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-rw-r--r--src/devices/imagedev/floppy.cpp170
1 files changed, 170 insertions, 0 deletions
diff --git a/src/devices/imagedev/floppy.cpp b/src/devices/imagedev/floppy.cpp
index ae8764d8c7c..fb99ba5dacb 100644
--- a/src/devices/imagedev/floppy.cpp
+++ b/src/devices/imagedev/floppy.cpp
@@ -118,6 +118,10 @@ DEFINE_DEVICE_TYPE(ALPS_3255190X, alps_3255190x, "alps_3255190x", "ALPS 32551901
// IBM 8" drives
DEFINE_DEVICE_TYPE(IBM_6360, ibm_6360, "ibm_6360", "IBM 6360 8\" single-sided single density floppy drive")
+// Mac 3.5" drives
+DEFINE_DEVICE_TYPE(MFD51W, mfd51w_device, "mfd51w", "Apple/Sony 3.5 DD variable-speed drive")
+DEFINE_DEVICE_TYPE(MFD75W, mfd75w_device, "mfd75w", "Apple/Sony 3.5 HD variable-speed drive")
+
const floppy_format_type floppy_image_device::default_floppy_formats[] = {
FLOPPY_D88_FORMAT,
@@ -551,6 +555,12 @@ image_init_result floppy_image_device::call_create(int format_type, util::option
return image_init_result::PASS;
}
+/* write protect, active high */
+bool floppy_image_device::wpt_r()
+{
+ return wpt;
+}
+
/* motor on, active low */
void floppy_image_device::mon_w(int state)
{
@@ -2349,3 +2359,163 @@ void ibm_6360::setup_characteristics()
variants.push_back(floppy_image::SSSD);
}
+
+
+//-------------------------------------------------
+// Variable-speed Macintosh drives
+//-------------------------------------------------
+
+mac_floppy_device::mac_floppy_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) : floppy_image_device(mconfig, type, tag, owner, clock)
+{
+}
+
+void mac_floppy_device::device_start()
+{
+ floppy_image_device::device_start();
+ save_item(NAME(m_reg));
+ save_item(NAME(m_strb));
+}
+
+void mac_floppy_device::device_reset()
+{
+ floppy_image_device::device_reset();
+ m_reg = 0;
+ m_strb = 0;
+}
+
+bool mac_floppy_device::wpt_r()
+{
+ static const char *const regnames[16] = {
+ "Dir", "Step", "Motor", "Eject",
+ "RdData0", "MFMDrive", "DoubleSide", "NoDrive",
+ "NoDiskInPl", "NoWrProtect", "NotTrack0", "NoTachPulse",
+ "RdData1", "MFMModeOn", "NoReady", "NotRevised"
+ };
+
+ logerror("fdc disk wpt_r reg %x %s\n", m_reg, regnames[m_reg]);
+ if(m_reg == 4)
+ machine().debug_break();
+
+ switch(m_reg) {
+ case 0x2: // Is the motor on?
+ return mon;
+
+ case 0x4: // Used when reading data, result ignored
+ return false;
+
+ case 0x5: // Is it a superdrive?
+ return true;
+
+ case 0x6: // Is the drive double-sided?
+ return true;
+
+ case 0x7: // Does drive exist?
+ return true;
+
+ case 0x8: // Is there a disk in the drive?
+ return image != nullptr;
+
+ case 0x9: // Is the disk write-protected?
+ return wpt;
+
+ case 0xa: // Not on track 0?
+ return cyl == 0;
+
+ case 0xf: // Does it implement the new interface?
+ return true;
+
+ default:
+ return false;
+ }
+}
+
+void mac_floppy_device::seek_phase_w(int phases)
+{
+ static const char *const regnames[16] = {
+ "DirNext", "StepOn", "MotorOn", "EjectOff",
+ "DirPrev", "StepOff", "MotorOff", "EjectOn",
+ "-", "MFMModeOn", "-", "-",
+ "-", "GCRModeOn", "-", "-"
+ };
+
+ bool prev_strb = m_strb;
+
+ m_reg = (phases & 7) | (ss ? 8 : 0);
+ m_strb = (phases >> 3) & 1;
+
+ if(m_strb && !prev_strb) {
+ switch(m_reg) {
+ case 0x0: // Step to cylinder + 1
+ logerror("cmd step dir +1\n");
+ dir_w(0);
+ break;
+
+ case 0x1: // Step
+ logerror("cmd step\n");
+ stp_w(0);
+ stp_w(1);
+ break;
+
+ case 0x2: // Motor on
+ logerror("cmd motor on\n");
+ mon_w(0);
+ break;
+
+ case 0x3: // End eject
+ logerror("cmd end eject\n");
+ break;
+
+ case 0x4: // Step to cylinder - 1
+ logerror("cmd step dir -1\n");
+ dir_w(1);
+ break;
+
+ case 0x6: // Motor off
+ logerror("cmd motor off\n");
+ mon_w(1);
+ break;
+
+ case 0x7: // Start eject
+ logerror("cmd start eject\n");
+ call_unload();
+ break;
+
+ default:
+ logerror("cmd reg %x %s\n", m_reg, regnames[m_reg]);
+ break;
+ }
+ }
+}
+
+mfd51w_device::mfd51w_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : mac_floppy_device(mconfig, MFD51W, tag, owner, clock)
+{
+}
+
+void mfd51w_device::setup_characteristics()
+{
+ form_factor = floppy_image::FF_35;
+ tracks = 80;
+ sides = 2;
+ set_rpm(300);
+
+ variants.push_back(floppy_image::SSSD);
+ variants.push_back(floppy_image::SSDD);
+ variants.push_back(floppy_image::DSDD);
+}
+
+mfd75w_device::mfd75w_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : mac_floppy_device(mconfig, MFD75W, tag, owner, clock)
+{
+}
+
+void mfd75w_device::setup_characteristics()
+{
+ form_factor = floppy_image::FF_35;
+ tracks = 80;
+ sides = 2;
+ set_rpm(300);
+
+ variants.push_back(floppy_image::SSSD);
+ variants.push_back(floppy_image::SSDD);
+ variants.push_back(floppy_image::DSDD);
+ variants.push_back(floppy_image::DSHD);
+}