From patchwork Tue Jan 5 09:35:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ye Xiang X-Patchwork-Id: 11998435 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=ham 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 7AB1EC433DB for ; Tue, 5 Jan 2021 09:35:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3708F2222A for ; Tue, 5 Jan 2021 09:35:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727979AbhAEJer (ORCPT ); Tue, 5 Jan 2021 04:34:47 -0500 Received: from mga17.intel.com ([192.55.52.151]:51525 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726394AbhAEJeq (ORCPT ); Tue, 5 Jan 2021 04:34:46 -0500 IronPort-SDR: HEb/q8iBwUw456tIHYGDugZwexr4BcmnfQmvnI1QuK4KPMnG10ieNpd/VOZfQ0TsyK6+Xb0Sdg cZRikqkkrBHA== X-IronPort-AV: E=McAfee;i="6000,8403,9854"; a="156864074" X-IronPort-AV: E=Sophos;i="5.78,476,1599548400"; d="scan'208";a="156864074" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jan 2021 01:34:05 -0800 IronPort-SDR: qa6f8KTzIFHnwGEBOaMSov+oKbXCdBkeGPeZHs+hDH/NdGwpHkrwOeVa/9LoAk2eOrCIccn20v RULLQgrTiJOA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.78,476,1599548400"; d="scan'208";a="569665153" Received: from host.sh.intel.com ([10.239.154.115]) by fmsmga005.fm.intel.com with ESMTP; 05 Jan 2021 01:34:03 -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 2/6] iio: hid-sensor-gyro-3d: Add timestamp channel Date: Tue, 5 Jan 2021 17:35:11 +0800 Message-Id: <20210105093515.19135-3-xiang.ye@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210105093515.19135-1-xiang.ye@intel.com> References: <20210105093515.19135-1-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/gyro/hid-sensor-gyro-3d.c | 40 ++++++++++++++++----------- 1 file changed, 24 insertions(+), 16 deletions(-) diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c index c817d91b3b51..37c7ac0ad32b 100644 --- a/drivers/iio/gyro/hid-sensor-gyro-3d.c +++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c @@ -23,15 +23,20 @@ enum gyro_3d_channel { GYRO_3D_CHANNEL_MAX, }; +#define CHANNEL_SCAN_INDEX_TIMESTAMP GYRO_3D_CHANNEL_MAX struct gyro_3d_state { struct hid_sensor_hub_callbacks callbacks; struct hid_sensor_common common_attributes; struct hid_sensor_hub_attribute_info gyro[GYRO_3D_CHANNEL_MAX]; - u32 gyro_val[GYRO_3D_CHANNEL_MAX]; + struct { + u32 gyro_val[GYRO_3D_CHANNEL_MAX]; + u64 timestamp __aligned(8); + } scan; int scale_pre_decml; int scale_post_decml; int scale_precision; int value_offset; + s64 timestamp; }; static const u32 gyro_3d_addresses[GYRO_3D_CHANNEL_MAX] = { @@ -79,7 +84,8 @@ static const struct iio_chan_spec gyro_3d_channels[] = { BIT(IIO_CHAN_INFO_SAMP_FREQ) | BIT(IIO_CHAN_INFO_HYSTERESIS), .scan_index = CHANNEL_SCAN_INDEX_Z, - } + }, + IIO_CHAN_SOFT_TIMESTAMP(CHANNEL_SCAN_INDEX_TIMESTAMP) }; /* Adjust channel real bits based on report descriptor */ @@ -185,14 +191,6 @@ static const struct iio_info gyro_3d_info = { .write_raw = &gyro_3d_write_raw, }; -/* Function to push data to buffer */ -static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data, - int len) -{ - dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n"); - iio_push_to_buffers(indio_dev, data); -} - /* Callback handler to send event after all samples are received and captured */ static int gyro_3d_proc_event(struct hid_sensor_hub_device *hsdev, unsigned usage_id, @@ -202,10 +200,15 @@ static int gyro_3d_proc_event(struct hid_sensor_hub_device *hsdev, struct gyro_3d_state *gyro_state = iio_priv(indio_dev); dev_dbg(&indio_dev->dev, "gyro_3d_proc_event\n"); - if (atomic_read(&gyro_state->common_attributes.data_ready)) - hid_sensor_push_data(indio_dev, - gyro_state->gyro_val, - sizeof(gyro_state->gyro_val)); + if (atomic_read(&gyro_state->common_attributes.data_ready)) { + if (!gyro_state->timestamp) + gyro_state->timestamp = iio_get_time_ns(indio_dev); + + iio_push_to_buffers_with_timestamp(indio_dev, &gyro_state->scan, + gyro_state->timestamp); + + gyro_state->timestamp = 0; + } return 0; } @@ -226,10 +229,15 @@ static int gyro_3d_capture_sample(struct hid_sensor_hub_device *hsdev, case HID_USAGE_SENSOR_ANGL_VELOCITY_Y_AXIS: case HID_USAGE_SENSOR_ANGL_VELOCITY_Z_AXIS: offset = usage_id - HID_USAGE_SENSOR_ANGL_VELOCITY_X_AXIS; - gyro_state->gyro_val[CHANNEL_SCAN_INDEX_X + offset] = - *(u32 *)raw_data; + gyro_state->scan.gyro_val[CHANNEL_SCAN_INDEX_X + offset] = + *(u32 *)raw_data; ret = 0; break; + case HID_USAGE_SENSOR_TIME_TIMESTAMP: + gyro_state->timestamp = + hid_sensor_convert_timestamp(&gyro_state->common_attributes, + *(s64 *)raw_data); + break; default: break; }