1 /* 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 * 6 * This SHOULD eventually work like the ARM mach_is_*() stuff, driven by 7 * some config file that gets updated as new hardware is supported. 8 * (And avoiding all runtime comparisons in typical one-choice configs!) 9 * 10 * NOTE: some of these controller drivers may not be available yet. 11 * Some are available on 2.4 kernels; several are available, but not 12 * yet pushed in the 2.6 mainline tree. 13 */ 14 15 #ifndef __GADGET_CHIPS_H 16 #define __GADGET_CHIPS_H 17 18 #include <linux/usb/gadget.h> 19 20 /* 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 */ 30 #define gadget_is_at91(g) (!strcmp("at91_udc", (g)->name)) 31 #define gadget_is_goku(g) (!strcmp("goku_udc", (g)->name)) 32 #define gadget_is_musbhdrc(g) (!strcmp("musb-hdrc", (g)->name)) 33 #define gadget_is_net2280(g) (!strcmp("net2280", (g)->name)) 34 #define gadget_is_pxa(g) (!strcmp("pxa25x_udc", (g)->name)) 35 #define gadget_is_pxa27x(g) (!strcmp("pxa27x_udc", (g)->name)) 36 37 /** 38 * gadget_supports_altsettings - return true if altsettings work 39 * @gadget: the gadget in question 40 */ gadget_supports_altsettings(struct usb_gadget * gadget)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 51 /* Everything else is *presumably* fine ... */ 52 return true; 53 } 54 55 #endif /* __GADGET_CHIPS_H */ 56