blob: a8855d0b7f3bdf19fbdc76eab8a25992f07884b0 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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 *
David Brownell1c05ad42006-01-25 08:45:59 -08006 * This SHOULD eventually work like the ARM mach_is_*() stuff, driven by
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * some config file that gets updated as new hardware is supported.
David Brownell1c05ad42006-01-25 08:45:59 -08008 * (And avoiding all runtime comparisons in typical one-choice configs!)
Linus Torvalds1da177e2005-04-16 15:20:36 -07009 *
10 * NOTE: some of these controller drivers may not be available yet.
David Brownell7f9985c2007-05-08 21:01:30 -070011 * Some are available on 2.4 kernels; several are available, but not
12 * yet pushed in the 2.6 mainline tree.
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 */
Felipe Balbie67d70f2008-07-17 17:26:49 +030014
15#ifndef __GADGET_CHIPS_H
16#define __GADGET_CHIPS_H
17
Felipe Balbi199e7ed2011-06-13 18:43:59 +030018/*
19 * NOTICE: the entries below are alphabetical and should be kept
20 * that way.
21 *
22 * Always be sure to add new entries to the correct position or
23 * accept the bashing later.
24 *
25 * If you have forgotten the alphabetical order let VIM/EMACS
26 * do that for you.
27 */
28#define gadget_is_amd5536udc(g) (!strcmp("amd5536udc", (g)->name))
29#define gadget_is_at91(g) (!strcmp("at91_udc", (g)->name))
30#define gadget_is_atmel_usba(g) (!strcmp("atmel_usba_udc", (g)->name))
Pavankumar Kondeti33f82f32010-12-07 17:54:03 +053031#define gadget_is_ci13xxx_msm(g) (!strcmp("ci13xxx_msm", (g)->name))
Felipe Balbi199e7ed2011-06-13 18:43:59 +030032#define gadget_is_ci13xxx_pci(g) (!strcmp("ci13xxx_pci", (g)->name))
33#define gadget_is_dummy(g) (!strcmp("dummy_udc", (g)->name))
Felipe Balbi500fdf82011-08-19 18:10:57 +030034#define gadget_is_dwc3(g) (!strcmp("dwc3-gadget", (g)->name))
Felipe Balbi199e7ed2011-06-13 18:43:59 +030035#define gadget_is_fsl_qe(g) (!strcmp("fsl_qe_udc", (g)->name))
36#define gadget_is_fsl_usb2(g) (!strcmp("fsl-usb2-udc", (g)->name))
37#define gadget_is_goku(g) (!strcmp("goku_udc", (g)->name))
38#define gadget_is_imx(g) (!strcmp("imx_udc", (g)->name))
39#define gadget_is_langwell(g) (!strcmp("langwell_udc", (g)->name))
40#define gadget_is_m66592(g) (!strcmp("m66592_udc", (g)->name))
41#define gadget_is_musbhdrc(g) (!strcmp("musb-hdrc", (g)->name))
42#define gadget_is_net2272(g) (!strcmp("net2272", (g)->name))
43#define gadget_is_net2280(g) (!strcmp("net2280", (g)->name))
44#define gadget_is_omap(g) (!strcmp("omap_udc", (g)->name))
45#define gadget_is_pch(g) (!strcmp("pch_udc", (g)->name))
46#define gadget_is_pxa(g) (!strcmp("pxa25x_udc", (g)->name))
47#define gadget_is_pxa27x(g) (!strcmp("pxa27x_udc", (g)->name))
48#define gadget_is_r8a66597(g) (!strcmp("r8a66597_udc", (g)->name))
49#define gadget_is_renesas_usbhs(g) (!strcmp("renesas_usbhs_udc", (g)->name))
50#define gadget_is_s3c2410(g) (!strcmp("s3c2410_udc", (g)->name))
51#define gadget_is_s3c_hsotg(g) (!strcmp("s3c-hsotg", (g)->name))
52#define gadget_is_s3c_hsudc(g) (!strcmp("s3c-hsudc", (g)->name))
Kuninori Morimoto2f983822011-04-05 11:40:54 +090053
David Brownell91e79c92005-07-13 15:18:30 -070054/**
55 * usb_gadget_controller_number - support bcdDevice id convention
56 * @gadget: the controller being driven
57 *
58 * Return a 2-digit BCD value associated with the peripheral controller,
59 * suitable for use as part of a bcdDevice value, or a negative error code.
60 *
61 * NOTE: this convention is purely optional, and has no meaning in terms of
62 * any USB specification. If you want to use a different convention in your
63 * gadget driver firmware -- maybe a more formal revision ID -- feel free.
