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linux_dsm_epyc7002/sound/pci/hda/hda_codec.h
Takashi Iwai cc72da7d4d ALSA: hda - Use standard runtime PM for codec power-save control 
Like the previous transition of suspend/resume, now move the
power-save code to the standard runtime PM.  As usual for runtime PM,
it's a bit tricky, but this simplified codes a lot in the end.

For keeping the usage compatibility, power_save module option still
controls the whole power-saving behavior on all codecs.  The value is
translated to pm_runtime_*_autosuspend() and pm_runtime_allow() /
pm_runtime_forbid() calls.

snd_hda_power_up() and snd_hda_power_down() are translated to
pm_runtime_get_sync() and pm_runtime_put_autosuspend(), respectively.
Since we can do call pm_runtime_get_sync() more reliably, the sync
version is used always and snd_hda_power_up_d3wait() is dropped.
Another slight difference is that snd_hda_power_up()/down() don't call
runtime_pm code during the suspend/resume transition phase.  Calling
them there isn't safe unlike our own code, resulted in unexpected
behavior (endless wakeups).

The hda_power_count tracepoint was removed, as it doesn't match well
with the new code.

Last but not least, we need to set ignore_children flag in the parent
dev.power field so that the runtime PM of the controller chip won't
get confused.  The notification is still done in the bus pm_notify
callback.  We'll get rid of this hack in the later patch.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-23 09:16:07 +01:00

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/*
* Universal Interface for Intel High Definition Audio Codec
*
* Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __SOUND_HDA_CODEC_H
#define __SOUND_HDA_CODEC_H
#include <sound/info.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/hwdep.h>
#include <sound/hda_verbs.h>
/*
* generic arrays
*/
struct snd_array {
unsigned int used;
unsigned int alloced;
unsigned int elem_size;
unsigned int alloc_align;
void *list;
};
void *snd_array_new(struct snd_array *array);
void snd_array_free(struct snd_array *array);
static inline void snd_array_init(struct snd_array *array, unsigned int size,
unsigned int align)
{
array->elem_size = size;
array->alloc_align = align;
}
static inline void *snd_array_elem(struct snd_array *array, unsigned int idx)
{
return array->list + idx * array->elem_size;
}
static inline unsigned int snd_array_index(struct snd_array *array, void *ptr)
{
return (unsigned long)(ptr - array->list) / array->elem_size;
}
/*
* Structures
*/
struct hda_bus;
struct hda_beep;
struct hda_codec;
struct hda_pcm;
struct hda_pcm_stream;
/* NID type */
typedef u16 hda_nid_t;
/* bus operators */
struct hda_bus_ops {
/* send a single command */
int (*command)(struct hda_bus *bus, unsigned int cmd);
/* get a response from the last command */
unsigned int (*get_response)(struct hda_bus *bus, unsigned int addr);
/* free the private data */
void (*private_free)(struct hda_bus *);
/* attach a PCM stream */
int (*attach_pcm)(struct hda_bus *bus, struct hda_codec *codec,
struct hda_pcm *pcm);
/* reset bus for retry verb */
void (*bus_reset)(struct hda_bus *bus);
#ifdef CONFIG_PM
/* notify power-up/down from codec to controller */
void (*pm_notify)(struct hda_bus *bus, bool power_up);
#endif
#ifdef CONFIG_SND_HDA_DSP_LOADER
/* prepare DSP transfer */
int (*load_dsp_prepare)(struct hda_bus *bus, unsigned int format,
unsigned int byte_size,
struct snd_dma_buffer *bufp);
/* start/stop DSP transfer */
void (*load_dsp_trigger)(struct hda_bus *bus, bool start);
/* clean up DSP transfer */
void (*load_dsp_cleanup)(struct hda_bus *bus,
struct snd_dma_buffer *dmab);
#endif
};
/* unsolicited event handler */
#define HDA_UNSOL_QUEUE_SIZE 64
struct hda_bus_unsolicited {
/* ring buffer */
u32 queue[HDA_UNSOL_QUEUE_SIZE * 2];
unsigned int rp, wp;
/* workqueue */
struct work_struct work;
};
/*
* codec bus
*
* each controller needs to creata a hda_bus to assign the accessor.
