KernelLand/Modules/Display/Tegra2Vid/main.c

   1 /**
   2  * main.c
   3  * - Driver core
   4  */
   5 #define DEBUG   0
   6 #define DUMP_REGISTERS  1
   7 #define VERSION ((0<<8)|10)
   8 #include <acess.h>
   9 #include <errno.h>
  10 #include <modules.h>
  11 #include <vfs.h>
  12 #include <fs_devfs.h>
  13 #include <drv_pci.h>
  14 #include <api_drv_video.h>
  15 #include <lib/keyvalue.h>
  16 #include <options.h>    // ARM Arch
  17 #include "tegra2.h"
  18
  19 #define ABS(a)  ((a)>0?(a):-(a))
  20
  21 // === PROTOTYPES ===
  22 // Driver
  23  int    Tegra2Vid_Install(char **Arguments);
  24 void    Tegra2Vid_Uninstall();
  25 // Internal
  26 // Filesystem
  27 size_t  Tegra2Vid_Read(tVFS_Node *node, off_t off, size_t len, void *buffer, Uint Flags);
  28 size_t  Tegra2Vid_Write(tVFS_Node *node, off_t off, size_t len, const void *buffer, Uint Flags);
  29  int    Tegra2Vid_IOCtl(tVFS_Node *node, int id, void *data);
  30 // -- Internals
  31  int    Tegra2Vid_int_SetMode(int Mode);
  32
  33 // === GLOBALS ===
  34 MODULE_DEFINE(0, VERSION, Tegra2Vid, Tegra2Vid_Install, NULL, NULL);
  35 tVFS_NodeType   gTegra2Vid_NodeType = {
  36         .Read = Tegra2Vid_Read,
  37         .Write = Tegra2Vid_Write,
  38         .IOCtl = Tegra2Vid_IOCtl
  39         };
  40 tDevFS_Driver   gTegra2Vid_DriverStruct = {
  41         NULL, "Tegra2Vid",
  42         {.Type = &gTegra2Vid_NodeType}
  43 };
  44 // -- Options
  45 tPAddr  gTegra2Vid_PhysBase = TEGRA2VID_BASE;
  46  int    gbTegra2Vid_IsVersatile = 1;
  47 // -- KeyVal parse rules
  48 const tKeyVal_ParseRules        gTegra2Vid_KeyValueParser = {
  49         NULL,
  50         {
  51                 {"Base", "P", &gTegra2Vid_PhysBase},
  52                 {NULL, NULL, NULL}
  53         }
  54 };
  55 // -- Driver state
  56  int    giTegra2Vid_CurrentMode = 0;
  57  int    giTegra2Vid_BufferMode;
  58 size_t  giTegra2Vid_FramebufferSize;
  59 Uint32  *gpTegra2Vid_IOMem;
  60 tPAddr  gTegra2Vid_FramebufferPhys;
  61 void    *gpTegra2Vid_Framebuffer;
  62 void    *gpTegra2Vid_Cursor;
  63 // -- Misc
  64 tDrvUtil_Video_BufInfo  gTegra2Vid_DrvUtil_BufInfo;
  65 tVideo_IOCtl_Pos        gTegra2Vid_CursorPos;
  66
  67 // === CODE ===
  68 inline void _dumpreg(int i)
  69 {
  70         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x (%s)", i, gpTegra2Vid_IOMem[i],
  71                 (csaTegra2Vid_RegisterNames[i] ? csaTegra2Vid_RegisterNames[i] : "-"));
  72 }
  73
  74 void Tegra2Vid_int_DumpRegisters(void)
  75 {
  76         Log_Debug("Tegra2Vid", "Display CMD Registers");
  77         for( int i = 0x000; i <= 0x01A; i ++ )  _dumpreg(i);
  78         for( int i = 0x028; i <= 0x043; i ++ )  _dumpreg(i);
  79         Log_Debug("Tegra2Vid", "Display COM Registers");
  80         for( int i = 0x300; i <= 0x329; i ++ )  _dumpreg(i);
  81         Log_Debug("Tegra2Vid", "Display DISP Registers");
  82         for( int i = 0x400; i <= 0x446; i ++ )  _dumpreg(i);
  83         for( int i = 0x480; i <= 0x484; i ++ )  _dumpreg(i);
  84         for( int i = 0x4C0; i <= 0x4C1; i ++ )  _dumpreg(i);
  85         Log_Debug("Tegra2Vid", "WINC_A Registers");
  86         for( int i = 0x700; i <= 0x714; i ++ )  _dumpreg(i);
  87         Log_Debug("Tegra2Vid", "WINBUF_A");
  88         for( int i = 0x800; i <= 0x80A; i ++ )  _dumpreg(i);
  89 }
  90
  91 /**
  92  */
  93 int Tegra2Vid_Install(char **Arguments)
  94 {
  95 //      return MODULE_ERR_NOTNEEDED;
  96 //      KeyVal_Parse(&gTegra2Vid_KeyValueParser, Arguments);
  97
  98         gpTegra2Vid_IOMem = (void*)MM_MapHWPages(gTegra2Vid_PhysBase, 256/4);
  99
 100         #if DUMP_REGISTERS
 101 //      Tegra2Vid_int_DumpRegisters();
 102         #endif
 103
 104         // HACK!!!
