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-rw-r--r--sys/i386/isa/ultra14f.c1155
1 files changed, 1155 insertions, 0 deletions
diff --git a/sys/i386/isa/ultra14f.c b/sys/i386/isa/ultra14f.c
new file mode 100644
index 0000000..aa99917
--- /dev/null
+++ b/sys/i386/isa/ultra14f.c
@@ -0,0 +1,1155 @@
+/*
+ * 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
+ *
+ * $Id: ultra14f.c,v 1.16 1994/03/20 00:30:04 wollman 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/user.h>
+
+#include <i386/include/pio.h>
+#include <i386/isa/isa_device.h>
+#endif /*KERNEL */
+#include <scsi/scsi_all.h>
+#include <scsi/scsiconf.h>
+
+/* */
+
+#ifdef KERNEL
+#include "ddb.h"
+#else /*KERNEL */
+#define NUHA 1
+#endif /*KERNEL */
+
+#ifndef NetBSD
+typedef timeout_func_t timeout_t;
+#endif
+
+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 *******************************/
+/*
+ * I/O Port Interface
+ */
+#define UHA_LMASK (0x000) /* local doorbell mask reg */
+#define UHA_LINT (0x001) /* local doorbell int/stat reg */
+#define UHA_SMASK (0x002) /* system doorbell mask reg */
+#define UHA_SINT (0x003) /* system doorbell int/stat reg */
+#define UHA_ID0 (0x004) /* product id reg 0 */
+#define UHA_ID1 (0x005) /* product id reg 1 */
+#define UHA_CONF1 (0x006) /* config reg 1 */
+#define UHA_CONF2 (0x007) /* config reg 2 */
+#define UHA_OGM0 (0x008) /* outgoing mail ptr 0 least sig */
+#define UHA_OGM1 (0x009) /* outgoing mail ptr 1 least mid */
+#define UHA_OGM2 (0x00a) /* outgoing mail ptr 2 most mid */
+#define UHA_OGM3 (0x00b) /* outgoing mail ptr 3 most sig */
+#define UHA_ICM0 (0x00c) /* incoming mail ptr 0 */
+#define UHA_ICM1 (0x00d) /* incoming mail ptr 1 */
+#define UHA_ICM2 (0x00e) /* incoming mail ptr 2 */
+#define UHA_ICM3 (0x00f) /* incoming mail ptr 3 */
+
+/*
+ * UHA_LMASK bits (read only)
+ */
+
+#define UHA_LDIE 0x80 /* local doorbell int enabled */
+#define UHA_SRSTE 0x40 /* soft reset enabled */
+#define UHA_ABORTEN 0x10 /* abort MSCP enabled */
+#define UHA_OGMINTEN 0x01 /* outgoing mail interrupt enabled */
+
+/*
+ * UHA_LINT bits (read)
+ */
+
+#define UHA_LDIP 0x80 /* local doorbell int pending */
+
+/*
+ * 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 */
+
+/*
+ * 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 */
+
+/*
+ * UHA_SINT bits (write)
+ */
+
+#define UHA_ABORT_ACK 0x18 /* acknowledge status and clear */
+#define UHA_ICM_ACK 0x01 /* 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 */
+
+/*
+ * 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;
+};
+
+struct uha_data {
+ int flags;
+#define UHA_INIT 0x01;
+ int baseport;
+ struct mscp *mscphash[MSCP_HASH_SIZE];
+ struct mscp *free_mscp;
+ int our_id; /* our scsi id */
+ int vect;
+ int dma;
+ int nummscps;
+ struct scsi_link sc_link;
+} *uhadata[NUHA];
+
+int uhaprobe();
+int uha_attach();
+int uhaintr();
+int32 uha_scsi_cmd();
+void uha_timeout(caddr_t);
+void uha_free_mscp();
+int uha_abort();
+void uhaminphys();
+void uha_done();
+u_int32 uha_adapter_info();
+struct mscp *uha_mscp_phys_kv();
+
+struct mscp *cheat;
+unsigned long int scratch;
+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"
+};
+
+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 */
+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
+};
+
+#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
+ */
+void
+uha_send_mbox(int unit, struct mscp *mscp)
+{
+ struct uha_data *uha = uhadata[unit];
+ int port = uha->baseport;
+ int spincount = 100000; /* 1s should be enough */
+ int s = splbio();
+
+ while (--spincount) {
+ if ((inb(port + UHA_LINT) & UHA_LDIP) == 0)
+ break;
+ DELAY(100);
+ }
+ if (spincount == 0) {
+ printf("uha%d: uha_send_mbox, board not responding\n", unit);
+ Debugger("ultra14f");
+ }
+ outl(port + UHA_OGM0, KVTOPHYS(mscp));
+ outb(port + UHA_LINT, (UHA_OGMINT));
+ splx(s);
+}
+
+/*
+ * Function to send abort to 14f
+ */
+int
+uha_abort(int unit, struct mscp *mscp)
+{
+ struct uha_data *uha = uhadata[unit];
+ int port = uha->baseport;
+ int spincount = 100; /* 1 mSec */
+ int abortcount = 200000; /*2 secs */
+ int s = splbio();
+
+ while (--spincount) {
+ if ((inb(port + UHA_LINT) & UHA_LDIP) == 0)
+ break;
+ DELAY(10);
+ }
+ if (spincount == 0) {
+ printf("uha%d: uha_abort, board not responding\n", unit);
+ Debugger("ultra14f");
+ }
+ outl(port + UHA_OGM0, KVTOPHYS(mscp));
+ outb(port + UHA_LINT, UHA_ABORT);
+
+ while (--abortcount) {
+ if (inb(port + UHA_SINT) & UHA_ABORT_FAIL)
+ break;
+ DELAY(10);
+ }
+ if (abortcount == 0) {
+ printf("uha%d: uha_abort, board not responding\n", unit);
+ Debugger("ultra14f");
+ }
+ if ((inb(port + UHA_SINT) & 0x10) != 0) {
+ outb(port + UHA_SINT, UHA_ABORT_ACK);
+ splx(s);
+ return (1);
+ } else {
+ outb(port + UHA_SINT, UHA_ABORT_ACK);
+ splx(s);
+ return (0);
+ }
+}
+
+/*
+ * Function to poll for command completion when in poll mode.
