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vt102: Add printer port and UART (nw)

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This commit is contained in:
AJR 2018-03-10 13:57:00 -05:00
parent 4973da5f73
commit e98970d9ec
1 changed files with 30 additions and 1 deletions
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31
src/mame/drivers/vt100.cpp
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@ -27,6 +27,7 @@
#include "machine/com8116.h"
#include "machine/er1400.h"
#include "machine/i8251.h"
#include "machine/ins8250.h"
#include "machine/rstbuf.h"
#include "machine/vt100_kbd.h"
#include "video/vtvideo.h"
@ -49,6 +50,7 @@ public:
m_dbrg(*this, "dbrg"),
m_nvr(*this, "nvr"),
m_rstbuf(*this, "rstbuf"),
m_printer_uart(*this, "printer_uart"),
m_p_ram(*this, "p_ram")
{
}
@ -60,9 +62,12 @@ public:
required_device<com8116_device> m_dbrg;
required_device<er1400_device> m_nvr;
required_device<rst_pos_buffer_device> m_rstbuf;
optional_device<ins8250_device> m_printer_uart;
DECLARE_READ8_MEMBER(vt100_flags_r);
DECLARE_WRITE8_MEMBER(vt100_baud_rate_w);
DECLARE_WRITE8_MEMBER(vt100_nvr_latch_w);
DECLARE_READ8_MEMBER(printer_r);
DECLARE_WRITE8_MEMBER(printer_w);
DECLARE_READ8_MEMBER(vt100_read_video_ram_r);
DECLARE_WRITE8_MEMBER(uart_clock_w);
required_shared_ptr<uint8_t> m_p_ram;
@ -75,6 +80,7 @@ public:
void vt180(machine_config &config);
void vt100_io(address_map &map);
void vt100_mem(address_map &map);
void vt102_io(address_map &map);
void vt180_io(address_map &map);
void vt180_mem(address_map &map);
};
@ -166,6 +172,21 @@ ADDRESS_MAP_START(vt100_state::vt100_io)
// AM_RANGE (0xe2, 0xe2)
ADDRESS_MAP_END
READ8_MEMBER(vt100_state::printer_r)
{
return m_printer_uart->ins8250_r(space, offset >> 2);
}
WRITE8_MEMBER(vt100_state::printer_w)
{
m_printer_uart->ins8250_w(space, offset >> 2, data);
}
ADDRESS_MAP_START(vt100_state::vt102_io)
AM_IMPORT_FROM(vt100_io)
AM_RANGE(0x03, 0x03) AM_SELECT(0x1c) AM_READWRITE(printer_r, printer_w)
ADDRESS_MAP_END
/* Input ports */
static INPUT_PORTS_START( vt100 )
INPUT_PORTS_END
@ -305,7 +326,7 @@ MACHINE_CONFIG_START(vt100_state::vt102)
vt100(config);
MCFG_CPU_REPLACE("maincpu", I8085A, XTAL(24'073'400) / 4)
MCFG_CPU_PROGRAM_MAP(vt100_mem)
MCFG_CPU_IO_MAP(vt100_io)
MCFG_CPU_IO_MAP(vt102_io)
MCFG_CPU_IRQ_ACKNOWLEDGE_DRIVER(vt100_state, vt102_irq_callback)
MCFG_DEVICE_MODIFY("pusart")
@ -318,6 +339,14 @@ MACHINE_CONFIG_START(vt100_state::vt102)
MCFG_DEVICE_MODIFY("kbduart")
MCFG_AY31015_WRITE_TBMT_CB(INPUTLINE("maincpu", I8085_RST65_LINE))
MCFG_DEVICE_ADD("printer_uart", INS8250, XTAL(24'073'400) / 16)
MCFG_INS8250_OUT_TX_CB(DEVWRITELINE("printer", rs232_port_device, write_txd))
MCFG_INS8250_OUT_INT_CB(INPUTLINE("maincpu", I8085_RST55_LINE))
MCFG_RS232_PORT_ADD("printer", default_rs232_devices, nullptr)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE("printer_uart", ins8250_device, rx_w))
MCFG_RS232_DSR_HANDLER(DEVWRITELINE("printer_uart", ins8250_device, dsr_w))
MACHINE_CONFIG_END
/* VT1xx models: