4001 lines
99 KiB
C
4001 lines
99 KiB
C
/* aha152x.c -- Adaptec AHA-152x driver
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* Author: Jürgen E. Fischer, fischer@norbit.de
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* Copyright 1993-2004 Jürgen E. Fischer
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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*
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* $Id: aha152x.c,v 2.7 2004/01/24 11:42:59 fischer Exp $
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*
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* $Log: aha152x.c,v $
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* Revision 2.7 2004/01/24 11:42:59 fischer
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* - gather code that is not used by PCMCIA at the end
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* - move request_region for !PCMCIA case to detection
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* - migration to new scsi host api (remove legacy code)
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* - free host scribble before scsi_done
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* - fix error handling
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* - one isapnp device added to id_table
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*
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* Revision 2.6 2003/10/30 20:52:47 fischer
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* - interfaces changes for kernel 2.6
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* - aha152x_probe_one introduced for pcmcia stub
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* - fixed pnpdev handling
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* - instead of allocation a new one, reuse command for request sense after check condition and reset
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* - fixes race in is_complete
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*
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* Revision 2.5 2002/04/14 11:24:53 fischer
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* - isapnp support
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* - abort fixed
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* - 2.5 support
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*
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* Revision 2.4 2000/12/16 12:53:56 fischer
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* - allow REQUEST SENSE to be queued
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* - handle shared PCI interrupts
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*
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* Revision 2.3 2000/11/04 16:40:26 fischer
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* - handle data overruns
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* - extend timeout for data phases
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*
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* Revision 2.2 2000/08/08 19:54:53 fischer
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* - minor changes
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*
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* Revision 2.1 2000/05/17 16:23:17 fischer
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* - signature update
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* - fix for data out w/o scatter gather
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*
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* Revision 2.0 1999/12/25 15:07:32 fischer
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* - interrupt routine completly reworked
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* - basic support for new eh code
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*
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* Revision 1.21 1999/11/10 23:46:36 fischer
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* - default to synchronous operation
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* - synchronous negotiation fixed
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* - added timeout to loops
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* - debugging output can be controlled through procfs
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*
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* Revision 1.20 1999/11/07 18:37:31 fischer
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* - synchronous operation works
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* - resid support for sg driver
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*
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* Revision 1.19 1999/11/02 22:39:59 fischer
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* - moved leading comments to README.aha152x
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* - new additional module parameters
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* - updates for 2.3
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* - support for the Tripace TC1550 controller
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* - interrupt handling changed
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*
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* Revision 1.18 1996/09/07 20:10:40 fischer
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* - fixed can_queue handling (multiple outstanding commands working again)
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*
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* Revision 1.17 1996/08/17 16:05:14 fischer
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* - biosparam improved
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* - interrupt verification
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* - updated documentation
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* - cleanups
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*
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* Revision 1.16 1996/06/09 00:04:56 root
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* - added configuration symbols for insmod (aha152x/aha152x1)
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*
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* Revision 1.15 1996/04/30 14:52:06 fischer
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* - proc info fixed
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* - support for extended translation for >1GB disks
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*
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* Revision 1.14 1996/01/17 15:11:20 fischer
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* - fixed lockup in MESSAGE IN phase after reconnection
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*
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* Revision 1.13 1996/01/09 02:15:53 fischer
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* - some cleanups
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* - moved request_irq behind controller initialization
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* (to avoid spurious interrupts)
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*
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* Revision 1.12 1995/12/16 12:26:07 fischer
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* - barrier()s added
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* - configurable RESET delay added
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*
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* Revision 1.11 1995/12/06 21:18:35 fischer
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* - some minor updates
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*
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* Revision 1.10 1995/07/22 19:18:45 fischer
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* - support for 2 controllers
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* - started synchronous data transfers (not working yet)
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*
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* Revision 1.9 1995/03/18 09:20:24 root
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* - patches for PCMCIA and modules
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*
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* Revision 1.8 1995/01/21 22:07:19 root
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* - snarf_region => request_region
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* - aha152x_intr interface change
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*
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* Revision 1.7 1995/01/02 23:19:36 root
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* - updated COMMAND_SIZE to cmd_len
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* - changed sti() to restore_flags()
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* - fixed some #ifdef which generated warnings
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*
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* Revision 1.6 1994/11/24 20:35:27 root
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* - problem with odd number of bytes in fifo fixed
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*
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* Revision 1.5 1994/10/30 14:39:56 root
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* - abort code fixed
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* - debugging improved
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*
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* Revision 1.4 1994/09/12 11:33:01 root
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* - irqaction to request_irq
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* - abortion updated
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*
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* Revision 1.3 1994/08/04 13:53:05 root
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* - updates for mid-level-driver changes
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* - accept unexpected BUSFREE phase as error condition
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* - parity check now configurable
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*
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* Revision 1.2 1994/07/03 12:56:36 root
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* - cleaned up debugging code
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* - more tweaking on reset delays
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* - updated abort/reset code (pretty untested...)
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*
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* Revision 1.1 1994/05/28 21:18:49 root
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* - update for mid-level interface change (abort-reset)
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* - delays after resets adjusted for some slow devices
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*
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* Revision 1.0 1994/03/25 12:52:00 root
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* - Fixed "more data than expected" problem
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* - added new BIOS signatures
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*
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* Revision 0.102 1994/01/31 20:44:12 root
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* - minor changes in insw/outsw handling
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*
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* Revision 0.101 1993/12/13 01:16:27 root
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* - fixed STATUS phase (non-GOOD stati were dropped sometimes;
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* fixes problems with CD-ROM sector size detection & media change)
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*
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* Revision 0.100 1993/12/10 16:58:47 root
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* - fix for unsuccessful selections in case of non-continuous id assignments
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* on the scsi bus.
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*
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* Revision 0.99 1993/10/24 16:19:59 root
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* - fixed DATA IN (rare read errors gone)
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*
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* Revision 0.98 1993/10/17 12:54:44 root
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* - fixed some recent fixes (shame on me)
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* - moved initialization of scratch area to aha152x_queue
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*
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* Revision 0.97 1993/10/09 18:53:53 root
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* - DATA IN fixed. Rarely left data in the fifo.
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*
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* Revision 0.96 1993/10/03 00:53:59 root
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* - minor changes on DATA IN
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*
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* Revision 0.95 1993/09/24 10:36:01 root
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* - change handling of MSGI after reselection
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* - fixed sti/cli
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* - minor changes
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*
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* Revision 0.94 1993/09/18 14:08:22 root
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* - fixed bug in multiple outstanding command code
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* - changed detection
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* - support for kernel command line configuration
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* - reset corrected
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* - changed message handling
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*
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* Revision 0.93 1993/09/15 20:41:19 root
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* - fixed bugs with multiple outstanding commands
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*
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* Revision 0.92 1993/09/13 02:46:33 root
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* - multiple outstanding commands work (no problems with IBM drive)
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*
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* Revision 0.91 1993/09/12 20:51:46 root
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* added multiple outstanding commands
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* (some problem with this $%&? IBM device remain)
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*
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* Revision 0.9 1993/09/12 11:11:22 root
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* - corrected auto-configuration
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* - changed the auto-configuration (added some '#define's)
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* - added support for dis-/reconnection
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*
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* Revision 0.8 1993/09/06 23:09:39 root
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* - added support for the drive activity light
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* - minor changes
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*
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* Revision 0.7 1993/09/05 14:30:15 root
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* - improved phase detection
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* - now using the new snarf_region code of 0.99pl13
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*
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* Revision 0.6 1993/09/02 11:01:38 root
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* first public release; added some signatures and biosparam()
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*
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* Revision 0.5 1993/08/30 10:23:30 root
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* fixed timing problems with my IBM drive
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*
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* Revision 0.4 1993/08/29 14:06:52 root
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* fixed some problems with timeouts due incomplete commands
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*
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* Revision 0.3 1993/08/28 15:55:03 root
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* writing data works too. mounted and worked on a dos partition
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*
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* Revision 0.2 1993/08/27 22:42:07 root
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* reading data works. Mounted a msdos partition.
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*
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* Revision 0.1 1993/08/25 13:38:30 root
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* first "damn thing doesn't work" version
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*
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* Revision 0.0 1993/08/14 19:54:25 root
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* empty function bodies; detect() works.
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*
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*
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**************************************************************************
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see Documentation/scsi/aha152x.txt for configuration details
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**************************************************************************/
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#include <linux/module.h>
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#include <asm/irq.h>
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#include <linux/io.h>
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#include <linux/blkdev.h>
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#include <asm/system.h>
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#include <linux/completion.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/wait.h>
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#include <linux/ioport.h>
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#include <linux/delay.h>
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#include <linux/proc_fs.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/isapnp.h>
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#include <linux/spinlock.h>
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#include <linux/workqueue.h>
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#include <linux/list.h>
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#include <scsi/scsicam.h>
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#include "scsi.h"
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#include <scsi/scsi_dbg.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_transport_spi.h>
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#include "aha152x.h"
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static LIST_HEAD(aha152x_host_list);
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/* DEFINES */
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/* For PCMCIA cards, always use AUTOCONF */
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#if defined(PCMCIA) || defined(MODULE)
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#if !defined(AUTOCONF)
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#define AUTOCONF
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#endif
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#endif
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#if !defined(AUTOCONF) && !defined(SETUP0)
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#error define AUTOCONF or SETUP0
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#endif
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#if defined(AHA152X_DEBUG)
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#define DEBUG_DEFAULT debug_eh
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#define DPRINTK(when,msgs...) \
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do { if(HOSTDATA(shpnt)->debug & (when)) printk(msgs); } while(0)
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#define DO_LOCK(flags) \
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do { \
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if(spin_is_locked(&QLOCK)) { \
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DPRINTK(debug_intr, DEBUG_LEAD "(%s:%d) already locked at %s:%d\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__, QLOCKER, QLOCKERL); \
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} \
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DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locking\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \
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spin_lock_irqsave(&QLOCK,flags); \
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DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locked\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \
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QLOCKER=__FUNCTION__; \
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QLOCKERL=__LINE__; \
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} while(0)
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#define DO_UNLOCK(flags) \
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do { \
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DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocking (locked at %s:%d)\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__, QLOCKER, QLOCKERL); \
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spin_unlock_irqrestore(&QLOCK,flags); \
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DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocked\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \
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QLOCKER="(not locked)"; \
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QLOCKERL=0; \
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} while(0)
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#else
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#define DPRINTK(when,msgs...)
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#define DO_LOCK(flags) spin_lock_irqsave(&QLOCK,flags)
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#define DO_UNLOCK(flags) spin_unlock_irqrestore(&QLOCK,flags)
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#endif
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#define LEAD "(scsi%d:%d:%d) "
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#define WARN_LEAD KERN_WARNING LEAD
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#define INFO_LEAD KERN_INFO LEAD
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#define NOTE_LEAD KERN_NOTICE LEAD
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#define ERR_LEAD KERN_ERR LEAD
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#define DEBUG_LEAD KERN_DEBUG LEAD
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#define CMDINFO(cmd) \
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(cmd) ? ((cmd)->device->host->host_no) : -1, \
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(cmd) ? ((cmd)->device->id & 0x0f) : -1, \
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(cmd) ? ((cmd)->device->lun & 0x07) : -1
