xref: /linux/sound/pci/hda/hda_proc.c (revision 60e13231561b3a4c5269bfa1ef6c0569ad6f28ec)
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 	wid_value &= 0xf;
58 	if (names[wid_value])
59 		return names[wid_value];
60 	else
61 		return "UNKNOWN Widget";
62 }
63 
64 static void print_nid_array(struct snd_info_buffer *buffer,
65 			    struct hda_codec *codec, hda_nid_t nid,
66 			    struct snd_array *array)
67 {
68 	int i;
69 	struct hda_nid_item *items = array->list, *item;
70 	struct snd_kcontrol *kctl;
71 	for (i = 0; i < array->used; i++) {
72 		item = &items[i];
73 		if (item->nid == nid) {
74 			kctl = item->kctl;
75 			snd_iprintf(buffer,
76 			  "  Control: name=\"%s\", index=%i, device=%i\n",
77 			  kctl->id.name, kctl->id.index + item->index,
78 			  kctl->id.device);
79 			if (item->flags & HDA_NID_ITEM_AMP)
80 				snd_iprintf(buffer,
81 				  "    ControlAmp: chs=%lu, dir=%s, "
82 				  "idx=%lu, ofs=%lu\n",
83 				  get_amp_channels(kctl),
84 				  get_amp_direction(kctl) ? "Out" : "In",
85 				  get_amp_index(kctl),
86 				  get_amp_offset(kctl));
87 		}
88 	}
89 }
90 
91 static void print_nid_pcms(struct snd_info_buffer *buffer,
92 			   struct hda_codec *codec, hda_nid_t nid)
93 {
94 	int pcm, type;
95 	struct hda_pcm *cpcm;
96 	for (pcm = 0; pcm < codec->num_pcms; pcm++) {
97 		cpcm = &codec->pcm_info[pcm];
98 		for (type = 0; type < 2; type++) {
99 			if (cpcm->stream[type].nid != nid || cpcm->pcm == NULL)
100 				continue;
101 			snd_iprintf(buffer, "  Device: name=\"%s\", "
102 				    "type=\"%s\", device=%i\n",
103 				    cpcm->name,
104 				    snd_hda_pcm_type_name[cpcm->pcm_type],
105 				    cpcm->pcm->device);
106 		}
107 	}
108 }
109 
110 static void print_amp_caps(struct snd_info_buffer *buffer,
111 			   struct hda_codec *codec, hda_nid_t nid, int dir)
112 {
113 	unsigned int caps;
114 	caps = snd_hda_param_read(codec, nid,
115 				  dir == HDA_OUTPUT ?
116 				    AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
117 	if (caps == -1 || caps == 0) {
118 		snd_iprintf(buffer, "N/A\n");
119 		return;
120 	}
121 	snd_iprintf(buffer, "ofs=0x%02x, nsteps=0x%02x, stepsize=0x%02x, "
122 		    "mute=%x\n",
123 		    caps & AC_AMPCAP_OFFSET,
124 		    (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT,
125 		    (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT,
126 		    (caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT);
127 }
128 
129 static void print_amp_vals(struct snd_info_buffer *buffer,
130 			   struct hda_codec *codec, hda_nid_t nid,
131 			   int dir, int stereo, int indices)
132 {
133 	unsigned int val;
134 	int i;
135 
136 	dir = dir == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
137 	for (i = 0; i < indices; i++) {
138 		snd_iprintf(buffer, " [");
139 		if (stereo) {
140 			val = snd_hda_codec_read(codec, nid, 0,
141 						 AC_VERB_GET_AMP_GAIN_MUTE,
142 						 AC_AMP_GET_LEFT | dir | i);
143 			snd_iprintf(buffer, "0x%02x ", val);
144 		}
145 		val = snd_hda_codec_read(codec, nid, 0,
