From patchwork Fri Sep 6 12:17:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Nyekjaer X-Patchwork-Id: 11135173 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3896A1708 for ; Fri, 6 Sep 2019 12:17:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 19A4D206CD for ; Fri, 6 Sep 2019 12:17:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=geanix.com header.i=@geanix.com header.b="mo57x2z8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391967AbfIFMR3 (ORCPT ); Fri, 6 Sep 2019 08:17:29 -0400 Received: from first.geanix.com ([116.203.34.67]:41590 "EHLO first.geanix.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391966AbfIFMR3 (ORCPT ); Fri, 6 Sep 2019 08:17:29 -0400 Received: from zen.localdomain (unknown [85.184.140.241]) by first.geanix.com (Postfix) with ESMTPSA id 6EDBF6394C; Fri, 6 Sep 2019 12:17:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=geanix.com; s=first; t=1567772231; bh=FHr7KRgGYTeybsvF5DFtbV+yCCHQ8iAdddDfUKoHIfA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=mo57x2z8k/ewMBprc/188lAY4hZuEgV+ff9m8BUdTYCYii7R0Xn1XsQye6+Aao1/G WuSXmd+soODqsv22gD8cmlUJDe8RFhiV/746ksD7lkS2RKkwckktWhQ3aeqkzSWtNR ++mmImdwIiPC1WSuNan/TpD2+V8ks7o3V6DcAp0Y4WngPfFsTS03gDSsaHPe9fjNBv wRP+Ep1Zj6C/FZISlepbs7+kbYVHt2i/qh+gIhDZOnFQ7EHrfhWjXiBNBBa6AqdVwx j3Td8JavbI9SwQ1N+K2wJPU6msuVgJ0Sr6K5gDOjF2a8MFW0dLscYrgHYW5bSUCbm8 QcRW2NiSUTrbw== From: Sean Nyekjaer To: linux-iio@vger.kernel.org, jic23@kernel.org, lorenzo.bianconi83@gmail.com Cc: Sean Nyekjaer , denis.ciocca@st.com, mario.tesi@st.com, armando.visconti@st.com, martin@geanix.com Subject: [PATCH v4 5/6] iio: imu: st_lsm6dsx: add motion report function and call from interrupt Date: Fri, 6 Sep 2019 14:17:15 +0200 Message-Id: <20190906121716.66194-5-sean@geanix.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190906121716.66194-1-sean@geanix.com> References: <20190906121716.66194-1-sean@geanix.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=4.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,UNPARSEABLE_RELAY,URIBL_BLOCKED autolearn=disabled version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on 77834cc0481d Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Report iio motion events to iio subsystem Signed-off-by: Sean Nyekjaer --- Changes since v3: * added wakeup_src_reg and masks to device settings drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h | 5 ++ drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 51 ++++++++++++++++++++ 2 files changed, 56 insertions(+) diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h index d04473861fba..015b837f366f 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h @@ -186,6 +186,11 @@ struct st_lsm6dsx_shub_settings { struct st_lsm6dsx_event_settings { struct st_lsm6dsx_reg enable_reg; struct st_lsm6dsx_reg wakeup_reg; + u8 wakeup_src_reg; + u8 wakeup_src_status_mask; + u8 wakeup_src_z_mask; + u8 wakeup_src_y_mask; + u8 wakeup_src_x_mask; }; enum st_lsm6dsx_ext_sensor_id { diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c index ce467308eadd..470821b54933 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c @@ -48,6 +48,7 @@ #include #include #include +#include #include #include #include @@ -520,6 +521,11 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x5B, .mask = GENMASK(5, 0), }, + .wakeup_src_reg = 0x1b, + .wakeup_src_status_mask = BIT(4), + .wakeup_src_z_mask = BIT(0), + .wakeup_src_y_mask = BIT(1), + .wakeup_src_x_mask = BIT(2), }, }, { @@ -1612,6 +1618,40 @@ static struct iio_dev *st_lsm6dsx_alloc_iiodev(struct st_lsm6dsx_hw *hw, return iio_dev; } +void st_lsm6dsx_report_motion_event(struct st_lsm6dsx_hw *hw, int data) +{ + s64 timestamp = iio_get_time_ns(hw->iio_devs[ST_LSM6DSX_ID_ACC]); + + if (data & hw->settings->event_settings.wakeup_src_z_mask) + iio_push_event(hw->iio_devs[ST_LSM6DSX_ID_ACC], + IIO_MOD_EVENT_CODE(IIO_ACCEL, + 0, + IIO_MOD_Z, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_EITHER), + timestamp); + + if (data & hw->settings->event_settings.wakeup_src_x_mask) + iio_push_event(hw->iio_devs[ST_LSM6DSX_ID_ACC], + IIO_MOD_EVENT_CODE(IIO_ACCEL, + 0, + IIO_MOD_Y, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_EITHER), + timestamp); + + if (data & hw->settings->event_settings.wakeup_src_x_mask) + iio_push_event(hw->iio_devs[ST_LSM6DSX_ID_ACC], + IIO_MOD_EVENT_CODE(IIO_ACCEL, + 0, + IIO_MOD_X, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_EITHER), + timestamp); + + return; +} + static irqreturn_t st_lsm6dsx_handler_irq(int irq, void *private) { return IRQ_WAKE_THREAD; @@ -1621,6 +1661,17 @@ static irqreturn_t st_lsm6dsx_handler_thread(int irq, void *private) { struct st_lsm6dsx_hw *hw = private; int count; + int data, err; + + if (hw->enable_event) { + err = regmap_read(hw->regmap, + hw->settings->event_settings.wakeup_src_reg, &data); + if (err < 0) + return IRQ_NONE; + + if (data & hw->settings->event_settings.wakeup_src_status_mask) + st_lsm6dsx_report_motion_event(hw, data); + } mutex_lock(&hw->fifo_lock); count = hw->settings->fifo_ops.read_fifo(hw);