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3b1: Add HDC device and some interrupts (nw)

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This commit is contained in:
AJR 2019-02-24 00:16:40 -05:00
parent 0ed2d2684e
commit e043fb16f1
1 changed files with 31 additions and 8 deletions
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39
src/mame/drivers/unixpc.cpp
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@ -20,13 +20,15 @@
#include "bus/centronics/ctronics.h"
#include "bus/rs232/rs232.h"
#include "imagedev/floppy.h"
#include "imagedev/harddriv.h"
#include "machine/6850acia.h"
#include "machine/74259.h"
#include "machine/bankdev.h"
#include "machine/input_merger.h"
#include "machine/output_latch.h"
#include "machine/ram.h"
//#include "machine/tc8250.h"
//#include "machine/wd1010.h"
#include "machine/wd1010.h"
#include "machine/wd_fdc.h"
#include "machine/z80sio.h"
#include "emupal.h"
@ -47,6 +49,7 @@ public:
m_maincpu(*this, "maincpu"),
m_gcr(*this, "gcr"),
m_tcr(*this, "tcr"),
m_int02(*this, "int02"),
m_ram(*this, RAM_TAG),
m_wd2797(*this, "wd2797"),
m_floppy(*this, "wd2797:0:525dd"),
@ -84,6 +87,8 @@ private:
DECLARE_WRITE_LINE_MEMBER(wd2797_intrq_w);
DECLARE_WRITE_LINE_MEMBER(wd2797_drq_w);
DECLARE_WRITE_LINE_MEMBER(wd1010_intrq_w);
void ramrombank_map(address_map &map);
void unixpc_mem(address_map &map);
@ -91,6 +96,7 @@ private:
required_device<cpu_device> m_maincpu;
required_device<ls259_device> m_gcr;
required_device<ls259_device> m_tcr;
required_device<input_merger_device> m_int02;
required_device<ram_device> m_ram;
required_device<wd2797_device> m_wd2797;
required_device<floppy_image_device> m_floppy;
@ -104,6 +110,7 @@ private:
uint16_t m_diskdmasize;
uint32_t m_diskdmaptr;
bool m_fdc_intrq;
bool m_hdc_intrq;
};
@ -205,7 +212,7 @@ READ16_MEMBER(unixpc_state::line_printer_r)
data |= 1; // no dial tone detected
data |= 1 << 1; // no parity error
data |= 0 << 2; // hdc intrq
data |= m_hdc_intrq ? 1<<2 : 0<<2;
data |= m_fdc_intrq ? 1<<3 : 0<<3;
//logerror("line_printer_r: %04x\n", data);
@ -266,6 +273,7 @@ WRITE_LINE_MEMBER(unixpc_state::wd2797_intrq_w)
{
logerror("wd2797_intrq_w: %d\n", state);
m_fdc_intrq = state;
m_int02->in_w<1>(state);
}
WRITE_LINE_MEMBER(unixpc_state::wd2797_drq_w)
@ -273,6 +281,15 @@ WRITE_LINE_MEMBER(unixpc_state::wd2797_drq_w)
logerror("wd2797_drq_w: %d\n", state);
}
/***************************************************************************
HARD DISK
***************************************************************************/
WRITE_LINE_MEMBER(unixpc_state::wd1010_intrq_w)
{
m_hdc_intrq = state;
m_int02->in_w<0>(state);
}
/***************************************************************************
VIDEO
@ -308,7 +325,7 @@ void unixpc_state::unixpc_mem(address_map &map)
map(0x4d0000, 0x4d7fff).w(FUNC(unixpc_state::diskdma_ptr_w));
map(0x4e0000, 0x4e0001).w(FUNC(unixpc_state::disk_control_w));
map(0x4f0001, 0x4f0001).w("printlatch", FUNC(output_latch_device::bus_w));
//map(0xe00000, 0xe0000f).rw("hdc", FUNC(wd1010_device::read), FUNC(wd1010_device::write)).umask16(0x00ff);
map(0xe00000, 0xe0000f).rw("hdc", FUNC(wd1010_device::read), FUNC(wd1010_device::write)).umask16(0x00ff);
map(0xe10000, 0xe10007).rw(m_wd2797, FUNC(wd_fdc_device_base::read), FUNC(wd_fdc_device_base::write)).umask16(0x00ff);
map(0xe30000, 0xe30001).r(FUNC(unixpc_state::rtc_r));
map(0xe40000, 0xe40001).select(0x7000).w(FUNC(unixpc_state::gcr_w));
@ -354,6 +371,9 @@ void unixpc_state::unixpc(machine_config &config)
LS259(config, m_tcr); // 10K
INPUT_MERGER_ANY_HIGH(config, m_int02); // 26H pins 3-6
m_int02->output_handler().set_inputline(m_maincpu, M68K_IRQ_2);
output_latch_device &mreg(OUTPUT_LATCH(config, "mreg"));
mreg.bit_handler<0>().set_output("led_0").invert();
mreg.bit_handler<1>().set_output("led_1").invert();
@ -387,15 +407,18 @@ void unixpc_state::unixpc(machine_config &config)
m_wd2797->drq_wr_callback().set(FUNC(unixpc_state::wd2797_drq_w));
FLOPPY_CONNECTOR(config, "wd2797:0", unixpc_floppies, "525dd", floppy_image_device::default_floppy_formats);
upd7201_new_device& mpsc(UPD7201_NEW(config, "mpsc", 19.6608_MHz_XTAL / 8));
wd1010_device &hdc(WD1010(config, "hdc", 40_MHz_XTAL / 8));
hdc.out_intrq_callback().set(FUNC(unixpc_state::wd1010_intrq_w));
HARDDISK(config, "hdc:0", 0);
upd7201_new_device &mpsc(UPD7201_NEW(config, "mpsc", 19.6608_MHz_XTAL / 8));
mpsc.out_txda_callback().set("rs232", FUNC(rs232_port_device::write_txd));
mpsc.out_dtra_callback().set("rs232", FUNC(rs232_port_device::write_dtr));
mpsc.out_rtsa_callback().set("rs232", FUNC(rs232_port_device::write_rts));
mpsc.out_int_callback().set_inputline(m_maincpu, M68K_IRQ_4);
ACIA6850(config, "kbc", 0);
// TODO: HDC
//WD1010(config, "hdc", 40_MHz_XTAL / 8);
acia6850_device &kbc(ACIA6850(config, "kbc", 0));
kbc.irq_handler().set_inputline(m_maincpu, M68K_IRQ_3);
// TODO: RTC
//TC8250(config, "rtc", 32.768_kHz_XTAL);