1 #ifndef _LINUX_FB_H 2 #define _LINUX_FB_H 3 4 #include <linux/types.h> 5 #include <linux/i2c.h> 6 #ifdef __KERNEL__ 7 #include <linux/kgdb.h> 8 #endif /* __KERNEL__ */ 9 10 /* Definitions of frame buffers */ 11 12 #define FB_MAX 32 /* sufficient for now */ 13 14 /* ioctls 15 0x46 is 'F' */ 16 #define FBIOGET_VSCREENINFO 0x4600 17 #define FBIOPUT_VSCREENINFO 0x4601 18 #define FBIOGET_FSCREENINFO 0x4602 19 #define FBIOGETCMAP 0x4604 20 #define FBIOPUTCMAP 0x4605 21 #define FBIOPAN_DISPLAY 0x4606 22 #ifdef __KERNEL__ 23 #define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor_user) 24 #else 25 #define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor) 26 #endif 27 /* 0x4607-0x460B are defined below */ 28 /* #define FBIOGET_MONITORSPEC 0x460C */ 29 /* #define FBIOPUT_MONITORSPEC 0x460D */ 30 /* #define FBIOSWITCH_MONIBIT 0x460E */ 31 #define FBIOGET_CON2FBMAP 0x460F 32 #define FBIOPUT_CON2FBMAP 0x4610 33 #define FBIOBLANK 0x4611 /* arg: 0 or vesa level + 1 */ 34 #define FBIOGET_VBLANK _IOR('F', 0x12, struct fb_vblank) 35 #define FBIO_ALLOC 0x4613 36 #define FBIO_FREE 0x4614 37 #define FBIOGET_GLYPH 0x4615 38 #define FBIOGET_HWCINFO 0x4616 39 #define FBIOPUT_MODEINFO 0x4617 40 #define FBIOGET_DISPINFO 0x4618 41 #define FBIO_WAITFORVSYNC _IOW('F', 0x20, __u32) 42 43 #define FB_TYPE_PACKED_PIXELS 0 /* Packed Pixels */ 44 #define FB_TYPE_PLANES 1 /* Non interleaved planes */ 45 #define FB_TYPE_INTERLEAVED_PLANES 2 /* Interleaved planes */ 46 #define FB_TYPE_TEXT 3 /* Text/attributes */ 47 #define FB_TYPE_VGA_PLANES 4 /* EGA/VGA planes */ 48 #define FB_TYPE_FOURCC 5 /* Type identified by a V4L2 FOURCC */ 49 50 #define FB_AUX_TEXT_MDA 0 /* Monochrome text */ 51 #define FB_AUX_TEXT_CGA 1 /* CGA/EGA/VGA Color text */ 52 #define FB_AUX_TEXT_S3_MMIO 2 /* S3 MMIO fasttext */ 53 #define FB_AUX_TEXT_MGA_STEP16 3 /* MGA Millenium I: text, attr, 14 reserved bytes */ 54 #define FB_AUX_TEXT_MGA_STEP8 4 /* other MGAs: text, attr, 6 reserved bytes */ 55 #define FB_AUX_TEXT_SVGA_GROUP 8 /* 8-15: SVGA tileblit compatible modes */ 56 #define FB_AUX_TEXT_SVGA_MASK 7 /* lower three bits says step */ 57 #define FB_AUX_TEXT_SVGA_STEP2 8 /* SVGA text mode: text, attr */ 58 #define FB_AUX_TEXT_SVGA_STEP4 9 /* SVGA text mode: text, attr, 2 reserved bytes */ 59 #define FB_AUX_TEXT_SVGA_STEP8 10 /* SVGA text mode: text, attr, 6 reserved bytes */ 60 #define FB_AUX_TEXT_SVGA_STEP16 11 /* SVGA text mode: text, attr, 14 reserved bytes */ 61 #define FB_AUX_TEXT_SVGA_LAST 15 /* reserved up to 15 */ 62 63 #define FB_AUX_VGA_PLANES_VGA4 0 /* 16 color planes (EGA/VGA) */ 64 #define FB_AUX_VGA_PLANES_CFB4 1 /* CFB4 in planes (VGA) */ 65 #define FB_AUX_VGA_PLANES_CFB8 2 /* CFB8 in planes (VGA) */ 66 67 #define FB_VISUAL_MONO01 0 /* Monochr. 1=Black 0=White */ 68 #define FB_VISUAL_MONO10 1 /* Monochr. 1=White 0=Black */ 69 #define FB_VISUAL_TRUECOLOR 2 /* True color */ 70 #define FB_VISUAL_PSEUDOCOLOR 3 /* Pseudo color (like atari) */ 71 #define FB_VISUAL_DIRECTCOLOR 4 /* Direct color */ 72 #define FB_VISUAL_STATIC_PSEUDOCOLOR 5 /* Pseudo color readonly */ 73 #define FB_VISUAL_FOURCC 6 /* Visual identified by a V4L2 FOURCC */ 74 75 #define FB_ACCEL_NONE 0 /* no hardware accelerator */ 76 #define FB_ACCEL_ATARIBLITT 1 /* Atari Blitter */ 77 #define FB_ACCEL_AMIGABLITT 2 /* Amiga Blitter */ 78 #define FB_ACCEL_S3_TRIO64 3 /* Cybervision64 (S3 Trio64) */ 79 #define FB_ACCEL_NCR_77C32BLT 4 /* RetinaZ3 (NCR 77C32BLT) */ 80 #define FB_ACCEL_S3_VIRGE 5 /* Cybervision64/3D (S3 ViRGE) */ 81 #define FB_ACCEL_ATI_MACH64GX 6 /* ATI Mach 64GX family */ 82 #define FB_ACCEL_DEC_TGA 7 /* DEC 21030 TGA */ 83 #define FB_ACCEL_ATI_MACH64CT 8 /* ATI Mach 64CT family */ 84 #define FB_ACCEL_ATI_MACH64VT 9 /* ATI Mach 64CT family VT class */ 85 #define FB_ACCEL_ATI_MACH64GT 10 /* ATI Mach 64CT family GT class */ 86 #define FB_ACCEL_SUN_CREATOR 11 /* Sun Creator/Creator3D */ 87 #define FB_ACCEL_SUN_CGSIX 12 /* Sun cg6 */ 88 #define FB_ACCEL_SUN_LEO 13 /* Sun leo/zx */ 89 #define FB_ACCEL_IMS_TWINTURBO 14 /* IMS Twin Turbo */ 90 #define FB_ACCEL_3DLABS_PERMEDIA2 15 /* 3Dlabs Permedia 2 */ 91 #define FB_ACCEL_MATROX_MGA2064W 16 /* Matrox MGA2064W (Millenium) */ 92 #define FB_ACCEL_MATROX_MGA1064SG 17 /* Matrox MGA1064SG (Mystique) */ 93 #define FB_ACCEL_MATROX_MGA2164W 18 /* Matrox MGA2164W (Millenium II) */ 94 #define FB_ACCEL_MATROX_MGA2164W_AGP 19 /* Matrox MGA2164W (Millenium II) */ 95 #define FB_ACCEL_MATROX_MGAG100 20 /* Matrox G100 (Productiva G100) */ 96 #define FB_ACCEL_MATROX_MGAG200 21 /* Matrox G200 (Myst, Mill, ...) */ 97 #define FB_ACCEL_SUN_CG14 22 /* Sun cgfourteen */ 98 #define FB_ACCEL_SUN_BWTWO 23 /* Sun bwtwo */ 99 #define FB_ACCEL_SUN_CGTHREE 24 /* Sun cgthree */ 100 #define FB_ACCEL_SUN_TCX 25 /* Sun tcx */ 101 #define FB_ACCEL_MATROX_MGAG400 26 /* Matrox G400 */ 102 #define FB_ACCEL_NV3 27 /* nVidia RIVA 128 */ 103 #define FB_ACCEL_NV4 28 /* nVidia RIVA TNT */ 104 #define FB_ACCEL_NV5 29 /* nVidia RIVA TNT2 */ 105 #define FB_ACCEL_CT_6555x 30 /* C&T 6555x */ 106 #define FB_ACCEL_3DFX_BANSHEE 31 /* 3Dfx Banshee */ 107 #define FB_ACCEL_ATI_RAGE128 32 /* ATI Rage128 family */ 108 #define FB_ACCEL_IGS_CYBER2000 33 /* CyberPro 2000 */ 109 #define FB_ACCEL_IGS_CYBER2010 34 /* CyberPro 2010 */ 110 #define FB_ACCEL_IGS_CYBER5000 35 /* CyberPro 5000 */ 111 #define FB_ACCEL_SIS_GLAMOUR 36 /* SiS 300/630/540 */ 112 #define FB_ACCEL_3DLABS_PERMEDIA3 37 /* 3Dlabs Permedia 3 */ 113 #define FB_ACCEL_ATI_RADEON 38 /* ATI Radeon family */ 114 #define FB_ACCEL_I810 39 /* Intel 810/815 */ 115 #define FB_ACCEL_SIS_GLAMOUR_2 40 /* SiS 315, 650, 740 */ 116 #define FB_ACCEL_SIS_XABRE 41 /* SiS 330 ("Xabre") */ 117 #define FB_ACCEL_I830 42 /* Intel 830M/845G/85x/865G */ 118 #define FB_ACCEL_NV_10 43 /* nVidia Arch 10 */ 119 #define FB_ACCEL_NV_20 44 /* nVidia Arch 20 */ 120 #define FB_ACCEL_NV_30 45 /* nVidia Arch 30 */ 121 #define FB_ACCEL_NV_40 46 /* nVidia Arch 40 */ 122 #define FB_ACCEL_XGI_VOLARI_V 47 /* XGI Volari V3XT, V5, V8 */ 123 #define FB_ACCEL_XGI_VOLARI_Z 48 /* XGI Volari Z7 */ 124 #define FB_ACCEL_OMAP1610 49 /* TI OMAP16xx */ 125 #define FB_ACCEL_TRIDENT_TGUI 50 /* Trident TGUI */ 126 #define FB_ACCEL_TRIDENT_3DIMAGE 51 /* Trident 3DImage */ 127 #define FB_ACCEL_TRIDENT_BLADE3D 52 /* Trident Blade3D */ 128 #define FB_ACCEL_TRIDENT_BLADEXP 53 /* Trident BladeXP */ 129 #define FB_ACCEL_CIRRUS_ALPINE 53 /* Cirrus Logic 543x/544x/5480 */ 130 #define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */ 131 #define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */ 132 #define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */ 133 #define FB_ACCEL_NEOMAGIC_NM2097 93 /* NeoMagic NM2097 */ 134 #define FB_ACCEL_NEOMAGIC_NM2160 94 /* NeoMagic NM2160 */ 135 #define FB_ACCEL_NEOMAGIC_NM2200 95 /* NeoMagic NM2200 */ 136 #define FB_ACCEL_NEOMAGIC_NM2230 96 /* NeoMagic NM2230 */ 137 #define FB_ACCEL_NEOMAGIC_NM2360 97 /* NeoMagic NM2360 */ 138 #define FB_ACCEL_NEOMAGIC_NM2380 98 /* NeoMagic NM2380 */ 139 #define FB_ACCEL_PXA3XX 99 /* PXA3xx */ 140 141 #define FB_ACCEL_SAVAGE4 0x80 /* S3 Savage4 */ 142 #define FB_ACCEL_SAVAGE3D 0x81 /* S3 Savage3D */ 143 #define FB_ACCEL_SAVAGE3D_MV 0x82 /* S3 Savage3D-MV */ 144 #define FB_ACCEL_SAVAGE2000 0x83 /* S3 Savage2000 */ 145 #define FB_ACCEL_SAVAGE_MX_MV 0x84 /* S3 Savage/MX-MV */ 146 #define FB_ACCEL_SAVAGE_MX 0x85 /* S3 Savage/MX */ 147 #define FB_ACCEL_SAVAGE_IX_MV 0x86 /* S3 Savage/IX-MV */ 148 #define FB_ACCEL_SAVAGE_IX 0x87 /* S3 Savage/IX */ 149 #define FB_ACCEL_PROSAVAGE_PM 0x88 /* S3 ProSavage PM133 */ 150 #define FB_ACCEL_PROSAVAGE_KM 0x89 /* S3 ProSavage KM133 */ 151 #define FB_ACCEL_S3TWISTER_P 0x8a /* S3 Twister */ 152 #define FB_ACCEL_S3TWISTER_K 0x8b /* S3 TwisterK */ 153 #define FB_ACCEL_SUPERSAVAGE 0x8c /* S3 Supersavage */ 154 #define FB_ACCEL_PROSAVAGE_DDR 0x8d /* S3 ProSavage DDR */ 155 #define FB_ACCEL_PROSAVAGE_DDRK 0x8e /* S3 ProSavage DDR-K */ 156 157 #define FB_ACCEL_PUV3_UNIGFX 0xa0 /* PKUnity-v3 Unigfx */ 158 159 #define FB_CAP_FOURCC 1 /* Device supports FOURCC-based formats */ 160 161 struct fb_fix_screeninfo { 162 char id[16]; /* identification string eg "TT Builtin" */ 163 unsigned long smem_start; /* Start of frame buffer mem */ 164 /* (physical address) */ 165 __u32 smem_len; /* Length of frame buffer mem */ 166 __u32 type; /* see FB_TYPE_* */ 167 __u32 type_aux; /* Interleave for interleaved Planes */ 168 __u32 visual; /* see FB_VISUAL_* */ 169 __u16 xpanstep; /* zero if no hardware panning */ 170 __u16 ypanstep; /* zero if no hardware panning */ 171 __u16 ywrapstep; /* zero if no hardware ywrap */ 172 __u32 line_length; /* length of a line in bytes */ 173 unsigned long mmio_start; /* Start of Memory Mapped I/O */ 174 /* (physical address) */ 175 __u32 mmio_len; /* Length of Memory Mapped I/O */ 176 __u32 accel; /* Indicate to driver which */ 177 /* specific chip/card we have */ 178 __u16 capabilities; /* see FB_CAP_* */ 179 __u16 reserved[2]; /* Reserved for future compatibility */ 180 }; 181 182 /* Interpretation of offset for color fields: All offsets are from the right, 183 * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you 184 * can use the offset as right argument to <<). A pixel afterwards is a bit 185 * stream and is written to video memory as that unmodified. 186 * 187 * For pseudocolor: offset and length should be the same for all color 188 * components. Offset specifies the position of the least significant bit 189 * of the pallette index in a pixel value. Length indicates the number 190 * of available palette entries (i.e. # of entries = 1 << length). 191 */ 192 struct fb_bitfield { 193 __u32 offset; /* beginning of bitfield */ 194 __u32 length; /* length of bitfield */ 195 __u32 msb_right; /* != 0 : Most significant bit is */ 196 /* right */ 197 }; 198 199 #define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */ 200 #define FB_NONSTD_REV_PIX_IN_B 2 /* order of pixels in each byte is reversed */ 201 202 #define FB_ACTIVATE_NOW 0 /* set values immediately (or vbl)*/ 203 #define FB_ACTIVATE_NXTOPEN 1 /* activate on next open */ 204 #define FB_ACTIVATE_TEST 2 /* don't set, round up impossible */ 205 #define FB_ACTIVATE_MASK 15 206 /* values */ 207 #define FB_ACTIVATE_VBL 16 /* activate values on next vbl */ 208 #define FB_CHANGE_CMAP_VBL 32 /* change colormap on vbl */ 209 #define FB_ACTIVATE_ALL 64 /* change all VCs on this fb */ 210 #define FB_ACTIVATE_FORCE 128 /* force apply even when no change*/ 211 #define FB_ACTIVATE_INV_MODE 256 /* invalidate videomode */ 212 213 #define FB_ACCELF_TEXT 1 /* (OBSOLETE) see fb_info.flags and vc_mode */ 214 215 #define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */ 216 #define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */ 217 #define FB_SYNC_EXT 4 /* external sync */ 218 #define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */ 219 #define FB_SYNC_BROADCAST 16 /* broadcast video timings */ 220 /* vtotal = 144d/288n/576i => PAL */ 221 /* vtotal = 121d/242n/484i => NTSC */ 222 #define FB_SYNC_ON_GREEN 32 /* sync on green */ 223 224 #define FB_VMODE_NONINTERLACED 0 /* non interlaced */ 225 #define FB_VMODE_INTERLACED 1 /* interlaced */ 226 #define FB_VMODE_DOUBLE 2 /* double scan */ 227 #define FB_VMODE_ODD_FLD_FIRST 4 /* interlaced: top line first */ 228 #define FB_VMODE_MASK 255 229 230 #define FB_VMODE_YWRAP 256 /* ywrap instead of panning */ 231 #define FB_VMODE_SMOOTH_XPAN 512 /* smooth xpan possible (internally used) */ 232 #define FB_VMODE_CONUPDATE 512 /* don't update x/yoffset */ 233 234 /* 235 * Display rotation support 236 */ 237 #define FB_ROTATE_UR 0 238 #define FB_ROTATE_CW 1 239 #define FB_ROTATE_UD 2 240 #define FB_ROTATE_CCW 3 241 242 #define PICOS2KHZ(a) (1000000000UL/(a)) 243 #define KHZ2PICOS(a) (1000000000UL/(a)) 244 245 struct fb_var_screeninfo { 246 __u32 xres; /* visible resolution */ 247 __u32 yres; 248 __u32 xres_virtual; /* virtual resolution */ 249 __u32 yres_virtual; 250 __u32 xoffset; /* offset from virtual to visible */ 251 __u32 yoffset; /* resolution */ 252 253 __u32 bits_per_pixel; /* guess what */ 254 __u32 grayscale; /* 0 = color, 1 = grayscale, */ 255 /* >1 = FOURCC */ 256 struct fb_bitfield red; /* bitfield in fb mem if true color, */ 257 struct fb_bitfield green; /* else only length is significant */ 258 struct fb_bitfield blue; 259 struct fb_bitfield transp; /* transparency */ 260 261 __u32 nonstd; /* != 0 Non standard pixel format */ 262 263 __u32 activate; /* see FB_ACTIVATE_* */ 264 265 __u32 height; /* height of picture in mm */ 266 __u32 width; /* width of picture in mm */ 267 268 __u32 accel_flags; /* (OBSOLETE) see fb_info.flags */ 269 270 /* Timing: All values in pixclocks, except pixclock (of course) */ 271 __u32 pixclock; /* pixel clock in ps (pico seconds) */ 272 __u32 left_margin; /* time from sync to picture */ 273 __u32 right_margin; /* time from picture to sync */ 274 __u32 upper_margin; /* time from sync to picture */ 275 __u32 lower_margin; 276 __u32 hsync_len; /* length of horizontal sync */ 277 __u32 vsync_len; /* length of vertical sync */ 278 __u32 sync; /* see FB_SYNC_* */ 279 __u32 vmode; /* see FB_VMODE_* */ 280 __u32 rotate; /* angle we rotate counter clockwise */ 281 __u32 colorspace; /* colorspace for FOURCC-based modes */ 282 __u32 reserved[4]; /* Reserved for future compatibility */ 283 }; 284 285 struct fb_cmap { 286 __u32 start; /* First entry */ 287 __u32 len; /* Number of entries */ 288 __u16 *red; /* Red values */ 289 __u16 *green; 290 __u16 *blue; 291 __u16 *transp; /* transparency, can be NULL */ 292 }; 293 294 struct fb_con2fbmap { 295 __u32 console; 296 __u32 framebuffer; 297 }; 298 299 /* VESA Blanking Levels */ 300 #define VESA_NO_BLANKING 0 301 #define VESA_VSYNC_SUSPEND 1 302 #define VESA_HSYNC_SUSPEND 2 303 #define VESA_POWERDOWN 3 304 305 306 enum { 307 /* screen: unblanked, hsync: on, vsync: on */ 308 FB_BLANK_UNBLANK = VESA_NO_BLANKING, 309 310 /* screen: blanked, hsync: on, vsync: on */ 311 FB_BLANK_NORMAL = VESA_NO_BLANKING + 1, 312 313 /* screen: blanked, hsync: on, vsync: off */ 314 FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1, 315 316 /* screen: blanked, hsync: off, vsync: on */ 317 FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1, 318 319 /* screen: blanked, hsync: off, vsync: off */ 320 FB_BLANK_POWERDOWN = VESA_POWERDOWN + 1 321 }; 322 323 #define FB_VBLANK_VBLANKING 0x001 /* currently in a vertical blank */ 324 #define FB_VBLANK_HBLANKING 0x002 /* currently in a horizontal blank */ 325 #define FB_VBLANK_HAVE_VBLANK 0x004 /* vertical blanks can be detected */ 326 #define FB_VBLANK_HAVE_HBLANK 0x008 /* horizontal blanks can be detected */ 327 #define FB_VBLANK_HAVE_COUNT 0x010 /* global retrace counter is available */ 328 #define FB_VBLANK_HAVE_VCOUNT 0x020 /* the vcount field is valid */ 329 #define FB_VBLANK_HAVE_HCOUNT 0x040 /* the hcount field is valid */ 330 #define FB_VBLANK_VSYNCING 0x080 /* currently in a vsync */ 331 #define FB_VBLANK_HAVE_VSYNC 0x100 /* verical syncs can be detected */ 332 333 struct fb_vblank { 334 __u32 flags; /* FB_VBLANK flags */ 335 __u32 count; /* counter of retraces since boot */ 336 __u32 vcount; /* current scanline position */ 337 __u32 hcount; /* current scandot position */ 338 __u32 reserved[4]; /* reserved for future compatibility */ 339 }; 340 341 /* Internal HW accel */ 342 #define ROP_COPY 0 343 #define ROP_XOR 1 344 345 struct fb_copyarea { 346 __u32 dx; 347 __u32 dy; 348 __u32 width; 349 __u32 height; 350 __u32 sx; 351 __u32 sy; 352 }; 353 354 struct fb_fillrect { 355 __u32 dx; /* screen-relative */ 356 __u32 dy; 357 __u32 width; 358 __u32 height; 359 __u32 color; 360 __u32 rop; 361 }; 362 363 struct fb_image { 364 __u32 dx; /* Where to place image */ 365 __u32 dy; 366 __u32 width; /* Size of image */ 367 __u32 height; 368 __u32 fg_color; /* Only used when a mono bitmap */ 369 __u32 bg_color; 370 __u8 depth; /* Depth of the image */ 371 const char *data; /* Pointer to image data */ 372 struct fb_cmap cmap; /* color map info */ 373 }; 374 375 /* 376 * hardware cursor control 377 */ 378 379 #define FB_CUR_SETIMAGE 0x01 380 #define FB_CUR_SETPOS 0x02 381 #define FB_CUR_SETHOT 0x04 382 #define FB_CUR_SETCMAP 0x08 383 #define FB_CUR_SETSHAPE 0x10 384 #define FB_CUR_SETSIZE 0x20 385 #define FB_CUR_SETALL 0xFF 386 387 struct fbcurpos { 388 __u16 x, y; 389 }; 390 391 struct fb_cursor { 392 __u16 set; /* what to set */ 393 __u16 enable; /* cursor on/off */ 394 __u16 rop; /* bitop operation */ 395 const char *mask; /* cursor mask bits */ 396 struct fbcurpos hot; /* cursor hot spot */ 397 struct fb_image image; /* Cursor image */ 398 }; 399 400 #ifdef CONFIG_FB_BACKLIGHT 401 /* Settings for the generic backlight code */ 402 #define FB_BACKLIGHT_LEVELS 128 403 #define FB_BACKLIGHT_MAX 0xFF 404 #endif 405 406 #ifdef __KERNEL__ 407 408 #include <linux/fs.h> 409 #include <linux/init.h> 410 #include <linux/workqueue.h> 411 #include <linux/notifier.h> 412 #include <linux/list.h> 413 #include <linux/backlight.h> 414 #include <linux/slab.h> 415 #include <asm/io.h> 416 417 struct vm_area_struct; 418 struct fb_info; 419 struct device; 420 struct file; 421 422 /* Definitions below are used in the parsed monitor specs */ 423 #define FB_DPMS_ACTIVE_OFF 1 424 #define FB_DPMS_SUSPEND 2 425 #define FB_DPMS_STANDBY 4 426 427 #define FB_DISP_DDI 1 428 #define FB_DISP_ANA_700_300 2 429 #define FB_DISP_ANA_714_286 4 430 #define FB_DISP_ANA_1000_400 8 431 #define FB_DISP_ANA_700_000 16 432 433 #define FB_DISP_MONO 32 434 #define FB_DISP_RGB 64 435 #define FB_DISP_MULTI 128 436 #define FB_DISP_UNKNOWN 256 437 438 #define FB_SIGNAL_NONE 0 439 #define FB_SIGNAL_BLANK_BLANK 1 440 #define FB_SIGNAL_SEPARATE 2 441 #define FB_SIGNAL_COMPOSITE 4 442 #define FB_SIGNAL_SYNC_ON_GREEN 8 443 #define FB_SIGNAL_SERRATION_ON 16 444 445 #define FB_MISC_PRIM_COLOR 1 446 #define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */ 447 struct fb_chroma { 448 __u32 redx; /* in fraction of 1024 */ 449 __u32 greenx; 450 __u32 bluex; 451 __u32 whitex; 452 __u32 redy; 453 __u32 greeny; 454 __u32 bluey; 455 __u32 whitey; 456 }; 457 458 struct fb_monspecs { 459 struct fb_chroma chroma; 460 struct fb_videomode *modedb; /* mode database */ 461 __u8 manufacturer[4]; /* Manufacturer */ 462 __u8 monitor[14]; /* Monitor String */ 463 __u8 serial_no[14]; /* Serial Number */ 464 __u8 ascii[14]; /* ? */ 465 __u32 modedb_len; /* mode database length */ 466 __u32 model; /* Monitor Model */ 467 __u32 serial; /* Serial Number - Integer */ 468 __u32 year; /* Year manufactured */ 469 __u32 week; /* Week Manufactured */ 470 __u32 hfmin; /* hfreq lower limit (Hz) */ 471 __u32 hfmax; /* hfreq upper limit (Hz) */ 472 __u32 dclkmin; /* pixelclock lower limit (Hz) */ 473 __u32 dclkmax; /* pixelclock upper limit (Hz) */ 474 __u16 input; /* display type - see FB_DISP_* */ 475 __u16 dpms; /* DPMS support - see FB_DPMS_ */ 476 __u16 signal; /* Signal Type - see FB_SIGNAL_* */ 477 __u16 vfmin; /* vfreq lower limit (Hz) */ 478 __u16 vfmax; /* vfreq upper limit (Hz) */ 479 __u16 gamma; /* Gamma - in fractions of 100 */ 480 __u16 gtf : 1; /* supports GTF */ 481 __u16 misc; /* Misc flags - see FB_MISC_* */ 482 __u8 version; /* EDID version... */ 483 __u8 revision; /* ...and revision */ 484 __u8 max_x; /* Maximum horizontal size (cm) */ 485 __u8 max_y; /* Maximum vertical size (cm) */ 486 }; 487 488 struct fb_cmap_user { 489 __u32 start; /* First entry */ 490 __u32 len; /* Number of entries */ 491 __u16 __user *red; /* Red values */ 492 __u16 __user *green; 493 __u16 __user *blue; 494 __u16 __user *transp; /* transparency, can be NULL */ 495 }; 496 497 struct fb_image_user { 498 __u32 dx; /* Where to place image */ 499 __u32 dy; 500 __u32 width; /* Size of image */ 501 __u32 height; 502 __u32 fg_color; /* Only used when a mono bitmap */ 503 __u32 bg_color; 504 __u8 depth; /* Depth of the image */ 505 const char __user *data; /* Pointer to image data */ 506 struct fb_cmap_user cmap; /* color map info */ 507 }; 508 509 struct fb_cursor_user { 510 __u16 set; /* what to set */ 511 __u16 enable; /* cursor on/off */ 512 __u16 rop; /* bitop operation */ 513 const char __user *mask; /* cursor mask bits */ 514 struct fbcurpos hot; /* cursor hot spot */ 515 struct fb_image_user image; /* Cursor image */ 516 }; 517 518 /* 519 * Register/unregister for framebuffer events 520 */ 521 522 /* The resolution of the passed in fb_info about to change */ 523 #define FB_EVENT_MODE_CHANGE 0x01 524 /* The display on this fb_info is beeing suspended, no access to the 525 * framebuffer is allowed any more after that call returns 526 */ 527 #define FB_EVENT_SUSPEND 0x02 528 /* The display on this fb_info was resumed, you can restore the display 529 * if you own it 530 */ 531 #define FB_EVENT_RESUME 0x03 532 /* An entry from the modelist was removed */ 533 #define FB_EVENT_MODE_DELETE 0x04 534 /* A driver registered itself */ 535 #define FB_EVENT_FB_REGISTERED 0x05 536 /* A driver unregistered itself */ 537 #define FB_EVENT_FB_UNREGISTERED 0x06 538 /* CONSOLE-SPECIFIC: get console to framebuffer mapping */ 539 #define FB_EVENT_GET_CONSOLE_MAP 0x07 540 /* CONSOLE-SPECIFIC: set console to framebuffer mapping */ 541 #define FB_EVENT_SET_CONSOLE_MAP 0x08 542 /* A hardware display blank change occurred */ 543 #define FB_EVENT_BLANK 0x09 544 /* Private modelist is to be replaced */ 545 #define FB_EVENT_NEW_MODELIST 0x0A 546 /* The resolution of the passed in fb_info about to change and 547 all vc's should be changed */ 548 #define FB_EVENT_MODE_CHANGE_ALL 0x0B 549 /* A software display blank change occurred */ 550 #define FB_EVENT_CONBLANK 0x0C 551 /* Get drawing requirements */ 552 #define FB_EVENT_GET_REQ 0x0D 553 /* Unbind from the console if possible */ 554 #define FB_EVENT_FB_UNBIND 0x0E 555 /* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */ 556 #define FB_EVENT_REMAP_ALL_CONSOLE 0x0F 557 /* A hardware display blank early change occured */ 558 #define FB_EARLY_EVENT_BLANK 0x10 559 /* A hardware display blank revert early change occured */ 560 #define FB_R_EARLY_EVENT_BLANK 0x11 561 562 struct fb_event { 563 struct fb_info *info; 564 void *data; 565 }; 566 567 struct fb_blit_caps { 568 u32 x; 569 u32 y; 570 u32 len; 571 u32 flags; 572 }; 573 574 extern int fb_register_client(struct notifier_block *nb); 575 extern int fb_unregister_client(struct notifier_block *nb); 576 extern int fb_notifier_call_chain(unsigned long val, void *v); 577 /* 578 * Pixmap structure definition 579 * 580 * The purpose of this structure is to translate data 581 * from the hardware independent format of fbdev to what 582 * format the hardware needs. 