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Linux/sound/pci/hda/hda_codec.h

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  1 /*
  2  * Universal Interface for Intel High Definition Audio Codec
  3  *
  4  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
  5  *
  6  *  This program is free software; you can redistribute it and/or modify it
  7  *  under the terms of the GNU General Public License as published by the Free
  8  *  Software Foundation; either version 2 of the License, or (at your option)
  9  *  any later version.
 10  *
 11  *  This program is distributed in the hope that it will be useful, but WITHOUT
 12  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 13  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 14  *  more details.
 15  *
 16  *  You should have received a copy of the GNU General Public License along with
 17  *  this program; if not, write to the Free Software Foundation, Inc., 59
 18  *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 19  */
 20 
 21 #ifndef __SOUND_HDA_CODEC_H
 22 #define __SOUND_HDA_CODEC_H
 23 
 24 #include <linux/kref.h>
 25 #include <linux/mod_devicetable.h>
 26 #include <sound/info.h>
 27 #include <sound/control.h>
 28 #include <sound/pcm.h>
 29 #include <sound/hwdep.h>
 30 #include <sound/hdaudio.h>
 31 #include <sound/hda_verbs.h>
 32 #include <sound/hda_regmap.h>
 33 
 34 /*
 35  * Structures
 36  */
 37 
 38 struct hda_bus;
 39 struct hda_beep;
 40 struct hda_codec;
 41 struct hda_pcm;
 42 struct hda_pcm_stream;
 43 
 44 /*
 45  * codec bus
 46  *
 47  * each controller needs to creata a hda_bus to assign the accessor.
 48  * A hda_bus contains several codecs in the list codec_list.
 49  */
 50 struct hda_bus {
 51         struct hdac_bus core;
 52 
 53         struct snd_card *card;
 54 
 55         struct pci_dev *pci;
 56         const char *modelname;
 57 
 58         struct mutex prepare_mutex;
 59 
 60         /* assigned PCMs */
 61         DECLARE_BITMAP(pcm_dev_bits, SNDRV_PCM_DEVICES);
 62 
 63         /* misc op flags */
 64         unsigned int needs_damn_long_delay :1;
 65         unsigned int allow_bus_reset:1; /* allow bus reset at fatal error */
 66         /* status for codec/controller */
 67         unsigned int shutdown :1;       /* being unloaded */
 68         unsigned int response_reset:1;  /* controller was reset */
 69         unsigned int in_reset:1;        /* during reset operation */
 70         unsigned int no_response_fallback:1; /* don't fallback at RIRB error */
 71 
 72         int primary_dig_out_type;       /* primary digital out PCM type */
 73         unsigned int mixer_assigned;    /* codec addr for mixer name */
 74 };
 75 
 76 /* from hdac_bus to hda_bus */
 77 #define to_hda_bus(bus)         container_of(bus, struct hda_bus, core)
 78 
 79 /*
 80  * codec preset
 81  *
 82  * Known codecs have the patch to build and set up the controls/PCMs
 83  * better than the generic parser.
