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quakeforge/libs/video/targets/fbset.c
Bill Currie 6a5bbf6f0a memory allocation checking cleanup
2002-05-14 06:37:28 +00:00

999 lines
28 KiB
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/*
* Linux Frame Buffer Device Configuration
*
* © Copyright 1995-1999 by Geert Uytterhoeven
* (Geert.Uytterhoeven@cs.kuleuven.ac.be)
*
* --------------------------------------------------------------------------
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of the Linux
* distribution for more details.
*
* Petr Vandrovec <vandrove@vc.cvut.cz>:
* -grayscale, -rgba, -nonstd, VGA modes reporting
*
* Brad Midgley <brad@exodus.pht.com>:
* -match
*
*/
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include "QF/sys.h"
#include "fbset.h"
struct file;
struct inode;
/* Default Frame Buffer Special Device Node */
#define DEFAULT_FRAMEBUFFER "/dev/fb0"
/* Default Video Mode Database File */
#define DEFAULT_MODEDBFILE "/etc/fb.modes"
/* Command Line Options */
static const char *ProgramName;
static int Opt_test = 0;
static int Opt_show = 0;
static int Opt_info = 0;
static int Opt_version = 0;
static int Opt_verbose = 0;
static int Opt_xfree86 = 0;
static int Opt_change = 0;
static int Opt_all = 0;
static const char *Opt_fb = NULL;
const char *Opt_modedb = DEFAULT_MODEDBFILE;
static const char *Opt_xres = NULL;
static const char *Opt_yres = NULL;
static const char *Opt_vxres = NULL;
static const char *Opt_vyres = NULL;
static const char *Opt_depth = NULL;
static const char *Opt_pixclock = NULL;
static const char *Opt_left = NULL;
static const char *Opt_right = NULL;
static const char *Opt_upper = NULL;
static const char *Opt_lower = NULL;
static const char *Opt_hslen = NULL;
static const char *Opt_vslen = NULL;
static const char *Opt_accel = NULL;
static const char *Opt_hsync = NULL;
static const char *Opt_vsync = NULL;
static const char *Opt_csync = NULL;
static const char *Opt_gsync = NULL;
static const char *Opt_extsync = NULL;
static const char *Opt_bcast = NULL;
static const char *Opt_laced = NULL;
static const char *Opt_double = NULL;
static const char *Opt_move = NULL;
static const char *Opt_step = NULL;
static const char *Opt_modename = NULL;
static const char *Opt_rgba = NULL;
static const char *Opt_nonstd = NULL;
static const char *Opt_grayscale = NULL;
static const char *Opt_matchyres = NULL;
static struct {
const char *name;
const char **value;
const int change;
} Options[] = {
{ "-fb", &Opt_fb, 0 },
{ "-db", &Opt_modedb, 0 },
{ "-xres", &Opt_xres, 1 },
{ "-yres", &Opt_yres, 1 },
{ "-vxres", &Opt_vxres, 1 },
{ "-vyres", &Opt_vyres, 1 },
{ "-depth", &Opt_depth, 1 },
{ "-nonstd", &Opt_nonstd, 1},
{ "-pixclock", &Opt_pixclock, 1 },
{ "-left", &Opt_left, 1 },
{ "-right", &Opt_right, 1 },
{ "-upper", &Opt_upper, 1 },
{ "-lower", &Opt_lower, 1 },
{ "-hslen", &Opt_hslen, 1 },
{ "-vslen", &Opt_vslen, 1 },
{ "-accel", &Opt_accel, 1 },
{ "-hsync", &Opt_hsync, 1 },
{ "-vsync", &Opt_vsync, 1 },
{ "-csync", &Opt_csync, 1 },
{ "-gsync", &Opt_gsync, 1 },
{ "-extsync", &Opt_extsync, 1 },
{ "-bcast", &Opt_bcast, 1 },
{ "-laced", &Opt_laced, 1 },
{ "-double", &Opt_double, 1 },
{ "-move", &Opt_move, 1 },
{ "-step", &Opt_step, 1 },
{ "-rgba", &Opt_rgba, 1 },
