xref: /openbmc/linux/sound/pci/hda/hda_proc.c (revision 9d749629)
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 <sound/core.h>
26 #include "hda_codec.h"
27 #include "hda_local.h"
28 
29 static char *bits_names(unsigned int bits, char *names[], int size)
30 {
31 	int i, n;
32 	static char buf[128];
33 
34 	for (i = 0, n = 0; i < size; i++) {
35 		if (bits & (1U<<i) && names[i])
36 			n += snprintf(buf + n, sizeof(buf) - n, " %s",
37 				      names[i]);
38 	}
39 	buf[n] = '\0';
40 
41 	return buf;
42 }
43 
44 static const char *get_wid_type_name(unsigned int wid_value)
45 {
46 	static char *names[16] = {
47 		[AC_WID_AUD_OUT] = "Audio Output",
48 		[AC_WID_AUD_IN] = "Audio Input",
49 		[AC_WID_AUD_MIX] = "Audio Mixer",
50 		[AC_WID_AUD_SEL] = "Audio Selector",
51 		[AC_WID_PIN] = "Pin Complex",
52 		[AC_WID_POWER] = "Power Widget",
53 		[AC_WID_VOL_KNB] = "Volume Knob Widget",
54 		[AC_WID_BEEP] = "Beep Generator Widget",
55 		[AC_WID_VENDOR] = "Vendor Defined Widget",
56 	};
57 	if (wid_value == -1)
58 		return "UNKNOWN Widget";
59 	wid_value &= 0xf;
60 	if (names[wid_value])
61 		return names[wid_value];
62 	else
63 		return "UNKNOWN Widget";
64 }
65 
66 static void print_nid_array(struct snd_info_buffer *buffer,
67 			    struct hda_codec *codec, hda_nid_t nid,
68 			    struct snd_array *array)
69 {
70 	int i;
71 	struct hda_nid_item *items = array->list, *item;
72 	struct snd_kcontrol *kctl;
73 	for (i = 0; i < array->used; i++) {
74 		item = &items[i];
75 		if (item->nid == nid) {
76 			kctl = item->kctl;
77 			snd_iprintf(buffer,
78 			  "  Control: name=\"%s\", index=%i, device=%i\n",
79 			  kctl->id.name, kctl->id.index + item->index,
80 			  kctl->id.device);
81 			if (item->flags & HDA_NID_ITEM_AMP)
82 				snd_iprintf(buffer,
83 				  "    ControlAmp: chs=%lu, dir=%s, "
84 				  "idx=%lu, ofs=%lu\n",
85 				  get_amp_channels(kctl),
86 				  get_amp_direction(kctl) ? "Out" : "In",
87 				  get_amp_index(kctl),
88 				  get_amp_offset(kctl));
89 		}
90 	}
91 }
92 
93 static void print_nid_pcms(struct snd_info_buffer *buffer,
94 			   struct hda_codec *codec, hda_nid_t nid)
95 {
96 	int pcm, type;
97 	struct hda_pcm *cpcm;
98 	for (pcm = 0; pcm < codec->num_pcms; pcm++) {
99 		cpcm = &codec->pcm_info[pcm];
100 		for (type = 0; type < 2; type++) {
101 			if (cpcm->stream[type].nid != nid || cpcm->pcm == NULL)
102 				continue;
103 			snd_iprintf(buffer, "  Device: name=\"%s\", "
104 				    "type=\"%s\", device=%i\n",
105 				    cpcm->name,
106 				    snd_hda_pcm_type_name[cpcm->pcm_type],
107 				    cpcm->pcm->device);
108 		}
109 	}
110 }
111 
112 static void print_amp_caps(struct snd_info_buffer *buffer,
113 			   struct hda_codec *codec, hda_nid_t nid, int dir)
114 {
115 	unsigned int caps;
116 	caps = snd_hda_param_read(codec, nid,
117 				  dir == HDA_OUTPUT ?
