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hw/char: QOM'ify lm32_uart.c

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* Drop the old SysBus init function and use instance_init
* Call qemu_chr_add_handlers in the realize callback
* Use qdev chardev prop instead of qemu_char_get_next_serial
* Add lm32_uart_create function to create lm32 uart device

Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Message-Id: <1464158344-12266-5-git-send-email-zxq_yx_007@163.com>
Tested-by: Michael Walle <michael@walle.cc>
Acked-by: Michael Walle <michael@walle.cc>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
xiaoqiang zhao 2016-05-25 14:39:03 +08:00 committed by Paolo Bonzini
parent c2ddaa62b6
commit 7aaefcaf66
3 changed files with 35 additions and 13 deletions
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28
hw/char/lm32_uart.c
View File

@ -249,23 +249,25 @@ static void uart_reset(DeviceState *d)
s->regs[R_LSR] = LSR_THRE | LSR_TEMT;
}
static int lm32_uart_init(SysBusDevice *dev)
static void lm32_uart_init(Object *obj)
{
LM32UartState *s = LM32_UART(dev);
LM32UartState *s = LM32_UART(obj);
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
sysbus_init_irq(dev, &s->irq);
memory_region_init_io(&s->iomem, OBJECT(s), &uart_ops, s,
memory_region_init_io(&s->iomem, obj, &uart_ops, s,
"uart", R_MAX * 4);
sysbus_init_mmio(dev, &s->iomem);
}
static void lm32_uart_realize(DeviceState *dev, Error **errp)
{
LM32UartState *s = LM32_UART(dev);
/* FIXME use a qdev chardev prop instead of qemu_char_get_next_serial() */
s->chr = qemu_char_get_next_serial();
if (s->chr) {
qemu_chr_add_handlers(s->chr, uart_can_rx, uart_rx, uart_event, s);
}
return 0;
}
static const VMStateDescription vmstate_lm32_uart = {
@ -278,22 +280,26 @@ static const VMStateDescription vmstate_lm32_uart = {
}
};
static Property lm32_uart_properties[] = {
DEFINE_PROP_CHR("chardev", LM32UartState, chr),
DEFINE_PROP_END_OF_LIST(),
};
static void lm32_uart_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = lm32_uart_init;
dc->reset = uart_reset;
dc->vmsd = &vmstate_lm32_uart;
/* Reason: init() method uses qemu_char_get_next_serial() */
dc->cannot_instantiate_with_device_add_yet = true;
dc->props = lm32_uart_properties;
dc->realize = lm32_uart_realize;
}
static const TypeInfo lm32_uart_info = {
.name = TYPE_LM32_UART,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(LM32UartState),
.instance_init = lm32_uart_init,
.class_init = lm32_uart_class_init,
};

16
hw/lm32/lm32.h
View File

@ -27,4 +27,20 @@ static inline DeviceState *lm32_juart_init(CharDriverState *chr)
return dev;
}
static inline DeviceState *lm32_uart_create(hwaddr addr,
qemu_irq irq,
CharDriverState *chr)
{
DeviceState *dev;
SysBusDevice *s;
dev = qdev_create(NULL, "lm32-uart");
s = SYS_BUS_DEVICE(dev);
qdev_prop_set_chr(dev, "chardev", chr);
qdev_init_nofail(dev);
sysbus_mmio_map(s, 0, addr);
sysbus_connect_irq(s, 0, irq);
return dev;
}
#endif

4
hw/lm32/lm32_boards.c
View File

@ -132,7 +132,7 @@ static void lm32_evr_init(MachineState *machine)
irq[i] = qdev_get_gpio_in(env->pic_state, i);
}
sysbus_create_simple("lm32-uart", uart0_base, irq[uart0_irq]);
lm32_uart_create(uart0_base, irq[uart0_irq], serial_hds[0]);
sysbus_create_simple("lm32-timer", timer0_base, irq[timer0_irq]);
sysbus_create_simple("lm32-timer", timer1_base, irq[timer1_irq]);
@ -233,7 +233,7 @@ static void lm32_uclinux_init(MachineState *machine)
irq[i] = qdev_get_gpio_in(env->pic_state, i);
}
sysbus_create_simple("lm32-uart", uart0_base, irq[uart0_irq]);
lm32_uart_create(uart0_base, irq[uart0_irq], serial_hds[0]);
sysbus_create_simple("lm32-timer", timer0_base, irq[timer0_irq]);
sysbus_create_simple("lm32-timer", timer1_base, irq[timer1_irq]);
sysbus_create_simple("lm32-timer", timer2_base, irq[timer2_irq]);