u-boot.git/cmd/usb.c, branch v2017.09

dm: usb: Adjust the 'usb' command to use blk_common_cmd()

2017-08-17T07:44:16+00:00

Instead of having separate code in the 'usb' command, adjust it to use
the common function.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng

usb: cmd: Print actual packet size for super speed devices

2017-07-28T21:34:25+00:00

USB 3.0 defines bMaxPacketSize0 field in the device descriptor as
the exponent of 2, so let's print the calculated actual size.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass 
Reviewed-by: Stefan Roese 
Tested-by: Stefan Roese

usb: storage: Show number of storage devices detected for DM_USB

2017-01-17T09:26:21+00:00

By enabling DM_USB information about number of storage devices
was lost.
Get this information back simply by printing number of devices detected
via BLK uclass.

For example:
scanning bus 0 for devices... 7 USB Device(s) found
       scanning usb for storage devices... 3 Storage Device(s) found
       scanning usb for ethernet devices... 0 Ethernet Device(s) found

Signed-off-by: Michal Simek

usb: dm: Make "usb info" use usb_for_each_root_dev()

2016-07-05T12:14:11+00:00

The old dm "usb info" implementation has several issues:

1) NULL pointer deref when a bus has no children
2) Not showing usb devices on busses without an emulated root-hub (otg host)
3) Attempting to show devices on inactive busses
4) "usb info" Would cause some hosts to get re-probed something which only
   "usb reset" should do

TL;DR: proper iterating over usb bus root devs is hard, use the helper
for it.

Reported-by: Bernhard Nortmann 
Signed-off-by: Hans de Goede

usb: dm: Add a usb_for_each_root_dev() helper function

2016-07-05T12:14:11+00:00

Iterating over usb-root devs and doing something for all of them is
a bit tricky with dm, factor out the proven usb_show_tree() for this
into a helper function.

Signed-off-by: Hans de Goede

cmd: usb: check if_type before using this device

2016-06-17T22:48:31+00:00

For legacy usb storage driver, USB_MAX_STOR_DEV is defined as 7.
If we only have one usb disk on board, `usb dev 0` is ok.
But if `usb dev 1`, still ok, then `usb read xxx` will trigger
system fault and reboot.

So check if_type before using this device.

Signed-off-by: Peng Fan 
Cc: Simon Glass 
Cc: Hans de Goede 
Cc: Bin Meng 
Cc: Marek Vasut 
Cc: Stefan Roese 
Cc: Marcel Ziswiler 
Cc: Peng Fan 
Cc: Stephen Warren

dm: usb: Drop the get_dev() function

2016-05-17T15:54:43+00:00

This function is implemented by the legacy block functions now. Drop it.

Signed-off-by: Simon Glass

dm: usb: Do not reprobe usb hosts on "usb tree" command

2016-04-10T15:18:43+00:00

Some usb hosts may have failed to probe on "usb start", i.e. an otg
host without an otg-host cable plugged in.

"usb tree" would cause the probe method of these hosts to get called
again, something which should only happen on "usb reset".

This commit fixes this.

Signed-off-by: Hans de Goede

usb: kbd: Do not deregister usbkbd twice when using dm

2016-04-10T15:18:42+00:00

The dm usb_kbd_remove function() will deregister the usb keyboard for
us on a "usb reset" / "usb stop" so there is no need to manually call
usb_kbd_deregister() in the dm case.

This commit removes usb_kbd_deregister() in the dm case fixing the
following "usb reset" errors:

usb_kbd_remove: warning, ret=-6
device_remove: Device 'usb_kbd' failed to remove, but children are gone

Signed-off-by: Hans de Goede

dm: block: Adjust device calls to go through helpers function

2016-03-14T21:34:50+00:00

To ease conversion to driver model, add helper functions which deal with
calling each block device method. With driver model we can reimplement these
functions with the same arguments.

Use inline functions to avoid increasing code size on some boards.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng 
Tested-by: Stephen Warren