tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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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 * Some are available on 2.4 kernels; several are available, but not
12 * yet pushed in the 2.6 mainline tree.
13 */
14#ifdef CONFIG_USB_GADGET_NET2280
15#define gadget_is_net2280(g) !strcmp("net2280", (g)->name)
16#else
17#define gadget_is_net2280(g) 0
18#endif
19
20#ifdef CONFIG_USB_GADGET_AMD5536UDC
21#define gadget_is_amd5536udc(g) !strcmp("amd5536udc", (g)->name)
22#else
23#define gadget_is_amd5536udc(g) 0
24#endif
25
26#ifdef CONFIG_USB_GADGET_DUMMY_HCD
27#define gadget_is_dummy(g) !strcmp("dummy_udc", (g)->name)
28#else
29#define gadget_is_dummy(g) 0
30#endif
31
32#ifdef CONFIG_USB_GADGET_PXA2XX
33#define gadget_is_pxa(g) !strcmp("pxa2xx_udc", (g)->name)
34#else
35#define gadget_is_pxa(g) 0
36#endif
37
38#ifdef CONFIG_USB_GADGET_GOKU
39#define gadget_is_goku(g) !strcmp("goku_udc", (g)->name)
40#else
41#define gadget_is_goku(g) 0
42#endif
43
44/* SH3 UDC -- not yet ported 2.4 --> 2.6 */
45#ifdef CONFIG_USB_GADGET_SUPERH
46#define gadget_is_sh(g) !strcmp("sh_udc", (g)->name)
47#else
48#define gadget_is_sh(g) 0
49#endif
50
51/* not yet stable on 2.6 (would help "original Zaurus") */
52#ifdef CONFIG_USB_GADGET_SA1100
53#define gadget_is_sa1100(g) !strcmp("sa1100_udc", (g)->name)
54#else
55#define gadget_is_sa1100(g) 0
56#endif
57
58#ifdef CONFIG_USB_GADGET_LH7A40X
59#define gadget_is_lh7a40x(g) !strcmp("lh7a40x_udc", (g)->name)
60#else
61#define gadget_is_lh7a40x(g) 0
62#endif
63
64/* handhelds.org tree (?) */
65#ifdef CONFIG_USB_GADGET_MQ11XX
66#define gadget_is_mq11xx(g) !strcmp("mq11xx_udc", (g)->name)
67#else
68#define gadget_is_mq11xx(g) 0
69#endif
70
71#ifdef CONFIG_USB_GADGET_OMAP
72#define gadget_is_omap(g) !strcmp("omap_udc", (g)->name)
73#else
74#define gadget_is_omap(g) 0
75#endif
76
77/* not yet ported 2.4 --> 2.6 */
78#ifdef CONFIG_USB_GADGET_N9604
79#define gadget_is_n9604(g) !strcmp("n9604_udc", (g)->name)
80#else
81#define gadget_is_n9604(g) 0
82#endif
83
84/* various unstable versions available */
85#ifdef CONFIG_USB_GADGET_PXA27X
86#define gadget_is_pxa27x(g) !strcmp("pxa27x_udc", (g)->name)
87#else
88#define gadget_is_pxa27x(g) 0
89#endif
90
91#ifdef CONFIG_USB_GADGET_ATMEL_USBA
92#define gadget_is_atmel_usba(g) !strcmp("atmel_usba_udc", (g)->name)
93#else
94#define gadget_is_atmel_usba(g) 0
95#endif
96
97#ifdef CONFIG_USB_GADGET_S3C2410
98#define gadget_is_s3c2410(g) !strcmp("s3c2410_udc", (g)->name)
99#else
100#define gadget_is_s3c2410(g) 0
101#endif
102
103#ifdef CONFIG_USB_GADGET_AT91
104#define gadget_is_at91(g) !strcmp("at91_udc", (g)->name)
105#else
106#define gadget_is_at91(g) 0
107#endif
108
109/* status unclear */
110#ifdef CONFIG_USB_GADGET_IMX
111#define gadget_is_imx(g) !strcmp("imx_udc", (g)->name)
112#else
113#define gadget_is_imx(g) 0
114#endif
115
116#ifdef CONFIG_USB_GADGET_FSL_USB2
