MTK平台在通话时降低充电电流
整体逻辑：通话时，通话进程下发一个标志位，然后内核的充电进程读取该标志位，标志位为1时降低电流到450ma，标志位为0时恢复到800ma。
注意点：4种状态判断，1、[通话，插充电器]----------0ma转成450ma
2、[非通话，插充电器]--------0ma转成800ma
3、[充电，拨打电话]----------800ma转成450ma
4、[充电，挂断电话]----------450ma转成800ma
代码中需要的地方
1、通话下发标志位需要添加的地方
# modified: device/mediatek/common/sepolicy/file.te # modified: device/mediatek/common/sepolicy/file_contexts # modified: device/mediatek/common/sepolicy/system_server.te # modified: device/mediatek/common/sepolicy/file.te # modified: device/mediatek/common/sepolicy/file_contexts # modified: device/mediatek/common/sepolicy/system_server.te
diff --git a/device/mediatek/common/sepolicy/file.te b/device/mediatek/common/sepolicy/file.te index c9b7a91..f13ebba 100644 --- a/device/mediatek/common/sepolicy/file.te +++ b/device/mediatek/common/sepolicy/file.te @@ -16,7 +16,7 @@ type radvd_data_file, file_type, data_file_type; # Operation : Migration # Purpose : SF rtt dump type sf_rtt_file, file_type, data_file_type; - +type sys_charging_callstate_file, fs_type, sysfs_type; type dfo_socket, file_type; type rild2_socket, file_type; type rild3_socket, file_type;
diff --git a/device/mediatek/common/sepolicy/file_contexts b/device/mediatek/common/sepolicy/file_contexts index 3a4fdd1..387abe8 100644 --- a/device/mediatek/common/sepolicy/file_contexts +++ b/device/mediatek/common/sepolicy/file_contexts @@ -295,7 +295,7 @@ /sys/devices/platform/msensor/driver(/.*)? u:object_r:sysfs_msensor_file:s0 /sys/bus/platform/drivers/mtk-kpd(/.*)? u:object_r:sysfs_keypad_file:s0 /sys/power/vcorefs/pwr_ctrl -- u:object_r:sysfs_vcorefs_pwrctrl:s0 - +/sys/device/platform/battery/Charging_CallState u:object_r:sys_charging_callstate_file:s0 ############################# # System files
diff --git a/device/mediatek/common/sepolicy/system_server.te b/device/mediatek/common/sepolicy/system_server.te
index e2b61f5..e2636ee 100755
--- a/device/mediatek/common/sepolicy/system_server.te
+++ b/device/mediatek/common/sepolicy/system_server.te
@@ -42,7 +42,7 @@ allow system_server mnld_data_file:sock_file create_file_perms;
allow system_server mnld_data_file:sock_file rw_file_perms;
allow system_server mnld_data_file:dir create_file_perms;
allow system_server mnld_data_file:dir rw_dir_perms;
-
+allow system_server sys_charging_callstate_file:file {open write getattr};
# Date : WK14.37
# Operation : Migration
# Purpose : for idling on homescreen
diff --git a/packages/services/Telecomm/src/com/android/server/telecom/CallAudioManager.java b/packages/services/Telecomm/src/com/android/serv
index 20e9cd4..8cc4a39 100644
--- a/packages/services/Telecomm/src/com/android/server/telecom/CallAudioManager.java
+++ b/packages/services/Telecomm/src/com/android/server/telecom/CallAudioManager.java
@@ -904,6 +904,17 @@ final class CallAudioManager extends CallsManagerListenerBase
// Owner : yucong Xiong
// Set kpd as wake up source
// so that kpd can wak up Sysytem by Vol. key when phone suspend when talking
+ String callStateFilePath3 = String.format("/sys/devices/platform/battery/Charging_CallState");
+ try {
+ int call_existed = (value == 2) ? 1 : 0;
+ String state3 = String.valueOf(call_existed);
+ FileWriter fw3 = new FileWriter(callStateFilePath3);
+ fw3.write(state3);
+ fw3.close();
+ Log.v(this, "Call state for charging battery (call_existed =1, else = 0) is %s" + state3);
+ }catch(Exception e){
+ Log.v(this, "", e);
+ }
String callStateFilePath2 = String.format("/sys/bus/platform/mtk-kpd/driver/kpd_call_state");
try {
String state2 = String.valueOf(value);
@@ -914,6 +925,7 @@ final class CallAudioManager extends CallsManagerListenerBase
} catch (Exception e) {
Log.v(this, "" , e);
}
+
}
}).start();
}
2、降低背光
# modified: frameworks/base/core/res/res/values/config.xml # modified: frameworks/base/packages/SettingsProvider/res/values/defaults.xml
diff --git a/frameworks/base/core/res/res/values/config.xml b/frameworks/base/core/res/res/values/config.xml
index e6dfbd5..060371b 100644
--- a/frameworks/base/core/res/res/values/config.xml
+++ b/frameworks/base/core/res/res/values/config.xml
@@ -869,11 +869,11 @@
<!-- Maximum screen brightness allowed by the power manager.
The user is forbidden from setting the brightness above this level. -->
- <integer name="config_screenBrightnessSettingMaximum">255</integer>
+ <integer name="config_screenBrightnessSettingMaximum">125</integer>
<!-- Default screen brightness setting.
Must be in the range specified by minimum and maximum. -->
- <integer name="config_screenBrightnessSettingDefault">195</integer>
+ <integer name="config_screenBrightnessSettingDefault">95</integer>
<!-- Screen brightness used to dim the screen while dozing in a very low power state.
