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 <sound/jack.h> 11#include <sound/pcm.h> 12#include <sound/pcm_params.h> 13#include <sound/soc.h> 14#include <sound/soc-acpi.h> 15#include "../../../codecs/rt274.h" 16 17#define AVS_RT274_FREQ_OUT 24000000 18#define AVS_RT274_BE_FIXUP_RATE 48000 19#define RT274_CODEC_DAI "rt274-aif1" 20 21static const struct snd_kcontrol_new card_controls[] = { 22 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 23 SOC_DAPM_PIN_SWITCH("Mic Jack"), 24}; 25 26static int 27avs_rt274_clock_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *control, int event) 28{ 29 struct snd_soc_dapm_context *dapm = w->dapm; 30 struct snd_soc_card *card = dapm->card; 31 struct snd_soc_dai *codec_dai; 32 int ret; 33 34 codec_dai = snd_soc_card_get_codec_dai(card, RT274_CODEC_DAI); 35 if (!codec_dai) 36 return -EINVAL; 37 38 /* Codec needs clock for Jack detection and button press */ 39 ret = snd_soc_dai_set_sysclk(codec_dai, RT274_SCLK_S_PLL2, AVS_RT274_FREQ_OUT, 40 SND_SOC_CLOCK_IN); 41 if (ret < 0) { 42 dev_err(codec_dai->dev, "set codec sysclk failed: %d\n", ret); 43 return ret; 44 } 45 46 if (SND_SOC_DAPM_EVENT_ON(event)) { 47 int ratio = 100; 48 49 snd_soc_dai_set_bclk_ratio(codec_dai, ratio); 50 51 ret = snd_soc_dai_set_pll(codec_dai, 0, RT274_PLL2_S_BCLK, 52 AVS_RT274_BE_FIXUP_RATE * ratio, AVS_RT274_FREQ_OUT); 53 if (ret) { 54 dev_err(codec_dai->dev, "failed to enable PLL2: %d\n", ret); 55 return ret; 56 } 57 } 58 59 return 0; 60} 61 62static const struct snd_soc_dapm_widget card_widgets[] = { 63 SND_SOC_DAPM_HP("Headphone Jack", NULL), 64 SND_SOC_DAPM_MIC("Mic Jack", NULL), 65 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, avs_rt274_clock_control, 66 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 67}; 68 69static const struct snd_soc_dapm_route card_base_routes[] = { 70 {"Headphone Jack", NULL, "HPO Pin"}, 71 {"MIC", NULL, "Mic Jack"}, 72 73 {"Headphone Jack", NULL, "Platform Clock"}, 74 {"MIC", NULL, "Platform Clock"}, 75}; 76 77static struct snd_soc_jack_pin card_headset_pins[] = { 78 { 79 .pin = "Headphone Jack", 80 .mask = SND_JACK_HEADPHONE, 81 }, 82 { 83 .pin = "Mic Jack", 84 .mask = SND_JACK_MICROPHONE, 85 }, 86}; 87 88static int avs_rt274_codec_init(struct snd_soc_pcm_runtime *runtime) 89{ 90 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0); 91 struct snd_soc_component *component = codec_dai->component; 92 struct snd_soc_jack_pin *pins; 93 struct snd_soc_jack *jack; 94 struct snd_soc_card *card = runtime->card; 95 int num_pins, ret; 96 97 jack = snd_soc_card_get_drvdata(card); 98 num_pins = ARRAY_SIZE(card_headset_pins); 99 100 pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL); 101 if (!pins) 102 return -ENOMEM; 103 104 ret = snd_soc_card_jack_new_pins(card, "Headset", SND_JACK_HEADSET, jack, pins, num_pins); 105 if (ret) 106 return ret; 107 108 snd_soc_component_set_jack(component, jack, NULL); 109 110 /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ 111 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24); 112 if (ret < 0) { 113 dev_err(card->dev, "can't set codec pcm format %d\n", ret); 114 return ret; 115 } 116 117 card->dapm.idle_bias_off = true; 118 119 return 0; 120} 121 122static void avs_rt274_codec_exit(struct snd_soc_pcm_runtime *rtd) 123{ 124 snd_soc_component_set_jack(asoc_rtd_to_codec(rtd, 0)->component, NULL, NULL); 125} 126 127static int avs_rt274_be_fixup(struct snd_soc_pcm_runtime *runtime, struct snd_pcm_hw_params *params) 128{ 129 struct snd_interval *rate, *channels; 130 struct snd_mask *fmt; 131 132 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 133 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 134 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 135 136 /* The ADSP will convert the FE rate to 48k, stereo */ 137 rate->min = rate->max = AVS_RT274_BE_FIXUP_RATE; 138 channels->min = channels->max = 2; 139 140 /* set SSPN to 24 bit */ 141 snd_mask_none(fmt); 142 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); 143 144 return 0; 145} 146 147static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port, 148 struct snd_soc_dai_link **dai_link) 149{ 150 struct snd_soc_dai_link_component *platform; 151 struct snd_soc_dai_link *dl; 152 153 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL); 154 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL); 155 if (!dl || !platform) 156 return -ENOMEM; 157 158 platform->name = platform_name; 159 160 dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port); 161 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL); 162 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL); 163 if (!dl->name || !dl->cpus || !dl->codecs) 164 return -ENOMEM; 165 166 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port); 167 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT34C2:00"); 168 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, RT274_CODEC_DAI); 169 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name) 170 return -ENOMEM; 171 172 dl->num_cpus = 1; 173 dl->num_codecs = 1; 174 dl->platforms = platform; 175 dl->num_platforms = 1; 176 dl->id = 0; 177 dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS; 178 dl->init = avs_rt274_codec_init; 179 dl->exit = avs_rt274_codec_exit; 180 dl->be_hw_params_fixup = avs_rt274_be_fixup; 181 dl->nonatomic = 1; 182 dl->no_pcm = 1; 183 dl->dpcm_capture = 1; 184 dl->dpcm_playback = 1; 185 186 *dai_link = dl; 187 188 return 0; 189} 190 191static int avs_card_suspend_pre(struct snd_soc_card *card) 192{ 193 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT274_CODEC_DAI); 194 195 return snd_soc_component_set_jack(codec_dai->component, NULL, NULL); 196} 197 198static int avs_card_resume_post(struct snd_soc_card *card) 199{ 200 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT274_CODEC_DAI); 201 struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card); 202 203 return snd_soc_component_set_jack(codec_dai->component, jack, NULL); 204} 205 206static int avs_rt274_probe(struct platform_device *pdev) 207{ 208 struct snd_soc_dai_link *dai_link; 209 struct snd_soc_acpi_mach *mach; 210 struct snd_soc_card *card; 211 struct snd_soc_jack *jack; 212 struct device *dev = &pdev->dev; 213 const char *pname; 214 int ssp_port, ret; 215 216 mach = dev_get_platdata(dev); 217 pname = mach->mach_params.platform; 218 ssp_port = __ffs(mach->mach_params.i2s_link_mask); 219 220 ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link); 221 if (ret) { 222 dev_err(dev, "Failed to create dai link: %d", ret); 223 return ret; 224 } 225 226 jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL); 227 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 228 if (!jack || !card) 229 return -ENOMEM; 230 231 card->name = "avs_rt274"; 232 card->dev = dev; 233 card->owner = THIS_MODULE; 234 card->suspend_pre = avs_card_suspend_pre; 235 card->resume_post = avs_card_resume_post; 236 card->dai_link = dai_link; 237 card->num_links = 1; 238 card->controls = card_controls; 239 card->num_controls = ARRAY_SIZE(card_controls); 240 card->dapm_widgets = card_widgets; 241 card->num_dapm_widgets = ARRAY_SIZE(card_widgets); 242 card->dapm_routes = card_base_routes; 243 card->num_dapm_routes = ARRAY_SIZE(card_base_routes); 244 card->fully_routed = true; 245 snd_soc_card_set_drvdata(card, jack); 246 247 ret = snd_soc_fixup_dai_links_platform_name(card, pname); 248 if (ret) 249 return ret; 250 251 return devm_snd_soc_register_card(dev, card); 252} 253 254static struct platform_driver avs_rt274_driver = { 255 .probe = avs_rt274_probe, 256 .driver = { 257 .name = "avs_rt274", 258 .pm = &snd_soc_pm_ops, 259 }, 260}; 261 262module_platform_driver(avs_rt274_driver); 263 264MODULE_LICENSE("GPL"); 265MODULE_ALIAS("platform:avs_rt274"); 266