146 					 AC_VERB_GET_AMP_GAIN_MUTE,
147 					 AC_AMP_GET_RIGHT | dir | i);
148 		snd_iprintf(buffer, "0x%02x]", val);
149 	}
150 	snd_iprintf(buffer, "\n");
151 }
152 
153 static void print_pcm_rates(struct snd_info_buffer *buffer, unsigned int pcm)
154 {
155 	char buf[SND_PRINT_RATES_ADVISED_BUFSIZE];
156 
157 	pcm &= AC_SUPPCM_RATES;
158 	snd_iprintf(buffer, "    rates [0x%x]:", pcm);
159 	snd_print_pcm_rates(pcm, buf, sizeof(buf));
160 	snd_iprintf(buffer, "%s\n", buf);
161 }
162 
163 static void print_pcm_bits(struct snd_info_buffer *buffer, unsigned int pcm)
164 {
165 	char buf[SND_PRINT_BITS_ADVISED_BUFSIZE];
166 
167 	snd_iprintf(buffer, "    bits [0x%x]:", (pcm >> 16) & 0xff);
168 	snd_print_pcm_bits(pcm, buf, sizeof(buf));
169 	snd_iprintf(buffer, "%s\n", buf);
170 }
171 
172 static void print_pcm_formats(struct snd_info_buffer *buffer,
173 			      unsigned int streams)
174 {
175 	snd_iprintf(buffer, "    formats [0x%x]:", streams & 0xf);
176 	if (streams & AC_SUPFMT_PCM)
177 		snd_iprintf(buffer, " PCM");
178 	if (streams & AC_SUPFMT_FLOAT32)
179 		snd_iprintf(buffer, " FLOAT");
180 	if (streams & AC_SUPFMT_AC3)
181 		snd_iprintf(buffer, " AC3");
182 	snd_iprintf(buffer, "\n");
183 }
184 
185 static void print_pcm_caps(struct snd_info_buffer *buffer,
186 			   struct hda_codec *codec, hda_nid_t nid)
187 {
188 	unsigned int pcm = snd_hda_param_read(codec, nid, AC_PAR_PCM);
189 	unsigned int stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
190 	if (pcm == -1 || stream == -1) {
191 		snd_iprintf(buffer, "N/A\n");
192 		return;
193 	}
194 	print_pcm_rates(buffer, pcm);
195 	print_pcm_bits(buffer, pcm);
196 	print_pcm_formats(buffer, stream);
197 }
198 
199 static const char *get_jack_connection(u32 cfg)
200 {
201 	static char *names[16] = {
202 		"Unknown", "1/8", "1/4", "ATAPI",
203 		"RCA", "Optical","Digital", "Analog",
204 		"DIN", "XLR", "RJ11", "Comb",
205 		NULL, NULL, NULL, "Other"
206 	};
207 	cfg = (cfg & AC_DEFCFG_CONN_TYPE) >> AC_DEFCFG_CONN_TYPE_SHIFT;
208 	if (names[cfg])
209 		return names[cfg];
210 	else
211 		return "UNKNOWN";
212 }
213 
214 static const char *get_jack_color(u32 cfg)
215 {
216 	static char *names[16] = {
217 		"Unknown", "Black", "Grey", "Blue",
218 		"Green", "Red", "Orange", "Yellow",
219 		"Purple", "Pink", NULL, NULL,
220 		NULL, NULL, "White", "Other",
221 	};
222 	cfg = (cfg & AC_DEFCFG_COLOR) >> AC_DEFCFG_COLOR_SHIFT;
223 	if (names[cfg])
224 		return names[cfg];
225 	else
226 		return "UNKNOWN";
227 }
228 
229 static void print_pin_caps(struct snd_info_buffer *buffer,
230 			   struct hda_codec *codec, hda_nid_t nid,
231 			   int *supports_vref)
232 {
233 	static char *jack_conns[4] = { "Jack", "N/A", "Fixed", "Both" };
234 	unsigned int caps, val;
235 
236 	caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
237 	snd_iprintf(buffer, "  Pincap 0x%08x:", caps);
238 	if (caps & AC_PINCAP_IN)
239 		snd_iprintf(buffer, " IN");
240 	if (caps & AC_PINCAP_OUT)
241 		snd_iprintf(buffer, " OUT");
