root / hw / isa-bus.c @ a1bc20df
History | View | Annotate | Download (6.9 kB)
1 | f915a115 | Gerd Hoffmann | /*
|
---|---|---|---|
2 | f915a115 | Gerd Hoffmann | * isa bus support for qdev.
|
3 | f915a115 | Gerd Hoffmann | *
|
4 | f915a115 | Gerd Hoffmann | * Copyright (c) 2009 Gerd Hoffmann <kraxel@redhat.com>
|
5 | f915a115 | Gerd Hoffmann | *
|
6 | f915a115 | Gerd Hoffmann | * This library is free software; you can redistribute it and/or
|
7 | f915a115 | Gerd Hoffmann | * modify it under the terms of the GNU Lesser General Public
|
8 | f915a115 | Gerd Hoffmann | * License as published by the Free Software Foundation; either
|
9 | f915a115 | Gerd Hoffmann | * version 2 of the License, or (at your option) any later version.
|
10 | f915a115 | Gerd Hoffmann | *
|
11 | f915a115 | Gerd Hoffmann | * This library is distributed in the hope that it will be useful,
|
12 | f915a115 | Gerd Hoffmann | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 | f915a115 | Gerd Hoffmann | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
14 | f915a115 | Gerd Hoffmann | * Lesser General Public License for more details.
|
15 | f915a115 | Gerd Hoffmann | *
|
16 | f915a115 | Gerd Hoffmann | * You should have received a copy of the GNU Lesser General Public
|
17 | f915a115 | Gerd Hoffmann | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
18 | f915a115 | Gerd Hoffmann | */
|
19 | f915a115 | Gerd Hoffmann | #include "hw.h" |
20 | 2091ba23 | Gerd Hoffmann | #include "monitor.h" |
21 | 2091ba23 | Gerd Hoffmann | #include "sysbus.h" |
22 | 14e7a645 | Aurelien Jarno | #include "sysemu.h" |
23 | f915a115 | Gerd Hoffmann | #include "isa.h" |
24 | c839adec | Avi Kivity | #include "exec-memory.h" |
25 | f915a115 | Gerd Hoffmann | |
26 | f915a115 | Gerd Hoffmann | static ISABus *isabus;
|
27 | a8170e5e | Avi Kivity | hwaddr isa_mem_base = 0;
|
28 | f915a115 | Gerd Hoffmann | |
29 | 2091ba23 | Gerd Hoffmann | static void isabus_dev_print(Monitor *mon, DeviceState *dev, int indent); |
30 | 6a26e119 | Gleb Natapov | static char *isabus_get_fw_dev_path(DeviceState *dev); |
31 | 2091ba23 | Gerd Hoffmann | |
32 | 0d936928 | Anthony Liguori | static void isa_bus_class_init(ObjectClass *klass, void *data) |
33 | 0d936928 | Anthony Liguori | { |
34 | 0d936928 | Anthony Liguori | BusClass *k = BUS_CLASS(klass); |
35 | 0d936928 | Anthony Liguori | |
36 | 0d936928 | Anthony Liguori | k->print_dev = isabus_dev_print; |
37 | 0d936928 | Anthony Liguori | k->get_fw_dev_path = isabus_get_fw_dev_path; |
38 | 0d936928 | Anthony Liguori | } |
39 | 0d936928 | Anthony Liguori | |
40 | 0d936928 | Anthony Liguori | static const TypeInfo isa_bus_info = { |
41 | 0d936928 | Anthony Liguori | .name = TYPE_ISA_BUS, |
42 | 0d936928 | Anthony Liguori | .parent = TYPE_BUS, |
43 | 0d936928 | Anthony Liguori | .instance_size = sizeof(ISABus),
|
44 | 0d936928 | Anthony Liguori | .class_init = isa_bus_class_init, |
45 | f915a115 | Gerd Hoffmann | }; |
46 | f915a115 | Gerd Hoffmann | |
47 | c2d0d012 | Richard Henderson | ISABus *isa_bus_new(DeviceState *dev, MemoryRegion *address_space_io) |
48 | f915a115 | Gerd Hoffmann | { |
