[edk2,platform,4/4] Platform/Hisilicon/HiKey: enable virtual keyboard

diff --git a/Platform/Hisilicon/HiKey/HiKey.dsc b/Platform/Hisilicon/HiKey/HiKey.dsc
index 2dfdced..37ad6da 100644
--- a/Platform/Hisilicon/HiKey/HiKey.dsc
+++ b/Platform/Hisilicon/HiKey/HiKey.dsc
@@ -192,9 +192,17 @@ 
   #
   # GPIO
   #
+  Platform/Hisilicon/HiKey/HiKeyGpioDxe/HiKeyGpioDxe.inf
   ArmPlatformPkg/Drivers/PL061GpioDxe/PL061GpioDxe.inf
 
   #
+  # Virtual Keyboard
+  #
+  EmbeddedPkg/Drivers/VirtualKeyboardDxe/VirtualKeyboardDxe.inf
+
+  Platform/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.inf
+
+  #
   # MMC/SD
   #
   EmbeddedPkg/Universal/MmcDxe/MmcDxe.inf
diff --git a/Platform/Hisilicon/HiKey/HiKey.fdf b/Platform/Hisilicon/HiKey/HiKey.fdf
index 80b272c..e7cea73 100644
--- a/Platform/Hisilicon/HiKey/HiKey.fdf
+++ b/Platform/Hisilicon/HiKey/HiKey.fdf
@@ -355,9 +355,17 @@  READ_LOCK_STATUS   = TRUE
   #
   # GPIO
   #
+  INF Platform/Hisilicon/HiKey/HiKeyGpioDxe/HiKeyGpioDxe.inf
   INF ArmPlatformPkg/Drivers/PL061GpioDxe/PL061GpioDxe.inf
 
   #
+  # Virtual Keyboard
+  #
+  INF EmbeddedPkg/Drivers/VirtualKeyboardDxe/VirtualKeyboardDxe.inf
+
+  INF Platform/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.inf
+
+  #
   # Multimedia Card Interface
   #
   INF EmbeddedPkg/Universal/MmcDxe/MmcDxe.inf
diff --git a/Platform/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.c b/Platform/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.c
new file mode 100644
index 0000000..65e8001
--- /dev/null
+++ b/Platform/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.c
@@ -0,0 +1,229 @@ 
+/** @file
+*
+*  Copyright (c) 2018, Linaro Ltd. All rights reserved.
+*
+*  This program and the accompanying materials
+*  are licensed and made available under the terms and conditions of the BSD License
+*  which accompanies this distribution.  The full text of the license may be found at
+*  http://opensource.org/licenses/bsd-license.php
+*
+*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#include <Library/BaseMemoryLib.h>
+#include <Library/CacheMaintenanceLib.h>
+#include <Library/DebugLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/IoLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PrintLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+
+#include <Protocol/EmbeddedGpio.h>
+#include <Protocol/PlatformVirtualKeyboard.h>
+
+#include <Hi6220.h>
+#include <Hi6220RegsPeri.h>
+#include <libfdt.h>
+
+#define SERIAL_NUMBER_SIZE               17
+#define SERIAL_NUMBER_BLOCK_SIZE         EFI_PAGE_SIZE
+#define SERIAL_NUMBER_LBA                1024
+#define RANDOM_MAX                       0x7FFFFFFFFFFFFFFF
+#define RANDOM_MAGIC                     0x9A4DBEAF
+
+#define DETECT_J15_FASTBOOT              24   // GPIO3_0
+
+#define ADB_REBOOT_ADDRESS               0x05F01000
+#define ADB_REBOOT_BOOTLOADER            0x77665500
+#define ADB_REBOOT_NONE                  0x77665501
+
+
+typedef struct {
+  UINT64        Magic;
+  UINT64        Data;
+  CHAR16        UnicodeSN[SERIAL_NUMBER_SIZE];
+} RANDOM_SERIAL_NUMBER;
+
+STATIC EMBEDDED_GPIO        *mGpio;
+
+STATIC
+VOID
+UartInit (
+  IN VOID
+  )
+{
+  UINT32     Val;
+
+  /* make UART1 out of reset */
+  MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_RSTDIS3, PERIPH_RST3_UART1);
+  MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_CLKEN3, PERIPH_RST3_UART1);
+  /* make UART2 out of reset */
+  MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_RSTDIS3, PERIPH_RST3_UART2);
+  MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_CLKEN3, PERIPH_RST3_UART2);
+  /* make UART3 out of reset */
+  MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_RSTDIS3, PERIPH_RST3_UART3);
+  MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_CLKEN3, PERIPH_RST3_UART3);
+  /* make UART4 out of reset */
+  MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_RSTDIS3, PERIPH_RST3_UART4);
+  MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_CLKEN3, PERIPH_RST3_UART4);
+
+  /* make DW_MMC2 out of reset */
+  MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_RSTDIS0, PERIPH_RST0_MMC2);
+
+  /* enable clock for BT/WIFI */
+  Val = MmioRead32 (PMUSSI_REG(0x1c)) | 0x40;
+  MmioWrite32 (PMUSSI_REG(0x1c), Val);
+}
+
+STATIC
+VOID
+MtcmosInit (
+  IN VOID
+  )
+{
+  UINT32     Data;
+
+  /* enable MTCMOS for GPU */
+  MmioWrite32 (AO_CTRL_BASE + SC_PW_MTCMOS_EN0, PW_EN0_G3D);
+  do {
+    Data = MmioRead32 (AO_CTRL_BASE + SC_PW_MTCMOS_ACK_STAT0);
+  } while ((Data & PW_EN0_G3D) == 0);
+}
+
+EFI_STATUS
+HiKeyInitPeripherals (
+  IN VOID
+  )
+{
+  UINT32     Data, Bits;
+
+  /* make I2C0/I2C1/I2C2/SPI0 out of reset */
+  Bits = PERIPH_RST3_I2C0 | PERIPH_RST3_I2C1 | PERIPH_RST3_I2C2 | \
+         PERIPH_RST3_SSP;
+  MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_RSTDIS3, Bits);
+
+  do {
+    Data = MmioRead32 (PERI_CTRL_BASE + SC_PERIPH_RSTSTAT3);
+  } while (Data & Bits);
+
+  UartInit ();
+  MtcmosInit ();
+
+  /* Set DETECT_J15_FASTBOOT (GPIO24) pin as GPIO function */
+  MmioWrite32 (0xf7010950, 0);        /* configure GPIO24 as nopull */
+  MmioWrite32 (0xf7010140, 0);        /* configure GPIO24 as GPIO */
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+VirtualKeyboardRegister (
+  IN VOID
+  )
+{
+  EFI_STATUS           Status;
+
+  Status = gBS->LocateProtocol (
+                  &gEmbeddedGpioProtocolGuid,
+                  NULL,
+                  (VOID **) &mGpio
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+VirtualKeyboardReset (
+  IN VOID
+  )
+{
+  EFI_STATUS           Status;
+
+  if (mGpio == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+  Status = mGpio->Set (mGpio, DETECT_J15_FASTBOOT, GPIO_MODE_INPUT);
+  return Status;
+}
+
+BOOLEAN
+EFIAPI
+VirtualKeyboardQuery (
+  IN VIRTUAL_KBD_KEY             *VirtualKey
+  )
+{
+  EFI_STATUS           Status;
+  UINTN                Value = 0;
+
+  if ((VirtualKey == NULL) || (mGpio == NULL)) {
+    return FALSE;
+  }
+  if (MmioRead32 (ADB_REBOOT_ADDRESS) == ADB_REBOOT_BOOTLOADER) {
+    goto Done;
+  } else {
+    Status = mGpio->Get (mGpio, DETECT_J15_FASTBOOT, &Value);
+    if (EFI_ERROR (Status) || (Value != 0)) {
+      return FALSE;
+    }
+  }
+Done:
+  VirtualKey->Signature = VIRTUAL_KEYBOARD_KEY_SIGNATURE;
+  VirtualKey->Key.ScanCode = SCAN_NULL;
+  VirtualKey->Key.UnicodeChar = L'f';
+  return TRUE;
+}
+
+EFI_STATUS
+EFIAPI
+VirtualKeyboardClear (
+  IN VIRTUAL_KBD_KEY            *VirtualKey
+  )
+{
+  if (VirtualKey == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+  if (MmioRead32 (ADB_REBOOT_ADDRESS) == ADB_REBOOT_BOOTLOADER) {
+    MmioWrite32 (ADB_REBOOT_ADDRESS, ADB_REBOOT_NONE);
+    WriteBackInvalidateDataCacheRange ((VOID *)ADB_REBOOT_ADDRESS, 4);
+  }
+  return EFI_SUCCESS;
+}
+
+PLATFORM_VIRTUAL_KBD_PROTOCOL mVirtualKeyboard = {
+  VirtualKeyboardRegister,
+  VirtualKeyboardReset,
+  VirtualKeyboardQuery,
+  VirtualKeyboardClear
+};
+
+EFI_STATUS
+EFIAPI
+HiKeyEntryPoint (
+  IN EFI_HANDLE         ImageHandle,
+  IN EFI_SYSTEM_TABLE   *SystemTable
+  )
+{
+  EFI_STATUS            Status;
+
+  Status = HiKeyInitPeripherals ();
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  Status = gBS->InstallProtocolInterface (
+                  &ImageHandle,
+                  &gPlatformVirtualKeyboardProtocolGuid,
+                  EFI_NATIVE_INTERFACE,
+                  &mVirtualKeyboard
+                  );
+  return Status;
+}
diff --git a/Platform/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.inf b/Platform/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.inf
new file mode 100644
index 0000000..814b5da
--- /dev/null
+++ b/Platform/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.inf
@@ -0,0 +1,58 @@ 
+#
+#  Copyright (c) 2013 - 2014, ARM Ltd. All rights reserved.
