freebsd-dev/sys/i386/isa/ultra14f.c
1996-01-15 16:15:27 +00:00

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/*
* Ported for use with the UltraStor 14f by Gary Close (gclose@wvnvms.wvnet.edu)
* Slight fixes to timeouts to run with the 34F
* Thanks to Julian Elischer for advice and help with this port.
*
* Written by Julian Elischer (julian@tfs.com)
* for TRW Financial Systems for use under the MACH(2.5) operating system.
*
* TRW Financial Systems, in accordance with their agreement with Carnegie
* Mellon University, makes this software available to CMU to distribute
* or use in any manner that they see fit as long as this message is kept with
* the software. For this reason TFS also grants any other persons or
* organisations permission to use or modify this software.
*
* TFS supplies this software to be publicly redistributed
* on the understanding that TFS is not responsible for the correct
* functioning of this software in any circumstances.
*
* commenced: Sun Sep 27 18:14:01 PDT 1992
* slight mod to make work with 34F as well: Wed Jun 2 18:05:48 WST 1993
*
* today: Fri Jun 2 17:21:03 EST 1994
* added 24F support ++sg
*
* $Id: ultra14f.c,v 1.44 1996/01/07 19:22:39 gibbs Exp $
*/
#include <sys/types.h>
#ifdef KERNEL /* don't laugh.. this compiles to a program too.. look */
#include <uha.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/malloc.h>
#include <sys/buf.h>
#include <sys/proc.h>
#include <sys/devconf.h>
#include <machine/clock.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <i386/isa/isa_device.h>
#endif /*KERNEL */
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
/* */
#ifndef KERNEL
#define NUHA 1
#endif /*KERNEL */
typedef struct {
unsigned char addr[4];
} physaddr;
typedef struct {
unsigned char len[4];
} physlen;
#define KVTOPHYS(x) vtophys(x)
#define UHA_MSCP_MAX 32 /* store up to 32MSCPs at any one time
* MAX = ?
*/
#define MSCP_HASH_SIZE 32 /* when we have a physical addr. for
* a mscp and need to find the mscp in
* space, look it up in the hash table
*/
#define MSCP_HASH_SHIFT 9 /* only hash on multiples of 512 */
#define MSCP_HASH(x) ((((long int)(x))>>MSCP_HASH_SHIFT) % MSCP_HASH_SIZE)
extern int hz;
#define UHA_NSEG 33 /* number of dma segments supported */
/************************** board definitions *******************************/
struct uha_reg
{
int id; /* product id reg */
int type; /* product type reg */
int ectl; /* EISA expansion control bits */
int config; /* configuration bits */
int lmask; /* local doorbell mask reg */
int lint; /* local doorbell int/stat reg */
int smask; /* system doorbell mask reg */
int sint; /* system doorbell int/stat reg */
int ogmcmd; /* outgoing mail command */
int ogmptr; /* outgoing mail ptr */
int icmcmd; /* incoming mail command */
int icmptr; /* incoming mail ptr */
};
struct uha_bits
{
/* uha_lint (read) */
unsigned char ldip;
/* uha_lint (write) */
unsigned char adrst;
unsigned char sbrst;
unsigned char asrst;
unsigned char abort;
unsigned char ogmint;
/* uha_sint (read) */
unsigned char sintp;
unsigned char abort_succ;
unsigned char abort_fail;
/* uha_sint (write) */
unsigned char abort_ack;
unsigned char icm_ack;
};
/*
* UHA_LINT bits (read)
*/
#define UHA_LDIP 0x80 /* local doorbell int pending */
#define U24_LDIP 0x02
/*
* UHA_LINT bits (write)
*/
#define UHA_ADRST 0x40 /* adapter soft reset */
#define UHA_SBRST 0x20 /* scsi bus reset */
#define UHA_ASRST 0x60 /* adapter and scsi reset */
#define UHA_ABORT 0x10 /* abort MSCP */
#define UHA_OGMINT 0x01 /* tell adapter to get mail */
#define U24_SBRST 0x40 /* scsi bus reset */
#define U24_ADRST 0x80 /* adapter soft reset */
#define U24_ASRST 0xc0 /* adapter and scsi reset */
#define U24_ABORT 0x10 /* same? */
#define U24_OGMINT 0x02 /* enable OGM interrupt */
/*
* UHA_SMASK bits (read)
*/
#define UHA_SINTEN 0x80 /* system doorbell interupt Enabled */
#define UHA_ABORT_COMPLETE_EN 0x10 /* abort MSCP command complete int Enabled */
#define UHA_ICM_ENABLED 0x01 /* ICM interrupt enabled */
/*
* UHA_SMASK bits (write)
*/
#define UHA_ENSINT 0x80 /* enable system doorbell interrupt */
#define UHA_EN_ABORT_COMPLETE 0x10 /* enable abort MSCP complete int */
#define UHA_ENICM 0x01 /* enable ICM interrupt */
/*
* UHA_SINT bits (read)
*/
#define UHA_SINTP 0x80 /* system doorbell int pending */
#define UHA_ABORT_SUCC 0x10 /* abort MSCP successful */
#define UHA_ABORT_FAIL 0x18 /* abort MSCP failed */
#define U24_SINTP 0x02 /* system doorbell int pending */
#define U24_ABORT_SUCC 0x10 /* same? */
#define U24_ABORT_FAIL 0x18 /* same? */
/*
* UHA_SINT bits (write)
*/
