xref: /linux/sound/pci/hda/hda_proc.c (revision 3932b9ca55b0be314a36d3e84faff3e823c081f5)
1 /*
2  * Universal Interface for Intel High Definition Audio Codec
3  *
4  * Generic proc interface
5  *
6  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
7  *
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 <linux/slab.h>
26 #include <sound/core.h>
27 #include <linux/module.h>
28 #include "hda_codec.h"
29 #include "hda_local.h"
30 
31 static int dump_coef = -1;
32 module_param(dump_coef, int, 0644);
33 MODULE_PARM_DESC(dump_coef, "Dump processing coefficients in codec proc file (-1=auto, 0=disable, 1=enable)");
34 
35 static char *bits_names(unsigned int bits, char *names[], int size)
36 {
37 	int i, n;
38 	static char buf[128];
39 
40 	for (i = 0, n = 0; i < size; i++) {
41 		if (bits & (1U<<i) && names[i])
42 			n += snprintf(buf + n, sizeof(buf) - n, " %s",
43 				      names[i]);
44 	}
45 	buf[n] = '\0';
46 
47 	return buf;
48 }
49 
50 static const char *get_wid_type_name(unsigned int wid_value)
51 {
52 	static char *names[16] = {
53 		[AC_WID_AUD_OUT] = "Audio Output",
54 		[AC_WID_AUD_IN] = "Audio Input",
55 		[AC_WID_AUD_MIX] = "Audio Mixer",
56 		[AC_WID_AUD_SEL] = "Audio Selector",
57 		[AC_WID_PIN] = "Pin Complex",
58 		[AC_WID_POWER] = "Power Widget",
59 		[AC_WID_VOL_KNB] = "Volume Knob Widget",
60 		[AC_WID_BEEP] = "Beep Generator Widget",
61 		[AC_WID_VENDOR] = "Vendor Defined Widget",
62 	};
63 	if (wid_value == -1)
64 		return "UNKNOWN Widget";
65 	wid_value &= 0xf;
66 	if (names[wid_value])
67 		return names[wid_value];
68 	else
69 		return "UNKNOWN Widget";
70 }
71 
72 static void print_nid_array(struct snd_info_buffer *buffer,
73 			    struct hda_codec *codec, hda_nid_t nid,
74 			    struct snd_array *array)
75 {
76 	int i;
77 	struct hda_nid_item *items = array->list, *item;
78 	struct snd_kcontrol *kctl;
79 	for (i = 0; i < array->used; i++) {
80 		item = &items[i];
81 		if (item->nid == nid) {
82 			kctl = item->kctl;
83 			snd_iprintf(buffer,
84 			  "  Control: name=\"%s\", index=%i, device=%i\n",
85 			  kctl->id.name, kctl->id.index + item->index,
86 			  kctl->id.device);
87 			if (item->flags & HDA_NID_ITEM_AMP)
88 				snd_iprintf(buffer,
89 				  "    ControlAmp: chs=%lu, dir=%s, "
90 				  "idx=%lu, ofs=%lu\n",
91 				  get_amp_channels(kctl),
92 				  get_amp_direction(kctl) ? "Out" : "In",
93 				  get_amp_index(kctl),
94 				  get_amp_offset(kctl));
95 		}
96 	}
97 }
98 
99 static void print_nid_pcms(struct snd_info_buffer *buffer,
100 			   struct hda_codec *codec, hda_nid_t nid)
101 {
102 	int pcm, type;
103 	struct hda_pcm *cpcm;
104 	for (pcm = 0; pcm < codec->num_pcms; pcm++) {
105 		cpcm = &codec->pcm_info[pcm];
106 		for (type = 0; type < 2; type++) {
107 			if (cpcm->stream[type].nid != nid || cpcm->pcm == NULL)
108 				continue;
109 			snd_iprintf(buffer, "  Device: name=\"%s\", "
110 				    "type=\"%s\", device=%i\n",
111 				    cpcm->name,
112 				    snd_hda_pcm_type_name[cpcm->pcm_type],
113 				    cpcm->pcm->device);
114 		}
115 	}
116 }
117 
118 static void print_amp_caps(struct snd_info_buffer *buffer,
119 			   struct hda_codec *codec, hda_nid_t nid, int dir)
120 {
121 	unsigned int caps;
122 	caps = snd_hda_param_read(codec, nid,
123 				  dir == HDA_OUTPUT ?
