[PATCH v2 06/14] usb: dwc2: gadget: Add remote_wakeup_allowed flag

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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@xxxxxxxxxxxx>
Signed-off-by: John Youn <johnyoun@xxxxxxxxxxxx>
---
 drivers/usb/dwc2/core.h   | 3 +++
 drivers/usb/dwc2/gadget.c | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index d84d0ce..ace383f 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -897,6 +897,8 @@ 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
@@ -1061,6 +1063,7 @@ 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 */
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 3b082ed..fd274a8 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -1665,6 +1665,10 @@ 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;
@@ -4626,6 +4630,8 @@ 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->dr_mode == USB_DR_MODE_OTG)
 		hsotg->gadget.is_otg = 1;
 	else if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL)
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux