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freebsd-skq/sys/dev/aic7xxx/aic7xxx_pci.c
gibbs df180be1a1 ahc_eisa.c: 
ahc_pci.c:
ahd_pci.c:
aic7xxx.c:
aic79xx.c:
aic_osm_lib.c:
aic_osm_lib.h:
	Use common OSM routines from aic_osm_lib for bus dma operations,
	delay routines, accessing CCBs, byte swapping, etc.

aic7xxx_pci.c:
	Provide a better description for the 2915/30LP on attach.

aic7xxx.c:
aic79xx.c:
aic7770.c:
aic79xx_pci.c:
aic7xxx_pci.c:
aic7xxx_93cx6.c:
	Move FBSDID behind an ifdef so that these core files will
	still compile under other OSes.

aic79xx.h:
aic79xx_pci.c:
aic79xx.seq:
	To speed up non-packetized CDB delivery in Rev B, all CDB
	acks are "released" to the output sync as soon as the
	command phase starts.  There is only one problem with this
	approach.  If the target changes phase before all data are
	sent, we have left over acks that can go out on the bus in
	a data phase.  Due to other chip contraints, this only
	happens if the target goes to data-in, but if the acks go
	out before we can test SDONE, we'll think that the transfer
	has completed successfully.  Work around this by taking
	advantage of the 400ns or 800ns dead time between command
	phase and the REQ of the new phase.  If the transfer has
	completed successfully, SCSIEN should fall *long* before we
	see a phase change.  We thus treat any phasemiss that
	occurs before SCSIEN falls as an incomplete transfer.

	aic79xx.h:
		Add the AHD_FAST_CDB_DELIVERY feature.

	aic79xx_pci.c:
		Set AHD_FAST_CDB_DELIVERY for all Rev. B parts.

	aic79xx.seq:
		Test for PHASEMIS in the command phase for
		all AHD_FAST_CDB_DELIVERY controlelrs.

ahd_pci.c:
ahc_pci.c:
aic7xxx.h:
aic79xx.h:
	Move definition of controller BAR offsets to core header files.

aic7xxx.c:
aic79xx.c:
	In the softc free routine, leave removal of a softc from the
	global list of softcs to the OSM (the caller of this routine).
	This allows us to avoid holding the softc list_lock during device
	destruction where we may have to sleep waiting for our recovery
	thread to halt.

ahc_pci.c:
	Use ahc_pci_test_register access to validate I/O mapped in
	addition to the tests already performed for memory mapped
	access.

	Remove unused ahc_power_state_change() function.  The PCI
	layer in both 4.X and 5.X now offer this functionality.

ahd_pci.c:
	Remove reduntant definition of controller BAR offsets.  These
	are also defined in aic79xx.h.

	Remove unused ahd_power_state_change() function.  The PCI
	layer in both 4.X and 5.X now offer this functionality.

aic7xxx.c:
aic79xx.c:
aic79xx.h:
aic7xxx.h:
aic7xxx_osm.c:
aic79xx_osm.c:
	Move timeout handling to the driver cores.  In the case
	of the aic79xx driver, the algorithm has been enhanced
	to try target resets before performing a bus reset.  For
	the aic7xxx driver, the algorithm is unchanged.  Although
	the drivers do not currently sleep during recovery (recovery
	is timeout driven), the cores do expect all processing to
	be performed via a recovery thread.  Our timeout handlers
	are now little stubs that wakeup the recovery thread.

aic79xx.c:
aic79xx.h:
aic79xx_inline.h:
	Change shared_data allocation to use a map_node so
	that the sentinel hscb can use this map node in
	ahd_swap_with_next_hscb.  This routine now swaps
	the hscb_map pointer in additon to the hscb
	contents so that any sync operations occur on
	the correct map.

	physaddr -> busaddr

	Pointed out by: Jason Thorpe <thorpej@wasabisystems.com>

aic79xx.c:
	Make more use of the in/out/w/l/q macros for accessing
	byte registers in the chip.

	Correct some issues in the ahd_flush_qoutfifo() routine.
	    o Run the qoutfifo only once the command channel
	      DMA engine has been halted.  This closes a window
	      where we might have missed some entries.
	    o Change ahd_run_data_fifo() to not loop to completion.
	      If we happen to start on the wrong FIFO and the other
	      FIFO has a snapshot savepointers, we might deadlock.
	      This required our delay between FIFO tests to be
	      moved to the ahd_flush_qoutfifo() routine.
	    o Update/add comments.
	    o Remove spurious test for COMPLETE_DMA list being empty
	      when completing transactions from the GSFIFO with
	      residuals.  The SCB must be put on the COMPLETE_DMA
	      scb list unconditionally.
	    o When halting command channel DMA activity, we must
	      disable the DMA channel in all cases but an update
	      of the QOUTFIFO.  The latter case is required so
	      that the sequencer will update its position in the
	      QOUTFIFO.  Previously, we left the channel enabled
	      for all "push" DMAs.  This left us vulnerable to
	      the sequencer handling an SCB push long after that
	      SCB was already processed manually by this routine.
	    o Correct the polarity of tests involving
	      ahd_scb_active_in_fifo().  This routine returns
	      non-zero for true.

	Return to processing bad status completions through
	the qoutfifo.  This reduces the time that the sequencer
	is kept paused when handling transactions with bad
	status or underruns.

	When waiting for the controller to quiece selections,
	add a delay to our loop.  Otherwise we may fail to wait
	long enough for the sequencer to comply.

	On H2A4 hardware, use the slow slewrate for non-paced
	transfers.  This mirrors what the Adaptec Windows
	drivers do.

	On the Rev B. only slow down the CRC timing for
	older U160 devices that might need the slower timing.
	We define "older" as devices that do not support
	packetized protocol.

	Wait up to 5000 * 5us for the SEEPROM to become unbusy.
	Write ops seem to take much longer than read ops.

aic79xx.seq:
	For controllers with the FAINT_LED bug, turn the diagnostic
	led feature on during selection and reselection.  This covers
	the non-packetized case.  The LED will be disabled for
	non-packetized transfers once we return to the top level idle
	loop.  Add more comments about the busy LED workaround.

	Extend a critical section around the entire
	command channel idle loop process.  Previously
	the portion of this handler that directly manipulated
	the linked list of completed SCBs was not protected.
	This is the likely cause of the recent reports of
	commands being completed twice by the driver.

	Extend critical sections across the test for,
	and the longjump to, longjump routines.  This
	prevents the firmware from trying to jump to
	a longjmp handler that was just cleared by the
	host.

	Improve the locations of several critical section
	begin and end points.  Typically these changes
	remove instructions that did not need to be
	inside a critical section.

	Close the "busfree after selection, but before busfree
	interrupts can be enabled" race to just a single sequencer
	instruction.  We now test the BSY line explicitly before
	clearing the busfree status and enabling the busfree
	interrupt.

	Close a race condition in the processing of HS_MAILBOX
	updates.  We now clear the "updated" status before the
	copy.  This ensures that we don't accidentally clear
	the status incorrectly when the host sneaks in an update
	just after our last copy, but before we clear the status.
	This race has never been observed.

	Don't re-enable SCSIEN if we lose the race to disable SCSIEN
	in our interrupt handler's workaround for the RevA data-valid
	too early issue.

aic79xx_inline.h:
	Add comments indicating that the order in which bytes are
	read or written in ahd_inw and ahd_outw is important.  This
	allows us to use these inlines when accessing registers with
	side-effects.

aic79xx_pci.c:
	The 29320 and the 29320B are 7902 not 7901 based products.
	Correct the driver banner.

aic7xxx.h:
	Enable the use of the auto-access pause feature
	on the aic7870 and aic7880.  It was disabled due
	to an oversight.

aic7xxx.reg:
	Move TARG_IMMEDIATE_SCB to alias LAST_MSG to
	avoid leaving garbage in MWI_RESIDUAL.  This
	prevents spurious overflows whn operating target
	mode on controllers that require the MWI_RESIDUAL
	work-around.

aic7xxx.seq:
	AHC_TMODE_WIDEODD_BUG is a bug, not a softc flag.
	Reference the correct softc field when testing
	for its presence.

	Set the NOT_IDENTIFIED and NO_CDB_SENT bits
	in SEQ_FLAGS to indicate that the nexus is
	invalid in await busfree.

aic7xxx_93cx6.c:
	Add support for the C56/C66 versions of the EWEN and EWDS
	commands.

aic7xxx.c:
aic7xxx_pci.c:
	Move test for the validity of left over BIOS data
	to ahc_test_register_access().  This guarantees that
	any left over CHIPRST value is not clobbered by our
	register access test and lost to the test that was
	in ahc_reset.
2003-12-17 00:02:10 +00:00

