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Amiga: Add support for the Commodore A2232 Serial Card.

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This commit is contained in:
Dirk Best 2014-05-23 23:26:10 +00:00
parent 52dcb22148
commit bed9b1c1b1
8 changed files with 814 additions and 0 deletions
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2
.gitattributes vendored
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@ -1480,6 +1480,8 @@ src/emu/bus/z88/z88.c svneol=native#text/plain
src/emu/bus/z88/z88.h svneol=native#text/plain
src/emu/bus/zorro/a2052.c svneol=native#text/plain
src/emu/bus/zorro/a2052.h svneol=native#text/plain
src/emu/bus/zorro/a2232.c svneol=native#text/plain
src/emu/bus/zorro/a2232.h svneol=native#text/plain
src/emu/bus/zorro/a590.c svneol=native#text/plain
src/emu/bus/zorro/a590.h svneol=native#text/plain
src/emu/bus/zorro/action_replay.c svneol=native#text/plain

1
src/emu/bus/bus.mak
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@ -1128,6 +1128,7 @@ OBJDIRS += $(BUSOBJ)/zorro
BUSOBJS += $(BUSOBJ)/zorro/zorro.o
BUSOBJS += $(BUSOBJ)/zorro/cards.o
BUSOBJS += $(BUSOBJ)/zorro/a2052.o
BUSOBJS += $(BUSOBJ)/zorro/a2232.o
BUSOBJS += $(BUSOBJ)/zorro/a590.o
BUSOBJS += $(BUSOBJ)/zorro/action_replay.o
BUSOBJS += $(BUSOBJ)/zorro/buddha.o

652
src/emu/bus/zorro/a2232.c Normal file
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@ -0,0 +1,652 @@
/***************************************************************************
Commodore A2232
license: MAME, GPL-2.0+
copyright-holders: Dirk Best
Zorro-II Serial Card
***************************************************************************/
#include "a2232.h"
//**************************************************************************
// CONSTANTS / MACROS
//**************************************************************************
#define VERBOSE 0
#define VERBOSE_DATA 0
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
const device_type A2232 = &device_creator<a2232_device>;
//-------------------------------------------------
// machine_config_additions - device-specific
// machine configurations
//-------------------------------------------------
static ADDRESS_MAP_START( iocpu_map, AS_PROGRAM, 8, a2232_device)
AM_RANGE(0x0000, 0x3fff) AM_RAM AM_SHARE("shared")
AM_RANGE(0x4000, 0x47ff) AM_READWRITE(acia_0_r, acia_0_w)
AM_RANGE(0x4800, 0x4fff) AM_READWRITE(acia_1_r, acia_1_w)
AM_RANGE(0x5000, 0x57ff) AM_READWRITE(acia_2_r, acia_2_w)
AM_RANGE(0x5800, 0x5fff) AM_READWRITE(acia_3_r, acia_3_w)
AM_RANGE(0x6000, 0x67ff) AM_READWRITE(acia_4_r, acia_4_w)
AM_RANGE(0x6800, 0x6fff) AM_READWRITE(acia_5_r, acia_5_w)
AM_RANGE(0x7000, 0x73ff) AM_WRITE(int2_w)
AM_RANGE(0x7400, 0x77ff) AM_READWRITE(acia_6_r, acia_6_w)
AM_RANGE(0x7800, 0x7fff) AM_READWRITE(cia_r, cia_w)
AM_RANGE(0x8000, 0x8000) AM_WRITE(irq_ack_w)
AM_RANGE(0xc000, 0xffff) AM_RAM AM_SHARE("shared")
ADDRESS_MAP_END
static MACHINE_CONFIG_FRAGMENT( a2232 )
