3  * HD-audio codec core device
18 static void setup_fg_nodes(struct hdac_device *codec);
19 static int get_codec_vendor_name(struct hdac_device *codec);
27  * snd_hdac_device_init - initialize the HD-audio codec base device
28  * @codec: device to initialize
31  * @addr: codec address
40 int snd_hdac_device_init(struct hdac_device *codec, struct hdac_bus *bus,  in snd_hdac_device_init()  argument
47 	dev = &codec->dev;  in snd_hdac_device_init()
56 	codec->bus = bus;  in snd_hdac_device_init()
57 	codec->addr = addr;  in snd_hdac_device_init()
58 	codec->type = HDA_DEV_CORE;  in snd_hdac_device_init()
59 	mutex_init(&codec->widget_lock);  in snd_hdac_device_init()
60 	pm_runtime_set_active(&codec->dev);  in snd_hdac_device_init()
61 	pm_runtime_get_noresume(&codec->dev);  in snd_hdac_device_init()
62 	atomic_set(&codec->in_pm, 0);  in snd_hdac_device_init()
64 	err = snd_hdac_bus_add_device(bus, codec);  in snd_hdac_device_init()
69 	codec->vendor_id = snd_hdac_read_parm(codec, AC_NODE_ROOT,  in snd_hdac_device_init()
71 	if (codec->vendor_id == -1) {  in snd_hdac_device_init()
75 		codec->vendor_id = snd_hdac_read_parm(codec, AC_NODE_ROOT,  in snd_hdac_device_init()
79 	codec->subsystem_id = snd_hdac_read_parm(codec, AC_NODE_ROOT,  in snd_hdac_device_init()
81 	codec->revision_id = snd_hdac_read_parm(codec, AC_NODE_ROOT,  in snd_hdac_device_init()
84 	setup_fg_nodes(codec);  in snd_hdac_device_init()
85 	if (!codec->afg && !codec->mfg) {  in snd_hdac_device_init()
91 	fg = codec->afg ? codec->afg : codec->mfg;  in snd_hdac_device_init()
93 	err = snd_hdac_refresh_widgets(codec);  in snd_hdac_device_init()
97 	codec->power_caps = snd_hdac_read_parm(codec, fg, AC_PAR_POWER_STATE);  in snd_hdac_device_init()
99 	if (codec->subsystem_id == -1 || codec->subsystem_id == 0)  in snd_hdac_device_init()
100 		snd_hdac_read(codec, fg, AC_VERB_GET_SUBSYSTEM_ID, 0,  in snd_hdac_device_init()
101 			      &codec->subsystem_id);  in snd_hdac_device_init()
103 	err = get_codec_vendor_name(codec);  in snd_hdac_device_init()
107 	codec->chip_name = kasprintf(GFP_KERNEL, "ID %x",  in snd_hdac_device_init()
108 				     codec->vendor_id & 0xffff);  in snd_hdac_device_init()
109 	if (!codec->chip_name) {  in snd_hdac_device_init()
117 	put_device(&codec->dev);  in snd_hdac_device_init()
123  * snd_hdac_device_exit - clean up the HD-audio codec base device
124  * @codec: device to clean up
126 void snd_hdac_device_exit(struct hdac_device *codec)  in snd_hdac_device_exit()  argument
128 	pm_runtime_put_noidle(&codec->dev);  in snd_hdac_device_exit()
129 	snd_hdac_bus_remove_device(codec->bus, codec);  in snd_hdac_device_exit()
130 	kfree(codec->vendor_name);  in snd_hdac_device_exit()
131 	kfree(codec->chip_name);  in snd_hdac_device_exit()
136  * snd_hdac_device_register - register the hd-audio codec base device
137  * codec: the device to register
139 int snd_hdac_device_register(struct hdac_device *codec)  in snd_hdac_device_register()  argument
143 	err = device_add(&codec->dev);  in snd_hdac_device_register()
