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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200117-1' into...
[qemu.git] / hw / misc / bcm2835_property.c
CommitLineData
04f1ab15
AB		 1/*
2 * Raspberry Pi emulation (c) 2012 Gregory Estrade
3 * This code is licensed under the GNU GPLv2 and later.
4 */
5
c964b660 6#include "qemu/osdep.h"
da34e65c 7#include "qapi/error.h"
04f1ab15 8#include "hw/misc/bcm2835_property.h"
a27bd6c7 9#include "hw/qdev-properties.h"
d6454270 10#include "migration/vmstate.h"
64552b6b 11#include "hw/irq.h"
04f1ab15
AB		 12#include "hw/misc/bcm2835_mbox_defs.h"
13#include "sysemu/dma.h"
03dd024f 14#include "qemu/log.h"
0b8fa32f 15#include "qemu/module.h"
19845504 16#include "trace.h"
04f1ab15
AB		 17
18/* https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface */
19
20static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value)
21{
22 uint32_t tag;
23 uint32_t bufsize;
24 uint32_t tot_len;
25 size_t resplen;
26 uint32_t tmp;
355a8ccc
GE		 27 int n;
28 uint32_t offset, length, color;
193100b5
PM		 29
30 /*
31 * Copy the current state of the framebuffer config; we will update
32 * this copy as we process tags and then ask the framebuffer to use
33 * it at the end.
34 */
35 BCM2835FBConfig fbconfig = s->fbdev->config;
36 bool fbconfig_updated = false;
04f1ab15
AB		 37
38 value &= ~0xf;
39
40 s->addr = value;
41
eab71394 42 tot_len = ldl_le_phys(&s->dma_as, value);
04f1ab15
AB		 43
44 /* @(addr + 4) : Buffer response code */
45 value = s->addr + 8;
46 while (value + 8 <= s->addr + tot_len) {
eab71394
AB		 47 tag = ldl_le_phys(&s->dma_as, value);
48 bufsize = ldl_le_phys(&s->dma_as, value + 4);
04f1ab15
AB		 49 /* @(value + 8) : Request/response indicator */
50 resplen = 0;
51 switch (tag) {
52 case 0x00000000: /* End tag */
53 break;
54 case 0x00000001: /* Get firmware revision */
eab71394 55 stl_le_phys(&s->dma_as, value + 12, 346337);
04f1ab15
AB		 56 resplen = 4;
57 break;
58 case 0x00010001: /* Get board model */
59 qemu_log_mask(LOG_UNIMP,
e1ecf8c8
PMD		 60 "bcm2835_property: 0x%08x get board model NYI\n",
61 tag);
04f1ab15
AB		 62 resplen = 4;
63 break;
64 case 0x00010002: /* Get board revision */
eab71394 65 stl_le_phys(&s->dma_as, value + 12, s->board_rev);
04f1ab15
AB		 66 resplen = 4;
67 break;
68 case 0x00010003: /* Get board MAC address */
69 resplen = sizeof(s->macaddr.a);
70 dma_memory_write(&s->dma_as, value + 12, s->macaddr.a, resplen);
71 break;
72 case 0x00010004: /* Get board serial */
73 qemu_log_mask(LOG_UNIMP,
e1ecf8c8
PMD		 74 "bcm2835_property: 0x%08x get board serial NYI\n",
75 tag);
04f1ab15
AB		 76 resplen = 8;
77 break;
78 case 0x00010005: /* Get ARM memory */
79 /* base */
eab71394 80 stl_le_phys(&s->dma_as, value + 12, 0);
04f1ab15 81 /* size */
355a8ccc
GE		 82 stl_le_phys(&s->dma_as, value + 16, s->fbdev->vcram_base);
83 resplen = 8;
84 break;
85 case 0x00010006: /* Get VC memory */