 84  */
 85 typedef int (*hda_codec_patch_t)(struct hda_codec *);
 86         
 87 #define HDA_CODEC_ID_GENERIC_HDMI       0x00000101
 88 #define HDA_CODEC_ID_GENERIC            0x00000201
 89 
 90 #define HDA_CODEC_REV_ENTRY(_vid, _rev, _name, _patch) \
 91         { .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
 92           .api_version = HDA_DEV_LEGACY, \
 93           .driver_data = (unsigned long)(_patch) }
 94 #define HDA_CODEC_ENTRY(_vid, _name, _patch) \
 95         HDA_CODEC_REV_ENTRY(_vid, 0, _name, _patch)
 96 
 97 struct hda_codec_driver {
 98         struct hdac_driver core;
 99         const struct hda_device_id *id;
100 };
101 
102 int __hda_codec_driver_register(struct hda_codec_driver *drv, const char *name,
103                                struct module *owner);
104 #define hda_codec_driver_register(drv) \
105         __hda_codec_driver_register(drv, KBUILD_MODNAME, THIS_MODULE)
106 void hda_codec_driver_unregister(struct hda_codec_driver *drv);
107 #define module_hda_codec_driver(drv) \
108         module_driver(drv, hda_codec_driver_register, \
109                       hda_codec_driver_unregister)
110 
111 /* ops set by the preset patch */
112 struct hda_codec_ops {
113         int (*build_controls)(struct hda_codec *codec);
114         int (*build_pcms)(struct hda_codec *codec);
115         int (*init)(struct hda_codec *codec);
116         void (*free)(struct hda_codec *codec);
117         void (*unsol_event)(struct hda_codec *codec, unsigned int res);
118         void (*set_power_state)(struct hda_codec *codec, hda_nid_t fg,
119                                 unsigned int power_state);
120 #ifdef CONFIG_PM
121         int (*suspend)(struct hda_codec *codec);
122         int (*resume)(struct hda_codec *codec);
123         int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
124 #endif
125         void (*reboot_notify)(struct hda_codec *codec);
126         void (*stream_pm)(struct hda_codec *codec, hda_nid_t nid, bool on);
127 };
128 
129 /* PCM callbacks */
130 struct hda_pcm_ops {
131         int (*open)(struct hda_pcm_stream *info, struct hda_codec *codec,
132                     struct snd_pcm_substream *substream);
133         int (*close)(struct hda_pcm_stream *info, struct hda_codec *codec,
134                      struct snd_pcm_substream *substream);
135         int (*prepare)(struct hda_pcm_stream *info, struct hda_codec *codec,
136                        unsigned int stream_tag, unsigned int format,
137                        struct snd_pcm_substream *substream);
138         int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec,
139                        struct snd_pcm_substream *substream);
140         unsigned int (*get_delay)(struct hda_pcm_stream *info,
141                                   struct hda_codec *codec,
142                                   struct snd_pcm_substream *substream);
143 };
144 
145 /* PCM information for each substream */
146 struct hda_pcm_stream {
147         unsigned int substreams;        /* number of substreams, 0 = not exist*/
148         unsigned int channels_min;      /* min. number of channels */
149         unsigned int channels_max;      /* max. number of channels */
150         hda_nid_t nid;  /* default NID to query rates/formats/bps, or set up */
151         u32 rates;      /* supported rates */
152         u64 formats;    /* supported formats (SNDRV_PCM_FMTBIT_) */
153         unsigned int maxbps;    /* supported max. bit per sample */
154         const struct snd_pcm_chmap_elem *chmap; /* chmap to override */
155         struct hda_pcm_ops ops;
156 };
157 
158 /* PCM types */
159 enum {
160         HDA_PCM_TYPE_AUDIO,
161         HDA_PCM_TYPE_SPDIF,
162         HDA_PCM_TYPE_HDMI,
163         HDA_PCM_TYPE_MODEM,
164         HDA_PCM_NTYPES
165 };
166 
167 /* for PCM creation */
168 struct hda_pcm {
169         char *name;
170         struct hda_pcm_stream stream[2];
171         unsigned int pcm_type;  /* HDA_PCM_TYPE_XXX */
172         int device;             /* device number to assign */
173         struct snd_pcm *pcm;    /* assigned PCM instance */
174         bool own_chmap;         /* codec driver provides own channel maps */
175         /* private: */
176         struct hda_codec *codec;
177         struct kref kref;
178         struct list_head list;
179 };
180 
181 /* codec information */
182 struct hda_codec {
183         struct hdac_device core;
184         struct hda_bus *bus;
185         struct snd_card *card;
186         unsigned int addr;      /* codec addr*/
187         u32 probe_id; /* overridden id for probing */
188 
189         /* detected preset */
