diff options
| author | Robert Baldyga <r.baldyga@samsung.com> | 2013-12-13 12:23:38 +0100 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2013-12-17 13:17:41 -0600 |
| commit | e117e742d310683b410951faeab4b13b6c3c609f (patch) | |
| tree | a1f4eecfd74b5b80adb034acf11d102490d0e6d9 /drivers/usb/gadget/fsl_udc_core.c | |
| parent | f8800d47bcdf5ae0582ac674657fd939a9105be0 (diff) | |
| download | op-kernel-dev-e117e742d310683b410951faeab4b13b6c3c609f.zip op-kernel-dev-e117e742d310683b410951faeab4b13b6c3c609f.tar.gz | |
usb: gadget: add "maxpacket_limit" field to struct usb_ep
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 <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/fsl_udc_core.c')
| -rw-r--r-- | drivers/usb/gadget/fsl_udc_core.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index b7dea4e..15960af 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -2311,7 +2311,7 @@ static int __init struct_ep_setup(struct fsl_udc *udc, unsigned char index, /* for ep0: maxP defined in desc * for other eps, maxP is set by epautoconfig() called by gadget layer */ - ep->ep.maxpacket = (unsigned short) ~0; + usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0); /* the queue lists any req for this ep */ INIT_LIST_HEAD(&ep->queue); @@ -2469,7 +2469,8 @@ static int __init fsl_udc_probe(struct platform_device *pdev) * for other eps, gadget layer called ep_enable with defined desc */ udc_controller->eps[0].ep.desc = &fsl_ep0_desc; - udc_controller->eps[0].ep.maxpacket = USB_MAX_CTRL_PAYLOAD; + usb_ep_set_maxpacket_limit(&udc_controller->eps[0].ep, + USB_MAX_CTRL_PAYLOAD); /* setup the udc->eps[] for non-control endpoints and link * to gadget.ep_list */ |
