[SeaBIOS] [PATCH 6/7] sercon: add compile time option
Gerd Hoffmann
kraxel at redhat.com
Wed Sep 28 11:07:19 CEST 2016
Signed-off-by: Gerd Hoffmann <kraxel at redhat.com>
---
src/Kconfig | 5 +++++
src/sercon.c | 10 ++++++++++
2 files changed, 15 insertions(+)
diff --git a/src/Kconfig b/src/Kconfig
index e767be1..35e7433 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -300,6 +300,11 @@ menu "Hardware support"
default y
help
Support serial ports. This also enables int 14 serial port calls.
+ config SERCON
+ bool "Serial console"
+ default y
+ help
+ Support redirecting vga output to the serial console.
config LPT
bool "Parallel port"
default y
diff --git a/src/sercon.c b/src/sercon.c
index d9b6143..c204af3 100644
--- a/src/sercon.c
+++ b/src/sercon.c
@@ -456,6 +456,8 @@ static void sercon_10XX(struct bregs *regs)
void VISIBLE16
sercon_10(struct bregs *regs)
{
+ if (!CONFIG_SERCON)
+ return;
if (!GET_LOW(sercon_port))
return;
@@ -477,6 +479,8 @@ sercon_10(struct bregs *regs)
void VISIBLE16
sercon_10_splitmode(struct bregs *regs)
{
+ if (!CONFIG_SERCON)
+ return;
if (!GET_LOW(sercon_port))
return;
@@ -499,6 +503,9 @@ sercon_10_splitmode(struct bregs *regs)
void sercon_enable(void)
{
+ if (!CONFIG_SERCON)
+ return;
+
struct segoff_s seabios, vgabios;
u16 addr = PORT_SERIAL1;
@@ -596,6 +603,9 @@ static int findseq(void)
void
sercon_check_event(void)
{
+ if (!CONFIG_SERCON)
+ return;
+
u16 addr = GET_LOW(sercon_port);
u16 keycode;
u8 byte, count = 0;
--
1.8.3.1
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