FreeBSD/Linux Kernel Cross Reference
sys/i386/isa/mcdreg.h

     /*
      * Copyright 1993 by Holger Veit (data part)
      * Copyright 1993 by Brian Moore (audio part)
      * Changes Copyright 1993 by Gary Clark II
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This software was developed by Holger Veit and Brian Moore
     *      for use with "386BSD" and similar operating systems.
     *    "Similar operating systems" includes mainly non-profit oriented
     *    systems for research and education, including but not restricted to
     *    "NetBSD", "FreeBSD", "Mach" (by CMU).
     * 4. Neither the name of the developer(s) nor the name "386BSD"
     *    may be used to endorse or promote products derived from this
     *    software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER(S) ``AS IS'' AND ANY
     * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE DEVELOPER(S) BE
     * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
     * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
     * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     *
     * This file contains definitions for some cdrom control commands
     * and status codes. This info was "inherited" from the DOS MTMCDE.SYS
     * driver, and is thus not complete (and may even be wrong). Some day
     * the manufacturer or anyone else might provide better documentation,
     * so this file (and the driver) will then have a better quality.
     *
     * $FreeBSD: src/sys/i386/isa/mcdreg.h,v 1.11.4.1 1999/09/05 08:13:13 peter Exp $
     */
    
    #ifndef MCD_H
    #define MCD_H
    
    #ifdef __GNUC__
    #if __GNUC__ >= 2
    #pragma pack(1)
    #endif
    #endif
    
    typedef unsigned char   bcd_t;
    #define M_msf(msf)      msf[0]
    #define S_msf(msf)      msf[1]
    #define F_msf(msf)      msf[2]
    
    /* io lines used */
    #define MCD_IO_BASE     0x300
    
    #define mcd_command     0
    #define mcd_status      0
    #define mcd_rdata       0
    
    #define mcd_reset       1
    #define mcd_ctl2        2 /* XXX Is this right? */
    #define mcd_config      3
    
    #define MCD_MASK_DMA    0x07    /* bits 2-0 = DMA channel */
    #define MCD_MASK_IRQ    0x70    /* bits 6-4 = INT number */
                                    /* 001 = int 2,9 */
                                    /* 010 = int 3 */
                                    /* 011 = int 5 */
                                    /* 100 = int 10 */
                                    /* 101 = int 11 */
    /* flags */
    #define MFL_DATA_NOT_AVAIL      0x02
    #define MFL_STATUS_NOT_AVAIL    0x04
    
    /* New Commands */
    #define M_RESET         0x00
    #define M_PICKLE        0x04
    
    /* ports */
    #define MCD_DATA        0
    #define MCD_FLAGS       1
    #define MCD_CTRL        2
    #define CHANNEL         3       /* XXX ??? */
    
    /* Status bits */
    #define MCD_ST_DOOROPEN         0x80
    #define MCD_ST_DSKIN            0x40
    #define MCD_ST_DSKCHNG          0x20
    #define MCD_ST_SPINNING         0x10
    #define MCD_ST_AUDIODISK        0x08    /* Audio Disk is in */
    #define MCD_ST_BUSY             0x04
   #define MCD_ST_AUDIOBSY         0x02    /* Audio Disk is Playing */
   #define MCD_ST_CMDCHECK         0x01    /* Command error */
   
   /* commands known by the controller */
   #define MCD_CMDRESET            0x00
   #define MCD_CMDGETVOLINFO       0x10    /* gets mcd_volinfo */
   #define MCD_CMDGETDISKINFO      0x11    /* gets mcd_disk information */
   #define MCD_CMDGETQCHN          0x20    /* gets mcd_qchninfo */
   #define MCD_CMDGETSENSE         0x30    /* gets sense info */
   #define MCD_CMDGETSTAT          0x40    /* gets a byte of status */
   
   #define MCD_CMDSETMODE          0x50    /* set transmission mode, needs byte */
   
   #define MCD_MDBIT_TESTMODE      0x80    /* 0 = DATALENGTH setting is valid */
   #define MCD_MDBIT_DATALENGTH    0x40    /* 0 = Read User Data Only */
                                           /* 1 = Read Raw sectors (2352 bytes) */
   
   #define MCDBLK  2048                            /* for cooked mode */
   #define MCDRBLK sizeof(struct mcd_rawsector)    /* for raw mode */
   
   #define MCD_MDBIT_ECCMODE       0x20    /* 0 = Use secondary correction */
                                           /* 1 = Don't use secondary ECC */
   #define MCD_MDBIT_SPINDOWN      0x08    /* 0 = Spin Up, 1 = Spin Down */
   #define MCD_MDBIT_GET_TOC       0x04    /* 0 = Get UPC on next GETQCHAN */
                                           /* 1 = Get TOC on GETQCHAN */
   #define MCD_MDBIT_MUTEDATA      0x01    /* 1 = Don't play back Data as audio */
   
