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 	mutex_init(&codec->regmap_lock);  in snd_hdac_device_init()
61 	pm_runtime_set_active(&codec->dev);  in snd_hdac_device_init()
62 	pm_runtime_get_noresume(&codec->dev);  in snd_hdac_device_init()
63 	atomic_set(&codec->in_pm, 0);  in snd_hdac_device_init()
65 	err = snd_hdac_bus_add_device(bus, codec);  in snd_hdac_device_init()
70 	codec->vendor_id = snd_hdac_read_parm(codec, AC_NODE_ROOT,  in snd_hdac_device_init()
72 	if (codec->vendor_id == -1) {  in snd_hdac_device_init()
76 		codec->vendor_id = snd_hdac_read_parm(codec, AC_NODE_ROOT,  in snd_hdac_device_init()
80 	codec->subsystem_id = snd_hdac_read_parm(codec, AC_NODE_ROOT,  in snd_hdac_device_init()
82 	codec->revision_id = snd_hdac_read_parm(codec, AC_NODE_ROOT,  in snd_hdac_device_init()
85 	setup_fg_nodes(codec);  in snd_hdac_device_init()
86 	if (!codec->afg && !codec->mfg) {  in snd_hdac_device_init()
92 	fg = codec->afg ? codec->afg : codec->mfg;  in snd_hdac_device_init()
94 	err = snd_hdac_refresh_widgets(codec);  in snd_hdac_device_init()
98 	codec->power_caps = snd_hdac_read_parm(codec, fg, AC_PAR_POWER_STATE);  in snd_hdac_device_init()
100 	if (codec->subsystem_id == -1 || codec->subsystem_id == 0)  in snd_hdac_device_init()
101 		snd_hdac_read(codec, fg, AC_VERB_GET_SUBSYSTEM_ID, 0,  in snd_hdac_device_init()
102 			      &codec->subsystem_id);  in snd_hdac_device_init()
104 	err = get_codec_vendor_name(codec);  in snd_hdac_device_init()
108 	codec->chip_name = kasprintf(GFP_KERNEL, "ID %x",  in snd_hdac_device_init()
109 				     codec->vendor_id & 0xffff);  in snd_hdac_device_init()
110 	if (!codec->chip_name) {  in snd_hdac_device_init()
118 	put_device(&codec->dev);  in snd_hdac_device_init()
124  * snd_hdac_device_exit - clean up the HD-audio codec base device
125  * @codec: device to clean up
127 void snd_hdac_device_exit(struct hdac_device *codec)  in snd_hdac_device_exit()  argument
129 	pm_runtime_put_noidle(&codec->dev);  in snd_hdac_device_exit()
131 	pm_runtime_set_suspended(&codec->dev);  in snd_hdac_device_exit()
132 	snd_hdac_bus_remove_device(codec->bus, codec);  in snd_hdac_device_exit()
133 	kfree(codec->vendor_name);  in snd_hdac_device_exit()
134 	kfree(codec->chip_name);  in snd_hdac_device_exit()
139  * snd_hdac_device_register - register the hd-audio codec base device
140  * @codec: the device to register
142 int snd_hdac_device_register(struct hdac_device *codec)  in snd_hdac_device_register()  argument
146 	err = device_add(&codec->dev);  in snd_hdac_device_register()
149 	mutex_lock(&codec->widget_lock);  in snd_hdac_device_register()
150 	err = hda_widget_sysfs_init(codec);  in snd_hdac_device_register()
151 	mutex_unlock(&codec->widget_lock);  in snd_hdac_device_register()
153 		device_del(&codec->dev);  in snd_hdac_device_register()
162  * snd_hdac_device_unregister - unregister the hd-audio codec base device
163  * @codec: the device to unregister
165 void snd_hdac_device_unregister(struct hdac_device *codec)  in snd_hdac_device_unregister()  argument
167 	if (device_is_registered(&codec->dev)) {  in snd_hdac_device_unregister()
168 		mutex_lock(&codec->widget_lock);  in snd_hdac_device_unregister()
169 		hda_widget_sysfs_exit(codec);  in snd_hdac_device_unregister()
170 		mutex_unlock(&codec->widget_lock);  in snd_hdac_device_unregister()
171 		device_del(&codec->dev);  in snd_hdac_device_unregister()
172 		snd_hdac_bus_remove_device(codec->bus, codec);  in snd_hdac_device_unregister()
178  * snd_hdac_device_set_chip_name - set/update the codec name
179  * @codec: the HDAC device
184 int snd_hdac_device_set_chip_name(struct hdac_device *codec, const char *name)  in snd_hdac_device_set_chip_name()  argument
193 	kfree(codec->chip_name);  in snd_hdac_device_set_chip_name()
194 	codec->chip_name = newname;  in snd_hdac_device_set_chip_name()
201  * @codec: HDAC device
207 int snd_hdac_codec_modalias(struct hdac_device *codec, char *buf, size_t size)  in snd_hdac_codec_modalias()  argument
210 			codec->vendor_id, codec->revision_id, codec->type);  in snd_hdac_codec_modalias()
217  * @codec: the codec object
224 static unsigned int snd_hdac_make_cmd(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_make_cmd()  argument
229 	addr = codec->addr;  in snd_hdac_make_cmd()