242 	if (caps & AC_PINCAP_HP_DRV)
243 		snd_iprintf(buffer, " HP");
244 	if (caps & AC_PINCAP_EAPD)
245 		snd_iprintf(buffer, " EAPD");
246 	if (caps & AC_PINCAP_PRES_DETECT)
247 		snd_iprintf(buffer, " Detect");
248 	if (caps & AC_PINCAP_BALANCE)
249 		snd_iprintf(buffer, " Balanced");
250 	if (caps & AC_PINCAP_HDMI) {
251 		/* Realtek uses this bit as a different meaning */
252 		if ((codec->vendor_id >> 16) == 0x10ec)
253 			snd_iprintf(buffer, " R/L");
254 		else {
255 			if (caps & AC_PINCAP_HBR)
256 				snd_iprintf(buffer, " HBR");
257 			snd_iprintf(buffer, " HDMI");
258 		}
259 	}
260 	if (caps & AC_PINCAP_DP)
261 		snd_iprintf(buffer, " DP");
262 	if (caps & AC_PINCAP_TRIG_REQ)
263 		snd_iprintf(buffer, " Trigger");
264 	if (caps & AC_PINCAP_IMP_SENSE)
265 		snd_iprintf(buffer, " ImpSense");
266 	snd_iprintf(buffer, "\n");
267 	if (caps & AC_PINCAP_VREF) {
268 		unsigned int vref =
269 			(caps & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
270 		snd_iprintf(buffer, "    Vref caps:");
271 		if (vref & AC_PINCAP_VREF_HIZ)
272 			snd_iprintf(buffer, " HIZ");
273 		if (vref & AC_PINCAP_VREF_50)
274 			snd_iprintf(buffer, " 50");
275 		if (vref & AC_PINCAP_VREF_GRD)
276 			snd_iprintf(buffer, " GRD");
277 		if (vref & AC_PINCAP_VREF_80)
278 			snd_iprintf(buffer, " 80");
279 		if (vref & AC_PINCAP_VREF_100)
280 			snd_iprintf(buffer, " 100");
281 		snd_iprintf(buffer, "\n");
282 		*supports_vref = 1;
283 	} else
284 		*supports_vref = 0;
285 	if (caps & AC_PINCAP_EAPD) {
286 		val = snd_hda_codec_read(codec, nid, 0,
287 					 AC_VERB_GET_EAPD_BTLENABLE, 0);
288 		snd_iprintf(buffer, "  EAPD 0x%x:", val);
289 		if (val & AC_EAPDBTL_BALANCED)
290 			snd_iprintf(buffer, " BALANCED");
291 		if (val & AC_EAPDBTL_EAPD)
292 			snd_iprintf(buffer, " EAPD");
293 		if (val & AC_EAPDBTL_LR_SWAP)
294 			snd_iprintf(buffer, " R/L");
295 		snd_iprintf(buffer, "\n");
296 	}
297 	caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
298 	snd_iprintf(buffer, "  Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
299 		    jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
300 		    snd_hda_get_jack_type(caps),
301 		    snd_hda_get_jack_connectivity(caps),
302 		    snd_hda_get_jack_location(caps));
303 	snd_iprintf(buffer, "    Conn = %s, Color = %s\n",
304 		    get_jack_connection(caps),
305 		    get_jack_color(caps));
306 	/* Default association and sequence values refer to default grouping
307 	 * of pin complexes and their sequence within the group. This is used
308 	 * for priority and resource allocation.
309 	 */
310 	snd_iprintf(buffer, "    DefAssociation = 0x%x, Sequence = 0x%x\n",
311 		    (caps & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT,
312 		    caps & AC_DEFCFG_SEQUENCE);
313 	if (((caps & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT) &
314 	    AC_DEFCFG_MISC_NO_PRESENCE) {
315 		/* Miscellaneous bit indicates external hardware does not
316 		 * support presence detection even if the pin complex
317 		 * indicates it is supported.
