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diff --git a/usr/src/dkms_source_tree/hda_generic.c b/usr/src/dkms_source_tree/hda_generic.c
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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 */
30struct 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
49struct pcm_vol {
50 struct hda_gnode *node; /* Node for PCM volume */
51 unsigned int index; /* connection of PCM volume */
52};
53
54struct 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 char cap_labels[HDA_MAX_NUM_INPUTS][16];
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 */
94static 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 */
114static 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 */
175static 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 */
207static 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 */
221static 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 */
236static 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 */
251static 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 */
262static 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 */
276static 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 */
345static 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 */
398static 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 */
442static 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
449static 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
458static 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 */
469static 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 */
508static int parse_adc_sub_nodes(struct hda_codec *codec, struct hda_gspec *spec,
509 struct hda_gnode *node)
510{
511 int i, err;
512 unsigned int pinctl;
513 char *label;
514 const char *type;
515
516 if (node->checked)
517 return 0;
518
519 node->checked = 1;
520 if (node->type != AC_WID_PIN) {
521 for (i = 0; i < node->nconns; i++) {
522 struct hda_gnode *child;
523 child = hda_get_node(spec, node->conn_list[i]);
524 if (! child)
525 continue;
526 err = parse_adc_sub_nodes(codec, spec, child);
527 if (err < 0)
528 return err;
529 if (err > 0) {
530 /* found one,
531 * select the path, unmute both input and output
532 */
533 if (node->nconns > 1)
534 select_input_connection(codec, node, i);
535 unmute_input(codec, node, i);
536 unmute_output(codec, node);
537 return err;
538 }
539 }
540 return 0;
541 }
542
543 /* input capable? */
544 if (! (node->pin_caps & AC_PINCAP_IN))
545 return 0;
546
547 if (defcfg_port_conn(node) == AC_JACK_PORT_NONE)
548 return 0; /* unconnected */
549
550 if (node->wid_caps & AC_WCAP_DIGITAL)
551 return 0; /* skip SPDIF */
552
553 if (spec->input_mux.num_items >= HDA_MAX_NUM_INPUTS) {
554 snd_printk(KERN_ERR "hda_generic: Too many items for capture\n");
555 return -EINVAL;
556 }
557
558 pinctl = AC_PINCTL_IN_EN;
559 /* create a proper capture source label */
560 type = get_input_type(node, &pinctl);
561 if (! type) {
562 /* input as default? */
563 if (! (node->pin_ctl & AC_PINCTL_IN_EN))
564 return 0;
565 type = "Input";
566 }
567 label = spec->cap_labels[spec->input_mux.num_items];
568 strcpy(label, type);
569 spec->input_mux.items[spec->input_mux.num_items].label = label;
570
571 /* unmute the PIN external input */
572 unmute_input(codec, node, 0); /* index = 0? */
573 /* set PIN-In enable */
574 snd_hda_codec_write_cache(codec, node->nid, 0,
575 AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl);
576
577 return 1; /* found */
578}
579
580/* add a capture source element */
581static void add_cap_src(struct hda_gspec *spec, int idx)
582{
583 struct hda_input_mux_item *csrc;
584 char *buf;
585 int num, ocap;
586
587 num = spec->input_mux.num_items;
588 csrc = &spec->input_mux.items[num];
589 buf = spec->cap_labels[num];
590 for (ocap = 0; ocap < num; ocap++) {
591 if (! strcmp(buf, spec->cap_labels[ocap])) {
592 /* same label already exists,
593 * put the index number to be unique
594 */
595 sprintf(buf, "%s %d", spec->cap_labels[ocap], num);
596 break;
597 }
598 }
599 csrc->index = idx;
600 spec->input_mux.num_items++;
601}
602
603/*
604 * parse input
605 */
606static int parse_input_path(struct hda_codec *codec, struct hda_gnode *adc_node)
607{
608 struct hda_gspec *spec = codec->spec;
609 struct hda_gnode *node;
610 int i, err;
611
612 snd_printdd("AUD_IN = %x\n", adc_node->nid);
613 clear_check_flags(spec);
614
615 // awk added - fixed no recording due to muted widget
616 unmute_input(codec, adc_node, 0);
617
618 /*
619 * check each connection of the ADC
620 * if it reaches to a proper input PIN, add the path as the
621 * input path.
622 */
623 /* first, check the direct connections to PIN widgets */
624 for (i = 0; i < adc_node->nconns; i++) {
625 node = hda_get_node(spec, adc_node->conn_list[i]);
626 if (node && node->type == AC_WID_PIN) {
627 err = parse_adc_sub_nodes(codec, spec, node);
628 if (err < 0)
629 return err;
630 else if (err > 0)
631 add_cap_src(spec, i);
632 }
633 }
634 /* ... then check the rests, more complicated connections */
635 for (i = 0; i < adc_node->nconns; i++) {
636 node = hda_get_node(spec, adc_node->conn_list[i]);
637 if (node && node->type != AC_WID_PIN) {
638 err = parse_adc_sub_nodes(codec, spec, node);
639 if (err < 0)
640 return err;
641 else if (err > 0)
642 add_cap_src(spec, i);
643 }
644 }
645
646 if (! spec->input_mux.num_items)
647 return 0; /* no input path found... */
648
649 snd_printdd("[Capture Source] NID=0x%x, #SRC=%d\n", adc_node->nid, spec->input_mux.num_items);
650 for (i = 0; i < spec->input_mux.num_items; i++)
651 snd_printdd(" [%s] IDX=0x%x\n", spec->input_mux.items[i].label,
652 spec->input_mux.items[i].index);
653
654 spec->adc_node = adc_node;
655 return 1;
656}
657
658/*
659 * parse input
660 */
661static int parse_input(struct hda_codec *codec)
662{
663 struct hda_gspec *spec = codec->spec;
664 struct hda_gnode *node;
665 int err;
666
667 /*
668 * At first we look for an audio input widget.
669 * If it reaches to certain input PINs, we take it as the
670 * input path.
671 */
672 list_for_each_entry(node, &spec->nid_list, list) {
673 if (node->wid_caps & AC_WCAP_DIGITAL)
674 continue; /* skip SPDIF */
675 if (node->type == AC_WID_AUD_IN) {
676 err = parse_input_path(codec, node);
677 if (err < 0)
678 return err;
679 else if (err > 0)
680 return 0;
681 }
682 }
683 snd_printd("hda_generic: no proper input path found\n");
684 return 0;
685}
686
687#ifdef CONFIG_SND_HDA_POWER_SAVE
688static void add_input_loopback(struct hda_codec *codec, hda_nid_t nid,
689 int dir, int idx)
690{
691 struct hda_gspec *spec = codec->spec;
692 struct hda_amp_list *p;
693
694 if (spec->num_loopbacks >= MAX_LOOPBACK_AMPS) {
695 snd_printk(KERN_ERR "hda_generic: Too many loopback ctls\n");
696 return;
697 }
698 p = &spec->loopback_list[spec->num_loopbacks++];
699 p->nid = nid;
700 p->dir = dir;
701 p->idx = idx;
702 spec->loopback.amplist = spec->loopback_list;
703}
704#else
705#define add_input_loopback(codec,nid,dir,idx)
706#endif
707
708/*
709 * create mixer controls if possible
710 */
711static int create_mixer(struct hda_codec *codec, struct hda_gnode *node,
712 unsigned int index, const char *type,
713 const char *dir_sfx, int is_loopback)
714{
715 char name[32];
716 int err;
717 int created = 0;
718 struct snd_kcontrol_new knew;
719
720 if (type)
721 sprintf(name, "%s %s Switch", type, dir_sfx);
722 else
723 sprintf(name, "%s Switch", dir_sfx);
724 if ((node->wid_caps & AC_WCAP_IN_AMP) &&
725 (node->amp_in_caps & AC_AMPCAP_MUTE)) {
726 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, index, HDA_INPUT);
727 if (is_loopback)
728 add_input_loopback(codec, node->nid, HDA_INPUT, index);
729 snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index);
730 err = snd_hda_ctl_add(codec, node->nid,
731 snd_ctl_new1(&knew, codec));
732 if (err < 0)
733 return err;
734 created = 1;
735 } else if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
736 (node->amp_out_caps & AC_AMPCAP_MUTE)) {
737 knew = (struct snd_kcontrol_new)HDA_CODEC_MUTE(name, node->nid, 0, HDA_OUTPUT);
