Merge remote-tracking branch 'driver-core/driver-core-next'
[linux-2.6/next.git] / drivers / usb / gadget / gadget_chips.h
blobf3a83cd0ef5043276a9986e2a9d77bdc4cff7dd7
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.
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!)
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.
15 #ifndef __GADGET_CHIPS_H
16 #define __GADGET_CHIPS_H
19 * NOTICE: the entries below are alphabetical and should be kept
20 * that way.
22 * Always be sure to add new entries to the correct position or
23 * accept the bashing later.
25 * If you have forgotten the alphabetical order let VIM/EMACS
26 * do that for you.
28 #define gadget_is_amd5536udc(g) (!strcmp("amd5536udc", (g)->name))
29 #define gadget_is_at91(g) (!strcmp("at91_udc", (g)->name))
30 #define gadget_is_atmel_usba(g) (!strcmp("atmel_usba_udc", (g)->name))
31 #define gadget_is_ci13xxx_msm(g) (!strcmp("ci13xxx_msm", (g)->name))
32 #define gadget_is_ci13xxx_pci(g) (!strcmp("ci13xxx_pci", (g)->name))
33 #define gadget_is_dummy(g) (!strcmp("dummy_udc", (g)->name))
34 #define gadget_is_fsl_qe(g) (!strcmp("fsl_qe_udc", (g)->name))
35 #define gadget_is_fsl_usb2(g) (!strcmp("fsl-usb2-udc", (g)->name))
36 #define gadget_is_goku(g) (!strcmp("goku_udc", (g)->name))
37 #define gadget_is_imx(g) (!strcmp("imx_udc", (g)->name))
38 #define gadget_is_langwell(g) (!strcmp("langwell_udc", (g)->name))
39 #define gadget_is_m66592(g) (!strcmp("m66592_udc", (g)->name))
40 #define gadget_is_musbhdrc(g) (!strcmp("musb-hdrc", (g)->name))
41 #define gadget_is_net2272(g) (!strcmp("net2272", (g)->name))
42 #define gadget_is_net2280(g) (!strcmp("net2280", (g)->name))
43 #define gadget_is_omap(g) (!strcmp("omap_udc", (g)->name))
44 #define gadget_is_pch(g) (!strcmp("pch_udc", (g)->name))
45 #define gadget_is_pxa(g) (!strcmp("pxa25x_udc", (g)->name))
46 #define gadget_is_pxa27x(g) (!strcmp("pxa27x_udc", (g)->name))
47 #define gadget_is_r8a66597(g) (!strcmp("r8a66597_udc", (g)->name))
48 #define gadget_is_renesas_usbhs(g) (!strcmp("renesas_usbhs_udc", (g)->name))
49 #define gadget_is_s3c2410(g) (!strcmp("s3c2410_udc", (g)->name))
50 #define gadget_is_s3c_hsotg(g) (!strcmp("s3c-hsotg", (g)->name))
51 #define gadget_is_s3c_hsudc(g) (!strcmp("s3c-hsudc", (g)->name))
53 /**
54 * usb_gadget_controller_number - support bcdDevice id convention
55 * @gadget: the controller being driven
57 * Return a 2-digit BCD value associated with the peripheral controller,
58 * suitable for use as part of a bcdDevice value, or a negative error code.
60 * NOTE: this convention is purely optional, and has no meaning in terms of
61 * any USB specification. If you want to use a different convention in your
62 * gadget driver firmware -- maybe a more formal revision ID -- feel free.
64 * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
65 * to change their behavior accordingly. For example it might help avoiding
66 * some chip bug.
68 static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
70 if (gadget_is_net2280(gadget))
71 return 0x01;
72 else if (gadget_is_dummy(gadget))
73 return 0x02;
74 else if (gadget_is_pxa(gadget))
75 return 0x03;
76 else if (gadget_is_goku(gadget))
77 return 0x06;
78 else if (gadget_is_omap(gadget))
79 return 0x08;
80 else if (gadget_is_pxa27x(gadget))
81 return 0x11;
82 else if (gadget_is_s3c2410(gadget))
83 return 0x12;
84 else if (gadget_is_at91(gadget))
85 return 0x13;
86 else if (gadget_is_imx(gadget))
87 return 0x14;
88 else if (gadget_is_musbhdrc(gadget))
89 return 0x16;
90 else if (gadget_is_atmel_usba(gadget))
91 return 0x18;
92 else if (gadget_is_fsl_usb2(gadget))
93 return 0x19;
94 else if (gadget_is_amd5536udc(gadget))
95 return 0x20;
96 else if (gadget_is_m66592(gadget))
97 return 0x21;
98 else if (gadget_is_fsl_qe(gadget))
99 return 0x22;
100 else if (gadget_is_ci13xxx_pci(gadget))
101 return 0x23;
102 else if (gadget_is_langwell(gadget))
103 return 0x24;
104 else if (gadget_is_r8a66597(gadget))
105 return 0x25;
106 else if (gadget_is_s3c_hsotg(gadget))
107 return 0x26;
108 else if (gadget_is_pch(gadget))
109 return 0x27;
110 else if (gadget_is_ci13xxx_msm(gadget))
111 return 0x28;
112 else if (gadget_is_renesas_usbhs(gadget))
113 return 0x29;
114 else if (gadget_is_s3c_hsudc(gadget))
115 return 0x30;
116 else if (gadget_is_net2272(gadget))
117 return 0x31;
119 return -ENOENT;
124 * gadget_supports_altsettings - return true if altsettings work
125 * @gadget: the gadget in question
127 static inline bool gadget_supports_altsettings(struct usb_gadget *gadget)
129 /* PXA 21x/25x/26x has no altsettings at all */
130 if (gadget_is_pxa(gadget))
131 return false;
133 /* PXA 27x and 3xx have *broken* altsetting support */
134 if (gadget_is_pxa27x(gadget))
135 return false;
137 /* Everything else is *presumably* fine ... */
138 return true;
141 #endif /* __GADGET_CHIPS_H */