/*
* Product specific probe and attach routines for :
* 27 / 284 X 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#32 $
*
* $ FreeBSD $
*/
#include "aic7xxx_osm.h"
#include "aic7xxx_inline.h"
#include "aic7xxx_93cx6.h"
#define ID_AIC7770 0 x04907770
#define ID_AHA_274x 0 x04907771
#define ID_AHA_284xB 0 x04907756 /* BIOS enabled */
#define ID_AHA_284x 0 x04907757 /* BIOS disabled*/
#define ID_OLV_274x 0 x04907782 /* Olivetti OEM */
#define ID_OLV_274xD 0 x04907783 /* Olivetti OEM (Differential) */
static int aic7770_chip_init(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,
0 xFFFFFFFF,
"Adaptec 274X SCSI adapter" ,
ahc_aic7770_EISA_setup
},
{
ID_AHA_284xB,
0 xFFFFFFFE,
"Adaptec 284X SCSI adapter" ,
ahc_aic7770_VL_setup
},
{
ID_AHA_284x,
0 xFFFFFFFE,
"Adaptec 284X SCSI adapter (BIOS Disabled)" ,
ahc_aic7770_VL_setup
},
{
ID_OLV_274x,
0 xFFFFFFFF,
"Adaptec (Olivetti OEM) 274X SCSI adapter" ,
ahc_aic7770_EISA_setup
},
{
ID_OLV_274xD,
0 xFFFFFFFF,
"Adaptec (Olivetti OEM) 274X Differential SCSI adapter" ,
ahc_aic7770_EISA_setup
},
/* Generic chip probes for devices we don't know 'exactly' */
{
ID_AIC7770,
0 xFFFFFFFF,
"Adaptec aic7770 SCSI adapter" ,
ahc_aic7770_EISA_setup
}
};
int
aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io)
{
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;
error = ahc_reset(ahc, /*reinit*/FALSE);
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 :
printk("aic7770_config: invalid 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 ) {
kfree(ahc->seep_config);
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->init_level++;
/*
* Enable the board ' s BUS drivers
*/
ahc_outb(ahc, BCTL, ENABLE);
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));
}
/*
* Read the 284 x 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)
printk("%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)
printk ("checksum error\n" );
have_seeprom = 0 ;
} else if (bootverbose) {
printk("done.\n" );
}
}
if (!have_seeprom) {
if (bootverbose)
printk("%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 |= (0 x01 << i);
ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);
}
ahc_outb(ahc, DISC_DSB, ~(discenable & 0 xff));
ahc_outb(ahc, DISC_DSB + 1 , ~((discenable >> 8 ) & 0 xff));
ahc->our_id = sc->brtime_id & CFSCSIID;
scsi_conf = (ahc->our_id & 0 x7);
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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