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7f4a9f43 WF |
1 | /* |
2 | * Generic routines and proc interface for ELD(EDID Like Data) information | |
3 | * | |
4 | * Copyright(c) 2008 Intel Corporation. | |
5 | * | |
6 | * Authors: | |
7 | * Wu Fengguang <wfg@linux.intel.com> | |
8 | * | |
9 | * This driver is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This driver is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | #include <linux/init.h> | |
25 | #include <sound/core.h> | |
26 | #include <asm/unaligned.h> | |
27 | #include "hda_codec.h" | |
28 | #include "hda_local.h" | |
29 | ||
30 | enum eld_versions { | |
31 | ELD_VER_CEA_861D = 2, | |
32 | ELD_VER_PARTIAL = 31, | |
33 | }; | |
34 | ||
7f4a9f43 WF |
35 | enum cea_edid_versions { |
36 | CEA_EDID_VER_NONE = 0, | |
37 | CEA_EDID_VER_CEA861 = 1, | |
38 | CEA_EDID_VER_CEA861A = 2, | |
39 | CEA_EDID_VER_CEA861BCD = 3, | |
40 | CEA_EDID_VER_RESERVED = 4, | |
41 | }; | |
42 | ||
7f4a9f43 WF |
43 | static char *cea_speaker_allocation_names[] = { |
44 | /* 0 */ "FL/FR", | |
45 | /* 1 */ "LFE", | |
46 | /* 2 */ "FC", | |
47 | /* 3 */ "RL/RR", | |
48 | /* 4 */ "RC", | |
49 | /* 5 */ "FLC/FRC", | |
50 | /* 6 */ "RLC/RRC", | |
51 | /* 7 */ "FLW/FRW", | |
52 | /* 8 */ "FLH/FRH", | |
53 | /* 9 */ "TC", | |
54 | /* 10 */ "FCH", | |
55 | }; | |
56 | ||
57 | static char *eld_connection_type_names[4] = { | |
58 | "HDMI", | |
9415e1c4 | 59 | "DisplayPort", |
7f4a9f43 WF |
60 | "2-reserved", |
61 | "3-reserved" | |
62 | }; | |
63 | ||
64 | enum cea_audio_coding_types { | |
65 | AUDIO_CODING_TYPE_REF_STREAM_HEADER = 0, | |
66 | AUDIO_CODING_TYPE_LPCM = 1, | |
67 | AUDIO_CODING_TYPE_AC3 = 2, | |
68 | AUDIO_CODING_TYPE_MPEG1 = 3, | |
69 | AUDIO_CODING_TYPE_MP3 = 4, | |
70 | AUDIO_CODING_TYPE_MPEG2 = 5, | |
71 | AUDIO_CODING_TYPE_AACLC = 6, | |
72 | AUDIO_CODING_TYPE_DTS = 7, | |
73 | AUDIO_CODING_TYPE_ATRAC = 8, | |
74 | AUDIO_CODING_TYPE_SACD = 9, | |
75 | AUDIO_CODING_TYPE_EAC3 = 10, | |
76 | AUDIO_CODING_TYPE_DTS_HD = 11, | |
77 | AUDIO_CODING_TYPE_MLP = 12, | |
78 | AUDIO_CODING_TYPE_DST = 13, | |
79 | AUDIO_CODING_TYPE_WMAPRO = 14, | |
80 | AUDIO_CODING_TYPE_REF_CXT = 15, | |
81 | /* also include valid xtypes below */ | |
82 | AUDIO_CODING_TYPE_HE_AAC = 15, | |
83 | AUDIO_CODING_TYPE_HE_AAC2 = 16, | |
84 | AUDIO_CODING_TYPE_MPEG_SURROUND = 17, | |
85 | }; | |
86 | ||
87 | enum cea_audio_coding_xtypes { | |
88 | AUDIO_CODING_XTYPE_HE_REF_CT = 0, | |
89 | AUDIO_CODING_XTYPE_HE_AAC = 1, | |
90 | AUDIO_CODING_XTYPE_HE_AAC2 = 2, | |
91 | AUDIO_CODING_XTYPE_MPEG_SURROUND = 3, | |
92 | AUDIO_CODING_XTYPE_FIRST_RESERVED = 4, | |
93 | }; | |
94 | ||
95 | static char *cea_audio_coding_type_names[] = { | |
96 | /* 0 */ "undefined", | |
97 | /* 1 */ "LPCM", | |
98 | /* 2 */ "AC-3", | |
99 | /* 3 */ "MPEG1", | |
100 | /* 4 */ "MP3", | |
101 | /* 5 */ "MPEG2", | |
102 | /* 6 */ "AAC-LC", | |
103 | /* 7 */ "DTS", | |
104 | /* 8 */ "ATRAC", | |
06f69d17 | 105 | /* 9 */ "DSD (One Bit Audio)", |
7f4a9f43 WF |
106 | /* 10 */ "E-AC-3/DD+ (Dolby Digital Plus)", |
107 | /* 11 */ "DTS-HD", | |
108 | /* 12 */ "MLP (Dolby TrueHD)", | |
109 | /* 13 */ "DST", | |
110 | /* 14 */ "WMAPro", | |
111 | /* 15 */ "HE-AAC", | |
112 | /* 16 */ "HE-AACv2", | |
113 | /* 17 */ "MPEG Surround", | |
114 | }; | |
115 | ||
116 | /* | |
117 | * The following two lists are shared between | |
118 | * - HDMI audio InfoFrame (source to sink) | |
4e19c58f | 119 | * - CEA E-EDID Extension (sink to source) |
7f4a9f43 WF |
120 | */ |
121 | ||
122 | /* | |
123 | * SS1:SS0 index => sample size | |
124 | */ | |
125 | static int cea_sample_sizes[4] = { | |
126 | 0, /* 0: Refer to Stream Header */ | |
127 | AC_SUPPCM_BITS_16, /* 1: 16 bits */ | |
128 | AC_SUPPCM_BITS_20, /* 2: 20 bits */ | |
129 | AC_SUPPCM_BITS_24, /* 3: 24 bits */ | |
130 | }; | |
131 | ||
132 | /* | |
133 | * SF2:SF1:SF0 index => sampling frequency | |
134 | */ | |
135 | static int cea_sampling_frequencies[8] = { | |
136 | 0, /* 0: Refer to Stream Header */ | |
137 | SNDRV_PCM_RATE_32000, /* 1: 32000Hz */ | |
138 | SNDRV_PCM_RATE_44100, /* 2: 44100Hz */ | |
139 | SNDRV_PCM_RATE_48000, /* 3: 48000Hz */ | |
140 | SNDRV_PCM_RATE_88200, /* 4: 88200Hz */ | |
141 | SNDRV_PCM_RATE_96000, /* 5: 96000Hz */ | |
142 | SNDRV_PCM_RATE_176400, /* 6: 176400Hz */ | |
143 | SNDRV_PCM_RATE_192000, /* 7: 192000Hz */ | |
144 | }; | |
145 | ||
146 | static unsigned char hdmi_get_eld_byte(struct hda_codec *codec, hda_nid_t nid, | |
147 | int byte_index) | |
148 | { | |
149 | unsigned int val; | |
150 | ||
151 | val = snd_hda_codec_read(codec, nid, 0, | |
152 | AC_VERB_GET_HDMI_ELDD, byte_index); | |
153 | ||
154 | #ifdef BE_PARANOID | |
03284c8f | 155 | printk(KERN_INFO "HDMI: ELD data byte %d: 0x%x\n", byte_index, val); |
7f4a9f43 WF |
156 | #endif |
157 | ||
158 | if ((val & AC_ELDD_ELD_VALID) == 0) { | |
03284c8f | 159 | snd_printd(KERN_INFO "HDMI: invalid ELD data byte %d\n", |
7f4a9f43 WF |
160 | byte_index); |
161 | val = 0; | |
162 | } | |
163 | ||
164 | return val & AC_ELDD_ELD_DATA; | |
165 | } | |
166 | ||
167 | #define GRAB_BITS(buf, byte, lowbit, bits) \ | |
168 | ({ \ | |
169 | BUILD_BUG_ON(lowbit > 7); \ | |
170 | BUILD_BUG_ON(bits > 8); \ | |
171 | BUILD_BUG_ON(bits <= 0); \ | |
172 | \ | |
173 | (buf[byte] >> (lowbit)) & ((1 << (bits)) - 1); \ | |
174 | }) | |
175 | ||
176 | static void hdmi_update_short_audio_desc(struct cea_sad *a, | |
177 | const unsigned char *buf) | |
178 | { | |
179 | int i; | |
180 | int val; | |
181 | ||
182 | val = GRAB_BITS(buf, 1, 0, 7); | |
183 | a->rates = 0; | |
184 | for (i = 0; i < 7; i++) | |
185 | if (val & (1 << i)) | |
186 | a->rates |= cea_sampling_frequencies[i + 1]; | |
187 | ||
188 | a->channels = GRAB_BITS(buf, 0, 0, 3); | |
189 | a->channels++; | |
190 | ||
191 | a->format = GRAB_BITS(buf, 0, 3, 4); | |
192 | switch (a->format) { | |
193 | case AUDIO_CODING_TYPE_REF_STREAM_HEADER: | |
194 | snd_printd(KERN_INFO | |
03284c8f | 195 | "HDMI: audio coding type 0 not expected\n"); |
7f4a9f43 WF |
196 | break; |
197 | ||
198 | case AUDIO_CODING_TYPE_LPCM: | |
199 | val = GRAB_BITS(buf, 2, 0, 3); | |
200 | a->sample_bits = 0; | |
201 | for (i = 0; i < 3; i++) | |
202 | if (val & (1 << i)) | |
203 | a->sample_bits |= cea_sample_sizes[i + 1]; | |
204 | break; | |
205 | ||
206 | case AUDIO_CODING_TYPE_AC3: | |
207 | case AUDIO_CODING_TYPE_MPEG1: | |
208 | case AUDIO_CODING_TYPE_MP3: | |
209 | case AUDIO_CODING_TYPE_MPEG2: | |
210 | case AUDIO_CODING_TYPE_AACLC: | |
211 | case AUDIO_CODING_TYPE_DTS: | |
212 | case AUDIO_CODING_TYPE_ATRAC: | |
213 | a->max_bitrate = GRAB_BITS(buf, 2, 0, 8); | |
214 | a->max_bitrate *= 8000; | |
215 | break; | |
216 | ||
217 | case AUDIO_CODING_TYPE_SACD: | |
218 | break; | |
219 | ||
220 | case AUDIO_CODING_TYPE_EAC3: | |
221 | break; | |
222 | ||
223 | case AUDIO_CODING_TYPE_DTS_HD: | |
224 | break; | |
225 | ||
226 | case AUDIO_CODING_TYPE_MLP: | |
227 | break; | |
228 | ||
229 | case AUDIO_CODING_TYPE_DST: | |
230 | break; | |
231 | ||
232 | case AUDIO_CODING_TYPE_WMAPRO: | |
233 | a->profile = GRAB_BITS(buf, 2, 0, 3); | |
234 | break; | |
235 | ||
236 | case AUDIO_CODING_TYPE_REF_CXT: | |
237 | a->format = GRAB_BITS(buf, 2, 3, 5); | |
238 | if (a->format == AUDIO_CODING_XTYPE_HE_REF_CT || | |
239 | a->format >= AUDIO_CODING_XTYPE_FIRST_RESERVED) { | |
240 | snd_printd(KERN_INFO | |
03284c8f | 241 | "HDMI: audio coding xtype %d not expected\n", |
7f4a9f43 WF |
242 | a->format); |
243 | a->format = 0; | |
244 | } else | |
245 | a->format += AUDIO_CODING_TYPE_HE_AAC - | |
246 | AUDIO_CODING_XTYPE_HE_AAC; | |
247 | break; | |
248 | } | |
249 | } | |
250 | ||
251 | /* | |
252 | * Be careful, ELD buf could be totally rubbish! | |
253 | */ | |
5b87ebb7 WF |
254 | static int hdmi_update_eld(struct hdmi_eld *e, |
255 | const unsigned char *buf, int size) | |
7f4a9f43 WF |
256 | { |
257 | int mnl; | |
258 | int i; | |
259 | ||
260 | e->eld_ver = GRAB_BITS(buf, 0, 3, 5); | |
261 | if (e->eld_ver != ELD_VER_CEA_861D && | |
262 | e->eld_ver != ELD_VER_PARTIAL) { | |
03284c8f WF |
263 | snd_printd(KERN_INFO "HDMI: Unknown ELD version %d\n", |
264 | e->eld_ver); | |
7f4a9f43 WF |
265 | goto out_fail; |
266 | } | |
267 | ||
268 | e->eld_size = size; | |
269 | e->baseline_len = GRAB_BITS(buf, 2, 0, 8); | |
270 | mnl = GRAB_BITS(buf, 4, 0, 5); | |
271 | e->cea_edid_ver = GRAB_BITS(buf, 4, 5, 3); | |
272 | ||
273 | e->support_hdcp = GRAB_BITS(buf, 5, 0, 1); | |
274 | e->support_ai = GRAB_BITS(buf, 5, 1, 1); | |
275 | e->conn_type = GRAB_BITS(buf, 5, 2, 2); | |
276 | e->sad_count = GRAB_BITS(buf, 5, 4, 4); | |
277 | ||
278 | e->aud_synch_delay = GRAB_BITS(buf, 6, 0, 8) * 2; | |
279 | e->spk_alloc = GRAB_BITS(buf, 7, 0, 7); | |
280 | ||
281 | e->port_id = get_unaligned_le64(buf + 8); | |
282 | ||
283 | /* not specified, but the spec's tendency is little endian */ | |
