--- /dev/null
+/**\r
+ * Acess2 ARM PrimeCell Colour LCD Controller (PL110) Driver\r
+ * - By John Hodge (thePowersGang)\r
+ *\r
+ * main.c\r
+ * - Driver core\r
+ *\r
+ *\r
+ * NOTE: The PL110 is set to 24bpp, but these are stored as 32-bit words.\r
+ * This corresponds to the Acess 32bpp mode, as the Acess 24bpp is packed\r
+ */\r
+#define DEBUG 0\r
+#define VERSION ((0<<8)|10)\r
+#include <acess.h>\r
+#include <errno.h>\r
+#include <modules.h>\r
+#include <vfs.h>\r
+#include <fs_devfs.h>\r
+#include <drv_pci.h>\r
+#include <api_drv_video.h>\r
+#include <lib/keyvalue.h>\r
+#include <options.h> // ARM Arch\r
+\r
+#define ABS(a) ((a)>0?(a):-(a))\r
+\r
+// === TYPEDEFS ===\r
+typedef struct sPL110 tPL110;\r
+\r
+struct sPL110\r
+{\r
+ Uint32 LCDTiming0;\r
+ Uint32 LCDTiming1;\r
+ Uint32 LCDTiming2;\r
+ Uint32 LCDTiming3;\r
+ \r
+ Uint32 LCDUPBase;\r
+ Uint32 LCDLPBase;\r
+ Uint32 LCDIMSC;\r
+ Uint32 LCDControl;\r
+ Uint32 LCDRIS;\r
+ Uint32 LCDMIS;\r
+ Uint32 LCDICR;\r
+ Uint32 LCDUPCurr;\r
+ Uint32 LCDLPCurr;\r
+};\r
+\r
+#ifndef PL110_BASE\r
+#define PL110_BASE 0x10020000 // Integrator\r
+#endif\r
+\r
+// === CONSTANTS ===\r
+const struct {\r
+ short W, H;\r
+} caPL110_Modes[] = {\r
+ {640,480},\r
+ {800,600},\r
+ {1024,768} // MAX\r
+};\r
+const int ciPL110_ModeCount = sizeof(caPL110_Modes)/sizeof(caPL110_Modes[0]);\r
+\r
+// === PROTOTYPES ===\r
+// Driver\r
+ int PL110_Install(char **Arguments);\r
+void PL110_Uninstall();\r
+// Internal\r
+// Filesystem\r
+Uint64 PL110_Read(tVFS_Node *node, Uint64 off, Uint64 len, void *buffer);\r
+Uint64 PL110_Write(tVFS_Node *node, Uint64 off, Uint64 len, const void *buffer);\r
+ int PL110_IOCtl(tVFS_Node *node, int id, void *data);\r
+// -- Internals\r
+ int PL110_int_SetResolution(int W, int H);\r
+\r
+// === GLOBALS ===\r
+MODULE_DEFINE(0, VERSION, PL110, PL110_Install, NULL, NULL);\r
+tVFS_NodeType gPL110_DevNodeType = {\r
+ .Read = PL110_Read,\r
+ .Write = PL110_Write,\r
+ .IOCtl = PL110_IOCtl\r
+ };\r
+tDevFS_Driver gPL110_DriverStruct = {\r
+ NULL, "PL110",\r
+ {.Type = &gPL110_DevNodeType}\r
+};\r
+// -- Options\r
+tPAddr gPL110_PhysBase = PL110_BASE;\r
+ int gbPL110_IsVersatile = 1;\r
+// -- KeyVal parse rules\r
+const tKeyVal_ParseRules gPL110_KeyValueParser = {\r
+ NULL,\r
+ {\r
+ {"Base", "P", &gPL110_PhysBase},\r
+ {"IsVersatile", "i", &gbPL110_IsVersatile},\r
+ {NULL, NULL, NULL}\r
+ }\r
+};\r
+// -- Driver state\r
+ int giPL110_CurrentMode = 0;\r
+ int giPL110_BufferMode;\r
+ int giPL110_Width = 640;\r
+ int giPL110_Height = 480;\r
+size_t giPL110_FramebufferSize;\r
+tPL110 *gpPL110_IOMem;\r
+tPAddr gPL110_FramebufferPhys;\r
+void *gpPL110_Framebuffer;\r
+// -- Misc\r
+tDrvUtil_Video_BufInfo gPL110_DrvUtil_BufInfo;\r
+tVideo_IOCtl_Pos gPL110_CursorPos;\r
+\r
+// === CODE ===\r
+/**\r
+ */\r
+int PL110_Install(char **Arguments)\r
+{\r
+// KeyVal_Parse(&gPL110_KeyValueParser, Arguments);\r
+ \r
+ gpPL110_IOMem = (void*)MM_MapHWPages(gPL110_PhysBase, 1);\r
+\r
+ PL110_int_SetResolution(caPL110_Modes[0].W, caPL110_Modes[0].H);\r
+\r
+ DevFS_AddDevice( &gPL110_DriverStruct );\r
+\r
+ return 0;\r
+}\r
+\r
+/**\r
+ * \brief Clean up resources for driver unloading\r
+ */\r
+void PL110_Uninstall()\r
+{\r
+}\r
+\r
+/**\r
+ * \brief Read from the framebuffer\r
+ */\r
+Uint64 PL110_Read(tVFS_Node *node, Uint64 off, Uint64 len, void *buffer)\r
+{\r
+ return 0;\r
+}\r
+\r
+/**\r
+ * \brief Write to the framebuffer\r
+ */\r
+Uint64 PL110_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, const void *Buffer)\r
+{\r
+ gPL110_DrvUtil_BufInfo.BufferFormat = giPL110_BufferMode;\r
+ return DrvUtil_Video_WriteLFB(&gPL110_DrvUtil_BufInfo, Offset, Length, Buffer);\r
+}\r
+\r
+const char *csaPL110_IOCtls[] = {DRV_IOCTLNAMES, DRV_VIDEO_IOCTLNAMES, NULL};\r
+\r
+/**\r
+ * \brief Handle messages to the device\r
+ */\r
+int PL110_IOCtl(tVFS_Node *Node, int ID, void *Data)\r
+{\r
+ int ret = -2;\r
+ ENTER("pNode iID pData", Node, ID, Data);\r
+ \r
+ switch(ID)\r
+ {\r
+ BASE_IOCTLS(DRV_TYPE_VIDEO, "PL110", VERSION, csaPL110_IOCtls);\r
+\r
+ case VIDEO_IOCTL_SETBUFFORMAT:\r
+ DrvUtil_Video_RemoveCursor( &gPL110_DrvUtil_BufInfo );\r
+ ret = giPL110_BufferMode;\r
+ if(Data) giPL110_BufferMode = *(int*)Data;\r
+ if(gPL110_DrvUtil_BufInfo.BufferFormat == VIDEO_BUFFMT_TEXT)\r
+ DrvUtil_Video_SetCursor( &gPL110_DrvUtil_BufInfo, &gDrvUtil_TextModeCursor );\r
+ break;\r
+ \r
+ case VIDEO_IOCTL_GETSETMODE:\r
+ if(Data)\r
+ {\r
+ int newMode;\r
+ \r
+ if( !CheckMem(Data, sizeof(int)) )\r
+ LEAVE_RET('i', -1);\r
+ \r
+ newMode = *(int*)Data;\r
+ \r
+ if(newMode < 0 || newMode >= ciPL110_ModeCount)\r
+ LEAVE_RET('i', -1);\r
+\r
+ if(newMode != giPL110_CurrentMode)\r
+ {\r
+ giPL110_CurrentMode = newMode;\r
+ PL110_int_SetResolution( caPL110_Modes[newMode].W, caPL110_Modes[newMode].H );\r
+ }\r
+ }\r
+ ret = giPL110_CurrentMode;\r
+ break;\r
+ \r
+ case VIDEO_IOCTL_FINDMODE:\r
+ {\r
+ tVideo_IOCtl_Mode *mode = Data;\r
+ int closest, closestArea, reqArea = 0;\r
+ if(!Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Mode)))\r
+ LEAVE_RET('i', -1);\r
+ if( mode->bpp != 32 )\r
+ LEAVE_RET('i', 0);\r
+ if( mode->flags != 0 )\r
+ LEAVE_RET('i', 0);\r
+\r
+ ret = 0;\r
+\r
+ for( int i = 0; i < ciPL110_ModeCount; i ++ )\r
+ {\r
+ int area;\r
+ if(mode->width == caPL110_Modes[i].W && mode->height == caPL110_Modes[i].H) {\r
+ mode->id = i;\r
+ ret = 1;\r
+ break;\r
+ }\r
+ \r
+ area = caPL110_Modes[i].W * caPL110_Modes[i].H;\r
+ if(!reqArea) {\r
+ reqArea = mode->width * mode->height;\r
+ closest = i;\r
+ closestArea = area;\r
+ }\r
+ else if( ABS(area - reqArea) < ABS(closestArea - reqArea) ) {\r
+ closest = i;\r
+ closestArea = area;\r
+ }\r
+ }\r
+ \r
+ if( ret == 0 )\r
+ {\r
+ mode->id = closest;\r
+ ret = 1;\r
+ }\r
+ mode->width = caPL110_Modes[mode->id].W;\r
+ mode->height = caPL110_Modes[mode->id].H;\r
+ break;\r
+ }\r
+ \r
+ case VIDEO_IOCTL_MODEINFO:\r
+ {\r
