From patchwork Wed Feb 10 10:08:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Ardelean X-Patchwork-Id: 12080403 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92EFDC433E0 for ; Wed, 10 Feb 2021 10:09:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5E2DC64E35 for ; Wed, 10 Feb 2021 10:09:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230410AbhBJKJh (ORCPT ); Wed, 10 Feb 2021 05:09:37 -0500 Received: from mx0a-00128a01.pphosted.com ([148.163.135.77]:33030 "EHLO mx0a-00128a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229678AbhBJKHA (ORCPT ); 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Wed, 10 Feb 2021 05:06:02 -0500 Received: from localhost.localdomain ([10.48.65.12]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 11AA5x06018045; Wed, 10 Feb 2021 05:05:59 -0500 From: Alexandru Ardelean To: , CC: , , , , , , , Alexandru Ardelean Subject: [PATCH v4 00/17] iio: core,buffer: add support for multiple IIO buffers per IIO device Date: Wed, 10 Feb 2021 12:08:06 +0200 Message-ID: <20210210100823.46780-1-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369,18.0.737 definitions=2021-02-10_03:2021-02-10,2021-02-10 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 malwarescore=0 spamscore=0 mlxlogscore=999 clxscore=1015 adultscore=0 priorityscore=1501 bulkscore=0 mlxscore=0 phishscore=0 suspectscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2102100097 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Changelog v3 -> v4: * patch 'docs: ioctl-number.rst: reserve IIO subsystem ioctl() space' remove 'uapi/' from `uapi/linux/iio/*.h` * patch 'iio: core: register chardev only if needed' add commit comment about potentially breaking userspace ABI with chardev removal * patch 'iio: core: rework iio device group creation' remove NULL re-init in iio_device_unregister_sysfs() ; memory is being free'd * patch 'iio: buffer: group attr count and attr alloc' extend commit comment about the 2 or 1 buffer directores * patch 'iio: core: merge buffer/ & scan_elements/ attributes' fixed static checker complaints - removed unused global - initialize omitted 'ret = -ENOMEM' on error path - made iio_buffer_unregister_legacy_sysfs_groups() static * patch 'iio: buffer: wrap all buffer attributes into iio_dev_attr' - update some omitted unwindings; seems i forgot a few originally this was showing up when trying to read from buffer1 * add patch 'iio: buffer: move __iio_buffer_free_sysfs_and_mask() before alloc func' * patch 'iio: buffer: introduce support for attaching more IIO buffers' - removed 'iio_dev_opaque->attached_buffers = NULL' after kfree() - using 'iio_dev_opaque->attached_buffers_cnt' to check that we have buffers instead of checking 'indio_dev->buffer' * patch 'iio: buffer: add ioctl() to support opening extra buffers for IIO device' - replaced -ENOENT with -ENODEV when buffer index is out of range * add 'iio: core: rename 'dev' -> 'indio_dev' in iio_device_alloc()' * add 'iio: buffer: dmaengine: obtain buffer object from attribute' * add tools/iio patches for new multibuffer logic tools: iio: make iioutils_get_type() private in iio_utils tools: iio: privatize globals and functions in iio_generic_buffer.c file tools: iio: convert iio_generic_buffer to use new IIO buffer API Alexandru Ardelean (17): docs: ioctl-number.rst: reserve IIO subsystem ioctl() space iio: core: register chardev only if needed iio: core-trigger: make iio_device_register_trigger_consumer() an int return iio: core: rework iio device group creation iio: buffer: group attr count and attr alloc iio: core: merge buffer/ & scan_elements/ attributes iio: add reference to iio buffer on iio_dev_attr iio: buffer: wrap all buffer attributes into iio_dev_attr iio: buffer: dmaengine: obtain buffer object from attribute iio: core: wrap iio device & buffer into struct for character devices iio: buffer: move __iio_buffer_free_sysfs_and_mask() before alloc iio: buffer: introduce support for attaching more IIO buffers iio: buffer: add ioctl() to support opening extra buffers for IIO device iio: core: rename 'dev' -> 'indio_dev' in iio_device_alloc() tools: iio: make iioutils_get_type() private in iio_utils tools: iio: privatize globals and functions in iio_generic_buffer.c file tools: iio: convert iio_generic_buffer to use new IIO buffer API .../userspace-api/ioctl/ioctl-number.rst | 1 + .../buffer/industrialio-buffer-dmaengine.c | 3 +- drivers/iio/iio_core.h | 24 +- drivers/iio/iio_core_trigger.h | 4 +- drivers/iio/industrialio-buffer.c | 483 ++++++++++++++---- drivers/iio/industrialio-core.c | 108 +++- drivers/iio/industrialio-event.c | 6 +- drivers/iio/industrialio-trigger.c | 6 +- include/linux/iio/buffer.h | 4 +- include/linux/iio/buffer_impl.h | 21 +- include/linux/iio/iio-opaque.h | 14 + include/linux/iio/iio.h | 5 - include/linux/iio/sysfs.h | 3 + include/uapi/linux/iio/buffer.h | 10 + tools/iio/Makefile | 1 + tools/iio/iio_generic_buffer.c | 133 +++-- tools/iio/iio_utils.c | 18 +- tools/iio/iio_utils.h | 8 +- 18 files changed, 658 insertions(+), 194 deletions(-) create mode 100644 include/uapi/linux/iio/buffer.h