2 * cht-bsw-max98090.c - ASoc Machine driver for Intel Cherryview-based
3 * platforms Cherrytrail and Braswell, with max98090 & TI codec.
5 * Copyright (C) 2015 Intel Corp
6 * Author: Fang, Yang A <yang.a.fang@intel.com>
7 * This file is modified from cht_bsw_rt5645.c
8 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; version 2 of the License.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
22 #include <linux/module.h>
23 #include <linux/platform_device.h>
24 #include <linux/slab.h>
25 #include <linux/acpi.h>
26 #include <sound/pcm.h>
27 #include <sound/pcm_params.h>
28 #include <sound/soc.h>
29 #include <sound/jack.h>
30 #include "../../codecs/max98090.h"
31 #include "../atom/sst-atom-controls.h"
32 #include "../../codecs/ts3a227e.h"
34 #define CHT_PLAT_CLK_3_HZ 19200000
35 #define CHT_CODEC_DAI "HiFi"
37 struct cht_mc_private {
38 struct snd_soc_jack jack;
39 bool ts3a227e_present;
42 static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
46 for (i = 0; i < card->num_rtd; i++) {
47 struct snd_soc_pcm_runtime *rtd;
50 if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
51 strlen(CHT_CODEC_DAI)))
52 return rtd->codec_dai;
57 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
58 SND_SOC_DAPM_HP("Headphone", NULL),
59 SND_SOC_DAPM_MIC("Headset Mic", NULL),
60 SND_SOC_DAPM_MIC("Int Mic", NULL),
61 SND_SOC_DAPM_SPK("Ext Spk", NULL),
64 static const struct snd_soc_dapm_route cht_audio_map[] = {
65 {"IN34", NULL, "Headset Mic"},
66 {"Headset Mic", NULL, "MICBIAS"},
67 {"DMICL", NULL, "Int Mic"},
68 {"Headphone", NULL, "HPL"},
69 {"Headphone", NULL, "HPR"},
70 {"Ext Spk", NULL, "SPKL"},
71 {"Ext Spk", NULL, "SPKR"},
72 {"HiFi Playback", NULL, "ssp2 Tx"},
73 {"ssp2 Tx", NULL, "codec_out0"},
74 {"ssp2 Tx", NULL, "codec_out1"},
75 {"codec_in0", NULL, "ssp2 Rx" },
76 {"codec_in1", NULL, "ssp2 Rx" },
77 {"ssp2 Rx", NULL, "HiFi Capture"},
80 static const struct snd_kcontrol_new cht_mc_controls[] = {
81 SOC_DAPM_PIN_SWITCH("Headphone"),
82 SOC_DAPM_PIN_SWITCH("Headset Mic"),
83 SOC_DAPM_PIN_SWITCH("Int Mic"),
84 SOC_DAPM_PIN_SWITCH("Ext Spk"),
87 static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
88 struct snd_pcm_hw_params *params)
90 struct snd_soc_pcm_runtime *rtd = substream->private_data;
91 struct snd_soc_dai *codec_dai = rtd->codec_dai;
94 ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK,
95 CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN);
97 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
104 static int cht_ti_jack_event(struct notifier_block *nb,
105 unsigned long event, void *data)
108 struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
109 struct snd_soc_dai *codec_dai = jack->card->rtd->codec_dai;
110 struct snd_soc_codec *codec = codec_dai->codec;
112 if (event & SND_JACK_MICROPHONE) {
114 snd_soc_dapm_force_enable_pin(&codec->dapm, "SHDN");
115 snd_soc_dapm_force_enable_pin(&codec->dapm, "MICBIAS");
116 snd_soc_dapm_sync(&codec->dapm);
119 snd_soc_dapm_disable_pin(&codec->dapm, "MICBIAS");
120 snd_soc_dapm_disable_pin(&codec->dapm, "SHDN");
121 snd_soc_dapm_sync(&codec->dapm);
127 static struct notifier_block cht_jack_nb = {
128 .notifier_call = cht_ti_jack_event,
131 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
135 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
136 struct snd_soc_jack *jack = &ctx->jack;
139 * TI supports 4 butons headset detection
145 if (ctx->ts3a227e_present)
146 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
147 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
148 SND_JACK_BTN_2 | SND_JACK_BTN_3;
150 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
152 ret = snd_soc_card_jack_new(runtime->card, "Headset Jack",
153 jack_type, jack, NULL, 0);
156 dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret);
160 if (ctx->ts3a227e_present)
161 snd_soc_jack_notifier_register(jack, &cht_jack_nb);
166 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
167 struct snd_pcm_hw_params *params)
169 struct snd_interval *rate = hw_param_interval(params,
170 SNDRV_PCM_HW_PARAM_RATE);
171 struct snd_interval *channels = hw_param_interval(params,