190         const struct hda_device_id *preset;
191         const char *modelname;  /* model name for preset */
192 
193         /* set by patch */
194         struct hda_codec_ops patch_ops;
195 
196         /* PCM to create, set by patch_ops.build_pcms callback */
197         struct list_head pcm_list_head;
198 
199         /* codec specific info */
200         void *spec;
201 
202         /* beep device */
203         struct hda_beep *beep;
204         unsigned int beep_mode;
205 
206         /* widget capabilities cache */
207         u32 *wcaps;
208 
209         struct snd_array mixers;        /* list of assigned mixer elements */
210         struct snd_array nids;          /* list of mapped mixer elements */
211 
212         struct list_head conn_list;     /* linked-list of connection-list */
213 
214         struct mutex spdif_mutex;
215         struct mutex control_mutex;
216         struct snd_array spdif_out;
217         unsigned int spdif_in_enable;   /* SPDIF input enable? */
218         const hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
219         struct snd_array init_pins;     /* initial (BIOS) pin configurations */
220         struct snd_array driver_pins;   /* pin configs set by codec parser */
221         struct snd_array cvt_setups;    /* audio convert setups */
222 
223         struct mutex user_mutex;
224 #ifdef CONFIG_SND_HDA_RECONFIG
225         struct snd_array init_verbs;    /* additional init verbs */
226         struct snd_array hints;         /* additional hints */
227         struct snd_array user_pins;     /* default pin configs to override */
228 #endif
229 
230 #ifdef CONFIG_SND_HDA_HWDEP
231         struct snd_hwdep *hwdep;        /* assigned hwdep device */
232 #endif
233 
234         /* misc flags */
235         unsigned int in_freeing:1; /* being released */
236         unsigned int registered:1; /* codec was registered */
237         unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each
238                                              * status change
239                                              * (e.g. Realtek codecs)
240                                              */
241         unsigned int pin_amp_workaround:1; /* pin out-amp takes index
242                                             * (e.g. Conexant codecs)
243                                             */
244         unsigned int single_adc_amp:1; /* adc in-amp takes no index
245                                         * (e.g. CX20549 codec)
246                                         */
247         unsigned int no_sticky_stream:1; /* no sticky-PCM stream assignment */
248         unsigned int pins_shutup:1;     /* pins are shut up */
249         unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */
250         unsigned int no_jack_detect:1;  /* Machine has no jack-detection */
251         unsigned int inv_eapd:1; /* broken h/w: inverted EAPD control */
252         unsigned int inv_jack_detect:1; /* broken h/w: inverted detection bit */
253         unsigned int pcm_format_first:1; /* PCM format must be set first */
254         unsigned int cached_write:1;    /* write only to caches */
255         unsigned int dp_mst:1; /* support DP1.2 Multi-stream transport */
256         unsigned int dump_coef:1; /* dump processing coefs in codec proc file */
257         unsigned int power_save_node:1; /* advanced PM for each widget */
258         unsigned int auto_runtime_pm:1; /* enable automatic codec runtime pm */
259 #ifdef CONFIG_PM
260         unsigned long power_on_acct;
261         unsigned long power_off_acct;
262         unsigned long power_jiffies;
263 #endif
264 
265         /* filter the requested power state per nid */
266         unsigned int (*power_filter)(struct hda_codec *codec, hda_nid_t nid,
267                                      unsigned int power_state);
268 
269         /* codec-specific additional proc output */
270         void (*proc_widget_hook)(struct snd_info_buffer *buffer,
271                                  struct hda_codec *codec, hda_nid_t nid);
272 
273         /* jack detection */
274         struct snd_array jacktbl;
275         unsigned long jackpoll_interval; /* In jiffies. Zero means no poll, rely on unsol events */
276         struct delayed_work jackpoll_work;
277 
278         /* jack detection */
279         struct snd_array jacks;
280 
281         int depop_delay; /* depop delay in ms, -1 for default delay time */
282 
283         /* fix-up list */
284         int fixup_id;
285         const struct hda_fixup *fixup_list;
286         const char *fixup_name;
287 
288         /* additional init verbs */