+ tVideo_IOCtl_Mode *mode = Data;\r
+ if(!Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Mode)))\r
+ LEAVE_RET('i', -1);\r
+ if(mode->id < 0 || mode->id >= ciPL110_ModeCount)\r
+ LEAVE_RET('i', 0);\r
+ \r
+\r
+ mode->bpp = 32;\r
+ mode->flags = 0;\r
+ mode->width = caPL110_Modes[mode->id].W;\r
+ mode->height = caPL110_Modes[mode->id].H;\r
+\r
+ ret = 1;\r
+ break;\r
+ }\r
+ \r
+ case VIDEO_IOCTL_SETCURSOR:\r
+ if( !Data || !CheckMem(Data, sizeof(tVideo_IOCtl_Pos)) )\r
+ LEAVE_RET('i', -1);\r
+\r
+ DrvUtil_Video_RemoveCursor( &gPL110_DrvUtil_BufInfo );\r
+ \r
+ gPL110_CursorPos = *(tVideo_IOCtl_Pos*)Data;\r
+ if(gPL110_DrvUtil_BufInfo.BufferFormat == VIDEO_BUFFMT_TEXT)\r
+ DrvUtil_Video_DrawCursor(\r
+ &gPL110_DrvUtil_BufInfo,\r
+ gPL110_CursorPos.x*giVT_CharWidth,\r
+ gPL110_CursorPos.y*giVT_CharHeight\r
+ );\r
+ else\r
+ DrvUtil_Video_DrawCursor(\r
+ &gPL110_DrvUtil_BufInfo,\r
+ gPL110_CursorPos.x,\r
+ gPL110_CursorPos.y\r
+ );\r
+ break;\r
+ \r
+ default:\r
+ LEAVE('i', -2);\r
+ return -2;\r
+ }\r
+ \r
+ LEAVE('i', ret);\r
+ return ret;\r
+}\r
+\r
+//\r
+//\r
+//\r
+\r
+/**\r
+ * \brief Set the LCD controller resolution\r
+ * \param W Width (aligned to 16 pixels, cipped to 1024)\r
+ * \param H Height (clipped to 768)\r
+ * \return Boolean failure\r
+ */\r
+int PL110_int_SetResolution(int W, int H)\r
+{\r
+ W = (W + 15) & ~0xF;\r
+ if(W <= 0 || H <= 0) {\r
+ Log_Warning("PL110", "Attempted to set invalid resolution (%ix%i)", W, H);\r
+ return 1;\r
+ }\r
+ if(W > 1024) W = 1024;\r
+ if(H > 768) H = 768;\r
+\r
+ gpPL110_IOMem->LCDTiming0 = ((W/16)-1) << 2;\r
+ gpPL110_IOMem->LCDTiming1 = H-1;\r
+ gpPL110_IOMem->LCDTiming2 = (14 << 27);\r
+ gpPL110_IOMem->LCDTiming3 = 0;\r
+\r
+ if( gpPL110_Framebuffer ) {\r
+ MM_UnmapHWPages((tVAddr)gpPL110_Framebuffer, (giPL110_FramebufferSize+0xFFF)>>12);\r
+ }\r
+ giPL110_FramebufferSize = W*H*4;\r
+\r
+ gpPL110_Framebuffer = (void*)MM_AllocDMA( (giPL110_FramebufferSize+0xFFF)>>12, 32, &gPL110_FramebufferPhys );\r
+ gpPL110_IOMem->LCDUPBase = gPL110_FramebufferPhys;\r
+ gpPL110_IOMem->LCDLPBase = 0;\r
+\r
+ // Power on, BGR mode, ???, ???, enabled\r
+ Uint32 controlWord = (1 << 11)|(1 << 8)|(1 << 5)|(5 << 1)|1;\r
+ // According to qemu, the Versatile version has these two the wrong\r
+ // way around\r
+ if( gbPL110_IsVersatile )\r
+ {\r
+ gpPL110_IOMem->LCDIMSC = controlWord; // Actually LCDControl\r
+ gpPL110_IOMem->LCDControl = 0; // Actually LCDIMSC\r
+ }\r
+ else\r
+ {\r
+ gpPL110_IOMem->LCDIMSC = 0;\r
+ gpPL110_IOMem->LCDControl = controlWord;\r
+ }\r
+\r
+ giPL110_Width = W;\r
+ giPL110_Height = H;\r
+\r
+ // Update the DrvUtil buffer info\r
+ gPL110_DrvUtil_BufInfo.Framebuffer = gpPL110_Framebuffer;\r
+ gPL110_DrvUtil_BufInfo.Pitch = W * 4;\r
+ gPL110_DrvUtil_BufInfo.Width = W;\r
+ gPL110_DrvUtil_BufInfo.Height = H;\r
+ gPL110_DrvUtil_BufInfo.Depth = 32;\r
+ \r
+ return 0;\r
+}\r
git.ucc.asn.au / tpg / acess2.git / blobdiff
UCC git Repository :: git.ucc.asn.au