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bha_pci.c revision 1.1 
      1 #include <sys/types.h>
      2 #include <sys/param.h>
      3 #include <sys/device.h>
      4 
      5 #include <machine/bus.h>
      6 #include <machine/intr.h>
      7 
      8 #include <scsi/scsi_all.h>
      9 #include <scsi/scsiconf.h>
     10 
     11 #include <dev/pci/pcivar.h>
     12 #include <dev/pci/pcidevs.h>
     13 
     14 #include <dev/ic/bhareg.h>
     15 #include <dev/ic/bhavar.h>
     16 
     17 #define	PCI_CBIO	0x10
     18 
     19 int	bha_pci_match __P((struct device *, void *, void *));
     20 void	bha_pci_attach __P((struct device *, struct device *, void *));
     21 
     22 struct cfattach bha_pci_ca = {
     23 	sizeof(struct bha_softc), bha_pci_match, bha_pci_attach
     24 };
     25 
     26 /*
     27  * Check the slots looking for a board we recognise
     28  * If we find one, note it's address (slot) and call
     29  * the actual probe routine to check it out.
     30  */
     31 int
     32 bha_pci_match(parent, match, aux)
     33 	struct device *parent;
     34 	void *match, *aux;
     35 {
     36 	struct pci_attach_args *pa = aux;
     37 	bus_chipset_tag_t bc = pa->pa_bc;
     38 	bus_io_addr_t iobase;
     39 	bus_io_size_t iosize;
     40 	bus_io_handle_t ioh;
     41 	pci_chipset_tag_t pc = pa->pa_pc;
     42 	int rv;
     43 
     44 	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_BUSLOGIC)
     45 		return (0);
     46 
     47 	if (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_OLD946C &&
     48 	    PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_946C)
     49 		return (0);
     50 
     51 	if (pci_io_find(pc, pa->pa_tag, PCI_CBIO, &iobase, &iosize))
     52 		return (0);
     53 	if (bus_io_map(bc, iobase, iosize, &ioh))
     54 		return (0);
     55 
     56 	rv = bha_find(bc, ioh, NULL);
     57 
     58 	bus_io_unmap(bc, ioh, iosize);
     59 
     60 	return (rv);
     61 }
     62 
     63 /*
     64  * Attach all the sub-devices we can find
     65  */
     66 void
     67 bha_pci_attach(parent, self, aux)
     68 	struct device *parent, *self;
     69 	void *aux;
     70 {
     71 	struct pci_attach_args *pa = aux;
     72 	struct bha_softc *sc = (void *)self;
     73 	bus_chipset_tag_t bc = pa->pa_bc;
     74 	bus_io_addr_t iobase;
     75 	bus_io_size_t iosize;
     76 	bus_io_handle_t ioh;
     77 	pci_chipset_tag_t pc = pa->pa_pc;
     78 	pci_intr_handle_t ih;
     79 	pcireg_t csr;
     80 	const char *model, *intrstr;
     81 
     82 	if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_OLD946C)
     83 		model = "BusLogic 9xxC SCSI";
     84 	else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_946C)
     85 		model = "BusLogic 9xxC SCSI";
     86 	else
     87 		model = "unknown model!";
     88 	printf(": %s\n", model);
     89 
     90 	if (pci_io_find(pc, pa->pa_tag, PCI_CBIO, &iobase, &iosize))
     91 		panic("bha_attach: pci_io_find failed!");
     92 	if (bus_io_map(bc, iobase, iosize, &ioh))
     93 		panic("bha_attach: bus_io_map failed!");
     94 
     95 	sc->sc_bc = bc;
     96 	sc->sc_ioh = ioh;
     97 	if (!bha_find(bc, ioh, sc))
     98 		panic("bha_attach: bha_find failed!");
     99 
    100 	csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    101 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
    102 	    csr | PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_IO_ENABLE);
    103 
    104 	if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
    105 	    pa->pa_intrline, &ih)) {
    106 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
    107 		return;
    108 	}
    109 	intrstr = pci_intr_string(pc, ih);
    110 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, bha_intr, sc);
    111 	if (sc->sc_ih == NULL) {
    112 		printf("%s: couldn't establish interrupt",
    113 		    sc->sc_dev.dv_xname);
    114 		if (intrstr != NULL)
    115 			printf(" at %s", intrstr);
    116 		printf("\n");
    117 		return;
    118 	}
    119 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    120 
    121 	bha_attach(sc);
    122 }
    123