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-rw-r--r--hw/syborg_interrupt.c233
1 files changed, 0 insertions, 233 deletions
diff --git a/hw/syborg_interrupt.c b/hw/syborg_interrupt.c
deleted file mode 100644
index 93e81c8660..0000000000
--- a/hw/syborg_interrupt.c
+++ /dev/null
@@ -1,233 +0,0 @@
-/*
- * Syborg interrupt controller.
- *
- * Copyright (c) 2008 CodeSourcery
- *
- * 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 "sysbus.h"
-#include "syborg.h"
-
-//#define DEBUG_SYBORG_INT
-
-#ifdef DEBUG_SYBORG_INT
-#define DPRINTF(fmt, ...) \
-do { printf("syborg_int: " fmt , ## __VA_ARGS__); } while (0)
-#define BADF(fmt, ...) \
-do { fprintf(stderr, "syborg_int: error: " fmt , ## __VA_ARGS__); \
- exit(1);} while (0)
-#else
-#define DPRINTF(fmt, ...) do {} while(0)
-#define BADF(fmt, ...) \
-do { fprintf(stderr, "syborg_int: error: " fmt , ## __VA_ARGS__);} while (0)
-#endif
-enum {
- INT_ID = 0,
- INT_STATUS = 1, /* number of pending interrupts */
- INT_CURRENT = 2, /* next interrupt to be serviced */
- INT_DISABLE_ALL = 3,
- INT_DISABLE = 4,
- INT_ENABLE = 5,
- INT_TOTAL = 6
-};
-
-typedef struct {
- unsigned level:1;
- unsigned enabled:1;
-} syborg_int_flags;
-
-typedef struct {
- SysBusDevice busdev;
- MemoryRegion iomem;
- int pending_count;
- uint32_t num_irqs;
- syborg_int_flags *flags;
- qemu_irq parent_irq;
-} SyborgIntState;
-
-static void syborg_int_update(SyborgIntState *s)
-{
- DPRINTF("pending %d\n", s->pending_count);
- qemu_set_irq(s->parent_irq, s->pending_count > 0);
-}
-
-static void syborg_int_set_irq(void *opaque, int irq, int level)
-{
- SyborgIntState *s = (SyborgIntState *)opaque;
-
- if (s->flags[irq].level == level)
- return;
-
- s->flags[irq].level = level;
- if (s->flags[irq].enabled) {
- if (level)
- s->pending_count++;
- else
- s->pending_count--;
- syborg_int_update(s);
- }
-}
-
-static uint64_t syborg_int_read(void *opaque, target_phys_addr_t offset,
- unsigned size)
-{
- SyborgIntState *s = (SyborgIntState *)opaque;
- int i;
-
- offset &= 0xfff;
- switch (offset >> 2) {
- case INT_ID:
- return SYBORG_ID_INT;
- case INT_STATUS:
- DPRINTF("read status=%d\n", s->pending_count);
- return s->pending_count;
-
- case INT_CURRENT:
- for (i = 0; i < s->num_irqs; i++) {
- if (s->flags[i].level & s->flags[i].enabled) {
- DPRINTF("read current=%d\n", i);
- return i;
- }
- }
- DPRINTF("read current=none\n");
- return 0xffffffffu;
-
- default:
- cpu_abort(cpu_single_env, "syborg_int_read: Bad offset %x\n",
- (int)offset);
- return 0;
- }
-}
-
-static void syborg_int_write(void *opaque, target_phys_addr_t offset,
- uint64_t value, unsigned size)
-{
- SyborgIntState *s = (SyborgIntState *)opaque;
- int i;
- offset &= 0xfff;
-
- DPRINTF("syborg_int_write offset=%d val=%d\n", (int)offset, (int)value);
- switch (offset >> 2) {
- case INT_DISABLE_ALL:
- s->pending_count = 0;
- for (i = 0; i < s->num_irqs; i++)
- s->flags[i].enabled = 0;
- break;
-
- case INT_DISABLE:
- if (value >= s->num_irqs)
- break;
- if (s->flags[value].enabled) {
- if (s->flags[value].enabled)
- s->pending_count--;
- s->flags[value].enabled = 0;
- }
- break;
-
- case INT_ENABLE:
- if (value >= s->num_irqs)
- break;
- if (!(s->flags[value].enabled)) {
- if(s->flags[value].level)
- s->pending_count++;
- s->flags[value].enabled = 1;
- }
- break;
-
- default:
- cpu_abort(cpu_single_env, "syborg_int_write: Bad offset %x\n",
- (int)offset);
- return;
- }
- syborg_int_update(s);
-}
-
-static const MemoryRegionOps syborg_int_ops = {
- .read = syborg_int_read,
- .write = syborg_int_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static void syborg_int_save(QEMUFile *f, void *opaque)
-{
- SyborgIntState *s = (SyborgIntState *)opaque;
- int i;
-
- qemu_put_be32(f, s->num_irqs);
- qemu_put_be32(f, s->pending_count);
- for (i = 0; i < s->num_irqs; i++) {
- qemu_put_be32(f, s->flags[i].enabled
- | ((unsigned)s->flags[i].level << 1));
- }
-}
-
-static int syborg_int_load(QEMUFile *f, void *opaque, int version_id)
-{
- SyborgIntState *s = (SyborgIntState *)opaque;
- uint32_t val;
- int i;
-
- if (version_id != 1)
- return -EINVAL;
-
- val = qemu_get_be32(f);
- if (val != s->num_irqs)
- return -EINVAL;
- s->pending_count = qemu_get_be32(f);
- for (i = 0; i < s->num_irqs; i++) {
- val = qemu_get_be32(f);
- s->flags[i].enabled = val & 1;
- s->flags[i].level = (val >> 1) & 1;
- }
- return 0;
-}
-
-static int syborg_int_init(SysBusDevice *dev)
-{
- SyborgIntState *s = FROM_SYSBUS(SyborgIntState, dev);
-
- sysbus_init_irq(dev, &s->parent_irq);
- qdev_init_gpio_in(&dev->qdev, syborg_int_set_irq, s->num_irqs);
- memory_region_init_io(&s->iomem, &syborg_int_ops, s,
- "interrupt", 0x1000);
- sysbus_init_mmio(dev, &s->iomem);
- s->flags = g_malloc0(s->num_irqs * sizeof(syborg_int_flags));
-
- register_savevm(&dev->qdev, "syborg_int", -1, 1, syborg_int_save,
- syborg_int_load, s);
- return 0;
-}
-
-static SysBusDeviceInfo syborg_int_info = {
- .init = syborg_int_init,
- .qdev.name = "syborg,interrupt",
- .qdev.size = sizeof(SyborgIntState),
- .qdev.props = (Property[]) {
- DEFINE_PROP_UINT32("num-interrupts", SyborgIntState, num_irqs, 64),
- DEFINE_PROP_END_OF_LIST(),
- }
-};
-
-static void syborg_interrupt_register_devices(void)
-{
- sysbus_register_withprop(&syborg_int_info);
-}
-
-device_init(syborg_interrupt_register_devices)
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-29 04:02:15 +0000