86 /* base */
87 stl_le_phys(&s->dma_as, value + 12, s->fbdev->vcram_base);
88 /* size */
89 stl_le_phys(&s->dma_as, value + 16, s->fbdev->vcram_size);
04f1ab15
AB		 90 resplen = 8;
91 break;
92 case 0x00028001: /* Set power state */
93 /* Assume that whatever device they asked for exists,
94 * and we'll just claim we set it to the desired state
95 */
eab71394
AB		 96 tmp = ldl_le_phys(&s->dma_as, value + 16);
97 stl_le_phys(&s->dma_as, value + 16, (tmp & 1));
04f1ab15
AB		 98 resplen = 8;
99 break;
100
101 /* Clocks */
102
103 case 0x00030001: /* Get clock state */
eab71394 104 stl_le_phys(&s->dma_as, value + 16, 0x1);
04f1ab15
AB		 105 resplen = 8;
106 break;
107
108 case 0x00038001: /* Set clock state */
109 qemu_log_mask(LOG_UNIMP,
e1ecf8c8
PMD		 110 "bcm2835_property: 0x%08x set clock state NYI\n",
111 tag);
04f1ab15
AB		 112 resplen = 8;
113 break;
114
115 case 0x00030002: /* Get clock rate */
116 case 0x00030004: /* Get max clock rate */
117 case 0x00030007: /* Get min clock rate */
eab71394 118 switch (ldl_le_phys(&s->dma_as, value + 12)) {
04f1ab15 119 case 1: /* EMMC */
eab71394 120 stl_le_phys(&s->dma_as, value + 16, 50000000);
04f1ab15
AB		 121 break;
122 case 2: /* UART */
eab71394 123 stl_le_phys(&s->dma_as, value + 16, 3000000);
04f1ab15
AB		 124 break;
125 default:
eab71394 126 stl_le_phys(&s->dma_as, value + 16, 700000000);
04f1ab15
AB		 127 break;
128 }
129 resplen = 8;
130 break;
131
132 case 0x00038002: /* Set clock rate */
133 case 0x00038004: /* Set max clock rate */
134 case 0x00038007: /* Set min clock rate */
135 qemu_log_mask(LOG_UNIMP,
e1ecf8c8
PMD		 136 "bcm2835_property: 0x%08x set clock rate NYI\n",
137 tag);
04f1ab15
AB		 138 resplen = 8;
139 break;
140
141 /* Temperature */
142
143 case 0x00030006: /* Get temperature */
eab71394 144 stl_le_phys(&s->dma_as, value + 16, 25000);
04f1ab15
AB		 145 resplen = 8;
146 break;
147
148 case 0x0003000A: /* Get max temperature */
eab71394 149 stl_le_phys(&s->dma_as, value + 16, 99000);
04f1ab15
AB		 150 resplen = 8;
151 break;
152
355a8ccc
GE		 153 /* Frame buffer */
154
155 case 0x00040001: /* Allocate buffer */
193100b5 156 stl_le_phys(&s->dma_as, value + 12, fbconfig.base);
27a5dc7b 157 stl_le_phys(&s->dma_as, value + 16,
9a1f03f4 158 bcm2835_fb_get_size(&fbconfig));
355a8ccc
GE		 159 resplen = 8;
160 break;
161 case 0x00048001: /* Release buffer */
162 resplen = 0;
163 break;
164 case 0x00040002: /* Blank screen */
165 resplen = 4;
166 break;
01f18af9
PM		 167 case 0x00044003: /* Test physical display width/height */
168 case 0x00044004: /* Test virtual display width/height */
169 resplen = 8;
170 break;
171 case 0x00048003: /* Set physical display width/height */
193100b5
PM		 172 fbconfig.xres = ldl_le_phys(&s->dma_as, value + 12);
173 fbconfig.yres = ldl_le_phys(&s->dma_as, value + 16);
f8add62c 174 bcm2835_fb_validate_config(&fbconfig);
193100b5 175 fbconfig_updated = true;
f8add62c
PM		 176 /* fall through */
177 case 0x00040003: /* Get physical display width/height */
178 stl_le_phys(&s->dma_as, value + 12, fbconfig.xres);
179 stl_le_phys(&s->dma_as, value + 16, fbconfig.yres);
355a8ccc
GE		 180 resplen = 8;
181 break;
01f18af9
PM		 182 case 0x00048004: /* Set virtual display width/height */
183 fbconfig.xres_virtual = ldl_le_phys(&s->dma_as, value + 12);
184 fbconfig.yres_virtual = ldl_le_phys(&s->dma_as, value + 16);
f8add62c 185 bcm2835_fb_validate_config(&fbconfig);
01f18af9 186 fbconfig_updated = true;
f8add62c
PM		 187 /* fall through */
188 case 0x00040004: /* Get virtual display width/height */
189 stl_le_phys(&s->dma_as, value + 12, fbconfig.xres_virtual);
190 stl_le_phys(&s->dma_as, value + 16, fbconfig.yres_virtual);
01f18af9
PM		 191 resplen = 8;
192 break;
355a8ccc
GE		 193 case 0x00044005: /* Test depth */
194 resplen = 4;
195 break;
196 case 0x00048005: /* Set depth */
193100b5 197 fbconfig.bpp = ldl_le_phys(&s->dma_as, value + 12);
f8add62c 198 bcm2835_fb_validate_config(&fbconfig);
193100b5 199 fbconfig_updated = true;
f8add62c
PM		 200 /* fall through */
201 case 0x00040005: /* Get depth */
202 stl_le_phys(&s->dma_as, value + 12, fbconfig.bpp);
355a8ccc
GE		 203 resplen = 4;
204 break;
205 case 0x00044006: /* Test pixel order */
206 resplen = 4;
207 break;
208 case 0x00048006: /* Set pixel order */
193100b5 209 fbconfig.pixo = ldl_le_phys(&s->dma_as, value + 12);
f8add62c 210 bcm2835_fb_validate_config(&fbconfig);
193100b5 211 fbconfig_updated = true;
f8add62c
PM		 212 /* fall through */
213 case 0x00040006: /* Get pixel order */
214 stl_le_phys(&s->dma_as, value + 12, fbconfig.pixo);
355a8ccc
GE		 215 resplen = 4;
216 break;
217 case 0x00044007: /* Test pixel alpha */
218 resplen = 4;
219 break;
220 case 0x00048007: /* Set alpha */
193100b5 221 fbconfig.alpha = ldl_le_phys(&s->dma_as, value + 12);
f8add62c 222 bcm2835_fb_validate_config(&fbconfig);
193100b5 223 fbconfig_updated = true;
f8add62c
PM		 224 /* fall through */
225 case 0x00040007: /* Get alpha */
226 stl_le_phys(&s->dma_as, value + 12, fbconfig.alpha);
355a8ccc
GE		 227 resplen = 4;
228 break;
229 case 0x00040008: /* Get pitch */
193100b5 230 stl_le_phys(&s->dma_as, value + 12,
9a1f03f4 231 bcm2835_fb_get_pitch(&fbconfig));
355a8ccc
GE		 232 resplen = 4;
233 break;
355a8ccc
GE		 234 case 0x00044009: /* Test virtual offset */
235 resplen = 8;
236 break;
237 case 0x00048009: /* Set virtual offset */
193100b5
PM		 238 fbconfig.xoffset = ldl_le_phys(&s->dma_as, value + 12);
239 fbconfig.yoffset = ldl_le_phys(&s->dma_as, value + 16);
f8add62c 240 bcm2835_fb_validate_config(&fbconfig);
193100b5 241 fbconfig_updated = true;
f8add62c
PM		 242 /* fall through */
243 case 0x00040009: /* Get virtual offset */
244 stl_le_phys(&s->dma_as, value + 12, fbconfig.xoffset);
245 stl_le_phys(&s->dma_as, value + 16, fbconfig.yoffset);
355a8ccc
