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
15 #ifndef __GADGET_CHIPS_H
16 #define __GADGET_CHIPS_H
17
18 #ifdef CONFIG_USB_GADGET_NET2280
19 #define gadget_is_net2280(g) !strcmp("net2280", (g)->name)
20 #else
21 #define gadget_is_net2280(g) 0
22 #endif
23
24 #ifdef CONFIG_USB_GADGET_AMD5536UDC
25 #define gadget_is_amd5536udc(g) !strcmp("amd5536udc", (g)->name)
26 #else
27 #define gadget_is_amd5536udc(g) 0
28 #endif
29
30 #ifdef CONFIG_USB_GADGET_DUMMY_HCD
31 #define gadget_is_dummy(g) !strcmp("dummy_udc", (g)->name)
32 #else
33 #define gadget_is_dummy(g) 0
34 #endif
35
36 #ifdef CONFIG_USB_GADGET_PXA25X
37 #define gadget_is_pxa(g) !strcmp("pxa25x_udc", (g)->name)
38 #else
39 #define gadget_is_pxa(g) 0
40 #endif
41
42 #ifdef CONFIG_USB_GADGET_GOKU
43 #define gadget_is_goku(g) !strcmp("goku_udc", (g)->name)
44 #else
45 #define gadget_is_goku(g) 0
46 #endif
47
48 #ifdef CONFIG_USB_GADGET_OMAP
49 #define gadget_is_omap(g) !strcmp("omap_udc", (g)->name)
50 #else
51 #define gadget_is_omap(g) 0
52 #endif
53
54 /* various unstable versions available */
55 #ifdef CONFIG_USB_GADGET_PXA27X
56 #define gadget_is_pxa27x(g) !strcmp("pxa27x_udc", (g)->name)
57 #else
58 #define gadget_is_pxa27x(g) 0
59 #endif
60
61 #ifdef CONFIG_USB_GADGET_ATMEL_USBA
62 #define gadget_is_atmel_usba(g) !strcmp("atmel_usba_udc", (g)->name)
63 #else
64 #define gadget_is_atmel_usba(g) 0
65 #endif
66
67 #ifdef CONFIG_USB_GADGET_S3C2410
68 #define gadget_is_s3c2410(g) !strcmp("s3c2410_udc", (g)->name)
69 #else
70 #define gadget_is_s3c2410(g) 0
71 #endif
72
73 #ifdef CONFIG_USB_GADGET_AT91
74 #define gadget_is_at91(g) !strcmp("at91_udc", (g)->name)
75 #else
76 #define gadget_is_at91(g) 0
77 #endif
78
79 #ifdef CONFIG_USB_GADGET_IMX
80 #define gadget_is_imx(g) !strcmp("imx_udc", (g)->name)
81 #else
82 #define gadget_is_imx(g) 0
83 #endif
84
85 #ifdef CONFIG_USB_GADGET_FSL_USB2
86 #define gadget_is_fsl_usb2(g) !strcmp("fsl-usb2-udc", (g)->name)
87 #else
88 #define gadget_is_fsl_usb2(g) 0
89 #endif
90
91 /* Mentor high speed "dual role" controller, in peripheral role */
92 #ifdef CONFIG_USB_GADGET_MUSB_HDRC
93 #define gadget_is_musbhdrc(g) !strcmp("musb-hdrc", (g)->name)
94 #else
95 #define gadget_is_musbhdrc(g) 0
96 #endif
97
98 #ifdef CONFIG_USB_GADGET_LANGWELL
99 #define gadget_is_langwell(g) (!strcmp("langwell_udc", (g)->name))
100 #else
101 #define gadget_is_langwell(g) 0
102 #endif
103
104 #ifdef CONFIG_USB_GADGET_M66592
105 #define gadget_is_m66592(g) !strcmp("m66592_udc", (g)->name)
106 #else
107 #define gadget_is_m66592(g) 0
108 #endif
109
110 /* Freescale CPM/QE UDC SUPPORT */
111 #ifdef CONFIG_USB_GADGET_FSL_QE
112 #define gadget_is_fsl_qe(g) !strcmp("fsl_qe_udc", (g)->name)
113 #else
114 #define gadget_is_fsl_qe(g) 0
115 #endif
116
117 #ifdef CONFIG_USB_GADGET_CI13XXX_PCI
118 #define gadget_is_ci13xxx_pci(g) (!strcmp("ci13xxx_pci", (g)->name))
119 #else
120 #define gadget_is_ci13xxx_pci(g) 0
121 #endif
122
123 // CONFIG_USB_GADGET_SX2
124 // CONFIG_USB_GADGET_AU1X00
125 // ...
