mirror of
https://github.com/dingusdev/dingusppc.git
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d4c9db7fcf
Allows different implementations for different platforms (the JS build relies on browser APIs to stream disk images over the network). Setting aside the JS build, this also reduces some code duplication.
82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-22 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** @file SCSI hard drive definitions. */
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#ifndef SCSI_HD_H
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#define SCSI_HD_H
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#include <devices/common/scsi/scsi.h>
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#include <utils/imgfile.h>
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#include <cinttypes>
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#include <memory>
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#include <string>
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class ScsiHardDisk : public ScsiDevice {
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public:
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ScsiHardDisk(int my_id);
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~ScsiHardDisk() = default;
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static std::unique_ptr<HWComponent> create() {
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return std::unique_ptr<ScsiHardDisk>(new ScsiHardDisk(0));
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}
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void insert_image(std::string filename);
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void process_command();
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bool prepare_data();
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protected:
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int test_unit_ready();
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int req_sense(uint16_t alloc_len);
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int send_diagnostic();
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int mode_select_6(uint8_t param_len);
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void mode_sense_6();
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void format();
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void inquiry();
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void read_capacity_10();
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void read(uint32_t lba, uint16_t transfer_len, uint8_t cmd_len);
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void write(uint32_t lba, uint16_t transfer_len, uint8_t cmd_len);
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void seek(uint32_t lba);
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void rewind();
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private:
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ImgFile hdd_img;
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uint64_t img_size;
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int total_blocks;
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uint64_t file_offset = 0;
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int bytes_out = 0;
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char img_buffer[1 << 21]; // TODO: add proper buffer management!
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uint32_t cur_buf_cnt = 0;
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uint8_t error = ScsiError::NO_ERROR;
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uint8_t msg_code = 0;
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//inquiry info
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char vendor_info[8] = {'D', 'i', 'n', 'g', 'u', 's', 'D', '\0'};
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char prod_info[16] = {'E', 'm', 'u', 'l', 'a', 't', 'e', 'd', ' ', 'D', 'i', 's', 'k', '\0'};
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char rev_info[4] = {'d', 'i', '0', '1'};
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};
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#endif // SCSI_HD_H
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