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