3  * HD-audio codec driver binding
19  * find a matching codec id
23 	struct hda_codec *codec = container_of(dev, struct hda_codec, core);  in hda_codec_match()  local
28 	u32 id = codec->probe_id ? codec->probe_id : codec->core.vendor_id;  in hda_codec_match()
29 	u32 rev_id = codec->core.revision_id;  in hda_codec_match()
34 			codec->preset = list;  in hda_codec_match()
44 	struct hda_codec *codec = container_of(dev, struct hda_codec, core);  in hda_codec_unsol_event()  local
45 	struct hda_codec_driver *driver = hda_codec_to_driver(codec);  in hda_codec_unsol_event()
48 	if (codec->card->shutdown || codec->bus->shutdown)  in hda_codec_unsol_event()
52 	if (codec->core.dev.power.power_state.event != PM_EVENT_ON)  in hda_codec_unsol_event()
56 		driver->ops->unsol_event(codec, ev);  in hda_codec_unsol_event()
60  * snd_hda_codec_set_name - set the codec name
61  * @codec: the HDA codec
64 int snd_hda_codec_set_name(struct hda_codec *codec, const char *name)  in snd_hda_codec_set_name()  argument
70 	err = snd_hdac_device_set_chip_name(&codec->core, name);  in snd_hda_codec_set_name()
75 	if (!*codec->card->mixername ||  in snd_hda_codec_set_name()
76 	    codec->bus->mixer_assigned >= codec->core.addr) {  in snd_hda_codec_set_name()
77 		snprintf(codec->card->mixername,  in snd_hda_codec_set_name()
78 			 sizeof(codec->card->mixername), "%s %s",  in snd_hda_codec_set_name()
79 			 codec->core.vendor_name, codec->core.chip_name);  in snd_hda_codec_set_name()
80 		codec->bus->mixer_assigned = codec->core.addr;  in snd_hda_codec_set_name()
89 	struct hda_codec *codec = dev_to_hda_codec(dev);  in hda_codec_driver_probe()  local
91 	struct hda_codec_driver *driver = hda_codec_to_driver(codec);  in hda_codec_driver_probe()
94 	if (codec->bus->core.ext_ops) {  in hda_codec_driver_probe()
95 		if (WARN_ON(!codec->bus->core.ext_ops->hdev_attach))  in hda_codec_driver_probe()
97 		return codec->bus->core.ext_ops->hdev_attach(&codec->core);  in hda_codec_driver_probe()
100 	if (WARN_ON(!codec->preset))  in hda_codec_driver_probe()
103 	err = snd_hda_codec_set_name(codec, codec->preset->name);  in hda_codec_driver_probe()
106 	err = snd_hdac_regmap_init(&codec->core);  in hda_codec_driver_probe()
120 	err = driver->ops->probe(codec, codec->preset);  in hda_codec_driver_probe()
123 	err = snd_hda_codec_build_pcms(codec);  in hda_codec_driver_probe()
126 	err = snd_hda_codec_build_controls(codec);  in hda_codec_driver_probe()
130 	if (!codec->bus->bus_probing && codec->card->registered) {  in hda_codec_driver_probe()
131 		err = snd_card_register(codec->card);  in hda_codec_driver_probe()
134 		snd_hda_codec_register(codec);  in hda_codec_driver_probe()
137 	codec->core.lazy_cache = true;  in hda_codec_driver_probe()
142 		driver->ops->remove(codec);  in hda_codec_driver_probe()
147 	snd_hda_codec_cleanup_for_unbind(codec);  in hda_codec_driver_probe()
148 	codec->preset = NULL;  in hda_codec_driver_probe()
154 	struct hda_codec *codec = dev_to_hda_codec(dev);  in hda_codec_driver_remove()  local
155 	struct hda_codec_driver *driver = hda_codec_to_driver(codec);  in hda_codec_driver_remove()
157 	if (codec->bus->core.ext_ops) {  in hda_codec_driver_remove()
158 		if (WARN_ON(!codec->bus->core.ext_ops->hdev_detach))  in hda_codec_driver_remove()
160 		return codec->bus->core.ext_ops->hdev_detach(&codec->core);  in hda_codec_driver_remove()
163 	snd_hda_codec_disconnect_pcms(codec);  in hda_codec_driver_remove()
164 	snd_hda_jack_tbl_disconnect(codec);  in hda_codec_driver_remove()
165 	if (!refcount_dec_and_test(&codec->pcm_ref))  in hda_codec_driver_remove()