+#  Copyright (c) 2018, Linaro Ltd. All rights reserved.
+#
+#  This program and the accompanying materials
+#  are licensed and made available under the terms and conditions of the BSD License
+#  which accompanies this distribution.  The full text of the license may be found at
+#  http://opensource.org/licenses/bsd-license.php
+#
+#  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = HiKeyDxe
+  FILE_GUID                      = f567684b-1089-4214-8881-d64b20cbda2f
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = HiKeyEntryPoint
+
+[Sources.common]
+  HiKeyDxe.c
+
+[Packages]
+  ArmPkg/ArmPkg.dec
+  EmbeddedPkg/Drivers/VirtualKeyboardDxe/VirtualKeyboardDxe.dec
+  EmbeddedPkg/EmbeddedPkg.dec
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+  BaseMemoryLib
+  CacheMaintenanceLib
+  DebugLib
+  DxeServicesLib
+  DxeServicesTableLib
+  FdtLib
+  IoLib
+  PcdLib
+  PrintLib
+  SerialPortLib
+  TimerLib
+  UefiBootServicesTableLib
+  UefiRuntimeServicesTableLib
+  UefiLib
+  UefiDriverEntryPoint
+
+[Protocols]
+  gEmbeddedGpioProtocolGuid
+  gPlatformVirtualKeyboardProtocolGuid
+
+[Guids]
+  gEfiEndOfDxeEventGroupGuid
+  gEfiFileInfoGuid
+
+[Depex]
+  TRUE
diff --git a/Silicon/Hisilicon/Hi6220/Include/Hi6220RegsPeri.h b/Silicon/Hisilicon/Hi6220/Include/Hi6220RegsPeri.h
new file mode 100644
index 0000000..8419685
--- /dev/null
+++ b/Silicon/Hisilicon/Hi6220/Include/Hi6220RegsPeri.h
@@ -0,0 +1,48 @@ 
+/** @file
+*
+*  Copyright (c) 2018, Linaro Ltd. All rights reserved.
+*
+*  This program and the accompanying materials
+*  are licensed and made available under the terms and conditions of the BSD License
+*  which accompanies this distribution.  The full text of the license may be found at
+*  http://opensource.org/licenses/bsd-license.php
+*
+*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#ifndef __HI6220_REGS_PERI_H__
+#define __HI6220_REGS_PERI_H__
+
+#define SC_PERIPH_CLKEN3                0x230
+#define SC_PERIPH_RSTEN3                0x330
+#define SC_PERIPH_RSTDIS0               0x304
+#define SC_PERIPH_RSTDIS3               0x334
+#define SC_PERIPH_RSTSTAT3              0x338
+
+/* SC_PERIPH_RSTEN0/RSTDIS0/RSTSTAT0 */
+#define PERIPH_RST0_MMC2                (1 << 2)
+
+/* SC_PERIPH_RSTEN3/RSTDIS3/RSTSTAT3 */
+#define PERIPH_RST3_CSSYS               (1 << 0)
+#define PERIPH_RST3_I2C0                (1 << 1)
+#define PERIPH_RST3_I2C1                (1 << 2)
+#define PERIPH_RST3_I2C2                (1 << 3)
+#define PERIPH_RST3_I2C3                (1 << 4)
+#define PERIPH_RST3_UART1               (1 << 5)
+#define PERIPH_RST3_UART2               (1 << 6)
+#define PERIPH_RST3_UART3               (1 << 7)
+#define PERIPH_RST3_UART4               (1 << 8)
+#define PERIPH_RST3_SSP                 (1 << 9)
+#define PERIPH_RST3_PWM                 (1 << 10)
+#define PERIPH_RST3_BLPWM               (1 << 11)
+#define PERIPH_RST3_TSENSOR             (1 << 12)
+#define PERIPH_RST3_DAPB                (1 << 18)
+#define PERIPH_RST3_HKADC               (1 << 19)
+#define PERIPH_RST3_CODEC_SSI           (1 << 20)
+#define PERIPH_RST3_PMUSSI1             (1 << 22)
+
+#define PMUSSI_REG(x)                   (PMUSSI_BASE + ((x) << 2))
+
+#endif /* __HI6220_REGS_PERI_H__ */