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/*
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* QEMU IDE disk and CD-ROM Emulator
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <stdarg.h> |
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#include <string.h> |
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#include <getopt.h> |
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#include <inttypes.h> |
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#include <unistd.h> |
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#include <sys/mman.h> |
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#include <fcntl.h> |
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#include <signal.h> |
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#include <time.h> |
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#include <sys/time.h> |
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#include <malloc.h> |
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#include <termios.h> |
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#include <sys/poll.h> |
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#include <errno.h> |
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#include <sys/wait.h> |
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#include <netinet/in.h> |
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#define NO_THUNK_TYPE_SIZE
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#include "thunk.h" |
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#include "cpu.h" |
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#include "exec-all.h" |
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#include "vl.h" |
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/* debug IDE devices */
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//#define DEBUG_IDE
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//#define DEBUG_IDE_ATAPI
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/* Bits of HD_STATUS */
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#define ERR_STAT 0x01 |
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#define INDEX_STAT 0x02 |
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#define ECC_STAT 0x04 /* Corrected error */ |
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#define DRQ_STAT 0x08 |
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#define SEEK_STAT 0x10 |
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#define SRV_STAT 0x10 |
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#define WRERR_STAT 0x20 |
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#define READY_STAT 0x40 |
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#define BUSY_STAT 0x80 |
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/* Bits for HD_ERROR */
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#define MARK_ERR 0x01 /* Bad address mark */ |
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#define TRK0_ERR 0x02 /* couldn't find track 0 */ |
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#define ABRT_ERR 0x04 /* Command aborted */ |
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#define MCR_ERR 0x08 /* media change request */ |
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#define ID_ERR 0x10 /* ID field not found */ |
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#define MC_ERR 0x20 /* media changed */ |
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#define ECC_ERR 0x40 /* Uncorrectable ECC error */ |
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#define BBD_ERR 0x80 /* pre-EIDE meaning: block marked bad */ |
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#define ICRC_ERR 0x80 /* new meaning: CRC error during transfer */ |
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/* Bits of HD_NSECTOR */
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#define CD 0x01 |
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#define IO 0x02 |
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#define REL 0x04 |
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#define TAG_MASK 0xf8 |
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#define IDE_CMD_RESET 0x04 |
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#define IDE_CMD_DISABLE_IRQ 0x02 |
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/* ATA/ATAPI Commands pre T13 Spec */
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#define WIN_NOP 0x00 |
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/*
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* 0x01->0x02 Reserved
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*/
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#define CFA_REQ_EXT_ERROR_CODE 0x03 /* CFA Request Extended Error Code */ |
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/*
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* 0x04->0x07 Reserved
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*/
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#define WIN_SRST 0x08 /* ATAPI soft reset command */ |
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#define WIN_DEVICE_RESET 0x08 |
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/*
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* 0x09->0x0F Reserved
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*/
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#define WIN_RECAL 0x10 |
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#define WIN_RESTORE WIN_RECAL
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/*
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* 0x10->0x1F Reserved
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*/
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#define WIN_READ 0x20 /* 28-Bit */ |
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#define WIN_READ_ONCE 0x21 /* 28-Bit without retries */ |
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#define WIN_READ_LONG 0x22 /* 28-Bit */ |
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#define WIN_READ_LONG_ONCE 0x23 /* 28-Bit without retries */ |
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#define WIN_READ_EXT 0x24 /* 48-Bit */ |
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#define WIN_READDMA_EXT 0x25 /* 48-Bit */ |
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#define WIN_READDMA_QUEUED_EXT 0x26 /* 48-Bit */ |
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#define WIN_READ_NATIVE_MAX_EXT 0x27 /* 48-Bit */ |
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/*
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* 0x28
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*/
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#define WIN_MULTREAD_EXT 0x29 /* 48-Bit */ |
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/*
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* 0x2A->0x2F Reserved
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*/
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#define WIN_WRITE 0x30 /* 28-Bit */ |
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#define WIN_WRITE_ONCE 0x31 /* 28-Bit without retries */ |
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#define WIN_WRITE_LONG 0x32 /* 28-Bit */ |
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#define WIN_WRITE_LONG_ONCE 0x33 /* 28-Bit without retries */ |
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#define WIN_WRITE_EXT 0x34 /* 48-Bit */ |
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#define WIN_WRITEDMA_EXT 0x35 /* 48-Bit */ |
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#define WIN_WRITEDMA_QUEUED_EXT 0x36 /* 48-Bit */ |
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#define WIN_SET_MAX_EXT 0x37 /* 48-Bit */ |