124 				    AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
125 	if (caps == -1 || caps == 0) {
126 		snd_iprintf(buffer, "N/A\n");
127 		return;
128 	}
129 	snd_iprintf(buffer, "ofs=0x%02x, nsteps=0x%02x, stepsize=0x%02x, "
130 		    "mute=%x\n",
131 		    caps & AC_AMPCAP_OFFSET,
132 		    (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT,
133 		    (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT,
134 		    (caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT);
135 }
136 
137 static void print_amp_vals(struct snd_info_buffer *buffer,
138 			   struct hda_codec *codec, hda_nid_t nid,
139 			   int dir, int stereo, int indices)
140 {
141 	unsigned int val;
142 	int i;
143 
144 	dir = dir == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
145 	for (i = 0; i < indices; i++) {
146 		snd_iprintf(buffer, " [");
147 		val = snd_hda_codec_read(codec, nid, 0,
148 					 AC_VERB_GET_AMP_GAIN_MUTE,
149 					 AC_AMP_GET_LEFT | dir | i);
150 		snd_iprintf(buffer, "0x%02x", val);
151 		if (stereo) {
152 			val = snd_hda_codec_read(codec, nid, 0,
153 						 AC_VERB_GET_AMP_GAIN_MUTE,
154 						 AC_AMP_GET_RIGHT | dir | i);
155 			snd_iprintf(buffer, " 0x%02x", val);
156 		}
157 		snd_iprintf(buffer, "]");
158 	}
159 	snd_iprintf(buffer, "\n");
160 }
161 
162 static void print_pcm_rates(struct snd_info_buffer *buffer, unsigned int pcm)
163 {
164 	static unsigned int rates[] = {
165 		8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
166 		96000, 176400, 192000, 384000
167 	};
168 	int i;
169 
170 	pcm &= AC_SUPPCM_RATES;
171 	snd_iprintf(buffer, "    rates [0x%x]:", pcm);
172 	for (i = 0; i < ARRAY_SIZE(rates); i++)
173 		if (pcm & (1 << i))
174 			snd_iprintf(buffer,  " %d", rates[i]);
175 	snd_iprintf(buffer, "\n");
176 }
177 
178 static void print_pcm_bits(struct snd_info_buffer *buffer, unsigned int pcm)
179 {
180 	char buf[SND_PRINT_BITS_ADVISED_BUFSIZE];
181 
182 	snd_iprintf(buffer, "    bits [0x%x]:", (pcm >> 16) & 0xff);
183 	snd_print_pcm_bits(pcm, buf, sizeof(buf));
184 	snd_iprintf(buffer, "%s\n", buf);
185 }
186 
187 static void print_pcm_formats(struct snd_info_buffer *buffer,
188 			      unsigned int streams)
189 {
190 	snd_iprintf(buffer, "    formats [0x%x]:", streams & 0xf);
191 	if (streams & AC_SUPFMT_PCM)
192 		snd_iprintf(buffer, " PCM");
193 	if (streams & AC_SUPFMT_FLOAT32)
194 		snd_iprintf(buffer, " FLOAT");
195 	if (streams & AC_SUPFMT_AC3)
196 		snd_iprintf(buffer, " AC3");
197 	snd_iprintf(buffer, "\n");
198 }
199 
200 static void print_pcm_caps(struct snd_info_buffer *buffer,
201 			   struct hda_codec *codec, hda_nid_t nid)
202 {
203 	unsigned int pcm = snd_hda_param_read(codec, nid, AC_PAR_PCM);
204 	unsigned int stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
205 	if (pcm == -1 || stream == -1) {
206 		snd_iprintf(buffer, "N/A\n");
207 		return;
208 	}
209 	print_pcm_rates(buffer, pcm);
210 	print_pcm_bits(buffer, pcm);
211 	print_pcm_formats(buffer, stream);
212 }
213 
214 static const char *get_jack_connection(u32 cfg)
215 {
216 	static char *names[16] = {
217 		"Unknown", "1/8", "1/4", "ATAPI",
218 		"RCA", "Optical","Digital", "Analog",
219 		"DIN", "XLR", "RJ11", "Comb",
220 		NULL, NULL, NULL, "Other"
221 	};
222 	cfg = (cfg & AC_DEFCFG_CONN_TYPE) >> AC_DEFCFG_CONN_TYPE_SHIFT;
223 	if (names[cfg])
224 		return names[cfg];
225 	else
226 		return "UNKNOWN";
227 }
228 
229 static const char *get_jack_color(u32 cfg)
230 {
231 	static char *names[16] = {
232 		"Unknown", "Black", "Grey", "Blue",
233 		"Green", "Red", "Orange", "Yellow",
234 		"Purple", "Pink", NULL, NULL,
235 		NULL, NULL, "White", "Other",
236 	};
