diff options
| -rw-r--r-- | README | 6 | ||||
| -rw-r--r-- | common/lcd.c | 22 |
2 files changed, 23 insertions, 5 deletions
@@ -1478,6 +1478,12 @@ CBFS (Coreboot Filesystem) support here, since it is cheaper to change data cache settings on a per-section basis. + CONFIG_CONSOLE_SCROLL_LINES + + When the console need to be scrolled, this is the number of + lines to scroll by. It defaults to 1. Increasing this makes + the console jump but can help speed up operation when scrolling + is slow. - Splash Screen Support: CONFIG_SPLASH_SCREEN diff --git a/common/lcd.c b/common/lcd.c index d2a3e9103..301760473 100644 --- a/common/lcd.c +++ b/common/lcd.c @@ -76,6 +76,11 @@ #define CONFIG_LCD_ALIGNMENT PAGE_SIZE #endif +/* By default we scroll by a single line */ +#ifndef CONFIG_CONSOLE_SCROLL_LINES +#define CONFIG_CONSOLE_SCROLL_LINES 1 +#endif + DECLARE_GLOBAL_DATA_PTR; ulong lcd_setmem (ulong addr); @@ -131,12 +136,20 @@ void lcd_set_flush_dcache(int flush) static void console_scrollup(void) { - /* Copy up rows ignoring the first one */ - memcpy(CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE); + const int rows = CONFIG_CONSOLE_SCROLL_LINES; + + /* Copy up rows ignoring those that will be overwritten */ + memcpy(CONSOLE_ROW_FIRST, + lcd_console_address + CONSOLE_ROW_SIZE * rows, + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); + + /* Clear the last rows */ + memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, + COLOR_MASK(lcd_color_bg), + CONSOLE_ROW_SIZE * rows); - /* Clear the last one */ - memset(CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE); lcd_sync(); + console_row -= rows; } /*----------------------------------------------------------------------*/ @@ -165,7 +178,6 @@ static inline void console_newline(void) if (console_row >= CONSOLE_ROWS) { /* Scroll everything up */ console_scrollup(); - --console_row; } else { lcd_sync(); } |