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Got rid of backlight wink between bootloader and firmware start by removing redundant lcd reset

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10751 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2006-08-26 01:52:05 +00:00
parent 93bbd44ccc
commit 7a75aad26e
2 changed files with 18 additions and 4 deletions
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13
firmware/target/coldfire/iaudio/x5/lcd-x5.c
View file

@ -341,12 +341,16 @@ static void lcd_display_off(void)
void lcd_init_device(void) void lcd_init_device(void)
{ {
/* Reset settings */ /* Reset settings */
power_on = false;
display_on = false;
y_offset = 0; y_offset = 0;
roll_offset = 0; roll_offset = 0;
disp_control_rev = 0x0004; disp_control_rev = 0x0004;
#ifdef BOOTLOADER
/* Initial boot requires setting up chip registers but a full reset is
not needed again. */
power_on = false;
display_on = false;
/* LCD Reset */ /* LCD Reset */
and_l(~0x00000010, &GPIO1_OUT); and_l(~0x00000010, &GPIO1_OUT);
or_l(0x00000010, &GPIO1_ENABLE); or_l(0x00000010, &GPIO1_ENABLE);
@ -357,6 +361,11 @@ void lcd_init_device(void)
sleep(HZ/100); sleep(HZ/100);
lcd_display_on(); lcd_display_on();
#else
/* Power and display already ON */
power_on = true;
display_on = true;
#endif
} }
void lcd_enable(bool on) void lcd_enable(bool on)

9
firmware/target/coldfire/iaudio/x5/pcf50606-x5.c
View file

@ -172,9 +172,14 @@ void pcf50606_init(void)
/* D305A datasheet says PWM clock frequency should be 400Hz - 2000Hz so /* D305A datasheet says PWM clock frequency should be 400Hz - 2000Hz so
* I changed it from 7kHz to 512Hz. The lower frequency looks the same. * I changed it from 7kHz to 512Hz. The lower frequency looks the same.
* GPO1 is also inverted so that display brightness increases with PWM * GPO1 is also inverted so that display brightness increases with PWM
* setting which also lets the X5 share the H300's * cycle.
* set_backlight_brightness code.
*/ */
pcf50606_write(0x35, 0x11); /* Backlight PWM = 512Hz, 8/16, Active */ pcf50606_write(0x35, 0x11); /* Backlight PWM = 512Hz, 8/16, Active */
#ifdef BOOTLOADER
/* Backlight starts OFF in bootloader */
pcf50606_write(0x38, 0x80); /* Backlight OFF, GPO1INV=1, GPO1ACT=011 */ pcf50606_write(0x38, 0x80); /* Backlight OFF, GPO1INV=1, GPO1ACT=011 */
#else
/* Keep backlight on when changing to firmware */
pcf50606_write(0x38, 0xb0); /* Backlight ON, GPO1INV=1, GPO1ACT=011 */
#endif
} }