583 */ 584 585 #define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */ 586 #define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */ 587 #define FB_PIXMAP_IO 4 /* memory is iomapped */ 588 #define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */ 589 590 struct fb_pixmap { 591 u8 *addr; /* pointer to memory */ 592 u32 size; /* size of buffer in bytes */ 593 u32 offset; /* current offset to buffer */ 594 u32 buf_align; /* byte alignment of each bitmap */ 595 u32 scan_align; /* alignment per scanline */ 596 u32 access_align; /* alignment per read/write (bits) */ 597 u32 flags; /* see FB_PIXMAP_* */ 598 u32 blit_x; /* supported bit block dimensions (1-32)*/ 599 u32 blit_y; /* Format: blit_x = 1 << (width - 1) */ 600 /* blit_y = 1 << (height - 1) */ 601 /* if 0, will be set to 0xffffffff (all)*/ 602 /* access methods */ 603 void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size); 604 void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size); 605 }; 606 607 #ifdef CONFIG_FB_DEFERRED_IO 608 struct fb_deferred_io { 609 /* delay between mkwrite and deferred handler */ 610 unsigned long delay; 611 struct mutex lock; /* mutex that protects the page list */ 612 struct list_head pagelist; /* list of touched pages */ 613 /* callback */ 614 void (*deferred_io)(struct fb_info *info, struct list_head *pagelist); 615 }; 616 #endif 617 618 /* 619 * Frame buffer operations 620 * 621 * LOCKING NOTE: those functions must _ALL_ be called with the console 622 * semaphore held, this is the only suitable locking mechanism we have 623 * in 2.6. Some may be called at interrupt time at this point though. 624 * 625 * The exception to this is the debug related hooks. Putting the fb 626 * into a debug state (e.g. flipping to the kernel console) and restoring 627 * it must be done in a lock-free manner, so low level drivers should 628 * keep track of the initial console (if applicable) and may need to 629 * perform direct, unlocked hardware writes in these hooks. 630 */ 631 632 struct fb_ops { 633 /* open/release and usage marking */ 634 struct module *owner; 635 int (*fb_open)(struct fb_info *info, int user); 636 int (*fb_release)(struct fb_info *info, int user); 637 638 /* For framebuffers with strange non linear layouts or that do not 639 * work with normal memory mapped access 640 */ 641 ssize_t (*fb_read)(struct fb_info *info, char __user *buf, 642 size_t count, loff_t *ppos); 643 ssize_t (*fb_write)(struct fb_info *info, const char __user *buf, 644 size_t count, loff_t *ppos); 645 646 /* checks var and eventually tweaks it to something supported, 647 * DO NOT MODIFY PAR */ 648 int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info); 649 650 /* set the video mode according to info->var */ 651 int (*fb_set_par)(struct fb_info *info); 652 653 /* set color register */ 654 int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green, 655 unsigned blue, unsigned transp, struct fb_info *info); 656 657 /* set color registers in batch */ 658 int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info); 659 660 /* blank display */ 661 int (*fb_blank)(int blank, struct fb_info *info); 662 663 /* pan display */ 664 int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info); 665 666 /* Draws a rectangle */ 667 void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect); 668 /* Copy data from area to another */ 669 void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region); 670 /* Draws a image to the display */ 671 void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image); 672 673 /* Draws cursor */ 674 int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor); 675 676 /* Rotates the display */ 677 void (*fb_rotate)(struct fb_info *info, int angle); 678 679 /* wait for blit idle, optional */ 680 int (*fb_sync)(struct fb_info *info); 681 682 /* perform fb specific ioctl (optional) */ 683 int (*fb_ioctl)(struct fb_info *info, unsigned int cmd, 684 unsigned long arg); 685 686 /* Handle 32bit compat ioctl (optional) */ 687 int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd, 688 unsigned long arg); 689 690 /* perform fb specific mmap */ 691 int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma); 692 693 /* get capability given var */ 694 void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps, 695 struct fb_var_screeninfo *var); 696 697 /* teardown any resources to do with this framebuffer */ 698 void (*fb_destroy)(struct fb_info *info); 699 700 /* called at KDB enter and leave time to prepare the console */ 701 int (*fb_debug_enter)(struct fb_info *info); 702 int (*fb_debug_leave)(struct fb_info *info); 703 }; 704 705 #ifdef CONFIG_FB_TILEBLITTING 706 #define FB_TILE_CURSOR_NONE 0 707 #define FB_TILE_CURSOR_UNDERLINE 1 708 #define FB_TILE_CURSOR_LOWER_THIRD 2 709 #define FB_TILE_CURSOR_LOWER_HALF 3 710 #define FB_TILE_CURSOR_TWO_THIRDS 4 711 #define FB_TILE_CURSOR_BLOCK 5 712 713 struct fb_tilemap { 714 __u32 width; /* width of each tile in pixels */ 715 __u32 height; /* height of each tile in scanlines */ 716 __u32 depth; /* color depth of each tile */ 717 __u32 length; /* number of tiles in the map */ 718 const __u8 *data; /* actual tile map: a bitmap array, packed 719 to the nearest byte */ 720 }; 721 722 struct fb_tilerect { 723 __u32 sx; /* origin in the x-axis */ 724 __u32 sy; /* origin in the y-axis */ 725 __u32 width; /* number of tiles in the x-axis */ 726 __u32 height; /* number of tiles in the y-axis */ 727 __u32 index; /* what tile to use: index to tile map */ 728 __u32 fg; /* foreground color */ 729 __u32 bg; /* background color */ 730 __u32 rop; /* raster operation */ 731 }; 732 733 struct fb_tilearea { 734 __u32 sx; /* source origin in the x-axis */ 735 __u32 sy; /* source origin in the y-axis */ 736 __u32 dx; /* destination origin in the x-axis */ 737 __u32 dy; /* destination origin in the y-axis */ 738 __u32 width; /* number of tiles in the x-axis */ 739 __u32 height; /* number of tiles in the y-axis */ 740 }; 741 742 struct fb_tileblit { 743 __u32 sx; /* origin in the x-axis */ 744 __u32 sy; /* origin in the y-axis */ 745 __u32 width; /* number of tiles in the x-axis */ 746 __u32 height; /* number of tiles in the y-axis */ 747 __u32 fg; /* foreground color */ 748 __u32 bg; /* background color */ 749 __u32 length; /* number of tiles to draw */ 750 __u32 *indices; /* array of indices to tile map */ 751 }; 752 753 struct fb_tilecursor { 754 __u32 sx; /* cursor position in the x-axis */ 755 __u32 sy; /* cursor position in the y-axis */ 756 __u32 mode; /* 0 = erase, 1 = draw */ 757 __u32 shape; /* see FB_TILE_CURSOR_* */ 758 __u32 fg; /* foreground color */ 759 __u32 bg; /* background color */ 760 }; 761 762 struct fb_tile_ops { 763 /* set tile characteristics */ 764 void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map); 765 766 /* all dimensions from hereon are in terms of tiles */ 767 768 /* move a rectangular region of tiles from one area to another*/ 769 void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area); 770 /* fill a rectangular region with a tile */ 771 void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect); 772 /* copy an array of tiles */ 773 void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit); 774 /* cursor */ 775 void (*fb_tilecursor)(struct fb_info *info, 776 struct fb_tilecursor *cursor); 777 /* get maximum length of the tile map */ 778 int (*fb_get_tilemax)(struct fb_info *info); 779 }; 780 #endif /* CONFIG_FB_TILEBLITTING */ 781 782 /* FBINFO_* = fb_info.flags bit flags */ 783 #define FBINFO_MODULE 0x0001 /* Low-level driver is a module */ 784 #define FBINFO_HWACCEL_DISABLED 0x0002 785 /* When FBINFO_HWACCEL_DISABLED is set: 786 * Hardware acceleration is turned off. Software implementations 787 * of required functions (copyarea(), fillrect(), and imageblit()) 788 * takes over; acceleration engine should be in a quiescent state */ 789 790 /* hints */ 791 #define FBINFO_VIRTFB 0x0004 /* FB is System RAM, not device. */ 792 #define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */ 793 #define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */ 794 795 /* hardware supported ops */ 796 /* semantics: when a bit is set, it indicates that the operation is 797 * accelerated by hardware. 798 * required functions will still work even if the bit is not set. 799 * optional functions may not even exist if the flag bit is not set. 800 */ 801 #define FBINFO_HWACCEL_NONE 0x0000 802 #define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */ 803 #define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */ 804 #define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */ 805 #define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */ 806 #define FBINFO_HWACCEL_XPAN 0x1000 /* optional */ 807 #define FBINFO_HWACCEL_YPAN 0x2000 /* optional */ 808 #define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */ 809 810 #define FBINFO_MISC_USEREVENT 0x10000 /* event request 811 from userspace */ 812 #define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */ 813 814 /* A driver may set this flag to indicate that it does want a set_par to be 815 * called every time when fbcon_switch is executed. The advantage is that with 816 * this flag set you can really be sure that set_par is always called before 817 * any of the functions dependent on the correct hardware state or altering 818 * that state, even if you are using some broken X releases. The disadvantage 819 * is that it introduces unwanted delays to every console switch if set_par 820 * is slow. It is a good idea to try this flag in the drivers initialization 821 * code whenever there is a bug report related to switching between X and the 822 * framebuffer console. 823 */ 824 #define FBINFO_MISC_ALWAYS_SETPAR 0x40000 825 826 /* where the fb is a firmware driver, and can be replaced with a proper one */ 827 #define FBINFO_MISC_FIRMWARE 0x80000 828 /* 829 * Host and GPU endianness differ. 830 */ 831 #define FBINFO_FOREIGN_ENDIAN 0x100000 832 /* 833 * Big endian math. This is the same flags as above, but with different 834 * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag 835 * and host endianness. Drivers should not use this flag. 836 */ 837 #define FBINFO_BE_MATH 0x100000 838 839 /* report to the VT layer that this fb driver can accept forced console 840 output like oopses */ 841 #define FBINFO_CAN_FORCE_OUTPUT 0x200000 842 843 struct fb_info { 844 atomic_t count; 845 int node; 846 int flags; 847 struct mutex lock; /* Lock for open/release/ioctl funcs */ 848 struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */ 849 struct fb_var_screeninfo var; /* Current var */ 850 struct fb_fix_screeninfo fix; /* Current fix */ 851 struct fb_monspecs monspecs; /* Current Monitor specs */ 852 struct work_struct queue; /* Framebuffer event queue */ 853 struct fb_pixmap pixmap; /* Image hardware mapper */ 854 struct fb_pixmap sprite; /* Cursor hardware mapper */ 855 struct fb_cmap cmap; /* Current cmap */ 856 struct list_head modelist; /* mode list */ 857 struct fb_videomode *mode; /* current mode */ 858 859 #ifdef CONFIG_FB_BACKLIGHT 860 /* assigned backlight device */ 861 /* set before framebuffer registration, 862 remove after unregister */ 863 struct backlight_device *bl_dev; 864 865 /* Backlight level curve */ 866 struct mutex bl_curve_mutex; 867 u8 bl_curve[FB_BACKLIGHT_LEVELS]; 868 #endif 869 #ifdef CONFIG_FB_DEFERRED_IO 870 struct delayed_work deferred_work; 871 struct fb_deferred_io *fbdefio; 872 #endif 873 874 struct fb_ops *fbops; 875 struct device *device; /* This is the parent */ 876 struct device *dev; /* This is this fb device */ 877 int