49 | f915a115 | Gerd Hoffmann | if (isabus) {
|
50 | f915a115 | Gerd Hoffmann | fprintf(stderr, "Can't create a second ISA bus\n");
|
51 | f915a115 | Gerd Hoffmann | return NULL; |
52 | f915a115 | Gerd Hoffmann | } |
53 | 2091ba23 | Gerd Hoffmann | if (NULL == dev) { |
54 | 2091ba23 | Gerd Hoffmann | dev = qdev_create(NULL, "isabus-bridge"); |
55 | e23a1b33 | Markus Armbruster | qdev_init_nofail(dev); |
56 | 2091ba23 | Gerd Hoffmann | } |
57 | f915a115 | Gerd Hoffmann | |
58 | 0d936928 | Anthony Liguori | isabus = FROM_QBUS(ISABus, qbus_create(TYPE_ISA_BUS, dev, NULL));
|
59 | c2d0d012 | Richard Henderson | isabus->address_space_io = address_space_io; |
60 | f915a115 | Gerd Hoffmann | return isabus;
|
61 | f915a115 | Gerd Hoffmann | } |
62 | f915a115 | Gerd Hoffmann | |
63 | 48a18b3c | Hervé Poussineau | void isa_bus_irqs(ISABus *bus, qemu_irq *irqs)
|
64 | f915a115 | Gerd Hoffmann | { |
65 | d3c68e4f | Hervé Poussineau | if (!bus) {
|
66 | d3c68e4f | Hervé Poussineau | hw_error("Can't set isa irqs with no isa bus present.");
|
67 | d3c68e4f | Hervé Poussineau | } |
68 | d3c68e4f | Hervé Poussineau | bus->irqs = irqs; |
69 | 2091ba23 | Gerd Hoffmann | } |
70 | 2091ba23 | Gerd Hoffmann | |
71 | 3a38d437 | Jes Sorensen | /*
|
72 | ee951a37 | Jan Kiszka | * isa_get_irq() returns the corresponding qemu_irq entry for the i8259.
|
73 | 3a38d437 | Jes Sorensen | *
|
74 | 3a38d437 | Jes Sorensen | * This function is only for special cases such as the 'ferr', and
|
75 | 3a38d437 | Jes Sorensen | * temporary use for normal devices until they are converted to qdev.
|
76 | 3a38d437 | Jes Sorensen | */
|
77 | 48a18b3c | Hervé Poussineau | qemu_irq isa_get_irq(ISADevice *dev, int isairq)
|
78 | 3a38d437 | Jes Sorensen | { |
79 | 48a18b3c | Hervé Poussineau | assert(!dev || DO_UPCAST(ISABus, qbus, dev->qdev.parent_bus) == isabus); |
80 | 3a38d437 | Jes Sorensen | if (isairq < 0 || isairq > 15) { |
81 | 74782223 | Tristan Gingold | hw_error("isa irq %d invalid", isairq);
|
82 | 3a38d437 | Jes Sorensen | } |
83 | 3a38d437 | Jes Sorensen | return isabus->irqs[isairq];
|
84 | 3a38d437 | Jes Sorensen | } |
85 | 3a38d437 | Jes Sorensen | |
86 | 2e15e23b | Gerd Hoffmann | void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq) |
87 | f915a115 | Gerd Hoffmann | { |
88 | 2e15e23b | Gerd Hoffmann | assert(dev->nirqs < ARRAY_SIZE(dev->isairq)); |
89 | 2e15e23b | Gerd Hoffmann | dev->isairq[dev->nirqs] = isairq; |
90 | 48a18b3c | Hervé Poussineau | *p = isa_get_irq(dev, isairq); |
91 | f915a115 | Gerd Hoffmann | dev->nirqs++; |
92 | f915a115 | Gerd Hoffmann | } |
93 | f915a115 | Gerd Hoffmann | |
94 | 0d959524 | Richard Henderson | static inline void isa_init_ioport(ISADevice *dev, uint16_t ioport) |
95 | dee41d58 | Gleb Natapov | { |
96 | 0d959524 | Richard Henderson | if (dev && (dev->ioport_id == 0 || ioport < dev->ioport_id)) { |
97 | 0d959524 | Richard Henderson | dev->ioport_id = ioport; |
98 | dee41d58 | Gleb Natapov | } |
99 | dee41d58 | Gleb Natapov | } |
100 | dee41d58 | Gleb Natapov | |
101 | 78e20593 | Richard Henderson | void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start)
|