738 if (is_loopback)
739 add_input_loopback(codec, node->nid, HDA_OUTPUT, 0);
740 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid);
741 err = snd_hda_ctl_add(codec, node->nid,
742 snd_ctl_new1(&knew, codec));
743 if (err < 0)
744 return err;
745 created = 1;
746 }
747
748 if (type)
749 sprintf(name, "%s %s Volume", type, dir_sfx);
750 else
751 sprintf(name, "%s Volume", dir_sfx);
752 if ((node->wid_caps & AC_WCAP_IN_AMP) &&
753 (node->amp_in_caps & AC_AMPCAP_NUM_STEPS)) {
754 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, index, HDA_INPUT);
755 snd_printdd("[%s] NID=0x%x, DIR=IN, IDX=0x%x\n", name, node->nid, index);
756 err = snd_hda_ctl_add(codec, node->nid,
757 snd_ctl_new1(&knew, codec));
758 if (err < 0)
759 return err;
760 created = 1;
761 } else if ((node->wid_caps & AC_WCAP_OUT_AMP) &&
762 (node->amp_out_caps & AC_AMPCAP_NUM_STEPS)) {
763 knew = (struct snd_kcontrol_new)HDA_CODEC_VOLUME(name, node->nid, 0, HDA_OUTPUT);
764 snd_printdd("[%s] NID=0x%x, DIR=OUT\n", name, node->nid);
765 err = snd_hda_ctl_add(codec, node->nid,
766 snd_ctl_new1(&knew, codec));
767 if (err < 0)
768 return err;
769 created = 1;
770 }
771
772 return created;
773}
774
775/*
776 * check whether the controls with the given name and direction suffix already exist
777 */
778static int check_existing_control(struct hda_codec *codec, const char *type, const char *dir)
779{
780 struct snd_ctl_elem_id id;
781 memset(&id, 0, sizeof(id));
782 sprintf(id.name, "%s %s Volume", type, dir);
783 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
784 if (snd_ctl_find_id(codec->bus->card, &id))
785 return 1;
786 sprintf(id.name, "%s %s Switch", type, dir);
787 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
788 if (snd_ctl_find_id(codec->bus->card, &id))
789 return 1;
790 return 0;
791}
792
793/*
794 * build output mixer controls
795 */
796static int create_output_mixers(struct hda_codec *codec, const char **names)
797{
798 struct hda_gspec *spec = codec->spec;
799 int i, err;
800
801 for (i = 0; i < spec->pcm_vol_nodes; i++) {
802 err = create_mixer(codec, spec->pcm_vol[i].node,
803 spec->pcm_vol[i].index,
804 names[i], "Playback", 0);
805 if (err < 0)
806 return err;
807 }
808 return 0;
809}
810
811static int build_output_controls(struct hda_codec *codec)
812{
813 struct hda_gspec *spec = codec->spec;
814 static const char *types_speaker[] = { "Speaker", "Headphone" };
815 static const char *types_line[] = { "Front", "Headphone" };
816
817 switch (spec->pcm_vol_nodes) {
818 case 1:
819 return create_mixer(codec, spec->pcm_vol[0].node,
820 spec->pcm_vol[0].index,
821 "Master", "Playback", 0);
822 case 2:
823 if (defcfg_type(spec->out_pin_node[0]) == AC_JACK_SPEAKER)
824 return create_output_mixers(codec, types_speaker);
825 else
826 return create_output_mixers(codec, types_line);
827 }
828 return 0;
829}
830
831/* create capture volume/switch */
832static int build_input_controls(struct hda_codec *codec)
833{
834 struct hda_gspec *spec = codec->spec;
835 struct hda_gnode *adc_node = spec->adc_node;
836 int i, err;
837 static struct snd_kcontrol_new cap_sel = {
838 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
839 .name = "Capture Source",
840 .info = capture_source_info,
841 .get = capture_source_get,
842 .put = capture_source_put,
843 };
844
845 if (! adc_node || ! spec->input_mux.num_items)
846 return 0; /* not found */
847
