ArmPlatformPkg: implement LcdHwLib for HdLcd

Convert the HdLcd specific code of LcdGraphicsOutputDxe into a LcdHwlib
implementation that we will wire up later into LcdGraphicsOutputDxe.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Girish Pathak <girish.pathak@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

diff --git a/ArmPlatformPkg/Library/HdLcd/HdLcd.c b/ArmPlatformPkg/Library/HdLcd/HdLcd.c
new file mode 100644 (file)
index 0000000..24efb68
--- /dev/null
+++ b/ArmPlatformPkg/Library/HdLcd/HdLcd.c
@@ -0,0 +1,158 @@
+/** @file  Lcd.c\r
+\r
+  Copyright (c) 2011-2012, ARM Ltd. All rights reserved.<BR>\r
+\r
+  This program and the accompanying materials\r
+  are licensed and made available under the terms and conditions of the BSD License\r
+  which accompanies this distribution.  The full text of the license may be found at\r
+  http://opensource.org/licenses/bsd-license.php\r
+\r
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include <Library/DebugLib.h>\r
+#include <Library/IoLib.h>\r
+#include <Library/LcdHwLib.h>\r
+#include <Library/LcdPlatformLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+#include <Library/PcdLib.h>\r
+\r
+#include "HdLcd.h"\r
+\r
+/**********************************************************************\r
+ *\r
+ *  This file contains all the bits of the Lcd that are\r
+ *  platform independent.\r
+ *\r
+ **********************************************************************/\r
+\r
+STATIC\r
+UINTN\r
+GetBytesPerPixel (\r
+  IN  LCD_BPP       Bpp\r
+  )\r
+{\r
+  switch(Bpp) {\r
+  case LCD_BITS_PER_PIXEL_24:\r
+    return 4;\r
+\r
+  case LCD_BITS_PER_PIXEL_16_565:\r
+  case LCD_BITS_PER_PIXEL_16_555:\r
+  case LCD_BITS_PER_PIXEL_12_444:\r
+    return 2;\r
+\r
+  case LCD_BITS_PER_PIXEL_8:\r
+  case LCD_BITS_PER_PIXEL_4:\r
+  case LCD_BITS_PER_PIXEL_2:\r
+  case LCD_BITS_PER_PIXEL_1:\r
+    return 1;\r
+\r
+  default:\r
+    return 0;\r
+  }\r
+}\r
+\r
+EFI_STATUS\r
+LcdInitialize (\r
+  IN EFI_PHYSICAL_ADDRESS   VramBaseAddress\r
+  )\r
+{\r
+  // Disable the controller\r
+  MmioWrite32(HDLCD_REG_COMMAND, HDLCD_DISABLE);\r
+\r
+  // Disable all interrupts\r
+  MmioWrite32(HDLCD_REG_INT_MASK, 0);\r
+\r
+  // Define start of the VRAM. This never changes for any graphics mode\r
+  MmioWrite32(HDLCD_REG_FB_BASE, (UINT32) VramBaseAddress);\r
+\r
+  // Setup various registers that never change\r
+  MmioWrite32(HDLCD_REG_BUS_OPTIONS,  (4 << 8) | HDLCD_BURST_8);\r
+  MmioWrite32(HDLCD_REG_POLARITIES,   HDLCD_PXCLK_LOW | HDLCD_DATA_HIGH | HDLCD_DATEN_HIGH | HDLCD_HSYNC_LOW | HDLCD_VSYNC_HIGH);\r
+  MmioWrite32(HDLCD_REG_PIXEL_FORMAT, HDLCD_LITTLE_ENDIAN | HDLCD_4BYTES_PER_PIXEL);\r
+  MmioWrite32(HDLCD_REG_RED_SELECT,   (0 << 16 | 8 << 8 |  0));\r
+  MmioWrite32(HDLCD_REG_GREEN_SELECT, (0 << 16 | 8 << 8 |  8));\r
+  MmioWrite32(HDLCD_REG_BLUE_SELECT,  (0 << 16 | 8 << 8 | 16));\r
+\r
+  return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+LcdSetMode (\r
+  IN UINT32  ModeNumber\r
+  )\r
+{\r
+  EFI_STATUS        Status;\r
+  UINT32            HRes;\r
+  UINT32            HSync;\r
+  UINT32            HBackPorch;\r
+  UINT32            HFrontPorch;\r
+  UINT32            VRes;\r
+  UINT32            VSync;\r
+  UINT32            VBackPorch;\r
+  UINT32            VFrontPorch;\r
+  UINT32            BytesPerPixel;\r
+  LCD_BPP           LcdBpp;\r
+\r
+\r
+  // Set the video mode timings and other relevant information\r
+  Status = LcdPlatformGetTimings (ModeNumber,\r
+                                  &HRes,&HSync,&HBackPorch,&HFrontPorch,\r
+                                  &VRes,&VSync,&VBackPorch,&VFrontPorch);\r
+  ASSERT_EFI_ERROR (Status);\r
+  if (EFI_ERROR( Status )) {\r
+    return EFI_DEVICE_ERROR;\r
+  }\r
+\r
+  Status = LcdPlatformGetBpp (ModeNumber,&LcdBpp);\r
