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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 "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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//#define DEBUG_AIO
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#define USE_DMA_CDROM
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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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|
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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 16 |
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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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/* NOTE: IDEState represents in fact one drive */
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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 cylinders, heads, sectors;
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int64_t nb_sectors; |
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int mult_sectors;
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int identify_set;
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uint16_t identify_data[256];
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SetIRQFunc *set_irq; |
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void *irq_opaque;
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int irq;
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PCIDevice *pci_dev; |
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struct BMDMAState *bmdma;
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int drive_serial;
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/* ide regs */
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uint8_t feature; |
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uint8_t error; |
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uint32_t nsector; |
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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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/* other part of tf for lba48 support */
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uint8_t hob_feature; |
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uint8_t hob_nsector; |
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uint8_t hob_sector; |
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uint8_t hob_lcyl; |
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uint8_t hob_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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/* set for lba48 access */
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uint8_t lba48; |
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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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int cd_sector_size;
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int atapi_dma; /* true if dma is requested for the packet cmd */ |
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/* ATA DMA state */
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int io_buffer_size;
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/* PIO 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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QEMUTimer *sector_write_timer; /* only used for win2k instal hack */
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uint32_t irq_count; /* counts IRQs when using win2k install hack */
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} IDEState; |
353 |
|
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#define BM_STATUS_DMAING 0x01 |
355 |
#define BM_STATUS_ERROR 0x02 |
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#define BM_STATUS_INT 0x04 |
357 |
|
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#define BM_CMD_START 0x01 |
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#define BM_CMD_READ 0x08 |
360 |
|
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#define IDE_TYPE_PIIX3 0 |
362 |
#define IDE_TYPE_CMD646 1 |
363 |
|
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/* CMD646 specific */
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#define MRDMODE 0x71 |
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#define MRDMODE_INTR_CH0 0x04 |
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#define MRDMODE_INTR_CH1 0x08 |
368 |
#define MRDMODE_BLK_CH0 0x10 |
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#define MRDMODE_BLK_CH1 0x20 |
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#define UDIDETCR0 0x73 |
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#define UDIDETCR1 0x7B |
372 |
|
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typedef struct BMDMAState { |
374 |
uint8_t cmd; |
375 |
uint8_t status; |
376 |
uint32_t addr; |
377 |
|
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struct PCIIDEState *pci_dev;
|
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/* current transfer state */
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uint32_t cur_addr; |
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uint32_t cur_prd_last; |
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uint32_t cur_prd_addr; |
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uint32_t cur_prd_len; |
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IDEState *ide_if; |
385 |
BlockDriverCompletionFunc *dma_cb; |
386 |
BlockDriverAIOCB *aiocb; |
387 |
} BMDMAState; |
388 |
|
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typedef struct PCIIDEState { |
390 |
PCIDevice dev; |
391 |
IDEState ide_if[4];
|
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BMDMAState bmdma[2];
|
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int type; /* see IDE_TYPE_xxx */ |
394 |
} PCIIDEState; |
395 |
|
396 |
static void ide_dma_start(IDEState *s, BlockDriverCompletionFunc *dma_cb); |
397 |
|
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static void padstr(char *str, const char *src, int len) |
399 |
{ |
400 |
int i, v;
|
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for(i = 0; i < len; i++) { |
402 |
if (*src)
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v = *src++; |
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else
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v = ' ';
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*(char *)((long)str ^ 1) = v; |
407 |
str++; |
408 |
} |
409 |
} |
410 |
|
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static void padstr8(uint8_t *buf, int buf_size, const char *src) |
412 |
{ |
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int i;
|
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for(i = 0; i < buf_size; i++) { |
415 |
if (*src)
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buf[i] = *src++; |
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else
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buf[i] = ' ';
|
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} |
420 |
} |
421 |
|
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static void put_le16(uint16_t *p, unsigned int v) |
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{ |
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*p = cpu_to_le16(v); |
425 |
} |
426 |
|
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static void ide_identify(IDEState *s) |
428 |
{ |
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uint16_t *p; |
430 |
unsigned int oldsize; |
431 |
char buf[20]; |
432 |
|
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if (s->identify_set) {
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memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data));
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return;
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} |
437 |
|
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memset(s->io_buffer, 0, 512); |
439 |
p = (uint16_t *)s->io_buffer; |
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put_le16(p + 0, 0x0040); |
441 |
put_le16(p + 1, s->cylinders);
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put_le16(p + 3, s->heads);
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put_le16(p + 4, 512 * s->sectors); /* XXX: retired, remove ? */ |
444 |
put_le16(p + 5, 512); /* XXX: retired, remove ? */ |
445 |
put_le16(p + 6, s->sectors);
|
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snprintf(buf, sizeof(buf), "QM%05d", s->drive_serial); |
447 |
padstr((uint8_t *)(p + 10), buf, 20); /* serial number */ |
448 |
put_le16(p + 20, 3); /* XXX: retired, remove ? */ |
449 |
put_le16(p + 21, 512); /* cache size in sectors */ |
450 |
put_le16(p + 22, 4); /* ecc bytes */ |
451 |
padstr((uint8_t *)(p + 23), QEMU_VERSION, 8); /* firmware version */ |
452 |
padstr((uint8_t *)(p + 27), "QEMU HARDDISK", 40); /* model */ |
453 |
#if MAX_MULT_SECTORS > 1 |
454 |
put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS); |
455 |
#endif
|
456 |
put_le16(p + 48, 1); /* dword I/O */ |
457 |
put_le16(p + 49, (1 << 11) | (1 << 9) | (1 << 8)); /* DMA and LBA supported */ |
458 |
put_le16(p + 51, 0x200); /* PIO transfer cycle */ |
459 |
put_le16(p + 52, 0x200); /* DMA transfer cycle */ |
460 |
put_le16(p + 53, 1 | (1 << 1) | (1 << 2)); /* words 54-58,64-70,88 are valid */ |
461 |
put_le16(p + 54, s->cylinders);
|
462 |
put_le16(p + 55, s->heads);
|
463 |
put_le16(p + 56, s->sectors);
|
464 |
oldsize = s->cylinders * s->heads * s->sectors; |
465 |
put_le16(p + 57, oldsize);
|
466 |
put_le16(p + 58, oldsize >> 16); |
467 |
if (s->mult_sectors)
|
468 |
put_le16(p + 59, 0x100 | s->mult_sectors); |
469 |
put_le16(p + 60, s->nb_sectors);
|
470 |
put_le16(p + 61, s->nb_sectors >> 16); |
471 |
put_le16(p + 63, 0x07); /* mdma0-2 supported */ |
472 |
put_le16(p + 65, 120); |
473 |
put_le16(p + 66, 120); |
474 |
put_le16(p + 67, 120); |
475 |
put_le16(p + 68, 120); |
476 |
