hda_local.h 17 KB

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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. #ifndef __SOUND_HDA_LOCAL_H
  23. #define __SOUND_HDA_LOCAL_H
  24. /*
  25. * for mixer controls
  26. */
  27. #define HDA_COMPOSE_AMP_VAL_OFS(nid,chs,idx,dir,ofs) \
  28. ((nid) | ((chs)<<16) | ((dir)<<18) | ((idx)<<19) | ((ofs)<<23))
  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, direction) \
  33. { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
  34. .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
  35. SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
  36. SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \
  37. .info = snd_hda_mixer_amp_volume_info, \
  38. .get = snd_hda_mixer_amp_volume_get, \
  39. .put = snd_hda_mixer_amp_volume_put, \
  40. .tlv = { .c = snd_hda_mixer_amp_tlv }, \
  41. .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
  42. /* stereo volume with index */
  43. #define HDA_CODEC_VOLUME_IDX(xname, xcidx, nid, xindex, direction) \
  44. HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, 3, xindex, direction)
  45. /* mono volume */
  46. #define HDA_CODEC_VOLUME_MONO(xname, nid, channel, xindex, direction) \
  47. HDA_CODEC_VOLUME_MONO_IDX(xname, 0, nid, channel, xindex, direction)
  48. /* stereo volume */
  49. #define HDA_CODEC_VOLUME(xname, nid, xindex, direction) \
  50. HDA_CODEC_VOLUME_MONO(xname, nid, 3, xindex, direction)
  51. /* mono mute switch with index (index=0,1,...) (channel=1,2) */
  52. #define HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
  53. { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
  54. .info = snd_hda_mixer_amp_switch_info, \
  55. .get = snd_hda_mixer_amp_switch_get, \
  56. .put = snd_hda_mixer_amp_switch_put, \
  57. .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
  58. /* stereo mute switch with index */
  59. #define HDA_CODEC_MUTE_IDX(xname, xcidx, nid, xindex, direction) \
  60. HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, 3, xindex, direction)
  61. /* mono mute switch */
  62. #define HDA_CODEC_MUTE_MONO(xname, nid, channel, xindex, direction) \
  63. HDA_CODEC_MUTE_MONO_IDX(xname, 0, nid, channel, xindex, direction)
  64. /* stereo mute switch */
  65. #define HDA_CODEC_MUTE(xname, nid, xindex, direction) \
  66. HDA_CODEC_MUTE_MONO(xname, nid, 3, xindex, direction)
  67. int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
  68. struct snd_ctl_elem_info *uinfo);
  69. int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
  70. struct snd_ctl_elem_value *ucontrol);
  71. int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
  72. struct snd_ctl_elem_value *ucontrol);
  73. int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
  74. unsigned int size, unsigned int __user *tlv);
  75. int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
  76. struct snd_ctl_elem_info *uinfo);
  77. int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
  78. struct snd_ctl_elem_value *ucontrol);
  79. int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
  80. struct snd_ctl_elem_value *ucontrol);
  81. /* lowlevel accessor with caching; use carefully */
  82. int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
  83. int direction, int index);
  84. int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
  85. int direction, int idx, int mask, int val);
  86. int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
  87. int dir, int idx, int mask, int val);
  88. #ifdef SND_HDA_NEEDS_RESUME
  89. void snd_hda_codec_resume_amp(struct hda_codec *codec);
