| 1 | |
| 2 | /* |
| 3 | * XFree86 vbe module |
| 4 | * Copyright 2000 Egbert Eich |
| 5 | * |
| 6 | * The mode query/save/set/restore functions from the vesa driver |
| 7 | * have been moved here. |
| 8 | * Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com) |
| 9 | * Authors: Paulo César Pereira de Andrade <pcpa@conectiva.com.br> |
| 10 | */ |
| 11 | |
| 12 | #ifndef _VBE_H |
| 13 | #define _VBE_H |
| 14 | #include "xf86int10.h" |
| 15 | #include "xf86DDC.h" |
| 16 | |
| 17 | typedef enum { |
| 18 | DDC_UNCHECKED, |
| 19 | DDC_NONE, |
| 20 | DDC_1, |
| 21 | DDC_2, |
| 22 | DDC_1_2 |
| 23 | } ddc_lvl; |
| 24 | |
| 25 | typedef struct { |
| 26 | xf86Int10InfoPtr pInt10; |
| 27 | int version; |
| 28 | pointer memory; |
| 29 | int real_mode_base; |
| 30 | int num_pages; |
| 31 | Bool init_int10; |
| 32 | ddc_lvl ddc; |
| 33 | Bool ddc_blank; |
| 34 | } vbeInfoRec, *vbeInfoPtr; |
| 35 | |
| 36 | #define VBE_VERSION_MAJOR(x) *((CARD8*)(&x) + 1) |
| 37 | #define VBE_VERSION_MINOR(x) (CARD8)(x) |
| 38 | |
| 39 | extern _X_EXPORT vbeInfoPtr VBEInit(xf86Int10InfoPtr pInt, int entityIndex); |
| 40 | extern _X_EXPORT vbeInfoPtr VBEExtendedInit(xf86Int10InfoPtr pInt, |
| 41 | int entityIndex, int Flags); |
| 42 | extern _X_EXPORT void vbeFree(vbeInfoPtr pVbe); |
| 43 | extern _X_EXPORT xf86MonPtr vbeDoEDID(vbeInfoPtr pVbe, pointer pDDCModule); |
| 44 | |
| 45 | #pragma pack(1) |
| 46 | |
| 47 | typedef struct vbeControllerInfoBlock { |
| 48 | CARD8 VbeSignature[4]; |
| 49 | CARD16 VbeVersion; |
| 50 | CARD32 OemStringPtr; |
| 51 | CARD8 Capabilities[4]; |
| 52 | CARD32 VideoModePtr; |
| 53 | CARD16 TotalMem; |
| 54 | CARD16 OemSoftwareRev; |
| 55 | CARD32 OemVendorNamePtr; |
| 56 | CARD32 OemProductNamePtr; |
| 57 | CARD32 OemProductRevPtr; |
| 58 | CARD8 Scratch[222]; |
| 59 | CARD8 OemData[256]; |
| 60 | } vbeControllerInfoRec, *vbeControllerInfoPtr; |
| 61 | |
| 62 | #if defined(__GNUC__) || defined(__USLC__) || defined(__SUNPRO_C) |
| 63 | #pragma pack() /* All GCC versions recognise this syntax */ |
| 64 | #else |
| 65 | #pragma pack(0) |
| 66 | #endif |
| 67 | |
| 68 | #if !( defined(__GNUC__) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590)) ) |
| 69 | #define __attribute__(a) |
| 70 | #endif |
| 71 | |
| 72 | typedef struct _VbeInfoBlock VbeInfoBlock; |
| 73 | typedef struct _VbeModeInfoBlock VbeModeInfoBlock; |
| 74 | typedef struct _VbeCRTCInfoBlock VbeCRTCInfoBlock; |
| 75 | |
| 76 | /* |
| 77 | * INT 0 |
| 78 | */ |
| 79 | |
| 80 | struct _VbeInfoBlock { |
| 81 | /* VESA 1.2 fields */ |
| 82 | CARD8 VESASignature[4]; /* VESA */ |
| 83 | CARD16 VESAVersion; /* Higher byte major, lower byte minor */ |
| 84 | /*CARD32 */ char *OEMStringPtr; |
| 85 | /* Pointer to OEM string */ |
