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Diffstat (limited to 'arch/arm/include/asm/mach/udc_pxa2xx.h')
-rw-r--r--arch/arm/include/asm/mach/udc_pxa2xx.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mach/udc_pxa2xx.h b/arch/arm/include/asm/mach/udc_pxa2xx.h
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+++ b/arch/arm/include/asm/mach/udc_pxa2xx.h
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+/*
+ * arch/arm/include/asm/mach/udc_pxa2xx.h
+ *
+ * This supports machine-specific differences in how the PXA2xx
+ * USB Device Controller (UDC) is wired.
+ *
+ * It is set in linux/arch/arm/mach-pxa/<machine>.c or in
+ * linux/arch/mach-ixp4xx/<machine>.c and used in
+ * the probe routine of linux/drivers/usb/gadget/pxa2xx_udc.c
+ */
+
+struct pxa2xx_udc_mach_info {
+ int (*udc_is_connected)(void); /* do we see host? */
+ void (*udc_command)(int cmd);
+#define PXA2XX_UDC_CMD_CONNECT 0 /* let host see us */
+#define PXA2XX_UDC_CMD_DISCONNECT 1 /* so host won't see us */
+
+ /* Boards following the design guidelines in the developer's manual,
+ * with on-chip GPIOs not Lubbock's weird hardware, can have a sane
+ * VBUS IRQ and omit the methods above. Store the GPIO number
+ * here; for GPIO 0, also mask in one of the pxa_gpio_mode() bits.
+ * Note that sometimes the signals go through inverters...
+ */
+ bool gpio_vbus_inverted;
+ u16 gpio_vbus; /* high == vbus present */
+ bool gpio_pullup_inverted;
+ u16 gpio_pullup; /* high == pullup activated */
+};
+