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Add linux-next specific files for 20110831
[linux-2.6/next.git] / sound / pci / hda / hda_generic.c
bloba63c54d9d767a4219890c7a40b9741c6ce72da73
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 <sound/core.h>
26 #include "hda_codec.h"
27 #include "hda_local.h"
28
29 /* widget node for parsing */
30 struct hda_gnode {
31 hda_nid_t nid; /* NID of this widget */
32 unsigned short nconns; /* number of input connections */
33 hda_nid_t *conn_list;
34 hda_nid_t slist[2]; /* temporay list */
35 unsigned int wid_caps; /* widget capabilities */
36 unsigned char type; /* widget type */
37 unsigned char pin_ctl; /* pin controls */
38 unsigned char checked; /* the flag indicates that the node is already parsed */
39 unsigned int pin_caps; /* pin widget capabilities */
40 unsigned int def_cfg; /* default configuration */
41 unsigned int amp_out_caps; /* AMP out capabilities */
42 unsigned int amp_in_caps; /* AMP in capabilities */
43 struct list_head list;
44 };
45
46 /* patch-specific record */
47
48 #define MAX_PCM_VOLS 2
49 struct pcm_vol {
50 struct hda_gnode *node; /* Node for PCM volume */
51 unsigned int index; /* connection of PCM volume */
52 };
53
54 struct hda_gspec {
55 struct hda_gnode *dac_node[2]; /* DAC node */
56 struct hda_gnode *out_pin_node[2]; /* Output pin (Line-Out) node */
57 struct pcm_vol pcm_vol[MAX_PCM_VOLS]; /* PCM volumes */
58 unsigned int pcm_vol_nodes; /* number of PCM volumes */
59
60 struct hda_gnode *adc_node; /* ADC node */
61 struct hda_gnode *cap_vol_node; /* Node for capture volume */
62 unsigned int cur_cap_src; /* current capture source */
63 struct hda_input_mux input_mux;
64
65 unsigned int def_amp_in_caps;
66 unsigned int def_amp_out_caps;
67
68 struct hda_pcm pcm_rec; /* PCM information */
69
70 struct list_head nid_list; /* list of widgets */
71
72 #ifdef CONFIG_SND_HDA_POWER_SAVE
73 #define MAX_LOOPBACK_AMPS 7
74 struct hda_loopback_check loopback;
75 int num_loopbacks;
76 struct hda_amp_list loopback_list[MAX_LOOPBACK_AMPS + 1];
77 #endif
78 };
79
80 /*
81 * retrieve the default device type from the default config value
82 */
83 #define defcfg_type(node) (((node)->def_cfg & AC_DEFCFG_DEVICE) >> \
84 AC_DEFCFG_DEVICE_SHIFT)
85 #define defcfg_location(node) (((node)->def_cfg & AC_DEFCFG_LOCATION) >> \
86 AC_DEFCFG_LOCATION_SHIFT)
87 #define defcfg_port_conn(node) (((node)->def_cfg & AC_DEFCFG_PORT_CONN) >> \
88 AC_DEFCFG_PORT_CONN_SHIFT)
89
90 /*
91 * destructor
92 */
93 static void snd_hda_generic_free(struct hda_codec *codec)
94 {
95 struct hda_gspec *spec = codec->spec;
96 struct hda_gnode *node, *n;
97
98 if (! spec)
99 return;
100 /* free all widgets */
101 list_for_each_entry_safe(node, n, &spec->nid_list, list) {
102 if (node->conn_list != node->slist)
103 kfree(node->conn_list);
104 kfree(node);
105 }
106 kfree(spec);
107 }
108
109
110 /*
111 * add a new widget node and read its attributes
112 */
113 static int add_new_node(struct hda_codec *codec, struct hda_gspec *spec, hda_nid_t nid)
114 {
115 struct hda_gnode *node;
116 int nconns;
117 hda_nid_t conn_list[HDA_MAX_CONNECTIONS];
118
119 node = kzalloc(sizeof(*node), GFP_KERNEL);
120 if (node == NULL)
121 return -ENOMEM;
122 node->nid = nid;
123 node->wid_caps = get_wcaps(codec, nid);
124 node->type = get_wcaps_type(node->wid_caps);
125 if (node->wid_caps & AC_WCAP_CONN_LIST) {
126 nconns = snd_hda_get_connections(codec, nid, conn_list,
127 HDA_MAX_CONNECTIONS);
128 if (nconns < 0) {
129 kfree(node);
130 return nconns;
131 }
132 } else {
133 nconns = 0;
134 }
135 if (nconns <= ARRAY_SIZE(node->slist))
136 node->conn_list = node->slist;
137 else {
138 node->conn_list = kmalloc(sizeof(hda_nid_t) * nconns,
139 GFP_KERNEL);
140 if (! node->conn_list) {
141 snd_printk(KERN_ERR "hda-generic: cannot malloc\n");
142 kfree(node);
143 return -ENOMEM;
144 }
145 }
146 memcpy(node->conn_list, conn_list, nconns * sizeof(hda_nid_t));
147 node->nconns = nconns;
148
149 if (node->type == AC_WID_PIN) {
150 node->pin_caps = snd_hda_query_pin_caps(codec, node->nid);
151 node->pin_ctl = snd_hda_codec_read(codec, node->nid, 0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
152 node->def_cfg = snd_hda_codec_get_pincfg(codec, node->nid);
153 }
154
155 if (node->wid_caps & AC_WCAP_OUT_AMP) {
156 if (node->wid_caps & AC_WCAP_AMP_OVRD)
157 node->amp_out_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_OUT_CAP);
158 if (! node->amp_out_caps)
159 node->amp_out_caps = spec->def_amp_out_caps;
160 }
161 if (node->wid_caps & AC_WCAP_IN_AMP) {
162 if (node->wid_caps & AC_WCAP_AMP_OVRD)
163 node->amp_in_caps = snd_hda_param_read(codec, node->nid, AC_PAR_AMP_IN_CAP);
164 if (! node->amp_in_caps)
165 node->amp_in_caps = spec->def_amp_in_caps;
166 }
167 list_add_tail(&node->list, &spec->nid_list);
168 return 0;
169 }
170
171 /*
172 * build the AFG subtree
173 */
174 static int build_afg_tree(struct hda_codec *codec)
175 {
176 struct hda_gspec *spec = codec->spec;
177 int i, nodes, err;
178 hda_nid_t nid;
179
180 if (snd_BUG_ON(!spec))
181 return -EINVAL;
182
183 spec->def_amp_out_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_OUT_CAP);
184 spec->def_amp_in_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_IN_CAP);
185
186 nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
187 if (! nid || nodes < 0) {
188 printk(KERN_ERR "Invalid AFG subtree\n");
189 return -EINVAL;
190 }
191
192 /* parse all nodes belonging to the AFG */
193 for (i = 0; i < nodes; i++, nid++) {
194 if ((err = add_new_node(codec, spec, nid)) < 0)
195 return err;
196 }
197
198 return 0;
199 }
200
201
202 /*
203 * look for the node record for the given NID
204 */
205 /* FIXME: should avoid the braindead linear search */
206 static struct hda_gnode *hda_get_node(struct hda_gspec *spec, hda_nid_t nid)
207 {
208 struct hda_gnode *node;
209
210 list_for_each_entry(node, &spec->nid_list, list) {
211 if (node->nid == nid)
212 return node;
213 }
214 return NULL;
215 }
216
217 /*
218 * unmute (and set max vol) the output amplifier
219 */
220 static int unmute_output(struct hda_codec *codec, struct hda_gnode *node)
221 {
222 unsigned int val, ofs;
223 snd_printdd("UNMUTE OUT: NID=0x%x\n", node->nid);
224 val = (node->amp_out_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
225 ofs = (node->amp_out_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT;
226 if (val >= ofs)
227 val -= ofs;
228 snd_hda_codec_amp_stereo(codec, node->nid, HDA_OUTPUT, 0, 0xff, val);
229 return 0;
230 }
231
232 /*
233 * unmute (and set max vol) the input amplifier
234 */
235 static int unmute_input(struct hda_codec *codec, struct hda_gnode *node, unsigned int index)
236 {
237 unsigned int val, ofs;
238 snd_printdd("UNMUTE IN: NID=0x%x IDX=0x%x\n", node->nid, index);
239 val = (node->amp_in_caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
240 ofs = (node->amp_in_caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT;
241 if (val >= ofs)
242 val -= ofs;
243 snd_hda_codec_amp_stereo(codec, node->nid, HDA_INPUT, index, 0xff, val);
244 return 0;
245 }
246
247 /*
248 * select the input connection of the given node.
249 */
250 static int select_input_connection(struct hda_codec *codec, struct hda_gnode *node,
251 unsigned int index)
252 {
253 snd_printdd("CONNECT: NID=0x%x IDX=0x%x\n", node->nid, index);
254 return snd_hda_codec_write_cache(codec, node->nid, 0,
255 AC_VERB_SET_CONNECT_SEL, index);
256 }
257
258 /*
259 * clear checked flag of each node in the node list
260 */
261 static void clear_check_flags(struct hda_gspec *spec)
262 {
263 struct hda_gnode *node;
264
265 list_for_each_entry(node, &spec->nid_list, list) {
266 node->checked = 0;
267 }
268 }
269
270 /*
271 * parse the output path recursively until reach to an audio output widget
272 *
273 * returns 0 if not found, 1 if found, or a negative error code.
274 */
275 static int parse_output_path(struct hda_codec *codec, struct hda_gspec *spec,
276 struct hda_gnode *node, int dac_idx)
277 {
278 int i, err;
279 struct hda_gnode *child;
280
281 if (node->checked)
282 return 0;
283
284 node->checked = 1;
285 if (node->type == AC_WID_AUD_OUT) {
286 if (node->wid_caps & AC_WCAP_DIGITAL) {
287 snd_printdd("Skip Digital OUT node %x\n", node->nid);
288 return 0;
289 }
290 snd_printdd("AUD_OUT found %x\n", node->nid);
291 if (spec->dac_node[dac_idx]) {
292 /* already DAC node is assigned, just unmute & connect */
293 return node == spec->dac_node[dac_idx];
294 }
295 spec->dac_node[dac_idx] = node;
296 if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
297 spec->pcm_vol_nodes < MAX_PCM_VOLS) {
298 spec->pcm_vol[spec->pcm_vol_nodes].node = node;
299 spec->pcm_vol[spec->pcm_vol_nodes].index = 0;
300 spec->pcm_vol_nodes++;
301 }
302 return 1; /* found */
303 }
304
305 for (i = 0; i < node->nconns; i++) {
306 child = hda_get_node(spec, node->conn_list[i]);
307 if (! child)
308 continue;
309 err = parse_output_path(codec, spec, child, dac_idx);
310 if (err < 0)
311 return err;
312 else if (err > 0) {
313 /* found one,
314 * select the path, unmute both input and output
315 */
316 if (node->nconns > 1)
317 select_input_connection(codec, node, i);
318 unmute_input(codec, node, i);
319 unmute_output(codec, node);
320 if (spec->dac_node[dac_idx] &&
321 spec->pcm_vol_nodes < MAX_PCM_VOLS &&
322 !(spec->dac_node[dac_idx]->wid_caps &
323 AC_WCAP_OUT_AMP)) {
324 if ((node->wid_caps & AC_WCAP_IN_AMP) ||
325 (node->wid_caps & AC_WCAP_OUT_AMP)) {
326 int n = spec->pcm_vol_nodes;
327 spec->pcm_vol[n].node = node;
328 spec->pcm_vol[n].index = i;
329 spec->pcm_vol_nodes++;
330 }
331 }
332 return 1;
333 }
334 }
335 return 0;
336 }
337
338 /*
339 * Look for the output PIN widget with the given jack type
340 * and parse the output path to that PIN.
341 *
342 * Returns the PIN node when the path to DAC is established.
343 */
344 static struct hda_gnode *parse_output_jack(struct hda_codec *codec,
345 struct hda_gspec *spec,
346 int jack_type)
347 {
348 struct hda_gnode *node;
349 int err;
350
351 list_for_each_entry(node, &spec->nid_list, list) {
352 if (node->type != AC_WID_PIN)
353 continue;
354 /* output capable? */
355 if (! (node->pin_caps & AC_PINCAP_OUT))
356 continue;
357 if (defcfg_port_conn(node) == AC_JACK_PORT_NONE)
358 continue; /* unconnected */
359 if (jack_type >= 0) {
360 if (jack_type != defcfg_type(node))
361 continue;
362 if (node->wid_caps & AC_WCAP_DIGITAL)
363 continue; /* skip SPDIF */
364 } else {
365 /* output as default? */
366 if (! (node->pin_ctl & AC_PINCTL_OUT_EN))
367 continue;
368 }
369 clear_check_flags(spec);
370 err = parse_output_path(codec, spec, node, 0);
371 if (err < 0)
372 return NULL;
373 if (! err && spec->out_pin_node[0]) {
374 err = parse_output_path(codec, spec, node, 1);
375 if (err < 0)
376 return NULL;
377 }
378 if (err > 0) {
379 /* unmute the PIN output */
380 unmute_output(codec, node);
381 /* set PIN-Out enable */
382 snd_hda_codec_write_cache(codec, node->nid, 0,
383 AC_VERB_SET_PIN_WIDGET_CONTROL,
384 AC_PINCTL_OUT_EN |
385 ((node->pin_caps & AC_PINCAP_HP_DRV) ?
