mirror of
https://github.com/holub/mame
synced 2025-07-05 01:48:29 +03:00
Imported LMC1992 audio mixer from MESS. (no whatsnew)
This commit is contained in:
Curt Coder
parent
b2c353c7b6
commit
92ebabc84f
2
.gitattributes
vendored
2
.gitattributes
vendored
@ -1068,6 +1068,8 @@ src/emu/sound/k054539.c svneol=native#text/plain
|
||||
src/emu/sound/k054539.h svneol=native#text/plain
|
||||
src/emu/sound/k056800.c svneol=native#text/plain
|
||||
src/emu/sound/k056800.h svneol=native#text/plain
|
||||
src/emu/sound/lmc1992.c svneol=native#text/plain
|
||||
src/emu/sound/lmc1992.h svneol=native#text/plain
|
||||
src/emu/sound/mas3507d.c svneol=native#text/plain
|
||||
src/emu/sound/mas3507d.h svneol=native#text/plain
|
||||
src/emu/sound/mos6560.c svneol=native#text/plain
|
||||
|
||||
271
src/emu/sound/lmc1992.c
Normal file
271
src/emu/sound/lmc1992.c
Normal file
@ -0,0 +1,271 @@
|
||||
/**********************************************************************
|
||||
|
||||
LMC1992 Digitally-Controlled Stereo Tone and Volume Circuit with
|
||||
Four-Channel Input-Selector emulation
|
||||
|
||||
Copyright MESS Team.
|
||||
Visit http://mamedev.org for licensing and usage restrictions.
|
||||
|
||||
**********************************************************************/
|
||||
|
||||
/*
|
||||
|
||||
TODO:
|
||||
|
||||
- inputs
|
||||
- outputs
|
||||
- bass
|
||||
- treble
|
||||
- volume
|
||||
- balance
|
||||
|
||||
*/
|
||||
|
||||
#include "lmc1992.h"
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// MACROS / CONSTANTS
|
||||
//**************************************************************************
|
||||
|
||||
#define LOG 0
|
||||
|
||||
|
||||
#define MICROWIRE_DEVICE_ADDRESS 2
|
||||
|
||||
|
||||
enum
|
||||
{
|
||||
FUNCTION_INPUT_SELECT = 0,
|
||||
FUNCTION_BASS,
|
||||
FUNCTION_TREBLE,
|
||||
FUNCTION_VOLUME,
|
||||
FUNCTION_RIGHT_FRONT_FADER,
|
||||
FUNCTION_LEFT_FRONT_FADER,
|
||||
FUNCTION_RIGHT_REAR_FADER,
|
||||
FUNCTION_LEFT_REAR_FADER
|
||||
};
|
||||
|
||||
|
||||
enum
|
||||
{
|
||||
INPUT_SELECT_OPEN = 0,
|
||||
INPUT_SELECT_INPUT1,
|
||||
INPUT_SELECT_INPUT2,
|
||||
INPUT_SELECT_INPUT3,
|
||||
INPUT_SELECT_INPUT4
|
||||
};
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// GLOBAL VARIABLES
|
||||
//**************************************************************************
|
||||
|
||||
// devices
|
||||
const device_type LMC1992 = lmc1992_device_config::static_alloc_device_config;
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// DEVICE CONFIGURATION
|
||||
//**************************************************************************
|
||||
|
||||
//-------------------------------------------------
|
||||
// lmc1992_device_config - constructor
|
||||
//-------------------------------------------------
|
||||
|
||||
lmc1992_device_config::lmc1992_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock)
|
||||
: device_config(mconfig, static_alloc_device_config, "LMC1992", tag, owner, clock),
|
||||
device_config_sound_interface(mconfig, *this)
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// static_alloc_device_config - allocate a new
|
||||
// configuration object
|
||||
//-------------------------------------------------
|
||||
|
||||
device_config *lmc1992_device_config::static_alloc_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock)
|
||||
{
|
||||
return global_alloc(lmc1992_device_config(mconfig, tag, owner, clock));
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// alloc_device - allocate a new device object
|
||||
//-------------------------------------------------
|
||||
|
||||
device_t *lmc1992_device_config::alloc_device(running_machine &machine) const
|
||||
{
|
||||
return auto_alloc(machine, lmc1992_device(machine, *this));
|
||||
}
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// INLINE HELPERS
|
||||
//**************************************************************************
|
||||
|
||||
//-------------------------------------------------
|
||||
// execute_command -
|
||||
//-------------------------------------------------
|
||||
|
||||
inline void lmc1992_device::execute_command(int addr, int data)
|
||||
{
|
||||
switch (addr)
|
||||
{
|
||||
case FUNCTION_INPUT_SELECT:
|
||||
if (data == INPUT_SELECT_OPEN)
|
||||
{
|
||||
if (LOG) logerror("LMC1992 '%s' Input Select : OPEN\n", tag());
|
||||
}
|
||||
else
|
||||
{
|
||||
if (LOG) logerror("LMC1992 '%s' Input Select : INPUT%u\n", tag(), data);
|
||||
}
|
||||
m_input = data;
|
||||
break;
|
||||
|
||||
case FUNCTION_BASS:
|
||||
if (LOG) logerror("LMC1992 '%s' Bass : %i dB\n", tag(), -40 + (data * 2));
|
||||
m_bass = data;
|
||||
break;
|
||||
|
||||
case FUNCTION_TREBLE:
|
||||
if (LOG) logerror("LMC1992 '%s' Treble : %i dB\n", tag(), -40 + (data * 2));
|
||||
m_treble = data;
|
||||
break;
|
||||
|
||||
case FUNCTION_VOLUME:
|
||||
if (LOG) logerror("LMC1992 '%s' Volume : %i dB\n", tag(), -80 + (data * 2));
|
||||
m_volume = data;
|
||||
break;
|
||||
|
||||
case FUNCTION_RIGHT_FRONT_FADER:
|
||||
if (LOG) logerror("LMC1992 '%s' Right Front Fader : %i dB\n", tag(), -40 + (data * 2));
|
||||
m_fader_rf = data;
|
||||
break;
|
||||
|
||||
case FUNCTION_LEFT_FRONT_FADER:
|
||||
if (LOG) logerror("LMC1992 '%s' Left Front Fader : %i dB\n", tag(), -40 + (data * 2));
|
||||
m_fader_lf = data;
|
||||
break;
|
||||
|
||||
case FUNCTION_RIGHT_REAR_FADER:
|
||||
if (LOG) logerror("LMC1992 '%s' Right Rear Fader : %i dB\n", tag(), -40 + (data * 2));
|
||||
m_fader_rr = data;
|
||||
break;
|
||||
|
||||
case FUNCTION_LEFT_REAR_FADER:
|
||||
if (LOG) logerror("LMC1992 '%s' Left Rear Fader : %i dB\n", tag(), -40 + (data * 2));
|
||||
m_fader_lr = data;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// LIVE DEVICE
|
||||
//**************************************************************************
|
||||
|
||||
//-------------------------------------------------
|
||||
// lmc1992_device - constructor
|
||||
//-------------------------------------------------
|
||||
|
||||
lmc1992_device::lmc1992_device(running_machine &_machine, const lmc1992_device_config &config)
|
||||
: device_t(_machine, config),
|
||||
device_sound_interface(_machine, config, *this),
|
||||
m_config(config)
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// device_start - device-specific startup
|
||||
//-------------------------------------------------
|
||||
|
||||
void lmc1992_device::device_start()
|
||||
{
|
||||
// create sound streams
|
||||
|
||||
// register for state saving
|
||||
save_item(NAME(m_enable));
|
||||
save_item(NAME(m_data));
|
||||
save_item(NAME(m_clock));
|
||||
save_item(NAME(m_si));
|
||||
save_item(NAME(m_input));
|
||||
save_item(NAME(m_bass));
|
||||
save_item(NAME(m_treble));
|
||||
save_item(NAME(m_volume));
|
||||
save_item(NAME(m_fader_rf));
|
||||
save_item(NAME(m_fader_lf));
|
||||
save_item(NAME(m_fader_rr));
|
||||
save_item(NAME(m_fader_lr));
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// sound_stream_update - handle update requests for
|
||||
// our sound stream
|
||||
//-------------------------------------------------
|
||||
|
||||
void lmc1992_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// clock_w -
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE_LINE_MEMBER( lmc1992_device::clock_w )
|
||||
{
|
||||
if ((m_enable == 0) && ((m_clock == 0) && (state == 1)))
|
||||
{
|
||||
m_si >>= 1;
|
||||
m_si = m_si & 0x7fff;
|
||||
|
||||
if (m_data)
|
||||
{
|
||||
m_si &= 0x8000;
|
||||
}
|
||||
}
|
||||
|
||||
m_clock = state;
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// data_w -
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE_LINE_MEMBER( lmc1992_device::data_w )
|
||||
{
|
||||
m_data = state;
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// enable_w -
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE_LINE_MEMBER( lmc1992_device::enable_w )
|
||||
{
|
||||
if ((m_enable == 0) && (state == 1))
|
||||
{
|
||||
UINT8 device_addr = (m_si & 0xc000) >> 14;
|
||||
UINT8 addr = (m_si & 0x3800) >> 11;
|
||||
UINT8 data = (m_si & 0x07e0) >> 5;
|
||||
|
||||
if (device_addr == MICROWIRE_DEVICE_ADDRESS)
|
||||
{
|
||||
execute_command(addr, data);
|
||||
}
|
||||
}
|
||||
|
||||
m_enable = state;
|
||||
}
|
||||
138
src/emu/sound/lmc1992.h
Normal file
138
src/emu/sound/lmc1992.h
Normal file
@ -0,0 +1,138 @@
|
||||
/**********************************************************************
|
||||
|
||||
LMC1992 Digitally-Controlled Stereo Tone and Volume Circuit with
|
||||
Four-Channel Input-Selector emulation
|
||||
|
||||
Copyright MESS Team.
|
||||
Visit http://mamedev.org for licensing and usage restrictions.
|
||||
|
||||
**********************************************************************
|
||||
_____ _____
|
||||
Data 1 |* \_/ | 28 V+
|
||||
Clock 2 | | 27 Bypass
|
||||
Enable 3 | | 26 Right Input 1
|
||||
Left Input 1 4 | | 25 Right Input 2
|
||||
Left Input 2 5 | | 24 Right Input 3
|
||||
Left Input 3 6 | | 23 Right Input 4
|
||||
Left Input 4 7 | LMC1992 | 22 Right Select Out
|
||||
Left Select Out 8 | | 21 Right Select In
|
||||
Left Select In 9 | | 20 Right Tone In
|
||||
Left Tone In 10 | | 19 Right Tone Out
|
||||
Left Tone Out 11 | | 18 Right Op Amp Out
|
||||
Left Op Amp Out 12 | | 17 Right Rear Out
|
||||
Left Rear Out 13 | | 16 Right Front Out
|
||||
Left Front Out 14 |_____________| 15 Ground
|
||||
|
||||
**********************************************************************/
|
||||
|
||||
#pragma once
|
||||
|
||||
#ifndef __LMC1992__
|
||||
#define __LMC1992__
|
||||
|
||||
#include "emu.h"
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// MACROS / CONSTANTS
|
||||
//**************************************************************************
|
||||
|
||||
enum
|
||||
{
|
||||
LMC1992_LEFT_INPUT_1 = 0,
|
||||
LMC1992_LEFT_INPUT_2,
|
||||
LMC1992_LEFT_INPUT_3,
|
||||
LMC1992_LEFT_INPUT_4,
|
||||
LMC1992_RIGHT_INPUT_1,
|
||||
LMC1992_RIGHT_INPUT_2,
|
||||
LMC1992_RIGHT_INPUT_3,
|
||||
LMC1992_RIGHT_INPUT_4
