xref: /linux/sound/pci/hda/hda_proc.c (revision 9f69e8a71026839d4bd2e0c6d269600bfaa6f84d)
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 /* always use noncached version */
36 #define param_read(codec, nid, parm) \
37 	snd_hdac_read_parm_uncached(&(codec)->core, nid, parm)
38 
39 static char *bits_names(unsigned int bits, char *names[], int size)
40 {
41 	int i, n;
42 	static char buf[128];
43 
44 	for (i = 0, n = 0; i < size; i++) {
45 		if (bits & (1U<<i) && names[i])
46 			n += snprintf(buf + n, sizeof(buf) - n, " %s",
47 				      names[i]);
48 	}
49 	buf[n] = '\0';
50 
51 	return buf;
52 }
53 
54 static const char *get_wid_type_name(unsigned int wid_value)
55 {
56 	static char *names[16] = {
57 		[AC_WID_AUD_OUT] = "Audio Output",
58 		[AC_WID_AUD_IN] = "Audio Input",
59 		[AC_WID_AUD_MIX] = "Audio Mixer",
60 		[AC_WID_AUD_SEL] = "Audio Selector",
61 		[AC_WID_PIN] = "Pin Complex",
62 		[AC_WID_POWER] = "Power Widget",
63 		[AC_WID_VOL_KNB] = "Volume Knob Widget",
64 		[AC_WID_BEEP] = "Beep Generator Widget",
65 		[AC_WID_VENDOR] = "Vendor Defined Widget",
66 	};
67 	if (wid_value == -1)
68 		return "UNKNOWN Widget";
69 	wid_value &= 0xf;
70 	if (names[wid_value])
71 		return names[wid_value];
72 	else
73 		return "UNKNOWN Widget";
74 }
75 
76 static void print_nid_array(struct snd_info_buffer *buffer,
77 			    struct hda_codec *codec, hda_nid_t nid,
78 			    struct snd_array *array)
79 {
80 	int i;
81 	struct hda_nid_item *items = array->list, *item;
82 	struct snd_kcontrol *kctl;
83 	for (i = 0; i < array->used; i++) {
84 		item = &items[i];
85 		if (item->nid == nid) {
86 			kctl = item->kctl;
87 			snd_iprintf(buffer,
88 			  "  Control: name=\"%s\", index=%i, device=%i\n",
89 			  kctl->id.name, kctl->id.index + item->index,
90 			  kctl->id.device);
91 			if (item->flags & HDA_NID_ITEM_AMP)
92 				snd_iprintf(buffer,
93 				  "    ControlAmp: chs=%lu, dir=%s, "
94 				  "idx=%lu, ofs=%lu\n",
95 				  get_amp_channels(kctl),
96 				  get_amp_direction(kctl) ? "Out" : "In",
97 				  get_amp_index(kctl),
98 				  get_amp_offset(kctl));
99 		}
100 	}
101 }
102 
103 static void print_nid_pcms(struct snd_info_buffer *buffer,
104 			   struct hda_codec *codec, hda_nid_t nid)
105 {
106 	int type;
107 	struct hda_pcm *cpcm;
108 
109 	list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
110 		for (type = 0; type < 2; type++) {
111 			if (cpcm->stream[type].nid != nid || cpcm->pcm == NULL)
112 				continue;
113 			snd_iprintf(buffer, "  Device: name=\"%s\", "
114 				    "type=\"%s\", device=%i\n",
115 				    cpcm->name,
116 				    snd_hda_pcm_type_name[cpcm->pcm_type],
117 				    cpcm->pcm->device);
118 		}
119 	}
120 }
121 
122 static void print_amp_caps(struct snd_info_buffer *buffer,
123 			   struct hda_codec *codec, hda_nid_t nid, int dir)
124 {
125 	unsigned int caps;
126 	caps = param_read(codec, nid, dir == HDA_OUTPUT ?