class_flag; /* private sysfs flags */ 878 #ifdef CONFIG_FB_TILEBLITTING 879 struct fb_tile_ops *tileops; /* Tile Blitting */ 880 #endif 881 char __iomem *screen_base; /* Virtual address */ 882 unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */ 883 void *pseudo_palette; /* Fake palette of 16 colors */ 884 #define FBINFO_STATE_RUNNING 0 885 #define FBINFO_STATE_SUSPENDED 1 886 u32 state; /* Hardware state i.e suspend */ 887 void *fbcon_par; /* fbcon use-only private area */ 888 /* From here on everything is device dependent */ 889 void *par; 890 /* we need the PCI or similar aperture base/size not 891 smem_start/size as smem_start may just be an object 892 allocated inside the aperture so may not actually overlap */ 893 struct apertures_struct { 894 unsigned int count; 895 struct aperture { 896 resource_size_t base; 897 resource_size_t size; 898 } ranges[0]; 899 } *apertures; 900 }; 901 902 static inline struct apertures_struct *alloc_apertures(unsigned int max_num) { 903 struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct) 904 + max_num * sizeof(struct aperture), GFP_KERNEL); 905 if (!a) 906 return NULL; 907 a->count = max_num; 908 return a; 909 } 910 911 #ifdef MODULE 912 #define FBINFO_DEFAULT FBINFO_MODULE 913 #else 914 #define FBINFO_DEFAULT 0 915 #endif 916 917 // This will go away 918 #define FBINFO_FLAG_MODULE FBINFO_MODULE 919 #define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT 920 921 /* This will go away 922 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags 923 * when it wants to turn the acceleration engine on. This is 924 * really a separate operation, and should be modified via sysfs. 925 * But for now, we leave it broken with the following define 926 */ 927 #define STUPID_ACCELF_TEXT_SHIT 928 929 // This will go away 930 #if defined(__sparc__) 931 932 /* We map all of our framebuffers such that big-endian accesses 933 * are what we want, so the following is sufficient. 934 */ 935 936 // This will go away 937 #define fb_readb sbus_readb 938 #define fb_readw sbus_readw 939 #define fb_readl sbus_readl 940 #define fb_readq sbus_readq 941 #define fb_writeb sbus_writeb 942 #define fb_writew sbus_writew 943 #define fb_writel sbus_writel 944 #define fb_writeq sbus_writeq 945 #define fb_memset sbus_memset_io 946 #define fb_memcpy_fromfb sbus_memcpy_fromio 947 #define fb_memcpy_tofb sbus_memcpy_toio 948 949 #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__) 950 951 #define fb_readb __raw_readb 952 #define fb_readw __raw_readw 953 #define fb_readl __raw_readl 954 #define fb_readq __raw_readq 955 #define fb_writeb __raw_writeb 956 #define fb_writew __raw_writew 957 #define fb_writel __raw_writel 958 #define fb_writeq __raw_writeq 959 #define fb_memset memset_io 960 #define fb_memcpy_fromfb memcpy_fromio 961 #define fb_memcpy_tofb memcpy_toio 962 963 #else 964 965 #define fb_readb(addr) (*(volatile u8 *) (addr)) 966 #define fb_readw(addr) (*(volatile u16 *) (addr)) 967 #define fb_readl(addr) (*(volatile u32 *) (addr)) 968 #define fb_readq(addr) (*(volatile u64 *) (addr)) 969 #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b)) 970 #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b)) 971 #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b)) 972 #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b)) 973 #define fb_memset memset 974 #define fb_memcpy_fromfb memcpy 975 #define fb_memcpy_tofb memcpy 976 977 #endif 978 979 #define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0) 980 #define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \ 981 (val) << (bits)) 982 #define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \ 983 (val) >> (bits)) 984 985 /* 986 * `Generic' versions of the frame buffer device operations 987 */ 988 989 extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var); 990 extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var); 991 extern int fb_blank(struct fb_info *info, int blank); 992 extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect); 993 extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area); 994 extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image); 995 /* 996 * Drawing operations where framebuffer is in system RAM 997 */ 998 extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect); 999 extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area); 1000 extern void sys_imageblit(struct fb_info *info, const struct fb_image *image); 1001 extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf, 1002 size_t count, loff_t *ppos); 1003 extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf, 1004 size_t count, loff_t *ppos); 1005 1006 /* drivers/video/fbmem.c */ 1007 extern int register_framebuffer(struct fb_info *fb_info); 1008 extern int unregister_framebuffer(struct fb_info *fb_info); 1009 extern int unlink_framebuffer(struct fb_info *fb_info); 1010 extern void remove_conflicting_framebuffers(struct apertures_struct *a, 1011 const char *name, bool primary); 1012 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate); 1013 extern int fb_show_logo(struct fb_info *fb_info, int rotate); 1014 extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size); 1015 extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx, 1016 u32 height, u32 shift_high, u32 shift_low, u32 mod); 1017 extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height); 1018 extern void fb_set_suspend(struct fb_info *info, int state); 1019 extern int fb_get_color_depth(struct fb_var_screeninfo *var, 1020 struct fb_fix_screeninfo *fix); 1021 extern int fb_get_options(char *name, char **option); 1022 extern int fb_new_modelist(struct fb_info *info); 1023 1024 extern struct fb_info *registered_fb[FB_MAX]; 1025 