/drivers/usb/gadget/gadget_chips.h

  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 */