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 #define FB_FLAG_RATIO_4_3 64 235 #define FB_FLAG_RATIO_16_9 128 236 #define FB_FLAG_PIXEL_REPEAT 256 237 #define FB_FLAG_PREFERRED 512 238 #define FB_FLAG_HW_CAPABLE 1024 239 240 /* 241 * Display rotation support 242 */ 243 #define FB_ROTATE_UR 0 244 #define FB_ROTATE_CW 1 245 #define FB_ROTATE_UD 2 246 #define FB_ROTATE_CCW 3 247 248 #define PICOS2KHZ(a) (1000000000UL/(a)) 249 #define KHZ2PICOS(a) (1000000000UL/(a)) 250 251 struct fb_var_screeninfo { 252 __u32 xres; /* visible resolution */ 253 __u32 yres; 254 __u32 xres_virtual; /* virtual resolution */ 255 __u32 yres_virtual; 256 __u32 xoffset; /* offset from virtual to visible */ 257 __u32 yoffset; /* resolution */ 258 259 __u32 bits_per_pixel; /* guess what */ 260 __u32 grayscale; /* 0 = color, 1 = grayscale, */ 261 /* >1 = FOURCC */ 262 struct fb_bitfield red; /* bitfield in fb mem if true color, */ 263 struct fb_bitfield green; /* else only length is significant */ 264 struct fb_bitfield blue; 265 struct fb_bitfield transp; /* transparency */ 266 267 __u32 nonstd; /* != 0 Non standard pixel format */ 268 269 __u32 activate; /* see FB_ACTIVATE_* */ 270 271 __u32 height; /* height of picture in mm */ 272 __u32 width; /* width of picture in mm */ 273 274 __u32 accel_flags; /* (OBSOLETE) see fb_info.flags */ 275 276 /* Timing: All values in pixclocks, except pixclock (of course) */ 277 __u32 pixclock; /* pixel clock in ps (pico seconds) */ 278 __u32 left_margin; /* time from sync to picture */ 279 __u32 right_margin; /* time from picture to sync */ 280 __u32 upper_margin; /* time from sync to picture */ 281 __u32 lower_margin; 282 __u32 hsync_len; /* length of horizontal sync */ 283 __u32 vsync_len; /* length of vertical sync */ 284 __u32 sync; /* see FB_SYNC_* */ 285 __u32 vmode; /* see FB_VMODE_* */ 286 __u32 rotate; /* angle we rotate counter clockwise */ 287 __u32 colorspace; /* colorspace for FOURCC-based modes */ 288 __u32 reserved[4]; /* Reserved for future compatibility */ 289 }; 290 291 struct fb_cmap { 292 __u32 start; /* First entry */ 293 __u32 len; /* Number of entries */ 294 __u16 *red; /* Red values */ 295 __u16 *green; 296 __u16 *blue; 297 __u16 *transp; /* transparency, can be NULL */ 298 }; 299 300 struct fb_con2fbmap { 301 __u32 console; 302 __u32 framebuffer; 303 }; 304 305 /* VESA Blanking Levels */ 306 #define VESA_NO_BLANKING 0 307 #define VESA_VSYNC_SUSPEND 1 308 #define VESA_HSYNC_SUSPEND 2 309 #define VESA_POWERDOWN 3 310 311 312 enum { 313 /* screen: unblanked, hsync: on, vsync: on */ 314 FB_BLANK_UNBLANK = VESA_NO_BLANKING, 315 316 /* screen: blanked, hsync: on, vsync: on */ 317 FB_BLANK_NORMAL = VESA_NO_BLANKING + 1, 318 319 /* screen: blanked, hsync: on, vsync: off */ 320 FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1, 321 322 /* screen: blanked, hsync: off, vsync: on */ 323 FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1, 324 325 /* screen: blanked, hsync: off, vsync: off */ 326 FB_BLANK_POWERDOWN = VESA_POWERDOWN + 1 327 }; 328 329 #define FB_VBLANK_VBLANKING 0x001 /* currently in a vertical blank */ 330 #define FB_VBLANK_HBLANKING 0x002 /* currently in a horizontal blank */ 331 #define FB_VBLANK_HAVE_VBLANK 0x004 /* vertical blanks can be detected */ 332 #define FB_VBLANK_HAVE_HBLANK 0x008 /* horizontal blanks can be detected */ 333 #define FB_VBLANK_HAVE_COUNT 0x010 /* global retrace counter is available */ 334 #define FB_VBLANK_HAVE_VCOUNT 0x020 /* the vcount field is valid */ 335 #define FB_VBLANK_HAVE_HCOUNT 0x040 /* the hcount field is valid */ 336 #define FB_VBLANK_VSYNCING 0x080 /* currently in a vsync */ 337 #define FB_VBLANK_HAVE_VSYNC 0x100 /* verical syncs can be detected */ 338 339 struct fb_vblank { 340 __u32 flags; /* FB_VBLANK flags */ 341 __u32 count; /* counter of retraces since boot */ 342 __u32 vcount; /* current scanline position */ 343 __u32 hcount; /* current scandot position */ 344 __u32 reserved[4]; /* reserved for future compatibility */ 345 }; 346 347 /* Internal HW accel */ 348 #define ROP_COPY 0 349 #define ROP_XOR 1 350 351 struct fb_copyarea { 352 __u32 dx; 353 __u32 dy; 354 __u32 width; 355 __u32 height; 356 __u32 sx; 357 __u32 sy; 358 }; 359 360 struct fb_fillrect { 361 __u32 dx; /* screen-relative */ 362 __u32 dy; 363 __u32 width; 364 __u32 height; 365 __u32 color; 366 __u32 rop; 367 }; 368 369 struct fb_image { 370 __u32 dx; /* Where to place image */ 371 __u32 dy; 372 __u32 width; /* Size of image */ 373 __u32 height; 374 __u32 fg_color; /* Only used when a mono bitmap */ 375 __u32 bg_color; 376 __u8 depth; /* Depth of the image */ 377 const char *data; /* Pointer to image data */ 378 struct fb_cmap cmap; /* color map info */ 379 }; 380 381 /* 382 * hardware cursor control 383 */ 384 385 #define FB_CUR_SETIMAGE 0x01 386 #define FB_CUR_SETPOS 0x02 387 #define FB_CUR_SETHOT 0x04 388 #define FB_CUR_SETCMAP 0x08 389 #define FB_CUR_SETSHAPE 0x10 390 #define FB_CUR_SETSIZE 0x20 391 #define FB_CUR_SETALL 0xFF 392 393 struct fbcurpos { 394 __u16 x, y; 395 }; 396 397 struct fb_cursor { 398 __u16 set; /* what to set */ 399 __u16 enable; /* cursor on/off */ 400 __u16 rop; /* bitop operation */ 401 const char *mask; /* cursor mask bits */ 402 struct fbcurpos hot; /* cursor hot spot */ 403 struct fb_image image; /* Cursor image */ 404 }; 405 406 #ifdef CONFIG_FB_BACKLIGHT 407 /* Settings for the generic backlight code */ 408 #define FB_BACKLIGHT_LEVELS 128 409 #define FB_BACKLIGHT_MAX 0xFF 410 #endif 411 412 #ifdef __KERNEL__ 413 414 #include <linux/fs.h> 415 #include <linux/init.h> 416 #include <linux/workqueue.h> 417 #include <linux/notifier.h> 418 #include <linux/list.h> 419 #include <linux/backlight.h> 420 #include <linux/slab.h> 421 #include <asm/io.h> 422 423 struct vm_area_struct; 424 struct fb_info; 425 struct device; 426 struct file; 427 428 /* Definitions below are used in the parsed monitor specs */ 429 #define FB_DPMS_ACTIVE_OFF 1 430 #define FB_DPMS_SUSPEND 2 431 #define FB_DPMS_STANDBY 4 432 433 #define FB_DISP_DDI 1 434 #define FB_DISP_ANA_700_300 2 435 #define FB_DISP_ANA_714_286 4 436 #define FB_DISP_ANA_1000_400 8 437 #define FB_DISP_ANA_700_000 16 438 439 #define FB_DISP_MONO 32 440 #define FB_DISP_RGB 64 441 #define FB_DISP_MULTI 128 442 #define FB_DISP_UNKNOWN 256 443 444 #define FB_SIGNAL_NONE 0 445 #define FB_SIGNAL_BLANK_BLANK 1 446 #define FB_SIGNAL_SEPARATE 2 447 #define FB_SIGNAL_COMPOSITE 4 448 #define FB_SIGNAL_SYNC_ON_GREEN 8 449 #define FB_SIGNAL_SERRATION_ON 16 450 451 #define FB_MISC_PRIM_COLOR 1 452 #define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */ 453 struct fb_chroma { 454 __u32 redx; /* in fraction of 1024 */ 455 __u32 greenx; 456 __u32 bluex; 457 __u32 whitex; 458 __u32 redy; 459 __u32 greeny; 460 __u32 bluey; 461 __u32 whitey; 462 }; 463 464 struct fb_monspecs { 465 struct fb_chroma chroma; 466 struct fb_videomode *modedb; /* mode database */ 467 __u8 manufacturer[4]; /* Manufacturer */ 468 __u8 monitor[14]; /* Monitor String */ 469 __u8 serial_no[14]; /* Serial Number */ 470 __u8 ascii[14]; /* ? */ 471 __u32 modedb_len; /* mode database length */ 472 __u32 model; /* Monitor Model */ 473 __u32 serial; /* Serial Number - Integer */ 474 __u32 year; /* Year manufactured */ 475 __u32 week; /* Week Manufactured */ 476 __u32 hfmin; /* hfreq lower limit (Hz) */ 477 __u32 hfmax; /* hfreq upper limit (Hz) */ 478 __u32 dclkmin; /* pixelclock lower limit (Hz) */ 479 __u32 dclkmax; /* pixelclock upper limit (Hz) */ 480 __u16 input; /* display type - see FB_DISP_* */ 481 __u16 dpms; /* DPMS support - see FB_DPMS_ */ 482 __u16 signal; /* Signal Type - see FB_SIGNAL_* */ 483 __u16 vfmin; /* vfreq lower limit (Hz) */ 484 __u16 vfmax; /* vfreq upper limit (Hz) */ 485 __u16 gamma; /* Gamma - in fractions of 100 */ 486 __u16 gtf : 1; /* supports GTF */ 487 __u16 misc; /* Misc flags - see FB_MISC_* */ 488 __u8 version; /* EDID version... */ 489 __u8 revision; /* ...and revision */ 490 __u8 max_x; /* Maximum horizontal size (cm) */ 491 __u8 max_y; /* Maximum vertical size (cm) */ 492 }; 493 494 struct fb_cmap_user { 495 __u32 start; /* First entry */ 496 __u32 len; /* Number of entries */ 497 __u16 __user *red; /* Red values */ 498 __u16 __user *green; 499 __u16 __user *blue; 500 __u16 __user *transp; /* transparency, can be NULL */ 501 }; 502 503 struct fb_image_user { 504 __u32 dx; /* Where to place image */ 505 __u32 dy; 506 __u32 width; /* Size of image */ 507 __u32 height; 508 __u32 fg_color; /* Only used when a mono bitmap */ 509 __u32 bg_color; 510 __u8 depth; /* Depth of the image */ 511 const char __user *data; /* Pointer to image data */ 512 struct fb_cmap_user cmap; /* color map info */ 513 }; 514 515 struct fb_cursor_user { 516 __u16 set; /* what to set */ 517 __u16 enable; /* cursor on/off */ 518 __u16 rop; /* bitop operation */ 519 const char __user *mask; /* cursor mask bits */ 520 struct fbcurpos hot; /* cursor hot spot */ 521 struct fb_image_user image; /* Cursor image */ 522 }; 523 524 /* 525 * Register/unregister for framebuffer events 526 */ 527 528 /* The resolution of the passed in fb_info about to change */ 529 #define FB_EVENT_MODE_CHANGE 0x01 530 /* The display on this fb_info is beeing suspended, no access to the 531 * framebuffer is allowed any more after that call returns 532 */ 533 #define FB_EVENT_SUSPEND 0x02 534 /* The display on this fb_info was resumed, you can restore the display 535 * if you own it 536 */ 537 #define FB_EVENT_RESUME 0x03 538 /* An entry from the modelist was removed */ 539 #define FB_EVENT_MODE_DELETE 0x04 540 /* A driver registered itself */ 541 #define FB_EVENT_FB_REGISTERED 0x05 542 /* A driver unregistered itself */ 543 #define FB_EVENT_FB_UNREGISTERED 0x06 544 /* CONSOLE-SPECIFIC: get console to framebuffer mapping */ 545 #define FB_EVENT_GET_CONSOLE_MAP 0x07 546 /* CONSOLE-SPECIFIC: set console to framebuffer mapping */ 547 #define FB_EVENT_SET_CONSOLE_MAP 0x08 548 /* A hardware display blank change occurred */ 549 #define FB_EVENT_BLANK 0x09 550 /* Private modelist is to be replaced */ 551 #define FB_EVENT_NEW_MODELIST 0x0A 552 /* The resolution of the passed in fb_info about to change and 553 all vc's should be changed */ 554 #define FB_EVENT_MODE_CHANGE_ALL 0x0B 555 /* A software display blank change occurred */ 556 #define FB_EVENT_CONBLANK 0x0C 557 /* Get drawing requirements */ 558 #define FB_EVENT_GET_REQ 0x0D 559 /* Unbind from the console if possible */ 560 #define FB_EVENT_FB_UNBIND 0x0E 561 /* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */ 562 #define FB_EVENT_REMAP_ALL_CONSOLE 0x0F 563 564 struct fb_event { 565 struct fb_info *info; 566 void *data; 567 }; 568 569 struct fb_blit_caps { 570 u32 x; 571 u32 y; 572 u32 len; 573 u32 flags; 574 }; 575 576 extern int fb_register_client(struct notifier_block *nb); 577 extern int fb_unregister_client(struct notifier_block *nb); 578 extern int fb_notifier_call_chain(unsigned long val, void *v); 579 /* 580 * Pixmap structure definition 581 * 582 * The purpose of this structure is to translate data 583 * from the hardware independent format of fbdev to what 584 * format the hardware needs. 585 */ 586 587 #define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */ 588 #define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */ 589 #define FB_PIXMAP_IO 4 /* memory is iomapped */ 590 #define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */ 591 592 struct fb_pixmap { 593 u8 *addr; /* pointer to memory */ 594 u32 size; /* size of buffer in bytes */ 595 u32 offset; /* current offset to buffer */ 596 u32 buf_align; /* byte alignment of each bitmap */ 597 u32 scan_align; /* alignment per scanline */ 598 u32 access_align; /* alignment per read/write (bits) */ 599 u32 flags; /* see FB_PIXMAP_* */ 600 u32 blit_x; /* supported bit block dimensions (1-32)*/ 601 u32 blit_y; /* Format: blit_x = 1 << (width - 1) */ 602 /* blit_y = 1 << (height - 1) */ 603 /* if 0, will be set to 0xffffffff (all)*/ 604 /* access methods */ 605 void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size); 606 void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size); 607 }; 608 609 #ifdef CONFIG_FB_DEFERRED_IO 610 struct fb_deferred_io { 611 /* delay between mkwrite and deferred handler */ 612 unsigned long delay; 613 struct mutex lock; /* mutex that protects the page list */ 614 struct list_head pagelist; /* list of touched pages */ 615 /* callback */ 616 void (*deferred_io)(struct fb_info *info, struct list_head *pagelist); 617 }; 618 #endif 619 620 /* 621 * Frame buffer operations 622 * 623 * LOCKING NOTE: those functions must _ALL_ be called with the console 624 * semaphore held, this is the only suitable locking mechanism we have 625 * in 2.6. Some may be called at interrupt time at this point though. 626 * 627 * The exception to this is the debug related hooks. Putting the fb 628 * into a debug state (e.g. flipping to the kernel console) and restoring 629 * it must be done in a lock-free manner, so low level drivers should 630 * keep track of the initial console (if applicable) and may need to 631 * perform direct, unlocked hardware writes in these hooks. 632 */ 633 634 struct fb_ops { 635 /* open/release and usage marking */ 636 struct module *owner; 637 int (*fb_open)(struct fb_info *info, int user); 638 int (*fb_release)(struct fb_info *info, int user); 639 640 /* For framebuffers with strange non linear layouts or that do not 641 * work with normal memory mapped access 642 */ 643 ssize_t (*fb_read)(struct fb_info *info, char __user *buf, 644 size_t count, loff_t *ppos); 645 ssize_t (*fb_write)(struct fb_info *info, const char __user *buf, 646 size_t count, loff_t *ppos); 647 648 /* checks var and eventually tweaks it to something supported, 649 * DO NOT MODIFY PAR */ 650 int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info); 651 652 /* set the video mode according to info->var */ 653 int (*fb_set_par)(struct fb_info *info); 654 655 /* set color register */ 656 int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green, 657 unsigned blue, unsigned transp, struct fb_info *info); 658 659 /* set color registers in batch */ 660 int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info); 661 662 /* blank display */ 663 int (*fb_blank)(int blank, struct fb_info *info); 664 665 /* pan display */ 666 int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info); 667 668 /* Draws a rectangle */ 669 void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect); 670 /* Copy data from area to another */ 671 void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region); 672 /* Draws a image to the display */ 673 void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image); 674 675 /* Draws cursor */ 676 int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor); 677 678 /* Rotates the display */ 679 void (*fb_rotate)(struct fb_info *info, int angle); 680 681 /* wait for blit idle, optional */ 682 int (*fb_sync)(struct fb_info *info); 683 684 /* perform fb specific ioctl (optional) */ 685 int (*fb_ioctl)(struct fb_info *info, unsigned int cmd, 686 unsigned long arg); 687 688 /* Handle 32bit compat ioctl (optional) */ 689 int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd, 690 unsigned long arg); 691 692 /* perform fb specific mmap */ 693 int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma); 694 695 /* get capability given var */ 696 void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps, 697 struct fb_var_screeninfo *var); 698 699 /* teardown any resources to do with this framebuffer */ 700 void (*fb_destroy)(struct fb_info *info); 701 702 /* called at KDB enter and leave time to prepare the console */ 703 int (*fb_debug_enter)(struct fb_info *info); 704 int (*fb_debug_leave)(struct fb_info *info); 705 }; 706 707 #ifdef CONFIG_FB_TILEBLITTING 708 #define FB_TILE_CURSOR_NONE 0 709 #define FB_TILE_CURSOR_UNDERLINE 1 710 #define FB_TILE_CURSOR_LOWER_THIRD 2 711 #define FB_TILE_CURSOR_LOWER_HALF 3 712 #define FB_TILE_CURSOR_TWO_THIRDS 4 713 #define FB_TILE_CURSOR_BLOCK 5 714 715 struct fb_tilemap { 716 __u32 width; /* width of each tile in pixels */ 717 __u32 height; /* height of each tile in scanlines */ 718 __u32 depth; /* color depth of each tile */ 719 __u32 length; /* number of tiles in the map */ 720 const __u8 *data; /* actual tile map: a bitmap array, packed 721 to the nearest byte */ 722 }; 723 724 struct fb_tilerect { 725 __u32 sx; /* origin in the x-axis */ 726 __u32 sy; /* origin in the y-axis */ 727 __u32 width; /* number of tiles in the x-axis */ 728 __u32 height; /* number of tiles in the y-axis */ 729 __u32 index; /* what tile to use: index to tile map */ 730 __u32 fg; /* foreground color */ 731 __u32 bg; /* background color */ 732 __u32 rop; /* raster operation */ 733 }; 734 735 struct fb_tilearea { 736 __u32 sx; /* source origin in the x-axis */ 737 __u32 sy; /* source origin in the y-axis */ 738 __u32 dx; /* destination origin in the x-axis */ 739 __u32 dy; /* destination origin in the y-axis */ 740 __u32 width; /* number of tiles in the x-axis */ 741 __u32 height; /* number of tiles in the