1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software Foundation,
17 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 */
19
20 #ifndef __USB_CORE_EHCI_PDRIVER_H
21 #define __USB_CORE_EHCI_PDRIVER_H
22
23 struct platform_device;
24 struct usb_hcd;
25
26 /**
27 * struct usb_ehci_pdata - platform_data for generic ehci driver
28 *
29 * @caps_offset: offset of the EHCI Capability Registers to the start of
30 * the io memory region provided to the driver.
31 * @has_tt: set to 1 if TT is integrated in root hub.
32 * @port_power_on: set to 1 if the controller needs a power up after
33 * initialization.
34 * @port_power_off: set to 1 if the controller needs to be powered down
35 * after initialization.
36 * @no_io_watchdog: set to 1 if the controller does not need the I/O
37 * watchdog to run.
38 * @reset_on_resume: set to 1 if the controller needs to be reset after
39 * a suspend / resume cycle (but can't detect that itself).
40 *
41 * These are general configuration options for the EHCI controller. All of
42 * these options are activating more or less workarounds for some hardware.
43 */
44 struct usb_ehci_pdata {
45 int caps_offset;
46 unsigned has_tt:1;
47 unsigned has_synopsys_hc_bug:1;
48 unsigned big_endian_desc:1;
49 unsigned big_endian_mmio:1;
50 unsigned no_io_watchdog:1;
51 unsigned reset_on_resume:1;
52 unsigned dma_mask_64:1;
53
54 /* Turn on all power and clocks */
55 int (*power_on)(struct platform_device *pdev);
56 /* Turn off all power and clocks */
57 void (*power_off)(struct platform_device *pdev);
58 /* Turn on only VBUS suspend power and hotplug detection,
59 * turn off everything else */
60 void (*power_suspend)(struct platform_device *pdev);
61 int (*pre_setup)(struct usb_hcd *hcd);
62 };
63
64 #endif /* __USB_CORE_EHCI_PDRIVER_H */