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authorPeter Maydell2016-10-04 14:48:25 +0200
committerPeter Maydell2016-10-04 14:48:25 +0200
commit6e11eb2d2b96790e647aa4c744ed2ed03a77fbbd (patch)
tree764d96006cedc488328f6c346115d4e2e423bd0e /hw/core/or-irq.c
parentMerge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into st... (diff)
parenttarget-arm: Correctly handle 'sub pc, pc, 1' for ARMv6 (diff)
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20161004' into staging
target-arm queue: * Netduino 2 improvements (SPI, ADC devices) * fix some Mainstone key mappings * vmstateify tsc210x, tsc2005 * virt: add 2.8 machine type * virt: support in-kernel GICv3 ITS * generic-loader device * A64: fix iss_sf decoding in disas_ld_lit * correctly handle 'sub pc, pc, 1' for ARMv6 # gpg: Signature made Tue 04 Oct 2016 13:41:34 BST # gpg: using RSA key 0x3C2525ED14360CDE # gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" # gpg: aka "Peter Maydell <pmaydell@gmail.com>" # gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" # Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE * remotes/pmaydell/tags/pull-target-arm-20161004: (27 commits) target-arm: Correctly handle 'sub pc, pc, 1' for ARMv6 target-arm: A64: Fix decoding of iss_sf in disas_ld_lit cadence_gem: Fix priority queue out of bounds access docs: Add a generic loader explanation document generic-loader: Add a generic loader ARM: Virt: ACPI: Add GIC ITS description in ACPI MADT table ACPI: Add GIC Interrupt Translation Service Structure definition arm/virt: Add ITS to the virt board hw/intc/arm_gicv3_its: Implement support for in-kernel ITS emulation kvm-all: Pass requester ID to MSI routing functions target-arm: move gicv3_class_name from machine to kvm_arm.h hw/intc/arm_gicv3_its: Implement ITS base class hw/intc/arm_gic(v3)_kvm: Initialize gsi routing hw/arm/virt: add 2.8 machine type vmstateify tsc210x vmstateify tsc2005 hw/arm: Fix Integrator/CM initialization mainstone: Add mapping for dot, slash and backspace. mainstone: Fix incorrect key mapping for Enter key. MAINTAINERS: Add Alistair to the maintainers list ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/core/or-irq.c')
-rw-r--r--hw/core/or-irq.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/hw/core/or-irq.c b/hw/core/or-irq.c
new file mode 100644
index 0000000000..1ac090d1a4
--- /dev/null
+++ b/hw/core/or-irq.c
@@ -0,0 +1,107 @@
+/*
+ * QEMU IRQ/GPIO common code.
+ *
+ * Copyright (c) 2016 Alistair Francis <alistair@alistair23.me>.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/or-irq.h"
+
+static void or_irq_handler(void *opaque, int n, int level)
+{
+ qemu_or_irq *s = OR_IRQ(opaque);
+ int or_level = 0;
+ int i;
+
+ s->levels[n] = level;
+
+ for (i = 0; i < s->num_lines; i++) {
+ or_level |= s->levels[i];
+ }
+
+ qemu_set_irq(s->out_irq, or_level);
+}
+
+static void or_irq_reset(DeviceState *dev)
+{
+ qemu_or_irq *s = OR_IRQ(dev);
+ int i;
+
+ for (i = 0; i < MAX_OR_LINES; i++) {
+ s->levels[i] = false;
+ }
+}
+
+static void or_irq_realize(DeviceState *dev, Error **errp)
+{
+ qemu_or_irq *s = OR_IRQ(dev);
+
+ assert(s->num_lines < MAX_OR_LINES);
+
+ qdev_init_gpio_in(dev, or_irq_handler, s->num_lines);
+}
+
+static void or_irq_init(Object *obj)
+{
+ qemu_or_irq *s = OR_IRQ(obj);
+
+ qdev_init_gpio_out(DEVICE(obj), &s->out_irq, 1);
+}
+
+static const VMStateDescription vmstate_or_irq = {
+ .name = TYPE_OR_IRQ,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_BOOL_ARRAY(levels, qemu_or_irq, MAX_OR_LINES),
+ VMSTATE_END_OF_LIST(),
+ }
+};
+
+static Property or_irq_properties[] = {
+ DEFINE_PROP_UINT16("num-lines", qemu_or_irq, num_lines, 1),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void or_irq_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->reset = or_irq_reset;
+ dc->props = or_irq_properties;
+ dc->realize = or_irq_realize;
+ dc->vmsd = &vmstate_or_irq;
+}
+
+static const TypeInfo or_irq_type_info = {
+ .name = TYPE_OR_IRQ,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(qemu_or_irq),
+ .instance_init = or_irq_init,
+ .class_init = or_irq_class_init,
+};
+
+static void or_irq_register_types(void)
+{
+ type_register_static(&or_irq_type_info);
+}
+
+type_init(or_irq_register_types)