/* * tegra_rt5640.c - Tegra machine ASoC driver for boards using ALC5640 codec. * * Author: Johnny Qiu * Copyright (C) 2011 - NVIDIA, Inc. * * Based on code copyright/by: * * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd. * * Copyright 2007 Wolfson Microelectronics PLC. * Author: Graeme Gregory * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #include #include #include #include #include #include #ifdef CONFIG_SWITCH #include #endif #include #include #include #include #include #include #include "../codecs/rt5640.h" #include "tegra_pcm.h" #include "tegra_asoc_utils.h" #define DRV_NAME "tegra-snd-rt5640" #define GPIO_SPKR_EN BIT(0) #define GPIO_HP_MUTE BIT(1) #define GPIO_INT_MIC_EN BIT(2) #define GPIO_EXT_MIC_EN BIT(3) #define GPIO_HP_DET BIT(4) struct tegra_rt5640 { struct tegra_asoc_utils_data util_data; struct tegra_rt5640_platform_data *pdata; struct regulator *spk_reg; struct regulator *dmic_reg; int gpio_requested; #ifdef CONFIG_SWITCH int jack_status; #endif }; static int tegra_rt5640_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; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct snd_soc_codec *codec = rtd->codec; struct snd_soc_card *card = codec->card; struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(card); int srate, mclk, i2s_daifmt; int err; srate = params_rate(params); mclk = 256 * srate; err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk); if (err < 0) { if (!(machine->util_data.set_mclk % mclk)) mclk = machine->util_data.set_mclk; else { dev_err(card->dev, "Can't configure clocks\n"); return err; } } tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1); i2s_daifmt = SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS; i2s_daifmt |= SND_SOC_DAIFMT_I2S; err = snd_soc_dai_set_fmt(codec_dai, i2s_daifmt); if (err < 0) { dev_err(card->dev, "codec_dai fmt not set\n"); return err; } err = snd_soc_dai_set_fmt(cpu_dai, i2s_daifmt); if (err < 0) { dev_err(card->dev, "cpu_dai fmt not set\n"); return err; } err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, SND_SOC_CLOCK_IN); if (err < 0) { dev_err(card->dev, "codec_dai clock not set\n"); return err; } return 0; } static int tegra_bt_sco_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 *cpu_dai = rtd->cpu_dai; struct snd_soc_card *card = rtd->card; struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(card); int srate, mclk, min_mclk; int err; srate = params_rate(params); switch (srate) { case 11025: case 22050: case 44100: case 88200: mclk = 11289600; break; case 8000: case 16000: case 32000: case 48000: case 64000: case 96000: mclk = 12288000; break; default: return -EINVAL; } min_mclk = 64 * srate; err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk); if (err < 0) { if (!(machine->util_data.set_mclk % min_mclk)) mclk = machine->util_data.set_mclk; else { dev_err(card->dev, "Can't configure clocks\n"); return err; } } tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1); err = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); if (err < 0) { dev_err(card->dev, "cpu_dai fmt not set\n"); return err; } return 0; } static int tegra_spdif_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_card *card = rtd->card; struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(card); int srate, mclk, min_mclk; int err; srate = params_rate(params); switch (srate) { case 11025: case 22050: case 44100: case 88200: mclk = 11289600; break; case 8000: case 16000: case 32000: case 48000: case 64000: case 96000: mclk = 12288000; break; default: return -EINVAL; } min_mclk = 128 * srate; err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk); if (err < 0) { if (!