146 	mutex_lock(&codec->widget_lock);  in snd_hdac_device_register()
147 	err = hda_widget_sysfs_init(codec);  in snd_hdac_device_register()
148 	mutex_unlock(&codec->widget_lock);  in snd_hdac_device_register()
150 		device_del(&codec->dev);  in snd_hdac_device_register()
159  * snd_hdac_device_unregister - unregister the hd-audio codec base device
160  * codec: the device to unregister
162 void snd_hdac_device_unregister(struct hdac_device *codec)  in snd_hdac_device_unregister()  argument
164 	if (device_is_registered(&codec->dev)) {  in snd_hdac_device_unregister()
165 		mutex_lock(&codec->widget_lock);  in snd_hdac_device_unregister()
166 		hda_widget_sysfs_exit(codec);  in snd_hdac_device_unregister()
167 		mutex_unlock(&codec->widget_lock);  in snd_hdac_device_unregister()
168 		device_del(&codec->dev);  in snd_hdac_device_unregister()
169 		snd_hdac_bus_remove_device(codec->bus, codec);  in snd_hdac_device_unregister()
175  * snd_hdac_device_set_chip_name - set/update the codec name
176  * @codec: the HDAC device
181 int snd_hdac_device_set_chip_name(struct hdac_device *codec, const char *name)  in snd_hdac_device_set_chip_name()  argument
190 	kfree(codec->chip_name);  in snd_hdac_device_set_chip_name()
191 	codec->chip_name = newname;  in snd_hdac_device_set_chip_name()
198  * @codec: HDAC device
204 int snd_hdac_codec_modalias(struct hdac_device *codec, char *buf, size_t size)  in snd_hdac_codec_modalias()  argument
207 			codec->vendor_id, codec->revision_id, codec->type);  in snd_hdac_codec_modalias()
214  * @codec: the codec object
221 static unsigned int snd_hdac_make_cmd(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_make_cmd()  argument
226 	addr = codec->addr;  in snd_hdac_make_cmd()
229 		dev_err(&codec->dev, "out of range cmd %x:%x:%x:%x\n",  in snd_hdac_make_cmd()
243  * @codec: the codec object
253 int snd_hdac_exec_verb(struct hdac_device *codec, unsigned int cmd,  in snd_hdac_exec_verb()  argument
256 	if (codec->exec_verb)  in snd_hdac_exec_verb()
257 		return codec->exec_verb(codec, cmd, flags, res);  in snd_hdac_exec_verb()
258 	return snd_hdac_bus_exec_verb(codec->bus, codec->addr, cmd, res);  in snd_hdac_exec_verb()
264  * @codec: the codec object
272 int snd_hdac_read(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_read()  argument
275 	unsigned int cmd = snd_hdac_make_cmd(codec, nid, verb, parm);  in snd_hdac_read()
277 	return snd_hdac_exec_verb(codec, cmd, 0, res);  in snd_hdac_read()
286 int _snd_hdac_read_parm(struct hdac_device *codec, hda_nid_t nid, int parm,  in _snd_hdac_read_parm()  argument
292 	return snd_hdac_regmap_read_raw(codec, cmd, res);  in _snd_hdac_read_parm()
297  * snd_hdac_read_parm_uncached - read a codec parameter without caching
298  * @codec: the codec object
305 int snd_hdac_read_parm_uncached(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_read_parm_uncached()  argument
311 	if (snd_hdac_regmap_read_raw_uncached(codec, cmd, &val) < 0)  in snd_hdac_read_parm_uncached()
