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iPod 2nd gen: * Fake battery voltage of 4.00V so rockbox doesn't shutdown (ADC is not yet implemented). * Fix button hold polarity for main rockbox. * Implement backlight inversion (the 1st/2nd gen backlight works in a way that makes the LCD look inverted when active). * Fix default contrast and clean up target tree.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14022 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2007-07-27 12:05:54 +00:00
parent b701322fea
commit 021c0868dd
7 changed files with 86 additions and 18 deletions
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32
firmware/target/arm/ipod/lcd-gray.c
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@ -68,6 +68,12 @@ static inline bool timer_check(int clock_start, int usecs)
#define R_RAM_ADDR_SET 0x11
#define R_RAM_DATA 0x12
#ifdef HAVE_BACKLIGHT_INVERSION
/* The backlight makes the LCD appear negative on the 1st/2nd gen */
static bool lcd_inverted = false;
static bool lcd_backlit = false;
#endif
/* needed for flip */
static int addr_offset;
#if defined(IPOD_MINI) || defined(IPOD_MINI2G)
@ -146,7 +152,9 @@ void lcd_init_device(void)
int lcd_default_contrast(void)
{
#if defined(IPOD_MINI) || defined(IPOD_MINI2G) || defined(IPOD_3G)
#ifdef IPOD_1G2G
return 28;
#elif defined(IPOD_MINI) || defined(IPOD_MINI2G) || defined(IPOD_3G)
return 42;
#else
return 35;
@ -162,6 +170,27 @@ void lcd_set_contrast(int val)
lcd_cmd_and_data(R_CONTRAST_CONTROL, 0x400 | (val + 64));
}
#ifdef HAVE_BACKLIGHT_INVERSION
static void invert_display(void)
{
if (lcd_inverted ^ lcd_backlit)
lcd_cmd_and_data(R_DISPLAY_CONTROL, 0x0023);
else
lcd_cmd_and_data(R_DISPLAY_CONTROL, 0x0009);
}
void lcd_set_invert_display(bool yesno)
{
lcd_inverted = yesno;
invert_display();
}
void lcd_set_backlight_inversion(bool yesno)
{
lcd_backlit = yesno;
invert_display();
}
#else
void lcd_set_invert_display(bool yesno)
{
if (yesno)
@ -169,6 +198,7 @@ void lcd_set_invert_display(bool yesno)
else
lcd_cmd_and_data(R_DISPLAY_CONTROL, 0x0009);
}
#endif
/* turn the display upside down (call lcd_update() afterwards) */
void lcd_set_flip(bool yesno)