xref: /openbmc/linux/sound/pci/hda/hda_proc.c (revision f7777dcc)
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 "hda_codec.h"
28 #include "hda_local.h"
29 
30 static char *bits_names(unsigned int bits, char *names[], int size)
31 {
32 	int i, n;
33 	static char buf[128];
34 
35 	for (i = 0, n = 0; i < size; i++) {
36 		if (bits & (1U<<i) && names[i])
37 			n += snprintf(buf + n, sizeof(buf) - n, " %s",
38 				      names[i]);
39 	}
40 	buf[n] = '\0';
41 
42 	return buf;
43 }
44 
45 static const char *get_wid_type_name(unsigned int wid_value)
46 {
47 	static char *names[16] = {
48 		[AC_WID_AUD_OUT] = "Audio Output",
49 		[AC_WID_AUD_IN] = "Audio Input",
50 		[AC_WID_AUD_MIX] = "Audio Mixer",
51 		[AC_WID_AUD_SEL] = "Audio Selector",
52 		[AC_WID_PIN] = "Pin Complex",
53 		[AC_WID_POWER] = "Power Widget",
54 		[AC_WID_VOL_KNB] = "Volume Knob Widget",
55 		[AC_WID_BEEP] = "Beep Generator Widget",
56 		[AC_WID_VENDOR] = "Vendor Defined Widget",
57 	};
58 	if (wid_value == -1)
59 		return "UNKNOWN Widget";
60 	wid_value &= 0xf;
61 	if (names[wid_value])
62 		return names[wid_value];
63 	else
64 		return "UNKNOWN Widget";
65 }
66 
67 static void print_nid_array(struct snd_info_buffer *buffer,
68 			    struct hda_codec *codec, hda_nid_t nid,
69 			    struct snd_array *array)
70 {
71 	int i;
72 	struct hda_nid_item *items = array->list, *item;
73 	struct snd_kcontrol *kctl;
74 	for (i = 0; i < array->used; i++) {
75 		item = &items[i];
76 		if (item->nid == nid) {
77 			kctl = item->kctl;
78 			snd_iprintf(buffer,
79 			  "  Control: name=\"%s\", index=%i, device=%i\n",
80 			  kctl->id.name, kctl->id.index + item->index,
81 			  kctl->id.device);
82 			if (item->flags & HDA_NID_ITEM_AMP)
83 				snd_iprintf(buffer,
84 				  "    ControlAmp: chs=%lu, dir=%s, "
85 				  "idx=%lu, ofs=%lu\n",
86 				  get_amp_channels(kctl),
87 				  get_amp_direction(kctl) ? "Out" : "In",
88 				  get_amp_index(kctl),
89 				  get_amp_offset(kctl));
90 		}
91 	}
92 }
93 
94 static void print_nid_pcms(struct snd_info_buffer *buffer,
95 			   struct hda_codec *codec, hda_nid_t nid)
96 {
97 	int pcm, type;
98 	struct hda_pcm *cpcm;
99 	for (pcm = 0; pcm < codec->num_pcms; pcm++) {
100 		cpcm = &codec->pcm_info[pcm];
101 		for (type = 0; type < 2; type++) {
102 			if (cpcm->stream[type].nid != nid || cpcm->pcm == NULL)
103 				continue;
104 			snd_iprintf(buffer, "  Device: name=\"%s\", "
105 				    "type=\"%s\", device=%i\n",
106 				    cpcm->name,
107 				    snd_hda_pcm_type_name[cpcm->pcm_type],
108 				    cpcm->pcm->device);
109 		}
110 	}
111 }
112 
113 static void print_amp_caps(struct snd_info_buffer *buffer,
114 			   struct hda_codec *codec, hda_nid_t nid, int dir)
115 {
116 	unsigned int caps;
117 	caps = snd_hda_param_read(codec, nid,
118 				  dir == HDA_OUTPUT ?
