Commit | Line | Data |
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f142d3bd TR |
1 | /* |
2 | * Copyright (C) 2012 Avionic Design GmbH | |
3 | * | |
96d672e0 TR |
4 | * Permission is hereby granted, free of charge, to any person obtaining a |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sub license, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the | |
12 | * next paragraph) shall be included in all copies or substantial portions | |
13 | * of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
21 | * DEALINGS IN THE SOFTWARE. | |
f142d3bd TR |
22 | */ |
23 | ||
f89aa0b6 | 24 | #include <drm/display/drm_dp.h> |
f142d3bd | 25 | #include <linux/bitops.h> |
72b09896 | 26 | #include <linux/bug.h> |
f142d3bd TR |
27 | #include <linux/errno.h> |
28 | #include <linux/export.h> | |
29 | #include <linux/hdmi.h> | |
30 | #include <linux/string.h> | |
2c676f37 | 31 | #include <linux/device.h> |
f142d3bd | 32 | |
2c676f37 MB |
33 | #define hdmi_log(fmt, ...) dev_printk(level, dev, fmt, ##__VA_ARGS__) |
34 | ||
f26e1de5 | 35 | static u8 hdmi_infoframe_checksum(const u8 *ptr, size_t size) |
f142d3bd | 36 | { |
f142d3bd TR |
37 | u8 csum = 0; |
38 | size_t i; | |
39 | ||
40 | /* compute checksum */ | |
41 | for (i = 0; i < size; i++) | |
42 | csum += ptr[i]; | |
43 | ||
2c676f37 MB |
44 | return 256 - csum; |
45 | } | |
46 | ||
47 | static void hdmi_infoframe_set_checksum(void *buffer, size_t size) | |
48 | { | |
49 | u8 *ptr = buffer; | |
50 | ||
51 | ptr[3] = hdmi_infoframe_checksum(buffer, size); | |
f142d3bd TR |
52 | } |
53 | ||
54 | /** | |
55 | * hdmi_avi_infoframe_init() - initialize an HDMI AVI infoframe | |
56 | * @frame: HDMI AVI infoframe | |
f142d3bd | 57 | */ |
5ee0caf1 | 58 | void hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame) |
f142d3bd TR |
59 | { |
60 | memset(frame, 0, sizeof(*frame)); | |
61 | ||
62 | frame->type = HDMI_INFOFRAME_TYPE_AVI; | |
63 | frame->version = 2; | |
3c6b054d | 64 | frame->length = HDMI_AVI_INFOFRAME_SIZE; |
f142d3bd TR |
65 | } |
66 | EXPORT_SYMBOL(hdmi_avi_infoframe_init); | |
67 | ||
c5e69ab3 VS |
68 | static int hdmi_avi_infoframe_check_only(const struct hdmi_avi_infoframe *frame) |
69 | { | |
70 | if (frame->type != HDMI_INFOFRAME_TYPE_AVI || | |
71 | frame->version != 2 || | |
72 | frame->length != HDMI_AVI_INFOFRAME_SIZE) | |
73 | return -EINVAL; | |
74 | ||
75 | if (frame->picture_aspect > HDMI_PICTURE_ASPECT_16_9) | |
76 | return -EINVAL; | |
77 | ||
78 | return 0; | |
79 | } | |
80 | ||
f142d3bd | 81 | /** |
c5e69ab3 VS |
82 | * hdmi_avi_infoframe_check() - check a HDMI AVI infoframe |
83 | * @frame: HDMI AVI infoframe | |
84 | * | |
85 | * Validates that the infoframe is consistent and updates derived fields | |
86 | * (eg. length) based on other fields. | |
87 | * | |
88 | * Returns 0 on success or a negative error code on failure. | |
89 | */ | |
90 | int hdmi_avi_infoframe_check(struct hdmi_avi_infoframe *frame) | |
91 | { | |
92 | return hdmi_avi_infoframe_check_only(frame); | |
93 | } | |
94 | EXPORT_SYMBOL(hdmi_avi_infoframe_check); | |
95 | ||
96 | /** | |
97 | * hdmi_avi_infoframe_pack_only() - write HDMI AVI infoframe to binary buffer | |
f142d3bd TR |
98 | * @frame: HDMI AVI infoframe |
99 | * @buffer: destination buffer | |
100 | * @size: size of buffer | |
101 | * | |
102 | * Packs the information contained in the @frame structure into a binary | |
103 | * representation that can be written into the corresponding controller | |
104 | * registers. Also computes the checksum as required by section 5.3.5 of | |
105 | * the HDMI 1.4 specification. | |
106 | * | |
107 | * Returns the number of bytes packed into the binary buffer or a negative | |
108 | * error code on failure. | |
109 | */ | |
c5e69ab3 VS |
110 | ssize_t hdmi_avi_infoframe_pack_only(const struct hdmi_avi_infoframe *frame, |
111 | void *buffer, size_t size) | |
f142d3bd TR |
112 | { |
113 | u8 *ptr = buffer; | |
114 | size_t length; | |
c5e69ab3 VS |
115 | int ret; |
116 | ||
117 | ret = hdmi_avi_infoframe_check_only(frame); | |
118 | if (ret) | |
119 | return ret; | |
f142d3bd TR |
120 | |
121 | length = HDMI_INFOFRAME_HEADER_SIZE + frame->length; | |
122 | ||
123 | if (size < length) | |
124 | return -ENOSPC; | |
125 | ||
3b390f62 | 126 | memset(buffer, 0, size); |
f142d3bd TR |
127 | |
128 | ptr[0] = frame->type; | |
129 | ptr[1] = frame->version; | |
130 | ptr[2] = frame->length; | |
131 | ptr[3] = 0; /* checksum */ | |
132 | ||
133 | /* start infoframe payload */ | |
134 | ptr += HDMI_INFOFRAME_HEADER_SIZE; | |
135 | ||
136 | ptr[0] = ((frame->colorspace & 0x3) << 5) | (frame->scan_mode & 0x3); | |
137 | ||
a5ad3dcf LD |
138 | /* |
139 | * Data byte 1, bit 4 has to be set if we provide the active format | |
140 | * aspect ratio | |
141 | */ | |
142 | if (frame->active_aspect & 0xf) | |
f142d3bd TR |
143 | ptr[0] |= BIT(4); |
144 | ||
974e0701 LD |
145 | /* Bit 3 and 2 indicate if we transmit horizontal/vertical bar data */ |
146 | if (frame->top_bar || frame->bottom_bar) | |
f142d3bd TR |
147 | ptr[0] |= BIT(3); |
148 | ||
974e0701 | 149 | if (frame->left_bar || frame->right_bar) |
f142d3bd TR |
150 | ptr[0] |= BIT(2); |
151 | ||
152 | ptr[1] = ((frame->colorimetry & 0x3) << 6) | | |
153 | ((frame->picture_aspect & 0x3) << 4) | | |
154 | (frame->active_aspect & 0xf); | |
155 | ||
156 | ptr[2] = ((frame->extended_colorimetry & 0x7) << 4) | | |
157 | ((frame->quantization_range & 0x3) << 2) | | |
158 | (frame->nups & 0x3); | |
159 | ||
160 | if (frame->itc) | |
161 | ptr[2] |= BIT(7); | |
162 | ||
163 | ptr[3] = frame->video_code & 0x7f; | |
164 | ||
165 | ptr[4] = ((frame->ycc_quantization_range & 0x3) << 6) | | |
166 | ((frame->content_type & 0x3) << 4) | | |
167 | (frame->pixel_repeat & 0xf); | |
168 | ||
169 | ptr[5] = frame->top_bar & 0xff; | |
170 | ptr[6] = (frame->top_bar >> 8) & 0xff; | |
171 | ptr[7] = frame->bottom_bar & 0xff; | |
172 | ptr[8] = (frame->bottom_bar >> 8) & 0xff; | |
173 | ptr[9] = frame->left_bar & 0xff; | |
174 | ptr[10] = (frame->left_bar >> 8) & 0xff; | |
175 | ptr[11] = frame->right_bar & 0xff; | |
176 | ptr[12] = (frame->right_bar >> 8) & 0xff; | |
177 | ||
2c676f37 | 178 | hdmi_infoframe_set_checksum(buffer, length); |
f142d3bd TR |
179 | |
180 | return length; | |
181 | } | |
c5e69ab3 VS |
182 | EXPORT_SYMBOL(hdmi_avi_infoframe_pack_only); |
183 | ||
184 | /** | |
185 | * hdmi_avi_infoframe_pack() - check a HDMI AVI infoframe, | |
186 | * and write it to binary buffer | |
187 | * @frame: HDMI AVI infoframe | |
188 | * @buffer: destination buffer | |
189 | * @size: size of buffer | |
190 | * | |
191 | * Validates that the infoframe is consistent and updates derived fields | |
192 | * (eg. length) based on other fields, after which it packs the information | |
193 | * contained in the @frame structure into a binary representation that | |
194 | * can be written into the corresponding controller registers. This function | |
195 | * also computes the checksum as required by section 5.3.5 of the HDMI 1.4 | |
196 | * specification. | |
197 | * | |
198 | * Returns the number of bytes packed into the binary buffer or a negative | |
199 | * error code on failure. | |
200 | */ | |
201 | ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, | |
202 | void *buffer, size_t size) | |
203 | { | |
204 | int ret; | |
205 | ||
206 | ret = hdmi_avi_infoframe_check(frame); | |
207 | if (ret) | |
208 | return ret; | |
209 | ||
210 | return hdmi_avi_infoframe_pack_only(frame, buffer, size); | |
211 | } | |
f142d3bd TR |
212 | EXPORT_SYMBOL(hdmi_avi_infoframe_pack); |
213 | ||
214 | /** | |
215 | * hdmi_spd_infoframe_init() - initialize an HDMI SPD infoframe | |
216 | * @frame: HDMI SPD infoframe | |
217 | * @vendor: vendor string | |
218 | * @product: product string | |
219 | * | |
220 | * Returns 0 on success or a negative error code on failure. | |
221 | */ | |
222 | int hdmi_spd_infoframe_init(struct hdmi_spd_infoframe *frame, | |
223 | const char *vendor, const char *product) | |
224 | { | |
35bed3fa TZ |
225 | size_t len; |
226 | ||
f142d3bd TR |
227 | memset(frame, 0, sizeof(*frame)); |
228 | ||
229 | frame->type = HDMI_INFOFRAME_TYPE_SPD; | |
230 | frame->version = 1; | |
3c6b054d | 231 | frame->length = HDMI_SPD_INFOFRAME_SIZE; |
f142d3bd | 232 | |
35bed3fa TZ |
233 | len = strlen(vendor); |
234 | memcpy(frame->vendor, vendor, min(len, sizeof(frame->vendor))); | |
235 | len = strlen(product); | |
236 | memcpy(frame->product, product, min(len, sizeof(frame->product))); | |
f142d3bd TR |
237 | |
238 | return 0; | |
239 | } | |
240 | EXPORT_SYMBOL(hdmi_spd_infoframe_init); | |
241 | ||
c5e69ab3 VS |
242 | static int hdmi_spd_infoframe_check_only(const struct hdmi_spd_infoframe *frame) |
243 | { | |
244 | if (frame->type != HDMI_INFOFRAME_TYPE_SPD || | |
245 | frame->version != 1 || | |
246 | frame->length != HDMI_SPD_INFOFRAME_SIZE) | |
247 | return -EINVAL; | |
248 | ||
249 | return 0; | |
250 | } | |
251 | ||
f142d3bd | 252 | /** |
c5e69ab3 VS |
253 | * hdmi_spd_infoframe_check() - check a HDMI SPD infoframe |
254 | * @frame: HDMI SPD infoframe | |
255 | * | |
256 | * Validates that the infoframe is consistent and updates derived fields | |
257 | * (eg. length) based on other fields. | |
258 | * | |
259 | * Returns 0 on success or a negative error code on failure. | |
260 | */ | |
261 | int hdmi_spd_infoframe_check(struct hdmi_spd_infoframe *frame) | |
262 | { | |
263 | return hdmi_spd_infoframe_check_only(frame); | |
264 | } | |
265 | EXPORT_SYMBOL(hdmi_spd_infoframe_check); | |
266 | ||
267 | /** | |
268 | * hdmi_spd_infoframe_pack_only() - write HDMI SPD infoframe to binary buffer | |
f142d3bd TR |
269 | * @frame: HDMI SPD infoframe |
270 | * @buffer: destination buffer | |
271 | * @size: size of buffer | |
272 | * | |
273 | * Packs the information contained in the @frame structure into a binary | |
274 | * representation that can be written into the corresponding controller | |
275 | * registers. Also computes the checksum as required by section 5.3.5 of | |
276 | * the HDMI 1.4 specification. | |
277 | * | |
278 | * Returns the number of bytes packed into the binary buffer or a negative | |
279 | * error code on failure. | |
280 | */ | |
c5e69ab3 VS |
281 | ssize_t hdmi_spd_infoframe_pack_only(const struct hdmi_spd_infoframe *frame, |
282 | void *buffer, size_t size) | |
f142d3bd TR |
283 | { |
284 | u8 *ptr = buffer; | |
285 | size_t length; | |
c5e69ab3 VS |
286 | int ret; |
287 | ||
288 | ret = hdmi_spd_infoframe_check_only(frame); | |
289 | if (ret) | |
290 | return ret; | |
f142d3bd TR |
291 | |
292 | length = HDMI_INFOFRAME_HEADER_SIZE + frame->length; | |
293 | ||
294 | if (size < length) | |
295 | return -ENOSPC; | |
296 | ||
3b390f62 | 297 | memset(buffer, 0, size); |
f142d3bd TR |
298 | |
299 | ptr[0] = frame->type; | |
300 | ptr[1] = frame->version; | |
301 | ptr[2] = frame->length; | |
302 | ptr[3] = 0; /* checksum */ | |
303 | ||
304 | /* start infoframe payload */ | |
305 | ptr += HDMI_INFOFRAME_HEADER_SIZE; | |
306 | ||
307 | memcpy(ptr, frame->vendor, sizeof(frame->vendor)); | |
308 | memcpy(ptr + 8, frame->product, sizeof(frame->product)); | |
309 | ||
310 | ptr[24] = frame->sdi; | |
311 | ||
2c676f37 | 312 | hdmi_infoframe_set_checksum(buffer, length); |
f142d3bd TR |
313 | |
314 | return length; | |
315 | } | |
c5e69ab3 VS |
316 | EXPORT_SYMBOL(hdmi_spd_infoframe_pack_only); |
317 | ||
318 | /** | |
319 | * hdmi_spd_infoframe_pack() - check a HDMI SPD infoframe, | |
320 | * and write it to binary buffer | |
321 | * @frame: HDMI SPD infoframe | |
322 | * @buffer: destination buffer | |
323 | * @size: size of buffer | |
324 | * | |
325 | * Validates that the infoframe is consistent and updates derived fields | |
326 | * (eg. length) based on other fields, after which it packs the information | |
327 | * contained in the @frame structure into a binary representation that | |
328 | * can be written into the corresponding controller registers. This function | |
329 | * also computes the checksum as required by section 5.3.5 of the HDMI 1.4 | |
330 | * specification. | |
331 | * | |
332 | * Returns the number of bytes packed into the binary buffer or a negative | |
333 | * error code on failure. | |
334 | */ | |
335 | ssize_t hdmi_spd_infoframe_pack(struct hdmi_spd_infoframe *frame, | |
336 | void *buffer, size_t size) | |
337 | { | |
338 | int ret; | |
339 | ||
340 | ret = hdmi_spd_infoframe_check(frame); | |
341 | if (ret) | |
342 | return ret; | |
343 | ||
344 | return hdmi_spd_infoframe_pack_only(frame, buffer, size); | |
345 | } | |
f142d3bd TR |
346 | EXPORT_SYMBOL(hdmi_spd_infoframe_pack); |
347 | ||
348 | /** | |
349 | * hdmi_audio_infoframe_init() - initialize an HDMI audio infoframe | |
350 | * @frame: HDMI audio infoframe | |
351 | * | |
352 | * Returns 0 on success or a negative error code on failure. | |
353 | */ | |
354 | int hdmi_audio_infoframe_init(struct hdmi_audio_infoframe *frame) | |
355 | { | |
356 | memset(frame, 0, sizeof(*frame)); | |
357 | ||
358 | frame->type = HDMI_INFOFRAME_TYPE_AUDIO; | |
359 | frame->version = 1; | |
3c6b054d | 360 | frame->length = HDMI_AUDIO_INFOFRAME_SIZE; |
f142d3bd TR |
361 | |
362 | return 0; | |
363 | } | |
364 | EXPORT_SYMBOL(hdmi_audio_infoframe_init); | |
365 | ||
c5e69ab3 VS |
366 | static int hdmi_audio_infoframe_check_only(const struct hdmi_audio_infoframe *frame) |
367 | { | |
368 | if (frame->type != HDMI_INFOFRAME_TYPE_AUDIO || | |
369 | frame->version != 1 || | |
370 | frame->length != HDMI_AUDIO_INFOFRAME_SIZE) | |
371 | return -EINVAL; | |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
376 | /** | |
377 | * hdmi_audio_infoframe_check() - check a HDMI audio infoframe | |
378 | * @frame: HDMI audio infoframe | |
379 | * | |
380 | * Validates that the infoframe is consistent and updates derived fields | |
381 | * (eg. length) based on other fields. | |
382 | * | |
383 | * Returns 0 on success or a negative error code on failure. | |
384 | */ | |
f89aa0b6 | 385 | int hdmi_audio_infoframe_check(const struct hdmi_audio_infoframe *frame) |
c5e69ab3 VS |
386 | { |
387 | return hdmi_audio_infoframe_check_only(frame); | |
388 | } | |
389 | EXPORT_SYMBOL(hdmi_audio_infoframe_check); | |
390 | ||
f89aa0b6 MSP |
391 | static void |
392 | hdmi_audio_infoframe_pack_payload(const struct hdmi_audio_infoframe *frame, | |
393 | u8 *buffer) | |
394 | { | |
395 | u8 channels; | |
396 | ||
397 | if (frame->channels >= 2) | |
398 | channels = frame->channels - 1; | |
399 | else | |
400 | channels = 0; | |
401 | ||
402 | buffer[0] = ((frame->coding_type & 0xf) << 4) | (channels & 0x7); | |
403 | buffer[1] = ((frame->sample_frequency & 0x7) << 2) | | |
404 | (frame->sample_size & 0x3); | |
405 | buffer[2] = frame->coding_type_ext & 0x1f; | |
406 | buffer[3] = frame->channel_allocation; | |
407 | buffer[4] = (frame->level_shift_value & 0xf) << 3; | |
408 | ||
409 | if (frame->downmix_inhibit) | |
410 | buffer[4] |= BIT(7); | |
411 | } | |
412 | ||
f142d3bd | 413 | /** |
c5e69ab3 | 414 | * hdmi_audio_infoframe_pack_only() - write HDMI audio infoframe to binary buffer |
f142d3bd TR |
415 | * @frame: HDMI audio infoframe |
416 | * @buffer: destination buffer | |
417 | * @size: size of buffer | |
418 | * | |
419 | * Packs the information contained in the @frame structure into a binary | |
420 | * representation that can be written into the corresponding controller | |
421 | * registers. Also computes the checksum as required by section 5.3.5 of | |
422 | * the HDMI 1.4 specification. | |
423 | * | |
424 | * Returns the number of bytes packed into the binary buffer or a negative | |
425 | * error code on failure. | |
426 | */ | |
c5e69ab3 VS |
427 | ssize_t hdmi_audio_infoframe_pack_only(const struct hdmi_audio_infoframe *frame, |
428 | void *buffer, size_t size) | |
f142d3bd | 429 | { |
f142d3bd TR |
430 | u8 *ptr = buffer; |
431 | size_t length; | |
c5e69ab3 VS |
432 | int ret; |
433 | ||
434 | ret = hdmi_audio_infoframe_check_only(frame); | |
435 | if (ret) | |
436 | return ret; | |
f142d3bd TR |
437 | |
438 | length = HDMI_INFOFRAME_HEADER_SIZE + frame->length; | |
439 | ||
440 | if (size < length) | |
441 | return -ENOSPC; | |
442 | ||
3b390f62 | 443 | memset(buffer, 0, size); |
f142d3bd | 444 | |
f142d3bd TR |
445 | ptr[0] = frame->type; |
446 | ptr[1] = frame->version; | |
447 | ptr[2] = frame->length; | |
448 | ptr[3] = 0; /* checksum */ | |
449 | ||
f89aa0b6 MSP |
450 | hdmi_audio_infoframe_pack_payload(frame, |
451 | ptr + HDMI_INFOFRAME_HEADER_SIZE); | |
f142d3bd | 452 | |
2c676f37 | 453 | hdmi_infoframe_set_checksum(buffer, length); |
f142d3bd TR |
454 | |
455 | return length; | |
456 | } | |
c5e69ab3 VS |
457 | EXPORT_SYMBOL(hdmi_audio_infoframe_pack_only); |
458 | ||
459 | /** | |
460 | * hdmi_audio_infoframe_pack() - check a HDMI Audio infoframe, | |
461 | * and write it to binary buffer | |
462 | * @frame: HDMI Audio infoframe | |
463 | * @buffer: destination buffer | |
464 | * @size: size of buffer | |
465 | * | |
466 | * Validates that the infoframe is consistent and updates derived fields | |
467 | * (eg. length) based on other fields, after which it packs the information | |
468 | * contained in the @frame structure into a binary representation that | |
469 | * can be written into the corresponding controller registers. This function | |
470 | * also computes the checksum as required by section 5.3.5 of the HDMI 1.4 | |
471 | * specification. | |
472 | * | |
473 | * Returns the number of bytes packed into the binary buffer or a negative | |
474 | * error code on failure. | |
475 | */ | |
476 | ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame, | |
477 | void *buffer, size_t size) | |
478 | { | |
479 | int ret; | |
480 | ||
481 | ret = hdmi_audio_infoframe_check(frame); | |
482 | if (ret) | |
483 | return ret; | |
484 | ||
485 | return hdmi_audio_infoframe_pack_only(frame, buffer, size); | |
486 | } | |
f142d3bd TR |
487 | EXPORT_SYMBOL(hdmi_audio_infoframe_pack); |
488 | ||
f89aa0b6 MSP |
489 | /** |
490 | * hdmi_audio_infoframe_pack_for_dp - Pack a HDMI Audio infoframe for DisplayPort | |
491 | * | |
492 | * @frame: HDMI Audio infoframe | |
493 | * @sdp: Secondary data packet for DisplayPort. | |
494 | * @dp_version: DisplayPort version to be encoded in the header | |
495 | * | |
496 | * Packs a HDMI Audio Infoframe to be sent over DisplayPort. This function | |
497 | * fills the secondary data packet to be used for DisplayPort. | |
498 | * | |
499 | * Return: Number of total written bytes or a negative errno on failure. | |
500 | */ | |
501 | ssize_t | |
502 | hdmi_audio_infoframe_pack_for_dp(const struct hdmi_audio_infoframe *frame, | |
503 | struct dp_sdp *sdp, u8 dp_version) | |
504 | { | |
505 | int ret; | |
506 | ||
507 | ret = hdmi_audio_infoframe_check(frame); | |
508 | if (ret) | |
509 | return ret; | |
510 | ||
511 | memset(sdp->db, 0, sizeof(sdp->db)); | |
512 | ||
513 | /* Secondary-data packet header */ | |
514 | sdp->sdp_header.HB0 = 0; | |
515 | sdp->sdp_header.HB1 = frame->type; | |
516 | sdp->sdp_header.HB2 = DP_SDP_AUDIO_INFOFRAME_HB2; | |
517 | sdp->sdp_header.HB3 = (dp_version & 0x3f) << 2; | |
518 | ||
519 | hdmi_audio_infoframe_pack_payload(frame, sdp->db); | |
520 | ||
521 | /* Return size = frame length + four HB for sdp_header */ | |
522 | return frame->length + 4; | |
523 | } | |
524 | EXPORT_SYMBOL(hdmi_audio_infoframe_pack_for_dp); | |
525 | ||
7d27becb | 526 | /** |
ae84b900 | 527 | * hdmi_vendor_infoframe_init() - initialize an HDMI vendor infoframe |
7d27becb LD |
528 | * @frame: HDMI vendor infoframe |
529 | * | |
530 | * Returns 0 on success or a negative error code on failure. | |
531 | */ | |
ae84b900 | 532 | int hdmi_vendor_infoframe_init(struct hdmi_vendor_infoframe *frame) |
7d27becb LD |
533 | { |
534 | memset(frame, 0, sizeof(*frame)); | |
535 | ||
536 | frame->type = HDMI_INFOFRAME_TYPE_VENDOR; | |
537 | frame->version = 1; | |
538 | ||
6cb3b7f1 | 539 | frame->oui = HDMI_IEEE_OUI; |
af3e95b4 | 540 | |
7d27becb LD |
541 | /* |
542 | * 0 is a valid value for s3d_struct, so we use a special "not set" | |
543 | * value | |
544 | */ | |
545 | frame->s3d_struct = HDMI_3D_STRUCTURE_INVALID; | |
d43be255 | 546 | frame->length = HDMI_VENDOR_INFOFRAME_SIZE; |
7d27becb LD |
547 | |
548 | return 0; | |
549 | } | |
ae84b900 | 550 | EXPORT_SYMBOL(hdmi_vendor_infoframe_init); |
7d27becb | 551 | |
593f4b19 VS |
552 | static int hdmi_vendor_infoframe_length(const struct hdmi_vendor_infoframe *frame) |
553 | { | |
554 | /* for side by side (half) we also need to provide 3D_Ext_Data */ | |
555 | if (frame->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) | |
556 | return 6; | |
557 | else if (frame->vic != 0 || frame->s3d_struct != HDMI_3D_STRUCTURE_INVALID) | |
558 | return 5; | |
559 | else | |
560 | return 4; | |
561 | } | |
562 | ||
c5e69ab3 VS |
563 | static int hdmi_vendor_infoframe_check_only(const struct hdmi_vendor_infoframe *frame) |
564 | { | |
565 | if (frame->type != HDMI_INFOFRAME_TYPE_VENDOR || | |
566 | frame->version != 1 || | |
567 | frame->oui != HDMI_IEEE_OUI) | |
568 | return -EINVAL; | |
569 | ||
570 | /* only one of those can be supplied */ | |
571 | if (frame->vic != 0 && frame->s3d_struct != HDMI_3D_STRUCTURE_INVALID) | |
572 | return -EINVAL; | |
573 | ||
574 | if (frame->length != hdmi_vendor_infoframe_length(frame)) | |
575 | return -EINVAL; | |
576 | ||
577 | return 0; | |
578 | } | |
579 | ||
7d27becb | 580 | /** |
c5e69ab3 VS |
581 | * hdmi_vendor_infoframe_check() - check a HDMI vendor infoframe |
582 | * @frame: HDMI infoframe | |
583 | * | |
584 | * Validates that the infoframe is consistent and updates derived fields | |
585 | * (eg. length) based on other fields. | |
586 | * | |
587 | * Returns 0 on success or a negative error code on failure. | |
588 | */ | |
589 | int hdmi_vendor_infoframe_check(struct hdmi_vendor_infoframe *frame) | |
590 | { | |
591 | frame->length = hdmi_vendor_infoframe_length(frame); | |
592 | ||
593 | return hdmi_vendor_infoframe_check_only(frame); | |
594 | } | |
595 | EXPORT_SYMBOL(hdmi_vendor_infoframe_check); | |
596 | ||
597 | /** | |
598 | * hdmi_vendor_infoframe_pack_only() - write a HDMI vendor infoframe to binary buffer | |
7d27becb LD |
599 | * @frame: HDMI infoframe |
600 | * @buffer: destination buffer | |
601 | * @size: size of buffer | |
602 | * | |
603 | * Packs the information contained in the @frame structure into a binary | |
604 | * representation that can be written into the corresponding controller | |
605 | * registers. Also computes the checksum as required by section 5.3.5 of | |
606 | * the HDMI 1.4 specification. | |
607 | * | |
608 | * Returns the number of bytes packed into the binary buffer or a negative | |
609 | * error code on failure. | |
610 | */ | |
c5e69ab3 VS |
611 | ssize_t hdmi_vendor_infoframe_pack_only(const struct hdmi_vendor_infoframe *frame, |
612 | void *buffer, size_t size) | |
7d27becb LD |
613 | { |
614 | u8 *ptr = buffer; | |
615 | size_t length; | |
c5e69ab3 | 616 | int ret; |
7d27becb | 617 | |
c5e69ab3 VS |
618 | ret = hdmi_vendor_infoframe_check_only(frame); |
619 | if (ret) | |
620 | return ret; | |
7d27becb LD |
621 | |
622 | length = HDMI_INFOFRAME_HEADER_SIZE + frame->length; | |
623 | ||
624 | if (size < length) | |
625 | return -ENOSPC; | |
626 | ||
627 | memset(buffer, 0, size); | |
628 | ||
629 | ptr[0] = frame->type; | |
630 | ptr[1] = frame->version; | |
631 | ptr[2] = frame->length; | |
632 | ptr[3] = 0; /* checksum */ | |
633 | ||
634 | /* HDMI OUI */ | |
635 | ptr[4] = 0x03; | |
636 | ptr[5] = 0x0c; | |
637 | ptr[6] = 0x00; | |
638 | ||
593f4b19 | 639 | if (frame->s3d_struct != HDMI_3D_STRUCTURE_INVALID) { |
7d27becb LD |
640 | ptr[7] = 0x2 << 5; /* video format */ |
641 | ptr[8] = (frame->s3d_struct & 0xf) << 4; | |
642 | if (frame->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) | |
643 | ptr[9] = (frame->s3d_ext_data & 0xf) << 4; | |
593f4b19 VS |
644 | } else if (frame->vic) { |
645 | ptr[7] = 0x1 << 5; /* video format */ | |
646 | ptr[8] = frame->vic; | |
647 | } else { | |
648 | ptr[7] = 0x0 << 5; /* video format */ | |
7d27becb LD |
649 | } |
650 | ||
2c676f37 | 651 | hdmi_infoframe_set_checksum(buffer, length); |
7d27becb LD |
652 | |
653 | return length; | |
654 | } | |
c5e69ab3 VS |
655 | EXPORT_SYMBOL(hdmi_vendor_infoframe_pack_only); |
656 | ||
657 | /** | |
658 | * hdmi_vendor_infoframe_pack() - check a HDMI Vendor infoframe, | |
659 | * and write it to binary buffer | |
660 | * @frame: HDMI Vendor infoframe | |
661 | * @buffer: destination buffer | |
662 | * @size: size of buffer | |
663 | * | |
664 | * Validates that the infoframe is consistent and updates derived fields | |
665 | * (eg. length) based on other fields, after which it packs the information | |
666 | * contained in the @frame structure into a binary representation that | |
667 | * can be written into the corresponding controller registers. This function | |
668 | * also computes the checksum as required by section 5.3.5 of the HDMI 1.4 | |
669 | * specification. | |
670 | * | |
671 | * Returns the number of bytes packed into the binary buffer or a negative | |
672 | * error code on failure. | |
673 | */ | |
674 | ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame, | |
675 | void *buffer, size_t size) | |
676 | { | |
677 | int ret; | |
678 | ||
679 | ret = hdmi_vendor_infoframe_check(frame); | |
680 | if (ret) | |
681 | return ret; | |
682 | ||
683 | return hdmi_vendor_infoframe_pack_only(frame, buffer, size); | |
684 | } | |
ae84b900 | 685 | EXPORT_SYMBOL(hdmi_vendor_infoframe_pack); |
7d27becb | 686 | |
c5e69ab3 VS |
687 | static int |
688 | hdmi_vendor_any_infoframe_check_only(const union hdmi_vendor_any_infoframe *frame) | |
689 | { | |
690 | if (frame->any.type != HDMI_INFOFRAME_TYPE_VENDOR || | |
691 | frame->any.version != 1) | |
692 | return -EINVAL; | |
693 | ||
694 | return 0; | |
695 | } | |
696 | ||
2cdbfd66 US |
697 | /** |
698 | * hdmi_drm_infoframe_init() - initialize an HDMI Dynaminc Range and | |
699 | * mastering infoframe | |
700 | * @frame: HDMI DRM infoframe | |
701 | * | |
702 | * Returns 0 on success or a negative error code on failure. | |
703 | */ | |
704 | int hdmi_drm_infoframe_init(struct hdmi_drm_infoframe *frame) | |
705 | { | |
706 | memset(frame, 0, sizeof(*frame)); | |
707 | ||
708 | frame->type = HDMI_INFOFRAME_TYPE_DRM; | |
709 | frame->version = 1; | |
710 | frame->length = HDMI_DRM_INFOFRAME_SIZE; | |
711 | ||
712 | return 0; | |
713 | } | |
714 | EXPORT_SYMBOL(hdmi_drm_infoframe_init); | |
715 | ||
716 | static int hdmi_drm_infoframe_check_only(const struct hdmi_drm_infoframe *frame) | |
717 | { | |
718 | if (frame->type != HDMI_INFOFRAME_TYPE_DRM || | |
719 | frame->version != 1) | |
720 | return -EINVAL; | |
721 | ||
722 | if (frame->length != HDMI_DRM_INFOFRAME_SIZE) | |
723 | return -EINVAL; | |
724 | ||
725 | return 0; | |
726 | } | |
727 | ||
728 | /** | |
729 | * hdmi_drm_infoframe_check() - check a HDMI DRM infoframe | |
730 | * @frame: HDMI DRM infoframe | |
731 | * | |
732 | * Validates that the infoframe is consistent. | |
733 | * Returns 0 on success or a negative error code on failure. | |
734 | */ | |
735 | int hdmi_drm_infoframe_check(struct hdmi_drm_infoframe *frame) | |
736 | { | |
737 | return hdmi_drm_infoframe_check_only(frame); | |
738 | } | |
739 | EXPORT_SYMBOL(hdmi_drm_infoframe_check); | |
740 | ||
741 | /** | |
742 | * hdmi_drm_infoframe_pack_only() - write HDMI DRM infoframe to binary buffer | |
