pxa2xx_udc.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * This supports machine-specific differences in how the PXA2xx
 4 * USB Device Controller (UDC) is wired.
 5 *
 6 * It is set in linux/arch/arm/mach-pxa/<machine>.c or in
 7 * linux/arch/mach-ixp4xx/<machine>.c and used in
 8 * the probe routine of linux/drivers/usb/gadget/pxa2xx_udc.c
 9 */
10#ifndef PXA2XX_UDC_H
11#define PXA2XX_UDC_H
12
13struct pxa2xx_udc_mach_info {
14        int  (*udc_is_connected)(void);		/* do we see host? */
15        void (*udc_command)(int cmd);
16#define	PXA2XX_UDC_CMD_CONNECT		0	/* let host see us */
17#define	PXA2XX_UDC_CMD_DISCONNECT	1	/* so host won't see us */
18
19	/* Boards following the design guidelines in the developer's manual,
20	 * with on-chip GPIOs not Lubbock's weird hardware, can have a sane
21	 * VBUS IRQ and omit the methods above.  Store the GPIO number
22	 * here.  Note that sometimes the signals go through inverters...
23	 */
24	bool	gpio_pullup_inverted;
25	int	gpio_pullup;			/* high == pullup activated */
26};
27
28#ifdef CONFIG_PXA27x
29extern void pxa27x_clear_otgph(void);
30#else
31#define pxa27x_clear_otgph()	do {} while (0)
32#endif
33
34#endif