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>

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>

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: 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 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>

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: host: drop force rescan ...

We can now detect changes in the USB device hierarchy properly, so
the 'force' option to the usb command is no longer necessary. We just
scan the busses each time the usb command is called.

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

commands: usb: add tree view capability ...

This patch adds U-Boot 'usb tree' command functionality to barebox.

Here is an example output:

  1 ID 0000:0000
  |  u-boot EHCI Host Controller
  |
  +-2 ID 05e3:0606
    |   USB2.0 Hub
    |
    +-3 ID 10c4:ea60
    |    Silicon Labs CP2102 USB to UART Bridge Contr P-00-00669
    |
    +-4 ID 05e3:0606
    | |   USB2.0 Hub
    | |
    | +-5 ID 05e3:0608
    | | |   USB2.0 Hub
    | | |
    | | +-6 ID 0d8c:000c
    | |       C-Media USB Headphone Set
    | |
    | +-7 ID 0d8c:000c
    |       C-Media USB Headphone Set
    |
    +-8 ID 0846:1040
         NETGEAR NETGEAR FA120 Adapter

The tree view is enabled with 'usb -t'

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: Remove conflicting USB_SPEED_* definitions ...

We have USB_SPEED_* definitions as macros in usb_defs.h and as an enum
in ch9.h. The defines in usb.h correspond to hardware bits in the
ehci controller. Get rid of them and keep the hardware independent
enums.

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

USB: Use descriptors from ch9.h ...

Use the descriptors from ch9.h instead of duplicating them
in usb.h

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

USB: introduce usb_interface/usb_configuration structs ...

Currently we have two conflicting definitions of struct usb_config_descriptor
and struct usb_interface_descriptor in the tree. This is because the USB code
uses additional fields in the structs for internal housekeeping. Add
struct usb_interface and struct struct usb_configuration with the housekeeping
data and embed the corresponding hardware structs into them. This frees the
way to use the definitions from ch9.h in the next step.

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

Documentation: remove doxygen documentation ...

The doxygen documentation is long outdated. Remove it. It will
be replaced with sphinx based documentation later.

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

usb: drop unused USB_UHCI_*_ID macros ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: remove unimplemented usb_get_dev_index() declaration ...

We do not have usb_get_dev_index() function, so remove this declaration.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: make usb devices children of the corresponding host ...

To be able to find usb devices in the hardware tree.

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

usb: implement a usb_host_detect to scan individual USB hosts ...

Currently we can only (re)scan all USB hosts. Add a function to
scan individual hosts. This is useful for implementing the detect
callback in the next patch.

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

usb: move scanned status into core ...

A command should not be interested in the internal USB core state, so
move the state handling into the core.

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

usb: Add devicetree helpers ...

Add helpers to get the dr_mode and the phy_mode.

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

Remove unimplemented usb_driver_unregister declaration ...

We do not have usb_driver_unregister function, so remove this declaration.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: fix build for big-endian platform ...

The problem was introduced in

    commit 51885a7
    Author: Sascha Hauer <s.hauer@pengutronix.de>
    Date:   Thu Jun 28 09:56:23 2012 +0200

    Change byte order detection mechanism to kernel style

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Treewide: remove address of the Free Software Foundation ...

The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.

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

Merge branch 'for-next/dma-cache-align'

USB core: device descriptor using dma_alloc ...

The device descriptor needs to be dma save.

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

USB core: allocate setup_packet using dma_alloc ...

The setup packet needs to be dma save.

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

Change byte order detection mechanism to kernel style ...

The Linux Kernel defines only one of __LITTLE_ENDIAN and
__BIG_ENDIAN. Endianess can then be tested with #ifdef __xx_ENDIAN. Userspace
always defined both __LITTLE_ENDIAN and __BIG_ENDIAN and byteorder can then
be tested with #if __BYTE_ORDER == __xx_ENDIAN.

As we tend to use a lot of Kernel code in barebox we switch to use the kernel
way of determing the byte order.

As this always causes a lot of confusion add a check to include/common.h to
make sure only one of __LITTLE_ENDIAN and __BIG_ENDIAN is defined.

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

usb: set MAXINTERFACES = 16 ...

Tegra2 needs MAXINTERFACES > 8, so increase the macro's value.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

driver: switch driver_d name to const char* ...

this will allow to save 200 bytes on a9g20 and 180 bytes on ti xlaoder

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Extended USB device matching. ...

Extended the USB device matching, adding checks for interface class,
interface subclass, and interface protocol.

usb: honour timeout fields ...

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

commands: seperate usb command from usb core ...

This patch makes the USB command optional and makes usb_rescan a
global function. This way we can use USB in noninteractive
environments.

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