#include "syscall/pci.h"

#include "object/pci_port.h"
#include "scheduler/scheduler.h"

z_err_t PciRead(ZPciReadReq* req) {
  auto& curr_proc = gScheduler->CurrentProcess();
  auto pci_cap = curr_proc.GetCapability(req->pci_cap);
  RET_ERR(ValidateCapability<PciPort>(pci_cap, kZionPerm_Read));

  *req->output = pci_cap->obj<PciPort>()->ReadAtOffset(req->bus, req->slot,
                                                       req->func, req->offset);

  return glcr::OK;
}

z_err_t PciCreateBound(ZPciCreateBoundReq* req) {
  auto& curr_proc = gScheduler->CurrentProcess();
  auto pci_cap = curr_proc.GetCapability(req->pci_cap);
  RET_ERR(ValidateCapability<PciPort>(pci_cap, kZionPerm_Duplicate));

  *req->new_cap = curr_proc.AddNewCapability(
      PciPortBound::Create(req->bus, req->slot, req->func));
  return glcr::OK;
}

z_err_t PciReadBound(ZPciReadBoundReq* req) {
  auto& curr_proc = gScheduler->CurrentProcess();
  auto pci_cap = curr_proc.GetCapability(req->pci_cap);
  RET_ERR(ValidateCapability<PciPortBound>(pci_cap, kZionPerm_Read));

  *req->data = pci_cap->obj<PciPortBound>()->Read(req->offset);

  return glcr::OK;
}
z_err_t PciWriteBound(ZPciWriteBoundReq* req) {
  auto& curr_proc = gScheduler->CurrentProcess();
  auto pci_cap = curr_proc.GetCapability(req->pci_cap);
  RET_ERR(ValidateCapability<PciPortBound>(pci_cap, kZionPerm_Write));

  pci_cap->obj<PciPortBound>()->Write(req->offset, req->data);

  return glcr::OK;
}