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authorWu Fengguang <fengguang.wu@intel.com>2010-03-07 21:44:23 -0500
committerTakashi Iwai <tiwai@suse.de>2010-03-08 02:21:08 -0500
commit079d88ccc374d2c1a850b8a83595ba4c907fb3df (patch)
treeea1145a3af7355383bdb59dc75ffe59c3fee2f0e /sound/pci/hda/patch_intelhdmi.c
parent4193d13b2c2b694aa59e629e6daf6269d7922f13 (diff)
ALSA: hdmi - merge common code for intelhdmi and nvhdmi
Create patch_hdmi.c to hold common code from intelhdmi and nvhdmi. For now the patch_hdmi.c file is simply included by patch_intelhdmi.c and patch_nvhdmi.c, and does not represent a real codec. There are no behavior changes to intelhdmi. However nvhdmi made several changes when copying code out of intelhdmi, which are all reverted in this patch. Wei Ni confirmed that the reverted code actually works fine. Tested-by: Wei Ni <wni@nvidia.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_intelhdmi.c')
-rw-r--r--sound/pci/hda/patch_intelhdmi.c821
1 files changed, 13 insertions, 808 deletions
diff --git a/sound/pci/hda/patch_intelhdmi.c b/sound/pci/hda/patch_intelhdmi.c
index 918f40378d52..88d035104cc5 100644
--- a/sound/pci/hda/patch_intelhdmi.c
+++ b/sound/pci/hda/patch_intelhdmi.c
@@ -40,815 +40,20 @@
40 * 40 *
41 * The HDA correspondence of pipes/ports are converter/pin nodes. 41 * The HDA correspondence of pipes/ports are converter/pin nodes.
42 */ 42 */
43#define INTEL_HDMI_CVTS 2 43#define MAX_HDMI_CVTS 2
44#define INTEL_HDMI_PINS 3 44#define MAX_HDMI_PINS 3
45 45
46static char *intel_hdmi_pcm_names[INTEL_HDMI_CVTS] = { 46#include "patch_hdmi.c"
47
48static char *intel_hdmi_pcm_names[MAX_HDMI_CVTS] = {
47 "INTEL HDMI 0", 49 "INTEL HDMI 0",
48 "INTEL HDMI 1", 50 "INTEL HDMI 1",
49}; 51};
50 52
51struct intel_hdmi_spec {
52 int num_cvts;
53 int num_pins;
54 hda_nid_t cvt[INTEL_HDMI_CVTS+1]; /* audio sources */
55 hda_nid_t pin[INTEL_HDMI_PINS+1]; /* audio sinks */
56
57 /*
58 * source connection for each pin
59 */
60 hda_nid_t pin_cvt[INTEL_HDMI_PINS+1];
61
62 /*
63 * HDMI sink attached to each pin
64 */
65 struct hdmi_eld sink_eld[INTEL_HDMI_PINS];
66
67 /*
68 * export one pcm per pipe
69 */
70 struct hda_pcm pcm_rec[INTEL_HDMI_CVTS];
71};
72
73struct hdmi_audio_infoframe {
74 u8 type; /* 0x84 */
75 u8 ver; /* 0x01 */
76 u8 len; /* 0x0a */
77
78 u8 checksum; /* PB0 */
79 u8 CC02_CT47; /* CC in bits 0:2, CT in 4:7 */
80 u8 SS01_SF24;
81 u8 CXT04;
82 u8 CA;
83 u8 LFEPBL01_LSV36_DM_INH7;
84 u8 reserved[5]; /* PB6 - PB10 */
85};
86
87/*
88 * CEA speaker placement:
89 *
90 * FLH FCH FRH
91 * FLW FL FLC FC FRC FR FRW
92 *
93 * LFE
94 * TC
95 *
96 * RL RLC RC RRC RR
97 *
98 * The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M corresponds to
99 * CEA RL/RR; The SMPTE channel _assignment_ C/LFE is swapped to CEA LFE/FC.