119 				    AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
120 	if (caps == -1 || caps == 0) {
121 		snd_iprintf(buffer, "N/A\n");
122 		return;
123 	}
124 	snd_iprintf(buffer, "ofs=0x%02x, nsteps=0x%02x, stepsize=0x%02x, "
125 		    "mute=%x\n",
126 		    caps & AC_AMPCAP_OFFSET,
127 		    (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT,
128 		    (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT,
129 		    (caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT);
130 }
131 
132 static void print_amp_vals(struct snd_info_buffer *buffer,
133 			   struct hda_codec *codec, hda_nid_t nid,
134 			   int dir, int stereo, int indices)
135 {
136 	unsigned int val;
137 	int i;
138 
139 	dir = dir == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
140 	for (i = 0; i < indices; i++) {
141 		snd_iprintf(buffer, " [");
142 		val = snd_hda_codec_read(codec, nid, 0,
143 					 AC_VERB_GET_AMP_GAIN_MUTE,
144 					 AC_AMP_GET_LEFT | dir | i);
145 		snd_iprintf(buffer, "0x%02x", val);
146 		if (stereo) {
147 			val = snd_hda_codec_read(codec, nid, 0,
148 						 AC_VERB_GET_AMP_GAIN_MUTE,
149 						 AC_AMP_GET_RIGHT | dir | i);
150 			snd_iprintf(buffer, " 0x%02x", val);
151 		}
152 		snd_iprintf(buffer, "]");
153 	}
154 	snd_iprintf(buffer, "\n");
155 }
156 
157 static void print_pcm_rates(struct snd_info_buffer *buffer, unsigned int pcm)
158 {
159 	static unsigned int rates[] = {
160 		8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
161 		96000, 176400, 192000, 384000
162 	};
163 	int i;
164 
165 	pcm &= AC_SUPPCM_RATES;
166 	snd_iprintf(buffer, "    rates [0x%x]:", pcm);
167 	for (i = 0; i < ARRAY_SIZE(rates); i++)
168 		if (pcm & (1 << i))
169 			snd_iprintf(buffer,  " %d", rates[i]);
170 	snd_iprintf(buffer, "\n");
171 }
172 
173 static void print_pcm_bits(struct snd_info_buffer *buffer, unsigned int pcm)
174 {
175 	char buf[SND_PRINT_BITS_ADVISED_BUFSIZE];
176 
177 	snd_iprintf(buffer, "    bits [0x%x]:", (pcm >> 16) & 0xff);
178 	snd_print_pcm_bits(pcm, buf, sizeof(buf));
179 	snd_iprintf(buffer, "%s\n", buf);
180 }
181 
182 static void print_pcm_formats(struct snd_info_buffer *buffer,
183 			      unsigned int streams)
184 {
185 	snd_iprintf(buffer, "    formats [0x%x]:", streams & 0xf);
186 	if (streams & AC_SUPFMT_PCM)
187 		snd_iprintf(buffer, " PCM");
188 	if (streams & AC_SUPFMT_FLOAT32)
189 		snd_iprintf(buffer, " FLOAT");
190 	if (streams & AC_SUPFMT_AC3)
191 		snd_iprintf(buffer, " AC3");
192 	snd_iprintf(buffer, "\n");
193 }
194 
195 static void print_pcm_caps(struct snd_info_buffer *buffer,
196 			   struct hda_codec *codec, hda_nid_t nid)
197 {
198 	unsigned int pcm = snd_hda_param_read(codec, nid, AC_PAR_PCM);
199 	unsigned int stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
200 	if (pcm == -1 || stream == -1) {
201 		snd_iprintf(buffer, "N/A\n");
202 		return;
203 	}
204 	print_pcm_rates(buffer, pcm);
205 	print_pcm_bits(buffer, pcm);
206 	print_pcm_formats(buffer, stream);
207 }
208 
209 static const char *get_jack_connection(u32 cfg)
210 {
211 	static char *names[16] = {
212 		"Unknown", "1/8", "1/4", "ATAPI",
213 		"RCA", "Optical","Digital", "Analog",
214 		"DIN", "XLR", "RJ11", "Comb",
215 		NULL, NULL, NULL, "Other"
216 	};
217 	cfg = (cfg & AC_DEFCFG_CONN_TYPE) >> AC_DEFCFG_CONN_TYPE_SHIFT;
218 	if (names[cfg])
219 		return names[cfg];
220 	else
221 		return "UNKNOWN";
222 }
223 
224 static const char *get_jack_color(u32 cfg)
225 {
226 	static char *names[16] = {
227 		"Unknown", "Black", "Grey", "Blue",
228 		"Green", "Red", "Orange", "Yellow",
229 		"Purple", "Pink", NULL, NULL,
230 		NULL, NULL, "White", "Other",
231 	};
