@@ -42,11 +42,13 @@ struct accel_3d_state {
struct hid_sensor_hub_callbacks callbacks;
struct hid_sensor_common common_attributes;
struct hid_sensor_hub_attribute_info accel[ACCEL_3D_CHANNEL_MAX];
- u32 accel_val[ACCEL_3D_CHANNEL_MAX];
+ /* Reserve for 3 channels + padding + timestamp */
+ u32 accel_val[ACCEL_3D_CHANNEL_MAX + 3];
int scale_pre_decml;
int scale_post_decml;
int scale_precision;
int value_offset;
+ int64_t timestamp;
};
static const u32 accel_3d_addresses[ACCEL_3D_CHANNEL_MAX] = {
@@ -87,7 +89,8 @@ static const struct iio_chan_spec accel_3d_channels[] = {
BIT(IIO_CHAN_INFO_SAMP_FREQ) |
BIT(IIO_CHAN_INFO_HYSTERESIS),
.scan_index = CHANNEL_SCAN_INDEX_Z,
- }
+ },
+ IIO_CHAN_SOFT_TIMESTAMP(3)
};
/* Adjust channel real bits based on report descriptor */
@@ -192,11 +195,11 @@ static const struct iio_info accel_3d_info = {
};
/* Function to push data to buffer */
-static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data,
- int len)
+static void hid_sensor_push_data(struct iio_dev *indio_dev, void *data,
+ int len, int64_t timestamp)
{
dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
- iio_push_to_buffers(indio_dev, data);
+ iio_push_to_buffers_with_timestamp(indio_dev, data, timestamp);
}
/* Callback handler to send event after all samples are received and captured */
@@ -208,10 +211,17 @@ static int accel_3d_proc_event(struct hid_sensor_hub_device *hsdev,
struct accel_3d_state *accel_state = iio_priv(indio_dev);
dev_dbg(&indio_dev->dev, "accel_3d_proc_event\n");
- if (atomic_read(&accel_state->common_attributes.data_ready))
+ if (atomic_read(&accel_state->common_attributes.data_ready)) {
+ if (!accel_state->timestamp)
+ accel_state->timestamp = iio_get_time_ns(indio_dev);
+
hid_sensor_push_data(indio_dev,
- accel_state->accel_val,
- sizeof(accel_state->accel_val));
+ accel_state->accel_val,
+ sizeof(accel_state->accel_val),
+ accel_state->timestamp);
+
+ accel_state->timestamp = 0;
+ }
return 0;
}
@@ -236,6 +246,12 @@ static int accel_3d_capture_sample(struct hid_sensor_hub_device *hsdev,
*(u32 *)raw_data;
ret = 0;
break;
+ case HID_USAGE_SENSOR_TIME_TIMESTAMP:
+ accel_state->timestamp =
+ hid_sensor_convert_timestamp(
+ &accel_state->common_attributes,
+ *(int64_t *)raw_data);
+ break;
default:
break;
}
@@ -58,6 +58,10 @@ static struct {
{HID_USAGE_SENSOR_PRESSURE, 0, 100, 0},
{HID_USAGE_SENSOR_PRESSURE, HID_USAGE_SENSOR_UNITS_PASCAL, 0, 1000000},
+
+ {HID_USAGE_SENSOR_TIME_TIMESTAMP, 0, 1000000000, 0},
+ {HID_USAGE_SENSOR_TIME_TIMESTAMP, HID_USAGE_SENSOR_UNITS_MILLISECOND,
+ 1000000, 0},
};
static int pow_10(unsigned power)
@@ -346,6 +350,13 @@ int hid_sensor_format_scale(u32 usage_id,
}
EXPORT_SYMBOL(hid_sensor_format_scale);
+int64_t hid_sensor_convert_timestamp(struct hid_sensor_common *st,
+ int64_t raw_value)
+{
+ return st->timestamp_ns_scale * raw_value;
+}
+EXPORT_SYMBOL(hid_sensor_convert_timestamp);
+
static
int hid_sensor_get_reporting_interval(struct hid_sensor_hub_device *hsdev,
u32 usage_id,
@@ -367,6 +378,7 @@ int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev,
struct hid_sensor_common *st)
{
+ struct hid_sensor_hub_attribute_info timestamp;
hid_sensor_get_reporting_interval(hsdev, usage_id, st);
@@ -385,11 +397,25 @@ int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev,
HID_USAGE_SENSOR_PROP_SENSITIVITY_ABS,
&st->sensitivity);
- hid_dbg(hsdev->hdev, "common attributes: %x:%x, %x:%x, %x:%x %x:%x\n",
- st->poll.index, st->poll.report_id,
- st->report_state.index, st->report_state.report_id,
- st->power_state.index, st->power_state.report_id,
- st->sensitivity.index, st->sensitivity.report_id);
+ sensor_hub_input_get_attribute_info(hsdev,
+ HID_INPUT_REPORT, usage_id,
+ HID_USAGE_SENSOR_TIME_TIMESTAMP,
+ ×tamp);
+ if (timestamp.index >= 0 && timestamp.report_id) {
+ int val0, val1;
+
+ hid_sensor_format_scale(HID_USAGE_SENSOR_TIME_TIMESTAMP,
+ ×tamp, &val0, &val1);
+ st->timestamp_ns_scale = val0;
+ } else
+ st->timestamp_ns_scale = 1000000000;
+
+ hid_dbg(hsdev->hdev, "common attributes: %x:%x, %x:%x, %x:%x %x:%x %x:%x\n",
+ st->poll.index, st->poll.report_id,
+ st->report_state.index, st->report_state.report_id,
+ st->power_state.index, st->power_state.report_id,
+ st->sensitivity.index, st->sensitivity.report_id,
+ timestamp.index, timestamp.report_id);
return 0;
}
@@ -232,6 +232,7 @@ struct hid_sensor_common {
atomic_t data_ready;
atomic_t user_requested_state;
struct iio_trigger *trigger;
+ int timestamp_ns_scale;
struct hid_sensor_hub_attribute_info poll;
struct hid_sensor_hub_attribute_info report_state;
struct hid_sensor_hub_attribute_info power_state;
@@ -271,4 +272,7 @@ int hid_sensor_format_scale(u32 usage_id,
s32 hid_sensor_read_poll_value(struct hid_sensor_common *st);
+int64_t hid_sensor_convert_timestamp(struct hid_sensor_common *st,
+ int64_t raw_value);
+
#endif
@@ -95,6 +95,7 @@
#define HID_USAGE_SENSOR_TIME_HOUR 0x200525
#define HID_USAGE_SENSOR_TIME_MINUTE 0x200526
#define HID_USAGE_SENSOR_TIME_SECOND 0x200527
+#define HID_USAGE_SENSOR_TIME_TIMESTAMP 0x200529
/* Units */
#define HID_USAGE_SENSOR_UNITS_NOT_SPECIFIED 0x00