  90. #endif
  91. void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
  92. unsigned int *tlv);
  93. struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
  94. const char *name);
  95. int snd_hda_add_vmaster(struct hda_codec *codec, char *name,
  96. unsigned int *tlv, const char **slaves);
  97. void snd_hda_codec_reset(struct hda_codec *codec);
  98. int snd_hda_codec_configure(struct hda_codec *codec);
  99. /* amp value bits */
  100. #define HDA_AMP_MUTE 0x80
  101. #define HDA_AMP_UNMUTE 0x00
  102. #define HDA_AMP_VOLMASK 0x7f
  103. /* mono switch binding multiple inputs */
  104. #define HDA_BIND_MUTE_MONO(xname, nid, channel, indices, direction) \
  105. { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0, \
  106. .info = snd_hda_mixer_amp_switch_info, \
  107. .get = snd_hda_mixer_bind_switch_get, \
  108. .put = snd_hda_mixer_bind_switch_put, \
  109. .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, indices, direction) }
  110. /* stereo switch binding multiple inputs */
  111. #define HDA_BIND_MUTE(xname,nid,indices,dir) \
  112. HDA_BIND_MUTE_MONO(xname,nid,3,indices,dir)
  113. int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
  114. struct snd_ctl_elem_value *ucontrol);
  115. int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
  116. struct snd_ctl_elem_value *ucontrol);
  117. /* more generic bound controls */
  118. struct hda_ctl_ops {
  119. snd_kcontrol_info_t *info;
  120. snd_kcontrol_get_t *get;
  121. snd_kcontrol_put_t *put;
  122. snd_kcontrol_tlv_rw_t *tlv;
  123. };
  124. extern struct hda_ctl_ops snd_hda_bind_vol; /* for bind-volume with TLV */
  125. extern struct hda_ctl_ops snd_hda_bind_sw; /* for bind-switch */
  126. struct hda_bind_ctls {
  127. struct hda_ctl_ops *ops;
  128. long values[];
  129. };
  130. int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
  131. struct snd_ctl_elem_info *uinfo);
  132. int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
  133. struct snd_ctl_elem_value *ucontrol);
  134. int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
  135. struct snd_ctl_elem_value *ucontrol);
  136. int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
  137. unsigned int size, unsigned int __user *tlv);
  138. #define HDA_BIND_VOL(xname, bindrec) \
  139. { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
  140. .name = xname, \
  141. .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |\
  142. SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  143. SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK,\
  144. .info = snd_hda_mixer_bind_ctls_info,\
  145. .get = snd_hda_mixer_bind_ctls_get,\
  146. .put = snd_hda_mixer_bind_ctls_put,\
  147. .tlv = { .c = snd_hda_mixer_bind_tlv },\
  148. .private_value = (long) (bindrec) }
  149. #define HDA_BIND_SW(xname, bindrec) \
  150. { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
  151. .name = xname, \
  152. .info = snd_hda_mixer_bind_ctls_info,\
  153. .get = snd_hda_mixer_bind_ctls_get,\
  154. .put = snd_hda_mixer_bind_ctls_put,\
  155. .private_value = (long) (bindrec) }
  156. /*
  157. * SPDIF I/O
  158. */
  159. int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid);
  160. int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid);
  161. /*
  162. * input MUX helper
  163. */
  164. #define HDA_MAX_NUM_INPUTS 16
  165. struct hda_input_mux_item {
  166. const char *label;
  167. unsigned int index;
  168. };
  169. struct hda_input_mux {
  170. unsigned int num_items;
  171. struct hda_input_mux_item items[HDA_MAX_NUM_INPUTS];
  172. };
