xref: /openbmc/qemu/hw/ide/ioport.c (revision 954a6c4f)
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 "qemu/error-report.h"
29 #include "qemu/timer.h"
30 #include "sysemu/blockdev.h"
31 #include "sysemu/dma.h"
32 #include "hw/block/block.h"
33 #include "sysemu/block-backend.h"
34 #include "qapi/error.h"
35 #include "qemu/cutils.h"
36 #include "sysemu/replay.h"
37 
38 #include "hw/ide/internal.h"
39 #include "trace.h"
40 
41 static const MemoryRegionPortio ide_portio_list[] = {
42     { 0, 8, 1, .read = ide_ioport_read, .write = ide_ioport_write },
43     { 0, 1, 2, .read = ide_data_readw, .write = ide_data_writew },
44     { 0, 1, 4, .read = ide_data_readl, .write = ide_data_writel },
45     PORTIO_END_OF_LIST(),
46 };
47 
48 static const MemoryRegionPortio ide_portio2_list[] = {
49     { 0, 1, 1, .read = ide_status_read, .write = ide_ctrl_write },
50     PORTIO_END_OF_LIST(),
51 };
52 
53 int ide_init_ioport(IDEBus *bus, ISADevice *dev, int iobase, int iobase2)
54 {
55     int ret;
56 
57     /* ??? Assume only ISA and PCI configurations, and that the PCI-ISA
58        bridge has been setup properly to always register with ISA.  */
59     ret = isa_register_portio_list(dev, &bus->portio_list,
60                                    iobase, ide_portio_list, bus, "ide");
61 
62     if (ret == 0 && iobase2) {
63         ret = isa_register_portio_list(dev, &bus->portio2_list,
64                                        iobase2, ide_portio2_list, bus, "ide");
65     }
66 
67     return ret;
68 }
69