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linux/sound/pci/hda/hda_local.h
Takashi Iwai cb53c626e1 [ALSA] hda-intel - Add POWER_SAVE option 
Added CONFIG_SND_HDA_POWER_SAVE kconfig.  It's an experimental option
to achieve an aggressive power-saving.  With this option, the driver
will turn on/off the power of each codec and controller chip dynamically
on demand.
The patch introduces a new module option 'power_save'.  It specifies
the second of time-out for automatic power-down.  As default, it's
10 seconds.  Setting 0 means to suppress the power-saving feature.
The codec may have analog-input loopbacks, which are usually represented
by mixer elements such as 'Mic Playback Switch' or 'CD Playback Switch'.
When these are on, we cannot turn off the mixer and the codec chip has
to be kept on.  For bookkeeping these states, a new codec-callback is
introduced.
For the bus-controller side, a new callback pm_notify is introduced,
which can be used to turn on/off the contoller appropriately.
Note that this power-saving might cause slight click-noise at
power-on/off.  Also, it might take some time to wake up the codec, and
might even drop some tones at the very beginning.  This seems to be the
side-effect of turning off the controller chip.
This turn-off of the controller can be disabled by undefining
HDA_POWER_SAVE_RESET_CONTOLLER in hda_intel.c.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16 15:58:46 +02:00

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/*
* Universal Interface for Intel High Definition Audio Codec
*
* Local helper functions
*
* 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_LOCAL_H
#define __SOUND_HDA_LOCAL_H
/*
* for mixer controls
*/
#define HDA_COMPOSE_AMP_VAL(nid,chs,idx,dir) \
((nid) | ((chs)<<16) | ((dir)<<18) | ((idx)<<19))
/* mono volume with index (index=0,1,...) (channel=1,2) */
#define HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \
.info = snd_hda_mixer_amp_volume_info, \
.get = snd_hda_mixer_amp_volume_get, \
.put = snd_hda_mixer_amp_volume_put, \
.tlv = { .c = snd_hda_mixer_amp_tlv }, \
.private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
/* stereo volume with index */
#define HDA_CODEC_VOLUME_IDX(xname, xcidx, nid, xindex, direction) \
HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, 3, xindex, direction)
/* mono volume */
#define HDA_CODEC_VOLUME_MONO(xname, nid, channel, xindex, direction) \
HDA_CODEC_VOLUME_MONO_IDX(xname, 0, nid, channel, xindex, direction)
/* stereo volume */
#define HDA_CODEC_VOLUME(xname, nid, xindex, direction) \
HDA_CODEC_VOLUME_MONO(xname, nid, 3, xindex, direction)
/* mono mute switch with index (index=0,1,...) (channel=1,2) */
#define HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
.info = snd_hda_mixer_amp_switch_info, \
.get = snd_hda_mixer_amp_switch_get, \
.put = snd_hda_mixer_amp_switch_put, \
.private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
/* stereo mute switch with index */
#define HDA_CODEC_MUTE_IDX(xname, xcidx, nid, xindex, direction) \
HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, 3, xindex, direction)
/* mono mute switch */
#define HDA_CODEC_MUTE_MONO(xname, nid, channel, xindex, direction) \
HDA_CODEC_MUTE_MONO_IDX(xname, 0, nid, channel, xindex, direction)
/* stereo mute switch */
#define HDA_CODEC_MUTE(xname, nid, xindex, direction) \
HDA_CODEC_MUTE_MONO(xname, nid, 3, xindex, direction)
int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo);
int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
unsigned int size, unsigned int __user *tlv);
int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo);
int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
/* lowlevel accessor with caching; use carefully */
int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
int direction, int index);
