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-rw-r--r--src/devices/machine/ncr539x.h83
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diff --git a/src/devices/machine/ncr539x.h b/src/devices/machine/ncr539x.h
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--- a/src/devices/machine/ncr539x.h
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-// license:BSD-3-Clause
-// copyright-holders:R. Belmont
-/*
- * ncr5394/5396.h SCSI controller
- *
- */
-
-#ifndef MAME_MACHINE_NCR539X_H
-#define MAME_MACHINE_NCR539X_H
-
-#pragma once
-
-#include "legscsi.h"
-
-// device stuff
-
-
-class ncr539x_device : public legacy_scsi_host_adapter
-{
-public:
- // construction/destruction
- ncr539x_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
-
- auto irq_callback() { return m_out_irq_cb.bind(); }
- auto drq_callback() { return m_out_drq_cb.bind(); }
-
- // our API
- uint8_t read(offs_t offset);
- void write(offs_t offset, uint8_t data);
-
- void dma_read_data(int bytes, uint8_t *pData);
- void dma_write_data(int bytes, uint8_t *pData);
-
-protected:
- // device-level overrides
- virtual void device_start() override;
- virtual void device_reset() override;
- virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
-
-private:
- void fifo_write(uint8_t data);
- void check_fifo_executable();
- void exec_fifo();
- void update_fifo_internal_state(int bytes);
-
- uint32_t m_xfer_count;
- uint32_t m_dma_size;
- uint8_t m_command;
- uint8_t m_last_id;
- uint8_t m_timeout;
- uint8_t m_sync_xfer_period;
- uint8_t m_sync_offset;
- uint8_t m_control1, m_control2, m_control3, m_control4;
- uint8_t m_clock_factor;
- uint8_t m_forced_test;
- uint8_t m_data_alignment;
-
- bool m_selected;
- bool m_chipid_available, m_chipid_lock;
-
- static const int m_fifo_size = 16;
- uint8_t m_fifo_ptr, m_fifo_read_ptr, m_fifo[m_fifo_size];
-
- //int m_xfer_remaining; // amount in the FIFO when we're in data in phase
-
- // read-only registers
- uint8_t m_status, m_irq_status, m_internal_state, m_fifo_internal_state;
-
- static const int m_buffer_size = 2048;
-
- uint8_t m_buffer[m_buffer_size];
- int m_buffer_offset, m_buffer_remaining, m_total_data;
-
- emu_timer *m_operation_timer;
-
- devcb_write_line m_out_irq_cb; /* IRQ line */
- devcb_write_line m_out_drq_cb; /* DRQ line */
-};
-
-// device type definition
-DECLARE_DEVICE_TYPE(NCR539X, ncr539x_device)
-
-#endif // MAME_MACHINE_NCR539X_H