igsfb_pci.c revision 1.11
1 /* $NetBSD: igsfb_pci.c,v 1.11 2006/02/24 22:39:15 uwe Exp $ */ 2 3 /* 4 * Copyright (c) 2002, 2003 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 */ 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: igsfb_pci.c,v 1.11 2006/02/24 22:39:15 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 #ifdef __sparc__ /* XXX: this doesn't belong here */ 44 #include <machine/autoconf.h> 45 #endif 46 #include <machine/bus.h> 47 #include <machine/intr.h> 48 49 #include <dev/pci/pcivar.h> 50 #include <dev/pci/pcireg.h> 51 #include <dev/pci/pcidevs.h> 52 53 #include <dev/wscons/wsdisplayvar.h> 54 #include <dev/wscons/wsconsio.h> 55 #include <dev/rasops/rasops.h> 56 #include <dev/wscons/wsdisplay_vconsvar.h> 57 58 #include <dev/ic/igsfbreg.h> 59 #include <dev/ic/igsfbvar.h> 60 #include <dev/pci/igsfb_pcivar.h> 61 62 63 static int igsfb_pci_match_by_id(pcireg_t); 64 static int igsfb_pci_map_regs(struct igsfb_devconfig *, 65 bus_space_tag_t, bus_space_tag_t, 66 pci_chipset_tag_t, 67 pcitag_t, pci_product_id_t); 68 static int igsfb_pci_is_console(pci_chipset_tag_t, pcitag_t); 69 70 static int igsfb_pci_console = 0; 71 static pcitag_t igsfb_pci_constag; 72 73 74 75 static int igsfb_pci_match(struct device *, struct cfdata *, void *); 76 static void igsfb_pci_attach(struct device *, struct device *, void *); 77 78 CFATTACH_DECL(igsfb_pci, sizeof(struct igsfb_softc), 79 igsfb_pci_match, igsfb_pci_attach, NULL, NULL); 80 81 82 static int 83 igsfb_pci_match_by_id(id) 84 pcireg_t id; 85 { 86 87 if (PCI_VENDOR(id) != PCI_VENDOR_INTEGRAPHICS) 88 return (0); 89 90 switch (PCI_PRODUCT(id)) { 91 case PCI_PRODUCT_INTEGRAPHICS_IGA1682: /* FALLTHROUGH */ 92 case PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2000: /* FALLTHROUGH */ 93 case PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2010: 94 return (1); 95 default: 96 return (0); 97 } 98 } 99 100 101 int 102 igsfb_pci_cnattach(iot, memt, pc, bus, device, function) 103 bus_space_tag_t iot, memt; 104 pci_chipset_tag_t pc; 105 int bus, device, function; 106 { 107 struct igsfb_devconfig *dc; 108 pcitag_t tag; 109 pcireg_t id; 110 int ret; 111 112 tag = pci_make_tag(pc, bus, device, function); 113 id = pci_conf_read(pc, tag, PCI_ID_REG); 114 115 if (igsfb_pci_match_by_id(id) == 0) 116 return (1); 117 118 dc = &igsfb_console_dc; 119 if (igsfb_pci_map_regs(dc, iot, memt, pc, tag, PCI_PRODUCT(id)) != 0) 120 return (1); 121 122 ret = igsfb_enable(dc->dc_iot, dc->dc_iobase, dc->dc_ioflags); 123 if (ret) 124 return (ret); 125 126 ret = igsfb_cnattach_subr(dc); 127 if (ret) 128 return (ret); 129 130 igsfb_pci_console = 1; 131 igsfb_pci_constag = tag; 132 133 return (0); 134 } 135 136 137 static int 138 igsfb_pci_is_console(pc, tag) 139 pci_chipset_tag_t pc; 140 pcitag_t tag; 141 { 142 143 return (igsfb_pci_is_console && (tag == igsfb_pci_constag)); 144 } 145 146 147 static int 148 igsfb_pci_match(parent, match, aux) 149 struct device *parent; 150 struct cfdata *match; 151 void *aux; 152 { 153 struct pci_attach_args *pa = aux; 154 155 return (igsfb_pci_match_by_id(pa->pa_id)); 156 } 157 158 159 static void 160 igsfb_pci_attach(parent, self, aux) 