x86/lib/acpi_nhlt.c

293 static void ser8(struct cursor *cur, uint val)
295 	*cur->buf = val;
296 	cur->buf += sizeof(u8);
299 static void ser16(struct cursor *cur, uint val)
301 	put_unaligned_le16(val, cur->buf);
302 	cur->buf += sizeof(u16);
305 static void ser32(struct cursor *cur, uint val)
307 	put_unaligned_le32(val, cur->buf);
308 	cur->buf += sizeof(u32);
311 static void serblob(struct cursor *cur, void *from, size_t sz)
313 	memcpy(cur->buf, from, sz);
314 	cur->buf += sz;
318 				      struct cursor *cur)
320 	log_debug("%zx\n", cur->buf - cur->start);
321 	ser32(cur, cfg->size);
322 	serblob(cur, cfg->capabilities, cfg->size);
325 static void serialise_waveform(struct nhlt_waveform *wave, struct cursor *cur)
327 	log_debug("%zx\n", cur->buf - cur->start);
328 	ser16(cur, wave->tag);
329 	ser16(cur, wave->num_channels);
330 	ser32(cur, wave->samples_per_second);
331 	ser32(cur, wave->bytes_per_second);
332 	ser16(cur, wave->block_align);
333 	ser16(cur, wave->bits_per_sample);
334 	ser16(cur, wave->extra_size);
335 	ser16(cur, wave->valid_bits_per_sample);
336 	ser32(cur, wave->channel_mask);
337 	ser32(cur, wave->sub_format.data1);
338 	ser16(cur, wave->sub_format.data2);
339 	ser16(cur, wave->sub_format.data3);
340 	serblob(cur, wave->sub_format.data4, sizeof(wave->sub_format.data4));
343 static void serialise_format(struct nhlt_format *fmt, struct cursor *cur)
345 	log_debug("%zx\n", cur->buf - cur->start);
346 	serialise_waveform(&fmt->waveform, cur);
347 	serialise_specific_config(&fmt->config, cur);
350 static void serialise_endpoint(struct nhlt_endpoint *endp, struct cursor *cur)
354 	log_debug("%zx\n", cur->buf - cur->start);
355 	ser32(cur, endp->length);
356 	ser8(cur, endp->link_type);
357 	ser8(cur, endp->instance_id);
358 	ser16(cur, endp->vendor_id);
359 	ser16(cur, endp->device_id);
360 	ser16(cur, endp->revision_id);
361 	ser32(cur, endp->subsystem_id);
362 	ser8(cur, endp->device_type);
363 	ser8(cur, endp->direction);
364 	ser8(cur, endp->virtual_bus_id);
365 	serialise_specific_config(&endp->config, cur);
366 	ser8(cur, endp->num_formats);
369 		serialise_format(&endp->formats[i], cur);
372 static void nhlt_serialise_endpoints(struct nhlt *nhlt, struct cursor *cur)
376 	ser8(cur, nhlt->num_endpoints);
379 		serialise_endpoint(&nhlt->endpoints[i], cur);
386 	struct cursor cur;
414 	cur.buf = (void *)(header + 1);
415 	cur.start = (void *)header;
416 	nhlt_serialise_endpoints(nhlt, &cur);
420 	assert(cur.buf - cur.start == sz);