projects / mirror_ubuntu-hirsute-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 93de9124 MB |
1 | /* |
| 2 | * Register map access API internal header | |
| 3 | * | |
| 4 | * Copyright 2011 Wolfson Microelectronics plc | |
| 5 | * | |
| 6 | * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License version 2 as | |
| 10 | * published by the Free Software Foundation. | |
| 11 | */ | |
| 12 | ||
| 13 | #ifndef _REGMAP_INTERNAL_H | |
| 14 | #define _REGMAP_INTERNAL_H | |
| 15 | ||
| 16 | #include <linux/regmap.h> | |
| 31244e39 | 17 | #include <linux/fs.h> |
| 93de9124 MB |
18 | |
| 19 | struct regmap; | |
| 20 | ||
| 21 | struct regmap_format { | |
| 22 | size_t buf_size; | |
| 23 | size_t reg_bytes; | |
| 24 | size_t val_bytes; | |
| 25 | void (*format_write)(struct regmap *map, | |
| 26 | unsigned int reg, unsigned int val); | |
| 27 | void (*format_reg)(void *buf, unsigned int reg); | |
| 28 | void (*format_val)(void *buf, unsigned int val); | |
| 29 | unsigned int (*parse_val)(void *buf); | |
| 30 | }; | |
| 31 | ||
| 32 | struct regmap { | |
| 33 | struct mutex lock; | |
| 34 | ||
| 35 | struct device *dev; /* Device we do I/O on */ | |
| 36 | void *work_buf; /* Scratch buffer used to format I/O */ | |
| 37 | struct regmap_format format; /* Buffer format */ | |
| 38 | const struct regmap_bus *bus; | |
| 39 | ||
| 31244e39 MB |
40 | #ifdef CONFIG_DEBUG_FS |
| 41 | struct dentry *debugfs; | |
| 42 | #endif | |
| 43 | ||
| 93de9124 MB |
44 | unsigned int max_register; |
| 45 | bool (*writeable_reg)(struct device *dev, unsigned int reg); | |
| 46 | bool (*readable_reg)(struct device *dev, unsigned int reg); | |
| 47 | bool (*volatile_reg)(struct device *dev, unsigned int reg); | |
| 2efe1642 | 48 | bool (*precious_reg)(struct device *dev, unsigned int reg); |
| 6f306441 LPC |
49 | |
| 50 | u8 read_flag_mask; | |
| 51 | u8 write_flag_mask; | |
| 93de9124 MB |
52 | }; |
| 53 | ||
| 8de2f081 MB |
54 | bool regmap_writeable(struct regmap *map, unsigned int reg); |
| 55 | bool regmap_readable(struct regmap *map, unsigned int reg); | |
| 56 | bool regmap_volatile(struct regmap *map, unsigned int reg); | |
| 57 | bool regmap_precious(struct regmap *map, unsigned int reg); | |
| 58 | ||
| 31244e39 MB |
59 | #ifdef CONFIG_DEBUG_FS |
| 60 | extern void regmap_debugfs_initcall(void); | |
| 61 | extern void regmap_debugfs_init(struct regmap *map); | |
| 62 | extern void regmap_debugfs_exit(struct regmap *map); | |
| 63 | #else | |
| bbcf61ca LPC |
64 | static inline void regmap_debugfs_initcall(void) { } |
| 65 | static inline void regmap_debugfs_init(struct regmap *map) { } | |
| 66 | static inline void regmap_debugfs_exit(struct regmap *map) { } | |
| 31244e39 MB |
67 | #endif |
| 68 | ||
| 93de9124 | 69 | #endif |