xref: /openbmc/linux/sound/pci/hda/hda_local.h (revision 3b64b188)
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 #ifdef CONFIG_PM
137 void snd_hda_codec_resume_amp(struct hda_codec *codec);
138 #endif
139 
140 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
141 			     unsigned int *tlv);
142 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
143 					    const char *name);
144 int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
145 			  unsigned int *tlv, const char * const *slaves,
146 			  const char *suffix, bool init_slave_vol,
147 			  struct snd_kcontrol **ctl_ret);
148 #define snd_hda_add_vmaster(codec, name, tlv, slaves, suffix) \
149 	__snd_hda_add_vmaster(codec, name, tlv, slaves, suffix, true, NULL)
150 int snd_hda_codec_reset(struct hda_codec *codec);
151 
152 enum {
153 	HDA_VMUTE_OFF,
154 	HDA_VMUTE_ON,
155 	HDA_VMUTE_FOLLOW_MASTER,
156 };
157 
158 struct hda_vmaster_mute_hook {
159 	/* below two fields must be filled by the caller of
160 	 * snd_hda_add_vmaster_hook() beforehand
161 	 */
162 	struct snd_kcontrol *sw_kctl;
163 	void (*hook)(void *, int);
164 	/* below are initialized automatically */
165 	unsigned int mute_mode; /* HDA_VMUTE_XXX */
166 	struct hda_codec *codec;
167 };
168 
169 int snd_hda_add_vmaster_hook(struct hda_codec *codec,
170 			     struct hda_vmaster_mute_hook *hook,
171 			     bool expose_enum_ctl);
172 void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook);
173 
174 /* amp value bits */
175 #define HDA_AMP_MUTE	0x80
176 #define HDA_AMP_UNMUTE	0x00
177 #define HDA_AMP_VOLMASK	0x7f
178 
179 /* mono switch binding multiple inputs */
180 #define HDA_BIND_MUTE_MONO(xname, nid, channel, indices, direction) \
181 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0,  \
182 	  .info = snd_hda_mixer_amp_switch_info, \
183 	  .get = snd_hda_mixer_bind_switch_get, \
184 	  .put = snd_hda_mixer_bind_switch_put, \
185 	  .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, indices, direction) }
186 
187 /* stereo switch binding multiple inputs */
188 #define HDA_BIND_MUTE(xname,nid,indices,dir) \
189 	HDA_BIND_MUTE_MONO(xname,nid,3,indices,dir)
190 
191 int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
192 				  struct snd_ctl_elem_value *ucontrol);
193 int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
194 				  struct snd_ctl_elem_value *ucontrol);
195 
196 /* more generic bound controls */
197 struct hda_ctl_ops {
198 	snd_kcontrol_info_t *info;
199 	snd_kcontrol_get_t *get;
200 	snd_kcontrol_put_t *put;
201 	snd_kcontrol_tlv_rw_t *tlv;
202 };
203 
204 extern struct hda_ctl_ops snd_hda_bind_vol;	/* for bind-volume with TLV */
205 extern struct hda_ctl_ops snd_hda_bind_sw;	/* for bind-switch */
206 
207 struct hda_bind_ctls {
208 	struct hda_ctl_ops *ops;
209 	unsigned long values[];
210 };
211 
212 int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
213 				 struct snd_ctl_elem_info *uinfo);
214 int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
215 				struct snd_ctl_elem_value *ucontrol);
216 int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
217 				struct snd_ctl_elem_value *ucontrol);
218 int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
219 			   unsigned int size, unsigned int __user *tlv);
220 
221 #define HDA_BIND_VOL(xname, bindrec) \
222 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
223 	  .name = xname, \
224 	  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |\
225 			  SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
226 			  SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK,\
227 	  .info = snd_hda_mixer_bind_ctls_info,\
228 	  .get =  snd_hda_mixer_bind_ctls_get,\
229 	  .put = snd_hda_mixer_bind_ctls_put,\
230 	  .tlv = { .c = snd_hda_mixer_bind_tlv },\
231 	  .private_value = (long) (bindrec) }
232 #define HDA_BIND_SW(xname, bindrec) \
