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i2c-eg20t: change timeout value 50msec to 1000msec
[zen-stable.git] / sound / pci / hda / hda_generic.c
blob431bf868711ec1fc1749c3910d940822200b1da9
1 /*
2 * Universal Interface for Intel High Definition Audio Codec
3 *
4 * Generic widget tree parser
5 *
6 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
7 *
8 * This driver is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This driver is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23 #include <linux/init.h>
24 #include <linux/slab.h>
25 #include <linux/export.h>
26 #include <sound/core.h>
27 #include "hda_codec.h"
28 #include "hda_local.h"
29
30 /* widget node for parsing */
31 struct hda_gnode {
32 hda_nid_t nid; /* NID of this widget */
33 unsigned short nconns; /* number of input connections */
34 hda_nid_t *conn_list;
35 hda_nid_t slist[2]; /* temporay list */
36 unsigned int wid_caps; /* widget capabilities */
37 unsigned char type; /* widget type */
38 unsigned char pin_ctl; /* pin controls */
39 unsigned char checked; /* the flag indicates that the node is already parsed */
40 unsigned int pin_caps; /* pin widget capabilities */
41 unsigned int def_cfg; /* default configuration */
42 unsigned int amp_out_caps; /* AMP out capabilities */
43 unsigned int amp_in_caps; /* AMP in capabilities */
44 struct list_head list;
45 };
46
47 /* patch-specific record */
48
49 #define MAX_PCM_VOLS 2
50 struct pcm_vol {
51 struct hda_gnode *node; /* Node for PCM volume */
52 unsigned int index; /* connection of PCM volume */
53 };
54
55 struct hda_gspec {
56 struct hda_gnode *dac_node[2]; /* DAC node */
57 struct hda_gnode *out_pin_node[2]; /* Output pin (Line-Out) node */
58 struct pcm_vol pcm_vol[MAX_PCM_VOLS]; /* PCM volumes */
59 unsigned int pcm_vol_nodes; /* number of PCM volumes */
60
61 struct hda_gnode *adc_node; /* ADC node */
62 struct hda_gnode *cap_vol_node; /* Node for capture volume */
63 unsigned int cur_cap_src; /* current capture source */
64 struct hda_input_mux input_mux;
65
66 unsigned int def_amp_in_caps;
67 unsigned int def_amp_out_caps;
68
69 struct hda_pcm pcm_rec; /* PCM information */
70
71 struct list_head nid_list; /* list of widgets */
72
73 #ifdef CONFIG_SND_HDA_POWER_SAVE
74 #define MAX_LOOPBACK_AMPS 7
75 struct hda_loopback_check loopback;
76 int num_loopbacks;
77 struct hda_amp_list loopback_list[MAX_LOOPBACK_AMPS + 1];
78 #endif
79 };
80
81 /*
82 * retrieve the default device type from the default config value
83 */
84 #define defcfg_type(node) (((node)->def_cfg & AC_DEFCFG_DEVICE) >> \
85 AC_DEFCFG_DEVICE_SHIFT)
86 #define defcfg_location(node) (((node)->def_cfg & AC_DEFCFG_LOCATION) >> \
87 AC_DEFCFG_LOCATION_SHIFT)
88 #define defcfg_port_conn(node) (((node)->def_cfg & AC_DEFCFG_PORT_CONN) >> \
89 AC_DEFCFG_PORT_CONN_SHIFT)
90
91 /*
92 * destructor
93 */
94 static void snd_hda_generic_free(struct hda_codec *codec)
95 {
96 struct hda_gspec *spec = codec->spec;
97 struct hda_gnode *node, *n;
98
99 if (! spec)
100 return;
101 /* free all widgets */
102 list_for_each_entry_safe(node, n, &spec->nid_list, list) {
103 if (node->conn_list != node->slist)
104 kfree(node->conn_list);
105 kfree(node);
106 }
107 kfree(spec);
108 }
109
110
111 /*
112 * add a new widget node and read its attributes
113 */
114 static int add_new_node(struct hda_codec *codec, struct hda_gspec *spec, hda_nid_t nid)
115 {
116 struct hda_gnode *node;
117 int nconns;
118 hda_nid_t conn_list[HDA_MAX_CONNECTIONS];
119
120 node = kzalloc(sizeof(*node), GFP_KERNEL);
121 if (node == NULL)
122 return -ENOMEM;
123 node->nid = nid;
124 node->wid_caps = get_wcaps(codec, nid);
125 node->type = get_wcaps_type(node->wid_caps);
126 if (node->wid_caps & AC_WCAP_CONN_LIST) {
