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@@ -0,0 +1,73 @@
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+/* SPDX-License-Identifier: GPL-2.0+ */
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+/*
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+ * Core ACPI (Advanced Configuration and Power Interface) support
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+ *
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+ * Copyright 2019 Google LLC
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+ * Written by Simon Glass <sjg@chromium.org>
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+ */
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+
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+#ifndef __DM_ACPI_H__
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+#define __DM_ACPI_H__
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+
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+/* Allow operations to be optional for ACPI */
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+#if CONFIG_IS_ENABLED(ACPIGEN)
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+#define ACPI_OPS_PTR(_ptr) .acpi_ops = _ptr,
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+#else
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+#define ACPI_OPS_PTR(_ptr)
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+#endif
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+
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+/* Length of an ACPI name string, excluding nul terminator */
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+#define ACPI_NAME_LEN 4
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+
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+/* Length of an ACPI name string including nul terminator */
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+#define ACPI_NAME_MAX (ACPI_NAME_LEN + 1)
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+
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+/**
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+ * struct acpi_ops - ACPI operations supported by driver model
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+ */
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+struct acpi_ops {
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+ /**
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+ * get_name() - Obtain the ACPI name of a device
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+ *
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+ * @dev: Device to check
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+ * @out_name: Place to put the name, must hold at least ACPI_NAME_MAX
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+ * bytes
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+ * @return 0 if OK, -ENOENT if no name is available, other -ve value on
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+ * other error
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+ */
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+ int (*get_name)(const struct udevice *dev, char *out_name);
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+};
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+
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+#define device_get_acpi_ops(dev) ((dev)->driver->acpi_ops)
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+
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+/**
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+ * acpi_get_name() - Obtain the ACPI name of a device
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+ *
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+ * @dev: Device to check
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+ * @out_name: Place to put the name, must hold at least ACPI_NAME_MAX
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+ * bytes
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+ * @return 0 if OK, -ENOENT if no name is available, other -ve value on
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+ * other error
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+ */
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+int acpi_get_name(const struct udevice *dev, char *out_name);
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+
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+/**
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+ * acpi_copy_name() - Copy an ACPI name to an output buffer
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+ *
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+ * This convenience function can be used to return a literal string as a name
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+ * in functions that implement the get_name() method.
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+ *
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+ * For example:
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+ *
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+ * static int mydev_get_name(const struct udevice *dev, char *out_name)
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+ * {
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+ * return acpi_copy_name(out_name, "WIBB");
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+ * }
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+ *
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+ * @out_name: Place to put the name
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+ * @name: Name to copy
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+ * @return 0 (always)
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+ */
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+int acpi_copy_name(char *out_name, const char *name);
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+
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+#endif
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