--- /dev/null
+/* $OpenBSD: uha_isa.c,v 1.1 1996/11/29 23:51:14 niklas Exp $ */
+/* $NetBSD: uha_isa.c,v 1.5 1996/10/21 22:41:21 thorpej Exp $ */
+
+/*
+ * Copyright (c) 1994, 1996 Charles M. Hannum. 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.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Charles M. Hannum.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, 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 DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/kernel.h>
+#include <sys/proc.h>
+#include <sys/user.h>
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <scsi/scsi_all.h>
+#include <scsi/scsiconf.h>
+
+#include <dev/isa/isavar.h>
+#include <dev/isa/isadmavar.h>
+
+#include <dev/ic/uhareg.h>
+#include <dev/ic/uhavar.h>
+
+#define UHA_ISA_IOSIZE 16
+
+int uha_isa_probe __P((struct device *, void *, void *));
+void uha_isa_attach __P((struct device *, struct device *, void *));
+
+struct cfattach uha_isa_ca = {
+ sizeof(struct uha_softc), uha_isa_probe, uha_isa_attach
+};
+
+#define KVTOPHYS(x) vtophys(x)
+
+int u14_find __P((bus_space_tag_t, bus_space_handle_t, struct uha_softc *));
+void u14_start_mbox __P((struct uha_softc *, struct uha_mscp *));
+int u14_poll __P((struct uha_softc *, struct scsi_xfer *, int));
+int u14_intr __P((void *));
+void u14_init __P((struct uha_softc *));
+
+/*
+ * Check the slots looking for a board we recognise
+ * If we find one, note it's address (slot) and call
+ * the actual probe routine to check it out.
+ */
+int
+uha_isa_probe(parent, match, aux)
+ struct device *parent;
+ void *match, *aux;
+{
+ struct isa_attach_args *ia = aux;
+ struct uha_softc sc;
+ bus_space_tag_t iot = ia->ia_iot;
+ bus_space_handle_t ioh;
+ int rv;
+
+ if (bus_space_map(iot, ia->ia_iobase, UHA_ISA_IOSIZE, 0, &ioh))
+ return (0);
+
+ rv = u14_find(iot, ioh, &sc);
+
+ bus_space_unmap(iot, ioh, UHA_ISA_IOSIZE);
+
+ if (rv) {
+ if (ia->ia_irq != -1 && ia->ia_irq != sc.sc_irq)
+ return (0);
+ if (ia->ia_drq != -1 && ia->ia_drq != sc.sc_drq)
+ return (0);
+ ia->ia_irq = sc.sc_irq;
+ ia->ia_drq = sc.sc_drq;
+ ia->ia_msize = 0;
+ ia->ia_iosize = UHA_ISA_IOSIZE;
+ }
+ return (rv);
+}
+
+/*
+ * Attach all the sub-devices we can find
+ */
+void
+uha_isa_attach(parent, self, aux)
+ struct device *parent, *self;
+ void *aux;
+{
+ struct isa_attach_args *ia = aux;
+ struct uha_softc *sc = (void *)self;
+ bus_space_tag_t iot = ia->ia_iot;
+ bus_space_handle_t ioh;
+ isa_chipset_tag_t ic = ia->ia_ic;
+
+ printf("\n");
+
+ if (bus_space_map(iot, ia->ia_iobase, UHA_ISA_IOSIZE, 0, &ioh))
+ panic("uha_attach: bus_space_map failed!");
+
+ sc->sc_iot = iot;
+ sc->sc_ioh = ioh;
+ if (!u14_find(iot, ioh, sc))
+ panic("uha_attach: u14_find failed!");
+
+ if (sc->sc_drq != -1)
+ isa_dmacascade(sc->sc_drq);
+
+ sc->sc_ih = isa_intr_establish(ic, sc->sc_irq, IST_EDGE, IPL_BIO,
+ u14_intr, sc, sc->sc_dev.dv_xname);
+ if (sc->sc_ih == NULL) {
+ printf("%s: couldn't establish interrupt\n",
+ sc->sc_dev.dv_xname);
+ return;
+ }
+
+ /* Save function pointers for later use. */
+ sc->start_mbox = u14_start_mbox;
+ sc->poll = u14_poll;
+ sc->init = u14_init;
+
+ uha_attach(sc);
+}
+
+/*
+ * Start the board, ready for normal operation
+ */
+int
+u14_find(iot, ioh, sc)
+ bus_space_tag_t iot;
+ bus_space_handle_t ioh;
+ struct uha_softc *sc;
+{
+ u_int16_t model, config;
+ int irq, drq;
+ int resetcount = 4000; /* 4 secs? */
+
+ model = (bus_space_read_1(iot, ioh, U14_ID + 0) << 8) |
+ (bus_space_read_1(iot, ioh, U14_ID + 1) << 0);
+ if ((model & 0xfff0) != 0x5640)
+ return (0);
+
+ config = (bus_space_read_1(iot, ioh, U14_CONFIG + 0) << 8) |
+ (bus_space_read_1(iot, ioh, U14_CONFIG + 1) << 0);
+
+ switch (model & 0x000f) {
+ case 0x0000:
+ switch (config & U14_DMA_MASK) {
+ case U14_DMA_CH5:
+ drq = 5;
+ break;
+ case U14_DMA_CH6:
+ drq = 6;
+ break;
+ case U14_DMA_CH7:
+ drq = 7;
+ break;
+ default:
+ printf("u14_find: illegal drq setting %x\n",
+ config & U14_DMA_MASK);
+ return (0);
+ }
+ break;
+ case 0x0001:
+ /* This is a 34f, and doesn't need an ISA DMA channel. */
+ drq = -1;
+ break;
+ default:
+ printf("u14_find: unknown model %x\n", model);
+ return (0);
+ }
+
+ switch (config & U14_IRQ_MASK) {