319  * @codec: the codec object
324 int snd_hdac_override_parm(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_override_parm()  argument
330 	if (!codec->regmap)  in snd_hdac_override_parm()
333 	codec->caps_overwriting = true;  in snd_hdac_override_parm()
334 	err = snd_hdac_regmap_write_raw(codec, verb, val);  in snd_hdac_override_parm()
335 	codec->caps_overwriting = false;  in snd_hdac_override_parm()
342  * @codec: the codec object
349 int snd_hdac_get_sub_nodes(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_get_sub_nodes()  argument
354 	parm = snd_hdac_read_parm_uncached(codec, nid, AC_PAR_NODE_COUNT);  in snd_hdac_get_sub_nodes()
367 static void setup_fg_nodes(struct hdac_device *codec)  in setup_fg_nodes()  argument
372 	total_nodes = snd_hdac_get_sub_nodes(codec, AC_NODE_ROOT, &nid);  in setup_fg_nodes()
374 		function_id = snd_hdac_read_parm(codec, nid,  in setup_fg_nodes()
378 			codec->afg = nid;  in setup_fg_nodes()
379 			codec->afg_function_id = function_id & 0xff;  in setup_fg_nodes()
380 			codec->afg_unsol = (function_id >> 8) & 1;  in setup_fg_nodes()
383 			codec->mfg = nid;  in setup_fg_nodes()
384 			codec->mfg_function_id = function_id & 0xff;  in setup_fg_nodes()
385 			codec->mfg_unsol = (function_id >> 8) & 1;  in setup_fg_nodes()
395  * @codec: the codec object
397 int snd_hdac_refresh_widgets(struct hdac_device *codec)  in snd_hdac_refresh_widgets()  argument
406 	mutex_lock(&codec->widget_lock);  in snd_hdac_refresh_widgets()
407 	nums = snd_hdac_get_sub_nodes(codec, codec->afg, &start_nid);  in snd_hdac_refresh_widgets()
409 		dev_err(&codec->dev, "cannot read sub nodes for FG 0x%02x\n",  in snd_hdac_refresh_widgets()
410 			codec->afg);  in snd_hdac_refresh_widgets()
415 	err = hda_widget_sysfs_reinit(codec, start_nid, nums);  in snd_hdac_refresh_widgets()
419 	codec->num_nodes = nums;  in snd_hdac_refresh_widgets()
420 	codec->start_nid = start_nid;  in snd_hdac_refresh_widgets()
421 	codec->end_nid = start_nid + nums;  in snd_hdac_refresh_widgets()
423 	mutex_unlock(&codec->widget_lock);  in snd_hdac_refresh_widgets()
429 static unsigned int get_num_conns(struct hdac_device *codec, hda_nid_t nid)  in get_num_conns()  argument
431 	unsigned int wcaps = get_wcaps(codec, nid);  in get_num_conns()
438 	parm = snd_hdac_read_parm(codec, nid, AC_PAR_CONNLIST_LEN);  in get_num_conns()
446  * @codec: the codec object
457 int snd_hdac_get_connections(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_get_connections()  argument
466 	parm = get_num_conns(codec, nid);  in snd_hdac_get_connections()
487 		err = snd_hdac_read(codec, nid, AC_VERB_GET_CONNECT_LIST, 0,  in snd_hdac_get_connections()
504 			err = snd_hdac_read(codec, nid,  in snd_hdac_get_connections()
513 			dev_dbg(&codec->dev,  in snd_hdac_get_connections()
522 				dev_warn(&codec->dev,  in snd_hdac_get_connections()
551  * snd_hdac_power_up - power up the codec
552  * @codec: the codec object
554  * This function calls the runtime PM helper to power up the given codec.