// main cpu
MCFG_CPU_ADD("iocpu", M65CE02, XTAL_28_37516MHz / 8) // should run at Amiga clock 7M / 2
MCFG_CPU_PROGRAM_MAP(iocpu_map)
// acia
MCFG_DEVICE_ADD("acia_0", MOS6551, XTAL_28_37516MHz / 8)
MCFG_MOS6551_XTAL(XTAL_1_8432MHz)
MCFG_MOS6551_TXD_HANDLER(DEVWRITELINE("rs232_1", rs232_port_device, write_txd))
MCFG_MOS6551_IRQ_HANDLER(WRITELINE(a2232_device, acia_0_irq_w))
MCFG_DEVICE_ADD("acia_1", MOS6551, XTAL_28_37516MHz / 8)
MCFG_MOS6551_XTAL(XTAL_1_8432MHz)
MCFG_MOS6551_TXD_HANDLER(DEVWRITELINE("rs232_2", rs232_port_device, write_txd))
MCFG_MOS6551_IRQ_HANDLER(WRITELINE(a2232_device, acia_1_irq_w))
MCFG_DEVICE_ADD("acia_2", MOS6551, XTAL_28_37516MHz / 8)
MCFG_MOS6551_XTAL(XTAL_1_8432MHz)
MCFG_MOS6551_TXD_HANDLER(DEVWRITELINE("rs232_3", rs232_port_device, write_txd))
MCFG_MOS6551_IRQ_HANDLER(WRITELINE(a2232_device, acia_2_irq_w))
MCFG_DEVICE_ADD("acia_3", MOS6551, XTAL_28_37516MHz / 8)
MCFG_MOS6551_XTAL(XTAL_1_8432MHz)
MCFG_MOS6551_TXD_HANDLER(DEVWRITELINE("rs232_4", rs232_port_device, write_txd))
MCFG_MOS6551_IRQ_HANDLER(WRITELINE(a2232_device, acia_3_irq_w))
MCFG_DEVICE_ADD("acia_4", MOS6551, XTAL_28_37516MHz / 8)
MCFG_MOS6551_XTAL(XTAL_1_8432MHz)
MCFG_MOS6551_TXD_HANDLER(DEVWRITELINE("rs232_5", rs232_port_device, write_txd))
MCFG_MOS6551_IRQ_HANDLER(WRITELINE(a2232_device, acia_4_irq_w))
MCFG_DEVICE_ADD("acia_5", MOS6551, XTAL_28_37516MHz / 8)
MCFG_MOS6551_XTAL(XTAL_1_8432MHz)
MCFG_MOS6551_TXD_HANDLER(DEVWRITELINE("rs232_6", rs232_port_device, write_txd))
MCFG_MOS6551_IRQ_HANDLER(WRITELINE(a2232_device, acia_5_irq_w))
MCFG_DEVICE_ADD("acia_6", MOS6551, XTAL_28_37516MHz / 8)
MCFG_MOS6551_XTAL(XTAL_1_8432MHz)
MCFG_MOS6551_TXD_HANDLER(DEVWRITELINE("rs232_7", rs232_port_device, write_txd))
MCFG_MOS6551_IRQ_HANDLER(WRITELINE(a2232_device, acia_6_irq_w))
// cia
MCFG_DEVICE_ADD("cia", MOS8520, XTAL_1_8432MHz)
MCFG_MOS6526_IRQ_CALLBACK(WRITELINE(a2232_device, cia_irq_w))
MCFG_MOS6526_PA_INPUT_CALLBACK(READ8(a2232_device, cia_port_a_r))
MCFG_MOS6526_PB_INPUT_CALLBACK(READ8(a2232_device, cia_port_b_r))
MCFG_MOS6526_PB_OUTPUT_CALLBACK(WRITE8(a2232_device, cia_port_b_w))
// rs232 ports
MCFG_RS232_PORT_ADD("rs232_1", default_rs232_devices, NULL)
MCFG_RS232_RXD_HANDLER(WRITELINE(a2232_device, rs232_1_rxd_w))
MCFG_RS232_DCD_HANDLER(WRITELINE(a2232_device, rs232_1_dcd_w))
MCFG_RS232_DSR_HANDLER(DEVWRITELINE("acia_0", mos6551_device, write_dsr))
MCFG_RS232_CTS_HANDLER(WRITELINE(a2232_device, rs232_1_cts_w))
MCFG_RS232_PORT_ADD("rs232_2", default_rs232_devices, NULL)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE("acia_1", mos6551_device, write_rxd))
MCFG_RS232_DCD_HANDLER(WRITELINE(a2232_device, rs232_2_dcd_w))
MCFG_RS232_DSR_HANDLER(DEVWRITELINE("acia_1", mos6551_device, write_dsr))
MCFG_RS232_CTS_HANDLER(WRITELINE(a2232_device, rs232_2_cts_w))
MCFG_RS232_PORT_ADD("rs232_3", default_rs232_devices, NULL)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE("acia_2", mos6551_device, write_rxd))
