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 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 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/module.h> 38 #include <sys/conf.h> 39 #include <sys/bus.h> 40 #include <sys/fbio.h> 41 42 #include <machine/bus.h> 43 #include <machine/resource.h> 44 45 #include <sys/rman.h> 46 47 #include <vm/vm.h> 48 #include <vm/pmap.h> 49 50 #include <machine/md_var.h> 51 #ifdef __i386__ 52 #include <machine/pc/bios.h> 53 #endif 54 55 #include <dev/fb/fbreg.h> 56 #include <dev/fb/vgareg.h> 57 58 #include <isa/isareg.h> 59 #include <isa/isavar.h> 60 61 #define VGA_SOFTC(unit) \ 62 ((vga_softc_t *)devclass_get_softc(isavga_devclass, unit)) 63 64 static devclass_t isavga_devclass; 65 66 #ifdef FB_INSTALL_CDEV 67 68 static d_open_t isavga_open; 69 static d_close_t isavga_close; 70 static d_read_t isavga_read; 71 static d_write_t isavga_write; 72 static d_ioctl_t isavga_ioctl; 73 static d_mmap_t isavga_mmap; 74 75 static struct cdevsw isavga_cdevsw = { 76 .d_version = D_VERSION, 77 .d_flags = D_NEEDGIANT, 78 .d_open = isavga_open, 79 .d_close = isavga_close, 80 .d_read = isavga_read, 81 .d_write = isavga_write, 82 .d_ioctl = isavga_ioctl, 83 .d_mmap = isavga_mmap, 84 .d_name = VGA_DRIVER_NAME, 85 .d_maj = -1, 86 }; 87 88 #endif /* FB_INSTALL_CDEV */ 89 90 static void 91 isavga_identify(driver_t *driver, device_t parent) 92 { 93 BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, VGA_DRIVER_NAME, 0); 94 } 95 96 static int 97 isavga_probe(device_t dev) 98 { 99 video_adapter_t adp; 100 int error; 101 102 /* No pnp support */ 103 if (isa_get_vendorid(dev)) 104 return (ENXIO); 105 106 device_set_desc(dev, "Generic ISA VGA"); 107 error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev)); 108 if (error == 0) { 109 bus_set_resource(dev, SYS_RES_IOPORT, 0, 110 adp.va_io_base, adp.va_io_size); 111 bus_set_resource(dev, SYS_RES_MEMORY, 0, 112 adp.va_mem_base, adp.va_mem_size); 113 #if 0 114 isa_set_port(dev, adp.va_io_base); 115 isa_set_portsize(dev, adp.va_io_size); 116 isa_set_maddr(dev, adp.va_mem_base); 117 isa_set_msize(dev, adp.va_mem_size); 118 #endif 119 } 120 return error; 121 } 122 123 static int 124 isavga_attach(device_t dev) 125 { 126 vga_softc_t *sc; 127 int unit; 128 int rid; 129 int error; 130 131 unit = device_get_unit(dev); 132 sc = device_get_softc(dev); 133 134 rid = 0; 135 bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 136 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE); 137 rid = 0; 138 bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 139 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE); 140 141 error = vga_attach_unit(unit, sc, device_get_flags(dev)); 142 if (error) 143 return error; 144 145 #ifdef FB_INSTALL_CDEV 146 /* attach a virtual frame buffer device */ 147 error = fb_attach(VGA_MKMINOR(unit), sc->adp, &isavga_cdevsw); 148 if (error) 149 return error; 150 #endif /* FB_INSTALL_CDEV */ 151 152 if (bootverbose) 153 (*vidsw[sc->adp->va_index]->diag)(sc->adp, bootverbose); 154 155 #if experimental 156 device_add_child(dev, "fb", -1); 157 bus_generic_attach(dev); 158 #endif 159 160 return 0; 161 } 162 163 #ifdef FB_INSTALL_CDEV 164 165 static int 166 isavga_open(struct cdev *dev, int flag, int mode, struct thread *td) 167 { 168 return vga_open(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td); 169 } 170 171 static int 172 isavga_close(struct cdev *dev, int flag, int mode, struct thread *td) 173 { 174 return vga_close(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td); 175 } 176 177 static int 178 isavga_read(struct cdev *dev, struct uio *uio, int flag) 179 { 180 return vga_read(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag); 181 } 182 183 static int 184 isavga_write(struct cdev *dev, struct uio *uio, int flag) 185 { 186 return vga_write(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag); 187 } 188 189 static int 190 isavga_ioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td) 191 { 192 return vga_ioctl(dev, VGA_SOFTC(VGA_UNIT(dev)), cmd, arg, flag, td); 193 } 194 195 static int 196 isavga_mmap(struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int prot) 197 { 198 return vga_mmap(dev, VGA_SOFTC(VGA_UNIT(dev)), offset, paddr, prot); 199 } 200 201 #endif /* FB_INSTALL_CDEV */ 202 203 static device_method_t isavga_methods[] = { 204 DEVMETHOD(device_identify, isavga_identify), 205 DEVMETHOD(device_probe, isavga_probe), 206 DEVMETHOD(device_attach, isavga_attach), 207 208 DEVMETHOD(bus_print_child, bus_generic_print_child), 209 { 0, 0 } 210 }; 211 212 static driver_t isavga_driver = { 213 VGA_DRIVER_NAME, 214 isavga_methods, 215 sizeof(vga_softc_t), 216 }; 217 218 DRIVER_MODULE(vga, isa, isavga_driver, isavga_devclass, 0, 0); 219