29 May, 2015
1 commit
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The compiler did not catch this as it was marked __maybe_unused.
Signed-off-by: Hans de Goede
15 May, 2015
2 commits
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Provide a function to detect USB device insertion/removal in order to
avoid having to do USB enumeration in a tight loop when trying to detect
peripheral hotplugging.Signed-off-by: Vincent Palatin
Reviewed-by: Stefan Reinauer
Tested-by: Stefan Reinauer
Signed-off-by: Simon Glass -
Propagate the error returned by submit_control_msg() rather then always
returning -EIO when the hcd code indicates an error.Signed-off-by: Hans de Goede
06 May, 2015
1 commit
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This fixes descriptor reading of lowspeed devices through ohci not working.
Signed-off-by: Hans de Goede
Acked-by: Marek Vasut
19 Apr, 2015
7 commits
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Add the required #ifdefs and remove unwanted data structures so that the
USB uclass will be able to use this file.Signed-off-by: Simon Glass
Reviewed-by: Marek Vasut -
This function now calls usb_setup_device() to set up the device and
usb_hub_probe() to check if it is a hub. The XHCI special case is now a
parameter to usb_setup_device(). The latter will be used by the USB uclass
when it is added, since it does not rely on any CONFIGs or legacy data
structures.Signed-off-by: Simon Glass
Bug-fixes for descriptor reading and usb_new_device() return value
Signed-off-by: Hans de Goede
Reviewed-by: Marek Vasut
Tested-by: Tom Rini -
Move the code that sets up the device with a new address into its own
function, usb_prepare_device().Signed-off-by: Simon Glass
Reviewed-by: Marek Vasut -
usb_new_device() is far too long and does far too much. As a first step, move
the code that does initial setup and reads a descriptor into its own function
called usb_setup_descriptor().For XHCI the init order is different - we set up the device but don't
actually read the descriptor until after we set an address. Support this
option as a parameter to usb_setup_descriptor().Avoid changing this torturous code more than necessary to make it easy to
review.Signed-off-by: Simon Glass
Reviewed-by: Marek Vasut -
Move the port reset code into its own function. Rename usb_hub_reset() to
indicate that is is now a legacy function.Signed-off-by: Simon Glass
Reviewed-by: Marek Vasut -
This CONFIG is not used anywhere in U-Boot, so drop it.
Signed-off-by: Simon Glass
Acked-by: Marek Vasut -
This function returns NULL on error at present. Adjust it so that we can
return a real error, as is needed with driver model. Also improve the
error handling in its caller, usb_hub_port_connect_change(), and adjust
the code order to prepare for driver model.Signed-off-by: Simon Glass
Reviewed-by: Marek Vasut
14 Apr, 2015
5 commits
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Invoked board_usb_cleanup for cleaning up initialized USB. It
will be invoked if the user enterts ctrl-C.Signed-off-by: Kishon Vijay Abraham I
Reviewed-by: Lukasz Majewski -
When fetching the first descriptor from a new device, only validate that
we received at least 8 bytes, not that we received the entire descriptor.
The reasoning is:
- The code only uses fields in the first 8 bytes, so that's all we need
to have fetched at this stage.
- The smallest maxpacket size is 8 bytes. Before we know the actual
maxpacket the device uses, the USB controller may only accept a single
packet (see the DWC2 note in the comment added in the commit).
Consequently we are only guaranteed to receive 1 packet (at least 8
bytes) even in a non-error case.Fixes: 1a7758044b04 ("usb: Early failure when the first descriptor read
fails or is invalid")
Cc: Paul Kocialkowski
Signed-off-by: Stephen Warren -
This may happen when using an USB1 device on a controller that only supports
USB2 (e.g. EHCI). Reading the first descriptor will fail (read 0 byte), so we
can abort the process at this point instead of failing later and wasting time.Signed-off-by: Paul Kocialkowski
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This checks that a new USB device is correctly initialized and frees it if not.