232 	cfg = (cfg & AC_DEFCFG_COLOR) >> AC_DEFCFG_COLOR_SHIFT;
233 	if (names[cfg])
234 		return names[cfg];
235 	else
236 		return "UNKNOWN";
237 }
238 
239 static void print_pin_caps(struct snd_info_buffer *buffer,
240 			   struct hda_codec *codec, hda_nid_t nid,
241 			   int *supports_vref)
242 {
243 	static char *jack_conns[4] = { "Jack", "N/A", "Fixed", "Both" };
244 	unsigned int caps, val;
245 
246 	caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
247 	snd_iprintf(buffer, "  Pincap 0x%08x:", caps);
248 	if (caps & AC_PINCAP_IN)
249 		snd_iprintf(buffer, " IN");
250 	if (caps & AC_PINCAP_OUT)
251 		snd_iprintf(buffer, " OUT");
252 	if (caps & AC_PINCAP_HP_DRV)
253 		snd_iprintf(buffer, " HP");
254 	if (caps & AC_PINCAP_EAPD)
255 		snd_iprintf(buffer, " EAPD");
256 	if (caps & AC_PINCAP_PRES_DETECT)
257 		snd_iprintf(buffer, " Detect");
258 	if (caps & AC_PINCAP_BALANCE)
259 		snd_iprintf(buffer, " Balanced");
260 	if (caps & AC_PINCAP_HDMI) {
261 		/* Realtek uses this bit as a different meaning */
262 		if ((codec->vendor_id >> 16) == 0x10ec)
263 			snd_iprintf(buffer, " R/L");
264 		else {
265 			if (caps & AC_PINCAP_HBR)
266 				snd_iprintf(buffer, " HBR");
267 			snd_iprintf(buffer, " HDMI");
268 		}
269 	}
270 	if (caps & AC_PINCAP_DP)
271 		snd_iprintf(buffer, " DP");
272 	if (caps & AC_PINCAP_TRIG_REQ)
273 		snd_iprintf(buffer, " Trigger");
274 	if (caps & AC_PINCAP_IMP_SENSE)
275 		snd_iprintf(buffer, " ImpSense");
276 	snd_iprintf(buffer, "\n");
277 	if (caps & AC_PINCAP_VREF) {
278 		unsigned int vref =
279 			(caps & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
280 		snd_iprintf(buffer, "    Vref caps:");
281 		if (vref & AC_PINCAP_VREF_HIZ)
282 			snd_iprintf(buffer, " HIZ");
283 		if (vref & AC_PINCAP_VREF_50)
284 			snd_iprintf(buffer, " 50");
285 		if (vref & AC_PINCAP_VREF_GRD)
286 			snd_iprintf(buffer, " GRD");
287 		if (vref & AC_PINCAP_VREF_80)
288 			snd_iprintf(buffer, " 80");
289 		if (vref & AC_PINCAP_VREF_100)
290 			snd_iprintf(buffer, " 100");
291 		snd_iprintf(buffer, "\n");
292 		*supports_vref = 1;
293 	} else
294 		*supports_vref = 0;
295 	if (caps & AC_PINCAP_EAPD) {
296 		val = snd_hda_codec_read(codec, nid, 0,
297 					 AC_VERB_GET_EAPD_BTLENABLE, 0);
298 		snd_iprintf(buffer, "  EAPD 0x%x:", val);
299 		if (val & AC_EAPDBTL_BALANCED)
300 			snd_iprintf(buffer, " BALANCED");
301 		if (val & AC_EAPDBTL_EAPD)
302 			snd_iprintf(buffer, " EAPD");
303 		if (val & AC_EAPDBTL_LR_SWAP)
304 			snd_iprintf(buffer, " R/L");
305 		snd_iprintf(buffer, "\n");
306 	}
307 	caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
308 	snd_iprintf(buffer, "  Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
309 		    jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
310 		    snd_hda_get_jack_type(caps),
311 		    snd_hda_get_jack_connectivity(caps),
312 		    snd_hda_get_jack_location(caps));
313 	snd_iprintf(buffer, "    Conn = %s, Color = %s\n",
314 		    get_jack_connection(caps),
315 		    get_jack_color(caps));
316 	/* Default association and sequence values refer to default grouping
317 	 * of pin complexes and their sequence within the group. This is used
318 	 * for priority and resource allocation.
319 	 */
320 	snd_iprintf(buffer, "    DefAssociation = 0x%x, Sequence = 0x%x\n",
321 		    (caps & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT,
322 		    caps & AC_DEFCFG_SEQUENCE);
323 	if (((caps & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT) &
324 	    AC_DEFCFG_MISC_NO_PRESENCE) {
325 		/* Miscellaneous bit indicates external hardware does not
326 		 * support presence detection even if the pin complex
327 		 * indicates it is supported.