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static inline void
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CMD_INC_RESID(struct scsi_cmnd *cmd, int inc)
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{
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scsi_set_resid(cmd, scsi_get_resid(cmd) + inc);
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}
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#define DELAY_DEFAULT 1000
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#if defined(PCMCIA)
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#define IRQ_MIN 0
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#define IRQ_MAX 16
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#else
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#define IRQ_MIN 9
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#if defined(__PPC)
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#define IRQ_MAX (NR_IRQS-1)
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#else
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#define IRQ_MAX 12
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#endif
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#endif
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enum {
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not_issued = 0x0001, /* command not yet issued */
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selecting = 0x0002, /* target is beeing selected */
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identified = 0x0004, /* IDENTIFY was sent */
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disconnected = 0x0008, /* target disconnected */
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completed = 0x0010, /* target sent COMMAND COMPLETE */
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aborted = 0x0020, /* ABORT was sent */
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resetted = 0x0040, /* BUS DEVICE RESET was sent */
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spiordy = 0x0080, /* waiting for SPIORDY to raise */
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syncneg = 0x0100, /* synchronous negotiation in progress */
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aborting = 0x0200, /* ABORT is pending */
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resetting = 0x0400, /* BUS DEVICE RESET is pending */
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check_condition = 0x0800, /* requesting sense after CHECK CONDITION */
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};
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MODULE_AUTHOR("Jürgen Fischer");
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MODULE_DESCRIPTION(AHA152X_REVID);
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MODULE_LICENSE("GPL");
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#if !defined(PCMCIA)
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#if defined(MODULE)
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static int io[] = {0, 0};
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module_param_array(io, int, NULL, 0);
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MODULE_PARM_DESC(io,"base io address of controller");
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static int irq[] = {0, 0};
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module_param_array(irq, int, NULL, 0);
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MODULE_PARM_DESC(irq,"interrupt for controller");
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static int scsiid[] = {7, 7};
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module_param_array(scsiid, int, NULL, 0);
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MODULE_PARM_DESC(scsiid,"scsi id of controller");
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static int reconnect[] = {1, 1};
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module_param_array(reconnect, int, NULL, 0);
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MODULE_PARM_DESC(reconnect,"allow targets to disconnect");
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static int parity[] = {1, 1};
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module_param_array(parity, int, NULL, 0);
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MODULE_PARM_DESC(parity,"use scsi parity");
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static int sync[] = {1, 1};
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module_param_array(sync, int, NULL, 0);
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MODULE_PARM_DESC(sync,"use synchronous transfers");
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static int delay[] = {DELAY_DEFAULT, DELAY_DEFAULT};
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module_param_array(delay, int, NULL, 0);
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MODULE_PARM_DESC(delay,"scsi reset delay");
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static int exttrans[] = {0, 0};
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module_param_array(exttrans, int, NULL, 0);
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MODULE_PARM_DESC(exttrans,"use extended translation");
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#if !defined(AHA152X_DEBUG)
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static int aha152x[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0};
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module_param_array(aha152x, int, NULL, 0);
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MODULE_PARM_DESC(aha152x, "parameters for first controller");
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static int aha152x1[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0};
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module_param_array(aha152x1, int, NULL, 0);
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MODULE_PARM_DESC(aha152x1, "parameters for second controller");
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#else
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static int debug[] = {DEBUG_DEFAULT, DEBUG_DEFAULT};
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module_param_array(debug, int, NULL, 0);
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MODULE_PARM_DESC(debug, "flags for driver debugging");
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static int aha152x[] = {0, 11, 7, 1, 1, 1, DELAY_DEFAULT, 0, DEBUG_DEFAULT};
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module_param_array(aha152x, int, NULL, 0);
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MODULE_PARM_DESC(aha152x, "parameters for first controller");
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static int aha152x1[] = {0, 11, 7, 1, 1, 1, DELAY_DEFAULT, 0, DEBUG_DEFAULT};
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module_param_array(aha152x1, int, NULL, 0);
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MODULE_PARM_DESC(aha152x1, "parameters for second controller");
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#endif /* !defined(AHA152X_DEBUG) */
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#endif /* MODULE */
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#ifdef __ISAPNP__
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static struct isapnp_device_id id_table[] __devinitdata = {
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{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
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ISAPNP_VENDOR('A','D','P'), ISAPNP_FUNCTION(0x1505), 0 },
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{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
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ISAPNP_VENDOR('A','D','P'), ISAPNP_FUNCTION(0x1530), 0 },
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{ ISAPNP_DEVICE_SINGLE_END, }
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};
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MODULE_DEVICE_TABLE(isapnp, id_table);
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#endif /* ISAPNP */
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#endif /* !PCMCIA */
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static struct scsi_host_template aha152x_driver_template;
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/*
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* internal states of the host
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*
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*/
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enum aha152x_state {
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idle=0,
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unknown,
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seldo,
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seldi,
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selto,
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busfree,
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msgo,
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cmd,
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msgi,
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status,
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datai,
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datao,
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parerr,
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rsti,
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maxstate
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};
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/*
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* current state information of the host
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*
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*/
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struct aha152x_hostdata {
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Scsi_Cmnd *issue_SC;
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/* pending commands to issue */
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Scsi_Cmnd *current_SC;
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/* current command on the bus */
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Scsi_Cmnd *disconnected_SC;
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/* commands that disconnected */
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Scsi_Cmnd *done_SC;
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/* command that was completed */
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spinlock_t lock;
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/* host lock */
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#if defined(AHA152X_DEBUG)
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const char *locker;
|
|
/* which function has the lock */
|
|
int lockerl; /* where did it get it */
|
|
|
|
int debug; /* current debugging setting */
|
|
#endif
|
|
|
|
#if defined(AHA152X_STAT)
|
|
int total_commands;
|
|
int disconnections;
|
|
int busfree_without_any_action;
|
|
int busfree_without_old_command;
|
|
int busfree_without_new_command;
|
|
int busfree_without_done_command;
|
|
int busfree_with_check_condition;
|
|
int count[maxstate];
|
|
int count_trans[maxstate];
|
|
unsigned long time[maxstate];
|
|
#endif
|
|
|
|
int commands; /* current number of commands */
|
|
|
|
int reconnect; /* disconnection allowed */
|
|
int parity; /* parity checking enabled */
|
|
int synchronous; /* synchronous transferes enabled */
|
|
int delay; /* reset out delay */
|
|
int ext_trans; /* extended translation enabled */
|
|
|
|
int swint; /* software-interrupt was fired during detect() */
|
|
int service; /* bh needs to be run */
|
|
int in_intr; /* bh is running */
|
|
|
|
/* current state,
|
|
previous state,
|
|
last state different from current state */
|
|
enum aha152x_state state, prevstate, laststate;
|
|
|
|
int target;
|
|
/* reconnecting target */
|
|
|
|
unsigned char syncrate[8];
|
|
/* current synchronous transfer agreements */
|
|
|
|
unsigned char syncneg[8];
|
|
/* 0: no negotiation;
|
|
* 1: negotiation in progress;
|
|
* 2: negotiation completed
|
|
*/
|
|
|
|
int cmd_i;
|
|
/* number of sent bytes of current command */
|
|
|
|
int msgi_len;
|
|
/* number of received message bytes */
|
|
unsigned char msgi[256];
|
|
/* received message bytes */
|
|
|
|
int msgo_i, msgo_len;
|
|
/* number of sent bytes and length of current messages */
|
|
unsigned char msgo[256];
|
|
/* pending messages */
|
|
|
|
int data_len;
|
|
/* number of sent/received bytes in dataphase */
|
|
|
|
unsigned long io_port0;
|
|
unsigned long io_port1;
|
|
|
|
#ifdef __ISAPNP__
|
|
struct pnp_dev *pnpdev;
|
|
#endif
|
|
struct list_head host_list;
|
|
};
|
|
|
|
|
|
/*
|
|
* host specific command extension
|
|
*
|
|
*/
|
|
struct aha152x_scdata {
|
|
Scsi_Cmnd *next; /* next sc in queue */
|
|
struct completion *done;/* semaphore to block on */
|
|
unsigned char aha_orig_cmd_len;
|
|
unsigned char aha_orig_cmnd[MAX_COMMAND_SIZE];
|
|
int aha_orig_resid;
|
|
};
|
|
|
|
/* access macros for hostdata */
|
|
|
|
#define HOSTDATA(shpnt) ((struct aha152x_hostdata *) &shpnt->hostdata)
|
|
|
|
#define HOSTNO ((shpnt)->host_no)
|
|
|
|
#define CURRENT_SC (HOSTDATA(shpnt)->current_SC)
|
|
#define DONE_SC (HOSTDATA(shpnt)->done_SC)
|
|
#define ISSUE_SC (HOSTDATA(shpnt)->issue_SC)
|
|
#define DISCONNECTED_SC (HOSTDATA(shpnt)->disconnected_SC)
|
|
#define QLOCK (HOSTDATA(shpnt)->lock)
|
|
#define QLOCKER (HOSTDATA(shpnt)->locker)
|
|
#define QLOCKERL (HOSTDATA(shpnt)->lockerl)
|
|
|
|
#define STATE (HOSTDATA(shpnt)->state)
|
|
#define PREVSTATE (HOSTDATA(shpnt)->prevstate)
|
|
#define LASTSTATE (HOSTDATA(shpnt)->laststate)
|
|
|
|
#define RECONN_TARGET (HOSTDATA(shpnt)->target)
|
|
|
|
#define CMD_I (HOSTDATA(shpnt)->cmd_i)
|
|
|
|
#define MSGO(i) (HOSTDATA(shpnt)->msgo[i])
|
|
#define MSGO_I (HOSTDATA(shpnt)->msgo_i)
|
|
#define MSGOLEN (HOSTDATA(shpnt)->msgo_len)
|
|
#define ADDMSGO(x) (MSGOLEN<256 ? (void)(MSGO(MSGOLEN++)=x) : aha152x_error(shpnt,"MSGO overflow"))
|
|
|
|
#define MSGI(i) (HOSTDATA(shpnt)->msgi[i])
|
|
#define MSGILEN (HOSTDATA(shpnt)->msgi_len)
|
|
#define ADDMSGI(x) (MSGILEN<256 ? (void)(MSGI(MSGILEN++)=x) : aha152x_error(shpnt,"MSGI overflow"))
|
|
|
|
#define DATA_LEN (HOSTDATA(shpnt)->data_len)
|
|
|
|
#define SYNCRATE (HOSTDATA(shpnt)->syncrate[CURRENT_SC->device->id])
|
|
#define SYNCNEG (HOSTDATA(shpnt)->syncneg[CURRENT_SC->device->id])
|
|
|
|
#define DELAY (HOSTDATA(shpnt)->delay)
|
|
#define EXT_TRANS (HOSTDATA(shpnt)->ext_trans)
|
|
#define TC1550 (HOSTDATA(shpnt)->tc1550)
|
|
#define RECONNECT (HOSTDATA(shpnt)->reconnect)
|
|
#define PARITY (HOSTDATA(shpnt)->parity)
|
|
#define SYNCHRONOUS (HOSTDATA(shpnt)->synchronous)
|
|
|
|
#define HOSTIOPORT0 (HOSTDATA(shpnt)->io_port0)
|
|
#define HOSTIOPORT1 (HOSTDATA(shpnt)->io_port1)
|
|
|
|
#define SCDATA(SCpnt) ((struct aha152x_scdata *) (SCpnt)->host_scribble)
|
|
#define SCNEXT(SCpnt) SCDATA(SCpnt)->next
|
|
#define SCSEM(SCpnt) SCDATA(SCpnt)->done
|
|
|
|
#define SG_ADDRESS(buffer) ((char *) (page_address((buffer)->page)+(buffer)->offset))
|
|
|
|
/* state handling */
|
|
static void seldi_run(struct Scsi_Host *shpnt);
|
|
static void seldo_run(struct Scsi_Host *shpnt);
|
|
static void selto_run(struct Scsi_Host *shpnt);
|
|
static void busfree_run(struct Scsi_Host *shpnt);
|
|
|
|
static void msgo_init(struct Scsi_Host *shpnt);
|
|
static void msgo_run(struct Scsi_Host *shpnt);
|
|
static void msgo_end(struct Scsi_Host *shpnt);
|
|
|
|
static void cmd_init(struct Scsi_Host *shpnt);
|
|
static void cmd_run(struct Scsi_Host *shpnt);
|
|
static void cmd_end(struct Scsi_Host *shpnt);
|
|
|
|
static void datai_init(struct Scsi_Host *shpnt);
|
|
static void datai_run(struct Scsi_Host *shpnt);
|
|
static void datai_end(struct Scsi_Host *shpnt);
|
|
|
|
static void datao_init(struct Scsi_Host *shpnt);
|
|
static void datao_run(struct Scsi_Host *shpnt);
|
|
static void datao_end(struct Scsi_Host *shpnt);
|
|
|
|
static void status_run(struct Scsi_Host *shpnt);
|
|
|
|
static void msgi_run(struct Scsi_Host *shpnt);
|
|
static void msgi_end(struct Scsi_Host *shpnt);
|
|
|
|
static void parerr_run(struct Scsi_Host *shpnt);
|
|
static void rsti_run(struct Scsi_Host *shpnt);
|
|
|
|
static void is_complete(struct Scsi_Host *shpnt);
|
|
|
|
/*
|
|
* driver states
|
|
*
|
|
*/
|
|
static struct {
|
|
char *name;
|
|
void (*init)(struct Scsi_Host *);
|
|
void (*run)(struct Scsi_Host *);
|
|
void (*end)(struct Scsi_Host *);
|
|
int spio;
|
|
} states[] = {
|
|
{ "idle", NULL, NULL, NULL, 0},
|
|
{ "unknown", NULL, NULL, NULL, 0},
|
|
{ "seldo", NULL, seldo_run, NULL, 0},
|
|
{ "seldi", NULL, seldi_run, NULL, 0},
|
|
{ "selto", NULL, selto_run, NULL, 0},
|
|
{ "busfree", NULL, busfree_run, NULL, 0},
|
|
{ "msgo", msgo_init, msgo_run, msgo_end, 1},
|
|
{ "cmd", cmd_init, cmd_run, cmd_end, 1},
|
|
{ "msgi", NULL, msgi_run, msgi_end, 1},
|
|
{ "status", NULL, status_run, NULL, 1},
|
|
{ "datai", datai_init, datai_run, datai_end, 0},
|
|
{ "datao", datao_init, datao_run, datao_end, 0},
|
|
{ "parerr", NULL, parerr_run, NULL, 0},
|
|
{ "rsti", NULL, rsti_run, NULL, 0},
|
|
};
|
|
|
|
/* setup & interrupt */
|
|
static irqreturn_t intr(int irq, void *dev_id);
|
|
static void reset_ports(struct Scsi_Host *shpnt);
|
|
static void aha152x_error(struct Scsi_Host *shpnt, char *msg);
|
|
static void done(struct Scsi_Host *shpnt, int error);
|
|
|
|
/* diagnostics */
|
|
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);
|
|
|
|
|
|
/*
|
|
* queue services:
|
|
*
|
|
*/
|
|
static inline void append_SC(Scsi_Cmnd **SC, Scsi_Cmnd *new_SC)
|
|
{
|
|
Scsi_Cmnd *end;
|
|
|
|
SCNEXT(new_SC) = NULL;
|
|
if (!*SC)
|
|
*SC = new_SC;
|
|
else {
|
|
for (end = *SC; SCNEXT(end); end = SCNEXT(end))
|
|
;
|
|
SCNEXT(end) = new_SC;
|
|
}
|
|
}
|
|
|
|
static inline Scsi_Cmnd *remove_first_SC(Scsi_Cmnd ** SC)
|
|
{
|
|
Scsi_Cmnd *ptr;
|
|
|
|
ptr = *SC;
|
|
if (ptr) {
|
|
*SC = SCNEXT(*SC);
|
|
SCNEXT(ptr)=NULL;
|
|
}
|
|
return ptr;
|
|
}
|
|
|
|
static inline Scsi_Cmnd *remove_lun_SC(Scsi_Cmnd ** SC, int target, int lun)
|
|
{
|
|
Scsi_Cmnd *ptr, *prev;
|
|
|
|
for (ptr = *SC, prev = NULL;
|
|
ptr && ((ptr->device->id != target) || (ptr->device->lun != lun));
|
|
prev = ptr, ptr = SCNEXT(ptr))
|
|
;
|
|
|
|
if (ptr) {
|
|
if (prev)
|
|
SCNEXT(prev) = SCNEXT(ptr);
|
|
else
|
|
*SC = SCNEXT(ptr);
|
|
|
|
SCNEXT(ptr)=NULL;
|
|
}
|
|
|
|
return ptr;
|
|
}
|
|
|
|
static inline Scsi_Cmnd *remove_SC(Scsi_Cmnd **SC, Scsi_Cmnd *SCp)
|
|
{
|
|
Scsi_Cmnd *ptr, *prev;
|
|
|
|
for (ptr = *SC, prev = NULL;
|
|
ptr && SCp!=ptr;
|
|
prev = ptr, ptr = SCNEXT(ptr))
|
|
;
|
|
|
|
if (ptr) {
|
|
if (prev)
|
|
SCNEXT(prev) = SCNEXT(ptr);
|
|
else
|
|
*SC = SCNEXT(ptr);
|
|
|
|
SCNEXT(ptr)=NULL;
|
|
}
|
|
|
|
return ptr;
|
|
}
|
|
|
|
static irqreturn_t swintr(int irqno, void *dev_id)
|
|
{
|
|
struct Scsi_Host *shpnt = dev_id;
|
|
|
|
HOSTDATA(shpnt)->swint++;
|
|
|
|
SETPORT(DMACNTRL0, INTEN);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup)
|
|
{
|
|
struct Scsi_Host *shpnt;
|
|
|
|
shpnt = scsi_host_alloc(&aha152x_driver_template, sizeof(struct aha152x_hostdata));
|
|
if (!shpnt) {
|
|
printk(KERN_ERR "aha152x: scsi_host_alloc failed\n");
|
|
return NULL;
|
|
}
|
|
|
|
memset(HOSTDATA(shpnt), 0, sizeof *HOSTDATA(shpnt));
|
|
INIT_LIST_HEAD(&HOSTDATA(shpnt)->host_list);
|
|
|
|
/* need to have host registered before triggering any interrupt */
|
|
list_add_tail(&HOSTDATA(shpnt)->host_list, &aha152x_host_list);
|
|
|
|
shpnt->io_port = setup->io_port;
|
|
shpnt->n_io_port = IO_RANGE;
|
|
shpnt->irq = setup->irq;
|
|
|
|
if (!setup->tc1550) {
|
|
HOSTIOPORT0 = setup->io_port;
|
|
HOSTIOPORT1 = setup->io_port;
|
|
} else {
|
|
HOSTIOPORT0 = setup->io_port+0x10;
|
|
HOSTIOPORT1 = setup->io_port-0x10;
|
|
}
|
|
|
|
spin_lock_init(&QLOCK);
|
|
RECONNECT = setup->reconnect;
|
|
SYNCHRONOUS = setup->synchronous;
|
|
PARITY = setup->parity;
|
|
DELAY = setup->delay;
|
|
EXT_TRANS = setup->ext_trans;
|
|
|
|
#if defined(AHA152X_DEBUG)
|
|
HOSTDATA(shpnt)->debug = setup->debug;
|
|
#endif
|
|
|
|
SETPORT(SCSIID, setup->scsiid << 4);
|
|
shpnt->this_id = setup->scsiid;
|
|
|
|
if (setup->reconnect)
|
|
shpnt->can_queue = AHA152X_MAXQUEUE;
|
|
|
|
/* RESET OUT */
|
|
printk("aha152x: resetting bus...\n");
|
|
SETPORT(SCSISEQ, SCSIRSTO);
|
|
mdelay(256);
|
|
SETPORT(SCSISEQ, 0);
|
|
mdelay(DELAY);
|
|
|
|
reset_ports(shpnt);
|
|
|
|
printk(KERN_INFO
|
|
"aha152x%d%s: "
|
|
"vital data: rev=%x, "
|
|
"io=0x%03lx (0x%03lx/0x%03lx), "
|
|
"irq=%d, "
|
|
"scsiid=%d, "
|
|
"reconnect=%s, "
|
|
"parity=%s, "
|
|
"synchronous=%s, "
|
|
"delay=%d, "
|
|
"extended translation=%s\n",
|
|
shpnt->host_no, setup->tc1550 ? " (tc1550 mode)" : "",
|
|
GETPORT(REV) & 0x7,
|
|
shpnt->io_port, HOSTIOPORT0, HOSTIOPORT1,
|
|
shpnt->irq,
|
|
shpnt->this_id,
|
|
RECONNECT ? "enabled" : "disabled",
|
|
PARITY ? "enabled" : "disabled",
|
|
SYNCHRONOUS ? "enabled" : "disabled",
|
|
DELAY,
|
|
EXT_TRANS ? "enabled" : "disabled");
|
|
|
|
/* not expecting any interrupts */
|
|
SETPORT(SIMODE0, 0);
|
|
SETPORT(SIMODE1, 0);
|
|
|
|
if( request_irq(shpnt->irq, swintr, IRQF_DISABLED|IRQF_SHARED, "aha152x", shpnt) ) {
|
|
printk(KERN_ERR "aha152x%d: irq %d busy.\n", shpnt->host_no, shpnt->irq);
|
|
goto out_host_put;
|
|
}
|
|
|
|
HOSTDATA(shpnt)->swint = 0;
|
|
|
|
printk(KERN_INFO "aha152x%d: trying software interrupt, ", shpnt->host_no);
|
|
|
|
mb();
|
|
SETPORT(DMACNTRL0, SWINT|INTEN);
|
|
mdelay(1000);
|
|
free_irq(shpnt->irq, shpnt);
|
|
|
|
if (!HOSTDATA(shpnt)->swint) {
|
|
if (TESTHI(DMASTAT, INTSTAT)) {
|
|
printk("lost.\n");
|
|
} else {
|
|
printk("failed.\n");
|
|
}
|
|
|
|
SETPORT(DMACNTRL0, INTEN);
|
|
|
|
printk(KERN_ERR "aha152x%d: irq %d possibly wrong. "
|
|
"Please verify.\n", shpnt->host_no, shpnt->irq);
|
|
goto out_host_put;
|
|
}
|
|
printk("ok.\n");
|
|
|
|
|
|
/* clear interrupts */
|
|
SETPORT(SSTAT0, 0x7f);
|
|
SETPORT(SSTAT1, 0xef);
|
|
|
|
if ( request_irq(shpnt->irq, intr, IRQF_DISABLED|IRQF_SHARED, "aha152x", shpnt) ) {
|
|
printk(KERN_ERR "aha152x%d: failed to reassign irq %d.\n", shpnt->host_no, shpnt->irq);
|
|
goto out_host_put;
|
|
}
|
|
|
|
if( scsi_add_host(shpnt, NULL) ) {
|
|
free_irq(shpnt->irq, shpnt);
|
|
printk(KERN_ERR "aha152x%d: failed to add host.\n", shpnt->host_no);
|
|
goto out_host_put;
|
|
}
|
|
|
|
scsi_scan_host(shpnt);
|
|
|
|
return shpnt;
|
|
|
|
out_host_put:
|
|
list_del(&HOSTDATA(shpnt)->host_list);
|
|
scsi_host_put(shpnt);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void aha152x_release(struct Scsi_Host *shpnt)
|
|
{
|
|
if(!shpnt)
|
|
return;
|
|
|
|
if (shpnt->irq)
|
|
free_irq(shpnt->irq, shpnt);
|
|
|
|
#if !defined(PCMCIA)
|
|
if (shpnt->io_port)
|
|
release_region(shpnt->io_port, IO_RANGE);
|
|
#endif
|
|
|
|
#ifdef __ISAPNP__
|
|
if (HOSTDATA(shpnt)->pnpdev)
|
|
pnp_device_detach(HOSTDATA(shpnt)->pnpdev);
|
|
#endif
|
|
|
|
scsi_remove_host(shpnt);
|
|
list_del(&HOSTDATA(shpnt)->host_list);
|
|
scsi_host_put(shpnt);
|
|
}
|
|
|
|
|
|
/*
|
|
* setup controller to generate interrupts depending
|
|
* on current state (lock has to be acquired)
|
|
*
|
|
*/
|
|
static int setup_expected_interrupts(struct Scsi_Host *shpnt)
|
|
{
|
|
if(CURRENT_SC) {
|
|
CURRENT_SC->SCp.phase |= 1 << 16;
|
|
|
|
if(CURRENT_SC->SCp.phase & selecting) {
|
|
DPRINTK(debug_intr, DEBUG_LEAD "expecting: (seldo) (seltimo) (seldi)\n", CMDINFO(CURRENT_SC));
|
|
SETPORT(SSTAT1, SELTO);
|
|
SETPORT(SIMODE0, ENSELDO | (DISCONNECTED_SC ? ENSELDI : 0));
|
|
SETPORT(SIMODE1, ENSELTIMO);
|
|
} else {
|
|
DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (busfree) %s\n", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.phase & spiordy ? "(spiordy)" : "");
|
|
SETPORT(SIMODE0, (CURRENT_SC->SCp.phase & spiordy) ? ENSPIORDY : 0);
|
|
SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
|
|
}
|
|
} else if(STATE==seldi) {
|
|
DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (identify)\n", CMDINFO(CURRENT_SC));
|
|
SETPORT(SIMODE0, 0);
|
|
SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
|
|
} else {
|
|
DPRINTK(debug_intr, DEBUG_LEAD "expecting: %s %s\n",
|
|
CMDINFO(CURRENT_SC),
|
|
DISCONNECTED_SC ? "(reselection)" : "",
|
|
ISSUE_SC ? "(busfree)" : "");
|
|
SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
|
|
SETPORT(SIMODE1, ENSCSIRST | ( (ISSUE_SC||DONE_SC) ? ENBUSFREE : 0));
|
|
}
|
|
|
|
if(!HOSTDATA(shpnt)->in_intr)
|
|
SETBITS(DMACNTRL0, INTEN);
|
|
|
|
return TESTHI(DMASTAT, INTSTAT);
|
|
}
|
|
|
|
|
|
/*
|
|
* Queue a command and setup interrupts for a free bus.