put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */ |
477 |
put_le16(p + 81, 0x16); /* conforms to ata5 */ |
478 |
put_le16(p + 82, (1 << 14)); |
479 |
/* 13=flush_cache_ext,12=flush_cache,10=lba48 */
|
480 |
put_le16(p + 83, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10)); |
481 |
put_le16(p + 84, (1 << 14)); |
482 |
put_le16(p + 85, (1 << 14)); |
483 |
/* 13=flush_cache_ext,12=flush_cache,10=lba48 */
|
484 |
put_le16(p + 86, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10)); |
485 |
put_le16(p + 87, (1 << 14)); |
486 |
put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */ |
487 |
put_le16(p + 93, 1 | (1 << 14) | 0x2000); |
488 |
put_le16(p + 100, s->nb_sectors);
|
489 |
put_le16(p + 101, s->nb_sectors >> 16); |
490 |
put_le16(p + 102, s->nb_sectors >> 32); |
491 |
put_le16(p + 103, s->nb_sectors >> 48); |
492 |
|
493 |
memcpy(s->identify_data, p, sizeof(s->identify_data));
|
494 |
s->identify_set = 1;
|
495 |
} |
496 |
|
497 |
static void ide_atapi_identify(IDEState *s) |
498 |
{ |
499 |
uint16_t *p; |
500 |
char buf[20]; |
501 |
|
502 |
if (s->identify_set) {
|
503 |
memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data));
|
504 |
return;
|
505 |
} |
506 |
|
507 |
memset(s->io_buffer, 0, 512); |
508 |
p = (uint16_t *)s->io_buffer; |
509 |
/* Removable CDROM, 50us response, 12 byte packets */
|
510 |
put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0)); |
511 |
snprintf(buf, sizeof(buf), "QM%05d", s->drive_serial); |
512 |
padstr((uint8_t *)(p + 10), buf, 20); /* serial number */ |
513 |
put_le16(p + 20, 3); /* buffer type */ |
514 |
put_le16(p + 21, 512); /* cache size in sectors */ |
515 |
put_le16(p + 22, 4); /* ecc bytes */ |
516 |
padstr((uint8_t *)(p + 23), QEMU_VERSION, 8); /* firmware version */ |
517 |
padstr((uint8_t *)(p + 27), "QEMU CD-ROM", 40); /* model */ |
518 |
put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */ |
519 |
#ifdef USE_DMA_CDROM
|
520 |
put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */ |
521 |
put_le16(p + 53, 7); /* words 64-70, 54-58, 88 valid */ |
522 |
put_le16(p + 63, 7); /* mdma0-2 supported */ |
523 |
put_le16(p + 64, 0x3f); /* PIO modes supported */ |
524 |
#else
|
525 |
put_le16(p + 49, 1 << 9); /* LBA supported, no DMA */ |
526 |
put_le16(p + 53, 3); /* words 64-70, 54-58 valid */ |
527 |
put_le16(p + 63, 0x103); /* DMA modes XXX: may be incorrect */ |
528 |
put_le16(p + 64, 1); /* PIO modes */ |
529 |
#endif
|
530 |
put_le16(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */ |
531 |
put_le16(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */ |
532 |
put_le16(p + 67, 0x12c); /* minimum PIO cycle time without flow control */ |
533 |
put_le16(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */ |
534 |
|
535 |
put_le16(p + 71, 30); /* in ns */ |
536 |
put_le16(p + 72, 30); /* in ns */ |
537 |
|
538 |
put_le16(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */ |
539 |
#ifdef USE_DMA_CDROM
|
540 |
put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */ |
541 |
#endif
|
542 |
memcpy(s->identify_data, p, sizeof(s->identify_data));
|
543 |
s->identify_set = 1;
|
544 |
} |
545 |
|
546 |
static void ide_set_signature(IDEState *s) |
547 |
{ |
548 |
s->select &= 0xf0; /* clear head */ |
549 |
/* put signature */
|
550 |
s->nsector = 1;
|
551 |
s->sector = 1;
|
552 |
if (s->is_cdrom) {
|
553 |
s->lcyl = 0x14;
|
554 |
s->hcyl = 0xeb;
|
555 |
} else if (s->bs) { |
556 |
s->lcyl = 0;
|
557 |
s->hcyl = 0;
|
558 |
} else {
|
559 |
s->lcyl = 0xff;
|
560 |
s->hcyl = 0xff;
|
561 |
} |
562 |
} |
563 |
|
564 |
static inline void ide_abort_command(IDEState *s) |
565 |
{ |
566 |
s->status = READY_STAT | ERR_STAT; |
567 |
s->error = ABRT_ERR; |
568 |
} |
569 |
|
570 |
static inline void ide_set_irq(IDEState *s) |
571 |
{ |
572 |
BMDMAState *bm = s->bmdma; |
573 |
if (!(s->cmd & IDE_CMD_DISABLE_IRQ)) {
|
574 |
if (bm) {
|
575 |
bm->status |= BM_STATUS_INT; |
576 |
} |
577 |
s->set_irq(s->irq_opaque, s->irq, 1);
|
578 |
} |
579 |
} |
580 |
|
581 |
/* prepare data transfer and tell what to do after */
|
582 |
static void ide_transfer_start(IDEState *s, uint8_t *buf, int size, |
583 |
EndTransferFunc *end_transfer_func) |
584 |
{ |
585 |
s->end_transfer_func = end_transfer_func; |
586 |
s->data_ptr = buf; |
587 |
s->data_end = buf + size; |
588 |
s->status |= DRQ_STAT; |
589 |
} |
590 |
|
591 |
static void ide_transfer_stop(IDEState *s) |
592 |
{ |
593 |
s->end_transfer_func = ide_transfer_stop; |
594 |
s->data_ptr = s->io_buffer; |
595 |
s->data_end = s->io_buffer; |
596 |
s->status &= ~DRQ_STAT; |
597 |
} |
598 |
|
599 |
static int64_t ide_get_sector(IDEState *s)
|
600 |
{ |
601 |
int64_t sector_num; |
602 |
if (s->select & 0x40) { |
603 |
/* lba */
|
604 |
if (!s->lba48) {
|
605 |
sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) | |
606 |
(s->lcyl << 8) | s->sector;
|
607 |
} else {
|
608 |
sector_num = ((int64_t)s->hob_hcyl << 40) |
|
609 |
((int64_t) s->hob_lcyl << 32) |
|
610 |
((int64_t) s->hob_sector << 24) |
|
611 |
((int64_t) s->hcyl << 16) |
|
612 |
((int64_t) s->lcyl << 8) | s->sector;
|
613 |
} |
614 |
} else {
|
615 |
sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
|
616 |
(s->select & 0x0f) * s->sectors + (s->sector - 1); |
617 |
} |
618 |
return sector_num;
|
619 |
} |
620 |
|
621 |
static void ide_set_sector(IDEState *s, int64_t sector_num) |
622 |
{ |
623 |
unsigned int cyl, r; |
624 |
if (s->select & 0x40) { |
625 |
if (!s->lba48) {
|
626 |
s->select = (s->select & 0xf0) | (sector_num >> 24); |
627 |
s->hcyl = (sector_num >> 16);
|
628 |
s->lcyl = (sector_num >> 8);
|
629 |
s->sector = (sector_num); |
630 |
} else {
|
631 |
s->sector = sector_num; |
632 |
s->lcyl = sector_num >> 8;
|
633 |
s->hcyl = sector_num >> 16;
|
634 |
s->hob_sector = sector_num >> 24;
|
635 |
s->hob_lcyl = sector_num >> 32;
|
636 |
s->hob_hcyl = sector_num >> 40;
|
637 |
} |
638 |
} else {
|
639 |
cyl = sector_num / (s->heads * s->sectors); |
640 |
r = sector_num % (s->heads * s->sectors); |
641 |
s->hcyl = cyl >> 8;
|
642 |
s->lcyl = cyl; |
643 |
s->select = (s->select & 0xf0) | ((r / s->sectors) & 0x0f); |
644 |
s->sector = (r % s->sectors) + 1;
|
645 |
} |
646 |
} |
647 |
|
648 |
static void ide_sector_read(IDEState *s) |
649 |
{ |
650 |
int64_t sector_num; |
651 |
int ret, n;
|
652 |
|
653 |
s->status = READY_STAT | SEEK_STAT; |
654 |
s->error = 0; /* not needed by IDE spec, but needed by Windows */ |
655 |
sector_num = ide_get_sector(s); |
656 |
n = s->nsector; |
657 |
if (n == 0) { |
658 |
/* no more sector to read from disk */
|
659 |
ide_transfer_stop(s); |
660 |
} else {
|
661 |
#if defined(DEBUG_IDE)
|
662 |
printf("read sector=%Ld\n", sector_num);
|
663 |
#endif
|
664 |
if (n > s->req_nb_sectors)
|
665 |
n = s->req_nb_sectors; |
666 |
ret = bdrv_read(s->bs, sector_num, s->io_buffer, n); |
667 |
ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_read);
|
668 |
ide_set_irq(s); |
669 |
ide_set_sector(s, sector_num + n); |
670 |
s->nsector -= n; |
671 |
} |
672 |
} |
673 |
|
674 |
/* return 0 if buffer completed */
|
675 |
static int dma_buf_rw(BMDMAState *bm, int is_write) |
676 |
{ |
677 |
IDEState *s = bm->ide_if; |
678 |
struct {
|
679 |
uint32_t addr; |
680 |
uint32_t size; |
681 |
} prd; |
682 |
int l, len;
|
683 |
|
684 |
for(;;) {
|
685 |
l = s->io_buffer_size - s->io_buffer_index; |
686 |
if (l <= 0) |
687 |
break;
|
688 |
if (bm->cur_prd_len == 0) { |
689 |
/* end of table (with a fail safe of one page) */
|
690 |
if (bm->cur_prd_last ||
|
691 |
(bm->cur_addr - bm->addr) >= 4096)
|
692 |
return 0; |
693 |
cpu_physical_memory_read(bm->cur_addr, (uint8_t *)&prd, 8);
|
694 |
bm->cur_addr += 8;
|
695 |
prd.addr = le32_to_cpu(prd.addr); |
696 |
prd.size = le32_to_cpu(prd.size); |
697 |
len = prd.size & 0xfffe;
|
698 |
if (len == 0) |
699 |
len = 0x10000;
|
700 |
bm->cur_prd_len = len; |
701 |
bm->cur_prd_addr = prd.addr; |
702 |
bm->cur_prd_last = (prd.size & 0x80000000);
|
703 |
} |
704 |
if (l > bm->cur_prd_len)
|
705 |
l = bm->cur_prd_len; |
706 |
if (l > 0) { |
707 |
if (is_write) {
|
708 |
cpu_physical_memory_write(bm->cur_prd_addr, |
709 |
s->io_buffer + s->io_buffer_index, l); |
710 |
} else {
|
711 |
cpu_physical_memory_read(bm->cur_prd_addr, |
712 |
s->io_buffer + s->io_buffer_index, l); |
713 |
} |
714 |
bm->cur_prd_addr += l; |
715 |
bm->cur_prd_len -= l; |
716 |
s->io_buffer_index += l; |
717 |
} |
718 |
} |
719 |
return 1; |
720 |
} |
721 |
|
722 |
/* XXX: handle errors */
|
723 |
static void ide_read_dma_cb(void *opaque, int ret) |
724 |
{ |
725 |
BMDMAState *bm = opaque; |
726 |
IDEState *s = bm->ide_if; |
727 |
int n;
|
728 |
int64_t sector_num; |
729 |
|
730 |
n = s->io_buffer_size >> 9;
|
731 |
sector_num = ide_get_sector(s); |
732 |
if (n > 0) { |
733 |
sector_num += n; |
734 |
ide_set_sector(s, sector_num); |
735 |
s->nsector -= n; |
736 |
if (dma_buf_rw(bm, 1) == 0) |
737 |
goto eot;
|
738 |
} |
739 |
|
740 |
/* end of transfer ? */
|
741 |
if (s->nsector == 0) { |
742 |
s->status = READY_STAT | SEEK_STAT; |
743 |
ide_set_irq(s); |
744 |
eot:
|
745 |
bm->status &= ~BM_STATUS_DMAING; |
746 |
bm->status |= BM_STATUS_INT; |
747 |
bm->dma_cb = NULL;
|
748 |
bm->ide_if = NULL;
|
749 |
bm->aiocb = NULL;
|
750 |
return;
|
751 |
} |
752 |
|
753 |
/* launch next transfer */
|
754 |
n = s->nsector; |
755 |
if (n > MAX_MULT_SECTORS)
|
756 |
n = MAX_MULT_SECTORS; |
757 |
s->io_buffer_index = 0;
|
758 |
s->io_buffer_size = n * 512;
|
759 |
#ifdef DEBUG_AIO
|
760 |
printf("aio_read: sector_num=%lld n=%d\n", sector_num, n);
|
761 |
#endif
|
762 |
bm->aiocb = bdrv_aio_read(s->bs, sector_num, s->io_buffer, n, |
763 |
ide_read_dma_cb, bm); |
764 |
} |
765 |
|
766 |
static void ide_sector_read_dma(IDEState *s) |
767 |
{ |
768 |
s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT; |
769 |
s->io_buffer_index = 0;
|
770 |
s->io_buffer_size = 0;
|
771 |
ide_dma_start(s, ide_read_dma_cb); |
772 |
} |
773 |
|
774 |
static void ide_sector_write_timer_cb(void *opaque) |
775 |
{ |
776 |
IDEState *s = opaque; |
777 |
ide_set_irq(s); |
778 |
} |
779 |
|
780 |
static void ide_sector_write(IDEState *s) |
781 |
{ |
782 |
int64_t sector_num; |
783 |
int ret, n, n1;
|
784 |
|
785 |
s->status = READY_STAT | SEEK_STAT; |
786 |
sector_num = ide_get_sector(s); |
787 |
#if defined(DEBUG_IDE)
|
788 |
printf("write sector=%Ld\n", sector_num);
|
789 |
#endif
|
790 |
n = s->nsector; |
791 |
if (n > s->req_nb_sectors)
|
792 |
n = s->req_nb_sectors; |
793 |
ret = bdrv_write(s->bs, sector_num, s->io_buffer, n); |
794 |
s->nsector -= n; |
795 |
if (s->nsector == 0) { |
796 |
/* no more sector to write */
|
797 |
ide_transfer_stop(s); |
798 |
} else {
|
799 |
n1 = s->nsector; |
800 |
if (n1 > s->req_nb_sectors)
|
801 |
n1 = s->req_nb_sectors; |
802 |
ide_transfer_start(s, s->io_buffer, 512 * n1, ide_sector_write);
|
803 |
} |
804 |
ide_set_sector(s, sector_num + n); |
805 |
|
806 |
#ifdef TARGET_I386
|
807 |
if (win2k_install_hack && ((++s->irq_count % 16) == 0)) { |
808 |
/* It seems there is a bug in the Windows 2000 installer HDD
|
809 |
IDE driver which fills the disk with empty logs when the
|
810 |
IDE write IRQ comes too early. This hack tries to correct
|
811 |
that at the expense of slower write performances. Use this
|
812 |
option _only_ to install Windows 2000. You must disable it
|
813 |
for normal use. */
|
814 |
qemu_mod_timer(s->sector_write_timer, |
815 |
qemu_get_clock(vm_clock) + (ticks_per_sec / 1000));
|
816 |
} else
|
817 |
#endif
|
818 |
{ |
819 |
ide_set_irq(s); |
820 |
} |
821 |
} |
822 |
|
823 |
/* XXX: handle errors */
|
824 |
static void ide_write_dma_cb(void *opaque, int ret) |
825 |
{ |
826 |
BMDMAState *bm = opaque; |
827 |
IDEState *s = bm->ide_if; |
828 |
int n;
|
829 |
int64_t sector_num; |
830 |
|
831 |
n = s->io_buffer_size >> 9;
|
832 |
sector_num = ide_get_sector(s); |
833 |
if (n > 0) { |
834 |
sector_num += n; |
835 |
ide_set_sector(s, sector_num); |
836 |
s->nsector -= n; |
837 |
} |
838 |
|
839 |
/* end of transfer ? */
|
840 |
if (s->nsector == 0) { |
841 |
s->status = READY_STAT | SEEK_STAT; |
842 |
ide_set_irq(s); |
843 |
eot:
|
844 |
bm->status &= ~BM_STATUS_DMAING; |
845 |
bm->status |= BM_STATUS_INT; |
846 |
bm->dma_cb = NULL;
|
847 |
bm->ide_if = NULL;
|
848 |
bm->aiocb = NULL;
|
849 |
return;
|
850 |
} |
851 |
|
852 |
/* launch next transfer */
|
853 |
n = s->nsector; |
854 |
if (n > MAX_MULT_SECTORS)
|
855 |
n = MAX_MULT_SECTORS; |
856 |
s->io_buffer_index = 0;
|
857 |
s->io_buffer_size = n * 512;
|
858 |
|
859 |
if (dma_buf_rw(bm, 0) == 0) |
860 |
goto eot;
|
861 |
#ifdef DEBUG_AIO
|
862 |
printf("aio_write: sector_num=%lld n=%d\n", sector_num, n);
|
863 |
#endif
|
864 |
bm->aiocb = bdrv_aio_write(s->bs, sector_num, s->io_buffer, n, |
865 |
ide_write_dma_cb, bm); |
866 |
} |
867 |
|
868 |
static void ide_sector_write_dma(IDEState *s) |
869 |
{ |
870 |
s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT; |
871 |
s->io_buffer_index = 0;
|
872 |
s->io_buffer_size = 0;
|
873 |
ide_dma_start(s, ide_write_dma_cb); |
874 |
} |
875 |
|
876 |
static void ide_atapi_cmd_ok(IDEState *s) |
877 |
{ |
878 |
s->error = 0;
|
879 |
s->status = READY_STAT; |
880 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
881 |
ide_set_irq(s); |
882 |
} |
883 |
|
884 |
static void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc) |
885 |
{ |
886 |
#ifdef DEBUG_IDE_ATAPI
|
887 |
printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key, asc);
|
888 |
#endif
|
889 |
s->error = sense_key << 4;
|
890 |
s->status = READY_STAT | ERR_STAT; |
891 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
892 |
s->sense_key = sense_key; |
893 |
s->asc = asc; |
894 |
ide_set_irq(s); |
895 |
} |
896 |
|
897 |
static inline void cpu_to_ube16(uint8_t *buf, int val) |
898 |
{ |
899 |
buf[0] = val >> 8; |
900 |
buf[1] = val;
|
901 |
} |
902 |
|
903 |
static inline void cpu_to_ube32(uint8_t *buf, unsigned int val) |
904 |
{ |
905 |
buf[0] = val >> 24; |
906 |
buf[1] = val >> 16; |
907 |
buf[2] = val >> 8; |
908 |
buf[3] = val;
|
909 |
} |
910 |
|
911 |
static inline int ube16_to_cpu(const uint8_t *buf) |
912 |
{ |
913 |
return (buf[0] << 8) | buf[1]; |
914 |
} |
915 |
|
916 |
static inline int ube32_to_cpu(const uint8_t *buf) |
917 |
{ |
918 |
return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; |
919 |
} |
920 |
|
921 |
static void lba_to_msf(uint8_t *buf, int lba) |
922 |
{ |
923 |
lba += 150;
|
924 |
buf[0] = (lba / 75) / 60; |
925 |
buf[1] = (lba / 75) % 60; |
926 |
buf[2] = lba % 75; |
927 |
} |
928 |
|
929 |
static void cd_data_to_raw(uint8_t *buf, int lba) |
930 |
{ |
931 |
/* sync bytes */
|
932 |
buf[0] = 0x00; |
933 |
memset(buf + 1, 0xff, 10); |
934 |
buf[11] = 0x00; |
935 |
buf += 12;
|
936 |
/* MSF */
|
937 |
lba_to_msf(buf, lba); |
938 |
buf[3] = 0x01; /* mode 1 data */ |
939 |
buf += 4;
|
940 |
/* data */
|
941 |
buf += 2048;
|
942 |
/* XXX: ECC not computed */
|
943 |
memset(buf, 0, 288); |
944 |
} |
945 |
|
946 |
static int cd_read_sector(BlockDriverState *bs, int lba, uint8_t *buf, |
947 |
int sector_size)
|
948 |
{ |
949 |
int ret;
|
950 |
|
951 |
switch(sector_size) {
|
952 |
case 2048: |
953 |
ret = bdrv_read(bs, (int64_t)lba << 2, buf, 4); |
954 |
break;
|
955 |
case 2352: |
956 |
ret = bdrv_read(bs, (int64_t)lba << 2, buf + 16, 4); |
957 |
if (ret < 0) |
958 |
return ret;
|
959 |
cd_data_to_raw(buf, lba); |
960 |
break;
|
961 |
default:
|
962 |
ret = -EIO; |
963 |
break;
|
964 |
} |
965 |
return ret;
|
966 |
} |
967 |
|
968 |
static void ide_atapi_io_error(IDEState *s, int ret) |
969 |
{ |
970 |
/* XXX: handle more errors */
|
971 |
if (ret == -ENOMEDIUM) {
|
972 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
973 |
ASC_MEDIUM_NOT_PRESENT); |
974 |
} else {
|
975 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
976 |
ASC_LOGICAL_BLOCK_OOR); |
977 |
} |
978 |
} |
979 |
|
980 |
/* The whole ATAPI transfer logic is handled in this function */
|
981 |
static void ide_atapi_cmd_reply_end(IDEState *s) |
982 |
{ |
983 |
int byte_count_limit, size, ret;
|
984 |
#ifdef DEBUG_IDE_ATAPI
|
985 |
printf("reply: tx_size=%d elem_tx_size=%d index=%d\n",
|
986 |
s->packet_transfer_size, |
987 |
s->elementary_transfer_size, |
988 |
s->io_buffer_index); |
989 |
#endif
|
990 |
if (s->packet_transfer_size <= 0) { |
991 |
/* end of transfer */
|
992 |
ide_transfer_stop(s); |
993 |
s->status = READY_STAT; |
994 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
995 |
ide_set_irq(s); |
996 |
#ifdef DEBUG_IDE_ATAPI
|
997 |
printf("status=0x%x\n", s->status);
|
998 |
#endif
|
999 |
} else {
|
1000 |
/* see if a new sector must be read */
|
1001 |
if (s->lba != -1 && s->io_buffer_index >= s->cd_sector_size) { |
1002 |
ret = cd_read_sector(s->bs, s->lba, s->io_buffer, s->cd_sector_size); |
1003 |
if (ret < 0) { |
1004 |
ide_transfer_stop(s); |
1005 |
ide_atapi_io_error(s, ret); |
1006 |
return;
|
1007 |
} |
1008 |
s->lba++; |
1009 |
s->io_buffer_index = 0;
|
1010 |
} |
1011 |
if (s->elementary_transfer_size > 0) { |
1012 |
/* there are some data left to transmit in this elementary
|
1013 |
transfer */
|
1014 |
size = s->cd_sector_size - s->io_buffer_index; |
1015 |
if (size > s->elementary_transfer_size)
|
1016 |
size = s->elementary_transfer_size; |
1017 |
ide_transfer_start(s, s->io_buffer + s->io_buffer_index, |
1018 |
size, ide_atapi_cmd_reply_end); |
1019 |
s->packet_transfer_size -= size; |
1020 |
s->elementary_transfer_size -= size; |
1021 |
s->io_buffer_index += size; |
1022 |
} else {
|
1023 |
/* a new transfer is needed */
|
1024 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO;
|
1025 |
byte_count_limit = s->lcyl | (s->hcyl << 8);
|
1026 |
#ifdef DEBUG_IDE_ATAPI
|
1027 |
printf("byte_count_limit=%d\n", byte_count_limit);
|
1028 |
#endif
|
1029 |
if (byte_count_limit == 0xffff) |
1030 |
byte_count_limit--; |
1031 |
size = s->packet_transfer_size; |
1032 |
if (size > byte_count_limit) {
|
1033 |
/* byte count limit must be even if this case */
|
1034 |
if (byte_count_limit & 1) |
1035 |
byte_count_limit--; |
1036 |
size = byte_count_limit; |
1037 |
} |
1038 |
s->lcyl = size; |
1039 |
s->hcyl = size >> 8;
|
1040 |
s->elementary_transfer_size = size; |
1041 |
/* we cannot transmit more than one sector at a time */
|
1042 |
if (s->lba != -1) { |
1043 |
if (size > (s->cd_sector_size - s->io_buffer_index))
|
1044 |
size = (s->cd_sector_size - s->io_buffer_index); |
1045 |
} |
1046 |
ide_transfer_start(s, s->io_buffer + s->io_buffer_index, |
1047 |
size, ide_atapi_cmd_reply_end); |
1048 |
s->packet_transfer_size -= size; |
1049 |
s->elementary_transfer_size -= size; |
1050 |
s->io_buffer_index += size; |
1051 |
ide_set_irq(s); |
1052 |
#ifdef DEBUG_IDE_ATAPI
|
1053 |
printf("status=0x%x\n", s->status);
|
1054 |
#endif
|
1055 |
} |
1056 |
} |
1057 |
} |
1058 |
|
1059 |
/* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
|
1060 |
static void ide_atapi_cmd_reply(IDEState *s, int size, int max_size) |
1061 |
{ |
1062 |
if (size > max_size)
|
1063 |
size = max_size; |
1064 |
s->lba = -1; /* no sector read */ |
1065 |
s->packet_transfer_size = size; |
1066 |
s->elementary_transfer_size = 0;
|
1067 |
s->io_buffer_index = 0;
|
1068 |
|
1069 |
s->status = READY_STAT; |
1070 |
ide_atapi_cmd_reply_end(s); |
1071 |
} |
1072 |
|
1073 |
/* start a CD-CDROM read command */
|
1074 |
static void ide_atapi_cmd_read_pio(IDEState *s, int lba, int nb_sectors, |
1075 |
int sector_size)
|
1076 |
{ |
1077 |
s->lba = lba; |
1078 |
s->packet_transfer_size = nb_sectors * sector_size; |
1079 |
s->elementary_transfer_size = 0;
|
1080 |
s->io_buffer_index = sector_size; |
1081 |
s->cd_sector_size = sector_size; |
1082 |
|
1083 |
s->status = READY_STAT; |
1084 |
ide_atapi_cmd_reply_end(s); |
1085 |
} |
1086 |
|
1087 |
/* ATAPI DMA support */
|
1088 |
|
1089 |
/* XXX: handle read errors */
|
1090 |
static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret) |
1091 |
{ |
1092 |
BMDMAState *bm = opaque; |
