drew/acadia
1
0
Fork 0
Code Issues 6 Pull requests Projects Releases Packages Wiki Activity Actions

[zion] Move port calls to new syscall process.

Browse source
This commit is contained in:
Drew Galbraith 2023-06-20 14:55:54 -07:00
parent 77bb3acfb4
commit bd431b94ce
11 changed files with 118 additions and 175 deletions
Download patch file Download diff file Expand all files Collapse all files

81
zion/syscall/port.cpp Normal file
View file

@ -0,0 +1,81 @@
#include "syscall/port.h"
#include "interrupt/interrupt.h"
#include "scheduler/scheduler.h"
#include "syscall/syscall.h"
z_err_t PortCreate(ZPortCreateReq* req) {
auto& proc = gScheduler->CurrentProcess();
auto port = MakeRefCounted<Port>();
*req->port_cap = proc.AddNewCapability(port, ZC_WRITE | ZC_READ);
return Z_OK;
}
z_err_t PortSend(ZPortSendReq* req) {
auto& proc = gScheduler->CurrentProcess();
auto port_cap = proc.GetCapability(req->port_cap);
RET_ERR(ValidateCap(port_cap, ZC_WRITE));
auto port = port_cap->obj<Port>();
RET_IF_NULL(port);
ZMessage message{
.num_bytes = req->num_bytes,
.data = const_cast<void*>(req->data),
.num_caps = req->num_caps,
.caps = req->caps,
};
return port->Write(message);
}
z_err_t PortRecv(ZPortRecvReq* req) {
auto& proc = gScheduler->CurrentProcess();
auto port_cap = proc.GetCapability(req->port_cap);
RET_ERR(ValidateCap(port_cap, ZC_READ));
auto port = port_cap->obj<Port>();
RET_IF_NULL(port);
ZMessage message{
.num_bytes = *req->num_bytes,
.data = const_cast<void*>(req->data),
.num_caps = *req->num_caps,
.caps = req->caps,
};
RET_ERR(port->Read(message));
*req->num_bytes = message.num_bytes;
*req->num_caps = message.num_caps;
return Z_OK;
}
z_err_t PortPoll(ZPortPollReq* req) {
auto& proc = gScheduler->CurrentProcess();
auto port_cap = proc.GetCapability(req->port_cap);
RET_ERR(ValidateCap(port_cap, ZC_READ));
auto port = port_cap->obj<Port>();
RET_IF_NULL(port);
if (!port->HasMessages()) {
return Z_ERR_EMPTY;
}
ZMessage message{
.num_bytes = *req->num_bytes,
.data = const_cast<void*>(req->data),
.num_caps = *req->num_caps,
.caps = req->caps,
};
RET_ERR(port->Read(message));
*req->num_bytes = message.num_bytes;
*req->num_caps = message.num_caps;
return Z_OK;
}
z_err_t IrqRegister(ZIrqRegisterReq* req) {
auto& proc = gScheduler->CurrentProcess();
if (req->irq_num != Z_IRQ_PCI_BASE) {
// FIXME: Don't hardcode this nonsense.
return Z_ERR_UNIMPLEMENTED;
}
RefPtr<Port> port = MakeRefCounted<Port>();
*req->port_cap = proc.AddNewCapability(port, ZC_READ | ZC_WRITE);
RegisterPciPort(port);
return Z_OK;
}