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-rw-r--r--sound/pci/Kconfig4
-rw-r--r--sound/pci/hda/Makefile1
-rw-r--r--sound/pci/hda/hda_eld.c454
-rw-r--r--sound/pci/hda/hda_local.h41
-rw-r--r--sound/pci/hda/patch_intelhdmi.c480
5 files changed, 505 insertions, 475 deletions
diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig
index 21e9327a0ef4..157a0a6b10ae 100644
--- a/sound/pci/Kconfig
+++ b/sound/pci/Kconfig
@@ -582,6 +582,10 @@ config SND_HDA_CODEC_INTELHDMI
582 Say Y here to include INTEL HDMI HD-audio codec support in 582 Say Y here to include INTEL HDMI HD-audio codec support in
583 snd-hda-intel driver, such as Eaglelake integrated HDMI. 583 snd-hda-intel driver, such as Eaglelake integrated HDMI.
584 584
585config SND_HDA_ELD
586 def_bool y
587 depends on SND_HDA_CODEC_INTELHDMI
588
585config SND_HDA_CODEC_CONEXANT 589config SND_HDA_CODEC_CONEXANT
586 bool "Build Conexant HD-audio codec support" 590 bool "Build Conexant HD-audio codec support"
587 depends on SND_HDA_INTEL 591 depends on SND_HDA_INTEL
diff --git a/sound/pci/hda/Makefile b/sound/pci/hda/Makefile
index 6fb5add1e39a..6daf5fd9a279 100644
--- a/sound/pci/hda/Makefile
+++ b/sound/pci/hda/Makefile
@@ -4,6 +4,7 @@ snd-hda-intel-y := hda_intel.o
4# designed to be individual modules 4# designed to be individual modules
5snd-hda-intel-y += hda_codec.o 5snd-hda-intel-y += hda_codec.o
6snd-hda-intel-$(CONFIG_PROC_FS) += hda_proc.o 6snd-hda-intel-$(CONFIG_PROC_FS) += hda_proc.o
7snd-hda-intel-$(CONFIG_SND_HDA_ELD) += hda_eld.o
7snd-hda-intel-$(CONFIG_SND_HDA_HWDEP) += hda_hwdep.o 8snd-hda-intel-$(CONFIG_SND_HDA_HWDEP) += hda_hwdep.o
8snd-hda-intel-$(CONFIG_SND_HDA_INPUT_BEEP) += hda_beep.o 9snd-hda-intel-$(CONFIG_SND_HDA_INPUT_BEEP) += hda_beep.o
9snd-hda-intel-$(CONFIG_SND_HDA_GENERIC) += hda_generic.o 10snd-hda-intel-$(CONFIG_SND_HDA_GENERIC) += hda_generic.o
diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c
new file mode 100644
index 000000000000..a69a7e87d26a
--- /dev/null
+++ b/sound/pci/hda/hda_eld.c
@@ -0,0 +1,454 @@
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
30enum eld_versions {
31 ELD_VER_CEA_861D = 2,
32 ELD_VER_PARTIAL = 31,
33};
34
35static char *eld_versoin_names[32] = {
36 "reserved",
37 "reserved",
38 "CEA-861D or below",
39 [3 ... 30] = "reserved",
40 [31] = "partial"
41};
42
43enum cea_edid_versions {
44 CEA_EDID_VER_NONE = 0,
45 CEA_EDID_VER_CEA861 = 1,
46 CEA_EDID_VER_CEA861A = 2,
47 CEA_EDID_VER_CEA861BCD = 3,
48 CEA_EDID_VER_RESERVED = 4,
49};
50
51static char *cea_edid_version_names[8] = {
52 "no CEA EDID Timing Extension block present",
53 "CEA-861",
54 "CEA-861-A",
55 "CEA-861-B, C or D",
56 [4 ... 7] = "reserved"
57};
58
59static char *cea_speaker_allocation_names[] = {
60 /* 0 */ "FL/FR",
61 /* 1 */ "LFE",
62 /* 2 */ "FC",
63 /* 3 */ "RL/RR",
64 /* 4 */ "RC",
65 /* 5 */ "FLC/FRC",
66 /* 6 */ "RLC/RRC",
67 /* 7 */ "FLW/FRW",
68 /* 8 */ "FLH/FRH",
69 /* 9 */ "TC",
70 /* 10 */ "FCH",
71};
72
73static char *eld_connection_type_names[4] = {
74 "HDMI",
75 "Display Port",
76 "2-reserved",
77 "3-reserved"
78};
79
80enum cea_audio_coding_types {
81 AUDIO_CODING_TYPE_REF_STREAM_HEADER = 0,
82 AUDIO_CODING_TYPE_LPCM = 1,
83 AUDIO_CODING_TYPE_AC3 = 2,
84 AUDIO_CODING_TYPE_MPEG1 = 3,
85 AUDIO_CODING_TYPE_MP3 = 4,
86 AUDIO_CODING_TYPE_MPEG2 = 5,
87 AUDIO_CODING_TYPE_AACLC = 6,
88 AUDIO_CODING_TYPE_DTS = 7,
89 AUDIO_CODING_TYPE_ATRAC = 8,
90 AUDIO_CODING_TYPE_SACD = 9,
91 AUDIO_CODING_TYPE_EAC3 = 10,
92 AUDIO_CODING_TYPE_DTS_HD = 11,
93 AUDIO_CODING_TYPE_MLP = 12,
94 AUDIO_CODING_TYPE_DST = 13,
95 AUDIO_CODING_TYPE_WMAPRO = 14,
96 AUDIO_CODING_TYPE_REF_CXT = 15,
97 /* also include valid xtypes below */
98 AUDIO_CODING_TYPE_HE_AAC = 15,
99 AUDIO_CODING_TYPE_HE_AAC2 = 16,
100 AUDIO_CODING_TYPE_MPEG_SURROUND = 17,
101};
102
103enum cea_audio_coding_xtypes {
104 AUDIO_CODING_XTYPE_HE_REF_CT = 0,
105 AUDIO_CODING_XTYPE_HE_AAC = 1,
106 AUDIO_CODING_XTYPE_HE_AAC2 = 2,
107 AUDIO_CODING_XTYPE_MPEG_SURROUND = 3,
108 AUDIO_CODING_XTYPE_FIRST_RESERVED = 4,
109};
110
111static char *cea_audio_coding_type_names[] = {
112 /* 0 */ "undefined",
113 /* 1 */ "LPCM",
114 /* 2 */ "AC-3",
115 /* 3 */ "MPEG1",
116 /* 4 */ "MP3",
117 /* 5 */ "MPEG2",
118 /* 6 */ "AAC-LC",
119 /* 7 */ "DTS",
120 /* 8 */ "ATRAC",
121 /* 9 */ "DSD (1-bit audio)",
122 /* 10 */ "E-AC-3/DD+ (Dolby Digital Plus)",
123 /* 11 */ "DTS-HD",
124 /* 12 */ "MLP (Dolby TrueHD)",
125 /* 13 */ "DST",
126 /* 14 */ "WMAPro",
127 /* 15 */ "HE-AAC",
128 /* 16 */ "HE-AACv2",
129 /* 17 */ "MPEG Surround",
130};
131
132/*
133 * The following two lists are shared between
134 * - HDMI audio InfoFrame (source to sink)
135 * - CEA E-EDID extension (sink to source)
136 */
137
138/*
139 * SS1:SS0 index => sample size
140 */
141static int cea_sample_sizes[4] = {
142 0, /* 0: Refer to Stream Header */
143 AC_SUPPCM_BITS_16, /* 1: 16 bits */
144 AC_SUPPCM_BITS_20, /* 2: 20 bits */
145 AC_SUPPCM_BITS_24, /* 3: 24 bits */
146};
147
148/*
149 * SF2:SF1:SF0 index => sampling frequency
150 */
151static int cea_sampling_frequencies[8] = {
152 0, /* 0: Refer to Stream Header */
153 SNDRV_PCM_RATE_32000, /* 1: 32000Hz */
154 SNDRV_PCM_RATE_44100, /* 2: 44100Hz */
155 SNDRV_PCM_RATE_48000, /* 3: 48000Hz */
156 SNDRV_PCM_RATE_88200, /* 4: 88200Hz */
157 SNDRV_PCM_RATE_96000, /* 5: 96000Hz */
158 SNDRV_PCM_RATE_176400, /* 6: 176400Hz */
159 SNDRV_PCM_RATE_192000, /* 7: 192000Hz */
160};
161
162static unsigned char hdmi_get_eld_byte(struct hda_codec *codec, hda_nid_t nid,
163 int byte_index)
164{
165 unsigned int val;
166
167 val = snd_hda_codec_read(codec, nid, 0,
168 AC_VERB_GET_HDMI_ELDD, byte_index);
169
170#ifdef BE_PARANOID
171 printk(KERN_INFO "ELD data byte %d: 0x%x\n", byte_index, val);
172#endif
173
174 if ((val & AC_ELDD_ELD_VALID) == 0) {
175 snd_printd(KERN_INFO "Invalid ELD data byte %d\n",
176 byte_index);
177 val = 0;
178 }
179
180 return val & AC_ELDD_ELD_DATA;
181}
182
183#define GRAB_BITS(buf, byte, lowbit, bits) \
184({ \
185 BUILD_BUG_ON(lowbit > 7); \
186 BUILD_BUG_ON(bits > 8); \
187 BUILD_BUG_ON(bits <= 0); \
188 \
189 (buf[byte] >> (lowbit)) & ((1 << (bits)) - 1); \
190})
191
192static void hdmi_update_short_audio_desc(struct cea_sad *a,
193 const unsigned char *buf)
194{
195 int i;
196 int val;
197
198 val = GRAB_BITS(buf, 1, 0, 7);
199 a->rates = 0;
200 for (i = 0; i < 7; i++)
201 if (val & (1 << i))
202 a->rates |= cea_sampling_frequencies[i + 1];
203
204 a->channels = GRAB_BITS(buf, 0, 0, 3);
205 a->channels++;
206
207 a->format = GRAB_BITS(buf, 0, 3, 4);
208 switch (a->format) {
209 case AUDIO_CODING_TYPE_REF_STREAM_HEADER:
210 snd_printd(KERN_INFO
211 "audio coding type 0 not expected in ELD\n");
212 break;
213
214 case AUDIO_CODING_TYPE_LPCM:
215 val = GRAB_BITS(buf, 2, 0, 3);
216 a->sample_bits = 0;
217 for (i = 0; i < 3; i++)
218 if (val & (1 << i))
219 a->sample_bits |= cea_sample_sizes[i + 1];
220 break;
221
222 case AUDIO_CODING_TYPE_AC3:
223 case AUDIO_CODING_TYPE_MPEG1:
224 case AUDIO_CODING_TYPE_MP3:
225 case AUDIO_CODING_TYPE_MPEG2:
226 case AUDIO_CODING_TYPE_AACLC:
227 case AUDIO_CODING_TYPE_DTS:
228 case AUDIO_CODING_TYPE_ATRAC:
229 a->max_bitrate = GRAB_BITS(buf, 2, 0, 8);
230 a->max_bitrate *= 8000;
231 break;
232
233 case AUDIO_CODING_TYPE_SACD:
234 break;
235
236 case AUDIO_CODING_TYPE_EAC3:
237 break;
238
239 case AUDIO_CODING_TYPE_DTS_HD:
240 break;
241
242 case AUDIO_CODING_TYPE_MLP:
243 break;
244
245 case AUDIO_CODING_TYPE_DST:
246 break;
247
248 case AUDIO_CODING_TYPE_WMAPRO:
249 a->profile = GRAB_BITS(buf, 2, 0, 3);
250 break;
251
252 case AUDIO_CODING_TYPE_REF_CXT:
253 a->format = GRAB_BITS(buf, 2, 3, 5);
254 if (a->format == AUDIO_CODING_XTYPE_HE_REF_CT ||
255 a->format >= AUDIO_CODING_XTYPE_FIRST_RESERVED) {
256 snd_printd(KERN_INFO
257 "audio coding xtype %d not expected in ELD\n",
258 a->format);
259 a->format = 0;
260 } else
261 a->format += AUDIO_CODING_TYPE_HE_AAC -
262 AUDIO_CODING_XTYPE_HE_AAC;
263 break;
264 }
265}
266
267/*
268 * Be careful, ELD buf could be totally rubbish!
269 */
270static int hdmi_update_sink_eld(struct sink_eld *e,
271 const unsigned char *buf, int size)
272{
273 int mnl;
274 int i;
275
276 e->eld_ver = GRAB_BITS(buf, 0, 3, 5);
277 if (e->eld_ver != ELD_VER_CEA_861D &&
278 e->eld_ver != ELD_VER_PARTIAL) {
279 snd_printd(KERN_INFO "Unknown ELD version %d\n", e->eld_ver);
280 goto out_fail;
281 }
282
283 e->eld_size = size;
284 e->baseline_len = GRAB_BITS(buf, 2, 0, 8);
285 mnl = GRAB_BITS(buf, 4, 0, 5);
286 e->cea_edid_ver = GRAB_BITS(buf, 4, 5, 3);
287
288 e->support_hdcp = GRAB_BITS(buf, 5, 0, 1);
289 e->support_ai = GRAB_BITS(buf, 5, 1, 1);
290 e->conn_type = GRAB_BITS(buf, 5, 2, 2);
291 e->sad_count = GRAB_BITS(buf, 5, 4, 4);
292
293 e->aud_synch_delay = GRAB_BITS(buf, 6, 0, 8) * 2;
294 e->spk_alloc = GRAB_BITS(buf, 7, 0, 7);
295
296 e->port_id = get_unaligned_le64(buf + 8);
297
298 /* not specified, but the spec's tendency is little endian */
299 e->manufacture_id = get_unaligned_le16(buf + 16);
300 e->product_id = get_unaligned_le16(buf + 18);
301
302 if (mnl > ELD_MAX_MNL) {
303 snd_printd(KERN_INFO "MNL is reserved value %d\n", mnl);
304 goto out_fail;
305 } else if (ELD_FIXED_BYTES + mnl > size) {
306 snd_printd(KERN_INFO "out of range MNL %d\n", mnl);
307 goto out_fail;
308 } else
309 strlcpy(e->monitor_name, buf + ELD_FIXED_BYTES, mnl);
310
311 for (i = 0; i < e->sad_count; i++) {
312 if (ELD_FIXED_BYTES + mnl + 3 * (i + 1) > size) {
313 snd_printd(KERN_INFO "out of range SAD %d\n", i);
314 goto out_fail;
315 }
316 hdmi_update_short_audio_desc(e->sad + i,
317 buf + ELD_FIXED_BYTES + mnl + 3 * i);
318 }
319
320 return 0;
321
322out_fail:
323 e->eld_ver = 0;
324 return -EINVAL;
325}
326
327static int hdmi_present_sense(struct hda_codec *codec, hda_nid_t nid)
328{
329 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_PIN_SENSE, 0);
330}
331
332static int hdmi_eld_valid(struct hda_codec *codec, hda_nid_t nid)
333{
334 int eldv;
335 int present;
336
337 present = hdmi_present_sense(codec, nid);
338 eldv = (present & AC_PINSENSE_ELDV);
339 present = (present & AC_PINSENSE_PRESENCE);
340
341#ifdef CONFIG_SND_DEBUG_VERBOSE
342 printk(KERN_INFO "pinp = %d, eldv = %d\n", !!present, !!eldv);
343#endif
344
345 return eldv && present;
346}
347
348int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid)
349{
350 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_DIP_SIZE,
351 AC_DIPSIZE_ELD_BUF);
352}
353
354int snd_hdmi_get_eld(struct sink_eld *eld,
355 struct hda_codec *codec, hda_nid_t nid)
356{
357 int i;
358 int ret;
359 int size;
360 unsigned char *buf;
361
362 if (!hdmi_eld_valid(codec, nid))
363 return -ENOENT;
364
365 size = snd_hdmi_get_eld_size(codec, nid);
366 if (size == 0) {
367 /* wfg: workaround for ASUS P5E-VM HDMI board */
368 snd_printd(KERN_INFO "ELD buf size is 0, force 128\n");
369 size = 128;
370 }
371 if (size < ELD_FIXED_BYTES || size > PAGE_SIZE) {
372 snd_printd(KERN_INFO "Invalid ELD buf size %d\n", size);
373 return -ERANGE;
374 }
375
376 buf = kmalloc(size, GFP_KERNEL);
377 if (!buf)
378 return -ENOMEM;
379
380 for (i = 0; i < size; i++)
381 buf[i] = hdmi_get_eld_byte(codec, nid, i);
382
383 ret = hdmi_update_sink_eld(eld, buf, size);
384
385 kfree(buf);
386 return ret;
387}
388
389static void hdmi_show_short_audio_desc(struct cea_sad *a)
390{
391 char buf[SND_PRINT_RATES_ADVISED_BUFSIZE];
392
393 printk(KERN_INFO "coding type: %s\n",
394 cea_audio_coding_type_names[a->format]);
395 printk(KERN_INFO "channels: %d\n", a->channels);
396
397 snd_print_pcm_rates(a->rates, buf, sizeof(buf));
398 printk(KERN_INFO "sampling frequencies: %s\n", buf);
399
400 if (a->format == AUDIO_CODING_TYPE_LPCM)
401 printk(KERN_INFO "sample bits: 0x%x\n", a->sample_bits);
