include/linux/usb/ehci_pdriver.h

   1 /*
   2  * Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
   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 struct platform_device;
  23 struct usb_hcd;
  24
  25 /**
  26  * struct usb_ehci_pdata - platform_data for generic ehci driver
  27  *
  28  * @caps_offset:        offset of the EHCI Capability Registers to the start of
  29  *                      the io memory region provided to the driver.
  30  * @has_tt:             set to 1 if TT is integrated in root hub.
  31  * @port_power_on:      set to 1 if the controller needs a power up after
  32  *                      initialization.
  33  * @port_power_off:     set to 1 if the controller needs to be powered down
  34  *                      after initialization.
  35  * @no_io_watchdog:     set to 1 if the controller does not need the I/O
  36  *                      watchdog to run.
  37  * @reset_on_resume:    set to 1 if the controller needs to be reset after
  38  *                      a suspend / resume cycle (but can't detect that itself).
  39  *
  40  * These are general configuration options for the EHCI controller. All of
  41  * these options are activating more or less workarounds for some hardware.
  42  */
  43 struct usb_ehci_pdata {
  44         int             caps_offset;
  45         unsigned        has_tt:1;
  46         unsigned        has_synopsys_hc_bug:1;
  47         unsigned        big_endian_desc:1;
  48         unsigned        big_endian_mmio:1;
  49         unsigned        no_io_watchdog:1;
  50         unsigned        reset_on_resume:1;
  51         unsigned        dma_mask_64:1;
  52
  53         /* Turn on all power and clocks */
  54         int (*power_on)(struct platform_device *pdev);
  55         /* Turn off all power and clocks */
  56         void (*power_off)(struct platform_device *pdev);
  57         /* Turn on only VBUS suspend power and hotplug detection,
  58          * turn off everything else */
  59         void (*power_suspend)(struct platform_device *pdev);
  60         int (*pre_setup)(struct usb_hcd *hcd);
  61 };
  62
  63 #endif /* __USB_CORE_EHCI_PDRIVER_H */