| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) 2015 The Linux Foundation. All rights reserved. |
| */ |
| |
| #include <linux/device.h> |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/io.h> |
| #include <linux/of.h> |
| #include <linux/clk.h> |
| #include <linux/platform_device.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/jack.h> |
| #include <sound/soc.h> |
| #include <uapi/linux/input-event-codes.h> |
| #include <dt-bindings/sound/apq8016-lpass.h> |
| #include "common.h" |
| #include "qdsp6/q6afe.h" |
| |
| #define MI2S_COUNT (MI2S_QUATERNARY + 1) |
| |
| struct apq8016_sbc_data { |
| struct snd_soc_card card; |
| void __iomem *mic_iomux; |
| void __iomem *spkr_iomux; |
| struct snd_soc_jack jack; |
| bool jack_setup; |
| int mi2s_clk_count[MI2S_COUNT]; |
| }; |
| |
| #define MIC_CTRL_TER_WS_SLAVE_SEL BIT(21) |
| #define MIC_CTRL_QUA_WS_SLAVE_SEL_10 BIT(17) |
| #define MIC_CTRL_TLMM_SCLK_EN BIT(1) |
| #define SPKR_CTL_PRI_WS_SLAVE_SEL_11 (BIT(17) | BIT(16)) |
| #define SPKR_CTL_TLMM_MCLK_EN BIT(1) |
| #define SPKR_CTL_TLMM_SCLK_EN BIT(2) |
| #define SPKR_CTL_TLMM_DATA1_EN BIT(3) |
| #define SPKR_CTL_TLMM_WS_OUT_SEL_MASK GENMASK(7, 6) |
| #define SPKR_CTL_TLMM_WS_OUT_SEL_SEC BIT(6) |
| #define SPKR_CTL_TLMM_WS_EN_SEL_MASK GENMASK(19, 18) |
| #define SPKR_CTL_TLMM_WS_EN_SEL_SEC BIT(18) |
| #define DEFAULT_MCLK_RATE 9600000 |
| #define MI2S_BCLK_RATE 1536000 |
| |
| static int apq8016_dai_init(struct snd_soc_pcm_runtime *rtd, int mi2s) |
| { |
| struct snd_soc_dai *codec_dai; |
| struct snd_soc_component *component; |
| struct snd_soc_card *card = rtd->card; |
| struct apq8016_sbc_data *pdata = snd_soc_card_get_drvdata(card); |
| int i, rval; |
| u32 value; |
| |
| switch (mi2s) { |
| case MI2S_PRIMARY: |
| writel(readl(pdata->spkr_iomux) | SPKR_CTL_PRI_WS_SLAVE_SEL_11, |
| pdata->spkr_iomux); |
| break; |
| |
| case MI2S_QUATERNARY: |
| /* Configure the Quat MI2S to TLMM */ |
| writel(readl(pdata->mic_iomux) | MIC_CTRL_QUA_WS_SLAVE_SEL_10 | |
| MIC_CTRL_TLMM_SCLK_EN, |
| pdata->mic_iomux); |
| break; |
| case MI2S_SECONDARY: |
| /* Clear TLMM_WS_OUT_SEL and TLMM_WS_EN_SEL fields */ |
| value = readl(pdata->spkr_iomux) & |
| ~(SPKR_CTL_TLMM_WS_OUT_SEL_MASK | SPKR_CTL_TLMM_WS_EN_SEL_MASK); |
| /* Configure the Sec MI2S to TLMM */ |
| writel(value | SPKR_CTL_TLMM_MCLK_EN | SPKR_CTL_TLMM_SCLK_EN | |
| SPKR_CTL_TLMM_DATA1_EN | SPKR_CTL_TLMM_WS_OUT_SEL_SEC | |
| SPKR_CTL_TLMM_WS_EN_SEL_SEC, pdata->spkr_iomux); |
| break; |
| case MI2S_TERTIARY: |
| writel(readl(pdata->mic_iomux) | MIC_CTRL_TER_WS_SLAVE_SEL | |
| MIC_CTRL_TLMM_SCLK_EN, |
| pdata->mic_iomux); |
| |
| break; |
| |
| default: |
| dev_err(card->dev, "unsupported cpu dai configuration\n"); |
| return -EINVAL; |
| |
| } |
| |
| if (!pdata->jack_setup) { |
| struct snd_jack *jack; |
| |
| rval = snd_soc_card_jack_new(card, "Headset Jack", |
| SND_JACK_HEADSET | |
| SND_JACK_HEADPHONE | |
| SND_JACK_BTN_0 | SND_JACK_BTN_1 | |
| SND_JACK_BTN_2 | SND_JACK_BTN_3 | |
| SND_JACK_BTN_4, |
| &pdata->jack, NULL, 0); |
| |
| if (rval < 0) { |
| dev_err(card->dev, "Unable to add Headphone Jack\n"); |
| return rval; |
| } |
| |
| jack = pdata->jack.jack; |
| |
| snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); |
| snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); |
| snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP); |
| snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); |
| pdata->jack_setup = true; |
| } |
| |
| for_each_rtd_codec_dais(rtd, i, codec_dai) { |
| |
| component = codec_dai->component; |
| /* Set default mclk for internal codec */ |
| rval = snd_soc_component_set_sysclk(component, 0, 0, DEFAULT_MCLK_RATE, |
| SND_SOC_CLOCK_IN); |
| if (rval != 0 && rval != -ENOTSUPP) { |
| dev_warn(card->dev, "Failed to set mclk: %d\n", rval); |
| return rval; |
| } |
| rval = snd_soc_component_set_jack(component, &pdata->jack, NULL); |
| if (rval != 0 && rval != -ENOTSUPP) { |
| dev_warn(card->dev, "Failed to set jack: %d\n", rval); |
| return rval; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd) |
| { |
| struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
| |
| return apq8016_dai_init(rtd, cpu_dai->id); |
| } |
| |
| static void apq8016_sbc_add_ops(struct snd_soc_card *card) |
| { |
| struct snd_soc_dai_link *link; |
| int i; |
| |
| for_each_card_prelinks(card, i, link) |
| link->init = apq8016_sbc_dai_init; |
| } |
| |
| static int qdsp6_dai_get_lpass_id(struct snd_soc_dai *cpu_dai) |
| { |
| switch (cpu_dai->id) { |
| case PRIMARY_MI2S_RX: |
| case PRIMARY_MI2S_TX: |
| return MI2S_PRIMARY; |
| case SECONDARY_MI2S_RX: |
| case SECONDARY_MI2S_TX: |
| return MI2S_SECONDARY; |
| case TERTIARY_MI2S_RX: |
| case TERTIARY_MI2S_TX: |
| return MI2S_TERTIARY; |
| case QUATERNARY_MI2S_RX: |
| case QUATERNARY_MI2S_TX: |
| return MI2S_QUATERNARY; |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| static int msm8916_qdsp6_dai_init(struct snd_soc_pcm_runtime *rtd) |
| { |
| struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
| |
| snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBS_CFS); |
| return apq8016_dai_init(rtd, qdsp6_dai_get_lpass_id(cpu_dai)); |
| } |
| |
| static int msm8916_qdsp6_startup(struct snd_pcm_substream *substream) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct snd_soc_card *card = rtd->card; |
| struct apq8016_sbc_data *data = snd_soc_card_get_drvdata(card); |
| struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
| int mi2s, ret; |
| |
| mi2s = qdsp6_dai_get_lpass_id(cpu_dai); |
| if (mi2s < 0) |
| return mi2s; |
| |
| if (++data->mi2s_clk_count[mi2s] > 1) |
| return 0; |
| |
| ret = snd_soc_dai_set_sysclk(cpu_dai, LPAIF_BIT_CLK, MI2S_BCLK_RATE, 0); |
| if (ret) |
| dev_err(card->dev, "Failed to enable LPAIF bit clk: %d\n", ret); |
| return ret; |
| } |
| |
| static void msm8916_qdsp6_shutdown(struct snd_pcm_substream *substream) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct snd_soc_card *card = rtd->card; |
| struct apq8016_sbc_data *data = snd_soc_card_get_drvdata(card); |
| struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
| int mi2s, ret; |
| |
| mi2s = qdsp6_dai_get_lpass_id(cpu_dai); |
| if (mi2s < 0) |
| return; |
| |
| if (--data->mi2s_clk_count[mi2s] > 0) |
| return; |
| |
| ret = snd_soc_dai_set_sysclk(cpu_dai, LPAIF_BIT_CLK, 0, 0); |
| if (ret) |
