From patchwork Thu Oct 24 13:29:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ricardo Ribalda X-Patchwork-Id: 838541 Received: from mail-qk1-f182.google.com (mail-qk1-f182.google.com [209.85.222.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 17A741E32A5 for ; Thu, 24 Oct 2024 13:29:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729776555; cv=none; b=jssiWbruYV9p5XOHOQESjZ2g1Fyf7sQxrVKq6Lu39T7/hRi7rpYDE7d0rCTxyP7cKfDlaYMbfruXbEkc4pEH1LWfWCMKRHH6gFbw4BJnEJqy2KHwdhIj2MkAlLIq4zCW0hnVIij7B2xzBeeM87rgSMTREeA4Dv/CRq4W/9OdLx8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729776555; c=relaxed/simple; bh=TNFGg/CYQGxNs+Ld3XxJZ5IfmtwWB2COK0LRP9AdQLs=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=YiMijSZ0k8nvD6OVgCIKQeAMbK6sg1KWinJAjLoeqXpDpaslaek/MQI29aufXpCCTgKNgq38KGa5rG6oGyIRlVUVWrjmS9LC9IFwjw3TfzIJFaQAJZve+5X7K9j6HaBZpsoag7nhgmSTs9BlUOzLNmwEK/Njg9GGwSPBKmJLtlE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org; spf=pass smtp.mailfrom=chromium.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b=EVJMBPte; arc=none smtp.client-ip=209.85.222.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="EVJMBPte" Received: by mail-qk1-f182.google.com with SMTP id af79cd13be357-7b14f3927ddso56405285a.3 for ; Thu, 24 Oct 2024 06:29:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1729776550; x=1730381350; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=2mADvfbNearZia5yRK0i07ANDp2oc6aBLBYcSmlyDG4=; b=EVJMBPteZafBmJap6zDFwn8Z+zsrfzDjto8H3WRlNBNkpzz2XqMSTS2ws2kdzGlgc+ e4ScBYtOzT1IhMS2UMzXS8mUH8kJQh17+MX9y3MRSMhkj5bBR+tweuQrV5MeAWEVrWx2 TI9dPpRCLjMJKDtT8H3qZ364tD9RLfze+473g= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729776550; x=1730381350; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=2mADvfbNearZia5yRK0i07ANDp2oc6aBLBYcSmlyDG4=; b=YbgBimr3vsYN4pwnedj2S7aHJQlzr17kNKH7edRCIcNwPXhwcaXjK+buRsEcUWky8e IgUeSIPvwgVIEsvsn6CHDXCwyp34QegUObzKigFEz/EhwOCK6tRXsQsiFfm/s4x7DHUW eYE4UpQkdMPYMu4/3BDFSslhm5emjvUWe5Tbq0s+f+oziYns5lH48vLe4+20GxN7zBTF ObWm2J6g9maMCkffZTef48V+K05l6TygMdpugZGD067iRc/uVwsIbq7Rw6baF9GZbjep 938MUmppF8Pq0esQV5BzFIKbv4kCehTyzCOK4SghQl1XRDq4egmYEsbp0t/2DcejjuuM AHrw== X-Forwarded-Encrypted: i=1; AJvYcCXXZeEaLIhzUIpvop3zP5wva754cjZkfxJP9Fe38JGtf41M8DETr6Vcem1YLkj61ybuNyA67llWP+0dEg==@vger.kernel.org X-Gm-Message-State: AOJu0Yyinl/MqyS0u0zf0wh95nsECk7gAwVRW6Wbg1Rf2SPYFRTwinOj 9aT0i4329imQLSY0ELl2XIjydJ/9vlrjCKJeW5ZVm/erApdkHiT+8bQVS0vWXg== X-Google-Smtp-Source: AGHT+IGLbXLa5kyweKu7WefNH+VU10qvs7wfcV2860hFBGJU+bW6CxA3VhN5gpV4uuydTUUtEpHUDQ== X-Received: by 2002:a05:620a:4720:b0:7a1:62ad:9d89 with SMTP id af79cd13be357-7b186d12a38mr205596785a.64.1729776549881; Thu, 24 Oct 2024 06:29:09 -0700 (PDT) Received: from denia.c.googlers.com (189.216.85.34.bc.googleusercontent.com. [34.85.216.189]) by smtp.gmail.com with ESMTPSA id af79cd13be357-7b165a5d663sm484204885a.94.2024.10.24.06.29.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Oct 2024 06:29:09 -0700 (PDT) From: Ricardo Ribalda Date: Thu, 24 Oct 2024 13:29:07 +0000 Subject: [PATCH 3/3] iio: hid-sensor-prox: Add support for more channels Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241024-hpd-v1-3-2a125882f1f8@chromium.org> References: <20241024-hpd-v1-0-2a125882f1f8@chromium.org> In-Reply-To: <20241024-hpd-v1-0-2a125882f1f8@chromium.org> To: Jiri Kosina , Benjamin Tissoires , Jonathan Cameron , Srinivas Pandruvada , Lars-Peter Clausen Cc: Harvey Yang , linux-input@vger.kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Ricardo