diff options
Diffstat (limited to 'sound/soc/samsung/tm2_wm5110.c')
| -rw-r--r-- | sound/soc/samsung/tm2_wm5110.c | 677 |
1 files changed, 677 insertions, 0 deletions
diff --git a/sound/soc/samsung/tm2_wm5110.c b/sound/soc/samsung/tm2_wm5110.c new file mode 100644 index 000000000..5ebf17f3d --- /dev/null +++ b/sound/soc/samsung/tm2_wm5110.c @@ -0,0 +1,677 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// Copyright (C) 2015 - 2016 Samsung Electronics Co., Ltd. +// +// Authors: Inha Song <ideal.song@samsung.com> +// Sylwester Nawrocki <s.nawrocki@samsung.com> + +#include <linux/clk.h> +#include <linux/gpio.h> +#include <linux/gpio/consumer.h> +#include <linux/module.h> +#include <linux/of.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include "i2s.h" +#include "../codecs/wm5110.h" + +/* + * The source clock is XCLKOUT with its mux set to the external fixed rate + * oscillator (XXTI). + */ +#define MCLK_RATE 24000000U + +#define TM2_DAI_AIF1 0 +#define TM2_DAI_AIF2 1 + +struct tm2_machine_priv { + struct snd_soc_component *component; + unsigned int sysclk_rate; + struct gpio_desc *gpio_mic_bias; +}; + +static int tm2_start_sysclk(struct snd_soc_card *card) +{ + struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card); + struct snd_soc_component *component = priv->component; + int ret; + + ret = snd_soc_component_set_pll(component, WM5110_FLL1_REFCLK, + ARIZONA_FLL_SRC_MCLK1, + MCLK_RATE, + priv->sysclk_rate); + if (ret < 0) { + dev_err(component->dev, "Failed to set FLL1 source: %d\n", ret); + return ret; + } + + ret = snd_soc_component_set_pll(component, WM5110_FLL1, + ARIZONA_FLL_SRC_MCLK1, + MCLK_RATE, + priv->sysclk_rate); + if (ret < 0) { + dev_err(component->dev, "Failed to start FLL1: %d\n", ret); + return ret; + } + + ret = snd_soc_component_set_sysclk(component, ARIZONA_CLK_SYSCLK, + ARIZONA_CLK_SRC_FLL1, + priv->sysclk_rate, + SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(component->dev, "Failed to set SYSCLK source: %d\n", ret); + return ret; + } + + return 0; +} + +static int tm2_stop_sysclk(struct snd_soc_card *card) +{ + struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card); + struct snd_soc_component *component = priv->component; + int ret; + + ret = snd_soc_component_set_pll(component, WM5110_FLL1, 0, 0, 0); + if (ret < 0) { + dev_err(component->dev, "Failed to stop FLL1: %d\n", ret); + return ret; + } + + ret = snd_soc_component_set_sysclk(component, ARIZONA_CLK_SYSCLK, + ARIZONA_CLK_SRC_FLL1, 0, 0); + if (ret < 0) { + dev_err(component->dev, "Failed to stop SYSCLK: %d\n", ret); + return ret; + } + + return 0; +} + +static int tm2_aif1_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; + struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(rtd->card); + + switch (params_rate(params)) { + case 4000: + case 8000: + case 12000: + case 16000: + case 24000: + case 32000: + case 48000: + case 96000: + case 192000: + /* Highest possible SYSCLK frequency: 147.456MHz */ + priv->sysclk_rate = 147456000U; + break; + case 11025: + case 22050: + case 44100: + case 88200: + case 176400: + /* Highest possible SYSCLK frequency: 135.4752 MHz */ + priv->sysclk_rate = 135475200U; + break; + default: + dev_err(component->dev, "Not supported sample rate: %d\n", + params_rate(params)); + return -EINVAL; + } + + return