vga_isa.c revision 56836
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: head/sys/isa/vga_isa.c 56836 2000-01-29 15:08:56Z peter $ 27 */ 28 29#include "opt_vga.h" 30#include "opt_fb.h" 31#include "opt_syscons.h" /* should be removed in the future, XXX */ 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/kernel.h> 36#include <sys/conf.h> 37#include <sys/bus.h> 38#include <sys/fbio.h> 39 40#include <machine/bus.h> 41#include <machine/resource.h> 42 43#include <sys/rman.h> 44 45#include <vm/vm.h> 46#include <vm/pmap.h> 47 48#include <machine/md_var.h> 49#include <machine/pc/bios.h> 50 51#include <dev/fb/fbreg.h> 52#include <dev/fb/vgareg.h> 53 54#include <isa/isareg.h> 55#include <isa/isavar.h> 56 57#define VGA_SOFTC(unit) \ 58 ((vga_softc_t *)devclass_get_softc(isavga_devclass, unit)) 59 60static devclass_t isavga_devclass; 61 62static int isavga_probe(device_t dev); 63static int isavga_attach(device_t dev); 64 65static device_method_t isavga_methods[] = { 66 DEVMETHOD(device_probe, isavga_probe), 67 DEVMETHOD(device_attach, isavga_attach), 68 69 DEVMETHOD(bus_print_child, bus_generic_print_child), 70 { 0, 0 } 71}; 72 73static driver_t isavga_driver = { 74 VGA_DRIVER_NAME, 75 isavga_methods, 76 sizeof(vga_softc_t), 77}; 78 79DRIVER_MODULE(vga, isa, isavga_driver, isavga_devclass, 0, 0); 80 81#ifdef FB_INSTALL_CDEV 82 83static d_open_t isavga_open; 84static d_close_t isavga_close; 85static d_read_t isavga_read; 86static d_write_t isavga_write; 87static d_ioctl_t isavga_ioctl; 88static d_mmap_t isavga_mmap; 89 90static struct cdevsw isavga_cdevsw = { 91 /* open */ isavga_open, 92 /* close */ isavga_close, 93 /* read */ isavga_read, 94 /* write */ isavga_write, 95 /* ioctl */ isavga_ioctl, 96 /* poll */ nopoll, 97 /* mmap */ isavga_mmap, 98 /* strategy */ nostrategy, 99 /* name */ VGA_DRIVER_NAME, 100 /* maj */ -1, 101 /* dump */ nodump, 102 /* psize */ nopsize, 103 /* flags */ 0, 104 /* bmaj */ -1 105}; 106 107#endif /* FB_INSTALL_CDEV */ 108 109static int 110isavga_probe(device_t dev) 111{ 112 video_adapter_t adp; 113 device_t bus; 114 int error; 115 116 /* No pnp support */ 117 if (isa_get_vendorid(dev)) 118 return (ENXIO); 119 120 device_set_desc(dev, "Generic ISA VGA"); 121 error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev)); 122 if (error == 0) { 123 bus = device_get_parent(dev); 124 bus_set_resource(dev, SYS_RES_IOPORT, 0, 125 adp.va_io_base, adp.va_io_size); 126 bus_set_resource(dev, SYS_RES_MEMORY, 0, 127 adp.va_mem_base, adp.va_mem_size); 128#if 0 129 isa_set_port(dev, adp.va_io_base); 130 isa_set_portsize(dev, adp.va_io_size); 131 isa_set_maddr(dev, adp.va_mem_base); 132 isa_set_msize(dev, adp.va_mem_size); 133#endif 134 } 135 return error; 136} 137 138static int 139isavga_attach(device_t dev) 140{ 141 vga_softc_t *sc; 142 struct resource *port; 143 struct resource *mem; 144 int unit; 145 int rid; 146 int error; 147 148 unit = device_get_unit(dev); 149 sc = device_get_softc(dev); 150 151 rid = 0; 152 port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 153 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE); 154 rid = 0; 155 mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 156 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE); 157 158 error = vga_attach_unit(unit, sc, device_get_flags(dev)); 159 if (error) 160 return error; 161 162#ifdef FB_INSTALL_CDEV 163 /* attach a virtual frame buffer device */ 164 error = fb_attach(makedev(0, VGA_MKMINOR(unit)), sc->adp, &isavga_cdevsw); 165 if (error) 166 return error; 167#endif /* FB_INSTALL_CDEV */ 168 169 if (bootverbose) 170 (*vidsw[sc->adp->va_index]->diag)(sc->adp, bootverbose); 171 172#if experimental 173 device_add_child(dev, "fb", -1); 174 bus_generic_attach(dev); 175#endif 176 177 return 0; 178} 179 180#ifdef FB_INSTALL_CDEV 181 182static int 183isavga_open(dev_t dev, int flag, int mode, struct proc *p) 184{ 185 return vga_open(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, p); 186} 187 188static int 189isavga_close(dev_t dev, int flag, int mode, struct proc *p) 190{ 191 return vga_close(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, p); 192} 193 194static int 195isavga_read(dev_t dev, struct uio *uio, int flag) 196{ 197 return vga_read(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag); 198} 199 200static int 201isavga_write(dev_t dev, struct uio *uio, int flag) 202{ 203 return vga_write(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag); 204} 205 206static int 207isavga_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p) 208{ 209 return vga_ioctl(dev, VGA_SOFTC(VGA_UNIT(dev)), cmd, arg, flag, p); 210} 211 212static int 213isavga_mmap(dev_t dev, vm_offset_t offset, int prot) 214{ 215 return vga_mmap(dev, VGA_SOFTC(VGA_UNIT(dev)), offset, prot); 216} 217 218#endif /* FB_INSTALL_CDEV */ 219