+ case U14_IRQ10:
+ irq = 10;
+ break;
+ case U14_IRQ11:
+ irq = 11;
+ break;
+ case U14_IRQ14:
+ irq = 14;
+ break;
+ case U14_IRQ15:
+ irq = 15;
+ break;
+ default:
+ printf("u14_find: illegal irq setting %x\n",
+ config & U14_IRQ_MASK);
+ return (0);
+ }
+
+ bus_space_write_1(iot, ioh, U14_LINT, UHA_ASRST);
+
+ while (--resetcount) {
+ if (bus_space_read_1(iot, ioh, U14_LINT))
+ break;
+ delay(1000); /* 1 mSec per loop */
+ }
+ if (!resetcount) {
+ printf("u14_find: board timed out during reset\n");
+ return (0);
+ }
+
+ /* if we want to fill in softc, do so now */
+ if (sc != NULL) {
+ sc->sc_irq = irq;
+ sc->sc_drq = drq;
+ sc->sc_scsi_dev = config & U14_HOSTID_MASK;
+ }
+
+ return (1);
+}
+
+/*
+ * Function to send a command out through a mailbox
+ */
+void
+u14_start_mbox(sc, mscp)
+ struct uha_softc *sc;
+ struct uha_mscp *mscp;
+{
+ bus_space_tag_t iot = sc->sc_iot;
+ bus_space_handle_t ioh = sc->sc_ioh;
+ int spincount = 100000; /* 1s should be enough */
+
+ while (--spincount) {
+ if ((bus_space_read_1(iot, ioh, U14_LINT) & U14_LDIP) == 0)
+ break;
+ delay(100);
+ }
+ if (!spincount) {
+ printf("%s: uha_start_mbox, board not responding\n",
+ sc->sc_dev.dv_xname);
+ Debugger();
+ }
+
+ bus_space_write_4(iot, ioh, U14_OGMPTR, KVTOPHYS(mscp));
+ if (mscp->flags & MSCP_ABORT)
+ bus_space_write_1(iot, ioh, U14_LINT, U14_ABORT);
+ else
+ bus_space_write_1(iot, ioh, U14_LINT, U14_OGMFULL);
+
+ if ((mscp->xs->flags & SCSI_POLL) == 0)
+ timeout(uha_timeout, mscp, (mscp->timeout * hz) / 1000);
+}
+
+/*
+ * Function to poll for command completion when in poll mode.
+ *
+ * wait = timeout in msec
+ */
+int
+u14_poll(sc, xs, count)
+ struct uha_softc *sc;
+ struct scsi_xfer *xs;
+ int count;
+{
+ bus_space_tag_t iot = sc->sc_iot;
+ bus_space_handle_t ioh = sc->sc_ioh;
+
+ while (count) {
+ /*
+ * If we had interrupts enabled, would we
+ * have got an interrupt?
+ */
+ if (bus_space_read_1(iot, ioh, U14_SINT) & U14_SDIP)
+ u14_intr(sc);
+ if (xs->flags & ITSDONE)
+ return (0);
+ delay(1000);
+ count--;
+ }
+ return (1);
+}
+
+/*
+ * Catch an interrupt from the adaptor
+ */
+int
+u14_intr(arg)
+ void *arg;
+{
+ struct uha_softc *sc = arg;
+ bus_space_tag_t iot = sc->sc_iot;
+ bus_space_handle_t ioh = sc->sc_ioh;
+ struct uha_mscp *mscp;
+ u_char uhastat;
+ u_long mboxval;
+
+#ifdef UHADEBUG
+ printf("%s: uhaintr ", sc->sc_dev.dv_xname);
+#endif /*UHADEBUG */
+
+ if ((bus_space_read_1(iot, ioh, U14_SINT) & U14_SDIP) == 0)
+ return (0);
+
+ for (;;) {
+ /*
+ * First get all the information and then
+ * acknowledge the interrupt
+ */
+ uhastat = bus_space_read_1(iot, ioh, U14_SINT);
+ mboxval = bus_space_read_4(iot, ioh, U14_ICMPTR);
+ /* XXX Send an ABORT_ACK instead? */
+ bus_space_write_1(iot, ioh, U14_SINT, U14_ICM_ACK);
+
+#ifdef UHADEBUG
+ printf("status = 0x%x ", uhastat);
+#endif /*UHADEBUG*/
+
+ /*
+ * Process the completed operation
+ */
+ mscp = uha_mscp_phys_kv(sc, mboxval);
+ if (!mscp) {
+ printf("%s: BAD MSCP RETURNED!\n",
+ sc->sc_dev.dv_xname);
+ continue; /* whatever it was, it'll timeout */
+ }
+
+ untimeout(uha_timeout, mscp);
+ uha_done(sc, mscp);
+
+ if ((bus_space_read_1(iot, ioh, U14_SINT) & U14_SDIP) == 0)
+ return (1);
+ }
+}
+
+void
+u14_init(sc)
+ struct uha_softc *sc;
+{
+ bus_space_tag_t iot = sc->sc_iot;
+ bus_space_handle_t ioh = sc->sc_ioh;
+
+ /* make sure interrupts are enabled */
+#ifdef UHADEBUG
+ printf("u14_init: lmask=%02x, smask=%02x\n",
+ bus_space_read_1(iot, ioh, U14_LMASK),
+ bus_space_read_1(iot, ioh, U14_SMASK));
+#endif
+ bus_space_write_1(iot, ioh, U14_LMASK, 0xd1); /* XXX */
+ bus_space_write_1(iot, ioh, U14_SMASK, 0x91); /* XXX */
+}
+++ /dev/null
-/* $OpenBSD: ultra14f.c,v 1.16 1996/11/23 21:46:47 kstailey Exp $ */
-/* $NetBSD: ultra14f.c,v 1.66 1996/05/12 23:53:54 mycroft Exp $ */
-
-/*
- * Copyright (c) 1994 Charles Hannum. 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.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by Charles Hannum.
- * 4. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, 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 DAMAGE.
- */
-
-/*
- * 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.
- *
- * Originally 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
- */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/errno.h>
-#include <sys/ioctl.h>
-#include <sys/device.h>
-#include <sys/malloc.h>
-#include <sys/buf.h>
-#include <sys/proc.h>
-#include <sys/user.h>
-
-#include <machine/intr.h>
-#include <machine/pio.h>
-
-#include <dev/isa/isavar.h>
-#include <dev/isa/isadmavar.h>
-
-#include <scsi/scsi_all.h>
-#include <scsi/scsiconf.h>
-
-#ifndef DDB
-#define Debugger() panic("should call debugger here (ultra14f.c)")
-#endif /* ! DDB */
-
-typedef u_long physaddr;
-typedef u_long physlen;
-
-#define KVTOPHYS(x) vtophys(x)
-
-#define UHA_MSCP_MAX 32 /* store up to 32 MSCPs at one time */
-#define MSCP_HASH_SIZE 32 /* hash table size for phystokv */
-#define MSCP_HASH_SHIFT 9
-#define MSCP_HASH(x) ((((long)(x))>>MSCP_HASH_SHIFT) & (MSCP_HASH_SIZE - 1))
-
-#define UHA_NSEG 33 /* number of dma segments supported */
-
-/************************** board definitions *******************************/
-/*
- * I/O Port Interface
- */
-#define U14_LMASK 0x0000 /* local doorbell mask reg */
-#define U14_LINT 0x0001 /* local doorbell int/stat reg */
-#define U14_SMASK 0x0002 /* system doorbell mask reg */
-#define U14_SINT 0x0003 /* system doorbell int/stat reg */
-#define U14_ID 0x0004 /* product id reg (2 ports) */
-#define U14_CONFIG 0x0006 /* config reg (2 ports) */
-#define U14_OGMPTR 0x0008 /* outgoing mail ptr (4 ports) */
-#define U14_ICMPTR 0x000c /* incoming mail ptr (4 ports) */
-
-#define U24_CONFIG 0x0c85 /* config reg (3 ports) */
-#define U24_LMASK 0x0c8c /* local doorbell mask reg */
-#define U24_LINT 0x0c8d /* local doorbell int/stat reg */
-#define U24_SMASK 0x0c8e /* system doorbell mask reg */
-#define U24_SINT 0x0c8f /* system doorbell int/stat reg */
-#define U24_OGMCMD 0x0c96 /* outgoing commands */
-#define U24_OGMPTR 0x0c97 /* outgoing mail ptr (4 ports) */
-#define U24_ICMCMD 0x0c9b /* incoming commands */
-#define U24_ICMPTR 0x0c9c /* incoming mail ptr (4 ports) */
-
-/*
- * 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 (write only)
- */
-#define U14_LDIP 0x80 /* local doorbell int pending */
-#define U24_LDIP 0x02 /* local doorbell int pending */
-
-#define U14_OGMFULL 0x01 /* outgoing mailbox is full */
-#define U24_OGMFULL 0x02 /* outgoing mailbox is full */
-
-#define UHA_ABORT 0x10 /* abort MSCP */
-#define UHA_SBRST 0x40 /* scsi bus reset */
-#define UHA_ADRST 0x80 /* adapter soft reset */
-#define UHA_ASRST 0xc0 /* adapter and scsi reset */
-
-/*
- * UHA_SMASK bits (read/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 U14_SDIP 0x80 /* system doorbell int pending */
-#define U24_SDIP 0x02 /* 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 U14_ICM_ACK 0x01 /* acknowledge ICM and clear */
-#define U24_ICM_ACK 0x02 /* acknowledge ICM and clear */
-
-#define UHA_ABORT_ACK 0x18 /* acknowledge status and clear */
-
-/*
- * U14_CONFIG bits (read only)
- */
-#define U14_DMA_CH5 0x0000 /* DMA channel 5 */
-#define U14_DMA_CH6 0x4000 /* 6 */
-#define U14_DMA_CH7 0x8000 /* 7 */
-#define U14_DMA_MASK 0xc000
-#define U14_IRQ15 0x0000 /* IRQ 15 */
-#define U14_IRQ14 0x1000 /* 14 */
-#define U14_IRQ11 0x2000 /* 11 */
-#define U14_IRQ10 0x3000 /* 10 */
-#define U14_IRQ_MASK 0x3000
-#define U14_HOSTID_MASK 0x0007
-
-/*
- * U24_CONFIG bits (read only)
- */
-#define U24_MAGIC1 0x08
-#define U24_IRQ15 0x10
-#define U24_IRQ14 0x20
-#define U24_IRQ11 0x40
-#define U24_IRQ10 0x80
-#define U24_IRQ_MASK 0xf0
-
-#define U24_MAGIC2 0x04
-
-#define U24_HOSTID_MASK 0x07
-
-/*
- * EISA registers (offset from slot base)
- */
-#define EISA_VENDOR 0x0c80 /* vendor ID (2 ports) */
-#define EISA_MODEL 0x0c82 /* model number (2 ports) */
-#define EISA_CONTROL 0x0c84
-#define EISA_RESET 0x04
-#define EISA_ERROR 0x02
-#define EISA_ENABLE 0x01
-
-/*
- * host_stat 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 seg_addr;
- physlen seg_len;
-};
-
-#pragma pack(1)
-struct uha_mscp {
- u_char opcode:3;
-#define UHA_HAC 0x01 /* host adapter command */
-#define UHA_TSP 0x02 /* target scsi pass through command */
-#define UHA_SDR 0x04 /* scsi device reset */
- u_char xdir:2; /* xfer direction */
-#define UHA_SDET 0x00 /* determined by scsi command */
-#define UHA_SDIN 0x01 /* scsi data in */
-#define UHA_SDOUT 0x02 /* scsi data out */
-#define UHA_NODATA 0x03 /* no data xfer */
- u_char dcn:1; /* disable disconnect for this command */
- u_char ca:1; /* cache control */
- u_char sgth:1; /* scatter gather flag */
- u_char target:3;
- u_char chan:2; /* scsi channel (always 0 for 14f) */
- u_char lun:3;
- physaddr data_addr;
- physlen data_length;
- physaddr link_addr;
- u_char link_id;
- u_char sg_num; /* number of scat gath segs */
- /*in s-g list if sg flag is */
- /*set. starts at 1, 8bytes per */
- u_char req_sense_length;
- u_char scsi_cmd_length;
- struct scsi_generic scsi_cmd;
- u_char host_stat;
- u_char target_stat;
- physaddr sense_ptr; /* if 0 no auto sense */
- /*-----------------end of hardware supported fields----------------*/
- TAILQ_ENTRY(uha_mscp) chain;
- struct uha_mscp *nexthash;
- long hashkey;
- 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;
-};
-#pragma pack(4)
-
-struct uha_softc {
- struct device sc_dev;
- struct isadev sc_id;
- void *sc_ih;
-
- int sc_iobase;
