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linux/drivers/scsi/aic7xxx/aic7xxx_pci.c

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/*
* 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#79 $
*/
#include "aic7xxx_osm.h"
#include "aic7xxx_inline.h"
#include "aic7xxx_93cx6.h"
#include "aic7xxx_pci.h"
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 AHC_PCI_IOADDR PCIR_MAPS /* I/O Address */
#define AHC_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */
#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_aic7870h_setup;
static ahc_device_setup_t ahc_aha394X_setup;
static ahc_device_setup_t ahc_aha394Xh_setup;
static ahc_device_setup_t ahc_aha494X_setup;
static ahc_device_setup_t ahc_aha494Xh_setup;
static ahc_device_setup_t ahc_aha398X_setup;
static ahc_device_setup_t ahc_aic7880_setup;
static ahc_device_setup_t ahc_aic7880h_setup;
static ahc_device_setup_t ahc_aha2940Pro_setup;
static ahc_device_setup_t ahc_aha394XU_setup;
static ahc_device_setup_t ahc_aha394XUh_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_aic7895h_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;
static const 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_aic7870h_setup
},
{
ID_AHA_3944,
ID_ALL_MASK,
"Adaptec 3944 SCSI adapter",
ahc_aha394Xh_setup
},
{
ID_AHA_4944,
ID_ALL_MASK,
"Adaptec 4944 SCSI adapter",
ahc_aha494Xh_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_aic7880h_setup
},
{
ID_AHA_3944U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 3944 Ultra SCSI adapter",
ahc_aha394XUh_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_aic7880h_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_aic7895h_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
}
};
static const u_int ahc_num_pci_devs = ARRAY_SIZE(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 device, uint16_t vendor,
uint16_t subdevice, uint16_t subvendor);
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_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);
}
const struct ahc_pci_identity *
ahc_find_pci_device(ahc_dev_softc_t pci)
{
uint64_t full_id;
uint16_t device;
uint16_t vendor;
uint16_t subdevice;
uint16_t subvendor;
const struct ahc_pci_identity *entry;
u_int i;
vendor = ahc_pci_read_config(pci, PCIR_DEVVENDOR, /*bytes*/2);
device = ahc_pci_read_config(pci, PCIR_DEVICE, /*bytes*/2);
subvendor = ahc_pci_read_config(pci, PCIR_SUBVEND_0, /*bytes*/2);
subdevice = ahc_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 (ahc_get_pci_function(pci) > 0
&& ahc_9005_subdevinfo_valid(device, vendor, subdevice, subvendor)
&& 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, const struct ahc_pci_identity *entry)
{
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;
pci_set_power_state(ahc->dev_softc, AHC_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 = ahc_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)
printk("%s: Enabling 39Bit Addressing\n",
ahc_name(ahc));
devconfig |= DACEN;
}
/* Ensure that pci error generation, a test feature, is disabled. */
devconfig |= PCIERRGENDIS;
ahc_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
/* Ensure busmastering is enabled */
command = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2);
command |= PCIM_CMD_BUSMASTEREN;
ahc_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;
/* Remember 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 =
ahc_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) {
ahc_pci_write_config(ahc->dev_softc, CSIZE_LATTIME,
0, /*bytes*/1);
ahc->pci_cachesize = 0;
}
/*
* We cannot perform ULTRA speeds without the presence
* of the external precision resistor.
*/
if ((ahc->features & AHC_ULTRA) != 0) {
uint32_t devconfig;
devconfig = ahc_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) {
printk("%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 =
ahc_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
ahc->bus_softc.pci_softc.command =
ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/1);
ahc->bus_softc.pci_softc.csize_lattime =
ahc_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);
ahc->init_level++;
/*
* Allow interrupts now that we are completely setup.
*/
return ahc_pci_map_int(ahc);
}
/*
* Test for the presence 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 = ahc_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, ahc_get_pci_function(ahc->dev_softc));
}
ahc->flags &= ~AHC_LSCBS_ENABLED;
if (large)
ahc->flags |= AHC_LSCBS_ENABLED;
devconfig = ahc_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;
ahc_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) {
printk("%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 = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2);
ahc_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 = ahc_pci_read_config(ahc->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
ahc_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 = ahc_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 = ahc_pci_read_config(ahc->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
status1, /*bytes*/1);
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
ahc_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)
printk("%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)
printk ("checksum error\n");
else
printk ("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)
printk("%s: No SEEPROM available.\n", ahc_name(ahc));
ahc->flags |= AHC_USEDEFAULTS;
kfree(ahc->seep_config);
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)
printk("%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 = ahc_pci_read_config(ahc->dev_softc,
DEVCONFIG, /*bytes*/4);
devconfig &= ~STPWLEVEL;
if ((sc->bios_control & CFSTPWLEVEL) != 0)
devconfig |= STPWLEVEL;
ahc_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)
printk("%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)
printk("%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) {
printk("%s: internal 50 cable %s present",
ahc_name(ahc),
internal50_present ? "is":"not");
if ((ahc->features & AHC_WIDE) != 0)
printk(", internal 68 cable %s present",
internal68_present ? "is":"not");
printk("\n%s: external cable %s present\n",
