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TOMOYO Linux Cross Reference
Linux/sound/pci/hda/hda_local.h

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  1 /*
  2  * Universal Interface for Intel High Definition Audio Codec
  3  *
  4  * Local helper functions
  5  *
  6  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
  7  *
  8  *  This program is free software; you can redistribute it and/or modify it
  9  *  under the terms of the GNU General Public License as published by the Free
 10  *  Software Foundation; either version 2 of the License, or (at your option)
 11  *  any later version.
 12  *
 13  *  This program is distributed in the hope that it will be useful, but WITHOUT
 14  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 15  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 16  *  more details.
 17  *
 18  *  You should have received a copy of the GNU General Public License along with
 19  *  this program; if not, write to the Free Software Foundation, Inc., 59
 20  *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 21  */
 22 
 23 #ifndef __SOUND_HDA_LOCAL_H
 24 #define __SOUND_HDA_LOCAL_H
 25 
 26 /* We abuse kcontrol_new.subdev field to pass the NID corresponding to
 27  * the given new control.  If id.subdev has a bit flag HDA_SUBDEV_NID_FLAG,
 28  * snd_hda_ctl_add() takes the lower-bit subdev value as a valid NID.
 29  * 
 30  * Note that the subdevice field is cleared again before the real registration
 31  * in snd_hda_ctl_add(), so that this value won't appear in the outside.
 32  */
 33 #define HDA_SUBDEV_NID_FLAG     (1U << 31)
 34 #define HDA_SUBDEV_AMP_FLAG     (1U << 30)
 35 
 36 /*
 37  * for mixer controls
 38  */
 39 #define HDA_COMPOSE_AMP_VAL_OFS(nid,chs,idx,dir,ofs)            \
 40         ((nid) | ((chs)<<16) | ((dir)<<18) | ((idx)<<19) | ((ofs)<<23))
 41 #define HDA_AMP_VAL_MIN_MUTE (1<<29)
 42 #define HDA_COMPOSE_AMP_VAL(nid,chs,idx,dir) \
 43         HDA_COMPOSE_AMP_VAL_OFS(nid, chs, idx, dir, 0)
 44 /* mono volume with index (index=0,1,...) (channel=1,2) */
 45 #define HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, channel, xindex, dir, flags) \
 46         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx,  \
 47           .subdevice = HDA_SUBDEV_AMP_FLAG, \
 48           .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
 49                     SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 50                     SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \
 51           .info = snd_hda_mixer_amp_volume_info, \
 52           .get = snd_hda_mixer_amp_volume_get, \
 53           .put = snd_hda_mixer_amp_volume_put, \
 54           .tlv = { .c = snd_hda_mixer_amp_tlv },                \
 55           .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, dir) | flags }
 56 /* stereo volume with index */
 57 #define HDA_CODEC_VOLUME_IDX(xname, xcidx, nid, xindex, direction) \
 58         HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, 3, xindex, direction, 0)
 59 /* mono volume */
 60 #define HDA_CODEC_VOLUME_MONO(xname, nid, channel, xindex, direction) \
 61         HDA_CODEC_VOLUME_MONO_IDX(xname, 0, nid, channel, xindex, direction, 0)
 62 /* stereo volume */
 63 #define HDA_CODEC_VOLUME(xname, nid, xindex, direction) \
 64         HDA_CODEC_VOLUME_MONO(xname, nid, 3, xindex, direction)
 65 /* stereo volume with min=mute */
 66 #define HDA_CODEC_VOLUME_MIN_MUTE(xname, nid, xindex, direction) \
 67         HDA_CODEC_VOLUME_MONO_IDX(xname, 0, nid, 3, xindex, direction, \
 68                                   HDA_AMP_VAL_MIN_MUTE)
 69 /* mono mute switch with index (index=0,1,...) (channel=1,2) */
 70 #define HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
 71         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
 72           .subdevice = HDA_SUBDEV_AMP_FLAG, \
 73           .info = snd_hda_mixer_amp_switch_info, \
 74           .get = snd_hda_mixer_amp_switch_get, \
 75           .put = snd_hda_mixer_amp_switch_put, \
 76           .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
 77 /* stereo mute switch with index */
