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