if we want to support situations where we have
both SoC and PCIe versions of the IP on the same
platform, we need to have sequential numbers between
them, otherwise we will still have name collisions.
Because of that, we need to move dwc3_get/put_device_id()
to core.c and export that symbol to be used by glue
layers.
Signed-off-by: Felipe Balbi <balbi@ti.com>
The GetStatus (STD)-request is handled the driver and uses a tiny hack
to send the two bytes long answer. This patch removes the custom hack
uses the normal usb_ep_queue() for that.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
If we stall and restart we have to reset also this flag to 0 as there is
nothing pending anymore.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The read and write operation is atomic and we need no locking around
this operations. What we need however is a lock that is held which
ensures that the content of the DWC3_GCTL has not been changed. With
this, the conten may have been change changed after the first but before
our write back.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
We can have three modules here: dwc3.ko, dwc3-omap.ko and dwc3-pci.ko.
The later have already ids-aliases for probing and is fine. The omap
module has alias for DT but lacks alias for the "native"
platform_device. Maybe we should get rid of it and stick to the DT name?
Both glue modules create a new device for which the dwc3.ko module is
responsible and that one lacks the platform alias.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Sometimes the host might be trying to initiate Data or
Status phase for an older Control transfer. In such
situations we must STALL that transfer and restart
the state machine rather than letting such situation
go through the wire.
Signed-off-by: Felipe Balbi <balbi@ti.com>
I have talked to USB-IF about USB30CV issuing SetAddres()
with a device on Configured state and they have agreed on
changing USB30CV not to do so.
Adding back the STALL reply in such case and while at
that, also add a debugging message for an address which
is too large.
Signed-off-by: Felipe Balbi <balbi@ti.com>
The Designware USB3 IP can be configured with
an internal xHCI. If we're running on such a
version, let's start the xHCI stack.
Signed-off-by: Felipe Balbi <balbi@ti.com>
There's no need to add driver_data for something
we can fetch from HW.
This also makes our id_table unnecessary - at least
for now -, so we also remove it on the same patch.
Signed-off-by: Felipe Balbi <balbi@ti.com>
this is mainly for testing. In order to be able
to test if we're enumerating correctly on all
speeds, let that be controlled by a module
parameter.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Without this the gadget will never be able to allocate a stream capable
endpoint. The manual says that the stream id is a 16bit id. It does not
talk about an upper limit in any other way. So I think 15 is a
reasonable limit :)
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
These files uses the full set of MODULE_ macros and so need to
include module.h directly.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
our parameter structures need to be written to
HW, so instead of assuming little endian, we
convert those into bit shifts.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The dwc3 core has internal clock gating support.
Let's allow that to happen by clearing the disable
bit in GCTL register.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
cache the contents of GHWPARAMS* registers in
our device structure for easy access.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
That structure will hold a copy of readonly
GHWPARAMS* registers for ease accessing by
the driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The following patch adds support for streams
to dwc3 driver.
While at that, also fix one small issue on
endpoint disable where we should clear all
flags not only ENABLED.
Reviewied-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We already have the value from gadget drivers,
just need to pass it to our controller.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This makes DWC3_EP_WEDGE do the right thing, which is
prevent DWC3_EP_WEDGE from ever being cleared by a
ClearFeature(HALT) command.
[ balbi@ti.com : allowed set_wedge to send SetHalt command
to controller ]
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
An older version of the databook said to wait for the FIFO to
drain, but that has been removed from the newer databooks.
Waiting for RxFIFO to drain caused problems when testing against
one of the host controllers available in the market.
After talking to one of the RTL engineers, he stated that we
should _not_ wait for RxFIFO to drain.
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
DEPSTARTCFG for non-EP0 EPs must only be sent once per config
[ balbi@ti.com : changed config_start to start_config_issued ]
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some people think that this line is not compatible with the GPL. The
statement was required due to the Buenos Aires Convention and is now
deprecated. I remove it because it is said that it is pointless nowdays.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use "ep0in" and "ep0out" instead "ep1in" and "ep0out" which is confusing
and not consistent with the remaining output.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We already give requests back in dwc3_ep0_stall_and_restart() so
doing it again here will most likely corrupt the list.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The way it was before was really meaningless.
Now it looks saner.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We don't need to care about direction on a two stage
transfer.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
According to USB 3.0 Specification, a SetAddress()
while device is in Configured State has an unspecified
behavior (see Section 9.4.6). Still USB30CV wasn't
happy with my Stall reply.
To make that thing happy, just accept the SetAddress()
always. No problems have been observed thus far.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
It's useful to know which states core is going
through, as it might help us figure out misbehavior
on specific link states.
Signed-off-by: Felipe Balbi <balbi@ti.com>
This flag will tell us which direction we're
expecting on the next (data or status) phase.
It will help us catching errors of host going
crazy and requesting data of the wrong direction.
Signed-off-by: Felipe Balbi <balbi@ti.com>
if req->dma isn't DMA_ADDR_INVALID it means gadget driver
mapped the request or allocated from coherent, so it's
unnecessary to do anything.
Signed-off-by: Felipe Balbi <balbi@ti.com>
If the gadget drivers sends a ZLP we are trying to map this this request
which does not work on all implementations. So we simply skip mapping
it.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
dwc3-wrapper can be used by any other wrapper,
using dwc3-omap makes it clear that we're running
on OMAP SoC.
Signed-off-by: Felipe Balbi <balbi@ti.com>
The OMAP wrapper allows us to either control internal
OTG signals via SW or HW. Different boards might wish
to use one or the other mode of operation. Let's have
have that information passed via platform_data for now.
After DT conversion is finished for OMAP, we can easily
convert this to a DT attribute.
Signed-off-by: Felipe Balbi <balbi@ti.com>
We need to have actual HW in order to implement
and test that part of the code anyway. Until then
it's best to remove it.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Felipe Balbi