127 nconns = snd_hda_get_connections(codec, nid, conn_list,
128 HDA_MAX_CONNECTIONS);
129 if (nconns < 0) {
130 kfree(node);
131 return nconns;
132 }
133 } else {
134 nconns = 0;
135 }
136 if (nconns <= ARRAY_SIZE(node->slist))
137 node->conn_list = node->slist;
138 else {
139 node->conn_list = kmalloc(sizeof(hda_nid_t) * nconns,
140 GFP_KERNEL);
141 if (! node->conn_list) {
142 snd_printk(KERN_ERR "hda-generic: cannot malloc\n");
143 kfree(node);
144 return -ENOMEM;
145 }
146 }
147 memcpy(node->conn_list, conn_list, nconns * sizeof(hda_nid_t));
148 node->nconns = nconns;
149
150 if (node->type == AC_WID_PIN) {
151 node->pin_caps = snd_hda_query_pin_caps(codec, node->nid);
152 node->pin_ctl = snd_hda_codec_read(codec, node->nid, 0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
153 node->def_cfg = snd_hda_codec_get_pincfg(codec, node->nid);
154 }
155
156 if (node->wid_caps & AC_WCAP_OUT_AMP) {
157 if (node->wid_caps & AC_WCAP_AMP_OVRD)
158 node->amp_out_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_OUT_CAP);
159 if (! node->amp_out_caps)
160 node->amp_out_caps = spec->def_amp_out_caps;
161 }
162 if (node->wid_caps & AC_WCAP_IN_AMP) {
163 if (node->wid_caps & AC_WCAP_AMP_OVRD)
164 node->amp_in_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_IN_CAP);
165 if (! node->amp_in_caps)
166 node->amp_in_caps = spec->def_amp_in_caps;
167 }
168 list_add_tail(&node->list, &spec->nid_list);
169 return 0;
170 }
171
172 /*
173 * build the AFG subtree
174 */
175 static int build_afg_tree(struct hda_codec *codec)
176 {
177 struct hda_gspec *spec = codec->spec;
178 int i, nodes, err;
179 hda_nid_t nid;
180
181 if (snd_BUG_ON(!spec))
182 return -EINVAL;
183
184 spec->def_amp_out_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_OUT_CAP);
185 spec->def_amp_in_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_IN_CAP);
186
187 nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
188 if (! nid || nodes < 0) {
189 printk(KERN_ERR "Invalid AFG subtree\n");
190 return -EINVAL;
191 }
192
193 /* parse all nodes belonging to the AFG */
194 for (i = 0; i < nodes; i++, nid++) {
195 if ((err = add_new_node(codec, spec, nid)) < 0)
196 return err;
197 }
198
199 return 0;
200 }
201
202
203 /*
204 * look for the node record for the given NID
205 */
206 /* FIXME: should avoid the braindead linear search */
207 static struct hda_gnode *hda_get_node(struct hda_gspec *spec, hda_nid_t nid)
208 {
209 struct hda_gnode *node;
210
211 list_for_each_entry(node, &spec->nid_list, list) {
212 if (node->nid == nid)
213 return node;
214 }
215 return NULL;
216 }
217
218 /*
219 * unmute (and set max vol) the output amplifier
220 */
221 static int unmute_output(struct hda_codec *codec, struct hda_gnode *node)
222 {
223 unsigned int val, ofs;
224 snd_printdd("UNMUTE OUT: NID=0x%x\n", node->nid);
225 val = (node->amp_out_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
226 ofs = (node->amp_out_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT;
227 if (val >= ofs)
228 val -= ofs;
229 snd_hda_codec_amp_stereo(codec, node->nid, HDA_OUTPUT, 0, 0xff, val);
230 return 0;
231 }
232
233 /*
234 * unmute (and set max vol) the input amplifier
235 */
236 static int unmute_input(struct hda_codec *codec, struct hda_gnode *node, unsigned int index)
237 {
238 unsigned int val, ofs;
239 snd_printdd("UNMUTE IN: NID=0x%x IDX=0x%x\n", node->nid, index);
240 val = (node->amp_in_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
241 ofs = (node->amp_in_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT;
242 if (val >= ofs)
243 val -= ofs;
244 snd_hda_codec_amp_stereo(codec, node->nid, HDA_INPUT, index, 0xff, val);
245 return 0;
246 }
247
248 /*
249 * select the input connection of the given node.