2503 lines
63 KiB
C
Raw Blame History

/*
* Product specific probe and attach routines for:
* 3940, 2940, aic7895, aic7890, aic7880,
* aic7870, aic7860 and aic7850 SCSI controllers
*
* Copyright (c) 1994-2001 Justin T. Gibbs.
* Copyright (c) 2000-2001 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/aic7xxx/aic7xxx_pci.c#78 $
*/
#ifdef __linux__
#include "aic7xxx_osm.h"
#include "aic7xxx_inline.h"
#include "aic7xxx_93cx6.h"
#else
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <dev/aic7xxx/aic7xxx_osm.h>
#include <dev/aic7xxx/aic7xxx_inline.h>
#include <dev/aic7xxx/aic7xxx_93cx6.h>
#endif
static __inline uint64_t
ahc_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor)
{
uint64_t id;
id = subvendor
| (subdevice << 16)
| ((uint64_t)vendor << 32)
| ((uint64_t)device << 48);
return (id);
}
#define ID_ALL_MASK 0xFFFFFFFFFFFFFFFFull
#define ID_DEV_VENDOR_MASK 0xFFFFFFFF00000000ull
#define ID_9005_GENERIC_MASK 0xFFF0FFFF00000000ull
#define ID_9005_SISL_MASK 0x000FFFFF00000000ull
#define ID_9005_SISL_ID 0x0005900500000000ull
#define ID_AIC7850 0x5078900400000000ull
#define ID_AHA_2902_04_10_15_20C_30C 0x5078900478509004ull
#define ID_AIC7855 0x5578900400000000ull
#define ID_AIC7859 0x3860900400000000ull
#define ID_AHA_2930CU 0x3860900438699004ull
#define ID_AIC7860 0x6078900400000000ull
#define ID_AIC7860C 0x6078900478609004ull
#define ID_AHA_1480A 0x6075900400000000ull
#define ID_AHA_2940AU_0 0x6178900400000000ull
#define ID_AHA_2940AU_1 0x6178900478619004ull
#define ID_AHA_2940AU_CN 0x2178900478219004ull
#define ID_AHA_2930C_VAR 0x6038900438689004ull
#define ID_AIC7870 0x7078900400000000ull
#define ID_AHA_2940 0x7178900400000000ull
#define ID_AHA_3940 0x7278900400000000ull
#define ID_AHA_398X 0x7378900400000000ull
#define ID_AHA_2944 0x7478900400000000ull
#define ID_AHA_3944 0x7578900400000000ull
#define ID_AHA_4944 0x7678900400000000ull
#define ID_AIC7880 0x8078900400000000ull
#define ID_AIC7880_B 0x8078900478809004ull
#define ID_AHA_2940U 0x8178900400000000ull
#define ID_AHA_3940U 0x8278900400000000ull
#define ID_AHA_2944U 0x8478900400000000ull
#define ID_AHA_3944U 0x8578900400000000ull
#define ID_AHA_398XU 0x8378900400000000ull
#define ID_AHA_4944U 0x8678900400000000ull
#define ID_AHA_2940UB 0x8178900478819004ull
#define ID_AHA_2930U 0x8878900478889004ull
#define ID_AHA_2940U_PRO 0x8778900478879004ull
#define ID_AHA_2940U_CN 0x0078900478009004ull
#define ID_AIC7895 0x7895900478959004ull
#define ID_AIC7895_ARO 0x7890900478939004ull
#define ID_AIC7895_ARO_MASK 0xFFF0FFFFFFFFFFFFull
#define ID_AHA_2940U_DUAL 0x7895900478919004ull
#define ID_AHA_3940AU 0x7895900478929004ull
#define ID_AHA_3944AU 0x7895900478949004ull
#define ID_AIC7890 0x001F9005000F9005ull
#define ID_AIC7890_ARO 0x00139005000F9005ull
#define ID_AAA_131U2 0x0013900500039005ull
#define ID_AHA_2930U2 0x0011900501819005ull
#define ID_AHA_2940U2B 0x00109005A1009005ull
#define ID_AHA_2940U2_OEM 0x0010900521809005ull
#define ID_AHA_2940U2 0x00109005A1809005ull
#define ID_AHA_2950U2B 0x00109005E1009005ull
#define ID_AIC7892 0x008F9005FFFF9005ull
#define ID_AIC7892_ARO 0x00839005FFFF9005ull
#define ID_AHA_29160 0x00809005E2A09005ull
#define ID_AHA_29160_CPQ 0x00809005E2A00E11ull
#define ID_AHA_29160N 0x0080900562A09005ull
#define ID_AHA_29160C 0x0080900562209005ull
#define ID_AHA_29160B 0x00809005E2209005ull
#define ID_AHA_19160B 0x0081900562A19005ull
#define ID_AHA_2915_30LP 0x0082900502109005ull
#define ID_AIC7896 0x005F9005FFFF9005ull
#define ID_AIC7896_ARO 0x00539005FFFF9005ull
#define ID_AHA_3950U2B_0 0x00509005FFFF9005ull
#define ID_AHA_3950U2B_1 0x00509005F5009005ull
#define ID_AHA_3950U2D_0 0x00519005FFFF9005ull
#define ID_AHA_3950U2D_1 0x00519005B5009005ull
#define ID_AIC7899 0x00CF9005FFFF9005ull
#define ID_AIC7899_ARO 0x00C39005FFFF9005ull
#define ID_AHA_3960D 0x00C09005F6209005ull
#define ID_AHA_3960D_CPQ 0x00C09005F6200E11ull
#define ID_AIC7810 0x1078900400000000ull
#define ID_AIC7815 0x7815900400000000ull
#define DEVID_9005_TYPE(id) ((id) & 0xF)
#define DEVID_9005_TYPE_HBA 0x0 /* Standard Card */
#define DEVID_9005_TYPE_AAA 0x3 /* RAID Card */
#define DEVID_9005_TYPE_SISL 0x5 /* Container ROMB */
#define DEVID_9005_TYPE_MB 0xF /* On Motherboard */
#define DEVID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
#define DEVID_9005_MAXRATE_U160 0x0
#define DEVID_9005_MAXRATE_ULTRA2 0x1
#define DEVID_9005_MAXRATE_ULTRA 0x2
#define DEVID_9005_MAXRATE_FAST 0x3
#define DEVID_9005_MFUNC(id) (((id) & 0x40) >> 6)
#define DEVID_9005_CLASS(id) (((id) & 0xFF00) >> 8)
#define DEVID_9005_CLASS_SPI 0x0 /* Parallel SCSI */
#define SUBID_9005_TYPE(id) ((id) & 0xF)
#define SUBID_9005_TYPE_MB 0xF /* On Motherboard */
#define SUBID_9005_TYPE_CARD 0x0 /* Standard Card */
#define SUBID_9005_TYPE_LCCARD 0x1 /* Low Cost Card */
#define SUBID_9005_TYPE_RAID 0x3 /* Combined with Raid */
#define SUBID_9005_TYPE_KNOWN(id) \
((((id) & 0xF) == SUBID_9005_TYPE_MB) \
|| (((id) & 0xF) == SUBID_9005_TYPE_CARD) \
|| (((id) & 0xF) == SUBID_9005_TYPE_LCCARD) \
|| (((id) & 0xF) == SUBID_9005_TYPE_RAID))
#define SUBID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
#define SUBID_9005_MAXRATE_ULTRA2 0x0
#define SUBID_9005_MAXRATE_ULTRA 0x1
#define SUBID_9005_MAXRATE_U160 0x2
#define SUBID_9005_MAXRATE_RESERVED 0x3
#define SUBID_9005_SEEPTYPE(id) \
((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \
? ((id) & 0xC0) >> 6 \
: ((id) & 0x300) >> 8)
#define SUBID_9005_SEEPTYPE_NONE 0x0
#define SUBID_9005_SEEPTYPE_1K 0x1
#define SUBID_9005_SEEPTYPE_2K_4K 0x2
#define SUBID_9005_SEEPTYPE_RESERVED 0x3
#define SUBID_9005_AUTOTERM(id) \
((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \
? (((id) & 0x400) >> 10) == 0 \
: (((id) & 0x40) >> 6) == 0)
#define SUBID_9005_NUMCHAN(id) \
((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \
? ((id) & 0x300) >> 8 \
: ((id) & 0xC00) >> 10)
#define SUBID_9005_LEGACYCONN(id) \
((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \
? 0 \
: ((id) & 0x80) >> 7)
#define SUBID_9005_MFUNCENB(id) \
((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \
? ((id) & 0x800) >> 11 \
: ((id) & 0x1000) >> 12)
/*
* Informational only. Should use chip register to be
* certain, but may be use in identification strings.
*/
#define SUBID_9005_CARD_SCSIWIDTH_MASK 0x2000
#define SUBID_9005_CARD_PCIWIDTH_MASK 0x4000
#define SUBID_9005_CARD_SEDIFF_MASK 0x8000
static ahc_device_setup_t ahc_aic785X_setup;
static ahc_device_setup_t ahc_aic7860_setup;
static ahc_device_setup_t ahc_apa1480_setup;
static ahc_device_setup_t ahc_aic7870_setup;
static ahc_device_setup_t ahc_aha394X_setup;
static ahc_device_setup_t ahc_aha494X_setup;
static ahc_device_setup_t ahc_aha398X_setup;
static ahc_device_setup_t ahc_aic7880_setup;
static ahc_device_setup_t ahc_aha2940Pro_setup;
static ahc_device_setup_t ahc_aha394XU_setup;
static ahc_device_setup_t ahc_aha398XU_setup;
static ahc_device_setup_t ahc_aic7890_setup;
static ahc_device_setup_t ahc_aic7892_setup;
static ahc_device_setup_t ahc_aic7895_setup;
static ahc_device_setup_t ahc_aic7896_setup;
static ahc_device_setup_t ahc_aic7899_setup;
static ahc_device_setup_t ahc_aha29160C_setup;
static ahc_device_setup_t ahc_raid_setup;
static ahc_device_setup_t ahc_aha394XX_setup;
static ahc_device_setup_t ahc_aha494XX_setup;
static ahc_device_setup_t ahc_aha398XX_setup;
struct ahc_pci_identity ahc_pci_ident_table [] =
{
/* aic7850 based controllers */
{
ID_AHA_2902_04_10_15_20C_30C,
ID_ALL_MASK,
"Adaptec 2902/04/10/15/20C/30C SCSI adapter",
ahc_aic785X_setup
},
/* aic7860 based controllers */
{
ID_AHA_2930CU,
ID_ALL_MASK,
"Adaptec 2930CU SCSI adapter",
ahc_aic7860_setup
},
{
ID_AHA_1480A & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 1480A Ultra SCSI adapter",
ahc_apa1480_setup
},
{
ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2940A Ultra SCSI adapter",
ahc_aic7860_setup
},
{
ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2940A/CN Ultra SCSI adapter",
ahc_aic7860_setup
},
{
ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2930C Ultra SCSI adapter (VAR)",
ahc_aic7860_setup
},
/* aic7870 based controllers */
{
ID_AHA_2940,
ID_ALL_MASK,
"Adaptec 2940 SCSI adapter",
ahc_aic7870_setup
},
{
ID_AHA_3940,
ID_ALL_MASK,
"Adaptec 3940 SCSI adapter",
ahc_aha394X_setup
},
{
ID_AHA_398X,
ID_ALL_MASK,
"Adaptec 398X SCSI RAID adapter",