118 				    AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
119 	if (caps == -1 || caps == 0) {
120 		snd_iprintf(buffer, "N/A\n");
121 		return;
122 	}
123 	snd_iprintf(buffer, "ofs=0x%02x, nsteps=0x%02x, stepsize=0x%02x, "
124 		    "mute=%x\n",
125 		    caps & AC_AMPCAP_OFFSET,
126 		    (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT,
127 		    (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT,
128 		    (caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT);
129 }
130 
131 static void print_amp_vals(struct snd_info_buffer *buffer,
132 			   struct hda_codec *codec, hda_nid_t nid,
133 			   int dir, int stereo, int indices)
134 {
135 	unsigned int val;
136 	int i;
137 
138 	dir = dir == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
139 	for (i = 0; i < indices; i++) {
140 		snd_iprintf(buffer, " [");
141 		if (stereo) {
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 		}
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, "\n");
153 }
154 
155 static void print_pcm_rates(struct snd_info_buffer *buffer, unsigned int pcm)
156 {
157 	static unsigned int rates[] = {
158 		8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
159 		96000, 176400, 192000, 384000
160 	};
161 	int i;
162 
163 	pcm &= AC_SUPPCM_RATES;
164 	snd_iprintf(buffer, "    rates [0x%x]:", pcm);
165 	for (i = 0; i < ARRAY_SIZE(rates); i++)
166 		if (pcm & (1 << i))
167 			snd_iprintf(buffer,  " %d", rates[i]);
168 	snd_iprintf(buffer, "\n");
169 }
170 
171 static void print_pcm_bits(struct snd_info_buffer *buffer, unsigned int pcm)
172 {
173 	char buf[SND_PRINT_BITS_ADVISED_BUFSIZE];
174 
175 	snd_iprintf(buffer, "    bits [0x%x]:", (pcm >> 16) & 0xff);
176 	snd_print_pcm_bits(pcm, buf, sizeof(buf));
177 	snd_iprintf(buffer, "%s\n", buf);
178 }
179 
180 static void print_pcm_formats(struct snd_info_buffer *buffer,
181 			      unsigned int streams)
182 {
183 	snd_iprintf(buffer, "    formats [0x%x]:", streams & 0xf);
184 	if (streams & AC_SUPFMT_PCM)
185 		snd_iprintf(buffer, " PCM");
186 	if (streams & AC_SUPFMT_FLOAT32)
187 		snd_iprintf(buffer, " FLOAT");
188 	if (streams & AC_SUPFMT_AC3)
189 		snd_iprintf(buffer, " AC3");
190 	snd_iprintf(buffer, "\n");
191 }
192 
193 static void print_pcm_caps(struct snd_info_buffer *buffer,
194 			   struct hda_codec *codec, hda_nid_t nid)
195 {
196 	unsigned int pcm = snd_hda_param_read(codec, nid, AC_PAR_PCM);
197 	unsigned int stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
198 	if (pcm == -1 || stream == -1) {
199 		snd_iprintf(buffer, "N/A\n");
200 		return;
201 	}
202 	print_pcm_rates(buffer, pcm);
203 	print_pcm_bits(buffer, pcm);
204 	print_pcm_formats(buffer, stream);
205 }
206 
207 static const char *get_jack_connection(u32 cfg)
208 {
209 	static char *names[16] = {
210 		"Unknown", "1/8", "1/4", "ATAPI",
211 		"RCA", "Optical","Digital", "Analog",
212 		"DIN", "XLR", "RJ11", "Comb",
213 		NULL, NULL, NULL, "Other"
214 	};
215 	cfg = (cfg & AC_DEFCFG_CONN_TYPE) >> AC_DEFCFG_CONN_TYPE_SHIFT;
216 	if (names[cfg])
217 		return names[cfg];
218 	else
219 		return "UNKNOWN";
220 }
221 
222 static const char *get_jack_color(u32 cfg)
223 {
224 	static char *names[16] = {
225 		"Unknown", "Black", "Grey", "Blue",
226 		"Green", "Red", "Orange", "Yellow",
227 		"Purple", "Pink", NULL, NULL,
228 		NULL, NULL, "White", "Other",
229 	};
230 	cfg = (cfg & AC_DEFCFG_COLOR) >> AC_DEFCFG_COLOR_SHIFT;
231 	if (names[cfg])
232 		return names[cfg];
233 	else
234 		return "UNKNOWN";
235 }
236 