328 		 */
329 		snd_iprintf(buffer, "    Misc = NO_PRESENCE\n");
330 	}
331 }
332 
333 static void print_pin_ctls(struct snd_info_buffer *buffer,
334 			   struct hda_codec *codec, hda_nid_t nid,
335 			   int supports_vref)
336 {
337 	unsigned int pinctls;
338 
339 	pinctls = snd_hda_codec_read(codec, nid, 0,
340 				     AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
341 	snd_iprintf(buffer, "  Pin-ctls: 0x%02x:", pinctls);
342 	if (pinctls & AC_PINCTL_IN_EN)
343 		snd_iprintf(buffer, " IN");
344 	if (pinctls & AC_PINCTL_OUT_EN)
345 		snd_iprintf(buffer, " OUT");
346 	if (pinctls & AC_PINCTL_HP_EN)
347 		snd_iprintf(buffer, " HP");
348 	if (supports_vref) {
349 		int vref = pinctls & AC_PINCTL_VREFEN;
350 		switch (vref) {
351 		case AC_PINCTL_VREF_HIZ:
352 			snd_iprintf(buffer, " VREF_HIZ");
353 			break;
354 		case AC_PINCTL_VREF_50:
355 			snd_iprintf(buffer, " VREF_50");
356 			break;
357 		case AC_PINCTL_VREF_GRD:
358 			snd_iprintf(buffer, " VREF_GRD");
359 			break;
360 		case AC_PINCTL_VREF_80:
361 			snd_iprintf(buffer, " VREF_80");
362 			break;
363 		case AC_PINCTL_VREF_100:
364 			snd_iprintf(buffer, " VREF_100");
365 			break;
366 		}
367 	}
368 	snd_iprintf(buffer, "\n");
369 }
370 
371 static void print_vol_knob(struct snd_info_buffer *buffer,
372 			   struct hda_codec *codec, hda_nid_t nid)
373 {
374 	unsigned int cap = snd_hda_param_read(codec, nid,
375 					      AC_PAR_VOL_KNB_CAP);
376 	snd_iprintf(buffer, "  Volume-Knob: delta=%d, steps=%d, ",
377 		    (cap >> 7) & 1, cap & 0x7f);
378 	cap = snd_hda_codec_read(codec, nid, 0,
379 				 AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
380 	snd_iprintf(buffer, "direct=%d, val=%d\n",
381 		    (cap >> 7) & 1, cap & 0x7f);
382 }
383 
384 static void print_audio_io(struct snd_info_buffer *buffer,
385 			   struct hda_codec *codec, hda_nid_t nid,
386 			   unsigned int wid_type)
387 {
388 	int conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
389 	snd_iprintf(buffer,
390 		    "  Converter: stream=%d, channel=%d\n",
391 		    (conv & AC_CONV_STREAM) >> AC_CONV_STREAM_SHIFT,
392 		    conv & AC_CONV_CHANNEL);
393 
394 	if (wid_type == AC_WID_AUD_IN && (conv & AC_CONV_CHANNEL) == 0) {
395 		int sdi = snd_hda_codec_read(codec, nid, 0,
396 					     AC_VERB_GET_SDI_SELECT, 0);
397 		snd_iprintf(buffer, "  SDI-Select: %d\n",
398 			    sdi & AC_SDI_SELECT);
399 	}
400 }
401 
402 static void print_digital_conv(struct snd_info_buffer *buffer,
403 			       struct hda_codec *codec, hda_nid_t nid)
404 {
405 	unsigned int digi1 = snd_hda_codec_read(codec, nid, 0,
406 						AC_VERB_GET_DIGI_CONVERT_1, 0);
407 	unsigned char digi2 = digi1 >> 8;
408 	unsigned char digi3 = digi1 >> 16;
409 
410 	snd_iprintf(buffer, "  Digital:");
411 	if (digi1 & AC_DIG1_ENABLE)
412 		snd_iprintf(buffer, " Enabled");
413 	if (digi1 & AC_DIG1_V)
414 		snd_iprintf(buffer, " Validity");
415 	if (digi1 & AC_DIG1_VCFG)
416 		snd_iprintf(buffer, " ValidityCfg");
417 	if (digi1 & AC_DIG1_EMPHASIS)
418 		snd_iprintf(buffer, " Preemphasis");
419 	if (digi1 & AC_DIG1_COPYRIGHT)
420 		snd_iprintf(buffer, " Non-Copyright");
421 	if (digi1 & AC_DIG1_NONAUDIO)
422 		snd_iprintf(buffer, " Non-Audio");
423 	if (digi1 & AC_DIG1_PROFESSIONAL)
424 		snd_iprintf(buffer, " Pro");
425 	if (digi1 & AC_DIG1_LEVEL)
426 		snd_iprintf(buffer, " GenLevel");
