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 //      KeyVal_Parse(&gTegra2Vid_KeyValueParser, Arguments);\r
  70 \r
  71         gpTegra2Vid_IOMem = (void*)MM_MapHWPages(gTegra2Vid_PhysBase, 256/4);\r
  72         {\r
  73                 Log_Debug("Tegra2Vid", "Display CMD Registers");\r
  74                 for( int i = 0x000; i <= 0x01A; i ++ )\r
  75                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  76                 for( int i = 0x028; i <= 0x043; i ++ )\r
  77                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  78                 Log_Debug("Tegra2Vid", "Display COM Registers");\r
  79                 for( int i = 0x300; i <= 0x329; i ++ )\r
  80                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  81                 Log_Debug("Tegra2Vid", "Display DISP Registers");\r
  82                 for( int i = 0x400; i <= 0x446; i ++ )\r
  83                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  84                 for( int i = 0x480; i <= 0x484; i ++ )\r
  85                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  86                 for( int i = 0x4C0; i <= 0x4C1; i ++ )\r
  87                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  88 \r
  89                 Log_Debug("Tegra2Vid", "WINC_A Registers");\r
  90                 for( int i = 0x700; i <= 0x714; i ++ )\r
  91                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  92                 Log_Debug("Tegra2Vid", "WINBUF_A");\r
  93                 for( int i = 0x800; i <= 0x80A; i ++ )\r
  94                         Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);\r
  95         }\r
  96 //      return 1;\r
  97         \r
  98         giTegra2Vid_FramebufferSize =\r
  99                 (gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0]&0xFFFF)\r
 100                 *(gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0]>>16)*4;\r
 101 \r
 102         Log_Debug("Tegra2Vid", "giTegra2Vid_FramebufferSize = 0x%x", giTegra2Vid_FramebufferSize);\r
 103         gpTegra2Vid_Framebuffer = MM_MapHWPages(\r
 104                 gpTegra2Vid_IOMem[DC_WINBUF_A_START_ADDR_0],\r
 105                 (giTegra2Vid_FramebufferSize+PAGE_SIZE-1)/PAGE_SIZE\r
 106                 );\r
 107         memset(gpTegra2Vid_Framebuffer, 0x1F, 0x1000);\r
 108 \r
 109 \r
 110 //      Tegra2Vid_int_SetMode(4);\r
 111 \r
 112         DevFS_AddDevice( &gTegra2Vid_DriverStruct );\r
 113 \r
 114         return 0;\r
 115 }\r
 116 \r
 117 /**\r
 118  * \brief Clean up resources for driver unloading\r
 119  */\r
 120 void Tegra2Vid_Uninstall()\r
 121 {\r
 122 }\r
 123 \r
 124 /**\r
 125  * \brief Read from the framebuffer\r
 126  */\r
 127 Uint64 Tegra2Vid_Read(tVFS_Node *node, Uint64 off, Uint64 len, void *buffer)\r
 128 {\r
 129         return 0;\r
 130 }\r
 131 \r
 132 /**\r
 133  * \brief Write to the framebuffer\r
 134  */\r
 135 Uint64 Tegra2Vid_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)\r
 136 {\r
 137         gTegra2Vid_DrvUtil_BufInfo.BufferFormat = giTegra2Vid_BufferMode;\r
 138         return DrvUtil_Video_WriteLFB(&gTegra2Vid_DrvUtil_BufInfo, Offset, Length, Buffer);\r
 139 }\r
 140 \r
 141 const char *csaTegra2Vid_IOCtls[] = {DRV_IOCTLNAMES, DRV_VIDEO_IOCTLNAMES, NULL};\r
 142 \r
 143 /**\r
 144  * \brief Handle messages to the device\r
 145  */\r
 146 int Tegra2Vid_IOCtl(tVFS_Node *Node, int ID, void *Data)\r
 147 {\r
 148          int    ret = -2;\r
 149         ENTER("pNode iID pData", Node, ID, Data);\r
 150         \r
 151         switch(ID)\r
 152         {\r
 153         BASE_IOCTLS(DRV_TYPE_VIDEO, "PL110", VERSION, csaTegra2Vid_IOCtls);\r
 154 \r
 155         case VIDEO_IOCTL_SETBUFFORMAT:\r
 156                 DrvUtil_Video_RemoveCursor( &gTegra2Vid_DrvUtil_BufInfo );\r
 157                 ret = giTegra2Vid_BufferMode;\r
 158                 if(Data)        giTegra2Vid_BufferMode = *(int*)Data;\r
 159                 if(gTegra2Vid_DrvUtil_BufInfo.BufferFormat == VIDEO_BUFFMT_TEXT)\r
 160                         DrvUtil_Video_SetCursor( &gTegra2Vid_DrvUtil_BufInfo, &gDrvUtil_TextModeCursor );\r
 161                 break;\r
 162         \r
 163         case VIDEO_IOCTL_GETSETMODE:\r
 164                 if(Data)\r
 165                 {\r
 166                          int    newMode;\r
 167                         \r
 168                         if( !CheckMem(Data, sizeof(int)) )\r
 169                                 LEAVE_RET('i', -1);\r
 170                         \r
 171                         newMode = *(int*)Data;\r
 172                         \r
 173                         if(newMode < 0 || newMode >= ciTegra2Vid_ModeCount)\r
 174                                 LEAVE_RET('i', -1);\r
 175 \r
 176                         if(newMode != giTegra2Vid_CurrentMode)\r
 177                         {\r
 178                                 giTegra2Vid_CurrentMode = newMode;\r
 179                                 Tegra2Vid_int_SetMode( newMode );\r
 180                         }\r
 181                 }\r
 182                 ret = giTegra2Vid_CurrentMode;\r
 183                 break;\r
 184         \r
 185         case VIDEO_IOCTL_FINDMODE:\r
 186                 {\r
 187                 tVideo_IOCtl_Mode *mode = Data;\r
 188                  int    closest, closestArea, reqArea = 0;\r
 189                 if(!Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Mode)))\r
 190                         LEAVE_RET('i', -1);\r
 191                 if( mode->bpp != 32 )\r
 192                         LEAVE_RET('i', 0);\r
 193                 if( mode->flags != 0 )\r
 194                         LEAVE_RET('i', 0);\r
 195 \r
 196                 ret = 0;\r
 197 \r
 198                 for( int i = 0; i < ciTegra2Vid_ModeCount; i ++ )\r
 199                 {\r
 200                          int    area;\r
 201                         if(mode->width == caTegra2Vid_Modes[i].W && mode->height == caTegra2Vid_Modes[i].H) {\r
 202                                 mode->id = i;\r
 203                                 ret = 1;\r
 204                                 break;\r
 205                         }\r
 206                         \r
 207                         area = caTegra2Vid_Modes[i].W * caTegra2Vid_Modes[i].H;\r
 208                         if(!reqArea) {\r
 209                                 reqArea = mode->width * mode->height;\r
 210                                 closest = i;\r
 211                                 closestArea = area;\r
 212                         }\r
 213                         else if( ABS(area - reqArea) < ABS(closestArea - reqArea) ) {\r
 214                                 closest = i;\r
 215                                 closestArea = area;\r
 216                         }\r
 217                 }\r
 218                 \r
 219                 if( ret == 0 )\r
 220                 {\r
 221                         mode->id = closest;\r
 222                         ret = 1;\r
 223                 }\r
 224                 mode->width = caTegra2Vid_Modes[mode->id].W;\r
 225                 mode->height = caTegra2Vid_Modes[mode->id].H;\r
 226                 break;\r
 227                 }\r
 228         \r
 229         case VIDEO_IOCTL_MODEINFO:\r
 230                 {\r
 231                 tVideo_IOCtl_Mode *mode = Data;\r
 232                 if(!Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Mode)))\r
 233                         LEAVE_RET('i', -1);\r
 234                 if(mode->id < 0 || mode->id >= ciTegra2Vid_ModeCount)\r
 235                         LEAVE_RET('i', 0);\r
 236                 \r
 237 \r
 238                 mode->bpp = 32;\r
 239                 mode->flags = 0;\r
 240                 mode->width = caTegra2Vid_Modes[mode->id].W;\r
 241                 mode->height = caTegra2Vid_Modes[mode->id].H;\r
 242 \r
 243                 ret = 1;\r
 244                 break;\r
 245                 }\r
 246         \r
 247         case VIDEO_IOCTL_SETCURSOR:\r
