aboutsummaryrefslogtreecommitdiff
path: root/drivers/iio/common/hid-sensors/hid-sensor-attributes.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/iio/common/hid-sensors/hid-sensor-attributes.h')
-rw-r--r--drivers/iio/common/hid-sensors/hid-sensor-attributes.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-attributes.h b/drivers/iio/common/hid-sensors/hid-sensor-attributes.h
new file mode 100644
index 00000000000..a4676a0c3de
--- /dev/null
+++ b/drivers/iio/common/hid-sensors/hid-sensor-attributes.h
@@ -0,0 +1,57 @@
+/*
+ * HID Sensors Driver
+ * Copyright (c) 2012, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+#ifndef _HID_SENSORS_ATTRIBUTES_H
+#define _HID_SENSORS_ATTRIBUTES_H
+
+/* Common hid sensor iio structure */
+struct hid_sensor_iio_common {
+ struct hid_sensor_hub_device *hsdev;
+ struct platform_device *pdev;
+ unsigned usage_id;
+ bool data_ready;
+ struct hid_sensor_hub_attribute_info poll;
+ struct hid_sensor_hub_attribute_info report_state;
+ struct hid_sensor_hub_attribute_info power_state;
+ struct hid_sensor_hub_attribute_info sensitivity;
+};
+
+/*Convert from hid unit expo to regular exponent*/
+static inline int hid_sensor_convert_exponent(int unit_expo)
+{
+ if (unit_expo < 0x08)
+ return unit_expo;
+ else if (unit_expo <= 0x0f)
+ return -(0x0f-unit_expo+1);
+ else
+ return 0;
+}
+
+int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev,
+ u32 usage_id,
+ struct hid_sensor_iio_common *st);
+int hid_sensor_write_raw_hyst_value(struct hid_sensor_iio_common *st,
+ int val1, int val2);
+int hid_sensor_read_raw_hyst_value(struct hid_sensor_iio_common *st,
+ int *val1, int *val2);
+int hid_sensor_write_samp_freq_value(struct hid_sensor_iio_common *st,
+ int val1, int val2);
+int hid_sensor_read_samp_freq_value(struct hid_sensor_iio_common *st,
+ int *val1, int *val2);
+
+#endif