In addition, this doesn't report that USB was started when no device was found.Signed-off-by: Paul Kocialkowski
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This makes use of errno return codes for representing error codes in a unified
way.Signed-off-by: Paul Kocialkowski
18 Jan, 2015
2 commits
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This commit fixes a number of issues with the reset sequence of musb-new
in host mode:1) Our usb device probe relies on a second device reset being done after the
first descriptors read. Factor the musb reset code into a usb_reset_root_port
function (and add this as an empty define for other controllers), and call
this when a device has no parent.2) Just like with normal usb controllers there needs to be a delay after
reset, for normal usb controllers, this is handled in hub_port_reset, add a
delay to usb_reset_root_port.3) Sync the musb reset sequence with the upstream kernel, clear all bits of
power except bits 4-7, and increase the time reset is asserted to 50 ms.With these fixes an usb keyboard I have now always enumerates properly, where
as earlier it would only enumerare properly once every 5 tries.Signed-off-by: Hans de Goede
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Before this commit u-boot would print the following on boot with musb and
no usb device plugged in:starting USB...
USB0: Port not available.
USB error: all controllers failed lowlevel initThis commit changes this to:
starting USB...
USB0: Port not available.Which is the correct thing to do since the low-level init went fine.
Signed-off-by: Hans de Goede
08 Dec, 2014
1 commit
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Including is enough for general use.
Signed-off-by: Masahiro Yamada
04 Nov, 2014
1 commit
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If the device has a parent, it is instantiated from usb_hub_port_connect_change
and the portnr is right there in dev->portnr, so there is no need for this
whole dance to look it up.Signed-off-by: Hans de Goede
29 Aug, 2014
1 commit
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As we support both Host and Device mode operation, an OTG controller
can return -ENODEV on a port which it found to be in Device mode during
Host mode scan for devices. In case -ENODEV is returned, print that the
port is not available and continue instead of screaming a bloody error
message.Signed-off-by: Marek Vasut
21 Oct, 2013
4 commits
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This parameter will later be used to verify OTG ports.
Signed-off-by: Troy Kisky
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This will be used by usb_lowlevel_init so it will
no longer be used by only board specific functions.Move definition of enum usb_init_type higher in file
so that it will be available for usb_low_level_init.Signed-off-by: Troy Kisky
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This commit unifies board-specific USB initialization implementations
under one symbol (usb_board_init), declaration of which is available in
usb.h.New API allows selective initialization of USB controllers whenever needed.
Signed-off-by: Mateusz Zalega
Signed-off-by: Kyungmin Park
Reviewed-by: Lukasz Majewski
Cc: Marek Vasut
Cc: Lukasz Majewski -
This adds stack layer for eXtensible Host Controller Interface
which facilitates use of USB 3.0 in host mode.Adapting xHCI host controller driver in linux-kernel
by Sarah Sharp to needs in u-boot.Initial porting from Linux kernel version 3.4, with following
top commit history of drivers/usb/host/xhci* :
cf84055 xHCI: Cleanup isoc transfer ring when TD length mismatch foundThis adds the basic xHCI host controller driver with bare minimum
features:
- Control/Bulk transfer support has been added with required
infrastructure for necessary xHC data structures.
- Stream protocol hasn't been supported yet.
