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Commit | Line | Data |
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f915a115 GH |
1 | /* |
2 | * isa bus support for qdev. | |
3 | * | |
4 | * Copyright (c) 2009 Gerd Hoffmann <kraxel@redhat.com> | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
83c9f4ca | 19 | #include "hw/hw.h" |
83c9089e | 20 | #include "monitor/monitor.h" |
83c9f4ca | 21 | #include "hw/sysbus.h" |
9c17d615 | 22 | #include "sysemu/sysemu.h" |
0d09e41a | 23 | #include "hw/isa/isa.h" |
9157eee1 | 24 | #include "hw/i386/pc.h" |
f915a115 | 25 | |
f915a115 GH |
26 | static ISABus *isabus; |
27 | ||
2091ba23 | 28 | static void isabus_dev_print(Monitor *mon, DeviceState *dev, int indent); |
6a26e119 | 29 | static char *isabus_get_fw_dev_path(DeviceState *dev); |
2091ba23 | 30 | |
0d936928 AL |
31 | static void isa_bus_class_init(ObjectClass *klass, void *data) |
32 | { | |
33 | BusClass *k = BUS_CLASS(klass); | |
34 | ||
35 | k->print_dev = isabus_dev_print; | |
36 | k->get_fw_dev_path = isabus_get_fw_dev_path; | |
37 | } | |
38 | ||
39 | static const TypeInfo isa_bus_info = { | |
40 | .name = TYPE_ISA_BUS, | |
41 | .parent = TYPE_BUS, | |
42 | .instance_size = sizeof(ISABus), | |
43 | .class_init = isa_bus_class_init, | |
f915a115 GH |
44 | }; |
45 | ||
bb2ed009 HP |
46 | ISABus *isa_bus_new(DeviceState *dev, MemoryRegion* address_space, |
47 | MemoryRegion *address_space_io) | |
f915a115 GH |
48 | { |
49 | if (isabus) { | |
50 | fprintf(stderr, "Can't create a second ISA bus\n"); | |
51 | return NULL; | |
52 | } | |
337a3e5c | 53 | if (!dev) { |
2091ba23 | 54 | dev = qdev_create(NULL, "isabus-bridge"); |
e23a1b33 | 55 | qdev_init_nofail(dev); |
2091ba23 | 56 | } |
f915a115 | 57 | |
2ae0e48d | 58 | isabus = ISA_BUS(qbus_create(TYPE_ISA_BUS, dev, NULL)); |
bb2ed009 | 59 | isabus->address_space = address_space; |
c2d0d012 | 60 | isabus->address_space_io = address_space_io; |
f915a115 GH |
61 | return isabus; |
62 | } | |
63 | ||
48a18b3c | 64 | void isa_bus_irqs(ISABus *bus, qemu_irq *irqs) |
f915a115 | 65 | { |
d3c68e4f HP |
66 | if (!bus) { |
67 | hw_error("Can't set isa irqs with no isa bus present."); | |
68 | } | |
69 | bus->irqs = irqs; | |
2091ba23 GH |
70 | } |
71 | ||
3a38d437 | 72 | /* |
ee951a37 | 73 | * isa_get_irq() returns the corresponding qemu_irq entry for the i8259. |
3a38d437 JS |
74 | * |
75 | * This function is only for special cases such as the 'ferr', and | |
76 | * temporary use for normal devices until they are converted to qdev. | |
77 | */ | |
48a18b3c | 78 | qemu_irq isa_get_irq(ISADevice *dev, int isairq) |
3a38d437 | 79 | { |
2ae0e48d | 80 | assert(!dev || ISA_BUS(qdev_get_parent_bus(DEVICE(dev))) == isabus); |
3a38d437 | 81 | if (isairq < 0 || isairq > 15) { |
74782223 | 82 | hw_error("isa irq %d invalid", isairq); |
3a38d437 | 83 | } |
3a38d437 JS |
84 | return isabus->irqs[isairq]; |
85 | } | |
86 | ||
2e15e23b | 87 | void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq) |
f915a115 | 88 | { |
2e15e23b | 89 | assert(dev->nirqs < ARRAY_SIZE(dev->isairq)); |
2e15e23b | 90 | dev->isairq[dev->nirqs] = isairq; |
48a18b3c | 91 | *p = isa_get_irq(dev, isairq); |
f915a115 GH |
92 | dev->nirqs++; |
93 | } | |
94 | ||
0d959524 | 95 | static inline void isa_init_ioport(ISADevice *dev, uint16_t ioport) |
dee41d58 | 96 | { |
0d959524 RH |
97 | if (dev && (dev->ioport_id == 0 || ioport < dev->ioport_id)) { |
98 | dev->ioport_id = ioport; | |
dee41d58 | 99 | } |
dee41d58 GN |
100 | } |
101 | ||
