Commit Graph

902 Commits

Author SHA1 Message Date
Peter Chen
58efd4b06d usb: phy: change some comments
- Replace all "transceiver" with "phy"
- Replace one "OTG controller" with "phy"

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-27 10:54:31 -05:00
Robert Baldyga
b0bac2581c usb: gadget: introduce 'enabled' flag in struct usb_ep
This patch introduces 'enabled' flag in struct usb_ep, and modifies
usb_ep_enable() and usb_ep_disable() functions to encapsulate endpoint
enabled/disabled state. It helps to avoid enabling endpoints which are
already enabled, and disabling endpoints which are already disables.

From now USB functions don't have to remember current endpoint
enable/disable state, as this state is now handled automatically which
makes this API less bug-prone.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-27 10:54:31 -05:00
Robert Baldyga
b67f628c84 usb: gadget: epautoconf: add usb_ep_autoconfig_release() function
This patch introduces usb_ep_autoconfig_release() function which allows
to release endpoint previously obtained from usb_ep_autoconfig() during
USB function bind.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-27 10:54:31 -05:00
Bin Liu
9b7537642c usb: musb: set the controller speed based on the config setting
Set the Power register HSENAB bit based on musb->config->maximum_speed,
so that the glue layer can control MUSB to work in high- or full-speed.

Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-27 10:54:31 -05:00
Stefan Koch
ff8e2c560e usb: interface authorization: Use a flag for the default device authorization
With this patch a flag instead of a variable
is used for the default device authorization.

Signed-off-by: Stefan Koch <stefan.koch10@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-22 12:08:40 -07:00
Stefan Koch
6b2bd3c8c6 usb: interface authorization: Introduces the default interface authorization
Interfaces are allowed per default.
This can disabled or enabled (again) by writing 0 or 1 to
/sys/bus/usb/devices/usbX/interface_authorized_default

Signed-off-by: Stefan Koch <stefan.koch10@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-22 12:08:40 -07:00
Stephen Rothwell
b84ee0d7f3 cdc: add header guards
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-15 21:53:24 -07:00
David S. Miller
ad1e7b97b3 cdc: Fix build warning.
In file included from drivers/usb/gadget/function/u_serial.h:16:0,
                    from drivers/usb/gadget/function/f_acm.c:23:
>> include/linux/usb/cdc.h:47:5: warning: 'struct usb_interface' declared inside parameter list
        int buflen);
        ^
>> include/linux/usb/cdc.h:47:5: warning: its scope is only this definition or declaration, which is probably not what you want

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-15 13:25:03 -07:00
Oliver Neukum
c40a2c8817 CDC: common parser for extra headers
CDC drivers all implement their own parser for the extra headers.
This patch fixes the code duplication introducing a single common
parser in usbnet.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-15 12:43:11 -07:00
Greg Kroah-Hartman
12e1a6a0f1 Revert "usb: interface authorization: Introduces the default interface authorization"
This reverts commit 1d958bef45 as the
signed-off-by address is invalid.

Cc: Stefan Koch <stefan.koch10@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-18 09:58:45 -07:00
Greg Kroah-Hartman
a1b93ab715 Revert "usb: interface authorization: Use a flag for the default device authorization"
This reverts commit 3cf1fc8065 as the
signed-off-by address is invalid.

Cc: Stefan Koch <stefan.koch10@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-18 09:56:04 -07:00
Stefan Koch
3cf1fc8065 usb: interface authorization: Use a flag for the default device authorization
With this patch a flag instead of a variable
is used for the default device authorization.

Signed-off-by: Stefan Koch <skoch@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-14 16:57:14 -07:00
Stefan Koch
1d958bef45 usb: interface authorization: Introduces the default interface authorization
Interfaces are allowed per default.
This can disabled or enabled (again) by writing 0 or 1 to
/sys/bus/usb/devices/usbX/interface_authorized_default

Signed-off-by: Stefan Koch <skoch@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-14 16:54:30 -07:00
Greg Kroah-Hartman
37a842d36f USB: chipidea updates for v4.3-rc1
The main changes are adding several system interfaces for
 tuning performance, and each vendors can adjust them according
 to their design configurations.
 
 Others are tiny improvements, like more well siTD supports,
 USB_DEVICE_A_HNP_SUPPORT supports, etc.
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Merge tag 'usb-ci-v4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next

Peter writes:

USB: chipidea updates for v4.3-rc1

The main changes are adding several system interfaces for
tuning performance, and each vendors can adjust them according
to their design configurations.

Others are tiny improvements, like more well siTD supports,
USB_DEVICE_A_HNP_SUPPORT supports, etc.
2015-08-14 16:43:09 -07:00
Greg Kroah-Hartman
a3fbedf98f usb: patches for v4.3 merge window
New support for Allwinne SoC on the MUSB driver has been added to the list of
 glue layers. MUSB also got support for building all DMA engines in one binary;
 this will be great for distros.
 
 DWC3 now has no trace of dev_dbg()/dev_vdbg() usage. We will rely solely on
 tracing to debug DWC3. There was also a fix for memory corruption with EP0 when
 maxpacket size transfers are > 512 bytes.
 
 Robert's EP capabilities flags is making EP selection a lot simpler. UDCs are
 now required to set these flags up when adding endpoints to the framework.
 
 Other than these, we have the usual set of miscelaneous cleanups and minor
 fixes.
 
 Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.3 merge window

New support for Allwinne SoC on the MUSB driver has been added to the list of
glue layers. MUSB also got support for building all DMA engines in one binary;
this will be great for distros.

DWC3 now has no trace of dev_dbg()/dev_vdbg() usage. We will rely solely on
tracing to debug DWC3. There was also a fix for memory corruption with EP0 when
maxpacket size transfers are > 512 bytes.

Robert's EP capabilities flags is making EP selection a lot simpler. UDCs are
now required to set these flags up when adding endpoints to the framework.

Other than these, we have the usual set of miscelaneous cleanups and minor
fixes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-08-14 16:41:11 -07:00
Peter Chen
96625eadca usb: chipidea: add tx/rx burst size configuration interface
The user can adjust it through dts or platform data

Signed-off-by: Peter Chen <peter.chen@freescale.com>
2015-08-14 10:03:58 +08:00
Peter Chen
65668718f2 usb: chipidea: add ahb burst configuration interface
The users can change it through dts or platform data if they
want to change the default value.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
2015-08-14 10:03:55 +08:00
Peter Chen
8022d3d51c usb: chipidea: define stream mode disable for both roles
The system bus and chipidea IP have different limitations for
both host and device mode.
For example, with below errata, we need to enable SDIS(Stream Disable
Mode) at host mode. But we don't want it for device mode at the
same system.

TAR 9000378958
Title: Non-Double Word Aligned Buffer Address Sometimes Causes Host to
Hang on OUT Retry
Impacted Configuration: Host mode, all transfer types
Description:
The host core operating in streaming mode may under run while sending
the data packet of an OUT transaction. This under run can occur if
there are unexpected system delays in fetching the remaining packet
data from memory. The host forces a bad CRC on the packet, the device
detects the error and discards the packet. The host then retries a Bulk,
Interrupt, or Control transfer if an under run occurs according to the
USB specification. During simulations, it was found that the host does
not issue the retry of the failed bulk OUT. It does not issue any other
transactions except SOF packets that have incorrect frame numbers.