- int sc_irq, sc_drq;
-
- void (*send_mbox) __P((struct uha_softc *, struct uha_mscp *));
- int (*abort) __P((struct uha_softc *, struct uha_mscp *));
- int (*poll) __P((struct uha_softc *, struct scsi_xfer *, int));
- int (*intr) __P((void *));
- void (*init) __P((struct uha_softc *));
-
- struct uha_mscp *mscphash[MSCP_HASH_SIZE];
- TAILQ_HEAD(, uha_mscp) free_mscp;
- int nummscps;
- int uha_scsi_dev; /* our scsi id */
- struct scsi_link sc_link;
-};
-
-void u14_start_mbox __P((struct uha_softc *, int, struct uha_mscp *));
-void u14_send_mbox __P((struct uha_softc *, struct uha_mscp *));
-void u24_start_mbox __P((struct uha_softc *, int, struct uha_mscp *));
-void u24_send_mbox __P((struct uha_softc *, struct uha_mscp *));
-int u14_abort __P((struct uha_softc *, struct uha_mscp *));
-int u24_abort __P((struct uha_softc *, struct uha_mscp *));
-int u14_poll __P((struct uha_softc *, struct scsi_xfer *, int));
-int u24_poll __P((struct uha_softc *, struct scsi_xfer *, int));
-int u14intr __P((void *));
-int u24intr __P((void *));
-void uha_done __P((struct uha_softc *, struct uha_mscp *));
-void uha_free_mscp __P((struct uha_softc *, struct uha_mscp *, int flags));
-struct uha_mscp *uha_get_mscp __P((struct uha_softc *, int));
-struct uha_mscp *uha_mscp_phys_kv __P((struct uha_softc *, u_long));
-int u14_find __P((struct uha_softc *, struct isa_attach_args *));
-int u24_find __P((struct uha_softc *, struct isa_attach_args *));
-void u14_init __P((struct uha_softc *));
-void u24_init __P((struct uha_softc *));
-void uhaminphys __P((struct buf *));
-int uha_scsi_cmd __P((struct scsi_xfer *));
-void uha_timeout __P((void *arg));
-#ifdef UHADEBUG
-void uha_print_mscp __P((struct uha_mscp *));
-void uha_print_active_mscp __P((struct uha_softc *));
-#endif
-static __inline void uha_init_mscp __P((struct uha_softc *, struct uha_mscp *));
-static __inline void uha_reset_mscp __P((struct uha_softc *,
- struct uha_mscp *));
-
-u_long scratch;
-#define UHA_SHOWMSCPS 0x01
-#define UHA_SHOWINTS 0x02
-#define UHA_SHOWCMDS 0x04
-#define UHA_SHOWMISC 0x08
-
-struct scsi_adapter uha_switch = {
- uha_scsi_cmd,
- uhaminphys,
- 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 */
-};
-
-int uhaprobe __P((struct device *, void *, void *));
-void uhaattach __P((struct device *, struct device *, void *));
-int uhaprint __P((void *, const char *));
-
-struct cfattach uha_ca = {
- sizeof(struct uha_softc), uhaprobe, uhaattach
-};
-
-struct cfdriver uha_cd = {
- NULL, "uha", DV_DULL
-};
-
-/*
- * Function to send a command out through a mailbox
- */
-void
-u14_start_mbox(uha, opcode, mscp)
- struct uha_softc *uha;
- int opcode;
- struct uha_mscp *mscp;
-{
- int iobase = uha->sc_iobase;
- int spincount = 100000; /* 1s should be enough */
-
- while (--spincount) {
- if ((inb(iobase + U14_LINT) & U14_LDIP) == 0)
- break;
- delay(100);
- }
- if (!spincount) {
- printf("%s: uha_send_mbox, board not responding\n",
- uha->sc_dev.dv_xname);
- Debugger();
- }
-
- outl(iobase + U14_OGMPTR, KVTOPHYS(mscp));
- outb(iobase + U14_LINT, opcode);
-}
-
-void
-u14_send_mbox(uha, mscp)
- struct uha_softc *uha;
- struct uha_mscp *mscp;
-{
-
- u14_start_mbox(uha, U14_OGMFULL, mscp);
-}
-
-void
-u24_start_mbox(uha, opcode, mscp)
- struct uha_softc *uha;
- int opcode;
- struct uha_mscp *mscp;
-{
- int iobase = uha->sc_iobase;
- int spincount = 100000; /* 1s should be enough */
-
- while (--spincount) {
- if ((inb(iobase + U24_LINT) & U24_LDIP) == 0)
- break;
- delay(100);
- }
- if (!spincount) {
- printf("%s: uha_send_mbox, board not responding\n",
- uha->sc_dev.dv_xname);
- Debugger();
- }
-
- outl(iobase + U24_OGMPTR, KVTOPHYS(mscp));
- outb(iobase + U24_OGMCMD, 1);
- outb(iobase + U24_LINT, opcode);
-}
-
-void
-u24_send_mbox(uha, mscp)
- struct uha_softc *uha;
- struct uha_mscp *mscp;
-{
-
- u24_start_mbox(uha, U24_OGMFULL, mscp);
-}
-
-/*
- * Function to send abort
- */
-int
-u14_abort(uha, mscp)
- struct uha_softc *uha;
- struct uha_mscp *mscp;
-{
- int iobase = uha->sc_iobase;
- int abortcount = 200000; /* 2 secs */
- int s = splbio();
-
- u14_start_mbox(uha, UHA_ABORT, mscp);
-
- while (--abortcount) {
- if (inb(iobase + U14_SINT) & UHA_ABORT_FAIL)
- break;
- delay(10);
- }
- if (!abortcount) {
- printf("%s: u14_abort, board not responding\n",
- uha->sc_dev.dv_xname);
- Debugger();
- }
-
- if ((inb(iobase + U14_SINT) & (UHA_ABORT_FAIL | UHA_ABORT_SUCC)) ==
- UHA_ABORT_SUCC) {
- outb(iobase + U14_SINT, UHA_ABORT_ACK);
- splx(s);
- return 1;
- } else {
- outb(iobase + U14_SINT, UHA_ABORT_ACK);
- splx(s);
- return 0;
- }
-}
-
-int
-u24_abort(uha, mscp)
- struct uha_softc *uha;
- struct uha_mscp *mscp;
-{
- int iobase = uha->sc_iobase;
- int abortcount = 200000; /* 2 secs */
- int s = splbio();
-
- u24_start_mbox(uha, UHA_ABORT, mscp);
-
- while (--abortcount) {
- if (inb(iobase + U24_SINT) & UHA_ABORT_FAIL)
- break;
- delay(10);
- }
- if (!abortcount) {
- printf("%s: u24_abort, board not responding\n",
- uha->sc_dev.dv_xname);
- Debugger();
- }
-
- if ((inb(iobase + U24_SINT) & (UHA_ABORT_FAIL | UHA_ABORT_SUCC)) ==
- UHA_ABORT_SUCC) {
- outb(iobase + U24_SINT, UHA_ABORT_ACK);
- splx(s);
- return 1;
- } else {
- outb(iobase + U24_SINT, UHA_ABORT_ACK);
- splx(s);
- return 0;
- }
-}
-
-/*
- * Function to poll for command completion when in poll mode.