127 			  AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
128 	if (caps == -1 || caps == 0) {
129 		snd_iprintf(buffer, "N/A\n");
130 		return;
131 	}
132 	snd_iprintf(buffer, "ofs=0x%02x, nsteps=0x%02x, stepsize=0x%02x, "
133 		    "mute=%x\n",
134 		    caps & AC_AMPCAP_OFFSET,
135 		    (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT,
136 		    (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT,
137 		    (caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT);
138 }
139 
140 /* is this a stereo widget or a stereo-to-mono mix? */
141 static bool is_stereo_amps(struct hda_codec *codec, hda_nid_t nid,
142 			   int dir, unsigned int wcaps, int indices)
143 {
144 	hda_nid_t conn;
145 
146 	if (wcaps & AC_WCAP_STEREO)
147 		return true;
148 	/* check for a stereo-to-mono mix; it must be:
149 	 * only a single connection, only for input, and only a mixer widget
150 	 */
151 	if (indices != 1 || dir != HDA_INPUT ||
152 	    get_wcaps_type(wcaps) != AC_WID_AUD_MIX)
153 		return false;
154 
155 	if (snd_hda_get_raw_connections(codec, nid, &conn, 1) < 0)
156 		return false;
157 	/* the connection source is a stereo? */
158 	wcaps = snd_hda_param_read(codec, conn, AC_PAR_AUDIO_WIDGET_CAP);
159 	return !!(wcaps & AC_WCAP_STEREO);
160 }
161 
162 static void print_amp_vals(struct snd_info_buffer *buffer,
163 			   struct hda_codec *codec, hda_nid_t nid,
164 			   int dir, unsigned int wcaps, int indices)
165 {
166 	unsigned int val;
167 	bool stereo;
168 	int i;
169 
170 	stereo = is_stereo_amps(codec, nid, dir, wcaps, indices);
171 
172 	dir = dir == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
173 	for (i = 0; i < indices; i++) {
174 		snd_iprintf(buffer, " [");
175 		val = snd_hda_codec_read(codec, nid, 0,
176 					 AC_VERB_GET_AMP_GAIN_MUTE,
177 					 AC_AMP_GET_LEFT | dir | i);
178 		snd_iprintf(buffer, "0x%02x", val);
179 		if (stereo) {
180 			val = snd_hda_codec_read(codec, nid, 0,
181 						 AC_VERB_GET_AMP_GAIN_MUTE,
182 						 AC_AMP_GET_RIGHT | dir | i);
183 			snd_iprintf(buffer, " 0x%02x", val);
184 		}
185 		snd_iprintf(buffer, "]");
186 	}
187 	snd_iprintf(buffer, "\n");
188 }
189 
190 static void print_pcm_rates(struct snd_info_buffer *buffer, unsigned int pcm)
191 {
192 	static unsigned int rates[] = {
193 		8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
194 		96000, 176400, 192000, 384000
195 	};
196 	int i;
197 
198 	pcm &= AC_SUPPCM_RATES;
199 	snd_iprintf(buffer, "    rates [0x%x]:", pcm);
200 	for (i = 0; i < ARRAY_SIZE(rates); i++)
201 		if (pcm & (1 << i))
202 			snd_iprintf(buffer,  " %d", rates[i]);
203 	snd_iprintf(buffer, "\n");
204 }
205 
206 static void print_pcm_bits(struct snd_info_buffer *buffer, unsigned int pcm)
207 {
208 	char buf[SND_PRINT_BITS_ADVISED_BUFSIZE];
209 
210 	snd_iprintf(buffer, "    bits [0x%x]:", (pcm >> 16) & 0xff);
211 	snd_print_pcm_bits(pcm, buf, sizeof(buf));
212 	snd_iprintf(buffer, "%s\n", buf);
213 }
214 
215 static void print_pcm_formats(struct snd_info_buffer *buffer,
216 			      unsigned int streams)
217 {
218 	snd_iprintf(buffer, "    formats [0x%x]:", streams & 0xf);
219 	if (streams & AC_SUPFMT_PCM)
220 		snd_iprintf(buffer, " PCM");
221 	if (streams & AC_SUPFMT_FLOAT32)
222 		snd_iprintf(buffer, " FLOAT");
223 	if (streams & AC_SUPFMT_AC3)
224 		snd_iprintf(buffer, " AC3");
225 	snd_iprintf(buffer, "\n");
226 }
227 
228 static void print_pcm_caps(struct snd_info_buffer *buffer,
229 			   struct hda_codec *codec, hda_nid_t nid)
230 {
231 	unsigned int pcm = param_read(codec, nid, AC_PAR_PCM);
232 	unsigned int stream = param_read(codec, nid, AC_PAR_STREAM);
233 	if (pcm == -1 || stream == -1) {
234 		snd_iprintf(buffer, "N/A\n");
235 		return;
236 	}
237 	print_pcm_rates(buffer, pcm);
238 	print_pcm_bits(buffer, pcm);
239 	print_pcm_formats(buffer, stream);
240 }
241 
242 static const char *get_jack_connection(u32 cfg)
243 {
244 	static char *names[16] = {
245 		"Unknown", "1/8", "1/4", "ATAPI",
246 		"RCA", "Optical","Digital", "Analog",
247 		"DIN", "XLR", "RJ11", "Comb",
248 		NULL, NULL, NULL, "Other"
249 	};
