[PATCH 3/4] Drivers/SataSiI3132Dxe: Enable multi-controller support

[Daniil Egranov <daniil.egranov@arm.com>]

Saved controller specific data into the driver's information structure.
Removed global variable indicating the driver's status and added
check for the driver's status based on the available protocol.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Daniil Egranov <daniil.egranov@arm.com>
---
 EmbeddedPkg/Drivers/SataSiI3132Dxe/SataSiI3132.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/EmbeddedPkg/Drivers/SataSiI3132Dxe/SataSiI3132.c b/EmbeddedPkg/Drivers/SataSiI3132Dxe/SataSiI3132.c
index c1760fdc1b..50253b9160 100644
--- a/EmbeddedPkg/Drivers/SataSiI3132Dxe/SataSiI3132.c
+++ b/EmbeddedPkg/Drivers/SataSiI3132Dxe/SataSiI3132.c
@@ -309,8 +309,6 @@ ON_EXIT:
   return Status;
 }
 
-BOOLEAN mbStarted = FALSE;
-
 /**
   Starting the Pci SATA Driver.
 
@@ -342,9 +340,18 @@ SataSiI3132DriverBindingStart (
 
   SATA_TRACE ("SataSiI3132DriverBindingStart()");
 
-  //TODO: Find a nicer way to do it !
-  if (mbStarted) {
-    return EFI_SUCCESS; // Don't restart me !
+  Status = gBS->OpenProtocol (
+        Controller,
+        &gEfiAtaPassThruProtocolGuid,
+        NULL,
+        This->DriverBindingHandle,
+        Controller,
+        EFI_OPEN_PROTOCOL_TEST_PROTOCOL
+        );
+
+  if (!EFI_ERROR (Status)) {
+    SATA_TRACE ("SataSiI3132DriverBindingStart: driver already started");
+    return Status;
   }
 
   //
@@ -426,6 +433,8 @@ SataSiI3132DriverBindingStart (
     return Status;
   }
 
+  SataSiI3132Instance->OriginalPciAttributes = OriginalPciAttributes;
+
   // Initialize SiI3132 Sata Controller
   Status = SataSiI3132Initialization (SataSiI3132Instance);
   if (EFI_ERROR (Status)) {
@@ -458,8 +467,6 @@ SataSiI3132DriverBindingStart (
       goto UNINSTALL_USBHC;
   }*/
 
-  mbStarted = TRUE;
-
   SATA_TRACE ("SataSiI3132DriverBindingStart() Success!");
   return EFI_SUCCESS;
 
-- 
2.11.0