1 // SPDX-License-Identifier: GPL-2.0+
3  * Digital Beep Input Interface for HD-audio codec
26 	struct hda_codec *codec = beep->codec;  in generate_tone()  local
28 	if (tone && !beep->playing) {  in generate_tone()
29 		snd_hda_power_up(codec);  in generate_tone()
30 		if (beep->power_hook)  in generate_tone()
31 			beep->power_hook(beep, true);  in generate_tone()
32 		beep->playing = 1;  in generate_tone()
34 	if (!codec->beep_just_power_on)  in generate_tone()
35 		snd_hda_codec_write(codec, beep->nid, 0,  in generate_tone()
37 	if (!tone && beep->playing) {  in generate_tone()
38 		beep->playing = 0;  in generate_tone()
39 		if (beep->power_hook)  in generate_tone()
40 			beep->power_hook(beep, false);  in generate_tone()
41 		snd_hda_power_down(codec);  in generate_tone()
50 	if (beep->enabled)  in snd_hda_generate_beep()
51 		generate_tone(beep, beep->tone);  in snd_hda_generate_beep()
54 /* (non-standard) Linear beep tone calculation for IDT/STAC codecs 
58  *    freq = 48000 * (257 - tone) / 1024
66 	hz = hz - DIGBEEP_HZ_MIN  in beep_linear_tone()
67 		+ DIGBEEP_HZ_STEP / 2; /* round to nearest step */  in beep_linear_tone()
70 	else if (hz >= (DIGBEEP_HZ_MAX - DIGBEEP_HZ_MIN))  in beep_linear_tone()
74 		hz = 255 - hz;  in beep_linear_tone()
79 /* HD-audio standard beep tone parameter calculation
108 		if (beep->linear_tone)  in snd_hda_beep_event()
109 			beep->tone = beep_linear_tone(beep, hz);  in snd_hda_beep_event()
111 			beep->tone = beep_standard_tone(beep, hz);  in snd_hda_beep_event()
114 		return -1;  in snd_hda_beep_event()
118 	schedule_work(&beep->beep_work);  in snd_hda_beep_event()
124 	if (beep->keep_power_at_enable)  in turn_on_beep()
125 		snd_hda_power_up_pm(beep->codec);  in turn_on_beep()
130 	cancel_work_sync(&beep->beep_work);  in turn_off_beep()
131 	if (beep->playing) {  in turn_off_beep()
135 	if (beep->keep_power_at_enable)  in turn_off_beep()
136 		snd_hda_power_down_pm(beep->codec);  in turn_off_beep()
140  * snd_hda_enable_beep_device - Turn on/off beep sound
141  * @codec: the HDA codec
144 int snd_hda_enable_beep_device(struct hda_codec *codec, int enable)  in snd_hda_enable_beep_device()  argument
146 	struct hda_beep *beep = codec->beep;  in snd_hda_enable_beep_device()
150 	if (beep->enabled != enable) {  in snd_hda_enable_beep_device()
151 		beep->enabled = enable;  in snd_hda_enable_beep_device()
164 	struct hda_beep *beep = device->device_data;  in beep_dev_register()
167 	err = input_register_device(beep->dev);  in beep_dev_register()
169 		beep->registered = true;  in beep_dev_register()
175 	struct hda_beep *beep = device->device_data;  in beep_dev_disconnect()
177 	if (beep->registered)  in beep_dev_disconnect()
178 		input_unregister_device(beep->dev);  in beep_dev_disconnect()
180 		input_free_device(beep->dev);  in beep_dev_disconnect()
181 	if (beep->enabled)  in beep_dev_disconnect()
188 	struct hda_beep *beep = device->device_data;  in beep_dev_free()
190 	beep->codec->beep = NULL;  in beep_dev_free()
196  * snd_hda_attach_beep_device - Attach a beep input device
197  * @codec: the HDA codec
201  * explicitly or beep_mode of the codec is turned off, this doesn't nothing.
203  * Currently, only one beep device is allowed to each codec.
