From 42a0c80b9babaaf93ca806dd9bae4a4cc5a8936f Mon Sep 17 00:00:00 2001 From: "Jonathan A. Kollasch" Date: Mon, 11 Aug 2008 17:19:10 +0000 Subject: [PATCH] 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 Acked-by: Jordan Crouse git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3498 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- payloads/libpayload/drivers/video/vga.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/payloads/libpayload/drivers/video/vga.c b/payloads/libpayload/drivers/video/vga.c index 388c7b1ee..540e67338 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; -- 2.25.1