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