/drivers/usb/gadget/gadget_chips.h
C Header | 249 lines | 176 code | 32 blank | 41 comment | 47 complexity | 7b5e8f2cff0bb5a7b9d17c9eb4e29911 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
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_S3C_HSUDC
140#define gadget_is_s3c_hsudc(g) (!strcmp("s3c-hsudc", (g)->name))
141#else
142#define gadget_is_s3c_hsudc(g) 0
143#endif
144
145#ifdef CONFIG_USB_GADGET_EG20T
146#define gadget_is_pch(g) (!strcmp("pch_udc", (g)->name))
147#else
148#define gadget_is_pch(g) 0
149#endif
150
151#ifdef CONFIG_USB_GADGET_CI13XXX_MSM
152#define gadget_is_ci13xxx_msm(g) (!strcmp("ci13xxx_msm", (g)->name))
153#else
154#define gadget_is_ci13xxx_msm(g) 0
155#endif
156
157#ifdef CONFIG_USB_GADGET_RENESAS_USBHS
158#define gadget_is_renesas_usbhs(g) (!strcmp("renesas_usbhs_udc", (g)->name))
159#else
160#define gadget_is_renesas_usbhs(g) 0
161#endif
162
163/**
164 * usb_gadget_controller_number - support bcdDevice id convention
165 * @gadget: the controller being driven
166 *
167 * Return a 2-digit BCD value associated with the peripheral controller,
168 * suitable for use as part of a bcdDevice value, or a negative error code.
169 *
170 * NOTE: this convention is purely optional, and has no meaning in terms of
171 * any USB specification. If you want to use a different convention in your
172 * gadget driver firmware -- maybe a more formal revision ID -- feel free.
173 *
174 * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
175 * to change their behavior accordingly. For example it might help avoiding
176 * some chip bug.
177 */
178static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
179{
180 if (gadget_is_net2280(gadget))
181 return 0x01;
182 else if (gadget_is_dummy(gadget))
183 return 0x02;
184 else if (gadget_is_pxa(gadget))
185 return 0x03;
186 else if (gadget_is_goku(gadget))
187 return 0x06;
188 else if (gadget_is_omap(gadget))
189 return 0x08;
190 else if (gadget_is_pxa27x(gadget))
191 return 0x11;
192 else if (gadget_is_s3c2410(gadget))
193 return 0x12;
194 else if (gadget_is_at91(gadget))
195 return 0x13;
196 else if (gadget_is_imx(gadget))
197 return 0x14;
198 else if (gadget_is_musbhdrc(gadget))
199 return 0x16;
200 else if (gadget_is_atmel_usba(gadget))
201 return 0x18;
202 else if (gadget_is_fsl_usb2(gadget))
203 return 0x19;
204 else if (gadget_is_amd5536udc(gadget))
205 return 0x20;
206 else if (gadget_is_m66592(gadget))
207 return 0x21;
208 else if (gadget_is_fsl_qe(gadget))
209 return 0x22;
210 else if (gadget_is_ci13xxx_pci(gadget))
211 return 0x23;
212 else if (gadget_is_langwell(gadget))
213 return 0x24;
214 else if (gadget_is_r8a66597(gadget))
215 return 0x25;
216 else if (gadget_is_s3c_hsotg(gadget))
217 return 0x26;
218 else if (gadget_is_pch(gadget))
219 return 0x27;
220 else if (gadget_is_ci13xxx_msm(gadget))
221 return 0x28;
222 else if (gadget_is_renesas_usbhs(gadget))
223 return 0x29;
224 else if (gadget_is_s3c_hsudc(gadget))
225 return 0x30;
226
227 return -ENOENT;
228}
229
230
231/**
232 * gadget_supports_altsettings - return true if altsettings work
233 * @gadget: the gadget in question
234 */
235static inline bool gadget_supports_altsettings(struct usb_gadget *gadget)
236{
237 /* PXA 21x/25x/26x has no altsettings at all */
238 if (gadget_is_pxa(gadget))
239 return false;
240
241 /* PXA 27x and 3xx have *broken* altsetting support */
242 if (gadget_is_pxa27x(gadget))
243 return false;
244
245 /* Everything else is *presumably* fine ... */
246 return true;
247}
248
249#endif /* __GADGET_CHIPS_H */