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// license:BSD-3-Clause
// copyright-holders:Fabio Priuli
/**********************************************************************
Nintendo Entertainment System - Bandai Power Pad
**********************************************************************/
#include "emu.h"
#include "powerpad.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(NES_POWERPAD, nes_powerpad_device, "nes_powerpad", "Bandai Power Pad")
static INPUT_PORTS_START( nes_powerpad )
PORT_START("LAYOUT")
PORT_CONFNAME( 0x01, 0x00, "Power Pad Button Layout")
PORT_CONFSETTING( 0x00, "Side A" )
PORT_CONFSETTING( 0x01, "Side B" )
// difference between the two sides is that we mirror the key mapping to match the real pad layout!
PORT_START("POWERPAD.0")
// side A layout
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("PowerPad Top2") PORT_CODE(KEYCODE_Y) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x00)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x00)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_NAME("PowerPad Mid4") PORT_CODE(KEYCODE_J) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x00)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x00)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_NAME("PowerPad Mid3") PORT_CODE(KEYCODE_H) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x00)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON10 ) PORT_NAME("PowerPad Low2") PORT_CODE(KEYCODE_N) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x00)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON11 ) PORT_NAME("PowerPad Low1") PORT_CODE(KEYCODE_B) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x00)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_BUTTON7 ) PORT_NAME("PowerPad Mid2") PORT_CODE(KEYCODE_G) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x00)
// side B layout
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("PowerPad 2") PORT_CODE(KEYCODE_T) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x01)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("PowerPad 1") PORT_CODE(KEYCODE_R) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x01)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_NAME("PowerPad 5") PORT_CODE(KEYCODE_F) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x01)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON9 ) PORT_NAME("PowerPad 9") PORT_CODE(KEYCODE_V) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x01)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_NAME("PowerPad 6") PORT_CODE(KEYCODE_G) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x01)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON10 ) PORT_NAME("PowerPad 10") PORT_CODE(KEYCODE_B) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x01)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON11 ) PORT_NAME("PowerPad 11") PORT_CODE(KEYCODE_N) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x01)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_BUTTON7 ) PORT_NAME("PowerPad 7") PORT_CODE(KEYCODE_H) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x01)
PORT_START("POWERPAD.1")
// side A layout
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x00)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_NAME("PowerPad Top1") PORT_CODE(KEYCODE_T) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x00)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x00)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON8 ) PORT_NAME("PowerPad Mid1") PORT_CODE(KEYCODE_F) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x00)
PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x00)
// side B layout
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_NAME("PowerPad 4") PORT_CODE(KEYCODE_U) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x01)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_NAME("PowerPad 3") PORT_CODE(KEYCODE_Y) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x01)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON12 ) PORT_NAME("PowerPad 12") PORT_CODE(KEYCODE_M) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x01)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON8 ) PORT_NAME("PowerPad 8") PORT_CODE(KEYCODE_J) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x01)
PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_CONDITION("LAYOUT", 0x01, EQUALS, 0x01)
INPUT_PORTS_END
//-------------------------------------------------
// input_ports - device-specific input ports
//-------------------------------------------------
ioport_constructor nes_powerpad_device::device_input_ports() const
{
return INPUT_PORTS_NAME( nes_powerpad );
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// nes_powerpad_device - constructor
//-------------------------------------------------
nes_powerpad_device::nes_powerpad_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: device_t(mconfig, NES_POWERPAD, tag, owner, clock)
, device_nes_control_port_interface(mconfig, *this)
, m_ipt(*this, "POWERPAD.%u", 0)
{
}
//-------------------------------------------------
// device_start
//-------------------------------------------------
void nes_powerpad_device::device_start()
{
save_item(NAME(m_latch));
save_item(NAME(m_strobe));
}
//-------------------------------------------------
// read
//-------------------------------------------------
u8 nes_powerpad_device::read_bit34()
{
u8 ret = 0;
for (int i = 0; i < 2; i++)
{
if (m_strobe)
m_latch[i] = m_ipt[i]->read();
ret |= (m_latch[i] & 1) << (i + 3);
m_latch[i] = (m_latch[i] >> 1) | 0x80;
}
return ret;
}
//-------------------------------------------------
// write
//-------------------------------------------------
void nes_powerpad_device::write(u8 data)
{
if (write_strobe(data))
for (int i = 0; i < 2; i++)
m_latch[i] = m_ipt[i]->read();
}
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