1093 |
IDEState *s = bm->ide_if; |
1094 |
int data_offset, n;
|
1095 |
|
1096 |
if (ret < 0) { |
1097 |
ide_atapi_io_error(s, ret); |
1098 |
goto eot;
|
1099 |
} |
1100 |
|
1101 |
if (s->io_buffer_size > 0) { |
1102 |
if (s->cd_sector_size == 2352) { |
1103 |
n = 1;
|
1104 |
cd_data_to_raw(s->io_buffer, s->lba); |
1105 |
} else {
|
1106 |
n = s->io_buffer_size >> 11;
|
1107 |
} |
1108 |
s->packet_transfer_size -= s->io_buffer_size; |
1109 |
s->lba += n; |
1110 |
if (dma_buf_rw(bm, 1) == 0) |
1111 |
goto eot;
|
1112 |
} |
1113 |
|
1114 |
if (s->packet_transfer_size <= 0) { |
1115 |
s->status = READY_STAT; |
1116 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
1117 |
ide_set_irq(s); |
1118 |
eot:
|
1119 |
bm->status &= ~BM_STATUS_DMAING; |
1120 |
bm->status |= BM_STATUS_INT; |
1121 |
bm->dma_cb = NULL;
|
1122 |
bm->ide_if = NULL;
|
1123 |
bm->aiocb = NULL;
|
1124 |
return;
|
1125 |
} |
1126 |
|
1127 |
s->io_buffer_index = 0;
|
1128 |
if (s->cd_sector_size == 2352) { |
1129 |
n = 1;
|
1130 |
s->io_buffer_size = s->cd_sector_size; |
1131 |
data_offset = 16;
|
1132 |
} else {
|
1133 |
n = s->packet_transfer_size >> 11;
|
1134 |
if (n > (MAX_MULT_SECTORS / 4)) |
1135 |
n = (MAX_MULT_SECTORS / 4);
|
1136 |
s->io_buffer_size = n * 2048;
|
1137 |
data_offset = 0;
|
1138 |
} |
1139 |
#ifdef DEBUG_AIO
|
1140 |
printf("aio_read_cd: lba=%u n=%d\n", s->lba, n);
|
1141 |
#endif
|
1142 |
bm->aiocb = bdrv_aio_read(s->bs, (int64_t)s->lba << 2,
|
1143 |
s->io_buffer + data_offset, n * 4,
|
1144 |
ide_atapi_cmd_read_dma_cb, bm); |
1145 |
if (!bm->aiocb) {
|
1146 |
/* Note: media not present is the most likely case */
|
1147 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
1148 |
ASC_MEDIUM_NOT_PRESENT); |
1149 |
goto eot;
|
1150 |
} |
1151 |
} |
1152 |
|
1153 |
/* start a CD-CDROM read command with DMA */
|
1154 |
/* XXX: test if DMA is available */
|
1155 |
static void ide_atapi_cmd_read_dma(IDEState *s, int lba, int nb_sectors, |
1156 |
int sector_size)
|
1157 |
{ |
1158 |
s->lba = lba; |
1159 |
s->packet_transfer_size = nb_sectors * sector_size; |
1160 |
s->io_buffer_index = 0;
|
1161 |
s->io_buffer_size = 0;
|
1162 |
s->cd_sector_size = sector_size; |
1163 |
|
1164 |
/* XXX: check if BUSY_STAT should be set */
|
1165 |
s->status = READY_STAT | DRQ_STAT | BUSY_STAT; |
1166 |
ide_dma_start(s, ide_atapi_cmd_read_dma_cb); |
1167 |
} |
1168 |
|
1169 |
static void ide_atapi_cmd_read(IDEState *s, int lba, int nb_sectors, |
1170 |
int sector_size)
|
1171 |
{ |
1172 |
#ifdef DEBUG_IDE_ATAPI
|
1173 |
printf("read: LBA=%d nb_sectors=%d\n", lba, nb_sectors);
|
1174 |
#endif
|
1175 |
if (s->atapi_dma) {
|
1176 |
ide_atapi_cmd_read_dma(s, lba, nb_sectors, sector_size); |
1177 |
} else {
|
1178 |
ide_atapi_cmd_read_pio(s, lba, nb_sectors, sector_size); |
1179 |
} |
1180 |
} |
1181 |
|
1182 |
static void ide_atapi_cmd(IDEState *s) |
1183 |
{ |
1184 |
const uint8_t *packet;
|
1185 |
uint8_t *buf; |
1186 |
int max_len;
|
1187 |
|
1188 |
packet = s->io_buffer; |
1189 |
buf = s->io_buffer; |
1190 |
#ifdef DEBUG_IDE_ATAPI
|
1191 |
{ |
1192 |
int i;
|
1193 |
printf("ATAPI limit=0x%x packet:", s->lcyl | (s->hcyl << 8)); |
1194 |
for(i = 0; i < ATAPI_PACKET_SIZE; i++) { |
1195 |
printf(" %02x", packet[i]);
|
1196 |
} |
1197 |
printf("\n");
|
1198 |
} |
1199 |
#endif
|
1200 |
switch(s->io_buffer[0]) { |
1201 |
case GPCMD_TEST_UNIT_READY:
|
1202 |
if (bdrv_is_inserted(s->bs)) {
|
1203 |
ide_atapi_cmd_ok(s); |
1204 |
} else {
|
1205 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
1206 |
ASC_MEDIUM_NOT_PRESENT); |
1207 |
} |
1208 |
break;
|
1209 |
case GPCMD_MODE_SENSE_10:
|
1210 |
{ |
1211 |
int action, code;
|
1212 |
max_len = ube16_to_cpu(packet + 7);
|
1213 |
action = packet[2] >> 6; |
1214 |
code = packet[2] & 0x3f; |
1215 |
switch(action) {
|
1216 |
case 0: /* current values */ |
1217 |
switch(code) {
|
1218 |
case 0x01: /* error recovery */ |
1219 |
cpu_to_ube16(&buf[0], 16 + 6); |
1220 |
buf[2] = 0x70; |
1221 |
buf[3] = 0; |
1222 |
buf[4] = 0; |
1223 |
buf[5] = 0; |
1224 |
buf[6] = 0; |
1225 |
buf[7] = 0; |
1226 |
|
1227 |
buf[8] = 0x01; |
1228 |
buf[9] = 0x06; |
1229 |
buf[10] = 0x00; |
1230 |
buf[11] = 0x05; |
1231 |
buf[12] = 0x00; |
1232 |
buf[13] = 0x00; |
1233 |
buf[14] = 0x00; |
1234 |
buf[15] = 0x00; |
1235 |
ide_atapi_cmd_reply(s, 16, max_len);
|
1236 |
break;
|
1237 |
case 0x2a: |
1238 |
cpu_to_ube16(&buf[0], 28 + 6); |
1239 |
buf[2] = 0x70; |
1240 |
buf[3] = 0; |
1241 |
buf[4] = 0; |
1242 |
buf[5] = 0; |
1243 |
buf[6] = 0; |
1244 |
buf[7] = 0; |
1245 |
|
1246 |
buf[8] = 0x2a; |
1247 |
buf[9] = 0x12; |
1248 |
buf[10] = 0x00; |
1249 |
buf[11] = 0x00; |
1250 |
|
1251 |
buf[12] = 0x70; |
1252 |
buf[13] = 3 << 5; |
1253 |
buf[14] = (1 << 0) | (1 << 3) | (1 << 5); |
1254 |
if (bdrv_is_locked(s->bs))
|
1255 |
buf[6] |= 1 << 1; |
1256 |
buf[15] = 0x00; |
1257 |
cpu_to_ube16(&buf[16], 706); |
1258 |
buf[18] = 0; |
1259 |
buf[19] = 2; |
1260 |
cpu_to_ube16(&buf[20], 512); |
1261 |
cpu_to_ube16(&buf[22], 706); |
1262 |
buf[24] = 0; |
1263 |
buf[25] = 0; |
1264 |
buf[26] = 0; |
1265 |
buf[27] = 0; |
1266 |
ide_atapi_cmd_reply(s, 28, max_len);
|
1267 |
break;
|
1268 |
default:
|
1269 |
goto error_cmd;
|
1270 |
} |
1271 |
break;
|
1272 |
case 1: /* changeable values */ |
1273 |
goto error_cmd;
|
1274 |
case 2: /* default values */ |
1275 |
goto error_cmd;
|
1276 |
default:
|
1277 |
case 3: /* saved values */ |
1278 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
1279 |
ASC_SAVING_PARAMETERS_NOT_SUPPORTED); |
1280 |
break;
|
1281 |
} |
1282 |
} |
1283 |
break;
|
1284 |
case GPCMD_REQUEST_SENSE:
|
1285 |
max_len = packet[4];
|
1286 |
memset(buf, 0, 18); |
1287 |
buf[0] = 0x70 | (1 << 7); |
1288 |
buf[2] = s->sense_key;
|
1289 |
buf[7] = 10; |
1290 |
buf[12] = s->asc;
|
1291 |
ide_atapi_cmd_reply(s, 18, max_len);
|
1292 |
break;
|
1293 |
case GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
|
1294 |
if (bdrv_is_inserted(s->bs)) {
|
1295 |
bdrv_set_locked(s->bs, packet[4] & 1); |
1296 |
ide_atapi_cmd_ok(s); |
1297 |
} else {
|
1298 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
1299 |
ASC_MEDIUM_NOT_PRESENT); |
1300 |
} |
1301 |
break;
|
1302 |
case GPCMD_READ_10:
|
1303 |
case GPCMD_READ_12:
|
1304 |
{ |
1305 |
int nb_sectors, lba;
|
1306 |
|
1307 |
if (packet[0] == GPCMD_READ_10) |
1308 |
nb_sectors = ube16_to_cpu(packet + 7);
|
1309 |
else
|
1310 |
nb_sectors = ube32_to_cpu(packet + 6);
|
1311 |
lba = ube32_to_cpu(packet + 2);
|
1312 |
if (nb_sectors == 0) { |
1313 |
ide_atapi_cmd_ok(s); |
1314 |
break;
|
1315 |
} |
1316 |
ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
|
1317 |
} |
1318 |
break;
|
1319 |
case GPCMD_READ_CD:
|
1320 |
{ |
1321 |
int nb_sectors, lba, transfer_request;
|
1322 |
|
1323 |
nb_sectors = (packet[6] << 16) | (packet[7] << 8) | packet[8]; |
1324 |
lba = ube32_to_cpu(packet + 2);
|
1325 |
if (nb_sectors == 0) { |
1326 |
ide_atapi_cmd_ok(s); |
1327 |
break;
|
1328 |
} |
1329 |
transfer_request = packet[9];
|
1330 |
switch(transfer_request & 0xf8) { |
1331 |
case 0x00: |
1332 |
/* nothing */
|
1333 |
ide_atapi_cmd_ok(s); |
1334 |
break;
|
1335 |
case 0x10: |
1336 |
/* normal read */
|
1337 |
ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
|
1338 |
break;
|
1339 |
case 0xf8: |
1340 |
/* read all data */
|
1341 |
ide_atapi_cmd_read(s, lba, nb_sectors, 2352);
|
1342 |
break;
|
1343 |
default:
|
1344 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
1345 |
ASC_INV_FIELD_IN_CMD_PACKET); |
1346 |
break;
|
1347 |
} |
1348 |
} |
1349 |
break;
|
1350 |
case GPCMD_SEEK:
|
1351 |
{ |
1352 |
int lba;
|
1353 |
int64_t total_sectors; |
1354 |
|
1355 |
bdrv_get_geometry(s->bs, &total_sectors); |
1356 |
total_sectors >>= 2;
|
1357 |
if (total_sectors <= 0) { |
1358 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
1359 |
ASC_MEDIUM_NOT_PRESENT); |
1360 |
break;
|
1361 |
} |
1362 |
lba = ube32_to_cpu(packet + 2);
|
1363 |
if (lba >= total_sectors) {
|
1364 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
1365 |
ASC_LOGICAL_BLOCK_OOR); |
1366 |
break;
|
1367 |
} |
1368 |
ide_atapi_cmd_ok(s); |
1369 |
} |
1370 |
break;
|
1371 |
case GPCMD_START_STOP_UNIT:
|
1372 |
{ |
1373 |
int start, eject;
|
1374 |
start = packet[4] & 1; |
1375 |
eject = (packet[4] >> 1) & 1; |
1376 |
|
1377 |
if (eject && !start) {
|
1378 |
/* eject the disk */
|
1379 |
bdrv_eject(s->bs, 1);
|
1380 |
} else if (eject && start) { |
1381 |
/* close the tray */
|
1382 |
bdrv_eject(s->bs, 0);
|
1383 |
} |
1384 |
ide_atapi_cmd_ok(s); |
1385 |
} |
1386 |
break;
|
1387 |
case GPCMD_MECHANISM_STATUS:
|
1388 |
{ |
1389 |
max_len = ube16_to_cpu(packet + 8);
|
1390 |
cpu_to_ube16(buf, 0);
|
1391 |
/* no current LBA */
|
1392 |
buf[2] = 0; |
1393 |
buf[3] = 0; |
1394 |
buf[4] = 0; |
1395 |
buf[5] = 1; |
1396 |
cpu_to_ube16(buf + 6, 0); |
1397 |
ide_atapi_cmd_reply(s, 8, max_len);
|
1398 |
} |
1399 |
break;
|
1400 |
case GPCMD_READ_TOC_PMA_ATIP:
|
1401 |
{ |
1402 |
int format, msf, start_track, len;
|
1403 |
int64_t total_sectors; |
1404 |
|
1405 |
bdrv_get_geometry(s->bs, &total_sectors); |
1406 |
total_sectors >>= 2;
|
1407 |
if (total_sectors <= 0) { |
1408 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
1409 |
ASC_MEDIUM_NOT_PRESENT); |
1410 |
break;
|
1411 |
} |
1412 |
max_len = ube16_to_cpu(packet + 7);
|
1413 |
format = packet[9] >> 6; |
1414 |
msf = (packet[1] >> 1) & 1; |
1415 |
start_track = packet[6];
|
1416 |
switch(format) {
|
1417 |
case 0: |
1418 |
len = cdrom_read_toc(total_sectors, buf, msf, start_track); |
1419 |
if (len < 0) |
1420 |
goto error_cmd;
|
1421 |
ide_atapi_cmd_reply(s, len, max_len); |
1422 |
break;
|
1423 |
case 1: |
1424 |
/* multi session : only a single session defined */
|
1425 |
memset(buf, 0, 12); |
1426 |
buf[1] = 0x0a; |
1427 |
buf[2] = 0x01; |
1428 |
buf[3] = 0x01; |
1429 |
ide_atapi_cmd_reply(s, 12, max_len);
|
1430 |
break;
|
1431 |
case 2: |
1432 |
len = cdrom_read_toc_raw(total_sectors, buf, msf, start_track); |
