[edk2] [platforms: PATCH v2 06/12] Marvell/Drivers: MvBoardDesc: Extend protocol with GPIO support

[Marcin Wojtas]

Introduce new callback that can provide information
about GPIO SoC controllers, as well as on-board
I2C IO expanders. According ArmadaSoCDescLib
ArmadaBoardDescLib routines are used for
obtaining required data.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marcin Wojtas <m...@semihalf.com>
---
 Silicon/Marvell/Include/Protocol/BoardDesc.h       |  8 ++++
 Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.c | 43 ++++++++++++++++++++
 2 files changed, 51 insertions(+)

diff --git a/Silicon/Marvell/Include/Protocol/BoardDesc.h 
b/Silicon/Marvell/Include/Protocol/BoardDesc.h
index 1d57a16..02905ea 100644
--- a/Silicon/Marvell/Include/Protocol/BoardDesc.h
+++ b/Silicon/Marvell/Include/Protocol/BoardDesc.h
@@ -50,6 +50,13 @@ EFI_STATUS
 
 typedef
 EFI_STATUS
+(EFIAPI *MV_BOARD_GPIO_DESCRIPTION_GET) (
+  IN MARVELL_BOARD_DESC_PROTOCOL    *This,
+  IN OUT MV_BOARD_GPIO_DESCRIPTION **GpioDescription
+  );
+
+typedef
+EFI_STATUS
 (EFIAPI *MV_BOARD_DESC_I2C_GET) (
   IN MARVELL_BOARD_DESC_PROTOCOL  *This,
   IN OUT MV_BOARD_I2C_DESC       **I2cDesc
@@ -113,6 +120,7 @@ struct _MARVELL_BOARD_DESC_PROTOCOL {
   MV_BOARD_DESC_UTMI_GET         BoardDescUtmiGet;
   MV_BOARD_DESC_XHCI_GET         BoardDescXhciGet;
   MV_BOARD_DESC_FREE             BoardDescFree;
+  MV_BOARD_GPIO_DESCRIPTION_GET  GpioDescriptionGet;
 };
 
 #endif // __MARVELL_BOARD_DESC_PROTOCOL_H__
diff --git a/Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.c 
b/Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.c
index f71bfc4..e348b85 100644
--- a/Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.c
+++ b/Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.c
@@ -100,6 +100,48 @@ MvBoardDescComPhyGet (
 
 STATIC
 EFI_STATUS
+MvBoardGpioDescriptionGet (
+  IN MARVELL_BOARD_DESC_PROTOCOL    *This,
+  IN OUT MV_BOARD_GPIO_DESCRIPTION **GpioDescription
+  )
+{
+  MV_BOARD_GPIO_DESCRIPTION *Description;
+  UINTN SoCGpioCount, GpioExpanderCount;
+  MV_GPIO_EXPANDER *GpioExpanders;
+  GPIO_CONTROLLER *SoCGpio;
+  EFI_STATUS Status;
+
+  /* Get SoC data about all available GPIO controllers */
+  Status = ArmadaSoCGpioGet (&SoCGpio, &SoCGpioCount);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  /* Get per-board information about all available I2C IO expanders */
+  Status = ArmadaBoardGpioExpanderGet (&GpioExpanders, &GpioExpanderCount);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  /* Allocate and fill board description */
+  Description = AllocateZeroPool (sizeof (MV_BOARD_GPIO_DESCRIPTION));
+  if (Description == NULL) {
+    DEBUG ((DEBUG_ERROR, "%a: Cannot allocate memory\n", __FUNCTION__));
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  Description->SoCGpio = SoCGpio;
+  Description->GpioDeviceCount = SoCGpioCount;
+  Description->GpioExpanders = GpioExpanders;
+  Description->GpioExpanderCount = GpioExpanderCount;
+
+  *GpioDescription = Description;
+
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
 MvBoardDescI2cGet (
   IN MARVELL_BOARD_DESC_PROTOCOL  *This,
   IN OUT MV_BOARD_I2C_DESC       **I2cDesc
@@ -571,6 +613,7 @@ MvBoardDescInitProtocol (
   BoardDescProtocol->BoardDescUtmiGet = MvBoardDescUtmiGet;
   BoardDescProtocol->BoardDescXhciGet = MvBoardDescXhciGet;
   BoardDescProtocol->BoardDescFree = MvBoardDescFree;
+  BoardDescProtocol->GpioDescriptionGet = MvBoardGpioDescriptionGet;
 
   return EFI_SUCCESS;
 }
-- 
2.7.4

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