237 static void print_pin_caps(struct snd_info_buffer *buffer,
238 			   struct hda_codec *codec, hda_nid_t nid,
239 			   int *supports_vref)
240 {
241 	static char *jack_conns[4] = { "Jack", "N/A", "Fixed", "Both" };
242 	unsigned int caps, val;
243 
244 	caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
245 	snd_iprintf(buffer, "  Pincap 0x%08x:", caps);
246 	if (caps & AC_PINCAP_IN)
247 		snd_iprintf(buffer, " IN");
248 	if (caps & AC_PINCAP_OUT)
249 		snd_iprintf(buffer, " OUT");
250 	if (caps & AC_PINCAP_HP_DRV)
251 		snd_iprintf(buffer, " HP");
252 	if (caps & AC_PINCAP_EAPD)
253 		snd_iprintf(buffer, " EAPD");
254 	if (caps & AC_PINCAP_PRES_DETECT)
255 		snd_iprintf(buffer, " Detect");
256 	if (caps & AC_PINCAP_BALANCE)
257 		snd_iprintf(buffer, " Balanced");
258 	if (caps & AC_PINCAP_HDMI) {
259 		/* Realtek uses this bit as a different meaning */
260 		if ((codec->vendor_id >> 16) == 0x10ec)
261 			snd_iprintf(buffer, " R/L");
262 		else {
263 			if (caps & AC_PINCAP_HBR)
264 				snd_iprintf(buffer, " HBR");
265 			snd_iprintf(buffer, " HDMI");
266 		}
267 	}
268 	if (caps & AC_PINCAP_DP)
269 		snd_iprintf(buffer, " DP");
270 	if (caps & AC_PINCAP_TRIG_REQ)
271 		snd_iprintf(buffer, " Trigger");
272 	if (caps & AC_PINCAP_IMP_SENSE)
273 		snd_iprintf(buffer, " ImpSense");
274 	snd_iprintf(buffer, "\n");
275 	if (caps & AC_PINCAP_VREF) {
276 		unsigned int vref =
277 			(caps & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
278 		snd_iprintf(buffer, "    Vref caps:");
279 		if (vref & AC_PINCAP_VREF_HIZ)
280 			snd_iprintf(buffer, " HIZ");
281 		if (vref & AC_PINCAP_VREF_50)
282 			snd_iprintf(buffer, " 50");
283 		if (vref & AC_PINCAP_VREF_GRD)
284 			snd_iprintf(buffer, " GRD");
285 		if (vref & AC_PINCAP_VREF_80)
286 			snd_iprintf(buffer, " 80");
287 		if (vref & AC_PINCAP_VREF_100)
288 			snd_iprintf(buffer, " 100");
289 		snd_iprintf(buffer, "\n");
290 		*supports_vref = 1;
291 	} else
292 		*supports_vref = 0;
293 	if (caps & AC_PINCAP_EAPD) {
294 		val = snd_hda_codec_read(codec, nid, 0,
295 					 AC_VERB_GET_EAPD_BTLENABLE, 0);
296 		snd_iprintf(buffer, "  EAPD 0x%x:", val);
297 		if (val & AC_EAPDBTL_BALANCED)
298 			snd_iprintf(buffer, " BALANCED");
299 		if (val & AC_EAPDBTL_EAPD)
300 			snd_iprintf(buffer, " EAPD");
301 		if (val & AC_EAPDBTL_LR_SWAP)
302 			snd_iprintf(buffer, " R/L");
303 		snd_iprintf(buffer, "\n");
304 	}
305 	caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
306 	snd_iprintf(buffer, "  Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
307 		    jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
308 		    snd_hda_get_jack_type(caps),
309 		    snd_hda_get_jack_connectivity(caps),
310 		    snd_hda_get_jack_location(caps));
311 	snd_iprintf(buffer, "    Conn = %s, Color = %s\n",
312 		    get_jack_connection(caps),
313 		    get_jack_color(caps));
314 	/* Default association and sequence values refer to default grouping
315 	 * of pin complexes and their sequence within the group. This is used
316 	 * for priority and resource allocation.
317 	 */
318 	snd_iprintf(buffer, "    DefAssociation = 0x%x, Sequence = 0x%x\n",
319 		    (caps & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT,
320 		    caps & AC_DEFCFG_SEQUENCE);
321 	if (((caps & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT) &
322 	    AC_DEFCFG_MISC_NO_PRESENCE) {
323 		/* Miscellaneous bit indicates external hardware does not
324 		 * support presence detection even if the pin complex
325 		 * indicates it is supported.
