5457c8ceeb
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1449 c046a42c-6fe2-441c-8c8c-71466251a162
2473 lines
74 KiB
C
2473 lines
74 KiB
C
/*
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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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/* Bits of HD_STATUS */
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#define ERR_STAT 0x01
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#define INDEX_STAT 0x02
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#define ECC_STAT 0x04 /* Corrected error */
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#define DRQ_STAT 0x08
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#define SEEK_STAT 0x10
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#define SRV_STAT 0x10
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#define WRERR_STAT 0x20
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#define READY_STAT 0x40
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#define BUSY_STAT 0x80
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/* Bits for HD_ERROR */
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#define MARK_ERR 0x01 /* Bad address mark */
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#define TRK0_ERR 0x02 /* couldn't find track 0 */
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#define ABRT_ERR 0x04 /* Command aborted */
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#define MCR_ERR 0x08 /* media change request */
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#define ID_ERR 0x10 /* ID field not found */
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#define MC_ERR 0x20 /* media changed */
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#define ECC_ERR 0x40 /* Uncorrectable ECC error */
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#define BBD_ERR 0x80 /* pre-EIDE meaning: block marked bad */
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#define ICRC_ERR 0x80 /* new meaning: CRC error during transfer */
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/* Bits of HD_NSECTOR */
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#define CD 0x01
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#define IO 0x02
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#define REL 0x04
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#define TAG_MASK 0xf8
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#define IDE_CMD_RESET 0x04
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#define IDE_CMD_DISABLE_IRQ 0x02
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/* ATA/ATAPI Commands pre T13 Spec */
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#define WIN_NOP 0x00
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/*
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* 0x01->0x02 Reserved
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*/
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#define CFA_REQ_EXT_ERROR_CODE 0x03 /* CFA Request Extended Error Code */
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/*
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* 0x04->0x07 Reserved
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*/
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#define WIN_SRST 0x08 /* ATAPI soft reset command */
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#define WIN_DEVICE_RESET 0x08
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/*
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* 0x09->0x0F Reserved
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*/
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#define WIN_RECAL 0x10
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#define WIN_RESTORE WIN_RECAL
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/*
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* 0x10->0x1F Reserved
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*/
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#define WIN_READ 0x20 /* 28-Bit */
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#define WIN_READ_ONCE 0x21 /* 28-Bit without retries */
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#define WIN_READ_LONG 0x22 /* 28-Bit */
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#define WIN_READ_LONG_ONCE 0x23 /* 28-Bit without retries */
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#define WIN_READ_EXT 0x24 /* 48-Bit */
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#define WIN_READDMA_EXT 0x25 /* 48-Bit */
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#define WIN_READDMA_QUEUED_EXT 0x26 /* 48-Bit */
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#define WIN_READ_NATIVE_MAX_EXT 0x27 /* 48-Bit */
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/*
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* 0x28
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*/
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#define WIN_MULTREAD_EXT 0x29 /* 48-Bit */
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/*
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* 0x2A->0x2F Reserved
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*/
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#define WIN_WRITE 0x30 /* 28-Bit */
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#define WIN_WRITE_ONCE 0x31 /* 28-Bit without retries */
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#define WIN_WRITE_LONG 0x32 /* 28-Bit */
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#define WIN_WRITE_LONG_ONCE 0x33 /* 28-Bit without retries */
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#define WIN_WRITE_EXT 0x34 /* 48-Bit */
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#define WIN_WRITEDMA_EXT 0x35 /* 48-Bit */
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#define WIN_WRITEDMA_QUEUED_EXT 0x36 /* 48-Bit */
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#define WIN_SET_MAX_EXT 0x37 /* 48-Bit */
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#define CFA_WRITE_SECT_WO_ERASE 0x38 /* CFA Write Sectors without erase */
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#define WIN_MULTWRITE_EXT 0x39 /* 48-Bit */
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/*
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* 0x3A->0x3B Reserved
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*/
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#define WIN_WRITE_VERIFY 0x3C /* 28-Bit */
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/*
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* 0x3D->0x3F Reserved
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*/
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#define WIN_VERIFY 0x40 /* 28-Bit - Read Verify Sectors */
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#define WIN_VERIFY_ONCE 0x41 /* 28-Bit - without retries */
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#define WIN_VERIFY_EXT 0x42 /* 48-Bit */
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/*
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* 0x43->0x4F Reserved
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*/
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#define WIN_FORMAT 0x50
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/*
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* 0x51->0x5F Reserved
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*/
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#define WIN_INIT 0x60
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/*
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* 0x61->0x5F Reserved
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*/
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#define WIN_SEEK 0x70 /* 0x70-0x7F Reserved */
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#define CFA_TRANSLATE_SECTOR 0x87 /* CFA Translate Sector */
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#define WIN_DIAGNOSE 0x90
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#define WIN_SPECIFY 0x91 /* set drive geometry translation */
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#define WIN_DOWNLOAD_MICROCODE 0x92
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#define WIN_STANDBYNOW2 0x94
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#define WIN_STANDBY2 0x96
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#define WIN_SETIDLE2 0x97
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#define WIN_CHECKPOWERMODE2 0x98
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#define WIN_SLEEPNOW2 0x99
