diff options
Diffstat (limited to 'sound/pci/hda/hda_codec.c')
-rw-r--r-- | sound/pci/hda/hda_codec.c | 234 |
1 files changed, 151 insertions, 83 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 0c4a337c9fc0..b4d1e658c556 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -703,20 +703,10 @@ get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid) /* * PCM device */ -static void release_pcm(struct kref *kref) -{ - struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref); - - if (pcm->pcm) - snd_device_free(pcm->codec->card, pcm->pcm); - clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits); - kfree(pcm->name); - kfree(pcm); -} - void snd_hda_codec_pcm_put(struct hda_pcm *pcm) { - kref_put(&pcm->kref, release_pcm); + if (refcount_dec_and_test(&pcm->codec->pcm_ref)) + wake_up(&pcm->codec->remove_sleep); } EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put); @@ -731,7 +721,6 @@ struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec, return NULL; pcm->codec = codec; - kref_init(&pcm->kref); va_start(args, fmt); pcm->name = kvasprintf(GFP_KERNEL, fmt, args); va_end(args); @@ -741,6 +730,7 @@ struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec, } list_add_tail(&pcm->list, &codec->pcm_list_head); + refcount_inc(&codec->pcm_ref); return pcm; } EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new); @@ -748,27 +738,48 @@ EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new); /* * codec destructor */ +void snd_hda_codec_disconnect_pcms(struct hda_codec *codec) +{ + struct hda_pcm *pcm; + + list_for_each_entry(pcm, &codec->pcm_list_head, list) { + if (pcm->disconnected) + continue; + if (pcm->pcm) + snd_device_disconnect(codec->card, pcm->pcm); + snd_hda_codec_pcm_put(pcm); + pcm->disconnected = 1; + } +} + static void codec_release_pcms(struct hda_codec *codec) { struct hda_pcm *pcm, *n; list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) { - list_del_init(&pcm->list); + list_del(&pcm->list); if (pcm->pcm) - snd_device_disconnect(codec->card, pcm->pcm); - snd_hda_codec_pcm_put(pcm); + snd_device_free(pcm->codec->card, pcm->pcm); + clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits); + kfree(pcm->name); + kfree(pcm); } } +/** + * snd_hda_codec_cleanup_for_unbind - Prepare codec for removal + * @codec: codec device to cleanup + */ void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec) { - if (codec->registered) { + if (codec->core.registered) { /* pm_runtime_put() is called in snd_hdac_device_exit() */ pm_runtime_get_noresume(hda_codec_dev(codec)); pm_runtime_disable(hda_codec_dev(codec)); - codec->registered = 0; + codec->core.registered = 0; } + snd_hda_codec_disconnect_pcms(codec); cancel_delayed_work_sync(&codec->jackpoll_work); if (!codec->in_freeing) snd_hda_ctls_clear(codec); @@ -792,6 +803,7 @@ void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec) remove_conn_list(codec); snd_hdac_regmap_exit(&codec->core); codec->configured = 0; + refcount_set(&codec->pcm_ref, 1); /* reset refcount */ } EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup_for_unbind); @@ -805,19 +817,25 @@ void snd_hda_codec_display_power(struct hda_codec *codec, bool enable) snd_hdac_display_power(&codec->bus->core, codec->addr, enable); } -/* also called from hda_bind.c */ +/** + * snd_hda_codec_register - Finalize codec initialization + * @codec: codec device to register + * + * Also called from hda_bind.c + */ void snd_hda_codec_register(struct hda_codec *codec) { - if (codec->registered) + if (codec->core.registered) return; if (device_is_registered(hda_codec_dev(codec))) { snd_hda_codec_display_power(codec, true); pm_runtime_enable(hda_codec_dev(codec)); /* it was powered up in snd_hda_codec_new(), now all done */ snd_hda_power_down(codec); - codec->registered = 1; + codec->core.registered = 1; } } +EXPORT_SYMBOL_GPL(snd_hda_codec_register); static int snd_hda_codec_dev_register(struct snd_device *device) { @@ -825,10 +843,12 @@ static int snd_hda_codec_dev_register(struct snd_device *device) return 0; } -static int snd_hda_codec_dev_free(struct snd_device *device) +/** + * snd_hda_codec_unregister - Unregister specified codec device + * @codec: codec device to unregister + */ +void snd_hda_codec_unregister(struct hda_codec *codec) { - struct hda_codec *codec = device->device_data; - codec->in_freeing = 1; /* * snd_hda_codec_device_new() is used by legacy HDA and ASoC driver. @@ -845,7 +865,12 @@ static int snd_hda_codec_dev_free(struct snd_device *device) */ if (codec->core.type == HDA_DEV_LEGACY) put_device(hda_codec_dev(codec)); +} +EXPORT_SYMBOL_GPL(snd_hda_codec_unregister); +static int snd_hda_codec_dev_free(struct