237 	cfg = (cfg & AC_DEFCFG_COLOR) >> AC_DEFCFG_COLOR_SHIFT;
238 	if (names[cfg])
239 		return names[cfg];
240 	else
241 		return "UNKNOWN";
242 }
243 
244 static void print_pin_caps(struct snd_info_buffer *buffer,
245 			   struct hda_codec *codec, hda_nid_t nid,
246 			   int *supports_vref)
247 {
248 	static char *jack_conns[4] = { "Jack", "N/A", "Fixed", "Both" };
249 	unsigned int caps, val;
250 
251 	caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
252 	snd_iprintf(buffer, "  Pincap 0x%08x:", caps);
253 	if (caps & AC_PINCAP_IN)
254 		snd_iprintf(buffer, " IN");
255 	if (caps & AC_PINCAP_OUT)
256 		snd_iprintf(buffer, " OUT");
257 	if (caps & AC_PINCAP_HP_DRV)
258 		snd_iprintf(buffer, " HP");
259 	if (caps & AC_PINCAP_EAPD)
260 		snd_iprintf(buffer, " EAPD");
261 	if (caps & AC_PINCAP_PRES_DETECT)
262 		snd_iprintf(buffer, " Detect");
263 	if (caps & AC_PINCAP_BALANCE)
264 		snd_iprintf(buffer, " Balanced");
265 	if (caps & AC_PINCAP_HDMI) {
266 		/* Realtek uses this bit as a different meaning */
267 		if ((codec->vendor_id >> 16) == 0x10ec)
268 			snd_iprintf(buffer, " R/L");
269 		else {
270 			if (caps & AC_PINCAP_HBR)
271 				snd_iprintf(buffer, " HBR");
272 			snd_iprintf(buffer, " HDMI");
273 		}
274 	}
275 	if (caps & AC_PINCAP_DP)
276 		snd_iprintf(buffer, " DP");
277 	if (caps & AC_PINCAP_TRIG_REQ)
278 		snd_iprintf(buffer, " Trigger");
279 	if (caps & AC_PINCAP_IMP_SENSE)
280 		snd_iprintf(buffer, " ImpSense");
281 	snd_iprintf(buffer, "\n");
282 	if (caps & AC_PINCAP_VREF) {
283 		unsigned int vref =
284 			(caps & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
285 		snd_iprintf(buffer, "    Vref caps:");
286 		if (vref & AC_PINCAP_VREF_HIZ)
287 			snd_iprintf(buffer, " HIZ");
288 		if (vref & AC_PINCAP_VREF_50)
289 			snd_iprintf(buffer, " 50");
290 		if (vref & AC_PINCAP_VREF_GRD)
291 			snd_iprintf(buffer, " GRD");
292 		if (vref & AC_PINCAP_VREF_80)
293 			snd_iprintf(buffer, " 80");
294 		if (vref & AC_PINCAP_VREF_100)
295 			snd_iprintf(buffer, " 100");
296 		snd_iprintf(buffer, "\n");
297 		*supports_vref = 1;
298 	} else
299 		*supports_vref = 0;
300 	if (caps & AC_PINCAP_EAPD) {
301 		val = snd_hda_codec_read(codec, nid, 0,
302 					 AC_VERB_GET_EAPD_BTLENABLE, 0);
303 		snd_iprintf(buffer, "  EAPD 0x%x:", val);
304 		if (val & AC_EAPDBTL_BALANCED)
305 			snd_iprintf(buffer, " BALANCED");
306 		if (val & AC_EAPDBTL_EAPD)
307 			snd_iprintf(buffer, " EAPD");
308 		if (val & AC_EAPDBTL_LR_SWAP)
309 			snd_iprintf(buffer, " R/L");
310 		snd_iprintf(buffer, "\n");
311 	}
312 	caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
313 	snd_iprintf(buffer, "  Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
314 		    jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
315 		    snd_hda_get_jack_type(caps),
316 		    snd_hda_get_jack_connectivity(caps),
317 		    snd_hda_get_jack_location(caps));
318 	snd_iprintf(buffer, "    Conn = %s, Color = %s\n",
319 		    get_jack_connection(caps),
320 		    get_jack_color(caps));
321 	/* Default association and sequence values refer to default grouping
322 	 * of pin complexes and their sequence within the group. This is used
323 	 * for priority and resource allocation.
324 	 */
325 	snd_iprintf(buffer, "    DefAssociation = 0x%x, Sequence = 0x%x\n",
326 		    (caps & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT,
327 		    caps & AC_DEFCFG_SEQUENCE);
328 	if (((caps & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT) &
329 	    AC_DEFCFG_MISC_NO_PRESENCE) {
330 		/* Miscellaneous bit indicates external hardware does not
331 		 * support presence detection even if the pin complex
332 		 * indicates it is supported.