848 spec->cur_cap_src = 0;
849 select_input_connection(codec, adc_node,
850 spec->input_mux.items[0].index);
851
852 /* create capture volume and switch controls if the ADC has an amp */
853 /* do we have only a single item? */
854 if (spec->input_mux.num_items == 1) {
855 err = create_mixer(codec, adc_node,
856 spec->input_mux.items[0].index,
857 NULL, "Capture", 0);
858 if (err < 0)
859 return err;
860 return 0;
861 }
862
863 /* create input MUX if multiple sources are available */
864 err = snd_hda_ctl_add(codec, spec->adc_node->nid,
865 snd_ctl_new1(&cap_sel, codec));
866 if (err < 0)
867 return err;
868
869 /* no volume control? */
870 if (! (adc_node->wid_caps & AC_WCAP_IN_AMP) ||
871 ! (adc_node->amp_in_caps & AC_AMPCAP_NUM_STEPS))
872 return 0;
873
874 for (i = 0; i < spec->input_mux.num_items; i++) {
875 struct snd_kcontrol_new knew;
876 char name[32];
877 sprintf(name, "%s Capture Volume",
878 spec->input_mux.items[i].label);
879 knew = (struct snd_kcontrol_new)
880 HDA_CODEC_VOLUME(name, adc_node->nid,
881 spec->input_mux.items[i].index,
882 HDA_INPUT);
883 err = snd_hda_ctl_add(codec, adc_node->nid,
884 snd_ctl_new1(&knew, codec));
885 if (err < 0)
886 return err;
887 }
888
889 return 0;
890}
891
892
893/*
894 * parse the nodes recursively until reach to the output PIN.
895 *
896 * returns 0 - if not found,
897 * 1 - if found, but no mixer is created
898 * 2 - if found and mixer was already created, (just skip)
899 * a negative error code
900 */
901static int parse_loopback_path(struct hda_codec *codec, struct hda_gspec *spec,
902 struct hda_gnode *node, struct hda_gnode *dest_node,
903 const char *type)
904{
905 int i, err;
906
907 if (node->checked)
908 return 0;
909
910 node->checked = 1;
911 if (node == dest_node) {
912 /* loopback connection found */
913 return 1;
914 }
915
916 for (i = 0; i < node->nconns; i++) {
917 struct hda_gnode *child = hda_get_node(spec, node->conn_list[i]);
918 if (! child)
919 continue;
920 err = parse_loopback_path(codec, spec, child, dest_node, type);
921 if (err < 0)
922 return err;
923 else if (err >= 1) {
924 if (err == 1) {
925 err = create_mixer(codec, node, i, type,
926 "Playback", 1);
927 if (err < 0)
928 return err;
929 if (err > 0)
930 return 2; /* ok, created */
931 /* not created, maybe in the lower path */
932 err = 1;
933 }
934 /* connect and unmute */
935 if (node->nconns > 1)
936 select_input_connection(codec, node, i);
937 unmute_input(codec, node, i);
938 unmute_output(codec, node);
939 return err;
940 }
941 }
942 return 0;
943}
944
945/*
946 * parse the tree and build the loopback controls
947 */
948static int build_loopback_controls(struct hda_codec *codec)
949{
950 struct hda_gspec *spec = codec->spec;
951 struct hda_gnode *node;
952 int err;
953 const char *type;
954
955 if (! spec->out_pin_node[0])
956 return 0;
957
958 list_for_each_entry(node, &spec->nid_list, list) {
959 if (node->type != AC_WID_PIN)
960 continue;
961 /* input capable? */
962 if (! (node->pin_caps & AC_PINCAP_IN))
963 return 0;
964 type = get_input_type(node, NULL);
965 if (type) {
966 if (check_existing_control(codec, type, "Playback"))
967 continue;
968 clear_check_flags(spec);
969 err = parse_loopback_path(codec, spec,
970 spec->out_pin_node[0],
971 node, type);
972 if (err < 0)
973 return err;
974 if (! err)
975 continue;
976 }
977 }
978 return 0;
979}
980
981/*
982 * build mixer controls
983 */
