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MLK-18368-2: ASoC: fsl: support hdmi rx in machine driver

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support hdmi rx in machine driver

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
This commit is contained in:
Shengjiu Wang
2018-05-22 15:22:17 +08:00
parent ac24fde0de
commit c5592424ba
1 changed files with 143 additions and 6 deletions
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149
sound/soc/fsl/imx-cdnhdmi.c
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@ -78,19 +78,27 @@ static int imx_cdnhdmi_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_card *card = rtd->card;
struct device *dev = card->dev;
bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
int ret;
/* set cpu DAI configuration */
ret = snd_soc_dai_set_fmt(cpu_dai,
if (tx)
ret = snd_soc_dai_set_fmt(cpu_dai,
SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS);
else
ret = snd_soc_dai_set_fmt(cpu_dai,
SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM);
if (ret) {
dev_err(dev, "failed to set cpu dai fmt: %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_OUT);
ret = snd_soc_dai_set_sysclk(cpu_dai, 0, 0, tx ? SND_SOC_CLOCK_OUT : SND_SOC_CLOCK_IN);
if (ret) {
dev_err(dev, "failed to set cpu sysclk: %d\n", ret);
return ret;
@ -258,6 +266,89 @@ static int imx_cdnhdmi_formats_get(struct snd_kcontrol *kcontrol,
return 0;
}
static int get_edid_rx_info(struct snd_soc_card *card)
{
struct snd_soc_pcm_runtime *rtd = list_first_entry(
&card->rtd_list, struct snd_soc_pcm_runtime, list);
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_codec *codec = codec_dai->codec;
struct hdmi_codec_pdata *hcd = codec->dev->platform_data;
struct imx_cdnhdmi_data *data = snd_soc_card_get_drvdata(card);
int ret;
ret = hcd->ops->get_eld(codec->dev->parent, hcd->data,
data->eld, sizeof(data->eld));
if (ret)
return -EINVAL;
data->edid_rates[0] = data->eld[0] +
(data->eld[1] << 8) +
(data->eld[2] << 16) +
(data->eld[3] << 24);
data->edid_channels[0] = data->eld[4] +
(data->eld[5] << 8) +
(data->eld[6] << 16) +
(data->eld[7] << 24);
return 0;
}
static int imx_cdnhdmi_rx_channels_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 2;
uinfo->value.integer.max = 8;
return 0;
}
static int imx_cdnhdmi_rx_channels_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *uvalue)
{
struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
struct imx_cdnhdmi_data *data = snd_soc_card_get_drvdata(card);
int ret;
ret = get_edid_rx_info(card);
if (ret)
return ret;
uvalue->value.integer.value[0] = data->edid_channels[0];
return 0;
}
static int imx_cdnhdmi_rx_rates_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 16000;
uinfo->value.integer.max = 192000;
return 0;
}
static int imx_cdnhdmi_rx_rates_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *uvalue)
{
struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
struct imx_cdnhdmi_data *data = snd_soc_card_get_drvdata(card);
int ret;
ret = get_edid_rx_info(card);
if (ret)
return ret;
uvalue->value.integer.value[0] = data->edid_rates[0];
return 0;
}
static struct snd_kcontrol_new imx_cdnhdmi_ctrls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@ -285,6 +376,25 @@ static struct snd_kcontrol_new imx_cdnhdmi_ctrls[] = {
},
};
static struct snd_kcontrol_new imx_cdnhdmi_rx_ctrls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "HDMI Rx Channels",
.access = SNDRV_CTL_ELEM_ACCESS_READ |
SNDRV_CTL_ELEM_ACCESS_VOLATILE,
.info = imx_cdnhdmi_rx_channels_info,
.get = imx_cdnhdmi_rx_channels_get,
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "HDMI Rx Rates",
.access = SNDRV_CTL_ELEM_ACCESS_READ |
SNDRV_CTL_ELEM_ACCESS_VOLATILE,
.info = imx_cdnhdmi_rx_rates_info,
.get = imx_cdnhdmi_rx_rates_get,
},
};
static int imx_cdnhdmi_probe(struct platform_device *pdev)
{
struct device_node *cpu_np, *cdnhdmi_np = NULL;
@ -341,8 +451,6 @@ static int imx_cdnhdmi_probe(struct platform_device *pdev)
data->dai.name = "imx8 hdmi";
data->dai.stream_name = "imx8 hdmi";
data->dai.codec_dai_name = "hdmi-hifi.0";
data->dai.codec_name = "hdmi-audio-codec";
data->dai.cpu_dai_name = dev_name(&cpu_pdev->dev);
data->dai.platform_of_node = cpu_np;
data->dai.ops = &imx_cdnhdmi_ops;
@ -352,6 +460,36 @@ static int imx_cdnhdmi_probe(struct platform_device *pdev)
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS;
if (of_property_read_bool(pdev->dev.of_node, "hdmi-out")) {
data->dai.playback_only = true;
data->dai.capture_only = false;
data->dai.dai_fmt = SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS;
data->dai.codec_dai_name = "hdmi-hifi.0";
data->dai.codec_name = "hdmi-audio-codec.1";
data->card.controls = imx_cdnhdmi_ctrls;
data->card.num_controls = ARRAY_SIZE(imx_cdnhdmi_ctrls);
}
if (of_property_read_bool(pdev->dev.of_node, "hdmi-in")) {
data->dai.playback_only = false;
data->dai.capture_only = true;
data->dai.dai_fmt = SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM;
data->dai.codec_dai_name = "hdmi-hifi.0";
data->dai.codec_name = "hdmi-audio-codec.2";
data->card.controls = imx_cdnhdmi_rx_ctrls;
data->card.num_controls = ARRAY_SIZE(imx_cdnhdmi_rx_ctrls);
}
if ((data->dai.playback_only && data->dai.capture_only)
|| (!data->dai.playback_only && !data->dai.capture_only)) {
dev_err(&pdev->dev, "Wrongly enable HDMI DAI link\n");
goto fail;
}
data->card.dev = &pdev->dev;
data->card.owner = THIS_MODULE;
ret = snd_soc_of_parse_card_name(&data->card, "model");
@ -359,8 +497,7 @@ static int imx_cdnhdmi_probe(struct platform_device *pdev)
goto fail;
data->card.num_links = 1;
data->card.dai_link = &data->dai;
data->card.controls = imx_cdnhdmi_ctrls,
data->card.num_controls = ARRAY_SIZE(imx_cdnhdmi_ctrls),
platform_set_drvdata(pdev, &data->card);
snd_soc_card_set_drvdata(&data->card, data);