qemu/hw/ssi.c
Blue Swirl 72cf2d4f0e Fix sys-queue.h conflict for good
Problem: Our file sys-queue.h is a copy of the BSD file, but there are
some additions and it's not entirely compatible. Because of that, there have
been conflicts with system headers on BSD systems. Some hacks have been
introduced in the commits 15cc923584,
f40d753718,
96555a96d7 and
3990d09adf but the fixes were fragile.

Solution: Avoid the conflict entirely by renaming the functions and the
file. Revert the previous hacks.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-09-12 07:36:22 +00:00

71 lines
1.5 KiB
C

/*
* QEMU Synchronous Serial Interface support
*
* Copyright (c) 2009 CodeSourcery.
* Written by Paul Brook
*
* This code is licenced under the GNU GPL v2.
*/
#include "ssi.h"
struct SSIBus {
BusState qbus;
};
static struct BusInfo ssi_bus_info = {
.name = "SSI",
.size = sizeof(SSIBus),
};
static int ssi_slave_init(DeviceState *dev, DeviceInfo *base_info)
{
SSISlaveInfo *info = container_of(base_info, SSISlaveInfo, qdev);
SSISlave *s = SSI_SLAVE_FROM_QDEV(dev);
SSIBus *bus;
bus = FROM_QBUS(SSIBus, qdev_get_parent_bus(dev));
if (QLIST_FIRST(&bus->qbus.children) != dev
|| QLIST_NEXT(dev, sibling) != NULL) {
hw_error("Too many devices on SSI bus");
}
s->info = info;
return info->init(s);
}
void ssi_register_slave(SSISlaveInfo *info)
{
assert(info->qdev.size >= sizeof(SSISlave));
info->qdev.init = ssi_slave_init;
info->qdev.bus_info = &ssi_bus_info;
qdev_register(&info->qdev);
}
DeviceState *ssi_create_slave(SSIBus *bus, const char *name)
{
DeviceState *dev;
dev = qdev_create(&bus->qbus, name);
qdev_init(dev);
return dev;
}
SSIBus *ssi_create_bus(DeviceState *parent, const char *name)
{
BusState *bus;
bus = qbus_create(&ssi_bus_info, parent, name);
return FROM_QBUS(SSIBus, bus);
}
uint32_t ssi_transfer(SSIBus *bus, uint32_t val)
{
DeviceState *dev;
SSISlave *slave;
dev = QLIST_FIRST(&bus->qbus.children);
if (!dev) {
return 0;
}
slave = SSI_SLAVE_FROM_QDEV(dev);
return slave->info->transfer(slave, val);
}