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