232 		dev_err(&codec->dev, "out of range cmd %x:%x:%x:%x\n",  in snd_hdac_make_cmd()
246  * @codec: the codec object
256 int snd_hdac_exec_verb(struct hdac_device *codec, unsigned int cmd,  in snd_hdac_exec_verb()  argument
259 	if (codec->exec_verb)  in snd_hdac_exec_verb()
260 		return codec->exec_verb(codec, cmd, flags, res);  in snd_hdac_exec_verb()
261 	return snd_hdac_bus_exec_verb(codec->bus, codec->addr, cmd, res);  in snd_hdac_exec_verb()
267  * @codec: the codec object
275 int snd_hdac_read(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_read()  argument
278 	unsigned int cmd = snd_hdac_make_cmd(codec, nid, verb, parm);  in snd_hdac_read()
280 	return snd_hdac_exec_verb(codec, cmd, 0, res);  in snd_hdac_read()
286  * @codec: the codec object
293 int _snd_hdac_read_parm(struct hdac_device *codec, hda_nid_t nid, int parm,  in _snd_hdac_read_parm()  argument
299 	return snd_hdac_regmap_read_raw(codec, cmd, res);  in _snd_hdac_read_parm()
304  * snd_hdac_read_parm_uncached - read a codec parameter without caching
305  * @codec: the codec object
312 int snd_hdac_read_parm_uncached(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_read_parm_uncached()  argument
318 	if (snd_hdac_regmap_read_raw_uncached(codec, cmd, &val) < 0)  in snd_hdac_read_parm_uncached()
326  * @codec: the codec object
331 int snd_hdac_override_parm(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_override_parm()  argument
337 	if (!codec->regmap)  in snd_hdac_override_parm()
340 	codec->caps_overwriting = true;  in snd_hdac_override_parm()
341 	err = snd_hdac_regmap_write_raw(codec, verb, val);  in snd_hdac_override_parm()
342 	codec->caps_overwriting = false;  in snd_hdac_override_parm()
349  * @codec: the codec object
356 int snd_hdac_get_sub_nodes(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_get_sub_nodes()  argument
361 	parm = snd_hdac_read_parm_uncached(codec, nid, AC_PAR_NODE_COUNT);  in snd_hdac_get_sub_nodes()
374 static void setup_fg_nodes(struct hdac_device *codec)  in setup_fg_nodes()  argument
379 	total_nodes = snd_hdac_get_sub_nodes(codec, AC_NODE_ROOT, &nid);  in setup_fg_nodes()
381 		function_id = snd_hdac_read_parm(codec, nid,  in setup_fg_nodes()
385 			codec->afg = nid;  in setup_fg_nodes()
386 			codec->afg_function_id = function_id & 0xff;  in setup_fg_nodes()
387 			codec->afg_unsol = (function_id >> 8) & 1;  in setup_fg_nodes()
390 			codec->mfg = nid;  in setup_fg_nodes()
391 			codec->mfg_function_id = function_id & 0xff;  in setup_fg_nodes()
392 			codec->mfg_unsol = (function_id >> 8) & 1;  in setup_fg_nodes()
402  * @codec: the codec object
404 int snd_hdac_refresh_widgets(struct hdac_device *codec)  in snd_hdac_refresh_widgets()  argument
413 	mutex_lock(&codec->widget_lock);  in snd_hdac_refresh_widgets()
414 	nums = snd_hdac_get_sub_nodes(codec, codec->afg, &start_nid);  in snd_hdac_refresh_widgets()
416 		dev_err(&codec->dev, "cannot read sub nodes for FG 0x%02x\n",  in snd_hdac_refresh_widgets()
417 			codec->afg);  in snd_hdac_refresh_widgets()
422 	err = hda_widget_sysfs_reinit(codec, start_nid, nums);  in snd_hdac_refresh_widgets()
426 	codec->num_nodes = nums;  in snd_hdac_refresh_widgets()
427 	codec->start_nid = start_nid;  in snd_hdac_refresh_widgets()
428 	codec->end_nid = start_nid + nums;  in snd_hdac_refresh_widgets()
430 	mutex_unlock(&codec->widget_lock);  in snd_hdac_refresh_widgets()
436 static unsigned int get_num_conns(struct hdac_device *codec, hda_nid_t nid)  in get_num_conns()  argument
438 	unsigned int wcaps = get_wcaps(codec, nid);  in get_num_conns()
445 	parm = snd_hdac_read_parm(codec, nid, AC_PAR_CONNLIST_LEN);  in get_num_conns()
453  * @codec: the codec object
464 int snd_hdac_get_connections(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_get_connections()  argument
473 	parm = get_num_conns(codec, nid);  in snd_hdac_get_connections()
494 		err = snd_hdac_read(codec, nid, AC_VERB_GET_CONNECT_LIST, 0,  in snd_hdac_get_connections()
511 			err = snd_hdac_read(codec, nid,  in snd_hdac_get_connections()
520 			dev_dbg(&codec->dev,  in snd_hdac_get_connections()
529 				dev_warn(&codec->dev,  in snd_hdac_get_connections()
558  * snd_hdac_power_up - power up the codec
559  * @codec: the codec object
561  * This function calls the runtime PM helper to power up the given codec.
