u-boot/include/regmap.h

17  * instantiate a regmap with a backend depending on the bus the device is
18  * attached to, and use the regmap API to access the register map through that
22  * arbitrary length from/to the regmap.
24  * The endianness of regmap accesses is selectable for each map through device
28  * Furthermore, the register map described by a regmap can be split into
38  * enum regmap_size_t - Access sizes for regmap reads and writes
53  * enum regmap_endianness_t - Endianness for regmap reads and writes
77  * struct regmap - a way of accessing hardware/bus registers
82 struct regmap {  struct
94  * regmap_write() - Write a 32-bit value to a regmap  argument
96  * @map:	Regmap to write to
97  * @offset:	Offset in the regmap to write to
98  * @val:	Data to write to the regmap at the specified offset
101  * regmap; if the size of data to be read is different, the regmap_raw_write
106 int regmap_write(struct regmap *map, uint offset, uint val);
109  * regmap_read() - Read a 32-bit value from a regmap
111  * @map:	Regmap to read from
112  * @offset:	Offset in the regmap to read from
113  * @valp:	Pointer to the buffer to receive the data read from the regmap
117  * regmap; if the size of data to be read is different, the regmap_raw_read
122 int regmap_read(struct regmap *map, uint offset, uint *valp);
125  * regmap_raw_write() - Write a value of specified length to a regmap
127  * @map:	Regmap to write to
128  * @offset:	Offset in the regmap to write to
129  * @val:	Value to write to the regmap at the specified offset
130  * @val_len:	Length of the data to be written to the regmap
133  * arbitrary length to the regmap, and not just 32-bit values, and is thus a
138 int regmap_raw_write(struct regmap *map, uint offset, const void *val,
142  * regmap_raw_read() - Read a value of specified length from a regmap
144  * @map:	Regmap to read from
145  * @offset:	Offset in the regmap to read from
146  * @valp:	Pointer to the buffer to receive the data read from the regmap
148  * @val_len:	Length of the data to be read from the regmap
151  * arbitrary length from the regmap, and not just 32-bit values, and is thus a
156 int regmap_raw_read(struct regmap *map, uint offset, void *valp,
161  *			      regmap
163  * @map:	Regmap to write to
164  * @range_num:	Number of the range in the regmap to write to
165  * @offset:	Offset in the regmap to write to
166  * @val:	Value to write to the regmap at the specified offset
167  * @val_len:	Length of the data to be written to the regmap
171 int regmap_raw_write_range(struct regmap *map, uint range_num, uint offset,
176  *			     regmap
178  * @map:	Regmap to read from
179  * @range_num:	Number of the range in the regmap to write to
180  * @offset:	Offset in the regmap to read from
181  * @valp:	Pointer to the buffer to receive the data read from the regmap
183  * @val_len:	Length of the data to be read from the regmap
187 int regmap_raw_read_range(struct regmap *map, uint range_num, uint offset,
191  * regmap_range_set() - Set a value in a regmap range described by a struct
192  * @map:    Regmap in which a value should be set
193  * @range:  Range of the regmap in which a value should be set
194  * @type:   Structure type that describes the memory layout of the regmap range
195  * @member: Member of the describing structure that should be set in the regmap
197  * @val:    Value which should be written to the regmap range
207  * regmap_set() - Set a value in a regmap described by a struct
208  * @map:    Regmap in which a value should be set
209  * @type:   Structure type that describes the memory layout of the regmap
210  * @member: Member of the describing structure that should be set in the regmap
211  * @val:    Value which should be written to the regmap
217  * regmap_range_get() - Get a value from a regmap range described by a struct
218  * @map:    Regmap from which a value should be read
219  * @range:  Range of the regmap from which a value should be read
220  * @type:   Structure type that describes the memory layout of the regmap
223  *          regmap range
224  * @valp:   Variable that receives the value read from the regmap range
231  * regmap_get() - Get a value from a regmap described by a struct
232  * @map:    Regmap from which a value should be read
233  * @type:   Structure type that describes the memory layout of the regmap
236  *          regmap
237  * @valp:   Variable that receives the value read from the regmap
245  * @map:	Regmap to read from
301 int regmap_update_bits(struct regmap *map, uint offset, uint mask, uint val);
312 int regmap_init_mem(ofnode node, struct regmap **mapp);
320  * @count:	Number of pairs (e.g. 1 if the regmap has a single entry)
324  * This creates a new regmap with a list of regions passed in, rather than
331 			     struct regmap **mapp);
334  * regmap_get_range() - Obtain the base memory address of a regmap range
336  * @map:	Regmap to query
340 void *regmap_get_range(struct regmap *map, unsigned int range_num);
343  * regmap_uninit() - free a previously inited regmap
345  * @map:	Regmap to free
348 int regmap_uninit(struct regmap *map);