284 | e->manufacture_id = get_unaligned_le16(buf + 16); | |
285 | e->product_id = get_unaligned_le16(buf + 18); | |
286 | ||
287 | if (mnl > ELD_MAX_MNL) { | |
03284c8f | 288 | snd_printd(KERN_INFO "HDMI: MNL is reserved value %d\n", mnl); |
7f4a9f43 WF |
289 | goto out_fail; |
290 | } else if (ELD_FIXED_BYTES + mnl > size) { | |
03284c8f | 291 | snd_printd(KERN_INFO "HDMI: out of range MNL %d\n", mnl); |
7f4a9f43 WF |
292 | goto out_fail; |
293 | } else | |
294 | strlcpy(e->monitor_name, buf + ELD_FIXED_BYTES, mnl); | |
295 | ||
296 | for (i = 0; i < e->sad_count; i++) { | |
297 | if (ELD_FIXED_BYTES + mnl + 3 * (i + 1) > size) { | |
03284c8f | 298 | snd_printd(KERN_INFO "HDMI: out of range SAD %d\n", i); |
7f4a9f43 WF |
299 | goto out_fail; |
300 | } | |
301 | hdmi_update_short_audio_desc(e->sad + i, | |
302 | buf + ELD_FIXED_BYTES + mnl + 3 * i); | |
303 | } | |
304 | ||
305 | return 0; | |
306 | ||
307 | out_fail: | |
308 | e->eld_ver = 0; | |
309 | return -EINVAL; | |
310 | } | |
311 | ||
7f4a9f43 WF |
312 | static int hdmi_eld_valid(struct hda_codec *codec, hda_nid_t nid) |
313 | { | |
314 | int eldv; | |
315 | int present; | |
316 | ||
864f92be | 317 | present = snd_hda_pin_sense(codec, nid); |
7f4a9f43 WF |
318 | eldv = (present & AC_PINSENSE_ELDV); |
319 | present = (present & AC_PINSENSE_PRESENCE); | |
320 | ||
321 | #ifdef CONFIG_SND_DEBUG_VERBOSE | |
03284c8f WF |
322 | printk(KERN_INFO "HDMI: sink_present = %d, eld_valid = %d\n", |
323 | !!present, !!eldv); | |
7f4a9f43 WF |
324 | #endif |
325 | ||
326 | return eldv && present; | |
327 | } | |
328 | ||
329 | int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid) | |
330 | { | |
331 | return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_DIP_SIZE, | |
332 | AC_DIPSIZE_ELD_BUF); | |
333 | } | |
334 | ||
5b87ebb7 | 335 | int snd_hdmi_get_eld(struct hdmi_eld *eld, |
7f4a9f43 WF |
336 | struct hda_codec *codec, hda_nid_t nid) |
337 | { | |
338 | int i; | |
339 | int ret; | |
340 | int size; | |
341 | unsigned char *buf; | |
342 | ||
343 | if (!hdmi_eld_valid(codec, nid)) | |
344 | return -ENOENT; | |
345 | ||
346 | size = snd_hdmi_get_eld_size(codec, nid); | |
347 | if (size == 0) { | |
348 | /* wfg: workaround for ASUS P5E-VM HDMI board */ | |
03284c8f | 349 | snd_printd(KERN_INFO "HDMI: ELD buf size is 0, force 128\n"); |
7f4a9f43 WF |
350 | size = 128; |
351 | } | |
352 | if (size < ELD_FIXED_BYTES || size > PAGE_SIZE) { | |
03284c8f | 353 | snd_printd(KERN_INFO "HDMI: invalid ELD buf size %d\n", size); |
7f4a9f43 WF |
354 | return -ERANGE; |
355 | } | |
356 | ||
357 | buf = kmalloc(size, GFP_KERNEL); | |
358 | if (!buf) | |
359 | return -ENOMEM; | |
360 | ||
361 | for (i = 0; i < size; i++) | |
362 | buf[i] = hdmi_get_eld_byte(codec, nid, i); | |
363 | ||
5b87ebb7 | 364 | ret = hdmi_update_eld(eld, buf, size); |
7f4a9f43 WF |
365 | |
366 | kfree(buf); | |
367 | return ret; | |
368 | } | |
369 | ||
370 | static void hdmi_show_short_audio_desc(struct cea_sad *a) | |