333 		 */
334 		snd_iprintf(buffer, "    Misc = NO_PRESENCE\n");
335 	}
336 }
337 
338 static void print_pin_ctls(struct snd_info_buffer *buffer,
339 			   struct hda_codec *codec, hda_nid_t nid,
340 			   int supports_vref)
341 {
342 	unsigned int pinctls;
343 
344 	pinctls = snd_hda_codec_read(codec, nid, 0,
345 				     AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
346 	snd_iprintf(buffer, "  Pin-ctls: 0x%02x:", pinctls);
347 	if (pinctls & AC_PINCTL_IN_EN)
348 		snd_iprintf(buffer, " IN");
349 	if (pinctls & AC_PINCTL_OUT_EN)
350 		snd_iprintf(buffer, " OUT");
351 	if (pinctls & AC_PINCTL_HP_EN)
352 		snd_iprintf(buffer, " HP");
353 	if (supports_vref) {
354 		int vref = pinctls & AC_PINCTL_VREFEN;
355 		switch (vref) {
356 		case AC_PINCTL_VREF_HIZ:
357 			snd_iprintf(buffer, " VREF_HIZ");
358 			break;
359 		case AC_PINCTL_VREF_50:
360 			snd_iprintf(buffer, " VREF_50");
361 			break;
362 		case AC_PINCTL_VREF_GRD:
363 			snd_iprintf(buffer, " VREF_GRD");
364 			break;
365 		case AC_PINCTL_VREF_80:
366 			snd_iprintf(buffer, " VREF_80");
367 			break;
368 		case AC_PINCTL_VREF_100:
369 			snd_iprintf(buffer, " VREF_100");
370 			break;
371 		}
372 	}
373 	snd_iprintf(buffer, "\n");
374 }
375 
376 static void print_vol_knob(struct snd_info_buffer *buffer,
377 			   struct hda_codec *codec, hda_nid_t nid)
378 {
379 	unsigned int cap = snd_hda_param_read(codec, nid,
380 					      AC_PAR_VOL_KNB_CAP);
381 	snd_iprintf(buffer, "  Volume-Knob: delta=%d, steps=%d, ",
382 		    (cap >> 7) & 1, cap & 0x7f);
383 	cap = snd_hda_codec_read(codec, nid, 0,
384 				 AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
385 	snd_iprintf(buffer, "direct=%d, val=%d\n",
386 		    (cap >> 7) & 1, cap & 0x7f);
387 }
388 
389 static void print_audio_io(struct snd_info_buffer *buffer,
390 			   struct hda_codec *codec, hda_nid_t nid,
391 			   unsigned int wid_type)
392 {
393 	int conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
394 	snd_iprintf(buffer,
395 		    "  Converter: stream=%d, channel=%d\n",
396 		    (conv & AC_CONV_STREAM) >> AC_CONV_STREAM_SHIFT,
397 		    conv & AC_CONV_CHANNEL);
398 
399 	if (wid_type == AC_WID_AUD_IN && (conv & AC_CONV_CHANNEL) == 0) {
400 		int sdi = snd_hda_codec_read(codec, nid, 0,
401 					     AC_VERB_GET_SDI_SELECT, 0);
402 		snd_iprintf(buffer, "  SDI-Select: %d\n",
403 			    sdi & AC_SDI_SELECT);
404 	}
405 }
406 
407 static void print_digital_conv(struct snd_info_buffer *buffer,
408 			       struct hda_codec *codec, hda_nid_t nid)
409 {
410 	unsigned int digi1 = snd_hda_codec_read(codec, nid, 0,
411 						AC_VERB_GET_DIGI_CONVERT_1, 0);
412 	unsigned char digi2 = digi1 >> 8;
413 	unsigned char digi3 = digi1 >> 16;
414 
415 	snd_iprintf(buffer, "  Digital:");
416 	if (digi1 & AC_DIG1_ENABLE)
417 		snd_iprintf(buffer, " Enabled");
418 	if (digi1 & AC_DIG1_V)
419 		snd_iprintf(buffer, " Validity");
420 	if (digi1 & AC_DIG1_VCFG)
421 		snd_iprintf(buffer, " ValidityCfg");
422 	if (digi1 & AC_DIG1_EMPHASIS)
423 		snd_iprintf(buffer, " Preemphasis");
424 	if (digi1 & AC_DIG1_COPYRIGHT)
425 		snd_iprintf(buffer, " Non-Copyright");
426 	if (digi1 & AC_DIG1_NONAUDIO)
427 		snd_iprintf(buffer, " Non-Audio");
428 	if (digi1 & AC_DIG1_PROFESSIONAL)
429 		snd_iprintf(buffer, " Pro");
430 	if (digi1 & AC_DIG1_LEVEL)
431 		snd_iprintf(buffer, " GenLevel");
432 	if (digi3 & AC_DIG3_KAE)
433 		snd_iprintf(buffer, " KAE");
434 	snd_iprintf(buffer, "\n");
435 	snd_iprintf(buffer, "  Digital category: 0x%x\n",
436 		    digi2 & AC_DIG2_CC);
437 	snd_iprintf(buffer, "  IEC Coding Type: 0x%x\n",
438 			digi3 & AC_DIG3_ICT);
439 }
440 
441 static const char *get_pwr_state(u32 state)
442 {
443 	static const char * const buf[] = {
444 		"D0", "D1", "D2", "D3", "D3cold"
445 	};
446 	if (state < ARRAY_SIZE(buf))
447 		return buf[state];
448 	return "UNKNOWN";
449 }
450 
451 static void print_power_state(struct snd_info_buffer *buffer,
452 			      struct hda_codec *codec, hda_nid_t nid)
453 {
454 	static char *names[] = {
455 		[ilog2(AC_PWRST_D0SUP)]		= "D0",
456 		[ilog2(AC_PWRST_D1SUP)]		= "D1",
457 		[ilog2(AC_PWRST_D2SUP)]		= "D2",
458 		[ilog2(AC_PWRST_D3SUP)]		= "D3",
459 		[ilog2(AC_PWRST_D3COLDSUP)]	= "D3cold",
460 		[ilog2(AC_PWRST_S3D3COLDSUP)]	= "S3D3cold",
461 		[ilog2(AC_PWRST_CLKSTOP)]	= "CLKSTOP",
462 		[ilog2(AC_PWRST_EPSS)]		= "EPSS",
463 	};
464 
465 	int sup = snd_hda_param_read(codec, nid, AC_PAR_POWER_STATE);
466 	int pwr = snd_hda_codec_read(codec, nid, 0,
467 				     AC_VERB_GET_POWER_STATE, 0);
468 	if (sup != -1)
469 		snd_iprintf(buffer, "  Power states: %s\n",
470 			    bits_names(sup, names, ARRAY_SIZE(names)));
471 
472 	snd_iprintf(buffer, "  Power: setting=%s, actual=%s",
473 		    get_pwr_state(pwr & AC_PWRST_SETTING),
474 		    get_pwr_state((pwr & AC_PWRST_ACTUAL) >>
475 				  AC_PWRST_ACTUAL_SHIFT));
476 	if (pwr & AC_PWRST_ERROR)
477 		snd_iprintf(buffer, ", Error");
478 	if (pwr & AC_PWRST_CLK_STOP_OK)
479 		snd_iprintf(buffer, ", Clock-stop-OK");
480 	if (pwr & AC_PWRST_SETTING_RESET)
481 		snd_iprintf(buffer, ", Setting-reset");
482 	snd_iprintf(buffer, "\n");
483 }
484 
485 static void print_unsol_cap(struct snd_info_buffer *buffer,
486 			      struct hda_codec *codec, hda_nid_t nid)
487 {
488 	int unsol = snd_hda_codec_read(codec, nid, 0,
489 				       AC_VERB_GET_UNSOLICITED_RESPONSE, 0);
490 	snd_iprintf(buffer,
491 		    "  Unsolicited: tag=%02x, enabled=%d\n",
492 		    unsol & AC_UNSOL_TAG,
493 		    (unsol & AC_UNSOL_ENABLED) ? 1 : 0);
494 }
495 
496 static inline bool can_dump_coef(struct hda_codec *codec)
497 {
498 	switch (dump_coef) {
499 	case 0: return false;
500 	case 1: return true;
501 	default: return codec->dump_coef;
502 	}
503 }
504 
505 static void print_proc_caps(struct snd_info_buffer *buffer,
506 			    struct hda_codec *codec, hda_nid_t nid)
507 {
508 	unsigned int i, ncoeff, oldindex;
509 	unsigned int proc_caps = snd_hda_param_read(codec, nid,
510 						    AC_PAR_PROC_CAP);
511 	ncoeff = (proc_caps & AC_PCAP_NUM_COEF) >> AC_PCAP_NUM_COEF_SHIFT;
512 	snd_iprintf(buffer, "  Processing caps: benign=%d, ncoeff=%d\n",
513 		    proc_caps & AC_PCAP_BENIGN, ncoeff);
514 
515 	if (!can_dump_coef(codec))
516 		return;
517 
518 	/* Note: This is racy - another process could run in parallel and change
519 	   the coef index too. */
520 	oldindex = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_COEF_INDEX, 0);
521 	for (i = 0; i < ncoeff; i++) {
522 		unsigned int val;
523 		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, i);
524 		val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_PROC_COEF,
525 					 0);
526 		snd_iprintf(buffer, "    Coeff 0x%02x: 0x%04x\n", i, val);
527 	}
528 	snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, oldindex);
529 }
530 
531 static void print_conn_list(struct snd_info_buffer *buffer,
532 			    struct hda_codec *codec, hda_nid_t nid,
533 			    unsigned int wid_type, hda_nid_t *conn,
534 			    int conn_len)
535 {
536 	int c, curr = -1;
537 	const hda_nid_t *list;
