KernelLand/Modules/Display/Tegra2Vid/main.c

   1 /**\r
   2  * main.c\r
   3  * - Driver core\r
   4  */\r
   5 #define DEBUG   0\r
   6 #define VERSION ((0<<8)|10)\r
   7 #include <acess.h>\r
   8 #include <errno.h>\r
   9 #include <modules.h>\r
  10 #include <vfs.h>\r
  11 #include <fs_devfs.h>\r
  12 #include <drv_pci.h>\r
  13 #include <api_drv_video.h>\r
  14 #include <lib/keyvalue.h>\r
  15 #include <options.h>    // ARM Arch\r
  16 #include "tegra2.h"\r
  17 \r
  18 #define ABS(a)  ((a)>0?(a):-(a))\r
  19 \r
  20 // === PROTOTYPES ===\r
  21 // Driver\r
  22  int    Tegra2Vid_Install(char **Arguments);\r
  23 void    Tegra2Vid_Uninstall();\r
  24 // Internal\r
  25 // Filesystem\r
  26 Uint64  Tegra2Vid_Read(tVFS_Node *node, Uint64 off, Uint64 len, void *buffer);\r
  27 Uint64  Tegra2Vid_Write(tVFS_Node *node, Uint64 off, Uint64 len, void *buffer);\r
  28  int    Tegra2Vid_IOCtl(tVFS_Node *node, int id, void *data);\r
  29 // -- Internals\r
  30  int    Tegra2Vid_int_SetMode(int Mode);\r
  31 \r
  32 // === GLOBALS ===\r
  33 MODULE_DEFINE(0, VERSION, Tegra2Vid, Tegra2Vid_Install, NULL, NULL);\r
  34 tDevFS_Driver   gTegra2Vid_DriverStruct = {\r
  35         NULL, "Tegra2Vid",\r
  36         {\r
  37         .Read = Tegra2Vid_Read,\r
  38         .Write = Tegra2Vid_Write,\r
  39         .IOCtl = Tegra2Vid_IOCtl\r
  40         }\r
  41 };\r
  42 // -- Options\r
  43 tPAddr  gTegra2Vid_PhysBase = TEGRA2VID_BASE;\r
  44  int    gbTegra2Vid_IsVersatile = 1;\r
  45 // -- KeyVal parse rules\r
  46 const tKeyVal_ParseRules        gTegra2Vid_KeyValueParser = {\r
  47         NULL,\r
  48         {\r
  49                 {"Base", "P", &gTegra2Vid_PhysBase},\r
  50                 {NULL, NULL, NULL}\r
  51         }\r
  52 };\r
  53 // -- Driver state\r
  54  int    giTegra2Vid_CurrentMode = 0;\r
  55  int    giTegra2Vid_BufferMode;\r
  56 size_t  giTegra2Vid_FramebufferSize;\r
  57 Uint32  *gpTegra2Vid_IOMem;\r
  58 tPAddr  gTegra2Vid_FramebufferPhys;\r
  59 void    *gpTegra2Vid_Framebuffer;\r
  60 // -- Misc\r
  61 tDrvUtil_Video_BufInfo  gTegra2Vid_DrvUtil_BufInfo;\r
  62 tVideo_IOCtl_Pos        gTegra2Vid_CursorPos;\r
  63 \r
  64 // === CODE ===\r
  65 /**\r
  66  */\r
  67 int Tegra2Vid_Install(char **Arguments)\r
  68 {\r
  69         return MODULE_ERR_NOTNEEDED;\r
  70 //      KeyVal_Parse(&gTegra2Vid_KeyValueParser, Arguments);\r
  71 \r
  72         gpTegra2Vid_IOMem = (void*)MM_MapHWPages(gTegra2Vid_PhysBase, 256/4);\r
  73         {\r
  74                 Log_Debug("Tegra2Vid", "Display CMD Registers");\r
  75                 for( int i = 0x000; i <= 0x01A; i ++ )\r
  76                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  77                 for( int i = 0x028; i <= 0x043; i ++ )\r
  78                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  79                 Log_Debug("Tegra2Vid", "Display COM Registers");\r
  80                 for( int i = 0x300; i <= 0x329; i ++ )\r
  81                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  82                 Log_Debug("Tegra2Vid", "Display DISP Registers");\r
  83                 for( int i = 0x400; i <= 0x446; i ++ )\r
  84                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  85                 for( int i = 0x480; i <= 0x484; i ++ )\r
  86                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  87                 for( int i = 0x4C0; i <= 0x4C1; i ++ )\r
  88                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  89 \r
  90                 Log_Debug("Tegra2Vid", "WINC_A Registers");\r
  91                 for( int i = 0x700; i <= 0x714; i ++ )\r
  92                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  93                 Log_Debug("Tegra2Vid", "WINBUF_A");\r