102 | 78e20593 | Richard Henderson | { |
103 | 78e20593 | Richard Henderson | memory_region_add_subregion(isabus->address_space_io, start, io); |
104 | 0d959524 | Richard Henderson | isa_init_ioport(dev, start); |
105 | 78e20593 | Richard Henderson | } |
106 | 78e20593 | Richard Henderson | |
107 | d7500734 | Avi Kivity | void isa_register_portio_list(ISADevice *dev, uint16_t start,
|
108 | d7500734 | Avi Kivity | const MemoryRegionPortio *pio_start,
|
109 | d7500734 | Avi Kivity | void *opaque, const char *name) |
110 | d7500734 | Avi Kivity | { |
111 | d7500734 | Avi Kivity | PortioList *piolist = g_new(PortioList, 1);
|
112 | d7500734 | Avi Kivity | |
113 | d7500734 | Avi Kivity | /* START is how we should treat DEV, regardless of the actual
|
114 | d7500734 | Avi Kivity | contents of the portio array. This is how the old code
|
115 | d7500734 | Avi Kivity | actually handled e.g. the FDC device. */
|
116 | 0d959524 | Richard Henderson | isa_init_ioport(dev, start); |
117 | d7500734 | Avi Kivity | |
118 | d7500734 | Avi Kivity | portio_list_init(piolist, pio_start, opaque, name); |
119 | d7500734 | Avi Kivity | portio_list_add(piolist, isabus->address_space_io, start); |
120 | d7500734 | Avi Kivity | } |
121 | d7500734 | Avi Kivity | |
122 | d307af79 | Anthony Liguori | static int isa_qdev_init(DeviceState *qdev) |
123 | f915a115 | Gerd Hoffmann | { |
124 | 8f04ee08 | Anthony Liguori | ISADevice *dev = ISA_DEVICE(qdev); |
125 | 8f04ee08 | Anthony Liguori | ISADeviceClass *klass = ISA_DEVICE_GET_CLASS(dev); |
126 | f915a115 | Gerd Hoffmann | |
127 | 2091ba23 | Gerd Hoffmann | dev->isairq[0] = -1; |
128 | 2091ba23 | Gerd Hoffmann | dev->isairq[1] = -1; |
129 | 81a322d4 | Gerd Hoffmann | |
130 | 8f04ee08 | Anthony Liguori | if (klass->init) {
|
131 | 8f04ee08 | Anthony Liguori | return klass->init(dev);
|
132 | 8f04ee08 | Anthony Liguori | } |
133 | 8f04ee08 | Anthony Liguori | |
134 | 8f04ee08 | Anthony Liguori | return 0; |
135 | 8f04ee08 | Anthony Liguori | } |
136 | 8f04ee08 | Anthony Liguori | |
137 | 48a18b3c | Hervé Poussineau | ISADevice *isa_create(ISABus *bus, const char *name) |
138 | f915a115 | Gerd Hoffmann | { |
139 | f915a115 | Gerd Hoffmann | DeviceState *dev; |
140 | f915a115 | Gerd Hoffmann | |
141 | 75782268 | Hervé Poussineau | if (!bus) {
|
142 | 74782223 | Tristan Gingold | hw_error("Tried to create isa device %s with no isa bus present.",
|
143 | 3f66aa9c | Markus Armbruster | name); |
144 | f915a115 | Gerd Hoffmann | } |
145 | 75782268 | Hervé Poussineau | dev = qdev_create(&bus->qbus, name); |
146 | 8f04ee08 | Anthony Liguori | return ISA_DEVICE(dev);
|
147 | f915a115 | Gerd Hoffmann | } |
148 | 2091ba23 | Gerd Hoffmann | |
149 | 48a18b3c | Hervé Poussineau | ISADevice *isa_try_create(ISABus *bus, const char *name) |
150 | 86f4a9a5 | Blue Swirl | { |
151 | 86f4a9a5 | Blue Swirl | DeviceState *dev; |
152 | 86f4a9a5 | Blue Swirl | |
153 | 75782268 | Hervé Poussineau | if (!bus) {
|
154 | 86f4a9a5 | Blue Swirl | hw_error("Tried to create isa device %s with no isa bus present.",
|
155 | 86f4a9a5 | Blue Swirl | name); |
156 | 86f4a9a5 | Blue Swirl | } |