427 	if (digi3 & AC_DIG3_KAE)
428 		snd_iprintf(buffer, " KAE");
429 	snd_iprintf(buffer, "\n");
430 	snd_iprintf(buffer, "  Digital category: 0x%x\n",
431 		    digi2 & AC_DIG2_CC);
432 	snd_iprintf(buffer, "  IEC Coding Type: 0x%x\n",
433 			digi3 & AC_DIG3_ICT);
434 }
435 
436 static const char *get_pwr_state(u32 state)
437 {
438 	static const char * const buf[] = {
439 		"D0", "D1", "D2", "D3", "D3cold"
440 	};
441 	if (state < ARRAY_SIZE(buf))
442 		return buf[state];
443 	return "UNKNOWN";
444 }
445 
446 static void print_power_state(struct snd_info_buffer *buffer,
447 			      struct hda_codec *codec, hda_nid_t nid)
448 {
449 	static char *names[] = {
450 		[ilog2(AC_PWRST_D0SUP)]		= "D0",
451 		[ilog2(AC_PWRST_D1SUP)]		= "D1",
452 		[ilog2(AC_PWRST_D2SUP)]		= "D2",
453 		[ilog2(AC_PWRST_D3SUP)]		= "D3",
454 		[ilog2(AC_PWRST_D3COLDSUP)]	= "D3cold",
455 		[ilog2(AC_PWRST_S3D3COLDSUP)]	= "S3D3cold",
456 		[ilog2(AC_PWRST_CLKSTOP)]	= "CLKSTOP",
457 		[ilog2(AC_PWRST_EPSS)]		= "EPSS",
458 	};
459 
460 	int sup = snd_hda_param_read(codec, nid, AC_PAR_POWER_STATE);
461 	int pwr = snd_hda_codec_read(codec, nid, 0,
462 				     AC_VERB_GET_POWER_STATE, 0);
463 	if (sup != -1)
464 		snd_iprintf(buffer, "  Power states: %s\n",
465 			    bits_names(sup, names, ARRAY_SIZE(names)));
466 
467 	snd_iprintf(buffer, "  Power: setting=%s, actual=%s",
468 		    get_pwr_state(pwr & AC_PWRST_SETTING),
469 		    get_pwr_state((pwr & AC_PWRST_ACTUAL) >>
470 				  AC_PWRST_ACTUAL_SHIFT));
471 	if (pwr & AC_PWRST_ERROR)
472 		snd_iprintf(buffer, ", Error");
473 	if (pwr & AC_PWRST_CLK_STOP_OK)
474 		snd_iprintf(buffer, ", Clock-stop-OK");
475 	if (pwr & AC_PWRST_SETTING_RESET)
476 		snd_iprintf(buffer, ", Setting-reset");
477 	snd_iprintf(buffer, "\n");
478 }
479 
480 static void print_unsol_cap(struct snd_info_buffer *buffer,
481 			      struct hda_codec *codec, hda_nid_t nid)
482 {
483 	int unsol = snd_hda_codec_read(codec, nid, 0,
484 				       AC_VERB_GET_UNSOLICITED_RESPONSE, 0);
485 	snd_iprintf(buffer,
486 		    "  Unsolicited: tag=%02x, enabled=%d\n",
487 		    unsol & AC_UNSOL_TAG,
488 		    (unsol & AC_UNSOL_ENABLED) ? 1 : 0);
489 }
490 
491 static void print_proc_caps(struct snd_info_buffer *buffer,
492 			    struct hda_codec *codec, hda_nid_t nid)
493 {
494 	unsigned int proc_caps = snd_hda_param_read(codec, nid,
495 						    AC_PAR_PROC_CAP);
496 	snd_iprintf(buffer, "  Processing caps: benign=%d, ncoeff=%d\n",
497 		    proc_caps & AC_PCAP_BENIGN,
498 		    (proc_caps & AC_PCAP_NUM_COEF) >> AC_PCAP_NUM_COEF_SHIFT);
499 }
500 
501 static void print_conn_list(struct snd_info_buffer *buffer,
502 			    struct hda_codec *codec, hda_nid_t nid,
503 			    unsigned int wid_type, hda_nid_t *conn,
504 			    int conn_len)
505 {
506 	int c, curr = -1;
507 	const hda_nid_t *list;
508 	int cache_len;
509 
510 	if (conn_len > 1 &&
511 	    wid_type != AC_WID_AUD_MIX &&
512 	    wid_type != AC_WID_VOL_KNB &&
513 	    wid_type != AC_WID_POWER)
514 		curr = snd_hda_codec_read(codec, nid, 0,
515 					  AC_VERB_GET_CONNECT_SEL, 0);
516 	snd_iprintf(buffer, "  Connection: %d\n", conn_len);
517 	if (conn_len > 0) {
518 		snd_iprintf(buffer, "    ");
519 		for (c = 0; c < conn_len; c++) {
520 			snd_iprintf(buffer, " 0x%02x", conn[c]);
521 			if (c == curr)
522 				snd_iprintf(buffer, "*");
523 		}
