linux/drivers/extcon/extcon.h
Linus Torvalds 894025f24b USB/PHY patches for 4.15-rc1
Here is the big set of USB and PHY driver updates for 4.15-rc1.
 
 There is the usual amount of gadget and xhci driver updates, along with
 phy and chipidea enhancements.  There's also a lot of SPDX tags and
 license boilerplate cleanups as well, which provide some churn in the
 diffstat.
 
 Other major thing is the typec code that moved out of staging and into
 the "real" part of the drivers/usb/ tree, which was nice to see happen.
 
 All of these have been in linux-next with no reported issues for a
 while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY updates from Greg KH:
 "Here is the big set of USB and PHY driver updates for 4.15-rc1.

  There is the usual amount of gadget and xhci driver updates, along
  with phy and chipidea enhancements. There's also a lot of SPDX tags
  and license boilerplate cleanups as well, which provide some churn in
  the diffstat.

  Other major thing is the typec code that moved out of staging and into
  the "real" part of the drivers/usb/ tree, which was nice to see
  happen.

  All of these have been in linux-next with no reported issues for a
  while"

* tag 'usb-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (263 commits)
  usb: gadget: f_fs: Fix use-after-free in ffs_free_inst
  USB: usbfs: compute urb->actual_length for isochronous
  usb: core: message: remember to reset 'ret' to 0 when necessary
  USB: typec: Remove remaining redundant license text
  USB: typec: add SPDX identifiers to some files
  USB: renesas_usbhs: rcar?.h: add SPDX tags
  USB: chipidea: ci_hdrc_tegra.c: add SPDX line
  USB: host: xhci-debugfs: add SPDX lines
  USB: add SPDX identifiers to all remaining Makefiles
  usb: host: isp1362-hcd: remove a couple of redundant assignments
  USB: adutux: remove redundant variable minor
  usb: core: add a new usb_get_ptm_status() helper
  usb: core: add a 'type' parameter to usb_get_status()
  usb: core: introduce a new usb_get_std_status() helper
  usb: core: rename usb_get_status() 'type' argument to 'recip'
  usb: core: add Status Type definitions
  USB: gadget: Remove redundant license text
  USB: gadget: function: Remove redundant license text
  USB: gadget: udc: Remove redundant license text
  USB: gadget: legacy: Remove redundant license text
  ...
2017-11-13 21:14:07 -08:00

67 lines
2.5 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_EXTCON_INTERNAL_H__
#define __LINUX_EXTCON_INTERNAL_H__
#include <linux/extcon-provider.h>
/**
* struct extcon_dev - An extcon device represents one external connector.
* @name: The name of this extcon device. Parent device name is
* used if NULL.
* @supported_cable: Array of supported cable names ending with EXTCON_NONE.
* If supported_cable is NULL, cable name related APIs
* are disabled.
* @mutually_exclusive: Array of mutually exclusive set of cables that cannot
* be attached simultaneously. The array should be
* ending with NULL or be NULL (no mutually exclusive
* cables). For example, if it is { 0x7, 0x30, 0}, then,
* {0, 1}, {0, 1, 2}, {0, 2}, {1, 2}, or {4, 5} cannot
* be attached simulataneously. {0x7, 0} is equivalent to
* {0x3, 0x6, 0x5, 0}. If it is {0xFFFFFFFF, 0}, there
* can be no simultaneous connections.
* @dev: Device of this extcon.
* @state: Attach/detach state of this extcon. Do not provide at
* register-time.
* @nh_all: Notifier for the state change events for all supported
* external connectors from this extcon.
* @nh: Notifier for the state change events from this extcon
* @entry: To support list of extcon devices so that users can
* search for extcon devices based on the extcon name.
* @lock:
* @max_supported: Internal value to store the number of cables.
* @extcon_dev_type: Device_type struct to provide attribute_groups
* customized for each extcon device.
* @cables: Sysfs subdirectories. Each represents one cable.
*
* In most cases, users only need to provide "User initializing data" of
* this struct when registering an extcon. In some exceptional cases,
* optional callbacks may be needed. However, the values in "internal data"
* are overwritten by register function.
*/
struct extcon_dev {
/* Optional user initializing data */
const char *name;
const unsigned int *supported_cable;
const u32 *mutually_exclusive;
/* Internal data. Please do not set. */
struct device dev;
struct raw_notifier_head nh_all;
struct raw_notifier_head *nh;
struct list_head entry;
int max_supported;
spinlock_t lock; /* could be called by irq handler */
u32 state;
/* /sys/class/extcon/.../cable.n/... */
struct device_type extcon_dev_type;
struct extcon_cable *cables;
/* /sys/class/extcon/.../mutually_exclusive/... */
struct attribute_group attr_g_muex;
struct attribute **attrs_muex;
struct device_attribute *d_attrs_muex;
};
#endif /* __LINUX_EXTCON_INTERNAL_H__ */