diff options
author | Daniel Baluta <daniel.baluta@nxp.com> | 2018-10-04 14:46:43 +0300 |
---|---|---|
committer | Dong Aisheng <aisheng.dong@nxp.com> | 2019-11-25 15:52:03 +0800 |
commit | ee01b4da5e9a77ed540113bac8711b7de5e14bde (patch) | |
tree | 9f2dd894aa3ba63b719d8c4a7f5b30c36d6801f8 /sound/soc/fsl | |
parent | 09194b889d50146c20eafa3a661c5911d4ee2cbf (diff) |
MLK-18497-12: ASoC: fsl: imx-dsp: Add DSP machine driver
Finally! We register DSP as a sound card.
Reviewed-by: Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
[ Aisheng: Makefile clean for a new base ]
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Diffstat (limited to 'sound/soc/fsl')
-rw-r--r-- | sound/soc/fsl/Kconfig | 9 | ||||
-rw-r--r-- | sound/soc/fsl/Makefile | 2 | ||||
-rw-r--r-- | sound/soc/fsl/imx-dsp.c | 203 |
3 files changed, 214 insertions, 0 deletions
diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 0af54d900a8e..ac4cf2f34f7e 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -323,6 +323,15 @@ config SND_SOC_IMX_AUDMIX Say Y if you want to add support for SoC audio on an i.MX board with an Audio Mixer. +config SND_SOC_IMX_DSP + tristate "SoC Audio support for i.MX boards with DSP port" + select SND_SOC_FSL_DSP + select SND_SOC_COMPRESS + help + SoC Audio support for i.MX boards with DSP audio + Say Y if you want to add support for SoC audio on an i.MX board with + IMX DSP. + endif # SND_IMX_SOC endmenu diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index 36ff6b3a534b..d2d99dca5388 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -67,6 +67,7 @@ snd-soc-imx-sgtl5000-objs := imx-sgtl5000.o snd-soc-imx-spdif-objs := imx-spdif.o snd-soc-imx-mc13783-objs := imx-mc13783.o snd-soc-imx-audmix-objs := imx-audmix.o +snd-soc-imx-dsp-objs := imx-dsp.o obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o obj-$(CONFIG_SND_SOC_PHYCORE_AC97) += snd-soc-phycore-ac97.o @@ -77,3 +78,4 @@ obj-$(CONFIG_SND_SOC_IMX_SGTL5000) += snd-soc-imx-sgtl5000.o obj-$(CONFIG_SND_SOC_IMX_SPDIF) += snd-soc-imx-spdif.o obj-$(CONFIG_SND_SOC_IMX_MC13783) += snd-soc-imx-mc13783.o obj-$(CONFIG_SND_SOC_IMX_AUDMIX) += snd-soc-imx-audmix.o +obj-$(CONFIG_SND_SOC_IMX_DSP) += snd-soc-imx-dsp.o diff --git a/sound/soc/fsl/imx-dsp.c b/sound/soc/fsl/imx-dsp.c new file mode 100644 index 000000000000..a6f5a34f8605 --- /dev/null +++ b/sound/soc/fsl/imx-dsp.c @@ -0,0 +1,203 @@ +// SPDX-License-Identifier: (GPL-2.0+ +// +// DSP machine driver +// +// Copyright (c) 2012-2013 by Tensilica Inc. ALL RIGHTS RESERVED. +// Copyright 2018 NXP + +#include <linux/module.h> +#include <linux/of_platform.h> +#include <linux/i2c.h> +#include <linux/of_gpio.h> +#include <linux/slab.h> +#include <linux/gpio.h> +#include <linux/clk.h> +#include <sound/soc.h> +#include <sound/jack.h> +#include <sound/control.h> +#include <sound/pcm_params.h> +#include <sound/soc-dapm.h> + +struct imx_dsp_audio_data { + struct snd_soc_dai_link dai[2]; + struct snd_soc_card card; +}; + +static int imx_dsp_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; + u32 dai_format = SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_LEFT_J | + SND_SOC_DAIFMT_CBS_CFS; + + ret = snd_soc_dai_set_sysclk(codec_dai, 0, + 24576000, SND_SOC_CLOCK_IN); + if (ret) { + dev_err(rtd->dev, "failed to set codec sysclk: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_fmt(codec_dai, dai_format); + if (ret) { + dev_err(rtd->dev, "failed to set codec dai fmt: %d\n", ret); + return ret; + } + + return 0; +} + +static struct snd_soc_ops imx_dsp_ops_be = { + .hw_params = imx_dsp_hw_params, +}; + +static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params) { + + struct snd_interval *rate; + struct snd_interval *channels; + struct snd_mask *mask; + + rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + rate->max = rate->min = 48000; + + channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + channels->max = channels->min = 2; + + mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); + snd_mask_none(mask); + snd_mask_set(mask, SNDRV_PCM_FORMAT_S16_LE); + + return 0; +} + +static const struct snd_soc_dapm_route imx_dsp_audio_map[] = { + {"Playback", NULL, "Compress Playback"},/* dai route for be and fe */ + {"Playback", NULL, "Playback"}, +}; + +static int imx_dsp_audio_probe(struct platform_device *pdev) +{ + struct device_node *cpu_np=NULL, *codec_np=NULL, *platform_np=NULL; + struct platform_device *cpu_pdev; + struct imx_dsp_audio_data *data; + int ret; + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) { + ret = -ENOMEM; + goto fail; + } + + cpu_np = of_parse_phandle(pdev->dev.of_node, "cpu-dai", 0); + if (!cpu_np) { + dev_err(&pdev->dev, "cpu dai phandle missing or invalid\n"); + ret = -EINVAL; + goto fail; + } + + cpu_pdev = of_find_device_by_node(cpu_np); + if (!cpu_pdev) { + dev_err(&pdev->dev, "failed to find rpmsg platform device\n"); + ret = -EINVAL; + goto fail; + } + + codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0); + if (!codec_np) { + dev_err(&pdev->dev, "phandle missing or invalid\n"); + ret = -EINVAL; + goto fail; + } + + platform_np = of_parse_phandle(pdev->dev.of_node, "audio-platform", 0); + if (!platform_np) { + dev_err(&pdev->dev, "platform missing or invalid\n"); + ret = -EINVAL; + goto fail; + } + + data->dai[0].name = "dsp hifi fe"; + data->dai[0].stream_name = "dsp hifi fe"; + data->dai[0].codec_dai_name = "snd-soc-dummy-dai"; + data->dai[0].codec_name = "snd-soc-dummy"; + data->dai[0].cpu_dai_name = dev_name(&cpu_pdev->dev); + data->dai[0].cpu_of_node = cpu_np; + data->dai[0].platform_of_node = platform_np; + data->dai[0].playback_only = true; + data->dai[0].capture_only = false; + data->dai[0].dpcm_playback = 1; + data->dai[0].dpcm_capture = 0; + data->dai[0].dynamic = 1, + data->dai[0].ignore_pmdown_time = 1, + data->dai[0].dai_fmt = SND_SOC_DAIFMT_LEFT_J | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS; + + data->dai[1].name = "dsp hifi be"; + data->dai[1].stream_name = "dsp hifi be"; + data->dai[1].codec_dai_name = "cs42888"; + data->dai[1].codec_of_node = codec_np; + data->dai[1].cpu_dai_name = "snd-soc-dummy-dai"; + data->dai[1].cpu_name = "snd-soc-dummy"; + data->dai[1].platform_name = "snd-soc-dummy"; + data->dai[1].playback_only = true; + data->dai[1].capture_only = false; + data->dai[1].dpcm_playback = 1; + data->dai[1].dpcm_capture = 0; + data->dai[1].no_pcm = 1, + data->dai[1].ignore_pmdown_time = 1, + data->dai[1].dai_fmt = SND_SOC_DAIFMT_LEFT_J | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS; + data->dai[1].ops = &imx_dsp_ops_be; + data->dai[1].be_hw_params_fixup = be_hw_params_fixup; + + data->card.dapm_routes = imx_dsp_audio_map; + data->card.num_dapm_routes = ARRAY_SIZE(imx_dsp_audio_map); + data->card.num_links = 2; + data->card.dai_link = data->dai; + + data->card.dev = &pdev->dev; + data->card.owner = THIS_MODULE; + ret = snd_soc_of_parse_card_name(&data->card, "model"); + if (ret) + goto fail; + + platform_set_drvdata(pdev, &data->card); + snd_soc_card_set_drvdata(&data->card, data); + ret = devm_snd_soc_register_card(&pdev->dev, &data->card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); + goto fail; + } + +fail: + if (cpu_np) + of_node_put(cpu_np); + if (codec_np) + of_node_put(codec_np); + if (platform_np) + of_node_put(platform_np); + return ret; +} + +static const struct of_device_id imx_dsp_audio_dt_ids[] = { + { .compatible = "fsl,imx-dsp-audio", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx_dsp_audio_dt_ids); + +static struct platform_driver imx_dsp_audio_driver = { + .driver = { + .name = "imx-dsp-audio", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + .of_match_table = imx_dsp_audio_dt_ids, + }, + .probe = imx_dsp_audio_probe, +}; +module_platform_driver(imx_dsp_audio_driver); + +MODULE_LICENSE("GPL v2"); |