250 	cfg = (cfg & AC_DEFCFG_CONN_TYPE) >> AC_DEFCFG_CONN_TYPE_SHIFT;
251 	if (names[cfg])
252 		return names[cfg];
253 	else
254 		return "UNKNOWN";
255 }
256 
257 static const char *get_jack_color(u32 cfg)
258 {
259 	static char *names[16] = {
260 		"Unknown", "Black", "Grey", "Blue",
261 		"Green", "Red", "Orange", "Yellow",
262 		"Purple", "Pink", NULL, NULL,
263 		NULL, NULL, "White", "Other",
264 	};
265 	cfg = (cfg & AC_DEFCFG_COLOR) >> AC_DEFCFG_COLOR_SHIFT;
266 	if (names[cfg])
267 		return names[cfg];
268 	else
269 		return "UNKNOWN";
270 }
271 
272 static void print_pin_caps(struct snd_info_buffer *buffer,
273 			   struct hda_codec *codec, hda_nid_t nid,
274 			   int *supports_vref)
275 {
276 	static char *jack_conns[4] = { "Jack", "N/A", "Fixed", "Both" };
277 	unsigned int caps, val;
278 
279 	caps = param_read(codec, nid, AC_PAR_PIN_CAP);
280 	snd_iprintf(buffer, "  Pincap 0x%08x:", caps);
281 	if (caps & AC_PINCAP_IN)
282 		snd_iprintf(buffer, " IN");
283 	if (caps & AC_PINCAP_OUT)
284 		snd_iprintf(buffer, " OUT");
285 	if (caps & AC_PINCAP_HP_DRV)
286 		snd_iprintf(buffer, " HP");
287 	if (caps & AC_PINCAP_EAPD)
288 		snd_iprintf(buffer, " EAPD");
289 	if (caps & AC_PINCAP_PRES_DETECT)
290 		snd_iprintf(buffer, " Detect");
291 	if (caps & AC_PINCAP_BALANCE)
292 		snd_iprintf(buffer, " Balanced");
293 	if (caps & AC_PINCAP_HDMI) {
294 		/* Realtek uses this bit as a different meaning */
295 		if ((codec->core.vendor_id >> 16) == 0x10ec)
296 			snd_iprintf(buffer, " R/L");
297 		else {
298 			if (caps & AC_PINCAP_HBR)
299 				snd_iprintf(buffer, " HBR");
300 			snd_iprintf(buffer, " HDMI");
301 		}
302 	}
303 	if (caps & AC_PINCAP_DP)
304 		snd_iprintf(buffer, " DP");
305 	if (caps & AC_PINCAP_TRIG_REQ)
306 		snd_iprintf(buffer, " Trigger");
307 	if (caps & AC_PINCAP_IMP_SENSE)
308 		snd_iprintf(buffer, " ImpSense");
309 	snd_iprintf(buffer, "\n");
310 	if (caps & AC_PINCAP_VREF) {
311 		unsigned int vref =
312 			(caps & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
313 		snd_iprintf(buffer, "    Vref caps:");
314 		if (vref & AC_PINCAP_VREF_HIZ)
315 			snd_iprintf(buffer, " HIZ");
316 		if (vref & AC_PINCAP_VREF_50)
317 			snd_iprintf(buffer, " 50");
318 		if (vref & AC_PINCAP_VREF_GRD)
319 			snd_iprintf(buffer, " GRD");
320 		if (vref & AC_PINCAP_VREF_80)
321 			snd_iprintf(buffer, " 80");
322 		if (vref & AC_PINCAP_VREF_100)
323 			snd_iprintf(buffer, " 100");
324 		snd_iprintf(buffer, "\n");
325 		*supports_vref = 1;
326 	} else
327 		*supports_vref = 0;
328 	if (caps & AC_PINCAP_EAPD) {
329 		val = snd_hda_codec_read(codec, nid, 0,
330 					 AC_VERB_GET_EAPD_BTLENABLE, 0);
331 		snd_iprintf(buffer, "  EAPD 0x%x:", val);
332 		if (val & AC_EAPDBTL_BALANCED)
333 			snd_iprintf(buffer, " BALANCED");
334 		if (val & AC_EAPDBTL_EAPD)
335 			snd_iprintf(buffer, " EAPD");
336 		if (val & AC_EAPDBTL_LR_SWAP)
337 			snd_iprintf(buffer, " R/L");
338 		snd_iprintf(buffer, "\n");
339 	}
340 	caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
341 	snd_iprintf(buffer, "  Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
342 		    jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
343 		    snd_hda_get_jack_type(caps),
344 		    snd_hda_get_jack_connectivity(caps),
345 		    snd_hda_get_jack_location(caps));
346 	snd_iprintf(buffer, "    Conn = %s, Color = %s\n",
347 		    get_jack_connection(caps),
348 		    get_jack_color(caps));
349 	/* Default association and sequence values refer to default grouping
350 	 * of pin complexes and their sequence within the group. This is used
351 	 * for priority and resource allocation.
352 	 */
353 	snd_iprintf(buffer, "    DefAssociation = 0x%x, Sequence = 0x%x\n",
354 		    (caps & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT,
355 		    caps & AC_DEFCFG_SEQUENCE);
356 	if (((caps & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT) &
357 	    AC_DEFCFG_MISC_NO_PRESENCE) {
358 		/* Miscellaneous bit indicates external hardware does not
359 		 * support presence detection even if the pin complex
360 		 * indicates it is supported.
