From patchwork Mon Dec 4 19:43:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Petre Rodan X-Patchwork-Id: 173546 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:bcd1:0:b0:403:3b70:6f57 with SMTP id r17csp2996707vqy; Mon, 4 Dec 2023 11:45:03 -0800 (PST) X-Google-Smtp-Source: AGHT+IHI2i39Xt1v438vKgSlkLwEZPSObdaQpGQ46FyW1bITZ6oADNMa89pwt+h83xSZDGBr58M6 X-Received: by 2002:a17:903:1246:b0:1d0:6ffd:e2cd with SMTP id u6-20020a170903124600b001d06ffde2cdmr4849142plh.103.1701719102821; Mon, 04 Dec 2023 11:45:02 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1701719102; cv=none; d=google.com; s=arc-20160816; b=vNmWSkym4NYyu4sPrI7XorxzKIZQK1LWR0KowjH66N1eIWiC/AI41kZx0zsrFYMoCi 2eUE9GckWKnRTirBRkw53WWijLgFLKz2tAX3ylNmQ26GQ3qQ40nb0aGDwwimmw2m4/kp 7Iw2gCUq/R18zCN9brWiS8zWaYdTyv8bkSekWwDMqNBY13ECthunJ8K9n3eYoyX4GSU9 qxE6JSf2aO0wcdskWSSODj6mTKmwoQZoqHY6YwyNiApV2tpwoOHnGhEl1W1QCrTFMGFS naekJvDImZhDL4twn3Dyjb1KOQWRXdkRxhvIAJRwnNo3jhX8rORZNGfRJgNfHgSbWcnD LjBg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from:dkim-signature; bh=MHWl+VXyue+9nuKOARjnQwVVMRoT8Ra6Y2tsdmySwbA=; fh=zlyZYcbLC6tZrczSEBtQNCGdfMf+lJoKou1Q6zDEWtE=; b=kBKczpones9G4O+trSNRqVE9Ume25uFKKC6V7X/ij0wmBwzkQtDCSgWYwPQCxCZT/i qAKHNSUJCdAxoDMa7LL1ohS8tI7EFYTFSbtiBBFZVWx2dVWmvXvGZiEvgc95lwQh0mKP vF5Hm9TTNThRvZ1a2ucAA1OXg70Zgizv3pmSX3y6kyKJfOJJ2hcyOo8Su2YS7r9CNiA5 Vvgip3EhtMmygthQoZhMYSxwtae5pShRwEdkQdKWw7fVKjlYb8ywjmUT7CQ7zLpVc2xS F8hgZqE7Ro7P0DRTdXZwBoiISV9ye3C20RbdhyF/mbQvCDZYuDFszb02KIZDQUNvfE5t kcCw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@subdimension.ro header.s=skycaves header.b=PxbftUAS; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:2 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=subdimension.ro Received: from agentk.vger.email (agentk.vger.email. [2620:137:e000::3:2]) by mx.google.com with ESMTPS id n5-20020a170902e54500b001d0a7201fe4si2012515plf.310.2023.12.04.11.45.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Dec 2023 11:45:02 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:2 as permitted sender) client-ip=2620:137:e000::3:2; Authentication-Results: mx.google.com; dkim=pass header.i=@subdimension.ro header.s=skycaves header.b=PxbftUAS; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:2 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=subdimension.ro Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by agentk.vger.email (Postfix) with ESMTP id C826280579A8; Mon, 4 Dec 2023 11:44:55 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at agentk.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232848AbjLDTor (ORCPT + 99 others); Mon, 4 Dec 2023 14:44:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57110 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229983AbjLDTop (ORCPT ); Mon, 4 Dec 2023 14:44:45 -0500 Received: from mail.subdimension.ro (unknown [IPv6:2a01:7e01:e001:1d1::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 60C43D2; Mon, 4 Dec 2023 11:44:50 -0800 (PST) Received: from localhost.localdomain (unknown [188.24.94.216]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mail.subdimension.ro (Postfix) with ESMTPSA id 988DB28EE6F; Mon, 4 Dec 2023 19:44:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=subdimension.ro; s=skycaves; t=1701719088; bh=4wanOrlQPS66tajSBgXdI4zLh7IC9z4XmP+kH99JeJ4=; h=From:To:Cc:Subject:Date; b=PxbftUAS7Qrd10Z2OmvOju2U1IuULuwOs6w4DO8ctxRNLYTz/M6NUDtIaYHzzdiNV AxdRSo7/X7NxNK/3mE3l7EOlQmsD5YBpGLtvlczAoNXiKfSvTaKQG2MLAzGgx1qu3E GngDIzTkhEgqZT2x226pyS4LMH6YHizpr9kuPXf0= From: Petre Rodan To: linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, devicetree@vger.kernel.org Cc: Petre Rodan , Conor Dooley , Lars-Peter Clausen , Rob Herring , linux-kernel-mentees@lists.linuxfoundation.org, Jonathan Cameron , Krzysztof Kozlowski Subject: [PATCH v7 1/2] dt-bindings: iio: pressure: add honeywell,hsc030 Date: Mon, 4 Dec 2023 21:43:58 +0200 Message-ID: <20231204194401.20891-1-petre.rodan@subdimension.ro> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Mon, 04 Dec 2023 11:44:56 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1784381809896232965 X-GMAIL-MSGID: 1784381809896232965 Adds binding for digital Honeywell TruStability HSC and SSC series pressure and temperature sensors. Communication is one way. The sensor only requires 4 bytes worth of clock pulses on both i2c and spi in order to push the data out. The i2c address is hardcoded and depends on the part number. There is no additional GPIO control. Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-hsc-series/documents/sps-siot-trustability-hsc-series-high-accuracy-board-mount-pressure-sensors-50099148-a-en-ciid-151133.pdf [HSC] Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-ssc-series/documents/sps-siot-trustability-ssc-series-standard-accuracy-board-mount-pressure-sensors-50099533-a-en-ciid-151134.pdf [SSC] Reviewed-by: Krzysztof Kozlowski Signed-off-by: Petre Rodan --- v2: - fix yaml struct - cleanup based on Krzysztof's review v3: - rename range_str -> honeywell,pressure-triplet to define the string containing the pressure range, measurement unit and type - honeywell,pmax-pascal becomes uint32 v4: - added enum to honeywell,transfer-function v5: - removed pmin-pascal, pmax-pascal $ref - added pmin-pascal, pmax-pascal constraints v6: - no change v7: - no change --- .../iio/pressure/honeywell,hsc030pa.yaml | 142 ++++++++++++++++++ 1 file changed, 142 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/pressure/honeywell,hsc030pa.yaml diff --git a/Documentation/devicetree/bindings/iio/pressure/honeywell,hsc030pa.yaml b/Documentation/devicetree/bindings/iio/pressure/honeywell,hsc030pa.yaml new file mode 100644 index 000000000000..65a24ed67b3c --- /dev/null +++ b/Documentation/devicetree/bindings/iio/pressure/honeywell,hsc030pa.yaml @@ -0,0 +1,142 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/pressure/honeywell,hsc030pa.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Honeywell TruStability HSC and SSC pressure sensor series + +description: | + support for Honeywell TruStability HSC and SSC digital pressure sensor + series. + + These sensors have either an I2C, an SPI or an analog interface. Only the + digital versions are supported by this driver. + + There are 118 models with different pressure ranges available in each family. + The vendor calls them "HSC series" and "SSC series". All of them have an + identical programming model but differ in pressure range, unit and transfer + function. + + To support different models one needs to specify the pressure range as well + as the transfer function. Pressure range can either be provided via + pressure-triplet (directly extracted from the part number) or in case it's + a custom chip via numerical range limits converted to pascals. + + The transfer function defines the ranges of raw conversion values delivered + by the sensor. pmin-pascal and pmax-pascal corespond to the minimum and + maximum pressure that can be measured. + + Please note that in case of an SPI-based sensor, the clock signal should not + exceed 800kHz and the MOSI signal is not required. + + Specifications about the devices can be found at: + https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-hsc-series/documents/sps-siot-trustability-hsc-series-high-accuracy-board-mount-pressure-sensors-50099148-a-en-ciid-151133.pdf + https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-ssc-series/documents/sps-siot-trustability-ssc-series-standard-accuracy-board-mount-pressure-sensors-50099533-a-en-ciid-151134.pdf + +maintainers: + - Petre Rodan + +properties: + compatible: + const: honeywell,hsc030pa + + reg: + maxItems: 1 + + honeywell,transfer-function: + description: | + Transfer function which defines the range of valid values delivered by + the sensor. + 0 - A, 10% to 90% of 2^14 + 1 - B, 5% to 95% of 2^14 + 2 - C, 5% to 85% of 2^14 + 3 - F, 4% to 94% of 2^14 + enum: [0, 1, 2, 3] + $ref: /schemas/types.yaml#/definitions/uint32 + + honeywell,pressure-triplet: + description: | + Case-sensitive five character string that defines pressure range, unit + and type as part of the device nomenclature. In the unlikely case of a + custom chip, set to "NA" and provide pmin-pascal and pmax-pascal. + enum: [001BA, 1.6BA, 2.5BA, 004BA, 006BA, 010BA, 1.6MD, 2.5MD, 004MD, + 006MD, 010MD, 016MD, 025MD, 040MD, 060MD, 100MD, 160MD, 250MD, + 400MD, 600MD, 001BD, 1.6BD, 2.5BD, 004BD, 2.5MG, 004MG, 006MG, + 010MG, 016MG, 025MG, 040MG, 060MG, 100MG, 160MG, 250MG, 400MG, + 600MG, 001BG, 1.6BG, 2.5BG, 004BG, 006BG, 010BG, 100KA, 160KA, + 250KA, 400KA, 600KA, 001GA, 160LD, 250LD, 400LD, 600LD, 001KD, + 1.6KD, 2.5KD, 004KD, 006KD, 010KD, 016KD, 025KD, 040KD, 060KD, + 100KD, 160KD, 250KD, 400KD, 250LG, 400LG, 600LG, 001KG, 1.6KG, + 2.5KG, 004KG, 006KG, 010KG, 016KG, 025KG, 040KG, 060KG, 100KG, + 160KG, 250KG, 400KG, 600KG, 001GG, 015PA, 030PA, 060PA, 100PA, + 150PA, 0.5ND, 001ND, 002ND, 004ND, 005ND, 010ND, 020ND, 030ND, + 001PD, 005PD, 015PD, 030PD, 060PD, 001NG, 002NG, 004NG, 005NG, + 010NG, 020NG, 030NG, 001PG, 005PG, 015PG, 030PG, 060PG, 100PG, + 150PG, NA] + $ref: /schemas/types.yaml#/definitions/string + + honeywell,pmin-pascal: + description: | + Minimum pressure value the sensor can measure in pascal. + To be specified only if honeywell,pressure-triplet is set to "NA". + + honeywell,pmax-pascal: + description: | + Maximum pressure value the sensor can measure in pascal. + To be specified only if honeywell,pressure-triplet is set to "NA". + + vdd-supply: + description: + Provide VDD power to the sensor (either 3.3V or 5V depending on the chip) + + spi-max-frequency: + maximum: 800000 + +required: + - compatible + - reg + - honeywell,transfer-function + - honeywell,pressure-triplet + +additionalProperties: false + +dependentSchemas: + honeywell,pmin-pascal: + properties: + honeywell,pressure-triplet: + const: NA + honeywell,pmax-pascal: + properties: + honeywell,pressure-triplet: + const: NA + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + pressure@28 { + compatible = "honeywell,hsc030pa"; + reg = <0x28>; + honeywell,transfer-function = <0>; + honeywell,pressure-triplet = "030PA"; + }; + }; + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + pressure@0 { + compatible = "honeywell,hsc030pa"; + reg = <0>; + spi-max-frequency = <800000>; + honeywell,transfer-function = <0>; + honeywell,pressure-triplet = "NA"; + honeywell,pmin-pascal = <0>; + honeywell,pmax-pascal = <200000>; + }; + }; +... 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[23.128.96.37]) by mx.google.com with ESMTPS id v13-20020a655c4d000000b005be264316d6si8026747pgr.598.2023.12.04.11.45.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Dec 2023 11:45:09 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) client-ip=23.128.96.37; Authentication-Results: mx.google.com; dkim=pass header.i=@subdimension.ro header.s=skycaves header.b=tkhllVb6; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=subdimension.ro Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id 513AA806CF4F; Mon, 4 Dec 2023 11:45:08 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233778AbjLDTo4 (ORCPT + 99 others); Mon, 4 Dec 2023 14:44:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54242 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233785AbjLDToy (ORCPT ); Mon, 4 Dec 2023 14:44:54 -0500 Received: from mail.subdimension.ro (unknown [IPv6:2a01:7e01:e001:1d1::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3A242CE; Mon, 4 Dec 2023 11:44:58 -0800 (PST) Received: from localhost.localdomain (unknown [188.24.94.216]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mail.subdimension.ro (Postfix) with ESMTPSA id 893C528F040; Mon, 4 Dec 2023 19:44:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=subdimension.ro; s=skycaves; t=1701719096; bh=S0Tv6Q3EchuyFLCRsahcAnT1aLn4SDrTZk7DcrfgXj0=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=tkhllVb6tu9fY2RWpZ/EwaJz0ttlpoIlp/qNXmfaecAUscqrXGZ/bJLhGr8i0hSs9 L/9iomdlGuFQh7nnXz76y/mDjKWtVT17jzlz/1cs86GmfsHaWyUto1i1ggKgJiWhns 0LNrAhHbYChVR7ccqWQnRz00IcJmpEdxuv7hyi7E= From: Petre Rodan To: linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org Cc: Petre Rodan , Jonathan Cameron , Lars-Peter Clausen , Andy Shevchenko , Angel Iglesias , Matti Vaittinen , Andreas Klinger , Rob Herring , Krzysztof Kozlowski Subject: [PATCH v7 2/2] iio: pressure: driver for Honeywell HSC/SSC series Date: Mon, 4 Dec 2023 21:43:59 +0200 Message-ID: <20231204194401.20891-2-petre.rodan@subdimension.ro> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231204194401.20891-1-petre.rodan@subdimension.ro> References: <20231204194401.20891-1-petre.rodan@subdimension.ro> MIME-Version: 1.0 X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED,RDNS_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Mon, 04 Dec 2023 11:45:08 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1784381817273031313 X-GMAIL-MSGID: 1784381817273031313 Adds driver for digital Honeywell TruStability HSC and SSC series pressure and temperature sensors. Communication is one way. The sensor only requires 4 bytes worth of clock pulses on both i2c and spi in order to push the data out. The i2c address is hardcoded and depends on the part number. There is no additional GPIO control. Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-hsc-series/documents/sps-siot-trustability-hsc-series-high-accuracy-board-mount-pressure-sensors-50099148-a-en-ciid-151133.pdf [HSC] Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-ssc-series/documents/sps-siot-trustability-ssc-series-standard-accuracy-board-mount-pressure-sensors-50099533-a-en-ciid-151134.pdf [SSC] Signed-off-by: Petre Rodan --- v2: - No change v3: huge cleanup based on Andy's review. Thanks! - fixed pressure offset calculation for differential sensors - rename driver from honeywell,hsc to honeywell,hsc030pa v4: modifications based on Jonathan Cameron's review. Thanks! - rename hsc_*_xfer() to hsc_*_recv() - struct style changes - bus driver only contains bus specific bits and bobs - add alignment for SPI buffer v5: modifications based on Andy's review - fix indentation - use function pointer typedef instead of explicit declaration v6: modifications based on Andy's review - use str_has_prefix(), match_string() instead of strncmp() v7: modifications based on Jonathan's review - hardcode iio_dev->name - pass struct device between common and bus drivers instead of bus client --- MAINTAINERS | 7 + drivers/iio/pressure/Kconfig | 22 ++ drivers/iio/pressure/Makefile | 3 + drivers/iio/pressure/hsc030pa.c | 494 ++++++++++++++++++++++++++++ drivers/iio/pressure/hsc030pa.h | 74 +++++ drivers/iio/pressure/hsc030pa_i2c.c | 69 ++++ drivers/iio/pressure/hsc030pa_spi.c | 61 ++++ 7 files changed, 730 insertions(+) create mode 100644 drivers/iio/pressure/hsc030pa.c create mode 100644 drivers/iio/pressure/hsc030pa.h create mode 100644 drivers/iio/pressure/hsc030pa_i2c.c create mode 100644 drivers/iio/pressure/hsc030pa_spi.c diff --git a/MAINTAINERS b/MAINTAINERS index 788be9ab5b73..4fa3478e1d15 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9701,6 +9701,13 @@ F: lib/test_hmm* F: mm/hmm* F: tools/testing/selftests/mm/*hmm* +HONEYWELL HSC030PA PRESSURE SENSOR SERIES IIO DRIVER +M: Petre Rodan +L: linux-iio@vger.kernel.org +S: Maintained +F: Documentation/devicetree/bindings/iio/pressure/honeywell,hsc030pa.yaml +F: drivers/iio/pressure/hsc030pa* + HONEYWELL MPRLS0025PA PRESSURE SENSOR SERIES IIO DRIVER M: Andreas Klinger L: linux-iio@vger.kernel.org diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig index 95efa32e4289..79adfd059c3a 100644 --- a/drivers/iio/pressure/Kconfig +++ b/drivers/iio/pressure/Kconfig @@ -109,6 +109,28 @@ config HP03 To compile this driver as a module, choose M here: the module will be called hp03. +config HSC030PA + tristate "Honeywell HSC/SSC TruStability pressure sensor series" + depends on (I2C || SPI_MASTER) + select HSC030PA_I2C if I2C + select HSC030PA_SPI if SPI_MASTER + help + Say Y here to build support for the Honeywell TruStability + HSC and SSC pressure and temperature sensor series. + + To compile this driver as a module, choose M here: the module + will be called hsc030pa. + +config HSC030PA_I2C + tristate + depends on HSC030PA + depends on I2C + +config HSC030PA_SPI + tristate + depends on HSC030PA + depends on SPI_MASTER + config ICP10100 tristate "InvenSense ICP-101xx pressure and temperature sensor" depends on I2C diff --git a/drivers/iio/pressure/Makefile b/drivers/iio/pressure/Makefile index 436aec7e65f3..b0f8b94662f2 100644 --- a/drivers/iio/pressure/Makefile +++ b/drivers/iio/pressure/Makefile @@ -15,6 +15,9 @@ obj-$(CONFIG_DPS310) += dps310.o obj-$(CONFIG_IIO_CROS_EC_BARO) += cros_ec_baro.o obj-$(CONFIG_HID_SENSOR_PRESS) += hid-sensor-press.o obj-$(CONFIG_HP03) += hp03.o +obj-$(CONFIG_HSC030PA) += hsc030pa.o +obj-$(CONFIG_HSC030PA_I2C) += hsc030pa_i2c.o +obj-$(CONFIG_HSC030PA_SPI) += hsc030pa_spi.o obj-$(CONFIG_ICP10100) += icp10100.o obj-$(CONFIG_MPL115) += mpl115.o obj-$(CONFIG_MPL115_I2C) += mpl115_i2c.o diff --git a/drivers/iio/pressure/hsc030pa.c b/drivers/iio/pressure/hsc030pa.c new file mode 100644 index 000000000000..1561ec4d4461 --- /dev/null +++ b/drivers/iio/pressure/hsc030pa.c @@ -0,0 +1,494 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Honeywell TruStability HSC Series pressure/temperature sensor + * + * Copyright (c) 2023 Petre Rodan + * + * Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-hsc-series/documents/sps-siot-trustability-hsc-series-high-accuracy-board-mount-pressure-sensors-50099148-a-en-ciid-151133.pdf + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include + +#include "hsc030pa.h" + +/* + * HSC_PRESSURE_TRIPLET_LEN - length for the string that defines the + * pressure range, measurement unit and type as per the part nomenclature. + * Consult honeywell,pressure-triplet in the bindings file for details. + */ +#define HSC_PRESSURE_TRIPLET_LEN 6 +#define HSC_STATUS_MASK GENMASK(7, 6) +#define HSC_TEMPERATURE_MASK GENMASK(15, 5) +#define HSC_PRESSURE_MASK GENMASK(29, 16) + +static const char hsc_iio_dev_name[] = "hsc030pa"; + +struct hsc_func_spec { + u32 output_min; + u32 output_max; +}; + +/* + * function A: 10% - 90% of 2^14 + * function B: 5% - 95% of 2^14 + * function C: 5% - 85% of 2^14 + * function F: 4% - 94% of 2^14 + */ +static const struct hsc_func_spec hsc_func_spec[] = { + [HSC_FUNCTION_A] = { .output_min = 1638, .output_max = 14746 }, + [HSC_FUNCTION_B] = { .output_min = 819, .output_max = 15565 }, + [HSC_FUNCTION_C] = { .output_min = 819, .output_max = 13926 }, + [HSC_FUNCTION_F] = { .output_min = 655, .output_max = 15401 }, +}; + +enum hsc_variants { + HSC001BA = 0x0, HSC1_6BA = 0x1, HSC2_5BA = 0x2, HSC004BA = 0x3, + HSC006BA = 0x4, HSC010BA = 0x5, HSC1_6MD = 0x6, HSC2_5MD = 0x7, + HSC004MD = 0x8, HSC006MD = 0x9, HSC010MD = 0xa, HSC016MD = 0xb, + HSC025MD = 0xc, HSC040MD = 0xd, HSC060MD = 0xe, HSC100MD = 0xf, + HSC160MD = 0x10, HSC250MD = 0x11, HSC400MD = 0x12, HSC600MD = 0x13, + HSC001BD = 0x14, HSC1_6BD = 0x15, HSC2_5BD = 0x16, HSC004BD = 0x17, + HSC2_5MG = 0x18, HSC004MG = 0x19, HSC006MG = 0x1a, HSC010MG = 0x1b, + HSC016MG = 0x1c, HSC025MG = 0x1d, HSC040MG = 0x1e, HSC060MG = 0x1f, + HSC100MG = 0x20, HSC160MG = 0x21, HSC250MG = 0x22, HSC400MG = 0x23, + HSC600MG = 0x24, HSC001BG = 0x25, HSC1_6BG = 0x26, HSC2_5BG = 0x27, + HSC004BG = 0x28, HSC006BG = 0x29, HSC010BG = 0x2a, HSC100KA = 0x2b, + HSC160KA = 0x2c, HSC250KA = 0x2d, HSC400KA = 0x2e, HSC600KA = 0x2f, + HSC001GA = 0x30, HSC160LD = 0x31, HSC250LD = 0x32, HSC400LD = 0x33, + HSC600LD = 0x34, HSC001KD = 0x35, HSC1_6KD = 0x36, HSC2_5KD = 0x37, + HSC004KD = 0x38, HSC006KD = 0x39, HSC010KD = 0x3a, HSC016KD = 0x3b, + HSC025KD = 0x3c, HSC040KD = 0x3d, HSC060KD = 0x3e, HSC100KD = 0x3f, + HSC160KD = 0x40, HSC250KD = 0x41, HSC400KD = 0x42, HSC250LG = 0x43, + HSC400LG = 0x44, HSC600LG = 0x45, HSC001KG = 0x46, HSC1_6KG = 0x47, + HSC2_5KG = 0x48, HSC004KG = 0x49, HSC006KG = 0x4a, HSC010KG = 0x4b, + HSC016KG = 0x4c, HSC025KG = 0x4d, HSC040KG = 0x4e, HSC060KG = 0x4f, + HSC100KG = 0x50, HSC160KG = 0x51, HSC250KG = 0x52, HSC400KG = 0x53, + HSC600KG = 0x54, HSC001GG = 0x55, HSC015PA = 0x56, HSC030PA = 0x57, + HSC060PA = 0x58, HSC100PA = 0x59, HSC150PA = 0x5a, HSC0_5ND = 0x5b, + HSC001ND = 0x5c, HSC002ND = 0x5d, HSC004ND = 0x5e, HSC005ND = 0x5f, + HSC010ND = 0x60, HSC020ND = 0x61, HSC030ND = 