{ "-grayscale", &Opt_grayscale, 1 },
{ NULL, NULL, 0 }
};
/* Video Mode Database */
struct VideoMode *VideoModes = NULL;
/* Hardware Text Modes */
static struct textentry {
__u32 id;
const char *name;
} Textmodes[] = {
{ FB_AUX_TEXT_MDA, "Monochrome text" },
{ FB_AUX_TEXT_CGA, "CGA/EGA/VGA Color text" },
{ FB_AUX_TEXT_S3_MMIO, "S3 MMIO fasttext" },
{ FB_AUX_TEXT_MGA_STEP16, "MGA Millennium I step 16 text" },
{ FB_AUX_TEXT_MGA_STEP8, "MGA step 8 text" },
};
static struct textentry VGAModes[] = {
#ifdef HAVE_FB_AUX_VGA_PLANES_VGA4
{ FB_AUX_VGA_PLANES_VGA4, "VGA 16 colors in 4 planes" },
#endif
#ifdef HAVE_FB_AUX_VGA_PLANES_CFB4
{ FB_AUX_VGA_PLANES_CFB4, "VGA 16 colors in 1 plane" },
#endif
#ifdef HAVE_FB_AUX_VGA_PLANES_CFB8
{ FB_AUX_VGA_PLANES_CFB8, "VGA 256 colors in 4 planes" },
#endif
/* last entry has name == NULL */
{ 0, NULL}
};
/* Hardware Accelerators */
static struct accelentry {
__u32 id;
const char *name;
} Accelerators[] = {
{ FB_ACCEL_NONE, "No" },
{ FB_ACCEL_ATARIBLITT, "Atari Blitter" },
{ FB_ACCEL_AMIGABLITT, "Amiga Blitter" },
{ FB_ACCEL_S3_TRIO64, "S3 Trio64" },
{ FB_ACCEL_NCR_77C32BLT, "NCR 77C32BLT" },
{ FB_ACCEL_S3_VIRGE, "S3 ViRGE" },
{ FB_ACCEL_ATI_MACH64GX, "ATI Mach64GX" },
{ FB_ACCEL_DEC_TGA, "DEC 21030 TGA" },
{ FB_ACCEL_ATI_MACH64CT, "ATI Mach64CT" },
{ FB_ACCEL_ATI_MACH64VT, "ATI Mach64VT" },
{ FB_ACCEL_ATI_MACH64GT, "ATI Mach64GT" },
{ FB_ACCEL_SUN_CREATOR, "Sun Creator/Creator3D" },
{ FB_ACCEL_SUN_CGSIX, "Sun cg6" },
{ FB_ACCEL_SUN_LEO, "Sun leo/zx" },
{ FB_ACCEL_IMS_TWINTURBO, "IMS Twin Turbo" },
{ FB_ACCEL_3DLABS_PERMEDIA2, "3Dlabs Permedia 2" },
{ FB_ACCEL_MATROX_MGA2064W, "Matrox MGA2064W (Millennium)" },
{ FB_ACCEL_MATROX_MGA1064SG, "Matrox MGA1064SG (Mystique)" },
{ FB_ACCEL_MATROX_MGA2164W, "Matrox MGA2164W (Millennium II)" },
{ FB_ACCEL_MATROX_MGA2164W_AGP, "Matrox MGA2164W (Millennium II AGP)" },
{ FB_ACCEL_MATROX_MGAG100, "Matrox G100 (Productiva G100)" },
{ FB_ACCEL_MATROX_MGAG200, "Matrox G200 (Millennium, Mystique)" },
{ FB_ACCEL_SUN_CG14, "Sun cg14" },
{ FB_ACCEL_SUN_BWTWO, "Sun bw2" },
{ FB_ACCEL_SUN_CGTHREE, "Sun cg3" },
{ FB_ACCEL_SUN_TCX, "Sun tcx" },
{ FB_ACCEL_MATROX_MGAG400, "Matrox G400" },
};
/* Current Video Mode */
struct VideoMode Current;
/* Function Prototypes */
int OpenFrameBuffer(const char *name);
void CloseFrameBuffer(int fh);
int GetVarScreenInfo(int fh, struct fb_var_screeninfo *var);
int SetVarScreenInfo(int fh, struct fb_var_screeninfo *var);
int GetFixScreenInfo(int fh, struct fb_fix_screeninfo *fix);
void ConvertFromVideoMode(const struct VideoMode *vmode,
struct fb_var_screeninfo *var);
void ConvertToVideoMode(const struct fb_var_screeninfo *var,
struct VideoMode *vmode);
static int atoboolean(const char *var);
void ReadModeDB(void);
struct VideoMode *FindVideoMode(const char *name);
static void ModifyVideoMode(struct VideoMode *vmode);
static void DisplayVModeInfo(struct VideoMode *vmode);
static void DisplayFBInfo(struct fb_fix_screeninfo *fix);
static int FillScanRates(struct VideoMode *vmode);
static void Usage(void);
int main(int argc, char *argv[]);
#define Die Sys_Printf
#define puts(s) Sys_Printf("%s\n",(s))
#define printf Sys_Printf
/* Open the Frame Buffer Device */
int
OpenFrameBuffer (const char *name)
{
int fh;
if (Opt_verbose)
printf("Opening frame buffer device `%s'\n", name);
if ((fh = open(name, O_RDWR)) == -1)
Die("open %s: %s\n", name, strerror(errno));
return fh;
}
/* Close the Frame Buffer Device */
void
CloseFrameBuffer (int fh)
{
close(fh);
}
/* Get the Variable Part of the Screen Info */
int
GetVarScreenInfo (int fh, struct fb_var_screeninfo *var)
{
if (ioctl(fh, FBIOGET_VSCREENINFO, var)) {
Die("ioctl FBIOGET_VSCREENINFO: %s\n", strerror(errno));
return -1;
}
return 0;
}
/* Set (and Get) the Variable Part of the Screen Info */
int
SetVarScreenInfo (int fh, struct fb_var_screeninfo *var)
{
if (ioctl(fh, FBIOPUT_VSCREENINFO, var)) {
Die("ioctl FBIOPUT_VSCREENINFO: %s\n", strerror(errno));
return -1;
}
return 0;
}
/* Get the Fixed Part of the Screen Info */
int
GetFixScreenInfo (int fh, struct fb_fix_screeninfo *fix)
{
if (ioctl(fh, FBIOGET_FSCREENINFO, fix)) {
Die("ioctl FBIOGET_FSCREENINFO: %s\n", strerror(errno));
return -1;
}
return 0;
}
/* Conversion Routines */
void
ConvertFromVideoMode (const struct VideoMode *vmode,
struct fb_var_screeninfo *var)
{
memset(var, 0, sizeof(struct fb_var_screeninfo));
var->xres = vmode->xres;
var->yres = vmode->yres;
var->xres_virtual = vmode->vxres;
var->yres_virtual = vmode->vyres;
var->bits_per_pixel = vmode->depth;
var->nonstd = vmode->nonstd;
if (Opt_test)
var->activate = FB_ACTIVATE_TEST;
else
var->activate = FB_ACTIVATE_NOW;
if (Opt_all)
var->activate = FB_ACTIVATE_ALL;
var->accel_flags = vmode->accel_flags;
var->pixclock = vmode->pixclock;
var->left_margin = vmode->left;
var->right_margin = vmode->right;
var->upper_margin = vmode->upper;
var->lower_margin = vmode->lower;
var->hsync_len = vmode->hslen;
var->vsync_len = vmode->vslen;
if (vmode->hsync == HIGH)
var->sync |= FB_SYNC_HOR_HIGH_ACT;
if (vmode->vsync == HIGH)
var->sync |= FB_SYNC_VERT_HIGH_ACT;
if (vmode->csync == HIGH)
var->sync |= FB_SYNC_COMP_HIGH_ACT;
if (vmode->gsync == HIGH)
var->sync |= FB_SYNC_ON_GREEN;
if (vmode->extsync == TRUE)
var->sync |= FB_SYNC_EXT;
if (vmode->bcast == TRUE)
var->sync |= FB_SYNC_BROADCAST;
if (vmode->laced == TRUE)
var->vmode = FB_VMODE_INTERLACED;
else if (vmode->dblscan == TRUE)
var->vmode = FB_VMODE_DOUBLE;
else
var->vmode = FB_VMODE_NONINTERLACED;
var->vmode |= FB_VMODE_CONUPDATE;
var->red.length = vmode->red.length;
var->red.offset = vmode->red.offset;
var->green.length = vmode->green.length;
var->green.offset = vmode->green.offset;
var->blue.length = vmode->blue.length;
var->blue.offset = vmode->blue.offset;
var->transp.length = vmode->transp.length;
var->transp.offset = vmode->transp.offset;
var->grayscale = vmode->grayscale;
}
void
ConvertToVideoMode (const struct fb_var_screeninfo *var,
struct VideoMode *vmode)
{
vmode->name = NULL;
vmode->xres = var->xres;
vmode->yres = var->yres;
vmode->vxres = var->xres_virtual;
vmode->vyres = var->yres_virtual;
vmode->depth = var->bits_per_pixel;
vmode->nonstd = var->nonstd;
vmode->accel_flags = var->accel_flags;
vmode->pixclock = var->pixclock;
vmode->left = var->left_margin;
vmode->right = var->right_margin;
vmode->upper = var->upper_margin;
vmode->lower = var->lower_margin;
vmode->hslen = var->hsync_len;
vmode->vslen = var->vsync_len;
vmode->hsync = var->sync & FB_SYNC_HOR_HIGH_ACT ? HIGH : LOW;
