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path: root/drivers/usb/host/usb-uclass.c
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* usb: Use the first available device for ehci_gadgetSean Anderson2022-01-251-2/+2
| | | | | | | | | | | | | | | | For whatever reason, usb_setup_ehci_gadget removes and probes USB device 0. However, not all systems have a device 0. Use the first device instead. The device probed should probably have something to do with the controller (as specified by e.g. ums <controller> or fastboot <controller>). In fact, I find it odd that we probe the USB device in the first place, because this is just to set up the gadget itself. Presumably, the controller should be probed by usb_gadget_initialize somehow. Signed-off-by: Sean Anderson <sean.anderson@seco.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* dm: define LOG_CATEGORY for all uclassPatrick Delaunay2021-07-061-0/+2
| | | | | | | | Define LOG_CATEGORY for all uclass to allow filtering with log command. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* dm: core: Use dev_has_ofnode() instead of dev_of_valid()Simon Glass2021-01-051-1/+1
| | | | | | | | | | | We have two functions which do the same thing. Standardise on dev_has_ofnode() since there is no such thing as an 'invalid' ofnode in normal operation: it is either null or missing. Also move the functions into one place. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* dm: core: Rename dev_has_of_node() to dev_has_ofnode()Simon Glass2021-01-051-1/+1
| | | | | | | We use 'ofnode' rather than 'of_node' in U-Boot. Rename this function to fit. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Use access methods for dev/uclass private dataSimon Glass2021-01-051-3/+3
| | | | | | | | | | | Most drivers use these access methods but a few do not. Update them. In some cases the access is not permitted, so mark those with a FIXME tag for the maintainer to check. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Pratyush Yadav <p.yadav@ti.com>
* dm: Drop the unused arg in uclass_find_device_by_seq()Simon Glass2020-12-181-2/+2
| | | | | | | | Now that there is only one sequence number (rather than both requested and assigned ones) we can simplify this function. Also update its caller to simplify the logic. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Avoid accessing seq directlySimon Glass2020-12-181-1/+1
| | | | | | | | | | At present various drivers etc. access the device's 'seq' member directly. This makes it harder to change the meaning of that member. Change access to go through a function instead. The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: treewide: Rename ..._platdata variables to just ..._platSimon Glass2020-12-131-7/+7
| | | | | | | Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: treewide: Rename dev_get_platdata() to dev_get_plat()Simon Glass2020-12-131-1/+1
| | | | | | Rename this to be consistent with the change from 'platdata'. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: treewide: Rename 'platdata' variables to just 'plat'Simon Glass2020-12-131-7/+7
| | | | | | | | | | We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: treewide: Rename auto_alloc_size members to be shorterSimon Glass2020-12-131-4/+4
| | | | | | | | | | | | This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: core: Rename device_bind_ofnode() to device_bind()Simon Glass2020-12-131-2/+2
| | | | | | | This is the standard function to use when binding devices. Drop the '_ofnode' suffix to make this clear. Signed-off-by: Simon Glass <sjg@chromium.org>
* usb: ci_udc: Add function to remove usb deviceYe Li2020-09-011-0/+18
| | | | | | | | | | | | When unregister gadget driver in ci_udc, the usb device is not removed or stop. This causes next "usb start" fails to work. Add a new interface "usb_remove_ehci_gadget" in usb-uclass to remove the usb device for DM driver. Using "usb_lowlevel_stop" for non-DM driver. Signed-off-by: Ye Li <ye.li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>
* usb: usb-uclass.c: Drop le16_to_cpu() as values are already swappedStefan Roese2020-08-051-4/+4
| | | | | | | | | | | These values are already swapped to CPU endianess, so swapping them again is a bug. Let's remove the swap here instead. Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Marek Vasut <marex@denx.de>
* usb: provide a device tree node to USB devicesMichael Walle2020-06-111-5/+36
| | | | | | | | | | | | It is possible to specify a device tree node for an USB device. This is useful if you have a static USB setup and want to use aliases which point to these nodes, like on the Raspberry Pi. The nodes are matched against their hub port number, the compatible strings are not matched for now. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
* common: Drop log.h from common headerSimon Glass2020-05-181-0/+1
| | | | | | Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