 105 #if 0
 106         {
 107                 int     w = 1680, h = 1050;
 108                 gpTegra2Vid_IOMem[DC_DISP_DISP_ACTIVE_0] = (h << 16) | w;
 109                 gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0] = (h << 16) | w;
 110                 gpTegra2Vid_IOMem[DC_WIN_A_PRESCALED_SIZE_0] = (h << 16) | w;
 111         }
 112 #endif
 113
 114 #if 0
 115         giTegra2Vid_FramebufferSize =
 116                 (gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0]&0xFFFF)
 117                 *(gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0]>>16)*4;
 118
 119         Log_Debug("Tegra2Vid", "giTegra2Vid_FramebufferSize = 0x%x", giTegra2Vid_FramebufferSize);
 120         gpTegra2Vid_Framebuffer = (void*)MM_MapHWPages(
 121                 gpTegra2Vid_IOMem[DC_WINBUF_A_START_ADDR_0],
 122                 (giTegra2Vid_FramebufferSize+PAGE_SIZE-1)/PAGE_SIZE
 123                 );
 124         Log_Debug("Tegra2Vid", "gpTegra2Vid_Framebuffer = %p", gpTegra2Vid_Framebuffer);
 125         memset(gpTegra2Vid_Framebuffer, 0xFF, giTegra2Vid_FramebufferSize);
 126 #endif
 127
 128 #if 0
 129         gpTegra2Vid_IOMem[DC_WIN_A_WIN_OPTIONS_0] = (1 << 30);
 130         gpTegra2Vid_IOMem[DC_WIN_A_COLOR_DEPTH_0] = 12; // Could be 13 (BGR/RGB)
 131         gpTegra2Vid_IOMem[DC_WIN_A_PRESCALED_SIZE_0] = gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0];
 132         gpTegra2Vid_IOMem[DC_WIN_A_LINE_STRIDE_0] =
 133                 gTegra2Vid_DrvUtil_BufInfo.Pitch =
 134                 1680*4;
 135         gTegra2Vid_DrvUtil_BufInfo.Depth = 32;
 136         gTegra2Vid_DrvUtil_BufInfo.Width = 1680;
 137         gTegra2Vid_DrvUtil_BufInfo.Height = 1050;
 138         gpTegra2Vid_IOMem[DC_CMD_STATE_CONTROL_0] = WIN_A_ACT_REQ;
 139 #elif 0
 140         gpTegra2Vid_IOMem[DC_WIN_A_COLOR_DEPTH_0] = 13; // Could be 13 (BGR/RGB)
 141         gpTegra2Vid_IOMem[DC_WIN_A_LINE_STRIDE_0] =
 142                 gTegra2Vid_DrvUtil_BufInfo.Pitch = 1024*4;
 143         gTegra2Vid_DrvUtil_BufInfo.Depth = 32;
 144         gTegra2Vid_DrvUtil_BufInfo.Width = 1024;
 145         gTegra2Vid_DrvUtil_BufInfo.Height = 768;
 146         gTegra2Vid_DrvUtil_BufInfo.Framebuffer = gpTegra2Vid_Framebuffer;
 147         gpTegra2Vid_IOMem[DC_CMD_STATE_CONTROL_0] = WIN_A_ACT_REQ;
 148 #endif
 149
 150         gpTegra2Vid_Cursor = (void*)MM_AllocDMA(1, 26, NULL);
 151         Log_Debug("Tegra2Vid", "gpTegra2Vid_Cursor = %p", gpTegra2Vid_Cursor);
 152
 153         Tegra2Vid_int_SetMode(0);
 154
 155         DevFS_AddDevice( &gTegra2Vid_DriverStruct );
 156
 157         return 0;
 158 }
 159
 160 /**
 161  * \brief Clean up resources for driver unloading
 162  */
 163 void Tegra2Vid_Uninstall()
 164 {
 165 }
 166
 167 /**
 168  * \brief Read from the framebuffer
 169  */