May be less than the minimum allowed brightness setting
diff --git a/frameworks/base/packages/SettingsProvider/res/values/defaults.xml b/frameworks/base/packages/SettingsProvider/res/values/defaults
index 4fa499e..4669f2f 100644
--- a/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
+++ b/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
@@ -32,7 +32,7 @@
<!-- Modified by menglingqiang for [platform] default accelerometer rotation-->
<bool name="def_accelerometer_rotation">false</bool>
<!-- Default screen brightness, from 0 to 255. 102 is 40%. -->
- <integer name="def_screen_brightness">195</integer>
+ <integer name="def_screen_brightness">95</integer>
<bool name="def_screen_brightness_automatic_mode">false</bool>
<fraction name="def_window_animation_scale">100%</fraction>
<fraction name="def_window_transition_scale">100%</fraction>
3、降低充电电流
# modified: kernel-3.10/drivers/power/mediatek/al712_32bit_battery_common.c # modified: kernel-3.10/drivers/power/mediatek/linear_charging.c
diff --git a/kernel-3.10/drivers/power/mediatek/al712_32bit_battery_common.c b/kernel-3.10/drivers/power/mediatek/al712_32bit_battery_common.c
index 5216fb1..344e3da 100644
--- a/kernel-3.10/drivers/power/mediatek/al712_32bit_battery_common.c
+++ b/kernel-3.10/drivers/power/mediatek/al712_32bit_battery_common.c
@@ -2770,7 +2770,7 @@ void mt_battery_notify_check(void)
//mark by chenlei2
//mt_battery_notify_VBatTemp_check();
- //mt_battery_notify_VBatTemp_check();
+ mt_battery_notify_VBatTemp_check();
mt_battery_notify_ICharging_check();
@@ -3105,7 +3105,7 @@ void do_chrdet_int_task(void)
}
-
+unsigned int flag_call = 1;
void BAT_thread(void)
{
static kal_bool battery_meter_initilized = KAL_FALSE;
@@ -3122,9 +3122,32 @@ void BAT_thread(void)
}
mt_battery_thermal_check();
mt_battery_notify_check();
- if(upmu_is_chr_det() == KAL_TRUE) //only for charge by chenlei2
+ if(upmu_is_chr_det() == KAL_TRUE) //only for charge by chenlei2
{
- set_lenovo_charger_status();//add by chenlei2
+ if(g_call_state == 1)
+ {
+ if(flag_call == 1)
+ {
+ set_bat_charging_current_limit(450);
+ flag_call=2;
+ }
+ }
+ else{
+ if(flag_call == 2)
+ {
+ flag_call = 1;
+ set_bat_charging_current_limit(800);
+ }
+ }
+ //set_lenovo_charger_status();//add by chenlei2
+ }else{
+ if(g_call_state == 1)
+ {
+ flag_call=1;
+ }
+ else{
+ flag_call = 2;
+ }
}
if (BMT_status.charger_exist == KAL_TRUE) {
mt_battery_CheckBatteryStatus();
diff --git a/kernel-3.10/drivers/power/mediatek/linear_charging.c b/kernel-3.10/drivers/power/mediatek/linear_charging.c
index 94fc30c..e712772 100644
--- a/kernel-3.10/drivers/power/mediatek/linear_charging.c
+++ b/kernel-3.10/drivers/power/mediatek/linear_charging.c
@@ -811,7 +811,9 @@ void select_charging_curret(void)
} else if (BMT_status.charger_type == NONSTANDARD_CHARGER) {
g_temp_CC_value = NON_STD_AC_CHARGER_CURRENT;
} else if (BMT_status.charger_type == STANDARD_CHARGER) {
+ if(g_call_state == 0)
g_temp_CC_value = AC_CHARGER_CURRENT;
+ else g_temp_CC_value = CHARGE_CURRENT_450_00_MA;
#if defined(CONFIG_MTK_PUMP_EXPRESS_SUPPORT)
if(is_ta_connect == KAL_TRUE && ta_vchr_tuning == KAL_TRUE)
g_temp_CC_value = CHARGE_CURRENT_1500_00_MA;
@@ -1074,11 +1076,11 @@ PMU_STATUS BAT_PreChargeModeAction(void)
// no disable charging
#else
{
- //kal_bool charging_enable = KAL_FALSE;
+ kal_bool charging_enable = KAL_FALSE;
/*Charging 9s and discharging 1s : start */
- //battery_charging_control(CHARGING_CMD_ENABLE, &charging_enable);
- //msleep(1000);
+ battery_charging_control(CHARGING_CMD_ENABLE, &charging_enable);
+ msleep(4000);//充6停4
}
#endif
@@ -1110,11 +1112,11 @@ PMU_STATUS BAT_ConstantCurrentModeAction(void)
// no disable charging#else
#else
{
- //kal_bool charging_enable = KAL_FALSE;
+ kal_bool charging_enable = KAL_FALSE;
/* Charging 9s and discharging 1s : start */
- //battery_charging_control(CHARGING_CMD_ENABLE, &charging_enable);
- //msleep(1000);
+ battery_charging_control(CHARGING_CMD_ENABLE, &charging_enable);
+ msleep(4000);//充6停4
}
#endif
4、修改版本号
adbremount adbpull /system/build.prop 修改build.prop中的版本号和时间点 adbpush build.prop /system/build.prop