xref: /openbmc/linux/sound/pci/hda/hda_local.h (revision a61127c2)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Universal Interface for Intel High Definition Audio Codec
4  *
5  * Local helper functions
6  *
7  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
8  */
9 
10 #ifndef __SOUND_HDA_LOCAL_H
11 #define __SOUND_HDA_LOCAL_H
12 
13 /* We abuse kcontrol_new.subdev field to pass the NID corresponding to
14  * the given new control.  If id.subdev has a bit flag HDA_SUBDEV_NID_FLAG,
15  * snd_hda_ctl_add() takes the lower-bit subdev value as a valid NID.
16  *
17  * Note that the subdevice field is cleared again before the real registration
18  * in snd_hda_ctl_add(), so that this value won't appear in the outside.
19  */
20 #define HDA_SUBDEV_NID_FLAG	(1U << 31)
21 #define HDA_SUBDEV_AMP_FLAG	(1U << 30)
22 
23 /*
24  * for mixer controls
25  */
26 #define HDA_COMPOSE_AMP_VAL_OFS(nid,chs,idx,dir,ofs)		\
27 	((nid) | ((chs)<<16) | ((dir)<<18) | ((idx)<<19) | ((ofs)<<23))
28 #define HDA_AMP_VAL_MIN_MUTE (1<<29)
29 #define HDA_COMPOSE_AMP_VAL(nid,chs,idx,dir) \
30 	HDA_COMPOSE_AMP_VAL_OFS(nid, chs, idx, dir, 0)
31 /* mono volume with index (index=0,1,...) (channel=1,2) */
32 #define HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, channel, xindex, dir, flags) \
33 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx,  \
34 	  .subdevice = HDA_SUBDEV_AMP_FLAG, \
35 	  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
36 	  	    SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
37 	  	    SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \
38 	  .info = snd_hda_mixer_amp_volume_info, \
39 	  .get = snd_hda_mixer_amp_volume_get, \
40 	  .put = snd_hda_mixer_amp_volume_put, \
41 	  .tlv = { .c = snd_hda_mixer_amp_tlv },		\
42 	  .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, dir) | flags }
43 /* stereo volume with index */
44 #define HDA_CODEC_VOLUME_IDX(xname, xcidx, nid, xindex, direction) \
45 	HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, 3, xindex, direction, 0)
46 /* mono volume */
47 #define HDA_CODEC_VOLUME_MONO(xname, nid, channel, xindex, direction) \
48 	HDA_CODEC_VOLUME_MONO_IDX(xname, 0, nid, channel, xindex, direction, 0)
49 /* stereo volume */
50 #define HDA_CODEC_VOLUME(xname, nid, xindex, direction) \
51 	HDA_CODEC_VOLUME_MONO(xname, nid, 3, xindex, direction)
52 /* stereo volume with min=mute */
53 #define HDA_CODEC_VOLUME_MIN_MUTE(xname, nid, xindex, direction) \
54 	HDA_CODEC_VOLUME_MONO_IDX(xname, 0, nid, 3, xindex, direction, \
55 				  HDA_AMP_VAL_MIN_MUTE)
56 /* mono mute switch with index (index=0,1,...) (channel=1,2) */
57 #define HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
58 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
59 	  .subdevice = HDA_SUBDEV_AMP_FLAG, \
60 	  .info = snd_hda_mixer_amp_switch_info, \
61 	  .get = snd_hda_mixer_amp_switch_get, \
62 	  .put = snd_hda_mixer_amp_switch_put, \
63 	  .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
64 /* stereo mute switch with index */
65 #define HDA_CODEC_MUTE_IDX(xname, xcidx, nid, xindex, direction) \
66 	HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, 3, xindex, direction)
67 /* mono mute switch */
68 #define HDA_CODEC_MUTE_MONO(xname, nid, channel, xindex, direction) \
69 	HDA_CODEC_MUTE_MONO_IDX(xname, 0, nid, channel, xindex, direction)
70 /* stereo mute switch */
71 #define HDA_CODEC_MUTE(xname, nid, xindex, direction) \
72 	HDA_CODEC_MUTE_MONO(xname, nid, 3, xindex, direction)
73 #ifdef CONFIG_SND_HDA_INPUT_BEEP
74 /* special beep mono mute switch with index (index=0,1,...) (channel=1,2) */
75 #define HDA_CODEC_MUTE_BEEP_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
76 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
77 	  .subdevice = HDA_SUBDEV_AMP_FLAG, \
78 	  .info = snd_hda_mixer_amp_switch_info, \
