Return to audio_config.h CVS log

Up to [GnuMach] / Gnu-Mach / chips

Annotation of Gnu-Mach/chips/audio_config.h, revision 1.1

1.1     ! root        1: /* 
        !             2:  * Mach Operating System
        !             3:  * Copyright (c) 1992 Carnegie Mellon University
        !             4:  * All Rights Reserved.
        !             5:  * 
        !             6:  * Permission to use, copy, modify and distribute this software and its
        !             7:  * documentation is hereby granted, provided that both the copyright
        !             8:  * notice and this permission notice appear in all copies of the
        !             9:  * software, derivative works or modified versions, and any portions
        !            10:  * thereof, and that both notices appear in supporting documentation.
        !            11:  * 
        !            12:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            13:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            14:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            15:  * 
        !            16:  * Carnegie Mellon requests users of this software to return to
        !            17:  * 
        !            18:  *  Software Distribution Coordinator  or  [email protected]
        !            19:  *  School of Computer Science
        !            20:  *  Carnegie Mellon University
        !            21:  *  Pittsburgh PA 15213-3890
        !            22:  * 
        !            23:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            24:  * the rights to redistribute these changes.
        !            25:  */
        !            26: /*
        !            27:  *  Here platform specific code to define sample_t & co
        !            28:  *  [to cope with weird DMA engines], and other customs
        !            29:  */
        !            30: #ifdef FLAMINGO
        !            31: #define splaudio       splbio
        !            32: #define        sample_t        unsigned char   /* later */
        !            33: #define        samples_to_chars        bcopy
        !            34: #define        chars_to_samples        bcopy
        !            35: /* Sparse space ! */
        !            36: typedef struct {
        !            37:        volatile unsigned long  cr;     /* command register (wo) */
        !            38: /*#define ir cr                                /* interrupt register (ro) */
        !            39:        volatile unsigned long  dr;     /* data register (rw) */
        !            40:        volatile unsigned long  dsr1;   /* D-channel status register 1 (ro) */
        !            41:        volatile unsigned long  der;    /* D-channel error register (ro) */
        !            42:        volatile unsigned long  dctb;   /* D-channel transmit register (wo) */
        !            43: /*#define dcrb dctb                    /* D-channel receive register (ro) */
        !            44:        volatile unsigned long  bbtb;   /* Bb-channel transmit register (wo) */
        !            45: /*#define bbrb bbtb                    /* Bb-channel receive register (ro) */
        !            46:        volatile unsigned long  bctb;   /* Bc-channel transmit register (wo)*/
        !            47: /*#define bcrb bctb                    /* Bc-channel receive register (ro) */
        !            48:        volatile unsigned long  dsr2;   /* D-channel status register 2 (ro) */
        !            49: } amd79c30_padded_regs_t;
        !            50: 
        !            51: /* give the chip 400ns in between accesses */
        !            52: #define        read_reg(r,v)                           \
        !            53:        { (v) = ((r) >> 8) & 0xff; delay(1); }
        !            54: 
        !            55: #define write_reg(r,v)                         \
        !            56:        { (r) = (((v) & 0xff) << 8) |           \
        !            57:                 0x200000000L; /*bytemask*/     \
        !            58:                delay(1); wbflush();            \
        !            59:        }
        !            60: 
        !            61: /* Write 16 bits of data from variable v to the data port of the audio chip */
        !            62: #define        WAMD16(regs, v)                         \
        !            63:        { write_reg((regs)->dr,v);              \
        !            64:          write_reg((regs)->dr,v>>8); }
        !            65: 
        !            66: #define mb() wbflush()
        !            67: 
        !            68: #endif /* FLAMINGO */
        !            69: 
        !            70: 
        !            71: #ifdef MAXINE
        !            72: #define splaudio       splhigh
        !            73: typedef struct {
        !            74:        volatile unsigned char  cr;     /* command register (wo) */
        !            75: /*#define ir cr                                /* interrupt register (ro) */
        !            76:        char                            pad0[63];
        !            77:        volatile unsigned char  dr;     /* data register (rw) */
        !            78:        char                            pad1[63];
        !            79:        volatile unsigned char  dsr1;   /* D-channel status register 1 (ro) */
        !            80:        char                            pad2[63];
        !            81:        volatile unsigned char  der;    /* D-channel error register (ro) */
        !            82:        char                            pad3[63];
        !            83:        volatile unsigned char  dctb;   /* D-channel transmit register (wo) */
        !            84: /*#define dcrb dctb                    /* D-channel receive register (ro) */
        !            85:        char                            pad4[63];
        !            86:        volatile unsigned char  bbtb;   /* Bb-channel transmit register (wo) */
        !            87: /*#define bbrb bbtb                    /* Bb-channel receive register (ro) */
        !            88:        char                            pad5[63];
        !            89:        volatile unsigned char  bctb;   /* Bc-channel transmit register (wo)*/
        !            90: /*#define bcrb bctb                    /* Bc-channel receive register (ro) */
        !            91:        char                            pad6[63];
        !            92:        volatile unsigned char  dsr2;   /* D-channel status register 2 (ro) */
        !            93:        char                            pad7[63];
        !            94: } amd79c30_padded_regs_t;
        !            95: 
        !            96: /* give the chip 400ns in between accesses */
        !            97: #define        read_reg(r,v)                           \
        !            98:        { (v) = (r); delay(1); }
        !            99: 
        !           100: #define write_reg(r,v)                         \
        !           101:        { (r) = (v); delay(1); wbflush(); }
        !           102: 
        !           103: /* Write 16 bits of data from variable v to the data port of the audio chip */
        !           104: #define        WAMD16(regs, v)                         \
        !           105:        { write_reg((regs)->dr,v);              \
        !           106:          write_reg((regs)->dr,v>>8); }
        !           107: 
        !           108: #define mb()
        !           109: 
        !           110: #endif /* MAXINE */
        !           111: 
        !           112: 
        !           113: #ifndef        sample_t
        !           114: #define        sample_t        unsigned char
        !           115: #define        samples_to_chars        bcopy
        !           116: #define        chars_to_samples        bcopy
        !           117: #endif
        !           118: 
        !           119: /*
        !           120:  * More architecture-specific customizations
        !           121:  */
        !           122: #ifdef alpha
        !           123: #define sample_rpt_int(x)      (((x)<<24)|((x)<<16)|((x)<<8)|((x)<<0))
        !           124: #define sample_rpt_long(x)     ((sample_rpt_int(x)<<32)|sample_rpt_int(x))
        !           125: #endif
        !           126: 
        !           127: #ifndef        sample_rpt_long
        !           128: #define sample_rpt_long(x)     (((x)<<24)|((x)<<16)|((x)<<8)|((x)<<0))
        !           129: #endif
        !           130: 

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.