path: root/sys/sys/firmware.h
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* firmware(9): extend firmware_get() by a "no warn" flag.Bjoern A. Zeeb2021-01-271-0/+5
| | | | | | | | | | | | | | | | | | With the upcoming usage from LinuxKPI but also from drivers ported natively we are seeing more probing of various firmware (names). Add the ability to firmware(9) to silence the "firmware image loading/registering errors" by adding a new firmware_get_flags() functions extending firmware_get() and taking a flags argument as firmware_put() already does. Requested-by: zeising (for future LinuxKPI/DRM) Sponsored-by: The FreeBSD Foundation Sponsored-by: Rubicon Communications, LLC ("Netgate") MFC after: 3 days Reviewed-by: markj Differential Revision: https://reviews.freebsd.org/D27413
* sys/sys: further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-271-0/+2
| | | | | | | | | | | | | | | Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Notes: svn path=/head/; revision=326256
* Cleanup and document the implementation of firmware(9) based onLuigi Rizzo2007-02-151-16/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | a version that i posted earlier on the -current mailing list, and subsequent feedback received. The core of the change is just in sys/firmware.h and kern/subr_firmware.c, while other files are just adaptation of the clients to the ABI change (const-ification of some parameters and hiding of internal info, so this is fully compatible at the binary level). In detail: - reduce the amount of information exported to clients in struct firmware, and constify the pointer; - internally, document and simplify the implementation of the various functions, and make sure error conditions are dealt with properly. The diffs are large, but the code is really straightforward now (i hope). Note also that there is a subtle issue with the implementation of firmware_register(): currently, as in the previous version, we just store a reference to the 'imagename' argument, but we should rather copy it because there is no guarantee that this is a static string. I realised this while testing this code, but i prefer to fix it in a later commit -- there is no regression with respect to the past. Note, too, that the version in RELENG_6 has various bugs including missing locks around the module release calls, mishandling of modules loaded by /boot/loader, and so on, so an MFC is absolutely necessary there. I was just postponing it until this cleanup to avoid doing things twice. MFC after: 1 week Notes: svn path=/head/; revision=166756
* Move the new flags field to the end of the structure to maintainIan Dowse2006-06-101-1/+1
| | | | | | | | | ABI compatibility. Suggested by: mlaier (and forgotten by me) Notes: svn path=/head/; revision=159490
* Keep firmware images on the list until they have been unregisteredIan Dowse2006-06-101-0/+4
| | | | | | | | | | | | | | | | with firmware_unregister(). Previously when the last driver reference had been dropped we would clear the list entry under the assumption that the firmware module was about to be unloaded, but this was not true if the firmware image had been loaded manually with kldload. This makes it possible to manually kldload firmware images as a workaround for drivers such as ipw that attempt to load firmware while resuming after a suspend. Reviewed by: mlaier (an earlier version of the patch) Notes: svn path=/head/; revision=159486
* firmware(9) is a subsystem to load binary data into the kernel via aMax Laier2006-01-291-0/+61
specially crafted module. There are several handrolled sollutions to this problem in the tree already which will be replaced with this. They include iwi(4), ipw(4), ispfw(4) and digi(4). No objection from: arch MFC after: 2 weeks X-MFC after: some drivers have been converted Notes: svn path=/head/; revision=154974