The second failure mode occurs if the under run occurs on an ISO OUT
transaction and the next ISO transaction is a zero byte packet. The host
does not issue any transactions (including SOFs). The device detects a
Suspend condition, reverts to full speed, and waits for resume signaling.

A third failure mode occurs when the host under runs on an ISO OUT and
the next ISO in the schedule is an ISO OUT with two max packets of 1024
bytes each. The host should issue MDATA for the first OUT followed by
DATA1 for the second. However, it drops the MDATA transaction, and
issues the DATA1 transaction.

The system impact of this bug is the same regardless of the failure mode
observed. The host core hangs, the ehci_ctrl state machine waits for the
protocol engine to send the completion status for the corrupted
transaction, which never occurs. No indication is sent to the host
controller driver, no register bits change and no interrupts occur.
Eventually the requesting application times out.

Detailed internal behavior:
The EHCI control state machine (ehci_ctrl) in the DMA block is responsible
for parsing the schedules and initiating all transactions. The ehci_ctrl
state machine passes the transaction details to the protocol block by
writing the transaction information in to the TxFIFO. It then asserts
the pe_hst_run_pkt signal to inform the host protocol state machine
(pe_hst_state) that there is a packet in the TxFIFO.
A tag of 0x0 indicates a start of packet with the data providing the
following information:

35:32 Tag
31:30 Reserved
29:23 Endpoint (lowest 4 bits)
22:16 Address
15:10 Reserved
9:8 Endpoint speed
7:6 Endpoint type
5:6 Data Toggle
3:0 PID
The pe_hst_state reads the packet information and constructs the packet
and issues it to the PHY interface.
The ehci_ctrl state machine writes the start transaction information in
to the TxFIFO as 0x03002910c for the OUT packet that had the under run
error. However, it writes 0xC3002910C for the retry of the Out
transaction, which is incorrect.
The pe_hst_state enters a bus timeout state after sending the bad CRC
for the packet that under ran. It then purges any data that was back
filled in to the TxFIFO for the packet that under ran. The pe_hst_state
machine stops purging the TxFIFO when it is empty or if it reads a
location that has a tag of 0x0, indicating a start of packet command.

The pe_hst_state reads 0xC3002910C and discards it as it does not decode
to a start of packet command. It continues to purge the OUT data that
has been pre-buffered for the OUT retry . The pe_hst_state detects the
hst_packet_run signal and attempts to read the PID and address
information from the TxFIFO. This location has packet data and so does
not decode to a valid PID and so falls through to the PE_HST_SOF_LOAD
state where the frame_num_counter is updated. The frame_num_counter
is updated with the data in the TxFIFO. In this case, the data is
incorrect as the ehci_ctrl state machine did not initiate the load.
The hst_pe_state machine detects the SOF request signal and sends an
SOF with the bad frame number. Meanwhile, the ehci_ctrl state machine
waits indefinitely in the run_pkt state waiting for the completion
status from pe_hst_state machine, which will never happen.

The ISO failure case is similar except that there is no retry for ISO.
The ehci_ctrl state machine moves to the next transfer in the periodic
schedule. If the under run occurs on the last entry of the periodic
list then it moves to the Async schedule.

In the case of ISO OUT simulations, the next ISO is a zero byte OUT
and again the start of packet command gets corrupted. The TxFIFO is
empty when the hst_pe_state attempts to read the Address and PID
information as the transaction is a zero byte packet. This results
in the hst_pe_state machine staying in the GET_PID state, which means
that it does not issue any transactions (including SOFs). The device
detects a Suspend condition and reverts to full speed mode and waits
for a Resume or Reset signal.

The EHCI specification allows a Non-DoubleWord (32 bits) offset to
be used as a current offset for Buffer Pointer Page 0 of the qTD.
In Non-DoubleWord aligned cases, the core reads the packet data
from the AHB memory, performs the alignment operation before writing
it in to the TxFIFO as a 32 bit data word. An End Of Packet tag (EOP)
is written to the TxFIFO after all the packet data has been written
in to the TxFIFO. The alignment function is reset to Idle by the EOP
tag. The corruption of the start of packet command arises because the
packet buffer for the OUT transaction that under ran is not aligned
to a DoubleWord, and hence no EOP tag is written to the TxFIFO. The
alignment function is still active when the start packet information
is written in to the TxFIFO for the retry of the bulk packet or for
the next transaction in the case of an under run on an ISO. This
results in the corruption of the start tag and the transaction
information.

Click for waveform showing the command 0x 0000300291 being written in
to the TX FIFO for the Out that under ran.
Click for waveform showing the command 0xC3002910C written to the
TxFIFO instead of 0x 0000300291
Versions affected: Versions 2.10a and previous versions
How discovered: Customer simulation

Workaround:
1- The EHCI specification allows a non-DoubleWord offset to be used
as a current offset for Buffer Pointer Page 0 of the qTD. However,
if a DoubleWord offset is used then this issue does not arise.
2- Use non streaming mode to eliminate under runs.

Resolution:
The fix involves changes to the traffic state machine in the
vusb_hs_dma_traf block. The ehci_ctrl state machine updates the context
information by encoding the transaction results on the
hst_op_context_update signals at the end of a transaction. The signal
hst_op_context_update is added to the traffic state machine, and the
tx_fifo_under_ran_r signal is generated if the transaction results in
an under run error. Click for waveform

The traffic state machine then traverses to the do_eop states if the
tx_fifo_under_ran error is asserted. Thus an EOP tag is written in to
the TxFIFO as shown in this waveform .

The EOP tag resets the align state machine to the Idle state ensuring
that the next command written by the echi_ctrl state machine does not
get corrupted.

File(s) modified:
RTL code fixed: …..
Method of reproducing: This failure cannot be reproduced in the current
test bench.
Date Found: March 2010
Date Fixed: June 2010
Update information:
Added the RTL code fix

Signed-off-by: Peter Chen <peter.chen@freescale.com>
2015-08-14 09:16:46 +08:00
Peter Chen
df96ed8dce usb: chipidea: introduce ITC tuning interface
ITC (Interrupt Threshold Control) is used to set the maximum rate at which
the host/device controller will issue interrupts. The default value is 8 (1ms)
for it. EHCI core will modify it to 1, but device mode keeps it as default
value.

In some use cases like Android ADB, it only has one usb request for each
direction, and maximum payload data is only 4KB, so the speed is 4MB/s
at most, it needs controller to trigger interrupt as fast as possible
to increase the speed. The USB performance will be better if the interrupt
can be triggered faster.