100 */
101enum cea_speaker_placement {
102 FL = (1 << 0), /* Front Left */
103 FC = (1 << 1), /* Front Center */
104 FR = (1 << 2), /* Front Right */
105 FLC = (1 << 3), /* Front Left Center */
106 FRC = (1 << 4), /* Front Right Center */
107 RL = (1 << 5), /* Rear Left */
108 RC = (1 << 6), /* Rear Center */
109 RR = (1 << 7), /* Rear Right */
110 RLC = (1 << 8), /* Rear Left Center */
111 RRC = (1 << 9), /* Rear Right Center */
112 LFE = (1 << 10), /* Low Frequency Effect */
113 FLW = (1 << 11), /* Front Left Wide */
114 FRW = (1 << 12), /* Front Right Wide */
115 FLH = (1 << 13), /* Front Left High */
116 FCH = (1 << 14), /* Front Center High */
117 FRH = (1 << 15), /* Front Right High */
118 TC = (1 << 16), /* Top Center */
119};
120
121/*
122 * ELD SA bits in the CEA Speaker Allocation data block
123 */
124static int eld_speaker_allocation_bits[] = {
125 [0] = FL | FR,
126 [1] = LFE,
127 [2] = FC,
128 [3] = RL | RR,
129 [4] = RC,
130 [5] = FLC | FRC,
131 [6] = RLC | RRC,
132 /* the following are not defined in ELD yet */
133 [7] = FLW | FRW,
134 [8] = FLH | FRH,
135 [9] = TC,
136 [10] = FCH,
137};
138
139struct cea_channel_speaker_allocation {
140 int ca_index;
141 int speakers[8];
142
143 /* derived values, just for convenience */
144 int channels;
145 int spk_mask;
146};
147
148/*
149 * ALSA sequence is:
150 *
151 * surround40 surround41 surround50 surround51 surround71
152 * ch0 front left = = = =
153 * ch1 front right = = = =
154 * ch2 rear left = = = =
155 * ch3 rear right = = = =
156 * ch4 LFE center center center
157 * ch5 LFE LFE
158 * ch6 side left
159 * ch7 side right
160 *
161 * surround71 = {FL, FR, RLC, RRC, FC, LFE, RL, RR}
162 */
163static int hdmi_channel_mapping[0x32][8] = {
164 /* stereo */
165 [0x00] = { 0x00, 0x11, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
166 /* 2.1 */
167 [0x01] = { 0x00, 0x11, 0x22, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
168 /* Dolby Surround */
169 [0x02] = { 0x00, 0x11, 0x23, 0xf2, 0xf4, 0xf5, 0xf6, 0xf7 },
170 /* surround40 */
171 [0x08] = { 0x00, 0x11, 0x24, 0x35, 0xf3, 0xf2, 0xf6, 0xf7 },
172 /* 4ch */
173 [0x03] = { 0x00, 0x11, 0x23, 0x32, 0x44, 0xf5, 0xf6, 0xf7 },
174 /* surround41 */
175 [0x09] = { 0x00, 0x11, 0x24, 0x34, 0x43, 0xf2, 0xf6, 0xf7 },
176 /* surround50 */
177 [0x0a] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0xf2, 0xf6, 0xf7 },
178 /* surround51 */
179 [0x0b] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0x52, 0xf6, 0xf7 },
180 /* 7.1 */
181 [0x13] = { 0x00, 0x11, 0x26, 0x37, 0x43, 0x52, 0x64, 0x75 },
182};
183
184/*
185 * This is an ordered list!
186 *
187 * The preceding ones have better chances to be selected by
188 * hdmi_setup_channel_allocation().
189 */
190static struct cea_channel_speaker_allocation channel_allocations[] = {
191/* channel: 7 6 5 4 3 2 1 0 */
192{ .ca_index = 0x00, .speakers = { 0, 0, 0, 0, 0, 0, FR, FL } },
193 /* 2.1 */
194{ .ca_index = 0x01, .speakers = { 0, 0, 0, 0, 0, LFE, FR, FL } },
195 /* Dolby Surround */
196{ .ca_index = 0x02, .speakers = { 0, 0, 0, 0, FC, 0, FR, FL } },
197 /* surround40 */
198{ .ca_index = 0x08, .speakers = { 0, 0, RR, RL, 0, 0, FR, FL } },
199 /* surround41 */
200{ .ca_index = 0x09, .speakers = { 0, 0, RR, RL, 0, LFE, FR, FL } },
201 /* surround50 */
202{ .ca_index = 0x0a, .speakers = { 0, 0, RR, RL, FC, 0, FR, FL } },
203 /* surround51 */
204{ .ca_index = 0x0b, .speakers = { 0, 0, RR, RL, FC, LFE, FR, FL } },
205 /* 6.1 */
206{ .ca_index = 0x0f, .speakers = { 0, RC, RR, RL, FC, LFE, FR, FL } },
207 /* surround71 */
208{ .ca_index = 0x13, .speakers = { RRC, RLC, RR, RL, FC, LFE, FR, FL } },
209
210{ .ca_index = 0x03, .speakers = { 0, 0, 0, 0, FC, LFE, FR, FL } },
211{ .ca_index = 0x04, .speakers = { 0, 0, 0, RC, 0, 0, FR, FL } },
212{ .ca_index = 0x05, .speakers = { 0, 0, 0, RC, 0, LFE, FR, FL } },
213{ .ca_index = 0x06, .speakers = { 0, 0, 0, RC, FC, 0, FR, FL } },
214{ .ca_index = 0x07, .speakers = { 0, 0, 0, RC, FC, LFE, FR, FL } },
215{ .ca_index = 0x0c, .speakers = { 0, RC, RR, RL, 0, 0, FR, FL } },
216{ .ca_index = 0x0d, .speakers = { 0, RC, RR, RL, 0, LFE, FR, FL } },
217{ .ca_index = 0x0e, .speakers = { 0, RC, RR, RL, FC, 0, FR, FL } },
218{ .ca_index = 0x10, .speakers = { RRC, RLC, RR, RL, 0, 0, FR, FL } },
219{ .ca_index = 0x11, .speakers = { RRC, RLC, RR, RL, 0, LFE, FR, FL } },
220{ .ca_index = 0x12, .speakers = { RRC, RLC, RR, RL, FC, 0, FR, FL } },
221{ .ca_index = 0x14, .speakers = { FRC, FLC, 0, 0, 0, 0, FR, FL } },
222{ .ca_index = 0x15, .speakers = { FRC, FLC, 0, 0, 0, LFE, FR, FL } },
223{ .ca_index = 0x16, .speakers = { FRC, FLC, 0, 0, FC, 0, FR, FL } },
224{ .ca_index = 0x17, .speakers = { FRC, FLC, 0, 0, FC, LFE, FR, FL } },
225{ .ca_index = 0x18, .speakers = { FRC, FLC, 0, RC, 0, 0, FR, FL } },
226{ .ca_index = 0x19, .speakers = { FRC, FLC, 0, RC, 0, LFE, FR, FL } },
227{ .ca_index = 0x1a, .speakers = { FRC, FLC, 0, RC, FC, 0, FR, FL } },
228{ .ca_index = 0x1b, .speakers = { FRC, FLC, 0, RC, FC, LFE, FR, FL } },
229{ .ca_index = 0x1c, .speakers = { FRC, FLC, RR, RL, 0, 0, FR, FL } },
230{ .ca_index = 0x1d, .speakers = { FRC, FLC, RR, RL, 0, LFE, FR, FL } },
231{ .ca_index = 0x1e, .speakers = { FRC, FLC, RR, RL, FC, 0, FR, FL } },
232{ .ca_index = 0x1f, .speakers = { FRC, FLC, RR, RL, FC, LFE, FR, FL } },
233{ .ca_index = 0x20, .speakers = { 0, FCH, RR, RL, FC, 0, FR, FL } },
234{ .ca_index = 0x21, .speakers = { 0, FCH, RR, RL, FC, LFE, FR, FL } },
235{ .ca_index = 0x22, .speakers = { TC, 0, RR, RL, FC, 0, FR, FL } },
236{ .ca_index = 0x23, .speakers = { TC, 0, RR, RL, FC, LFE, FR, FL } },
237{ .ca_index = 0x24, .speakers = { FRH, FLH, RR, RL, 0, 0, FR, FL } },
238{ .ca_index = 0x25, .speakers = { FRH, FLH, RR, RL, 0, LFE, FR, FL } },
239{ .ca_index = 0x26, .speakers = { FRW, FLW, RR, RL, 0, 0, FR, FL } },
240{ .ca_index = 0x27, .speakers = { FRW, FLW, RR, RL, 0, LFE, FR, FL } },
241{ .ca_index = 0x28, .speakers = { TC, RC, RR, RL, FC, 0, FR, FL } },
242{ .ca_index = 0x29, .speakers = { TC, RC, RR, RL, FC, LFE, FR, FL } },
243{ .ca_index = 0x2a, .speakers = { FCH, RC, RR, RL, FC, 0, FR, FL } },
244{ .ca_index = 0x2b, .speakers = { FCH, RC, RR, RL, FC, LFE, FR, FL } },
245{ .ca_index = 0x2c, .speakers = { TC, FCH, RR, RL, FC, 0, FR, FL } },
246{ .ca_index = 0x2d, .speakers = { TC, FCH, RR, RL, FC, LFE, FR, FL } },
247{ .ca_index = 0x2e, .speakers = { FRH, FLH, RR, RL, FC, 0, FR, FL } },
248{ .ca_index = 0x2f, .speakers = { FRH, FLH, RR, RL, FC, LFE, FR, FL } },
249{ .ca_index = 0x30, .speakers = { FRW, FLW, RR, RL, FC, 0, FR, FL } },
250{ .ca_index = 0x31, .speakers = { FRW, FLW, RR, RL, FC, LFE, FR, FL } },
251};
252
253/*
254 * HDA/HDMI auto parsing
255 */
256
257static int hda_node_index(hda_nid_t *nids, hda_nid_t nid)
258{
259 int i;
260
261 for (i = 0; nids[i]; i++)
262 if (nids[i] == nid)
263 return i;
264
265 snd_printk(KERN_WARNING "HDMI: nid %d not registered\n", nid);
266 return -EINVAL;
267}
268
269static int intel_hdmi_read_pin_conn(struct hda_codec *codec, hda_nid_t pin_nid)
