/* * tegra_max98095.c - Tegra machine ASoC driver for boards using MAX98095 codec. * * Author: Ravindra Lokhande * Copyright (C) 2012 - NVIDIA, Inc. * * Based on version from Sumit Bhattacharya * * Based on code copyright/by: * * (c) 2010, 2011, 2012 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/max98095.h" #include "tegra_pcm.h" #include "tegra_asoc_utils.h" #ifndef CONFIG_ARCH_TEGRA_2x_SOC #include "tegra30_ahub.h" #include "tegra30_i2s.h" #include "tegra30_dam.h" #endif #define DRV_NAME "tegra-snd-max98095" #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) #ifndef CONFIG_ARCH_TEGRA_2x_SOC const char *tegra_max98095_i2s_dai_name[TEGRA30_NR_I2S_IFC] = { "tegra30-i2s.0", "tegra30-i2s.1", "tegra30-i2s.2", "tegra30-i2s.3", "tegra30-i2s.4", }; #endif struct tegra_max98095 { struct tegra_asoc_utils_data util_data; struct tegra_asoc_platform_data *pdata; int gpio_requested; bool init_done; int is_call_mode; int is_device_bt; #ifndef CONFIG_ARCH_TEGRA_2x_SOC struct codec_config codec_info[NUM_I2S_DEVICES]; #endif enum snd_soc_bias_level bias_level; }; #ifndef CONFIG_ARCH_TEGRA_2x_SOC static int tegra_max98095_set_dam_cif(int dam_ifc, int srate, int channels, int bit_size) { tegra30_dam_set_samplerate(dam_ifc, TEGRA30_DAM_CHOUT, srate); tegra30_dam_set_samplerate(dam_ifc, TEGRA30_DAM_CHIN1, srate); tegra30_dam_set_acif(dam_ifc, TEGRA30_DAM_CHIN1, channels, bit_size, channels, bit_size); tegra30_dam_set_acif(dam_ifc, TEGRA30_DAM_CHOUT, channels, bit_size, channels, bit_size); return 0; } #endif static int tegra_max98095_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_max98095 *machine = snd_soc_card_get_drvdata(card); #ifndef CONFIG_ARCH_TEGRA_2x_SOC struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(cpu_dai); #endif unsigned int srate, mclk, sample_size; int err; switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: sample_size = 16; break; default: return -EINVAL; } srate = params_rate(params); switch (srate) { case 8000: case 16000: case 24000: case 32000: case 48000: case 64000: case 96000: mclk = 12288000; break; case 11025: case 22050: case 44100: case 88200: mclk = 11289600; break; default: mclk = 12000000; break; } 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); err = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); if (err < 0) { dev_err(card->dev, "codec_dai fmt not set\n"); return err; } err = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | 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; } 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; } #ifndef CONFIG_ARCH_TEGRA_2x_SOC if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) tegra_max98095_set_dam_cif(i2s->dam_ifc, srate, params_channels(params), sample_size); #endif 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_max98095 *machine = snd_soc_card_get_drvdata(card); unsigned 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_max98095 *machine = snd_soc_card_get_drvdata(rtd->card); tegra_asoc_utils_lock_clk_rate(&machine->util_data, 0); return 0; } #ifndef CONFIG_ARCH_TEGRA_2x_SOC static int tegra_max98095_startup(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(cpu_dai); if ((substream->stream != SNDRV_PCM_STREAM_PLAYBACK) || !(i2s->is_dam_used)) return 0; /*dam configuration*/ if (!i2s->dam_ch_refcount) i2s->dam_ifc = tegra30_dam_allocate_controller(); tegra30_dam_allocate_channel(i2s->dam_ifc, TEGRA30_DAM_CHIN1); i2s->dam_ch_refcount++; tegra30_dam_enable_clock(i2s->dam_ifc); tegra30_dam_set_gain(i2s->dam_ifc, TEGRA30_DAM_CHIN1, 0x1000); tegra30_ahub_set_rx_cif_source(TEGRA30_AHUB_RXCIF_DAM0_RX1 + (i2s->dam_ifc*2), i2s->txcif); /* *make the dam tx to i2s rx connection if this is the only client *using i2s for playback */ if (i2s->playback_ref_count == 1) tegra30_ahub_set_rx_cif_source( TEGRA30_AHUB_RXCIF_I2S0_RX0 + i2s->id, TEGRA30_AHUB_TXCIF_DAM0_TX0 + i2s->dam_ifc); /* enable the dam*/ tegra30_dam_enable(i2s->dam_ifc, TEGRA30_DAM_ENABLE, TEGRA30_DAM_CHIN1); return 0; } static void tegra_max98095_shutdown(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(cpu_dai); if ((substream->stream != SNDRV_PCM_STREAM_PLAYBACK) || !