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@@ -1,300 +0,0 @@
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-/* SPDX-License-Identifier: GPL-2.0 */
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-/*
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- * Register map access API internal header
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- *
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- * Copyright 2011 Wolfson Microelectronics plc
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- *
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- * Author: Mark Brown <[email protected]>
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- */
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-
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-#ifndef _REGMAP_INTERNAL_H
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-#define _REGMAP_INTERNAL_H
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-
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-#include <linux/device.h>
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-#include <linux/regmap.h>
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-#include <linux/fs.h>
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-#include <linux/list.h>
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-#include <linux/wait.h>
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-
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-struct regmap;
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-struct regcache_ops;
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-
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-struct regmap_debugfs_off_cache {
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- struct list_head list;
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- off_t min;
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- off_t max;
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- unsigned int base_reg;
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- unsigned int max_reg;
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-};
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-
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-struct regmap_format {
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- size_t buf_size;
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- size_t reg_bytes;
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- size_t pad_bytes;
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- size_t val_bytes;
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- void (*format_write)(struct regmap *map,
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- unsigned int reg, unsigned int val);
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- void (*format_reg)(void *buf, unsigned int reg, unsigned int shift);
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- void (*format_val)(void *buf, unsigned int val, unsigned int shift);
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- unsigned int (*parse_val)(const void *buf);
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- void (*parse_inplace)(void *buf);
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-};
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-
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-struct regmap_async {
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- struct list_head list;
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- struct regmap *map;
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- void *work_buf;
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-};
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-
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-struct regmap {
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- union {
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- struct mutex mutex;
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- struct {
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- spinlock_t spinlock;
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- unsigned long spinlock_flags;
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- };
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- };
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- regmap_lock lock;
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- regmap_unlock unlock;
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- void *lock_arg; /* This is passed to lock/unlock functions */
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- gfp_t alloc_flags;
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-
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- struct device *dev; /* Device we do I/O on */
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- void *work_buf; /* Scratch buffer used to format I/O */
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- struct regmap_format format; /* Buffer format */
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- const struct regmap_bus *bus;
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- void *bus_context;
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- const char *name;
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-
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- bool async;
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- spinlock_t async_lock;
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- wait_queue_head_t async_waitq;
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- struct list_head async_list;
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- struct list_head async_free;
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- int async_ret;
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-
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-#ifdef CONFIG_DEBUG_FS
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- bool debugfs_disable;
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- struct dentry *debugfs;
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- const char *debugfs_name;
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-
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- unsigned int debugfs_reg_len;
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- unsigned int debugfs_val_len;
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- unsigned int debugfs_tot_len;
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-
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- struct list_head debugfs_off_cache;
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- struct mutex cache_lock;
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-#endif
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-
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- unsigned int max_register;
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- bool (*writeable_reg)(struct device *dev, unsigned int reg);
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- bool (*readable_reg)(struct device *dev, unsigned int reg);
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- bool (*volatile_reg)(struct device *dev, unsigned int reg);
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- bool (*precious_reg)(struct device *dev, unsigned int reg);
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- bool (*writeable_noinc_reg)(struct device *dev, unsigned int reg);
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- bool (*readable_noinc_reg)(struct device *dev, unsigned int reg);
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- const struct regmap_access_table *wr_table;
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- const struct regmap_access_table *rd_table;
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- const struct regmap_access_table *volatile_table;
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- const struct regmap_access_table *precious_table;
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- const struct regmap_access_table *wr_noinc_table;
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- const struct regmap_access_table *rd_noinc_table;
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-
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- int (*reg_read)(void *context, unsigned int reg, unsigned int *val);
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- int (*reg_write)(void *context, unsigned int reg, unsigned int val);
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- int (*reg_update_bits)(void *context, unsigned int reg,
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- unsigned int mask, unsigned int val);
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-
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- bool defer_caching;
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-
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- unsigned long read_flag_mask;
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- unsigned long write_flag_mask;
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-
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- /* number of bits to (left) shift the reg value when formatting*/
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- int reg_shift;
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- int reg_stride;
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- int reg_stride_order;
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-
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- /* regcache specific members */
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- const struct regcache_ops *cache_ops;
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- enum regcache_type cache_type;
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-
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- /* number of bytes in reg_defaults_raw */
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- unsigned int cache_size_raw;
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- /* number of bytes per word in reg_defaults_raw */
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- unsigned int cache_word_size;
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- /* number of entries in reg_defaults */
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- unsigned int num_reg_defaults;
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- /* number of entries in reg_defaults_raw */
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- unsigned int num_reg_defaults_raw;
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-
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- /* if set, only the cache is modified not the HW */
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- bool cache_only;
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- /* if set, only the HW is modified not the cache */
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- bool cache_bypass;
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- /* if set, remember to free reg_defaults_raw */
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- bool cache_free;
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-
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- struct reg_default *reg_defaults;
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- const void *reg_defaults_raw;
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- void *cache;
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- /* if set, the cache contains newer data than the HW */
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- bool cache_dirty;
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- /* if set, the HW registers are known to match map->reg_defaults */
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- bool no_sync_defaults;
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-
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- struct reg_sequence *patch;
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- int patch_regs;
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-
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- /* if set, converts bulk read to single read */
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- bool use_single_read;
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- /* if set, converts bulk write to single write */