ahc_aha398X_setup
},
{
ID_AHA_2944,
ID_ALL_MASK,
"Adaptec 2944 SCSI adapter",
ahc_aic7870_setup
},
{
ID_AHA_3944,
ID_ALL_MASK,
"Adaptec 3944 SCSI adapter",
ahc_aha394X_setup
},
{
ID_AHA_4944,
ID_ALL_MASK,
"Adaptec 4944 SCSI adapter",
ahc_aha494X_setup
},
/* aic7880 based controllers */
{
ID_AHA_2940U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2940 Ultra SCSI adapter",
ahc_aic7880_setup
},
{
ID_AHA_3940U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 3940 Ultra SCSI adapter",
ahc_aha394XU_setup
},
{
ID_AHA_2944U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2944 Ultra SCSI adapter",
ahc_aic7880_setup
},
{
ID_AHA_3944U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 3944 Ultra SCSI adapter",
ahc_aha394XU_setup
},
{
ID_AHA_398XU & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 398X Ultra SCSI RAID adapter",
ahc_aha398XU_setup
},
{
/*
* XXX Don't know the slot numbers
* so we can't identify channels
*/
ID_AHA_4944U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 4944 Ultra SCSI adapter",
ahc_aic7880_setup
},
{
ID_AHA_2930U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2930 Ultra SCSI adapter",
ahc_aic7880_setup
},
{
ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2940 Pro Ultra SCSI adapter",
ahc_aha2940Pro_setup
},
{
ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2940/CN Ultra SCSI adapter",
ahc_aic7880_setup
},
/* Ignore all SISL (AAC on MB) based controllers. */
{
ID_9005_SISL_ID,
ID_9005_SISL_MASK,
NULL,
NULL
},
/* aic7890 based controllers */
{
ID_AHA_2930U2,
ID_ALL_MASK,
"Adaptec 2930 Ultra2 SCSI adapter",
ahc_aic7890_setup
},
{
ID_AHA_2940U2B,
ID_ALL_MASK,
"Adaptec 2940B Ultra2 SCSI adapter",
ahc_aic7890_setup
},
{
ID_AHA_2940U2_OEM,
ID_ALL_MASK,
"Adaptec 2940 Ultra2 SCSI adapter (OEM)",
ahc_aic7890_setup
},
{
ID_AHA_2940U2,
ID_ALL_MASK,
"Adaptec 2940 Ultra2 SCSI adapter",
ahc_aic7890_setup
},
{
ID_AHA_2950U2B,
ID_ALL_MASK,
"Adaptec 2950 Ultra2 SCSI adapter",
ahc_aic7890_setup
},
{
ID_AIC7890_ARO,
ID_ALL_MASK,
"Adaptec aic7890/91 Ultra2 SCSI adapter (ARO)",
ahc_aic7890_setup
},
{
ID_AAA_131U2,
ID_ALL_MASK,
"Adaptec AAA-131 Ultra2 RAID adapter",
ahc_aic7890_setup
},
/* aic7892 based controllers */
{
ID_AHA_29160,
ID_ALL_MASK,
"Adaptec 29160 Ultra160 SCSI adapter",
ahc_aic7892_setup
},
{
ID_AHA_29160_CPQ,
ID_ALL_MASK,
"Adaptec (Compaq OEM) 29160 Ultra160 SCSI adapter",
ahc_aic7892_setup
},
{
ID_AHA_29160N,
ID_ALL_MASK,
"Adaptec 29160N Ultra160 SCSI adapter",
ahc_aic7892_setup
},
{
ID_AHA_29160C,
ID_ALL_MASK,
"Adaptec 29160C Ultra160 SCSI adapter",
ahc_aha29160C_setup
},
{
ID_AHA_29160B,
ID_ALL_MASK,
"Adaptec 29160B Ultra160 SCSI adapter",
ahc_aic7892_setup
},
{
ID_AHA_19160B,
ID_ALL_MASK,
"Adaptec 19160B Ultra160 SCSI adapter",
ahc_aic7892_setup
},
{
ID_AIC7892_ARO,
ID_ALL_MASK,
"Adaptec aic7892 Ultra160 SCSI adapter (ARO)",
ahc_aic7892_setup
},
{
ID_AHA_2915_30LP,
ID_ALL_MASK,
"Adaptec 2915/30LP Ultra160 SCSI adapter",
ahc_aic7892_setup
},
/* aic7895 based controllers */
{
ID_AHA_2940U_DUAL,
ID_ALL_MASK,
"Adaptec 2940/DUAL Ultra SCSI adapter",
ahc_aic7895_setup
},
{
ID_AHA_3940AU,
ID_ALL_MASK,
"Adaptec 3940A Ultra SCSI adapter",
ahc_aic7895_setup
},
{
ID_AHA_3944AU,
ID_ALL_MASK,
"Adaptec 3944A Ultra SCSI adapter",
ahc_aic7895_setup
},
{
ID_AIC7895_ARO,
ID_AIC7895_ARO_MASK,
"Adaptec aic7895 Ultra SCSI adapter (ARO)",
ahc_aic7895_setup
},
/* aic7896/97 based controllers */
{
ID_AHA_3950U2B_0,
ID_ALL_MASK,
"Adaptec 3950B Ultra2 SCSI adapter",
ahc_aic7896_setup
},
{
ID_AHA_3950U2B_1,
ID_ALL_MASK,
"Adaptec 3950B Ultra2 SCSI adapter",
ahc_aic7896_setup
},
{
ID_AHA_3950U2D_0,
ID_ALL_MASK,
"Adaptec 3950D Ultra2 SCSI adapter",
ahc_aic7896_setup
},
{
ID_AHA_3950U2D_1,
ID_ALL_MASK,
"Adaptec 3950D Ultra2 SCSI adapter",
ahc_aic7896_setup
},
{
ID_AIC7896_ARO,
ID_ALL_MASK,
"Adaptec aic7896/97 Ultra2 SCSI adapter (ARO)",
ahc_aic7896_setup
},
/* aic7899 based controllers */
{
ID_AHA_3960D,
ID_ALL_MASK,
"Adaptec 3960D Ultra160 SCSI adapter",
ahc_aic7899_setup
},
{
ID_AHA_3960D_CPQ,
ID_ALL_MASK,
"Adaptec (Compaq OEM) 3960D Ultra160 SCSI adapter",
ahc_aic7899_setup
},
{
ID_AIC7899_ARO,
ID_ALL_MASK,
"Adaptec aic7899 Ultra160 SCSI adapter (ARO)",
ahc_aic7899_setup
},
/* Generic chip probes for devices we don't know 'exactly' */
{
ID_AIC7850 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7850 SCSI adapter",
ahc_aic785X_setup
},
{
ID_AIC7855 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7855 SCSI adapter",
ahc_aic785X_setup
},
{
ID_AIC7859 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7859 SCSI adapter",
ahc_aic7860_setup
},
{
ID_AIC7860 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7860 Ultra SCSI adapter",
ahc_aic7860_setup
},
{
ID_AIC7870 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7870 SCSI adapter",
ahc_aic7870_setup
},
{
ID_AIC7880 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7880 Ultra SCSI adapter",
ahc_aic7880_setup
},
{
ID_AIC7890 & ID_9005_GENERIC_MASK,
ID_9005_GENERIC_MASK,
"Adaptec aic7890/91 Ultra2 SCSI adapter",
ahc_aic7890_setup
},
{
ID_AIC7892 & ID_9005_GENERIC_MASK,
ID_9005_GENERIC_MASK,
"Adaptec aic7892 Ultra160 SCSI adapter",
ahc_aic7892_setup
},
{
ID_AIC7895 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7895 Ultra SCSI adapter",
ahc_aic7895_setup
},
{
ID_AIC7896 & ID_9005_GENERIC_MASK,
ID_9005_GENERIC_MASK,
"Adaptec aic7896/97 Ultra2 SCSI adapter",
ahc_aic7896_setup
},
{
ID_AIC7899 & ID_9005_GENERIC_MASK,
ID_9005_GENERIC_MASK,
"Adaptec aic7899 Ultra160 SCSI adapter",
ahc_aic7899_setup
},
{
ID_AIC7810 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7810 RAID memory controller",
ahc_raid_setup
},
{
ID_AIC7815 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7815 RAID memory controller",
ahc_raid_setup
}
};
const u_int ahc_num_pci_devs = NUM_ELEMENTS(ahc_pci_ident_table);
#define AHC_394X_SLOT_CHANNEL_A 4
#define AHC_394X_SLOT_CHANNEL_B 5
#define AHC_398X_SLOT_CHANNEL_A 4
#define AHC_398X_SLOT_CHANNEL_B 8
#define AHC_398X_SLOT_CHANNEL_C 12
#define AHC_494X_SLOT_CHANNEL_A 4
#define AHC_494X_SLOT_CHANNEL_B 5
#define AHC_494X_SLOT_CHANNEL_C 6
#define AHC_494X_SLOT_CHANNEL_D 7
#define DEVCONFIG 0x40
#define PCIERRGENDIS 0x80000000ul
#define SCBSIZE32 0x00010000ul /* aic789X only */
#define REXTVALID 0x00001000ul /* ultra cards only */
#define MPORTMODE 0x00000400ul /* aic7870+ only */
#define RAMPSM 0x00000200ul /* aic7870+ only */
#define VOLSENSE 0x00000100ul
#define PCI64BIT 0x00000080ul /* 64Bit PCI bus (Ultra2 Only)*/
#define SCBRAMSEL 0x00000080ul
#define MRDCEN 0x00000040ul
#define EXTSCBTIME 0x00000020ul /* aic7870 only */
#define EXTSCBPEN 0x00000010ul /* aic7870 only */
#define BERREN 0x00000008ul
#define DACEN 0x00000004ul
#define STPWLEVEL 0x00000002ul
#define DIFACTNEGEN 0x00000001ul /* aic7870 only */
#define CSIZE_LATTIME 0x0c
#define CACHESIZE 0x0000003ful /* only 5 bits */
#define LATTIME 0x0000ff00ul
/* PCI STATUS definitions */
#define DPE 0x80
#define SSE 0x40
#define RMA 0x20
#define RTA 0x10
#define STA 0x08
#define DPR 0x01
static int ahc_9005_subdevinfo_valid(uint16_t vendor, uint16_t device,
uint16_t subvendor, uint16_t subdevice);
static int ahc_ext_scbram_present(struct ahc_softc *ahc);
static void ahc_scbram_config(struct ahc_softc *ahc, int enable,
int pcheck, int fast, int large);
static void ahc_probe_ext_scbram(struct ahc_softc *ahc);
static void check_extport(struct ahc_softc *ahc, u_int *sxfrctl1);
static void ahc_parse_pci_eeprom(struct ahc_softc *ahc,
struct seeprom_config *sc);
static void configure_termination(struct ahc_softc *ahc,
struct seeprom_descriptor *sd,
u_int adapter_control,
u_int *sxfrctl1);
static void ahc_new_term_detect(struct ahc_softc *ahc,
int *enableSEC_low,
int *enableSEC_high,
int *enablePRI_low,
int *enablePRI_high,
int *eeprom_present);
static void aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
int *internal68_present,
int *externalcable_present,
int *eeprom_present);
static void aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
int *externalcable_present,
int *eeprom_present);
static void write_brdctl(struct ahc_softc *ahc, uint8_t value);
static uint8_t read_brdctl(struct ahc_softc *ahc);
static void ahc_pci_intr(struct ahc_softc *ahc);
static int ahc_pci_chip_init(struct ahc_softc *ahc);
static int ahc_pci_suspend(struct ahc_softc *ahc);
