dingusppc/devices/storage/cdromdrive.h

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2023-06-18 21:28:41 +00:00
/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-23 divingkatae and maximum
(theweirdo) spatium
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
/** @file Virtual CD-ROM drive definitions. */
#ifndef CD_ROM_DRIVE_H
#define CD_ROM_DRIVE_H
#include <devices/storage/blockstoragedevice.h>
#include <cinttypes>
#include <functional>
/* Original CD-ROM addressing mode expressed
in minutes, seconds and frames */
typedef struct {
int min;
int sec;
int frm;
} AddrMsf;
/* Descriptor for CD-ROM tracks in TOC */
typedef struct {
uint8_t trk_num;
uint8_t adr_ctrl;
uint32_t start_lba;
} TrackDescriptor;
#define CDROM_MAX_TRACKS 100
#define LEAD_OUT_TRK_NUM 0xAA
class CdromDrive : public BlockStorageDevice {
public:
CdromDrive();
virtual ~CdromDrive() = default;
void set_error_callback(std::function<void(uint8_t, uint8_t)>&& err_cb) {
this->set_error = std::move(err_cb);
}
bool medium_present() { return this->is_ready; }
void insert_image(std::string filename);
uint32_t inquiry(uint8_t *cmd_ptr, uint8_t *data_ptr);
uint32_t mode_sense_ex(uint8_t *cmd_ptr, uint8_t *data_ptr);
uint32_t request_sense(uint8_t *data_ptr, uint8_t sense_key, uint8_t asc,
uint8_t ascq);
uint32_t report_capacity(uint8_t *data_ptr);
uint32_t read_toc(uint8_t *cmd_ptr, uint8_t *data_ptr);
private:
AddrMsf lba_to_msf(const int lba);
protected:
std::function<void(uint8_t, uint8_t)> set_error;
TrackDescriptor tracks[CDROM_MAX_TRACKS];
int num_tracks;
};
#endif // CD_ROM_DRIVE_H