usb: gadget: fastboot: pass message type as enum ...

We used to pass the message type ("INFO", "FAIL", "OKAY") as strings
to fastboot_tx_print(). Change this to a enum type. This allows
fastboot_tx_print() to react on the message type in the next step.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usbgadget: autostart: add DFU support ...

Use global variable dfu_function to autostart DFU. As similar code
is used to start multifunction gadget using command, move common
code to common/usbgadget.c and consolidate it.
It turned out that '-s' option of usbgadget command does nothing,
so remove its help text and make it function as '-a'.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: gadget: fsl_udc: pass controller instance to unregister ...

ci_udc_unregister() used to unregister "the controller". Since we
may register multiple chipidea devices we called ci_udc_unregister()
for each of them. This led to messages like:

ERROR: imx-usb 53f80000.usb: gadget not registered.

Fix this by returning the registered controller. This allows us to call
ci_udc_unregister() only when we actually registered one before.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: host: ehci: do not use dev->priv ...

An ehci can be registered with ehci_register which is passed a struct
device_d *. In that case the priv pointer may already be used by the
caller, so we must not use it in the ehci code. At least for the Atmel
ehci driver this fixes a bug, here dev->priv is set two times to
different values.
Since we need dev->priv in the ehci code to get the controller in
ehci_detect() we can no longer implement that without the help of the
caller, hence we eport ehci_detect() and epect it to be called by
the code which registers a ehci host.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: host: ehci: add ehci_unregister() ...

ehci_register() allocates data and registers a ehci host. Add
ehci_unregister() to properly halt the controller and to free the memory
again.. To do so, change ehci_register() to return the ehci host rather
than an error code.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: Add usb_unregister_host() ...

We have usb_register_host() which puts a new host on the list
of hosts we should also have the opposite which removes the
host from the list again.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: imx: implement support for limiting host to full speed ...

This is needed when host is known to not work properly in high speed
mode.

In linux, chipidea driver supports 'maximum-speed' device tree property.
When that is set to "full-speed", driver sets PFSC bit in PORTSC
register, which disallows use of high speed mode.

This patch implements same support for barebox.

Important technical detail is that PFSC bit is cleared by port reset,
thus setting it has to be done in ehci->init() callback which is called
after ehci_reset().

Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: gadget: fastboot: Add external command execution support ...

Custom projects may need vendor specific expansions to the fastboot
command execution. Allow these to be implemented without messing in
the fastboot code directly.
We have a hook for all commands and also one for the "flash" command.
Each hook can decide if the generic command parser is executed
afterwards (return value FASTBOOT_CMD_FALLTHROUGH) or if the generic
parser shall be skipped (return value 0 or negative error code).

This allows board code to implement vendor specific "oem" commands
or to handle the downloaded image in a special way (i.e. do signature
checks on them)

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usbgadget: fastboot: Allow to automatically export the bbu handlers ...

We have a list of registered handlers which take a barebox update. Do
the next step and allow to automatically export them via fastboot so
that barebox can be updated via fastboot without manually exporting
the partition. Since this may not be desirable in all cases this
behaviour is configurable.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: gadget: properly release f_multi_opts ...

The usbgadget commands uses statically allocated f_multi_opts and passes
this to usb_multi_register(). These f_multi_opts are of course no
longer valid when we leave the usbgadget command. Luckily we do not use
the data after we left the usbgadget command, so this never has been a
problem. However, f_multi_opts has some allocated members which we can
not free anymore on gadget unregistration because we no longer have the
pointer to them.

Fix this by adding a release function to struct f_multi_opts. This way
we can allocate all memory dynamically and properly free it when not
used anymore.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: imx: Make usb-misc multi instance safe ...

i.MX7 has two usbmisc devices, so we cannot use global instance
variables anymore. Create a driver private data struct for it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: ehci: forward phy given in registration data to host ...

Allow to pass a phy in the registration data and forward it to
the usb_host structure.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: Add usb phy to usb host ...

Add a struct usb_phy * member to struct usb_host. Also, call
usb_phy_notify_connect() / usb_phy_notify_disconnect() when there
are connection changes on the root hub.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Introduce include/linux/spinlock.h ...

Move spinlock related definitions to its original place.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: core: return -EAGAIN on usb_* functions reentrance ...

Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/usb'

chipidea-imx: allow phymode configuration in pdata ...

it's currently only handled through DT and for i.MX25 OTG port (at least),
we need to configure portsc to get host mode working but it actually fails
as ci->phymode is 0 which is USBPHY_INTERFACE_MODE_UNKNOWN

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: chipidea: Add udc unregister for device removal ...

The host may assume that the usb device is still up and running after
booting if we do not deregister the udc here. I observed issues when the
linux kernel was using a usb gadget directly where the complete USB Hub
got disconnected through this.

This patch adds a proper USB disconnect for gadget devices.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: increase USB_CNTL_TIMEOUT to match linux ...

USB requests should be processed within a timeframe of 5s.
The linux kernel also uses this timeout value for the control packets.

For the musb the increase in timeout helps successfully probing USB devices
(at least on one test hardware), but on the other hand doesn't slow down the
system, if there are no devices, i.e. the timeout never hits. That means,
that the USB core correctly aborts instead of timing out.
Why and how the 100ms was chosen in the first place, can not be deduced from
the git history, just that it seems to work fine for most boards.

Change USB_CNTL_TIMEOUT to 5000ms and replace all occurences of
	`USB_CNTL_TIMEOUT * x`
with just
	`USB_CNTL_TIMEOUT`,
as the timeout is now large enough without it.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: gadget: include common.h in header ...

It is needed for container_of() and this header falls
over if we change the include order.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: abolish wait_ms() function ...

This function is only used in drivers/usb/*.
It is equivalent to mdelay().

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: Add MUSB driver from Linux ...

This adds the necessary files from the MUSB driver directly from Linux
3.17-rc5. No changes to the original files have been made so far.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: gadget: put poller into core ...

Instead of letting each driver implement usb_gadget_poll directly
implement this function in the core which then calls into the
drivers.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: add usb phy header file ...

Mostly taken from the Linux Kernel to ease porting phy
handling code.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/usb-host' ...

Conflicts:
	drivers/usb/core/Makefile

USB: host: add xHCI HCD, Hub, and platform driver ...

This adds support for xHCI USB 3.0 host controllers found on various
SoCs and PCI devices. Currently, the driver only supports the virtual
USB 2.0 ports of the host controller, so if you plan to use USB 3.0
devices, put a USB 2.0 cable in between.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: remove redundant defines from usb_defs.h ...

We imported a bunch of defines with ch9.h and ch11.h that are now
duplicated in usb_defs.h. Get rid of each duplicate in usb_defs.h
and prefer the ones from ch9.h and ch11.h.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: Use descriptors from ch11.h ...

Use the descriptors from ch11.h instead of duplicating them
in usb.h. usb_hub_descriptor now contains a union .u to differentiate
HS hub descriptor from SS hub descriptor.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: Move FooRequest defines and add class requests ...

{Device,Interface,Endpoint}Requests are currently defined in private
ehci.h but are also useful for other drivers than ehci-hcd. Move them
to usb/usb_defs.h and also add some more class requests.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: fixup usb_hub_descriptor length name ...

All other descriptors have their length field named bLength, except
imported usb_hub_descriptor from Linux uses bDescLength. Adjust the
name to match the others.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>