157 | 75782268 | Hervé Poussineau | dev = qdev_try_create(&bus->qbus, name); |
158 | 8f04ee08 | Anthony Liguori | return ISA_DEVICE(dev);
|
159 | 86f4a9a5 | Blue Swirl | } |
160 | 86f4a9a5 | Blue Swirl | |
161 | 48a18b3c | Hervé Poussineau | ISADevice *isa_create_simple(ISABus *bus, const char *name) |
162 | 924f6d72 | Gerd Hoffmann | { |
163 | 924f6d72 | Gerd Hoffmann | ISADevice *dev; |
164 | 924f6d72 | Gerd Hoffmann | |
165 | 48a18b3c | Hervé Poussineau | dev = isa_create(bus, name); |
166 | 3f66aa9c | Markus Armbruster | qdev_init_nofail(&dev->qdev); |
167 | 924f6d72 | Gerd Hoffmann | return dev;
|
168 | 924f6d72 | Gerd Hoffmann | } |
169 | 924f6d72 | Gerd Hoffmann | |
170 | 14e7a645 | Aurelien Jarno | ISADevice *isa_vga_init(ISABus *bus) |
171 | 14e7a645 | Aurelien Jarno | { |
172 | 14e7a645 | Aurelien Jarno | switch (vga_interface_type) {
|
173 | 14e7a645 | Aurelien Jarno | case VGA_CIRRUS:
|
174 | 14e7a645 | Aurelien Jarno | return isa_create_simple(bus, "isa-cirrus-vga"); |
175 | 14e7a645 | Aurelien Jarno | case VGA_QXL:
|
176 | 14e7a645 | Aurelien Jarno | fprintf(stderr, "%s: qxl: no PCI bus\n", __func__);
|
177 | 14e7a645 | Aurelien Jarno | return NULL; |
178 | 14e7a645 | Aurelien Jarno | case VGA_STD:
|
179 | 14e7a645 | Aurelien Jarno | return isa_create_simple(bus, "isa-vga"); |
180 | 14e7a645 | Aurelien Jarno | case VGA_VMWARE:
|
181 | 14e7a645 | Aurelien Jarno | fprintf(stderr, "%s: vmware_vga: no PCI bus\n", __func__);
|
182 | 14e7a645 | Aurelien Jarno | return NULL; |
183 | 14e7a645 | Aurelien Jarno | case VGA_NONE:
|
184 | 14e7a645 | Aurelien Jarno | default:
|
185 | 14e7a645 | Aurelien Jarno | return NULL; |
186 | 14e7a645 | Aurelien Jarno | } |
187 | 14e7a645 | Aurelien Jarno | } |
188 | 14e7a645 | Aurelien Jarno | |
189 | 2091ba23 | Gerd Hoffmann | static void isabus_dev_print(Monitor *mon, DeviceState *dev, int indent) |
190 | 2091ba23 | Gerd Hoffmann | { |
191 | 8f04ee08 | Anthony Liguori | ISADevice *d = ISA_DEVICE(dev); |
192 | 2091ba23 | Gerd Hoffmann | |
193 | 2091ba23 | Gerd Hoffmann | if (d->isairq[1] != -1) { |
194 | 2091ba23 | Gerd Hoffmann | monitor_printf(mon, "%*sisa irqs %d,%d\n", indent, "", |
195 | 2091ba23 | Gerd Hoffmann | d->isairq[0], d->isairq[1]); |
196 | 2091ba23 | Gerd Hoffmann | } else if (d->isairq[0] != -1) { |
197 | 2091ba23 | Gerd Hoffmann | monitor_printf(mon, "%*sisa irq %d\n", indent, "", |
198 | 2091ba23 | Gerd Hoffmann | d->isairq[0]);
|
199 | 2091ba23 | Gerd Hoffmann | } |
200 | 2091ba23 | Gerd Hoffmann | } |
201 | 2091ba23 | Gerd Hoffmann | |
202 | 81a322d4 | Gerd Hoffmann | static int isabus_bridge_init(SysBusDevice *dev) |
203 | 2091ba23 | Gerd Hoffmann | { |
204 | 2091ba23 | Gerd Hoffmann | /* nothing */
|
205 | 81a322d4 | Gerd Hoffmann | return 0; |
206 | 2091ba23 | Gerd Hoffmann | } |
207 | 2091ba23 | Gerd Hoffmann | |
208 | 999e12bb | Anthony Liguori | static void isabus_bridge_class_init(ObjectClass *klass, void *data) |
209 | 999e12bb | Anthony Liguori | { |
210 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
211 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
212 | 999e12bb | Anthony Liguori | |