MCFG_RS232_DCD_HANDLER(WRITELINE(a2232_device, rs232_3_dcd_w))
MCFG_RS232_DSR_HANDLER(DEVWRITELINE("acia_2", mos6551_device, write_dsr))
MCFG_RS232_CTS_HANDLER(WRITELINE(a2232_device, rs232_3_cts_w))
MCFG_RS232_PORT_ADD("rs232_4", default_rs232_devices, NULL)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE("acia_3", mos6551_device, write_rxd))
MCFG_RS232_DCD_HANDLER(WRITELINE(a2232_device, rs232_4_dcd_w))
MCFG_RS232_DSR_HANDLER(DEVWRITELINE("acia_3", mos6551_device, write_dsr))
MCFG_RS232_CTS_HANDLER(WRITELINE(a2232_device, rs232_4_cts_w))
MCFG_RS232_PORT_ADD("rs232_5", default_rs232_devices, NULL)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE("acia_4", mos6551_device, write_rxd))
MCFG_RS232_DCD_HANDLER(WRITELINE(a2232_device, rs232_5_dcd_w))
MCFG_RS232_DSR_HANDLER(DEVWRITELINE("acia_4", mos6551_device, write_dsr))
MCFG_RS232_CTS_HANDLER(WRITELINE(a2232_device, rs232_5_cts_w))
MCFG_RS232_PORT_ADD("rs232_6", default_rs232_devices, NULL)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE("acia_5", mos6551_device, write_rxd))
MCFG_RS232_DCD_HANDLER(WRITELINE(a2232_device, rs232_6_dcd_w))
MCFG_RS232_DSR_HANDLER(DEVWRITELINE("acia_5", mos6551_device, write_dsr))
MCFG_RS232_CTS_HANDLER(WRITELINE(a2232_device, rs232_6_cts_w))
MCFG_RS232_PORT_ADD("rs232_7", default_rs232_devices, NULL)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE("acia_6", mos6551_device, write_rxd))
MCFG_RS232_DCD_HANDLER(WRITELINE(a2232_device, rs232_7_dcd_w))
MCFG_RS232_DSR_HANDLER(DEVWRITELINE("acia_6", mos6551_device, write_dsr))
MCFG_RS232_CTS_HANDLER(WRITELINE(a2232_device, rs232_7_cts_w))
MACHINE_CONFIG_END
machine_config_constructor a2232_device::device_mconfig_additions() const
{
return MACHINE_CONFIG_NAME( a2232 );
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// a2232_device - constructor
//-------------------------------------------------
a2232_device::a2232_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
device_t(mconfig, A2232, "CBM A2232 Serial Card", tag, owner, clock, "a2232", __FILE__),
device_zorro2_card_interface(mconfig, *this),
m_iocpu(*this, "iocpu"),
m_acia_0(*this, "acia_0"),
m_acia_1(*this, "acia_1"),
m_acia_2(*this, "acia_2"),
m_acia_3(*this, "acia_3"),
m_acia_4(*this, "acia_4"),
m_acia_5(*this, "acia_5"),
m_acia_6(*this, "acia_6"),
m_cia(*this, "cia"),
m_shared_ram(*this, "shared"),
m_cia_port_a(0xff),
m_cia_port_b(0xff)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void a2232_device::device_start()
{
set_zorro_device();
memset(m_irqs, 0, sizeof(m_irqs));
}
//-------------------------------------------------
// device_reset_after_children - reset after child devices
//-------------------------------------------------
void a2232_device::device_reset_after_children()
{
// reset is kept high at reset, to allow the amiga time to upload its code
m_iocpu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
// cts connected to gnd
m_acia_0->write_cts(0);
