2 * Copyright (c) 2010 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 /* This marks the start of a packed structure section. */
25 #include <packed_section_start.h>
27 #define MSGTRACE_VERSION 1
29 /* Message trace header */
30 typedef BWL_PRE_PACKED_STRUCT
struct msgtrace_hdr
{
33 uint16 len
; /* Len of the trace */
34 uint32 seqnum
; /* Sequence number of message. Useful
35 * if the messsage has been lost
36 * because of DMA error or a bus reset
39 uint32 discarded_bytes
; /* Number of discarded bytes because of
41 uint32 discarded_printf
; /* Number of discarded printf
42 because of trace overflow */
43 } BWL_POST_PACKED_STRUCT msgtrace_hdr_t
;
45 #define MSGTRACE_HDRLEN sizeof(msgtrace_hdr_t)
47 /* The hbus driver generates traces when sending a trace message.
48 * This causes endless traces.
49 * This flag must be set to TRUE in any hbus traces.
50 * The flag is reset in the function msgtrace_put.
51 * This prevents endless traces but generates hasardous
52 * lost of traces only in bus device code.
53 * It is recommendat to set this flag in macro SD_TRACE
54 * but not in SD_ERROR for avoiding missing
55 * hbus error traces. hbus error trace should not generates endless traces.
57 extern bool msgtrace_hbus_trace
;
59 typedef void (*msgtrace_func_send_t
) (void *hdl1
, void *hdl2
, uint8
*hdr
,
60 uint16 hdrlen
, uint8
*buf
,
63 extern void msgtrace_sent(void);
64 extern void msgtrace_put(char *buf
, int count
);
65 extern void msgtrace_init(void *hdl1
, void *hdl2
,
66 msgtrace_func_send_t func_send
);
68 /* This marks the end of a packed structure section. */
69 #include <packed_section_end.h>
71 #endif /* _MSGTRACE_H */