1 /* $NetBSD: iha_pci.c,v 1.20 2018/12/09 11:14:02 jdolecek Exp $ */
2
3 /*-
4 * Copyright (c) 2001 Izumi Tsutsui. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 /*-
28 * Device driver for the INI-9XXXU/UW or INIC-940/950 PCI SCSI Controller.
29 *
30 * Written for 386bsd and FreeBSD by
31 * Winston Hung <winstonh@initio.com>
32 *
33 * Copyright (c) 1997-1999 Initio Corp.
34 * Copyright (c) 2000 Ken Westerback
35 * All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer,
42 * without modification, immediately at the beginning of the file.
43 * 2. The name of the author may not be used to endorse or promote products
44 * derived from this software without specific prior written permission.
45 *
46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
47 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
48 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
49 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
50 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
51 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
52 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
54 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
55 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
56 * THE POSSIBILITY OF SUCH DAMAGE.
57 */
58
59 /*
60 * Ported to NetBSD by Izumi Tsutsui <tsutsui@NetBSD.org> from OpenBSD:
61 * $OpenBSD: iha_pci.c,v 1.2 2001/03/29 23:53:38 krw Exp $
62 */
63
64 #include <sys/cdefs.h>
65 __KERNEL_RCSID(0, "$NetBSD: iha_pci.c,v 1.20 2018/12/09 11:14:02 jdolecek Exp $");
66
67 #include <sys/param.h>
68 #include <sys/systm.h>
69 #include <sys/device.h>
70
71 #include <dev/pci/pcidevs.h>
72 #include <dev/pci/pcivar.h>
73
74 #include <dev/scsipi/scsipi_all.h>
75 #include <dev/scsipi/scsi_all.h>
76 #include <dev/scsipi/scsiconf.h>
77
78 #include <dev/ic/ihavar.h>
79
80 static int iha_pci_match(device_t, cfdata_t, void *);
81 static void iha_pci_attach(device_t, device_t, void *);
82
83 CFATTACH_DECL_NEW(iha_pci, sizeof(struct iha_softc),
84 iha_pci_match, iha_pci_attach, NULL, NULL);
85
86 static int
iha_pci_match(device_t parent,cfdata_t cf,void * aux)87 iha_pci_match(device_t parent, cfdata_t cf, void *aux)
88 {
89 struct pci_attach_args *pa = aux;
90
91 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INITIO)
92 return 0;
93
94 switch (PCI_PRODUCT(pa->pa_id)) {
95 case PCI_PRODUCT_INITIO_I940:
96 case PCI_PRODUCT_INITIO_I950:
97 return 1;
98 }
99
100 return 0;
101 }
102
103 static void
iha_pci_attach(device_t parent,device_t self,void * aux)104 iha_pci_attach(device_t parent, device_t self, void *aux)
105 {
106 struct iha_softc *sc = device_private(self);
107 struct pci_attach_args *pa = aux;
108 bus_space_tag_t iot;
109 bus_space_handle_t ioh;
110 pci_intr_handle_t ih;
111 const char *intrstr;
112 pcireg_t command;
113 int ioh_valid;
114 char intrbuf[PCI_INTRSTR_LEN];
115
116 sc->sc_dev = self;
117
118 pci_aprint_devinfo(pa, NULL);
119
120 command = pci_conf_read(pa->pa_pc,pa->pa_tag,PCI_COMMAND_STATUS_REG);
121 command |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_PARITY_ENABLE;
122
123 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
124
125 /*
126 * XXX - Tried memory mapping (using code from adw and ahc)
127 * rather that IO mapping, but it didn't work at all..
128 */
129 ioh_valid = pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_IO, 0,
130 &iot, &ioh, NULL, NULL);
131
132 if (ioh_valid != 0) {
133 aprint_error_dev(self, "unable to map registers\n");
134 return;
135 }
136
137 sc->sc_iot = iot;
138 sc->sc_ioh = ioh;
139 sc->sc_dmat = pa->pa_dmat;
140
141 if (pci_intr_map(pa, &ih)) {
142 aprint_error_dev(self, "couldn't map interrupt\n");
143 return;
144 }
145 intrstr = pci_intr_string(pa->pa_pc, ih, intrbuf, sizeof(intrbuf));
146
147 sc->sc_ih = pci_intr_establish_xname(pa->pa_pc, ih, IPL_BIO, iha_intr,
148 sc, device_xname(self));
149
150 if (sc->sc_ih == NULL) {
151 aprint_error_dev(self, "couldn't establish interrupt");
152 if (intrstr != NULL)
153 aprint_error(" at %s", intrstr);
154 aprint_error("\n");
155 return;
156 }
157 aprint_normal_dev(self, "interrupting at %s\n", intrstr);
158
159 iha_attach(sc);
160 }
161