205 int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)  in snd_hda_attach_beep_device()  argument
216 	if (!codec->beep_just_power_on) {  in snd_hda_attach_beep_device()
217 		if (!snd_hda_get_bool_hint(codec, "beep"))  in snd_hda_attach_beep_device()
219 		if (codec->beep_mode == HDA_BEEP_MODE_OFF)  in snd_hda_attach_beep_device()
225 		return -ENOMEM;  in snd_hda_attach_beep_device()
226 	snprintf(beep->phys, sizeof(beep->phys),  in snd_hda_attach_beep_device()
227 		"card%d/codec#%d/beep0", codec->card->number, codec->addr);  in snd_hda_attach_beep_device()
229 	snd_hda_codec_write_cache(codec, nid, 0,  in snd_hda_attach_beep_device()
232 	beep->nid = nid;  in snd_hda_attach_beep_device()
233 	beep->codec = codec;  in snd_hda_attach_beep_device()
234 	codec->beep = beep;  in snd_hda_attach_beep_device()
236 	INIT_WORK(&beep->beep_work, &snd_hda_generate_beep);  in snd_hda_attach_beep_device()
240 		err = -ENOMEM;  in snd_hda_attach_beep_device()
245 	input_dev->name = "HDA Digital PCBeep";  in snd_hda_attach_beep_device()
246 	input_dev->phys = beep->phys;  in snd_hda_attach_beep_device()
247 	input_dev->id.bustype = BUS_PCI;  in snd_hda_attach_beep_device()
248 	input_dev->dev.parent = &codec->card->card_dev;  in snd_hda_attach_beep_device()
250 	input_dev->id.vendor = codec->core.vendor_id >> 16;  in snd_hda_attach_beep_device()
251 	input_dev->id.product = codec->core.vendor_id & 0xffff;  in snd_hda_attach_beep_device()
252 	input_dev->id.version = 0x01;  in snd_hda_attach_beep_device()
254 	input_dev->evbit[0] = BIT_MASK(EV_SND);  in snd_hda_attach_beep_device()
255 	input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);  in snd_hda_attach_beep_device()
256 	input_dev->event = snd_hda_beep_event;  in snd_hda_attach_beep_device()
259 	beep->dev = input_dev;  in snd_hda_attach_beep_device()
261 	err = snd_device_new(codec->card, SNDRV_DEV_JACK, beep, &ops);  in snd_hda_attach_beep_device()
268 	input_free_device(beep->dev);  in snd_hda_attach_beep_device()
271 	codec->beep = NULL;  in snd_hda_attach_beep_device()
277  * snd_hda_detach_beep_device - Detach the beep device
278  * @codec: the HDA codec
280 void snd_hda_detach_beep_device(struct hda_codec *codec)  in snd_hda_detach_beep_device()  argument
282 	if (!codec->bus->shutdown && codec->beep)  in snd_hda_detach_beep_device()
283 		snd_device_free(codec->card, codec->beep);  in snd_hda_detach_beep_device()
289 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);  in ctl_has_mute()  local
290 	return query_amp_caps(codec, get_amp_nid(kcontrol),  in ctl_has_mute()
297  * snd_hda_mixer_amp_switch_get_beep - Get callback for beep controls
304 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);  in snd_hda_mixer_amp_switch_get_beep()  local
305 	struct hda_beep *beep = codec->beep;  in snd_hda_mixer_amp_switch_get_beep()
308 	if (beep && (!beep->enabled || !ctl_has_mute(kcontrol))) {  in snd_hda_mixer_amp_switch_get_beep()
310 			ucontrol->value.integer.value[0] = beep->enabled;  in snd_hda_mixer_amp_switch_get_beep()
311 		if (chs & 2)  in snd_hda_mixer_amp_switch_get_beep()
312 			ucontrol->value.integer.value[1] = beep->enabled;  in snd_hda_mixer_amp_switch_get_beep()
320  * snd_hda_mixer_amp_switch_put_beep - Put callback for beep controls
327 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);  in snd_hda_mixer_amp_switch_put_beep()  local
328 	struct hda_beep *beep = codec->beep;  in snd_hda_mixer_amp_switch_put_beep()
332 		long *valp = ucontrol->value.integer.value;  in snd_hda_mixer_amp_switch_put_beep()
337 		if (chs & 2)  in snd_hda_mixer_amp_switch_put_beep()
339 		snd_hda_enable_beep_device(codec, enable);  in snd_hda_mixer_amp_switch_put_beep()