1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // Copyright(c) 2021-2022 Intel Corporation 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 #include "../utils.h" 18 19 #define SKL_SSM_CODEC_DAI "ssm4567-hifi" 20 21 static struct snd_soc_codec_conf card_codec_conf[] = { 22 { 23 .dlc = COMP_CODEC_CONF("i2c-INT343B:00"), 24 .name_prefix = "Left", 25 }, 26 { 27 .dlc = COMP_CODEC_CONF("i2c-INT343B:01"), 28 .name_prefix = "Right", 29 }, 30 }; 31 32 static const struct snd_kcontrol_new card_controls[] = { 33 SOC_DAPM_PIN_SWITCH("Left Speaker"), 34 SOC_DAPM_PIN_SWITCH("Right Speaker"), 35 }; 36 37 static const struct snd_soc_dapm_widget card_widgets[] = { 38 SND_SOC_DAPM_SPK("Left Speaker", NULL), 39 SND_SOC_DAPM_SPK("Right Speaker", NULL), 40 }; 41 42 static const struct snd_soc_dapm_route card_base_routes[] = { 43 {"Left Speaker", NULL, "Left OUT"}, 44 {"Right Speaker", NULL, "Right OUT"}, 45 }; 46 47 static int avs_ssm4567_codec_init(struct snd_soc_pcm_runtime *runtime) 48 { 49 int ret; 50 51 /* Slot 1 for left */ 52 ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_codec(runtime, 0), 0x01, 0x01, 2, 48); 53 if (ret < 0) 54 return ret; 55 56 /* Slot 2 for right */ 57 ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_codec(runtime, 1), 0x02, 0x02, 2, 48); 58 if (ret < 0) 59 return ret; 60 61 return 0; 62 } 63 64 static int 65 avs_ssm4567_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params) 66 { 67 struct snd_interval *rate, *channels; 68 struct snd_mask *fmt; 69 70 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 71 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 72 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 73 74 /* The ADSP will convert the FE rate to 48k, stereo */ 75 rate->min = rate->max = 48000; 76 channels->min = channels->max = 2; 77 78 /* set SSP0 to 24 bit */ 79 snd_mask_none(fmt); 80 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); 81 return 0; 82 } 83 84 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port, 85 int tdm_slot, struct snd_soc_dai_link **dai_link) 86 { 87 struct snd_soc_dai_link_component *platform; 88 struct snd_soc_dai_link *dl; 89 90 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL); 91 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL); 92 if (!dl || !platform) 93 return -ENOMEM; 94 95 platform->name = platform_name; 96 97 dl->name = devm_kasprintf(dev, GFP_KERNEL, 98 AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot)); 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, 105 AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot)); 106 dl->codecs[0].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:00"); 107 dl->codecs[0].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi"); 108 dl->codecs[1].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:01"); 109 dl->codecs[1].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi"); 110 if (!dl->cpus->dai_name || !dl->codecs[0].name || !dl->codecs[0].dai_name || 111 !dl->codecs[1].name || !dl->codecs[1].dai_name) 112 return -ENOMEM; 113 114 dl->num_cpus = 1; 115 dl->num_codecs = 2; 116 dl->platforms = platform; 117 dl->num_platforms = 1; 118 dl->id = 0; 119 dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBS_CFS; 120 dl->init = avs_ssm4567_codec_init; 121 dl->be_hw_params_fixup = avs_ssm4567_be_fixup; 122 dl->nonatomic = 1; 123 dl->no_pcm = 1; 124 dl->dpcm_capture = 1; 125 dl->dpcm_playback = 1; 126 dl->ignore_pmdown_time = 1; 127 128 *dai_link = dl; 129 130 return 0; 131 } 132 133 static int avs_ssm4567_probe(struct platform_device *pdev) 134 { 135 struct snd_soc_dai_link *dai_link; 136 struct snd_soc_acpi_mach *mach; 137 struct snd_soc_card *card; 138 struct device *dev = &pdev->dev; 139 const char *pname; 140 int ssp_port, tdm_slot, ret; 141 142 mach = dev_get_platdata(dev); 143 pname = mach->mach_params.platform; 144 145 ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot); 146 if (ret) 147 return ret; 148 149 ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link); 150 if (ret) { 151 dev_err(dev, "Failed to create dai link: %d", ret); 152 return ret; 153 } 154 155 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 156 if (!card) 157 return -ENOMEM; 158 159 card->name = "avs_ssm4567"; 160 card->dev = dev; 161 card->owner = THIS_MODULE; 162 card->dai_link = dai_link; 163 card->num_links = 1; 164 card->codec_conf = card_codec_conf; 165 card->num_configs = ARRAY_SIZE(card_codec_conf); 166 card->controls = card_controls; 167 card->num_controls = ARRAY_SIZE(card_controls); 168 card->dapm_widgets = card_widgets; 169 card->num_dapm_widgets = ARRAY_SIZE(card_widgets); 170 card->dapm_routes = card_base_routes; 171 card->num_dapm_routes = ARRAY_SIZE(card_base_routes); 172 card->fully_routed = true; 173 174 ret = snd_soc_fixup_dai_links_platform_name(card, pname); 175 if (ret) 176 return ret; 177 178 return devm_snd_soc_register_card(dev, card); 179 } 180 181 static const struct platform_device_id avs_ssm4567_driver_ids[] = { 182 { 183 .name = "avs_ssm4567", 184 }, 185 {}, 186 }; 187 MODULE_DEVICE_TABLE(platform, avs_ssm4567_driver_ids); 188 189 static struct platform_driver avs_ssm4567_driver = { 190 .probe = avs_ssm4567_probe, 191 .driver = { 192 .name = "avs_ssm4567", 193 .pm = &snd_soc_pm_ops, 194 }, 195 .id_table = avs_ssm4567_driver_ids, 196 }; 197 198 module_platform_driver(avs_ssm4567_driver) 199 200 MODULE_DESCRIPTION("Intel ssm4567 machine driver"); 201 MODULE_LICENSE("GPL"); 202