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authorWu, Fengguang <fengguang.wu@intel.com>2008-11-04 22:16:56 -0500
committerTakashi Iwai <tiwai@suse.de>2008-11-05 01:54:03 -0500
commit91504877c50a792412e2043a1c2099f054d7254a (patch)
tree5f49fbc695424851bc0852091aef70d3d178f0eb /sound/pci
parentbfc5c26fb692fa7a196108c3b23d9c747d105c00 (diff)
ALSA: hda - Intel HDMI audio support
Add support for Intel G45 integrated HDMI audio codecs. This initial release supports: - 2 channel stereo sound output - report monitor's ELD information Signed-off-by: Wu Fengguang <wfg@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/Kconfig8
-rw-r--r--sound/pci/hda/Makefile1
-rw-r--r--sound/pci/hda/hda_codec.c3
-rw-r--r--sound/pci/hda/hda_patch.h2
-rw-r--r--sound/pci/hda/patch_intelhdmi.c926
5 files changed, 940 insertions, 0 deletions
diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig
index 7e408908b755..21e9327a0ef4 100644
--- a/sound/pci/Kconfig
+++ b/sound/pci/Kconfig
@@ -574,6 +574,14 @@ config SND_HDA_CODEC_NVHDMI
574 Say Y here to include NVIDIA HDMI HD-audio codec support in 574 Say Y here to include NVIDIA HDMI HD-audio codec support in
575 snd-hda-intel driver, such as NVIDIA MCP78 HDMI. 575 snd-hda-intel driver, such as NVIDIA MCP78 HDMI.
576 576
577config SND_HDA_CODEC_INTELHDMI
578 bool "Build INTEL HDMI HD-audio codec support"
579 depends on SND_HDA_INTEL
580 default y
581 help
582 Say Y here to include INTEL HDMI HD-audio codec support in
583 snd-hda-intel driver, such as Eaglelake integrated HDMI.
584
577config SND_HDA_CODEC_CONEXANT 585config SND_HDA_CODEC_CONEXANT
578 bool "Build Conexant HD-audio codec support" 586 bool "Build Conexant HD-audio codec support"
579 depends on SND_HDA_INTEL 587 depends on SND_HDA_INTEL
diff --git a/sound/pci/hda/Makefile b/sound/pci/hda/Makefile
index 1980c6d207e7..6fb5add1e39a 100644
--- a/sound/pci/hda/Makefile
+++ b/sound/pci/hda/Makefile
@@ -16,5 +16,6 @@ snd-hda-intel-$(CONFIG_SND_HDA_CODEC_ATIHDMI) += patch_atihdmi.o
16snd-hda-intel-$(CONFIG_SND_HDA_CODEC_CONEXANT) += patch_conexant.o 16snd-hda-intel-$(CONFIG_SND_HDA_CODEC_CONEXANT) += patch_conexant.o
17snd-hda-intel-$(CONFIG_SND_HDA_CODEC_VIA) += patch_via.o 17snd-hda-intel-$(CONFIG_SND_HDA_CODEC_VIA) += patch_via.o
18snd-hda-intel-$(CONFIG_SND_HDA_CODEC_NVHDMI) += patch_nvhdmi.o 18snd-hda-intel-$(CONFIG_SND_HDA_CODEC_NVHDMI) += patch_nvhdmi.o
19snd-hda-intel-$(CONFIG_SND_HDA_CODEC_INTELHDMI) += patch_intelhdmi.o
19 20
20obj-$(CONFIG_SND_HDA_INTEL) += snd-hda-intel.o 21obj-$(CONFIG_SND_HDA_INTEL) += snd-hda-intel.o
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 3e7cda9c3de5..45695d608c76 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -98,6 +98,9 @@ static const struct hda_codec_preset *hda_preset_tables[] = {
98#ifdef CONFIG_SND_HDA_CODEC_NVHDMI 98#ifdef CONFIG_SND_HDA_CODEC_NVHDMI
99 snd_hda_preset_nvhdmi, 99 snd_hda_preset_nvhdmi,