+ *
+ * wait = timeout in msec
+ */
+int
+uha_poll(int unit, int wait)
+{
+ struct uha_data *uha = uhadata[unit];
+ int port = uha->baseport;
+ int stport = port + UHA_SINT;
+
+ retry:
+ while (--wait) {
+ if (inb(stport) & UHA_SINTP)
+ break;
+ DELAY(1000); /* 1 mSec per loop */
+ }
+ if (wait == 0) {
+ printf("uha%d: uha_poll, board not responding\n", unit);
+ return (EIO);
+ }
+ uhaintr(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;
+
+ /*
+ * 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));
+ uhadata[unit] = uha;
+ uha->baseport = dev->id_iobase;
+ /*
+ * Try initialise a unit at this location
+ * sets up dma and bus speed, loads uha->vect
+ */
+ if (uha_init(unit) != 0) {
+ uhadata[unit] = NULL;
+ 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;
+
+ 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];
+
+ /*
+ * fill in the prototype scsi_link.
+ */
+ uha->sc_link.adapter_unit = unit;
+ uha->sc_link.adapter_targ = uha->our_id;
+ uha->sc_link.adapter = &uha_switch;
+ uha->sc_link.device = &uha_dev;
+ uha->sc_link.flags = SDEV_BOUNCE;
+
+ /*
+ * ask the adapter what subunits are present
+ */
+ scsi_attachdevs(&(uha->sc_link));
+
+ 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
+ */
+int
+uhaintr(unit)
+ int unit;
+{
+ struct uha_data *uha = uhadata[unit];
+ struct mscp *mscp;
+ u_char uhastat;
+ unsigned long int mboxval;
+
+ int port = uha->baseport;
+
+#ifdef UHADEBUG
+ printf("uhaintr ");
+#endif /*UHADEBUG */
+
+ while (inb(port + UHA_SINT) & UHA_SINTP) {
+ /*
+ * First get all the information and then
+ * acknowledge the interrupt
+ */
+ uhastat = inb(port + UHA_SINT);
+ mboxval = inl(port + UHA_ICM0);
+ outb(port + UHA_SINT, UHA_ICM_ACK);
+
+#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 (0); /* whatever it was, it'll timeout */
+ }
+ untimeout((timeout_t)uha_timeout, (caddr_t)mscp);
+
+ uha_done(unit, mscp);
+ }
+ return (1);
+}
+
+/*
+ * We have a mscp which has been processed by the adaptor, now we look to see
+ * how the operation went.
+ */
+void
+uha_done(unit, mscp)
+ int unit;
+ struct mscp *mscp;
+{
+ struct uha_data *uha = uhadata[unit];
+ 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) || (xs->flags & SCSI_ERR_OK)) { /* All went correctly OR errors expected */
+ xs->resid = 0;
+ xs->error = 0;
+ } else {
+
+ s1 = &(mscp->mscp_sense);
+ s2 = &(xs->sense);
+
+ if (mscp->ha_status != UHA_NO_ERR) {
+ switch (mscp->ha_status) {
+ case UHA_SBUS_TIMEOUT: /* No response */
+ SC_DEBUG(xs->sc_link, SDEV_DB3,
+ ("timeout reported back\n"));
+ 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;
+ case UHA_BAD_SG_LIST:
+ SC_DEBUG(xs->sc_link, SDEV_DB3,
+ ("bad sg list reported back\n"));
+ xs->error = XS_DRIVER_STUFFUP;
+ break;
+ default: /* Other scsi protocol messes */
+ xs->error = XS_DRIVER_STUFFUP;
+ SC_DEBUG(xs->sc_link, SDEV_DB3,
+ ("unexpected ha_status: %x\n",
+ mscp->ha_status));
+ }
+ } else {
+
+ if (mscp->targ_status != 0)
+/*
+ * I have no information for any possible value of target status field
+ * other than 0 means no error!! So I guess any error is unexpected in that
+ * event!!
