diff options
| author | Thomas Schwinge <tschwinge@gnu.org> | 2006-10-08 13:52:36 +0000 |
|---|---|---|
| committer | Thomas Schwinge <tschwinge@gnu.org> | 2009-06-18 00:26:43 +0200 |
| commit | 5bde205d1b42d031e6bb1422337ab9a37752b2e7 (patch) | |
| tree | a991facc98c4cb52a275faaaacaeaccf74265972 /linux/dev/drivers | |
| parent | 7cad6f7211281c8be1e92f85b6181c3d9d2665e7 (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/drivers')
| -rw-r--r-- | linux/dev/drivers/scsi/aha152x.c | 3281 |
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 |