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authorPaul Kocialkowski <contact@paulk.fr>2014-01-14 15:57:09 +0100
committerWolfgang Wiedmeyer <wolfgit@wiedmeyer.de>2017-02-22 00:46:58 +0100
commitac135b66fb258b669dbcf4608a9ea7f386c00386 (patch)
tree1bcd0ba7fb97575db72404db9a3b9edc521f3aa3 /sensors/ssp.c
parentf916f30d78514a3800a88d0f917debd77ec8a787 (diff)
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SMDK4x12 Sensors
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Diffstat (limited to 'sensors/ssp.c')
-rw-r--r--sensors/ssp.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/sensors/ssp.c b/sensors/ssp.c
new file mode 100644
index 0000000..d1d4ae1
--- /dev/null
+++ b/sensors/ssp.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2014 Paul Kocialkowski <contact@paulk.fr>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <errno.h>
+
+#include <hardware/sensors.h>
+#include <hardware/hardware.h>
+
+#define LOG_TAG "smdk4x12_sensors"
+#include <utils/Log.h>
+
+#include "smdk4x12_sensors.h"
+#include "ssp.h"
+
+int ssp_sensor_enable(int sensor_type)
+{
+ char path_enable[PATH_MAX] = "/sys/class/sensors/ssp_sensor/enable";
+ int value;
+ int rc;
+
+ ALOGD("%s(%d)", __func__, sensor_type);
+
+ if (sensor_type < 0 || sensor_type >= SENSOR_FACTORY_MAX)
+ return -EINVAL;
+
+ value = sysfs_value_read(path_enable);
+ if (value < 0)
+ value = 0;
+
+ value |= (1 << sensor_type);
+
+ rc = sysfs_value_write(path_enable, value);
+ if (rc < 0)
+ return -1;
+
+ return 0;
+}
+
+int ssp_sensor_disable(int sensor_type)
+{
+ char path_enable[PATH_MAX] = "/sys/class/sensors/ssp_sensor/enable";
+ int value;
+ int rc;
+
+ ALOGD("%s(%d)", __func__, sensor_type);
+
+ if (sensor_type < 0 || sensor_type >= SENSOR_FACTORY_MAX)
+ return -EINVAL;
+
+ value = sysfs_value_read(path_enable);
+ if (value < 0)
+ value = 0;
+
+ value &= ~(1 << sensor_type);
+
+ rc = sysfs_value_write(path_enable, value);
+ if (rc < 0)
+ return -1;
+
+ return 0;
+}