user/sven/linux.git/include/linux/usb/gadget.h, branch v4.0

usb: gadget: introduce is_selfpowered for usb_gadget

2015-01-29T16:32:21Z

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 Signed-off-by: Felipe Balbi

usb: gadget: udc: core: prepend udc_attach_driver with usb_

2014-11-03T16:01:16Z

No functional changes, just adding a prefix which should have been there from the start. Signed-off-by: Felipe Balbi

usb: gadget: remove unnecessary 'driver' argument

2014-11-03T16:01:16Z

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 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 Signed-off-by: Felipe Balbi

usb: gadget: Introduce usb_gadget_giveback_request()

2014-09-25T14:58:17Z

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 Acked-by: Felipe Balbi Tested-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman

usb: gadget: udc-core: add utility for bus reset

2014-09-12T14:12:51Z

The udc driver can notify the udc core that bus reset occurs by calling this utility, the core will notify gadget driver this information and update gadget state accordingly. Signed-off-by: Peter Chen Signed-off-by: Felipe Balbi

usb: gadget: add reset API at usb_gadget_driver

2014-09-09T14:58:09Z

Adding reset API for UDC bus reset handler is useful for below two issues. Current disconnect API at usb_gadget_driver is also invoked at udc's bus reset handler, but the document says it is invoked when the host is disconnected. Besides, we may expect the gadget_driver to do different things for host sends bus reset and host disconnects gadget, eg, we may not want to flush dirty page for mass storage at bus reset, and want to do it at disconnection. Acked-by: Alan Stern Signed-off-by: Peter Chen Signed-off-by: Felipe Balbi

usb: gadget: document a usb_ep_dequeue() requirement

2014-08-21T21:13:52Z

Document the requirement that the request be dequeued and its completion routine called before usb_ep_dequeue() returns. Also fix some capitalization issues in the existing text. Signed-off-by: Paul Zimmerman Acked-by: Alan Stern Signed-off-by: Felipe Balbi

usb: gadget: add "maxpacket_limit" field to struct usb_ep

2013-12-17T19:17:41Z

This patch adds "maxpacket_limit" to struct usb_ep. This field contains maximum value of maxpacket supported by driver, and is set in driver probe. This value should be used by autoconfig() function, because value of field "maxpacket" is set to value from endpoint descriptor when endpoint becomes enabled. So when autoconfig() function will be called again for this endpoint, "maxpacket" value will contain wMaxPacketSize from descriptior instead of maximum packet size for this endpoint. For this reason this patch adds new field "maxpacket_limit" which contains value of maximum packet size (which defines maximum endpoint capabilities). This value is used in ep_matches() function used by autoconfig(). Value of "maxpacket_limit" should be set in UDC driver probe function, using usb_ep_set_maxpacket_limit() function, defined in gadget.h. This function set choosen value to both "maxpacket_limit" and "maxpacket" fields. This patch modifies UDC drivers by adding support for maxpacket_limit. Signed-off-by: Robert Baldyga Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi

usb: gadget: add quirk_ep_out_aligned_size field to struct usb_gadget

2013-12-10T04:44:05Z

Due to USB controllers may have different restrictions, usb gadget layer needs to provide a generic way to inform gadget functions to complain with non-standard requirements. This patch adds 'quirk_ep_out_aligned_size' field to struct usb_gadget to inform when controller's epout requires buffer size to be aligned to MaxPacketSize. A helper is also provided to align buffer size when necessary. Cc: Alan Stern Acked-by: Michal Nazarewicz Signed-off-by: David Cohen Signed-off-by: Felipe Balbi

usb: gadget: move bitflags to the end of usb_gadget struct

2013-12-10T04:44:03Z

This patch moves all bitflags to the end of usb_gadget struct in order to improve readability. Signed-off-by: David Cohen Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi