os-k/kaleid/drivers/ata.c

//----------------------------------------------------------------------------//
//                                OS on Kaleid                                //
//                                                                            //
//  Desc:     Basic Read Only ATA Long mode Driver                            //
//                                                                            //
//                                                                            //
//  Copyright © 2018-2021 The OS/K Team                                       //
//                                                                            //
//  This file is part of OS/K.                                                //
//                                                                            //
//  OS/K 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         //
//  any later version.                                                        //
//                                                                            //
//  OS/K 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 OS/K.  If not, see <https://www.gnu.org/licenses/>.            //
//----------------------------------------------------------------------------//

#include <drivers/ata.h>
#include <io/vga.h>
#include <io/pci.h>

void IoDumpFirstSector(void)
{
    char sector[513] = {0};
    KernLog("Sector addr : %p\n", &sector[0]);

    IoReadATA(sector, 1, 1);

    for (int i = 0; i < 513; i++) {
        if (isascii(sector[i]))
            KernLog("%c", sector[i]);
        else
            KernLog(" ");
    }

    KernLog("\n\n");
}

void IoDetectATA(void)
{
    PciDev_t *ataDevice = IoPciGetDeviceByClass(MASS_STORAGE_CLASS,
                                                SERIAL_ATA_SUBCLASS);

    if(!ataDevice) {
        return;
    }

    DebugLog("AHCI controller found at PCI config addr = %p\n",
                 ataDevice->configAddr);

    struct HostToDeviceFIS fis;
    memset(&fis, 0, sizeof(struct HostToDeviceFIS));
    fis.type = REG_H2D;
    fis.command = IDENTIFY;
    fis.device = 0; // Master
    fis.c = 1;      // This is a command


}