snd_device *device) +{ + snd_hda_codec_unregister(device->device_data); return 0; } @@ -858,47 +883,73 @@ static void snd_hda_codec_dev_release(struct device *dev) snd_hda_sysfs_clear(codec); kfree(codec->modelname); kfree(codec->wcaps); - - /* - * In the case of ASoC HD-audio, hda_codec is device managed. - * It will be freed when the ASoC device is removed. - */ - if (codec->core.type == HDA_DEV_LEGACY) - kfree(codec); + kfree(codec); } #define DEV_NAME_LEN 31 -static int snd_hda_codec_device_init(struct hda_bus *bus, struct snd_card *card, - unsigned int codec_addr, struct hda_codec **codecp) +/** + * snd_hda_codec_device_init - allocate HDA codec device + * @bus: codec's parent bus + * @codec_addr: the codec address on the parent bus + * @fmt: format string for the device's name + * + * Returns newly allocated codec device or ERR_PTR() on failure. + */ +struct hda_codec * +snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr, + const char *fmt, ...) { + va_list vargs; char name[DEV_NAME_LEN]; struct hda_codec *codec; int err; - dev_dbg(card->dev, "%s: entry\n", __func__); - if (snd_BUG_ON(!bus)) - return -EINVAL; + return ERR_PTR(-EINVAL); if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS)) - return -EINVAL; + return ERR_PTR(-EINVAL); codec = kzalloc(sizeof(*codec), GFP_KERNEL); if (!codec) - return -ENOMEM; + return ERR_PTR(-ENOMEM); + + va_start(vargs, fmt); + vsprintf(name, fmt, vargs); + va_end(vargs); - sprintf(name, "hdaudioC%dD%d", card->number, codec_addr); err = snd_hdac_device_init(&codec->core, &bus->core, name, codec_addr); if (err < 0) { kfree(codec); - return err; + return ERR_PTR(err); } + codec->bus = bus; + codec->depop_delay = -1; + codec->fixup_id = HDA_FIXUP_ID_NOT_SET; + codec->core.dev.release = snd_hda_codec_dev_release; + codec->core.exec_verb = codec_exec_verb; codec->core.type = HDA_DEV_LEGACY; - *codecp = codec; - return err; + mutex_init(&codec->spdif_mutex); + mutex_init(&codec->control_mutex); + snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32); + snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32); + snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16); + snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16); + snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8); + snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16); + snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16); + snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8); + INIT_LIST_HEAD(&codec->conn_list); + INIT_LIST_HEAD(&codec->pcm_list_head); + INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work); + refcount_set(&codec->pcm_ref, 1); + init_waitqueue_head(&codec->remove_sleep); + + return codec; } +EXPORT_SYMBOL_GPL(snd_hda_codec_device_init); /** * snd_hda_codec_new - create a HDA codec @@ -912,18 +963,26 @@ static int snd_hda_codec_device_init(struct hda_bus *bus, struct snd_card *card, int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card, unsigned int codec_addr, struct hda_codec **codecp) { + struct hda_codec *codec; int ret; - ret = snd_hda_codec_device_init(bus, card, codec_addr, codecp); - if (ret < 0) - return ret; + codec = snd_hda_codec_device_init(bus, codec_addr, "hdaudioC%dD%d", + card->number, codec_addr); + if (IS_ERR(codec)) + return PTR_ERR(codec); + *codecp = codec; + + ret = snd_hda_codec_device_new(bus, card, codec_addr, *codecp, true); + if (ret) + put_device(hda_codec_dev(*codecp)); - return snd_hda_codec_device_new(bus, card, codec_addr, *codecp); + return ret; } EXPORT_SYMBOL_GPL(snd_hda_codec_new); int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card, - unsigned int codec_addr, struct hda_codec *codec) + unsigned int codec_addr, struct hda_codec *codec, + bool snddev_managed) { char component[31]; hda_nid_t fg; @@ -940,28 +999,8 @@ int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card, if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS)) return -EINVAL; - codec->core.dev.release = snd_hda_codec_dev_release; - codec->core.exec_verb = codec_exec_verb; - - codec->bus = bus; codec->card = card; codec->addr = codec_addr; - mutex_init(&codec->spdif_mutex); - mutex_init(&codec->control_mutex); - snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32); - snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32); - snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16); - snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16); - snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8); - snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16); - snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16); - snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8); - INIT_LIST_HEAD(&codec->conn_list); - INIT_LIST_HEAD(&codec->pcm_list_head); - - INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work); - codec->depop_delay = -1; - codec->fixup_id = HDA_FIXUP_ID_NOT_SET; #ifdef CONFIG_PM codec->power_jiffies = jiffies; @@ -971,19 +1010,17 @@ int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card, if (codec->bus->modelname) { codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL); - if (!codec->modelname) { - err = -ENOMEM; - goto error; - } + if (!codec->modelname) + return -ENOMEM; } fg = codec->core.afg ? codec->core.afg : codec->core.mfg; err = read_widget_caps(codec, fg); if (err < 0) - goto error; + return err; err = read_pin_defaults(codec); if (err < 0) - goto error; + return err; /* power-up all before initialization */ hda_set_power_state(codec, AC_PWRST_D0); @@ -997,18 +1034,23 @@ int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card, codec->core.subsystem_id, codec->core.revision_id); snd_component_add(card, component); - err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops); - if (err < 0) - goto error; + if (snddev_managed) { + /* ASoC features component management instead */ + err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops); + if (err < 0) + return err; + } +#ifdef CONFIG_PM /* PM runtime needs to be enabled later after binding codec */ - pm_runtime_forbid(&codec->core.dev); + if (codec->core.dev.power.runtime_auto) + pm_runtime_forbid(&codec->core.dev); + else + /* Keep the usage_count consistent across subsequent probing */ + pm_runtime_get_noresume(&codec->core.dev); +#endif return 0; - - error: - put_device(hda_codec_dev(codec)); - return err; } EXPORT_SYMBOL_GPL(snd_hda_codec_device_new); @@ -1727,8 +1769,11 @@ void snd_hda_ctls_clear(struct hda_codec *codec) { int i; struct hda_nid_item *items = codec->mixers.list; + + down_write(&codec->card->controls_rwsem); for (i = 0; i < codec->mixers.used; i++) snd_ctl_remove(codec->card, items[i].kctl); + up_write(&codec->card->controls_rwsem); snd_array_free(&codec->mixers); snd_array_free(&codec->nids); } @@ -2889,12 +2934,18 @@ static int hda_codec_runtime_suspend(struct device *dev) return 0; cancel_delayed_work_sync(&codec->jackpoll_work); + state = hda_call_codec_suspend(codec); if (codec->link_down_at_suspend || (codec_has_clkstop(codec) && codec_has_epss(codec) && (state & AC_PWRST_CLK_STOP_OK))) snd_hdac_codec_link_down(&codec->core); snd_hda_codec_display_power(codec, false); + + if (codec->bus->jackpoll_in_suspend && + (dev->power.power_state.event != PM_EVENT_SUSPEND)) + schedule_delayed_work(&codec->jackpoll_work, + codec->jackpoll_interval); return 0; } @@ -2918,6 +2969,9 @@ static int hda_codec_runtime_resume(struct device *dev) #ifdef CONFIG_PM_SLEEP static int hda_codec_pm_prepare(struct device *dev) { + struct hda_codec *codec = dev_to_hda_codec(dev); + + cancel_delayed_work_sync(&codec->jackpoll_work); dev->power.power_state = PMSG_SUSPEND; return pm_runtime_suspended(dev); } @@ -2949,6 +3003,9 @@ static int hda_codec_pm_resume(struct device *dev) static int hda_codec_pm_freeze(struct device *dev) { + struct hda_codec *codec = dev_to_hda_codec(dev); + + cancel_delayed_work_sync(&codec->jackpoll_work); dev->power.power_state = PMSG_FREEZE; return pm_runtime_force_suspend(dev); } @@ -2987,6 +3044,11 @@ void snd_hda_codec_shutdown(struct hda_codec *codec) { struct hda_pcm *cpcm; + /* Skip the shutdown if codec is not registered */ + if (!codec->core.registered) + return; + + cancel_delayed_work_sync(&codec->jackpoll_work); list_for_each_entry(cpcm, &codec->pcm_list_head, list) snd_pcm_suspend_all(cpcm->pcm); @@ -3354,7 +3416,12 @@ int snd_hda_add_new_ctls(struct hda_codec *codec, EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls); #ifdef CONFIG_PM -static void codec_set_power_save(struct hda_codec *codec, int delay) +/** + * snd_hda_codec_set_power_save - Configure codec's runtime PM + * @codec: codec device to configure + * @delay: autosuspend delay + */ +void snd_hda_codec_set_power_save(struct hda_codec *codec, int delay) { struct device *dev = hda_codec_dev(codec); @@ -3372,6 +3439,7 @@ static void codec_set_power_save(struct hda_codec *codec, int delay) pm_runtime_forbid(dev); } } +EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_save); /** * snd_hda_set_power_save - reprogram autosuspend for the given delay @@ -3385,7 +3453,7 @@ void snd_hda_set_power_save(struct hda_bus *bus, int delay) struct hda_codec *c; list_for_each_codec(c, bus) - codec_set_power_save(c, delay); + snd_hda_codec_set_power_save(c, delay); } EXPORT_SYMBOL_GPL(snd_hda_set_power_save); |