270{
271 struct intel_hdmi_spec *spec = codec->spec;
272 hda_nid_t conn_list[HDA_MAX_CONNECTIONS];
273 int conn_len, curr;
274 int index;
275
276 if (!(get_wcaps(codec, pin_nid) & AC_WCAP_CONN_LIST)) {
277 snd_printk(KERN_WARNING
278 "HDMI: pin %d wcaps %#x "
279 "does not support connection list\n",
280 pin_nid, get_wcaps(codec, pin_nid));
281 return -EINVAL;
282 }
283
284 conn_len = snd_hda_get_connections(codec, pin_nid, conn_list,
285 HDA_MAX_CONNECTIONS);
286 if (conn_len > 1)
287 curr = snd_hda_codec_read(codec, pin_nid, 0,
288 AC_VERB_GET_CONNECT_SEL, 0);
289 else
290 curr = 0;
291
292 index = hda_node_index(spec->pin, pin_nid);
293 if (index < 0)
294 return -EINVAL;
295
296 spec->pin_cvt[index] = conn_list[curr];
297
298 return 0;
299}
300
301static void hdmi_get_show_eld(struct hda_codec *codec, hda_nid_t pin_nid,
302 struct hdmi_eld *eld)
303{
304 if (!snd_hdmi_get_eld(eld, codec, pin_nid))
305 snd_hdmi_show_eld(eld);
306}
307
308static void hdmi_present_sense(struct hda_codec *codec, hda_nid_t pin_nid,
309 struct hdmi_eld *eld)
310{
311 int present = snd_hda_pin_sense(codec, pin_nid);
312
313 eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
314 eld->eld_valid = !!(present & AC_PINSENSE_ELDV);
315
316 if (present & AC_PINSENSE_ELDV)
317 hdmi_get_show_eld(codec, pin_nid, eld);
318}
319
320static int intel_hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
321{
322 struct intel_hdmi_spec *spec = codec->spec;
323
324 if (spec->num_pins >= INTEL_HDMI_PINS) {
325 snd_printk(KERN_WARNING
326 "HDMI: no space for pin %d \n", pin_nid);
327 return -EINVAL;
328 }
329
330 hdmi_present_sense(codec, pin_nid, &spec->sink_eld[spec->num_pins]);
331
332 spec->pin[spec->num_pins] = pin_nid;
333 spec->num_pins++;
334
335 /*
336 * It is assumed that converter nodes come first in the node list and
337 * hence have been registered and usable now.
338 */
339 return intel_hdmi_read_pin_conn(codec, pin_nid);
340}
341
342static int intel_hdmi_add_cvt(struct hda_codec *codec, hda_nid_t nid)
343{
344 struct intel_hdmi_spec *spec = codec->spec;
345
346 if (spec->num_cvts >= INTEL_HDMI_CVTS) {
347 snd_printk(KERN_WARNING
348 "HDMI: no space for converter %d \n", nid);
349 return -EINVAL;
350 }
351
352 spec->cvt[spec->num_cvts] = nid;
353 spec->num_cvts++;
354
355 return 0;
356}
357
358static int intel_hdmi_parse_codec(struct hda_codec *codec)
359{
360 hda_nid_t nid;
361 int i, nodes;
362
363 nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
364 if (!nid || nodes < 0) {
365 snd_printk(KERN_WARNING "HDMI: failed to get afg sub nodes\n");
366 return -EINVAL;
367 }
368
369 for (i = 0; i < nodes; i++, nid++) {
370 unsigned int caps;
371 unsigned int type;
372
373 caps = snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
374 type = get_wcaps_type(caps);
375
376 if (!(caps & AC_WCAP_DIGITAL))
377 continue;
378
379 switch (type) {
380 case AC_WID_AUD_OUT:
381 if (intel_hdmi_add_cvt(codec, nid) < 0)
382 return -EINVAL;
383 break;
384 case AC_WID_PIN:
385 caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
386 if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
387 continue;
388 if (intel_hdmi_add_pin(codec, nid) < 0)
389 return -EINVAL;
390 break;
391 }
392 }
393
394 /*
395 * G45/IbexPeak don't support EPSS: the unsolicited pin hot plug event
396 * can be lost and presence sense verb will become inaccurate if the
397 * HDA link is powered off at hot plug or hw initialization time.