386 AC_PINCTL_HP_EN : 0));
387 return node;
388 }
389 }
390 return NULL;
391 }
392
393
394 /*
395 * parse outputs
396 */
397 static int parse_output(struct hda_codec *codec)
398 {
399 struct hda_gspec *spec = codec->spec;
400 struct hda_gnode *node;
401
402 /*
403 * Look for the output PIN widget
404 */
405 /* first, look for the line-out pin */
406 node = parse_output_jack(codec, spec, AC_JACK_LINE_OUT);
407 if (node) /* found, remember the PIN node */
408 spec->out_pin_node[0] = node;
409 else {
410 /* if no line-out is found, try speaker out */
411 node = parse_output_jack(codec, spec, AC_JACK_SPEAKER);
412 if (node)
413 spec->out_pin_node[0] = node;
414 }
415 /* look for the HP-out pin */
416 node = parse_output_jack(codec, spec, AC_JACK_HP_OUT);
417 if (node) {
418 if (! spec->out_pin_node[0])
419 spec->out_pin_node[0] = node;
420 else
421 spec->out_pin_node[1] = node;
422 }
423
424 if (! spec->out_pin_node[0]) {
425 /* no line-out or HP pins found,
426 * then choose for the first output pin
427 */
428 spec->out_pin_node[0] = parse_output_jack(codec, spec, -1);
429 if (! spec->out_pin_node[0])
430 snd_printd("hda_generic: no proper output path found\n");
431 }
432
433 return 0;
434 }
435
436 /*
437 * input MUX
438 */
439
440 /* control callbacks */
441 static int capture_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
442 {
443 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
444 struct hda_gspec *spec = codec->spec;
445 return snd_hda_input_mux_info(&spec->input_mux, uinfo);
446 }
447
448 static int capture_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
449 {
450 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
451 struct hda_gspec *spec = codec->spec;
452
453 ucontrol->value.enumerated.item[0] = spec->cur_cap_src;
454 return 0;
455 }
456
457 static int capture_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
458 {
459 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
460 struct hda_gspec *spec = codec->spec;
461 return snd_hda_input_mux_put(codec, &spec->input_mux, ucontrol,
462 spec->adc_node->nid, &spec->cur_cap_src);
463 }
464
465 /*
466 * return the string name of the given input PIN widget
467 */
468 static const char *get_input_type(struct hda_gnode *node, unsigned int *pinctl)
469 {
470 unsigned int location = defcfg_location(node);
471 switch (defcfg_type(node)) {
472 case AC_JACK_LINE_IN:
473 if ((location & 0x0f) == AC_JACK_LOC_FRONT)
474 return "Front Line";
475 return "Line";
476 case AC_JACK_CD:
477 #if 0
478 if (pinctl)
479 *pinctl |= AC_PINCTL_VREF_GRD;
480 #endif
481 return "CD";
482 case AC_JACK_AUX:
483 if ((location & 0x0f) == AC_JACK_LOC_FRONT)
484 return "Front Aux";
485 return "Aux";
486 case AC_JACK_MIC_IN:
487 if (pinctl &&
488 (node->pin_caps &
489 (AC_PINCAP_VREF_80 << AC_PINCAP_VREF_SHIFT)))
490 *pinctl |= AC_PINCTL_VREF_80;
491 if ((location & 0x0f) == AC_JACK_LOC_FRONT)
492 return "Front Mic";
493 return "Mic";
494 case AC_JACK_SPDIF_IN:
495 return "SPDIF";
496 case AC_JACK_DIG_OTHER_IN:
497 return "Digital";
498 }
499 return NULL;
500 }
501
502 /*
503 * parse the nodes recursively until reach to the input PIN
504 *
505 * returns 0 if not found, 1 if found, or a negative error code.