  173. int snd_hda_input_mux_info(const struct hda_input_mux *imux,
  174. struct snd_ctl_elem_info *uinfo);
  175. int snd_hda_input_mux_put(struct hda_codec *codec,
  176. const struct hda_input_mux *imux,
  177. struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
  178. unsigned int *cur_val);
  179. /*
  180. * Channel mode helper
  181. */
  182. struct hda_channel_mode {
  183. int channels;
  184. const struct hda_verb *sequence;
  185. };
  186. int snd_hda_ch_mode_info(struct hda_codec *codec,
  187. struct snd_ctl_elem_info *uinfo,
  188. const struct hda_channel_mode *chmode,
  189. int num_chmodes);
  190. int snd_hda_ch_mode_get(struct hda_codec *codec,
  191. struct snd_ctl_elem_value *ucontrol,
  192. const struct hda_channel_mode *chmode,
  193. int num_chmodes,
  194. int max_channels);
  195. int snd_hda_ch_mode_put(struct hda_codec *codec,
  196. struct snd_ctl_elem_value *ucontrol,
  197. const struct hda_channel_mode *chmode,
  198. int num_chmodes,
  199. int *max_channelsp);
  200. /*
  201. * Multi-channel / digital-out PCM helper
  202. */
  203. enum { HDA_FRONT, HDA_REAR, HDA_CLFE, HDA_SIDE }; /* index for dac_nidx */
  204. enum { HDA_DIG_NONE, HDA_DIG_EXCLUSIVE, HDA_DIG_ANALOG_DUP }; /* dig_out_used */
  205. struct hda_multi_out {
  206. int num_dacs; /* # of DACs, must be more than 1 */
  207. hda_nid_t *dac_nids; /* DAC list */
  208. hda_nid_t hp_nid; /* optional DAC for HP, 0 when not exists */
  209. hda_nid_t extra_out_nid[3]; /* optional DACs, 0 when not exists */
  210. hda_nid_t dig_out_nid; /* digital out audio widget */
  211. int max_channels; /* currently supported analog channels */
  212. int dig_out_used; /* current usage of digital out (HDA_DIG_XXX) */
  213. int no_share_stream; /* don't share a stream with multiple pins */
  214. int share_spdif; /* share SPDIF pin */
  215. /* PCM information for both analog and SPDIF DACs */
  216. unsigned int analog_rates;
  217. unsigned int analog_maxbps;
  218. u64 analog_formats;
  219. unsigned int spdif_rates;
  220. unsigned int spdif_maxbps;
  221. u64 spdif_formats;
  222. };
  223. int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
  224. struct hda_multi_out *mout);
  225. int snd_hda_multi_out_dig_open(struct hda_codec *codec,
  226. struct hda_multi_out *mout);
  227. int snd_hda_multi_out_dig_close(struct hda_codec *codec,
  228. struct hda_multi_out *mout);
  229. int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
  230. struct hda_multi_out *mout,
  231. unsigned int stream_tag,
  232. unsigned int format,
  233. struct snd_pcm_substream *substream);
  234. int snd_hda_multi_out_analog_open(struct hda_codec *codec,
  235. struct hda_multi_out *mout,
  236. struct snd_pcm_substream *substream,
  237. struct hda_pcm_stream *hinfo);
  238. int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
  239. struct hda_multi_out *mout,
  240. unsigned int stream_tag,
  241. unsigned int format,
  242. struct snd_pcm_substream *substream);
  243. int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
  244. struct hda_multi_out *mout);
  245. /*
  246. * generic codec parser
  247. */
  248. #ifdef CONFIG_SND_HDA_GENERIC
  249. int snd_hda_parse_generic_codec(struct hda_codec *codec);
  250. #else
  251. static inline int snd_hda_parse_generic_codec(struct hda_codec *codec)
  252. {
  253. return -ENODEV;
  254. }
  255. #endif
  256. /*
  257. * generic proc interface
  258. */
  259. #ifdef CONFIG_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. #define SND_PRINT_RATES_ADVISED_BUFSIZE 80
  265. void snd_print_pcm_rates(int pcm, char *buf, int buflen);