|
|
*/
|
|
static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete,
|
|
int phase, void (*done)(Scsi_Cmnd *))
|
|
{
|
|
struct Scsi_Host *shpnt = SCpnt->device->host;
|
|
unsigned long flags;
|
|
|
|
#if defined(AHA152X_DEBUG)
|
|
if (HOSTDATA(shpnt)->debug & debug_queue) {
|
|
printk(INFO_LEAD "queue: %p; cmd_len=%d pieces=%d size=%u cmnd=",
|
|
CMDINFO(SCpnt), SCpnt, SCpnt->cmd_len,
|
|
scsi_sg_count(SCpnt), scsi_bufflen(SCpnt));
|
|
__scsi_print_command(SCpnt->cmnd);
|
|
}
|
|
#endif
|
|
|
|
SCpnt->scsi_done = done;
|
|
SCpnt->SCp.phase = not_issued | phase;
|
|
SCpnt->SCp.Status = 0x1; /* Ilegal status by SCSI standard */
|
|
SCpnt->SCp.Message = 0;
|
|
SCpnt->SCp.have_data_in = 0;
|
|
SCpnt->SCp.sent_command = 0;
|
|
|
|
if(SCpnt->SCp.phase & (resetting|check_condition)) {
|
|
if(SCpnt->host_scribble==0 || SCSEM(SCpnt) || SCNEXT(SCpnt)) {
|
|
printk(ERR_LEAD "cannot reuse command\n", CMDINFO(SCpnt));
|
|
return FAILED;
|
|
}
|
|
} else {
|
|
SCpnt->host_scribble = kmalloc(sizeof(struct aha152x_scdata), GFP_ATOMIC);
|
|
if(SCpnt->host_scribble==0) {
|
|
printk(ERR_LEAD "allocation failed\n", CMDINFO(SCpnt));
|
|
return FAILED;
|
|
}
|
|
}
|
|
|
|
SCNEXT(SCpnt) = NULL;
|
|
SCSEM(SCpnt) = complete;
|
|
|
|
/* 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 */
|
|
|
|
if ((phase & (check_condition|resetting)) || !scsi_sglist(SCpnt)) {
|
|
if (phase & check_condition) {
|
|
SCpnt->SCp.ptr = SCpnt->sense_buffer;
|
|
SCpnt->SCp.this_residual = sizeof(SCpnt->sense_buffer);
|
|
scsi_set_resid(SCpnt, sizeof(SCpnt->sense_buffer));
|
|
} else {
|
|
SCpnt->SCp.ptr = NULL;
|
|
SCpnt->SCp.this_residual = 0;
|
|
scsi_set_resid(SCpnt, 0);
|
|
}
|
|
SCpnt->SCp.buffer = NULL;
|
|
SCpnt->SCp.buffers_residual = 0;
|
|
} else {
|
|
scsi_set_resid(SCpnt, scsi_bufflen(SCpnt));
|
|
SCpnt->SCp.buffer = scsi_sglist(SCpnt);
|
|
SCpnt->SCp.ptr = SG_ADDRESS(SCpnt->SCp.buffer);
|
|
SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length;
|
|
SCpnt->SCp.buffers_residual = scsi_sg_count(SCpnt) - 1;
|
|
}
|
|
|
|
DO_LOCK(flags);
|
|
|
|
#if defined(AHA152X_STAT)
|
|
HOSTDATA(shpnt)->total_commands++;
|
|
#endif
|
|
|
|
/* Turn led on, when this is the first command. */
|
|
HOSTDATA(shpnt)->commands++;
|
|
if (HOSTDATA(shpnt)->commands==1)
|
|
SETPORT(PORTA, 1);
|
|
|
|
append_SC(&ISSUE_SC, SCpnt);
|
|
|
|
if(!HOSTDATA(shpnt)->in_intr)
|
|
setup_expected_interrupts(shpnt);
|
|
|
|
DO_UNLOCK(flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* queue a command
|
|
*
|
|
*/
|
|
static int aha152x_queue(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
|
|
{
|
|
#if 0
|
|
if(*SCpnt->cmnd == REQUEST_SENSE) {
|
|
SCpnt->result = 0;
|
|
done(SCpnt);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
return aha152x_internal_queue(SCpnt, NULL, 0, done);
|
|
}
|
|
|
|
|
|
/*
|
|
*
|
|
*
|
|
*/
|
|
static void reset_done(Scsi_Cmnd *SCpnt)
|
|
{
|
|
#if 0
|
|
struct Scsi_Host *shpnt = SCpnt->host;
|
|
DPRINTK(debug_eh, INFO_LEAD "reset_done called\n", CMDINFO(SCpnt));
|
|
#endif
|
|
if(SCSEM(SCpnt)) {
|
|
complete(SCSEM(SCpnt));
|
|
} else {
|
|
printk(KERN_ERR "aha152x: reset_done w/o completion\n");
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Abort a command
|
|
*
|
|
*/
|
|
static int aha152x_abort(Scsi_Cmnd *SCpnt)
|
|
{
|
|
struct Scsi_Host *shpnt = SCpnt->device->host;
|
|
Scsi_Cmnd *ptr;
|
|
unsigned long flags;
|
|
|
|
#if defined(AHA152X_DEBUG)
|
|
if(HOSTDATA(shpnt)->debug & debug_eh) {
|
|
printk(DEBUG_LEAD "abort(%p)", CMDINFO(SCpnt), SCpnt);
|
|
show_queues(shpnt);
|
|
}
|
|
#endif
|
|
|
|
DO_LOCK(flags);
|
|
|
|
ptr=remove_SC(&ISSUE_SC, SCpnt);
|
|
|
|
if(ptr) {
|
|
DPRINTK(debug_eh, DEBUG_LEAD "not yet issued - SUCCESS\n", CMDINFO(SCpnt));
|
|
|
|
HOSTDATA(shpnt)->commands--;
|
|
if (!HOSTDATA(shpnt)->commands)
|
|
SETPORT(PORTA, 0);
|
|
DO_UNLOCK(flags);
|
|
|
|
kfree(SCpnt->host_scribble);
|
|
SCpnt->host_scribble=NULL;
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
DO_UNLOCK(flags);
|
|
|
|
/*
|
|
* FIXME:
|
|
* for current command: queue ABORT for message out and raise ATN
|
|
* for disconnected command: pseudo SC with ABORT message or ABORT on reselection?
|
|
*
|
|
*/
|
|
|
|
printk(ERR_LEAD "cannot abort running or disconnected command\n", CMDINFO(SCpnt));
|
|
|
|
return FAILED;
|
|
}
|
|
|
|
/*
|
|
* Reset a device
|
|
*
|
|
*/
|
|
static int aha152x_device_reset(Scsi_Cmnd * SCpnt)
|
|
{
|
|
struct Scsi_Host *shpnt = SCpnt->device->host;
|
|
DECLARE_COMPLETION(done);
|
|
int ret, issued, disconnected;
|
|
unsigned char old_cmd_len = SCpnt->cmd_len;
|
|
unsigned long flags;
|
|
unsigned long timeleft;
|
|
|
|
#if defined(AHA152X_DEBUG)
|
|
if(HOSTDATA(shpnt)->debug & debug_eh) {
|
|
printk(INFO_LEAD "aha152x_device_reset(%p)", CMDINFO(SCpnt), SCpnt);
|
|
show_queues(shpnt);
|
|
}
|
|
#endif
|
|
|
|
if(CURRENT_SC==SCpnt) {
|
|
printk(ERR_LEAD "cannot reset current device\n", CMDINFO(SCpnt));
|
|
return FAILED;
|
|
}
|
|
|
|
DO_LOCK(flags);
|
|
issued = remove_SC(&ISSUE_SC, SCpnt)==0;
|
|
disconnected = issued && remove_SC(&DISCONNECTED_SC, SCpnt);
|
|
DO_UNLOCK(flags);
|
|
|
|
SCpnt->cmd_len = 0;
|
|
|
|
aha152x_internal_queue(SCpnt, &done, resetting, reset_done);
|
|
|
|
timeleft = wait_for_completion_timeout(&done, 100*HZ);
|
|
if (!timeleft) {
|
|
/* remove command from issue queue */
|
|
DO_LOCK(flags);
|
|
remove_SC(&ISSUE_SC, SCpnt);
|
|
DO_UNLOCK(flags);
|
|
}
|
|
|
|
SCpnt->cmd_len = old_cmd_len;
|
|
|
|
DO_LOCK(flags);
|
|
|
|
if(SCpnt->SCp.phase & resetted) {
|
|
HOSTDATA(shpnt)->commands--;
|
|
if (!HOSTDATA(shpnt)->commands)
|
|
SETPORT(PORTA, 0);
|
|
kfree(SCpnt->host_scribble);
|
|
SCpnt->host_scribble=NULL;
|
|
|
|
ret = SUCCESS;
|
|
} else {
|
|
/* requeue */
|
|
if(!issued) {
|
|
append_SC(&ISSUE_SC, SCpnt);
|
|
} else if(disconnected) {
|
|
append_SC(&DISCONNECTED_SC, SCpnt);
|
|
}
|
|
|
|
ret = FAILED;
|
|
}
|
|
|
|
DO_UNLOCK(flags);
|
|
return ret;
|
|
}
|
|
|
|
static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs)
|
|
{
|
|
Scsi_Cmnd *ptr;
|
|
|
|
ptr=*SCs;
|
|
while(ptr) {
|
|
Scsi_Cmnd *next;
|
|
|
|
if(SCDATA(ptr)) {
|
|
next = SCNEXT(ptr);
|
|
} else {
|
|
printk(DEBUG_LEAD "queue corrupted at %p\n", CMDINFO(ptr), ptr);
|
|
next = NULL;
|
|
}
|
|
|
|
if (!ptr->device->soft_reset) {
|
|
DPRINTK(debug_eh, DEBUG_LEAD "disconnected command %p removed\n", CMDINFO(ptr), ptr);
|
|
remove_SC(SCs, ptr);
|
|
HOSTDATA(shpnt)->commands--;
|
|
kfree(ptr->host_scribble);
|
|
ptr->host_scribble=NULL;
|
|
}
|
|
|
|
ptr = next;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Reset the bus
|
|
*
|
|
*/
|
|
static int aha152x_bus_reset_host(struct Scsi_Host *shpnt)
|
|
{
|
|
unsigned long flags;
|
|
|
|
DO_LOCK(flags);
|
|
|
|
#if defined(AHA152X_DEBUG)
|
|
if(HOSTDATA(shpnt)->debug & debug_eh) {
|
|
printk(KERN_DEBUG "scsi%d: bus reset", shpnt->host_no);
|
|
show_queues(shpnt);
|
|
}
|
|
#endif
|
|
|
|
free_hard_reset_SCs(shpnt, &ISSUE_SC);
|
|
free_hard_reset_SCs(shpnt, &DISCONNECTED_SC);
|
|
|
|
DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting bus\n", shpnt->host_no);
|
|
|
|
SETPORT(SCSISEQ, SCSIRSTO);
|
|
mdelay(256);
|
|
SETPORT(SCSISEQ, 0);
|
|
mdelay(DELAY);
|
|
|
|
DPRINTK(debug_eh, KERN_DEBUG "scsi%d: bus resetted\n", shpnt->host_no);
|
|
|
|
setup_expected_interrupts(shpnt);
|
|
if(HOSTDATA(shpnt)->commands==0)
|
|
SETPORT(PORTA, 0);
|
|
|
|
DO_UNLOCK(flags);
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
/*
|
|
* Reset the bus
|
|
*
|
|
*/
|
|
static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
|
|
{
|
|
return aha152x_bus_reset_host(SCpnt->device->host);
|
|
}
|
|
|
|
/*
|
|
* Restore default values to the AIC-6260 registers and reset the fifos
|
|
*
|
|
*/
|
|
static void reset_ports(struct Scsi_Host *shpnt)
|
|
{
|
|
unsigned long flags;
|
|
|
|
/* disable interrupts */
|
|
SETPORT(DMACNTRL0, RSTFIFO);
|
|
|
|
SETPORT(SCSISEQ, 0);
|
|
|
|
SETPORT(SXFRCTL1, 0);
|
|
SETPORT(SCSISIG, 0);
|
|
SETRATE(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 fifos and transfer count */
|
|
SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
|
|
SETPORT(SXFRCTL0, CH1);
|
|
|
|
DO_LOCK(flags);
|
|
setup_expected_interrupts(shpnt);
|
|
DO_UNLOCK(flags);
|
|
}
|
|
|
|
/*
|
|
* Reset the host (bus and controller)
|
|
*
|
|
*/
|
|
int aha152x_host_reset_host(struct Scsi_Host *shpnt)
|
|
{
|
|
DPRINTK(debug_eh, KERN_DEBUG "scsi%d: host reset\n", shpnt->host_no);
|
|
|
|
aha152x_bus_reset_host(shpnt);
|
|
|
|
DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting ports\n", shpnt->host_no);
|
|
reset_ports(shpnt);
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
/*
|
|
* Reset the host (bus and controller)
|
|
*
|
|
*/
|
|
static int aha152x_host_reset(Scsi_Cmnd *SCpnt)
|
|
{
|
|
return aha152x_host_reset_host(SCpnt->device->host);
|
|
}
|
|
|
|
/*
|
|
* Return the "logical geometry"
|
|
*
|
|
*/
|
|
static int aha152x_biosparam(struct scsi_device *sdev, struct block_device *bdev,
|
|
sector_t capacity, int *info_array)
|
|
{
|
|
struct Scsi_Host *shpnt = sdev->host;
|
|
|
|
/* try default translation */
|
|
info_array[0] = 64;
|
|
info_array[1] = 32;
|
|
info_array[2] = (unsigned long)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(bdev, capacity, info) < 0 ||
|
|
!((info[0] == 64 && info[1] == 32) || (info[0] == 255 && info[1] == 63))) {
|
|
if (EXT_TRANS) {
|
|
printk(KERN_NOTICE
|
|
"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] = (unsigned long)capacity / (255 * 63);
|
|
} else {
|
|
printk(KERN_NOTICE
|
|
"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 Documentation/scsi/aha152x.txt 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(KERN_NOTICE
|
|
"aha152x: current partition table is using extended translation.\n"
|
|
" using it also, although it's not explicitly enabled.\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Internal done function
|
|
*
|
|
*/
|
|
static void done(struct Scsi_Host *shpnt, int error)
|
|
{
|
|
if (CURRENT_SC) {
|
|
if(DONE_SC)
|
|
printk(ERR_LEAD "there's already a completed command %p - will cause abort\n", CMDINFO(CURRENT_SC), DONE_SC);
|
|
|
|
DONE_SC = CURRENT_SC;
|
|
CURRENT_SC = NULL;
|
|
DONE_SC->result = error;
|
|
} else
|
|
printk(KERN_ERR "aha152x: done() called outside of command\n");
|
|
}
|
|
|
|
static struct work_struct aha152x_tq;
|
|
|
|
/*
|
|
* Run service completions on the card with interrupts enabled.