1433 |
if (len < 0) |
1434 |
goto error_cmd;
|
1435 |
ide_atapi_cmd_reply(s, len, max_len); |
1436 |
break;
|
1437 |
default:
|
1438 |
error_cmd:
|
1439 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
1440 |
ASC_INV_FIELD_IN_CMD_PACKET); |
1441 |
break;
|
1442 |
} |
1443 |
} |
1444 |
break;
|
1445 |
case GPCMD_READ_CDVD_CAPACITY:
|
1446 |
{ |
1447 |
int64_t total_sectors; |
1448 |
|
1449 |
bdrv_get_geometry(s->bs, &total_sectors); |
1450 |
total_sectors >>= 2;
|
1451 |
if (total_sectors <= 0) { |
1452 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
1453 |
ASC_MEDIUM_NOT_PRESENT); |
1454 |
break;
|
1455 |
} |
1456 |
/* NOTE: it is really the number of sectors minus 1 */
|
1457 |
cpu_to_ube32(buf, total_sectors - 1);
|
1458 |
cpu_to_ube32(buf + 4, 2048); |
1459 |
ide_atapi_cmd_reply(s, 8, 8); |
1460 |
} |
1461 |
break;
|
1462 |
case GPCMD_INQUIRY:
|
1463 |
max_len = packet[4];
|
1464 |
buf[0] = 0x05; /* CD-ROM */ |
1465 |
buf[1] = 0x80; /* removable */ |
1466 |
buf[2] = 0x00; /* ISO */ |
1467 |
buf[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */ |
1468 |
buf[4] = 31; /* additionnal length */ |
1469 |
buf[5] = 0; /* reserved */ |
1470 |
buf[6] = 0; /* reserved */ |
1471 |
buf[7] = 0; /* reserved */ |
1472 |
padstr8(buf + 8, 8, "QEMU"); |
1473 |
padstr8(buf + 16, 16, "QEMU CD-ROM"); |
1474 |
padstr8(buf + 32, 4, QEMU_VERSION); |
1475 |
ide_atapi_cmd_reply(s, 36, max_len);
|
1476 |
break;
|
1477 |
default:
|
1478 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
1479 |
ASC_ILLEGAL_OPCODE); |
1480 |
break;
|
1481 |
} |
1482 |
} |
1483 |
|
1484 |
static void ide_cmd_lba48_transform(IDEState *s, int lba48) |
1485 |
{ |
1486 |
s->lba48 = lba48; |
1487 |
|
1488 |
/* handle the 'magic' 0 nsector count conversion here. to avoid
|
1489 |
* fiddling with the rest of the read logic, we just store the
|
1490 |
* full sector count in ->nsector and ignore ->hob_nsector from now
|
1491 |
*/
|
1492 |
if (!s->lba48) {
|
1493 |
if (!s->nsector)
|
1494 |
s->nsector = 256;
|
1495 |
} else {
|
1496 |
if (!s->nsector && !s->hob_nsector)
|
1497 |
s->nsector = 65536;
|
1498 |
else {
|
1499 |
int lo = s->nsector;
|
1500 |
int hi = s->hob_nsector;
|
1501 |
|
1502 |
s->nsector = (hi << 8) | lo;
|
1503 |
} |
1504 |
} |
1505 |
} |
1506 |
|
1507 |
static void ide_clear_hob(IDEState *ide_if) |
1508 |
{ |
1509 |
/* any write clears HOB high bit of device control register */
|
1510 |
ide_if[0].select &= ~(1 << 7); |
1511 |
ide_if[1].select &= ~(1 << 7); |
1512 |
} |
1513 |
|
1514 |
static void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
1515 |
{ |
1516 |
IDEState *ide_if = opaque; |
1517 |
IDEState *s; |
1518 |
int unit, n;
|
1519 |
int lba48 = 0; |
1520 |
|
1521 |
#ifdef DEBUG_IDE
|
1522 |
printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
|
1523 |
#endif
|
1524 |
|
1525 |
addr &= 7;
|
1526 |
switch(addr) {
|
1527 |
case 0: |
1528 |
break;
|
1529 |
case 1: |
1530 |
ide_clear_hob(ide_if); |
1531 |
/* NOTE: data is written to the two drives */
|
1532 |
ide_if[0].hob_feature = ide_if[0].feature; |
1533 |
ide_if[1].hob_feature = ide_if[1].feature; |
1534 |
ide_if[0].feature = val;
|
1535 |
ide_if[1].feature = val;
|
1536 |
break;
|
1537 |
case 2: |
1538 |
ide_clear_hob(ide_if); |
1539 |
ide_if[0].hob_nsector = ide_if[0].nsector; |
1540 |
ide_if[1].hob_nsector = ide_if[1].nsector; |
1541 |
ide_if[0].nsector = val;
|
1542 |
ide_if[1].nsector = val;
|
1543 |
break;
|
1544 |
case 3: |
1545 |
ide_clear_hob(ide_if); |
1546 |
ide_if[0].hob_sector = ide_if[0].sector; |
1547 |
ide_if[1].hob_sector = ide_if[1].sector; |
1548 |
ide_if[0].sector = val;
|
1549 |
ide_if[1].sector = val;
|
1550 |
break;
|
1551 |
case 4: |
1552 |
ide_clear_hob(ide_if); |
1553 |
ide_if[0].hob_lcyl = ide_if[0].lcyl; |
1554 |
ide_if[1].hob_lcyl = ide_if[1].lcyl; |
1555 |
ide_if[0].lcyl = val;
|
1556 |
ide_if[1].lcyl = val;
|
1557 |
break;
|
1558 |
case 5: |
1559 |
ide_clear_hob(ide_if); |
1560 |
ide_if[0].hob_hcyl = ide_if[0].hcyl; |
1561 |
ide_if[1].hob_hcyl = ide_if[1].hcyl; |
1562 |
ide_if[0].hcyl = val;
|
1563 |
ide_if[1].hcyl = val;
|
1564 |
break;
|
1565 |
case 6: |
1566 |
/* FIXME: HOB readback uses bit 7 */
|
1567 |
ide_if[0].select = (val & ~0x10) | 0xa0; |
1568 |
ide_if[1].select = (val | 0x10) | 0xa0; |
1569 |
/* select drive */
|
1570 |
unit = (val >> 4) & 1; |
1571 |
s = ide_if + unit; |
1572 |
ide_if->cur_drive = s; |
1573 |
break;
|
1574 |
default:
|
1575 |
case 7: |
1576 |
/* command */
|
1577 |
#if defined(DEBUG_IDE)
|
1578 |
printf("ide: CMD=%02x\n", val);
|
1579 |
#endif
|
1580 |
s = ide_if->cur_drive; |
1581 |
/* ignore commands to non existant slave */
|
1582 |
if (s != ide_if && !s->bs)
|
1583 |
break;
|
1584 |
|
1585 |
switch(val) {
|
1586 |
case WIN_IDENTIFY:
|
1587 |
if (s->bs && !s->is_cdrom) {
|
1588 |
ide_identify(s); |
1589 |
s->status = READY_STAT | SEEK_STAT; |
1590 |
ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
|
1591 |
} else {
|
1592 |
if (s->is_cdrom) {
|
1593 |
ide_set_signature(s); |
1594 |
} |
1595 |
ide_abort_command(s); |
1596 |
} |
1597 |
ide_set_irq(s); |
1598 |
break;
|
1599 |
case WIN_SPECIFY:
|
1600 |
case WIN_RECAL:
|
1601 |
s->error = 0;
|
1602 |
s->status = READY_STAT | SEEK_STAT; |
1603 |
ide_set_irq(s); |
1604 |
break;
|
1605 |
case WIN_SETMULT:
|
1606 |
if (s->nsector > MAX_MULT_SECTORS ||
|
1607 |
s->nsector == 0 ||
|
1608 |
(s->nsector & (s->nsector - 1)) != 0) { |
1609 |
ide_abort_command(s); |
1610 |
} else {
|
1611 |
s->mult_sectors = s->nsector; |
1612 |
s->status = READY_STAT; |
1613 |
} |
1614 |
ide_set_irq(s); |
1615 |
break;
|
1616 |
case WIN_VERIFY_EXT:
|
1617 |
lba48 = 1;
|
1618 |
case WIN_VERIFY:
|
1619 |
case WIN_VERIFY_ONCE:
|
1620 |
/* do sector number check ? */
|
1621 |
ide_cmd_lba48_transform(s, lba48); |
1622 |
s->status = READY_STAT; |
1623 |
ide_set_irq(s); |
1624 |
break;
|
1625 |
case WIN_READ_EXT:
|
1626 |
lba48 = 1;
|
1627 |
case WIN_READ:
|
1628 |
case WIN_READ_ONCE:
|
1629 |
if (!s->bs)
|
1630 |
goto abort_cmd;
|
1631 |
ide_cmd_lba48_transform(s, lba48); |
1632 |
s->req_nb_sectors = 1;
|
1633 |
ide_sector_read(s); |
1634 |
break;
|
1635 |
case WIN_WRITE_EXT:
|
1636 |
lba48 = 1;
|
1637 |
case WIN_WRITE:
|
1638 |
case WIN_WRITE_ONCE:
|
1639 |
ide_cmd_lba48_transform(s, lba48); |
1640 |
s->error = 0;
|
1641 |
s->status = SEEK_STAT | READY_STAT; |
1642 |
s->req_nb_sectors = 1;
|
1643 |
ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
|
1644 |
break;
|
1645 |
case WIN_MULTREAD_EXT:
|
1646 |
lba48 = 1;
|
1647 |
case WIN_MULTREAD:
|
1648 |
if (!s->mult_sectors)
|
1649 |
goto abort_cmd;
|
1650 |
ide_cmd_lba48_transform(s, lba48); |
1651 |
s->req_nb_sectors = s->mult_sectors; |
1652 |
ide_sector_read(s); |
1653 |
break;
|
1654 |
case WIN_MULTWRITE_EXT:
|
1655 |
lba48 = 1;
|
1656 |
case WIN_MULTWRITE:
|
1657 |
if (!s->mult_sectors)
|
1658 |
goto abort_cmd;
|
1659 |
ide_cmd_lba48_transform(s, lba48); |
1660 |
s->error = 0;
|
1661 |
s->status = SEEK_STAT | READY_STAT; |
1662 |
s->req_nb_sectors = s->mult_sectors; |
1663 |
n = s->nsector; |
1664 |
if (n > s->req_nb_sectors)
|
1665 |
n = s->req_nb_sectors; |
1666 |
ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
|
1667 |
break;
|
1668 |
case WIN_READDMA_EXT:
|
1669 |
lba48 = 1;
|
1670 |
case WIN_READDMA:
|
1671 |
case WIN_READDMA_ONCE:
|
1672 |
if (!s->bs)
|
1673 |
goto abort_cmd;
|
1674 |
ide_cmd_lba48_transform(s, lba48); |
1675 |
ide_sector_read_dma(s); |
1676 |
break;
|
1677 |
case WIN_WRITEDMA_EXT:
|
1678 |
lba48 = 1;
|
1679 |
case WIN_WRITEDMA:
|
1680 |
case WIN_WRITEDMA_ONCE:
|
1681 |
if (!s->bs)
|
1682 |
goto abort_cmd;
|
1683 |
ide_cmd_lba48_transform(s, lba48); |
1684 |
ide_sector_write_dma(s); |
1685 |
break;
|
1686 |
case WIN_READ_NATIVE_MAX_EXT:
|
1687 |
lba48 = 1;
|
1688 |
case WIN_READ_NATIVE_MAX:
|
1689 |
ide_cmd_lba48_transform(s, lba48); |
1690 |
ide_set_sector(s, s->nb_sectors - 1);
|
1691 |
s->status = READY_STAT; |
1692 |
ide_set_irq(s); |
1693 |
break;
|
1694 |
case WIN_CHECKPOWERMODE1:
|
1695 |
s->nsector = 0xff; /* device active or idle */ |
1696 |
s->status = READY_STAT; |
1697 |
ide_set_irq(s); |
1698 |
break;
|
1699 |
case WIN_SETFEATURES:
|
1700 |
if (!s->bs)
|
1701 |
goto abort_cmd;
|
1702 |
/* XXX: valid for CDROM ? */
|
1703 |
switch(s->feature) {
|
1704 |
case 0x02: /* write cache enable */ |
1705 |
case 0x82: /* write cache disable */ |
1706 |
case 0xaa: /* read look-ahead enable */ |
1707 |
case 0x55: /* read look-ahead disable */ |
1708 |
s->status = READY_STAT | SEEK_STAT; |
1709 |
ide_set_irq(s); |
1710 |
break;
|
1711 |
case 0x03: { /* set transfer mode */ |
1712 |
uint8_t val = s->nsector & 0x07;
|
1713 |
|
1714 |
switch (s->nsector >> 3) { |
1715 |
case 0x00: /* pio default */ |
1716 |
case 0x01: /* pio mode */ |
1717 |
put_le16(s->identify_data + 63,0x07); |
1718 |
put_le16(s->identify_data + 88,0x3f); |
1719 |
break;
|
1720 |
case 0x04: /* mdma mode */ |
1721 |
put_le16(s->identify_data + 63,0x07 | (1 << (val + 8))); |
1722 |
put_le16(s->identify_data + 88,0x3f); |
1723 |
break;
|
1724 |
case 0x08: /* udma mode */ |
1725 |
put_le16(s->identify_data + 63,0x07); |
1726 |
put_le16(s->identify_data + 88,0x3f | (1 << (val + 8))); |
1727 |
break;
|
1728 |
default:
|
1729 |
goto abort_cmd;
|
1730 |
} |
1731 |
s->status = READY_STAT | SEEK_STAT; |
1732 |
ide_set_irq(s); |
1733 |
break;
|
1734 |
} |
1735 |
default:
|
1736 |
goto abort_cmd;
|
1737 |
} |
1738 |
break;
|
1739 |
case WIN_FLUSH_CACHE:
|
1740 |
case WIN_FLUSH_CACHE_EXT:
|
1741 |
if (s->bs)
|
1742 |
bdrv_flush(s->bs); |
1743 |
s->status = READY_STAT; |
1744 |
ide_set_irq(s); |
1745 |
break;
|
1746 |
case WIN_STANDBYNOW1:
|
1747 |
case WIN_IDLEIMMEDIATE:
|
1748 |
s->status = READY_STAT; |
1749 |
ide_set_irq(s); |
1750 |
break;
|
1751 |
/* ATAPI commands */
|
1752 |
case WIN_PIDENTIFY:
|
1753 |
if (s->is_cdrom) {
|
1754 |
ide_atapi_identify(s); |
1755 |
s->status = READY_STAT | SEEK_STAT; |
1756 |
ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
|