361 		 */
362 		snd_iprintf(buffer, "    Misc = NO_PRESENCE\n");
363 	}
364 }
365 
366 static void print_pin_ctls(struct snd_info_buffer *buffer,
367 			   struct hda_codec *codec, hda_nid_t nid,
368 			   int supports_vref)
369 {
370 	unsigned int pinctls;
371 
372 	pinctls = snd_hda_codec_read(codec, nid, 0,
373 				     AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
374 	snd_iprintf(buffer, "  Pin-ctls: 0x%02x:", pinctls);
375 	if (pinctls & AC_PINCTL_IN_EN)
376 		snd_iprintf(buffer, " IN");
377 	if (pinctls & AC_PINCTL_OUT_EN)
378 		snd_iprintf(buffer, " OUT");
379 	if (pinctls & AC_PINCTL_HP_EN)
380 		snd_iprintf(buffer, " HP");
381 	if (supports_vref) {
382 		int vref = pinctls & AC_PINCTL_VREFEN;
383 		switch (vref) {
384 		case AC_PINCTL_VREF_HIZ:
385 			snd_iprintf(buffer, " VREF_HIZ");
386 			break;
387 		case AC_PINCTL_VREF_50:
388 			snd_iprintf(buffer, " VREF_50");
389 			break;
390 		case AC_PINCTL_VREF_GRD:
391 			snd_iprintf(buffer, " VREF_GRD");
392 			break;
393 		case AC_PINCTL_VREF_80:
394 			snd_iprintf(buffer, " VREF_80");
395 			break;
396 		case AC_PINCTL_VREF_100:
397 			snd_iprintf(buffer, " VREF_100");
398 			break;
399 		}
400 	}
401 	snd_iprintf(buffer, "\n");
402 }
403 
404 static void print_vol_knob(struct snd_info_buffer *buffer,
405 			   struct hda_codec *codec, hda_nid_t nid)
406 {
407 	unsigned int cap = param_read(codec, nid, AC_PAR_VOL_KNB_CAP);
408 	snd_iprintf(buffer, "  Volume-Knob: delta=%d, steps=%d, ",
409 		    (cap >> 7) & 1, cap & 0x7f);
410 	cap = snd_hda_codec_read(codec, nid, 0,
411 				 AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
412 	snd_iprintf(buffer, "direct=%d, val=%d\n",
413 		    (cap >> 7) & 1, cap & 0x7f);
414 }
415 
416 static void print_audio_io(struct snd_info_buffer *buffer,
417 			   struct hda_codec *codec, hda_nid_t nid,
418 			   unsigned int wid_type)
419 {
420 	int conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
421 	snd_iprintf(buffer,
422 		    "  Converter: stream=%d, channel=%d\n",
423 		    (conv & AC_CONV_STREAM) >> AC_CONV_STREAM_SHIFT,
424 		    conv & AC_CONV_CHANNEL);
425 
426 	if (wid_type == AC_WID_AUD_IN && (conv & AC_CONV_CHANNEL) == 0) {
427 		int sdi = snd_hda_codec_read(codec, nid, 0,
428 					     AC_VERB_GET_SDI_SELECT, 0);
429 		snd_iprintf(buffer, "  SDI-Select: %d\n",
430 			    sdi & AC_SDI_SELECT);
431 	}
432 }
433 
434 static void print_digital_conv(struct snd_info_buffer *buffer,
435 			       struct hda_codec *codec, hda_nid_t nid)
436 {
437 	unsigned int digi1 = snd_hda_codec_read(codec, nid, 0,
438 						AC_VERB_GET_DIGI_CONVERT_1, 0);
439 	unsigned char digi2 = digi1 >> 8;
440 	unsigned char digi3 = digi1 >> 16;
441 
442 	snd_iprintf(buffer, "  Digital:");
443 	if (digi1 & AC_DIG1_ENABLE)
444 		snd_iprintf(buffer, " Enabled");
445 	if (digi1 & AC_DIG1_V)
446 		snd_iprintf(buffer, " Validity");
447 	if (digi1 & AC_DIG1_VCFG)
448 		snd_iprintf(buffer, " ValidityCfg");
449 	if (digi1 & AC_DIG1_EMPHASIS)
450 		snd_iprintf(buffer, " Preemphasis");
451 	if (digi1 & AC_DIG1_COPYRIGHT)
452 		snd_iprintf(buffer, " Non-Copyright");
453 	if (digi1 & AC_DIG1_NONAUDIO)
454 		snd_iprintf(buffer, " Non-Audio");
455 	if (digi1 & AC_DIG1_PROFESSIONAL)
456 		snd_iprintf(buffer, " Pro");
457 	if (digi1 & AC_DIG1_LEVEL)
458 		snd_iprintf(buffer, " GenLevel");
459 	if (digi3 & AC_DIG3_KAE)
460 		snd_iprintf(buffer, " KAE");
461 	snd_iprintf(buffer, "\n");
462 	snd_iprintf(buffer, "  Digital category: 0x%x\n",
463 		    digi2 & AC_DIG2_CC);
