igsfb_pci.c revision 1.3
1 /* $NetBSD: igsfb_pci.c,v 1.3 2002/07/21 02:56:35 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 168x and CyberPro series. 32 * Only tested on IGA 1682 in Krups JavaStation-NC. 33 */ 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: igsfb_pci.c,v 1.3 2002/07/21 02:56:35 uwe Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/device.h> 41 #include <sys/malloc.h> 42 #include <sys/buf.h> 43 44 #include <machine/autoconf.h> 45 #include <machine/bus.h> 46 #include <machine/intr.h> 47 48 #include <dev/pci/pcivar.h> 49 #include <dev/pci/pcireg.h> 50 #include <dev/pci/pcidevs.h> 51 52 #include <dev/wscons/wsconsio.h> 53 #include <dev/ic/igsfbreg.h> 54 #include <dev/ic/igsfbvar.h> 55 56 57 static int igsfb_pci_match(struct device *, struct cfdata *, void *); 58 static void igsfb_pci_attach(struct device *, struct device *, void *); 59 60 const struct cfattach igsfb_pci_ca = { 61 sizeof(struct igsfb_softc), igsfb_pci_match, igsfb_pci_attach, 62 }; 63 64 65 static int 66 igsfb_pci_match(parent, match, aux) 67 struct device *parent; 68 struct cfdata *match; 69 void *aux; 70 { 71 struct pci_attach_args *pa = aux; 72 73 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEGRAPHICS) 74 return (0); 75 76 /* probably can drive iga1680 and cyberpro cards as well */ 77 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEGRAPHICS_IGA1682) 78 return (1); 79 80 return (0); 81 } 82 83 84 /* 85 * Note, that the chip may still be not enabled (e.g. JavaStation PROM 86 * doesn't bother to init the chip if PROM output goes to serial). 87 */ 88 static void 89 igsfb_pci_attach(parent, self, aux) 90 struct device *parent, *self; 91 void *aux; 92 { 93 struct igsfb_softc *sc = (struct igsfb_softc *)self; 94 struct pci_attach_args *pa = aux; 95 bus_addr_t iobase; 96 int ioflags; 97 int isconsole; 98 char devinfo[256]; 99 100 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 101 printf(": %s, revision 0x%02x\n", devinfo, PCI_REVISION(pa->pa_class)); 102 103 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEGRAPHICS_IGA1682) 104 sc->sc_is2k = 0; 105 else 106 sc->sc_is2k = 1; 107 108 /* 109 * Enable the chip. This always goes through i/o space 110 * because that's the only way that is guaranteed to enable 111 * completely uninitialized card. 112 */ 113 if (igsfb_enable(pa->pa_iot) != 0) 114 return; 115 116 /* 117 * Configure memory space first since for CyberPro we use 118 * memory-mapped i/o access. Note that we are NOT mapping any 119 * of it yet. (XXX: search for memory BAR) 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 * Configure I/O space. On CyberPro use MMIO. IGS 168x 134 * doesn't have a BAR for its i/o, so we have to hardcode it. 135 */ 136 if (sc->sc_is2k) { 137 sc->sc_iot = sc->sc_memt; 138 iobase = IGS_MEM_MMIO_SELECT | sc->sc_memaddr; 139 ioflags = sc->sc_memflags; 140 } else { 141 /* feh, 1682 config denies having io space registers */ 142 sc->sc_iot = pa->pa_iot; 143 iobase = 0; 144 ioflags = 0; 145 } 146 147 /* 148 * Map I/O registers. This is done in bus glue, not in common 149 * code because on e.g. ISA bus we'd need to access registers 150 * to obtain/program linear memory location. 151 */ 152 if (bus_space_map(sc->sc_iot, 153 iobase + IGS_REG_BASE, IGS_REG_SIZE, ioflags, 154 &sc->sc_ioh) != 0) 155 { 156 printf("unable to map I/O registers\n"); 157 return; 158 } 159 160 /* TODO: Map CRTC??? This simple driver doesn't use it so far. */ 161 162 /* 163 * TODO: Map graphic coprocessor registers. not sure if this 164 * needs to be done in bus glue or can be moved to common 165 * attach code. 166 */ 167 168 isconsole = 0; 169 #ifdef __sparc__ /* XXX: this doesn't belong here */ 170 if (PCITAG_NODE(pa->pa_tag) == prom_instance_to_package(prom_stdout())) 171 isconsole = 1; 172 #endif 173 174 igsfb_common_attach(sc, isconsole); 175 } 176
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