| 86 | CARD8 Capabilities[4]; /* Capabilities of the video environment */ |
| 87 | |
| 88 | /*CARD32 */ CARD16 *VideoModePtr; |
| 89 | /* pointer to supported Super VGA modes */ |
| 90 | |
| 91 | CARD16 TotalMemory; /* Number of 64kb memory blocks on board */ |
| 92 | /* if not VESA 2, 236 scratch bytes follow (256 bytes total size) */ |
| 93 | |
| 94 | /* VESA 2 fields */ |
| 95 | CARD16 OemSoftwareRev; /* VBE implementation Software revision */ |
| 96 | /*CARD32 */ char *OemVendorNamePtr; |
| 97 | /* Pointer to Vendor Name String */ |
| 98 | /*CARD32 */ char *OemProductNamePtr; |
| 99 | /* Pointer to Product Name String */ |
| 100 | /*CARD32 */ char *OemProductRevPtr; |
| 101 | /* Pointer to Product Revision String */ |
| 102 | CARD8 Reserved[222]; /* Reserved for VBE implementation */ |
| 103 | CARD8 OemData[256]; /* Data Area for OEM Strings */ |
| 104 | } __attribute__ ((packed)); |
| 105 | |
| 106 | /* Return Super VGA Information */ |
| 107 | extern _X_EXPORT VbeInfoBlock *VBEGetVBEInfo(vbeInfoPtr pVbe); |
| 108 | extern _X_EXPORT void VBEFreeVBEInfo(VbeInfoBlock * block); |
| 109 | |
| 110 | /* |
| 111 | * INT 1 |
| 112 | */ |
| 113 | |
| 114 | struct _VbeModeInfoBlock { |
| 115 | CARD16 ModeAttributes; /* mode attributes */ |
| 116 | CARD8 WinAAttributes; /* window A attributes */ |
| 117 | CARD8 WinBAttributes; /* window B attributes */ |
| 118 | CARD16 WinGranularity; /* window granularity */ |
| 119 | CARD16 WinSize; /* window size */ |
| 120 | CARD16 WinASegment; /* window A start segment */ |
| 121 | CARD16 WinBSegment; /* window B start segment */ |
| 122 | CARD32 WinFuncPtr; /* real mode pointer to window function */ |
| 123 | CARD16 BytesPerScanline; /* bytes per scanline */ |
| 124 | |
| 125 | /* Mandatory information for VBE 1.2 and above */ |
| 126 | CARD16 XResolution; /* horizontal resolution in pixels or characters */ |
| 127 | CARD16 YResolution; /* vertical resolution in pixels or characters */ |
| 128 | CARD8 XCharSize; /* character cell width in pixels */ |
| 129 | CARD8 YCharSize; /* character cell height in pixels */ |
| 130 | CARD8 NumberOfPlanes; /* number of memory planes */ |
| 131 | CARD8 BitsPerPixel; /* bits per pixel */ |
| 132 | CARD8 NumberOfBanks; /* number of banks */ |
| 133 | CARD8 MemoryModel; /* memory model type */ |
| 134 | CARD8 BankSize; /* bank size in KB */ |
| 135 | CARD8 NumberOfImages; /* number of images */ |
| 136 | CARD8 Reserved; /* 1 *//* reserved for page function */ |
| 137 | |
| 138 | /* Direct color fields (required for direct/6 and YUV/7 memory models) */ |
| 139 | CARD8 RedMaskSize; /* size of direct color red mask in bits */ |
| 140 | CARD8 RedFieldPosition; /* bit position of lsb of red mask */ |
| 141 | CARD8 GreenMaskSize; /* size of direct color green mask in bits */ |