| dev_err(card->dev, "Failed to disable LPAIF bit clk: %d\n", ret); |
| } |
| |
| static const struct snd_soc_ops msm8916_qdsp6_be_ops = { |
| .startup = msm8916_qdsp6_startup, |
| .shutdown = msm8916_qdsp6_shutdown, |
| }; |
| |
| static int msm8916_qdsp6_be_hw_params_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); |
| struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); |
| |
| rate->min = rate->max = 48000; |
| channels->min = channels->max = 2; |
| snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); |
| |
| return 0; |
| } |
| |
| static void msm8916_qdsp6_add_ops(struct snd_soc_card *card) |
| { |
| struct snd_soc_dai_link *link; |
| int i; |
| |
| /* Make it obvious to userspace that QDSP6 is used */ |
| card->components = "qdsp6"; |
| |
| for_each_card_prelinks(card, i, link) { |
| if (link->no_pcm) { |
| link->init = msm8916_qdsp6_dai_init; |
| link->ops = &msm8916_qdsp6_be_ops; |
| link->be_hw_params_fixup = msm8916_qdsp6_be_hw_params_fixup; |
| } |
| } |
| } |
| |
| static const struct snd_soc_dapm_widget apq8016_sbc_dapm_widgets[] = { |
| |
| SND_SOC_DAPM_MIC("Handset Mic", NULL), |
| SND_SOC_DAPM_MIC("Headset Mic", NULL), |
| SND_SOC_DAPM_MIC("Secondary Mic", NULL), |
| SND_SOC_DAPM_MIC("Digital Mic1", NULL), |
| SND_SOC_DAPM_MIC("Digital Mic2", NULL), |
| }; |
| |
| static int apq8016_sbc_platform_probe(struct platform_device *pdev) |
| { |
| void (*add_ops)(struct snd_soc_card *card); |
| struct device *dev = &pdev->dev; |
| struct snd_soc_card *card; |
| struct apq8016_sbc_data *data; |
| int ret; |
| |
| add_ops = device_get_match_data(&pdev->dev); |
| if (!add_ops) |
| return -EINVAL; |
| |
| data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); |
| if (!data) |
| return -ENOMEM; |
| |
| card = &data->card; |
| card->dev = dev; |
| card->owner = THIS_MODULE; |
| card->dapm_widgets = apq8016_sbc_dapm_widgets; |
| card->num_dapm_widgets = ARRAY_SIZE(apq8016_sbc_dapm_widgets); |
| |
| ret = qcom_snd_parse_of(card); |
| if (ret) |
| return ret; |
| |
| data->mic_iomux = devm_platform_ioremap_resource_byname(pdev, "mic-iomux"); |
| if (IS_ERR(data->mic_iomux)) |
| return PTR_ERR(data->mic_iomux); |
| |
| data->spkr_iomux = devm_platform_ioremap_resource_byname(pdev, "spkr-iomux"); |
| if (IS_ERR(data->spkr_iomux)) |
| return PTR_ERR(data->spkr_iomux); |
| |
| snd_soc_card_set_drvdata(card, data); |
| |
| add_ops(card); |
| return devm_snd_soc_register_card(&pdev->dev, card); |
| } |
| |
| static const struct of_device_id apq8016_sbc_device_id[] __maybe_unused = { |
| { .compatible = "qcom,apq8016-sbc-sndcard", .data = apq8016_sbc_add_ops }, |
| { .compatible = "qcom,msm8916-qdsp6-sndcard", .data = msm8916_qdsp6_add_ops }, |
| {}, |
| }; |
| MODULE_DEVICE_TABLE(of, apq8016_sbc_device_id); |
| |
| static struct platform_driver apq8016_sbc_platform_driver = { |
| .driver = { |
| .name = "qcom-apq8016-sbc", |
| .of_match_table = of_match_ptr(apq8016_sbc_device_id), |
| }, |
| .probe = apq8016_sbc_platform_probe, |
| }; |
| module_platform_driver(apq8016_sbc_platform_driver); |
| |
| MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org"); |
| MODULE_DESCRIPTION("APQ8016 ASoC Machine Driver"); |
| MODULE_LICENSE("GPL v2"); |