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next-cube: use named gpio to set RTC data bit in scr2

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This is in preparation for moving NeXTRTC to its own separate device.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Message-ID: <20241222130012.1013374-23-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
This commit is contained in:
Mark Cave-Ayland 2024-12-22 13:00:01 +00:00 • committed by Thomas Huth
parent bbcaced2bf
commit ccbc8fa3f9
1 changed files with 21 additions and 4 deletions
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25
hw/m68k/next-cube.c
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@ -240,10 +240,13 @@ static void next_scr2_rtc_update(NeXTPC *s)
((scr2_2 & SCR2_RTDATA) ? 1 : 0); ((scr2_2 & SCR2_RTDATA) ? 1 : 0);
} else { } else {
/* Shift out value to read */ /* Shift out value to read */
qemu_irq rtc_data_in_irq = qdev_get_gpio_in_named(
DEVICE(s), "pc-rtc-data-in", 0);
if (rtc->retval & (0x80 >> (rtc->phase - 8))) { if (rtc->retval & (0x80 >> (rtc->phase - 8))) {
scr2_2 |= SCR2_RTDATA; qemu_irq_raise(rtc_data_in_irq);
} else { } else {
scr2_2 &= ~SCR2_RTDATA; qemu_irq_lower(rtc_data_in_irq);
} }
} }
} }
@ -270,8 +273,6 @@ static void next_scr2_rtc_update(NeXTPC *s)
rtc->command = 0; rtc->command = 0;
rtc->value = 0; rtc->value = 0;
} }
s->scr2 = deposit32(s->scr2, 8, 8, scr2_2);
} }
static uint64_t next_mmio_read(void *opaque, hwaddr addr, unsigned size) static uint64_t next_mmio_read(void *opaque, hwaddr addr, unsigned size)
@ -1001,6 +1002,20 @@ static const MemoryRegionOps next_dummy_en_ops = {
.endianness = DEVICE_BIG_ENDIAN, .endianness = DEVICE_BIG_ENDIAN,
}; };
static void next_pc_rtc_data_in_irq(void *opaque, int n, int level)
{
NeXTPC *s = NEXT_PC(opaque);
uint8_t scr2_2 = extract32(s->scr2, 8, 8);
if (level) {
scr2_2 |= SCR2_RTDATA;
} else {
scr2_2 &= ~SCR2_RTDATA;
}
s->scr2 = deposit32(s->scr2, 8, 8, scr2_2);
}
static void next_pc_reset_hold(Object *obj, ResetType type) static void next_pc_reset_hold(Object *obj, ResetType type)
{ {
NeXTPC *s = NEXT_PC(obj); NeXTPC *s = NEXT_PC(obj);
@ -1087,6 +1102,8 @@ static void next_pc_init(Object *obj)
sysbus_init_mmio(sbd, &s->timer_mem); sysbus_init_mmio(sbd, &s->timer_mem);
s->rtc_power_irq = qdev_get_gpio_in(DEVICE(obj), NEXT_PWR_I); s->rtc_power_irq = qdev_get_gpio_in(DEVICE(obj), NEXT_PWR_I);
qdev_init_gpio_in_named(DEVICE(obj), next_pc_rtc_data_in_irq,
"pc-rtc-data-in", 1);
} }
/* /*