Subversion Repositories freemyipod

//

//

//    Copyright 2010 TheSeven

//

//

//    This file is part of emCORE.

//

//    emCORE 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 2 of the

//    License, or (at your option) any later version.

//

//    emCORE 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 emCORE.  If not, see <http://www.gnu.org/licenses/>.

//

//

#include "global.h"

#include "usb/usbtarget.h"

#include "usb/usb.h"

#include "storage_ata-target.h"

#include "thread.h"

int usb_target_handle_request(uint32_t* buf, int bufsize, void** addr)

{

    int len = 0;

    switch (buf[0])

    {

        case 0xffff0001:  // GET DISK INFO

            buf[0] = 1;

            buf[1] = (uint32_t)ata_identify_data;

            buf[2] = ata_total_sectors;

            buf[3] = ata_total_sectors >> 32;

#ifdef ATA_HAVE_BBT

            buf[4] = ata_virtual_sectors;

            buf[5] = ata_virtual_sectors >> 32;

            buf[6] = (uint32_t)ata_bbt;

            buf[7] = 0;

#else

            buf[4] = ata_total_sectors;

            buf[5] = ata_total_sectors >> 32;

            buf[6] = 0;

            buf[7] = 0;

#endif

            len = 16;

            break;

        case 0xffff0002:  // LOWLEVEL DISK ACCESS

            buf[0] = 1;

            mutex_lock(&ata_mutex, TIMEOUT_BLOCK);

#ifdef ATA_HAVE_BBT

            buf[1] = (uint32_t)ata_rw_sectors_internal((((uint64_t)(buf[3])) << 32) | buf[2],

                                                       buf[4], (void*)(buf[5]), (bool)(buf[1]));

#else

            buf[1] = (uint32_t)ata_rw_sectors((((uint64_t)(buf[3])) << 32) | buf[2],

                                              buf[4], (void*)(buf[5]), (bool)(buf[1]));

#endif

            mutex_unlock(&ata_mutex);

            break;

        case 0xffff0003:  // ATA_BBT_RELOAD

            ata_bbt_reload();

            buf[0] = 1;

            break;

        case 0xffff0004:  // ATA_BBT_DISABLE

            ata_bbt_disable();

            buf[0] = 1;

            break;

        default:

            buf[0] = 2;

            break;

    }

    return len;

}