#define UHA_ABORT_ACK 0x18 /* acknowledge status and clear */
#define UHA_ICM_ACK 0x01 /* acknowledge ICM and clear */
#define U24_ABORT_ACK 0x18 /* same */
#define U24_ICM_ACK 0x02 /* 24F acknowledge ICM and clear */
/*
* UHA_CONF1 bits (read only)
*/
#define UHA_DMA_CH5 0x00 /* DMA channel 5 */
#define UHA_DMA_CH6 0x40 /* 6 */
#define UHA_DMA_CH7 0x80 /* 7 */
#define UHA_IRQ15 0x00 /* IRQ 15 */
#define UHA_IRQ14 0x10 /* 14 */
#define UHA_IRQ11 0x20 /* 11 */
#define UHA_IRQ10 0x30 /* 10 */
#define EISA_CONFIG 0x0c80 /* Configuration base port */
#define EISA_DISABLE 0x01 /* EISA disable bit */
/*
* ha_status error codes
*/
#define UHA_NO_ERR 0x00 /* No error supposedly */
#define UHA_SBUS_ABORT_ERR 0x84 /* scsi bus abort error */
#define UHA_SBUS_TIMEOUT 0x91 /* scsi bus selection timeout */
#define UHA_SBUS_OVER_UNDER 0x92 /* scsi bus over/underrun */
#define UHA_BAD_SCSI_CMD 0x96 /* illegal scsi command */
#define UHA_AUTO_SENSE_ERR 0x9b /* auto request sense err */
#define UHA_SBUS_RES_ERR 0xa3 /* scsi bus reset error */
#define UHA_BAD_SG_LIST 0xff /* invalid scatter gath list */
struct uha_dma_seg {
physaddr addr;
physlen len;
};
struct mscp {
unsigned char opcode:3;
#define U14_HAC 0x01 /* host adapter command */
#define U14_TSP 0x02 /* target scsi pass through command */
#define U14_SDR 0x04 /* scsi device reset */
unsigned char xdir:2; /* xfer direction */
#define U14_SDET 0x00 /* determined by scsi command */
#define U14_SDIN 0x01 /* scsi data in */
#define U14_SDOUT 0x02 /* scsi data out */
#define U14_NODATA 0x03 /* no data xfer */
unsigned char dcn:1; /* disable disconnect for this command */
unsigned char ca:1; /* cache control */
unsigned char sgth:1; /* scatter gather flag */
unsigned char target:3;
unsigned char chan:2; /* scsi channel (always 0 for 14f) */
unsigned char lun:3;
physaddr data;
physlen datalen;
physaddr link;
unsigned char link_id;
unsigned char sg_num; /*number of scat gath segs */
/*in s-g list if sg flag is */
/*set. starts at 1, 8bytes per */
unsigned char senselen;
unsigned char cdblen;
unsigned char cdb[12];
unsigned char ha_status;
unsigned char targ_status;
physaddr sense; /* if 0 no auto sense */
/*-----------------end of hardware supported fields----------------*/
struct mscp *next; /* in free list */
struct scsi_xfer *xs; /* the scsi_xfer for this cmd */
int flags;
#define MSCP_FREE 0
#define MSCP_ACTIVE 1
#define MSCP_ABORTED 2
struct uha_dma_seg uha_dma[UHA_NSEG];
struct scsi_sense_data mscp_sense;
struct mscp *nexthash;
long int hashkey;
};
static struct uha_data {
int flags;
#define UHA_INIT 0x01
#define UHA_24F 0x02
int baseport;
struct mscp *mscphash[MSCP_HASH_SIZE];
struct mscp *free_mscp;
int unit;
int our_id; /* our scsi id */
int vect;
int dma;
int nummscps;
struct scsi_link sc_link;
struct uha_reg *ur;
struct uha_bits *ub;
} *uhadata[NUHA];
static int uha_abort __P((struct uha_data *uha, struct mscp *mscp));
static u_int32 uha_adapter_info __P((int unit));
static int uha_attach __P((struct isa_device *dev));
static void uha_done __P((struct uha_data *uha, struct mscp *mscp));
static void uha_free_mscp __P((struct uha_data *uha, struct mscp *mscp,
int flags));
static struct mscp *
uha_get_mscp __P((struct uha_data *uha, int flags));
static int uha_init __P((struct uha_data *uha));
static int uha24_init __P((struct uha_data *uha));
static void uhaminphys __P((struct buf *bp));
static struct mscp *
uha_mscp_phys_kv __P((struct uha_data *uha, long mscp_phys));
static int uha_poll __P((struct uha_data *uha, int wait));
#ifdef UHADEBUG
static void uha_print_active_mscp __P((struct uha_data *uha));
static void uha_print_mscp __P((struct mscp *mscp));
#endif
static int uhaprobe __P((struct isa_device *dev));
static int32 uha_scsi_cmd __P((struct scsi_xfer *xs));
static void uha_send_mbox __P((struct uha_data *uha, struct mscp *mscp));
static timeout_t
uha_timeout;
static struct mscp *cheat;
static unsigned long int scratch;
#define EISA_MAX_SLOTS 16 /* XXX This should go into a comon header */
static uha_slot = 0; /* slot last board was found in */
static uha_unit = 0;
#define UHA_SHOWMSCPS 0x01
#define UHA_SHOWINTS 0x02
#define UHA_SHOWCMDS 0x04
#define UHA_SHOWMISC 0x08
#define FAIL 1
#define SUCCESS 0
#define PAGESIZ 4096
#ifdef KERNEL
struct isa_driver uhadriver =
{
uhaprobe,
uha_attach,
"uha"
};
static struct scsi_adapter uha_switch =
{
uha_scsi_cmd,
uhaminphys,
0,
0,
uha_adapter_info,
"uha",
{ 0, 0 }
};
/* the below structure is so we have a default dev struct for out link struct */
static struct scsi_device uha_dev =
{
NULL, /* Use default error handler */
