--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * ASoC machine driver for Intel Broadwell platforms with RT5650 codec
+ *
+ * Copyright 2019, The Chromium OS Authors. All rights reserved.
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+
+#include "../common/sst-dsp.h"
+#include "../haswell/sst-haswell-ipc.h"
+
+#include "../../codecs/rt5645.h"
+
+struct bdw_rt5650_priv {
+ struct gpio_desc *gpio_hp_en;
+ struct snd_soc_component *component;
+};
+
+static const struct snd_soc_dapm_widget bdw_rt5650_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone", NULL),
+ SND_SOC_DAPM_SPK("Speaker", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("DMIC Pair1", NULL),
+ SND_SOC_DAPM_MIC("DMIC Pair2", NULL),
+};
+
+static const struct snd_soc_dapm_route bdw_rt5650_map[] = {
+ /* Speakers */
+ {"Speaker", NULL, "SPOL"},
+ {"Speaker", NULL, "SPOR"},
+
+ /* Headset jack connectors */
+ {"Headphone", NULL, "HPOL"},
+ {"Headphone", NULL, "HPOR"},
+ {"IN1P", NULL, "Headset Mic"},
+ {"IN1N", NULL, "Headset Mic"},
+
+ /* Digital MICs
+ * DMIC Pair1 are the two DMICs connected on the DMICN1 connector.
+ * DMIC Pair2 are the two DMICs connected on the DMICN2 connector.
+ * Facing the camera, DMIC Pair1 are on the left side, DMIC Pair2
+ * are on the right side.
+ */
+ {"DMIC L1", NULL, "DMIC Pair1"},
+ {"DMIC R1", NULL, "DMIC Pair1"},
+ {"DMIC L2", NULL, "DMIC Pair2"},
+ {"DMIC R2", NULL, "DMIC Pair2"},
+
+ /* CODEC BE connections */
+ {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
+ {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
+};
+
+static const struct snd_kcontrol_new bdw_rt5650_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Speaker"),
+ SOC_DAPM_PIN_SWITCH("Headphone"),
+ SOC_DAPM_PIN_SWITCH("Headset Mic"),
+ SOC_DAPM_PIN_SWITCH("DMIC Pair1"),
+ SOC_DAPM_PIN_SWITCH("DMIC Pair2"),
+};
+
+
+static struct snd_soc_jack headphone_jack;
+static struct snd_soc_jack mic_jack;
+
+static struct snd_soc_jack_pin headphone_jack_pin = {
+ .pin = "Headphone",
+ .mask = SND_JACK_HEADPHONE,
+};
+
+static struct snd_soc_jack_pin mic_jack_pin = {
+ .pin = "Headset Mic",
+ .mask = SND_JACK_MICROPHONE,
+};
+
+static int broadwell_ssp0_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 ADSP will covert the FE rate to 48k, max 4-channels */
+ rate->min = rate->max = 48000;
+ channels->min = 2;
+ channels->max = 4;
+
+ /* set SSP0 to 24 bit */
+ snd_mask_set_format(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
+ SNDRV_PCM_FORMAT_S24_LE);
+
+ return 0;
+}
+
+static int bdw_rt5650_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;
+
+ /* Workaround: set codec PLL to 19.2MHz that PLL source is
+ * from MCLK(24MHz) to conform 2.4MHz DMIC clock.
+ */
+ ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK,
+ 24000000, 19200000);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
+ return ret;
+ }
+
+ /* The actual MCLK freq is 24MHz. The codec is told that MCLK is
+ * 24.576MHz to satisfy the requirement of rl6231_get_clk_info.
+ * ASRC is enabled on AD and DA filters to ensure good audio quality.
+ */
+ ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1, 24576000,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set codec sysclk configuration\n");
+ return ret;
+ }
+
+ return ret;
+}
+
+static struct snd_soc_ops bdw_rt5650_ops = {
+ .hw_params = bdw_rt5650_hw_params,
+};
+
+#if !IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
+static int bdw_rt5650_rtd_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_component *component =
+ snd_soc_rtdcom_lookup(rtd, DRV_NAME);
+ struct sst_pdata *pdata = dev_get_platdata(component->dev);
+ struct sst_hsw *broadwell = pdata->dsp;
+ int ret;
+
+ /* Set ADSP SSP port settings
+ * clock_divider = 4 means BCLK = MCLK/5 = 24MHz/5 = 4.8MHz
+ */
+ ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0,
+ SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
+ SST_HSW_DEVICE_TDM_CLOCK_MASTER, 4);
+ if (ret < 0) {
+ dev_err(rtd->dev, "error: failed to set device config\n");
+ return ret;
+ }
+
+ return 0;
+}
+#endif
+
+static int bdw_rt5650_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct bdw_rt5650_priv *bdw_rt5650 =
+ snd_soc_card_get_drvdata(rtd->card);
+ struct snd_soc_component *component = rtd->codec_dai->component;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ int ret;
+
+ /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1.
+ * The ASRC clock source is clk_i2s1_asrc.