743 | * @frame: HDMI DRM infoframe | |
744 | * @buffer: destination buffer | |
745 | * @size: size of buffer | |
746 | * | |
747 | * Packs the information contained in the @frame structure into a binary | |
748 | * representation that can be written into the corresponding controller | |
749 | * registers. Also computes the checksum as required by section 5.3.5 of | |
750 | * the HDMI 1.4 specification. | |
751 | * | |
752 | * Returns the number of bytes packed into the binary buffer or a negative | |
753 | * error code on failure. | |
754 | */ | |
755 | ssize_t hdmi_drm_infoframe_pack_only(const struct hdmi_drm_infoframe *frame, | |
756 | void *buffer, size_t size) | |
757 | { | |
758 | u8 *ptr = buffer; | |
759 | size_t length; | |
760 | int i; | |
761 | ||
762 | length = HDMI_INFOFRAME_HEADER_SIZE + frame->length; | |
763 | ||
764 | if (size < length) | |
765 | return -ENOSPC; | |
766 | ||
767 | memset(buffer, 0, size); | |
768 | ||
769 | ptr[0] = frame->type; | |
770 | ptr[1] = frame->version; | |
771 | ptr[2] = frame->length; | |
772 | ptr[3] = 0; /* checksum */ | |
773 | ||
774 | /* start infoframe payload */ | |
775 | ptr += HDMI_INFOFRAME_HEADER_SIZE; | |
776 | ||
777 | *ptr++ = frame->eotf; | |
778 | *ptr++ = frame->metadata_type; | |
779 | ||
780 | for (i = 0; i < 3; i++) { | |
781 | *ptr++ = frame->display_primaries[i].x; | |
782 | *ptr++ = frame->display_primaries[i].x >> 8; | |
783 | *ptr++ = frame->display_primaries[i].y; | |
784 | *ptr++ = frame->display_primaries[i].y >> 8; | |
785 | } | |
786 | ||
787 | *ptr++ = frame->white_point.x; | |
788 | *ptr++ = frame->white_point.x >> 8; | |
789 | ||
790 | *ptr++ = frame->white_point.y; | |
791 | *ptr++ = frame->white_point.y >> 8; | |
792 | ||
793 | *ptr++ = frame->max_display_mastering_luminance; | |
794 | *ptr++ = frame->max_display_mastering_luminance >> 8; | |
795 | ||
796 | *ptr++ = frame->min_display_mastering_luminance; | |
797 | *ptr++ = frame->min_display_mastering_luminance >> 8; | |
798 | ||
799 | *ptr++ = frame->max_cll; | |
800 | *ptr++ = frame->max_cll >> 8; | |
801 | ||
802 | *ptr++ = frame->max_fall; | |
803 | *ptr++ = frame->max_fall >> 8; | |
804 | ||
805 | hdmi_infoframe_set_checksum(buffer, length); | |
806 | ||
807 | return length; | |
808 | } | |
809 | EXPORT_SYMBOL(hdmi_drm_infoframe_pack_only); | |
810 | ||
811 | /** | |
812 | * hdmi_drm_infoframe_pack() - check a HDMI DRM infoframe, | |
813 | * and write it to binary buffer | |
814 | * @frame: HDMI DRM infoframe | |
815 | * @buffer: destination buffer | |
816 | * @size: size of buffer | |
817 | * | |
818 | * Validates that the infoframe is consistent and updates derived fields | |
819 | * (eg. length) based on other fields, after which it packs the information | |
820 | * contained in the @frame structure into a binary representation that | |
821 | * can be written into the corresponding controller registers. This function | |
822 | * also computes the checksum as required by section 5.3.5 of the HDMI 1.4 | |
823 | * specification. | |
824 | * | |
825 | * Returns the number of bytes packed into the binary buffer or a negative | |
826 | * error code on failure. | |
827 | */ | |
828 | ssize_t hdmi_drm_infoframe_pack(struct hdmi_drm_infoframe *frame, | |
829 | void *buffer, size_t size) | |
830 | { | |
831 | int ret; | |
832 | ||
833 | ret = hdmi_drm_infoframe_check(frame); | |
834 | if (ret) | |
835 | return ret; | |
836 | ||
837 | return hdmi_drm_infoframe_pack_only(frame, buffer, size); | |
838 | } | |
839 | EXPORT_SYMBOL(hdmi_drm_infoframe_pack); | |
840 | ||
af3e95b4 | 841 | /* |
c5e69ab3 VS |
842 | * hdmi_vendor_any_infoframe_check() - check a vendor infoframe |
843 | */ | |
844 | static int | |
845 | hdmi_vendor_any_infoframe_check(union hdmi_vendor_any_infoframe *frame) | |
846 | { | |
847 | int ret; | |
848 | ||
849 | ret = hdmi_vendor_any_infoframe_check_only(frame); | |
850 | if (ret) | |
851 | return ret; | |
852 | ||
853 | /* we only know about HDMI vendor infoframes */ | |
854 | if (frame->any.oui != HDMI_IEEE_OUI) | |
855 | return -EINVAL; | |
856 | ||
857 | return hdmi_vendor_infoframe_check(&frame->hdmi); | |
858 | } | |
859 | ||
860 | /* | |
861 | * hdmi_vendor_any_infoframe_pack_only() - write a vendor infoframe to binary buffer | |
f142d3bd | 862 | */ |
ae84b900 | 863 | static ssize_t |
c5e69ab3 VS |
864 | hdmi_vendor_any_infoframe_pack_only(const union hdmi_vendor_any_infoframe *frame, |
865 | void *buffer, size_t size) | |
f142d3bd | 866 | { |
c5e69ab3 VS |
867 | int ret; |
868 | ||
869 | ret = hdmi_vendor_any_infoframe_check_only(frame); | |
870 | if (ret) | |
871 | return ret; | |
872 | ||
af3e95b4 | 873 | /* we only know about HDMI vendor infoframes */ |
6cb3b7f1 | 874 | if (frame->any.oui != HDMI_IEEE_OUI) |
af3e95b4 | 875 | return -EINVAL; |
f142d3bd | 876 | |
c5e69ab3 VS |
877 | return hdmi_vendor_infoframe_pack_only(&frame->hdmi, buffer, size); |
878 | } | |
879 | ||
880 | /* | |
881 | * hdmi_vendor_any_infoframe_pack() - check a vendor infoframe, | |
882 | * and write it to binary buffer | |
883 | */ | |
884 | static ssize_t | |
885 | hdmi_vendor_any_infoframe_pack(union hdmi_vendor_any_infoframe *frame, | |
886 | void *buffer, size_t size) | |
887 | { | |
888 | int ret; | |
889 | ||
890 | ret = hdmi_vendor_any_infoframe_check(frame); | |
891 | if (ret) | |
892 | return ret; | |
893 | ||
894 | return hdmi_vendor_any_infoframe_pack_only(frame, buffer, size); | |
895 | } | |
896 | ||
897 | /** | |
898 | * hdmi_infoframe_check() - check a HDMI infoframe | |
899 | * @frame: HDMI infoframe | |
900 | * | |
901 | * Validates that the infoframe is consistent and updates derived fields | |
902 | * (eg. length) based on other fields. | |
903 | * | |
904 | * Returns 0 on success or a negative error code on failure. | |
905 | */ | |
906 | int | |
907 | hdmi_infoframe_check(union hdmi_infoframe *frame) | |
908 | { | |
909 | switch (frame->any.type) { | |
910 | case HDMI_INFOFRAME_TYPE_AVI: | |
911 | return hdmi_avi_infoframe_check(&frame->avi); | |
912 | case HDMI_INFOFRAME_TYPE_SPD: | |
913 | return hdmi_spd_infoframe_check(&frame->spd); | |
914 | case HDMI_INFOFRAME_TYPE_AUDIO: | |
915 | return hdmi_audio_infoframe_check(&frame->audio); | |
916 | case HDMI_INFOFRAME_TYPE_VENDOR: | |
917 | return hdmi_vendor_any_infoframe_check(&frame->vendor); | |
918 | default: | |
919 | WARN(1, "Bad infoframe type %d\n", frame->any.type); | |
920 | return -EINVAL; | |
921 | } | |
f142d3bd | 922 | } |
c5e69ab3 | 923 | EXPORT_SYMBOL(hdmi_infoframe_check); |
72b09896 DL |
924 | |
925 | /** | |
c5e69ab3 | 926 | * hdmi_infoframe_pack_only() - write a HDMI infoframe to binary buffer |
72b09896 DL |
927 | * @frame: HDMI infoframe |
928 | * @buffer: destination buffer | |
929 | * @size: size of buffer | |
930 | * | |
931 | * Packs the information contained in the @frame structure into a binary | |
932 | * representation that can be written into the corresponding controller | |
933 | * registers. Also computes the checksum as required by section 5.3.5 of | |
934 | * the HDMI 1.4 specification. | |
935 | * | |
936 | * Returns the number of bytes packed into the binary buffer or a negative | |
937 | * error code on failure. | |
938 | */ | |
939 | ssize_t | |
c5e69ab3 VS |
940 | hdmi_infoframe_pack_only(const union hdmi_infoframe *frame, void *buffer, size_t size) |
941 | { | |
942 | ssize_t length; | |
943 | ||
944 | switch (frame->any.type) { | |
945 | case HDMI_INFOFRAME_TYPE_AVI: | |
946 | length = hdmi_avi_infoframe_pack_only(&frame->avi, | |
947 | buffer, size); | |
948 | break; | |
2cdbfd66 US |
949 | case HDMI_INFOFRAME_TYPE_DRM: |
950 | length = hdmi_drm_infoframe_pack_only(&frame->drm, | |
951 | buffer, size); | |
952 | break; | |
c5e69ab3 VS |
953 | case HDMI_INFOFRAME_TYPE_SPD: |
954 | length = hdmi_spd_infoframe_pack_only(&frame->spd, | |
955 | buffer, size); | |
956 | break; | |
957 | case HDMI_INFOFRAME_TYPE_AUDIO: | |
958 | length = hdmi_audio_infoframe_pack_only(&frame->audio, | |
959 | buffer, size); | |
960 | break; | |
961 | case HDMI_INFOFRAME_TYPE_VENDOR: | |
962 | length = hdmi_vendor_any_infoframe_pack_only(&frame->vendor, | |
963 | buffer, size); | |
964 | break; | |
965 | default: | |
966 | WARN(1, "Bad infoframe type %d\n", frame->any.type); | |
967 | length = -EINVAL; | |
968 | } | |
969 | ||
970 | return length; | |
971 | } | |
972 | EXPORT_SYMBOL(hdmi_infoframe_pack_only); | |
973 | ||
974 | /** | |
975 | * hdmi_infoframe_pack() - check a HDMI infoframe, | |
976 | * and write it to binary buffer | |
977 | * @frame: HDMI infoframe | |
978 | * @buffer: destination buffer | |
979 | * @size: size of buffer | |
980 | * | |
981 | * Validates that the infoframe is consistent and updates derived fields | |
982 | * (eg. length) based on other fields, after which it packs the information | |
983 | * contained in the @frame structure into a binary representation that | |
984 | * can be written into the corresponding controller registers. This function | |
985 | * also computes the checksum as required by section 5.3.5 of the HDMI 1.4 | |
986 | * specification. | |
987 | * | |
988 | * Returns the number of bytes packed into the binary buffer or a negative | |