NULL, /* have a queue, served by this */
NULL, /* have no async handler */
NULL, /* Use default 'done' routine */
"uha",
0,
{ 0, 0 }
};
static struct kern_devconf kdc_uha[NUHA] = { {
0, 0, 0, /* filled in by dev_attach */
"uha", 0, { MDDT_ISA, 0, "bio" },
isa_generic_externalize, 0, 0, ISA_EXTERNALLEN,
&kdc_isa0, /* parent */
0, /* parentdata */
DC_UNCONFIGURED, /* state */
"UltraStore 14F or 34F SCSI host adapter",
DC_CLS_MISC /* host adapters aren't special */
} };
static inline void
uha_registerdev(struct isa_device *id)
{
if(id->id_unit)
kdc_uha[id->id_unit] = kdc_uha[0];
kdc_uha[id->id_unit].kdc_unit = id->id_unit;
kdc_uha[id->id_unit].kdc_parentdata = id;
dev_attach(&kdc_uha[id->id_unit]);
}
#endif /*KERNEL */
#ifndef KERNEL
main()
{
printf("uha_data is %d bytes\n", sizeof(struct uha_data));
printf("mscp is %d bytes\n", sizeof(struct mscp));
}
#else /*KERNEL*/
/*
* Function to send a command out through a mailbox
*/
static void
uha_send_mbox(struct uha_data *uha, struct mscp *mscp)
{
int spincount = 100000; /* 1s should be enough */
struct uha_reg *ur = uha->ur;
struct uha_bits *ub = uha->ub;
int s = splbio();
while (--spincount) {
if ((inb(ur->lint) & ub->ldip) == 0)
break;
DELAY(100);
}
if (spincount == 0) {
printf("uha%d: uha_send_mbox, board not responding\n",
uha->unit);
Debugger("ultra14f");
}
outl(ur->ogmptr, KVTOPHYS(mscp));
if (uha->flags & UHA_24F) outb(ur->ogmcmd, 1);
outb(ur->lint, ub->ogmint);
splx(s);
}
/*
* Function to send abort to 14f
*/
int
uha_abort(struct uha_data *uha, struct mscp *mscp)
{
int spincount = 100; /* 1 mSec */
int abortcount = 200000; /*2 secs */
struct uha_reg *ur = uha->ur;
struct uha_bits *ub = uha->ub;
int s = splbio();
while (--spincount) {
if ((inb(ur->lint) & ub->ldip) == 0)
break;
DELAY(10);
}
if (spincount == 0) {
printf("uha%d: uha_abort, board not responding\n", uha->unit);
Debugger("ultra14f");
}
outl(ur->ogmptr,KVTOPHYS(mscp));
if (uha->flags & UHA_24F) outb(ur->ogmcmd, 1);
outb(ur->lint, ub->abort);
while (--abortcount) {
if (inb(ur->sint) & ub->abort_fail)
break;
DELAY(10);
}
if (abortcount == 0) {
printf("uha%d: uha_abort, board not responding\n", uha->unit);
Debugger("ultra14f");
}
if ((inb(ur->sint) & 0x10) != 0) {
outb(ur->sint, ub->abort_ack);
splx(s);
return (1);
} else {
outb(ur->sint, ub->abort_ack);
splx(s);
return (0);
}
}
/*
* Function to poll for command completion when in poll mode.
*
* wait = timeout in msec
*/
static int
uha_poll(struct uha_data *uha, int wait)
{
struct uha_reg *ur = uha->ur;
struct uha_bits *ub = uha->ub;
int stport = ur->sint;
while (--wait) {
if (inb(stport) & ub->sintp)
break;
DELAY(1000); /* 1 mSec per loop */
}
if (wait == 0) {
printf("uha%d: uha_poll, board not responding\n", uha->unit);
return (EIO);
}
uhaintr(uha->unit);
return (0);
}
/*
* Check if the device can be found at the port given and if so, set it up
* ready for further work as an argument, takes the isa_device structure
* from autoconf.c
*/
int
uhaprobe(dev)
struct isa_device *dev;
{
int unit = uha_unit;
struct uha_data *uha;
dev->id_unit = unit; /* XXX */
/*
* find unit and check we have that many defined
*/
if (unit >= NUHA) {
printf("uha: unit number (%d) too high\n", unit);
return (0);
}
dev->id_unit = unit;
/*
* Allocate a storage area for us
*/
if (uhadata[unit]) {
printf("uha%d: memory already allocated\n", unit);
return 0;
}
uha = malloc(sizeof(struct uha_data), M_TEMP, M_NOWAIT);
if (!uha) {
printf("uha%d: cannot malloc!\n", unit);
return 0;
}
bzero(uha, sizeof(struct uha_data));
uha->ur = malloc(sizeof(struct uha_reg), M_TEMP, M_NOWAIT);
if (!uha->ur) {
printf("uha%d: cannot malloc!\n", unit);
return 0;
}
bzero(uha->ur, sizeof(struct uha_reg));
uha->ub = malloc(sizeof(struct uha_bits), M_TEMP, M_NOWAIT);
if (!uha->ub) {
printf("uha%d: cannot malloc!\n", unit);
return 0;
}
bzero(uha->ub, sizeof(struct uha_bits));
uha_registerdev(dev);
uhadata[unit] = uha;
uha->unit = unit;
uha->baseport = dev->id_iobase;
/*
* Try initialise a unit at this location
* sets up dma and bus speed, loads uha->vect
*/
if (uha_init(uha) != 0 && uha24_init(uha) != 0) {
uhadata[unit] = NULL;
free(uha->ur, M_TEMP);
free(uha->ub, M_TEMP);
free(uha, M_TEMP);
return (0);
}
/* if it's there put in its interrupt and DRQ vectors */
dev->id_irq = (1 << uha->vect);
dev->id_drq = uha->dma;
dev->id_iobase = uha->baseport;
uha_unit++;
return (16);
}
/*
* Attach all the sub-devices we can find
*/
int
uha_attach(dev)
struct isa_device *dev;
{
int unit = dev->id_unit;
struct uha_data *uha = uhadata[unit];
struct scsibus_data *scbus;
/*
* fill in the prototype scsi_link.
*/
uha->sc_link.adapter_unit = unit;
uha->sc_link.adapter_targ = uha->our_id;
uha->sc_link.adapter_softc = uha;
uha->sc_link.adapter = &uha_switch;
uha->sc_link.device = &uha_dev;
uha->sc_link.flags = SDEV_BOUNCE;
/*
* Prepare the scsibus_data area for the upperlevel
* scsi code.
*/
scbus = scsi_alloc_bus();
if(!scbus)
return 0;
scbus->adapter_link = &uha->sc_link;
kdc_uha[unit].kdc_state = DC_BUSY;
/*
* ask the adapter what subunits are present
*/
scsi_attachdevs(scbus);
return 1;
}
/*
* Return some information to the caller about
* the adapter and it's capabilities
*/
u_int32
uha_adapter_info(unit)
int unit;
{
return (2); /* 2 outstanding requests at a time per device */
}
/*
* Catch an interrupt from the adaptor
*/
void
uhaintr(unit)
int unit;
{
struct uha_data *uha = uhadata[unit];
struct mscp *mscp;
u_char uhastat;
unsigned long int mboxval;
struct uha_reg *ur;
struct uha_bits *ub;
int port;
ur = uha->ur;
ub = uha->ub;
port = uha->baseport;
#ifdef UHADEBUG
printf("uhaintr ");
#endif /*UHADEBUG */
while ((uhastat = inb(ur->sint)) & ub->sintp) {
/*
* First get all the information and then
* acknowledge the interrupt
*/
mboxval = inl(ur->icmptr);
outb(ur->sint, ub->icm_ack);
if (uha->flags & UHA_24F) outb(ur->icmcmd, 0);
#ifdef UHADEBUG
printf("status = 0x%x ", uhastat);
#endif /*UHADEBUG*/
/*
* Process the completed operation
*/
mscp = uha_mscp_phys_kv(uha, mboxval);
if (!mscp) {
printf("uha: BAD MSCP RETURNED\n");
return; /* whatever it was, it'll timeout */
}
untimeout(uha_timeout, (caddr_t)mscp);
uha_done(uha, mscp);
}
}
/*
* We have a mscp which has been processed by the adaptor, now we look to see
* how the operation went.
*/
void
uha_done(uha, mscp)
struct uha_data *uha;
struct mscp *mscp;
{
struct scsi_sense_data *s1, *s2;
struct scsi_xfer *xs = mscp->xs;
SC_DEBUG(xs->sc_link, SDEV_DB2, ("uha_done\n"));
/*
* Otherwise, put the results of the operation
* into the xfer and call whoever started it
*/
if (((mscp->ha_status != UHA_NO_ERR) || (mscp->targ_status != SCSI_OK))
&& ((xs->flags & SCSI_ERR_OK) == 0)) {
s1 = &(mscp->mscp_sense);
s2 = &(xs->sense);
if (mscp->ha_status != UHA_NO_ERR) {
switch (mscp->ha_status) {
case UHA_SBUS_ABORT_ERR:
case UHA_SBUS_TIMEOUT: /* No sel response */
SC_DEBUG(xs->sc_link, SDEV_DB3,
("abort or timeout; ha_status 0x%x\n",
mscp->ha_status));
xs->error = XS_TIMEOUT;
break;
case UHA_SBUS_OVER_UNDER:
SC_DEBUG(xs->sc_link, SDEV_DB3,
("scsi bus xfer over/underrun\n"));
xs->error = XS_DRIVER_STUFFUP;
break;
default: /* Other scsi protocol messes */
xs->error = XS_DRIVER_STUFFUP;
printf("uha%d: unexpected ha_status 0x%x (target status 0x%x)\n",
uha->unit, mscp->ha_status,
mscp->targ_status);
break;
}
} else {
/* Target status problem */
SC_DEBUG(xs->sc_link, SDEV_DB3, ("target err 0x%x\n",
mscp->targ_status));
switch (mscp->targ_status) {
case 0x02:
*s2 = *s1;
xs->error = XS_SENSE;
break;
case 0x08:
xs->error = XS_BUSY;
break;
default:
printf("uha%d: unexpected targ_status 0x%x\n",
uha->unit, mscp->targ_status);
xs->error = XS_DRIVER_STUFFUP;
break;
}
}
}
else {
/* All went correctly OR errors expected */
xs->resid = 0;
xs->error = 0;
}
xs->flags |= ITSDONE;
uha_free_mscp(uha, mscp, xs->flags);
scsi_done(xs);
}
/*
* A mscp (and hence a mbx-out) is put onto the free list.