Reduce ITC value is benefit for USB performance, but the interrupt number
is increased at the same time, it may increase cpu utilization too.
Most of use case cares about performance, but some may care about
cpu utilization, so, we leave a platform interface for user.
We set ITC as 1 (1 micro-frame) as default value which is aligned
with ehci core default value.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
2015-08-14 09:13:11 +08:00
Peter Chen
2836267312 usb: chipidea: add ttctrl.ttha control interface
The register of ttctrl.ttha describes like below:
- Internal TT Hub Address Representation
- RW
- Default = 0000000b
This field is used to match against the Hub Address field in QH & siTD
to determine if the packet is routed to the internal TT for directly
attached FS/LS devices. If the Hub Address in the QH or siTD does not
match this address then the packet will be broadcast on the High Speed
ports destined for a downstream High Speed hub with the address in the QH/siTD.

In silicon RTL, this entry only affects QH and siTD, and the hub.addr at
both QH and siTD are 0 in ehci core for chipidea (with hcd->has_tt = 1).

So, for QH, if the "usage_tt" flag at RTL is 0, set CI_HDRC_SET_NON_ZERO_TTHA
will not affect QH (with non-hs device); for siTD, set this flag
will change remaining space requirement for the last transaction from 1023
bytes to 188 bytes, it can increase the number of transactions within one
frame, ehci periodic schedule code will not queue the packet if the frame space
is full, so it is safe to set this flag for siTD.

With this flag, it can fix the problem Alan Stern reported below:
http://www.spinics.net/lists/linux-usb/msg123125.html
And may fix Michael Tessier's problem too.
http://www.spinics.net/lists/linux-usb/msg118679.html

CC: stern@rowland.harvard.edu
CC: michael.tessier@axiontech.ca
Signed-off-by: Peter Chen <peter.chen@freescale.com>
2015-08-14 09:13:10 +08:00
Tal Shorer
7e34d70a71 usb: hcd.h: Fix the values of SetHubDepth and GetPortErrorCount to match USB 3.1 specification
>From the usb 3.1 spec available at http://www.usb.org/developers/docs/
table 10-7 (Hub Class Requests) specifies the values for SetHubDepth and
GetPortErrorCount as:

Request			bmRequestType	bRequest		wValue		wIndex	wLength	Data
SetHubDepth		00100000B	SET_HUB_DEPTH		Hub Depth	Zero	Zero	None
GetPortErrorCount	10100011B	GET_PORT_ERR_COUNT	Zero		Port	Two	Number of Link Errors on this port

Fix these two values to match the spec.

Signed-off-by: Tal Shorer <tal.shorer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-08 15:17:31 -07:00
Robert Baldyga
b0aea0037c usb: gadget: move find_ep() from epautoconf to udc-core
Move find_ep() to udc-core and rename it to gadget_find_ep_by_name().
It can be used in UDC drivers, especially in 'match_ep' callback after
moving chip-specific endpoint matching logic from epautoconf to UDC
drivers.

Replace all calls of find_ep() function with gadget_find_ep_by_name().

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-08-06 09:33:14 -05:00
Robert Baldyga
4278c687f6 usb: gadget: move ep_matches() from epautoconf to udc-core
Move ep_matches() function to udc-core and rename it to
usb_gadget_ep_match_desc(). This function can be used by UDC drivers
in 'match_ep' callback to avoid writing lots of repetitive code.

Replace all calls of ep_matches() with usb_gadget_ep_match_desc().

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-08-06 09:32:57 -05:00
Robert Baldyga
596c154d62 usb: gadget: add 'ep_match' callback to usb_gadget_ops
Add callback that is called by epautoconf to allow UDC driver match the
best endpoint for specific descriptor. It's intended to supply mechanism
which allows to get rid of chip-specific endpoint matching code from
epautoconf.

If gadget has set 'ep_match' callback we prefer to call it first, and
if it fails to find matching endpoint, then we try to use default matching
algorithm.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-08-06 09:31:45 -05:00
Robert Baldyga
80e6e3847f usb: gadget: add endpoint capabilities helper macros
Add macros useful while initializing array of endpoint capabilities
structures. These macros makes structure initialization more compact
to decrease number of code lines and increase readability of code.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-08-04 12:25:09 -05:00
Robert Baldyga
734b5a2add usb: gadget: add endpoint capabilities flags
Introduce struct usb_ep_caps which contains information about capabilities
of usb endpoints - supported transfer types and directions. This structure
should be filled by UDC driver for each of its endpoints, and will be
used in epautoconf in new ep matching mechanism which will replace ugly
guessing of endpoint capabilities basing on its name.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-08-04 12:24:46 -05:00
Robert Baldyga
cc476b42a3 usb: gadget: encapsulate endpoint claiming mechanism
So far it was necessary for usb functions to set ep->driver_data in
endpoint obtained from autoconfig to non-null value, to indicate that
endpoint is claimed by function (in autoconfig it was checked if endpoint
has set this field to non-null value, and if it has, it was assumed that
it is claimed). It could cause bugs because if some function doesn't
set this field autoconfig could return the same endpoint more than one
time.

To help to avoid such bugs this patch adds claimed flag to struct usb_ep,
and  encapsulates endpoint claiming mechanism inside usb_ep_autoconfig_ss()
and usb_ep_autoconfig_reset(), so now usb functions don't need to perform
any additional actions to mark endpoint obtained from autoconfig as claimed.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-08-04 12:24:05 -05:00
Ivan T. Ivanov
6f98f545b0 usb: phy: msm: Add D+/D- lines route control
apq8016-sbc board is using Dual SPDT USB Switch (TC7USB40MU),
witch is controlled by GPIO to de/multiplex D+/D- USB lines to
USB2513B Hub and uB connector. Add support for this.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-30 11:43:36 -05:00
Robert Baldyga
ca1023c81d usb: gadget: add 'quirk_zlp_not_supp' to usb_gadget
Due to some UDC controllers may not support zlp, usb gadget layer
needs to provide a generic way to inform gadget functions about non-standard
hardware limitations.

This patch adds 'quirk_zlp_not_supp' field to struct usb_gadget and helper
function gadget_is_zlp_supported(). It also sets 'quirk_zlp_not_supp'
to 1 in musb UDC driver, which has such limitation.

[ balbi@ti.com : make it build ]

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-30 11:43:35 -05:00
Robert Baldyga
02ded1b0d8 usb: gadget: add 'quirk_stall_not_supp' to usb_gadget
Due to some UDC controllers may not support stalling, usb gadget layer
needs to provide a generic way to inform gadget functions about non-standard
hardware limitations.

This patch adds 'quirk_stall_not_supp' field to struct usb_gadget and helper
function gadget_is_stall_supported(). It also sets 'quirk_stall_not_supp'
to 1 in at91_udc driver, which has such limitation.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-30 11:43:35 -05:00
Robert Baldyga
ffd9a0fcbb usb: gadget: add 'quirk_altset_not_supp' to usb_gadget
Due to some UDC controllers may not support altsettings, usb gadget layer
needs to provide a generic way to inform gadget functions about non-standard
hardware limitations.

