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Mark serial port as fully initialized and always check that before printing anything to the serial console

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This commit is contained in:
Rafal Kupiec
2022-08-10 17:56:41 +02:00
parent a9171bd512
commit e6aaa1a83c
3 changed files with 25 additions and 11 deletions
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7
sdk/xtklib/hl/cport.c
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@@ -212,6 +212,7 @@ HlInitializeComPort(IN OUT PCPPORT Port,
{
PUCHAR Address;
UCHAR Byte = 0;
USHORT Flags = 0;
ULONG Mode;
/* Check if serial port is set */
@@ -233,7 +234,7 @@ HlInitializeComPort(IN OUT PCPPORT Port,
{
/* Use default baud (clock) rate if not set */
BaudRate = COMPORT_CLOCK_RATE;
Port->Flags = COMPORT_FLAG_DBR;
Flags |= COMPORT_FLAG_DBR;
}
/* Store COM pointer */
@@ -288,10 +289,14 @@ HlInitializeComPort(IN OUT PCPPORT Port,
return STATUS_IO_DEVICE_ERROR;
}
/* Mark port as fully initialized */
Flags |= COMPORT_FLAG_INIT;
/* Disable loopback mode and use port normally */
HlIoPortOutByte(PtrToUshort(Address + (ULONG)COMPORT_REG_MCR), COMPORT_MCR_NOM);
Port->Address = Address;
Port->Baud = BaudRate;
Port->Flags = Flags;
/* Return success */
return STATUS_SUCCESS;