| /* |
| * cht-bsw-rt5645.c - ASoc Machine driver for Intel Cherryview-based platforms |
| * Cherrytrail and Braswell, with RT5645 codec. |
| * |
| * Copyright (C) 2015 Intel Corp |
| * Author: Fang, Yang A <yang.a.fang@intel.com> |
| * N,Harshapriya <harshapriya.n@intel.com> |
| * This file is modified from cht_bsw_rt5672.c |
| * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/acpi.h> |
| #include <linux/platform_device.h> |
| #include <linux/slab.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/soc.h> |
| #include <sound/jack.h> |
| #include "../../codecs/rt5645.h" |
| #include "../atom/sst-atom-controls.h" |
| |
| #define CHT_PLAT_CLK_3_HZ 19200000 |
| #define CHT_CODEC_DAI "rt5645-aif1" |
| |
| struct cht_acpi_card { |
| char *codec_id; |
| int codec_type; |
| struct snd_soc_card *soc_card; |
| }; |
| |
| struct cht_mc_private { |
| struct snd_soc_jack jack; |
| struct cht_acpi_card *acpi_card; |
| }; |
| |
| static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card) |
| { |
| int i; |
| |
| for (i = 0; i < card->num_rtd; i++) { |
| struct snd_soc_pcm_runtime *rtd; |
| |
| rtd = card->rtd + i; |
| if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI, |
| strlen(CHT_CODEC_DAI))) |
| return rtd->codec_dai; |
| } |
| return NULL; |
| } |
| |
| static int platform_clock_control(struct snd_soc_dapm_widget *w, |
| struct snd_kcontrol *k, int event) |
| { |
| struct snd_soc_dapm_context *dapm = w->dapm; |
| struct snd_soc_card *card = dapm->card; |
| struct snd_soc_dai *codec_dai; |
| int ret; |
| |
| codec_dai = cht_get_codec_dai(card); |
| if (!codec_dai) { |
| dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n"); |
| return -EIO; |
| } |
| |
| if (!SND_SOC_DAPM_EVENT_OFF(event)) |
| return 0; |
| |
| /* Set codec sysclk source to its internal clock because codec PLL will |
| * be off when idle and MCLK will also be off by ACPI when codec is |
| * runtime suspended. Codec needs clock for jack detection and button |
| * press. |
| */ |
| ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_RCCLK, |
| 0, SND_SOC_CLOCK_IN); |
| if (ret < 0) { |
| dev_err(card->dev, "can't set codec sysclk: %d\n", ret); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { |
| SND_SOC_DAPM_HP("Headphone", NULL), |
| SND_SOC_DAPM_MIC("Headset Mic", NULL), |
| SND_SOC_DAPM_MIC("Int Mic", NULL), |
| SND_SOC_DAPM_SPK("Ext Spk", NULL), |
| SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, |
| platform_clock_control, SND_SOC_DAPM_POST_PMD), |
| }; |
| |
| static const struct snd_soc_dapm_route cht_rt5645_audio_map[] = { |
| {"IN1P", NULL, "Headset Mic"}, |
| {"IN1N", NULL, "Headset Mic"}, |
| {"DMIC L1", NULL, "Int Mic"}, |
| {"DMIC R1", NULL, "Int Mic"}, |
| {"Headphone", NULL, "HPOL"}, |
| {"Headphone", NULL, "HPOR"}, |
| {"Ext Spk", NULL, "SPOL"}, |
| {"Ext Spk", NULL, "SPOR"}, |
| {"AIF1 Playback", NULL, "ssp2 Tx"}, |
| {"ssp2 Tx", NULL, "codec_out0"}, |
| {"ssp2 Tx", NULL, "codec_out1"}, |
| {"codec_in0", NULL, "ssp2 Rx" }, |
| {"codec_in1", NULL, "ssp2 Rx" }, |
| {"ssp2 Rx", NULL, "AIF1 Capture"}, |
| {"Headphone", NULL, "Platform Clock"}, |
| {"Headset Mic", NULL, "Platform Clock"}, |
| {"Int Mic", NULL, "Platform Clock"}, |
| {"Ext Spk", NULL, "Platform Clock"}, |
| }; |
| |
| static const struct snd_soc_dapm_route cht_rt5650_audio_map[] = { |
| {"IN1P", NULL, "Headset Mic"}, |
| {"IN1N", NULL, "Headset Mic"}, |
| {"DMIC L2", NULL, "Int Mic"}, |
| {"DMIC R2", NULL, "Int Mic"}, |
| {"Headphone", NULL, "HPOL"}, |
| {"Headphone", NULL, "HPOR"}, |
| {"Ext Spk", NULL, "SPOL"}, |
| {"Ext Spk", NULL, "SPOR"}, |
| {"AIF1 Playback", NULL, "ssp2 Tx"}, |
| {"ssp2 Tx", NULL, "codec_out0"}, |
| {"ssp2 Tx", NULL, "codec_out1"}, |
| {"codec_in0", NULL, "ssp2 Rx" }, |