int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
int direction, int idx, int mask, int val);
int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
int dir, int idx, int mask, int val);
#ifdef SND_HDA_NEEDS_RESUME
void snd_hda_codec_resume_amp(struct hda_codec *codec);
#endif
/* amp value bits */
#define HDA_AMP_MUTE 0x80
#define HDA_AMP_UNMUTE 0x00
#define HDA_AMP_VOLMASK 0x7f
/* mono switch binding multiple inputs */
#define HDA_BIND_MUTE_MONO(xname, nid, channel, indices, direction) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0, \
.info = snd_hda_mixer_amp_switch_info, \
.get = snd_hda_mixer_bind_switch_get, \
.put = snd_hda_mixer_bind_switch_put, \
.private_value = HDA_COMPOSE_AMP_VAL(nid, channel, indices, direction) }
/* stereo switch binding multiple inputs */
#define HDA_BIND_MUTE(xname,nid,indices,dir) \
HDA_BIND_MUTE_MONO(xname,nid,3,indices,dir)
int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
/* more generic bound controls */
struct hda_ctl_ops {
snd_kcontrol_info_t *info;
snd_kcontrol_get_t *get;
snd_kcontrol_put_t *put;
snd_kcontrol_tlv_rw_t *tlv;
};
extern struct hda_ctl_ops snd_hda_bind_vol; /* for bind-volume with TLV */
extern struct hda_ctl_ops snd_hda_bind_sw; /* for bind-switch */
struct hda_bind_ctls {
struct hda_ctl_ops *ops;
long values[];
};
int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo);
int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
unsigned int size, unsigned int __user *tlv);
#define HDA_BIND_VOL(xname, bindrec) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
.name = xname, \
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |\
SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK,\
.info = snd_hda_mixer_bind_ctls_info,\
.get = snd_hda_mixer_bind_ctls_get,\
.put = snd_hda_mixer_bind_ctls_put,\
.tlv = { .c = snd_hda_mixer_bind_tlv },\
.private_value = (long) (bindrec) }
#define HDA_BIND_SW(xname, bindrec) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
.name = xname, \
.info = snd_hda_mixer_bind_ctls_info,\
.get = snd_hda_mixer_bind_ctls_get,\
.put = snd_hda_mixer_bind_ctls_put,\
.private_value = (long) (bindrec) }
/*
* SPDIF I/O
*/
int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid);
/*
* input MUX helper
*/
#define HDA_MAX_NUM_INPUTS 16
struct hda_input_mux_item {
const char *label;
unsigned int index;
};
struct hda_input_mux {
unsigned int num_items;
struct hda_input_mux_item items[HDA_MAX_NUM_INPUTS];
};
int snd_hda_input_mux_info(const struct hda_input_mux *imux,
struct snd_ctl_elem_info *uinfo);
int snd_hda_input_mux_put(struct hda_codec *codec,
const struct hda_input_mux *imux,
struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
unsigned int *cur_val);
/*
* Channel mode helper
*/
struct hda_channel_mode {
int channels;
const struct hda_verb *sequence;
};
int snd_hda_ch_mode_info(struct hda_codec *codec,
struct snd_ctl_elem_info *uinfo,
const struct hda_channel_mode *chmode,
int num_chmodes);
int snd_hda_ch_mode_get(struct hda_codec *codec,
struct snd_ctl_elem_value *ucontrol,
const struct hda_channel_mode *chmode,
int num_chmodes,
int max_channels);
int snd_hda_ch_mode_put(struct hda_codec *codec,
struct snd_ctl_elem_value *ucontrol,
const struct hda_channel_mode *chmode,
int num_chmodes,
int *max_channelsp);
/*
* Multi-channel / digital-out PCM helper
*/
enum { HDA_FRONT, HDA_REAR, HDA_CLFE, HDA_SIDE }; /* index for dac_nidx */
enum { HDA_DIG_NONE, HDA_DIG_EXCLUSIVE, HDA_DIG_ANALOG_DUP }; /* dig_out_used */
struct hda_multi_out {
int num_dacs; /* # of DACs, must be more than 1 */
hda_nid_t *dac_nids; /* DAC list */
hda_nid_t hp_nid; /* optional DAC for HP, 0 when not exists */
hda_nid_t extra_out_nid[3]; /* optional DACs, 0 when not exists */
hda_nid_t dig_out_nid; /* digital out audio widget */
int max_channels; /* currently supported analog channels */