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#define CFA_WRITE_SECT_WO_ERASE 0x38 /* CFA Write Sectors without erase */ |
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#define WIN_MULTWRITE_EXT 0x39 /* 48-Bit */ |
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/*
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* 0x3A->0x3B Reserved
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*/
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#define WIN_WRITE_VERIFY 0x3C /* 28-Bit */ |
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/*
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* 0x3D->0x3F Reserved
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*/
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#define WIN_VERIFY 0x40 /* 28-Bit - Read Verify Sectors */ |
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#define WIN_VERIFY_ONCE 0x41 /* 28-Bit - without retries */ |
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#define WIN_VERIFY_EXT 0x42 /* 48-Bit */ |
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/*
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* 0x43->0x4F Reserved
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*/
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#define WIN_FORMAT 0x50 |
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/*
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* 0x51->0x5F Reserved
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*/
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#define WIN_INIT 0x60 |
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/*
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* 0x61->0x5F Reserved
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*/
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#define WIN_SEEK 0x70 /* 0x70-0x7F Reserved */ |
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#define CFA_TRANSLATE_SECTOR 0x87 /* CFA Translate Sector */ |
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#define WIN_DIAGNOSE 0x90 |
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#define WIN_SPECIFY 0x91 /* set drive geometry translation */ |
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#define WIN_DOWNLOAD_MICROCODE 0x92 |
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#define WIN_STANDBYNOW2 0x94 |
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#define WIN_STANDBY2 0x96 |
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#define WIN_SETIDLE2 0x97 |
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#define WIN_CHECKPOWERMODE2 0x98 |
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#define WIN_SLEEPNOW2 0x99 |
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/*
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* 0x9A VENDOR
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*/
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#define WIN_PACKETCMD 0xA0 /* Send a packet command. */ |
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#define WIN_PIDENTIFY 0xA1 /* identify ATAPI device */ |
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#define WIN_QUEUED_SERVICE 0xA2 |
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#define WIN_SMART 0xB0 /* self-monitoring and reporting */ |
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#define CFA_ERASE_SECTORS 0xC0 |
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#define WIN_MULTREAD 0xC4 /* read sectors using multiple mode*/ |
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#define WIN_MULTWRITE 0xC5 /* write sectors using multiple mode */ |
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#define WIN_SETMULT 0xC6 /* enable/disable multiple mode */ |
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#define WIN_READDMA_QUEUED 0xC7 /* read sectors using Queued DMA transfers */ |
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#define WIN_READDMA 0xC8 /* read sectors using DMA transfers */ |
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#define WIN_READDMA_ONCE 0xC9 /* 28-Bit - without retries */ |
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#define WIN_WRITEDMA 0xCA /* write sectors using DMA transfers */ |
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#define WIN_WRITEDMA_ONCE 0xCB /* 28-Bit - without retries */ |
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#define WIN_WRITEDMA_QUEUED 0xCC /* write sectors using Queued DMA transfers */ |
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#define CFA_WRITE_MULTI_WO_ERASE 0xCD /* CFA Write multiple without erase */ |
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#define WIN_GETMEDIASTATUS 0xDA |
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#define WIN_ACKMEDIACHANGE 0xDB /* ATA-1, ATA-2 vendor */ |
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#define WIN_POSTBOOT 0xDC |
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#define WIN_PREBOOT 0xDD |
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#define WIN_DOORLOCK 0xDE /* lock door on removable drives */ |
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#define WIN_DOORUNLOCK 0xDF /* unlock door on removable drives */ |
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#define WIN_STANDBYNOW1 0xE0 |
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#define WIN_IDLEIMMEDIATE 0xE1 /* force drive to become "ready" */ |
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#define WIN_STANDBY 0xE2 /* Set device in Standby Mode */ |
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#define WIN_SETIDLE1 0xE3 |
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#define WIN_READ_BUFFER 0xE4 /* force read only 1 sector */ |
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#define WIN_CHECKPOWERMODE1 0xE5 |
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#define WIN_SLEEPNOW1 0xE6 |
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#define WIN_FLUSH_CACHE 0xE7 |
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#define WIN_WRITE_BUFFER 0xE8 /* force write only 1 sector */ |
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#define WIN_WRITE_SAME 0xE9 /* read ata-2 to use */ |
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/* SET_FEATURES 0x22 or 0xDD */
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#define WIN_FLUSH_CACHE_EXT 0xEA /* 48-Bit */ |
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#define WIN_IDENTIFY 0xEC /* ask drive to identify itself */ |
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#define WIN_MEDIAEJECT 0xED |
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#define WIN_IDENTIFY_DMA 0xEE /* same as WIN_IDENTIFY, but DMA */ |
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#define WIN_SETFEATURES 0xEF /* set special drive features */ |
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#define EXABYTE_ENABLE_NEST 0xF0 |
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#define WIN_SECURITY_SET_PASS 0xF1 |
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#define WIN_SECURITY_UNLOCK 0xF2 |
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#define WIN_SECURITY_ERASE_PREPARE 0xF3 |
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#define WIN_SECURITY_ERASE_UNIT 0xF4 |
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#define WIN_SECURITY_FREEZE_LOCK 0xF5 |
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#define WIN_SECURITY_DISABLE 0xF6 |
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#define WIN_READ_NATIVE_MAX 0xF8 /* return the native maximum address */ |
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#define WIN_SET_MAX 0xF9 |
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#define DISABLE_SEAGATE 0xFB |
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/* set to 1 set disable mult support */
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#define MAX_MULT_SECTORS 8 |
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/* ATAPI defines */
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#define ATAPI_PACKET_SIZE 12 |
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/* The generic packet command opcodes for CD/DVD Logical Units,
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* From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
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#define GPCMD_BLANK 0xa1 |
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#define GPCMD_CLOSE_TRACK 0x5b |
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#define GPCMD_FLUSH_CACHE 0x35 |
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#define GPCMD_FORMAT_UNIT 0x04 |
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#define GPCMD_GET_CONFIGURATION 0x46 |
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#define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a |
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#define GPCMD_GET_PERFORMANCE 0xac |
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#define GPCMD_INQUIRY 0x12 |
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#define GPCMD_LOAD_UNLOAD 0xa6 |
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#define GPCMD_MECHANISM_STATUS 0xbd |
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#define GPCMD_MODE_SELECT_10 0x55 |
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#define GPCMD_MODE_SENSE_10 0x5a |
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#define GPCMD_PAUSE_RESUME 0x4b |
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#define GPCMD_PLAY_AUDIO_10 0x45 |
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#define GPCMD_PLAY_AUDIO_MSF 0x47 |
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#define GPCMD_PLAY_AUDIO_TI 0x48 |
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#define GPCMD_PLAY_CD 0xbc |
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#define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e |
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#define GPCMD_READ_10 0x28 |
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#define GPCMD_READ_12 0xa8 |
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#define GPCMD_READ_CDVD_CAPACITY 0x25 |
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#define GPCMD_READ_CD 0xbe |
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#define GPCMD_READ_CD_MSF 0xb9 |
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#define GPCMD_READ_DISC_INFO 0x51 |
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#define GPCMD_READ_DVD_STRUCTURE 0xad |
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#define GPCMD_READ_FORMAT_CAPACITIES 0x23 |
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#define GPCMD_READ_HEADER 0x44 |
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#define GPCMD_READ_TRACK_RZONE_INFO 0x52 |
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#define GPCMD_READ_SUBCHANNEL 0x42 |
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#define GPCMD_READ_TOC_PMA_ATIP 0x43 |
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#define GPCMD_REPAIR_RZONE_TRACK 0x58 |
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#define GPCMD_REPORT_KEY 0xa4 |
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#define GPCMD_REQUEST_SENSE 0x03 |
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#define GPCMD_RESERVE_RZONE_TRACK 0x53 |
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#define GPCMD_SCAN 0xba |
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#define GPCMD_SEEK 0x2b |
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#define GPCMD_SEND_DVD_STRUCTURE 0xad |
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#define GPCMD_SEND_EVENT 0xa2 |
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#define GPCMD_SEND_KEY 0xa3 |
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#define GPCMD_SEND_OPC 0x54 |
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#define GPCMD_SET_READ_AHEAD 0xa7 |
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#define GPCMD_SET_STREAMING 0xb6 |
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#define GPCMD_START_STOP_UNIT 0x1b |
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#define GPCMD_STOP_PLAY_SCAN 0x4e |
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#define GPCMD_TEST_UNIT_READY 0x00 |
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#define GPCMD_VERIFY_10 0x2f |
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#define GPCMD_WRITE_10 0x2a |
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#define GPCMD_WRITE_AND_VERIFY_10 0x2e |
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/* This is listed as optional in ATAPI 2.6, but is (curiously)
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* missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji
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* Table 377 as an MMC command for SCSi devices though... Most ATAPI
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* drives support it. */
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#define GPCMD_SET_SPEED 0xbb |
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/* This seems to be a SCSI specific CD-ROM opcode
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* to play data at track/index */
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#define GPCMD_PLAYAUDIO_TI 0x48 |
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/*
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* From MS Media Status Notification Support Specification. For
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* older drives only.
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*/
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#define GPCMD_GET_MEDIA_STATUS 0xda |
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/* Mode page codes for mode sense/set */
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#define GPMODE_R_W_ERROR_PAGE 0x01 |
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#define GPMODE_WRITE_PARMS_PAGE 0x05 |
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#define GPMODE_AUDIO_CTL_PAGE 0x0e |
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#define GPMODE_POWER_PAGE 0x1a |
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#define GPMODE_FAULT_FAIL_PAGE 0x1c |
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#define GPMODE_TO_PROTECT_PAGE 0x1d |
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#define GPMODE_CAPABILITIES_PAGE 0x2a |
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#define GPMODE_ALL_PAGES 0x3f |
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/* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor
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* of MODE_SENSE_POWER_PAGE */
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#define GPMODE_CDROM_PAGE 0x0d |
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#define ATAPI_INT_REASON_CD 0x01 /* 0 = data transfer */ |
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#define ATAPI_INT_REASON_IO 0x02 /* 1 = transfer to the host */ |
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#define ATAPI_INT_REASON_REL 0x04 |
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#define ATAPI_INT_REASON_TAG 0xf8 |
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/* same constants as bochs */
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#define ASC_ILLEGAL_OPCODE 0x20 |
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#define ASC_LOGICAL_BLOCK_OOR 0x21 |
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#define ASC_INV_FIELD_IN_CMD_PACKET 0x24 |
