alistair23-linux/drivers/usb/core/otg_whitelist.h
Greg Kroah-Hartman f9d4d453db USB: core: Remove redundant license text
Now that the SPDX tag is in all USB files, that identifies the license
in a specific and legally-defined manner.  So the extra GPL text wording
can be removed as it is no longer needed at all.

This is done on a quest to remove the 700+ different ways that files in
the kernel describe the GPL license text.  And there's unneeded stuff
like the address (sometimes incorrect) for the FSF which is never
needed.

No copyright headers or other non-license-description text was removed.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-04 11:55:39 +01:00

107 lines
3.1 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* drivers/usb/core/otg_whitelist.h
*
* Copyright (C) 2004 Texas Instruments
*/
/*
* This OTG and Embedded Host Whitelist is "Targeted Peripheral List".
* It should mostly use of USB_DEVICE() or USB_DEVICE_VER() entries..
*
* YOU _SHOULD_ CHANGE THIS LIST TO MATCH YOUR PRODUCT AND ITS TESTING!
*/
static struct usb_device_id whitelist_table[] = {
/* hubs are optional in OTG, but very handy ... */
{ USB_DEVICE_INFO(USB_CLASS_HUB, 0, 0), },
{ USB_DEVICE_INFO(USB_CLASS_HUB, 0, 1), },
#ifdef CONFIG_USB_PRINTER /* ignoring nonstatic linkage! */
/* FIXME actually, printers are NOT supposed to use device classes;
* they're supposed to use interface classes...
*/
{ USB_DEVICE_INFO(7, 1, 1) },
{ USB_DEVICE_INFO(7, 1, 2) },
{ USB_DEVICE_INFO(7, 1, 3) },
#endif
#ifdef CONFIG_USB_NET_CDCETHER
/* Linux-USB CDC Ethernet gadget */
{ USB_DEVICE(0x0525, 0xa4a1), },
/* Linux-USB CDC Ethernet + RNDIS gadget */
{ USB_DEVICE(0x0525, 0xa4a2), },
#endif
#if IS_ENABLED(CONFIG_USB_TEST)
/* gadget zero, for testing */
{ USB_DEVICE(0x0525, 0xa4a0), },
#endif
{ } /* Terminating entry */
};
static int is_targeted(struct usb_device *dev)
{
struct usb_device_id *id = whitelist_table;
/* HNP test device is _never_ targeted (see OTG spec 6.6.6) */
if ((le16_to_cpu(dev->descriptor.idVendor) == 0x1a0a &&
le16_to_cpu(dev->descriptor.idProduct) == 0xbadd))
return 0;
/* OTG PET device is always targeted (see OTG 2.0 ECN 6.4.2) */
if ((le16_to_cpu(dev->descriptor.idVendor) == 0x1a0a &&
le16_to_cpu(dev->descriptor.idProduct) == 0x0200))
return 1;
/* NOTE: can't use usb_match_id() since interface caches
* aren't set up yet. this is cut/paste from that code.
*/
for (id = whitelist_table; id->match_flags; id++) {
if ((id->match_flags & USB_DEVICE_ID_MATCH_VENDOR) &&
id->idVendor != le16_to_cpu(dev->descriptor.idVendor))
continue;
if ((id->match_flags & USB_DEVICE_ID_MATCH_PRODUCT) &&
id->idProduct != le16_to_cpu(dev->descriptor.idProduct))
continue;
/* No need to test id->bcdDevice_lo != 0, since 0 is never
greater than any unsigned number. */
if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO) &&
(id->bcdDevice_lo > le16_to_cpu(dev->descriptor.bcdDevice)))
continue;
if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI) &&
(id->bcdDevice_hi < le16_to_cpu(dev->descriptor.bcdDevice)))
continue;
if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_CLASS) &&
(id->bDeviceClass != dev->descriptor.bDeviceClass))
continue;
if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_SUBCLASS) &&
(id->bDeviceSubClass != dev->descriptor.bDeviceSubClass))
continue;
if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_PROTOCOL) &&
(id->bDeviceProtocol != dev->descriptor.bDeviceProtocol))
continue;
return 1;
}
/* add other match criteria here ... */
/* OTG MESSAGE: report errors here, customize to match your product */
dev_err(&dev->dev, "device v%04x p%04x is not supported\n",
le16_to_cpu(dev->descriptor.idVendor),
le16_to_cpu(dev->descriptor.idProduct));
return 0;
}