326 		 */
327 		snd_iprintf(buffer, "    Misc = NO_PRESENCE\n");
328 	}
329 }
330 
331 static void print_pin_ctls(struct snd_info_buffer *buffer,
332 			   struct hda_codec *codec, hda_nid_t nid,
333 			   int supports_vref)
334 {
335 	unsigned int pinctls;
336 
337 	pinctls = snd_hda_codec_read(codec, nid, 0,
338 				     AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
339 	snd_iprintf(buffer, "  Pin-ctls: 0x%02x:", pinctls);
340 	if (pinctls & AC_PINCTL_IN_EN)
341 		snd_iprintf(buffer, " IN");
342 	if (pinctls & AC_PINCTL_OUT_EN)
343 		snd_iprintf(buffer, " OUT");
344 	if (pinctls & AC_PINCTL_HP_EN)
345 		snd_iprintf(buffer, " HP");
346 	if (supports_vref) {
347 		int vref = pinctls & AC_PINCTL_VREFEN;
348 		switch (vref) {
349 		case AC_PINCTL_VREF_HIZ:
350 			snd_iprintf(buffer, " VREF_HIZ");
351 			break;
352 		case AC_PINCTL_VREF_50:
353 			snd_iprintf(buffer, " VREF_50");
354 			break;
355 		case AC_PINCTL_VREF_GRD:
356 			snd_iprintf(buffer, " VREF_GRD");
357 			break;
358 		case AC_PINCTL_VREF_80:
359 			snd_iprintf(buffer, " VREF_80");
360 			break;
361 		case AC_PINCTL_VREF_100:
362 			snd_iprintf(buffer, " VREF_100");
363 			break;
364 		}
365 	}
366 	snd_iprintf(buffer, "\n");
367 }
368 
369 static void print_vol_knob(struct snd_info_buffer *buffer,
370 			   struct hda_codec *codec, hda_nid_t nid)
371 {
372 	unsigned int cap = snd_hda_param_read(codec, nid,
373 					      AC_PAR_VOL_KNB_CAP);
374 	snd_iprintf(buffer, "  Volume-Knob: delta=%d, steps=%d, ",
375 		    (cap >> 7) & 1, cap & 0x7f);
376 	cap = snd_hda_codec_read(codec, nid, 0,
377 				 AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
378 	snd_iprintf(buffer, "direct=%d, val=%d\n",
379 		    (cap >> 7) & 1, cap & 0x7f);
380 }
381 
382 static void print_audio_io(struct snd_info_buffer *buffer,
383 			   struct hda_codec *codec, hda_nid_t nid,
384 			   unsigned int wid_type)
385 {
386 	int conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
387 	snd_iprintf(buffer,
388 		    "  Converter: stream=%d, channel=%d\n",
389 		    (conv & AC_CONV_STREAM) >> AC_CONV_STREAM_SHIFT,
390 		    conv & AC_CONV_CHANNEL);
391 
392 	if (wid_type == AC_WID_AUD_IN && (conv & AC_CONV_CHANNEL) == 0) {
393 		int sdi = snd_hda_codec_read(codec, nid, 0,
394 					     AC_VERB_GET_SDI_SELECT, 0);
395 		snd_iprintf(buffer, "  SDI-Select: %d\n",
396 			    sdi & AC_SDI_SELECT);
397 	}
398 }
399 
400 static void print_digital_conv(struct snd_info_buffer *buffer,
401 			       struct hda_codec *codec, hda_nid_t nid)
402 {
403 	unsigned int digi1 = snd_hda_codec_read(codec, nid, 0,
404 						AC_VERB_GET_DIGI_CONVERT_1, 0);
405 	unsigned char digi2 = digi1 >> 8;
406 	unsigned char digi3 = digi1 >> 16;
407 
408 	snd_iprintf(buffer, "  Digital:");
409 	if (digi1 & AC_DIG1_ENABLE)
410 		snd_iprintf(buffer, " Enabled");
411 	if (digi1 & AC_DIG1_V)
412 		snd_iprintf(buffer, " Validity");
413 	if (digi1 & AC_DIG1_VCFG)
414 		snd_iprintf(buffer, " ValidityCfg");