524 		snd_iprintf(buffer, "\n");
525 	}
526 
527 	/* Get Cache connections info */
528 	cache_len = snd_hda_get_conn_list(codec, nid, &list);
529 	if (cache_len != conn_len
530 			|| memcmp(list, conn, conn_len)) {
531 		snd_iprintf(buffer, "  In-driver Connection: %d\n", cache_len);
532 		if (cache_len > 0) {
533 			snd_iprintf(buffer, "    ");
534 			for (c = 0; c < cache_len; c++)
535 				snd_iprintf(buffer, " 0x%02x", list[c]);
536 			snd_iprintf(buffer, "\n");
537 		}
538 	}
539 }
540 
541 static void print_gpio(struct snd_info_buffer *buffer,
542 		       struct hda_codec *codec, hda_nid_t nid)
543 {
544 	unsigned int gpio =
545 		snd_hda_param_read(codec, codec->afg, AC_PAR_GPIO_CAP);
546 	unsigned int enable, direction, wake, unsol, sticky, data;
547 	int i, max;
548 	snd_iprintf(buffer, "GPIO: io=%d, o=%d, i=%d, "
549 		    "unsolicited=%d, wake=%d\n",
550 		    gpio & AC_GPIO_IO_COUNT,
551 		    (gpio & AC_GPIO_O_COUNT) >> AC_GPIO_O_COUNT_SHIFT,
552 		    (gpio & AC_GPIO_I_COUNT) >> AC_GPIO_I_COUNT_SHIFT,
553 		    (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
554 		    (gpio & AC_GPIO_WAKE) ? 1 : 0);
555 	max = gpio & AC_GPIO_IO_COUNT;
556 	if (!max || max > 8)
557 		return;
558 	enable = snd_hda_codec_read(codec, nid, 0,
559 				    AC_VERB_GET_GPIO_MASK, 0);
560 	direction = snd_hda_codec_read(codec, nid, 0,
561 				       AC_VERB_GET_GPIO_DIRECTION, 0);
562 	wake = snd_hda_codec_read(codec, nid, 0,
563 				  AC_VERB_GET_GPIO_WAKE_MASK, 0);
564 	unsol  = snd_hda_codec_read(codec, nid, 0,
565 				    AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK, 0);
566 	sticky = snd_hda_codec_read(codec, nid, 0,
567 				    AC_VERB_GET_GPIO_STICKY_MASK, 0);
568 	data = snd_hda_codec_read(codec, nid, 0,
569 				  AC_VERB_GET_GPIO_DATA, 0);
570 	for (i = 0; i < max; ++i)
571 		snd_iprintf(buffer,
572 			    "  IO[%d]: enable=%d, dir=%d, wake=%d, "
573 			    "sticky=%d, data=%d, unsol=%d\n", i,
574 			    (enable & (1<<i)) ? 1 : 0,
575 			    (direction & (1<<i)) ? 1 : 0,
576 			    (wake & (1<<i)) ? 1 : 0,
577 			    (sticky & (1<<i)) ? 1 : 0,
578 			    (data & (1<<i)) ? 1 : 0,
579 			    (unsol & (1<<i)) ? 1 : 0);
580 	/* FIXME: add GPO and GPI pin information */
581 	print_nid_array(buffer, codec, nid, &codec->mixers);
582 	print_nid_array(buffer, codec, nid, &codec->nids);
583 }
584 
585 static void print_device_list(struct snd_info_buffer *buffer,
586 			    struct hda_codec *codec, hda_nid_t nid)
587 {
588 	int i, curr = -1;
589 	u8 dev_list[AC_MAX_DEV_LIST_LEN];
590 	int devlist_len;
591 
592 	devlist_len = snd_hda_get_devices(codec, nid, dev_list,
593 					AC_MAX_DEV_LIST_LEN);
594 	snd_iprintf(buffer, "  Devices: %d\n", devlist_len);
595 	if (devlist_len <= 0)
596 		return;
597 
598 	curr = snd_hda_codec_read(codec, nid, 0,
599 				AC_VERB_GET_DEVICE_SEL, 0);
600 
601 	for (i = 0; i < devlist_len; i++) {
602 		if (i == curr)
603 			snd_iprintf(buffer, "    *");
604 		else
605 			snd_iprintf(buffer, "     ");
606 
607 		snd_iprintf(buffer,
608 			"Dev %02d: PD = %d, ELDV = %d, IA = %d\n", i,
609 			!!(dev_list[i] & AC_DE_PD),
610 			!!(dev_list[i] & AC_DE_ELDV),
611 			!!(dev_list[i] & AC_DE_IA));
612 	}
613 }
614 
615 static void print_codec_info(struct snd_info_entry *entry,
616 			     struct snd_info_buffer *buffer)
617 {
618 	struct hda_codec *codec = entry->private_data;
