Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / drivers / usb / gadget / gadget_chips.h

diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h
index ea2eb52..aa80f09 100644 (file)
--- a/drivers/usb/gadget/gadget_chips.h
+++ b/drivers/usb/gadget/gadget_chips.h
@@ -3,8 +3,9 @@
  * gadget drivers or other code that needs to deal with them, and which
  * autoconfigures instead of using early binding to the hardware.
  *
- * This could eventually work like the ARM mach_is_*() stuff, driven by
+ * This SHOULD eventually work like the ARM mach_is_*() stuff, driven by
  * some config file that gets updated as new hardware is supported.
+ * (And avoiding all runtime comparisons in typical one-choice configs!)
  *
  * NOTE:  some of these controller drivers may not be available yet.
  */
@@ -86,7 +87,87 @@
 #define gadget_is_at91(g)      0
 #endif
 
+#ifdef CONFIG_USB_GADGET_IMX
+#define gadget_is_imx(g)       !strcmp("imx_udc", (g)->name)
+#else
+#define gadget_is_imx(g)       0
+#endif
+
+/* Mentor high speed function controller */
+#ifdef CONFIG_USB_GADGET_MUSBHSFC
+#define gadget_is_musbhsfc(g)  !strcmp("musbhsfc_udc", (g)->name)
+#else
+#define gadget_is_musbhsfc(g)  0
+#endif
+
+/* Mentor high speed "dual role" controller, in peripheral role */
+#ifdef CONFIG_USB_GADGET_MUSB_HDRC
+#define gadget_is_musbhdrc(g)  !strcmp("musb_hdrc", (g)->name)
+#else
+#define gadget_is_musbhdrc(g)  0
+#endif
+
+#ifdef CONFIG_USB_GADGET_MPC8272
+#define gadget_is_mpc8272(g)   !strcmp("mpc8272_udc", (g)->name)
+#else
+#define gadget_is_mpc8272(g)   0
+#endif
+
 // CONFIG_USB_GADGET_SX2
 // CONFIG_USB_GADGET_AU1X00
 // ...
 
+
+/**
+ * usb_gadget_controller_number - support bcdDevice id convention
+ * @gadget: the controller being driven
+ *
+ * Return a 2-digit BCD value associated with the peripheral controller,
+ * suitable for use as part of a bcdDevice value, or a negative error code.
+ *
+ * NOTE:  this convention is purely optional, and has no meaning in terms of
+ * any USB specification.  If you want to use a different convention in your
+ * gadget driver firmware -- maybe a more formal revision ID -- feel free.
+ *
+ * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
+ * to change their behavior accordingly.  For example it might help avoiding
+ * some chip bug.
+ */
+static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
+{
+       if (gadget_is_net2280(gadget))
+               return 0x01;
+       else if (gadget_is_dummy(gadget))
+               return 0x02;
+       else if (gadget_is_pxa(gadget))
+               return 0x03;
+       else if (gadget_is_sh(gadget))
+               return 0x04;
+       else if (gadget_is_sa1100(gadget))
+               return 0x05;
+       else if (gadget_is_goku(gadget))
+               return 0x06;
+       else if (gadget_is_mq11xx(gadget))
+               return 0x07;
+       else if (gadget_is_omap(gadget))
+               return 0x08;
+       else if (gadget_is_lh7a40x(gadget))
+               return 0x09;
+       else if (gadget_is_n9604(gadget))
+               return 0x10;
+       else if (gadget_is_pxa27x(gadget))
+               return 0x11;
+       else if (gadget_is_s3c2410(gadget))
+               return 0x12;
+       else if (gadget_is_at91(gadget))
+               return 0x13;
+       else if (gadget_is_imx(gadget))
+               return 0x14;
+       else if (gadget_is_musbhsfc(gadget))
+               return 0x15;
+       else if (gadget_is_musbhdrc(gadget))
+               return 0x16;
+       else if (gadget_is_mpc8272(gadget))
+               return 0x17;
+       return -ENOENT;
+}