250 */
251 static int select_input_connection(struct hda_codec *codec, struct hda_gnode *node,
252 unsigned int index)
253 {
254 snd_printdd("CONNECT: NID=0x%x IDX=0x%x\n", node->nid, index);
255 return snd_hda_codec_write_cache(codec, node->nid, 0,
256 AC_VERB_SET_CONNECT_SEL, index);
257 }
258
259 /*
260 * clear checked flag of each node in the node list
261 */
262 static void clear_check_flags(struct hda_gspec *spec)
263 {
264 struct hda_gnode *node;
265
266 list_for_each_entry(node, &spec->nid_list, list) {
267 node->checked = 0;
268 }
269 }
270
271 /*
272 * parse the output path recursively until reach to an audio output widget
273 *
274 * returns 0 if not found, 1 if found, or a negative error code.
275 */
276 static int parse_output_path(struct hda_codec *codec, struct hda_gspec *spec,
277 struct hda_gnode *node, int dac_idx)
278 {
279 int i, err;
280 struct hda_gnode *child;
281
282 if (node->checked)
283 return 0;
284
285 node->checked = 1;
286 if (node->type == AC_WID_AUD_OUT) {
287 if (node->wid_caps & AC_WCAP_DIGITAL) {
288 snd_printdd("Skip Digital OUT node %x\n", node->nid);
289 return 0;
290 }
291 snd_printdd("AUD_OUT found %x\n", node->nid);
292 if (spec->dac_node[dac_idx]) {
293 /* already DAC node is assigned, just unmute & connect */
294 return node == spec->dac_node[dac_idx];
295 }
296 spec->dac_node[dac_idx] = node;
297 if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
298 spec->pcm_vol_nodes < MAX_PCM_VOLS) {
299 spec->pcm_vol[spec->pcm_vol_nodes].node = node;
300 spec->pcm_vol[spec->pcm_vol_nodes].index = 0;
301 spec->pcm_vol_nodes++;
302 }
303 return 1; /* found */
304 }
305
306 for (i = 0; i < node->nconns; i++) {
307 child = hda_get_node(spec, node->conn_list[i]);
308 if (! child)
309 continue;
310 err = parse_output_path(codec, spec, child, dac_idx);
311 if (err < 0)
312 return err;
313 else if (err > 0) {
314 /* found one,
315 * select the path, unmute both input and output
316 */
317 if (node->nconns > 1)
318 select_input_connection(codec, node, i);
319 unmute_input(codec, node, i);
320 unmute_output(codec, node);
321 if (spec->dac_node[dac_idx] &&
322 spec->pcm_vol_nodes < MAX_PCM_VOLS &&
323 !(spec->dac_node[dac_idx]->wid_caps &
324 AC_WCAP_OUT_AMP)) {
325 if ((node->wid_caps & AC_WCAP_IN_AMP) ||
326 (node->wid_caps & AC_WCAP_OUT_AMP)) {
327 int n = spec->pcm_vol_nodes;
328 spec->pcm_vol[n].node = node;
329 spec->pcm_vol[n].index = i;
330 spec->pcm_vol_nodes++;
331 }
332 }
333 return 1;
334 }
335 }
336 return 0;
337 }
338
339 /*
340 * Look for the output PIN widget with the given jack type
341 * and parse the output path to that PIN.
342 *
343 * Returns the PIN node when the path to DAC is established.
344 */
345 static struct hda_gnode *parse_output_jack(struct hda_codec *codec,
346 struct hda_gspec *spec,
347 int jack_type)
348 {
349 struct hda_gnode *node;
350 int err;
351
352 list_for_each_entry(node, &spec->nid_list, list) {
353 if (node->type != AC_WID_PIN)
354 continue;
355 /* output capable? */
356 if (! (node->pin_caps & AC_PINCAP_OUT))
357 continue;
358 if (defcfg_port_conn(node) == AC_JACK_PORT_NONE)
359 continue; /* unconnected */
360 if (jack_type >= 0) {
361 if (jack_type != defcfg_type(node))
362 continue;
363 if (node->wid_caps & AC_WCAP_DIGITAL)
364 continue; /* skip SPDIF */
365 } else {
366 /* output as default? */
367 if (! (node->pin_ctl & AC_PINCTL_OUT_EN))
368 continue;
369 }
370 clear_check_flags(spec);
371 err = parse_output_path(codec, spec, node, 0);
372 if (err < 0)
373 return NULL;
374 if (! err && spec->out_pin_node[0]) {
375 err = parse_output_path(codec, spec, node, 1);
376 if (err < 0)
377 return NULL;
378 }
379 if (err > 0) {
380 /* unmute the PIN output */
381 unmute_output(codec, node);
382 /* set PIN-Out enable */
383 snd_hda_codec_write_cache(codec, node->nid, 0,
384 AC_VERB_SET_PIN_WIDGET_CONTROL,
385 AC_PINCTL_OUT_EN |
386 ((node->pin_caps & AC_PINCAP_HP_DRV) ?