* A hda_bus contains several codecs in the list codec_list.
*/
struct hda_bus {
struct snd_card *card;
void *private_data;
struct pci_dev *pci;
const char *modelname;
int *power_save;
struct hda_bus_ops ops;
/* codec linked list */
struct list_head codec_list;
unsigned int num_codecs;
/* link caddr -> codec */
struct hda_codec *caddr_tbl[HDA_MAX_CODEC_ADDRESS + 1];
struct mutex cmd_mutex;
struct mutex prepare_mutex;
/* unsolicited event queue */
struct hda_bus_unsolicited unsol;
char workq_name[16];
struct workqueue_struct *workq; /* common workqueue for codecs */
/* assigned PCMs */
DECLARE_BITMAP(pcm_dev_bits, SNDRV_PCM_DEVICES);
/* misc op flags */
unsigned int needs_damn_long_delay :1;
unsigned int allow_bus_reset:1; /* allow bus reset at fatal error */
unsigned int sync_write:1; /* sync after verb write */
/* status for codec/controller */
unsigned int shutdown :1; /* being unloaded */
unsigned int rirb_error:1; /* error in codec communication */
unsigned int response_reset:1; /* controller was reset */
unsigned int in_reset:1; /* during reset operation */
unsigned int power_keep_link_on:1; /* don't power off HDA link */
unsigned int no_response_fallback:1; /* don't fallback at RIRB error */
int primary_dig_out_type; /* primary digital out PCM type */
};
/*
* codec preset
*
* Known codecs have the patch to build and set up the controls/PCMs
* better than the generic parser.
*/
struct hda_codec_preset {
unsigned int id;
unsigned int mask;
unsigned int subs;
unsigned int subs_mask;
unsigned int rev;
hda_nid_t afg, mfg;
const char *name;
int (*patch)(struct hda_codec *codec);
};
#define HDA_CODEC_ID_GENERIC_HDMI 0x00000101
#define HDA_CODEC_ID_GENERIC 0x00000201
struct hda_codec_driver {
struct device_driver driver;
const struct hda_codec_preset *preset;
};
int __hda_codec_driver_register(struct hda_codec_driver *drv, const char *name,
struct module *owner);
#define hda_codec_driver_register(drv) \
__hda_codec_driver_register(drv, KBUILD_MODNAME, THIS_MODULE)
void hda_codec_driver_unregister(struct hda_codec_driver *drv);
#define module_hda_codec_driver(drv) \
module_driver(drv, hda_codec_driver_register, \
hda_codec_driver_unregister)
/* ops set by the preset patch */
struct hda_codec_ops {
int (*build_controls)(struct hda_codec *codec);
int (*build_pcms)(struct hda_codec *codec);
int (*init)(struct hda_codec *codec);
void (*free)(struct hda_codec *codec);
void (*unsol_event)(struct hda_codec *codec, unsigned int res);
void (*set_power_state)(struct hda_codec *codec, hda_nid_t fg,
unsigned int power_state);
#ifdef CONFIG_PM
int (*suspend)(struct hda_codec *codec);
int (*resume)(struct hda_codec *codec);
int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
#endif
void (*reboot_notify)(struct hda_codec *codec);
};
/* record for amp information cache */
struct hda_cache_head {
u32 key:31; /* hash key */
u32 dirty:1;
u16 val; /* assigned value */
u16 next;
};
struct hda_amp_info {
struct hda_cache_head head;
u32 amp_caps; /* amp capabilities */
u16 vol[2]; /* current volume & mute */
};
struct hda_cache_rec {
u16 hash[64]; /* hash table for index */
struct snd_array buf; /* record entries */
};
/* PCM callbacks */
struct hda_pcm_ops {
int (*open)(struct hda_pcm_stream *info, struct hda_codec *codec,
struct snd_pcm_substream *substream);
int (*close)(struct hda_pcm_stream *info, struct hda_codec *codec,
struct snd_pcm_substream *substream);
int (*prepare)(struct hda_pcm_stream *info, struct hda_codec *codec,
unsigned int stream_tag, unsigned int format,
struct snd_pcm_substream *substream);
int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec,
struct snd_pcm_substream *substream);
unsigned int (*get_delay)(struct hda_pcm_stream *info,
struct hda_codec *codec,
struct snd_pcm_substream *substream);
};
/* PCM information for each substream */
struct hda_pcm_stream {
unsigned int substreams; /* number of substreams, 0 = not exist*/