- *
- * wait = timeout in msec
- */
-int
-u14_poll(uha, xs, count)
- struct uha_softc *uha;
- struct scsi_xfer *xs;
- int count;
-{
- int iobase = uha->sc_iobase;
-
- while (count) {
- /*
- * If we had interrupts enabled, would we
- * have got an interrupt?
- */
- if (inb(iobase + U14_SINT) & U14_SDIP)
- u14intr(uha);
- if (xs->flags & ITSDONE)
- return 0;
- delay(1000);
- count--;
- }
- return 1;
-}
-
-int
-u24_poll(uha, xs, count)
- struct uha_softc *uha;
- struct scsi_xfer *xs;
- int count;
-{
- int iobase = uha->sc_iobase;
-
- while (count) {
- /*
- * If we had interrupts enabled, would we
- * have got an interrupt?
- */
- if (inb(iobase + U24_SINT) & U24_SDIP)
- u24intr(uha);
- if (xs->flags & ITSDONE)
- return 0;
- delay(1000);
- count--;
- }
- return 1;
-}
-
-/*
- * 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(parent, match, aux)
- struct device *parent;
- void *match, *aux;
-{
- struct uha_softc *uha = match;
- struct isa_attach_args *ia = aux;
-
- /*
- * Try initialise a unit at this location
- * sets up dma and bus speed, loads uha->sc_irq
- */
- if (u24_find(uha, ia) != 0 && u14_find(uha, ia) != 0)
- return 0;
-
- if (ia->ia_irq != IRQUNK) {
- if (ia->ia_irq != uha->sc_irq) {
- printf("%s: irq mismatch; kernel configured %d != board configured %d\n",
- uha->sc_dev.dv_xname, ia->ia_irq, uha->sc_irq);
- return 0;
- }
- } else
- ia->ia_irq = uha->sc_irq;
-
- if (ia->ia_drq != DRQUNK) {
- if (ia->ia_drq != uha->sc_drq) {
- printf("%s: drq mismatch; kernel configured %d != board configured %d\n",
- uha->sc_dev.dv_xname, ia->ia_drq, uha->sc_drq);
- return 0;
- }
- } else
- ia->ia_drq = uha->sc_drq;
-
- ia->ia_msize = 0;
- ia->ia_iosize = 16;
- return 1;
-}
-
-int
-uhaprint(aux, name)
- void *aux;
- const char *name;
-{
- if (name != NULL)
- printf("%s: scsibus ", name);
- return UNCONF;
-}
-
-/*
- * Attach all the sub-devices we can find
- */
-void
-uhaattach(parent, self, aux)
- struct device *parent, *self;
- void *aux;
-{
- struct isa_attach_args *ia = aux;
- struct uha_softc *uha = (void *)self;
-
- if (ia->ia_drq != DRQUNK)
- isa_dmacascade(ia->ia_drq);
-
- (uha->init)(uha);
- TAILQ_INIT(&uha->free_mscp);
-
- /*
- * fill in the prototype scsi_link.
- */
- uha->sc_link.adapter_softc = uha;
- uha->sc_link.adapter_target = uha->uha_scsi_dev;
- uha->sc_link.adapter = &uha_switch;
- uha->sc_link.device = &uha_dev;
- uha->sc_link.openings = 2;
-
- printf("\n");
-
-#ifdef NEWCONFIG
- isa_establish(&uha->sc_id, &uha->sc_dev);
-#endif
- uha->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
- IPL_BIO, uha->intr, uha, uha->sc_dev.dv_xname);
-
- /*
- * ask the adapter what subunits are present
- */
- config_found(self, &uha->sc_link, uhaprint);
-}
-
-/*
- * Catch an interrupt from the adaptor
- */
-int
-u14intr(arg)
- void *arg;
-{
- struct uha_softc *uha = arg;
- struct uha_mscp *mscp;
- u_char uhastat;
- u_long mboxval;
- int iobase = uha->sc_iobase;
-
-#ifdef UHADEBUG
- printf("%s: uhaintr ", uha->sc_dev.dv_xname);
-#endif /*UHADEBUG */
-
- if ((inb(iobase + U14_SINT) & U14_SDIP) == 0)
- return 0;
-
- for (;;) {
- /*
- * First get all the information and then
- * acknowledge the interrupt
- */
- uhastat = inb(iobase + U14_SINT);
- mboxval = inl(iobase + U14_ICMPTR);
- outb(iobase + U14_SINT, U14_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("%s: BAD MSCP RETURNED!\n",
- uha->sc_dev.dv_xname);
- continue; /* whatever it was, it'll timeout */
- }
- untimeout(uha_timeout, mscp);
- uha_done(uha, mscp);
-
- if ((inb(iobase + U14_SINT) & U14_SDIP) == 0)
- return 1;
- }
-}
-
-int
-u24intr(arg)
- void *arg;
-{
- struct uha_softc *uha = arg;
