1 // SPDX-License-Identifier: GPL-2.0+ 2 // 3 // Lowland audio support 4 // 5 // Copyright 2011 Wolfson Microelectronics 6 7 #include <sound/soc.h> 8 #include <sound/soc-dapm.h> 9 #include <sound/jack.h> 10 #include <linux/gpio.h> 11 #include <linux/module.h> 12 13 #include "../codecs/wm5100.h" 14 #include "../codecs/wm9081.h" 15 16 #define MCLK1_RATE (44100 * 512) 17 #define CLKOUT_RATE (44100 * 256) 18 19 static struct snd_soc_jack lowland_headset; 20 21 /* Headset jack detection DAPM pins */ 22 static struct snd_soc_jack_pin lowland_headset_pins[] = { 23 { 24 .pin = "Headphone", 25 .mask = SND_JACK_HEADPHONE | SND_JACK_LINEOUT, 26 }, 27 { 28 .pin = "Headset Mic", 29 .mask = SND_JACK_MICROPHONE, 30 }, 31 }; 32 33 static int lowland_wm5100_init(struct snd_soc_pcm_runtime *rtd) 34 { 35 struct snd_soc_component *component = rtd->codec_dai->component; 36 int ret; 37 38 ret = snd_soc_component_set_sysclk(component, WM5100_CLK_SYSCLK, 39 WM5100_CLKSRC_MCLK1, MCLK1_RATE, 40 SND_SOC_CLOCK_IN); 41 if (ret < 0) { 42 pr_err("Failed to set SYSCLK clock source: %d\n", ret); 43 return ret; 44 } 45 46 /* Clock OPCLK, used by the other audio components. */ 47 ret = snd_soc_component_set_sysclk(component, WM5100_CLK_OPCLK, 0, 48 CLKOUT_RATE, 0); 49 if (ret < 0) { 50 pr_err("Failed to set OPCLK rate: %d\n", ret); 51 return ret; 52 } 53 54 ret = snd_soc_card_jack_new(rtd->card, "Headset", SND_JACK_LINEOUT | 55 SND_JACK_HEADSET | SND_JACK_BTN_0, 56 &lowland_headset, lowland_headset_pins, 57 ARRAY_SIZE(lowland_headset_pins)); 58 if (ret) 59 return ret; 60 61 wm5100_detect(component, &lowland_headset); 62 63 return 0; 64 } 65 66 static int lowland_wm9081_init(struct snd_soc_pcm_runtime *rtd) 67 { 68 struct snd_soc_component *component = rtd->codec_dai->component; 69 70 snd_soc_dapm_nc_pin(&rtd->card->dapm, "LINEOUT"); 71 72 /* At any time the WM9081 is active it will have this clock */ 73 return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0, 74 CLKOUT_RATE, 0); 75 } 76 77 static const struct snd_soc_pcm_stream sub_params = { 78 .formats = SNDRV_PCM_FMTBIT_S32_LE, 79 .rate_min = 44100, 80 .rate_max = 44100, 81 .channels_min = 2, 82 .channels_max = 2, 83 }; 84 85 static struct snd_soc_dai_link lowland_dai[] = { 86 { 87 .name = "CPU", 88 .stream_name = "CPU", 89 .cpu_dai_name = "samsung-i2s.0", 90 .codec_dai_name = "wm5100-aif1", 91 .platform_name = "samsung-i2s.0", 92 .codec_name = "wm5100.1-001a", 93 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 94 SND_SOC_DAIFMT_CBM_CFM, 95 .init = lowland_wm5100_init, 96 }, 97 { 98 .name = "Baseband", 99 .stream_name = "Baseband", 100 .cpu_dai_name = "wm5100-aif2", 101 .codec_dai_name = "wm1250-ev1", 102 .codec_name = "wm1250-ev1.1-0027", 103 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 104 SND_SOC_DAIFMT_CBM_CFM, 105 .ignore_suspend = 1, 106 }, 107 { 108 .name = "Sub Speaker", 109 .stream_name = "Sub Speaker", 110 .cpu_dai_name = "wm5100-aif3", 111 .codec_dai_name = "wm9081-hifi", 112 .codec_name = "wm9081.1-006c", 113 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 114 SND_SOC_DAIFMT_CBM_CFM, 115 .ignore_suspend = 1, 116 .params = &sub_params, 117 .init = lowland_wm9081_init, 118 }, 119 }; 120 121 static struct snd_soc_codec_conf lowland_codec_conf[] = { 122 { 123 .dev_name = "wm9081.1-006c", 124 .name_prefix = "Sub", 125 }, 126 }; 127 128 static const struct snd_kcontrol_new controls[] = { 129 SOC_DAPM_PIN_SWITCH("Main Speaker"), 130 SOC_DAPM_PIN_SWITCH("Main DMIC"), 131 SOC_DAPM_PIN_SWITCH("Main AMIC"), 132 SOC_DAPM_PIN_SWITCH("WM1250 Input"), 133 SOC_DAPM_PIN_SWITCH("WM1250 Output"), 134 SOC_DAPM_PIN_SWITCH("Headphone"), 135 }; 136 137 static struct snd_soc_dapm_widget widgets[] = { 138 SND_SOC_DAPM_HP("Headphone", NULL), 139 SND_SOC_DAPM_MIC("Headset Mic", NULL), 140 141 SND_SOC_DAPM_SPK("Main Speaker", NULL), 142 143 SND_SOC_DAPM_MIC("Main AMIC", NULL), 144 SND_SOC_DAPM_MIC("Main DMIC", NULL), 145 }; 146 147 static struct snd_soc_dapm_route audio_paths[] = { 148 { "Sub IN1", NULL, "HPOUT2L" }, 149 { "Sub IN2", NULL, "HPOUT2R" }, 150 151 { "Main Speaker", NULL, "Sub SPKN" }, 152 { "Main Speaker", NULL, "Sub SPKP" }, 153 { "Main Speaker", NULL, "SPKDAT1" }, 154 }; 155 156 static struct snd_soc_card lowland = { 157 .name = "Lowland", 158 .owner = THIS_MODULE, 159 .dai_link = lowland_dai, 160 .num_links = ARRAY_SIZE(lowland_dai), 161 .codec_conf = lowland_codec_conf, 162 .num_configs = ARRAY_SIZE(lowland_codec_conf), 163 164 .controls = controls, 165 .num_controls = ARRAY_SIZE(controls), 166 .dapm_widgets = widgets, 167 .num_dapm_widgets = ARRAY_SIZE(widgets), 168 .dapm_routes = audio_paths, 169 .num_dapm_routes = ARRAY_SIZE(audio_paths), 170 }; 171 172 static int lowland_probe(struct platform_device *pdev) 173 { 174 struct snd_soc_card *card = &lowland; 175 int ret; 176 177 card->dev = &pdev->dev; 178 179 ret = devm_snd_soc_register_card(&pdev->dev, card); 180 if (ret) 181 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", 182 ret); 183 184 return ret; 185 } 186 187 static struct platform_driver lowland_driver = { 188 .driver = { 189 .name = "lowland", 190 .pm = &snd_soc_pm_ops, 191 }, 192 .probe = lowland_probe, 193 }; 194 195 module_platform_driver(lowland_driver); 196 197 MODULE_DESCRIPTION("Lowland audio support"); 198 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 199 MODULE_LICENSE("GPL"); 200 MODULE_ALIAS("platform:lowland"); 201