ehci_pdriver.h

 1// SPDX-License-Identifier: GPL-2.0+
 2/*
 3 * Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
 4 */
 5
 6#ifndef __USB_CORE_EHCI_PDRIVER_H
 7#define __USB_CORE_EHCI_PDRIVER_H
 8
 9struct platform_device;
10struct usb_hcd;
11
12/**
13 * struct usb_ehci_pdata - platform_data for generic ehci driver
14 *
15 * @caps_offset:	offset of the EHCI Capability Registers to the start of
16 *			the io memory region provided to the driver.
17 * @has_tt:		set to 1 if TT is integrated in root hub.
18 * @port_power_on:	set to 1 if the controller needs a power up after
19 *			initialization.
20 * @port_power_off:	set to 1 if the controller needs to be powered down
21 *			after initialization.
22 * @no_io_watchdog:	set to 1 if the controller does not need the I/O
23 *			watchdog to run.
24 * @reset_on_resume:	set to 1 if the controller needs to be reset after
25 * 			a suspend / resume cycle (but can't detect that itself).
26 *
27 * These are general configuration options for the EHCI controller. All of
28 * these options are activating more or less workarounds for some hardware.
29 */
30struct usb_ehci_pdata {
31	int		caps_offset;
32	unsigned	has_tt:1;
33	unsigned	has_synopsys_hc_bug:1;
34	unsigned	big_endian_desc:1;
35	unsigned	big_endian_mmio:1;
36	unsigned	no_io_watchdog:1;
37	unsigned	reset_on_resume:1;
38	unsigned	dma_mask_64:1;
39	unsigned	spurious_oc:1;
40
41	/* Turn on all power and clocks */
42	int (*power_on)(struct platform_device *pdev);
43	/* Turn off all power and clocks */
44	void (*power_off)(struct platform_device *pdev);
45	/* Turn on only VBUS suspend power and hotplug detection,
46	 * turn off everything else */
47	void (*power_suspend)(struct platform_device *pdev);
48	int (*pre_setup)(struct usb_hcd *hcd);
49};
50
51#endif /* __USB_CORE_EHCI_PDRIVER_H */