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