aboutsummaryrefslogtreecommitdiff
path: root/hw/intc/puv3_intc.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/intc/puv3_intc.c')
-rw-r--r--hw/intc/puv3_intc.c147
1 files changed, 0 insertions, 147 deletions
diff --git a/hw/intc/puv3_intc.c b/hw/intc/puv3_intc.c
deleted file mode 100644
index 65226f5e7c..0000000000
--- a/hw/intc/puv3_intc.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * INTC device simulation in PKUnity SoC
- *
- * Copyright (C) 2010-2012 Guan Xuetao
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation, or any later version.
- * See the COPYING file in the top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "hw/irq.h"
-#include "hw/sysbus.h"
-#include "qom/object.h"
-
-#undef DEBUG_PUV3
-#include "hw/unicore32/puv3.h"
-#include "qemu/module.h"
-#include "qemu/log.h"
-
-#define TYPE_PUV3_INTC "puv3_intc"
-OBJECT_DECLARE_SIMPLE_TYPE(PUV3INTCState, PUV3_INTC)
-
-struct PUV3INTCState {
- SysBusDevice parent_obj;
-
- MemoryRegion iomem;
- qemu_irq parent_irq;
-
- uint32_t reg_ICMR;
- uint32_t reg_ICPR;
-};
-
-/* Update interrupt status after enabled or pending bits have been changed. */
-static void puv3_intc_update(PUV3INTCState *s)
-{
- if (s->reg_ICMR & s->reg_ICPR) {
- qemu_irq_raise(s->parent_irq);
- } else {
- qemu_irq_lower(s->parent_irq);
- }
-}
-
-/* Process a change in an external INTC input. */
-static void puv3_intc_handler(void *opaque, int irq, int level)
-{
- PUV3INTCState *s = opaque;
-
- DPRINTF("irq 0x%x, level 0x%x\n", irq, level);
- if (level) {
- s->reg_ICPR |= (1 << irq);
- } else {
- s->reg_ICPR &= ~(1 << irq);
- }
- puv3_intc_update(s);
-}
-
-static uint64_t puv3_intc_read(void *opaque, hwaddr offset,
- unsigned size)
-{
- PUV3INTCState *s = opaque;
- uint32_t ret = 0;
-
- switch (offset) {
- case 0x04: /* INTC_ICMR */
- ret = s->reg_ICMR;
- break;
- case 0x0c: /* INTC_ICIP */
- ret = s->reg_ICPR; /* the same value with ICPR */
- break;
- default:
- qemu_log_mask(LOG_GUEST_ERROR,
- "%s: Bad read offset 0x%"HWADDR_PRIx"\n",
- __func__, offset);
- }
- DPRINTF("offset 0x%x, value 0x%x\n", offset, ret);
- return ret;
-}
-
-static void puv3_intc_write(void *opaque, hwaddr offset,
- uint64_t value, unsigned size)
-{
- PUV3INTCState *s = opaque;
-
- DPRINTF("offset 0x%x, value 0x%x\n", offset, value);
- switch (offset) {
- case 0x00: /* INTC_ICLR */
- case 0x14: /* INTC_ICCR */
- break;
- case 0x04: /* INTC_ICMR */
- s->reg_ICMR = value;
- break;
- default:
- qemu_log_mask(LOG_GUEST_ERROR,
- "%s: Bad write offset 0x%"HWADDR_PRIx"\n",
- __func__, offset);
- return;
- }
- puv3_intc_update(s);
-}
-
-static const MemoryRegionOps puv3_intc_ops = {
- .read = puv3_intc_read,
- .write = puv3_intc_write,
- .impl = {
- .min_access_size = 4,
- .max_access_size = 4,
- },
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static void puv3_intc_realize(DeviceState *dev, Error **errp)
-{
- PUV3INTCState *s = PUV3_INTC(dev);
- SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
-
- qdev_init_gpio_in(dev, puv3_intc_handler, PUV3_IRQS_NR);
- sysbus_init_irq(sbd, &s->parent_irq);
-
- s->reg_ICMR = 0;
- s->reg_ICPR = 0;
-
- memory_region_init_io(&s->iomem, OBJECT(s), &puv3_intc_ops, s, "puv3_intc",
- PUV3_REGS_OFFSET);
- sysbus_init_mmio(sbd, &s->iomem);
-}
-
-static void puv3_intc_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- dc->realize = puv3_intc_realize;
-}
-
-static const TypeInfo puv3_intc_info = {
- .name = TYPE_PUV3_INTC,
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(PUV3INTCState),
- .class_init = puv3_intc_class_init,
-};
-
-static void puv3_intc_register_type(void)
-{
- type_register_static(&puv3_intc_info);
-}
-
-type_init(puv3_intc_register_type)