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- bool use_single_write;
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- /* if set, the device supports multi write mode */
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- bool can_multi_write;
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-
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- /* if set, raw reads/writes are limited to this size */
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- size_t max_raw_read;
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- size_t max_raw_write;
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-
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- struct rb_root range_tree;
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- void *selector_work_buf; /* Scratch buffer used for selector */
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-
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- struct hwspinlock *hwlock;
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-
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- /* if set, the regmap core can sleep */
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- bool can_sleep;
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-};
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-
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-struct regcache_ops {
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- const char *name;
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- enum regcache_type type;
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- int (*init)(struct regmap *map);
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- int (*exit)(struct regmap *map);
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-#ifdef CONFIG_DEBUG_FS
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- void (*debugfs_init)(struct regmap *map);
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-#endif
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- int (*read)(struct regmap *map, unsigned int reg, unsigned int *value);
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- int (*write)(struct regmap *map, unsigned int reg, unsigned int value);
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- int (*sync)(struct regmap *map, unsigned int min, unsigned int max);
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- int (*drop)(struct regmap *map, unsigned int min, unsigned int max);
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-};
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-
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-bool regmap_cached(struct regmap *map, unsigned int reg);
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-bool regmap_writeable(struct regmap *map, unsigned int reg);
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-bool regmap_readable(struct regmap *map, unsigned int reg);
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-bool regmap_volatile(struct regmap *map, unsigned int reg);
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-bool regmap_precious(struct regmap *map, unsigned int reg);
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-bool regmap_writeable_noinc(struct regmap *map, unsigned int reg);
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-bool regmap_readable_noinc(struct regmap *map, unsigned int reg);
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-
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-int _regmap_write(struct regmap *map, unsigned int reg,
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- unsigned int val);
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-
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-struct regmap_range_node {
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- struct rb_node node;
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- const char *name;
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- struct regmap *map;
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-
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- unsigned int range_min;
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- unsigned int range_max;
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-
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- unsigned int selector_reg;
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- unsigned int selector_mask;
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- int selector_shift;
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-
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- unsigned int window_start;
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- unsigned int window_len;
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-};
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-
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-struct regmap_field {
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- struct regmap *regmap;
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- unsigned int mask;
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- /* lsb */
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- unsigned int shift;
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- unsigned int reg;
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-
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- unsigned int id_size;
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- unsigned int id_offset;
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-};
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-
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-#ifdef CONFIG_DEBUG_FS
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-extern void regmap_debugfs_initcall(void);
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-extern void regmap_debugfs_init(struct regmap *map);
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-extern void regmap_debugfs_exit(struct regmap *map);
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-
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-static inline void regmap_debugfs_disable(struct regmap *map)
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-{
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- map->debugfs_disable = true;
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-}
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-
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-#else
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-static inline void regmap_debugfs_initcall(void) { }
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-static inline void regmap_debugfs_init(struct regmap *map) { }
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-static inline void regmap_debugfs_exit(struct regmap *map) { }
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-static inline void regmap_debugfs_disable(struct regmap *map) { }
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-#endif
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-
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-/* regcache core declarations */
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-int regcache_init(struct regmap *map, const struct regmap_config *config);
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-void regcache_exit(struct regmap *map);
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-int regcache_read(struct regmap *map,
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- unsigned int reg, unsigned int *value);
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-int regcache_write(struct regmap *map,
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- unsigned int reg, unsigned int value);
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-int regcache_sync(struct regmap *map);
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-int regcache_sync_block(struct regmap *map, void *block,
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- unsigned long *cache_present,
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- unsigned int block_base, unsigned int start,
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- unsigned int end);
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-
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-static inline const void *regcache_get_val_addr(struct regmap *map,
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- const void *base,
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- unsigned int idx)
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-{
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- return base + (map->cache_word_size * idx);
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-}
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-
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-unsigned int regcache_get_val(struct regmap *map, const void *base,
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- unsigned int idx);
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-bool regcache_set_val(struct regmap *map, void *base, unsigned int idx,
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- unsigned int val);
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-int regcache_lookup_reg(struct regmap *map, unsigned int reg);
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-
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-int _regmap_raw_write(struct regmap *map, unsigned int reg,
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- const void *val, size_t val_len, bool noinc);
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-
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-void regmap_async_complete_cb(struct regmap_async *async, int ret);
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-
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-enum regmap_endian regmap_get_val_endian(struct device *dev,
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- const struct regmap_bus *bus,
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- const struct regmap_config *config);
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-
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-extern struct regcache_ops regcache_rbtree_ops;
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-extern struct regcache_ops regcache_lzo_ops;
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-extern struct regcache_ops regcache_flat_ops;
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-
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-static inline const char *regmap_name(const struct regmap *map)
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-{
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- if (map->dev)
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- return dev_name(map->dev);
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-
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- return map->name;
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-}
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-
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-static inline unsigned int regmap_get_offset(const struct regmap *map,
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- unsigned int index)
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-{
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- if (map->reg_stride_order >= 0)
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- return index << map->reg_stride_order;
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- else
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- return index * map->reg_stride;
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-}
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-
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-static inline unsigned int regcache_get_index_by_order(const struct regmap *map,
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- unsigned int reg)
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-{
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- return reg >> map->reg_stride_order;
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-}
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-
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-#endif
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