ahci.hpp

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#ifndef __USB_AHCI__AHCI_HPP__
#define __USB_AHCI__AHCI_HPP__
 
#include "ahci/ahci_reg.hpp"
#include "ioforge/ioforge_pci.h"
#include "ioforge/ioforge_pci.hpp"
#include "type.h"
 
struct ahci_internal_vaddr {
    uintptr_t clb;
    uintptr_t fb;
    uintptr_t cmd[32];
};
 
class AHCIModule : public IOforgePCI {
      public:
    AHCIModule();
    void load() override;
    void unload() override;
    static AHCIModule* getInstance();
    int submit_impl(struct ioforge_block_device* dev,
            struct ioforge_block_request* req);
 
      protected:
    void port_power_off(ahci_port_t* port);
    void port_power_on(ahci_port_t* port);
    void port_reset(ahci_port_t* port);
    void setup();
    void probe();
    void
    port_configure(ahci_port_t* port, struct ahci_internal_vaddr* vaddr);
 
    bool ata_rw(ahci_port_t* p, struct ahci_internal_vaddr* vaddr,
            struct ioforge_block_request* req);
    int atapi_packet(ahci_port_t* p, struct ahci_internal_vaddr* vaddr,
             struct ioforge_block_request* req);
    int ata_identify(ahci_port_t* p, struct ahci_internal_vaddr* vaddr,
             struct ioforge_block_request* req, bool is_atapi);
 
    int ata_flush(ahci_port_t* p, struct ahci_internal_vaddr* vaddr,
              struct ioforge_block_request* req);
 
    boolean_t issue_and_wait(ahci_port_t* p, int slot, uint32_t timeout);
 
      private:
    struct ioforge_pci_device* dev_;
    ahci_op_t* op;
    void build_prdt(ahci_cmd_t* cmd, ahci_cmd_tbl_t* cmdtbl,
                void* buffer, size_t size);
};
 
// prototype
extern "C" int
submit(struct ioforge_block_device* dev, struct ioforge_block_request* req);
 
#endif //__USB_AHCI__AHCI_HPP__