984static int build_generic_controls(struct hda_codec *codec)
985{
986 int err;
987
988 if ((err = build_input_controls(codec)) < 0 ||
989 (err = build_output_controls(codec)) < 0 ||
990 (err = build_loopback_controls(codec)) < 0)
991 return err;
992
993 return 0;
994}
995
996/*
997 * PCM
998 */
999static struct hda_pcm_stream generic_pcm_playback = {
1000 .substreams = 1,
1001 .channels_min = 2,
1002 .channels_max = 2,
1003};
1004
1005static int generic_pcm2_prepare(struct hda_pcm_stream *hinfo,
1006 struct hda_codec *codec,
1007 unsigned int stream_tag,
1008 unsigned int format,
1009 struct snd_pcm_substream *substream)
1010{
1011 struct hda_gspec *spec = codec->spec;
1012
1013 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
1014 snd_hda_codec_setup_stream(codec, spec->dac_node[1]->nid,
1015 stream_tag, 0, format);
1016 return 0;
1017}
1018
1019static int generic_pcm2_cleanup(struct hda_pcm_stream *hinfo,
1020 struct hda_codec *codec,
1021 struct snd_pcm_substream *substream)
1022{
1023 struct hda_gspec *spec = codec->spec;
1024
1025 snd_hda_codec_cleanup_stream(codec, hinfo->nid);
1026 snd_hda_codec_cleanup_stream(codec, spec->dac_node[1]->nid);
1027 return 0;
1028}
1029
1030static int build_generic_pcms(struct hda_codec *codec)
1031{
1032 struct hda_gspec *spec = codec->spec;
1033 struct hda_pcm *info = &spec->pcm_rec;
1034
1035 if (! spec->dac_node[0] && ! spec->adc_node) {
1036 snd_printd("hda_generic: no PCM found\n");
1037 return 0;
1038 }
1039
1040 codec->num_pcms = 1;
1041 codec->pcm_info = info;
1042
1043 info->name = "HDA Generic";
1044 if (spec->dac_node[0]) {
1045 info->stream[0] = generic_pcm_playback;
1046 info->stream[0].nid = spec->dac_node[0]->nid;
1047 if (spec->dac_node[1]) {
1048 info->stream[0].ops.prepare = generic_pcm2_prepare;
1049 info->stream[0].ops.cleanup = generic_pcm2_cleanup;
1050 }
1051 }
1052 if (spec->adc_node) {
1053 info->stream[1] = generic_pcm_playback;
1054 info->stream[1].nid = spec->adc_node->nid;
1055 }
1056
1057 return 0;
1058}
1059
1060#ifdef CONFIG_SND_HDA_POWER_SAVE
1061static int generic_check_power_status(struct hda_codec *codec, hda_nid_t nid)
1062{
1063 struct hda_gspec *spec = codec->spec;
1064 return snd_hda_check_amp_list_power(codec, &spec->loopback, nid);
1065}
1066#endif
1067
1068
1069/*
1070 */
1071static struct hda_codec_ops generic_patch_ops = {
1072 .build_controls = build_generic_controls,
1073 .build_pcms = build_generic_pcms,
1074 .free = snd_hda_generic_free,
1075#ifdef CONFIG_SND_HDA_POWER_SAVE
1076 .check_power_status = generic_check_power_status,
1077#endif
1078};
1079
1080/*
1081 * the generic parser
1082 */
1083int snd_hda_parse_generic_codec(struct hda_codec *codec)
1084{
1085 struct hda_gspec *spec;
1086 int err;
1087
1088 if(!codec->afg)
1089 return 0;
1090
1091 spec = kzalloc(sizeof(*spec), GFP_KERNEL);
1092 if (spec == NULL) {
1093 printk(KERN_ERR "hda_generic: can't allocate spec\n");
1094 return -ENOMEM;
1095 }
1096 codec->spec = spec;
1097 INIT_LIST_HEAD(&spec->nid_list);
1098
1099 if ((err = build_afg_tree(codec)) < 0)
1100 goto error;
1101
1102 if ((err = parse_input(codec)) < 0 ||
1103 (err = parse_output(codec)) < 0)
1104 goto error;
1105
1106 codec->patch_ops = generic_patch_ops;
1107
1108 return 0;
1109
1110 error:
1111 snd_hda_generic_free(codec);
1112 return err;
1113}
1114EXPORT_SYMBOL(snd_hda_parse_generic_codec);
generated by cgit v1.2.3 (git 2.39.1) at 2026-09-20 15:31:00 +0000