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authorThomas Schwinge <tschwinge@gnu.org>2006-10-08 13:52:36 +0000
committerThomas Schwinge <tschwinge@gnu.org>2009-06-18 00:26:43 +0200
commit5bde205d1b42d031e6bb1422337ab9a37752b2e7 (patch)
treea991facc98c4cb52a275faaaacaeaccf74265972 /linux/dev
parent7cad6f7211281c8be1e92f85b6181c3d9d2665e7 (diff)
2006-10-08 Thomas Schwinge <tschwinge@gnu.org>
* linux/dev/drivers/scsi/aha152x.c: Move file... * linux/src/drivers/scsi/aha152x.c: ... here.
Diffstat (limited to 'linux/dev')
-rw-r--r--linux/dev/drivers/scsi/aha152x.c3281
1 files changed, 0 insertions, 3281 deletions
diff --git a/linux/dev/drivers/scsi/aha152x.c b/linux/dev/drivers/scsi/aha152x.c
deleted file mode 100644
index 59ccea6..0000000
--- a/linux/dev/drivers/scsi/aha152x.c
+++ /dev/null
@@ -1,3281 +0,0 @@
-/* aha152x.c -- Adaptec AHA-152x driver
- * Author: Jürgen E. Fischer, fischer@et-inf.fho-emden.de
- * Copyright 1993, 1994, 1995, 1996 Jürgen E. Fischer
- *
- *
- * This driver is based on
- * fdomain.c -- Future Domain TMC-16x0 driver
- * which is
- * Copyright 1992, 1993 Rickard E. Faith (faith@cs.unc.edu)
- *
- *
- * 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.
- *
- *
- * $Id: aha152x.c,v 1.1 1999/04/26 05:44:22 tb Exp $
- *
- * $Log: aha152x.c,v $
- * Revision 1.18 1996/09/07 20:10:40 fischer
- * - fixed can_queue handling (multiple outstanding commands working again)
- *
- * Revision 1.17 1996/08/17 16:05:14 fischer
- * - biosparam improved
- * - interrupt verification
- * - updated documentation
- * - cleanups
- *
- * Revision 1.16 1996/06/09 00:04:56 root
- * - added configuration symbols for insmod (aha152x/aha152x1)
- *
- * Revision 1.15 1996/04/30 14:52:06 fischer
- * - proc info fixed
- * - support for extended translation for >1GB disks
- *
- * Revision 1.14 1996/01/17 15:11:20 fischer
- * - fixed lockup in MESSAGE IN phase after reconnection
- *
- * Revision 1.13 1996/01/09 02:15:53 fischer
- * - some cleanups
- * - moved request_irq behind controller initialization
- * (to avoid spurious interrupts)
- *
- * Revision 1.12 1995/12/16 12:26:07 fischer
- * - barrier()s added
- * - configurable RESET delay added
- *
- * Revision 1.11 1995/12/06 21:18:35 fischer
- * - some minor updates
- *
- * Revision 1.10 1995/07/22 19:18:45 fischer
- * - support for 2 controllers
- * - started synchronous data transfers (not working yet)
- *
- * Revision 1.9 1995/03/18 09:20:24 root
- * - patches for PCMCIA and modules
- *
- * Revision 1.8 1995/01/21 22:07:19 root
- * - snarf_region => request_region
- * - aha152x_intr interface change
- *
- * Revision 1.7 1995/01/02 23:19:36 root
- * - updated COMMAND_SIZE to cmd_len
- * - changed sti() to restore_flags()
- * - fixed some #ifdef which generated warnings
- *
- * Revision 1.6 1994/11/24 20:35:27 root
- * - problem with odd number of bytes in fifo fixed
- *
- * Revision 1.5 1994/10/30 14:39:56 root
- * - abort code fixed
- * - debugging improved
- *
- * Revision 1.4 1994/09/12 11:33:01 root
- * - irqaction to request_irq
- * - abortion updated
- *
- * Revision 1.3 1994/08/04 13:53:05 root
- * - updates for mid-level-driver changes
- * - accept unexpected BUSFREE phase as error condition
- * - parity check now configurable
- *
- * Revision 1.2 1994/07/03 12:56:36 root
- * - cleaned up debugging code
- * - more tweaking on reset delays
- * - updated abort/reset code (pretty untested...)
- *
- * Revision 1.1 1994/05/28 21:18:49 root
- * - update for mid-level interface change (abort-reset)
- * - delays after resets adjusted for some slow devices
- *
- * Revision 1.0 1994/03/25 12:52:00 root
- * - Fixed "more data than expected" problem
- * - added new BIOS signatures
- *
- * Revision 0.102 1994/01/31 20:44:12 root
- * - minor changes in insw/outsw handling
- *
- * Revision 0.101 1993/12/13 01:16:27 root
- * - fixed STATUS phase (non-GOOD stati were dropped sometimes;
- * fixes problems with CD-ROM sector size detection & media change)
- *
- * Revision 0.100 1993/12/10 16:58:47 root
- * - fix for unsuccessful selections in case of non-continuous id assignments
- * on the scsi bus.
- *
- * Revision 0.99 1993/10/24 16:19:59 root
- * - fixed DATA IN (rare read errors gone)
- *
- * Revision 0.98 1993/10/17 12:54:44 root
- * - fixed some recent fixes (shame on me)
- * - moved initialization of scratch area to aha152x_queue
- *
- * Revision 0.97 1993/10/09 18:53:53 root
- * - DATA IN fixed. Rarely left data in the fifo.
- *
- * Revision 0.96 1993/10/03 00:53:59 root
- * - minor changes on DATA IN
- *
- * Revision 0.95 1993/09/24 10:36:01 root
- * - change handling of MSGI after reselection
- * - fixed sti/cli
- * - minor changes
- *
- * Revision 0.94 1993/09/18 14:08:22 root
- * - fixed bug in multiple outstanding command code
- * - changed detection
- * - support for kernel command line configuration
- * - reset corrected
- * - changed message handling
- *
- * Revision 0.93 1993/09/15 20:41:19 root
- * - fixed bugs with multiple outstanding commands
- *
- * Revision 0.92 1993/09/13 02:46:33 root
- * - multiple outstanding commands work (no problems with IBM drive)
- *
- * Revision 0.91 1993/09/12 20:51:46 root
- * added multiple outstanding commands
- * (some problem with this $%&? IBM device remain)
- *
- * Revision 0.9 1993/09/12 11:11:22 root
- * - corrected auto-configuration
- * - changed the auto-configuration (added some '#define's)
- * - added support for dis-/reconnection
- *
- * Revision 0.8 1993/09/06 23:09:39 root
- * - added support for the drive activity light
- * - minor changes
- *
- * Revision 0.7 1993/09/05 14:30:15 root
- * - improved phase detection
- * - now using the new snarf_region code of 0.99pl13
- *
- * Revision 0.6 1993/09/02 11:01:38 root
- * first public release; added some signatures and biosparam()
- *
- * Revision 0.5 1993/08/30 10:23:30 root
- * fixed timing problems with my IBM drive
- *
- * Revision 0.4 1993/08/29 14:06:52 root
- * fixed some problems with timeouts due incomplete commands
- *
- * Revision 0.3 1993/08/28 15:55:03 root
- * writing data works too. mounted and worked on a dos partition
- *
- * Revision 0.2 1993/08/27 22:42:07 root
- * reading data works. Mounted a msdos partition.
- *
- * Revision 0.1 1993/08/25 13:38:30 root
- * first "damn thing doesn't work" version
- *
- * Revision 0.0 1993/08/14 19:54:25 root
- * empty function bodies; detect() works.
- *
- *
- **************************************************************************
-
-
-
- DESCRIPTION:
-
- This is the Linux low-level SCSI driver for Adaptec AHA-1520/1522 SCSI
- host adapters.
-
-
- CONFIGURATION ARGUMENTS:
-
- IOPORT base io address (0x340/0x140)
- IRQ interrupt level (9-12; default 11)
- SCSI_ID scsi id of controller (0-7; default 7)
- RECONNECT allow targets to disconnect from the bus (0/1; default 1 [on])
- PARITY enable parity checking (0/1; default 1 [on])
- SYNCHRONOUS enable synchronous transfers (0/1; default 0 [off])
- (NOT WORKING YET)
- DELAY: bus reset delay (default 100)
- EXT_TRANS: enable extended translation (0/1: default 0 [off])
- (see NOTES below)
-
- COMPILE TIME CONFIGURATION (put into AHA152X in drivers/scsi/Makefile):
-
- -DAUTOCONF
- use configuration the controller reports (AHA-152x only)
-
- -DSKIP_BIOSTEST
- Don't test for BIOS signature (AHA-1510 or disabled BIOS)
-
- -DSETUP0="{ IOPORT, IRQ, SCSI_ID, RECONNECT, PARITY, SYNCHRONOUS, DELAY, EXT_TRANS }"
- override for the first controller
-
- -DSETUP1="{ IOPORT, IRQ, SCSI_ID, RECONNECT, PARITY, SYNCHRONOUS, DELAY, EXT_TRANS }"
- override for the second controller
-
-
- LILO COMMAND LINE OPTIONS:
-
- aha152x=<IOPORT>[,<IRQ>[,<SCSI-ID>[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY> [,<EXT_TRANS]]]]]]]
-
- The normal configuration can be overridden by specifying a command line.
- When you do this, the BIOS test is skipped. Entered values have to be
- valid (known). Don't use values that aren't supported under normal
- operation. If you think that you need other values: contact me.
- For two controllers use the aha152x statement twice.
-
-
- SYMBOLS FOR MODULE CONFIGURATION:
-
- aha152x=IOPORT,IRQ,SCSI_ID,RECONNECT,PARITY,SYNCHRONOUS,DELAY,EXT_TRANS
- configuration override of first controller
-
-
- aha152x1=IOPORT,IRQ,SCSI_ID,RECONNECT,PARITY,SYNCHRONOUS,DELAY,EXT_TRANS
- configuration override of second controller
-
-
- NOTES ON EXT_TRANS:
-
- SCSI uses block numbers to address blocks/sectors on a device.
- The BIOS uses a cylinder/head/sector addressing scheme (C/H/S)
- scheme instead. DOS expects a BIOS or driver that understands this
- C/H/S addressing.
-
- The number of cylinders/heads/sectors is called geometry and is required
- as base for requests in C/H/S adressing. SCSI only knows about the
- total capacity of disks in blocks (sectors).
-
- Therefore the SCSI BIOS/DOS driver has to calculate a logical/virtual
- geometry just to be able to support that addressing scheme. The geometry
- returned by the SCSI BIOS is a pure calculation and has nothing to
- do with the real/physical geometry of the disk (which is usually
- irrelevant anyway).
-
- Basically this has no impact at all on Linux, because it also uses block
- instead of C/H/S addressing. Unfortunately C/H/S addressing is also used
- in the partition table and therefore every operating system has to know
- the right geometry to be able to interpret it.
-
- Moreover there are certain limitations to the C/H/S addressing scheme,
- namely the address space is limited to upto 255 heads, upto 63 sectors
- and a maximum of 1023 cylinders.
-
- The AHA-1522 BIOS calculates the geometry by fixing the number of heads
- to 64, the number of sectors to 32 and by calculating the number of
- cylinders by dividing the capacity reported by the disk by 64*32 (1 MB).
- This is considered to be the default translation.
-
- With respect to the limit of 1023 cylinders using C/H/S you can only
- address the first GB of your disk in the partition table. Therefore
- BIOSes of some newer controllers based on the AIC-6260/6360 support
- extended translation. This means that the BIOS uses 255 for heads,
- 63 for sectors and then divides the capacity of the disk by 255*63
- (about 8 MB), as soon it sees a disk greater than 1 GB. That results
- in a maximum of about 8 GB adressable diskspace in the partition table
- (but there are already bigger disks out there today).
-
- To make it even more complicated the translation mode might/might
- not be configurable in certain BIOS setups.
-
- This driver does some more or less failsafe guessing to get the
- geometry right in most cases:
-
- - for disks<1GB: use default translation (C/32/64)
- - for disks>1GB:
- - take current geometry from the partition table
- (using scsicam_bios_param and accept only `valid' geometries,
- ie. either (C/32/64) or (C/63/255)). This can be extended
- translation even if it's not enabled in the driver.
- - if that fails, take extended translation if enabled by override,
- kernel or module parameter, otherwise take default translation and
- ask the user for verification. This might on not yet partitioned
- disks or
-
-
- REFERENCES USED:
-
- "AIC-6260 SCSI Chip Specification", Adaptec Corporation.
-
- "SCSI COMPUTER SYSTEM INTERFACE - 2 (SCSI-2)", X3T9.2/86-109 rev. 10h
-
- "Writing a SCSI device driver for Linux", Rik Faith (faith@cs.unc.edu)
-
- "Kernel Hacker's Guide", Michael K. Johnson (johnsonm@sunsite.unc.edu)
-
- "Adaptec 1520/1522 User's Guide", Adaptec Corporation.
-
- Michael K. Johnson (johnsonm@sunsite.unc.edu)
-
- Drew Eckhardt (drew@cs.colorado.edu)
-
- Eric Youngdale (ericy@cais.com)
-
- special thanks to Eric Youngdale for the free(!) supplying the
- documentation on the chip.
-
- **************************************************************************/
-
-#ifdef MACH
-#define AUTOCONF 1
-#endif
-
-#ifdef PCMCIA
-#define MODULE
-#endif
-
-#include <linux/module.h>
-
-#ifdef PCMCIA
-#undef MODULE
-#endif
-
-#include <linux/sched.h>
-#include <asm/io.h>
-#include <linux/blk.h>
-#include "scsi.h"
-#include "sd.h"
-#include "hosts.h"
-#include "constants.h"
-#include <asm/system.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/wait.h>
-#include <linux/ioport.h>
-#include <linux/proc_fs.h>
-
-#include "aha152x.h"
-#include <linux/stat.h>
-
-#include <scsi/scsicam.h>
-
-struct proc_dir_entry proc_scsi_aha152x = {
- PROC_SCSI_AHA152X, 7, "aha152x",
- S_IFDIR | S_IRUGO | S_IXUGO, 2
-};
-
-/* DEFINES */
-
-/* For PCMCIA cards, always use AUTOCONF */
-#if defined(PCMCIA) || defined(MODULE)
-#if !defined(AUTOCONF)
-#define AUTOCONF
-#endif
-#endif
-
-#if !defined(AUTOCONF) && !defined(SETUP0)
-#error define AUTOCONF or SETUP0
-#endif
-
-#if defined(DEBUG_AHA152X)
-
-#undef SKIP_PORTS /* don't display ports */
-
-#undef DEBUG_QUEUE /* debug queue() */
-#undef DEBUG_RESET /* debug reset() */
-#undef DEBUG_INTR /* debug intr() */
-#undef DEBUG_SELECTION /* debug selection part in intr() */
-#undef DEBUG_MSGO /* debug message out phase in intr() */
-#undef DEBUG_MSGI /* debug message in phase in intr() */
-#undef DEBUG_STATUS /* debug status phase in intr() */
-#undef DEBUG_CMD /* debug command phase in intr() */
-#undef DEBUG_DATAI /* debug data in phase in intr() */
-#undef DEBUG_DATAO /* debug data out phase in intr() */
-#undef DEBUG_ABORT /* debug abort() */
-#undef DEBUG_DONE /* debug done() */
-#undef DEBUG_BIOSPARAM /* debug biosparam() */
-
-#undef DEBUG_RACE /* debug race conditions */
-#undef DEBUG_PHASES /* debug phases (useful to trace) */
-#undef DEBUG_QUEUES /* debug reselection */
-
-/* recently used for debugging */
-#if 0
-#endif
-
-#define DEBUG_SELECTION
-#define DEBUG_PHASES
-#define DEBUG_RESET
-#define DEBUG_ABORT
-
-#define DEBUG_DEFAULT (debug_reset|debug_abort)
-
-#endif
-
-/* END OF DEFINES */
-
-extern unsigned long loops_per_sec;
-
-#define DELAY_DEFAULT 100
-
-/* some additional "phases" for getphase() */
-#define P_BUSFREE 1
-#define P_PARITY 2
-
-/* possible irq range */
-#define IRQ_MIN 9
-#define IRQ_MAX 12
-#define IRQS IRQ_MAX-IRQ_MIN+1
-
-enum {
- not_issued = 0x0001,
- in_selection = 0x0002,
- disconnected = 0x0004,
- aborted = 0x0008,
- sent_ident = 0x0010,
- in_other = 0x0020,
- in_sync = 0x0040,
- sync_ok = 0x0080,
-};
-
-#if defined(MODULE)
-#if defined(DEBUG_AHA152X)
-int aha152x[] = { 0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0, DEBUG_DEFAULT };
-int aha152x1[] = { 0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0, DEBUG_DEFAULT };
-#else
-int aha152x[] = { 0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0 };
-int aha152x1[] = { 0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0 };
-#endif
-#endif
-
-/* set by aha152x_setup according to the command line */
-static int setup_count=0;
-static struct aha152x_setup {
- int io_port;
- int irq;
- int scsiid;
- int reconnect;
- int parity;
- int synchronous;
- int delay;
- int ext_trans;
-#ifdef DEBUG_AHA152X
- int debug;
-#endif
- char *conf;
-} setup[2];
-
-static struct Scsi_Host *aha152x_host[IRQS];
-
-#define HOSTDATA(shpnt) ((struct aha152x_hostdata *) &shpnt->hostdata)
-#define CURRENT_SC (HOSTDATA(shpnt)->current_SC)
-#define ISSUE_SC (HOSTDATA(shpnt)->issue_SC)
-#define DISCONNECTED_SC (HOSTDATA(shpnt)->disconnected_SC)
-#define DELAY (HOSTDATA(shpnt)->delay)
-#define EXT_TRANS (HOSTDATA(shpnt)->ext_trans)
-#define SYNCRATE (HOSTDATA(shpnt)->syncrate[CURRENT_SC->target])
-#define MSG(i) (HOSTDATA(shpnt)->message[i])
-#define MSGLEN (HOSTDATA(shpnt)->message_len)
-#define ADDMSG(x) (MSG(MSGLEN++)=x)
-
-struct aha152x_hostdata {
- Scsi_Cmnd *issue_SC;
- Scsi_Cmnd *current_SC;
- Scsi_Cmnd *disconnected_SC;
- int aborting;
- int abortion_complete;
- int abort_result;
- int commands;
-
- int reconnect;
- int parity;
- int synchronous;
- int delay;
- int ext_trans;
-
- int swint;
-
- unsigned char syncrate[8];
-
- unsigned char message[256];
- int message_len;
-
-#ifdef DEBUG_AHA152X
- int debug;
-#endif
-};
-
-void aha152x_intr(int irq, void *dev_id, struct pt_regs *);
-void aha152x_done(struct Scsi_Host *shpnt, int error);
-void aha152x_setup(char *str, int *ints);
-int aha152x_checksetup(struct aha152x_setup *setup);
-
-static void aha152x_reset_ports(struct Scsi_Host *shpnt);
-static void aha152x_panic(struct Scsi_Host *shpnt, char *msg);
-
-static void disp_ports(struct Scsi_Host *shpnt);
-static void show_command(Scsi_Cmnd *ptr);
-static void show_queues(struct Scsi_Host *shpnt);
-static void disp_enintr(struct Scsi_Host *shpnt);
-
-#if defined(DEBUG_RACE)
-static void enter_driver(const char *);
-static void leave_driver(const char *);
-#endif
-
-/* possible i/o addresses for the AIC-6260 */
-static unsigned short ports[] =
-{
- 0x340, /* default first */
- 0x140
-};
-#define PORT_COUNT (sizeof(ports) / sizeof(unsigned short))
-
-#if !defined(SKIP_BIOSTEST)
-/* possible locations for the Adaptec BIOS */
-static void *addresses[] =
-{
- (void *) 0xdc000, /* default first */
- (void *) 0xc8000,
- (void *) 0xcc000,
- (void *) 0xd0000,
- (void *) 0xd4000,
- (void *) 0xd8000,
- (void *) 0xe0000,
- (void *) 0xeb800, /* VTech Platinum SMP */
- (void *) 0xf0000,
-};
-#define ADDRESS_COUNT (sizeof(addresses) / sizeof(void *))
-
-/* signatures for various AIC-6[23]60 based controllers.
- The point in detecting signatures is to avoid useless and maybe
- harmful probes on ports. I'm not sure that all listed boards pass
- auto-configuration. For those which fail the BIOS signature is
- obsolete, because user intervention to supply the configuration is
- needed anyway. May be an information whether or not the BIOS supports
- extended translation could be also useful here. */
-static struct signature {
- char *signature;
- int sig_offset;
- int sig_length;
-} signatures[] =
-{
- { "Adaptec AHA-1520 BIOS", 0x102e, 21 }, /* Adaptec 152x */
- { "Adaptec AHA-1520B", 0x0b, 17 }, /* Adaptec 152x rev B */
- { "Adaptec AHA-1520B/1522B", 0x3e20, 23 }, /* Adaptec 1520B/1522B */
- { "Adaptec ASW-B626 BIOS", 0x1029, 21 }, /* on-board controller */
- { "Adaptec BIOS: ASW-B626", 0x0f, 22 }, /* on-board controller */
- { "Adaptec ASW-B626 S2", 0x2e6c, 19 }, /* on-board controller */
- { "Adaptec BIOS:AIC-6360", 0xc, 21 }, /* on-board controller */
- { "ScsiPro SP-360 BIOS", 0x2873, 19 }, /* ScsiPro-Controller */
- { "GA-400 LOCAL BUS SCSI BIOS", 0x102e, 26 }, /* Gigabyte Local-Bus-SCSI */
- { "Adaptec BIOS:AVA-282X", 0xc, 21 }, /* Adaptec 282x */
- { "Adaptec IBM Dock II SCSI", 0x2edd, 24 }, /* IBM Thinkpad Dock II */
- { "Adaptec BIOS:AHA-1532P", 0x1c, 22 }, /* IBM Thinkpad Dock II SCSI */
-};
-#define SIGNATURE_COUNT (sizeof(signatures) / sizeof(struct signature))
-#endif
-
-
-static void do_pause(unsigned amount) /* Pause for amount*10 milliseconds */
-{
- unsigned long the_time = jiffies + amount; /* 0.01 seconds per jiffy */
-
- while (jiffies < the_time)
- barrier();
-}
-
-/*
- * queue services:
- */
-static inline void append_SC(Scsi_Cmnd **SC, Scsi_Cmnd *new_SC)
-{
- Scsi_Cmnd *end;
-
- new_SC->host_scribble = (unsigned char *) NULL;
- if(!*SC)
- *SC=new_SC;
- else {
- for(end=*SC; end->host_scribble; end = (Scsi_Cmnd *) end->host_scribble)
- ;
- end->host_scribble = (unsigned char *) new_SC;
- }
-}
-
-static inline Scsi_Cmnd *remove_first_SC(Scsi_Cmnd **SC)
-{
- Scsi_Cmnd *ptr;
-
- ptr=*SC;
- if(ptr)
- *SC= (Scsi_Cmnd *) (*SC)->host_scribble;
- return ptr;
-}
-
-static inline Scsi_Cmnd *remove_SC(Scsi_Cmnd **SC, int target, int lun)
-{
- Scsi_Cmnd *ptr, *prev;
-
- for(ptr=*SC, prev=NULL;
- ptr && ((ptr->target!=target) || (ptr->lun!=lun));
- prev = ptr, ptr = (Scsi_Cmnd *) ptr->host_scribble)
- ;
-
- if(ptr){
- if(prev)
- prev->host_scribble = ptr->host_scribble;
- else
- *SC= (Scsi_Cmnd *) ptr->host_scribble;
- }
-
- return ptr;
-}
-
-/*
- * read inbound byte and wait for ACK to get low
- */
-static void make_acklow(struct Scsi_Host *shpnt)
-{
- SETPORT(SXFRCTL0, CH1|SPIOEN);
- GETPORT(SCSIDAT);
- SETPORT(SXFRCTL0, CH1);
-
- while(TESTHI(SCSISIG, ACKI))
- barrier();
-}
-
-/*
- * detect current phase more reliable:
- * phase is valid, when the target asserts REQ after we've deasserted ACK.
- *
- * return value is a valid phase or an error code.
- *
- * errorcodes:
- * P_BUSFREE BUS FREE phase detected
- * P_PARITY parity error in DATA phase
- */
-static int getphase(struct Scsi_Host *shpnt)
-{
- int phase, sstat1;
-
- while(1) {
- do {
- while(!((sstat1 = GETPORT(SSTAT1)) & (BUSFREE|SCSIRSTI|REQINIT)))
- barrier();
- if(sstat1 & BUSFREE)
- return P_BUSFREE;
- if(sstat1 & SCSIRSTI) {
- printk("aha152x: RESET IN\n");
- SETPORT(SSTAT1, SCSIRSTI);
- }
- } while(TESTHI(SCSISIG, ACKI) || TESTLO(SSTAT1, REQINIT));
-
- SETPORT(SSTAT1, CLRSCSIPERR);
-
- phase = GETPORT(SCSISIG) & P_MASK ;
-
- if(TESTHI(SSTAT1, SCSIPERR)) {
- if((phase & (CDO|MSGO))==0) /* DATA phase */
- return P_PARITY;
-
- make_acklow(shpnt);
- } else
- return phase;
- }
-}
-
-/* called from init/main.c */
-void aha152x_setup(char *str, int *ints)
-{
- if(setup_count>2)
- panic("aha152x: you can only configure up to two controllers\n");
-
- setup[setup_count].conf = str;
- setup[setup_count].io_port = ints[0] >= 1 ? ints[1] : 0x340;
- setup[setup_count].irq = ints[0] >= 2 ? ints[2] : 11;
- setup[setup_count].scsiid = ints[0] >= 3 ? ints[3] : 7;
- setup[setup_count].reconnect = ints[0] >= 4 ? ints[4] : 1;
- setup[setup_count].parity = ints[0] >= 5 ? ints[5] : 1;
- setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 0 /* FIXME: 1 */;
- setup[setup_count].delay = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT;
- setup[setup_count].ext_trans = ints[0] >= 8 ? ints[8] : 0;
-#ifdef DEBUG_AHA152X
- setup[setup_count].debug = ints[0] >= 9 ? ints[9] : DEBUG_DEFAULT;
- if(ints[0]>9) {
- printk("aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
- "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>[,<DEBUG>]]]]]]]]\n");
-#else
- if(ints[0]>8) {
- printk("aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
- "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n");
-#endif
- } else
- setup_count++;
-}
-
-/*
- * Test, if port_base is valid.
