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27#include "qemu/osdep.h"
28#include "hw/pci/pci.h"
29#include "hw/qdev-properties.h"
30#include "migration/vmstate.h"
31#include "vga_int.h"
32#include "ui/pixel_ops.h"
33#include "qemu/module.h"
34#include "qemu/timer.h"
35#include "hw/loader.h"
36#include "hw/display/edid.h"
37#include "qom/object.h"
38
39enum vga_pci_flags {
40 PCI_VGA_FLAG_ENABLE_MMIO = 1,
41 PCI_VGA_FLAG_ENABLE_QEXT = 2,
42 PCI_VGA_FLAG_ENABLE_EDID = 3,
43};
44
45struct PCIVGAState {
46 PCIDevice dev;
47 VGACommonState vga;
48 uint32_t flags;
49 qemu_edid_info edid_info;
50 MemoryRegion mmio;
51 MemoryRegion mrs[4];
52 uint8_t edid[384];
53};
54
55#define TYPE_PCI_VGA "pci-vga"
56OBJECT_DECLARE_SIMPLE_TYPE(PCIVGAState, PCI_VGA)
57
58static const VMStateDescription vmstate_vga_pci = {
59 .name = "vga",
60 .version_id = 2,
61 .minimum_version_id = 2,
62 .fields = (VMStateField[]) {
63 VMSTATE_PCI_DEVICE(dev, PCIVGAState),
64 VMSTATE_STRUCT(vga, PCIVGAState, 0, vmstate_vga_common, VGACommonState),
65 VMSTATE_END_OF_LIST()
66 }
67};
68
69static uint64_t pci_vga_ioport_read(void *ptr, hwaddr addr,
70 unsigned size)
71{
72 VGACommonState *s = ptr;
73 uint64_t ret = 0;
74
75 switch (size) {
76 case 1:
77 ret = vga_ioport_read(s, addr + 0x3c0);
78 break;
79 case 2:
80 ret = vga_ioport_read(s, addr + 0x3c0);
81 ret |= vga_ioport_read(s, addr + 0x3c1) << 8;
82 break;
83 }
84 return ret;
85}
86
87static void pci_vga_ioport_write(void *ptr, hwaddr addr,
88 uint64_t val, unsigned size)
89{
90 VGACommonState *s = ptr;
91
92 switch (size) {
93 case 1:
94 vga_ioport_write(s, addr + 0x3c0, val);
95 break;
96 case 2:
97
98
99
100
101
102 vga_ioport_write(s, addr + 0x3c0, val & 0xff);
103 vga_ioport_write(s, addr + 0x3c1, (val >> 8) & 0xff);
104 break;
105 }
106}
107
108static const MemoryRegionOps pci_vga_ioport_ops = {
109 .read = pci_vga_ioport_read,
110 .write = pci_vga_ioport_write,
111 .valid.min_access_size = 1,
112 .valid.max_access_size = 4,
113 .impl.min_access_size = 1,
114 .impl.max_access_size = 2,
115 .endianness = DEVICE_LITTLE_ENDIAN,
116};
117
118static uint64_t pci_vga_bochs_read(void *ptr, hwaddr addr,
119 unsigned size)
120{
121 VGACommonState *s = ptr;
122 int index = addr >> 1;
123
124 vbe_ioport_write_index(s, 0, index);
125 return vbe_ioport_read_data(s, 0);
126}
127
128static void pci_vga_bochs_write(void *ptr, hwaddr addr,
129 uint64_t val, unsigned size)
130{
131 VGACommonState *s = ptr;
132 int index = addr >> 1;
133
134 vbe_ioport_write_index(s, 0, index);
135 vbe_ioport_write_data(s, 0, val);
136}
137
138static const MemoryRegionOps pci_vga_bochs_ops = {
139 .read = pci_vga_bochs_read,
140 .write = pci_vga_bochs_write,
141 .valid.min_access_size = 1,
142 .valid.max_access_size = 4,
143 .impl.min_access_size = 2,
144 .impl.max_access_size = 2,
145 .endianness = DEVICE_LITTLE_ENDIAN,
146};
147
148static uint64_t pci_vga_qext_read(void *ptr, hwaddr addr, unsigned size)
149{
150 VGACommonState *s = ptr;
151
152 switch (addr) {
153 case PCI_VGA_QEXT_REG_SIZE:
154 return PCI_VGA_QEXT_SIZE;
155 case PCI_VGA_QEXT_REG_BYTEORDER:
156 return s->big_endian_fb ?