79 	  .get = snd_hda_mixer_amp_switch_get_beep, \
80 	  .put = snd_hda_mixer_amp_switch_put_beep, \
81 	  .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
82 #else
83 /* no digital beep - just the standard one */
84 #define HDA_CODEC_MUTE_BEEP_MONO_IDX(xname, xcidx, nid, ch, xidx, dir) \
85 	HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, ch, xidx, dir)
86 #endif /* CONFIG_SND_HDA_INPUT_BEEP */
87 /* special beep mono mute switch */
88 #define HDA_CODEC_MUTE_BEEP_MONO(xname, nid, channel, xindex, direction) \
89 	HDA_CODEC_MUTE_BEEP_MONO_IDX(xname, 0, nid, channel, xindex, direction)
90 /* special beep stereo mute switch */
91 #define HDA_CODEC_MUTE_BEEP(xname, nid, xindex, direction) \
92 	HDA_CODEC_MUTE_BEEP_MONO(xname, nid, 3, xindex, direction)
93 
94 extern const char *snd_hda_pcm_type_name[];
95 
96 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
97 				  struct snd_ctl_elem_info *uinfo);
98 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
99 				 struct snd_ctl_elem_value *ucontrol);
100 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
101 				 struct snd_ctl_elem_value *ucontrol);
102 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
103 			  unsigned int size, unsigned int __user *tlv);
104 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
105 				  struct snd_ctl_elem_info *uinfo);
106 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
107 				 struct snd_ctl_elem_value *ucontrol);
108 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
109 				 struct snd_ctl_elem_value *ucontrol);
110 #ifdef CONFIG_SND_HDA_INPUT_BEEP
111 int snd_hda_mixer_amp_switch_get_beep(struct snd_kcontrol *kcontrol,
112 				      struct snd_ctl_elem_value *ucontrol);
113 int snd_hda_mixer_amp_switch_put_beep(struct snd_kcontrol *kcontrol,
114 				      struct snd_ctl_elem_value *ucontrol);
115 #endif
116 /* lowlevel accessor with caching; use carefully */
117 #define snd_hda_codec_amp_read(codec, nid, ch, dir, idx) \
118 	snd_hdac_regmap_get_amp(&(codec)->core, nid, ch, dir, idx)
119 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid,
120 			     int ch, int dir, int idx, int mask, int val);
121 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
122 			     int dir, int idx, int mask, int val);
123 int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
124 			   int direction, int idx, int mask, int val);
125 int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
126 				  int dir, int idx, int mask, int val);
127 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
128 			     unsigned int *tlv);
129 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
130 					    const char *name);
131 int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
132 			  unsigned int *tlv, const char * const *slaves,
133 			  const char *suffix, bool init_slave_vol,
134 			  struct snd_kcontrol **ctl_ret);
135 #define snd_hda_add_vmaster(codec, name, tlv, slaves, suffix) \
136 	__snd_hda_add_vmaster(codec, name, tlv, slaves, suffix, true, NULL)
137 int snd_hda_codec_reset(struct hda_codec *codec);
138 void snd_hda_codec_register(struct hda_codec *codec);
139 void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec);
140 
141 enum {
142 	HDA_VMUTE_OFF,
143 	HDA_VMUTE_ON,
144 	HDA_VMUTE_FOLLOW_MASTER,
145 };
146 
147 struct hda_vmaster_mute_hook {
148 	/* below two fields must be filled by the caller of
149 	 * snd_hda_add_vmaster_hook() beforehand
150 	 */
151 	struct snd_kcontrol *sw_kctl;
152 	void (*hook)(void *, int);
153 	/* below are initialized automatically */
154 	unsigned int mute_mode; /* HDA_VMUTE_XXX */
155 	struct hda_codec *codec;
156 };
157 
158 int snd_hda_add_vmaster_hook(struct hda_codec *codec,
159 			     struct hda_vmaster_mute_hook *hook,
160 			     bool expose_enum_ctl);
161 void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook);
