efi: Fill out writechr() implementation

Lots of error strings are printed with writestr(), so the EFI code
requires a working implementation of writechr().

Signed-off-by: Matt Fleming <matt.fleming@intel.com>

3 files changed, 4 insertions, 2 deletions

diff --git a/efi/console.c b/efi/console.c
index 60b04eab..1f09c5a6 100644
--- a/efi/console.c
+++ b/efi/console.c
@@ -5,7 +5,7 @@ extern EFI_GUID GraphicsOutputProtocol;
 
 void writechr(char data)
 {
-	Print(L"Wanted to print something\n");
+	efi_write_char(data, 0);
 }
 
 static inline EFI_STATUS open_protocol(EFI_HANDLE handle, EFI_GUID *protocol,
diff --git a/efi/efi.h b/efi/efi.h
index cab49852..700c0558 100644
--- a/efi/efi.h
+++ b/efi/efi.h
@@ -13,4 +13,6 @@ extern EFI_HANDLE image_handle;
 struct screen_info;
 extern void setup_screen(struct screen_info *);
 
+extern void efi_write_char(uint8_t, uint8_t);
+
 #endif /* _SYSLINUX_EFI_H */
diff --git a/efi/main.c b/efi/main.c
index 07760200..7c9a8219 100644
--- a/efi/main.c
+++ b/efi/main.c
@@ -100,7 +100,7 @@ uint8_t KeepPXE;
 volatile uint32_t __ms_timer = 0;
 volatile uint32_t __jiffies = 0;
 
-static void efi_write_char(uint8_t ch, uint8_t attribute)
+void efi_write_char(uint8_t ch, uint8_t attribute)
 {
 	SIMPLE_TEXT_OUTPUT_INTERFACE *out = ST->ConOut;
 	uint16_t c[2];