|
|
*
|
|
*/
|
|
static void run(struct work_struct *work)
|
|
{
|
|
struct aha152x_hostdata *hd;
|
|
|
|
list_for_each_entry(hd, &aha152x_host_list, host_list) {
|
|
struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
|
|
|
|
is_complete(shost);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Interrupt handler
|
|
*
|
|
*/
|
|
static irqreturn_t intr(int irqno, void *dev_id)
|
|
{
|
|
struct Scsi_Host *shpnt = (struct Scsi_Host *)dev_id;
|
|
unsigned long flags;
|
|
unsigned char rev, dmacntrl0;
|
|
|
|
if (!shpnt) {
|
|
printk(KERN_ERR "aha152x: catched interrupt %d for unknown controller.\n", irqno);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
/*
|
|
* Read a couple of registers that are known to not be all 1's. If
|
|
* we read all 1's (-1), that means that either:
|
|
*
|
|
* a. The host adapter chip has gone bad, and we cannot control it,
|
|
* OR
|
|
* b. The host adapter is a PCMCIA card that has been ejected
|
|
*
|
|
* In either case, we cannot do anything with the host adapter at
|
|
* this point in time. So just ignore the interrupt and return.
|
|
* In the latter case, the interrupt might actually be meant for
|
|
* someone else sharing this IRQ, and that driver will handle it.
|
|
*/
|
|
rev = GETPORT(REV);
|
|
dmacntrl0 = GETPORT(DMACNTRL0);
|
|
if ((rev == 0xFF) && (dmacntrl0 == 0xFF))
|
|
return IRQ_NONE;
|
|
|
|
if( TESTLO(DMASTAT, INTSTAT) )
|
|
return IRQ_NONE;
|
|
|
|
/* no more interrupts from the controller, while we're busy.
|
|
INTEN is restored by the BH handler */
|
|
CLRBITS(DMACNTRL0, INTEN);
|
|
|
|
DO_LOCK(flags);
|
|
if( HOSTDATA(shpnt)->service==0 ) {
|
|
HOSTDATA(shpnt)->service=1;
|
|
|
|
/* Poke the BH handler */
|
|
INIT_WORK(&aha152x_tq, run);
|
|
schedule_work(&aha152x_tq);
|
|
}
|
|
DO_UNLOCK(flags);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/*
|
|
* busfree phase
|
|
* - handle completition/disconnection/error of current command
|
|
* - start selection for next command (if any)
|
|
*/
|
|
static void busfree_run(struct Scsi_Host *shpnt)
|
|
{
|
|
unsigned long flags;
|
|
#if defined(AHA152X_STAT)
|
|
int action=0;
|
|
#endif
|
|
|
|
SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
|
|
SETPORT(SXFRCTL0, CH1);
|
|
|
|
SETPORT(SSTAT1, CLRBUSFREE);
|
|
|
|
if(CURRENT_SC) {
|
|
#if defined(AHA152X_STAT)
|
|
action++;
|
|
#endif
|
|
CURRENT_SC->SCp.phase &= ~syncneg;
|
|
|
|
if(CURRENT_SC->SCp.phase & completed) {
|
|
/* target sent COMMAND COMPLETE */
|
|
done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_OK << 16));
|
|
|
|
} else if(CURRENT_SC->SCp.phase & aborted) {
|
|
DPRINTK(debug_eh, DEBUG_LEAD "ABORT sent\n", CMDINFO(CURRENT_SC));
|
|
done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_ABORT << 16));
|
|
|
|
} else if(CURRENT_SC->SCp.phase & resetted) {
|
|
DPRINTK(debug_eh, DEBUG_LEAD "BUS DEVICE RESET sent\n", CMDINFO(CURRENT_SC));
|
|
done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_RESET << 16));
|
|
|
|
} else if(CURRENT_SC->SCp.phase & disconnected) {
|
|
/* target sent DISCONNECT */
|
|
DPRINTK(debug_selection, DEBUG_LEAD "target disconnected at %d/%d\n",
|
|
CMDINFO(CURRENT_SC),
|
|
scsi_get_resid(CURRENT_SC),
|
|
scsi_bufflen(CURRENT_SC));
|
|
#if defined(AHA152X_STAT)
|
|
HOSTDATA(shpnt)->disconnections++;
|
|
#endif
|
|
append_SC(&DISCONNECTED_SC, CURRENT_SC);
|
|
CURRENT_SC->SCp.phase |= 1 << 16;
|
|
CURRENT_SC = NULL;
|
|
|
|
} else {
|
|
done(shpnt, DID_ERROR << 16);
|
|
}
|
|
#if defined(AHA152X_STAT)
|
|
} else {
|
|
HOSTDATA(shpnt)->busfree_without_old_command++;
|
|
#endif
|
|
}
|
|
|
|
DO_LOCK(flags);
|
|
|
|
if(DONE_SC) {
|
|
#if defined(AHA152X_STAT)
|
|
action++;
|
|
#endif
|
|
|
|
if(DONE_SC->SCp.phase & check_condition) {
|
|
struct scsi_cmnd *cmd = HOSTDATA(shpnt)->done_SC;
|
|
struct aha152x_scdata *sc = SCDATA(cmd);
|
|
|
|
#if 0
|
|
if(HOSTDATA(shpnt)->debug & debug_eh) {
|
|
printk(ERR_LEAD "received sense: ", CMDINFO(DONE_SC));
|
|
scsi_print_sense("bh", DONE_SC);
|
|
}
|
|
#endif
|
|
|
|
/* restore old command */
|
|
memcpy(cmd->cmnd, sc->aha_orig_cmnd, sizeof(cmd->cmnd));
|
|
cmd->cmd_len = sc->aha_orig_cmd_len;
|
|
scsi_set_resid(cmd, sc->aha_orig_resid);
|
|
|
|
cmd->SCp.Status = SAM_STAT_CHECK_CONDITION;
|
|
|
|
HOSTDATA(shpnt)->commands--;
|
|
if (!HOSTDATA(shpnt)->commands)
|
|
SETPORT(PORTA, 0); /* turn led off */
|
|
} else if(DONE_SC->SCp.Status==SAM_STAT_CHECK_CONDITION) {
|
|
#if defined(AHA152X_STAT)
|
|
HOSTDATA(shpnt)->busfree_with_check_condition++;
|
|
#endif
|
|
#if 0
|
|
DPRINTK(debug_eh, ERR_LEAD "CHECK CONDITION found\n", CMDINFO(DONE_SC));
|
|
#endif
|
|
|
|
if(!(DONE_SC->SCp.phase & not_issued)) {
|
|
struct aha152x_scdata *sc;
|
|
Scsi_Cmnd *ptr = DONE_SC;
|
|
DONE_SC=NULL;
|
|
#if 0
|
|
DPRINTK(debug_eh, ERR_LEAD "requesting sense\n", CMDINFO(ptr));
|
|
#endif
|
|
|
|
/* save old command */
|
|
sc = SCDATA(ptr);
|
|
/* It was allocated in aha152x_internal_queue? */
|
|
BUG_ON(!sc);
|
|
memcpy(sc->aha_orig_cmnd, ptr->cmnd,
|
|
sizeof(ptr->cmnd));
|
|
sc->aha_orig_cmd_len = ptr->cmd_len;
|
|
sc->aha_orig_resid = scsi_get_resid(ptr);
|
|
|
|
ptr->cmnd[0] = REQUEST_SENSE;
|
|
ptr->cmnd[1] = 0;
|
|
ptr->cmnd[2] = 0;
|
|
ptr->cmnd[3] = 0;
|
|
ptr->cmnd[4] = sizeof(ptr->sense_buffer);
|
|
ptr->cmnd[5] = 0;
|
|
ptr->cmd_len = 6;
|
|
|
|
DO_UNLOCK(flags);
|
|
aha152x_internal_queue(ptr, NULL, check_condition, ptr->scsi_done);
|
|
DO_LOCK(flags);
|
|
#if 0
|
|
} else {
|
|
DPRINTK(debug_eh, ERR_LEAD "command not issued - CHECK CONDITION ignored\n", CMDINFO(DONE_SC));
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if(DONE_SC && DONE_SC->scsi_done) {
|
|
#if defined(AHA152X_DEBUG)
|
|
int hostno=DONE_SC->device->host->host_no;
|
|
int id=DONE_SC->device->id & 0xf;
|
|
int lun=DONE_SC->device->lun & 0x7;
|
|
#endif
|
|
Scsi_Cmnd *ptr = DONE_SC;
|
|
DONE_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(ptr->scsi_done != reset_done) {
|
|
kfree(ptr->host_scribble);
|
|
ptr->host_scribble=NULL;
|
|
}
|
|
|
|
DO_UNLOCK(flags);
|
|
DPRINTK(debug_done, DEBUG_LEAD "calling scsi_done(%p)\n", hostno, id, lun, ptr);
|
|
ptr->scsi_done(ptr);
|
|
DPRINTK(debug_done, DEBUG_LEAD "scsi_done(%p) returned\n", hostno, id, lun, ptr);
|
|
DO_LOCK(flags);
|
|
}
|
|
|
|
DONE_SC=NULL;
|
|
#if defined(AHA152X_STAT)
|
|
} else {
|
|
HOSTDATA(shpnt)->busfree_without_done_command++;
|
|
#endif
|
|
}
|
|
|
|
if(ISSUE_SC)
|
|
CURRENT_SC = remove_first_SC(&ISSUE_SC);
|
|
|
|
DO_UNLOCK(flags);
|
|
|
|
if(CURRENT_SC) {
|
|
#if defined(AHA152X_STAT)
|
|
action++;
|
|
#endif
|
|
CURRENT_SC->SCp.phase |= selecting;
|
|
|
|
DPRINTK(debug_selection, DEBUG_LEAD "selecting target\n", CMDINFO(CURRENT_SC));
|
|
|
|
/* clear selection timeout */
|
|
SETPORT(SSTAT1, SELTO);
|
|
|
|
SETPORT(SCSIID, (shpnt->this_id << OID_) | CURRENT_SC->device->id);
|
|
SETPORT(SXFRCTL1, (PARITY ? ENSPCHK : 0 ) | ENSTIMER);
|
|
SETPORT(SCSISEQ, ENSELO | ENAUTOATNO | (DISCONNECTED_SC ? ENRESELI : 0));
|
|
} else {
|
|
#if defined(AHA152X_STAT)
|
|
HOSTDATA(shpnt)->busfree_without_new_command++;
|
|
#endif
|
|
SETPORT(SCSISEQ, DISCONNECTED_SC ? ENRESELI : 0);
|
|
}
|
|
|
|
#if defined(AHA152X_STAT)
|
|
if(!action)
|
|
HOSTDATA(shpnt)->busfree_without_any_action++;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Selection done (OUT)
|
|
* - queue IDENTIFY message and SDTR to selected target for message out
|
|
* (ATN asserted automagically via ENAUTOATNO in busfree())
|
|
*/
|
|
static void seldo_run(struct Scsi_Host *shpnt)
|
|
{
|
|
SETPORT(SCSISIG, 0);
|
|
SETPORT(SSTAT1, CLRBUSFREE);
|
|
SETPORT(SSTAT1, CLRPHASECHG);
|
|
|
|
CURRENT_SC->SCp.phase &= ~(selecting|not_issued);
|
|
|
|
SETPORT(SCSISEQ, 0);
|
|
|
|
if (TESTLO(SSTAT0, SELDO)) {
|
|
printk(ERR_LEAD "aha152x: passing bus free condition\n", CMDINFO(CURRENT_SC));
|
|
done(shpnt, DID_NO_CONNECT << 16);
|
|
return;
|
|
}
|
|
|
|
SETPORT(SSTAT0, CLRSELDO);
|
|
|
|
ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
|
|
|
|
if (CURRENT_SC->SCp.phase & aborting) {
|
|
ADDMSGO(ABORT);
|
|
} else if (CURRENT_SC->SCp.phase & resetting) {
|
|
ADDMSGO(BUS_DEVICE_RESET);
|
|
} else if (SYNCNEG==0 && SYNCHRONOUS) {
|
|
CURRENT_SC->SCp.phase |= syncneg;
|
|
MSGOLEN += spi_populate_sync_msg(&MSGO(MSGOLEN), 50, 8);
|
|
SYNCNEG=1; /* negotiation in progress */
|
|
}
|
|
|
|
SETRATE(SYNCRATE);
|
|
}
|
|
|
|
/*
|
|
* Selection timeout
|
|
* - return command to mid-level with failure cause
|
|
*
|
|
*/
|
|
static void selto_run(struct Scsi_Host *shpnt)
|
|
{
|
|
SETPORT(SCSISEQ, 0);
|
|
SETPORT(SSTAT1, CLRSELTIMO);
|
|
|
|
DPRINTK(debug_selection, DEBUG_LEAD "selection timeout\n", CMDINFO(CURRENT_SC));
|
|
|
|
if(!CURRENT_SC) {
|
|
DPRINTK(debug_selection, DEBUG_LEAD "!CURRENT_SC\n", CMDINFO(CURRENT_SC));
|
|
return;
|
|
}
|
|
|
|
CURRENT_SC->SCp.phase &= ~selecting;
|
|
|
|
if (CURRENT_SC->SCp.phase & aborted) {
|
|
DPRINTK(debug_selection, DEBUG_LEAD "aborted\n", CMDINFO(CURRENT_SC));
|
|
done(shpnt, DID_ABORT << 16);
|
|
} else if (TESTLO(SSTAT0, SELINGO)) {
|
|
DPRINTK(debug_selection, DEBUG_LEAD "arbitration not won\n", CMDINFO(CURRENT_SC));
|
|
done(shpnt, DID_BUS_BUSY << 16);
|
|
} else {
|
|
/* ARBITRATION won, but SELECTION failed */
|
|
DPRINTK(debug_selection, DEBUG_LEAD "selection failed\n", CMDINFO(CURRENT_SC));
|
|
done(shpnt, DID_NO_CONNECT << 16);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Selection in done
|
|
* - put current command back to issue queue
|
|
* (reconnection of a disconnected nexus instead
|
|
* of successful selection out)
|
|
*
|
|
*/
|
|
static void seldi_run(struct Scsi_Host *shpnt)
|
|
{
|
|
int selid;
|
|
int target;
|
|
unsigned long flags;
|
|
|
|
SETPORT(SCSISIG, 0);
|
|
SETPORT(SSTAT0, CLRSELDI);
|
|
SETPORT(SSTAT1, CLRBUSFREE);
|
|
SETPORT(SSTAT1, CLRPHASECHG);
|
|
|
|
if(CURRENT_SC) {
|
|
if(!(CURRENT_SC->SCp.phase & not_issued))
|
|
printk(ERR_LEAD "command should not have been issued yet\n", CMDINFO(CURRENT_SC));
|
|
|
|
DPRINTK(debug_selection, ERR_LEAD "command requeued - reselection\n", CMDINFO(CURRENT_SC));
|
|
|
|
DO_LOCK(flags);
|
|
append_SC(&ISSUE_SC, CURRENT_SC);
|
|
DO_UNLOCK(flags);
|
|
|
|
CURRENT_SC = NULL;
|
|
}
|
|
|
|
if(!DISCONNECTED_SC) {
|
|
DPRINTK(debug_selection, DEBUG_LEAD "unexpected SELDI ", CMDINFO(CURRENT_SC));
|
|
return;
|
|
}
|
|
|
|
RECONN_TARGET=-1;
|
|
|
|
selid = GETPORT(SELID) & ~(1 << shpnt->this_id);
|
|
|
|
if (selid==0) {
|
|
printk("aha152x%d: target id unknown (%02x)\n", HOSTNO, selid);
|
|
return;
|
|
}
|
|
|
|
for(target=7; !(selid & (1 << target)); target--)
|
|
;
|
|
|
|
if(selid & ~(1 << target)) {
|
|
printk("aha152x%d: multiple targets reconnected (%02x)\n",
|
|
HOSTNO, selid);
|
|
}
|
|
|
|
|
|
SETPORT(SCSIID, (shpnt->this_id << OID_) | target);
|
|
SETPORT(SCSISEQ, 0);
|
|
|
|
SETRATE(HOSTDATA(shpnt)->syncrate[target]);
|
|
|
|
RECONN_TARGET=target;
|
|
DPRINTK(debug_selection, DEBUG_LEAD "target %d reselected (%02x).\n", CMDINFO(CURRENT_SC), target, selid);
|
|
}
|
|
|
|
/*
|
|
* message in phase
|
|
* - handle initial message after reconnection to identify
|
|
* reconnecting nexus
|
|
* - queue command on DISCONNECTED_SC on DISCONNECT message
|
|
* - set completed flag on COMMAND COMPLETE
|
|
* (other completition code moved to busfree_run)
|
|
* - handle response to SDTR
|
|
* - clear synchronous transfer agreements on BUS RESET
|
|
*
|
|
* FIXME: what about SAVE POINTERS, RESTORE POINTERS?
