The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/isa/vga_isa.c

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
    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 as
   12  *    the first lines of this file unmodified.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  */
   28 
   29 #include <sys/cdefs.h>
   30 __FBSDID("$FreeBSD$");
   31 
   32 #include "opt_vga.h"
   33 #include "opt_fb.h"
   34 #include "opt_syscons.h"        /* should be removed in the future, XXX */
   35 
   36 #include <sys/param.h>
   37 #include <sys/systm.h>
   38 #include <sys/kernel.h>
   39 #include <sys/malloc.h>
   40 #include <sys/module.h>
   41 #include <sys/conf.h>
   42 #include <sys/bus.h>
   43 #include <sys/fbio.h>
   44 
   45 #include <machine/bus.h>
   46 #include <machine/resource.h>
   47 
   48 #include <sys/rman.h>
   49 
   50 #include <vm/vm.h>
   51 #include <vm/pmap.h>
   52 
   53 #include <machine/md_var.h>
   54 #ifdef __i386__
   55 #include <machine/pc/bios.h>
   56 #endif
   57 
   58 #include <dev/fb/fbreg.h>
   59 #include <dev/fb/vgareg.h>
   60 
   61 #include <isa/isareg.h>
   62 #include <isa/isavar.h>
   63 
   64 #define VGA_ID          0x0009d041      /* PNP0900 */
   65 
   66 static struct isa_pnp_id vga_ids[] = {
   67         { VGA_ID,       NULL },         /* PNP0900 */
   68         { 0,            NULL },
   69 };
   70 
   71 static void
   72 vga_suspend(device_t dev)
   73 {
   74         vga_softc_t *sc;
   75         int nbytes;
   76 
   77         sc = device_get_softc(dev);
   78 
   79         /* Save the video state across the suspend. */
   80         if (sc->state_buf != NULL)
   81                 goto save_palette;
   82         nbytes = vidd_save_state(sc->adp, NULL, 0);
   83         if (nbytes <= 0)
   84                 goto save_palette;
   85         sc->state_buf = malloc(nbytes, M_TEMP, M_NOWAIT);
   86         if (sc->state_buf == NULL)
   87                 goto save_palette;
   88         if (bootverbose)
   89                 device_printf(dev, "saving %d bytes of video state\n", nbytes);
   90         if (vidd_save_state(sc->adp, sc->state_buf, nbytes) != 0) {
   91                 device_printf(dev, "failed to save state (nbytes=%d)\n",
   92                     nbytes);
   93                 free(sc->state_buf, M_TEMP);
   94                 sc->state_buf = NULL;
   95         }
   96 
   97 save_palette:
   98         /* Save the color palette across the suspend. */
   99         if (sc->pal_buf != NULL)
  100                 return;
  101         sc->pal_buf = malloc(256 * 3, M_TEMP, M_NOWAIT);
  102         if (sc->pal_buf == NULL)
  103                 return;
  104         if (bootverbose)
  105                 device_printf(dev, "saving color palette\n");
  106         if (vidd_save_palette(sc->adp, sc->pal_buf) != 0) {
  107                 device_printf(dev, "failed to save palette\n");
  108                 free(sc->pal_buf, M_TEMP);
  109                 sc->pal_buf = NULL;
  110         }
  111 }
  112 
  113 static void
  114 vga_resume(device_t dev)
  115 {
  116         vga_softc_t *sc;
  117 
  118         sc = device_get_softc(dev);
  119 
  120         if (sc->state_buf != NULL) {
  121                 if (vidd_load_state(sc->adp, sc->state_buf) != 0)
  122                         device_printf(dev, "failed to reload state\n");
  123                 free(sc->state_buf, M_TEMP);
  124                 sc->state_buf = NULL;
  125         }
  126         if (sc->pal_buf != NULL) {
  127                 if (vidd_load_palette(sc->adp, sc->pal_buf) != 0)
  128                         device_printf(dev, "failed to reload palette\n");
  129                 free(sc->pal_buf, M_TEMP);
  130                 sc->pal_buf = NULL;
  131         }
  132 }
  133 
  134 static void
  135 isavga_identify(driver_t *driver, device_t parent)
  136 {
  137         BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, VGA_DRIVER_NAME, 0);
  138 }
  139 
  140 static int
  141 isavga_probe(device_t dev)
  142 {
  143         video_adapter_t adp;
  144         int error;
  145 
  146         /* No pnp support */
  147         if (isa_get_vendorid(dev))
  148                 return (ENXIO);
  149 
  150         error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev));
  151         if (error == 0) {
  152                 device_set_desc(dev, "Generic ISA VGA");
  153                 bus_set_resource(dev, SYS_RES_IOPORT, 0,
  154                                  adp.va_io_base, adp.va_io_size);
  155                 bus_set_resource(dev, SYS_RES_MEMORY, 0,
  156                                  adp.va_mem_base, adp.va_mem_size);
