blob: bcd04bc66b98fdd1bc881b4319bd7b35dd78b186 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * USB device controllers have lots of quirks. Use these macros in
3 * gadget drivers or other code that needs to deal with them, and which
4 * autoconfigures instead of using early binding to the hardware.
5 *
David Brownell1c05ad42006-01-25 08:45:59 -08006 * This SHOULD eventually work like the ARM mach_is_*() stuff, driven by
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * some config file that gets updated as new hardware is supported.
David Brownell1c05ad42006-01-25 08:45:59 -08008 * (And avoiding all runtime comparisons in typical one-choice configs!)
Linus Torvalds1da177e2005-04-16 15:20:36 -07009 *
10 * NOTE: some of these controller drivers may not be available yet.
David Brownell7f9985c2007-05-08 21:01:30 -070011 * Some are available on 2.4 kernels; several are available, but not
12 * yet pushed in the 2.6 mainline tree.
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 */
Felipe Balbie67d70f2008-07-17 17:26:49 +030014
15#ifndef __GADGET_CHIPS_H
16#define __GADGET_CHIPS_H
17
Sebastian Andrzej Siewiordc995fc2012-09-06 20:11:12 +020018#include <linux/usb/gadget.h>
19
Felipe Balbi199e7ed2011-06-13 18:43:59 +030020/*
21 * NOTICE: the entries below are alphabetical and should be kept
22 * that way.
23 *
24 * Always be sure to add new entries to the correct position or
25 * accept the bashing later.
26 *
27 * If you have forgotten the alphabetical order let VIM/EMACS
28 * do that for you.
29 */
Felipe Balbi199e7ed2011-06-13 18:43:59 +030030#define gadget_is_at91(g) (!strcmp("at91_udc", (g)->name))
Felipe Balbi199e7ed2011-06-13 18:43:59 +030031#define gadget_is_goku(g) (!strcmp("goku_udc", (g)->name))
Felipe Balbi199e7ed2011-06-13 18:43:59 +030032#define gadget_is_musbhdrc(g) (!strcmp("musb-hdrc", (g)->name))
Felipe Balbi199e7ed2011-06-13 18:43:59 +030033#define gadget_is_net2280(g) (!strcmp("net2280", (g)->name))
Felipe Balbi199e7ed2011-06-13 18:43:59 +030034#define gadget_is_pxa(g) (!strcmp("pxa25x_udc", (g)->name))
35#define gadget_is_pxa27x(g) (!strcmp("pxa27x_udc", (g)->name))
David Brownellda741b82008-06-19 18:19:46 -070036
37/**
38 * gadget_supports_altsettings - return true if altsettings work
39 * @gadget: the gadget in question
40 */
41static inline bool gadget_supports_altsettings(struct usb_gadget *gadget)
42{
43 /* PXA 21x/25x/26x has no altsettings at all */
44 if (gadget_is_pxa(gadget))
45 return false;
46
47 /* PXA 27x and 3xx have *broken* altsetting support */
48 if (gadget_is_pxa27x(gadget))
49 return false;
50
David Brownellda741b82008-06-19 18:19:46 -070051 /* Everything else is *presumably* fine ... */
52 return true;
53}
Felipe Balbie67d70f2008-07-17 17:26:49 +030054
55#endif /* __GADGET_CHIPS_H */