qemu/hw/audio/cs4231.c
Juan Quintela d49805aeea savevm: Remove all the unneeded version_minimum_id_old (x86)
After previous Peter patch, they are redundant.  This way we don't
assign them except when needed.  Once there, there were lots of case
where the ".fields" indentation was wrong:

     .fields = (VMStateField []) {
and
     .fields =      (VMStateField []) {

Change all the combinations to:

     .fields = (VMStateField[]){

The biggest problem (appart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Acked-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-16 04:55:26 +02:00

187 lines
4.7 KiB
C

/*
* QEMU Crystal CS4231 audio chip emulation
*
* Copyright (c) 2006 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "hw/sysbus.h"
#include "trace.h"
/*
* In addition to Crystal CS4231 there is a DMA controller on Sparc.
*/
#define CS_SIZE 0x40
#define CS_REGS 16
#define CS_DREGS 32
#define CS_MAXDREG (CS_DREGS - 1)
#define TYPE_CS4231 "SUNW,CS4231"
#define CS4231(obj) \
OBJECT_CHECK(CSState, (obj), TYPE_CS4231)
typedef struct CSState {
SysBusDevice parent_obj;
MemoryRegion iomem;
qemu_irq irq;
uint32_t regs[CS_REGS];
uint8_t dregs[CS_DREGS];
} CSState;
#define CS_RAP(s) ((s)->regs[0] & CS_MAXDREG)
#define CS_VER 0xa0
#define CS_CDC_VER 0x8a
static void cs_reset(DeviceState *d)
{
CSState *s = CS4231(d);
memset(s->regs, 0, CS_REGS * 4);
memset(s->dregs, 0, CS_DREGS);
s->dregs[12] = CS_CDC_VER;
s->dregs[25] = CS_VER;
}
static uint64_t cs_mem_read(void *opaque, hwaddr addr,
unsigned size)
{
CSState *s = opaque;
uint32_t saddr, ret;
saddr = addr >> 2;
switch (saddr) {
case 1:
switch (CS_RAP(s)) {
case 3: // Write only
ret = 0;
break;
default:
ret = s->dregs[CS_RAP(s)];
break;
}
trace_cs4231_mem_readl_dreg(CS_RAP(s), ret);
break;
default:
ret = s->regs[saddr];
trace_cs4231_mem_readl_reg(saddr, ret);
break;
}
return ret;
}
static void cs_mem_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
{
CSState *s = opaque;
uint32_t saddr;
saddr = addr >> 2;
trace_cs4231_mem_writel_reg(saddr, s->regs[saddr], val);
switch (saddr) {
case 1:
trace_cs4231_mem_writel_dreg(CS_RAP(s), s->dregs[CS_RAP(s)], val);
switch(CS_RAP(s)) {
case 11:
case 25: // Read only
break;
case 12:
val &= 0x40;
val |= CS_CDC_VER; // Codec version
s->dregs[CS_RAP(s)] = val;
break;
default:
s->dregs[CS_RAP(s)] = val;
break;
}
break;
case 2: // Read only
break;
case 4:
if (val & 1) {
cs_reset(DEVICE(s));
}
val &= 0x7f;
s->regs[saddr] = val;
break;
default:
s->regs[saddr] = val;
break;
}
}
static const MemoryRegionOps cs_mem_ops = {
.read = cs_mem_read,
.write = cs_mem_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static const VMStateDescription vmstate_cs4231 = {
.name ="cs4231",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32_ARRAY(regs, CSState, CS_REGS),
VMSTATE_UINT8_ARRAY(dregs, CSState, CS_DREGS),
VMSTATE_END_OF_LIST()
}
};
static int cs4231_init1(SysBusDevice *dev)
{
CSState *s = CS4231(dev);
memory_region_init_io(&s->iomem, OBJECT(s), &cs_mem_ops, s, "cs4321",
CS_SIZE);
sysbus_init_mmio(dev, &s->iomem);
sysbus_init_irq(dev, &s->irq);
return 0;
}
static Property cs4231_properties[] = {
{.name = NULL},
};
static void cs4231_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = cs4231_init1;
dc->reset = cs_reset;
dc->vmsd = &vmstate_cs4231;
dc->props = cs4231_properties;
}
static const TypeInfo cs4231_info = {
.name = TYPE_CS4231,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(CSState),
.class_init = cs4231_class_init,
};
static void cs4231_register_types(void)
{
type_register_static(&cs4231_info);
}
type_init(cs4231_register_types)