464 	snd_iprintf(buffer, "  IEC Coding Type: 0x%x\n",
465 			digi3 & AC_DIG3_ICT);
466 }
467 
468 static const char *get_pwr_state(u32 state)
469 {
470 	static const char * const buf[] = {
471 		"D0", "D1", "D2", "D3", "D3cold"
472 	};
473 	if (state < ARRAY_SIZE(buf))
474 		return buf[state];
475 	return "UNKNOWN";
476 }
477 
478 static void print_power_state(struct snd_info_buffer *buffer,
479 			      struct hda_codec *codec, hda_nid_t nid)
480 {
481 	static char *names[] = {
482 		[ilog2(AC_PWRST_D0SUP)]		= "D0",
483 		[ilog2(AC_PWRST_D1SUP)]		= "D1",
484 		[ilog2(AC_PWRST_D2SUP)]		= "D2",
485 		[ilog2(AC_PWRST_D3SUP)]		= "D3",
486 		[ilog2(AC_PWRST_D3COLDSUP)]	= "D3cold",
487 		[ilog2(AC_PWRST_S3D3COLDSUP)]	= "S3D3cold",
488 		[ilog2(AC_PWRST_CLKSTOP)]	= "CLKSTOP",
489 		[ilog2(AC_PWRST_EPSS)]		= "EPSS",
490 	};
491 
492 	int sup = param_read(codec, nid, AC_PAR_POWER_STATE);
493 	int pwr = snd_hda_codec_read(codec, nid, 0,
494 				     AC_VERB_GET_POWER_STATE, 0);
495 	if (sup != -1)
496 		snd_iprintf(buffer, "  Power states: %s\n",
497 			    bits_names(sup, names, ARRAY_SIZE(names)));
498 
499 	snd_iprintf(buffer, "  Power: setting=%s, actual=%s",
500 		    get_pwr_state(pwr & AC_PWRST_SETTING),
501 		    get_pwr_state((pwr & AC_PWRST_ACTUAL) >>
502 				  AC_PWRST_ACTUAL_SHIFT));
503 	if (pwr & AC_PWRST_ERROR)
504 		snd_iprintf(buffer, ", Error");
505 	if (pwr & AC_PWRST_CLK_STOP_OK)
506 		snd_iprintf(buffer, ", Clock-stop-OK");
507 	if (pwr & AC_PWRST_SETTING_RESET)
508 		snd_iprintf(buffer, ", Setting-reset");
509 	snd_iprintf(buffer, "\n");
510 }
511 
512 static void print_unsol_cap(struct snd_info_buffer *buffer,
513 			      struct hda_codec *codec, hda_nid_t nid)
514 {
515 	int unsol = snd_hda_codec_read(codec, nid, 0,
516 				       AC_VERB_GET_UNSOLICITED_RESPONSE, 0);
517 	snd_iprintf(buffer,
518 		    "  Unsolicited: tag=%02x, enabled=%d\n",
519 		    unsol & AC_UNSOL_TAG,
520 		    (unsol & AC_UNSOL_ENABLED) ? 1 : 0);
521 }
522 
523 static inline bool can_dump_coef(struct hda_codec *codec)
524 {
525 	switch (dump_coef) {
526 	case 0: return false;
527 	case 1: return true;
528 	default: return codec->dump_coef;
529 	}
530 }
531 
532 static void print_proc_caps(struct snd_info_buffer *buffer,
533 			    struct hda_codec *codec, hda_nid_t nid)
534 {
535 	unsigned int i, ncoeff, oldindex;
536 	unsigned int proc_caps = param_read(codec, nid, AC_PAR_PROC_CAP);
537 	ncoeff = (proc_caps & AC_PCAP_NUM_COEF) >> AC_PCAP_NUM_COEF_SHIFT;
538 	snd_iprintf(buffer, "  Processing caps: benign=%d, ncoeff=%d\n",
539 		    proc_caps & AC_PCAP_BENIGN, ncoeff);
540 
541 	if (!can_dump_coef(codec))
542 		return;
543 
544 	/* Note: This is racy - another process could run in parallel and change
545 	   the coef index too. */
546 	oldindex = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_COEF_INDEX, 0);
547 	for (i = 0; i < ncoeff; i++) {
548 		unsigned int val;
549 		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, i);
550 		val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_PROC_COEF,
551 					 0);
552 		snd_iprintf(buffer, "    Coeff 0x%02x: 0x%04x\n", i, val);
553 	}
554 	snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, oldindex);
555 }
556 
557 static void print_conn_list(struct snd_info_buffer *buffer,
558 			    struct hda_codec *codec, hda_nid_t nid,
559 			    unsigned int wid_type, hda_nid_t *conn,
560 			    int conn_len)
561 {
562 	int c, curr = -1;
563 	const hda_nid_t *list;
564 	int cache_len;
565 
566 	if (conn_len > 1 &&
