// fbinfo.c // // Copyright (c) 2006, Mike Acton // // Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated // documentation files (the "Software"), to deal in the Software without restriction, including without // limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of // the Software, and to permit persons to whom the Software is furnished to do so, subject to the following // conditions: // // The above copyright notice and this permission notice shall be included in all copies or substantial // portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO // EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN // AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE // OR OTHER DEALINGS IN THE SOFTWARE. #include #include #include #include #include #include int main( void ) { const int fb_file = open( "/dev/fb0", O_RDWR ); const int open_fb_error = (fb_file >> ((sizeof(int)*8)-1)); if ( open_fb_error < 0 ) { printf("Could not open /dev/fb0. Check permissions\n"); return (-1); } struct fb_vblank vblank; int get_vblank_error = ioctl(fb_file, FBIOGET_VBLANK, (unsigned long)&vblank); if ( get_vblank_error == -1 ) { printf("Warning: FBIOGET_VBLANK Failed\n"); } else { printf("FBIOGET_VBLANK:\n"); printf(" flags:\n"); printf(" FB_VBLANK_VBLANKING : %s\n",(vblank.flags&FB_VBLANK_VBLANKING) ?"TRUE":"FALSE"); printf(" FB_VBLANK_HBLANKING : %s\n",(vblank.flags&FB_VBLANK_HBLANKING) ?"TRUE":"FALSE"); printf(" FB_VBLANK_HAVE_VBLANK : %s\n",(vblank.flags&FB_VBLANK_HAVE_VBLANK)?"TRUE":"FALSE"); printf(" FB_VBLANK_HAVE_HBLANK : %s\n",(vblank.flags&FB_VBLANK_HAVE_HBLANK)?"TRUE":"FALSE"); printf(" FB_VBLANK_HAVE_COUNT : %s\n",(vblank.flags&FB_VBLANK_HAVE_COUNT) ?"TRUE":"FALSE"); printf(" FB_VBLANK_HAVE_VCOUNT : %s\n",(vblank.flags&FB_VBLANK_HAVE_VCOUNT)?"TRUE":"FALSE"); printf(" FB_VBLANK_HAVE_HCOUNT : %s\n",(vblank.flags&FB_VBLANK_HAVE_HCOUNT)?"TRUE":"FALSE"); printf(" FB_VBLANK_VSYNCING : %s\n",(vblank.flags&FB_VBLANK_VSYNCING) ?"TRUE":"FALSE"); printf(" FB_VBLANK_HAVE_VSYNC : %s\n",(vblank.flags&FB_VBLANK_HAVE_VSYNC) ?"TRUE":"FALSE"); printf(" count : %d\n", vblank.count ); printf(" vcount : %d\n", vblank.vcount ); printf(" hcount : %d\n", vblank.hcount ); } printf("-------------------------------------\n"); struct fb_fix_screeninfo fscreeninfo; int get_fscreeninfo_error = ioctl(fb_file, FBIOGET_FSCREENINFO, (unsigned long)&fscreeninfo); if ( get_fscreeninfo_error == -1 ) { printf("Warning: FBIOGET_FSCREENINFO Failed\n"); } else { printf("FBIOGET_FSCREENINFO:\n"); printf(" id : \"" "%c%c%c%c" "%c%c%c%c" "%c%c%c%c" "%c%c%c%c" "\"\n", fscreeninfo.id[0], fscreeninfo.id[1], fscreeninfo.id[2], fscreeninfo.id[3], fscreeninfo.id[4], fscreeninfo.id[5], fscreeninfo.id[6], fscreeninfo.id[7], fscreeninfo.id[8], fscreeninfo.id[9], fscreeninfo.id[10], fscreeninfo.id[11], fscreeninfo.id[12], fscreeninfo.id[13], fscreeninfo.id[14], fscreeninfo.id[15] ); if ( sizeof(unsigned long) == 4 ) { printf(" smem_start : 0x%08x\n", (unsigned