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HiFiMAN: Implement lcd powersave mode.

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Change-Id: I0a22b436549047ac0c2f9e2c203cbe8b31cfc1cd
This commit is contained in:
Andrew Ryabinin 2012-01-15 17:25:31 +04:00
parent cac98a5ebf
commit 7b99318710
4 changed files with 49 additions and 9 deletions
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2
firmware/export/config/hifimanhm60x.h
View file

@ -75,7 +75,7 @@
/* #define HAVE_LCD_SHUTDOWN */
/* Define this if your LCD can be enabled/disabled */
/* #define HAVE_LCD_ENABLE */
#define HAVE_LCD_ENABLE
/* Define this if your LCD can be put to sleep. HAVE_LCD_ENABLE
should be defined as well. */

2
firmware/export/config/hifimanhm801.h
View file

@ -72,7 +72,7 @@
/* #define HAVE_LCD_SHUTDOWN */
/* Define this if your LCD can be enabled/disabled */
/* #define HAVE_LCD_ENABLE */
#define HAVE_LCD_ENABLE
/* Define this if your LCD can be put to sleep. HAVE_LCD_ENABLE
should be defined as well. */

7
firmware/target/arm/rk27xx/backlight-rk27xx.c
View file

@ -24,6 +24,7 @@
#include "backlight.h"
#include "backlight-target.h"
#include "system.h"
#include "lcd.h"
static int brightness = DEFAULT_BRIGHTNESS_SETTING;
@ -76,6 +77,9 @@ bool _backlight_init(void)
void _backlight_on(void)
{
#ifdef HAVE_LCD_ENABLE
lcd_enable(true);
#endif
/* enable PWM clock */
SCU_CLKCFG &= ~(1<<29);
@ -96,6 +100,9 @@ void _backlight_off(void)
/* disable PWM clock */
SCU_CLKCFG |= (1<<29);
#ifdef HAVE_LCD_ENABLE
lcd_enable(false);
#endif
}
void _backlight_set_brightness(int val)

47
firmware/target/arm/rk27xx/lcd-hifiman.c
View file

@ -27,12 +27,7 @@
#include "cpu.h"
#include "lcdif-rk27xx.h"
/* TODO */
static void lcd_sleep(unsigned int sleep)
{
(void)sleep;
}
static bool display_on = false;
void lcd_display_init()
{
@ -110,9 +105,47 @@ void lcd_display_init()
for(y=0; y<LCD_HEIGHT; y++)
lcd_data(0x00);
lcd_sleep(0);
display_on = true;
}
void lcd_enable (bool on)
{
if (on)
{
lcd_write_reg(0x18, 0x44);
lcd_write_reg(0x21, 0x01);
lcd_write_reg(0x01, 0x00);
lcd_write_reg(0x1C, 0x03);
lcd_write_reg(0x19, 0x06);
udelay(5);
lcd_write_reg(0x26, 0x84);
udelay(40);
lcd_write_reg(0x26, 0xB8);
udelay(40);
lcd_write_reg(0x26, 0xBC);
}
else
{
lcd_write_reg(0x26, 0xB8);
udelay(40);
lcd_write_reg(0x19, 0x01);
udelay(40);
lcd_write_reg(0x26, 0xA4);
udelay(40);
lcd_write_reg(0x26, 0x84);
udelay(40);
lcd_write_reg(0x1C, 0x00);
lcd_write_reg(0x01, 0x02);
lcd_write_reg(0x21, 0x00);
}
display_on = on;
}
bool lcd_active()
{
return display_on;
}
void lcd_update_rect(int x, int y, int width, int height)