538 	int cache_len;
539 
540 	if (conn_len > 1 &&
541 	    wid_type != AC_WID_AUD_MIX &&
542 	    wid_type != AC_WID_VOL_KNB &&
543 	    wid_type != AC_WID_POWER)
544 		curr = snd_hda_codec_read(codec, nid, 0,
545 					  AC_VERB_GET_CONNECT_SEL, 0);
546 	snd_iprintf(buffer, "  Connection: %d\n", conn_len);
547 	if (conn_len > 0) {
548 		snd_iprintf(buffer, "    ");
549 		for (c = 0; c < conn_len; c++) {
550 			snd_iprintf(buffer, " 0x%02x", conn[c]);
551 			if (c == curr)
552 				snd_iprintf(buffer, "*");
553 		}
554 		snd_iprintf(buffer, "\n");
555 	}
556 
557 	/* Get Cache connections info */
558 	cache_len = snd_hda_get_conn_list(codec, nid, &list);
559 	if (cache_len != conn_len
560 			|| memcmp(list, conn, conn_len)) {
561 		snd_iprintf(buffer, "  In-driver Connection: %d\n", cache_len);
562 		if (cache_len > 0) {
563 			snd_iprintf(buffer, "    ");
564 			for (c = 0; c < cache_len; c++)
565 				snd_iprintf(buffer, " 0x%02x", list[c]);
566 			snd_iprintf(buffer, "\n");
567 		}
568 	}
569 }
570 
571 static void print_gpio(struct snd_info_buffer *buffer,
572 		       struct hda_codec *codec, hda_nid_t nid)
573 {
574 	unsigned int gpio =
575 		snd_hda_param_read(codec, codec->afg, AC_PAR_GPIO_CAP);
576 	unsigned int enable, direction, wake, unsol, sticky, data;
577 	int i, max;
578 	snd_iprintf(buffer, "GPIO: io=%d, o=%d, i=%d, "
579 		    "unsolicited=%d, wake=%d\n",
580 		    gpio & AC_GPIO_IO_COUNT,
581 		    (gpio & AC_GPIO_O_COUNT) >> AC_GPIO_O_COUNT_SHIFT,
582 		    (gpio & AC_GPIO_I_COUNT) >> AC_GPIO_I_COUNT_SHIFT,
583 		    (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
584 		    (gpio & AC_GPIO_WAKE) ? 1 : 0);
585 	max = gpio & AC_GPIO_IO_COUNT;
586 	if (!max || max > 8)
587 		return;
588 	enable = snd_hda_codec_read(codec, nid, 0,
589 				    AC_VERB_GET_GPIO_MASK, 0);
590 	direction = snd_hda_codec_read(codec, nid, 0,
591 				       AC_VERB_GET_GPIO_DIRECTION, 0);
592 	wake = snd_hda_codec_read(codec, nid, 0,
593 				  AC_VERB_GET_GPIO_WAKE_MASK, 0);
594 	unsol  = snd_hda_codec_read(codec, nid, 0,
595 				    AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK, 0);
596 	sticky = snd_hda_codec_read(codec, nid, 0,
597 				    AC_VERB_GET_GPIO_STICKY_MASK, 0);
598 	data = snd_hda_codec_read(codec, nid, 0,
599 				  AC_VERB_GET_GPIO_DATA, 0);
600 	for (i = 0; i < max; ++i)
601 		snd_iprintf(buffer,
602 			    "  IO[%d]: enable=%d, dir=%d, wake=%d, "
603 			    "sticky=%d, data=%d, unsol=%d\n", i,
604 			    (enable & (1<<i)) ? 1 : 0,
605 			    (direction & (1<<i)) ? 1 : 0,
606 			    (wake & (1<<i)) ? 1 : 0,
607 			    (sticky & (1<<i)) ? 1 : 0,
608 			    (data & (1<<i)) ? 1 : 0,
609 			    (unsol & (1<<i)) ? 1 : 0);
610 	/* FIXME: add GPO and GPI pin information */
611 	print_nid_array(buffer, codec, nid, &codec->mixers);
612 	print_nid_array(buffer, codec, nid, &codec->nids);
613 }
614 
615 static void print_device_list(struct snd_info_buffer *buffer,
616 			    struct hda_codec *codec, hda_nid_t nid)
617 {
618 	int i, curr = -1;
619 	u8 dev_list[AC_MAX_DEV_LIST_LEN];
620 	int devlist_len;
621 
622 	devlist_len = snd_hda_get_devices(codec, nid, dev_list,
623 					AC_MAX_DEV_LIST_LEN);
624 	snd_iprintf(buffer, "  Devices: %d\n", devlist_len);
625 	if (devlist_len <= 0)
626 		return;
627 
628 	curr = snd_hda_codec_read(codec, nid, 0,
629 				AC_VERB_GET_DEVICE_SEL, 0);
630 
631 	for (i = 0; i < devlist_len; i++) {
632 		if (i == curr)
633 			snd_iprintf(buffer, "    *");
634 		else
635 			snd_iprintf(buffer, "     ");
636 
