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Thu, 20 Feb 2025 08:56:11 -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; Thu, 20 Feb 2025 08:56:11 -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; Thu, 20 Feb 2025 08:56:11 -0500 Received: from amiclaus-VirtualBox.ad.analog.com (AMICLAUS-L02.ad.analog.com [10.48.65.155]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 51KDtxqq008409; Thu, 20 Feb 2025 08:56:07 -0500 From: Antoniu Miclaus To: , , , , , CC: Antoniu Miclaus Subject: [PATCH 03/14] iio: backend: add support for self sync Date: Thu, 20 Feb 2025 15:54:13 +0200 Message-ID: <20250220135429.8615-4-antoniu.miclaus@analog.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250220135429.8615-1-antoniu.miclaus@analog.com> References: <20250220135429.8615-1-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-Proofpoint-ORIG-GUID: HOY_LTJ2SEj9Wqfkoqf_eiWVzFldfpI2 X-Proofpoint-GUID: HOY_LTJ2SEj9Wqfkoqf_eiWVzFldfpI2 X-Authority-Analysis: v=2.4 cv=DuKs+H/+ c=1 sm=1 tr=0 ts=67b7347c cx=c_pps a=PpDZqlmH/M8setHirZLBMw==:117 a=PpDZqlmH/M8setHirZLBMw==:17 a=T2h4t0Lz3GQA:10 a=gAnH3GRIAAAA:8 a=ygil0CsSKELNEGpiZjoA:9 a=oVHKYsEdi7-vN-J5QA_j:22 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=2025-02-20_05,2025-02-20_02,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 mlxscore=0 phishscore=0 suspectscore=0 mlxlogscore=974 bulkscore=0 adultscore=0 lowpriorityscore=0 spamscore=0 priorityscore=1501 malwarescore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502100000 definitions=main-2502200101 Add iio backend support for self sync enable/disable. When disabled data capture synchronization is done through CNV signal, otherwise through bit-slip. Signed-off-by: Antoniu Miclaus --- drivers/iio/industrialio-backend.c | 30 ++++++++++++++++++++++++++++++ include/linux/iio/backend.h | 6 ++++++ 2 files changed, 36 insertions(+) diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-backend.c index b01db8a65b1c..a81780f569e3 100644 --- a/drivers/iio/industrialio-backend.c +++ b/drivers/iio/industrialio-backend.c @@ -830,6 +830,36 @@ int iio_backend_bitslip_disable(struct iio_backend *back) } EXPORT_SYMBOL_NS_GPL(iio_backend_bitslip_disable, "IIO_BACKEND"); +/** + * iio_backend_self_sync_enable - Enable the self sync data capture. + * @back: Backend device + * + * Data capture synchronization is done through bit-slip. + * + * RETURNS: + * 0 on success, negative error number on failure. + */ +int iio_backend_self_sync_enable(struct iio_backend *back) +{ + return iio_backend_op_call(back, self_sync_enable); +} +EXPORT_SYMBOL_NS_GPL(iio_backend_self_sync_enable, "IIO_BACKEND"); + +/** + * iio_backend_self_sync_disable - Disable the self sync data capture. + * @back: Backend device + * + * Data capture synchronization is done through CNV signal. + * + * RETURNS: + * 0 on success, negative error number on failure. + */ +int iio_backend_self_sync_disable(struct iio_backend *back) +{ + return iio_backend_op_call(back, self_sync_disable); +} +EXPORT_SYMBOL_NS_GPL(iio_backend_self_sync_disable, "IIO_BACKEND"); + /** * iio_backend_ddr_enable - Enable interface DDR (Double Data Rate) mode * @back: Backend device diff --git a/include/linux/iio/backend.h b/include/linux/iio/backend.h index c7b4631b524c..8e663c838974 100644 --- a/include/linux/iio/backend.h +++ b/include/linux/iio/backend.h @@ -104,6 +104,8 @@ enum iio_backend_interface_type { * @filter_disable: Disable filter. * @bitslip_enable: Enable sync process. * @bitslip_disable: Disable sync process. + * @self_sync_enable: Enable the self sync data capture. + * @self_sync_disable: Disable the self sync data capture. * @ddr_enable: Enable interface DDR (Double Data Rate) mode. * @ddr_disable: Disable interface DDR (Double Data Rate) mode. * @data_stream_enable: Enable data stream. @@ -158,6 +160,8 @@ struct iio_backend_ops { int (*filter_disable)(struct iio_backend *back); int (*bitslip_enable)(struct iio_backend *back); int (*bitslip_disable)(struct iio_backend *back); + int (*self_sync_enable)(struct iio_backend *back); + int (*self_sync_disable)(struct iio_backend *back); int (*ddr_enable)(struct iio_backend *back); int (*ddr_disable)(struct iio_backend *back); int (*data_stream_enable)(struct iio_backend *back); @@ -202,6 +206,8 @@ int iio_backend_filter_enable(struct iio_backend *back); int iio_backend_filter_disable(struct iio_backend *back); int iio_backend_bitslip_enable(struct iio_backend *back); int iio_backend_bitslip_disable(struct iio_backend *back); +int iio_backend_self_sync_enable(struct iio_backend *back); +int iio_backend_self_sync_disable(struct iio_backend *back); int iio_backend_ddr_enable(struct iio_backend *back); int iio_backend_ddr_disable(struct iio_backend *back); int iio_backend_data_stream_enable(struct iio_backend *back);