100#endif 100#endif
101#ifdef CONFIG_SND_HDA_CODEC_INTELHDMI
102 snd_hda_preset_intelhdmi,
103#endif
101 NULL 104 NULL
102}; 105};
103 106
diff --git a/sound/pci/hda/hda_patch.h b/sound/pci/hda/hda_patch.h
index dfbcfa88da44..38212c1020a6 100644
--- a/sound/pci/hda/hda_patch.h
+++ b/sound/pci/hda/hda_patch.h
@@ -20,3 +20,5 @@ extern struct hda_codec_preset snd_hda_preset_conexant[];
20extern struct hda_codec_preset snd_hda_preset_via[]; 20extern struct hda_codec_preset snd_hda_preset_via[];
21/* NVIDIA HDMI codecs */ 21/* NVIDIA HDMI codecs */
22extern struct hda_codec_preset snd_hda_preset_nvhdmi[]; 22extern struct hda_codec_preset snd_hda_preset_nvhdmi[];
23/* INTEL HDMI codecs */
24extern struct hda_codec_preset snd_hda_preset_intelhdmi[];
diff --git a/sound/pci/hda/patch_intelhdmi.c b/sound/pci/hda/patch_intelhdmi.c
new file mode 100644
index 000000000000..8059102dd862
--- /dev/null
+++ b/sound/pci/hda/patch_intelhdmi.c
@@ -0,0 +1,926 @@
1/*
2 *
3 * patch_intelhdmi.c - Patch for Intel HDMI codecs
4 *
5 * Copyright(c) 2008 Intel Corporation. All rights reserved.
6 *
7 * Authors:
8 * Jiang Zhe <zhe.jiang@intel.com>
9 * Wu Fengguang <wfg@linux.intel.com>
10 *
11 * Maintained by:
12 * Wu Fengguang <wfg@linux.intel.com>
13 *
14 * This program is free software; you can redistribute it and/or modify it
15 * under the terms of the GNU General Public License as published by the Free
16 * Software Foundation; either version 2 of the License, or (at your option)
17 * any later version.
18 *
19 * This program is distributed in the hope that it will be useful, but
20 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
21 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
22 * for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software Foundation,
26 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 */
28
29#include <linux/init.h>
30#include <linux/delay.h>
31#include <linux/slab.h>
32#include <sound/core.h>
33#include <asm/unaligned.h>
34#include "hda_codec.h"
35#include "hda_local.h"
36#include "hda_patch.h"
37
38#define CVT_NID 0x02 /* audio converter */
39#define PIN_NID 0x03 /* HDMI output pin */
40
41#define INTEL_HDMI_EVENT_TAG 0x08
42
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 {
81 struct hda_multi_out multiout;
82 struct hda_pcm pcm_rec;
83 struct sink_eld sink;
84};
85
86static struct hda_verb pinout_enable_verb[] = {
87 {PIN_NID, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
88 {} /* terminator */
89};
90
91static struct hda_verb pinout_disable_verb[] = {
92 {PIN_NID, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x00},
93 {}
94};
95
96static struct hda_verb unsolicited_response_verb[] = {
97 {PIN_NID, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN |
98 INTEL_HDMI_EVENT_TAG},
99 {}
100};
101
102static struct hda_verb def_chan_map[] = {
103 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x00},