m_acia_1->write_cts(0);
m_acia_2->write_cts(0);
m_acia_3->write_cts(0);
m_acia_4->write_cts(0);
m_acia_5->write_cts(0);
m_acia_6->write_cts(0);
}
//**************************************************************************
// IMPLEMENTATION
//**************************************************************************
void a2232_device::update_irqs()
{
// look for any active irq
for (int i = 0; i < IRQ_SOURCE_COUNT; i++)
{
if (m_irqs[i])
{
m_iocpu->set_input_line(INPUT_LINE_IRQ0, ASSERT_LINE);
return;
}
}
// if we get here no irqs are pending
m_iocpu->set_input_line(INPUT_LINE_IRQ0, CLEAR_LINE);
}
WRITE8_MEMBER( a2232_device::int2_w )
{
if (VERBOSE)
logerror("%s('%s'): int2_w %04x\n", shortname(), basetag(), data);
m_slot->int2_w(1);
}
WRITE8_MEMBER( a2232_device::irq_ack_w )
{
if (VERBOSE)
logerror("%s('%s'): irq_ack_w %04x\n", shortname(), basetag(), data);
m_irqs[IRQ_AMIGA] = CLEAR_LINE;
update_irqs();
}
//**************************************************************************
// AUTOCONFIG
//**************************************************************************
void a2232_device::autoconfig_base_address(offs_t address)
{
if (VERBOSE)
logerror("%s('%s'): autoconfig_base_address received: 0x%06x\n", shortname(), basetag(), address);
if (VERBOSE)
logerror("-> installing a2232\n");
// stop responding to default autoconfig
m_slot->m_space->unmap_readwrite(0xe80000, 0xe8007f);
m_slot->m_space->install_readwrite_handler(address, address + 0x3fff,
read16_delegate(FUNC(a2232_device::shared_ram_r), this),
write16_delegate(FUNC(a2232_device::shared_ram_w), this), 0xffff);
m_slot->m_space->install_readwrite_handler(address + 0x4000, address + 0x4001,
read16_delegate(FUNC(a2232_device::irq_ack_r), this),
write16_delegate(FUNC(a2232_device::irq_ack_w), this), 0xffff);
m_slot->m_space->install_readwrite_handler(address + 0x8000, address + 0x8001,
read16_delegate(FUNC(a2232_device::reset_low_r), this),
write16_delegate(FUNC(a2232_device::reset_low_w), this), 0xffff);
m_slot->m_space->install_readwrite_handler(address + 0xa000, address + 0xa001,
read16_delegate(FUNC(a2232_device::irq_r), this),
write16_delegate(FUNC(a2232_device::irq_w), this), 0xffff);
m_slot->m_space->install_readwrite_handler(address + 0xc000, address + 0xc001,
read16_delegate(FUNC(a2232_device::reset_high_r), this),
write16_delegate(FUNC(a2232_device::reset_high_w), this), 0xffff);
// we're done
m_slot->cfgout_w(0);
}
WRITE_LINE_MEMBER( a2232_device::cfgin_w )
{
if (VERBOSE)
logerror("%s('%s'): configin_w (%d)\n", shortname(), basetag(), state);
if (state == 0)
{
// setup autoconfig
autoconfig_board_type(BOARD_TYPE_ZORRO2);
autoconfig_board_size(BOARD_SIZE_64K);
autoconfig_product(0x46);
autoconfig_manufacturer(0x0202);
autoconfig_serial(0x00000000);
autoconfig_link_into_memory(false);
autoconfig_rom_vector_valid(false);
autoconfig_multi_device(false);
autoconfig_8meg_preferred(false);
autoconfig_can_shutup(true); // ?
