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 size_t  Tegra2Vid_Read(tVFS_Node *node, off_t off, size_t len, void *buffer);\r
  27 size_t  Tegra2Vid_Write(tVFS_Node *node, off_t off, size_t len, const 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 tVFS_NodeType   gTegra2Vid_NodeType = {\r
  35         .Read = Tegra2Vid_Read,\r
  36         .Write = Tegra2Vid_Write,\r
  37         .IOCtl = Tegra2Vid_IOCtl\r
  38         };\r
  39 tDevFS_Driver   gTegra2Vid_DriverStruct = {\r
  40         NULL, "Tegra2Vid",\r
  41         {.Type = &gTegra2Vid_NodeType}\r
  42 };\r
  43 // -- Options\r
  44 tPAddr  gTegra2Vid_PhysBase = TEGRA2VID_BASE;\r
  45  int    gbTegra2Vid_IsVersatile = 1;\r
  46 // -- KeyVal parse rules\r
  47 const tKeyVal_ParseRules        gTegra2Vid_KeyValueParser = {\r
  48         NULL,\r
  49         {\r
  50                 {"Base", "P", &gTegra2Vid_PhysBase},\r
  51                 {NULL, NULL, NULL}\r
  52         }\r
  53 };\r
  54 // -- Driver state\r
  55  int    giTegra2Vid_CurrentMode = 0;\r
  56  int    giTegra2Vid_BufferMode;\r
  57 size_t  giTegra2Vid_FramebufferSize;\r
  58 Uint32  *gpTegra2Vid_IOMem;\r
  59 tPAddr  gTegra2Vid_FramebufferPhys;\r
  60 void    *gpTegra2Vid_Framebuffer;\r
  61 // -- Misc\r
  62 tDrvUtil_Video_BufInfo  gTegra2Vid_DrvUtil_BufInfo;\r
  63 tVideo_IOCtl_Pos        gTegra2Vid_CursorPos;\r
  64 \r
  65 // === CODE ===\r
  66 /**\r
  67  */\r
  68 int Tegra2Vid_Install(char **Arguments)\r
  69 {\r
  70         return MODULE_ERR_NOTNEEDED;\r
  71 //      KeyVal_Parse(&gTegra2Vid_KeyValueParser, Arguments);\r
  72 \r
  73         gpTegra2Vid_IOMem = (void*)MM_MapHWPages(gTegra2Vid_PhysBase, 256/4);\r
  74         {\r
  75                 Log_Debug("Tegra2Vid", "Display CMD Registers");\r
  76                 for( int i = 0x000; i <= 0x01A; i ++ )\r
  77                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  78                 for( int i = 0x028; i <= 0x043; i ++ )\r
  79                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  80                 Log_Debug("Tegra2Vid", "Display COM Registers");\r
  81                 for( int i = 0x300; i <= 0x329; i ++ )\r
  82                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  83                 Log_Debug("Tegra2Vid", "Display DISP Registers");\r
  84                 for( int i = 0x400; i <= 0x446; i ++ )\r
  85                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  86                 for( int i = 0x480; i <= 0x484; i ++ )\r
  87                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  88                 for( int i = 0x4C0; i <= 0x4C1; i ++ )\r
  89                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  90 \r
  91                 Log_Debug("Tegra2Vid", "WINC_A Registers");\r
  92                 for( int i = 0x700; i <= 0x714; i ++ )\r
  93                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  94                 Log_Debug("Tegra2Vid", "WINBUF_A");\r
  95                 for( int i = 0x800; i <= 0x80A; i ++ )\r
  96                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  97         }\r
  98 //      return 1;\r
  99 \r
 100         // HACK!!!\r
 101 //      {\r
 102 //              int     w = 1980, h = 1080;\r
 103 //              gpTegra2Vid_IOMem[DC_DISP_DISP_ACTIVE_0] = (h << 16) | w;\r
 104 //              gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0] = (h << 16) | w;\r
 105 //              gpTegra2Vid_IOMem[DC_WIN_A_PRESCALED_SIZE_0] = (h << 16) | w;\r
 106 //      }\r
 107 \r
 108         giTegra2Vid_FramebufferSize =\r
