include/asm-arm/arch-pxa/udc.h

   1 /*
   2  * linux/include/asm-arm/arch-pxa/udc.h
   3  *
   4  * This supports machine-specific differences in how the PXA2xx
   5  * USB Device Controller (UDC) is wired.
   6  *
   7  * It is set in linux/arch/arm/mach-pxa/<machine>.c and used in
   8  * the probe routine of linux/drivers/usb/gadget/pxa2xx_udc.c
   9  */
  10 struct pxa2xx_udc_mach_info {
  11         int  (*udc_is_connected)(void);         /* do we see host? */
  12         void (*udc_command)(int cmd);
  13 #define PXA2XX_UDC_CMD_CONNECT          0       /* let host see us */
  14 #define PXA2XX_UDC_CMD_DISCONNECT       1       /* so host won't see us */
  15
  16         /* Boards following the design guidelines in the developer's manual,
  17          * with on-chip GPIOs not Lubbock's wierd hardware, can have a sane
  18          * VBUS IRQ and omit the methods above.  Store the GPIO number
  19          * here; for GPIO 0, also mask in one of the pxa_gpio_mode() bits.
  20          */
  21         u16     gpio_vbus;                      /* high == vbus present */
  22         u16     gpio_pullup;                    /* high == pullup activated */
  23 };
  24
  25 extern void pxa_set_udc_info(struct pxa2xx_udc_mach_info *info);
  26