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/*
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* 0x9A VENDOR
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*/
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#define WIN_PACKETCMD 0xA0 /* Send a packet command. */
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#define WIN_PIDENTIFY 0xA1 /* identify ATAPI device */
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#define WIN_QUEUED_SERVICE 0xA2
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#define WIN_SMART 0xB0 /* self-monitoring and reporting */
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#define CFA_ERASE_SECTORS 0xC0
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#define WIN_MULTREAD 0xC4 /* read sectors using multiple mode*/
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#define WIN_MULTWRITE 0xC5 /* write sectors using multiple mode */
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#define WIN_SETMULT 0xC6 /* enable/disable multiple mode */
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#define WIN_READDMA_QUEUED 0xC7 /* read sectors using Queued DMA transfers */
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#define WIN_READDMA 0xC8 /* read sectors using DMA transfers */
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#define WIN_READDMA_ONCE 0xC9 /* 28-Bit - without retries */
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#define WIN_WRITEDMA 0xCA /* write sectors using DMA transfers */
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#define WIN_WRITEDMA_ONCE 0xCB /* 28-Bit - without retries */
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#define WIN_WRITEDMA_QUEUED 0xCC /* write sectors using Queued DMA transfers */
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#define CFA_WRITE_MULTI_WO_ERASE 0xCD /* CFA Write multiple without erase */
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#define WIN_GETMEDIASTATUS 0xDA
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#define WIN_ACKMEDIACHANGE 0xDB /* ATA-1, ATA-2 vendor */
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#define WIN_POSTBOOT 0xDC
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#define WIN_PREBOOT 0xDD
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#define WIN_DOORLOCK 0xDE /* lock door on removable drives */
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#define WIN_DOORUNLOCK 0xDF /* unlock door on removable drives */
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#define WIN_STANDBYNOW1 0xE0
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#define WIN_IDLEIMMEDIATE 0xE1 /* force drive to become "ready" */
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#define WIN_STANDBY 0xE2 /* Set device in Standby Mode */
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#define WIN_SETIDLE1 0xE3
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#define WIN_READ_BUFFER 0xE4 /* force read only 1 sector */
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#define WIN_CHECKPOWERMODE1 0xE5
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#define WIN_SLEEPNOW1 0xE6
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#define WIN_FLUSH_CACHE 0xE7
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#define WIN_WRITE_BUFFER 0xE8 /* force write only 1 sector */
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#define WIN_WRITE_SAME 0xE9 /* read ata-2 to use */
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/* SET_FEATURES 0x22 or 0xDD */
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#define WIN_FLUSH_CACHE_EXT 0xEA /* 48-Bit */
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#define WIN_IDENTIFY 0xEC /* ask drive to identify itself */
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#define WIN_MEDIAEJECT 0xED
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#define WIN_IDENTIFY_DMA 0xEE /* same as WIN_IDENTIFY, but DMA */
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#define WIN_SETFEATURES 0xEF /* set special drive features */
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#define EXABYTE_ENABLE_NEST 0xF0
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#define WIN_SECURITY_SET_PASS 0xF1
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#define WIN_SECURITY_UNLOCK 0xF2
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#define WIN_SECURITY_ERASE_PREPARE 0xF3
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#define WIN_SECURITY_ERASE_UNIT 0xF4
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#define WIN_SECURITY_FREEZE_LOCK 0xF5
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#define WIN_SECURITY_DISABLE 0xF6
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#define WIN_READ_NATIVE_MAX 0xF8 /* return the native maximum address */
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#define WIN_SET_MAX 0xF9
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#define DISABLE_SEAGATE 0xFB
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/* set to 1 set disable mult support */
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#define MAX_MULT_SECTORS 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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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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uint16_t nsector; /* 0 is 256 to ease computations */
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uint8_t sector;
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uint8_t lcyl;
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uint8_t hcyl;
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uint8_t select;
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uint8_t status;
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/* 0x3f6 command, only meaningful for drive 0 */
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uint8_t cmd;
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/* depends on bit 4 in select, only meaningful for drive 0 */
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struct IDEState *cur_drive;
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BlockDriverState *bs;
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/* ATAPI specific */
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uint8_t sense_key;
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uint8_t asc;
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int packet_transfer_size;
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int elementary_transfer_size;
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int io_buffer_index;
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int lba;
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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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} IDEState;
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#define BM_STATUS_DMAING 0x01
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#define BM_STATUS_ERROR 0x02
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#define BM_STATUS_INT 0x04
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#define BM_CMD_START 0x01
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#define BM_CMD_READ 0x08
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#define IDE_TYPE_PIIX3 0
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#define IDE_TYPE_CMD646 1
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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
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#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
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typedef int IDEDMAFunc(IDEState *s,
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target_phys_addr_t phys_addr,
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int transfer_size1);
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typedef struct BMDMAState {
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uint8_t cmd;
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uint8_t status;
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uint32_t addr;
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struct PCIIDEState *pci_dev;
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/* current transfer state */
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IDEState *ide_if;
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IDEDMAFunc *dma_cb;
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} BMDMAState;
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typedef struct PCIIDEState {
