From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Henningsson Subject: Re: [PATCH RFC 4/7] ALSA: hda - Allow multiple callbacks for jack Date: Thu, 11 Sep 2014 17:01:01 +0200 Message-ID: <5411B92D.4070307@canonical.com> References: <1410445157-23198-1-git-send-email-tiwai@suse.de> <1410445157-23198-5-git-send-email-tiwai@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from youngberry.canonical.com (youngberry.canonical.com [91.189.89.112]) by alsa0.perex.cz (Postfix) with ESMTP id CEFDE265710 for ; Thu, 11 Sep 2014 17:01:01 +0200 (CEST) In-Reply-To: <1410445157-23198-5-git-send-email-tiwai@suse.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Takashi Iwai , alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org On 2014-09-11 16:19, Takashi Iwai wrote: > So far, hda_jack infrastructure allows only one callback per jack, and > this makes things slightly complicated when a driver wants to assign > multiple tasks to a jack, e.g. the standard auto-mute with a power > up/down sequence. This can be simplified if the hda_jack accepts > multiple callbacks. > > This patch is such an extension: the callback-specific part (the > function and private_data) is split to another struct from > hda_jack_tbl, and multiple such objects can be assigned to a single > hda_jack_tbl entry. > > The new struct hda_jack_callback is passed to each callback function > now, thus the patch became bigger than expected. But these changes > are mostly trivial. > > Signed-off-by: Takashi Iwai > --- > sound/pci/hda/hda_generic.c | 19 ++++++++++++------- > sound/pci/hda/hda_generic.h | 12 ++++++------ > sound/pci/hda/hda_jack.c | 43 +++++++++++++++++++++++++++++------------- > sound/pci/hda/hda_jack.h | 17 ++++++++++++----- > sound/pci/hda/patch_cirrus.c | 2 +- > sound/pci/hda/patch_conexant.c | 3 ++- > sound/pci/hda/patch_hdmi.c | 14 ++++++++++---- > sound/pci/hda/patch_realtek.c | 12 +++++++----- > sound/pci/hda/patch_sigmatel.c | 24 +++++++++++------------ > sound/pci/hda/patch_via.c | 11 +++++++---- > 10 files changed, 99 insertions(+), 58 deletions(-) > > diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c > index 4d605e4ac41c..32a85f9cac4b 100644 > --- a/sound/pci/hda/hda_generic.c > +++ b/sound/pci/hda/hda_generic.c > @@ -2032,7 +2032,8 @@ static int create_speaker_out_ctls(struct hda_codec *codec) > * independent HP controls > */ > > -static void call_hp_automute(struct hda_codec *codec, struct hda_jack_tbl *jack); > +static void call_hp_automute(struct hda_codec *codec, > + struct hda_jack_callback *jack); > static int indep_hp_info(struct snd_kcontrol *kcontrol, > struct snd_ctl_elem_info *uinfo) > { > @@ -3948,7 +3949,8 @@ static void call_update_outputs(struct hda_codec *codec) > } > > /* standard HP-automute helper */ > -void snd_hda_gen_hp_automute(struct hda_codec *codec, struct hda_jack_tbl *jack) > +void snd_hda_gen_hp_automute(struct hda_codec *codec, > + struct hda_jack_callback *jack) > { > struct hda_gen_spec *spec = codec->spec; > hda_nid_t *pins = spec->autocfg.hp_pins; > @@ -3968,7 +3970,8 @@ void snd_hda_gen_hp_automute(struct hda_codec *codec, struct hda_jack_tbl *jack) > EXPORT_SYMBOL_GPL(snd_hda_gen_hp_automute); > > /* standard line-out-automute helper */ > -void snd_hda_gen_line_automute(struct hda_codec *codec, struct hda_jack_tbl *jack) > +void snd_hda_gen_line_automute(struct hda_codec *codec, > + struct hda_jack_callback *jack) > { > struct hda_gen_spec *spec = codec->spec; > > @@ -3988,7 +3991,8 @@ void snd_hda_gen_line_automute(struct hda_codec *codec, struct hda_jack_tbl *jac > EXPORT_SYMBOL_GPL(snd_hda_gen_line_automute); > > /* standard mic auto-switch helper */ > -void snd_hda_gen_mic_autoswitch(struct hda_codec *codec, struct hda_jack_tbl *jack) > +void snd_hda_gen_mic_autoswitch(struct hda_codec *codec, > + struct hda_jack_callback *jack) > { > struct hda_gen_spec *spec = codec->spec; > int i; > @@ -4011,7 +4015,8 @@ void snd_hda_gen_mic_autoswitch(struct hda_codec *codec, struct hda_jack_tbl *ja > EXPORT_SYMBOL_GPL(snd_hda_gen_mic_autoswitch); > > /* call appropriate hooks */ > -static void call_hp_automute(struct hda_codec *codec, struct hda_jack_tbl *jack) > +static void call_hp_automute(struct hda_codec *codec, > + struct hda_jack_callback *jack) > { > struct hda_gen_spec *spec = codec->spec; > if (spec->hp_automute_hook) > @@ -4021,7 +4026,7 @@ static void call_hp_automute(struct hda_codec *codec, struct hda_jack_tbl *jack) > } > > static void call_line_automute(struct hda_codec *codec, > - struct hda_jack_tbl *jack) > + struct hda_jack_callback *jack) > { > struct hda_gen_spec *spec = codec->spec; > if (spec->line_automute_hook) > @@ -4031,7 +4036,7 @@ static void call_line_automute(struct hda_codec *codec, > } > > static void call_mic_autoswitch(struct hda_codec *codec, > - struct hda_jack_tbl *jack) > + struct hda_jack_callback *jack) > { > struct hda_gen_spec *spec = codec->spec; > if (spec->mic_autoswitch_hook) > diff --git a/sound/pci/hda/hda_generic.h b/sound/pci/hda/hda_generic.h > index 72f5624125fb..61dd5153f512 100644 > --- a/sound/pci/hda/hda_generic.h > +++ b/sound/pci/hda/hda_generic.h > @@ -284,11 +284,11 @@ struct hda_gen_spec { > > /* automute / autoswitch hooks */ > void (*hp_automute_hook)(struct hda_codec *codec, > - struct hda_jack_tbl *tbl); > + struct hda_jack_callback *cb); > void (*line_automute_hook)(struct hda_codec *codec, > - struct hda_jack_tbl *tbl); > + struct hda_jack_callback *cb); > void (*mic_autoswitch_hook)(struct hda_codec *codec, > - struct hda_jack_tbl *tbl); > + struct hda_jack_callback *cb); > }; > > int snd_hda_gen_spec_init(struct hda_gen_spec *spec); > @@ -320,11 +320,11 @@ int snd_hda_gen_build_pcms(struct hda_codec *codec); > > /* standard jack event callbacks */ > void snd_hda_gen_hp_automute(struct hda_codec *codec, > - struct hda_jack_tbl *jack); > + struct hda_jack_callback *jack); > void snd_hda_gen_line_automute(struct hda_codec *codec, > - struct hda_jack_tbl *jack); > + struct hda_jack_callback *jack); > void snd_hda_gen_mic_autoswitch(struct hda_codec *codec, > - struct hda_jack_tbl *jack); > + struct hda_jack_callback *jack); > void snd_hda_gen_update_outputs(struct hda_codec *codec); > > #ifdef CONFIG_PM > diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c > index 27fccd2c8d41..13a9e6796379 100644 > --- a/sound/pci/hda/hda_jack.c > +++ b/sound/pci/hda/hda_jack.c > @@ -117,8 +117,13 @@ void snd_hda_jack_tbl_clear(struct hda_codec *codec) > struct hda_jack_tbl *jack = codec->jacktbl.list; > int i; > for (i = 0; i < codec->jacktbl.used; i++, jack++) { > + struct hda_jack_callback *cb, *next; > if (jack->jack) > snd_device_free(codec->bus->card, jack->jack); > + for (cb = jack->callback; cb; cb = next) { > + next = cb->next; > + kfree(cb); > + } > } > } > #endif > @@ -215,28 +220,36 @@ EXPORT_SYMBOL_GPL(snd_hda_jack_detect_state); > /** > * snd_hda_jack_detect_enable - enable the jack-detection > */ > -struct hda_jack_tbl * > +struct hda_jack_callback * > snd_hda_jack_detect_enable_callback(struct hda_codec *codec, hda_nid_t nid, > - hda_jack_callback cb) > + hda_jack_callback_fn func) > { > - struct hda_jack_tbl *jack = snd_hda_jack_tbl_new(codec, nid); > + struct hda_jack_tbl *jack; > + struct hda_jack_callback *callback = NULL; > int err; > > + jack = snd_hda_jack_tbl_new(codec, nid); > if (!jack) > return ERR_PTR(-ENOMEM); > - if (jack->jack_detect) > - return jack; /* already registered */ This check is an optimisation (do not write unsol verbs to the codec more than once, even if many callbacks are added) and should not be removed. The "if (func) " part should just move above the check. > + if (func) { > + callback = kzalloc(sizeof(*callback), GFP_KERNEL); > + if (!callback) > + return ERR_PTR(-ENOMEM); > + callback->func = func; > + callback->tbl = jack; > + callback->next = jack->callback; > + jack->callback = callback; > + } > + > jack->jack_detect = 1; > - if (cb) > - jack->callback = cb; > if (codec->jackpoll_interval > 0) > - return jack; /* No unsol if we're polling instead */ > + return callback; /* No unsol if we're polling instead */ > err = snd_hda_codec_write_cache(codec, nid, 0, > AC_VERB_SET_UNSOLICITED_ENABLE, > AC_USRSP_EN | jack->tag); > if (err < 0) > return ERR_PTR(err); > - return jack; > + return callback; > } > EXPORT_SYMBOL_GPL(snd_hda_jack_detect_enable_callback); > > @@ -499,13 +512,17 @@ EXPORT_SYMBOL_GPL(snd_hda_jack_add_kctls); > static void call_jack_callback(struct hda_codec *codec, > struct hda_jack_tbl *jack) > { > - if (jack->callback) > - jack->callback(codec, jack); > + struct hda_jack_callback *cb; > + > + for (cb = jack->callback; cb; cb = cb->next) > + cb->func(codec, cb); > if (jack->gated_jack) { > struct hda_jack_tbl *gated = > snd_hda_jack_tbl_get(codec, jack->gated_jack); > - if (gated && gated->callback) > - gated->callback(codec, gated); > + if (gated) { > + for (cb = gated->callback; cb; cb = cb->next) > + cb->func(codec, cb); > + } > } > } > > diff --git a/sound/pci/hda/hda_jack.h b/sound/pci/hda/hda_jack.h > index 668669ce3e52..b41e0a3ea1fb 100644 > --- a/sound/pci/hda/hda_jack.h > +++ b/sound/pci/hda/hda_jack.h > @@ -14,14 +14,21 @@ > > struct auto_pin_cfg; > struct hda_jack_tbl; > +struct hda_jack_callback; > > -typedef void (*hda_jack_callback) (struct hda_codec *, struct hda_jack_tbl *); > +typedef void (*hda_jack_callback_fn) (struct hda_codec *, struct hda_jack_callback *); > + > +struct hda_jack_callback { > + struct hda_jack_tbl *tbl; > + hda_jack_callback_fn func; > + unsigned int private_data; /* arbitrary data */ > + struct hda_jack_callback *next; > +}; > > struct hda_jack_tbl { > hda_nid_t nid; > unsigned char tag; /* unsol event tag */ > - unsigned int private_data; /* arbitrary data */ > - hda_jack_callback callback; > + struct hda_jack_callback *callback; > /* jack-detection stuff */ > unsigned int pin_sense; /* cached pin-sense value */ > unsigned int jack_detect:1; /* capable of jack-detection? */ > @@ -47,9 +54,9 @@ void snd_hda_jack_tbl_clear(struct hda_codec *codec); > void snd_hda_jack_set_dirty_all(struct hda_codec *codec); > > int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid); > -struct hda_jack_tbl * > +struct hda_jack_callback * > snd_hda_jack_detect_enable_callback(struct hda_codec *codec, hda_nid_t nid, > - hda_jack_callback cb); > + hda_jack_callback_fn cb); > > int snd_hda_jack_set_gating_jack(struct hda_codec *codec, hda_nid_t gated_nid, > hda_nid_t gating_nid); > diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c > index 69b0ffc55a51..1589c9bcce3e 100644 > --- a/sound/pci/hda/patch_cirrus.c > +++ b/sound/pci/hda/patch_cirrus.c > @@ -982,7 +982,7 @@ static void cs4210_pinmux_init(struct hda_codec *codec) > } > > static void cs4210_spdif_automute(struct hda_codec *codec, > - struct hda_jack_tbl *tbl) > + struct hda_jack_callback *tbl) > { > struct cs_spec *spec = codec->spec; > bool spdif_present = false; > diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c > index e0c5bc1d671b..d5b0582daaf0 100644 > --- a/sound/pci/hda/patch_conexant.c > +++ b/sound/pci/hda/patch_conexant.c > @@ -393,7 +393,8 @@ static void olpc_xo_update_mic_pins(struct hda_codec *codec) > } > > /* mic_autoswitch hook */ > -static void olpc_xo_automic(struct hda_codec *codec, struct hda_jack_tbl *jack) > +static void olpc_xo_automic(struct hda_codec *codec, > + struct hda_jack_callback *jack) > { > struct conexant_spec *spec = codec->spec; > int saved_cached_write = codec->cached_write; > diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c > index 8f94527f1890..39862e98551c 100644 > --- a/sound/pci/hda/patch_hdmi.c > +++ b/sound/pci/hda/patch_hdmi.c > @@ -1163,17 +1163,23 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, > > static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll); > > -static void jack_callback(struct hda_codec *codec, struct hda_jack_tbl *jack) > +static void check_presence_and_report(struct hda_codec *codec, hda_nid_t nid) > { > struct hdmi_spec *spec = codec->spec; > - int pin_idx = pin_nid_to_pin_index(codec, jack->nid); > + int pin_idx = pin_nid_to_pin_index(codec, nid); > + > if (pin_idx < 0) > return; > - > if (hdmi_present_sense(get_pin(spec, pin_idx), 1)) > snd_hda_jack_report_sync(codec); > } > > +static void jack_callback(struct hda_codec *codec, > + struct hda_jack_callback *jack) > +{ > + check_presence_and_report(codec, jack->tbl->nid); > +} > + > static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res) > { > int tag = res >> AC_UNSOL_RES_TAG_SHIFT; > @@ -1190,7 +1196,7 @@ static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res) > codec->addr, jack->nid, dev_entry, !!(res & AC_UNSOL_RES_IA), > !!(res & AC_UNSOL_RES_PD), !!(res & AC_UNSOL_RES_ELDV)); > > - jack_callback(codec, jack); > + check_presence_and_report(codec, jack->nid); > } > > static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res) > diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c > index ac00420e59ff..a109fdb085f9 100644 > --- a/sound/pci/hda/patch_realtek.c > +++ b/sound/pci/hda/patch_realtek.c > @@ -264,7 +264,8 @@ static void alc_fix_pll_init(struct hda_codec *codec, hda_nid_t nid, > } > > /* update the master volume per volume-knob's unsol event */ > -static void alc_update_knob_master(struct hda_codec *codec, struct hda_jack_tbl *jack) > +static void alc_update_knob_master(struct hda_codec *codec, > + struct hda_jack_callback *jack) > { > unsigned int val; > struct snd_kcontrol *kctl; > @@ -276,7 +277,7 @@ static void alc_update_knob_master(struct hda_codec *codec, struct hda_jack_tbl > uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); > if (!uctl) > return; > - val = snd_hda_codec_read(codec, jack->nid, 0, > + val = snd_hda_codec_read(codec, jack->tbl->nid, 0, > AC_VERB_GET_VOLUME_KNOB_CONTROL, 0); > val &= HDA_AMP_VOLMASK; > uctl->value.integer.value[0] = val; > @@ -3272,7 +3273,7 @@ static void alc269_fixup_quanta_mute(struct hda_codec *codec, > } > > static void alc269_x101_hp_automute_hook(struct hda_codec *codec, > - struct hda_jack_tbl *jack) > + struct hda_jack_callback *jack) > { > struct alc_spec *spec = codec->spec; > int vref; > @@ -3926,7 +3927,8 @@ static void alc_update_headset_mode_hook(struct hda_codec *codec, > alc_update_headset_mode(codec); > } > > -static void alc_update_headset_jack_cb(struct hda_codec *codec, struct hda_jack_tbl *jack) > +static void alc_update_headset_jack_cb(struct hda_codec *codec, > + struct hda_jack_callback *jack) > { > struct alc_spec *spec = codec->spec; > spec->current_headset_type = ALC_HEADSET_TYPE_UNKNOWN; > @@ -4166,7 +4168,7 @@ static void alc269_fixup_limit_int_mic_boost(struct hda_codec *codec, > } > > static void alc283_hp_automute_hook(struct hda_codec *codec, > - struct hda_jack_tbl *jack) > + struct hda_jack_callback *jack) > { > struct alc_spec *spec = codec->spec; > int vref; > diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c > index 4b338beb9449..3193529607f2 100644 > --- a/sound/pci/hda/patch_sigmatel.c > +++ b/sound/pci/hda/patch_sigmatel.c > @@ -481,7 +481,7 @@ static void stac_toggle_power_map(struct hda_codec *codec, hda_nid_t nid, > > /* update power bit per jack plug/unplug */ > static void jack_update_power(struct hda_codec *codec, > - struct hda_jack_tbl *jack) > + struct hda_jack_callback *jack) > { > struct sigmatel_spec *spec = codec->spec; > int