xref: /linux-6.15/include/linux/usb/ehci_pdriver.h (revision a671de08)
1 /*
2  * Copyright (C) 2012 Hauke Mehrtens <[email protected]>
3  *
4  * This program is free software; you can redistribute it and/or modify it
5  * under the terms of the GNU General Public License as published by the
6  * Free Software Foundation; either version 2 of the License, or (at your
7  * option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful, but
10  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
11  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software Foundation,
16  * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17  */
18 
19 #ifndef __USB_CORE_EHCI_PDRIVER_H
20 #define __USB_CORE_EHCI_PDRIVER_H
21 
22 /**
23  * struct usb_ehci_pdata - platform_data for generic ehci driver
24  *
25  * @caps_offset:	offset of the EHCI Capability Registers to the start of
26  *			the io memory region provided to the driver.
27  * @has_tt:		set to 1 if TT is integrated in root hub.
28  * @port_power_on:	set to 1 if the controller needs a power up after
29  *			initialization.
30  * @port_power_off:	set to 1 if the controller needs to be powered down
31  *			after initialization.
32  * @no_io_watchdog:	set to 1 if the controller does not need the I/O
33  *			watchdog to run.
34  *
35  * These are general configuration options for the EHCI controller. All of
36  * these options are activating more or less workarounds for some hardware.
37  */
38 struct usb_ehci_pdata {
39 	int		caps_offset;
40 	unsigned	has_tt:1;
41 	unsigned	has_synopsys_hc_bug:1;
42 	unsigned	big_endian_desc:1;
43 	unsigned	big_endian_mmio:1;
44 	unsigned	no_io_watchdog:1;
45 
46 	/* Turn on all power and clocks */
47 	int (*power_on)(struct platform_device *pdev);
48 	/* Turn off all power and clocks */
49 	void (*power_off)(struct platform_device *pdev);
50 	/* Turn on only VBUS suspend power and hotplug detection,
51 	 * turn off everything else */
52 	void (*power_suspend)(struct platform_device *pdev);
53 };
54 
55 #endif /* __USB_CORE_EHCI_PDRIVER_H */
56