src/sys/dev/sound, branch release/12.3.0

pcm(4): Fix a common typo in source code comments

2021-09-29T17:23:47Z

- s/prefered/preferred/ (cherry picked from commit 513ee901eec639da45796d563168f0af966705e6)

sound(4): Fix some common typos in comments

2021-08-31T06:15:50Z

- s/doens't/doesn't/ - s/apropriate/appropriate/ - s/intepretation/interpretation/ (cherry picked from commit 58d868c88d21b46d3d6d40a2920e7ba8996723b8)

Fix a common typo in source code comments

2021-08-19T07:36:32Z

- s/aligment/alignment/ (cherry picked from commit a1581cd73594bbbde638859c31226c2c21be1ab3)

hda: correct comment about Asus laptop digital mics

2021-05-27T00:49:43Z

Reported in review D30333 MFC after: 1 week (cherry picked from commit 5d698386fbfe166df72a17712ffde8cefeecefab)

MFC 31070b5bc77a:

2021-04-01T09:16:39Z

Set default alternate setting when USB audio devices are not in use, to activate power save features. Differential Revision: https://reviews.freebsd.org/D28032 Suggested by: Shichun_Ma@Dell.com Sponsored by: Mellanox Technologies // NVIDIA Networking (cherry picked from commit 31070b5bc77a499009a835650eb9d4bf2eceaa15)

Fix several dev_clone callbacks to avoid out-of-bounds reads

2021-03-31T13:16:51Z

Use strncmp() instead of bcmp(), so that we don't have to find the minimum of the string lengths before comparing. Reviewed by: kib Reported by: KASAN Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D29463 (cherry picked from commit 3428b6c050d102ba7f95514b29f4f5685d76b645)

MFC 12148d4300db:

2021-02-18T08:43:46Z

Fix for locking order reversal in USB audio driver, when using mmap(). Locking the second lock which causes the LOR, can be skipped because the code updating the shared variables is always executing from the same USB thread. lock order reversal: 1st 0xfffff80005cc3840 pcm7:play:dsp7.p0 (pcm play channel, sleep mutex) @ usb_transfer.c:2342 2nd 0xfffff80005cc3860 pcm7:record:dsp7.r0 (pcm record channel, sleep mutex) @ uaudio.c:2317 lock order pcm record channel -> pcm play channel established at: witness_checkorder+0x461 __mtx_lock_flags+0x98 dsp_mmap_single+0x151 vm_mmap_cdev+0x65 devfs_mmap_f+0x143 kern_mmap_req+0x594 sys_mmap+0x46 amd64_syscall+0x12e fast_syscall_common+0xf8 lock order pcm play channel -> pcm record channel attempted at: witness_checkorder+0xd82 __mtx_lock_flags+0x98 uaudio_chan_play_callback+0xeb usbd_callback_wrapper+0x7ec usb_command_wrapper+0x7e usb_callback_proc+0x8e usb_process+0xf3 fork_exit+0x80 fork_trampoline+0xe Found by: Stefan Ehmann Sponsored by: Mellanox Technologies // NVIDIA Networking (cherry picked from commit 12148d4300dbbd93260bf2801cdb9eda8b3b05a4)

Unify Intel CODEC naming.

2021-01-22T16:44:08Z

Submitted by: Dmitry Luhtionov (cherry picked from commit 510cc421263fa807a72c9b4b8d9a4091a96d9648)

MFC r367615:

2020-12-01T12:36:21Z

Add a tunable sysctl, hw.usb.uaudio.handle_hid, to allow disabling the the HID volume keys support in the USB audio driver. While at it re-organize the USB audio sysctls a bit. Differential Revision: https://reviews.freebsd.org/D27180 Sponsored by: Mellanox Technologies // NVIDIA Networking

MFC r367892:

2020-11-27T11:51:07Z

Unlock channels when any of them are locked, when returning for non-busy state.