Add MEN z125 UART over MEN Chameleon Bus emulation. Signed-off-by: Johannes Thumshirn <jthumsh...@suse.de> --- hw/char/Makefile.objs | 1 + hw/char/serial-mcb.c | 97 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 98 insertions(+) create mode 100644 hw/char/serial-mcb.c
diff --git a/hw/char/Makefile.objs b/hw/char/Makefile.objs index b57053129107..063f1720974d 100644 --- a/hw/char/Makefile.objs +++ b/hw/char/Makefile.objs @@ -6,6 +6,7 @@ common-obj-$(CONFIG_PL011) += pl011.o common-obj-$(CONFIG_SERIAL) += serial.o common-obj-$(CONFIG_SERIAL_ISA) += serial-isa.o common-obj-$(CONFIG_SERIAL_PCI) += serial-pci.o +common-obj-$(CONFIG_MCB) += serial-mcb.o common-obj-$(CONFIG_VIRTIO_SERIAL) += virtio-console.o common-obj-$(CONFIG_XILINX) += xilinx_uartlite.o common-obj-$(CONFIG_XEN) += xen_console.o diff --git a/hw/char/serial-mcb.c b/hw/char/serial-mcb.c new file mode 100644 index 000000000000..a1087bc369dd --- /dev/null +++ b/hw/char/serial-mcb.c @@ -0,0 +1,97 @@ +/* + * QEMU MEN 16z125 UART over MCB emulation + * + * Copyright (C) 2016 Johannes Thumshirn <jthumsh...@suse.de> + * + * This code is licensed under the GNU GPL v2 or (at your opinion) any + * later version + */ + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "hw/char/serial.h" +#include "hw/mcb/mcb.h" + +typedef struct { + MCBDevice dev; + SerialState state; +} MCBSerialState; + +static void serial_mcb_realize(DeviceState *dev, Error **errp) +{ + MCBDevice *mdev = MCB_DEVICE(dev); + MCBSerialState *mss = DO_UPCAST(MCBSerialState, dev, mdev); + MCBus *bus = MCB_BUS(qdev_get_parent_bus(DEVICE(dev))); + SerialState *s = &mss->state; + Error *err = 0; + + mdev->gdd = mcb_new_chameleon_descriptor(bus, 125, mdev->rev, + mdev->var, 0x10); + if (!mdev->gdd) { + return; + } + + s->baudbase = 115200; + serial_realize_core(s, &err); + if (err != NULL) { + error_propagate(errp, err); + return; + } + + s->irq = mcb_allocate_irq(&mss->dev); + memory_region_init_io(&s->io, OBJECT(mss), &serial_io_ops, s, "serial", 8); + memory_region_add_subregion(&bus->mmio_region, mdev->gdd->offset, &s->io); +} + +static void serial_mcb_unrealize(DeviceState *dev, Error **errp) +{ + MCBDevice *mdev = MCB_DEVICE(dev); + + g_free(&mdev->gdd); +} + +static const VMStateDescription vmstate_mcb_serial = { + .name = "mcb-serial", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_MCB_DEVICE(dev, MCBSerialState), + VMSTATE_STRUCT(state, MCBSerialState, 0, vmstate_serial, SerialState), + VMSTATE_END_OF_LIST() + } +}; + +static Property serial_mcb_properties[] = { + DEFINE_PROP_CHR("chardev", MCBSerialState, state.chr), + DEFINE_PROP_UINT8("rev", MCBSerialState, dev.rev, 0), + DEFINE_PROP_UINT8("var", MCBSerialState, dev.var, 0), + DEFINE_PROP_END_OF_LIST(), +}; + +static void serial_mcb_class_initfn(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + MCBDeviceClass *mc = MCB_DEVICE_CLASS(klass); + + mc->realize = serial_mcb_realize; + mc->unrealize = serial_mcb_unrealize; + + set_bit(DEVICE_CATEGORY_INPUT, dc->categories); + dc->desc = "MEN 16z125 UART over MCB"; + dc->vmsd = &vmstate_mcb_serial; + dc->props = serial_mcb_properties; +} + +static const TypeInfo serial_mcb_info = { + .name = "mcb-serial", + .parent = TYPE_MCB_DEVICE, + .instance_size = sizeof(MCBSerialState), + .class_init = serial_mcb_class_initfn, +}; + +static void serial_mcb_register_types(void) +{ + type_register_static(&serial_mcb_info); +} + +type_init(serial_mcb_register_types); -- 2.16.4