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When a transceiver is available use otg_set_power to submit
the target current to it.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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In a few places in the kernel, the code prints
a human-readable USB device speed (eg. "high speed").
This involves a switch statement sometimes wrapped
around in ({ ... }) block leading to code repetition.
To mitigate this issue, this commit introduces
usb_speed_string() function, which returns
a human-readable name of provided speed.
It also changes a few places switch was used to use
this new function. This changes a bit the way the
speed is printed in few instances at the same time
standardising it.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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IDs found in the Windows driver's ZTEusbnet.inf file from the
ZTE MF100 drivers (O2 UK). Also fixes the ZTE MF626 device
since it really is distinct from the 4G Systems stick and
apparently needs the net interface blacklisted too, while
there's no indication (yet) that the 4G Systems stick does.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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blacklist
That's what the blacklist is for...
Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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It's cleaner than the array stuff, and we're about to add a bunch
more blacklist entries. Second, there are devices that need both
the sendsetup and the reserved interface blacklists, which the
current code can't accommodate.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fast-forward merge with Linus to be able to merge patches
based on more recent version of the tree.
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It was pointed out by 'make versioncheck' that linux/version.h was not
always being included where needed and sometimes included needlessly
in drivers/usb/.
This patch fixes up the includes.
For the UVC gadget driver bits, this was ACK'ed by Laurent Pinchart.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This is a resend from the original, changing the title from PATCH to
RFC(since this is a review for commit, and I should have put that the first go around).
and also removing some of the commit's with ia64 and bash since it is significant.
let me know if I might have missed anything etc..
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Several USB power switches (AIC1526 or MIC2026) have a digital output
that is used to notify that an overcurrent situation is taking
place. This digital outputs are typically connected to GPIO inputs of
the processor and can be used to be notified of those overcurrent
situations.
Therefore, we add a new overcurrent_pin[] array in the at91_usbh_data
structure so that boards can tell the AT91 OHCI driver which pins are
used for the overcurrent notification, and an overcurrent_supported
boolean to tell the driver whether overcurrent is supported or not.
The code has been largely borrowed from ohci-da8xx.c and
ohci-s3c2410.c.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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The existing OHCI AT91 driver made the assumption that the enable
input of the USB power switch was active low. However, some USB power
switches such as the Micrel MIC2026-1 [1] have an active high input to
enable the power. A new vbus_pin_inverted attribute is added to the
at91_usbh_data structure so that board files can tell the OHCI driver
if the vbus pin logic is active low or active high.
[1] http://www.micrel.com/page.do?page=product-info/products/mic2026.shtml
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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Remove the cpu_is_at91xxxx() macros in the ohci-at91 driver.
SoCs at91sam9261 and at91sam9g10 expect one additional clock: hck0.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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remove the following two paragraphs as they are not needed:
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc.,59
Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Signed-off-by: Klaus Schwarzkopf <schwarzkopf@sensortherm.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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There is a multi-year old bug in the MUSB hardware which is not documented.
It causes spurious interrupts and have various symptoms, like endless
"SetupEnd came in a wrong ep0stage" messages. The fix is taken from the
FreeBSD's musb driver.
How to reproduce:
For example issue clear-stall on a couple of endpoints very fast,
like one request per 125us. After a while the bug triggers and the
musb-chip becomes unusable until next re-enumeration.
Signed-off-by: Hans Petter Selasky <hps@bitfrost.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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A return value of -EINPROGRESS from pm_runtime_get indicates that
the device is already resuming due to a previous call. Internally,
usb_autopm_get_interface_async doesn't treat this as an error and
increments the usage count, but passes the error status along
to the caller. The logical assumption of the caller is that
any negative return value reflects the device not resuming
and the pm_usage_cnt not being incremented. Since the usage count
is being incremented and the device is resuming, return success (0)
instead.
Signed-off-by: James Wylder <james.wylder@motorola.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch solves two things:
1) Enables autosense emulation code to correctly
interpret descriptor format sense data, and
2) Fixes a bug whereby the autosense emulation
code would overwrite descriptor format sense data
with SENSE KEY HARDWARE ERROR in fixed format, to
incorrectly look like this:
Oct 21 14:11:07 localhost kernel: sd 7:0:0:0: [sdc] Sense Key : Recovered Error [current] [descriptor]
Oct 21 14:11:07 localhost kernel: Descriptor sense data with sense descriptors (in hex):
Oct 21 14:11:07 localhost kernel: 72 01 04 1d 00 00 00 0e 09 0c 00 00 00 00 00 00
Oct 21 14:11:07 localhost kernel: 00 4f 00 c2 00 50
Oct 21 14:11:07 localhost kernel: sd 7:0:0:0: [sdc] ASC=0x4 ASCQ=0x1d
Signed-off-by: Luben Tuikov <ltuikov@yahoo.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The xhci_hcd->devs is an array of pointers rather than pointer to pointer.
