目前关机充电PWRKEY实现长按开机和短按亮屏功能,灭屏是根据BL_SWITCH_TIMEOUTS时间,自动灭屏的;如果需要实现PWRKEY主动灭屏,请按照如下方法修改:
alps/mediatek/platform/mt6577/uboot/mt6577_bat.c 函数mt65xx_bat_init
1、修改:
if (mt6577_detect_key(BACKLIGHT_KEY) || (!mt6577_detect_powerkey() && press_pwrkey_count > 0))
修改为:if (mt6577_detect_key(BACKLIGHT_KEY))
2、添加:
在if (mt6577_detect_key(BACKLIGHT_KEY))
{
.......
}
后面添加如下语句:
// add start
if(!mt6577_detect_powerkey() && press_pwrkey_count > 0)
{
if(g_bl_on)
{
bl_switch = false;
bl_switch_timer = BL_SWITCH_TIMEOUT;
g_bl_on = true;
printf("[BATTERY] ready to mt65xx_backlight_off\r\n");
}
else
{
bl_switch = false;
bl_switch_timer = 0;
g_bl_on = true;
printf("[BATTERY] mt65xx_backlight_on\r\n");
}
}
// add end