233 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
234 	  .name = xname, \
235 	  .info = snd_hda_mixer_bind_ctls_info,\
236 	  .get =  snd_hda_mixer_bind_ctls_get,\
237 	  .put = snd_hda_mixer_bind_ctls_put,\
238 	  .private_value = (long) (bindrec) }
239 
240 /*
241  * SPDIF I/O
242  */
243 int snd_hda_create_spdif_out_ctls(struct hda_codec *codec,
244 				  hda_nid_t associated_nid,
245 				  hda_nid_t cvt_nid);
246 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid);
247 
248 /*
249  * input MUX helper
250  */
251 #define HDA_MAX_NUM_INPUTS	16
252 struct hda_input_mux_item {
253 	char label[32];
254 	unsigned int index;
255 };
256 struct hda_input_mux {
257 	unsigned int num_items;
258 	struct hda_input_mux_item items[HDA_MAX_NUM_INPUTS];
259 };
260 
261 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
262 			   struct snd_ctl_elem_info *uinfo);
263 int snd_hda_input_mux_put(struct hda_codec *codec,
264 			  const struct hda_input_mux *imux,
265 			  struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
266 			  unsigned int *cur_val);
267 int snd_hda_add_imux_item(struct hda_input_mux *imux, const char *label,
268 			  int index, int *type_index_ret);
269 
270 /*
271  * Channel mode helper
272  */
273 struct hda_channel_mode {
274 	int channels;
275 	const struct hda_verb *sequence;
276 };
277 
278 int snd_hda_ch_mode_info(struct hda_codec *codec,
279 			 struct snd_ctl_elem_info *uinfo,
280 			 const struct hda_channel_mode *chmode,
281 			 int num_chmodes);
282 int snd_hda_ch_mode_get(struct hda_codec *codec,
283 			struct snd_ctl_elem_value *ucontrol,
284 			const struct hda_channel_mode *chmode,
285 			int num_chmodes,
286 			int max_channels);
287 int snd_hda_ch_mode_put(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_channelsp);
292 
293 /*
294  * Multi-channel / digital-out PCM helper
295  */
296 
297 enum { HDA_FRONT, HDA_REAR, HDA_CLFE, HDA_SIDE }; /* index for dac_nidx */
298 enum { HDA_DIG_NONE, HDA_DIG_EXCLUSIVE, HDA_DIG_ANALOG_DUP }; /* dig_out_used */
299 
300 #define HDA_MAX_OUTS	5
301 
302 struct hda_multi_out {
303 	int num_dacs;		/* # of DACs, must be more than 1 */
304 	const hda_nid_t *dac_nids;	/* DAC list */
305 	hda_nid_t hp_nid;	/* optional DAC for HP, 0 when not exists */
306 	hda_nid_t hp_out_nid[HDA_MAX_OUTS];	/* DACs for multiple HPs */
307 	hda_nid_t extra_out_nid[HDA_MAX_OUTS];	/* other (e.g. speaker) DACs */
308 	hda_nid_t dig_out_nid;	/* digital out audio widget */
309 	const hda_nid_t *slave_dig_outs;
310 	int max_channels;	/* currently supported analog channels */
311 	int dig_out_used;	/* current usage of digital out (HDA_DIG_XXX) */
312 	int no_share_stream;	/* don't share a stream with multiple pins */
313 	int share_spdif;	/* share SPDIF pin */
314 	/* PCM information for both analog and SPDIF DACs */
315 	unsigned int analog_rates;
316 	unsigned int analog_maxbps;
317 	u64 analog_formats;
318 	unsigned int spdif_rates;
319 	unsigned int spdif_maxbps;
320 	u64 spdif_formats;
321 };
322 
323 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
324 				  struct hda_multi_out *mout);
325 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
326 			       struct hda_multi_out *mout);
327 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
328 				struct hda_multi_out *mout);
329 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
330 				  struct hda_multi_out *mout,
331 				  unsigned int stream_tag,
332 				  unsigned int format,
333 				  struct snd_pcm_substream *substream);
334 int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
335 				  struct hda_multi_out *mout);
336 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
337 				  struct hda_multi_out *mout,
338 				  struct snd_pcm_substream *substream,
339 				  struct hda_pcm_stream *hinfo);
340 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
341 				     struct hda_multi_out *mout,
342 				     unsigned int stream_tag,
343 				     unsigned int format,
344 				     struct snd_pcm_substream *substream);
345 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
346 				     struct hda_multi_out *mout);
347 
348 /*
349  * generic codec parser
350  */
351 #ifdef CONFIG_SND_HDA_GENERIC
352 int snd_hda_parse_generic_codec(struct hda_codec *codec);
353 #else
354 static inline int snd_hda_parse_generic_codec(struct hda_codec *codec)
355 {
356 	return -ENODEV;
357 }
358 #endif
359 
360 /*
361  * generic proc interface
362  */
363 #ifdef CONFIG_PROC_FS
364 int snd_hda_codec_proc_new(struct hda_codec *codec);
365 #else
366 static inline int snd_hda_codec_proc_new(struct hda_codec *codec) { return 0; }
367 #endif
368 
369 #define SND_PRINT_BITS_ADVISED_BUFSIZE	16
370 void snd_print_pcm_bits(int pcm, char *buf, int buflen);
371 
372 /*
373  * Misc
374  */
375 int snd_hda_check_board_config(struct hda_codec *codec, int num_configs,
376 			       const char * const *modelnames,
377 			       const struct snd_pci_quirk *pci_list);
378 int snd_hda_check_board_codec_sid_config(struct hda_codec *codec,
379                                int num_configs, const char * const *models,
380                                const struct snd_pci_quirk *tbl);
381 int snd_hda_add_new_ctls(struct hda_codec *codec,
382 			 const struct snd_kcontrol_new *knew);
383 
384 /*
385  * unsolicited event handler
386  */
387 
388 #define HDA_UNSOL_QUEUE_SIZE	64
389 
390 struct hda_bus_unsolicited {
391 	/* ring buffer */
392 	u32 queue[HDA_UNSOL_QUEUE_SIZE * 2];
393 	unsigned int rp, wp;
394 
395 	/* workqueue */
396 	struct work_struct work;
397 	struct hda_bus *bus;
398 };
399 
400 /* helper macros to retrieve pin default-config values */
401 #define get_defcfg_connect(cfg) \
402 	((cfg & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT)
403 #define get_defcfg_association(cfg) \
404 	((cfg & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT)
405 #define get_defcfg_location(cfg) \
406 	((cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT)
407 #define get_defcfg_sequence(cfg) \
408 	(cfg & AC_DEFCFG_SEQUENCE)
409 #define get_defcfg_device(cfg) \
410 	((cfg & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT)
411 #define get_defcfg_misc(cfg) \
412 	((cfg & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT)
413 
414 /* amp values */
415 #define AMP_IN_MUTE(idx)	(0x7080 | ((idx)<<8))
416 #define AMP_IN_UNMUTE(idx)	(0x7000 | ((idx)<<8))
417 #define AMP_OUT_MUTE		0xb080
418 #define AMP_OUT_UNMUTE		0xb000
419 #define AMP_OUT_ZERO		0xb000
420 /* pinctl values */
421 #define PIN_IN			(AC_PINCTL_IN_EN)
422 #define PIN_VREFHIZ		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_HIZ)
423 #define PIN_VREF50		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_50)
424 #define PIN_VREFGRD		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_GRD)
425 #define PIN_VREF80		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_80)
426 #define PIN_VREF100		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_100)
427 #define PIN_OUT			(AC_PINCTL_OUT_EN)
428 #define PIN_HP			(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN)
429 #define PIN_HP_AMP		(AC_PINCTL_HP_EN)
430 
431 unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin);
432 int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
433 			 unsigned int val, bool cached);
434 
435 /**
436  * _snd_hda_set_pin_ctl - Set a pin-control value safely
437  * @codec: the codec instance
438  * @pin: the pin NID to set the control
439  * @val: the pin-control value (AC_PINCTL_* bits)
440  *
441  * This function sets the pin-control value to the given pin, but
442  * filters out the invalid pin-control bits when the pin has no such
443  * capabilities.  For example, when PIN_HP is passed but the pin has no
444  * HP-drive capability, the HP bit is omitted.