162 
163 /* amp value bits */
164 #define HDA_AMP_MUTE	0x80
165 #define HDA_AMP_UNMUTE	0x00
166 #define HDA_AMP_VOLMASK	0x7f
167 
168 /*
169  * SPDIF I/O
170  */
171 int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
172 				hda_nid_t associated_nid,
173 				hda_nid_t cvt_nid, int type);
174 #define snd_hda_create_spdif_out_ctls(codec, anid, cnid) \
175 	snd_hda_create_dig_out_ctls(codec, anid, cnid, HDA_PCM_TYPE_SPDIF)
176 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid);
177 
178 /*
179  * input MUX helper
180  */
181 #define HDA_MAX_NUM_INPUTS	16
182 struct hda_input_mux_item {
183 	char label[32];
184 	unsigned int index;
185 };
186 struct hda_input_mux {
187 	unsigned int num_items;
188 	struct hda_input_mux_item items[HDA_MAX_NUM_INPUTS];
189 };
190 
191 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
192 			   struct snd_ctl_elem_info *uinfo);
193 int snd_hda_input_mux_put(struct hda_codec *codec,
194 			  const struct hda_input_mux *imux,
195 			  struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
196 			  unsigned int *cur_val);
197 int snd_hda_add_imux_item(struct hda_codec *codec,
198 			  struct hda_input_mux *imux, const char *label,
199 			  int index, int *type_index_ret);
200 
201 /*
202  * Multi-channel / digital-out PCM helper
203  */
204 
205 enum { HDA_FRONT, HDA_REAR, HDA_CLFE, HDA_SIDE }; /* index for dac_nidx */
206 enum { HDA_DIG_NONE, HDA_DIG_EXCLUSIVE, HDA_DIG_ANALOG_DUP }; /* dig_out_used */
207 
208 #define HDA_MAX_OUTS	5
209 
210 struct hda_multi_out {
211 	int num_dacs;		/* # of DACs, must be more than 1 */
212 	const hda_nid_t *dac_nids;	/* DAC list */
213 	hda_nid_t hp_nid;	/* optional DAC for HP, 0 when not exists */
214 	hda_nid_t hp_out_nid[HDA_MAX_OUTS];	/* DACs for multiple HPs */
215 	hda_nid_t extra_out_nid[HDA_MAX_OUTS];	/* other (e.g. speaker) DACs */
216 	hda_nid_t dig_out_nid;	/* digital out audio widget */
217 	const hda_nid_t *slave_dig_outs;
218 	int max_channels;	/* currently supported analog channels */
219 	int dig_out_used;	/* current usage of digital out (HDA_DIG_XXX) */
220 	int no_share_stream;	/* don't share a stream with multiple pins */
221 	int share_spdif;	/* share SPDIF pin */
222 	/* PCM information for both analog and SPDIF DACs */
223 	unsigned int analog_rates;
224 	unsigned int analog_maxbps;
225 	u64 analog_formats;
226 	unsigned int spdif_rates;
227 	unsigned int spdif_maxbps;
228 	u64 spdif_formats;
229 };
230 
231 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
232 				  struct hda_multi_out *mout);
233 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
234 			       struct hda_multi_out *mout);
235 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
236 				struct hda_multi_out *mout);
237 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
238 				  struct hda_multi_out *mout,
239 				  unsigned int stream_tag,
240 				  unsigned int format,
241 				  struct snd_pcm_substream *substream);
242 int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
243 				  struct hda_multi_out *mout);
244 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
245 				  struct hda_multi_out *mout,
246 				  struct snd_pcm_substream *substream,
247 				  struct hda_pcm_stream *hinfo);
248 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
249 				     struct hda_multi_out *mout,
250 				     unsigned int stream_tag,
251 				     unsigned int format,
252 				     struct snd_pcm_substream *substream);
253 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
254 				     struct hda_multi_out *mout);
255 
256 /*
257  * generic proc interface
258  */
259 #ifdef CONFIG_SND_PROC_FS
260 int snd_hda_codec_proc_new(struct hda_codec *codec);
261 #else
262 static inline int snd_hda_codec_proc_new(struct hda_codec *codec) { return 0; }
263 #endif
264 
265 #define SND_PRINT_BITS_ADVISED_BUFSIZE	16
