1 // SPDX-License-Identifier: GPL-2.0-or-later <<
2 /* 1 /*
3 * ac97.c -- ALSA Soc AC97 codec support 2 * ac97.c -- ALSA Soc AC97 codec support
4 * 3 *
5 * Copyright 2005 Wolfson Microelectronics PLC 4 * Copyright 2005 Wolfson Microelectronics PLC.
6 * Author: Liam Girdwood <lrg@slimlogic.co.uk> 5 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
7 * 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 *
8 * Generic AC97 support. 12 * Generic AC97 support.
9 */ 13 */
10 14
11 #include <linux/init.h> 15 #include <linux/init.h>
12 #include <linux/slab.h> 16 #include <linux/slab.h>
13 #include <linux/kernel.h> 17 #include <linux/kernel.h>
14 #include <linux/device.h> 18 #include <linux/device.h>
15 #include <linux/module.h> 19 #include <linux/module.h>
16 #include <sound/core.h> 20 #include <sound/core.h>
17 #include <sound/pcm.h> 21 #include <sound/pcm.h>
18 #include <sound/ac97_codec.h> 22 #include <sound/ac97_codec.h>
19 #include <sound/initval.h> 23 #include <sound/initval.h>
20 #include <sound/soc.h> 24 #include <sound/soc.h>
21 25
22 static const struct snd_soc_dapm_widget ac97_w 26 static const struct snd_soc_dapm_widget ac97_widgets[] = {
23 SND_SOC_DAPM_INPUT("RX"), 27 SND_SOC_DAPM_INPUT("RX"),
24 SND_SOC_DAPM_OUTPUT("TX"), 28 SND_SOC_DAPM_OUTPUT("TX"),
25 }; 29 };
26 30
27 static const struct snd_soc_dapm_route ac97_ro 31 static const struct snd_soc_dapm_route ac97_routes[] = {
28 { "AC97 Capture", NULL, "RX" }, 32 { "AC97 Capture", NULL, "RX" },
29 { "TX", NULL, "AC97 Playback" }, 33 { "TX", NULL, "AC97 Playback" },
30 }; 34 };
31 35
32 static int ac97_prepare(struct snd_pcm_substre 36 static int ac97_prepare(struct snd_pcm_substream *substream,
33 struct snd_soc_dai *da 37 struct snd_soc_dai *dai)
34 { 38 {
35 struct snd_soc_component *component = 39 struct snd_soc_component *component = dai->component;
36 struct snd_ac97 *ac97 = snd_soc_compon 40 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
37 41
38 int reg = (substream->stream == SNDRV_ 42 int reg = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
39 AC97_PCM_FRONT_DAC_RATE : AC 43 AC97_PCM_FRONT_DAC_RATE : AC97_PCM_LR_ADC_RATE;
40 return snd_ac97_set_rate(ac97, reg, su 44 return snd_ac97_set_rate(ac97, reg, substream->runtime->rate);
41 } 45 }
42 46
43 static const struct snd_soc_dai_ops ac97_dai_o 47 static const struct snd_soc_dai_ops ac97_dai_ops = {
44 .prepare = ac97_prepare, 48 .prepare = ac97_prepare,
45 }; 49 };
46 50
47 static struct snd_soc_dai_driver ac97_dai = { 51 static struct snd_soc_dai_driver ac97_dai = {
48 .name = "ac97-hifi", 52 .name = "ac97-hifi",
49 .playback = { 53 .playback = {
50 .stream_name = "AC97 Playback" 54 .stream_name = "AC97 Playback",
51 .channels_min = 1, 55 .channels_min = 1,
52 .channels_max = 2, 56 .channels_max = 2,
53 .rates = SNDRV_PCM_RATE_KNOT, 57 .rates = SNDRV_PCM_RATE_KNOT,
54 .formats = SND_SOC_STD_AC97_FM 58 .formats = SND_SOC_STD_AC97_FMTS,},
55 .capture = { 59 .capture = {
56 .stream_name = "AC97 Capture", 60 .stream_name = "AC97 Capture",
57 .channels_min = 1, 61 .channels_min = 1,
58 .channels_max = 2, 62 .channels_max = 2,
59 .rates = SNDRV_PCM_RATE_KNOT, 63 .rates = SNDRV_PCM_RATE_KNOT,
60 .formats = SND_SOC_STD_AC97_FM 64 .formats = SND_SOC_STD_AC97_FMTS,},
61 .ops = &ac97_dai_ops, 65 .ops = &ac97_dai_ops,
62 }; 66 };
63 67
64 static int ac97_soc_probe(struct snd_soc_compo 68 static int ac97_soc_probe(struct snd_soc_component *component)
65 { 69 {
66 struct snd_ac97 *ac97; 70 struct snd_ac97 *ac97;
67 struct snd_ac97_bus *ac97_bus; 71 struct snd_ac97_bus *ac97_bus;
68 struct snd_ac97_template ac97_template 72 struct snd_ac97_template ac97_template;
