolute sector (double word)
- c = number of sectors (double word)
- Signature: 0x1fe = 0x55aa
-
- So, this algorithm assumes:
- 1) the first partition table is in use,
- 2) the data in the first entry is correct, and
- 3) partitions never divide cylinders
-
- Note that (1) may be FALSE for NetBSD (and other BSD flavors),
- as well as for Linux. Note also, that Linux doesn't pay any
- attention to the fields that are used by this algorithm -- it
- only uses the absolute sector data. Recent versions of Linux's
- fdisk(1) will fill this data in correctly, and forthcoming
- versions will check for consistency.
-
- Checking for a non-zero partition type is not part of the
- Future Domain algorithm, but it seemed to be a reasonable thing
- to do, especially in the Linux and BSD worlds. */
-
- info_array[0] = p[5] + 1; /* heads */
- info_array[1] = p[6] & 0x3f; /* sectors */
- } else {
-
- /* Note that this new method guarantees that there will always be
- less than 1024 cylinders on a platter. This is good for drives
- up to approximately 7.85GB (where 1GB = 1024 * 1024 kB). */
-
- if ((unsigned int)size >= 0x7e0000U) {
- info_array[0] = 0xff; /* heads = 255 */
- info_array[1] = 0x3f; /* sectors = 63 */
- } else if ((unsigned int)size >= 0x200000U) {
- info_array[0] = 0x80; /* heads = 128 */
- info_array[1] = 0x3f; /* sectors = 63 */
- } else {
- info_array[0] = 0x40; /* heads = 64 */
- info_array[1] = 0x20; /* sectors = 32 */
- }
- }
- /* For both methods, compute the cylinders */
- info_array[2] = (unsigned int)size / (info_array[0] * info_array[1] );
- kfree(p);
- }
-
- return 0;
-}
-
-static int fdomain_16x0_release(struct Scsi_Host *shpnt)
-{
- if (shpnt->irq)
- free_irq(shpnt->irq, shpnt);
- if (shpnt->io_port && shpnt->n_io_port)
- release_region(shpnt->io_port, shpnt->n_io_port);
- if (PCI_bus)
- pci_dev_put(PCI_dev);
- return 0;
-}
-
-struct scsi_host_template fdomain_driver_template = {
- .module = THIS_MODULE,
- .name = "fdomain",
- .proc_name = "fdomain",
- .detect = fdomain_16x0_detect,
- .info = fdomain_16x0_info,
- .queuecommand = fdomain_16x0_queue,
- .eh_abort_handler = fdomain_16x0_abort,
- .eh_host_reset_handler = fdomain_16x0_host_reset,
- .bios_param = fdomain_16x0_biosparam,
- .release = fdomain_16x0_release,
- .can_queue = 1,
- .this_id = 6,
- .sg_tablesize = 64,
- .use_clustering = DISABLE_CLUSTERING,
-};
-
-#ifndef PCMCIA
-#if defined(CONFIG_PCI) && defined(MODULE)
-
-static struct pci_device_id fdomain_pci_tbl[] = {
- { PCI_VENDOR_ID_FD, PCI_DEVICE_ID_FD_36C70,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
- { }
-};
-MODULE_DEVICE_TABLE(pci, fdomain_pci_tbl);
-#endif
-#define driver_template fdomain_driver_template
-#include "scsi_module.c"
-
-#endif
projects / openwrt / staging / blogic.git / commitdiff