vmode->vsync = var->sync & FB_SYNC_VERT_HIGH_ACT ? HIGH : LOW;
vmode->csync = var->sync & FB_SYNC_COMP_HIGH_ACT ? HIGH : LOW;
vmode->gsync = var->sync & FB_SYNC_ON_GREEN ? TRUE : FALSE;
vmode->extsync = var->sync & FB_SYNC_EXT ? TRUE : FALSE;
vmode->bcast = var->sync & FB_SYNC_BROADCAST ? TRUE : FALSE;
vmode->grayscale = var->grayscale;
vmode->laced = FALSE;
vmode->dblscan = FALSE;
switch (var->vmode & FB_VMODE_MASK) {
case FB_VMODE_INTERLACED:
vmode->laced = TRUE;
break;
case FB_VMODE_DOUBLE:
vmode->dblscan = TRUE;
break;
}
vmode->red.length = var->red.length;
vmode->red.offset = var->red.offset;
vmode->green.length = var->green.length;
vmode->green.offset = var->green.offset;
vmode->blue.length = var->blue.length;
vmode->blue.offset = var->blue.offset;
vmode->transp.length = var->transp.length;
vmode->transp.offset = var->transp.offset;
FillScanRates(vmode);
}
static int
atoboolean (const char *var)
{
int value = 0;
if (!strcasecmp (var, "false") || !strcasecmp (var, "low") ||
!strcasecmp (var, "no") || !strcasecmp (var, "off") ||
!strcmp (var, "0"))
value = 0;
else if (!strcasecmp (var, "true") || !strcasecmp (var, "high") ||
!strcasecmp (var, "yes") || !strcasecmp (var, "on") ||
!strcmp (var, "1"))
value = 1;
else
Die("Invalid value `%s'\n", var);
return value;
}
void
AddVideoMode (const struct VideoMode *vmode)
{
struct VideoMode *vmode2;
if (FindVideoMode(vmode->name))
Die("%s:%d: Duplicate mode name `%s'\n", Opt_modedb, line,
vmode->name);
vmode2 = malloc(sizeof(struct VideoMode));
SYS_CHECKMEM (vmode2);
*vmode2 = *vmode;
if (!FillScanRates(vmode2))
Die("%s:%d: Bad video mode `%s'\n", Opt_modedb, line, vmode2->name);
vmode2->next = VideoModes;
VideoModes = vmode2;
}
/* Read the Video Mode Database */
void
ReadModeDB (void)
{
if (Opt_verbose)
printf("Reading mode database from file `%s'\n", Opt_modedb);
if (!(yyin = fopen(Opt_modedb, "r"))) {
Die("fopen %s: %s\n", Opt_modedb, strerror(errno));
return;
}
yyparse();
fclose(yyin);
}
static void
getColor (struct color *color, const char** opt)
{
char* ptr;
color->length = 0;
color->offset = 0;
ptr = (char*)(*opt);
if (!ptr)
return;
color->length = strtoul(ptr, &ptr, 0);
if (!ptr)
return;
if (*ptr == '/')
color->offset = strtoul(ptr+1, &ptr, 0);
if (ptr) {
while (*ptr && isspace(*ptr))
ptr++;
if (*ptr == ',') {
ptr++;
} else if (*ptr)
Die("Bad RGBA syntax, rL/rO,gL/gO,bL/bO,tL/tO or rL,gL,bL,tL\n");
}
*opt = ptr;
return;
}
void
makeRGBA (struct VideoMode *vmode, const char* opt)
{
getColor(&vmode->red, &opt);
getColor(&vmode->green, &opt);
getColor(&vmode->blue, &opt);
getColor(&vmode->transp, &opt);
}
/* Find a Video Mode */
struct VideoMode
*FindVideoMode (const char *name)
{
struct VideoMode *vmode;
for (vmode = VideoModes; vmode; vmode = vmode->next)
if (!strcmp(name, vmode->name))
break;
return vmode;
}
/* Modify a Video Mode */
static void
ModifyVideoMode (struct VideoMode *vmode)
{
u_int hstep = 8, vstep = 2;
if (Opt_xres)
vmode->xres = strtoul(Opt_xres, NULL, 0);
if (Opt_yres)
vmode->yres = strtoul(Opt_yres, NULL, 0);
if (Opt_vxres)
vmode->vxres = strtoul(Opt_vxres, NULL, 0);
if (Opt_vyres)
vmode->vyres = strtoul(Opt_vyres, NULL, 0);
if (Opt_depth)
vmode->depth = strtoul(Opt_depth, NULL, 0);
if (Opt_nonstd)