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PCIDevice dev;
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IDEState ide_if[4];
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BMDMAState bmdma[2];
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int type; /* see IDE_TYPE_xxx */
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} PCIIDEState;
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static void ide_dma_start(IDEState *s, IDEDMAFunc *dma_cb);
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static void padstr(char *str, const char *src, int len)
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{
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int i, v;
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for(i = 0; i < len; i++) {
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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;
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str++;
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}
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}
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static void padstr8(uint8_t *buf, int buf_size, const char *src)
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{
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int i;
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for(i = 0; i < buf_size; i++) {
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if (*src)
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buf[i] = *src++;
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else
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buf[i] = ' ';
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}
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}
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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);
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}
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static void ide_identify(IDEState *s)
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{
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uint16_t *p;
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unsigned int oldsize;
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char buf[20];
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memset(s->io_buffer, 0, 512);
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p = (uint16_t *)s->io_buffer;
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put_le16(p + 0, 0x0040);
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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 ? */
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put_le16(p + 5, 512); /* XXX: retired, remove ? */
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put_le16(p + 6, s->sectors);
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snprintf(buf, sizeof(buf), "QM%05d", s->drive_serial);
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padstr((uint8_t *)(p + 10), buf, 20); /* serial number */
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put_le16(p + 20, 3); /* XXX: retired, remove ? */
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put_le16(p + 21, 512); /* cache size in sectors */
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put_le16(p + 22, 4); /* ecc bytes */
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padstr((uint8_t *)(p + 23), QEMU_VERSION, 8); /* firmware version */
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padstr((uint8_t *)(p + 27), "QEMU HARDDISK", 40); /* model */
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#if MAX_MULT_SECTORS > 1
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put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
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#endif
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put_le16(p + 48, 1); /* dword I/O */
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put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */
|
|
put_le16(p + 51, 0x200); /* PIO transfer cycle */
|
|
put_le16(p + 52, 0x200); /* DMA transfer cycle */
|
|
put_le16(p + 53, 1 | 1 << 2); /* words 54-58,88 are valid */
|
|
put_le16(p + 54, s->cylinders);
|
|
put_le16(p + 55, s->heads);
|
|
put_le16(p + 56, s->sectors);
|
|
oldsize = s->cylinders * s->heads * s->sectors;
|
|
put_le16(p + 57, oldsize);
|
|
put_le16(p + 58, oldsize >> 16);
|
|
if (s->mult_sectors)
|
|
put_le16(p + 59, 0x100 | s->mult_sectors);
|
|
put_le16(p + 60, s->nb_sectors);
|
|
put_le16(p + 61, s->nb_sectors >> 16);
|
|
put_le16(p + 80, (1 << 1) | (1 << 2));
|
|
put_le16(p + 82, (1 << 14));
|
|
put_le16(p + 83, (1 << 14));
|
|
put_le16(p + 84, (1 << 14));
|
|
put_le16(p + 85, (1 << 14));
|
|
put_le16(p + 86, 0);
|
|
put_le16(p + 87, (1 << 14));
|
|
put_le16(p + 88, 0x1f | (1 << 13));
|
|
put_le16(p + 93, 1 | (1 << 14) | 0x2000 | 0x4000);
|
|
}
|
|
|
|
static void ide_atapi_identify(IDEState *s)
|
|
{
|
|
uint16_t *p;
|
|
char buf[20];
|
|
|
|
memset(s->io_buffer, 0, 512);
|
|
p = (uint16_t *)s->io_buffer;
|
|
/* Removable CDROM, 50us response, 12 byte packets */
|
|
put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
|
|
snprintf(buf, sizeof(buf), "QM%05d", s->drive_serial);
|
|
padstr((uint8_t *)(p + 10), buf, 20); /* serial number */
|
|
put_le16(p + 20, 3); /* buffer type */
|
|
put_le16(p + 21, 512); /* cache size in sectors */
|
|
put_le16(p + 22, 4); /* ecc bytes */
|
|
padstr((uint8_t *)(p + 23), QEMU_VERSION, 8); /* firmware version */
|
|
padstr((uint8_t *)(p + 27), "QEMU CD-ROM", 40); /* model */
|
|
put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
|
|
put_le16(p + 49, 1 << 9); /* LBA supported, no DMA */
|
|
put_le16(p + 53, 3); /* words 64-70, 54-58 valid */
|
|
put_le16(p + 63, 0x103); /* DMA modes XXX: may be incorrect */
|
|
put_le16(p + 64, 1); /* PIO modes */
|
|
put_le16(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */
|
|
put_le16(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */
|
|
put_le16(p + 67, 0x12c); /* minimum PIO cycle time without flow control */
|
|
put_le16(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */
|
|
|
|
put_le16(p + 71, 30); /* in ns */
|
|
put_le16(p + 72, 30); /* in ns */
|
|
|
|
put_le16(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */
|
|
}
|
|
|
|
static void ide_set_signature(IDEState *s)
|
|
{
|
|
s->select &= 0xf0; /* clear head */
|
|
/* put signature */
|
|
s->nsector = 1;
|
|
s->sector = 1;
|
|
if (s->is_cdrom) {
|
|
s->lcyl = 0x14;
|
|
s->hcyl = 0xeb;
|
|
} else if (s->bs) {
|
|
s->lcyl = 0;
|
|
s->hcyl = 0;
|
|
} else {
|
|
s->lcyl = 0xff;
|
|
s->hcyl = 0xff;
|
|
}
|
|
}
|
|
|
|
static inline void ide_abort_command(IDEState *s)
|
|
{
|
|
s->status = READY_STAT | ERR_STAT;
|
|
s->error = ABRT_ERR;
|
|
}
|
|
|
|
static inline void ide_set_irq(IDEState *s)
|
|
{
|
|
BMDMAState *bm = s->bmdma;
|
|
if (!(s->cmd & IDE_CMD_DISABLE_IRQ)) {
|
|
if (bm) {
|
|
bm->status |= BM_STATUS_INT;
|
|
}
|
|
s->set_irq(s->irq_opaque, s->irq, 1);
|
|
}
|
|
}
|
|
|
|
/* prepare data transfer and tell what to do after */
|
|
static void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
|
|
EndTransferFunc *end_transfer_func)
|
|
{
|
|
s->end_transfer_func = end_transfer_func;
|
|
s->data_ptr = buf;
|
|
s->data_end = buf + size;
|
|
s->status |= DRQ_STAT;
|
|
}
|
|
|
|
static void ide_transfer_stop(IDEState *s)
|
|
{
|
|
s->end_transfer_func = ide_transfer_stop;
|
|
s->data_ptr = s->io_buffer;
|
|
s->data_end = s->io_buffer;
|
|
s->status &= ~DRQ_STAT;
|
|
}
|
|
|
|
static int64_t ide_get_sector(IDEState *s)
|
|
{
|
|
int64_t sector_num;
|
|
if (s->select & 0x40) {
|
|
/* lba */
|
|
sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) |
|
|
(s->lcyl << 8) | s->sector;
|
|
} else {
|
|
sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
|
|
(s->select & 0x0f) * s->sectors +
|
|
(s->sector - 1);
|
|
}
|
|
return sector_num;
|
|
}
|
|
|
|
static void ide_set_sector(IDEState *s, int64_t sector_num)
|
|
{
|
|
unsigned int cyl, r;
|
|
if (s->select & 0x40) {
|
|
s->select = (s->select & 0xf0) | (sector_num >> 24);
|
|
s->hcyl = (sector_num >> 16);
|
|
s->lcyl = (sector_num >> 8);
|
|
s->sector = (sector_num);
|
|
} else {
|
|
cyl = sector_num / (s->heads * s->sectors);
|
|
r = sector_num % (s->heads * s->sectors);
|
|
s->hcyl = cyl >> 8;
|
|
s->lcyl = cyl;
|
|
s->select = (s->select & 0xf0) | ((r / s->sectors) & 0x0f);
|
|
s->sector = (r % s->sectors) + 1;
|
|
}
|
|
}
|
|
|
|
static void ide_sector_read(IDEState *s)
|
|
{
|
|
int64_t sector_num;
|
|
int ret, n;
|
|
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
s->error = 0; /* not needed by IDE spec, but needed by Windows */
