diff options
Diffstat (limited to 'hw/m68k/q800.c')
| -rw-r--r-- | hw/m68k/q800.c | 57 |
1 files changed, 41 insertions, 16 deletions
diff --git a/hw/m68k/q800.c b/hw/m68k/q800.c index 0093872..7a8de08 100644 --- a/hw/m68k/q800.c +++ b/hw/m68k/q800.c @@ -101,6 +101,7 @@ struct GLUEState { M68kCPU *cpu; uint8_t ipr; uint8_t auxmode; + qemu_irq irqs[1]; }; #define GLUE_IRQ_IN_VIA1 0 @@ -108,27 +109,40 @@ struct GLUEState { #define GLUE_IRQ_IN_SONIC 2 #define GLUE_IRQ_IN_ESCC 3 +#define GLUE_IRQ_NUBUS_9 0 + static void GLUE_set_irq(void *opaque, int irq, int level) { GLUEState *s = opaque; int i; - switch (irq) { - case GLUE_IRQ_IN_VIA1: - irq = 5; - break; - - case GLUE_IRQ_IN_VIA2: - irq = 1; - break; - - case GLUE_IRQ_IN_SONIC: - irq = 2; - break; - - case GLUE_IRQ_IN_ESCC: - irq = 3; - break; + if (s->auxmode) { + /* Classic mode */ + switch (irq) { + case GLUE_IRQ_IN_SONIC: + /* Route to VIA2 instead */ + qemu_set_irq(s->irqs[GLUE_IRQ_NUBUS_9], level); + return; + } + } else { + /* A/UX mode */ + switch (irq) { + case GLUE_IRQ_IN_VIA1: + irq = 5; + break; + + case GLUE_IRQ_IN_VIA2: + irq = 1; + break; + + case GLUE_IRQ_IN_SONIC: + irq = 2; + break; + + case GLUE_IRQ_IN_ESCC: + irq = 3; + break; + } } if (level) { @@ -186,9 +200,12 @@ static Property glue_properties[] = { static void glue_init(Object *obj) { DeviceState *dev = DEVICE(obj); + GLUEState *s = GLUE(dev); qdev_init_gpio_in(dev, GLUE_set_irq, 8); qdev_init_gpio_in_named(dev, glue_auxmode_set_irq, "auxmode", 1); + + qdev_init_gpio_out(dev, s->irqs, 1); } static void glue_class_init(ObjectClass *klass, void *data) @@ -454,6 +471,14 @@ static void q800_init(MachineState *machine) VIA2_NUBUS_IRQ_9 + i)); } + /* + * Since the framebuffer in slot 0x9 uses a separate IRQ, wire the unused + * IRQ via GLUE for use by SONIC Ethernet in classic mode + */ + qdev_connect_gpio_out(glue, GLUE_IRQ_NUBUS_9, + qdev_get_gpio_in_named(via2_dev, "nubus-irq", + VIA2_NUBUS_IRQ_9)); + nubus = &NUBUS_BRIDGE(dev)->bus; /* framebuffer in nubus slot #9 */ |