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lw700i: connect fdc and floppy drive, don't work yet because of dma

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This commit is contained in:
cracyc 2023-04-08 19:08:07 -05:00
parent 38adcf151a
commit 4c0d40e05e
3 changed files with 34 additions and 5 deletions
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14
src/devices/machine/upd765.cpp
View File

@ -3352,9 +3352,15 @@ void hd63266f_device::abort_w(u8 data)
int hd63266f_device::check_command()
{
switch(command[0] & 0x1f) {
switch(command[0]) {
case 0x0e:
return C_SLEEP;
case 0x0b:
case 0x2b:
return command_pos == 4 ? C_SPECIFY : C_INCOMPLETE;
case 0x4b:
case 0x6b:
return command_pos == 7 ? C_SPECIFY2 : C_INCOMPLETE;
}
return upd765_family_device::check_command();
}
@ -3370,6 +3376,12 @@ void hd63266f_device::execute_command(int cmd)
motor_state = 0;
LOGCOMMAND("sleep\n");
break;
case C_SPECIFY2:
spec = (command[1] << 8) | command[2];
LOGCOMMAND("command specify2 %02x %02x: step_rate=%d ms, head_unload=%d ms, head_load=%d ms, non_dma=%s\n",
command[1], command[2], 16-(command[1]>>4), (command[1]&0x0f)<<4, command[2]&0xfe, ((command[2]&1)==1)? "true":"false");
main_phase = PHASE_CMD;
break;
case C_SENSE_DRIVE_STATUS:
upd765_family_device::execute_command(cmd);
if(inp_cb)

1
src/devices/machine/upd765.h
View File

@ -282,6 +282,7 @@ protected:
C_VERSION,
C_SLEEP,
C_ABORT,
C_SPECIFY2,
C_INVALID,
C_INCOMPLETE

24
src/mame/brother/lw700i.cpp
View File

@ -19,6 +19,8 @@
#include "machine/at28c16.h"
#include "machine/nvram.h"
#include "machine/timer.h"
#include "machine/upd765.h"
#include "imagedev/floppy.h"
#include "screen.h"
#include "speaker.h"
@ -36,14 +38,13 @@ public:
m_maincpu(*this, "maincpu"),
m_mainram(*this, "mainram"),
m_screen(*this, "screen"),
m_fdc(*this, "fdc"),
m_floppy(*this, "fdc:1"),
m_keyboard(*this, "X%u", 0)
{ }
void lw700i(machine_config &config);
uint16_t status_r() { return 0x8080; } // "ready"
void data_w(uint16_t data) { }
uint8_t p7_r();
uint8_t pb_r();
void pb_w(uint8_t data);
@ -63,6 +64,8 @@ private:
required_device<h83003_device> m_maincpu;
required_shared_ptr<uint16_t> m_mainram;
required_device<screen_device> m_screen;
required_device<hd63266f_device> m_fdc;
required_device<floppy_connector> m_floppy;
required_ioport_array<9> m_keyboard;
// driver_device overrides
@ -117,6 +120,7 @@ TIMER_DEVICE_CALLBACK_MEMBER(lw700i_state::vbl_interrupt)
void lw700i_state::machine_reset()
{
m_fdc->rate_w(1); // machine supports 250k and 500k rate, this must be controlled somewhere
}
void lw700i_state::machine_start()
@ -157,7 +161,7 @@ void lw700i_state::main_map(address_map &map)
{
map(0x000000, 0x1fffff).rom().region("maincpu", 0x0000);
map(0x600000, 0x63ffff).ram().share("mainram"); // 256K of main RAM
map(0xe00000, 0xe00001).rw(FUNC(lw700i_state::status_r), FUNC(lw700i_state::data_w));
map(0xe00000, 0xe00003).m(m_fdc, FUNC(hd63266f_device::map));
map(0xf00048, 0xf00049).ram();
}
@ -270,11 +274,17 @@ static INPUT_PORTS_START( lw700i )
INPUT_PORTS_END
static void lw700i_floppies(device_slot_interface &device)
{
device.option_add("35hd", FLOPPY_35_HD);
}
void lw700i_state::lw700i(machine_config &config)
{
H83003(config, m_maincpu, XTAL(16'000'000));
m_maincpu->set_addrmap(AS_PROGRAM, &lw700i_state::main_map);
m_maincpu->set_addrmap(AS_IO, &lw700i_state::io_map);
m_maincpu->tend0().set(m_fdc, FUNC(hd63266f_device::tc_line_w));
TIMER(config, "scantimer").configure_scanline(FUNC(lw700i_state::vbl_interrupt), "screen", 0, 1);
SCREEN(config, m_screen, SCREEN_TYPE_LCD);
@ -283,6 +293,12 @@ void lw700i_state::lw700i(machine_config &config)
m_screen->set_screen_update(FUNC(lw700i_state::screen_update));
m_screen->set_size(640, 400);
m_screen->set_visarea(0, 480, 0, 128);
HD63266F(config, m_fdc, XTAL(16'000'000));
m_fdc->intrq_wr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ4);
m_fdc->drq_wr_callback().set_inputline(m_maincpu, H8_INPUT_LINE_DREQ2); // dreq2 is not connected in the hd83003
m_fdc->inp_rd_callback().set([this](){ return !m_floppy->get_device()->dskchg_r(); });
FLOPPY_CONNECTOR(config, m_floppy, lw700i_floppies, "35hd", floppy_image_device::default_pc_floppy_formats);
}
ROM_START(lw700i)