Ribalda X-Mailer: b4 0.13.0 Egis620 supports 3 channels: presense, proximity and attention. Modify the driver so it can read those channels as well. Signed-off-by: Ricardo Ribalda --- drivers/iio/light/hid-sensor-prox.c | 161 ++++++++++++++++++++---------------- 1 file changed, 89 insertions(+), 72 deletions(-) diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c index d38564fe22df..97550d0d21a9 100644 --- a/drivers/iio/light/hid-sensor-prox.c +++ b/drivers/iio/light/hid-sensor-prox.c @@ -13,16 +13,26 @@ #include #include "../common/hid-sensors/hid-sensor-trigger.h" -#define CHANNEL_SCAN_INDEX_PRESENCE 0 +static const u32 prox_usage_ids[] = { + HID_USAGE_SENSOR_HUMAN_PRESENCE, + HID_USAGE_SENSOR_HUMAN_PROXIMITY, + HID_USAGE_SENSOR_HUMAN_ATTENTION, +}; + +#define MAX_USAGE ARRAY_SIZE(prox_usage_ids) struct prox_state { struct hid_sensor_hub_callbacks callbacks; struct hid_sensor_common common_attributes; - struct hid_sensor_hub_attribute_info prox_attr; - u32 human_presence; + struct hid_sensor_hub_attribute_info prox_attr[MAX_USAGE]; + struct iio_chan_spec channels[MAX_USAGE]; + u32 channel2usage[MAX_USAGE]; + u32 human_presence[MAX_USAGE]; int scale_pre_decml; int scale_post_decml; int scale_precision; + unsigned long scan_mask[2]; + int num_channels; }; static const u32 prox_sensitivity_addresses[] = { @@ -30,17 +40,23 @@ static const u32 prox_sensitivity_addresses[] = { HID_USAGE_SENSOR_DATA_PRESENCE, }; -/* Channel definitions */ -static const struct iio_chan_spec prox_channels[] = { - { - .type = IIO_PROXIMITY, - .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_PRESENCE, +#define PROX_CHANNEL(_indexed, _channel) \ + {\ + .type = IIO_PROXIMITY,\ + .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),\ + .indexed = _indexed,\ + .channel = _channel,\ } + +/* Channel definitions (same order as prox_usage_ids) */ +static const struct iio_chan_spec prox_channels[] = { + PROX_CHANNEL(false, 0), // PRESENCE + PROX_CHANNEL(true, 1), // PROXIMITY + PROX_CHANNEL(true, 2), // ATTENTION }; /* Adjust channel real bits based on report descriptor */ @@ -62,7 +78,7 @@ static int prox_read_raw(struct iio_dev *indio_dev, { struct prox_state *prox_state = iio_priv(indio_dev); struct hid_sensor_hub_device *hsdev; - int report_id = -1; + int report_id; u32 address; int ret_type; s32 min; @@ -71,29 +87,22 @@ static int prox_read_raw(struct iio_dev *indio_dev, *val2 = 0; switch (mask) { case IIO_CHAN_INFO_RAW: - switch (chan->scan_index) { - case CHANNEL_SCAN_INDEX_PRESENCE: - report_id = prox_state->prox_attr.report_id; - min = prox_state->prox_attr.logical_minimum; - address = HID_USAGE_SENSOR_HUMAN_PRESENCE; - hsdev = prox_state->common_attributes.hsdev; - break; - default: - report_id = -1; - break; - } - if (report_id >= 0) { - hid_sensor_power_state(&prox_state->common_attributes, - true); - *val = sensor_hub_input_attr_get_raw_value( - hsdev, hsdev->usage, address, report_id, - SENSOR_HUB_SYNC, min < 0); - hid_sensor_power_state(&prox_state->common_attributes, - false); - } else { + if (chan->scan_index >= prox_state->num_channels) { *val = 0; return -EINVAL; } + address = prox_state->channel2usage[chan->scan_index]; + report_id = prox_state->prox_attr[chan->scan_index].report_id; + hsdev = prox_state->common_attributes.hsdev; + min = prox_state->prox_attr[chan->scan_index].logical_minimum; + hid_sensor_power_state(&prox_state->common_attributes, true); + *val = sensor_hub_input_attr_get_raw_value(hsdev, + hsdev->usage, + address, + report_id, + SENSOR_HUB_SYNC, + min < 0); + hid_sensor_power_state(&prox_state->common_attributes, false); ret_type = IIO_VAL_INT; break; case IIO_CHAN_INFO_SCALE: @@ -103,7 +112,7 @@ static int prox_read_raw(struct iio_dev *indio_dev, break; case IIO_CHAN_INFO_OFFSET: *val = hid_sensor_convert_exponent( - prox_state->prox_attr.unit_expo); + prox_state->prox_attr[chan->scan_index].unit_expo); ret_type = IIO_VAL_INT; break; case IIO_CHAN_INFO_SAMP_FREQ: @@ -178,48 +187,63 @@ static int prox_capture_sample(struct hid_sensor_hub_device *hsdev, { struct iio_dev *indio_dev = platform_get_drvdata(priv); struct prox_state *prox_state = iio_priv(indio_dev); - int ret = -EINVAL; - - switch (usage_id) { - case HID_USAGE_SENSOR_HUMAN_PRESENCE: - switch (raw_len) { - case 1: - prox_state->human_presence = *(u8 *)raw_data; - return 0; - case 4: - prox_state->human_presence = *(u32 *)raw_data; - return 0; - default: + int chan; + + for (chan = 0; chan < prox_state->num_channels; chan++) + if (prox_state->channel2usage[chan] == usage_id) break; - } + if (chan == prox_state->num_channels) + return -EINVAL; + + switch (raw_len) { + case 1: + prox_state->human_presence[chan] = *(u8 *)raw_data; + break; + case 4: + prox_state->human_presence[chan] = *(u32 *)raw_data; break; } - return ret; + return 0; } /* Parse report which is specific to an usage id*/ static int prox_parse_report(struct platform_device *pdev, struct hid_sensor_hub_device *hsdev, - struct iio_chan_spec *channels, - unsigned usage_id, struct prox_state *st) { + struct iio_chan_spec *channels = st->channels; + int index = 0; int ret; + int i; + + for (i = 0; i < MAX_USAGE; i++) { + u32 usage_id = prox_usage_ids[i]; + + ret = sensor_hub_input_get_attribute_info(hsdev, + HID_INPUT_REPORT, + hsdev->usage, + usage_id, + &st->prox_attr[index]); + if (ret < 0) + continue; + st->channel2usage[index] = usage_id; + st->scan_mask[0] |= BIT(index); + channels[index] = prox_channels[i]; + channels[index].scan_index = index; + prox_adjust_channel_bit_mask(channels, index, + st->prox_attr[index].size); + dev_dbg(&pdev->dev, "prox %x:%x\n", st->prox_attr[index].index, + st->prox_attr[index].report_id); + index++; + } - ret = sensor_hub_input_get_attribute_info(hsdev, HID_INPUT_REPORT, - usage_id, - HID_USAGE_SENSOR_HUMAN_PRESENCE, - &st->prox_attr); - if (ret < 0) + if (!index) return ret; - prox_adjust_channel_bit_mask(channels, CHANNEL_SCAN_INDEX_PRESENCE, - st->prox_attr.size); - dev_dbg(&pdev->dev, "prox %x:%x\n", st->prox_attr.index, - st->prox_attr.report_id); + st->num_channels = index; - return ret; + return 0; } /* Function to initialize the processing for usage id */ @@ -250,22 +274,15 @@ static int hid_prox_probe(struct platform_device *pdev) return ret; } - indio_dev->channels = devm_kmemdup(&pdev->dev, prox_channels, - sizeof(prox_channels), GFP_KERNEL); - if (!indio_dev->channels) { - dev_err(&pdev->dev, "failed to duplicate channels\n"); - return -ENOMEM; - } - - ret = prox_parse_report(pdev, hsdev, - (struct iio_chan_spec *)indio_dev->channels, - hsdev->usage, prox_state); + ret = prox_parse_report(pdev, hsdev, prox_state); if (ret) { dev_err(&pdev->dev, "failed to setup attributes\n"); return ret; } - indio_dev->num_channels = ARRAY_SIZE(prox_channels); + indio_dev->num_channels = prox_state->num_channels; + indio_dev->channels = prox_state->channels; + indio_dev->available_scan_masks = prox_state->scan_mask; indio_dev->info = &prox_info; indio_dev->name = name; indio_dev->modes = INDIO_DIRECT_MODE;