log.c

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/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
#-----------------------------------------------------------------------
# Copyright (c) 2003 Marcus R. Brown <mrbrown@0xd6.org>
# Licenced under Academic Free License version 2.0
# Review ps2sdk README & LICENSE files for further details.
*/

 
#ifdef SIO2LOG
 
#include <types.h>
#include <defs.h>
#include <stdio.h>
#include <ioman.h>
 
#include "log.h"
 
#define DPRINTF(format, args...) printf("SIO2MAN: (%s): " format, __FUNCTION__ , ## args)
 
#define FLUSH_COUNT_MAX 4
#define DMA_MAX     1024
 
static int init = 0;
static int logging = 1;
static int writesize = 0;
static int flushcount = 0;
static u8 log[10 * 1024];
static int logfd = -1;
 
static const char *logfile = "host0:sio2.log";
 
static int log_init(void)
{
    logging = 1;
 
    if ((logfd = open(logfile, O_WRONLY | O_CREAT | O_TRUNC)) < 0)
        logging = 0;
 
    init = 1;
    return 1;
}
 
void log_default(int type)
{
    if (!logging) return;
 
    log_write8(type);
}
 
void log_portdata(u32 *pd1, u32 *pd2)
{
    int i;
 
    if (!logging) return;
 
    log_default(LOG_TRS_PD);
 
    for (i = 0; i < 4; i++) {
        log_write32(pd1[i]);
        log_write32(pd2[i]);
    }
}
 
void log_regdata(u32 *rd)
{
    int i;
 
    if (!logging) return;
 
    log_default(LOG_TRS_RD);
 
    for (i = 0; i < 16; i++)
        log_write32(rd[i]);
}
 
void log_data(int type, u8 *data, u32 size)
{
    int i;
 
    if (!logging) return;
 
    log_default(type);
 
    log_write32(size);
 
    for (i = 0; (u32)i < size; i++)
        log_write8(data[i]);
}
 
void log_dma(int type, struct _sio2_dma_arg *arg)
{
    u8 *p;
    int i, effective;
 
    if (!logging) return;
 
    log_default(type);
 
    log_write32((u32)arg->addr);
    log_write32(arg->size);
    log_write32(arg->count);
 
    effective = arg->size * 4 * arg->count;
    if (effective > DMA_MAX)
        effective = DMA_MAX;
 
    for (i = 0, p = (u8 *)arg->addr; i < effective; i++)
        log_write8(p[i]);
}
 
void log_stat(u32 stat6c, u32 stat70, u32 stat74)
{
    if (!logging) return;
 
    log_default(LOG_TRR_STAT);
 
    log_write32(stat6c); log_write32(stat70); log_write32(stat74);
}
 
void log_write8(u8 val)
{
    if (!init && !log_init())
        return;
 
    log[writesize++] = val;
}
 
void log_write32(u32 val)
{
    if (!init && !log_init())
        return;
 
    log[writesize] = val & 0xff;
    log[writesize + 1] = (val >> 8) & 0xff;
    log[writesize + 2] = (val >> 16) & 0xff;
    log[writesize + 3] = (val >> 24) & 0xff;
    writesize += 4;
}
 
void log_flush(int now)
{
    if (!init && !log_init())
        return;
 
    if (!logging || logfd < 0) return;
 
    flushcount++;
 
    if (now || flushcount >= FLUSH_COUNT_MAX) {
        write(logfd, log, writesize);
        close(logfd);
        logfd = open(logfile, O_WRONLY | O_APPEND);
        if (logfd < 0)
            logging = 0;
 
        writesize = 0;
    }
 
    if (flushcount >= FLUSH_COUNT_MAX)
        flushcount = 0;
}
 
#endif