EeePc porting - Instructions for last codebase

[Luca Belluccini]

Compile a kernel image disabling pmem, enabling vesa, enabling
hardware stuff...
Use the old eee_701 target files (replace the compiled kernel).
Modify:
- system/core/mountd/Android.mk (add an if to make them compile for
x86 arch or specific target)
- external/e2fsprogs/Android.mk (include them for x86 arch - they're
necessary for installer)
- vendor/asus/eee_701/init.rc (add ro.HOME_APP_ADJ 4 and
ro.HOME_APP_MEM 4096)
- frameworks/base/preloaded-classes (comment out some ATM non existent
classes PhoneWindow and derived)
- frameworks/base/services/jni/com_android_server_BatteryService.cpp
(added some stuff for faking battery status)

@@ -15,6 +15,7 @@
*/

#define LOG_TAG "BatteryService"
+#define eee_701 1

#include "JNIHelp.h"
#include "jni.h"
@@ -79,6 +80,7 @@

static jint getBatteryStatus(const char* status)
{
+ if(eee_701) return gConstants.statusUnknown;
switch (status[0]) {
case 'C': return gConstants.statusCharging; //
Charging
case 'D': return gConstants.statusDischarging; //
Discharging
@@ -95,6 +97,7 @@

static jint getBatteryHealth(const char* status)
{
+ if(eee_701) return gConstants.healthUnknown;
switch (status[0]) {
case 'D': return gConstants.healthDead; // Dead
case 'G': return gConstants.healthGood; // Good
@@ -126,6 +129,7 @@

static int readFromFile(const char* path, char* buf, size_t size)
{
+ if(eee_701) return size;
int fd = open(path, O_RDONLY, 0);
if (fd == -1) {
LOGE("Could not open '%s'", path);
@@ -151,11 +155,13 @@
char buf[SIZE];

jboolean value = false;
+
if (readFromFile(path, buf, SIZE) > 0) {
if (buf[0] == '1') {
value = true;
}
}
+ if (eee_701) value = true;
env->SetBooleanField(obj, fieldID, value);
}

@@ -168,6 +174,7 @@
if (readFromFile(path, buf, SIZE) > 0) {
value = atoi(buf);
}
+ if (eee_701) value = 1;
env->SetIntField(obj, fieldID, value);
}


- vendor/asus/eee_701/BoardConfig.mk (append vga=788 to
BOARD_KERNEL_CMDLINE)
Make install_img and as usual...

[Androidphan]

Doesn't the EEE pc have any battery monitoring? Then the correct paths
can be modified in the Batteryservice in stead of just an unknown
status.

[Luca Belluccini]

I don't know if EeePc battery monitoring has the same "protocol".

[Yi Sun]

How about this ? It works for me so far.
diff --git a/services/jni/com_android_server_BatteryService.cpp
b/services/jni/com_android_server_BatteryService.cpp
index 6636a97..831f44e 100644
--- a/services/jni/com_android_server_BatteryService.cpp
+++ b/services/jni/com_android_server_BatteryService.cpp
@@ -37,7 +37,27 @@
#endif