  94                 for( int i = 0x800; i <= 0x80A; i ++ )\r
  95                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  96         }\r
  97 //      return 1;\r
  98 \r
  99         // HACK!!!\r
 100 //      {\r
 101 //              int     w = 1980, h = 1080;\r
 102 //              gpTegra2Vid_IOMem[DC_DISP_DISP_ACTIVE_0] = (h << 16) | w;\r
 103 //              gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0] = (h << 16) | w;\r
 104 //              gpTegra2Vid_IOMem[DC_WIN_A_PRESCALED_SIZE_0] = (h << 16) | w;\r
 105 //      }\r
 106 \r
 107         giTegra2Vid_FramebufferSize =\r
 108                 (gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0]&0xFFFF)\r
 109                 *(gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0]>>16)*4;\r
 110 \r
 111         Log_Debug("Tegra2Vid", "giTegra2Vid_FramebufferSize = 0x%x", giTegra2Vid_FramebufferSize);\r
 112         gpTegra2Vid_Framebuffer = MM_MapHWPages(\r
 113                 gpTegra2Vid_IOMem[DC_WINBUF_A_START_ADDR_0],\r
 114                 (giTegra2Vid_FramebufferSize+PAGE_SIZE-1)/PAGE_SIZE\r
 115                 );\r
 116         memset(gpTegra2Vid_Framebuffer, 0xFF, 0x1000);\r
 117 \r
 118         gpTegra2Vid_IOMem[DC_WIN_A_WIN_OPTIONS_0] &= ~0x40;\r
 119         gpTegra2Vid_IOMem[DC_WIN_A_COLOR_DEPTH_0] = 12; // Could be 13 (BGR/RGB)\r
 120         gTegra2Vid_DrvUtil_BufInfo.Width = 1024;\r
 121         gTegra2Vid_DrvUtil_BufInfo.Height = 768;\r
 122         gTegra2Vid_DrvUtil_BufInfo.Pitch = 1024*4;\r
 123         gTegra2Vid_DrvUtil_BufInfo.Depth = 32;\r
 124         gTegra2Vid_DrvUtil_BufInfo.Framebuffer = gpTegra2Vid_Framebuffer;\r
 125 \r
 126 \r
 127 //      Tegra2Vid_int_SetMode(4);\r
 128 \r
 129         DevFS_AddDevice( &gTegra2Vid_DriverStruct );\r
 130 \r
 131         return 0;\r
 132 }\r
 133 \r
 134 /**\r
 135  * \brief Clean up resources for driver unloading\r
 136  */\r
 137 void Tegra2Vid_Uninstall()\r
 138 {\r
 139 }\r
 140 \r
 141 /**\r
 142  * \brief Read from the framebuffer\r
 143  */\r
 144 Uint64 Tegra2Vid_Read(tVFS_Node *node, Uint64 off, Uint64 len, void *buffer)\r
 145 {\r
 146         return 0;\r
 147 }\r
 148 \r
 149 /**\r
 150  * \brief Write to the framebuffer\r
 151  */\r
 152 Uint64 Tegra2Vid_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)\r
 153 {\r
 154         gTegra2Vid_DrvUtil_BufInfo.BufferFormat = giTegra2Vid_BufferMode;\r
 155         return DrvUtil_Video_WriteLFB(&gTegra2Vid_DrvUtil_BufInfo, Offset, Length, Buffer);\r
 156 }\r
 157 \r
 158 const char *csaTegra2Vid_IOCtls[] = {DRV_IOCTLNAMES, DRV_VIDEO_IOCTLNAMES, NULL};\r
 159 \r
 160 /**\r
 161  * \brief Handle messages to the device\r
 162  */\r
 163 int Tegra2Vid_IOCtl(tVFS_Node *Node, int ID, void *Data)\r
 164 {\r
 165          int    ret = -2;\r
 166         ENTER("pNode iID pData", Node, ID, Data);\r
 167         \r
 168         switch(ID)\r
 169         {\r
 170         BASE_IOCTLS(DRV_TYPE_VIDEO, "PL110", VERSION, csaTegra2Vid_IOCtls);\r
 171 \r
 172         case VIDEO_IOCTL_SETBUFFORMAT:\r
 173                 DrvUtil_Video_RemoveCursor( &gTegra2Vid_DrvUtil_BufInfo );\r
 174                 ret = giTegra2Vid_BufferMode;\r
 175                 if(Data)        giTegra2Vid_BufferMode = *(int*)Data;\r
 176                 if(gTegra2Vid_DrvUtil_BufInfo.BufferFormat == VIDEO_BUFFMT_TEXT)\r
 177                         DrvUtil_Video_SetCursor( &gTegra2Vid_DrvUtil_BufInfo, &gDrvUtil_TextModeCursor );\r
 178                 break;\r
 179         \r
 180         case VIDEO_IOCTL_GETSETMODE:\r
 181                 if(Data)\r
 182                 {\r
 183                          int    newMode;\r
 184                         \r
 185                         if( !CheckMem(Data, sizeof(int)) )\r
 186                                 LEAVE_RET('i', -1);\r
