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Use the uthread framework to initialize and scan USB buses in parallel
for better performance. The console output is slightly modified with a
final per-bus report of the number of devices found, common to UTHREAD
and !UTHREAD. The USB tests are updated accordingly.
Tested on two platforms:
1. arm64 QEMU on a somewhat contrived example (4 USB buses, each with
one audio device, one keyboard, one mouse and one tablet)
$ make qemu_arm64_defconfig
$ make -j$(nproc) CROSS_COMPILE="ccache aarch64-linux-gnu-"
$ qemu-system-aarch64 -M virt -nographic -cpu max -bios u-boot.bin \
$(for i in {1..4}; do echo -device qemu-xhci,id=xhci$i \
-device\ usb-{audio,kbd,mouse,tablet},bus=xhci$i.0; \
done)
2. i.MX93 EVK (imx93_11x11_evk_defconfig) with two USB hubs, each with
one webcam and one ethernet adapter, resulting in the following device
tree:
USB device tree:
1 Hub (480 Mb/s, 0mA)
| u-boot EHCI Host Controller
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+-2 Hub (480 Mb/s, 100mA)
| GenesysLogic USB2.1 Hub
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+-3 Vendor specific (480 Mb/s, 350mA)
| Realtek USB 10/100/1000 LAN 001000001
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+-4 (480 Mb/s, 500mA)
HD Pro Webcam C920 8F7CD51F
1 Hub (480 Mb/s, 0mA)
| u-boot EHCI Host Controller
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+-2 Hub (480 Mb/s, 100mA)
| USB 2.0 Hub
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+-3 Vendor specific (480 Mb/s, 200mA)
| Realtek USB 10/100/1000 LAN 000001
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+-4 (480 Mb/s, 500mA)
Generic OnLan-CS30 201801010008
Note that i.MX was tested on top of the downstream repository [1] since
USB doesn't work in the upstream master branch.
[1] https://github.com/nxp-imx/uboot-imx/tree/lf-6.6.52-2.2.0
commit 6c4545203d12 ("LF-13928 update key for capsule")
The time spent in usb_init() ("usb start" command) is reported on
the console. Here are the results:
| CONFIG_UTHREAD=n | CONFIG_UTHREAD=y
--------+------------------+-----------------
QEMU | 5628 ms | 2212 ms
i.MX93 | 4591 ms | 2441 ms
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
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To prepare for the introduction of threads in the USB initialization
sequence, move code out of usb_init() into a new helper function:
usb_init_bus() and count the number of USB controllers initialized
successfully by using the DM device_active() function.
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
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Prepare v2024.07-rc5
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The message 'No working controllers found' provides no clue that this
refers to USB controllers.
Provide a message that refers to USB.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
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As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.
Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
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When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.
This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.
Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
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Remove <common.h> from this driver directory and when needed
add missing include files directly.
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
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When 'usb stop' is run, doing 'bootflow scan' does not run the USB hunter
again so does not see any devices. Fix this by telling bootstd about the
state of USB.
Signed-off-by: Simon Glass <sjg@chromium.org>
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EHCI is usually used with companion controller (like OHCI) as companion
controller. This information on the companion is missing currently in
companion drivers.
So, if the usb-uclass isn't aware, it may scan busses in any order: OHCI
first, then EHCI.
This is seen on STM32MP1 where DT probing makes the probe order to occur
by increasing address (OHCI address < EHCI address).
When a low speed or full-speed device is plugged in, it's not detected as
EHCI should first detect it, and give ownership (handover) to OHCI.
Current situation on STM32MP1 (with a low speed device plugged-in)
STM32MP> usb start
starting USB...
Bus usb@5800c000: USB OHCI 1.0
Bus usb@5800d000: USB EHCI 1.00
scanning bus usb@5800c000 for devices... 1 USB Device(s) found
scanning bus usb@5800d000 for devices... 1 USB Device(s) found
scanning usb for storage devices... 0 Storage Device(s) found
The "companion" property in the device tree allow to retrieve companion
controller information, from the EHCI node. This allow marking the
companion driver as such.
With this patch (same low speed device plugged in):
STM32MP> usb start
starting USB...
