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 work is licensed under the terms of the GNU GPL, version 2 or 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