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usb: r8a66597-udc: add support for set_selfpowered

PATCH Applied Shimoda, Yoshihiro 2 participants 2 messages Apr 11, 2012

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Shimoda, Yoshihiro

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PATCH v2 1/1 usb: r8a66597-udc: add support for set_selfpowered

The previous code always set to USB_DEVICE_SELF_POWERED in GET_STATUS. So, this patch adds set_selfpowered().

Signed-off-by Yoshihiro Shimoda <[email protected]>

---
about v2:
- fix compile warning

 drivers/usb/gadget/r8a66597-udc.c |   15 ++++++++++++++-
 drivers/usb/gadget/r8a66597-udc.h |    1 +
 2 files changed, 15 insertions(+), 1 deletions(-)
drivers/usb/gadget/r8a66597-udc.c +14 -1
index c4401e7..873e69f 100644
@@ -1170,7 +1170,7 @@ __acquires(r8a66597->lock)
 
 	switch (ctrl->bRequestType & USB_RECIP_MASK) {
 	case USB_RECIP_DEVICE:
-		status = 1 << USB_DEVICE_SELF_POWERED;
+		status = r8a66597->device_status;
 		break;
 	case USB_RECIP_INTERFACE:
 		status = 0;

@@ -1800,11 +1800,24 @@ static int r8a66597_pullup(struct usb_gadget *gadget, int is_on)
 	return 0;
 }
 
+static int r8a66597_set_selfpowered(struct usb_gadget *gadget, int is_self)
+{
+	struct r8a66597 *r8a66597 = gadget_to_r8a66597(gadget);
+
+	if (is_self)
+		r8a66597->device_status |= 1 << USB_DEVICE_SELF_POWERED;
+	else
+		r8a66597->device_status &= ~(1 << USB_DEVICE_SELF_POWERED);
+
+	return 0;
+}
+
 static struct usb_gadget_ops r8a66597_gadget_ops = {
 	.get_frame		= r8a66597_get_frame,
 	.udc_start		= r8a66597_start,
 	.udc_stop		= r8a66597_stop,
 	.pullup			= r8a66597_pullup,
+	.set_selfpowered	= r8a66597_set_selfpowered,
 };
 
 static int __exit r8a66597_remove(struct platform_device *pdev)
drivers/usb/gadget/r8a66597-udc.h +1 -0
index 8e3de61..8b855a8 100644
@@ -111,6 +111,7 @@ struct r8a66597 {
 	u16			old_vbus;
 	u16			scount;
 	u16			old_dvsq;
+	u16			device_status;	/* for GET_STATUS */
 
 	/* pipe config */
 	unsigned char bulk;
Signature · 1 line
1.7.1