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author angelosa <lordkale4@gmail.com>2024-07-27 14:32:40 +0200
committer angelosa <lordkale4@gmail.com>2024-07-27 14:32:52 +0200
commit84a9012313cd77c2863675255c8db55065f20e9e (patch)
treebe9dbd6ee91fc28664dab9a2add2d17be9e83ab1
parentaaae6d69543f2718ee89f45b097af8d7cb76695d (diff)
bus/pci: ncr53c825 stub [Roberto Fresca, Gaby, recreativas.org]
-rw-r--r--scripts/src/bus.lua6
-rw-r--r--src/devices/bus/pci/ncr53c825.cpp95
-rw-r--r--src/devices/bus/pci/ncr53c825.h39
-rw-r--r--src/devices/bus/pci/pci_slot.cpp2
-rw-r--r--src/mame/misc/odyssey.cpp6
5 files changed, 142 insertions, 6 deletions
diff --git a/scripts/src/bus.lua b/scripts/src/bus.lua
index c8fb32906f5..37db2a904a8 100644
--- a/scripts/src/bus.lua
+++ b/scripts/src/bus.lua
@@ -5504,8 +5504,8 @@ end
if (BUSES["PC8801"]~=null) then
files {
- MAME_DIR .. "src/devices/bus/pc8801/gsx8800.cpp",
- MAME_DIR .. "src/devices/bus/pc8801/gsx8800.h",
+ MAME_DIR .. "src/devices/bus/pc8801/gsx8800.cpp",
+ MAME_DIR .. "src/devices/bus/pc8801/gsx8800.h",
MAME_DIR .. "src/devices/bus/pc8801/pc8801_23.cpp",
MAME_DIR .. "src/devices/bus/pc8801/pc8801_23.h",
MAME_DIR .. "src/devices/bus/pc8801/pc8801_31.cpp",
@@ -5617,6 +5617,8 @@ if (BUSES["PCI"]~=null) then
MAME_DIR .. "src/devices/bus/pci/geforce.h",
MAME_DIR .. "src/devices/bus/pci/mga2064w.cpp",
MAME_DIR .. "src/devices/bus/pci/mga2064w.h",
+ MAME_DIR .. "src/devices/bus/pci/ncr53c825.cpp",
+ MAME_DIR .. "src/devices/bus/pci/ncr53c825.h",
MAME_DIR .. "src/devices/bus/pci/oti_spitfire.cpp",
MAME_DIR .. "src/devices/bus/pci/oti_spitfire.h",
MAME_DIR .. "src/devices/bus/pci/opti82c861.cpp",
diff --git a/src/devices/bus/pci/ncr53c825.cpp b/src/devices/bus/pci/ncr53c825.cpp
new file mode 100644
index 00000000000..b30263cd604
--- /dev/null
+++ b/src/devices/bus/pci/ncr53c825.cpp
@@ -0,0 +1,95 @@
+// license:BSD-3-Clause
+// copyright-holders:
+/**************************************************************************************************
+
+NCR / Symbios Logic / LSI Logic 53C825A
+
+**************************************************************************************************/
+
+#include "emu.h"
+#include "ncr53c825.h"
+
+#define LOG_WARN (1U << 1)
+
+#define VERBOSE (LOG_GENERAL | LOG_WARN)
+//#define LOG_OUTPUT_FUNC osd_printf_info
+#include "logmacro.h"
+
+#define LOGWARN(...) LOGMASKED(LOG_WARN, __VA_ARGS__)
+
+
+DEFINE_DEVICE_TYPE(NCR53C825_PCI, ncr53c825_pci_device, "ncr53c825_pci", "NCR/Symbios Logic/LSI Logic 53C825A PCI")
+
+ncr53c825_pci_device::ncr53c825_pci_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
+ : pci_card_device(mconfig, type, tag, owner, clock)
+ , m_scsi_rom(*this, "scsi_rom")
+{
+ // '825AE straps subvendor with 0x1000'1000, revision 0x26
+ set_ids(0x10000003, 0x14, 0x010000, 0x00000000);
+}
+
+ncr53c825_pci_device::ncr53c825_pci_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+ : ncr53c825_pci_device(mconfig, NCR53C825_PCI, tag, owner, clock)
+{
+}
+
+void ncr53c825_pci_device::device_add_mconfig(machine_config &config)
+{
+ // TODO: SCSI controller, derives from 53C710 according to ROM
+}
+
+ROM_START( ncr53c825 )
+ ROM_REGION32_LE( 0x10000, "scsi_rom", ROMREGION_ERASEFF )
+ // misc/odyssey.cpp SCSI board
+ ROM_SYSTEM_BIOS( 0, "odyssey", "NCR SDMS PCI-3.07.00 Lomas Optimum III" )
+ ROMX_LOAD( "tms28f512a.u4", 0x0000, 0x10000, CRC(0d5a8054) SHA1(ed22a726976fdc34db6176a1384609f93d50f27a), ROM_BIOS(0) )
+ROM_END
+
+const tiny_rom_entry *ncr53c825_pci_device::device_rom_region() const
+{
+ return ROM_NAME(ncr53c825);
+}
+
+
+void ncr53c825_pci_device::device_start()
+{
+ pci_card_device::device_start();
+
+ add_map( 128, M_IO, FUNC(ncr53c825_pci_device::io_map));
+ add_map( 128, M_MEM, FUNC(ncr53c825_pci_device::io_map));
+ add_map( 4*1024, M_MEM, FUNC(ncr53c825_pci_device::scripts_map));