vmode->nonstd = strtoul(Opt_nonstd, NULL, 0);
if (Opt_accel)
vmode->accel_flags = atoboolean(Opt_accel) ? FB_ACCELF_TEXT : 0;
if (Opt_pixclock)
vmode->pixclock = strtoul(Opt_pixclock, NULL, 0);
if (Opt_left)
vmode->left = strtoul(Opt_left, NULL, 0);
if (Opt_right)
vmode->right = strtoul(Opt_right, NULL, 0);
if (Opt_upper)
vmode->upper = strtoul(Opt_upper, NULL, 0);
if (Opt_lower)
vmode->lower = strtoul(Opt_lower, NULL, 0);
if (Opt_hslen)
vmode->hslen = strtoul(Opt_hslen, NULL, 0);
if (Opt_vslen)
vmode->vslen = strtoul(Opt_vslen, NULL, 0);
if (Opt_hsync)
vmode->hsync = atoboolean(Opt_hsync);
if (Opt_vsync)
vmode->vsync = atoboolean(Opt_vsync);
if (Opt_csync)
vmode->csync = atoboolean(Opt_csync);
if (Opt_gsync)
vmode->gsync = atoboolean(Opt_gsync);
if (Opt_extsync)
vmode->extsync = atoboolean(Opt_extsync);
if (Opt_bcast)
vmode->bcast = atoboolean(Opt_bcast);
if (Opt_laced)
vmode->laced = atoboolean(Opt_laced);
if (Opt_double)
vmode->dblscan = atoboolean(Opt_double);
if (Opt_grayscale)
vmode->grayscale = atoboolean(Opt_grayscale);
if (Opt_step)
hstep = vstep = strtoul(Opt_step, NULL, 0);
if (Opt_matchyres)
vmode->vyres = vmode->yres;
if (Opt_move) {
if (!strcasecmp(Opt_move, "left")) {
if (hstep > vmode->left)
Die("The left margin cannot be negative\n");
vmode->left -= hstep;
vmode->right += hstep;
} else if (!strcasecmp(Opt_move, "right")) {
if (hstep > vmode->right)
Die("The right margin cannot be negative\n");
vmode->left += hstep;
vmode->right -= hstep;
} else if (!strcasecmp(Opt_move, "up")) {
if (vstep > vmode->upper)
Die("The upper margin cannot be negative\n");
vmode->upper -= vstep;
vmode->lower += vstep;
} else if (!strcasecmp(Opt_move, "down")) {
if (vstep > vmode->lower)
Die("The lower margin cannot be negative\n");
vmode->upper += vstep;
vmode->lower -= vstep;
} else
Die("Invalid direction `%s'\n", Opt_move);
}
if (Opt_rgba)
makeRGBA(vmode, Opt_rgba);
if (!FillScanRates(vmode))
Die("Bad video mode\n");
}
/* Display the Video Mode Information */
static void
DisplayVModeInfo (struct VideoMode *vmode)
{
u_int res, sstart, send, total;
puts("");
if (!Opt_xfree86) {
printf("mode \"%dx%d", vmode->xres, vmode->yres);
if (vmode->pixclock) {
printf("-%d\"\n", (int)(vmode->vrate+0.5));
printf(" # D: %5.3f MHz, H: %5.3f kHz, V: %5.3f Hz\n",
vmode->drate/1E6, vmode->hrate/1E3, vmode->vrate);
} else
puts("\"");
printf(" geometry %d %d %d %d %d\n", vmode->xres, vmode->yres,
vmode->vxres, vmode->vyres, vmode->depth);
printf(" timings %d %d %d %d %d %d %d\n", vmode->pixclock,
vmode->left, vmode->right, vmode->upper, vmode->lower,
vmode->hslen, vmode->vslen);
if (vmode->hsync)
puts(" hsync high");
if (vmode->vsync)
puts(" vsync high");
if (vmode->csync)
puts(" csync high");
if (vmode->gsync)
puts(" gsync true");
if (vmode->extsync)
puts(" extsync true");
if (vmode->bcast)
puts(" bcast true");
if (vmode->laced)
puts(" laced true");
if (vmode->dblscan)
puts(" double true");
if (vmode->nonstd)
printf(" nonstd %u\n", vmode->nonstd);
if (vmode->accel_flags)
puts(" accel true");
if (vmode->grayscale)
puts(" grayscale true");
printf(" rgba %u/%u,%u/%u,%u/%u,%u/%u\n",
vmode->red.length, vmode->red.offset, vmode->green.length,
vmode->green.offset, vmode->blue.length, vmode->blue.offset,
