LXR uboot/drivers/usb/gadget/gadget

   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 * Ported to U-Boot by: Thomas Smits <ts.smits@gmail.com> and
  15 *                      Remy Bohmer <linux@bohmer.net>
  16 */
  17#ifdef CONFIG_USB_GADGET_NET2280
  18#define gadget_is_net2280(g)    (!strcmp("net2280", (g)->name))
  19#else
  20#define gadget_is_net2280(g)    0
  21#endif
  22
  23#ifdef CONFIG_USB_GADGET_AMD5536UDC
  24#define gadget_is_amd5536udc(g) (!strcmp("amd5536udc", (g)->name))
  25#else
  26#define gadget_is_amd5536udc(g) 0
  27#endif
  28
  29#ifdef CONFIG_USB_GADGET_DUMMY_HCD
  30#define gadget_is_dummy(g)      (!strcmp("dummy_udc", (g)->name))
  31#else
  32#define gadget_is_dummy(g)      0
  33#endif
  34
  35#ifdef CONFIG_USB_GADGET_GOKU
  36#define gadget_is_goku(g)       (!strcmp("goku_udc", (g)->name))
  37#else
  38#define gadget_is_goku(g)       0
  39#endif
  40
  41/* SH3 UDC -- not yet ported 2.4 --> 2.6 */
  42#ifdef CONFIG_USB_GADGET_SUPERH
  43#define gadget_is_sh(g)         (!strcmp("sh_udc", (g)->name))
  44#else
  45#define gadget_is_sh(g)         0
  46#endif
  47
  48/* handhelds.org tree (?) */
  49#ifdef CONFIG_USB_GADGET_MQ11XX
  50#define gadget_is_mq11xx(g)     (!strcmp("mq11xx_udc", (g)->name))
  51#else
  52#define gadget_is_mq11xx(g)     0
  53#endif
  54
  55#ifdef CONFIG_USB_GADGET_OMAP
  56#define gadget_is_omap(g)       (!strcmp("omap_udc", (g)->name))
  57#else
  58#define gadget_is_omap(g)       0
  59#endif
  60
  61/* not yet ported 2.4 --> 2.6 */
  62#ifdef CONFIG_USB_GADGET_N9604
  63#define gadget_is_n9604(g)      (!strcmp("n9604_udc", (g)->name))
  64#else
  65#define gadget_is_n9604(g)      0
  66#endif
  67
  68#ifdef CONFIG_USB_GADGET_ATMEL_USBA
  69#define gadget_is_atmel_usba(g) (!strcmp("atmel_usba_udc", (g)->name))
  70#else
  71#define gadget_is_atmel_usba(g) 0
  72#endif
  73
  74#ifdef CONFIG_USB_GADGET_AT91
  75#define gadget_is_at91(g)       (!strcmp("at91_udc", (g)->name))
  76#else
  77#define gadget_is_at91(g)       0
  78#endif
  79
  80/* status unclear */
  81#ifdef CONFIG_USB_GADGET_IMX
  82#define gadget_is_imx(g)        (!strcmp("imx_udc", (g)->name))
  83#else
  84#define gadget_is_imx(g)        0
  85#endif
  86
  87#ifdef CONFIG_USB_GADGET_FSL_USB2
  88#define gadget_is_fsl_usb2(g)   (!strcmp("fsl-usb2-udc", (g)->name))
  89#else
  90#define gadget_is_fsl_usb2(g)   0
  91#endif
  92
  93/* Mentor high speed function controller */
  94/* from Montavista kernel (?) */
  95#ifdef CONFIG_USB_GADGET_MUSBHSFC
  96#define gadget_is_musbhsfc(g)   (!strcmp("musbhsfc_udc", (g)->name))
  97#else
  98#define gadget_is_musbhsfc(g)   0
  99#endif
 100
 101/* Mentor high speed "dual role" controller, in peripheral role */
 102#ifdef CONFIG_USB_MUSB_GADGET
 103#define gadget_is_musbhdrc(g)   (!strcmp("musb-hdrc", (g)->name))
 104#else
 105#define gadget_is_musbhdrc(g)   0
 106#endif
 107
 108#ifdef CONFIG_USB_GADGET_M66592
 109#define gadget_is_m66592(g)     (!strcmp("m66592_udc", (g)->name))
 110#else
 111#define gadget_is_m66592(g)     0
 112#endif
 113
 114#ifdef CONFIG_CI_UDC
 115#define gadget_is_ci(g)        (!strcmp("ci_udc", (g)->name))
 116#else
 117#define gadget_is_ci(g)        0
 118#endif
 119
 120#ifdef CONFIG_USB_DWC3_GADGET
