[PULL 16/17] vt82c686: Add a method to VIA_ISA to raise ISA interrupts

[Philippe Mathieu-Daudé]

From: BALATON Zoltan <balaton@eik.bme.hu>

Other functions in the VT82xx chips need to raise ISA interrupts. Keep
a reference to them in the device state and add via_isa_set_irq() to
allow setting their state.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: 
<778c04dc2c8affac060b8edf9e8d7dab3c3e04eb.1634259980.git.balaton@eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 include/hw/isa/vt82c686.h |  4 ++++
 hw/isa/vt82c686.c         | 10 +++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/include/hw/isa/vt82c686.h b/include/hw/isa/vt82c686.h
index 0f01aaa4710..56ac141be38 100644
--- a/include/hw/isa/vt82c686.h
+++ b/include/hw/isa/vt82c686.h
@@ -1,6 +1,8 @@
 #ifndef HW_VT82C686_H
 #define HW_VT82C686_H
 
+#include "hw/pci/pci.h"
+
 #define TYPE_VT82C686B_ISA "vt82c686b-isa"
 #define TYPE_VT82C686B_PM "vt82c686b-pm"
 #define TYPE_VT8231_ISA "vt8231-isa"
@@ -8,4 +10,6 @@
 #define TYPE_VIA_AC97 "via-ac97"
 #define TYPE_VIA_MC97 "via-mc97"
 
+void via_isa_set_irq(PCIDevice *d, int n, int level);
+
 #endif
diff --git a/hw/isa/vt82c686.c b/hw/isa/vt82c686.c
index 5b41539f2cd..8f656251b8d 100644
--- a/hw/isa/vt82c686.c
+++ b/hw/isa/vt82c686.c
@@ -542,6 +542,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(ViaISAState, VIA_ISA)
 struct ViaISAState {
     PCIDevice dev;
     qemu_irq cpu_intr;
+    qemu_irq *isa_irqs;
     ISABus *isa_bus;
     ViaSuperIOState *via_sio;
 };
@@ -567,6 +568,12 @@ static const TypeInfo via_isa_info = {
     },
 };
 
+void via_isa_set_irq(PCIDevice *d, int n, int level)
+{
+    ViaISAState *s = VIA_ISA(d);
+    qemu_set_irq(s->isa_irqs[n], level);
+}
+
 static void via_isa_request_i8259_irq(void *opaque, int irq, int level)
 {
     ViaISAState *s = opaque;
@@ -584,7 +591,8 @@ static void via_isa_realize(PCIDevice *d, Error **errp)
     isa_irq = qemu_allocate_irqs(via_isa_request_i8259_irq, s, 1);
     s->isa_bus = isa_bus_new(dev, get_system_memory(), pci_address_space_io(d),
                           &error_fatal);
-    isa_bus_irqs(s->isa_bus, i8259_init(s->isa_bus, *isa_irq));
+    s->isa_irqs = i8259_init(s->isa_bus, *isa_irq);
+    isa_bus_irqs(s->isa_bus, s->isa_irqs);
     i8254_pit_init(s->isa_bus, 0x40, 0, NULL);
     i8257_dma_init(s->isa_bus, 0);
     mc146818_rtc_init(s->isa_bus, 2000, NULL);
-- 
2.31.1