// install autoconfig handler
m_slot->m_space->install_readwrite_handler(0xe80000, 0xe8007f,
read16_delegate(FUNC(amiga_autoconfig::autoconfig_read), static_cast<amiga_autoconfig *>(this)),
write16_delegate(FUNC(amiga_autoconfig::autoconfig_write), static_cast<amiga_autoconfig *>(this)), 0xffff);
}
}
//**************************************************************************
// ZORRO
//**************************************************************************
READ16_MEMBER( a2232_device::shared_ram_r )
{
UINT16 data = 0;
if (ACCESSING_BITS_0_7)
data |= m_shared_ram[(offset << 1) + 1];
else
data |= 0x00ff;
if (ACCESSING_BITS_8_15)
data |= m_shared_ram[offset << 1] << 8;
else
data |= 0xff00;
if (VERBOSE_DATA)
logerror("%s('%s'): shared_ram_r(%04x) %04x [mask = %04x]\n", shortname(), basetag(), offset << 1, data, mem_mask);
return data;
}
WRITE16_MEMBER( a2232_device::shared_ram_w )
{
if (VERBOSE_DATA)
logerror("%s('%s'): shared_ram_w(%04x) %04x [mask = %04x]\n", shortname(), basetag(), offset << 1, data, mem_mask);
if (ACCESSING_BITS_0_7)
m_shared_ram[(offset << 1) + 1] = data & 0xff;
if (ACCESSING_BITS_8_15)
m_shared_ram[offset << 1] = (data & 0xff00) >> 8;
}
READ16_MEMBER( a2232_device::irq_ack_r )
{
m_slot->int2_w(0);
return 0xffff;
}
WRITE16_MEMBER( a2232_device::irq_ack_w )
{
m_slot->int2_w(0);
}
READ16_MEMBER( a2232_device::reset_low_r )
{
m_iocpu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
return 0xffff;
}
WRITE16_MEMBER( a2232_device::reset_low_w )
{
m_iocpu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
}
READ16_MEMBER( a2232_device::irq_r )
{
m_irqs[IRQ_AMIGA] = ASSERT_LINE;
update_irqs();
return 0xffff;
}
WRITE16_MEMBER( a2232_device::irq_w )
{
m_irqs[IRQ_AMIGA] = ASSERT_LINE;
update_irqs();
}
READ16_MEMBER( a2232_device::reset_high_r )
{
UINT16 data = 0xffff;
if (VERBOSE)
logerror("%s('%s'): reset_high_r %04x [mask = %04x]\n", shortname(), basetag(), data, mem_mask);
m_iocpu->set_input_line(INPUT_LINE_RESET, CLEAR_LINE);
return data;
}
WRITE16_MEMBER( a2232_device::reset_high_w )
{
if (VERBOSE)
logerror("%s('%s'): reset_high_w %04x [mask = %04x]\n", shortname(), basetag(), data, mem_mask);
m_iocpu->set_input_line(INPUT_LINE_RESET, CLEAR_LINE);
}
//**************************************************************************
// ACIA
//**************************************************************************
READ8_MEMBER( a2232_device::acia_0_r )
{
return m_acia_0->read(space, offset >> 1);
}
WRITE8_MEMBER( a2232_device::acia_0_w )
{
m_acia_0->write(space, offset >> 1, data);
}
WRITE_LINE_MEMBER( a2232_device::acia_0_irq_w )
{
m_irqs[IRQ_ACIA_0] = state;
update_irqs();
}
READ8_MEMBER( a2232_device::acia_1_r )
{
return m_acia_1->read(space, offset >> 1);
}
WRITE8_MEMBER( a2232_device::acia_1_w )
{
m_acia_1->write(space, offset >> 1, data);
}
WRITE_LINE_MEMBER( a2232_device::acia_1_irq_w )
{
m_irqs[IRQ_ACIA_1] = state;
update_irqs();
}
READ8_MEMBER( a2232_device::acia_2_r )
{
return m_acia_2->read(space, offset >> 1);
}
WRITE8_MEMBER( a2232_device::acia_2_w )
{
m_acia_2->write(space, offset >> 1, data);
}
WRITE_LINE_MEMBER( a2232_device::acia_2_irq_w )
{
m_irqs[IRQ_ACIA_2] = state;
update_irqs();
}
READ8_MEMBER( a2232_device::acia_3_r )
{
return m_acia_3->read(space, offset >> 1);
}
WRITE8_MEMBER( a2232_device::acia_3_w )
{
m_acia_3->write(space, offset >> 1, data);
}
WRITE_LINE_MEMBER( a2232_device::acia_3_irq_w )
{
m_irqs[IRQ_ACIA_3] = state;
update_irqs();
}
READ8_MEMBER( a2232_device::acia_4_r )
