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- /* 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 */
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