convert to not assume existence of softc at probe time.
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cgd
parent
8b404fdede
commit
76f1f884eb
@ -1,4 +1,4 @@
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/* $NetBSD: bt742a.c,v 1.52 1996/03/16 02:54:27 cgd Exp $ */
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/* $NetBSD: bt742a.c,v 1.53 1996/03/16 03:20:25 cgd Exp $ */
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/*
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* Copyright (c) 1994 Charles Hannum. All rights reserved.
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@ -357,7 +357,7 @@ struct bt_ccb *bt_get_ccb __P((struct bt_softc *, int));
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struct bt_ccb *bt_ccb_phys_kv __P((struct bt_softc *, u_long));
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struct bt_mbx_out *bt_send_mbo __P((struct bt_softc *, int, struct bt_ccb *));
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void bt_done __P((struct bt_softc *, struct bt_ccb *));
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int bt_find __P((struct bt_softc *));
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int bt_find __P((struct isa_attach_args *, struct bt_softc *));
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void bt_init __P((struct bt_softc *));
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void bt_inquire_setup_information __P((struct bt_softc *));
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void btminphys __P((struct buf *));
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@ -395,7 +395,7 @@ struct cfdriver btcd = {
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#define BT_RESET_TIMEOUT 1000
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/*
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* bt_cmd(bt, icnt, ocnt,wait, retval, opcode, args)
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* bt_cmd(iobase, sc, icnt, ocnt,wait, retval, opcode, args)
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*
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* Activate Adapter command
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* icnt: number of args (outbound bytes written after opcode)
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@ -410,7 +410,8 @@ struct cfdriver btcd = {
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* tells it to read in a scsi command.
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*/
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int
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bt_cmd(sc, icnt, ocnt, wait, retval, opcode, args)
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bt_cmd(iobase, sc, icnt, ocnt, wait, retval, opcode, args)
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int iobase;
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struct bt_softc *sc;
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int icnt, ocnt, wait;
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u_char *retval;
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@ -418,11 +419,16 @@ bt_cmd(sc, icnt, ocnt, wait, retval, opcode, args)
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u_char args;
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{
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unsigned *ic = &opcode;
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int iobase = sc->sc_iobase;
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const char *name;
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u_char oc;
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register i;
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int sts;
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if (sc == NULL)
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name = sc->sc_dev.dv_xname;
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else
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name = "(probe)";
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/*
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* multiply the wait argument by a big constant
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* zero defaults to 1
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@ -446,7 +452,7 @@ bt_cmd(sc, icnt, ocnt, wait, retval, opcode, args)
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}
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if (!i) {
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printf("%s: bt_cmd, host not idle(0x%x)\n",
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sc->sc_dev.dv_xname, sts);
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name, sts);
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return ENXIO;
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}
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}
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@ -473,8 +479,7 @@ bt_cmd(sc, icnt, ocnt, wait, retval, opcode, args)
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delay(10);
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}
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if (!i) {
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printf("%s: bt_cmd, cmd/data port full\n",
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sc->sc_dev.dv_xname);
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printf("%s: bt_cmd, cmd/data port full\n", name);
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outb(iobase + BT_CTRL_STAT_PORT, BT_SRST);
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return ENXIO;
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}
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@ -494,7 +499,7 @@ bt_cmd(sc, icnt, ocnt, wait, retval, opcode, args)
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}
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if (!i) {
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printf("bt%d: bt_cmd, cmd/data port empty %d\n",
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sc->sc_dev.dv_xname, ocnt);
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name, ocnt);
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return ENXIO;
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}
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oc = inb(iobase + BT_CMD_DATA_PORT);
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@ -513,7 +518,7 @@ bt_cmd(sc, icnt, ocnt, wait, retval, opcode, args)
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}
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if (!i) {
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printf("%s: bt_cmd, host not finished(0x%x)\n",
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sc->sc_dev.dv_xname, sts);
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name, sts);
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return ENXIO;
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}
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outb(iobase + BT_CTRL_STAT_PORT, BT_IRST);
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@ -539,35 +544,16 @@ btprobe(parent, match, aux)
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return 0;
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#endif
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sc->sc_iobase = ia->ia_iobase;
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/*
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* Try initialise a unit at this location
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* sets up dma and bus speed, loads sc->sc_irq
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*/
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if (bt_find(sc) != 0)
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if (bt_find(ia, NULL) != 0)
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return 0;
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if (ia->ia_irq != IRQUNK) {
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if (ia->ia_irq != sc->sc_irq) {
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printf("%s: irq mismatch; kernel configured %d != board configured %d\n",
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sc->sc_dev.dv_xname, ia->ia_irq, sc->sc_irq);