|
|
sector_num = ide_get_sector(s);
|
|
n = s->nsector;
|
|
if (n == 0) {
|
|
/* no more sector to read from disk */
|
|
ide_transfer_stop(s);
|
|
} else {
|
|
#if defined(DEBUG_IDE)
|
|
printf("read sector=%Ld\n", sector_num);
|
|
#endif
|
|
if (n > s->req_nb_sectors)
|
|
n = s->req_nb_sectors;
|
|
ret = bdrv_read(s->bs, sector_num, s->io_buffer, n);
|
|
ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_read);
|
|
ide_set_irq(s);
|
|
ide_set_sector(s, sector_num + n);
|
|
s->nsector -= n;
|
|
}
|
|
}
|
|
|
|
static int ide_read_dma_cb(IDEState *s,
|
|
target_phys_addr_t phys_addr,
|
|
int transfer_size1)
|
|
{
|
|
int len, transfer_size, n;
|
|
int64_t sector_num;
|
|
|
|
transfer_size = transfer_size1;
|
|
while (transfer_size > 0) {
|
|
len = s->io_buffer_size - s->io_buffer_index;
|
|
if (len <= 0) {
|
|
/* transfert next data */
|
|
n = s->nsector;
|
|
if (n == 0)
|
|
break;
|
|
if (n > MAX_MULT_SECTORS)
|
|
n = MAX_MULT_SECTORS;
|
|
sector_num = ide_get_sector(s);
|
|
bdrv_read(s->bs, sector_num, s->io_buffer, n);
|
|
s->io_buffer_index = 0;
|
|
s->io_buffer_size = n * 512;
|
|
len = s->io_buffer_size;
|
|
sector_num += n;
|
|
ide_set_sector(s, sector_num);
|
|
s->nsector -= n;
|
|
}
|
|
if (len > transfer_size)
|
|
len = transfer_size;
|
|
cpu_physical_memory_write(phys_addr,
|
|
s->io_buffer + s->io_buffer_index, len);
|
|
s->io_buffer_index += len;
|
|
transfer_size -= len;
|
|
phys_addr += len;
|
|
}
|
|
if (s->io_buffer_index >= s->io_buffer_size && s->nsector == 0) {
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_set_irq(s);
|
|
#ifdef DEBUG_IDE_ATAPI
|
|
printf("dma status=0x%x\n", s->status);
|
|
#endif
|
|
return 0;
|
|
}
|
|
return transfer_size1 - transfer_size;
|
|
}
|
|
|
|
static void ide_sector_read_dma(IDEState *s)
|
|
{
|
|
s->status = READY_STAT | SEEK_STAT | DRQ_STAT;
|
|
s->io_buffer_index = 0;
|
|
s->io_buffer_size = 0;
|
|
ide_dma_start(s, ide_read_dma_cb);
|
|
}
|
|
|
|
static void ide_sector_write_timer_cb(void *opaque)
|
|
{
|
|
IDEState *s = opaque;
|
|
ide_set_irq(s);
|
|
}
|
|
|
|
static void ide_sector_write(IDEState *s)
|
|
{
|
|
int64_t sector_num;
|
|
int ret, n, n1;
|
|
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
sector_num = ide_get_sector(s);
|
|
#if defined(DEBUG_IDE)
|
|
printf("write sector=%Ld\n", sector_num);
|
|
#endif
|
|
n = s->nsector;
|
|
if (n > s->req_nb_sectors)
|
|
n = s->req_nb_sectors;
|
|
ret = bdrv_write(s->bs, sector_num, s->io_buffer, n);
|
|
s->nsector -= n;
|
|
if (s->nsector == 0) {
|
|
/* no more sector to write */
|
|
ide_transfer_stop(s);
|
|
} else {
|
|
n1 = s->nsector;
|
|
if (n1 > s->req_nb_sectors)
|
|
n1 = s->req_nb_sectors;
|
|
ide_transfer_start(s, s->io_buffer, 512 * n1, ide_sector_write);
|
|
}
|
|
ide_set_sector(s, sector_num + n);
|
|
|
|
#ifdef TARGET_I386
|
|
if (win2k_install_hack) {
|
|
/* It seems there is a bug in the Windows 2000 installer HDD
|
|
IDE driver which fills the disk with empty logs when the
|
|
IDE write IRQ comes too early. This hack tries to correct
|
|
that at the expense of slower write performances. Use this
|
|
option _only_ to install Windows 2000. You must disable it
|
|
for normal use. */
|
|
qemu_mod_timer(s->sector_write_timer,
|
|
qemu_get_clock(vm_clock) + (ticks_per_sec / 1000));
|
|
} else
|
|
#endif
|
|
{
|
|
ide_set_irq(s);
|
|
}
|
|
}
|
|
|
|
static int ide_write_dma_cb(IDEState *s,
|
|
target_phys_addr_t phys_addr,
|
|
int transfer_size1)
|
|
{
|
|
int len, transfer_size, n;
|
|
int64_t sector_num;
|
|
|
|
transfer_size = transfer_size1;
|
|
for(;;) {
|
|
len = s->io_buffer_size - s->io_buffer_index;
|
|
if (len == 0) {
|
|
n = s->io_buffer_size >> 9;
|
|
sector_num = ide_get_sector(s);
|
|
bdrv_write(s->bs, sector_num, s->io_buffer,
|
|
s->io_buffer_size >> 9);
|
|
sector_num += n;
|
|
ide_set_sector(s, sector_num);
|
|
s->nsector -= n;
|
|
n = s->nsector;
|
|
if (n == 0) {
|
|
/* end of transfer */
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_set_irq(s);
|
|
return 0;
|
|
}
|
|
if (n > MAX_MULT_SECTORS)
|
|
n = MAX_MULT_SECTORS;
|
|
s->io_buffer_index = 0;
|
|
s->io_buffer_size = n * 512;
|
|
len = s->io_buffer_size;
|
|
}
|
|
if (transfer_size <= 0)
|
|
break;
|
|
if (len > transfer_size)
|
|
len = transfer_size;
|
|
cpu_physical_memory_read(phys_addr,
|
|
s->io_buffer + s->io_buffer_index, len);
|
|
s->io_buffer_index += len;
|
|
transfer_size -= len;
|
|
phys_addr += len;
|
|
}
|
|
return transfer_size1 - transfer_size;
|
|
}
|
|
|
|
static void ide_sector_write_dma(IDEState *s)
|
|
{
|
|
int n;
|
|
s->status = READY_STAT | SEEK_STAT | DRQ_STAT;
|
|
n = s->nsector;
|
|
if (n > MAX_MULT_SECTORS)
|
|
n = MAX_MULT_SECTORS;
|
|
s->io_buffer_index = 0;
|
|
s->io_buffer_size = n * 512;
|
|
ide_dma_start(s, ide_write_dma_cb);
|
|
}
|
|
|
|
static void ide_atapi_cmd_ok(IDEState *s)
|
|
{
|
|
s->error = 0;
|
|
s->status = READY_STAT;
|
|
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
|
ide_set_irq(s);
|
|
}
|
|
|
|
static void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc)
|
|
{
|
|
#ifdef DEBUG_IDE_ATAPI
|
|
printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key, asc);
|
|
#endif
|
|
s->error = sense_key << 4;
|
|
s->status = READY_STAT | ERR_STAT;
|
|
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
|
s->sense_key = sense_key;
|
|
s->asc = asc;
|
|
ide_set_irq(s);
|
|
}
|
|
|
|
static inline void cpu_to_ube16(uint8_t *buf, int val)
|
|
{
|
|
buf[0] = val >> 8;
|
|
buf[1] = val;
|
|
}
|
|
|
|
static inline void cpu_to_ube32(uint8_t *buf, unsigned int val)
|
|
{
|
|
buf[0] = val >> 24;
|
|
buf[1] = val >> 16;
|
|
buf[2] = val >> 8;
|
|
buf[3] = val;
|
|
}
|
|
|
|
static inline int ube16_to_cpu(const uint8_t *buf)
|
|
{
|
|
return (buf[0] << 8) | buf[1];
|
|
}
|
|
|
|
static inline int ube32_to_cpu(const uint8_t *buf)
|
|
{
|
|
return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
|
|
}
|
|
|
|
static void lba_to_msf(uint8_t *buf, int lba)
|
|
{
|
|
lba += 150;
|
|
buf[0] = (lba / 75) / 60;
|
|
buf[1] = (lba / 75) % 60;
|
|
buf[2] = lba % 75;
|
|
}
|
|
|
|
static void cd_read_sector(BlockDriverState *bs, int lba, uint8_t *buf,
|
|
int sector_size)
|
|
{
|
|
switch(sector_size) {
|
|
case 2048:
|
|
bdrv_read(bs, (int64_t)lba << 2, buf, 4);
|
|
break;
|
|
case 2352:
|
|
/* sync bytes */
|
|
buf[0] = 0x00;
|
|
memset(buf + 1, 0xff, 10);
|
|
buf[11] = 0x00;
|
|
buf += 12;
|
|
/* MSF */
|
|
lba_to_msf(buf, lba);
|
|
buf[3] = 0x01; /* mode 1 data */
|
|
buf += 4;
|
|
/* data */
|
|
bdrv_read(bs, (int64_t)lba << 2, buf, 4);
|
|
buf += 2048;
|
|
/* ECC */
|
|
memset(buf, 0, 288);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* The whole ATAPI transfer logic is handled in this function */
|
|
static void ide_atapi_cmd_reply_end(IDEState *s)
|
|
{
|
|
int byte_count_limit, size;
|
|
#ifdef DEBUG_IDE_ATAPI
|
|
printf("reply: tx_size=%d elem_tx_size=%d index=%d\n",
|
|
s->packet_transfer_size,
|
|
s->elementary_transfer_size,
|
|
s->io_buffer_index);
|
|
#endif
|
|
if (s->packet_transfer_size <= 0) {
|
|
/* end of transfer */
|
|
ide_transfer_stop(s);
|
|
s->status = READY_STAT;
|
|
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
|
ide_set_irq(s);
|
|
#ifdef DEBUG_IDE_ATAPI
|
|
printf("status=0x%x\n", s->status);
|
|
#endif
|
|
} else {
|
|
/* see if a new sector must be read */
|
|
if (s->lba != -1 && s->io_buffer_index >= s->cd_sector_size) {
|
|
cd_read_sector(s->bs, s->lba, s->io_buffer, s->cd_sector_size);
|
|
s->lba++;
|
|
s->io_buffer_index = 0;
|
|
}
|
|
if (s->elementary_transfer_size > 0) {
|
|
/* there are some data left to transmit in this elementary
|
|
transfer */
|
|
size = s->cd_sector_size - s->io_buffer_index;
|
|
if (size > s->elementary_transfer_size)
|
|
size = s->elementary_transfer_size;
|
|
ide_transfer_start(s, s->io_buffer + s->io_buffer_index,
|
|
size, ide_atapi_cmd_reply_end);
|
|
s->packet_transfer_size -= size;
|
|
s->elementary_transfer_size -= size;
|
|
s->io_buffer_index += size;
|
|
} else {
|
|
/* a new transfer is needed */
|
|
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO;
|
|
byte_count_limit = s->lcyl | (s->hcyl << 8);
|
|
#ifdef DEBUG_IDE_ATAPI
|
|
printf("byte_count_limit=%d\n", byte_count_limit);
|
|
#endif
|
|
if (byte_count_limit == 0xffff)
|
|
byte_count_limit--;
|
|
size = s->packet_transfer_size;
|
|
if (size > byte_count_limit) {
|
|
/* byte count limit must be even if this case */
|
|
if (byte_count_limit & 1)
|
|
byte_count_limit--;
|
|
size = byte_count_limit;
|
|
}
|
|
s->lcyl = size;
|
|
s->hcyl = size >> 8;
|
|
s->elementary_transfer_size = size;
|
|
/* we cannot transmit more than one sector at a time */
|
|
if (s->lba != -1) {
|
|