{
return m_acia_4->read(space, offset >> 1);
}
WRITE8_MEMBER( a2232_device::acia_4_w )
{
m_acia_4->write(space, offset >> 1, data);
}
WRITE_LINE_MEMBER( a2232_device::acia_4_irq_w )
{
m_irqs[IRQ_ACIA_4] = state;
update_irqs();
}
READ8_MEMBER( a2232_device::acia_5_r )
{
return m_acia_5->read(space, offset >> 1);
}
WRITE8_MEMBER( a2232_device::acia_5_w )
{
m_acia_5->write(space, offset >> 1, data);
}
WRITE_LINE_MEMBER( a2232_device::acia_5_irq_w )
{
m_irqs[IRQ_ACIA_5] = state;
update_irqs();
}
READ8_MEMBER( a2232_device::acia_6_r )
{
return m_acia_6->read(space, offset >> 1);
}
WRITE8_MEMBER( a2232_device::acia_6_w )
{
m_acia_6->write(space, offset >> 1, data);
}
WRITE_LINE_MEMBER( a2232_device::acia_6_irq_w )
{
m_irqs[IRQ_ACIA_6] = state;
update_irqs();
}
//**************************************************************************
// CIA
//**************************************************************************
READ8_MEMBER( a2232_device::cia_r )
{
return m_cia->read(space, offset >> 1);
}
WRITE8_MEMBER( a2232_device::cia_w )
{
m_cia->write(space, offset >> 1, data);
}
WRITE_LINE_MEMBER( a2232_device::cia_irq_w )
{
m_irqs[IRQ_CIA] = state;
update_irqs();
}
READ8_MEMBER( a2232_device::cia_port_a_r )
{
return m_cia_port_a;
}
READ8_MEMBER( a2232_device::cia_port_b_r )
{
return m_cia_port_b;
}
WRITE8_MEMBER( a2232_device::cia_port_b_w )
{
// tod clock connected to pb7
m_cia->tod_w(BIT(data, 7));
}
//**************************************************************************
// RS232
//**************************************************************************
WRITE_LINE_MEMBER( a2232_device::rs232_1_rxd_w )
{
m_acia_0->write_rxd(state);
m_cia->sp_w(state);
}
WRITE_LINE_MEMBER( a2232_device::rs232_1_dcd_w )
{
m_cia_port_a &= ~0x01;
m_cia_port_a |= state << 0;
}
WRITE_LINE_MEMBER( a2232_device::rs232_1_cts_w )
{
m_cia_port_b &= ~0x01;
m_cia_port_b |= state << 0;
m_cia->cnt_w(state);
}
WRITE_LINE_MEMBER( a2232_device::rs232_2_dcd_w )
{
m_cia_port_a &= ~0x02;
m_cia_port_a |= state << 1;
}
WRITE_LINE_MEMBER( a2232_device::rs232_2_cts_w )
{
m_cia_port_b &= ~0x02;
m_cia_port_b |= state << 1;
}
WRITE_LINE_MEMBER( a2232_device::rs232_3_dcd_w )
{
m_cia_port_a &= ~0x04;
m_cia_port_a |= state << 2;
}
WRITE_LINE_MEMBER( a2232_device::rs232_3_cts_w )
{
m_cia_port_b &= ~0x04;
m_cia_port_b |= state << 2;
}
WRITE_LINE_MEMBER( a2232_device::rs232_4_dcd_w )
{
m_cia_port_a &= ~0x08;
m_cia_port_a |= state << 3;
}
WRITE_LINE_MEMBER( a2232_device::rs232_4_cts_w )
{
m_cia_port_b &= ~0x08;
m_cia_port_b |= state << 3;
}
WRITE_LINE_MEMBER( a2232_device::rs232_5_dcd_w )
{
m_cia_port_a &= ~0x10;
m_cia_port_a |= state << 4;
}
WRITE_LINE_MEMBER( a2232_device::rs232_5_cts_w )
{
m_cia_port_b &= ~0x10;
m_cia_port_b |= state << 4;
}
WRITE_LINE_MEMBER( a2232_device::rs232_6_dcd_w )
{
m_cia_port_a &= ~0x20;
m_cia_port_a |= state << 5;
}
WRITE_LINE_MEMBER( a2232_device::rs232_6_cts_w )
{
m_cia_port_b &= ~0x20;
m_cia_port_b |= state << 5;
}
WRITE_LINE_MEMBER( a2232_device::rs232_7_dcd_w )
{
m_cia_port_a &= ~0x40;
m_cia_port_a |= state << 6;
}
WRITE_LINE_MEMBER( a2232_device::rs232_7_cts_w )
{
m_cia_port_b &= ~0x40;
m_cia_port_b |= state << 6;
}

152
src/emu/bus/zorro/a2232.h Normal file
View File

@ -0,0 +1,152 @@
/***************************************************************************
Commodore A2232
license: MAME, GPL-2.0+
copyright-holders: Dirk Best
Zorro-II Serial Card
Provides the Amiga with 7 additional RS232 ports.
***************************************************************************/
#pragma once
#ifndef __A2232_H__
#define __A2232_H__
#include "emu.h"
#include "zorro.h"
#include "machine/autoconfig.h"
#include "cpu/m6502/m65ce02.h"
#include "machine/mos6551.h"
#include "machine/mos6526.h"
#include "bus/rs232/rs232.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> a2232_device
class a2232_device : public device_t, public device_zorro2_card_interface, public amiga_autoconfig
{
public:
// construction/destruction
a2232_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// cpu
WRITE8_MEMBER( int2_w );
WRITE8_MEMBER( irq_ack_w );
// zorro slot
DECLARE_READ16_MEMBER( shared_ram_r );
DECLARE_WRITE16_MEMBER( shared_ram_w );
DECLARE_READ16_MEMBER( irq_ack_r );
DECLARE_WRITE16_MEMBER( irq_ack_w );
DECLARE_READ16_MEMBER( reset_low_r );
DECLARE_WRITE16_MEMBER( reset_low_w );
DECLARE_READ16_MEMBER( irq_r );
DECLARE_WRITE16_MEMBER( irq_w );
DECLARE_READ16_MEMBER( reset_high_r );
DECLARE_WRITE16_MEMBER( reset_high_w );
// acia
DECLARE_READ8_MEMBER( acia_0_r );
DECLARE_WRITE8_MEMBER( acia_0_w );
DECLARE_WRITE_LINE_MEMBER( acia_0_irq_w );
DECLARE_READ8_MEMBER( acia_1_r );
DECLARE_WRITE8_MEMBER( acia_1_w );
DECLARE_WRITE_LINE_MEMBER( acia_1_irq_w );
DECLARE_READ8_MEMBER( acia_2_r );
DECLARE_WRITE8_MEMBER( acia_2_w );
DECLARE_WRITE_LINE_MEMBER( acia_2_irq_w );
DECLARE_READ8_MEMBER( acia_3_r );
DECLARE_WRITE8_MEMBER( acia_3_w );
DECLARE_WRITE_LINE_MEMBER( acia_3_irq_w );
DECLARE_READ8_MEMBER( acia_4_r );
DECLARE_WRITE8_MEMBER( acia_4_w );
DECLARE_WRITE_LINE_MEMBER( acia_4_irq_w );
DECLARE_READ8_MEMBER( acia_5_r );
DECLARE_WRITE8_MEMBER( acia_5_w );
DECLARE_WRITE_LINE_MEMBER( acia_5_irq_w );
DECLARE_READ8_MEMBER( acia_6_r );
DECLARE_WRITE8_MEMBER( acia_6_w );
DECLARE_WRITE_LINE_MEMBER( acia_6_irq_w );
// cia
DECLARE_READ8_MEMBER( cia_r );
DECLARE_WRITE8_MEMBER( cia_w );
DECLARE_WRITE_LINE_MEMBER( cia_irq_w );
DECLARE_READ8_MEMBER( cia_port_a_r );
DECLARE_READ8_MEMBER( cia_port_b_r );
DECLARE_WRITE8_MEMBER( cia_port_b_w );
// rs232
DECLARE_WRITE_LINE_MEMBER( rs232_1_rxd_w );
DECLARE_WRITE_LINE_MEMBER( rs232_1_dcd_w );
DECLARE_WRITE_LINE_MEMBER( rs232_1_cts_w );
DECLARE_WRITE_LINE_MEMBER( rs232_2_dcd_w );
DECLARE_WRITE_LINE_MEMBER( rs232_2_cts_w );
DECLARE_WRITE_LINE_MEMBER( rs232_3_dcd_w );
DECLARE_WRITE_LINE_MEMBER( rs232_3_cts_w );
DECLARE_WRITE_LINE_MEMBER( rs232_4_dcd_w );
DECLARE_WRITE_LINE_MEMBER( rs232_4_cts_w );
DECLARE_WRITE_LINE_MEMBER( rs232_5_dcd_w );
DECLARE_WRITE_LINE_MEMBER( rs232_5_cts_w );
DECLARE_WRITE_LINE_MEMBER( rs232_6_dcd_w );
DECLARE_WRITE_LINE_MEMBER( rs232_6_cts_w );
DECLARE_WRITE_LINE_MEMBER( rs232_7_dcd_w );
DECLARE_WRITE_LINE_MEMBER( rs232_7_cts_w );
protected:
virtual machine_config_constructor device_mconfig_additions() const;
virtual void device_start();
virtual void device_reset_after_children();
// device_zorro2_card_interface overrides
virtual DECLARE_WRITE_LINE_MEMBER( cfgin_w );
// amiga_autoconfig overrides
virtual void autoconfig_base_address(offs_t address);
private:
enum
{
IRQ_ACIA_0,
IRQ_ACIA_1,
IRQ_ACIA_2,
IRQ_ACIA_3,
IRQ_ACIA_4,
IRQ_ACIA_5,
IRQ_ACIA_6,
IRQ_CIA,
IRQ_AMIGA,
IRQ_SOURCE_COUNT
};
void update_irqs();
required_device<m65ce02_device> m_iocpu;
required_device<mos6551_device> m_acia_0;
required_device<mos6551_device> m_acia_1;
required_device<mos6551_device> m_acia_2;
required_device<mos6551_device> m_acia_3;
required_device<mos6551_device> m_acia_4;
required_device<mos6551_device> m_acia_5;
required_device<mos6551_device> m_acia_6;
required_device<mos8520_device> m_cia;
required_shared_ptr<UINT8> m_shared_ram;
int m_irqs[IRQ_SOURCE_COUNT];
UINT8 m_cia_port_a;
UINT8 m_cia_port_b;
};
// device type definition
extern const device_type A2232;
#endif // __A2232_H__

2
src/emu/bus/zorro/cards.c
View File

@ -25,11 +25,13 @@ SLOT_INTERFACE_END
SLOT_INTERFACE_START( zorro2_cards )
SLOT_INTERFACE("a2052", A2052)
SLOT_INTERFACE("a2091", A2091)
SLOT_INTERFACE("a2232", A2232)
SLOT_INTERFACE("buddha", BUDDHA)
SLOT_INTERFACE_END
SLOT_INTERFACE_START( zorro3_cards )
SLOT_INTERFACE("a2052", A2052)
SLOT_INTERFACE("a2091", A2091)
SLOT_INTERFACE("a2232", A2232)
SLOT_INTERFACE("buddha", BUDDHA)
SLOT_INTERFACE_END

1
src/emu/bus/zorro/cards.h
View File

@ -27,6 +27,7 @@
#include "emu.h"
#include "a2052.h"
#include "a2232.h"
#include "a590.h"
#include "action_replay.h"
#include "buddha.h"

3
src/emu/machine/mos6526.c
View File

@ -798,6 +798,9 @@ void mos6526_device::execute_run()
READ8_MEMBER( mos6526_device::read )
{
if (space.debugger_access())
return 0xff;
UINT8 data = 0;
switch (offset & 0x0f)

1
src/emu/machine/mos6551.h
View File

@ -31,6 +31,7 @@
#ifndef __MOS6551__
#define __MOS6551__
#include "emu.h"
#include "machine/clock.h"
#define MCFG_MOS6551_XTAL(_xtal) \