+  ASSERT_EFI_ERROR (Status);\r
+  if (EFI_ERROR( Status )) {\r
+    return EFI_DEVICE_ERROR;\r
+  }\r
+\r
+  BytesPerPixel = GetBytesPerPixel(LcdBpp);\r
+\r
+  // Disable the controller\r
+  MmioWrite32(HDLCD_REG_COMMAND, HDLCD_DISABLE);\r
+\r
+  // Update the frame buffer information with the new settings\r
+  MmioWrite32(HDLCD_REG_FB_LINE_LENGTH, HRes * BytesPerPixel);\r
+  MmioWrite32(HDLCD_REG_FB_LINE_PITCH,  HRes * BytesPerPixel);\r
+  MmioWrite32(HDLCD_REG_FB_LINE_COUNT,  VRes - 1);\r
+\r
+  // Set the vertical timing information\r
+  MmioWrite32(HDLCD_REG_V_SYNC,         VSync);\r
+  MmioWrite32(HDLCD_REG_V_BACK_PORCH,   VBackPorch);\r
+  MmioWrite32(HDLCD_REG_V_DATA,         VRes - 1);\r
+  MmioWrite32(HDLCD_REG_V_FRONT_PORCH,  VFrontPorch);\r
+\r
+  // Set the horizontal timing information\r
+  MmioWrite32(HDLCD_REG_H_SYNC,         HSync);\r
+  MmioWrite32(HDLCD_REG_H_BACK_PORCH,   HBackPorch);\r
+  MmioWrite32(HDLCD_REG_H_DATA,         HRes - 1);\r
+  MmioWrite32(HDLCD_REG_H_FRONT_PORCH,  HFrontPorch);\r
+\r
+  // Enable the controller\r
+  MmioWrite32(HDLCD_REG_COMMAND, HDLCD_ENABLE);\r
+\r
+  return EFI_SUCCESS;\r
+}\r
+\r
+VOID\r
+LcdShutdown (\r
+  VOID\r
+  )\r
+{\r
+  // Disable the controller\r
+  MmioWrite32 (HDLCD_REG_COMMAND, HDLCD_DISABLE);\r
+}\r
+\r
+EFI_STATUS\r
+LcdIdentify (\r
+  VOID\r
+  )\r
+{\r
+  return EFI_SUCCESS;\r
+}\r

diff --git a/ArmPlatformPkg/Library/HdLcd/HdLcd.h b/ArmPlatformPkg/Library/HdLcd/HdLcd.h
new file mode 100644 (file)
index 0000000..6df97a9
--- /dev/null
+++ b/ArmPlatformPkg/Library/HdLcd/HdLcd.h
@@ -0,0 +1,89 @@
+/** @file  HDLcd.h\r
+\r
+ Copyright (c) 2011-2012, ARM Ltd. All rights reserved.<BR>\r
+\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this distribution.  The full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.php\r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+ **/\r
+\r
+#ifndef _HDLCD_H_\r
+#define _HDLCD_H_\r
+\r
+//\r
+// HDLCD Controller Register Offsets\r
+//\r
+\r
+#define HDLCD_REG_VERSION                 ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x000)\r
+#define HDLCD_REG_INT_RAWSTAT             ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x010)\r
+#define HDLCD_REG_INT_CLEAR               ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x014)\r
+#define HDLCD_REG_INT_MASK                ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x018)\r
+#define HDLCD_REG_INT_STATUS              ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x01C)\r
+#define HDLCD_REG_FB_BASE                 ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x100)\r
+#define HDLCD_REG_FB_LINE_LENGTH          ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x104)\r
+#define HDLCD_REG_FB_LINE_COUNT           ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x108)\r
+#define HDLCD_REG_FB_LINE_PITCH           ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x10C)\r
+#define HDLCD_REG_BUS_OPTIONS             ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x110)\r
+#define HDLCD_REG_V_SYNC                  ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x200)\r
+#define HDLCD_REG_V_BACK_PORCH            ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x204)\r
+#define HDLCD_REG_V_DATA                  ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x208)\r
+#define HDLCD_REG_V_FRONT_PORCH           ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x20C)\r
+#define HDLCD_REG_H_SYNC                  ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x210)\r
+#define HDLCD_REG_H_BACK_PORCH            ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x214)\r
+#define HDLCD_REG_H_DATA                  ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x218)\r
+#define HDLCD_REG_H_FRONT_PORCH           ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x21C)\r