tm2_start_sysclk(rtd->card); +} + +static const struct snd_soc_ops tm2_aif1_ops = { + .hw_params = tm2_aif1_hw_params, +}; + +static int tm2_aif2_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; + unsigned int asyncclk_rate; + int ret; + + switch (params_rate(params)) { + case 8000: + case 12000: + case 16000: + /* Highest possible ASYNCCLK frequency: 49.152MHz */ + asyncclk_rate = 49152000U; + break; + case 11025: + /* Highest possible ASYNCCLK frequency: 45.1584 MHz */ + asyncclk_rate = 45158400U; + break; + default: + dev_err(component->dev, "Not supported sample rate: %d\n", + params_rate(params)); + return -EINVAL; + } + + ret = snd_soc_component_set_pll(component, WM5110_FLL2_REFCLK, + ARIZONA_FLL_SRC_MCLK1, + MCLK_RATE, + asyncclk_rate); + if (ret < 0) { + dev_err(component->dev, "Failed to set FLL2 source: %d\n", ret); + return ret; + } + + ret = snd_soc_component_set_pll(component, WM5110_FLL2, + ARIZONA_FLL_SRC_MCLK1, + MCLK_RATE, + asyncclk_rate); + if (ret < 0) { + dev_err(component->dev, "Failed to start FLL2: %d\n", ret); + return ret; + } + + ret = snd_soc_component_set_sysclk(component, ARIZONA_CLK_ASYNCCLK, + ARIZONA_CLK_SRC_FLL2, + asyncclk_rate, + SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(component->dev, "Failed to set ASYNCCLK source: %d\n", ret); + return ret; + } + + return 0; +} + +static int tm2_aif2_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; + int ret; + + /* disable FLL2 */ + ret = snd_soc_component_set_pll(component, WM5110_FLL2, ARIZONA_FLL_SRC_MCLK1, + 0, 0); + if (ret < 0) + dev_err(component->dev, "Failed to stop FLL2: %d\n", ret); + + return ret; +} + +static const struct snd_soc_ops tm2_aif2_ops = { + .hw_params = tm2_aif2_hw_params, + .hw_free = tm2_aif2_hw_free, +}; + +static int tm2_hdmi_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + unsigned int bfs; + int bitwidth, ret; + + bitwidth = snd_pcm_format_width(params_format(params)); + if (bitwidth < 0) { + dev_err(rtd->card->dev, "Invalid bit-width: %d\n", bitwidth); + return bitwidth; + } + + switch (bitwidth) { + case 48: + bfs = 64; + break; + case 16: + bfs = 32; + break; + default: + dev_err(rtd->card->dev, "Unsupported bit-width: %d\n", bitwidth); + return -EINVAL; + } + + switch (params_rate(params)) { + case 48000: + case 96000: + case 192000: + break; + default: + dev_err(rtd->card->dev, "Unsupported sample rate: %d\n", + params_rate(params)); + return -EINVAL; + } + + ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_OPCLK, + 0, SAMSUNG_I2S_OPCLK_PCLK); + if (ret < 0) + return ret; + + ret = snd_soc_dai_set_clkdiv(cpu_dai, SAMSUNG_I2S_DIV_BCLK, bfs); + if (ret < 0) + return ret; + + return 0; +} + +static const struct snd_soc_ops tm2_hdmi_ops = { + .hw_params = tm2_hdmi_hw_params, +}; + +static int tm2_mic_bias(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_card *card = w->dapm->card; + struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + gpiod_set_value_cansleep(priv->gpio_mic_bias, 1); + break; + case SND_SOC_DAPM_POST_PMD: + gpiod_set_value_cansleep(priv->gpio_mic_bias, 0); + break; + } + + return 0; +} + +static int tm2_set_bias_level(struct snd_soc_card *card, + struct snd_soc_dapm_context *dapm, + enum snd_soc_bias_level level) +{ + struct snd_soc_pcm_runtime *rtd; + + rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]); + + if (dapm->dev != asoc_rtd_to_codec(rtd, 0)->dev) + return 0; + + switch (level) { + case SND_SOC_BIAS_STANDBY: + if (card->dapm.bias_level == SND_SOC_BIAS_OFF) + tm2_start_sysclk(card); + break; + case SND_SOC_BIAS_OFF: + tm2_stop_sysclk(card); + break; + default: + break; + } + + return 0; +} + +static struct snd_soc_aux_dev tm2_speaker_amp_dev; + +static int tm2_late_probe(struct snd_soc_card *card) +{ + struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card); + unsigned int ch_map[] = { 0, 1 }; + struct snd_soc_dai *amp_pdm_dai; + struct snd_soc_pcm_runtime *rtd; + struct snd_soc_dai *aif1_dai; + struct snd_soc_dai *aif2_dai; + int ret; + + rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[TM2_DAI_AIF1]); + aif1_dai = asoc_rtd_to_codec(rtd, 0); + priv->component = asoc_rtd_to_codec(rtd, 0)->component; + + ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0); + if (ret < 0) { + dev_err(aif1_dai->dev, "Failed to set SYSCLK: %d\n", ret); + return ret; + } + + rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[TM2_DAI_AIF2]); + aif2_dai = asoc_rtd_to_codec(rtd, 0); + + ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0); + if (ret < 0) { + dev_err(aif2_dai->dev, "Failed to set ASYNCCLK: %d\n", ret); + return ret; + } + + amp_pdm_dai = snd_soc_find_dai(&tm2_speaker_amp_dev.dlc); + if (!amp_pdm_dai) + return -ENODEV; + + /* Set the MAX98504 V/I sense PDM Tx DAI channel mapping */ + ret = snd_soc_dai_set_channel_map(amp_pdm_dai, ARRAY_SIZE(ch_map), + ch_map, 0, NULL); + if (ret < 0) + return ret; + + ret = snd_soc_dai_set_tdm_slot(amp_pdm_dai, 0x3, 0x0, 2, 16); + if (ret < 0) + return ret; + + return 0; +} + +static const struct snd_kcontrol_new tm2_controls[] = { + SOC_DAPM_PIN_SWITCH("HP"), + SOC_DAPM_PIN_SWITCH("SPK"), + SOC_DAPM_PIN_SWITCH("RCV"), + SOC_DAPM_PIN_SWITCH("VPS"), + SOC_DAPM_PIN_SWITCH("HDMI"), + + SOC_DAPM_PIN_SWITCH("Main Mic"), + SOC_DAPM_PIN_SWITCH("Sub Mic"), + SOC_DAPM_PIN_SWITCH("Third Mic"), + + SOC_DAPM_PIN_SWITCH("Headset Mic"), +}; + +static const struct snd_soc_dapm_widget tm2_dapm_widgets[] = { + SND_SOC_DAPM_HP("HP", NULL), + SND_SOC_DAPM_SPK("SPK", NULL), + SND_SOC_DAPM_SPK("RCV", NULL), + SND_SOC_DAPM_LINE("VPS", NULL), + SND_SOC_DAPM_LINE("HDMI", NULL), + + SND_SOC_DAPM_MIC("Main Mic", tm2_mic_bias), + SND_SOC_DAPM_MIC("Sub Mic", NULL), + SND_SOC_DAPM_MIC("Third Mic", NULL), + + SND_SOC_DAPM_MIC("Headset Mic", NULL), +}; + +static const struct snd_soc_component_driver tm2_component = { + .name = "tm2-audio", +}; + +static struct snd_soc_dai_driver tm2_ext_dai[] = { + { + .name = "Voice call", + .playback = { + .channels_min = 1, + .channels_max = 4, + .rate_min = 8000, + .rate_max = 48000, + .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | + SNDRV_PCM_RATE_48000), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .channels_min = 1, + .channels_max = 4, + .rate_min = 8000, + .rate_max = 48000, + .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | + SNDRV_PCM_RATE_48000), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + }, + { + .name = "Bluetooth", + .playback = { + .channels_min = 1, + .channels_max = 4, + .rate_min = 8000, + .rate_max = 16000, + .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .channels_min = 1, + .channels_max = 2, + .rate_min = 8000, + .rate_max = 16000, + .