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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:
Benoît Canet 2011-10-17 17:28:30 +02:00 committed by Avi Kivity
parent 5699301fe2
commit 8ea72f384a
1 changed files with 11 additions and 17 deletions
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28
hw/stellaris.c
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@ -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);