int)fscreeninfo.smem_start); } else if ( sizeof(unsigned long) == 8 ) { union UL64 { uint32_t u32[2]; uint64_t u64; } smem_start = {.u64=fscreeninfo.smem_start}; printf(" smem_start : 0x%08x_%08x\n",smem_start.u32[1],smem_start.u32[0]); } else { printf("WTF! sizeof(unsigned long) = %d\n",sizeof(unsigned long)); } printf(" smem_len : %u\n", fscreeninfo.smem_len); printf(" type : "); switch (fscreeninfo.type) { case FB_TYPE_PACKED_PIXELS: printf("FB_TYPE_PACKED_PIXELS (0)\n"); break; case FB_TYPE_PLANES: printf("FB_TYPE_PLANES (1)\n"); break; case FB_TYPE_INTERLEAVED_PLANES: printf("FB_TYPE_INTERLEAVED_PLANES (2)\n"); break; case FB_TYPE_TEXT: printf("FB_TYPE_TEXT (3)\n"); break; case FB_TYPE_VGA_PLANES: printf("FB_TYPE_VGA_PLANES (4)\n"); break; default: printf("UNKNOWN (See /usr/include/linux/fb.h)\n"); } printf(" type_aux : "); if ( fscreeninfo.type == FB_TYPE_TEXT ) { switch (fscreeninfo.type_aux) { case FB_AUX_TEXT_MDA: printf("FB_AUX_TEXT_MDA (0)\n"); break; case FB_AUX_TEXT_CGA: printf("FB_AUX_TEXT_CGA (1)\n"); break; case FB_AUX_TEXT_S3_MMIO: printf("FB_AUX_TEXT_S3_MMIO (2)\n"); break; case FB_AUX_TEXT_MGA_STEP16: printf("FB_AUX_TEXT_MGA_STEP16 (3)\n"); break; case FB_AUX_TEXT_MGA_STEP8: printf("FB_AUX_TEXT_MGA_STEP8 (4)\n"); break; default: printf("UNKNOWN (See /usr/include/linux/fb.h)\n"); } } else if ( fscreeninfo.type == FB_TYPE_INTERLEAVED_PLANES ) { switch (fscreeninfo.type_aux) { case FB_AUX_VGA_PLANES_VGA4: printf("FB_AUX_VGA_PLANES_VGA4 (0)\n"); break; case FB_AUX_VGA_PLANES_CFB4: printf("FB_AUX_VGA_PLANES_CFB4 (1)\n"); break; case FB_AUX_VGA_PLANES_CFB8: printf("FB_AUX_VGA_PLANES_CFB8 (2)\n"); break; default: printf("UNKNOWN (See /usr/include/linux/fb.h)\n"); } } else { printf("N/A\n"); } printf(" visual : "); switch (fscreeninfo.visual) { case FB_VISUAL_MONO01: printf("FB_VISUAL_MONO01 (0)\n"); break; case FB_VISUAL_MONO10: printf("FB_VISUAL_MONO10 (1)\n"); break; case FB_VISUAL_TRUECOLOR: printf("FB_VISUAL_TRUECOLOR (2)\n"); break; case FB_VISUAL_PSEUDOCOLOR: printf("FB_VISUAL_PSEUDOCOLOR (3)\n"); break; case FB_VISUAL_DIRECTCOLOR: printf("FB_VISUAL_DIRECTCOLOR (4)\n"); break; case FB_VISUAL_STATIC_PSEUDOCOLOR: printf("FB_VISUAL_STATIC_PSEUDOCOLOR (5)\n"); break; default: printf("UNKNOWN (See /usr/include/linux/fb.h)\n"); } printf(" xpanstep : %u\n", fscreeninfo.xpanstep); printf(" ypanstep : %u\n", fscreeninfo.ypanstep); printf(" ywrapstep : %u\n", fscreeninfo.ywrapstep); printf(" line_length : %u\n", fscreeninfo.line_length); if ( sizeof(unsigned long) == 4 ) { printf(" mmio_start : 0x%08x\n", (unsigned int)fscreeninfo.mmio_start); } else if ( sizeof(unsigned long) == 8 ) { union UL64 { uint32_t u32[2]; uint64_t u64; } mmio_start = {.u64=fscreeninfo.mmio_start}; printf(" mmio_start : 0x%08x_%08x\n",mmio_start.u32[1],mmio_start.u32[0]); } else { printf("WTF! sizeof(unsigned long) = %d\n",sizeof(unsigned long)); } printf(" mmio_len : %u\n", fscreeninfo.mmio_len); printf(" accel : "); switch (fscreeninfo.accel) { case