if (size > (s->cd_sector_size - s->io_buffer_index))
|
|
size = (s->cd_sector_size - s->io_buffer_index);
|
|
}
|
|
ide_transfer_start(s, s->io_buffer + s->io_buffer_index,
|
|
size, ide_atapi_cmd_reply_end);
|
|
s->packet_transfer_size -= size;
|
|
s->elementary_transfer_size -= size;
|
|
s->io_buffer_index += size;
|
|
ide_set_irq(s);
|
|
#ifdef DEBUG_IDE_ATAPI
|
|
printf("status=0x%x\n", s->status);
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
/* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
|
|
static void ide_atapi_cmd_reply(IDEState *s, int size, int max_size)
|
|
{
|
|
if (size > max_size)
|
|
size = max_size;
|
|
s->lba = -1; /* no sector read */
|
|
s->packet_transfer_size = size;
|
|
s->elementary_transfer_size = 0;
|
|
s->io_buffer_index = 0;
|
|
|
|
s->status = READY_STAT;
|
|
ide_atapi_cmd_reply_end(s);
|
|
}
|
|
|
|
/* start a CD-CDROM read command */
|
|
static void ide_atapi_cmd_read_pio(IDEState *s, int lba, int nb_sectors,
|
|
int sector_size)
|
|
{
|
|
s->lba = lba;
|
|
s->packet_transfer_size = nb_sectors * sector_size;
|
|
s->elementary_transfer_size = 0;
|
|
s->io_buffer_index = sector_size;
|
|
s->cd_sector_size = sector_size;
|
|
|
|
s->status = READY_STAT;
|
|
ide_atapi_cmd_reply_end(s);
|
|
}
|
|
|
|
/* ATAPI DMA support */
|
|
static int ide_atapi_cmd_read_dma_cb(IDEState *s,
|
|
target_phys_addr_t phys_addr,
|
|
int transfer_size1)
|
|
{
|
|
int len, transfer_size;
|
|
|
|
transfer_size = transfer_size1;
|
|
while (transfer_size > 0) {
|
|
#ifdef DEBUG_IDE_ATAPI
|
|
printf("transfer_size: %d phys_addr=%08x\n", transfer_size, phys_addr);
|
|
#endif
|
|
if (s->packet_transfer_size <= 0)
|
|
break;
|
|
len = s->cd_sector_size - s->io_buffer_index;
|
|
if (len <= 0) {
|
|
/* transfert next data */
|
|
cd_read_sector(s->bs, s->lba, s->io_buffer, s->cd_sector_size);
|
|
s->lba++;
|
|
s->io_buffer_index = 0;
|
|
len = s->cd_sector_size;
|
|
}
|
|
if (len > transfer_size)
|
|
len = transfer_size;
|
|
cpu_physical_memory_write(phys_addr,
|
|
s->io_buffer + s->io_buffer_index, len);
|
|
s->packet_transfer_size -= len;
|
|
s->io_buffer_index += len;
|
|
transfer_size -= len;
|
|
phys_addr += len;
|
|
}
|
|
if (s->packet_transfer_size <= 0) {
|
|
s->status = READY_STAT;
|
|
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
|
ide_set_irq(s);
|
|
#ifdef DEBUG_IDE_ATAPI
|
|
printf("dma status=0x%x\n", s->status);
|
|
#endif
|
|
return 0;
|
|
}
|
|
return transfer_size1 - transfer_size;
|
|
}
|
|
|
|
/* start a CD-CDROM read command with DMA */
|
|
/* XXX: test if DMA is available */
|
|
static void ide_atapi_cmd_read_dma(IDEState *s, int lba, int nb_sectors,
|
|
int sector_size)
|
|
{
|
|
s->lba = lba;
|
|
s->packet_transfer_size = nb_sectors * sector_size;
|
|
s->io_buffer_index = sector_size;
|
|
s->cd_sector_size = sector_size;
|
|
|
|
s->status = READY_STAT | DRQ_STAT;
|
|
ide_dma_start(s, ide_atapi_cmd_read_dma_cb);
|
|
}
|
|
|
|
static void ide_atapi_cmd_read(IDEState *s, int lba, int nb_sectors,
|
|
int sector_size)
|
|
{
|
|
#ifdef DEBUG_IDE_ATAPI
|
|
printf("read: LBA=%d nb_sectors=%d\n", lba, nb_sectors);
|
|
#endif
|
|
if (s->atapi_dma) {
|
|
ide_atapi_cmd_read_dma(s, lba, nb_sectors, sector_size);
|
|
} else {
|
|
ide_atapi_cmd_read_pio(s, lba, nb_sectors, sector_size);
|
|
}
|
|
}
|
|
|
|
/* same toc as bochs. Return -1 if error or the toc length */
|
|
/* XXX: check this */
|
|
static int cdrom_read_toc(IDEState *s, uint8_t *buf, int msf, int start_track)
|
|
{
|
|
uint8_t *q;
|
|
int nb_sectors, len;
|
|
|
|
if (start_track > 1 && start_track != 0xaa)
|
|
return -1;
|
|
q = buf + 2;
|
|
*q++ = 1; /* first session */
|
|
*q++ = 1; /* last session */
|
|
if (start_track <= 1) {
|
|
*q++ = 0; /* reserved */
|
|
*q++ = 0x14; /* ADR, control */
|
|
*q++ = 1; /* track number */
|
|
*q++ = 0; /* reserved */
|
|
if (msf) {
|
|
*q++ = 0; /* reserved */
|
|
lba_to_msf(q, 0);
|
|
q += 3;
|
|
} else {
|
|
/* sector 0 */
|
|
cpu_to_ube32(q, 0);
|
|
q += 4;
|
|
}
|
|
}
|
|
/* lead out track */
|
|
*q++ = 0; /* reserved */
|
|
*q++ = 0x16; /* ADR, control */
|
|
*q++ = 0xaa; /* track number */
|
|
*q++ = 0; /* reserved */
|
|
nb_sectors = s->nb_sectors >> 2;
|
|
if (msf) {
|
|
*q++ = 0; /* reserved */
|
|
lba_to_msf(q, nb_sectors);
|
|
q += 3;
|
|
} else {
|
|
cpu_to_ube32(q, nb_sectors);
|
|
q += 4;
|
|
}
|
|
len = q - buf;
|
|
cpu_to_ube16(buf, len - 2);
|
|
return len;
|
|
}
|
|
|
|
/* mostly same info as PearPc */
|
|
static int cdrom_read_toc_raw(IDEState *s, uint8_t *buf, int msf,
|
|
int session_num)
|
|
{
|
|
uint8_t *q;
|
|
int nb_sectors, len;
|
|
|
|
q = buf + 2;
|
|
*q++ = 1; /* first session */
|
|
*q++ = 1; /* last session */
|
|
|
|
*q++ = 1; /* session number */
|
|
*q++ = 0x14; /* data track */
|
|
*q++ = 0; /* track number */
|
|
*q++ = 0xa0; /* lead-in */
|
|
*q++ = 0; /* min */
|
|
*q++ = 0; /* sec */
|
|
*q++ = 0; /* frame */
|
|
*q++ = 0;
|
|
*q++ = 1; /* first track */
|
|
*q++ = 0x00; /* disk type */
|
|
*q++ = 0x00;
|
|
|
|
*q++ = 1; /* session number */
|
|
*q++ = 0x14; /* data track */
|
|
*q++ = 0; /* track number */
|
|
*q++ = 0xa1;
|
|
*q++ = 0; /* min */
|
|
*q++ = 0; /* sec */
|
|
*q++ = 0; /* frame */
|
|
*q++ = 0;
|
|
*q++ = 1; /* last track */
|
|
*q++ = 0x00;
|
|
*q++ = 0x00;
|
|
|
|
*q++ = 1; /* session number */
|
|
*q++ = 0x14; /* data track */
|
|
*q++ = 0; /* track number */
|
|
*q++ = 0xa2; /* lead-out */
|
|
*q++ = 0; /* min */
|
|
*q++ = 0; /* sec */
|
|
*q++ = 0; /* frame */
|
|
nb_sectors = s->nb_sectors >> 2;
|
|
if (msf) {
|
|
*q++ = 0; /* reserved */
|
|
lba_to_msf(q, nb_sectors);
|
|
q += 3;
|
|
} else {
|
|
cpu_to_ube32(q, nb_sectors);
|
|
q += 4;
|
|
}
|
|
|
|
*q++ = 1; /* session number */
|
|
*q++ = 0x14; /* ADR, control */
|
|
*q++ = 0; /* track number */
|
|
*q++ = 1; /* point */
|
|
*q++ = 0; /* min */
|
|
*q++ = 0; /* sec */
|
|
*q++ = 0; /* frame */
|
|
*q++ = 0;
|
|
*q++ = 0;
|
|
*q++ = 0;
|
|
*q++ = 0;
|
|
|
|
len = q - buf;
|
|
cpu_to_ube16(buf, len - 2);
|
|
return len;
|
|
}
|
|
|
|
static void ide_atapi_cmd(IDEState *s)
|
|
{
|
|
const uint8_t *packet;
|
|
uint8_t *buf;
|
|
int max_len;
|
|
|
|
packet = s->io_buffer;
|
|
buf = s->io_buffer;
|
|
#ifdef DEBUG_IDE_ATAPI
|
|
{
|
|
int i;
|
|
printf("ATAPI limit=0x%x packet:", s->lcyl | (s->hcyl << 8));
|
|
for(i = 0; i < ATAPI_PACKET_SIZE; i++) {
|
|
printf(" %02x", packet[i]);
|
|
}
|
|
printf("\n");
|
|
}
|
|
#endif
|
|
switch(s->io_buffer[0]) {
|
|
case GPCMD_TEST_UNIT_READY:
|
|
if (bdrv_is_inserted(s->bs)) {
|
|
ide_atapi_cmd_ok(s);
|
|
} else {
|
|
ide_atapi_cmd_error(s, SENSE_NOT_READY,
|
|
ASC_MEDIUM_NOT_PRESENT);
|
|
}
|
|
break;
|
|
case GPCMD_MODE_SENSE_10:
|
|
{
|
|
int action, code;
|
|
max_len = ube16_to_cpu(packet + 7);
|
|
action = packet[2] >> 6;
|
|
code = packet[2] & 0x3f;
|
|
switch(action) {
|
|
case 0: /* current values */
|
|
switch(code) {
|
|
case 0x01: /* error recovery */
|
|
cpu_to_ube16(&buf[0], 16 + 6);
|
|
buf[2] = 0x70;
|
|
buf[3] = 0;
|
|
buf[4] = 0;
|
|
buf[5] = 0;
|
|
buf[6] = 0;
|
|
buf[7] = 0;
|
|
|
|
buf[8] = 0x01;
|
|
buf[9] = 0x06;
|
|
buf[10] = 0x00;
|
|
buf[11] = 0x05;
|
|
buf[12] = 0x00;
|
|
buf[13] = 0x00;
|
|
buf[14] = 0x00;
|
|
buf[15] = 0x00;
|
|
ide_atapi_cmd_reply(s, 16, max_len);
|
|
break;
|
|
case 0x2a:
|
|
cpu_to_ube16(&buf[0], 28 + 6);
|
|
buf[2] = 0x70;
|
|
buf[3] = 0;
|
|
buf[4] = 0;
|
|
buf[5] = 0;
|
|
buf[6] = 0;
|
|
buf[7] = 0;
|
|
|
|
buf[8] = 0x2a;
|
|
buf[9] = 0x12;
|
|
buf[10] = 0x00;
|
|
buf[11] = 0x00;
|
|
|
|
buf[12] = 0x70;
|
|
buf[13] = 3 << 5;
|
|
buf[14] = (1 << 0) | (1 << 3) | (1 << 5);
|
|
if (bdrv_is_locked(s->bs))
|
|
buf[6] |= 1 << 1;
|
|
buf[15] = 0x00;
|
|
cpu_to_ube16(&buf[16], 706);
|
|
buf[18] = 0;
|
|
buf[19] = 2;
|
|
cpu_to_ube16(&buf[20], 512);
|
|
cpu_to_ube16(&buf[22], 706);
|
|
buf[24] = 0;
|
|
buf[25] = 0;
|
|
buf[26] = 0;
|
|
buf[27] = 0;
|
|
ide_atapi_cmd_reply(s, 28, max_len);
|
|
break;
|
|
default:
|
|
goto error_cmd;
|
|
}
|
|
break;
|
|
case 1: /* changeable values */
|
|
goto error_cmd;
|
|
case 2: /* default values */
|
|
goto error_cmd;
|
|
default:
|
|
case 3: /* saved values */
|
|
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
|
|
ASC_SAVING_PARAMETERS_NOT_SUPPORTED);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case GPCMD_REQUEST_SENSE:
|
|
max_len = packet[4];
|
|
memset(buf, 0, 18);
|
|
buf[0] = 0x70 | (1 << 7);
|
|
buf[2] = s->sense_key;
|
|
buf[7] = 10;
|
|
buf[12] = s->asc;
|
|
ide_atapi_cmd_reply(s, 18, max_len);
|
|
break;
|
|
case GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
|
|
if (bdrv_is_inserted(s->bs)) {
|
|
bdrv_set_locked(s->bs, packet[4] & 1);
|
|
ide_atapi_cmd_ok(s);
|
|
} else {
|
|
ide_atapi_cmd_error(s, SENSE_NOT_READY,