unsigned int channels_min; /* min. number of channels */
unsigned int channels_max; /* max. number of channels */
hda_nid_t nid; /* default NID to query rates/formats/bps, or set up */
u32 rates; /* supported rates */
u64 formats; /* supported formats (SNDRV_PCM_FMTBIT_) */
unsigned int maxbps; /* supported max. bit per sample */
const struct snd_pcm_chmap_elem *chmap; /* chmap to override */
struct hda_pcm_ops ops;
};
/* PCM types */
enum {
HDA_PCM_TYPE_AUDIO,
HDA_PCM_TYPE_SPDIF,
HDA_PCM_TYPE_HDMI,
HDA_PCM_TYPE_MODEM,
HDA_PCM_NTYPES
};
/* for PCM creation */
struct hda_pcm {
char *name;
struct hda_pcm_stream stream[2];
unsigned int pcm_type; /* HDA_PCM_TYPE_XXX */
int device; /* device number to assign */
struct snd_pcm *pcm; /* assigned PCM instance */
bool own_chmap; /* codec driver provides own channel maps */
};
/* codec information */
struct hda_codec {
struct device dev;
struct hda_bus *bus;
unsigned int addr; /* codec addr*/
struct list_head list; /* list point */
hda_nid_t afg; /* AFG node id */
hda_nid_t mfg; /* MFG node id */
/* ids */
u8 afg_function_id;
u8 mfg_function_id;
u8 afg_unsol;
u8 mfg_unsol;
u32 vendor_id;
u32 subsystem_id;
u32 revision_id;
u32 probe_id; /* overridden id for probing */
/* detected preset */
const struct hda_codec_preset *preset;
const char *vendor_name; /* codec vendor name */
const char *chip_name; /* codec chip name */
const char *modelname; /* model name for preset */
/* set by patch */
struct hda_codec_ops patch_ops;
/* PCM to create, set by patch_ops.build_pcms callback */
unsigned int num_pcms;
struct hda_pcm *pcm_info;
/* codec specific info */
void *spec;
/* beep device */
struct hda_beep *beep;
unsigned int beep_mode;
/* widget capabilities cache */
unsigned int num_nodes;
hda_nid_t start_nid;
u32 *wcaps;
struct snd_array mixers; /* list of assigned mixer elements */
struct snd_array nids; /* list of mapped mixer elements */
struct hda_cache_rec amp_cache; /* cache for amp access */
struct hda_cache_rec cmd_cache; /* cache for other commands */
struct list_head conn_list; /* linked-list of connection-list */
struct mutex spdif_mutex;
struct mutex control_mutex;
struct mutex hash_mutex;
struct snd_array spdif_out;
unsigned int spdif_in_enable; /* SPDIF input enable? */
const hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
struct snd_array init_pins; /* initial (BIOS) pin configurations */
struct snd_array driver_pins; /* pin configs set by codec parser */
struct snd_array cvt_setups; /* audio convert setups */
struct mutex user_mutex;
#ifdef CONFIG_SND_HDA_RECONFIG
struct snd_array init_verbs; /* additional init verbs */
struct snd_array hints; /* additional hints */
struct snd_array user_pins; /* default pin configs to override */
#endif
#ifdef CONFIG_SND_HDA_HWDEP
struct snd_hwdep *hwdep; /* assigned hwdep device */
#endif
/* misc flags */
unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each
* status change
* (e.g. Realtek codecs)
*/
unsigned int pin_amp_workaround:1; /* pin out-amp takes index
* (e.g. Conexant codecs)
*/
unsigned int single_adc_amp:1; /* adc in-amp takes no index
* (e.g. CX20549 codec)
*/
unsigned int no_sticky_stream:1; /* no sticky-PCM stream assignment */
unsigned int pins_shutup:1; /* pins are shut up */
unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */
unsigned int no_jack_detect:1; /* Machine has no jack-detection */
unsigned int inv_eapd:1; /* broken h/w: inverted EAPD control */
unsigned int inv_jack_detect:1; /* broken h/w: inverted detection bit */
unsigned int pcm_format_first:1; /* PCM format must be set first */
unsigned int epss:1; /* supporting EPSS? */
unsigned int cached_write:1; /* write only to caches */
unsigned int dp_mst:1; /* support DP1.2 Multi-stream transport */
unsigned int dump_coef:1; /* dump processing coefs in codec proc file */
#ifdef CONFIG_PM
unsigned int d3_stop_clk:1; /* support D3 operation without BCLK */
unsigned int pm_up_notified:1; /* PM notified to controller */
