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freebsd-dev/sys/dev/aic7xxx/aic7770.c
Justin T. Gibbs 9bf327a70c aic7xxx.c: 
aic7xxx.h:
	Split out core chip initialization into ahc_chip_init().
	This will allow us to reset the chip correctly at times
	other than initial chip setup.

aic7770.c
aic7xxx_pci.c:
	Flesh out bus chip init methods for our two
	bus attachments and use these, in addition to
	bus suspend/resume hooks to get the core in
	better shape for handling these events.

	When disabling PCI parity error checking, use FAILDIS.
	Although the chip docs indicate that clearing PERRESPEN
	should also work, it does not.

	Auto-disable pci parity error checking after informing
	the user of AHC_PCI_TARGET_PERR_THRESH number of parity
	errors observed as a target.

aic7xxx.h:
aic7xxx_pci.c
aic7770.c
aic7xxx.c
	Add the instruction_ram_size softc field.

	Remove the now unused stack_size softc field.

	Modify ahc_loadseq to return a failure code
	and to actually check the downloaded instruction
	count against the limit set in our softc.

	Modify callers of ahc_loadseq to handle load
	failures as appropriate.

	Set instruction RAM sizes for each chip type.

aic7xxx_pci.c:
	Add some delay in the aic785X termination
	control code.  This may fix problems with
	the 2930.

	Be consistent in how we access config space
	registers.  16bit registers are accessed using
	16bit ops.

aic7xxx.c:
	Correct spelling errors.

	Have ahc_force_renegotiation() take a devinfo as is done
	in the U320 driver.  Use this argument to correct a bug
	in the selection timeout handler where we forced a renegotiation
	with the last device that had set SAVED_SCSIID.  SAVED_SCSIID
	is only updated once a selection is *sucessfull* and so is
	stale for any selection timeout.

	Cleanup the setup of the devinfo for busfree events.  We
	now use this devinfo for a call to ahc_force_renegotiation()
	at the bottom of the routine, so it must be initialized in
	all cases.

	In ahc_pause_and_flushwork(), adjust the loop so that it
	will exit in the hot-eject case even if the INT_PEND mask
	is something other than 0xFF (as it is in this driver).

	Correct a wrapping string constant.

	Call ahc_fini_scbdata() after shutdown so that
	any ahc_chip_init() routine that might access
	SCB data will not access free'd memory.

	Correctly setup our buffer tag to indicate that 39bit
	addressing is available if in 39bit addressing mode.

	Rearrange some variable declarations based on
	type size.

aic7xxx.c
aic7xxx.h:
aic7xxx.reg:
	Consistently use MAX_OFFSET for the user max syncrate
	set from non-volatile storage.  This ensures that the
	offset does not conflict with AHC_OFFSET_UNKNOWN.

	Change AHC_OFFSET_UNKNOWN to 0xFF.  This is
	a value that the curr->offset can never be,
	unlike '0' which we previously used.  This
	fixes code that only checks for a non-zero
	offset to determine if a sync negotiation
	is required since it will fire in the unknown
	case even if the goal is async.

	Change MAX_OFFSET to 0x7f which is the max
	offset U160 aic7xxx controllers can negotiate.
	This ensures that curr->offset will not
	match AHC_OFFSET_UNKNOWN.

aic7xxx_inline.h:
	Have our inline interrupt handler return with a value
	indicating whether we serviced a real interrupt.  This
	is required for Linux support.

