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authorGerd Hoffmann <kraxel@redhat.com>2009-07-15 13:43:31 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2009-07-16 17:28:51 -0500
commitee6847d19be16c789b8bd4e553b7cd6701ba1245 (patch)
tree41845b3b1e8740ce97daf0582e124c6b6e0a6873 /hw/xilinx_timer.c
parentf114784f69ec3b9af342148025de14dbd1b429a5 (diff)
qdev: rework device properties.
This patch is a major overhaul of the device properties. The properties are saved directly in the device state struct now, the linked list of property values is gone. Advantages: * We don't have to maintain the list with the property values. * The value in the property list and the value actually used by the device can't go out of sync any more (used to happen for the pci.devfn == -1 case) because there is only one place where the value is stored. * A record describing the property is required now, you can't set random properties any more. There are bus-specific and device-specific properties. The former should be used for properties common to all bus drivers. Typical use case is bus addressing, i.e. pci.devfn and i2c.address. Properties have a PropertyInfo struct attached with name, size and function pointers to parse and print properties. A few common property types have PropertyInfos defined in qdev-properties.c. Drivers are free to implement their own very special property parsers if needed. Properties can have default values. If unset they are zero-filled. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/xilinx_timer.c')
-rw-r--r--hw/xilinx_timer.c32
1 files changed, 25 insertions, 7 deletions
diff --git a/hw/xilinx_timer.c b/hw/xilinx_timer.c
index a64ad2d80b..efb6a04fb5 100644
--- a/hw/xilinx_timer.c
+++ b/hw/xilinx_timer.c
@@ -61,7 +61,8 @@ struct timerblock
{
SysBusDevice busdev;
qemu_irq irq;
- unsigned int nr_timers;
+ uint32_t nr_timers;
+ uint32_t freq_hz;
struct xlx_timer *timers;
};
@@ -192,14 +193,12 @@ static void xilinx_timer_init(SysBusDevice *dev)
{
struct timerblock *t = FROM_SYSBUS(typeof (*t), dev);
unsigned int i;
- int timer_regs, freq_hz;
+ int timer_regs;
/* All timers share a single irq line. */
sysbus_init_irq(dev, &t->irq);
/* Init all the ptimers. */
- freq_hz = qdev_get_prop_int(&dev->qdev, "frequency", 2);
- t->nr_timers = qdev_get_prop_int(&dev->qdev, "nr-timers", 2);
t->timers = qemu_mallocz(sizeof t->timers[0] * t->nr_timers);
for (i = 0; i < t->nr_timers; i++) {
struct xlx_timer *xt = &t->timers[i];
@@ -208,17 +207,36 @@ static void xilinx_timer_init(SysBusDevice *dev)
xt->nr = i;
xt->bh = qemu_bh_new(timer_hit, xt);
xt->ptimer = ptimer_init(xt->bh);
- ptimer_set_freq(xt->ptimer, freq_hz);
+ ptimer_set_freq(xt->ptimer, t->freq_hz);
}
timer_regs = cpu_register_io_memory(timer_read, timer_write, t);
sysbus_init_mmio(dev, R_MAX * 4 * t->nr_timers, timer_regs);
}
+static SysBusDeviceInfo xilinx_timer_info = {
+ .init = xilinx_timer_init,
+ .qdev.name = "xilinx,timer",
+ .qdev.size = sizeof(struct timerblock),
+ .qdev.props = (Property[]) {
+ {
+ .name = "frequency",
+ .info = &qdev_prop_uint32,
+ .offset = offsetof(struct timerblock, freq_hz),
+ .defval = (uint32_t[]) { 2 },
+ },{
+ .name = "nr-timers",
+ .info = &qdev_prop_uint32,
+ .offset = offsetof(struct timerblock, nr_timers),
+ .defval = (uint32_t[]) { 2 },
+ },
+ {/* end of list */}
+ }
+};
+
static void xilinx_timer_register(void)
{
- sysbus_register_dev("xilinx,timer", sizeof (struct timerblock),
- xilinx_timer_init);
+ sysbus_register_withprop(&xilinx_timer_info);
}
device_init(xilinx_timer_register)