 187                         \r
 188                         newMode = *(int*)Data;\r
 189                         \r
 190                         if(newMode < 0 || newMode >= ciTegra2Vid_ModeCount)\r
 191                                 LEAVE_RET('i', -1);\r
 192 \r
 193                         if(newMode != giTegra2Vid_CurrentMode)\r
 194                         {\r
 195                                 giTegra2Vid_CurrentMode = newMode;\r
 196                                 Tegra2Vid_int_SetMode( newMode );\r
 197                         }\r
 198                 }\r
 199                 ret = giTegra2Vid_CurrentMode;\r
 200                 break;\r
 201         \r
 202         case VIDEO_IOCTL_FINDMODE:\r
 203                 {\r
 204                 tVideo_IOCtl_Mode *mode = Data;\r
 205                  int    closest, closestArea, reqArea = 0;\r
 206                 if(!Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Mode)))\r
 207                         LEAVE_RET('i', -1);\r
 208                 if( mode->bpp != 32 )\r
 209                         LEAVE_RET('i', 0);\r
 210                 if( mode->flags != 0 )\r
 211                         LEAVE_RET('i', 0);\r
 212 \r
 213                 ret = 0;\r
 214 \r
 215                 for( int i = 0; i < ciTegra2Vid_ModeCount; i ++ )\r
 216                 {\r
 217                          int    area;\r
 218                         if(mode->width == caTegra2Vid_Modes[i].W && mode->height == caTegra2Vid_Modes[i].H) {\r
 219                                 mode->id = i;\r
 220                                 ret = 1;\r
 221                                 break;\r
 222                         }\r
 223                         \r
 224                         area = caTegra2Vid_Modes[i].W * caTegra2Vid_Modes[i].H;\r
 225                         if(!reqArea) {\r
 226                                 reqArea = mode->width * mode->height;\r
 227                                 closest = i;\r
 228                                 closestArea = area;\r
 229                         }\r
 230                         else if( ABS(area - reqArea) < ABS(closestArea - reqArea) ) {\r
 231                                 closest = i;\r
 232                                 closestArea = area;\r
 233                         }\r
 234                 }\r
 235                 \r
 236                 if( ret == 0 )\r
 237                 {\r
 238                         mode->id = closest;\r
 239                         ret = 1;\r
 240                 }\r
 241                 mode->width = caTegra2Vid_Modes[mode->id].W;\r
 242                 mode->height = caTegra2Vid_Modes[mode->id].H;\r
 243                 break;\r
 244                 }\r
 245         \r
 246         case VIDEO_IOCTL_MODEINFO:\r
 247                 {\r
 248                 tVideo_IOCtl_Mode *mode = Data;\r
 249                 if(!Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Mode)))\r
 250                         LEAVE_RET('i', -1);\r
 251                 if(mode->id < 0 || mode->id >= ciTegra2Vid_ModeCount)\r
 252                         LEAVE_RET('i', 0);\r
 253                 \r
 254 \r
 255                 mode->bpp = 32;\r
 256                 mode->flags = 0;\r
 257                 mode->width = caTegra2Vid_Modes[mode->id].W;\r
 258                 mode->height = caTegra2Vid_Modes[mode->id].H;\r
 259 \r
 260                 ret = 1;\r
 261                 break;\r
 262                 }\r
 263         \r
 264         case VIDEO_IOCTL_SETCURSOR:\r
 265                 if( !Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Pos)) )\r
 266                         LEAVE_RET('i', -1);\r
 267 \r
 268                 DrvUtil_Video_RemoveCursor( &gTegra2Vid_DrvUtil_BufInfo );\r
 269                 \r
