1 files changed, 38 insertions, 0 deletions
diff --git a/include/linux/platform_data/cros_ec_chardev.h b/include/linux/platform_data/cros_ec_chardev.h
new file mode 100644
index 000000000000..7de8faaf77df
--- /dev/null
+++ b/include/linux/platform_data/cros_ec_chardev.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * ChromeOS EC device interface.
+ *
+ * Copyright (C) 2014 Google, Inc.
+ */
+
+#ifndef _UAPI_LINUX_CROS_EC_DEV_H_
+#define _UAPI_LINUX_CROS_EC_DEV_H_
+
+#include <linux/bits.h>
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+#include <linux/platform_data/cros_ec_commands.h>
+
+#define CROS_EC_DEV_VERSION "1.0.0"
+
+/**
+ * struct cros_ec_readmem - Struct used to read mapped memory.
+ * @offset: Within EC_LPC_ADDR_MEMMAP region.
+ * @bytes: Number of bytes to read. Zero means "read a string" (including '\0')
+ *         At most only EC_MEMMAP_SIZE bytes can be read.
+ * @buffer: Where to store the result. The ioctl returns the number of bytes
+ *         read or negative on error.
+ */
+struct cros_ec_readmem {
+	uint32_t offset;
+	uint32_t bytes;
+	uint8_t buffer[EC_MEMMAP_SIZE];
+};
+
+#define CROS_EC_DEV_IOC       0xEC
+#define CROS_EC_DEV_IOCXCMD   _IOWR(CROS_EC_DEV_IOC, 0, struct cros_ec_command)
+#define CROS_EC_DEV_IOCRDMEM  _IOWR(CROS_EC_DEV_IOC, 1, struct cros_ec_readmem)
+#define CROS_EC_DEV_IOCEVENTMASK _IO(CROS_EC_DEV_IOC, 2)
+
+#endif /* _CROS_EC_DEV_H_ */