 170 size_t Tegra2Vid_Read(tVFS_Node *node, off_t off, size_t len, void *buffer, Uint Flags)
 171 {
 172         return 0;
 173 }
 174
 175 /**
 176  * \brief Write to the framebuffer
 177  */
 178 size_t Tegra2Vid_Write(tVFS_Node *Node, off_t Offset, size_t Length, const void *Buffer, Uint Flags)
 179 {
 180         gTegra2Vid_DrvUtil_BufInfo.BufferFormat = giTegra2Vid_BufferMode;
 181         return DrvUtil_Video_WriteLFB(&gTegra2Vid_DrvUtil_BufInfo, Offset, Length, Buffer);
 182 }
 183
 184 const char *csaTegra2Vid_IOCtls[] = {DRV_IOCTLNAMES, DRV_VIDEO_IOCTLNAMES, NULL};
 185
 186 /**
 187  * \brief Handle messages to the device
 188  */
 189 int Tegra2Vid_IOCtl(tVFS_Node *Node, int ID, void *Data)
 190 {
 191          int    ret = -2;
 192         ENTER("pNode iID pData", Node, ID, Data);
 193
 194         switch(ID)
 195         {
 196         BASE_IOCTLS(DRV_TYPE_VIDEO, "Tegra2", VERSION, csaTegra2Vid_IOCtls);
 197
 198         case VIDEO_IOCTL_SETBUFFORMAT:
 199                 DrvUtil_Video_RemoveCursor( &gTegra2Vid_DrvUtil_BufInfo );
 200                 ret = giTegra2Vid_BufferMode;
 201                 if(Data)        giTegra2Vid_BufferMode = *(int*)Data;
 202                 if(gTegra2Vid_DrvUtil_BufInfo.BufferFormat == VIDEO_BUFFMT_TEXT)
 203                         DrvUtil_Video_SetCursor( &gTegra2Vid_DrvUtil_BufInfo, &gDrvUtil_TextModeCursor );
 204                 break;
 205
 206         case VIDEO_IOCTL_GETSETMODE:
 207                 if(Data)
 208                 {
 209                          int    newMode;
 210
 211                         if( !CheckMem(Data, sizeof(int)) )
 212                                 LEAVE_RET('i', -1);
 213
 214                         newMode = *(int*)Data;
 215
 216                         if(newMode < 0 || newMode >= ciTegra2Vid_ModeCount)
 217                                 LEAVE_RET('i', -1);
 218
 219                         if(newMode != giTegra2Vid_CurrentMode)
 220                         {
 221                                 giTegra2Vid_CurrentMode = newMode;
 222                                 Tegra2Vid_int_SetMode( newMode );
 223                         }
 224                 }
 225                 ret = giTegra2Vid_CurrentMode;
 226                 break;
 227
 228         case VIDEO_IOCTL_FINDMODE:
 229                 {
 230                 tVideo_IOCtl_Mode *mode = Data;
 231                  int    closest=0, closestArea, reqArea = 0;
 232                 if(!Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Mode)))
 233                         LEAVE_RET('i', -1);
 234                 if( mode->bpp != 32 )
 235                         LEAVE_RET('i', 0);
 236                 if( mode->flags != 0 )
 237                         LEAVE_RET('i', 0);
 238
 239                 // DEBUG!!!