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#define ASC_MEDIUM_NOT_PRESENT 0x3a |
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#define ASC_SAVING_PARAMETERS_NOT_SUPPORTED 0x39 |
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#define SENSE_NONE 0 |
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#define SENSE_NOT_READY 2 |
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#define SENSE_ILLEGAL_REQUEST 5 |
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#define SENSE_UNIT_ATTENTION 6 |
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struct IDEState;
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typedef void EndTransferFunc(struct IDEState *); |
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typedef struct IDEState { |
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/* ide config */
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int is_cdrom;
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int cdrom_locked;
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int cylinders, heads, sectors;
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int64_t nb_sectors; |
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int mult_sectors;
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int irq;
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/* ide regs */
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uint8_t feature; |
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uint8_t error; |
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uint16_t nsector; /* 0 is 256 to ease computations */
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uint8_t sector; |
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uint8_t lcyl; |
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uint8_t hcyl; |
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uint8_t select; |
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uint8_t status; |
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/* 0x3f6 command, only meaningful for drive 0 */
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uint8_t cmd; |
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/* depends on bit 4 in select, only meaningful for drive 0 */
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struct IDEState *cur_drive;
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BlockDriverState *bs; |
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/* ATAPI specific */
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uint8_t sense_key; |
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uint8_t asc; |
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int packet_transfer_size;
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int elementary_transfer_size;
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int io_buffer_index;
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int lba;
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/* transfer handling */
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int req_nb_sectors; /* number of sectors per interrupt */ |
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EndTransferFunc *end_transfer_func; |
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uint8_t *data_ptr; |
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uint8_t *data_end; |
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uint8_t io_buffer[MAX_MULT_SECTORS*512 + 4]; |
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} IDEState; |
353 |
|
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IDEState ide_state[MAX_DISKS]; |
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IDEState *ide_table[0x400 >> 3]; |
356 |
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static inline IDEState *get_ide_interface(uint32_t addr) |
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{ |
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return ide_table[addr >> 3]; |
360 |
} |
361 |
|
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static void padstr(char *str, const char *src, int len) |
363 |
{ |
364 |
int i, v;
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for(i = 0; i < len; i++) { |
366 |
if (*src)
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v = *src++; |
368 |
else
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v = ' ';
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*(char *)((long)str ^ 1) = v; |
371 |
str++; |
372 |
} |
373 |
} |
374 |
|
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static void padstr8(uint8_t *buf, int buf_size, const char *src) |
376 |
{ |
377 |
int i;
|
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for(i = 0; i < buf_size; i++) { |
379 |
if (*src)
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buf[i] = *src++; |
381 |
else
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buf[i] = ' ';
|
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} |
384 |
} |
385 |
|
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static void ide_identify(IDEState *s) |
387 |
{ |
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uint16_t *p; |
389 |
unsigned int oldsize; |
390 |
|
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memset(s->io_buffer, 0, 512); |
392 |
p = (uint16_t *)s->io_buffer; |
393 |
stw_raw(p + 0, 0x0040); |
394 |
stw_raw(p + 1, s->cylinders);
|
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stw_raw(p + 3, s->heads);
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stw_raw(p + 4, 512 * s->sectors); /* XXX: retired, remove ? */ |
397 |
stw_raw(p + 5, 512); /* XXX: retired, remove ? */ |
398 |
stw_raw(p + 6, s->sectors);
|
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padstr((uint8_t *)(p + 10), "QM00001", 20); /* serial number */ |
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stw_raw(p + 20, 3); /* XXX: retired, remove ? */ |
401 |
stw_raw(p + 21, 512); /* cache size in sectors */ |
402 |
stw_raw(p + 22, 4); /* ecc bytes */ |
403 |
padstr((uint8_t *)(p + 23), QEMU_VERSION, 8); /* firmware version */ |
404 |
padstr((uint8_t *)(p + 27), "QEMU HARDDISK", 40); /* model */ |
405 |
#if MAX_MULT_SECTORS > 1 |
406 |
stw_raw(p + 47, 0x8000 | MAX_MULT_SECTORS); |
407 |
#endif
|
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stw_raw(p + 48, 1); /* dword I/O */ |
409 |
stw_raw(p + 49, 1 << 9); /* LBA supported, no DMA */ |
410 |
stw_raw(p + 51, 0x200); /* PIO transfer cycle */ |
411 |
stw_raw(p + 52, 0x200); /* DMA transfer cycle */ |
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stw_raw(p + 53, 1); /* words 54-58 are valid */ |
413 |
stw_raw(p + 54, s->cylinders);
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stw_raw(p + 55, s->heads);
|
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stw_raw(p + 56, s->sectors);
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oldsize = s->cylinders * s->heads * s->sectors; |
417 |
stw_raw(p + 57, oldsize);
|
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stw_raw(p + 58, oldsize >> 16); |
419 |
if (s->mult_sectors)
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stw_raw(p + 59, 0x100 | s->mult_sectors); |
421 |
stw_raw(p + 60, s->nb_sectors);
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stw_raw(p + 61, s->nb_sectors >> 16); |
423 |
stw_raw(p + 80, (1 << 1) | (1 << 2)); |
424 |
stw_raw(p + 82, (1 << 14)); |
425 |
stw_raw(p + 83, (1 << 14)); |
426 |
stw_raw(p + 84, (1 << 14)); |
427 |
stw_raw(p + 85, (1 << 14)); |
428 |
stw_raw(p + 86, 0); |
429 |
stw_raw(p + 87, (1 << 14)); |
430 |
} |
431 |
|
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static void ide_atapi_identify(IDEState *s) |
433 |
{ |
434 |
uint16_t *p; |
435 |
|
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memset(s->io_buffer, 0, 512); |
437 |
p = (uint16_t *)s->io_buffer; |
438 |
