diff options
Diffstat (limited to 'drivers/base/regmap/internal.h')
| -rw-r--r-- | drivers/base/regmap/internal.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h new file mode 100644 index 00000000000..7e61504a7ac --- /dev/null +++ b/drivers/base/regmap/internal.h @@ -0,0 +1,45 @@ +/* + * Register map access API internal header + * + * Copyright 2011 Wolfson Microelectronics plc + * + * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _REGMAP_INTERNAL_H +#define _REGMAP_INTERNAL_H + +#include <linux/regmap.h> + +struct regmap; + +struct regmap_format { + size_t buf_size; + size_t reg_bytes; + size_t val_bytes; + void (*format_write)(struct regmap *map, + unsigned int reg, unsigned int val); + void (*format_reg)(void *buf, unsigned int reg); + void (*format_val)(void *buf, unsigned int val); + unsigned int (*parse_val)(void *buf); +}; + +struct regmap { + struct mutex lock; + + struct device *dev; /* Device we do I/O on */ + void *work_buf; /* Scratch buffer used to format I/O */ + struct regmap_format format; /* Buffer format */ + const struct regmap_bus *bus; + + unsigned int max_register; + bool (*writeable_reg)(struct device *dev, unsigned int reg); + bool (*readable_reg)(struct device *dev, unsigned int reg); + bool (*volatile_reg)(struct device *dev, unsigned int reg); +}; + +#endif |