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 * Ported to U-Boot by: Thomas Smits <ts.smits@gmail.com> and
15 *                      Remy Bohmer <linux@bohmer.net>
16 */
17#ifdef CONFIG_USB_GADGET_NET2280
18#define	gadget_is_net2280(g)	(!strcmp("net2280", (g)->name))
19#else
20#define	gadget_is_net2280(g)	0
21#endif
22
23#ifdef CONFIG_USB_GADGET_AMD5536UDC
24#define	gadget_is_amd5536udc(g)	(!strcmp("amd5536udc", (g)->name))
25#else
26#define	gadget_is_amd5536udc(g)	0
27#endif
28
29#ifdef CONFIG_USB_GADGET_DUMMY_HCD
30#define	gadget_is_dummy(g)	(!strcmp("dummy_udc", (g)->name))
31#else
32#define	gadget_is_dummy(g)	0
33#endif
34
35#ifdef CONFIG_USB_GADGET_GOKU
36#define	gadget_is_goku(g)	(!strcmp("goku_udc", (g)->name))
37#else
38#define	gadget_is_goku(g)	0
39#endif
40
41/* SH3 UDC -- not yet ported 2.4 --> 2.6 */
42#ifdef CONFIG_USB_GADGET_SUPERH
43#define	gadget_is_sh(g)		(!strcmp("sh_udc", (g)->name))
44#else
45#define	gadget_is_sh(g)		0
46#endif
47
48/* handhelds.org tree (?) */
49#ifdef CONFIG_USB_GADGET_MQ11XX
50#define	gadget_is_mq11xx(g)	(!strcmp("mq11xx_udc", (g)->name))
51#else
52#define	gadget_is_mq11xx(g)	0
53#endif
54
55#ifdef CONFIG_USB_GADGET_OMAP
56#define	gadget_is_omap(g)	(!strcmp("omap_udc", (g)->name))
57#else
58#define	gadget_is_omap(g)	0
59#endif
60
61/* not yet ported 2.4 --> 2.6 */
62#ifdef CONFIG_USB_GADGET_N9604
63#define	gadget_is_n9604(g)	(!strcmp("n9604_udc", (g)->name))
64#else
65#define	gadget_is_n9604(g)	0
66#endif
67
68#ifdef CONFIG_USB_GADGET_ATMEL_USBA
69#define gadget_is_atmel_usba(g)	(!strcmp("atmel_usba_udc", (g)->name))
70#else
71#define gadget_is_atmel_usba(g)	0
72#endif
73
74#ifdef CONFIG_USB_GADGET_AT91
75#define gadget_is_at91(g)	(!strcmp("at91_udc", (g)->name))
76#else
77#define gadget_is_at91(g)	0
78#endif
79
80/* status unclear */
81#ifdef CONFIG_USB_GADGET_IMX
82#define gadget_is_imx(g)	(!strcmp("imx_udc", (g)->name))
83#else
84#define gadget_is_imx(g)	0
85#endif
86
87#ifdef CONFIG_USB_GADGET_FSL_USB2
88#define gadget_is_fsl_usb2(g)	(!strcmp("fsl-usb2-udc", (g)->name))
89#else
90#define gadget_is_fsl_usb2(g)	0
91#endif
92
93/* Mentor high speed function controller */
94/* from Montavista kernel (?) */
95#ifdef CONFIG_USB_GADGET_MUSBHSFC
96#define gadget_is_musbhsfc(g)	(!strcmp("musbhsfc_udc", (g)->name))
97#else
98#define gadget_is_musbhsfc(g)	0
99#endif
100
101/* Mentor high speed "dual role" controller, in peripheral role */
102#ifdef CONFIG_USB_MUSB_GADGET
103#define gadget_is_musbhdrc(g)	(!strcmp("musb-hdrc", (g)->name))
104#else
105#define gadget_is_musbhdrc(g)	0
106#endif
107
108#ifdef CONFIG_USB_GADGET_M66592
109#define	gadget_is_m66592(g)	(!strcmp("m66592_udc", (g)->name))
110#else
111#define	gadget_is_m66592(g)	0
112#endif
113
114#ifdef CONFIG_CI_UDC
115#define gadget_is_ci(g)        (!strcmp("ci_udc", (g)->name))
116#else
