1 // SPDX-License-Identifier: GPL-2.0
3 // TSE-850 audio - ASoC driver for the Axentia TSE-850 with a PCM5142 codec
10 //   IN1 +---o  +------------+  o---+ OUT1
14 //             +--o  +--.     |
17 //             |      .---.   |
18 //   DAC +----------->|Sum|---+
19 //             |      '---'   |
23 //   IN2 +---o--+------------+--o---+ OUT2
26 // The 'loop1' gpio pin controls two relays, which are either in loop
33 // 'loop2' relays are active, short-cutting the TSE-850 from channel 2.
34 // IN1, IN2, OUT1 and OUT2 are TSE-850 connectors and DAC is the PCB name
64 	struct snd_soc_card *card = dapm->card;  in tse850_get_mux1()
67 	ucontrol->value.enumerated.item[0] = tse850->loop1_cache;  in tse850_get_mux1()
76 	struct snd_soc_card *card = dapm->card;  in tse850_put_mux1()
78 	struct soc_enum *e = (struct soc_enum *)kctrl->private_value;  in tse850_put_mux1()
79 	unsigned int val = ucontrol->value.enumerated.item[0];  in tse850_put_mux1()
81 	if (val >= e->items)  in tse850_put_mux1()
82 		return -EINVAL;  in tse850_put_mux1()
84 	gpiod_set_value_cansleep(tse850->loop1, val);  in tse850_put_mux1()
85 	tse850->loop1_cache = val;  in tse850_put_mux1()
94 	struct snd_soc_card *card = dapm->card;  in tse850_get_mux2()
97 	ucontrol->value.enumerated.item[0] = tse850->loop2_cache;  in tse850_get_mux2()
106 	struct snd_soc_card *card = dapm->card;  in tse850_put_mux2()
108 	struct soc_enum *e = (struct soc_enum *)kctrl->private_value;  in tse850_put_mux2()
109 	unsigned int val = ucontrol->value.enumerated.item[0];  in tse850_put_mux2()
111 	if (val >= e->items)  in tse850_put_mux2()
112 		return -EINVAL;  in tse850_put_mux2()
114 	gpiod_set_value_cansleep(tse850->loop2, val);  in tse850_put_mux2()
115 	tse850->loop2_cache = val;  in tse850_put_mux2()
124 	struct snd_soc_card *card = dapm->card;  in tse850_get_mix()
127 	ucontrol->value.enumerated.item[0] = tse850->add_cache;  in tse850_get_mix()
136 	struct snd_soc_card *card = dapm->card;  in tse850_put_mix()
138 	int connect = !!ucontrol->value.integer.value[0];  in tse850_put_mix()
140 	if (tse850->add_cache == connect)  in tse850_put_mix()
145 	 * inside snd_soc_dapm_mixer_update_power in the loop.  in tse850_put_mix()
147 	gpiod_set_value_cansleep(tse850->add, connect);  in tse850_put_mix()
148 	tse850->add_cache = connect;  in tse850_put_mix()
158 	struct snd_soc_card *card = dapm->card;  in tse850_get_ana()
162 	ret = regulator_get_voltage(tse850->ana);  in tse850_get_ana()
168 	 *      -11.5V to "Low" (enum 0)  in tse850_get_ana()
169 	 * 11.5V-12.5V to "12V" (enum 1)  in tse850_get_ana()
170 	 * 12.5V-13.5V to "13V" (enum 2)  in tse850_get_ana()
172 	 * 18.5V-19.5V to "19V" (enum 8)  in tse850_get_ana()
173 	 * 19.5V-      to "20V" (enum 9)  in tse850_get_ana()
179 	ret -= 11000000;  in tse850_get_ana()
182 	ucontrol->value.enumerated.item[0] = ret;  in tse850_get_ana()
191 	struct snd_soc_card *card = dapm->card;  in tse850_put_ana()
193 	struct soc_enum *e = (struct soc_enum *)kctrl->private_value;  in tse850_put_ana()
194 	unsigned int uV = ucontrol->value.enumerated.item[0];  in tse850_put_ana()
197 	if (uV >= e->items)  in tse850_put_ana()
198 		return -EINVAL;  in tse850_put_ana()
214 	ret = regulator_set_voltage(tse850->ana, uV, uV);  in tse850_put_ana()
221 static const char * const mux_text[] = { "Mixer", "Loop" };
275  * matter in practice since nothing is powered in those sections anyway.