atomic_t in_pm; /* suspend/resume being performed */
unsigned long power_on_acct;
unsigned long power_off_acct;
unsigned long power_jiffies;
#endif
/* filter the requested power state per nid */
unsigned int (*power_filter)(struct hda_codec *codec, hda_nid_t nid,
unsigned int power_state);
/* codec-specific additional proc output */
void (*proc_widget_hook)(struct snd_info_buffer *buffer,
struct hda_codec *codec, hda_nid_t nid);
/* jack detection */
struct snd_array jacktbl;
unsigned long jackpoll_interval; /* In jiffies. Zero means no poll, rely on unsol events */
struct delayed_work jackpoll_work;
#ifdef CONFIG_SND_HDA_INPUT_JACK
/* jack detection */
struct snd_array jacks;
#endif
int depop_delay; /* depop delay in ms, -1 for default delay time */
/* fix-up list */
int fixup_id;
const struct hda_fixup *fixup_list;
const char *fixup_name;
/* additional init verbs */
struct snd_array verbs;
};
#define dev_to_hda_codec(_dev) container_of(_dev, struct hda_codec, dev)
#define hda_codec_dev(_dev) (&(_dev)->dev)
extern struct bus_type snd_hda_bus_type;
/* direction */
enum {
HDA_INPUT, HDA_OUTPUT
};
/* snd_hda_codec_read/write optional flags */
#define HDA_RW_NO_RESPONSE_FALLBACK (1 << 0)
/*
* constructors
*/
int snd_hda_bus_new(struct snd_card *card, struct hda_bus **busp);
int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
struct hda_codec **codecp);
int snd_hda_codec_configure(struct hda_codec *codec);
int snd_hda_codec_update_widgets(struct hda_codec *codec);
/*
* low level functions
*/
unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
int flags,
unsigned int verb, unsigned int parm);
int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags,
unsigned int verb, unsigned int parm);
#define snd_hda_param_read(codec, nid, param) \
snd_hda_codec_read(codec, nid, 0, AC_VERB_PARAMETERS, param)
int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
hda_nid_t *start_id);
int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
hda_nid_t *conn_list, int max_conns);
static inline int
snd_hda_get_num_conns(struct hda_codec *codec, hda_nid_t nid)
{
return snd_hda_get_connections(codec, nid, NULL, 0);
}
int snd_hda_get_num_raw_conns(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_get_raw_connections(struct hda_codec *codec, hda_nid_t nid,
hda_nid_t *conn_list, int max_conns);
int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
const hda_nid_t **listp);
int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int nums,
const hda_nid_t *list);
int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
hda_nid_t nid, int recursive);
int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
u8 *dev_list, int max_devices);
int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
u32 *ratesp, u64 *formatsp, unsigned int *bpsp);
struct hda_verb {
hda_nid_t nid;
u32 verb;
u32 param;
};
void snd_hda_sequence_write(struct hda_codec *codec,
const struct hda_verb *seq);
/* unsolicited event */
int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex);
/* cached write */
int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
int flags, unsigned int verb, unsigned int parm);
void snd_hda_sequence_write_cache(struct hda_codec *codec,
const struct hda_verb *seq);
int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
int flags, unsigned int verb, unsigned int parm);
void snd_hda_codec_resume_cache(struct hda_codec *codec);
/* both for cmd & amp caches */
void snd_hda_codec_flush_cache(struct hda_codec *codec);
/* the struct for codec->pin_configs */
struct hda_pincfg {
hda_nid_t nid;
unsigned char ctrl; /* original pin control value */
unsigned char target; /* target pin control value */
unsigned int cfg; /* default configuration */
};
unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_codec_set_pincfg(struct hda_codec *codec, hda_nid_t nid,
unsigned int cfg);
int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
hda_nid_t nid, unsigned int cfg); /* for hwdep */