|
|
*
|
|
*/
|
|
static void msgi_run(struct Scsi_Host *shpnt)
|
|
{
|
|
for(;;) {
|
|
int sstat1 = GETPORT(SSTAT1);
|
|
|
|
if(sstat1 & (PHASECHG|PHASEMIS|BUSFREE) || !(sstat1 & REQINIT))
|
|
return;
|
|
|
|
if(TESTLO(SSTAT0,SPIORDY)) {
|
|
DPRINTK(debug_msgi, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
|
|
return;
|
|
}
|
|
|
|
ADDMSGI(GETPORT(SCSIDAT));
|
|
|
|
#if defined(AHA152X_DEBUG)
|
|
if (HOSTDATA(shpnt)->debug & debug_msgi) {
|
|
printk(INFO_LEAD "inbound message %02x ", CMDINFO(CURRENT_SC), MSGI(0));
|
|
spi_print_msg(&MSGI(0));
|
|
printk("\n");
|
|
}
|
|
#endif
|
|
|
|
if(!CURRENT_SC) {
|
|
if(LASTSTATE!=seldi) {
|
|
printk(KERN_ERR "aha152x%d: message in w/o current command not after reselection\n", HOSTNO);
|
|
}
|
|
|
|
/*
|
|
* Handle reselection
|
|
*/
|
|
if(!(MSGI(0) & IDENTIFY_BASE)) {
|
|
printk(KERN_ERR "aha152x%d: target didn't identify after reselection\n", HOSTNO);
|
|
continue;
|
|
}
|
|
|
|
CURRENT_SC = remove_lun_SC(&DISCONNECTED_SC, RECONN_TARGET, MSGI(0) & 0x3f);
|
|
|
|
if (!CURRENT_SC) {
|
|
show_queues(shpnt);
|
|
printk(KERN_ERR "aha152x%d: no disconnected command for target %d/%d\n", HOSTNO, RECONN_TARGET, MSGI(0) & 0x3f);
|
|
continue;
|
|
}
|
|
|
|
DPRINTK(debug_msgi, DEBUG_LEAD "target reconnected\n", CMDINFO(CURRENT_SC));
|
|
|
|
CURRENT_SC->SCp.Message = MSGI(0);
|
|
CURRENT_SC->SCp.phase &= ~disconnected;
|
|
|
|
MSGILEN=0;
|
|
|
|
/* next message if any */
|
|
continue;
|
|
}
|
|
|
|
CURRENT_SC->SCp.Message = MSGI(0);
|
|
|
|
switch (MSGI(0)) {
|
|
case DISCONNECT:
|
|
if (!RECONNECT)
|
|
printk(WARN_LEAD "target was not allowed to disconnect\n", CMDINFO(CURRENT_SC));
|
|
|
|
CURRENT_SC->SCp.phase |= disconnected;
|
|
break;
|
|
|
|
case COMMAND_COMPLETE:
|
|
if(CURRENT_SC->SCp.phase & completed)
|
|
DPRINTK(debug_msgi, DEBUG_LEAD "again COMMAND COMPLETE\n", CMDINFO(CURRENT_SC));
|
|
|
|
CURRENT_SC->SCp.phase |= completed;
|
|
break;
|
|
|
|
case MESSAGE_REJECT:
|
|
if (SYNCNEG==1) {
|
|
printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC));
|
|
SYNCNEG=2; /* negotiation completed */
|
|
} else
|
|
printk(INFO_LEAD "inbound message (MESSAGE REJECT)\n", CMDINFO(CURRENT_SC));
|
|
break;
|
|
|
|
case SAVE_POINTERS:
|
|
break;
|
|
|
|
case RESTORE_POINTERS:
|
|
break;
|
|
|
|
case EXTENDED_MESSAGE:
|
|
if(MSGILEN<2 || MSGILEN<MSGI(1)+2) {
|
|
/* not yet completed */
|
|
continue;
|
|
}
|
|
|
|
switch (MSGI(2)) {
|
|
case EXTENDED_SDTR:
|
|
{
|
|
long ticks;
|
|
|
|
if (MSGI(1) != 3) {
|
|
printk(ERR_LEAD "SDTR message length!=3\n", CMDINFO(CURRENT_SC));
|
|
break;
|
|
}
|
|
|
|
if (!HOSTDATA(shpnt)->synchronous)
|
|
break;
|
|
|
|
printk(INFO_LEAD, CMDINFO(CURRENT_SC));
|
|
spi_print_msg(&MSGI(0));
|
|
printk("\n");
|
|
|
|
ticks = (MSGI(3) * 4 + 49) / 50;
|
|
|
|
if (syncneg) {
|
|
/* negotiation in progress */
|
|
if (ticks > 9 || MSGI(4) < 1 || MSGI(4) > 8) {
|
|
ADDMSGO(MESSAGE_REJECT);
|
|
printk(INFO_LEAD "received Synchronous Data Transfer Request invalid - rejected\n", CMDINFO(CURRENT_SC));
|
|
break;
|
|
}
|
|
|
|
SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
|
|
} else if (ticks <= 9 && MSGI(4) >= 1) {
|
|
ADDMSGO(EXTENDED_MESSAGE);
|
|
ADDMSGO(3);
|
|
ADDMSGO(EXTENDED_SDTR);
|
|
if (ticks < 4) {
|
|
ticks = 4;
|
|
ADDMSGO(50);
|
|
} else
|
|
ADDMSGO(MSGI(3));
|
|
|
|
if (MSGI(4) > 8)
|
|
MSGI(4) = 8;
|
|
|
|
ADDMSGO(MSGI(4));
|
|
|
|
SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
|
|
} else {
|
|
/* requested SDTR is too slow, do it asynchronously */
|
|
printk(INFO_LEAD "Synchronous Data Transfer Request too slow - Rejecting\n", CMDINFO(CURRENT_SC));
|
|
ADDMSGO(MESSAGE_REJECT);
|
|
}
|
|
|
|
SYNCNEG=2; /* negotiation completed */
|
|
SETRATE(SYNCRATE);
|
|
}
|
|
break;
|
|
|
|
case BUS_DEVICE_RESET:
|
|
{
|
|
int i;
|
|
|
|
for(i=0; i<8; i++) {
|
|
HOSTDATA(shpnt)->syncrate[i]=0;
|
|
HOSTDATA(shpnt)->syncneg[i]=0;
|
|
}
|
|
|
|
}
|
|
break;
|
|
|
|
case EXTENDED_MODIFY_DATA_POINTER:
|
|
case EXTENDED_EXTENDED_IDENTIFY:
|
|
case EXTENDED_WDTR:
|
|
default:
|
|
ADDMSGO(MESSAGE_REJECT);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
MSGILEN=0;
|
|
}
|
|
}
|
|
|
|
static void msgi_end(struct Scsi_Host *shpnt)
|
|
{
|
|
if(MSGILEN>0)
|
|
printk(WARN_LEAD "target left before message completed (%d)\n", CMDINFO(CURRENT_SC), MSGILEN);
|
|
|
|
if (MSGOLEN > 0 && !(GETPORT(SSTAT1) & BUSFREE)) {
|
|
DPRINTK(debug_msgi, DEBUG_LEAD "msgo pending\n", CMDINFO(CURRENT_SC));
|
|
SETPORT(SCSISIG, P_MSGI | SIG_ATNO);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* message out phase
|
|
*
|
|
*/
|
|
static void msgo_init(struct Scsi_Host *shpnt)
|
|
{
|
|
if(MSGOLEN==0) {
|
|
if((CURRENT_SC->SCp.phase & syncneg) && SYNCNEG==2 && SYNCRATE==0) {
|
|
ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
|
|
} else {
|
|
printk(INFO_LEAD "unexpected MESSAGE OUT phase; rejecting\n", CMDINFO(CURRENT_SC));
|
|
ADDMSGO(MESSAGE_REJECT);
|
|
}
|
|
}
|
|
|
|
#if defined(AHA152X_DEBUG)
|
|
if(HOSTDATA(shpnt)->debug & debug_msgo) {
|
|
int i;
|
|
|
|
printk(DEBUG_LEAD "messages( ", CMDINFO(CURRENT_SC));
|
|
for (i=0; i<MSGOLEN; i+=spi_print_msg(&MSGO(i)), printk(" "))
|
|
;
|
|
printk(")\n");
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* message out phase
|
|
*
|
|
*/
|
|
static void msgo_run(struct Scsi_Host *shpnt)
|
|
{
|
|
if(MSGO_I==MSGOLEN)
|
|
DPRINTK(debug_msgo, DEBUG_LEAD "messages all sent (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN);
|
|
|
|
while(MSGO_I<MSGOLEN) {
|
|
DPRINTK(debug_msgo, DEBUG_LEAD "message byte %02x (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO(MSGO_I), MSGO_I, MSGOLEN);
|
|
|
|
if(TESTLO(SSTAT0, SPIORDY)) {
|
|
DPRINTK(debug_msgo, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
|
|
return;
|
|
}
|
|
|
|
if (MSGO_I==MSGOLEN-1) {
|
|
/* Leave MESSAGE OUT after transfer */
|
|
SETPORT(SSTAT1, CLRATNO);
|
|
}
|
|
|
|
|
|
if (MSGO(MSGO_I) & IDENTIFY_BASE)
|
|
CURRENT_SC->SCp.phase |= identified;
|
|
|
|
if (MSGO(MSGO_I)==ABORT)
|
|
CURRENT_SC->SCp.phase |= aborted;
|
|
|
|
if (MSGO(MSGO_I)==BUS_DEVICE_RESET)
|
|
CURRENT_SC->SCp.phase |= resetted;
|
|
|
|
SETPORT(SCSIDAT, MSGO(MSGO_I++));
|
|
}
|
|
}
|
|
|
|
static void msgo_end(struct Scsi_Host *shpnt)
|
|
{
|
|
if(MSGO_I<MSGOLEN) {
|
|
printk(ERR_LEAD "message sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN);
|
|
if(SYNCNEG==1) {
|
|
printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC));
|
|
SYNCNEG=2;
|
|
}
|
|
}
|
|
|
|
MSGO_I = 0;
|
|
MSGOLEN = 0;
|
|
}
|
|
|
|
/*
|
|
* command phase
|
|
*
|
|
*/
|
|
static void cmd_init(struct Scsi_Host *shpnt)
|
|
{
|
|
if (CURRENT_SC->SCp.sent_command) {
|
|
printk(ERR_LEAD "command already sent\n", CMDINFO(CURRENT_SC));
|
|
done(shpnt, DID_ERROR << 16);
|
|
return;
|
|
}
|
|
|
|
#if defined(AHA152X_DEBUG)
|
|
if (HOSTDATA(shpnt)->debug & debug_cmd) {
|
|
printk(DEBUG_LEAD "cmd_init: ", CMDINFO(CURRENT_SC));
|
|
__scsi_print_command(CURRENT_SC->cmnd);
|
|
}
|
|
#endif
|
|
|
|
CMD_I=0;
|
|
}
|
|
|
|
/*
|
|
* command phase
|
|
*
|
|
*/
|
|
static void cmd_run(struct Scsi_Host *shpnt)
|
|
{
|
|
if(CMD_I==CURRENT_SC->cmd_len) {
|
|
DPRINTK(debug_cmd, DEBUG_LEAD "command already completely sent (%d/%d)", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len);
|
|
disp_ports(shpnt);
|
|
}
|
|
|
|
while(CMD_I<CURRENT_SC->cmd_len) {
|
|
DPRINTK(debug_cmd, DEBUG_LEAD "command byte %02x (%d/%d)\n", CMDINFO(CURRENT_SC), CURRENT_SC->cmnd[CMD_I], CMD_I, CURRENT_SC->cmd_len);
|
|
|
|
if(TESTLO(SSTAT0, SPIORDY)) {
|
|
DPRINTK(debug_cmd, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
|
|
return;
|
|
}
|
|
|
|
SETPORT(SCSIDAT, CURRENT_SC->cmnd[CMD_I++]);
|
|
}
|
|
}
|
|
|
|
static void cmd_end(struct Scsi_Host *shpnt)
|
|
{
|
|
if(CMD_I<CURRENT_SC->cmd_len)
|
|
printk(ERR_LEAD "command sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len);
|
|
else
|
|
CURRENT_SC->SCp.sent_command++;
|
|
}
|
|
|
|
/*
|
|
* status phase
|
|
*
|
|
*/
|
|
static void status_run(struct Scsi_Host *shpnt)
|
|
{
|
|
if(TESTLO(SSTAT0,SPIORDY)) {
|
|
DPRINTK(debug_status, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
|
|
return;
|
|
}
|
|
|
|
CURRENT_SC->SCp.Status = GETPORT(SCSIDAT);
|
|
|
|
#if defined(AHA152X_DEBUG)
|
|
if (HOSTDATA(shpnt)->debug & debug_status) {
|
|
printk(DEBUG_LEAD "inbound status %02x ", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.Status);
|
|
scsi_print_status(CURRENT_SC->SCp.Status);
|
|
printk("\n");
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* data in phase
|
|
*
|
|
*/
|
|
static void datai_init(struct Scsi_Host *shpnt)
|
|
{
|
|
SETPORT(DMACNTRL0, RSTFIFO);
|
|
SETPORT(DMACNTRL0, RSTFIFO|ENDMA);
|
|
|
|
SETPORT(SXFRCTL0, CH1|CLRSTCNT);
|
|
SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN);
|
|
|
|
SETPORT(SIMODE0, 0);
|
|
SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE);
|
|
|
|
DATA_LEN=0;
|
|
DPRINTK(debug_datai,
|
|
DEBUG_LEAD "datai_init: request_bufflen=%d resid=%d\n",
|
|
CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
|
|
scsi_get_resid(CURRENT_SC));
|
|
}
|
|
|
|
static void datai_run(struct Scsi_Host *shpnt)
|
|
{
|
|
unsigned long the_time;
|
|
int fifodata, data_count;
|
|
|
|
/*
|
|
* loop while the phase persists or the fifos are not empty
|
|
*
|
|
*/
|
|
while(TESTLO(DMASTAT, INTSTAT) || TESTLO(DMASTAT, DFIFOEMP) || TESTLO(SSTAT2, SEMPTY)) {
|
|
/* FIXME: maybe this should be done by setting up
|
|
* STCNT to trigger ENSWRAP interrupt, instead of
|
|
* polling for DFIFOFULL
|
|
*/
|
|
the_time=jiffies + 100*HZ;
|
|
while(TESTLO(DMASTAT, DFIFOFULL|INTSTAT) && time_before(jiffies,the_time))
|
|
barrier();
|
|
|
|
if(TESTLO(DMASTAT, DFIFOFULL|INTSTAT)) {
|
|
printk(ERR_LEAD "datai timeout", CMDINFO(CURRENT_SC));
|
|
disp_ports(shpnt);
|
|
break;
|
|
}
|
|
|
|
if(TESTHI(DMASTAT, DFIFOFULL)) {
|
|
fifodata = 128;
|
|
} else {
|
|
the_time=jiffies + 100*HZ;
|
|
while(TESTLO(SSTAT2, SEMPTY) && time_before(jiffies,the_time))
|
|
barrier();
|
|
|
|
if(TESTLO(SSTAT2, SEMPTY)) {
|
|
printk(ERR_LEAD "datai sempty timeout", CMDINFO(CURRENT_SC));
|
|
disp_ports(shpnt);
|
|
break;
|
|
}
|
|
|
|
fifodata = GETPORT(FIFOSTAT);
|
|
}
|
|
|
|
if(CURRENT_SC->SCp.this_residual>0) {
|
|
while(fifodata>0 && CURRENT_SC->SCp.this_residual>0) {
|
|
data_count = fifodata>CURRENT_SC->SCp.this_residual ?
