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_GADGET_EG20T
 140 #define gadget_is_pch(g)        (!strcmp("pch_udc", (g)->name))
 141 #else
 142 #define gadget_is_pch(g)        0
 143 #endif
 144
 145 #ifdef CONFIG_USB_GADGET_CI13XXX_MSM
 146 #define gadget_is_ci13xxx_msm(g)        (!strcmp("ci13xxx_msm", (g)->name))
 147 #else
 148 #define gadget_is_ci13xxx_msm(g)        0
 149 #endif
 150
 151 /**
 152  * usb_gadget_controller_number - support bcdDevice id convention
 153  * @gadget: the controller being driven
 154  *
 155  * Return a 2-digit BCD value associated with the peripheral controller,
 156  * suitable for use as part of a bcdDevice value, or a negative error code.
 157  *
 158  * NOTE:  this convention is purely optional, and has no meaning in terms of
 159  * any USB specification.  If you want to use a different convention in your
 160  * gadget driver firmware -- maybe a more formal revision ID -- feel free.
 161  *
 162  * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
 163  * to change their behavior accordingly.  For example it might help avoiding
 164  * some chip bug.
 165  */
 166 static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
 167 {
 168         if (gadget_is_net2280(gadget))
 169                 return 0x01;
 170         else if (gadget_is_dummy(gadget))
 171                 return 0x02;
 172         else if (gadget_is_pxa(gadget))
 173                 return 0x03;
 174         else if (gadget_is_goku(gadget))
 175                 return 0x06;
 176         else if (gadget_is_omap(gadget))
 177                 return 0x08;
 178         else if (gadget_is_pxa27x(gadget))
 179                 return 0x11;
 180         else if (gadget_is_s3c2410(gadget))
 181                 return 0x12;
 182         else if (gadget_is_at91(gadget))
 183                 return 0x13;
 184         else if (gadget_is_imx(gadget))
 185                 return 0x14;
 186         else if (gadget_is_musbhdrc(gadget))
 187                 return 0x16;
 188         else if (gadget_is_atmel_usba(gadget))
 189                 return 0x18;
 190         else if (gadget_is_fsl_usb2(gadget))
 191                 return 0x19;
 192         else if (gadget_is_amd5536udc(gadget))
 193                 return 0x20;
 194         else if (gadget_is_m66592(gadget))
 195                 return 0x21;
 196         else if (gadget_is_fsl_qe(gadget))
 197                 return 0x22;
 198         else if (gadget_is_ci13xxx_pci(gadget))
 199                 return 0x23;
 200         else if (gadget_is_langwell(gadget))
 201                 return 0x24;
 202         else if (gadget_is_r8a66597(gadget))
 203                 return 0x25;
 204         else if (gadget_is_s3c_hsotg(gadget))
 205                 return 0x26;
 206         else if (gadget_is_pch(gadget))
 207                 return 0x27;
 208         else if (gadget_is_ci13xxx_msm(gadget))
 209                 return 0x28;
 210         return -ENOENT;
 211 }
 212
 213
 214 /**
 215  * gadget_supports_altsettings - return true if altsettings work
 216  * @gadget: the gadget in question
 217  */
 218 static inline bool gadget_supports_altsettings(struct usb_gadget *gadget)
 219 {
 220         /* PXA 21x/25x/26x has no altsettings at all */
 221         if (gadget_is_pxa(gadget))
 222                 return false;
 223
 224         /* PXA 27x and 3xx have *broken* altsetting support */
 225         if (gadget_is_pxa27x(gadget))
 226                 return false;
 227
 228         /* Everything else is *presumably* fine ... */
 229         return true;
 230 }
 231
 232 #endif /* __GADGET_CHIPS_H */