 78 #define HDA_CODEC_MUTE_IDX(xname, xcidx, nid, xindex, direction) \
 79         HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, 3, xindex, direction)
 80 /* mono mute switch */
 81 #define HDA_CODEC_MUTE_MONO(xname, nid, channel, xindex, direction) \
 82         HDA_CODEC_MUTE_MONO_IDX(xname, 0, nid, channel, xindex, direction)
 83 /* stereo mute switch */
 84 #define HDA_CODEC_MUTE(xname, nid, xindex, direction) \
 85         HDA_CODEC_MUTE_MONO(xname, nid, 3, xindex, direction)
 86 #ifdef CONFIG_SND_HDA_INPUT_BEEP
 87 /* special beep mono mute switch with index (index=0,1,...) (channel=1,2) */
 88 #define HDA_CODEC_MUTE_BEEP_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
 89         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
 90           .subdevice = HDA_SUBDEV_AMP_FLAG, \
 91           .info = snd_hda_mixer_amp_switch_info, \
 92           .get = snd_hda_mixer_amp_switch_get_beep, \
 93           .put = snd_hda_mixer_amp_switch_put_beep, \
 94           .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
 95 #else
 96 /* no digital beep - just the standard one */
 97 #define HDA_CODEC_MUTE_BEEP_MONO_IDX(xname, xcidx, nid, ch, xidx, dir) \
 98         HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, ch, xidx, dir)
 99 #endif /* CONFIG_SND_HDA_INPUT_BEEP */
100 /* special beep mono mute switch */
101 #define HDA_CODEC_MUTE_BEEP_MONO(xname, nid, channel, xindex, direction) \
102         HDA_CODEC_MUTE_BEEP_MONO_IDX(xname, 0, nid, channel, xindex, direction)
103 /* special beep stereo mute switch */
104 #define HDA_CODEC_MUTE_BEEP(xname, nid, xindex, direction) \
105         HDA_CODEC_MUTE_BEEP_MONO(xname, nid, 3, xindex, direction)
106 
107 extern const char *snd_hda_pcm_type_name[];
108 
109 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
110                                   struct snd_ctl_elem_info *uinfo);
111 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
112                                  struct snd_ctl_elem_value *ucontrol);
113 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
114                                  struct snd_ctl_elem_value *ucontrol);
115 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
116                           unsigned int size, unsigned int __user *tlv);
117 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
118                                   struct snd_ctl_elem_info *uinfo);
119 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
120                                  struct snd_ctl_elem_value *ucontrol);
121 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
122                                  struct snd_ctl_elem_value *ucontrol);
123 #ifdef CONFIG_SND_HDA_INPUT_BEEP
124 int snd_hda_mixer_amp_switch_get_beep(struct snd_kcontrol *kcontrol,
125                                       struct snd_ctl_elem_value *ucontrol);
126 int snd_hda_mixer_amp_switch_put_beep(struct snd_kcontrol *kcontrol,
127                                       struct snd_ctl_elem_value *ucontrol);
128 #endif
129 /* lowlevel accessor with caching; use carefully */
130 int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
131                            int direction, int index);
132 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
133                              int direction, int idx, int mask, int val);
134 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
135                              int dir, int idx, int mask, int val);
136 int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
137                            int direction, int idx, int mask, int val);
138 int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
139                                   int dir, int idx, int mask, int val);
140 void snd_hda_codec_resume_amp(struct hda_codec *codec);
141 
142 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
143                              unsigned int *tlv);
144 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
145                                             const char *name);
146 int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
147                           unsigned int *tlv, const char * const *slaves,