static int ahc_pci_resume(struct ahc_softc *ahc);
static int
ahc_9005_subdevinfo_valid(uint16_t device, uint16_t vendor,
uint16_t subdevice, uint16_t subvendor)
{
int result;
/* Default to invalid. */
result = 0;
if (vendor == 0x9005
&& subvendor == 0x9005
&& subdevice != device
&& SUBID_9005_TYPE_KNOWN(subdevice) != 0) {
switch (SUBID_9005_TYPE(subdevice)) {
case SUBID_9005_TYPE_MB:
break;
case SUBID_9005_TYPE_CARD:
case SUBID_9005_TYPE_LCCARD:
/*
* Currently only trust Adaptec cards to
* get the sub device info correct.
*/
if (DEVID_9005_TYPE(device) == DEVID_9005_TYPE_HBA)
result = 1;
break;
case SUBID_9005_TYPE_RAID:
break;
default:
break;
}
}
return (result);
}
struct ahc_pci_identity *
ahc_find_pci_device(aic_dev_softc_t pci)
{
uint64_t full_id;
uint16_t device;
uint16_t vendor;
uint16_t subdevice;
uint16_t subvendor;
struct ahc_pci_identity *entry;
u_int i;
vendor = aic_pci_read_config(pci, PCIR_DEVVENDOR, /*bytes*/2);
device = aic_pci_read_config(pci, PCIR_DEVICE, /*bytes*/2);
subvendor = aic_pci_read_config(pci, PCIR_SUBVEND_0, /*bytes*/2);
subdevice = aic_pci_read_config(pci, PCIR_SUBDEV_0, /*bytes*/2);
full_id = ahc_compose_id(device, vendor, subdevice, subvendor);
/*
* If the second function is not hooked up, ignore it.
* Unfortunately, not all MB vendors implement the
* subdevice ID as per the Adaptec spec, so do our best
* to sanity check it prior to accepting the subdevice
* ID as valid.
*/
if (aic_get_pci_function(pci) > 0
&& ahc_9005_subdevinfo_valid(vendor, device, subvendor, subdevice)
&& SUBID_9005_MFUNCENB(subdevice) == 0)
return (NULL);
for (i = 0; i < ahc_num_pci_devs; i++) {
entry = &ahc_pci_ident_table[i];
if (entry->full_id == (full_id & entry->id_mask)) {
/* Honor exclusion entries. */
if (entry->name == NULL)
return (NULL);
return (entry);
}
}
return (NULL);
}
int
ahc_pci_config(struct ahc_softc *ahc, struct ahc_pci_identity *entry)
{
u_long l;
u_int command;
u_int our_id;
u_int sxfrctl1;
u_int scsiseq;
u_int dscommand0;
uint32_t devconfig;
int error;
uint8_t sblkctl;
our_id = 0;
error = entry->setup(ahc);
if (error != 0)
return (error);
ahc->chip |= AHC_PCI;
ahc->description = entry->name;
aic_power_state_change(ahc, AIC_POWER_STATE_D0);
error = ahc_pci_map_registers(ahc);
if (error != 0)
return (error);
/*
* Before we continue probing the card, ensure that
* its interrupts are *disabled*. We don't want
* a misstep to hang the machine in an interrupt
* storm.
*/
ahc_intr_enable(ahc, FALSE);
devconfig = aic_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
/*
* If we need to support high memory, enable dual
* address cycles. This bit must be set to enable
* high address bit generation even if we are on a
* 64bit bus (PCI64BIT set in devconfig).
*/
if ((ahc->flags & AHC_39BIT_ADDRESSING) != 0) {
if (bootverbose)
printf("%s: Enabling 39Bit Addressing\n",
ahc_name(ahc));
devconfig |= DACEN;
}
/* Ensure that pci error generation, a test feature, is disabled. */
devconfig |= PCIERRGENDIS;
aic_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
/* Ensure busmastering is enabled */
command = aic_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2);
command |= PCIM_CMD_BUSMASTEREN;
aic_pci_write_config(ahc->dev_softc, PCIR_COMMAND, command, /*bytes*/2);
/* On all PCI adapters, we allow SCB paging */
ahc->flags |= AHC_PAGESCBS;
error = ahc_softc_init(ahc);
if (error != 0)
return (error);
/*
* Disable PCI parity error checking. Users typically
* do this to work around broken PCI chipsets that get
* the parity timing wrong and thus generate lots of spurious
* errors. The chip only allows us to disable *all* parity
* error reporting when doing this, so CIO bus, scb ram, and
* scratch ram parity errors will be ignored too.
*/
if ((ahc->flags & AHC_DISABLE_PCI_PERR) != 0)
ahc->seqctl |= FAILDIS;
ahc->bus_intr = ahc_pci_intr;
ahc->bus_chip_init = ahc_pci_chip_init;
ahc->bus_suspend = ahc_pci_suspend;
ahc->bus_resume = ahc_pci_resume;
/* Remeber how the card was setup in case there is no SEEPROM */
if ((ahc_inb(ahc, HCNTRL) & POWRDN) == 0) {
ahc_pause(ahc);
if ((ahc->features & AHC_ULTRA2) != 0)
our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID;
else
our_id = ahc_inb(ahc, SCSIID) & OID;
sxfrctl1 = ahc_inb(ahc, SXFRCTL1) & STPWEN;
scsiseq = ahc_inb(ahc, SCSISEQ);
} else {
sxfrctl1 = STPWEN;
our_id = 7;
scsiseq = 0;
}
error = ahc_reset(ahc, /*reinit*/FALSE);
if (error != 0)
return (ENXIO);
if ((ahc->features & AHC_DT) != 0) {
u_int sfunct;
/* Perform ALT-Mode Setup */
sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
ahc_outb(ahc, OPTIONMODE,
OPTIONMODE_DEFAULTS|AUTOACKEN|BUSFREEREV|EXPPHASEDIS);
ahc_outb(ahc, SFUNCT, sfunct);
/* Normal mode setup */
ahc_outb(ahc, CRCCONTROL1, CRCVALCHKEN|CRCENDCHKEN|CRCREQCHKEN
|TARGCRCENDEN);
}
dscommand0 = ahc_inb(ahc, DSCOMMAND0);
dscommand0 |= MPARCKEN|CACHETHEN;
if ((ahc->features & AHC_ULTRA2) != 0) {
/*
* DPARCKEN doesn't work correctly on
* some MBs so don't use it.
*/
dscommand0 &= ~DPARCKEN;
}
/*
* Handle chips that must have cache line
* streaming (dis/en)abled.
*/
if ((ahc->bugs & AHC_CACHETHEN_DIS_BUG) != 0)
dscommand0 |= CACHETHEN;
if ((ahc->bugs & AHC_CACHETHEN_BUG) != 0)
dscommand0 &= ~CACHETHEN;
ahc_outb(ahc, DSCOMMAND0, dscommand0);
ahc->pci_cachesize =
aic_pci_read_config(ahc->dev_softc, CSIZE_LATTIME,
/*bytes*/1) & CACHESIZE;
ahc->pci_cachesize *= 4;
if ((ahc->bugs & AHC_PCI_2_1_RETRY_BUG) != 0
&& ahc->pci_cachesize == 4) {
aic_pci_write_config(ahc->dev_softc, CSIZE_LATTIME,
0, /*bytes*/1);
ahc->pci_cachesize = 0;
}
/*
* We cannot perform ULTRA speeds without the presense
* of the external precision resistor.
*/
if ((ahc->features & AHC_ULTRA) != 0) {
uint32_t devconfig;
devconfig = aic_pci_read_config(ahc->dev_softc,
DEVCONFIG, /*bytes*/4);
if ((devconfig & REXTVALID) == 0)
ahc->features &= ~AHC_ULTRA;
}
/* See if we have a SEEPROM and perform auto-term */
check_extport(ahc, &sxfrctl1);
/*
* Take the LED out of diagnostic mode
*/
sblkctl = ahc_inb(ahc, SBLKCTL);
ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
if ((ahc->features & AHC_ULTRA2) != 0) {
ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_MAX|WR_DFTHRSH_MAX);
} else {
ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
}
if (ahc->flags & AHC_USEDEFAULTS) {
/*
* PCI Adapter default setup
* Should only be used if the adapter does not have
* a SEEPROM.
*/
/* See if someone else set us up already */
if ((ahc->flags & AHC_NO_BIOS_INIT) == 0
&& scsiseq != 0) {
printf("%s: Using left over BIOS settings\n",
ahc_name(ahc));
ahc->flags &= ~AHC_USEDEFAULTS;
ahc->flags |= AHC_BIOS_ENABLED;
} else {
/*
* Assume only one connector and always turn
* on termination.
*/
our_id = 0x07;
sxfrctl1 = STPWEN;
}
ahc_outb(ahc, SCSICONF, our_id|ENSPCHK|RESET_SCSI);
ahc->our_id = our_id;
}
/*
* Take a look to see if we have external SRAM.
* We currently do not attempt to use SRAM that is
* shared among multiple controllers.
*/
ahc_probe_ext_scbram(ahc);
/*
* Record our termination setting for the
* generic initialization routine.
*/
if ((sxfrctl1 & STPWEN) != 0)
ahc->flags |= AHC_TERM_ENB_A;
/*
* Save chip register configuration data for chip resets
* that occur during runtime and resume events.
*/
ahc->bus_softc.pci_softc.devconfig =
aic_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
ahc->bus_softc.pci_softc.command =
aic_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/1);
ahc->bus_softc.pci_softc.csize_lattime =
aic_pci_read_config(ahc->dev_softc, CSIZE_LATTIME, /*bytes*/1);
ahc->bus_softc.pci_softc.dscommand0 = ahc_inb(ahc, DSCOMMAND0);
ahc->bus_softc.pci_softc.dspcistatus = ahc_inb(ahc, DSPCISTATUS);
if ((ahc->features & AHC_DT) != 0) {
u_int sfunct;
sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
ahc->bus_softc.pci_softc.optionmode = ahc_inb(ahc, OPTIONMODE);
ahc->bus_softc.pci_softc.targcrccnt = ahc_inw(ahc, TARGCRCCNT);
ahc_outb(ahc, SFUNCT, sfunct);
ahc->bus_softc.pci_softc.crccontrol1 =
ahc_inb(ahc, CRCCONTROL1);
}
if ((ahc->features & AHC_MULTI_FUNC) != 0)
ahc->bus_softc.pci_softc.scbbaddr = ahc_inb(ahc, SCBBADDR);
if ((ahc->features & AHC_ULTRA2) != 0)
ahc->bus_softc.pci_softc.dff_thrsh = ahc_inb(ahc, DFF_THRSH);
/* Core initialization */
error = ahc_init(ahc);
if (error != 0)
return (error);
/*
* Allow interrupts now that we are completely setup.
*/