*/
void
uha_free_mscp(uha, mscp, flags)
struct uha_data *uha;
struct mscp *mscp;
int flags;
{
unsigned int opri = 0;
if (!(flags & SCSI_NOMASK))
opri = splbio();
mscp->next = uha->free_mscp;
uha->free_mscp = mscp;
mscp->flags = MSCP_FREE;
/*
* If there were none, wake abybody waiting for
* one to come free, starting with queued entries
*/
if (!mscp->next) {
wakeup((caddr_t)&uha->free_mscp);
}
if (!(flags & SCSI_NOMASK))
splx(opri);
}
/*
* Get a free mscp
*
* If there are none, see if we can allocate a new one. If so, put it in the
* hash table too otherwise either return an error or sleep.
*/
static struct mscp *
uha_get_mscp(uha, flags)
struct uha_data *uha;
int flags;
{
unsigned opri = 0;
struct mscp *mscpp;
int hashnum;
if (!(flags & SCSI_NOMASK))
opri = splbio();
/*
* If we can and have to, sleep waiting for one to come free
* but only if we can't allocate a new one
*/
while (!(mscpp = uha->free_mscp)) {
if (uha->nummscps < UHA_MSCP_MAX) {
if (mscpp = (struct mscp *)malloc(sizeof(struct mscp),
M_TEMP,
M_NOWAIT)) {
bzero(mscpp, sizeof(struct mscp));
uha->nummscps++;
mscpp->flags = MSCP_ACTIVE;
/*
* put in the phystokv hash table
* Never gets taken out.
*/
mscpp->hashkey = KVTOPHYS(mscpp);
hashnum = MSCP_HASH(mscpp->hashkey);
mscpp->nexthash = uha->mscphash[hashnum];
uha->mscphash[hashnum] = mscpp;
} else {
printf("uha%d: Can't malloc MSCP\n", uha->unit);
}
goto gottit;
} else {
if (!(flags & SCSI_NOSLEEP)) {
tsleep((caddr_t)&uha->free_mscp, PRIBIO,
"uhamscp", 0);
}
}
}
if (mscpp) {
/* Get MSCP from from free list */
uha->free_mscp = mscpp->next;
mscpp->flags = MSCP_ACTIVE;
}
gottit:
if (!(flags & SCSI_NOMASK))
splx(opri);
return (mscpp);
}
/*
* given a physical address, find the mscp that it corresponds to.
*/
static struct mscp *
uha_mscp_phys_kv(uha, mscp_phys)
struct uha_data *uha;
long int mscp_phys;
{
int hashnum = MSCP_HASH(mscp_phys);
struct mscp *mscpp = uha->mscphash[hashnum];
while (mscpp) {
if (mscpp->hashkey == mscp_phys)
break;
mscpp = mscpp->nexthash;
}
return mscpp;
}
/*
* Start the board, ready for normal operation
*/
int
uha_init(uha)
struct uha_data *uha;
{
volatile unsigned char model;
volatile unsigned char submodel;
unsigned char config_reg1;
unsigned char config_reg2;
unsigned char dma_ch;
unsigned char irq_ch;
unsigned char uha_id;
int port = uha->baseport;
int resetcount = 4000; /* 4 secs? */
struct uha_reg *ur = uha->ur;
struct uha_bits *ub = uha->ub;
/*
* Prepare to use a 14/34F.
*/
ur->id = port + 0x04;
ur->type = port + 0x00; /* 24F only */
ur->ectl = port + 0x00; /* 24F only */
ur->config = port + 0x06; /* 0-1 for 14F */
ur->lmask = port + 0x00;
ur->lint = port + 0x01;
ur->smask = port + 0x02;
ur->sint = port + 0x03;
ur->ogmcmd = port + 0x00; /* 24F only */
ur->ogmptr = port + 0x08;
ur->icmcmd = port + 0x00; /* 24F only */
ur->icmptr = port + 0x0c;
ub->ldip = UHA_LDIP;
ub->adrst = UHA_ADRST;
ub->sbrst = UHA_SBRST;
ub->asrst = UHA_ASRST;
ub->abort = UHA_ABORT;
ub->ogmint = UHA_OGMINT;
ub->sintp = UHA_SINTP;
ub->abort_succ = UHA_ABORT_SUCC;
ub->abort_fail = UHA_ABORT_FAIL;
ub->abort_ack = UHA_ABORT_ACK;
ub->icm_ack = UHA_ICM_ACK;
model = inb(ur->id);
submodel = inb(ur->id + 1);
if ((model != 0x56) & (submodel != 0x40)) return(ENXIO);
printf("uha%d: reading board settings, ", uha->unit);
config_reg1 = inb(ur->config);
config_reg2 = inb(ur->config + 1);
dma_ch = (config_reg1 & 0xc0);
irq_ch = (config_reg1 & 0x30);
uha_id = (config_reg2 & 0x07);
switch (dma_ch) {
case UHA_DMA_CH5:
uha->dma = 5;
printf("dma=5 ");
break;
case UHA_DMA_CH6:
uha->dma = 6;
printf("dma=6 ");
break;
case UHA_DMA_CH7:
uha->dma = 7;
printf("dma=7 ");
break;
default:
printf("illegal dma jumper setting\n");
return (EIO);
}
switch (irq_ch) {
case UHA_IRQ10:
uha->vect = 10;
printf("int=10 ");
break;
case UHA_IRQ11:
uha->vect = 11;
printf("int=11 ");
break;
case UHA_IRQ14:
uha->vect = 14;
printf("int=14 ");
break;
case UHA_IRQ15:
uha->vect = 15;
printf("int=15 ");
break;
default:
printf("illegal int jumper setting\n");
return (EIO);
}
/* who are we on the scsi bus */
printf("id=%x\n", uha_id);
uha->our_id = uha_id;
/*
* Note that we are going and return (to probe)
*/
outb(ur->lint, ub->asrst);
while (--resetcount) {
if (inb(ur->lint))
break;
DELAY(1000); /* 1 mSec per loop */
}
if (resetcount == 0) {
printf("uha%d: board timed out during reset\n", uha->unit);
return (ENXIO);
}
outb(ur->smask, 0x81); /* make sure interrupts are enabled */
uha->flags |= UHA_INIT;
return (0);
}
/*
* Initialize an Ultrastor 24F
*/
int
uha24_init(uha)
struct uha_data *uha;
{
unsigned char p0, p1, p2, p3, p5, p7;
unsigned char id[7], rev, haid;
int port = 0, irq;
int resetcount = 4000;
struct uha_reg *ur = uha->ur;
struct uha_bits *ub = uha->ub;
/* Search for the 24F's product ID */
uha_slot++;
while (uha_slot < EISA_MAX_SLOTS) {
/*
* Prepare to use a 24F.