1757 |
} else {
|
1758 |
ide_abort_command(s); |
1759 |
} |
1760 |
ide_set_irq(s); |
1761 |
break;
|
1762 |
case WIN_DIAGNOSE:
|
1763 |
ide_set_signature(s); |
1764 |
s->status = 0x00; /* NOTE: READY is _not_ set */ |
1765 |
s->error = 0x01;
|
1766 |
break;
|
1767 |
case WIN_SRST:
|
1768 |
if (!s->is_cdrom)
|
1769 |
goto abort_cmd;
|
1770 |
ide_set_signature(s); |
1771 |
s->status = 0x00; /* NOTE: READY is _not_ set */ |
1772 |
s->error = 0x01;
|
1773 |
break;
|
1774 |
case WIN_PACKETCMD:
|
1775 |
if (!s->is_cdrom)
|
1776 |
goto abort_cmd;
|
1777 |
/* overlapping commands not supported */
|
1778 |
if (s->feature & 0x02) |
1779 |
goto abort_cmd;
|
1780 |
s->atapi_dma = s->feature & 1;
|
1781 |
s->nsector = 1;
|
1782 |
ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE, |
1783 |
ide_atapi_cmd); |
1784 |
break;
|
1785 |
default:
|
1786 |
abort_cmd:
|
1787 |
ide_abort_command(s); |
1788 |
ide_set_irq(s); |
1789 |
break;
|
1790 |
} |
1791 |
} |
1792 |
} |
1793 |
|
1794 |
static uint32_t ide_ioport_read(void *opaque, uint32_t addr1) |
1795 |
{ |
1796 |
IDEState *ide_if = opaque; |
1797 |
IDEState *s = ide_if->cur_drive; |
1798 |
uint32_t addr; |
1799 |
int ret, hob;
|
1800 |
|
1801 |
addr = addr1 & 7;
|
1802 |
/* FIXME: HOB readback uses bit 7, but it's always set right now */
|
1803 |
//hob = s->select & (1 << 7);
|
1804 |
hob = 0;
|
1805 |
switch(addr) {
|
1806 |
case 0: |
1807 |
ret = 0xff;
|
1808 |
break;
|
1809 |
case 1: |
1810 |
if (!ide_if[0].bs && !ide_if[1].bs) |
1811 |
ret = 0;
|
1812 |
else if (!hob) |
1813 |
ret = s->error; |
1814 |
else
|
1815 |
ret = s->hob_feature; |
1816 |
break;
|
1817 |
case 2: |
1818 |
if (!ide_if[0].bs && !ide_if[1].bs) |
1819 |
ret = 0;
|
1820 |
else if (!hob) |
1821 |
ret = s->nsector & 0xff;
|
1822 |
else
|
1823 |
ret = s->hob_nsector; |
1824 |
break;
|
1825 |
case 3: |
1826 |
if (!ide_if[0].bs && !ide_if[1].bs) |
1827 |
ret = 0;
|
1828 |
else if (!hob) |
1829 |
ret = s->sector; |
1830 |
else
|
1831 |
ret = s->hob_sector; |
1832 |
break;
|
1833 |
case 4: |
1834 |
if (!ide_if[0].bs && !ide_if[1].bs) |
1835 |
ret = 0;
|
1836 |
else if (!hob) |
1837 |
ret = s->lcyl; |
1838 |
else
|
1839 |
ret = s->hob_lcyl; |
1840 |
break;
|
1841 |
case 5: |
1842 |
if (!ide_if[0].bs && !ide_if[1].bs) |
1843 |
ret = 0;
|
1844 |
else if (!hob) |
1845 |
ret = s->hcyl; |
1846 |
else
|
1847 |
ret = s->hob_hcyl; |
1848 |
break;
|
1849 |
case 6: |
1850 |
if (!ide_if[0].bs && !ide_if[1].bs) |
1851 |
ret = 0;
|
1852 |
else
|
1853 |
ret = s->select; |
1854 |
break;
|
1855 |
default:
|
1856 |
case 7: |
1857 |
if ((!ide_if[0].bs && !ide_if[1].bs) || |
1858 |
(s != ide_if && !s->bs)) |
1859 |
ret = 0;
|
1860 |
else
|
1861 |
ret = s->status; |
1862 |
s->set_irq(s->irq_opaque, s->irq, 0);
|
1863 |
break;
|
1864 |
} |
1865 |
#ifdef DEBUG_IDE
|
1866 |
printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
|
1867 |
#endif
|
1868 |
return ret;
|
1869 |
} |
1870 |
|
1871 |
static uint32_t ide_status_read(void *opaque, uint32_t addr) |
1872 |
{ |
1873 |
IDEState *ide_if = opaque; |
1874 |
IDEState *s = ide_if->cur_drive; |
1875 |
int ret;
|
1876 |
|
1877 |
if ((!ide_if[0].bs && !ide_if[1].bs) || |
1878 |
(s != ide_if && !s->bs)) |
1879 |
ret = 0;
|
1880 |
else
|
1881 |
ret = s->status; |
1882 |
#ifdef DEBUG_IDE
|
1883 |
printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
|
1884 |
#endif
|
1885 |
return ret;
|
1886 |
} |
1887 |
|
1888 |
static void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val) |
1889 |
{ |
1890 |
IDEState *ide_if = opaque; |
1891 |
IDEState *s; |
1892 |
int i;
|
1893 |
|
1894 |
#ifdef DEBUG_IDE
|
1895 |
printf("ide: write control addr=0x%x val=%02x\n", addr, val);
|
1896 |
#endif
|
1897 |
/* common for both drives */
|
1898 |
if (!(ide_if[0].cmd & IDE_CMD_RESET) && |
1899 |
(val & IDE_CMD_RESET)) { |
1900 |
/* reset low to high */
|
1901 |
for(i = 0;i < 2; i++) { |
1902 |
s = &ide_if[i]; |
1903 |
s->status = BUSY_STAT | SEEK_STAT; |
1904 |
s->error = 0x01;
|
1905 |
} |
1906 |
} else if ((ide_if[0].cmd & IDE_CMD_RESET) && |
1907 |
!(val & IDE_CMD_RESET)) { |
1908 |
/* high to low */
|
1909 |
for(i = 0;i < 2; i++) { |
1910 |
s = &ide_if[i]; |
1911 |
if (s->is_cdrom)
|
1912 |
s->status = 0x00; /* NOTE: READY is _not_ set */ |
1913 |
else
|
1914 |
s->status = READY_STAT | SEEK_STAT; |
1915 |
ide_set_signature(s); |
1916 |
} |
1917 |
} |
1918 |
|
1919 |
ide_if[0].cmd = val;
|
1920 |
ide_if[1].cmd = val;
|
1921 |
} |
1922 |
|
1923 |
static void ide_data_writew(void *opaque, uint32_t addr, uint32_t val) |
1924 |
{ |
1925 |
IDEState *s = ((IDEState *)opaque)->cur_drive; |
1926 |
uint8_t *p; |
1927 |
|
1928 |
p = s->data_ptr; |
1929 |
*(uint16_t *)p = le16_to_cpu(val); |
1930 |
p += 2;
|
1931 |
s->data_ptr = p; |
1932 |
if (p >= s->data_end)
|
1933 |
s->end_transfer_func(s); |
1934 |
} |
1935 |
|
1936 |
static uint32_t ide_data_readw(void *opaque, uint32_t addr) |
1937 |
{ |
1938 |
IDEState *s = ((IDEState *)opaque)->cur_drive; |
1939 |
uint8_t *p; |
1940 |
int ret;
|
1941 |
p = s->data_ptr; |
1942 |
ret = cpu_to_le16(*(uint16_t *)p); |
1943 |
p += 2;
|
1944 |
s->data_ptr = p; |
1945 |
if (p >= s->data_end)
|
1946 |
s->end_transfer_func(s); |
1947 |
return ret;
|
1948 |
} |
1949 |
|
1950 |
static void ide_data_writel(void *opaque, uint32_t addr, uint32_t val) |
1951 |
{ |
1952 |
IDEState *s = ((IDEState *)opaque)->cur_drive; |
1953 |
uint8_t *p; |
1954 |
|
1955 |
p = s->data_ptr; |
1956 |
*(uint32_t *)p = le32_to_cpu(val); |
1957 |
p += 4;
|
1958 |
s->data_ptr = p; |
1959 |
if (p >= s->data_end)
|
1960 |
s->end_transfer_func(s); |
1961 |
} |
1962 |
|
1963 |
static uint32_t ide_data_readl(void *opaque, uint32_t addr) |
1964 |
{ |
1965 |
IDEState *s = ((IDEState *)opaque)->cur_drive; |
1966 |
uint8_t *p; |
1967 |
int ret;
|
1968 |
|
1969 |
p = s->data_ptr; |
1970 |
ret = cpu_to_le32(*(uint32_t *)p); |
1971 |
p += 4;
|
1972 |
s->data_ptr = p; |
1973 |
if (p >= s->data_end)
|
1974 |
s->end_transfer_func(s); |
1975 |
return ret;
|
1976 |
} |
1977 |
|
1978 |
static void ide_dummy_transfer_stop(IDEState *s) |
1979 |
{ |
1980 |
s->data_ptr = s->io_buffer; |
1981 |
s->data_end = s->io_buffer; |
1982 |
s->io_buffer[0] = 0xff; |
1983 |
s->io_buffer[1] = 0xff; |
1984 |
s->io_buffer[2] = 0xff; |
1985 |
s->io_buffer[3] = 0xff; |
1986 |
} |
1987 |
|
1988 |
static void ide_reset(IDEState *s) |
1989 |
{ |
1990 |
s->mult_sectors = MAX_MULT_SECTORS; |
1991 |
s->cur_drive = s; |
1992 |
s->select = 0xa0;
|
1993 |
s->status = READY_STAT; |
1994 |
ide_set_signature(s); |
1995 |
/* init the transfer handler so that 0xffff is returned on data
|
1996 |
accesses */
|
1997 |
s->end_transfer_func = ide_dummy_transfer_stop; |
1998 |
ide_dummy_transfer_stop(s); |
1999 |
} |
2000 |
|
2001 |
struct partition {
|
2002 |
uint8_t boot_ind; /* 0x80 - active */
|
2003 |
uint8_t head; /* starting head */
|
2004 |
uint8_t sector; /* starting sector */
|
2005 |
uint8_t cyl; /* starting cylinder */
|
2006 |
uint8_t sys_ind; /* What partition type */
|
2007 |
uint8_t end_head; /* end head */
|
2008 |
uint8_t end_sector; /* end sector */
|
2009 |
uint8_t end_cyl; /* end cylinder */
|
2010 |
uint32_t start_sect; /* starting sector counting from 0 */
|
2011 |
uint32_t nr_sects; /* nr of sectors in partition */
|
2012 |
} __attribute__((packed)); |
2013 |
|
2014 |
/* try to guess the disk logical geometry from the MSDOS partition table. Return 0 if OK, -1 if could not guess */
|
2015 |
static int guess_disk_lchs(IDEState *s, |
2016 |
int *pcylinders, int *pheads, int *psectors) |
2017 |
{ |
2018 |
uint8_t buf[512];
|
2019 |
int ret, i, heads, sectors, cylinders;
|
2020 |
struct partition *p;
|
2021 |
uint32_t nr_sects; |
2022 |
|
2023 |
ret = bdrv_read(s->bs, 0, buf, 1); |
2024 |
if (ret < 0) |
2025 |
return -1; |
2026 |
/* test msdos magic */
|
2027 |
if (buf[510] != 0x55 || buf[511] != 0xaa) |
2028 |
return -1; |
2029 |
for(i = 0; i < 4; i++) { |
2030 |
p = ((struct partition *)(buf + 0x1be)) + i; |
2031 |
nr_sects = le32_to_cpu(p->nr_sects); |
2032 |
if (nr_sects && p->end_head) {
|
2033 |
/* We make the assumption that the partition terminates on
|
2034 |
a cylinder boundary */
|
2035 |
heads = p->end_head + 1;
|
2036 |
sectors = p->end_sector & 63;
|
2037 |
if (sectors == 0) |
2038 |
continue;
|
2039 |
cylinders = s->nb_sectors / (heads * sectors); |
2040 |
if (cylinders < 1 || cylinders > 16383) |
2041 |
continue;
|
2042 |
*pheads = heads; |
2043 |
*psectors = sectors; |
2044 |
*pcylinders = cylinders; |
2045 |
#if 0
|
2046 |
printf("guessed geometry: LCHS=%d %d %d\n",
|
2047 |
cylinders, heads, sectors);
|
2048 |
#endif
|
2049 |
return 0; |
2050 |
} |
2051 |
} |
2052 |
return -1; |
2053 |
} |
2054 |
|
2055 |
static void ide_init2(IDEState *ide_state, |
2056 |
BlockDriverState *hd0, BlockDriverState *hd1, |
2057 |
SetIRQFunc *set_irq, void *irq_opaque, int irq) |
2058 |
{ |
2059 |
IDEState *s; |
2060 |
static int drive_serial = 1; |
2061 |
int i, cylinders, heads, secs, translation;
|
2062 |
int64_t nb_sectors; |
2063 |
|
2064 |
for(i = 0; i < 2; i++) { |
2065 |
s = ide_state + i; |
2066 |
if (i == 0) |
2067 |
s->bs = hd0; |
2068 |
else
|
2069 |
s->bs = hd1; |
2070 |
if (s->bs) {
|
2071 |
bdrv_get_geometry(s->bs, &nb_sectors); |
2072 |
s->nb_sectors = nb_sectors; |
2073 |
/* if a geometry hint is available, use it */
|
2074 |
bdrv_get_geometry_hint(s->bs, &cylinders, &heads, &secs); |
2075 |
if (cylinders != 0) { |
2076 |
s->cylinders = cylinders; |
2077 |
s->heads = heads; |
2078 |
s->sectors = secs; |
2079 |
} else {
|
2080 |
if (guess_disk_lchs(s, &cylinders, &heads, &secs) == 0) { |
2081 |
if (heads > 16) { |
2082 |
/* if heads > 16, it means that a BIOS LBA
|
2083 |
translation was active, so the default
|
2084 |
hardware geometry is OK */
|
2085 |
goto default_geometry;
|
2086 |
} else {
|
2087 |
s->cylinders = cylinders; |
2088 |
s->heads = heads; |
2089 |
s->sectors = secs; |
2090 |
/* disable any translation to be in sync with
|
2091 |
the logical geometry */
|
2092 |
translation = bdrv_get_translation_hint(s->bs); |
2093 |
if (translation == BIOS_ATA_TRANSLATION_AUTO) {
|
2094 |
bdrv_set_translation_hint(s->bs, |
2095 |
BIOS_ATA_TRANSLATION_NONE); |
2096 |
} |
2097 |
} |
2098 |
} else {
|
2099 |
default_geometry:
|
2100 |
/* if no geometry, use a standard physical disk geometry */
|
2101 |
cylinders = nb_sectors / (16 * 63); |
2102 |
if (cylinders > 16383) |
2103 |
cylinders = 16383;
|
2104 |
else if (cylinders < 2) |
2105 |
cylinders = 2;
|
2106 |
s->cylinders = cylinders; |
2107 |
s->heads = 16;
|
2108 |
s->sectors = 63;
|
2109 |
} |
2110 |
bdrv_set_geometry_hint(s->bs, s->cylinders, s->heads, s->sectors); |
2111 |
} |
2112 |
if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
|
2113 |
s->is_cdrom = 1;
|
2114 |
} |
2115 |
} |
2116 |
s->drive_serial = drive_serial++; |
2117 |
s->set_irq = set_irq; |
2118 |
s->irq_opaque = irq_opaque; |
2119 |
s->irq = irq; |
2120 |
s->sector_write_timer = qemu_new_timer(vm_clock, |
2121 |
ide_sector_write_timer_cb, s); |
2122 |
ide_reset(s); |
2123 |
} |
2124 |
} |
2125 |
|
2126 |
static void ide_init_ioport(IDEState *ide_state, int iobase, int iobase2) |
2127 |
{ |
2128 |
register_ioport_write(iobase, 8, 1, ide_ioport_write, ide_state); |
2129 |
register_ioport_read(iobase, 8, 1, ide_ioport_read, ide_state); |
2130 |
if (iobase2) {
|
2131 |
register_ioport_read(iobase2, 1, 1, ide_status_read, ide_state); |
2132 |
register_ioport_write(iobase2, 1, 1, ide_cmd_write, ide_state); |
2133 |
} |
2134 |
|
2135 |
/* data ports */
|
2136 |
register_ioport_write(iobase, 2, 2, ide_data_writew, ide_state); |
2137 |
register_ioport_read(iobase, 2, 2, ide_data_readw, ide_state); |
2138 |
register_ioport_write(iobase, 4, 4, ide_data_writel, ide_state); |
2139 |
register_ioport_read(iobase, 4, 4, ide_data_readl, ide_state); |
2140 |
} |
2141 |
|
2142 |
/***********************************************************/
|
2143 |
/* ISA IDE definitions */
|
2144 |
|
2145 |
void isa_ide_init(int iobase, int iobase2, int irq, |
2146 |
BlockDriverState *hd0, BlockDriverState *hd1) |
2147 |
{ |
2148 |
IDEState *ide_state; |
2149 |
|
2150 |
ide_state = qemu_mallocz(sizeof(IDEState) * 2); |
2151 |
if (!ide_state)
|
2152 |
return;
|
2153 |
|
2154 |
ide_init2(ide_state, hd0, hd1, pic_set_irq_new, isa_pic, irq); |
2155 |
ide_init_ioport(ide_state, iobase, iobase2); |
2156 |
} |
2157 |
|
2158 |
/***********************************************************/
|
2159 |
/* PCI IDE definitions */
|
2160 |
|
2161 |
static void cmd646_update_irq(PCIIDEState *d); |
2162 |
|
2163 |
static void ide_map(PCIDevice *pci_dev, int region_num, |
2164 |
uint32_t addr, uint32_t size, int type)
|
2165 |
{ |
2166 |
PCIIDEState *d = (PCIIDEState *)pci_dev; |
2167 |
IDEState *ide_state; |
2168 |
|
2169 |
if (region_num <= 3) { |
2170 |
ide_state = &d->ide_if[(region_num >> 1) * 2]; |
2171 |
if (region_num & 1) { |
2172 |
register_ioport_read(addr + 2, 1, 1, ide_status_read, ide_state); |
2173 |
register_ioport_write(addr + 2, 1, 1, ide_cmd_write, ide_state); |
2174 |
} else {
|
2175 |
register_ioport_write(addr, 8, 1, ide_ioport_write, ide_state); |
2176 |
register_ioport_read(addr, 8, 1, ide_ioport_read, ide_state); |
2177 |
|
2178 |
/* data ports */
|
2179 |
register_ioport_write(addr, 2, 2, ide_data_writew, ide_state); |
2180 |
register_ioport_read(addr, 2, 2, ide_data_readw, ide_state); |
2181 |
register_ioport_write(addr, 4, 4, ide_data_writel, ide_state); |
2182 |
register_ioport_read(addr, 4, 4, ide_data_readl, ide_state); |
2183 |
} |
2184 |
} |
2185 |
} |
2186 |
|
2187 |
static void ide_dma_start(IDEState *s, BlockDriverCompletionFunc *dma_cb) |
2188 |
{ |
2189 |
BMDMAState *bm = s->bmdma; |
2190 |
if(!bm)
|
2191 |
return;
|
2192 |
bm->ide_if = s; |
2193 |
bm->dma_cb = dma_cb; |
2194 |
bm->cur_addr = bm->addr; |
2195 |
bm->cur_prd_last = 0;
|
2196 |
bm->cur_prd_addr = 0;
|
2197 |
bm->cur_prd_len = 0;
|
2198 |
if (bm->status & BM_STATUS_DMAING) {
|
2199 |
bm->dma_cb(bm, 0);
|
2200 |
} |
2201 |
} |
2202 |
|
2203 |
static void bmdma_cmd_writeb(void *opaque, uint32_t addr, uint32_t val) |
2204 |
{ |
2205 |
BMDMAState *bm = opaque; |
2206 |
#ifdef DEBUG_IDE
|
2207 |
printf("%s: 0x%08x\n", __func__, val);
|
2208 |
#endif
|
2209 |
if (!(val & BM_CMD_START)) {
|
2210 |
/* XXX: do it better */
|
2211 |
if (bm->status & BM_STATUS_DMAING) {
|
2212 |
bm->status &= ~BM_STATUS_DMAING; |
2213 |
/* cancel DMA request */
|
2214 |
bm->ide_if = NULL;
|
2215 |
bm->dma_cb = NULL;
|
2216 |
if (bm->aiocb) {
|
2217 |
#ifdef DEBUG_AIO
|
2218 |
printf("aio_cancel\n");
|
2219 |
#endif
|
2220 |
bdrv_aio_cancel(bm->aiocb); |
2221 |
bm->aiocb = NULL;
|
2222 |
} |
2223 |
} |
2224 |
bm->cmd = val & 0x09;
|
2225 |
} else {
|
2226 |
if (!(bm->status & BM_STATUS_DMAING)) {
|
2227 |
bm->status |= BM_STATUS_DMAING; |
2228 |
/* start dma transfer if possible */
|
2229 |
if (bm->dma_cb)
|
2230 |
bm->dma_cb(bm, 0);
|
2231 |
} |
2232 |
bm->cmd = val & 0x09;
|
2233 |
} |
2234 |
} |
2235 |
|
2236 |
static uint32_t bmdma_readb(void *opaque, uint32_t addr) |
2237 |
{ |
2238 |
BMDMAState *bm = opaque; |
2239 |
PCIIDEState *pci_dev; |
2240 |
uint32_t val; |
2241 |
|
2242 |
switch(addr & 3) { |
2243 |
case 0: |
2244 |
val = bm->cmd; |
2245 |
break;
|
2246 |
case 1: |
2247 |
pci_dev = bm->pci_dev; |
2248 |
if (pci_dev->type == IDE_TYPE_CMD646) {
|
2249 |
val = pci_dev->dev.config[MRDMODE]; |
2250 |
} else {
|
2251 |
val = 0xff;
|
2252 |
} |
2253 |
break;
|
2254 |
case 2: |
2255 |
val = bm->status; |
2256 |
break;
|
2257 |
case 3: |
2258 |
pci_dev = bm->pci_dev; |
2259 |
if (pci_dev->type == IDE_TYPE_CMD646) {
|
2260 |
if (bm == &pci_dev->bmdma[0]) |
2261 |
val = pci_dev->dev.config[UDIDETCR0]; |
2262 |
else
|
2263 |
val = pci_dev->dev.config[UDIDETCR1]; |
2264 |
} else {
|
2265 |
val = 0xff;
|
2266 |
} |
2267 |
break;
|
2268 |
default:
|
2269 |
val = 0xff;
|
2270 |
break;
|
2271 |
} |
2272 |
#ifdef DEBUG_IDE
|
2273 |
printf("bmdma: readb 0x%02x : 0x%02x\n", addr, val);
|
2274 |
#endif
|
2275 |
return val;
|
2276 |
} |
2277 |
|
2278 |
static void bmdma_writeb(void *opaque, uint32_t addr, uint32_t val) |
2279 |
{ |
2280 |
BMDMAState *bm = opaque; |
2281 |
PCIIDEState *pci_dev; |
2282 |
#ifdef DEBUG_IDE
|
2283 |
printf("bmdma: writeb 0x%02x : 0x%02x\n", addr, val);
|
2284 |
#endif
|
2285 |
switch(addr & 3) { |
2286 |
case 1: |
2287 |
pci_dev = bm->pci_dev; |
2288 |
if (pci_dev->type == IDE_TYPE_CMD646) {
|
2289 |
pci_dev->dev.config[MRDMODE] = |
2290 |
(pci_dev->dev.config[MRDMODE] & ~0x30) | (val & 0x30); |
2291 |
cmd646_update_irq(pci_dev); |
2292 |
} |
2293 |
break;
|
2294 |
case 2: |
2295 |
bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06); |
2296 |
break;
|
2297 |
case 3: |
2298 |
pci_dev = bm->pci_dev; |
2299 |
if (pci_dev->type == IDE_TYPE_CMD646) {
|
2300 |
if (bm == &pci_dev->bmdma[0]) |
2301 |
pci_dev->dev.config[UDIDETCR0] = val; |
2302 |
else
|
2303 |
pci_dev->dev.config[UDIDETCR1] = val; |
2304 |
} |
2305 |
break;
|
2306 |
} |
2307 |
} |
2308 |
|
2309 |
static uint32_t bmdma_addr_readl(void *opaque, uint32_t addr) |
2310 |
{ |
2311 |
BMDMAState *bm = opaque; |
2312 |
uint32_t val; |
2313 |
val = bm->addr; |
2314 |
#ifdef DEBUG_IDE
|
2315 |
printf("%s: 0x%08x\n", __func__, val);
|
2316 |
#endif
|
2317 |
return val;
|
2318 |
} |
2319 |
|
2320 |
static void bmdma_addr_writel(void *opaque, uint32_t addr, uint32_t val) |
2321 |
{ |
2322 |
BMDMAState *bm = opaque; |
2323 |
#ifdef DEBUG_IDE
|
2324 |
printf("%s: 0x%08x\n", __func__, val);
|
2325 |
#endif
|
2326 |
bm->addr = val & ~3;
|
2327 |
} |
2328 |
|
2329 |
static void bmdma_map(PCIDevice *pci_dev, int region_num, |
2330 |
uint32_t addr, uint32_t size, int type)
|
2331 |
{ |
2332 |
PCIIDEState *d = (PCIIDEState *)pci_dev; |
2333 |
int i;
|
2334 |
|
2335 |
for(i = 0;i < 2; i++) { |
2336 |
BMDMAState *bm = &d->bmdma[i]; |
2337 |
d->ide_if[2 * i].bmdma = bm;
|
2338 |
d->ide_if[2 * i + 1].bmdma = bm; |
2339 |
bm->pci_dev = (PCIIDEState *)pci_dev; |
2340 |
|
2341 |
register_ioport_write(addr, 1, 1, bmdma_cmd_writeb, bm); |
2342 |
|
2343 |
register_ioport_write(addr + 1, 3, 1, bmdma_writeb, bm); |
2344 |
register_ioport_read(addr, 4, 1, bmdma_readb, bm); |
2345 |
|
2346 |
register_ioport_write(addr + 4, 4, 4, bmdma_addr_writel, bm); |
2347 |
register_ioport_read(addr + 4, 4, 4, bmdma_addr_readl, bm); |
2348 |
addr += 8;
|
2349 |
} |
2350 |
} |
2351 |
|
2352 |
/* XXX: call it also when the MRDMODE is changed from the PCI config
|
2353 |
registers */
|
2354 |
static void cmd646_update_irq(PCIIDEState *d) |
2355 |
{ |
2356 |
int pci_level;
|
2357 |
pci_level = ((d->dev.config[MRDMODE] & MRDMODE_INTR_CH0) && |
2358 |
!(d->dev.config[MRDMODE] & MRDMODE_BLK_CH0)) || |
2359 |
((d->dev.config[MRDMODE] & MRDMODE_INTR_CH1) && |
2360 |
!(d->dev.config[MRDMODE] & MRDMODE_BLK_CH1)); |
2361 |
pci_set_irq((PCIDevice *)d, 0, pci_level);
|
2362 |
} |
2363 |
|
2364 |
/* the PCI irq level is the logical OR of the two channels */
|
2365 |
static void cmd646_set_irq(void *opaque, int channel, int level) |
2366 |
{ |
2367 |
PCIIDEState *d = opaque; |
2368 |
int irq_mask;
|
2369 |
|
2370 |
irq_mask = MRDMODE_INTR_CH0 << channel; |
2371 |
if (level)
|
2372 |
d->dev.config[MRDMODE] |= irq_mask; |
2373 |
else
|
2374 |
d->dev.config[MRDMODE] &= ~irq_mask; |
2375 |
cmd646_update_irq(d); |
2376 |
} |
2377 |
|
2378 |
/* CMD646 PCI IDE controller */
|
2379 |
void pci_cmd646_ide_init(PCIBus *bus, BlockDriverState **hd_table,
|
2380 |
int secondary_ide_enabled)
|
2381 |
{ |
2382 |
PCIIDEState *d; |
2383 |
uint8_t *pci_conf; |
2384 |
int i;
|
2385 |
|
2386 |
d = (PCIIDEState *)pci_register_device(bus, "CMD646 IDE",
|
2387 |
sizeof(PCIIDEState),
|
2388 |
-1,
|
2389 |
NULL, NULL); |
2390 |
d->type = IDE_TYPE_CMD646; |
2391 |
pci_conf = d->dev.config; |
2392 |
pci_conf[0x00] = 0x95; // CMD646 |
2393 |
pci_conf[0x01] = 0x10; |
2394 |
pci_conf[0x02] = 0x46; |
2395 |
pci_conf[0x03] = 0x06; |
2396 |
|
2397 |