989 | * error code on failure. | |
990 | */ | |
991 | ssize_t | |
992 | hdmi_infoframe_pack(union hdmi_infoframe *frame, | |
993 | void *buffer, size_t size) | |
72b09896 DL |
994 | { |
995 | ssize_t length; | |
996 | ||
997 | switch (frame->any.type) { | |
998 | case HDMI_INFOFRAME_TYPE_AVI: | |
999 | length = hdmi_avi_infoframe_pack(&frame->avi, buffer, size); | |
1000 | break; | |
2cdbfd66 US |
1001 | case HDMI_INFOFRAME_TYPE_DRM: |
1002 | length = hdmi_drm_infoframe_pack(&frame->drm, buffer, size); | |
1003 | break; | |
72b09896 DL |
1004 | case HDMI_INFOFRAME_TYPE_SPD: |
1005 | length = hdmi_spd_infoframe_pack(&frame->spd, buffer, size); | |
1006 | break; | |
1007 | case HDMI_INFOFRAME_TYPE_AUDIO: | |
1008 | length = hdmi_audio_infoframe_pack(&frame->audio, buffer, size); | |
1009 | break; | |
1010 | case HDMI_INFOFRAME_TYPE_VENDOR: | |
ae84b900 LD |
1011 | length = hdmi_vendor_any_infoframe_pack(&frame->vendor, |
1012 | buffer, size); | |
72b09896 DL |
1013 | break; |
1014 | default: | |
1015 | WARN(1, "Bad infoframe type %d\n", frame->any.type); | |
1016 | length = -EINVAL; | |
1017 | } | |
1018 | ||
1019 | return length; | |
1020 | } | |
1021 | EXPORT_SYMBOL(hdmi_infoframe_pack); | |
2c676f37 MB |
1022 | |
1023 | static const char *hdmi_infoframe_type_get_name(enum hdmi_infoframe_type type) | |
1024 | { | |
1025 | if (type < 0x80 || type > 0x9f) | |
1026 | return "Invalid"; | |
1027 | switch (type) { | |
1028 | case HDMI_INFOFRAME_TYPE_VENDOR: | |
1029 | return "Vendor"; | |
1030 | case HDMI_INFOFRAME_TYPE_AVI: | |
1031 | return "Auxiliary Video Information (AVI)"; | |
1032 | case HDMI_INFOFRAME_TYPE_SPD: | |
1033 | return "Source Product Description (SPD)"; | |
1034 | case HDMI_INFOFRAME_TYPE_AUDIO: | |
1035 | return "Audio"; | |
2cdbfd66 US |
1036 | case HDMI_INFOFRAME_TYPE_DRM: |
1037 | return "Dynamic Range and Mastering"; | |
2c676f37 MB |
1038 | } |
1039 | return "Reserved"; | |
1040 | } | |
1041 | ||
1042 | static void hdmi_infoframe_log_header(const char *level, | |
1043 | struct device *dev, | |
468d6a49 | 1044 | const struct hdmi_any_infoframe *frame) |
2c676f37 MB |
1045 | { |
1046 | hdmi_log("HDMI infoframe: %s, version %u, length %u\n", | |
1047 | hdmi_infoframe_type_get_name(frame->type), | |
1048 | frame->version, frame->length); | |
1049 | } | |
1050 | ||
1051 | static const char *hdmi_colorspace_get_name(enum hdmi_colorspace colorspace) | |
1052 | { | |
1053 | switch (colorspace) { | |
1054 | case HDMI_COLORSPACE_RGB: | |
1055 | return "RGB"; | |
1056 | case HDMI_COLORSPACE_YUV422: | |
1057 | return "YCbCr 4:2:2"; | |
1058 | case HDMI_COLORSPACE_YUV444: | |
1059 | return "YCbCr 4:4:4"; | |
1060 | case HDMI_COLORSPACE_YUV420: | |
1061 | return "YCbCr 4:2:0"; | |
1062 | case HDMI_COLORSPACE_RESERVED4: | |
1063 | return "Reserved (4)"; | |
1064 | case HDMI_COLORSPACE_RESERVED5: | |
1065 | return "Reserved (5)"; | |
1066 | case HDMI_COLORSPACE_RESERVED6: | |
1067 | return "Reserved (6)"; | |
1068 | case HDMI_COLORSPACE_IDO_DEFINED: | |
1069 | return "IDO Defined"; | |
1070 | } | |
1071 | return "Invalid"; | |
1072 | } | |
1073 | ||
1074 | static const char *hdmi_scan_mode_get_name(enum hdmi_scan_mode scan_mode) | |
1075 | { | |
1076 | switch (scan_mode) { | |
1077 | case HDMI_SCAN_MODE_NONE: | |
1078 | return "No Data"; | |
1079 | case HDMI_SCAN_MODE_OVERSCAN: | |
1080 | return "Overscan"; | |
1081 | case HDMI_SCAN_MODE_UNDERSCAN: | |
1082 | return "Underscan"; | |
1083 | case HDMI_SCAN_MODE_RESERVED: | |
1084 | return "Reserved"; | |
1085 | } | |
1086 | return "Invalid"; | |
1087 | } | |
1088 | ||
1089 | static const char *hdmi_colorimetry_get_name(enum hdmi_colorimetry colorimetry) | |
1090 | { | |
1091 | switch (colorimetry) { | |
1092 | case HDMI_COLORIMETRY_NONE: | |
1093 | return "No Data"; | |
1094 | case HDMI_COLORIMETRY_ITU_601: | |
1095 | return "ITU601"; | |
1096 | case HDMI_COLORIMETRY_ITU_709: | |
1097 | return "ITU709"; | |
1098 | case HDMI_COLORIMETRY_EXTENDED: | |
1099 | return "Extended"; | |
1100 | } | |
1101 | return "Invalid"; | |
1102 | } | |
1103 | ||
1104 | static const char * | |
1105 | hdmi_picture_aspect_get_name(enum hdmi_picture_aspect picture_aspect) | |
1106 | { | |
1107 | switch (picture_aspect) { | |
1108 | case HDMI_PICTURE_ASPECT_NONE: | |
1109 | return "No Data"; | |
1110 | case HDMI_PICTURE_ASPECT_4_3: | |
1111 | return "4:3"; | |
1112 | case HDMI_PICTURE_ASPECT_16_9: | |
1113 | return "16:9"; | |
a6e78b3e SS |
1114 | case HDMI_PICTURE_ASPECT_64_27: |
1115 | return "64:27"; | |
1116 | case HDMI_PICTURE_ASPECT_256_135: | |
1117 | return "256:135"; | |
2c676f37 MB |
1118 | case HDMI_PICTURE_ASPECT_RESERVED: |
1119 | return "Reserved"; | |
1120 | } | |
1121 | return "Invalid"; | |
1122 | } | |
1123 | ||
1124 | static const char * | |
1125 | hdmi_active_aspect_get_name(enum hdmi_active_aspect active_aspect) | |
1126 | { | |
1127 | if (active_aspect < 0 || active_aspect > 0xf) | |
1128 | return "Invalid"; | |
1129 | ||
1130 | switch (active_aspect) { | |
1131 | case HDMI_ACTIVE_ASPECT_16_9_TOP: | |
1132 | return "16:9 Top"; | |
1133 | case HDMI_ACTIVE_ASPECT_14_9_TOP: | |
1134 | return "14:9 Top"; | |
1135 | case HDMI_ACTIVE_ASPECT_16_9_CENTER: | |
1136 | return "16:9 Center"; | |
1137 | case HDMI_ACTIVE_ASPECT_PICTURE: | |
1138 | return "Same as Picture"; | |
1139 | case HDMI_ACTIVE_ASPECT_4_3: | |
1140 | return "4:3"; | |
1141 | case HDMI_ACTIVE_ASPECT_16_9: | |
1142 | return "16:9"; | |
1143 | case HDMI_ACTIVE_ASPECT_14_9: | |
1144 | return "14:9"; | |
1145 | case HDMI_ACTIVE_ASPECT_4_3_SP_14_9: | |
1146 | return "4:3 SP 14:9"; | |
1147 | case HDMI_ACTIVE_ASPECT_16_9_SP_14_9: | |
1148 | return "16:9 SP 14:9"; | |
1149 | case HDMI_ACTIVE_ASPECT_16_9_SP_4_3: | |
1150 | return "16:9 SP 4:3"; | |
1151 | } | |
1152 | return "Reserved"; | |
1153 | } | |
1154 | ||
1155 | static const char * | |
1156 | hdmi_extended_colorimetry_get_name(enum hdmi_extended_colorimetry ext_col) | |
1157 | { | |
1158 | switch (ext_col) { | |
1159 | case HDMI_EXTENDED_COLORIMETRY_XV_YCC_601: | |
1160 | return "xvYCC 601"; | |
1161 | case HDMI_EXTENDED_COLORIMETRY_XV_YCC_709: | |
1162 | return "xvYCC 709"; | |
1163 | case HDMI_EXTENDED_COLORIMETRY_S_YCC_601: | |
1164 | return "sYCC 601"; | |
463659a0 HV |
1165 | case HDMI_EXTENDED_COLORIMETRY_OPYCC_601: |
1166 | return "opYCC 601"; | |
1167 | case HDMI_EXTENDED_COLORIMETRY_OPRGB: | |
1168 | return "opRGB"; | |
2c676f37 MB |
1169 | case HDMI_EXTENDED_COLORIMETRY_BT2020_CONST_LUM: |
1170 | return "BT.2020 Constant Luminance"; | |
1171 | case HDMI_EXTENDED_COLORIMETRY_BT2020: | |
1172 | return "BT.2020"; | |
1173 | case HDMI_EXTENDED_COLORIMETRY_RESERVED: | |
1174 | return "Reserved"; | |
1175 | } | |
1176 | return "Invalid"; | |
1177 | } | |
1178 | ||
1179 | static const char * | |
1180 | hdmi_quantization_range_get_name(enum hdmi_quantization_range qrange) | |
1181 | { | |
1182 | switch (qrange) { | |
1183 | case HDMI_QUANTIZATION_RANGE_DEFAULT: | |
1184 | return "Default"; | |
1185 | case HDMI_QUANTIZATION_RANGE_LIMITED: | |
1186 | return "Limited"; | |
1187 | case HDMI_QUANTIZATION_RANGE_FULL: | |
1188 | return "Full"; | |
1189 | case HDMI_QUANTIZATION_RANGE_RESERVED: | |
1190 | return "Reserved"; | |
1191 | } | |
1192 | return "Invalid"; | |
1193 | } | |
1194 | ||
1195 | static const char *hdmi_nups_get_name(enum hdmi_nups nups) | |
1196 | { | |
1197 | switch (nups) { | |
1198 | case HDMI_NUPS_UNKNOWN: | |
1199 | return "Unknown Non-uniform Scaling"; | |
1200 | case HDMI_NUPS_HORIZONTAL: | |
1201 | return "Horizontally Scaled"; | |
1202 | case HDMI_NUPS_VERTICAL: | |
1203 | return "Vertically Scaled"; | |
1204 | case HDMI_NUPS_BOTH: | |
1205 | return "Horizontally and Vertically Scaled"; | |
1206 | } | |
1207 | return "Invalid"; | |
1208 | } | |
1209 | ||
1210 | static const char * | |
1211 | hdmi_ycc_quantization_range_get_name(enum hdmi_ycc_quantization_range qrange) | |
1212 | { | |
1213 | switch (qrange) { | |
1214 | case HDMI_YCC_QUANTIZATION_RANGE_LIMITED: | |
1215 | return "Limited"; | |
1216 | case HDMI_YCC_QUANTIZATION_RANGE_FULL: | |
1217 | return "Full"; | |
1218 | } | |
1219 | return "Invalid"; | |
1220 | } | |
1221 | ||
1222 | static const char * | |
1223 | hdmi_content_type_get_name(enum hdmi_content_type content_type) | |
1224 | { | |
1225 | switch (content_type) { | |
1226 | case HDMI_CONTENT_TYPE_GRAPHICS: | |
1227 | return "Graphics"; | |
1228 | case HDMI_CONTENT_TYPE_PHOTO: | |
1229 | return "Photo"; | |
1230 | case HDMI_CONTENT_TYPE_CINEMA: | |
1231 | return "Cinema"; | |
1232 | case HDMI_CONTENT_TYPE_GAME: | |
1233 | return "Game"; | |
1234 | } | |
1235 | return "Invalid"; | |
1236 | } | |
1237 | ||
2c676f37 MB |
1238 | static void hdmi_avi_infoframe_log(const char *level, |
1239 | struct device *dev, | |
468d6a49 | 1240 | const struct hdmi_avi_infoframe *frame) |
2c676f37 MB |
1241 | { |
1242 | hdmi_infoframe_log_header(level, dev, | |
468d6a49 | 1243 | (const struct hdmi_any_infoframe *)frame); |
2c676f37 MB |
1244 | |
1245 | hdmi_log(" colorspace: %s\n", | |
1246 | hdmi_colorspace_get_name(frame->colorspace)); | |
1247 | hdmi_log(" scan mode: %s\n", | |
1248 | hdmi_scan_mode_get_name(frame->scan_mode)); | |