* usb: Keep async schedule running only across mass storage xfersMarek Vasut2020-04-091-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than keeping the asynchronous schedule running always, keep it running only across USB mass storage transfers for now, as it seems that keeping it running all the time interferes with certain control transfers during device enumeration. Note that running the async schedule all the time should not be an issue, especially on EHCI HCD, as that one implements most of the transfers using async schedule. Note that we have usb_disable_asynch(), which however is utterly broken. The usb_disable_asynch() blocks the USB core from doing async transfers by setting a global flag. The async schedule should however be disabled per USB controller. Moreover, setting a global flag does not prevent the controller from using the async schedule, which e.g. the EHCI HCD does. This patch implements additional callback to the controller, which permits it to lock the async schedule and keep it running across multiple transfers. Once the schedule is unlocked, it must also be disabled. This thus prevents the async schedule from running outside of the USB mass storage transfers. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Lukasz Majewski <lukma@denx.de> Cc: Tom Rini <trini@konsulko.com> Tested-by: Tom Rini <trini@konsulko.com> [omap3_beagle, previously failing]
* usb: Add nonblock argument to submit_int_msgMichal Suchanek2019-09-111-2/+3
| | | | | | | This will be used to implement non-blocking keyboard polling in case of errors. Signed-off-by: Michal Suchanek <msuchanek@suse.de>
* usb: host: Print device name when scanningIsmael Luceno Cortes2019-04-091-8/+4
| | | | | | | | | | | | | | | | | | Drop the counter, it has no meaning other than being the order in which the interface is found; the name assigned to the USB host controller interface is a better indicator. Example of the original output: > USB0: USB EHCI 1.10 > scanning bus 0 for devices... 2 USB Device(s) found > scanning usb for storage devices... 1 Storage Device(s) found Patched output: > Bus usb@ee080100: USB EHCI 1.10 > scanning bus usb@ee080100 for devices... 2 USB Device(s) found > scanning usb for storage devices... 1 Storage Device(s) found Signed-off-by: Ismael Luceno <ismael.luceno@silicon-gears.com>
* SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini2018-05-071-2/+1
| | | | | | | | | | | | | | | | | | | | When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
* Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTRTom Rini2018-04-271-2/+0
| | | | | | | | We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
* dm: usb: emul: Drop usb_emul_reset()Bin Meng2017-10-011-11/+0
| | | | | | | | With the root hub unbinding in usb_stop(), there is no need to do a Sandbox-specific reset operation. usb_emul_reset() is no longer used anywhere, drop it. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
* dm: usb: Remove no longer needed blk_unbind_all()Bin Meng2017-10-011-5/+1
| | | | | | | With the root hub unbinding in usb_stop(), there is no need to do a blk uclass specific unbind operation. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
* dm: usb: Fix broken usb_stop()Bin Meng2017-10-011-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At present we only do device_remove() during usb stop. The DM API device_remove() only marks the device state as inactivated, but still keeps its USB topology (eg: parent, children, etc) in the DM device structure. There is no issue if we only start USB subsystem once and never stop it. But a big issue occurs when we do 'usb stop' and 'usb start' multiple times. Strange things may be observed with current implementation, like: - the enumeration may report only 1 mass storage device is detected, but the total number of USB devices is correct. - USB keyboard does not work anymore after a bunch of 'usb reset' even if 'usb tree' shows it is correctly identified. - read/write flash drive via 'fatload usb' may complain "Bad device" In fact, every time when USB host controller starts the enumeration process, it takes random time for each USB port to show up online, hence each USB device may appear in a different order from previous enumeration, and gets assigned to a totally different USB address. As a result, we end up using a stale USB topology in the DM device structure which still reflects the previous enumeration result, and it may create an exact same DM device name like generic_bus_0_dev_7 that is already in the DM device structure. And since the DM device structure is there, there is no device_bind() call to bind driver to the device during current enumeration process, eventually creating an inconsistent software representation of the hardware topology, a non-working USB subsystem. The fix is to clear the unused USB topology in the usb_stop(), by calling device_unbind() on each controller's root hub device, and the unbinding will unbind all of its children automatically. For Sandbox, we need scan the device tree each time when we start the USB stack, in order to re-create the emulated USB devices and bind drivers for them before we actually do the driver probe. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
