summaryrefslogtreecommitdiff
path: root/drivers/usb/gadget/function/u_ether.h
AgeCommit message (Collapse)AuthorFilesLines
2023-08-22usb: gadget: add a inline function gether_bitrate()Linyu Yuan1-0/+13
In function ecm_bitrate(), it is not support report bit rate for super speed plus mode, but it can use same bit rate value defined in ncm and rndis. Add a common inline function gether_bitrate() which report different for all possible speeds, it can be used by ecm, ncm and rndis, also remove old function from them. Signed-off-by: Linyu Yuan <quic_linyyuan@quicinc.com> Link: https://lore.kernel.org/r/20230803091053.9714-3-quic_linyyuan@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-29usb: gadget: f_ecm: Add suspend/resume and remote wakeup supportElson Roy Serrao1-0/+4
When host sends suspend notification to the device, handle the suspend callbacks in the function driver. Depending on the remote wakeup capability the device can either trigger a remote wakeup or wait for the host initiated resume to resume data transfer. Signed-off-by: Elson Roy Serrao <quic_eserrao@quicinc.com> Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Link: https://lore.kernel.org/r/1679694482-16430-7-git-send-email-quic_eserrao@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-15usb: gadget: u_ether: support configuring interface names.Lorenzo Colitti1-0/+12
This patch allows the administrator to configure the interface name of a function using u_ether (e.g., eem, ncm, rndis). Currently, all such interfaces, regardless of function type, are always called usb0, usb1, etc. This makes it very cumbersome to use more than one such type at a time, because userspace cannnot easily tell the interfaces apart and apply the right configuration to each one. Interface renaming in userspace based on driver doesn't help, because the interfaces all have the same driver. Without this patch, doing this require hacks/workarounds such as setting fixed MAC addresses on the functions, and then renaming by MAC address, or scraping configfs after each interface is created to find out what it is. Setting the interface name is done by writing to the same "ifname" configfs attribute that reports the interface name after the function is bound. The write must contain an interface pattern such as "usb%d" (which will cause the net core to pick the next available interface name starting with "usb"). This patch does not allow writing an exact interface name (as opposed to a pattern) because if the interface already exists at bind time, the bind will fail and the whole gadget will fail to activate. This could be allowed in a future patch. For compatibility with current userspace, when reading an ifname that has not currently been set, the result is still "(unnamed net_device)". Once a write to ifname happens, then reading ifname will return whatever was last written. Tested by configuring an rndis function and an ncm function on the same gadget, and writing "rndis%d" to ifname on the rndis function and "ncm%d" to ifname on the ncm function. When the gadget was bound, the rndis interface was rndis0 and the ncm interface was ncm0. Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Link: https://lore.kernel.org/r/20210113234222.3272933-1-lorenzo@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-05USB: gadget: Use the correct style for SPDX License IdentifierNishad Kamdar1-1/+1
This patch corrects the SPDX License Identifier style in header files related to USB peripheral controller drivers. For C header files Documentation/process/license-rules.rst mandates C-like comments (opposed to C source files where C++ style should be used). Changes made by using a script provided by Joe Perches here: https://lkml.org/lkml/2019/2/7/46. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
2017-11-07USB: gadget: function: Remove redundant license textGreg Kroah-Hartman1-5/+0
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 <oneukum@suse.com> Cc: Johan Hovold <johan@kernel.org> Cc: Jerry Zhang <zhangjerry@google.com> Cc: John Keeping <john@metanate.com> Cc: Krzysztof Opasiak <k.opasiak@samsung.com> Cc: Abdulhadi Mohamed <abdulahhadi2@gmail.com> Cc: Matthew Wilcox <willy@linux.intel.com> Cc: Janusz Dziedzic <januszx.dziedzic@linux.intel.com> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Vincent Pelletier <plr.vincent@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-04USB: add SPDX identifiers to all remaining files in drivers/usb/Greg Kroah-Hartman1-0/+1
It's good to have SPDX identifiers in all files to make it easier to audit the kernel tree for correct licenses. Update the drivers/usb/ and include/linux/usb* files with the correct SPDX license identifier based on the license text in the file itself. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This work is based on a script and data from Thomas Gleixner, Philippe Ombredanne, and Kate Stewart. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-18usb: gadget: f_ncm/u_ether: Move 'SKB reserve' quirk setup to u_etherDmitry Osipenko1-1/+0
That quirk is required to make USB Ethernet gadget working on HW that can't cope with unaligned DMA. For some reason only f_ncm sets up that quirk, let's setup it directly in u_ether so other network models would have that quirk applied as well. All network models have been tested with ChipIdea UDC driver on NVIDIA Tegra20 SoC that require DMA to be aligned. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-08-31usb: gadget: u_ether: add a flag to avoid skb_reserve() callingYoshihiro Shimoda1-0/+1
This patch adds a flag "no_skb_reserve" in struct eth_dev. So, if a peripheral driver sets the quirk_avoids_skb_reserve flag, upper network gadget drivers (e.g. f_ncm.c) can avoid skb_reserve() calling using the flag as well. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2015-08-06usb: gadget: remove gadget_chips.hRobert Baldyga1-2/+0
This header file contains helpers for quirks based on UDC controller name. Since we have generic quirk bitfields in usb_gadget structure for all of these quirks we don't need to have this header any longer. This patch removes gadget_chips.h file and makes sure that it's no longer included anywhere in kernel sources. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-30usb: gadget: apply generic altsetting support check mechanismRobert Baldyga1-1/+1
Replace calls of gadget_supports_altsettings() function (which check altset support by comparing UDC controller name with hardcoded names) with gadget_is_altset_supported() which checks generic quirk bitfield. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-07-16usb: gadget: Gadget directory cleanup - group usb functionsAndrzej Pietrasiewicz1-0/+272
The drivers/usb/gadget directory contains many files. Files which are related can be distributed into separate directories. This patch moves the USB functions implementations into a separate directory. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>