diff options
Diffstat (limited to 'MdeModulePkg/Universal/SerialDxe/SerialIo.c')
| -rw-r--r-- | MdeModulePkg/Universal/SerialDxe/SerialIo.c | 227 |
1 files changed, 118 insertions, 109 deletions
diff --git a/MdeModulePkg/Universal/SerialDxe/SerialIo.c b/MdeModulePkg/Universal/SerialDxe/SerialIo.c index fb816a1611..25be8634ab 100644 --- a/MdeModulePkg/Universal/SerialDxe/SerialIo.c +++ b/MdeModulePkg/Universal/SerialDxe/SerialIo.c @@ -19,9 +19,9 @@ #include <Guid/SerialPortLibVendor.h>
typedef struct {
- VENDOR_DEVICE_PATH Guid;
- UART_DEVICE_PATH Uart;
- EFI_DEVICE_PATH_PROTOCOL End;
+ VENDOR_DEVICE_PATH Guid;
+ UART_DEVICE_PATH Uart;
+ EFI_DEVICE_PATH_PROTOCOL End;
} SERIAL_DEVICE_PATH;
/**
@@ -36,7 +36,7 @@ typedef struct { EFI_STATUS
EFIAPI
SerialReset (
- IN EFI_SERIAL_IO_PROTOCOL *This
+ IN EFI_SERIAL_IO_PROTOCOL *This
);
/**
@@ -69,13 +69,13 @@ SerialReset ( EFI_STATUS
EFIAPI
SerialSetAttributes (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN UINT64 BaudRate,
- IN UINT32 ReceiveFifoDepth,
- IN UINT32 Timeout,
- IN EFI_PARITY_TYPE Parity,
- IN UINT8 DataBits,
- IN EFI_STOP_BITS_TYPE StopBits
+ IN EFI_SERIAL_IO_PROTOCOL *This,
+ IN UINT64 BaudRate,
+ IN UINT32 ReceiveFifoDepth,
+ IN UINT32 Timeout,
+ IN EFI_PARITY_TYPE Parity,
+ IN UINT8 DataBits,
+ IN EFI_STOP_BITS_TYPE StopBits
);
/**
@@ -92,8 +92,8 @@ SerialSetAttributes ( EFI_STATUS
EFIAPI
SerialSetControl (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN UINT32 Control
+ IN EFI_SERIAL_IO_PROTOCOL *This,
+ IN UINT32 Control
);
/**
@@ -109,8 +109,8 @@ SerialSetControl ( EFI_STATUS
EFIAPI
SerialGetControl (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- OUT UINT32 *Control
+ IN EFI_SERIAL_IO_PROTOCOL *This,
+ OUT UINT32 *Control
);
/**
@@ -129,9 +129,9 @@ SerialGetControl ( EFI_STATUS
EFIAPI
SerialWrite (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN OUT UINTN *BufferSize,
- IN VOID *Buffer
+ IN EFI_SERIAL_IO_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ IN VOID *Buffer
);
/**
@@ -150,46 +150,49 @@ SerialWrite ( EFI_STATUS
EFIAPI
SerialRead (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN OUT UINTN *BufferSize,
- OUT VOID *Buffer
+ IN EFI_SERIAL_IO_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ OUT VOID *Buffer
);
-EFI_HANDLE mSerialHandle = NULL;
+EFI_HANDLE mSerialHandle = NULL;
-SERIAL_DEVICE_PATH mSerialDevicePath = {
+SERIAL_DEVICE_PATH mSerialDevicePath = {
{
- { HARDWARE_DEVICE_PATH, HW_VENDOR_DP, { sizeof (VENDOR_DEVICE_PATH), 0} },
+ { HARDWARE_DEVICE_PATH, HW_VENDOR_DP, { sizeof (VENDOR_DEVICE_PATH), 0 }
+ },
EDKII_SERIAL_PORT_LIB_VENDOR_GUID
},
{
- { MESSAGING_DEVICE_PATH, MSG_UART_DP, { sizeof (UART_DEVICE_PATH), 0} },
+ { MESSAGING_DEVICE_PATH, MSG_UART_DP, { sizeof (UART_DEVICE_PATH), 0 }
+ },
0, // Reserved
0, // BaudRate
0, // DataBits
0, // Parity
0 // StopBits
},
- { END_DEVICE_PATH_TYPE, END_ENTIRE_DEVICE_PATH_SUBTYPE, { sizeof (EFI_DEVICE_PATH_PROTOCOL), 0 } }
+ { END_DEVICE_PATH_TYPE, END_ENTIRE_DEVICE_PATH_SUBTYPE, { sizeof (EFI_DEVICE_PATH_PROTOCOL), 0 }
+ }
};
//
// Template used to initialize the Serial IO protocols.