402
403 if (a->max_bitrate)
404 printk(KERN_INFO "max bitrate: %d\n", a->max_bitrate);
405
406 if (a->profile)
407 printk(KERN_INFO "profile: %d\n", a->profile);
408}
409
410#define HDMI_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
411static void hdmi_print_channel_allocation(int spk_alloc, char *buf, int buflen)
412{
413 int i, j;
414
415 for (i = 0, j = 0; i < ARRAY_SIZE(cea_speaker_allocation_names); i++) {
416 if (spk_alloc & (1 << i))
417 j += snprintf(buf + j, buflen - j, "%s ",
418 cea_speaker_allocation_names[i]);
419 }
420 if (j)
421 j--; /* skip last space */
422 buf[j] = '\0'; /* necessary when j == 0 */
423}
424
425void snd_hdmi_show_eld(struct sink_eld *e)
426{
427 int i;
428 char buf[HDMI_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
429
430 printk(KERN_INFO "ELD buffer size is %d\n", e->eld_size);
431 printk(KERN_INFO "ELD baseline len is %d*4\n", e->baseline_len);
432 printk(KERN_INFO "vendor block len is %d\n",
433 e->eld_size - e->baseline_len * 4 - 4);
434 printk(KERN_INFO "ELD version is %s\n",
435 eld_versoin_names[e->eld_ver]);
436 printk(KERN_INFO "CEA EDID version is %s\n",
437 cea_edid_version_names[e->cea_edid_ver]);
438 printk(KERN_INFO "manufacture id is 0x%x\n", e->manufacture_id);
439 printk(KERN_INFO "product id is 0x%x\n", e->product_id);
440 printk(KERN_INFO "port id is 0x%llx\n", (long long)e->port_id);
441 printk(KERN_INFO "HDCP support is %d\n", e->support_hdcp);
442 printk(KERN_INFO "AI support is %d\n", e->support_ai);
443 printk(KERN_INFO "SAD count is %d\n", e->sad_count);
444 printk(KERN_INFO "audio sync delay is %x\n", e->aud_synch_delay);
445 printk(KERN_INFO "connection type is %s\n",
446 eld_connection_type_names[e->conn_type]);
447 printk(KERN_INFO "monitor name is %s\n", e->monitor_name);
448
449 hdmi_print_channel_allocation(e->spk_alloc, buf, sizeof(buf));
450 printk(KERN_INFO "speaker allocations: (0x%x)%s\n", e->spk_alloc, buf);
451
452 for (i = 0; i < e->sad_count; i++)
453 hdmi_show_short_audio_desc(e->sad + i);
454}
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index d7e3a164effe..e1b76686672a 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -443,4 +443,45 @@ int snd_hda_check_amp_list_power(struct hda_codec *codec,
443#define get_amp_direction(kc) (((kc)->private_value >> 18) & 0x1) 443#define get_amp_direction(kc) (((kc)->private_value >> 18) & 0x1)
444#define get_amp_index(kc) (((kc)->private_value >> 19) & 0xf) 444#define get_amp_index(kc) (((kc)->private_value >> 19) & 0xf)
445 445
446/*
447 * CEA Short Audio Descriptor data
448 */
449struct cea_sad {
450 int channels;
451 int format; /* (format == 0) indicates invalid SAD */
452 int rates;
453 int sample_bits; /* for LPCM */
454 int max_bitrate; /* for AC3...ATRAC */
455 int profile; /* for WMAPRO */
456};
457
458#define ELD_FIXED_BYTES 20
459#define ELD_MAX_MNL 16
460#define ELD_MAX_SAD 16
461
462/*
463 * ELD: EDID Like Data
464 */
465struct sink_eld {
466 int eld_size;
467 int baseline_len;
468 int eld_ver; /* (eld_ver == 0) indicates invalid ELD */
469 int cea_edid_ver;
470 char monitor_name[ELD_MAX_MNL + 1];
471 int manufacture_id;
472 int product_id;
473 u64 port_id;
474 int support_hdcp;
475 int support_ai;
476 int conn_type;
477 int aud_synch_delay;
478 int spk_alloc;
479 int sad_count;
480 struct cea_sad sad[ELD_MAX_SAD];
481};
482
483int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
484int snd_hdmi_get_eld(struct sink_eld *, struct hda_codec *, hda_nid_t);
485void snd_hdmi_show_eld(struct sink_eld *eld);
486
446#endif /* __SOUND_HDA_LOCAL_H */ 487#endif /* __SOUND_HDA_LOCAL_H */
diff --git a/sound/pci/hda/patch_intelhdmi.c b/sound/pci/hda/patch_intelhdmi.c
