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Annotation of researchv9/sys.vax/h/dsc.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * these values are critical;
                      3:  * dsseq depends on da being 0
                      4:  * and ad being 1
                      5:  */
                      6: # define DA            ((int)0)
                      7: # define AD            ((int)1)
                      8: 
                      9: /*
                     10:  * start address for d/a and a/d converters
                     11:  */
                     12: #define        ADBASE  ((int)0)
                     13: #define        DABASE  ((int)010)
                     14: 
                     15: /*
                     16:  * ASC sequence table bit for last entry
                     17:  */
                     18: #define LAST_SEQ    bit(7)
                     19: 
                     20: /*
                     21:  * Ioctl commands.
                     22:  */
                     23: # define DSSEQ         ((('s') << 8) | 0)      /* set sequence */
                     24: # define DSRATE                ((('s') << 8) | 1)      /* set rate */
                     25: # define DS08KHZ       ((('s') << 8) | 2)      /* set 08kHz filter */
                     26: # define DS04KHZ       ((('s') << 8) | 3)      /* set 04kHz filter */
                     27: # define DSBYPAS       ((('s') << 8) | 5)      /* set bypass filter */
                     28: # define DSERRS                ((('s') << 8) | 6)      /* get errors */
                     29: # define DSRESET       ((('s') << 8) | 7)      /* reset dsc */
                     30: # define DSTRANS       ((('s') << 8) | 8)      /* get transit. counts */
                     31: # define DSLAST                ((('s') << 8) | 12)     /* last seq ram */
                     32: # define DSDONE                ((('s') << 8) | 14)     /* amnt. done */
                     33: # define DSMON         ((('s') << 8) | 15)     /* set monitor mode */
                     34: # define DSBRD         ((('s') << 8) | 16)     /* set broadcast mode */
                     35: # define DSDEBUG       ((('s') << 8) | 19)     /* debug */
                     36: # define DSWAIT                ((('s') << 8) | 20)     /* wait for io to finish */
                     37: # define DSSTEREO      ((('s') << 8) | 21)     /* switch to stereo mode */
                     38: # define DSMONO                ((('s') << 8) | 22)     /* switch to mono mode */
                     39: # define DSSTOP                ((('s') << 8) | 23)     /* stop conversion */
                     40: # define DSFILTER      ((('s') << 8) | 24)     /* select filter */
                     41: # define DSCOMPLETE    ((('s') << 8) | 25)     /* wait for buffer io done */
                     42: # define DSRECORD      ((('s') << 8) | 26)     /* begin recording */
                     43: 
                     44: # define NDSB          3               /* number of buffers chaining with */
                     45: 
                     46: /*
                     47:  * reg specifies a sequence register (0-15).
                     48:  * conv specifies a converter.
                     49:  * dirt specifies the direction when
                     50:  * setting up the sequence ram (DSSEQ) or the
                     51:  * sampling rate (DSRATE).
                     52:  */
                     53: struct ds_seq {
                     54:        short reg;
                     55:        short conv;
                     56:        short dirt;                     /* shared by DSSEQ and DSRATE */
                     57: };
                     58: /*
                     59:  * Format of returned converter
                     60:  * errors.
                     61:  */
                     62: struct ds_err {
                     63:        short dma_csr;
                     64:        short asc_csr;
                     65:        short errors;
                     66: };
                     67: 
                     68: /*
                     69:  * Format of returned transition counts
                     70:  */
                     71: struct ds_trans {
                     72:        short to_idle;
                     73:        short to_active;
                     74: };

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