| 142 | CARD8 GreenFieldPosition; /* bit position of lsb of green mask */ |
| 143 | CARD8 BlueMaskSize; /* size of direct color blue mask in bits */ |
| 144 | CARD8 BlueFieldPosition; /* bit position of lsb of blue mask */ |
| 145 | CARD8 RsvdMaskSize; /* size of direct color reserved mask in bits */ |
| 146 | CARD8 RsvdFieldPosition; /* bit position of lsb of reserved mask */ |
| 147 | CARD8 DirectColorModeInfo; /* direct color mode attributes */ |
| 148 | |
| 149 | /* Mandatory information for VBE 2.0 and above */ |
| 150 | CARD32 PhysBasePtr; /* physical address for flat memory frame buffer */ |
| 151 | CARD32 Reserved32; /* 0 *//* Reserved - always set to 0 */ |
| 152 | CARD16 Reserved16; /* 0 *//* Reserved - always set to 0 */ |
| 153 | |
| 154 | /* Mandatory information for VBE 3.0 and above */ |
| 155 | CARD16 LinBytesPerScanLine; /* bytes per scan line for linear modes */ |
| 156 | CARD8 BnkNumberOfImagePages; /* number of images for banked modes */ |
| 157 | CARD8 LinNumberOfImagePages; /* number of images for linear modes */ |
| 158 | CARD8 LinRedMaskSize; /* size of direct color red mask (linear modes) */ |
| 159 | CARD8 LinRedFieldPosition; /* bit position of lsb of red mask (linear modes) */ |
| 160 | CARD8 LinGreenMaskSize; /* size of direct color green mask (linear modes) */ |
| 161 | CARD8 LinGreenFieldPosition; /* bit position of lsb of green mask (linear modes) */ |
| 162 | CARD8 LinBlueMaskSize; /* size of direct color blue mask (linear modes) */ |
| 163 | CARD8 LinBlueFieldPosition; /* bit position of lsb of blue mask (linear modes) */ |
| 164 | CARD8 LinRsvdMaskSize; /* size of direct color reserved mask (linear modes) */ |
| 165 | CARD8 LinRsvdFieldPosition; /* bit position of lsb of reserved mask (linear modes) */ |
| 166 | CARD32 MaxPixelClock; /* maximum pixel clock (in Hz) for graphics mode */ |
| 167 | CARD8 Reserved2[189]; /* remainder of VbeModeInfoBlock */ |
| 168 | } __attribute__ ((packed)); |
| 169 | |
| 170 | /* Return VBE Mode Information */ |
| 171 | extern _X_EXPORT VbeModeInfoBlock *VBEGetModeInfo(vbeInfoPtr pVbe, int mode); |
| 172 | extern _X_EXPORT void VBEFreeModeInfo(VbeModeInfoBlock * block); |
| 173 | |
| 174 | /* |
| 175 | * INT2 |
| 176 | */ |
| 177 | |
| 178 | #define CRTC_DBLSCAN (1<<0) |
| 179 | #define CRTC_INTERLACE (1<<1) |
| 180 | #define CRTC_NHSYNC (1<<2) |
| 181 | #define CRTC_NVSYNC (1<<3) |
| 182 | |
| 183 | struct _VbeCRTCInfoBlock { |
| 184 | CARD16 HorizontalTotal; /* Horizontal total in pixels */ |
| 185 | CARD16 HorizontalSyncStart; /* Horizontal sync start in pixels */ |
| 186 | CARD16 HorizontalSyncEnd; /* Horizontal sync end in pixels */ |
| 187 | CARD16 VerticalTotal; /* Vertical total in lines */ |
