1 // SPDX-License-Identifier: GPL-2.0-only
3 * cht-bsw-nau8824.c - ASoc Machine driver for Intel Cherryview-based
4 * platforms Cherrytrail and Braswell, with nau8824 codec.
6 * Copyright (C) 2018 Intel Corp
7 * Copyright (C) 2018 Nuvoton Technology Corp
9 * Author: Wang, Joseph C <joequant@gmail.com>
10 * Co-author: John Hsu <KCHSU0@nuvoton.com>
11 * This file is based on cht_bsw_rt5672.c and cht-bsw-max98090.c
14 #include <linux/module.h>
15 #include <linux/platform_device.h>
16 #include <linux/slab.h>
17 #include <sound/pcm.h>
18 #include <sound/pcm_params.h>
19 #include <sound/soc.h>
20 #include <sound/soc-acpi.h>
21 #include <sound/jack.h>
22 #include <linux/input.h>
23 #include "../atom/sst-atom-controls.h"
24 #include "../../codecs/nau8824.h"
26 struct cht_mc_private {
27 struct snd_soc_jack jack;
30 static struct snd_soc_jack_pin cht_bsw_jack_pins[] = {
33 .mask = SND_JACK_HEADPHONE,
37 .mask = SND_JACK_MICROPHONE,
41 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
42 SND_SOC_DAPM_HP("Headphone", NULL),
43 SND_SOC_DAPM_MIC("Headset Mic", NULL),
44 SND_SOC_DAPM_MIC("Int Mic", NULL),
45 SND_SOC_DAPM_SPK("Ext Spk", NULL),
48 static const struct snd_soc_dapm_route cht_audio_map[] = {
49 {"Ext Spk", NULL, "SPKOUTL"},
50 {"Ext Spk", NULL, "SPKOUTR"},
51 {"Headphone", NULL, "HPOL"},
52 {"Headphone", NULL, "HPOR"},
53 {"MIC1", NULL, "Int Mic"},
54 {"MIC2", NULL, "Int Mic"},
55 {"HSMIC1", NULL, "Headset Mic"},
56 {"HSMIC2", NULL, "Headset Mic"},
57 {"Playback", NULL, "ssp2 Tx"},
58 {"ssp2 Tx", NULL, "codec_out0"},
59 {"ssp2 Tx", NULL, "codec_out1"},
60 {"codec_in0", NULL, "ssp2 Rx" },
61 {"codec_in1", NULL, "ssp2 Rx" },
62 {"ssp2 Rx", NULL, "Capture"},
65 static const struct snd_kcontrol_new cht_mc_controls[] = {
66 SOC_DAPM_PIN_SWITCH("Headphone"),
67 SOC_DAPM_PIN_SWITCH("Headset Mic"),
68 SOC_DAPM_PIN_SWITCH("Int Mic"),
69 SOC_DAPM_PIN_SWITCH("Ext Spk"),
72 static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
73 struct snd_pcm_hw_params *params)
75 struct snd_soc_pcm_runtime *rtd = substream->private_data;
76 struct snd_soc_dai *codec_dai = rtd->codec_dai;
79 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8824_CLK_FLL_FS, 0,
82 dev_err(codec_dai->dev, "can't set FS clock %d\n", ret);
85 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, params_rate(params),
86 params_rate(params) * 256);
88 dev_err(codec_dai->dev, "can't set FLL: %d\n", ret);
95 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
97 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
98 struct snd_soc_jack *jack = &ctx->jack;
99 struct snd_soc_dai *codec_dai = runtime->codec_dai;
100 struct snd_soc_component *component = codec_dai->component;
103 /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */
104 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xf, 0x1, 4, 24);
106 dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret);
110 /* NAU88L24 supports 4 butons headset detection
116 jack_type = SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
117 SND_JACK_BTN_2 | SND_JACK_BTN_3;
118 ret = snd_soc_card_jack_new(runtime->card, "Headset", jack_type, jack,
119 cht_bsw_jack_pins, ARRAY_SIZE(cht_bsw_jack_pins));
121 dev_err(runtime->dev,
122 "Headset Jack creation failed %d\n", ret);
125 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA);
126 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
127 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
128 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
130 nau8824_enable_jack_detect(component, jack);
135 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
136 struct snd_pcm_hw_params *params)
138 struct snd_interval *rate = hw_param_interval(params,