| {"codec_in1", NULL, "ssp2 Rx" }, |
| {"ssp2 Rx", NULL, "AIF1 Capture"}, |
| {"Headphone", NULL, "Platform Clock"}, |
| {"Headset Mic", NULL, "Platform Clock"}, |
| {"Int Mic", NULL, "Platform Clock"}, |
| {"Ext Spk", NULL, "Platform Clock"}, |
| }; |
| |
| static const struct snd_kcontrol_new cht_mc_controls[] = { |
| SOC_DAPM_PIN_SWITCH("Headphone"), |
| SOC_DAPM_PIN_SWITCH("Headset Mic"), |
| SOC_DAPM_PIN_SWITCH("Int Mic"), |
| SOC_DAPM_PIN_SWITCH("Ext Spk"), |
| }; |
| |
| static int cht_aif1_hw_params(struct snd_pcm_substream *substream, |
| struct snd_pcm_hw_params *params) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct snd_soc_dai *codec_dai = rtd->codec_dai; |
| int ret; |
| |
| /* set codec PLL source to the 19.2MHz platform clock (MCLK) */ |
| ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK, |
| CHT_PLAT_CLK_3_HZ, params_rate(params) * 512); |
| if (ret < 0) { |
| dev_err(rtd->dev, "can't set codec pll: %d\n", ret); |
| return ret; |
| } |
| |
| ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1, |
| params_rate(params) * 512, SND_SOC_CLOCK_IN); |
| if (ret < 0) { |
| dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) |
| { |
| int ret; |
| int jack_type; |
| struct snd_soc_codec *codec = runtime->codec; |
| struct snd_soc_dai *codec_dai = runtime->codec_dai; |
| struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); |
| |
| /* Select clk_i2s1_asrc as ASRC clock source */ |
| rt5645_sel_asrc_clk_src(codec, |
| RT5645_DA_STEREO_FILTER | |
| RT5645_DA_MONO_L_FILTER | |
| RT5645_DA_MONO_R_FILTER | |
| RT5645_AD_STEREO_FILTER, |
| RT5645_CLK_SEL_I2S1_ASRC); |
| |
| /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ |
| ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24); |
| if (ret < 0) { |
| dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret); |
| return ret; |
| } |
| |
| if (ctx->acpi_card->codec_type == CODEC_TYPE_RT5650) |
| jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | |
| SND_JACK_BTN_0 | SND_JACK_BTN_1 | |
| SND_JACK_BTN_2 | SND_JACK_BTN_3; |
| else |
| jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE; |
| |
| ret = snd_soc_card_jack_new(runtime->card, "Headset Jack", |
| jack_type, &ctx->jack, |
| NULL, 0); |
| if (ret) { |
| dev_err(runtime->dev, "Headset jack creation failed %d\n", ret); |
| return ret; |
| } |
| |
| rt5645_set_jack_detect(codec, &ctx->jack, &ctx->jack, &ctx->jack); |
| |
| return ret; |
| } |
| |
| static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, |
| struct snd_pcm_hw_params *params) |
| { |
| struct snd_interval *rate = hw_param_interval(params, |
| SNDRV_PCM_HW_PARAM_RATE); |
| struct snd_interval *channels = hw_param_interval(params, |
| SNDRV_PCM_HW_PARAM_CHANNELS); |
| |
| /* The DSP will covert the FE rate to 48k, stereo, 24bits */ |
| rate->min = rate->max = 48000; |
| channels->min = channels->max = 2; |
| |
| /* set SSP2 to 24-bit */ |
| params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); |
| return 0; |
| } |
| |
| static int cht_aif1_startup(struct snd_pcm_substream *substream) |
| { |
| return snd_pcm_hw_constraint_single(substream->runtime, |
| SNDRV_PCM_HW_PARAM_RATE, 48000); |
| } |
| |
| static struct snd_soc_ops cht_aif1_ops = { |
| .startup = cht_aif1_startup, |
| }; |
| |
| static struct snd_soc_ops cht_be_ssp2_ops = { |
| .hw_params = cht_aif1_hw_params, |
| }; |
| |
| static struct snd_soc_dai_link cht_dailink[] = { |
| [MERR_DPCM_AUDIO] = { |
| .name = "Audio Port", |
| .stream_name = "Audio", |
| .cpu_dai_name = "media-cpu-dai", |
| .codec_dai_name = "snd-soc-dummy-dai", |
| .codec_name = "snd-soc-dummy", |
| .platform_name = "sst-mfld-platform", |
| .nonatomic = true, |
| .dynamic = 1, |
| .dpcm_playback = 1, |