387 AC_PINCTL_HP_EN : 0));
388 return node;
389 }
390 }
391 return NULL;
392 }
393
394
395 /*
396 * parse outputs
397 */
398 static int parse_output(struct hda_codec *codec)
399 {
400 struct hda_gspec *spec = codec->spec;
401 struct hda_gnode *node;
402
403 /*
404 * Look for the output PIN widget
405 */
406 /* first, look for the line-out pin */
407 node = parse_output_jack(codec, spec, AC_JACK_LINE_OUT);
408 if (node) /* found, remember the PIN node */
409 spec->out_pin_node[0] = node;
410 else {
411 /* if no line-out is found, try speaker out */
412 node = parse_output_jack(codec, spec, AC_JACK_SPEAKER);
413 if (node)
414 spec->out_pin_node[0] = node;
415 }
416 /* look for the HP-out pin */
417 node = parse_output_jack(codec, spec, AC_JACK_HP_OUT);
418 if (node) {
419 if (! spec->out_pin_node[0])
420 spec->out_pin_node[0] = node;
421 else
422 spec->out_pin_node[1] = node;
423 }
424
425 if (! spec->out_pin_node[0]) {
426 /* no line-out or HP pins found,
427 * then choose for the first output pin
428 */
429 spec->out_pin_node[0] = parse_output_jack(codec, spec, -1);
430 if (! spec->out_pin_node[0])
431 snd_printd("hda_generic: no proper output path found\n");
432 }
433
434 return 0;
435 }
436
437 /*
438 * input MUX
439 */
440
441 /* control callbacks */
442 static int capture_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
443 {
444 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
445 struct hda_gspec *spec = codec->spec;
446 return snd_hda_input_mux_info(&spec->input_mux, uinfo);
447 }
448
449 static int capture_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
450 {
451 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
452 struct hda_gspec *spec = codec->spec;
453
454 ucontrol->value.enumerated.item[0] = spec->cur_cap_src;
455 return 0;
456 }
457
458 static int capture_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
459 {
460 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
461 struct hda_gspec *spec = codec->spec;
462 return snd_hda_input_mux_put(codec, &spec->input_mux, ucontrol,
463 spec->adc_node->nid, &spec->cur_cap_src);
464 }
465
466 /*
467 * return the string name of the given input PIN widget
468 */
469 static const char *get_input_type(struct hda_gnode *node, unsigned int *pinctl)
470 {
471 unsigned int location = defcfg_location(node);
472 switch (defcfg_type(node)) {
473 case AC_JACK_LINE_IN:
474 if ((location & 0x0f) == AC_JACK_LOC_FRONT)
475 return "Front Line";
476 return "Line";
477 case AC_JACK_CD:
478 #if 0
479 if (pinctl)
480 *pinctl |= AC_PINCTL_VREF_GRD;
481 #endif
482 return "CD";
483 case AC_JACK_AUX:
484 if ((location & 0x0f) == AC_JACK_LOC_FRONT)
485 return "Front Aux";
486 return "Aux";
487 case AC_JACK_MIC_IN:
488 if (pinctl &&
489 (node->pin_caps &
490 (AC_PINCAP_VREF_80 << AC_PINCAP_VREF_SHIFT)))
491 *pinctl |= AC_PINCTL_VREF_80;
492 if ((location & 0x0f) == AC_JACK_LOC_FRONT)
493 return "Front Mic";
494 return "Mic";
495 case AC_JACK_SPDIF_IN:
496 return "SPDIF";
497 case AC_JACK_DIG_OTHER_IN:
498 return "Digital";
499 }
500 return NULL;
501 }
502
503 /*
504 * parse the nodes recursively until reach to the input PIN
505 *
506 * returns 0 if not found, 1 if found, or a negative error code.
