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basf7100: Hook up centronics port

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This commit is contained in:
Dirk Best 2021-04-23 11:30:33 +02:00
parent f6774092f1
commit 31ff3739c4
1 changed files with 39 additions and 6 deletions
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41
src/mame/drivers/basf7100.cpp
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@ -42,7 +42,6 @@
- Improve video emulation
- Find documentation for switches
- Hook up serial ports
- Hook up parallel port
Notes:
- Runs the BOS operating system, possibly also CP/M?
@ -55,6 +54,7 @@
#include "machine/i8255.h"
#include "machine/pic8259.h"
#include "machine/wd_fdc.h"
#include "bus/centronics/ctronics.h"
#include "imagedev/floppy.h"
#include "machine/basf7100_kbd.h"
#include "emupal.h"
@ -77,6 +77,7 @@ public:
m_fdccpu(*this, "fdccpu"),
m_pic(*this, "pic"),
m_ppi(*this, "ppi%u", 0U),
m_centronics(*this, "centronics"),
m_fdc(*this, "fdc"),
m_floppy(*this, "fdc:%u", 0),
m_screen(*this, "screen"),
@ -104,6 +105,7 @@ private:
required_device<z80_device> m_fdccpu;
required_device<pic8259_device> m_pic;
required_device_array<i8255_device, 5> m_ppi;
required_device<centronics_device> m_centronics;
required_device<fd1791_device> m_fdc;
required_device_array<floppy_connector, 3> m_floppy;
required_device<screen_device> m_screen;
@ -115,7 +117,8 @@ private:
enum : uint8_t
{
INT_KEYBOARD = 0x08,
INT_VBLANK = 0x10
INT_VBLANK = 0x10,
INT_CENTRONICS = 0x40
};
void mem_map(address_map &map);
@ -138,6 +141,9 @@ private:
void vblank_w(int state);
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void centronics_ctrl_w(uint8_t data);
void centronics_busy_w(int state);
void fdc_drq_w(int state);
uint8_t fdc_ctrl_r();
void fdc_ctrl_w(uint8_t data);
@ -438,6 +444,25 @@ uint32_t basf7100_state::screen_update(screen_device &screen, bitmap_rgb32 &bitm
}
//**************************************************************************
// CENTRONICS
//**************************************************************************
void basf7100_state::centronics_ctrl_w(uint8_t data)
{
// ppi configured in mode1 (strobed output)
m_centronics->write_strobe(BIT(data, 7));
}
void basf7100_state::centronics_busy_w(int state)
{
m_int_flags &= ~INT_CENTRONICS;
m_int_flags |= state ? 0x00 : INT_CENTRONICS;
m_pic->ir6_w(state);
}
//**************************************************************************
// FLOPPY
//**************************************************************************
@ -584,9 +609,9 @@ void basf7100_state::basf7100(machine_config &config)
m_ppi[0]->out_pc_callback().set(FUNC(basf7100_state::keyboard_w));
I8255(config, m_ppi[1]);
// port a: output (printer data)
m_ppi[1]->out_pa_callback().set("centronics_latch", FUNC(output_latch_device::write));
// port b: output (leds?)
// port c: input (printer handshake)
m_ppi[1]->out_pc_callback().set(FUNC(basf7100_state::centronics_ctrl_w));
I8255(config, m_ppi[2]);
// port a: input (rs232 flags, auto dial)
@ -617,6 +642,14 @@ void basf7100_state::basf7100(machine_config &config)
PALETTE(config, m_palette, palette_device::MONOCHROME_HIGHLIGHT);
// centronics
output_latch_device &centronics_latch(OUTPUT_LATCH(config, "centronics_latch"));
CENTRONICS(config, m_centronics, centronics_devices, "printer");
m_centronics->set_output_latch(centronics_latch);
m_centronics->ack_handler().set(m_ppi[1], FUNC(i8255_device::pc6_w));
m_centronics->busy_handler().set(FUNC(basf7100_state::centronics_busy_w));
// floppy
FD1791(config, m_fdc, 1000000);
m_fdc->intrq_wr_callback().set_inputline(m_fdccpu, INPUT_LINE_IRQ0);