index d99cd6297249..489278d3d773 100644
--- a/sound/pci/hda/patch_intelhdmi.c
+++ b/sound/pci/hda/patch_intelhdmi.c
@@ -30,7 +30,6 @@
30#include <linux/delay.h> 30#include <linux/delay.h>
31#include <linux/slab.h> 31#include <linux/slab.h>
32#include <sound/core.h> 32#include <sound/core.h>
33#include <asm/unaligned.h>
34#include "hda_codec.h" 33#include "hda_codec.h"
35#include "hda_local.h" 34#include "hda_local.h"
36#include "hda_patch.h" 35#include "hda_patch.h"
@@ -40,43 +39,6 @@
40 39
41#define INTEL_HDMI_EVENT_TAG 0x08 40#define INTEL_HDMI_EVENT_TAG 0x08
42 41
43/*
44 * CEA Short Audio Descriptor data
45 */
46struct cea_sad {
47 int channels;
48 int format; /* (format == 0) indicates invalid SAD */
49 int rates;
50 int sample_bits; /* for LPCM */
51 int max_bitrate; /* for AC3...ATRAC */
52 int profile; /* for WMAPRO */
53};
54
55#define ELD_FIXED_BYTES 20
56#define ELD_MAX_MNL 16
57#define ELD_MAX_SAD 16
58
59/*
60 * ELD: EDID Like Data
61 */
62struct sink_eld {
63 int eld_size;
64 int baseline_len;
65 int eld_ver; /* (eld_ver == 0) indicates invalid ELD */
66 int cea_edid_ver;
67 char monitor_name[ELD_MAX_MNL + 1];
68 int manufacture_id;
69 int product_id;
70 u64 port_id;
71 int support_hdcp;
72 int support_ai;
73 int conn_type;
74 int aud_synch_delay;
75 int spk_alloc;
76 int sad_count;
77 struct cea_sad sad[ELD_MAX_SAD];
78};
79
80struct intel_hdmi_spec { 42struct intel_hdmi_spec {
81 struct hda_multi_out multiout; 43 struct hda_multi_out multiout;
82 struct hda_pcm pcm_rec; 44 struct hda_pcm pcm_rec;
@@ -127,160 +89,9 @@ struct hdmi_audio_infoframe {
127}; 89};
128 90
129/* 91/*
130 * SS1:SS0 index => sample size
131 */
132static int cea_sample_sizes[4] = {
133 0, /* 0: Refer to Stream Header */
134 AC_SUPPCM_BITS_16, /* 1: 16 bits */
135 AC_SUPPCM_BITS_20, /* 2: 20 bits */
136 AC_SUPPCM_BITS_24, /* 3: 24 bits */
137};
138
139/*
140 * SF2:SF1:SF0 index => sampling frequency
141 */
142static int cea_sampling_frequencies[8] = {
143 0, /* 0: Refer to Stream Header */
144 SNDRV_PCM_RATE_32000, /* 1: 32000Hz */
145 SNDRV_PCM_RATE_44100, /* 2: 44100Hz */
146 SNDRV_PCM_RATE_48000, /* 3: 48000Hz */
147 SNDRV_PCM_RATE_88200, /* 4: 88200Hz */
148 SNDRV_PCM_RATE_96000, /* 5: 96000Hz */
149 SNDRV_PCM_RATE_176400, /* 6: 176400Hz */
150 SNDRV_PCM_RATE_192000, /* 7: 192000Hz */
151};
152
153enum eld_versions {
154 ELD_VER_CEA_861D = 2,
155 ELD_VER_PARTIAL = 31,
156};
157
158static char *eld_versoin_names[32] = {
159 "0-reserved",
160 "1-reserved",
161 "CEA-861D or below",
162 "3-reserved",
163 [4 ... 30] = "reserved",
164 [31] = "partial"
165};
166
167enum cea_edid_versions {
168 CEA_EDID_VER_NONE = 0,
169 CEA_EDID_VER_CEA861 = 1,
170 CEA_EDID_VER_CEA861A = 2,
171 CEA_EDID_VER_CEA861BCD = 3,
172 CEA_EDID_VER_RESERVED = 4,
173};
174
175static char *cea_edid_version_names[8] = {
176 "no CEA EDID Timing Extension block present",
177 "CEA-861",
178 "CEA-861-A",
179 "CEA-861-B, C or D",
180 "4-reserved",
181 [5 ... 7] = "reserved"
182};
183
184/*
185 * CEA Speaker Allocation data block bits
186 */
187#define CEA_SA_FLR (0 << 0)
188#define CEA_SA_LFE (1 << 1)
189#define CEA_SA_FC (1 << 2)
190#define CEA_SA_RLR (1 << 3)
191#define CEA_SA_RC (1 << 4)
192#define CEA_SA_FLRC (1 << 5)
193#define CEA_SA_RLRC (1 << 6)
194/* the following are not defined in ELD yet */
195#define CEA_SA_FLRW (1 << 7)
196#define CEA_SA_FLRH (1 << 8)
197#define CEA_SA_TC (1 << 9)
198#define CEA_SA_FCH (1 << 10)
199
200static char *cea_speaker_allocation_names[] = {
201 /* 0 */ "FL/FR",
202 /* 1 */ "LFE",
203 /* 2 */ "FC",
204 /* 3 */ "RL/RR",
205 /* 4 */ "RC",
206 /* 5 */ "FLC/FRC",
207 /* 6 */ "RLC/RRC",
208 /* 7 */ "FLW/FRW",
209 /* 8 */ "FLH/FRH",
210 /* 9 */ "TC",