289         struct snd_array verbs;
290 };
291 
292 #define dev_to_hda_codec(_dev)  container_of(_dev, struct hda_codec, core.dev)
293 #define hda_codec_dev(_dev)     (&(_dev)->core.dev)
294 
295 #define list_for_each_codec(c, bus) \
296         list_for_each_entry(c, &(bus)->core.codec_list, core.list)
297 
298 /* snd_hda_codec_read/write optional flags */
299 #define HDA_RW_NO_RESPONSE_FALLBACK     (1 << 0)
300 
301 /*
302  * constructors
303  */
304 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
305                       unsigned int codec_addr, struct hda_codec **codecp);
306 int snd_hda_codec_configure(struct hda_codec *codec);
307 int snd_hda_codec_update_widgets(struct hda_codec *codec);
308 
309 /*
310  * low level functions
311  */
312 static inline unsigned int
313 snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
314                                 int flags,
315                                 unsigned int verb, unsigned int parm)
316 {
317         return snd_hdac_codec_read(&codec->core, nid, flags, verb, parm);
318 }
319 
320 static inline int
321 snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags,
322                         unsigned int verb, unsigned int parm)
323 {
324         return snd_hdac_codec_write(&codec->core, nid, flags, verb, parm);
325 }
326 
327 #define snd_hda_param_read(codec, nid, param) \
328         snd_hdac_read_parm(&(codec)->core, nid, param)
329 #define snd_hda_get_sub_nodes(codec, nid, start_nid) \
330         snd_hdac_get_sub_nodes(&(codec)->core, nid, start_nid)
331 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
332                             hda_nid_t *conn_list, int max_conns);
333 static inline int
334 snd_hda_get_num_conns(struct hda_codec *codec, hda_nid_t nid)
335 {
336         return snd_hda_get_connections(codec, nid, NULL, 0);
337 }
338 
339 #define snd_hda_get_raw_connections(codec, nid, list, max_conns) \
340         snd_hdac_get_connections(&(codec)->core, nid, list, max_conns)
341 #define snd_hda_get_num_raw_conns(codec, nid) \
342         snd_hdac_get_connections(&(codec)->core, nid, NULL, 0);
343 
344 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
345                           const hda_nid_t **listp);
346 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int nums,
347                           const hda_nid_t *list);
348 int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
349                            hda_nid_t nid, int recursive);
350 int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
351                         u8 *dev_list, int max_devices);
352 
353 struct hda_verb {
354         hda_nid_t nid;
355         u32 verb;
356         u32 param;
357 };
358 
359 void snd_hda_sequence_write(struct hda_codec *codec,
360                             const struct hda_verb *seq);
361 
362 /* unsolicited event */
363 static inline void
364 snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
365 {
366         snd_hdac_bus_queue_event(&bus->core, res, res_ex);
367 }
368 
369 /* cached write */
370 static inline int
371 snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
372                           int flags, unsigned int verb, unsigned int parm)
373 {
374         return snd_hdac_regmap_write(&codec->core, nid, verb, parm);
375 }
376 
377 #define snd_hda_codec_update_cache(codec, nid, flags, verb, parm) \
378         snd_hda_codec_write_cache(codec, nid, flags, verb, parm)
379 
380 /* the struct for codec->pin_configs */
381 struct hda_pincfg {
382         hda_nid_t nid;
383         unsigned char ctrl;     /* original pin control value */
384         unsigned char target;   /* target pin control value */
385         unsigned int cfg;       /* default configuration */
386 };
387 
388 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid);
389 int snd_hda_codec_set_pincfg(struct hda_codec *codec, hda_nid_t nid,
390                              unsigned int cfg);
391 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
392                        hda_nid_t nid, unsigned int cfg); /* for hwdep */
393 void snd_hda_shutup_pins(struct hda_codec *codec);
394 
395 /* SPDIF controls */
396 struct hda_spdif_out {
397         hda_nid_t nid;          /* Converter nid values relate to */
398         unsigned int status;    /* IEC958 status bits */
399         unsigned short ctls;    /* SPDIF control bits */
400 };
401 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
402                                                hda_nid_t nid);
403 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx);
404 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid);
405 
406 /*
407  * Mixer
