usb: dwc2: gadget: EP 0 specific DDMA programming

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Add dwc2_gadget_set_ep0_desc_chain() function to switch between EP0 DDMA
chains depend on the stage of control transfer.

Include EP0 DDMA chain selection during ep_queue called from
dwc2_hsotg_enqueue_setup() for setup stage. Selecting and filling DDMA
chain for status phase as well - add calls of
dwc2_gadget_set_ep0_desc_chain() and
dwc2_gadget_config_nonisoc_xfer_ddma() functions.

Signed-off-by: Vahram Aharonyan <vahrama@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

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Vahram Aharonyan 2016-11-14 19:16:24 -08:00 • committed by Felipe Balbi

parent 8ad07335e8

commit e02f9aa611

1 changed files with 161 additions and 5 deletions

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166

drivers/usb/dwc2/gadget.c

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