318 		 */
319 		snd_iprintf(buffer, "    Misc = NO_PRESENCE\n");
320 	}
321 }
322 
323 static void print_pin_ctls(struct snd_info_buffer *buffer,
324 			   struct hda_codec *codec, hda_nid_t nid,
325 			   int supports_vref)
326 {
327 	unsigned int pinctls;
328 
329 	pinctls = snd_hda_codec_read(codec, nid, 0,
330 				     AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
331 	snd_iprintf(buffer, "  Pin-ctls: 0x%02x:", pinctls);
332 	if (pinctls & AC_PINCTL_IN_EN)
333 		snd_iprintf(buffer, " IN");
334 	if (pinctls & AC_PINCTL_OUT_EN)
335 		snd_iprintf(buffer, " OUT");
336 	if (pinctls & AC_PINCTL_HP_EN)
337 		snd_iprintf(buffer, " HP");
338 	if (supports_vref) {
339 		int vref = pinctls & AC_PINCTL_VREFEN;
340 		switch (vref) {
341 		case AC_PINCTL_VREF_HIZ:
342 			snd_iprintf(buffer, " VREF_HIZ");
343 			break;
344 		case AC_PINCTL_VREF_50:
345 			snd_iprintf(buffer, " VREF_50");
346 			break;
347 		case AC_PINCTL_VREF_GRD:
348 			snd_iprintf(buffer, " VREF_GRD");
349 			break;
350 		case AC_PINCTL_VREF_80:
351 			snd_iprintf(buffer, " VREF_80");
352 			break;
353 		case AC_PINCTL_VREF_100:
354 			snd_iprintf(buffer, " VREF_100");
355 			break;
356 		}
357 	}
358 	snd_iprintf(buffer, "\n");
359 }
360 
361 static void print_vol_knob(struct snd_info_buffer *buffer,
362 			   struct hda_codec *codec, hda_nid_t nid)
363 {
364 	unsigned int cap = snd_hda_param_read(codec, nid,
365 					      AC_PAR_VOL_KNB_CAP);
366 	snd_iprintf(buffer, "  Volume-Knob: delta=%d, steps=%d, ",
367 		    (cap >> 7) & 1, cap & 0x7f);
368 	cap = snd_hda_codec_read(codec, nid, 0,
369 				 AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
370 	snd_iprintf(buffer, "direct=%d, val=%d\n",
371 		    (cap >> 7) & 1, cap & 0x7f);
372 }
373 
374 static void print_audio_io(struct snd_info_buffer *buffer,
375 			   struct hda_codec *codec, hda_nid_t nid,
376 			   unsigned int wid_type)
377 {
378 	int conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
379 	snd_iprintf(buffer,
380 		    "  Converter: stream=%d, channel=%d\n",
381 		    (conv & AC_CONV_STREAM) >> AC_CONV_STREAM_SHIFT,
382 		    conv & AC_CONV_CHANNEL);
383 
384 	if (wid_type == AC_WID_AUD_IN && (conv & AC_CONV_CHANNEL) == 0) {
385 		int sdi = snd_hda_codec_read(codec, nid, 0,
386 					     AC_VERB_GET_SDI_SELECT, 0);
387 		snd_iprintf(buffer, "  SDI-Select: %d\n",
388 			    sdi & AC_SDI_SELECT);
389 	}
390 }
391 
392 static void print_digital_conv(struct snd_info_buffer *buffer,
393 			       struct hda_codec *codec, hda_nid_t nid)
394 {
395 	unsigned int digi1 = snd_hda_codec_read(codec, nid, 0,
396 						AC_VERB_GET_DIGI_CONVERT_1, 0);
397 	snd_iprintf(buffer, "  Digital:");
398 	if (digi1 & AC_DIG1_ENABLE)
399 		snd_iprintf(buffer, " Enabled");
400 	if (digi1 & AC_DIG1_V)
401 		snd_iprintf(buffer, " Validity");
402 	if (digi1 & AC_DIG1_VCFG)
