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path: root/firmware/drivers/lcd-recorder.c
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Diffstat (limited to 'firmware/drivers/lcd-recorder.c')
-rw-r--r--firmware/drivers/lcd-recorder.c41
1 files changed, 24 insertions, 17 deletions
diff --git a/firmware/drivers/lcd-recorder.c b/firmware/drivers/lcd-recorder.c
index 00b4ed78b2..597c7d246a 100644
--- a/firmware/drivers/lcd-recorder.c
+++ b/firmware/drivers/lcd-recorder.c
@@ -29,6 +29,7 @@
#include "debug.h"
#include "system.h"
#include "font.h"
+#include "hwcompat.h"
/*** definitions ***/
@@ -113,6 +114,15 @@ static unsigned char zeros[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
static unsigned char ones[8] = { 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff};
+int lcd_default_contrast(void)
+{
+#ifdef SIMULATOR
+ return 30;
+#else
+ return (read_hw_mask() & LCD_CONTRAST_BIAS) ? 31 : 49;
+#endif
+}
+
#ifdef SIMULATOR
void lcd_init(void)
@@ -132,23 +142,20 @@ void lcd_init (void)
PBCR2 &= 0xff00; /* MD = 00 */
PBIOR |= 0x000f; /* IOR = 1 */
- /* inits like the original firmware */
- lcd_write(true, LCD_SOFTWARE_RESET);
- lcd_write(true, LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO + 4);
- lcd_write(true, LCD_SET_1OVER4_BIAS_RATIO + 0); /* force 1/4 bias: 0 */
- lcd_write(true, LCD_SET_POWER_CONTROL_REGISTER + 7); /* power control register: op-amp=1, regulator=1, booster=1 */
- lcd_write(true, LCD_SET_DISPLAY_ON);
- lcd_write(true, LCD_SET_NORMAL_DISPLAY);
- lcd_write(true, LCD_SET_SEGMENT_REMAP + 1); /* mirror horizontal: 1 */
- lcd_write(true, LCD_SET_COM_OUTPUT_SCAN_DIRECTION + 8); /* mirror vertical: 1 */
- lcd_write(true, LCD_SET_DISPLAY_START_LINE + 0);
-#if 0 /* done later, depending on h/w mask bit and settings */
- lcd_write(true, LCD_SET_CONTRAST_CONTROL_REGISTER);
- lcd_write(true, 0xF1); /* contrast set to 49/64 */
-#endif
- lcd_write(true, LCD_SET_PAGE_ADDRESS);
- lcd_write(true, LCD_SET_LOWER_COLUMN_ADDRESS + 0);
- lcd_write(true, LCD_SET_HIGHER_COLUMN_ADDRESS + 0);
+ /* inits like the original firmware */
+ lcd_write(true, LCD_SOFTWARE_RESET);
+ lcd_write(true, LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO + 4);
+ lcd_write(true, LCD_SET_1OVER4_BIAS_RATIO + 0); /* force 1/4 bias: 0 */
+ lcd_write(true, LCD_SET_POWER_CONTROL_REGISTER + 7); /* power control register: op-amp=1, regulator=1, booster=1 */
+ lcd_write(true, LCD_SET_DISPLAY_ON);
+ lcd_write(true, LCD_SET_NORMAL_DISPLAY);
+ lcd_write(true, LCD_SET_SEGMENT_REMAP + 1); /* mirror horizontal: 1 */
+ lcd_write(true, LCD_SET_COM_OUTPUT_SCAN_DIRECTION + 8); /* mirror vertical: 1 */
+ lcd_write(true, LCD_SET_DISPLAY_START_LINE + 0);
+ lcd_set_contrast(lcd_default_contrast());
+ lcd_write(true, LCD_SET_PAGE_ADDRESS);
+ lcd_write(true, LCD_SET_LOWER_COLUMN_ADDRESS + 0);
+ lcd_write(true, LCD_SET_HIGHER_COLUMN_ADDRESS + 0);
lcd_clear_display();
lcd_update();