error = ahc_pci_map_int(ahc);
if (error != 0)
return (error);
ahc_list_lock(&l);
/*
* Link this softc in with all other ahc instances.
*/
ahc_softc_insert(ahc);
ahc_list_unlock(&l);
return (0);
}
/*
* Test for the presense of external sram in an
* "unshared" configuration.
*/
static int
ahc_ext_scbram_present(struct ahc_softc *ahc)
{
u_int chip;
int ramps;
int single_user;
uint32_t devconfig;
chip = ahc->chip & AHC_CHIPID_MASK;
devconfig = aic_pci_read_config(ahc->dev_softc,
DEVCONFIG, /*bytes*/4);
single_user = (devconfig & MPORTMODE) != 0;
if ((ahc->features & AHC_ULTRA2) != 0)
ramps = (ahc_inb(ahc, DSCOMMAND0) & RAMPS) != 0;
else if (chip == AHC_AIC7895 || chip == AHC_AIC7895C)
/*
* External SCBRAM arbitration is flakey
* on these chips. Unfortunately this means
* we don't use the extra SCB ram space on the
* 3940AUW.
*/
ramps = 0;
else if (chip >= AHC_AIC7870)
ramps = (devconfig & RAMPSM) != 0;
else
ramps = 0;
if (ramps && single_user)
return (1);
return (0);
}
/*
* Enable external scbram.
*/
static void
ahc_scbram_config(struct ahc_softc *ahc, int enable, int pcheck,
int fast, int large)
{
uint32_t devconfig;
if (ahc->features & AHC_MULTI_FUNC) {
/*
* Set the SCB Base addr (highest address bit)
* depending on which channel we are.
*/
ahc_outb(ahc, SCBBADDR, aic_get_pci_function(ahc->dev_softc));
}
ahc->flags &= ~AHC_LSCBS_ENABLED;
if (large)
ahc->flags |= AHC_LSCBS_ENABLED;
devconfig = aic_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
if ((ahc->features & AHC_ULTRA2) != 0) {
u_int dscommand0;
dscommand0 = ahc_inb(ahc, DSCOMMAND0);
if (enable)
dscommand0 &= ~INTSCBRAMSEL;
else
dscommand0 |= INTSCBRAMSEL;
if (large)
dscommand0 &= ~USCBSIZE32;
else
dscommand0 |= USCBSIZE32;
ahc_outb(ahc, DSCOMMAND0, dscommand0);
} else {
if (fast)
devconfig &= ~EXTSCBTIME;
else
devconfig |= EXTSCBTIME;
if (enable)
devconfig &= ~SCBRAMSEL;
else
devconfig |= SCBRAMSEL;
if (large)
devconfig &= ~SCBSIZE32;
else
devconfig |= SCBSIZE32;
}
if (pcheck)
devconfig |= EXTSCBPEN;
else
devconfig &= ~EXTSCBPEN;
aic_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
}
/*
* Take a look to see if we have external SRAM.
* We currently do not attempt to use SRAM that is
* shared among multiple controllers.
*/
static void
ahc_probe_ext_scbram(struct ahc_softc *ahc)
{
int num_scbs;
int test_num_scbs;
int enable;
int pcheck;
int fast;
int large;
enable = FALSE;
pcheck = FALSE;
fast = FALSE;
large = FALSE;
num_scbs = 0;
if (ahc_ext_scbram_present(ahc) == 0)
goto done;
/*
* Probe for the best parameters to use.
*/
ahc_scbram_config(ahc, /*enable*/TRUE, pcheck, fast, large);
num_scbs = ahc_probe_scbs(ahc);
if (num_scbs == 0) {
/* The SRAM wasn't really present. */
goto done;
}
enable = TRUE;
/*
* Clear any outstanding parity error
* and ensure that parity error reporting
* is enabled.
*/
ahc_outb(ahc, SEQCTL, 0);
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, CLRINT, CLRBRKADRINT);
/* Now see if we can do parity */
ahc_scbram_config(ahc, enable, /*pcheck*/TRUE, fast, large);
num_scbs = ahc_probe_scbs(ahc);
if ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
|| (ahc_inb(ahc, ERROR) & MPARERR) == 0)
pcheck = TRUE;
/* Clear any resulting parity error */
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, CLRINT, CLRBRKADRINT);
/* Now see if we can do fast timing */
ahc_scbram_config(ahc, enable, pcheck, /*fast*/TRUE, large);
test_num_scbs = ahc_probe_scbs(ahc);
if (test_num_scbs == num_scbs
&& ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
|| (ahc_inb(ahc, ERROR) & MPARERR) == 0))
fast = TRUE;
/*
* See if we can use large SCBs and still maintain
* the same overall count of SCBs.
*/
if ((ahc->features & AHC_LARGE_SCBS) != 0) {
ahc_scbram_config(ahc, enable, pcheck, fast, /*large*/TRUE);
test_num_scbs = ahc_probe_scbs(ahc);
if (test_num_scbs >= num_scbs) {
large = TRUE;
num_scbs = test_num_scbs;
if (num_scbs >= 64) {
/*
* We have enough space to move the
* "busy targets table" into SCB space
* and make it qualify all the way to the
* lun level.
*/
ahc->flags |= AHC_SCB_BTT;
}
}
}
done:
/*
* Disable parity error reporting until we
* can load instruction ram.
*/
ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
/* Clear any latched parity error */
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, CLRINT, CLRBRKADRINT);
if (bootverbose && enable) {
printf("%s: External SRAM, %s access%s, %dbytes/SCB\n",
ahc_name(ahc), fast ? "fast" : "slow",
pcheck ? ", parity checking enabled" : "",
large ? 64 : 32);
}
ahc_scbram_config(ahc, enable, pcheck, fast, large);
}
/*
* Perform some simple tests that should catch situations where
* our registers are invalidly mapped.
*/
int
ahc_pci_test_register_access(struct ahc_softc *ahc)
{
int error;
u_int status1;
uint32_t cmd;
uint8_t hcntrl;
error = EIO;
/*
* Enable PCI error interrupt status, but suppress NMIs
* generated by SERR raised due to target aborts.
*/
cmd = aic_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2);
aic_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
cmd & ~PCIM_CMD_SERRESPEN, /*bytes*/2);
/*
* First a simple test to see if any
* registers can be read. Reading
* HCNTRL has no side effects and has
* at least one bit that is guaranteed to
* be zero so it is a good register to
* use for this test.
*/
hcntrl = ahc_inb(ahc, HCNTRL);
if (hcntrl == 0xFF)
goto fail;
if ((hcntrl & CHIPRST) != 0) {
/*
* The chip has not been initialized since
* PCI/EISA/VLB bus reset. Don't trust
* "left over BIOS data".
*/
ahc->flags |= AHC_NO_BIOS_INIT;
}
/*
* Next create a situation where write combining
* or read prefetching could be initiated by the
* CPU or host bridge. Our device does not support
* either, so look for data corruption and/or flagged
* PCI errors. First pause without causing another
* chip reset.
*/
hcntrl &= ~CHIPRST;
ahc_outb(ahc, HCNTRL, hcntrl|PAUSE);
while (ahc_is_paused(ahc) == 0)
;
/* Clear any PCI errors that occurred before our driver attached. */
status1 = aic_pci_read_config(ahc->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
aic_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
status1, /*bytes*/1);
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, SEQCTL, PERRORDIS);
ahc_outb(ahc, SCBPTR, 0);
ahc_outl(ahc, SCB_BASE, 0x5aa555aa);
if (ahc_inl(ahc, SCB_BASE) != 0x5aa555aa)
goto fail;
status1 = aic_pci_read_config(ahc->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
if ((status1 & STA) != 0)
goto fail;
error = 0;
fail:
/* Silently clear any latched errors. */
status1 = aic_pci_read_config(ahc->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
aic_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
status1, /*bytes*/1);
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
aic_pci_write_config(ahc->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2);
return (error);
}
/*
* Check the external port logic for a serial eeprom
* and termination/cable detection contrls.
*/
static void
check_extport(struct ahc_softc *ahc, u_int *sxfrctl1)
{
struct seeprom_descriptor sd;
struct seeprom_config *sc;
int have_seeprom;
int have_autoterm;
sd.sd_ahc = ahc;
sd.sd_control_offset = SEECTL;
sd.sd_status_offset = SEECTL;
sd.sd_dataout_offset = SEECTL;
sc = ahc->seep_config;
/*
* For some multi-channel devices, the c46 is simply too
* small to work. For the other controller types, we can
* get our information from either SEEPROM type. Set the
* type to start our probe with accordingly.
*/
if (ahc->flags & AHC_LARGE_SEEPROM)
sd.sd_chip = C56_66;
else
sd.sd_chip = C46;
sd.sd_MS = SEEMS;
sd.sd_RDY = SEERDY;
sd.sd_CS = SEECS;
sd.sd_CK = SEECK;
sd.sd_DO = SEEDO;
sd.sd_DI = SEEDI;
have_seeprom = ahc_acquire_seeprom(ahc, &sd);
if (have_seeprom) {
if (bootverbose)
printf("%s: Reading SEEPROM...", ahc_name(ahc));
for (;;) {
u_int start_addr;
start_addr = 32 * (ahc->channel - 'A');
have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
start_addr,
sizeof(*sc)/2);
if (have_seeprom)
have_seeprom = ahc_verify_cksum(sc);
if (have_seeprom != 0 || sd.sd_chip == C56_66) {
if (bootverbose) {
if (have_seeprom == 0)
printf ("checksum error\n");
else
printf ("done.\n");
}
break;
}
sd.sd_chip = C56_66;
}
ahc_release_seeprom(&sd);
/* Remember the SEEPROM type for later */
if (sd.sd_chip == C56_66)
ahc->flags |= AHC_LARGE_SEEPROM;
}
if (!have_seeprom) {
/*