403 		snd_iprintf(buffer, " ValidityCfg");
404 	if (digi1 & AC_DIG1_EMPHASIS)
405 		snd_iprintf(buffer, " Preemphasis");
406 	if (digi1 & AC_DIG1_COPYRIGHT)
407 		snd_iprintf(buffer, " Copyright");
408 	if (digi1 & AC_DIG1_NONAUDIO)
409 		snd_iprintf(buffer, " Non-Audio");
410 	if (digi1 & AC_DIG1_PROFESSIONAL)
411 		snd_iprintf(buffer, " Pro");
412 	if (digi1 & AC_DIG1_LEVEL)
413 		snd_iprintf(buffer, " GenLevel");
414 	snd_iprintf(buffer, "\n");
415 	snd_iprintf(buffer, "  Digital category: 0x%x\n",
416 		    (digi1 >> 8) & AC_DIG2_CC);
417 }
418 
419 static const char *get_pwr_state(u32 state)
420 {
421 	static const char * const buf[4] = {
422 		"D0", "D1", "D2", "D3"
423 	};
424 	if (state < 4)
425 		return buf[state];
426 	return "UNKNOWN";
427 }
428 
429 static void print_power_state(struct snd_info_buffer *buffer,
430 			      struct hda_codec *codec, hda_nid_t nid)
431 {
432 	static char *names[] = {
433 		[ilog2(AC_PWRST_D0SUP)]		= "D0",
434 		[ilog2(AC_PWRST_D1SUP)]		= "D1",
435 		[ilog2(AC_PWRST_D2SUP)]		= "D2",
436 		[ilog2(AC_PWRST_D3SUP)]		= "D3",
437 		[ilog2(AC_PWRST_D3COLDSUP)]	= "D3cold",
438 		[ilog2(AC_PWRST_S3D3COLDSUP)]	= "S3D3cold",
439 		[ilog2(AC_PWRST_CLKSTOP)]	= "CLKSTOP",
440 		[ilog2(AC_PWRST_EPSS)]		= "EPSS",
441 	};
442 
443 	int sup = snd_hda_param_read(codec, nid, AC_PAR_POWER_STATE);
444 	int pwr = snd_hda_codec_read(codec, nid, 0,
445 				     AC_VERB_GET_POWER_STATE, 0);
446 	if (sup)
447 		snd_iprintf(buffer, "  Power states: %s\n",
448 			    bits_names(sup, names, ARRAY_SIZE(names)));
449 
450 	snd_iprintf(buffer, "  Power: setting=%s, actual=%s\n",
451 		    get_pwr_state(pwr & AC_PWRST_SETTING),
452 		    get_pwr_state((pwr & AC_PWRST_ACTUAL) >>
453 				  AC_PWRST_ACTUAL_SHIFT));
454 }
455 
456 static void print_unsol_cap(struct snd_info_buffer *buffer,
457 			      struct hda_codec *codec, hda_nid_t nid)
458 {
459 	int unsol = snd_hda_codec_read(codec, nid, 0,
460 				       AC_VERB_GET_UNSOLICITED_RESPONSE, 0);
461 	snd_iprintf(buffer,
462 		    "  Unsolicited: tag=%02x, enabled=%d\n",
463 		    unsol & AC_UNSOL_TAG,
464 		    (unsol & AC_UNSOL_ENABLED) ? 1 : 0);
465 }
466 
467 static void print_proc_caps(struct snd_info_buffer *buffer,
468 			    struct hda_codec *codec, hda_nid_t nid)
469 {
470 	unsigned int proc_caps = snd_hda_param_read(codec, nid,
471 						    AC_PAR_PROC_CAP);
472 	snd_iprintf(buffer, "  Processing caps: benign=%d, ncoeff=%d\n",
473 		    proc_caps & AC_PCAP_BENIGN,
474 		    (proc_caps & AC_PCAP_NUM_COEF) >> AC_PCAP_NUM_COEF_SHIFT);
475 }
476 
477 static void print_conn_list(struct snd_info_buffer *buffer,
478 			    struct hda_codec *codec, hda_nid_t nid,
479 			    unsigned int wid_type, hda_nid_t *conn,
480 			    int conn_len)
481 {
482 	int c, curr = -1;
483 
484 	if (conn_len > 1 &&
485 	    wid_type != AC_WID_AUD_MIX &&
