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Diffstat (limited to 'src/devices/machine/sis950_smbus.h')
-rw-r--r--src/devices/machine/sis950_smbus.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/src/devices/machine/sis950_smbus.h b/src/devices/machine/sis950_smbus.h
new file mode 100644
index 00000000000..a474fe10914
--- /dev/null
+++ b/src/devices/machine/sis950_smbus.h
@@ -0,0 +1,32 @@
+// license:BSD-3-Clause
+// copyright-holders:Angelo Salese
+
+#ifndef MAME_MACHINE_SIS950_SMBUS_H
+#define MAME_MACHINE_SIS950_SMBUS_H
+
+#include "emu.h"
+
+class sis950_smbus_device : public device_t {
+public:
+
+ sis950_smbus_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ void map(address_map &map);
+
+protected:
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+private:
+ u8 smb_sts_r();
+ void smb_sts_w(u8 data);
+ u8 smbhost_cnt_r();
+ void smbhost_cnt_w(u8 data);
+
+ u8 m_status = 0;
+ u8 m_cmd = 0;
+};
+
+DECLARE_DEVICE_TYPE(SIS950_SMBUS, sis950_smbus_device)
+
+#endif // MAME_MACHINE_PCI_SMBUS_H