90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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//
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// Copyright (c) Intel Corporation, 2022
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// Copyright Everest Semiconductor Co.,Ltd
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#include <linux/module.h>
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#include <linux/acpi.h>
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#include "es83xx-dsm-common.h"
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/* UUID ("a9800c04-e016-343e-41f4-6bcce70f4332") */
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static const guid_t es83xx_dsm_guid =
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GUID_INIT(0xa9800c04, 0xe016, 0x343e,
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0x41, 0xf4, 0x6b, 0xcc, 0xe7, 0x0f, 0x43, 0x32);
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#define ES83xx_DSM_REVID 1
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int es83xx_dsm(struct device *dev, int arg, int *value)
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{
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acpi_handle dhandle;
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union acpi_object *obj;
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int ret = 0;
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dhandle = ACPI_HANDLE(dev);
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if (!dhandle)
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return -ENOENT;
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obj = acpi_evaluate_dsm(dhandle, &es83xx_dsm_guid, ES83xx_DSM_REVID,
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arg, NULL);
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if (!obj) {
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dev_err(dev, "%s: acpi_evaluate_dsm() failed\n", __func__);
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ret = -EINVAL;
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goto out;
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}
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if (obj->type != ACPI_TYPE_INTEGER) {
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dev_err(dev, "%s: object is not ACPI_TYPE_INTEGER\n", __func__);
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ret = -EINVAL;
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goto err;
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}
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*value = obj->integer.value;
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err:
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ACPI_FREE(obj);
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out:
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return ret;
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}
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EXPORT_SYMBOL_GPL(es83xx_dsm);
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int es83xx_dsm_dump(struct device *dev)
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{
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int value;
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int ret;
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ret = es83xx_dsm(dev, PLATFORM_MAINMIC_TYPE_ARG, &value);
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if (ret < 0)
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return ret;
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dev_info(dev, "PLATFORM_MAINMIC_TYPE %#x\n", value);
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ret = es83xx_dsm(dev, PLATFORM_HPMIC_TYPE_ARG, &value);
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if (ret < 0)
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return ret;
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dev_info(dev, "PLATFORM_HPMIC_TYPE %#x\n", value);
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ret = es83xx_dsm(dev, PLATFORM_SPK_TYPE_ARG, &value);
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if (ret < 0)
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return ret;
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dev_info(dev, "PLATFORM_SPK_TYPE %#x\n", value);
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ret = es83xx_dsm(dev, PLATFORM_HPDET_INV_ARG, &value);
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if (ret < 0)
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return ret;
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dev_info(dev, "PLATFORM_HPDET_INV %#x\n", value);
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ret = es83xx_dsm(dev, PLATFORM_PCM_TYPE_ARG, &value);
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if (ret < 0)
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return ret;
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dev_info(dev, "PLATFORM_PCM_TYPE %#x\n", value);
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ret = es83xx_dsm(dev, PLATFORM_MIC_DE_POP_ARG, &value);
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if (ret < 0)
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return ret;
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dev_info(dev, "PLATFORM_MIC_DE_POP %#x\n", value);
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return 0;
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}
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EXPORT_SYMBOL_GPL(es83xx_dsm_dump);
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MODULE_DESCRIPTION("Everest Semi ES83xx DSM helpers");
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MODULE_LICENSE("GPL");
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