/* Removable CDROM, 50us response, 12 byte packets */
|
439 |
stw_raw(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0)); |
440 |
stw_raw(p + 1, s->cylinders);
|
441 |
stw_raw(p + 3, s->heads);
|
442 |
stw_raw(p + 4, 512 * s->sectors); /* sectors */ |
443 |
stw_raw(p + 5, 512); /* sector size */ |
444 |
stw_raw(p + 6, s->sectors);
|
445 |
padstr((uint8_t *)(p + 10), "QM00001", 20); /* serial number */ |
446 |
stw_raw(p + 20, 3); /* buffer type */ |
447 |
stw_raw(p + 21, 512); /* cache size in sectors */ |
448 |
stw_raw(p + 22, 4); /* ecc bytes */ |
449 |
padstr((uint8_t *)(p + 23), QEMU_VERSION, 8); /* firmware version */ |
450 |
padstr((uint8_t *)(p + 27), "QEMU CD-ROM", 40); /* model */ |
451 |
stw_raw(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */ |
452 |
stw_raw(p + 49, 1 << 9); /* LBA supported, no DMA */ |
453 |
stw_raw(p + 53, 3); /* words 64-70, 54-58 valid */ |
454 |
stw_raw(p + 63, 0x103); /* DMA modes XXX: may be incorrect */ |
455 |
stw_raw(p + 64, 1); /* PIO modes */ |
456 |
stw_raw(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */ |
457 |
stw_raw(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */ |
458 |
stw_raw(p + 67, 0x12c); /* minimum PIO cycle time without flow control */ |
459 |
stw_raw(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */ |
460 |
|
461 |
stw_raw(p + 71, 30); /* in ns */ |
462 |
stw_raw(p + 72, 30); /* in ns */ |
463 |
|
464 |
stw_raw(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */ |
465 |
} |
466 |
|
467 |
static void ide_set_signature(IDEState *s) |
468 |
{ |
469 |
s->select &= 0xf0; /* clear head */ |
470 |
/* put signature */
|
471 |
s->nsector = 1;
|
472 |
s->sector = 1;
|
473 |
if (s->is_cdrom) {
|
474 |
s->lcyl = 0x14;
|
475 |
s->hcyl = 0xeb;
|
476 |
} else if (s->bs) { |
477 |
s->lcyl = 0;
|
478 |
s->hcyl = 0;
|
479 |
} else {
|
480 |
s->lcyl = 0xff;
|
481 |
s->hcyl = 0xff;
|
482 |
} |
483 |
} |
484 |
|
485 |
static inline void ide_abort_command(IDEState *s) |
486 |
{ |
487 |
s->status = READY_STAT | ERR_STAT; |
488 |
s->error = ABRT_ERR; |
489 |
} |
490 |
|
491 |
static inline void ide_set_irq(IDEState *s) |
492 |
{ |
493 |
if (!(s->cmd & IDE_CMD_DISABLE_IRQ)) {
|
494 |
pic_set_irq(s->irq, 1);
|
495 |
} |
496 |
} |
497 |
|
498 |
/* prepare data transfer and tell what to do after */
|
499 |
static void ide_transfer_start(IDEState *s, uint8_t *buf, int size, |
500 |
EndTransferFunc *end_transfer_func) |
501 |
{ |
502 |
s->end_transfer_func = end_transfer_func; |
503 |
s->data_ptr = buf; |
504 |
s->data_end = buf + size; |
505 |
s->status |= DRQ_STAT; |
506 |
} |
507 |
|
508 |
static void ide_transfer_stop(IDEState *s) |
509 |
{ |
510 |
s->end_transfer_func = ide_transfer_stop; |
511 |
s->data_ptr = s->io_buffer; |
512 |
s->data_end = s->io_buffer; |
513 |
s->status &= ~DRQ_STAT; |
514 |
} |
515 |
|
516 |
static int64_t ide_get_sector(IDEState *s)
|
517 |
{ |
518 |
int64_t sector_num; |
519 |
if (s->select & 0x40) { |
520 |
/* lba */
|
521 |
sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) | |
522 |
(s->lcyl << 8) | s->sector;
|
523 |
} else {
|
524 |
sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
|
525 |
(s->select & 0x0f) * s->sectors +
|
526 |
(s->sector - 1);
|
527 |
} |
528 |
return sector_num;
|
529 |
} |
530 |
|
531 |
static void ide_set_sector(IDEState *s, int64_t sector_num) |
532 |
{ |
533 |
unsigned int cyl, r; |
534 |
if (s->select & 0x40) { |
535 |
s->select = (s->select & 0xf0) | (sector_num >> 24); |
536 |
s->hcyl = (sector_num >> 16);
|
537 |
s->lcyl = (sector_num >> 8);
|
538 |
s->sector = (sector_num); |
539 |
} else {
|
540 |
cyl = sector_num / (s->heads * s->sectors); |
541 |
r = sector_num % (s->heads * s->sectors); |
542 |
s->hcyl = cyl >> 8;
|
543 |
s->lcyl = cyl; |
544 |
s->select = (s->select & 0xf0) | (r / s->sectors);
|
545 |
s->sector = (r % s->sectors) + 1;
|
546 |
} |
547 |
} |
548 |
|
549 |
static void ide_sector_read(IDEState *s) |
550 |
{ |
551 |
int64_t sector_num; |
552 |
int ret, n;
|
553 |
|
554 |
s->status = READY_STAT | SEEK_STAT; |
555 |
s->error = 0; /* not needed by IDE spec, but needed by Windows */ |
556 |
sector_num = ide_get_sector(s); |
557 |
n = s->nsector; |
558 |
if (n == 0) { |
559 |
/* no more sector to read from disk */
|
560 |
ide_transfer_stop(s); |
561 |
} else {
|
562 |
#if defined(DEBUG_IDE)
|
563 |
printf("read sector=%Ld\n", sector_num);
|
564 |
#endif
|
565 |
if (n > s->req_nb_sectors)
|
566 |
n = s->req_nb_sectors; |
567 |
ret = bdrv_read(s->bs, sector_num, s->io_buffer, n); |
568 |
ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_read);
|
569 |
ide_set_irq(s); |
570 |
ide_set_sector(s, sector_num + n); |
571 |
s->nsector -= n; |
572 |
} |
573 |
} |
574 |
|
575 |
static void ide_sector_write(IDEState *s) |
576 |
{ |
577 |
int64_t sector_num; |
578 |
int ret, n, n1;
|
579 |
|
580 |
s->status = READY_STAT | SEEK_STAT; |
581 |
sector_num = ide_get_sector(s); |
582 |
#if defined(DEBUG_IDE)
|
583 |
printf("write sector=%Ld\n", sector_num);
|
584 |
#endif
|
585 |
n = s->nsector; |
586 |
if (n > s->req_nb_sectors)
|
587 |
n = s->req_nb_sectors; |
588 |
ret = bdrv_write(s->bs, sector_num, s->io_buffer, n); |
589 |
s->nsector -= n; |
590 |
if (s->nsector == 0) { |
591 |
/* no more sector to write */
|
592 |
ide_transfer_stop(s); |
593 |
} else {
|
594 |
n1 = s->nsector; |
595 |
if (n1 > s->req_nb_sectors)
|
596 |
n1 = s->req_nb_sectors; |
597 |
ide_transfer_start(s, s->io_buffer, 512 * n1, ide_sector_write);
|
598 |
} |
599 |
ide_set_sector(s, sector_num + n); |
600 |
ide_set_irq(s); |
601 |
} |
602 |
|
603 |
static void ide_atapi_cmd_ok(IDEState *s) |
604 |
{ |
605 |
s->error = 0;
|
606 |
s->status = READY_STAT; |
607 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
608 |
ide_set_irq(s); |
609 |
} |
610 |
|
611 |
static void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc) |
612 |
{ |
613 |
#ifdef DEBUG_IDE_ATAPI
|
614 |
printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key, asc);
|
615 |
#endif
|
616 |
s->error = sense_key << 4;
|
617 |
s->status = READY_STAT | ERR_STAT; |
618 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
619 |
s->sense_key = sense_key; |
620 |
s->asc = asc; |
621 |
ide_set_irq(s); |
622 |
} |
623 |
|
624 |
static inline void cpu_to_ube16(uint8_t *buf, int val) |
625 |
{ |
626 |
buf[0] = val >> 8; |
627 |
buf[1] = val;
|
628 |
} |
629 |
|
630 |
static inline void cpu_to_ube32(uint8_t *buf, unsigned int val) |
631 |
{ |
632 |
buf[0] = val >> 24; |
633 |
buf[1] = val >> 16; |
634 |
buf[2] = val >> 8; |
635 |
buf[3] = val;
|
636 |
} |
637 |
|
638 |
static inline int ube16_to_cpu(const uint8_t *buf) |
639 |
{ |
640 |
return (buf[0] << 8) | buf[1]; |
641 |
} |
642 |
|
643 |
static inline int ube32_to_cpu(const uint8_t *buf) |
644 |
{ |
645 |
return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; |
646 |
} |
647 |
|
648 |
/* The whole ATAPI transfer logic is handled in this function */
|
649 |
static void ide_atapi_cmd_reply_end(IDEState *s) |
650 |
{ |
651 |
int byte_count_limit, size;
|
652 |
#ifdef DEBUG_IDE_ATAPI
|
653 |
printf("reply: tx_size=%d elem_tx_size=%d index=%d\n",
|
654 |
s->packet_transfer_size, |
655 |
s->elementary_transfer_size, |
656 |
s->io_buffer_index); |
657 |
#endif
|
658 |
if (s->packet_transfer_size <= 0) { |
659 |
/* end of transfer */
|
660 |
ide_transfer_stop(s); |
661 |
s->status = READY_STAT; |
662 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
663 |
ide_set_irq(s); |
664 |
#ifdef DEBUG_IDE_ATAPI
|
665 |
printf("status=0x%x\n", s->status);
|
666 |
#endif
|
667 |
} else {
|
668 |
/* see if a new sector must be read */
|
669 |
if (s->lba != -1 && s->io_buffer_index >= 2048) { |
670 |
bdrv_read(s->bs, (int64_t)s->lba << 2, s->io_buffer, 4); |
671 |
s->lba++; |
672 |
s->io_buffer_index = 0;
|
673 |
} |
674 |