y-axis */ 742 }; 743 744 struct fb_tileblit { 745 __u32 sx; /* origin in the x-axis */ 746 __u32 sy; /* origin in the y-axis */ 747 __u32 width; /* number of tiles in the x-axis */ 748 __u32 height; /* number of tiles in the y-axis */ 749 __u32 fg; /* foreground color */ 750 __u32 bg; /* background color */ 751 __u32 length; /* number of tiles to draw */ 752 __u32 *indices; /* array of indices to tile map */ 753 }; 754 755 struct fb_tilecursor { 756 __u32 sx; /* cursor position in the x-axis */ 757 __u32 sy; /* cursor position in the y-axis */ 758 __u32 mode; /* 0 = erase, 1 = draw */ 759 __u32 shape; /* see FB_TILE_CURSOR_* */ 760 __u32 fg; /* foreground color */ 761 __u32 bg; /* background color */ 762 }; 763 764 struct fb_tile_ops { 765 /* set tile characteristics */ 766 void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map); 767 768 /* all dimensions from hereon are in terms of tiles */ 769 770 /* move a rectangular region of tiles from one area to another*/ 771 void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area); 772 /* fill a rectangular region with a tile */ 773 void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect); 774 /* copy an array of tiles */ 775 void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit); 776 /* cursor */ 777 void (*fb_tilecursor)(struct fb_info *info, 778 struct fb_tilecursor *cursor); 779 /* get maximum length of the tile map */ 780 int (*fb_get_tilemax)(struct fb_info *info); 781 }; 782 #endif /* CONFIG_FB_TILEBLITTING */ 783 784 /* FBINFO_* = fb_info.flags bit flags */ 785 #define FBINFO_MODULE 0x0001 /* Low-level driver is a module */ 786 #define FBINFO_HWACCEL_DISABLED 0x0002 787 /* When FBINFO_HWACCEL_DISABLED is set: 788 * Hardware acceleration is turned off. Software implementations 789 * of required functions (copyarea(), fillrect(), and imageblit()) 790 * takes over; acceleration engine should be in a quiescent state */ 791 792 /* hints */ 793 #define FBINFO_VIRTFB 0x0004 /* FB is System RAM, not device. */ 794 #define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */ 795 #define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */ 796 797 /* hardware supported ops */ 798 /* semantics: when a bit is set, it indicates that the operation is 799 * accelerated by hardware. 800 * required functions will still work even if the bit is not set. 801 * optional functions may not even exist if the flag bit is not set. 802 */ 803 #define FBINFO_HWACCEL_NONE 0x0000 804 #define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */ 805 #define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */ 806 #define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */ 807 #define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */ 808 #define FBINFO_HWACCEL_XPAN 0x1000 /* optional */ 809 #define FBINFO_HWACCEL_YPAN 0x2000 /* optional */ 810 #define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */ 811 812 #define FBINFO_MISC_USEREVENT 0x10000 /* event request 813 from userspace */ 814 #define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */ 815 816 /* A driver may set this flag to indicate that it does want a set_par to be 817 * called every time when fbcon_switch is executed. The advantage is that with 818 * this flag set you can really be sure that set_par is always called before 819 * any of the functions dependent on the correct hardware state or altering 820 * that state, even if you are using some broken X releases. The disadvantage 821 * is that it introduces unwanted delays to every console switch if set_par 822 * is slow. It is a good idea to try this flag in the drivers initialization 823 * code whenever there is a bug report related to switching between X and the 824 * framebuffer console. 825 */ 826 #define FBINFO_MISC_ALWAYS_SETPAR 0x40000 827 828 /* where the fb is a firmware driver, and can be replaced with a proper one */ 829 #define FBINFO_MISC_FIRMWARE 0x80000 830 /* 831 * Host and GPU endianness differ. 