0x62, HSC001PD = 0x63, + HSC005PD = 0x64, HSC015PD = 0x65, HSC030PD = 0x66, HSC060PD = 0x67, + HSC001NG = 0x68, HSC002NG = 0x69, HSC004NG = 0x6a, HSC005NG = 0x6b, + HSC010NG = 0x6c, HSC020NG = 0x6d, HSC030NG = 0x6e, HSC001PG = 0x6f, + HSC005PG = 0x70, HSC015PG = 0x71, HSC030PG = 0x72, HSC060PG = 0x73, + HSC100PG = 0x74, HSC150PG = 0x75, HSC_VARIANTS_MAX +}; + +static const char * const hsc_triplet_variants[HSC_VARIANTS_MAX] = { + [HSC001BA] = "001BA", [HSC1_6BA] = "1.6BA", [HSC2_5BA] = "2.5BA", + [HSC004BA] = "004BA", [HSC006BA] = "006BA", [HSC010BA] = "010BA", + [HSC1_6MD] = "1.6MD", [HSC2_5MD] = "2.5MD", [HSC004MD] = "004MD", + [HSC006MD] = "006MD", [HSC010MD] = "010MD", [HSC016MD] = "016MD", + [HSC025MD] = "025MD", [HSC040MD] = "040MD", [HSC060MD] = "060MD", + [HSC100MD] = "100MD", [HSC160MD] = "160MD", [HSC250MD] = "250MD", + [HSC400MD] = "400MD", [HSC600MD] = "600MD", [HSC001BD] = "001BD", + [HSC1_6BD] = "1.6BD", [HSC2_5BD] = "2.5BD", [HSC004BD] = "004BD", + [HSC2_5MG] = "2.5MG", [HSC004MG] = "004MG", [HSC006MG] = "006MG", + [HSC010MG] = "010MG", [HSC016MG] = "016MG", [HSC025MG] = "025MG", + [HSC040MG] = "040MG", [HSC060MG] = "060MG", [HSC100MG] = "100MG", + [HSC160MG] = "160MG", [HSC250MG] = "250MG", [HSC400MG] = "400MG", + [HSC600MG] = "600MG", [HSC001BG] = "001BG", [HSC1_6BG] = "1.6BG", + [HSC2_5BG] = "2.5BG", [HSC004BG] = "004BG", [HSC006BG] = "006BG", + [HSC010BG] = "010BG", [HSC100KA] = "100KA", [HSC160KA] = "160KA", + [HSC250KA] = "250KA", [HSC400KA] = "400KA", [HSC600KA] = "600KA", + [HSC001GA] = "001GA", [HSC160LD] = "160LD", [HSC250LD] = "250LD", + [HSC400LD] = "400LD", [HSC600LD] = "600LD", [HSC001KD] = "001KD", + [HSC1_6KD] = "1.6KD", [HSC2_5KD] = "2.5KD", [HSC004KD] = "004KD", + [HSC006KD] = "006KD", [HSC010KD] = "010KD", [HSC016KD] = "016KD", + [HSC025KD] = "025KD", [HSC040KD] = "040KD", [HSC060KD] = "060KD", + [HSC100KD] = "100KD", [HSC160KD] = "160KD", [HSC250KD] = "250KD", + [HSC400KD] = "400KD", [HSC250LG] = "250LG", [HSC400LG] = "400LG", + [HSC600LG] = "600LG", [HSC001KG] = "001KG", [HSC1_6KG] = "1.6KG", + [HSC2_5KG] = "2.5KG", [HSC004KG] = "004KG", [HSC006KG] = "006KG", + [HSC010KG] = "010KG", [HSC016KG] = "016KG", [HSC025KG] = "025KG", + [HSC040KG] = "040KG", [HSC060KG] = "060KG", [HSC100KG] = "100KG", + [HSC160KG] = "160KG", [HSC250KG] = "250KG", [HSC400KG] = "400KG", + [HSC600KG] = "600KG", [HSC001GG] = "001GG", [HSC015PA] = "015PA", + [HSC030PA] = "030PA", [HSC060PA] = "060PA", [HSC100PA] = "100PA", + [HSC150PA] = "150PA", [HSC0_5ND] = "0.5ND", [HSC001ND] = "001ND", + [HSC002ND] = "002ND", [HSC004ND] = "004ND", [HSC005ND] = "005ND", + [HSC010ND] = "010ND", [HSC020ND] = "020ND", [HSC030ND] = "030ND", + [HSC001PD] = "001PD", [HSC005PD] = "005PD", [HSC015PD] = "015PD", + [HSC030PD] = "030PD", [HSC060PD] = "060PD", [HSC001NG] = "001NG", + [HSC002NG] = "002NG", [HSC004NG] = "004NG", [HSC005NG] = "005NG", + [HSC010NG] = "010NG", [HSC020NG] = "020NG", [HSC030NG] = "030NG", + [HSC001PG] = "001PG", [HSC005PG] = "005PG", [HSC015PG] = "015PG", + [HSC030PG] = "030PG", [HSC060PG] = "060PG", [HSC100PG] = "100PG", + [HSC150PG] = "150PG", +}; + +/** + * struct hsc_range_config - list of pressure ranges based on nomenclature + * @pmin: lowest pressure that can be measured + * @pmax: highest pressure that can be measured + */ +struct hsc_range_config { + const s32 pmin; + const s32 pmax; +}; + +/* All min max limits have been converted to pascals */ +static const struct hsc_range_config hsc_range_config[HSC_VARIANTS_MAX] = { + [HSC001BA] = { .pmin = 0, .pmax = 100000 }, + [HSC1_6BA] = { .pmin = 0, .pmax = 160000 }, + [HSC2_5BA] = { .pmin = 0, .pmax = 250000 }, + [HSC004BA] = { .pmin = 0, .pmax = 400000 }, + [HSC006BA] = { .pmin = 0, .pmax = 600000 }, + [HSC010BA] = { .pmin = 0, .pmax = 1000000 }, + [HSC1_6MD] = { .pmin = -160, .pmax = 160 }, + [HSC2_5MD] = { .pmin = -250, .pmax = 250 }, + [HSC004MD] = { .pmin = -400, .pmax = 400 }, + [HSC006MD] = { .pmin = -600, .pmax = 600 }, + [HSC010MD] = { .pmin = -1000, .pmax = 1000 }, + [HSC016MD] = { .pmin = -1600, .pmax = 1600 }, + [HSC025MD] = { .pmin = -2500, .pmax = 2500 }, + [HSC040MD] = { .pmin = -4000, .pmax = 4000 }, + [HSC060MD] = { .pmin = -6000, .pmax = 6000 }, + [HSC100MD] = { .pmin = -10000, .pmax = 10000 }, + [HSC160MD] = { .pmin = -16000, .pmax = 16000 }, + [HSC250MD] = { .pmin = -25000, .pmax = 25000 }, + [HSC400MD] = { .pmin = -40000, .pmax = 40000 }, + [HSC600MD] = { .pmin = -60000, .pmax = 60000 }, + [HSC001BD] = { .pmin = -100000, .pmax = 100000 }, + [HSC1_6BD] = { .pmin = -160000, .pmax = 160000 }, + [HSC2_5BD] = { .pmin = -250000, .pmax = 250000 }, + [HSC004BD] = { .pmin = -400000, .pmax = 400000 }, + [HSC2_5MG] = { .pmin = 0, .pmax = 250 }, + [HSC004MG] = { .pmin = 0, .pmax = 400 }, + [HSC006MG] = { .pmin = 0, .pmax = 600 }, + [HSC010MG] = { .pmin = 0, .pmax = 1000 }, + [HSC016MG] = { .pmin = 0, .pmax = 1600 }, + [HSC025MG] = { .pmin = 0, .pmax = 2500 }, + [HSC040MG] = { .pmin = 0, .pmax = 4000 }, + [HSC060MG] = { .pmin = 0, .pmax = 6000 }, + [HSC100MG] = { .pmin = 0, .pmax = 10000 }, + [HSC160MG] = { .pmin = 0, .pmax = 16000 }, + [HSC250MG] = { .pmin = 0, .pmax = 25000 }, + [HSC400MG] = { .pmin = 0, .pmax = 40000 }, + [HSC600MG] = { .pmin = 0, .pmax = 60000 }, + [HSC001BG] = { .pmin = 0, .pmax = 100000 }, + [HSC1_6BG] = { .pmin = 0, .pmax = 160000 }, + [HSC2_5BG] = { .pmin = 0, .pmax = 250000 }, + [HSC004BG] = { .pmin = 0, .pmax = 400000 }, + [HSC006BG] = { .pmin = 0, .pmax = 600000 }, + [HSC010BG] = { .pmin = 0, .pmax = 1000000 }, + [HSC100KA] = { .pmin = 0, .pmax = 100000 }, + [HSC160KA] = { .pmin = 0, .pmax = 160000 }, + [HSC250KA] = { .pmin = 0, .pmax = 250000 }, + [HSC400KA] = { .pmin = 0, .pmax = 400000 }, + [HSC600KA] = { .pmin = 0, .pmax = 600000 }, + [HSC001GA] = { .pmin = 0, .pmax = 1000000 }, + [HSC160LD] = { .pmin = -160, .pmax = 160 }, + [HSC250LD] = { .pmin = -250, .pmax = 250 }, + [HSC400LD] = { .pmin = -400, .pmax = 400 }, + [HSC600LD] = { .pmin = -600, .pmax = 600 }, + [HSC001KD] = { .pmin = -1000, .pmax = 1000 }, + [HSC1_6KD] = { .pmin = -1600, .pmax = 1600 }, + [HSC2_5KD] = { .pmin = -2500, .pmax = 2500 }, + [HSC004KD] = { .pmin = -4000, .pmax = 4000 }, + [HSC006KD] = { .pmin = -6000, .pmax = 6000 }, + [HSC010KD] = { .pmin = -10000, .pmax = 10000 }, + [HSC016KD] = { .pmin = -16000, .pmax = 16000 }, + [HSC025KD] = { .pmin = -25000, .pmax = 25000 }, + [HSC040KD] = { .pmin = -40000, .pmax = 40000 }, + [HSC060KD] = { .pmin = -60000, .pmax = 60000 }, + [HSC100KD] = { .pmin = -100000, .pmax = 100000 }, + [HSC160KD] = { .pmin = -160000, .pmax = 160000 }, + [HSC250KD] = { .pmin = -250000, .pmax = 250000 }, + [HSC400KD] = { .pmin = -400000, .pmax = 400000 }, + [HSC250LG] = { .pmin = 0, .pmax = 250 }, + [HSC400LG] = { .pmin = 0, .pmax = 400 }, + [HSC600LG] = { .pmin = 0, .pmax = 600 }, + [HSC001KG] = { .pmin = 0, .pmax = 1000 }, + [HSC1_6KG] = { .pmin = 0, .pmax = 1600 }, + [HSC2_5KG] = { .pmin = 0, .pmax = 2500 }, + [HSC004KG] = { .pmin = 0, .pmax = 4000 }, + [HSC006KG] = { .pmin = 0, .pmax = 6000 }, + [HSC010KG] = { .pmin = 0, .pmax = 10000 }, + [HSC016KG] = { .pmin = 0, .pmax = 16000 }, + [HSC025KG] = { .pmin = 0, .pmax = 25000 }, + [HSC040KG] = { .pmin = 0, .pmax = 40000 }, + [HSC060KG] = { .pmin = 0, .pmax = 60000 }, + [HSC100KG] = { .pmin = 0, .pmax = 100000 }, + [HSC160KG] = { .pmin = 0, .pmax = 160000 }, + [HSC250KG] = { .pmin = 0, .pmax = 250000 }, + [HSC400KG] = { .pmin = 0, .pmax = 400000 }, + [HSC600KG] = { .pmin = 0, .pmax = 600000 }, + [HSC001GG] = { .pmin = 0, .pmax = 1000000 }, + [HSC015PA] = { .pmin = 0, .pmax = 103421 }, + [HSC030PA] = { .pmin = 0, .pmax = 206843 }, + [HSC060PA] = { .pmin = 0, .pmax = 413685 }, + [HSC100PA] = { .pmin = 0, .pmax = 689476 }, + [HSC150PA] = { .pmin = 0, .pmax = 1034214 }, + [HSC0_5ND] = { .pmin = -125, .pmax = 125 }, + [HSC001ND] = { .pmin = -249, .pmax = 249 }, + [HSC002ND] = { .pmin = -498, .pmax = 498 }, + [HSC004ND] = { .pmin = -996, .pmax = 996 }, + [HSC005ND] = { .pmin = -1245, .pmax = 1245 }, + [HSC010ND] = { .pmin = -2491, .pmax = 2491 }, + [HSC020ND] = { .pmin = -4982, .pmax = 4982 }, + [HSC030ND] = { .pmin = -7473, .pmax = 7473 }, + [HSC001PD] = { .pmin = -6895, .pmax = 6895 }, + [HSC005PD] = { .pmin = -34474, .pmax = 34474 }, + [HSC015PD] = { .pmin = -103421, .pmax = 103421 }, + [HSC030PD] = { .pmin = -206843, .pmax = 206843 }, + [HSC060PD] = { .pmin = -413685, .pmax = 413685 }, + [HSC001NG] = { .pmin = 0, .pmax = 249 }, + [HSC002NG] = { .pmin = 0, .pmax = 498 }, + [HSC004NG] = { .pmin = 0, .pmax = 996 }, + [HSC005NG] = { .pmin = 0, .pmax = 1245 }, + [HSC010NG] = { .pmin = 0, .pmax = 2491 }, + [HSC020NG] = { .pmin = 0, .pmax = 4982 }, + [HSC030NG] = { .pmin = 0, .pmax = 7473 }, + [HSC001PG] = { .pmin = 0, .pmax = 6895 }, + [HSC005PG] = { .pmin = 0, .pmax = 34474 }, + [HSC015PG] = { .pmin = 0, .pmax = 103421 }, + [HSC030PG] = { .pmin = 0, .pmax = 206843 }, + [HSC060PG] = { .pmin = 0, .pmax = 413685 }, + [HSC100PG] = { .pmin = 0, .pmax = 689476 }, + [HSC150PG] = { .pmin = 0, .pmax = 1034214 }, +}; + +/* + * hsc_measurement_is_valid() - validate last conversion via status bits + * @data: structure containing instantiated sensor data + * Return: true only if both status bits are zero + * + * the two MSB from the first transfered byte contain a status code + * 00 - normal operation, valid data + * 01 - device in factory programming mode + * 10 - stale data + * 11 - diagnostic condition + */ +static bool hsc_measurement_is_valid(struct hsc_data *data) +{ + return !