- */
-static int aha152x_porttest(int io_port)
-{
- int i;
-
- if(check_region(io_port, IO_RANGE))
- return 0;
-
- SETPORT(io_port+O_DMACNTRL1, 0); /* reset stack pointer */
- for(i=0; i<16; i++)
- SETPORT(io_port+O_STACK, i);
-
- SETPORT(io_port+O_DMACNTRL1, 0); /* reset stack pointer */
- for(i=0; i<16 && GETPORT(io_port+O_STACK)==i; i++)
- ;
-
- return(i==16);
-}
-
-int aha152x_checksetup(struct aha152x_setup *setup)
-{
- int i;
-
-#ifndef PCMCIA
- for(i=0; i<PORT_COUNT && (setup->io_port != ports[i]); i++)
- ;
-
- if(i==PORT_COUNT)
- return 0;
-#endif
-
- if(!aha152x_porttest(setup->io_port))
- return 0;
-
- if(setup->irq<IRQ_MIN && setup->irq>IRQ_MAX)
- return 0;
-
- if((setup->scsiid < 0) || (setup->scsiid > 7))
- return 0;
-
- if((setup->reconnect < 0) || (setup->reconnect > 1))
- return 0;
-
- if((setup->parity < 0) || (setup->parity > 1))
- return 0;
-
- if((setup->synchronous < 0) || (setup->synchronous > 1))
- return 0;
-
- if((setup->ext_trans < 0) || (setup->ext_trans > 1))
- return 0;
-
-
- return 1;
-}
-
-void aha152x_swintr(int irqno, void *dev_id, struct pt_regs * regs)
-{
- struct Scsi_Host *shpnt = aha152x_host[irqno-IRQ_MIN];
-
- if(!shpnt)
- panic("aha152x: catched software interrupt for unknown controller.\n");
-
- HOSTDATA(shpnt)->swint++;
-}
-
-
-int aha152x_detect(Scsi_Host_Template * tpnt)
-{
- int i, j, ok;
-#if defined(AUTOCONF)
- aha152x_config conf;
-#endif
-
- tpnt->proc_dir = &proc_scsi_aha152x;
-
- for(i=0; i<IRQS; i++)
- aha152x_host[i] = (struct Scsi_Host *) NULL;
-
- if(setup_count) {
- printk("aha152x: processing commandline: ");
-
- for(i=0; i<setup_count; i++)
- if(!aha152x_checksetup(&setup[i])) {
- printk("\naha152x: %s\n", setup[i].conf);
- printk("aha152x: invalid line (controller=%d)\n", i+1);
- }
-
- printk("ok\n");
- }
-
-#ifdef SETUP0
- if(setup_count<2) {
- struct aha152x_setup override = SETUP0;
-
- if(setup_count==0 || (override.io_port != setup[0].io_port))
- if(!aha152x_checksetup(&override)) {
- printk("\naha152x: invalid override SETUP0={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
- override.io_port,
- override.irq,
- override.scsiid,
- override.reconnect,
- override.parity,
- override.synchronous,
- override.delay,
- override.ext_trans);
- } else
- setup[setup_count++] = override;
- }
-#endif
-
-#ifdef SETUP1
- if(setup_count<2) {
- struct aha152x_setup override = SETUP1;
-
- if(setup_count==0 || (override.io_port != setup[0].io_port))
- if(!aha152x_checksetup(&override)) {
- printk("\naha152x: invalid override SETUP1={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
- override.io_port,
- override.irq,
- override.scsiid,
- override.reconnect,
- override.parity,
- override.synchronous,
- override.delay,
- override.ext_trans);
- } else
- setup[setup_count++] = override;
- }
-#endif
-
-#if defined(MODULE)
- if(setup_count<2 && aha152x[0]!=0) {
- setup[setup_count].conf = "";
- setup[setup_count].io_port = aha152x[0];
- setup[setup_count].irq = aha152x[1];
- setup[setup_count].scsiid = aha152x[2];
- setup[setup_count].reconnect = aha152x[3];
- setup[setup_count].parity = aha152x[4];
- setup[setup_count].synchronous = aha152x[5];
- setup[setup_count].delay = aha152x[6];
- setup[setup_count].ext_trans = aha152x[7];
-#ifdef DEBUG_AHA152X
- setup[setup_count].debug = aha152x[8];
-#endif
- if(aha152x_checksetup(&setup[setup_count]))
- setup_count++;
- else
- printk("\naha152x: invalid module argument aha152x=0x%x,%d,%d,%d,%d,%d,%d,%d\n",
- setup[setup_count].io_port,
- setup[setup_count].irq,
- setup[setup_count].scsiid,
- setup[setup_count].reconnect,
- setup[setup_count].parity,
- setup[setup_count].synchronous,
- setup[setup_count].delay,
- setup[setup_count].ext_trans);
- }
-
- if(setup_count<2 && aha152x1[0]!=0) {
- setup[setup_count].conf = "";
- setup[setup_count].io_port = aha152x1[0];
- setup[setup_count].irq = aha152x1[1];
- setup[setup_count].scsiid = aha152x1[2];
- setup[setup_count].reconnect = aha152x1[3];
- setup[setup_count].parity = aha152x1[4];
- setup[setup_count].synchronous = aha152x1[5];
- setup[setup_count].delay = aha152x1[6];
- setup[setup_count].ext_trans = aha152x1[7];
-#ifdef DEBUG_AHA152X
- setup[setup_count].debug = aha152x1[8];
-#endif
- if(aha152x_checksetup(&setup[setup_count]))
- setup_count++;
- else
- printk("\naha152x: invalid module argument aha152x1=0x%x,%d,%d,%d,%d,%d,%d,%d\n",
- setup[setup_count].io_port,
- setup[setup_count].irq,
- setup[setup_count].scsiid,
- setup[setup_count].reconnect,
- setup[setup_count].parity,
- setup[setup_count].synchronous,
- setup[setup_count].delay,
- setup[setup_count].ext_trans);
- }
-#endif
-
-#if defined(AUTOCONF)
- if(setup_count<2) {
-#if !defined(SKIP_BIOSTEST)
- ok=0;
- for(i=0; i < ADDRESS_COUNT && !ok; i++)
- for(j=0; (j < SIGNATURE_COUNT) && !ok; j++)
- ok=!memcmp((void *) addresses[i]+signatures[j].sig_offset,
- (void *) signatures[j].signature,
- (int) signatures[j].sig_length);
-
- if(!ok && setup_count==0)
- return 0;
-
- printk("aha152x: BIOS test: passed, ");
-#else
- printk("aha152x: ");
-#endif /* !SKIP_BIOSTEST */
-
- ok=0;
- for(i=0; i<PORT_COUNT && setup_count<2; i++) {
- if((setup_count==1) && (setup[0].io_port == ports[i]))
- continue;
-
- if(aha152x_porttest(ports[i])) {
- ok++;
- setup[setup_count].io_port = ports[i];
-
- conf.cf_port =
- (GETPORT(ports[i]+O_PORTA)<<8) + GETPORT(ports[i]+O_PORTB);
-
- setup[setup_count].irq = IRQ_MIN + conf.cf_irq;
- setup[setup_count].scsiid = conf.cf_id;
- setup[setup_count].reconnect = conf.cf_tardisc;
- setup[setup_count].parity = !conf.cf_parity;
- setup[setup_count].synchronous = 0 /* FIXME: conf.cf_syncneg */;
- setup[setup_count].delay = DELAY_DEFAULT;
- setup[setup_count].ext_trans = 0;
-#ifdef DEBUG_AHA152X
- setup[setup_count].debug = DEBUG_DEFAULT;
-#endif
- setup_count++;
- }
- }
-
- if(ok)
- printk("auto configuration: ok, ");
- }
-#endif
-
- printk("detected %d controller(s)\n", setup_count);
-
- for(i=0; i<setup_count; i++) {
- struct Scsi_Host *shpnt;
- unsigned long int the_time;
-
- shpnt = aha152x_host[setup[i].irq-IRQ_MIN] =
- scsi_register(tpnt, sizeof(struct aha152x_hostdata));
-
- shpnt->io_port = setup[i].io_port;
- shpnt->n_io_port = IO_RANGE;
- shpnt->irq = setup[i].irq;
-
- ISSUE_SC = (Scsi_Cmnd *) NULL;
- CURRENT_SC = (Scsi_Cmnd *) NULL;
- DISCONNECTED_SC = (Scsi_Cmnd *) NULL;
-
- HOSTDATA(shpnt)->reconnect = setup[i].reconnect;
- HOSTDATA(shpnt)->parity = setup[i].parity;
- HOSTDATA(shpnt)->synchronous = setup[i].synchronous;
- HOSTDATA(shpnt)->delay = setup[i].delay;
- HOSTDATA(shpnt)->ext_trans = setup[i].ext_trans;
-#ifdef DEBUG_AHA152X
- HOSTDATA(shpnt)->debug = setup[i].debug;
-#endif
-
- HOSTDATA(shpnt)->aborting = 0;
- HOSTDATA(shpnt)->abortion_complete = 0;
- HOSTDATA(shpnt)->abort_result = 0;
- HOSTDATA(shpnt)->commands = 0;
-
- HOSTDATA(shpnt)->message_len = 0;
-
- for(j=0; j<8; j++)
- HOSTDATA(shpnt)->syncrate[j] = 0;
-
- SETPORT(SCSIID, setup[i].scsiid << 4);
- shpnt->this_id=setup[i].scsiid;
-
- if(setup[i].reconnect)
- shpnt->can_queue=AHA152X_MAXQUEUE;
-
- /* RESET OUT */
- SETBITS(SCSISEQ, SCSIRSTO);
- do_pause(30);
- CLRBITS(SCSISEQ, SCSIRSTO);
- do_pause(setup[i].delay);
-
- aha152x_reset_ports(shpnt);
-
- printk("aha152x%d: vital data: PORTBASE=0x%03x, IRQ=%d, SCSI ID=%d,"
- " reconnect=%s, parity=%s, synchronous=%s, delay=%d, extended translation=%s\n",
- i,
- shpnt->io_port,
- shpnt->irq,
- shpnt->this_id,
- HOSTDATA(shpnt)->reconnect ? "enabled" : "disabled",
- HOSTDATA(shpnt)->parity ? "enabled" : "disabled",
- HOSTDATA(shpnt)->synchronous ? "enabled" : "disabled",
- HOSTDATA(shpnt)->delay,
- HOSTDATA(shpnt)->ext_trans ? "enabled" : "disabled");
-
- request_region(shpnt->io_port, IO_RANGE, "aha152x"); /* Register */
-
- /* not expecting any interrupts */
- SETPORT(SIMODE0, 0);
- SETPORT(SIMODE1, 0);
-
- SETBITS(DMACNTRL0, INTEN);
-
- ok = request_irq(shpnt->irq, aha152x_swintr, SA_INTERRUPT, "aha152x", NULL);
- if(ok<0) {
- if(ok == -EINVAL)
- printk("aha152x%d: bad IRQ %d.\n", i, shpnt->irq);
- else if(ok == -EBUSY)
- printk("aha152x%d: IRQ %d already in use.\n", i, shpnt->irq);
- else
- printk("\naha152x%d: Unexpected error code %d on requesting IRQ %d.\n", i, ok, shpnt->irq);
- printk("aha152x: driver needs an IRQ.\n");
-
- scsi_unregister(shpnt);
- shpnt=aha152x_host[shpnt->irq-IRQ_MIN]=0;
- continue;
- }
-
- HOSTDATA(shpnt)->swint=0;
-
- printk("aha152x: trying software interrupt, ");
- SETBITS(DMACNTRL0, SWINT);
-
- the_time=jiffies+100;
- while(!HOSTDATA(shpnt)->swint && jiffies<the_time)
- barrier();
-
- free_irq(shpnt->irq,0);
-
- if(!HOSTDATA(shpnt)->swint) {
- if(TESTHI(DMASTAT, INTSTAT)) {
- printk("lost.\n");
- } else {
- printk("failed.\n");
- }
-
- printk("aha152x: IRQ %d possibly wrong. Please verify.\n", shpnt->irq);
-
- scsi_unregister(shpnt);
- shpnt=aha152x_host[shpnt->irq-IRQ_MIN]=0;
- continue;
- }
-
- printk("ok.\n");
-
- CLRBITS(DMACNTRL0, SWINT);
-
- /* clear interrupts */
- SETPORT(SSTAT0, 0x7f);
- SETPORT(SSTAT1, 0xef);
-
- if(request_irq(shpnt->irq,aha152x_intr,SA_INTERRUPT,"aha152x",NULL)<0) {
- printk("aha152x: failed to reassign interrupt.\n");
- }
- }
-
- return (setup_count>0);
-}
-
-/*
- * Queue a command and setup interrupts for a free bus.
- */
-int aha152x_queue(Scsi_Cmnd * SCpnt, void (*done)(Scsi_Cmnd *))
-{
- struct Scsi_Host *shpnt = SCpnt->host;
- unsigned long flags;
-
-#if defined(DEBUG_RACE)
- enter_driver("queue");
-#else
-#if defined(DEBUG_QUEUE)
- if(HOSTDATA(shpnt)->debug & debug_queue)
- printk("aha152x: queue(), ");
-#endif
-#endif
-
-#if defined(DEBUG_QUEUE)
- if(HOSTDATA(shpnt)->debug & debug_queue) {
- printk("SCpnt (target = %d lun = %d cmnd = ",
- SCpnt->target, SCpnt->lun);
- print_command(SCpnt->cmnd);
- printk(", cmd_len=%d, pieces = %d size = %u), ",
- SCpnt->cmd_len, SCpnt->use_sg, SCpnt->request_bufflen);
- disp_ports(shpnt);
- }
-#endif
-
- SCpnt->scsi_done = done;
-
- /* setup scratch area
- SCp.ptr : buffer pointer
- SCp.this_residual : buffer length
- SCp.buffer : next buffer
- SCp.buffers_residual : left buffers in list
- SCp.phase : current state of the command */
- SCpnt->SCp.phase = not_issued;
- if (SCpnt->use_sg) {
- SCpnt->SCp.buffer = (struct scatterlist *) SCpnt->request_buffer;
- SCpnt->SCp.ptr = SCpnt->SCp.buffer->address;
- SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length;
- SCpnt->SCp.buffers_residual = SCpnt->use_sg - 1;
- } else {
- SCpnt->SCp.ptr = (char *)SCpnt->request_buffer;
- SCpnt->SCp.this_residual = SCpnt->request_bufflen;
- SCpnt->SCp.buffer = NULL;
- SCpnt->SCp.buffers_residual = 0;
- }
-
- SCpnt->SCp.Status = CHECK_CONDITION;
- SCpnt->SCp.Message = 0;
- SCpnt->SCp.have_data_in = 0;
- SCpnt->SCp.sent_command = 0;
-