486 	    wid_type != AC_WID_VOL_KNB &&
487 	    wid_type != AC_WID_POWER)
488 		curr = snd_hda_codec_read(codec, nid, 0,
489 					  AC_VERB_GET_CONNECT_SEL, 0);
490 	snd_iprintf(buffer, "  Connection: %d\n", conn_len);
491 	if (conn_len > 0) {
492 		snd_iprintf(buffer, "    ");
493 		for (c = 0; c < conn_len; c++) {
494 			snd_iprintf(buffer, " 0x%02x", conn[c]);
495 			if (c == curr)
496 				snd_iprintf(buffer, "*");
497 		}
498 		snd_iprintf(buffer, "\n");
499 	}
500 }
501 
502 static void print_gpio(struct snd_info_buffer *buffer,
503 		       struct hda_codec *codec, hda_nid_t nid)
504 {
505 	unsigned int gpio =
506 		snd_hda_param_read(codec, codec->afg, AC_PAR_GPIO_CAP);
507 	unsigned int enable, direction, wake, unsol, sticky, data;
508 	int i, max;
509 	snd_iprintf(buffer, "GPIO: io=%d, o=%d, i=%d, "
510 		    "unsolicited=%d, wake=%d\n",
511 		    gpio & AC_GPIO_IO_COUNT,
512 		    (gpio & AC_GPIO_O_COUNT) >> AC_GPIO_O_COUNT_SHIFT,
513 		    (gpio & AC_GPIO_I_COUNT) >> AC_GPIO_I_COUNT_SHIFT,
514 		    (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
515 		    (gpio & AC_GPIO_WAKE) ? 1 : 0);
516 	max = gpio & AC_GPIO_IO_COUNT;
517 	if (!max || max > 8)
518 		return;
519 	enable = snd_hda_codec_read(codec, nid, 0,
520 				    AC_VERB_GET_GPIO_MASK, 0);
521 	direction = snd_hda_codec_read(codec, nid, 0,
522 				       AC_VERB_GET_GPIO_DIRECTION, 0);
523 	wake = snd_hda_codec_read(codec, nid, 0,
524 				  AC_VERB_GET_GPIO_WAKE_MASK, 0);
525 	unsol  = snd_hda_codec_read(codec, nid, 0,
526 				    AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK, 0);
527 	sticky = snd_hda_codec_read(codec, nid, 0,
528 				    AC_VERB_GET_GPIO_STICKY_MASK, 0);
529 	data = snd_hda_codec_read(codec, nid, 0,
530 				  AC_VERB_GET_GPIO_DATA, 0);
531 	for (i = 0; i < max; ++i)
532 		snd_iprintf(buffer,
533 			    "  IO[%d]: enable=%d, dir=%d, wake=%d, "
534 			    "sticky=%d, data=%d, unsol=%d\n", i,
535 			    (enable & (1<<i)) ? 1 : 0,
536 			    (direction & (1<<i)) ? 1 : 0,
537 			    (wake & (1<<i)) ? 1 : 0,
538 			    (sticky & (1<<i)) ? 1 : 0,
539 			    (data & (1<<i)) ? 1 : 0,
540 			    (unsol & (1<<i)) ? 1 : 0);
541 	/* FIXME: add GPO and GPI pin information */
542 	print_nid_array(buffer, codec, nid, &codec->mixers);
543 	print_nid_array(buffer, codec, nid, &codec->nids);
544 }
545 
546 static void print_codec_info(struct snd_info_entry *entry,
547 			     struct snd_info_buffer *buffer)
548 {
549 	struct hda_codec *codec = entry->private_data;
550 	hda_nid_t nid;
551 	int i, nodes;
552 
553 	snd_iprintf(buffer, "Codec: ");
554 	if (codec->vendor_name && codec->chip_name)
555 		snd_iprintf(buffer, "%s %s\n",
556 			    codec->vendor_name, codec->chip_name);
557 	else
558 		snd_iprintf(buffer, "Not Set\n");
559 	snd_iprintf(buffer, "Address: %d\n", codec->addr);
560 	if (codec->afg)