 270                 gTegra2Vid_CursorPos = *(tVideo_IOCtl_Pos*)Data;\r
 271                 if(gTegra2Vid_DrvUtil_BufInfo.BufferFormat == VIDEO_BUFFMT_TEXT)\r
 272                         DrvUtil_Video_DrawCursor(\r
 273                                 &gTegra2Vid_DrvUtil_BufInfo,\r
 274                                 gTegra2Vid_CursorPos.x*giVT_CharWidth,\r
 275                                 gTegra2Vid_CursorPos.y*giVT_CharHeight\r
 276                                 );\r
 277                 else\r
 278                         DrvUtil_Video_DrawCursor(\r
 279                                 &gTegra2Vid_DrvUtil_BufInfo,\r
 280                                 gTegra2Vid_CursorPos.x,\r
 281                                 gTegra2Vid_CursorPos.y\r
 282                                 );\r
 283                 break;\r
 284         \r
 285         default:\r
 286                 LEAVE('i', -2);\r
 287                 return -2;\r
 288         }\r
 289         \r
 290         LEAVE('i', ret);\r
 291         return ret;\r
 292 }\r
 293 \r
 294 //\r
 295 //\r
 296 //\r
 297 \r
 298 int Tegra2Vid_int_SetMode(int Mode)\r
 299 {\r
 300         const struct sTegra2_Disp_Mode  *mode = &caTegra2Vid_Modes[Mode];\r
 301          int    w = mode->W, h = mode->H;       // Horizontal/Vertical Active\r
 302         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_FRONT_PORCH_0) = (mode->VFP << 16) | mode->HFP; \r
 303         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_SYNC_WIDTH_0)  = (mode->HS << 16)  | mode->HS;\r
 304         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_BACK_PORCH_0)  = (mode->VBP << 16) | mode->HBP;\r
 305         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_DISP_ACTIVE_0) = (mode->H << 16)   | mode->W;\r
 306 \r
 307         *(Uint32*)(gpTegra2Vid_IOMem + DC_WIN_A_POSITION_0) = 0;\r
 308         *(Uint32*)(gpTegra2Vid_IOMem + DC_WIN_A_SIZE_0) = (h << 16) | w;\r
 309         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_DISP_COLOR_CONTROL_0) = 0x8;     // BASE888\r
 310         *(Uint32*)(gpTegra2Vid_IOMem + DC_WIN_A_COLOR_DEPTH_0) = 12;    // Could be 13 (BGR/RGB)\r
 311         *(Uint32*)(gpTegra2Vid_IOMem + DC_WIN_A_PRESCALED_SIZE_0) = (h << 16) | w;\r
 312 \r
 313         Log_Debug("Tegra2Vid", "Mode %i (%ix%i) selected", Mode, w, h);\r
 314 \r
 315         if( !gpTegra2Vid_Framebuffer || w*h*4 != giTegra2Vid_FramebufferSize )\r
 316         {\r
 317                 if( gpTegra2Vid_Framebuffer )\r
 318                 {\r
 319                         // TODO: Free framebuffer for reallocation\r
 320                 }\r
 321 \r
 322                 giTegra2Vid_FramebufferSize = w*h*4;            \r
 323 \r
 324                 gpTegra2Vid_Framebuffer = (void*)MM_AllocDMA(\r
 325                         (giTegra2Vid_FramebufferSize + PAGE_SIZE-1) / PAGE_SIZE,\r
 326                         32,\r
 327                         &gTegra2Vid_FramebufferPhys\r
 328                         );\r
 329                 // TODO: Catch allocation failures\r
 330                 Log_Debug("Tegra2Vid", "0x%x byte framebuffer at %p (%P phys)",\r
 331                                 giTegra2Vid_FramebufferSize,\r
 332                                 gpTegra2Vid_Framebuffer,\r
 333                                 gTegra2Vid_FramebufferPhys\r
 334                                 );\r
 335                 \r
 336                 // Tell hardware\r
 337                 *(Uint32*)(gpTegra2Vid_IOMem + DC_WINBUF_A_START_ADDR_0) = gTegra2Vid_FramebufferPhys;\r
 338                 *(Uint32*)(gpTegra2Vid_IOMem + DC_WINBUF_A_ADDR_V_OFFSET_0) = 0;        // Y offset\r
 339                 *(Uint32*)(gpTegra2Vid_IOMem + DC_WINBUF_A_ADDR_H_OFFSET_0) = 0;        // X offset\r
 340         }\r
 341 \r
 342         return 0;\r
 343 }\r