diff options
Diffstat (limited to 'sound/soc/intel/avs/boards/i2s_test.c')
| -rw-r--r-- | sound/soc/intel/avs/boards/i2s_test.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/sound/soc/intel/avs/boards/i2s_test.c b/sound/soc/intel/avs/boards/i2s_test.c new file mode 100644 index 000000000000..f7b6d7715738 --- /dev/null +++ b/sound/soc/intel/avs/boards/i2s_test.c @@ -0,0 +1,136 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Copyright(c) 2021-2022 Intel Corporation +// +// Authors: Cezary Rojewski <cezary.rojewski@intel.com> +// Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com> +// + +#include <linux/module.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-acpi.h> +#include <sound/soc-dapm.h> +#include "../utils.h" + +static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port, + int tdm_slot, struct snd_soc_dai_link **dai_link) +{ + struct snd_soc_dai_link_component *platform; + struct snd_soc_dai_link *dl; + + dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL); + platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL); + if (!dl || !platform) + return -ENOMEM; + + platform->name = platform_name; + + dl->name = devm_kasprintf(dev, GFP_KERNEL, + AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot)); + dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL); + if (!dl->name || !dl->cpus) + return -ENOMEM; + + dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, + AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot)); + dl->codecs = &snd_soc_dummy_dlc; + if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name) + return -ENOMEM; + + dl->num_cpus = 1; + dl->num_codecs = 1; + dl->platforms = platform; + dl->num_platforms = 1; + dl->id = 0; + dl->nonatomic = 1; + dl->no_pcm = 1; + + *dai_link = dl; + + return 0; +} + +static int avs_i2s_test_probe(struct platform_device *pdev) +{ + struct snd_soc_dai_link *dai_link; + struct snd_soc_acpi_mach *mach; + struct avs_mach_pdata *pdata; + struct snd_soc_card *card; + struct device *dev = &pdev->dev; + const char *pname; + int ssp_port, tdm_slot, ret; + + mach = dev_get_platdata(dev); + pname = mach->mach_params.platform; + pdata = mach->pdata; + + if (!avs_mach_singular_ssp(mach)) { + dev_err(dev, "Invalid SSP configuration\n"); + return -EINVAL; + } + ssp_port = avs_mach_ssp_port(mach); + + if (!avs_mach_singular_tdm(mach, ssp_port)) { + dev_err(dev, "Invalid TDM configuration\n"); + return -EINVAL; + } + tdm_slot = avs_mach_ssp_tdm(mach, ssp_port); + + card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); + if (!card) + return -ENOMEM; + + if (pdata->obsolete_card_names) { + card->name = devm_kasprintf(dev, GFP_KERNEL, + AVS_STRING_FMT("ssp", "-loopback", ssp_port, tdm_slot)); + } else { + card->driver_name = "avs_i2s_test"; + card->long_name = card->name = devm_kasprintf(dev, GFP_KERNEL, + AVS_STRING_FMT("AVS I2S TEST-", "", + ssp_port, tdm_slot)); + } + if (!card->name) + return -ENOMEM; + + ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link); + if (ret) { + dev_err(dev, "Failed to create dai link: %d\n", ret); + return ret; + } + + card->dev = dev; + card->owner = THIS_MODULE; + card->dai_link = dai_link; + card->num_links = 1; + card->fully_routed = true; + + ret = snd_soc_fixup_dai_links_platform_name(card, pname); + if (ret) + return ret; + + return devm_snd_soc_register_deferrable_card(dev, card); +} + +static const struct platform_device_id avs_i2s_test_driver_ids[] = { + { + .name = "avs_i2s_test", + }, + {}, +}; +MODULE_DEVICE_TABLE(platform, avs_i2s_test_driver_ids); + +static struct platform_driver avs_i2s_test_driver = { + .probe = avs_i2s_test_probe, + .driver = { + .name = "avs_i2s_test", + .pm = &snd_soc_pm_ops, + }, + .id_table = avs_i2s_test_driver_ids, +}; + +module_platform_driver(avs_i2s_test_driver); + +MODULE_DESCRIPTION("Intel i2s test machine driver"); +MODULE_LICENSE("GPL"); |