Revision f5d9e56c58052a4f206f6da7df1b61e52bef5a77 authored by Jerome Brunet on 13 November 2017, 11:09:40 UTC, committed by OpenEmbedded on 19 December 2019, 12:26:43 UTC
Turn on CONFIG_CEC_SUPPORT and CONFIG_CEC_PLATFORM_DRIVERS Turn on CONFIG_VIDEO_MESON_AO_CEC as module Turn on CONFIG_DRM_DW_HDMI_CEC as module Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> %% original patch: 0219-ARM64-defconfig-enable-CEC-support.patch
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dm-path-selector.h
/*
* Copyright (C) 2003 Sistina Software.
* Copyright (C) 2004 Red Hat, Inc. All rights reserved.
*
* Module Author: Heinz Mauelshagen
*
* This file is released under the GPL.
*
* Path-Selector registration.
*/
#ifndef DM_PATH_SELECTOR_H
#define DM_PATH_SELECTOR_H
#include <linux/device-mapper.h>
#include "dm-mpath.h"
/*
* We provide an abstraction for the code that chooses which path
* to send some io down.
*/
struct path_selector_type;
struct path_selector {
struct path_selector_type *type;
void *context;
};
/* Information about a path selector type */
struct path_selector_type {
char *name;
struct module *module;
unsigned int table_args;
unsigned int info_args;
/*
* Constructs a path selector object, takes custom arguments
*/
int (*create) (struct path_selector *ps, unsigned argc, char **argv);
void (*destroy) (struct path_selector *ps);
/*
* Add an opaque path object, along with some selector specific
* path args (eg, path priority).
*/
int (*add_path) (struct path_selector *ps, struct dm_path *path,
int argc, char **argv, char **error);
/*
* Chooses a path for this io, if no paths are available then
* NULL will be returned.
*/
struct dm_path *(*select_path) (struct path_selector *ps,
size_t nr_bytes);
/*
* Notify the selector that a path has failed.
*/
void (*fail_path) (struct path_selector *ps, struct dm_path *p);
/*
* Ask selector to reinstate a path.
*/
int (*reinstate_path) (struct path_selector *ps, struct dm_path *p);
/*
* Table content based on parameters added in ps_add_path_fn
* or path selector status
*/
int (*status) (struct path_selector *ps, struct dm_path *path,
status_type_t type, char *result, unsigned int maxlen);
int (*start_io) (struct path_selector *ps, struct dm_path *path,
size_t nr_bytes);
int (*end_io) (struct path_selector *ps, struct dm_path *path,
size_t nr_bytes);
};
/* Register a path selector */
int dm_register_path_selector(struct path_selector_type *type);
/* Unregister a path selector */
int dm_unregister_path_selector(struct path_selector_type *type);
/* Returns a registered path selector type */
struct path_selector_type *dm_get_path_selector(const char *name);
/* Releases a path selector */
void dm_put_path_selector(struct path_selector_type *pst);
#endif
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