507 */
508 static int parse_adc_sub_nodes(struct hda_codec *codec, struct hda_gspec *spec,
509 struct hda_gnode *node, int idx)
510 {
511 int i, err;
512 unsigned int pinctl;
513 const char *type;
514
515 if (node->checked)
516 return 0;
517
518 node->checked = 1;
519 if (node->type != AC_WID_PIN) {
520 for (i = 0; i < node->nconns; i++) {
521 struct hda_gnode *child;
522 child = hda_get_node(spec, node->conn_list[i]);
523 if (! child)
524 continue;
525 err = parse_adc_sub_nodes(codec, spec, child, idx);
526 if (err < 0)
527 return err;
528 if (err > 0) {
529 /* found one,
530 * select the path, unmute both input and output
531 */
532 if (node->nconns > 1)
533 select_input_connection(codec, node, i);
534 unmute_input(codec, node, i);
535 unmute_output(codec, node);
536 return err;
537 }
538 }
539 return 0;
540 }
541
542 /* input capable? */
543 if (! (node->pin_caps & AC_PINCAP_IN))
544 return 0;
545
546 if (defcfg_port_conn(node) == AC_JACK_PORT_NONE)
547 return 0; /* unconnected */
548
549 if (node->wid_caps & AC_WCAP_DIGITAL)
550 return 0; /* skip SPDIF */
551
552 if (spec->input_mux.num_items >= HDA_MAX_NUM_INPUTS) {
553 snd_printk(KERN_ERR "hda_generic: Too many items for capture\n");
554 return -EINVAL;
555 }
556
557 pinctl = AC_PINCTL_IN_EN;
558 /* create a proper capture source label */
559 type = get_input_type(node, &pinctl);
560 if (! type) {
561 /* input as default? */
562 if (! (node->pin_ctl & AC_PINCTL_IN_EN))
563 return 0;
564 type = "Input";
565 }
566 snd_hda_add_imux_item(&spec->input_mux, type, idx, NULL);
567
568 /* unmute the PIN external input */
569 unmute_input(codec, node, 0); /* index = 0? */
570 /* set PIN-In enable */
571 snd_hda_codec_write_cache(codec, node->nid, 0,
572 AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl);
573
574 return 1; /* found */
575 }
576
577 /*
578 * parse input
579 */
580 static int parse_input_path(struct hda_codec *codec, struct hda_gnode *adc_node)
581 {
582 struct hda_gspec *spec = codec->spec;
583 struct hda_gnode *node;
584 int i, err;
585
586 snd_printdd("AUD_IN = %x\n", adc_node->nid);
587 clear_check_flags(spec);
588
589 // awk added - fixed no recording due to muted widget
590 unmute_input(codec, adc_node, 0);
591
592 /*
593 * check each connection of the ADC
594 * if it reaches to a proper input PIN, add the path as the
595 * input path.
596 */
597 /* first, check the direct connections to PIN widgets */
598 for (i = 0; i < adc_node->nconns; i++) {
599 node = hda_get_node(spec, adc_node->conn_list[i]);
600 if (node && node->type == AC_WID_PIN) {
601 err = parse_adc_sub_nodes(codec, spec, node, i);
602 if (err < 0)
603 return err;
604 }
605 }
606 /* ... then check the rests, more complicated connections */
607 for (i = 0; i < adc_node->nconns; i++) {
608 node = hda_get_node(spec, adc_node->conn_list[i]);
609 if (node && node->type != AC_WID_PIN) {
610 err = parse_adc_sub_nodes(codec, spec, node, i);
611 if (err < 0)
612 return err;
613 }
614 }
615
616 if (! spec->input_mux.num_items)
617 return 0; /* no input path found... */
618
619 snd_printdd("[Capture Source] NID=0x%x, #SRC=%d\n", adc_node->nid, spec->input_mux.num_items);
620 for (i = 0; i < spec->input_mux.num_items; i++)
621 snd_printdd(" [%s] IDX=0x%x\n", spec->input_mux.items[i].label,
622 spec->input_mux.items[i].index);
623
624 spec->adc_node = adc_node;
625 return 1;
626 }
627
628 /*
629 * parse input
630 */
631 static int parse_input(struct hda_codec *codec)
632 {
633 struct hda_gspec *spec = codec->spec;
634 struct hda_gnode *node;
635 int err;
636
637 /*
638 * At first we look for an audio input widget.
639 * If it reaches to certain input PINs, we take it as the
640 * input path.
