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Diffstat (limited to 'src/mame/machine/elan_eu3a05gpio.h')
-rw-r--r--src/mame/machine/elan_eu3a05gpio.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/mame/machine/elan_eu3a05gpio.h b/src/mame/machine/elan_eu3a05gpio.h
new file mode 100644
index 00000000000..a46a654d09d
--- /dev/null
+++ b/src/mame/machine/elan_eu3a05gpio.h
@@ -0,0 +1,43 @@
+// license:BSD-3-Clause
+// copyright-holders:David Haywood
+
+#ifndef MAME_MACHINE_RAD_EU3A05GPIO_H
+#define MAME_MACHINE_RAD_EU3A05GPIO_H
+
+
+class radica6502_gpio_device : public device_t
+{
+public:
+ radica6502_gpio_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ auto read_0_callback() { return m_space_read0_cb.bind(); }
+ auto read_1_callback() { return m_space_read1_cb.bind(); }
+ auto read_2_callback() { return m_space_read2_cb.bind(); }
+
+ DECLARE_READ8_MEMBER(gpio_r);
+ DECLARE_WRITE8_MEMBER(gpio_w);
+
+ DECLARE_WRITE8_MEMBER(gpio_unk_w);
+
+protected:
+ // device-level overrides
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+private:
+ devcb_read8 m_space_read0_cb;
+ devcb_read8 m_space_read1_cb;
+ devcb_read8 m_space_read2_cb;
+
+ uint8_t read_port_data(int which);
+ uint8_t read_direction(int which);
+ void write_port_data(int which, uint8_t data);
+ void write_direction(int which, uint8_t data);
+
+ uint8_t m_ddr[3];
+ uint8_t m_unk[3];
+};
+
+DECLARE_DEVICE_TYPE(RADICA6502_GPIO, radica6502_gpio_device)
+
+#endif // MAME_MACHINE_RAD_EU3A05GPIO_H