This patch adds 'quirk_altset_not_supp' field to struct usb_gadget and helper
function gadget_is_altset_supported(). It also sets 'quirk_altset_not_supp'
to 1 in pxa25x_udc and pxa27x_udc drivers, which have such limitation.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-30 11:43:35 -05:00
Li Jun
d1606dfb98 usb: gadget: add usb otg descriptor allocate and init interface
Allocate usb otg descriptor and initialize it according to gadget's otg
capabilities, if usb_otg_caps is not set, keep settings as current gadget
drivers. With this 2 new interfaces, gadget can use usb_otg_descriptor
for OTG 1.x, and usb_otg20_descriptor for OTG 2.0 or above, and otg
features can be decided by the combination of usb hardware property
and driver config.

Signed-off-by: Li Jun <jun.li@freescale.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:21 -05:00
Li Jun
79742351c8 usb: chipidea: set usb otg capabilities
Init and update otg capabilities by DT, set gadget's otg capabilities
accordingly.

Acked-by: Peter Chen <peter.chen@freescale.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:21 -05:00
Li Jun
929412d94f usb: common: add API to update usb otg capabilities by device tree
Check property of usb hardware to update otg version and disable SRP, HNP
and ADP if its disable flag is present.

Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:21 -05:00
Macpaul Lin
84704bb3d1 usb: add usb_otg_caps to usb_gadget structure.
Add usb_otg_caps pointer to usb_gadget structure to indicate its
otg capabilities.

Signed-off-by: Macpaul Lin <macpaul@gmail.com>
Signed-off-by: Li Jun <jun.li@freescale.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:20 -05:00
Li Jun
6a88bbe8e3 usb: otg: add usb_otg_caps structure for otg capabilities
This patch adds a structure usb_otg_caps to cover all otg related
capabilities of the device, including otg revision, and if hnp/srp/adp
is supported.

Signed-off-by: Li Jun <jun.li@freescale.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:20 -05:00
Robert Baldyga
d5bb9b81db usb: composite: add bind_deactivated flag to usb_function
This patch introduces 'bind_deactivated' flag in struct usb_function.
Functions which don't want to be activated automatically after bind should
set this flag, and when they start to be ready to work they should call
usb_function_activate().

When USB function sets 'bind_deactivated' flag, initial deactivation
counter is incremented automatically, so there is no need to call
usb_function_deactivate() in function bind.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:19 -05:00
Robert Baldyga
ccdf138fe3 usb: gadget: add usb_gadget_activate/deactivate functions
These functions allows to deactivate gadget to make it not visible to
host and make it active again when gadget driver is finally ready.

They are needed to fix usb_function_activate() and usb_function_deactivate()
functions which currently are not working as usb_gadget_connect() is
called immediately after function bind regardless to previous calls of
usb_gadget_disconnect() function.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:19 -05:00
Chanwoo Choi
83b7b67c78 usb: phy: msm-usb: Replace deprecated API of extcon
This patch removes the deprecated notifier API of extcon framwork
and then use the new extcon API with the unique id to indicate
the each external connector (USB, USB-HOST).

Alter deprecated API as following:
- extcon_register_interest() -> extcon_register_notifier()
- extcon_get_cable_state(*edev, char *) -> extcon_get_cable_state_(*edev, id)

Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:18 -05:00
Enrico Mioso
4a0e3e989d cdc_ncm: Add support for moving NDP to end of NCM frame
NCM specs are not actually mandating a specific position in the frame for
the NDP (Network Datagram Pointer). However, some Huawei devices will
ignore our aggregates if it is not placed after the datagrams it points
to. Add support for doing just this, in a per-device configurable way.
While at it, update NCM subdrivers, disabling this functionality in all of
them, except in huawei_cdc_ncm where it is enabled instead.
We aren't making any distinction between different Huawei NCM devices,
based on what the vendor driver does. Standard NCM devices are left
unaffected: if they are compliant, they should be always usable, still
stay on the safe side.

This change has been tested and working with a Huawei E3131 device (which
works regardless of NDP position), a Huawei E3531 (also working both
ways) and an E3372 (which mandates NDP to be after indexed datagrams).

V1->V2:
- corrected wrong NDP acronym definition
- fixed possible NULL pointer dereference
- patch cleanup
V2->V3:
- Properly account for the NDP size when writing new packets to SKB

Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-09 14:58:31 -07:00
Greg Kroah-Hartman
e152813ff5 usb: patches for v4.2 merge window
- dwc2 adds hibernation support
 - preparation for sunxi glue to musb driver
 - new ULPI bus
 - new ULPI PHY driver for TUSB1210
 - musb patches to support multiple DMA engines on same binary
 - support for R-Car E2 on renesas_usbhs
 
 Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.2 merge window

- dwc2 adds hibernation support
- preparation for sunxi glue to musb driver
- new ULPI bus
- new ULPI PHY driver for TUSB1210
- musb patches to support multiple DMA engines on same binary
- support for R-Car E2 on renesas_usbhs

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-06-02 10:47:03 +09:00
Abhishek Bist
f0e6a326de USB: hcd.h : Removed an unnecessary function prototype usb_find_interface_driver()
This function is used to call in early version of linux kernel in order
to find out the interface used by a usb device. But now it's use is
completely abolished. So,it would be relevant to remove this obselete
function from kernel mainline.

Signed-off-by: Abhishek Bist <ishubist@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-31 15:51:23 +09:00
Arnd Bergmann
307c858bc2 usb: phy: add static inline wrapper for devm_usb_get_phy_by_node
The newly introduced devm_usb_get_phy_by_node function only has
an extern declaration, but no alternative for the case that
CONFIG_USB_PHY is disabled, which leads to a build error when
it is used anyway:

drivers/power/twl4030_charger.c: In function 'twl4030_bci_probe':
drivers/power/twl4030_charger.c:648:23: error: implicit declaration of function 'devm_usb_get_phy_by_node' [-Werror=implicit-function-declaration]
    bci->transceiver = devm_usb_get_phy_by_node(

This adds the wrapper in the same way that we have one for
all other usb-phy API functions.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: e842b84c8e ("usb: phy: Add interface to get phy give of device_node.")
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-28 09:15:32 -05:00
NeilBrown
e842b84c8e usb: phy: Add interface to get phy give of device_node.
Split the "get phy from device_node" functionality out of
"get phy by phandle" so it can be used directly.

This is useful when a battery-charger is intimately associated with a
particular phy but handled by a separate driver.  The charger
can find the device_node based on sibling relationships
without the need for a redundant declaration in the devicetree
description.

As a peripheral that gets a phy will often want to register a
notifier block, and de-register it later, that functionality
is included so the de-registration is automatic.

Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-26 10:42:28 -05:00
Mian Yousaf Kaukab
c65c4f052b usb: gadget: net2280: fix use of GPEP in both directions
USB3380 enhanced mode allows GPEP to be used in both IN and OUT
directions. However, IN and OUT endpoints must use same USB endpoint
address (bEndpointAddress). Fix this by setting the ep_cfg.ep_number
during initialization and keep it in net2280_enable()

Tested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-26 10:40:16 -05:00
Mian Yousaf Kaukab
a09e23f53e usb: gadget: net2280: check interrupts for all endpoints
USB3380 in enhanced mode has 4 IN and 4 OUT endpoints. Check
interrupts for all of them.