415 	if (digi1 & AC_DIG1_EMPHASIS)
416 		snd_iprintf(buffer, " Preemphasis");
417 	if (digi1 & AC_DIG1_COPYRIGHT)
418 		snd_iprintf(buffer, " Non-Copyright");
419 	if (digi1 & AC_DIG1_NONAUDIO)
420 		snd_iprintf(buffer, " Non-Audio");
421 	if (digi1 & AC_DIG1_PROFESSIONAL)
422 		snd_iprintf(buffer, " Pro");
423 	if (digi1 & AC_DIG1_LEVEL)
424 		snd_iprintf(buffer, " GenLevel");
425 	if (digi3 & AC_DIG3_KAE)
426 		snd_iprintf(buffer, " KAE");
427 	snd_iprintf(buffer, "\n");
428 	snd_iprintf(buffer, "  Digital category: 0x%x\n",
429 		    digi2 & AC_DIG2_CC);
430 	snd_iprintf(buffer, "  IEC Coding Type: 0x%x\n",
431 			digi3 & AC_DIG3_ICT);
432 }
433 
434 static const char *get_pwr_state(u32 state)
435 {
436 	static const char * const buf[] = {
437 		"D0", "D1", "D2", "D3", "D3cold"
438 	};
439 	if (state < ARRAY_SIZE(buf))
440 		return buf[state];
441 	return "UNKNOWN";
442 }
443 
444 static void print_power_state(struct snd_info_buffer *buffer,
445 			      struct hda_codec *codec, hda_nid_t nid)
446 {
447 	static char *names[] = {
448 		[ilog2(AC_PWRST_D0SUP)]		= "D0",
449 		[ilog2(AC_PWRST_D1SUP)]		= "D1",
450 		[ilog2(AC_PWRST_D2SUP)]		= "D2",
451 		[ilog2(AC_PWRST_D3SUP)]		= "D3",
452 		[ilog2(AC_PWRST_D3COLDSUP)]	= "D3cold",
453 		[ilog2(AC_PWRST_S3D3COLDSUP)]	= "S3D3cold",
454 		[ilog2(AC_PWRST_CLKSTOP)]	= "CLKSTOP",
455 		[ilog2(AC_PWRST_EPSS)]		= "EPSS",
456 	};
457 
458 	int sup = snd_hda_param_read(codec, nid, AC_PAR_POWER_STATE);
459 	int pwr = snd_hda_codec_read(codec, nid, 0,
460 				     AC_VERB_GET_POWER_STATE, 0);
461 	if (sup != -1)
462 		snd_iprintf(buffer, "  Power states: %s\n",
463 			    bits_names(sup, names, ARRAY_SIZE(names)));
464 
465 	snd_iprintf(buffer, "  Power: setting=%s, actual=%s",
466 		    get_pwr_state(pwr & AC_PWRST_SETTING),
467 		    get_pwr_state((pwr & AC_PWRST_ACTUAL) >>
468 				  AC_PWRST_ACTUAL_SHIFT));
469 	if (pwr & AC_PWRST_ERROR)
470 		snd_iprintf(buffer, ", Error");
471 	if (pwr & AC_PWRST_CLK_STOP_OK)
472 		snd_iprintf(buffer, ", Clock-stop-OK");
473 	if (pwr & AC_PWRST_SETTING_RESET)
474 		snd_iprintf(buffer, ", Setting-reset");
475 	snd_iprintf(buffer, "\n");
476 }
477 
478 static void print_unsol_cap(struct snd_info_buffer *buffer,
479 			      struct hda_codec *codec, hda_nid_t nid)
480 {
481 	int unsol = snd_hda_codec_read(codec, nid, 0,
482 				       AC_VERB_GET_UNSOLICITED_RESPONSE, 0);
483 	snd_iprintf(buffer,
484 		    "  Unsolicited: tag=%02x, enabled=%d\n",
485 		    unsol & AC_UNSOL_TAG,
486 		    (unsol & AC_UNSOL_ENABLED) ? 1 : 0);
487 }
488 
489 static void print_proc_caps(struct snd_info_buffer *buffer,
490 			    struct hda_codec *codec, hda_nid_t nid)
491 {
492 	unsigned int proc_caps = snd_hda_param_read(codec, nid,
493 						    AC_PAR_PROC_CAP);
494 	snd_iprintf(buffer, "  Processing caps: benign=%d, ncoeff=%d\n",
495 		    proc_caps & AC_PCAP_BENIGN,
496 		    (proc_caps & AC_PCAP_NUM_COEF) >> AC_PCAP_NUM_COEF_SHIFT);
497 }
498 
499 static void print_conn_list(struct snd_info_buffer *buffer,