 121#define gadget_is_dwc3(g)        (!strcmp("dwc3-gadget", (g)->name))
 122#else
 123#define gadget_is_dwc3(g)        0
 124#endif
 125
 126#ifdef CONFIG_USB_CDNS3_GADGET
 127#define gadget_is_cdns3(g)        (!strcmp("cdns3-gadget", (g)->name))
 128#else
 129#define gadget_is_cdns3(g)        0
 130#endif
 131
 132#ifdef CONFIG_USB_GADGET_MAX3420
 133#define gadget_is_max3420(g)        (!strcmp("max3420-udc", (g)->name))
 134#else
 135#define gadget_is_max3420(g)        0
 136#endif
 137
 138#ifdef CONFIG_USB_MTU3_GADGET
 139#define gadget_is_mtu3(g)        (!strcmp("mtu3-gadget", (g)->name))
 140#else
 141#define gadget_is_mtu3(g)        0
 142#endif
 143
 144#ifdef CONFIG_USB_GADGET_DWC2_OTG
 145#define gadget_is_dwc2(g)        (!strcmp("dwc2-udc", (g)->name))
 146#else
 147#define gadget_is_dwc2(g)        0
 148#endif
 149
 150/**
 151 * usb_gadget_controller_number - support bcdDevice id convention
 152 * @gadget: the controller being driven
 153 *
 154 * Return a 2-digit BCD value associated with the peripheral controller,
 155 * suitable for use as part of a bcdDevice value, or a negative error code.
 156 *
 157 * NOTE:  this convention is purely optional, and has no meaning in terms of
 158 * any USB specification.  If you want to use a different convention in your
 159 * gadget driver firmware -- maybe a more formal revision ID -- feel free.
 160 *
 161 * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
 162 * to change their behavior accordingly.  For example it might help avoiding
 163 * some chip bug.
 164 */
 165static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
 166{
 167        if (gadget_is_net2280(gadget))
 168                return 0x01;
 169        else if (gadget_is_dummy(gadget))
 170                return 0x02;
 171        else if (gadget_is_sh(gadget))
 172                return 0x04;
 173        else if (gadget_is_goku(gadget))
 174                return 0x06;
 175        else if (gadget_is_mq11xx(gadget))
 176                return 0x07;
 177        else if (gadget_is_omap(gadget))
 178                return 0x08;
 179        else if (gadget_is_n9604(gadget))
 180                return 0x09;
 181        else if (gadget_is_at91(gadget))
 182                return 0x12;
 183        else if (gadget_is_imx(gadget))
 184                return 0x13;
 185        else if (gadget_is_musbhsfc(gadget))
 186                return 0x14;
 187        else if (gadget_is_musbhdrc(gadget))
 188                return 0x15;
 189        else if (gadget_is_atmel_usba(gadget))
 190                return 0x17;
 191        else if (gadget_is_fsl_usb2(gadget))
 192                return 0x18;
 193        else if (gadget_is_amd5536udc(gadget))
 194                return 0x19;
 195        else if (gadget_is_m66592(gadget))
 196                return 0x20;
 197        else if (gadget_is_ci(gadget))
 198                return 0x21;
 199        else if (gadget_is_dwc3(gadget))
 200                return 0x23;
 201        else if (gadget_is_cdns3(gadget))
 202                return 0x24;
 203        else if (gadget_is_max3420(gadget))
 204                return 0x25;
 205        else if (gadget_is_mtu3(gadget))
 206                return 0x26;
 207        else if (gadget_is_dwc2(gadget))
 208                return 0x27;
 209        return -ENOENT;
 210}
 211