637 		snd_iprintf(buffer,
638 			"Dev %02d: PD = %d, ELDV = %d, IA = %d\n", i,
639 			!!(dev_list[i] & AC_DE_PD),
640 			!!(dev_list[i] & AC_DE_ELDV),
641 			!!(dev_list[i] & AC_DE_IA));
642 	}
643 }
644 
645 static void print_codec_info(struct snd_info_entry *entry,
646 			     struct snd_info_buffer *buffer)
647 {
648 	struct hda_codec *codec = entry->private_data;
649 	hda_nid_t nid;
650 	int i, nodes;
651 
652 	snd_iprintf(buffer, "Codec: ");
653 	if (codec->vendor_name && codec->chip_name)
654 		snd_iprintf(buffer, "%s %s\n",
655 			    codec->vendor_name, codec->chip_name);
656 	else
657 		snd_iprintf(buffer, "Not Set\n");
658 	snd_iprintf(buffer, "Address: %d\n", codec->addr);
659 	if (codec->afg)
660 		snd_iprintf(buffer, "AFG Function Id: 0x%x (unsol %u)\n",
661 			codec->afg_function_id, codec->afg_unsol);
662 	if (codec->mfg)
663 		snd_iprintf(buffer, "MFG Function Id: 0x%x (unsol %u)\n",
664 			codec->mfg_function_id, codec->mfg_unsol);
665 	snd_iprintf(buffer, "Vendor Id: 0x%08x\n", codec->vendor_id);
666 	snd_iprintf(buffer, "Subsystem Id: 0x%08x\n", codec->subsystem_id);
667 	snd_iprintf(buffer, "Revision Id: 0x%x\n", codec->revision_id);
668 
669 	if (codec->mfg)
670 		snd_iprintf(buffer, "Modem Function Group: 0x%x\n", codec->mfg);
671 	else
672 		snd_iprintf(buffer, "No Modem Function Group found\n");
673 
674 	if (! codec->afg)
675 		return;
676 	snd_hda_power_up(codec);
677 	snd_iprintf(buffer, "Default PCM:\n");
678 	print_pcm_caps(buffer, codec, codec->afg);
679 	snd_iprintf(buffer, "Default Amp-In caps: ");
680 	print_amp_caps(buffer, codec, codec->afg, HDA_INPUT);
681 	snd_iprintf(buffer, "Default Amp-Out caps: ");
682 	print_amp_caps(buffer, codec, codec->afg, HDA_OUTPUT);
683 	snd_iprintf(buffer, "State of AFG node 0x%02x:\n", codec->afg);
684 	print_power_state(buffer, codec, codec->afg);
685 
686 	nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
687 	if (! nid || nodes < 0) {
688 		snd_iprintf(buffer, "Invalid AFG subtree\n");
689 		snd_hda_power_down(codec);
690 		return;
691 	}
692 
693 	print_gpio(buffer, codec, codec->afg);
694 	if (codec->proc_widget_hook)
695 		codec->proc_widget_hook(buffer, codec, codec->afg);
696 
697 	for (i = 0; i < nodes; i++, nid++) {
698 		unsigned int wid_caps =
699 			snd_hda_param_read(codec, nid,
700 					   AC_PAR_AUDIO_WIDGET_CAP);
701 		unsigned int wid_type = get_wcaps_type(wid_caps);
702 		hda_nid_t *conn = NULL;
703 		int conn_len = 0;
704 
705 		snd_iprintf(buffer, "Node 0x%02x [%s] wcaps 0x%x:", nid,
706 			    get_wid_type_name(wid_type), wid_caps);
707 		if (wid_caps & AC_WCAP_STEREO) {
708 			unsigned int chans = get_wcaps_channels(wid_caps);
709 			if (chans == 2)
710 				snd_iprintf(buffer, " Stereo");
711 			else
712 				snd_iprintf(buffer, " %d-Channels", chans);
713 		} else
714 			snd_iprintf(buffer, " Mono");
715 		if (wid_caps & AC_WCAP_DIGITAL)
716 			snd_iprintf(buffer, " Digital");
717 		if (wid_caps & AC_WCAP_IN_AMP)
718 			snd_iprintf(buffer, " Amp-In");
719 		if (wid_caps & AC_WCAP_OUT_AMP)
720 			snd_iprintf(buffer, " Amp-Out");
721 		if (wid_caps & AC_WCAP_STRIPE)
722 			snd_iprintf(buffer, " Stripe");
723 		if (wid_caps & AC_WCAP_LR_SWAP)
724 			snd_iprintf(buffer, " R/L");
725 		if (wid_caps & AC_WCAP_CP_CAPS)
726 			snd_iprintf(buffer, " CP");
727 		snd_iprintf(buffer, "\n");
728 
729 		print_nid_array(buffer, codec, nid, &codec->mixers);
730 		print_nid_array(buffer, codec, nid, &codec->nids);
731 		print_nid_pcms(buffer, codec, nid);
732 
