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Diffstat (limited to 'src/mame/machine/x68k_hdc.h')
-rw-r--r-- | src/mame/machine/x68k_hdc.h | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/src/mame/machine/x68k_hdc.h b/src/mame/machine/x68k_hdc.h deleted file mode 100644 index 728043447c3..00000000000 --- a/src/mame/machine/x68k_hdc.h +++ /dev/null @@ -1,136 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Barry Rodewald -/* - - X68000 Custom SASI HD controller - -*/ -#ifndef MAME_MACHINE_X68K_HDC_H -#define MAME_MACHINE_X68K_HDC_H - -#pragma once - - -class x68k_hdc_image_device : public device_t, - public device_image_interface -{ - enum class sasi_phase : u8 - { - BUSFREE = 0, - ARBITRATION, - SELECTION, - RESELECTION, - COMMAND, - DATA, - STATUS, - MESSAGE, - READ, - WRITE - }; - - // SASI commands, based on the SASI standard - enum sasi_cmd : u8 - { - // Class 0 (6-byte) commands - SASI_CMD_TEST_UNIT_READY = 0, - SASI_CMD_REZERO_UNIT, - SASI_CMD_RESERVED_02, - SASI_CMD_REQUEST_SENSE, - SASI_CMD_FORMAT_UNIT, - SASI_CMD_RESERVED_05, - SASI_CMD_FORMAT_UNIT_06, // the X68000 uses command 0x06 for Format Unit, despite the SASI specs saying 0x04 - SASI_CMD_RESERVED_07, - SASI_CMD_READ, - SASI_CMD_RESERVED_09, - SASI_CMD_WRITE, - SASI_CMD_SEEK, - SASI_CMD_RESERVED_0C, - SASI_CMD_RESERVED_0D, - SASI_CMD_RESERVED_0E, - SASI_CMD_WRITE_FILE_MARK, - SASI_CMD_INVALID_10, - SASI_CMD_INVALID_11, - SASI_CMD_RESERVE_UNIT, - SASI_CMD_RELEASE_UNIT, - SASI_CMD_INVALID_14, - SASI_CMD_INVALID_15, - SASI_CMD_READ_CAPACITY, - SASI_CMD_INVALID_17, - SASI_CMD_INVALID_18, - SASI_CMD_INVALID_19, - SASI_CMD_READ_DIAGNOSTIC, - SASI_CMD_WRITE_DIAGNOSTIC, - SASI_CMD_INVALID_1C, - SASI_CMD_INVALID_1D, - SASI_CMD_INVALID_1E, - SASI_CMD_INQUIRY, - // Class 1 commands (yes, just the one) - SASI_CMD_RESERVED_20, - SASI_CMD_RESERVED_21, - SASI_CMD_RESERVED_22, - SASI_CMD_SET_BLOCK_LIMITS = 0x28, - // Class 2 commands - SASI_CMD_EXTENDED_ADDRESS_READ = 0x48, - SASI_CMD_INVALID_49, - SASI_CMD_EXTENDED_ADDRESS_WRITE, - SASI_CMD_WRITE_AND_VERIFY = 0x54, - SASI_CMD_VERIFY, - SASI_CMD_INVALID_56, - SASI_CMD_SEARCH_DATA_HIGH, - SASI_CMD_SEARCH_DATA_EQUAL, - SASI_CMD_SEARCH_DATA_LOW, - // controller-specific commands - SASI_CMD_SPECIFY = 0xc2 - }; - - enum sasi_status : u8 - { - SASI_STATUS_MSG = 1 << 4, // MSG - SASI_STATUS_CD = 1 << 3, // C/D (Command/Data) - SASI_STATUS_IO = 1 << 2, // I/O - SASI_STATUS_BSY = 1 << 1, // BSY - SASI_STATUS_REQ = 1 << 0 // REQ - }; - -public: - // construction/destruction - x68k_hdc_image_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0); - - // image-level overrides - virtual iodevice_t image_type() const override { return IO_HARDDISK; } - - virtual bool is_readable() const override { return true; } - virtual bool is_writeable() const override { return true; } - virtual bool is_creatable() const override { return true; } - virtual bool must_be_loaded() const override { return false; } - virtual bool is_reset_on_load() const override { return false; } - virtual const char *file_extensions() const override { return "hdf"; } - virtual const char *custom_instance_name() const override { return "sasihd"; } - virtual const char *custom_brief_instance_name() const override { return "sasi"; } - virtual image_init_result call_create(int format_type, util::option_resolution *format_options) override; - - DECLARE_WRITE16_MEMBER( hdc_w ); - DECLARE_READ16_MEMBER( hdc_r ); -protected: - // device-level overrides - virtual void device_start() override; -private: - TIMER_CALLBACK_MEMBER(req_timer_callback); - - sasi_phase m_phase; - u8 m_status_port; // read at 0xe96003 - u8 m_status; // status phase output - u8 m_command[10]; - u8 m_sense[4]; - u16 m_command_byte_count; - u16 m_command_byte_total; - u8 m_current_command; - u16 m_transfer_byte_count; - u16 m_transfer_byte_total; - emu_timer *m_req_timer; -}; - -// device type definition -DECLARE_DEVICE_TYPE(X68KHDC, x68k_hdc_image_device) - -#endif // MAME_MACHINE_X68K_HDC_H |