summaryrefslogtreecommitdiffstats
path: root/sound/soc/qcom/apq8016_sbc.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/qcom/apq8016_sbc.c')
-rw-r--r--sound/soc/qcom/apq8016_sbc.c325
1 files changed, 325 insertions, 0 deletions
diff --git a/sound/soc/qcom/apq8016_sbc.c b/sound/soc/qcom/apq8016_sbc.c
new file mode 100644
index 000000000..e54b89611
--- /dev/null
+++ b/sound/soc/qcom/apq8016_sbc.c
@@ -0,0 +1,325 @@
+// 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);
+
+ 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_BP_FP);
+ 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");