398 */
399#ifdef CONFIG_SND_HDA_POWER_SAVE
400 if (!(snd_hda_param_read(codec, codec->afg, AC_PAR_POWER_STATE) &
401 AC_PWRST_EPSS))
402 codec->bus->power_keep_link_on = 1;
403#endif
404
405 return 0;
406}
407
408/*
409 * HDMI routines
410 */
411
412#ifdef BE_PARANOID
413static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
414 int *packet_index, int *byte_index)
415{
416 int val;
417
418 val = snd_hda_codec_read(codec, pin_nid, 0,
419 AC_VERB_GET_HDMI_DIP_INDEX, 0);
420
421 *packet_index = val >> 5;
422 *byte_index = val & 0x1f;
423}
424#endif
425
426static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
427 int packet_index, int byte_index)
428{
429 int val;
430
431 val = (packet_index << 5) | (byte_index & 0x1f);
432
433 snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
434}
435
436static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t pin_nid,
437 unsigned char val)
438{
439 snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
440}
441
442static void hdmi_enable_output(struct hda_codec *codec, hda_nid_t pin_nid)
443{
444 /* Unmute */
445 if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
446 snd_hda_codec_write(codec, pin_nid, 0,
447 AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
448 /* Enable pin out */
449 snd_hda_codec_write(codec, pin_nid, 0,
450 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
451}
452
453/*
454 * Enable Audio InfoFrame Transmission
455 */
456static void hdmi_start_infoframe_trans(struct hda_codec *codec,
457 hda_nid_t pin_nid)
458{
459 hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
460 snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
461 AC_DIPXMIT_BEST);
462}
463
464/*
465 * Disable Audio InfoFrame Transmission
466 */
467static void hdmi_stop_infoframe_trans(struct hda_codec *codec,
468 hda_nid_t pin_nid)
469{
470 hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
471 snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
472 AC_DIPXMIT_DISABLE);
473}
474
475static int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t nid)
476{
477 return 1 + snd_hda_codec_read(codec, nid, 0,
478 AC_VERB_GET_CVT_CHAN_COUNT, 0);
479}
480
481static void hdmi_set_channel_count(struct hda_codec *codec,
482 hda_nid_t nid, int chs)
483{
484 if (chs != hdmi_get_channel_count(codec, nid))
485 snd_hda_codec_write(codec, nid, 0,
486 AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
487}
488
489static void hdmi_debug_channel_mapping(struct hda_codec *codec,
490 hda_nid_t pin_nid)
491{
492#ifdef CONFIG_SND_DEBUG_VERBOSE
493 int i;
494 int slot;
495
496 for (i = 0; i < 8; i++) {
497 slot = snd_hda_codec_read(codec, pin_nid, 0,
498 AC_VERB_GET_HDMI_CHAN_SLOT, i);
499 printk(KERN_DEBUG "HDMI: ASP channel %d => slot %d\n",
500 slot >> 4, slot & 0xf);
501 }
502#endif
503}
504
505
506/*
507 * Audio InfoFrame routines
508 */
509
510static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid)
511{
512#ifdef CONFIG_SND_DEBUG_VERBOSE
513 int i;
514 int size;
515
516 size = snd_hdmi_get_eld_size(codec, pin_nid);
517 printk(KERN_DEBUG "HDMI: ELD buf size is %d\n", size);
518
519 for (i = 0; i < 8; i++) {
520 size = snd_hda_codec_read(codec, pin_nid, 0,
521 AC_VERB_GET_HDMI_DIP_SIZE, i);
522 printk(KERN_DEBUG "HDMI: DIP GP[%d] buf size is %d\n", i, size);