567 	    wid_type != AC_WID_AUD_MIX &&
568 	    wid_type != AC_WID_VOL_KNB &&
569 	    wid_type != AC_WID_POWER)
570 		curr = snd_hda_codec_read(codec, nid, 0,
571 					  AC_VERB_GET_CONNECT_SEL, 0);
572 	snd_iprintf(buffer, "  Connection: %d\n", conn_len);
573 	if (conn_len > 0) {
574 		snd_iprintf(buffer, "    ");
575 		for (c = 0; c < conn_len; c++) {
576 			snd_iprintf(buffer, " 0x%02x", conn[c]);
577 			if (c == curr)
578 				snd_iprintf(buffer, "*");
579 		}
580 		snd_iprintf(buffer, "\n");
581 	}
582 
583 	/* Get Cache connections info */
584 	cache_len = snd_hda_get_conn_list(codec, nid, &list);
585 	if (cache_len >= 0 && (cache_len != conn_len ||
586 			      memcmp(list, conn, conn_len) != 0)) {
587 		snd_iprintf(buffer, "  In-driver Connection: %d\n", cache_len);
588 		if (cache_len > 0) {
589 			snd_iprintf(buffer, "    ");
590 			for (c = 0; c < cache_len; c++)
591 				snd_iprintf(buffer, " 0x%02x", list[c]);
592 			snd_iprintf(buffer, "\n");
593 		}
594 	}
595 }
596 
597 static void print_gpio(struct snd_info_buffer *buffer,
598 		       struct hda_codec *codec, hda_nid_t nid)
599 {
600 	unsigned int gpio =
601 		param_read(codec, codec->core.afg, AC_PAR_GPIO_CAP);
602 	unsigned int enable, direction, wake, unsol, sticky, data;
603 	int i, max;
604 	snd_iprintf(buffer, "GPIO: io=%d, o=%d, i=%d, "
605 		    "unsolicited=%d, wake=%d\n",
606 		    gpio & AC_GPIO_IO_COUNT,
607 		    (gpio & AC_GPIO_O_COUNT) >> AC_GPIO_O_COUNT_SHIFT,
608 		    (gpio & AC_GPIO_I_COUNT) >> AC_GPIO_I_COUNT_SHIFT,
609 		    (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
610 		    (gpio & AC_GPIO_WAKE) ? 1 : 0);
611 	max = gpio & AC_GPIO_IO_COUNT;
612 	if (!max || max > 8)
613 		return;
614 	enable = snd_hda_codec_read(codec, nid, 0,
615 				    AC_VERB_GET_GPIO_MASK, 0);
616 	direction = snd_hda_codec_read(codec, nid, 0,
617 				       AC_VERB_GET_GPIO_DIRECTION, 0);
618 	wake = snd_hda_codec_read(codec, nid, 0,
619 				  AC_VERB_GET_GPIO_WAKE_MASK, 0);
620 	unsol  = snd_hda_codec_read(codec, nid, 0,
621 				    AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK, 0);
622 	sticky = snd_hda_codec_read(codec, nid, 0,
623 				    AC_VERB_GET_GPIO_STICKY_MASK, 0);
624 	data = snd_hda_codec_read(codec, nid, 0,
625 				  AC_VERB_GET_GPIO_DATA, 0);
626 	for (i = 0; i < max; ++i)
627 		snd_iprintf(buffer,
628 			    "  IO[%d]: enable=%d, dir=%d, wake=%d, "
629 			    "sticky=%d, data=%d, unsol=%d\n", i,
630 			    (enable & (1<<i)) ? 1 : 0,
631 			    (direction & (1<<i)) ? 1 : 0,
632 			    (wake & (1<<i)) ? 1 : 0,
633 			    (sticky & (1<<i)) ? 1 : 0,
634 			    (data & (1<<i)) ? 1 : 0,
635 			    (unsol & (1<<i)) ? 1 : 0);
636 	/* FIXME: add GPO and GPI pin information */
637 	print_nid_array(buffer, codec, nid, &codec->mixers);
638 	print_nid_array(buffer, codec, nid, &codec->nids);
639 }
640 
641 static void print_device_list(struct snd_info_buffer *buffer,
642 			    struct hda_codec *codec, hda_nid_t nid)
643 {
644 	int i, curr = -1;
645 	u8 dev_list[AC_MAX_DEV_LIST_LEN];
646 	int devlist_len;
647 
648 	devlist_len = snd_hda_get_devices(codec, nid, dev_list,
649 					AC_MAX_DEV_LIST_LEN);
650 	snd_iprintf(buffer, "  Devices: %d\n", devlist_len);
651 	if (devlist_len <= 0)
652 		return;
653 
654 	curr = snd_hda_codec_read(codec, nid, 0,
655 				AC_VERB_GET_DEVICE_SEL, 0);
656 
657 	for (i = 0; i < devlist_len; i++) {
658 		if (i == curr)
659 			snd_iprintf(buffer, "    *");
660 		else
661 			snd_iprintf(buffer, "     ");
662 
663 		snd_iprintf(buffer,