104 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x11},
105 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x22},
106 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x33},
107 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x44},
108 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x55},
109 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x66},
110 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x77},
111 {}
112};
113
114
115struct hdmi_audio_infoframe {
116 u8 type; /* 0x84 */
117 u8 ver; /* 0x01 */
118 u8 len; /* 0x0a */
119
120 u8 checksum; /* PB0 */
121 u8 CC02_CT47; /* CC in bits 0:2, CT in 4:7 */
122 u8 SS01_SF24;
123 u8 CXT04;
124 u8 CA;
125 u8 LFEPBL01_LSV36_DM_INH7;
126 u8 reserved[5]; /* PB6 - PB10 */
127};
128
129/*
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
276 */
277
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
284static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t nid,
285 int *packet_index, int *byte_index)
286{
287 int val;
288
289 val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_DIP_INDEX, 0);
290
291 *packet_index = val >> 5;
292 *byte_index = val & 0x1f;
293}
294
295static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t nid,
296 int packet_index, int byte_index)
297{
298 int val;
299
300 val = (packet_index << 5) | (byte_index & 0x1f);
301
302 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
303}
304
305static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t nid,
306 unsigned char val)
307{
308 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
309}
310
311static void hdmi_enable_output(struct hda_codec *codec)
312{
313 /* Enable pin out and unmute */
314 snd_hda_sequence_write(codec, pinout_enable_verb);
315 if (get_wcaps(codec, PIN_NID) & AC_WCAP_OUT_AMP)
316 snd_hda_codec_write(codec, PIN_NID, 0,
317 AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
318
319 /* Enable Audio InfoFrame Transmission */
320 hdmi_set_dip_index(codec, PIN_NID, 0x0, 0x0);
321 snd_hda_codec_write(codec, PIN_NID, 0, AC_VERB_SET_HDMI_DIP_XMIT,
322 AC_DIPXMIT_BEST);
323}
324
325static void hdmi_disable_output(struct hda_codec *codec)
326{
327 snd_hda_sequence_write(codec, pinout_disable_verb);
328 if (get_wcaps(codec, PIN_NID) & AC_WCAP_OUT_AMP)
329 snd_hda_codec_write(codec, PIN_NID, 0,
330 AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
331
332 /*
333 * FIXME: noises may arise when playing music after reloading the
334 * kernel module, until the next X restart or monitor repower.
335 */
336}
337
338static int hdmi_get_channel_count(struct hda_codec *codec)
339{
340 return 1 + snd_hda_codec_read(codec, CVT_NID, 0,
341 AC_VERB_GET_CVT_CHAN_COUNT, 0);
342}
343
344static void hdmi_set_channel_count(struct hda_codec *codec, int chs)
345{
346 snd_hda_codec_write(codec, CVT_NID, 0,
347 AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
