1 | /* $NetBSD: bha_pci.c,v 1.41 2016/10/13 17:11:09 jdolecek Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 1998 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Charles M. Hannum. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | #include <sys/cdefs.h> |
33 | __KERNEL_RCSID(0, "$NetBSD: bha_pci.c,v 1.41 2016/10/13 17:11:09 jdolecek Exp $" ); |
34 | |
35 | #include <sys/param.h> |
36 | #include <sys/systm.h> |
37 | #include <sys/device.h> |
38 | |
39 | #include <sys/bus.h> |
40 | #include <sys/intr.h> |
41 | |
42 | #include <dev/scsipi/scsipi_all.h> |
43 | #include <dev/scsipi/scsiconf.h> |
44 | |
45 | #include <dev/pci/pcivar.h> |
46 | #include <dev/pci/pcidevs.h> |
47 | |
48 | #include <dev/ic/bhareg.h> |
49 | #include <dev/ic/bhavar.h> |
50 | |
51 | #define PCI_CBIO 0x10 |
52 | |
53 | /* |
54 | * Check the slots looking for a board we recognise |
55 | * If we find one, note its address (slot) and call |
56 | * the actual probe routine to check it out. |
57 | */ |
58 | static int |
59 | bha_pci_match(device_t parent, cfdata_t match, void *aux) |
60 | { |
61 | struct pci_attach_args *pa = aux; |
62 | bus_space_tag_t iot; |
63 | bus_space_handle_t ioh; |
64 | bus_size_t iosize; |
65 | int rv; |
66 | |
67 | if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_BUSLOGIC) |
68 | return (0); |
69 | |
70 | if (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER_NC && |
71 | PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER) |
72 | return (0); |
73 | |
74 | if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, |
75 | NULL, &iosize)) |
76 | return (0); |
77 | |
78 | rv = bha_find(iot, ioh); |
79 | |
80 | bus_space_unmap(iot, ioh, iosize); |
81 | |
82 | return (rv); |
83 | } |
84 | |
85 | /* |
86 | * Attach all the sub-devices we can find |
87 | */ |
88 | static void |
89 | bha_pci_attach(device_t parent, device_t self, void *aux) |
90 | { |
91 | struct pci_attach_args *pa = aux; |
92 | struct bha_softc *sc = device_private(self); |
93 | bus_space_tag_t iot; |
94 | bus_space_handle_t ioh; |
95 | pci_chipset_tag_t pc = pa->pa_pc; |
96 | pci_intr_handle_t ih; |
97 | pcireg_t csr; |
98 | const char *model, *intrstr; |
99 | char intrbuf[PCI_INTRSTR_LEN]; |
100 | |
101 | sc->sc_dev = self; |
102 | |
103 | aprint_naive(": SCSI controller\n" ); |
104 | |
105 | if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_MULTIMASTER_NC) |
106 | model = "BusLogic 9xxC SCSI" ; |
107 | else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_MULTIMASTER) |
108 | model = "BusLogic 9xxC SCSI" ; |
109 | else |
110 | model = "unknown model!" ; |
111 | aprint_normal(": %s\n" , model); |
112 | |
113 | if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, |
114 | NULL, NULL)) { |
115 | aprint_error_dev(sc->sc_dev, "unable to map device registers\n" ); |
116 | return; |
117 | } |
118 | |
119 | sc->sc_iot = iot; |
120 | sc->sc_ioh = ioh; |
121 | sc->sc_dmat = pa->pa_dmat; |
122 | if (!bha_find(iot, ioh)) |
123 | panic("bha_pci_attach: bha_find failed" ); |
124 | |
125 | sc->sc_dmaflags = 0; |
126 | |
127 | csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); |
128 | pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, |
129 | csr | PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_IO_ENABLE); |
130 | |
131 | if (pci_intr_map(pa, &ih)) { |
132 | aprint_error_dev(sc->sc_dev, "couldn't map interrupt\n" ); |
133 | return; |
134 | } |
135 | intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf)); |
136 | sc->sc_ih = pci_intr_establish_xname(pc, ih, IPL_BIO, bha_intr, sc, |
137 | device_xname(sc->sc_dev)); |
138 | if (sc->sc_ih == NULL) { |
139 | aprint_error_dev(sc->sc_dev, "couldn't establish interrupt" ); |
140 | if (intrstr != NULL) |
141 | aprint_error(" at %s" , intrstr); |
142 | aprint_error("\n" ); |
143 | return; |
144 | } |
145 | aprint_normal_dev(sc->sc_dev, "interrupting at %s\n" , intrstr); |
146 | |
147 | bha_attach(sc); |
148 | |
149 | bha_disable_isacompat(sc); |
150 | } |
151 | |
152 | CFATTACH_DECL_NEW(bha_pci, sizeof(struct bha_softc), |
153 | bha_pci_match, bha_pci_attach, NULL, NULL); |
154 | |