Bus usb@5800c000: USB OHCI 1.0
Bus usb@5800d000: USB EHCI 1.00
scanning bus usb@5800d000 for devices... 1 USB Device(s) found
scanning bus usb@5800c000 for devices... 2 USB Device(s) found
scanning usb for storage devices... 0 Storage Device(s) found
STM32MP> usb tree
USB device tree:
1 Hub (12 Mb/s, 0mA)
| U-Boot Root Hub
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+-2 Human Interface (1.5 Mb/s, 100mA)
HP HP USB 1000dpi Laser Mouse
1 Hub (480 Mb/s, 0mA)
u-boot EHCI Host Controller
This also optimize bus scan when a High speed device is plugged in, as
the usb-uclass skips OHCI in this case:
STM32MP> usb reset
resetting USB...
Bus usb@5800c000: USB OHCI 1.0
Bus usb@5800d000: USB EHCI 1.00
scanning bus usb@5800d000 for devices... 2 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
STM32MP> usb tree
USB device tree:
1 Hub (480 Mb/s, 0mA)
| u-boot EHCI Host Controller
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+-2 Mass Storage (480 Mb/s, 200mA)
SanDisk Cruzer Blade 03003432021922011407
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Reviewed-by: Marek Vasut <marex@denx.de>
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When USB finds no devices it currently returns -EPERM which bootstd does
not understand. This causes other bootdevs of the same priority to be
skipped.
Fix this by returning the correct error code.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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This should be declared in a header file so that type-checking works
correctly.
Add a single declaration to usb.h and remove the others.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
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Since usb_find_and_bind_driver() allocates the device name it should tell
driver about that, to avoid memory leaks. Fix this.
Signed-off-by: Simon Glass <sjg@chromium.org>
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The main issue the driver addresses is that a USB hub needs to be
powered before it can be discovered. This is often solved by using
"regulator-always-on".
This driver is inspired by the Linux v6.1 driver. It only enables (or
disables) the hub vdd (3v3) supply, so it can be enumerated.
Scanning of the device tree is done in a similar manner to the sandbox,
by the usb-uclass. DT part looks like:
&usbh_ehci {
...
#address-cells = <1>;
#size-cells = <0>;
hub@1 {
compatible = "usb424,2514";
reg = <1>;
vdd-supply = <&v3v3>;
};
};
When the bus gets probed, the driver is automatically probed/removed from
the bus tree, as an example on stm32:
STM32MP> usb start
starting USB...
STM32MP> dm tree
Class Index Probed Driver Name
-----------------------------------------------------------
usb 0 [ + ] ehci_generic | |-- usb@5800d000
usb_hub 0 [ + ] usb_onboard_hub | | `-- hub@1
usb_hub 1 [ + ] usb_hub | | `-- usb_hub
STM32MP> usb tree
USB device tree:
1 Hub (480 Mb/s, 0mA)
| u-boot EHCI Host Controller
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+-2 Hub (480 Mb/s, 2mA)
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
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As DM_ETH is required for all network drivers, it's now safe to remove
the non-DM_ETH support code fro usb_ether itself.
Signed-off-by: Tom Rini <trini@konsulko.com>
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The "generic_bus_%x_dev_%x" string which is printed into this buffer
can be up to 34 characters long ("generic_bus_12345678_dev_12345678").
The buffer would be clipped by snprintf() if both %x were at maximum
range. Make sure the buffer is long enough to cover such possibility.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
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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>
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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>
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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>
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We use 'ofnode' rather than 'of_node' in U-Boot. Rename this function to
fit.
Signed-off-by: Simon Glass <sjg@chromium.org>
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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>
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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>
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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>
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Try to maintain some consistency between these variables by using _plat as
a suffix for them.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Rename this to be consistent with the change from 'platdata'.
Signed-off-by: Simon Glass <sjg@chromium.org>
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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>
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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>
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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>
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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>
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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>
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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>
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Move this header out of the common header.
Signed-off-by: Simon Glass <sjg@chromium.org>
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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]
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This will be used to implement non-blocking keyboard polling in case of
errors.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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Sparse reports "... was not declared. Should it be static?"
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Update the usb uclass to support a live device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
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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>
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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>
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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>
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This new function is more convenient for callers, and handles pre-relocation
situations automatically.
Signed-off-by: Simon Glass <sjg@chromium.org>
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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>
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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>
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