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + }, +}; + +SND_SOC_DAILINK_DEFS(aif1, + DAILINK_COMP_ARRAY(COMP_CPU(SAMSUNG_I2S_DAI)), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm5110-aif1")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +SND_SOC_DAILINK_DEFS(voice, + DAILINK_COMP_ARRAY(COMP_CPU(SAMSUNG_I2S_DAI)), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm5110-aif2")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +SND_SOC_DAILINK_DEFS(bt, + DAILINK_COMP_ARRAY(COMP_CPU(SAMSUNG_I2S_DAI)), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm5110-aif3")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +SND_SOC_DAILINK_DEFS(hdmi, + DAILINK_COMP_ARRAY(COMP_EMPTY()), + DAILINK_COMP_ARRAY(COMP_EMPTY()), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +static struct snd_soc_dai_link tm2_dai_links[] = { + { + .name = "WM5110 AIF1", + .stream_name = "HiFi Primary", + .ops = &tm2_aif1_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + SND_SOC_DAILINK_REG(aif1), + }, { + .name = "WM5110 Voice", + .stream_name = "Voice call", + .ops = &tm2_aif2_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + .ignore_suspend = 1, + SND_SOC_DAILINK_REG(voice), + }, { + .name = "WM5110 BT", + .stream_name = "Bluetooth", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + .ignore_suspend = 1, + SND_SOC_DAILINK_REG(bt), + }, { + .name = "HDMI", + .stream_name = "i2s1", + .ops = &tm2_hdmi_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + SND_SOC_DAILINK_REG(hdmi), + } +}; + +static struct snd_soc_card tm2_card = { + .owner = THIS_MODULE, + + .dai_link = tm2_dai_links, + .controls = tm2_controls, + .num_controls = ARRAY_SIZE(tm2_controls), + .dapm_widgets = tm2_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(tm2_dapm_widgets), + .aux_dev = &tm2_speaker_amp_dev, + .num_aux_devs = 1, + + .late_probe = tm2_late_probe, + .set_bias_level = tm2_set_bias_level, +}; + +static int tm2_probe(struct platform_device *pdev) +{ + struct device_node *cpu_dai_node[2] = {}; + struct device_node *codec_dai_node[2] = {}; + const char *cells_name = NULL; + struct device *dev = &pdev->dev; + struct snd_soc_card *card = &tm2_card; + struct tm2_machine_priv *priv; + struct snd_soc_dai_link *dai_link; + int num_codecs, ret, i; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + snd_soc_card_set_drvdata(card, priv); + card->dev = dev; + + priv->gpio_mic_bias = devm_gpiod_get(dev, "mic-bias", GPIOD_OUT_HIGH); + if (IS_ERR(priv->gpio_mic_bias)) { + dev_err(dev, "Failed to get mic bias gpio\n"); + return PTR_ERR(priv->gpio_mic_bias); + } + + ret = snd_soc_of_parse_card_name(card, "model"); + if (ret < 0) { + dev_err(dev, "Card name is not specified\n"); + return ret; + } + + ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); + if (ret < 0) { + /* Backwards compatible way */ + ret = snd_soc_of_parse_audio_routing(card, "samsung,audio-routing"); + if (ret < 0) { + dev_err(dev, "Audio routing is not specified or invalid\n"); + return ret; + } + } + + card->aux_dev[0].dlc.of_node = of_parse_phandle(dev->of_node, + "audio-amplifier", 0); + if (!card->aux_dev[0].dlc.of_node) { + dev_err(dev, "audio-amplifier property invalid or missing\n"); + return -EINVAL; + } + + num_codecs = of_count_phandle_with_args(dev->of_node, "audio-codec", + NULL); + + /* Skip the HDMI link if not specified in DT */ + if (num_codecs > 1) { + card->num_links = ARRAY_SIZE(tm2_dai_links); + cells_name = "#sound-dai-cells"; + } else { + card->num_links = ARRAY_SIZE(tm2_dai_links) - 1; + } + + for (i = 0; i < num_codecs; i++) { + struct of_phandle_args args; + + ret = of_parse_phandle_with_args(dev->of_node, "i2s-controller", + cells_name, i, &args); + if (ret) { + dev_err(dev, "i2s-controller property parse error: %d\n", i); + ret = -EINVAL; + goto dai_node_put; + } + cpu_dai_node[i] = args.np; + + codec_dai_node[i] = of_parse_phandle(dev->of_node, + "audio-codec", i); + if (!codec_dai_node[i]) { + dev_err(dev, "audio-codec property parse error\n"); + ret = -EINVAL; + goto dai_node_put; + } + } + + /* Initialize WM5110 - I2S and HDMI - I2S1 DAI links */ + for_each_card_prelinks(card, i, dai_link) { + unsigned int dai_index = 0; /* WM5110 */ + + dai_link->cpus->name = NULL; + dai_link->platforms->name = NULL; + + if (num_codecs > 1 && i == card->num_links - 1) + dai_index = 1; /* HDMI */ + + dai_link->codecs->of_node = codec_dai_node[dai_index]; + dai_link->cpus->of_node = cpu_dai_node[dai_index]; + dai_link->platforms->of_node = cpu_dai_node[dai_index]; + } + + if (num_codecs > 1) { + struct of_phandle_args args; + + /* HDMI DAI link (I2S1) */ + i = card->num_links - 1; + + ret = of_parse_phandle_with_fixed_args(dev->of_node, + "audio-codec", 0, 1, &args); + if (ret) { + dev_err(dev, "audio-codec property parse error\n"); + goto dai_node_put; + } + + ret = snd_soc_get_dai_name(&args, &card->dai_link[i].codecs->dai_name); + if (ret) { + dev_err(dev, "Unable to get codec_dai_name\n"); + goto dai_node_put; + } + } + + ret = devm_snd_soc_register_component(dev, &tm2_component, + tm2_ext_dai, ARRAY_SIZE(tm2_ext_dai)); + if (ret < 0) { + dev_err(dev, "Failed to register component: %d\n", ret); + goto dai_node_put; + } + + ret = devm_snd_soc_register_card(dev, card); + if (ret < 0) { + dev_err_probe(dev, ret, "Failed to register card\n"); + goto dai_node_put; + } + +dai_node_put: + for (i = 0; i < num_codecs; i++) { + of_node_put(codec_dai_node[i]); + of_node_put(cpu_dai_node[i]); + } + + of_node_put(card->aux_dev[0].dlc.of_node); + + return ret; +} + +static int tm2_pm_prepare(struct device *dev) +{ + struct snd_soc_card *card = dev_get_drvdata(dev); + + return tm2_stop_sysclk(card); +} + +static void tm2_pm_complete(struct device *dev) +{ + struct snd_soc_card *card = dev_get_drvdata(dev); + + tm2_start_sysclk(card); +} + +static const struct dev_pm_ops tm2_pm_ops = { + .prepare = tm2_pm_prepare, + .suspend = snd_soc_suspend, + .resume = snd_soc_resume, + .complete = tm2_pm_complete, + .freeze = snd_soc_suspend, + .thaw = snd_soc_resume, + .poweroff = snd_soc_poweroff, + .restore = snd_soc_resume, +}; + +static const struct of_device_id tm2_of_match[] = { + { .compatible = "samsung,tm2-audio" }, + { }, +}; +MODULE_DEVICE_TABLE(of, tm2_of_match); + +static struct platform_driver tm2_driver = { + .driver = { + .name = "tm2-audio", + .pm = &tm2_pm_ops, + .of_match_table = tm2_of_match, + }, + .probe = tm2_probe, +}; +module_platform_driver(tm2_driver); + +MODULE_AUTHOR("Inha Song <ideal.song@samsung.com>"); +MODULE_DESCRIPTION("ALSA SoC Exynos TM2 Audio Support"); +MODULE_LICENSE("GPL v2"); |