1 /* 2 * Generic ISA Super I/O 3 * 4 * Copyright (c) 2010-2012 Herve Poussineau 5 * Copyright (c) 2011-2012 Andreas Färber 6 * Copyright (c) 2018 Philippe Mathieu-Daudé 7 * 8 * This code is licensed under the GNU GPLv2 and later. 9 * See the COPYING file in the top-level directory. 10 * SPDX-License-Identifier: GPL-2.0-or-later 11 */ 12 13 #include "qemu/osdep.h" 14 #include "qemu/error-report.h" 15 #include "qemu/module.h" 16 #include "qapi/error.h" 17 #include "sysemu/sysemu.h" 18 #include "sysemu/blockdev.h" 19 #include "chardev/char.h" 20 #include "hw/isa/superio.h" 21 #include "hw/qdev-properties.h" 22 #include "hw/input/i8042.h" 23 #include "hw/char/serial.h" 24 #include "trace.h" 25 26 static void isa_superio_realize(DeviceState *dev, Error **errp) 27 { 28 ISASuperIODevice *sio = ISA_SUPERIO(dev); 29 ISASuperIOClass *k = ISA_SUPERIO_GET_CLASS(sio); 30 ISABus *bus = isa_bus_from_device(ISA_DEVICE(dev)); 31 ISADevice *isa; 32 DeviceState *d; 33 Chardev *chr; 34 DriveInfo *drive; 35 char *name; 36 int i; 37 38 /* Parallel port */ 39 for (i = 0; i < k->parallel.count; i++) { 40 if (i >= ARRAY_SIZE(sio->parallel)) { 41 warn_report("superio: ignoring %td parallel controllers", 42 k->parallel.count - ARRAY_SIZE(sio->parallel)); 43 break; 44 } 45 if (!k->parallel.is_enabled || k->parallel.is_enabled(sio, i)) { 46 /* FIXME use a qdev chardev prop instead of parallel_hds[] */ 47 chr = parallel_hds[i]; 48 if (chr == NULL) { 49 name = g_strdup_printf("discarding-parallel%d", i); 50 chr = qemu_chr_new(name, "null", NULL); 51 } else { 52 name = g_strdup_printf("parallel%d", i); 53 } 54 isa = isa_create(bus, "isa-parallel"); 55 d = DEVICE(isa); 56 qdev_prop_set_uint32(d, "index", i); 57 if (k->parallel.get_iobase) { 58 qdev_prop_set_uint32(d, "iobase", 59 k->parallel.get_iobase(sio, i)); 60 } 61 if (k->parallel.get_irq) { 62 qdev_prop_set_uint32(d, "irq", k->parallel.get_irq(sio, i)); 63 } 64 qdev_prop_set_chr(d, "chardev", chr); 65 qdev_init_nofail(d); 66 sio->parallel[i] = isa; 67 trace_superio_create_parallel(i, 68 k->parallel.get_iobase ? 69 k->parallel.get_iobase(sio, i) : -1, 70 k->parallel.get_irq ? 71 k->parallel.get_irq(sio, i) : -1); 72 object_property_add_child(OBJECT(dev), name, 73 OBJECT(sio->parallel[i]), NULL); 74 g_free(name); 75 } 76 } 77 78 /* Serial */ 79 for (i = 0; i < k->serial.count; i++) { 80 if (i >= ARRAY_SIZE(sio->serial)) { 81 warn_report("superio: ignoring %td serial controllers", 82 k->serial.count - ARRAY_SIZE(sio->serial)); 83 break; 84 } 85 if (!k->serial.is_enabled || k->serial.is_enabled(sio, i)) { 86 /* FIXME use a qdev chardev prop instead of serial_hd() */ 87 chr = serial_hd(i); 88 if (chr == NULL) { 89 name = g_strdup_printf("discarding-serial%d", i); 90 chr = qemu_chr_new(name, "null", NULL); 91 } else { 92 name = g_strdup_printf("serial%d", i); 93 } 94 isa = isa_create(bus, TYPE_ISA_SERIAL); 95 d = DEVICE(isa); 96 qdev_prop_set_uint32(d, "index", i); 97 if (k->serial.get_iobase) { 98 qdev_prop_set_uint32(d, "iobase", 99 k->serial.get_iobase(sio, i)); 100 } 101 if (k->serial.get_irq) { 102 qdev_prop_set_uint32(d, "irq", k->serial.get_irq(sio, i)); 103 } 104 qdev_prop_set_chr(d, "chardev", chr); 105 qdev_init_nofail(d); 106 sio->serial[i] = isa; 107 trace_superio_create_serial(i, 108 k->serial.get_iobase ? 