mako: notify touch driver when charger is connected
Notify the touch driver to enable noise mitigation
when charger is connected
Change-Id: I3bb910cecc1c411f1067aa94852f816ef7036571
diff --git a/charger_touch/Android.mk b/charger_touch/Android.mk
new file mode 100644
index 0000000..35f4c3a
--- /dev/null
+++ b/charger_touch/Android.mk
@@ -0,0 +1,30 @@
+#
+# Copyright 2012 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+ifneq ($(filter mako occam,$(TARGET_DEVICE)),)
+
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := charger_touch.c
+LOCAL_SHARED_LIBRARIES := libcutils libhardware_legacy
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_PATH := $(TARGET_OUT)/bin
+LOCAL_MODULE := charger_touch
+LOCAL_MODULE_OWNER := lge
+include $(BUILD_EXECUTABLE)
+
+endif
diff --git a/charger_touch/NOTICE b/charger_touch/NOTICE
new file mode 100644
index 0000000..33ff961
--- /dev/null
+++ b/charger_touch/NOTICE
@@ -0,0 +1,190 @@
+
+ Copyright (c) 2005-2012, The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
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+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
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+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
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+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
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+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
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+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
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+ copyright license to reproduce, prepare Derivative Works of,
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+ Work and such Derivative Works in Source or Object form.
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+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
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+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
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+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
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+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
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diff --git a/charger_touch/charger_touch.c b/charger_touch/charger_touch.c
new file mode 100644
index 0000000..5118001
--- /dev/null
+++ b/charger_touch/charger_touch.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "CHARGER_TOUCH"
+#include <hardware_legacy/uevent.h>
+#include <utils/Log.h>
+#include <fcntl.h>
+
+#define POWER_SUPPLY_PATH "/sys/class/power_supply"
+#define TOUCH_PATH "/sys/devices/virtual/input/lge_touch/charger"
+
+const char* WIRELESS = "change@/devices/platform/bq51051b_wlc/power_supply/wireless";
+const char* USB = "change@/devices/platform/msm_ssbi.0/pm8921-core/pm8921-charger/power_supply/usb";
+
+enum {
+ NO_CHARGER,
+ CHARGER_WIRELESS,
+ CHARGER_USB,
+ CHARGER_AC
+};
+
+static void read_path(const char* path, char* buf, size_t size)
+{
+ int fd = open(path, O_RDONLY, 0);
+ int count;
+
+ if (fd < 0) {
+ ALOGE("Could not open %s", path);
+ return;
+ }
+ count = read(fd, buf, size);
+
+ close(fd);
+}
+
+static void write_path(int type)
+{
+ int fd = open(TOUCH_PATH, O_RDWR, 0);
+ char buf[2];
+
+ if (fd < 0) {
+ ALOGE("Could not open %s", TOUCH_PATH);
+ return;
+ }
+
+ snprintf(buf, sizeof(buf), "%d", type);
+ write(fd, buf, 1);
+
+ close(fd);
+}
+
+static void handle_uevent(const char* udata)
+{
+ const char *str = udata;
+ char path[PATH_MAX];
+ char wlc[2], usb[2], ac[2];
+ int type = NO_CHARGER;
+
+ memset(wlc, 0, 2);
+ memset(usb, 0, 2);
+ memset(ac, 0, 2);
+
+ if (!strncmp(str, WIRELESS, strlen(WIRELESS))) {
+ snprintf(path, sizeof(path), "%s/wireless/online", POWER_SUPPLY_PATH);
+ read_path(path, wlc, 1);
+ if (!strncmp(wlc, "1", 1))
+ type = CHARGER_WIRELESS;
+
+ ALOGE("Type: %d", type);
+ write_path(type);
+ } else if (!strncmp(str, USB, strlen(USB))) {
+ snprintf(path, sizeof(path), "%s/usb/online", POWER_SUPPLY_PATH);
+ read_path(path, usb, 1);
+
+ snprintf(path, sizeof(path), "%s/pm8921-dc/online", POWER_SUPPLY_PATH);
+ read_path(path, ac, 1);
+
+ if (!strncmp(usb, "1", 1)) {
+ type = CHARGER_USB;
+ } else if (!strncmp(ac, "1", 1)) {
+ type = CHARGER_AC;
+ }
+
+ ALOGE("Type: %d", type);
+ write_path(type);
+ }
+
+}
+
+static void event_loop(void)
+{
+ int len = 0;
+ static char udata[4096];
+ memset(udata, 0, sizeof(udata));
+
+ uevent_init();
+
+ while (1) {
+ len = uevent_next_event(udata, sizeof(udata) - 2);
+ handle_uevent(udata);
+ }
+}
+
+int main()
+{
+ event_loop();
+ return 0;
+}
diff --git a/device.mk b/device.mk
index 9cea07f..f38a51b 100644
--- a/device.mk
+++ b/device.mk
@@ -210,7 +210,8 @@
PRODUCT_PACKAGES += \
bdAddrLoader \
libwfcu \
- conn_init
+ conn_init \
+ charger_touch
PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
rild.libpath=/system/lib/libril-qc-qmi-1.so
diff --git a/init.mako.rc b/init.mako.rc
index b02d271..09a8168 100644
--- a/init.mako.rc
+++ b/init.mako.rc
@@ -266,6 +266,7 @@
chown system /sys/module/pm_8x60/modes/cpu2/standalone_power_collapse/idle_enabled
chown system /sys/module/pm_8x60/modes/cpu3/standalone_power_collapse/idle_enabled
chown system /sys/module/pm_8x60/modes/cpu0/power_collapse/idle_enabled
+ chown system /sys/devices/virtual/input/lge_touch/charger
on charger
# Enable Power modes and set the CPU Freq Sampling rates
@@ -301,7 +302,7 @@
on property:init.svc.wpa_supplicant=stopped
stop dhcpcd
-
+
service rmt_storage /system/bin/rmt_storage
class main
user root
@@ -458,3 +459,8 @@
class late_start
user system
group system
+
+service charger_touch /system/bin/charger_touch
+ class main
+ user system
+ group system
