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[PATCH 08/13] hw/rtc/mc146818rtc: QOM'ify IRQ number
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH 08/13] hw/rtc/mc146818rtc: QOM'ify IRQ number |
Date: |
Mon, 7 Mar 2022 14:43:48 +0100 |
From: Bernhard Beschow <shentey@gmail.com>
Exposing the IRQ number as a QOM property not only allows it to be
configurable but also to be displayed in HMP:
Before:
(qemu) info qtree
...
dev: mc146818rtc, id ""
gpio-out "" 1
base_year = 0 (0x0)
lost_tick_policy = "discard"
After:
dev: mc146818rtc, id ""
gpio-out "" 1
base_year = 0 (0x0)
irq = 8 (0x8)
lost_tick_policy = "discard"
The reason the IRQ number didn's show up before is that this device does not
call isa_init_irq().
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220301220037.76555-2-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
hw/isa/piix4.c | 2 +-
hw/rtc/mc146818rtc.c | 13 +++++++++++--
include/hw/rtc/mc146818rtc.h | 1 +
3 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/hw/isa/piix4.c b/hw/isa/piix4.c
index f876c71750..fc3c8b3fd1 100644
--- a/hw/isa/piix4.c
+++ b/hw/isa/piix4.c
@@ -216,7 +216,7 @@ static void piix4_realize(PCIDevice *dev, Error **errp)
if (!qdev_realize(DEVICE(&s->rtc), BUS(isa_bus), errp)) {
return;
}
- isa_init_irq(ISA_DEVICE(&s->rtc), &s->rtc.irq, RTC_ISA_IRQ);
+ isa_init_irq(ISA_DEVICE(&s->rtc), &s->rtc.irq, s->rtc.isairq);
}
static void piix4_init(Object *obj)
diff --git a/hw/rtc/mc146818rtc.c b/hw/rtc/mc146818rtc.c
index ac9a60c90e..f235c2ddbe 100644
--- a/hw/rtc/mc146818rtc.c
+++ b/hw/rtc/mc146818rtc.c
@@ -912,6 +912,11 @@ static void rtc_realizefn(DeviceState *dev, Error **errp)
s->base_year = 0;
}
+ if (s->isairq >= ISA_NUM_IRQS) {
+ error_setg(errp, "Maximum value for \"irq\" is: %u", ISA_NUM_IRQS - 1);
+ return;
+ }
+
rtc_set_date_from_host(isadev);
switch (s->lost_tick_policy) {
@@ -957,15 +962,17 @@ ISADevice *mc146818_rtc_init(ISABus *bus, int base_year,
qemu_irq intercept_irq)
{
DeviceState *dev;
ISADevice *isadev;
+ RTCState *s;
isadev = isa_new(TYPE_MC146818_RTC);
dev = DEVICE(isadev);
+ s = MC146818_RTC(isadev);
qdev_prop_set_int32(dev, "base_year", base_year);
isa_realize_and_unref(isadev, bus, &error_fatal);
if (intercept_irq) {
qdev_connect_gpio_out(dev, 0, intercept_irq);
} else {
- isa_connect_gpio_out(isadev, 0, RTC_ISA_IRQ);
+ isa_connect_gpio_out(isadev, 0, s->isairq);
}
object_property_add_alias(qdev_get_machine(), "rtc-time", OBJECT(isadev),
@@ -976,6 +983,7 @@ ISADevice *mc146818_rtc_init(ISABus *bus, int base_year,
qemu_irq intercept_irq)
static Property mc146818rtc_properties[] = {
DEFINE_PROP_INT32("base_year", RTCState, base_year, 1980),
+ DEFINE_PROP_UINT8("irq", RTCState, isairq, RTC_ISA_IRQ),
DEFINE_PROP_LOSTTICKPOLICY("lost_tick_policy", RTCState,
lost_tick_policy, LOST_TICK_POLICY_DISCARD),
DEFINE_PROP_END_OF_LIST(),
@@ -1011,6 +1019,7 @@ static void rtc_reset_hold(Object *obj)
static void rtc_build_aml(ISADevice *isadev, Aml *scope)
{
+ RTCState *s = MC146818_RTC(isadev);
Aml *dev;
Aml *crs;
@@ -1021,7 +1030,7 @@ static void rtc_build_aml(ISADevice *isadev, Aml *scope)
crs = aml_resource_template();
aml_append(crs, aml_io(AML_DECODE16, RTC_ISA_BASE, RTC_ISA_BASE,
0x01, 0x08));
- aml_append(crs, aml_irq_no_flags(RTC_ISA_IRQ));
+ aml_append(crs, aml_irq_no_flags(s->isairq));
dev = aml_device("RTC");
aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0B00")));
diff --git a/include/hw/rtc/mc146818rtc.h b/include/hw/rtc/mc146818rtc.h
index 5b45b22924..deef93f89a 100644
--- a/include/hw/rtc/mc146818rtc.h
+++ b/include/hw/rtc/mc146818rtc.h
@@ -25,6 +25,7 @@ struct RTCState {
MemoryRegion coalesced_io;
uint8_t cmos_data[128];
uint8_t cmos_index;
+ uint8_t isairq;
int32_t base_year;
uint64_t base_rtc;
uint64_t last_update;
--
2.34.1
- [PATCH 03/13] hw/isa/piix4: Resolve redundant i8259[] attribute, (continued)
- [PATCH 03/13] hw/isa/piix4: Resolve redundant i8259[] attribute, Philippe Mathieu-Daudé, 2022/03/07
- [PATCH 04/13] hw/isa/piix4: Pass PIIX4State as opaque parameter for piix4_set_irq(), Philippe Mathieu-Daudé, 2022/03/07
- [PATCH 05/13] hw/isa/piix4: Resolve global instance variable, Philippe Mathieu-Daudé, 2022/03/07
- [PATCH 06/13] hw/isa/piix4: Replace some magic IRQ constants, Philippe Mathieu-Daudé, 2022/03/07
- [PATCH 07/13] hw/mips/gt64xxx_pci: Resolve gt64120_register(), Philippe Mathieu-Daudé, 2022/03/07
- [PATCH 08/13] hw/rtc/mc146818rtc: QOM'ify IRQ number,
Philippe Mathieu-Daudé <=
- [PATCH 09/13] hw/rtc/m48t59-isa: QOM'ify IRQ number, Philippe Mathieu-Daudé, 2022/03/07
- [PATCH 10/13] hw/input/pckbd: QOM'ify IRQ numbers, Philippe Mathieu-Daudé, 2022/03/07
- [PATCH 11/13] hw/isa/isa-bus: Remove isabus_dev_print(), Philippe Mathieu-Daudé, 2022/03/07
- [PATCH 12/13] hw/isa: Drop unused attributes from ISADevice, Philippe Mathieu-Daudé, 2022/03/07
- [PATCH 13/13] hw/isa: Inline and remove one-line isa_init_irq(), Philippe Mathieu-Daudé, 2022/03/07