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Subject[RFC 3/5] i3c: device: expose transfer strutures to uapi
Date
Move i3c transfer related structures to uapi, so they can be access
by userspace.

Signed-off-by: Vitor Soares <vitor.soares@synopsys.com>
---
include/linux/i3c/device.h | 54 +--------------------------------
include/uapi/linux/i3c/device.h | 66 +++++++++++++++++++++++++++++++++++++++++
2 files changed, 67 insertions(+), 53 deletions(-)
create mode 100644 include/uapi/linux/i3c/device.h

diff --git a/include/linux/i3c/device.h b/include/linux/i3c/device.h
index de102e4..1df05c2 100644
--- a/include/linux/i3c/device.h
+++ b/include/linux/i3c/device.h
@@ -14,59 +14,7 @@
#include <linux/kconfig.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
-
-/**
- * enum i3c_error_code - I3C error codes
- *
- * These are the standard error codes as defined by the I3C specification.
- * When -EIO is returned by the i3c_device_do_priv_xfers() or
- * i3c_device_send_hdr_cmds() one can check the error code in
- * &struct_i3c_priv_xfer.err or &struct i3c_hdr_cmd.err to get a better idea of
- * what went wrong.
- *
- * @I3C_ERROR_UNKNOWN: unknown error, usually means the error is not I3C
- * related
- * @I3C_ERROR_M0: M0 error
- * @I3C_ERROR_M1: M1 error
- * @I3C_ERROR_M2: M2 error
- */
-enum i3c_error_code {
- I3C_ERROR_UNKNOWN = 0,
- I3C_ERROR_M0 = 1,
- I3C_ERROR_M1,
- I3C_ERROR_M2,
-};
-
-/**
- * enum i3c_hdr_mode - HDR mode ids
- * @I3C_HDR_DDR: DDR mode
- * @I3C_HDR_TSP: TSP mode
- * @I3C_HDR_TSL: TSL mode
- */
-enum i3c_hdr_mode {
- I3C_HDR_DDR,
- I3C_HDR_TSP,
- I3C_HDR_TSL,
-};
-
-/**
- * struct i3c_priv_xfer - I3C SDR private transfer
- * @rnw: encodes the transfer direction. true for a read, false for a write
- * @len: transfer length in bytes of the transfer
- * @data: input/output buffer
- * @data.in: input buffer. Must point to a DMA-able buffer
- * @data.out: output buffer. Must point to a DMA-able buffer
- * @err: I3C error code
- */
-struct i3c_priv_xfer {
- u8 rnw;
- u16 len;
- union {
- void *in;
- const void *out;
- } data;
- enum i3c_error_code err;
-};
+#include <uapi/linux/i3c/device.h>

/**
* enum i3c_dcr - I3C DCR values
diff --git a/include/uapi/linux/i3c/device.h b/include/uapi/linux/i3c/device.h
new file mode 100644
index 0000000..edbb14d
--- /dev/null
+++ b/include/uapi/linux/i3c/device.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2019 Synopsys, Inc. and/or its affiliates.
+ *
+ * Author: Vitor Soares <vitor.soares@synopsys.com>
+ */
+
+#ifndef _UAPI_LINUX_I3C_DEVICE_H
+#define _UAPI_LINUX_I3C_DEVICE_H
+
+#include <linux/types.h>
+
+/**
+ * enum i3c_error_code - I3C error codes
+ *
+ * These are the standard error codes as defined by the I3C specification.
+ * When -EIO is returned by the i3c_device_do_priv_xfers() or
+ * i3c_device_send_hdr_cmds() one can check the error code in
+ * &struct_i3c_priv_xfer.err or &struct i3c_hdr_cmd.err to get a better idea of
+ * what went wrong.
+ *
+ * @I3C_ERROR_UNKNOWN: unknown error, usually means the error is not I3C
+ * related
+ * @I3C_ERROR_M0: M0 error
+ * @I3C_ERROR_M1: M1 error
+ * @I3C_ERROR_M2: M2 error
+ */
+enum i3c_error_code {
+ I3C_ERROR_UNKNOWN = 0,
+ I3C_ERROR_M0 = 1,
+ I3C_ERROR_M1,
+ I3C_ERROR_M2,
+};
+
+/**
+ * enum i3c_hdr_mode - HDR mode ids
+ * @I3C_HDR_DDR: DDR mode
+ * @I3C_HDR_TSP: TSP mode
+ * @I3C_HDR_TSL: TSL mode
+ */
+enum i3c_hdr_mode {
+ I3C_HDR_DDR,
+ I3C_HDR_TSP,
+ I3C_HDR_TSL,
+};
+
+/**
+ * struct i3c_priv_xfer - I3C SDR private transfer
+ * @rnw: encodes the transfer direction. true for a read, false for a write
+ * @len: transfer length in bytes of the transfer
+ * @data: input/output buffer
+ * @data.in: input buffer. Must point to a DMA-able buffer
+ * @data.out: output buffer. Must point to a DMA-able buffer
+ * @err: I3C error code
+ */
+struct i3c_priv_xfer {
+ u8 rnw;
+ u16 len;
+ union {
+ void *in;
+ const void *out;
+ } data;
+ enum i3c_error_code err;
+};
+
+#endif /* _UAPI_LINUX_I3C_DEVICE_H */
--
2.7.4
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