733 		/* volume knob is a special widget that always have connection
734 		 * list
735 		 */
736 		if (wid_type == AC_WID_VOL_KNB)
737 			wid_caps |= AC_WCAP_CONN_LIST;
738 
739 		if (wid_caps & AC_WCAP_CONN_LIST) {
740 			conn_len = snd_hda_get_num_raw_conns(codec, nid);
741 			if (conn_len > 0) {
742 				conn = kmalloc(sizeof(hda_nid_t) * conn_len,
743 					       GFP_KERNEL);
744 				if (!conn)
745 					return;
746 				if (snd_hda_get_raw_connections(codec, nid, conn,
747 								conn_len) < 0)
748 					conn_len = 0;
749 			}
750 		}
751 
752 		if (wid_caps & AC_WCAP_IN_AMP) {
753 			snd_iprintf(buffer, "  Amp-In caps: ");
754 			print_amp_caps(buffer, codec, nid, HDA_INPUT);
755 			snd_iprintf(buffer, "  Amp-In vals: ");
756 			if (wid_type == AC_WID_PIN ||
757 			    (codec->single_adc_amp &&
758 			     wid_type == AC_WID_AUD_IN))
759 				print_amp_vals(buffer, codec, nid, HDA_INPUT,
760 					       wid_caps & AC_WCAP_STEREO,
761 					       1);
762 			else
763 				print_amp_vals(buffer, codec, nid, HDA_INPUT,
764 					       wid_caps & AC_WCAP_STEREO,
765 					       conn_len);
766 		}
767 		if (wid_caps & AC_WCAP_OUT_AMP) {
768 			snd_iprintf(buffer, "  Amp-Out caps: ");
769 			print_amp_caps(buffer, codec, nid, HDA_OUTPUT);
770 			snd_iprintf(buffer, "  Amp-Out vals: ");
771 			if (wid_type == AC_WID_PIN &&
772 			    codec->pin_amp_workaround)
773 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
774 					       wid_caps & AC_WCAP_STEREO,
775 					       conn_len);
776 			else
777 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
778 					       wid_caps & AC_WCAP_STEREO, 1);
779 		}
780 
781 		switch (wid_type) {
782 		case AC_WID_PIN: {
783 			int supports_vref;
784 			print_pin_caps(buffer, codec, nid, &supports_vref);
785 			print_pin_ctls(buffer, codec, nid, supports_vref);
786 			break;
787 		}
788 		case AC_WID_VOL_KNB:
789 			print_vol_knob(buffer, codec, nid);
790 			break;
791 		case AC_WID_AUD_OUT:
792 		case AC_WID_AUD_IN:
793 			print_audio_io(buffer, codec, nid, wid_type);
794 			if (wid_caps & AC_WCAP_DIGITAL)
795 				print_digital_conv(buffer, codec, nid);
796 			if (wid_caps & AC_WCAP_FORMAT_OVRD) {
797 				snd_iprintf(buffer, "  PCM:\n");
798 				print_pcm_caps(buffer, codec, nid);
799 			}
800 			break;
801 		}
802 
803 		if (wid_caps & AC_WCAP_UNSOL_CAP)
804 			print_unsol_cap(buffer, codec, nid);
805 
806 		if (wid_caps & AC_WCAP_POWER)
807 			print_power_state(buffer, codec, nid);
808 
809 		if (wid_caps & AC_WCAP_DELAY)
810 			snd_iprintf(buffer, "  Delay: %d samples\n",
811 				    (wid_caps & AC_WCAP_DELAY) >>
812 				    AC_WCAP_DELAY_SHIFT);
813 
814 		if (wid_type == AC_WID_PIN && codec->dp_mst)
815 			print_device_list(buffer, codec, nid);
816 
817 		if (wid_caps & AC_WCAP_CONN_LIST)
818 			print_conn_list(buffer, codec, nid, wid_type,
819 					conn, conn_len);
820 
821 		if (wid_caps & AC_WCAP_PROC_WID)
822 			print_proc_caps(buffer, codec, nid);
823 
824 		if (codec->proc_widget_hook)
825 			codec->proc_widget_hook(buffer, codec, nid);
826 
827 		kfree(conn);
828 	}
829 	snd_hda_power_down(codec);
830 }
831 
832 /*
833  * create a proc read
834  */
835 int snd_hda_codec_proc_new(struct hda_codec *codec)
836 {
837 	char name[32];
838 	struct snd_info_entry *entry;
839 	int err;
840 
841 	snprintf(name, sizeof(name), "codec#%d", codec->addr);
842 	err = snd_card_proc_new(codec->bus->card, name, &entry);
843 	if (err < 0)
844 		return err;
845 
846 	snd_info_set_text_ops(entry, codec, print_codec_info);
847 	return 0;
848 }
849 
850