diff options
Diffstat (limited to 'hw/char/serial.c')
-rw-r--r-- | hw/char/serial.c | 142 |
1 files changed, 4 insertions, 138 deletions
diff --git a/hw/char/serial.c b/hw/char/serial.c index d8b2db5..03fec3f 100644 --- a/hw/char/serial.c +++ b/hw/char/serial.c @@ -31,8 +31,8 @@ #include "chardev/char-serial.h" #include "qapi/error.h" #include "qemu/timer.h" -#include "sysemu/reset.h" -#include "sysemu/runstate.h" +#include "system/reset.h" +#include "system/runstate.h" #include "qemu/error-report.h" #include "trace.h" #include "hw/qdev-properties.h" @@ -951,13 +951,6 @@ static void serial_unrealize(DeviceState *dev) qemu_unregister_reset(serial_reset, s); } -/* Change the main reference oscillator frequency. */ -void serial_set_frequency(SerialState *s, uint32_t frequency) -{ - s->baudbase = frequency; - serial_update_parameters(s); -} - const MemoryRegionOps serial_io_ops = { .read = serial_ioport_read, .write = serial_ioport_write, @@ -971,14 +964,13 @@ const MemoryRegionOps serial_io_ops = { .endianness = DEVICE_LITTLE_ENDIAN, }; -static Property serial_properties[] = { +static const Property serial_properties[] = { DEFINE_PROP_CHR("chardev", SerialState, chr), DEFINE_PROP_UINT32("baudbase", SerialState, baudbase, 115200), DEFINE_PROP_BOOL("wakeup", SerialState, wakeup, false), - DEFINE_PROP_END_OF_LIST(), }; -static void serial_class_init(ObjectClass *klass, void* data) +static void serial_class_init(ObjectClass *klass, const void *data) { DeviceClass *dc = DEVICE_CLASS(klass); @@ -996,135 +988,9 @@ static const TypeInfo serial_info = { .class_init = serial_class_init, }; -/* Memory mapped interface */ -static uint64_t serial_mm_read(void *opaque, hwaddr addr, - unsigned size) -{ - SerialMM *s = SERIAL_MM(opaque); - return serial_ioport_read(&s->serial, addr >> s->regshift, 1); -} - -static void serial_mm_write(void *opaque, hwaddr addr, - uint64_t value, unsigned size) -{ - SerialMM *s = SERIAL_MM(opaque); - value &= 255; - serial_ioport_write(&s->serial, addr >> s->regshift, value, 1); -} - -static const MemoryRegionOps serial_mm_ops[3] = { - [DEVICE_NATIVE_ENDIAN] = { - .read = serial_mm_read, - .write = serial_mm_write, - .endianness = DEVICE_NATIVE_ENDIAN, - .valid.max_access_size = 8, - .impl.max_access_size = 8, - }, - [DEVICE_LITTLE_ENDIAN] = { - .read = serial_mm_read, - .write = serial_mm_write, - .endianness = DEVICE_LITTLE_ENDIAN, - .valid.max_access_size = 8, - .impl.max_access_size = 8, - }, - [DEVICE_BIG_ENDIAN] = { - .read = serial_mm_read, - .write = serial_mm_write, - .endianness = DEVICE_BIG_ENDIAN, - .valid.max_access_size = 8, - .impl.max_access_size = 8, - }, -}; - -static void serial_mm_realize(DeviceState *dev, Error **errp) -{ - SerialMM *smm = SERIAL_MM(dev); - SerialState *s = &smm->serial; - - if (!qdev_realize(DEVICE(s), NULL, errp)) { - return; - } - - memory_region_init_io(&s->io, OBJECT(dev), - &serial_mm_ops[smm->endianness], smm, "serial", - 8 << smm->regshift); - sysbus_init_mmio(SYS_BUS_DEVICE(smm), &s->io); - sysbus_init_irq(SYS_BUS_DEVICE(smm), &smm->serial.irq); -} - -static const VMStateDescription vmstate_serial_mm = { - .name = "serial", - .version_id = 3, - .minimum_version_id = 2, - .fields = (const VMStateField[]) { - VMSTATE_STRUCT(serial, SerialMM, 0, vmstate_serial, SerialState), - VMSTATE_END_OF_LIST() - } -}; - -SerialMM *serial_mm_init(MemoryRegion *address_space, - hwaddr base, int regshift, - qemu_irq irq, int baudbase, - Chardev *chr, enum device_endian end) -{ - SerialMM *smm = SERIAL_MM(qdev_new(TYPE_SERIAL_MM)); - MemoryRegion *mr; - - qdev_prop_set_uint8(DEVICE(smm), "regshift", regshift); - qdev_prop_set_uint32(DEVICE(smm), "baudbase", baudbase); - qdev_prop_set_chr(DEVICE(smm), "chardev", chr); - qdev_set_legacy_instance_id(DEVICE(smm), base, 2); - qdev_prop_set_uint8(DEVICE(smm), "endianness", end); - sysbus_realize_and_unref(SYS_BUS_DEVICE(smm), &error_fatal); - - sysbus_connect_irq(SYS_BUS_DEVICE(smm), 0, irq); - mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(smm), 0); - memory_region_add_subregion(address_space, base, mr); - - return smm; -} - -static void serial_mm_instance_init(Object *o) -{ - SerialMM *smm = SERIAL_MM(o); - - object_initialize_child(o, "serial", &smm->serial, TYPE_SERIAL); - - qdev_alias_all_properties(DEVICE(&smm->serial), o); -} - -static Property serial_mm_properties[] = { - /* - * Set the spacing between adjacent memory-mapped UART registers. - * Each register will be at (1 << regshift) bytes after the - * previous one. - */ - DEFINE_PROP_UINT8("regshift", SerialMM, regshift, 0), - DEFINE_PROP_UINT8("endianness", SerialMM, endianness, DEVICE_NATIVE_ENDIAN), - DEFINE_PROP_END_OF_LIST(), -}; - -static void serial_mm_class_init(ObjectClass *oc, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(oc); - - device_class_set_props(dc, serial_mm_properties); - dc->realize = serial_mm_realize; - dc->vmsd = &vmstate_serial_mm; -} - -static const TypeInfo serial_mm_info = { - .name = TYPE_SERIAL_MM, - .parent = TYPE_SYS_BUS_DEVICE, - .class_init = serial_mm_class_init, - .instance_init = serial_mm_instance_init, - .instance_size = sizeof(SerialMM), -}; - static void serial_register_types(void) { type_register_static(&serial_info); - type_register_static(&serial_mm_info); } type_init(serial_register_types) |