506 */
507 static int parse_adc_sub_nodes(struct hda_codec *codec, struct hda_gspec *spec,
508 struct hda_gnode *node, int idx)
509 {
510 int i, err;
511 unsigned int pinctl;
512 const char *type;
513
514 if (node->checked)
515 return 0;
516
517 node->checked = 1;
518 if (node->type != AC_WID_PIN) {
519 for (i = 0; i < node->nconns; i++) {
520 struct hda_gnode *child;
521 child = hda_get_node(spec, node->conn_list[i]);
522 if (! child)
523 continue;
524 err = parse_adc_sub_nodes(codec, spec, child, idx);
525 if (err < 0)
526 return err;
527 if (err > 0) {
528 /* found one,
529 * select the path, unmute both input and output
530 */
531 if (node->nconns > 1)
532 select_input_connection(codec, node, i);
533 unmute_input(codec, node, i);
534 unmute_output(codec, node);
535 return err;
536 }
537 }
538 return 0;
539 }
540
541 /* input capable? */
542 if (! (node->pin_caps & AC_PINCAP_IN))
543 return 0;
544
545 if (defcfg_port_conn(node) == AC_JACK_PORT_NONE)
546 return 0; /* unconnected */
547
548 if (node->wid_caps & AC_WCAP_DIGITAL)
549 return 0; /* skip SPDIF */
550
551 if (spec->input_mux.num_items >= HDA_MAX_NUM_INPUTS) {
552 snd_printk(KERN_ERR "hda_generic: Too many items for capture\n");
553 return -EINVAL;
554 }
555
556 pinctl = AC_PINCTL_IN_EN;
557 /* create a proper capture source label */
558 type = get_input_type(node, &pinctl);
559 if (! type) {
560 /* input as default? */
561 if (! (node->pin_ctl & AC_PINCTL_IN_EN))
562 return 0;
563 type = "Input";
564 }
565 snd_hda_add_imux_item(&spec->input_mux, type, idx, NULL);
566
567 /* unmute the PIN external input */
568 unmute_input(codec, node, 0); /* index = 0? */
569 /* set PIN-In enable */
570 snd_hda_codec_write_cache(codec, node->nid, 0,
571 AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl);
572
573 return 1; /* found */
574 }
575
576 /*
577 * parse input
578 */
579 static int parse_input_path(struct hda_codec *codec, struct hda_gnode *adc_node)
580 {
581 struct hda_gspec *spec = codec->spec;
582 struct hda_gnode *node;
583 int i, err;
584
585 snd_printdd("AUD_IN = %x\n", adc_node->nid);
586 clear_check_flags(spec);
587
588 // awk added - fixed no recording due to muted widget
589 unmute_input(codec, adc_node, 0);
590
591 /*
592 * check each connection of the ADC
593 * if it reaches to a proper input PIN, add the path as the
594 * input path.
595 */
596 /* first, check the direct connections to PIN widgets */
597 for (i = 0; i < adc_node->nconns; i++) {
598 node = hda_get_node(spec, adc_node->conn_list[i]);
599 if (node && node->type == AC_WID_PIN) {
600 err = parse_adc_sub_nodes(codec, spec, node, i);
601 if (err < 0)
602 return err;
603 }
604 }
605 /* ... then check the rests, more complicated connections */
606 for (i = 0; i < adc_node->nconns; i++) {
607 node = hda_get_node(spec, adc_node->conn_list[i]);
608 if (node && node->type != AC_WID_PIN) {
609 err = parse_adc_sub_nodes(codec, spec, node, i);
610 if (err < 0)
611 return err;
612 }
613 }
614
615 if (! spec->input_mux.num_items)
616 return 0; /* no input path found... */
617
618 snd_printdd("[Capture Source] NID=0x%x, #SRC=%d\n", adc_node->nid, spec->input_mux.num_items);
619 for (i = 0; i < spec->input_mux.num_items; i++)
620 snd_printdd(" [%s] IDX=0x%x\n", spec->input_mux.items[i].label,
621 spec->input_mux.items[i].index);
622
623 spec->adc_node = adc_node;
624 return 1;
625 }
626
627 /*
628 * parse input
629 */
630 static int parse_input(struct hda_codec *codec)
631 {
632 struct hda_gspec *spec = codec->spec;
633 struct hda_gnode *node;
634 int err;
635
636 /*
637 * At first we look for an audio input widget.
638 * If it reaches to certain input PINs, we take it as the
639 * input path.