619 	hda_nid_t nid;
620 	int i, nodes;
621 
622 	snd_iprintf(buffer, "Codec: ");
623 	if (codec->vendor_name && codec->chip_name)
624 		snd_iprintf(buffer, "%s %s\n",
625 			    codec->vendor_name, codec->chip_name);
626 	else
627 		snd_iprintf(buffer, "Not Set\n");
628 	snd_iprintf(buffer, "Address: %d\n", codec->addr);
629 	if (codec->afg)
630 		snd_iprintf(buffer, "AFG Function Id: 0x%x (unsol %u)\n",
631 			codec->afg_function_id, codec->afg_unsol);
632 	if (codec->mfg)
633 		snd_iprintf(buffer, "MFG Function Id: 0x%x (unsol %u)\n",
634 			codec->mfg_function_id, codec->mfg_unsol);
635 	snd_iprintf(buffer, "Vendor Id: 0x%08x\n", codec->vendor_id);
636 	snd_iprintf(buffer, "Subsystem Id: 0x%08x\n", codec->subsystem_id);
637 	snd_iprintf(buffer, "Revision Id: 0x%x\n", codec->revision_id);
638 
639 	if (codec->mfg)
640 		snd_iprintf(buffer, "Modem Function Group: 0x%x\n", codec->mfg);
641 	else
642 		snd_iprintf(buffer, "No Modem Function Group found\n");
643 
644 	if (! codec->afg)
645 		return;
646 	snd_hda_power_up(codec);
647 	snd_iprintf(buffer, "Default PCM:\n");
648 	print_pcm_caps(buffer, codec, codec->afg);
649 	snd_iprintf(buffer, "Default Amp-In caps: ");
650 	print_amp_caps(buffer, codec, codec->afg, HDA_INPUT);
651 	snd_iprintf(buffer, "Default Amp-Out caps: ");
652 	print_amp_caps(buffer, codec, codec->afg, HDA_OUTPUT);
653 	snd_iprintf(buffer, "State of AFG node 0x%02x:\n", codec->afg);
654 	print_power_state(buffer, codec, codec->afg);
655 
656 	nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
657 	if (! nid || nodes < 0) {
658 		snd_iprintf(buffer, "Invalid AFG subtree\n");
659 		snd_hda_power_down(codec);
660 		return;
661 	}
662 
663 	print_gpio(buffer, codec, codec->afg);
664 	if (codec->proc_widget_hook)
665 		codec->proc_widget_hook(buffer, codec, codec->afg);
666 
667 	for (i = 0; i < nodes; i++, nid++) {
668 		unsigned int wid_caps =
669 			snd_hda_param_read(codec, nid,
670 					   AC_PAR_AUDIO_WIDGET_CAP);
671 		unsigned int wid_type = get_wcaps_type(wid_caps);
672 		hda_nid_t *conn = NULL;
673 		int conn_len = 0;
674 
675 		snd_iprintf(buffer, "Node 0x%02x [%s] wcaps 0x%x:", nid,
676 			    get_wid_type_name(wid_type), wid_caps);
677 		if (wid_caps & AC_WCAP_STEREO) {
678 			unsigned int chans = get_wcaps_channels(wid_caps);
679 			if (chans == 2)
680 				snd_iprintf(buffer, " Stereo");
681 			else
682 				snd_iprintf(buffer, " %d-Channels", chans);
683 		} else
684 			snd_iprintf(buffer, " Mono");
685 		if (wid_caps & AC_WCAP_DIGITAL)
686 			snd_iprintf(buffer, " Digital");
687 		if (wid_caps & AC_WCAP_IN_AMP)
688 			snd_iprintf(buffer, " Amp-In");
689 		if (wid_caps & AC_WCAP_OUT_AMP)
690 			snd_iprintf(buffer, " Amp-Out");
691 		if (wid_caps & AC_WCAP_STRIPE)
692 			snd_iprintf(buffer, " Stripe");
693 		if (wid_caps & AC_WCAP_LR_SWAP)
694 			snd_iprintf(buffer, " R/L");
695 		if (wid_caps & AC_WCAP_CP_CAPS)
696 			snd_iprintf(buffer, " CP");
697 		snd_iprintf(buffer, "\n");
698 
699 		print_nid_array(buffer, codec, nid, &codec->mixers);
700 		print_nid_array(buffer, codec, nid, &codec->nids);
701 		print_nid_pcms(buffer, codec, nid);
702 
703 		/* volume knob is a special widget that always have connection
704 		 * list
705 		 */
706 		if (wid_type == AC_WID_VOL_KNB)
707 			wid_caps |= AC_WCAP_CONN_LIST;
708 
709 		if (wid_caps & AC_WCAP_CONN_LIST) {