109 k->serial.get_iobase(sio, i) : -1, 110 k->serial.get_irq ? 111 k->serial.get_irq(sio, i) : -1); 112 object_property_add_child(OBJECT(dev), name, 113 OBJECT(sio->serial[0]), NULL); 114 g_free(name); 115 } 116 } 117 118 /* Floppy disc */ 119 if (!k->floppy.is_enabled || k->floppy.is_enabled(sio, 0)) { 120 isa = isa_create(bus, "isa-fdc"); 121 d = DEVICE(isa); 122 if (k->floppy.get_iobase) { 123 qdev_prop_set_uint32(d, "iobase", k->floppy.get_iobase(sio, 0)); 124 } 125 if (k->floppy.get_irq) { 126 qdev_prop_set_uint32(d, "irq", k->floppy.get_irq(sio, 0)); 127 } 128 /* FIXME use a qdev drive property instead of drive_get() */ 129 drive = drive_get(IF_FLOPPY, 0, 0); 130 if (drive != NULL) { 131 qdev_prop_set_drive(d, "driveA", blk_by_legacy_dinfo(drive), 132 &error_fatal); 133 } 134 /* FIXME use a qdev drive property instead of drive_get() */ 135 drive = drive_get(IF_FLOPPY, 0, 1); 136 if (drive != NULL) { 137 qdev_prop_set_drive(d, "driveB", blk_by_legacy_dinfo(drive), 138 &error_fatal); 139 } 140 qdev_init_nofail(d); 141 sio->floppy = isa; 142 trace_superio_create_floppy(0, 143 k->floppy.get_iobase ? 144 k->floppy.get_iobase(sio, 0) : -1, 145 k->floppy.get_irq ? 146 k->floppy.get_irq(sio, 0) : -1); 147 } 148 149 /* Keyboard, mouse */ 150 sio->kbc = isa_create_simple(bus, TYPE_I8042); 151 152 /* IDE */ 153 if (k->ide.count && (!k->ide.is_enabled || k->ide.is_enabled(sio, 0))) { 154 isa = isa_create(bus, "isa-ide"); 155 d = DEVICE(isa); 156 if (k->ide.get_iobase) { 157 qdev_prop_set_uint32(d, "iobase", k->ide.get_iobase(sio, 0)); 158 } 159 if (k->ide.get_iobase) { 160 qdev_prop_set_uint32(d, "iobase2", k->ide.get_iobase(sio, 1)); 161 } 162 if (k->ide.get_irq) { 163 qdev_prop_set_uint32(d, "irq", k->ide.get_irq(sio, 0)); 164 } 165 qdev_init_nofail(d); 166 sio->ide = isa; 167 trace_superio_create_ide(0, 168 k->ide.get_iobase ? 169 k->ide.get_iobase(sio, 0) : -1, 170 k->ide.get_irq ? 171 k->ide.get_irq(sio, 0) : -1); 172 } 173 } 174 175 static void isa_superio_class_init(ObjectClass *oc, void *data) 176 { 177 DeviceClass *dc = DEVICE_CLASS(oc); 178 179 dc->realize = isa_superio_realize; 180 /* Reason: Uses parallel_hds[0] in realize(), so it can't be used twice */ 181 dc->user_creatable = false; 182 } 183 184 static const TypeInfo isa_superio_type_info = { 185 .name = TYPE_ISA_SUPERIO, 186 .parent = TYPE_ISA_DEVICE, 187 .abstract = true, 188 .class_size = sizeof(ISASuperIOClass), 189 .class_init = isa_superio_class_init, 190 }; 191 192 /* SMS FDC37M817 Super I/O */ 193 static void fdc37m81x_class_init(ObjectClass *klass, void *data) 194 { 195 ISASuperIOClass *sc = ISA_SUPERIO_CLASS(klass); 196 197 sc->serial.count = 2; /* NS16C550A */ 198 sc->parallel.count = 1; 199 sc->floppy.count = 1; /* SMSC 82077AA Compatible */ 200 sc->ide.count = 0; 201 } 202 203 static const TypeInfo fdc37m81x_type_info = { 204 .name = TYPE_FDC37M81X_SUPERIO, 205 .parent = TYPE_ISA_SUPERIO, 206 .instance_size = sizeof(ISASuperIODevice), 207 .class_init = fdc37m81x_class_init, 208 }; 209 210 static void isa_superio_register_types(void) 211 { 212 type_register_static(&isa_superio_type_info); 213 type_register_static(&fdc37m81x_type_info); 214 } 215 216 type_init(isa_superio_register_types) 217