diff options
Diffstat (limited to 'src/emu/machine/cr511b.c')
-rw-r--r-- | src/emu/machine/cr511b.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/emu/machine/cr511b.c b/src/emu/machine/cr511b.c new file mode 100644 index 00000000000..0a4ee90bf80 --- /dev/null +++ b/src/emu/machine/cr511b.c @@ -0,0 +1,123 @@ +/*************************************************************************** + + CR-511-B CD-ROM drive + + license: MAME, GPL-2.0+ + copyright-holders: Dirk Best + + CD-ROM drive with a custom MKE/Panasonic interface as used in the + Commodore CDTV and early SoundBlaster cards. + +***************************************************************************/ + +#include "cr511b.h" + + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +const device_type CR511B = &device_creator<cr511b_device>; + +//------------------------------------------------- +// machine_config_additions - device-specific +// machine configurations +//------------------------------------------------- + +static MACHINE_CONFIG_FRAGMENT( cr511b ) + MCFG_CDROM_ADD("cdrom") + MCFG_CDROM_INTERFACE("cdrom") + MCFG_SOUND_ADD("cdda", CDDA, 0) + MCFG_SOUND_ROUTE(0, ":lspeaker", 1.0) + MCFG_SOUND_ROUTE(1, ":rspeaker", 1.0) +MACHINE_CONFIG_END + +machine_config_constructor cr511b_device::device_mconfig_additions() const +{ + return MACHINE_CONFIG_NAME( cr511b ); +} + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// cr511b_device - constructor +//------------------------------------------------- + +cr511b_device::cr511b_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : + device_t(mconfig, CR511B, "CR-511-B CD-ROM drive", tag, owner, clock, "cr511b", __FILE__), + m_cdrom(*this, "cdrom"), + m_cdda(*this, "cdda"), + m_stch_handler(*this), + m_sten_handler(*this), + m_drq_handler(*this), + m_dten_handler(*this), + m_scor_handler(*this), + m_xaen_handler(*this), + m_frame_timer(NULL), + m_motor(false), + m_enabled(-1), + m_cmd(-1) +{ +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void cr511b_device::device_start() +{ + // resolve callbacks + m_stch_handler.resolve_safe(); + m_sten_handler.resolve_safe(); + m_drq_handler.resolve_safe(); + m_dten_handler.resolve_safe(); + m_scor_handler.resolve_safe(); + m_xaen_handler.resolve_safe(); + + m_frame_timer = timer_alloc(0, NULL); + m_frame_timer->adjust(attotime::never); +} + +//------------------------------------------------- +// device_reset - device-specific reset +//------------------------------------------------- + +void cr511b_device::device_reset() +{ +} + +//------------------------------------------------- +// device_timer - device-specific timer events +//------------------------------------------------- + +void cr511b_device::device_timer(emu_timer &timer, device_timer_id tid, int param, void *ptr) +{ +} + + +//************************************************************************** +// IMPLEMENTATION +//************************************************************************** + +READ8_MEMBER( cr511b_device::read ) +{ + return 0xff; +} + +WRITE8_MEMBER ( cr511b_device::write ) +{ + +} + +WRITE_LINE_MEMBER( cr511b_device::enable_w ) +{ + m_enabled = state; +} + +WRITE_LINE_MEMBER( cr511b_device::cmd_w ) +{ + m_cmd = state; +} |