211 /* 10 */ "FCH",
212};
213
214static char *eld_connection_type_names[4] = {
215 "HDMI",
216 "Display Port",
217 "2-reserved",
218 "3-reserved"
219};
220
221enum cea_audio_coding_types {
222 AUDIO_CODING_TYPE_REF_STREAM_HEADER = 0,
223 AUDIO_CODING_TYPE_LPCM = 1,
224 AUDIO_CODING_TYPE_AC3 = 2,
225 AUDIO_CODING_TYPE_MPEG1 = 3,
226 AUDIO_CODING_TYPE_MP3 = 4,
227 AUDIO_CODING_TYPE_MPEG2 = 5,
228 AUDIO_CODING_TYPE_AACLC = 6,
229 AUDIO_CODING_TYPE_DTS = 7,
230 AUDIO_CODING_TYPE_ATRAC = 8,
231 AUDIO_CODING_TYPE_SACD = 9,
232 AUDIO_CODING_TYPE_EAC3 = 10,
233 AUDIO_CODING_TYPE_DTS_HD = 11,
234 AUDIO_CODING_TYPE_MLP = 12,
235 AUDIO_CODING_TYPE_DST = 13,
236 AUDIO_CODING_TYPE_WMAPRO = 14,
237 AUDIO_CODING_TYPE_REF_CXT = 15,
238 /* also include valid xtypes below */
239 AUDIO_CODING_TYPE_HE_AAC = 15,
240 AUDIO_CODING_TYPE_HE_AAC2 = 16,
241 AUDIO_CODING_TYPE_MPEG_SURROUND = 17,
242};
243
244enum cea_audio_coding_xtypes {
245 AUDIO_CODING_XTYPE_HE_REF_CT = 0,
246 AUDIO_CODING_XTYPE_HE_AAC = 1,
247 AUDIO_CODING_XTYPE_HE_AAC2 = 2,
248 AUDIO_CODING_XTYPE_MPEG_SURROUND = 3,
249 AUDIO_CODING_XTYPE_FIRST_RESERVED = 4,
250};
251
252static char *cea_audio_coding_type_names[] = {
253 /* 0 */ "undefined",
254 /* 1 */ "LPCM",
255 /* 2 */ "AC-3",
256 /* 3 */ "MPEG1",
257 /* 4 */ "MP3",
258 /* 5 */ "MPEG2",
259 /* 6 */ "AAC-LC",
260 /* 7 */ "DTS",
261 /* 8 */ "ATRAC",
262 /* 9 */ "DSD(1-bit audio)",
263 /* 10 */ "Dolby Digital Plus(E-AC-3/DD+)",
264 /* 11 */ "DTS-HD",
265 /* 12 */ "Dolby TrueHD(MLP)",
266 /* 13 */ "DST",
267 /* 14 */ "WMAPro",
268 /* 15 */ "HE-AAC",
269 /* 16 */ "HE-AACv2",
270 /* 17 */ "MPEG Surround",
271};
272
273
274/*
275 * HDMI routines 92 * HDMI routines
276 */ 93 */
277 94
278static int hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid)
279{
280 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_DIP_SIZE,
281 AC_DIPSIZE_ELD_BUF);
282}
283
284#ifdef BE_PARANOID 95#ifdef BE_PARANOID
285static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t nid, 96static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t nid,
286 int *packet_index, int *byte_index) 97 int *packet_index, int *byte_index)
@@ -375,294 +186,13 @@ static void hdmi_setup_channel_mapping(struct hda_codec *codec)
375} 186}
376 187
377 188
378/*
379 * ELD(EDID Like Data) routines
380 */
381
382static int hdmi_present_sense(struct hda_codec *codec, hda_nid_t nid)
383{
384 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_PIN_SENSE, 0);
385}
386
387static void hdmi_debug_present_sense(struct hda_codec *codec)
388{
389#ifdef CONFIG_SND_DEBUG_VERBOSE
390 int eldv;
391 int present;
392
393 present = hdmi_present_sense(codec, PIN_NID);
394 eldv = (present & AC_PINSENSE_ELDV);
395 present = (present & AC_PINSENSE_PRESENCE);
396
397 printk(KERN_INFO "pinp = %d, eldv = %d\n", !!present, !!eldv);
398#endif
399}
400
401static unsigned char hdmi_get_eld_byte(struct hda_codec *codec, int byte_index)
402{
403 unsigned int val;
404
405 val = snd_hda_codec_read(codec, PIN_NID, 0,
406 AC_VERB_GET_HDMI_ELDD, byte_index);
407
408#ifdef BE_PARANOID
409 printk(KERN_INFO "ELD data byte %d: 0x%x\n", byte_index, val);
410#endif
411
412 if ((val & AC_ELDD_ELD_VALID) == 0) {
413 snd_printd(KERN_INFO "Invalid ELD data byte %d\n",
414 byte_index);
415 val = 0;
416 }
417
418 return val & AC_ELDD_ELD_DATA;
419}
420
421static inline unsigned char grab_bits(const unsigned char *buf,
422 int byte, int lowbit, int bits)
423{
424 BUG_ON(lowbit > 7);
425 BUG_ON(bits > 8);
426 BUG_ON(bits <= 0);
427
428 return (buf[byte] >> lowbit) & ((1 << bits) - 1);
429}
430
431static void hdmi_update_short_audio_desc(struct cea_sad *a,
432 const unsigned char *buf)
433{
434 int i;
435 int val;
436
