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Diffstat (limited to 'sound/soc/codecs/es83xx-dsm-common.c')
-rw-r--r--sound/soc/codecs/es83xx-dsm-common.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/sound/soc/codecs/es83xx-dsm-common.c b/sound/soc/codecs/es83xx-dsm-common.c
new file mode 100644
index 0000000000..94fd7d54c5
--- /dev/null
+++ b/sound/soc/codecs/es83xx-dsm-common.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) Intel Corporation, 2022
+// Copyright Everest Semiconductor Co.,Ltd
+
+#include <linux/module.h>
+#include <linux/acpi.h>
+#include "es83xx-dsm-common.h"
+
+/* UUID ("a9800c04-e016-343e-41f4-6bcce70f4332") */
+static const guid_t es83xx_dsm_guid =
+ GUID_INIT(0xa9800c04, 0xe016, 0x343e,
+ 0x41, 0xf4, 0x6b, 0xcc, 0xe7, 0x0f, 0x43, 0x32);
+
+#define ES83xx_DSM_REVID 1
+
+int es83xx_dsm(struct device *dev, int arg, int *value)
+{
+ acpi_handle dhandle;
+ union acpi_object *obj;
+ int ret = 0;
+
+ dhandle = ACPI_HANDLE(dev);
+ if (!dhandle)
+ return -ENOENT;
+
+ obj = acpi_evaluate_dsm(dhandle, &es83xx_dsm_guid, ES83xx_DSM_REVID,
+ arg, NULL);
+ if (!obj) {
+ dev_err(dev, "%s: acpi_evaluate_dsm() failed\n", __func__);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (obj->type != ACPI_TYPE_INTEGER) {
+ dev_err(dev, "%s: object is not ACPI_TYPE_INTEGER\n", __func__);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ *value = obj->integer.value;
+err:
+ ACPI_FREE(obj);
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(es83xx_dsm);
+
+int es83xx_dsm_dump(struct device *dev)
+{
+ int value;
+ int ret;
+
+ ret = es83xx_dsm(dev, PLATFORM_MAINMIC_TYPE_ARG, &value);
+ if (ret < 0)
+ return ret;
+ dev_info(dev, "PLATFORM_MAINMIC_TYPE %#x\n", value);
+
+ ret = es83xx_dsm(dev, PLATFORM_HPMIC_TYPE_ARG, &value);
+ if (ret < 0)
+ return ret;
+ dev_info(dev, "PLATFORM_HPMIC_TYPE %#x\n", value);
+
+ ret = es83xx_dsm(dev, PLATFORM_SPK_TYPE_ARG, &value);
+ if (ret < 0)
+ return ret;
+ dev_info(dev, "PLATFORM_SPK_TYPE %#x\n", value);
+
+ ret = es83xx_dsm(dev, PLATFORM_HPDET_INV_ARG, &value);
+ if (ret < 0)
+ return ret;
+ dev_info(dev, "PLATFORM_HPDET_INV %#x\n", value);
+
+ ret = es83xx_dsm(dev, PLATFORM_PCM_TYPE_ARG, &value);
+ if (ret < 0)
+ return ret;
+ dev_info(dev, "PLATFORM_PCM_TYPE %#x\n", value);
+
+ ret = es83xx_dsm(dev, PLATFORM_MIC_DE_POP_ARG, &value);
+ if (ret < 0)
+ return ret;
+ dev_info(dev, "PLATFORM_MIC_DE_POP %#x\n", value);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(es83xx_dsm_dump);
+
+MODULE_DESCRIPTION("Everest Semi ES83xx DSM helpers");
+MODULE_LICENSE("GPL");