xref: /openbsd/sys/dev/pci/twe_pci.c (revision 09467b48)
1 /*	$OpenBSD: twe_pci.c,v 1.13 2011/04/03 15:36:03 jasper Exp $	*/
2 
3 /*
4  * Copyright (c) 2000 Michael Shalayeff
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
20  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
25  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
26  * THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/kernel.h>
32 #include <sys/malloc.h>
33 #include <sys/device.h>
34 
35 #include <dev/pci/pcidevs.h>
36 #include <dev/pci/pcivar.h>
37 
38 #include <machine/bus.h>
39 
40 #include <scsi/scsi_all.h>
41 #include <scsi/scsi_disk.h>
42 #include <scsi/scsiconf.h>
43 
44 #include <dev/ic/twereg.h>
45 #include <dev/ic/twevar.h>
46 
47 #define	TWE_BAR	0x10
48 
49 int	twe_pci_match(struct device *, void *, void *);
50 void	twe_pci_attach(struct device *, struct device *, void *);
51 
52 struct cfattach twe_pci_ca = {
53 	sizeof(struct twe_softc), twe_pci_match, twe_pci_attach
54 };
55 
56 const struct pci_matchid twe_pci_devices[] = {
57 	{ PCI_VENDOR_3WARE, PCI_PRODUCT_3WARE_ESCALADE },
58 	{ PCI_VENDOR_3WARE, PCI_PRODUCT_3WARE_ESCALADE_ASIC }
59 };
60 
61 int
62 twe_pci_match(parent, match, aux)
63 	struct device *parent;
64 	void *match;
65 	void *aux;
66 {
67 	return (pci_matchbyid((struct pci_attach_args *)aux, twe_pci_devices,
68 	    nitems(twe_pci_devices)));
69 }
70 
71 void
72 twe_pci_attach(parent, self, aux)
73 	struct device *parent, *self;
74 	void *aux;
75 {
76 	struct twe_softc *sc = (struct twe_softc *)self;
77 	struct pci_attach_args *pa = aux;
78 	pci_intr_handle_t ih;
79 	const char *intrstr;
80 	bus_size_t size;
81 
82 	if (pci_mapreg_map(pa, TWE_BAR, PCI_MAPREG_TYPE_IO, 0,
83 	    &sc->iot, &sc->ioh, NULL, &size, 0)) {
84 		printf(": can't map controller i/o space\n");
85 		return;
86 	}
87 	sc->dmat = pa->pa_dmat;
88 
89 	if (pci_intr_map(pa, &ih)) {
90 		printf(": can't map interrupt\n");
91 		bus_space_unmap(sc->iot, sc->ioh, size);
92 		return;
93 	}
94 	intrstr = pci_intr_string(pa->pa_pc, ih);
95 	sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, twe_intr, sc,
96 	    sc->sc_dev.dv_xname);
97 	if (!sc->sc_ih) {
98 		printf(": can't establish interrupt");
99 		if (intrstr)
100 			printf(" at %s", intrstr);
101 		printf("\n");
102 		bus_space_unmap(sc->iot, sc->ioh, size);
103 		return;
104 	}
105 
106 	printf(": %s\n%s", intrstr, sc->sc_dev.dv_xname);
107 
108 	if (twe_attach(sc)) {
109 		pci_intr_disestablish(pa->pa_pc, sc->sc_ih);
110 		sc->sc_ih = NULL;
111 		bus_space_unmap(sc->iot, sc->ioh, size);
112 	}
113 }
114