148                           const char *suffix, bool init_slave_vol,
149                           struct snd_kcontrol **ctl_ret);
150 #define snd_hda_add_vmaster(codec, name, tlv, slaves, suffix) \
151         __snd_hda_add_vmaster(codec, name, tlv, slaves, suffix, true, NULL)
152 int snd_hda_codec_reset(struct hda_codec *codec);
153 
154 enum {
155         HDA_VMUTE_OFF,
156         HDA_VMUTE_ON,
157         HDA_VMUTE_FOLLOW_MASTER,
158 };
159 
160 struct hda_vmaster_mute_hook {
161         /* below two fields must be filled by the caller of
162          * snd_hda_add_vmaster_hook() beforehand
163          */
164         struct snd_kcontrol *sw_kctl;
165         void (*hook)(void *, int);
166         /* below are initialized automatically */
167         unsigned int mute_mode; /* HDA_VMUTE_XXX */
168         struct hda_codec *codec;
169 };
170 
171 int snd_hda_add_vmaster_hook(struct hda_codec *codec,
172                              struct hda_vmaster_mute_hook *hook,
173                              bool expose_enum_ctl);
174 void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook);
175 
176 /* amp value bits */
177 #define HDA_AMP_MUTE    0x80
178 #define HDA_AMP_UNMUTE  0x00
179 #define HDA_AMP_VOLMASK 0x7f
180 
181 /* mono switch binding multiple inputs */
182 #define HDA_BIND_MUTE_MONO(xname, nid, channel, indices, direction) \
183         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0,  \
184           .info = snd_hda_mixer_amp_switch_info, \
185           .get = snd_hda_mixer_bind_switch_get, \
186           .put = snd_hda_mixer_bind_switch_put, \
187           .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, indices, direction) }
188 
189 /* stereo switch binding multiple inputs */
190 #define HDA_BIND_MUTE(xname,nid,indices,dir) \
191         HDA_BIND_MUTE_MONO(xname,nid,3,indices,dir)
192 
193 int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
194                                   struct snd_ctl_elem_value *ucontrol);
195 int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
196                                   struct snd_ctl_elem_value *ucontrol);
197 
198 /* more generic bound controls */
199 struct hda_ctl_ops {
200         snd_kcontrol_info_t *info;
201         snd_kcontrol_get_t *get;
202         snd_kcontrol_put_t *put;
203         snd_kcontrol_tlv_rw_t *tlv;
204 };
205 
206 extern struct hda_ctl_ops snd_hda_bind_vol;     /* for bind-volume with TLV */
207 extern struct hda_ctl_ops snd_hda_bind_sw;      /* for bind-switch */
208 
209 struct hda_bind_ctls {
210         struct hda_ctl_ops *ops;
211         unsigned long values[];
212 };
213 
214 int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
215                                  struct snd_ctl_elem_info *uinfo);
216 int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
217                                 struct snd_ctl_elem_value *ucontrol);
218 int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
219                                 struct snd_ctl_elem_value *ucontrol);
220 int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
221                            unsigned int size, unsigned int __user *tlv);
222 
223 #define HDA_BIND_VOL(xname, bindrec) \
224         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
225           .name = xname, \
226           .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |\
227                           SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
228                           SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK,\
229           .info = snd_hda_mixer_bind_ctls_info,\
230           .get =  snd_hda_mixer_bind_ctls_get,\
231           .put = snd_hda_mixer_bind_ctls_put,\
232           .tlv = { .c = snd_hda_mixer_bind_tlv },\
233           .private_value = (long) (bindrec) }
234 #define HDA_BIND_SW(xname, bindrec) \
235         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
236           .name = xname, \
237           .info = snd_hda_mixer_bind_ctls_info,\
238           .get =  snd_hda_mixer_bind_ctls_get,\
239           .put = snd_hda_mixer_bind_ctls_put,\
240           .private_value = (long) (bindrec) }