69 int ret; 73 int ret;
70 74
71 /* add codec as bus device for standar 75 /* add codec as bus device for standard ac97 */
72 ret = snd_ac97_bus(component->card->sn 76 ret = snd_ac97_bus(component->card->snd_card, 0, soc_ac97_ops,
73 NULL, &ac97_bus); 77 NULL, &ac97_bus);
74 if (ret < 0) 78 if (ret < 0)
75 return ret; 79 return ret;
76 80
77 memset(&ac97_template, 0, sizeof(struc 81 memset(&ac97_template, 0, sizeof(struct snd_ac97_template));
78 ret = snd_ac97_mixer(ac97_bus, &ac97_t 82 ret = snd_ac97_mixer(ac97_bus, &ac97_template, &ac97);
79 if (ret < 0) 83 if (ret < 0)
80 return ret; 84 return ret;
81 85
82 snd_soc_component_set_drvdata(componen 86 snd_soc_component_set_drvdata(component, ac97);
83 87
84 return 0; 88 return 0;
85 } 89 }
86 90
87 #ifdef CONFIG_PM 91 #ifdef CONFIG_PM
88 static int ac97_soc_suspend(struct snd_soc_com 92 static int ac97_soc_suspend(struct snd_soc_component *component)
89 { 93 {
90 struct snd_ac97 *ac97 = snd_soc_compon 94 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
91 95
92 snd_ac97_suspend(ac97); 96 snd_ac97_suspend(ac97);
93 97
94 return 0; 98 return 0;
95 } 99 }
96 100
97 static int ac97_soc_resume(struct snd_soc_comp 101 static int ac97_soc_resume(struct snd_soc_component *component)
98 { 102 {
99 103
100 struct snd_ac97 *ac97 = snd_soc_compon 104 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
101 105
102 snd_ac97_resume(ac97); 106 snd_ac97_resume(ac97);
103 107
104 return 0; 108 return 0;
105 } 109 }
106 #else 110 #else
107 #define ac97_soc_suspend NULL 111 #define ac97_soc_suspend NULL
108 #define ac97_soc_resume NULL 112 #define ac97_soc_resume NULL
109 #endif 113 #endif
110 114
111 static const struct snd_soc_component_driver s 115 static const struct snd_soc_component_driver soc_component_dev_ac97 = {
112 .probe = ac97_soc_pro 116 .probe = ac97_soc_probe,
113 .suspend = ac97_soc_sus 117 .suspend = ac97_soc_suspend,
114 .resume = ac97_soc_res 118 .resume = ac97_soc_resume,
115 .dapm_widgets = ac97_widgets 119 .dapm_widgets = ac97_widgets,
116 .num_dapm_widgets = ARRAY_SIZE(a 120 .num_dapm_widgets = ARRAY_SIZE(ac97_widgets),
117 .dapm_routes = ac97_routes, 121 .dapm_routes = ac97_routes,
118 .num_dapm_routes = ARRAY_SIZE(a 122 .num_dapm_routes = ARRAY_SIZE(ac97_routes),
119 .idle_bias_on = 1, 123 .idle_bias_on = 1,
120 .use_pmdown_time = 1, 124 .use_pmdown_time = 1,
121 .endianness = 1, 125 .endianness = 1,
>> 126 .non_legacy_dai_naming = 1,
122 }; 127 };
123 128
124 static int ac97_probe(struct platform_device * 129 static int ac97_probe(struct platform_device *pdev)
125 { 130 {
126 return devm_snd_soc_register_component 131 return devm_snd_soc_register_component(&pdev->dev,
127 &soc_component_dev_ac9 132 &soc_component_dev_ac97, &ac97_dai, 1);
128 } 133 }
129 134
>> 135 static int ac97_remove(struct platform_device *pdev)
>> 136 {
>> 137 return 0;
>> 138 }
>> 139
130 static struct platform_driver ac97_codec_drive 140 static struct platform_driver ac97_codec_driver = {
131 .driver = { 141 .driver = {
132 .name = "ac97-codec", 142 .name = "ac97-codec",
133 }, 143 },
134 144
135 .probe = ac97_probe, 145 .probe = ac97_probe,
>> 146 .remove = ac97_remove,
136 }; 147 };
137 148
138 module_platform_driver(ac97_codec_driver); 149 module_platform_driver(ac97_codec_driver);
139 150
140 MODULE_DESCRIPTION("Soc Generic AC97 driver"); 151 MODULE_DESCRIPTION("Soc Generic AC97 driver");
141 MODULE_AUTHOR("Liam Girdwood"); 152 MODULE_AUTHOR("Liam Girdwood");
142 MODULE_LICENSE("GPL"); 153 MODULE_LICENSE("GPL");
143 MODULE_ALIAS("platform:ac97-codec"); 154 MODULE_ALIAS("platform:ac97-codec");
144 155
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