tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 */
12#ifdef CONFIG_USB_GADGET_NET2280
13#define gadget_is_net2280(g) !strcmp("net2280", (g)->name)
14#else
15#define gadget_is_net2280(g) 0
16#endif
17
18#ifdef CONFIG_USB_GADGET_DUMMY_HCD
19#define gadget_is_dummy(g) !strcmp("dummy_udc", (g)->name)
20#else
21#define gadget_is_dummy(g) 0
22#endif
23
24#ifdef CONFIG_USB_GADGET_PXA2XX
25#define gadget_is_pxa(g) !strcmp("pxa2xx_udc", (g)->name)
26#else
27#define gadget_is_pxa(g) 0
28#endif
29
30#ifdef CONFIG_USB_GADGET_GOKU
31#define gadget_is_goku(g) !strcmp("goku_udc", (g)->name)
32#else
33#define gadget_is_goku(g) 0
34#endif
35
36#ifdef CONFIG_USB_GADGET_SUPERH
37#define gadget_is_sh(g) !strcmp("sh_udc", (g)->name)
38#else
39#define gadget_is_sh(g) 0
40#endif
41
42#ifdef CONFIG_USB_GADGET_SA1100
43#define gadget_is_sa1100(g) !strcmp("sa1100_udc", (g)->name)
44#else
45#define gadget_is_sa1100(g) 0
46#endif
47
48#ifdef CONFIG_USB_GADGET_LH7A40X
49#define gadget_is_lh7a40x(g) !strcmp("lh7a40x_udc", (g)->name)
50#else
51#define gadget_is_lh7a40x(g) 0
52#endif
53
54#ifdef CONFIG_USB_GADGET_MQ11XX
55#define gadget_is_mq11xx(g) !strcmp("mq11xx_udc", (g)->name)
56#else
57#define gadget_is_mq11xx(g) 0
58#endif
59
60#ifdef CONFIG_USB_GADGET_OMAP
61#define gadget_is_omap(g) !strcmp("omap_udc", (g)->name)
62#else
63#define gadget_is_omap(g) 0
64#endif
65
66#ifdef CONFIG_USB_GADGET_N9604
67#define gadget_is_n9604(g) !strcmp("n9604_udc", (g)->name)
68#else
69#define gadget_is_n9604(g) 0
70#endif
71
72#ifdef CONFIG_USB_GADGET_PXA27X
73#define gadget_is_pxa27x(g) !strcmp("pxa27x_udc", (g)->name)
74#else
75#define gadget_is_pxa27x(g) 0
76#endif
77
78#ifdef CONFIG_USB_GADGET_HUSB2DEV
79#define gadget_is_husb2dev(g) !strcmp("husb2_udc", (g)->name)
80#else
81#define gadget_is_husb2dev(g) 0
82#endif
83
84#ifdef CONFIG_USB_GADGET_S3C2410
85#define gadget_is_s3c2410(g) !strcmp("s3c2410_udc", (g)->name)
86#else
87#define gadget_is_s3c2410(g) 0
88#endif
89
90#ifdef CONFIG_USB_GADGET_AT91
91#define gadget_is_at91(g) !strcmp("at91_udc", (g)->name)
92#else
93#define gadget_is_at91(g) 0
94#endif
95
96#ifdef CONFIG_USB_GADGET_IMX
97#define gadget_is_imx(g) !strcmp("imx_udc", (g)->name)
98#else
99#define gadget_is_imx(g) 0
100#endif
101
102/* Mentor high speed function controller */
103#ifdef CONFIG_USB_GADGET_MUSBHSFC
104#define gadget_is_musbhsfc(g) !strcmp("musbhsfc_udc", (g)->name)
105#else
106#define gadget_is_musbhsfc(g) 0
107#endif
108
109/* Mentor high speed "dual role" controller, in peripheral role */
110#ifdef CONFIG_USB_GADGET_MUSB_HDRC
111#define gadget_is_musbhdrc(g) !strcmp("musb_hdrc", (g)->name)
112#else
113#define gadget_is_musbhdrc(g) 0
114#endif
115
116#ifdef CONFIG_USB_GADGET_MPC8272
117#define gadget_is_mpc8272(g) !strcmp("mpc8272_udc", (g)->name)
118#else
119#define gadget_is_mpc8272(g) 0
120#endif
121
122// CONFIG_USB_GADGET_SX2
123// CONFIG_USB_GADGET_AU1X00
124// ...
125
126
127/**
128 * usb_gadget_controller_number - support bcdDevice id convention
129 * @gadget: the controller being driven
130 *
131 * Return a 2-digit BCD value associated with the peripheral controller,
132 * suitable for use as part of a bcdDevice value, or a negative error code.
133 *
134 * NOTE: this convention is purely optional, and has no meaning in terms of
135 * any USB specification. If you want to use a different convention in your
136 * gadget driver firmware -- maybe a more formal revision ID -- feel free.
137 *
138 * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
139 * to change their behavior accordingly. For example it might help avoiding
140 * some chip bug.
141 */
142static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
143{
144 if (gadget_is_net2280(gadget))
145 return 0x01;
146 else if (gadget_is_dummy(gadget))
147 return 0x02;
148 else if (gadget_is_pxa(gadget))
149 return 0x03;
150 else if (gadget_is_sh(gadget))
151 return 0x04;
152 else if (gadget_is_sa1100(gadget))
153 return 0x05;
154 else if (gadget_is_goku(gadget))
155 return 0x06;
156 else if (gadget_is_mq11xx(gadget))
157 return 0x07;
158 else if (gadget_is_omap(gadget))
159 return 0x08;
160 else if (gadget_is_lh7a40x(gadget))
161 return 0x09;
162 else if (gadget_is_n9604(gadget))
163 return 0x10;
164 else if (gadget_is_pxa27x(gadget))
165 return 0x11;
166 else if (gadget_is_s3c2410(gadget))
167 return 0x12;
168 else if (gadget_is_at91(gadget))
169 return 0x13;
170 else if (gadget_is_imx(gadget))
171 return 0x14;
172 else if (gadget_is_musbhsfc(gadget))
173 return 0x15;
174 else if (gadget_is_musbhdrc(gadget))
175 return 0x16;
176 else if (gadget_is_mpc8272(gadget))
177 return 0x17;
178 else if (gadget_is_husb2dev(gadget))
179 return 0x18;
180 return -ENOENT;
181}