Hence this check is not required.
Signed-off-by: Sifram Rajas <Sifram Rajas sifram.rajas@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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In xhci_urb_enqueue(), allocate a block of memory for all the TDs instead
of allocating memory for each of them separately. This reduces the number
of kzalloc calling when an isochronous usb is submitted.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Now that the xHCI driver always return a status value of zero for isochronous
URBs, when the last TD of an isochronous URB is short, the local variable
"status" stays set to -EINPROGRESS. When xHCI driver debugging is turned on,
this causes the log file to fill with messages like this:
[ 38.859282] xhci_hcd 0000:00:14.0: Giveback URB ffff88013ad47800, len = 1408, expected = 580, status = -115
Don't print out the status of an URB for isochronous URBs.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The xHCI host controller in the Intel Panther Point chipset needs to have
software check whether new devices will fit in the available bus
bandwidth. Activate the software bandwidth checking quirk when we find
the right PCI device.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Now that we have a bandwidth interval table per root port or TT that
describes the endpoint bandwidth information, we can finally use it to
check whether the bus bandwidth is oversubscribed for a new device
configuration/alternate interface setting.
The complication for this algorithm is that the bit of hardware logic that
creates the bus schedule is only 12-bit logic. In order to make sure it
can represent the maximum bus bandwidth in 12 bits, it has to convert the
endpoint max packet size and max esit payload into "blocks" (basically a
less-precise representation). The block size for each speed of device is
different, aside from low speed and full speed. In order to make sure we
don't allow a setup where the scheduler might fail, we also have to do the
bandwidth checking in blocks.
After checking that the endpoints fit in the schedule, we store the
bandwidth used for this root port or TT. If this is a FS/LS device under
an external HS hub, we also update the TT bandwidth and the root port
bandwidth (if this is a newly activated or deactivated TT).
I won't go into the details of the algorithm, as it's pretty well
documented in the comments.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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In order to update the root port or TT's bandwidth interval table, we will
need to keep track of a list of endpoints, per interval. That way we can
easily know the new largest max packet size when we have to remove an
endpoint.
Add an endpoint list for each root port or TT structure, sorted by
endpoint max packet size. Insert new endpoints into the list such that
the head of the list always has the endpoint with the greatest max packet
size. Only insert endpoints and update the interval table with new
information when those endpoints are periodic.
Make sure to update the number of active TTs when we add or drop periodic
endpoints. A TT is only considered active if it has one or more periodic
endpoints attached (control and bulk are best effort, and counted in the
20% reserved on the high speed bus). If the number of active endpoints
for a TT was zero, and it's now non-zero, increment the number of active
TTs for the rootport. If the number of active endpoints was non-zero, and
it's now zero, decrement the number of active TTs.
We have to be careful when we're checking the bandwidth for a new
configuration/alt setting. If we don't have enough bandwidth, we need to
be able to "roll back" the bandwidth information stored in the endpoint
and the root port/TT interval bandwidth table. We can't just create a
copy of the interval bandwidth table, modify it, and check the bandwidth
with the copy because we have lists of endpoints and entries can't be on
more than one list. Instead, we copy the old endpoint bandwidth
information, and use it to revert the interval table when the bandwidth
check fails.
We don't check the bandwidth after endpoints are dropped from the interval
table when a device is reset or freed after a disconnect, because having
endpoints use less bandwidth should not push the bandwidth usage over the
limits. Besides which, we can't fail a device disconnect.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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In the upcoming patches, we'll use some stored endpoint information to
make software keep track of the worst-case bandwidth schedule. We need to
store several variables associated with each periodic endpoint:
- the type of endpoint
- Max Packet Size
- Mult
- Max ESIT payload
- Max Burst Size (aka number of packets, stored in one-based form)
- the endpoint interval (normalized to powers of 2 microframes)
All this information is available to the hardware, and stored in its
device output context. However, we need to ensure that the new
information is stored before the xHCI driver drops the xhci->lock to wait
on the Configure Endpoint command, so that another driver requesting a
configuration or alt setting change will see the update. The Configure
Endpoint command will never fail on the hardware that needs this software
bandwidth checking (assuming the slot is enabled and the flags are set
properly), so updating the endpoint info before the command completes
should be fine.