157 PCI_VGA_QEXT_BIG_ENDIAN : PCI_VGA_QEXT_LITTLE_ENDIAN;
158 default:
159 return 0;
160 }
161}
162
163static void pci_vga_qext_write(void *ptr, hwaddr addr,
164 uint64_t val, unsigned size)
165{
166 VGACommonState *s = ptr;
167
168 switch (addr) {
169 case PCI_VGA_QEXT_REG_BYTEORDER:
170 if (val == PCI_VGA_QEXT_BIG_ENDIAN) {
171 s->big_endian_fb = true;
172 }
173 if (val == PCI_VGA_QEXT_LITTLE_ENDIAN) {
174 s->big_endian_fb = false;
175 }
176 break;
177 }
178}
179
180static bool vga_get_big_endian_fb(Object *obj, Error **errp)
181{
182 PCIVGAState *d = PCI_VGA(PCI_DEVICE(obj));
183
184 return d->vga.big_endian_fb;
185}
186
187static void vga_set_big_endian_fb(Object *obj, bool value, Error **errp)
188{
189 PCIVGAState *d = PCI_VGA(PCI_DEVICE(obj));
190
191 d->vga.big_endian_fb = value;
192}
193
194static const MemoryRegionOps pci_vga_qext_ops = {
195 .read = pci_vga_qext_read,
196 .write = pci_vga_qext_write,
197 .valid.min_access_size = 4,
198 .valid.max_access_size = 4,
199 .endianness = DEVICE_LITTLE_ENDIAN,
200};
201
202void pci_std_vga_mmio_region_init(VGACommonState *s,
203 Object *owner,
204 MemoryRegion *parent,
205 MemoryRegion *subs,
206 bool qext, bool edid)
207{
208 PCIVGAState *d = container_of(s, PCIVGAState, vga);
209
210 memory_region_init_io(&subs[0], owner, &pci_vga_ioport_ops, s,
211 "vga ioports remapped", PCI_VGA_IOPORT_SIZE);
212 memory_region_add_subregion(parent, PCI_VGA_IOPORT_OFFSET,
213 &subs[0]);
214
215 memory_region_init_io(&subs[1], owner, &pci_vga_bochs_ops, s,
216 "bochs dispi interface", PCI_VGA_BOCHS_SIZE);
217 memory_region_add_subregion(parent, PCI_VGA_BOCHS_OFFSET,
218 &subs[1]);
219
220 if (qext) {
221 memory_region_init_io(&subs[2], owner, &pci_vga_qext_ops, s,
222 "qemu extended regs", PCI_VGA_QEXT_SIZE);
223 memory_region_add_subregion(parent, PCI_VGA_QEXT_OFFSET,
224 &subs[2]);
225 }
226
227 if (edid) {
228 qemu_edid_generate(d->edid, sizeof(d->edid), &d->edid_info);
229 qemu_edid_region_io(&subs[3], owner, d->edid, sizeof(d->edid));
230 memory_region_add_subregion(parent, 0, &subs[3]);
231 }
232}
233
234static void pci_std_vga_realize(PCIDevice *dev, Error **errp)
235{
236 PCIVGAState *d = PCI_VGA(dev);
237 VGACommonState *s = &d->vga;
238 bool qext = false;
239 bool edid = false;
240
241
242 vga_common_init(s, OBJECT(dev));
243 vga_init(s, OBJECT(dev), pci_address_space(dev), pci_address_space_io(dev),
244 true);
245
246 s->con = graphic_console_init(DEVICE(dev), 0, s->hw_ops, s);
247
248
249 pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->vram);
250
251
252 if (d->flags & (1 << PCI_VGA_FLAG_ENABLE_MMIO)) {
253 memory_region_init_io(&d->mmio, OBJECT(dev), &unassigned_io_ops, NULL,
254 "vga.mmio", PCI_VGA_MMIO_SIZE);
255
256 if (d->flags & (1 << PCI_VGA_FLAG_ENABLE_QEXT)) {
257 qext = true;
258 pci_set_byte(&d->dev.config[PCI_REVISION_ID], 2);
259 }
260 if (d->flags & (1 << PCI_VGA_FLAG_ENABLE_EDID)) {
261 edid = true;
262 }
263 pci_std_vga_mmio_region_init(s, OBJECT(dev), &d->mmio, d->mrs,
264 qext, edid);
265
266 pci_register_bar(&d->dev, 2, PCI_BASE_ADDRESS_SPACE_MEMORY, &d->mmio);
267 }
268}
269
270static void pci_secondary_vga_realize(PCIDevice *dev, Error **errp)
271{
272 PCIVGAState *d = PCI_VGA(dev);
273 VGACommonState *s = &d->vga;
274 bool qext = false;
275 bool edid = false;
276
277
278 vga_common_init(s, OBJECT(dev));
279 s->con = graphic_console_init(DEVICE(dev), 0, s->hw_ops, s);
280
281
282 memory_region_init_io(&d->mmio, OBJECT(dev), &unassigned_io_ops, NULL,
283 "vga.mmio", PCI_VGA_MMIO_SIZE);
284
285 if (d->flags & (1 << PCI_VGA_FLAG_ENABLE_QEXT)) {
286 qext = true;
287 pci_set_byte(&d->dev.config[PCI_REVISION_ID], 2);
288 }
289 if (d->flags & (1 << PCI_VGA_FLAG_ENABLE_EDID)) {
290 edid = true;
291 }
292 pci_std_vga_mmio_region_init(s, OBJECT(dev), &d->mmio, d->mrs, qext, edid);
293
294 pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->vram);
295 pci_register_bar(&d->dev, 2, PCI_BASE_ADDRESS_SPACE_MEMORY, &d->mmio);
296}
297
298static void pci_secondary_vga_exit(PCIDevice *dev)
299{
300 PCIVGAState *d = PCI_VGA(dev);
301 VGACommonState *s = &d->vga;
302
303 graphic_console_close(s->con);
304 memory_region_del_subregion(&d->mmio, &d->mrs[0]);
305 memory_region_del_subregion(&d->mmio, &d->mrs[1]);
306 if (d->flags & (1 << PCI_VGA_FLAG_ENABLE_QEXT)) {
307 memory_region_del_subregion(&d->mmio, &d->mrs[2]);
308 }
309 if (d->flags & (1 << PCI_VGA_FLAG_ENABLE_EDID)) {
310 memory_region_del_subregion(&d->mmio, &d->mrs[3]);
311 }
312}
313
314static void pci_secondary_vga_init(Object *obj)
315{
316
317 object_property_add_bool(obj, "big-endian-framebuffer",
318 vga_get_big_endian_fb, vga_set_big_endian_fb);
319}
320
321static void pci_secondary_vga_reset(DeviceState *dev)
322{
323 PCIVGAState *d = PCI_VGA(PCI_DEVICE(dev));
324 vga_common_reset(&d->vga);
325}
326
327static Property vga_pci_properties[] = {
328 DEFINE_PROP_UINT32("vgamem_mb", PCIVGAState, vga.vram_size_mb, 16),
329 DEFINE_PROP_BIT("mmio", PCIVGAState, flags, PCI_VGA_FLAG_ENABLE_MMIO, true),
330 DEFINE_PROP_BIT("qemu-extended-regs",
331 PCIVGAState, flags, PCI_VGA_FLAG_ENABLE_QEXT, true),
332 DEFINE_PROP_BIT("edid",
333 PCIVGAState, flags, PCI_VGA_FLAG_ENABLE_EDID, true),
334 DEFINE_EDID_PROPERTIES(PCIVGAState, edid_info),
335 DEFINE_PROP_BOOL("global-vmstate", PCIVGAState, vga.global_vmstate, false),
336 DEFINE_PROP_END_OF_LIST(),
337};
338
339static Property secondary_pci_properties[] = {
340 DEFINE_PROP_UINT32("vgamem_mb", PCIVGAState, vga.vram_size_mb, 16),
341 DEFINE_PROP_BIT("qemu-extended-regs",
342 PCIVGAState, flags, PCI_VGA_FLAG_ENABLE_QEXT, true),
343 DEFINE_PROP_BIT("edid",
344 PCIVGAState, flags, PCI_VGA_FLAG_ENABLE_EDID, true),
345 DEFINE_EDID_PROPERTIES(PCIVGAState, edid_info),
346 DEFINE_PROP_END_OF_LIST(),
347};
348
349static void vga_pci_class_init(ObjectClass *klass, void *data)
350{
351 DeviceClass *dc = DEVICE_CLASS(klass);
352 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
353
354 k->vendor_id = PCI_VENDOR_ID_QEMU;
355 k->device_id = PCI_DEVICE_ID_QEMU_VGA;
356 dc->vmsd = &vmstate_vga_pci;
357 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
358}
359
360static const TypeInfo vga_pci_type_info = {
361 .name = TYPE_PCI_VGA,
362 .parent = TYPE_PCI_DEVICE,
363 .instance_size = sizeof(PCIVGAState),
364 .abstract = true,
365 .class_init = vga_pci_class_init,
366 .interfaces = (InterfaceInfo[]) {
367 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
368 { },
369 },
370};
371
372static void vga_class_init(ObjectClass *klass, void *data)
373{
374 DeviceClass *dc = DEVICE_CLASS(klass);
375 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
376
377 k->realize = pci_std_vga_realize;
378 k->romfile = "vgabios-stdvga.bin";
379 k->class_id = PCI_CLASS_DISPLAY_VGA;
380 device_class_set_props(dc, vga_pci_properties);
381 dc->hotpluggable = false;
382
383
384 object_class_property_add_bool(klass, "big-endian-framebuffer",
385 vga_get_big_endian_fb, vga_set_big_endian_fb);
386}
387
388static void secondary_class_init(ObjectClass *klass, void *data)
389{
390 DeviceClass *dc = DEVICE_CLASS(klass);
391 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
392
393 k->realize = pci_secondary_vga_realize;
394 k->exit = pci_secondary_vga_exit;
395 k->class_id = PCI_CLASS_DISPLAY_OTHER;
396 device_class_set_props(dc, secondary_pci_properties);
397 dc->reset = pci_secondary_vga_reset;
398}
399
400static const TypeInfo vga_info = {
401 .name = "VGA",
402 .parent = TYPE_PCI_VGA,
403 .class_init = vga_class_init,
404};
405
406static const TypeInfo secondary_info = {
407 .name = "secondary-vga",
408 .parent = TYPE_PCI_VGA,
409 .instance_init = pci_secondary_vga_init,
410 .class_init = secondary_class_init,
411};
412
413static void vga_register_types(void)
414{
415 type_register_static(&vga_pci_type_info);
416 type_register_static(&vga_info);
417 type_register_static(&secondary_info);
418}
419
420type_init(vga_register_types)
421
