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/*
* stm_fw.h
*
* System Trace Module (STM) Framework Driver API
*
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef _STM_FW_H
#define _STM_FW_H
enum stm_usecase {
USER_CHANNEL_REQUEST,
PRINTK_CHANNEL_REQUEST,
TRACEPOINT_CHANEL_REQUEST,
LTTNG_CHANNEL_REQUEST,
REMOVE_CHANNEL_REQUEST,
LAST_REQUEST
};
struct stm_global_info {
int total_chn_cnt;
int reserved_chn_cnt;
int user_allocated_chn_cnt;
int stm_module_clock_on;
int stm_module_enabled;
char *attribute_list;
};
struct stm_operations {
char *name;
int (*get_global_info)(struct stm_global_info *info);
int (*write) (void *chn_id, char *pbuf, int cnt, bool uspace,
bool timestamp);
int (*write_mark)(void *chn_id, char *pbuf, int cnt, bool uspace,
bool timestamp);
int (*allocate_channel) (enum stm_usecase uc_id, void **chn_id);
int (*free_channel) (void *chn_id);
int (*config_write)(void *chn_id, char *config_string);
int (*config_read)(void *chn_id, char *config_string, int count);
int (*mmap)(struct vm_area_struct *vma);
};
int stm_register(struct stm_operations *stm_ops);
int stm_unregister(void);
#endif
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