if (s->elementary_transfer_size > 0) { |
675 |
/* there are some data left to transmit in this elementary
|
676 |
transfer */
|
677 |
size = 2048 - s->io_buffer_index;
|
678 |
if (size > s->elementary_transfer_size)
|
679 |
size = s->elementary_transfer_size; |
680 |
ide_transfer_start(s, s->io_buffer + s->io_buffer_index, |
681 |
size, ide_atapi_cmd_reply_end); |
682 |
s->packet_transfer_size -= size; |
683 |
s->elementary_transfer_size -= size; |
684 |
s->io_buffer_index += size; |
685 |
} else {
|
686 |
/* a new transfer is needed */
|
687 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO;
|
688 |
byte_count_limit = s->lcyl | (s->hcyl << 8);
|
689 |
#ifdef DEBUG_IDE_ATAPI
|
690 |
printf("byte_count_limit=%d\n", byte_count_limit);
|
691 |
#endif
|
692 |
if (byte_count_limit == 0xffff) |
693 |
byte_count_limit--; |
694 |
size = s->packet_transfer_size; |
695 |
if (size > byte_count_limit) {
|
696 |
/* byte count limit must be even if this case */
|
697 |
if (byte_count_limit & 1) |
698 |
byte_count_limit--; |
699 |
size = byte_count_limit; |
700 |
} |
701 |
s->lcyl = size; |
702 |
s->hcyl = size >> 8;
|
703 |
s->elementary_transfer_size = size; |
704 |
/* we cannot transmit more than one sector at a time */
|
705 |
if (s->lba != -1) { |
706 |
if (size > (2048 - s->io_buffer_index)) |
707 |
size = (2048 - s->io_buffer_index);
|
708 |
} |
709 |
ide_transfer_start(s, s->io_buffer + s->io_buffer_index, |
710 |
size, ide_atapi_cmd_reply_end); |
711 |
s->packet_transfer_size -= size; |
712 |
s->elementary_transfer_size -= size; |
713 |
s->io_buffer_index += size; |
714 |
ide_set_irq(s); |
715 |
#ifdef DEBUG_IDE_ATAPI
|
716 |
printf("status=0x%x\n", s->status);
|
717 |
#endif
|
718 |
} |
719 |
} |
720 |
} |
721 |
|
722 |
/* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
|
723 |
static void ide_atapi_cmd_reply(IDEState *s, int size, int max_size) |
724 |
{ |
725 |
if (size > max_size)
|
726 |
size = max_size; |
727 |
s->lba = -1; /* no sector read */ |
728 |
s->packet_transfer_size = size; |
729 |
s->elementary_transfer_size = 0;
|
730 |
s->io_buffer_index = 0;
|
731 |
|
732 |
s->status = READY_STAT; |
733 |
ide_atapi_cmd_reply_end(s); |
734 |
} |
735 |
|
736 |
/* start a CD-CDROM read command */
|
737 |
static void ide_atapi_cmd_read(IDEState *s, int lba, int nb_sectors) |
738 |
{ |
739 |
#ifdef DEBUG_IDE_ATAPI
|
740 |
printf("read: LBA=%d nb_sectors=%d\n", lba, nb_sectors);
|
741 |
#endif
|
742 |
s->lba = lba; |
743 |
s->packet_transfer_size = nb_sectors * 2048;
|
744 |
s->elementary_transfer_size = 0;
|
745 |
s->io_buffer_index = 2048;
|
746 |
|
747 |
s->status = READY_STAT; |
748 |
ide_atapi_cmd_reply_end(s); |
749 |
} |
750 |
|
751 |
/* same toc as bochs. Return -1 if error or the toc length */
|
752 |
static int cdrom_read_toc(IDEState *s, uint8_t *buf, int msf, int start_track) |
753 |
{ |
754 |
uint8_t *q; |
755 |
int nb_sectors, len;
|
756 |
|
757 |
if (start_track > 1 && start_track != 0xaa) |
758 |
return -1; |
759 |
q = buf + 2;
|
760 |
*q++ = 1;
|
761 |
*q++ = 1;
|
762 |
if (start_track <= 1) { |
763 |
*q++ = 0; /* reserved */ |
764 |
*q++ = 0x14; /* ADR, control */ |
765 |
*q++ = 1; /* track number */ |
766 |
*q++ = 0; /* reserved */ |
767 |
if (msf) {
|
768 |
*q++ = 0; /* reserved */ |
769 |
*q++ = 0; /* minute */ |
770 |
*q++ = 2; /* second */ |
771 |
*q++ = 0; /* frame */ |
772 |
} else {
|
773 |
/* sector 0 */
|
774 |
cpu_to_ube32(q, 0);
|
775 |
q += 4;
|
776 |
} |
777 |
} |
778 |
/* lead out track */
|
779 |
*q++ = 0; /* reserved */ |
780 |
*q++ = 0x16; /* ADR, control */ |
781 |
*q++ = 0xaa; /* track number */ |
782 |
*q++ = 0; /* reserved */ |
783 |
nb_sectors = s->nb_sectors >> 2;
|
784 |
if (msf) {
|
785 |
*q++ = 0; /* reserved */ |
786 |
*q++ = ((nb_sectors + 150) / 75) / 60; |
787 |
*q++ = ((nb_sectors + 150) / 75) % 60; |
788 |
*q++ = (nb_sectors + 150) % 75; |
789 |
} else {
|
790 |
cpu_to_ube32(q, nb_sectors); |
791 |
q += 4;
|
792 |
} |
793 |
len = q - buf; |
794 |
cpu_to_ube16(buf, len - 2);
|
795 |
return len;
|
796 |
} |
797 |
|
798 |
static void ide_atapi_cmd(IDEState *s) |
799 |
{ |
800 |
const uint8_t *packet;
|
801 |
uint8_t *buf; |
802 |
int max_len;
|
803 |
|
804 |
packet = s->io_buffer; |
805 |
buf = s->io_buffer; |
806 |
#ifdef DEBUG_IDE_ATAPI
|
807 |
{ |
808 |
int i;
|
809 |
printf("ATAPI limit=0x%x packet:", s->lcyl | (s->hcyl << 8)); |
810 |
for(i = 0; i < ATAPI_PACKET_SIZE; i++) { |
811 |
printf(" %02x", packet[i]);
|
812 |
} |
813 |
printf("\n");
|
814 |
} |
815 |
#endif
|
816 |
switch(s->io_buffer[0]) { |
817 |
case GPCMD_TEST_UNIT_READY:
|
818 |
if (s->bs) {
|
819 |
ide_atapi_cmd_ok(s); |
820 |
} else {
|
821 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
822 |
ASC_MEDIUM_NOT_PRESENT); |
823 |
} |
824 |
break;
|
825 |
case GPCMD_MODE_SENSE_10:
|
826 |
{ |
827 |
int action, code;
|
828 |
max_len = ube16_to_cpu(packet + 7);
|
829 |
action = packet[2] >> 6; |
830 |
code = packet[2] & 0x3f; |
831 |
switch(action) {
|
832 |
case 0: /* current values */ |
833 |
switch(code) {
|
834 |
case 0x01: /* error recovery */ |
835 |
cpu_to_ube16(&buf[0], 16 + 6); |
836 |
buf[2] = 0x70; |
837 |
buf[3] = 0; |
838 |
buf[4] = 0; |
839 |
buf[5] = 0; |
840 |
buf[6] = 0; |
841 |
buf[7] = 0; |
842 |
|
843 |
buf[8] = 0x01; |
844 |
buf[9] = 0x06; |
845 |
buf[10] = 0x00; |
846 |
buf[11] = 0x05; |
847 |
buf[12] = 0x00; |
848 |
buf[13] = 0x00; |
849 |
buf[14] = 0x00; |
850 |
buf[15] = 0x00; |
851 |
ide_atapi_cmd_reply(s, 16, max_len);
|
852 |
break;
|
853 |
case 0x2a: |
854 |
cpu_to_ube16(&buf[0], 28 + 6); |
855 |
buf[2] = 0x70; |
856 |
buf[3] = 0; |
857 |
buf[4] = 0; |
858 |
buf[5] = 0; |
859 |
buf[6] = 0; |
860 |
buf[7] = 0; |
861 |
|
862 |
buf[8] = 0x2a; |
863 |
buf[9] = 0x12; |
864 |
buf[10] = 0x00; |
865 |
buf[11] = 0x00; |
866 |
|
867 |
buf[12] = 0x70; |
868 |
buf[13] = 3 << 5; |
869 |
buf[14] = (1 << 0) | (1 << 3) | (1 << 5); |
870 |
if (s->cdrom_locked)
|
871 |
buf[6] |= 1 << 1; |
872 |
buf[15] = 0x00; |
873 |
cpu_to_ube16(&buf[16], 706); |
874 |
buf[18] = 0; |
875 |
buf[19] = 2; |
876 |
cpu_to_ube16(&buf[20], 512); |
877 |
cpu_to_ube16(&buf[22], 706); |
878 |
buf[24] = 0; |
879 |
buf[25] = 0; |
880 |
buf[26] = 0; |
881 |
buf[27] = 0; |
882 |
ide_atapi_cmd_reply(s, 28, max_len);
|
883 |
break;
|
884 |
default:
|
885 |
goto error_cmd;
|
886 |
} |
887 |
break;
|
888 |
case 1: /* changeable values */ |
889 |
goto error_cmd;
|
890 |
case 2: /* default values */ |
891 |
goto error_cmd;
|
892 |
default:
|
893 |
case 3: /* saved values */ |
894 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
895 |
ASC_SAVING_PARAMETERS_NOT_SUPPORTED); |
896 |
break;
|
897 |
} |
898 |
} |
899 |
break;
|
900 |
case GPCMD_REQUEST_SENSE:
|
901 |
max_len = packet[4];
|
902 |
memset(buf, 0, 18); |
903 |
buf[0] = 0x70 | (1 << 7); |
904 |
buf[2] = s->sense_key;
|
905 |
buf[7] = 10; |
906 |
buf[12] = s->asc;
|
907 |
ide_atapi_cmd_reply(s, 18, max_len);
|
908 |
break;
|
909 |
case GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
|
910 |
if (s->bs) {
|
911 |
s->cdrom_locked = packet[4] & 1; |
912 |
ide_atapi_cmd_ok(s); |
913 |
} else {
|
914 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
915 |
ASC_MEDIUM_NOT_PRESENT); |
916 |
} |
917 |
break;
|
918 |
case GPCMD_READ_10:
|
919 |
case GPCMD_READ_12:
|
920 |
{ |
921 |
int nb_sectors, lba;
|
922 |
|
923 |
if (!s->bs) {
|
924 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
925 |
ASC_MEDIUM_NOT_PRESENT); |
926 |
break;
|
927 |
} |
928 |
if (packet[0] == GPCMD_READ_10) |
929 |
nb_sectors = ube16_to_cpu(packet + 7);
|
930 |
else
|
931 |
nb_sectors = ube32_to_cpu(packet + 6);
|
932 |
lba = ube32_to_cpu(packet + 2);
|
933 |
if (nb_sectors == 0) { |
934 |
ide_atapi_cmd_ok(s); |
935 |
break;
|
936 |
} |
937 |
if (((int64_t)(lba + nb_sectors) << 2) > s->nb_sectors) { |