1249 | hdmi_log(" colorimetry: %s\n", | |
1250 | hdmi_colorimetry_get_name(frame->colorimetry)); | |
1251 | hdmi_log(" picture aspect: %s\n", | |
1252 | hdmi_picture_aspect_get_name(frame->picture_aspect)); | |
1253 | hdmi_log(" active aspect: %s\n", | |
1254 | hdmi_active_aspect_get_name(frame->active_aspect)); | |
1255 | hdmi_log(" itc: %s\n", frame->itc ? "IT Content" : "No Data"); | |
1256 | hdmi_log(" extended colorimetry: %s\n", | |
1257 | hdmi_extended_colorimetry_get_name(frame->extended_colorimetry)); | |
1258 | hdmi_log(" quantization range: %s\n", | |
1259 | hdmi_quantization_range_get_name(frame->quantization_range)); | |
1260 | hdmi_log(" nups: %s\n", hdmi_nups_get_name(frame->nups)); | |
1261 | hdmi_log(" video code: %u\n", frame->video_code); | |
1262 | hdmi_log(" ycc quantization range: %s\n", | |
1263 | hdmi_ycc_quantization_range_get_name(frame->ycc_quantization_range)); | |
1264 | hdmi_log(" hdmi content type: %s\n", | |
1265 | hdmi_content_type_get_name(frame->content_type)); | |
1266 | hdmi_log(" pixel repeat: %u\n", frame->pixel_repeat); | |
1267 | hdmi_log(" bar top %u, bottom %u, left %u, right %u\n", | |
1268 | frame->top_bar, frame->bottom_bar, | |
1269 | frame->left_bar, frame->right_bar); | |
1270 | } | |
1271 | ||
1272 | static const char *hdmi_spd_sdi_get_name(enum hdmi_spd_sdi sdi) | |
1273 | { | |
1274 | if (sdi < 0 || sdi > 0xff) | |
1275 | return "Invalid"; | |
1276 | switch (sdi) { | |
1277 | case HDMI_SPD_SDI_UNKNOWN: | |
1278 | return "Unknown"; | |
1279 | case HDMI_SPD_SDI_DSTB: | |
1280 | return "Digital STB"; | |
1281 | case HDMI_SPD_SDI_DVDP: | |
1282 | return "DVD Player"; | |
1283 | case HDMI_SPD_SDI_DVHS: | |
1284 | return "D-VHS"; | |
1285 | case HDMI_SPD_SDI_HDDVR: | |
1286 | return "HDD Videorecorder"; | |
1287 | case HDMI_SPD_SDI_DVC: | |
1288 | return "DVC"; | |
1289 | case HDMI_SPD_SDI_DSC: | |
1290 | return "DSC"; | |
1291 | case HDMI_SPD_SDI_VCD: | |
1292 | return "Video CD"; | |
1293 | case HDMI_SPD_SDI_GAME: | |
1294 | return "Game"; | |
1295 | case HDMI_SPD_SDI_PC: | |
1296 | return "PC General"; | |
1297 | case HDMI_SPD_SDI_BD: | |
1298 | return "Blu-Ray Disc (BD)"; | |
1299 | case HDMI_SPD_SDI_SACD: | |
1300 | return "Super Audio CD"; | |
1301 | case HDMI_SPD_SDI_HDDVD: | |
1302 | return "HD DVD"; | |
1303 | case HDMI_SPD_SDI_PMP: | |
1304 | return "PMP"; | |
1305 | } | |
1306 | return "Reserved"; | |
1307 | } | |
1308 | ||
2c676f37 MB |
1309 | static void hdmi_spd_infoframe_log(const char *level, |
1310 | struct device *dev, | |
468d6a49 | 1311 | const struct hdmi_spd_infoframe *frame) |
2c676f37 MB |
1312 | { |
1313 | u8 buf[17]; | |
1314 | ||
1315 | hdmi_infoframe_log_header(level, dev, | |
468d6a49 | 1316 | (const struct hdmi_any_infoframe *)frame); |
2c676f37 MB |
1317 | |
1318 | memset(buf, 0, sizeof(buf)); | |
1319 | ||
1320 | strncpy(buf, frame->vendor, 8); | |
1321 | hdmi_log(" vendor: %s\n", buf); | |
1322 | strncpy(buf, frame->product, 16); | |
1323 | hdmi_log(" product: %s\n", buf); | |
1324 | hdmi_log(" source device information: %s (0x%x)\n", | |
1325 | hdmi_spd_sdi_get_name(frame->sdi), frame->sdi); | |
1326 | } | |
1327 | ||
1328 | static const char * | |
1329 | hdmi_audio_coding_type_get_name(enum hdmi_audio_coding_type coding_type) | |
1330 | { | |
1331 | switch (coding_type) { | |
1332 | case HDMI_AUDIO_CODING_TYPE_STREAM: | |
1333 | return "Refer to Stream Header"; | |
1334 | case HDMI_AUDIO_CODING_TYPE_PCM: | |
1335 | return "PCM"; | |
1336 | case HDMI_AUDIO_CODING_TYPE_AC3: | |
1337 | return "AC-3"; | |
1338 | case HDMI_AUDIO_CODING_TYPE_MPEG1: | |
1339 | return "MPEG1"; | |
1340 | case HDMI_AUDIO_CODING_TYPE_MP3: | |
1341 | return "MP3"; | |
1342 | case HDMI_AUDIO_CODING_TYPE_MPEG2: | |
1343 | return "MPEG2"; | |
1344 | case HDMI_AUDIO_CODING_TYPE_AAC_LC: | |
1345 | return "AAC"; | |
1346 | case HDMI_AUDIO_CODING_TYPE_DTS: | |
1347 | return "DTS"; | |
1348 | case HDMI_AUDIO_CODING_TYPE_ATRAC: | |
1349 | return "ATRAC"; | |
1350 | case HDMI_AUDIO_CODING_TYPE_DSD: | |
1351 | return "One Bit Audio"; | |
1352 | case HDMI_AUDIO_CODING_TYPE_EAC3: | |
1353 | return "Dolby Digital +"; | |
1354 | case HDMI_AUDIO_CODING_TYPE_DTS_HD: | |
1355 | return "DTS-HD"; | |
1356 | case HDMI_AUDIO_CODING_TYPE_MLP: | |
1357 | return "MAT (MLP)"; | |
1358 | case HDMI_AUDIO_CODING_TYPE_DST: | |
1359 | return "DST"; | |
1360 | case HDMI_AUDIO_CODING_TYPE_WMA_PRO: | |
1361 | return "WMA PRO"; | |
1362 | case HDMI_AUDIO_CODING_TYPE_CXT: | |
1363 | return "Refer to CXT"; | |
1364 | } | |
1365 | return "Invalid"; | |
1366 | } | |
1367 | ||
1368 | static const char * | |
1369 | hdmi_audio_sample_size_get_name(enum hdmi_audio_sample_size sample_size) | |
1370 | { | |
1371 | switch (sample_size) { | |
1372 | case HDMI_AUDIO_SAMPLE_SIZE_STREAM: | |
1373 | return "Refer to Stream Header"; | |
1374 | case HDMI_AUDIO_SAMPLE_SIZE_16: | |
1375 | return "16 bit"; | |
1376 | case HDMI_AUDIO_SAMPLE_SIZE_20: | |
1377 | return "20 bit"; | |
1378 | case HDMI_AUDIO_SAMPLE_SIZE_24: | |
1379 | return "24 bit"; | |
1380 | } | |
1381 | return "Invalid"; | |
1382 | } | |
1383 | ||
1384 | static const char * | |
1385 | hdmi_audio_sample_frequency_get_name(enum hdmi_audio_sample_frequency freq) | |
1386 | { | |
1387 | switch (freq) { | |
1388 | case HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM: | |
1389 | return "Refer to Stream Header"; | |
1390 | case HDMI_AUDIO_SAMPLE_FREQUENCY_32000: | |
1391 | return "32 kHz"; | |
1392 | case HDMI_AUDIO_SAMPLE_FREQUENCY_44100: | |
1393 | return "44.1 kHz (CD)"; | |
1394 | case HDMI_AUDIO_SAMPLE_FREQUENCY_48000: | |
1395 | return "48 kHz"; | |
1396 | case HDMI_AUDIO_SAMPLE_FREQUENCY_88200: | |
1397 | return "88.2 kHz"; | |
1398 | case HDMI_AUDIO_SAMPLE_FREQUENCY_96000: | |
1399 | return "96 kHz"; | |
1400 | case HDMI_AUDIO_SAMPLE_FREQUENCY_176400: | |
1401 | return "176.4 kHz"; | |
1402 | case HDMI_AUDIO_SAMPLE_FREQUENCY_192000: | |
1403 | return "192 kHz"; | |
1404 | } | |
1405 | return "Invalid"; | |
1406 | } | |
1407 | ||
1408 | static const char * | |
1409 | hdmi_audio_coding_type_ext_get_name(enum hdmi_audio_coding_type_ext ctx) | |
1410 | { | |
1411 | if (ctx < 0 || ctx > 0x1f) | |
1412 | return "Invalid"; | |
1413 | ||
1414 | switch (ctx) { | |
dc189053 | 1415 | case HDMI_AUDIO_CODING_TYPE_EXT_CT: |
2c676f37 MB |
1416 | return "Refer to CT"; |
1417 | case HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC: | |
1418 | return "HE AAC"; | |
1419 | case HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2: | |
1420 | return "HE AAC v2"; | |
1421 | case HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND: | |
1422 | return "MPEG SURROUND"; | |
1423 | case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC: | |
1424 | return "MPEG-4 HE AAC"; | |
1425 | case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_V2: | |
1426 | return "MPEG-4 HE AAC v2"; | |
1427 | case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC: | |
1428 | return "MPEG-4 AAC LC"; | |
1429 | case HDMI_AUDIO_CODING_TYPE_EXT_DRA: | |
1430 | return "DRA"; | |
1431 | case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_SURROUND: | |
1432 | return "MPEG-4 HE AAC + MPEG Surround"; | |
1433 | case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC_SURROUND: | |
1434 | return "MPEG-4 AAC LC + MPEG Surround"; | |
1435 | } | |
1436 | return "Reserved"; | |
1437 | } | |
1438 | ||
2c676f37 MB |
1439 | static void hdmi_audio_infoframe_log(const char *level, |
1440 | struct device *dev, | |
468d6a49 | 1441 | const struct hdmi_audio_infoframe *frame) |
2c676f37 MB |
1442 | { |
1443 | hdmi_infoframe_log_header(level, dev, | |
468d6a49 | 1444 | (const struct hdmi_any_infoframe *)frame); |
2c676f37 MB |
1445 | |
1446 | if (frame->channels) | |
1447 | hdmi_log(" channels: %u\n", frame->channels - 1); | |
1448 | else | |
1449 | hdmi_log(" channels: Refer to stream header\n"); | |
1450 | hdmi_log(" coding type: %s\n", | |
1451 | hdmi_audio_coding_type_get_name(frame->coding_type)); | |
1452 | hdmi_log(" sample size: %s\n", | |
1453 | hdmi_audio_sample_size_get_name(frame->sample_size)); | |
1454 | hdmi_log(" sample frequency: %s\n", | |
1455 | hdmi_audio_sample_frequency_get_name(frame->sample_frequency)); | |
1456 | hdmi_log(" coding type ext: %s\n", | |
1457 | hdmi_audio_coding_type_ext_get_name(frame->coding_type_ext)); | |
1458 | hdmi_log(" channel allocation: 0x%x\n", | |
1459 | frame->channel_allocation); | |
1460 | hdmi_log(" level shift value: %u dB\n", | |
1461 | frame->level_shift_value); | |
1462 | hdmi_log(" downmix inhibit: %s\n", | |
1463 | frame->downmix_inhibit ? "Yes" : "No"); | |
1464 | } | |
1465 | ||
2cdbfd66 US |
1466 | static void hdmi_drm_infoframe_log(const char *level, |
1467 | struct device *dev, | |
1468 | const struct hdmi_drm_infoframe *frame) | |
1469 | { | |
1470 | int i; | |
1471 | ||
1472 | hdmi_infoframe_log_header(level, dev, | |
1473 | (struct hdmi_any_infoframe *)frame); | |
1474 | hdmi_log("length: %d\n", frame->length); | |
1475 | hdmi_log("metadata type: %d\n", frame->metadata_type); | |
1476 | hdmi_log("eotf: %d\n", frame->eotf); | |
1477 | for (i = 0; i < 3; i++) { | |
