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Fri, 14 Feb 2025 08:20:08 -0500 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBMBX8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Fri, 14 Feb 2025 08:20:08 -0500 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.2.986.14 via Frontend Transport; Fri, 14 Feb 2025 08:20:08 -0500 Received: from amiclaus-VirtualBox.ad.analog.com (AMICLAUS-L02.ad.analog.com [10.48.65.172]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 51EDJuUR020604; Fri, 14 Feb 2025 08:20:02 -0500 From: Antoniu Miclaus To: , , , , , , CC: Antoniu Miclaus , Nuno Sa , David Lechner Subject: [PATCH v13 1/9] iio: backend: add API for interface get Date: Fri, 14 Feb 2025 15:19:47 +0200 Message-ID: <20250214131955.31973-2-antoniu.miclaus@analog.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250214131955.31973-1-antoniu.miclaus@analog.com> References: <20250214131955.31973-1-antoniu.miclaus@analog.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Authority-Analysis: v=2.4 cv=PZcFhjhd c=1 sm=1 tr=0 ts=67af430a cx=c_pps a=3WNzaoukacrqR9RwcOSAdA==:117 a=3WNzaoukacrqR9RwcOSAdA==:17 a=T2h4t0Lz3GQA:10 a=gAnH3GRIAAAA:8 a=IpJZQVW2AAAA:8 a=tuWBB0tbXFTZP7NtKowA:9 a=oVHKYsEdi7-vN-J5QA_j:22 a=IawgGOuG5U0WyFbmm1f5:22 X-Proofpoint-GUID: JVCwh4IZee_t5-j1wORARDPxeh42fuc8 X-Proofpoint-ORIG-GUID: JVCwh4IZee_t5-j1wORARDPxeh42fuc8 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-14_05,2025-02-13_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxlogscore=999 spamscore=0 suspectscore=0 impostorscore=0 clxscore=1015 mlxscore=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0 malwarescore=0 adultscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2501170000 definitions=main-2502140097 Add backend support for obtaining the interface type used. Reviewed-by: Nuno Sa Reviewed-by: David Lechner Signed-off-by: Antoniu Miclaus --- no changes in v13. drivers/iio/industrialio-backend.c | 24 ++++++++++++++++++++++++ include/linux/iio/backend.h | 11 +++++++++++ 2 files changed, 35 insertions(+) diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-backend.c index 363281272035..8bf3d570da1b 100644 --- a/drivers/iio/industrialio-backend.c +++ b/drivers/iio/industrialio-backend.c @@ -636,6 +636,30 @@ ssize_t iio_backend_ext_info_set(struct iio_dev *indio_dev, uintptr_t private, } EXPORT_SYMBOL_NS_GPL(iio_backend_ext_info_set, "IIO_BACKEND"); +/** + * iio_backend_interface_type_get - get the interface type used. + * @back: Backend device + * @type: Interface type + * + * RETURNS: + * 0 on success, negative error number on failure. + */ +int iio_backend_interface_type_get(struct iio_backend *back, + enum iio_backend_interface_type *type) +{ + int ret; + + ret = iio_backend_op_call(back, interface_type_get, type); + if (ret) + return ret; + + if (*type >= IIO_BACKEND_INTERFACE_MAX) + return -EINVAL; + + return 0; +} +EXPORT_SYMBOL_NS_GPL(iio_backend_interface_type_get, "IIO_BACKEND"); + /** * iio_backend_extend_chan_spec - Extend an IIO channel * @back: Backend device diff --git a/include/linux/iio/backend.h b/include/linux/iio/backend.h index 10be00f3b120..a0ea6c29d7ba 100644 --- a/include/linux/iio/backend.h +++ b/include/linux/iio/backend.h @@ -70,6 +70,12 @@ enum iio_backend_sample_trigger { IIO_BACKEND_SAMPLE_TRIGGER_MAX }; +enum iio_backend_interface_type { + IIO_BACKEND_INTERFACE_SERIAL_LVDS, + IIO_BACKEND_INTERFACE_SERIAL_CMOS, + IIO_BACKEND_INTERFACE_MAX +}; + /** * struct iio_backend_ops - operations structure for an iio_backend * @enable: Enable backend. @@ -88,6 +94,7 @@ enum iio_backend_sample_trigger { * @extend_chan_spec: Extend an IIO channel. * @ext_info_set: Extended info setter. * @ext_info_get: Extended info getter. + * @interface_type_get: Interface type. * @read_raw: Read a channel attribute from a backend device * @debugfs_print_chan_status: Print channel status into a buffer. * @debugfs_reg_access: Read or write register value of backend. @@ -128,6 +135,8 @@ struct iio_backend_ops { const char *buf, size_t len); int (*ext_info_get)(struct iio_backend *back, uintptr_t private, const struct iio_chan_spec *chan, char *buf); + int (*interface_type_get)(struct iio_backend *back, + enum iio_backend_interface_type *type); int (*read_raw)(struct iio_backend *back, struct iio_chan_spec const *chan, int *val, int *val2, long mask); @@ -186,6 +195,8 @@ ssize_t iio_backend_ext_info_set(struct iio_dev *indio_dev, uintptr_t private, const char *buf, size_t len); ssize_t iio_backend_ext_info_get(struct iio_dev *indio_dev, uintptr_t private, const struct iio_chan_spec *chan, char *buf); +int iio_backend_interface_type_get(struct iio_backend *back, + enum iio_backend_interface_type *type); int iio_backend_read_raw(struct iio_backend *back, struct iio_chan_spec const *chan, int *val, int *val2, long mask);