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i2c: Move the bus class to i2c.h 

Some devices need access to it.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Message-id: 20180227104903.21353-3-linus.walleij@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Corey Minyard 2018-03-01 11:05:45 +00:00 committed by Peter Maydell
parent 373b8ac794
commit aa88d7ad28
2 changed files with 17 additions and 17 deletions
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17
hw/i2c/core.c
View File

@ -10,30 +10,13 @@
#include "qemu/osdep.h"
#include "hw/i2c/i2c.h"
typedef struct I2CNode I2CNode;
struct I2CNode {
I2CSlave *elt;
QLIST_ENTRY(I2CNode) next;
};
#define I2C_BROADCAST 0x00
struct I2CBus {
BusState qbus;
QLIST_HEAD(, I2CNode) current_devs;
uint8_t saved_address;
bool broadcast;
};
static Property i2c_props[] = {
DEFINE_PROP_UINT8("address", struct I2CSlave, address, 0),
DEFINE_PROP_END_OF_LIST(),
};
#define TYPE_I2C_BUS "i2c-bus"
#define I2C_BUS(obj) OBJECT_CHECK(I2CBus, (obj), TYPE_I2C_BUS)
static const TypeInfo i2c_bus_info = {
.name = TYPE_I2C_BUS,
.parent = TYPE_BUS,

17
include/hw/i2c/i2c.h
View File

@ -56,6 +56,23 @@ struct I2CSlave {
uint8_t address;
};
#define TYPE_I2C_BUS "i2c-bus"
#define I2C_BUS(obj) OBJECT_CHECK(I2CBus, (obj), TYPE_I2C_BUS)
typedef struct I2CNode I2CNode;
struct I2CNode {
I2CSlave *elt;
QLIST_ENTRY(I2CNode) next;
};
struct I2CBus {
BusState qbus;
QLIST_HEAD(, I2CNode) current_devs;
uint8_t saved_address;
bool broadcast;
};
I2CBus *i2c_init_bus(DeviceState *parent, const char *name);
void i2c_set_slave_address(I2CSlave *dev, uint8_t address);
int i2c_bus_busy(I2CBus *bus);