|
|
ASC_MEDIUM_NOT_PRESENT);
|
|
}
|
|
break;
|
|
case GPCMD_READ_10:
|
|
case GPCMD_READ_12:
|
|
{
|
|
int nb_sectors, lba;
|
|
|
|
if (!bdrv_is_inserted(s->bs)) {
|
|
ide_atapi_cmd_error(s, SENSE_NOT_READY,
|
|
ASC_MEDIUM_NOT_PRESENT);
|
|
break;
|
|
}
|
|
if (packet[0] == GPCMD_READ_10)
|
|
nb_sectors = ube16_to_cpu(packet + 7);
|
|
else
|
|
nb_sectors = ube32_to_cpu(packet + 6);
|
|
lba = ube32_to_cpu(packet + 2);
|
|
if (nb_sectors == 0) {
|
|
ide_atapi_cmd_ok(s);
|
|
break;
|
|
}
|
|
if (((int64_t)(lba + nb_sectors) << 2) > s->nb_sectors) {
|
|
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
|
|
ASC_LOGICAL_BLOCK_OOR);
|
|
break;
|
|
}
|
|
ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
|
|
}
|
|
break;
|
|
case GPCMD_READ_CD:
|
|
{
|
|
int nb_sectors, lba, transfer_request;
|
|
|
|
if (!bdrv_is_inserted(s->bs)) {
|
|
ide_atapi_cmd_error(s, SENSE_NOT_READY,
|
|
ASC_MEDIUM_NOT_PRESENT);
|
|
break;
|
|
}
|
|
nb_sectors = (packet[6] << 16) | (packet[7] << 8) | packet[8];
|
|
lba = ube32_to_cpu(packet + 2);
|
|
if (nb_sectors == 0) {
|
|
ide_atapi_cmd_ok(s);
|
|
break;
|
|
}
|
|
if (((int64_t)(lba + nb_sectors) << 2) > s->nb_sectors) {
|
|
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
|
|
ASC_LOGICAL_BLOCK_OOR);
|
|
break;
|
|
}
|
|
transfer_request = packet[9];
|
|
switch(transfer_request & 0xf8) {
|
|
case 0x00:
|
|
/* nothing */
|
|
ide_atapi_cmd_ok(s);
|
|
break;
|
|
case 0x10:
|
|
/* normal read */
|
|
ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
|
|
break;
|
|
case 0xf8:
|
|
/* read all data */
|
|
ide_atapi_cmd_read(s, lba, nb_sectors, 2352);
|
|
break;
|
|
default:
|
|
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
|
|
ASC_INV_FIELD_IN_CMD_PACKET);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case GPCMD_SEEK:
|
|
{
|
|
int lba;
|
|
if (!bdrv_is_inserted(s->bs)) {
|
|
ide_atapi_cmd_error(s, SENSE_NOT_READY,
|
|
ASC_MEDIUM_NOT_PRESENT);
|
|
break;
|
|
}
|
|
lba = ube32_to_cpu(packet + 2);
|
|
if (((int64_t)lba << 2) > s->nb_sectors) {
|
|
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
|
|
ASC_LOGICAL_BLOCK_OOR);
|
|
break;
|
|
}
|
|
ide_atapi_cmd_ok(s);
|
|
}
|
|
break;
|
|
case GPCMD_START_STOP_UNIT:
|
|
{
|
|
int start, eject;
|
|
start = packet[4] & 1;
|
|
eject = (packet[4] >> 1) & 1;
|
|
|
|
if (eject && !start) {
|
|
/* eject the disk */
|
|
bdrv_close(s->bs);
|
|
}
|
|
ide_atapi_cmd_ok(s);
|
|
}
|
|
break;
|
|
case GPCMD_MECHANISM_STATUS:
|
|
{
|
|
max_len = ube16_to_cpu(packet + 8);
|
|
cpu_to_ube16(buf, 0);
|
|
/* no current LBA */
|
|
buf[2] = 0;
|
|
buf[3] = 0;
|
|
buf[4] = 0;
|
|
buf[5] = 1;
|
|
cpu_to_ube16(buf + 6, 0);
|
|
ide_atapi_cmd_reply(s, 8, max_len);
|
|
}
|
|
break;
|
|
case GPCMD_READ_TOC_PMA_ATIP:
|
|
{
|
|
int format, msf, start_track, len;
|
|
|
|
if (!bdrv_is_inserted(s->bs)) {
|
|
ide_atapi_cmd_error(s, SENSE_NOT_READY,
|
|
ASC_MEDIUM_NOT_PRESENT);
|
|
break;
|
|
}
|
|
max_len = ube16_to_cpu(packet + 7);
|
|
format = packet[9] >> 6;
|
|
msf = (packet[1] >> 1) & 1;
|
|
start_track = packet[6];
|
|
switch(format) {
|
|
case 0:
|
|
len = cdrom_read_toc(s, buf, msf, start_track);
|
|
if (len < 0)
|
|
goto error_cmd;
|
|
ide_atapi_cmd_reply(s, len, max_len);
|
|
break;
|
|
case 1:
|
|
/* multi session : only a single session defined */
|
|
memset(buf, 0, 12);
|
|
buf[1] = 0x0a;
|
|
buf[2] = 0x01;
|
|
buf[3] = 0x01;
|
|
ide_atapi_cmd_reply(s, 12, max_len);
|
|
break;
|
|
case 2:
|
|
len = cdrom_read_toc_raw(s, buf, msf, start_track);
|
|
if (len < 0)
|
|
goto error_cmd;
|
|
ide_atapi_cmd_reply(s, len, max_len);
|
|
break;
|
|
default:
|
|
error_cmd:
|
|
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
|
|
ASC_INV_FIELD_IN_CMD_PACKET);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case GPCMD_READ_CDVD_CAPACITY:
|
|
if (!bdrv_is_inserted(s->bs)) {
|
|
ide_atapi_cmd_error(s, SENSE_NOT_READY,
|
|
ASC_MEDIUM_NOT_PRESENT);
|
|
break;
|
|
}
|
|
/* NOTE: it is really the number of sectors minus 1 */
|
|
cpu_to_ube32(buf, (s->nb_sectors >> 2) - 1);
|
|
cpu_to_ube32(buf + 4, 2048);
|
|
ide_atapi_cmd_reply(s, 8, 8);
|
|
break;
|
|
case GPCMD_INQUIRY:
|
|
max_len = packet[4];
|
|
buf[0] = 0x05; /* CD-ROM */
|
|
buf[1] = 0x80; /* removable */
|
|
buf[2] = 0x00; /* ISO */
|
|
buf[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */
|
|
buf[4] = 31; /* additionnal length */
|
|
buf[5] = 0; /* reserved */
|
|
buf[6] = 0; /* reserved */
|
|
buf[7] = 0; /* reserved */
|
|
padstr8(buf + 8, 8, "QEMU");
|
|
padstr8(buf + 16, 16, "QEMU CD-ROM");
|
|
padstr8(buf + 32, 4, QEMU_VERSION);
|
|
ide_atapi_cmd_reply(s, 36, max_len);
|
|
break;
|
|
default:
|
|
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
|
|
ASC_ILLEGAL_OPCODE);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* called when the inserted state of the media has changed */
|
|
static void cdrom_change_cb(void *opaque)
|
|
{
|
|
IDEState *s = opaque;
|
|
int64_t nb_sectors;
|
|
|
|
/* XXX: send interrupt too */
|
|
bdrv_get_geometry(s->bs, &nb_sectors);
|
|
s->nb_sectors = nb_sectors;
|
|
}
|
|
|
|
static void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
|
|
{
|
|
IDEState *ide_if = opaque;
|
|
IDEState *s;
|
|
int unit, n;
|
|
|
|
#ifdef DEBUG_IDE
|
|
printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
|
|
#endif
|
|
addr &= 7;
|
|
switch(addr) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
/* NOTE: data is written to the two drives */
|
|
ide_if[0].feature = val;
|
|
ide_if[1].feature = val;
|
|
break;
|
|
case 2:
|
|
if (val == 0)
|
|
val = 256;
|
|
ide_if[0].nsector = val;
|
|
ide_if[1].nsector = val;
|
|
break;
|
|
case 3:
|
|
ide_if[0].sector = val;
|
|
ide_if[1].sector = val;
|
|
break;
|
|
case 4:
|
|
ide_if[0].lcyl = val;
|
|
ide_if[1].lcyl = val;
|
|
break;
|
|
case 5:
|
|
ide_if[0].hcyl = val;
|
|
ide_if[1].hcyl = val;
|
|
break;
|
|
case 6:
|
|
ide_if[0].select = (val & ~0x10) | 0xa0;
|
|
ide_if[1].select = (val | 0x10) | 0xa0;
|
|
/* select drive */
|
|
unit = (val >> 4) & 1;
|
|
s = ide_if + unit;
|
|
ide_if->cur_drive = s;
|
|
#ifdef TARGET_PPC
|
|
/* XXX: currently a workaround for Darwin/PPC. Need to check
|
|
the IDE spec to see if it is correct */
|
|
ide_set_signature(s);
|
|
#endif
|
|
break;
|
|
default:
|
|
case 7:
|
|
/* command */
|
|
#if defined(DEBUG_IDE)
|
|
printf("ide: CMD=%02x\n", val);
|
|
#endif
|
|
s = ide_if->cur_drive;
|
|
/* ignore commands to non existant slave */
|
|
if (s != ide_if && !s->bs)
|
|
break;
|
|
switch(val) {
|
|
case WIN_IDENTIFY:
|
|
if (s->bs && !s->is_cdrom) {
|
|
ide_identify(s);
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
|
|
} else {
|
|
if (s->is_cdrom) {
|
|
ide_set_signature(s);
|
|
}
|
|
ide_abort_command(s);
|
|
}
|
|
ide_set_irq(s);
|
|
break;
|
|
case WIN_SPECIFY:
|
|
case WIN_RECAL:
|
|
s->error = 0;
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_set_irq(s);
|
|
break;
|
|
case WIN_SETMULT:
|
|
if (s->nsector > MAX_MULT_SECTORS ||
|
|
s->nsector == 0 ||
|
|
(s->nsector & (s->nsector - 1)) != 0) {
|
|
ide_abort_command(s);
|
|
} else {
|
|
s->mult_sectors = s->nsector;
|
|
s->status = READY_STAT;
|
|
}
|
|
ide_set_irq(s);
|
|
break;
|
|
case WIN_VERIFY:
|
|
case WIN_VERIFY_ONCE:
|
|
/* do sector number check ? */
|
|
s->status = READY_STAT;
|
|
ide_set_irq(s);
|
|
break;
|
|
case WIN_READ:
|
|
case WIN_READ_ONCE:
|
|
if (!s->bs)
|
|
goto abort_cmd;
|
|
s->req_nb_sectors = 1;
|
|
ide_sector_read(s);
|
|
break;
|
|
case WIN_WRITE:
|
|
case WIN_WRITE_ONCE:
|
|
s->error = 0;
|
|
s->status = SEEK_STAT | READY_STAT;
|
|
s->req_nb_sectors = 1;
|
|
ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
|
|
break;
|
|
case WIN_MULTREAD:
|
|
if (!s->mult_sectors)
|
|
goto abort_cmd;
|
|
s->req_nb_sectors = s->mult_sectors;
|
|
ide_sector_read(s);
|
|
break;
|
|
case WIN_MULTWRITE:
|
|
if (!s->mult_sectors)
|
|
goto abort_cmd;
|
|
s->error = 0;
|
|
s->status = SEEK_STAT | READY_STAT;
|
|
s->req_nb_sectors = s->mult_sectors;
|
|
n = s->nsector;
|
|
if (n > s->req_nb_sectors)
|
|
n = s->req_nb_sectors;
|
|
ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
|
|
break;
|
|
case WIN_READDMA:
|
|
case WIN_READDMA_ONCE:
|
|
if (!s->bs)
|
|
goto abort_cmd;
|
|
ide_sector_read_dma(s);
|
|
break;
|
|
case WIN_WRITEDMA:
|
|
case WIN_WRITEDMA_ONCE:
|
|
if (!s->bs)
|
|
goto abort_cmd;
|
|
ide_sector_write_dma(s);
|
|
break;
|
|
case WIN_READ_NATIVE_MAX:
|
|
ide_set_sector(s, s->nb_sectors - 1);
|
|
s->status = READY_STAT;
|
|
ide_set_irq(s);
|
|
break;
|
|
case WIN_CHECKPOWERMODE1:
|
|
s->nsector = 0xff; /* device active or idle */
|
|
s->status = READY_STAT;
|
|
ide_set_irq(s);
|
|
break;
|
|
case WIN_SETFEATURES:
|
|
if (!s->bs)
|
|
goto abort_cmd;