(machine->util_data.set_mclk % min_mclk)) mclk = machine->util_data.set_mclk; else { dev_err(card->dev, "Can't configure clocks\n"); return err; } } tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1); return 0; } static int tegra_hw_free(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(rtd->card); tegra_asoc_utils_lock_clk_rate(&machine->util_data, 0); return 0; } static struct snd_soc_ops tegra_rt5640_ops = { .hw_params = tegra_rt5640_hw_params, .hw_free = tegra_hw_free, }; static struct snd_soc_ops tegra_rt5640_bt_sco_ops = { .hw_params = tegra_bt_sco_hw_params, .hw_free = tegra_hw_free, }; static struct snd_soc_ops tegra_spdif_ops = { .hw_params = tegra_spdif_hw_params, .hw_free = tegra_hw_free, }; static struct snd_soc_jack tegra_rt5640_hp_jack; static struct snd_soc_jack_gpio tegra_rt5640_hp_jack_gpio = { .name = "headphone detect", .report = SND_JACK_HEADPHONE, .debounce_time = 150, .invert = 1, }; #ifdef CONFIG_SWITCH /* These values are copied from Android WiredAccessoryObserver */ enum headset_state { BIT_NO_HEADSET = 0, BIT_HEADSET = (1 << 0), BIT_HEADSET_NO_MIC = (1 << 1), }; static struct switch_dev tegra_rt5640_headset_switch = { .name = "h2w1", }; #else static struct snd_soc_jack_pin tegra_rt5640_hp_jack_pins[] = { { .pin = "Headphone Jack", .mask = SND_JACK_HEADPHONE, }, }; static struct snd_soc_jack_pin tegra_rt5640_mic_jack_pins[] = { { .pin = "Mic Jack", .mask = SND_JACK_MICROPHONE, }, }; #endif static int tegra_rt5640_event_int_spk(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 tegra_rt5640 *machine = snd_soc_card_get_drvdata(card); struct tegra_rt5640_platform_data *pdata = machine->pdata; if (machine->spk_reg) { if (SND_SOC_DAPM_EVENT_ON(event)) regulator_enable(machine->spk_reg); else regulator_disable(machine->spk_reg); } if (!(machine->gpio_requested & GPIO_SPKR_EN)) return 0; gpio_set_value_cansleep(pdata->gpio_spkr_en, SND_SOC_DAPM_EVENT_ON(event)); return 0; } static int tegra_rt5640_event_hp(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 tegra_rt5640 *machine = snd_soc_card_get_drvdata(card); struct tegra_rt5640_platform_data *pdata = machine->pdata; if (!(machine->gpio_requested & GPIO_HP_MUTE)) return 0; gpio_set_value_cansleep(pdata->gpio_hp_mute, !SND_SOC_DAPM_EVENT_ON(event)); return 0; } static int tegra_rt5640_event_int_mic(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 tegra_rt5640 *machine = snd_soc_card_get_drvdata(card); struct tegra_rt5640_platform_data *pdata = machine->pdata; if (machine->dmic_reg) { if (SND_SOC_DAPM_EVENT_ON(event)) regulator_enable(machine->dmic_reg); else regulator_disable(machine->dmic_reg); } if (!(machine->gpio_requested & GPIO_INT_MIC_EN)) return 0; gpio_set_value_cansleep(pdata->gpio_int_mic_en, SND_SOC_DAPM_EVENT_ON(event)); return 0; } static int tegra_rt5640_event_ext_mic(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 tegra_rt5640 *machine = snd_soc_card_get_drvdata(card); struct tegra_rt5640_platform_data *pdata = machine->pdata; if (!