- /* Turn led on, when this is the first command. */
- save_flags(flags);
- cli();
- HOSTDATA(shpnt)->commands++;
- if(HOSTDATA(shpnt)->commands==1)
- SETPORT(PORTA, 1);
-
-#if defined(DEBUG_QUEUES)
- if(HOSTDATA(shpnt)->debug & debug_queues)
- printk("i+ (%d), ", HOSTDATA(shpnt)->commands);
-#endif
- append_SC(&ISSUE_SC, SCpnt);
-
- /* Enable bus free interrupt, when we aren't currently on the bus */
- if(!CURRENT_SC) {
- SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
- SETPORT(SIMODE1, ISSUE_SC ? ENBUSFREE : 0);
- }
- restore_flags(flags);
-
-#if defined(DEBUG_RACE)
- leave_driver("queue");
-#endif
-
- return 0;
-}
-
-/*
- * We only support commands in interrupt-driven fashion
- */
-int aha152x_command(Scsi_Cmnd *SCpnt)
-{
- printk("aha152x: interrupt driven driver; use aha152x_queue()\n");
- return -1;
-}
-
-/*
- * Abort a queued command
- * (commands that are on the bus can't be aborted easily)
- */
-int aha152x_abort(Scsi_Cmnd *SCpnt)
-{
- struct Scsi_Host *shpnt = SCpnt->host;
- unsigned long flags;
- Scsi_Cmnd *ptr, *prev;
-
- save_flags(flags);
- cli();
-
-#if defined(DEBUG_ABORT)
- if(HOSTDATA(shpnt)->debug & debug_abort) {
- printk("aha152x: abort(), SCpnt=0x%08x, ", (unsigned int) SCpnt);
- show_queues(shpnt);
- }
-#endif
-
- /* look for command in issue queue */
- for(ptr=ISSUE_SC, prev=NULL;
- ptr && ptr!=SCpnt;
- prev=ptr, ptr=(Scsi_Cmnd *) ptr->host_scribble)
- ;
-
- if(ptr) {
- /* dequeue */
- if(prev)
- prev->host_scribble = ptr->host_scribble;
- else
- ISSUE_SC = (Scsi_Cmnd *) ptr->host_scribble;
-
- HOSTDATA(shpnt)->commands--;
-
- restore_flags(flags);
-
- ptr->host_scribble = NULL;
- ptr->result = DID_ABORT << 16;
- ptr->scsi_done(ptr);
-
- return SCSI_ABORT_SUCCESS;
- }
-
- /* if the bus is busy or a command is currently processed,
- we can't do anything more */
- if (TESTLO(SSTAT1, BUSFREE) || (CURRENT_SC && CURRENT_SC!=SCpnt)) {
- /* fail abortion, if bus is busy */
-
- if(!CURRENT_SC)
- printk("bus busy w/o current command, ");
-
- restore_flags(flags);
-
- return SCSI_ABORT_BUSY;
- }
-
- /* bus is free */
-
- if(CURRENT_SC) {
- HOSTDATA(shpnt)->commands--;
-
- /* target entered bus free before COMMAND COMPLETE, nothing to abort */
- restore_flags(flags);
- CURRENT_SC->result = DID_ERROR << 16;
- CURRENT_SC->scsi_done(CURRENT_SC);
- CURRENT_SC = (Scsi_Cmnd *) NULL;
-
- return SCSI_ABORT_SUCCESS;
- }
-
- /* look for command in disconnected queue */
- for(ptr=DISCONNECTED_SC, prev=NULL;
- ptr && ptr!=SCpnt;
- prev=ptr, ptr=(Scsi_Cmnd *) ptr->host_scribble)
- ;
-
- if(!ptr) {
- /* command wasn't found */
- printk("command not found\n");
- restore_flags(flags);
-
- return SCSI_ABORT_NOT_RUNNING;
- }
-
- if(!HOSTDATA(shpnt)->aborting) {
- /* dequeue */
- if(prev)
- prev->host_scribble = ptr->host_scribble;
- else
- DISCONNECTED_SC = (Scsi_Cmnd *) ptr->host_scribble;
-
- HOSTDATA(shpnt)->commands--;
-
- /* set command current and initiate selection,
- let the interrupt routine take care of the abortion */
- CURRENT_SC = ptr;
- ptr->SCp.phase = in_selection|aborted;
- SETPORT(SCSIID, (shpnt->this_id << OID_) | CURRENT_SC->target);
-
- ADDMSG(ABORT);
-
- /* enable interrupts for SELECTION OUT DONE and SELECTION TIME OUT */
- SETPORT(SIMODE0, ENSELDO | (DISCONNECTED_SC ? ENSELDI : 0));
- SETPORT(SIMODE1, ENSELTIMO);
-
- /* Enable SELECTION OUT sequence */
- SETBITS(SCSISEQ, ENSELO | ENAUTOATNO);
-
- SETBITS(DMACNTRL0, INTEN);
- HOSTDATA(shpnt)->abort_result=SCSI_ABORT_SUCCESS;
- HOSTDATA(shpnt)->aborting++;
- HOSTDATA(shpnt)->abortion_complete=0;
-
- sti(); /* Hi Eric, guess what ;-) */
-
- /* sleep until the abortion is complete */
- while(!HOSTDATA(shpnt)->abortion_complete)
- barrier();
- HOSTDATA(shpnt)->aborting=0;
-
- return HOSTDATA(shpnt)->abort_result;
- } else {
- /* we're already aborting a command */
- restore_flags(flags);
-
- return SCSI_ABORT_BUSY;
- }
-}
-
-/*
- * Restore default values to the AIC-6260 registers and reset the fifos
- */
-static void aha152x_reset_ports(struct Scsi_Host *shpnt)
-{
- /* disable interrupts */
- SETPORT(DMACNTRL0, RSTFIFO);
-
- SETPORT(SCSISEQ, 0);
-
- SETPORT(SXFRCTL1, 0);
- SETPORT(SCSISIG, 0);
- SETPORT(SCSIRATE, 0);
-
- /* clear all interrupt conditions */
- SETPORT(SSTAT0, 0x7f);
- SETPORT(SSTAT1, 0xef);
-
- SETPORT(SSTAT4, SYNCERR|FWERR|FRERR);
-
- SETPORT(DMACNTRL0, 0);
- SETPORT(DMACNTRL1, 0);
-
- SETPORT(BRSTCNTRL, 0xf1);
-
- /* clear SCSI fifo and transfer count */
- SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
- SETPORT(SXFRCTL0, CH1);
-
- /* enable interrupts */
- SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
- SETPORT(SIMODE1, ISSUE_SC ? ENBUSFREE : 0);
-}
-
-/*
- * Reset registers, reset a hanging bus and
- * kill active and disconnected commands for target w/o soft reset
- */
-int aha152x_reset(Scsi_Cmnd *SCpnt, unsigned int unused)
-{
- struct Scsi_Host *shpnt = SCpnt->host;
- unsigned long flags;
- Scsi_Cmnd *ptr, *prev, *next;
-
- aha152x_reset_ports(shpnt);
-
- /* Reset, if bus hangs */
- if(TESTLO(SSTAT1, BUSFREE)) {
- CLRBITS(DMACNTRL0, INTEN);
-
-#if defined(DEBUG_RESET)
- if(HOSTDATA(shpnt)->debug & debug_reset) {
- printk("aha152x: reset(), bus not free: SCSI RESET OUT\n");
- show_queues(shpnt);
- }
-#endif
-
- ptr=CURRENT_SC;
- if(ptr && !ptr->device->soft_reset) {
- ptr->host_scribble = NULL;
- ptr->result = DID_RESET << 16;
- ptr->scsi_done(CURRENT_SC);
- CURRENT_SC=NULL;
- }
-
- save_flags(flags);
- cli();
- prev=NULL; ptr=DISCONNECTED_SC;
- while(ptr) {
- if(!ptr->device->soft_reset) {
- if(prev)
- prev->host_scribble = ptr->host_scribble;
- else
- DISCONNECTED_SC = (Scsi_Cmnd *) ptr->host_scribble;
-
- next = (Scsi_Cmnd *) ptr->host_scribble;
-
- ptr->host_scribble = NULL;
- ptr->result = DID_RESET << 16;
- ptr->scsi_done(ptr);
-
- ptr = next;
- } else {
- prev=ptr;
- ptr = (Scsi_Cmnd *) ptr->host_scribble;
- }
- }
- restore_flags(flags);
-
-#if defined(DEBUG_RESET)
- if(HOSTDATA(shpnt)->debug & debug_reset) {
- printk("commands on targets w/ soft-resets:\n");
- show_queues(shpnt);
- }
-#endif
-
- /* RESET OUT */
- SETPORT(SCSISEQ, SCSIRSTO);
- do_pause(30);
- SETPORT(SCSISEQ, 0);
- do_pause(DELAY);
-
- SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
- SETPORT(SIMODE1, ISSUE_SC ? ENBUSFREE : 0);
-
- SETPORT(DMACNTRL0, INTEN);
- }
-
- return SCSI_RESET_SUCCESS;
-}
-
-/*
- * Return the "logical geometry"
- */
-int aha152x_biosparam(Scsi_Disk * disk, kdev_t dev, int *info_array)
-{
- struct Scsi_Host *shpnt=disk->device->host;
-
-#if defined(DEBUG_BIOSPARAM)
- if(HOSTDATA(shpnt)->debug & debug_biosparam)
- printk("aha152x_biosparam: dev=%s, size=%d, ",
- kdevname(dev), disk->capacity);
-#endif
-
- /* try default translation */
- info_array[0]=64;
- info_array[1]=32;
- info_array[2]=disk->capacity / (64 * 32);
-
- /* for disks >1GB do some guessing */
- if(info_array[2]>=1024) {
- int info[3];
-
- /* try to figure out the geometry from the partition table */
- if(scsicam_bios_param(disk, dev, info)<0 ||
- !((info[0]==64 && info[1]==32) || (info[0]==255 && info[1]==63))) {
- if(EXT_TRANS) {
- printk("aha152x: unable to verify geometry for disk with >1GB.\n"
- " using extended translation.\n");
- info_array[0] = 255;
- info_array[1] = 63;
- info_array[2] = disk->capacity / (255 * 63);
- } else {
- printk("aha152x: unable to verify geometry for disk with >1GB.\n"
- " Using default translation. Please verify yourself.\n"
- " Perhaps you need to enable extended translation in the driver.\n"
- " See /usr/src/linux/drivers/scsi/aha152x.c for details.\n");
- }
- } else {
- info_array[0]=info[0];
- info_array[1]=info[1];
- info_array[2]=info[2];
-
- if(info[0]==255 && !EXT_TRANS) {
- printk("aha152x: current partition table is using extended translation.\n"
- " using it also, although it's not explicty enabled.\n");
- }
- }
- }
-
-#if defined(DEBUG_BIOSPARAM)
- if(HOSTDATA(shpnt)->debug & debug_biosparam) {
- printk("bios geometry: head=%d, sec=%d, cyl=%d\n",
- info_array[0], info_array[1], info_array[2]);
- printk("WARNING: check, if the bios geometry is correct.\n");
- }
-#endif
-
- return 0;
-}
-
-/*
- * Internal done function
- */
-void aha152x_done(struct Scsi_Host *shpnt, int error)
-{
- unsigned long flags;
- Scsi_Cmnd *done_SC;
-
-#if defined(DEBUG_DONE)
- if(HOSTDATA(shpnt)->debug & debug_done) {
- printk("\naha152x: done(), ");
- disp_ports(shpnt);
- }
-#endif
-
- if(CURRENT_SC) {
-#if defined(DEBUG_DONE)
- if(HOSTDATA(shpnt)->debug & debug_done)
- printk("done(%x), ", error);
-#endif
-
- save_flags(flags);
- cli();
-
- done_SC = CURRENT_SC;
- CURRENT_SC = NULL;
-
- /* turn led off, when no commands are in the driver */
- HOSTDATA(shpnt)->commands--;
- if(!HOSTDATA(shpnt)->commands)
- SETPORT(PORTA, 0); /* turn led off */
-
-#if defined(DEBUG_QUEUES)
- if(HOSTDATA(shpnt)->debug & debug_queues)
- printk("ok (%d), ", HOSTDATA(shpnt)->commands);
-#endif
- restore_flags(flags);
-
- SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
- SETPORT(SIMODE1, ISSUE_SC ? ENBUSFREE : 0);
-
-#if 0
-/* Why poll for the BUS FREE phase, when we have setup the interrupt!? */
-#if defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & debug_phases)
- printk("BUS FREE loop, ");
-#endif
- while(TESTLO(SSTAT1, BUSFREE))
- barrier();
-#if defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & debug_phases)
- printk("BUS FREE\n");
-#endif
-#endif
-
- done_SC->result = error;
- if(done_SC->scsi_done) {
-#if defined(DEBUG_DONE)
- if(HOSTDATA(shpnt)->debug & debug_done)
- printk("calling scsi_done, ");
-#endif
- done_SC->scsi_done(done_SC);
-#if defined(DEBUG_DONE)
- if(HOSTDATA(shpnt)->debug & debug_done)
- printk("done returned, ");
-#endif
- } else
- panic("aha152x: current_SC->scsi_done() == NULL");
- } else
- aha152x_panic(shpnt, "done() called outside of command");
-}
-
-/*
- * Interrupts handler (main routine of the driver)
- */
-void aha152x_intr(int irqno, void *dev_id, struct pt_regs * regs)
-{
- struct Scsi_Host *shpnt = aha152x_host[irqno-IRQ_MIN];
- unsigned int flags;
- int done=0, phase;
-
-#if defined(DEBUG_RACE)
- enter_driver("intr");
-#else
-#if defined(DEBUG_INTR)
- if(HOSTDATA(shpnt)->debug & debug_intr)
- printk("\naha152x: intr(), ");
-#endif
-#endif
-
- if(!shpnt)
- panic("aha152x: catched interrupt for unknown controller.\n");
-
- /* no more interrupts from the controller, while we're busy.
- INTEN has to be restored, when we're ready to leave
- intr(). To avoid race conditions, we have to return
- immediately afterwards. */
- CLRBITS(DMACNTRL0, INTEN);
- sti(); /* Yes, sti() really needs to be here */
-
- /* disconnected target is trying to reconnect.
- Only possible, if we have disconnected nexuses and
- nothing is occupying the bus.