Tested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-26 10:40:11 -05:00
Yoshihiro Shimoda
e0213bc546 usb: renesas_usbhs: Change USBHS_TYPE_R8A779x to USBHS_TYPE_RCAR_GEN2
Since the HSUSB controllers of R-Car Gen2 are the same specification
(they have 16 pipes and usb-dmac), this patch changes USBHS_TYPE_R8A7790
and USBHS_TYPE_R8A7791 to USBHS_TYPE_RCAR_GEN2.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-26 10:39:39 -05:00
Heikki Krogerus
289fcff4bc usb: add bus type for USB ULPI
UTMI+ Low Pin Interface (ULPI) is a commonly used PHY
interface for USB 2.0. The ULPI specification describes a
standard set of registers which the vendors can extend for
their specific needs. ULPI PHYs provide often functions
such as charger detection and ADP sensing and probing.

There are two major issues that the bus type is meant to
tackle:

Firstly, ULPI registers are accessed from the controller.
The bus provides convenient method for the controller
drivers to share that access with the actual PHY drivers.

Secondly, there are already platforms that assume ULPI PHYs
are runtime detected, such as many Intel Baytrail based
platforms. They do not provide any kind of hardware
description for the ULPI PHYs like separate ACPI device
object that could be used to enumerate a device from.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-13 12:04:55 -05:00
Ivan T. Ivanov
44e42ae3a3 usb: phy: msm: Manual PHY and LINK controller VBUS change notification
VBUS is not routed to USB PHY on recent Qualcomm platforms. USB controller
must see VBUS in order to pull-up DP when setting RS bit. Henc configure
USB PHY and LINK registers sense VBUS and enable manual pullup on D+ line.

Cc: Vamsi Krishna <vskrishn@codeaurora.org>
Cc: Mayank Rana <mrana@codeaurora.org>
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-04-28 11:49:15 -05:00
Ivan T. Ivanov
591fc116f3 usb: phy: msm: Use extcon framework for VBUS and ID detection
On recent Qualcomm platforms VBUS and ID lines are not routed to
USB PHY LINK controller. Use extcon framework to receive connect
and disconnect ID and VBUS notification.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-04-28 11:46:50 -05:00
Greg Kroah-Hartman
b7a4abb674 Merge 4.0-rc7 into usb-next
We want the fixes in here, and to help resolve merge issues.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-07 11:17:34 +02:00
Ben Hutchings
7a1e890e21 usbnet: Fix tx_bytes statistic running backward in cdc_ncm
cdc_ncm disagrees with usbnet about how much framing overhead should
be counted in the tx_bytes statistics, and tries 'fix' this by
decrementing tx_bytes on the transmit path.  But statistics must never
be decremented except due to roll-over; this will thoroughly confuse
user-space.  Also, tx_bytes is only incremented by usbnet in the
completion path.

Fix this by requiring drivers that set FLAG_MULTI_FRAME to set a
tx_bytes delta along with the tx_packets count.

Fixes: beeecd42c3 ("net: cdc_ncm/cdc_mbim: adding NCM protocol statistics")
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
2015-03-29 12:06:45 -07:00
Ben Hutchings
1e9e39f4a2 usbnet: Fix tx_packets stat for FLAG_MULTI_FRAME drivers
Currently the usbnet core does not update the tx_packets statistic for
drivers with FLAG_MULTI_PACKET and there is no hook in the TX
completion path where they could do this.

cdc_ncm and dependent drivers are bumping tx_packets stat on the
transmit path while asix and sr9800 aren't updating it at all.

Add a packet count in struct skb_data so these drivers can fill it
in, initialise it to 1 for other drivers, and add the packet count
to the tx_packets statistic on completion.

Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Tested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 12:06:43 -07:00
Li Jun
2f8a467a11 usb: otg-fsm: move 2 otg fsm timers definition to otg_fsm_timer
B_DATA_PLS(data-line pulse time) and B_SSEND_SRP(session end to SRP init) are
also from OTG&EH 2.0 Specification and they are not chipidea specific.

Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-26 10:54:39 +01:00
Greg Kroah-Hartman
1c41a9570a usb: patches for v4.1 merge window
As usual, a big pile of commits. This time a total
 of 111 non-merge commits.
 
 Other than the usual set of cleanups and non-critical
 fixes, we have some interesting work for AM335x's MUSB
 babble recovery. Now that takes a lot less time and we
 don't have to Reset MUSB all the time.
 
 The printer gadget has been converted to configfs interface
 and the atmel udc has learned suspend/resume with wakeup.
 
 Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.1 merge window

As usual, a big pile of commits. This time a total
of 111 non-merge commits.

Other than the usual set of cleanups and non-critical
fixes, we have some interesting work for AM335x's MUSB
babble recovery. Now that takes a lot less time and we
don't have to Reset MUSB all the time.

The printer gadget has been converted to configfs interface
and the atmel udc has learned suspend/resume with wakeup.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-24 22:57:49 +01:00
Peter Chen
628ef0d273 usb: udc: add usb_udc_vbus_handler
This commit updates udc core vbus status, and try to connect
or disconnect gadget.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-19 11:26:03 -05:00
Peter Chen
dfea9c9483 usb: udc: store usb_udc pointer in struct usb_gadget
Instead of iterate to find usb_udc according to usb_gadget, this
way is easier.

Alan Stern suggests this way too:
http://marc.info/?l=linux-usb&m=142168496528894&w=2

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-19 11:25:46 -05:00
Stephen Boyd
32fc9eb5b2 usb: phy: msm: Remove dead code
This code is no longer used now that mach-msm has been removed.
Delete it.

Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Cc: David Brown <davidb@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-18 17:27:03 +01:00
Li Jun
6adb9b7b5f usb: chipidea: add a flag for turn on vbus early for host
Some usb PHYs need power supply from vbus to make it work, eg mxs-phy, if
there is no vbus, USB PHY will not in correct state when the controller starts
to work, for host, this requires vbus should be turned on before setting port
power(PP) of ehci, to work with this kind of USB PHY design, this patch adds
a flag CI_HDRC_TURN_VBUS_EARLY_ON, can be checked by host driver to turn on
vbus while start host.

Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-18 16:19:12 +01:00
Peter Chen
1f874edcb7 usb: chipidea: add runtime power management support
Add runtime power management support.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-18 16:19:08 +01:00
Stephen Boyd
46f5cace1c usb: phy: msm: Remove dead code
This code is no longer used now that mach-msm has been removed.
Delete it.

Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Cc: David Brown <davidb@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-13 13:56:48 -05:00
Yoshihiro Shimoda
ab330cf388 usb: renesas_usbhs: add support for USB-DMAC
Some Renesas SoCs have the USB-DMAC. It is able to terminate transfers
when a short packet is received, even if less bytes than the transfer
counter size have been received. Also, it is able to send a short
packet even if the packet size is not multiples of 8bytes.

