release/src-rt-6.x.4708/linux/linux-2.6.36/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_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_OMAP
  55 #define gadget_is_omap(g)       !strcmp("omap_udc", (g)->name)
  56 #else
  57 #define gadget_is_omap(g)       0
  58 #endif
  59
  60 /* various unstable versions available */
  61 #ifdef CONFIG_USB_GADGET_PXA27X
  62 #define gadget_is_pxa27x(g)     !strcmp("pxa27x_udc", (g)->name)
  63 #else
  64 #define gadget_is_pxa27x(g)     0
  65 #endif
  66
  67 #ifdef CONFIG_USB_GADGET_ATMEL_USBA
  68 #define gadget_is_atmel_usba(g) !strcmp("atmel_usba_udc", (g)->name)
  69 #else
  70 #define gadget_is_atmel_usba(g) 0
  71 #endif
  72
  73 #ifdef CONFIG_USB_GADGET_S3C2410
  74 #define gadget_is_s3c2410(g)    !strcmp("s3c2410_udc", (g)->name)
  75 #else
  76 #define gadget_is_s3c2410(g)    0
  77 #endif
  78
  79 #ifdef CONFIG_USB_GADGET_AT91
  80 #define gadget_is_at91(g)       !strcmp("at91_udc", (g)->name)
  81 #else
  82 #define gadget_is_at91(g)       0
  83 #endif
  84
  85 #ifdef CONFIG_USB_GADGET_IMX
  86 #define gadget_is_imx(g)        !strcmp("imx_udc", (g)->name)
  87 #else
  88 #define gadget_is_imx(g)        0
  89 #endif
  90
  91 #ifdef CONFIG_USB_GADGET_FSL_USB2
  92 #define gadget_is_fsl_usb2(g)   !strcmp("fsl-usb2-udc", (g)->name)
  93 #else
  94 #define gadget_is_fsl_usb2(g)   0
  95 #endif
  96
  97 /* Mentor high speed "dual role" controller, in peripheral role */
  98 #ifdef CONFIG_USB_GADGET_MUSB_HDRC
  99 #define gadget_is_musbhdrc(g)   !strcmp("musb_hdrc", (g)->name)
 100 #else
 101 #define gadget_is_musbhdrc(g)   0
 102 #endif
 103
 104 #ifdef CONFIG_USB_GADGET_LANGWELL
 105 #define gadget_is_langwell(g)   (!strcmp("langwell_udc", (g)->name))
 106 #else
 107 #define gadget_is_langwell(g)   0
 108 #endif
 109
 110 #ifdef CONFIG_USB_GADGET_M66592
 111 #define gadget_is_m66592(g)     !strcmp("m66592_udc", (g)->name)
 112 #else
 113 #define gadget_is_m66592(g)     0
 114 #endif
 115
 116 /* Freescale CPM/QE UDC SUPPORT */
 117 #ifdef CONFIG_USB_GADGET_FSL_QE
 118 #define gadget_is_fsl_qe(g)     !strcmp("fsl_qe_udc", (g)->name)
 119 #else
 120 #define gadget_is_fsl_qe(g)     0
 121 #endif
 122
 123 #ifdef CONFIG_USB_GADGET_CI13XXX
 124 #define gadget_is_ci13xxx(g)    (!strcmp("ci13xxx_udc", (g)->name))
 125 #else
 126 #define gadget_is_ci13xxx(g)    0
 127 #endif
 128
 129 // CONFIG_USB_GADGET_SX2
 130 // CONFIG_USB_GADGET_AU1X00
 131 // ...
 132
 133 #ifdef CONFIG_USB_GADGET_R8A66597
 134 #define gadget_is_r8a66597(g)   !strcmp("r8a66597_udc", (g)->name)
 135 #else
 136 #define gadget_is_r8a66597(g)   0
 137 #endif
 138
 139 #ifdef CONFIG_USB_S3C_HSOTG
 140 #define gadget_is_s3c_hsotg(g)    (!strcmp("s3c-hsotg", (g)->name))
 141 #else
 142 #define gadget_is_s3c_hsotg(g)    0
 143 #endif
 144
 145
 146 /**
 147  * usb_gadget_controller_number - support bcdDevice id convention
 148  * @gadget: the controller being driven
 149  *
 150  * Return a 2-digit BCD value associated with the peripheral controller,
 151  * suitable for use as part of a bcdDevice value, or a negative error code.
 152  *
 153  * NOTE:  this convention is purely optional, and has no meaning in terms of
 154  * any USB specification.  If you want to use a different convention in your
 155  * gadget driver firmware -- maybe a more formal revision ID -- feel free.
 156  *
 157  * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
 158  * to change their behavior accordingly.  For example it might help avoiding
 159  * some chip bug.
 160  */
 161 static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
 162 {
 163         if (gadget_is_net2280(gadget))
 164                 return 0x01;
 165         else if (gadget_is_dummy(gadget))
 166                 return 0x02;
 167         else if (gadget_is_pxa(gadget))
 168                 return 0x03;
 169         else if (gadget_is_goku(gadget))
 170                 return 0x06;
 171         else if (gadget_is_omap(gadget))
 172                 return 0x08;
 173         else if (gadget_is_lh7a40x(gadget))
 174                 return 0x09;
 175         else if (gadget_is_pxa27x(gadget))
 176                 return 0x11;
 177         else if (gadget_is_s3c2410(gadget))
 178                 return 0x12;
 179         else if (gadget_is_at91(gadget))
 180                 return 0x13;
 181         else if (gadget_is_imx(gadget))
 182                 return 0x14;
 183         else if (gadget_is_musbhdrc(gadget))
 184                 return 0x16;
 185         else if (gadget_is_atmel_usba(gadget))
 186                 return 0x18;
 187         else if (gadget_is_fsl_usb2(gadget))
 188                 return 0x19;
 189         else if (gadget_is_amd5536udc(gadget))
 190                 return 0x20;
 191         else if (gadget_is_m66592(gadget))
 192                 return 0x21;
 193         else if (gadget_is_fsl_qe(gadget))
 194                 return 0x22;
 195         else if (gadget_is_ci13xxx(gadget))
 196                 return 0x23;
 197         else if (gadget_is_langwell(gadget))
 198                 return 0x24;
 199         else if (gadget_is_r8a66597(gadget))
 200                 return 0x25;
 201         else if (gadget_is_s3c_hsotg(gadget))
 202                 return 0x26;
 203         return -ENOENT;
 204 }
 205
 206
 207 /**
 208  * gadget_supports_altsettings - return true if altsettings work
 209  * @gadget: the gadget in question
 210  */
 211 static inline bool gadget_supports_altsettings(struct usb_gadget *gadget)
 212 {
 213         /* PXA 21x/25x/26x has no altsettings at all */
 214         if (gadget_is_pxa(gadget))
 215                 return false;
 216
 217         /* PXA 27x and 3xx have *broken* altsetting support */
 218         if (gadget_is_pxa27x(gadget))
 219                 return false;
 220
 221         /* Everything else is *presumably* fine ... */
 222         return true;
 223 }
 224
 225 #endif /* __GADGET_CHIPS_H */