From 7812dbc54c72f71df2644d0cec52a1e8d6b19584 Mon Sep 17 00:00:00 2001 From: Bernhard Beschow Date: Sun, 14 Jan 2024 13:39:08 +0100 Subject: hw/char/serial-isa: Implement relocation and enabling/disabling for TYPE_ISA_SERIAL The real SuperI/O chips emulated by QEMU allow for relocating and enabling or disabling their SuperI/O functions via software. So far this is not implemented. Prepare for that by adding isa_serial_set_{enabled,iobase}. Signed-off-by: Bernhard Beschow Message-Id: <20240114123911.4877-9-shentey@gmail.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/char/serial-isa.c | 14 ++++++++++++++ include/hw/char/serial.h | 2 ++ 2 files changed, 16 insertions(+) diff --git a/hw/char/serial-isa.c b/hw/char/serial-isa.c index 1c793b2..329b352 100644 --- a/hw/char/serial-isa.c +++ b/hw/char/serial-isa.c @@ -184,3 +184,17 @@ void serial_hds_isa_init(ISABus *bus, int from, int to) } } } + +void isa_serial_set_iobase(ISADevice *serial, hwaddr iobase) +{ + ISASerialState *s = ISA_SERIAL(serial); + + serial->ioport_id = iobase; + s->iobase = iobase; + memory_region_set_address(&s->state.io, s->iobase); +} + +void isa_serial_set_enabled(ISADevice *serial, bool enabled) +{ + memory_region_set_enabled(&ISA_SERIAL(serial)->state.io, enabled); +} diff --git a/include/hw/char/serial.h b/include/hw/char/serial.h index 8ba7eca..6e14099 100644 --- a/include/hw/char/serial.h +++ b/include/hw/char/serial.h @@ -112,5 +112,7 @@ SerialMM *serial_mm_init(MemoryRegion *address_space, #define TYPE_ISA_SERIAL "isa-serial" void serial_hds_isa_init(ISABus *bus, int from, int to); +void isa_serial_set_iobase(ISADevice *serial, hwaddr iobase); +void isa_serial_set_enabled(ISADevice *serial, bool enabled); #endif -- cgit v1.1