560 int snd_hdac_power_up(struct hdac_device *codec)  in snd_hdac_power_up()  argument
562 	return pm_runtime_get_sync(&codec->dev);  in snd_hdac_power_up()
567  * snd_hdac_power_down - power down the codec
568  * @codec: the codec object
572 int snd_hdac_power_down(struct hdac_device *codec)  in snd_hdac_power_down()  argument
574 	struct device *dev = &codec->dev;  in snd_hdac_power_down()
582  * snd_hdac_power_up_pm - power up the codec
583  * @codec: the codec object
592 int snd_hdac_power_up_pm(struct hdac_device *codec)  in snd_hdac_power_up_pm()  argument
594 	if (!atomic_inc_not_zero(&codec->in_pm))  in snd_hdac_power_up_pm()
595 		return snd_hdac_power_up(codec);  in snd_hdac_power_up_pm()
604 int snd_hdac_keep_power_up(struct hdac_device *codec)  in snd_hdac_keep_power_up()  argument
606 	if (!atomic_inc_not_zero(&codec->in_pm)) {  in snd_hdac_keep_power_up()
607 		int ret = pm_runtime_get_if_in_use(&codec->dev);  in snd_hdac_keep_power_up()
617  * snd_hdac_power_down_pm - power down the codec
618  * @codec: the codec object
625 int snd_hdac_power_down_pm(struct hdac_device *codec)  in snd_hdac_power_down_pm()  argument
627 	if (atomic_dec_if_positive(&codec->in_pm) < 0)  in snd_hdac_power_down_pm()
628 		return snd_hdac_power_down(codec);  in snd_hdac_power_down_pm()
634 /* codec vendor labels */
664 /* store the codec vendor name */
665 static int get_codec_vendor_name(struct hdac_device *codec)  in get_codec_vendor_name()  argument
668 	u16 vendor_id = codec->vendor_id >> 16;  in get_codec_vendor_name()
672 			codec->vendor_name = kstrdup(c->name, GFP_KERNEL);  in get_codec_vendor_name()
673 			return codec->vendor_name ? 0 : -ENOMEM;  in get_codec_vendor_name()
677 	codec->vendor_name = kasprintf(GFP_KERNEL, "Generic %04x", vendor_id);  in get_codec_vendor_name()
678 	return codec->vendor_name ? 0 : -ENOMEM;  in get_codec_vendor_name()
780 static unsigned int query_pcm_param(struct hdac_device *codec, hda_nid_t nid)  in query_pcm_param()  argument
784 	if (nid != codec->afg &&  in query_pcm_param()
785 	    (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD))  in query_pcm_param()
786 		val = snd_hdac_read_parm(codec, nid, AC_PAR_PCM);  in query_pcm_param()
788 		val = snd_hdac_read_parm(codec, codec->afg, AC_PAR_PCM);  in query_pcm_param()
794 static unsigned int query_stream_param(struct hdac_device *codec, hda_nid_t nid)  in query_stream_param()  argument
796 	unsigned int streams = snd_hdac_read_parm(codec, nid, AC_PAR_STREAM);  in query_stream_param()
799 		streams = snd_hdac_read_parm(codec, codec->afg, AC_PAR_STREAM);  in query_stream_param()
807  * @codec: the codec object
818 int snd_hdac_query_supported_pcm(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_query_supported_pcm()  argument
823 	wcaps = get_wcaps(codec, nid);  in snd_hdac_query_supported_pcm()
824 	val = query_pcm_param(codec, nid);  in snd_hdac_query_supported_pcm()
833 			dev_err(&codec->dev,  in snd_hdac_query_supported_pcm()
846 		streams = query_stream_param(codec, nid);  in snd_hdac_query_supported_pcm()
880 #if 0 /* FIXME: CS4206 doesn't work, which is the only codec supporting float */  in snd_hdac_query_supported_pcm()
896 			dev_err(&codec->dev,  in snd_hdac_query_supported_pcm()
915  * @codec: the codec object
923 bool snd_hdac_is_supported_format(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_is_supported_format()  argument
929 	val = query_pcm_param(codec, nid);  in snd_hdac_is_supported_format()
943 	stream = query_stream_param(codec, nid);  in snd_hdac_is_supported_format()
1068  * Return power state or PS_ERROR if codec rejects GET verb.
1070 unsigned int snd_hdac_sync_power_state(struct hdac_device *codec,  in snd_hdac_sync_power_state()  argument
1077 		state = snd_hdac_codec_read(codec, nid, 0,  in snd_hdac_sync_power_state()
1088 		/* wait until the codec reachs to the target state */  in snd_hdac_sync_power_state()