500 			    struct hda_codec *codec, hda_nid_t nid,
501 			    unsigned int wid_type, hda_nid_t *conn,
502 			    int conn_len)
503 {
504 	int c, curr = -1;
505 
506 	if (conn_len > 1 &&
507 	    wid_type != AC_WID_AUD_MIX &&
508 	    wid_type != AC_WID_VOL_KNB &&
509 	    wid_type != AC_WID_POWER)
510 		curr = snd_hda_codec_read(codec, nid, 0,
511 					  AC_VERB_GET_CONNECT_SEL, 0);
512 	snd_iprintf(buffer, "  Connection: %d\n", conn_len);
513 	if (conn_len > 0) {
514 		snd_iprintf(buffer, "    ");
515 		for (c = 0; c < conn_len; c++) {
516 			snd_iprintf(buffer, " 0x%02x", conn[c]);
517 			if (c == curr)
518 				snd_iprintf(buffer, "*");
519 		}
520 		snd_iprintf(buffer, "\n");
521 	}
522 }
523 
524 static void print_gpio(struct snd_info_buffer *buffer,
525 		       struct hda_codec *codec, hda_nid_t nid)
526 {
527 	unsigned int gpio =
528 		snd_hda_param_read(codec, codec->afg, AC_PAR_GPIO_CAP);
529 	unsigned int enable, direction, wake, unsol, sticky, data;
530 	int i, max;
531 	snd_iprintf(buffer, "GPIO: io=%d, o=%d, i=%d, "
532 		    "unsolicited=%d, wake=%d\n",
533 		    gpio & AC_GPIO_IO_COUNT,
534 		    (gpio & AC_GPIO_O_COUNT) >> AC_GPIO_O_COUNT_SHIFT,
535 		    (gpio & AC_GPIO_I_COUNT) >> AC_GPIO_I_COUNT_SHIFT,
536 		    (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
537 		    (gpio & AC_GPIO_WAKE) ? 1 : 0);
538 	max = gpio & AC_GPIO_IO_COUNT;
539 	if (!max || max > 8)
540 		return;
541 	enable = snd_hda_codec_read(codec, nid, 0,
542 				    AC_VERB_GET_GPIO_MASK, 0);
543 	direction = snd_hda_codec_read(codec, nid, 0,
544 				       AC_VERB_GET_GPIO_DIRECTION, 0);
545 	wake = snd_hda_codec_read(codec, nid, 0,
546 				  AC_VERB_GET_GPIO_WAKE_MASK, 0);
547 	unsol  = snd_hda_codec_read(codec, nid, 0,
548 				    AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK, 0);
549 	sticky = snd_hda_codec_read(codec, nid, 0,
550 				    AC_VERB_GET_GPIO_STICKY_MASK, 0);
551 	data = snd_hda_codec_read(codec, nid, 0,
552 				  AC_VERB_GET_GPIO_DATA, 0);
553 	for (i = 0; i < max; ++i)
554 		snd_iprintf(buffer,
555 			    "  IO[%d]: enable=%d, dir=%d, wake=%d, "
556 			    "sticky=%d, data=%d, unsol=%d\n", i,
557 			    (enable & (1<<i)) ? 1 : 0,
558 			    (direction & (1<<i)) ? 1 : 0,
559 			    (wake & (1<<i)) ? 1 : 0,
560 			    (sticky & (1<<i)) ? 1 : 0,
561 			    (data & (1<<i)) ? 1 : 0,
562 			    (unsol & (1<<i)) ? 1 : 0);
563 	/* FIXME: add GPO and GPI pin information */
564 	print_nid_array(buffer, codec, nid, &codec->mixers);
565 	print_nid_array(buffer, codec, nid, &codec->nids);
566 }
567 
568 static void print_codec_info(struct snd_info_entry *entry,
569 			     struct snd_info_buffer *buffer)
570 {
571 	struct hda_codec *codec = entry->private_data;
572 	hda_nid_t nid;
573 	int i, nodes;
574 
575 	snd_iprintf(buffer, "Codec: ");
576 	if (codec->vendor_name && codec->chip_name)
577 		snd_iprintf(buffer, "%s %s\n",
578 			    codec->vendor_name, codec->chip_name);
579 	else
580 		snd_iprintf(buffer, "Not Set\n");
581 	snd_iprintf(buffer, "Address: %d\n", codec->addr);
582 	if (codec->afg)
583 		snd_iprintf(buffer, "AFG Function Id: 0x%x (unsol %u)\n",
584 			codec->afg_function_id, codec->afg_unsol);
585 	if (codec->mfg)
586 		snd_iprintf(buffer, "MFG Function Id: 0x%x (unsol %u)\n",
587 			codec->mfg_function_id, codec->mfg_unsol);
588 	snd_iprintf(buffer, "Vendor Id: 0x%08x\n", codec->vendor_id);
589 	snd_iprintf(buffer, "Subsystem Id: 0x%08x\n", codec->subsystem_id);
590 	snd_iprintf(buffer, "Revision Id: 0x%x\n", codec->revision_id);
591 
592 	if (codec->mfg)
593 		snd_iprintf(buffer, "Modem Function Group: 0x%x\n", codec->mfg);
594 	else
595 		snd_iprintf(buffer, "No Modem Function Group found\n");
596 
597 	if (! codec->afg)
598 		return;
599 	snd_hda_power_up(codec);
600 	snd_iprintf(buffer, "Default PCM:\n");
601 	print_pcm_caps(buffer, codec, codec->afg);
602 	snd_iprintf(buffer, "Default Amp-In caps: ");
603 	print_amp_caps(buffer, codec, codec->afg, HDA_INPUT);
604 	snd_iprintf(buffer, "Default Amp-Out caps: ");
605 	print_amp_caps(buffer, codec, codec->afg, HDA_OUTPUT);
606 
607 	nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
608 	if (! nid || nodes < 0) {
609 		snd_iprintf(buffer, "Invalid AFG subtree\n");
610 		snd_hda_power_down(codec);
611 		return;
612 	}
613 
614 	print_gpio(buffer, codec, codec->afg);
615 	if (codec->proc_widget_hook)
616 		codec->proc_widget_hook(buffer, codec, codec->afg);
617 
618 	for (i = 0; i < nodes; i++, nid++) {
619 		unsigned int wid_caps =
620 			snd_hda_param_read(codec, nid,
621 					   AC_PAR_AUDIO_WIDGET_CAP);
622 		unsigned int wid_type = get_wcaps_type(wid_caps);
623 		hda_nid_t conn[HDA_MAX_CONNECTIONS];
624 		int conn_len = 0;
625 
626 		snd_iprintf(buffer, "Node 0x%02x [%s] wcaps 0x%x:", nid,
627 			    get_wid_type_name(wid_type), wid_caps);
628 		if (wid_caps & AC_WCAP_STEREO) {
629 			unsigned int chans = get_wcaps_channels(wid_caps);
630 			if (chans == 2)
631 				snd_iprintf(buffer, " Stereo");
632 			else
633 				snd_iprintf(buffer, " %d-Channels", chans);
634 		} else
635 			snd_iprintf(buffer, " Mono");
636 		if (wid_caps & AC_WCAP_DIGITAL)
637 			snd_iprintf(buffer, " Digital");
638 		if (wid_caps & AC_WCAP_IN_AMP)
639 			snd_iprintf(buffer, " Amp-In");
640 		if (wid_caps & AC_WCAP_OUT_AMP)
641 			snd_iprintf(buffer, " Amp-Out");
642 		if (wid_caps & AC_WCAP_STRIPE)
643 			snd_iprintf(buffer, " Stripe");
644 		if (wid_caps & AC_WCAP_LR_SWAP)
645 			snd_iprintf(buffer, " R/L");
646 		if (wid_caps & AC_WCAP_CP_CAPS)
647 			snd_iprintf(buffer, " CP");
648 		snd_iprintf(buffer, "\n");
649 
650 		print_nid_array(buffer, codec, nid, &codec->mixers);
651 		print_nid_array(buffer, codec, nid, &codec->nids);
652 		print_nid_pcms(buffer, codec, nid);
653 
654 		/* volume knob is a special widget that always have connection
655 		 * list
656 		 */
657 		if (wid_type == AC_WID_VOL_KNB)
658 			wid_caps |= AC_WCAP_CONN_LIST;
659 
660 		if (wid_caps & AC_WCAP_CONN_LIST)