  266. #define SND_PRINT_BITS_ADVISED_BUFSIZE 16
  267. void snd_print_pcm_bits(int pcm, char *buf, int buflen);
  268. /*
  269. * Misc
  270. */
  271. int snd_hda_check_board_config(struct hda_codec *codec, int num_configs,
  272. const char **modelnames,
  273. const struct snd_pci_quirk *pci_list);
  274. int snd_hda_check_board_codec_sid_config(struct hda_codec *codec,
  275. int num_configs, const char **models,
  276. const struct snd_pci_quirk *tbl);
  277. int snd_hda_add_new_ctls(struct hda_codec *codec,
  278. struct snd_kcontrol_new *knew);
  279. /*
  280. * unsolicited event handler
  281. */
  282. #define HDA_UNSOL_QUEUE_SIZE 64
  283. struct hda_bus_unsolicited {
  284. /* ring buffer */
  285. u32 queue[HDA_UNSOL_QUEUE_SIZE * 2];
  286. unsigned int rp, wp;
  287. /* workqueue */
  288. struct work_struct work;
  289. struct hda_bus *bus;
  290. };
  291. /*
  292. * Helper for automatic ping configuration
  293. */
  294. enum {
  295. AUTO_PIN_MIC,
  296. AUTO_PIN_FRONT_MIC,
  297. AUTO_PIN_LINE,
  298. AUTO_PIN_FRONT_LINE,
  299. AUTO_PIN_CD,
  300. AUTO_PIN_AUX,
  301. AUTO_PIN_LAST
  302. };
  303. enum {
  304. AUTO_PIN_LINE_OUT,
  305. AUTO_PIN_SPEAKER_OUT,
  306. AUTO_PIN_HP_OUT
  307. };
  308. extern const char *auto_pin_cfg_labels[AUTO_PIN_LAST];
  309. #define AUTO_CFG_MAX_OUTS 5
  310. struct auto_pin_cfg {
  311. int line_outs;
  312. /* sorted in the order of Front/Surr/CLFE/Side */
  313. hda_nid_t line_out_pins[AUTO_CFG_MAX_OUTS];
  314. int speaker_outs;
  315. hda_nid_t speaker_pins[AUTO_CFG_MAX_OUTS];
  316. int hp_outs;
  317. int line_out_type; /* AUTO_PIN_XXX_OUT */
  318. hda_nid_t hp_pins[AUTO_CFG_MAX_OUTS];
  319. hda_nid_t input_pins[AUTO_PIN_LAST];
  320. hda_nid_t dig_out_pin;
  321. hda_nid_t dig_in_pin;
  322. hda_nid_t mono_out_pin;
  323. };
  324. #define get_defcfg_connect(cfg) \
  325. ((cfg & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT)
  326. #define get_defcfg_association(cfg) \
  327. ((cfg & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT)
  328. #define get_defcfg_location(cfg) \
  329. ((cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT)
  330. #define get_defcfg_sequence(cfg) \
  331. (cfg & AC_DEFCFG_SEQUENCE)
  332. #define get_defcfg_device(cfg) \
  333. ((cfg & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT)
  334. int snd_hda_parse_pin_def_config(struct hda_codec *codec,
  335. struct auto_pin_cfg *cfg,
  336. hda_nid_t *ignore_nids);
  337. /* amp values */
  338. #define AMP_IN_MUTE(idx) (0x7080 | ((idx)<<8))
  339. #define AMP_IN_UNMUTE(idx) (0x7000 | ((idx)<<8))
  340. #define AMP_OUT_MUTE 0xb080
  341. #define AMP_OUT_UNMUTE 0xb000
  342. #define AMP_OUT_ZERO 0xb000
  343. /* pinctl values */
  344. #define PIN_IN (AC_PINCTL_IN_EN)
  345. #define PIN_VREFHIZ (AC_PINCTL_IN_EN | AC_PINCTL_VREF_HIZ)
  346. #define PIN_VREF50 (AC_PINCTL_IN_EN | AC_PINCTL_VREF_50)
  347. #define PIN_VREFGRD (AC_PINCTL_IN_EN | AC_PINCTL_VREF_GRD)
  348. #define PIN_VREF80 (AC_PINCTL_IN_EN | AC_PINCTL_VREF_80)
  349. #define PIN_VREF100 (AC_PINCTL_IN_EN | AC_PINCTL_VREF_100)
  350. #define PIN_OUT (AC_PINCTL_OUT_EN)
  351. #define PIN_HP (AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN)
  352. #define PIN_HP_AMP (AC_PINCTL_HP_EN)
  353. /*
  354. * get widget capabilities
  355. */
  356. static inline u32 get_wcaps(struct hda_codec *codec, hda_nid_t nid)
  357. {
  358. if (nid < codec->start_nid ||
  359. nid >= codec->start_nid + codec->num_nodes)
  360. return 0;
  361. return codec->wcaps[nid - codec->start_nid];
  362. }