(data->buffer[0] & HSC_STATUS_MASK); +} + +static int hsc_get_measurement(struct hsc_data *data) +{ + const struct hsc_chip_data *chip = data->chip; + int ret; + + ret = data->recv_cb(data); + if (ret < 0) + return ret; + + data->is_valid = chip->valid(data); + if (!data->is_valid) + return -EAGAIN; + + return 0; +} + +/* + * IIO ABI expects + * value = (conv + offset) * scale + * + * datasheet provides the following formula for determining the temperature + * temp[C] = conv * a + b + * where a = 200/2047; b = -50 + * + * temp[C] = (conv + (b/a)) * a * (1000) + * => + * scale = a * 1000 = .097703957 * 1000 = 97.703957 + * offset = b/a = -50 / .097703957 = -50000000 / 97704 + * + * based on the datasheet + * pressure = (conv - Omin) * Q + Pmin = + * ((conv - Omin) + Pmin/Q) * Q + * => + * scale = Q = (Pmax - Pmin) / (Omax - Omin) + * offset = Pmin/Q - Omin = Pmin * (Omax - Omin) / (Pmax - Pmin) - Omin + */ +static int hsc_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *channel, int *val, + int *val2, long mask) +{ + struct hsc_data *data = iio_priv(indio_dev); + int ret; + u32 recvd; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = hsc_get_measurement(data); + if (ret) + return ret; + + recvd = get_unaligned_be32(data->buffer); + switch (channel->type) { + case IIO_PRESSURE: + *val = FIELD_GET(HSC_PRESSURE_MASK, recvd); + return IIO_VAL_INT; + case IIO_TEMP: + *val = FIELD_GET(HSC_TEMPERATURE_MASK, recvd); + return IIO_VAL_INT; + default: + return -EINVAL; + } + + case IIO_CHAN_INFO_SCALE: + switch (channel->type) { + case IIO_TEMP: + *val = 97; + *val2 = 703957; + return IIO_VAL_INT_PLUS_MICRO; + case IIO_PRESSURE: + *val = data->p_scale; + *val2 = data->p_scale_dec; + return IIO_VAL_INT_PLUS_NANO; + default: + return -EINVAL; + } + + case IIO_CHAN_INFO_OFFSET: + switch (channel->type) { + case IIO_TEMP: + *val = -50000000; + *val2 = 97704; + return IIO_VAL_FRACTIONAL; + case IIO_PRESSURE: + *val = data->p_offset; + *val2 = data->p_offset_dec; + return IIO_VAL_INT_PLUS_MICRO; + default: + return -EINVAL; + } + + default: + return -EINVAL; + } +} + +static const struct iio_chan_spec hsc_channels[] = { + { + .type = IIO_PRESSURE, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_OFFSET), + }, + { + .type = IIO_TEMP, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_OFFSET), + }, +}; + +static const struct iio_info hsc_info = { + .read_raw = hsc_read_raw, +}; + +static const struct hsc_chip_data hsc_chip = { + .valid = hsc_measurement_is_valid, + .channels = hsc_channels, + .num_channels = ARRAY_SIZE(hsc_channels), +}; + +int hsc_common_probe(struct device *dev, hsc_recv_fn recv) +{ + struct hsc_data *hsc; + struct iio_dev *indio_dev; + const char *triplet; + u64 tmp; + int ret; + + indio_dev = devm_iio_device_alloc(dev, sizeof(*hsc)); + if (!indio_dev) + return -ENOMEM; + + hsc = iio_priv(indio_dev); + + hsc->chip = &hsc_chip; + hsc->recv_cb = recv; + hsc->dev = dev; + + ret = device_property_read_u32(dev, "honeywell,transfer-function", + &hsc->function); + if (ret) + return dev_err_probe(dev, ret, + "honeywell,transfer-function could not be read\n"); + if (hsc->function > HSC_FUNCTION_F) + return dev_err_probe(dev, -EINVAL, + "honeywell,transfer-function %d invalid\n", + hsc->function); + + ret = device_property_read_string(dev, "honeywell,pressure-triplet", + &triplet); + if (ret) + return dev_err_probe(dev, ret, + "honeywell,pressure-triplet could not be read\n"); + + if (str_has_prefix(triplet, "NA")) { + ret = device_property_read_u32(dev, "honeywell,pmin-pascal", + &hsc->pmin); + if (ret) + return dev_err_probe(dev, ret, + "honeywell,pmin-pascal could not be read\n"); + + ret = device_property_read_u32(dev, "honeywell,pmax-pascal", + &hsc->pmax); + if (ret) + return dev_err_probe(dev, ret, + "honeywell,pmax-pascal could not be read\n"); + } else { + ret = match_string(hsc_triplet_variants, HSC_VARIANTS_MAX, + triplet); + if (ret < 0) + return dev_err_probe(dev, -EINVAL, + "honeywell,pressure-triplet is invalid\n"); + + hsc->pmin = hsc_range_config[ret].pmin; + hsc->pmax = hsc_range_config[ret].pmax; + } + + if (hsc->pmin >= hsc->pmax) + return dev_err_probe(dev, -EINVAL, + "pressure limits are invalid\n"); + + ret = devm_regulator_get_enable(dev, "vdd"); + if (ret) + return dev_err_probe(dev, ret, "can't get vdd supply\n"); + + hsc->outmin = hsc_func_spec[hsc->function].output_min; + hsc->outmax = hsc_func_spec[hsc->function].output_max; + + tmp = div_s64(((s64)(hsc->pmax - hsc->pmin)) * MICRO, + hsc->outmax - hsc->outmin); + hsc->p_scale = div_s64_rem(tmp, NANO, &hsc->p_scale_dec); + tmp = div_s64(((s64)hsc->pmin * (s64)(hsc->outmax - hsc->outmin)) * MICRO, + hsc->pmax - hsc->pmin); + tmp -= (s64)hsc->outmin * MICRO; + hsc->p_offset = div_s64_rem(tmp, MICRO, &hsc->p_offset_dec); + + indio_dev->name = hsc_iio_dev_name; + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->info = &hsc_info; + indio_dev->channels = hsc->chip->channels; + indio_dev->num_channels = hsc->chip->num_channels; + + return devm_iio_device_register(dev, indio_dev); +} +EXPORT_SYMBOL_NS(hsc_common_probe, IIO_HONEYWELL_HSC030PA); + +MODULE_AUTHOR("Petre Rodan "); +MODULE_DESCRIPTION("Honeywell HSC and SSC pressure sensor core driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/iio/pressure/hsc030pa.h b/drivers/iio/pressure/hsc030pa.h new file mode 100644 index 000000000000..d20420dba4f6 --- /dev/null +++ b/drivers/iio/pressure/hsc030pa.h @@ -0,0 +1,74 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Honeywell TruStability HSC Series pressure/temperature sensor + * + * Copyright (c) 2023 Petre Rodan + */ + +#ifndef _HSC030PA_H +#define _HSC030PA_H + +#include + +#define HSC_REG_MEASUREMENT_RD_SIZE 4 + +struct device; + +struct iio_chan_spec; +struct iio_dev; + +struct hsc_data; +struct