661 			conn_len = snd_hda_get_raw_connections(codec, nid, conn,
662 							   HDA_MAX_CONNECTIONS);
663 
664 		if (wid_caps & AC_WCAP_IN_AMP) {
665 			snd_iprintf(buffer, "  Amp-In caps: ");
666 			print_amp_caps(buffer, codec, nid, HDA_INPUT);
667 			snd_iprintf(buffer, "  Amp-In vals: ");
668 			if (wid_type == AC_WID_PIN ||
669 			    (codec->single_adc_amp &&
670 			     wid_type == AC_WID_AUD_IN))
671 				print_amp_vals(buffer, codec, nid, HDA_INPUT,
672 					       wid_caps & AC_WCAP_STEREO,
673 					       1);
674 			else
675 				print_amp_vals(buffer, codec, nid, HDA_INPUT,
676 					       wid_caps & AC_WCAP_STEREO,
677 					       conn_len);
678 		}
679 		if (wid_caps & AC_WCAP_OUT_AMP) {
680 			snd_iprintf(buffer, "  Amp-Out caps: ");
681 			print_amp_caps(buffer, codec, nid, HDA_OUTPUT);
682 			snd_iprintf(buffer, "  Amp-Out vals: ");
683 			if (wid_type == AC_WID_PIN &&
684 			    codec->pin_amp_workaround)
685 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
686 					       wid_caps & AC_WCAP_STEREO,
687 					       conn_len);
688 			else
689 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
690 					       wid_caps & AC_WCAP_STEREO, 1);
691 		}
692 
693 		switch (wid_type) {
694 		case AC_WID_PIN: {
695 			int supports_vref;
696 			print_pin_caps(buffer, codec, nid, &supports_vref);
697 			print_pin_ctls(buffer, codec, nid, supports_vref);
698 			break;
699 		}
700 		case AC_WID_VOL_KNB:
701 			print_vol_knob(buffer, codec, nid);
702 			break;
703 		case AC_WID_AUD_OUT:
704 		case AC_WID_AUD_IN:
705 			print_audio_io(buffer, codec, nid, wid_type);
706 			if (wid_caps & AC_WCAP_DIGITAL)
707 				print_digital_conv(buffer, codec, nid);
708 			if (wid_caps & AC_WCAP_FORMAT_OVRD) {
709 				snd_iprintf(buffer, "  PCM:\n");
710 				print_pcm_caps(buffer, codec, nid);
711 			}
712 			break;
713 		}
714 
715 		if (wid_caps & AC_WCAP_UNSOL_CAP)
716 			print_unsol_cap(buffer, codec, nid);
717 
718 		if (wid_caps & AC_WCAP_POWER)
719 			print_power_state(buffer, codec, nid);
720 
721 		if (wid_caps & AC_WCAP_DELAY)
722 			snd_iprintf(buffer, "  Delay: %d samples\n",
723 				    (wid_caps & AC_WCAP_DELAY) >>
724 				    AC_WCAP_DELAY_SHIFT);
725 
726 		if (wid_caps & AC_WCAP_CONN_LIST)
727 			print_conn_list(buffer, codec, nid, wid_type,
728 					conn, conn_len);
729 
730 		if (wid_caps & AC_WCAP_PROC_WID)
731 			print_proc_caps(buffer, codec, nid);
732 
733 		if (codec->proc_widget_hook)
734 			codec->proc_widget_hook(buffer, codec, nid);
735 	}
736 	snd_hda_power_down(codec);
737 }
738 
739 /*
740  * create a proc read
741  */
742 int snd_hda_codec_proc_new(struct hda_codec *codec)
743 {
744 	char name[32];
745 	struct snd_info_entry *entry;
746 	int err;
747 
748 	snprintf(name, sizeof(name), "codec#%d", codec->addr);
749 	err = snd_card_proc_new(codec->bus->card, name, &entry);
750 	if (err < 0)
751 		return err;
752 
753 	snd_info_set_text_ops(entry, codec, print_codec_info);
754 	return 0;
755 }
756 
757