| 188 | CARD16 VerticalSyncStart; /* Vertical sync start in lines */ |
| 189 | CARD16 VerticalSyncEnd; /* Vertical sync end in lines */ |
| 190 | CARD8 Flags; /* Flags (Interlaced, Double Scan etc) */ |
| 191 | CARD32 PixelClock; /* Pixel clock in units of Hz */ |
| 192 | CARD16 RefreshRate; /* Refresh rate in units of 0.01 Hz */ |
| 193 | CARD8 Reserved[40]; /* remainder of ModeInfoBlock */ |
| 194 | } __attribute__ ((packed)); |
| 195 | |
| 196 | /* VbeCRTCInfoBlock is in the VESA 3.0 specs */ |
| 197 | |
| 198 | extern _X_EXPORT Bool VBESetVBEMode(vbeInfoPtr pVbe, int mode, |
| 199 | VbeCRTCInfoBlock * crtc); |
| 200 | |
| 201 | /* |
| 202 | * INT 3 |
| 203 | */ |
| 204 | |
| 205 | extern _X_EXPORT Bool VBEGetVBEMode(vbeInfoPtr pVbe, int *mode); |
| 206 | |
| 207 | /* |
| 208 | * INT 4 |
| 209 | */ |
| 210 | |
| 211 | /* Save/Restore Super VGA video state */ |
| 212 | /* function values are (values stored in VESAPtr): |
| 213 | * 0 := query & allocate amount of memory to save state |
| 214 | * 1 := save state |
| 215 | * 2 := restore state |
| 216 | * |
| 217 | * function 0 called automatically if function 1 called without |
| 218 | * a previous call to function 0. |
| 219 | */ |
| 220 | |
| 221 | typedef enum { |
| 222 | MODE_QUERY, |
| 223 | MODE_SAVE, |
| 224 | MODE_RESTORE |
| 225 | } vbeSaveRestoreFunction; |
| 226 | |
| 227 | extern _X_EXPORT Bool |
| 228 | |
| 229 | VBESaveRestore(vbeInfoPtr pVbe, vbeSaveRestoreFunction fuction, |
| 230 | pointer *memory, int *size, int *real_mode_pages); |
| 231 | |
| 232 | /* |
| 233 | * INT 5 |
| 234 | */ |
| 235 | |
| 236 | extern _X_EXPORT Bool |
| 237 | VBEBankSwitch(vbeInfoPtr pVbe, unsigned int iBank, int window); |
| 238 | |
| 239 | /* |
| 240 | * INT 6 |
| 241 | */ |
| 242 | |
| 243 | typedef enum { |
| 244 | SCANWID_SET, |
| 245 | SCANWID_GET, |
| 246 | SCANWID_SET_BYTES, |
| 247 | SCANWID_GET_MAX |
| 248 | } vbeScanwidthCommand; |
| 249 | |
| 250 | #define VBESetLogicalScanline(pVbe, width) \ |
| 251 | VBESetGetLogicalScanlineLength(pVbe, SCANWID_SET, width, \ |
| 252 | NULL, NULL, NULL) |
| 253 | #define VBESetLogicalScanlineBytes(pVbe, width) \ |
| 254 | VBESetGetLogicalScanlineLength(pVbe, SCANWID_SET_BYTES, width, \ |
| 255 | NULL, NULL, NULL) |
| 256 | #define VBEGetLogicalScanline(pVbe, pixels, bytes, max) \ |
| 257 | VBESetGetLogicalScanlineLength(pVbe, SCANWID_GET, 0, \ |
| 258 | pixels, bytes, max) |
| 259 | #define VBEGetMaxLogicalScanline(pVbe, pixels, bytes, max) \ |
| 260 | VBESetGetLogicalScanlineLength(pVbe, SCANWID_GET_MAX, 0, \ |
| 261 | pixels, bytes, max) |
| 262 | extern _X_EXPORT Bool VBESetGetLogicalScanlineLength(vbeInfoPtr pVbe, |
| 263 | vbeScanwidthCommand |
| 264 | command, int width, |
| 265 | int *pixels, int *bytes, |
