include/linux/usb/ehci_pdriver.h

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
   4  */
   5
   6 #ifndef __USB_CORE_EHCI_PDRIVER_H
   7 #define __USB_CORE_EHCI_PDRIVER_H
   8
   9 struct platform_device;
  10 struct usb_hcd;
  11
  12 /**
  13  * struct usb_ehci_pdata - platform_data for generic ehci driver
  14  *
  15  * @caps_offset:        offset of the EHCI Capability Registers to the start of
  16  *                      the io memory region provided to the driver.
  17  * @has_tt:             set to 1 if TT is integrated in root hub.
  18  * @port_power_on:      set to 1 if the controller needs a power up after
  19  *                      initialization.
  20  * @port_power_off:     set to 1 if the controller needs to be powered down
  21  *                      after initialization.
  22  * @no_io_watchdog:     set to 1 if the controller does not need the I/O
  23  *                      watchdog to run.
  24  * @reset_on_resume:    set to 1 if the controller needs to be reset after
  25  *                      a suspend / resume cycle (but can't detect that itself).
  26  *
  27  * These are general configuration options for the EHCI controller. All of
  28  * these options are activating more or less workarounds for some hardware.
  29  */
  30 struct usb_ehci_pdata {
  31         int             caps_offset;
  32         unsigned        has_tt:1;
  33         unsigned        has_synopsys_hc_bug:1;
  34         unsigned        big_endian_desc:1;
  35         unsigned        big_endian_mmio:1;
  36         unsigned        no_io_watchdog:1;
  37         unsigned        reset_on_resume:1;
  38         unsigned        dma_mask_64:1;
  39         unsigned        spurious_oc:1;
  40
  41         /* Turn on all power and clocks */
  42         int (*power_on)(struct platform_device *pdev);
  43         /* Turn off all power and clocks */
  44         void (*power_off)(struct platform_device *pdev);
  45         /* Turn on only VBUS suspend power and hotplug detection,
  46          * turn off everything else */
  47         void (*power_suspend)(struct platform_device *pdev);
  48         int (*pre_setup)(struct usb_hcd *hcd);
  49 };
  50
  51 #endif /* __USB_CORE_EHCI_PDRIVER_H */