641 */
642 list_for_each_entry(node, &spec->nid_list, list) {
643 if (node->wid_caps & AC_WCAP_DIGITAL)
644 continue; /* skip SPDIF */
645 if (node->type == AC_WID_AUD_IN) {
646 err = parse_input_path(codec, node);
647 if (err < 0)
648 return err;
649 else if (err > 0)
650 return 0;
651 }
652 }
653 snd_printd("hda_generic: no proper input path found\n");
654 return 0;
655 }
656
657 #ifdef CONFIG_SND_HDA_POWER_SAVE
658 static void add_input_loopback(struct hda_codec *codec, hda_nid_t nid,
659 int dir, int idx)
660 {
661 struct hda_gspec *spec = codec->spec;
662 struct hda_amp_list *p;
663
664 if (spec->num_loopbacks >= MAX_LOOPBACK_AMPS) {
665 snd_printk(KERN_ERR "hda_generic: Too many loopback ctls\n");
666 return;
667 }
668 p = &spec->loopback_list[spec->num_loopbacks++];
669 p->nid = nid;
670 p->dir = dir;
671 p->idx = idx;
672 spec->loopback.amplist = spec->loopback_list;
673 }
674 #else
675 #define add_input_loopback(codec,nid,dir,idx)
676 #endif
677
678 /*
679 * create mixer controls if possible
680 */
681 static int create_mixer(struct hda_codec *codec, struct hda_gnode *node,
682 unsigned int index, const char *type,
683 const char *dir_sfx, int is_loopback)
684 {
685 char name[32];
686 int err;
687 int created = 0;
688 struct snd_kcontrol_new knew;
689
690 if (type)
691 sprintf(name, "%s %s Switch", type, dir_sfx);
692 else
693 sprintf(name, "%s Switch", dir_sfx);
694 if ((node->wid_caps & AC_WCAP_IN_AMP) &&
695 (node->amp_in_caps & AC_AMPCAP_MUTE)) {
696 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, index, HDA_INPUT);
697 if (is_loopback)
698 add_input_loopback(codec, node->nid, HDA_INPUT, index);
699 snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index);
700 err = snd_hda_ctl_add(codec, node->nid,
701 snd_ctl_new1(&knew, codec));
702 if (err < 0)
703 return err;
704 created = 1;
705 } else if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
706 (node->amp_out_caps & AC_AMPCAP_MUTE)) {
707 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, 0, HDA_OUTPUT);
708 if (is_loopback)
709 add_input_loopback(codec, node->nid, HDA_OUTPUT, 0);
710 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid);
711 err = snd_hda_ctl_add(codec, node->nid,
712 snd_ctl_new1(&knew, codec));
713 if (err < 0)
714 return err;
715 created = 1;
716 }
717
718 if (type)
719 sprintf(name, "%s %s Volume", type, dir_sfx);
720 else
721 sprintf(name, "%s Volume", dir_sfx);
722 if ((node->wid_caps & AC_WCAP_IN_AMP) &&
723 (node->amp_in_caps & AC_AMPCAP_NUM_STEPS)) {
724 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, index, HDA_INPUT);
725 snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index);
726 err = snd_hda_ctl_add(codec, node->nid,
727 snd_ctl_new1(&knew, codec));
728 if (err < 0)
729 return err;
730 created = 1;
731 } else if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
732 (node->amp_out_caps & AC_AMPCAP_NUM_STEPS)) {
733 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, 0, HDA_OUTPUT);
734 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid);
735 err = snd_hda_ctl_add(codec, node->nid,
736 snd_ctl_new1(&knew, codec));
737 if (err < 0)
738 return err;
739 created = 1;
740 }
741
742 return created;
743 }
744
745 /*
746 * check whether the controls with the given name and direction suffix already exist
747 */
748 static int check_existing_control(struct hda_codec *codec, const char *type, const char *dir)
749 {
750 struct snd_ctl_elem_id id;
751 memset(&id, 0, sizeof(id));
752 sprintf(id.name, "%s %s Volume", type, dir);
753 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
754 if (snd_ctl_find_id(codec->bus->card, &id))
755 return 1;
756 sprintf(id.name, "%s %s Switch", type, dir);
757 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
758 if (snd_ctl_find_id(codec->bus->card, &id))
759 return 1;
760 return 0;
761 }
762
763 /*
764 * build output mixer controls
765 */
766 static int create_output_mixers(struct hda_codec *codec,
767 const char * const *names)
768 {
769 struct hda_gspec *spec = codec->spec;
770 int i, err;
771
772 for (i = 0; i < spec->pcm_vol_nodes; i++) {