|
||||
};
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// INTERFACE CONFIGURATION MACROS
|
||||
//**************************************************************************
|
||||
|
||||
#define MCFG_LMC1992_ADD(_tag) \
|
||||
MCFG_DEVICE_ADD(_tag, LMC1992, 0)
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// TYPE DEFINITIONS
|
||||
//**************************************************************************
|
||||
|
||||
// ======================> lmc1992_device_config
|
||||
|
||||
class lmc1992_device_config : public device_config,
|
||||
public device_config_sound_interface
|
||||
{
|
||||
friend class lmc1992_device;
|
||||
|
||||
// construction/destruction
|
||||
lmc1992_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock);
|
||||
|
||||
public:
|
||||
// allocators
|
||||
static device_config *static_alloc_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock);
|
||||
virtual device_t *alloc_device(running_machine &machine) const;
|
||||
|
||||
// inline configuration helpers
|
||||
static void static_set_config(device_config *device, int clock2);
|
||||
};
|
||||
|
||||
|
||||
// ======================> lmc1992_device
|
||||
|
||||
class lmc1992_device : public device_t,
|
||||
public device_sound_interface
|
||||
{
|
||||
friend class lmc1992_device_config;
|
||||
|
||||
// construction/destruction
|
||||
lmc1992_device(running_machine &_machine, const lmc1992_device_config &_config);
|
||||
|
||||
public:
|
||||
DECLARE_WRITE_LINE_MEMBER( clock_w );
|
||||
DECLARE_WRITE_LINE_MEMBER( data_w );
|
||||
DECLARE_WRITE_LINE_MEMBER( enable_w );
|
||||
|
||||
protected:
|
||||
// device-level overrides
|
||||
virtual void device_start();
|
||||
|
||||
// internal callbacks
|
||||
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
|
||||
|
||||
private:
|
||||
inline void execute_command(int addr, int data);
|
||||
|
||||
sound_stream *m_stream[4];
|
||||
|
||||
int m_enable; // enable latch
|
||||
int m_data; // data latch
|
||||
int m_clock; // clock latch
|
||||
UINT16 m_si; // serial in shift register
|
||||
|
||||
int m_input; // input select
|
||||
int m_bass; // bass
|
||||
int m_treble; // treble
|
||||
int m_volume; // volume
|
||||
int m_fader_rf; // right front fader
|
||||
int m_fader_lf; // left front fader
|
||||
int m_fader_rr; // right rear fader
|
||||
int m_fader_lr; // left rear fader
|
||||
|
||||
const lmc1992_device_config &m_config;
|
||||
};
|
||||
|
||||
|
||||
// device type definition
|
||||
extern const device_type LMC1992;
|
||||
|
||||
|
||||
|
||||
#endif
|
||||
@ -280,6 +280,16 @@ endif
|
||||
|
||||
|
||||
|
||||
#-------------------------------------------------
|
||||
# LMC1992 mixer chip
|
||||
#-------------------------------------------------
|
||||
|
||||
ifneq ($(filter LMC1992,$(SOUNDS)),)
|
||||
SOUNDOBJS += $(SOUNDOBJ)/lmc1992.o
|
||||
endif
|
||||
|
||||
|
||||
|
||||
#-------------------------------------------------
|
||||
# MAS 3507D MPEG 1/2 Layer 2/3 Audio Decoder
|
||||
#-------------------------------------------------
|
||||
|
||||
@ -229,6 +229,7 @@ SOUNDS += MOS656X
|
||||
SOUNDS += S2636
|
||||
SOUNDS += ASC
|
||||
SOUNDS += MAS3507D
|
||||
SOUNDS += LMC1992
|
||||
|
||||
|
||||
#-------------------------------------------------
|
||||
|
||||
Loading…
Reference in New Issue
Block a user