79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-23 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 Virtual CD-ROM drive definitions. */
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#ifndef CD_ROM_DRIVE_H
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#define CD_ROM_DRIVE_H
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#include <devices/storage/blockstoragedevice.h>
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#include <cinttypes>
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#include <functional>
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/* Original CD-ROM addressing mode expressed
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in minutes, seconds and frames */
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typedef struct {
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int min;
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int sec;
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int frm;
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} AddrMsf;
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/* Descriptor for CD-ROM tracks in TOC */
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typedef struct {
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uint8_t trk_num;
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uint8_t adr_ctrl;
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uint32_t start_lba;
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} TrackDescriptor;
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#define CDROM_MAX_TRACKS 100
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#define LEAD_OUT_TRK_NUM 0xAA
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class CdromDrive : public BlockStorageDevice {
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public:
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CdromDrive();
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virtual ~CdromDrive() = default;
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void set_error_callback(std::function<void(uint8_t, uint8_t)>&& err_cb) {
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this->set_error = std::move(err_cb);
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}
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bool medium_present() { return this->is_ready; }
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void insert_image(std::string filename);
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virtual uint32_t inquiry(uint8_t *cmd_ptr, uint8_t *data_ptr);
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virtual uint32_t mode_sense_ex(uint8_t *cmd_ptr, uint8_t *data_ptr);
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virtual uint32_t request_sense(uint8_t *data_ptr, uint8_t sense_key, uint8_t asc,
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uint8_t ascq);
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virtual uint32_t report_capacity(uint8_t *data_ptr);
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virtual uint32_t read_toc(uint8_t *cmd_ptr, uint8_t *data_ptr);
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protected:
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std::function<void(uint8_t, uint8_t)> set_error;
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AddrMsf lba_to_msf(const int lba);
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TrackDescriptor tracks[CDROM_MAX_TRACKS];
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int num_tracks;
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};
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#endif // CD_ROM_DRIVE_H
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