xref: /openbmc/linux/sound/pci/hda/hda_local.h (revision 9d4fa1a1)
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 #define snd_hda_regmap_sync(codec)	snd_hdac_regmap_sync(&(codec)->core)
142 
143 enum {
144 	HDA_VMUTE_OFF,
145 	HDA_VMUTE_ON,
146 	HDA_VMUTE_FOLLOW_MASTER,
147 };
148 
149 struct hda_vmaster_mute_hook {
150 	/* below two fields must be filled by the caller of
151 	 * snd_hda_add_vmaster_hook() beforehand
152 	 */
153 	struct snd_kcontrol *sw_kctl;
154 	void (*hook)(void *, int);
155 	/* below are initialized automatically */
156 	unsigned int mute_mode; /* HDA_VMUTE_XXX */
157 	struct hda_codec *codec;
158 };
159 
160 int snd_hda_add_vmaster_hook(struct hda_codec *codec,
161 			     struct hda_vmaster_mute_hook *hook,
162 			     bool expose_enum_ctl);
163 void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook);
164 
165 /* amp value bits */
166 #define HDA_AMP_MUTE	0x80
167 #define HDA_AMP_UNMUTE	0x00
168 #define HDA_AMP_VOLMASK	0x7f
169 
170 /*
171  * SPDIF I/O
172  */
173 int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
174 				hda_nid_t associated_nid,
175 				hda_nid_t cvt_nid, int type);
176 #define snd_hda_create_spdif_out_ctls(codec, anid, cnid) \
177 	snd_hda_create_dig_out_ctls(codec, anid, cnid, HDA_PCM_TYPE_SPDIF)
178 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid);
179 
180 /*
181  * input MUX helper
182  */
183 #define HDA_MAX_NUM_INPUTS	16
184 struct hda_input_mux_item {
185 	char label[32];
186 	unsigned int index;
187 };
188 struct hda_input_mux {
189 	unsigned int num_items;
190 	struct hda_input_mux_item items[HDA_MAX_NUM_INPUTS];
191 };
192 
193 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
194 			   struct snd_ctl_elem_info *uinfo);
195 int snd_hda_input_mux_put(struct hda_codec *codec,
196 			  const struct hda_input_mux *imux,
197 			  struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
198 			  unsigned int *cur_val);
199 int snd_hda_add_imux_item(struct hda_codec *codec,
200 			  struct hda_input_mux *imux, const char *label,
201 			  int index, int *type_index_ret);
202 
203 /*
204  * Multi-channel / digital-out PCM helper
205  */
206 
207 enum { HDA_FRONT, HDA_REAR, HDA_CLFE, HDA_SIDE }; /* index for dac_nidx */
208 enum { HDA_DIG_NONE, HDA_DIG_EXCLUSIVE, HDA_DIG_ANALOG_DUP }; /* dig_out_used */
209 
210 #define HDA_MAX_OUTS	5
211 
212 struct hda_multi_out {
213 	int num_dacs;		/* # of DACs, must be more than 1 */
214 	const hda_nid_t *dac_nids;	/* DAC list */
215 	hda_nid_t hp_nid;	/* optional DAC for HP, 0 when not exists */
216 	hda_nid_t hp_out_nid[HDA_MAX_OUTS];	/* DACs for multiple HPs */
217 	hda_nid_t extra_out_nid[HDA_MAX_OUTS];	/* other (e.g. speaker) DACs */
218 	hda_nid_t dig_out_nid;	/* digital out audio widget */
219 	const hda_nid_t *slave_dig_outs;
220 	int max_channels;	/* currently supported analog channels */
221 	int dig_out_used;	/* current usage of digital out (HDA_DIG_XXX) */
222 	int no_share_stream;	/* don't share a stream with multiple pins */
223 	int share_spdif;	/* share SPDIF pin */
224 	/* PCM information for both analog and SPDIF DACs */
225 	unsigned int analog_rates;
226 	unsigned int analog_maxbps;
227 	u64 analog_formats;
228 	unsigned int spdif_rates;
229 	unsigned int spdif_maxbps;
230 	u64 spdif_formats;
231 };
232 
233 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
234 				  struct hda_multi_out *mout);
235 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
236 			       struct hda_multi_out *mout);
237 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
238 				struct hda_multi_out *mout);
239 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
240 				  struct hda_multi_out *mout,
241 				  unsigned int stream_tag,
242 				  unsigned int format,
243 				  struct snd_pcm_substream *substream);
244 int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
245 				  struct hda_multi_out *mout);
246 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
247 				  struct hda_multi_out *mout,
248 				  struct snd_pcm_substream *substream,
249 				  struct hda_pcm_stream *hinfo);
250 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
251 				     struct hda_multi_out *mout,
252 				     unsigned int stream_tag,
253 				     unsigned int format,
254 				     struct snd_pcm_substream *substream);
255 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
256 				     struct hda_multi_out *mout);
257 
258 /*
259  * generic proc interface
260  */
261 #ifdef CONFIG_SND_PROC_FS
262 int snd_hda_codec_proc_new(struct hda_codec *codec);
263 #else
264 static inline int snd_hda_codec_proc_new(struct hda_codec *codec) { return 0; }
265 #endif
266 
267 #define SND_PRINT_BITS_ADVISED_BUFSIZE	16
268 void snd_print_pcm_bits(int pcm, char *buf, int buflen);
269 
270 /*
271  * Misc
272  */
273 int snd_hda_add_new_ctls(struct hda_codec *codec,
274 			 const struct snd_kcontrol_new *knew);
275 
276 /*
277  * Fix-up pin default configurations and add default verbs
278  */
279 
280 struct hda_pintbl {
281 	hda_nid_t nid;
282 	u32 val;
283 };
284 
285 struct hda_model_fixup {
286 	const int id;
287 	const char *name;
288 };
289 
290 struct hda_fixup {
291 	int type;
292 	bool chained:1;		/* call the chained fixup(s) after this */
293 	bool chained_before:1;	/* call the chained fixup(s) before this */
294 	int chain_id;
295 	union {
296 		const struct hda_pintbl *pins;
297 		const struct hda_verb *verbs;
298 		void (*func)(struct hda_codec *codec,
299 			     const struct hda_fixup *fix,
300 			     int action);
301 	} v;
302 };
303 
304 struct snd_hda_pin_quirk {
305 	unsigned int codec;             /* Codec vendor/device ID */
306 	unsigned short subvendor;	/* PCI subvendor ID */
307 	const struct hda_pintbl *pins;  /* list of matching pins */
308 #ifdef CONFIG_SND_DEBUG_VERBOSE
309 	const char *name;
310 #endif
311 	int value;			/* quirk value */
312 };
313 
314 #ifdef CONFIG_SND_DEBUG_VERBOSE
315 
316 #define SND_HDA_PIN_QUIRK(_codec, _subvendor, _name, _value, _pins...) \
317 	{ .codec = _codec,\
318 	  .subvendor = _subvendor,\
319 	  .name = _name,\
320 	  .value = _value,\
321 	  .pins = (const struct hda_pintbl[]) { _pins, {0, 0}} \
322 	}
323 #else
324 
325 #define SND_HDA_PIN_QUIRK(_codec, _subvendor, _name, _value, _pins...) \
326 	{ .codec = _codec,\
327 	  .subvendor = _subvendor,\
328 	  .value = _value,\
329 	  .pins = (const struct hda_pintbl[]) { _pins, {0, 0}} \
330 	}
331 
332 #endif
333 
334 #define HDA_FIXUP_ID_NOT_SET -1
335 #define HDA_FIXUP_ID_NO_FIXUP -2
336 
337 /* fixup types */
338 enum {
339 	HDA_FIXUP_INVALID,
340 	HDA_FIXUP_PINS,
341 	HDA_FIXUP_VERBS,
342 	HDA_FIXUP_FUNC,
343 	HDA_FIXUP_PINCTLS,
344 };
345 
346 /* fixup action definitions */
347 enum {
348 	HDA_FIXUP_ACT_PRE_PROBE,
349 	HDA_FIXUP_ACT_PROBE,
350 	HDA_FIXUP_ACT_INIT,
351 	HDA_FIXUP_ACT_BUILD,
352 	HDA_FIXUP_ACT_FREE,
353 };
354 
355 int snd_hda_add_verbs(struct hda_codec *codec, const struct hda_verb *list);
356 void snd_hda_apply_verbs(struct hda_codec *codec);
357 void snd_hda_apply_pincfgs(struct hda_codec *codec,
358 			   const struct hda_pintbl *cfg);
359 void snd_hda_apply_fixup(struct hda_codec *codec, int action);
360 void snd_hda_pick_fixup(struct hda_codec *codec,
361 			const struct hda_model_fixup *models,
362 			const struct snd_pci_quirk *quirk,
363 			const struct hda_fixup *fixlist);
364 void snd_hda_pick_pin_fixup(struct hda_codec *codec,
365 			    const struct snd_hda_pin_quirk *pin_quirk,
366 			    const struct hda_fixup *fixlist,
367 			    bool match_all_pins);
368 
369 /* helper macros to retrieve pin default-config values */
370 #define get_defcfg_connect(cfg) \
371 	((cfg & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT)
372 #define get_defcfg_association(cfg) \
373 	((cfg & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT)
374 #define get_defcfg_location(cfg) \
375 	((cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT)
376 #define get_defcfg_sequence(cfg) \
377 	(cfg & AC_DEFCFG_SEQUENCE)
378 #define get_defcfg_device(cfg) \
379 	((cfg & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT)
380 #define get_defcfg_misc(cfg) \
381 	((cfg & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT)
382 
383 /* amp values */
384 #define AMP_IN_MUTE(idx)	(0x7080 | ((idx)<<8))
385 #define AMP_IN_UNMUTE(idx)	(0x7000 | ((idx)<<8))
386 #define AMP_OUT_MUTE		0xb080
387 #define AMP_OUT_UNMUTE		0xb000
388 #define AMP_OUT_ZERO		0xb000
389 /* pinctl values */
390 #define PIN_IN			(AC_PINCTL_IN_EN)
391 #define PIN_VREFHIZ		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_HIZ)
392 #define PIN_VREF50		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_50)
393 #define PIN_VREFGRD		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_GRD)
394 #define PIN_VREF80		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_80)
395 #define PIN_VREF100		(AC_PINCTL_IN_EN | AC_PINCTL_VREF_100)
396 #define PIN_OUT			(AC_PINCTL_OUT_EN)
397 #define PIN_HP			(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN)
398 #define PIN_HP_AMP		(AC_PINCTL_HP_EN)
399 
400 unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin);
401 unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
402 				     hda_nid_t pin, unsigned int val);
403 int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
404 			 unsigned int val, bool cached);
405 
406 /**
407  * _snd_hda_set_pin_ctl - Set a pin-control value safely
408  * @codec: the codec instance
409  * @pin: the pin NID to set the control
410  * @val: the pin-control value (AC_PINCTL_* bits)
411  *
412  * This function sets the pin-control value to the given pin, but
413  * filters out the invalid pin-control bits when the pin has no such
414  * capabilities.  For example, when PIN_HP is passed but the pin has no
415  * HP-drive capability, the HP bit is omitted.
416  *
417  * The function doesn't check the input VREF capability bits, though.
418  * Use snd_hda_get_default_vref() to guess the right value.
419  * Also, this function is only for analog pins, not for HDMI pins.
420  */
421 static inline int
422 snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, unsigned int val)
423 {
424 	return _snd_hda_set_pin_ctl(codec, pin, val, false);
425 }
426 
427 /**
428  * snd_hda_set_pin_ctl_cache - Set a pin-control value safely
429  * @codec: the codec instance
430  * @pin: the pin NID to set the control
431  * @val: the pin-control value (AC_PINCTL_* bits)
432  *
433  * Just like snd_hda_set_pin_ctl() but write to cache as well.
434  */
435 static inline int
436 snd_hda_set_pin_ctl_cache(struct hda_codec *codec, hda_nid_t pin,
437 			  unsigned int val)
438 {
439 	return _snd_hda_set_pin_ctl(codec, pin, val, true);
440 }
441 
442 int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid);
443 int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid,
444 				 unsigned int val);
445 
446 #define for_each_hda_codec_node(nid, codec) \
447 	for ((nid) = (codec)->core.start_nid; (nid) < (codec)->core.end_nid; (nid)++)
448 
449 /*
450  * get widget capabilities
451  */
452 static inline u32 get_wcaps(struct hda_codec *codec, hda_nid_t nid)
453 {
454 	if (nid < codec->core.start_nid ||
455 	    nid >= codec->core.start_nid + codec->core.num_nodes)
456 		return 0;
457 	return codec->wcaps[nid - codec->core.start_nid];
458 }
459 
460 /* get the widget type from widget capability bits */
461 static inline int get_wcaps_type(unsigned int wcaps)
462 {
463 	if (!wcaps)
464 		return -1; /* invalid type */
465 	return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
466 }
467 
468 static inline unsigned int get_wcaps_channels(u32 wcaps)
469 {
470 	unsigned int chans;
471 
472 	chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13;
473 	chans = ((chans << 1) | 1) + 1;
474 
475 	return chans;
476 }
477 
478 static inline void snd_hda_override_wcaps(struct hda_codec *codec,
479 					  hda_nid_t nid, u32 val)
480 {
481 	if (nid >= codec->core.start_nid &&
482 	    nid < codec->core.start_nid + codec->core.num_nodes)
483 		codec->wcaps[nid - codec->core.start_nid] = val;
484 }
485 
486 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction);
487 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
488 			      unsigned int caps);
489 /**
490  * snd_hda_query_pin_caps - Query PIN capabilities
491  * @codec: the HD-auio codec
492  * @nid: the NID to query
493  *
494  * Query PIN capabilities for the given widget.