i; > @@ -489,9 +489,9 @@ static void jack_update_power(struct hda_codec *codec, > if (!spec->num_pwrs) > return; > > - if (jack && jack->nid) { > - stac_toggle_power_map(codec, jack->nid, > - snd_hda_jack_detect(codec, jack->nid), > + if (jack && jack->tbl->nid) { > + stac_toggle_power_map(codec, jack->tbl->nid, > + snd_hda_jack_detect(codec, jack->tbl->nid), > true); > return; > } > @@ -499,8 +499,7 @@ static void jack_update_power(struct hda_codec *codec, > /* update all jacks */ > for (i = 0; i < spec->num_pwrs; i++) { > hda_nid_t nid = spec->pwr_nids[i]; > - jack = snd_hda_jack_tbl_get(codec, nid); > - if (!jack) > + if (!snd_hda_jack_tbl_get(codec, nid)) > continue; > stac_toggle_power_map(codec, nid, > snd_hda_jack_detect(codec, nid), > @@ -512,27 +511,28 @@ static void jack_update_power(struct hda_codec *codec, > } > > static void stac_hp_automute(struct hda_codec *codec, > - struct hda_jack_tbl *jack) > + struct hda_jack_callback *jack) > { > snd_hda_gen_hp_automute(codec, jack); > jack_update_power(codec, jack); > } > > static void stac_line_automute(struct hda_codec *codec, > - struct hda_jack_tbl *jack) > + struct hda_jack_callback *jack) > { > snd_hda_gen_line_automute(codec, jack); > jack_update_power(codec, jack); > } > > static void stac_mic_autoswitch(struct hda_codec *codec, > - struct hda_jack_tbl *jack) > + struct hda_jack_callback *jack) > { > snd_hda_gen_mic_autoswitch(codec, jack); > jack_update_power(codec, jack); > } > > -static void stac_vref_event(struct hda_codec *codec, struct hda_jack_tbl *event) > +static void stac_vref_event(struct hda_codec *codec, > + struct hda_jack_callback *event) > { > unsigned int data; > > @@ -3011,7 +3011,7 @@ static void stac92hd71bxx_fixup_hp_m4(struct hda_codec *codec, > const struct hda_fixup *fix, int action) > { > struct sigmatel_spec *spec = codec->spec; > - struct hda_jack_tbl *jack; > + struct hda_jack_callback *jack; > > if (action != HDA_FIXUP_ACT_PRE_PROBE) > return; > @@ -4033,7 +4033,7 @@ static void stac9205_fixup_dell_m43(struct hda_codec *codec, > const struct hda_fixup *fix, int action) > { > struct sigmatel_spec *spec = codec->spec; > - struct hda_jack_tbl *jack; > + struct hda_jack_callback *jack; > > if (action == HDA_FIXUP_ACT_PRE_PROBE) { > snd_hda_apply_pincfgs(codec, dell_9205_m43_pin_configs); > diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c > index 2a8be5a5da15..8d234ab9f06b 100644 > --- a/sound/pci/hda/patch_via.c > +++ b/sound/pci/hda/patch_via.c > @@ -118,7 +118,7 @@ static void via_playback_pcm_hook(struct hda_pcm_stream *hinfo, > struct hda_codec *codec, > struct snd_pcm_substream *substream, > int action); > -static void via_hp_automute(struct hda_codec *codec, struct hda_jack_tbl *tbl); > +static void via_hp_automute(struct hda_codec *codec, struct hda_jack_callback *tbl); > > static struct via_spec *via_new_spec(struct hda_codec *codec) > { > @@ -575,19 +575,22 @@ static const struct snd_kcontrol_new vt1708_jack_detect_ctl[] = { > {} /* terminator */ > }; > > -static void via_hp_automute(struct hda_codec *codec, struct hda_jack_tbl *tbl) > +static void via_hp_automute(struct hda_codec *codec, > + struct hda_jack_callback *tbl) > { > set_widgets_power_state(codec); > snd_hda_gen_hp_automute(codec, tbl); > } > > -static void via_line_automute(struct hda_codec *codec, struct hda_jack_tbl *tbl) > +static void via_line_automute(struct hda_codec *codec, > + struct hda_jack_callback *tbl) > { > set_widgets_power_state(codec); > snd_hda_gen_line_automute(codec, tbl); > } > > -static void via_jack_powerstate_event(struct hda_codec *codec, struct hda_jack_tbl *tbl) > +static void via_jack_powerstate_event(struct hda_codec *codec, > + struct hda_jack_callback *tbl) > { > set_widgets_power_state(codec); > } > -- David Henningsson, Canonical Ltd. https://launchpad.net/~diwic