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 */ 65