include/hw/register.h

7  * This work is licensed under the terms of the GNU GPL, version 2.  See
8  * the COPYING file in the top-level directory.
27  * @name: String name of the register
28  * @ro: whether or not the bit is read-only
29  * @w1c: bits with the common write 1 to clear semantic.
34  * @pre_write: Pre write callback. Passed the value that's to be written,
35  * immediately before the actual write. The returned value is what is written,
36  * giving the handler a chance to modify the written value.
37  * @post_write: Post write callback. Passed the written value. Most write side
40  * @post_read: Post read callback. Passes the value that is about to be returned
41  * for a read. The return value from this function is what is ultimately read,
42  * allowing this function to modify the value before return to the client.
64  * @data: pointer to the register data. Will be cast
65  * to the relevant uint type depending on data_size.
66  * @data_size: Size of the register in bytes. Must be
74  * @opaque: Opaque data for the register
95  * This structure is used to group all of the individual registers which are
96  * modeled using the RegisterInfo structure.
98  * @r is an array containing of all the relevant RegisterInfo structures.
100  * @num_elements is the number of elements in the array r
102  * @mem: optional Memory region for the register
120  * @prefix: The device prefix that should be printed before the register name
121  * @debug: Should the write operation debug information be printed?
131  * @prefix: The device prefix that should be printed before the register name
132  * @debug: Should the read operation debug information be printed?
140  * Resets a register. This will also call the post_write hook if it exists.
141  * @reg: The register to reset.
179  * @owner: device owning the registers
186  * @memory_size: Size of the memory region
187  * returns: A structure containing all of the registers and an initialized
188  *          memory region (r_array->mem) the caller should add to a container.
216  * This function should be called to cleanup the registers that were initialized
218  * from the device's instance_finalize function.
220  * Any memory operations that the device performed that require cleanup (such
223  * @r_array: A structure containing all of the registers, as returned by