  157                 isa_set_vendorid(dev, VGA_ID);
  158                 isa_set_logicalid(dev, VGA_ID);
  159 #if 0
  160                 isa_set_port(dev, adp.va_io_base);
  161                 isa_set_portsize(dev, adp.va_io_size);
  162                 isa_set_maddr(dev, adp.va_mem_base);
  163                 isa_set_msize(dev, adp.va_mem_size);
  164 #endif
  165         }
  166         return (error);
  167 }
  168 
  169 static int
  170 isavga_attach(device_t dev)
  171 {
  172         vga_softc_t *sc;
  173         int unit;
  174         int rid;
  175         int error;
  176 
  177         unit = device_get_unit(dev);
  178         sc = device_get_softc(dev);
  179 
  180         rid = 0;
  181         bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
  182                                   RF_ACTIVE | RF_SHAREABLE);
  183         rid = 0;
  184         bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
  185                                  RF_ACTIVE | RF_SHAREABLE);
  186 
  187         error = vga_attach_unit(unit, sc, device_get_flags(dev));
  188         if (error)
  189                 return (error);
  190 
  191         if (0 && bootverbose)
  192                 vidd_diag(sc->adp, bootverbose);
  193 
  194 #if 0 /* experimental */
  195         device_add_child(dev, "fb", -1);
  196         bus_generic_attach(dev);
  197 #endif
  198 
  199         return (0);
  200 }
  201 
  202 static int
  203 isavga_suspend(device_t dev)
  204 {
  205         int error;
  206 
  207         error = bus_generic_suspend(dev);
  208         if (error != 0)
  209                 return (error);
  210         vga_suspend(dev);
  211 
  212         return (error);
  213 }
  214 
  215 static int
  216 isavga_resume(device_t dev)
  217 {
  218 
  219         vga_resume(dev);
  220 
  221         return (bus_generic_resume(dev));
  222 }
  223 
  224 static device_method_t isavga_methods[] = {
  225         DEVMETHOD(device_identify,      isavga_identify),
  226         DEVMETHOD(device_probe,         isavga_probe),
  227         DEVMETHOD(device_attach,        isavga_attach),
  228         DEVMETHOD(device_suspend,       isavga_suspend),
  229         DEVMETHOD(device_resume,        isavga_resume),
  230 
  231         DEVMETHOD_END
  232 };
  233 
  234 static driver_t isavga_driver = {
  235         VGA_DRIVER_NAME,
  236         isavga_methods,
  237         sizeof(vga_softc_t),
  238 };
  239 
  240 DRIVER_MODULE(vga, isa, isavga_driver, 0, 0);
  241 
  242 static void
  243 vgapm_identify(driver_t *driver, device_t parent)
  244 {
  245 
  246         if (device_get_flags(parent) != 0)
  247                 device_add_child(parent, "vgapm", 0);
  248 }
  249 
  250 static int
  251 vgapm_probe(device_t dev)
  252 {
  253 
  254         device_set_desc(dev, "VGA suspend/resume");
  255         device_quiet(dev);
  256 
  257         return (BUS_PROBE_DEFAULT);
  258 }
  259 
  260 static int
  261 vgapm_attach(device_t dev)
  262 {
  263 
  264         bus_generic_probe(dev);
  265         bus_generic_attach(dev);
  266 
  267         return (0);
  268 }
  269 
  270 static int
  271 vgapm_suspend(device_t dev)
  272 {
  273         device_t vga_dev;
  274         int error;
  275 
  276         error = bus_generic_suspend(dev);
  277         if (error != 0)
  278                 return (error);
  279         vga_dev = devclass_get_device(devclass_find(VGA_DRIVER_NAME), 0);
  280         if (vga_dev == NULL)
  281                 return (0);
  282         vga_suspend(vga_dev);
  283 
  284         return (0);
  285 }
  286 
  287 static int
  288 vgapm_resume(device_t dev)
  289 {
  290         device_t vga_dev;
  291 
  292         vga_dev = devclass_get_device(devclass_find(VGA_DRIVER_NAME), 0);
  293         if (vga_dev != NULL)
  294                 vga_resume(vga_dev);
  295 
  296         return (bus_generic_resume(dev));
  297 }
  298 
  299 static device_method_t vgapm_methods[] = {
  300         DEVMETHOD(device_identify,      vgapm_identify),
  301         DEVMETHOD(device_probe,         vgapm_probe),
  302         DEVMETHOD(device_attach,        vgapm_attach),
  303         DEVMETHOD(device_suspend,       vgapm_suspend),
  304         DEVMETHOD(device_resume,        vgapm_resume),
  305         { 0, 0 }
  306 };
  307 
  308 static driver_t vgapm_driver = {
  309         "vgapm",
  310         vgapm_methods,
  311         0
  312 };
  313 
  314 DRIVER_MODULE(vgapm, vgapci, vgapm_driver, 0, 0);
  315 ISA_PNP_INFO(vga_ids);

Cache object: bf23d6f34f10066f7c3f21f074490e4d


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.