- */
- if(TESTHI(SSTAT0, SELDI) &&
- DISCONNECTED_SC &&
- (!CURRENT_SC || (CURRENT_SC->SCp.phase & in_selection)) ) {
- int identify_msg, target, i;
-
- /* Avoid conflicts when a target reconnects
- while we are trying to connect to another. */
- if(CURRENT_SC) {
-#if defined(DEBUG_QUEUES)
- if(HOSTDATA(shpnt)->debug & debug_queues)
- printk("i+, ");
-#endif
- save_flags(flags);
- cli();
- append_SC(&ISSUE_SC, CURRENT_SC);
- CURRENT_SC=NULL;
- restore_flags(flags);
- }
-
- /* disable sequences */
- SETPORT(SCSISEQ, 0);
- SETPORT(SSTAT0, CLRSELDI);
- SETPORT(SSTAT1, CLRBUSFREE);
-
-#if defined(DEBUG_QUEUES) || defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & (debug_queues|debug_phases))
- printk("reselected, ");
-#endif
-
- i = GETPORT(SELID) & ~(1 << shpnt->this_id);
- target=0;
-
- if(i==0)
- aha152x_panic(shpnt, "reconnecting target unknown");
-
- for(; (i & 1)==0; target++, i>>=1)
- ;
-
-#if defined(DEBUG_QUEUES)
- if(HOSTDATA(shpnt)->debug & debug_queues)
- printk("SELID=%02x, target=%d, ", GETPORT(SELID), target);
-#endif
- SETPORT(SCSIID, (shpnt->this_id << OID_) | target);
- SETPORT(SCSISEQ, ENRESELI);
-
- if(TESTLO(SSTAT0, SELDI))
- aha152x_panic(shpnt, "RESELI failed");
-
- SETPORT(SCSIRATE, HOSTDATA(shpnt)->syncrate[target]&0x7f);
-
- SETPORT(SCSISIG, P_MSGI);
-
- /* Get identify message */
- if((i=getphase(shpnt))!=P_MSGI) {
- printk("target doesn't enter MSGI to identify (phase=%02x)\n", i);
- aha152x_panic(shpnt, "unknown lun");
- }
- SETPORT(SCSISEQ, 0);
-
- SETPORT(SXFRCTL0, CH1);
-
- identify_msg = GETPORT(SCSIBUS);
-
- if(!(identify_msg & IDENTIFY_BASE)) {
- printk("target=%d, inbound message (%02x) != IDENTIFY\n",
- target, identify_msg);
- aha152x_panic(shpnt, "unknown lun");
- }
-
-
-#if defined(DEBUG_QUEUES)
- if(HOSTDATA(shpnt)->debug & debug_queues)
- printk("identify=%02x, lun=%d, ", identify_msg, identify_msg & 0x3f);
-#endif
-
- save_flags(flags);
- cli();
-
-#if defined(DEBUG_QUEUES)
- if(HOSTDATA(shpnt)->debug & debug_queues)
- printk("d-, ");
-#endif
- CURRENT_SC = remove_SC(&DISCONNECTED_SC, target, identify_msg & 0x3f);
-
- if(!CURRENT_SC) {
- printk("lun=%d, ", identify_msg & 0x3f);
- aha152x_panic(shpnt, "no disconnected command for that lun");
- }
-
- CURRENT_SC->SCp.phase &= ~disconnected;
- restore_flags(flags);
-
- make_acklow(shpnt);
- if(getphase(shpnt)!=P_MSGI) {
- SETPORT(SIMODE0, 0);
- SETPORT(SIMODE1, ENPHASEMIS|ENBUSFREE);
-#if defined(DEBUG_RACE)
- leave_driver("(reselected) intr");
-#endif
- SETBITS(DMACNTRL0, INTEN);
- return;
- }
- }
-
- /* Check, if we aren't busy with a command */
- if(!CURRENT_SC) {
- /* bus is free to issue a queued command */
- if(TESTHI(SSTAT1, BUSFREE) && ISSUE_SC) {
- save_flags(flags);
- cli();
-#if defined(DEBUG_QUEUES)
- if(HOSTDATA(shpnt)->debug & debug_queues)
- printk("i-, ");
-#endif
- CURRENT_SC = remove_first_SC(&ISSUE_SC);
- restore_flags(flags);
-
-#if defined(DEBUG_INTR) || defined(DEBUG_SELECTION) || defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & (debug_intr|debug_selection|debug_phases))
- printk("issuing command, ");
-#endif
- CURRENT_SC->SCp.phase = in_selection;
-
-#if defined(DEBUG_INTR) || defined(DEBUG_SELECTION) || defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & (debug_intr|debug_selection|debug_phases))
- printk("selecting %d, ", CURRENT_SC->target);
-#endif
- SETPORT(SCSIID, (shpnt->this_id << OID_) | CURRENT_SC->target);
-
- /* Enable interrupts for SELECTION OUT DONE and SELECTION OUT INITIATED */
- SETPORT(SXFRCTL1, HOSTDATA(shpnt)->parity ? (ENSPCHK|ENSTIMER) : ENSTIMER);
-
- /* enable interrupts for SELECTION OUT DONE and SELECTION TIME OUT */
- SETPORT(SIMODE0, ENSELDO | (DISCONNECTED_SC ? ENSELDI : 0));
- SETPORT(SIMODE1, ENSELTIMO);
-
- /* Enable SELECTION OUT sequence */
- SETBITS(SCSISEQ, ENSELO | ENAUTOATNO);
-
- } else {
- /* No command we are busy with and no new to issue */
- printk("aha152x: ignoring spurious interrupt, nothing to do\n");
- if(TESTHI(DMACNTRL0, SWINT)) {
- printk("aha152x: SWINT is set! Why?\n");
- CLRBITS(DMACNTRL0, SWINT);
- }
- show_queues(shpnt);
- }
-
-#if defined(DEBUG_RACE)
- leave_driver("(selecting) intr");
-#endif
- SETBITS(DMACNTRL0, INTEN);
- return;
- }
-
- /* the bus is busy with something */
-
-#if defined(DEBUG_INTR)
- if(HOSTDATA(shpnt)->debug & debug_intr)
- disp_ports(shpnt);
-#endif
-
- /* we are waiting for the result of a selection attempt */
- if(CURRENT_SC->SCp.phase & in_selection) {
- if(TESTLO(SSTAT1, SELTO)) {
- /* no timeout */
- if(TESTHI(SSTAT0, SELDO)) {
- /* clear BUS FREE interrupt */
- SETPORT(SSTAT1, CLRBUSFREE);
-
- /* Disable SELECTION OUT sequence */
- CLRBITS(SCSISEQ, ENSELO|ENAUTOATNO);
-
- /* Disable SELECTION OUT DONE interrupt */
- CLRBITS(SIMODE0, ENSELDO);
- CLRBITS(SIMODE1, ENSELTIMO);
-
- if(TESTLO(SSTAT0, SELDO)) {
- printk("aha152x: passing bus free condition\n");
-
-#if defined(DEBUG_RACE)
- leave_driver("(passing bus free) intr");
-#endif
- SETBITS(DMACNTRL0, INTEN);
-
- if(CURRENT_SC->SCp.phase & aborted) {
- HOSTDATA(shpnt)->abort_result=SCSI_ABORT_ERROR;
- HOSTDATA(shpnt)->abortion_complete++;
- }
-
- aha152x_done(shpnt, DID_NO_CONNECT << 16);
-
- return;
- }
-#if defined(DEBUG_SELECTION) || defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & (debug_selection|debug_phases))
- printk("SELDO (SELID=%x), ", GETPORT(SELID));
-#endif
-
- /* selection was done */
- SETPORT(SSTAT0, CLRSELDO);
-
-#if defined(DEBUG_ABORT)
- if((HOSTDATA(shpnt)->debug & debug_abort) && (CURRENT_SC->SCp.phase & aborted))
- printk("(ABORT) target selected, ");
-#endif
-
- CURRENT_SC->SCp.phase &= ~in_selection;
- CURRENT_SC->SCp.phase |= in_other;
-
- ADDMSG(IDENTIFY(HOSTDATA(shpnt)->reconnect,CURRENT_SC->lun));
-
- if(!(SYNCRATE&0x80) && HOSTDATA(shpnt)->synchronous) {
- ADDMSG(EXTENDED_MESSAGE);
- ADDMSG(3);
- ADDMSG(EXTENDED_SDTR);
- ADDMSG(50);
- ADDMSG(8);
-
- printk("outbound SDTR: ");
- print_msg(&MSG(MSGLEN-5));
-
- SYNCRATE=0x80;
- CURRENT_SC->SCp.phase |= in_sync;
- }
-
-#if defined(DEBUG_RACE)
- leave_driver("(SELDO) intr");
-#endif
- SETPORT(SCSIRATE, SYNCRATE&0x7f);
-
- SETPORT(SCSISIG, P_MSGO);
-
- SETPORT(SIMODE0, 0);
- SETPORT(SIMODE1, ENREQINIT|ENBUSFREE);
- SETBITS(DMACNTRL0, INTEN);
-
- return;
- } else
- aha152x_panic(shpnt, "neither timeout nor selection\007");
- } else {
-#if defined(DEBUG_SELECTION) || defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & (debug_selection|debug_phases))
- printk("SELTO, ");
-#endif
- /* end selection attempt */
- CLRBITS(SCSISEQ, ENSELO|ENAUTOATNO);
-
- /* timeout */
- SETPORT(SSTAT1, CLRSELTIMO);
-
- SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
- SETPORT(SIMODE1, ISSUE_SC ? ENBUSFREE : 0);
- SETBITS(DMACNTRL0, INTEN);
-#if defined(DEBUG_RACE)
- leave_driver("(SELTO) intr");
-#endif
-
- if(CURRENT_SC->SCp.phase & aborted) {
-#if defined(DEBUG_ABORT)
- if(HOSTDATA(shpnt)->debug & debug_abort)
- printk("(ABORT) selection timeout, ");
-#endif
- HOSTDATA(shpnt)->abort_result=SCSI_ABORT_ERROR;
- HOSTDATA(shpnt)->abortion_complete++;
- }
-
- if(TESTLO(SSTAT0, SELINGO))
- /* ARBITRATION not won */
- aha152x_done(shpnt, DID_BUS_BUSY << 16);
- else
- /* ARBITRATION won, but SELECTION failed */
- aha152x_done(shpnt, DID_NO_CONNECT << 16);
-
- return;
- }
- }
-
- /* enable interrupt, when target leaves current phase */
- phase = getphase(shpnt);
- if(!(phase & ~P_MASK)) /* "real" phase */
- SETPORT(SCSISIG, phase);
- SETPORT(SSTAT1, CLRPHASECHG);
- CURRENT_SC->SCp.phase =
- (CURRENT_SC->SCp.phase & ~((P_MASK|1)<<16)) | (phase << 16);
-
- /* information transfer phase */
- switch(phase) {
- case P_MSGO: /* MESSAGE OUT */
- {
- int i, identify=0, abort=0;
-
-#if defined(DEBUG_INTR) || defined(DEBUG_MSGO) || defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & (debug_intr|debug_msgo|debug_phases))
- printk("MESSAGE OUT, ");
-#endif
- if(MSGLEN==0) {
- ADDMSG(MESSAGE_REJECT);
-#if defined(DEBUG_MSGO)
- if(HOSTDATA(shpnt)->debug & debug_msgo)
- printk("unexpected MESSAGE OUT phase; rejecting, ");
-#endif
- }
-
- CLRBITS(SXFRCTL0, ENDMA);
-
- SETPORT(SIMODE0, 0);
- SETPORT(SIMODE1, ENPHASEMIS|ENREQINIT|ENBUSFREE);
-
- /* wait for data latch to become ready or a phase change */
- while(TESTLO(DMASTAT, INTSTAT))
- barrier();
-
-#if defined(DEBUG_MSGO)
- if(HOSTDATA(shpnt)->debug & debug_msgo) {
- int i;
-
- printk("messages (");
- for(i=0; i<MSGLEN; i+=print_msg(&MSG(i)), printk(" "))
- ;
- printk("), ");
- }
-#endif
-
- for(i=0; i<MSGLEN && TESTLO(SSTAT1, PHASEMIS); i++) {
-#if defined(DEBUG_MSGO)
- if(HOSTDATA(shpnt)->debug & debug_msgo)
- printk("%x ", MSG(i));
-#endif
- if(i==MSGLEN-1) {
- /* Leave MESSAGE OUT after transfer */
- SETPORT(SSTAT1, CLRATNO);
- }
-
- SETPORT(SCSIDAT, MSG(i));
-
- make_acklow(shpnt);
- getphase(shpnt);
-
- if(MSG(i)==IDENTIFY(HOSTDATA(shpnt)->reconnect,CURRENT_SC->lun))
- identify++;
-
- if(MSG(i)==ABORT)
- abort++;
-
- }
-
- MSGLEN=0;
-
- if(identify)
- CURRENT_SC->SCp.phase |= sent_ident;
-
- if(abort) {
- /* revive abort(); abort() enables interrupts */
- HOSTDATA(shpnt)->abort_result=SCSI_ABORT_SUCCESS;
- HOSTDATA(shpnt)->abortion_complete++;
-
- CURRENT_SC->SCp.phase &= ~(P_MASK<<16);
-
- /* exit */
- SETBITS(DMACNTRL0, INTEN);
-#if defined(DEBUG_RACE)
- leave_driver("(ABORT) intr");
-#endif
- aha152x_done(shpnt, DID_ABORT<<16);
-
- return;
- }
- }
- break;
-
- case P_CMD: /* COMMAND phase */
-#if defined(DEBUG_INTR) || defined(DEBUG_CMD) || defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & (debug_intr|debug_cmd|debug_phases))
- printk("COMMAND, ");
-#endif
- if(!(CURRENT_SC->SCp.sent_command)) {
- int i;
-
- CLRBITS(SXFRCTL0, ENDMA);
-
- SETPORT(SIMODE0, 0);
- SETPORT(SIMODE1, ENPHASEMIS|ENREQINIT|ENBUSFREE);
-
- /* wait for data latch to become ready or a phase change */
- while(TESTLO(DMASTAT, INTSTAT))
- barrier();
-
- for(i=0; i<CURRENT_SC->cmd_len && TESTLO(SSTAT1, PHASEMIS); i++) {
- SETPORT(SCSIDAT, CURRENT_SC->cmnd[i]);
-
- make_acklow(shpnt);
- getphase(shpnt);
- }
-
- if(i<CURRENT_SC->cmd_len && TESTHI(SSTAT1, PHASEMIS))
- aha152x_panic(shpnt, "target left COMMAND");
-
- CURRENT_SC->SCp.sent_command++;
- } else
- aha152x_panic(shpnt, "Nothing to send while in COMMAND");
- break;
-
- case P_MSGI: /* MESSAGE IN phase */
- {
- int start_sync=0;
-
-#if defined(DEBUG_INTR) || defined(DEBUG_MSGI) || defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & (debug_intr|debug_msgi|debug_phases))
- printk("MESSAGE IN, ");
-#endif
- SETPORT(SXFRCTL0, CH1);
-
- SETPORT(SIMODE0, 0);
- SETPORT(SIMODE1, ENBUSFREE);
-
- while(phase == P_MSGI) {
- CURRENT_SC->SCp.Message = GETPORT(SCSIDAT);
- switch(CURRENT_SC->SCp.Message) {
- case DISCONNECT:
-#if defined(DEBUG_MSGI) || defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & (debug_msgi|debug_phases))
- printk("target disconnected, ");
-#endif
- CURRENT_SC->SCp.Message = 0;
- CURRENT_SC->SCp.phase |= disconnected;
- if(!HOSTDATA(shpnt)->reconnect)
- aha152x_panic(shpnt, "target was not allowed to disconnect");
-
- break;
-
- case COMMAND_COMPLETE:
-#if defined(DEBUG_MSGI) || defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & (debug_msgi|debug_phases))
- printk("inbound message (COMMAND COMPLETE), ");
-#endif
- done++;
- break;
-
- case MESSAGE_REJECT:
- if(CURRENT_SC->SCp.phase & in_sync) {
- CURRENT_SC->SCp.phase &= ~in_sync;
- SYNCRATE=0x80;
- printk("synchronous rejected, ");
- } else
- printk("inbound message (MESSAGE REJECT), ");
-#if defined(DEBUG_MSGI)
- if(HOSTDATA(shpnt)->debug & debug_msgi)
- printk("inbound message (MESSAGE REJECT), ");
-#endif
- break;
-
- case SAVE_POINTERS:
-#if defined(DEBUG_MSGI)
- if(HOSTDATA(shpnt)->debug & debug_msgi)
- printk("inbound message (SAVE DATA POINTERS), ");
-#endif
- break;
-
- case RESTORE_POINTERS:
-#if defined(DEBUG_MSGI)
- if(HOSTDATA(shpnt)->debug & debug_msgi)
- printk("inbound message (RESTORE DATA POINTERS), ");
-#endif
- break;
-
- case EXTENDED_MESSAGE:
- {
- char buffer[16];
- int i;
-
-#if defined(DEBUG_MSGI)
- if(HOSTDATA(shpnt)->debug & debug_msgi)
- printk("inbound message (EXTENDED MESSAGE), ");
-#endif
- make_acklow(shpnt);
- if(getphase(shpnt)!=P_MSGI)
- break;
-
- buffer[0]=EXTENDED_MESSAGE;
- buffer[1]=GETPORT(SCSIDAT);
-
- for(i=0; i<buffer[1] &&
- (make_acklow(shpnt), getphase(shpnt)==P_MSGI); i++)
- buffer[2+i]=GETPORT(SCSIDAT);
-
-#if defined(DEBUG_MSGI)
- if(HOSTDATA(shpnt)->debug & debug_msgi)
- print_msg(buffer);
-#endif
-
- switch(buffer [2]) {
- case EXTENDED_SDTR:
- {
- long ticks;
-
- if(buffer[1]!=3)
- aha152x_panic(shpnt, "SDTR message length != 3");
-
- if(!HOSTDATA(shpnt)->synchronous)
- break;
-
- printk("inbound SDTR: "); print_msg(buffer);
-
- ticks=(buffer[3]*4+49)/50;
-
- if(CURRENT_SC->SCp.phase & in_sync) {