- struct uha_mscp *mscp;
- u_char uhastat;
- u_long mboxval;
- int iobase = uha->sc_iobase;
-
-#ifdef UHADEBUG
- printf("%s: uhaintr ", uha->sc_dev.dv_xname);
-#endif /*UHADEBUG */
-
- if ((inb(iobase + U24_SINT) & U24_SDIP) == 0)
- return 0;
-
- for (;;) {
- /*
- * First get all the information and then
- * acknowledge the interrupt
- */
- uhastat = inb(iobase + U24_SINT);
- mboxval = inl(iobase + U24_ICMPTR);
- outb(iobase + U24_SINT, U24_ICM_ACK);
- outb(iobase + U24_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("%s: BAD MSCP RETURNED!\n",
- uha->sc_dev.dv_xname);
- continue; /* whatever it was, it'll timeout */
- }
- untimeout(uha_timeout, mscp);
- uha_done(uha, mscp);
-
- if ((inb(iobase + U24_SINT) & U24_SDIP) == 0)
- 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(uha, mscp)
- struct uha_softc *uha;
- struct uha_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 ((xs->flags & INUSE) == 0) {
- printf("%s: exiting but not in use!\n", uha->sc_dev.dv_xname);
- Debugger();
- }
- if (xs->error == XS_NOERROR) {
- if (mscp->host_stat != UHA_NO_ERR) {
- switch (mscp->host_stat) {
- case UHA_SBUS_TIMEOUT: /* No response */
- xs->error = XS_SELTIMEOUT;
- 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 */
- printf("%s: host_stat %x\n",
- uha->sc_dev.dv_xname, mscp->host_stat);
- xs->error = XS_DRIVER_STUFFUP;
- }
- } else if (mscp->target_stat != SCSI_OK) {
- switch (mscp->target_stat) {
- case SCSI_CHECK:
- s1 = &mscp->mscp_sense;
- s2 = &xs->sense;
- *s2 = *s1;
- xs->error = XS_SENSE;
- break;
- case SCSI_BUSY:
- xs->error = XS_BUSY;
- break;
- default:
- printf("%s: target_stat %x\n",
- uha->sc_dev.dv_xname, mscp->target_stat);
- xs->error = XS_DRIVER_STUFFUP;
- }
- } else
- xs->resid = 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_softc *uha;
- struct uha_mscp *mscp;
- int flags;
-{
- int s;
-
- s = splbio();
-
- mscp->flags = MSCP_FREE;
- TAILQ_INSERT_HEAD(&uha->free_mscp, mscp, chain);
-
- /*
- * If there were none, wake anybody waiting for one to come free,
- * starting with queued entries.
- */
- if (mscp->chain.tqe_next == 0)
- wakeup(&uha->free_mscp);
-
- splx(s);
-}
-
-static __inline void
-uha_init_mscp(uha, mscp)
- struct uha_softc *uha;
- struct uha_mscp *mscp;
-{
- int hashnum;
-
- bzero(mscp, sizeof(struct uha_mscp));
- /*
- * put in the phystokv hash table
- * Never gets taken out.
- */
- mscp->hashkey = KVTOPHYS(mscp);
- hashnum = MSCP_HASH(mscp->hashkey);
- mscp->nexthash = uha->mscphash[hashnum];
- uha->mscphash[hashnum] = mscp;
-}
-
-static __inline void
-uha_reset_mscp(uha, mscp)
- struct uha_softc *uha;
- struct uha_mscp *mscp;
-{
-
-}
-
-/*
- * 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 uha_mscp *
-uha_get_mscp(uha, flags)
- struct uha_softc *uha;
- int flags;
-{
- struct uha_mscp *mscp;
- int s;
-
- s = splbio();
-
- /*
- * If we can and have to, sleep waiting for one to come free
- * but only if we can't allocate a new one
- */
- for (;;) {
- mscp = uha->free_mscp.tqh_first;
- if (mscp) {
- TAILQ_REMOVE(&uha->free_mscp, mscp, chain);
- break;
- }
- if (uha->nummscps < UHA_MSCP_MAX) {
- mscp = (struct uha_mscp *)
- malloc(sizeof(struct uha_mscp),
- M_TEMP, M_NOWAIT);
- if (mscp) {
- uha_init_mscp(uha, mscp);
- uha->nummscps++;
- } else {
- printf("%s: can't malloc mscp\n",
- uha->sc_dev.dv_xname);
- goto out;
- }
- break;
- }
- if ((flags & SCSI_NOSLEEP) != 0)
- goto out;
- tsleep(&uha->free_mscp, PRIBIO, "uhamsc", 0);
- }
-
- uha_reset_mscp(uha, mscp);
- mscp->flags = MSCP_ACTIVE;
-
-out:
- splx(s);
- return mscp;
-}
-
-/*
- * given a physical address, find the mscp that it corresponds to.