   #define MCD_MD_RAW              (MCD_MDBIT_DATALENGTH|MCD_MDBIT_ECCMODE|MCD_MDBIT_MUTEDATA)
   #define MCD_MD_COOKED           (MCD_MDBIT_MUTEDATA)
   #define MCD_MD_TOC              (MCD_MDBIT_GET_TOC|MCD_MDBIT_MUTEDATA)
   
   #define MCD_CMDSTOPAUDIO        0x70
   #define MCD_CMDSTOPAUDIOTIME    0x80
   #define MCD_CMDGETVOLUME        0x8E    /* gets mcd_volume */
   #define MCD_CMDSETDRIVEMODE     0xA0    /* Set drive mode */
   #define MCD_READUPC             0xA2    /* Get UPC info */
   #define MCD_CMDSETVOLUME        0xAE    /* sets mcd_volume */
   #define MCD_CMDREAD1            0xB0    /* read n sectors */
   #define MCD_CMDSINGLESPEEDREAD  0xC0    /* read from-to */
   #define MCD_CMDSTARTAUDIOMSF    0xC1    /* read audio data */
   #define MCD_CMDDOUBLESPEEDREAD  0xC1    /* Read lots of data from the drive */
   #define MCD_CMDGETDRIVEMODE     0xC2    /* Get the drive mode */
   #define MCD_CMDREAD             0xC3    /* Read data from the drive */
   #define MCD_CMDSETINTERLEAVE    0xC8    /* Adjust the interleave */
   #define MCD_CMDCONTINFO         0xDC    /* Get controller info */
   #define MCD_CMDSTOP             0xF0    /* Stop everything */
   #define MCD_CMDEJECTDISK        0xF6
   #define MCD_CMDCLOSETRAY        0xF8
   
   #define MCD_CMDLOCKDRV          0xFE    /* needs byte */
   #define MCD_LK_UNLOCK   0x00
   #define MCD_LK_LOCK     0x01
   #define MCD_LK_TEST     0x02
   
   /* DMA Enable Stuff */
   #define MCD_DMA_IRQFLAGS        0x10    /* Set data0 for IRQ click */
   
   #define MCD_DMA_PREIRQ          0x01    /* All of these are for */
   #define MCD_DMA_POSTIRQ         0x02    /* MCD_DMA_IRQFLAG...   */
   #define MCD_DMA_ERRIRQ          0x04    /*                      */
   
   #define MCD_DMA_TIMEOUT         0x08    /* Set data0 for DMA timeout */
   #define MCD_DMA_UPCFLAG         0x04    /* 1 = Next command will be READUPC */
   
   #define MCD_DMA_DMAMODE         0x02    /* 1 = Data uses DMA */
   #define MCD_DMA_TRANSFERLENGTH  0x01    /* data0 = MSB, data1 = LSB of block length */
   
   struct mcd_dma_mode {
           u_char  dma_mode;
           u_char  data0;          /* If dma_mode & 0x10: Use IRQ settings */
           u_char  data1;          /* Used if dma_mode & 0x01 */
   };
   
   struct mcd_volinfo {
           bcd_t   trk_low;
           bcd_t   trk_high;
           bcd_t   vol_msf[3];
           bcd_t   trk1_msf[3];
   };
   
   struct mcd_qchninfo {
           u_char  addr_type:4;
           u_char  control:4;
           u_char  trk_no;
           u_char  idx_no;
           bcd_t   trk_size_msf[3];
           u_char  :8;
           bcd_t   hd_pos_msf[3];
   };
   
   struct mcd_volume {
           u_char  v0l;
           u_char  v0rs;
           u_char  v0r;
           u_char  v0ls;
   };
   
   struct mcd_holdtime {
           u_char  units_of_ten_seconds;
                           /* If this is 0, the default (12) is used */
   };
   
   struct mcd_read1 {
           bcd_t   start_msf[3];
           u_char  nsec[3];
   };
   
   struct mcd_read2 {
           bcd_t   start_msf[3];
           bcd_t   end_msf[3];
   };
   
   struct mcd_rawsector {
           u_char sync1[12];
           u_char header[4];
           u_char subheader1[4];
           u_char subheader2[4];
           u_char data[MCDBLK];
           u_char ecc_bits[280];
   };
   
   #ifdef __GNUC__
   #if __GNUC__ >= 2
   #pragma pack(4)
   #endif
   #endif
   #endif /* MCD_H */

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