- /* we initiated SDTR */
- if(ticks>9 || buffer[4]<1 || buffer[4]>8)
- aha152x_panic(shpnt, "received SDTR invalid");
-
- SYNCRATE |= ((ticks-2)<<4) + buffer[4];
- } else if(ticks<=9 && buffer[4]>=1) {
- if(buffer[4]>8)
- buffer[4]=8;
-
- ADDMSG(EXTENDED_MESSAGE);
- ADDMSG(3);
- ADDMSG(EXTENDED_SDTR);
- if(ticks<4) {
- ticks=4;
- ADDMSG(50);
- } else
- ADDMSG(buffer[3]);
-
- ADDMSG(buffer[4]);
-
- printk("outbound SDTR: ");
- print_msg(&MSG(MSGLEN-5));
-
- CURRENT_SC->SCp.phase |= in_sync;
-
- SYNCRATE |= ((ticks-2)<<4) + buffer[4];
-
- start_sync++;
- } else {
- /* requested SDTR is too slow, do it asynchronously */
- ADDMSG(MESSAGE_REJECT);
- SYNCRATE = 0;
- }
-
- SETPORT(SCSIRATE, SYNCRATE&0x7f);
- }
- break;
-
- case EXTENDED_MODIFY_DATA_POINTER:
- case EXTENDED_EXTENDED_IDENTIFY:
- case EXTENDED_WDTR:
- default:
- ADDMSG(MESSAGE_REJECT);
- break;
- }
- }
- break;
-
- default:
- printk("unsupported inbound message %x, ", CURRENT_SC->SCp.Message);
- break;
-
- }
-
- make_acklow(shpnt);
- phase=getphase(shpnt);
- }
-
- if(start_sync)
- CURRENT_SC->SCp.phase |= in_sync;
- else
- CURRENT_SC->SCp.phase &= ~in_sync;
-
- if(MSGLEN>0)
- SETPORT(SCSISIG, P_MSGI|ATNO);
-
- /* clear SCSI fifo on BUSFREE */
- if(phase==P_BUSFREE)
- SETPORT(SXFRCTL0, CH1|CLRCH1);
-
- if(CURRENT_SC->SCp.phase & disconnected) {
- save_flags(flags);
- cli();
-#if defined(DEBUG_QUEUES)
- if(HOSTDATA(shpnt)->debug & debug_queues)
- printk("d+, ");
-#endif
- append_SC(&DISCONNECTED_SC, CURRENT_SC);
- CURRENT_SC->SCp.phase |= 1<<16;
- CURRENT_SC = NULL;
- restore_flags(flags);
-
- SETBITS(SCSISEQ, ENRESELI);
-
- SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
- SETPORT(SIMODE1, ISSUE_SC ? ENBUSFREE : 0);
-
- SETBITS(DMACNTRL0, INTEN);
-
- return;
- }
- }
- break;
-
- case P_STATUS: /* STATUS IN phase */
-#if defined(DEBUG_STATUS) || defined(DEBUG_INTR) || defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & (debug_status|debug_intr|debug_phases))
- printk("STATUS, ");
-#endif
- SETPORT(SXFRCTL0, CH1);
-
- SETPORT(SIMODE0, 0);
- SETPORT(SIMODE1, ENREQINIT|ENBUSFREE);
-
- if(TESTHI(SSTAT1, PHASEMIS))
- printk("aha152x: passing STATUS phase");
-
- CURRENT_SC->SCp.Status = GETPORT(SCSIBUS);
- make_acklow(shpnt);
- getphase(shpnt);
-
-#if defined(DEBUG_STATUS)
- if(HOSTDATA(shpnt)->debug & debug_status) {
- printk("inbound status ");
- print_status(CURRENT_SC->SCp.Status);
- printk(", ");
- }
-#endif
- break;
-
- case P_DATAI: /* DATA IN phase */
- {
- int fifodata, data_count, done;
-
-#if defined(DEBUG_DATAI) || defined(DEBUG_INTR) || defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & (debug_datai|debug_intr|debug_phases))
- printk("DATA IN, ");
-#endif
-
-#if 0
- if(GETPORT(FIFOSTAT) || GETPORT(SSTAT2) & (SFULL|SFCNT))
- printk("aha152x: P_DATAI: %d(%d) bytes left in FIFO, resetting\n",
- GETPORT(FIFOSTAT), GETPORT(SSTAT2) & (SFULL|SFCNT));
-#endif
-
- /* reset host fifo */
- SETPORT(DMACNTRL0, RSTFIFO);
- SETPORT(DMACNTRL0, RSTFIFO|ENDMA);
-
- SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN);
-
- SETPORT(SIMODE0, 0);
- SETPORT(SIMODE1, ENPHASEMIS|ENBUSFREE);
-
- /* done is set when the FIFO is empty after the target left DATA IN */
- done=0;
-
- /* while the target stays in DATA to transfer data */
- while (!done) {
-#if defined(DEBUG_DATAI)
- if(HOSTDATA(shpnt)->debug & debug_datai)
- printk("expecting data, ");
-#endif
- /* wait for PHASEMIS or full FIFO */
- while(TESTLO(DMASTAT, DFIFOFULL|INTSTAT))
- barrier();
-
-#if defined(DEBUG_DATAI)
- if(HOSTDATA(shpnt)->debug & debug_datai)
- printk("ok, ");
-#endif
-
- if(TESTHI(DMASTAT, DFIFOFULL))
- fifodata=GETPORT(FIFOSTAT);
- else {
- /* wait for SCSI fifo to get empty */
- while(TESTLO(SSTAT2, SEMPTY))
- barrier();
-
- /* rest of data in FIFO */
- fifodata=GETPORT(FIFOSTAT);
-#if defined(DEBUG_DATAI)
- if(HOSTDATA(shpnt)->debug & debug_datai)
- printk("last transfer, ");
-#endif
- done=1;
- }
-
-#if defined(DEBUG_DATAI)
- if(HOSTDATA(shpnt)->debug & debug_datai)
- printk("fifodata=%d, ", fifodata);
-#endif
-
- while(fifodata && CURRENT_SC->SCp.this_residual) {
- data_count=fifodata;
-
- /* limit data transfer to size of first sg buffer */
- if(data_count > CURRENT_SC->SCp.this_residual)
- data_count = CURRENT_SC->SCp.this_residual;
-
- fifodata -= data_count;
-
-#if defined(DEBUG_DATAI)
- if(HOSTDATA(shpnt)->debug & debug_datai)
- printk("data_count=%d, ", data_count);
-#endif
-
- if(data_count&1) {
- /* get a single byte in byte mode */
- SETBITS(DMACNTRL0, _8BIT);
- *CURRENT_SC->SCp.ptr++ = GETPORT(DATAPORT);
- CURRENT_SC->SCp.this_residual--;
- }
-
- if(data_count>1) {
- CLRBITS(DMACNTRL0, _8BIT);
- data_count >>= 1; /* Number of words */
- insw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
-#if defined(DEBUG_DATAI)
- if(HOSTDATA(shpnt)->debug & debug_datai)
- /* show what comes with the last transfer */
- if(done) {
-#if 0
- int i;
- unsigned char *data;
-#endif
-
- printk("data on last transfer (%d bytes) ",
- 2*data_count);
-#if 0
- printk("data on last transfer (%d bytes: ",
- 2*data_count);
- data = (unsigned char *) CURRENT_SC->SCp.ptr;
- for(i=0; i<2*data_count; i++)
- printk("%2x ", *data++);
- printk("), ");
-#endif
- }
-#endif
- CURRENT_SC->SCp.ptr += 2 * data_count;
- CURRENT_SC->SCp.this_residual -= 2 * data_count;
- }
-
- /* if this buffer is full and there are more buffers left */
- if(!CURRENT_SC->SCp.this_residual &&
- CURRENT_SC->SCp.buffers_residual) {
- /* advance to next buffer */
- CURRENT_SC->SCp.buffers_residual--;
- CURRENT_SC->SCp.buffer++;
- CURRENT_SC->SCp.ptr = CURRENT_SC->SCp.buffer->address;
- CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
- }
- }
-
- /*
- * FIFO should be empty
- */
- if(fifodata>0) {
- printk("aha152x: more data than expected (%d bytes)\n",
- GETPORT(FIFOSTAT));
- SETBITS(DMACNTRL0, _8BIT);
- printk("aha152x: data (");
- while(fifodata--)
- printk("%2x ", GETPORT(DATAPORT));
- printk(")\n");
- }
-
-#if defined(DEBUG_DATAI)
- if(HOSTDATA(shpnt)->debug & debug_datai)
- if(!fifodata)
- printk("fifo empty, ");
- else
- printk("something left in fifo, ");
-#endif
- }
-
-#if defined(DEBUG_DATAI)
- if((HOSTDATA(shpnt)->debug & debug_datai) &&
- (CURRENT_SC->SCp.buffers_residual ||
- CURRENT_SC->SCp.this_residual))
- printk("left buffers (buffers=%d, bytes=%d), ",
- CURRENT_SC->SCp.buffers_residual, CURRENT_SC->SCp.this_residual);
-#endif
- /* transfer can be considered ended, when SCSIEN reads back zero */
- CLRBITS(SXFRCTL0, SCSIEN|DMAEN);
- while(TESTHI(SXFRCTL0, SCSIEN))
- barrier();
- CLRBITS(DMACNTRL0, ENDMA);
-
-#if defined(DEBUG_DATAI) || defined(DEBUG_INTR)
- if(HOSTDATA(shpnt)->debug & (debug_datai|debug_intr))
- printk("got %d bytes, ", GETSTCNT());
-#endif
-
- CURRENT_SC->SCp.have_data_in++;
- }
- break;
-
- case P_DATAO: /* DATA OUT phase */
- {
- int data_count;
-
-#if defined(DEBUG_DATAO) || defined(DEBUG_INTR) || defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & (debug_datao|debug_intr|debug_phases))
- printk("DATA OUT, ");
-#endif
-#if defined(DEBUG_DATAO)
- if(HOSTDATA(shpnt)->debug & debug_datao)
- printk("got data to send (bytes=%d, buffers=%d), ",
- CURRENT_SC->SCp.this_residual,
- CURRENT_SC->SCp.buffers_residual);
-#endif
-
- if(GETPORT(FIFOSTAT) || GETPORT(SSTAT2) & (SFULL|SFCNT)) {
- printk("%d(%d) left in FIFO, ",
- GETPORT(FIFOSTAT), GETPORT(SSTAT2) & (SFULL|SFCNT));
- aha152x_panic(shpnt, "FIFO should be empty");
- }
-
- SETPORT(SXFRCTL0, CH1|CLRSTCNT|CLRCH1);
- SETPORT(SXFRCTL0, SCSIEN|DMAEN|CH1);
-
- SETPORT(DMACNTRL0, WRITE_READ|RSTFIFO);
- SETPORT(DMACNTRL0, ENDMA|WRITE_READ);
-
- SETPORT(SIMODE0, 0);
- SETPORT(SIMODE1, ENPHASEMIS|ENBUSFREE);
-
- /* while current buffer is not empty or
- there are more buffers to transfer */
- while(TESTLO(SSTAT1, PHASEMIS) &&
- (CURRENT_SC->SCp.this_residual ||
- CURRENT_SC->SCp.buffers_residual)) {
-#if defined(DEBUG_DATAO)
- if(HOSTDATA(shpnt)->debug & debug_datao)
- printk("sending data (left: bytes=%d, buffers=%d), waiting, ",
- CURRENT_SC->SCp.this_residual,
- CURRENT_SC->SCp.buffers_residual);
-#endif
- /* transfer rest of buffer, but max. 128 byte */
- data_count =
- CURRENT_SC->SCp.this_residual > 128 ?
- 128 : CURRENT_SC->SCp.this_residual ;
-
-#if defined(DEBUG_DATAO)
- if(HOSTDATA(shpnt)->debug & debug_datao)
- printk("data_count=%d, ", data_count);
-#endif
-
- if(data_count&1) {
- /* put a single byte in byte mode */
- SETBITS(DMACNTRL0, _8BIT);
- SETPORT(DATAPORT, *CURRENT_SC->SCp.ptr++);
- CURRENT_SC->SCp.this_residual--;
- }
- if(data_count>1) {
- CLRBITS(DMACNTRL0, _8BIT);
- data_count >>= 1; /* number of words */
- outsw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
- CURRENT_SC->SCp.ptr += 2 * data_count;
- CURRENT_SC->SCp.this_residual -= 2 * data_count;
- }
-
- /* wait for FIFO to get empty */
- while(TESTLO(DMASTAT, DFIFOEMP|INTSTAT))
- barrier();
-
-#if defined(DEBUG_DATAO)
- if(HOSTDATA(shpnt)->debug & debug_datao)
- printk("fifo (%d bytes), transfered (%d bytes), ",
- GETPORT(FIFOSTAT), GETSTCNT());
-#endif
-
- /* if this buffer is empty and there are more buffers left */
- if(TESTLO(SSTAT1, PHASEMIS) &&
- !CURRENT_SC->SCp.this_residual &&
- CURRENT_SC->SCp.buffers_residual) {
- /* advance to next buffer */
- CURRENT_SC->SCp.buffers_residual--;
- CURRENT_SC->SCp.buffer++;
- CURRENT_SC->SCp.ptr = CURRENT_SC->SCp.buffer->address;
- CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
- }
- }
-
- if(CURRENT_SC->SCp.this_residual || CURRENT_SC->SCp.buffers_residual) {
- /* target leaves DATA OUT for an other phase (perhaps disconnect) */
-
- /* data in fifos has to be resend */
- data_count = GETPORT(SSTAT2) & (SFULL|SFCNT);
-
- data_count += GETPORT(FIFOSTAT) ;
- CURRENT_SC->SCp.ptr -= data_count;
- CURRENT_SC->SCp.this_residual += data_count;
-#if defined(DEBUG_DATAO)
- if(HOSTDATA(shpnt)->debug & debug_datao)
- printk("left data (bytes=%d, buffers=%d), fifos (bytes=%d), "
- "transfer incomplete, resetting fifo, ",
- CURRENT_SC->SCp.this_residual,
- CURRENT_SC->SCp.buffers_residual,
- data_count);
-#endif
- SETPORT(DMACNTRL0, WRITE_READ|RSTFIFO);
- CLRBITS(SXFRCTL0, SCSIEN|DMAEN);
- CLRBITS(DMACNTRL0, ENDMA);
- } else {
-#if defined(DEBUG_DATAO)
- if(HOSTDATA(shpnt)->debug & debug_datao)
- printk("waiting for SCSI fifo to get empty, ");
-#endif
- /* wait for SCSI fifo to get empty */
- while(TESTLO(SSTAT2, SEMPTY))
- barrier();
-#if defined(DEBUG_DATAO)
- if(HOSTDATA(shpnt)->debug & debug_datao)
- printk("ok, left data (bytes=%d, buffers=%d) ",
- CURRENT_SC->SCp.this_residual,
- CURRENT_SC->SCp.buffers_residual);
-#endif
- CLRBITS(SXFRCTL0, SCSIEN|DMAEN);
-
- /* transfer can be considered ended, when SCSIEN reads back zero */
- while(TESTHI(SXFRCTL0, SCSIEN))
- barrier();
-
- CLRBITS(DMACNTRL0, ENDMA);
- }
-
-#if defined(DEBUG_DATAO) || defined(DEBUG_INTR)
- if(HOSTDATA(shpnt)->debug & (debug_datao|debug_intr))
- printk("sent %d data bytes, ", GETSTCNT());
-#endif
- }
- break;
-
- case P_BUSFREE: /* BUSFREE */
-#if defined(DEBUG_RACE)
- leave_driver("(BUSFREE) intr");
-#endif
-#if defined(DEBUG_PHASES)
- if(HOSTDATA(shpnt)->debug & debug_phases)
- printk("unexpected BUS FREE, ");
-#endif
- CURRENT_SC->SCp.phase &= ~(P_MASK<<16);
-
- aha152x_done(shpnt, DID_ERROR << 16); /* Don't know any better */
- return;
- break;
-
- case P_PARITY: /* parity error in DATA phase */
-#if defined(DEBUG_RACE)
- leave_driver("(DID_PARITY) intr");
-#endif
- printk("PARITY error in DATA phase, ");
-
- CURRENT_SC->SCp.phase &= ~(P_MASK<<16);
-
- SETBITS(DMACNTRL0, INTEN);
- aha152x_done(shpnt, DID_PARITY << 16);
- return;
- break;
-
- default:
- printk("aha152x: unexpected phase\n");
- break;
- }
-
- if(done) {
-#if defined(DEBUG_INTR)
- if(HOSTDATA(shpnt)->debug & debug_intr)
- printk("command done.\n");
-#endif
-#if defined(DEBUG_RACE)
- leave_driver("(done) intr");
-#endif
-
- SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
- SETPORT(SIMODE1, ISSUE_SC ? ENBUSFREE : 0);
- SETPORT(SCSISEQ, DISCONNECTED_SC ? ENRESELI : 0);
-
- SETBITS(DMACNTRL0, INTEN);
-
- aha152x_done(shpnt,
- (CURRENT_SC->SCp.Status & 0xff)
- | ((CURRENT_SC->SCp.Message & 0xff) << 8)
- | (DID_OK << 16));
-
-#if defined(DEBUG_RACE)
- printk("done returned (DID_OK: Status=%x; Message=%x).\n",
- CURRENT_SC->SCp.Status, CURRENT_SC->SCp.Message);
-#endif
- return;
- }
-
- if(CURRENT_SC)
- CURRENT_SC->SCp.phase |= 1<<16;
-
- SETPORT(SIMODE0, 0);
- SETPORT(SIMODE1, ENPHASEMIS|ENBUSFREE);
-#if defined(DEBUG_INTR)
- if(HOSTDATA(shpnt)->debug & debug_intr)
- disp_enintr(shpnt);
-#endif
-#if defined(DEBUG_RACE)
- leave_driver("(PHASEEND) intr");
-#endif
-
- SETBITS(DMACNTRL0, INTEN);
- return;
-}
-
-/*
- * Dump the current driver status and panic...
