13 #include "cpu.h"
17 #include "hw/qdev-properties.h"
20 #define TYPE_MCF_INTC "mcf-intc"
32     M68kCPU *cpu;  member
43     active = (s->ipr | s->ifr) & s->enabled & ~s->imr;  in mcf_intc_update()
48             if ((active & 1) != 0 && s->icr[i] >= best_level) {  in mcf_intc_update()
49                 best_level = s->icr[i];  in mcf_intc_update()
55     s->active_vector = ((best == 64) ? 24 : (best + 64));  in mcf_intc_update()
56     m68k_set_irq_level(s->cpu, best_level, s->active_vector);  in mcf_intc_update()
62     int offset;  in mcf_intc_read()  local
64     offset = addr & 0xff;  in mcf_intc_read()
65     if (offset >= 0x40 && offset < 0x80) {  in mcf_intc_read()
66         return s->icr[offset - 0x40];  in mcf_intc_read()
68     switch (offset) {  in mcf_intc_read()
70         return (uint32_t)(s->ipr >> 32);  in mcf_intc_read()
72         return (uint32_t)s->ipr;  in mcf_intc_read()
74         return (uint32_t)(s->imr >> 32);  in mcf_intc_read()
76         return (uint32_t)s->imr;  in mcf_intc_read()
78         return (uint32_t)(s->ifr >> 32);  in mcf_intc_read()
80         return (uint32_t)s->ifr;  in mcf_intc_read()
82         return s->active_vector;  in mcf_intc_read()
86         qemu_log_mask(LOG_UNIMP, "%s: LnIACK not implemented (offset 0x%02x)\n",  in mcf_intc_read()
87                       __func__, offset);  in mcf_intc_read()
97     int offset;  in mcf_intc_write()  local
99     offset = addr & 0xff;  in mcf_intc_write()
100     if (offset >= 0x40 && offset < 0x80) {  in mcf_intc_write()
101         int n = offset - 0x40;  in mcf_intc_write()
102         s->icr[n] = val;  in mcf_intc_write()
104             s->enabled &= ~(1ull << n);  in mcf_intc_write()
106             s->enabled |= (1ull << n);  in mcf_intc_write()
110     switch (offset) {  in mcf_intc_write()
115         s->imr = (s->imr & 0xffffffff) | ((uint64_t)val << 32);  in mcf_intc_write()
118         s->imr = (s->imr & 0xffffffff00000000ull) | (uint32_t)val;  in mcf_intc_write()
122             s->imr = ~0ull;  in mcf_intc_write()
124             s->imr |= (0x1ull << (val & 0x3f));  in mcf_intc_write()
129             s->imr = 0ull;  in mcf_intc_write()
131             s->imr &= ~(0x1ull << (val & 0x3f));  in mcf_intc_write()
135         qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%02x\n",  in mcf_intc_write()
136                       __func__, offset);  in mcf_intc_write()
148         s->ipr |= 1ull << irq;  in mcf_intc_set_irq()
150         s->ipr &= ~(1ull << irq);  in mcf_intc_set_irq()
158     s->imr = ~0ull;  in mcf_intc_reset()
159     s->ipr = 0;  in mcf_intc_reset()
160     s->ifr = 0;  in mcf_intc_reset()
161     s->enabled = 0;  in mcf_intc_reset()
162     memset(s->icr, 0, 64);  in mcf_intc_reset()
163     s->active_vector = 24;  in mcf_intc_reset()
176     memory_region_init_io(&s->iomem, obj, &mcf_intc_ops, s, "mcf", 0x100);  in mcf_intc_instance_init()
177     sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->iomem);  in mcf_intc_instance_init()
181     DEFINE_PROP_LINK("m68k-cpu", mcf_intc_state, cpu,
191     set_bit(DEVICE_CATEGORY_MISC, dc->categories);  in mcf_intc_class_init()
212                         M68kCPU *cpu)  in type_init()
217     object_property_set_link(OBJECT(dev), "m68k-cpu",  in type_init()
218                              OBJECT(cpu), &error_abort);  in type_init()