+ */
+ rt5645_sel_asrc_clk_src(component,
+ RT5645_DA_STEREO_FILTER |
+ RT5645_DA_MONO_L_FILTER |
+ RT5645_DA_MONO_R_FILTER |
+ RT5645_AD_STEREO_FILTER |
+ RT5645_AD_MONO_L_FILTER |
+ RT5645_AD_MONO_R_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(rtd->dev, "can't set codec TDM slot %d\n", ret);
+ return ret;
+ }
+
+ /* Create and initialize headphone jack */
+ if (snd_soc_card_jack_new(rtd->card, "Headphone Jack",
+ SND_JACK_HEADPHONE, &headphone_jack,
+ &headphone_jack_pin, 1)) {
+ dev_err(component->dev, "Can't create headphone jack\n");
+ }
+
+ /* Create and initialize mic jack */
+ if (snd_soc_card_jack_new(rtd->card, "Mic Jack", SND_JACK_MICROPHONE,
+ &mic_jack, &mic_jack_pin, 1)) {
+ dev_err(component->dev, "Can't create mic jack\n");
+ }
+
+ rt5645_set_jack_detect(component, &headphone_jack, &mic_jack, NULL);
+
+ bdw_rt5650->component = component;
+
+ return 0;
+}
+
+/* broadwell digital audio interface glue - connects codec <--> CPU */
+SND_SOC_DAILINK_DEF(dummy,
+ DAILINK_COMP_ARRAY(COMP_DUMMY()));
+
+SND_SOC_DAILINK_DEF(fe,
+ DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
+
+SND_SOC_DAILINK_DEF(platform,
+ DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio")));
+
+SND_SOC_DAILINK_DEF(be,
+ DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5650:00", "rt5645-aif1")));
+
+static struct snd_soc_dai_link bdw_rt5650_dais[] = {
+ /* Front End DAI links */
+ {
+ .name = "System PCM",
+ .stream_name = "System Playback",
+ .dynamic = 1,
+#if !IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
+ .init = bdw_rt5650_rtd_init,
+#endif
+ .trigger = {
+ SND_SOC_DPCM_TRIGGER_POST,
+ SND_SOC_DPCM_TRIGGER_POST
+ },
+ .dpcm_playback = 1,
+ .dpcm_capture = 1,
+ SND_SOC_DAILINK_REG(fe, dummy, platform),
+ },
+
+ /* Back End DAI links */
+ {
+ /* SSP0 - Codec */
+ .name = "Codec",
+ .id = 0,
+ .no_pcm = 1,
+ .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS,
+ .ignore_suspend = 1,
+ .ignore_pmdown_time = 1,
+ .be_hw_params_fixup = broadwell_ssp0_fixup,
+ .ops = &bdw_rt5650_ops,
+ .dpcm_playback = 1,
+ .dpcm_capture = 1,
+ .init = bdw_rt5650_init,
+ SND_SOC_DAILINK_REG(dummy, be, dummy),
+ },
+};
+
+/* ASoC machine driver for Broadwell DSP + RT5650 */
+static struct snd_soc_card bdw_rt5650_card = {
+ .name = "bdw-rt5650",
+ .owner = THIS_MODULE,
+ .dai_link = bdw_rt5650_dais,
+ .num_links = ARRAY_SIZE(bdw_rt5650_dais),
+ .dapm_widgets = bdw_rt5650_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(bdw_rt5650_widgets),
+ .dapm_routes = bdw_rt5650_map,
+ .num_dapm_routes = ARRAY_SIZE(bdw_rt5650_map),
+ .controls = bdw_rt5650_controls,
+ .num_controls = ARRAY_SIZE(bdw_rt5650_controls),
+ .fully_routed = true,
+};
+
+static int bdw_rt5650_probe(struct platform_device *pdev)
+{
+ struct bdw_rt5650_priv *bdw_rt5650;
+ struct snd_soc_acpi_mach *mach;
+ int ret;
+
+ bdw_rt5650_card.dev = &pdev->dev;
+
+ /* Allocate driver private struct */
+ bdw_rt5650 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5650_priv),
+ GFP_KERNEL);
+ if (!bdw_rt5650)
+ return -ENOMEM;
+
+ /* override plaform name, if required */
+ mach = (&pdev->dev)->platform_data;
+ ret = snd_soc_fixup_dai_links_platform_name(&bdw_rt5650_card,
+ mach->mach_params.platform);
+
+ if (ret)
+ return ret;
+
+ snd_soc_card_set_drvdata(&bdw_rt5650_card, bdw_rt5650);
+
+ return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5650_card);
+}
+
+static struct platform_driver bdw_rt5650_audio = {
+ .probe = bdw_rt5650_probe,
+ .driver = {
+ .name = "bdw-rt5650",
+ .pm = &snd_soc_pm_ops,
+ },
+};
+
+module_platform_driver(bdw_rt5650_audio)
+
+/* Module information */
+MODULE_AUTHOR("Ben Zhang <benzh@chromium.org>");
+MODULE_DESCRIPTION("Intel Broadwell RT5650 machine driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:bdw-rt5650");
projects / platform / kernel / linux-rpi.git / commitdiff