Commit aa9c2219 authored by Neal Liu's avatar Neal Liu Committed by Greg Kroah-Hartman
Browse files

usb: aspeed-vhub: support test mode feature 



Support aspeed usb vhub set feature to test mode.

Signed-off-by: default avatarNeal Liu <neal_liu@aspeedtech.com>
Acked-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Link: https://lore.kernel.org/r/20211208100545.1441397-5-neal_liu@aspeedtech.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d693bbd4

drivers/usb/gadget/udc/aspeed-vhub/dev.c

+15 −4
Original line number Diff line number Diff line
@@ -110,17 +110,28 @@ static int ast_vhub_dev_feature(struct ast_vhub_dev *d, 
				u16 wIndex, u16 wValue,

				bool is_set)

{

	u32 val;



	DDBG(d, "%s_FEATURE(dev val=%02x)\n",

	     is_set ? "SET" : "CLEAR", wValue);



	if (wValue != USB_DEVICE_REMOTE_WAKEUP)

		return std_req_driver;



	if (wValue == USB_DEVICE_REMOTE_WAKEUP) {

		d->wakeup_en = is_set;

		return std_req_complete;

	}



	if (wValue == USB_DEVICE_TEST_MODE) {

		val = readl(d->vhub->regs + AST_VHUB_CTRL);

		val &= ~GENMASK(10, 8);

		val |= VHUB_CTRL_SET_TEST_MODE((wIndex >> 8) & 0x7);

		writel(val, d->vhub->regs + AST_VHUB_CTRL);



		return std_req_complete;

	}



	return std_req_driver;

}



static int ast_vhub_ep_feature(struct ast_vhub_dev *d,

			       u16 wIndex, u16 wValue, bool is_set)

{

drivers/usb/gadget/udc/aspeed-vhub/hub.c

+17 −6
Original line number Diff line number Diff line
@@ -212,19 +212,30 @@ static int ast_vhub_hub_dev_feature(struct ast_vhub_ep *ep, 
				    u16 wIndex, u16 wValue,

				    bool is_set)

{

	u32 val;



	EPDBG(ep, "%s_FEATURE(dev val=%02x)\n",

	      is_set ? "SET" : "CLEAR", wValue);



	if (wValue != USB_DEVICE_REMOTE_WAKEUP)

		return std_req_stall;



	if (wValue == USB_DEVICE_REMOTE_WAKEUP) {

		ep->vhub->wakeup_en = is_set;

		EPDBG(ep, "Hub remote wakeup %s\n",

		      is_set ? "enabled" : "disabled");

		return std_req_complete;

	}



	if (wValue == USB_DEVICE_TEST_MODE) {

		val = readl(ep->vhub->regs + AST_VHUB_CTRL);

		val &= ~GENMASK(10, 8);

		val |= VHUB_CTRL_SET_TEST_MODE((wIndex >> 8) & 0x7);

		writel(val, ep->vhub->regs + AST_VHUB_CTRL);



		return std_req_complete;

	}



	return std_req_stall;

}



static int ast_vhub_hub_ep_feature(struct ast_vhub_ep *ep,

				   u16 wIndex, u16 wValue,

				   bool is_set)