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boot/efi: fall back to legacy UART if EFI protocol is not available

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Change-Id: I70ea16aa8842edcb22a3484cf908698c3c5026c8
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5509
Reviewed-by: Alex von Gluck IV <[email protected]>
Tested-by: Commit checker robot <[email protected]>
This commit is contained in:
David Karoly
2022-07-29 17:22:45 +00:00
committed by Alex von Gluck IV
parent c34b7168f4
commit 50913d9a6f
1 changed files with 3 additions and 0 deletions
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src/system/boot/platform/efi/serial.cpp
+3
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@@ -39,7 +39,9 @@ enum serial_register_offsets {
SERIAL_MODEM_STATUS = 6, SERIAL_MODEM_STATUS = 6,
}; };
#if defined(__i386__) || defined(__x86_64__)
static uint16 sSerialBasePort = 0x3f8; static uint16 sSerialBasePort = 0x3f8;
#endif
DebugUART* gUART = NULL; DebugUART* gUART = NULL;
@@ -125,6 +127,7 @@ serial_init(void)
if (status != EFI_SUCCESS || sSerial == NULL) { if (status != EFI_SUCCESS || sSerial == NULL) {
sSerial = NULL; sSerial = NULL;
sSerialUsesEFI = false;
return; return;
} }