773 err = create_mixer(codec, spec->pcm_vol[i].node,
774 spec->pcm_vol[i].index,
775 names[i], "Playback", 0);
776 if (err < 0)
777 return err;
778 }
779 return 0;
780 }
781
782 static int build_output_controls(struct hda_codec *codec)
783 {
784 struct hda_gspec *spec = codec->spec;
785 static const char * const types_speaker[] = { "Speaker", "Headphone" };
786 static const char * const types_line[] = { "Front", "Headphone" };
787
788 switch (spec->pcm_vol_nodes) {
789 case 1:
790 return create_mixer(codec, spec->pcm_vol[0].node,
791 spec->pcm_vol[0].index,
792 "Master", "Playback", 0);
793 case 2:
794 if (defcfg_type(spec->out_pin_node[0]) == AC_JACK_SPEAKER)
795 return create_output_mixers(codec, types_speaker);
796 else
797 return create_output_mixers(codec, types_line);
798 }
799 return 0;
800 }
801
802 /* create capture volume/switch */
803 static int build_input_controls(struct hda_codec *codec)
804 {
805 struct hda_gspec *spec = codec->spec;
806 struct hda_gnode *adc_node = spec->adc_node;
807 int i, err;
808 static struct snd_kcontrol_new cap_sel = {
809 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
810 .name = "Capture Source",
811 .info = capture_source_info,
812 .get = capture_source_get,
813 .put = capture_source_put,
814 };
815
816 if (! adc_node || ! spec->input_mux.num_items)
817 return 0; /* not found */
818
819 spec->cur_cap_src = 0;
820 select_input_connection(codec, adc_node,
821 spec->input_mux.items[0].index);
822
823 /* create capture volume and switch controls if the ADC has an amp */
824 /* do we have only a single item? */
825 if (spec->input_mux.num_items == 1) {
826 err = create_mixer(codec, adc_node,
827 spec->input_mux.items[0].index,
828 NULL, "Capture", 0);
829 if (err < 0)
830 return err;
831 return 0;
832 }
833
834 /* create input MUX if multiple sources are available */
835 err = snd_hda_ctl_add(codec, spec->adc_node->nid,
836 snd_ctl_new1(&cap_sel, codec));
837 if (err < 0)
838 return err;
839
840 /* no volume control? */
841 if (! (adc_node->wid_caps & AC_WCAP_IN_AMP) ||
842 ! (adc_node->amp_in_caps & AC_AMPCAP_NUM_STEPS))
843 return 0;
844
845 for (i = 0; i < spec->input_mux.num_items; i++) {
846 struct snd_kcontrol_new knew;
847 char name[32];
848 sprintf(name, "%s Capture Volume",
849 spec->input_mux.items[i].label);
850 knew = (struct snd_kcontrol_new)
851 HDA_CODEC_VOLUME(name, adc_node->nid,
852 spec->input_mux.items[i].index,
853 HDA_INPUT);
854 err = snd_hda_ctl_add(codec, adc_node->nid,
855 snd_ctl_new1(&knew, codec));
856 if (err < 0)
857 return err;
858 }
859
860 return 0;
861 }
862
863
864 /*
865 * parse the nodes recursively until reach to the output PIN.
866 *
867 * returns 0 - if not found,
868 * 1 - if found, but no mixer is created
869 * 2 - if found and mixer was already created, (just skip)
870 * a negative error code
871 */
872 static int parse_loopback_path(struct hda_codec *codec, struct hda_gspec *spec,
873 struct hda_gnode *node, struct hda_gnode *dest_node,
874 const char *type)
875 {
876 int i, err;
877
878 if (node->checked)
879 return 0;
880
881 node->checked = 1;
882 if (node == dest_node) {
883 /* loopback connection found */
884 return 1;
885 }
886
887 for (i = 0; i < node->nconns; i++) {
888 struct hda_gnode *child = hda_get_node(spec, node->conn_list[i]);
889 if (! child)
890 continue;
891 err = parse_loopback_path(codec, spec, child, dest_node, type);
892 if (err < 0)
893 return err;
894 else if (err >= 1) {
895 if (err == 1) {
896 err = create_mixer(codec, node, i, type,
897 "Playback", 1);
898 if (err < 0)
899 return err;
900 if (err > 0)
901 return 2; /* ok, created */
902 /* not created, maybe in the lower path */
903 err = 1;
904 }
905 /* connect and unmute */
906 if (node->nconns > 1)
907 select_input_connection(codec, node, i);
908 unmute_input(codec, node, i);
909 unmute_output(codec, node);
910 return err;
911 }
912 }
913 return 0;
914 }
915
916 /*
917 * parse the tree and build the loopback controls
918 */
919 static int build_loopback_controls(struct hda_codec *codec)
920 {
921 struct hda_gspec *spec = codec->spec;