445  *
446  * The function doesn't check the input VREF capability bits, though.
447  * Use snd_hda_get_default_vref() to guess the right value.
448  * Also, this function is only for analog pins, not for HDMI pins.
449  */
450 static inline int
451 snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, unsigned int val)
452 {
453 	return _snd_hda_set_pin_ctl(codec, pin, val, false);
454 }
455 
456 /**
457  * snd_hda_set_pin_ctl_cache - Set a pin-control value safely
458  * @codec: the codec instance
459  * @pin: the pin NID to set the control
460  * @val: the pin-control value (AC_PINCTL_* bits)
461  *
462  * Just like snd_hda_set_pin_ctl() but write to cache as well.
463  */
464 static inline int
465 snd_hda_set_pin_ctl_cache(struct hda_codec *codec, hda_nid_t pin,
466 			  unsigned int val)
467 {
468 	return _snd_hda_set_pin_ctl(codec, pin, val, true);
469 }
470 
471 /*
472  * get widget capabilities
473  */
474 static inline u32 get_wcaps(struct hda_codec *codec, hda_nid_t nid)
475 {
476 	if (nid < codec->start_nid ||
477 	    nid >= codec->start_nid + codec->num_nodes)
478 		return 0;
479 	return codec->wcaps[nid - codec->start_nid];
480 }
481 
482 /* get the widget type from widget capability bits */
483 static inline int get_wcaps_type(unsigned int wcaps)
484 {
485 	if (!wcaps)
486 		return -1; /* invalid type */
487 	return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
488 }
489 
490 static inline unsigned int get_wcaps_channels(u32 wcaps)
491 {
492 	unsigned int chans;
493 
494 	chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13;
495 	chans = ((chans << 1) | 1) + 1;
496 
497 	return chans;
498 }
499 
500 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction);
501 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
502 			      unsigned int caps);
503 u32 snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid);
504 int snd_hda_override_pin_caps(struct hda_codec *codec, hda_nid_t nid,
505 			      unsigned int caps);
506 
507 /* flags for hda_nid_item */
508 #define HDA_NID_ITEM_AMP	(1<<0)
509 
510 struct hda_nid_item {
511 	struct snd_kcontrol *kctl;
512 	unsigned int index;
513 	hda_nid_t nid;
514 	unsigned short flags;
515 };
516 
517 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
518 		    struct snd_kcontrol *kctl);
519 int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
520 		    unsigned int index, hda_nid_t nid);
521 void snd_hda_ctls_clear(struct hda_codec *codec);
522 
523 /*
524  * hwdep interface
525  */
526 #ifdef CONFIG_SND_HDA_HWDEP
527 int snd_hda_create_hwdep(struct hda_codec *codec);
528 #else
529 static inline int snd_hda_create_hwdep(struct hda_codec *codec) { return 0; }
530 #endif
531 
532 #if defined(CONFIG_SND_HDA_POWER_SAVE) && defined(CONFIG_SND_HDA_HWDEP)
533 int snd_hda_hwdep_add_power_sysfs(struct hda_codec *codec);
534 #else
535 static inline int snd_hda_hwdep_add_power_sysfs(struct hda_codec *codec)
536 {
537 	return 0;
538 }
539 #endif
540 
541 #ifdef CONFIG_SND_HDA_RECONFIG
542 int snd_hda_hwdep_add_sysfs(struct hda_codec *codec);
543 #else
544 static inline int snd_hda_hwdep_add_sysfs(struct hda_codec *codec)
545 {
546 	return 0;
547 }
548 #endif
549 
550 #ifdef CONFIG_SND_HDA_RECONFIG
551 const char *snd_hda_get_hint(struct hda_codec *codec, const char *key);
552 int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key);
553 #else
