diff options
Diffstat (limited to 'hw/parallel.c')
| -rw-r--r-- | hw/parallel.c | 61 |
1 files changed, 53 insertions, 8 deletions
diff --git a/hw/parallel.c b/hw/parallel.c index faaaa0d..2635edc 100644 --- a/hw/parallel.c +++ b/hw/parallel.c @@ -78,6 +78,13 @@ struct ParallelState { int it_shift; }; +typedef struct ISAParallelState { + ISADevice dev; + uint32_t iobase; + uint32_t isairq; + ParallelState state; +} ISAParallelState; + static void parallel_update_irq(ParallelState *s) { if (s->irq_pending) @@ -438,19 +445,23 @@ static void parallel_reset(void *opaque) s->last_read_offset = ~0U; } -/* If fd is zero, it means that the parallel device uses the console */ -ParallelState *parallel_init(int base, qemu_irq irq, CharDriverState *chr) +static int parallel_isa_initfn(ISADevice *dev) { - ParallelState *s; + ISAParallelState *isa = DO_UPCAST(ISAParallelState, dev, dev); + ParallelState *s = &isa->state; + int base = isa->iobase; uint8_t dummy; - s = qemu_mallocz(sizeof(ParallelState)); - s->irq = irq; - s->chr = chr; + if (!s->chr) { + fprintf(stderr, "Can't create parallel device, empty char device\n"); + exit(1); + } + + isa_init_irq(dev, &s->irq, isa->isairq); parallel_reset(s); qemu_register_reset(parallel_reset, s); - if (qemu_chr_ioctl(chr, CHR_IOCTL_PP_READ_STATUS, &dummy) == 0) { + if (qemu_chr_ioctl(s->chr, CHR_IOCTL_PP_READ_STATUS, &dummy) == 0) { s->hw_driver = 1; s->status = dummy; } @@ -469,7 +480,22 @@ ParallelState *parallel_init(int base, qemu_irq irq, CharDriverState *chr) register_ioport_write(base, 8, 1, parallel_ioport_write_sw, s); register_ioport_read(base, 8, 1, parallel_ioport_read_sw, s); } - return s; + return 0; +} + +static const int isa_parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc }; + +ParallelState *parallel_init(int index, CharDriverState *chr) +{ + ISADevice *dev; + + dev = isa_create("isa-parallel"); + qdev_prop_set_uint32(&dev->qdev, "iobase", isa_parallel_io[index]); + qdev_prop_set_uint32(&dev->qdev, "irq", 7); + qdev_prop_set_chr(&dev->qdev, "chardev", chr); + if (qdev_init(&dev->qdev) != 0) + return NULL; + return &DO_UPCAST(ISAParallelState, dev, dev)->state; } /* Memory mapped interface */ @@ -547,3 +573,22 @@ ParallelState *parallel_mm_init(target_phys_addr_t base, int it_shift, qemu_irq cpu_register_physical_memory(base, 8 << it_shift, io_sw); return s; } + +static ISADeviceInfo parallel_isa_info = { + .qdev.name = "isa-parallel", + .qdev.size = sizeof(ISAParallelState), + .init = parallel_isa_initfn, + .qdev.props = (Property[]) { + DEFINE_PROP_HEX32("iobase", ISAParallelState, iobase, 0x378), + DEFINE_PROP_UINT32("irq", ISAParallelState, isairq, 7), + DEFINE_PROP_CHR("chardev", ISAParallelState, state.chr), + DEFINE_PROP_END_OF_LIST(), + }, +}; + +static void parallel_register_devices(void) +{ + isa_qdev_register(¶llel_isa_info); +} + +device_init(parallel_register_devices) |