1 /* $NetBSD: igsfb_pci.c,v 1.2 2002/04/04 18:50:28 uwe Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Valeriy E. Ushakov 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 AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /* 31 * Integraphics Systems IGA 1682 and (untested) CyberPro 2k. 32 */ 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: igsfb_pci.c,v 1.2 2002/04/04 18:50:28 uwe Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/device.h> 40 #include <sys/malloc.h> 41 #include <sys/buf.h> 42 43 #include <machine/autoconf.h> 44 #include <machine/bus.h> 45 #include <machine/intr.h> 46 47 #include <dev/pci/pcivar.h> 48 #include <dev/pci/pcireg.h> 49 #include <dev/pci/pcidevs.h> 50 51 #include <dev/wscons/wsconsio.h> 52 #include <dev/ic/igsfbreg.h> 53 #include <dev/ic/igsfbvar.h> 54 55 56 static int igsfb_pci_match(struct device *, struct cfdata *, void *); 57 static void igsfb_pci_attach(struct device *, struct device *, void *); 58 59 const struct cfattach igsfb_pci_ca = { 60 sizeof(struct igsfb_softc), igsfb_pci_match, igsfb_pci_attach, 61 }; 62 63 64 static int 65 igsfb_pci_match(parent, match, aux) 66 struct device *parent; 67 struct cfdata *match; 68 void *aux; 69 { 70 struct pci_attach_args *pa = aux; 71 72 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEGRAPHICS) 73 return (0); 74 75 /* probably can drive iga1680 and cyberpro cards as well */ 76 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEGRAPHICS_IGA1682) 77 return (1); 78 79 return (0); 80 } 81 82 83 /* 84 * Note, that the chip may still be not enabled (e.g. JavaStation PROM 85 * doesn't bother to init the chip if PROM output goes to serial). 86 */ 87 static void 88 igsfb_pci_attach(parent, self, aux) 89 struct device *parent, *self; 90 void *aux; 91 { 92 struct igsfb_softc *sc = (struct igsfb_softc *)self; 93 struct pci_attach_args *pa = aux; 94 bus_addr_t iobase; 95 int ioflags; 96 int isconsole; 97 char devinfo[256]; 98 99 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 100 printf(": %s, revision 0x%02x\n", devinfo, PCI_REVISION(pa->pa_class)); 101 102 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEGRAPHICS_IGA1682) 103 sc->sc_is2k = 0; 104 else 105 sc->sc_is2k = 1; 106 107 108 #ifdef __sparc__ 109 /* 110 * We run javastation with PCIC doing byte-swapping on data 111 * travelling to/from PCI, so compensate for that. 112 */ 113 sc->sc_hwflags |= IGSFB_HW_BSWAP; 114 #endif 115 116 /* 117 * Memory space. Configure it first since for cyber2k we also 118 * use memory-mapped i/o access. Note that we are not mapping 119 * any of it yet. 120 */ 121 #define IGS_MEM_MAPREG (PCI_MAPREG_START + 0) 122 123 sc->sc_memt = pa->pa_memt; 124 if (pci_mapreg_info(pa->pa_pc, pa->pa_tag, 125 IGS_MEM_MAPREG, PCI_MAPREG_TYPE_MEM, 126 &sc->sc_memaddr, &sc->sc_memsz, &sc->sc_memflags) != 0) 127 { 128 printf("unable to configure memory space\n"); 129 return; 130 } 131 132 /* 133 * I/O space. 134 */ 135 if (sc->sc_is2k) { /* XXX: untested */ 136 sc->sc_iot = sc->sc_memt; 137 iobase = sc->sc_memaddr | IGS_MEM_MMIO_SELECT; 138 ioflags = sc->sc_memflags; 139 } else { 140 /* feh, 1682 denies having io space registers */ 141 sc->sc_iot = pa->pa_iot; 142 iobase = 0; 143 ioflags = 0; 144 } 145 146 if (bus_space_map(sc->sc_iot, iobase, IGS_IO_SIZE, ioflags, 147 &sc->sc_ioh) != 0) 148 { 149 printf("unable to map io registers\n"); 150 return; 151 } 152 153 /* TODO: Graphic coprocessor registers. */ 154 155 if (igsfb_io_enable(sc->sc_iot, iobase) != 0) 156 return; 157 158 igsfb_mem_enable(sc); 159 160 /* XXX: sparc'ism */ 161 if (PCITAG_NODE(pa->pa_tag) == prom_instance_to_package(prom_stdout())) 162 isconsole = 1; 163 else 164 isconsole = 0; 165 166 igsfb_common_attach(sc, isconsole); 167 } 168