diff options
| -rw-r--r-- | QuarkPlatformPkg/Library/PlatformSecureLib/PlatformSecureLib.c | 71 |
1 files changed, 5 insertions, 66 deletions
diff --git a/QuarkPlatformPkg/Library/PlatformSecureLib/PlatformSecureLib.c b/QuarkPlatformPkg/Library/PlatformSecureLib/PlatformSecureLib.c index 169980c1b8..7f60c5c1e0 100644 --- a/QuarkPlatformPkg/Library/PlatformSecureLib/PlatformSecureLib.c +++ b/QuarkPlatformPkg/Library/PlatformSecureLib/PlatformSecureLib.c @@ -1,7 +1,7 @@ /** @file
Provides a secure platform-specific method to detect physically present user.
-Copyright (c) 2013 Intel Corporation.
+Copyright (c) 2013 - 2016 Intel Corporation.
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -39,26 +39,9 @@ CheckResetButtonState ( UINTN ReadLength;
UINT8 Buffer[2];
- DEBUG ((EFI_D_ERROR, "CheckResetButtonState(): mPlatformType == %d\n", mPlatformType));
+ DEBUG ((EFI_D_INFO, "CheckResetButtonState(): mPlatformType == %d\n", mPlatformType));
if (mPlatformType == GalileoGen2) {
//
- // Reset Button - EXP2.P1_7 should be configured as an input.
- //
- PlatformPcal9555GpioSetDir (
- GALILEO_GEN2_IOEXP2_7BIT_SLAVE_ADDR, // IO Expander 2.
- 15, // P1-7.
- FALSE
- );
-
- //
- // Reset Button - EXP2.P1_7 pullup should be disabled.
- //
- PlatformPcal9555GpioDisablePull (
- GALILEO_GEN2_IOEXP2_7BIT_SLAVE_ADDR, // IO Expander 2.
- 15 // P1-7.
- );
-
- //
// Read state of Reset Button - EXP2.P1_7
// This GPIO is pulled high when the button is not pressed
// This GPIO reads low when button is pressed
@@ -77,58 +60,14 @@ CheckResetButtonState ( } else {
I2CSlaveAddress.I2CDeviceAddress = GALILEO_IOEXP_J2LO_7BIT_SLAVE_ADDR;
}
+ DEBUG ((EFI_D_INFO, "Galileo GPIO Expender Slave Address = %02x\n", I2CSlaveAddress.I2CDeviceAddress));
//
- // Select Port 5
- //
- Length = 2;
- Buffer[0] = 0x18;
- Buffer[1] = 0x05;
- Status = I2cWriteMultipleByte (
- I2CSlaveAddress,
- EfiI2CSevenBitAddrMode,
- &Length,
- &Buffer
- );
- ASSERT_EFI_ERROR (Status);
-
- //
- // Read "Pin Direction" of Port 5
- //
- Length = 1;
- ReadLength = 1;
- Buffer[1] = 0x1C;
- Status = I2cReadMultipleByte (
- I2CSlaveAddress,
- EfiI2CSevenBitAddrMode,
- &Length,
- &ReadLength,
- &Buffer[1]
- );
- ASSERT_EFI_ERROR (Status);
-
- //
- // Set "Pin Direction" of Port 5, Bit 0 as input
- //
- Length = 2;
- Buffer[0] = 0x1C;
- Buffer[1] = Buffer[1] | BIT0;
-
- Status = I2cWriteMultipleByte (
- I2CSlaveAddress,
- EfiI2CSevenBitAddrMode,
- &Length,
- &Buffer
- );
- ASSERT_EFI_ERROR (Status);
-
- //
- // Read Port 5
+ // Read state of RESET_N_SHLD (GPORT5_BIT0)
//
Buffer[1] = 5;
Length = 1;
ReadLength = 1;
-
Status = I2cReadMultipleByte (
I2CSlaveAddress,
EfiI2CSevenBitAddrMode,
@@ -139,7 +78,7 @@ CheckResetButtonState ( ASSERT_EFI_ERROR (Status);
//
- // Return the state of Port 5, Bit 0
+ // Return the state of GPORT5_BIT0
//
return ((Buffer[1] & BIT0) != 0);
}
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