hw/ide/ioport.c

   1 /*
   2  * QEMU IDE disk and CD/DVD-ROM Emulator
   3  *
   4  * Copyright (c) 2003 Fabrice Bellard
   5  * Copyright (c) 2006 Openedhand Ltd.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23  * THE SOFTWARE.
  24  */
  25
  26 #include "qemu/osdep.h"
  27 #include "hw/isa/isa.h"
  28 #include "hw/ide/internal.h"
  29 #include "trace.h"
  30
  31 static const MemoryRegionPortio ide_portio_list[] = {
  32     { 0, 8, 1, .read = ide_ioport_read, .write = ide_ioport_write },
  33     { 0, 1, 2, .read = ide_data_readw, .write = ide_data_writew },
  34     { 0, 1, 4, .read = ide_data_readl, .write = ide_data_writel },
  35     PORTIO_END_OF_LIST(),
  36 };
  37
  38 static const MemoryRegionPortio ide_portio2_list[] = {
  39     { 0, 1, 1, .read = ide_status_read, .write = ide_ctrl_write },
  40     PORTIO_END_OF_LIST(),
  41 };
  42
  43 int ide_init_ioport(IDEBus *bus, ISADevice *dev, int iobase, int iobase2)
  44 {
  45     int ret;
  46
  47     /* ??? Assume only ISA and PCI configurations, and that the PCI-ISA
  48        bridge has been setup properly to always register with ISA.  */
  49     ret = isa_register_portio_list(dev, &bus->portio_list,
  50                                    iobase, ide_portio_list, bus, "ide");
  51
  52     if (ret == 0 && iobase2) {
  53         ret = isa_register_portio_list(dev, &bus->portio2_list,
  54                                        iobase2, ide_portio2_list, bus, "ide");
  55     }
  56
  57     return ret;
  58 }