- */
-struct uha_mscp *
-uha_mscp_phys_kv(uha, mscp_phys)
- struct uha_softc *uha;
- u_long mscp_phys;
-{
- int hashnum = MSCP_HASH(mscp_phys);
- struct uha_mscp *mscp = uha->mscphash[hashnum];
-
- while (mscp) {
- if (mscp->hashkey == mscp_phys)
- break;
- mscp = mscp->nexthash;
- }
- return mscp;
-}
-
-/*
- * Start the board, ready for normal operation
- */
-int
-u14_find(uha, ia)
- struct uha_softc *uha;
- struct isa_attach_args *ia;
-{
- int iobase = ia->ia_iobase;
- u_short model, config;
- int resetcount = 4000; /* 4 secs? */
-
- if (ia->ia_iobase == IOBASEUNK)
- return ENXIO;
-
- model = (inb(iobase + U14_ID) << 8) | inb(iobase + U14_ID + 1);
- if ((model & 0xfff0) != 0x5640)
- return ENXIO;
-
- config = (inb(iobase + U14_CONFIG) << 8) | inb(iobase + U14_CONFIG + 1);
-
- switch (model & 0x000f) {
- case 0x0001:
- /* This is a 34f, and doesn't need an ISA DMA channel. */
- uha->sc_drq = DRQUNK;
- break;
- default:
- switch (config & U14_DMA_MASK) {
- case U14_DMA_CH5:
- uha->sc_drq = 5;
- break;
- case U14_DMA_CH6:
- uha->sc_drq = 6;
- break;
- case U14_DMA_CH7:
- uha->sc_drq = 7;
- break;
- default:
- printf("%s: illegal drq setting %x\n",
- uha->sc_dev.dv_xname, config & U14_DMA_MASK);
- return EIO;
- }
- break;
- }
-
- switch (config & U14_IRQ_MASK) {
- case U14_IRQ10:
- uha->sc_irq = 10;
- break;
- case U14_IRQ11:
- uha->sc_irq = 11;
- break;
- case U14_IRQ14:
- uha->sc_irq = 14;
- break;
- case U14_IRQ15:
- uha->sc_irq = 15;
- break;
- default:
- printf("%s: illegal irq setting %x\n", uha->sc_dev.dv_xname,
- config & U14_IRQ_MASK);
- return EIO;
- }
-
- /* who are we on the scsi bus */
- uha->uha_scsi_dev = config & U14_HOSTID_MASK;
-
- outb(iobase + U14_LINT, UHA_ASRST);
-
- while (--resetcount) {
- if (inb(iobase + U14_LINT))
- break;
- delay(1000); /* 1 mSec per loop */
- }
- if (!resetcount) {
- printf("%s: board timed out during reset\n",
- uha->sc_dev.dv_xname);
- return ENXIO;
- }
-
- /* Save function pointers for later use. */
- uha->send_mbox = u14_send_mbox;
- uha->abort = u14_abort;
- uha->poll = u14_poll;
- uha->intr = u14intr;
- uha->init = u14_init;
-
- uha->sc_iobase = iobase;
- return 0;
-}
-
-int
-u24_find(uha, ia)
- struct uha_softc *uha;
- struct isa_attach_args *ia;
-{
- static int uha_slot = 0;
- int iobase;
- u_short vendor, model;
- u_char config0, config1, config2;
- u_char irq_ch, uha_id;
- int resetcount = 4000; /* 4 secs? */
-
- if (ia->ia_iobase != IOBASEUNK)
- return ENXIO;
-
- while (uha_slot < 15) {
- uha_slot++;
- iobase = 0x1000 * uha_slot;
-
- vendor = htons(inw(iobase + EISA_VENDOR));
- if (vendor != 0x5663) /* `USC' */
- continue;
-
- model = htons(inw(iobase + EISA_MODEL));
- if ((model & 0xfff0) != 0x0240) {
-#ifndef trusted
- printf("u24_find: ignoring model %04x\n", model);
-#endif
- continue;
- }
-
-#if 0
- outb(iobase + EISA_CONTROL, EISA_ENABLE | EISA_RESET);
- delay(10);
- outb(iobase + EISA_CONTROL, EISA_ENABLE);
- /* Wait for reset? */
- delay(1000);
-#endif
-
- config0 = inb(iobase + U24_CONFIG);
- config1 = inb(iobase + U24_CONFIG + 1);
- config2 = inb(iobase + U24_CONFIG + 2);
- if ((config0 & U24_MAGIC1) == 0 ||
- (config1 & U24_MAGIC2) == 0)
- continue;
-
- irq_ch = config0 & U24_IRQ_MASK;
- uha_id = config2 & U24_HOSTID_MASK;
-
- uha->sc_drq = DRQUNK;
-
- switch (irq_ch) {
- case U24_IRQ10:
- uha->sc_irq = 10;
- break;
- case U24_IRQ11:
- uha->sc_irq = 11;
- break;
- case U24_IRQ14:
- uha->sc_irq = 14;
- break;
- case U24_IRQ15:
- uha->sc_irq = 15;
- break;
- default:
- printf("%s: illegal irq setting %x\n",
- uha->sc_dev.dv_xname, irq_ch);
- continue;
- }
-
- /* who are we on the scsi bus */
- uha->uha_scsi_dev = uha_id;
-
- outb(iobase + U24_LINT, UHA_ASRST);
-
- while (--resetcount) {
- if (inb(iobase + U24_LINT))
- break;
- delay(1000); /* 1 mSec per loop */
- }
- if (!resetcount) {
- printf("%s: board timed out during reset\n",
- uha->sc_dev.dv_xname);
- continue;
- }
-
- /* Save function pointers for later use. */
- uha->send_mbox = u24_send_mbox;
- uha->abort = u24_abort;
- uha->poll = u24_poll;
- uha->intr = u24intr;
- uha->init = u24_init;
-
- uha->sc_iobase = ia->ia_iobase = iobase;
- return 0;
- }
-
- return ENXIO;
-}
-
-void
-u14_init(uha)
- struct uha_softc *uha;
-{
- int iobase = uha->sc_iobase;
-
- /* make sure interrupts are enabled */
-#ifdef UHADEBUG
- printf("u14_init: lmask=%02x, smask=%02x\n",
- inb(iobase + U14_LMASK), inb(iobase + U14_SMASK));
-#endif
- outb(iobase + U14_LMASK, 0xd1); /* XXX */
- outb(iobase + U14_SMASK, 0x91); /* XXX */
-}
-
-void
-u24_init(uha)
- struct uha_softc *uha;
-{
- int iobase = uha->sc_iobase;
-
- /* free OGM and ICM */
- outb(iobase + U24_OGMCMD, 0);
- outb(iobase + U24_ICMCMD, 0);
- /* make sure interrupts are enabled */
-#ifdef UHADEBUG
- printf("u24_init: lmask=%02x, smask=%02x\n",
- inb(iobase + U24_LMASK), inb(iobase + U24_SMASK));
-#endif
- outb(iobase + U24_LMASK, 0xd2); /* XXX */
- outb(iobase + U24_SMASK, 0x92); /* XXX */
-}
-
-void
-uhaminphys(bp)
- struct buf *bp;
-{
-
- if (bp->b_bcount > ((UHA_NSEG - 1) << PGSHIFT))
- bp->b_bcount = ((UHA_NSEG - 1) << PGSHIFT);
- minphys(bp);
-}
-
-/*
- * start a scsi operation given the command and the data address. Also
- * needs the unit, target and lu.
