From patchwork Tue Jan 9 18:00:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srinivas Pandruvada X-Patchwork-Id: 761607 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DE67F3BB4C; Tue, 9 Jan 2024 18:00:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="drgB2zRV" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1704823222; x=1736359222; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=q1ovR6+O75gSajU4QJ+Ao6qPau2jMgalmF2X5drMR4I=; b=drgB2zRVjmXqL2vyEt4AwYvpIBX2cquGG9a0s//4YzDWwfTF1kfNzQ2x C6FY1lBkzlr+iC6TZbRZd92MSNSsoj9C0CBQB/tvQnPbrhd2ri4mYjAmw Z4d6WyOiW4J3K4ZKt0m+sPrWhzWCu2UkeziwlUPHGmMdeby+i3tG8HYfy jeVTUAhyPNmBJbT3VWhJKgAmijEJVK6iv4KYo5uRj19pESmrHvvAjGKlD o6YJfMKT6Y9toI61eB6AUtsqCAyL+04QlCUUtT03Pk4VPswHhTTLneE6V 2rIJWRpG2NJ7sRlCnLa2fofcZr1SZo0goQXWhL2PDp7ejSfTCLxHBikPm g==; X-IronPort-AV: E=McAfee;i="6600,9927,10947"; a="429458624" X-IronPort-AV: E=Sophos;i="6.04,183,1695711600"; d="scan'208";a="429458624" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jan 2024 10:00:19 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10947"; a="852269567" X-IronPort-AV: E=Sophos;i="6.04,183,1695711600"; d="scan'208";a="852269567" Received: from spandruv-desk.jf.intel.com ([10.54.75.14]) by fmsmga004.fm.intel.com with ESMTP; 09 Jan 2024 10:00:19 -0800 From: Srinivas Pandruvada To: jikos@kernel.org, jic23@kernel.org, lars@metafoo.de, Basavaraj.Natikar@amd.com Cc: linux-input@vger.kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Srinivas Pandruvada Subject: [PATCH v3 3/4] iio: hid-sensor-als: Add light color temperature support Date: Tue, 9 Jan 2024 10:00:06 -0800 Message-Id: <20240109180007.3373784-4-srinivas.pandruvada@linux.intel.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240109180007.3373784-1-srinivas.pandruvada@linux.intel.com> References: <20240109180007.3373784-1-srinivas.pandruvada@linux.intel.com> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Basavaraj Natikar On some platforms, ambient color sensors also support light color temperature. Add support of light color temperature. Signed-off-by: Basavaraj Natikar Signed-off-by: Srinivas Pandruvada --- I don't have a system to test this patch. Hi Basavraj, Please test. v3: Simplilified as no special processing is required in als_parse_report() v2: Original patch from Basavaraj Natikar is modified to prevent failure when the new usage id is not found in the descriptor. drivers/iio/light/hid-sensor-als.c | 22 ++++++++++++++++++++++ include/linux/hid-sensor-ids.h | 1 + 2 files changed, 23 insertions(+) diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c index a7bde6b68102..0d54eb59e47d 100644 --- a/drivers/iio/light/hid-sensor-als.c +++ b/drivers/iio/light/hid-sensor-als.c @@ -16,6 +16,7 @@ enum { CHANNEL_SCAN_INDEX_INTENSITY, CHANNEL_SCAN_INDEX_ILLUM, + CHANNEL_SCAN_INDEX_COLOR_TEMP, CHANNEL_SCAN_INDEX_MAX }; @@ -43,6 +44,7 @@ struct als_state { static const u32 als_usage_ids[] = { HID_USAGE_SENSOR_LIGHT_ILLUM, HID_USAGE_SENSOR_LIGHT_ILLUM, + HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE, }; static const u32 als_sensitivity_addresses[] = { @@ -74,6 +76,16 @@ static const struct iio_chan_spec als_channels[] = { BIT(IIO_CHAN_INFO_HYSTERESIS_RELATIVE), .scan_index = CHANNEL_SCAN_INDEX_ILLUM, }, + { + .type = IIO_COLORTEMP, + .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) | + BIT(IIO_CHAN_INFO_HYSTERESIS_RELATIVE), + .scan_index = CHANNEL_SCAN_INDEX_COLOR_TEMP, + }, IIO_CHAN_SOFT_TIMESTAMP(CHANNEL_SCAN_INDEX_TIMESTAMP) }; @@ -112,6 +124,11 @@ static int als_read_raw(struct iio_dev *indio_dev, min = als_state->als[chan->scan_index].logical_minimum; address = HID_USAGE_SENSOR_LIGHT_ILLUM; break; + case CHANNEL_SCAN_INDEX_COLOR_TEMP: + report_id = als_state->als[chan->scan_index].report_id; + min = als_state->als[chan->scan_index].logical_minimum; + address = HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE; + break; default: report_id = -1; break; @@ -235,6 +252,11 @@ static int als_capture_sample(struct hid_sensor_hub_device *hsdev, als_state->scan.illum[scan_index] = sample_data; ret = 0; break; + case HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE: + scan_index = als_state->scan.scan_index[CHANNEL_SCAN_INDEX_COLOR_TEMP]; + als_state->scan.illum[scan_index] = sample_data; + ret = 0; + break; case HID_USAGE_SENSOR_TIME_TIMESTAMP: als_state->timestamp = hid_sensor_convert_timestamp(&als_state->common_attributes, *(s64 *)raw_data); diff --git a/include/linux/hid-sensor-ids.h b/include/linux/hid-sensor-ids.h index 13b1e65fbdcc..8af4fb3e0254 100644 --- a/include/linux/hid-sensor-ids.h +++ b/include/linux/hid-sensor-ids.h @@ -21,6 +21,7 @@ #define HID_USAGE_SENSOR_ALS 0x200041 #define HID_USAGE_SENSOR_DATA_LIGHT 0x2004d0 #define HID_USAGE_SENSOR_LIGHT_ILLUM 0x2004d1 +#define HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE 0x2004d2 /* PROX (200011) */ #define HID_USAGE_SENSOR_PROX 0x200011