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 SND_SOC_DAILINK_DEFS(cpu, 86 DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")), 87 DAILINK_COMP_ARRAY(COMP_CODEC("wm5100.1-001a", "wm5100-aif1")), 88 DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0"))); 89 90 SND_SOC_DAILINK_DEFS(baseband, 91 DAILINK_COMP_ARRAY(COMP_CPU("wm5100-aif2")), 92 DAILINK_COMP_ARRAY(COMP_CODEC("wm1250-ev1.1-0027", "wm1250-ev1"))); 93 94 SND_SOC_DAILINK_DEFS(speaker, 95 DAILINK_COMP_ARRAY(COMP_CPU("wm5100-aif3")), 96 DAILINK_COMP_ARRAY(COMP_CODEC("wm9081.1-006c", "wm9081-hifi"))); 97 98 static struct snd_soc_dai_link lowland_dai[] = { 99 { 100 .name = "CPU", 101 .stream_name = "CPU", 102 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 103 SND_SOC_DAIFMT_CBM_CFM, 104 .init = lowland_wm5100_init, 105 SND_SOC_DAILINK_REG(cpu), 106 }, 107 { 108 .name = "Baseband", 109 .stream_name = "Baseband", 110 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 111 SND_SOC_DAIFMT_CBM_CFM, 112 .ignore_suspend = 1, 113 SND_SOC_DAILINK_REG(baseband), 114 }, 115 { 116 .name = "Sub Speaker", 117 .stream_name = "Sub Speaker", 118 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 119 SND_SOC_DAIFMT_CBM_CFM, 120 .ignore_suspend = 1, 121 .params = &sub_params, 122 .init = lowland_wm9081_init, 123 SND_SOC_DAILINK_REG(speaker), 124 }, 125 }; 126 127 static struct snd_soc_codec_conf lowland_codec_conf[] = { 128 { 129 .dlc = COMP_CODEC_CONF("wm9081.1-006c"), 130 .name_prefix = "Sub", 131 }, 132 }; 133 134 static const struct snd_kcontrol_new controls[] = { 135 SOC_DAPM_PIN_SWITCH("Main Speaker"), 136 SOC_DAPM_PIN_SWITCH("Main DMIC"), 137 SOC_DAPM_PIN_SWITCH("Main AMIC"), 138 SOC_DAPM_PIN_SWITCH("WM1250 Input"), 139 SOC_DAPM_PIN_SWITCH("WM1250 Output"), 140 SOC_DAPM_PIN_SWITCH("Headphone"), 141 }; 142 143 static struct snd_soc_dapm_widget widgets[] = { 144 SND_SOC_DAPM_HP("Headphone", NULL), 145 SND_SOC_DAPM_MIC("Headset Mic", NULL), 146 147 SND_SOC_DAPM_SPK("Main Speaker", NULL), 148 149 SND_SOC_DAPM_MIC("Main AMIC", NULL), 150 SND_SOC_DAPM_MIC("Main DMIC", NULL), 151 }; 152 153 static struct snd_soc_dapm_route audio_paths[] = { 154 { "Sub IN1", NULL, "HPOUT2L" }, 155 { "Sub IN2", NULL, "HPOUT2R" }, 156 157 { "Main Speaker", NULL, "Sub SPKN" }, 158 { "Main Speaker", NULL, "Sub SPKP" }, 159 { "Main Speaker", NULL, "SPKDAT1" }, 160 }; 161 162 static struct snd_soc_card lowland = { 163 .name = "Lowland", 164 .owner = THIS_MODULE, 165 .dai_link = lowland_dai, 166 .num_links = ARRAY_SIZE(lowland_dai), 167 .codec_conf = lowland_codec_conf, 168 .num_configs = ARRAY_SIZE(lowland_codec_conf), 169 170 .controls = controls, 171 .num_controls = ARRAY_SIZE(controls), 172 .dapm_widgets = widgets, 173 .num_dapm_widgets = ARRAY_SIZE(widgets), 174 .dapm_routes = audio_paths, 175 .num_dapm_routes = ARRAY_SIZE(audio_paths), 176 }; 177 178 static int lowland_probe(struct platform_device *pdev) 179 { 180 struct snd_soc_card *card = &lowland; 181 int ret; 182 183 card->dev = &pdev->dev; 184 185 ret = devm_snd_soc_register_card(&pdev->dev, card); 186 if (ret) 187 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", 188 ret); 189 190 return ret; 191 } 192 193 static struct platform_driver lowland_driver = { 194 .driver = { 195 .name = "lowland", 196 .pm = &snd_soc_pm_ops, 197 }, 198 .probe = lowland_probe, 199 }; 200 201 module_platform_driver(lowland_driver); 202 203 MODULE_DESCRIPTION("Lowland audio support"); 204 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 205 MODULE_LICENSE("GPL"); 206 MODULE_ALIAS("platform:lowland"); 207