408  */
409 int snd_hda_codec_build_controls(struct hda_codec *codec);
410 
411 /*
412  * PCM
413  */
414 int snd_hda_codec_parse_pcms(struct hda_codec *codec);
415 int snd_hda_codec_build_pcms(struct hda_codec *codec);
416 
417 __printf(2, 3)
418 struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
419                                       const char *fmt, ...);
420 
421 static inline void snd_hda_codec_pcm_get(struct hda_pcm *pcm)
422 {
423         kref_get(&pcm->kref);
424 }
425 void snd_hda_codec_pcm_put(struct hda_pcm *pcm);
426 
427 int snd_hda_codec_prepare(struct hda_codec *codec,
428                           struct hda_pcm_stream *hinfo,
429                           unsigned int stream,
430                           unsigned int format,
431                           struct snd_pcm_substream *substream);
432 void snd_hda_codec_cleanup(struct hda_codec *codec,
433                            struct hda_pcm_stream *hinfo,
434                            struct snd_pcm_substream *substream);
435 
436 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
437                                 u32 stream_tag,
438                                 int channel_id, int format);
439 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
440                                     int do_now);
441 #define snd_hda_codec_cleanup_stream(codec, nid) \
442         __snd_hda_codec_cleanup_stream(codec, nid, 0)
443 
444 #define snd_hda_query_supported_pcm(codec, nid, ratesp, fmtsp, bpsp) \
445         snd_hdac_query_supported_pcm(&(codec)->core, nid, ratesp, fmtsp, bpsp)
446 #define snd_hda_is_supported_format(codec, nid, fmt) \
447         snd_hdac_is_supported_format(&(codec)->core, nid, fmt)
448 
449 extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[];
450 
451 int snd_hda_attach_pcm_stream(struct hda_bus *_bus, struct hda_codec *codec,
452                               struct hda_pcm *cpcm);
453 
454 /*
455  * Misc
456  */
457 void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
458 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
459                                     unsigned int power_state);
460 
461 int snd_hda_lock_devices(struct hda_bus *bus);
462 void snd_hda_unlock_devices(struct hda_bus *bus);
463 void snd_hda_bus_reset(struct hda_bus *bus);
464 void snd_hda_bus_reset_codecs(struct hda_bus *bus);
465 
466 int snd_hda_codec_set_name(struct hda_codec *codec, const char *name);
467 
468 /*
469  * power management
470  */
471 extern const struct dev_pm_ops hda_codec_driver_pm;
472 
473 static inline
474 int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid)
475 {
476 #ifdef CONFIG_PM
477         if (codec->patch_ops.check_power_status)
478                 return codec->patch_ops.check_power_status(codec, nid);
479 #endif
480         return 0;
481 }
482 
483 /*
484  * power saving
485  */
486 #define snd_hda_power_up(codec)         snd_hdac_power_up(&(codec)->core)
487 #define snd_hda_power_up_pm(codec)      snd_hdac_power_up_pm(&(codec)->core)
488 #define snd_hda_power_down(codec)       snd_hdac_power_down(&(codec)->core)
489 #define snd_hda_power_down_pm(codec)    snd_hdac_power_down_pm(&(codec)->core)
490 #ifdef CONFIG_PM
491 void snd_hda_set_power_save(struct hda_bus *bus, int delay);
492 void snd_hda_update_power_acct(struct hda_codec *codec);
493 #else
494 static inline void snd_hda_set_power_save(struct hda_bus *bus, int delay) {}
495 #endif
496 
497 #ifdef CONFIG_SND_HDA_PATCH_LOADER
498 /*
499  * patch firmware
500  */
501 int snd_hda_load_patch(struct hda_bus *bus, size_t size, const void *buf);
502 #endif
503 
504 #ifdef CONFIG_SND_HDA_DSP_LOADER
505 int snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
506                                    unsigned int size,
507                                    struct snd_dma_buffer *bufp);
508 void snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start);
509 void snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
510                                     struct snd_dma_buffer *dmab);
511 #else
512 static inline int
513 snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
514                                 unsigned int size,
515                                 struct snd_dma_buffer *bufp)
516 {
517         return -ENOSYS;
518 }
519 static inline void
520 snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start) {}
521 static inline void
522 snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
523                                 struct snd_dma_buffer *dmab) {}
524 #endif
525 
526 #endif /* __SOUND_HDA_CODEC_H */
527 

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