* dm: usb: Add a new USB controller operation 'get_max_xfer_size'Bin Meng2017-09-271-0/+11
| | | | | | | The HCD may have limitation on the maximum bytes to be transferred in a USB transfer. USB class driver needs to be aware of this. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
* dm: usb: Add a new USB controller operation 'update_hub_device'Bin Meng2017-07-281-0/+11
| | | | | | | | | For USB host controllers like xHC, its internal representation of hub needs to be updated after the hub descriptor is fetched. This adds a new op that does this. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* usb: hub: Use 'struct usb_hub_device' as hub device's uclass_privBin Meng2017-07-281-2/+0
| | | | | | | | | Use USB hub device's dev->uclass_priv to point to 'usb_hub_device' so that with driver model usb_hub_reset() and usb_hub_allocate() are no longer needed. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* usb: add static to local symbolsMasahiro Yamada2017-07-281-9/+9
| | | | | | Sparse reports "... was not declared. Should it be static?" Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* dm: usb: Convert uclass to livetreeSimon Glass2017-06-011-5/+3
| | | | | | Update the usb uclass to support a live device tree. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: core: Add flags parameter to device_remove()Stefan Roese2017-04-041-2/+2
| | | | | | | | | | | | | This patch adds the flags parameter to device_remove() and changes all calls to this function to provide the default value of DM_REMOVE_NORMAL for "normal" device removal. This is in preparation for the driver specific pre-OS (e.g. DMA cancelling) remove support. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
* dm: core: Replace of_offset with accessorSimon Glass2017-02-081-3/+4
| | | | | | | | | At present devices use a simple integer offset to record the device tree node associated with the device. In preparation for supporting a live device tree, which uses a node pointer instead, refactor existing code to access this field through an inline function. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Use dm_scan_fdt_dev() directly where possibleSimon Glass2016-07-271-6/+1
| | | | | | | Quite a few places have a bind() method which just calls dm_scan_fdt_dev(). We may as well call dm_scan_fdt_dev() directly. Update the code to do this. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Convert users from dm_scan_fdt_node() to dm_scan_fdt_dev()Simon Glass2016-07-271-3/+1
| | | | | | | This new function is more convenient for callers, and handles pre-relocation situations automatically. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: usb: Unbind old block devices when shutting down USBSimon Glass2016-03-171-1/+5
| | | | | | | | | | | | | | | | | When 'usb start' is used, block devices are created for any USB flash sticks and disks, etc. When 'usb stop' is used, these block devices are currently not removed. We don't want old block devices hanging around since they can still be visible to U-Boot. Therefore, when USB is shut down, remove and unbind all the block devices created by the USB subsystem. Possibly we should unbind all devices which don't cause problems by being unbound. Most likely we can remove everything except USB controllers, hubs and emulators. We can consider that later. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Stephen Warren <swarren@nvidia.com>
* dm: usb: Remove inactive children after a bus scanSimon Glass2015-11-191-0/+23
| | | | | | | | | | Each scan of the USB bus may return different results. Existing driver-model devices are reused when found, but if a device no longer exists it will stay around, de-activated, but bound. Detect these devices and remove them after the scan completes. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: usb: Deprecate usb_get_dev_index()Simon Glass2015-11-191-0/+9
| | | | | | | | This function should not be used with driver model. While there are users of USB Ethernet that use driver model for USB but not Ethernet, we have to keep it around. Add a comment to that effect. Signed-off-by: Simon Glass <sjg@chromium.org>
* Revert "dm: usb: Use device_unbind_children to clean up usb devs on stop"Simon Glass2015-11-191-3/+0
| | | | | | | | This reverts commit 6cda369509e0d3fa5f9e33c9d71589c4523799fa. We want to avoid having the USB stack rely on unbind. Signed-off-by: Simon Glass <sjg@chromium.org>
* Revert "dm: usb: Rename usb_find_child to usb_find_emul_child"Simon Glass2015-11-191-9/+10
| | | | | | | | This reverts commit 9b510df703d282effba4f56ac567aa8011d56e6b. We want to avoid having the USB stack rely on unbind. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Rename dev_get_parentdata() to dev_get_parent_priv()Simon Glass2015-10-231-4/+4
| | | | | | | | The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