| .dpcm_capture = 1, |
| .ops = &cht_aif1_ops, |
| }, |
| [MERR_DPCM_COMPR] = { |
| .name = "Compressed Port", |
| .stream_name = "Compress", |
| .cpu_dai_name = "compress-cpu-dai", |
| .codec_dai_name = "snd-soc-dummy-dai", |
| .codec_name = "snd-soc-dummy", |
| .platform_name = "sst-mfld-platform", |
| }, |
| /* CODEC<->CODEC link */ |
| /* back ends */ |
| { |
| .name = "SSP2-Codec", |
| .be_id = 1, |
| .cpu_dai_name = "ssp2-port", |
| .platform_name = "sst-mfld-platform", |
| .no_pcm = 1, |
| .codec_dai_name = "rt5645-aif1", |
| .codec_name = "i2c-10EC5645:00", |
| .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF |
| | SND_SOC_DAIFMT_CBS_CFS, |
| .init = cht_codec_init, |
| .be_hw_params_fixup = cht_codec_fixup, |
| .nonatomic = true, |
| .dpcm_playback = 1, |
| .dpcm_capture = 1, |
| .ops = &cht_be_ssp2_ops, |
| }, |
| }; |
| |
| /* SoC card */ |
| static struct snd_soc_card snd_soc_card_chtrt5645 = { |
| .name = "chtrt5645", |
| .owner = THIS_MODULE, |
| .dai_link = cht_dailink, |
| .num_links = ARRAY_SIZE(cht_dailink), |
| .dapm_widgets = cht_dapm_widgets, |
| .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), |
| .dapm_routes = cht_rt5645_audio_map, |
| .num_dapm_routes = ARRAY_SIZE(cht_rt5645_audio_map), |
| .controls = cht_mc_controls, |
| .num_controls = ARRAY_SIZE(cht_mc_controls), |
| }; |
| |
| static struct snd_soc_card snd_soc_card_chtrt5650 = { |
| .name = "chtrt5650", |
| .owner = THIS_MODULE, |
| .dai_link = cht_dailink, |
| .num_links = ARRAY_SIZE(cht_dailink), |
| .dapm_widgets = cht_dapm_widgets, |
| .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), |
| .dapm_routes = cht_rt5650_audio_map, |
| .num_dapm_routes = ARRAY_SIZE(cht_rt5650_audio_map), |
| .controls = cht_mc_controls, |
| .num_controls = ARRAY_SIZE(cht_mc_controls), |
| }; |
| |
| static struct cht_acpi_card snd_soc_cards[] = { |
| {"10EC5645", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645}, |
| {"10EC5650", CODEC_TYPE_RT5650, &snd_soc_card_chtrt5650}, |
| }; |
| |
| static acpi_status snd_acpi_codec_match(acpi_handle handle, u32 level, |
| void *context, void **ret) |
| { |
| *(bool *)context = true; |
| return AE_OK; |
| } |
| |
| static int snd_cht_mc_probe(struct platform_device *pdev) |
| { |
| int ret_val = 0; |
| int i; |
| struct cht_mc_private *drv; |
| struct snd_soc_card *card = snd_soc_cards[0].soc_card; |
| bool found = false; |
| char codec_name[16]; |
| |
| drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC); |
| if (!drv) |
| return -ENOMEM; |
| |
| for (i = 0; i < ARRAY_SIZE(snd_soc_cards); i++) { |
| if (ACPI_SUCCESS(acpi_get_devices( |
| snd_soc_cards[i].codec_id, |
| snd_acpi_codec_match, |
| &found, NULL)) && found) { |
| dev_dbg(&pdev->dev, |
| "found codec %s\n", snd_soc_cards[i].codec_id); |
| card = snd_soc_cards[i].soc_card; |
| drv->acpi_card = &snd_soc_cards[i]; |
| break; |
| } |
| } |
| card->dev = &pdev->dev; |
| sprintf(codec_name, "i2c-%s:00", drv->acpi_card->codec_id); |
| /* set correct codec name */ |
| strcpy((char *)card->dai_link[2].codec_name, codec_name); |
| snd_soc_card_set_drvdata(card, drv); |
| ret_val = devm_snd_soc_register_card(&pdev->dev, card); |
| if (ret_val) { |
| dev_err(&pdev->dev, |
| "snd_soc_register_card failed %d\n", ret_val); |
| return ret_val; |
| } |
| platform_set_drvdata(pdev, card); |
| return ret_val; |
| } |
| |
| static struct platform_driver snd_cht_mc_driver = { |
| .driver = { |
| .name = "cht-bsw-rt5645", |
| }, |
| .probe = snd_cht_mc_probe, |
| }; |
| |
| module_platform_driver(snd_cht_mc_driver) |
| |
| MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); |
| MODULE_AUTHOR("Fang, Yang A,N,Harshapriya"); |
| MODULE_LICENSE("GPL v2"); |
| MODULE_ALIAS("platform:cht-bsw-rt5645"); |