diff options
| -rw-r--r-- | MdeModulePkg/Library/BaseSerialPortLib16550/BaseSerialPortLib16550.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/MdeModulePkg/Library/BaseSerialPortLib16550/BaseSerialPortLib16550.c b/MdeModulePkg/Library/BaseSerialPortLib16550/BaseSerialPortLib16550.c index dfccbc3847..82dc7bb078 100644 --- a/MdeModulePkg/Library/BaseSerialPortLib16550/BaseSerialPortLib16550.c +++ b/MdeModulePkg/Library/BaseSerialPortLib16550/BaseSerialPortLib16550.c @@ -128,9 +128,10 @@ SerialPortInitialize ( if ((SerialPortReadRegister (R_UART_LCR) & 0x3F) != (PcdGet8 (PcdSerialLineControl) & 0x3F)) {
Initialized = FALSE;
}
- SerialPortWriteRegister (R_UART_LCR, SerialPortReadRegister (R_UART_LCR) | B_UART_LCR_DLAB);
- Divisor = (SerialPortReadRegister (R_UART_BAUD_HIGH) << 8) | SerialPortReadRegister (R_UART_BAUD_LOW);
- SerialPortWriteRegister (R_UART_LCR, SerialPortReadRegister (R_UART_LCR) & ~B_UART_LCR_DLAB);
+ SerialPortWriteRegister (R_UART_LCR, (UINT8)(SerialPortReadRegister (R_UART_LCR) | B_UART_LCR_DLAB));
+ Divisor = SerialPortReadRegister (R_UART_BAUD_HIGH) << 8;
+ Divisor |= SerialPortReadRegister (R_UART_BAUD_LOW);
+ SerialPortWriteRegister (R_UART_LCR, (UINT8)(SerialPortReadRegister (R_UART_LCR) & ~B_UART_LCR_DLAB));
if (Divisor != 115200 / PcdGet32 (PcdSerialBaudRate)) {
Initialized = FALSE;
}
@@ -150,13 +151,13 @@ SerialPortInitialize ( // Clear DLAB and configure Data Bits, Parity, and Stop Bits.
// Strip reserved bits from PcdSerialLineControl
//
- SerialPortWriteRegister (R_UART_LCR, PcdGet8 (PcdSerialLineControl) & 0x3F);
+ SerialPortWriteRegister (R_UART_LCR, (UINT8)(PcdGet8 (PcdSerialLineControl) & 0x3F));
//
// Enable and reset FIFOs
// Strip reserved bits from PcdSerialFifoControl
//
- SerialPortWriteRegister (R_UART_FCR, PcdGet8 (PcdSerialFifoControl) & 0x17);
+ SerialPortWriteRegister (R_UART_FCR, (UINT8)(PcdGet8 (PcdSerialFifoControl) & 0x17));
//
// Put Modem Control Register(MCR) into its reset state of 0x00.
@@ -265,7 +266,7 @@ SerialPortRead ( return 0;
}
- Mcr = SerialPortReadRegister (R_UART_MCR) & ~B_UART_MCR_RTS;
+ Mcr = (UINT8)(SerialPortReadRegister (R_UART_MCR) & ~B_UART_MCR_RTS);
for (Result = 0; NumberOfBytes-- != 0; Result++, Buffer++) {
//
@@ -276,7 +277,7 @@ SerialPortRead ( //
// Set RTS to let the peer send some data
//
- SerialPortWriteRegister (R_UART_MCR, Mcr | B_UART_MCR_RTS);
+ SerialPortWriteRegister (R_UART_MCR, (UINT8)(Mcr | B_UART_MCR_RTS));
}
}
if (PcdGetBool (PcdSerialUseHardwareFlowControl)) {
@@ -320,7 +321,7 @@ SerialPortPoll ( //
// Clear RTS to prevent peer from sending data
//
- SerialPortWriteRegister (R_UART_MCR, SerialPortReadRegister (R_UART_MCR) & ~B_UART_MCR_RTS);
+ SerialPortWriteRegister (R_UART_MCR, (UINT8)(SerialPortReadRegister (R_UART_MCR) & ~B_UART_MCR_RTS));
}
return TRUE;
}
@@ -329,7 +330,7 @@ SerialPortPoll ( //
// Set RTS to let the peer send some data
//
- SerialPortWriteRegister (R_UART_MCR, SerialPortReadRegister (R_UART_MCR) | B_UART_MCR_RTS);
+ SerialPortWriteRegister (R_UART_MCR, (UINT8)(SerialPortReadRegister (R_UART_MCR) | B_UART_MCR_RTS));
}
return FALSE;
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