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-rw-r--r--trunk/src/emu/sound/mas3507d.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/trunk/src/emu/sound/mas3507d.h b/trunk/src/emu/sound/mas3507d.h
new file mode 100644
index 00000000000..4f2c12eadb0
--- /dev/null
+++ b/trunk/src/emu/sound/mas3507d.h
@@ -0,0 +1,66 @@
+#pragma once
+
+#ifndef __MAS3507D_H__
+#define __MAS3507D_H__
+
+
+//**************************************************************************
+// INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_MAS3507D_ADD(_tag) \
+ MCFG_DEVICE_ADD(_tag, MAS3507D, 0)
+
+#define MCFG_MAS3507D_REPLACE(_tag) \
+ MCFG_DEVICE_REPLACE(_tag, MAS3507D, 0)
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+class mas3507d_device : public device_t, public device_sound_interface
+{
+public:
+ // construction/destruction
+ mas3507d_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ int i2c_scl_r();
+ int i2c_sda_r();
+ void i2c_scl_w(bool line);
+ void i2c_sda_w(bool line);
+
+protected:
+ virtual void device_start();
+ virtual void device_reset();
+ virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
+
+private:
+ enum { IDLE, STARTED, NAK, ACK, ACK2 } i2c_bus_state;
+ enum { UNKNOWN, VALIDATED, WRONG } i2c_bus_address;
+
+ bool i2c_scli, i2c_sclo, i2c_sdai, i2c_sdao;
+ int i2c_bus_curbit;
+ UINT8 i2c_bus_curval;
+
+ void i2c_nak();
+ bool i2c_device_got_address(UINT8 address);
+ void i2c_device_got_byte(UINT8 byte);
+ void i2c_device_got_stop();
+
+
+ enum { UNDEFINED, CONTROL, DATA, BAD } i2c_subdest;
+ enum { CMD_BAD, CMD_RUN, CMD_READ_CTRL, CMD_WRITE_REG, CMD_WRITE_MEM, CMD_READ_REG, CMD_READ_MEM } i2c_command;
+ int i2c_bytecount;
+ UINT32 i2c_io_bank, i2c_io_adr, i2c_io_count, i2c_io_val;
+
+
+ void mem_write(int bank, UINT32 adr, UINT32 val);
+ void run_program(UINT32 adr);
+ void reg_write(UINT32 adr, UINT32 val);
+};
+
+
+// device type definition
+extern const device_type MAS3507D;
+
+#endif /* __MAS3507D_H__ */