348
349 if (chs != hdmi_get_channel_count(codec))
350 snd_printd(KERN_INFO "Channel count expect=%d, real=%d\n",
351 chs, hdmi_get_channel_count(codec));
352}
353
354static void hdmi_debug_slot_mapping(struct hda_codec *codec)
355{
356#ifdef CONFIG_SND_DEBUG_VERBOSE
357 int i;
358 int slot;
359
360 for (i = 0; i < 8; i++) {
361 slot = snd_hda_codec_read(codec, CVT_NID, 0,
362 AC_VERB_GET_HDMI_CHAN_SLOT, i);
363 printk(KERN_DEBUG "ASP channel %d => slot %d\n",
364 slot >> 4, slot & 0x7);
365 }
366#endif
367}
368
369static void hdmi_setup_channel_mapping(struct hda_codec *codec)
370{
371 snd_hda_sequence_write(codec, def_chan_map);
372 hdmi_debug_slot_mapping(codec);
373}
374
375
376/*
377 * ELD(EDID Like Data) routines
378 */
379
380static int hdmi_present_sense(struct hda_codec *codec, hda_nid_t nid)
381{
382 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_PIN_SENSE, 0);
383}
384
385static void hdmi_debug_present_sense(struct hda_codec *codec)
386{
387#ifdef CONFIG_SND_DEBUG_VERBOSE
388 int eldv;
389 int present;
390
391 present = hdmi_present_sense(codec, PIN_NID);
392 eldv = (present & AC_PINSENSE_ELDV);
393 present = (present & AC_PINSENSE_PRESENCE);
394
395 printk(KERN_INFO "pinp = %d, eldv = %d\n", !!present, !!eldv);
396#endif
397}
398
399static unsigned char hdmi_get_eld_byte(struct hda_codec *codec, int byte_index)
400{
401 unsigned int val;
402
403 val = snd_hda_codec_read(codec, PIN_NID, 0,
404 AC_VERB_GET_HDMI_ELDD, byte_index);
405
406#ifdef BE_PARANOID
407 printk(KERN_INFO "ELD data byte %d: 0x%x\n", byte_index, val);
408#endif
409
410 if ((val & AC_ELDD_ELD_VALID) == 0) {
411 snd_printd(KERN_INFO "Invalid ELD data byte %d\n",
412 byte_index);
413 val = 0;
414 }
415
416 return val & AC_ELDD_ELD_DATA;
417}
418
419static inline unsigned char grab_bits(const unsigned char *buf,
420 int byte, int lowbit, int bits)
421{
422 BUG_ON(lowbit > 7);
423 BUG_ON(bits > 8);
424 BUG_ON(bits <= 0);
425
426 return (buf[byte] >> lowbit) & ((1 << bits) - 1);
427}
428
429static void hdmi_update_short_audio_desc(struct cea_sad *a,
430 const unsigned char *buf)
431{
432 int i;
433 int val;
434
435 val = grab_bits(buf, 1, 0, 7);
436 a->rates = 0;
437 for (i = 0; i < 7; i++)
438 if (val & (1 << i))
439 a->rates |= cea_sampling_frequencies[i + 1];
440
441 a->channels = grab_bits(buf, 0, 0, 3);
442 a->channels++;
443
444 a->format = grab_bits(buf, 0, 3, 4);
445 switch (a->format) {
446 case AUDIO_CODING_TYPE_REF_STREAM_HEADER:
447 snd_printd(KERN_INFO
448 "audio coding type 0 not expected in ELD\n");
449 break;
450
451 case AUDIO_CODING_TYPE_LPCM:
452 val = grab_bits(buf, 2, 0, 3);
453 a->sample_bits = 0;
454 for (i = 0; i < 3; i++)
455 if (val & (1 << i))
456 a->sample_bits |= cea_sample_sizes[i + 1];
457 break;
458
459 case AUDIO_CODING_TYPE_AC3:
460 case AUDIO_CODING_TYPE_MPEG1:
461 case AUDIO_CODING_TYPE_MP3:
462 case AUDIO_CODING_TYPE_MPEG2:
463 case AUDIO_CODING_TYPE_AACLC:
464 case AUDIO_CODING_TYPE_DTS:
465 case AUDIO_CODING_TYPE_ATRAC:
466 a->max_bitrate = grab_bits(buf, 2, 0, 8);
467 a->max_bitrate *= 8000;
468 break;
469
470 case AUDIO_CODING_TYPE_SACD:
471 break;
472
473 case AUDIO_CODING_TYPE_EAC3:
474 break;
475
476 case AUDIO_CODING_TYPE_DTS_HD:
477 break;
478
479 case AUDIO_CODING_TYPE_MLP:
480 break;
481
482 case AUDIO_CODING_TYPE_DST:
483 break;
484
485 case AUDIO_CODING_TYPE_WMAPRO:
486 a->profile = grab_bits(buf, 2, 0, 3);
487 break;
488
489 case AUDIO_CODING_TYPE_REF_CXT:
490 a->format = grab_bits(buf, 2, 3, 5);
491 if (a->format == AUDIO_CODING_XTYPE_HE_REF_CT ||
492 a->format >= AUDIO_CODING_XTYPE_FIRST_RESERVED) {
493 snd_printd(KERN_INFO
494 "audio coding xtype %d not expected in ELD\n",
495 a->format);
496 a->format = 0;
497 } else
498 a->format += AUDIO_CODING_TYPE_HE_AAC -
499 AUDIO_CODING_XTYPE_HE_AAC;
500 break;
501 }
502}
503
504static int hdmi_update_sink_eld(struct hda_codec *codec,
505 const unsigned char *buf, int size)
506{
507 struct intel_hdmi_spec *spec = codec->spec;
508 struct sink_eld *e = &spec->sink;
509 int mnl;
510 int i;
511
512 e->eld_ver = grab_bits(buf, 0, 3, 5);
513 if (e->eld_ver != ELD_VER_CEA_861D &&
514 e->eld_ver != ELD_VER_PARTIAL) {
515 snd_printd(KERN_INFO "Unknown ELD version %d\n", e->eld_ver);
516 goto out_fail;
517 }
518
519 e->eld_size = size;
520 e->baseline_len = grab_bits(buf, 2, 0, 8);
521 mnl = grab_bits(buf, 4, 0, 5);
522 e->cea_edid_ver = grab_bits(buf, 4, 5, 3);
523
524 e->support_hdcp = grab_bits(buf, 5, 0, 1);
525 e->support_ai = grab_bits(buf, 5, 1, 1);
526 e->conn_type = grab_bits(buf, 5, 2, 2);
527 e->sad_count = grab_bits(buf, 5, 4, 4);
528
529 e->aud_synch_delay = grab_bits(buf, 6, 0, 8);
530 e->spk_alloc = grab_bits(buf, 7, 0, 7);
531
532 e->port_id = get_unaligned_le64(buf + 8);
533
534 /* not specified, but the spec's tendency is little endian */
535 e->manufacture_id = get_unaligned_le16(buf + 16);
536 e->product_id = get_unaligned_le16(buf + 18);
537
538 if (mnl > ELD_MAX_MNL) {
539 snd_printd(KERN_INFO "MNL is reserved value %d\n", mnl);
540 goto out_fail;
541 } else if (ELD_FIXED_BYTES + mnl > size) {
542 snd_printd(KERN_INFO "out of range MNL %d\n", mnl);
543 goto out_fail;
544 } else
545 strlcpy(e->monitor_name, buf + ELD_FIXED_BYTES, mnl);
546
547 for (i = 0; i < e->sad_count; i++) {
548 if (ELD_FIXED_BYTES + mnl + 3 * (i + 1) > size) {
549 snd_printd(KERN_INFO "out of range SAD %d\n", i);
550 goto out_fail;
551 }
552 hdmi_update_short_audio_desc(e->sad + i,
553 buf + ELD_FIXED_BYTES + mnl + 3 * i);
554 }
555
556 return 0;
557
558out_fail:
559 e->eld_ver = 0;
560 return -EINVAL;
561}
562
563static int hdmi_get_eld(struct hda_codec *codec)
564{
565 int i;
566 int ret;
567 int size;
568 unsigned char *buf;
569
570 i = hdmi_present_sense(codec, PIN_NID) & AC_PINSENSE_ELDV;