*/
port = EISA_CONFIG | (uha_slot << 12);
ur->id = port + 0x00;
ur->type = port + 0x02;
ur->ectl = port + 0x04;
ur->config = port + 0x05; /* 0-2 for 24F */
ur->lmask = port + 0x0c;
ur->lint = port + 0x0d;
ur->smask = port + 0x0e;
ur->sint = port + 0x0f;
ur->ogmcmd = port + 0x16;
ur->ogmptr = port + 0x17;
ur->icmcmd = port + 0x1b;
ur->icmptr = port + 0x1c;
ub->ldip = U24_LDIP;
ub->adrst = U24_ADRST;
ub->sbrst = U24_SBRST;
ub->asrst = U24_ASRST;
ub->abort = U24_ABORT;
ub->ogmint = U24_OGMINT;
ub->sintp = U24_SINTP;
ub->abort_succ = U24_ABORT_SUCC;
ub->abort_fail = U24_ABORT_FAIL;
ub->abort_ack = U24_ABORT_ACK;
ub->icm_ack = U24_ICM_ACK;
/*
* Make sure an EISA card is installed in this slot,
* and if it is make sure that the card is enabled.
*/
outb(ur->id, 0xff);
p0 = inb(ur->id);
if ((p0 == 0xff) ||
((p0 & 0x80) != 0) ||
((inb(ur->ectl) & EISA_DISABLE) == 0)) {
uha_slot++;
continue;
}
/* Found an enabled card. Grab the product ID. */
p1 = inb(ur->id+1);
p2 = inb(ur->type);
p3 = inb(ur->type+1);
id[0] = 0x40 + ((p0 >> 2) & 0x1f);
id[1] = 0x40 + (((p0 & 0x03) << 3) | ((p1 >> 5) & 0x07));
id[2] = 0x40 + (p1 & 0x1f);
id[3] = hex2ascii((p2 >> 4) & 0x0f);
id[4] = hex2ascii(p2 & 0x0f);
id[5] = hex2ascii((p3 >> 4) & 0x0f);
id[6] = '\0';
rev = p3 & 0xf;
/* We only want the 24F product ID. */
if (!strcmp(id, "USC024")) break;
uha_slot++;
}
if (uha_slot == EISA_MAX_SLOTS) return(ENODEV);
/* We have the card! Grab remaining config. */
p5 = inb(ur->config);
p7 = inb(ur->config+2);
switch (p5 & 0xf0) {
case 0x10: irq = 15; break;
case 0x20: irq = 14; break;
case 0x40: irq = 11; break;
case 0x80: irq = 10; break;
default:
printf("uha%d: bad 24F irq\n", uha->unit);
return(ENXIO);
}
haid = (p7 & 0x07);
printf("uha%d: UltraStor 24F int=%d id=%d\n", uha->unit, irq, haid);
/* Issue SCSI and adapter reset */
outb(ur->lint, ub->asrst);
while (--resetcount) {
if (inb(ur->lint))
break;
DELAY(1000); /* 1 mSec per loop */
}
if (resetcount == 0) {
printf("uha%d: board timed out during reset\n", uha->unit);
return (ENXIO);
}
outb(ur->smask, 0xc2); /* make sure interrupts are enabled */
uha->flags |= (UHA_INIT | UHA_24F);
uha->baseport = port;
uha->our_id = haid;
uha->vect = irq;
uha->dma = -1;
return(0);
}
#ifndef min
#define min(x,y) (x < y ? x : y)
#endif /* min */
void
uhaminphys(bp)
struct buf *bp;
{
if (bp->b_bcount > ((UHA_NSEG - 1) * PAGESIZ)) {
bp->b_bcount = ((UHA_NSEG - 1) * PAGESIZ);
}
}
/*
* start a scsi operation given the command and the data address. Also
* needs the unit, target and lu.
