arch/arm/include/asm/mach/udc_pxa2xx.h

   1 /*
   2  * arch/arm/include/asm/mach/udc_pxa2xx.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 or in
   8  * linux/arch/mach-ixp4xx/<machine>.c and used in
   9  * the probe routine of linux/drivers/usb/gadget/pxa2xx_udc.c
  10  */
  11
  12 struct pxa2xx_udc_mach_info {
  13         int  (*udc_is_connected)(void);         /* do we see host? */
  14         void (*udc_command)(int cmd);
  15 #define PXA2XX_UDC_CMD_CONNECT          0       /* let host see us */
  16 #define PXA2XX_UDC_CMD_DISCONNECT       1       /* so host won't see us */
  17
  18         /* Boards following the design guidelines in the developer's manual,
  19          * with on-chip GPIOs not Lubbock's weird hardware, can have a sane
  20          * VBUS IRQ and omit the methods above.  Store the GPIO number
  21          * here.  Note that sometimes the signals go through inverters...
  22          */
  23         bool    gpio_vbus_inverted;
  24         u16     gpio_vbus;                      /* high == vbus present */
  25         bool    gpio_pullup_inverted;
  26         u16     gpio_pullup;                    /* high == pullup activated */
  27 };
  28