241 
242 /*
243  * SPDIF I/O
244  */
245 int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
246                                 hda_nid_t associated_nid,
247                                 hda_nid_t cvt_nid, int type);
248 #define snd_hda_create_spdif_out_ctls(codec, anid, cnid) \
249         snd_hda_create_dig_out_ctls(codec, anid, cnid, HDA_PCM_TYPE_SPDIF)
250 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid);
251 
252 /*
253  * input MUX helper
254  */
255 #define HDA_MAX_NUM_INPUTS      16
256 struct hda_input_mux_item {
257         char label[32];
258         unsigned int index;
259 };
260 struct hda_input_mux {
261         unsigned int num_items;
262         struct hda_input_mux_item items[HDA_MAX_NUM_INPUTS];
263 };
264 
265 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
266                            struct snd_ctl_elem_info *uinfo);
267 int snd_hda_input_mux_put(struct hda_codec *codec,
268                           const struct hda_input_mux *imux,
269                           struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
270                           unsigned int *cur_val);
271 int snd_hda_add_imux_item(struct hda_codec *codec,
272                           struct hda_input_mux *imux, const char *label,
273                           int index, int *type_index_ret);
274 
275 /*
276  * Channel mode helper
277  */
278 struct hda_channel_mode {
279         int channels;
280         const struct hda_verb *sequence;
281 };
282 
283 int snd_hda_ch_mode_info(struct hda_codec *codec,
284                          struct snd_ctl_elem_info *uinfo,
285                          const struct hda_channel_mode *chmode,
286                          int num_chmodes);
287 int snd_hda_ch_mode_get(struct hda_codec *codec,
288                         struct snd_ctl_elem_value *ucontrol,
289                         const struct hda_channel_mode *chmode,
290                         int num_chmodes,
291                         int max_channels);
292 int snd_hda_ch_mode_put(struct hda_codec *codec,
293                         struct snd_ctl_elem_value *ucontrol,
294                         const struct hda_channel_mode *chmode,
295                         int num_chmodes,
296                         int *max_channelsp);
297 
298 /*
299  * Multi-channel / digital-out PCM helper
300  */
301 
302 enum { HDA_FRONT, HDA_REAR, HDA_CLFE, HDA_SIDE }; /* index for dac_nidx */
303 enum { HDA_DIG_NONE, HDA_DIG_EXCLUSIVE, HDA_DIG_ANALOG_DUP }; /* dig_out_used */
304 
305 #define HDA_MAX_OUTS    5
306 
307 struct hda_multi_out {
308         int num_dacs;           /* # of DACs, must be more than 1 */
309         const hda_nid_t *dac_nids;      /* DAC list */
310         hda_nid_t hp_nid;       /* optional DAC for HP, 0 when not exists */
311         hda_nid_t hp_out_nid[HDA_MAX_OUTS];     /* DACs for multiple HPs */
312         hda_nid_t extra_out_nid[HDA_MAX_OUTS];  /* other (e.g. speaker) DACs */
313         hda_nid_t dig_out_nid;  /* digital out audio widget */
314         const hda_nid_t *slave_dig_outs;
315         int max_channels;       /* currently supported analog channels */
316         int dig_out_used;       /* current usage of digital out (HDA_DIG_XXX) */
317         int no_share_stream;    /* don't share a stream with multiple pins */
318         int share_spdif;        /* share SPDIF pin */
319         /* PCM information for both analog and SPDIF DACs */
320         unsigned int analog_rates;
321         unsigned int analog_maxbps;
322         u64 analog_formats;
323         unsigned int spdif_rates;
324         unsigned int spdif_maxbps;
325         u64 spdif_formats;
326 };
327 
328 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
329                                   struct hda_multi_out *mout);
330 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
331                                struct hda_multi_out *mout);
332 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
333                                 struct hda_multi_out *mout);
334 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
335                                   struct hda_multi_out *mout,
336                                   unsigned int stream_tag,
337                                   unsigned int format,
338                                   struct snd_pcm_substream *substream);
339 int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
340                                   struct hda_multi_out *mout);
341 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
342                                   struct hda_multi_out *mout,
343                                   struct snd_pcm_substream *substream,
344                                   struct hda_pcm_stream *hinfo);
345 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
346                                      struct hda_multi_out *mout,
347                                      unsigned int stream_tag,
348                                      unsigned int format,
349                                      struct snd_pcm_substream *substream);
350 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
351                                      struct hda_multi_out *mout);
352 
353 /*
354  * generic codec parser
355  */
356 int snd_hda_parse_generic_codec(struct hda_codec *codec);
357 int snd_hda_parse_hdmi_codec(struct hda_codec *codec);
358 
359 /*
360  * generic proc interface
361  */
362 #ifdef CONFIG_PROC_FS
363 int snd_hda_codec_proc_new(struct hda_codec *codec);
364 #else
365 static inline int snd_hda_codec_proc_new(struct hda_codec *codec) { return 0; }
366 #endif
367 
368 #define SND_PRINT_BITS_ADVISED_BUFSIZE  16
369 void snd_print_pcm_bits(int pcm, char *buf, int buflen);
370 
371 /*
372  * Misc
373  */
374 int snd_hda_add_new_ctls(struct hda_codec *codec,
375                          const struct snd_kcontrol_new *knew);
376 
377 /*
378  * Fix-up pin default configurations and add default verbs
379  */
380 
381 struct hda_pintbl {
382         hda_nid_t nid;
383         u32 val;
384 };
385 
386 struct hda_model_fixup {
387         const int id;
388         const char *name;
389 };
390 
391 struct hda_fixup {
392         int type;
393         bool chained:1;         /* call the chained fixup(s) after this */
394         bool chained_before:1;  /* call the chained fixup(s) before this */
395         int chain_id;
396         union {
397                 const struct hda_pintbl *pins;
398                 const struct hda_verb *verbs;
399                 void (*func)(struct hda_codec *codec,
400                              const struct hda_fixup *fix,
401                              int action);
402         } v;
403 };
404 
405 struct snd_hda_pin_quirk {
406         unsigned int codec;             /* Codec vendor/device ID */
407         unsigned short subvendor;       /* PCI subvendor ID */
408         const struct hda_pintbl *pins;  /* list of matching pins */
409 #ifdef CONFIG_SND_DEBUG_VERBOSE
410         const char *name;
411 #endif
412         int value;                      /* quirk value */
413 };
414 
415 #ifdef CONFIG_SND_DEBUG_VERBOSE
416 
417 #define SND_HDA_PIN_QUIRK(_codec, _subvendor, _name, _value, _pins...) \
418         { .codec = _codec,\
419           .subvendor = _subvendor,\
420           .name = _name,\
421           .value = _value,\
422           .pins = (const struct hda_pintbl[]) { _pins, {0, 0}} \
423         }
424 #else
425 
426 #define SND_HDA_PIN_QUIRK(_codec, _subvendor, _name, _value, _pins...) \
427         { .codec = _codec,\
428           .subvendor = _subvendor,\
429           .value = _value,\
430           .pins = (const struct hda_pintbl[]) { _pins, {0, 0}} \
431         }
432 
433 #endif
434 
435 #define HDA_FIXUP_ID_NOT_SET -1
436 #define HDA_FIXUP_ID_NO_FIXUP -2
437 
438 /* fixup types */
439 enum {
440         HDA_FIXUP_INVALID,
441         HDA_FIXUP_PINS,
442         HDA_FIXUP_VERBS,
443         HDA_FIXUP_FUNC,
444         HDA_FIXUP_PINCTLS,
445 };
446 
447 /* fixup action definitions */
448 enum {
449         HDA_FIXUP_ACT_PRE_PROBE,
450         HDA_FIXUP_ACT_PROBE,
451         HDA_FIXUP_ACT_INIT,
452         HDA_FIXUP_ACT_BUILD,
453         HDA_FIXUP_ACT_FREE,
454 };
455 
456 int snd_hda_add_verbs(struct hda_codec *codec, const struct hda_verb *list);
457 void snd_hda_apply_verbs(struct hda_codec *codec);
458 void snd_hda_apply_pincfgs(struct hda_codec *codec,
459                            const struct hda_pintbl *cfg);
460 void snd_hda_apply_fixup(struct hda_codec *codec, int action);
461 void snd_hda_pick_fixup(struct hda_codec *codec,
462                         const struct hda_model_fixup *models,
463                         const struct snd_pci_quirk *quirk,
464                         const struct hda_fixup *fixlist);
465 void snd_hda_pick_pin_fixup(struct hda_codec *codec,
466                             const struct snd_hda_pin_quirk *pin_quirk,
467                             const struct hda_fixup *fixlist);
468 
469 
470 /*
471  * unsolicited event handler
472  */
473 
474 #define HDA_UNSOL_QUEUE_SIZE    64
475 
476 struct hda_bus_unsolicited {
477         /* ring buffer */
478         u32 queue[HDA_UNSOL_QUEUE_SIZE * 2];
479         unsigned int rp, wp;
480 
481         /* workqueue */
482         struct work_struct work;
483         struct hda_bus *bus;
484 };
485 
486 /* helper macros to retrieve pin default-config values */
487 #define get_defcfg_connect(cfg) \
488         ((cfg & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT)
489 #define get_defcfg_association(cfg) \
490         ((cfg & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT)
491 #define get_defcfg_location(cfg) \
492         ((cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT)
493 #define get_defcfg_sequence(cfg) \
494         (cfg & AC_DEFCFG_SEQUENCE)
495 #define get_defcfg_device(cfg) \
496         ((cfg & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT)
497 #define get_defcfg_misc(cfg) \
498         ((cfg & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT)
499 
500 /* amp values */
501 #define AMP_IN_MUTE(idx)        (0x7080 | ((idx)<<8))
502 #define AMP_IN_UNMUTE(idx)      (0x7000 | ((idx)<<8))
503 #define AMP_OUT_MUTE            0xb080
504 #define AMP_OUT_UNMUTE          0xb000
505 #define AMP_OUT_ZERO            0xb000
506 /* pinctl values */
507 #define PIN_IN                  (AC_PINCTL_IN_EN)
508 #define PIN_VREFHIZ             (AC_PINCTL_IN_EN | AC_PINCTL_VREF_HIZ)
509 #define PIN_VREF50              (AC_PINCTL_IN_EN | AC_PINCTL_VREF_50)
510 #define PIN_VREFGRD             (AC_PINCTL_IN_EN | AC_PINCTL_VREF_GRD)
511 #define PIN_VREF80              (AC_PINCTL_IN_EN | AC_PINCTL_VREF_80)
512 #define PIN_VREF100             (AC_PINCTL_IN_EN | AC_PINCTL_VREF_100)
513 #define PIN_OUT                 (AC_PINCTL_OUT_EN)
514 #define PIN_HP                  (AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN)
515 #define PIN_HP_AMP              (AC_PINCTL_HP_EN)
516 
517 unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin);
518 unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
519                                      hda_nid_t pin, unsigned int val);
520 int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
521                          unsigned int val, bool cached);
522 
523 /**
524  * _snd_hda_set_pin_ctl - Set a pin-control value safely
525  * @codec: the codec instance
526  * @pin: the pin NID to set the control
527  * @val: the pin-control value (AC_PINCTL_* bits)
528  *
529  * This function sets the pin-control value to the given pin, but
530  * filters out the invalid pin-control bits when the pin has no such
531  * capabilities.  For example, when PIN_HP is passed but the pin has no
532  * HP-drive capability, the HP bit is omitted.
533  *
534  * The function doesn't check the input VREF capability bits, though.
535  * Use snd_hda_get_default_vref() to guess the right value.
536  * Also, this function is only for analog pins, not for HDMI pins.
537  */
538 static inline int
539 snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, unsigned int val)
540 {
541         return _snd_hda_set_pin_ctl(codec, pin, val, false);
542 }
543 
544 /**
545  * snd_hda_set_pin_ctl_cache - Set a pin-control value safely
546  * @codec: the codec instance
547  * @pin: the pin NID to set the control
548  * @val: the pin-control value (AC_PINCTL_* bits)
549  *
550  * Just like snd_hda_set_pin_ctl() but write to cache as well.
551  */
552 static inline int
553 snd_hda_set_pin_ctl_cache(struct hda_codec *codec, hda_nid_t pin,
554                           unsigned int val)
555 {
556         return _snd_hda_set_pin_ctl(codec, pin, val, true);
557 }
558 
559 int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid);
560 int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid,
561                                  unsigned int val);
562 
563 /*
564  * get widget capabilities
565  */
566 static inline u32 get_wcaps(struct hda_codec *codec, hda_nid_t nid)
567 {
568         if (nid < codec->start_nid ||
569             nid >= codec->start_nid + codec->num_nodes)
570                 return 0;
571         return codec->wcaps[nid - codec->start_nid];
572 }
573 
574 /* get the widget type from widget capability bits */
575 static inline int get_wcaps_type(unsigned int wcaps)
576 {
577         if (!wcaps)
578                 return -1; /* invalid type */
579         return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
580 }
581 
582 static inline unsigned int get_wcaps_channels(u32 wcaps)
583 {
584         unsigned int chans;
585 
586         chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13;
587         chans = ((chans << 1) | 1) + 1;
588 
589         return chans;
590 }
591 
592 static inline void snd_hda_override_wcaps(struct hda_codec *codec,
593                                           hda_nid_t nid, u32 val)
594 {
595         if (nid >= codec->start_nid &&
596             nid < codec->start_nid + codec->num_nodes)
597                 codec->wcaps[nid - codec->start_nid] = val;
598 }
599 
600 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction);
601 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
602                               unsigned int caps);
603 u32 snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid);
604 int snd_hda_override_pin_caps(struct hda_codec *codec, hda_nid_t nid,
605                               unsigned int caps);
606 bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
607                            int dir, unsigned int bits);
608 
609 #define nid_has_mute(codec, nid, dir) \
610         snd_hda_check_amp_caps(codec, nid, dir, (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE))
611 #define nid_has_volume(codec, nid, dir) \
612         snd_hda_check_amp_caps(codec, nid, dir, AC_AMPCAP_NUM_STEPS)
613 
614 
615 /* flags for hda_nid_item */
616 #define HDA_NID_ITEM_AMP        (1<<0)
617 
618 struct hda_nid_item {
619         struct snd_kcontrol *kctl;
620         unsigned int index;
621         hda_nid_t nid;
622         unsigned short flags;
623 };
624 
625 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
626                     struct snd_kcontrol *kctl);
627 int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
628                     unsigned int index, hda_nid_t nid);
629 void snd_hda_ctls_clear(struct hda_codec *codec);
630 
631 /*
632  * hwdep interface
633  */
634 #ifdef CONFIG_SND_HDA_HWDEP
635 int snd_hda_create_hwdep(struct hda_codec *codec);
636 #else
637 static inline int snd_hda_create_hwdep(struct hda_codec *codec) { return 0; }
638 #endif
639 
640 void snd_hda_sysfs_init(struct hda_codec *codec);
641 void snd_hda_sysfs_clear(struct hda_codec *codec);
642 
643 extern const struct attribute_group *snd_hda_dev_attr_groups[];
644 
645 #ifdef CONFIG_SND_HDA_RECONFIG
646 const char *snd_hda_get_hint(struct hda_codec *codec, const char *key);
647 int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key);
648 int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp);
649 #else
650 static inline
651 const char *snd_hda_get_hint(struct hda_codec *codec, const char *key)
652 {
653         return NULL;
654 }
655 
656 static inline
657 int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key)
658 {
659         return -ENOENT;
660 }
661 
662 static inline
663 int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp)
664 {
665         return -ENOENT;
666 }
667 #endif
668 
669 /*
670  * power-management
671  */
672 
673 void snd_hda_schedule_power_save(struct hda_codec *codec);
674 
675 struct hda_amp_list {
676         hda_nid_t nid;
677         unsigned char dir;
678         unsigned char idx;
679 };
680 
681 struct hda_loopback_check {
682         const struct hda_amp_list *amplist;
683         int power_on;
684 };
685 
686 int snd_hda_check_amp_list_power(struct hda_codec *codec,
687                                  struct hda_loopback_check *check,
688                                  hda_nid_t nid);
689 
690 /* check whether the actual power state matches with the target state */
691 static inline bool
692 snd_hda_check_power_state(struct hda_codec *codec, hda_nid_t nid,
