1 /* $NetBSD: igsfb_pci.c,v 1.8 2004/04/23 21:13:06 itojun 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 1.8 2004/04/23 21:13:06 itojun 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 57 #include <dev/ic/igsfbreg.h> 58 #include <dev/ic/igsfbvar.h> 59 #include <dev/pci/igsfb_pcivar.h> 60 61 62 static int igsfb_pci_match_by_id(pcireg_t); 63 static int igsfb_pci_map_regs(struct igsfb_devconfig *, 64 bus_space_tag_t, bus_space_tag_t, 65 pci_chipset_tag_t, 66 pcitag_t, pci_product_id_t); 67 static int igsfb_pci_is_console(pci_chipset_tag_t, pcitag_t); 68 69 static int igsfb_pci_console = 0; 70 static pcitag_t igsfb_pci_constag; 71 72 73 74 static int igsfb_pci_match(struct device *, struct cfdata *, void *); 75 static void igsfb_pci_attach(struct device *, struct device *, void *); 76 77 CFATTACH_DECL(igsfb_pci, sizeof(struct igsfb_softc), 78 igsfb_pci_match, igsfb_pci_attach, NULL, NULL); 79 80 81 static int 82 igsfb_pci_match_by_id(id) 83 pcireg_t id; 84 { 85 86 if (PCI_VENDOR(id) != PCI_VENDOR_INTEGRAPHICS) 87 return (0); 88 89 switch (PCI_PRODUCT(id)) { 90 case PCI_PRODUCT_INTEGRAPHICS_IGA1682: /* FALLTHROUGH */ 91 case PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2000: /* FALLTHROUGH */ 92 case PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2010: 93 return (1); 94 default: 95 return (0); 96 } 97 } 98 99 100 int 101 igsfb_pci_cnattach(iot, memt, pc, bus, device, function) 102 bus_space_tag_t iot, memt; 103 pci_chipset_tag_t pc; 104 int bus, device, function; 105 { 106 struct igsfb_devconfig *dc; 107 pcitag_t tag; 108 pcireg_t id; 109 int ret; 110 111 tag = pci_make_tag(pc, bus, device, function); 112 id = pci_conf_read(pc, tag, PCI_ID_REG); 113 114 if (igsfb_pci_match_by_id(id) == 0) 115 return (1); 116 117 dc = &igsfb_console_dc; 118 if (igsfb_pci_map_regs(dc, iot, memt, pc, tag, PCI_PRODUCT(id)) != 0) 119 return (1); 120 121 ret = igsfb_enable(dc->dc_iot, dc->dc_iobase, dc->dc_ioflags); 122 if (ret) 123 return (ret); 124 125 ret = igsfb_cnattach_subr(dc); 126 if (ret) 127 return (ret); 128 129 igsfb_pci_console = 1; 130 igsfb_pci_constag = tag; 131 132 return (0); 133 } 134 135 136 static int 137 igsfb_pci_is_console(pc, tag) 138 pci_chipset_tag_t pc; 139 pcitag_t tag; 140 { 141 142 return (igsfb_pci_is_console && (tag == igsfb_pci_constag)); 143 } 144 145 146 static int 147 igsfb_pci_match(parent, match, aux) 148 struct device *parent; 149 struct cfdata *match; 150 void *aux; 151 { 152 struct pci_attach_args *pa = aux; 153 154 return (igsfb_pci_match_by_id(pa->pa_id)); 155 } 156 157 158 static void 159 igsfb_pci_attach(parent, self, aux) 160 struct device *parent, *self; 161 void *aux; 162 { 163 struct igsfb_softc *sc = (struct igsfb_softc *)self; 164 struct pci_attach_args *pa = aux; 165 int isconsole; 166 char devinfo[256]; 167 168 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 