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Diffstat (limited to 'src/devices/bus/a1bus/a1cffa.c')
-rw-r--r--src/devices/bus/a1bus/a1cffa.c156
1 files changed, 156 insertions, 0 deletions
diff --git a/src/devices/bus/a1bus/a1cffa.c b/src/devices/bus/a1bus/a1cffa.c
new file mode 100644
index 00000000000..f67470bb5db
--- /dev/null
+++ b/src/devices/bus/a1bus/a1cffa.c
@@ -0,0 +1,156 @@
+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/*********************************************************************
+
+ a1cffa.c
+
+ Rich Dreher's Compact Flash for Apple I
+
+*********************************************************************/
+
+#include "a1cffa.h"
+
+/***************************************************************************
+ PARAMETERS
+***************************************************************************/
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+#define CFFA_ROM_REGION "cffa_rom"
+#define CFFA_ATA_TAG "cffa_ata"
+
+const device_type A1BUS_CFFA = &device_creator<a1bus_cffa_device>;
+
+MACHINE_CONFIG_FRAGMENT( cffa )
+ MCFG_ATA_INTERFACE_ADD(CFFA_ATA_TAG, ata_devices, "hdd", NULL, false)
+MACHINE_CONFIG_END
+
+ROM_START( cffa )
+ ROM_REGION(0x2000, CFFA_ROM_REGION, 0)
+ ROM_LOAD ("cffaromv1.1.bin", 0x0000, 0x1fe0, CRC(bf6b55ad) SHA1(6a290be18485a06f243a3561c4e01be5aafa4bfe) )
+ROM_END
+
+//-------------------------------------------------
+// machine_config_additions - device-specific
+// machine configurations
+//-------------------------------------------------
+
+machine_config_constructor a1bus_cffa_device::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( cffa );
+}
+
+const rom_entry *a1bus_cffa_device::device_rom_region() const
+{
+ return ROM_NAME( cffa );
+}
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+a1bus_cffa_device::a1bus_cffa_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, A1BUS_CFFA, "CFFA Compact Flash for Apple I", tag, owner, clock, "cffa1", __FILE__),
+ device_a1bus_card_interface(mconfig, *this),
+ m_ata(*this, CFFA_ATA_TAG)
+{
+}
+
+a1bus_cffa_device::a1bus_cffa_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source) :
+ device_t(mconfig, type, name, tag, owner, clock, shortname, source),
+ device_a1bus_card_interface(mconfig, *this),
+ m_ata(*this, CFFA_ATA_TAG)
+{
+}
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void a1bus_cffa_device::device_start()
+{
+ set_a1bus_device();
+
+ m_rom = device().machine().root_device().memregion(this->subtag(CFFA_ROM_REGION).c_str())->base();
+
+ install_device(0xafe0, 0xafff, read8_delegate(FUNC(a1bus_cffa_device::cffa_r), this), write8_delegate(FUNC(a1bus_cffa_device::cffa_w), this));
+ install_bank(0x9000, 0xafdf, 0, 0, (char *)"bank_cffa1", m_rom);
+
+ save_item(NAME(m_lastdata));
+ save_item(NAME(m_writeprotect));
+}
+
+void a1bus_cffa_device::device_reset()
+{
+ m_writeprotect = false;
+ m_lastdata = 0;
+}
+
+READ8_MEMBER(a1bus_cffa_device::cffa_r)
+{
+ switch (offset & 0xf)
+ {
+ case 0x0:
+ return m_lastdata>>8;
+
+ case 0x3:
+ m_writeprotect = false;
+ break;
+
+ case 0x4:
+ m_writeprotect = true;
+ break;
+
+ case 0x8:
+ m_lastdata = m_ata->read_cs0(space, (offset & 0xf) - 8, 0xff);
+ return m_lastdata & 0x00ff;
+
+ case 0x9:
+ case 0xa:
+ case 0xb:
+ case 0xc:
+ case 0xd:
+ case 0xe:
+ case 0xf:
+ return m_ata->read_cs0(space, (offset & 0xf) - 8, 0xff);
+ }
+
+ return 0xff;
+}
+
+WRITE8_MEMBER(a1bus_cffa_device::cffa_w)
+{
+ switch (offset & 0xf)
+ {
+ case 0x0:
+ m_lastdata &= 0x00ff;
+ m_lastdata |= data<<8;
+ break;
+
+ case 0x3:
+ m_writeprotect = false;
+ break;
+
+ case 0x4:
+ m_writeprotect = true;
+ break;
+
+
+ case 0x8:
+ m_ata->write_cs0(space, (offset & 0xf) - 8, data, 0xff);
+ break;
+
+ case 0x9:
+ case 0xa:
+ case 0xb:
+ case 0xc:
+ case 0xd:
+ case 0xe:
+ case 0xf:
+ m_ata->write_cs0(space, (offset & 0xf) - 8, data, 0xff);
+ break;
+
+ }
+}