u-boot.git/drivers/usb/host/usb-uclass.c, branch v2015.10-rc2

usb: USB storage-specific part ifdef in uclass

2015-08-05T15:20:34Z

usb_stor_reset is only defined when USB storage support is enabled, thus the function is not declared when such support is missing. Signed-off-by: Paul Kocialkowski

dm: usb: Do not assume that first child is always a hub

2015-07-21T23:39:36Z

On some single port (otg) controllers there is no emulated root hub, so the first child (if any) may be one of: UCLASS_MASS_STORAGE, UCLASS_USB_DEV_GENERIC or UCLASS_USB_HUB. All three of these (and in the future others) are suitable for our purposes, remove the check for the device being a hub, and add a check to deal with the fact that there may be no child-dev. Signed-off-by: Hans de Goede Acked-by: Simon Glass

dm: usb: Allow usb host drivers to implement usb_reset_root_port

2015-07-21T23:39:36Z

Allow usb uclass host drivers to implement usb_reset_root_port, this is used by single port usb hosts which do not emulate a hub, such as otg controllers. Signed-off-by: Hans de Goede Acked-by: Simon Glass

dm: usb: Rename usb_find_child to usb_find_emul_child

2015-07-21T23:39:36Z

Now that we unbind usb devices from usb_stop() usb_find_child() is only necessary to deal with emulated usb devices. Rename it to make this clear and add a #ifdef to make it a nop in other cases. Note the #ifdef turns usb_find_emul_child() into a nop, rather then not building it and adding another #ifdef to the caller, this is done this way because adding a #ifdef to the caller is somewhat hairy. Signed-off-by: Hans de Goede Acked-by: Simon Glass

dm: usb: Use device_unbind_children to clean up usb devs on stop

2015-07-21T23:39:36Z

On an usb stop instead of leaving orphan usb devices behind simply remove them. The result of this commit is best seen in the output of "dm tree" after plugging out an usb hub with 2 devices plugges in and plugging in a keyb. instead, before this commit the output would be: usb [ + ] `-- sunxi-musb usb_hub [ ] |-- usb_hub usb_mass_st [ ] | |-- usb_mass_storage usb_dev_gen [ ] | `-- generic_bus_0_dev_3 usb_dev_gen [ + ] `-- generic_bus_0_dev_1 Notice the non active usb_hub child and its 2 non active children. The first child being non-active as in this example also causes usb_get_dev_index to return NULL when probing the first child, which results in the usb kbd code not binding to the keyboard. With this commit in place the output after swapping and "usb reset" is: usb [ + ] `-- sunxi-musb usb_dev_gen [ + ] `-- generic_bus_0_dev_1 As expected, and usb_get_dev_index works properly and the keyboard works. Signed-off-by: Hans de Goede Acked-by: Simon Glass

usb: Add an usb_device parameter to usb_reset_root_port

2015-07-21T23:39:35Z

Add an usb_device parameter to usb_reset_root_port so that it knows which root-port it is resetting. This is necessary for proper device-model support for usb_reset_root_port. Also remove a duplicate declaration of usb_reset_root_port() from usb.h . Signed-off-by: Hans de Goede Acked-by: Simon Glass

usb: usb_setup_device: Drop unneeded portnr function argument

2015-07-21T23:39:35Z

Drop the unneeded portnr function argument, the portnr is part of the usb_device struct which is passed via the dev argument. Signed-off-by: Hans de Goede Acked-by: Simon Glass

usb: Drop device-model specific copy of usb_legacy_port_reset

2015-07-21T23:39:34Z

The device-model usb_legacy_port_reset function calls the device-model usb_port_reset function which is a 1 on 1 copy of the non dm usb_legacy_port_reset and this is the only use of usb_port_reset in all of u-boot. Drop both, and alway use the usb_legacy_port_reset() version in common/usb.c . Also while at it make it static as it is only used in common/usb.c . Signed-off-by: Hans de Goede Acked-by: Simon Glass

dm: usb: Implement usb_detect_change() for driver model

2015-06-11T01:26:54Z

Support this function with driver model also (CONFIG_DM_USB). Signed-off-by: Simon Glass

dm: usb: Do not scan companion buses if no devices where handed over

2015-05-15T00:49:31Z

USB scanning is slow, and there is no need to scan the companion buses if no usb devices where handed over to the companinon controllers by any of the main controllers. This saves e.g. 2 seconds when booting a A10 OLinuxIno Lime with no USB-1 devices plugged into the root usb ports. Signed-off-by: Hans de Goede Acked-by: Simon Glass