| 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 1.13 2006/10/25 20:55:51 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/malloc.h> |
| 38 | #include <sys/conf.h> |
| 39 | #include <sys/device.h> |
| 40 | #include <sys/bus.h> |
| 41 | #include <sys/fbio.h> |
| 42 | #include <sys/rman.h> |
| 43 | |
| 44 | #include <vm/vm.h> |
| 45 | #include <vm/pmap.h> |
| 46 | |
| 47 | #include <machine/md_var.h> |
| 48 | #include <machine/pc/bios.h> |
| 49 | |
| 50 | #include <dev/video/fb/fbreg.h> |
| 51 | #include <dev/video/fb/vgareg.h> |
| 52 | |
| 53 | #include "isareg.h" |
| 54 | #include "isavar.h" |
| 55 | |
| 56 | #define VGA_SOFTC(unit) \ |
| 57 | ((vga_softc_t *)devclass_get_softc(isavga_devclass, unit)) |
| 58 | |
| 59 | static devclass_t isavga_devclass; |
| 60 | |
| 61 | static int isavga_probe(device_t dev); |
| 62 | static int isavga_attach(device_t dev); |
| 63 | static int isavga_suspend(device_t dev); |
| 64 | static int isavga_resume(device_t dev); |
| 65 | |
| 66 | static device_method_t isavga_methods[] = { |
| 67 | DEVMETHOD(device_probe, isavga_probe), |
| 68 | DEVMETHOD(device_attach, isavga_attach), |
| 69 | DEVMETHOD(device_suspend, isavga_suspend), |
| 70 | DEVMETHOD(device_resume, isavga_resume), |
| 71 | |
| 72 | DEVMETHOD(bus_print_child, bus_generic_print_child), |
| 73 | { 0, 0 } |
| 74 | }; |
| 75 | |
| 76 | static driver_t isavga_driver = { |
| 77 | VGA_DRIVER_NAME, |
| 78 | isavga_methods, |
| 79 | sizeof(vga_softc_t), |
| 80 | }; |
| 81 | |
| 82 | DRIVER_MODULE(vga, isa, isavga_driver, isavga_devclass, 0, 0); |
| 83 | |
| 84 | #ifdef FB_INSTALL_CDEV |
| 85 | |
| 86 | static d_open_t isavga_open; |
| 87 | static d_close_t isavga_close; |
| 88 | static d_read_t isavga_read; |
| 89 | static d_write_t isavga_write; |
| 90 | static d_ioctl_t isavga_ioctl; |
| 91 | static d_mmap_t isavga_mmap; |
| 92 | |
| 93 | static struct dev_ops isavga_ops = { |
| 94 | { VGA_DRIVER_NAME, -1, 0 }, |
| 95 | .d_open = isavga_open, |
| 96 | .d_close = isavga_close, |
| 97 | .d_read = isavga_read, |
| 98 | .d_write = isavga_write, |
| 99 | .d_ioctl = isavga_ioctl, |
| 100 | .d_mmap = isavga_mmap, |
| 101 | }; |
| 102 | |
| 103 | #endif /* FB_INSTALL_CDEV */ |
| 104 | |
| 105 | static int |
| 106 | isavga_probe(device_t dev) |
| 107 | { |
| 108 | video_adapter_t adp; |
| 109 | device_t bus; |
| 110 | int error; |
| 111 | |
| 112 | /* No pnp support */ |
| 113 | if (isa_get_vendorid(dev)) |
| 114 | return (ENXIO); |
| 115 | |
| 116 | device_set_desc(dev, "Generic ISA VGA"); |
| 117 | error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev)); |
| 118 | if (error == 0) { |
| 119 | bus = device_get_parent(dev); |
| 120 | bus_set_resource(dev, SYS_RES_IOPORT, 0, |
| 121 | adp.va_io_base, adp.va_io_size); |
| 122 | bus_set_resource(dev, SYS_RES_MEMORY, 0, |
| 123 | adp.va_mem_base, adp.va_mem_size); |
| 124 | #if 0 |
| 125 | isa_set_port(dev, adp.va_io_base); |
| 126 | isa_set_portsize(dev, adp.va_io_size); |
| 127 | isa_set_maddr(dev, adp.va_mem_base); |
| 128 | isa_set_msize(dev, adp.va_mem_size); |
| 129 | #endif |
| 130 | } |
| 131 | return error; |
| 132 | } |
| 133 | |
| 134 | static int |
| 135 | isavga_attach(device_t dev) |
| 136 | { |
| 137 | vga_softc_t *sc; |
| 138 | struct resource *port; |
| 139 | struct resource *mem; |
| 140 | int unit; |
| 141 | int rid; |
| 142 | int error; |
| 143 | |
| 144 | unit = device_get_unit(dev); |
| 145 | sc = device_get_softc(dev); |
| 146 | |
| 147 | rid = 0; |
| 148 | port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, |
| 149 | 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE); |
| 150 | rid = 0; |
| 151 | mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, |
| 152 | 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE); |
| 153 | |
| 154 | error = vga_attach_unit(unit, sc, device_get_flags(dev)); |
| 155 | if (error) |
| 156 | return error; |
| 157 | |
| 158 | #ifdef FB_INSTALL_CDEV |