Since the previous code has used the interruption of USBHS controller
when receiving packets even if this driver has used a dmac, a lot of
interruptions has happened. This patch will reduce such interruptions.

This patch allows to use the USB-DMAC on R-Car H2 and M2.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-13 10:41:19 -05:00
Masanari Iida
06ed0de518 usb: gadget: Fix typo fond in Documentation/Docbook/gadget.xml
This patch fix some spelling typo found in gadget.xml.
It is because this file is generated from comments in sources,
I had to fix comments in the source, instead of xml file itself.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-11 10:19:35 -05:00
Andrzej Pietrasiewicz
f563d23090 usb: gadget: composite: add req_match method to usb_function
Non-standard requests can encode the actual interface number in a
non-standard way. For example composite_setup() assumes
that it is w_index && 0xFF, but the printer function encodes the interface
number in a context-dependet way (either w_index or w_index >> 8).
This can lead to such requests being directed to wrong functions.

This patch adds req_match() method to usb_function. Its purpose is to
verify that a given request can be handled by a given function.
If any function within a configuration provides the method and it returns
true, then it is assumed that the right function is found.

If a function uses req_match(), it should try as hard as possible to
determine if the request is meant for it.

If no functions in a configuration provide req_match or none of them
returns true, then fall back to the usual approach.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:39 -05:00
Johan Hovold
bc4b1f486f Revert "USB: serial: make bulk_out_size a lower limit"
This reverts commit 5083fd7bdf.

A bulk-out size smaller than the end-point size is indeed valid. The
offending commit broke the usb-debug driver for EHCI debug devices,
which use 8-byte buffers.

Fixes: 5083fd7bdf ("USB: serial: make bulk_out_size a lower limit")
Reported-by: "Li, Elvin" <elvin.li@intel.com>
Cc: stable <stable@vger.kernel.org>	# v3.15
Signed-off-by: Johan Hovold <johan@kernel.org>
2015-02-26 17:02:15 +01:00
Greg Kroah-Hartman
4d4bac4499 usb: patches for v3.20 merge window
Here's the big pull request for Gadgets and PHYs. It's
 a total of 217 non-merge commits with pretty much everything
 being touched.
 
 The most important bits are a ton of new documentation for
 almost all usb gadget functions, a new isp1760 UDC driver,
 several improvements to the old net2280 UDC driver, and
 some minor tracepoint improvements to dwc3.
 
 Other than that, a big list of minor cleanups, smaller bugfixes
 and new features all over the place.
 
 Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v3.20 merge window

Here's the big pull request for Gadgets and PHYs. It's
a total of 217 non-merge commits with pretty much everything
being touched.

The most important bits are a ton of new documentation for
almost all usb gadget functions, a new isp1760 UDC driver,
several improvements to the old net2280 UDC driver, and
some minor tracepoint improvements to dwc3.

Other than that, a big list of minor cleanups, smaller bugfixes
and new features all over the place.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-02-04 11:03:20 -08:00
Alan Stern
074f9dd55f USB: add flag for HCDs that can't receive wakeup requests (isp1760-hcd)
Currently the USB stack assumes that all host controller drivers are
capable of receiving wakeup requests from downstream devices.
However, this isn't true for the isp1760-hcd driver, which means that
it isn't safe to do a runtime suspend of any device attached to a
root-hub port if the device requires wakeup.

This patch adds a "cant_recv_wakeups" flag to the usb_hcd structure
and sets the flag in isp1760-hcd.  The core is modified to prevent a
direct child of the root hub from being put into runtime suspend with
wakeup enabled if the flag is set.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Nicolas Pitre <nico@linaro.org>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
2015-01-31 09:05:06 -08:00
Peter Chen
80b2502cea usb: gadget: introduce is_selfpowered for usb_gadget
Whether the gadget is selfpowerwed or not can be determined by composite
core, so we can use a common entry to indicate if the self-powered
is supported by gadget, and the related private variable at individual
udc driver can be deleted.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-01-29 10:32:21 -06:00
Andreas Herrmann
c99e76c55f USB: host: Introduce flag to enable use of 64-bit dma_mask for ehci-platform
ehci-octeon driver used a 64-bit dma_mask. With removal of ehci-octeon
and usage of ehci-platform ehci dma_mask is now limited to 32 bits
(coerced in ehci_platform_probe).

Provide a flag in ehci platform data to allow use of 64 bits for
dma_mask.

Cc: David Daney <david.daney@cavium.com>
Cc: Alex Smith <alex.smith@imgtec.com>
Signed-off-by: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-25 20:48:28 +08:00
Robert Jarzmik
7acc9973e3 usb: phy: generic: add vbus support
Add support for vbus detection and power supply. This code is more or
less stolen from phy-gpio-vbus-usb.c, and aims at providing a detection
mechanism for VBus (ie. usb cable plug) based on a GPIO line, and a
power supply activation which draws current from the VBus.

[ balbi@ti.com : fix build break ]

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-01-12 12:13:29 -06:00
Peter Chen
0767320477 usb: phy: change some comments
- Delete the OTG stuffs
- .set_suspend is for controller, not for A-device or B-device.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-01-12 12:13:28 -06:00
Wu Liang feng
314b41b16a USB: ehci-platform: Support ehci reset after resume quirk
The Rockchip rk3288 EHCI controller doesn't properly detect
the case when a device is removed during suspend. Specifically,
when usb resume from suspend, the EHCI controller maintaining
the USB state (FLAG_CF is 1, Current Connect Status is 1),
but a USB device (like a USB camera on rk3288) may have been
disconnected actually.

Let's add a quirk to force ehci to go into the
usb_root_hub_lost_power() path and reset after resume.
This should generally reset the whole controller and all
ports and initialize everything cleanly again, and bring
the devices back up.

As part of this, rename the "hibernation" paramter of
ehci_resume() to force_reset since hibernation is simply
another case where we can't trust the autodetected status
and need to force a reset of devices.

Signed-off-by: Wu Liang feng <wulf@rock-chips.com>
Reviewed-by: Julius Werner <jwerner@google.com>
Reviewed-by: Doug Anderson <dianders@google.com>
Reviewed-by: Tomasz Figa <tfiga@google.com>
Reviewed-by: Pawel Osciak <posciak@google.com>
Reviewed-by: Sonny Rao <sonnyrao@google.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Doug Anderson <dianders@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-09 12:25:54 -08:00
Sebastian Andrzej Siewior
5efd2ea8c9 usb: core: buffer: smallest buffer should start at ARCH_DMA_MINALIGN
the following error pops up during "testusb -a -t 10"
| musb-hdrc musb-hdrc.1.auto: dma_pool_free buffer-128,	f134e000/be842000 (bad dma)
hcd_buffer_create() creates a few buffers, the smallest has 32 bytes of
size. ARCH_KMALLOC_MINALIGN is set to 64 bytes. This combo results in
hcd_buffer_alloc() returning memory which is 32 bytes aligned and it
might by identified by buffer_offset() as another buffer. This means the
buffer which is on a 32 byte boundary will not get freed, instead it
tries to free another buffer with the error message.

