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Simplify lcd invert

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26353 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Chicoine 2010-05-28 12:19:26 +00:00
parent bdb6bf5535
commit 0ae59df3fa
1 changed files with 3 additions and 11 deletions
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14
firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c
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@ -79,11 +79,6 @@ static bool display_on = false; /* is the display turned on? */
#define R_ENTRY_MODE_VERT 0x7038
#define R_ENTRY_MODE_SOLID_VERT 0x1038
/* Reverse Flag */
#define R_DISP_CONTROL_NORMAL 0x0004
#define R_DISP_CONTROL_REV 0x0000
static unsigned short r_disp_control_rev = R_DISP_CONTROL_NORMAL;
static inline void lcd_delay(int x)
{
do {
@ -148,12 +143,9 @@ void lcd_set_contrast(int val)
void lcd_set_invert_display(bool yesno)
{
r_disp_control_rev = yesno ? R_DISP_CONTROL_REV :
R_DISP_CONTROL_NORMAL;
if (display_on)
{
lcd_write_reg(R_DISP_CONTROL1, 0x0033 | r_disp_control_rev);
lcd_write_reg(R_DISP_CONTROL1, yesno ? 0x33 : 0x37);
}
}
@ -195,7 +187,7 @@ static void _display_on(void)
lcd_write_reg(R_COMPARE_REG2, 0);
/* GON = 0, DTE = 0, D1-0 = 00b */
lcd_write_reg(R_DISP_CONTROL1, 0x0000 | r_disp_control_rev);
lcd_write_reg(R_DISP_CONTROL1, 0x0000);
/* Front porch lines: 2; Back porch lines: 2; */
lcd_write_reg(R_DISP_CONTROL2, 0x0203);
@ -269,7 +261,7 @@ static void _display_on(void)
lcd_write_reg(R_1ST_SCR_DRV_POS, (LCD_HEIGHT-1) << 8);
lcd_write_reg(R_2ND_SCR_DRV_POS, (LCD_HEIGHT-1) << 8);
lcd_write_reg(R_DISP_CONTROL1, 0x0033 | r_disp_control_rev);
lcd_write_reg(R_DISP_CONTROL1, 0x0037);
display_on = true; /* must be done before calling lcd_update() */
lcd_update();