From patchwork Tue Jan 5 07:22:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ye Xiang X-Patchwork-Id: 11998243 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3CD15C43333 for ; Tue, 5 Jan 2021 07:22:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 112EC225AC for ; Tue, 5 Jan 2021 07:22:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726960AbhAEHWC (ORCPT ); Tue, 5 Jan 2021 02:22:02 -0500 Received: from mga02.intel.com ([134.134.136.20]:49501 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726330AbhAEHWB (ORCPT ); Tue, 5 Jan 2021 02:22:01 -0500 IronPort-SDR: tD8w19hiA1QVCAOJOJ4zqHZdtnR9EAGMMhxKa84gWuzBbPoCxGAYAXp0idDJucpa9lJ0KE/GlO EizapIGFLDoQ== X-IronPort-AV: E=McAfee;i="6000,8403,9854"; a="164137796" X-IronPort-AV: E=Sophos;i="5.78,476,1599548400"; d="scan'208";a="164137796" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jan 2021 23:21:07 -0800 IronPort-SDR: +O9Di5ofTDI2b96/EdBceI82WzZG01NqI0x91k6YeK9EcHdmDxbmHvG8mhbonE5EZ1HwyxXUsy oJAhn9w2Wf8Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.78,476,1599548400"; d="scan'208";a="350260632" Received: from host.sh.intel.com ([10.239.154.115]) by fmsmga008.fm.intel.com with ESMTP; 04 Jan 2021 23:21:05 -0800 From: Ye Xiang To: jikos@kernel.org, jic23@kernel.org, srinivas.pandruvada@linux.intel.com Cc: linux-input@vger.kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Ye Xiang Subject: [PATCH v3 6/6] iio: hid-sensor-rotation: Add timestamp channel Date: Tue, 5 Jan 2021 15:22:03 +0800 Message-Id: <20210105072203.5701-7-xiang.ye@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210105072203.5701-1-xiang.ye@intel.com> References: <20210105072203.5701-1-xiang.ye@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Each sample has a timestamp field with this change. This timestamp may be from the sensor hub when present or local kernel timestamp. And the unit of timestamp is nanosecond. Signed-off-by: Ye Xiang --- drivers/iio/orientation/hid-sensor-rotation.c | 46 +++++++++++-------- 1 file changed, 26 insertions(+), 20 deletions(-) diff --git a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c index 665ccf3673cc..b0245b3b7ffc 100644 --- a/drivers/iio/orientation/hid-sensor-rotation.c +++ b/drivers/iio/orientation/hid-sensor-rotation.c @@ -20,11 +20,15 @@ struct dev_rot_state { struct hid_sensor_hub_callbacks callbacks; struct hid_sensor_common common_attributes; struct hid_sensor_hub_attribute_info quaternion; - u32 sampled_vals[4]; + struct { + u32 sampled_vals[4] __aligned(16); + u64 timestamp __aligned(8); + } scan; int scale_pre_decml; int scale_post_decml; int scale_precision; int value_offset; + s64 timestamp; }; static const u32 rotation_sensitivity_addresses[] = { @@ -42,8 +46,10 @@ static const struct iio_chan_spec dev_rot_channels[] = { .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ) | BIT(IIO_CHAN_INFO_OFFSET) | BIT(IIO_CHAN_INFO_SCALE) | - BIT(IIO_CHAN_INFO_HYSTERESIS) - } + BIT(IIO_CHAN_INFO_HYSTERESIS), + .scan_index = 0 + }, + IIO_CHAN_SOFT_TIMESTAMP(1) }; /* Adjust channel real bits based on report descriptor */ @@ -75,7 +81,7 @@ static int dev_rot_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_RAW: if (size >= 4) { for (i = 0; i < 4; ++i) - vals[i] = rot_state->sampled_vals[i]; + vals[i] = rot_state->scan.sampled_vals[i]; ret_type = IIO_VAL_INT_MULTIPLE; *val_len = 4; } else @@ -137,15 +143,6 @@ static const struct iio_info dev_rot_info = { .write_raw = &dev_rot_write_raw, }; -/* Function to push data to buffer */ -static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len) -{ - dev_dbg(&indio_dev->dev, "hid_sensor_push_data >>\n"); - iio_push_to_buffers(indio_dev, (u8 *)data); - dev_dbg(&indio_dev->dev, "hid_sensor_push_data <<\n"); - -} - /* Callback handler to send event after all samples are received and captured */ static int dev_rot_proc_event(struct hid_sensor_hub_device *hsdev, unsigned usage_id, @@ -155,10 +152,15 @@ static int dev_rot_proc_event(struct hid_sensor_hub_device *hsdev, struct dev_rot_state *rot_state = iio_priv(indio_dev); dev_dbg(&indio_dev->dev, "dev_rot_proc_event\n"); - if (atomic_read(&rot_state->common_attributes.data_ready)) - hid_sensor_push_data(indio_dev, - (u8 *)rot_state->sampled_vals, - sizeof(rot_state->sampled_vals)); + if (atomic_read(&rot_state->common_attributes.data_ready)) { + if (!rot_state->timestamp) + rot_state->timestamp = iio_get_time_ns(indio_dev); + + iio_push_to_buffers_with_timestamp(indio_dev, &rot_state->scan, + rot_state->timestamp); + + rot_state->timestamp = 0; + } return 0; } @@ -173,10 +175,14 @@ static int dev_rot_capture_sample(struct hid_sensor_hub_device *hsdev, struct dev_rot_state *rot_state = iio_priv(indio_dev); if (usage_id == HID_USAGE_SENSOR_ORIENT_QUATERNION) { - memcpy(rot_state->sampled_vals, raw_data, - sizeof(rot_state->sampled_vals)); + memcpy(&rot_state->scan.sampled_vals, raw_data, + sizeof(rot_state->scan.sampled_vals)); + dev_dbg(&indio_dev->dev, "Recd Quat len:%zu::%zu\n", raw_len, - sizeof(rot_state->sampled_vals)); + sizeof(rot_state->scan.sampled_vals)); + } else if (usage_id == HID_USAGE_SENSOR_TIME_TIMESTAMP) { + rot_state->timestamp = hid_sensor_convert_timestamp(&rot_state->common_attributes, + *(s64 *)raw_data); } return 0;