326 lines
8.8 KiB
C
326 lines
8.8 KiB
C
// 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");
|