	Return earlier if the interrupt is not for us.
2003-05-03 23:55:38 +00:00

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/*
* Product specific probe and attach routines for:
* 27/284X and aic7770 motherboard SCSI controllers
*
* Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs.
* 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/aic7770.c#30 $
*
* $FreeBSD$
*/
#ifdef __linux__
#include "aic7xxx_osm.h"
#include "aic7xxx_inline.h"
#include "aic7xxx_93cx6.h"
#else
#include <dev/aic7xxx/aic7xxx_osm.h>
#include <dev/aic7xxx/aic7xxx_inline.h>
#include <dev/aic7xxx/aic7xxx_93cx6.h>
#endif
#define ID_AIC7770 0x04907770
#define ID_AHA_274x 0x04907771
#define ID_AHA_284xB 0x04907756 /* BIOS enabled */
#define ID_AHA_284x 0x04907757 /* BIOS disabled*/
#define ID_OLV_274x 0x04907782 /* Olivetti OEM */
#define ID_OLV_274xD 0x04907783 /* Olivetti OEM (Differential) */
static int aic7770_chip_init(struct ahc_softc *ahc);
static int aic7770_suspend(struct ahc_softc *ahc);
static int aic7770_resume(struct ahc_softc *ahc);
static int aha2840_load_seeprom(struct ahc_softc *ahc);
static ahc_device_setup_t ahc_aic7770_VL_setup;
static ahc_device_setup_t ahc_aic7770_EISA_setup;;
static ahc_device_setup_t ahc_aic7770_setup;
struct aic7770_identity aic7770_ident_table [] =
{
{
ID_AHA_274x,
0xFFFFFFFF,
"Adaptec 274X SCSI adapter",
ahc_aic7770_EISA_setup
},
{
ID_AHA_284xB,
0xFFFFFFFE,
"Adaptec 284X SCSI adapter",
ahc_aic7770_VL_setup
},
{
ID_OLV_274x,
0xFFFFFFFF,
"Adaptec (Olivetti OEM) 274X SCSI adapter",
ahc_aic7770_EISA_setup
},
{
ID_OLV_274xD,
0xFFFFFFFF,
"Adaptec (Olivetti OEM) 274X Differential SCSI adapter",
ahc_aic7770_EISA_setup
},
/* Generic chip probes for devices we don't know 'exactly' */
{
ID_AIC7770,
0xFFFFFFFF,
"Adaptec aic7770 SCSI adapter",
ahc_aic7770_EISA_setup
}
};
const int ahc_num_aic7770_devs = NUM_ELEMENTS(aic7770_ident_table);
struct aic7770_identity *
aic7770_find_device(uint32_t id)
{
struct aic7770_identity *entry;
int i;
for (i = 0; i < ahc_num_aic7770_devs; i++) {
entry = &aic7770_ident_table[i];
if (entry->full_id == (id & entry->id_mask))
return (entry);
}
return (NULL);
}
int
aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io)
{
u_long l;
int error;
int have_seeprom;
u_int hostconf;
u_int irq;
u_int intdef;
error = entry->setup(ahc);
have_seeprom = 0;
if (error != 0)
return (error);
error = aic7770_map_registers(ahc, io);
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);
ahc->description = entry->name;
error = ahc_softc_init(ahc);
if (error != 0)
return (error);
ahc->bus_chip_init = aic7770_chip_init;
ahc->bus_suspend = aic7770_suspend;
ahc->bus_resume = aic7770_resume;
error = ahc_reset(ahc);
if (error != 0)
return (error);
/* Make sure we have a valid interrupt vector */
intdef = ahc_inb(ahc, INTDEF);
irq = intdef & VECTOR;
switch (irq) {
case 9:
case 10:
case 11:
case 12:
case 14:
case 15:
break;
default:
printf("aic7770_config: illegal irq setting %d\n", intdef);
return (ENXIO);
}
if ((intdef & EDGE_TRIG) != 0)
ahc->flags |= AHC_EDGE_INTERRUPT;
switch (ahc->chip & (AHC_EISA|AHC_VL)) {
case AHC_EISA:
{
u_int biosctrl;
u_int scsiconf;
u_int scsiconf1;
biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
scsiconf = ahc_inb(ahc, SCSICONF);
scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
/* Get the primary channel information */
if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
ahc->flags |= 1;
if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
ahc->flags |= AHC_USEDEFAULTS;
} else {
if ((ahc->features & AHC_WIDE) != 0) {
ahc->our_id = scsiconf1 & HWSCSIID;
if (scsiconf & TERM_ENB)
ahc->flags |= AHC_TERM_ENB_A;
} else {
ahc->our_id = scsiconf & HSCSIID;
ahc->our_id_b = scsiconf1 & HSCSIID;
if (scsiconf & TERM_ENB)
ahc->flags |= AHC_TERM_ENB_A;
if (scsiconf1 & TERM_ENB)
ahc->flags |= AHC_TERM_ENB_B;
}
}
if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS))
ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
break;
}
case AHC_VL:
{
have_seeprom = aha2840_load_seeprom(ahc);
break;
}
default:
break;
}
if (have_seeprom == 0) {
free(ahc->seep_config, M_DEVBUF);
ahc->seep_config = NULL;
}
/*
* Ensure autoflush is enabled
*/
ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
/* Setup the FIFO threshold and the bus off time */
hostconf = ahc_inb(ahc, HOSTCONF);
ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH);
ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF);
ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH;
ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF;
/*
* Generic aic7xxx initialization.
*/
error = ahc_init(ahc);
if (error != 0)
return (error);
error = aic7770_map_int(ahc, irq);
if (error != 0)
return (error);
ahc_list_lock(&l);
/*
* Link this softc in with all other ahc instances.
*/
ahc_softc_insert(ahc);
/*
* Enable the board's BUS drivers
*/
ahc_outb(ahc, BCTL, ENABLE);
ahc_list_unlock(&l);
return (0);
}
static int
aic7770_chip_init(struct ahc_softc *ahc)
{
ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd);
ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime);
ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
ahc_outb(ahc, BCTL, ENABLE);
return (ahc_chip_init(ahc));
}
static int
aic7770_suspend(struct ahc_softc *ahc)
{
return (ahc_suspend(ahc));
}
static int
aic7770_resume(struct ahc_softc *ahc)
{
return (ahc_resume(ahc));
}
/*
* Read the 284x SEEPROM.
*/
static int
aha2840_load_seeprom(struct ahc_softc *ahc)
{
struct seeprom_descriptor sd;
struct seeprom_config *sc;
int have_seeprom;
uint8_t scsi_conf;
sd.sd_ahc = ahc;
sd.sd_control_offset = SEECTL_2840;
sd.sd_status_offset = STATUS_2840;
sd.sd_dataout_offset = STATUS_2840;
sd.sd_chip = C46;
sd.sd_MS = 0;
sd.sd_RDY = EEPROM_TF;
sd.sd_CS = CS_2840;
sd.sd_CK = CK_2840;
sd.sd_DO = DO_2840;
sd.sd_DI = DI_2840;
sc = ahc->seep_config;
if (bootverbose)
printf("%s: Reading SEEPROM...", ahc_name(ahc));
have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
/*start_addr*/0, sizeof(*sc)/2);
if (have_seeprom) {
if (ahc_verify_cksum(sc) == 0) {
if(bootverbose)
printf ("checksum error\n");
have_seeprom = 0;
} else if (bootverbose) {
printf("done.\n");
}
}
if (!have_seeprom) {
if (bootverbose)
printf("%s: No SEEPROM available\n", ahc_name(ahc));
ahc->flags |= AHC_USEDEFAULTS;
} else {
/*
* Put the data we've collected down into SRAM
* where ahc_init will find it.
*/
int i;
int max_targ;
uint16_t discenable;
max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8;
discenable = 0;
for (i = 0; i < max_targ; i++){
uint8_t target_settings;
target_settings = (sc->device_flags[i] & CFXFER) << 4;
if (sc->device_flags[i] & CFSYNCH)
target_settings |= SOFS;
if (sc->device_flags[i] & CFWIDEB)
target_settings |= WIDEXFER;
if (sc->device_flags[i] & CFDISC)
discenable |= (0x01 << i);
ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);
}
ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
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;
if (sc->bios_control & CF284XEXTEND)
ahc->flags |= AHC_EXTENDED_TRANS_A;
/* Set SCSICONF info */
ahc_outb(ahc, SCSICONF, scsi_conf);
if (sc->adapter_control & CF284XSTERM)
ahc->flags |= AHC_TERM_ENB_A;
}
return (have_seeprom);
}
static int
ahc_aic7770_VL_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7770_setup(ahc);
ahc->chip |= AHC_VL;
return (error);
}
static int
ahc_aic7770_EISA_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7770_setup(ahc);
ahc->chip |= AHC_EISA;
return (error);
}
static int
ahc_aic7770_setup(struct ahc_softc *ahc)
{
ahc->channel = 'A';
ahc->channel_b = 'B';
ahc->chip = AHC_AIC7770;
ahc->features = AHC_AIC7770_FE;
ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
ahc->flags |= AHC_PAGESCBS;
ahc->instruction_ram_size = 448;
return (0);
}
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