371 | { | |
372 | char buf[SND_PRINT_RATES_ADVISED_BUFSIZE]; | |
ae8cb4ca | 373 | char buf2[8 + SND_PRINT_BITS_ADVISED_BUFSIZE] = ", bits ="; |
7f4a9f43 | 374 | |
ae8cb4ca WF |
375 | if (!a->format) |
376 | return; | |
7f4a9f43 WF |
377 | |
378 | snd_print_pcm_rates(a->rates, buf, sizeof(buf)); | |
7f4a9f43 WF |
379 | |
380 | if (a->format == AUDIO_CODING_TYPE_LPCM) | |
218b5ffc | 381 | snd_print_pcm_bits(a->sample_bits, buf2 + 8, sizeof(buf2 - 8)); |
ae8cb4ca WF |
382 | else if (a->max_bitrate) |
383 | snprintf(buf2, sizeof(buf2), | |
384 | ", max bitrate = %d", a->max_bitrate); | |
385 | else | |
386 | buf2[0] = '\0'; | |
387 | ||
03284c8f | 388 | printk(KERN_INFO "HDMI: supports coding type %s:" |
ae8cb4ca WF |
389 | " channels = %d, rates =%s%s\n", |
390 | cea_audio_coding_type_names[a->format], | |
391 | a->channels, | |
392 | buf, | |
393 | buf2); | |
7f4a9f43 WF |
394 | } |
395 | ||
903b21d8 | 396 | void snd_print_channel_allocation(int spk_alloc, char *buf, int buflen) |
7f4a9f43 WF |
397 | { |
398 | int i, j; | |
399 | ||
400 | for (i = 0, j = 0; i < ARRAY_SIZE(cea_speaker_allocation_names); i++) { | |
401 | if (spk_alloc & (1 << i)) | |
06f69d17 | 402 | j += snprintf(buf + j, buflen - j, " %s", |
7f4a9f43 WF |
403 | cea_speaker_allocation_names[i]); |
404 | } | |
7f4a9f43 WF |
405 | buf[j] = '\0'; /* necessary when j == 0 */ |
406 | } | |
407 | ||
5b87ebb7 | 408 | void snd_hdmi_show_eld(struct hdmi_eld *e) |
7f4a9f43 WF |
409 | { |
410 | int i; | |
ae8cb4ca | 411 | |
03284c8f | 412 | printk(KERN_INFO "HDMI: detected monitor %s at connection type %s\n", |
ae8cb4ca WF |
413 | e->monitor_name, |
414 | eld_connection_type_names[e->conn_type]); | |
415 | ||
416 | if (e->spk_alloc) { | |
417 | char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE]; | |
418 | snd_print_channel_allocation(e->spk_alloc, buf, sizeof(buf)); | |
03284c8f | 419 | printk(KERN_INFO "HDMI: available speakers:%s\n", buf); |
ae8cb4ca | 420 | } |
7f4a9f43 WF |
421 | |
422 | for (i = 0; i < e->sad_count; i++) | |
423 | hdmi_show_short_audio_desc(e->sad + i); | |
424 | } | |
5f1e71b1 WF |
425 | |
426 | #ifdef CONFIG_PROC_FS | |
427 | ||
428 | static void hdmi_print_sad_info(int i, struct cea_sad *a, | |
429 | struct snd_info_buffer *buffer) | |
430 | { | |
d39b4352 | 431 | char buf[SND_PRINT_RATES_ADVISED_BUFSIZE]; |
5f1e71b1 WF |
432 | |
433 | snd_iprintf(buffer, "sad%d_coding_type\t[0x%x] %s\n", | |
434 | i, a->format, cea_audio_coding_type_names[a->format]); | |
435 | snd_iprintf(buffer, "sad%d_channels\t\t%d\n", i, a->channels); | |
436 | ||
437 | snd_print_pcm_rates(a->rates, buf, sizeof(buf)); | |
06f69d17 | 438 | snd_iprintf(buffer, "sad%d_rates\t\t[0x%x]%s\n", i, a->rates, buf); |
5f1e71b1 | 439 | |
d39b4352 WF |
440 | if (a->format == AUDIO_CODING_TYPE_LPCM) { |
441 | snd_print_pcm_bits(a->sample_bits, buf, sizeof(buf)); | |
442 | snd_iprintf(buffer, "sad%d_bits\t\t[0x%x]%s\n", | |
