trace.h

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/* Driver for Realtek RTS51xx USB card reader
 * Header file
 *
 * Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 * Author:
 *   wwang ([email protected])
 *   No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
 * Maintainer:
 *   Edwin Rong ([email protected])
 *   No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
 */

#ifndef __RTS51X_TRACE_H
#define __RTS51X_TRACE_H

#include "debug.h"

#define _MSG_TRACE

#ifdef _MSG_TRACE
static inline char *filename(char *path)
{
    char *ptr;

    if (path == NULL)
        return NULL;

    ptr = path;

    while (*ptr != '\0') {
        if ((*ptr == '\\') || (*ptr == '/'))
            path = ptr + 1;
        ptr++;
    }

    return path;
}

#define TRACE_RET(chip, ret)                        \
do {                                    \
    char *_file = filename((char *)__FILE__);           \
    RTS51X_DEBUGP("[%s][%s]:[%d]\n", _file, __func__, __LINE__);    \
    (chip)->trace_msg[(chip)->msg_idx].line = (u16)(__LINE__);  \
    strncpy((chip)->trace_msg[(chip)->msg_idx].func,        \
            __func__, MSG_FUNC_LEN-1);          \
    strncpy((chip)->trace_msg[(chip)->msg_idx].file,        \
            _file, MSG_FILE_LEN-1);             \
    get_current_time((chip)->trace_msg[(chip)->msg_idx].timeval_buf,\
            TIME_VAL_LEN);  \
    (chip)->trace_msg[(chip)->msg_idx].valid = 1;           \
    (chip)->msg_idx++;                      \
    if ((chip)->msg_idx >= TRACE_ITEM_CNT) {            \
        (chip)->msg_idx = 0;                    \
    }                               \
    return ret;                         \
} while (0)

#define TRACE_GOTO(chip, label)                     \
do {                                    \
    char *_file = filename((char *)__FILE__);           \
    RTS51X_DEBUGP("[%s][%s]:[%d]\n", _file, __func__, __LINE__);    \
    (chip)->trace_msg[(chip)->msg_idx].line = (u16)(__LINE__);  \
    strncpy((chip)->trace_msg[(chip)->msg_idx].func,        \
            __func__, MSG_FUNC_LEN-1);          \
    strncpy((chip)->trace_msg[(chip)->msg_idx].file,        \
            _file, MSG_FILE_LEN-1);             \
    get_current_time((chip)->trace_msg[(chip)->msg_idx].timeval_buf,\
            TIME_VAL_LEN);                  \
    (chip)->trace_msg[(chip)->msg_idx].valid = 1;           \
    (chip)->msg_idx++;                      \
    if ((chip)->msg_idx >= TRACE_ITEM_CNT) {            \
        (chip)->msg_idx = 0;                    \
    }                               \
    goto label;                         \
} while (0)
#else
#define TRACE_RET(chip, ret)    return (ret)
#define TRACE_GOTO(chip, label) goto label
#endif

#ifdef CONFIG_RTS5139_DEBUG
#define RTS51X_DUMP(buf, buf_len)                   \
    print_hex_dump(KERN_DEBUG, RTS51X_TIP, DUMP_PREFIX_NONE,    \
                16, 1, (buf), (buf_len), false)

#define CATCH_TRIGGER(chip)                 \
do {                                \
    rts51x_ep0_write_register((chip), 0xFC31, 0x01, 0x01);  \
    RTS51X_DEBUGP("Catch trigger!\n");          \
} while (0)

#else
#define RTS51X_DUMP(buf, buf_len)
#define CATCH_TRIGGER(chip)
#endif

#endif /* __RTS51X_TRACE_H */