172 SNDRV_PCM_HW_PARAM_CHANNELS);
174 unsigned int fmt = 0;
176 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
178 dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret);
182 fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF
183 | SND_SOC_DAIFMT_CBS_CFS;
185 ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt);
187 dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret);
191 /* The DSP will covert the FE rate to 48k, stereo, 24bits */
192 rate->min = rate->max = 48000;
193 channels->min = channels->max = 2;
195 /* set SSP2 to 24-bit */
196 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
200 static unsigned int rates_48000[] = {
204 static struct snd_pcm_hw_constraint_list constraints_48000 = {
205 .count = ARRAY_SIZE(rates_48000),
209 static int cht_aif1_startup(struct snd_pcm_substream *substream)
211 return snd_pcm_hw_constraint_list(substream->runtime, 0,
212 SNDRV_PCM_HW_PARAM_RATE,
216 static int cht_max98090_headset_init(struct snd_soc_component *component)
218 struct snd_soc_card *card = component->card;
219 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
221 return ts3a227e_enable_jack_detect(component, &ctx->jack);
224 static struct snd_soc_ops cht_aif1_ops = {
225 .startup = cht_aif1_startup,
228 static struct snd_soc_ops cht_be_ssp2_ops = {
229 .hw_params = cht_aif1_hw_params,
232 static struct snd_soc_aux_dev cht_max98090_headset_dev = {
233 .name = "Headset Chip",
234 .init = cht_max98090_headset_init,
235 .codec_name = "i2c-104C227E:00",
238 static struct snd_soc_dai_link cht_dailink[] = {
239 [MERR_DPCM_AUDIO] = {
240 .name = "Audio Port",
241 .stream_name = "Audio",
242 .cpu_dai_name = "media-cpu-dai",
243 .codec_dai_name = "snd-soc-dummy-dai",
244 .codec_name = "snd-soc-dummy",
245 .platform_name = "sst-mfld-platform",
250 .ops = &cht_aif1_ops,
252 [MERR_DPCM_COMPR] = {
253 .name = "Compressed Port",
254 .stream_name = "Compress",
255 .cpu_dai_name = "compress-cpu-dai",
256 .codec_dai_name = "snd-soc-dummy-dai",
257 .codec_name = "snd-soc-dummy",
258 .platform_name = "sst-mfld-platform",
262 .name = "SSP2-Codec",
264 .cpu_dai_name = "ssp2-port",
265 .platform_name = "sst-mfld-platform",
267 .codec_dai_name = "HiFi",
268 .codec_name = "i2c-193C9890:00",
269 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
270 | SND_SOC_DAIFMT_CBS_CFS,
271 .init = cht_codec_init,
272 .be_hw_params_fixup = cht_codec_fixup,
275 .ops = &cht_be_ssp2_ops,
280 static struct snd_soc_card snd_soc_card_cht = {
281 .name = "chtmax98090",
282 .dai_link = cht_dailink,
283 .num_links = ARRAY_SIZE(cht_dailink),
284 .aux_dev = &cht_max98090_headset_dev,
286 .dapm_widgets = cht_dapm_widgets,
287 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
288 .dapm_routes = cht_audio_map,
289 .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
290 .controls = cht_mc_controls,
291 .num_controls = ARRAY_SIZE(cht_mc_controls),
294 static acpi_status snd_acpi_codec_match(acpi_handle handle, u32 level,
295 void *context, void **ret)
297 *(bool *)context = true;
301 static int snd_cht_mc_probe(struct platform_device *pdev)
305 struct cht_mc_private *drv;
307 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
311 if (ACPI_SUCCESS(acpi_get_devices(
313 snd_acpi_codec_match,
314 &found, NULL)) && found) {
315 drv->ts3a227e_present = true;
317 /* no need probe TI jack detection chip */
318 snd_soc_card_cht.aux_dev = NULL;
319 snd_soc_card_cht.num_aux_devs = 0;
320 drv->ts3a227e_present = false;
323 /* register the soc card */
324 snd_soc_card_cht.dev = &pdev->dev;
325 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
326 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
329 "snd_soc_register_card failed %d\n", ret_val);
332 platform_set_drvdata(pdev, &snd_soc_card_cht);
336 static struct platform_driver snd_cht_mc_driver = {
338 .name = "cht-bsw-max98090",
340 .probe = snd_cht_mc_probe,
343 module_platform_driver(snd_cht_mc_driver)
345 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver");
346 MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>");
347 MODULE_LICENSE("GPL v2");
348 MODULE_ALIAS("platform:cht-bsw-max98090");