mq200_pci.c revision 1.1 
1/*	$NetBSD: mq200_pci.c,v 1.1 2002/05/11 14:10:06 takemura 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 1.1 2002/05/11 14:10:06 takemura Exp $");
34
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/kernel.h>
38#include <sys/device.h>
39#include <sys/malloc.h>
40
41#include <dev/pci/pcireg.h>
42#include <dev/pci/pcivar.h>
43#include <dev/pci/pcidevs.h>
44#include <dev/pci/pciio.h>
45
46#include <hpcmips/dev/mq200var.h>
47
48struct mq200_pci_softc {
49	struct mq200_softc	sc_mq200;
50	pci_chipset_tag_t sc_pc;
51	pcitag_t sc_pcitag;
52};
53
54int	mq200_pci_match(struct device *, struct cfdata *, void *);
55void	mq200_pci_attach(struct device *, struct device *, void *);
56
57struct cfattach mqvideo_pci_ca = {
58	sizeof(struct mq200_pci_softc),
59	mq200_pci_match,
60	mq200_pci_attach,
61};
62
63int
64mq200_pci_match(struct device *parent, struct cfdata *match, void *aux)
65{
66	struct pci_attach_args *pa = aux;
67
68	/* check vendor id and product id */
69	if (pa->pa_id !=
70	    PCI_ID_CODE(PCI_VENDOR_MEDIAQ, PCI_PRODUCT_MEDIAQ_MQ200))
71		return (0);
72
73	return (1);
74}
75
76void
77mq200_pci_attach(struct device *parent, struct device *self, void *aux)
78{
79	struct mq200_pci_softc *psc = (void *) self;
80	struct mq200_softc *sc = &psc->sc_mq200;
81	struct pci_attach_args *pa = aux;
82//	char devinfo[256];
83	int res;
84
85	psc->sc_pc = pa->pa_pc;
86	psc->sc_pcitag = pa->pa_tag;
87
88#if 0
89	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
90	printf(": %s (rev. 0x%02x)\n", devinfo,
91	    PCI_REVISION(pa->pa_class));
92#endif
93	/* check whether it is disabled by firmware */
94	if (!(pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) &
95	    PCI_COMMAND_MEM_ENABLE)) {
96		printf("%s: disabled\n", sc->sc_dev.dv_xname);
97		return;
98	}
99
100	/* Base Address Register 0: base address of control registers */
101	res = pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM,
102	    0, &sc->sc_iot, &sc->sc_ioh, NULL, NULL);
103	if (res != 0) {
104		printf("%s: can't map registers\n", sc->sc_dev.dv_xname);
105		return;
106	}
107
108	/* Base Address Register 1: base address of frame buffer */
109	res = pci_mapreg_info(psc->sc_pc, psc->sc_pcitag, PCI_MAPREG_START+4,
110	    PCI_MAPREG_TYPE_MEM, &sc->sc_baseaddr, NULL, NULL);
111	if (res != 0) {
112		printf("%s: can't map frame buffer\n", sc->sc_dev.dv_xname);
113		return;
114	}
115
116	mq200_attach(sc);
117}
118