142 lines
2.9 KiB
C
142 lines
2.9 KiB
C
/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Implementation of the Iomega ZIP drive with SCSI(-like)
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* commands, for both ATAPI and SCSI usage.
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*
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*
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*
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* Authors: Miran Grca, <mgrca8@gmail.com>
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*
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* Copyright 2018-2019 Miran Grca.
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*/
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#ifndef EMU_ZIP_H
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#define EMU_ZIP_H
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#define ZIP_NUM 4
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#define BUF_SIZE 32768
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#define ZIP_TIME 10.0
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#define ZIP_SECTORS (96 * 2048)
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#define ZIP_250_SECTORS (489532)
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#define ZIP_IMAGE_HISTORY 4
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enum {
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ZIP_BUS_DISABLED = 0,
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ZIP_BUS_ATAPI = 5,
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ZIP_BUS_SCSI = 6,
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ZIP_BUS_USB = 7
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};
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typedef struct zip_drive_t {
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uint8_t id;
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union {
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uint8_t res;
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uint8_t res0; /* Reserved for other ID's. */
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uint8_t res1;
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uint8_t ide_channel;
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uint8_t scsi_device_id;
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};
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uint8_t bus_type; /* 0 = ATAPI, 1 = SCSI */
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uint8_t bus_mode; /* Bit 0 = PIO suported;
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Bit 1 = DMA supportd. */
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uint8_t read_only; /* Struct variable reserved for
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media status. */
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uint8_t pad;
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uint8_t pad0;
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FILE *fp;
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void *priv;
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char image_path[1024];
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char prev_image_path[1024];
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char *image_history[ZIP_IMAGE_HISTORY];
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uint32_t is_250;
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uint32_t medium_size;
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uint32_t base;
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} zip_drive_t;
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typedef struct zip_t {
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mode_sense_pages_t ms_pages_saved;
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zip_drive_t *drv;
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uint8_t *buffer;
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uint8_t atapi_cdb[16];
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uint8_t current_cdb[16];
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uint8_t sense[256];
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uint8_t status;
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uint8_t phase;
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uint8_t error;
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uint8_t id;
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uint8_t features;
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uint8_t cur_lun;
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uint8_t pad0;
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uint8_t pad1;
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uint16_t request_length;
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uint16_t max_transfer_len;
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int requested_blocks;
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int packet_status;
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int total_length;
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int do_page_save;
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int unit_attention;
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int request_pos;
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int old_len;
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int pad3;
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uint32_t sector_pos;
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uint32_t sector_len;
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uint32_t packet_len;
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uint32_t pos;
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double callback;
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} zip_t;
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extern zip_t *zip[ZIP_NUM];
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extern zip_drive_t zip_drives[ZIP_NUM];
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extern uint8_t atapi_zip_drives[8];
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extern uint8_t scsi_zip_drives[16];
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#define zip_sense_error dev->sense[0]
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#define zip_sense_key dev->sense[2]
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#define zip_asc dev->sense[12]
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#define zip_ascq dev->sense[13]
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern void zip_disk_close(zip_t *dev);
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extern void zip_disk_reload(zip_t *dev);
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extern void zip_insert(zip_t *dev);
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extern void zip_global_init(void);
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extern void zip_hard_reset(void);
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extern void zip_reset(scsi_common_t *sc);
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extern int zip_load(zip_t *dev, char *fn);
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extern void zip_close(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /*EMU_ZIP_H*/
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