void snd_hda_shutup_pins(struct hda_codec *codec);
/* SPDIF controls */
struct hda_spdif_out {
hda_nid_t nid; /* Converter nid values relate to */
unsigned int status; /* IEC958 status bits */
unsigned short ctls; /* SPDIF control bits */
};
struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
hda_nid_t nid);
void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx);
void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid);
/*
* Mixer
*/
int snd_hda_build_controls(struct hda_bus *bus);
int snd_hda_codec_build_controls(struct hda_codec *codec);
/*
* PCM
*/
int snd_hda_build_pcms(struct hda_bus *bus);
int snd_hda_codec_build_pcms(struct hda_codec *codec);
int snd_hda_codec_prepare(struct hda_codec *codec,
struct hda_pcm_stream *hinfo,
unsigned int stream,
unsigned int format,
struct snd_pcm_substream *substream);
void snd_hda_codec_cleanup(struct hda_codec *codec,
struct hda_pcm_stream *hinfo,
struct snd_pcm_substream *substream);
void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
u32 stream_tag,
int channel_id, int format);
void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
int do_now);
#define snd_hda_codec_cleanup_stream(codec, nid) \
__snd_hda_codec_cleanup_stream(codec, nid, 0)
unsigned int snd_hda_calc_stream_format(struct hda_codec *codec,
unsigned int rate,
unsigned int channels,
unsigned int format,
unsigned int maxbps,
unsigned short spdif_ctls);
int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
unsigned int format);
extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[];
/*
* Misc
*/
void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
void snd_hda_bus_reboot_notify(struct hda_bus *bus);
void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
unsigned int power_state);
int snd_hda_lock_devices(struct hda_bus *bus);
void snd_hda_unlock_devices(struct hda_bus *bus);
void snd_hda_bus_reset(struct hda_bus *bus);
/*
* power management
*/
extern const struct dev_pm_ops hda_codec_driver_pm;
static inline
int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid)
{
#ifdef CONFIG_PM
if (codec->patch_ops.check_power_status)
return codec->patch_ops.check_power_status(codec, nid);
#endif
return 0;
}
/*
* get widget information
*/
const char *snd_hda_get_jack_connectivity(u32 cfg);
const char *snd_hda_get_jack_type(u32 cfg);
const char *snd_hda_get_jack_location(u32 cfg);
/*
* power saving
*/
#ifdef CONFIG_PM
void snd_hda_power_up(struct hda_codec *codec);
void snd_hda_power_down(struct hda_codec *codec);
void snd_hda_power_sync(struct hda_codec *codec);
void snd_hda_update_power_acct(struct hda_codec *codec);
#else
static inline void snd_hda_power_up(struct hda_codec *codec) {}
static inline void snd_hda_power_down(struct hda_codec *codec) {}
static inline void snd_hda_power_sync(struct hda_codec *codec) {}
#endif
#ifdef CONFIG_SND_HDA_PATCH_LOADER
/*
* patch firmware
*/
int snd_hda_load_patch(struct hda_bus *bus, size_t size, const void *buf);
#endif
#ifdef CONFIG_SND_HDA_DSP_LOADER
static inline int
snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
unsigned int size,
struct snd_dma_buffer *bufp)
{
return codec->bus->ops.load_dsp_prepare(codec->bus, format, size, bufp);
}
static inline void
snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start)
{
return codec->bus->ops.load_dsp_trigger(codec->bus, start);
}
static inline void
snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
struct snd_dma_buffer *dmab)
{
return codec->bus->ops.load_dsp_cleanup(codec->bus, dmab);
}
#else
static inline int
snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
unsigned int size,
struct snd_dma_buffer *bufp)
{
return -ENOSYS;
}
static inline void
snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start) {}
static inline void
snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
struct snd_dma_buffer *dmab) {}
#endif
#endif /* __SOUND_HDA_CODEC_H */
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