1 /* $NetBSD: mq200_pci.c,v 1.5 2012/10/27 17:17:52 chs 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 1.5 2012/10/27 17:17:52 chs 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 48 struct mq200_pci_softc { 49 struct mq200_softc sc_mq200; 50 pci_chipset_tag_t sc_pc; 51 pcitag_t sc_pcitag; 52 }; 53 54 int mq200_pci_match(device_t, cfdata_t, void *); 55 void mq200_pci_attach(device_t, device_t, void *); 56 57 CFATTACH_DECL_NEW(mqvideo_pci, sizeof(struct mq200_pci_softc), 58 mq200_pci_match, mq200_pci_attach, NULL, NULL); 59 60 int 61 mq200_pci_match(device_t parent, cfdata_t match, void *aux) 62 { 63 struct pci_attach_args *pa = aux; 64 65 /* check vendor id and product id */ 66 if (pa->pa_id != 67 PCI_ID_CODE(PCI_VENDOR_MEDIAQ, PCI_PRODUCT_MEDIAQ_MQ200)) 68 return (0); 69 70 return (1); 71 } 72 73 void 74 mq200_pci_attach(device_t parent, device_t self, void *aux) 75 { 76 struct mq200_pci_softc *psc = device_private(self); 77 struct mq200_softc *sc = &psc->sc_mq200; 78 struct pci_attach_args *pa = aux; 79 int res; 80 81 sc->sc_dev = self; 82 psc->sc_pc = pa->pa_pc; 83 psc->sc_pcitag = pa->pa_tag; 84 85 /* check whether it is disabled by firmware */ 86 if (!(pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) & 87 PCI_COMMAND_MEM_ENABLE)) { 88 printf("%s: disabled\n", device_xname(sc->sc_dev)); 89 return; 90 } 91 92 /* Base Address Register 0: base address of control registers */ 93 res = pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM, 94 0, &sc->sc_iot, &sc->sc_ioh, NULL, NULL); 95 if (res != 0) { 96 printf("%s: can't map registers\n", device_xname(sc->sc_dev)); 97 return; 98 } 99 100 /* Base Address Register 1: base address of frame buffer */ 101 res = pci_mapreg_info(psc->sc_pc, psc->sc_pcitag, PCI_MAPREG_START+4, 102 PCI_MAPREG_TYPE_MEM, &sc->sc_baseaddr, NULL, NULL); 103 if (res != 0) { 104 printf("%s: can't map frame buffer\n", device_xname(sc->sc_dev)); 105 return; 106 } 107 108 mq200_attach(sc); 109 } 110