1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // Copyright(c) 2021-2022 Intel Corporation. All rights reserved. 4 // 5 // Authors: Cezary Rojewski <cezary.rojewski@intel.com> 6 // Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com> 7 // 8 9 #include <linux/module.h> 10 #include <linux/platform_device.h> 11 #include <sound/core.h> 12 #include <sound/pcm.h> 13 #include <sound/pcm_params.h> 14 #include <sound/soc.h> 15 #include <sound/soc-acpi.h> 16 #include "../../../codecs/nau8825.h" 17 18 #define SKL_SSM_CODEC_DAI "ssm4567-hifi" 19 20 static struct snd_soc_codec_conf card_codec_conf[] = { 21 { 22 .dlc = COMP_CODEC_CONF("i2c-INT343B:00"), 23 .name_prefix = "Left", 24 }, 25 { 26 .dlc = COMP_CODEC_CONF("i2c-INT343B:01"), 27 .name_prefix = "Right", 28 }, 29 }; 30 31 static const struct snd_kcontrol_new card_controls[] = { 32 SOC_DAPM_PIN_SWITCH("Left Speaker"), 33 SOC_DAPM_PIN_SWITCH("Right Speaker"), 34 }; 35 36 static const struct snd_soc_dapm_widget card_widgets[] = { 37 SND_SOC_DAPM_SPK("Left Speaker", NULL), 38 SND_SOC_DAPM_SPK("Right Speaker", NULL), 39 SND_SOC_DAPM_SPK("DP1", NULL), 40 SND_SOC_DAPM_SPK("DP2", NULL), 41 }; 42 43 static const struct snd_soc_dapm_route card_base_routes[] = { 44 {"Left Speaker", NULL, "Left OUT"}, 45 {"Right Speaker", NULL, "Right OUT"}, 46 }; 47 48 static int avs_ssm4567_codec_init(struct snd_soc_pcm_runtime *runtime) 49 { 50 int ret; 51 52 /* Slot 1 for left */ 53 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(runtime, 0), 0x01, 0x01, 2, 48); 54 if (ret < 0) 55 return ret; 56 57 /* Slot 2 for right */ 58 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(runtime, 1), 0x02, 0x02, 2, 48); 59 if (ret < 0) 60 return ret; 61 62 return 0; 63 } 64 65 static int 66 avs_ssm4567_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params) 67 { 68 struct snd_interval *rate, *channels; 69 struct snd_mask *fmt; 70 71 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 72 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 73 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 74 75 /* The ADSP will convert the FE rate to 48k, stereo */ 76 rate->min = rate->max = 48000; 77 channels->min = channels->max = 2; 78 79 /* set SSP0 to 24 bit */ 80 snd_mask_none(fmt); 81 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); 82 return 0; 83 } 84 85 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port, 86 struct snd_soc_dai_link **dai_link) 87 { 88 struct snd_soc_dai_link_component *platform; 89 struct snd_soc_dai_link *dl; 90 91 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL); 92 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL); 93 if (!dl || !platform) 94 return -ENOMEM; 95 96 platform->name = platform_name; 97 98 dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port); 99 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL); 100 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs) * 2, GFP_KERNEL); 101 if (!dl->name || !dl->cpus || !dl->codecs) 102 return -ENOMEM; 103 104 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port); 105 dl->codecs[0].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:00"); 106 dl->codecs[0].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi"); 107 dl->codecs[1].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:01"); 108 dl->codecs[1].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi"); 109 if (!dl->cpus->dai_name || !dl->codecs[0].name || !dl->codecs[0].dai_name || 110 !dl->codecs[1].name || !dl->codecs[1].dai_name) 111 return -ENOMEM; 112 113 dl->num_cpus = 1; 114 dl->num_codecs = 2; 115 dl->platforms = platform; 116 dl->num_platforms = 1; 117 dl->id = 0; 118 dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBS_CFS; 119 dl->init = avs_ssm4567_codec_init; 120 dl->be_hw_params_fixup = avs_ssm4567_be_fixup; 121 dl->nonatomic = 1; 122 dl->no_pcm = 1; 123 dl->dpcm_capture = 1; 124 dl->dpcm_playback = 1; 125 dl->ignore_pmdown_time = 1; 126 127 *dai_link = dl; 128 129 return 0; 130 } 131 132 static int avs_ssm4567_probe(struct platform_device *pdev) 133 { 134 struct snd_soc_dai_link *dai_link; 135 struct snd_soc_acpi_mach *mach; 136 struct snd_soc_card *card; 137 struct device *dev = &pdev->dev; 138 const char *pname; 139 int ssp_port, ret; 140 141 mach = dev_get_platdata(dev); 142 pname = mach->mach_params.platform; 143 ssp_port = __ffs(mach->mach_params.i2s_link_mask); 144 145 ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link); 146 if (ret) { 147 dev_err(dev, "Failed to create dai link: %d", ret); 148 return ret; 149 } 150 151 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 152 if (!card) 153 return -ENOMEM; 154 155 card->name = "avs_ssm4567-adi"; 156 card->dev = dev; 157 card->owner = THIS_MODULE; 158 card->dai_link = dai_link; 159 card->num_links = 1; 160 card->codec_conf = card_codec_conf; 161 card->num_configs = ARRAY_SIZE(card_codec_conf); 162 card->controls = card_controls; 163 card->num_controls = ARRAY_SIZE(card_controls); 164 card->dapm_widgets = card_widgets; 165 card->num_dapm_widgets = ARRAY_SIZE(card_widgets); 166 card->dapm_routes = card_base_routes; 167 card->num_dapm_routes = ARRAY_SIZE(card_base_routes); 168 card->fully_routed = true; 169 card->disable_route_checks = true; 170 171 ret = snd_soc_fixup_dai_links_platform_name(card, pname); 172 if (ret) 173 return ret; 174 175 return devm_snd_soc_register_card(dev, card); 176 } 177 178 static struct platform_driver avs_ssm4567_driver = { 179 .probe = avs_ssm4567_probe, 180 .driver = { 181 .name = "avs_ssm4567", 182 .pm = &snd_soc_pm_ops, 183 }, 184 }; 185 186 module_platform_driver(avs_ssm4567_driver) 187 188 MODULE_LICENSE("GPL"); 189 MODULE_ALIAS("platform:avs_ssm4567"); 190