namespace android {
-
+#if TARGET_PLATFORM == eee_701
+#define AC_ONLINE_PATH "/sys/class/power_supply/AC/online"
+ /*
+ I guess this is for USB power, EeePC does not have this
+ #define USB_ONLINE_PATH "/sys/class/power_supply/usb/online"
+ */
+#define BATTERY_STATUS_PATH "/sys/class/power_supply/BAT0/status"
+ /*
+ I don't think we have this part on EeePC, I could not find this
+ on my Sony either.
+ #define BATTERY_HEALTH_PATH
"/sys/class/power_supply/battery/health"
+ */
+#define BATTERY_PRESENT_PATH "/sys/class/power_supply/BAT0/present"
+#define BATTERY_CAPACITY_PATH
"/sys/class/power_supply/BAT0/energy_full"
+#define BATTERY_VOLTAGE_PATH "/sys/class/power_supply/BAT0/voltage_now"
+ /*
+ *Did not find this on my EeePC either
+ #define BATTERY_TEMPERATURE_PATH
"/sys/class/power_supply/battery/batt_temp"
+ */
+#define BATTERY_TECHNOLOGY_PATH
"/sys/class/power_supply/BAT0/technology"
+#else
#define AC_ONLINE_PATH "/sys/class/power_supply/ac/online"
#define USB_ONLINE_PATH "/sys/class/power_supply/usb/online"
#define BATTERY_STATUS_PATH "/sys/class/power_supply/battery/status"
@@ -47,7 +67,7 @@ namespace android {
#define BATTERY_VOLTAGE_PATH "/sys/class/power_supply/battery/batt_vol"
#define BATTERY_TEMPERATURE_PATH
"/sys/class/power_supply/battery/batt_temp"
#define BATTERY_TECHNOLOGY_PATH
"/sys/class/power_supply/battery/technology"
-
+#endif
struct FieldIds {
// members
jfieldID mAcOnline;
@@ -174,12 +194,21 @@ static void setIntField(JNIEnv* env, jobject obj,
const char* path, jfieldID fie
static void android_server_BatteryService_update(JNIEnv* env, jobject
obj)
{
setBooleanField(env, obj, AC_ONLINE_PATH, gFieldIds.mAcOnline);
+#if TARGET_PLATFORM == eee_701
+ env->SetBooleanField(obj,gFieldIds.mUsbOnline,false);
+#else
setBooleanField(env, obj, USB_ONLINE_PATH, gFieldIds.mUsbOnline);
+#endif
setBooleanField(env, obj, BATTERY_PRESENT_PATH,
gFieldIds.mBatteryPresent);

setIntField(env, obj, BATTERY_CAPACITY_PATH,
gFieldIds.mBatteryLevel);
setIntField(env, obj, BATTERY_VOLTAGE_PATH,
gFieldIds.mBatteryVoltage);
+#if TARGET_PLATFORM == eee_701
+ /*Zero ;)*/
+ env->SetIntField(obj,gFieldIds.mBatteryTemperature,0);
+#else
setIntField(env, obj, BATTERY_TEMPERATURE_PATH,
gFieldIds.mBatteryTemperature);
+#endif

const int SIZE = 128;
char buf[SIZE];
@@ -187,9 +216,13 @@ static void
android_server_BatteryService_update(JNIEnv* env, jobject obj)
if (readFromFile(BATTERY_STATUS_PATH, buf, SIZE) > 0)
env->SetIntField(obj, gFieldIds.mBatteryStatus,
getBatteryStatus(buf));

+
+#if TARGET_PLATFORM == eee_701
+ env->SetIntField(obj, gFieldIds.mBatteryHealth, 'G');
+#else
if (readFromFile(BATTERY_HEALTH_PATH, buf, SIZE) > 0)
env->SetIntField(obj, gFieldIds.mBatteryHealth,
getBatteryHealth(buf));
-
+#endif
if (readFromFile(BATTERY_TECHNOLOGY_PATH, buf, SIZE) > 0)
env->SetObjectField(obj, gFieldIds.mBatteryTechnology,
env->NewStringUTF(buf));
}
diff --git a/services/jni/com_android_server_BatteryService.cpp
b/services/jni/com_android_server_BatteryService.cpp
index 6636a97..831f44e 100644
--- a/services/jni/com_android_server_BatteryService.cpp
+++ b/services/jni/com_android_server_BatteryService.cpp
@@ -37,7 +37,27 @@
#endif