117#define gadget_is_fsl_usb2(g) !strcmp("fsl-usb2-udc", (g)->name)
118#else
119#define gadget_is_fsl_usb2(g) 0
120#endif
121
122/* Mentor high speed function controller */
123/* from Montavista kernel (?) */
124#ifdef CONFIG_USB_GADGET_MUSBHSFC
125#define gadget_is_musbhsfc(g) !strcmp("musbhsfc_udc", (g)->name)
126#else
127#define gadget_is_musbhsfc(g) 0
128#endif
129
130/* Mentor high speed "dual role" controller, in peripheral role */
131#ifdef CONFIG_USB_GADGET_MUSB_HDRC
132#define gadget_is_musbhdrc(g) !strcmp("musb_hdrc", (g)->name)
133#else
134#define gadget_is_musbhdrc(g) 0
135#endif
136
137/* from Montavista kernel (?) */
138#ifdef CONFIG_USB_GADGET_MPC8272
139#define gadget_is_mpc8272(g) !strcmp("mpc8272_udc", (g)->name)
140#else
141#define gadget_is_mpc8272(g) 0
142#endif
143
144#ifdef CONFIG_USB_GADGET_M66592
145#define gadget_is_m66592(g) !strcmp("m66592_udc", (g)->name)
146#else
147#define gadget_is_m66592(g) 0
148#endif
149
150
151// CONFIG_USB_GADGET_SX2
152// CONFIG_USB_GADGET_AU1X00
153// ...
154
155
156/**
157 * usb_gadget_controller_number - support bcdDevice id convention
158 * @gadget: the controller being driven
159 *
160 * Return a 2-digit BCD value associated with the peripheral controller,
161 * suitable for use as part of a bcdDevice value, or a negative error code.
162 *
163 * NOTE: this convention is purely optional, and has no meaning in terms of
164 * any USB specification. If you want to use a different convention in your
165 * gadget driver firmware -- maybe a more formal revision ID -- feel free.
166 *
167 * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
168 * to change their behavior accordingly. For example it might help avoiding
169 * some chip bug.
170 */
171static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
172{
173 if (gadget_is_net2280(gadget))
174 return 0x01;
175 else if (gadget_is_dummy(gadget))
176 return 0x02;
177 else if (gadget_is_pxa(gadget))
178 return 0x03;
179 else if (gadget_is_sh(gadget))
180 return 0x04;
181 else if (gadget_is_sa1100(gadget))
182 return 0x05;
183 else if (gadget_is_goku(gadget))
184 return 0x06;
185 else if (gadget_is_mq11xx(gadget))
186 return 0x07;
187 else if (gadget_is_omap(gadget))
188 return 0x08;
189 else if (gadget_is_lh7a40x(gadget))
190 return 0x09;
191 else if (gadget_is_n9604(gadget))
192 return 0x10;
193 else if (gadget_is_pxa27x(gadget))
194 return 0x11;
195 else if (gadget_is_s3c2410(gadget))
196 return 0x12;
197 else if (gadget_is_at91(gadget))
198 return 0x13;
199 else if (gadget_is_imx(gadget))
200 return 0x14;
201 else if (gadget_is_musbhsfc(gadget))
202 return 0x15;
203 else if (gadget_is_musbhdrc(gadget))
204 return 0x16;
205 else if (gadget_is_mpc8272(gadget))
206 return 0x17;
207 else if (gadget_is_atmel_usba(gadget))
208 return 0x18;
209 else if (gadget_is_fsl_usb2(gadget))
210 return 0x19;
211 else if (gadget_is_amd5536udc(gadget))
212 return 0x20;
213 else if (gadget_is_m66592(gadget))
214 return 0x21;
215 return -ENOENT;
216}