+#define HDLCD_REG_POLARITIES              ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x220)\r
+#define HDLCD_REG_COMMAND                 ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x230)\r
+#define HDLCD_REG_PIXEL_FORMAT            ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x240)\r
+#define HDLCD_REG_RED_SELECT              ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x244)\r
+#define HDLCD_REG_GREEN_SELECT            ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x248)\r
+#define HDLCD_REG_BLUE_SELECT             ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x24C)\r
+\r
+\r
+//\r
+// HDLCD Values of registers\r
+//\r
+\r
+// HDLCD Interrupt mask, clear and status register\r
+#define HDLCD_DMA_END                     BIT0    /* DMA has finished reading a frame */\r
+#define HDLCD_BUS_ERROR                   BIT1    /* DMA bus error */\r
+#define HDLCD_SYNC                        BIT2    /* Vertical sync */\r
+#define HDLCD_UNDERRUN                    BIT3    /* No Data available while DATAEN active */\r
+\r
+// CLCD_CONTROL Control register\r
+#define HDLCD_DISABLE                     0\r
+#define HDLCD_ENABLE                      BIT0\r
+\r
+// Bus Options\r
+#define HDLCD_BURST_1                     BIT0\r
+#define HDLCD_BURST_2                     BIT1\r
+#define HDLCD_BURST_4                     BIT2\r
+#define HDLCD_BURST_8                     BIT3\r
+#define HDLCD_BURST_16                    BIT4\r
+\r
+// Polarities - HIGH\r
+#define HDLCD_VSYNC_HIGH                  BIT0\r
+#define HDLCD_HSYNC_HIGH                  BIT1\r
+#define HDLCD_DATEN_HIGH                  BIT2\r
+#define HDLCD_DATA_HIGH                   BIT3\r
+#define HDLCD_PXCLK_HIGH                  BIT4\r
+// Polarities - LOW (for completion and for ease of understanding the hardware settings)\r
+#define HDLCD_VSYNC_LOW                   0\r
+#define HDLCD_HSYNC_LOW                   0\r
+#define HDLCD_DATEN_LOW                   0\r
+#define HDLCD_DATA_LOW                    0\r
+#define HDLCD_PXCLK_LOW                   0\r
+\r
+// Pixel Format\r
+#define HDLCD_LITTLE_ENDIAN              (0 << 31)\r
+#define HDLCD_BIG_ENDIAN                 (1 << 31)\r
+\r
+// Number of bytes per pixel\r
+#define HDLCD_4BYTES_PER_PIXEL           ((4 - 1) << 3)\r
+\r
+#endif /* _HDLCD_H_ */\r

diff --git a/ArmPlatformPkg/Library/HdLcd/HdLcd.inf b/ArmPlatformPkg/Library/HdLcd/HdLcd.inf
new file mode 100644 (file)
index 0000000..67aad05
--- /dev/null
+++ b/ArmPlatformPkg/Library/HdLcd/HdLcd.inf
@@ -0,0 +1,42 @@
+#/** @file\r
+#\r
+#  Component description file for HDLCD module\r
+#\r
+#  Copyright (c) 2011-2012, ARM Ltd. All rights reserved.<BR>\r
+#\r
+#  This program and the accompanying materials\r
+#  are licensed and made available under the terms and conditions of the BSD License\r
+#  which accompanies this distribution.  The full text of the license may be found at\r
+#  http://opensource.org/licenses/bsd-license.php\r
+#\r
+#  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+#  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+#\r
+#**/\r
+\r
+[Defines]\r
+  INF_VERSION                    = 0x00010005\r
+  BASE_NAME                      = HdLcd\r
+  FILE_GUID                      = ce660500-824d-11e0-ac72-0002a5d5c51b\r
+  MODULE_TYPE                    = BASE\r
+  VERSION_STRING                 = 1.0\r
+  LIBRARY_CLASS                  = LcdHwLib\r
+\r
+[Sources.common]\r
+  HdLcd.c\r
+\r
+[Packages]\r
+  ArmPlatformPkg/ArmPlatformPkg.dec\r
+  ArmPkg/ArmPkg.dec\r
+  MdeModulePkg/MdeModulePkg.dec\r
+  MdePkg/MdePkg.dec\r
+\r
+[LibraryClasses]\r
+  ArmLib\r
+  UefiLib\r
+  BaseLib\r
+  DebugLib\r
+  IoLib\r
+\r
+[FixedPcd]\r
+  gArmPlatformTokenSpaceGuid.PcdArmHdLcdBase\r