832 */ 833 #define FBINFO_FOREIGN_ENDIAN 0x100000 834 /* 835 * Big endian math. This is the same flags as above, but with different 836 * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag 837 * and host endianness. Drivers should not use this flag. 838 */ 839 #define FBINFO_BE_MATH 0x100000 840 841 /* report to the VT layer that this fb driver can accept forced console 842 output like oopses */ 843 #define FBINFO_CAN_FORCE_OUTPUT 0x200000 844 845 struct fb_info { 846 atomic_t count; 847 int node; 848 int flags; 849 struct mutex lock; /* Lock for open/release/ioctl funcs */ 850 struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */ 851 struct fb_var_screeninfo var; /* Current var */ 852 struct fb_fix_screeninfo fix; /* Current fix */ 853 struct fb_monspecs monspecs; /* Current Monitor specs */ 854 struct work_struct queue; /* Framebuffer event queue */ 855 struct fb_pixmap pixmap; /* Image hardware mapper */ 856 struct fb_pixmap sprite; /* Cursor hardware mapper */ 857 struct fb_cmap cmap; /* Current cmap */ 858 struct list_head modelist; /* mode list */ 859 struct fb_videomode *mode; /* current mode */ 860 861 #ifdef CONFIG_FB_BACKLIGHT 862 /* assigned backlight device */ 863 /* set before framebuffer registration, 864 remove after unregister */ 865 struct backlight_device *bl_dev; 866 867 /* Backlight level curve */ 868 struct mutex bl_curve_mutex; 869 u8 bl_curve[FB_BACKLIGHT_LEVELS]; 870 #endif 871 #ifdef CONFIG_FB_DEFERRED_IO 872 struct delayed_work deferred_work; 873 struct fb_deferred_io *fbdefio; 874 #endif 875 876 struct fb_ops *fbops; 877 struct device *device; /* This is the parent */ 878 struct device *dev; /* This is this fb device */ 879 int class_flag; /* private sysfs flags */ 880 #ifdef CONFIG_FB_TILEBLITTING 881 struct fb_tile_ops *tileops; /* Tile Blitting */ 882 #endif 883 char __iomem *screen_base; /* Virtual address */ 884 unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */ 885 void *pseudo_palette; /* Fake palette of 16 colors */ 886 #define FBINFO_STATE_RUNNING 0 887 #define FBINFO_STATE_SUSPENDED 1 888 u32 state; /* Hardware state i.e suspend */ 889 void *fbcon_par; /* fbcon use-only private area */ 890 /* From here on everything is device dependent */ 891 void *par; 892 /* we need the PCI or similar aperture base/size not 893 smem_start/size as smem_start may just be an object 894 allocated inside the aperture so may not actually overlap */ 895 struct apertures_struct { 896 unsigned int count; 897 struct aperture { 898 resource_size_t base; 899 resource_size_t size; 900 } ranges[0]; 901 } *apertures; 902 }; 903 904 static inline struct apertures_struct *alloc_apertures(unsigned int max_num) { 905 struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct) 906 + max_num * sizeof(struct aperture), GFP_KERNEL); 907 if (!a) 908 return NULL; 909 a->count = max_num; 910 return a; 911 } 912 913 #ifdef MODULE 914 #define FBINFO_DEFAULT FBINFO_MODULE 915 #else 916 #define FBINFO_DEFAULT 0 917 #endif 918 919 // This will go away 920 #define FBINFO_FLAG_MODULE FBINFO_MODULE 921 #define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT 922 923 /* This will go away 924 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags 925 * when it wants to turn the acceleration engine on. This is 926 * really a separate operation, and should be modified via sysfs. 927 * But for now, we leave it broken with the following define 928 */ 929 #define STUPID_ACCELF_TEXT_SHIT 930 931 // This will go away 932 #if defined(__sparc__) 933 934 /* We map all of our framebuffers such that big-endian accesses 935 * are what we want, so the following is sufficient. 936 */ 937 938 // This will go away 939 #define fb_readb sbus_readb 940 #define fb_readw sbus_readw 941 #define fb_readl sbus_readl 942 #define fb_readq sbus_readq 943 #define fb_writeb sbus_writeb 944 #define fb_writew sbus_writew 945 #define fb_writel sbus_writel 946 #define fb_writeq sbus_writeq 947 #define fb_memset sbus_memset_io 948 #define fb_memcpy_fromfb sbus_memcpy_fromio 949 #define fb_memcpy_tofb sbus_memcpy_toio 950 951 #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__) 952 953 #define fb_readb __raw_readb 954 #define fb_readw __raw_readw 955 #define fb_readl __raw_readl 956 #define fb_readq __raw_readq 957 #define fb_writeb __raw_writeb 958 #define fb_writew __raw_writew 959 #define fb_writel __raw_writel 960 #define fb_writeq __raw_writeq 961 #define fb_memset memset_io 962 #define fb_memcpy_fromfb memcpy_fromio 963 #define fb_memcpy_tofb memcpy_toio 964 965 #else 966 967 #define fb_readb(addr) (*(volatile