266 void snd_print_pcm_bits(int pcm, char *buf, int buflen);
267 
268 /*
269  * Misc
270  */
271 int snd_hda_add_new_ctls(struct hda_codec *codec,
272 			 const struct snd_kcontrol_new *knew);
273 
274 /*
275  * Fix-up pin default configurations and add default verbs
276  */
277 
278 struct hda_pintbl {
279 	hda_nid_t nid;
280 	u32 val;
281 };
282 
283 struct hda_model_fixup {
284 	const int id;
285 	const char *name;
286 };
287 
288 struct hda_fixup {
289 	int type;
290 	bool chained:1;		/* call the chained fixup(s) after this */
291 	bool chained_before:1;	/* call the chained fixup(s) before this */
292 	int chain_id;
293 	union {
294 		const struct hda_pintbl *pins;
295 		const struct hda_verb *verbs;
296 		void (*func)(struct hda_codec *codec,
297 			     const struct hda_fixup *fix,
298 			     int action);
299 	} v;
300 };
301 
302 struct snd_hda_pin_quirk {
303 	unsigned int codec;             /* Codec vendor/device ID */
304 	unsigned short subvendor;	/* PCI subvendor ID */
305 	const struct hda_pintbl *pins;  /* list of matching pins */
306 #ifdef CONFIG_SND_DEBUG_VERBOSE
307 	const char *name;
308 #endif
309 	int value;			/* quirk value */
310 };
311 
312 #ifdef CONFIG_SND_DEBUG_VERBOSE
313 
314 #define SND_HDA_PIN_QUIRK(_codec, _subvendor, _name, _value, _pins...) \
315 	{ .codec = _codec,\
316 	  .subvendor = _subvendor,\
317 	  .name = _name,\
318 	  .value = _value,\
319 	  .pins = (const struct hda_pintbl[]) { _pins, {0, 0}} \
320 	}
321 #else
322 
323 #define SND_HDA_PIN_QUIRK(_codec, _subvendor, _name, _value, _pins...) \
324 	{ .codec = _codec,\
325 	  .subvendor = _subvendor,\
326 	  .value = _value,\
327 	  .pins = (const struct hda_pintbl[]) { _pins, {0, 0}} \
328 	}
329 
330 #endif
331 
332 #define HDA_FIXUP_ID_NOT_SET -1
333 #define HDA_FIXUP_ID_NO_FIXUP -2
334 
335 /* fixup types */
336 enum {
337 	HDA_FIXUP_INVALID,
338 	HDA_FIXUP_PINS,
339 	HDA_FIXUP_VERBS,
340 	HDA_FIXUP_FUNC,
341 	HDA_FIXUP_PINCTLS,
342 };
343 
344 /* fixup action definitions */
345 enum {
346 	HDA_FIXUP_ACT_PRE_PROBE,
347 	HDA_FIXUP_ACT_PROBE,
348 	HDA_FIXUP_ACT_INIT,
349 	HDA_FIXUP_ACT_BUILD,
350 	HDA_FIXUP_ACT_FREE,
351 };
352 
353 int snd_hda_add_verbs(struct hda_codec *codec, const struct hda_verb *list);
354 void snd_hda_apply_verbs(struct hda_codec *codec);
355 void snd_hda_apply_pincfgs(struct hda_codec *codec,
356 			   const struct hda_pintbl *cfg);
357 void snd_hda_apply_fixup(struct hda_codec *codec, int action);
358 void snd_hda_pick_fixup(struct hda_codec *codec,
359 			const struct hda_model_fixup *models,
360 			const struct snd_pci_quirk *quirk,
361 			const struct hda_fixup *fixlist);
362 void snd_hda_pick_pin_fixup(struct hda_codec *codec,
363 			    const struct snd_hda_pin_quirk *pin_quirk,
364 			    const struct hda_fixup *fixlist);
365 
366 /* helper macros to retrieve pin default-config values */
367 #define get_defcfg_connect(cfg) \
368 	((cfg & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT)
369 #define get_defcfg_association(cfg) \
370 	((cfg & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT)
371 #define get_defcfg_location(cfg) \
372 	((cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT)
373 #define get_defcfg_sequence(cfg) \
374 	(cfg & AC_DEFCFG_SEQUENCE)
375 #define get_defcfg_device(cfg) \
376 	((cfg & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT)
377 #define get_defcfg_misc(cfg) \
378 	((cfg & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT)
379 
380 /* amp values */
381 #define AMP_IN_MUTE(idx)	(0x7080 | ((idx)<<8))
382 #define AMP_IN_UNMUTE(idx)	(0x7000 | ((idx)<<8))
383 #define AMP_OUT_MUTE		0xb080
384 #define AMP_OUT_UNMUTE		0xb000
385 #define AMP_OUT_ZERO		0xb000
386 /* pinctl values */
387 #define PIN_IN			(AC_PINCTL_IN_EN)
388 #define PIN_VREFHIZ		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_HIZ)