vmode->transp.length, vmode->transp.offset);
puts("endmode\n");
} else {
printf("Mode \"%dx%d\"\n", vmode->xres, vmode->yres);
if (vmode->pixclock) {
printf(" # D: %5.3f MHz, H: %5.3f kHz, V: %5.3f Hz\n",
vmode->drate/1E6, vmode->hrate/1E3, vmode->vrate);
printf(" DotClock %5.3f\n", vmode->drate/1E6+0.001);
} else
puts(" DotClock Unknown");
res = vmode->xres;
sstart = res+vmode->right;
send = sstart+vmode->hslen;
total = send+vmode->left;
printf(" HTimings %d %d %d %d\n", res, sstart, send, total);
res = vmode->yres;
sstart = res+vmode->lower;
send = sstart+vmode->vslen;
total = send+vmode->upper;
printf(" VTimings %d %d %d %d\n", res, sstart, send, total);
printf(" Flags ");
if (vmode->laced)
printf(" \"Interlace\"");
if (vmode->dblscan)
printf(" \"DoubleScan\"");
if (vmode->hsync)
printf(" \"+HSync\"");
else
printf(" \"-HSync\"");
if (vmode->vsync)
printf(" \"+VSync\"");
else
printf(" \"-VSync\"");
if (vmode->csync)
printf(" \"Composite\"");
if (vmode->extsync)
puts(" # Warning: XFree86 doesn't support extsync\n");
if (vmode->bcast)
printf(" \"bcast\"");
if (vmode->accel_flags)
puts(" # Warning: XFree86 doesn't support accel\n");
if (vmode->grayscale)
puts(" # Warning: XFree86 doesn't support grayscale\n");
puts("\nEndMode\n");
}
}
/* Display the Frame Buffer Device Information */
static void
DisplayFBInfo (struct fb_fix_screeninfo *fix)
{
int i;
puts("Frame buffer device information:");
printf(" Name : %s\n", fix->id);
printf(" Address : %p\n", (void *)fix->smem_start);
printf(" Size : %d\n", fix->smem_len);
printf(" Type : ");
switch (fix->type) {
case FB_TYPE_PACKED_PIXELS:
puts("PACKED PIXELS");
break;
case FB_TYPE_PLANES:
puts("PLANES");
break;
case FB_TYPE_INTERLEAVED_PLANES:
printf("INTERLEAVED PLANES (%d bytes interleave)\n",
fix->type_aux);
break;
case FB_TYPE_TEXT:
for (i = 0; i < sizeof(Textmodes)/sizeof(*Textmodes); i++)
if (fix->type_aux == Textmodes[i].id)
break;
if (i < sizeof(Textmodes)/sizeof(*Textmodes))
puts(Textmodes[i].name);
else
printf("Unknown text (%d)\n", fix->type_aux);
break;
case FB_TYPE_VGA_PLANES:
{
struct textentry *t;
for (t = VGAModes; t->name; t++)
if (fix->type_aux == t->id)
break;
if (t->name)
puts(t->name);
else
printf("Unknown VGA mode (%d)\n", fix->type_aux);
}
break;
default:
printf("%d (UNKNOWN)\n", fix->type);
printf(" Type_aux : %d\n", fix->type_aux);
break;
}
printf(" Visual : ");
switch (fix->visual) {
case FB_VISUAL_MONO01:
puts("MONO01");
break;
case FB_VISUAL_MONO10:
puts("MONO10");
break;
case FB_VISUAL_TRUECOLOR:
puts("TRUECOLOR");
break;
case FB_VISUAL_PSEUDOCOLOR:
puts("PSEUDOCOLOR");
break;
case FB_VISUAL_DIRECTCOLOR:
puts("DIRECTCOLOR");
break;
case FB_VISUAL_STATIC_PSEUDOCOLOR:
puts("STATIC PSEUDOCOLOR");
break;
default:
printf("%d (UNKNOWN)\n", fix->visual);
break;
}
printf(" XPanStep : %d\n", fix->xpanstep);
printf(" YPanStep : %d\n", fix->ypanstep);
printf(" YWrapStep : %d\n", fix->ywrapstep);
printf(" LineLength : %d\n", fix->line_length);
if (fix->mmio_len) {
printf(" MMIO Address: %p\n", (void *)fix->mmio_start);
printf(" MMIO Size : %d\n", fix->mmio_len);
}
printf(" Accelerator : ");
for (i = 0; i < sizeof(Accelerators)/sizeof(*Accelerators); i++)
if (fix->accel == Accelerators[i].id)
break;
if (i < sizeof(Accelerators)/sizeof(*Accelerators))