554 static inline
555 const char *snd_hda_get_hint(struct hda_codec *codec, const char *key)
556 {
557 	return NULL;
558 }
559 
560 static inline
561 int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key)
562 {
563 	return -ENOENT;
564 }
565 #endif
566 
567 /*
568  * power-management
569  */
570 
571 void snd_hda_schedule_power_save(struct hda_codec *codec);
572 
573 struct hda_amp_list {
574 	hda_nid_t nid;
575 	unsigned char dir;
576 	unsigned char idx;
577 };
578 
579 struct hda_loopback_check {
580 	const struct hda_amp_list *amplist;
581 	int power_on;
582 };
583 
584 int snd_hda_check_amp_list_power(struct hda_codec *codec,
585 				 struct hda_loopback_check *check,
586 				 hda_nid_t nid);
587 
588 /*
589  * AMP control callbacks
590  */
591 /* retrieve parameters from private_value */
592 #define get_amp_nid_(pv)	((pv) & 0xffff)
593 #define get_amp_nid(kc)		get_amp_nid_((kc)->private_value)
594 #define get_amp_channels(kc)	(((kc)->private_value >> 16) & 0x3)
595 #define get_amp_direction_(pv)	(((pv) >> 18) & 0x1)
596 #define get_amp_direction(kc)	get_amp_direction_((kc)->private_value)
597 #define get_amp_index(kc)	(((kc)->private_value >> 19) & 0xf)
598 #define get_amp_offset(kc)	(((kc)->private_value >> 23) & 0x3f)
599 #define get_amp_min_mute(kc)	(((kc)->private_value >> 29) & 0x1)
600 
601 /*
602  * CEA Short Audio Descriptor data
603  */
604 struct cea_sad {
605 	int	channels;
606 	int	format;		/* (format == 0) indicates invalid SAD */
607 	int	rates;
608 	int	sample_bits;	/* for LPCM */
609 	int	max_bitrate;	/* for AC3...ATRAC */
610 	int	profile;	/* for WMAPRO */
611 };
612 
613 #define ELD_FIXED_BYTES	20
614 #define ELD_MAX_SIZE    256
615 #define ELD_MAX_MNL	16
616 #define ELD_MAX_SAD	16
617 
618 /*
619  * ELD: EDID Like Data
620  */
621 struct hdmi_eld {
622 	bool	monitor_present;
623 	bool	eld_valid;
624 	int	eld_size;
625 	int	baseline_len;
626 	int	eld_ver;
627 	int	cea_edid_ver;
628 	char	monitor_name[ELD_MAX_MNL + 1];
629 	int	manufacture_id;
630 	int	product_id;
631 	u64	port_id;
632 	int	support_hdcp;
633 	int	support_ai;
634 	int	conn_type;
635 	int	aud_synch_delay;
636 	int	spk_alloc;
637 	int	sad_count;
638 	struct cea_sad sad[ELD_MAX_SAD];
639 	/*
640 	 * all fields above eld_buffer will be cleared before updating ELD
641 	 */
642 	char    eld_buffer[ELD_MAX_SIZE];
643 #ifdef CONFIG_PROC_FS
644 	struct snd_info_entry *proc_entry;
645 #endif
646 };
647 
648 int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
649 int snd_hdmi_get_eld(struct hdmi_eld *, struct hda_codec *, hda_nid_t);
650 void snd_hdmi_show_eld(struct hdmi_eld *eld);
651 void snd_hdmi_eld_update_pcm_info(struct hdmi_eld *eld,
652 			      struct hda_pcm_stream *hinfo);
653 
654 #ifdef CONFIG_PROC_FS
655 int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld,
656 			 int index);
657 void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld);
658 #else
659 static inline int snd_hda_eld_proc_new(struct hda_codec *codec,
660 				       struct hdmi_eld *eld,
661 				       int index)
662 {
663 	return 0;
664 }
665 static inline void snd_hda_eld_proc_free(struct hda_codec *codec,
666 					 struct hdmi_eld *eld)
667 {
668 }
669 #endif
670 
671 #define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
672 void snd_print_channel_allocation(int spk_alloc, char *buf, int buflen);
673 
674 #endif /* __SOUND_HDA_LOCAL_H */
675