Until we add in the bandwidth checking code, just update the endpoint
information after the Configure Endpoint command completes, and after a
Reset Device command completes. Don't bother to clear the endpoint
bandwidth info when a device is being freed, since the xhci_virt_ep is
just going to be freed anyway.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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For upcoming patches, we need to keep information about the bandwidth
domains under the xHCI host. Each root port is a separate primary
bandwidth domain, and each high speed hub's TT (and potentially each port
on a multi-TT hub) is a secondary bandwidth domain.
If the table were in text form, it would look a bit like this:
EP Interval Sum of Number Largest Max Max Packet
of Packets Packet Size Overhead
0 N mps overhead
...
15 N mps overhead
Overhead is the maximum packet overhead (for bit stuffing, CRC, protocol
overhead, etc) for all the endpoints in this interval. Devices with
different speeds have different max packet overhead. For example, if
there is a low speed and a full speed endpoint that both have an interval
of 3, we would use the higher overhead (the low speed overhead). Interval
0 is a bit special, since we really just want to know the sum of the max
ESIT payloads instead of the largest max packet size. That's stored in
the interval0_esit_payload variable. For root ports, we also need to keep
track of the number of active TTs.
For each root port, and each TT under a root port, store some information
about the bandwidth consumption. Dynamically allocate an array of root
port bandwidth information for the number of root ports on the xHCI host.
Each root port stores a list of TTs under the root port. A single TT hub
only has one entry in the list, but a multi-TT hub will have an entry per
port.
When the USB core says that a USB device is a hub, create one or more
entries in the root port TT list for the hub. When a device is deleted,
and it is a hub, search through the root port TT list and delete all
TT entries for the hub. Keep track of which TT entry is associated with a
device under a TT.
LS/FS devices attached directly to the root port will have usb_device->tt
set to the roothub. Ignore that, and treat it like a primary bandwidth
domain, since there isn't really a high speed bus between the roothub and
the host.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Since the xHCI driver now has split USB2/USB3 roothubs, devices under each
roothub can have duplicate "fake" port numbers. For the next set of
patches, we need to keep track of the "real" port number that the xHCI
host uses to index into the port status arrays.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Move the code to check whether we've reached the host controller's limit
on the number of endpoints out of the two conditional statements, to
remove duplicate code.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The "port" field in xhci_virt_dev stores the port number associated with
one of the two xHCI split roothubs, not the unique port number the xHCI
hardware uses. Since we'll need to store the real hardware port number in
future patches, rename this field to "fake_port".
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Some alternate interface settings have no endpoints associated with them.
This shows up in some USB webcams, particularly the Logitech HD 1080p,
which uses the uvcvideo driver. If a driver switches between two alt
settings with no endpoints, there is no need to issue a configure endpoint
command, because there is no endpoint information to update.
The only time a configure endpoint command with just the add slot flag set
makes sense is when the driver is updating hub characteristics in the slot
context. However, that code never calls xhci_check_bandwidth, so we
should be safe not issuing a command if only the slot context add flag is
set.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch enables DMA mode1 for the RX path when we know
there won't be any short packets. We check that by looking
into the short_no_ok flag, if it's true we enable mode1, otherwise
we use mode0 to transfer the data.
This will result in a throughput performance gain of around
40% for USB mass-storage/mtp use cases.
[ balbi@ti.com : updated commit log and code comments slightly ]
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Moiz Sonasath <m-sonasath@ti.com>
Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Tested-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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On Audio class, the wLength field of the Setup
packet, contains the data payload size of the
following Data phase. Instead of harcoding values,
use wLength.
This also fixes a bug where Gadget driver had to
receive 3 bytes, but it was queueing a ZLP.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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While testing g_audio with HighSpeed UDC on a
FS Hub, we had no configurations to present to
the host. That's because both speeds where
mutually exclusive.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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FSG_NUM_BUFFERS is set to 2 as default.
Usually 2 buffers are enough to establish a good buffering pipeline.
The number may be increased in order to compensate a for bursty VFS
behaviour.
Here follows a description of system that may require more than
2 buffers.