78e20593 RH |
102 | void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start) |
103 | { | |
104 | memory_region_add_subregion(isabus->address_space_io, start, io); | |
0d959524 | 105 | isa_init_ioport(dev, start); |
78e20593 RH |
106 | } |
107 | ||
d7500734 AK |
108 | void isa_register_portio_list(ISADevice *dev, uint16_t start, |
109 | const MemoryRegionPortio *pio_start, | |
110 | void *opaque, const char *name) | |
111 | { | |
848696bf | 112 | PortioList piolist; |
d7500734 AK |
113 | |
114 | /* START is how we should treat DEV, regardless of the actual | |
115 | contents of the portio array. This is how the old code | |
116 | actually handled e.g. the FDC device. */ | |
0d959524 | 117 | isa_init_ioport(dev, start); |
d7500734 | 118 | |
848696bf KB |
119 | /* FIXME: the device should store created PortioList in its state. Note |
120 | that DEV can be NULL here and that single device can register several | |
121 | portio lists. Current implementation is leaking memory allocated | |
122 | in portio_list_init. The leak is not critical because it happens only | |
123 | at initialization time. */ | |
124 | portio_list_init(&piolist, OBJECT(dev), pio_start, opaque, name); | |
125 | portio_list_add(&piolist, isabus->address_space_io, start); | |
d7500734 AK |
126 | } |
127 | ||
c538ca66 AF |
128 | static void isa_device_init(Object *obj) |
129 | { | |
130 | ISADevice *dev = ISA_DEVICE(obj); | |
131 | ||
132 | dev->isairq[0] = -1; | |
133 | dev->isairq[1] = -1; | |
134 | } | |
135 | ||
48a18b3c | 136 | ISADevice *isa_create(ISABus *bus, const char *name) |
f915a115 GH |
137 | { |
138 | DeviceState *dev; | |
f915a115 | 139 | |
75782268 | 140 | if (!bus) { |
74782223 | 141 | hw_error("Tried to create isa device %s with no isa bus present.", |
3f66aa9c | 142 | name); |
f915a115 | 143 | } |
2ae0e48d | 144 | dev = qdev_create(BUS(bus), name); |
8f04ee08 | 145 | return ISA_DEVICE(dev); |
f915a115 | 146 | } |
2091ba23 | 147 | |
48a18b3c | 148 | ISADevice *isa_try_create(ISABus *bus, const char *name) |
86f4a9a5 BS |
149 | { |
150 | DeviceState *dev; | |
151 | ||
75782268 | 152 | if (!bus) { |
86f4a9a5 BS |
153 | hw_error("Tried to create isa device %s with no isa bus present.", |
154 | name); | |
155 | } | |
2ae0e48d | 156 | dev = qdev_try_create(BUS(bus), name); |
8f04ee08 | 157 | return ISA_DEVICE(dev); |
86f4a9a5 BS |
158 | } |
159 | ||
48a18b3c | 160 | ISADevice *isa_create_simple(ISABus *bus, const char *name) |
924f6d72 GH |
161 | { |
162 | ISADevice *dev; | |
163 | ||
48a18b3c | 164 | dev = isa_create(bus, name); |
4a17cc4f | 165 | qdev_init_nofail(DEVICE(dev)); |
924f6d72 GH |
166 | return dev; |
167 | } | |
168 | ||
14e7a645 AJ |
169 | ISADevice *isa_vga_init(ISABus *bus) |
170 | { | |
171 | switch (vga_interface_type) { | |
172 | case VGA_CIRRUS: | |
173 | return isa_create_simple(bus, "isa-cirrus-vga"); | |
174 | case VGA_QXL: | |
175 | fprintf(stderr, "%s: qxl: no PCI bus\n", __func__); | |
176 | return NULL; | |
177 | case VGA_STD: | |
178 | return isa_create_simple(bus, "isa-vga"); | |
179 | case VGA_VMWARE: | |
180 | fprintf(stderr, "%s: vmware_vga: no PCI bus\n", __func__); | |
181 | return NULL; | |
182 | case VGA_NONE: | |
183 | default: | |
184 | return NULL; | |
185 | } | |
186 | } | |
187 | ||
2091ba23 GH |
188 | static void isabus_dev_print(Monitor *mon, DeviceState *dev, int indent) |
189 | { | |
8f04ee08 | 190 | ISADevice *d = ISA_DEVICE(dev); |
2091ba23 GH |
191 | |
192 | if (d->isairq[1] != -1) { | |