169 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 170 171 172 #if defined(__sparc__) && !defined(KRUPS_FORCE_SERIAL_CONSOLE) 173 /* XXX: this doesn't belong here */ 174 if (PCITAG_NODE(pa->pa_tag) == prom_instance_to_package(prom_stdout())) 175 { 176 int b, d, f; 177 178 pci_decompose_tag(pa->pa_pc, pa->pa_tag, &b, &d, &f); 179 igsfb_pci_cnattach(pa->pa_iot, pa->pa_memt, pa->pa_pc, b,d,f); 180 } 181 #endif 182 183 isconsole = 0; 184 if (igsfb_pci_is_console(pa->pa_pc, pa->pa_tag)) { 185 sc->sc_dc = &igsfb_console_dc; 186 isconsole = 1; 187 } else { 188 sc->sc_dc = malloc(sizeof(struct igsfb_devconfig), 189 M_DEVBUF, M_NOWAIT | M_ZERO); 190 if (sc->sc_dc == NULL) 191 panic("unable to allocate igsfb_devconfig"); 192 if (igsfb_pci_map_regs(sc->sc_dc, 193 pa->pa_iot, pa->pa_memt, pa->pa_pc, 194 pa->pa_tag, PCI_PRODUCT(pa->pa_id)) != 0) 195 { 196 printf("unable to map device registers\n"); 197 free(sc->sc_dc, M_DEVBUF); 198 sc->sc_dc = NULL; 199 return; 200 } 201 202 igsfb_enable(sc->sc_dc->dc_iot, sc->sc_dc->dc_iobase, 203 sc->sc_dc->dc_ioflags); 204 } 205 206 igsfb_attach_subr(sc, isconsole); 207 } 208 209 210 /* 211 * Init memory and i/o bus space tags. Map device registers. 212 * Use memory space mapped i/o space access for i/o registers 213 * for CyberPro cards. 214 */ 215 static int 216 igsfb_pci_map_regs(dc, iot, memt, pc, tag, id) 217 struct igsfb_devconfig *dc; 218 bus_space_tag_t iot, memt; 219 pci_chipset_tag_t pc; 220 pcitag_t tag; 221 pci_product_id_t id; 222 { 223 224 dc->dc_id = id; 225 226 /* 227 * Configure memory space first since for CyberPro we use 228 * memory-mapped i/o access. Note that we are NOT mapping any 229 * of it yet. (XXX: search for memory BAR?) 230 */ 231 #define IGS_MEM_MAPREG (PCI_MAPREG_START + 0) 232 233 dc->dc_memt = memt; 234 if (pci_mapreg_info(pc, tag, 235 IGS_MEM_MAPREG, PCI_MAPREG_TYPE_MEM, 236 &dc->dc_memaddr, &dc->dc_memsz, &dc->dc_memflags) != 0) 237 { 238 printf("unable to configure memory space\n"); 239 return (1); 240 } 241 242 /* 243 * Configure I/O space. On CyberPro use MMIO. IGS 168x doesn't 244 * have a BAR for its i/o space, so we have to hardcode it. 245 */ 246 if (id >= PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2000) { 247 dc->dc_iot = dc->dc_memt; 248 dc->dc_iobase = dc->dc_memaddr | IGS_MEM_MMIO_SELECT; 249 dc->dc_ioflags = dc->dc_memflags; 250 } else { 251 dc->dc_iot = iot; 252 dc->dc_iobase = 0; 253 dc->dc_ioflags = 0; 254 } 255 256 /* 257 * Map I/O registers. This is done in bus glue, not in common 258 * code because on e.g. ISA bus we'd need to access registers 259 * to obtain/program linear memory location. 260 */ 261 if (bus_space_map(dc->dc_iot, 262 dc->dc_iobase + IGS_REG_BASE, IGS_REG_SIZE, 263 dc->dc_ioflags, 264 &dc->dc_ioh) != 0) 265 { 266 printf("unable to map I/O registers\n"); 267 return (1); 268 } 269 270 return (0); 271 } 272