*/
static int32
uha_scsi_cmd(xs)
struct scsi_xfer *xs;
{
struct mscp *mscp;
struct uha_dma_seg *sg;
int seg; /* scatter gather seg being worked on */
int thiskv;
unsigned long int thisphys, nextphys;
int bytes_this_seg, bytes_this_page, datalen, flags;
struct uha_data *uha;
int s;
unsigned long int templen;
uha = (struct uha_data *)xs->sc_link->adapter_softc;
SC_DEBUG(xs->sc_link, SDEV_DB2, ("uha_scsi_cmd\n"));
/*
* get a mscp (mbox-out) to use. If the transfer
* is from a buf (possibly from interrupt time)
* then we can't allow it to sleep
*/
flags = xs->flags;
if (xs->bp)
flags |= (SCSI_NOSLEEP); /* just to be sure */
if (flags & ITSDONE) {
printf("uha%d: Already done?", uha->unit);
xs->flags &= ~ITSDONE;
}
if (!(flags & INUSE)) {
printf("uha%d: Not in use?", uha->unit);
xs->flags |= INUSE;
}
if (!(mscp = uha_get_mscp(uha, flags))) {
xs->error = XS_DRIVER_STUFFUP;
return (TRY_AGAIN_LATER);
}
cheat = mscp;
SC_DEBUG(xs->sc_link, SDEV_DB3, ("start mscp(%p)\n", mscp));
mscp->xs = xs;
/*
* Put all the arguments for the xfer in the mscp
*/
if (flags & SCSI_RESET) {
mscp->opcode = 0x04;
mscp->ca = 0x01;
} else {
mscp->opcode = 0x02;
mscp->ca = 0x01;
}
if (flags & SCSI_DATA_IN) {
mscp->xdir = 0x01;
}
if (flags & SCSI_DATA_OUT) {
mscp->xdir = 0x02;
}
#ifdef GOTTABEJOKING
if (xs->sc_link->lun != 0) {
xs->error = XS_DRIVER_STUFFUP;
uha_free_mscp(uha, mscp, flags);
return (HAD_ERROR);
}
#endif
mscp->dcn = 0x00;
mscp->chan = 0x00;
mscp->target = xs->sc_link->target;
mscp->lun = xs->sc_link->lun;
mscp->link.addr[0] = 0x00;
mscp->link.addr[1] = 0x00;
mscp->link.addr[2] = 0x00;
mscp->link.addr[3] = 0x00;
mscp->link_id = 0x00;
mscp->cdblen = xs->cmdlen;
scratch = KVTOPHYS(&(mscp->mscp_sense));
mscp->sense.addr[0] = (scratch & 0xff);
mscp->sense.addr[1] = ((scratch >> 8) & 0xff);
mscp->sense.addr[2] = ((scratch >> 16) & 0xff);
mscp->sense.addr[3] = ((scratch >> 24) & 0xff);
mscp->senselen = sizeof(mscp->mscp_sense);
mscp->ha_status = 0x00;
mscp->targ_status = 0x00;
if (xs->datalen) { /* should use S/G only if not zero length */
scratch = KVTOPHYS(mscp->uha_dma);
mscp->data.addr[0] = (scratch & 0xff);
mscp->data.addr[1] = ((scratch >> 8) & 0xff);
mscp->data.addr[2] = ((scratch >> 16) & 0xff);
mscp->data.addr[3] = ((scratch >> 24) & 0xff);
sg = mscp->uha_dma;
seg = 0;
mscp->sgth = 0x01;
#ifdef TFS
if (flags & SCSI_DATA_UIO) {
iovp = ((struct uio *) xs->data)->uio_iov;
datalen = ((struct uio *) xs->data)->uio_iovcnt;
xs->datalen = 0;
while ((datalen) && (seg < UHA_NSEG)) {
scratch = (unsigned long) iovp->iov_base;
sg->addr.addr[0] = (scratch & 0xff);
sg->addr.addr[1] = ((scratch >> 8) & 0xff);
sg->addr.addr[2] = ((scratch >> 16) & 0xff);
sg->addr.addr[3] = ((scratch >> 24) & 0xff);
xs->datalen += *(unsigned long *) sg->len.len = iovp->iov_len;
SC_DEBUGN(xs->sc_link, SDEV_DB4, ("(0x%x@0x%x)",
iovp->iov_len,
iovp->iov_base));
sg++;
iovp++;
seg++;
datalen--;
}
} else
#endif /*TFS */
{
/*
* Set up the scatter gather block
*/
SC_DEBUG(xs->sc_link, SDEV_DB4,
("%ld @%p:- ", xs->datalen, xs->data));
datalen = xs->datalen;
thiskv = (int) xs->data;
thisphys = KVTOPHYS(thiskv);
templen = 0;
while ((datalen) && (seg < UHA_NSEG)) {
bytes_this_seg = 0;
/* put in the base address */
sg->addr.addr[0] = (thisphys & 0xff);
sg->addr.addr[1] = ((thisphys >> 8) & 0xff);
sg->addr.addr[2] = ((thisphys >> 16) & 0xff);
sg->addr.addr[3] = ((thisphys >> 24) & 0xff);
SC_DEBUGN(xs->sc_link, SDEV_DB4, ("0x%lx",
thisphys));
/* do it at least once */
nextphys = thisphys;
while ((datalen) && (thisphys == nextphys))
/*
* This page is contiguous (physically) with
* the the last, just extend the length
*/
{
/* how far to the end of the page */
nextphys = (thisphys & (~(PAGESIZ - 1)))
+ PAGESIZ;
