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/******************************************************************
* CopyPolicy: GNU Lesser General Public License 2.1 applies
* Copyright (C) 1998-2008 Monty xiphmont@mit.edu
*
* internal include file for cdda interface kit for Linux
*
******************************************************************/
#ifndef _cdda_low_interface_
#define _cdda_low_interface_
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <time.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#include <sys/shm.h>
#include <sys/time.h>
#include <sys/types.h>
#include <linux/major.h>
#include <linux/version.h>
/* some include file locations have changed with newer kernels */
#ifdef SBPCD_H
#include <linux/sbpcd.h>
#endif
#ifdef UCDROM_H
#include <linux/ucdrom.h>
#endif
#ifndef CDROMAUDIOBUFSIZ
#define CDROMAUDIOBUFSIZ 0x5382 /* set the audio buffer size */
#endif
#ifndef CDROM_GET_CAPABILITY
#define CDROM_GET_CAPABILITY 0x5331 /* get CDROM capabilites if CDROM */
#endif
#include <scsi/sg.h>
#include <scsi/scsi.h>
#include <linux/cdrom.h>
#include <linux/major.h>
#include "cdda_interface.h"
#ifndef SG_EMULATED_HOST
/* old kernel version; the check for the ioctl is still runtime, this
is just to build */
#define SG_EMULATED_HOST 0x2203
#define SG_SET_TRANSFORM 0x2204
#define SG_GET_TRANSFORM 0x2205
#endif
#ifndef SG_IO
/* old kernel version; the usage is all runtime-safe, this is just to
build */
typedef struct sg_io_hdr
{
int interface_id; /* [i] 'S' for SCSI generic (required) */
int dxfer_direction; /* [i] data transfer direction */
unsigned char cmd_len; /* [i] SCSI command length ( <= 16 bytes) */
unsigned char mx_sb_len; /* [i] max length to write to sbp */
unsigned short int iovec_count; /* [i] 0 implies no scatter gather */
unsigned int dxfer_len; /* [i] byte count of data transfer */
void * dxferp; /* [i], [*io] points to data transfer memory
or scatter gather list */
unsigned char * cmdp; /* [i], [*i] points to command to perform */
unsigned char * sbp; /* [i], [*o] points to sense_buffer memory */
unsigned int timeout; /* [i] MAX_UINT->no timeout (unit: millisec) */
unsigned int flags; /* [i] 0 -> default, see SG_FLAG... */
int pack_id; /* [i->o] unused internally (normally) */
void * usr_ptr; /* [i->o] unused internally */
unsigned char status; /* [o] scsi status */
unsigned char masked_status;/* [o] shifted, masked scsi status */
unsigned char msg_status; /* [o] messaging level data (optional) */
unsigned char sb_len_wr; /* [o] byte count actually written to sbp */
unsigned short int host_status; /* [o] errors from host adapter */
unsigned short int driver_status;/* [o] errors from software driver */
int resid; /* [o] dxfer_len - actual_transferred */
unsigned int duration; /* [o] time taken by cmd (unit: millisec) */
unsigned int info; /* [o] auxiliary information */
} sg_io_hdr_t;
#endif
struct cdda_private_data {
struct sg_header *sg_hd;
unsigned char *sg_buffer; /* points into sg_hd */
clockid_t clock;
int last_milliseconds;
};
#define MAX_RETRIES 8
#define MAX_BIG_BUFF_SIZE 65536
#define MIN_BIG_BUFF_SIZE 4096
#define SG_OFF sizeof(struct sg_header)
extern int cooked_init_drive (cdrom_drive *d);
extern unsigned char *scsi_inquiry (cdrom_drive *d);
extern int scsi_init_drive (cdrom_drive *d);
#ifdef CDDA_TEST
extern int test_init_drive (cdrom_drive *d);
#endif
#endif
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