443 | i, a->sample_bits, buf); | |
444 | } | |
5f1e71b1 WF |
445 | |
446 | if (a->max_bitrate) | |
447 | snd_iprintf(buffer, "sad%d_max_bitrate\t%d\n", | |
448 | i, a->max_bitrate); | |
449 | ||
450 | if (a->profile) | |
451 | snd_iprintf(buffer, "sad%d_profile\t\t%d\n", i, a->profile); | |
452 | } | |
453 | ||
454 | static void hdmi_print_eld_info(struct snd_info_entry *entry, | |
455 | struct snd_info_buffer *buffer) | |
456 | { | |
5b87ebb7 | 457 | struct hdmi_eld *e = entry->private_data; |
903b21d8 | 458 | char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE]; |
5f1e71b1 | 459 | int i; |
4805286b WF |
460 | static char *eld_versoin_names[32] = { |
461 | "reserved", | |
462 | "reserved", | |
463 | "CEA-861D or below", | |
464 | [3 ... 30] = "reserved", | |
465 | [31] = "partial" | |
466 | }; | |
467 | static char *cea_edid_version_names[8] = { | |
468 | "no CEA EDID Timing Extension block present", | |
469 | "CEA-861", | |
470 | "CEA-861-A", | |
471 | "CEA-861-B, C or D", | |
472 | [4 ... 7] = "reserved" | |
473 | }; | |
5f1e71b1 | 474 | |
23ccc2bd WF |
475 | snd_iprintf(buffer, "monitor_present\t\t%d\n", e->monitor_present); |
476 | snd_iprintf(buffer, "eld_valid\t\t%d\n", e->eld_valid); | |
db742104 | 477 | snd_iprintf(buffer, "monitor_name\t\t%s\n", e->monitor_name); |
5f1e71b1 WF |
478 | snd_iprintf(buffer, "connection_type\t\t%s\n", |
479 | eld_connection_type_names[e->conn_type]); | |
480 | snd_iprintf(buffer, "eld_version\t\t[0x%x] %s\n", e->eld_ver, | |
481 | eld_versoin_names[e->eld_ver]); | |
482 | snd_iprintf(buffer, "edid_version\t\t[0x%x] %s\n", e->cea_edid_ver, | |
483 | cea_edid_version_names[e->cea_edid_ver]); | |
484 | snd_iprintf(buffer, "manufacture_id\t\t0x%x\n", e->manufacture_id); | |
485 | snd_iprintf(buffer, "product_id\t\t0x%x\n", e->product_id); | |
486 | snd_iprintf(buffer, "port_id\t\t\t0x%llx\n", (long long)e->port_id); | |
487 | snd_iprintf(buffer, "support_hdcp\t\t%d\n", e->support_hdcp); | |
488 | snd_iprintf(buffer, "support_ai\t\t%d\n", e->support_ai); | |
489 | snd_iprintf(buffer, "audio_sync_delay\t%d\n", e->aud_synch_delay); | |
490 | ||
903b21d8 | 491 | snd_print_channel_allocation(e->spk_alloc, buf, sizeof(buf)); |
06f69d17 | 492 | snd_iprintf(buffer, "speakers\t\t[0x%x]%s\n", e->spk_alloc, buf); |
5f1e71b1 WF |
493 | |
494 | snd_iprintf(buffer, "sad_count\t\t%d\n", e->sad_count); | |
495 | ||
496 | for (i = 0; i < e->sad_count; i++) | |
497 | hdmi_print_sad_info(i, e->sad + i, buffer); | |
498 | } | |
499 | ||
acb05993 | 500 | static void hdmi_write_eld_info(struct snd_info_entry *entry, |
acdda791 WF |
501 | struct snd_info_buffer *buffer) |
502 | { | |
503 | struct hdmi_eld *e = entry->private_data; | |
504 | char line[64]; | |
505 | char name[64]; | |
506 | char *sname; | |
507 | long long val; | |
78735cff | 508 | unsigned int n; |
acdda791 WF |
509 | |
510 | while (!snd_info_get_line(buffer, line, sizeof(line))) { | |
