LXR linux/include/linux/usb/ehci

   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
  23struct platform_device;
  24struct 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 */
  44struct 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