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m:robe 100 - backlight PWM fading

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17248 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Robert Kukla 2008-04-25 20:06:42 +00:00
parent db73339716
commit b39f9bffde
3 changed files with 27 additions and 9 deletions
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6
firmware/export/config-mrobe100.h
View file

@ -4,8 +4,6 @@
#define TARGET_TREE #define TARGET_TREE
#define OLYMPUS_MROBE_100 1
/* For Rolo and boot loader */ /* For Rolo and boot loader */
#define MODEL_NUMBER 23 #define MODEL_NUMBER 23
#define MODEL_NAME "Olympus m:robe MR-100" #define MODEL_NAME "Olympus m:robe MR-100"
@ -65,7 +63,9 @@
/* Define this for LCD backlight available */ /* Define this for LCD backlight available */
#define HAVE_BACKLIGHT #define HAVE_BACKLIGHT
/* TODO #define HAVE_BACKLIGHT_BRIGHTNESS */
/* We can fade the backlight by using PWM */
#define HAVE_BACKLIGHT_PWM_FADING
/* Main LCD backlight brightness range and defaults */ /* Main LCD backlight brightness range and defaults */
#define MIN_BRIGHTNESS_SETTING 1 #define MIN_BRIGHTNESS_SETTING 1

13
firmware/target/arm/olympus/mrobe-100/backlight-mr100.c
View file

@ -17,19 +17,26 @@
* *
****************************************************************************/ ****************************************************************************/
#include "backlight-target.h" #include "config.h"
#include "system.h" #include "system.h"
#include "backlight-target.h"
#define MIN_BRIGHTNESS 0x80ff08ff #define MIN_BRIGHTNESS 0x80ff08ff
static const int log_brightness[12] = {0,4,8,12,20,28,40,60,88,124,176,255}; static const int log_brightness[12] = {0,4,8,12,20,28,40,60,88,124,176,255};
void _backlight_on(void) /* Returns the current state of the backlight (true=ON, false=OFF). */
bool _backlight_init(void)
{
return (GPO32_ENABLE & 0x1000000) ? true : false;
}
void _backlight_hw_on(void)
{ {
GPO32_ENABLE |= 0x1000000; GPO32_ENABLE |= 0x1000000;
} }
void _backlight_off(void) void _backlight_hw_off(void)
{ {
GPO32_ENABLE &= ~0x1000000; GPO32_ENABLE &= ~0x1000000;
} }

17
firmware/target/arm/olympus/mrobe-100/backlight-target.h
View file

@ -20,9 +20,20 @@
#ifndef BACKLIGHT_TARGET_H #ifndef BACKLIGHT_TARGET_H
#define BACKLIGHT_TARGET_H #define BACKLIGHT_TARGET_H
#define _backlight_init() true bool _backlight_init(void); /* Returns backlight current state (true=ON). */
void _backlight_on(void); void _backlight_hw_on(void);
void _backlight_off(void); void _backlight_hw_off(void);
#ifdef BOOTLOADER
#define _backlight_on() _backlight_hw_on()
#define _backlight_off() _backlight_hw_off()
#else
#define _backlight_on_isr() _backlight_hw_on()
#define _backlight_off_isr() _backlight_hw_off()
#define _backlight_on_normal() _backlight_hw_on()
#define _backlight_off_normal() _backlight_hw_off()
#define _BACKLIGHT_FADE_BOOST
#endif
/* Button lights are controlled by GPIOA_OUTPUT_VAL */ /* Button lights are controlled by GPIOA_OUTPUT_VAL */
#define BUTTONLIGHT_PLAY 0x01 #define BUTTONLIGHT_PLAY 0x01