|
|
CURRENT_SC->SCp.this_residual :
|
|
fifodata;
|
|
fifodata -= data_count;
|
|
|
|
if(data_count & 1) {
|
|
DPRINTK(debug_datai, DEBUG_LEAD "8bit\n", CMDINFO(CURRENT_SC));
|
|
SETPORT(DMACNTRL0, ENDMA|_8BIT);
|
|
*CURRENT_SC->SCp.ptr++ = GETPORT(DATAPORT);
|
|
CURRENT_SC->SCp.this_residual--;
|
|
DATA_LEN++;
|
|
SETPORT(DMACNTRL0, ENDMA);
|
|
}
|
|
|
|
if(data_count > 1) {
|
|
DPRINTK(debug_datai, DEBUG_LEAD "16bit(%d)\n", CMDINFO(CURRENT_SC), data_count);
|
|
data_count >>= 1;
|
|
insw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
|
|
CURRENT_SC->SCp.ptr += 2 * data_count;
|
|
CURRENT_SC->SCp.this_residual -= 2 * data_count;
|
|
DATA_LEN += 2 * data_count;
|
|
}
|
|
|
|
if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
|
|
/* advance to next buffer */
|
|
CURRENT_SC->SCp.buffers_residual--;
|
|
CURRENT_SC->SCp.buffer++;
|
|
CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer);
|
|
CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
|
|
}
|
|
}
|
|
} else if(fifodata>0) {
|
|
printk(ERR_LEAD "no buffers left for %d(%d) bytes (data overrun!?)\n", CMDINFO(CURRENT_SC), fifodata, GETPORT(FIFOSTAT));
|
|
SETPORT(DMACNTRL0, ENDMA|_8BIT);
|
|
while(fifodata>0) {
|
|
int data;
|
|
data=GETPORT(DATAPORT);
|
|
DPRINTK(debug_datai, DEBUG_LEAD "data=%02x\n", CMDINFO(CURRENT_SC), data);
|
|
fifodata--;
|
|
DATA_LEN++;
|
|
}
|
|
SETPORT(DMACNTRL0, ENDMA|_8BIT);
|
|
}
|
|
}
|
|
|
|
if(TESTLO(DMASTAT, INTSTAT) ||
|
|
TESTLO(DMASTAT, DFIFOEMP) ||
|
|
TESTLO(SSTAT2, SEMPTY) ||
|
|
GETPORT(FIFOSTAT)>0) {
|
|
/*
|
|
* something went wrong, if there's something left in the fifos
|
|
* or the phase didn't change
|
|
*/
|
|
printk(ERR_LEAD "fifos should be empty and phase should have changed\n", CMDINFO(CURRENT_SC));
|
|
disp_ports(shpnt);
|
|
}
|
|
|
|
if(DATA_LEN!=GETSTCNT()) {
|
|
printk(ERR_LEAD
|
|
"manual transfer count differs from automatic (count=%d;stcnt=%d;diff=%d;fifostat=%d)",
|
|
CMDINFO(CURRENT_SC), DATA_LEN, GETSTCNT(), GETSTCNT()-DATA_LEN, GETPORT(FIFOSTAT));
|
|
disp_ports(shpnt);
|
|
mdelay(10000);
|
|
}
|
|
}
|
|
|
|
static void datai_end(struct Scsi_Host *shpnt)
|
|
{
|
|
CMD_INC_RESID(CURRENT_SC, -GETSTCNT());
|
|
|
|
DPRINTK(debug_datai,
|
|
DEBUG_LEAD "datai_end: request_bufflen=%d resid=%d stcnt=%d\n",
|
|
CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
|
|
scsi_get_resid(CURRENT_SC), GETSTCNT());
|
|
|
|
SETPORT(SXFRCTL0, CH1|CLRSTCNT);
|
|
SETPORT(DMACNTRL0, 0);
|
|
}
|
|
|
|
/*
|
|
* data out phase
|
|
*
|
|
*/
|
|
static void datao_init(struct Scsi_Host *shpnt)
|
|
{
|
|
SETPORT(DMACNTRL0, WRITE_READ | RSTFIFO);
|
|
SETPORT(DMACNTRL0, WRITE_READ | ENDMA);
|
|
|
|
SETPORT(SXFRCTL0, CH1|CLRSTCNT);
|
|
SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN);
|
|
|
|
SETPORT(SIMODE0, 0);
|
|
SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE );
|
|
|
|
DATA_LEN = scsi_get_resid(CURRENT_SC);
|
|
|
|
DPRINTK(debug_datao,
|
|
DEBUG_LEAD "datao_init: request_bufflen=%d; resid=%d\n",
|
|
CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
|
|
scsi_get_resid(CURRENT_SC));
|
|
}
|
|
|
|
static void datao_run(struct Scsi_Host *shpnt)
|
|
{
|
|
unsigned long the_time;
|
|
int data_count;
|
|
|
|
/* until phase changes or all data sent */
|
|
while(TESTLO(DMASTAT, INTSTAT) && CURRENT_SC->SCp.this_residual>0) {
|
|
data_count = 128;
|
|
if(data_count > CURRENT_SC->SCp.this_residual)
|
|
data_count=CURRENT_SC->SCp.this_residual;
|
|
|
|
if(TESTLO(DMASTAT, DFIFOEMP)) {
|
|
printk(ERR_LEAD "datao fifo not empty (%d)", CMDINFO(CURRENT_SC), GETPORT(FIFOSTAT));
|
|
disp_ports(shpnt);
|
|
break;
|
|
}
|
|
|
|
if(data_count & 1) {
|
|
SETPORT(DMACNTRL0,WRITE_READ|ENDMA|_8BIT);
|
|
SETPORT(DATAPORT, *CURRENT_SC->SCp.ptr++);
|
|
CURRENT_SC->SCp.this_residual--;
|
|
CMD_INC_RESID(CURRENT_SC, -1);
|
|
SETPORT(DMACNTRL0,WRITE_READ|ENDMA);
|
|
}
|
|
|
|
if(data_count > 1) {
|
|
data_count >>= 1;
|
|
outsw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
|
|
CURRENT_SC->SCp.ptr += 2 * data_count;
|
|
CURRENT_SC->SCp.this_residual -= 2 * data_count;
|
|
CMD_INC_RESID(CURRENT_SC, -2 * data_count);
|
|
}
|
|
|
|
if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
|
|
/* advance to next buffer */
|
|
CURRENT_SC->SCp.buffers_residual--;
|
|
CURRENT_SC->SCp.buffer++;
|
|
CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer);
|
|
CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
|
|
}
|
|
|
|
the_time=jiffies + 100*HZ;
|
|
while(TESTLO(DMASTAT, DFIFOEMP|INTSTAT) && time_before(jiffies,the_time))
|
|
barrier();
|
|
|
|
if(TESTLO(DMASTAT, DFIFOEMP|INTSTAT)) {
|
|
printk(ERR_LEAD "dataout timeout", CMDINFO(CURRENT_SC));
|
|
disp_ports(shpnt);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void datao_end(struct Scsi_Host *shpnt)
|
|
{
|
|
if(TESTLO(DMASTAT, DFIFOEMP)) {
|
|
int data_count = (DATA_LEN - scsi_get_resid(CURRENT_SC)) -
|
|
GETSTCNT();
|
|
|
|
DPRINTK(debug_datao, DEBUG_LEAD "datao: %d bytes to resend (%d written, %d transferred)\n",
|
|
CMDINFO(CURRENT_SC),
|
|
data_count,
|
|
DATA_LEN - scsi_get_resid(CURRENT_SC),
|
|
GETSTCNT());
|
|
|
|
CMD_INC_RESID(CURRENT_SC, data_count);
|
|
|
|
data_count -= CURRENT_SC->SCp.ptr -
|
|
SG_ADDRESS(CURRENT_SC->SCp.buffer);
|
|
while(data_count>0) {
|
|
CURRENT_SC->SCp.buffer--;
|
|
CURRENT_SC->SCp.buffers_residual++;
|
|
data_count -= CURRENT_SC->SCp.buffer->length;
|
|
}
|
|
CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) -
|
|
data_count;
|
|
CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length +
|
|
data_count;
|
|
}
|
|
|
|
DPRINTK(debug_datao, DEBUG_LEAD "datao_end: request_bufflen=%d; resid=%d; stcnt=%d\n",
|
|
CMDINFO(CURRENT_SC),
|
|
scsi_bufflen(CURRENT_SC),
|
|
scsi_get_resid(CURRENT_SC),
|
|
GETSTCNT());
|
|
|
|
SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
|
|
SETPORT(SXFRCTL0, CH1);
|
|
|
|
SETPORT(DMACNTRL0, 0);
|
|
}
|
|
|
|
/*
|
|
* figure out what state we're in
|
|
*
|
|
*/
|
|
static int update_state(struct Scsi_Host *shpnt)
|
|
{
|
|
int dataphase=0;
|
|
unsigned int stat0 = GETPORT(SSTAT0);
|
|
unsigned int stat1 = GETPORT(SSTAT1);
|
|
|
|
PREVSTATE = STATE;
|
|
STATE=unknown;
|
|
|
|
if(stat1 & SCSIRSTI) {
|
|
STATE=rsti;
|
|
SETPORT(SCSISEQ,0);
|
|
SETPORT(SSTAT1,SCSIRSTI);
|
|
} else if(stat0 & SELDI && PREVSTATE==busfree) {
|
|
STATE=seldi;
|
|
} else if(stat0 & SELDO && CURRENT_SC && (CURRENT_SC->SCp.phase & selecting)) {
|
|
STATE=seldo;
|
|
} else if(stat1 & SELTO) {
|
|
STATE=selto;
|
|
} else if(stat1 & BUSFREE) {
|
|
STATE=busfree;
|
|
SETPORT(SSTAT1,BUSFREE);
|
|
} else if(stat1 & SCSIPERR) {
|
|
STATE=parerr;
|
|
SETPORT(SSTAT1,SCSIPERR);
|
|
} else if(stat1 & REQINIT) {
|
|
switch(GETPORT(SCSISIG) & P_MASK) {
|
|
case P_MSGI: STATE=msgi; break;
|
|
case P_MSGO: STATE=msgo; break;
|
|
case P_DATAO: STATE=datao; break;
|
|
case P_DATAI: STATE=datai; break;
|
|
case P_STATUS: STATE=status; break;
|
|
case P_CMD: STATE=cmd; break;
|
|
}
|
|
dataphase=1;
|
|
}
|
|
|
|
if((stat0 & SELDI) && STATE!=seldi && !dataphase) {
|
|
printk(INFO_LEAD "reselection missed?", CMDINFO(CURRENT_SC));
|
|
disp_ports(shpnt);
|
|
}
|
|
|
|
if(STATE!=PREVSTATE) {
|
|
LASTSTATE=PREVSTATE;
|
|
}
|
|
|
|
return dataphase;
|
|
}
|
|
|
|
/*
|
|
* handle parity error
|
|
*
|
|
* FIXME: in which phase?