+ add_rom((u8 *)m_scsi_rom->base(), 0x8000);
+ expansion_rom_base = 0xc8000;
+
+ // INTA#
+ intr_pin = 1;
+
+ // TODO: min_gnt = 0x11, max_lat = 0x40
+}
+
+void ncr53c825_pci_device::device_reset()
+{
+ pci_card_device::device_reset();
+
+ command = 0x0000;
+ command_mask = 0x157;
+ // status = 0x0010; for 'AE only
+ status = 0x0000;
+
+ remap_cb();
+}
+
+void ncr53c825_pci_device::config_map(address_map &map)
+{
+ pci_card_device::config_map(map);
+// map(0x40, 0x40) power management capability for 'AE
+// map(0x46, 0x46) bridge support extension for 'A
+}
+
+void ncr53c825_pci_device::io_map(address_map &map)
+{
+}
+
+void ncr53c825_pci_device::scripts_map(address_map &map)
+{
+}
diff --git a/src/devices/bus/pci/ncr53c825.h b/src/devices/bus/pci/ncr53c825.h
new file mode 100644
index 00000000000..1297f340dbc
--- /dev/null
+++ b/src/devices/bus/pci/ncr53c825.h
@@ -0,0 +1,39 @@
+// license:BSD-3-Clause
+// copyright-holders:
+
+#ifndef MAME_BUS_PCI_NCR53C825_PCI_H
+#define MAME_BUS_PCI_NCR53C825_PCI_H
+
+#pragma once
+
+#include "pci_slot.h"
+
+class ncr53c825_pci_device : public pci_card_device
+{
+public:
+ ncr53c825_pci_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ static constexpr feature_type unemulated_features() { return feature::MEDIA; }
+
+protected:
+ ncr53c825_pci_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
+
+ virtual void device_start() override;
+ virtual void device_reset() override;
+ virtual void device_add_mconfig(machine_config &config) override;
+
+ virtual const tiny_rom_entry *device_rom_region() const override;
+
+ virtual void config_map(address_map &map) override;
+
+ void io_map(address_map &map);
+ void scripts_map(address_map &map);
+
+ required_memory_region m_scsi_rom;
+private:
+ // ...
+};
+
+DECLARE_DEVICE_TYPE(NCR53C825_PCI, ncr53c825_pci_device)
+
+#endif // MAME_BUS_PCI_NCR53C825_PCI_H
diff --git a/src/devices/bus/pci/pci_slot.cpp b/src/devices/bus/pci/pci_slot.cpp
index 1a7ef5b760f..ed297fbda38 100644
--- a/src/devices/bus/pci/pci_slot.cpp
+++ b/src/devices/bus/pci/pci_slot.cpp
@@ -14,6 +14,7 @@
#include "ess_maestro.h"
#include "geforce.h"
#include "mga2064w.h"
+#include "ncr53c825.h"
#include "opti82c861.h"
#include "oti_spitfire.h"
#include "pdc20262.h"
@@ -115,6 +116,7 @@ void pci_cards(device_slot_interface &device)
// 0x01 - mass storage controllers
device.option_add("aha2940au", AHA2940AU);
+ device.option_add("ncr53c825", NCR53C825_PCI);
device.option_add("pdc20262", PDC20262);
// 0x02 - network controllers
diff --git a/src/mame/misc/odyssey.cpp b/src/mame/misc/odyssey.cpp
index 9a924c2d70f..ceef1467c5e 100644
--- a/src/mame/misc/odyssey.cpp
+++ b/src/mame/misc/odyssey.cpp
@@ -10,6 +10,7 @@
TODO:
- bp f7ae6,1,{eip+=0xf;g} fails ISA state $0f;
+ - Hangs after playing with SCSI regs, needs dump to proceed;
- Accesses S3 video in New MMIO mode, core fumbles on video mode setup
(prepares linear for 32bpp, core sets SVGA 8bpp instead)
- Hangs after playing with LPT1 & IDE checks;
@@ -197,7 +198,7 @@ void odyssey_state::odyssey(machine_config &config)
//PCI_SLOT(config, "pci:3", pci_cards, 15, 0, 1, 2, 3, nullptr);
// pci:10.0 (J4C1) PCI expansion slot 4
- PCI_SLOT(config, "pci:4", pci_cards, 16, 0, 1, 2, 3, nullptr);
+ PCI_SLOT(config, "pci:4", pci_cards, 16, 0, 1, 2, 3, "ncr53c825");
ISA16_SLOT(config, "board4", 0, "pci:07.0:isabus", isa_internal_devices, "pc87306", true).set_option_machine_config("pc87306", national_superio_config);
ISA16_SLOT(config, "isa1", 0, "pci:07.0:isabus", pc_isa16_cards, nullptr, false);
@@ -269,9 +270,6 @@ ROM_START( odyssey )
ROM_REGION( 0x10000, "vbios", 0 ) // video card BIOS
ROM_LOAD( "videobios", 0x000000, 0x00d000, NO_DUMP )
- ROM_REGION( 0x10000, "scsibios", 0 ) // SCSI card BIOS
- ROM_LOAD( "scsibios", 0x000000, 0x00d000, NO_DUMP )
-
DISK_REGION( "scsi_hdd_image" ) // SCSI HDD
DISK_IMAGE( "odyssey", 0, NO_DUMP )