arch/m68k-amiga/card/owncard.c

   1 /*
   2     Copyright © 1995-2014, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: OwnCard() function.
   6     Lang: english
   7 */
   8
   9 #include <proto/exec.h>
  10
  11 #include "card_intern.h"
  12
  13 AROS_LH1(struct CardHandle*, OwnCard,
  14          AROS_LHA(struct CardHandle*, handle, A1),
  15          struct CardResource*, CardResource, 1, Card)
  16 {
  17     AROS_LIBFUNC_INIT
  18
  19     struct CardHandle *ret = NULL;
  20
  21     CARDDEBUG(bug("OwnCard(%p,%08x)\n", handle, handle->cah_CardFlags));
  22
  23     handle->cah_CardFlags &= ~CARDF_USED;
  24     if (handle->cah_CardFlags & CARDF_DELAYOWNERSHIP) {
  25         Forbid();
  26         Enqueue(&CardResource->handles, &handle->cah_CardNode);
  27         Permit();
  28         pcmcia_newowner(CardResource, TRUE);
  29         ret = (struct CardHandle*)-1;
  30     } else if (handle->cah_CardFlags & CARDF_IFAVAILABLE) {
  31         if (CardResource->removed)
  32             ret = (struct CardHandle*)-1;
  33         else if (CardResource->ownedcard)
  34             ret = CardResource->ownedcard;
  35     }
  36
  37     if (ret == NULL) {
  38         if (CardResource->removed)
  39             ret = (struct CardHandle*)-1;
  40         else if (CardResource->ownedcard == NULL) {
  41             Forbid();
  42             AddHead(&CardResource->handles, &handle->cah_CardNode);
  43             Permit();
  44             pcmcia_newowner(CardResource, FALSE);
  45         } else
  46             ret = 0;
  47     }
  48
  49     CARDDEBUG(bug("=%p\n", ret));
  50
  51     return ret;
  52
  53     AROS_LIBFUNC_EXIT
  54 }