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authoroliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524>2011-07-01 15:30:01 +0000
committeroliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524>2011-07-01 15:30:01 +0000
commit5cc45b70c310f853f28b2351f3d93109ff858dcf (patch)
tree22917c5dfa20a9f553c1adda9ce6efc04b722dc7 /ArmPlatformPkg/Drivers/PL061GpioDxe/PL061Gpio.c
parent7fb54d9d04f52e22f6df16e0035c565c3dce7bd4 (diff)
downloadedk2-5cc45b70c310f853f28b2351f3d93109ff858dcf.tar.gz
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ArmPkg: Move ARM Platform drivers from ArmPkg/Drivers/ to ArmPlatformPkg/Drivers/
The idea is to keep ArmPkg responsible for the ARM architectural modules and ArmPlatformPkg the ARM development platform packages (with their respective drivers). ArmPlatformPkg: Reduce driver dependency on ArmPlatform.h - Move some driver definitions from C-Macro to PCD values - Unify PCD driver namespace git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11956 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPlatformPkg/Drivers/PL061GpioDxe/PL061Gpio.c')
-rw-r--r--ArmPlatformPkg/Drivers/PL061GpioDxe/PL061Gpio.c73
1 files changed, 35 insertions, 38 deletions
diff --git a/ArmPlatformPkg/Drivers/PL061GpioDxe/PL061Gpio.c b/ArmPlatformPkg/Drivers/PL061GpioDxe/PL061Gpio.c
index 0e263c03a7..cb811d89d6 100644
--- a/ArmPlatformPkg/Drivers/PL061GpioDxe/PL061Gpio.c
+++ b/ArmPlatformPkg/Drivers/PL061GpioDxe/PL061Gpio.c
@@ -13,23 +13,20 @@
**/
-#include <Base.h>
#include <PiDxe.h>
#include <Library/BaseLib.h>
-#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/IoLib.h>
+#include <Library/PcdLib.h>
#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/UefiLib.h>
-#include <Library/IoLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
#include <Protocol/EmbeddedGpio.h>
-#include <ArmPlatform.h>
#include <Drivers/PL061Gpio.h>
-#define LOW_4_BITS 0x0000000F
-
BOOLEAN mPL061Initialized = FALSE;
/**
@@ -42,18 +39,18 @@ PL061Identify (
)
{
// Check if this is a PrimeCell Peripheral
- if( ( MmioRead8( PL061_GPIO_PCELL_ID0 ) != 0x0D )
- || ( MmioRead8( PL061_GPIO_PCELL_ID1 ) != 0xF0 )
- || ( MmioRead8( PL061_GPIO_PCELL_ID2 ) != 0x05 )
- || ( MmioRead8( PL061_GPIO_PCELL_ID3 ) != 0xB1 ) ) {
+ if ( (MmioRead8 (PL061_GPIO_PCELL_ID0) != 0x0D)
+ || (MmioRead8 (PL061_GPIO_PCELL_ID1) != 0xF0)
+ || (MmioRead8 (PL061_GPIO_PCELL_ID2) != 0x05)
+ || (MmioRead8 (PL061_GPIO_PCELL_ID3) != 0xB1)) {
return EFI_NOT_FOUND;
}
// Check if this PrimeCell Peripheral is the PL061 GPIO
- if( ( MmioRead8( PL061_GPIO_PERIPH_ID0 ) != 0x61 )
- || ( MmioRead8( PL061_GPIO_PERIPH_ID1 ) != 0x10 )
- || ( ( MmioRead8( PL061_GPIO_PERIPH_ID2 ) & LOW_4_BITS ) != 0x04 )
- || ( MmioRead8( PL061_GPIO_PERIPH_ID3 ) != 0x00 ) ) {
+ if ( (MmioRead8 (PL061_GPIO_PERIPH_ID0) != 0x61)
+ || (MmioRead8 (PL061_GPIO_PERIPH_ID1) != 0x10)
+ || ((MmioRead8 (PL061_GPIO_PERIPH_ID2) & 0xF) != 0x04)
+ || (MmioRead8 (PL061_GPIO_PERIPH_ID3) != 0x00)) {
return EFI_NOT_FOUND;
}
@@ -62,14 +59,14 @@ PL061Identify (
EFI_STATUS
PL061Initialize (
-VOID
+ VOID
)
{
EFI_STATUS Status;
// Check if the PL061 GPIO module exists on board
Status = PL061Identify();
- if (EFI_ERROR( Status )) {
+ if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto EXIT;