|
|
/* XXX: valid for CDROM ? */
|
|
switch(s->feature) {
|
|
case 0x02: /* write cache enable */
|
|
case 0x03: /* set transfer mode */
|
|
case 0x82: /* write cache disable */
|
|
case 0xaa: /* read look-ahead enable */
|
|
case 0x55: /* read look-ahead disable */
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_set_irq(s);
|
|
break;
|
|
default:
|
|
goto abort_cmd;
|
|
}
|
|
break;
|
|
case WIN_STANDBYNOW1:
|
|
case WIN_IDLEIMMEDIATE:
|
|
case WIN_FLUSH_CACHE:
|
|
s->status = READY_STAT;
|
|
ide_set_irq(s);
|
|
break;
|
|
/* ATAPI commands */
|
|
case WIN_PIDENTIFY:
|
|
if (s->is_cdrom) {
|
|
ide_atapi_identify(s);
|
|
s->status = READY_STAT;
|
|
ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
|
|
} else {
|
|
ide_abort_command(s);
|
|
}
|
|
ide_set_irq(s);
|
|
break;
|
|
case WIN_DIAGNOSE:
|
|
ide_set_signature(s);
|
|
s->status = 0x00; /* NOTE: READY is _not_ set */
|
|
s->error = 0x01;
|
|
break;
|
|
case WIN_SRST:
|
|
if (!s->is_cdrom)
|
|
goto abort_cmd;
|
|
ide_set_signature(s);
|
|
s->status = 0x00; /* NOTE: READY is _not_ set */
|
|
s->error = 0x01;
|
|
break;
|
|
case WIN_PACKETCMD:
|
|
if (!s->is_cdrom)
|
|
goto abort_cmd;
|
|
/* overlapping commands not supported */
|
|
if (s->feature & 0x02)
|
|
goto abort_cmd;
|
|
s->atapi_dma = s->feature & 1;
|
|
s->nsector = 1;
|
|
ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
|
|
ide_atapi_cmd);
|
|
break;
|
|
default:
|
|
abort_cmd:
|
|
ide_abort_command(s);
|
|
ide_set_irq(s);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
|
|
{
|
|
IDEState *ide_if = opaque;
|
|
IDEState *s = ide_if->cur_drive;
|
|
uint32_t addr;
|
|
int ret;
|
|
|
|
addr = addr1 & 7;
|
|
switch(addr) {
|
|
case 0:
|
|
ret = 0xff;
|
|
break;
|
|
case 1:
|
|
if (!ide_if[0].bs && !ide_if[1].bs)
|
|
ret = 0;
|
|
else
|
|
ret = s->error;
|
|
break;
|
|
case 2:
|
|
if (!ide_if[0].bs && !ide_if[1].bs)
|
|
ret = 0;
|
|
else
|
|
ret = s->nsector & 0xff;
|
|
break;
|
|
case 3:
|
|
if (!ide_if[0].bs && !ide_if[1].bs)
|
|
ret = 0;
|
|
else
|
|
ret = s->sector;
|
|
break;
|
|
case 4:
|
|
if (!ide_if[0].bs && !ide_if[1].bs)
|
|
ret = 0;
|
|
else
|
|
ret = s->lcyl;
|
|
break;
|
|
case 5:
|
|
if (!ide_if[0].bs && !ide_if[1].bs)
|
|
ret = 0;
|
|
else
|
|
ret = s->hcyl;
|
|
break;
|
|
case 6:
|
|
if (!ide_if[0].bs && !ide_if[1].bs)
|
|
ret = 0;
|
|
else
|
|
ret = s->select;
|
|
break;
|
|
default:
|
|
case 7:
|
|
if ((!ide_if[0].bs && !ide_if[1].bs) ||
|
|
(s != ide_if && !s->bs))
|
|
ret = 0;
|
|
else
|
|
ret = s->status;
|
|
s->set_irq(s->irq_opaque, s->irq, 0);
|
|
break;
|
|
}
|
|
#ifdef DEBUG_IDE
|
|
printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
static uint32_t ide_status_read(void *opaque, uint32_t addr)
|
|
{
|
|
IDEState *ide_if = opaque;
|
|
IDEState *s = ide_if->cur_drive;
|
|
int ret;
|
|
|
|
if ((!ide_if[0].bs && !ide_if[1].bs) ||
|
|
(s != ide_if && !s->bs))
|
|
ret = 0;
|
|
else
|
|
ret = s->status;
|
|
#ifdef DEBUG_IDE
|
|
printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
static void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val)
|
|
{
|
|
IDEState *ide_if = opaque;
|
|
IDEState *s;
|
|
int i;
|
|
|
|
#ifdef DEBUG_IDE
|
|
printf("ide: write control addr=0x%x val=%02x\n", addr, val);
|
|
#endif
|
|
/* common for both drives */
|
|
if (!(ide_if[0].cmd & IDE_CMD_RESET) &&
|
|
(val & IDE_CMD_RESET)) {
|
|
/* reset low to high */
|
|
for(i = 0;i < 2; i++) {
|
|
s = &ide_if[i];
|
|
s->status = BUSY_STAT | SEEK_STAT;
|
|
s->error = 0x01;
|
|
}
|
|
} else if ((ide_if[0].cmd & IDE_CMD_RESET) &&
|
|
!(val & IDE_CMD_RESET)) {
|
|
/* high to low */
|
|
for(i = 0;i < 2; i++) {
|
|
s = &ide_if[i];
|
|
if (s->is_cdrom)
|
|
s->status = 0x00; /* NOTE: READY is _not_ set */
|
|
else
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_set_signature(s);
|
|
}
|
|
}
|
|
|
|
ide_if[0].cmd = val;
|
|
ide_if[1].cmd = val;
|
|
}
|
|
|
|
static void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
|
|
{
|
|
IDEState *s = ((IDEState *)opaque)->cur_drive;
|
|
uint8_t *p;
|
|
|
|
p = s->data_ptr;
|
|
*(uint16_t *)p = le16_to_cpu(val);
|
|
p += 2;
|
|
s->data_ptr = p;
|
|
if (p >= s->data_end)
|
|
s->end_transfer_func(s);
|
|
}
|
|
|
|
static uint32_t ide_data_readw(void *opaque, uint32_t addr)
|
|
{
|
|
IDEState *s = ((IDEState *)opaque)->cur_drive;
|
|
uint8_t *p;
|
|
int ret;
|
|
p = s->data_ptr;
|
|
ret = cpu_to_le16(*(uint16_t *)p);
|
|
p += 2;
|
|
s->data_ptr = p;
|
|
if (p >= s->data_end)
|
|
s->end_transfer_func(s);
|
|
return ret;
|
|
}
|
|
|
|
static void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
|
|
{
|
|
IDEState *s = ((IDEState *)opaque)->cur_drive;
|
|
uint8_t *p;
|
|
|
|
p = s->data_ptr;
|
|
*(uint32_t *)p = le32_to_cpu(val);
|
|
p += 4;
|
|
s->data_ptr = p;
|
|
if (p >= s->data_end)
|
|
s->end_transfer_func(s);
|
|
}
|
|
|
|
static uint32_t ide_data_readl(void *opaque, uint32_t addr)
|
|
{
|
|
IDEState *s = ((IDEState *)opaque)->cur_drive;
|
|
uint8_t *p;
|
|
int ret;
|
|
|
|
p = s->data_ptr;
|
|
ret = cpu_to_le32(*(uint32_t *)p);
|
|
p += 4;
|
|
s->data_ptr = p;
|
|
if (p >= s->data_end)
|
|
s->end_transfer_func(s);
|
|
return ret;
|
|
}
|
|
|
|
static void ide_dummy_transfer_stop(IDEState *s)
|
|
{
|
|
s->data_ptr = s->io_buffer;
|
|
s->data_end = s->io_buffer;
|
|
s->io_buffer[0] = 0xff;
|
|
s->io_buffer[1] = 0xff;
|
|
s->io_buffer[2] = 0xff;
|
|
s->io_buffer[3] = 0xff;
|
|
}
|
|
|
|
static void ide_reset(IDEState *s)
|
|
{
|
|
s->mult_sectors = MAX_MULT_SECTORS;
|
|
s->cur_drive = s;
|
|
s->select = 0xa0;
|
|
s->status = READY_STAT;
|
|
ide_set_signature(s);
|
|
/* init the transfer handler so that 0xffff is returned on data
|
|
accesses */
|
|
s->end_transfer_func = ide_dummy_transfer_stop;
|
|
ide_dummy_transfer_stop(s);
|
|
}
|
|
|
|
struct partition {
|
|
uint8_t boot_ind; /* 0x80 - active */
|
|
uint8_t head; /* starting head */
|
|
uint8_t sector; /* starting sector */
|
|
uint8_t cyl; /* starting cylinder */
|
|
uint8_t sys_ind; /* What partition type */
|
|
uint8_t end_head; /* end head */
|
|
uint8_t end_sector; /* end sector */
|
|
uint8_t end_cyl; /* end cylinder */
|
|
uint32_t start_sect; /* starting sector counting from 0 */
|
|
uint32_t nr_sects; /* nr of sectors in partition */
|
|
} __attribute__((packed));
|
|
|
|
/* try to guess the disk logical geometry from the MSDOS partition table. Return 0 if OK, -1 if could not guess */
|
|
static int guess_disk_lchs(IDEState *s,
|
|
int *pcylinders, int *pheads, int *psectors)
|
|
{
|
|
uint8_t buf[512];
|
|
int ret, i, heads, sectors, cylinders;
|
|
struct partition *p;
|
|
uint32_t nr_sects;
|
|
|
|
ret = bdrv_read(s->bs, 0, buf, 1);
|
|
if (ret < 0)
|
|
return -1;
|
|
/* test msdos magic */
|
|
if (buf[510] != 0x55 || buf[511] != 0xaa)
|
|
return -1;
|
|
for(i = 0; i < 4; i++) {
|
|
p = ((struct partition *)(buf + 0x1be)) + i;
|
|
nr_sects = le32_to_cpu(p->nr_sects);
|
|
if (nr_sects && p->end_head) {
|
|
/* We make the assumption that the partition terminates on
|
|
a cylinder boundary */
|
|
heads = p->end_head + 1;
|
|
sectors = p->end_sector & 63;
|
|
if (sectors == 0)
|
|
continue;
|
|
cylinders = s->nb_sectors / (heads * sectors);
|
|
if (cylinders < 1 || cylinders > 16383)
|
|
continue;
|
|
*pheads = heads;
|
|
*psectors = sectors;
|
|
*pcylinders = cylinders;
|
|
#if 0
|
|
printf("guessed geometry: LCHS=%d %d %d\n",
|
|
cylinders, heads, sectors);
|
|
#endif
|
|
return 0;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static void ide_init2(IDEState *ide_state,
|
|
BlockDriverState *hd0, BlockDriverState *hd1,
|
|
SetIRQFunc *set_irq, void *irq_opaque, int irq)
|
|
{
|
|
IDEState *s;
|
|
static int drive_serial = 1;
|
|
int i, cylinders, heads, secs, translation;
|
|
int64_t nb_sectors;
|
|
|
|
for(i = 0; i < 2; i++) {
|
|
s = ide_state + i;
|
|
if (i == 0)
|
|
s->bs = hd0;
|
|
else
|
|
s->bs = hd1;
|
|
if (s->bs) {
|
|
bdrv_get_geometry(s->bs, &nb_sectors);
|
|
s->nb_sectors = nb_sectors;
|
|
/* if a geometry hint is available, use it */
|
|
bdrv_get_geometry_hint(s->bs, &cylinders, &heads, &secs);
|
|
if (cylinders != 0) {
|
|
s->cylinders = cylinders;
|
|
s->heads = heads;
|
|
s->sectors = secs;
|
|
} else {
|
|
if (guess_disk_lchs(s, &cylinders, &heads, &secs) == 0) {
|
|
if (heads > 16) {
|
|
/* if heads > 16, it means that a BIOS LBA
|
|
translation was active, so the default
|
|
hardware geometry is OK */
|
|
goto default_geometry;
|
|
} else {
|
|
s->cylinders = cylinders;
|
|
s->heads = heads;
|
|
s->sectors = secs;
|
|
/* disable any translation to be in sync with
|
|
the logical geometry */
|
|
translation = bdrv_get_translation_hint(s->bs);
|
|
if (translation == BIOS_ATA_TRANSLATION_AUTO) {
|
|
bdrv_set_translation_hint(s->bs,