+ */
+
+ {
+ SC_DEBUG(xs->sc_link, SDEV_DB3,
+ ("unexpected targ_status: %x\n",
+ mscp->targ_status));
+ xs->error = XS_DRIVER_STUFFUP;
+ }
+ }
+ }
+ done:
+ xs->flags |= ITSDONE;
+ uha_free_mscp(unit, mscp, xs->flags);
+ scsi_done(xs);
+}
+
+/*
+ * A mscp (and hence a mbx-out) is put onto the free list.
+ */
+void
+uha_free_mscp(unit, mscp, flags)
+ int unit;
+ struct mscp *mscp;
+ int flags;
+{
+ struct uha_data *uha = uhadata[unit];
+ 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.
+ */
+struct mscp *
+uha_get_mscp(unit, flags)
+ int unit, flags;
+{
+ struct uha_data *uha = uhadata[unit];
+ 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", 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.
+ */
+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(unit)
+ int unit;
+{
+ struct uha_data *uha = uhadata[unit];
+ unsigned char ad[4];
+ 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 i;
+ int resetcount = 4000; /* 4 secs? */
+
+ model = inb(port + UHA_ID0);
+ submodel = inb(port + UHA_ID1);
+ if ((model != 0x56) & (submodel != 0x40)) {
+ printf("uha%d: uha_init, board not responding\n", unit);
+ return (ENXIO);
+ }
+ printf("uha%d: reading board settings, ", unit);
+
+ config_reg1 = inb(port + UHA_CONF1);
+ config_reg2 = inb(port + UHA_CONF2);
+ 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(port + UHA_LINT, UHA_ASRST);
+ while (--resetcount) {
+ if (inb(port + UHA_LINT))
+ break;
+ DELAY(1000); /* 1 mSec per loop */
+ }
+ if (resetcount == 0) {
+ printf("uha%d: board timed out during reset\n", unit);
+ return (ENXIO);
+ }
+ outb(port + UHA_SMASK, 0x81); /* make sure interrupts are enabled */
+ uha->flags |= UHA_INIT;
+ 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.
+ */
+int32
+uha_scsi_cmd(xs)
+ struct scsi_xfer *xs;
+{
+ struct scsi_sense_data *s1, *s2;
+ struct mscp *mscp;
+ struct uha_dma_seg *sg;
+ int seg; /* scatter gather seg being worked on */
+ int i = 0;
+ int rc = 0;
+ int thiskv;
+ unsigned long int thisphys, nextphys;
+ int unit = xs->sc_link->adapter_unit;
+ int bytes_this_seg, bytes_this_page, datalen, flags;
+ struct iovec *iovp;
+ struct uha_data *uha = uhadata[unit];
+ int s;
+ unsigned int stat;
+ int port = uha->baseport;
+ unsigned long int templen;
+
+ 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?", unit);
+ xs->flags &= ~ITSDONE;
+ }
+ if (!(flags & INUSE)) {
+ printf("uha%d: Not in use?", unit);
+ xs->flags |= INUSE;
+ }
+ if (!(mscp = uha_get_mscp(unit, flags))) {
+ xs->error = XS_DRIVER_STUFFUP;
+ return (TRY_AGAIN_LATER);
+ }
+ cheat = mscp;
+ SC_DEBUG(xs->sc_link, SDEV_DB3, ("start mscp(%x)\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(unit, 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,
+ ("%d @0x%x:- ", 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%x", 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",
+ unit, UHA_NSEG);
+ xs->error = XS_DRIVER_STUFFUP;
+ uha_free_mscp(unit, 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(unit, mscp);
+ timeout((timeout_t)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(unit, mscp);
+ SC_DEBUG(xs->sc_link, SDEV_DB3, ("cmd_wait\n"));
+ do {
+ if (uha_poll(unit, xs->timeout)) {
+ if (!(xs->flags & SCSI_SILENT))
+ printf("uha%d: cmd fail\n", unit);
+ if (!(uha_abort(unit, mscp))) {
+ printf("uha%d: abort failed in wait\n", unit);
+ uha_free_mscp(unit, 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);
+}
+
+void
+uha_timeout(caddr_t arg1)
+{
+ struct mscp *mscp = (struct mscp *)arg1;
+ int unit;
+ struct uha_data *uha;
+ int s = splbio();
+ /*int port = uha->baseport; */
+
+ unit = mscp->xs->sc_link->adapter_unit;
+ uha = uhadata[unit];
+ printf("uha%d:%d:%d (%s%d) timed out ", 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(unit);
+#endif /*UHADEBUG */
+
+ if ((uha_abort(unit, mscp) != 1) || (mscp->flags = MSCP_ABORTED)) {
+ printf("AGAIN");
+ mscp->xs->retries = 0; /* I MEAN IT ! */
+ uha_done(unit, mscp, FAIL);
+ } else { /* abort the operation that has timed out */
+ printf("\n");
+ timeout((timeout_t)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(int unit)
+{
+ struct uha_data *uha = uhadata[unit];
+ 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 */
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