/*
 * Copyright (C) 2000 Kees Cook
 * cook@cpoint.net, http://outflux.net/
 *
 * 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
 * of the License, 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 */
#ifndef STS_H
#define STS_H

/* shamelessly stolen from EXT2 headers... */
/*
 * Define STS_DEBUG to produce debug messages
 */
#undef STS_DEBUG

/*
 * Debug code
 *                                 printf ("sts DEBUG (%s, %d): %s:", \
 *                                          __FILE__, __LINE__, __FUNCTION__); \
 */
#ifdef STS_DEBUG
#       define sts_debug(f, a...) { \
                                  printf (f, ## a); \
                                  }
#else
#       define sts_debug(f, a...)      /**/
#endif


#include "fas.h"

/* for typing convenience */
#define SG_LEN          sizeof(struct sg_header)
#define MAX_PACKET      4096

/* scsi vendor info offsets */
#define EXTRA_OFF       4       /* where the extra len is */
#define VENDOR_START    8       /* Offset in reply data to vendor name */
#define VENDOR_LEN      8       /* length of vendor string */
#define PRODUCT_LEN     16      /* length of product string */
#define REV_LEN         4       /* length of rev string */
#define EXTRA_LEN       20      /* length of the extra string */

/* cmd list info */
typedef struct cmd_list_t {
        unsigned char * data;
        int size;
        struct cmd_list_t * prev;
        struct cmd_list_t * next;
} cmd_list;

/* port state info */
typedef struct port_state_t {
        int reserved;         /* is this port reserved? */
        int enabled;          /* is this port enabled? */
        int flowed;           /* has this port been flowed? */
        int paramed;          /* has this port been paramed? */
        int modemed;          /* has this port been modemed? */
        int available;        /* has this port been successfully inited? */
        /* waitlist[FAS_CMD_MAX] .... for the kernel stalls */
        unsigned char * recvbuff;   /* for remembering caller's recv buffers */
        int status[FAS_CMD_MAX];    /* hold status info on commands */
        /* serial stuff should go here ..... */
} port_state;

/* pty state info */
typedef struct tty_state_t {
        int ptm;            /* pseudo terminal master fd */
        char * pts_name;    /* strdup'd copy of the pt slave name */
        /* anything else here? ..... */
} tty_state;

/* sts structure */
typedef struct sts_state_t {
        int host, chan, id;      /* SCSI identifiers */
        char vendor[VENDOR_LEN + 1];   /* SCSI manufacturer string */
        char product[PRODUCT_LEN + 1]; /* SCSI model string */
        char rev[REV_LEN + 1];         /* SCSI revision */
        char sendextra[EXTRA_LEN + 1]; /* SCSI vendor extras */
        char recvextra[EXTRA_LEN + 1]; /* SCSI vendor extras */
        int sendfd, recvfd;     /* write and read fds (LUN 0 and 1) */
        int total_ports;        /* how many ports in the STS */
        struct port_state_t ** ports;  /* array of STS port info structures */
        struct tty_state_t ** ttys;  /* array of PTY info structures */
        cmd_list * head;        /* head of cmd list */
        cmd_list * tail;        /* tail of cmd list */
        int writable;           /* can I post an STS write cmd? */
        int readable;           /* can I post an STS read cmd? */
	int flushed;		/* msg recv are clear */
        int globaled;           /* did we init the sts? */
	int portsensed;		/* did we finish sensing the number of ports?*/
	int shutdown;		/* shutdown requested */
} sts_state;

#endif