(machine->gpio_requested & GPIO_EXT_MIC_EN)) return 0; gpio_set_value_cansleep(pdata->gpio_ext_mic_en, SND_SOC_DAPM_EVENT_ON(event)); return 0; } static const struct snd_soc_dapm_widget cardhu_dapm_widgets[] = { SND_SOC_DAPM_SPK("Int Spk", tegra_rt5640_event_int_spk), SND_SOC_DAPM_HP("Headphone Jack", tegra_rt5640_event_hp), SND_SOC_DAPM_MIC("Mic Jack", tegra_rt5640_event_ext_mic), SND_SOC_DAPM_MIC("Int Mic", tegra_rt5640_event_int_mic), }; static const struct snd_soc_dapm_route cardhu_audio_map[] = { {"Headphone Jack", NULL, "HPOR"}, {"Headphone Jack", NULL, "HPOL"}, {"Int Spk", NULL, "SPORP"}, {"Int Spk", NULL, "SPORN"}, {"Int Spk", NULL, "SPOLP"}, {"Int Spk", NULL, "SPOLN"}, {"micbias1", NULL, "Mic Jack"}, {"IN1P", NULL, "micbias1"}, {"IN1N", NULL, "micbias1"}, {"micbias1", NULL, "Int Mic"}, {"IN2P", NULL, "micbias1"}, }; static const struct snd_kcontrol_new cardhu_controls[] = { SOC_DAPM_PIN_SWITCH("Int Spk"), SOC_DAPM_PIN_SWITCH("Headphone Jack"), SOC_DAPM_PIN_SWITCH("Mic Jack"), SOC_DAPM_PIN_SWITCH("Int Mic"), }; static int tegra_rt5640_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; struct snd_soc_dapm_context *dapm = &codec->dapm; struct snd_soc_card *card = codec->card; struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(card); struct tegra_rt5640_platform_data *pdata = machine->pdata; int ret; if (gpio_is_valid(pdata->gpio_spkr_en)) { ret = gpio_request(pdata->gpio_spkr_en, "spkr_en"); if (ret) { dev_err(card->dev, "cannot get spkr_en gpio\n"); return ret; } machine->gpio_requested |= GPIO_SPKR_EN; gpio_direction_output(pdata->gpio_spkr_en, 0); } if (gpio_is_valid(pdata->gpio_hp_mute)) { ret = gpio_request(pdata->gpio_hp_mute, "hp_mute"); if (ret) { dev_err(card->dev, "cannot get hp_mute gpio\n"); return ret; } machine->gpio_requested |= GPIO_HP_MUTE; gpio_direction_output(pdata->gpio_hp_mute, 0); } if (gpio_is_valid(pdata->gpio_int_mic_en)) { ret = gpio_request(pdata->gpio_int_mic_en, "int_mic_en"); if (ret) { dev_err(card->dev, "cannot get int_mic_en gpio\n"); return ret; } machine->gpio_requested |= GPIO_INT_MIC_EN; /* Disable int mic; enable signal is active-high */ gpio_direction_output(pdata->gpio_int_mic_en, 0); } if (gpio_is_valid(pdata->gpio_ext_mic_en)) { ret = gpio_request(pdata->gpio_ext_mic_en, "ext_mic_en"); if (ret) { dev_err(card->dev, "cannot get ext_mic_en gpio\n"); return ret; } machine->gpio_requested |= GPIO_EXT_MIC_EN; /* Enable ext mic; enable signal is active-low */ gpio_direction_output(pdata->gpio_ext_mic_en, 0); } ret = snd_soc_add_controls(codec, cardhu_controls, ARRAY_SIZE(cardhu_controls)); if (ret < 0) return ret; snd_soc_dapm_new_controls(dapm, cardhu_dapm_widgets, ARRAY_SIZE(cardhu_dapm_widgets)); snd_soc_dapm_add_routes(dapm, cardhu_audio_map, ARRAY_SIZE(cardhu_audio_map)); /* FIXME: Calculate automatically based on DAPM routes? */ snd_soc_dapm_nc_pin(dapm, "LOUTL"); snd_soc_dapm_nc_pin(dapm, "LOUTR"); snd_soc_dapm_sync(dapm); return 0; } static struct snd_soc_dai_link tegra_rt5640_dai[] = { { .name = "RT5640", .stream_name = "RT5640 PCM", .codec_name = "rt5640.4-001c", .platform_name = "tegra-pcm-audio", .cpu_dai_name = "tegra30-i2s.1", .codec_dai_name = "rt5640-aif1", .init = tegra_rt5640_init, .ops = &tegra_rt5640_ops, }, { .name = "SPDIF", .stream_name = "SPDIF PCM", .codec_name = "spdif-dit.0", .platform_name = "tegra-pcm-audio", .cpu_dai_name = "tegra30-spdif", .codec_dai_name = "dit-hifi", .ops = &tegra_spdif_ops, }, { .name = "BT-SCO", .stream_name = "BT SCO PCM", .codec_name = "spdif-dit.1", .platform_name = "tegra-pcm-audio", .cpu_dai_name = "tegra30-i2s.4", .codec_dai_name = "dit-hifi", .ops = &tegra_rt5640_bt_sco_ops, }, }; static struct snd_soc_card snd_soc_tegra_rt5640 = { .name = "tegra-rt5640", .dai_link = tegra_rt5640_dai, .num_links = ARRAY_SIZE(tegra_rt5640_dai), }; static __devinit int tegra_rt5640_driver_probe(struct platform_device *pdev) { struct snd_soc_card *card = &snd_soc_tegra_rt5640; struct tegra_rt5640 *machine; struct tegra_rt5640_platform_data *pdata; int ret; pdata = pdev->dev.platform_data; if (!pdata) { dev_err(&pdev->dev, "No platform data supplied\n"); return -EINVAL; } if (pdata->codec_name) card->dai_link->codec_name = pdata->codec_name; if (pdata->codec_dai_name) card->dai_link->codec_dai_name = pdata->codec_dai_name; machine = kzalloc(sizeof(struct tegra_rt5640), GFP_KERNEL); if (!machine) { dev_err(&pdev->dev, "Can't allocate tegra_rt5640 struct\n"); return -ENOMEM; } machine->pdata = pdata; ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev); if (ret) goto err_free_machine; machine->spk_reg = regulator_get(&pdev->dev, "vdd_spk_amp"); if (IS_ERR(machine->spk_reg)) { dev_info(&pdev->dev, "No speaker regulator found\n"); machine->spk_reg = 0; } #ifdef CONFIG_SWITCH /* Addd h2w swith class support */ ret = switch_dev_register(&tegra_rt5640_headset_switch); if (ret < 0) goto err_fini_utils; #endif card->dev = &pdev->dev; platform_set_drvdata(pdev, card); snd_soc_card_set_drvdata(card, machine); ret = snd_soc_register_card(card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); goto err_unregister_switch; } if (!card->instantiated) { ret = -ENODEV; dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); goto err_unregister_card; } return 0; err_unregister_card: snd_soc_unregister_card(card); err_unregister_switch: #ifdef CONFIG_SWITCH switch_dev_unregister(&tegra_rt5640_headset_switch); err_fini_utils: #endif tegra_asoc_utils_fini(&machine->util_data); err_free_machine: kfree(machine); return ret; } static int __devexit tegra_rt5640_driver_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(card); struct tegra_rt5640_platform_data *pdata = machine->pdata; if (machine->gpio_requested & GPIO_HP_DET) snd_soc_jack_free_gpios(&tegra_rt5640_hp_jack, 1, &tegra_rt5640_hp_jack_gpio); if (machine->gpio_requested & GPIO_EXT_MIC_EN) gpio_free(pdata->gpio_ext_mic_en); if (machine->gpio_requested & GPIO_INT_MIC_EN) gpio_free(pdata->gpio_int_mic_en); if (machine->gpio_requested & GPIO_HP_MUTE) gpio_free(pdata->gpio_hp_mute); if (machine->gpio_requested & GPIO_SPKR_EN) gpio_free(pdata->gpio_spkr_en); machine->gpio_requested = 0; if (machine->spk_reg) regulator_put(machine->spk_reg); if (machine->dmic_reg) regulator_put(machine->dmic_reg); snd_soc_unregister_card(card); tegra_asoc_utils_fini(&machine->util_data); #ifdef CONFIG_SWITCH switch_dev_unregister(&tegra_rt5640_headset_switch); #endif kfree(machine); return 0; } static struct platform_driver tegra_rt5640_driver = { .driver = { .name = DRV_NAME, .owner = THIS_MODULE, .pm = &snd_soc_pm_ops, }, .probe = tegra_rt5640_driver_probe, .remove = __devexit_p(tegra_rt5640_driver_remove), }; static int __init tegra_rt5640_modinit(void) { return platform_driver_register(&tegra_rt5640_driver); } module_init(tegra_rt5640_modinit); static void __exit tegra_rt5640_modexit(void) { platform_driver_unregister(&tegra_rt5640_driver); } module_exit(tegra_rt5640_modexit); MODULE_AUTHOR("Johnny Qiu "); MODULE_DESCRIPTION("Tegra+RT5640 machine ASoC driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:" DRV_NAME);