|
|
*
|
|
*/
|
|
static void parerr_run(struct Scsi_Host *shpnt)
|
|
{
|
|
printk(ERR_LEAD "parity error\n", CMDINFO(CURRENT_SC));
|
|
done(shpnt, DID_PARITY << 16);
|
|
}
|
|
|
|
/*
|
|
* handle reset in
|
|
*
|
|
*/
|
|
static void rsti_run(struct Scsi_Host *shpnt)
|
|
{
|
|
Scsi_Cmnd *ptr;
|
|
|
|
printk(KERN_NOTICE "aha152x%d: scsi reset in\n", HOSTNO);
|
|
|
|
ptr=DISCONNECTED_SC;
|
|
while(ptr) {
|
|
Scsi_Cmnd *next = SCNEXT(ptr);
|
|
|
|
if (!ptr->device->soft_reset) {
|
|
remove_SC(&DISCONNECTED_SC, ptr);
|
|
|
|
kfree(ptr->host_scribble);
|
|
ptr->host_scribble=NULL;
|
|
|
|
ptr->result = DID_RESET << 16;
|
|
ptr->scsi_done(ptr);
|
|
}
|
|
|
|
ptr = next;
|
|
}
|
|
|
|
if(CURRENT_SC && !CURRENT_SC->device->soft_reset)
|
|
done(shpnt, DID_RESET << 16 );
|
|
}
|
|
|
|
|
|
/*
|
|
* bottom-half handler
|
|
*
|
|
*/
|
|
static void is_complete(struct Scsi_Host *shpnt)
|
|
{
|
|
int dataphase;
|
|
unsigned long flags;
|
|
int pending;
|
|
|
|
if(!shpnt)
|
|
return;
|
|
|
|
DO_LOCK(flags);
|
|
|
|
if( HOSTDATA(shpnt)->service==0 ) {
|
|
DO_UNLOCK(flags);
|
|
return;
|
|
}
|
|
|
|
HOSTDATA(shpnt)->service = 0;
|
|
|
|
if(HOSTDATA(shpnt)->in_intr) {
|
|
DO_UNLOCK(flags);
|
|
/* aha152x_error never returns.. */
|
|
aha152x_error(shpnt, "bottom-half already running!?");
|
|
}
|
|
HOSTDATA(shpnt)->in_intr++;
|
|
|
|
/*
|
|
* loop while there are interrupt conditions pending
|
|
*
|
|
*/
|
|
do {
|
|
unsigned long start = jiffies;
|
|
DO_UNLOCK(flags);
|
|
|
|
dataphase=update_state(shpnt);
|
|
|
|
DPRINTK(debug_phases, LEAD "start %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name);
|
|
|
|
/*
|
|
* end previous state
|
|
*
|
|
*/
|
|
if(PREVSTATE!=STATE && states[PREVSTATE].end)
|
|
states[PREVSTATE].end(shpnt);
|
|
|
|
/*
|
|
* disable SPIO mode if previous phase used it
|
|
* and this one doesn't
|
|
*
|
|
*/
|
|
if(states[PREVSTATE].spio && !states[STATE].spio) {
|
|
SETPORT(SXFRCTL0, CH1);
|
|
SETPORT(DMACNTRL0, 0);
|
|
if(CURRENT_SC)
|
|
CURRENT_SC->SCp.phase &= ~spiordy;
|
|
}
|
|
|
|
/*
|
|
* accept current dataphase phase
|
|
*
|
|
*/
|
|
if(dataphase) {
|
|
SETPORT(SSTAT0, REQINIT);
|
|
SETPORT(SCSISIG, GETPORT(SCSISIG) & P_MASK);
|
|
SETPORT(SSTAT1, PHASECHG);
|
|
}
|
|
|
|
/*
|
|
* enable SPIO mode if previous didn't use it
|
|
* and this one does
|
|
*
|
|
*/
|
|
if(!states[PREVSTATE].spio && states[STATE].spio) {
|
|
SETPORT(DMACNTRL0, 0);
|
|
SETPORT(SXFRCTL0, CH1|SPIOEN);
|
|
if(CURRENT_SC)
|
|
CURRENT_SC->SCp.phase |= spiordy;
|
|
}
|
|
|
|
/*
|
|
* initialize for new state
|
|
*
|
|
*/
|
|
if(PREVSTATE!=STATE && states[STATE].init)
|
|
states[STATE].init(shpnt);
|
|
|
|
/*
|
|
* handle current state
|
|
*
|
|
*/
|
|
if(states[STATE].run)
|
|
states[STATE].run(shpnt);
|
|
else
|
|
printk(ERR_LEAD "unexpected state (%x)\n", CMDINFO(CURRENT_SC), STATE);
|
|
|
|
/*
|
|
* setup controller to interrupt on
|
|
* the next expected condition and
|
|
* loop if it's already there
|
|
*
|
|
*/
|
|
DO_LOCK(flags);
|
|
pending=setup_expected_interrupts(shpnt);
|
|
#if defined(AHA152X_STAT)
|
|
HOSTDATA(shpnt)->count[STATE]++;
|
|
if(PREVSTATE!=STATE)
|
|
HOSTDATA(shpnt)->count_trans[STATE]++;
|
|
HOSTDATA(shpnt)->time[STATE] += jiffies-start;
|
|
#endif
|
|
|
|
DPRINTK(debug_phases, LEAD "end %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name);
|
|
} while(pending);
|
|
|
|
/*
|
|
* enable interrupts and leave bottom-half
|
|
*
|
|
*/
|
|
HOSTDATA(shpnt)->in_intr--;
|
|
SETBITS(DMACNTRL0, INTEN);
|
|
DO_UNLOCK(flags);
|
|
}
|
|
|
|
|
|
/*
|
|
* Dump the current driver status and panic
|
|
*/
|
|
static void aha152x_error(struct Scsi_Host *shpnt, char *msg)
|
|
{
|
|
printk(KERN_EMERG "\naha152x%d: %s\n", HOSTNO, msg);
|
|
show_queues(shpnt);
|
|
panic("aha152x panic\n");
|
|
}
|
|
|
|
/*
|
|
* Display registers of AIC-6260
|
|
*/
|
|
static void disp_ports(struct Scsi_Host *shpnt)
|
|
{
|
|
#if defined(AHA152X_DEBUG)
|
|
int s;
|
|
|
|
printk("\n%s: %s(%s) ",
|
|
CURRENT_SC ? "busy" : "waiting",
|
|
states[STATE].name,
|
|
states[PREVSTATE].name);
|
|
|
|
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("*invalid*");
|
|
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 & SIG_ATNI)
|
|
printk("ATNI ");
|
|
if (s & SIG_SELI)
|
|
printk("SELI ");
|
|
if (s & SIG_BSYI)
|
|
printk("BSYI ");
|
|
if (s & SIG_REQI)
|
|
printk("REQI ");
|
|
if (s & SIG_ACKI)
|
|
printk("ACKI ");
|
|
printk("); ");
|
|
|
|
printk("SELID (%02x), ", GETPORT(SELID));
|
|
|
|
printk("STCNT (%d), ", GETSTCNT());
|
|
|
|
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(")\n");
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* display enabled interrupts
|
|
*/
|
|
static void disp_enintr(struct Scsi_Host *shpnt)
|
|
{
|
|
int s;
|
|
|
|
printk(KERN_DEBUG "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");
|
|
}
|
|
|
|
/*
|
|
* Show the command data of a command
|
|
*/
|
|
static void show_command(Scsi_Cmnd *ptr)
|
|
{
|
|
scmd_printk(KERN_DEBUG, ptr, "%p: cmnd=(", ptr);
|
|
|
|
__scsi_print_command(ptr->cmnd);
|
|
|
|
printk(KERN_DEBUG "); request_bufflen=%d; resid=%d; phase |",
|
|
scsi_bufflen(ptr), scsi_get_resid(ptr));
|
|
|
|
if (ptr->SCp.phase & not_issued)
|
|
printk("not issued|");
|
|
if (ptr->SCp.phase & selecting)
|
|
printk("selecting|");
|
|
if (ptr->SCp.phase & identified)
|
|
printk("identified|");
|
|
if (ptr->SCp.phase & disconnected)
|
|
printk("disconnected|");
|
|
if (ptr->SCp.phase & completed)
|
|
printk("completed|");
|
|
if (ptr->SCp.phase & spiordy)
|
|
printk("spiordy|");
|
|
if (ptr->SCp.phase & syncneg)
|
|
printk("syncneg|");
|
|
if (ptr->SCp.phase & aborted)
|
|
printk("aborted|");
|
|
if (ptr->SCp.phase & resetted)
|
|
printk("resetted|");
|
|
if( SCDATA(ptr) ) {
|
|
printk("; next=0x%p\n", SCNEXT(ptr));
|
|
} else {
|
|
printk("; next=(host scribble NULL)\n");
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Dump the queued data
|
|
*/
|
|
static void show_queues(struct Scsi_Host *shpnt)
|
|
{
|
|
Scsi_Cmnd *ptr;
|
|
unsigned long flags;
|
|
|
|
DO_LOCK(flags);
|
|
printk(KERN_DEBUG "\nqueue status:\nissue_SC:\n");
|
|
for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
|
|
show_command(ptr);
|
|
DO_UNLOCK(flags);
|
|
|
|
printk(KERN_DEBUG "current_SC:\n");
|
|
if (CURRENT_SC)
|
|
show_command(CURRENT_SC);
|
|
else
|
|
printk(KERN_DEBUG "none\n");
|
|
|
|
printk(KERN_DEBUG "disconnected_SC:\n");
|
|
for (ptr = DISCONNECTED_SC; ptr; ptr = SCDATA(ptr) ? SCNEXT(ptr) : NULL)
|
|
show_command(ptr);
|
|
|
|
disp_ports(shpnt);
|
|
disp_enintr(shpnt);
|
|
}
|
|
|
|
#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->device->id, ptr->device->lun);
|
|
|
|
for (i = 0; i < COMMAND_SIZE(ptr->cmnd[0]); i++)
|
|
SPRINTF("0x%02x ", ptr->cmnd[i]);
|
|
|
|
SPRINTF("); resid=%d; residual=%d; buffers=%d; phase |",
|
|
scsi_get_resid(ptr), ptr->SCp.this_residual,
|
|
ptr->SCp.buffers_residual);
|
|
|
|
if (ptr->SCp.phase & not_issued)
|
|
SPRINTF("not issued|");
|
|
if (ptr->SCp.phase & selecting)
|
|
SPRINTF("selecting|");
|
|
if (ptr->SCp.phase & disconnected)
|
|
SPRINTF("disconnected|");
|
|
if (ptr->SCp.phase & aborted)
|
|
SPRINTF("aborted|");
|
|
if (ptr->SCp.phase & identified)
|
|
SPRINTF("identified|");
|
|
if (ptr->SCp.phase & completed)
|
|
SPRINTF("completed|");
|
|
if (ptr->SCp.phase & spiordy)
|
|
SPRINTF("spiordy|");
|
|
if (ptr->SCp.phase & syncneg)
|
|
SPRINTF("syncneg|");
|
|
SPRINTF("; next=0x%p\n", SCNEXT(ptr));
|
|
|
|
return (pos - start);
|
|
}
|
|
|
|
static int get_ports(struct Scsi_Host *shpnt, char *pos)
|
|
{
|
|
char *start = pos;
|
|
int s;
|
|
|
|
SPRINTF("\n%s: %s(%s) ", CURRENT_SC ? "on bus" : "waiting", states[STATE].name, states[PREVSTATE].name);
|
|
|
|
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("*invalid*");
|
|
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 & SIG_ATNI)
|
|
SPRINTF("ATNI ");
|
|
if (s & SIG_SELI)
|
|
SPRINTF("SELI ");
|
|
if (s & SIG_BSYI)
|
|
SPRINTF("BSYI ");
|
|
if (s & SIG_REQI)
|
|
SPRINTF("REQI ");
|
|
if (s & SIG_ACKI)
|
|
SPRINTF("ACKI ");
|
|
SPRINTF("); ");
|
|
|
|
SPRINTF("SELID(%02x), ", GETPORT(SELID));
|
|
|
|
SPRINTF("STCNT(%d), ", GETSTCNT());
|
|
|
|
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");
|
|
|
|
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);
|
|
}
|
|
|
|
static int aha152x_set_info(char *buffer, int length, struct Scsi_Host *shpnt)
|
|
{
|
|
if(!shpnt || !buffer || length<8 || strncmp("aha152x ", buffer, 8)!=0)
|
|
return -EINVAL;
|
|
|
|
#if defined(AHA152X_DEBUG)
|
|
if(length>14 && strncmp("debug ", buffer+8, 6)==0) {
|
|
int debug = HOSTDATA(shpnt)->debug;
|
|
|
|
HOSTDATA(shpnt)->debug = simple_strtoul(buffer+14, NULL, 0);
|
|
|
|
printk(KERN_INFO "aha152x%d: debugging options set to 0x%04x (were 0x%04x)\n", HOSTNO, HOSTDATA(shpnt)->debug, debug);
|
|
} else
|
|
#endif
|
|
#if defined(AHA152X_STAT)
|
|
if(length>13 && strncmp("reset", buffer+8, 5)==0) {
|
|
int i;
|
|
|
|
HOSTDATA(shpnt)->total_commands=0;
|
|
HOSTDATA(shpnt)->disconnections=0;
|
|
HOSTDATA(shpnt)->busfree_without_any_action=0;
|
|
HOSTDATA(shpnt)->busfree_without_old_command=0;
|
|
HOSTDATA(shpnt)->busfree_without_new_command=0;
|
|
HOSTDATA(shpnt)->busfree_without_done_command=0;
|
|
HOSTDATA(shpnt)->busfree_with_check_condition=0;
|
|
for (i = idle; i<maxstate; i++) {
|
|
HOSTDATA(shpnt)->count[i]=0;
|
|
HOSTDATA(shpnt)->count_trans[i]=0;
|
|
HOSTDATA(shpnt)->time[i]=0;
|
|
}
|
|
|
|
printk(KERN_INFO "aha152x%d: stats reseted.\n", HOSTNO);
|
|
|
|
} else
|
|
#endif
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
|
|
return length;
|
|
}
|
|
|
|
#undef SPRINTF
|
|
#define SPRINTF(args...) \
|
|
do { if(pos < buffer + length) pos += sprintf(pos, ## args); } while(0)
|
|
|
|
static int aha152x_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start,
|
|
off_t offset, int length, int inout)
|
|
{
|
|
int i;
|
|
char *pos = buffer;
|
|
Scsi_Cmnd *ptr;
|
|
unsigned long flags;
|
|
int thislength;
|
|
|
|
DPRINTK(debug_procinfo,
|
|
KERN_DEBUG "aha152x_proc_info: buffer=%p offset=%ld length=%d hostno=%d inout=%d\n",
|
|
buffer, offset, length, shpnt->host_no, inout);
|
|
|
|
|
|
if (inout)
|
|
return aha152x_set_info(buffer, length, shpnt);
|
|
|
|
SPRINTF(AHA152X_REVID "\n");
|
|
|
|
SPRINTF("ioports 0x%04lx to 0x%04lx\n",
|
|
shpnt->io_port, shpnt->io_port + shpnt->n_io_port - 1);
|
|
SPRINTF("interrupt 0x%02x\n", shpnt->irq);
|
|
SPRINTF("disconnection/reconnection %s\n",
|
|
RECONNECT ? "enabled" : "disabled");
|
|
SPRINTF("parity checking %s\n",
|
|
PARITY ? "enabled" : "disabled");
|
|
SPRINTF("synchronous transfers %s\n",
|
|
SYNCHRONOUS ? "enabled" : "disabled");
|
|
SPRINTF("%d commands currently queued\n", HOSTDATA(shpnt)->commands);
|
|
|
|
if(SYNCHRONOUS) {
|
|
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);
|
|
}
|
|
#if defined(AHA152X_DEBUG)
|
|
#define PDEBUG(flags,txt) \
|
|
if(HOSTDATA(shpnt)->debug & flags) SPRINTF("(%s) ", txt);
|
|
|
|
SPRINTF("enabled debugging options: ");
|
|
|
|
PDEBUG(debug_procinfo, "procinfo");
|
|
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_eh, "eh");
|
|
PDEBUG(debug_locking, "locks");
|
|
PDEBUG(debug_phases, "phases");
|
|
|
|
SPRINTF("\n");
|
|
#endif
|
|
|
|
SPRINTF("\nqueue status:\n");
|
|
DO_LOCK(flags);
|
|
if (ISSUE_SC) {
|
|
SPRINTF("not yet issued commands:\n");
|
|
for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
|
|
pos += get_command(pos, ptr);
|
|
} else
|
|
SPRINTF("no not yet issued commands\n");
|
|
DO_UNLOCK(flags);
|
|
|
|
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 = SCNEXT(ptr))
|
|
pos += get_command(pos, ptr);
|
|
} else
|
|
SPRINTF("no disconnected commands\n");
|
|
|
|
pos += get_ports(shpnt, pos);
|
|
|
|
#if defined(AHA152X_STAT)
|
|
SPRINTF("statistics:\n"
|
|
"total commands: %d\n"
|
|
"disconnections: %d\n"
|
|
"busfree with check condition: %d\n"
|
|
"busfree without old command: %d\n"
|
|
"busfree without new command: %d\n"
|
|
"busfree without done command: %d\n"
|
|
"busfree without any action: %d\n"
|
|
"state "
|
|
"transitions "
|
|
"count "
|
|
"time\n",
|
|
HOSTDATA(shpnt)->total_commands,
|
|
HOSTDATA(shpnt)->disconnections,
|
|
HOSTDATA(shpnt)->busfree_with_check_condition,
|
|
HOSTDATA(shpnt)->busfree_without_old_command,
|
|
HOSTDATA(shpnt)->busfree_without_new_command,
|
|
HOSTDATA(shpnt)->busfree_without_done_command,
|
|
HOSTDATA(shpnt)->busfree_without_any_action);
|
|
for(i=0; i<maxstate; i++) {
|
|
SPRINTF("%-10s %-12d %-12d %-12ld\n",
|
|
states[i].name,
|
|
HOSTDATA(shpnt)->count_trans[i],
|
|
HOSTDATA(shpnt)->count[i],
|
|
HOSTDATA(shpnt)->time[i]);
|
|
}
|
|
#endif
|
|
|
|
DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: pos=%p\n", pos);
|
|
|
|
thislength = pos - (buffer + offset);
|
|
DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: length=%d thislength=%d\n", length, thislength);
|
|
|
|
if(thislength<0) {
|
|
DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: output too short\n");
|
|
*start = NULL;
|
|
return 0;
|
|
}
|
|
|
|
thislength = thislength<length ? thislength : length;
|
|
|
|
DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: return %d\n", thislength);
|
|
|
|
*start = buffer + offset;
|
|
return thislength < length ? thislength : length;
|
|
}
|
|
|
|
static int aha152x_adjust_queue(struct scsi_device *device)
|
|
{
|
|
blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH);
|
|
return 0;
|
|
}
|
|
|
|
static struct scsi_host_template aha152x_driver_template = {
|
|
.module = THIS_MODULE,
|
|
.name = AHA152X_REVID,
|
|
.proc_name = "aha152x",
|
|
.proc_info = aha152x_proc_info,
|
|
.queuecommand = aha152x_queue,
|
|
.eh_abort_handler = aha152x_abort,
|
|
.eh_device_reset_handler = aha152x_device_reset,
|
|
.eh_bus_reset_handler = aha152x_bus_reset,
|
|
.eh_host_reset_handler = aha152x_host_reset,
|
|
.bios_param = aha152x_biosparam,
|
|
.can_queue = 1,
|
|
.this_id = 7,
|
|
.sg_tablesize = SG_ALL,
|
|
.cmd_per_lun = 1,
|
|
.use_clustering = DISABLE_CLUSTERING,
|
|
.slave_alloc = aha152x_adjust_queue,
|
|
};
|
|
|
|
#if !defined(PCMCIA)
|
|
static int setup_count;
|
|
static struct aha152x_setup setup[2];
|
|
|
|
/* possible i/o addresses for the AIC-6260; default first */
|
|
static unsigned short ports[] = { 0x340, 0x140 };
|
|
|
|
#if !defined(SKIP_BIOSTEST)
|
|
/* possible locations for the Adaptec BIOS; defaults first */
|
|
static unsigned int addresses[] =
|
|
{
|
|
0xdc000, /* default first */
|
|
0xc8000,
|
|
0xcc000,
|
|
0xd0000,
|
|
0xd4000,
|
|
0xd8000,
|
|
0xe0000,
|
|
0xeb800, /* VTech Platinum SMP */
|
|
0xf0000,
|
|
};
|
|
|
|
/* 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 {
|
|
unsigned char *signature;
|
|
int sig_offset;
|
|
int sig_length;
|
|
} signatures[] =
|
|
{
|
|
{ "Adaptec AHA-1520 BIOS", 0x102e, 21 },
|
|
/* Adaptec 152x */
|
|
{ "Adaptec AHA-1520B", 0x000b, 17 },
|
|
/* Adaptec 152x rev B */
|
|
{ "Adaptec AHA-1520B", 0x0026, 17 },
|
|
/* Iomega Jaz Jet ISA (AIC6370Q) */
|
|
{ "Adaptec ASW-B626 BIOS", 0x1029, 21 },
|
|
/* on-board controller */
|
|
{ "Adaptec BIOS: ASW-B626", 0x000f, 22 },
|
|
/* on-board controller */
|
|
{ "Adaptec ASW-B626 S2", 0x2e6c, 19 },
|
|
/* on-board controller */
|
|
{ "Adaptec BIOS:AIC-6360", 0x000c, 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", 0x000c, 21 },
|
|
/* Adaptec 282x */
|
|
{ "Adaptec IBM Dock II SCSI", 0x2edd, 24 },
|
|
/* IBM Thinkpad Dock II */
|
|
{ "Adaptec BIOS:AHA-1532P", 0x001c, 22 },
|
|
/* IBM Thinkpad Dock II SCSI */
|
|
{ "DTC3520A Host Adapter BIOS", 0x318a, 26 },
|
|
/* DTC 3520A ISA SCSI */
|
|
};
|
|
#endif /* !SKIP_BIOSTEST */
|
|
|
|
/*
|
|
* Test, if port_base is valid.