664 			"Dev %02d: PD = %d, ELDV = %d, IA = %d\n", i,
665 			!!(dev_list[i] & AC_DE_PD),
666 			!!(dev_list[i] & AC_DE_ELDV),
667 			!!(dev_list[i] & AC_DE_IA));
668 	}
669 }
670 
671 static void print_codec_core_info(struct hdac_device *codec,
672 				  struct snd_info_buffer *buffer)
673 {
674 	snd_iprintf(buffer, "Codec: ");
675 	if (codec->vendor_name && codec->chip_name)
676 		snd_iprintf(buffer, "%s %s\n",
677 			    codec->vendor_name, codec->chip_name);
678 	else
679 		snd_iprintf(buffer, "Not Set\n");
680 	snd_iprintf(buffer, "Address: %d\n", codec->addr);
681 	if (codec->afg)
682 		snd_iprintf(buffer, "AFG Function Id: 0x%x (unsol %u)\n",
683 			codec->afg_function_id, codec->afg_unsol);
684 	if (codec->mfg)
685 		snd_iprintf(buffer, "MFG Function Id: 0x%x (unsol %u)\n",
686 			codec->mfg_function_id, codec->mfg_unsol);
687 	snd_iprintf(buffer, "Vendor Id: 0x%08x\n", codec->vendor_id);
688 	snd_iprintf(buffer, "Subsystem Id: 0x%08x\n", codec->subsystem_id);
689 	snd_iprintf(buffer, "Revision Id: 0x%x\n", codec->revision_id);
690 
691 	if (codec->mfg)
692 		snd_iprintf(buffer, "Modem Function Group: 0x%x\n", codec->mfg);
693 	else
694 		snd_iprintf(buffer, "No Modem Function Group found\n");
695 }
696 
697 static void print_codec_info(struct snd_info_entry *entry,
698 			     struct snd_info_buffer *buffer)
699 {
700 	struct hda_codec *codec = entry->private_data;
701 	hda_nid_t nid, fg;
702 	int i, nodes;
703 
704 	print_codec_core_info(&codec->core, buffer);
705 	fg = codec->core.afg;
706 	if (!fg)
707 		return;
708 	snd_hda_power_up(codec);
709 	snd_iprintf(buffer, "Default PCM:\n");
710 	print_pcm_caps(buffer, codec, fg);
711 	snd_iprintf(buffer, "Default Amp-In caps: ");
712 	print_amp_caps(buffer, codec, fg, HDA_INPUT);
713 	snd_iprintf(buffer, "Default Amp-Out caps: ");
714 	print_amp_caps(buffer, codec, fg, HDA_OUTPUT);
715 	snd_iprintf(buffer, "State of AFG node 0x%02x:\n", fg);
716 	print_power_state(buffer, codec, fg);
717 
718 	nodes = snd_hda_get_sub_nodes(codec, fg, &nid);
719 	if (! nid || nodes < 0) {
720 		snd_iprintf(buffer, "Invalid AFG subtree\n");
721 		snd_hda_power_down(codec);
722 		return;
723 	}
724 
725 	print_gpio(buffer, codec, fg);
726 	if (codec->proc_widget_hook)
727 		codec->proc_widget_hook(buffer, codec, fg);
728 
729 	for (i = 0; i < nodes; i++, nid++) {
730 		unsigned int wid_caps =
731 			param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
732 		unsigned int wid_type = get_wcaps_type(wid_caps);
733 		hda_nid_t *conn = NULL;
734 		int conn_len = 0;
735 
736 		snd_iprintf(buffer, "Node 0x%02x [%s] wcaps 0x%x:", nid,
737 			    get_wid_type_name(wid_type), wid_caps);
738 		if (wid_caps & AC_WCAP_STEREO) {
739 			unsigned int chans = get_wcaps_channels(wid_caps);
740 			if (chans == 2)
741 				snd_iprintf(buffer, " Stereo");
742 			else
743 				snd_iprintf(buffer, " %d-Channels", chans);
744 		} else
745 			snd_iprintf(buffer, " Mono");
746 		if (wid_caps & AC_WCAP_DIGITAL)
747 			snd_iprintf(buffer, " Digital");
748 		if (wid_caps & AC_WCAP_IN_AMP)
749 			snd_iprintf(buffer, " Amp-In");
750 		if (wid_caps & AC_WCAP_OUT_AMP)
751 			snd_iprintf(buffer, " Amp-Out");
752 		if (wid_caps & AC_WCAP_STRIPE)
753 			snd_iprintf(buffer, " Stripe");
754 		if (wid_caps & AC_WCAP_LR_SWAP)
755 			snd_iprintf(buffer, " R/L");
756 		if (wid_caps & AC_WCAP_CP_CAPS)
757 			snd_iprintf(buffer, " CP");
758 		snd_iprintf(buffer, "\n");
759 
760 		print_nid_array(buffer, codec, nid, &codec->mixers);
