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isa: configure serial+parallel by index. 

This patch adds a 'index' property to the isa-parallel and isa-serial
devices.  This can be used to create devices with the default isa irqs
and ioports by simply specifying the index, i.e.

   -device isa-serial,index=1

instead of

   -device isa-serial,iobase=0x2f8,irq=3

for ttyS1 aka com2.  Likewise for parallel ports.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Gerd Hoffmann 2009-10-13 13:38:39 +02:00 committed by Anthony Liguori
parent 844e78ef9c
commit e8ee28fb3e
2 changed files with 36 additions and 13 deletions
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23
hw/parallel.c
View File

@ -80,6 +80,7 @@ struct ParallelState {
typedef struct ISAParallelState {
ISADevice dev;
uint32_t index;
uint32_t iobase;
uint32_t isairq;
ParallelState state;
@ -445,11 +446,14 @@ static void parallel_reset(void *opaque)
s->last_read_offset = ~0U;
}
static const int isa_parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
static int parallel_isa_initfn(ISADevice *dev)
{
static int index;
ISAParallelState *isa = DO_UPCAST(ISAParallelState, dev, dev);
ParallelState *s = &isa->state;
int base = isa->iobase;
int base;
uint8_t dummy;
if (!s->chr) {
@ -457,6 +461,15 @@ static int parallel_isa_initfn(ISADevice *dev)
exit(1);
}
if (isa->index == -1)
isa->index = index;
if (isa->index >= MAX_PARALLEL_PORTS)
return -1;
if (isa->iobase == -1)
isa->iobase = isa_parallel_io[isa->index];
index++;
base = isa->iobase;
isa_init_irq(dev, &s->irq, isa->isairq);
parallel_reset(s);
qemu_register_reset(parallel_reset, s);
@ -483,15 +496,12 @@ static int parallel_isa_initfn(ISADevice *dev)
return 0;
}
static const int isa_parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
ParallelState *parallel_init(int index, CharDriverState *chr)
{
ISADevice *dev;
dev = isa_create("isa-parallel");
qdev_prop_set_uint32(&dev->qdev, "iobase", isa_parallel_io[index]);
qdev_prop_set_uint32(&dev->qdev, "irq", 7);
qdev_prop_set_uint32(&dev->qdev, "index", index);
qdev_prop_set_chr(&dev->qdev, "chardev", chr);
if (qdev_init(&dev->qdev) < 0)
return NULL;
@ -579,7 +589,8 @@ static ISADeviceInfo parallel_isa_info = {
.qdev.size = sizeof(ISAParallelState),
.init = parallel_isa_initfn,
.qdev.props = (Property[]) {
DEFINE_PROP_HEX32("iobase", ISAParallelState, iobase, 0x378),
DEFINE_PROP_HEX32("index", ISAParallelState, index, -1),
DEFINE_PROP_HEX32("iobase", ISAParallelState, iobase, -1),
DEFINE_PROP_UINT32("irq", ISAParallelState, isairq, 7),
DEFINE_PROP_CHR("chardev", ISAParallelState, state.chr),
DEFINE_PROP_END_OF_LIST(),

26
hw/serial.c
View File

@ -148,6 +148,7 @@ struct SerialState {
typedef struct ISASerialState {
ISADevice dev;
uint32_t index;
uint32_t iobase;
uint32_t isairq;
SerialState state;
@ -733,11 +734,25 @@ static void serial_init_core(SerialState *s)
serial_event, s);
}
static const int isa_serial_io[MAX_SERIAL_PORTS] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
static const int isa_serial_irq[MAX_SERIAL_PORTS] = { 4, 3, 4, 3 };
static int serial_isa_initfn(ISADevice *dev)
{
static int index;
ISASerialState *isa = DO_UPCAST(ISASerialState, dev, dev);
SerialState *s = &isa->state;
if (isa->index == -1)
isa->index = index;
if (isa->index >= MAX_SERIAL_PORTS)
return -1;
if (isa->iobase == -1)
isa->iobase = isa_serial_io[isa->index];
if (isa->isairq == -1)
isa->isairq = isa_serial_irq[isa->index];
index++;
s->baudbase = 115200;
isa_init_irq(dev, &s->irq, isa->isairq);
serial_init_core(s);
@ -748,16 +763,12 @@ static int serial_isa_initfn(ISADevice *dev)
return 0;
}
static const int isa_serial_io[MAX_SERIAL_PORTS] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
static const int isa_serial_irq[MAX_SERIAL_PORTS] = { 4, 3, 4, 3 };
SerialState *serial_isa_init(int index, CharDriverState *chr)
{
ISADevice *dev;
dev = isa_create("isa-serial");
qdev_prop_set_uint32(&dev->qdev, "iobase", isa_serial_io[index]);
qdev_prop_set_uint32(&dev->qdev, "irq", isa_serial_irq[index]);
qdev_prop_set_uint32(&dev->qdev, "index", index);
qdev_prop_set_chr(&dev->qdev, "chardev", chr);
if (qdev_init(&dev->qdev) < 0)
return NULL;
@ -886,8 +897,9 @@ static ISADeviceInfo serial_isa_info = {
.qdev.size = sizeof(ISASerialState),
.init = serial_isa_initfn,
.qdev.props = (Property[]) {
DEFINE_PROP_HEX32("iobase", ISASerialState, iobase, 0x3f8),
DEFINE_PROP_UINT32("irq", ISASerialState, isairq, 4),
DEFINE_PROP_HEX32("index", ISASerialState, index, -1),
DEFINE_PROP_HEX32("iobase", ISASerialState, iobase, -1),
DEFINE_PROP_UINT32("irq", ISASerialState, isairq, -1),
DEFINE_PROP_CHR("chardev", ISASerialState, state.chr),
DEFINE_PROP_END_OF_LIST(),
},