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/*
* drivers/sbus/audio/amd7930.h
*
* Copyright (C) 1996 Thomas K. Dyas (tdyas@noc.rutgers.edu)
*
* Definitions for the AMD79C30 Digital Subscriber Controller which is
* used as an audio chip in sun4c architecture machines. The
* information in this file is based on Advanced Micro Devices
* Publication 09893, Rev G, Amendment /0, Final (a.k.a. the data
* sheet).
*/
#ifndef _AMD7930_H_
#define _AMD7930_H_
#include <linux/types.h>
/* Register interface presented to the CPU by the amd7930. */
struct amd7930
{
__volatile__ __u8 cr; /* Command Register (W) */
#define ir cr /* Interrupt Register (R) */
__volatile__ __u8 dr; /* Data Register (R/W) */
__volatile__ __u8 dsr1; /* D-channel Status Register 1 (R) */
__volatile__ __u8 der; /* D-channel Error Register (R) */
__volatile__ __u8 dctb; /* D-channel Transmit Buffer (W) */
#define dcrb dctb /* D-channel Receive Buffer (R) */
__volatile__ __u8 bbtb; /* Bb-channel Transmit Buffer (W) */
#define bbrb bbtb /* Bb-channel Receive Buffer (R) */
__volatile__ __u8 bctb; /* Bc-channel Transmit Buffer (W) */
#define bcrb bctb /* Bc-channel Receive Buffer (R) */
__volatile__ __u8 dsr2; /* D-channel Status Register 2 (R) */
};
/* Indirect registers in the Main Audio Processor. */
struct amd7930_map {
__u16 x[8];
__u16 r[8];
__u16 gx;
__u16 gr;
__u16 ger;
__u16 stgr;
__u16 ftgr;
__u16 atgr;
__u8 mmr1;
__u8 mmr2;
};
/* The amd7930 has "indirect registers" which are accessed by writing
* the register number into the Command Register and then reading or
* writing values from the Data Register as appropriate. We define the
* AMR_* macros to be the indirect register numbers and AM_* macros to
* be bits in whatever register is referred to.
*/
/* Initialization */
#define AMR_INIT 0x21
#define AM_INIT_ACTIVE 0x01
#define AM_INIT_DATAONLY 0x02
#define AM_INIT_POWERDOWN 0x03
#define AM_INIT_DISABLE_INTS 0x04
#define AMR_INIT2 0x20
#define AM_INIT2_ENABLE_POWERDOWN 0x20
#define AM_INIT2_ENABLE_MULTIFRAME 0x10
/* Line Interface Unit */
#define AMR_LIU_LSR 0xA1
#define AMR_LIU_LPR 0xA2
#define AMR_LIU_LMR1 0xA3
#define AMR_LIU_LMR2 0xA4
#define AMR_LIU_2_4 0xA5
#define AMR_LIU_MF 0xA6
#define AMR_LIU_MFSB 0xA7
#define AMR_LIU_MFQB 0xA8
/* Multiplexor */
#define AMR_MUX_MCR1 0x41
#define AMR_MUX_MCR2 0x42
#define AMR_MUX_MCR3 0x43
#define AM_MUX_CHANNEL_B1 0x01
#define AM_MUX_CHANNEL_B2 0x02
#define AM_MUX_CHANNEL_Ba 0x03
#define AM_MUX_CHANNEL_Bb 0x04
#define AM_MUX_CHANNEL_Bc 0x05
#define AM_MUX_CHANNEL_Bd 0x06
#define AM_MUX_CHANNEL_Be 0x07
#define AM_MUX_CHANNEL_Bf 0x08
#define AMR_MUX_MCR4 0x44
#define AM_MUX_MCR4_ENABLE_INTS 0x08
#define AM_MUX_MCR4_REVERSE_Bb 0x10
#define AM_MUX_MCR4_REVERSE_Bc 0x20
#define AMR_MUX_1_4 0x45
/* Main Audio Processor */
#define AMR_MAP_X 0x61
#define AMR_MAP_R 0x62
#define AMR_MAP_GX 0x63
#define AMR_MAP_GR 0x64
#define AMR_MAP_GER 0x65
#define AMR_MAP_STGR 0x66
#define AMR_MAP_FTGR_1_2 0x67
#define AMR_MAP_ATGR_1_2 0x68
#define AMR_MAP_MMR1 0x69
#define AM_MAP_MMR1_ALAW 0x01
#define AM_MAP_MMR1_GX 0x02
#define AM_MAP_MMR1_GR 0x04
#define AM_MAP_MMR1_GER 0x08
#define AM_MAP_MMR1_X 0x10
#define AM_MAP_MMR1_R 0x20
#define AM_MAP_MMR1_STG 0x40
#define AM_MAP_MMR1_LOOPBACK 0x80
#define AMR_MAP_MMR2 0x6A
#define AM_MAP_MMR2_AINB 0x01
#define AM_MAP_MMR2_LS 0x02
#define AM_MAP_MMR2_ENABLE_DTMF 0x04
#define AM_MAP_MMR2_ENABLE_TONEGEN 0x08
#define AM_MAP_MMR2_ENABLE_TONERING 0x10
#define AM_MAP_MMR2_DISABLE_HIGHPASS 0x20
#define AM_MAP_MMR2_DISABLE_AUTOZERO 0x40
#define AMR_MAP_1_10 0x6B
#define AMR_MAP_MMR3 0x6C
#define AMR_MAP_STRA 0x6D
#define AMR_MAP_STRF 0x6E
#define AMR_MAP_PEAKX 0x70
#define AMR_MAP_PEAKR 0x71
#define AMR_MAP_15_16 0x72
/* Data Link Controller */
#define AMR_DLC_FRAR_1_2_3 0x81
#define AMR_DLC_SRAR_1_2_3 0x82
#define AMR_DLC_TAR 0x83
#define AMR_DLC_DRLR 0x84
#define AMR_DLC_DTCR 0x85
#define AMR_DLC_DMR1 0x86
#define AMR_DLC_DMR2 0x87
#define AMR_DLC_1_7 0x88
#define AMR_DLC_DRCR 0x89
#define AMR_DLC_RNGR1 0x8A
#define AMR_DLC_RNGR2 0x8B
#define AMR_DLC_FRAR4 0x8C
#define AMR_DLC_SRAR4 0x8D
#define AMR_DLC_DMR3 0x8E
#define AMR_DLC_DMR4 0x8F
#define AMR_DLC_12_15 0x90
#define AMR_DLC_ASR 0x91
#define AMR_DLC_EFCR 0x92
/* Peripheral Port */
#define AMR_PP_PPCR1 0xC0
#define AMR_PP_PPSR 0xC1
#define AMR_PP_PPIER 0xC2
#define AMR_PP_MTDR 0xC3
#define AMR_PP_MRDR 0xC3
#define AMR_PP_CITDR0 0xC4
#define AMR_PP_CIRDR0 0xC4
#define AMR_PP_CITDR1 0xC5
#define AMR_PP_CIRDR1 0xC5
#define AMR_PP_PPCR2 0xC8
#define AMR_PP_PPCR3 0xC9
#endif
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