1/*
2 * SMC FDC37C669 Super I/O controller
3 *
4 * Copyright (c) 2018 Philippe Mathieu-Daudé
5 *
6 * This code is licensed under the GNU GPLv2 and later.
7 * See the COPYING file in the top-level directory.
8 * SPDX-License-Identifier: GPL-2.0-or-later
9 */
10
11#include "qemu/osdep.h"
12#include "hw/isa/superio.h"
13#include "qemu/module.h"
14
15/* UARTs (compatible with NS16450 or PC16550) */
16
17static bool is_serial_enabled(ISASuperIODevice *sio, uint8_t index)
18{
19 return index < 2;
20}
21
22static uint16_t get_serial_iobase(ISASuperIODevice *sio, uint8_t index)
23{
24 return index ? 0x2f8 : 0x3f8;
25}
26
27static unsigned int get_serial_irq(ISASuperIODevice *sio, uint8_t index)
28{
29 return index ? 3 : 4;
30}
31
32/* Parallel port */
33
34static bool is_parallel_enabled(ISASuperIODevice *sio, uint8_t index)
35{
36 return index < 1;
37}
38
39static uint16_t get_parallel_iobase(ISASuperIODevice *sio, uint8_t index)
40{
41 return 0x378;
42}
43
44static unsigned int get_parallel_irq(ISASuperIODevice *sio, uint8_t index)
45{
46 return 7;
47}
48
49static unsigned int get_parallel_dma(ISASuperIODevice *sio, uint8_t index)
50{
51 return 3;
52}
53
54/* Diskette controller (Software compatible with the Intel PC8477) */
55
56static bool is_fdc_enabled(ISASuperIODevice *sio, uint8_t index)
57{
58 return index < 1;
59}
60
61static uint16_t get_fdc_iobase(ISASuperIODevice *sio, uint8_t index)
62{
63 return 0x3f0;
64}
65
66static unsigned int get_fdc_irq(ISASuperIODevice *sio, uint8_t index)
67{
68 return 6;
69}
70
71static unsigned int get_fdc_dma(ISASuperIODevice *sio, uint8_t index)
72{
73 return 2;
74}
75
76static void smc37c669_class_init(ObjectClass *klass, void *data)
77{
78 ISASuperIOClass *sc = ISA_SUPERIO_CLASS(klass);
79
80 sc->parallel = (ISASuperIOFuncs){
81 .count = 1,
82 .is_enabled = is_parallel_enabled,
83 .get_iobase = get_parallel_iobase,
84 .get_irq = get_parallel_irq,
85 .get_dma = get_parallel_dma,
86 };
87 sc->serial = (ISASuperIOFuncs){
88 .count = 2,
89 .is_enabled = is_serial_enabled,
90 .get_iobase = get_serial_iobase,
91 .get_irq = get_serial_irq,
92 };
93 sc->floppy = (ISASuperIOFuncs){
94 .count = 1,
95 .is_enabled = is_fdc_enabled,
96 .get_iobase = get_fdc_iobase,
97 .get_irq = get_fdc_irq,
98 .get_dma = get_fdc_dma,
99 };
100 sc->ide.count = 0;
101}
102
103static const TypeInfo smc37c669_type_info = {
104 .name = TYPE_SMC37C669_SUPERIO,
105 .parent = TYPE_ISA_SUPERIO,
106 .instance_size = sizeof(ISASuperIODevice),
107 .class_size = sizeof(ISASuperIOClass),
108 .class_init = smc37c669_class_init,
109};
110
111static void smc37c669_register_types(void)
112{
113 type_register_static(&smc37c669_type_info);
114}
115
116type_init(smc37c669_register_types)
117