int dig_out_used; /* current usage of digital out (HDA_DIG_XXX) */
};
int snd_hda_multi_out_dig_open(struct hda_codec *codec,
struct hda_multi_out *mout);
int snd_hda_multi_out_dig_close(struct hda_codec *codec,
struct hda_multi_out *mout);
int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
struct hda_multi_out *mout,
unsigned int stream_tag,
unsigned int format,
struct snd_pcm_substream *substream);
int snd_hda_multi_out_analog_open(struct hda_codec *codec,
struct hda_multi_out *mout,
struct snd_pcm_substream *substream);
int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
struct hda_multi_out *mout,
unsigned int stream_tag,
unsigned int format,
struct snd_pcm_substream *substream);
int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
struct hda_multi_out *mout);
/*
* generic codec parser
*/
int snd_hda_parse_generic_codec(struct hda_codec *codec);
/*
* generic proc interface
*/
#ifdef CONFIG_PROC_FS
int snd_hda_codec_proc_new(struct hda_codec *codec);
#else
static inline int snd_hda_codec_proc_new(struct hda_codec *codec) { return 0; }
#endif
/*
* Misc
*/
int snd_hda_check_board_config(struct hda_codec *codec, int num_configs,
const char **modelnames,
const struct snd_pci_quirk *pci_list);
int snd_hda_add_new_ctls(struct hda_codec *codec,
struct snd_kcontrol_new *knew);
/*
* 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;
struct hda_bus *bus;
};
/*
* Helper for automatic ping configuration
*/
enum {
AUTO_PIN_MIC,
AUTO_PIN_FRONT_MIC,
AUTO_PIN_LINE,
AUTO_PIN_FRONT_LINE,
AUTO_PIN_CD,
AUTO_PIN_AUX,
AUTO_PIN_LAST
};
enum {
AUTO_PIN_LINE_OUT,
AUTO_PIN_SPEAKER_OUT,
AUTO_PIN_HP_OUT
};
extern const char *auto_pin_cfg_labels[AUTO_PIN_LAST];
struct auto_pin_cfg {
int line_outs;
hda_nid_t line_out_pins[5]; /* sorted in the order of
* Front/Surr/CLFE/Side
*/
int speaker_outs;
hda_nid_t speaker_pins[5];
int hp_outs;
int line_out_type; /* AUTO_PIN_XXX_OUT */
hda_nid_t hp_pins[5];
hda_nid_t input_pins[AUTO_PIN_LAST];
hda_nid_t dig_out_pin;
hda_nid_t dig_in_pin;
};
#define get_defcfg_connect(cfg) \
((cfg & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT)
#define get_defcfg_association(cfg) \
((cfg & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT)
#define get_defcfg_location(cfg) \
((cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT)
#define get_defcfg_sequence(cfg) \
(cfg & AC_DEFCFG_SEQUENCE)
#define get_defcfg_device(cfg) \
((cfg & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT)
int snd_hda_parse_pin_def_config(struct hda_codec *codec,
struct auto_pin_cfg *cfg,
hda_nid_t *ignore_nids);
/* amp values */
#define AMP_IN_MUTE(idx) (0x7080 | ((idx)<<8))
#define AMP_IN_UNMUTE(idx) (0x7000 | ((idx)<<8))
#define AMP_OUT_MUTE 0xb080
#define AMP_OUT_UNMUTE 0xb000
#define AMP_OUT_ZERO 0xb000
/* pinctl values */
#define PIN_IN 0x20
#define PIN_VREF80 0x24
#define PIN_VREF50 0x21
#define PIN_OUT 0x40
#define PIN_HP 0xc0
#define PIN_HP_AMP 0x80
/*
* get widget capabilities
*/
static inline u32 get_wcaps(struct hda_codec *codec, hda_nid_t nid)
{
if (nid < codec->start_nid ||
nid >= codec->start_nid + codec->num_nodes)
return snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
return codec->wcaps[nid - codec->start_nid];
}
int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
unsigned int caps);
/*
* hwdep interface
*/
int snd_hda_create_hwdep(struct hda_codec *codec);
/*
* power-management
*/
#ifdef CONFIG_SND_HDA_POWER_SAVE
void snd_hda_schedule_power_save(struct hda_codec *codec);
struct hda_amp_list {
hda_nid_t nid;
unsigned char dir;
unsigned char idx;
};
struct hda_loopback_check {
struct hda_amp_list *amplist;
int power_on;
};
int snd_hda_check_amp_list_power(struct hda_codec *codec,
struct hda_loopback_check *check,
hda_nid_t nid);
#endif /* CONFIG_SND_HDA_POWER_SAVE */
#endif /* __SOUND_HDA_LOCAL_H */
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