diff options
Diffstat (limited to 'drivers/staging/brcm80211/brcmfmac/msgtrace.h')
-rw-r--r-- | drivers/staging/brcm80211/brcmfmac/msgtrace.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/staging/brcm80211/brcmfmac/msgtrace.h b/drivers/staging/brcm80211/brcmfmac/msgtrace.h new file mode 100644 index 00000000000..d654671a5a3 --- /dev/null +++ b/drivers/staging/brcm80211/brcmfmac/msgtrace.h @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2010 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef _MSGTRACE_H +#define _MSGTRACE_H + +#define MSGTRACE_VERSION 1 + +/* Message trace header */ +typedef struct msgtrace_hdr { + u8 version; + u8 spare; + u16 len; /* Len of the trace */ + u32 seqnum; /* Sequence number of message. Useful + * if the messsage has been lost + * because of DMA error or a bus reset + * (ex: SDIO Func2) + */ + u32 discarded_bytes; /* Number of discarded bytes because of + trace overflow */ + u32 discarded_printf; /* Number of discarded printf + because of trace overflow */ +} __attribute__((packed)) msgtrace_hdr_t; + +#define MSGTRACE_HDRLEN sizeof(msgtrace_hdr_t) + +/* The hbus driver generates traces when sending a trace message. + * This causes endless traces. + * This flag must be set to true in any hbus traces. + * The flag is reset in the function msgtrace_put. + * This prevents endless traces but generates hasardous + * lost of traces only in bus device code. + * It is recommendat to set this flag in macro SD_TRACE + * but not in SD_ERROR for avoiding missing + * hbus error traces. hbus error trace should not generates endless traces. + */ +extern bool msgtrace_hbus_trace; + +typedef void (*msgtrace_func_send_t) (void *hdl1, void *hdl2, u8 *hdr, + u16 hdrlen, u8 *buf, + u16 buflen); + +extern void msgtrace_sent(void); +extern void msgtrace_put(char *buf, int count); +extern void msgtrace_init(void *hdl1, void *hdl2, + msgtrace_func_send_t func_send); + +#endif /* _MSGTRACE_H */ |