640 */
641 list_for_each_entry(node, &spec->nid_list, list) {
642 if (node->wid_caps & AC_WCAP_DIGITAL)
643 continue; /* skip SPDIF */
644 if (node->type == AC_WID_AUD_IN) {
645 err = parse_input_path(codec, node);
646 if (err < 0)
647 return err;
648 else if (err > 0)
649 return 0;
650 }
651 }
652 snd_printd("hda_generic: no proper input path found\n");
653 return 0;
654 }
655
656 #ifdef CONFIG_SND_HDA_POWER_SAVE
657 static void add_input_loopback(struct hda_codec *codec, hda_nid_t nid,
658 int dir, int idx)
659 {
660 struct hda_gspec *spec = codec->spec;
661 struct hda_amp_list *p;
662
663 if (spec->num_loopbacks >= MAX_LOOPBACK_AMPS) {
664 snd_printk(KERN_ERR "hda_generic: Too many loopback ctls\n");
665 return;
666 }
667 p = &spec->loopback_list[spec->num_loopbacks++];
668 p->nid = nid;
669 p->dir = dir;
670 p->idx = idx;
671 spec->loopback.amplist = spec->loopback_list;
672 }
673 #else
674 #define add_input_loopback(codec,nid,dir,idx)
675 #endif
676
677 /*
678 * create mixer controls if possible
679 */
680 static int create_mixer(struct hda_codec *codec, struct hda_gnode *node,
681 unsigned int index, const char *type,
682 const char *dir_sfx, int is_loopback)
683 {
684 char name[32];
685 int err;
686 int created = 0;
687 struct snd_kcontrol_new knew;
688
689 if (type)
690 sprintf(name, "%s %s Switch", type, dir_sfx);
691 else
692 sprintf(name, "%s Switch", dir_sfx);
693 if ((node->wid_caps & AC_WCAP_IN_AMP) &&
694 (node->amp_in_caps & AC_AMPCAP_MUTE)) {
695 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, index, HDA_INPUT);
696 if (is_loopback)
697 add_input_loopback(codec, node->nid, HDA_INPUT, index);
698 snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index);
699 err = snd_hda_ctl_add(codec, node->nid,
700 snd_ctl_new1(&knew, codec));
701 if (err < 0)
702 return err;
703 created = 1;
704 } else if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
705 (node->amp_out_caps & AC_AMPCAP_MUTE)) {
706 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, 0, HDA_OUTPUT);
707 if (is_loopback)
708 add_input_loopback(codec, node->nid, HDA_OUTPUT, 0);
709 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid);
710 err = snd_hda_ctl_add(codec, node->nid,
711 snd_ctl_new1(&knew, codec));
712 if (err < 0)
713 return err;
714 created = 1;
715 }
716
717 if (type)
718 sprintf(name, "%s %s Volume", type, dir_sfx);
719 else
720 sprintf(name, "%s Volume", dir_sfx);
721 if ((node->wid_caps & AC_WCAP_IN_AMP) &&
722 (node->amp_in_caps & AC_AMPCAP_NUM_STEPS)) {
723 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, index, HDA_INPUT);
724 snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index);
725 err = snd_hda_ctl_add(codec, node->nid,
726 snd_ctl_new1(&knew, codec));
727 if (err < 0)
728 return err;
729 created = 1;
730 } else if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
731 (node->amp_out_caps & AC_AMPCAP_NUM_STEPS)) {
732 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, 0, HDA_OUTPUT);
733 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid);
734 err = snd_hda_ctl_add(codec, node->nid,
735 snd_ctl_new1(&knew, codec));
736 if (err < 0)
737 return err;
738 created = 1;
739 }
740
741 return created;
742 }
743
744 /*
745 * check whether the controls with the given name and direction suffix already exist
746 */
747 static int check_existing_control(struct hda_codec *codec, const char *type, const char *dir)
748 {
749 struct snd_ctl_elem_id id;
750 memset(&id, 0, sizeof(id));
751 sprintf(id.name, "%s %s Volume", type, dir);
752 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
753 if (snd_ctl_find_id(codec->bus->card, &id))
754 return 1;
755 sprintf(id.name, "%s %s Switch", type, dir);
756 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
757 if (snd_ctl_find_id(codec->bus->card, &id))
758 return 1;
759 return 0;
760 }
761
762 /*
763 * build output mixer controls
764 */
765 static int create_output_mixers(struct hda_codec *codec,
766 const char * const *names)
767 {
768 struct hda_gspec *spec = codec->spec;
769 int i, err;
770
771 for (i = 0; i < spec->pcm_vol_nodes; i++) {
