Add sound machine driver for the soundcards on Qualcomm X1E80100 SoC, supporting up to four channel audio playback over Soundwire bus. The driver is based on existing sc8280xp.c driver.

Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org --- sound/soc/qcom/Kconfig | 12 +++ sound/soc/qcom/Makefile | 2 + sound/soc/qcom/x1e80100.c | 168 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 182 insertions(+) create mode 100644 sound/soc/qcom/x1e80100.c

diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig index e7b00d1d9e99..762491d6f2f2 100644 --- a/sound/soc/qcom/Kconfig +++ b/sound/soc/qcom/Kconfig @@ -221,4 +221,16 @@ config SND_SOC_SC7280 SC7280 SoC-based systems. Say Y or M if you want to use audio device on this SoCs.

+config SND_SOC_X1E80100 + tristate "SoC Machine driver for X1E80100 boards" + depends on QCOM_APR && SOUNDWIRE + depends on COMMON_CLK + select SND_SOC_QDSP6 + select SND_SOC_QCOM_COMMON + select SND_SOC_QCOM_SDW + help + Add support for audio on Qualcomm Technologies Inc. + X1E80100 SoC-based systems. + Say Y or M if you want to use audio device on this SoCs. + endif #SND_SOC_QCOM diff --git a/sound/soc/qcom/Makefile b/sound/soc/qcom/Makefile index 254350d9dc06..34f3fcb8ee9a 100644 --- a/sound/soc/qcom/Makefile +++ b/sound/soc/qcom/Makefile @@ -29,6 +29,7 @@ snd-soc-sm8250-objs := sm8250.o snd-soc-sc8280xp-objs := sc8280xp.o snd-soc-qcom-common-objs := common.o snd-soc-qcom-sdw-objs := sdw.o +snd-soc-x1e80100-objs := x1e80100.o

obj-$(CONFIG_SND_SOC_STORM) += snd-soc-storm.o obj-$(CONFIG_SND_SOC_APQ8016_SBC) += snd-soc-apq8016-sbc.o @@ -40,6 +41,7 @@ obj-$(CONFIG_SND_SOC_SDM845) += snd-soc-sdm845.o obj-$(CONFIG_SND_SOC_SM8250) += snd-soc-sm8250.o obj-$(CONFIG_SND_SOC_QCOM_COMMON) += snd-soc-qcom-common.o obj-$(CONFIG_SND_SOC_QCOM_SDW) += snd-soc-qcom-sdw.o +obj-$(CONFIG_SND_SOC_X1E80100) += snd-soc-x1e80100.o

#DSP lib obj-$(CONFIG_SND_SOC_QDSP6) += qdsp6/ diff --git a/sound/soc/qcom/x1e80100.c b/sound/soc/qcom/x1e80100.c new file mode 100644 index 000000000000..c3c8bf7ffb5b --- /dev/null +++ b/sound/soc/qcom/x1e80100.c @@ -0,0 +1,168 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2023, Linaro Limited + +#include <dt-bindings/sound/qcom,q6afe.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/soundwire/sdw.h> +#include <sound/pcm.h> +#include <sound/jack.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> + +#include "common.h" +#include "qdsp6/q6afe.h" +#include "sdw.h" + +struct x1e80100_snd_data { + bool stream_prepared[AFE_PORT_MAX]; + struct snd_soc_card *card; + struct sdw_stream_runtime *sruntime[AFE_PORT_MAX]; + struct snd_soc_jack jack; + bool jack_setup; +}; + +static int x1e80100_snd_init(struct snd_soc_pcm_runtime *rtd) +{ + struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card); + + return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup); +} + +static void x1e80100_snd_shutdown(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card); + struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; + + data->sruntime[cpu_dai->id] = NULL; + sdw_release_stream(sruntime); +} + +static int x1e80100_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + 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); + + rate->min = rate->max = 48000; + switch (cpu_dai->id) { + case TX_CODEC_DMA_TX_0: + case TX_CODEC_DMA_TX_1: + case TX_CODEC_DMA_TX_2: + case TX_CODEC_DMA_TX_3: + channels->min = 1; + break; + default: + break; + } + + return 0; +} + +static int x1e80100_snd_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 *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card); + + return qcom_snd_sdw_hw_params(substream, params, &data->sruntime[cpu_dai->id]); +} + +static int x1e80100_snd_prepare(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card); + struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; + + return qcom_snd_sdw_prepare(substream, sruntime, + &data->stream_prepared[cpu_dai->id]); +} + +static int x1e80100_snd_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card); + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; + + return qcom_snd_sdw_hw_free(substream, sruntime, + &data->stream_prepared[cpu_dai->id]); +} + +static const struct snd_soc_ops x1e80100_be_ops = { + .startup = qcom_snd_sdw_startup, + .shutdown = x1e80100_snd_shutdown, + .hw_params = x1e80100_snd_hw_params, + .hw_free = x1e80100_snd_hw_free, + .prepare = x1e80100_snd_prepare, +}; + +static void x1e80100_add_be_ops(struct snd_soc_card *card) +{ + struct snd_soc_dai_link *link; + int i; + + for_each_card_prelinks(card, i, link) { + if (link->no_pcm == 1) { + link->init = x1e80100_snd_init; + link->be_hw_params_fixup = x1e80100_be_hw_params_fixup; + link->ops = &x1e80100_be_ops; + } + } +} + +static int x1e80100_platform_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card; + struct x1e80100_snd_data *data; + struct device *dev = &pdev->dev; + int ret; + + card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); + if (!card) + return -ENOMEM; + /* Allocate the private data */ + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + card->owner = THIS_MODULE; + card->dev = dev; + dev_set_drvdata(dev, card); + snd_soc_card_set_drvdata(card, data); + + ret = qcom_snd_parse_of(card); + if (ret) + return ret; + + card->driver_name = "x1e80100"; + x1e80100_add_be_ops(card); + + return devm_snd_soc_register_card(dev, card); +} + +static const struct of_device_id snd_x1e80100_dt_match[] = { + { .compatible = "qcom,x1e80100-sndcard", }, + {} +}; +MODULE_DEVICE_TABLE(of, snd_x1e80100_dt_match); + +static struct platform_driver snd_x1e80100_driver = { + .probe = x1e80100_platform_probe, + .driver = { + .name = "snd-x1e80100", + .of_match_table = snd_x1e80100_dt_match, + }, +}; +module_platform_driver(snd_x1e80100_driver); +MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org"); +MODULE_AUTHOR("Krzysztof Kozlowski krzysztof.kozlowski@linaro.org"); +MODULE_DESCRIPTION("Qualcomm X1E80100 ASoC Machine Driver"); +MODULE_LICENSE("GPL");