1478 | hdmi_log("x[%d]: %d\n", i, frame->display_primaries[i].x); | |
1479 | hdmi_log("y[%d]: %d\n", i, frame->display_primaries[i].y); | |
1480 | } | |
1481 | ||
1482 | hdmi_log("white point x: %d\n", frame->white_point.x); | |
1483 | hdmi_log("white point y: %d\n", frame->white_point.y); | |
1484 | ||
1485 | hdmi_log("max_display_mastering_luminance: %d\n", | |
1486 | frame->max_display_mastering_luminance); | |
1487 | hdmi_log("min_display_mastering_luminance: %d\n", | |
1488 | frame->min_display_mastering_luminance); | |
1489 | ||
1490 | hdmi_log("max_cll: %d\n", frame->max_cll); | |
1491 | hdmi_log("max_fall: %d\n", frame->max_fall); | |
1492 | } | |
1493 | ||
2c676f37 MB |
1494 | static const char * |
1495 | hdmi_3d_structure_get_name(enum hdmi_3d_structure s3d_struct) | |
1496 | { | |
1497 | if (s3d_struct < 0 || s3d_struct > 0xf) | |
1498 | return "Invalid"; | |
1499 | ||
1500 | switch (s3d_struct) { | |
1501 | case HDMI_3D_STRUCTURE_FRAME_PACKING: | |
1502 | return "Frame Packing"; | |
1503 | case HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE: | |
1504 | return "Field Alternative"; | |
1505 | case HDMI_3D_STRUCTURE_LINE_ALTERNATIVE: | |
1506 | return "Line Alternative"; | |
1507 | case HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL: | |
1508 | return "Side-by-side (Full)"; | |
1509 | case HDMI_3D_STRUCTURE_L_DEPTH: | |
1510 | return "L + Depth"; | |
1511 | case HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH: | |
1512 | return "L + Depth + Graphics + Graphics-depth"; | |
1513 | case HDMI_3D_STRUCTURE_TOP_AND_BOTTOM: | |
1514 | return "Top-and-Bottom"; | |
1515 | case HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF: | |
1516 | return "Side-by-side (Half)"; | |
1517 | default: | |
1518 | break; | |
1519 | } | |
1520 | return "Reserved"; | |
1521 | } | |
1522 | ||
2c676f37 MB |
1523 | static void |
1524 | hdmi_vendor_any_infoframe_log(const char *level, | |
1525 | struct device *dev, | |
468d6a49 | 1526 | const union hdmi_vendor_any_infoframe *frame) |
2c676f37 | 1527 | { |
468d6a49 | 1528 | const struct hdmi_vendor_infoframe *hvf = &frame->hdmi; |
2c676f37 MB |
1529 | |
1530 | hdmi_infoframe_log_header(level, dev, | |
468d6a49 | 1531 | (const struct hdmi_any_infoframe *)frame); |
2c676f37 MB |
1532 | |
1533 | if (frame->any.oui != HDMI_IEEE_OUI) { | |
1534 | hdmi_log(" not a HDMI vendor infoframe\n"); | |
1535 | return; | |
1536 | } | |
1537 | if (hvf->vic == 0 && hvf->s3d_struct == HDMI_3D_STRUCTURE_INVALID) { | |
1538 | hdmi_log(" empty frame\n"); | |
1539 | return; | |
1540 | } | |
1541 | ||
1542 | if (hvf->vic) | |
1543 | hdmi_log(" HDMI VIC: %u\n", hvf->vic); | |
1544 | if (hvf->s3d_struct != HDMI_3D_STRUCTURE_INVALID) { | |
1545 | hdmi_log(" 3D structure: %s\n", | |
1546 | hdmi_3d_structure_get_name(hvf->s3d_struct)); | |
1547 | if (hvf->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) | |
1548 | hdmi_log(" 3D extension data: %d\n", | |
1549 | hvf->s3d_ext_data); | |
1550 | } | |
1551 | } | |
1552 | ||
1553 | /** | |
1554 | * hdmi_infoframe_log() - log info of HDMI infoframe | |
1555 | * @level: logging level | |
1556 | * @dev: device | |
1557 | * @frame: HDMI infoframe | |
1558 | */ | |
1559 | void hdmi_infoframe_log(const char *level, | |
1560 | struct device *dev, | |
468d6a49 | 1561 | const union hdmi_infoframe *frame) |
2c676f37 MB |
1562 | { |
1563 | switch (frame->any.type) { | |
1564 | case HDMI_INFOFRAME_TYPE_AVI: | |
1565 | hdmi_avi_infoframe_log(level, dev, &frame->avi); | |
1566 | break; | |
1567 | case HDMI_INFOFRAME_TYPE_SPD: | |
1568 | hdmi_spd_infoframe_log(level, dev, &frame->spd); | |
1569 | break; | |
1570 | case HDMI_INFOFRAME_TYPE_AUDIO: | |
1571 | hdmi_audio_infoframe_log(level, dev, &frame->audio); | |
1572 | break; | |
1573 | case HDMI_INFOFRAME_TYPE_VENDOR: | |
1574 | hdmi_vendor_any_infoframe_log(level, dev, &frame->vendor); | |
1575 | break; | |
2cdbfd66 US |
1576 | case HDMI_INFOFRAME_TYPE_DRM: |
1577 | hdmi_drm_infoframe_log(level, dev, &frame->drm); | |
1578 | break; | |
2c676f37 MB |
1579 | } |
1580 | } | |
1581 | EXPORT_SYMBOL(hdmi_infoframe_log); | |
1582 | ||
1583 | /** | |
1584 | * hdmi_avi_infoframe_unpack() - unpack binary buffer to a HDMI AVI infoframe | |
2c676f37 | 1585 | * @frame: HDMI AVI infoframe |
480b8b3e VS |
1586 | * @buffer: source buffer |
1587 | * @size: size of buffer | |
2c676f37 MB |
1588 | * |
1589 | * Unpacks the information contained in binary @buffer into a structured | |
1590 | * @frame of the HDMI Auxiliary Video (AVI) information frame. | |
1591 | * Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4 | |
1592 | * specification. | |
1593 | * | |
1594 | * Returns 0 on success or a negative error code on failure. | |
1595 | */ | |
1596 | static int hdmi_avi_infoframe_unpack(struct hdmi_avi_infoframe *frame, | |
480b8b3e | 1597 | const void *buffer, size_t size) |
2c676f37 | 1598 | { |
f26e1de5 | 1599 | const u8 *ptr = buffer; |
2c676f37 | 1600 | |
480b8b3e VS |
1601 | if (size < HDMI_INFOFRAME_SIZE(AVI)) |
1602 | return -EINVAL; | |
1603 | ||
2c676f37 MB |
1604 | if (ptr[0] != HDMI_INFOFRAME_TYPE_AVI || |
1605 | ptr[1] != 2 || | |
1606 | ptr[2] != HDMI_AVI_INFOFRAME_SIZE) | |
1607 | return -EINVAL; | |
1608 | ||
1609 | if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(AVI)) != 0) | |
1610 | return -EINVAL; | |
1611 | ||
5ee0caf1 | 1612 | hdmi_avi_infoframe_init(frame); |
2c676f37 MB |
1613 | |
1614 | ptr += HDMI_INFOFRAME_HEADER_SIZE; | |
1615 | ||
1616 | frame->colorspace = (ptr[0] >> 5) & 0x3; | |
1617 | if (ptr[0] & 0x10) | |
1618 | frame->active_aspect = ptr[1] & 0xf; | |
1619 | if (ptr[0] & 0x8) { | |
6039f37d VS |
1620 | frame->top_bar = (ptr[6] << 8) | ptr[5]; |
1621 | frame->bottom_bar = (ptr[8] << 8) | ptr[7]; | |
2c676f37 MB |
1622 | } |
1623 | if (ptr[0] & 0x4) { | |
6039f37d VS |
1624 | frame->left_bar = (ptr[10] << 8) | ptr[9]; |
1625 | frame->right_bar = (ptr[12] << 8) | ptr[11]; | |
2c676f37 MB |
1626 | } |
1627 | frame->scan_mode = ptr[0] & 0x3; | |
1628 | ||
1629 | frame->colorimetry = (ptr[1] >> 6) & 0x3; | |
1630 | frame->picture_aspect = (ptr[1] >> 4) & 0x3; | |
1631 | frame->active_aspect = ptr[1] & 0xf; | |
1632 | ||
1633 | frame->itc = ptr[2] & 0x80 ? true : false; | |
1634 | frame->extended_colorimetry = (ptr[2] >> 4) & 0x7; | |
1635 | frame->quantization_range = (ptr[2] >> 2) & 0x3; | |
1636 | frame->nups = ptr[2] & 0x3; | |
1637 | ||
1638 | frame->video_code = ptr[3] & 0x7f; | |
1639 | frame->ycc_quantization_range = (ptr[4] >> 6) & 0x3; | |
1640 | frame->content_type = (ptr[4] >> 4) & 0x3; | |
1641 | ||
1642 | frame->pixel_repeat = ptr[4] & 0xf; | |
1643 | ||
1644 | return 0; | |
1645 | } | |
1646 | ||
1647 | /** | |
1648 | * hdmi_spd_infoframe_unpack() - unpack binary buffer to a HDMI SPD infoframe | |
2c676f37 | 1649 | * @frame: HDMI SPD infoframe |
480b8b3e VS |
1650 | * @buffer: source buffer |
1651 | * @size: size of buffer | |
2c676f37 MB |
1652 | * |
1653 | * Unpacks the information contained in binary @buffer into a structured | |
1654 | * @frame of the HDMI Source Product Description (SPD) information frame. | |
1655 | * Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4 | |
1656 | * specification. | |
1657 | * | |
1658 | * Returns 0 on success or a negative error code on failure. | |
1659 | */ | |
1660 | static int hdmi_spd_infoframe_unpack(struct hdmi_spd_infoframe *frame, | |
480b8b3e | 1661 | const void *buffer, size_t size) |
2c676f37 | 1662 | { |
f26e1de5 | 1663 | const u8 *ptr = buffer; |
2c676f37 MB |
1664 | int ret; |
1665 | ||
480b8b3e VS |
1666 | if (size < HDMI_INFOFRAME_SIZE(SPD)) |
1667 | return -EINVAL; | |
1668 | ||
2c676f37 MB |
1669 | if (ptr[0] != HDMI_INFOFRAME_TYPE_SPD || |
1670 | ptr[1] != 1 || | |
1671 | ptr[2] != HDMI_SPD_INFOFRAME_SIZE) { | |
1672 | return -EINVAL; | |
1673 | } | |
1674 | ||
1675 | if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(SPD)) != 0) | |
1676 | return -EINVAL; | |
1677 | ||
1678 | ptr += HDMI_INFOFRAME_HEADER_SIZE; | |
1679 | ||
1680 | ret = hdmi_spd_infoframe_init(frame, ptr, ptr + 8); | |
1681 | if (ret) | |
1682 | return ret; | |
1683 | ||
1684 | frame->sdi = ptr[24]; | |
1685 | ||
1686 | return 0; | |
1687 | } | |
1688 | ||
1689 | /** | |
1690 | * hdmi_audio_infoframe_unpack() - unpack binary buffer to a HDMI AUDIO infoframe | |
2c676f37 | 1691 | * @frame: HDMI Audio infoframe |
480b8b3e VS |
1692 | * @buffer: source buffer |
1693 | * @size: size of buffer | |
2c676f37 MB |
1694 | * |
1695 | * Unpacks the information contained in binary @buffer into a structured | |
1696 | * @frame of the HDMI Audio information frame. | |
1697 | * Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4 | |
1698 | * specification. | |
1699 | * | |
1700 | * Returns 0 on success or a negative error code on failure. | |
1701 | */ | |
1702 | static int hdmi_audio_infoframe_unpack(struct hdmi_audio_infoframe *frame, | |
480b8b3e | 1703 | const void *buffer, size_t size) |
2c676f37 | 1704 | { |
f26e1de5 | 1705 | const u8 *ptr = buffer; |
2c676f37 MB |
1706 | int ret; |
1707 | ||
480b8b3e VS |
1708 | if (size < HDMI_INFOFRAME_SIZE(AUDIO)) |
1709 | return -EINVAL; | |
1710 | ||
2c676f37 MB |