u8 *) (addr)) 968 #define fb_readw(addr) (*(volatile u16 *) (addr)) 969 #define fb_readl(addr) (*(volatile u32 *) (addr)) 970 #define fb_readq(addr) (*(volatile u64 *) (addr)) 971 #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b)) 972 #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b)) 973 #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b)) 974 #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b)) 975 #define fb_memset memset 976 #define fb_memcpy_fromfb memcpy 977 #define fb_memcpy_tofb memcpy 978 979 #endif 980 981 #define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0) 982 #define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \ 983 (val) << (bits)) 984 #define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \ 985 (val) >> (bits)) 986 987 /* 988 * `Generic' versions of the frame buffer device operations 989 */ 990 991 extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var); 992 extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var); 993 extern int fb_blank(struct fb_info *info, int blank); 994 extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect); 995 extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area); 996 extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image); 997 /* 998 * Drawing operations where framebuffer is in system RAM 999 */ 1000 extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect); 1001 extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area); 1002 extern void sys_imageblit(struct fb_info *info, const struct fb_image *image); 1003 extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf, 1004 size_t count, loff_t *ppos); 1005 extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf, 1006 size_t count, loff_t *ppos); 1007 1008 /* drivers/video/fbmem.c */ 1009 extern int register_framebuffer(struct fb_info *fb_info); 1010 extern int unregister_framebuffer(struct fb_info *fb_info); 1011 extern int unlink_framebuffer(struct fb_info *fb_info); 1012 extern void remove_conflicting_framebuffers(struct apertures_struct *a, 1013 const char *name, bool primary); 1014 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate); 1015 extern int fb_show_logo(struct fb_info *fb_info, int rotate); 1016 extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size); 1017 extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx, 1018 u32 height, u32 shift_high, u32 shift_low, u32 mod); 1019 extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height); 1020 extern void fb_set_suspend(struct fb_info *info, int state); 1021 extern int fb_get_color_depth(struct fb_var_screeninfo *var, 1022 struct fb_fix_screeninfo *fix); 1023 extern int fb_get_options(char *name, char **option); 1024 extern int fb_new_modelist(struct fb_info *info); 1025 1026 extern struct fb_info *registered_fb[FB_MAX]; 1027 extern int num_registered_fb; 1028 extern struct class *fb_class; 1029 1030 extern int lock_fb_info(struct fb_info *info); 1031 1032 static inline void unlock_fb_info(struct fb_info *info) 1033 { 1034 mutex_unlock(&info->lock); 1035 } 1036 1037 static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, 1038 u8 *src, u32 s_pitch, u32 height) 1039 { 1040 int i, j; 1041 1042 d_pitch -= s_pitch; 1043 1044 for (i = height; i--; ) { 1045 /* s_pitch is a few bytes at the most, memcpy is suboptimal */ 1046 for (j = 0; j < s_pitch; j++) 1047 *dst++ = *src++; 1048 dst += d_pitch; 1049 } 1050 } 1051 1052 /* drivers/video/fb_defio.c */ 1053 extern void fb_deferred_io_init(struct fb_info *info); 1054 extern void fb_deferred_io_open(struct fb_info *info, 1055 struct inode *inode, 1056 struct file *file); 1057 extern void fb_deferred_io_cleanup(struct fb_info *info); 1058 extern int fb_deferred_io_fsync(struct file *file, loff_t start, 1059 loff_t end, int datasync); 1060 1061 static inline bool fb_be_math(struct fb_info *info) 1062 { 1063 #ifdef CONFIG_FB_FOREIGN_ENDIAN 1064 #if defined(CONFIG_FB_BOTH_ENDIAN) 1065 return info->flags & FBINFO_BE_MATH; 1066 #elif defined(CONFIG_FB_BIG_ENDIAN) 1067 return true; 1068 #elif defined(CONFIG_FB_LITTLE_ENDIAN) 1069 return false; 1070 #endif /* CONFIG_FB_BOTH_ENDIAN */ 1071 #else 1072 #ifdef __BIG_ENDIAN 1073 return true; 1074 #else 1075 return false; 1076 #endif /* __BIG_ENDIAN */ 1077 #endif /* CONFIG_FB_FOREIGN_ENDIAN */ 1078 } 1079 1080 /* drivers/video/fbsysfs.c */ 1081 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev); 1082 extern void framebuffer_release(struct fb_info *info); 1083 extern int fb_init_device(struct fb_info *fb_info); 1084 extern void fb_cleanup_device(struct fb_info *head); 1085 extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max); 1086 1087 /* drivers/video/fbmon.c */ 1088 #define FB_MAXTIMINGS 0 1089 #define FB_VSYNCTIMINGS 1 1090 #define FB_HSYNCTIMINGS 2 1091 #define FB_DCLKTIMINGS 3 1092 #define FB_IGNOREMON 0x100 1093 1094 #define FB_MODE_IS_UNKNOWN 0 1095 #define FB_MODE_IS_DETAILED 1 1096 #define FB_MODE_IS_STANDARD 2 1097 #define FB_MODE_IS_VESA 4 1098 #define FB_MODE_IS_CALCULATED 8 1099 #define FB_MODE_IS_FIRST 16 1100 #define FB_MODE_IS_FROM_VAR 32 1101 1102 extern int fbmon_dpms(const struct fb_info *fb_info); 1103 extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var, 1104 struct fb_info *info); 1105 extern int fb_validate_mode(const struct fb_var_screeninfo *var, 1106 struct fb_info *info); 1107 extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var); 1108 extern const unsigned char *fb_firmware_edid(struct device *device); 1109 extern void fb_edid_to_monspecs(unsigned char *edid, 1110 struct fb_monspecs *specs); 1111 extern void fb_edid_add_monspecs(unsigned char *edid, 1112 struct fb_monspecs *specs); 1113 extern void fb_destroy_modedb(struct fb_videomode *modedb); 1114 extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb); 1115 extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter); 1116 1117 /* drivers/video/modedb.c */ 1118 #define VESA_MODEDB_SIZE 34 1119 extern void fb_var_to_videomode(struct fb_videomode *mode, 1120 const struct fb_var_screeninfo *var); 1121 extern void fb_videomode_to_var(struct fb_var_screeninfo *var, 1122 const struct fb_videomode *mode); 1123 extern int fb_mode_is_equal(const struct fb_videomode *mode1, 1124 const struct fb_videomode *mode2); 1125 extern int fb_add_videomode(const struct fb_videomode *mode, 1126 struct list_head *head); 1127 extern void fb_delete_videomode(const struct fb_videomode *mode, 1128 struct list_head *head); 1129 extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var, 1130 struct list_head *head); 1131 extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var, 1132 struct list_head *head); 1133 extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode, 1134 struct list_head *head); 1135 extern void fb_destroy_modelist(struct list_head *head); 1136 extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num, 1137 struct list_head *head); 1138 extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs, 1139 struct list_head *head); 1140 1141 /* drivers/video/fbcmap.c */ 1142 extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp); 1143 extern int fb_alloc_cmap_gfp(struct fb_cmap *cmap, int len, int transp, gfp_t flags); 1144 extern void fb_dealloc_cmap(struct fb_cmap *cmap); 1145 extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to); 1146 extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to); 1147 extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info); 1148 extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info); 1149 extern const struct fb_cmap *fb_default_cmap(int len); 1150 extern void fb_invert_cmaps(void); 1151 1152 struct fb_videomode { 1153 const char *name; /* optional */ 1154 u32 refresh; /* optional */ 1155 u32 xres; 1156 u32 yres; 1157 u32 pixclock; 1158 u32 left_margin; 1159 u32 right_margin; 1160 u32 upper_margin; 1161 u32 lower_margin; 1162 u32 hsync_len; 1163 u32 vsync_len; 1164 u32 sync; 1165 u32 vmode; 1166 u32 flag; 1167 }; 1168 1169 extern const char *fb_mode_option; 1170 extern const struct fb_videomode vesa_modes[]; 1171 extern const struct fb_videomode cea_modes[64]; 1172 1173 struct fb_modelist { 1174 struct list_head list; 1175 struct fb_videomode mode; 1176 }; 1177 1178 extern int fb_find_mode(struct fb_var_screeninfo *var, 1179 struct fb_info *info, const char *mode_option, 1180 const struct fb_videomode *db, 1181 unsigned int dbsize, 1182 const struct fb_videomode *default_mode, 1183 unsigned int default_bpp); 1184 1185 #endif /* __KERNEL__ */ 1186 1187 #endif /* _LINUX_FB_H */ 1188