- */
-int
-uha_scsi_cmd(xs)
- struct scsi_xfer *xs;
-{
- struct scsi_link *sc_link = xs->sc_link;
- struct uha_softc *uha = sc_link->adapter_softc;
- struct uha_mscp *mscp;
- struct uha_dma_seg *sg;
- int seg; /* scatter gather seg being worked on */
- u_long thiskv, thisphys, nextphys;
- int bytes_this_seg, bytes_this_page, datalen, flags;
-#ifdef TFS
- struct iovec *iovp;
-#endif
- int s;
-
- SC_DEBUG(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 ((flags & (ITSDONE|INUSE)) != INUSE) {
- printf("%s: done or not in use?\n", uha->sc_dev.dv_xname);
- xs->flags &= ~ITSDONE;
- xs->flags |= INUSE;
- }
- if ((mscp = uha_get_mscp(uha, flags)) == NULL) {
- xs->error = XS_DRIVER_STUFFUP;
- return TRY_AGAIN_LATER;
- }
- mscp->xs = xs;
-
- /*
- * Put all the arguments for the xfer in the mscp
- */
- if (flags & SCSI_RESET) {
- mscp->opcode = UHA_SDR;
- mscp->ca = 0x01;
- } else {
- mscp->opcode = UHA_TSP;
- /* XXX Not for tapes. */
- mscp->ca = 0x01;
- }
- mscp->xdir = UHA_SDET;
- mscp->dcn = 0x00;
- mscp->chan = 0x00;
- mscp->target = sc_link->target;
- mscp->lun = sc_link->lun;
- mscp->scsi_cmd_length = xs->cmdlen;
- mscp->sense_ptr = KVTOPHYS(&mscp->mscp_sense);
- mscp->req_sense_length = sizeof(mscp->mscp_sense);
- mscp->host_stat = 0x00;
- mscp->target_stat = 0x00;
-
- if (xs->datalen && (flags & SCSI_RESET) == 0) {
- mscp->data_addr = KVTOPHYS(mscp->uha_dma);
- 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) {
- sg->seg_addr = (physaddr)iovp->iov_base;
- sg->seg_len = iovp->iov_len;
- xs->datalen += iovp->iov_len;
- SC_DEBUGN(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(sc_link, SDEV_DB4,
- ("%d @0x%x:- ", xs->datalen, xs->data));
- datalen = xs->datalen;
- thiskv = (int) xs->data;
- thisphys = KVTOPHYS(thiskv);
-
- while (datalen && seg < UHA_NSEG) {
- bytes_this_seg = 0;
-
- /* put in the base address */
- sg->seg_addr = thisphys;
-
- SC_DEBUGN(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 & ~PGOFSET) + NBPG;
- 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 & ~PGOFSET) + NBPG;
- if (datalen)
- thisphys = KVTOPHYS(thiskv);
- }
- /*
- * next page isn't contiguous, finish the seg
- */
- SC_DEBUGN(sc_link, SDEV_DB4,
- ("(0x%x)", bytes_this_seg));
- sg->seg_len = bytes_this_seg;
- sg++;
- seg++;
- }
- }
- /* end of iov/kv decision */
- mscp->data_length = xs->datalen;
- mscp->sg_num = seg;
- SC_DEBUGN(sc_link, SDEV_DB4, ("\n"));
- if (datalen) {
- /*
- * there's still data, must have run out of segs!
- */
- printf("%s: uha_scsi_cmd, more than %d dma segs\n",
- uha->sc_dev.dv_xname, UHA_NSEG);
- xs->error = XS_DRIVER_STUFFUP;
- uha_free_mscp(uha, mscp, flags);
- return COMPLETE;
- }
- } else { /* No data xfer, use non S/G values */
- mscp->data_addr = (physaddr)0;
- mscp->data_length = 0;
- mscp->sgth = 0x00;
- mscp->sg_num = 0;
- }
- mscp->link_id = 0;
- mscp->link_addr = (physaddr)0;
-
- /*
- * Put the scsi command in the mscp and start it
- */
- if ((flags & SCSI_RESET) == 0)
- bcopy(xs->cmd, &mscp->scsi_cmd, mscp->scsi_cmd_length);
-
- s = splbio();
-
- (uha->send_mbox)(uha, mscp);
-
- /*
- * Usually return SUCCESSFULLY QUEUED
- */
- if ((flags & SCSI_POLL) == 0) {
- timeout(uha_timeout, mscp, (xs->timeout * hz) / 1000);
- splx(s);
- return SUCCESSFULLY_QUEUED;
- }
-
- splx(s);
-
- /*
- * If we can't use interrupts, poll on completion
- */
- if ((uha->poll)(uha, xs, xs->timeout)) {
- uha_timeout(mscp);
- if (!(uha->abort)(uha, mscp))
- uha_timeout(mscp);
- }
- return COMPLETE;
-}
-
-void
-uha_timeout(arg)
- void *arg;
-{
- struct uha_mscp *mscp = arg;
- struct scsi_xfer *xs = mscp->xs;
- struct scsi_link *sc_link = xs->sc_link;
- struct uha_softc *uha = sc_link->adapter_softc;
- int s;
-
- sc_print_addr(sc_link);
- printf("timed out");
-
- s = splbio();
-
- if (!(uha->abort)(uha, mscp) || (mscp->flags == MSCP_ABORTED)) {
- /* abort timed out */
- printf(" AGAIN\n");
- mscp->xs->retries = 0; /* I MEAN IT ! */
- mscp->host_stat = UHA_SBUS_TIMEOUT;
- uha_done(uha, mscp);
- } else {
- /* abort the operation that has timed out */
- printf("\n");
- mscp->flags = MSCP_ABORTED;
- /* 2 secs for the abort */
- if ((xs->flags & SCSI_POLL) == 0)
- timeout(uha_timeout, mscp, 2 * hz);
- }
-
- splx(s);
-}
-
-#ifdef UHADEBUG
-void
-uha_print_mscp(mscp)
- struct uha_mscp *mscp;
-{
-
- printf("mscp:%x op:%x cmdlen:%d senlen:%d\n",
- mscp, mscp->opcode, mscp->scsi_cmd_length, mscp->req_sense_length);
- printf(" sg:%d sgnum:%x datlen:%d hstat:%x tstat:%x flags:%x\n",
- mscp->sgth, mscp->sg_num, mscp->datalen, mscp->host_stat,
- mscp->target_stat, mscp->flags);
- show_scsi_cmd(mscp->xs);
-}
-
-void
-uha_print_active_mscp(uha)
- struct uha_softc *uha;
-{
- struct uha_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;
- }
- }
-}
-#endif /*UHADEBUG */