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return 0;
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}
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} else
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ia->ia_irq = sc->sc_irq;
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if (ia->ia_drq != DRQUNK) {
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if (ia->ia_drq != sc->sc_drq) {
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printf("%s: drq mismatch; kernel configured %d != board configured %d\n",
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sc->sc_dev.dv_xname, ia->ia_drq, sc->sc_drq);
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return 0;
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}
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} else
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ia->ia_drq = sc->sc_drq;
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ia->ia_msize = 0;
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ia->ia_iosize = 4;
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/* IRQ and DRQ set by bt_find() */
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return 1;
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}
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@ -590,10 +576,14 @@ btattach(parent, self, aux)
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void *aux;
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{
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struct isa_attach_args *ia = aux;
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struct bt_softc *sc = (void *)self;
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struct bt_softc *sc = (struct bt_softc *)self;
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if (ia->ia_drq != DRQUNK)
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isa_dmacascade(ia->ia_drq);
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if (bt_find(ia, sc) != 0)
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panic("btattach: bt_find of %s failed", self->dv_xname);
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sc->sc_iobase = ia->ia_iobase;
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if (sc->sc_drq != DRQUNK)
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isa_dmacascade(sc->sc_drq);
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bt_init(sc);
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TAILQ_INIT(&sc->sc_free_ccb);
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@ -612,7 +602,7 @@ btattach(parent, self, aux)
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#ifdef NEWCONFIG
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isa_establish(&sc->sc_id, &sc->sc_dev);
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#endif
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sc->sc_ih = isa_intr_establish(ia->ia_irq, IST_EDGE, IPL_BIO, btintr,
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sc->sc_ih = isa_intr_establish(sc->sc_irq, IST_EDGE, IPL_BIO, btintr,
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sc);
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/*
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@ -981,14 +971,16 @@ bt_done(sc, ccb)
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* Find the board and find it's irq/drq
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*/
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int
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bt_find(sc)
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bt_find(ia, sc)
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struct isa_attach_args *ia;
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struct bt_softc *sc;
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{
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int iobase = sc->sc_iobase;
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int iobase = ia->ia_iobase;
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u_char ad[4];
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volatile int i, sts;
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struct bt_extended_inquire info;
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struct bt_config conf;
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int irq, drq;
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/*
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* reset board, If it doesn't respond, assume
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@ -1007,14 +999,15 @@ bt_find(sc)
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#ifdef UTEST
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printf("bt_find: No answer from bt742a board\n");
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#endif
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return ENXIO;
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return 1;
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}
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/*
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* Check that we actually know how to use this board.
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*/
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delay(1000);
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bt_cmd(sc, 1, sizeof(info), 0, &info, BT_INQUIRE_EXTENDED, sizeof(info));
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bt_cmd(iobase, sc, 1, sizeof(info), 0, &info, BT_INQUIRE_EXTENDED,
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sizeof(info));
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switch (info.bus_type) {
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case BT_BUS_TYPE_24BIT:
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/* XXXX How do we avoid conflicting with the aha1542 probe? */
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@ -1022,11 +1015,10 @@ bt_find(sc)
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break;
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case BT_BUS_TYPE_MCA:
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/* We don't grok MicroChannel (yet). */
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return EINVAL;
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return 1;
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default:
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printf("%s: illegal bus type %c\n", sc->sc_dev.dv_xname,
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info.bus_type);
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return EINVAL;
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printf("bt_find: illegal bus type %c\n", info.bus_type);
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return 1;
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}
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/*
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@ -1034,56 +1026,69 @@ bt_find(sc)
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* jumpers and save int level
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*/
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delay(1000);
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bt_cmd(sc, 0, sizeof(conf), 0, &conf, BT_CONF_GET);
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bt_cmd(iobase, sc, 0, sizeof(conf), 0, &conf, BT_CONF_GET);
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switch (conf.chan) {
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case EISADMA:
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sc->sc_drq = DRQUNK;
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drq = DRQUNK;
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break;
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case CHAN0:
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sc->sc_drq = 0;
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drq = 0;
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break;
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case CHAN5:
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sc->sc_drq = 5;
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drq = 5;
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break;