//
-EFI_SERIAL_IO_MODE mSerialIoMode = {
+EFI_SERIAL_IO_MODE mSerialIoMode = {
//
// value field set in SerialDxeInitialize()?
- //--------- ------------------- -----------------------------
- 0, // ControlMask
+ // --------- ------------------- -----------------------------
+ 0, // ControlMask
1000 * 1000, // Timeout
- 0, // BaudRate yes
- 1, // ReceiveFifoDepth
- 0, // DataBits yes
- 0, // Parity yes
- 0 // StopBits yes
+ 0, // BaudRate yes
+ 1, // ReceiveFifoDepth
+ 0, // DataBits yes
+ 0, // Parity yes
+ 0 // StopBits yes
};
-EFI_SERIAL_IO_PROTOCOL mSerialIoTemplate = {
+EFI_SERIAL_IO_PROTOCOL mSerialIoTemplate = {
SERIAL_IO_INTERFACE_REVISION,
SerialReset,
SerialSetAttributes,
@@ -212,10 +215,10 @@ EFI_SERIAL_IO_PROTOCOL mSerialIoTemplate = { EFI_STATUS
EFIAPI
SerialReset (
- IN EFI_SERIAL_IO_PROTOCOL *This
+ IN EFI_SERIAL_IO_PROTOCOL *This
)
{
- EFI_STATUS Status;
+ EFI_STATUS Status;
Status = SerialPortInitialize ();
if (EFI_ERROR (Status)) {
@@ -230,9 +233,9 @@ SerialReset ( This->Mode->BaudRate,
This->Mode->ReceiveFifoDepth,
This->Mode->Timeout,
- (EFI_PARITY_TYPE) This->Mode->Parity,
- (UINT8) This->Mode->DataBits,
- (EFI_STOP_BITS_TYPE) This->Mode->StopBits
+ (EFI_PARITY_TYPE)This->Mode->Parity,
+ (UINT8)This->Mode->DataBits,
+ (EFI_STOP_BITS_TYPE)This->Mode->StopBits
);
//
@@ -277,36 +280,36 @@ SerialReset ( EFI_STATUS
EFIAPI
SerialSetAttributes (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN UINT64 BaudRate,
- IN UINT32 ReceiveFifoDepth,
- IN UINT32 Timeout,
- IN EFI_PARITY_TYPE Parity,
- IN UINT8 DataBits,
- IN EFI_STOP_BITS_TYPE StopBits
+ IN EFI_SERIAL_IO_PROTOCOL *This,
+ IN UINT64 BaudRate,
+ IN UINT32 ReceiveFifoDepth,
+ IN UINT32 Timeout,
+ IN EFI_PARITY_TYPE Parity,
+ IN UINT8 DataBits,
+ IN EFI_STOP_BITS_TYPE StopBits
)
{
- EFI_STATUS Status;
- EFI_TPL Tpl;
- UINT64 OriginalBaudRate;
- UINT32 OriginalReceiveFifoDepth;
- UINT32 OriginalTimeout;
- EFI_PARITY_TYPE OriginalParity;
- UINT8 OriginalDataBits;
- EFI_STOP_BITS_TYPE OriginalStopBits;
+ EFI_STATUS Status;
+ EFI_TPL Tpl;
+ UINT64 OriginalBaudRate;
+ UINT32 OriginalReceiveFifoDepth;
+ UINT32 OriginalTimeout;
+ EFI_PARITY_TYPE OriginalParity;
+ UINT8 OriginalDataBits;
+ EFI_STOP_BITS_TYPE OriginalStopBits;
//
// Preserve the original input values in case
// SerialPortSetAttributes() updates the input/output
// parameters even on error.
//
- OriginalBaudRate = BaudRate;
+ OriginalBaudRate = BaudRate;
OriginalReceiveFifoDepth = ReceiveFifoDepth;
- OriginalTimeout = Timeout;
- OriginalParity = Parity;
- OriginalDataBits = DataBits;
- OriginalStopBits = StopBits;
- Status = SerialPortSetAttributes (&BaudRate, &ReceiveFifoDepth, &Timeout, &Parity, &DataBits, &StopBits);
+ OriginalTimeout = Timeout;
+ OriginalParity = Parity;
+ OriginalDataBits = DataBits;
+ OriginalStopBits = StopBits;
+ Status = SerialPortSetAttributes (&BaudRate, &ReceiveFifoDepth, &Timeout, &Parity, &DataBits, &StopBits);
if (EFI_ERROR (Status)) {
//
// If it is just to set Timeout value and unsupported is returned,
@@ -316,20 +319,21 @@ SerialSetAttributes ( (This->Mode->Timeout != OriginalTimeout) &&
(This->Mode->ReceiveFifoDepth == OriginalReceiveFifoDepth) &&
(This->Mode->BaudRate == OriginalBaudRate) &&
- (This->Mode->DataBits == (UINT32) OriginalDataBits) &&
- (This->Mode->Parity == (UINT32) OriginalParity) &&
- (This->Mode->StopBits == (UINT32) OriginalStopBits)) {
+ (This->Mode->DataBits == (UINT32)OriginalDataBits) &&
+ (This->Mode->Parity == (UINT32)OriginalParity) &&
+ (This->Mode->StopBits == (UINT32)OriginalStopBits))
+ {
//
// Restore to the original input values.
//
- BaudRate = OriginalBaudRate;
+ BaudRate = OriginalBaudRate;
ReceiveFifoDepth = OriginalReceiveFifoDepth;
- Timeout = OriginalTimeout;
- Parity = OriginalParity;
- DataBits = OriginalDataBits;
- StopBits = OriginalStopBits;
- Status = EFI_SUCCESS;
- } else if (Status == EFI_INVALID_PARAMETER || Status == EFI_UNSUPPORTED) {
+ Timeout = OriginalTimeout;
+ Parity = OriginalParity;
+ DataBits = OriginalDataBits;
+ StopBits = OriginalStopBits;
+ Status = EFI_SUCCESS;
+ } else if ((Status == EFI_INVALID_PARAMETER) || (Status == EFI_UNSUPPORTED)) {
return EFI_INVALID_PARAMETER;
} else {
return EFI_DEVICE_ERROR;
@@ -345,21 +349,22 @@ SerialSetAttributes ( //
// Set the Serial I/O mode
//
- This->Mode->ReceiveFifoDepth = ReceiveFifoDepth;
- This->Mode->Timeout = Timeout;
- This->Mode->BaudRate = BaudRate;
- This->Mode->DataBits = (UINT32) DataBits;
- This->Mode->Parity = (UINT32) Parity;
- This->Mode->StopBits = (UINT32) StopBits;
+ This->Mode->ReceiveFifoDepth = ReceiveFifoDepth;
+ This->Mode->Timeout = Timeout;
+ This->Mode->BaudRate = BaudRate;
+ This->Mode->DataBits = (UINT32)DataBits;
+ This->Mode->Parity = (UINT32)Parity;
+ This->Mode->StopBits = (UINT32)StopBits;
//
// Check if the device path has actually changed
//
- if (mSerialDevicePath.Uart.BaudRate == BaudRate &&
- mSerialDevicePath.Uart.DataBits == DataBits &&
- mSerialDevicePath.Uart.Parity == (UINT8) Parity &&
- mSerialDevicePath.Uart.StopBits == (UINT8) StopBits
- ) {
+ if ((mSerialDevicePath.Uart.BaudRate == BaudRate) &&
+ (mSerialDevicePath.Uart.DataBits == DataBits) &&
+ (mSerialDevicePath.Uart.Parity == (UINT8)Parity) &&
+ (mSerialDevicePath.Uart.StopBits == (UINT8)StopBits)
+ )
+ {
gBS->RestoreTPL (Tpl);
return EFI_SUCCESS;
}
@@ -369,8 +374,8 @@ SerialSetAttributes ( //
mSerialDevicePath.Uart.BaudRate = BaudRate;
mSerialDevicePath.Uart.DataBits = DataBits;
- mSerialDevicePath.Uart.Parity = (UINT8) Parity;
- mSerialDevicePath.Uart.StopBits = (UINT8) StopBits;
+ mSerialDevicePath.Uart.Parity = (UINT8)Parity;
+ mSerialDevicePath.Uart.StopBits = (UINT8)StopBits;
Status = gBS->ReinstallProtocolInterface (
mSerialHandle,
@@ -398,8 +403,8 @@ SerialSetAttributes ( EFI_STATUS
EFIAPI
SerialSetControl (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN UINT32 Control
+ IN EFI_SERIAL_IO_PROTOCOL *This,
+ IN UINT32 Control
)
{
return SerialPortSetControl (Control);
@@ -418,8 +423,8 @@ SerialSetControl ( EFI_STATUS
EFIAPI
SerialGetControl (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- OUT UINT32 *Control
+ IN EFI_SERIAL_IO_PROTOCOL *This,
+ OUT UINT32 *Control
)
{
return SerialPortGetControl (Control);
@@ -441,12 +446,12 @@ SerialGetControl ( EFI_STATUS
EFIAPI
SerialWrite (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN OUT UINTN *BufferSize,
- IN VOID *Buffer
+ IN EFI_SERIAL_IO_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ IN VOID *Buffer
)
{
- UINTN Count;
+ UINTN Count;
Count = SerialPortWrite (Buffer, *BufferSize);
@@ -474,13 +479,13 @@ SerialWrite ( EFI_STATUS
EFIAPI
SerialRead (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN OUT UINTN *BufferSize,
- OUT VOID *Buffer
+ IN EFI_SERIAL_IO_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ OUT VOID *Buffer
)
{
- UINTN Count;
- UINTN TimeOut;
+ UINTN Count;
+ UINTN TimeOut;
Count = 0;
@@ -490,15 +495,18 @@ SerialRead ( if (SerialPortPoll ()) {
break;
}
+
gBS->Stall (10);
TimeOut += 10;
}
+
if (TimeOut >= mSerialIoMode.Timeout) {
break;
}
+
SerialPortRead (Buffer, 1);
Count++;
- Buffer = (VOID *) ((UINT8 *) Buffer + 1);
+ Buffer = (VOID *)((UINT8 *)Buffer + 1);
}
if (Count != *BufferSize) {
@@ -522,17 +530,17 @@ SerialRead ( EFI_STATUS
EFIAPI
SerialDxeInitialize (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
)
{
- EFI_STATUS Status;
+ EFI_STATUS Status;
- mSerialIoMode.BaudRate = PcdGet64 (PcdUartDefaultBaudRate);
- mSerialIoMode.DataBits = (UINT32) PcdGet8 (PcdUartDefaultDataBits);
- mSerialIoMode.Parity = (UINT32) PcdGet8 (PcdUartDefaultParity);
- mSerialIoMode.StopBits = (UINT32) PcdGet8 (PcdUartDefaultStopBits);
- mSerialIoMode.ReceiveFifoDepth = PcdGet16 (PcdUartDefaultReceiveFifoDepth);
+ mSerialIoMode.BaudRate = PcdGet64 (PcdUartDefaultBaudRate);
+ mSerialIoMode.DataBits = (UINT32)PcdGet8 (PcdUartDefaultDataBits);
+ mSerialIoMode.Parity = (UINT32)PcdGet8 (PcdUartDefaultParity);
+ mSerialIoMode.StopBits = (UINT32)PcdGet8 (PcdUartDefaultStopBits);
+ mSerialIoMode.ReceiveFifoDepth = PcdGet16 (PcdUartDefaultReceiveFifoDepth);
mSerialDevicePath.Uart.BaudRate = PcdGet64 (PcdUartDefaultBaudRate);
mSerialDevicePath.Uart.DataBits = PcdGet8 (PcdUartDefaultDataBits);
mSerialDevicePath.Uart.Parity = PcdGet8 (PcdUartDefaultParity);
@@ -551,12 +559,13 @@ SerialDxeInitialize ( //
Status = gBS->InstallMultipleProtocolInterfaces (
&mSerialHandle,
- &gEfiSerialIoProtocolGuid, &mSerialIoTemplate,
- &gEfiDevicePathProtocolGuid, &mSerialDevicePath,
+ &gEfiSerialIoProtocolGuid,
+ &mSerialIoTemplate,
+ &gEfiDevicePathProtocolGuid,
+ &mSerialDevicePath,
NULL
);
ASSERT_EFI_ERROR (Status);
return Status;
}
-
|