- */
-static void aha152x_panic(struct Scsi_Host *shpnt, char *msg)
-{
- printk("\naha152x: %s\n", msg);
- show_queues(shpnt);
- panic("aha152x panic");
-}
-
-/*
- * Display registers of AIC-6260
- */
-static void disp_ports(struct Scsi_Host *shpnt)
-{
-#ifdef DEBUG_AHA152X
- int s;
-
-#ifdef SKIP_PORTS
- if(HOSTDATA(shpnt)->debug & debug_skipports)
- return;
-#endif
-
- printk("\n%s: ", CURRENT_SC ? "on bus" : "waiting");
-
- s=GETPORT(SCSISEQ);
- printk("SCSISEQ (");
- if(s & TEMODEO) printk("TARGET MODE ");
- if(s & ENSELO) printk("SELO ");
- if(s & ENSELI) printk("SELI ");
- if(s & ENRESELI) printk("RESELI ");
- if(s & ENAUTOATNO) printk("AUTOATNO ");
- if(s & ENAUTOATNI) printk("AUTOATNI ");
- if(s & ENAUTOATNP) printk("AUTOATNP ");
- if(s & SCSIRSTO) printk("SCSIRSTO ");
- printk(");");
-
- printk(" SCSISIG (");
- s=GETPORT(SCSISIG);
- switch(s & P_MASK) {
- case P_DATAO:
- printk("DATA OUT");
- break;
- case P_DATAI:
- printk("DATA IN");
- break;
- case P_CMD:
- printk("COMMAND");
- break;
- case P_STATUS:
- printk("STATUS");
- break;
- case P_MSGO:
- printk("MESSAGE OUT");
- break;
- case P_MSGI:
- printk("MESSAGE IN");
- break;
- default:
- printk("*illegal*");
- break;
- }
-
- printk("); ");
-
- printk("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo");
-
- printk("SSTAT (");
- s=GETPORT(SSTAT0);
- if(s & TARGET) printk("TARGET ");
- if(s & SELDO) printk("SELDO ");
- if(s & SELDI) printk("SELDI ");
- if(s & SELINGO) printk("SELINGO ");
- if(s & SWRAP) printk("SWRAP ");
- if(s & SDONE) printk("SDONE ");
- if(s & SPIORDY) printk("SPIORDY ");
- if(s & DMADONE) printk("DMADONE ");
-
- s=GETPORT(SSTAT1);
- if(s & SELTO) printk("SELTO ");
- if(s & ATNTARG) printk("ATNTARG ");
- if(s & SCSIRSTI) printk("SCSIRSTI ");
- if(s & PHASEMIS) printk("PHASEMIS ");
- if(s & BUSFREE) printk("BUSFREE ");
- if(s & SCSIPERR) printk("SCSIPERR ");
- if(s & PHASECHG) printk("PHASECHG ");
- if(s & REQINIT) printk("REQINIT ");
- printk("); ");
-
-
- printk("SSTAT (");
-
- s=GETPORT(SSTAT0) & GETPORT(SIMODE0);
-
- if(s & TARGET) printk("TARGET ");
- if(s & SELDO) printk("SELDO ");
- if(s & SELDI) printk("SELDI ");
- if(s & SELINGO) printk("SELINGO ");
- if(s & SWRAP) printk("SWRAP ");
- if(s & SDONE) printk("SDONE ");
- if(s & SPIORDY) printk("SPIORDY ");
- if(s & DMADONE) printk("DMADONE ");
-
- s=GETPORT(SSTAT1) & GETPORT(SIMODE1);
-
- if(s & SELTO) printk("SELTO ");
- if(s & ATNTARG) printk("ATNTARG ");
- if(s & SCSIRSTI) printk("SCSIRSTI ");
- if(s & PHASEMIS) printk("PHASEMIS ");
- if(s & BUSFREE) printk("BUSFREE ");
- if(s & SCSIPERR) printk("SCSIPERR ");
- if(s & PHASECHG) printk("PHASECHG ");
- if(s & REQINIT) printk("REQINIT ");
- printk("); ");
-
- printk("SXFRCTL0 (");
-
- s=GETPORT(SXFRCTL0);
- if(s & SCSIEN) printk("SCSIEN ");
- if(s & DMAEN) printk("DMAEN ");
- if(s & CH1) printk("CH1 ");
- if(s & CLRSTCNT) printk("CLRSTCNT ");
- if(s & SPIOEN) printk("SPIOEN ");
- if(s & CLRCH1) printk("CLRCH1 ");
- printk("); ");
-
- printk("SIGNAL (");
-
- s=GETPORT(SCSISIG);
- if(s & ATNI) printk("ATNI ");
- if(s & SELI) printk("SELI ");
- if(s & BSYI) printk("BSYI ");
- if(s & REQI) printk("REQI ");
- if(s & ACKI) printk("ACKI ");
- printk("); ");
-
- printk("SELID (%02x), ", GETPORT(SELID));
-
- printk("SSTAT2 (");
-
- s=GETPORT(SSTAT2);
- if(s & SOFFSET) printk("SOFFSET ");
- if(s & SEMPTY) printk("SEMPTY ");
- if(s & SFULL) printk("SFULL ");
- printk("); SFCNT (%d); ", s & (SFULL|SFCNT));
-
- s=GETPORT(SSTAT3);
- printk("SCSICNT (%d), OFFCNT(%d), ", (s&0xf0)>>4, s&0x0f);
-
- printk("SSTAT4 (");
- s=GETPORT(SSTAT4);
- if(s & SYNCERR) printk("SYNCERR ");
- if(s & FWERR) printk("FWERR ");
- if(s & FRERR) printk("FRERR ");
- printk("); ");
-
- printk("DMACNTRL0 (");
- s=GETPORT(DMACNTRL0);
- printk("%s ", s & _8BIT ? "8BIT" : "16BIT");
- printk("%s ", s & DMA ? "DMA" : "PIO" );
- printk("%s ", s & WRITE_READ ? "WRITE" : "READ" );
- if(s & ENDMA) printk("ENDMA ");
- if(s & INTEN) printk("INTEN ");
- if(s & RSTFIFO) printk("RSTFIFO ");
- if(s & SWINT) printk("SWINT ");
- printk("); ");
-
- printk("DMASTAT (");
- s=GETPORT(DMASTAT);
- if(s & ATDONE) printk("ATDONE ");
- if(s & WORDRDY) printk("WORDRDY ");
- if(s & DFIFOFULL) printk("DFIFOFULL ");
- if(s & DFIFOEMP) printk("DFIFOEMP ");
- printk(")");
-
- printk("\n");
-#endif
-}
-
-/*
- * display enabled interrupts
- */
-static void disp_enintr(struct Scsi_Host *shpnt)
-{
- int s;
-
- printk("enabled interrupts (");
-
- s=GETPORT(SIMODE0);
- if(s & ENSELDO) printk("ENSELDO ");
- if(s & ENSELDI) printk("ENSELDI ");
- if(s & ENSELINGO) printk("ENSELINGO ");
- if(s & ENSWRAP) printk("ENSWRAP ");
- if(s & ENSDONE) printk("ENSDONE ");
- if(s & ENSPIORDY) printk("ENSPIORDY ");
- if(s & ENDMADONE) printk("ENDMADONE ");
-
- s=GETPORT(SIMODE1);
- if(s & ENSELTIMO) printk("ENSELTIMO ");
- if(s & ENATNTARG) printk("ENATNTARG ");
- if(s & ENPHASEMIS) printk("ENPHASEMIS ");
- if(s & ENBUSFREE) printk("ENBUSFREE ");
- if(s & ENSCSIPERR) printk("ENSCSIPERR ");
- if(s & ENPHASECHG) printk("ENPHASECHG ");
- if(s & ENREQINIT) printk("ENREQINIT ");
- printk(")\n");
-}
-
-#if defined(DEBUG_RACE)
-
-static const char *should_leave;
-static int in_driver=0;
-
-/*
- * Only one routine can be in the driver at once.