FB_ACCEL_NONE: printf("FB_ACCEL_NONE (0)\n"); break; case FB_ACCEL_ATARIBLITT: printf("FB_ACCEL_ATARIBLITT (1)\n"); break; case FB_ACCEL_AMIGABLITT: printf("FB_ACCEL_AMIGABLITT (2)\n"); break; case FB_ACCEL_S3_TRIO64: printf("FB_ACCEL_S3_TRIO64 (3)\n"); break; case FB_ACCEL_NCR_77C32BLT: printf("FB_ACCEL_NCR_77C32BLT (4)\n"); break; case FB_ACCEL_S3_VIRGE: printf("FB_ACCEL_S3_VIRGE (5)\n"); break; case FB_ACCEL_ATI_MACH64GX: printf("FB_ACCEL_ATI_MACH64GX (6)\n"); break; case FB_ACCEL_DEC_TGA: printf("FB_ACCEL_DEC_TGA (7)\n"); break; case FB_ACCEL_ATI_MACH64CT: printf("FB_ACCEL_ATI_MACH64CT (8)\n"); break; case FB_ACCEL_ATI_MACH64VT: printf("FB_ACCEL_ATI_MACH64VT (9)\n"); break; case FB_ACCEL_ATI_MACH64GT: printf("FB_ACCEL_ATI_MACH64GT (10)\n"); break; case FB_ACCEL_SUN_CREATOR: printf("FB_ACCEL_SUN_CREATOR (11)\n"); break; case FB_ACCEL_SUN_CGSIX: printf("FB_ACCEL_SUN_CGSIX (12)\n"); break; case FB_ACCEL_SUN_LEO: printf("FB_ACCEL_SUN_LEO (13)\n"); break; case FB_ACCEL_IMS_TWINTURBO: printf("FB_ACCEL_IMS_TWINTURBO (14)\n"); break; case FB_ACCEL_3DLABS_PERMEDIA2: printf("FB_ACCEL_3DLABS_PERMEDIA2 (15)\n"); break; case FB_ACCEL_MATROX_MGA2064W: printf("FB_ACCEL_MATROX_MGA2064W (16)\n"); break; case FB_ACCEL_MATROX_MGA1064SG: printf("FB_ACCEL_MATROX_MGA1064SG (17)\n"); break; case FB_ACCEL_MATROX_MGA2164W: printf("FB_ACCEL_MATROX_MGA2164W (18)\n"); break; case FB_ACCEL_MATROX_MGA2164W_AGP: printf("FB_ACCEL_MATROX_MGA2164W_AGP (19)\n"); break; case FB_ACCEL_MATROX_MGAG100: printf("FB_ACCEL_MATROX_MGAG100 (20)\n"); break; case FB_ACCEL_MATROX_MGAG200: printf("FB_ACCEL_MATROX_MGAG200 (21)\n"); break; case FB_ACCEL_SUN_CG14: printf("FB_ACCEL_SUN_CG14 (22)\n"); break; case FB_ACCEL_SUN_BWTWO: printf("FB_ACCEL_SUN_BWTWO (23)\n"); break; case FB_ACCEL_SUN_CGTHREE: printf("FB_ACCEL_SUN_CGTHREE (24)\n"); break; case FB_ACCEL_SUN_TCX: printf("FB_ACCEL_SUN_TCX (25)\n"); break; case FB_ACCEL_MATROX_MGAG400: printf("FB_ACCEL_MATROX_MGAG400 (26)\n"); break; case FB_ACCEL_NV3: printf("FB_ACCEL_NV3 (27)\n"); break; case FB_ACCEL_NV4: printf("FB_ACCEL_NV4 (28)\n"); break; case FB_ACCEL_NV5: printf("FB_ACCEL_NV5 (29)\n"); break; case FB_ACCEL_CT_6555x: printf("FB_ACCEL_CT_6555x (30)\n"); break; case FB_ACCEL_3DFX_BANSHEE: printf("FB_ACCEL_3DFX_BANSHEE (31)\n"); break; case FB_ACCEL_ATI_RAGE128: printf("FB_ACCEL_ATI_RAGE128 (32)\n"); break; case FB_ACCEL_IGS_CYBER2000: printf("FB_ACCEL_IGS_CYBER2000 (33)\n"); break; case FB_ACCEL_IGS_CYBER2010: printf("FB_ACCEL_IGS_CYBER2010 (34)\n"); break; case FB_ACCEL_IGS_CYBER5000: printf("FB_ACCEL_IGS_CYBER5000 (35)\n"); break; case FB_ACCEL_SIS_GLAMOUR: printf("FB_ACCEL_SIS_GLAMOUR (36)\n"); break; default: printf("UNKNOWN (See /usr/include/linux/fb.h)\n"); } } printf("-------------------------------------\n"); printf("-------------------------------------\n"); int close_fb_error = close( fb_file ); if ( close_fb_error == -1 ) { printf("Warning: Could not close file handle used for /dev/fb0\n"); } return (0); }