* CPU ondemand governor active
* latency cost for wake up and/or frequency change
* DMA for IO
Use case description.
* Data transfer from MMC via VFS to USB.
* DMA shuffles data from MMC and to USB.
* The CPU wakes up every now and then to pass data in and out from VFS,
which cause the bursty VFS behaviour.
Test set up
* Running dd on the host reading from the mass storage device
* cmdline: dd if=/dev/sdb of=/dev/null bs=4k count=$((256*100))
* Caches are dropped on the host and on the device before each run
Measurements on a Snowball board with ondemand_governor active.
FSG_NUM_BUFFERS 2
104857600 bytes (105 MB) copied, 5.62173 s, 18.7 MB/s
104857600 bytes (105 MB) copied, 5.61811 s, 18.7 MB/s
104857600 bytes (105 MB) copied, 5.57817 s, 18.8 MB/s
FSG_NUM_BUFFERS 4
104857600 bytes (105 MB) copied, 5.26839 s, 19.9 MB/s
104857600 bytes (105 MB) copied, 5.2691 s, 19.9 MB/s
104857600 bytes (105 MB) copied, 5.2711 s, 19.9 MB/s
There may not be one optimal number for all boards. This is why
the number is added to Kconfig. If selecting USB_GADGET_DEBUG_FILES
this value may be set by a module parameter as well.
Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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This patch (as1481) fixes a problem affecting g_file_storage and
g_mass_storage when running at SuperSpeed. The two drivers currently
assume that the bulk-out maxpacket size can evenly divide the SCSI
block size, which is 512 bytes. But SuperSpeed bulk endpoints have a
maxpacket size of 1024, so the assumption is no longer true.
This patch removes that assumption from the drivers, by getting rid of
a small optimization (they try to align VFS reads and writes on page
cache boundaries). If a command's starting logical block address is
512 bytes below the end of a page, it's not okay to issue a USB
command for just those 512 bytes when the maxpacket size is 1024 -- it
would result in either babble (for an OUT transfer) or a short packet
(for an IN transfer).
Also, for backward compatibility, the test for writes extending beyond
the end of the backing storage has to be changed. If the host tries
to do this, we should accept the data that fits in the backing storage
and ignore the rest. Because the storage's end may not align with a
USB packet boundary, this means we may have to accept a USB OUT
transfer that extends beyond the end of the storage and then write out
only the part of the data that fits.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Now the mass storage driver has fixed logic block size of 512 bytes.
The mass storage gadget read/write bound devices only through VFS, so the
bottom level devices actually are just RAW devices to the driver and connected
PC. As a RAW, hosts can always format, read and write it right in 512 bytes
logic block and don't care about the actual logic block size of devices bound
to the gadget.
But if we want to share the bound block device partition between target board
and PC, in case the logic block size of the bound block device is 4KB, we
execute the following steps:
1. connect a board with mass storage gadget to PC(the board has set one
partition of on-board block device as file name of the mass storage)
2. PC format the mass storage to VFAT by default logic block size and
read/write it
3. disconnect boards from PC
4. target board mount the partition as VFAT
Step 4 will fail since kernel on target thinks the logic block size of the
bound partition as 4KB.
A typical error is "FAT: logical sector size too small for device (logical
sector size = 512)"
If we execute opposite steps:
1. format the partition to VFAT on target board and read/write this partition
2. connect the board to Windows PC as usb mass storage gadget, windows will
think the disk is not formatted
So the conclusion is that only as a gadget, the mass storage driver has no any
problem. But being shared VFAT or other filesystem on PC and target board, it
will fail.
This patch adapts logic block size to bound block devices and fix the issue.
Cc: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Peiyu Li <peiyu.li@csr.com>
Signed-off-by: Xianglong Du <xianglong.du@csr.com>
Signed-off-by: Huayi Li <huayi.li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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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>
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For now, let's disable IDLE and STANDBY transitions
until we have a real HW to validate against.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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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>
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if we don't, the list will be busy forever.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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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>
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ensure a few bits are cleared before enabling
what we need.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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We must ensure that those bits aren't set as
they should only be used in simulation.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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that should be 1 << 16, not 16. Caused so many
problems and we never caught it before.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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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>
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In order to ACK the IRQ we must write back
to the same register the bits we read.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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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>
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We need that header because of THIS_MODULE.
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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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>
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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>
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trivial patch, no functional changes.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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