pci_conf[0x08] = 0x07; // IDE controller revision |
2398 |
pci_conf[0x09] = 0x8f; |
2399 |
|
2400 |
pci_conf[0x0a] = 0x01; // class_sub = PCI_IDE |
2401 |
pci_conf[0x0b] = 0x01; // class_base = PCI_mass_storage |
2402 |
pci_conf[0x0e] = 0x00; // header_type |
2403 |
|
2404 |
if (secondary_ide_enabled) {
|
2405 |
/* XXX: if not enabled, really disable the seconday IDE controller */
|
2406 |
pci_conf[0x51] = 0x80; /* enable IDE1 */ |
2407 |
} |
2408 |
|
2409 |
pci_register_io_region((PCIDevice *)d, 0, 0x8, |
2410 |
PCI_ADDRESS_SPACE_IO, ide_map); |
2411 |
pci_register_io_region((PCIDevice *)d, 1, 0x4, |
2412 |
PCI_ADDRESS_SPACE_IO, ide_map); |
2413 |
pci_register_io_region((PCIDevice *)d, 2, 0x8, |
2414 |
PCI_ADDRESS_SPACE_IO, ide_map); |
2415 |
pci_register_io_region((PCIDevice *)d, 3, 0x4, |
2416 |
PCI_ADDRESS_SPACE_IO, ide_map); |
2417 |
pci_register_io_region((PCIDevice *)d, 4, 0x10, |
2418 |
PCI_ADDRESS_SPACE_IO, bmdma_map); |
2419 |
|
2420 |
pci_conf[0x3d] = 0x01; // interrupt on pin 1 |
2421 |
|
2422 |
for(i = 0; i < 4; i++) |
2423 |
d->ide_if[i].pci_dev = (PCIDevice *)d; |
2424 |
ide_init2(&d->ide_if[0], hd_table[0], hd_table[1], |
2425 |
cmd646_set_irq, d, 0);
|
2426 |
ide_init2(&d->ide_if[2], hd_table[2], hd_table[3], |
2427 |
cmd646_set_irq, d, 1);
|
2428 |
} |
2429 |
|
2430 |
static void pci_ide_save(QEMUFile* f, void *opaque) |
2431 |
{ |
2432 |
PCIIDEState *d = opaque; |
2433 |
int i;
|
2434 |
|
2435 |
pci_device_save(&d->dev, f); |
2436 |
|
2437 |
for(i = 0; i < 2; i++) { |
2438 |
BMDMAState *bm = &d->bmdma[i]; |
2439 |
qemu_put_8s(f, &bm->cmd); |
2440 |
qemu_put_8s(f, &bm->status); |
2441 |
qemu_put_be32s(f, &bm->addr); |
2442 |
/* XXX: if a transfer is pending, we do not save it yet */
|
2443 |
} |
2444 |
|
2445 |
/* per IDE interface data */
|
2446 |
for(i = 0; i < 2; i++) { |
2447 |
IDEState *s = &d->ide_if[i * 2];
|
2448 |
uint8_t drive1_selected; |
2449 |
qemu_put_8s(f, &s->cmd); |
2450 |
drive1_selected = (s->cur_drive != s); |
2451 |
qemu_put_8s(f, &drive1_selected); |
2452 |
} |
2453 |
|
2454 |
/* per IDE drive data */
|
2455 |
for(i = 0; i < 4; i++) { |
2456 |
IDEState *s = &d->ide_if[i]; |
2457 |
qemu_put_be32s(f, &s->mult_sectors); |
2458 |
qemu_put_be32s(f, &s->identify_set); |
2459 |
if (s->identify_set) {
|
2460 |
qemu_put_buffer(f, (const uint8_t *)s->identify_data, 512); |
2461 |
} |
2462 |
qemu_put_8s(f, &s->feature); |
2463 |
qemu_put_8s(f, &s->error); |
2464 |
qemu_put_be32s(f, &s->nsector); |
2465 |
qemu_put_8s(f, &s->sector); |
2466 |
qemu_put_8s(f, &s->lcyl); |
2467 |
qemu_put_8s(f, &s->hcyl); |
2468 |
qemu_put_8s(f, &s->hob_feature); |
2469 |
qemu_put_8s(f, &s->hob_nsector); |
2470 |
qemu_put_8s(f, &s->hob_sector); |
2471 |
qemu_put_8s(f, &s->hob_lcyl); |
2472 |
qemu_put_8s(f, &s->hob_hcyl); |
2473 |
qemu_put_8s(f, &s->select); |
2474 |
qemu_put_8s(f, &s->status); |
2475 |
qemu_put_8s(f, &s->lba48); |
2476 |
|
2477 |
qemu_put_8s(f, &s->sense_key); |
2478 |
qemu_put_8s(f, &s->asc); |
2479 |
/* XXX: if a transfer is pending, we do not save it yet */
|
2480 |
} |
2481 |
} |
2482 |
|
2483 |
static int pci_ide_load(QEMUFile* f, void *opaque, int version_id) |
2484 |
{ |
2485 |
PCIIDEState *d = opaque; |
2486 |
int ret, i;
|
2487 |
|
2488 |
if (version_id != 1) |
2489 |
return -EINVAL;
|
2490 |
ret = pci_device_load(&d->dev, f); |
2491 |
if (ret < 0) |
2492 |
return ret;
|
2493 |
|
2494 |
for(i = 0; i < 2; i++) { |
2495 |
BMDMAState *bm = &d->bmdma[i]; |
2496 |
qemu_get_8s(f, &bm->cmd); |
2497 |
qemu_get_8s(f, &bm->status); |
2498 |
qemu_get_be32s(f, &bm->addr); |
2499 |
/* XXX: if a transfer is pending, we do not save it yet */
|
2500 |
} |
2501 |
|
2502 |
/* per IDE interface data */
|
2503 |
for(i = 0; i < 2; i++) { |
2504 |
IDEState *s = &d->ide_if[i * 2];
|
2505 |
uint8_t drive1_selected; |
2506 |
qemu_get_8s(f, &s->cmd); |
2507 |
qemu_get_8s(f, &drive1_selected); |
2508 |
s->cur_drive = &d->ide_if[i * 2 + (drive1_selected != 0)]; |
2509 |
} |
2510 |
|
2511 |
/* per IDE drive data */
|
2512 |
for(i = 0; i < 4; i++) { |
2513 |
IDEState *s = &d->ide_if[i]; |
2514 |
qemu_get_be32s(f, &s->mult_sectors); |
2515 |
qemu_get_be32s(f, &s->identify_set); |
2516 |
if (s->identify_set) {
|
2517 |
qemu_get_buffer(f, (uint8_t *)s->identify_data, 512);
|
2518 |
} |
2519 |
qemu_get_8s(f, &s->feature); |
2520 |
qemu_get_8s(f, &s->error); |
2521 |
qemu_get_be32s(f, &s->nsector); |
2522 |
qemu_get_8s(f, &s->sector); |
2523 |
qemu_get_8s(f, &s->lcyl); |
2524 |
qemu_get_8s(f, &s->hcyl); |
2525 |
qemu_get_8s(f, &s->hob_feature); |
2526 |
qemu_get_8s(f, &s->hob_nsector); |
2527 |
qemu_get_8s(f, &s->hob_sector); |
2528 |
qemu_get_8s(f, &s->hob_lcyl); |
2529 |
qemu_get_8s(f, &s->hob_hcyl); |
2530 |
qemu_get_8s(f, &s->select); |
2531 |
qemu_get_8s(f, &s->status); |
2532 |
qemu_get_8s(f, &s->lba48); |
2533 |
|
2534 |
qemu_get_8s(f, &s->sense_key); |
2535 |
qemu_get_8s(f, &s->asc); |
2536 |
/* XXX: if a transfer is pending, we do not save it yet */
|
2537 |
} |
2538 |
return 0; |
2539 |
} |
2540 |
|
2541 |
/* hd_table must contain 4 block drivers */
|
2542 |
/* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */
|
2543 |
void pci_piix3_ide_init(PCIBus *bus, BlockDriverState **hd_table, int devfn) |
2544 |
{ |
2545 |
PCIIDEState *d; |
2546 |
uint8_t *pci_conf; |
2547 |
|
2548 |
/* register a function 1 of PIIX3 */
|
2549 |
d = (PCIIDEState *)pci_register_device(bus, "PIIX3 IDE",
|
2550 |
sizeof(PCIIDEState),
|
2551 |
devfn, |
2552 |
NULL, NULL); |
2553 |
d->type = IDE_TYPE_PIIX3; |
2554 |
|
2555 |
pci_conf = d->dev.config; |
2556 |
pci_conf[0x00] = 0x86; // Intel |
2557 |
pci_conf[0x01] = 0x80; |
2558 |
pci_conf[0x02] = 0x10; |
2559 |
pci_conf[0x03] = 0x70; |
2560 |
pci_conf[0x09] = 0x80; // legacy ATA mode |
2561 |
pci_conf[0x0a] = 0x01; // class_sub = PCI_IDE |
2562 |
pci_conf[0x0b] = 0x01; // class_base = PCI_mass_storage |
2563 |
pci_conf[0x0e] = 0x00; // header_type |
2564 |
|
2565 |
pci_register_io_region((PCIDevice *)d, 4, 0x10, |
2566 |
PCI_ADDRESS_SPACE_IO, bmdma_map); |
2567 |
|
2568 |
ide_init2(&d->ide_if[0], hd_table[0], hd_table[1], |
2569 |
pic_set_irq_new, isa_pic, 14);
|
2570 |
ide_init2(&d->ide_if[2], hd_table[2], hd_table[3], |
2571 |
pic_set_irq_new, isa_pic, 15);
|
2572 |
ide_init_ioport(&d->ide_if[0], 0x1f0, 0x3f6); |
2573 |
ide_init_ioport(&d->ide_if[2], 0x170, 0x376); |
2574 |
|
2575 |
register_savevm("ide", 0, 1, pci_ide_save, pci_ide_load, d); |
2576 |
} |
2577 |
|
2578 |
/***********************************************************/
|
2579 |
/* MacIO based PowerPC IDE */
|
2580 |
|
2581 |
/* PowerMac IDE memory IO */
|
2582 |
static void pmac_ide_writeb (void *opaque, |
2583 |
target_phys_addr_t addr, uint32_t val) |
2584 |
{ |
2585 |
addr = (addr & 0xFFF) >> 4; |
2586 |
switch (addr) {
|
2587 |
case 1 ... 7: |
2588 |
ide_ioport_write(opaque, addr, val); |
2589 |
break;
|
2590 |
case 8: |
2591 |
case 22: |
2592 |
ide_cmd_write(opaque, 0, val);
|
2593 |
break;
|
2594 |
default:
|
2595 |
break;
|
2596 |
} |
2597 |
} |
2598 |
|
2599 |
static uint32_t pmac_ide_readb (void *opaque,target_phys_addr_t addr) |
2600 |
{ |
2601 |
uint8_t retval; |
2602 |
|
2603 |
addr = (addr & 0xFFF) >> 4; |
2604 |
switch (addr) {
|
2605 |
case 1 ... 7: |
2606 |
retval = ide_ioport_read(opaque, addr); |
2607 |
break;
|
2608 |
case 8: |
2609 |
case 22: |
2610 |
retval = ide_status_read(opaque, 0);
|
2611 |
break;
|
2612 |
default:
|
2613 |
retval = 0xFF;
|
2614 |
break;
|
2615 |
} |
2616 |
return retval;
|
2617 |
} |
2618 |
|
2619 |
static void pmac_ide_writew (void *opaque, |
2620 |
target_phys_addr_t addr, uint32_t val) |
2621 |
{ |
2622 |
addr = (addr & 0xFFF) >> 4; |
2623 |
#ifdef TARGET_WORDS_BIGENDIAN
|
2624 |
val = bswap16(val); |
2625 |
#endif
|
2626 |
if (addr == 0) { |
2627 |
ide_data_writew(opaque, 0, val);
|
2628 |
} |
2629 |
} |
2630 |
|
2631 |
static uint32_t pmac_ide_readw (void *opaque,target_phys_addr_t addr) |
2632 |
{ |
2633 |
uint16_t retval; |
2634 |
|
2635 |
addr = (addr & 0xFFF) >> 4; |
2636 |
if (addr == 0) { |
2637 |
retval = ide_data_readw(opaque, 0);
|
2638 |
} else {
|
2639 |
retval = 0xFFFF;
|
2640 |
} |
2641 |
#ifdef TARGET_WORDS_BIGENDIAN
|
2642 |
retval = bswap16(retval); |
2643 |
#endif
|
2644 |
return retval;
|
2645 |
} |
2646 |
|
2647 |
static void pmac_ide_writel (void *opaque, |
2648 |
target_phys_addr_t addr, uint32_t val) |
2649 |
{ |
2650 |
addr = (addr & 0xFFF) >> 4; |
2651 |
#ifdef TARGET_WORDS_BIGENDIAN
|
2652 |
val = bswap32(val); |
2653 |
#endif
|
2654 |
if (addr == 0) { |
2655 |
ide_data_writel(opaque, 0, val);
|
2656 |
} |
2657 |
} |
2658 |
|
2659 |
static uint32_t pmac_ide_readl (void *opaque,target_phys_addr_t addr) |
2660 |
{ |
2661 |
uint32_t retval; |
2662 |
|
2663 |
addr = (addr & 0xFFF) >> 4; |
2664 |
if (addr == 0) { |
2665 |
retval = ide_data_readl(opaque, 0);
|
2666 |
} else {
|
2667 |
retval = 0xFFFFFFFF;
|
2668 |
} |
2669 |
#ifdef TARGET_WORDS_BIGENDIAN
|
2670 |
retval = bswap32(retval); |
2671 |
#endif
|
2672 |
return retval;
|
2673 |
} |
2674 |
|
2675 |
static CPUWriteMemoryFunc *pmac_ide_write[] = {
|
2676 |
pmac_ide_writeb, |
2677 |
pmac_ide_writew, |
2678 |
pmac_ide_writel, |
2679 |
}; |
2680 |
|
2681 |
static CPUReadMemoryFunc *pmac_ide_read[] = {
|
2682 |
pmac_ide_readb, |
2683 |
pmac_ide_readw, |
2684 |
pmac_ide_readl, |
2685 |
}; |
2686 |
|
2687 |
/* hd_table must contain 4 block drivers */
|
2688 |
/* PowerMac uses memory mapped registers, not I/O. Return the memory
|
2689 |
I/O index to access the ide. */
|
2690 |
int pmac_ide_init (BlockDriverState **hd_table,
|
2691 |
SetIRQFunc *set_irq, void *irq_opaque, int irq) |
2692 |
{ |
2693 |
IDEState *ide_if; |
2694 |
int pmac_ide_memory;
|
2695 |
|
2696 |
ide_if = qemu_mallocz(sizeof(IDEState) * 2); |
2697 |
ide_init2(&ide_if[0], hd_table[0], hd_table[1], |
2698 |
set_irq, irq_opaque, irq); |
2699 |
|
2700 |
pmac_ide_memory = cpu_register_io_memory(0, pmac_ide_read,
|
2701 |
pmac_ide_write, &ide_if[0]);
|
2702 |
return pmac_ide_memory;
|
2703 |
} |