117#define gadget_is_ci(g)        0
118#endif
119
120#ifdef CONFIG_USB_DWC3_GADGET
121#define gadget_is_dwc3(g)        (!strcmp("dwc3-gadget", (g)->name))
122#else
123#define gadget_is_dwc3(g)        0
124#endif
125
126#ifdef CONFIG_USB_CDNS3_GADGET
127#define gadget_is_cdns3(g)        (!strcmp("cdns3-gadget", (g)->name))
128#else
129#define gadget_is_cdns3(g)        0
130#endif
131
132#ifdef CONFIG_USB_GADGET_MAX3420
133#define gadget_is_max3420(g)        (!strcmp("max3420-udc", (g)->name))
134#else
135#define gadget_is_max3420(g)        0
136#endif
137
138#ifdef CONFIG_USB_MTU3_GADGET
139#define gadget_is_mtu3(g)        (!strcmp("mtu3-gadget", (g)->name))
140#else
141#define gadget_is_mtu3(g)        0
142#endif
143
144#ifdef CONFIG_USB_GADGET_DWC2_OTG
145#define gadget_is_dwc2(g)        (!strcmp("dwc2-udc", (g)->name))
146#else
147#define gadget_is_dwc2(g)        0
148#endif
149
150/**
151 * usb_gadget_controller_number - support bcdDevice id convention
152 * @gadget: the controller being driven
153 *
154 * Return a 2-digit BCD value associated with the peripheral controller,
155 * suitable for use as part of a bcdDevice value, or a negative error code.
156 *
157 * NOTE:  this convention is purely optional, and has no meaning in terms of
158 * any USB specification.  If you want to use a different convention in your
159 * gadget driver firmware -- maybe a more formal revision ID -- feel free.
160 *
161 * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
162 * to change their behavior accordingly.  For example it might help avoiding
163 * some chip bug.
164 */
165static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
166{
167	if (gadget_is_net2280(gadget))
168		return 0x01;
169	else if (gadget_is_dummy(gadget))
170		return 0x02;
171	else if (gadget_is_sh(gadget))
172		return 0x04;
173	else if (gadget_is_goku(gadget))
174		return 0x06;
175	else if (gadget_is_mq11xx(gadget))
176		return 0x07;
177	else if (gadget_is_omap(gadget))
178		return 0x08;
179	else if (gadget_is_n9604(gadget))
180		return 0x09;
181	else if (gadget_is_at91(gadget))
182		return 0x12;
183	else if (gadget_is_imx(gadget))
184		return 0x13;
185	else if (gadget_is_musbhsfc(gadget))
186		return 0x14;
187	else if (gadget_is_musbhdrc(gadget))
188		return 0x15;
189	else if (gadget_is_atmel_usba(gadget))
190		return 0x17;
191	else if (gadget_is_fsl_usb2(gadget))
192		return 0x18;
193	else if (gadget_is_amd5536udc(gadget))
194		return 0x19;
195	else if (gadget_is_m66592(gadget))
196		return 0x20;
197	else if (gadget_is_ci(gadget))
198		return 0x21;
199	else if (gadget_is_dwc3(gadget))
200		return 0x23;
201	else if (gadget_is_cdns3(gadget))
202		return 0x24;
203	else if (gadget_is_max3420(gadget))
204		return 0x25;
205	else if (gadget_is_mtu3(gadget))
206		return 0x26;
207	else if (gadget_is_dwc2(gadget))
208		return 0x27;
209	return -ENOENT;
210}
211