571 if (!i)
572 return -ENOENT;
573
574 size = hdmi_get_eld_size(codec, PIN_NID);
575 if (size == 0) {
576 /* wfg: workaround for ASUS P5E-VM HDMI board */
577 snd_printd(KERN_INFO "ELD buf size is 0, force 128\n");
578 size = 128;
579 }
580 if (size < ELD_FIXED_BYTES || size > PAGE_SIZE) {
581 snd_printd(KERN_INFO "Invalid ELD buf size %d\n", size);
582 return -ERANGE;
583 }
584
585 buf = kmalloc(size, GFP_KERNEL);
586 if (!buf)
587 return -ENOMEM;
588
589 for (i = 0; i < size; i++)
590 buf[i] = hdmi_get_eld_byte(codec, i);
591
592 ret = hdmi_update_sink_eld(codec, buf, size);
593
594 kfree(buf);
595 return ret;
596}
597
598static void hdmi_show_short_audio_desc(struct cea_sad *a)
599{
600 printk(KERN_INFO "coding type: %s\n",
601 cea_audio_coding_type_names[a->format]);
602 printk(KERN_INFO "channels: %d\n", a->channels);
603 printk(KERN_INFO "sampling frequencies: 0x%x\n", a->rates);
604
605 if (a->format == AUDIO_CODING_TYPE_LPCM)
606 printk(KERN_INFO "sample bits: 0x%x\n", a->sample_bits);
607
608 if (a->max_bitrate)
609 printk(KERN_INFO "max bitrate: %d HZ\n", a->max_bitrate);
610
611 if (a->profile)
612 printk(KERN_INFO "profile: %d\n", a->profile);
613}
614
615static void hdmi_show_eld(struct hda_codec *codec)
616{
617 int i;
618 int j;
619 struct intel_hdmi_spec *spec = codec->spec;
620 struct sink_eld *e = &spec->sink;
621 char buf[80];
622
623 printk(KERN_INFO "ELD buffer size is %d\n", e->eld_size);
624 printk(KERN_INFO "ELD baseline len is %d*4\n", e->baseline_len);
625 printk(KERN_INFO "vendor block len is %d\n",
626 e->eld_size - e->baseline_len * 4 - 4);
627 printk(KERN_INFO "ELD version is %s\n",
628 eld_versoin_names[e->eld_ver]);
629 printk(KERN_INFO "CEA EDID version is %s\n",
630 cea_edid_version_names[e->cea_edid_ver]);
631 printk(KERN_INFO "manufacture id is 0x%x\n", e->manufacture_id);
632 printk(KERN_INFO "product id is 0x%x\n", e->product_id);
633 printk(KERN_INFO "port id is 0x%llx\n", (long long)e->port_id);
634 printk(KERN_INFO "HDCP support is %d\n", e->support_hdcp);
635 printk(KERN_INFO "AI support is %d\n", e->support_ai);
636 printk(KERN_INFO "SAD count is %d\n", e->sad_count);
637 printk(KERN_INFO "audio sync delay is %x\n", e->aud_synch_delay);
638 printk(KERN_INFO "connection type is %s\n",
639 eld_connection_type_names[e->conn_type]);
640 printk(KERN_INFO "monitor name is %s\n", e->monitor_name);
641
642 j = 0;
643 for (i = 0; i < ARRAY_SIZE(cea_speaker_allocation_names); i++) {
644 if (e->spk_alloc & (1 << i))
645 j += snprintf(buf + j, sizeof(buf) - j, " %s",
646 cea_speaker_allocation_names[i]);
647 }
648 buf[j] = '\0'; /* necessary when j == 0 */
649 printk(KERN_INFO "speaker allocations: (0x%x)%s\n", e->spk_alloc, buf);
650
651 for (i = 0; i < e->sad_count; i++)
652 hdmi_show_short_audio_desc(e->sad + i);
653}
654
655/*
656 * Be careful, ELD buf could be totally rubbish!
