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 could 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 the runtime comparisons in typical one-choice cases.)
   9  *
  10  * NOTE:  some of these controller drivers may not be available yet.
  11  */
  12 #ifdef CONFIG_USB_GADGET_NET2280
  13 #define gadget_is_net2280(g)    !strcmp("net2280", (g)->name)
  14 #else
  15 #define gadget_is_net2280(g)    0
  16 #endif
  17
  18 #ifdef CONFIG_USB_GADGET_DUMMY_HCD
  19 #define gadget_is_dummy(g)      !strcmp("dummy_udc", (g)->name)
  20 #else
  21 #define gadget_is_dummy(g)      0
  22 #endif
  23
  24 #ifdef CONFIG_USB_GADGET_PXA2XX
  25 #define gadget_is_pxa(g)        !strcmp("pxa2xx_udc", (g)->name)
  26 #else
  27 #define gadget_is_pxa(g)        0
  28 #endif
  29
  30 #ifdef CONFIG_USB_GADGET_GOKU
  31 #define gadget_is_goku(g)       !strcmp("goku_udc", (g)->name)
  32 #else
  33 #define gadget_is_goku(g)       0
  34 #endif
  35
  36 #ifdef CONFIG_USB_GADGET_SUPERH
  37 #define gadget_is_sh(g)         !strcmp("sh_udc", (g)->name)
  38 #else
  39 #define gadget_is_sh(g)         0
  40 #endif
  41
  42 #ifdef CONFIG_USB_GADGET_SA1100
  43 #define gadget_is_sa1100(g)     !strcmp("sa1100_udc", (g)->name)
  44 #else
  45 #define gadget_is_sa1100(g)     0
  46 #endif
  47
  48 #ifdef CONFIG_USB_GADGET_LH7A40X
  49 #define gadget_is_lh7a40x(g)    !strcmp("lh7a40x_udc", (g)->name)
  50 #else
  51 #define gadget_is_lh7a40x(g)    0
  52 #endif
  53
  54 #ifdef CONFIG_USB_GADGET_MQ11XX
  55 #define gadget_is_mq11xx(g)     !strcmp("mq11xx_udc", (g)->name)
  56 #else
  57 #define gadget_is_mq11xx(g)     0
  58 #endif
  59
  60 #ifdef CONFIG_USB_GADGET_OMAP
  61 #define gadget_is_omap(g)       !strcmp("omap_udc", (g)->name)
  62 #else
  63 #define gadget_is_omap(g)       0
  64 #endif
  65
  66 #ifdef CONFIG_USB_GADGET_N9604
  67 #define gadget_is_n9604(g)      !strcmp("n9604_udc", (g)->name)
  68 #else
  69 #define gadget_is_n9604(g)      0
  70 #endif
  71
  72 #ifdef CONFIG_USB_GADGET_PXA27X
  73 #define gadget_is_pxa27x(g)     !strcmp("pxa27x_udc", (g)->name)
  74 #else
  75 #define gadget_is_pxa27x(g)     0
  76 #endif
  77
  78 #ifdef CONFIG_USB_GADGET_S3C2410
  79 #define gadget_is_s3c2410(g)    !strcmp("s3c2410_udc", (g)->name)
  80 #else
  81 #define gadget_is_s3c2410(g)    0
  82 #endif
  83
  84 #ifdef CONFIG_USB_GADGET_AT91
  85 #define gadget_is_at91(g)       !strcmp("at91_udc", (g)->name)
  86 #else
  87 #define gadget_is_at91(g)       0
  88 #endif
  89
  90 #ifdef CONFIG_USB_GADGET_IMX
  91 #define gadget_is_imx(g)        !strcmp("imx_udc", (g)->name)
  92 #else
  93 #define gadget_is_imx(g)        0
  94 #endif
  95
  96 // CONFIG_USB_GADGET_SX2
  97 // CONFIG_USB_GADGET_AU1X00
  98 // ...
  99
 100
 101 /**
 102  * usb_gadget_controller_number - support bcdDevice id convention
 103  * @gadget: the controller being driven
 104  *
 105  * Return a 2-digit BCD value associated with the peripheral controller,
 106  * suitable for use as part of a bcdDevice value, or a negative error code.
 107  *
 108  * NOTE:  this convention is purely optional, and has no meaning in terms of
 109  * any USB specification.  If you want to use a different convention in your
 110  * gadget driver firmware -- maybe a more formal revision ID -- feel free.
 111  *
 112  * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
 113  * to change their behavior accordingly.  For example it might help avoiding
 114  * some chip bug.
 115  */
 116 static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
 117 {
 118         if (gadget_is_net2280(gadget))
 119                 return 0x01;
 120         else if (gadget_is_dummy(gadget))
 121                 return 0x02;
 122         else if (gadget_is_pxa(gadget))
 123                 return 0x03;
 124         else if (gadget_is_sh(gadget))
 125                 return 0x04;
 126         else if (gadget_is_sa1100(gadget))
 127                 return 0x05;
 128         else if (gadget_is_goku(gadget))
 129                 return 0x06;
 130         else if (gadget_is_mq11xx(gadget))
 131                 return 0x07;
 132         else if (gadget_is_omap(gadget))
 133                 return 0x08;
 134         else if (gadget_is_lh7a40x(gadget))
 135                 return 0x09;
 136         else if (gadget_is_n9604(gadget))
 137                 return 0x10;
 138         else if (gadget_is_pxa27x(gadget))
 139                 return 0x11;
 140         else if (gadget_is_s3c2410(gadget))
 141                 return 0x12;
 142         else if (gadget_is_at91(gadget))
 143                 return 0x13;
 144         else if (gadget_is_imx(gadget))
 145                 return 0x14;
 146         return -ENOENT;
 147 }