567 int snd_hdac_power_up(struct hdac_device *codec)  in snd_hdac_power_up()  argument
569 	return pm_runtime_get_sync(&codec->dev);  in snd_hdac_power_up()
574  * snd_hdac_power_down - power down the codec
575  * @codec: the codec object
579 int snd_hdac_power_down(struct hdac_device *codec)  in snd_hdac_power_down()  argument
581 	struct device *dev = &codec->dev;  in snd_hdac_power_down()
589  * snd_hdac_power_up_pm - power up the codec
590  * @codec: the codec object
599 int snd_hdac_power_up_pm(struct hdac_device *codec)  in snd_hdac_power_up_pm()  argument
601 	if (!atomic_inc_not_zero(&codec->in_pm))  in snd_hdac_power_up_pm()
602 		return snd_hdac_power_up(codec);  in snd_hdac_power_up_pm()
611 int snd_hdac_keep_power_up(struct hdac_device *codec)  in snd_hdac_keep_power_up()  argument
613 	if (!atomic_inc_not_zero(&codec->in_pm)) {  in snd_hdac_keep_power_up()
614 		int ret = pm_runtime_get_if_in_use(&codec->dev);  in snd_hdac_keep_power_up()
624  * snd_hdac_power_down_pm - power down the codec
625  * @codec: the codec object
632 int snd_hdac_power_down_pm(struct hdac_device *codec)  in snd_hdac_power_down_pm()  argument
634 	if (atomic_dec_if_positive(&codec->in_pm) < 0)  in snd_hdac_power_down_pm()
635 		return snd_hdac_power_down(codec);  in snd_hdac_power_down_pm()
641 /* codec vendor labels */
672 /* store the codec vendor name */
673 static int get_codec_vendor_name(struct hdac_device *codec)  in get_codec_vendor_name()  argument
676 	u16 vendor_id = codec->vendor_id >> 16;  in get_codec_vendor_name()
680 			codec->vendor_name = kstrdup(c->name, GFP_KERNEL);  in get_codec_vendor_name()
681 			return codec->vendor_name ? 0 : -ENOMEM;  in get_codec_vendor_name()
685 	codec->vendor_name = kasprintf(GFP_KERNEL, "Generic %04x", vendor_id);  in get_codec_vendor_name()
686 	return codec->vendor_name ? 0 : -ENOMEM;  in get_codec_vendor_name()
788 static unsigned int query_pcm_param(struct hdac_device *codec, hda_nid_t nid)  in query_pcm_param()  argument
792 	if (nid != codec->afg &&  in query_pcm_param()
793 	    (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD))  in query_pcm_param()
794 		val = snd_hdac_read_parm(codec, nid, AC_PAR_PCM);  in query_pcm_param()
796 		val = snd_hdac_read_parm(codec, codec->afg, AC_PAR_PCM);  in query_pcm_param()
802 static unsigned int query_stream_param(struct hdac_device *codec, hda_nid_t nid)  in query_stream_param()  argument
804 	unsigned int streams = snd_hdac_read_parm(codec, nid, AC_PAR_STREAM);  in query_stream_param()
807 		streams = snd_hdac_read_parm(codec, codec->afg, AC_PAR_STREAM);  in query_stream_param()
815  * @codec: the codec object
826 int snd_hdac_query_supported_pcm(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_query_supported_pcm()  argument
831 	wcaps = get_wcaps(codec, nid);  in snd_hdac_query_supported_pcm()
832 	val = query_pcm_param(codec, nid);  in snd_hdac_query_supported_pcm()
841 			dev_err(&codec->dev,  in snd_hdac_query_supported_pcm()
854 		streams = query_stream_param(codec, nid);  in snd_hdac_query_supported_pcm()
888 #if 0 /* FIXME: CS4206 doesn't work, which is the only codec supporting float */  in snd_hdac_query_supported_pcm()
904 			dev_err(&codec->dev,  in snd_hdac_query_supported_pcm()
923  * @codec: the codec object
931 bool snd_hdac_is_supported_format(struct hdac_device *codec, hda_nid_t nid,  in snd_hdac_is_supported_format()  argument
937 	val = query_pcm_param(codec, nid);  in snd_hdac_is_supported_format()
951 	stream = query_stream_param(codec, nid);  in snd_hdac_is_supported_format()
1072  * @codec: the HDAC device
1076  * Return power state or PS_ERROR if codec rejects GET verb.
1078 unsigned int snd_hdac_sync_power_state(struct hdac_device *codec,  in snd_hdac_sync_power_state()  argument
1085 		state = snd_hdac_codec_read(codec, nid, 0,  in snd_hdac_sync_power_state()
1096 		/* wait until the codec reachs to the target state */  in snd_hdac_sync_power_state()