523 }
524#endif
525}
526
527static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid)
528{
529#ifdef BE_PARANOID
530 int i, j;
531 int size;
532 int pi, bi;
533 for (i = 0; i < 8; i++) {
534 size = snd_hda_codec_read(codec, pin_nid, 0,
535 AC_VERB_GET_HDMI_DIP_SIZE, i);
536 if (size == 0)
537 continue;
538
539 hdmi_set_dip_index(codec, pin_nid, i, 0x0);
540 for (j = 1; j < 1000; j++) {
541 hdmi_write_dip_byte(codec, pin_nid, 0x0);
542 hdmi_get_dip_index(codec, pin_nid, &pi, &bi);
543 if (pi != i)
544 snd_printd(KERN_INFO "dip index %d: %d != %d\n",
545 bi, pi, i);
546 if (bi == 0) /* byte index wrapped around */
547 break;
548 }
549 snd_printd(KERN_INFO
550 "HDMI: DIP GP[%d] buf reported size=%d, written=%d\n",
551 i, size, j);
552 }
553#endif
554}
555
556static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *ai)
557{
558 u8 *bytes = (u8 *)ai;
559 u8 sum = 0;
560 int i;
561
562 ai->checksum = 0;
563
564 for (i = 0; i < sizeof(*ai); i++)
565 sum += bytes[i];
566
567 ai->checksum = - sum;
568}
569
570static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
571 hda_nid_t pin_nid,
572 struct hdmi_audio_infoframe *ai)
573{
574 u8 *bytes = (u8 *)ai;
575 int i;
576
577 hdmi_debug_dip_size(codec, pin_nid);
578 hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
579
580 hdmi_checksum_audio_infoframe(ai);
581
582 hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
583 for (i = 0; i < sizeof(*ai); i++)
584 hdmi_write_dip_byte(codec, pin_nid, bytes[i]);
585}
586
587/*
588 * Compute derived values in channel_allocations[].
589 */
590static void init_channel_allocations(void)
591{
592 int i, j;
593 struct cea_channel_speaker_allocation *p;
594
595 for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
596 p = channel_allocations + i;
597 p->channels = 0;
598 p->spk_mask = 0;
599 for (j = 0; j < ARRAY_SIZE(p->speakers); j++)
600 if (p->speakers[j]) {
601 p->channels++;
602 p->spk_mask |= p->speakers[j];
603 }
604 }
605}
606
607/*
608 * The transformation takes two steps:
609 *
610 * eld->spk_alloc => (eld_speaker_allocation_bits[]) => spk_mask
611 * spk_mask => (channel_allocations[]) => ai->CA
612 *
613 * TODO: it could select the wrong CA from multiple candidates.
614*/
615static int hdmi_setup_channel_allocation(struct hda_codec *codec, hda_nid_t nid,
616 struct hdmi_audio_infoframe *ai)
617{
618 struct intel_hdmi_spec *spec = codec->spec;
619 struct hdmi_eld *eld;
620 int i;
621 int spk_mask = 0;
622 int channels = 1 + (ai->CC02_CT47 & 0x7);
623 char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
624
625 /*
626 * CA defaults to 0 for basic stereo audio
627 */
628 if (channels <= 2)
629 return 0;
630
631 i = hda_node_index(spec->pin_cvt, nid);
632 if (i < 0)
633 return 0;
634 eld = &spec->sink_eld[i];
635
636 /*
637 * HDMI sink's ELD info cannot always be retrieved for now, e.g.
638 * in console or for audio devices. Assume the highest speakers
639 * configuration, to _not_ prohibit multi-channel audio playback.
640 */
641 if (!eld->spk_alloc)
642 eld->spk_alloc = 0xffff;
643
644 /*
645 * expand ELD's speaker allocation mask
646 *
647 * ELD tells the speaker mask in a compact(paired) form,
648 * expand ELD's notions to match the ones used by Audio InfoFrame.