namespace android {
-
+#if TARGET_PLATFORM == eee_701
+#define AC_ONLINE_PATH "/sys/class/power_supply/AC/online"
+ /*
+ I guess this is for USB power, EeePC does not have this
+ #define USB_ONLINE_PATH "/sys/class/power_supply/usb/online"
+ */
+#define BATTERY_STATUS_PATH "/sys/class/power_supply/BAT0/status"
+ /*
+ I don't think we have this part on EeePC, I could not find this
+ on my Sony either.
+ #define BATTERY_HEALTH_PATH
"/sys/class/power_supply/battery/health"
+ */
+#define BATTERY_PRESENT_PATH "/sys/class/power_supply/BAT0/present"
+#define BATTERY_CAPACITY_PATH
"/sys/class/power_supply/BAT0/energy_full"
+#define BATTERY_VOLTAGE_PATH "/sys/class/power_supply/BAT0/voltage_now"
+ /*
+ *Did not find this on my EeePC either
+ #define BATTERY_TEMPERATURE_PATH
"/sys/class/power_supply/battery/batt_temp"
+ */
+#define BATTERY_TECHNOLOGY_PATH
"/sys/class/power_supply/BAT0/technology"
+#else
#define AC_ONLINE_PATH "/sys/class/power_supply/ac/online"
#define USB_ONLINE_PATH "/sys/class/power_supply/usb/online"
#define BATTERY_STATUS_PATH "/sys/class/power_supply/battery/status"
@@ -47,7 +67,7 @@ namespace android {
#define BATTERY_VOLTAGE_PATH "/sys/class/power_supply/battery/batt_vol"
#define BATTERY_TEMPERATURE_PATH
"/sys/class/power_supply/battery/batt_temp"
#define BATTERY_TECHNOLOGY_PATH
"/sys/class/power_supply/battery/technology"
-
+#endif
struct FieldIds {
// members
jfieldID mAcOnline;
@@ -174,12 +194,21 @@ static void setIntField(JNIEnv* env, jobject obj,
const char* path, jfieldID fie
static void android_server_BatteryService_update(JNIEnv* env, jobject
obj)
{
setBooleanField(env, obj, AC_ONLINE_PATH, gFieldIds.mAcOnline);
+#if TARGET_PLATFORM == eee_701
+ env->SetBooleanField(obj,gFieldIds.mUsbOnline,false);
+#else
setBooleanField(env, obj, USB_ONLINE_PATH, gFieldIds.mUsbOnline);
+#endif
setBooleanField(env, obj, BATTERY_PRESENT_PATH,
gFieldIds.mBatteryPresent);

setIntField(env, obj, BATTERY_CAPACITY_PATH,
gFieldIds.mBatteryLevel);
setIntField(env, obj, BATTERY_VOLTAGE_PATH,
gFieldIds.mBatteryVoltage);
+#if TARGET_PLATFORM == eee_701
+ /*Zero ;)*/
+ env->SetIntField(obj,gFieldIds.mBatteryTemperature,0);
+#else
setIntField(env, obj, BATTERY_TEMPERATURE_PATH,
gFieldIds.mBatteryTemperature);
+#endif

const int SIZE = 128;
char buf[SIZE];
@@ -187,9 +216,13 @@ static void
android_server_BatteryService_update(JNIEnv* env, jobject obj)
if (readFromFile(BATTERY_STATUS_PATH, buf, SIZE) > 0)
env->SetIntField(obj, gFieldIds.mBatteryStatus,
getBatteryStatus(buf));

+
+#if TARGET_PLATFORM == eee_701
+ env->SetIntField(obj, gFieldIds.mBatteryHealth, 'G');
+#else
if (readFromFile(BATTERY_HEALTH_PATH, buf, SIZE) > 0)
env->SetIntField(obj, gFieldIds.mBatteryHealth,
getBatteryHealth(buf));
-
+#endif
if (readFromFile(BATTERY_TECHNOLOGY_PATH, buf, SIZE) > 0)
env->SetObjectField(obj, gFieldIds.mBatteryTechnology,
env->NewStringUTF(buf));