qdio_debug.h

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/*
 *  Copyright IBM Corp. 2008
 *
 *  Author: Jan Glauber ([email protected])
 */
#ifndef QDIO_DEBUG_H
#define QDIO_DEBUG_H

#include <asm/debug.h>
#include <asm/qdio.h>
#include "qdio.h"

/* that gives us 15 characters in the text event views */
#define QDIO_DBF_LEN    16

extern debug_info_t *qdio_dbf_setup;
extern debug_info_t *qdio_dbf_error;

/* sort out low debug levels early to avoid wasted sprints */
static inline int qdio_dbf_passes(debug_info_t *dbf_grp, int level)
{
    return (level <= dbf_grp->level);
}

#define DBF_ERR     3   /* error conditions */
#define DBF_WARN    4   /* warning conditions   */
#define DBF_INFO    6   /* informational    */

#undef DBF_EVENT
#undef DBF_ERROR
#undef DBF_DEV_EVENT

#define DBF_EVENT(text...) \
    do { \
        char debug_buffer[QDIO_DBF_LEN]; \
        snprintf(debug_buffer, QDIO_DBF_LEN, text); \
        debug_text_event(qdio_dbf_setup, DBF_ERR, debug_buffer); \
    } while (0)

static inline void DBF_HEX(void *addr, int len)
{
    while (len > 0) {
        debug_event(qdio_dbf_setup, DBF_ERR, addr, len);
        len -= qdio_dbf_setup->buf_size;
        addr += qdio_dbf_setup->buf_size;
    }
}

#define DBF_ERROR(text...) \
    do { \
        char debug_buffer[QDIO_DBF_LEN]; \
        snprintf(debug_buffer, QDIO_DBF_LEN, text); \
        debug_text_event(qdio_dbf_error, DBF_ERR, debug_buffer); \
    } while (0)

static inline void DBF_ERROR_HEX(void *addr, int len)
{
    while (len > 0) {
        debug_event(qdio_dbf_error, DBF_ERR, addr, len);
        len -= qdio_dbf_error->buf_size;
        addr += qdio_dbf_error->buf_size;
    }
}

#define DBF_DEV_EVENT(level, device, text...) \
    do { \
        char debug_buffer[QDIO_DBF_LEN]; \
        if (qdio_dbf_passes(device->debug_area, level)) { \
            snprintf(debug_buffer, QDIO_DBF_LEN, text); \
            debug_text_event(device->debug_area, level, debug_buffer); \
        } \
    } while (0)

static inline void DBF_DEV_HEX(struct qdio_irq *dev, void *addr,
                   int len, int level)
{
    while (len > 0) {
        debug_event(dev->debug_area, level, addr, len);
        len -= dev->debug_area->buf_size;
        addr += dev->debug_area->buf_size;
    }
}

void qdio_allocate_dbf(struct qdio_initialize *init_data,
               struct qdio_irq *irq_ptr);
void qdio_setup_debug_entries(struct qdio_irq *irq_ptr,
                  struct ccw_device *cdev);
void qdio_shutdown_debug_entries(struct qdio_irq *irq_ptr,
                 struct ccw_device *cdev);
int qdio_debug_init(void);
void qdio_debug_exit(void);

#endif