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path: root/drivers/iio/accel/hid-sensor-accel-3d.c
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Diffstat (limited to 'drivers/iio/accel/hid-sensor-accel-3d.c')
-rw-r--r--drivers/iio/accel/hid-sensor-accel-3d.c104
1 files changed, 84 insertions, 20 deletions
diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
index ab1e238d5c75..ca5759c0c318 100644
--- a/drivers/iio/accel/hid-sensor-accel-3d.c
+++ b/drivers/iio/accel/hid-sensor-accel-3d.c
@@ -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] = {
@@ -87,6 +89,42 @@ 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)
+};
+
+/* Channel definitions */
+static const struct iio_chan_spec gravity_channels[] = {
+ {
+ .type = IIO_GRAVITY,
+ .modified = 1,
+ .channel2 = IIO_MOD_X,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
+ BIT(IIO_CHAN_INFO_SCALE) |
+ BIT(IIO_CHAN_INFO_SAMP_FREQ) |
+ BIT(IIO_CHAN_INFO_HYSTERESIS),
+ .scan_index = CHANNEL_SCAN_INDEX_X,
+ }, {
+ .type = IIO_GRAVITY,
+ .modified = 1,
+ .channel2 = IIO_MOD_Y,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
+ BIT(IIO_CHAN_INFO_SCALE) |
+ BIT(IIO_CHAN_INFO_SAMP_FREQ) |
+ BIT(IIO_CHAN_INFO_HYSTERESIS),
+ .scan_index = CHANNEL_SCAN_INDEX_Y,
+ }, {
+ .type = IIO_GRAVITY,
+ .modified = 1,
+ .channel2 = IIO_MOD_Z,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
+ BIT(IIO_CHAN_INFO_SCALE) |
+ BIT(IIO_CHAN_INFO_SAMP_FREQ) |
+ BIT(IIO_CHAN_INFO_HYSTERESIS),
+ .scan_index = CHANNEL_SCAN_INDEX_Z,
}
};
@@ -111,6 +149,8 @@ static int accel_3d_read_raw(struct iio_dev *indio_dev,
int report_id = -1;
u32 address;
int ret_type;
+ struct hid_sensor_hub_device *hsdev =
+ accel_state->common_attributes.hsdev;
*val = 0;
*val2 = 0;
@@ -122,8 +162,7 @@ static int accel_3d_read_raw(struct iio_dev *indio_dev,
if (report_id >= 0)
*val = sensor_hub_input_attr_get_raw_value(
accel_state->common_attributes.hsdev,
- HID_USAGE_SENSOR_ACCEL_3D, address,
- report_id,
+ hsdev->usage, address, report_id,
SENSOR_HUB_SYNC);
else {
*val = 0;
@@ -192,11 +231,11 @@ 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 +247,17 @@ 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 +282,12 @@ 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;
}
@@ -272,7 +324,7 @@ static int accel_3d_parse_report(struct platform_device *pdev,
st->accel[2].index, st->accel[2].report_id);
st->scale_precision = hid_sensor_format_scale(
- HID_USAGE_SENSOR_ACCEL_3D,
+ hsdev->usage,
&st->accel[CHANNEL_SCAN_INDEX_X],
&st->scale_pre_decml, &st->scale_post_decml);
@@ -295,9 +347,12 @@ static int accel_3d_parse_report(struct platform_device *pdev,
static int hid_accel_3d_probe(struct platform_device *pdev)
{
int ret = 0;
- static const char *name = "accel_3d";
+ static const char *name;
struct iio_dev *indio_dev;
struct accel_3d_state *accel_state;
+ const struct iio_chan_spec *channel_spec;
+ int channel_size;
+
struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
indio_dev = devm_iio_device_alloc(&pdev->dev,
@@ -311,24 +366,30 @@ static int hid_accel_3d_probe(struct platform_device *pdev)
accel_state->common_attributes.hsdev = hsdev;
accel_state->common_attributes.pdev = pdev;
- ret = hid_sensor_parse_common_attributes(hsdev,
- HID_USAGE_SENSOR_ACCEL_3D,
+ if (hsdev->usage == HID_USAGE_SENSOR_ACCEL_3D) {
+ name = "accel_3d";
+ channel_spec = accel_3d_channels;
+ channel_size = sizeof(accel_3d_channels);
+ } else {
+ name = "gravity";
+ channel_spec = gravity_channels;
+ channel_size = sizeof(gravity_channels);
+ }
+ ret = hid_sensor_parse_common_attributes(hsdev, hsdev->usage,
&accel_state->common_attributes);
if (ret) {
dev_err(&pdev->dev, "failed to setup common attributes\n");
return ret;
}
+ indio_dev->channels = kmemdup(channel_spec, channel_size, GFP_KERNEL);
- indio_dev->channels = kmemdup(accel_3d_channels,
- sizeof(accel_3d_channels), GFP_KERNEL);
if (!indio_dev->channels) {
dev_err(&pdev->dev, "failed to duplicate channels\n");
return -ENOMEM;
}
-
ret = accel_3d_parse_report(pdev, hsdev,
- (struct iio_chan_spec *)indio_dev->channels,
- HID_USAGE_SENSOR_ACCEL_3D, accel_state);
+ (struct iio_chan_spec *)indio_dev->channels,
+ hsdev->usage, accel_state);
if (ret) {
dev_err(&pdev->dev, "failed to setup attributes\n");
goto error_free_dev_mem;
@@ -363,7 +424,7 @@ static int hid_accel_3d_probe(struct platform_device *pdev)
accel_state->callbacks.send_event = accel_3d_proc_event;
accel_state->callbacks.capture_sample = accel_3d_capture_sample;
accel_state->callbacks.pdev = pdev;
- ret = sensor_hub_register_callback(hsdev, HID_USAGE_SENSOR_ACCEL_3D,
+ ret = sensor_hub_register_callback(hsdev, hsdev->usage,
&accel_state->callbacks);
if (ret < 0) {
dev_err(&pdev->dev, "callback reg failed\n");
@@ -390,7 +451,7 @@ static int hid_accel_3d_remove(struct platform_device *pdev)
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
struct accel_3d_state *accel_state = iio_priv(indio_dev);
- sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_ACCEL_3D);
+ sensor_hub_remove_callback(hsdev, hsdev->usage);
iio_device_unregister(indio_dev);
hid_sensor_remove_trigger(&accel_state->common_attributes);
iio_triggered_buffer_cleanup(indio_dev);
@@ -404,6 +465,9 @@ static const struct platform_device_id hid_accel_3d_ids[] = {
/* Format: HID-SENSOR-usage_id_in_hex_lowercase */
.name = "HID-SENSOR-200073",
},
+ { /* gravity sensor */
+ .name = "HID-SENSOR-20007b",
+ },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(platform, hid_accel_3d_ids);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 18:40:04 +0000