772 err = create_mixer(codec, spec->pcm_vol[i].node,
773 spec->pcm_vol[i].index,
774 names[i], "Playback", 0);
775 if (err < 0)
776 return err;
777 }
778 return 0;
779 }
780
781 static int build_output_controls(struct hda_codec *codec)
782 {
783 struct hda_gspec *spec = codec->spec;
784 static const char * const types_speaker[] = { "Speaker", "Headphone" };
785 static const char * const types_line[] = { "Front", "Headphone" };
786
787 switch (spec->pcm_vol_nodes) {
788 case 1:
789 return create_mixer(codec, spec->pcm_vol[0].node,
790 spec->pcm_vol[0].index,
791 "Master", "Playback", 0);
792 case 2:
793 if (defcfg_type(spec->out_pin_node[0]) == AC_JACK_SPEAKER)
794 return create_output_mixers(codec, types_speaker);
795 else
796 return create_output_mixers(codec, types_line);
797 }
798 return 0;
799 }
800
801 /* create capture volume/switch */
802 static int build_input_controls(struct hda_codec *codec)
803 {
804 struct hda_gspec *spec = codec->spec;
805 struct hda_gnode *adc_node = spec->adc_node;
806 int i, err;
807 static struct snd_kcontrol_new cap_sel = {
808 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
809 .name = "Capture Source",
810 .info = capture_source_info,
811 .get = capture_source_get,
812 .put = capture_source_put,
813 };
814
815 if (! adc_node || ! spec->input_mux.num_items)
816 return 0; /* not found */
817
818 spec->cur_cap_src = 0;
819 select_input_connection(codec, adc_node,
820 spec->input_mux.items[0].index);
821
822 /* create capture volume and switch controls if the ADC has an amp */
823 /* do we have only a single item? */
824 if (spec->input_mux.num_items == 1) {
825 err = create_mixer(codec, adc_node,
826 spec->input_mux.items[0].index,
827 NULL, "Capture", 0);
828 if (err < 0)
829 return err;
830 return 0;
831 }
832
833 /* create input MUX if multiple sources are available */
834 err = snd_hda_ctl_add(codec, spec->adc_node->nid,
835 snd_ctl_new1(&cap_sel, codec));
836 if (err < 0)
837 return err;
838
839 /* no volume control? */
840 if (! (adc_node->wid_caps & AC_WCAP_IN_AMP) ||
841 ! (adc_node->amp_in_caps & AC_AMPCAP_NUM_STEPS))
842 return 0;
843
844 for (i = 0; i < spec->input_mux.num_items; i++) {
845 struct snd_kcontrol_new knew;
846 char name[32];
847 sprintf(name, "%s Capture Volume",
848 spec->input_mux.items[i].label);
849 knew = (struct snd_kcontrol_new)
850 HDA_CODEC_VOLUME(name, adc_node->nid,
851 spec->input_mux.items[i].index,
852 HDA_INPUT);
853 err = snd_hda_ctl_add(codec, adc_node->nid,
854 snd_ctl_new1(&knew, codec));
855 if (err < 0)
856 return err;
857 }
858
859 return 0;
860 }
861
862
863 /*
864 * parse the nodes recursively until reach to the output PIN.
865 *
866 * returns 0 - if not found,
867 * 1 - if found, but no mixer is created
868 * 2 - if found and mixer was already created, (just skip)
869 * a negative error code
870 */
871 static int parse_loopback_path(struct hda_codec *codec, struct hda_gspec *spec,
872 struct hda_gnode *node, struct hda_gnode *dest_node,
873 const char *type)
874 {
875 int i, err;
876
877 if (node->checked)
878 return 0;
879
880 node->checked = 1;
881 if (node == dest_node) {
882 /* loopback connection found */
883 return 1;
884 }
885
886 for (i = 0; i < node->nconns; i++) {
887 struct hda_gnode *child = hda_get_node(spec, node->conn_list[i]);
888 if (! child)
889 continue;
890 err = parse_loopback_path(codec, spec, child, dest_node, type);
891 if (err < 0)
892 return err;
893 else if (err >= 1) {
894 if (err == 1) {
895 err = create_mixer(codec, node, i, type,
896 "Playback", 1);
897 if (err < 0)
898 return err;
899 if (err > 0)
900 return 2; /* ok, created */
901 /* not created, maybe in the lower path */
902 err = 1;
903 }
904 /* connect and unmute */
905 if (node->nconns > 1)
906 select_input_connection(codec, node, i);
907 unmute_input(codec, node, i);
908 unmute_output(codec, node);
909 return err;
910 }
911 }
912 return 0;
913 }
914
915 /*
916 * parse the tree and build the loopback controls
917 */
918 static int build_loopback_controls(struct hda_codec *codec)
919 {
920 struct hda_gspec *spec = codec->spec;
921 struct hda_gnode *node;
