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authorJonathan A. Kollasch <jakllsch@kollasch.net>2008-08-11 17:19:10 +0000
committerJordan Crouse <jordan.crouse@amd.com>2008-08-11 17:19:10 +0000
commit42a0c80b9babaaf93ca806dd9bae4a4cc5a8936f (patch)
treef77e1037e1ea1f57f265592b6fa576b47ce7af8b /payloads/libpayload/drivers
parent12e27266c3cb9bd1499731a5c52da7ce565d7912 (diff)
Make cursor positioning work by using both halves of the VGA cursor
position register. Have vga_scroll_up() and vga_clear_line() present row/column arguments to the VIDEO() macro in the right order. Signed-off-by: Jonathan A. Kollasch <jakllsch@kollasch.net> Acked-by: Jordan Crouse <jordan.crouse@amd.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3498 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'payloads/libpayload/drivers')
-rw-r--r--payloads/libpayload/drivers/video/vga.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/payloads/libpayload/drivers/video/vga.c b/payloads/libpayload/drivers/video/vga.c
index 388c7b1ee7..540e673389 100644
--- a/payloads/libpayload/drivers/video/vga.c
+++ b/payloads/libpayload/drivers/video/vga.c
@@ -54,7 +54,7 @@ static void vga_get_cursor(unsigned int *x, unsigned int *y, unsigned int *en)
{
unsigned int addr;
addr = ((unsigned int) crtc_read(0x0E)) << 8;
- addr += crtc_read(0x0E);
+ addr += crtc_read(0x0F);
*x = addr % VIDEO_COLS;
*y = addr / VIDEO_COLS;
@@ -68,7 +68,7 @@ static void vga_set_cursor(unsigned int x, unsigned int y)
addr = x + (VIDEO_COLS * y);
crtc_write(addr >> 8, 0x0E);
- crtc_write(addr, 0x0E);
+ crtc_write(addr, 0x0F);
}
static void vga_enable_cursor(int state)
@@ -87,7 +87,7 @@ static void vga_enable_cursor(int state)
static void vga_clear_line(u8 row, u8 ch, u8 attr)
{
int col;
- u16 *ptr = VIDEO(0, row);
+ u16 *ptr = VIDEO(row, 0);
for(col = 0; col < VIDEO_COLS; col++)
ptr[col] = ((attr & 0xFF) << 8) | (ch & 0xFF);
@@ -95,7 +95,7 @@ static void vga_clear_line(u8 row, u8 ch, u8 attr)
static void vga_scroll_up(void)
{
- u16 *src = VIDEO(0,1);
+ u16 *src = VIDEO(1,0);
u16 *dst = VIDEO(0,0);
int i;