From 067262dbf09d63fb645d1c2e67d225325b6854c9 Mon Sep 17 00:00:00 2001
From: Björn Stenberg <bjorn@haxx.se>
Date: Wed, 9 Jul 2003 23:07:49 +0000
Subject: Moved lcd default contrast knowledge from settings.c to lcd driver.
 Now lcd_init sets default contrast until settings are read.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3824 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/drivers/lcd-player.c   |  7 +++++++
 firmware/drivers/lcd-recorder.c | 41 ++++++++++++++++++++++++-----------------
 firmware/export/lcd.h           |  1 +
 3 files changed, 32 insertions(+), 17 deletions(-)

(limited to 'firmware')

diff --git a/firmware/drivers/lcd-player.c b/firmware/drivers/lcd-player.c
index 6f58f8ec1a..bbb157a94f 100644
--- a/firmware/drivers/lcd-player.c
+++ b/firmware/drivers/lcd-player.c
@@ -278,6 +278,11 @@ bool lcdx_putc(int x, int y, unsigned short ch)
     return false;
 }
 
+int lcd_default_contrast(void)
+{
+    return 30;
+}
+
 void lcd_clear_display(void)
 {
     int i;
@@ -497,6 +502,8 @@ void lcd_init (void)
         pattern_size=3; /* Last pattern, 3 for old LCD, 7 for new LCD */
     }
     
+    lcd_set_contrast(lcd_default_contrast());
+
     create_thread(scroll_thread, scroll_stack,
                   sizeof(scroll_stack), scroll_name);
 }
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();
diff --git a/firmware/export/lcd.h b/firmware/export/lcd.h
index 0818f9d92e..3f3ea972c3 100644
--- a/firmware/export/lcd.h
+++ b/firmware/export/lcd.h
@@ -44,6 +44,7 @@ extern void lcd_scroll_speed( int speed );
 extern void lcd_scroll_delay( int ms );
 extern void lcd_set_contrast(int val);
 extern void lcd_write( bool command, int byte );
+extern int  lcd_default_contrast(void);
 
 #if defined(SIMULATOR) || defined(HAVE_LCD_BITMAP)
 extern void lcd_update(void);
-- 
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