1 /*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer as 10 * the first lines of this file unmodified. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD: src/sys/isa/vga_isa.c,v 1.17 2000/01/29 15:08:56 peter Exp $ 27 * $DragonFly: src/sys/bus/isa/vga_isa.c,v 1.2 2003/06/17 04:28:40 dillon Exp $ 28 */ 29 30 #include "opt_vga.h" 31 #include "opt_fb.h" 32 #include "opt_syscons.h" /* should be removed in the future, XXX */ 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/conf.h> 38 #include <sys/bus.h> 39 #include <sys/fbio.h> 40 41 #include <machine/bus.h> 42 #include <machine/resource.h> 43 44 #include <sys/rman.h> 45 46 #include <vm/vm.h> 47 #include <vm/pmap.h> 48 49 #include <machine/md_var.h> 50 #include <machine/pc/bios.h> 51 52 #include <dev/fb/fbreg.h> 53 #include <dev/fb/vgareg.h> 54 55 #include <isa/isareg.h> 56 #include <isa/isavar.h> 57 58 #define VGA_SOFTC(unit) \ 59 ((vga_softc_t *)devclass_get_softc(isavga_devclass, unit)) 60 61 static devclass_t isavga_devclass; 62 63 static int isavga_probe(device_t dev); 64 static int isavga_attach(device_t dev); 65 66 static device_method_t isavga_methods[] = { 67 DEVMETHOD(device_probe, isavga_probe), 68 DEVMETHOD(device_attach, isavga_attach), 69 70 DEVMETHOD(bus_print_child, bus_generic_print_child), 71 { 0, 0 } 72 }; 73 74 static driver_t isavga_driver = { 75 VGA_DRIVER_NAME, 76 isavga_methods, 77 sizeof(vga_softc_t), 78 }; 79 80 DRIVER_MODULE(vga, isa, isavga_driver, isavga_devclass, 0, 0); 81 82 #ifdef FB_INSTALL_CDEV 83 84 static d_open_t isavga_open; 85 static d_close_t isavga_close; 86 static d_read_t isavga_read; 87 static d_write_t isavga_write; 88 static d_ioctl_t isavga_ioctl; 89 static d_mmap_t isavga_mmap; 90 91 static struct cdevsw isavga_cdevsw = { 92 /* open */ isavga_open, 93 /* close */ isavga_close, 94 /* read */ isavga_read, 95 /* write */ isavga_write, 96 /* ioctl */ isavga_ioctl, 97 /* poll */ nopoll, 98 /* mmap */ isavga_mmap, 99 /* strategy */ nostrategy, 100 /* name */ VGA_DRIVER_NAME, 101 /* maj */ -1, 102 /* dump */ nodump, 103 /* psize */ nopsize, 104 /* flags */ 0, 105 /* bmaj */ -1 106 }; 107 108 #endif /* FB_INSTALL_CDEV */ 109 110 static int 111 isavga_probe(device_t dev) 112 { 113 video_adapter_t adp; 114 device_t bus; 115 int error; 116 117 /* No pnp support */ 118 if (isa_get_vendorid(dev)) 119 return (ENXIO); 120 121 device_set_desc(dev, "Generic ISA VGA"); 122 error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev)); 123 if (error == 0) { 124 bus = device_get_parent(dev); 125 bus_set_resource(dev, SYS_RES_IOPORT, 0, 126 adp.va_io_base, adp.va_io_size); 127 bus_set_resource(dev, SYS_RES_MEMORY, 0, 128 adp.va_mem_base, adp.va_mem_size); 129 #if 0 130 isa_set_port(dev, adp.va_io_base); 131 isa_set_portsize(dev, adp.va_io_size); 132 isa_set_maddr(dev, adp.va_mem_base); 133 isa_set_msize(dev, adp.va_mem_size); 134 #endif 135 } 136 return error; 137 } 138 139 static int 140 isavga_attach(device_t dev) 141 { 142 vga_softc_t *sc; 143 struct resource *port; 144 struct resource *mem; 145 int unit; 146 int rid; 147 int error; 148 149 unit = device_get_unit(dev); 150 sc = device_get_softc(dev); 151 152 rid = 0; 153 port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 154 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE); 155 rid = 0; 156 mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 157 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE); 158 159 error = vga_attach_unit(unit, sc, device_get_flags(dev)); 160 if (error) 161 return error; 162 163 #ifdef FB_INSTALL_CDEV 164 /* attach a virtual frame buffer device */ 165 error = fb_attach(makedev(0, VGA_MKMINOR(unit)), sc->adp, &isavga_cdevsw); 166 if (error) 167 return error; 168 #endif /* FB_INSTALL_CDEV */ 169 170 if (bootverbose) 171 (*vidsw[sc->adp->va_index]->diag)(sc->adp, bootverbose); 172 173 #if experimental 174 device_add_child(dev, "fb", -1); 175 bus_generic_attach(dev); 176 #endif 177 178 return 0; 179 } 180 181 #ifdef FB_INSTALL_CDEV 182 183 static int 184 isavga_open(dev_t dev, int flag, int mode, struct proc *p) 185 { 186 return vga_open(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, p); 187 } 188 189 static int 190 isavga_close(dev_t dev, int flag, int mode, struct proc *p) 191 { 192 return vga_close(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, p); 193 } 194 195 static int 196 isavga_read(dev_t dev, struct uio *uio, int flag) 197 { 198 return vga_read(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag); 199 } 200 201 static int 202 isavga_write(dev_t dev, struct uio *uio, int flag) 203 { 204 return vga_write(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag); 205 } 206 207 static int 208 isavga_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p) 209 { 210 return vga_ioctl(dev, VGA_SOFTC(VGA_UNIT(dev)), cmd, arg, flag, p); 211 } 212 213 static int 214 isavga_mmap(dev_t dev, vm_offset_t offset, int prot) 215 { 216 return vga_mmap(dev, VGA_SOFTC(VGA_UNIT(dev)), offset, prot); 217 } 218 219 #endif /* FB_INSTALL_CDEV */ 220