| 159 | /* attach a virtual frame buffer device */ |
| 160 | dev_ops_add(&isavga_ops, VGA_MKMINOR(-1), VGA_MKMINOR(unit)); |
| 161 | sc->devt = make_dev(&isavga_ops, VGA_MKMINOR(unit), 0, 0, 02660, "vga%x", VGA_MKMINOR(unit)); |
| 162 | reference_dev(sc->devt); |
| 163 | error = fb_attach(sc->devt, sc->adp); |
| 164 | if (error) |
| 165 | return error; |
| 166 | #endif /* FB_INSTALL_CDEV */ |
| 167 | |
| 168 | if (bootverbose) |
| 169 | (*vidsw[sc->adp->va_index]->diag)(sc->adp, bootverbose); |
| 170 | |
| 171 | #if experimental |
| 172 | device_add_child(dev, "fb", -1); |
| 173 | bus_generic_attach(dev); |
| 174 | #endif |
| 175 | |
| 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | static int |
| 180 | isavga_suspend(device_t dev) |
| 181 | { |
| 182 | vga_softc_t *sc; |
| 183 | int err, nbytes; |
| 184 | |
| 185 | sc = device_get_softc(dev); |
| 186 | err = bus_generic_suspend(dev); |
| 187 | if (err) |
| 188 | return (err); |
| 189 | |
| 190 | /* Save the video state across the suspend. */ |
| 191 | if (sc->state_buf != NULL) { |
| 192 | kfree(sc->state_buf, M_TEMP); |
| 193 | sc->state_buf = NULL; |
| 194 | } |
| 195 | nbytes = (*vidsw[sc->adp->va_index]->save_state)(sc->adp, NULL, 0); |
| 196 | if (nbytes <= 0) |
| 197 | return (0); |
| 198 | sc->state_buf = kmalloc(nbytes, M_TEMP, M_NOWAIT | M_ZERO); |
| 199 | if (sc->state_buf == NULL) |
| 200 | return (0); |
| 201 | if (bootverbose) |
| 202 | device_printf(dev, "saving %d bytes of video state\n", nbytes); |
| 203 | if ((*vidsw[sc->adp->va_index]->save_state)(sc->adp, sc->state_buf, |
| 204 | nbytes) != 0) { |
| 205 | device_printf(dev, "failed to save state (nbytes=%d)\n", |
| 206 | nbytes); |
| 207 | kfree(sc->state_buf, M_TEMP); |
| 208 | sc->state_buf = NULL; |
| 209 | } |
| 210 | return (0); |
| 211 | } |
| 212 | |
| 213 | static int |
| 214 | isavga_resume(device_t dev) |
| 215 | { |
| 216 | vga_softc_t *sc; |
| 217 | |
| 218 | sc = device_get_softc(dev); |
| 219 | if (sc->state_buf != NULL) { |
| 220 | if ((*vidsw[sc->adp->va_index]->load_state)(sc->adp, |
| 221 | sc->state_buf) != 0) |
| 222 | device_printf(dev, "failed to reload state\n"); |
| 223 | kfree(sc->state_buf, M_TEMP); |
| 224 | sc->state_buf = NULL; |
| 225 | } |
| 226 | |
| 227 | bus_generic_resume(dev); |
| 228 | return 0; |
| 229 | } |
| 230 | |
| 231 | #ifdef FB_INSTALL_CDEV |
| 232 | |
| 233 | static int |
| 234 | isavga_open(struct dev_open_args *ap) |
| 235 | { |
| 236 | cdev_t dev = ap->a_head.a_dev; |
| 237 | |
| 238 | return vga_open(dev, VGA_SOFTC(VGA_UNIT(dev)), ap->a_oflags, |
| 239 | ap->a_devtype, ap->a_cred); |
| 240 | } |
| 241 | |
| 242 | static int |
| 243 | isavga_close(struct dev_close_args *ap) |
| 244 | { |
| 245 | cdev_t dev = ap->a_head.a_dev; |
| 246 | |
| 247 | return vga_close(dev, VGA_SOFTC(VGA_UNIT(dev)), |
| 248 | ap->a_fflag, ap->a_devtype); |
| 249 | } |
| 250 | |
| 251 | static int |
| 252 | isavga_read(struct dev_read_args *ap) |
| 253 | { |
| 254 | cdev_t dev = ap->a_head.a_dev; |
| 255 | |
| 256 | return vga_read(dev, VGA_SOFTC(VGA_UNIT(dev)), ap->a_uio, ap->a_ioflag); |
| 257 | } |
| 258 | |
| 259 | static int |
| 260 | isavga_write(struct dev_write_args *ap) |
| 261 | { |
| 262 | cdev_t dev = ap->a_head.a_dev; |
| 263 | |
| 264 | return vga_write(dev, VGA_SOFTC(VGA_UNIT(dev)), ap->a_uio, ap->a_ioflag); |
| 265 | } |
| 266 | |
| 267 | static int |
| 268 | isavga_ioctl(struct dev_ioctl_args *ap) |
| 269 | { |
| 270 | cdev_t dev = ap->a_head.a_dev; |
| 271 | |
| 272 | return vga_ioctl(dev, VGA_SOFTC(VGA_UNIT(dev)), ap->a_cmd, ap->a_data, ap->a_fflag, ap->a_cred); |
| 273 | } |
| 274 | |
| 275 | static int |
| 276 | isavga_mmap(struct dev_mmap_args *ap) |
| 277 | { |
| 278 | cdev_t dev = ap->a_head.a_dev; |
| 279 | |
| 280 | ap->a_result = vga_mmap(dev, VGA_SOFTC(VGA_UNIT(dev)), ap->a_offset, ap->a_nprot); |
| 281 | return(0); |
| 282 | } |
| 283 | |
| 284 | #endif /* FB_INSTALL_CDEV */ |