561 		snd_iprintf(buffer, "AFG Function Id: 0x%x (unsol %u)\n",
562 			codec->afg_function_id, codec->afg_unsol);
563 	if (codec->mfg)
564 		snd_iprintf(buffer, "MFG Function Id: 0x%x (unsol %u)\n",
565 			codec->mfg_function_id, codec->mfg_unsol);
566 	snd_iprintf(buffer, "Vendor Id: 0x%08x\n", codec->vendor_id);
567 	snd_iprintf(buffer, "Subsystem Id: 0x%08x\n", codec->subsystem_id);
568 	snd_iprintf(buffer, "Revision Id: 0x%x\n", codec->revision_id);
569 
570 	if (codec->mfg)
571 		snd_iprintf(buffer, "Modem Function Group: 0x%x\n", codec->mfg);
572 	else
573 		snd_iprintf(buffer, "No Modem Function Group found\n");
574 
575 	if (! codec->afg)
576 		return;
577 	snd_hda_power_up(codec);
578 	snd_iprintf(buffer, "Default PCM:\n");
579 	print_pcm_caps(buffer, codec, codec->afg);
580 	snd_iprintf(buffer, "Default Amp-In caps: ");
581 	print_amp_caps(buffer, codec, codec->afg, HDA_INPUT);
582 	snd_iprintf(buffer, "Default Amp-Out caps: ");
583 	print_amp_caps(buffer, codec, codec->afg, HDA_OUTPUT);
584 
585 	nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
586 	if (! nid || nodes < 0) {
587 		snd_iprintf(buffer, "Invalid AFG subtree\n");
588 		snd_hda_power_down(codec);
589 		return;
590 	}
591 
592 	print_gpio(buffer, codec, codec->afg);
593 	if (codec->proc_widget_hook)
594 		codec->proc_widget_hook(buffer, codec, codec->afg);
595 
596 	for (i = 0; i < nodes; i++, nid++) {
597 		unsigned int wid_caps =
598 			snd_hda_param_read(codec, nid,
599 					   AC_PAR_AUDIO_WIDGET_CAP);
600 		unsigned int wid_type = get_wcaps_type(wid_caps);
601 		hda_nid_t conn[HDA_MAX_CONNECTIONS];
602 		int conn_len = 0;
603 
604 		snd_iprintf(buffer, "Node 0x%02x [%s] wcaps 0x%x:", nid,
605 			    get_wid_type_name(wid_type), wid_caps);
606 		if (wid_caps & AC_WCAP_STEREO) {
607 			unsigned int chans = get_wcaps_channels(wid_caps);
608 			if (chans == 2)
609 				snd_iprintf(buffer, " Stereo");
610 			else
611 				snd_iprintf(buffer, " %d-Channels", chans);
612 		} else
613 			snd_iprintf(buffer, " Mono");
614 		if (wid_caps & AC_WCAP_DIGITAL)
615 			snd_iprintf(buffer, " Digital");
616 		if (wid_caps & AC_WCAP_IN_AMP)
617 			snd_iprintf(buffer, " Amp-In");
618 		if (wid_caps & AC_WCAP_OUT_AMP)
619 			snd_iprintf(buffer, " Amp-Out");
620 		if (wid_caps & AC_WCAP_STRIPE)
621 			snd_iprintf(buffer, " Stripe");
622 		if (wid_caps & AC_WCAP_LR_SWAP)
623 			snd_iprintf(buffer, " R/L");
624 		if (wid_caps & AC_WCAP_CP_CAPS)
625 			snd_iprintf(buffer, " CP");
626 		snd_iprintf(buffer, "\n");
627 
628 		print_nid_array(buffer, codec, nid, &codec->mixers);
629 		print_nid_array(buffer, codec, nid, &codec->nids);
630 		print_nid_pcms(buffer, codec, nid);
631 
632 		/* volume knob is a special widget that always have connection
633 		 * list
634 		 */
635 		if (wid_type == AC_WID_VOL_KNB)
636 			wid_caps |= AC_WCAP_CONN_LIST;
637 