938 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
939 |
ASC_LOGICAL_BLOCK_OOR); |
940 |
break;
|
941 |
} |
942 |
ide_atapi_cmd_read(s, lba, nb_sectors); |
943 |
} |
944 |
break;
|
945 |
case GPCMD_SEEK:
|
946 |
{ |
947 |
int lba;
|
948 |
if (!s->bs) {
|
949 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
950 |
ASC_MEDIUM_NOT_PRESENT); |
951 |
break;
|
952 |
} |
953 |
lba = ube32_to_cpu(packet + 2);
|
954 |
if (((int64_t)lba << 2) > s->nb_sectors) { |
955 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
956 |
ASC_LOGICAL_BLOCK_OOR); |
957 |
break;
|
958 |
} |
959 |
ide_atapi_cmd_ok(s); |
960 |
} |
961 |
break;
|
962 |
case GPCMD_START_STOP_UNIT:
|
963 |
{ |
964 |
int start, eject;
|
965 |
start = packet[4] & 1; |
966 |
eject = (packet[4] >> 1) & 1; |
967 |
|
968 |
/* XXX: currently none implemented */
|
969 |
ide_atapi_cmd_ok(s); |
970 |
} |
971 |
break;
|
972 |
case GPCMD_MECHANISM_STATUS:
|
973 |
{ |
974 |
max_len = ube16_to_cpu(packet + 8);
|
975 |
cpu_to_ube16(buf, 0);
|
976 |
/* no current LBA */
|
977 |
buf[2] = 0; |
978 |
buf[3] = 0; |
979 |
buf[4] = 0; |
980 |
buf[5] = 1; |
981 |
cpu_to_ube16(buf + 6, 0); |
982 |
ide_atapi_cmd_reply(s, 8, max_len);
|
983 |
} |
984 |
break;
|
985 |
case GPCMD_READ_TOC_PMA_ATIP:
|
986 |
{ |
987 |
int format, msf, start_track, len;
|
988 |
|
989 |
if (!s->bs) {
|
990 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
991 |
ASC_MEDIUM_NOT_PRESENT); |
992 |
break;
|
993 |
} |
994 |
max_len = ube16_to_cpu(packet + 7);
|
995 |
format = packet[9] >> 6; |
996 |
msf = (packet[1] >> 1) & 1; |
997 |
start_track = packet[6];
|
998 |
switch(format) {
|
999 |
case 0: |
1000 |
len = cdrom_read_toc(s, buf, msf, start_track); |
1001 |
if (len < 0) |
1002 |
goto error_cmd;
|
1003 |
ide_atapi_cmd_reply(s, len, max_len); |
1004 |
break;
|
1005 |
case 1: |
1006 |
/* multi session : only a single session defined */
|
1007 |
memset(buf, 0, 12); |
1008 |
buf[1] = 0x0a; |
1009 |
buf[2] = 0x01; |
1010 |
buf[3] = 0x01; |
1011 |
ide_atapi_cmd_reply(s, 12, max_len);
|
1012 |
break;
|
1013 |
default:
|
1014 |
error_cmd:
|
1015 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
1016 |
ASC_INV_FIELD_IN_CMD_PACKET); |
1017 |
break;
|
1018 |
} |
1019 |
} |
1020 |
break;
|
1021 |
case GPCMD_READ_CDVD_CAPACITY:
|
1022 |
if (!s->bs) {
|
1023 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
1024 |
ASC_MEDIUM_NOT_PRESENT); |
1025 |
break;
|
1026 |
} |
1027 |
/* NOTE: it is really the number of sectors minus 1 */
|
1028 |
cpu_to_ube32(buf, (s->nb_sectors >> 2) - 1); |
1029 |
cpu_to_ube32(buf + 4, 2048); |
1030 |
ide_atapi_cmd_reply(s, 8, 8); |
1031 |
break;
|
1032 |
case GPCMD_INQUIRY:
|
1033 |
max_len = packet[4];
|
1034 |
buf[0] = 0x05; /* CD-ROM */ |
1035 |
buf[1] = 0x80; /* removable */ |
1036 |
buf[2] = 0x00; /* ISO */ |
1037 |
buf[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */ |
1038 |
buf[4] = 31; /* additionnal length */ |
1039 |
buf[5] = 0; /* reserved */ |
1040 |
buf[6] = 0; /* reserved */ |
1041 |
buf[7] = 0; /* reserved */ |
1042 |
padstr8(buf + 8, 8, "QEMU"); |
1043 |
padstr8(buf + 16, 16, "QEMU CD-ROM"); |
1044 |
padstr8(buf + 32, 4, QEMU_VERSION); |
1045 |
ide_atapi_cmd_reply(s, 36, max_len);
|
1046 |
break;
|
1047 |
default:
|
1048 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
1049 |
ASC_ILLEGAL_OPCODE); |
1050 |
break;
|
1051 |
} |
1052 |
} |
1053 |
|
1054 |
static void ide_ioport_write(CPUState *env, uint32_t addr, uint32_t val) |
1055 |
{ |
1056 |
IDEState *ide_if = get_ide_interface(addr); |
1057 |
IDEState *s = ide_if->cur_drive; |
1058 |
int unit, n;
|
1059 |
|
1060 |
#ifdef DEBUG_IDE
|
1061 |
printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
|
1062 |
#endif
|
1063 |
addr &= 7;
|
1064 |
switch(addr) {
|
1065 |
case 0: |
1066 |
break;
|
1067 |
case 1: |
1068 |
s->feature = val; |
1069 |
break;
|
1070 |
case 2: |
1071 |
if (val == 0) |
1072 |
val = 256;
|
1073 |
s->nsector = val; |
1074 |
break;
|
1075 |
case 3: |
1076 |
s->sector = val; |
1077 |
break;
|
1078 |
case 4: |
1079 |
s->lcyl = val; |
1080 |
break;
|
1081 |
case 5: |
1082 |
s->hcyl = val; |
1083 |
break;
|
1084 |
case 6: |
1085 |
/* select drive */
|
1086 |
unit = (val >> 4) & 1; |
1087 |
s = ide_if + unit; |
1088 |
ide_if->cur_drive = s; |
1089 |
s->select = val; |
1090 |
break;
|
1091 |
default:
|
1092 |
case 7: |
1093 |
/* command */
|
1094 |
#if defined(DEBUG_IDE)
|
1095 |
printf("ide: CMD=%02x\n", val);
|
1096 |
#endif
|
1097 |
switch(val) {
|
1098 |
case WIN_IDENTIFY:
|
1099 |
if (s->bs && !s->is_cdrom) {
|
1100 |
ide_identify(s); |
1101 |
s->status = READY_STAT; |
1102 |
ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
|
1103 |
} else {
|
1104 |
if (s->is_cdrom) {
|
1105 |
ide_set_signature(s); |
1106 |
} |
1107 |
ide_abort_command(s); |
1108 |
} |
1109 |
ide_set_irq(s); |
1110 |
break;
|
1111 |
case WIN_SPECIFY:
|
1112 |
case WIN_RECAL:
|
1113 |
s->error = 0;
|
1114 |
s->status = READY_STAT; |
1115 |
ide_set_irq(s); |
1116 |
break;
|
1117 |
case WIN_SETMULT:
|
1118 |
if (s->nsector > MAX_MULT_SECTORS ||
|
1119 |
s->nsector == 0 ||
|
1120 |
(s->nsector & (s->nsector - 1)) != 0) { |
1121 |
ide_abort_command(s); |
1122 |
} else {
|
1123 |
s->mult_sectors = s->nsector; |
1124 |
s->status = READY_STAT; |
1125 |
} |
1126 |
ide_set_irq(s); |
1127 |
break;
|
1128 |
case WIN_VERIFY:
|
1129 |
case WIN_VERIFY_ONCE:
|
1130 |
/* do sector number check ? */
|
1131 |
s->status = READY_STAT; |
1132 |
ide_set_irq(s); |
1133 |
break;
|
1134 |
case WIN_READ:
|
1135 |
case WIN_READ_ONCE:
|
1136 |
if (!s->bs)
|
1137 |
goto abort_cmd;
|
1138 |
s->req_nb_sectors = 1;
|
1139 |
ide_sector_read(s); |
1140 |
break;
|
1141 |
case WIN_WRITE:
|
1142 |
case WIN_WRITE_ONCE:
|
1143 |
s->error = 0;
|
1144 |
s->status = SEEK_STAT; |
1145 |
s->req_nb_sectors = 1;
|
1146 |
ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
|
1147 |
break;
|
1148 |
case WIN_MULTREAD:
|
1149 |
if (!s->mult_sectors)
|
1150 |
goto abort_cmd;
|
1151 |
s->req_nb_sectors = s->mult_sectors; |
1152 |
ide_sector_read(s); |
1153 |
break;
|
1154 |
case WIN_MULTWRITE:
|
1155 |
if (!s->mult_sectors)
|
1156 |
goto abort_cmd;
|
1157 |
s->error = 0;
|
1158 |
s->status = SEEK_STAT; |
1159 |
s->req_nb_sectors = s->mult_sectors; |
1160 |
n = s->nsector; |
1161 |
if (n > s->req_nb_sectors)
|
1162 |
n = s->req_nb_sectors; |
1163 |
ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
|
1164 |
break;
|
1165 |
case WIN_READ_NATIVE_MAX:
|
1166 |
ide_set_sector(s, s->nb_sectors - 1);
|
1167 |
s->status = READY_STAT; |
1168 |
ide_set_irq(s); |
1169 |
break;
|
1170 |
case WIN_CHECKPOWERMODE1:
|
1171 |
s->nsector = 0xff; /* device active or idle */ |
1172 |
s->status = READY_STAT; |
1173 |
ide_set_irq(s); |
1174 |
break;
|
1175 |
|
1176 |
/* ATAPI commands */
|
1177 |
case WIN_PIDENTIFY:
|
1178 |
if (s->is_cdrom) {
|
1179 |
ide_atapi_identify(s); |
1180 |
s->status = READY_STAT; |
1181 |
ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
|
1182 |
} else {
|
1183 |
ide_abort_command(s); |
1184 |
} |
1185 |
ide_set_irq(s); |
1186 |
break;
|
1187 |
case WIN_SRST:
|
1188 |
if (!s->is_cdrom)
|
1189 |
goto abort_cmd;
|
1190 |
ide_set_signature(s); |
1191 |
s->status = 0x00; /* NOTE: READY is _not_ set */ |
1192 |
s->error = 0x01;
|
1193 |
break;
|
1194 |
case WIN_PACKETCMD:
|
1195 |
if (!s->is_cdrom)
|
1196 |
goto abort_cmd;
|
1197 |
/* DMA or overlapping commands not supported */
|
1198 |
if ((s->feature & 0x03) != 0) |
1199 |
goto abort_cmd;
|
1200 |
s->nsector = 1;
|
1201 |
ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE, |
1202 |
ide_atapi_cmd); |
1203 |
break;
|
1204 |
default:
|
1205 |
abort_cmd:
|
1206 |
ide_abort_command(s); |
1207 |
ide_set_irq(s); |
1208 |
break;
|
1209 |
} |
1210 |
} |
1211 |
} |
1212 |
|
1213 |
static uint32_t ide_ioport_read(CPUState *env, uint32_t addr1)
|
1214 |
{ |
