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author Miodrag Milanovic <mmicko@gmail.com>2012-08-21 10:41:19 +0000
committer Miodrag Milanovic <mmicko@gmail.com>2012-08-21 10:41:19 +0000
commit7285b359d259b2ae0fdf85096571c386ec8c991a (patch)
treea027aff57f1a255f9ec6cfd3b68cabe4b6683998 /src/mess/machine/x68k_scsiext.c
parent67c425e90757876a6716b7867df30c0149912e74 (diff)
Merge of MESS sources (no whatsnew)
Diffstat (limited to 'src/mess/machine/x68k_scsiext.c')
-rw-r--r--src/mess/machine/x68k_scsiext.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/src/mess/machine/x68k_scsiext.c b/src/mess/machine/x68k_scsiext.c
new file mode 100644
index 00000000000..f30a6c55662
--- /dev/null
+++ b/src/mess/machine/x68k_scsiext.c
@@ -0,0 +1,115 @@
+/*
+ * x68k_scsiext.c
+ *
+ * Sharp CZ-6BS1 SCSI-1 controller
+ *
+ * Created on: 5/06/2012
+ */
+
+#include "emu.h"
+#include "machine/scsihd.h"
+#include "machine/mb89352.h"
+#include "machine/x68k_scsiext.h"
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type X68K_SCSIEXT = &device_creator<x68k_scsiext_device>;
+
+static const SCSIConfigTable x68k_scsiext_devtable =
+{
+ 7, /* 7 SCSI devices */
+ {
+ { SCSI_ID_0, ":exp:cz6bs1:extharddisk0" },
+ { SCSI_ID_1, ":exp:cz6bs1:extharddisk1" },
+ { SCSI_ID_2, ":exp:cz6bs1:extharddisk2" },
+ { SCSI_ID_3, ":exp:cz6bs1:extharddisk3" },
+ { SCSI_ID_4, ":exp:cz6bs1:extharddisk4" },
+ { SCSI_ID_5, ":exp:cz6bs1:extharddisk5" },
+ { SCSI_ID_6, ":exp:cz6bs1:extharddisk6" },
+ }
+};
+
+static const mb89352_interface x68k_scsiext_intf =
+{
+ &x68k_scsiext_devtable,
+ DEVCB_DEVICE_LINE_MEMBER(DEVICE_SELF_OWNER,x68k_scsiext_device,irq_w),
+ DEVCB_DEVICE_LINE_MEMBER(DEVICE_SELF_OWNER,x68k_scsiext_device,drq_w)
+};
+
+//-------------------------------------------------
+// rom_region - device-specific ROM region
+//-------------------------------------------------
+
+ROM_START( x68k_cz6bs1 )
+ ROM_REGION( 0x10000, "scsiexrom", 0 )
+ ROM_LOAD16_WORD_SWAP( "scsiexrom.bin", 0x0000, 0x2000, CRC(7be488de) SHA1(49616c09a8986ffe6a12ad600febe512f7ba8ae4) )
+ROM_END
+
+const rom_entry *x68k_scsiext_device::device_rom_region() const
+{
+ return ROM_NAME( x68k_cz6bs1 );
+}
+
+// device machine config
+static MACHINE_CONFIG_FRAGMENT( x68k_scsiext )
+ MCFG_MB89352A_ADD("mb89352_ext",x68k_scsiext_intf)
+ MCFG_DEVICE_ADD("extharddisk0", SCSIHD, 0)
+ MCFG_DEVICE_ADD("extharddisk1", SCSIHD, 0)
+ MCFG_DEVICE_ADD("extharddisk2", SCSIHD, 0)
+ MCFG_DEVICE_ADD("extharddisk3", SCSIHD, 0)
+ MCFG_DEVICE_ADD("extharddisk4", SCSIHD, 0)
+ MCFG_DEVICE_ADD("extharddisk5", SCSIHD, 0)
+ MCFG_DEVICE_ADD("extharddisk6", SCSIHD, 0)
+MACHINE_CONFIG_END
+
+machine_config_constructor x68k_scsiext_device::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( x68k_scsiext );
+}
+
+x68k_scsiext_device::x68k_scsiext_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+ : device_t(mconfig, X68K_SCSIEXT, "Sharp CZ-6BS1 SCSI-1", tag, owner, clock),
+ device_x68k_expansion_card_interface(mconfig, *this),
+ m_spc(*this, "mb89352_ext")
+{
+}
+
+void x68k_scsiext_device::device_start()
+{
+ device_t* cpu = machine().device("maincpu");
+ UINT8* ROM;
+ astring temp;
+ address_space* space = cpu->memory().space(AS_PROGRAM);
+ m_slot = dynamic_cast<x68k_expansion_slot_device *>(owner());
+ space->install_read_bank(0xea0020,0xea1fff,0,0,"scsi_ext");
+ space->unmap_write(0xea0020,0xea1fff,0,0);
+ ROM = machine().root_device().memregion(subtag(temp,"scsiexrom"))->base();
+ machine().root_device().membank("scsi_ext")->set_base(ROM);
+ space->install_readwrite_handler(0xea0000,0xea001f,0,0,read8_delegate(FUNC(x68k_scsiext_device::register_r),this),write8_delegate(FUNC(x68k_scsiext_device::register_w),this),0x00ff00ff);
+}
+
+void x68k_scsiext_device::device_reset()
+{
+}
+
+void x68k_scsiext_device::irq_w(int state)
+{
+ m_slot->irq2_w(state); // correct? Or perhaps selectable?
+}
+
+void x68k_scsiext_device::drq_w(int state)
+{
+ // TODO
+}
+
+READ8_MEMBER(x68k_scsiext_device::register_r)
+{
+ return m_spc->mb89352_r(space,offset);
+}
+
+WRITE8_MEMBER(x68k_scsiext_device::register_w)
+{
+ m_spc->mb89352_w(space,offset,data);
+}