(i2s->is_dam_used)) return; /* disable the dam*/ tegra30_dam_enable(i2s->dam_ifc, TEGRA30_DAM_DISABLE, TEGRA30_DAM_CHIN1); /* disconnect the ahub connections*/ tegra30_ahub_unset_rx_cif_source(TEGRA30_AHUB_RXCIF_DAM0_RX1 + (i2s->dam_ifc*2)); /* disable the dam and free the controller */ tegra30_dam_disable_clock(i2s->dam_ifc); tegra30_dam_free_channel(i2s->dam_ifc, TEGRA30_DAM_CHIN1); i2s->dam_ch_refcount--; if (!i2s->dam_ch_refcount) tegra30_dam_free_controller(i2s->dam_ifc); return; } #endif static struct snd_soc_ops tegra_max98095_ops = { .hw_params = tegra_max98095_hw_params, .hw_free = tegra_hw_free, #ifndef CONFIG_ARCH_TEGRA_2x_SOC .startup = tegra_max98095_startup, .shutdown = tegra_max98095_shutdown, #endif }; 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_max98095_hp_jack; #ifdef CONFIG_SWITCH static struct switch_dev wired_switch_dev = { .name = "h2w", }; /* These values are copied from WiredAccessoryObserver */ enum headset_state { BIT_NO_HEADSET = 0, BIT_HEADSET = (1 << 0), BIT_HEADSET_NO_MIC = (1 << 1), }; static int headset_switch_notify(struct notifier_block *self, unsigned long action, void *dev) { int state = 0; switch (action) { case SND_JACK_HEADPHONE: state |= BIT_HEADSET_NO_MIC; break; case SND_JACK_HEADSET: state |= BIT_HEADSET; break; default: state |= BIT_NO_HEADSET; } switch_set_state(&wired_switch_dev, state); return NOTIFY_OK; } static struct notifier_block headset_switch_nb = { .notifier_call = headset_switch_notify, }; #else static struct snd_soc_jack_pin tegra_max98095_hp_jack_pins[] = { { .pin = "Headphone Jack", .mask = SND_JACK_HEADPHONE, }, }; #endif static int tegra_max98095_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_max98095 *machine = snd_soc_card_get_drvdata(card); struct tegra_asoc_platform_data *pdata = machine->pdata; 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_max98095_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_max98095 *machine = snd_soc_card_get_drvdata(card); struct tegra_asoc_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 const struct snd_soc_dapm_widget tegra_max98095_dapm_widgets[] = { SND_SOC_DAPM_SPK("Int Spk", tegra_max98095_event_int_spk), SND_SOC_DAPM_HP("Headphone Jack", tegra_max98095_event_hp), SND_SOC_DAPM_MIC("Mic Jack", NULL), SND_SOC_DAPM_INPUT("Int Mic"), SND_SOC_DAPM_LINE("Line In", NULL), }; static const struct snd_soc_dapm_route enterprise_audio_map[] = { {"Int Spk", NULL, "SPKL"}, {"Int Spk", NULL, "SPKR"}, {"Headphone Jack", NULL, "HPL"}, {"Headphone Jack", NULL, "HPR"}, {"MICBIAS2", NULL, "Mic Jack"}, {"MIC2", NULL, "MICBIAS2"}, {"MIC1", NULL, "Int Mic"}, {"MIC1", NULL, "MICBIAS1"}, {"INB1", NULL, "Line In"}, {"INB2", NULL, "Line In"}, }; static const struct snd_kcontrol_new tegra_max98095_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"), SOC_DAPM_PIN_SWITCH("LineIn"), }; static int tegra_max98095_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_max98095 *machine = snd_soc_card_get_drvdata(card); struct tegra_asoc_platform_data *pdata = machine->pdata; #ifndef CONFIG_ARCH_TEGRA_2x_SOC struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(rtd->cpu_dai); #endif int ret; #ifndef CONFIG_ARCH_TEGRA_2x_SOC if (machine->codec_info[BASEBAND].i2s_id != -1) i2s->is_dam_used = true; #endif if (machine->init_done) return 0; machine->init_done = true; 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, tegra_max98095_controls, ARRAY_SIZE(tegra_max98095_controls)); if (ret < 0) return ret; snd_soc_dapm_new_controls(dapm, tegra_max98095_dapm_widgets, ARRAY_SIZE(tegra_max98095_dapm_widgets)); snd_soc_dapm_add_routes(dapm, enterprise_audio_map, ARRAY_SIZE(enterprise_audio_map)); ret = snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET, &tegra_max98095_hp_jack); if (ret < 0) return ret; #ifdef CONFIG_SWITCH snd_soc_jack_notifier_register(&tegra_max98095_hp_jack, &headset_switch_nb); #else /*gpio based headset detection*/ snd_soc_jack_add_pins(&tegra_max98095_hp_jack, ARRAY_SIZE(tegra_max98095_hp_jack_pins), tegra_max98095_hp_jack_pins); #endif /* max98095_headset_detect(codec, &tegra_max98095_hp_jack, SND_JACK_HEADSET); */ snd_soc_dapm_nc_pin(dapm, "INA1"); snd_soc_dapm_nc_pin(dapm, "INA2"); snd_soc_dapm_nc_pin(dapm, "INB1"); snd_soc_dapm_nc_pin(dapm, "INB2"); snd_soc_dapm_sync(dapm); return 0; } static struct snd_soc_dai_link tegra_max98095_dai[] = { { .name = "MAX98095", .stream_name = "MAX98095 HIFI", .codec_name = "max98095.4-0010", .platform_name = "tegra-pcm-audio", .cpu_dai_name = "tegra30-i2s.1", .codec_dai_name = "HiFi", .init = tegra_max98095_init, .ops = &tegra_max98095_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, }, }; static int tegra30_soc_set_bias_level(struct snd_soc_card *card, enum snd_soc_bias_level level) { struct tegra_max98095 *machine = snd_soc_card_get_drvdata(card); if (machine->bias_level == SND_SOC_BIAS_OFF && level != SND_SOC_BIAS_OFF) tegra_asoc_utils_clk_enable(&machine->util_data); machine->bias_level = level; return 0; } static int tegra30_soc_set_bias_level_post(struct snd_soc_card *card, enum snd_soc_bias_level level) { struct tegra_max98095 *machine = snd_soc_card_get_drvdata(card); if (level == SND_SOC_BIAS_OFF) tegra_asoc_utils_clk_disable(&machine->util_data); return 0 ; } static struct snd_soc_card snd_soc_tegra_max98095 = { .name = "tegra-max98095", .dai_link = tegra_max98095_dai, .num_links = ARRAY_SIZE(tegra_max98095_dai), .set_bias_level = tegra30_soc_set_bias_level, .set_bias_level_post = tegra30_soc_set_bias_level_post, }; static __devinit int tegra_max98095_driver_probe(struct platform_device *pdev) { struct snd_soc_card *card = &snd_soc_tegra_max98095; struct tegra_max98095 *machine; struct tegra_asoc_platform_data *pdata; int ret; pdata = pdev->dev.platform_data; if (!pdata) { dev_err(&pdev->dev, "No platform data supplied\n"); return -EINVAL; } machine = kzalloc(sizeof(struct tegra_max98095), GFP_KERNEL); if (!machine) { dev_err(&pdev->dev, "Can't allocate tegra_max98095 struct\n"); return -ENOMEM; } machine->pdata = pdata; ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev, card); if (ret) goto err_free_machine; card->dev = &pdev->dev; platform_set_drvdata(pdev, card); snd_soc_card_set_drvdata(card, machine); #ifdef CONFIG_SWITCH /* Add h2w switch class support */ ret = switch_dev_register(&wired_switch_dev); if (ret < 0) { dev_err(&pdev->dev, "not able to register switch device\n"); goto err_fini_utils; } #endif ret = snd_soc_register_card(card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); goto err_switch_unregister; } return 0; err_switch_unregister: #ifdef CONFIG_SWITCH switch_dev_unregister(&wired_switch_dev); #endif err_fini_utils: tegra_asoc_utils_fini(&machine->util_data); err_free_machine: kfree(machine); return ret; } static int __devexit tegra_max98095_driver_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); struct tegra_max98095 *machine = snd_soc_card_get_drvdata(card); struct tegra_asoc_platform_data *pdata = machine->pdata; snd_soc_unregister_card(card); #ifdef CONFIG_SWITCH switch_dev_unregister(&wired_switch_dev); #endif tegra_asoc_utils_fini(&machine->util_data); 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); kfree(machine); return 0; } static struct platform_driver tegra_max98095_driver = { .driver = { .name = DRV_NAME, .owner = THIS_MODULE, .pm = &snd_soc_pm_ops, }, .probe = tegra_max98095_driver_probe, .remove = __devexit_p(tegra_max98095_driver_remove), }; static int __init tegra_max98095_modinit(void) { return platform_driver_register(&tegra_max98095_driver); } module_init(tegra_max98095_modinit); static void __exit tegra_max98095_modexit(void) { platform_driver_unregister(&tegra_max98095_driver); } module_exit(tegra_max98095_modexit); MODULE_AUTHOR("Ravindra Lokhande "); MODULE_DESCRIPTION("Tegra+MAX98095 machine ASoC driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:" DRV_NAME);