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 work is licensed under the terms of the GNU GPL, version 2 or 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_new("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 object_property_add_child(OBJECT(dev), name, OBJECT(isa)); 66 isa_realize_and_unref(isa, bus, &error_fatal); 67 sio->parallel[i] = isa; 68 trace_superio_create_parallel(i, 69 k->parallel.get_iobase ? 70 k->parallel.get_iobase(sio, i) : -1, 71 k->parallel.get_irq ? 72 k->parallel.get_irq(sio, i) : -1); 73 g_free(name); 74 } 75 } 76 77 /* Serial */ 78 for (i = 0; i < k->serial.count; i++) { 79 if (i >= ARRAY_SIZE(sio->serial)) { 80 warn_report("superio: ignoring %td serial controllers", 81 k->serial.count - ARRAY_SIZE(sio->serial)); 82 break; 83 } 84 if (!k->serial.is_enabled || k->serial.is_enabled(sio, i)) { 85 /* FIXME use a qdev chardev prop instead of serial_hd() */ 86 chr = serial_hd(i); 87 if (chr == NULL) { 88 name = g_strdup_printf("discarding-serial%d", i); 89 chr = qemu_chr_new(name, "null", NULL); 90 } else { 91 name = g_strdup_printf("serial%d", i); 92 } 93 isa = isa_new(TYPE_ISA_SERIAL); 94 d = DEVICE(isa); 95 qdev_prop_set_uint32(d, "index", i); 96 if (k->serial.get_iobase) { 97 qdev_prop_set_uint32(d, "iobase", 98 k->serial.get_iobase(sio, i)); 99 } 100 if (k->serial.get_irq) { 101 qdev_prop_set_uint32(d, "irq", k->serial.get_irq(sio, i)); 102 } 103 qdev_prop_set_chr(d, "chardev", chr); 104 object_property_add_child(OBJECT(dev), name, OBJECT(isa)); 105 isa_realize_and_unref(isa, bus, &error_fatal); 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 g_free(name); 113 } 114 } 115 116 /* Floppy disc */ 117 if (!k->floppy.is_enabled || k->floppy.is_enabled(sio, 0)) { 118 isa = isa_new("isa-fdc"); 119 d = DEVICE(isa); 120 if (k->floppy.get_iobase) { 121 qdev_prop_set_uint32(d, "iobase", k->floppy.get_iobase(sio, 0)); 122 } 123 if (k->floppy.get_irq) { 124 qdev_prop_set_uint32(d, "irq", k->floppy.get_irq(sio, 0)); 125 } 126 /* FIXME use a qdev drive property instead of drive_get() */ 127 drive = drive_get(IF_FLOPPY, 0, 0); 128 if (drive != NULL) { 129 qdev_prop_set_drive(d, "driveA", blk_by_legacy_dinfo(drive), 130 &error_fatal); 131 } 132 /* FIXME use a qdev drive property instead of drive_get() */ 133 drive = drive_get(IF_FLOPPY, 0, 1); 134 if (drive != NULL) { 135 qdev_prop_set_drive(d, "driveB", blk_by_legacy_dinfo(drive), 136 &error_fatal); 137 } 138 object_property_add_child(OBJECT(sio), "isa-fdc", OBJECT(isa)); 139 isa_realize_and_unref(isa, bus, &error_fatal); 140 sio->floppy = isa; 141 trace_superio_create_floppy(0, 142 k->floppy.get_iobase ? 143 k->floppy.get_iobase(sio, 0) : -1, 144 k->floppy.get_irq ? 145 k->floppy.get_irq(sio, 0) : -1); 146 } 147 148 /* Keyboard, mouse */ 149 isa = isa_new(TYPE_I8042); 150 object_property_add_child(OBJECT(sio), TYPE_I8042, OBJECT(isa)); 151 isa_realize_and_unref(isa, bus, &error_fatal); 152 sio->kbc = isa; 153 154 /* IDE */ 155 if (k->ide.count && (!k->ide.is_enabled || k->ide.is_enabled(sio, 0))) { 156 isa = isa_new("isa-ide"); 157 d = DEVICE(isa); 158 if (k->ide.get_iobase) { 159 qdev_prop_set_uint32(d, "iobase", k->ide.get_iobase(sio, 0)); 160 } 161 if (k->ide.get_iobase) { 162 qdev_prop_set_uint32(d, "iobase2", k->ide.get_iobase(sio, 1)); 163 } 164 if (k->ide.get_irq) { 165 qdev_prop_set_uint32(d, "irq", k->ide.get_irq(sio, 0)); 166 } 167 isa_realize_and_unref(isa, bus, &error_fatal); 168 object_property_add_child(OBJECT(sio), "isa-ide", OBJECT(isa)); 169 sio->ide = isa; 170 trace_superio_create_ide(0, 171 k->ide.get_iobase ? 172 k->ide.get_iobase(sio, 0) : -1, 173 k->ide.get_irq ? 174 k->ide.get_irq(sio, 0) : -1); 175 } 176 } 177 178 static void isa_superio_class_init(ObjectClass *oc, void *data) 179 { 180 DeviceClass *dc = DEVICE_CLASS(oc); 181 182 dc->realize = isa_superio_realize; 183 /* Reason: Uses parallel_hds[0] in realize(), so it can't be used twice */ 184 dc->user_creatable = false; 185 } 186 187 static const TypeInfo isa_superio_type_info = { 188 .name = TYPE_ISA_SUPERIO, 189 .parent = TYPE_ISA_DEVICE, 190 .abstract = true, 191 .class_size = sizeof(ISASuperIOClass), 192 .class_init = isa_superio_class_init, 193 }; 194 195 /* SMS FDC37M817 Super I/O */ 196 static void fdc37m81x_class_init(ObjectClass *klass, void *data) 197 { 198 ISASuperIOClass *sc = ISA_SUPERIO_CLASS(klass); 199 200 sc->serial.count = 2; /* NS16C550A */ 201 sc->parallel.count = 1; 202 sc->floppy.count = 1; /* SMSC 82077AA Compatible */ 203 sc->ide.count = 0; 204 } 205 206 static const TypeInfo fdc37m81x_type_info = { 207 .name = TYPE_FDC37M81X_SUPERIO, 208 .parent = TYPE_ISA_SUPERIO, 209 .instance_size = sizeof(ISASuperIODevice), 210 .class_init = fdc37m81x_class_init, 211 }; 212 213 static void isa_superio_register_types(void) 214 { 215 type_register_static(&isa_superio_type_info); 216 type_register_static(&fdc37m81x_type_info); 217 } 218 219 type_init(isa_superio_register_types) 220