922 int err;
923 const char *type;
924
925 if (! spec->out_pin_node[0])
926 return 0;
927
928 list_for_each_entry(node, &spec->nid_list, list) {
929 if (node->type != AC_WID_PIN)
930 continue;
931 /* input capable? */
932 if (! (node->pin_caps & AC_PINCAP_IN))
933 return 0;
934 type = get_input_type(node, NULL);
935 if (type) {
936 if (check_existing_control(codec, type, "Playback"))
937 continue;
938 clear_check_flags(spec);
939 err = parse_loopback_path(codec, spec,
940 spec->out_pin_node[0],
941 node, type);
942 if (err < 0)
943 return err;
944 if (! err)
945 continue;
946 }
947 }
948 return 0;
949 }
950
951 /*
952 * build mixer controls
953 */
954 static int build_generic_controls(struct hda_codec *codec)
955 {
956 int err;
957
958 if ((err = build_input_controls(codec)) < 0 ||
959 (err = build_output_controls(codec)) < 0 ||
960 (err = build_loopback_controls(codec)) < 0)
961 return err;
962
963 return 0;
964 }
965
966 /*
967 * PCM
968 */
969 static struct hda_pcm_stream generic_pcm_playback = {
970 .substreams = 1,
971 .channels_min = 2,
972 .channels_max = 2,
973 };
974
975 static int generic_pcm2_prepare(struct hda_pcm_stream *hinfo,
976 struct hda_codec *codec,
977 unsigned int stream_tag,
978 unsigned int format,
979 struct snd_pcm_substream *substream)
980 {
981 struct hda_gspec *spec = codec->spec;
982
983 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
984 snd_hda_codec_setup_stream(codec, spec->dac_node[1]->nid,
985 stream_tag, 0, format);
986 return 0;
987 }
988
989 static int generic_pcm2_cleanup(struct hda_pcm_stream *hinfo,
990 struct hda_codec *codec,
991 struct snd_pcm_substream *substream)
992 {
993 struct hda_gspec *spec = codec->spec;
994
995 snd_hda_codec_cleanup_stream(codec, hinfo->nid);
996 snd_hda_codec_cleanup_stream(codec, spec->dac_node[1]->nid);
997 return 0;
998 }
999
1000 static int build_generic_pcms(struct hda_codec *codec)
1001 {
1002 struct hda_gspec *spec = codec->spec;
1003 struct hda_pcm *info = &spec->pcm_rec;
1004
1005 if (! spec->dac_node[0] && ! spec->adc_node) {
1006 snd_printd("hda_generic: no PCM found\n");
1007 return 0;
1008 }
1009
1010 codec->num_pcms = 1;
1011 codec->pcm_info = info;
1012
1013 info->name = "HDA Generic";
1014 if (spec->dac_node[0]) {
1015 info->stream[0] = generic_pcm_playback;
1016 info->stream[0].nid = spec->dac_node[0]->nid;
1017 if (spec->dac_node[1]) {
1018 info->stream[0].ops.prepare = generic_pcm2_prepare;
1019 info->stream[0].ops.cleanup = generic_pcm2_cleanup;
1020 }
1021 }
1022 if (spec->adc_node) {
1023 info->stream[1] = generic_pcm_playback;
1024 info->stream[1].nid = spec->adc_node->nid;
1025 }
1026
1027 return 0;
1028 }
1029
1030 #ifdef CONFIG_SND_HDA_POWER_SAVE
1031 static int generic_check_power_status(struct hda_codec *codec, hda_nid_t nid)
1032 {
1033 struct hda_gspec *spec = codec->spec;
1034 return snd_hda_check_amp_list_power(codec, &spec->loopback, nid);
1035 }
1036 #endif
1037
1038
1039 /*
1040 */
1041 static struct hda_codec_ops generic_patch_ops = {
1042 .build_controls = build_generic_controls,
1043 .build_pcms = build_generic_pcms,
1044 .free = snd_hda_generic_free,
1045 #ifdef CONFIG_SND_HDA_POWER_SAVE
1046 .check_power_status = generic_check_power_status,
1047 #endif
1048 };
1049
1050 /*
1051 * the generic parser
1052 */
1053 int snd_hda_parse_generic_codec(struct hda_codec *codec)
1054 {
1055 struct hda_gspec *spec;
1056 int err;
1057
1058 if(!codec->afg)
1059 return 0;
1060
1061 spec = kzalloc(sizeof(*spec), GFP_KERNEL);
1062 if (spec == NULL) {
1063 printk(KERN_ERR "hda_generic: can't allocate spec\n");
1064 return -ENOMEM;
1065 }
1066 codec->spec = spec;
1067 INIT_LIST_HEAD(&spec->nid_list);
1068
1069 if ((err = build_afg_tree(codec)) < 0)
1070 goto error;
1071
1072 if ((err = parse_input(codec)) < 0 ||
1073 (err = parse_output(codec)) < 0)
1074 goto error;
1075
1076 codec->patch_ops = generic_patch_ops;
1077
1078 return 0;
1079
1080 error:
1081 snd_hda_generic_free(codec);
1082 return err;
1083 }
1084 EXPORT_SYMBOL(snd_hda_parse_generic_codec);
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