64 *
65 * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
66 * to change their behavior accordingly. For example it might help avoiding
67 * some chip bug.
68 */
69static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
70{
71 if (gadget_is_net2280(gadget))
72 return 0x01;
73 else if (gadget_is_dummy(gadget))
74 return 0x02;
75 else if (gadget_is_pxa(gadget))
76 return 0x03;
David Brownell91e79c92005-07-13 15:18:30 -070077 else if (gadget_is_goku(gadget))
78 return 0x06;
David Brownell91e79c92005-07-13 15:18:30 -070079 else if (gadget_is_omap(gadget))
80 return 0x08;
David Brownell91e79c92005-07-13 15:18:30 -070081 else if (gadget_is_pxa27x(gadget))
82 return 0x11;
83 else if (gadget_is_s3c2410(gadget))
84 return 0x12;
85 else if (gadget_is_at91(gadget))
86 return 0x13;
87 else if (gadget_is_imx(gadget))
88 return 0x14;
David Brownell1c05ad42006-01-25 08:45:59 -080089 else if (gadget_is_musbhdrc(gadget))
90 return 0x16;
Haavard Skinnemoen55b3fd42007-06-14 18:01:45 +020091 else if (gadget_is_atmel_usba(gadget))
HÃ¥vard Skinnemoen1f5b9cc2007-01-17 11:03:29 -080092 return 0x18;
Li Yangd2eef1f2007-04-23 10:37:36 -070093 else if (gadget_is_fsl_usb2(gadget))
94 return 0x19;
Thomas Dahlmann55d402d2007-07-16 21:40:54 -070095 else if (gadget_is_amd5536udc(gadget))
96 return 0x20;
Yoshihiro Shimoda4cf25032007-05-10 13:18:23 +090097 else if (gadget_is_m66592(gadget))
Yoshihiro Shimoda598f22e2007-07-17 21:01:17 +090098 return 0x21;
Li Yang3948f0e2008-09-02 19:58:10 +080099 else if (gadget_is_fsl_qe(gadget))
100 return 0x22;
Pavankumar Kondeti409a15d2010-12-07 17:53:59 +0530101 else if (gadget_is_ci13xxx_pci(gadget))
David Lopoaa69a802008-11-17 14:14:51 -0800102 return 0x23;
Xiaochen Shen5be19a92009-06-04 15:34:49 +0800103 else if (gadget_is_langwell(gadget))
104 return 0x24;
Yoshihiro Shimodac4144242009-08-19 04:59:39 +0000105 else if (gadget_is_r8a66597(gadget))
106 return 0x25;
Maurus Cuelenaere83ba11d2010-03-08 18:20:59 +0100107 else if (gadget_is_s3c_hsotg(gadget))
108 return 0x26;
Toshiharu Okadaf646cf92010-11-11 18:27:57 +0900109 else if (gadget_is_pch(gadget))
110 return 0x27;
Pavankumar Kondeti33f82f32010-12-07 17:54:03 +0530111 else if (gadget_is_ci13xxx_msm(gadget))
112 return 0x28;
Kuninori Morimoto2f983822011-04-05 11:40:54 +0900113 else if (gadget_is_renesas_usbhs(gadget))
114 return 0x29;
Thomas Abrahama9df3042011-05-07 22:28:04 +0200115 else if (gadget_is_s3c_hsudc(gadget))
116 return 0x30;
Seth Levyceb80362011-06-06 19:42:44 -0400117 else if (gadget_is_net2272(gadget))
118 return 0x31;
Felipe Balbi500fdf82011-08-19 18:10:57 +0300119 else if (gadget_is_dwc3(gadget))
120 return 0x32;
Kuninori Morimoto2f983822011-04-05 11:40:54 +0900121
David Brownell91e79c92005-07-13 15:18:30 -0700122 return -ENOENT;
123}
David Brownellda741b82008-06-19 18:19:46 -0700124
125
126/**
127 * gadget_supports_altsettings - return true if altsettings work
128 * @gadget: the gadget in question
129 */
130static inline bool gadget_supports_altsettings(struct usb_gadget *gadget)
131{
132 /* PXA 21x/25x/26x has no altsettings at all */
133 if (gadget_is_pxa(gadget))
134 return false;
135
136 /* PXA 27x and 3xx have *broken* altsetting support */
137 if (gadget_is_pxa27x(gadget))
138 return false;
139
David Brownellda741b82008-06-19 18:19:46 -0700140 /* Everything else is *presumably* fine ... */
141 return true;
142}
Felipe Balbie67d70f2008-07-17 17:26:49 +0300143
144#endif /* __GADGET_CHIPS_H */