- No support for quirky devices has been added.Signed-off-by: Vikas C Sajjan
Signed-off-by: Julius Werner
Signed-off-by: Vivek Gautam
Cc: Simon Glass
Cc: Minkyu Kang
Cc: Dan Murphy
Cc: Marek Vasut
27 Aug, 2013
1 commit
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The existing USB configuration parsing code relies on the descriptors'
own length values when reading through the configuration blob. Since the
size of those descriptors is always well-defined, we should rather use
the known sizes instead of trusting device-provided values to be
correct. Also adds some safety to potential out-of-order descriptors.Change-Id: I16f69dfdd6793aa0fe930b5148d4521f3e5c3090
Signed-off-by: Julius Werner
24 Jul, 2013
1 commit
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Signed-off-by: Wolfgang Denk
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini
06 May, 2013
4 commits
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This adds usb framework support for super-speed usb, which will
further facilitate to add stack support for xHCI.Signed-off-by: Vikas C Sajjan
Signed-off-by: Vivek Gautam -
Fetch the device class into usb device's dwcriptors,
so that the host controller's driver can use this info
to differentiate between HUB and DEVICE.Signed-off-by: Amar
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Some cleanup in usb framework, nothing much on feature side.
Signed-off-by: Vikas C Sajjan
Signed-off-by: Vivek Gautam -
USB_PRINTF, USB_HUB_PRINTF, USB_STOR_PRINTF, USB_KBD_PRINTF
are nothing but conditional debug prints, depending on DEBUG.
So better remove them and use debug() simply.Signed-off-by: Vivek Gautam
17 Dec, 2012
1 commit
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If probe of a newly connected device fails for some reason, clean up
the allocated entry in usb_dev array.Signed-off-by: Milind Choudhary
Signed-off-by: Simon Glass
20 Nov, 2012
1 commit
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Linux usb/ch9.h seems to have all the same information (and more)
as usbdescriptors.h so use the former instead of the later one.As a consequense of this change USB_SPEED_* values don't correspond
directly to EHCI speed encoding anymore, I've added necessary
recoding in EHCI driver. Also there is no point to put speed into
pipe anymore so it's removed and a bunch of host drivers fixed to
look at usb_device->speed instead.Old usbdescriptors.h included is not removed as it seems to be
used by old USB device code.This makes usb.h and usbdevice.h incompatible. Fortunately the
only place that tries to include both are the old MUSB code and
it needs usb.h only for USB_DMA_MINALIGN used in aligned attribute
on musb_regs structure but this attribute seems to be unneeded
(old MUSB code doesn't support any DMA at all).Signed-off-by: Ilya Yanok
22 Oct, 2012
1 commit
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When a USB configuration descriptor was larger than our USB buffer
(512 bytes), we were skipping the full descriptor reading but then we
were still parsing and using it, triggering memory corruptions.
Now in that case, it just skips this device enumeration and displays the
appropriate message to the user, so he can fix the buffer if he wants.This bug was triggered by some UVC webcams which have very large
configuration descriptors (e.g. a couple of kB) describing all their
supported video encodings.Signed-off-by: Vincent Palatin
Acked-by: Simon Glass
16 Oct, 2012
2 commits
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Allows to initialize more than one USB controller at once.
v2: print message when controller stop fails
Signed-off-by: Lucas Stach
Reviewed-by: Marek Vasut -
Carry an index in the lowlevel usb functions to make specify the
respective usb controller.Also pass through an controller struct from lowlevel_init to the
creation of the root usb device of this controller.Signed-off-by: Lucas Stach
Reviewed-by: Marek Vasut
18 Jul, 2012
2 commits
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Return values of submit_{control,bulk}_msg() functions
should be checked to detect possible error.Signed-off-by: Ilya Yanok
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usb_get_descriptor passes it's buffer argument directly to
usb_control_msg() so it has to be properly aligned/padded.Signed-off-by: Ilya Yanok
20 May, 2012
2 commits
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This avoids cache-alignment warnings shown in console
when a usb command is entered.Whenever X bytes of unaligned buffer is invalidated, arm core
invalidates X + Y bytes as per the cache line size and throws
these warnings.Signed-off-by: Puneet Saxena
Signed-off-by: Marek Vasut -
Building usb for Blackfin boards fails as we get linux/compiler.h
included which expands the "noinline" inside of the attribute and
we get attribute(attribute(noinline)).Explicitly use the helper define to avoid this.
Signed-off-by: Mike Frysinger