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case CHAN6:
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sc->sc_drq = 6;
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drq = 6;
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break;
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case CHAN7:
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sc->sc_drq = 7;
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drq = 7;
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break;
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default:
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printf("%s: illegal dma setting %x\n", sc->sc_dev.dv_xname,
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conf.chan);
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return EIO;
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printf("bt_find: illegal dma setting %x\n", conf.chan);
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return 1;
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}
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switch (conf.intr) {
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case INT9:
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sc->sc_irq = 9;
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irq = 9;
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break;
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case INT10:
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sc->sc_irq = 10;
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irq = 10;
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break;
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case INT11:
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sc->sc_irq = 11;
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irq = 11;
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break;
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case INT12:
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sc->sc_irq = 12;
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irq = 12;
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break;
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case INT14:
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sc->sc_irq = 14;
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irq = 14;
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break;
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case INT15:
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sc->sc_irq = 15;
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irq = 15;
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break;
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default:
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printf("%s: illegal int setting %x\n", sc->sc_dev.dv_xname,
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conf.intr);
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return EIO;
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printf("bt_find: illegal int setting %x\n", conf.intr);
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return 1;
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}
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/* who are we on the scsi bus? */
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sc->sc_scsi_dev = conf.scsi_dev;
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if (sc != NULL) {
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/* who are we on the scsi bus? */
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sc->sc_scsi_dev = conf.scsi_dev;
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sc->sc_iobase = iobase;
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sc->sc_irq = irq;
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sc->sc_drq = drq;
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} else {
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if (ia->ia_irq == IRQUNK)
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ia->ia_irq = irq;
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else if (ia->ia_irq != irq)
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return 1;
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if (ia->ia_drq == DRQUNK)
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ia->ia_drq = drq;
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else if (ia->ia_drq != drq)
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return 1;
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}
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return 0;
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}
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@ -1095,6 +1100,7 @@ void
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bt_init(sc)
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struct bt_softc *sc;
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{
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int iobase = sc->sc_iobase;
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u_char ad[4];
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int i;
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@ -1103,7 +1109,7 @@ bt_init(sc)
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*/
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*((physaddr *)ad) = KVTOPHYS(&sc->sc_mbx);
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bt_cmd(sc, 5, 0, 0, 0, BT_MBX_INIT_EXTENDED, BT_MBX_SIZE,
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bt_cmd(iobase, sc, 5, 0, 0, 0, BT_MBX_INIT_EXTENDED, BT_MBX_SIZE,
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ad[0], ad[1], ad[2], ad[3]);
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for (i = 0; i < BT_MBX_SIZE; i++) {
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@ -1124,25 +1130,27 @@ void
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bt_inquire_setup_information(sc)
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struct bt_softc *sc;
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{
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int iobase = sc->sc_iobase;
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struct bt_boardID bID;
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char dummy[8];
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struct bt_setup setup;
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int i;
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/* Inquire Board ID to Bt742 for firmware version */
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bt_cmd(sc, 0, sizeof(bID), 0, &bID, BT_INQUIRE);
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bt_cmd(iobase, sc, 0, sizeof(bID), 0, &bID, BT_INQUIRE);
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printf(": version %c.%c, ", bID.firm_revision, bID.firm_version);
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if (bID.firm_revision != '2') { /* XXXX */
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/* Enable round-robin scheme - appeared at firmware rev. 3.31 */
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bt_cmd(sc, 1, 0, 0, 0, BT_ROUND_ROBIN, BT_ENABLE);
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bt_cmd(iobase, sc, 1, 0, 0, 0, BT_ROUND_ROBIN, BT_ENABLE);
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}
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/* Inquire Installed Devices (to force synchronous negotiation) */
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bt_cmd(sc, 0, sizeof(dummy), 10, dummy, BT_DEV_GET);
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bt_cmd(iobase, sc, 0, sizeof(dummy), 10, dummy, BT_DEV_GET);
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/* Obtain setup information from Bt742. */
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bt_cmd(sc, 1, sizeof(setup), 0, &setup, BT_SETUP_GET, sizeof(setup));
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bt_cmd(iobase, sc, 1, sizeof(setup), 0, &setup, BT_SETUP_GET,
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sizeof(setup));
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printf("%s, %s, %d mbxs",
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setup.sync_neg ? "sync" : "async",
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