rcv_endpoint.h

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/*
 * (c) 2017 Alexander Warg <alexander.warg@kernkonzept.com>
 *
 * License: see LICENSE.spdx (in this directory or the directories above)
 */
#pragma once
 
#include <l4/sys/utcb.h>
#include <l4/sys/types.h>

L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_thread(l4_cap_idx_t ep, l4_cap_idx_t thread,
                      l4_umword_t label);

L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_snd_destination(l4_cap_idx_t ep, l4_cap_idx_t snd_dst,
                               l4_umword_t label);

L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_thread_u(l4_cap_idx_t ep, l4_cap_idx_t thread,
                        l4_umword_t label, l4_utcb_t *utcb);
 
L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_snd_destination_u(l4_cap_idx_t ep, l4_cap_idx_t snd_dst,
                                 l4_umword_t label, l4_utcb_t *utcb);

enum L4_rcv_ep_ops
{
  L4_RCV_EP_BIND_OP     = 0x10, 
};
 
/* IMPLEMENTATION -----------------------------------------------------------*/
 
#include <l4/sys/ipc.h>
 
L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_thread_u(l4_cap_idx_t ep,
                        l4_cap_idx_t thread, l4_umword_t label,
                        l4_utcb_t *utcb)
{
  l4_msg_regs_t *m = l4_utcb_mr_u(utcb);
  m->mr[0] = L4_RCV_EP_BIND_OP;
  m->mr[1] = label;
  m->mr[2] = l4_map_obj_control(0, 0);
  m->mr[3] = l4_obj_fpage(thread, 0, L4_CAP_FPAGE_RWS).raw;
  return l4_ipc_call(ep, utcb, l4_msgtag(L4_PROTO_KOBJECT, 2, 1, 0),
                     L4_IPC_NEVER);
}
 
L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_snd_destination_u(l4_cap_idx_t ep,
                                 l4_cap_idx_t snd_dst, l4_umword_t label,
                                 l4_utcb_t *utcb)
{
  l4_msg_regs_t *m = l4_utcb_mr_u(utcb);
  m->mr[0] = L4_RCV_EP_BIND_OP;
  m->mr[1] = label;
  m->mr[2] = l4_map_obj_control(0, 0);
  m->mr[3] = l4_obj_fpage(snd_dst, 0, L4_CAP_FPAGE_RWS).raw;
  return l4_ipc_call(ep, utcb, l4_msgtag(L4_PROTO_KOBJECT, 2, 1, 0),
                     L4_IPC_NEVER);
}
 
L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_thread(l4_cap_idx_t ep, l4_cap_idx_t thread,
                      l4_umword_t label)
{
  return l4_rcv_ep_bind_thread_u(ep, thread, label, l4_utcb());
}
 
L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_snd_destination(l4_cap_idx_t ep, l4_cap_idx_t snd_dst,
                               l4_umword_t label)
{
  return l4_rcv_ep_bind_snd_destination_u(ep, snd_dst, label, l4_utcb());
}