From 2de299f86541c1aa0e490239193ff8c0f4ad799c Mon Sep 17 00:00:00 2001
From: Haojian Zhuang <haojian.zhuang@linaro.org>
Date: Tue, 13 Jun 2017 09:08:19 +0800
Subject: Platforms/HiKey: enable ram keyboard

Send out 'f' hotkey if adb reboot bootloader pattern is detected.
Then UEFI enters AndroidFastbootApp.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 Platforms/Hisilicon/HiKey/HiKey.dsc             |  5 ++
 Platforms/Hisilicon/HiKey/HiKey.fdf             |  5 ++
 Platforms/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.c   | 67 ++++++++++++++++++++++++-
 Platforms/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.inf |  2 +
 4 files changed, 78 insertions(+), 1 deletion(-)

diff --git a/Platforms/Hisilicon/HiKey/HiKey.dsc b/Platforms/Hisilicon/HiKey/HiKey.dsc
index 1cf24eb..67ebdf5 100644
--- a/Platforms/Hisilicon/HiKey/HiKey.dsc
+++ b/Platforms/Hisilicon/HiKey/HiKey.dsc
@@ -421,6 +421,11 @@
   #
   OpenPlatformPkg/Drivers/Keyboard/GpioKeyboardDxe/GpioKeyboardDxe.inf
 
+  #
+  # RAM Keyboard
+  #
+  OpenPlatformPkg/Drivers/Keyboard/RamKeyboardDxe/RamKeyboardDxe.inf
+
   OpenPlatformPkg/Platforms/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.inf
 
   #
diff --git a/Platforms/Hisilicon/HiKey/HiKey.fdf b/Platforms/Hisilicon/HiKey/HiKey.fdf
index bd80c79..428815f 100644
--- a/Platforms/Hisilicon/HiKey/HiKey.fdf
+++ b/Platforms/Hisilicon/HiKey/HiKey.fdf
@@ -125,6 +125,11 @@ READ_LOCK_STATUS   = TRUE
   #
   INF OpenPlatformPkg/Drivers/Keyboard/GpioKeyboardDxe/GpioKeyboardDxe.inf
 
+  #
+  # RAM Keyboard
+  #
+  INF OpenPlatformPkg/Drivers/Keyboard/RamKeyboardDxe/RamKeyboardDxe.inf
+
   INF OpenPlatformPkg/Platforms/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.inf
 
   #
diff --git a/Platforms/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.c b/Platforms/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.c
index 174dfca..5815c95 100644
--- a/Platforms/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.c
+++ b/Platforms/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.c
@@ -27,6 +27,7 @@
 #include <Protocol/Abootimg.h>
 #include <Protocol/BlockIo.h>
 #include <Protocol/PlatformGpioKeyboard.h>
+#include <Protocol/PlatformRamKeyboard.h>
 
 #include <Hi6220.h>
 #include <libfdt.h>
@@ -41,6 +42,11 @@
 
 #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;
@@ -264,6 +270,56 @@ PLATFORM_GPIO_KBD_PROTOCOL mGpioKeyboard = {
   GpioKeyboardRegister
 };
 
+EFI_STATUS
+EFIAPI
+RamKeyboardRegister (
+  IN OUT RAM_KBD_KEY                         *RamKey
+  )
+{
+  if (RamKey == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+  RamKey->Signature = RAM_KBD_KEY_NEXT_SIGNATURE;
+  RamKey->Base = ADB_REBOOT_ADDRESS;
+  RamKey->Key.ScanCode = SCAN_NULL;
+  RamKey->Key.UnicodeChar = L'f';
+  return EFI_SUCCESS;
+}
+
+BOOLEAN
+EFIAPI
+RamKeyboardQuery (
+  IN RAM_KBD_KEY                             *RamKey
+  )
+{
+  if ((RamKey == NULL) || (RamKey->Base == 0)) {
+    return FALSE;
+  }
+  if (MmioRead32 (RamKey->Base) != ADB_REBOOT_BOOTLOADER) {
+    return FALSE;
+  }
+  return TRUE;
+}
+
+EFI_STATUS
+EFIAPI
+RamKeyboardClear (
+  IN RAM_KBD_KEY                             *RamKey
+  )
+{
+  if ((RamKey == NULL) || (RamKey->Base == 0)) {
+    return FALSE;
+  }
+  MmioWrite32 (RamKey->Base, ADB_REBOOT_NONE);
+  return EFI_SUCCESS;
+}
+
+PLATFORM_RAM_KBD_PROTOCOL mRamKeyboard = {
+  RamKeyboardRegister,
+  RamKeyboardQuery,
+  RamKeyboardClear
+};
+
 EFI_STATUS
 EFIAPI
 HiKeyEntryPoint (
@@ -294,6 +350,15 @@ HiKeyEntryPoint (
                   EFI_NATIVE_INTERFACE,
                   &mGpioKeyboard
                   );
-DEBUG ((DEBUG_ERROR, "#%a, %d, Status:%r\n", __func__, __LINE__, Status));
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  Status = gBS->InstallProtocolInterface (
+                  &ImageHandle,
+                  &gPlatformRamKeyboardProtocolGuid,
+                  EFI_NATIVE_INTERFACE,
+                  &mRamKeyboard
+                  );
   return Status;
 }
diff --git a/Platforms/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.inf b/Platforms/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.inf
index dcc2b9e..4b1b8e9 100644
--- a/Platforms/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.inf
+++ b/Platforms/Hisilicon/HiKey/HiKeyDxe/HiKeyDxe.inf
@@ -29,6 +29,7 @@
   MdePkg/MdePkg.dec
   MdeModulePkg/MdeModulePkg.dec
   OpenPlatformPkg/Drivers/Keyboard/GpioKeyboardDxe/GpioKeyboardDxe.dec
+  OpenPlatformPkg/Drivers/Keyboard/RamKeyboardDxe/RamKeyboardDxe.dec
   OpenPlatformPkg/Platforms/Hisilicon/HiKey/HiKey.dec
 
 [LibraryClasses]
@@ -52,6 +53,7 @@
   gAbootimgProtocolGuid
   gEfiBlockIoProtocolGuid
   gPlatformGpioKeyboardProtocolGuid
+  gPlatformRamKeyboardProtocolGuid
 
 [Guids]
   gEfiEndOfDxeEventGroupGuid
-- 
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