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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * ads117x.c -- Driver for ads1174/8 ADC chips
4 *
5 * Copyright 2009 ShotSpotter Inc.
6 * Author: Graeme Gregory <gg@slimlogic.co.uk>
7 */
8
9#include <linux/kernel.h>
10#include <linux/slab.h>
11#include <linux/init.h>
12#include <linux/device.h>
13#include <linux/module.h>
14#include <sound/core.h>
15#include <sound/pcm.h>
16#include <sound/initval.h>
17#include <sound/soc.h>
18
19#include <linux/of.h>
20
21#define ADS117X_RATES (SNDRV_PCM_RATE_8000_48000)
22#define ADS117X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)
23
24static const struct snd_soc_dapm_widget ads117x_dapm_widgets[] = {
25SND_SOC_DAPM_INPUT("Input1"),
26SND_SOC_DAPM_INPUT("Input2"),
27SND_SOC_DAPM_INPUT("Input3"),
28SND_SOC_DAPM_INPUT("Input4"),
29SND_SOC_DAPM_INPUT("Input5"),
30SND_SOC_DAPM_INPUT("Input6"),
31SND_SOC_DAPM_INPUT("Input7"),
32SND_SOC_DAPM_INPUT("Input8"),
33};
34
35static const struct snd_soc_dapm_route ads117x_dapm_routes[] = {
36 { "Capture", NULL, "Input1" },
37 { "Capture", NULL, "Input2" },
38 { "Capture", NULL, "Input3" },
39 { "Capture", NULL, "Input4" },
40 { "Capture", NULL, "Input5" },
41 { "Capture", NULL, "Input6" },
42 { "Capture", NULL, "Input7" },
43 { "Capture", NULL, "Input8" },
44};
45
46static struct snd_soc_dai_driver ads117x_dai = {
47/* ADC */
48 .name = "ads117x-hifi",
49 .capture = {
50 .stream_name = "Capture",
51 .channels_min = 1,
52 .channels_max = 32,
53 .rates = ADS117X_RATES,
54 .formats = ADS117X_FORMATS,},
55};
56
57static const struct snd_soc_component_driver soc_component_dev_ads117x = {
58 .dapm_widgets = ads117x_dapm_widgets,
59 .num_dapm_widgets = ARRAY_SIZE(ads117x_dapm_widgets),
60 .dapm_routes = ads117x_dapm_routes,
61 .num_dapm_routes = ARRAY_SIZE(ads117x_dapm_routes),
62 .idle_bias_on = 1,
63 .use_pmdown_time = 1,
64 .endianness = 1,
65};
66
67static int ads117x_probe(struct platform_device *pdev)
68{
69 return devm_snd_soc_register_component(&pdev->dev,
70 &soc_component_dev_ads117x, &ads117x_dai, 1);
71}
72
73#if defined(CONFIG_OF)
74static const struct of_device_id ads117x_dt_ids[] = {
75 { .compatible = "ti,ads1174" },
76 { .compatible = "ti,ads1178" },
77 { },
78};
79MODULE_DEVICE_TABLE(of, ads117x_dt_ids);
80#endif
81
82static struct platform_driver ads117x_codec_driver = {
83 .driver = {
84 .name = "ads117x-codec",
85 .of_match_table = of_match_ptr(ads117x_dt_ids),
86 },
87
88 .probe = ads117x_probe,
89};
90
91module_platform_driver(ads117x_codec_driver);
92
93MODULE_DESCRIPTION("ASoC ads117x driver");
94MODULE_AUTHOR("Graeme Gregory");
95MODULE_LICENSE("GPL");
1/*
2 * ads117x.c -- Driver for ads1174/8 ADC chips
3 *
4 * Copyright 2009 ShotSpotter Inc.
5 * Author: Graeme Gregory <gg@slimlogic.co.uk>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 */
12
13#include <linux/kernel.h>
14#include <linux/slab.h>
15#include <linux/init.h>
16#include <linux/device.h>
17#include <linux/module.h>
18#include <sound/core.h>
19#include <sound/pcm.h>
20#include <sound/initval.h>
21#include <sound/soc.h>
22
23#include <linux/of.h>
24
25#define ADS117X_RATES (SNDRV_PCM_RATE_8000_48000)
26#define ADS117X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)
27
28static const struct snd_soc_dapm_widget ads117x_dapm_widgets[] = {
29SND_SOC_DAPM_INPUT("Input1"),
30SND_SOC_DAPM_INPUT("Input2"),
31SND_SOC_DAPM_INPUT("Input3"),
32SND_SOC_DAPM_INPUT("Input4"),
33SND_SOC_DAPM_INPUT("Input5"),
34SND_SOC_DAPM_INPUT("Input6"),
35SND_SOC_DAPM_INPUT("Input7"),
36SND_SOC_DAPM_INPUT("Input8"),
37};
38
39static const struct snd_soc_dapm_route ads117x_dapm_routes[] = {
40 { "Capture", NULL, "Input1" },
41 { "Capture", NULL, "Input2" },
42 { "Capture", NULL, "Input3" },
43 { "Capture", NULL, "Input4" },
44 { "Capture", NULL, "Input5" },
45 { "Capture", NULL, "Input6" },
46 { "Capture", NULL, "Input7" },
47 { "Capture", NULL, "Input8" },
48};
49
50static struct snd_soc_dai_driver ads117x_dai = {
51/* ADC */
52 .name = "ads117x-hifi",
53 .capture = {
54 .stream_name = "Capture",
55 .channels_min = 1,
56 .channels_max = 32,
57 .rates = ADS117X_RATES,
58 .formats = ADS117X_FORMATS,},
59};
60
61static struct snd_soc_codec_driver soc_codec_dev_ads117x = {
62 .component_driver = {
63 .dapm_widgets = ads117x_dapm_widgets,
64 .num_dapm_widgets = ARRAY_SIZE(ads117x_dapm_widgets),
65 .dapm_routes = ads117x_dapm_routes,
66 .num_dapm_routes = ARRAY_SIZE(ads117x_dapm_routes),
67 },
68};
69
70static int ads117x_probe(struct platform_device *pdev)
71{
72 return snd_soc_register_codec(&pdev->dev,
73 &soc_codec_dev_ads117x, &ads117x_dai, 1);
74}
75
76static int ads117x_remove(struct platform_device *pdev)
77{
78 snd_soc_unregister_codec(&pdev->dev);
79 return 0;
80}
81
82#if defined(CONFIG_OF)
83static const struct of_device_id ads117x_dt_ids[] = {
84 { .compatible = "ti,ads1174" },
85 { .compatible = "ti,ads1178" },
86 { },
87};
88MODULE_DEVICE_TABLE(of, ads117x_dt_ids);
89#endif
90
91static struct platform_driver ads117x_codec_driver = {
92 .driver = {
93 .name = "ads117x-codec",
94 .of_match_table = of_match_ptr(ads117x_dt_ids),
95 },
96
97 .probe = ads117x_probe,
98 .remove = ads117x_remove,
99};
100
101module_platform_driver(ads117x_codec_driver);
102
103MODULE_DESCRIPTION("ASoC ads117x driver");
104MODULE_AUTHOR("Graeme Gregory");
105MODULE_LICENSE("GPL");