This patch fixes the issue by creating the smallest DMA buffer with the
size of ARCH_KMALLOC_MINALIGN (or 32 in case ARCH_KMALLOC_MINALIGN is
smaller). This might be 32, 64 or even 128 bytes. The next three pools
will have the size 128, 512 and 2048.
In case the smallest pool is 128 bytes then we have only three pools
instead of four (and zero the first entry in the array).
The last pool size is always 2048 bytes which is the assumed PAGE_SIZE /
2 of 4096. I doubt it makes sense to continue using PAGE_SIZE / 2 where
we would end up with 8KiB buffer in case we have 16KiB pages.
Instead I think it makes sense to have a common size(s) and extend them
if there is need to.
There is a BUILD_BUG_ON() now in case someone has a minalign of more than
128 bytes.

Cc: stable@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-09 10:21:31 -08:00
Linus Torvalds
e7cf773d43 USB patches for 3.19-rc1
Here's the big set of USB and PHY patches for 3.19-rc1.
 
 The normal churn in the USB gadget area is in here, as well as xhci and
 other individual USB driver updates.  The PHY tree is also in here, as
 there were dependancies on the USB tree.
 
 All of these have been in linux-next.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here's the big set of USB and PHY patches for 3.19-rc1.

  The normal churn in the USB gadget area is in here, as well as xhci
  and other individual USB driver updates.  The PHY tree is also in
  here, as there were dependancies on the USB tree.

  All of these have been in linux-next"

* tag 'usb-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (351 commits)
  arm: omap3: twl: remove usb phy init data
  usbip: fix error handling in stub_probe()
  usb: gadget: udc: missing curly braces
  USB: mos7720: delete some unneeded code
  wusb: replace memset by memzero_explicit
  usbip: remove unneeded structure
  usb: xhci: fix comment for PORT_DEV_REMOVE
  xhci: don't use the same variable for stopped and halted rings current TD
  xhci: clear extra bits from slot context when setting max exit latency
  xhci: cleanup finish_td function
  USB: adutux: NULL dereferences on disconnect
  usb: chipidea: fix platform_no_drv_owner.cocci warnings
  usb: chipidea: Fixed a few typos in comments
  Documentation: bindings: add doc for the USB2 ChipIdea USB driver
  usb: chipidea: add a usb2 driver for ci13xxx
  usb: chipidea: fix phy handling
  usb: chipidea: remove duplicate dev_set_drvdata for host_start
  usb: chipidea: parameter 'mode' isn't needed for hw_device_reset
  usb: chipidea: add controller reset API
  usb: chipidea: remove flag CI_HDRC_REQUIRE_TRANSCEIVER
  ...
2014-12-14 14:57:16 -08:00
Rafael J. Wysocki
ceb6c9c862 USB / PM: Drop CONFIG_PM_RUNTIME from the USB core
After commit b2b49ccbdd (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so quite a few
depend on CONFIG_PM (or even dropped in some cases).

Replace CONFIG_PM_RUNTIME with CONFIG_PM in the USB core code
and documentation.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-12-04 00:51:54 +01:00
Peter Chen
947c88592f usb: chipidea: remove flag CI_HDRC_REQUIRE_TRANSCEIVER
Now, USB PHY is mandatory for chipidea core, the flag
CI_HDRC_REQUIRE_TRANSCEIVER is useless.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-26 09:28:12 -08:00
Greg Kroah-Hartman
2d4d9f35ba usb: patches for v3.19 merge window
This time, a very pull request with 216 non-merge
 commits. Most of the commits contained here are
 sparse or coccinelle fixes ranging from missing
 'static' to returning 0 in case of errors.
 
 More importantly, we have the removal the now
 unnecessary 'driver' argument to ->udc_stop().
 
 DWC2 learned about Dual-Role builds. Users of
 this IP can now have a single driver built for
 host and device roles.
 
 DWC3 got support for two new HW platforms: Exynos7
 and AMD.
 
 The Broadcom USB 3.0 Device Controller IP is now
 supported and so is PLX USB338x, which means DWC3
 has lost is badge as the only USB 3.0 peripheral
 IP supported on Linux.
 
 Thanks for Tony Lindgren's work, we can now have
 a distro-like kernel where all MUSB glue layers
 can be built into the same kernel (statically
 or dynamically linked) and it'll work in PIO (DMA
 will come probably on v3.20).
 
 Other than these, the usual set of cleanups and
 non-critical fixes.
 
 Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v3.19 merge window

This time, a very pull request with 216 non-merge
commits. Most of the commits contained here are
sparse or coccinelle fixes ranging from missing
'static' to returning 0 in case of errors.

More importantly, we have the removal the now
unnecessary 'driver' argument to ->udc_stop().

DWC2 learned about Dual-Role builds. Users of
this IP can now have a single driver built for
host and device roles.

DWC3 got support for two new HW platforms: Exynos7
and AMD.

The Broadcom USB 3.0 Device Controller IP is now
supported and so is PLX USB338x, which means DWC3
has lost is badge as the only USB 3.0 peripheral
IP supported on Linux.

Thanks for Tony Lindgren's work, we can now have
a distro-like kernel where all MUSB glue layers
can be built into the same kernel (statically
or dynamically linked) and it'll work in PIO (DMA
will come probably on v3.20).

Other than these, the usual set of cleanups and
non-critical fixes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-25 09:31:14 -08:00
Kiran Raparthy
df9f7b311d usb: phy: introduce usb_phy_set_event interface
PHY drivers require a generic interface to handle per-PHY events.

usb_phy_set_event interface sets event to phy event.
PHY drivers call this interface for each phy event.

Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Cc: Android Kernel Team <kernel-team@android.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Arve Hj�nnev�g <arve@android.com>
Cc: Benoit Goby <benoit@android.com>
[Original patch in Android from Todd]
Cc: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Kiran Raparthy <kiran.kumar@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-21 09:05:45 -06:00
Yoshihiro Shimoda
d3cf6a4b01 usb: renesas_usbhs: expand USB-DMAC channels for R-Car Gen2
This patch expands USB-DMAC channels for R-Car Gen2 SoCs. The SoCs
have 4 channels. If d{2,3}_{t,x}x_id are not set, this driver never
uses the expanded USB-DMAC channels.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-12 09:11:31 -06:00
Chris Rorvick
35a27eab6f usb: Remove __init from early_dbgp_init() prototype
Specifying these attributes in both the prototype and the function
definition is unnecessary and could cause confusion or bugs if they are
inconsistent.  As such, __init should only be specified at the function
definition.