437 val = grab_bits(buf, 1, 0, 7);
438 a->rates = 0;
439 for (i = 0; i < 7; i++)
440 if (val & (1 << i))
441 a->rates |= cea_sampling_frequencies[i + 1];
442
443 a->channels = grab_bits(buf, 0, 0, 3);
444 a->channels++;
445
446 a->format = grab_bits(buf, 0, 3, 4);
447 switch (a->format) {
448 case AUDIO_CODING_TYPE_REF_STREAM_HEADER:
449 snd_printd(KERN_INFO
450 "audio coding type 0 not expected in ELD\n");
451 break;
452
453 case AUDIO_CODING_TYPE_LPCM:
454 val = grab_bits(buf, 2, 0, 3);
455 a->sample_bits = 0;
456 for (i = 0; i < 3; i++)
457 if (val & (1 << i))
458 a->sample_bits |= cea_sample_sizes[i + 1];
459 break;
460
461 case AUDIO_CODING_TYPE_AC3:
462 case AUDIO_CODING_TYPE_MPEG1:
463 case AUDIO_CODING_TYPE_MP3:
464 case AUDIO_CODING_TYPE_MPEG2:
465 case AUDIO_CODING_TYPE_AACLC:
466 case AUDIO_CODING_TYPE_DTS:
467 case AUDIO_CODING_TYPE_ATRAC:
468 a->max_bitrate = grab_bits(buf, 2, 0, 8);
469 a->max_bitrate *= 8000;
470 break;
471
472 case AUDIO_CODING_TYPE_SACD:
473 break;
474
475 case AUDIO_CODING_TYPE_EAC3:
476 break;
477
478 case AUDIO_CODING_TYPE_DTS_HD:
479 break;
480
481 case AUDIO_CODING_TYPE_MLP:
482 break;
483
484 case AUDIO_CODING_TYPE_DST:
485 break;
486
487 case AUDIO_CODING_TYPE_WMAPRO:
488 a->profile = grab_bits(buf, 2, 0, 3);
489 break;
490
491 case AUDIO_CODING_TYPE_REF_CXT:
492 a->format = grab_bits(buf, 2, 3, 5);
493 if (a->format == AUDIO_CODING_XTYPE_HE_REF_CT ||
494 a->format >= AUDIO_CODING_XTYPE_FIRST_RESERVED) {
495 snd_printd(KERN_INFO
496 "audio coding xtype %d not expected in ELD\n",
497 a->format);
498 a->format = 0;
499 } else
500 a->format += AUDIO_CODING_TYPE_HE_AAC -
501 AUDIO_CODING_XTYPE_HE_AAC;
502 break;
503 }
504}
505
506static int hdmi_update_sink_eld(struct hda_codec *codec,
507 const unsigned char *buf, int size)
508{
509 struct intel_hdmi_spec *spec = codec->spec;
510 struct sink_eld *e = &spec->sink;
511 int mnl;
512 int i;
513
514 e->eld_ver = grab_bits(buf, 0, 3, 5);
515 if (e->eld_ver != ELD_VER_CEA_861D &&
516 e->eld_ver != ELD_VER_PARTIAL) {
517 snd_printd(KERN_INFO "Unknown ELD version %d\n", e->eld_ver);
518 goto out_fail;
519 }
520
521 e->eld_size = size;
522 e->baseline_len = grab_bits(buf, 2, 0, 8);
523 mnl = grab_bits(buf, 4, 0, 5);
524 e->cea_edid_ver = grab_bits(buf, 4, 5, 3);
525
526 e->support_hdcp = grab_bits(buf, 5, 0, 1);
527 e->support_ai = grab_bits(buf, 5, 1, 1);
528 e->conn_type = grab_bits(buf, 5, 2, 2);
529 e->sad_count = grab_bits(buf, 5, 4, 4);
530
531 e->aud_synch_delay = grab_bits(buf, 6, 0, 8);
532 e->spk_alloc = grab_bits(buf, 7, 0, 7);
533
534 e->port_id = get_unaligned_le64(buf + 8);
535
536 /* not specified, but the spec's tendency is little endian */
537 e->manufacture_id = get_unaligned_le16(buf + 16);
538 e->product_id = get_unaligned_le16(buf + 18);
539
540 if (mnl > ELD_MAX_MNL) {
541 snd_printd(KERN_INFO "MNL is reserved value %d\n", mnl);
542 goto out_fail;
543 } else if (ELD_FIXED_BYTES + mnl > size) {
544 snd_printd(KERN_INFO "out of range MNL %d\n", mnl);
545 goto out_fail;
546 } else
547 strlcpy(e->monitor_name, buf + ELD_FIXED_BYTES, mnl);
548
549 for (i = 0; i < e->sad_count; i++) {
550 if (ELD_FIXED_BYTES + mnl + 3 * (i + 1) > size) {
551 snd_printd(KERN_INFO "out of range SAD %d\n", i);
552 goto out_fail;
553 }
554 hdmi_update_short_audio_desc(e->sad + i,
555 buf + ELD_FIXED_BYTES + mnl + 3 * i);
556 }
557
558 return 0;
559
560out_fail:
561 e->eld_ver = 0;
562 return -EINVAL;
563}
564
565static int hdmi_get_eld(struct hda_codec *codec)
566{
567 int i;
568 int ret;
569 int size;
570 unsigned char *buf;
571
572 i = hdmi_present_sense(codec, PIN_NID) & AC_PINSENSE_ELDV;
573 if (!i)
574 return -ENOENT;
575
576 size = hdmi_get_eld_size(codec, PIN_NID);