193 | monitor_printf(mon, "%*sisa irqs %d,%d\n", indent, "", | |
194 | d->isairq[0], d->isairq[1]); | |
195 | } else if (d->isairq[0] != -1) { | |
196 | monitor_printf(mon, "%*sisa irq %d\n", indent, "", | |
197 | d->isairq[0]); | |
198 | } | |
199 | } | |
200 | ||
999e12bb AL |
201 | static void isabus_bridge_class_init(ObjectClass *klass, void *data) |
202 | { | |
39bffca2 | 203 | DeviceClass *dc = DEVICE_CLASS(klass); |
999e12bb | 204 | |
39bffca2 | 205 | dc->fw_name = "isa"; |
999e12bb AL |
206 | } |
207 | ||
8c43a6f0 | 208 | static const TypeInfo isabus_bridge_info = { |
39bffca2 AL |
209 | .name = "isabus-bridge", |
210 | .parent = TYPE_SYS_BUS_DEVICE, | |
211 | .instance_size = sizeof(SysBusDevice), | |
212 | .class_init = isabus_bridge_class_init, | |
2091ba23 GH |
213 | }; |
214 | ||
39bffca2 AL |
215 | static void isa_device_class_init(ObjectClass *klass, void *data) |
216 | { | |
217 | DeviceClass *k = DEVICE_CLASS(klass); | |
0d936928 | 218 | k->bus_type = TYPE_ISA_BUS; |
39bffca2 AL |
219 | } |
220 | ||
8c43a6f0 | 221 | static const TypeInfo isa_device_type_info = { |
8f04ee08 AL |
222 | .name = TYPE_ISA_DEVICE, |
223 | .parent = TYPE_DEVICE, | |
224 | .instance_size = sizeof(ISADevice), | |
c538ca66 | 225 | .instance_init = isa_device_init, |
8f04ee08 AL |
226 | .abstract = true, |
227 | .class_size = sizeof(ISADeviceClass), | |
39bffca2 | 228 | .class_init = isa_device_class_init, |
8f04ee08 AL |
229 | }; |
230 | ||
83f7d43a | 231 | static void isabus_register_types(void) |
2091ba23 | 232 | { |
0d936928 | 233 | type_register_static(&isa_bus_info); |
39bffca2 | 234 | type_register_static(&isabus_bridge_info); |
8f04ee08 | 235 | type_register_static(&isa_device_type_info); |
2091ba23 GH |
236 | } |
237 | ||
6a26e119 GN |
238 | static char *isabus_get_fw_dev_path(DeviceState *dev) |
239 | { | |
4a17cc4f | 240 | ISADevice *d = ISA_DEVICE(dev); |
6a26e119 GN |
241 | char path[40]; |
242 | int off; | |
243 | ||
244 | off = snprintf(path, sizeof(path), "%s", qdev_fw_name(dev)); | |
ebf47c24 RH |
245 | if (d->ioport_id) { |
246 | snprintf(path + off, sizeof(path) - off, "@%04x", d->ioport_id); | |
6a26e119 GN |
247 | } |
248 | ||
a5cf8262 | 249 | return g_strdup(path); |
6a26e119 GN |
250 | } |
251 | ||
c839adec AK |
252 | MemoryRegion *isa_address_space(ISADevice *dev) |
253 | { | |
bb2ed009 HP |
254 | if (dev) { |
255 | return isa_bus_from_device(dev)->address_space; | |
256 | } | |
257 | ||
258 | return isabus->address_space; | |
c839adec AK |
259 | } |
260 | ||
ac100273 JG |
261 | MemoryRegion *isa_address_space_io(ISADevice *dev) |
262 | { | |
263 | if (dev) { | |
264 | return isa_bus_from_device(dev)->address_space_io; | |
265 | } | |
266 | ||
267 | return isabus->address_space_io; | |
268 | } | |
269 | ||
83f7d43a | 270 | type_init(isabus_register_types) |
9157eee1 MR |
271 | |
272 | static void parallel_init(ISABus *bus, int index, CharDriverState *chr) | |
273 | { | |
274 | DeviceState *dev; | |
275 | ISADevice *isadev; | |
276 | ||
277 | isadev = isa_create(bus, "isa-parallel"); | |
278 | dev = DEVICE(isadev); | |
279 | qdev_prop_set_uint32(dev, "index", index); | |
280 | qdev_prop_set_chr(dev, "chardev", chr); | |
281 | qdev_init_nofail(dev); | |
282 | } | |
283 | ||
284 | void parallel_hds_isa_init(ISABus *bus, int n) | |
285 | { | |
286 | int i; | |
287 | ||
288 | assert(n <= MAX_PARALLEL_PORTS); | |
289 | ||
290 | for (i = 0; i < n; i++) { | |
291 | if (parallel_hds[i]) { | |
292 | parallel_init(bus, i, parallel_hds[i]); | |
293 | } | |
294 | } | |
295 | } |