Keith Owens suggested this as a janitorial task on LKML several years
ago:

  https://lkml.org/lkml/2006/1/14/305

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-07 09:02:38 -08:00
Chris Rorvick
b9ec1c9da6 usb: Create separate header for ehci-dbgp
The FUSBH200 and FOTG210 controllers implement sufficiently EHCI-
compatible debug ports to leverage ehci-dbgp from their respective
drivers.  Rather than including <linux/usb/ehci_def.h> header, though,
they replicate the necessary declarations in their own headers.  Move
the ehci-dbgp stuff into its own header as a first step towards removing
this redundancy.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-07 09:02:37 -08:00
Michael Grzeschik
11a7e59405 usb: ehci: add ehci_port_power interface
The current EHCI implementation is prepared to toggle the
PORT_POWER bit to enable or disable a USB-Port. In some
cases this port power can not be just toggled by the PORT_POWER
bit, and the gpio-regulator is needed to be toggled too.

This patch defines a port power control interface ehci_port_power for
ehci core use, it toggles PORT_POWER bit as well as calls platform
defined .port_power if it is defined.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03 15:34:00 -08:00
Antoine Tenart
1e5e2d3d05 usb: chipidea: add support to the generic PHY framework
This patch adds support of the PHY framework for ChipIdea drivers.
Changes are done in both the ChipIdea common code and in the drivers
accessing the PHY. This is done by adding a new PHY member in
ChipIdea's structures and by taking care of it in the code.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-03 10:03:30 -06:00
Antoine Tenart
ef44cb4226 usb: allow to supply the PHY in the drivers when using HCD
This patch modify the generic code handling PHYs to allow them to be
supplied from the drivers. This adds checks to ensure no PHY was already
there when looking for one in the generic code. This also makes sure we
do not modify its state in the generic HCD functions, it was provided by
the driver.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-03 10:02:50 -06:00
Antoine Tenart
48bcc18076 usb: add support to the generic PHY framework in OTG
This patch adds support of the PHY framework in OTG and keeps the USB
PHY compatibility. Here the only modification is to add PHY member in
the OTG structure, along with the USB PHY one.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-03 10:01:25 -06:00
Antoine Tenart
19c1eac268 usb: rename phy to usb_phy in OTG
This patch prepares the introduction of the generic PHY support in the
USB OTG common functions. The USB PHY member of the OTG structure is
renamed to 'usb_phy' and modifications are done in all drivers accessing
it. Renaming this pointer will allow to keep the compatibility for USB
PHY drivers.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-03 10:01:25 -06:00
Antoine Tenart
e47d92545c usb: move the OTG state from the USB PHY to the OTG structure
Before using the PHY framework instead of the USB PHY one, we need to
move the OTG state into another place, since it won't be available when
USB PHY isn't used. This patch moves the OTG state into the OTG
structure, and makes all the needed modifications in the drivers
using the OTG state.

[ balbi@ti.com : fix build regressions with phy-tahvo.c, musb_dsps.c,
		phy-isp1301-omap, and chipidea's debug.c ]

Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-03 10:01:25 -06:00
Felipe Balbi
02e8c96627 usb: gadget: udc: core: prepend udc_attach_driver with usb_
No functional changes, just adding a prefix
which should have been there from the start.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-03 10:01:16 -06:00
Felipe Balbi
22835b807e usb: gadget: remove unnecessary 'driver' argument
now that no UDC driver relies on the extra
'driver' argument to ->udc_stop(), we can
safely remove it.

This commit is based on previous work by
Robert Baldyga <r.baldyga@samsung.com> which
can be found at [1]; however that patch turned
out to have a high probability of regressing
many UDC drivers because of a blind search & replace
s/driver/$udc->driver/ which caused the 'driver'
argument to stop_activity() to be a valid non-NULL
pointer when it should be NULL, thus causing UDCs
to mistakenly call gadget driver's ->disconnect()
callback.

[1] http://markmail.org/message/x5zneg4xea4zntab

Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-03 10:01:16 -06:00
Andrzej Pietrasiewicz
3a57187085 usb: gadget: configfs: add suspend/resume
USB gadgets composed with configfs lack suspend and resume
methods. This patch uses composite_suspend()/composite_resume()
the same way e.g. composite_setup() or composite_disconnect()
are used in a configfs-based gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-03 10:00:59 -06:00
Felipe Balbi
6c93b53423 usb: gadget: composite: introduce setup and os_desc pending flags
These flags we be set to true whenever their
matching request is queued. They will be cleared
to false when that request completes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-03 10:00:54 -06:00
Olivier Blin
1efed2d06c usbnet: add a callback for set_rx_mode
To delegate promiscuous mode and multicast filtering to the subdriver.

Signed-off-by: Olivier Blin <olivier.blin@softathome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 17:26:19 -04:00
Sergei Shtylyov
0043325495 usb: hcd: add generic PHY support
Add the generic PHY support, analogous to the USB PHY support. Intended it to be
used with the PCI EHCI/OHCI drivers and the xHCI platform driver.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29 11:54:02 -04:00
Antoine Tenart
3d46e73dfd usb: rename phy to usb_phy in HCD
The USB PHY member of the HCD structure is renamed to 'usb_phy' and
modifications are done in all drivers accessing it.
This is in preparation to adding the generic PHY support.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
[Sergei: added missing 'drivers/usb/misc/lvstest.c' file, resolved rejects,
updated changelog.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29 11:52:59 -04:00
Michal Sojka
3fc2aa5522 usb: gadget: Introduce usb_gadget_giveback_request()
All USB peripheral controller drivers call completion routines directly.
This patch adds usb_gadget_giveback_request() which will be used instead
of direct invocation in the next patch. The goal here is to have a place
where common functionality can be added.

Signed-off-by: Michal Sojka <sojka@merica.cz>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-25 16:58:17 +02:00
Greg Kroah-Hartman
5cb307c4c2 USB: quirks.h: use BIT()
Use the BIT macro instead of "open coding" bit fields.  This makes it
easier to actually see that the bits are not conflicting/overlapping.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 22:23:55 -07:00
Lu Baolu
ddbe1fca0b USB: Add device quirk for ASUS T100 Base Station keyboard
This full-speed USB device generates spurious remote wakeup event
as soon as USB_DEVICE_REMOTE_WAKEUP feature is set. As the result,
Linux can't enter system suspend and S0ix power saving modes once
this keyboard is used.

This patch tries to introduce USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk.
With this quirk set, wakeup capability will be ignored during
device configure.

This patch could be back-ported to kernels as old as 2.6.39.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 22:20:59 -07:00
Peter Chen
f6a9ff0783 usb: chipidea: add TPL support for targeted hosts
For OTG and Embedded hosts, they may need TPL (Targeted Peripheral List)
for usb certification and other vender specific requirements, the
platform can tell chipidea core driver if it supports tpl through DT
or platform data.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 21:28:41 -07:00
Peter Chen
05f8b35a62 usb: common: add API to get if the platform supports TPL
The TPL (Targeted Peripheral List) is used for targeted hosts
(non-PC hosts), and it can be used at USB OTG & EH certification
and some specific products which need white list.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 21:28:41 -07:00
Peter Chen
f2693b430b usb: hcd: add TPL support flag
The targeted hosts (non-PC hosts) need to have TPL (Targeted Peripheral List)
for USB OTG & EH certification and other vendor specific requirements.

The platform who needs TPL feature should set this flag at usb host
controller driver.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 21:28:41 -07:00