len0rd/rockbox
1
0
Fork 1
mirror of https://github.com/Rockbox/rockbox.git synced 2025-11-19 01:52:35 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

Greyscale iPods: Fix the default contrast in the bootloader and the core before settings are loaded. Especially important on 1st..3rd Gen as we're setting up the LCD controller quite a bit different than the OF on those.

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18290 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2008-08-15 19:19:46 +00:00
parent 9f8654c5e2
commit f0dcb34e82
1 changed files with 12 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

21
firmware/target/arm/ipod/lcd-gray.c
View file

@ -70,6 +70,16 @@ static void invert_display(void);
#define CONTRAST_REG_H 0x400
#if defined(IPOD_1G2G)
#define DEFAULT_CONTRAST 45
#elif defined(IPOD_3G)
#define DEFAULT_CONTRAST 55
#elif defined(IPOD_MINI) || defined(IPOD_MINI2G)
#define DEFAULT_CONTRAST 42
#elif defined(IPOD_4G)
#define DEFAULT_CONTRAST 35
#endif
/* needed for flip */
static int addr_offset;
#if defined(IPOD_MINI) || defined(IPOD_MINI2G)
@ -135,6 +145,7 @@ void lcd_init_device(void)
/* C waveform, no EOR, 9 lines inversion */
lcd_cmd_and_data(R_POWER_CONTROL, POWER_REG_H | 0xc);
lcd_cmd_and_data(R_DISPLAY_CONTROL, 0x0019);
lcd_set_contrast(DEFAULT_CONTRAST);
#ifdef HAVE_BACKLIGHT_INVERSION
invert_display();
#endif
@ -146,15 +157,7 @@ void lcd_init_device(void)
int lcd_default_contrast(void)
{
#if defined(IPOD_1G2G)
return 45;
#elif defined(IPOD_3G)
return 55;
#elif defined(IPOD_MINI) || defined(IPOD_MINI2G)
return 42;
#elif defined(IPOD_4G)
return 35;
#endif
return DEFAULT_CONTRAST;
}
/* Rockbox stores the contrast as 0..63 - we add 64 to it */