| 266 | int *max); |
| 267 | |
| 268 | /* |
| 269 | * INT 7 |
| 270 | */ |
| 271 | |
| 272 | /* 16 bit code */ |
| 273 | extern _X_EXPORT Bool VBESetDisplayStart(vbeInfoPtr pVbe, int x, int y, |
| 274 | Bool wait_retrace); |
| 275 | extern _X_EXPORT Bool VBEGetDisplayStart(vbeInfoPtr pVbe, int *x, int *y); |
| 276 | |
| 277 | /* |
| 278 | * INT 8 |
| 279 | */ |
| 280 | |
| 281 | /* if bits is 0, then it is a GET */ |
| 282 | extern _X_EXPORT int VBESetGetDACPaletteFormat(vbeInfoPtr pVbe, int bits); |
| 283 | |
| 284 | /* |
| 285 | * INT 9 |
| 286 | */ |
| 287 | |
| 288 | /* |
| 289 | * If getting a palette, the data argument is not used. It will return |
| 290 | * the data. |
| 291 | * If setting a palette, it will return the pointer received on success, |
| 292 | * NULL on failure. |
| 293 | */ |
| 294 | extern _X_EXPORT CARD32 *VBESetGetPaletteData(vbeInfoPtr pVbe, Bool set, |
| 295 | int first, int num, CARD32 *data, |
| 296 | Bool secondary, |
| 297 | Bool wait_retrace); |
| 298 | #define VBEFreePaletteData(data) free(data) |
| 299 | |
| 300 | /* |
| 301 | * INT A |
| 302 | */ |
| 303 | |
| 304 | typedef struct _VBEpmi { |
| 305 | int seg_tbl; |
| 306 | int tbl_off; |
| 307 | int tbl_len; |
| 308 | } VBEpmi; |
| 309 | |
| 310 | extern _X_EXPORT VBEpmi *VBEGetVBEpmi(vbeInfoPtr pVbe); |
| 311 | |
| 312 | #define VESAFreeVBEpmi(pmi) free(pmi) |
| 313 | |
| 314 | /* high level helper functions */ |
| 315 | |
| 316 | typedef struct _vbeModeInfoRec { |
| 317 | int width; |
| 318 | int height; |
| 319 | int bpp; |
| 320 | int n; |
| 321 | struct _vbeModeInfoRec *next; |
| 322 | } vbeModeInfoRec, *vbeModeInfoPtr; |
| 323 | |
| 324 | typedef struct { |
| 325 | CARD8 *state; |
| 326 | CARD8 *pstate; |
| 327 | int statePage; |
| 328 | int stateSize; |
| 329 | int stateMode; |
| 330 | } vbeSaveRestoreRec, *vbeSaveRestorePtr; |
| 331 | |
| 332 | extern _X_EXPORT void |
| 333 | |
| 334 | VBEVesaSaveRestore(vbeInfoPtr pVbe, vbeSaveRestorePtr vbe_sr, |
| 335 | vbeSaveRestoreFunction function); |
| 336 | |
| 337 | extern _X_EXPORT int VBEGetPixelClock(vbeInfoPtr pVbe, int mode, int Clock); |
| 338 | extern _X_EXPORT Bool VBEDPMSSet(vbeInfoPtr pVbe, int mode); |
| 339 | |
| 340 | struct vbePanelID { |
| 341 | short hsize; |
| 342 | short vsize; |
| 343 | short fptype; |
| 344 | char redbpp; |
| 345 | char greenbpp; |
| 346 | char bluebpp; |
| 347 | char reservedbpp; |
| 348 | int reserved_offscreen_mem_size; |
| 349 | int reserved_offscreen_mem_pointer; |
| 350 | char reserved[14]; |
| 351 | }; |
| 352 | |
| 353 | extern _X_EXPORT void VBEInterpretPanelID(ScrnInfoPtr pScrn, |
| 354 | struct vbePanelID *data); |
| 355 | extern _X_EXPORT struct vbePanelID *VBEReadPanelID(vbeInfoPtr pVbe); |
| 356 | |
| 357 | #endif |