|
|
*
|
|
*/
|
|
static int aha152x_porttest(int io_port)
|
|
{
|
|
int i;
|
|
|
|
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);
|
|
}
|
|
|
|
static int tc1550_porttest(int io_port)
|
|
{
|
|
int i;
|
|
|
|
SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */
|
|
for (i = 0; i < 16; i++)
|
|
SETPORT(io_port + O_STACK, i);
|
|
|
|
SETPORT(io_port + O_TC_DMACNTRL1, 0); /* reset stack pointer */
|
|
for (i = 0; i < 16 && GETPORT(io_port + O_TC_STACK) == i; i++)
|
|
;
|
|
|
|
return (i == 16);
|
|
}
|
|
|
|
|
|
static int checksetup(struct aha152x_setup *setup)
|
|
{
|
|
int i;
|
|
for (i = 0; i < ARRAY_SIZE(ports) && (setup->io_port != ports[i]); i++)
|
|
;
|
|
|
|
if (i == ARRAY_SIZE(ports))
|
|
return 0;
|
|
|
|
if ( request_region(setup->io_port, IO_RANGE, "aha152x")==0 ) {
|
|
printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup->io_port);
|
|
return 0;
|
|
}
|
|
|
|
if( aha152x_porttest(setup->io_port) ) {
|
|
setup->tc1550=0;
|
|
} else if( tc1550_porttest(setup->io_port) ) {
|
|
setup->tc1550=1;
|
|
} else {
|
|
release_region(setup->io_port, IO_RANGE);
|
|
return 0;
|
|
}
|
|
|
|
release_region(setup->io_port, IO_RANGE);
|
|
|
|
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;
|
|
}
|
|
|
|
|
|
static int __init aha152x_init(void)
|
|
{
|
|
int i, j, ok;
|
|
#if defined(AUTOCONF)
|
|
aha152x_config conf;
|
|
#endif
|
|
#ifdef __ISAPNP__
|
|
struct pnp_dev *dev=NULL, *pnpdev[2] = {NULL, NULL};
|
|
#endif
|
|
|
|
if ( setup_count ) {
|
|
printk(KERN_INFO "aha152x: processing commandline: ");
|
|
|
|
for (i = 0; i<setup_count; i++) {
|
|
if (!checksetup(&setup[i])) {
|
|
printk(KERN_ERR "\naha152x: %s\n", setup[i].conf);
|
|
printk(KERN_ERR "aha152x: invalid line\n");
|
|
}
|
|
}
|
|
printk("ok\n");
|
|
}
|
|
|
|
#if defined(SETUP0)
|
|
if (setup_count < ARRAY_SIZE(setup)) {
|
|
struct aha152x_setup override = SETUP0;
|
|
|
|
if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
|
|
if (!checksetup(&override)) {
|
|
printk(KERN_ERR "\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
|
|
|
|
#if defined(SETUP1)
|
|
if (setup_count < ARRAY_SIZE(setup)) {
|
|
struct aha152x_setup override = SETUP1;
|
|
|
|
if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
|
|
if (!checksetup(&override)) {
|
|
printk(KERN_ERR "\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<ARRAY_SIZE(setup) && (aha152x[0]!=0 || io[0]!=0 || irq[0]!=0)) {
|
|
if(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];
|
|
#if defined(AHA152X_DEBUG)
|
|
setup[setup_count].debug = aha152x[8];
|
|
#endif
|
|
} else if(io[0]!=0 || irq[0]!=0) {
|
|
if(io[0]!=0) setup[setup_count].io_port = io[0];
|
|
if(irq[0]!=0) setup[setup_count].irq = irq[0];
|
|
|
|
setup[setup_count].scsiid = scsiid[0];
|
|
setup[setup_count].reconnect = reconnect[0];
|
|
setup[setup_count].parity = parity[0];
|
|
setup[setup_count].synchronous = sync[0];
|
|
setup[setup_count].delay = delay[0];
|
|
setup[setup_count].ext_trans = exttrans[0];
|
|
#if defined(AHA152X_DEBUG)
|
|
setup[setup_count].debug = debug[0];
|
|
#endif
|
|
}
|
|
|
|
if (checksetup(&setup[setup_count]))
|
|
setup_count++;
|
|
else
|
|
printk(KERN_ERR "aha152x: invalid module params io=0x%x, irq=%d,scsiid=%d,reconnect=%d,parity=%d,sync=%d,delay=%d,exttrans=%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<ARRAY_SIZE(setup) && (aha152x1[0]!=0 || io[1]!=0 || irq[1]!=0)) {
|
|
if(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];
|
|
#if defined(AHA152X_DEBUG)
|
|
setup[setup_count].debug = aha152x1[8];
|
|
#endif
|
|
} else if(io[1]!=0 || irq[1]!=0) {
|
|
if(io[1]!=0) setup[setup_count].io_port = io[1];
|
|
if(irq[1]!=0) setup[setup_count].irq = irq[1];
|
|
|
|
setup[setup_count].scsiid = scsiid[1];
|
|
setup[setup_count].reconnect = reconnect[1];
|
|
setup[setup_count].parity = parity[1];
|
|
setup[setup_count].synchronous = sync[1];
|
|
setup[setup_count].delay = delay[1];
|
|
setup[setup_count].ext_trans = exttrans[1];
|
|
#if defined(AHA152X_DEBUG)
|
|
setup[setup_count].debug = debug[1];
|
|
#endif
|
|
}
|
|
if (checksetup(&setup[setup_count]))
|
|
setup_count++;
|
|
else
|
|
printk(KERN_ERR "aha152x: invalid module params io=0x%x, irq=%d,scsiid=%d,reconnect=%d,parity=%d,sync=%d,delay=%d,exttrans=%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
|
|
|
|
#ifdef __ISAPNP__
|
|
for(i=0; setup_count<ARRAY_SIZE(setup) && id_table[i].vendor; i++) {
|
|
while ( setup_count<ARRAY_SIZE(setup) &&
|
|
(dev=pnp_find_dev(NULL, id_table[i].vendor, id_table[i].function, dev)) ) {
|
|
if (pnp_device_attach(dev) < 0)
|
|
continue;
|
|
|
|
if (pnp_activate_dev(dev) < 0) {
|
|
pnp_device_detach(dev);
|
|
continue;
|
|
}
|
|
|
|
if (!pnp_port_valid(dev, 0)) {
|
|
pnp_device_detach(dev);
|
|
continue;
|
|
}
|
|
|
|
if (setup_count==1 && pnp_port_start(dev, 0)==setup[0].io_port) {
|
|
pnp_device_detach(dev);
|
|
continue;
|
|
}
|
|
|
|
setup[setup_count].io_port = pnp_port_start(dev, 0);
|
|
setup[setup_count].irq = pnp_irq(dev, 0);
|
|
setup[setup_count].scsiid = 7;
|
|
setup[setup_count].reconnect = 1;
|
|
setup[setup_count].parity = 1;
|
|
setup[setup_count].synchronous = 1;
|
|
setup[setup_count].delay = DELAY_DEFAULT;
|
|
setup[setup_count].ext_trans = 0;
|
|
#if defined(AHA152X_DEBUG)
|
|
setup[setup_count].debug = DEBUG_DEFAULT;
|
|
#endif
|
|
#if defined(__ISAPNP__)
|
|
pnpdev[setup_count] = dev;
|
|
#endif
|
|
printk (KERN_INFO
|
|
"aha152x: found ISAPnP adapter at io=0x%03x, irq=%d\n",
|
|
setup[setup_count].io_port, setup[setup_count].irq);
|
|
setup_count++;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(AUTOCONF)
|
|
if (setup_count<ARRAY_SIZE(setup)) {
|
|
#if !defined(SKIP_BIOSTEST)
|
|
ok = 0;
|
|
for (i = 0; i < ARRAY_SIZE(addresses) && !ok; i++) {
|
|
void __iomem *p = ioremap(addresses[i], 0x4000);
|
|
if (!p)
|
|
continue;
|
|
for (j = 0; j<ARRAY_SIZE(signatures) && !ok; j++)
|
|
ok = check_signature(p + signatures[j].sig_offset,
|
|
signatures[j].signature, signatures[j].sig_length);
|
|
iounmap(p);
|
|
}
|
|
if (!ok && setup_count == 0)
|
|
return 0;
|
|
|
|
printk(KERN_INFO "aha152x: BIOS test: passed, ");
|
|
#else
|
|
printk(KERN_INFO "aha152x: ");
|
|
#endif /* !SKIP_BIOSTEST */
|
|
|
|
ok = 0;
|
|
for (i = 0; i < ARRAY_SIZE(ports) && setup_count < 2; i++) {
|
|
if ((setup_count == 1) && (setup[0].io_port == ports[i]))
|
|
continue;
|
|
|
|
if ( request_region(ports[i], IO_RANGE, "aha152x")==0 ) {
|
|
printk(KERN_ERR "aha152x: io port 0x%x busy.\n", ports[i]);
|
|
continue;
|
|
}
|
|
|
|
if (aha152x_porttest(ports[i])) {
|
|
setup[setup_count].tc1550 = 0;
|
|
|
|
conf.cf_port =
|
|
(GETPORT(ports[i] + O_PORTA) << 8) + GETPORT(ports[i] + O_PORTB);
|
|
} else if (tc1550_porttest(ports[i])) {
|
|
setup[setup_count].tc1550 = 1;
|
|
|
|
conf.cf_port =
|
|
(GETPORT(ports[i] + O_TC_PORTA) << 8) + GETPORT(ports[i] + O_TC_PORTB);
|
|
} else {
|
|
release_region(ports[i], IO_RANGE);
|
|
continue;
|
|
}
|
|
|
|
release_region(ports[i], IO_RANGE);
|
|
|
|
ok++;
|
|
setup[setup_count].io_port = ports[i];
|
|
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 = conf.cf_syncneg;
|
|
setup[setup_count].delay = DELAY_DEFAULT;
|
|
setup[setup_count].ext_trans = 0;
|
|
#if defined(AHA152X_DEBUG)
|
|
setup[setup_count].debug = DEBUG_DEFAULT;
|
|
#endif
|
|
setup_count++;
|
|
|
|
}
|
|
|
|
if (ok)
|
|
printk("auto configuration: ok, ");
|
|
}
|
|
#endif
|
|
|
|
printk("%d controller(s) configured\n", setup_count);
|
|
|
|
for (i=0; i<setup_count; i++) {
|
|
if ( request_region(setup[i].io_port, IO_RANGE, "aha152x") ) {
|
|
struct Scsi_Host *shpnt = aha152x_probe_one(&setup[i]);
|
|
|
|
if( !shpnt ) {
|
|
release_region(setup[i].io_port, IO_RANGE);
|
|
#if defined(__ISAPNP__)
|
|
} else if( pnpdev[i] ) {
|
|
HOSTDATA(shpnt)->pnpdev=pnpdev[i];
|
|
pnpdev[i]=NULL;
|
|
#endif
|
|
}
|
|
} else {
|
|
printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup[i].io_port);
|
|
}
|
|
|
|
#if defined(__ISAPNP__)
|
|
if( pnpdev[i] )
|
|
pnp_device_detach(pnpdev[i]);
|
|
#endif
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void __exit aha152x_exit(void)
|
|
{
|
|
struct aha152x_hostdata *hd;
|
|
|
|
list_for_each_entry(hd, &aha152x_host_list, host_list) {
|
|
struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
|
|
|
|
aha152x_release(shost);
|
|
}
|
|
}
|
|
|
|
module_init(aha152x_init);
|
|
module_exit(aha152x_exit);
|
|
|
|
#if !defined(MODULE)
|
|
static int __init aha152x_setup(char *str)
|
|
{
|
|
#if defined(AHA152X_DEBUG)
|
|
int ints[11];
|
|
#else
|
|
int ints[10];
|
|
#endif
|
|
get_options(str, ARRAY_SIZE(ints), ints);
|
|
|
|
if(setup_count>=ARRAY_SIZE(setup)) {
|
|
printk(KERN_ERR "aha152x: you can only configure up to two controllers\n");
|
|
return 1;
|
|
}
|
|
|
|
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] : 1;
|
|
setup[setup_count].delay = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT;
|
|
setup[setup_count].ext_trans = ints[0] >= 8 ? ints[8] : 0;
|
|
#if defined(AHA152X_DEBUG)
|
|
setup[setup_count].debug = ints[0] >= 9 ? ints[9] : DEBUG_DEFAULT;
|
|
if (ints[0] > 9) {
|
|
printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
|
|
"[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>[,<DEBUG>]]]]]]]]\n");
|
|
#else
|
|
if (ints[0] > 8) { /*}*/
|
|
printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
|
|
"[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n");
|
|
#endif
|
|
} else {
|
|
setup_count++;
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
__setup("aha152x=", aha152x_setup);
|
|
#endif
|
|
|
|
#endif /* !PCMCIA */
|