281 	{ "MUX1", "Loop",  "IN1" },
284 	{ "MUX2", "Loop",  "IN2" },
299 	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "pcm512x-hifi")),
303 	.name = "TSE-850",
304 	.stream_name = "TSE-850-PCM",
312 	.name = "TSE-850-ASoC",
325 	struct device_node *np = pdev->dev.of_node;  in tse850_dt_init()
330 		dev_err(&pdev->dev, "only device tree supported\n");  in tse850_dt_init()
331 		return -EINVAL;  in tse850_dt_init()
334 	cpu_np = of_parse_phandle(np, "axentia,cpu-dai", 0);  in tse850_dt_init()
336 		dev_err(&pdev->dev, "failed to get cpu dai\n");  in tse850_dt_init()
337 		return -EINVAL;  in tse850_dt_init()
339 	dailink->cpus->of_node = cpu_np;  in tse850_dt_init()
340 	dailink->platforms->of_node = cpu_np;  in tse850_dt_init()
343 	codec_np = of_parse_phandle(np, "axentia,audio-codec", 0);  in tse850_dt_init()
345 		dev_err(&pdev->dev, "failed to get codec info\n");  in tse850_dt_init()
346 		return -EINVAL;  in tse850_dt_init()
348 	dailink->codecs->of_node = codec_np;  in tse850_dt_init()
357 	struct device *dev = card->dev = &pdev->dev;  in tse850_probe()
363 		return -ENOMEM;  in tse850_probe()
373 	tse850->add = devm_gpiod_get(dev, "axentia,add", GPIOD_OUT_HIGH);  in tse850_probe()
374 	if (IS_ERR(tse850->add))  in tse850_probe()
375 		return dev_err_probe(dev, PTR_ERR(tse850->add),  in tse850_probe()
377 	tse850->add_cache = 1;  in tse850_probe()
379 	tse850->loop1 = devm_gpiod_get(dev, "axentia,loop1", GPIOD_OUT_HIGH);  in tse850_probe()
380 	if (IS_ERR(tse850->loop1))  in tse850_probe()
381 		return dev_err_probe(dev, PTR_ERR(tse850->loop1),  in tse850_probe()
383 	tse850->loop1_cache = 1;  in tse850_probe()
385 	tse850->loop2 = devm_gpiod_get(dev, "axentia,loop2", GPIOD_OUT_HIGH);  in tse850_probe()
386 	if (IS_ERR(tse850->loop2))  in tse850_probe()
387 		return dev_err_probe(dev, PTR_ERR(tse850->loop2),  in tse850_probe()
389 	tse850->loop2_cache = 1;  in tse850_probe()
391 	tse850->ana = devm_regulator_get(dev, "axentia,ana");  in tse850_probe()
392 	if (IS_ERR(tse850->ana))  in tse850_probe()
393 		return dev_err_probe(dev, PTR_ERR(tse850->ana),  in tse850_probe()
396 	ret = regulator_enable(tse850->ana);  in tse850_probe()
411 	regulator_disable(tse850->ana);  in tse850_probe()
421 	regulator_disable(tse850->ana);  in tse850_remove()
425 	{ .compatible = "axentia,tse850-pcm5142", },
432 		.name = "axentia-tse850-pcm5142",
443 MODULE_DESCRIPTION("ALSA SoC driver for TSE-850 with PCM5142 codec");