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qemu
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switch debugcon to memory api 

Also some QOM glue while being at it.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-12-12 15:43:35 +01:00
parent 25bbf61e4b
commit e8ba1ce92d
1 changed files with 24 additions and 7 deletions
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31
hw/debugcon.c
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@ -29,20 +29,27 @@
#include "isa.h"
#include "pc.h"
#define TYPE_ISA_DEBUGCON_DEVICE "isa-debugcon"
#define ISA_DEBUGCON_DEVICE(obj) \
OBJECT_CHECK(ISADebugconState, (obj), TYPE_ISA_DEBUGCON_DEVICE)
//#define DEBUG_DEBUGCON
typedef struct DebugconState {
MemoryRegion io;
CharDriverState *chr;
uint32_t readback;
} DebugconState;
typedef struct ISADebugconState {
ISADevice dev;
ISADevice parent_obj;
uint32_t iobase;
DebugconState state;
} ISADebugconState;
static void debugcon_ioport_write(void *opaque, uint32_t addr, uint32_t val)
static void debugcon_ioport_write(void *opaque, hwaddr addr, uint64_t val,
unsigned width)
{
DebugconState *s = opaque;
unsigned char ch = val;
@ -55,7 +62,7 @@ static void debugcon_ioport_write(void *opaque, uint32_t addr, uint32_t val)
}
static uint32_t debugcon_ioport_read(void *opaque, uint32_t addr)
static uint64_t debugcon_ioport_read(void *opaque, hwaddr addr, unsigned width)
{
DebugconState *s = opaque;
@ -66,6 +73,14 @@ static uint32_t debugcon_ioport_read(void *opaque, uint32_t addr)
return s->readback;
}
static const MemoryRegionOps debugcon_ops = {
.read = debugcon_ioport_read,
.write = debugcon_ioport_write,
.valid.min_access_size = 1,
.valid.max_access_size = 1,
.endianness = DEVICE_LITTLE_ENDIAN,
};
static void debugcon_init_core(DebugconState *s)
{
if (!s->chr) {
@ -78,12 +93,14 @@ static void debugcon_init_core(DebugconState *s)
static int debugcon_isa_initfn(ISADevice *dev)
{
ISADebugconState *isa = DO_UPCAST(ISADebugconState, dev, dev);
ISADebugconState *isa = ISA_DEBUGCON_DEVICE(dev);
DebugconState *s = &isa->state;
debugcon_init_core(s);
register_ioport_write(isa->iobase, 1, 1, debugcon_ioport_write, s);
register_ioport_read(isa->iobase, 1, 1, debugcon_ioport_read, s);
memory_region_init_io(&s->io, &debugcon_ops, s,
TYPE_ISA_DEBUGCON_DEVICE, 1);
memory_region_add_subregion(isa_address_space_io(dev),
isa->iobase, &s->io);
return 0;
}
@ -103,7 +120,7 @@ static void debugcon_isa_class_initfn(ObjectClass *klass, void *data)
}
static TypeInfo debugcon_isa_info = {
.name = "isa-debugcon",
.name = TYPE_ISA_DEBUGCON_DEVICE,
.parent = TYPE_ISA_DEVICE,
.instance_size = sizeof(ISADebugconState),
.class_init = debugcon_isa_class_initfn,