710 			conn_len = snd_hda_get_num_raw_conns(codec, nid);
711 			if (conn_len > 0) {
712 				conn = kmalloc(sizeof(hda_nid_t) * conn_len,
713 					       GFP_KERNEL);
714 				if (!conn)
715 					return;
716 				if (snd_hda_get_raw_connections(codec, nid, conn,
717 								conn_len) < 0)
718 					conn_len = 0;
719 			}
720 		}
721 
722 		if (wid_caps & AC_WCAP_IN_AMP) {
723 			snd_iprintf(buffer, "  Amp-In caps: ");
724 			print_amp_caps(buffer, codec, nid, HDA_INPUT);
725 			snd_iprintf(buffer, "  Amp-In vals: ");
726 			if (wid_type == AC_WID_PIN ||
727 			    (codec->single_adc_amp &&
728 			     wid_type == AC_WID_AUD_IN))
729 				print_amp_vals(buffer, codec, nid, HDA_INPUT,
730 					       wid_caps & AC_WCAP_STEREO,
731 					       1);
732 			else
733 				print_amp_vals(buffer, codec, nid, HDA_INPUT,
734 					       wid_caps & AC_WCAP_STEREO,
735 					       conn_len);
736 		}
737 		if (wid_caps & AC_WCAP_OUT_AMP) {
738 			snd_iprintf(buffer, "  Amp-Out caps: ");
739 			print_amp_caps(buffer, codec, nid, HDA_OUTPUT);
740 			snd_iprintf(buffer, "  Amp-Out vals: ");
741 			if (wid_type == AC_WID_PIN &&
742 			    codec->pin_amp_workaround)
743 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
744 					       wid_caps & AC_WCAP_STEREO,
745 					       conn_len);
746 			else
747 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
748 					       wid_caps & AC_WCAP_STEREO, 1);
749 		}
750 
751 		switch (wid_type) {
752 		case AC_WID_PIN: {
753 			int supports_vref;
754 			print_pin_caps(buffer, codec, nid, &supports_vref);
755 			print_pin_ctls(buffer, codec, nid, supports_vref);
756 			break;
757 		}
758 		case AC_WID_VOL_KNB:
759 			print_vol_knob(buffer, codec, nid);
760 			break;
761 		case AC_WID_AUD_OUT:
762 		case AC_WID_AUD_IN:
763 			print_audio_io(buffer, codec, nid, wid_type);
764 			if (wid_caps & AC_WCAP_DIGITAL)
765 				print_digital_conv(buffer, codec, nid);
766 			if (wid_caps & AC_WCAP_FORMAT_OVRD) {
767 				snd_iprintf(buffer, "  PCM:\n");
768 				print_pcm_caps(buffer, codec, nid);
769 			}
770 			break;
771 		}
772 
773 		if (wid_caps & AC_WCAP_UNSOL_CAP)
774 			print_unsol_cap(buffer, codec, nid);
775 
776 		if (wid_caps & AC_WCAP_POWER)
777 			print_power_state(buffer, codec, nid);
778 
779 		if (wid_caps & AC_WCAP_DELAY)
780 			snd_iprintf(buffer, "  Delay: %d samples\n",
781 				    (wid_caps & AC_WCAP_DELAY) >>
782 				    AC_WCAP_DELAY_SHIFT);
783 
784 		if (wid_type == AC_WID_PIN && codec->dp_mst)
785 			print_device_list(buffer, codec, nid);
786 
787 		if (wid_caps & AC_WCAP_CONN_LIST)
788 			print_conn_list(buffer, codec, nid, wid_type,
789 					conn, conn_len);
790 
791 		if (wid_caps & AC_WCAP_PROC_WID)
792 			print_proc_caps(buffer, codec, nid);
793 
794 		if (codec->proc_widget_hook)
795 			codec->proc_widget_hook(buffer, codec, nid);
796 
797 		kfree(conn);
798 	}
799 	snd_hda_power_down(codec);
800 }
801 
802 /*
803  * create a proc read
804  */
805 int snd_hda_codec_proc_new(struct hda_codec *codec)
806 {
807 	char name[32];
808 	struct snd_info_entry *entry;
809 	int err;
810 
811 	snprintf(name, sizeof(name), "codec#%d", codec->addr);
812 	err = snd_card_proc_new(codec->bus->card, name, &entry);
813 	if (err < 0)
814 		return err;
815 
816 	snd_info_set_text_ops(entry, codec, print_codec_info);
817 	return 0;
818 }
819 
820