- */
-static void enter_driver(const char *func)
-{
- unsigned long flags;
-
- save_flags(flags);
- cli();
- printk("aha152x: entering %s() (%x)\n", func, jiffies);
- if(in_driver) {
- printk("%s should leave first.\n", should_leave);
- panic("aha152x: already in driver\n");
- }
-
- in_driver++;
- should_leave=func;
- restore_flags(flags);
-}
-
-static void leave_driver(const char *func)
-{
- unsigned long flags;
-
- save_flags(flags);
- cli();
- printk("\naha152x: leaving %s() (%x)\n", func, jiffies);
- if(!in_driver) {
- printk("aha152x: %s already left.\n", should_leave);
- panic("aha152x: %s already left driver.\n");
- }
-
- in_driver--;
- should_leave=func;
- restore_flags(flags);
-}
-#endif
-
-/*
- * Show the command data of a command
- */
-static void show_command(Scsi_Cmnd *ptr)
-{
- printk("0x%08x: target=%d; lun=%d; cmnd=(",
- (unsigned int) ptr, ptr->target, ptr->lun);
-
- print_command(ptr->cmnd);
-
- printk("); residual=%d; buffers=%d; phase |",
- ptr->SCp.this_residual, ptr->SCp.buffers_residual);
-
- if(ptr->SCp.phase & not_issued ) printk("not issued|");
- if(ptr->SCp.phase & in_selection) printk("in selection|");
- if(ptr->SCp.phase & disconnected) printk("disconnected|");
- if(ptr->SCp.phase & aborted ) printk("aborted|");
- if(ptr->SCp.phase & sent_ident ) printk("send_ident|");
- if(ptr->SCp.phase & in_other) {
- printk("; in other(");
- switch((ptr->SCp.phase >> 16) & P_MASK) {
- case P_DATAO:
- printk("DATA OUT");
- break;
- case P_DATAI:
- printk("DATA IN");
- break;
- case P_CMD:
- printk("COMMAND");
- break;
- case P_STATUS:
- printk("STATUS");
- break;
- case P_MSGO:
- printk("MESSAGE OUT");
- break;
- case P_MSGI:
- printk("MESSAGE IN");
- break;
- default:
- printk("*illegal*");
- break;
- }
- printk(")");
- if(ptr->SCp.phase & (1<<16))
- printk("; phaseend");
- }
- printk("; next=0x%08x\n", (unsigned int) ptr->host_scribble);
-}
-
-/*
- * Dump the queued data
- */
-static void show_queues(struct Scsi_Host *shpnt)
-{
- unsigned long flags;
- Scsi_Cmnd *ptr;
-
- save_flags(flags);
- cli();
- printk("QUEUE STATUS:\nissue_SC:\n");
- for(ptr=ISSUE_SC; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
- show_command(ptr);
-
- printk("current_SC:\n");
- if(CURRENT_SC)
- show_command(CURRENT_SC);
- else
- printk("none\n");
-
- printk("disconnected_SC:\n");
- for(ptr=DISCONNECTED_SC; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
- show_command(ptr);
-
- disp_ports(shpnt);
- disp_enintr(shpnt);
- restore_flags(flags);
-}
-
-int aha152x_set_info(char *buffer, int length, struct Scsi_Host *shpnt)
-{
- return(-ENOSYS); /* Currently this is a no-op */
-}
-
-#undef SPRINTF
-#define SPRINTF(args...) pos += sprintf(pos, ## args)
-
-static int get_command(char *pos, Scsi_Cmnd *ptr)
-{
- char *start = pos;
- int i;
-
- SPRINTF("0x%08x: target=%d; lun=%d; cmnd=( ",
- (unsigned int) ptr, ptr->target, ptr->lun);
-
- for(i=0; i<COMMAND_SIZE(ptr->cmnd[0]); i++)
- SPRINTF("0x%02x ", ptr->cmnd[i]);
-
- SPRINTF("); residual=%d; buffers=%d; phase |",
- ptr->SCp.this_residual, ptr->SCp.buffers_residual);
-
- if(ptr->SCp.phase & not_issued ) SPRINTF("not issued|");
- if(ptr->SCp.phase & in_selection) SPRINTF("in selection|");
- if(ptr->SCp.phase & disconnected) SPRINTF("disconnected|");
- if(ptr->SCp.phase & aborted ) SPRINTF("aborted|");
- if(ptr->SCp.phase & sent_ident ) SPRINTF("send_ident|");
- if(ptr->SCp.phase & in_other) {
- SPRINTF("; in other(");
- switch((ptr->SCp.phase >> 16) & P_MASK) {
- case P_DATAO:
- SPRINTF("DATA OUT");
- break;
- case P_DATAI:
- SPRINTF("DATA IN");
- break;
- case P_CMD:
- SPRINTF("COMMAND");
- break;
- case P_STATUS:
- SPRINTF("STATUS");
- break;
- case P_MSGO:
- SPRINTF("MESSAGE OUT");
- break;
- case P_MSGI:
- SPRINTF("MESSAGE IN");
- break;
- default:
- SPRINTF("*illegal*");
- break;
- }
- SPRINTF(")");
- if(ptr->SCp.phase & (1<<16))
- SPRINTF("; phaseend");
- }
- SPRINTF("; next=0x%08x\n", (unsigned int) ptr->host_scribble);
-
- return(pos-start);
-}
-
-static int get_ports(struct Scsi_Host *shpnt, char *pos)
-{
- char *start = pos;
- int s;
-
-#ifdef SKIP_PORTS
- if(HOSTDATA(shpnt)->debug & debug_skipports)
- return;
-#endif
-
- SPRINTF("\n%s: ", CURRENT_SC ? "on bus" : "waiting");
-
- s=GETPORT(SCSISEQ);
- SPRINTF("SCSISEQ (");
- if(s & TEMODEO) SPRINTF("TARGET MODE ");
- if(s & ENSELO) SPRINTF("SELO ");
- if(s & ENSELI) SPRINTF("SELI ");
- if(s & ENRESELI) SPRINTF("RESELI ");
- if(s & ENAUTOATNO) SPRINTF("AUTOATNO ");
- if(s & ENAUTOATNI) SPRINTF("AUTOATNI ");
- if(s & ENAUTOATNP) SPRINTF("AUTOATNP ");
- if(s & SCSIRSTO) SPRINTF("SCSIRSTO ");
- SPRINTF(");");
-
- SPRINTF(" SCSISIG (");
- s=GETPORT(SCSISIG);
- switch(s & P_MASK) {
- case P_DATAO:
- SPRINTF("DATA OUT");
- break;
- case P_DATAI:
- SPRINTF("DATA IN");
- break;
- case P_CMD:
- SPRINTF("COMMAND");
- break;
- case P_STATUS:
- SPRINTF("STATUS");
- break;
- case P_MSGO:
- SPRINTF("MESSAGE OUT");
- break;
- case P_MSGI:
- SPRINTF("MESSAGE IN");
- break;
- default:
- SPRINTF("*illegal*");
- break;
- }
-
- SPRINTF("); ");
-
- SPRINTF("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo");
-
- SPRINTF("SSTAT (");
- s=GETPORT(SSTAT0);
- if(s & TARGET) SPRINTF("TARGET ");
- if(s & SELDO) SPRINTF("SELDO ");
- if(s & SELDI) SPRINTF("SELDI ");
- if(s & SELINGO) SPRINTF("SELINGO ");
- if(s & SWRAP) SPRINTF("SWRAP ");
- if(s & SDONE) SPRINTF("SDONE ");
- if(s & SPIORDY) SPRINTF("SPIORDY ");
- if(s & DMADONE) SPRINTF("DMADONE ");
-
- s=GETPORT(SSTAT1);
- if(s & SELTO) SPRINTF("SELTO ");
- if(s & ATNTARG) SPRINTF("ATNTARG ");
- if(s & SCSIRSTI) SPRINTF("SCSIRSTI ");
- if(s & PHASEMIS) SPRINTF("PHASEMIS ");
- if(s & BUSFREE) SPRINTF("BUSFREE ");
- if(s & SCSIPERR) SPRINTF("SCSIPERR ");
- if(s & PHASECHG) SPRINTF("PHASECHG ");
- if(s & REQINIT) SPRINTF("REQINIT ");
- SPRINTF("); ");
-
-
- SPRINTF("SSTAT (");
-
- s=GETPORT(SSTAT0) & GETPORT(SIMODE0);
-
- if(s & TARGET) SPRINTF("TARGET ");
- if(s & SELDO) SPRINTF("SELDO ");
- if(s & SELDI) SPRINTF("SELDI ");
- if(s & SELINGO) SPRINTF("SELINGO ");
- if(s & SWRAP) SPRINTF("SWRAP ");
- if(s & SDONE) SPRINTF("SDONE ");
- if(s & SPIORDY) SPRINTF("SPIORDY ");
- if(s & DMADONE) SPRINTF("DMADONE ");
-
- s=GETPORT(SSTAT1) & GETPORT(SIMODE1);
-
- if(s & SELTO) SPRINTF("SELTO ");
- if(s & ATNTARG) SPRINTF("ATNTARG ");
- if(s & SCSIRSTI) SPRINTF("SCSIRSTI ");
- if(s & PHASEMIS) SPRINTF("PHASEMIS ");
- if(s & BUSFREE) SPRINTF("BUSFREE ");
- if(s & SCSIPERR) SPRINTF("SCSIPERR ");
- if(s & PHASECHG) SPRINTF("PHASECHG ");
- if(s & REQINIT) SPRINTF("REQINIT ");
- SPRINTF("); ");
-
- SPRINTF("SXFRCTL0 (");
-
- s=GETPORT(SXFRCTL0);
- if(s & SCSIEN) SPRINTF("SCSIEN ");
- if(s & DMAEN) SPRINTF("DMAEN ");
- if(s & CH1) SPRINTF("CH1 ");
- if(s & CLRSTCNT) SPRINTF("CLRSTCNT ");
- if(s & SPIOEN) SPRINTF("SPIOEN ");
- if(s & CLRCH1) SPRINTF("CLRCH1 ");
- SPRINTF("); ");
-
- SPRINTF("SIGNAL (");
-
- s=GETPORT(SCSISIG);
- if(s & ATNI) SPRINTF("ATNI ");
- if(s & SELI) SPRINTF("SELI ");
- if(s & BSYI) SPRINTF("BSYI ");
- if(s & REQI) SPRINTF("REQI ");
- if(s & ACKI) SPRINTF("ACKI ");
- SPRINTF("); ");
-
- SPRINTF("SELID (%02x), ", GETPORT(SELID));
-
- SPRINTF("SSTAT2 (");
-
- s=GETPORT(SSTAT2);
- if(s & SOFFSET) SPRINTF("SOFFSET ");
- if(s & SEMPTY) SPRINTF("SEMPTY ");
- if(s & SFULL) SPRINTF("SFULL ");
- SPRINTF("); SFCNT (%d); ", s & (SFULL|SFCNT));
-
- s=GETPORT(SSTAT3);
- SPRINTF("SCSICNT (%d), OFFCNT(%d), ", (s&0xf0)>>4, s&0x0f);
-
- SPRINTF("SSTAT4 (");
- s=GETPORT(SSTAT4);
- if(s & SYNCERR) SPRINTF("SYNCERR ");
- if(s & FWERR) SPRINTF("FWERR ");
- if(s & FRERR) SPRINTF("FRERR ");
- SPRINTF("); ");
-
- SPRINTF("DMACNTRL0 (");
- s=GETPORT(DMACNTRL0);
- SPRINTF("%s ", s & _8BIT ? "8BIT" : "16BIT");
- SPRINTF("%s ", s & DMA ? "DMA" : "PIO" );
- SPRINTF("%s ", s & WRITE_READ ? "WRITE" : "READ" );
- if(s & ENDMA) SPRINTF("ENDMA ");
- if(s & INTEN) SPRINTF("INTEN ");
- if(s & RSTFIFO) SPRINTF("RSTFIFO ");
- if(s & SWINT) SPRINTF("SWINT ");
- SPRINTF("); ");
-
- SPRINTF("DMASTAT (");
- s=GETPORT(DMASTAT);
- if(s & ATDONE) SPRINTF("ATDONE ");
- if(s & WORDRDY) SPRINTF("WORDRDY ");
- if(s & DFIFOFULL) SPRINTF("DFIFOFULL ");
- if(s & DFIFOEMP) SPRINTF("DFIFOEMP ");
- SPRINTF(")\n\n");
-
- SPRINTF("enabled interrupts (");
-
- s=GETPORT(SIMODE0);
- if(s & ENSELDO) SPRINTF("ENSELDO ");
- if(s & ENSELDI) SPRINTF("ENSELDI ");
- if(s & ENSELINGO) SPRINTF("ENSELINGO ");
- if(s & ENSWRAP) SPRINTF("ENSWRAP ");
- if(s & ENSDONE) SPRINTF("ENSDONE ");
- if(s & ENSPIORDY) SPRINTF("ENSPIORDY ");
- if(s & ENDMADONE) SPRINTF("ENDMADONE ");
-
- s=GETPORT(SIMODE1);
- if(s & ENSELTIMO) SPRINTF("ENSELTIMO ");
- if(s & ENATNTARG) SPRINTF("ENATNTARG ");
- if(s & ENPHASEMIS) SPRINTF("ENPHASEMIS ");
- if(s & ENBUSFREE) SPRINTF("ENBUSFREE ");
- if(s & ENSCSIPERR) SPRINTF("ENSCSIPERR ");
- if(s & ENPHASECHG) SPRINTF("ENPHASECHG ");
- if(s & ENREQINIT) SPRINTF("ENREQINIT ");
- SPRINTF(")\n");
-
- return (pos-start);
-}
-
-#undef SPRINTF
-#define SPRINTF(args...) do { if(pos < buffer + length) pos += sprintf(pos, ## args); } while(0)
-
-int aha152x_proc_info(char *buffer, char **start,
- off_t offset, int length, int hostno, int inout)
-{
- int i;
- char *pos = buffer;
- struct Scsi_Host *shpnt;
- unsigned long flags;
- Scsi_Cmnd *ptr;
-
- for(i=0, shpnt= (struct Scsi_Host *) NULL; i<IRQS; i++)
- if(aha152x_host[i] && aha152x_host[i]->host_no == hostno)
- shpnt=aha152x_host[i];
-
- if(!shpnt)
- return(-ESRCH);
-
- if(inout) /* Has data been written to the file ? */
- return(aha152x_set_info(buffer, length, shpnt));
-
- SPRINTF(AHA152X_REVID "\n");
-
- save_flags(flags);
- cli();
-
- SPRINTF("ioports 0x%04x to 0x%04x\n",
- shpnt->io_port, shpnt->io_port+shpnt->n_io_port-1);
- SPRINTF("interrupt 0x%02x\n", shpnt->irq);
- SPRINTF("disconnection/reconnection %s\n",
- HOSTDATA(shpnt)->reconnect ? "enabled" : "disabled");
- SPRINTF("parity checking %s\n",
- HOSTDATA(shpnt)->parity ? "enabled" : "disabled");
- SPRINTF("synchronous transfers %s\n",
- HOSTDATA(shpnt)->synchronous ? "enabled" : "disabled");
- SPRINTF("%d commands currently queued\n", HOSTDATA(shpnt)->commands);
-
- if(HOSTDATA(shpnt)->synchronous) {
-#if 0
- SPRINTF("synchronously operating targets (tick=%ld ns):\n",
- 250000000/loops_per_sec);
- for(i=0; i<8; i++)
- if(HOSTDATA(shpnt)->syncrate[i]&0x7f)
- SPRINTF("target %d: period %dT/%ldns; req/ack offset %d\n",
- i,
- (((HOSTDATA(shpnt)->syncrate[i]&0x70)>>4)+2),
- (((HOSTDATA(shpnt)->syncrate[i]&0x70)>>4)+2)*
- 250000000/loops_per_sec,
- HOSTDATA(shpnt)->syncrate[i]&0x0f);
-#else
- SPRINTF("synchronously operating targets (tick=50 ns):\n");
- for(i=0; i<8; i++)
- if(HOSTDATA(shpnt)->syncrate[i]&0x7f)
- SPRINTF("target %d: period %dT/%dns; req/ack offset %d\n",
- i,
- (((HOSTDATA(shpnt)->syncrate[i]&0x70)>>4)+2),
- (((HOSTDATA(shpnt)->syncrate[i]&0x70)>>4)+2)*50,
- HOSTDATA(shpnt)->syncrate[i]&0x0f);
-#endif
- }
-
-#ifdef DEBUG_AHA152X
-#define PDEBUG(flags,txt) if(HOSTDATA(shpnt)->debug & flags) SPRINTF("(%s) ", txt);
-
- SPRINTF("enabled debugging options: ");
-
- PDEBUG(debug_skipports, "skip ports");
- PDEBUG(debug_queue, "queue");
- PDEBUG(debug_intr, "interrupt");
- PDEBUG(debug_selection, "selection");
- PDEBUG(debug_msgo, "message out");
- PDEBUG(debug_msgi, "message in");
- PDEBUG(debug_status, "status");
- PDEBUG(debug_cmd, "command");
- PDEBUG(debug_datai, "data in");
- PDEBUG(debug_datao, "data out");
- PDEBUG(debug_abort, "abort");
- PDEBUG(debug_done, "done");
- PDEBUG(debug_biosparam, "bios parameters");
- PDEBUG(debug_phases, "phases");
- PDEBUG(debug_queues, "queues");
- PDEBUG(debug_reset, "reset");
-
- SPRINTF("\n");
-#endif
-
- SPRINTF("\nqueue status:\n");
- if(ISSUE_SC) {
- SPRINTF("not yet issued commands:\n");
- for(ptr=ISSUE_SC; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
- pos += get_command(pos, ptr);
- } else
- SPRINTF("no not yet issued commands\n");
-
- if(CURRENT_SC) {
- SPRINTF("current command:\n");
- pos += get_command(pos, CURRENT_SC);
- } else
- SPRINTF("no current command\n");
-
- if(DISCONNECTED_SC) {
- SPRINTF("disconnected commands:\n");
- for(ptr=DISCONNECTED_SC; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
- pos += get_command(pos, ptr);
- } else
- SPRINTF("no disconnected commands\n");
-
- restore_flags(flags);
-
- pos += get_ports(shpnt, pos);
-
- *start=buffer+offset;
- if (pos - buffer < offset)
- return 0;
- else if (pos - buffer - offset < length)
- return pos - buffer - offset;
- else
- return length;
-}
-
-#ifdef MODULE
-/* Eventually this will go into an include file, but this will be later */
-Scsi_Host_Template driver_template = AHA152X;
-
-#include "scsi_module.c"
-#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 12:18:03 +0000