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-rw-r--r--src/devices/machine/zfmicro_usb.cpp100
1 files changed, 100 insertions, 0 deletions
diff --git a/src/devices/machine/zfmicro_usb.cpp b/src/devices/machine/zfmicro_usb.cpp
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+++ b/src/devices/machine/zfmicro_usb.cpp
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+// license: BSD-3-Clause
+// copyright-holders: Angelo Salese
+/**************************************************************************************************
+
+ ZFMicro USB Host controller
+
+ TODO:
+ - Stub interface, to be merged with pci-usb;
+ - PCI values omitted from docs, assumes same as OpenHCI;
+
+**************************************************************************************************/
+
+#include "emu.h"
+#include "zfmicro_usb.h"
+
+#define VERBOSE (LOG_GENERAL)
+//#define LOG_OUTPUT_FUNC osd_printf_warning
+
+#include "logmacro.h"
+
+DEFINE_DEVICE_TYPE(ZFMICRO_USB, zfmicro_usb_device, "zfmicro_usb", "ZFMicro PCIUSB Host Controller")
+
+zfmicro_usb_device::zfmicro_usb_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+ : pci_device(mconfig, ZFMICRO_USB, tag, owner, clock)
+{
+ // Compaq vendor
+ set_ids(0x0e11a0f8, 0x00, 0x0c0310, 0x00);
+ // TODO: should really read from a std::list interface
+ m_downstream_ports = 2;
+}
+
+void zfmicro_usb_device::config_map(address_map &map)
+{
+ pci_device::config_map(map);
+// map(0x40, 0x43) ASIC Test Mode Enable
+// map(0x44, 0x44) ASIC Operational Mode Enable
+// ---- ---x Data Buffer Region 16
+// ---- ---1 16 bytes data buffer
+// ---- ---0 32 bytes
+}
+
+void zfmicro_usb_device::map(address_map &map)
+{
+ // HcRevision: operational mode
+ // 1 ---- ---- Legacy PS/2 present
+ // - 0001 0000 OpenHCI v1.0
+ map(0x000, 0x003).lr32(NAME([]() { return 0x00000110; }));
+ // ...
+ // HcFmInterval (Windows OSes fails if this isn't r/w)
+ map(0x034, 0x037).lrw32(
+ NAME([this]() { return m_HcFmInterval; } ),
+ NAME([this](offs_t offset, u32 data, u32 mem_mask) {
+ COMBINE_DATA(&m_HcFmInterval);
+ LOG("Write HcFmInterval %08x & %08x\n", data, mem_mask);
+ })
+ );
+ // ...
+ // HcRhDescriptorA
+ // 0000 0001 ---- ---- ---- ---- ---- ---- POTPGT (unknown for this, assume 2 ms)
+ // ---- ---- xxxx xxxx xxxx x-xx ---- ---- (writeable bits by host controller driver)
+ // ---- ---- ---- ---- ---- -0-- ---- ---- DT DeviceType (0) not a compound device
+ // ---- ---- ---- ---- ---- ---- xxxx xxxx NDP NumberDownstreamPorts (15 max)
+ map(0x048, 0x04b).lr32(NAME([this]() { return 0x01000000 | m_downstream_ports; }));
+ // ...
+
+ // legacy support mode (8-bit each)
+// map(0x100, 0x100) HceControl, bit 0 enables emulation mode
+// map(0x104, 0x104) HceInput
+// map(0x108, 0x108) HceOutput
+// map(0x10c, 0x10f) HceStatus
+}
+
+void zfmicro_usb_device::map_extra(uint64_t memory_window_start, uint64_t memory_window_end, uint64_t memory_offset, address_space *memory_space,
+ uint64_t io_window_start, uint64_t io_window_end, uint64_t io_offset, address_space *io_space)
+{
+ // TODO: overrides I/O ports $0060-$0064 (emulation mode)
+}
+
+void zfmicro_usb_device::device_start()
+{
+ pci_device::device_start();
+
+ add_map(4096, M_MEM, FUNC(zfmicro_usb_device::map));
+
+ // INTA#
+ intr_pin = 1;
+}
+
+
+void zfmicro_usb_device::device_reset()
+{
+ pci_device::device_reset();
+
+ command = 0x0000;
+ // DEVSEL# medium timing
+ // Fast Back-to-Back Capable
+ status = 0x0280;
+ // unverified default, assume same as OpenHCI specs
+ m_HcFmInterval = 0x2edf;
+}