126
127 #ifdef CONFIG_USB_GADGET_R8A66597
128 #define gadget_is_r8a66597(g) !strcmp("r8a66597_udc", (g)->name)
129 #else
130 #define gadget_is_r8a66597(g) 0
131 #endif
132
133 #ifdef CONFIG_USB_S3C_HSOTG
134 #define gadget_is_s3c_hsotg(g) (!strcmp("s3c-hsotg", (g)->name))
135 #else
136 #define gadget_is_s3c_hsotg(g) 0
137 #endif
138
139 #ifdef CONFIG_USB_GADGET_EG20T
140 #define gadget_is_pch(g) (!strcmp("pch_udc", (g)->name))
141 #else
142 #define gadget_is_pch(g) 0
143 #endif
144
145 #ifdef CONFIG_USB_GADGET_CI13XXX_MSM
146 #define gadget_is_ci13xxx_msm(g) (!strcmp("ci13xxx_msm", (g)->name))
147 #else
148 #define gadget_is_ci13xxx_msm(g) 0
149 #endif
150
151 /**
152 * usb_gadget_controller_number - support bcdDevice id convention
153 * @gadget: the controller being driven
154 *
155 * Return a 2-digit BCD value associated with the peripheral controller,
156 * suitable for use as part of a bcdDevice value, or a negative error code.
157 *
158 * NOTE: this convention is purely optional, and has no meaning in terms of
159 * any USB specification. If you want to use a different convention in your
160 * gadget driver firmware -- maybe a more formal revision ID -- feel free.
161 *
162 * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
163 * to change their behavior accordingly. For example it might help avoiding
164 * some chip bug.
165 */
usb_gadget_controller_number(struct usb_gadget * gadget)166 static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
167 {
168 if (gadget_is_net2280(gadget))
169 return 0x01;
170 else if (gadget_is_dummy(gadget))
171 return 0x02;
172 else if (gadget_is_pxa(gadget))
173 return 0x03;
174 else if (gadget_is_goku(gadget))
175 return 0x06;
176 else if (gadget_is_omap(gadget))
177 return 0x08;
178 else if (gadget_is_pxa27x(gadget))
179 return 0x11;
180 else if (gadget_is_s3c2410(gadget))
181 return 0x12;
182 else if (gadget_is_at91(gadget))
183 return 0x13;
184 else if (gadget_is_imx(gadget))
185 return 0x14;
186 else if (gadget_is_musbhdrc(gadget))
187 return 0x16;
188 else if (gadget_is_atmel_usba(gadget))
189 return 0x18;
190 else if (gadget_is_fsl_usb2(gadget))
191 return 0x19;
192 else if (gadget_is_amd5536udc(gadget))
193 return 0x20;
194 else if (gadget_is_m66592(gadget))
195 return 0x21;
196 else if (gadget_is_fsl_qe(gadget))
197 return 0x22;
198 else if (gadget_is_ci13xxx_pci(gadget))
199 return 0x23;
200 else if (gadget_is_langwell(gadget))
201 return 0x24;
202 else if (gadget_is_r8a66597(gadget))
203 return 0x25;
204 else if (gadget_is_s3c_hsotg(gadget))
205 return 0x26;
206 else if (gadget_is_pch(gadget))
207 return 0x27;
208 else if (gadget_is_ci13xxx_msm(gadget))
209 return 0x28;
210 return -ENOENT;
211 }
212
213
214 /**
215 * gadget_supports_altsettings - return true if altsettings work
216 * @gadget: the gadget in question
217 */
gadget_supports_altsettings(struct usb_gadget * gadget)218 static inline bool gadget_supports_altsettings(struct usb_gadget *gadget)
219 {
220 /* PXA 21x/25x/26x has no altsettings at all */
221 if (gadget_is_pxa(gadget))
222 return false;
223
224 /* PXA 27x and 3xx have *broken* altsetting support */
225 if (gadget_is_pxa27x(gadget))
226 return false;
227
228 /* Everything else is *presumably* fine ... */
229 return true;
230 }
231
232 #endif /* __GADGET_CHIPS_H */
233