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_PXA2XX
36 #define	gadget_is_pxa(g)	(!strcmp("pxa2xx_udc", (g)->name))
37 #else
38 #define	gadget_is_pxa(g)	0
39 #endif
40 
41 #ifdef CONFIG_USB_GADGET_GOKU
42 #define	gadget_is_goku(g)	(!strcmp("goku_udc", (g)->name))
43 #else
44 #define	gadget_is_goku(g)	0
45 #endif
46 
47 /* SH3 UDC -- not yet ported 2.4 --> 2.6 */
48 #ifdef CONFIG_USB_GADGET_SUPERH
49 #define	gadget_is_sh(g)		(!strcmp("sh_udc", (g)->name))
50 #else
51 #define	gadget_is_sh(g)		0
52 #endif
53 
54 /* not yet stable on 2.6 (would help "original Zaurus") */
55 #ifdef CONFIG_USB_GADGET_SA1100
56 #define	gadget_is_sa1100(g)	(!strcmp("sa1100_udc", (g)->name))
57 #else
58 #define	gadget_is_sa1100(g)	0
59 #endif
60 
61 /* handhelds.org tree (?) */
62 #ifdef CONFIG_USB_GADGET_MQ11XX
63 #define	gadget_is_mq11xx(g)	(!strcmp("mq11xx_udc", (g)->name))
64 #else
65 #define	gadget_is_mq11xx(g)	0
66 #endif
67 
68 #ifdef CONFIG_USB_GADGET_OMAP
69 #define	gadget_is_omap(g)	(!strcmp("omap_udc", (g)->name))
70 #else
71 #define	gadget_is_omap(g)	0
72 #endif
73 
74 /* not yet ported 2.4 --> 2.6 */
75 #ifdef CONFIG_USB_GADGET_N9604
76 #define	gadget_is_n9604(g)	(!strcmp("n9604_udc", (g)->name))
77 #else
78 #define	gadget_is_n9604(g)	0
79 #endif
80 
81 /* various unstable versions available */
82 #ifdef CONFIG_USB_GADGET_PXA27X
83 #define	gadget_is_pxa27x(g)	(!strcmp("pxa27x_udc", (g)->name))
84 #else
85 #define	gadget_is_pxa27x(g)	0
86 #endif
87 
88 #ifdef CONFIG_USB_GADGET_ATMEL_USBA
89 #define gadget_is_atmel_usba(g)	(!strcmp("atmel_usba_udc", (g)->name))
90 #else
91 #define gadget_is_atmel_usba(g)	0
92 #endif
93 
94 #ifdef CONFIG_USB_GADGET_S3C2410
95 #define gadget_is_s3c2410(g)    (!strcmp("s3c2410_udc", (g)->name))
96 #else
97 #define gadget_is_s3c2410(g)    0
98 #endif
99 
100 #ifdef CONFIG_USB_GADGET_AT91
101 #define gadget_is_at91(g)	(!strcmp("at91_udc", (g)->name))
102 #else
103 #define gadget_is_at91(g)	0
104 #endif
105 
106 /* status unclear */
107 #ifdef CONFIG_USB_GADGET_IMX
108 #define gadget_is_imx(g)	(!strcmp("imx_udc", (g)->name))
109 #else
110 #define gadget_is_imx(g)	0
111 #endif
112 
113 #ifdef CONFIG_USB_GADGET_FSL_USB2
114 #define gadget_is_fsl_usb2(g)	(!strcmp("fsl-usb2-udc", (g)->name))
115 #else
116 #define gadget_is_fsl_usb2(g)	0
117 #endif
118 
119 /* Mentor high speed function controller */
120 /* from Montavista kernel (?) */
121 #ifdef CONFIG_USB_GADGET_MUSBHSFC
122 #define gadget_is_musbhsfc(g)	(!strcmp("musbhsfc_udc", (g)->name))
123 #else
124 #define gadget_is_musbhsfc(g)	0
125 #endif
126 
127 /* Mentor high speed "dual role" controller, in peripheral role */
128 #ifdef CONFIG_USB_GADGET_MUSB_HDRC
129 #define gadget_is_musbhdrc(g)	(!strcmp("musb_hdrc", (g)->name))
130 #else
131 #define gadget_is_musbhdrc(g)	0
132 #endif
133 
134 /* from Montavista kernel (?) */
135 #ifdef CONFIG_USB_GADGET_MPC8272
136 #define gadget_is_mpc8272(g)	(!strcmp("mpc8272_udc", (g)->name))
137 #else
138 #define gadget_is_mpc8272(g)	0
139 #endif
140 
141 #ifdef CONFIG_USB_GADGET_M66592
142 #define	gadget_is_m66592(g)	(!strcmp("m66592_udc", (g)->name))
143 #else
144 #define	gadget_is_m66592(g)	0
145 #endif
146 
147 #ifdef CONFIG_USB_GADGET_MV
148 #define gadget_is_mv(g)        (!strcmp("mv_udc", (g)->name))
149 #else
150 #define gadget_is_mv(g)        0
151 #endif
152 
153 /*
154  * CONFIG_USB_GADGET_SX2
155  * CONFIG_USB_GADGET_AU1X00
156  * ...
157  */
158 
159 /**
160  * usb_gadget_controller_number - support bcdDevice id convention
161  * @gadget: the controller being driven
162  *
163  * Return a 2-digit BCD value associated with the peripheral controller,
164  * suitable for use as part of a bcdDevice value, or a negative error code.
165  *
166  * NOTE:  this convention is purely optional, and has no meaning in terms of
167  * any USB specification.  If you want to use a different convention in your
168  * gadget driver firmware -- maybe a more formal revision ID -- feel free.
169  *
170  * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
171  * to change their behavior accordingly.  For example it might help avoiding
172  * some chip bug.
173  */
174 static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
175 {
176 	if (gadget_is_net2280(gadget))
177 		return 0x01;
178 	else if (gadget_is_dummy(gadget))
179 		return 0x02;
180 	else if (gadget_is_pxa(gadget))
181 		return 0x03;
182 	else if (gadget_is_sh(gadget))
183 		return 0x04;
184 	else if (gadget_is_sa1100(gadget))
185 		return 0x05;
186 	else if (gadget_is_goku(gadget))
187 		return 0x06;
188 	else if (gadget_is_mq11xx(gadget))
189 		return 0x07;
190 	else if (gadget_is_omap(gadget))
191 		return 0x08;
192 	else if (gadget_is_n9604(gadget))
193 		return 0x09;
194 	else if (gadget_is_pxa27x(gadget))
195 		return 0x10;
196 	else if (gadget_is_s3c2410(gadget))
197 		return 0x11;
198 	else if (gadget_is_at91(gadget))
199 		return 0x12;
200 	else if (gadget_is_imx(gadget))
201 		return 0x13;
202 	else if (gadget_is_musbhsfc(gadget))
203 		return 0x14;
204 	else if (gadget_is_musbhdrc(gadget))
205 		return 0x15;
206 	else if (gadget_is_mpc8272(gadget))
207 		return 0x16;
208 	else if (gadget_is_atmel_usba(gadget))
209 		return 0x17;
210 	else if (gadget_is_fsl_usb2(gadget))
211 		return 0x18;
212 	else if (gadget_is_amd5536udc(gadget))
213 		return 0x19;
214 	else if (gadget_is_m66592(gadget))
215 		return 0x20;
216 	else if (gadget_is_mv(gadget))
217 		return 0x21;
218 	return -ENOENT;
219 }
220