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_NUVOTON_CODEC_DAI "nau8825-hifi" 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 int 38 platform_clock_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *control, int event) 39 { 40 struct snd_soc_dapm_context *dapm = w->dapm; 41 struct snd_soc_card *card = dapm->card; 42 struct snd_soc_dai *codec_dai; 43 int ret; 44 45 codec_dai = snd_soc_card_get_codec_dai(card, SKL_NUVOTON_CODEC_DAI); 46 if (!codec_dai) { 47 dev_err(card->dev, "Codec dai not found\n"); 48 return -EINVAL; 49 } 50 51 if (SND_SOC_DAPM_EVENT_ON(event)) { 52 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_MCLK, 24000000, 53 SND_SOC_CLOCK_IN); 54 if (ret < 0) 55 dev_err(card->dev, "set sysclk err = %d\n", ret); 56 } else { 57 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN); 58 if (ret < 0) 59 dev_err(card->dev, "set sysclk err = %d\n", ret); 60 } 61 62 return ret; 63 } 64 65 static const struct snd_soc_dapm_widget card_widgets[] = { 66 SND_SOC_DAPM_SPK("Left Speaker", NULL), 67 SND_SOC_DAPM_SPK("Right Speaker", NULL), 68 SND_SOC_DAPM_SPK("DP1", NULL), 69 SND_SOC_DAPM_SPK("DP2", NULL), 70 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, platform_clock_control, 71 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 72 }; 73 74 static const struct snd_soc_dapm_route card_base_routes[] = { 75 {"Left Speaker", NULL, "Left OUT"}, 76 {"Right Speaker", NULL, "Right OUT"}, 77 }; 78 79 static int avs_ssm4567_codec_init(struct snd_soc_pcm_runtime *runtime) 80 { 81 int ret; 82 83 /* Slot 1 for left */ 84 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(runtime, 0), 0x01, 0x01, 2, 48); 85 if (ret < 0) 86 return ret; 87 88 /* Slot 2 for right */ 89 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(runtime, 1), 0x02, 0x02, 2, 48); 90 if (ret < 0) 91 return ret; 92 93 return 0; 94 } 95 96 static int 97 avs_ssm4567_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params) 98 { 99 struct snd_interval *rate, *channels; 100 struct snd_mask *fmt; 101 102 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 103 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 104 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 105 106 /* The ADSP will convert the FE rate to 48k, stereo */ 107 rate->min = rate->max = 48000; 108 channels->min = channels->max = 2; 109 110 /* set SSP0 to 24 bit */ 111 snd_mask_none(fmt); 112 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); 113 return 0; 114 } 115 116 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port, 117 struct snd_soc_dai_link **dai_link) 118 { 119 struct snd_soc_dai_link_component *platform; 120 struct snd_soc_dai_link *dl; 121 122 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL); 123 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL); 124 if (!dl || !platform) 125 return -ENOMEM; 126 127 platform->name = platform_name; 128 129 dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port); 130 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL); 131 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs) * 2, GFP_KERNEL); 132 if (!dl->name || !dl->cpus || !dl->codecs) 133 return -ENOMEM; 134 135 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port); 136 dl->codecs[0].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:00"); 137 dl->codecs[0].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi"); 138 dl->codecs[1].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:01"); 139 dl->codecs[1].