1 /* $NetBSD: mq200_pci.c,v 1.6 2023/12/20 14:50:02 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2002 TAKEMURA Shin
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 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: mq200_pci.c,v 1.6 2023/12/20 14:50:02 thorpej Exp $");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/device.h>
39
40 #include <dev/pci/pcireg.h>
41 #include <dev/pci/pcivar.h>
42 #include <dev/pci/pcidevs.h>
43 #include <dev/pci/pciio.h>
44
45 #include <hpcmips/dev/mq200var.h>
46
47 struct mq200_pci_softc {
48 struct mq200_softc sc_mq200;
49 pci_chipset_tag_t sc_pc;
50 pcitag_t sc_pcitag;
51 };
52
53 int mq200_pci_match(device_t, cfdata_t, void *);
54 void mq200_pci_attach(device_t, device_t, void *);
55
56 CFATTACH_DECL_NEW(mqvideo_pci, sizeof(struct mq200_pci_softc),
57 mq200_pci_match, mq200_pci_attach, NULL, NULL);
58
59 int
mq200_pci_match(device_t parent,cfdata_t match,void * aux)60 mq200_pci_match(device_t parent, cfdata_t match, void *aux)
61 {
62 struct pci_attach_args *pa = aux;
63
64 /* check vendor id and product id */
65 if (pa->pa_id !=
66 PCI_ID_CODE(PCI_VENDOR_MEDIAQ, PCI_PRODUCT_MEDIAQ_MQ200))
67 return (0);
68
69 return (1);
70 }
71
72 void
mq200_pci_attach(device_t parent,device_t self,void * aux)73 mq200_pci_attach(device_t parent, device_t self, void *aux)
74 {
75 struct mq200_pci_softc *psc = device_private(self);
76 struct mq200_softc *sc = &psc->sc_mq200;
77 struct pci_attach_args *pa = aux;
78 int res;
79
80 sc->sc_dev = self;
81 psc->sc_pc = pa->pa_pc;
82 psc->sc_pcitag = pa->pa_tag;
83
84 /* check whether it is disabled by firmware */
85 if (!(pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) &
86 PCI_COMMAND_MEM_ENABLE)) {
87 printf("%s: disabled\n", device_xname(sc->sc_dev));
88 return;
89 }
90
91 /* Base Address Register 0: base address of control registers */
92 res = pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM,
93 0, &sc->sc_iot, &sc->sc_ioh, NULL, NULL);
94 if (res != 0) {
95 printf("%s: can't map registers\n", device_xname(sc->sc_dev));
96 return;
97 }
98
99 /* Base Address Register 1: base address of frame buffer */
100 res = pci_mapreg_info(psc->sc_pc, psc->sc_pcitag, PCI_MAPREG_START+4,
101 PCI_MAPREG_TYPE_MEM, &sc->sc_baseaddr, NULL, NULL);
102 if (res != 0) {
103 printf("%s: can't map frame buffer\n", device_xname(sc->sc_dev));
104 return;
105 }
106
107 mq200_attach(sc);
108 }
109