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path: root/hw/misc/macio/gpio.c
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Diffstat (limited to 'hw/misc/macio/gpio.c')
-rw-r--r--hw/misc/macio/gpio.c27
1 files changed, 16 insertions, 11 deletions
diff --git a/hw/misc/macio/gpio.c b/hw/misc/macio/gpio.c
index 5495637..990551f 100644
--- a/hw/misc/macio/gpio.c
+++ b/hw/misc/macio/gpio.c
@@ -34,6 +34,11 @@
#include "qemu/module.h"
#include "trace.h"
+enum MacioGPIORegisterBits {
+ OUT_DATA = 1,
+ IN_DATA = 2,
+ OUT_ENABLE = 4,
+};
void macio_set_gpio(MacIOGPIOState *s, uint32_t gpio, bool state)
{
@@ -41,14 +46,14 @@ void macio_set_gpio(MacIOGPIOState *s, uint32_t gpio, bool state)
trace_macio_set_gpio(gpio, state);
- if (s->gpio_regs[gpio] & 4) {
+ if (s->gpio_regs[gpio] & OUT_ENABLE) {
qemu_log_mask(LOG_GUEST_ERROR,
"GPIO: Setting GPIO %d while it's an output\n", gpio);
}
- new_reg = s->gpio_regs[gpio] & ~2;
+ new_reg = s->gpio_regs[gpio] & ~IN_DATA;
if (state) {
- new_reg |= 2;
+ new_reg |= IN_DATA;
}
if (new_reg == s->gpio_regs[gpio]) {
@@ -107,12 +112,12 @@ static void macio_gpio_write(void *opaque, hwaddr addr, uint64_t value,
addr -= 8;
if (addr < 36) {
- value &= ~2;
+ value &= ~IN_DATA;
- if (value & 4) {
- ibit = (value & 1) << 1;
+ if (value & OUT_ENABLE) {
+ ibit = (value & OUT_DATA) << 1;
} else {
- ibit = s->gpio_regs[addr] & 2;
+ ibit = s->gpio_regs[addr] & IN_DATA;
}
s->gpio_regs[addr] = value | ibit;
@@ -135,7 +140,7 @@ static uint64_t macio_gpio_read(void *opaque, hwaddr addr, unsigned size)
}
}
- trace_macio_gpio_write(addr, val);
+ trace_macio_gpio_read(addr, val);
return val;
}
@@ -189,12 +194,12 @@ static void macio_gpio_nmi(NMIState *n, int cpu_index, Error **errp)
macio_set_gpio(MACIO_GPIO(n), 9, false);
}
-static void macio_gpio_class_init(ObjectClass *oc, void *data)
+static void macio_gpio_class_init(ObjectClass *oc, const void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
NMIClass *nc = NMI_CLASS(oc);
- dc->reset = macio_gpio_reset;
+ device_class_set_legacy_reset(dc, macio_gpio_reset);
dc->vmsd = &vmstate_macio_gpio;
nc->nmi_monitor_handler = macio_gpio_nmi;
}
@@ -205,7 +210,7 @@ static const TypeInfo macio_gpio_init_info = {
.instance_size = sizeof(MacIOGPIOState),
.instance_init = macio_gpio_init,
.class_init = macio_gpio_class_init,
- .interfaces = (InterfaceInfo[]) {
+ .interfaces = (const InterfaceInfo[]) {
{ TYPE_NMI },
{ }
},