aboutsummaryrefslogtreecommitdiff
path: root/hw/parallel.c
diff options
context:
space:
mode:
authorGerd Hoffmann <kraxel@redhat.com>2009-10-13 13:38:39 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2009-10-27 12:28:42 -0500
commite8ee28fb3e6cc2c4f5ec10d0aec9ff8ae9469e93 (patch)
tree16eace0c597cf768456f8475799c43b6fdfe8e81 /hw/parallel.c
parent844e78ef9c6102cc3e33e4aa00efc8abdf0d8dde (diff)
downloadqemu-e8ee28fb3e6cc2c4f5ec10d0aec9ff8ae9469e93.zip
qemu-e8ee28fb3e6cc2c4f5ec10d0aec9ff8ae9469e93.tar.gz
qemu-e8ee28fb3e6cc2c4f5ec10d0aec9ff8ae9469e93.tar.bz2
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>
Diffstat (limited to 'hw/parallel.c')
-rw-r--r--hw/parallel.c23
1 files changed, 17 insertions, 6 deletions
diff --git a/hw/parallel.c b/hw/parallel.c
index 92eecb1..79fa8f6 100644
--- a/hw/parallel.c
+++ b/hw/parallel.c
@@ -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(),