  363. u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction);
  364. int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
  365. unsigned int caps);
  366. int snd_hda_ctl_add(struct hda_codec *codec, struct snd_kcontrol *kctl);
  367. void snd_hda_ctls_clear(struct hda_codec *codec);
  368. /*
  369. * hwdep interface
  370. */
  371. #ifdef CONFIG_SND_HDA_HWDEP
  372. int snd_hda_create_hwdep(struct hda_codec *codec);
  373. #else
  374. static inline int snd_hda_create_hwdep(struct hda_codec *codec) { return 0; }
  375. #endif
  376. #ifdef CONFIG_SND_HDA_RECONFIG
  377. int snd_hda_hwdep_add_sysfs(struct hda_codec *codec);
  378. #else
  379. static inline int snd_hda_hwdep_add_sysfs(struct hda_codec *codec)
  380. {
  381. return 0;
  382. }
  383. #endif
  384. /*
  385. * power-management
  386. */
  387. #ifdef CONFIG_SND_HDA_POWER_SAVE
  388. void snd_hda_schedule_power_save(struct hda_codec *codec);
  389. struct hda_amp_list {
  390. hda_nid_t nid;
  391. unsigned char dir;
  392. unsigned char idx;
  393. };
  394. struct hda_loopback_check {
  395. struct hda_amp_list *amplist;
  396. int power_on;
  397. };
  398. int snd_hda_check_amp_list_power(struct hda_codec *codec,
  399. struct hda_loopback_check *check,
  400. hda_nid_t nid);
  401. #endif /* CONFIG_SND_HDA_POWER_SAVE */
  402. /*
  403. * AMP control callbacks
  404. */
  405. /* retrieve parameters from private_value */
  406. #define get_amp_nid(kc) ((kc)->private_value & 0xffff)
  407. #define get_amp_channels(kc) (((kc)->private_value >> 16) & 0x3)
  408. #define get_amp_direction(kc) (((kc)->private_value >> 18) & 0x1)
  409. #define get_amp_index(kc) (((kc)->private_value >> 19) & 0xf)
  410. #define get_amp_offset(kc) (((kc)->private_value >> 23) & 0x3f)
  411. /*
  412. * CEA Short Audio Descriptor data
  413. */
  414. struct cea_sad {
  415. int channels;
  416. int format; /* (format == 0) indicates invalid SAD */
  417. int rates;
  418. int sample_bits; /* for LPCM */
  419. int max_bitrate; /* for AC3...ATRAC */
  420. int profile; /* for WMAPRO */
  421. };
  422. #define ELD_FIXED_BYTES 20
  423. #define ELD_MAX_MNL 16
  424. #define ELD_MAX_SAD 16
  425. /*
  426. * ELD: EDID Like Data
  427. */
  428. struct hdmi_eld {
  429. int eld_size;
  430. int baseline_len;
  431. int eld_ver; /* (eld_ver == 0) indicates invalid ELD */
  432. int cea_edid_ver;
  433. char monitor_name[ELD_MAX_MNL + 1];
  434. int manufacture_id;
  435. int product_id;
  436. u64 port_id;
  437. int support_hdcp;
  438. int support_ai;
  439. int conn_type;
  440. int aud_synch_delay;
  441. int spk_alloc;
  442. int sad_count;
  443. struct cea_sad sad[ELD_MAX_SAD];
  444. #ifdef CONFIG_PROC_FS
  445. struct snd_info_entry *proc_entry;
  446. #endif
  447. };
  448. int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
  449. int snd_hdmi_get_eld(struct hdmi_eld *, struct hda_codec *, hda_nid_t);
  450. void snd_hdmi_show_eld(struct hdmi_eld *eld);
  451. #ifdef CONFIG_PROC_FS
  452. int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld);
  453. void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld);
  454. #else
  455. static inline int snd_hda_eld_proc_new(struct hda_codec *codec,
  456. struct hdmi_eld *eld)
  457. {
  458. return 0;
  459. }
  460. static inline void snd_hda_eld_proc_free(struct hda_codec *codec,
  461. struct hdmi_eld *eld)
  462. {
  463. }
  464. #endif
  465. #define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
  466. void snd_print_channel_allocation(int spk_alloc, char *buf, int buflen);
  467. #endif /* __SOUND_HDA_LOCAL_H */