183 lines
4.7 KiB
C
183 lines
4.7 KiB
C
/* $Id: genkgi_visual.c,v 1.3 1999/08/21 22:46:13 jtaylor Exp $
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******************************************************************************
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genkgi_visual.c: visual handling for the generic KGI helper
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Copyright (C) 1999 Jon Taylor [taylorj@ggi-project.org]
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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******************************************************************************
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*/
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#include <ggi/internal/ggi-dl.h>
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#include <ggi/mesa/ggimesa_int.h>
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#include <ggi/mesa/display_fbdev.h>
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#include "genkgi.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#ifdef HAVE_SYS_VT_H
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#include <sys/vt.h>
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#else
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#include <linux/vt.h>
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#endif
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#ifdef HAVE_LINUX_KDEV_T_H
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#include <linux/kdev_t.h>
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#endif
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#include <linux/tty.h>
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//static int refcount = 0;
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//static int vtnum;
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//static void *_ggi_fbdev_lock = NULL;
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//#ifdef FBIOGET_CON2FBMAP
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//static struct fb_con2fbmap origconmap;
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//#endif
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//#define MAX_DEV_LEN 63
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#define DEFAULT_FBNUM 0
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static char accel_prefix[] = "tgt-fbdev-kgicon-";
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#define PREFIX_LEN (sizeof(accel_prefix))
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typedef struct {
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int async;
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char *str;
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} accel_info;
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static accel_info accel_strings[] =
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{
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{ 0, "savage4" }, /* S3 Savage4 */
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};
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#define NUM_ACCELS (sizeof(accel_strings)/sizeof(accel_info))
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/* FIXME: These should be defined in the makefile system */
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#define CONF_FILE "/usr/local/etc/ggi/mesa/targets/genkgi.conf"
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void *_configHandle;
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char confstub[512] = CONF_FILE;
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char *conffile = confstub;
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static int changed(ggi_visual_t vis, int whatchanged)
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{
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gl_ggiDEBUG("Entered ggimesa_genkgi_changed\n");
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switch (whatchanged)
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{
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case GGI_CHG_APILIST:
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{
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char api[256];
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char args[256];
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int i;
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const char *fname;
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ggi_dlhandle *lib;
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for (i = 0; ggiGetAPI(vis, i, api, args) == 0; i++)
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{
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strcat(api, "-mesa");
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gl_ggiDEBUG("ggimesa_genkgi_changed: api=%s, i=%d\n", api, i);
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fname = ggMatchConfig(_configHandle, api, NULL);
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if (fname == NULL)
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{
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/* No special implementation for this sublib */
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continue;
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}
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lib = ggiExtensionLoadDL(vis, fname, args, NULL);
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}
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}
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break;
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}
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return 0;
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}
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int GGIdlinit(ggi_visual *vis, const char *args, void *argptr)
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{
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genkgi_hook_mesa *priv;
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char libname[256], libargs[256];
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int id, err;
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struct stat junk;
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ggifunc_getapi *oldgetapi;
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gl_ggiDEBUG("display-fbdev-kgicon-mesa: GGIdlinit start\n");
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GENKGI_PRIVATE(vis) = priv = malloc(sizeof(genkgi_hook_mesa));
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if (priv == NULL)
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{
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fprintf(stderr, "Failed to allocate genkgi_hook!\n");
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return GGI_DL_ERROR;
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}
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err = ggLoadConfig(conffile, &_configHandle);
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if (err != GGI_OK)
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{
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gl_ggiPrint("display-fbdev: Couldn't open %s\n", conffile);
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return err;
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}
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/* Hack city here. We need to probe the KGI driver properly to discover
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* the acceleration type.
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*/
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priv->have_accel = 0;
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#if 0
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if (stat("/proc/savage4", &junk) == 0)
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{
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sprintf(priv->accel, "%s%s", accel_prefix, "savage4");
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priv->have_accel = 1;
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gl_ggiDEBUG("display-fbdev-kgicon-mesa: Using accel: \"%s\"\n", priv->accel);
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}
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#endif
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/* Mode management */
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vis->opdisplay->getapi = GGIMesa_genkgi_getapi;
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ggiIndicateChange(vis, GGI_CHG_APILIST);
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/* Give the accel sublibs a chance to set up a driver */
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if (priv->have_accel == 1)
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{
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oldgetapi = vis->opdisplay->getapi;
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vis->opdisplay->getapi = GGIMesa_genkgi_getapi;
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changed(vis, GGI_CHG_APILIST);
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/* If the accel sublibs didn't produce, back up
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* and keep looking */
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if ((LIBGGI_MESAEXT(vis)->update_state == NULL) ||
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(LIBGGI_MESAEXT(vis)->setup_driver == NULL))
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vis->opdisplay->getapi = oldgetapi;
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}
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gl_ggiDEBUG("display-fbdev-kgicon-mesa: GGIdlinit finished\n");
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return 0;
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}
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int GGIdlcleanup(ggi_visual *vis)
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{
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return 0;
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}
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#include <ggi/internal/ggidlinit.h>
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