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#ifndef _SATA_H_
#define _SATA_H_
#include <stdint.h>
#include <stdbool.h>
struct ahci_port {
uint32_t clb; // 0x00, command list base address, 1K-byte aligned
uint32_t clbu; // 0x04, command list base address upper 32 bits
uint32_t fb; // 0x08, FIS base address, 256-byte aligned
uint32_t fbu; // 0x0C, FIS base address upper 32 bits
uint32_t is; // 0x10, interrupt status
uint32_t ie; // 0x14, interrupt enable
uint32_t cmd; // 0x18, command and status
uint32_t rsv0; // 0x1C, Reserved
uint32_t tfd; // 0x20, task file data
uint32_t sig; // 0x24, signature
uint32_t ssts; // 0x28, SATA status (SCR0:SStatus)
uint32_t sctl; // 0x2C, SATA control (SCR2:SControl)
uint32_t serr; // 0x30, SATA error (SCR1:SError)
uint32_t sact; // 0x34, SATA active (SCR3:SActive)
uint32_t ci; // 0x38, command issue
uint32_t sntf; // 0x3C, SATA notification (SCR4:SNotification)
uint32_t fbs; // 0x40, FIS-based switch control
uint32_t rsv1[11]; // 0x44 ~ 0x6F, Reserved
uint32_t vendor[4]; // 0x70 ~ 0x7F, vendor specific
};
struct hba_mem {
// 0x00 - 0x2B, Generic Host Control
uint32_t cap; // 0x00, Host capability
uint32_t ghc; // 0x04, Global host control
uint32_t is; // 0x08, Interrupt status
uint32_t pi; // 0x0C, Port implemented
uint32_t vs; // 0x10, Version
uint32_t ccc_ctl; // 0x14, Command completion coalescing control
uint32_t ccc_pts; // 0x18, Command completion coalescing ports
uint32_t em_loc; // 0x1C, Enclosure management location
uint32_t em_ctl; // 0x20, Enclosure management control
uint32_t cap2; // 0x24, Host capabilities extended
uint32_t bohc; // 0x28, BIOS/OS handoff control and status
// 0x2C - 0x9F, Reserved
uint8_t rsv[0xA0-0x2C];
// 0xA0 - 0xFF, Vendor specific registers
uint8_t vendor[0x100-0xA0];
// 0x100 - 0x10FF, Port control registers
struct ahci_port ports[]; // 1 ~ 32
};
struct disk {
uint32_t id;
uint64_t block_count;
struct ahci_port *port;
};
void probe_port(struct hba_mem *abar);
bool read(volatile struct ahci_port *port, uint64_t offset, uint32_t count, uint16_t buf[256 * count]);
struct disk *get_disk(int id);
#endif
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