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register: QOMify 

QOMify registers as a child of TYPE_DEVICE. This allows registers to
define GPIOs.

Define an init helper that will do QOM initialisation.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: KONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 2545f71db26bf5586ca0c08a3e3cf1b217450552.1467053537.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Crosthwaite 2016-07-04 13:06:36 +01:00 committed by Peter Maydell
parent 684204593d
commit 49e14ddbce
2 changed files with 37 additions and 0 deletions
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23
hw/core/register.c
View File

@ -159,6 +159,17 @@ void register_reset(RegisterInfo *reg)
register_write_val(reg, reg->access->reset);
}
void register_init(RegisterInfo *reg)
{
assert(reg);
if (!reg->data || !reg->access) {
return;
}
object_initialize((void *)reg, sizeof(*reg), TYPE_REGISTER);
}
void register_write_memory(void *opaque, hwaddr addr,
uint64_t value, unsigned size)
{
@ -217,3 +228,15 @@ uint64_t register_read_memory(void *opaque, hwaddr addr,
return extract64(read_val, 0, size * 8);
}
static const TypeInfo register_info = {
.name = TYPE_REGISTER,
.parent = TYPE_DEVICE,
};
static void register_register_types(void)
{
type_register_static(&register_info);
}
type_init(register_register_types)

14
include/hw/register.h
View File

@ -11,6 +11,7 @@
#ifndef REGISTER_H
#define REGISTER_H
#include "hw/qdev-core.h"
#include "exec/memory.h"
typedef struct RegisterInfo RegisterInfo;
@ -72,6 +73,9 @@ struct RegisterAccessInfo {
*/
struct RegisterInfo {
/* <private> */
DeviceState parent_obj;
/* <public> */
void *data;
int data_size;
@ -81,6 +85,9 @@ struct RegisterInfo {
void *opaque;
};
#define TYPE_REGISTER "qemu,register"
#define REGISTER(obj) OBJECT_CHECK(RegisterInfo, (obj), TYPE_REGISTER)
/**
* This structure is used to group all of the individual registers which are
* modeled using the RegisterInfo structure.
@ -131,6 +138,13 @@ uint64_t register_read(RegisterInfo *reg, uint64_t re, const char* prefix,
void register_reset(RegisterInfo *reg);
/**
* Initialize a register.
* @reg: Register to initialize
*/
void register_init(RegisterInfo *reg);
/**
* Memory API MMIO write handler that will write to a Register API register.
* @opaque: RegisterInfo to write to