diff options
Diffstat (limited to 'drivers/net/wireless/bcmdhd/include/msgtrace.h')
| -rw-r--r-- | drivers/net/wireless/bcmdhd/include/msgtrace.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/net/wireless/bcmdhd/include/msgtrace.h b/drivers/net/wireless/bcmdhd/include/msgtrace.h new file mode 100644 index 00000000..7c5fd810 --- /dev/null +++ b/drivers/net/wireless/bcmdhd/include/msgtrace.h @@ -0,0 +1,74 @@ +/* + * Trace messages sent over HBUS + * + * Copyright (C) 1999-2012, Broadcom Corporation + * + * Unless you and Broadcom execute a separate written software license + * agreement governing use of this software, this software is licensed to you + * under the terms of the GNU General Public License version 2 (the "GPL"), + * available at http://www.broadcom.com/licenses/GPLv2.php, with the + * following added to such license: + * + * As a special exception, the copyright holders of this software give you + * permission to link this software with independent modules, and to copy and + * distribute the resulting executable under terms of your choice, provided that + * you also meet, for each linked independent module, the terms and conditions of + * the license of that module. An independent module is a module which is not + * derived from this software. The special exception does not apply to any + * modifications of the software. + * + * Notwithstanding the above, under no circumstances may you combine this + * software in any way with any other Broadcom software provided under a license + * other than the GPL, without Broadcom's express prior written consent. + * + * $Id: msgtrace.h 281527 2011-09-02 17:12:53Z $ + */ + +#ifndef _MSGTRACE_H +#define _MSGTRACE_H + +#ifndef _TYPEDEFS_H_ +#include <typedefs.h> +#endif + + +/* This marks the start of a packed structure section. */ +#include <packed_section_start.h> + +#define MSGTRACE_VERSION 1 + +/* Message trace header */ +typedef BWL_PRE_PACKED_STRUCT struct msgtrace_hdr { + uint8 version; + uint8 spare; + uint16 len; /* Len of the trace */ + uint32 seqnum; /* Sequence number of message. Useful if the messsage has been lost + * because of DMA error or a bus reset (ex: SDIO Func2) + */ + uint32 discarded_bytes; /* Number of discarded bytes because of trace overflow */ + uint32 discarded_printf; /* Number of discarded printf because of trace overflow */ +} BWL_POST_PACKED_STRUCT 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, uint8 *hdr, + uint16 hdrlen, uint8 *buf, uint16 buflen); +extern void msgtrace_start(void); +extern void msgtrace_stop(void); +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); +extern bool msgtrace_event_enabled(void); + +/* This marks the end of a packed structure section. */ +#include <packed_section_end.h> + +#endif /* _MSGTRACE_H */ |