GE		 246 resplen = 8;
247 break;
248 case 0x0004000a: /* Get/Test/Set overscan */
249 case 0x0004400a:
250 case 0x0004800a:
251 stl_le_phys(&s->dma_as, value + 12, 0);
252 stl_le_phys(&s->dma_as, value + 16, 0);
253 stl_le_phys(&s->dma_as, value + 20, 0);
254 stl_le_phys(&s->dma_as, value + 24, 0);
255 resplen = 16;
256 break;
257 case 0x0004800b: /* Set palette */
258 offset = ldl_le_phys(&s->dma_as, value + 12);
259 length = ldl_le_phys(&s->dma_as, value + 16);
260 n = 0;
261 while (n < length - offset) {
262 color = ldl_le_phys(&s->dma_as, value + 20 + (n << 2));
263 stl_le_phys(&s->dma_as,
264 s->fbdev->vcram_base + ((offset + n) << 2), color);
265 n++;
266 }
267 stl_le_phys(&s->dma_as, value + 12, 0);
268 resplen = 4;
269 break;
04f1ab15
AB		 270
271 case 0x00060001: /* Get DMA channels */
272 /* channels 2-5 */
eab71394 273 stl_le_phys(&s->dma_as, value + 12, 0x003C);
04f1ab15
AB		 274 resplen = 4;
275 break;
276
277 case 0x00050001: /* Get command line */
278 resplen = 0;
279 break;
280
281 default:
e1ecf8c8
PMD		 282 qemu_log_mask(LOG_UNIMP,
283 "bcm2835_property: unhandled tag 0x%08x\n", tag);
04f1ab15
AB		 284 break;
285 }
286
19845504 287 trace_bcm2835_mbox_property(tag, bufsize, resplen);
04f1ab15
AB		 288 if (tag == 0) {
289 break;
290 }
291
eab71394 292 stl_le_phys(&s->dma_as, value + 8, (1 << 31) | resplen);
04f1ab15
AB		 293 value += bufsize + 12;
294 }
295
355a8ccc 296 /* Reconfigure framebuffer if required */
193100b5
PM		 297 if (fbconfig_updated) {
298 bcm2835_fb_reconfigure(s->fbdev, &fbconfig);
355a8ccc
GE		 299 }
300
04f1ab15 301 /* Buffer response code */
eab71394 302 stl_le_phys(&s->dma_as, s->addr + 4, (1 << 31));
04f1ab15
AB		 303}
304
305static uint64_t bcm2835_property_read(void *opaque, hwaddr offset,
306 unsigned size)
307{
308 BCM2835PropertyState *s = opaque;
309 uint32_t res = 0;
310
311 switch (offset) {
312 case MBOX_AS_DATA:
313 res = MBOX_CHAN_PROPERTY | s->addr;
314 s->pending = false;
315 qemu_set_irq(s->mbox_irq, 0);
316 break;
317
318 case MBOX_AS_PENDING:
319 res = s->pending;
320 break;
321
322 default:
323 qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset %"HWADDR_PRIx"\n",
324 __func__, offset);
325 return 0;
326 }
327
328 return res;
329}
330
331static void bcm2835_property_write(void *opaque, hwaddr offset,
332 uint64_t value, unsigned size)
333{
334 BCM2835PropertyState *s = opaque;
335
336 switch (offset) {
337 case MBOX_AS_DATA:
338 /* bcm2835_mbox should check our pending status before pushing */
339 assert(!s->pending);
340 s->pending = true;
341 bcm2835_property_mbox_push(s, value);
342 qemu_set_irq(s->mbox_irq, 1);
343 break;
344
345 default:
346 qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset %"HWADDR_PRIx"\n",
347 __func__, offset);
348 return;
349 }
350}
351
352static const MemoryRegionOps bcm2835_property_ops = {
353 .read = bcm2835_property_read,
354 .write = bcm2835_property_write,
355 .endianness = DEVICE_NATIVE_ENDIAN,
356 .valid.min_access_size = 4,
357 .valid.max_access_size = 4,
358};
359
360static const VMStateDescription vmstate_bcm2835_property = {
361 .name = TYPE_BCM2835_PROPERTY,
362 .version_id = 1,
363 .minimum_version_id = 1,
364 .fields = (VMStateField[]) {
365 VMSTATE_MACADDR(macaddr, BCM2835PropertyState),
366 VMSTATE_UINT32(addr, BCM2835PropertyState),
367 VMSTATE_BOOL(pending, BCM2835PropertyState),
368 VMSTATE_END_OF_LIST()
369 }
370};
371
372static void bcm2835_property_init(Object *obj)
373{
374 BCM2835PropertyState *s = BCM2835_PROPERTY(obj);
375
376 memory_region_init_io(&s->iomem, OBJECT(s), &bcm2835_property_ops, s,
377 TYPE_BCM2835_PROPERTY, 0x10);
378 sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem);
379 sysbus_init_irq(SYS_BUS_DEVICE(s), &s->mbox_irq);
380}
381
382static void bcm2835_property_reset(DeviceState *dev)
383{
384 BCM2835PropertyState *s = BCM2835_PROPERTY(dev);
385
386 s->pending = false;
387}
388
389static void bcm2835_property_realize(DeviceState *dev, Error **errp)
390{
391 BCM2835PropertyState *s = BCM2835_PROPERTY(dev);
392 Object *obj;
393 Error *err = NULL;
394
355a8ccc
GE		 395 obj = object_property_get_link(OBJECT(dev), "fb", &err);
396 if (obj == NULL) {
397 error_setg(errp, "%s: required fb link not found: %s",
398 __func__, error_get_pretty(err));
399 return;
400 }
401
402 s->fbdev = BCM2835_FB(obj);
403
04f1ab15
AB		 404 obj = object_property_get_link(OBJECT(dev), "dma-mr", &err);
405 if (obj == NULL) {
406 error_setg(errp, "%s: required dma-mr link not found: %s",
407 __func__, error_get_pretty(err));
408 return;
409 }
410
411 s->dma_mr = MEMORY_REGION(obj);
e55a8b37 412 address_space_init(&s->dma_as, s->dma_mr, TYPE_BCM2835_PROPERTY "-memory");
04f1ab15
AB		 413
414 /* TODO: connect to MAC address of USB NIC device, once we emulate it */
415 qemu_macaddr_default_if_unset(&s->macaddr);
416
417 bcm2835_property_reset(dev);
418}
419
420static Property bcm2835_property_props[] = {
f0afa731 421 DEFINE_PROP_UINT32("board-rev", BCM2835PropertyState, board_rev, 0),
04f1ab15
AB		 422 DEFINE_PROP_END_OF_LIST()
423};
424
425static void bcm2835_property_class_init(ObjectClass *klass, void *data)
426{
427 DeviceClass *dc = DEVICE_CLASS(klass);
428
429 dc->props = bcm2835_property_props;
430 dc->realize = bcm2835_property_realize;
431 dc->vmsd = &vmstate_bcm2835_property;
432}
433
434static TypeInfo bcm2835_property_info = {
435 .name = TYPE_BCM2835_PROPERTY,
436 .parent = TYPE_SYS_BUS_DEVICE,
437 .instance_size = sizeof(BCM2835PropertyState),
438 .class_init = bcm2835_property_class_init,
439 .instance_init = bcm2835_property_init,
440};
441
442static void bcm2835_property_register_types(void)
443{
444 type_register_static(&bcm2835_property_info);
445}
446
447type_init(bcm2835_property_register_types)
Empty description
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