389 #define PIN_VREF50		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_50)
390 #define PIN_VREFGRD		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_GRD)
391 #define PIN_VREF80		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_80)
392 #define PIN_VREF100		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_100)
393 #define PIN_OUT			(AC_PINCTL_OUT_EN)
394 #define PIN_HP			(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN)
395 #define PIN_HP_AMP		(AC_PINCTL_HP_EN)
396 
397 unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin);
398 unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
399 				     hda_nid_t pin, unsigned int val);
400 int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
401 			 unsigned int val, bool cached);
402 
403 /**
404  * _snd_hda_set_pin_ctl - Set a pin-control value safely
405  * @codec: the codec instance
406  * @pin: the pin NID to set the control
407  * @val: the pin-control value (AC_PINCTL_* bits)
408  *
409  * This function sets the pin-control value to the given pin, but
410  * filters out the invalid pin-control bits when the pin has no such
411  * capabilities.  For example, when PIN_HP is passed but the pin has no
412  * HP-drive capability, the HP bit is omitted.
413  *
414  * The function doesn't check the input VREF capability bits, though.
415  * Use snd_hda_get_default_vref() to guess the right value.
416  * Also, this function is only for analog pins, not for HDMI pins.
417  */
418 static inline int
419 snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, unsigned int val)
420 {
421 	return _snd_hda_set_pin_ctl(codec, pin, val, false);
422 }
423 
424 /**
425  * snd_hda_set_pin_ctl_cache - Set a pin-control value safely
426  * @codec: the codec instance
427  * @pin: the pin NID to set the control
428  * @val: the pin-control value (AC_PINCTL_* bits)
429  *
430  * Just like snd_hda_set_pin_ctl() but write to cache as well.
431  */
432 static inline int
433 snd_hda_set_pin_ctl_cache(struct hda_codec *codec, hda_nid_t pin,
434 			  unsigned int val)
435 {
436 	return _snd_hda_set_pin_ctl(codec, pin, val, true);
437 }
438 
439 int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid);
440 int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid,
441 				 unsigned int val);
442 
443 #define for_each_hda_codec_node(nid, codec) \
444 	for ((nid) = (codec)->core.start_nid; (nid) < (codec)->core.end_nid; (nid)++)
445 
446 /*
447  * get widget capabilities
448  */
449 static inline u32 get_wcaps(struct hda_codec *codec, hda_nid_t nid)
450 {
451 	if (nid < codec->core.start_nid ||
452 	    nid >= codec->core.start_nid + codec->core.num_nodes)
453 		return 0;
454 	return codec->wcaps[nid - codec->core.start_nid];
455 }
456 
457 /* get the widget type from widget capability bits */
458 static inline int get_wcaps_type(unsigned int wcaps)
459 {
460 	if (!wcaps)
461 		return -1; /* invalid type */
462 	return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
463 }
464 
465 static inline unsigned int get_wcaps_channels(u32 wcaps)
466 {
467 	unsigned int chans;
468 
469 	chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13;
470 	chans = ((chans << 1) | 1) + 1;
471 
472 	return chans;
473 }
474 
475 static inline void snd_hda_override_wcaps(struct hda_codec *codec,
476 					  hda_nid_t nid, u32 val)
477 {
478 	if (nid >= codec->core.start_nid &&
479 	    nid < codec->core.start_nid + codec->core.num_nodes)
480 		codec->wcaps[nid - codec->core.start_nid] = val;
481 }
482 
483 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction);
484 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
485 			      unsigned int caps);
486 /**
487  * snd_hda_query_pin_caps - Query PIN capabilities
488  * @codec: the HD-auio codec
489  * @nid: the NID to query
490  *
491  * Query PIN capabilities for the given widget.