extern int num_registered_fb; 1026 extern struct class *fb_class; 1027 1028 extern int lock_fb_info(struct fb_info *info); 1029 1030 static inline void unlock_fb_info(struct fb_info *info) 1031 { 1032 mutex_unlock(&info->lock); 1033 } 1034 1035 static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, 1036 u8 *src, u32 s_pitch, u32 height) 1037 { 1038 int i, j; 1039 1040 d_pitch -= s_pitch; 1041 1042 for (i = height; i--; ) { 1043 /* s_pitch is a few bytes at the most, memcpy is suboptimal */ 1044 for (j = 0; j < s_pitch; j++) 1045 *dst++ = *src++; 1046 dst += d_pitch; 1047 } 1048 } 1049 1050 /* drivers/video/fb_defio.c */ 1051 extern void fb_deferred_io_init(struct fb_info *info); 1052 extern void fb_deferred_io_open(struct fb_info *info, 1053 struct inode *inode, 1054 struct file *file); 1055 extern void fb_deferred_io_cleanup(struct fb_info *info); 1056 extern int fb_deferred_io_fsync(struct file *file, loff_t start, 1057 loff_t end, int datasync); 1058 1059 static inline bool fb_be_math(struct fb_info *info) 1060 { 1061 #ifdef CONFIG_FB_FOREIGN_ENDIAN 1062 #if defined(CONFIG_FB_BOTH_ENDIAN) 1063 return info->flags & FBINFO_BE_MATH; 1064 #elif defined(CONFIG_FB_BIG_ENDIAN) 1065 return true; 1066 #elif defined(CONFIG_FB_LITTLE_ENDIAN) 1067 return false; 1068 #endif /* CONFIG_FB_BOTH_ENDIAN */ 1069 #else 1070 #ifdef __BIG_ENDIAN 1071 return true; 1072 #else 1073 return false; 1074 #endif /* __BIG_ENDIAN */ 1075 #endif /* CONFIG_FB_FOREIGN_ENDIAN */ 1076 } 1077 1078 /* drivers/video/fbsysfs.c */ 1079 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev); 1080 extern void framebuffer_release(struct fb_info *info); 1081 extern int fb_init_device(struct fb_info *fb_info); 1082 extern void fb_cleanup_device(struct fb_info *head); 1083 extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max); 1084 1085 /* drivers/video/fbmon.c */ 1086 #define FB_MAXTIMINGS 0 1087 #define FB_VSYNCTIMINGS 1 1088 #define FB_HSYNCTIMINGS 2 1089 #define FB_DCLKTIMINGS 3 1090 #define FB_IGNOREMON 0x100 1091 1092 #define FB_MODE_IS_UNKNOWN 0 1093 #define FB_MODE_IS_DETAILED 1 1094 #define FB_MODE_IS_STANDARD 2 1095 #define FB_MODE_IS_VESA 4 1096 #define FB_MODE_IS_CALCULATED 8 1097 #define FB_MODE_IS_FIRST 16 1098 #define FB_MODE_IS_FROM_VAR 32 1099 1100 extern int fbmon_dpms(const struct fb_info *fb_info); 1101 extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var, 1102 struct fb_info *info); 1103 extern int fb_validate_mode(const struct fb_var_screeninfo *var, 1104 struct fb_info *info); 1105 extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var); 1106 extern const unsigned char *fb_firmware_edid(struct device *device); 1107 extern void fb_edid_to_monspecs(unsigned char *edid, 1108 struct fb_monspecs *specs); 1109 extern void fb_edid_add_monspecs(unsigned char *edid, 1110 struct fb_monspecs *specs); 1111 extern void fb_destroy_modedb(struct fb_videomode *modedb); 1112 extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb); 1113 extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter); 1114 1115 /* drivers/video/modedb.c */ 1116 #define VESA_MODEDB_SIZE 34 1117 extern void fb_var_to_videomode(struct fb_videomode *mode, 1118 const struct fb_var_screeninfo *var); 1119 extern void fb_videomode_to_var(struct fb_var_screeninfo *var, 1120 const struct fb_videomode *mode); 1121 extern int fb_mode_is_equal(const struct fb_videomode *mode1, 1122 const struct fb_videomode *mode2); 1123 extern int fb_add_videomode(const struct fb_videomode *mode, 1124 struct list_head *head); 1125 extern void fb_delete_videomode(const struct fb_videomode *mode, 1126 struct list_head *head); 1127 extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var, 1128 struct list_head *head); 1129 extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var, 1130 struct list_head *head); 1131 extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode, 1132 struct list_head *head); 1133 extern void fb_destroy_modelist(struct list_head *head); 1134 extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num, 1135 struct list_head *head); 1136 extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs, 1137 struct list_head *head); 1138 1139 /* drivers/video/fbcmap.c */ 1140 extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp); 1141 extern int fb_alloc_cmap_gfp(struct fb_cmap *cmap, int len, int transp, gfp_t flags); 1142 extern void fb_dealloc_cmap(struct fb_cmap *cmap); 1143 extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to); 1144 extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to); 1145 extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info); 1146 extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info); 1147 extern const struct fb_cmap *fb_default_cmap(int len); 1148 extern void fb_invert_cmaps(void); 1149 1150 struct fb_videomode { 1151 const char *name; /* optional */ 1152 u32 refresh; /* optional */ 1153 u32 xres; 1154 u32 yres; 1155 u32 pixclock; 1156 u32 left_margin; 1157 u32 right_margin; 1158 u32 upper_margin; 1159 u32 lower_margin; 1160 u32 hsync_len; 1161 u32 vsync_len; 1162 u32 sync; 1163 u32 vmode; 1164 u32 flag; 1165 }; 1166 1167 extern const char *fb_mode_option; 1168 extern const struct fb_videomode vesa_modes[]; 1169 extern const struct fb_videomode cea_modes[64]; 1170 1171 struct fb_modelist { 1172 struct list_head list; 1173 struct fb_videomode mode; 1174 }; 1175 1176 extern int fb_find_mode(struct fb_var_screeninfo *var, 1177 struct fb_info *info, const char *mode_option, 1178 const struct fb_videomode *db, 1179 unsigned int dbsize, 1180 const struct fb_videomode *default_mode, 1181 unsigned int default_bpp); 1182 1183 #endif /* __KERNEL__ */ 1184 1185 #endif /* _LINUX_FB_H */ 1186