638 		if (wid_caps & AC_WCAP_CONN_LIST)
639 			conn_len = snd_hda_get_raw_connections(codec, nid, conn,
640 							   HDA_MAX_CONNECTIONS);
641 
642 		if (wid_caps & AC_WCAP_IN_AMP) {
643 			snd_iprintf(buffer, "  Amp-In caps: ");
644 			print_amp_caps(buffer, codec, nid, HDA_INPUT);
645 			snd_iprintf(buffer, "  Amp-In vals: ");
646 			print_amp_vals(buffer, codec, nid, HDA_INPUT,
647 				       wid_caps & AC_WCAP_STEREO,
648 				       wid_type == AC_WID_PIN ? 1 : conn_len);
649 		}
650 		if (wid_caps & AC_WCAP_OUT_AMP) {
651 			snd_iprintf(buffer, "  Amp-Out caps: ");
652 			print_amp_caps(buffer, codec, nid, HDA_OUTPUT);
653 			snd_iprintf(buffer, "  Amp-Out vals: ");
654 			if (wid_type == AC_WID_PIN &&
655 			    codec->pin_amp_workaround)
656 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
657 					       wid_caps & AC_WCAP_STEREO,
658 					       conn_len);
659 			else
660 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
661 					       wid_caps & AC_WCAP_STEREO, 1);
662 		}
663 
664 		switch (wid_type) {
665 		case AC_WID_PIN: {
666 			int supports_vref;
667 			print_pin_caps(buffer, codec, nid, &supports_vref);
668 			print_pin_ctls(buffer, codec, nid, supports_vref);
669 			break;
670 		}
671 		case AC_WID_VOL_KNB:
672 			print_vol_knob(buffer, codec, nid);
673 			break;
674 		case AC_WID_AUD_OUT:
675 		case AC_WID_AUD_IN:
676 			print_audio_io(buffer, codec, nid, wid_type);
677 			if (wid_caps & AC_WCAP_DIGITAL)
678 				print_digital_conv(buffer, codec, nid);
679 			if (wid_caps & AC_WCAP_FORMAT_OVRD) {
680 				snd_iprintf(buffer, "  PCM:\n");
681 				print_pcm_caps(buffer, codec, nid);
682 			}
683 			break;
684 		}
685 
686 		if (wid_caps & AC_WCAP_UNSOL_CAP)
687 			print_unsol_cap(buffer, codec, nid);
688 
689 		if (wid_caps & AC_WCAP_POWER)
690 			print_power_state(buffer, codec, nid);
691 
692 		if (wid_caps & AC_WCAP_DELAY)
693 			snd_iprintf(buffer, "  Delay: %d samples\n",
694 				    (wid_caps & AC_WCAP_DELAY) >>
695 				    AC_WCAP_DELAY_SHIFT);
696 
697 		if (wid_caps & AC_WCAP_CONN_LIST)
698 			print_conn_list(buffer, codec, nid, wid_type,
699 					conn, conn_len);
700 
701 		if (wid_caps & AC_WCAP_PROC_WID)
702 			print_proc_caps(buffer, codec, nid);
703 
704 		if (codec->proc_widget_hook)
705 			codec->proc_widget_hook(buffer, codec, nid);
706 	}
707 	snd_hda_power_down(codec);
708 }
709 
710 /*
711  * create a proc read
712  */
713 int snd_hda_codec_proc_new(struct hda_codec *codec)
714 {
715 	char name[32];
716 	struct snd_info_entry *entry;
717 	int err;
718 
719 	snprintf(name, sizeof(name), "codec#%d", codec->addr);
720 	err = snd_card_proc_new(codec->bus->card, name, &entry);
721 	if (err < 0)
722 		return err;
723 
724 	snd_info_set_text_ops(entry, codec, print_codec_info);
725 	return 0;
726 }
727 
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