761 		print_nid_array(buffer, codec, nid, &codec->nids);
762 		print_nid_pcms(buffer, codec, nid);
763 
764 		/* volume knob is a special widget that always have connection
765 		 * list
766 		 */
767 		if (wid_type == AC_WID_VOL_KNB)
768 			wid_caps |= AC_WCAP_CONN_LIST;
769 
770 		if (wid_caps & AC_WCAP_CONN_LIST) {
771 			conn_len = snd_hda_get_num_raw_conns(codec, nid);
772 			if (conn_len > 0) {
773 				conn = kmalloc(sizeof(hda_nid_t) * conn_len,
774 					       GFP_KERNEL);
775 				if (!conn)
776 					return;
777 				if (snd_hda_get_raw_connections(codec, nid, conn,
778 								conn_len) < 0)
779 					conn_len = 0;
780 			}
781 		}
782 
783 		if (wid_caps & AC_WCAP_IN_AMP) {
784 			snd_iprintf(buffer, "  Amp-In caps: ");
785 			print_amp_caps(buffer, codec, nid, HDA_INPUT);
786 			snd_iprintf(buffer, "  Amp-In vals: ");
787 			if (wid_type == AC_WID_PIN ||
788 			    (codec->single_adc_amp &&
789 			     wid_type == AC_WID_AUD_IN))
790 				print_amp_vals(buffer, codec, nid, HDA_INPUT,
791 					       wid_caps, 1);
792 			else
793 				print_amp_vals(buffer, codec, nid, HDA_INPUT,
794 					       wid_caps, conn_len);
795 		}
796 		if (wid_caps & AC_WCAP_OUT_AMP) {
797 			snd_iprintf(buffer, "  Amp-Out caps: ");
798 			print_amp_caps(buffer, codec, nid, HDA_OUTPUT);
799 			snd_iprintf(buffer, "  Amp-Out vals: ");
800 			if (wid_type == AC_WID_PIN &&
801 			    codec->pin_amp_workaround)
802 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
803 					       wid_caps, conn_len);
804 			else
805 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
806 					       wid_caps, 1);
807 		}
808 
809 		switch (wid_type) {
810 		case AC_WID_PIN: {
811 			int supports_vref;
812 			print_pin_caps(buffer, codec, nid, &supports_vref);
813 			print_pin_ctls(buffer, codec, nid, supports_vref);
814 			break;
815 		}
816 		case AC_WID_VOL_KNB:
817 			print_vol_knob(buffer, codec, nid);
818 			break;
819 		case AC_WID_AUD_OUT:
820 		case AC_WID_AUD_IN:
821 			print_audio_io(buffer, codec, nid, wid_type);
822 			if (wid_caps & AC_WCAP_DIGITAL)
823 				print_digital_conv(buffer, codec, nid);
824 			if (wid_caps & AC_WCAP_FORMAT_OVRD) {
825 				snd_iprintf(buffer, "  PCM:\n");
826 				print_pcm_caps(buffer, codec, nid);
827 			}
828 			break;
829 		}
830 
831 		if (wid_caps & AC_WCAP_UNSOL_CAP)
832 			print_unsol_cap(buffer, codec, nid);
833 
834 		if (wid_caps & AC_WCAP_POWER)
835 			print_power_state(buffer, codec, nid);
836 
837 		if (wid_caps & AC_WCAP_DELAY)
838 			snd_iprintf(buffer, "  Delay: %d samples\n",
839 				    (wid_caps & AC_WCAP_DELAY) >>
840 				    AC_WCAP_DELAY_SHIFT);
841 
842 		if (wid_type == AC_WID_PIN && codec->dp_mst)
843 			print_device_list(buffer, codec, nid);
844 
845 		if (wid_caps & AC_WCAP_CONN_LIST)
846 			print_conn_list(buffer, codec, nid, wid_type,
847 					conn, conn_len);
848 
849 		if (wid_caps & AC_WCAP_PROC_WID)
850 			print_proc_caps(buffer, codec, nid);
851 
852 		if (codec->proc_widget_hook)
853 			codec->proc_widget_hook(buffer, codec, nid);
854 
855 		kfree(conn);
856 	}
857 	snd_hda_power_down(codec);
858 }
859 
860 /*
861  * create a proc read
862  */
863 int snd_hda_codec_proc_new(struct hda_codec *codec)
864 {
865 	char name[32];
866 	struct snd_info_entry *entry;
867 	int err;
868 
869 	snprintf(name, sizeof(name), "codec#%d", codec->core.addr);
870 	err = snd_card_proc_new(codec->card, name, &entry);
871 	if (err < 0)
872 		return err;
873 
874 	snd_info_set_text_ops(entry, codec, print_codec_info);
875 	return 0;
876 }
877 
878