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#include <devmap.h>
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#include <devmap.h>
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#include <sys/types.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <errno.h>
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#include <bool.h>
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#include <bool.h>
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#define NAME "ata_bd"
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#include "ata_bd.h"
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enum {
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    CTL_READ_START  = 0,
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    CTL_WRITE_START = 1,
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};
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enum {
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    STATUS_FAILURE  = 0
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};
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enum {
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    MAX_DISKS   = 2
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};
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typedef union {
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    /* Read */
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    struct {
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        uint8_t data_port;
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        uint8_t error;
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        uint8_t sector_count;
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        uint8_t sector_number;
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        uint8_t cylinder_low;
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        uint8_t cylinder_high;
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        uint8_t drive_head;
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        uint8_t status;
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    };
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    /* Write */
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    struct {
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        uint8_t pad0[7];
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        uint8_t command;
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    };
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} ata_cmd_t;
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typedef union {
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    /* Read */
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    struct {
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        uint8_t pad0[6];
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        uint8_t alt_status;
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        uint8_t drive_address;
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    };
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    /* Write */
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    struct {
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        uint8_t pad1[6];
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#define NAME "ata_bd"
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        uint8_t device_control;
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        uint8_t pad2;
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    };
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} ata_ctl_t;
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enum devctl_bits {
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    DCR_SRST    = 0x04, /**< Software Reset */
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    DCR_nIEN    = 0x02  /**< Interrupt Enable (negated) */
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};
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enum status_bits {
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    SR_BSY      = 0x80, /**< Busy */
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    SR_DRDY     = 0x40, /**< Drive Ready */
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    SR_DWF      = 0x20, /**< Drive Write Fault */
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    SR_DSC      = 0x10, /**< Drive Seek Complete */
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    SR_DRQ      = 0x08, /**< Data Request */
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    SR_CORR     = 0x04, /**< Corrected Data */
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    SR_IDX      = 0x02, /**< Index */
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    SR_ERR      = 0x01  /**< Error */
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};
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enum drive_head_bits {
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    DHR_DRV     = 0x10
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};
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enum error_bits {
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    ER_BBK      = 0x80, /**< Bad Block Detected */
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    ER_UNC      = 0x40, /**< Uncorrectable Data Error */
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    ER_MC       = 0x20, /**< Media Changed */
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    ER_IDNF     = 0x10, /**< ID Not Found */
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    ER_MCR      = 0x08, /**< Media Change Request */
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    ER_ABRT     = 0x04, /**< Aborted Command */
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    ER_TK0NF    = 0x02, /**< Track 0 Not Found */
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    ER_AMNF     = 0x01  /**< Address Mark Not Found */
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};
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typedef struct {
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    bool present;
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    unsigned heads;
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    unsigned cylinders;
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    unsigned sectors;
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    uint64_t blocks;
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} disk_t;
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static const size_t block_size = 512;
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static const size_t block_size = 512;
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static size_t comm_size;
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static size_t comm_size;
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static uintptr_t cmd_physical = 0x1f0;
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static uintptr_t cmd_physical = 0x1f0;