hsc_chip_data; + +typedef int (*hsc_recv_fn)(struct hsc_data *); + +/** + * struct hsc_data + * @dev: current device structure + * @chip: structure containing chip's channel properties + * @recv_cb: function that implements the chip reads + * @is_valid: true if last transfer has been validated + * @pmin: minimum measurable pressure limit + * @pmax: maximum measurable pressure limit + * @outmin: minimum raw pressure in counts (based on transfer function) + * @outmax: maximum raw pressure in counts (based on transfer function) + * @function: transfer function + * @p_scale: pressure scale + * @p_scale_dec: pressure scale, decimal places + * @p_offset: pressure offset + * @p_offset_dec: pressure offset, decimal places + * @buffer: raw conversion data + */ +struct hsc_data { + struct device *dev; + const struct hsc_chip_data *chip; + hsc_recv_fn recv_cb; + bool is_valid; + s32 pmin; + s32 pmax; + u32 outmin; + u32 outmax; + u32 function; + s64 p_scale; + s32 p_scale_dec; + s64 p_offset; + s32 p_offset_dec; + u8 buffer[HSC_REG_MEASUREMENT_RD_SIZE] __aligned(IIO_DMA_MINALIGN); +}; + +struct hsc_chip_data { + bool (*valid)(struct hsc_data *data); + const struct iio_chan_spec *channels; + u8 num_channels; +}; + +enum hsc_func_id { + HSC_FUNCTION_A, + HSC_FUNCTION_B, + HSC_FUNCTION_C, + HSC_FUNCTION_F, +}; + +int hsc_common_probe(struct device *dev, hsc_recv_fn recv); + +#endif diff --git a/drivers/iio/pressure/hsc030pa_i2c.c b/drivers/iio/pressure/hsc030pa_i2c.c new file mode 100644 index 000000000000..e2b524b36417 --- /dev/null +++ b/drivers/iio/pressure/hsc030pa_i2c.c @@ -0,0 +1,69 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Honeywell TruStability HSC Series pressure/temperature sensor + * + * Copyright (c) 2023 Petre Rodan + * + * Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-hsc-series/documents/sps-siot-trustability-hsc-series-high-accuracy-board-mount-pressure-sensors-50099148-a-en-ciid-151133.pdf [hsc] + * Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/common/documents/sps-siot-i2c-comms-digital-output-pressure-sensors-tn-008201-3-en-ciid-45841.pdf [i2c related] + */ + +#include +#include +#include +#include + +#include + +#include "hsc030pa.h" + +static int hsc_i2c_recv(struct hsc_data *data) +{ + struct i2c_client *client = to_i2c_client(data->dev); + struct i2c_msg msg; + int ret; + + msg.addr = client->addr; + msg.flags = client->flags | I2C_M_RD; + msg.len = HSC_REG_MEASUREMENT_RD_SIZE; + msg.buf = data->buffer; + + ret = i2c_transfer(client->adapter, &msg, 1); + + return (ret == 2) ? 0 : ret; +} + +static int hsc_i2c_probe(struct i2c_client *client) +{ + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) + return -EOPNOTSUPP; + + return hsc_common_probe(&client->dev, hsc_i2c_recv); +} + +static const struct of_device_id hsc_i2c_match[] = { + { .compatible = "honeywell,hsc030pa" }, + {} +}; +MODULE_DEVICE_TABLE(of, hsc_i2c_match); + +static const struct i2c_device_id hsc_i2c_id[] = { + { "hsc030pa" }, + {} +}; +MODULE_DEVICE_TABLE(i2c, hsc_i2c_id); + +static struct i2c_driver hsc_i2c_driver = { + .driver = { + .name = "hsc030pa", + .of_match_table = hsc_i2c_match, + }, + .probe = hsc_i2c_probe, + .id_table = hsc_i2c_id, +}; +module_i2c_driver(hsc_i2c_driver); + +MODULE_AUTHOR("Petre Rodan "); +MODULE_DESCRIPTION("Honeywell HSC and SSC pressure sensor i2c driver"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(IIO_HONEYWELL_HSC030PA); diff --git a/drivers/iio/pressure/hsc030pa_spi.c b/drivers/iio/pressure/hsc030pa_spi.c new file mode 100644 index 000000000000..a719bade8326 --- /dev/null +++ b/drivers/iio/pressure/hsc030pa_spi.c @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Honeywell TruStability HSC Series pressure/temperature sensor + * + * Copyright (c) 2023 Petre Rodan + * + * Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-hsc-series/documents/sps-siot-trustability-hsc-series-high-accuracy-board-mount-pressure-sensors-50099148-a-en-ciid-151133.pdf + */ + +#include +#include +#include +#include + +#include + +#include "hsc030pa.h" + +static int hsc_spi_recv(struct hsc_data *data) +{ + struct spi_device *spi = to_spi_device(data->dev); + struct spi_transfer xfer = { + .tx_buf = NULL, + .rx_buf = data->buffer, + .len = HSC_REG_MEASUREMENT_RD_SIZE, + }; + + return spi_sync_transfer(spi, &xfer, 1); +} + +static int hsc_spi_probe(struct spi_device *spi) +{ + return hsc_common_probe(&spi->dev, hsc_spi_recv); +} + +static const struct of_device_id hsc_spi_match[] = { + { .compatible = "honeywell,hsc030pa" }, + {} +}; +MODULE_DEVICE_TABLE(of, hsc_spi_match); + +static const struct spi_device_id hsc_spi_id[] = { + { "hsc030pa" }, + {} +}; +MODULE_DEVICE_TABLE(spi, hsc_spi_id); + +static struct spi_driver hsc_spi_driver = { + .driver = { + .name = "hsc030pa", + .of_match_table = hsc_spi_match, + }, + .probe = hsc_spi_probe, + .id_table = hsc_spi_id, +}; +module_spi_driver(hsc_spi_driver); + +MODULE_AUTHOR("Petre Rodan "); +MODULE_DESCRIPTION("Honeywell HSC and SSC pressure sensor spi driver"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(IIO_HONEYWELL_HSC030PA);