puts(Accelerators[i].name);
else
printf("Unknown (%d)\n", fix->accel);
}
/* Calculate the Scan Rates for a Video Mode */
static int
FillScanRates (struct VideoMode *vmode)
{
u_int htotal = vmode->left+vmode->xres+vmode->right+vmode->hslen;
u_int vtotal = vmode->upper+vmode->yres+vmode->lower+vmode->vslen;
if (vmode->dblscan)
vtotal <<= 2;
else if (!vmode->laced)
vtotal <<= 1;
if (!htotal || !vtotal)
return 0;
if (vmode->pixclock) {
vmode->drate = 1E12/vmode->pixclock;
vmode->hrate = vmode->drate/htotal;
vmode->vrate = vmode->hrate/vtotal*2;
} else {
vmode->drate = 0;
vmode->hrate = 0;
vmode->vrate = 0;
}
return 1;
}
/* Print the Usage Template and Exit */
static void
Usage (void)
{
puts(FBSET_VERSION);
printf("\nUsage: %s [options] [mode]\n\n"
"Valid options:\n"
" General options:\n"
" -h, --help : display this usage information\n"
" --test : don't change, just test whether the mode "
"is "
"valid\n"
" -s, --show : display video mode settings\n"
" -i, --info : display all frame buffer information\n"
" -v, --verbose : verbose mode\n"
" -V, --version : print version information\n"
" -x, --xfree86 : XFree86 compatibility mode\n"
" -a, --all : change all virtual consoles on this "
"device\n"
" Frame buffer special device nodes:\n"
" -fb <device> : processed frame buffer device\n"
" (default is " DEFAULT_FRAMEBUFFER ")\n"
" Video mode database:\n"
" -db <file> : video mode database file\n"
" (default is " DEFAULT_MODEDBFILE ")\n"
" Display geometry:\n"
" -xres <value> : horizontal resolution (in pixels)\n"
" -yres <value> : vertical resolution (in pixels)\n"
" -vxres <value> : virtual horizontal resolution (in "
"pixels)\n"
" -vyres <value> : virtual vertical resolution (in pixels)\n"
" -depth <value> : display depth (in bits per pixel)\n"
" -nonstd <value> : select nonstandard video mode\n"
" -g, --geometry ... : set all geometry parameters at once\n"
" -match : set virtual vertical resolution by "
"virtual resolution\n"
" Display timings:\n"
" -pixclock <value> : pixel clock (in picoseconds)\n"
" -left <value> : left margin (in pixels)\n"
" -right <value> : right margin (in pixels)\n"
" -upper <value> : upper margin (in pixel lines)\n"
" -lower <value> : lower margin (in pixel lines)\n"
" -hslen <value> : horizontal sync length (in pixels)\n"
" -vslen <value> : vertical sync length (in pixel lines)\n"
" -t, --timings ... : set all timing parameters at once\n"
" Display flags:\n"
" -accel <value> : hardware text acceleration enable (false "
"or true)\n"
" -hsync <value> : horizontal sync polarity (low or high)\n"
" -vsync <value> : vertical sync polarity (low or high)\n"
" -csync <value> : composite sync polarity (low or high)\n"
" -gsync <value> : synch on green (false or true)\n"
" -extsync <value> : external sync enable (false or true)\n"
" -bcast <value> : broadcast enable (false or true)\n"
" -laced <value> : interlace enable (false or true)\n"
" -double <value> : doublescan enable (false or true)\n"
" -rgba <r,g,b,a> : recommended length of color entries\n"
" -grayscale <value> : grayscale enable (false or true)\n"
" Display positioning:\n"
" -move <direction> : move the visible part (left, right, up "
"or down)\n"
" -step <value> : step increment (in pixels or pixel "