657 */
658static void hdmi_parse_eld(struct hda_codec *codec)
659{
660 hdmi_debug_present_sense(codec);
661
662 if (!hdmi_get_eld(codec))
663 hdmi_show_eld(codec);
664}
665
666
667/*
668 * Audio Infoframe routines
669 */
670
671static void hdmi_debug_dip_size(struct hda_codec *codec)
672{
673#ifdef CONFIG_SND_DEBUG_VERBOSE
674 int i;
675 int size;
676
677 size = hdmi_get_eld_size(codec, PIN_NID);
678 printk(KERN_DEBUG "ELD buf size is %d\n", size);
679
680 for (i = 0; i < 8; i++) {
681 size = snd_hda_codec_read(codec, PIN_NID, 0,
682 AC_VERB_GET_HDMI_DIP_SIZE, i);
683 printk(KERN_DEBUG "DIP GP[%d] buf size is %d\n", i, size);
684 }
685#endif
686}
687
688static void hdmi_clear_dip_buffers(struct hda_codec *codec)
689{
690#ifdef BE_PARANOID
691 int i, j;
692 int size;
693 int pi, bi;
694 for (i = 0; i < 8; i++) {
695 size = snd_hda_codec_read(codec, PIN_NID, 0,
696 AC_VERB_GET_HDMI_DIP_SIZE, i);
697 if (size == 0)
698 continue;
699
700 hdmi_set_dip_index(codec, PIN_NID, i, 0x0);
701 for (j = 1; j < 1000; j++) {
702 hdmi_write_dip_byte(codec, PIN_NID, 0x0);
703 hdmi_get_dip_index(codec, PIN_NID, &pi, &bi);
704 if (pi != i)
705 snd_printd(KERN_INFO "dip index %d: %d != %d\n",
706 bi, pi, i);
707 if (bi == 0) /* byte index wrapped around */
708 break;
709 }
710 snd_printd(KERN_INFO
711 "DIP GP[%d] buf reported size=%d, written=%d\n",
712 i, size, j);
713 }
714#endif
715}
716
717static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
718 struct snd_pcm_substream *substream)
719{
720 struct hdmi_audio_infoframe audio_infoframe = {
721 .type = 0x84,
722 .ver = 0x01,
723 .len = 0x0a,
724 .CC02_CT47 = substream->runtime->channels - 1,
725 };
726 u8 *params = (u8 *)&audio_infoframe;
727 int i;
728
729 hdmi_debug_dip_size(codec);
730 hdmi_clear_dip_buffers(codec); /* be paranoid */
731
732 hdmi_set_dip_index(codec, PIN_NID, 0x0, 0x0);
733 for (i = 0; i < sizeof(audio_infoframe); i++)
734 hdmi_write_dip_byte(codec, PIN_NID, params[i]);
735}
736
737
738/*
739 * Unsolicited events
740 */
741
742static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
743{
744 int pind = !!(res & AC_UNSOL_RES_PD);
745 int eldv = !!(res & AC_UNSOL_RES_ELDV);
746
747 printk(KERN_INFO "HDMI intrinsic event: PD=%d ELDV=%d\n", pind, eldv);
748
749 if (pind && eldv) {
750 hdmi_parse_eld(codec);
751 /* TODO: do real things about ELD */
752 }
753}
754
755static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
756{
757 int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
758 int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
759 int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
760
761 printk(KERN_INFO "HDMI non-intrinsic event: "
762 "SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
763 subtag,
764 cp_state,
765 cp_ready);
766
767 /* who cares? */
768 if (cp_state)
769 ;
770 if (cp_ready)
771 ;
772}
773
774
775static void intel_hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
776{
777 int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
778 int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
779
780 if (tag != INTEL_HDMI_EVENT_TAG) {
781 snd_printd(KERN_INFO
782 "Unexpected HDMI unsolicited event tag 0x%x\n",
783 tag);
784 return;
785 }
786
787 if (subtag == 0)
788 hdmi_intrinsic_event(codec, res);
789 else
790 hdmi_non_intrinsic_event(codec, res);
791}
792
793/*
794 * Callbacks
795 */
796
797static int intel_hdmi_playback_pcm_open(struct hda_pcm_stream *hinfo,
798 struct hda_codec *codec,
799 struct snd_pcm_substream *substream)
800{
801 struct intel_hdmi_spec *spec = codec->spec;
802
803 return snd_hda_multi_out_dig_open(codec, &spec->multiout);
804}
805
806static int intel_hdmi_playback_pcm_close(struct hda_pcm_stream *hinfo,
807 struct hda_codec *codec,
808 struct snd_pcm_substream *substream)
809{
810 struct intel_hdmi_spec *spec = codec->spec;
811
812 hdmi_disable_output(codec);
813
814 return snd_hda_multi_out_dig_close(codec, &spec->multiout);
815}
816
817static int intel_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
818 struct hda_codec *codec,
819 unsigned int stream_tag,
820 unsigned int format,
821 struct snd_pcm_substream *substream)
822{
823 struct intel_hdmi_spec *spec = codec->spec;
824
825 snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
826 format, substream);
827
828 hdmi_set_channel_count(codec, substream->runtime->channels);
829
830 /* wfg: channel mapping not supported by DEVCTG */
831 hdmi_setup_channel_mapping(codec);
832
833 hdmi_setup_audio_infoframe(codec, substream);
834
835 hdmi_enable_output(codec);
836
837 return 0;
838}
839
840static struct hda_pcm_stream intel_hdmi_pcm_playback = {
841 .substreams = 1,
842 .channels_min = 2,
843 .channels_max = 8,
844 .nid = CVT_NID, /* NID to query formats and rates and setup streams */
845 .ops = {
846 .open = intel_hdmi_playback_pcm_open,
847 .close = intel_hdmi_playback_pcm_close,
848 .prepare = intel_hdmi_playback_pcm_prepare
849 },
850};
851
852static int intel_hdmi_build_pcms(struct hda_codec *codec)
853{
854 struct intel_hdmi_spec *spec = codec->spec;
855 struct hda_pcm *info = &spec->pcm_rec;
856
857 codec->num_pcms = 1;
858 codec->pcm_info = info;
859
860 info->name = "INTEL HDMI";
861 info->pcm_type = HDA_PCM_TYPE_HDMI;
862 info->stream[SNDRV_PCM_STREAM_PLAYBACK] = intel_hdmi_pcm_playback;
863
864 return 0;
865}
866
867static int intel_hdmi_build_controls(struct hda_codec *codec)
868{
869 struct intel_hdmi_spec *spec = codec->spec;
870 int err;
871
872 err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
873 if (err < 0)
874 return err;
875
876 return 0;
877}
878
879static int intel_hdmi_init(struct hda_codec *codec)
880{
881 /* disable audio output as early as possible */
882 hdmi_disable_output(codec);
883
884 snd_hda_sequence_write(codec, unsolicited_response_verb);
885
886 return 0;
887}
888
889static void intel_hdmi_free(struct hda_codec *codec)
890{
891 kfree(codec->spec);
892}
893
894static struct hda_codec_ops intel_hdmi_patch_ops = {
895 .init = intel_hdmi_init,
896 .free = intel_hdmi_free,
897 .build_pcms = intel_hdmi_build_pcms,
898 .build_controls = intel_hdmi_build_controls,
899 .unsol_event = intel_hdmi_unsol_event,
900};
901
902static int patch_intel_hdmi(struct hda_codec *codec)
903{
904 struct intel_hdmi_spec *spec;
905
906 spec = kzalloc(sizeof(*spec), GFP_KERNEL);
907 if (spec == NULL)
908 return -ENOMEM;
909
910 spec->multiout.num_dacs = 0; /* no analog */
911 spec->multiout.max_channels = 8;
912 spec->multiout.dig_out_nid = CVT_NID;
913
914 codec->spec = spec;
915 codec->patch_ops = intel_hdmi_patch_ops;
916
917 return 0;
918}
919
920struct hda_codec_preset snd_hda_preset_intelhdmi[] = {
921 { .id = 0x808629fb, .name = "INTEL G45 DEVCL", .patch = patch_intel_hdmi },
922 { .id = 0x80862801, .name = "INTEL G45 DEVBLC", .patch = patch_intel_hdmi },
923 { .id = 0x80862802, .name = "INTEL G45 DEVCTG", .patch = patch_intel_hdmi },
924 { .id = 0x80862803, .name = "INTEL G45 DEVELK", .patch = patch_intel_hdmi },
925 {} /* terminator */
926};
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 14:17:43 -0500