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usb: dwc2: gadget: Add remote_wakeup_allowed flag

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It will be set once corresponding set_feature command comes.

True if device is allowed to wake-up host by remote-wakeup
signalling.

This is preparation for remote wake-up support implementation,
it will not be implemented until gadget stack provide interface
for bringing remote wake-up signalling.

Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Vardan Mikayelyan 2018-02-16 14:08:53 +04:00 committed by Felipe Balbi
parent 20fe440982
commit fa389a6d77
2 changed files with 8 additions and 0 deletions
drivers/usb/dwc2
core.hgadget.c

3
drivers/usb/dwc2/core.h
View File

@ -928,6 +928,8 @@ struct dwc2_hregs_backup {
* @ctrl_req: Request for EP0 control packets.
* @ep0_state: EP0 control transfers state
* @test_mode: USB test mode requested by the host
* @remote_wakeup_allowed: True if device is allowed to wake-up host by
* remote-wakeup signalling
* @setup_desc_dma: EP0 setup stage desc chain DMA address
* @setup_desc: EP0 setup stage desc chain pointer
* @ctrl_in_desc_dma: EP0 IN data phase desc chain DMA address
@ -1082,6 +1084,7 @@ struct dwc2_hsotg {
struct usb_gadget gadget;
unsigned int enabled:1;
unsigned int connected:1;
unsigned int remote_wakeup_allowed:1;
struct dwc2_hsotg_ep *eps_in[MAX_EPS_CHANNELS];
struct dwc2_hsotg_ep *eps_out[MAX_EPS_CHANNELS];
#endif /* CONFIG_USB_DWC2_PERIPHERAL || CONFIG_USB_DWC2_DUAL_ROLE */

5
drivers/usb/dwc2/gadget.c
View File

@ -1640,6 +1640,10 @@ static int dwc2_hsotg_process_req_feature(struct dwc2_hsotg *hsotg,
switch (recip) {
case USB_RECIP_DEVICE:
switch (wValue) {
case USB_DEVICE_REMOTE_WAKEUP:
hsotg->remote_wakeup_allowed = 1;
break;
case USB_DEVICE_TEST_MODE:
if ((wIndex & 0xff) != 0)
return -EINVAL;
@ -4624,6 +4628,7 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg)
hsotg->gadget.max_speed = USB_SPEED_HIGH;
hsotg->gadget.ops = &dwc2_hsotg_gadget_ops;
hsotg->gadget.name = dev_name(dev);
hsotg->remote_wakeup_allowed = 0;
if (hsotg->params.lpm)
hsotg->gadget.lpm_capable = true;