492  * Returns the obtained capability bits.
493  *
494  * When cap bits have been already read, this doesn't read again but
495  * returns the cached value.
496  */
497 static inline u32
498 snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid)
499 {
500 	return snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
501 
502 }
503 
504 /**
505  * snd_hda_override_pin_caps - Override the pin capabilities
506  * @codec: the CODEC
507  * @nid: the NID to override
508  * @caps: the capability bits to set
509  *
510  * Override the cached PIN capabilitiy bits value by the given one.
511  *
512  * Returns zero if successful or a negative error code.
513  */
514 static inline int
515 snd_hda_override_pin_caps(struct hda_codec *codec, hda_nid_t nid,
516 			  unsigned int caps)
517 {
518 	return snd_hdac_override_parm(&codec->core, nid, AC_PAR_PIN_CAP, caps);
519 }
520 
521 bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
522 			   int dir, unsigned int bits);
523 
524 #define nid_has_mute(codec, nid, dir) \
525 	snd_hda_check_amp_caps(codec, nid, dir, (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE))
526 #define nid_has_volume(codec, nid, dir) \
527 	snd_hda_check_amp_caps(codec, nid, dir, AC_AMPCAP_NUM_STEPS)
528 
529 
530 /* flags for hda_nid_item */
531 #define HDA_NID_ITEM_AMP	(1<<0)
532 
533 struct hda_nid_item {
534 	struct snd_kcontrol *kctl;
535 	unsigned int index;
536 	hda_nid_t nid;
537 	unsigned short flags;
538 };
539 
540 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
541 		    struct snd_kcontrol *kctl);
542 int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
543 		    unsigned int index, hda_nid_t nid);
544 void snd_hda_ctls_clear(struct hda_codec *codec);
545 
546 /*
547  * hwdep interface
548  */
549 #ifdef CONFIG_SND_HDA_HWDEP
550 int snd_hda_create_hwdep(struct hda_codec *codec);
551 #else
552 static inline int snd_hda_create_hwdep(struct hda_codec *codec) { return 0; }
553 #endif
554 
555 void snd_hda_sysfs_init(struct hda_codec *codec);
556 void snd_hda_sysfs_clear(struct hda_codec *codec);
557 
558 extern const struct attribute_group *snd_hda_dev_attr_groups[];
559 
560 #ifdef CONFIG_SND_HDA_RECONFIG
561 const char *snd_hda_get_hint(struct hda_codec *codec, const char *key);
562 int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key);
563 int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp);
564 #else
565 static inline
566 const char *snd_hda_get_hint(struct hda_codec *codec, const char *key)
567 {
568 	return NULL;
569 }
570 
571 static inline
572 int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key)
573 {
574 	return -ENOENT;
575 }
576 
577 static inline
578 int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp)
579 {
580 	return -ENOENT;
581 }
582 #endif
583 
584 /*
585  * power-management
586  */
587 
588 void snd_hda_schedule_power_save(struct hda_codec *codec);
589 
590 struct hda_amp_list {
591 	hda_nid_t nid;
592 	unsigned char dir;
593 	unsigned char idx;
594 };
595 
596 struct hda_loopback_check {
597 	const struct hda_amp_list *amplist;
598 	int power_on;
599 };
600 
601 int snd_hda_check_amp_list_power(struct hda_codec *codec,
602 				 struct hda_loopback_check *check,
603 				 hda_nid_t nid);
604 
605 /* check whether the actual power state matches with the target state */
606 static inline bool
607 snd_hda_check_power_state(struct hda_codec *codec, hda_nid_t nid,
608 			  unsigned int target_state)
609 {
610 	return snd_hdac_check_power_state(&codec->core, nid, target_state);
611 }
612 
613 static inline unsigned int snd_hda_sync_power_state(struct hda_codec *codec,
614 						    hda_nid_t nid,
615 						    unsigned int target_state)
616 {