495  * Returns the obtained capability bits.
496  *
497  * When cap bits have been already read, this doesn't read again but
498  * returns the cached value.
499  */
500 static inline u32
501 snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid)
502 {
503 	return snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
504 
505 }
506 
507 /**
508  * snd_hda_override_pin_caps - Override the pin capabilities
509  * @codec: the CODEC
510  * @nid: the NID to override
511  * @caps: the capability bits to set
512  *
513  * Override the cached PIN capabilitiy bits value by the given one.
514  *
515  * Returns zero if successful or a negative error code.
516  */
517 static inline int
518 snd_hda_override_pin_caps(struct hda_codec *codec, hda_nid_t nid,
519 			  unsigned int caps)
520 {
521 	return snd_hdac_override_parm(&codec->core, nid, AC_PAR_PIN_CAP, caps);
522 }
523 
524 bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
525 			   int dir, unsigned int bits);
526 
527 #define nid_has_mute(codec, nid, dir) \
528 	snd_hda_check_amp_caps(codec, nid, dir, (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE))
529 #define nid_has_volume(codec, nid, dir) \
530 	snd_hda_check_amp_caps(codec, nid, dir, AC_AMPCAP_NUM_STEPS)
531 
532 
533 /* flags for hda_nid_item */
534 #define HDA_NID_ITEM_AMP	(1<<0)
535 
536 struct hda_nid_item {
537 	struct snd_kcontrol *kctl;
538 	unsigned int index;
539 	hda_nid_t nid;
540 	unsigned short flags;
541 };
542 
543 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
544 		    struct snd_kcontrol *kctl);
545 int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
546 		    unsigned int index, hda_nid_t nid);
547 void snd_hda_ctls_clear(struct hda_codec *codec);
548 
549 /*
550  * hwdep interface
551  */
552 #ifdef CONFIG_SND_HDA_HWDEP
553 int snd_hda_create_hwdep(struct hda_codec *codec);
554 #else
555 static inline int snd_hda_create_hwdep(struct hda_codec *codec) { return 0; }
556 #endif
557 
558 void snd_hda_sysfs_init(struct hda_codec *codec);
559 void snd_hda_sysfs_clear(struct hda_codec *codec);
560 
561 extern const struct attribute_group *snd_hda_dev_attr_groups[];
562 
563 #ifdef CONFIG_SND_HDA_RECONFIG
564 const char *snd_hda_get_hint(struct hda_codec *codec, const char *key);
565 int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key);
566 int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp);
567 #else
568 static inline
569 const char *snd_hda_get_hint(struct hda_codec *codec, const char *key)
570 {
571 	return NULL;
572 }
573 
574 static inline
575 int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key)
576 {
577 	return -ENOENT;
578 }
579 
580 static inline
581 int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp)
582 {
583 	return -ENOENT;
584 }
585 #endif
586 
587 /*
588  * power-management
589  */
590 
591 void snd_hda_schedule_power_save(struct hda_codec *codec);
592 
593 struct hda_amp_list {
594 	hda_nid_t nid;
595 	unsigned char dir;
596 	unsigned char idx;
597 };
598 
599 struct hda_loopback_check {
600 	const struct hda_amp_list *amplist;
601 	int power_on;
602 };
603 
604 int snd_hda_check_amp_list_power(struct hda_codec *codec,
605 				 struct hda_loopback_check *check,
606 				 hda_nid_t nid);
607 
608 /* check whether the actual power state matches with the target state */
609 static inline bool
610 snd_hda_check_power_state(struct hda_codec *codec, hda_nid_t nid,
611 			  unsigned int target_state)
612 {
613 	return snd_hdac_check_power_state(&codec->core, nid, target_state);
614 }
615 
616 static inline unsigned int snd_hda_sync_power_state(struct hda_codec *codec,
617 						    hda_nid_t nid,
618 						    unsigned int target_state)
619 {