}
@@ -77,7 +74,7 @@ VOID
// Do other hardware initialisation things here as required
// Disable Interrupts
- //if( MmioRead8( PL061_GPIO_IE_REG ) != 0 ) {
+ //if (MmioRead8 (PL061_GPIO_IE_REG) != 0) {
// // Ensure interrupts are disabled
//}
@@ -114,21 +111,21 @@ Get (
{
EFI_STATUS Status = EFI_SUCCESS;
- if( ( Value == NULL )
- || ( Gpio > LAST_GPIO_PIN ) )
+ if ( (Value == NULL)
+ || (Gpio > LAST_GPIO_PIN))
{
return EFI_INVALID_PARAMETER;
}
// Initialize the hardware if not already done
- if( !mPL061Initialized ) {
+ if (!mPL061Initialized) {
Status = PL061Initialize();
- if( EFI_ERROR(Status) ) {
+ if (EFI_ERROR(Status)) {
goto EXIT;
}
}
- if( MmioRead8( PL061_GPIO_DATA_REG ) & GPIO_PIN_MASK_HIGH_8BIT(Gpio) ) {
+ if (MmioRead8 (PL061_GPIO_DATA_REG) & GPIO_PIN_MASK_HIGH_8BIT(Gpio)) {
*Value = 1;
} else {
*Value = 0;
@@ -167,15 +164,15 @@ Set (
EFI_STATUS Status = EFI_SUCCESS;
// Check for errors
- if( Gpio > LAST_GPIO_PIN ) {
+ if (Gpio > LAST_GPIO_PIN) {
Status = EFI_INVALID_PARAMETER;
goto EXIT;
}
// Initialize the hardware if not already done
- if( !mPL061Initialized ) {
+ if (!mPL061Initialized) {
Status = PL061Initialize();
- if( EFI_ERROR(Status) ) {
+ if (EFI_ERROR(Status)) {
goto EXIT;
}
}
@@ -184,21 +181,21 @@ Set (
{
case GPIO_MODE_INPUT:
// Set the corresponding direction bit to LOW for input
- MmioAnd8( PL061_GPIO_DIR_REG, GPIO_PIN_MASK_LOW_8BIT(Gpio) );
+ MmioAnd8 (PL061_GPIO_DIR_REG, GPIO_PIN_MASK_LOW_8BIT(Gpio));
break;
case GPIO_MODE_OUTPUT_0:
// Set the corresponding data bit to LOW for 0
- MmioAnd8( PL061_GPIO_DATA_REG, GPIO_PIN_MASK_LOW_8BIT(Gpio) );
+ MmioAnd8 (PL061_GPIO_DATA_REG, GPIO_PIN_MASK_LOW_8BIT(Gpio));
// Set the corresponding direction bit to HIGH for output
- MmioOr8( PL061_GPIO_DIR_REG, GPIO_PIN_MASK_HIGH_8BIT(Gpio) );
+ MmioOr8 (PL061_GPIO_DIR_REG, GPIO_PIN_MASK_HIGH_8BIT(Gpio));
break;
case GPIO_MODE_OUTPUT_1:
// Set the corresponding data bit to HIGH for 1
- MmioOr8( PL061_GPIO_DATA_REG, GPIO_PIN_MASK_HIGH_8BIT(Gpio) );
+ MmioOr8 (PL061_GPIO_DATA_REG, GPIO_PIN_MASK_HIGH_8BIT(Gpio));
// Set the corresponding direction bit to HIGH for output
- MmioOr8( PL061_GPIO_DIR_REG, GPIO_PIN_MASK_HIGH_8BIT(Gpio) );
+ MmioOr8 (PL061_GPIO_DIR_REG, GPIO_PIN_MASK_HIGH_8BIT(Gpio));
break;
default:
@@ -239,23 +236,23 @@ GetMode (
EFI_STATUS Status;
// Check for errors
- if( ( Mode == NULL )
- || ( Gpio > LAST_GPIO_PIN ) ) {
+ if ( (Mode == NULL)
+ || (Gpio > LAST_GPIO_PIN)) {
return EFI_INVALID_PARAMETER;
}
// Initialize the hardware if not already done
- if( !mPL061Initialized ) {
+ if (!mPL061Initialized) {
Status = PL061Initialize();
- if( EFI_ERROR(Status) ) {
+ if (EFI_ERROR(Status)) {
return Status;
}
}
// Check if it is input or output
- if( MmioRead8( PL061_GPIO_DIR_REG ) & GPIO_PIN_MASK_HIGH_8BIT(Gpio) ) {
+ if (MmioRead8 (PL061_GPIO_DIR_REG) & GPIO_PIN_MASK_HIGH_8BIT(Gpio)) {
// Pin set to output
- if( MmioRead8( PL061_GPIO_DATA_REG ) & GPIO_PIN_MASK_HIGH_8BIT(Gpio) ) {
+ if (MmioRead8 (PL061_GPIO_DATA_REG) & GPIO_PIN_MASK_HIGH_8BIT(Gpio)) {
*Mode = GPIO_MODE_OUTPUT_1;
} else {
*Mode = GPIO_MODE_OUTPUT_0;
@@ -338,7 +335,7 @@ PL061InstallProtocol (
&Handle,
&gEmbeddedGpioProtocolGuid, &gGpio,
NULL
- );
+ );
if (EFI_ERROR(Status)) {
Status = EFI_OUT_OF_RESOURCES;
}