 109                 (gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0]&0xFFFF)\r
 110                 *(gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0]>>16)*4;\r
 111 \r
 112         Log_Debug("Tegra2Vid", "giTegra2Vid_FramebufferSize = 0x%x", giTegra2Vid_FramebufferSize);\r
 113         gpTegra2Vid_Framebuffer = (void*)MM_MapHWPages(\r
 114                 gpTegra2Vid_IOMem[DC_WINBUF_A_START_ADDR_0],\r
 115                 (giTegra2Vid_FramebufferSize+PAGE_SIZE-1)/PAGE_SIZE\r
 116                 );\r
 117         memset(gpTegra2Vid_Framebuffer, 0xFF, 0x1000);\r
 118 \r
 119         gpTegra2Vid_IOMem[DC_WIN_A_WIN_OPTIONS_0] &= ~0x40;\r
 120         gpTegra2Vid_IOMem[DC_WIN_A_COLOR_DEPTH_0] = 12; // Could be 13 (BGR/RGB)\r
 121         gTegra2Vid_DrvUtil_BufInfo.Width = 1024;\r
 122         gTegra2Vid_DrvUtil_BufInfo.Height = 768;\r
 123         gTegra2Vid_DrvUtil_BufInfo.Pitch = 1024*4;\r
 124         gTegra2Vid_DrvUtil_BufInfo.Depth = 32;\r
 125         gTegra2Vid_DrvUtil_BufInfo.Framebuffer = gpTegra2Vid_Framebuffer;\r
 126 \r
 127 \r
 128 //      Tegra2Vid_int_SetMode(4);\r
 129 \r
 130         DevFS_AddDevice( &gTegra2Vid_DriverStruct );\r
 131 \r
 132         return 0;\r
 133 }\r
 134 \r
 135 /**\r
 136  * \brief Clean up resources for driver unloading\r
 137  */\r
 138 void Tegra2Vid_Uninstall()\r
 139 {\r
 140 }\r
 141 \r
 142 /**\r
 143  * \brief Read from the framebuffer\r
 144  */\r
 145 size_t Tegra2Vid_Read(tVFS_Node *node, off_t off, size_t len, void *buffer)\r
 146 {\r
 147         return 0;\r
 148 }\r
 149 \r
 150 /**\r
 151  * \brief Write to the framebuffer\r
 152  */\r
 153 size_t Tegra2Vid_Write(tVFS_Node *Node, off_t Offset, size_t Length, const void *Buffer)\r
 154 {\r
 155         gTegra2Vid_DrvUtil_BufInfo.BufferFormat = giTegra2Vid_BufferMode;\r
 156         return DrvUtil_Video_WriteLFB(&gTegra2Vid_DrvUtil_BufInfo, Offset, Length, Buffer);\r
 157 }\r
 158 \r
 159 const char *csaTegra2Vid_IOCtls[] = {DRV_IOCTLNAMES, DRV_VIDEO_IOCTLNAMES, NULL};\r
 160 \r
 161 /**\r
 162  * \brief Handle messages to the device\r
 163  */\r
 164 int Tegra2Vid_IOCtl(tVFS_Node *Node, int ID, void *Data)\r
 165 {\r
 166          int    ret = -2;\r
 167         ENTER("pNode iID pData", Node, ID, Data);\r
 168         \r
 169         switch(ID)\r
 170         {\r
 171         BASE_IOCTLS(DRV_TYPE_VIDEO, "PL110", VERSION, csaTegra2Vid_IOCtls);\r
 172 \r
 173         case VIDEO_IOCTL_SETBUFFORMAT:\r
 174                 DrvUtil_Video_RemoveCursor( &gTegra2Vid_DrvUtil_BufInfo );\r
 175                 ret = giTegra2Vid_BufferMode;\r
 176                 if(Data)        giTegra2Vid_BufferMode = *(int*)Data;\r
 177                 if(gTegra2Vid_DrvUtil_BufInfo.BufferFormat == VIDEO_BUFFMT_TEXT)\r
 178                         DrvUtil_Video_SetCursor( &gTegra2Vid_DrvUtil_BufInfo, &gDrvUtil_TextModeCursor );\r
 179                 break;\r
 180         \r
 181         case VIDEO_IOCTL_GETSETMODE:\r
 182                 if(Data)\r
 183                 {\r
 184                          int    newMode;\r
 185                         \r
 186                         if( !CheckMem(Data, sizeof(int)) )\r
 187                                 LEAVE_RET('i', -1);\r
 188                         \r
 189                         newMode = *(int*)Data;\r
 190                         \r
 191                         if(newMode < 0 || newMode >= ciTegra2Vid_ModeCount)\r
 192                                 LEAVE_RET('i', -1);\r
 193 \r
 194                         if(newMode != giTegra2Vid_CurrentMode)\r
 195                         {\r
 196                                 giTegra2Vid_CurrentMode = newMode;\r
 197                                 Tegra2Vid_int_SetMode( newMode );\r
 198                         }\r
 199                 }\r
 200                 ret = giTegra2Vid_CurrentMode;\r
 201                 break;\r
 202         \r
 203         case VIDEO_IOCTL_FINDMODE:\r
 204                 {\r
 205                 tVideo_IOCtl_Mode *mode = Data;\r
 206                  int    closest=0, closestArea, reqArea = 0;\r
 207                 if(!Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Mode)))\r
 208                         LEAVE_RET('i', -1);\r
 209                 if( mode->bpp != 32 )\r
 210                         LEAVE_RET('i', 0);\r
 211                 if( mode->flags != 0 )\r
 212                         LEAVE_RET('i', 0);\r
 213 \r
 214                 ret = 0;\r
 215 \r
 216                 for( int i = 0; i < ciTegra2Vid_ModeCount; i ++ )\r
 217                 {\r
 218                          int    area;\r
 219                         if(mode->width == caTegra2Vid_Modes[i].W && mode->height == caTegra2Vid_Modes[i].H) {\r
 220                                 mode->id = i;\r
 221                                 ret = 1;\r
 222                                 break;\r
 223                         }\r
 224                         \r
 225                         area = caTegra2Vid_Modes[i].W * caTegra2Vid_Modes[i].H;\r
 226                         if(!reqArea) {\r
 227                                 reqArea = mode->width * mode->height;\r
 228                                 closest = i;\r
 229                                 closestArea = area;\r
 230                         }\r
 231                         else if( ABS(area - reqArea) < ABS(closestArea - reqArea) ) {\r
 232                                 closest = i;\r
 233                                 closestArea = area;\r
 234                         }\r
 235                 }\r
 236                 \r
 237                 if( ret == 0 )\r
 238                 {\r
 239                         mode->id = closest;\r
 240                         ret = 1;\r
 241                 }\r
 242                 mode->width = caTegra2Vid_Modes[mode->id].W;\r
 243                 mode->height = caTegra2Vid_Modes[mode->id].H;\r
 244                 break;\r
 245                 }\r
 246         \r
 247         case VIDEO_IOCTL_MODEINFO:\r
 248                 {\r
 249                 tVideo_IOCtl_Mode *mode = Data;\r
 250                 if(!Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Mode)))\r
 251                         LEAVE_RET('i', -1);\r
 252                 if(mode->id < 0 || mode->id >= ciTegra2Vid_ModeCount)\r
 253                         LEAVE_RET('i', 0);\r
 254                 \r
 255 \r
 256                 mode->bpp = 32;\r
 257                 mode->flags = 0;\r
 258                 mode->width = caTegra2Vid_Modes[mode->id].W;\r
 259                 mode->height = caTegra2Vid_Modes[mode->id].H;\r
 260 \r
 261                 ret = 1;\r
 262                 break;\r
 263                 }\r
 264         \r
 265         case VIDEO_IOCTL_SETCURSOR:\r
 266                 if( !Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Pos)) )\r
 267                         LEAVE_RET('i', -1);\r
 268 \r
 269                 DrvUtil_Video_RemoveCursor( &gTegra2Vid_DrvUtil_BufInfo );\r
 270                 \r
 271                 gTegra2Vid_CursorPos = *(tVideo_IOCtl_Pos*)Data;\r
 272                 if(gTegra2Vid_DrvUtil_BufInfo.BufferFormat == VIDEO_BUFFMT_TEXT)\r
 273                         DrvUtil_Video_DrawCursor(\r
 274                                 &gTegra2Vid_DrvUtil_BufInfo,\r
 275                                 gTegra2Vid_CursorPos.x*giVT_CharWidth,\r
 276                                 gTegra2Vid_CursorPos.y*giVT_CharHeight\r
 277                                 );\r
 278                 else\r
 279                         DrvUtil_Video_DrawCursor(\r
 280                                 &gTegra2Vid_DrvUtil_BufInfo,\r
 281                                 gTegra2Vid_CursorPos.x,\r
 282                                 gTegra2Vid_CursorPos.y\r
 283                                 );\r
 284                 break;\r
 285         \r
 286         default:\r
 287                 LEAVE('i', -2);\r
 288                 return -2;\r
 289         }\r
 290         \r
 291         LEAVE('i', ret);\r
 292         return ret;\r
 293 }\r
 294 \r
 295 //\r
 296 //\r
 297 //\r
 298 \r
 299 int Tegra2Vid_int_SetMode(int Mode)\r
 300 {\r
 301         const struct sTegra2_Disp_Mode  *mode = &caTegra2Vid_Modes[Mode];\r
 302          int    w = mode->W, h = mode->H;       // Horizontal/Vertical Active\r
 303         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_FRONT_PORCH_0) = (mode->VFP << 16) | mode->HFP; \r
 304         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_SYNC_WIDTH_0)  = (mode->HS << 16)  | mode->HS;\r
 305         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_BACK_PORCH_0)  = (mode->VBP << 16) | mode->HBP;\r
 306         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_DISP_ACTIVE_0) = (mode->H << 16)   | mode->W;\r
 307 \r
 308         *(Uint32*)(gpTegra2Vid_IOMem + DC_WIN_A_POSITION_0) = 0;\r
 309         *(Uint32*)(gpTegra2Vid_IOMem + DC_WIN_A_SIZE_0) = (h << 16) | w;\r
 310         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_DISP_COLOR_CONTROL_0) = 0x8;     // BASE888\r
 311         *(Uint32*)(gpTegra2Vid_IOMem + DC_WIN_A_COLOR_DEPTH_0) = 12;    // Could be 13 (BGR/RGB)\r
 312         *(Uint32*)(gpTegra2Vid_IOMem + DC_WIN_A_PRESCALED_SIZE_0) = (h << 16) | w;\r
 313 \r
 314         Log_Debug("Tegra2Vid", "Mode %i (%ix%i) selected", Mode, w, h);\r
 315 \r
 316         if( !gpTegra2Vid_Framebuffer || w*h*4 != giTegra2Vid_FramebufferSize )\r
 317         {\r
 318                 if( gpTegra2Vid_Framebuffer )\r
 319                 {\r
 320                         // TODO: Free framebuffer for reallocation\r
 321                 }\r
 322 \r
 323                 giTegra2Vid_FramebufferSize = w*h*4;            \r
 324 \r
 325                 gpTegra2Vid_Framebuffer = (void*)MM_AllocDMA(\r
 326                         (giTegra2Vid_FramebufferSize + PAGE_SIZE-1) / PAGE_SIZE,\r
 327                         32,\r
 328                         &gTegra2Vid_FramebufferPhys\r
 329                         );\r
 330                 // TODO: Catch allocation failures\r
 331                 Log_Debug("Tegra2Vid", "0x%x byte framebuffer at %p (%P phys)",\r
 332                                 giTegra2Vid_FramebufferSize,\r
 333                                 gpTegra2Vid_Framebuffer,\r
 334                                 gTegra2Vid_FramebufferPhys\r
 335                                 );\r
 336                 \r
 337                 // Tell hardware\r
 338                 *(Uint32*)(gpTegra2Vid_IOMem + DC_WINBUF_A_START_ADDR_0) = gTegra2Vid_FramebufferPhys;\r
 339                 *(Uint32*)(gpTegra2Vid_IOMem + DC_WINBUF_A_ADDR_V_OFFSET_0) = 0;        // Y offset\r
 340                 *(Uint32*)(gpTegra2Vid_IOMem + DC_WINBUF_A_ADDR_H_OFFSET_0) = 0;        // X offset\r
 341         }\r
 342 \r
 343         return 0;\r
 344 }\r