693                           unsigned int target_state)
694 {
695         unsigned int state = snd_hda_codec_read(codec, nid, 0,
696                                                 AC_VERB_GET_POWER_STATE, 0);
697         if (state & AC_PWRST_ERROR)
698                 return true;
699         state = (state >> 4) & 0x0f;
700         return (state == target_state);
701 }
702 
703 unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
704                                              hda_nid_t nid,
705                                              unsigned int power_state);
706 
707 /*
708  * AMP control callbacks
709  */
710 /* retrieve parameters from private_value */
711 #define get_amp_nid_(pv)        ((pv) & 0xffff)
712 #define get_amp_nid(kc)         get_amp_nid_((kc)->private_value)
713 #define get_amp_channels(kc)    (((kc)->private_value >> 16) & 0x3)
714 #define get_amp_direction_(pv)  (((pv) >> 18) & 0x1)
715 #define get_amp_direction(kc)   get_amp_direction_((kc)->private_value)
716 #define get_amp_index_(pv)      (((pv) >> 19) & 0xf)
717 #define get_amp_index(kc)       get_amp_index_((kc)->private_value)
718 #define get_amp_offset(kc)      (((kc)->private_value >> 23) & 0x3f)
719 #define get_amp_min_mute(kc)    (((kc)->private_value >> 29) & 0x1)
720 
721 /*
722  * enum control helper
723  */
724 int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
725                              struct snd_ctl_elem_info *uinfo,
726                              int num_entries, const char * const *texts);
727 #define snd_hda_enum_bool_helper_info(kcontrol, uinfo) \
728         snd_hda_enum_helper_info(kcontrol, uinfo, 0, NULL)
729 
730 /*
731  * CEA Short Audio Descriptor data
732  */
733 struct cea_sad {
734         int     channels;
735         int     format;         /* (format == 0) indicates invalid SAD */
736         int     rates;
737         int     sample_bits;    /* for LPCM */
738         int     max_bitrate;    /* for AC3...ATRAC */
739         int     profile;        /* for WMAPRO */
740 };
741 
742 #define ELD_FIXED_BYTES 20
743 #define ELD_MAX_SIZE    256
744 #define ELD_MAX_MNL     16
745 #define ELD_MAX_SAD     16
746 
747 /*
748  * ELD: EDID Like Data
749  */
750 struct parsed_hdmi_eld {
751         /*
752          * all fields will be cleared before updating ELD
753          */
754         int     baseline_len;
755         int     eld_ver;
756         int     cea_edid_ver;
757         char    monitor_name[ELD_MAX_MNL + 1];
758         int     manufacture_id;
759         int     product_id;
760         u64     port_id;
761         int     support_hdcp;
762         int     support_ai;
763         int     conn_type;
764         int     aud_synch_delay;
765         int     spk_alloc;
766         int     sad_count;
767         struct cea_sad sad[ELD_MAX_SAD];
768 };
769 
770 struct hdmi_eld {
771         bool    monitor_present;
772         bool    eld_valid;
773         int     eld_size;
774         char    eld_buffer[ELD_MAX_SIZE];
775         struct parsed_hdmi_eld info;
776 };
777 
778 int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
779 int snd_hdmi_get_eld(struct hda_codec *codec, hda_nid_t nid,
780                      unsigned char *buf, int *eld_size);
781 int snd_hdmi_parse_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e,
782                        const unsigned char *buf, int size);
783 void snd_hdmi_show_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e);
784 void snd_hdmi_eld_update_pcm_info(struct parsed_hdmi_eld *e,
785                               struct hda_pcm_stream *hinfo);
786 
787 int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid,
788                          unsigned char *buf, int *eld_size,
789                          bool rev3_or_later);
790 
791 #ifdef CONFIG_PROC_FS
792 void snd_hdmi_print_eld_info(struct hdmi_eld *eld,
793                              struct snd_info_buffer *buffer);
794 void snd_hdmi_write_eld_info(struct hdmi_eld *eld,
795                              struct snd_info_buffer *buffer);
796 #endif
797 
798 #define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
799 void snd_print_channel_allocation(int spk_alloc, char *buf, int buflen);
800 
801 /*
802  */
803 #define codec_err(codec, fmt, args...) dev_err(&(codec)->dev, fmt, ##args)
804 #define codec_warn(codec, fmt, args...) dev_warn(&(codec)->dev, fmt, ##args)
805 #define codec_info(codec, fmt, args...) dev_info(&(codec)->dev, fmt, ##args)
806 #define codec_dbg(codec, fmt, args...) dev_dbg(&(codec)->dev, fmt, ##args)
807 
808 #endif /* __SOUND_HDA_LOCAL_H */
809 

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