/*
 * Copyright (c) 2011 Adrian Chadd, Xenion Pty Ltd.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>

#include <sys/types.h>
#include <sys/alq.h>

#include "ah_decode.h"

#define MAX_MARKERS     9

const char *markers[] = {  
        "AH_MARK_RESET",                  /* ar*Reset entry, bChannelChange */
        "AH_MARK_RESET_LINE",             /* ar*_reset.c, line %d */
        "AH_MARK_RESET_DONE",             /* ar*Reset exit, error code */
        "AH_MARK_CHIPRESET",              /* ar*ChipReset, channel num */
        "AH_MARK_PERCAL",                 /* ar*PerCalibration, channel num */
        "AH_MARK_SETCHANNEL",             /* ar*SetChannel, channel num */
        "AH_MARK_ANI_RESET",              /* ar*AniReset, opmode */
        "AH_MARK_ANI_POLL",               /* ar*AniReset, listen time */
        "AH_MARK_ANI_CONTROL",            /* ar*AniReset, cmd */
};

static void
op_read(struct athregrec *a)
{
        printf("read\t%.8x = %.8x\n", a->reg, a->val);
}

static void
op_write(struct athregrec *a)
{
        printf("write\t%.8x = %.8x\n", a->reg, a->val);
}

static void
op_device(struct athregrec *a)
{
        printf("device\t0x%x/0x%x\n", a->reg, a->val);
}

static void
op_mark(struct athregrec *a)
{
        const char *s = "UNKNOWN";
        if (a->reg <= MAX_MARKERS)
                s = markers[a->reg];

        printf("mark\t%s (%d): %d\n", s, a->reg, a->val);
}

int
main(int argc, const char *argv[])
{
        const char *file = argv[1];
        int fd;
        struct athregrec a;
        int r;

        if (argc < 2) {
                printf("usage: %s <ahq log>\n", argv[0]);
                exit(127);
        }

        fd = open(file, O_RDONLY);
        if (fd < 0) {
                perror("open"); 
                exit(127);
        }

        while (1) {
                r = read(fd, &a, sizeof(a));
                if (r != sizeof(a))
                        break;
                switch (a.op) {
                        case OP_READ:
                                op_read(&a);
                                break;
                        case OP_WRITE:
                                op_write(&a);
                                break;
                        case OP_DEVICE:
                                op_device(&a);
                                break;
                        case OP_MARK:
                                op_mark(&a);
                                break;
                        default:
                                printf("op: %d; reg: 0x%x; val: 0x%x\n",
                                    a.op, a.reg, a.val);
                }
        }
        close(fd);
}