* Move ALLOC_CACHE_ALIGN_BUFFER() to the new memalign.h headerSimon Glass2015-09-111-0/+1
| | | | | | | Now that we have a new header file for cache-aligned allocation, we should move the stack-based allocation macro there also. Signed-off-by: Simon Glass <sjg@chromium.org>
* usb: USB storage-specific part ifdef in uclassPaul Kocialkowski2015-08-051-0/+2
| | | | | | | usb_stor_reset is only defined when USB storage support is enabled, thus the function is not declared when such support is missing. Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
* dm: usb: Do not assume that first child is always a hubHans de Goede2015-07-211-5/+5
| | | | | | | | | | | | | On some single port (otg) controllers there is no emulated root hub, so the first child (if any) may be one of: UCLASS_MASS_STORAGE, UCLASS_USB_DEV_GENERIC or UCLASS_USB_HUB. All three of these (and in the future others) are suitable for our purposes, remove the check for the device being a hub, and add a check to deal with the fact that there may be no child-dev. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: usb: Allow usb host drivers to implement usb_reset_root_portHans de Goede2015-07-211-5/+11
| | | | | | | | | Allow usb uclass host drivers to implement usb_reset_root_port, this is used by single port usb hosts which do not emulate a hub, such as otg controllers. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: usb: Rename usb_find_child to usb_find_emul_childHans de Goede2015-07-211-10/+9
| | | | | | | | | | | | | | | Now that we unbind usb devices from usb_stop() usb_find_child() is only necessary to deal with emulated usb devices. Rename it to make this clear and add a #ifdef to make it a nop in other cases. Note the #ifdef turns usb_find_emul_child() into a nop, rather then not building it and adding another #ifdef to the caller, this is done this way because adding a #ifdef to the caller is somewhat hairy. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: usb: Use device_unbind_children to clean up usb devs on stopHans de Goede2015-07-211-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On an usb stop instead of leaving orphan usb devices behind simply remove them. The result of this commit is best seen in the output of "dm tree" after plugging out an usb hub with 2 devices plugges in and plugging in a keyb. instead, before this commit the output would be: usb [ + ] `-- sunxi-musb usb_hub [ ] |-- usb_hub usb_mass_st [ ] | |-- usb_mass_storage usb_dev_gen [ ] | `-- generic_bus_0_dev_3 usb_dev_gen [ + ] `-- generic_bus_0_dev_1 Notice the non active usb_hub child and its 2 non active children. The first child being non-active as in this example also causes usb_get_dev_index to return NULL when probing the first child, which results in the usb kbd code not binding to the keyboard. With this commit in place the output after swapping and "usb reset" is: usb [ + ] `-- sunxi-musb usb_dev_gen [ + ] `-- generic_bus_0_dev_1 As expected, and usb_get_dev_index works properly and the keyboard works. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* usb: Add an usb_device parameter to usb_reset_root_portHans de Goede2015-07-211-1/+1
| | | | | | | | | | | Add an usb_device parameter to usb_reset_root_port so that it knows which root-port it is resetting. This is necessary for proper device-model support for usb_reset_root_port. Also remove a duplicate declaration of usb_reset_root_port() from usb.h . Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* usb: usb_setup_device: Drop unneeded portnr function argumentHans de Goede2015-07-211-1/+1
| | | | | | | | Drop the unneeded portnr function argument, the portnr is part of the usb_device struct which is passed via the dev argument. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* usb: Drop device-model specific copy of usb_legacy_port_resetHans de Goede2015-07-211-29/+0
| | | | | | | | | | | | | | | The device-model usb_legacy_port_reset function calls the device-model usb_port_reset function which is a 1 on 1 copy of the non dm usb_legacy_port_reset and this is the only use of usb_port_reset in all of u-boot. Drop both, and alway use the usb_legacy_port_reset() version in common/usb.c . Also while at it make it static as it is only used in common/usb.c . Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: usb: Implement usb_detect_change() for driver modelSimon Glass2015-06-101-0/+43
| | | | | | Support this function with driver model also (CONFIG_DM_USB). Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: usb: Do not scan companion buses if no devices where handed overHans de Goede2015-05-141-8/+34
| | | | | | | | | | | | USB scanning is slow, and there is no need to scan the companion buses if no usb devices where handed over to the companinon controllers by any of the main controllers. This saves e.g. 2 seconds when booting a A10 OLinuxIno Lime with no USB-1 devices plugged into the root usb ports. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
generated by cgit (git 2.34.1) at 2025-02-28 16:04:17 +0000