igsfb_ofbus.c revision 1.4
1 /* $NetBSD: igsfb_ofbus.c,v 1.4 2007/06/03 01:52:54 uwe Exp $ */ 2 3 /* 4 * Copyright (c) 2006 Michael Lorenz 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 * ofbus attachment for Valeriy E. Ushakov's igsfb driver 33 */ 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: igsfb_ofbus.c,v 1.4 2007/06/03 01:52:54 uwe Exp $"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/device.h> 42 #include <sys/malloc.h> 43 #include <sys/buf.h> 44 45 #include <machine/bus.h> 46 #include <machine/intr.h> 47 #include <machine/ofw.h> 48 49 #include <dev/isa/isavar.h> 50 51 #include <dev/wscons/wsdisplayvar.h> 52 #include <dev/wscons/wsconsio.h> 53 #include <dev/rasops/rasops.h> 54 #include <dev/wscons/wsdisplay_vconsvar.h> 55 #include <dev/ofw/openfirm.h> 56 57 #include <dev/ic/igsfbreg.h> 58 #include <dev/ic/igsfbvar.h> 59 #include <shark/ofw/igsfb_ofbusvar.h> 60 61 static int igsfb_ofbus_is_console(int); 62 63 static int igsfb_ofbus_console = 0; 64 static int igsfb_ofbus_phandle = 0; 65 66 67 68 static int igsfb_ofbus_match(struct device *, struct cfdata *, void *); 69 static void igsfb_ofbus_attach(struct device *, struct device *, void *); 70 static int igsfb_setup_dc(struct igsfb_devconfig *); 71 72 CFATTACH_DECL(igsfb_ofbus, sizeof(struct igsfb_softc), 73 igsfb_ofbus_match, igsfb_ofbus_attach, NULL, NULL); 74 75 static const char const *compat_strings[] = { "igs,cyperpro2010", NULL }; 76 77 vaddr_t igsfb_mem_vaddr = 0, igsfb_mmio_vaddr = 0; 78 paddr_t igsfb_mem_paddr; 79 struct bus_space igsfb_memt, igsfb_iot; 80 81 extern int console_ihandle; 82 83 int 84 igsfb_ofbus_cnattach(bus_space_tag_t iot, bus_space_tag_t memt) 85 { 86 struct igsfb_devconfig *dc; 87 int ret; 88 int chosen_phandle, igs_node; 89 int stdout_ihandle, stdout_phandle; 90 uint32_t regs[16]; 91 92 stdout_phandle = 0; 93 94 /* first find out if there's a CyberPro at all in this machine */ 95 igs_node = OF_finddevice("/vlbus/display"); 96 if (igs_node == -1) 97 return ENXIO; 98 if (of_compatible(igs_node, compat_strings) < 0) 99 return ENXIO; 100 101 /* 102 * now we know there's a CyberPro in this machine so map it into 103 * kernel space, even if it's not the console 104 */ 105 if (OF_getprop(igs_node, "reg", regs, sizeof(regs)) <= 0) 106 return ENXIO; 107 108 igsfb_mem_paddr = be32toh(regs[13]); 109 /* 4MB VRAM */ 110 igsfb_mem_vaddr = ofw_map(igsfb_mem_paddr, 0x00400000, 0); 111 /* MMIO registers */ 112 igsfb_mmio_vaddr = ofw_map(igsfb_mem_paddr + IGS_MEM_MMIO_SELECT, 113 0x00100000, 0); 114 115 memcpy(&igsfb_memt, memt, sizeof(struct bus_space)); 116 igsfb_memt.bs_cookie = (void *)igsfb_mem_vaddr; 117 memcpy(&igsfb_iot, memt, sizeof(struct bus_space)); 118 igsfb_iot.bs_cookie = (void *)igsfb_mmio_vaddr; 119 120 /* 121 * check if the firmware output device is indeed the CyberPro 122 */ 123 if ((chosen_phandle = OF_finddevice("/chosen")) == -1 || 124 OF_getprop(chosen_phandle, "stdout", &stdout_ihandle, 125 sizeof(stdout_ihandle)) != sizeof(stdout_ihandle)) { 126 return ENXIO; 127 } 128 stdout_ihandle = of_decode_int((void *)&stdout_ihandle); 129 stdout_phandle = OF_instance_to_package(stdout_ihandle); 130 131 if (stdout_phandle != igs_node) 132 return ENXIO; 133 134 /* ok, now setup and attach the console */ 135 dc = &igsfb_console_dc; 136 ret = igsfb_setup_dc(dc); 137 if (ret) 138 return ret; 139 140 ret = igsfb_cnattach_subr(dc); 141 if (ret) 142 return ret; 143 144 igsfb_ofbus_console = 1; 145 igsfb_ofbus_phandle = stdout_phandle; 146 console_ihandle = stdout_ihandle; 147 return 0; 148 } 149 150 static int 151 igsfb_setup_dc(struct igsfb_devconfig *dc) 152 { 153 int ret; 154 155 dc->dc_id = 0x2010; 156 dc->dc_memt = &igsfb_memt; 157 dc->dc_memaddr = 0; 158 dc->dc_memsz= 0x00400000; 159 dc->dc_memflags = 0; 160 161 dc->dc_iot = &igsfb_iot; 162 dc->dc_iobase = 0; 163 dc->dc_ioflags = 0; 164 165 if (bus_space_map(dc->dc_iot, 166 dc->dc_iobase + IGS_REG_BASE, IGS_REG_SIZE, 167 dc->dc_ioflags, 168 &dc->dc_ioh) != 0) 169 { 170 printf("unable to map I/O registers\n"); 171 return 1; 172 } 173 ret = igsfb_enable(dc->dc_iot, dc->dc_iobase, dc->dc_ioflags); 174 if (ret) 175 return ret; 176 return 0; 177 } 178 179 static int 180 igsfb_ofbus_is_console(int phandle) 181 { 182 183 return igsfb_ofbus_console && (phandle == igsfb_ofbus_phandle); 184 } 185 186 187 static int 188 igsfb_ofbus_match(struct device *parent, struct cfdata *match, void *aux) 189 { 190 struct ofbus_attach_args *oba = aux; 191 192 if (of_compatible(oba->oba_phandle, compat_strings) < 0) 193 return 0; 194 195 return 10; /* beat vga etc. */ 196 } 197 198 199 static void 200 igsfb_ofbus_attach(struct device *parent, struct device *self, void *aux) 201 { 202 struct igsfb_softc *sc = (struct igsfb_softc *)self; 203 struct ofbus_attach_args *oba = aux; 204 uint32_t regs[16]; 205 int isconsole, ret; 206 207 if (igsfb_ofbus_is_console(oba->oba_phandle)) { 208 isconsole = 1; 209 sc->sc_dc = &igsfb_console_dc; 210 } else { 211 isconsole = 0; 212 sc->sc_dc = malloc(sizeof(struct igsfb_devconfig), 213 M_DEVBUF, M_NOWAIT | M_ZERO); 214 if (sc->sc_dc == NULL) 215 panic("unable to allocate igsfb_devconfig"); 216 if (OF_getprop(oba->oba_phandle, "reg", 217 regs, sizeof(regs)) <= 0) 218 { 219 printf(": unable to read 'reg' property\n"); 220 return; 221 } 222 ret = igsfb_setup_dc(sc->sc_dc); 223 if (ret) 224 return; 225 } 226 printf(": IGS CyberPro 2010 at 0x%08x\n", (uint32_t)igsfb_mem_paddr); 227 228 igsfb_attach_subr(sc, isconsole); 229 } 230
Indexes created Tue Sep 30 20:09:53 GMT 2025