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Sansa Clip: backlight brightness is not possible, so remove references to it

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We don't need to mess with CCU_IO register (it's only needed for targets
with a SD slot) so don't keep its value when changing buttonlight

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19139 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2008-11-18 17:40:32 +00:00
parent 69845703bd
commit 73b3f5417f
2 changed files with 0 additions and 24 deletions
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1
firmware/export/config-clip.h
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@ -104,7 +104,6 @@
/* Define this for LCD backlight available */ /* Define this for LCD backlight available */
#define HAVE_BACKLIGHT #define HAVE_BACKLIGHT
//#define HAVE_BACKLIGHT_BRIGHTNESS /* TODO */
/* define this if you have a flash memory storage */ /* define this if you have a flash memory storage */
#define HAVE_FLASH_STORAGE #define HAVE_FLASH_STORAGE

23
firmware/target/arm/as3525/sansa-clip/backlight-clip.c
View file

@ -22,37 +22,14 @@
#include "backlight-target.h" #include "backlight-target.h"
#include "as3525.h" #include "as3525.h"
/* TODO : backlight brightness */
/* XXX : xpd is used for SD/MCI interface
* If interrupts are used to access this interface, they should be
* disabled in _buttonlight_on/off ()
*/
void _buttonlight_on(void) void _buttonlight_on(void)
{ {
int saved_ccu_io;
saved_ccu_io = CCU_IO; /* save XPD setting */
CCU_IO &= ~(3<<2); /* setup xpd as GPIO */
GPIOD_DIR |= (1<<7); GPIOD_DIR |= (1<<7);
GPIOD_PIN(7) = (1<<7); /* set pin d7 high */ GPIOD_PIN(7) = (1<<7); /* set pin d7 high */
CCU_IO = saved_ccu_io; /* restore the previous XPD setting */
} }
void _buttonlight_off(void) void _buttonlight_off(void)
{ {
int saved_ccu_io;
saved_ccu_io = CCU_IO; /* save XPD setting */
CCU_IO &= ~(3<<2); /* setup xpd as GPIO */
GPIOD_DIR |= (1<<7); GPIOD_DIR |= (1<<7);
GPIOD_PIN(7) = 0; /* set pin d7 low */ GPIOD_PIN(7) = 0; /* set pin d7 low */
CCU_IO = saved_ccu_io; /* restore the previous XPD setting */
} }