161 struct device *parent, *self; 162 void *aux; 163 { 164 struct igsfb_softc *sc = (struct igsfb_softc *)self; 165 struct pci_attach_args *pa = aux; 166 int isconsole; 167 char devinfo[256]; 168 169 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 170 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 171 172 173 #if defined(__sparc__) && !defined(KRUPS_FORCE_SERIAL_CONSOLE) 174 /* XXX: this doesn't belong here */ 175 if (PCITAG_NODE(pa->pa_tag) == prom_instance_to_package(prom_stdout())) 176 { 177 int b, d, f; 178 179 pci_decompose_tag(pa->pa_pc, pa->pa_tag, &b, &d, &f); 180 igsfb_pci_cnattach(pa->pa_iot, pa->pa_memt, pa->pa_pc, b,d,f); 181 } 182 #endif 183 184 isconsole = 0; 185 if (igsfb_pci_is_console(pa->pa_pc, pa->pa_tag)) { 186 sc->sc_dc = &igsfb_console_dc; 187 isconsole = 1; 188 } else { 189 sc->sc_dc = malloc(sizeof(struct igsfb_devconfig), 190 M_DEVBUF, M_NOWAIT | M_ZERO); 191 if (sc->sc_dc == NULL) 192 panic("unable to allocate igsfb_devconfig"); 193 if (igsfb_pci_map_regs(sc->sc_dc, 194 pa->pa_iot, pa->pa_memt, pa->pa_pc, 195 pa->pa_tag, PCI_PRODUCT(pa->pa_id)) != 0) 196 { 197 printf("unable to map device registers\n"); 198 free(sc->sc_dc, M_DEVBUF); 199 sc->sc_dc = NULL; 200 return; 201 } 202 203 igsfb_enable(sc->sc_dc->dc_iot, sc->sc_dc->dc_iobase, 204 sc->sc_dc->dc_ioflags); 205 } 206 207 igsfb_attach_subr(sc, isconsole); 208 } 209 210 211 /* 212 * Init memory and i/o bus space tags. Map device registers. 213 * Use memory space mapped i/o space access for i/o registers 214 * for CyberPro cards. 215 */ 216 static int 217 igsfb_pci_map_regs(dc, iot, memt, pc, tag, id) 218 struct igsfb_devconfig *dc; 219 bus_space_tag_t iot, memt; 220 pci_chipset_tag_t pc; 221 pcitag_t tag; 222 pci_product_id_t id; 223 { 224 225 dc->dc_id = id; 226 227 /* 228 * Configure memory space first since for CyberPro we use 229 * memory-mapped i/o access. Note that we are NOT mapping any 230 * of it yet. (XXX: search for memory BAR?) 231 */ 232 #define IGS_MEM_MAPREG (PCI_MAPREG_START + 0) 233 234 dc->dc_memt = memt; 235 if (pci_mapreg_info(pc, tag, 236 IGS_MEM_MAPREG, PCI_MAPREG_TYPE_MEM, 237 &dc->dc_memaddr, &dc->dc_memsz, &dc->dc_memflags) != 0) 238 { 239 printf("unable to configure memory space\n"); 240 return (1); 241 } 242 243 /* 244 * Configure I/O space. On CyberPro use MMIO. IGS 168x doesn't 245 * have a BAR for its i/o space, so we have to hardcode it. 246 */ 247 if (id >= PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2000) { 248 dc->dc_iot = dc->dc_memt; 249 dc->dc_iobase = dc->dc_memaddr | IGS_MEM_MMIO_SELECT; 250 dc->dc_ioflags = dc->dc_memflags; 251 } else { 252 dc->dc_iot = iot; 253 dc->dc_iobase = 0; 254 dc->dc_ioflags = 0; 255 } 256 257 /* 258 * Map I/O registers. This is done in bus glue, not in common 259 * code because on e.g. ISA bus we'd need to access registers 260 * to obtain/program linear memory location. 261 */ 262 if (bus_space_map(dc->dc_iot, 263 dc->dc_iobase + IGS_REG_BASE, IGS_REG_SIZE, 264 dc->dc_ioflags, 265 &dc->dc_ioh) != 0) 266 { 267 printf("unable to map I/O registers\n"); 268 return (1); 269 } 270 271 return (0); 272 } 273
Indexes created Tue Sep 23 07:09:52 GMT 2025