166 		wait_event(codec->remove_sleep, !refcount_read(&codec->pcm_ref));  in hda_codec_driver_remove()
167 	snd_power_sync_ref(codec->bus->card);  in hda_codec_driver_remove()
170 		driver->ops->remove(codec);  in hda_codec_driver_remove()
171 	snd_hda_codec_cleanup_for_unbind(codec);  in hda_codec_driver_remove()
172 	codec->preset = NULL;  in hda_codec_driver_remove()
205 static inline bool codec_probed(struct hda_codec *codec)  in codec_probed()  argument
207 	return device_attach(hda_codec_dev(codec)) > 0 && codec->preset;  in codec_probed()
210 /* try to auto-load codec module */
211 static void request_codec_module(struct hda_codec *codec)  in request_codec_module()  argument
217 	switch (codec->probe_id) {  in request_codec_module()
220 		mod = "snd-hda-codec-hdmi";  in request_codec_module()
225 		mod = "snd-hda-codec-generic";  in request_codec_module()
229 		snd_hdac_codec_modalias(&codec->core, modalias, sizeof(modalias));  in request_codec_module()
239 /* try to auto-load and bind the codec module */
240 static void codec_bind_module(struct hda_codec *codec)  in codec_bind_module()  argument
243 	request_codec_module(codec);  in codec_bind_module()
244 	if (codec_probed(codec))  in codec_bind_module()
250 /* if all audio out widgets are digital, let's assume the codec as a HDMI/DP */
251 static bool is_likely_hdmi_codec(struct hda_codec *codec)  in is_likely_hdmi_codec()  argument
259 	if (!codec->wcaps)  in is_likely_hdmi_codec()
262 	for_each_hda_codec_node(nid, codec) {  in is_likely_hdmi_codec()
263 		unsigned int wcaps = get_wcaps(codec, nid);  in is_likely_hdmi_codec()
276 /* no HDMI codec parser support */
277 #define is_likely_hdmi_codec(codec)	false  argument
280 static int codec_bind_generic(struct hda_codec *codec)  in codec_bind_generic()  argument
282 	if (codec->probe_id)  in codec_bind_generic()
285 	if (is_likely_hdmi_codec(codec)) {  in codec_bind_generic()
286 		codec->probe_id = HDA_CODEC_ID_GENERIC_HDMI;  in codec_bind_generic()
287 		request_codec_module(codec);  in codec_bind_generic()
288 		if (codec_probed(codec))  in codec_bind_generic()
292 	codec->probe_id = HDA_CODEC_ID_GENERIC;  in codec_bind_generic()
293 	request_codec_module(codec);  in codec_bind_generic()
294 	if (codec_probed(codec))  in codec_bind_generic()
300 #define is_generic_config(codec) \  argument
301 	(codec->modelname && !strcmp(codec->modelname, "generic"))
303 #define is_generic_config(codec)	0  argument
307  * snd_hda_codec_configure - (Re-)configure the HD-audio codec
308  * @codec: the HDA codec
310  * Start parsing of the given codec tree and (re-)initialize the whole
311  * codec driver binding.
315 int snd_hda_codec_configure(struct hda_codec *codec)  in snd_hda_codec_configure()  argument
319 	if (codec->configured)  in snd_hda_codec_configure()
322 	if (is_generic_config(codec))  in snd_hda_codec_configure()
323 		codec->probe_id = HDA_CODEC_ID_GENERIC;  in snd_hda_codec_configure()
325 		codec->probe_id = 0;  in snd_hda_codec_configure()
327 	if (!device_is_registered(&codec->core.dev)) {  in snd_hda_codec_configure()
328 		err = snd_hdac_device_register(&codec->core);  in snd_hda_codec_configure()
333 	if (!codec->preset)  in snd_hda_codec_configure()
334 		codec_bind_module(codec);  in snd_hda_codec_configure()
335 	if (!codec->preset) {  in snd_hda_codec_configure()
336 		err = codec_bind_generic(codec);  in snd_hda_codec_configure()
338 			codec_dbg(codec, "Unable to bind the codec\n");  in snd_hda_codec_configure()
343 	codec->configured = 1;  in snd_hda_codec_configure()