SMDK4x12 Sensors

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>

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;
+}