620 	return snd_hdac_sync_power_state(&codec->core, nid, target_state);
621 }
622 unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
623 					     hda_nid_t nid,
624 					     unsigned int power_state);
625 
626 /*
627  * AMP control callbacks
628  */
629 /* retrieve parameters from private_value */
630 #define get_amp_nid_(pv)	((pv) & 0xffff)
631 #define get_amp_nid(kc)		get_amp_nid_((kc)->private_value)
632 #define get_amp_channels(kc)	(((kc)->private_value >> 16) & 0x3)
633 #define get_amp_direction_(pv)	(((pv) >> 18) & 0x1)
634 #define get_amp_direction(kc)	get_amp_direction_((kc)->private_value)
635 #define get_amp_index_(pv)	(((pv) >> 19) & 0xf)
636 #define get_amp_index(kc)	get_amp_index_((kc)->private_value)
637 #define get_amp_offset(kc)	(((kc)->private_value >> 23) & 0x3f)
638 #define get_amp_min_mute(kc)	(((kc)->private_value >> 29) & 0x1)
639 
640 /*
641  * enum control helper
642  */
643 int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
644 			     struct snd_ctl_elem_info *uinfo,
645 			     int num_entries, const char * const *texts);
646 #define snd_hda_enum_bool_helper_info(kcontrol, uinfo) \
647 	snd_hda_enum_helper_info(kcontrol, uinfo, 0, NULL)
648 
649 /*
650  * CEA Short Audio Descriptor data
651  */
652 struct cea_sad {
653 	int	channels;
654 	int	format;		/* (format == 0) indicates invalid SAD */
655 	int	rates;
656 	int	sample_bits;	/* for LPCM */
657 	int	max_bitrate;	/* for AC3...ATRAC */
658 	int	profile;	/* for WMAPRO */
659 };
660 
661 #define ELD_FIXED_BYTES	20
662 #define ELD_MAX_SIZE    256
663 #define ELD_MAX_MNL	16
664 #define ELD_MAX_SAD	16
665 
666 /*
667  * ELD: EDID Like Data
668  */
669 struct parsed_hdmi_eld {
670 	/*
671 	 * all fields will be cleared before updating ELD
672 	 */
673 	int	baseline_len;
674 	int	eld_ver;
675 	int	cea_edid_ver;
676 	char	monitor_name[ELD_MAX_MNL + 1];
677 	int	manufacture_id;
678 	int	product_id;
679 	u64	port_id;
680 	int	support_hdcp;
681 	int	support_ai;
682 	int	conn_type;
683 	int	aud_synch_delay;
684 	int	spk_alloc;
685 	int	sad_count;
686 	struct cea_sad sad[ELD_MAX_SAD];
687 };
688 
689 struct hdmi_eld {
690 	bool	monitor_present;
691 	bool	eld_valid;
692 	int	eld_size;
693 	char    eld_buffer[ELD_MAX_SIZE];
694 	struct parsed_hdmi_eld info;
695 };
696 
697 int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
698 int snd_hdmi_get_eld(struct hda_codec *codec, hda_nid_t nid,
699 		     unsigned char *buf, int *eld_size);
700 int snd_hdmi_parse_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e,
701 		       const unsigned char *buf, int size);
702 void snd_hdmi_show_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e);
703 void snd_hdmi_eld_update_pcm_info(struct parsed_hdmi_eld *e,
704 			      struct hda_pcm_stream *hinfo);
705 
706 int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid,
707 			 unsigned char *buf, int *eld_size,
708 			 bool rev3_or_later);
709 
710 #ifdef CONFIG_SND_PROC_FS
711 void snd_hdmi_print_eld_info(struct hdmi_eld *eld,
712 			     struct snd_info_buffer *buffer);
713 void snd_hdmi_write_eld_info(struct hdmi_eld *eld,
714 			     struct snd_info_buffer *buffer);
715 #endif
716 
717 #define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
718 void snd_print_channel_allocation(int spk_alloc, char *buf, int buflen);
719 
720 /*
721  */
722 #define codec_err(codec, fmt, args...) \
723 	dev_err(hda_codec_dev(codec), fmt, ##args)
724 #define codec_warn(codec, fmt, args...) \
725 	dev_warn(hda_codec_dev(codec), fmt, ##args)
726 #define codec_info(codec, fmt, args...) \
727 	dev_info(hda_codec_dev(codec), fmt, ##args)
728 #define codec_dbg(codec, fmt, args...) \
729 	dev_dbg(hda_codec_dev(codec), fmt, ##args)
730 
731 #endif /* __SOUND_HDA_LOCAL_H */
732