577 if (size == 0) {
578 /* wfg: workaround for ASUS P5E-VM HDMI board */
579 snd_printd(KERN_INFO "ELD buf size is 0, force 128\n");
580 size = 128;
581 }
582 if (size < ELD_FIXED_BYTES || size > PAGE_SIZE) {
583 snd_printd(KERN_INFO "Invalid ELD buf size %d\n", size);
584 return -ERANGE;
585 }
586
587 buf = kmalloc(size, GFP_KERNEL);
588 if (!buf)
589 return -ENOMEM;
590
591 for (i = 0; i < size; i++)
592 buf[i] = hdmi_get_eld_byte(codec, i);
593
594 ret = hdmi_update_sink_eld(codec, buf, size);
595
596 kfree(buf);
597 return ret;
598}
599
600static void hdmi_show_short_audio_desc(struct cea_sad *a)
601{
602 printk(KERN_INFO "coding type: %s\n",
603 cea_audio_coding_type_names[a->format]);
604 printk(KERN_INFO "channels: %d\n", a->channels);
605 printk(KERN_INFO "sampling frequencies: 0x%x\n", a->rates);
606
607 if (a->format == AUDIO_CODING_TYPE_LPCM)
608 printk(KERN_INFO "sample bits: 0x%x\n", a->sample_bits);
609
610 if (a->max_bitrate)
611 printk(KERN_INFO "max bitrate: %d HZ\n", a->max_bitrate);
612
613 if (a->profile)
614 printk(KERN_INFO "profile: %d\n", a->profile);
615}
616
617static void hdmi_show_eld(struct hda_codec *codec)
618{
619 int i;
620 int j;
621 struct intel_hdmi_spec *spec = codec->spec;
622 struct sink_eld *e = &spec->sink;
623 char buf[80];
624
625 printk(KERN_INFO "ELD buffer size is %d\n", e->eld_size);
626 printk(KERN_INFO "ELD baseline len is %d*4\n", e->baseline_len);
627 printk(KERN_INFO "vendor block len is %d\n",
628 e->eld_size - e->baseline_len * 4 - 4);
629 printk(KERN_INFO "ELD version is %s\n",
630 eld_versoin_names[e->eld_ver]);
631 printk(KERN_INFO "CEA EDID version is %s\n",
632 cea_edid_version_names[e->cea_edid_ver]);
633 printk(KERN_INFO "manufacture id is 0x%x\n", e->manufacture_id);
634 printk(KERN_INFO "product id is 0x%x\n", e->product_id);
635 printk(KERN_INFO "port id is 0x%llx\n", (long long)e->port_id);
636 printk(KERN_INFO "HDCP support is %d\n", e->support_hdcp);
637 printk(KERN_INFO "AI support is %d\n", e->support_ai);
638 printk(KERN_INFO "SAD count is %d\n", e->sad_count);
639 printk(KERN_INFO "audio sync delay is %x\n", e->aud_synch_delay);
640 printk(KERN_INFO "connection type is %s\n",
641 eld_connection_type_names[e->conn_type]);
642 printk(KERN_INFO "monitor name is %s\n", e->monitor_name);
643
644 j = 0;
645 for (i = 0; i < ARRAY_SIZE(cea_speaker_allocation_names); i++) {
646 if (e->spk_alloc & (1 << i))
647 j += snprintf(buf + j, sizeof(buf) - j, " %s",
648 cea_speaker_allocation_names[i]);
649 }
650 buf[j] = '\0'; /* necessary when j == 0 */
651 printk(KERN_INFO "speaker allocations: (0x%x)%s\n", e->spk_alloc, buf);
652
653 for (i = 0; i < e->sad_count; i++)
654 hdmi_show_short_audio_desc(e->sad + i);
655}
656
657/*
658 * Be careful, ELD buf could be totally rubbish!
659 */
660static void hdmi_parse_eld(struct hda_codec *codec) 189static void hdmi_parse_eld(struct hda_codec *codec)
661{ 190{
662 hdmi_debug_present_sense(codec); 191 struct intel_hdmi_spec *spec = codec->spec;
192 struct sink_eld *eld = &spec->sink;
663 193
664 if (!hdmi_get_eld(codec)) 194 if (!snd_hdmi_get_eld(eld, codec, PIN_NID))
665 hdmi_show_eld(codec); 195 snd_hdmi_show_eld(eld);
666} 196}
667 197
668 198
@@ -676,7 +206,7 @@ static void hdmi_debug_dip_size(struct hda_codec *codec)
676 int i; 206 int i;
677 int size; 207 int size;
678 208
679 size = hdmi_get_eld_size(codec, PIN_NID); 209 size = snd_hdmi_get_eld_size(codec, PIN_NID);
680 printk(KERN_DEBUG "ELD buf size is %d\n", size); 210 printk(KERN_DEBUG "ELD buf size is %d\n", size);
681 211
682 for (i = 0; i < 8; i++) { 212 for (i = 0; i < 8; i++) {
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-01 18:33:35 -0500