* Pull scratch ram settings and treat them as
* if they are the contents of an seeprom if
* the 'ADPT' signature is found in SCB2.
* We manually compose the data as 16bit values
* to avoid endian issues.
*/
ahc_outb(ahc, SCBPTR, 2);
if (ahc_inb(ahc, SCB_BASE) == 'A'
&& ahc_inb(ahc, SCB_BASE + 1) == 'D'
&& ahc_inb(ahc, SCB_BASE + 2) == 'P'
&& ahc_inb(ahc, SCB_BASE + 3) == 'T') {
uint16_t *sc_data;
int i;
sc_data = (uint16_t *)sc;
for (i = 0; i < 32; i++, sc_data++) {
int j;
j = i * 2;
*sc_data = ahc_inb(ahc, SRAM_BASE + j)
| ahc_inb(ahc, SRAM_BASE + j + 1) << 8;
}
have_seeprom = ahc_verify_cksum(sc);
if (have_seeprom)
ahc->flags |= AHC_SCB_CONFIG_USED;
}
/*
* Clear any SCB parity errors in case this data and
* its associated parity was not initialized by the BIOS
*/
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, CLRINT, CLRBRKADRINT);
}
if (!have_seeprom) {
if (bootverbose)
printf("%s: No SEEPROM available.\n", ahc_name(ahc));
ahc->flags |= AHC_USEDEFAULTS;
free(ahc->seep_config, M_DEVBUF);
ahc->seep_config = NULL;
sc = NULL;
} else {
ahc_parse_pci_eeprom(ahc, sc);
}
/*
* Cards that have the external logic necessary to talk to
* a SEEPROM, are almost certain to have the remaining logic
* necessary for auto-termination control. This assumption
* hasn't failed yet...
*/
have_autoterm = have_seeprom;
/*
* Some low-cost chips have SEEPROM and auto-term control built
* in, instead of using a GAL. They can tell us directly
* if the termination logic is enabled.
*/
if ((ahc->features & AHC_SPIOCAP) != 0) {
if ((ahc_inb(ahc, SPIOCAP) & SSPIOCPS) == 0)
have_autoterm = FALSE;
}
if (have_autoterm) {
ahc->flags |= AHC_HAS_TERM_LOGIC;
ahc_acquire_seeprom(ahc, &sd);
configure_termination(ahc, &sd, sc->adapter_control, sxfrctl1);
ahc_release_seeprom(&sd);
} else if (have_seeprom) {
*sxfrctl1 &= ~STPWEN;
if ((sc->adapter_control & CFSTERM) != 0)
*sxfrctl1 |= STPWEN;
if (bootverbose)
printf("%s: Low byte termination %sabled\n",
ahc_name(ahc),
(*sxfrctl1 & STPWEN) ? "en" : "dis");
}
}
static void
ahc_parse_pci_eeprom(struct ahc_softc *ahc, struct seeprom_config *sc)
{
/*
* Put the data we've collected down into SRAM
* where ahc_init will find it.
*/
int i;
int max_targ = sc->max_targets & CFMAXTARG;
u_int scsi_conf;
uint16_t discenable;
uint16_t ultraenb;
discenable = 0;
ultraenb = 0;
if ((sc->adapter_control & CFULTRAEN) != 0) {
/*
* Determine if this adapter has a "newstyle"
* SEEPROM format.
*/
for (i = 0; i < max_targ; i++) {
if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0) {
ahc->flags |= AHC_NEWEEPROM_FMT;
break;
}
}
}
for (i = 0; i < max_targ; i++) {
u_int scsirate;
uint16_t target_mask;
target_mask = 0x01 << i;
if (sc->device_flags[i] & CFDISC)
discenable |= target_mask;
if ((ahc->flags & AHC_NEWEEPROM_FMT) != 0) {
if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0)
ultraenb |= target_mask;
} else if ((sc->adapter_control & CFULTRAEN) != 0) {
ultraenb |= target_mask;
}
if ((sc->device_flags[i] & CFXFER) == 0x04
&& (ultraenb & target_mask) != 0) {
/* Treat 10MHz as a non-ultra speed */
sc->device_flags[i] &= ~CFXFER;
ultraenb &= ~target_mask;
}
if ((ahc->features & AHC_ULTRA2) != 0) {
u_int offset;
if (sc->device_flags[i] & CFSYNCH)
offset = MAX_OFFSET_ULTRA2;
else
offset = 0;
ahc_outb(ahc, TARG_OFFSET + i, offset);
/*
* The ultra enable bits contain the
* high bit of the ultra2 sync rate
* field.
*/
scsirate = (sc->device_flags[i] & CFXFER)
| ((ultraenb & target_mask) ? 0x8 : 0x0);
if (sc->device_flags[i] & CFWIDEB)
scsirate |= WIDEXFER;
} else {
scsirate = (sc->device_flags[i] & CFXFER) << 4;
if (sc->device_flags[i] & CFSYNCH)
scsirate |= SOFS;
if (sc->device_flags[i] & CFWIDEB)
scsirate |= WIDEXFER;
}
ahc_outb(ahc, TARG_SCSIRATE + i, scsirate);
}
ahc->our_id = sc->brtime_id & CFSCSIID;
scsi_conf = (ahc->our_id & 0x7);
if (sc->adapter_control & CFSPARITY)
scsi_conf |= ENSPCHK;
if (sc->adapter_control & CFRESETB)
scsi_conf |= RESET_SCSI;
ahc->flags |= (sc->adapter_control & CFBOOTCHAN) >> CFBOOTCHANSHIFT;
if (sc->bios_control & CFEXTEND)
ahc->flags |= AHC_EXTENDED_TRANS_A;
if (sc->bios_control & CFBIOSEN)
ahc->flags |= AHC_BIOS_ENABLED;
if (ahc->features & AHC_ULTRA
&& (ahc->flags & AHC_NEWEEPROM_FMT) == 0) {
/* Should we enable Ultra mode? */
if (!(sc->adapter_control & CFULTRAEN))
/* Treat us as a non-ultra card */
ultraenb = 0;
}
if (sc->signature == CFSIGNATURE
|| sc->signature == CFSIGNATURE2) {
uint32_t devconfig;
/* Honor the STPWLEVEL settings */
devconfig = aic_pci_read_config(ahc->dev_softc,
DEVCONFIG, /*bytes*/4);
devconfig &= ~STPWLEVEL;
if ((sc->bios_control & CFSTPWLEVEL) != 0)
devconfig |= STPWLEVEL;
aic_pci_write_config(ahc->dev_softc, DEVCONFIG,
devconfig, /*bytes*/4);
}
/* Set SCSICONF info */
ahc_outb(ahc, SCSICONF, scsi_conf);
ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
ahc_outb(ahc, ULTRA_ENB, ultraenb & 0xff);
ahc_outb(ahc, ULTRA_ENB + 1, (ultraenb >> 8) & 0xff);
}
static void
configure_termination(struct ahc_softc *ahc,
struct seeprom_descriptor *sd,
u_int adapter_control,
u_int *sxfrctl1)
{
uint8_t brddat;
brddat = 0;
/*
* Update the settings in sxfrctl1 to match the
* termination settings
*/
*sxfrctl1 = 0;
/*
* SEECS must be on for the GALS to latch
* the data properly. Be sure to leave MS
* on or we will release the seeprom.
*/
SEEPROM_OUTB(sd, sd->sd_MS | sd->sd_CS);
if ((adapter_control & CFAUTOTERM) != 0
|| (ahc->features & AHC_NEW_TERMCTL) != 0) {
int internal50_present;
int internal68_present;
int externalcable_present;
int eeprom_present;
int enableSEC_low;
int enableSEC_high;
int enablePRI_low;
int enablePRI_high;
int sum;
enableSEC_low = 0;
enableSEC_high = 0;
enablePRI_low = 0;
enablePRI_high = 0;
if ((ahc->features & AHC_NEW_TERMCTL) != 0) {
ahc_new_term_detect(ahc, &enableSEC_low,
&enableSEC_high,
&enablePRI_low,
&enablePRI_high,
&eeprom_present);
if ((adapter_control & CFSEAUTOTERM) == 0) {
if (bootverbose)
printf("%s: Manual SE Termination\n",
ahc_name(ahc));
enableSEC_low = (adapter_control & CFSELOWTERM);
enableSEC_high =
(adapter_control & CFSEHIGHTERM);
}
if ((adapter_control & CFAUTOTERM) == 0) {
if (bootverbose)
printf("%s: Manual LVD Termination\n",
ahc_name(ahc));
enablePRI_low = (adapter_control & CFSTERM);
enablePRI_high = (adapter_control & CFWSTERM);
}
/* Make the table calculations below happy */
internal50_present = 0;
internal68_present = 1;
externalcable_present = 1;
} else if ((ahc->features & AHC_SPIOCAP) != 0) {
aic785X_cable_detect(ahc, &internal50_present,
&externalcable_present,
&eeprom_present);
/* Can never support a wide connector. */
internal68_present = 0;
} else {
aic787X_cable_detect(ahc, &internal50_present,
&internal68_present,
&externalcable_present,
&eeprom_present);
}
if ((ahc->features & AHC_WIDE) == 0)
internal68_present = 0;
if (bootverbose
&& (ahc->features & AHC_ULTRA2) == 0) {
printf("%s: internal 50 cable %s present",
ahc_name(ahc),
internal50_present ? "is":"not");
if ((ahc->features & AHC_WIDE) != 0)
printf(", internal 68 cable %s present",
internal68_present ? "is":"not");
printf("\n%s: external cable %s present\n",
ahc_name(ahc),
externalcable_present ? "is":"not");
}
if (bootverbose)
printf("%s: BIOS eeprom %s present\n",
ahc_name(ahc), eeprom_present ? "is" : "not");
if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0) {
/*
* The 50 pin connector is a separate bus,
* so force it to always be terminated.
* In the future, perform current sensing
* to determine if we are in the middle of
* a properly terminated bus.
*/
internal50_present = 0;
}
/*
* Now set the termination based on what
* we found.
* Flash Enable = BRDDAT7
* Secondary High Term Enable = BRDDAT6
* Secondary Low Term Enable = BRDDAT5 (7890)
* Primary High Term Enable = BRDDAT4 (7890)
*/
if ((ahc->features & AHC_ULTRA2) == 0
&& (internal50_present != 0)
&& (internal68_present != 0)
&& (externalcable_present != 0)) {
printf("%s: Illegal cable configuration!!. "
"Only two connectors on the "
"adapter may be used at a "
"time!\n", ahc_name(ahc));
/*
* Pretend there are no cables in the hope
* that having all of the termination on
* gives us a more stable bus.
*/
internal50_present = 0;
internal68_present = 0;
externalcable_present = 0;
}
if ((ahc->features & AHC_WIDE) != 0
&& ((externalcable_present == 0)
|| (internal68_present == 0)
|| (enableSEC_high != 0))) {
brddat |= BRDDAT6;
if (bootverbose) {
if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0)
printf("%s: 68 pin termination "
"Enabled\n", ahc_name(ahc));
else
printf("%s: %sHigh byte termination "
"Enabled\n", ahc_name(ahc),
enableSEC_high ? "Secondary "
: "");
}
}
sum = internal50_present + internal68_present
+ externalcable_present;
if (sum < 2 || (enableSEC_low != 0)) {
if ((ahc->features & AHC_ULTRA2) != 0)
brddat |= BRDDAT5;
else
*sxfrctl1 |= STPWEN;
if (bootverbose) {
if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0)
printf("%s: 50 pin termination "
"Enabled\n", ahc_name(ahc));
else
printf("%s: %sLow byte termination "
"Enabled\n", ahc_name(ahc),
enableSEC_low ? "Secondary "
: "");
}
}
if (enablePRI_low != 0) {
*sxfrctl1 |= STPWEN;
if (bootverbose)
printf("%s: Primary Low Byte termination "
"Enabled\n", ahc_name(ahc));
}
/*
* Setup STPWEN before setting up the rest of
* the termination per the tech note on the U160 cards.
*/
ahc_outb(ahc, SXFRCTL1, *sxfrctl1);
if (enablePRI_high != 0) {
brddat |= BRDDAT4;
if (bootverbose)
printf("%s: Primary High Byte "
"termination Enabled\n",
ahc_name(ahc));
}
write_brdctl(ahc, brddat);
} else {
if ((adapter_control & CFSTERM) != 0) {
*sxfrctl1 |= STPWEN;
if (bootverbose)
printf("%s: %sLow byte termination Enabled\n",
ahc_name(ahc),
(ahc->features & AHC_ULTRA2) ? "Primary "
: "");
}
if ((adapter_control & CFWSTERM) != 0
&& (ahc->features & AHC_WIDE) != 0) {
brddat |= BRDDAT6;
if (bootverbose)
printf("%s: %sHigh byte termination Enabled\n",
ahc_name(ahc),
(ahc->features & AHC_ULTRA2)
? "Secondary " : "");
}
/*
* Setup STPWEN before setting up the rest of
* the termination per the tech note on the U160 cards.
*/
ahc_outb(ahc, SXFRCTL1, *sxfrctl1);
if ((ahc->features & AHC_WIDE) != 0)
write_brdctl(ahc, brddat);
}
SEEPROM_OUTB(sd, sd->sd_MS); /* Clear CS */
}
static void
ahc_new_term_detect(struct ahc_softc *ahc, int *enableSEC_low,
int *enableSEC_high, int *enablePRI_low,
int *enablePRI_high, int *eeprom_present)
{
uint8_t brdctl;
/*
* BRDDAT7 = Eeprom
* BRDDAT6 = Enable Secondary High Byte termination
* BRDDAT5 = Enable Secondary Low Byte termination
* BRDDAT4 = Enable Primary high byte termination
* BRDDAT3 = Enable Primary low byte termination
*/
brdctl = read_brdctl(ahc);
*eeprom_present = brdctl & BRDDAT7;
*enableSEC_high = (brdctl & BRDDAT6);
*enableSEC_low = (brdctl & BRDDAT5);
*enablePRI_high = (brdctl & BRDDAT4);
*enablePRI_low = (brdctl & BRDDAT3);
}
static void
aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
int *internal68_present, int *externalcable_present,
int *eeprom_present)
{
uint8_t brdctl;
/*
* First read the status of our cables.
* Set the rom bank to 0 since the
* bank setting serves as a multiplexor
* for the cable detection logic.
* BRDDAT5 controls the bank switch.
*/
write_brdctl(ahc, 0);
/*
* Now read the state of the internal
* connectors. BRDDAT6 is INT50 and
* BRDDAT7 is INT68.
*/
brdctl = read_brdctl(ahc);
*internal50_present = (brdctl & BRDDAT6) ? 0 : 1;
*internal68_present = (brdctl & BRDDAT7) ? 0 : 1;
/*
* Set the rom bank to 1 and determine
* the other signals.
*/
write_brdctl(ahc, BRDDAT5);
/*
* Now read the state of the external
* connectors. BRDDAT6 is EXT68 and
* BRDDAT7 is EPROMPS.
*/
brdctl = read_brdctl(ahc);
*externalcable_present = (brdctl & BRDDAT6) ? 0 : 1;
*eeprom_present = (brdctl & BRDDAT7) ? 1 : 0;
}
static void
aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
int *externalcable_present, int *eeprom_present)
{
uint8_t brdctl;
uint8_t spiocap;
spiocap = ahc_inb(ahc, SPIOCAP);
spiocap &= ~SOFTCMDEN;
spiocap |= EXT_BRDCTL;
ahc_outb(ahc, SPIOCAP, spiocap);
ahc_outb(ahc, BRDCTL, BRDRW|BRDCS);
ahc_flush_device_writes(ahc);
aic_delay(500);
ahc_outb(ahc, BRDCTL, 0);
ahc_flush_device_writes(ahc);
aic_delay(500);
brdctl = ahc_inb(ahc, BRDCTL);
*internal50_present = (brdctl & BRDDAT5) ? 0 : 1;
*externalcable_present = (brdctl & BRDDAT6) ? 0 : 1;
*eeprom_present = (ahc_inb(ahc, SPIOCAP) & EEPROM) ? 1 : 0;
}
int
ahc_acquire_seeprom(struct ahc_softc *ahc, struct seeprom_descriptor *sd)
{
int wait;
if ((ahc->features & AHC_SPIOCAP) != 0
&& (ahc_inb(ahc, SPIOCAP) & SEEPROM) == 0)
return (0);
/*
* Request access of the memory port. When access is
* granted, SEERDY will go high. We use a 1 second
* timeout which should be near 1 second more than
* is needed. Reason: after the chip reset, there
* should be no contention.
*/
SEEPROM_OUTB(sd, sd->sd_MS);
wait = 1000; /* 1 second timeout in msec */
while (--wait && ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0)) {
aic_delay(1000); /* delay 1 msec */
}
if ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0) {
SEEPROM_OUTB(sd, 0);
return (0);
}
return(1);
}
void
ahc_release_seeprom(struct seeprom_descriptor *sd)
{
/* Release access to the memory port and the serial EEPROM. */
SEEPROM_OUTB(sd, 0);
}
static void
write_brdctl(struct ahc_softc *ahc, uint8_t value)
{
uint8_t brdctl;
if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
brdctl = BRDSTB;
if (ahc->channel == 'B')
brdctl |= BRDCS;
} else if ((ahc->features & AHC_ULTRA2) != 0) {
brdctl = 0;
} else {
brdctl = BRDSTB|BRDCS;
}
ahc_outb(ahc, BRDCTL, brdctl);
ahc_flush_device_writes(ahc);
brdctl |= value;
ahc_outb(ahc, BRDCTL, brdctl);
ahc_flush_device_writes(ahc);
if ((ahc->features & AHC_ULTRA2) != 0)
brdctl |= BRDSTB_ULTRA2;
else
brdctl &= ~BRDSTB;
ahc_outb(ahc, BRDCTL, brdctl);
ahc_flush_device_writes(ahc);
if ((ahc->features & AHC_ULTRA2) != 0)
brdctl = 0;
else
brdctl &= ~BRDCS;
ahc_outb(ahc, BRDCTL, brdctl);
}
static uint8_t
read_brdctl(struct ahc_softc *ahc)
{
uint8_t brdctl;
uint8_t value;
if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
brdctl = BRDRW;
if (ahc->channel == 'B')
brdctl |= BRDCS;
} else if ((ahc->features & AHC_ULTRA2) != 0) {
brdctl = BRDRW_ULTRA2;
} else {
brdctl = BRDRW|BRDCS;
}
ahc_outb(ahc, BRDCTL, brdctl);
ahc_flush_device_writes(ahc);
value = ahc_inb(ahc, BRDCTL);
ahc_outb(ahc, BRDCTL, 0);
return (value);
}
static void
ahc_pci_intr(struct ahc_softc *ahc)
{
u_int error;
u_int status1;
error = ahc_inb(ahc, ERROR);
if ((error & PCIERRSTAT) == 0)
return;
status1 = aic_pci_read_config(ahc->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
printf("%s: PCI error Interrupt at seqaddr = 0x%x\n",
ahc_name(ahc),
ahc_inb(ahc, SEQADDR0) | (ahc_inb(ahc, SEQADDR1) << 8));
if (status1 & DPE) {
ahc->pci_target_perr_count++;
printf("%s: Data Parity Error Detected during address "
"or write data phase\n", ahc_name(ahc));
}
if (status1 & SSE) {
printf("%s: Signal System Error Detected\n", ahc_name(ahc));
}
if (status1 & RMA) {
printf("%s: Received a Master Abort\n", ahc_name(ahc));
}
if (status1 & RTA) {
printf("%s: Received a Target Abort\n", ahc_name(ahc));
}
if (status1 & STA) {
printf("%s: Signaled a Target Abort\n", ahc_name(ahc));
}
if (status1 & DPR) {
printf("%s: Data Parity Error has been reported via PERR#\n",
ahc_name(ahc));
}
/* Clear latched errors. */
aic_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
status1, /*bytes*/1);
if ((status1 & (DPE|SSE|RMA|RTA|STA|DPR)) == 0) {
printf("%s: Latched PCIERR interrupt with "
"no status bits set\n", ahc_name(ahc));
} else {
ahc_outb(ahc, CLRINT, CLRPARERR);
}
if (ahc->pci_target_perr_count > AHC_PCI_TARGET_PERR_THRESH) {
printf(
"%s: WARNING WARNING WARNING WARNING\n"
"%s: Too many PCI parity errors observed as a target.\n"
"%s: Some device on this bus is generating bad parity.\n"
"%s: This is an error *observed by*, not *generated by*, this controller.\n"
"%s: PCI parity error checking has been disabled.\n"
"%s: WARNING WARNING WARNING WARNING\n",
ahc_name(ahc), ahc_name(ahc), ahc_name(ahc),
ahc_name(ahc), ahc_name(ahc), ahc_name(ahc));
ahc->seqctl |= FAILDIS;
ahc_outb(ahc, SEQCTL, ahc->seqctl);
}
ahc_unpause(ahc);
}
static int
ahc_pci_chip_init(struct ahc_softc *ahc)
{
ahc_outb(ahc, DSCOMMAND0, ahc->bus_softc.pci_softc.dscommand0);
ahc_outb(ahc, DSPCISTATUS, ahc->bus_softc.pci_softc.dspcistatus);
if ((ahc->features & AHC_DT) != 0) {
u_int sfunct;
sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
ahc_outb(ahc, OPTIONMODE, ahc->bus_softc.pci_softc.optionmode);
ahc_outw(ahc, TARGCRCCNT, ahc->bus_softc.pci_softc.targcrccnt);
ahc_outb(ahc, SFUNCT, sfunct);
ahc_outb(ahc, CRCCONTROL1,
ahc->bus_softc.pci_softc.crccontrol1);
}
if ((ahc->features & AHC_MULTI_FUNC) != 0)
ahc_outb(ahc, SCBBADDR, ahc->bus_softc.pci_softc.scbbaddr);
if ((ahc->features & AHC_ULTRA2) != 0)
ahc_outb(ahc, DFF_THRSH, ahc->bus_softc.pci_softc.dff_thrsh);
return (ahc_chip_init(ahc));
}
static int
ahc_pci_suspend(struct ahc_softc *ahc)
{
return (ahc_suspend(ahc));
}
static int
ahc_pci_resume(struct ahc_softc *ahc)
{
aic_power_state_change(ahc, AIC_POWER_STATE_D0);
/*
* We assume that the OS has restored our register
* mappings, etc. Just update the config space registers
* that the OS doesn't know about and rely on our chip
* reset handler to handle the rest.
*/
aic_pci_write_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4,
ahc->bus_softc.pci_softc.devconfig);
aic_pci_write_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/1,
ahc->bus_softc.pci_softc.command);
aic_pci_write_config(ahc->dev_softc, CSIZE_LATTIME, /*bytes*/1,
ahc->bus_softc.pci_softc.csize_lattime);
if ((ahc->flags & AHC_HAS_TERM_LOGIC) != 0) {
struct seeprom_descriptor sd;
u_int sxfrctl1;
sd.sd_ahc = ahc;
sd.sd_control_offset = SEECTL;
sd.sd_status_offset = SEECTL;
sd.sd_dataout_offset = SEECTL;
ahc_acquire_seeprom(ahc, &sd);
configure_termination(ahc, &sd,
ahc->seep_config->adapter_control,
&sxfrctl1);
ahc_release_seeprom(&sd);
}
return (ahc_resume(ahc));
}
static int
ahc_aic785X_setup(struct ahc_softc *ahc)
{
aic_dev_softc_t pci;
uint8_t rev;
pci = ahc->dev_softc;
ahc->channel = 'A';
ahc->chip = AHC_AIC7850;
ahc->features = AHC_AIC7850_FE;
ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
if (rev >= 1)
ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
ahc->instruction_ram_size = 512;
return (0);
}
static int
ahc_aic7860_setup(struct ahc_softc *ahc)
{
aic_dev_softc_t pci;
uint8_t rev;
pci = ahc->dev_softc;
ahc->channel = 'A';
ahc->chip = AHC_AIC7860;
ahc->features = AHC_AIC7860_FE;
ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
if (rev >= 1)
ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
ahc->instruction_ram_size = 512;
return (0);
}
static int
ahc_apa1480_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7860_setup(ahc);
if (error != 0)
return (error);
ahc->features |= AHC_REMOVABLE;
return (0);
}
static int
ahc_aic7870_setup(struct ahc_softc *ahc)
{
ahc->channel = 'A';
ahc->chip = AHC_AIC7870;
ahc->features = AHC_AIC7870_FE;
ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
ahc->instruction_ram_size = 512;
return (0);
}
static int
ahc_aha394X_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7870_setup(ahc);
if (error == 0)
error = ahc_aha394XX_setup(ahc);
return (error);
}
static int
ahc_aha398X_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7870_setup(ahc);
if (error == 0)
error = ahc_aha398XX_setup(ahc);
return (error);
}
static int
ahc_aha494X_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7870_setup(ahc);
if (error == 0)
error = ahc_aha494XX_setup(ahc);
return (error);
}
static int
ahc_aic7880_setup(struct ahc_softc *ahc)
{
aic_dev_softc_t pci;
uint8_t rev;
pci = ahc->dev_softc;
ahc->channel = 'A';
ahc->chip = AHC_AIC7880;
ahc->features = AHC_AIC7880_FE;
ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
if (rev >= 1) {
ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
} else {
ahc->bugs |= AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
}
ahc->instruction_ram_size = 512;
return (0);
}
static int
ahc_aha2940Pro_setup(struct ahc_softc *ahc)
{
ahc->flags |= AHC_INT50_SPEEDFLEX;
return (ahc_aic7880_setup(ahc));
}
static int
ahc_aha394XU_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7880_setup(ahc);
if (error == 0)
error = ahc_aha394XX_setup(ahc);
return (error);
}
static int
ahc_aha398XU_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7880_setup(ahc);
if (error == 0)
error = ahc_aha398XX_setup(ahc);
return (error);
}
static int
ahc_aic7890_setup(struct ahc_softc *ahc)
{
aic_dev_softc_t pci;
uint8_t rev;
pci = ahc->dev_softc;
ahc->channel = 'A';
ahc->chip = AHC_AIC7890;
ahc->features = AHC_AIC7890_FE;
ahc->flags |= AHC_NEWEEPROM_FMT;
rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
if (rev == 0)
ahc->bugs |= AHC_AUTOFLUSH_BUG|AHC_CACHETHEN_BUG;
ahc->instruction_ram_size = 768;
return (0);
}
static int
ahc_aic7892_setup(struct ahc_softc *ahc)
{
ahc->channel = 'A';
ahc->chip = AHC_AIC7892;
ahc->features = AHC_AIC7892_FE;
ahc->flags |= AHC_NEWEEPROM_FMT;
ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
ahc->instruction_ram_size = 1024;
return (0);
}
static int
ahc_aic7895_setup(struct ahc_softc *ahc)
{
aic_dev_softc_t pci;
uint8_t rev;
pci = ahc->dev_softc;
ahc->channel = aic_get_pci_function(pci) == 1 ? 'B' : 'A';
/*
* The 'C' revision of the aic7895 has a few additional features.
*/
rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
if (rev >= 4) {
ahc->chip = AHC_AIC7895C;
ahc->features = AHC_AIC7895C_FE;
} else {
u_int command;
ahc->chip = AHC_AIC7895;
ahc->features = AHC_AIC7895_FE;
/*
* The BIOS disables the use of MWI transactions
* since it does not have the MWI bug work around
* we have. Disabling MWI reduces performance, so
* turn it on again.
*/
command = aic_pci_read_config(pci, PCIR_COMMAND, /*bytes*/1);
command |= PCIM_CMD_MWRICEN;
aic_pci_write_config(pci, PCIR_COMMAND, command, /*bytes*/1);
ahc->bugs |= AHC_PCI_MWI_BUG;
}
/*
* XXX Does CACHETHEN really not work??? What about PCI retry?
* on C level chips. Need to test, but for now, play it safe.
*/
ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_PCI_2_1_RETRY_BUG
| AHC_CACHETHEN_BUG;
#if 0
uint32_t devconfig;
/*
* Cachesize must also be zero due to stray DAC
* problem when sitting behind some bridges.
*/
aic_pci_write_config(pci, CSIZE_LATTIME, 0, /*bytes*/1);
devconfig = aic_pci_read_config(pci, DEVCONFIG, /*bytes*/1);
devconfig |= MRDCEN;
aic_pci_write_config(pci, DEVCONFIG, devconfig, /*bytes*/1);
#endif
ahc->flags |= AHC_NEWEEPROM_FMT;
ahc->instruction_ram_size = 512;
return (0);
}
static int
ahc_aic7896_setup(struct ahc_softc *ahc)
{
aic_dev_softc_t pci;
pci = ahc->dev_softc;
ahc->channel = aic_get_pci_function(pci) == 1 ? 'B' : 'A';
ahc->chip = AHC_AIC7896;
ahc->features = AHC_AIC7896_FE;
ahc->flags |= AHC_NEWEEPROM_FMT;
ahc->bugs |= AHC_CACHETHEN_DIS_BUG;
ahc->instruction_ram_size = 768;
return (0);
}
static int
ahc_aic7899_setup(struct ahc_softc *ahc)
{
aic_dev_softc_t pci;
pci = ahc->dev_softc;
ahc->channel = aic_get_pci_function(pci) == 1 ? 'B' : 'A';
ahc->chip = AHC_AIC7899;
ahc->features = AHC_AIC7899_FE;
ahc->flags |= AHC_NEWEEPROM_FMT;
ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
ahc->instruction_ram_size = 1024;
return (0);
}
static int
ahc_aha29160C_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7899_setup(ahc);
if (error != 0)
return (error);
ahc->features |= AHC_REMOVABLE;
return (0);
}
static int
ahc_raid_setup(struct ahc_softc *ahc)
{
printf("RAID functionality unsupported\n");
return (ENXIO);
}
static int
ahc_aha394XX_setup(struct ahc_softc *ahc)
{
aic_dev_softc_t pci;
pci = ahc->dev_softc;
switch (aic_get_pci_slot(pci)) {
case AHC_394X_SLOT_CHANNEL_A:
ahc->channel = 'A';
break;
case AHC_394X_SLOT_CHANNEL_B:
ahc->channel = 'B';
break;
default:
printf("adapter at unexpected slot %d\n"
"unable to map to a channel\n",
aic_get_pci_slot(pci));
ahc->channel = 'A';
}
return (0);
}
static int
ahc_aha398XX_setup(struct ahc_softc *ahc)
{
aic_dev_softc_t pci;
pci = ahc->dev_softc;
switch (aic_get_pci_slot(pci)) {
case AHC_398X_SLOT_CHANNEL_A:
ahc->channel = 'A';
break;
case AHC_398X_SLOT_CHANNEL_B:
ahc->channel = 'B';
break;
case AHC_398X_SLOT_CHANNEL_C:
ahc->channel = 'C';
break;
default:
printf("adapter at unexpected slot %d\n"
"unable to map to a channel\n",
aic_get_pci_slot(pci));
ahc->channel = 'A';
break;
}
ahc->flags |= AHC_LARGE_SEEPROM;
return (0);
}
static int
ahc_aha494XX_setup(struct ahc_softc *ahc)
{
aic_dev_softc_t pci;
pci = ahc->dev_softc;
switch (aic_get_pci_slot(pci)) {
case AHC_494X_SLOT_CHANNEL_A:
ahc->channel = 'A';
break;
case AHC_494X_SLOT_CHANNEL_B:
ahc->channel = 'B';
break;
case AHC_494X_SLOT_CHANNEL_C:
ahc->channel = 'C';
break;
case AHC_494X_SLOT_CHANNEL_D:
ahc->channel = 'D';
break;
default:
printf("adapter at unexpected slot %d\n"
"unable to map to a channel\n",
aic_get_pci_slot(pci));
ahc->channel = 'A';
}
ahc->flags |= AHC_LARGE_SEEPROM;
return (0);
}
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