 240                 mode->id = 1;   mode->width = 1680;     mode->height = 1050;
 241                 mode->id = 0;   mode->width = 1024;     mode->height = 768;
 242
 243                 // DEBUG!
 244                 for( int i = 0x800; i <= 0x80A; i ++ )  _dumpreg(i);
 245                 break;
 246
 247                 ret = 0;
 248
 249                 for( int i = 0; i < ciTegra2Vid_ModeCount; i ++ )
 250                 {
 251                          int    area;
 252                         if(mode->width == caTegra2Vid_Modes[i].W
 253                         && mode->height == caTegra2Vid_Modes[i].H) {
 254                                 mode->id = i;
 255                                 ret = 1;
 256                                 break;
 257                         }
 258
 259                         area = caTegra2Vid_Modes[i].W * caTegra2Vid_Modes[i].H;
 260                         if(!reqArea) {
 261                                 reqArea = mode->width * mode->height;
 262                                 closest = i;
 263                                 closestArea = area;
 264                         }
 265                         else if( ABS(area - reqArea) < ABS(closestArea - reqArea) ) {
 266                                 closest = i;
 267                                 closestArea = area;
 268                         }
 269                 }
 270
 271                 if( ret == 0 )
 272                 {
 273                         mode->id = closest;
 274                         ret = 1;
 275                 }
 276                 mode->width = caTegra2Vid_Modes[mode->id].W;
 277                 mode->height = caTegra2Vid_Modes[mode->id].H;
 278                 break;
 279                 }
 280
 281         case VIDEO_IOCTL_MODEINFO:
 282                 {
 283                 tVideo_IOCtl_Mode *mode = Data;
 284                 if(!Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Mode)))
 285                         LEAVE_RET('i', -1);
 286                 if(mode->id < 0 || mode->id >= ciTegra2Vid_ModeCount)
 287                         LEAVE_RET('i', 0);
 288
 289
 290                 mode->bpp = 32;
 291                 mode->flags = 0;
 292                 mode->width = caTegra2Vid_Modes[mode->id].W;
 293                 mode->height = caTegra2Vid_Modes[mode->id].H;
 294
 295                 ret = 1;
 296                 break;
 297                 }
 298
 299         case VIDEO_IOCTL_SETCURSOR:
 300                 if( !Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Pos)) )
 301                         LEAVE_RET('i', -1);
 302
 303                 DrvUtil_Video_RemoveCursor( &gTegra2Vid_DrvUtil_BufInfo );
 304
 305                 gTegra2Vid_CursorPos = *(tVideo_IOCtl_Pos*)Data;
 306                 // TODO: Set DC_DISP_CURSOR_POSITION_0
 307                 // TODO: Set DC_DISP_CURSOR_FOREGROUND_0 etc from image?
 308                 if(gTegra2Vid_DrvUtil_BufInfo.BufferFormat == VIDEO_BUFFMT_TEXT)
 309                         DrvUtil_Video_DrawCursor(
 310                                 &gTegra2Vid_DrvUtil_BufInfo,
 311                                 gTegra2Vid_CursorPos.x*giVT_CharWidth,
 312                                 gTegra2Vid_CursorPos.y*giVT_CharHeight
 313                                 );
 314                 else
 315                         DrvUtil_Video_DrawCursor(
 316                                 &gTegra2Vid_DrvUtil_BufInfo,
 317                                 gTegra2Vid_CursorPos.x,
 318                                 gTegra2Vid_CursorPos.y
 319                                 );
 320                 break;
 321
 322         default:
 323                 LEAVE('i', -2);
 324                 return -2;
 325         }
 326
 327         LEAVE('i', ret);
 328         return ret;
 329 }
 330
 331 //
 332 //
 333 //
 334
 335 int Tegra2Vid_int_SetMode(int Mode)
 336 {
 337         const struct sTegra2_Disp_Mode  *mode = &caTegra2Vid_Modes[Mode];
 338          int    w = mode->W, h = mode->H;       // Horizontal/Vertical Active
 339         gpTegra2Vid_IOMem[DC_DISP_REF_TO_SYNC_0] = (1 << 16) | 11;      // TODO: <--
 340         gpTegra2Vid_IOMem[DC_DISP_SYNC_WIDTH_0]  = (mode->HS << 16)  | mode->HS;
 341         gpTegra2Vid_IOMem[DC_DISP_BACK_PORCH_0]  = (mode->VBP << 16) | mode->HBP;
 342         gpTegra2Vid_IOMem[DC_DISP_DISP_ACTIVE_0] = (mode->H << 16)   | mode->W;
 343         gpTegra2Vid_IOMem[DC_DISP_FRONT_PORCH_0] = (mode->VFP << 16) | mode->HFP;
 344
 345         gpTegra2Vid_IOMem[DC_DISP_DISP_COLOR_CONTROL_0] = 0x8;  // BASE888 - TODO: useful?