ahc_name(ahc),
externalcable_present ? "is":"not");
}
if (bootverbose)
printk("%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)) {
printk("%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)
printk("%s: 68 pin termination "
"Enabled\n", ahc_name(ahc));
else
printk("%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)
printk("%s: 50 pin termination "
"Enabled\n", ahc_name(ahc));
else
printk("%s: %sLow byte termination "
"Enabled\n", ahc_name(ahc),
enableSEC_low ? "Secondary "
: "");
}
}
if (enablePRI_low != 0) {
*sxfrctl1 |= STPWEN;
if (bootverbose)
printk("%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)
printk("%s: Primary High Byte "
"termination Enabled\n",
ahc_name(ahc));
}
write_brdctl(ahc, brddat);
} else {
if ((adapter_control & CFSTERM) != 0) {
*sxfrctl1 |= STPWEN;
if (bootverbose)
printk("%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)
printk("%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);
ahc_delay(500);
ahc_outb(ahc, BRDCTL, 0);
ahc_flush_device_writes(ahc);
ahc_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)) {
ahc_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 = ahc_pci_read_config(ahc->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
printk("%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++;
printk("%s: Data Parity Error Detected during address "
"or write data phase\n", ahc_name(ahc));
}
if (status1 & SSE) {
printk("%s: Signal System Error Detected\n", ahc_name(ahc));
}
if (status1 & RMA) {
printk("%s: Received a Master Abort\n", ahc_name(ahc));
}
if (status1 & RTA) {
printk("%s: Received a Target Abort\n", ahc_name(ahc));
}
if (status1 & STA) {
printk("%s: Signaled a Target Abort\n", ahc_name(ahc));
}
if (status1 & DPR) {
printk("%s: Data Parity Error has been reported via PERR#\n",
ahc_name(ahc));
}
/* Clear latched errors. */
ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
status1, /*bytes*/1);
if ((status1 & (DPE|SSE|RMA|RTA|STA|DPR)) == 0) {
printk("%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) {
printk(
"%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));
}
#ifdef CONFIG_PM
void
ahc_pci_resume(struct ahc_softc *ahc)
{
/*
* 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.
*/
ahc_pci_write_config(ahc->dev_softc, DEVCONFIG,
ahc->bus_softc.pci_softc.devconfig, /*bytes*/4);
ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
ahc->bus_softc.pci_softc.command, /*bytes*/1);
ahc_pci_write_config(ahc->dev_softc, CSIZE_LATTIME,
ahc->bus_softc.pci_softc.csize_lattime, /*bytes*/1);
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);
}
}
#endif
static int
ahc_aic785X_setup(struct ahc_softc *ahc)
{
ahc_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 = ahc_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)
{
ahc_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 = ahc_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_aic7870h_setup(struct ahc_softc *ahc)
{
int error = ahc_aic7870_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
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_aha394Xh_setup(struct ahc_softc *ahc)
{
int error = ahc_aha394X_setup(ahc);
ahc->features |= AHC_HVD;
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_aha494Xh_setup(struct ahc_softc *ahc)
{
int error = ahc_aha494X_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aic7880_setup(struct ahc_softc *ahc)
{
ahc_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 = ahc_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_aic7880h_setup(struct ahc_softc *ahc)
{
int error = ahc_aic7880_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
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_aha394XUh_setup(struct ahc_softc *ahc)
{
int error = ahc_aha394XU_setup(ahc);
ahc->features |= AHC_HVD;
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)
{
ahc_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 = ahc_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)
{
ahc_dev_softc_t pci;
uint8_t rev;
pci = ahc->dev_softc;
ahc->channel = ahc_get_pci_function(pci) == 1 ? 'B' : 'A';
/*
* The 'C' revision of the aic7895 has a few additional features.
*/
rev = ahc_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 = ahc_pci_read_config(pci, PCIR_COMMAND, /*bytes*/1);
command |= PCIM_CMD_MWRICEN;
ahc_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.
*/
ahc_pci_write_config(pci, CSIZE_LATTIME, 0, /*bytes*/1);
devconfig = ahc_pci_read_config(pci, DEVCONFIG, /*bytes*/1);
devconfig |= MRDCEN;
ahc_pci_write_config(pci, DEVCONFIG, devconfig, /*bytes*/1);
#endif
ahc->flags |= AHC_NEWEEPROM_FMT;
ahc->instruction_ram_size = 512;
return (0);
}
static int
ahc_aic7895h_setup(struct ahc_softc *ahc)
{
int error = ahc_aic7895_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aic7896_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
pci = ahc->dev_softc;
ahc->channel = ahc_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)
{
ahc_dev_softc_t pci;
pci = ahc->dev_softc;
ahc->channel = ahc_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)
{
printk("RAID functionality unsupported\n");
return (ENXIO);
}
static int
ahc_aha394XX_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
pci = ahc->dev_softc;
switch (ahc_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:
printk("adapter at unexpected slot %d\n"
"unable to map to a channel\n",
ahc_get_pci_slot(pci));
ahc->channel = 'A';
}
return (0);
}
static int
ahc_aha398XX_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
pci = ahc->dev_softc;
switch (ahc_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:
printk("adapter at unexpected slot %d\n"
"unable to map to a channel\n",
ahc_get_pci_slot(pci));
ahc->channel = 'A';
break;
}
ahc->flags |= AHC_LARGE_SEEPROM;
return (0);
}
static int
ahc_aha494XX_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
pci = ahc->dev_softc;
switch (ahc_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:
printk("adapter at unexpected slot %d\n"
"unable to map to a channel\n",
ahc_get_pci_slot(pci));
ahc->channel = 'A';
}
ahc->flags |= AHC_LARGE_SEEPROM;
return (0);
}
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