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usb: gadget: langwell_udc: add usb test mode support

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This patch adds test mode support for Langwell gadget driver.

Signed-off-by: Henry Yuan <hang.yuan@intel.com>
Signed-off-by: Andy Luo <yifei.luo@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Luo Andy 2010-11-23 10:41:21 +08:00 committed by Greg Kroah-Hartman
parent b23f2f9413
commit 7fc56f0d99
2 changed files with 33 additions and 0 deletions
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23
drivers/usb/gadget/langwell_udc.c
View file

@ -2225,6 +2225,7 @@ static void handle_setup_packet(struct langwell_udc *dev,
u16 wValue = le16_to_cpu(setup->wValue);
u16 wIndex = le16_to_cpu(setup->wIndex);
u16 wLength = le16_to_cpu(setup->wLength);
u32 portsc1;
dev_vdbg(&dev->pdev->dev, "---> %s()\n", __func__);
@ -2313,6 +2314,28 @@ static void handle_setup_packet(struct langwell_udc *dev,
dev->dev_status &= ~(1 << wValue);
}
break;
case USB_DEVICE_TEST_MODE:
dev_dbg(&dev->pdev->dev, "SETUP: TEST MODE\n");
if ((wIndex & 0xff) ||
(dev->gadget.speed != USB_SPEED_HIGH))
ep0_stall(dev);
switch (wIndex >> 8) {
case TEST_J:
case TEST_K:
case TEST_SE0_NAK:
case TEST_PACKET:
case TEST_FORCE_EN:
if (prime_status_phase(dev, EP_DIR_IN))
ep0_stall(dev);
portsc1 = readl(&dev->op_regs->portsc1);
portsc1 |= (wIndex & 0xf00) << 8;
writel(portsc1, &dev->op_regs->portsc1);
goto end;
default:
rc = -EOPNOTSUPP;
}
break;
default:
rc = -EOPNOTSUPP;
break;

10
include/linux/usb/ch9.h
View file

@ -123,6 +123,16 @@
#define USB_DEVICE_A_ALT_HNP_SUPPORT 5 /* (otg) other RH port does */
#define USB_DEVICE_DEBUG_MODE 6 /* (special devices only) */
/*
* Test Mode Selectors
* See USB 2.0 spec Table 9-7
*/
#define TEST_J 1
#define TEST_K 2
#define TEST_SE0_NAK 3
#define TEST_PACKET 4
#define TEST_FORCE_EN 5
/*
* New Feature Selectors as added by USB 3.0
* See USB 3.0 spec Table 9-6