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// license:BSD-3-Clause
// copyright-holders:Barry Rodewald
/*
* amdrum.c
*
* Created on: 23/08/2014
*/
#include "emu.h"
#include "amdrum.h"
#include "sound/volt_reg.h"
#include "speaker.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(CPC_AMDRUM, cpc_amdrum_device, "cpc_amdrum", "Amdrum")
static MACHINE_CONFIG_START( cpc_amdrum )
MCFG_SPEAKER_STANDARD_MONO("speaker")
MCFG_SOUND_ADD("dac", DAC_8BIT_R2R, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.5) // unknown DAC
MCFG_DEVICE_ADD("vref", VOLTAGE_REGULATOR, 0) MCFG_VOLTAGE_REGULATOR_OUTPUT(5.0)
MCFG_SOUND_ROUTE_EX(0, "dac", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE_EX(0, "dac", -1.0, DAC_VREF_NEG_INPUT)
// no pass-through
MACHINE_CONFIG_END
machine_config_constructor cpc_amdrum_device::device_mconfig_additions() const
{
return MACHINE_CONFIG_NAME( cpc_amdrum );
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
cpc_amdrum_device::cpc_amdrum_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, CPC_AMDRUM, tag, owner, clock),
device_cpc_expansion_card_interface(mconfig, *this),
m_slot(nullptr),
m_dac(*this,"dac")
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void cpc_amdrum_device::device_start()
{
device_t* cpu = machine().device("maincpu");
address_space& space = cpu->memory().space(AS_IO);
m_slot = dynamic_cast<cpc_expansion_slot_device *>(owner());
space.install_write_handler(0xff00,0xffff,write8_delegate(FUNC(cpc_amdrum_device::dac_w),this));
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void cpc_amdrum_device::device_reset()
{
// TODO
}
WRITE8_MEMBER(cpc_amdrum_device::dac_w)
{
m_dac->write(data);
}
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