236 lines
6.7 KiB
C
236 lines
6.7 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
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*/
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#ifndef _DSI_PARSER_H_
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#define _DSI_PARSER_H_
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#include <linux/of.h>
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#include <linux/of_gpio.h>
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#ifdef CONFIG_DSI_PARSER
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void *dsi_parser_get(struct device *dev);
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void dsi_parser_put(void *data);
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int dsi_parser_dbg_init(void *parser, struct dentry *dir);
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void *dsi_parser_get_head_node(void *parser,
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const u8 *data, u32 size);
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const void *dsi_parser_get_property(const struct device_node *np,
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const char *name, int *lenp);
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bool dsi_parser_read_bool(const struct device_node *np,
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const char *propname);
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int dsi_parser_read_u64(const struct device_node *np, const char *propname,
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u64 *out_value);
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int dsi_parser_read_u32(const struct device_node *np,
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const char *propname, u32 *out_value);
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int dsi_parser_read_u32_array(const struct device_node *np,
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const char *propname,
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u32 *out_values, size_t sz);
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int dsi_parser_read_string(const struct device_node *np,
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const char *propname, const char **out_string);
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struct device_node *dsi_parser_get_child_by_name(const struct device_node *node,
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const char *name);
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int dsi_parser_get_child_count(const struct device_node *np);
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struct property *dsi_parser_find_property(const struct device_node *np,
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const char *name, int *lenp);
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struct device_node *dsi_parser_get_next_child(const struct device_node *np,
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struct device_node *prev);
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int dsi_parser_count_u32_elems(const struct device_node *np,
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const char *propname);
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int dsi_parser_count_strings(const struct device_node *np,
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const char *propname);
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int dsi_parser_read_string_index(const struct device_node *np,
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const char *propname,
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int index, const char **output);
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int dsi_parser_get_named_gpio(struct device_node *np,
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const char *propname, int index);
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#else /* CONFIG_DSI_PARSER */
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static inline void *dsi_parser_get(struct device *dev)
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{
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return NULL;
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}
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static inline void dsi_parser_put(void *data)
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{
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}
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static inline int dsi_parser_dbg_init(void *parser, struct dentry *dir)
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{
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return -ENODEV;
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}
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static inline void *dsi_parser_get_head_node(void *parser,
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const u8 *data, u32 size)
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{
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return NULL;
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}
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static inline const void *dsi_parser_get_property(const struct device_node *np,
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const char *name, int *lenp)
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{
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return NULL;
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}
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static inline bool dsi_parser_read_bool(const struct device_node *np,
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const char *propname)
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{
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return false;
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}
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static inline int dsi_parser_read_u64(const struct device_node *np,
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const char *propname, u64 *out_value)
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{
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return -ENODEV;
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}
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static inline int dsi_parser_read_u32(const struct device_node *np,
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const char *propname, u32 *out_value)
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{
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return -ENODEV;
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}
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static inline int dsi_parser_read_u32_array(const struct device_node *np,
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const char *propname, u32 *out_values, size_t sz)
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{
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return -ENODEV;
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}
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static inline int dsi_parser_read_string(const struct device_node *np,
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const char *propname, const char **out_string)
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{
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return -ENODEV;
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}
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static inline struct device_node *dsi_parser_get_child_by_name(
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const struct device_node *node,
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const char *name)
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{
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return NULL;
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}
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static inline int dsi_parser_get_child_count(const struct device_node *np)
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{
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return -ENODEV;
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}
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static inline struct property *dsi_parser_find_property(
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const struct device_node *np,
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const char *name, int *lenp)
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{
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return NULL;
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}
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static inline struct device_node *dsi_parser_get_next_child(
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const struct device_node *np,
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struct device_node *prev)
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{
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return NULL;
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}
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static inline int dsi_parser_count_u32_elems(const struct device_node *np,
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const char *propname)
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{
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return -ENODEV;
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}
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static inline int dsi_parser_count_strings(const struct device_node *np,
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const char *propname)
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{
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return -ENODEV;
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}
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static inline int dsi_parser_read_string_index(const struct device_node *np,
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const char *propname,
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int index, const char **output)
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{
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return -ENODEV;
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}
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static inline int dsi_parser_get_named_gpio(struct device_node *np,
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const char *propname, int index)
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{
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return -ENODEV;
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}
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#endif /* CONFIG_DSI_PARSER */
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#define dsi_for_each_child_node(parent, child) \
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for (child = utils->get_next_child(parent, NULL); \
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child != NULL; \
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child = utils->get_next_child(parent, child))
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struct dsi_parser_utils {
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void *data;
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struct device_node *node;
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const void *(*get_property)(const struct device_node *np,
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const char *name, int *lenp);
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int (*read_u64)(const struct device_node *np,
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const char *propname, u64 *out_value);
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int (*read_u32)(const struct device_node *np,
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const char *propname, u32 *out_value);
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bool (*read_bool)(const struct device_node *np,
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const char *propname);
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int (*read_u32_array)(const struct device_node *np,
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const char *propname, u32 *out_values, size_t sz);
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int (*read_string)(const struct device_node *np, const char *propname,
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const char **out_string);
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struct device_node *(*get_child_by_name)(
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const struct device_node *node,
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const char *name);
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int (*get_child_count)(const struct device_node *np);
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struct property *(*find_property)(const struct device_node *np,
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const char *name, int *lenp);
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struct device_node *(*get_next_child)(const struct device_node *np,
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struct device_node *prev);
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int (*count_u32_elems)(const struct device_node *np,
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const char *propname);
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int (*get_named_gpio)(struct device_node *np,
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const char *propname, int index);
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int (*get_available_child_count)(const struct device_node *np);
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};
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static inline struct dsi_parser_utils *dsi_parser_get_of_utils(void)
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{
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static struct dsi_parser_utils of_utils = {
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.get_property = of_get_property,
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.read_bool = of_property_read_bool,
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.read_u64 = of_property_read_u64,
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.read_u32 = of_property_read_u32,
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.read_u32_array = of_property_read_u32_array,
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.read_string = of_property_read_string,
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.get_child_by_name = of_get_child_by_name,
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.get_child_count = of_get_child_count,
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.get_available_child_count = of_get_available_child_count,
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.find_property = of_find_property,
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.get_next_child = of_get_next_child,
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.count_u32_elems = of_property_count_u32_elems,
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.get_named_gpio = of_get_named_gpio,
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};
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return &of_utils;
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}
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static inline struct dsi_parser_utils *dsi_parser_get_parser_utils(void)
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{
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static struct dsi_parser_utils parser_utils = {
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.get_property = dsi_parser_get_property,
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.read_bool = dsi_parser_read_bool,
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.read_u64 = dsi_parser_read_u64,
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.read_u32 = dsi_parser_read_u32,
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.read_u32_array = dsi_parser_read_u32_array,
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.read_string = dsi_parser_read_string,
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.get_child_by_name = dsi_parser_get_child_by_name,
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.get_child_count = dsi_parser_get_child_count,
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.get_available_child_count = dsi_parser_get_child_count,
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.find_property = dsi_parser_find_property,
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.get_next_child = dsi_parser_get_next_child,
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.count_u32_elems = dsi_parser_count_u32_elems,
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.get_named_gpio = dsi_parser_get_named_gpio,
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};
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return &parser_utils;
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}
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#endif
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