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HID: hid-sensor-hub: Enhance feature report set API

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Current API only allows setting one offset in the field. This API
is extended to set multiple offsets in the field report.
Also update parameters in the users of this API.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Srinivas Pandruvada
2015-02-19 15:35:26 -08:00
committed by Jiri Kosina
parent 6adc83fca7
commit 3950e03389
4 changed files with 33 additions and 14 deletions
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22
drivers/hid/hid-sensor-hub.c
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@@ -199,10 +199,14 @@ int sensor_hub_remove_callback(struct hid_sensor_hub_device *hsdev,
EXPORT_SYMBOL_GPL(sensor_hub_remove_callback);
int sensor_hub_set_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
u32 field_index, s32 value)
u32 field_index, int buffer_size, void *buffer)
{
struct hid_report *report;
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
__s32 *buf32 = buffer;
int i = 0;
int remaining_bytes;
__s32 value;
int ret = 0;
mutex_lock(&data->mutex);
@@ -211,7 +215,21 @@ int sensor_hub_set_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
ret = -EINVAL;
goto done_proc;
}
hid_set_field(report->field[field_index], 0, value);
remaining_bytes = do_div(buffer_size, sizeof(__s32));
if (buffer_size) {
for (i = 0; i < buffer_size; ++i) {
hid_set_field(report->field[field_index], i,
cpu_to_le32(*buf32));
++buf32;
}
}
if (remaining_bytes) {
value = 0;
memcpy(&value, (u8 *)buf32, remaining_bytes);
hid_set_field(report->field[field_index], i,
cpu_to_le32(value));
}
hid_hw_request(hsdev->hdev, report, HID_REQ_SET_REPORT);
hid_hw_wait(hsdev->hdev);