bytes_this_page = nextphys - thisphys;
/**** or the data ****/
bytes_this_page = min(bytes_this_page
,datalen);
bytes_this_seg += bytes_this_page;
datalen -= bytes_this_page;
/* get more ready for the next page */
thiskv = (thiskv & (~(PAGESIZ - 1)))
+ PAGESIZ;
if (datalen)
thisphys = KVTOPHYS(thiskv);
}
/*
* next page isn't contiguous, finish the seg
*/
SC_DEBUGN(xs->sc_link, SDEV_DB4,
("(0x%x)", bytes_this_seg));
sg->len.len[0] = (bytes_this_seg & 0xff);
sg->len.len[1] = ((bytes_this_seg >> 8) & 0xff);
sg->len.len[2] = ((bytes_this_seg >> 16) & 0xff);
sg->len.len[3] = ((bytes_this_seg >> 24) & 0xff);
templen += bytes_this_seg;
sg++;
seg++;
}
}
/* end of iov/kv decision */
mscp->datalen.len[0] = (templen & 0xff);
mscp->datalen.len[1] = ((templen >> 8) & 0xff);
mscp->datalen.len[2] = ((templen >> 16) & 0xff);
mscp->datalen.len[3] = ((templen >> 24) & 0xff);
mscp->sg_num = seg;
SC_DEBUGN(xs->sc_link, SDEV_DB4, ("\n"));
if (datalen) { /* there's still data, must have run out of segs! */
printf("uha%d: uha_scsi_cmd, more than %d DMA segs\n",
uha->unit, UHA_NSEG);
xs->error = XS_DRIVER_STUFFUP;
uha_free_mscp(uha, mscp, flags);
return (HAD_ERROR);
}
} else { /* No data xfer, use non S/G values */
mscp->data.addr[0] = 0x00;
mscp->data.addr[1] = 0x00;
mscp->data.addr[2] = 0x00;
mscp->data.addr[3] = 0x00;
mscp->datalen.len[0] = 0x00;
mscp->datalen.len[1] = 0x00;
mscp->datalen.len[2] = 0x00;
mscp->datalen.len[3] = 0x00;
mscp->xdir = 0x03;
mscp->sgth = 0x00;
mscp->sg_num = 0x00;
}
/*
* Put the scsi command in the mscp and start it
*/
bcopy(xs->cmd, mscp->cdb, xs->cmdlen);
/*
* Usually return SUCCESSFULLY QUEUED
*/
if (!(flags & SCSI_NOMASK)) {
s = splbio();
uha_send_mbox(uha, mscp);
timeout(uha_timeout, (caddr_t)mscp, (xs->timeout * hz) / 1000);
splx(s);
SC_DEBUG(xs->sc_link, SDEV_DB3, ("cmd_sent\n"));
return (SUCCESSFULLY_QUEUED);
}
/*
* If we can't use interrupts, poll on completion
*/
uha_send_mbox(uha, mscp);
SC_DEBUG(xs->sc_link, SDEV_DB3, ("cmd_wait\n"));
do {
if (uha_poll(uha, xs->timeout)) {
if (!(xs->flags & SCSI_SILENT))
printf("uha%d: cmd fail\n", uha->unit);
if (!(uha_abort(uha, mscp))) {
printf("uha%d: abort failed in wait\n",
uha->unit);
uha_free_mscp(uha, mscp, flags);
}
xs->error = XS_DRIVER_STUFFUP;
return (HAD_ERROR);
}
}
while (!(xs->flags & ITSDONE)); /* something (?) else finished */
if (xs->error) {
return (HAD_ERROR);
}
return (COMPLETE);
}
static void
uha_timeout(arg1)
void *arg1;
{
struct mscp *mscp = (struct mscp *)arg1;
struct uha_data *uha;
int s = splbio();
uha = (struct uha_data *)mscp->xs->sc_link->adapter_softc;
printf("uha%d:%d:%d (%s%d) timed out ", uha->unit
,mscp->xs->sc_link->target
,mscp->xs->sc_link->lun
,mscp->xs->sc_link->device->name
,mscp->xs->sc_link->dev_unit);
#ifdef UHADEBUG
uha_print_active_mscp(uha);
#endif /*UHADEBUG */
if ((uha_abort(uha, mscp) != 1) || (mscp->flags = MSCP_ABORTED)) {
printf("AGAIN");
mscp->xs->retries = 0; /* I MEAN IT ! */
uha_done(uha, mscp);
} else { /* abort the operation that has timed out */
printf("\n");
timeout(uha_timeout, (caddr_t)mscp, 2 * hz);
mscp->flags = MSCP_ABORTED;
}
splx(s);
}
#ifdef UHADEBUG
void
uha_print_mscp(mscp)
struct mscp *mscp;
{
printf("mscp:%x op:%x cmdlen:%d senlen:%d\n"
,mscp
,mscp->opcode
,mscp->cdblen
,mscp->senselen);
printf(" sg:%d sgnum:%x datlen:%d hstat:%x tstat:%x flags:%x\n"
,mscp->sgth
,mscp->sg_num
,mscp->datalen
,mscp->ha_status
,mscp->targ_status
,mscp->flags);
show_scsi_cmd(mscp->xs);
}
void
uha_print_active_mscp(struct uha_data *uha)
{
struct mscp *mscp;
int i = 0;
while (i < MSCP_HASH_SIZE) {
mscp = uha->mscphash[i];
while (mscp) {
if (mscp->flags != MSCP_FREE) {
uha_print_mscp(mscp);
}
mscp = mscp->nexthash;
}
i++;
}
}
#endif /*UHADEBUG */
#endif /*KERNEL */