511 | if (sscanf(line, "%s %llx", name, &val) != 2) | |
512 | continue; | |
acb05993 WF |
513 | /* |
514 | * We don't allow modification to these fields: | |
515 | * monitor_name manufacture_id product_id | |
516 | * eld_version edid_version | |
517 | */ | |
23ccc2bd WF |
518 | if (!strcmp(name, "monitor_present")) |
519 | e->monitor_present = val; | |
520 | else if (!strcmp(name, "eld_valid")) | |
521 | e->eld_valid = val; | |
522 | else if (!strcmp(name, "connection_type")) | |
acdda791 WF |
523 | e->conn_type = val; |
524 | else if (!strcmp(name, "port_id")) | |
525 | e->port_id = val; | |
526 | else if (!strcmp(name, "support_hdcp")) | |
527 | e->support_hdcp = val; | |
528 | else if (!strcmp(name, "support_ai")) | |
529 | e->support_ai = val; | |
530 | else if (!strcmp(name, "audio_sync_delay")) | |
531 | e->aud_synch_delay = val; | |
532 | else if (!strcmp(name, "speakers")) | |
533 | e->spk_alloc = val; | |
534 | else if (!strcmp(name, "sad_count")) | |
535 | e->sad_count = val; | |
536 | else if (!strncmp(name, "sad", 3)) { | |
537 | sname = name + 4; | |
538 | n = name[3] - '0'; | |
539 | if (name[4] >= '0' && name[4] <= '9') { | |
540 | sname++; | |
541 | n = 10 * n + name[4] - '0'; | |
542 | } | |
78735cff | 543 | if (n >= ELD_MAX_SAD) |
acdda791 WF |
544 | continue; |
545 | if (!strcmp(sname, "_coding_type")) | |
546 | e->sad[n].format = val; | |
547 | else if (!strcmp(sname, "_channels")) | |
548 | e->sad[n].channels = val; | |
549 | else if (!strcmp(sname, "_rates")) | |
550 | e->sad[n].rates = val; | |
551 | else if (!strcmp(sname, "_bits")) | |
552 | e->sad[n].sample_bits = val; | |
553 | else if (!strcmp(sname, "_max_bitrate")) | |
554 | e->sad[n].max_bitrate = val; | |
acb05993 WF |
555 | else if (!strcmp(sname, "_profile")) |
556 | e->sad[n].profile = val; | |
acdda791 WF |
557 | if (n >= e->sad_count) |
558 | e->sad_count = n + 1; | |
559 | } | |
560 | } | |
561 | } | |
562 | ||
563 | ||
54a25f87 WF |
564 | int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld, |
565 | int index) | |
5f1e71b1 WF |
566 | { |
567 | char name[32]; | |
568 | struct snd_info_entry *entry; | |
569 | int err; | |
570 | ||
54a25f87 | 571 | snprintf(name, sizeof(name), "eld#%d.%d", codec->addr, index); |
5f1e71b1 WF |
572 | err = snd_card_proc_new(codec->bus->card, name, &entry); |
573 | if (err < 0) | |
574 | return err; | |
575 | ||
576 | snd_info_set_text_ops(entry, eld, hdmi_print_eld_info); | |
acb05993 | 577 | entry->c.text.write = hdmi_write_eld_info; |
acdda791 | 578 | entry->mode |= S_IWUSR; |
f208dba9 | 579 | eld->proc_entry = entry; |
acdda791 | 580 | |
5f1e71b1 WF |
581 | return 0; |
582 | } | |
583 | ||
f208dba9 TI |
584 | void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld) |
585 | { | |
586 | if (!codec->bus->shutdown && eld->proc_entry) { | |
587 | snd_device_free(codec->bus->card, eld->proc_entry); | |
588 | eld->proc_entry = NULL; | |
589 | } | |
590 | } | |
591 | ||
592 | #endif /* CONFIG_PROC_FS */ |