LXR qemu/hw/isa/smc37c669-superio.c

   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
  14/* UARTs (compatible with NS16450 or PC16550) */
  15
  16static bool is_serial_enabled(ISASuperIODevice *sio, uint8_t index)
  17{
  18    return index < 2;
  19}
  20
  21static uint16_t get_serial_iobase(ISASuperIODevice *sio, uint8_t index)
  22{
  23    return index ? 0x2f8 : 0x3f8;
  24}
  25
  26static unsigned int get_serial_irq(ISASuperIODevice *sio, uint8_t index)
  27{
  28    return index ? 3 : 4;
  29}
  30
  31/* Parallel port */
  32
  33static bool is_parallel_enabled(ISASuperIODevice *sio, uint8_t index)
  34{
  35    return index < 1;
  36}
  37
  38static uint16_t get_parallel_iobase(ISASuperIODevice *sio, uint8_t index)
  39{
  40    return 0x378;
  41}
  42
  43static unsigned int get_parallel_irq(ISASuperIODevice *sio, uint8_t index)
  44{
  45    return 7;
  46}
  47
  48static unsigned int get_parallel_dma(ISASuperIODevice *sio, uint8_t index)
  49{
  50    return 3;
  51}
  52
  53/* Diskette controller (Software compatible with the Intel PC8477) */
  54
  55static bool is_fdc_enabled(ISASuperIODevice *sio, uint8_t index)
  56{
  57    return index < 1;
  58}
  59
  60static uint16_t get_fdc_iobase(ISASuperIODevice *sio, uint8_t index)
  61{
  62    return 0x3f0;
  63}
  64
  65static unsigned int get_fdc_irq(ISASuperIODevice *sio, uint8_t index)
  66{
  67    return 6;
  68}
  69
  70static unsigned int get_fdc_dma(ISASuperIODevice *sio, uint8_t index)
  71{
  72    return 2;
  73}
  74
  75static void smc37c669_class_init(ObjectClass *klass, void *data)
  76{
  77    ISASuperIOClass *sc = ISA_SUPERIO_CLASS(klass);
  78
  79    sc->parallel = (ISASuperIOFuncs){
  80        .count = 1,
  81        .is_enabled = is_parallel_enabled,
  82        .get_iobase = get_parallel_iobase,
  83        .get_irq    = get_parallel_irq,
  84        .get_dma    = get_parallel_dma,
  85    };
  86    sc->serial = (ISASuperIOFuncs){
  87        .count = 2,
  88        .is_enabled = is_serial_enabled,
  89        .get_iobase = get_serial_iobase,
  90        .get_irq    = get_serial_irq,
  91    };
  92    sc->floppy = (ISASuperIOFuncs){
  93        .count = 1,
  94        .is_enabled = is_fdc_enabled,
  95        .get_iobase = get_fdc_iobase,
  96        .get_irq    = get_fdc_irq,
  97        .get_dma    = get_fdc_dma,
  98    };
  99    sc->ide.count = 0;
 100}
 101
 102static const TypeInfo smc37c669_type_info = {
 103    .name          = TYPE_SMC37C669_SUPERIO,
 104    .parent        = TYPE_ISA_SUPERIO,
 105    .instance_size = sizeof(ISASuperIODevice),
 106    .class_size    = sizeof(ISASuperIOClass),
 107    .class_init    = smc37c669_class_init,
 108};
 109
 110static void smc37c669_register_types(void)
 111{
 112    type_register_static(&smc37c669_type_info);
 113}
 114
 115type_init(smc37c669_register_types)
 116