"lines)\n"
" (default is 8 horizontal, 2 vertical)\n",
ProgramName);
}
/* Main Routine */
int
fbset_main (int argc, const char *argv[])
{
struct VideoMode *vmode;
struct fb_var_screeninfo var;
struct fb_fix_screeninfo fix;
int fh = -1, i;
ProgramName = argv[0];
/* Parse the Options */
while (--argc > 0) {
argv++;
if (!strcmp(argv[0], "-h") || !strcmp(argv[0], "--help")) {
Usage();
return 1;
} else if (!strcmp(argv[0], "-v") || !strcmp(argv[0], "--verbose"))
Opt_verbose = 1;
else if (!strcmp(argv[0], "-V") || !strcmp(argv[0], "--version"))
Opt_version = 1;
else if (!strcmp(argv[0], "--test"))
Opt_test = 1;
else if (!strcmp(argv[0], "-s") || !strcmp(argv[0], "--show"))
Opt_show = 1;
else if (!strcmp(argv[0], "-i") || !strcmp(argv[0], "--info")) {
Opt_show = 1;
Opt_info = 1;
} else if (!strcmp(argv[0], "-x") || !strcmp(argv[0], "--xfree86"))
Opt_xfree86 = 1;
else if (!strcmp(argv[0], "-a") || !strcmp(argv[0], "--all"))
Opt_all = 1;
else if (!strcmp(argv[0], "-g") || !strcmp(argv[0], "--geometry")) {
if (argc > 5) {
Opt_xres = argv[1];
Opt_yres = argv[2];
Opt_vxres = argv[3];
Opt_vyres = argv[4];
Opt_depth = argv[5];
Opt_change = 1;
argc -= 5;
argv += 5;
} else {
Usage();
return 1;
}
} else if (!strcmp(argv[0], "-t") || !strcmp(argv[0], "--timings")) {
if (argc > 7) {
Opt_pixclock = argv[1];
Opt_left = argv[2];
Opt_right = argv[3];
Opt_upper = argv[4];
Opt_lower = argv[5];
Opt_hslen = argv[6];
Opt_vslen = argv[7];
Opt_change = 1;
argc -= 7;
argv += 7;
} else {
Usage();
return 1;
}
} else if (!strcmp(argv[0], "-match")) {
Opt_matchyres = argv[0];
Opt_change = 1;
} else {
for (i = 0; Options[i].name; i++)
if (!strcmp(argv[0], Options[i].name))
break;
if (Options[i].name) {
if (argc-- > 1) {
*Options[i].value = argv[1];
Opt_change |= Options[i].change;
argv++;
} else {
Usage();
return 1;
}
} else if (!Opt_modename) {
Opt_modename = argv[0];
Opt_change = 1;
} else {
Usage();
return 1;
}
}
}
if (Opt_version || Opt_verbose)
puts(FBSET_VERSION);
if (!Opt_fb) {
Opt_fb = getenv("FRAMEBUFFER");
if (!Opt_fb)
Opt_fb = DEFAULT_FRAMEBUFFER;
}
/* Open the Frame Buffer Device */
fh = OpenFrameBuffer(Opt_fb);
if (fh < 0)
return 1;
/* Get the Video Mode */
if (Opt_modename) {
#if 0
/* Read the Video Mode Database */
ReadModeDB();
#endif
if (!(vmode = FindVideoMode(Opt_modename))) {
Die("Unknown video mode `%s'\n", Opt_modename);
return 1;
}
Current = *vmode;
if (Opt_verbose)
printf("Using video mode `%s'\n", Opt_modename);
} else {
GetVarScreenInfo(fh, &var);
ConvertToVideoMode(&var, &Current);
if (Opt_verbose)
printf("Using current video mode from `%s'\n", Opt_fb);
}
if (Opt_change) {
/* Optionally Modify the Video Mode */
ModifyVideoMode(&Current);
/* Set the Video Mode */
ConvertFromVideoMode(&Current, &var);
if (Opt_verbose)
printf("Setting video mode to `%s'\n", Opt_fb);
SetVarScreenInfo(fh, &var);
ConvertToVideoMode(&var, &Current);
}
/* Display some Video Mode Information */
if (Opt_show || !Opt_change)
DisplayVModeInfo(&Current);
if (Opt_info) {
if (Opt_verbose)
puts("Getting further frame buffer information");
if (GetFixScreenInfo(fh, &fix) != -1)
DisplayFBInfo(&fix);
}
/* Close the Frame Buffer Device */
CloseFrameBuffer(fh);
return 0;
}
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