diff options
| -rw-r--r-- | drivers/auxdisplay/charlcd.c | 32 |
1 files changed, 1 insertions, 31 deletions
diff --git a/drivers/auxdisplay/charlcd.c b/drivers/auxdisplay/charlcd.c index 281a3259c144..29737c3e18f6 100644 --- a/drivers/auxdisplay/charlcd.c +++ b/drivers/auxdisplay/charlcd.c @@ -25,21 +25,8 @@ /* Keep the backlight on this many seconds for each flash */ #define LCD_BL_TEMPO_PERIOD 4 -/* LCD commands */ -#define LCD_CMD_DISPLAY_CTRL 0x08 /* Display control */ -#define LCD_CMD_DISPLAY_ON 0x04 /* Set display on */ -#define LCD_CMD_CURSOR_ON 0x02 /* Set cursor on */ -#define LCD_CMD_BLINK_ON 0x01 /* Set blink on */ - -#define LCD_CMD_FUNCTION_SET 0x20 /* Set function */ -#define LCD_CMD_DATA_LEN_8BITS 0x10 /* Set data length to 8 bits */ -#define LCD_CMD_TWO_LINES 0x08 /* Set to two display lines */ -#define LCD_CMD_FONT_5X10_DOTS 0x04 /* Set char font to 5x10 dots */ - #define LCD_CMD_SET_CGRAM_ADDR 0x40 /* Set char generator RAM address */ -#define LCD_CMD_SET_DDRAM_ADDR 0x80 /* Set display data RAM address */ - #define LCD_ESCAPE_LEN 24 /* Max chars for LCD escape command */ #define LCD_ESCAPE_CHAR 27 /* Use char 27 for escape command */ @@ -431,24 +418,7 @@ static inline int handle_lcd_special_code(struct charlcd *lcd) if (oldflags == priv->flags) return processed; - /* check whether one of B,C,D flags were changed */ - if ((oldflags ^ priv->flags) & - (LCD_FLAG_B | LCD_FLAG_C | LCD_FLAG_D)) - /* set display mode */ - hdc->write_cmd(hdc, - LCD_CMD_DISPLAY_CTRL | - ((priv->flags & LCD_FLAG_D) ? LCD_CMD_DISPLAY_ON : 0) | - ((priv->flags & LCD_FLAG_C) ? LCD_CMD_CURSOR_ON : 0) | - ((priv->flags & LCD_FLAG_B) ? LCD_CMD_BLINK_ON : 0)); - /* check whether one of F,N flags was changed */ - else if ((oldflags ^ priv->flags) & (LCD_FLAG_F | LCD_FLAG_N)) - hdc->write_cmd(hdc, - LCD_CMD_FUNCTION_SET | - ((hdc->ifwidth == 8) ? LCD_CMD_DATA_LEN_8BITS : 0) | - ((priv->flags & LCD_FLAG_F) ? LCD_CMD_FONT_5X10_DOTS : 0) | - ((priv->flags & LCD_FLAG_N) ? LCD_CMD_TWO_LINES : 0)); - /* check whether L flag was changed */ - else if ((oldflags ^ priv->flags) & LCD_FLAG_L) + if ((oldflags ^ priv->flags) & LCD_FLAG_L) charlcd_backlight(lcd, !!(priv->flags & LCD_FLAG_L)); return processed; |