649 */
650 for (i = 0; i < ARRAY_SIZE(eld_speaker_allocation_bits); i++) {
651 if (eld->spk_alloc & (1 << i))
652 spk_mask |= eld_speaker_allocation_bits[i];
653 }
654
655 /* search for the first working match in the CA table */
656 for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
657 if (channels == channel_allocations[i].channels &&
658 (spk_mask & channel_allocations[i].spk_mask) ==
659 channel_allocations[i].spk_mask) {
660 ai->CA = channel_allocations[i].ca_index;
661 break;
662 }
663 }
664
665 snd_print_channel_allocation(eld->spk_alloc, buf, sizeof(buf));
666 snd_printdd(KERN_INFO
667 "HDMI: select CA 0x%x for %d-channel allocation: %s\n",
668 ai->CA, channels, buf);
669
670 return ai->CA;
671}
672
673static void hdmi_setup_channel_mapping(struct hda_codec *codec,
674 hda_nid_t pin_nid,
675 struct hdmi_audio_infoframe *ai)
676{
677 int i;
678 int ca = ai->CA;
679 int err;
680
681 if (hdmi_channel_mapping[ca][1] == 0) {
682 for (i = 0; i < channel_allocations[ca].channels; i++)
683 hdmi_channel_mapping[ca][i] = i | (i << 4);
684 for (; i < 8; i++)
685 hdmi_channel_mapping[ca][i] = 0xf | (i << 4);
686 }
687
688 for (i = 0; i < 8; i++) {
689 err = snd_hda_codec_write(codec, pin_nid, 0,
690 AC_VERB_SET_HDMI_CHAN_SLOT,
691 hdmi_channel_mapping[ca][i]);
692 if (err) {
693 snd_printdd(KERN_INFO "HDMI: channel mapping failed\n");
694 break;
695 }
696 }
697
698 hdmi_debug_channel_mapping(codec, pin_nid);
699}
700
701static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
702 struct hdmi_audio_infoframe *ai)
703{
704 u8 *bytes = (u8 *)ai;
705 u8 val;
706 int i;
707
708 if (snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_XMIT, 0)
709 != AC_DIPXMIT_BEST)
710 return false;
711
712 hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
713 for (i = 0; i < sizeof(*ai); i++) {
714 val = snd_hda_codec_read(codec, pin_nid, 0,
715 AC_VERB_GET_HDMI_DIP_DATA, 0);
716 if (val != bytes[i])
717 return false;
718 }
719
720 return true;
721}
722
723static void hdmi_setup_audio_infoframe(struct hda_codec *codec, hda_nid_t nid,
724 struct snd_pcm_substream *substream)
725{
726 struct intel_hdmi_spec *spec = codec->spec;
727 hda_nid_t pin_nid;
728 int i;
729 struct hdmi_audio_infoframe ai = {
730 .type = 0x84,
731 .ver = 0x01,
732 .len = 0x0a,
733 .CC02_CT47 = substream->runtime->channels - 1,
734 };
735
736 hdmi_setup_channel_allocation(codec, nid, &ai);
737
738 for (i = 0; i < spec->num_pins; i++) {
739 if (spec->pin_cvt[i] != nid)
740 continue;
741 if (!spec->sink_eld[i].monitor_present)
742 continue;
743
744 pin_nid = spec->pin[i];
745 if (!hdmi_infoframe_uptodate(codec, pin_nid, &ai)) {
746 hdmi_setup_channel_mapping(codec, pin_nid, &ai);
747 hdmi_stop_infoframe_trans(codec, pin_nid);
748 hdmi_fill_audio_infoframe(codec, pin_nid, &ai);
749 hdmi_start_infoframe_trans(codec, pin_nid);
750 }
751 }
752}
753
754
755/* 53/*
756 * Unsolicited events 54 * HDMI callbacks
757 */ 55 */
758 56
759static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
760{
761 struct intel_hdmi_spec *spec = codec->spec;
762 int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
763 int pind = !!(res & AC_UNSOL_RES_PD);
764 int eldv = !!(res & AC_UNSOL_RES_ELDV);
765 int index;
766
767 printk(KERN_INFO
768 "HDMI hot plug event: Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
769 tag, pind, eldv);
770
771 index = hda_node_index(spec->pin, tag);
772 if (index < 0)
773 return;
774
775 spec->sink_eld[index].monitor_present = pind;
776 spec->sink_eld[index].eld_valid = eldv;
777
778 if (pind && eldv) {
779 hdmi_get_show_eld(codec, spec->pin[index], &spec->sink_eld[index]);
780 /* TODO: do real things about ELD */
781 }
782}
783
784static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
785{
786 int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
787 int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
788 int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
789 int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
790
791 printk(KERN_INFO
792 "HDMI CP event: PIN=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
793 tag,
794 subtag,
795 cp_state,
796 cp_ready);
797
798 /* TODO */
799 if (cp_state)
800 ;
801 if (cp_ready)
802 ;
803}
804
805
806static void intel_hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
807{
808 struct intel_hdmi_spec *spec = codec->spec;
809 int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
810 int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
811
812 if (hda_node_index(spec->pin, tag) < 0) {
813 snd_printd(KERN_INFO "Unexpected HDMI event tag 0x%x\n", tag);
814 return;
815 }
816
817 if (subtag == 0)
818 hdmi_intrinsic_event(codec, res);
819 else
820 hdmi_non_intrinsic_event(codec, res);
821}
822
823/*
824 * Callbacks
825 */
826
827static void hdmi_setup_stream(struct hda_codec *codec, hda_nid_t nid,
828 u32 stream_tag, int format)
829{
830 int tag;
831 int fmt;
832
833 tag = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0) >> 4;
834 fmt = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_STREAM_FORMAT, 0);
835
836 snd_printdd("hdmi_setup_stream: "
837 "NID=0x%x, %sstream=0x%x, %sformat=0x%x\n",
838 nid,
839 tag == stream_tag ? "" : "new-",
840 stream_tag,
841 fmt == format ? "" : "new-",
842 format);
843
844 if (tag != stream_tag)
845 snd_hda_codec_write(codec, nid, 0,
846 AC_VERB_SET_CHANNEL_STREAMID, stream_tag << 4);
847 if (fmt != format)
848 snd_hda_codec_write(codec, nid, 0,
849 AC_VERB_SET_STREAM_FORMAT, format);
850}
851
852static int intel_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo, 57static int intel_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
853 struct hda_codec *codec, 58 struct hda_codec *codec,
854 unsigned int stream_tag, 59 unsigned int stream_tag,
@@ -882,7 +87,7 @@ static struct hda_pcm_stream intel_hdmi_pcm_playback = {
882 87
883static int intel_hdmi_build_pcms(struct hda_codec *codec) 88static int intel_hdmi_build_pcms(struct hda_codec *codec)
884{ 89{
885 struct intel_hdmi_spec *spec = codec->spec; 90 struct hdmi_spec *spec = codec->spec;
886 struct hda_pcm *info = spec->pcm_rec; 91 struct hda_pcm *info = spec->pcm_rec;
887 int i; 92 int i;
888 93
@@ -908,7 +113,7 @@ static int intel_hdmi_build_pcms(struct hda_codec *codec)
908 113
909static int intel_hdmi_build_controls(struct hda_codec *codec) 114static int intel_hdmi_build_controls(struct hda_codec *codec)
910{ 115{
911 struct intel_hdmi_spec *spec = codec->spec; 116 struct hdmi_spec *spec = codec->spec;
912 int err; 117 int err;
913 int i; 118 int i;
914 119
@@ -923,7 +128,7 @@ static int intel_hdmi_build_controls(struct hda_codec *codec)
923 128
924static int intel_hdmi_init(struct hda_codec *codec) 129static int intel_hdmi_init(struct hda_codec *codec)
925{ 130{
926 struct intel_hdmi_spec *spec = codec->spec; 131 struct hdmi_spec *spec = codec->spec;
927 int i; 132 int i;
928 133
929 for (i = 0; spec->pin[i]; i++) { 134 for (i = 0; spec->pin[i]; i++) {
@@ -937,7 +142,7 @@ static int intel_hdmi_init(struct hda_codec *codec)
937 142
938static void intel_hdmi_free(struct hda_codec *codec) 143static void intel_hdmi_free(struct hda_codec *codec)
939{ 144{
940 struct intel_hdmi_spec *spec = codec->spec; 145 struct hdmi_spec *spec = codec->spec;
941 int i; 146 int i;
942 147
943 for (i = 0; i < spec->num_pins; i++) 148 for (i = 0; i < spec->num_pins; i++)
@@ -951,12 +156,12 @@ static struct hda_codec_ops intel_hdmi_patch_ops = {
951 .free = intel_hdmi_free, 156 .free = intel_hdmi_free,
952 .build_pcms = intel_hdmi_build_pcms, 157 .build_pcms = intel_hdmi_build_pcms,
953 .build_controls = intel_hdmi_build_controls, 158 .build_controls = intel_hdmi_build_controls,
954 .unsol_event = intel_hdmi_unsol_event, 159 .unsol_event = hdmi_unsol_event,
955}; 160};
956 161
957static int patch_intel_hdmi(struct hda_codec *codec) 162static int patch_intel_hdmi(struct hda_codec *codec)
958{ 163{
959 struct intel_hdmi_spec *spec; 164 struct hdmi_spec *spec;
960 int i; 165 int i;
961 166
962 spec = kzalloc(sizeof(*spec), GFP_KERNEL); 167 spec = kzalloc(sizeof(*spec), GFP_KERNEL);
@@ -964,7 +169,7 @@ static int patch_intel_hdmi(struct hda_codec *codec)
964 return -ENOMEM; 169 return -ENOMEM;
965 170
966 codec->spec = spec; 171 codec->spec = spec;
967 if (intel_hdmi_parse_codec(codec) < 0) { 172 if (hdmi_parse_codec(codec) < 0) {
968 codec->spec = NULL; 173 codec->spec = NULL;
969 kfree(spec); 174 kfree(spec);
970 return -EINVAL; 175 return -EINVAL;
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-25 13:07:40 -0500