 248                 if( !Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Pos)) )\r
 249                         LEAVE_RET('i', -1);\r
 250 \r
 251                 DrvUtil_Video_RemoveCursor( &gTegra2Vid_DrvUtil_BufInfo );\r
 252                 \r
 253                 gTegra2Vid_CursorPos = *(tVideo_IOCtl_Pos*)Data;\r
 254                 if(gTegra2Vid_DrvUtil_BufInfo.BufferFormat == VIDEO_BUFFMT_TEXT)\r
 255                         DrvUtil_Video_DrawCursor(\r
 256                                 &gTegra2Vid_DrvUtil_BufInfo,\r
 257                                 gTegra2Vid_CursorPos.x*giVT_CharWidth,\r
 258                                 gTegra2Vid_CursorPos.y*giVT_CharHeight\r
 259                                 );\r
 260                 else\r
 261                         DrvUtil_Video_DrawCursor(\r
 262                                 &gTegra2Vid_DrvUtil_BufInfo,\r
 263                                 gTegra2Vid_CursorPos.x,\r
 264                                 gTegra2Vid_CursorPos.y\r
 265                                 );\r
 266                 break;\r
 267         \r
 268         default:\r
 269                 LEAVE('i', -2);\r
 270                 return -2;\r
 271         }\r
 272         \r
 273         LEAVE('i', ret);\r
 274         return ret;\r
 275 }\r
 276 \r
 277 //\r
 278 //\r
 279 //\r
 280 \r
 281 int Tegra2Vid_int_SetMode(int Mode)\r
 282 {\r
 283         const struct sTegra2_Disp_Mode  *mode = &caTegra2Vid_Modes[Mode];\r
 284          int    w = mode->W, h = mode->H;       // Horizontal/Vertical Active\r
 285         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_FRONT_PORCH_0) = (mode->VFP << 16) | mode->HFP; \r
 286         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_SYNC_WIDTH_0)  = (mode->HS << 16)  | mode->HS;\r
 287         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_BACK_PORCH_0)  = (mode->VBP << 16) | mode->HBP;\r
 288         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_DISP_ACTIVE_0) = (mode->H << 16)   | mode->W;\r
 289 \r
 290         *(Uint32*)(gpTegra2Vid_IOMem + DC_WIN_A_POSITION_0) = 0;\r
 291         *(Uint32*)(gpTegra2Vid_IOMem + DC_WIN_A_SIZE_0) = (mode->H << 16) | mode->W;\r
 292         *(Uint32*)(gpTegra2Vid_IOMem + DC_DISP_DISP_COLOR_CONTROL_0) = 0x8;     // BASE888\r
 293         *(Uint32*)(gpTegra2Vid_IOMem + DC_WIN_A_COLOR_DEPTH_0) = 12;    // Could be 13 (BGR/RGB)\r
 294         *(Uint32*)(gpTegra2Vid_IOMem + DC_WIN_A_PRESCALED_SIZE_0) = (mode->H << 16) | mode->W;\r
 295 \r
 296         Log_Debug("Tegra2Vid", "Mode %i (%ix%i) selected", Mode, w, h);\r
 297 \r
 298         if( !gpTegra2Vid_Framebuffer || w*h*4 != giTegra2Vid_FramebufferSize )\r
 299         {\r
 300                 if( gpTegra2Vid_Framebuffer )\r
 301                 {\r
 302                         // TODO: Free framebuffer for reallocation\r
 303                 }\r
 304 \r
 305                 giTegra2Vid_FramebufferSize = w*h*4;            \r
 306 \r
 307                 gpTegra2Vid_Framebuffer = (void*)MM_AllocDMA(\r
 308                         (giTegra2Vid_FramebufferSize + PAGE_SIZE-1) / PAGE_SIZE,\r
 309                         32,\r
 310                         &gTegra2Vid_FramebufferPhys\r
 311                         );\r
 312                 // TODO: Catch allocation failures\r
 313                 Log_Debug("Tegra2Vid", "0x%x byte framebuffer at %p (%P phys)",\r
 314                                 giTegra2Vid_FramebufferSize,\r
 315                                 gpTegra2Vid_Framebuffer,\r
 316                                 gTegra2Vid_FramebufferPhys\r
 317                                 );\r
 318                 \r
 319                 // Tell hardware\r
 320                 *(Uint32*)(gpTegra2Vid_IOMem + DC_WINBUF_A_START_ADDR_0) = gTegra2Vid_FramebufferPhys;\r
 321                 *(Uint32*)(gpTegra2Vid_IOMem + DC_WINBUF_A_ADDR_V_OFFSET_0) = 0;        // Y offset\r
 322                 *(Uint32*)(gpTegra2Vid_IOMem + DC_WINBUF_A_ADDR_H_OFFSET_0) = 0;        // X offset\r
 323         }\r
 324 \r
 325         return 0;\r
 326 }\r