mirror of https://gitee.com/openkylin/qemu.git
stellaris: convert i2c to memory API
Signed-off-by: Benoit Canet <benoit.canet@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
parent
5699301fe2
commit
8ea72f384a
|
@ -687,6 +687,7 @@ typedef struct {
|
|||
SysBusDevice busdev;
|
||||
i2c_bus *bus;
|
||||
qemu_irq irq;
|
||||
MemoryRegion iomem;
|
||||
uint32_t msa;
|
||||
uint32_t mcs;
|
||||
uint32_t mdr;
|
||||
|
@ -704,7 +705,8 @@ typedef struct {
|
|||
#define STELLARIS_I2C_MCS_IDLE 0x20
|
||||
#define STELLARIS_I2C_MCS_BUSBSY 0x40
|
||||
|
||||
static uint32_t stellaris_i2c_read(void *opaque, target_phys_addr_t offset)
|
||||
static uint64_t stellaris_i2c_read(void *opaque, target_phys_addr_t offset,
|
||||
unsigned size)
|
||||
{
|
||||
stellaris_i2c_state *s = (stellaris_i2c_state *)opaque;
|
||||
|
||||
|
@ -741,7 +743,7 @@ static void stellaris_i2c_update(stellaris_i2c_state *s)
|
|||
}
|
||||
|
||||
static void stellaris_i2c_write(void *opaque, target_phys_addr_t offset,
|
||||
uint32_t value)
|
||||
uint64_t value, unsigned size)
|
||||
{
|
||||
stellaris_i2c_state *s = (stellaris_i2c_state *)opaque;
|
||||
|
||||
|
@ -832,16 +834,10 @@ static void stellaris_i2c_reset(stellaris_i2c_state *s)
|
|||
stellaris_i2c_update(s);
|
||||
}
|
||||
|
||||
static CPUReadMemoryFunc * const stellaris_i2c_readfn[] = {
|
||||
stellaris_i2c_read,
|
||||
stellaris_i2c_read,
|
||||
stellaris_i2c_read
|
||||
};
|
||||
|
||||
static CPUWriteMemoryFunc * const stellaris_i2c_writefn[] = {
|
||||
stellaris_i2c_write,
|
||||
stellaris_i2c_write,
|
||||
stellaris_i2c_write
|
||||
static const MemoryRegionOps stellaris_i2c_ops = {
|
||||
.read = stellaris_i2c_read,
|
||||
.write = stellaris_i2c_write,
|
||||
.endianness = DEVICE_NATIVE_ENDIAN,
|
||||
};
|
||||
|
||||
static const VMStateDescription vmstate_stellaris_i2c = {
|
||||
|
@ -865,16 +861,14 @@ static int stellaris_i2c_init(SysBusDevice * dev)
|
|||
{
|
||||
stellaris_i2c_state *s = FROM_SYSBUS(stellaris_i2c_state, dev);
|
||||
i2c_bus *bus;
|
||||
int iomemtype;
|
||||
|
||||
sysbus_init_irq(dev, &s->irq);
|
||||
bus = i2c_init_bus(&dev->qdev, "i2c");
|
||||
s->bus = bus;
|
||||
|
||||
iomemtype = cpu_register_io_memory(stellaris_i2c_readfn,
|
||||
stellaris_i2c_writefn, s,
|
||||
DEVICE_NATIVE_ENDIAN);
|
||||
sysbus_init_mmio(dev, 0x1000, iomemtype);
|
||||
memory_region_init_io(&s->iomem, &stellaris_i2c_ops, s,
|
||||
"i2c", 0x1000);
|
||||
sysbus_init_mmio_region(dev, &s->iomem);
|
||||
/* ??? For now we only implement the master interface. */
|
||||
stellaris_i2c_reset(s);
|
||||
vmstate_register(&dev->qdev, -1, &vmstate_stellaris_i2c, s);
|
||||
|
|
Loading…
Reference in New Issue