kernel.git/drivers/usb/gadget/function/f_uac1.c, branch linux-5.17.y

usb:gadget: f_uac1: fixed sync playback

2021-10-25T07:19:21Z

The u_audio param fb_max was not set to its default value in f_uac1.c. As a result the maximum value of Playback Pitch ctl was kept at 1000000, not allowing to set faster playback pitch for UAC1. The setting required moving the default constant UAC2_DEF_FB_MAX from u_uac2.h to FBACK_FAST_MAX in u_audio.h as that header is common for f_uac1.c and f_uac2.c. Fixes: 6fec018a7e70 ("usb: gadget: u_audio.c: Adding Playback Pitch ctl for sync playback") Signed-off-by: Pavel Hofman Link: https://lore.kernel.org/r/20211022140339.248669-1-pavel.hofman@ivitera.com Signed-off-by: Greg Kroah-Hartman

usb: gadget: f_uac1: fixing inconsistent indenting

2021-08-18T13:33:02Z

Fixing inconsistent indenting identified by kernel test robot. Signed-off-by: Pavel Hofman Acked-By: Felipe Balbi Link: https://lore.kernel.org/r/20210817100555.4437-1-pavel.hofman@ivitera.com Signed-off-by: Greg Kroah-Hartman

usb: gadget: f_uac1: add volume and mute support

2021-07-21T08:10:11Z

This adds bi-directional (host->device, device->host) volume/mute support to the f_uac1 driver by adding Feature Units and interrupt endpoint. Currently only master channel is supported. Volume and mute are configurable through configfs, by default volume has -100..0 dB range with 1 dB step. Similar to existing flexible endpoints configuration, Feature Unit won't be added to the topology if both mute and volume are not enabled, also interrupt endpoint isn't added to the device if no feature unit is present Signed-off-by: Ruslan Bilovol Signed-off-by: Pavel Hofman Link: https://lore.kernel.org/r/20210712125529.76070-5-pavel.hofman@ivitera.com Signed-off-by: Greg Kroah-Hartman

usb: gadget: f_uac1: disable IN/OUT ep if unused

2021-03-23T11:54:56Z

User can configure f_uac1 function via p_chmask/c_chmask whether uac1 shall support playback and/or capture, but it has only effect on the created ALSA device, but not on the USB descriptor. This patch adds playback/capture descriptors dependent on that parameter. It is similar to the same conversion done earlier for f_uac2 Signed-off-by: Ruslan Bilovol Link: https://lore.kernel.org/r/1614599375-8803-6-git-send-email-ruslan.bilovol@gmail.com Signed-off-by: Greg Kroah-Hartman

usb: gadget: f_uac1: validate input parameters

2021-03-23T11:54:56Z

Currently user can configure UAC1 function with parameters that violate UAC1 spec or are not supported by UAC1 gadget implementation. This can lead to incorrect behavior if such gadget is connected to the host - like enumeration failure or other issues depending on host's UAC1 driver implementation, bringing user to a long hours of debugging the issue. Instead of silently accept these parameters, throw an error if they are not valid. Signed-off-by: Ruslan Bilovol Link: https://lore.kernel.org/r/1614599375-8803-5-git-send-email-ruslan.bilovol@gmail.com Signed-off-by: Greg Kroah-Hartman

usb: gadget: f_uac1: stop playback on function disable

2021-03-10T08:36:12Z

There is missing playback stop/cleanup in case of gadget's ->disable callback that happens on events like USB host resetting or gadget disconnection Fixes: 0591bc236015 ("usb: gadget: add f_uac1 variant based on a new u_audio api") Cc: # 4.13+ Signed-off-by: Ruslan Bilovol Link: https://lore.kernel.org/r/1614599375-8803-3-git-send-email-ruslan.bilovol@gmail.com Signed-off-by: Greg Kroah-Hartman

usb: gadget: function: sync f_uac1 ac header baInterfaceNr

2019-02-07T11:14:51Z

f_uac1 audio control header descriptor default set baInterfaceNr[]={1,2}, but usb gadget make a configuration descriptor with more interfaces combination, it can not confirm f_uac1 function linked first. So always keep baInterfaceNr[]={1,2} is correct, and it is necessary to sync baInterfaceNr[] with usb_interface_id() value. Signed-off-by: Liang Shengjun Signed-off-by: Felipe Balbi

usb: gadget: fix various indentation issues

2019-02-07T11:14:51Z

There are a bunch of various indentation issues, clean these up. Signed-off-by: Colin Ian King Signed-off-by: Felipe Balbi

Merge tag 'configfs-for-4.15' of git://git.infradead.org/users/hch/configfs

2017-11-14T22:44:04Z

Pull configfs updates from Christoph Hellwig: "A couple of configfs cleanups: - proper use of the bool type (Thomas Meyer) - constification of struct config_item_type (Bhumika Goyal)" * tag 'configfs-for-4.15' of git://git.infradead.org/users/hch/configfs: RDMA/cma: make config_item_type const stm class: make config_item_type const ACPI: configfs: make config_item_type const nvmet: make config_item_type const usb: gadget: configfs: make config_item_type const PCI: endpoint: make config_item_type const iio: make function argument and some structures const usb: gadget: make config_item_type structures const dlm: make config_item_type const netconsole: make config_item_type const nullb: make config_item_type const ocfs2/cluster: make config_item_type const target: make config_item_type const configfs: make ci_type field, some pointers and function arguments const configfs: make config_item_type const configfs: Fix bool initialization/comparison

USB: gadget: function: Remove redundant license text

2017-11-07T14:45:02Z

Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Oliver Neukum Cc: Johan Hovold Cc: Jerry Zhang Cc: John Keeping Cc: Krzysztof Opasiak Cc: Abdulhadi Mohamed Cc: Matthew Wilcox Cc: Janusz Dziedzic Acked-by: Felipe Balbi Acked-by: Michal Nazarewicz Acked-by: Laurent Pinchart Acked-by: Vincent Pelletier Signed-off-by: Greg Kroah-Hartman