213 | 999e12bb | Anthony Liguori | k->init = isabus_bridge_init; |
214 | 39bffca2 | Anthony Liguori | dc->fw_name = "isa";
|
215 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
|
216 | 999e12bb | Anthony Liguori | } |
217 | 999e12bb | Anthony Liguori | |
218 | 39bffca2 | Anthony Liguori | static TypeInfo isabus_bridge_info = {
|
219 | 39bffca2 | Anthony Liguori | .name = "isabus-bridge",
|
220 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
221 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(SysBusDevice),
|
222 | 39bffca2 | Anthony Liguori | .class_init = isabus_bridge_class_init, |
223 | 2091ba23 | Gerd Hoffmann | }; |
224 | 2091ba23 | Gerd Hoffmann | |
225 | 39bffca2 | Anthony Liguori | static void isa_device_class_init(ObjectClass *klass, void *data) |
226 | 39bffca2 | Anthony Liguori | { |
227 | 39bffca2 | Anthony Liguori | DeviceClass *k = DEVICE_CLASS(klass); |
228 | 39bffca2 | Anthony Liguori | k->init = isa_qdev_init; |
229 | 0d936928 | Anthony Liguori | k->bus_type = TYPE_ISA_BUS; |
230 | 39bffca2 | Anthony Liguori | } |
231 | 39bffca2 | Anthony Liguori | |
232 | 8f04ee08 | Anthony Liguori | static TypeInfo isa_device_type_info = {
|
233 | 8f04ee08 | Anthony Liguori | .name = TYPE_ISA_DEVICE, |
234 | 8f04ee08 | Anthony Liguori | .parent = TYPE_DEVICE, |
235 | 8f04ee08 | Anthony Liguori | .instance_size = sizeof(ISADevice),
|
236 | 8f04ee08 | Anthony Liguori | .abstract = true,
|
237 | 8f04ee08 | Anthony Liguori | .class_size = sizeof(ISADeviceClass),
|
238 | 39bffca2 | Anthony Liguori | .class_init = isa_device_class_init, |
239 | 8f04ee08 | Anthony Liguori | }; |
240 | 8f04ee08 | Anthony Liguori | |
241 | 83f7d43a | Andreas Färber | static void isabus_register_types(void) |
242 | 2091ba23 | Gerd Hoffmann | { |
243 | 0d936928 | Anthony Liguori | type_register_static(&isa_bus_info); |
244 | 39bffca2 | Anthony Liguori | type_register_static(&isabus_bridge_info); |
245 | 8f04ee08 | Anthony Liguori | type_register_static(&isa_device_type_info); |
246 | 2091ba23 | Gerd Hoffmann | } |
247 | 2091ba23 | Gerd Hoffmann | |
248 | 6a26e119 | Gleb Natapov | static char *isabus_get_fw_dev_path(DeviceState *dev) |
249 | 6a26e119 | Gleb Natapov | { |
250 | 6a26e119 | Gleb Natapov | ISADevice *d = (ISADevice*)dev; |
251 | 6a26e119 | Gleb Natapov | char path[40]; |
252 | 6a26e119 | Gleb Natapov | int off;
|
253 | 6a26e119 | Gleb Natapov | |
254 | 6a26e119 | Gleb Natapov | off = snprintf(path, sizeof(path), "%s", qdev_fw_name(dev)); |
255 | ebf47c24 | Richard Henderson | if (d->ioport_id) {
|
256 | ebf47c24 | Richard Henderson | snprintf(path + off, sizeof(path) - off, "@%04x", d->ioport_id); |
257 | 6a26e119 | Gleb Natapov | } |
258 | 6a26e119 | Gleb Natapov | |
259 | a5cf8262 | Jim Meyering | return g_strdup(path);
|
260 | 6a26e119 | Gleb Natapov | } |
261 | 6a26e119 | Gleb Natapov | |
262 | c839adec | Avi Kivity | MemoryRegion *isa_address_space(ISADevice *dev) |
263 | c839adec | Avi Kivity | { |
264 | c839adec | Avi Kivity | return get_system_memory();
|
265 | c839adec | Avi Kivity | } |
266 | c839adec | Avi Kivity | |
267 | 83f7d43a | Andreas Färber | type_init(isabus_register_types) |