1711 | if (ptr[0] != HDMI_INFOFRAME_TYPE_AUDIO || |
1712 | ptr[1] != 1 || | |
1713 | ptr[2] != HDMI_AUDIO_INFOFRAME_SIZE) { | |
1714 | return -EINVAL; | |
1715 | } | |
1716 | ||
1717 | if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(AUDIO)) != 0) | |
1718 | return -EINVAL; | |
1719 | ||
1720 | ret = hdmi_audio_infoframe_init(frame); | |
1721 | if (ret) | |
1722 | return ret; | |
1723 | ||
1724 | ptr += HDMI_INFOFRAME_HEADER_SIZE; | |
1725 | ||
1726 | frame->channels = ptr[0] & 0x7; | |
1727 | frame->coding_type = (ptr[0] >> 4) & 0xf; | |
1728 | frame->sample_size = ptr[1] & 0x3; | |
1729 | frame->sample_frequency = (ptr[1] >> 2) & 0x7; | |
1730 | frame->coding_type_ext = ptr[2] & 0x1f; | |
1731 | frame->channel_allocation = ptr[3]; | |
1732 | frame->level_shift_value = (ptr[4] >> 3) & 0xf; | |
1733 | frame->downmix_inhibit = ptr[4] & 0x80 ? true : false; | |
1734 | ||
1735 | return 0; | |
1736 | } | |
1737 | ||
1738 | /** | |
250fe9a5 MCC |
1739 | * hdmi_vendor_any_infoframe_unpack() - unpack binary buffer to a HDMI |
1740 | * vendor infoframe | |
2c676f37 | 1741 | * @frame: HDMI Vendor infoframe |
480b8b3e VS |
1742 | * @buffer: source buffer |
1743 | * @size: size of buffer | |
2c676f37 MB |
1744 | * |
1745 | * Unpacks the information contained in binary @buffer into a structured | |
1746 | * @frame of the HDMI Vendor information frame. | |
1747 | * Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4 | |
1748 | * specification. | |
1749 | * | |
1750 | * Returns 0 on success or a negative error code on failure. | |
1751 | */ | |
1752 | static int | |
1753 | hdmi_vendor_any_infoframe_unpack(union hdmi_vendor_any_infoframe *frame, | |
480b8b3e | 1754 | const void *buffer, size_t size) |
2c676f37 | 1755 | { |
f26e1de5 | 1756 | const u8 *ptr = buffer; |
2c676f37 MB |
1757 | size_t length; |
1758 | int ret; | |
1759 | u8 hdmi_video_format; | |
1760 | struct hdmi_vendor_infoframe *hvf = &frame->hdmi; | |
1761 | ||
480b8b3e VS |
1762 | if (size < HDMI_INFOFRAME_HEADER_SIZE) |
1763 | return -EINVAL; | |
1764 | ||
2c676f37 MB |
1765 | if (ptr[0] != HDMI_INFOFRAME_TYPE_VENDOR || |
1766 | ptr[1] != 1 || | |
593f4b19 | 1767 | (ptr[2] != 4 && ptr[2] != 5 && ptr[2] != 6)) |
2c676f37 MB |
1768 | return -EINVAL; |
1769 | ||
1770 | length = ptr[2]; | |
1771 | ||
480b8b3e VS |
1772 | if (size < HDMI_INFOFRAME_HEADER_SIZE + length) |
1773 | return -EINVAL; | |
1774 | ||
2c676f37 MB |
1775 | if (hdmi_infoframe_checksum(buffer, |
1776 | HDMI_INFOFRAME_HEADER_SIZE + length) != 0) | |
1777 | return -EINVAL; | |
1778 | ||
1779 | ptr += HDMI_INFOFRAME_HEADER_SIZE; | |
1780 | ||
1781 | /* HDMI OUI */ | |
1782 | if ((ptr[0] != 0x03) || | |
1783 | (ptr[1] != 0x0c) || | |
1784 | (ptr[2] != 0x00)) | |
1785 | return -EINVAL; | |
1786 | ||
1787 | hdmi_video_format = ptr[3] >> 5; | |
1788 | ||
1789 | if (hdmi_video_format > 0x2) | |
1790 | return -EINVAL; | |
1791 | ||
1792 | ret = hdmi_vendor_infoframe_init(hvf); | |
1793 | if (ret) | |
1794 | return ret; | |
1795 | ||
1796 | hvf->length = length; | |
1797 | ||
593f4b19 VS |
1798 | if (hdmi_video_format == 0x2) { |
1799 | if (length != 5 && length != 6) | |
1800 | return -EINVAL; | |
2c676f37 MB |
1801 | hvf->s3d_struct = ptr[4] >> 4; |
1802 | if (hvf->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) { | |
593f4b19 | 1803 | if (length != 6) |
2c676f37 | 1804 | return -EINVAL; |
593f4b19 | 1805 | hvf->s3d_ext_data = ptr[5] >> 4; |
2c676f37 | 1806 | } |
593f4b19 VS |
1807 | } else if (hdmi_video_format == 0x1) { |
1808 | if (length != 5) | |
1809 | return -EINVAL; | |
1810 | hvf->vic = ptr[4]; | |
1811 | } else { | |
1812 | if (length != 4) | |
1813 | return -EINVAL; | |
2c676f37 MB |
1814 | } |
1815 | ||
1816 | return 0; | |
1817 | } | |
1818 | ||
270afb37 | 1819 | /** |
f45ce933 GM |
1820 | * hdmi_drm_infoframe_unpack_only() - unpack binary buffer of CTA-861-G DRM |
1821 | * infoframe DataBytes to a HDMI DRM | |
1822 | * infoframe | |
270afb37 US |
1823 | * @frame: HDMI DRM infoframe |
1824 | * @buffer: source buffer | |
1825 | * @size: size of buffer | |
1826 | * | |
f45ce933 GM |
1827 | * Unpacks CTA-861-G DRM infoframe DataBytes contained in the binary @buffer |
1828 | * into a structured @frame of the HDMI Dynamic Range and Mastering (DRM) | |
1829 | * infoframe. | |
270afb37 US |
1830 | * |
1831 | * Returns 0 on success or a negative error code on failure. | |
1832 | */ | |
f45ce933 GM |
1833 | int hdmi_drm_infoframe_unpack_only(struct hdmi_drm_infoframe *frame, |
1834 | const void *buffer, size_t size) | |
270afb37 US |
1835 | { |
1836 | const u8 *ptr = buffer; | |
1837 | const u8 *temp; | |
1838 | u8 x_lsb, x_msb; | |
1839 | u8 y_lsb, y_msb; | |
1840 | int ret; | |
1841 | int i; | |
1842 | ||
f45ce933 | 1843 | if (size < HDMI_DRM_INFOFRAME_SIZE) |
270afb37 US |
1844 | return -EINVAL; |
1845 | ||
1846 | ret = hdmi_drm_infoframe_init(frame); | |
1847 | if (ret) | |
1848 | return ret; | |
1849 | ||
270afb37 US |
1850 | frame->eotf = ptr[0] & 0x7; |
1851 | frame->metadata_type = ptr[1] & 0x7; | |
1852 | ||
1853 | temp = ptr + 2; | |
1854 | for (i = 0; i < 3; i++) { | |
1855 | x_lsb = *temp++; | |
1856 | x_msb = *temp++; | |
f45ce933 | 1857 | frame->display_primaries[i].x = (x_msb << 8) | x_lsb; |
270afb37 US |
1858 | y_lsb = *temp++; |
1859 | y_msb = *temp++; | |
1860 | frame->display_primaries[i].y = (y_msb << 8) | y_lsb; | |
1861 | } | |
1862 | ||
1863 | frame->white_point.x = (ptr[15] << 8) | ptr[14]; | |
1864 | frame->white_point.y = (ptr[17] << 8) | ptr[16]; | |
1865 | ||
1866 | frame->max_display_mastering_luminance = (ptr[19] << 8) | ptr[18]; | |
1867 | frame->min_display_mastering_luminance = (ptr[21] << 8) | ptr[20]; | |
1868 | frame->max_cll = (ptr[23] << 8) | ptr[22]; | |
1869 | frame->max_fall = (ptr[25] << 8) | ptr[24]; | |
1870 | ||
1871 | return 0; | |
1872 | } | |
f45ce933 GM |
1873 | EXPORT_SYMBOL(hdmi_drm_infoframe_unpack_only); |
1874 | ||
1875 | /** | |
1876 | * hdmi_drm_infoframe_unpack() - unpack binary buffer to a HDMI DRM infoframe | |
1877 | * @frame: HDMI DRM infoframe | |
1878 | * @buffer: source buffer | |
1879 | * @size: size of buffer | |
1880 | * | |
1881 | * Unpacks the CTA-861-G DRM infoframe contained in the binary @buffer into | |
1882 | * a structured @frame of the HDMI Dynamic Range and Mastering (DRM) | |
1883 | * infoframe. It also verifies the checksum as required by section 5.3.5 of | |
1884 | * the HDMI 1.4 specification. | |
1885 | * | |
1886 | * Returns 0 on success or a negative error code on failure. | |
1887 | */ | |
1888 | static int hdmi_drm_infoframe_unpack(struct hdmi_drm_infoframe *frame, | |
1889 | const void *buffer, size_t size) | |
1890 | { | |
1891 | const u8 *ptr = buffer; | |
1892 | int ret; | |
1893 | ||
1894 | if (size < HDMI_INFOFRAME_SIZE(DRM)) | |
1895 | return -EINVAL; | |
1896 | ||
1897 | if (ptr[0] != HDMI_INFOFRAME_TYPE_DRM || | |
1898 | ptr[1] != 1 || | |
1899 | ptr[2] != HDMI_DRM_INFOFRAME_SIZE) | |
1900 | return -EINVAL; | |
1901 | ||
1902 | if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(DRM)) != 0) | |
1903 | return -EINVAL; | |
1904 | ||
1905 | ret = hdmi_drm_infoframe_unpack_only(frame, ptr + HDMI_INFOFRAME_HEADER_SIZE, | |
1906 | size - HDMI_INFOFRAME_HEADER_SIZE); | |
1907 | return ret; | |
1908 | } | |
270afb37 | 1909 | |
2c676f37 MB |
1910 | /** |
1911 | * hdmi_infoframe_unpack() - unpack binary buffer to a HDMI infoframe | |
2c676f37 | 1912 | * @frame: HDMI infoframe |
480b8b3e VS |
1913 | * @buffer: source buffer |
1914 | * @size: size of buffer | |
2c676f37 MB |
1915 | * |
1916 | * Unpacks the information contained in binary buffer @buffer into a structured | |
1917 | * @frame of a HDMI infoframe. | |
1918 | * Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4 | |
1919 | * specification. | |
1920 | * | |
1921 | * Returns 0 on success or a negative error code on failure. | |
1922 | */ | |
f26e1de5 | 1923 | int hdmi_infoframe_unpack(union hdmi_infoframe *frame, |
480b8b3e | 1924 | const void *buffer, size_t size) |
2c676f37 MB |
1925 | { |
1926 | int ret; | |
f26e1de5 | 1927 | const u8 *ptr = buffer; |
2c676f37 | 1928 | |
480b8b3e VS |
1929 | if (size < HDMI_INFOFRAME_HEADER_SIZE) |
1930 | return -EINVAL; | |
1931 | ||
2c676f37 MB |
1932 | switch (ptr[0]) { |
1933 | case HDMI_INFOFRAME_TYPE_AVI: | |
480b8b3e | 1934 | ret = hdmi_avi_infoframe_unpack(&frame->avi, buffer, size); |
2c676f37 | 1935 | break; |
270afb37 US |
1936 | case HDMI_INFOFRAME_TYPE_DRM: |
1937 | ret = hdmi_drm_infoframe_unpack(&frame->drm, buffer, size); | |
1938 | break; | |
2c676f37 | 1939 | case HDMI_INFOFRAME_TYPE_SPD: |
480b8b3e | 1940 | ret = hdmi_spd_infoframe_unpack(&frame->spd, buffer, size); |
2c676f37 MB |
1941 | break; |
1942 | case HDMI_INFOFRAME_TYPE_AUDIO: | |
480b8b3e | 1943 | ret = hdmi_audio_infoframe_unpack(&frame->audio, buffer, size); |
2c676f37 MB |
1944 | break; |
1945 | case HDMI_INFOFRAME_TYPE_VENDOR: | |
480b8b3e | 1946 | ret = hdmi_vendor_any_infoframe_unpack(&frame->vendor, buffer, size); |
2c676f37 MB |
1947 | break; |
1948 | default: | |
1949 | ret = -EINVAL; | |
1950 | break; | |
1951 | } | |
1952 | ||
1953 | return ret; | |
1954 | } | |
1955 | EXPORT_SYMBOL(hdmi_infoframe_unpack); |