 346         gpTegra2Vid_IOMem[DC_WIN_A_POSITION_0] = 0;
 347         gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0] = (h << 16) | w;
 348         gpTegra2Vid_IOMem[DC_WIN_A_COLOR_DEPTH_0] = 12; // Could be 13 (BGR/RGB)
 349         gpTegra2Vid_IOMem[DC_WIN_A_PRESCALED_SIZE_0] = (h << 16) | w;
 350         gpTegra2Vid_IOMem[DC_WIN_A_LINE_STRIDE_0] = w * 4;
 351         gpTegra2Vid_IOMem[DC_WIN_A_DV_CONTROL_0] = 0;
 352
 353         gpTegra2Vid_IOMem[DC_DISP_BORDER_COLOR_0] = 0x70F010;
 354
 355         Log_Debug("Tegra2Vid", "Mode %i (%ix%i) selected", Mode, w, h);
 356
 357         if( !gpTegra2Vid_Framebuffer || w*h*4 != giTegra2Vid_FramebufferSize )
 358         {
 359                 if( gpTegra2Vid_Framebuffer )
 360                 {
 361                         // TODO: Free framebuffer for reallocation
 362                 }
 363
 364                 giTegra2Vid_FramebufferSize = w*h*4;
 365
 366                 // Uses RAM I think
 367                 gpTegra2Vid_Framebuffer = (void*)MM_AllocDMA(
 368                         (giTegra2Vid_FramebufferSize + PAGE_SIZE-1) / PAGE_SIZE,
 369                         32,
 370                         &gTegra2Vid_FramebufferPhys
 371                         );
 372                 if( !gpTegra2Vid_Framebuffer ) {
 373                         Log_Error("Tegra2Vid", "Can't allocate pages for 0x%x byte framebuffer",
 374                                 giTegra2Vid_FramebufferSize);
 375                         return -1;
 376                 }
 377                 Log_Debug("Tegra2Vid", "0x%x byte framebuffer at %p (%P phys)",
 378                                 giTegra2Vid_FramebufferSize,
 379                                 gpTegra2Vid_Framebuffer,
 380                                 gTegra2Vid_FramebufferPhys
 381                                 );
 382
 383                 // Tell hardware
 384                 gpTegra2Vid_IOMem[DC_WINBUF_A_START_ADDR_0] = gTegra2Vid_FramebufferPhys;
 385                 gpTegra2Vid_IOMem[DC_WINBUF_A_ADDR_V_OFFSET_0] = 0;     // Y offset
 386                 gpTegra2Vid_IOMem[DC_WINBUF_A_ADDR_H_OFFSET_0] = 0;     // X offset
 387         }
 388
 389         gpTegra2Vid_IOMem[DC_CMD_STATE_CONTROL_0] = WIN_A_ACT_REQ;
 390         gpTegra2Vid_IOMem[DC_CMD_STATE_CONTROL_0] = GEN_ACT_REQ;
 391
 392         // DEBUG!
 393         for( int i = 0x800; i <= 0x80A; i ++ )  _dumpreg(i);
 394
 395         return 0;
 396 }