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 16 static bool is_serial_enabled(ISASuperIODevice *sio, uint8_t index) 17 { 18 return index < 2; 19 } 20 21 static uint16_t get_serial_iobase(ISASuperIODevice *sio, uint8_t index) 22 { 23 return index ? 0x2f8 : 0x3f8; 24 } 25 26 static unsigned int get_serial_irq(ISASuperIODevice *sio, uint8_t index) 27 { 28 return index ? 3 : 4; 29 } 30 31 /* Parallel port */ 32 33 static bool is_parallel_enabled(ISASuperIODevice *sio, uint8_t index) 34 { 35 return index < 1; 36 } 37 38 static uint16_t get_parallel_iobase(ISASuperIODevice *sio, uint8_t index) 39 { 40 return 0x378; 41 } 42 43 static unsigned int get_parallel_irq(ISASuperIODevice *sio, uint8_t index) 44 { 45 return 7; 46 } 47 48 static 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 55 static bool is_fdc_enabled(ISASuperIODevice *sio, uint8_t index) 56 { 57 return index < 1; 58 } 59 60 static uint16_t get_fdc_iobase(ISASuperIODevice *sio, uint8_t index) 61 { 62 return 0x3f0; 63 } 64 65 static unsigned int get_fdc_irq(ISASuperIODevice *sio, uint8_t index) 66 { 67 return 6; 68 } 69 70 static unsigned int get_fdc_dma(ISASuperIODevice *sio, uint8_t index) 71 { 72 return 2; 73 } 74 75 static 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 } 101 102 static 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 }; 109 110 static void smc37c669_register_types(void) 111 { 112 type_register_static(&smc37c669_type_info); 113 } 114 115 type_init(smc37c669_register_types) 116