617 	return snd_hdac_sync_power_state(&codec->core, nid, target_state);
618 }
619 unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
620 					     hda_nid_t nid,
621 					     unsigned int power_state);
622 
623 /*
624  * AMP control callbacks
625  */
626 /* retrieve parameters from private_value */
627 #define get_amp_nid_(pv)	((pv) & 0xffff)
628 #define get_amp_nid(kc)		get_amp_nid_((kc)->private_value)
629 #define get_amp_channels(kc)	(((kc)->private_value >> 16) & 0x3)
630 #define get_amp_direction_(pv)	(((pv) >> 18) & 0x1)
631 #define get_amp_direction(kc)	get_amp_direction_((kc)->private_value)
632 #define get_amp_index_(pv)	(((pv) >> 19) & 0xf)
633 #define get_amp_index(kc)	get_amp_index_((kc)->private_value)
634 #define get_amp_offset(kc)	(((kc)->private_value >> 23) & 0x3f)
635 #define get_amp_min_mute(kc)	(((kc)->private_value >> 29) & 0x1)
636 
637 /*
638  * enum control helper
639  */
640 int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
641 			     struct snd_ctl_elem_info *uinfo,
642 			     int num_entries, const char * const *texts);
643 #define snd_hda_enum_bool_helper_info(kcontrol, uinfo) \
644 	snd_hda_enum_helper_info(kcontrol, uinfo, 0, NULL)
645 
646 /*
647  * CEA Short Audio Descriptor data
648  */
649 struct cea_sad {
650 	int	channels;
651 	int	format;		/* (format == 0) indicates invalid SAD */
652 	int	rates;
653 	int	sample_bits;	/* for LPCM */
654 	int	max_bitrate;	/* for AC3...ATRAC */
655 	int	profile;	/* for WMAPRO */
656 };
657 
658 #define ELD_FIXED_BYTES	20
659 #define ELD_MAX_SIZE    256
660 #define ELD_MAX_MNL	16
661 #define ELD_MAX_SAD	16
662 
663 /*
664  * ELD: EDID Like Data
665  */
666 struct parsed_hdmi_eld {
667 	/*
668 	 * all fields will be cleared before updating ELD
669 	 */
670 	int	baseline_len;
671 	int	eld_ver;
672 	int	cea_edid_ver;
673 	char	monitor_name[ELD_MAX_MNL + 1];
674 	int	manufacture_id;
675 	int	product_id;
676 	u64	port_id;
677 	int	support_hdcp;
678 	int	support_ai;
679 	int	conn_type;
680 	int	aud_synch_delay;
681 	int	spk_alloc;
682 	int	sad_count;
683 	struct cea_sad sad[ELD_MAX_SAD];
684 };
685 
686 struct hdmi_eld {
687 	bool	monitor_present;
688 	bool	eld_valid;
689 	int	eld_size;
690 	char    eld_buffer[ELD_MAX_SIZE];
691 	struct parsed_hdmi_eld info;
692 };
693 
694 int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
695 int snd_hdmi_get_eld(struct hda_codec *codec, hda_nid_t nid,
696 		     unsigned char *buf, int *eld_size);
697 int snd_hdmi_parse_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e,
698 		       const unsigned char *buf, int size);
699 void snd_hdmi_show_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e);
700 void snd_hdmi_eld_update_pcm_info(struct parsed_hdmi_eld *e,
701 			      struct hda_pcm_stream *hinfo);
702 
703 int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid,
704 			 unsigned char *buf, int *eld_size,
705 			 bool rev3_or_later);
706 
707 #ifdef CONFIG_SND_PROC_FS
708 void snd_hdmi_print_eld_info(struct hdmi_eld *eld,
709 			     struct snd_info_buffer *buffer);
710 void snd_hdmi_write_eld_info(struct hdmi_eld *eld,
711 			     struct snd_info_buffer *buffer);
712 #endif
713 
714 #define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
715 void snd_print_channel_allocation(int spk_alloc, char *buf, int buflen);
716 
717 /*
718  */
719 #define codec_err(codec, fmt, args...) \
720 	dev_err(hda_codec_dev(codec), fmt, ##args)
721 #define codec_warn(codec, fmt, args...) \
722 	dev_warn(hda_codec_dev(codec), fmt, ##args)
723 #define codec_info(codec, fmt, args...) \
724 	dev_info(hda_codec_dev(codec), fmt, ##args)
725 #define codec_dbg(codec, fmt, args...) \
726 	dev_dbg(hda_codec_dev(codec), fmt, ##args)
727 
728 #endif /* __SOUND_HDA_LOCAL_H */
729