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi"); 140 if (!dl->cpus->dai_name || !dl->codecs[0].name || !dl->codecs[0].dai_name || 141 !dl->codecs[1].name || !dl->codecs[1].dai_name) 142 return -ENOMEM; 143 144 dl->num_cpus = 1; 145 dl->num_codecs = 2; 146 dl->platforms = platform; 147 dl->num_platforms = 1; 148 dl->id = 0; 149 dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBS_CFS; 150 dl->init = avs_ssm4567_codec_init; 151 dl->be_hw_params_fixup = avs_ssm4567_be_fixup; 152 dl->nonatomic = 1; 153 dl->no_pcm = 1; 154 dl->dpcm_capture = 1; 155 dl->dpcm_playback = 1; 156 dl->ignore_pmdown_time = 1; 157 158 *dai_link = dl; 159 160 return 0; 161 } 162 163 static int avs_create_dapm_routes(struct device *dev, int ssp_port, 164 struct snd_soc_dapm_route **routes, int *num_routes) 165 { 166 struct snd_soc_dapm_route *dr; 167 const int num_base = ARRAY_SIZE(card_base_routes); 168 const int num_dr = num_base + 4; 169 int idx; 170 171 dr = devm_kcalloc(dev, num_dr, sizeof(*dr), GFP_KERNEL); 172 if (!dr) 173 return -ENOMEM; 174 175 memcpy(dr, card_base_routes, num_base * sizeof(*dr)); 176 177 idx = num_base; 178 dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "Left Playback"); 179 dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Tx", ssp_port); 180 if (!dr[idx].sink || !dr[idx].source) 181 return -ENOMEM; 182 183 idx++; 184 dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "Right Playback"); 185 dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Tx", ssp_port); 186 if (!dr[idx].sink || !dr[idx].source) 187 return -ENOMEM; 188 189 idx++; 190 dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Rx", ssp_port); 191 dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "Left Capture Sense"); 192 if (!dr[idx].sink || !dr[idx].source) 193 return -ENOMEM; 194 195 idx++; 196 dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Rx", ssp_port); 197 dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "Right Capture Sense"); 198 if (!dr[idx].sink || !dr[idx].source) 199 return -ENOMEM; 200 201 *routes = dr; 202 *num_routes = num_dr; 203 204 return 0; 205 } 206 207 static int avs_ssm4567_probe(struct platform_device *pdev) 208 { 209 struct snd_soc_dapm_route *routes; 210 struct snd_soc_dai_link *dai_link; 211 struct snd_soc_acpi_mach *mach; 212 struct snd_soc_card *card; 213 struct device *dev = &pdev->dev; 214 const char *pname; 215 int num_routes, ssp_port, ret; 216 217 mach = dev_get_platdata(dev); 218 pname = mach->mach_params.platform; 219 ssp_port = __ffs(mach->mach_params.i2s_link_mask); 220 221 ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link); 222 if (ret) { 223 dev_err(dev, "Failed to create dai link: %d", ret); 224 return ret; 225 } 226 227 ret = avs_create_dapm_routes(dev, ssp_port, &routes, &num_routes); 228 if (ret) { 229 dev_err(dev, "Failed to create dapm routes: %d", ret); 230 return ret; 231 } 232 233 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 234 if (!card) 235 return -ENOMEM; 236 237 card->name = "avs_ssm4567-adi"; 238 card->dev = dev; 239 card->owner = THIS_MODULE; 240 card->dai_link = dai_link; 241 card->num_links = 1; 242 card->codec_conf = card_codec_conf; 243 card->num_configs = ARRAY_SIZE(card_codec_conf); 244 card->controls = card_controls; 245 card->num_controls = ARRAY_SIZE(card_controls); 246 card->dapm_widgets = card_widgets; 247 card->num_dapm_widgets = ARRAY_SIZE(card_widgets); 248 card->dapm_routes = routes; 249 card->num_dapm_routes = num_routes; 250 card->fully_routed = true; 251 card->disable_route_checks = true; 252 253 ret = snd_soc_fixup_dai_links_platform_name(card, pname); 254 if (ret) 255 return ret; 256 257 return devm_snd_soc_register_card(dev, card); 258 } 259 260 static struct platform_driver avs_ssm4567_driver = { 261 .probe = avs_ssm4567_probe, 262 .driver = { 263 .name = "avs_ssm4567", 264 .pm = &snd_soc_pm_ops, 265 }, 266 }; 267 268 module_platform_driver(avs_ssm4567_driver) 269 270 MODULE_LICENSE("GPL"); 271 MODULE_ALIAS("platform:avs_ssm4567"); 272