1215 |
IDEState *s = get_ide_interface(addr1)->cur_drive; |
1216 |
uint32_t addr; |
1217 |
int ret;
|
1218 |
|
1219 |
addr = addr1 & 7;
|
1220 |
switch(addr) {
|
1221 |
case 0: |
1222 |
ret = 0xff;
|
1223 |
break;
|
1224 |
case 1: |
1225 |
ret = s->error; |
1226 |
break;
|
1227 |
case 2: |
1228 |
ret = s->nsector & 0xff;
|
1229 |
break;
|
1230 |
case 3: |
1231 |
ret = s->sector; |
1232 |
break;
|
1233 |
case 4: |
1234 |
ret = s->lcyl; |
1235 |
break;
|
1236 |
case 5: |
1237 |
ret = s->hcyl; |
1238 |
break;
|
1239 |
case 6: |
1240 |
ret = s->select; |
1241 |
break;
|
1242 |
default:
|
1243 |
case 7: |
1244 |
ret = s->status; |
1245 |
pic_set_irq(s->irq, 0);
|
1246 |
break;
|
1247 |
} |
1248 |
#ifdef DEBUG_IDE
|
1249 |
printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
|
1250 |
#endif
|
1251 |
return ret;
|
1252 |
} |
1253 |
|
1254 |
static uint32_t ide_status_read(CPUState *env, uint32_t addr)
|
1255 |
{ |
1256 |
IDEState *s = get_ide_interface(addr)->cur_drive; |
1257 |
int ret;
|
1258 |
ret = s->status; |
1259 |
#ifdef DEBUG_IDE
|
1260 |
printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
|
1261 |
#endif
|
1262 |
return ret;
|
1263 |
} |
1264 |
|
1265 |
static void ide_cmd_write(CPUState *env, uint32_t addr, uint32_t val) |
1266 |
{ |
1267 |
IDEState *ide_if = get_ide_interface(addr); |
1268 |
IDEState *s; |
1269 |
int i;
|
1270 |
|
1271 |
#ifdef DEBUG_IDE
|
1272 |
printf("ide: write control addr=0x%x val=%02x\n", addr, val);
|
1273 |
#endif
|
1274 |
/* common for both drives */
|
1275 |
if (!(ide_if[0].cmd & IDE_CMD_RESET) && |
1276 |
(val & IDE_CMD_RESET)) { |
1277 |
/* reset low to high */
|
1278 |
for(i = 0;i < 2; i++) { |
1279 |
s = &ide_if[i]; |
1280 |
s->status = BUSY_STAT | SEEK_STAT; |
1281 |
s->error = 0x01;
|
1282 |
} |
1283 |
} else if ((ide_if[0].cmd & IDE_CMD_RESET) && |
1284 |
!(val & IDE_CMD_RESET)) { |
1285 |
/* high to low */
|
1286 |
for(i = 0;i < 2; i++) { |
1287 |
s = &ide_if[i]; |
1288 |
if (s->is_cdrom)
|
1289 |
s->status = 0x00; /* NOTE: READY is _not_ set */ |
1290 |
else
|
1291 |
s->status = READY_STAT | SEEK_STAT; |
1292 |
ide_set_signature(s); |
1293 |
} |
1294 |
} |
1295 |
|
1296 |
ide_if[0].cmd = val;
|
1297 |
ide_if[1].cmd = val;
|
1298 |
} |
1299 |
|
1300 |
static void ide_data_writew(CPUState *env, uint32_t addr, uint32_t val) |
1301 |
{ |
1302 |
IDEState *s = get_ide_interface(addr)->cur_drive; |
1303 |
uint8_t *p; |
1304 |
|
1305 |
p = s->data_ptr; |
1306 |
*(uint16_t *)p = tswap16(val); |
1307 |
p += 2;
|
1308 |
s->data_ptr = p; |
1309 |
if (p >= s->data_end)
|
1310 |
s->end_transfer_func(s); |
1311 |
} |
1312 |
|
1313 |
static uint32_t ide_data_readw(CPUState *env, uint32_t addr)
|
1314 |
{ |
1315 |
IDEState *s = get_ide_interface(addr)->cur_drive; |
1316 |
uint8_t *p; |
1317 |
int ret;
|
1318 |
p = s->data_ptr; |
1319 |
ret = tswap16(*(uint16_t *)p); |
1320 |
p += 2;
|
1321 |
s->data_ptr = p; |
1322 |
if (p >= s->data_end)
|
1323 |
s->end_transfer_func(s); |
1324 |
return ret;
|
1325 |
} |
1326 |
|
1327 |
static void ide_data_writel(CPUState *env, uint32_t addr, uint32_t val) |
1328 |
{ |
1329 |
IDEState *s = get_ide_interface(addr)->cur_drive; |
1330 |
uint8_t *p; |
1331 |
|
1332 |
p = s->data_ptr; |
1333 |
*(uint32_t *)p = tswap32(val); |
1334 |
p += 4;
|
1335 |
s->data_ptr = p; |
1336 |
if (p >= s->data_end)
|
1337 |
s->end_transfer_func(s); |
1338 |
} |
1339 |
|
1340 |
static uint32_t ide_data_readl(CPUState *env, uint32_t addr)
|
1341 |
{ |
1342 |
IDEState *s = get_ide_interface(addr)->cur_drive; |
1343 |
uint8_t *p; |
1344 |
int ret;
|
1345 |
|
1346 |
p = s->data_ptr; |
1347 |
ret = tswap32(*(uint32_t *)p); |
1348 |
p += 4;
|
1349 |
s->data_ptr = p; |
1350 |
if (p >= s->data_end)
|
1351 |
s->end_transfer_func(s); |
1352 |
return ret;
|
1353 |
} |
1354 |
|
1355 |
static void ide_reset(IDEState *s) |
1356 |
{ |
1357 |
s->mult_sectors = MAX_MULT_SECTORS; |
1358 |
s->cur_drive = s; |
1359 |
s->select = 0xa0;
|
1360 |
s->status = READY_STAT; |
1361 |
ide_set_signature(s); |
1362 |
} |
1363 |
|
1364 |
struct partition {
|
1365 |
uint8_t boot_ind; /* 0x80 - active */
|
1366 |
uint8_t head; /* starting head */
|
1367 |
uint8_t sector; /* starting sector */
|
1368 |
uint8_t cyl; /* starting cylinder */
|
1369 |
uint8_t sys_ind; /* What partition type */
|
1370 |
uint8_t end_head; /* end head */
|
1371 |
uint8_t end_sector; /* end sector */
|
1372 |
uint8_t end_cyl; /* end cylinder */
|
1373 |
uint32_t start_sect; /* starting sector counting from 0 */
|
1374 |
uint32_t nr_sects; /* nr of sectors in partition */
|
1375 |
} __attribute__((packed)); |
1376 |
|
1377 |
/* try to guess the IDE geometry from the MSDOS partition table */
|
1378 |
static void ide_guess_geometry(IDEState *s) |
1379 |
{ |
1380 |
uint8_t buf[512];
|
1381 |
int ret, i;
|
1382 |
struct partition *p;
|
1383 |
uint32_t nr_sects; |
1384 |
|
1385 |
if (s->cylinders != 0) |
1386 |
return;
|
1387 |
ret = bdrv_read(s->bs, 0, buf, 1); |
1388 |
if (ret < 0) |
1389 |
return;
|
1390 |
/* test msdos magic */
|
1391 |
if (buf[510] != 0x55 || buf[511] != 0xaa) |
1392 |
return;
|
1393 |
for(i = 0; i < 4; i++) { |
1394 |
p = ((struct partition *)(buf + 0x1be)) + i; |
1395 |
nr_sects = tswap32(p->nr_sects); |
1396 |
if (nr_sects && p->end_head) {
|
1397 |
/* We make the assumption that the partition terminates on
|
1398 |
a cylinder boundary */
|
1399 |
s->heads = p->end_head + 1;
|
1400 |
s->sectors = p->end_sector & 63;
|
1401 |
s->cylinders = s->nb_sectors / (s->heads * s->sectors); |
1402 |
#if 0
|
1403 |
printf("guessed partition: CHS=%d %d %d\n",
|
1404 |
s->cylinders, s->heads, s->sectors);
|
1405 |
#endif
|
1406 |
} |
1407 |
} |
1408 |
} |
1409 |
|
1410 |
void ide_init(void) |
1411 |
{ |
1412 |
IDEState *s; |
1413 |
int i, cylinders, iobase, iobase2;
|
1414 |
int64_t nb_sectors; |
1415 |
static const int ide_iobase[2] = { 0x1f0, 0x170 }; |
1416 |
static const int ide_iobase2[2] = { 0x3f6, 0x376 }; |
1417 |
static const int ide_irq[2] = { 14, 15 }; |
1418 |
|
1419 |
for(i = 0; i < MAX_DISKS; i++) { |
1420 |
s = &ide_state[i]; |
1421 |
s->bs = bs_table[i]; |
1422 |
if (s->bs) {
|
1423 |
bdrv_get_geometry(s->bs, &nb_sectors); |
1424 |
s->nb_sectors = nb_sectors; |
1425 |
ide_guess_geometry(s); |
1426 |
if (s->cylinders == 0) { |
1427 |
/* if no geometry, use a LBA compatible one */
|
1428 |
cylinders = nb_sectors / (16 * 63); |
1429 |
if (cylinders > 16383) |
1430 |
cylinders = 16383;
|
1431 |
else if (cylinders < 2) |
1432 |
cylinders = 2;
|
1433 |
s->cylinders = cylinders; |
1434 |
s->heads = 16;
|
1435 |
s->sectors = 63;
|
1436 |
} |
1437 |
} |
1438 |
s->irq = ide_irq[i >> 1];
|
1439 |
ide_reset(s); |
1440 |
} |
1441 |
for(i = 0; i < (MAX_DISKS / 2); i++) { |
1442 |
iobase = ide_iobase[i]; |
1443 |
iobase2 = ide_iobase2[i]; |
1444 |
ide_table[iobase >> 3] = &ide_state[2 * i]; |
1445 |
if (ide_iobase2[i])
|
1446 |
ide_table[iobase2 >> 3] = &ide_state[2 * i]; |
1447 |
register_ioport_write(iobase, 8, ide_ioport_write, 1); |
1448 |
register_ioport_read(iobase, 8, ide_ioport_read, 1); |
1449 |
register_ioport_read(iobase2, 1, ide_status_read, 1); |
1450 |
register_ioport_write(iobase2, 1, ide_cmd_write, 1); |
1451 |
|
1452 |
/* data ports */
|
1453 |
register_ioport_write(iobase, 2, ide_data_writew, 2); |
1454 |
register_ioport_read(iobase, 2, ide_data_readw, 2); |
1455 |
register_ioport_write(iobase, 4, ide_data_writel, 4); |
1456 |
register_ioport_read(iobase, 4, ide_data_readl, 4); |
1457 |
} |
1458 |
} |
1459 |
|
1460 |
void ide_set_geometry(int n, int cyls, int heads, int secs) |
1461 |
{ |
1462 |
ide_state[n].cylinders = cyls; |
1463 |
ide_state[n].heads = heads; |
1464 |
ide_state[n].sectors = secs; |
1465 |
} |
1466 |
|
1467 |
void ide_set_cdrom(int n, int is_cdrom) |
1468 |
{ |
1469 |
ide_state[n].is_cdrom = is_cdrom; |
1470 |
} |