922 struct hda_gnode *node;
923 int err;
924 const char *type;
925
926 if (! spec->out_pin_node[0])
927 return 0;
928
929 list_for_each_entry(node, &spec->nid_list, list) {
930 if (node->type != AC_WID_PIN)
931 continue;
932 /* input capable? */
933 if (! (node->pin_caps & AC_PINCAP_IN))
934 return 0;
935 type = get_input_type(node, NULL);
936 if (type) {
937 if (check_existing_control(codec, type, "Playback"))
938 continue;
939 clear_check_flags(spec);
940 err = parse_loopback_path(codec, spec,
941 spec->out_pin_node[0],
942 node, type);
943 if (err < 0)
944 return err;
945 if (! err)
946 continue;
947 }
948 }
949 return 0;
950 }
951
952 /*
953 * build mixer controls
954 */
955 static int build_generic_controls(struct hda_codec *codec)
956 {
957 int err;
958
959 if ((err = build_input_controls(codec)) < 0 ||
960 (err = build_output_controls(codec)) < 0 ||
961 (err = build_loopback_controls(codec)) < 0)
962 return err;
963
964 return 0;
965 }
966
967 /*
968 * PCM
969 */
970 static struct hda_pcm_stream generic_pcm_playback = {
971 .substreams = 1,
972 .channels_min = 2,
973 .channels_max = 2,
974 };
975
976 static int generic_pcm2_prepare(struct hda_pcm_stream *hinfo,
977 struct hda_codec *codec,
978 unsigned int stream_tag,
979 unsigned int format,
980 struct snd_pcm_substream *substream)
981 {
982 struct hda_gspec *spec = codec->spec;
983
984 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
985 snd_hda_codec_setup_stream(codec, spec->dac_node[1]->nid,
986 stream_tag, 0, format);
987 return 0;
988 }
989
990 static int generic_pcm2_cleanup(struct hda_pcm_stream *hinfo,
991 struct hda_codec *codec,
992 struct snd_pcm_substream *substream)
993 {
994 struct hda_gspec *spec = codec->spec;
995
996 snd_hda_codec_cleanup_stream(codec, hinfo->nid);
997 snd_hda_codec_cleanup_stream(codec, spec->dac_node[1]->nid);
998 return 0;
999 }
1000
1001 static int build_generic_pcms(struct hda_codec *codec)
1002 {
1003 struct hda_gspec *spec = codec->spec;
1004 struct hda_pcm *info = &spec->pcm_rec;
1005
1006 if (! spec->dac_node[0] && ! spec->adc_node) {
1007 snd_printd("hda_generic: no PCM found\n");
1008 return 0;
1009 }
1010
1011 codec->num_pcms = 1;
1012 codec->pcm_info = info;
1013
1014 info->name = "HDA Generic";
1015 if (spec->dac_node[0]) {
1016 info->stream[0] = generic_pcm_playback;
1017 info->stream[0].nid = spec->dac_node[0]->nid;
1018 if (spec->dac_node[1]) {
1019 info->stream[0].ops.prepare = generic_pcm2_prepare;
1020 info->stream[0].ops.cleanup = generic_pcm2_cleanup;
1021 }
1022 }
1023 if (spec->adc_node) {
1024 info->stream[1] = generic_pcm_playback;
1025 info->stream[1].nid = spec->adc_node->nid;
1026 }
1027
1028 return 0;
1029 }
1030
1031 #ifdef CONFIG_SND_HDA_POWER_SAVE
1032 static int generic_check_power_status(struct hda_codec *codec, hda_nid_t nid)
1033 {
1034 struct hda_gspec *spec = codec->spec;
1035 return snd_hda_check_amp_list_power(codec, &spec->loopback, nid);
1036 }
1037 #endif
1038
1039
1040 /*
1041 */
1042 static struct hda_codec_ops generic_patch_ops = {
1043 .build_controls = build_generic_controls,
1044 .build_pcms = build_generic_pcms,
1045 .free = snd_hda_generic_free,
1046 #ifdef CONFIG_SND_HDA_POWER_SAVE
1047 .check_power_status = generic_check_power_status,
1048 #endif
1049 };
1050
1051 /*
1052 * the generic parser
1053 */
1054 int snd_hda_parse_generic_codec(struct hda_codec *codec)
1055 {
1056 struct hda_gspec *spec;
1057 int err;
1058
1059 if(!codec->afg)
1060 return 0;
1061
1062 spec = kzalloc(sizeof(*spec), GFP_KERNEL);
1063 if (spec == NULL) {
1064 printk(KERN_ERR "hda_generic: can't allocate spec\n");
1065 return -ENOMEM;
1066 }
1067 codec->spec = spec;
1068 INIT_LIST_HEAD(&spec->nid_list);
1069
1070 if ((err = build_afg_tree(codec)) < 0)
1071 goto error;
1072
1073 if ((err = parse_input(codec)) < 0 ||
1074 (err = parse_output(codec)) < 0)
1075 goto error;
1076
1077 codec->patch_ops = generic_patch_ops;
1078
1079 return 0;
1080
1081 error:
1082 snd_hda_generic_free(codec);
1083 return err;
1084 }
1085 EXPORT_SYMBOL(snd_hda_parse_generic_codec);