139 SNDRV_PCM_HW_PARAM_RATE);
140 struct snd_interval *channels = hw_param_interval(params,
141 SNDRV_PCM_HW_PARAM_CHANNELS);
142 struct snd_mask *fmt =
143 hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
145 /* The DSP will covert the FE rate to 48k, stereo, 24bits */
146 rate->min = rate->max = 48000;
147 channels->min = channels->max = 2;
149 /* set SSP2 to 24-bit */
151 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
156 static int cht_aif1_startup(struct snd_pcm_substream *substream)
158 return snd_pcm_hw_constraint_single(substream->runtime,
159 SNDRV_PCM_HW_PARAM_RATE, 48000);
162 static const struct snd_soc_ops cht_aif1_ops = {
163 .startup = cht_aif1_startup,
166 static const struct snd_soc_ops cht_be_ssp2_ops = {
167 .hw_params = cht_aif1_hw_params,
170 static struct snd_soc_dai_link cht_dailink[] = {
171 /* Front End DAI links */
172 [MERR_DPCM_AUDIO] = {
173 .name = "Audio Port",
174 .stream_name = "Audio",
175 .cpu_dai_name = "media-cpu-dai",
176 .codec_dai_name = "snd-soc-dummy-dai",
177 .codec_name = "snd-soc-dummy",
178 .platform_name = "sst-mfld-platform",
183 .ops = &cht_aif1_ops,
185 [MERR_DPCM_DEEP_BUFFER] = {
186 .name = "Deep-Buffer Audio Port",
187 .stream_name = "Deep-Buffer Audio",
188 .cpu_dai_name = "deepbuffer-cpu-dai",
189 .codec_dai_name = "snd-soc-dummy-dai",
190 .codec_name = "snd-soc-dummy",
191 .platform_name = "sst-mfld-platform",
195 .ops = &cht_aif1_ops,
197 [MERR_DPCM_COMPR] = {
198 .name = "Compressed Port",
199 .stream_name = "Compress",
200 .cpu_dai_name = "compress-cpu-dai",
201 .codec_dai_name = "snd-soc-dummy-dai",
202 .codec_name = "snd-soc-dummy",
203 .platform_name = "sst-mfld-platform",
205 /* Back End DAI links */
208 .name = "SSP2-Codec",
210 .cpu_dai_name = "ssp2-port",
211 .platform_name = "sst-mfld-platform",
213 .codec_dai_name = NAU8824_CODEC_DAI,
214 .codec_name = "i2c-10508824:00",
215 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF
216 | SND_SOC_DAIFMT_CBS_CFS,
217 .init = cht_codec_init,
218 .be_hw_params_fixup = cht_codec_fixup,
221 .ops = &cht_be_ssp2_ops,
226 static struct snd_soc_card snd_soc_card_cht = {
227 .name = "chtnau8824",
228 .owner = THIS_MODULE,
229 .dai_link = cht_dailink,
230 .num_links = ARRAY_SIZE(cht_dailink),
231 .dapm_widgets = cht_dapm_widgets,
232 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
233 .dapm_routes = cht_audio_map,
234 .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
235 .controls = cht_mc_controls,
236 .num_controls = ARRAY_SIZE(cht_mc_controls),
239 static int snd_cht_mc_probe(struct platform_device *pdev)
241 struct cht_mc_private *drv;
242 struct snd_soc_acpi_mach *mach;
243 const char *platform_name;
246 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
249 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
251 /* override plaform name, if required */
252 snd_soc_card_cht.dev = &pdev->dev;
253 mach = (&pdev->dev)->platform_data;
254 platform_name = mach->mach_params.platform;
256 ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht,
261 /* register the soc card */
262 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
265 "snd_soc_register_card failed %d\n", ret_val);
268 platform_set_drvdata(pdev, &snd_soc_card_cht);
273 static struct platform_driver snd_cht_mc_driver = {
275 .name = "cht-bsw-nau8824",
277 .probe = snd_cht_mc_probe,
280 module_platform_driver(snd_cht_mc_driver);
282 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
283 MODULE_AUTHOR("Wang, Joseph C <joequant@gmail.com>");
284 MODULE_AUTHOR("John Hsu <KCHSU0@nuvoton.com>");
285 MODULE_LICENSE("GPL v2");
286 MODULE_ALIAS("platform:cht-bsw-nau8824");