|
|
BIOS_ATA_TRANSLATION_NONE);
|
|
}
|
|
}
|
|
} else {
|
|
default_geometry:
|
|
/* if no geometry, use a standard physical disk geometry */
|
|
cylinders = nb_sectors / (16 * 63);
|
|
if (cylinders > 16383)
|
|
cylinders = 16383;
|
|
else if (cylinders < 2)
|
|
cylinders = 2;
|
|
s->cylinders = cylinders;
|
|
s->heads = 16;
|
|
s->sectors = 63;
|
|
}
|
|
bdrv_set_geometry_hint(s->bs, s->cylinders, s->heads, s->sectors);
|
|
}
|
|
if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
|
|
s->is_cdrom = 1;
|
|
bdrv_set_change_cb(s->bs, cdrom_change_cb, s);
|
|
}
|
|
}
|
|
s->drive_serial = drive_serial++;
|
|
s->set_irq = set_irq;
|
|
s->irq_opaque = irq_opaque;
|
|
s->irq = irq;
|
|
s->sector_write_timer = qemu_new_timer(vm_clock,
|
|
ide_sector_write_timer_cb, s);
|
|
ide_reset(s);
|
|
}
|
|
}
|
|
|
|
static void ide_init_ioport(IDEState *ide_state, int iobase, int iobase2)
|
|
{
|
|
register_ioport_write(iobase, 8, 1, ide_ioport_write, ide_state);
|
|
register_ioport_read(iobase, 8, 1, ide_ioport_read, ide_state);
|
|
if (iobase2) {
|
|
register_ioport_read(iobase2, 1, 1, ide_status_read, ide_state);
|
|
register_ioport_write(iobase2, 1, 1, ide_cmd_write, ide_state);
|
|
}
|
|
|
|
/* data ports */
|
|
register_ioport_write(iobase, 2, 2, ide_data_writew, ide_state);
|
|
register_ioport_read(iobase, 2, 2, ide_data_readw, ide_state);
|
|
register_ioport_write(iobase, 4, 4, ide_data_writel, ide_state);
|
|
register_ioport_read(iobase, 4, 4, ide_data_readl, ide_state);
|
|
}
|
|
|
|
/***********************************************************/
|
|
/* ISA IDE definitions */
|
|
|
|
void isa_ide_init(int iobase, int iobase2, int irq,
|
|
BlockDriverState *hd0, BlockDriverState *hd1)
|
|
{
|
|
IDEState *ide_state;
|
|
|
|
ide_state = qemu_mallocz(sizeof(IDEState) * 2);
|
|
if (!ide_state)
|
|
return;
|
|
|
|
ide_init2(ide_state, hd0, hd1, pic_set_irq_new, NULL, irq);
|
|
ide_init_ioport(ide_state, iobase, iobase2);
|
|
}
|
|
|
|
/***********************************************************/
|
|
/* PCI IDE definitions */
|
|
|
|
static void cmd646_update_irq(PCIIDEState *d);
|
|
|
|
static void ide_map(PCIDevice *pci_dev, int region_num,
|
|
uint32_t addr, uint32_t size, int type)
|
|
{
|
|
PCIIDEState *d = (PCIIDEState *)pci_dev;
|
|
IDEState *ide_state;
|
|
|
|
if (region_num <= 3) {
|
|
ide_state = &d->ide_if[(region_num >> 1) * 2];
|
|
if (region_num & 1) {
|
|
register_ioport_read(addr + 2, 1, 1, ide_status_read, ide_state);
|
|
register_ioport_write(addr + 2, 1, 1, ide_cmd_write, ide_state);
|
|
} else {
|
|
register_ioport_write(addr, 8, 1, ide_ioport_write, ide_state);
|
|
register_ioport_read(addr, 8, 1, ide_ioport_read, ide_state);
|
|
|
|
/* data ports */
|
|
register_ioport_write(addr, 2, 2, ide_data_writew, ide_state);
|
|
register_ioport_read(addr, 2, 2, ide_data_readw, ide_state);
|
|
register_ioport_write(addr, 4, 4, ide_data_writel, ide_state);
|
|
register_ioport_read(addr, 4, 4, ide_data_readl, ide_state);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* XXX: full callback usage to prepare non blocking I/Os support -
|
|
error handling */
|
|
static void ide_dma_loop(BMDMAState *bm)
|
|
{
|
|
struct {
|
|
uint32_t addr;
|
|
uint32_t size;
|
|
} prd;
|
|
target_phys_addr_t cur_addr;
|
|
int len, i, len1;
|
|
|
|
cur_addr = bm->addr;
|
|
/* at most one page to avoid hanging if erroneous parameters */
|
|
for(i = 0; i < 512; i++) {
|
|
cpu_physical_memory_read(cur_addr, (uint8_t *)&prd, 8);
|
|
prd.addr = le32_to_cpu(prd.addr);
|
|
prd.size = le32_to_cpu(prd.size);
|
|
#ifdef DEBUG_IDE
|
|
printf("ide: dma: prd: %08x: addr=0x%08x size=0x%08x\n",
|
|
(int)cur_addr, prd.addr, prd.size);
|
|
#endif
|
|
len = prd.size & 0xfffe;
|
|
if (len == 0)
|
|
len = 0x10000;
|
|
while (len > 0) {
|
|
len1 = bm->dma_cb(bm->ide_if, prd.addr, len);
|
|
if (len1 == 0)
|
|
goto the_end;
|
|
prd.addr += len1;
|
|
len -= len1;
|
|
}
|
|
/* end of transfer */
|
|
if (prd.size & 0x80000000)
|
|
break;
|
|
cur_addr += 8;
|
|
}
|
|
/* end of transfer */
|
|
the_end:
|
|
bm->status &= ~BM_STATUS_DMAING;
|
|
bm->status |= BM_STATUS_INT;
|
|
bm->dma_cb = NULL;
|
|
bm->ide_if = NULL;
|
|
}
|
|
|
|
static void ide_dma_start(IDEState *s, IDEDMAFunc *dma_cb)
|
|
{
|
|
BMDMAState *bm = s->bmdma;
|
|
if(!bm)
|
|
return;
|
|
bm->ide_if = s;
|
|
bm->dma_cb = dma_cb;
|
|
if (bm->status & BM_STATUS_DMAING) {
|
|
ide_dma_loop(bm);
|
|
}
|
|
}
|
|
|
|
static void bmdma_cmd_writeb(void *opaque, uint32_t addr, uint32_t val)
|
|
{
|
|
BMDMAState *bm = opaque;
|
|
#ifdef DEBUG_IDE
|
|
printf("%s: 0x%08x\n", __func__, val);
|
|
#endif
|
|
if (!(val & BM_CMD_START)) {
|
|
/* XXX: do it better */
|
|
bm->status &= ~BM_STATUS_DMAING;
|
|
bm->cmd = val & 0x09;
|
|
} else {
|
|
bm->status |= BM_STATUS_DMAING;
|
|
bm->cmd = val & 0x09;
|
|
/* start dma transfer if possible */
|
|
if (bm->dma_cb)
|
|
ide_dma_loop(bm);
|
|
}
|
|
}
|
|
|
|
static uint32_t bmdma_readb(void *opaque, uint32_t addr)
|
|
{
|
|
BMDMAState *bm = opaque;
|
|
PCIIDEState *pci_dev;
|
|
uint32_t val;
|
|
|
|
switch(addr & 3) {
|
|
case 0:
|
|
val = bm->cmd;
|
|
break;
|
|
case 1:
|
|
pci_dev = bm->pci_dev;
|
|
if (pci_dev->type == IDE_TYPE_CMD646) {
|
|
val = pci_dev->dev.config[MRDMODE];
|
|
} else {
|
|
val = 0xff;
|
|
}
|
|
break;
|
|
case 2:
|
|
val = bm->status;
|
|
break;
|
|
case 3:
|
|
pci_dev = bm->pci_dev;
|
|
if (pci_dev->type == IDE_TYPE_CMD646) {
|
|
if (bm == &pci_dev->bmdma[0])
|
|
val = pci_dev->dev.config[UDIDETCR0];
|
|
else
|
|
val = pci_dev->dev.config[UDIDETCR1];
|
|
} else {
|
|
val = 0xff;
|
|
}
|
|
break;
|
|
default:
|
|
val = 0xff;
|
|
break;
|
|
}
|
|
#ifdef DEBUG_IDE
|
|
printf("bmdma: readb 0x%02x : 0x%02x\n", addr, val);
|
|
#endif
|
|
return val;
|
|
}
|
|
|
|
static void bmdma_writeb(void *opaque, uint32_t addr, uint32_t val)
|
|
{
|
|
BMDMAState *bm = opaque;
|
|
PCIIDEState *pci_dev;
|
|
#ifdef DEBUG_IDE
|
|
printf("bmdma: writeb 0x%02x : 0x%02x\n", addr, val);
|
|
#endif
|
|
switch(addr & 3) {
|
|
case 1:
|
|
pci_dev = bm->pci_dev;
|
|
if (pci_dev->type == IDE_TYPE_CMD646) {
|
|
pci_dev->dev.config[MRDMODE] =
|
|
(pci_dev->dev.config[MRDMODE] & ~0x30) | (val & 0x30);
|
|
cmd646_update_irq(pci_dev);
|
|
}
|
|
break;
|
|
case 2:
|
|
bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
|
|
break;
|
|
case 3:
|
|
pci_dev = bm->pci_dev;
|
|
if (pci_dev->type == IDE_TYPE_CMD646) {
|
|
if (bm == &pci_dev->bmdma[0])
|
|
pci_dev->dev.config[UDIDETCR0] = val;
|
|
else
|
|
pci_dev->dev.config[UDIDETCR1] = val;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static uint32_t bmdma_addr_readl(void *opaque, uint32_t addr)
|
|
{
|
|
BMDMAState *bm = opaque;
|
|
uint32_t val;
|
|
val = bm->addr;
|
|
#ifdef DEBUG_IDE
|
|
printf("%s: 0x%08x\n", __func__, val);
|
|
#endif
|
|
return val;
|
|
}
|
|
|
|
static void bmdma_addr_writel(void *opaque, uint32_t addr, uint32_t val)
|
|
{
|
|
BMDMAState *bm = opaque;
|
|
#ifdef DEBUG_IDE
|
|
printf("%s: 0x%08x\n", __func__, val);
|
|
#endif
|
|
bm->addr = val & ~3;
|
|
}
|
|
|
|
static void bmdma_map(PCIDevice *pci_dev, int region_num,
|
|
uint32_t addr, uint32_t size, int type)
|
|
{
|
|
PCIIDEState *d = (PCIIDEState *)pci_dev;
|
|
int i;
|
|
|
|
for(i = 0;i < 2; i++) {
|
|
BMDMAState *bm = &d->bmdma[i];
|
|
d->ide_if[2 * i].bmdma = bm;
|
|
d->ide_if[2 * i + 1].bmdma = bm;
|
|
bm->pci_dev = (PCIIDEState *)pci_dev;
|
|
|
|
register_ioport_write(addr, 1, 1, bmdma_cmd_writeb, bm);
|
|
|
|
register_ioport_write(addr + 1, 3, 1, bmdma_writeb, bm);
|
|
register_ioport_read(addr, 4, 1, bmdma_readb, bm);
|
|
|
|
register_ioport_write(addr + 4, 4, 4, bmdma_addr_writel, bm);
|
|
register_ioport_read(addr + 4, 4, 4, bmdma_addr_readl, bm);
|
|
addr += 8;
|
|
}
|
|
}
|
|
|
|
/* XXX: call it also when the MRDMODE is changed from the PCI config
|
|
registers */
|
|
static void cmd646_update_irq(PCIIDEState *d)
|
|
{
|
|
int pci_level;
|
|
pci_level = ((d->dev.config[MRDMODE] & MRDMODE_INTR_CH0) &&
|
|
!(d->dev.config[MRDMODE] & MRDMODE_BLK_CH0)) ||
|
|
((d->dev.config[MRDMODE] & MRDMODE_INTR_CH1) &&
|
|
!(d->dev.config[MRDMODE] & MRDMODE_BLK_CH1));
|
|
pci_set_irq((PCIDevice *)d, 0, pci_level);
|
|
}
|
|
|
|
/* the PCI irq level is the logical OR of the two channels */
|
|
static void cmd646_set_irq(void *opaque, int channel, int level)
|
|
{
|
|
PCIIDEState *d = opaque;
|
|
int irq_mask;
|
|
|
|
irq_mask = MRDMODE_INTR_CH0 << channel;
|
|
if (level)
|
|
d->dev.config[MRDMODE] |= irq_mask;
|
|
else
|
|
d->dev.config[MRDMODE] &= ~irq_mask;
|
|
cmd646_update_irq(d);
|
|
}
|
|
|
|
/* CMD646 PCI IDE controller */
|
|
void pci_cmd646_ide_init(PCIBus *bus, BlockDriverState **hd_table,
|
|
int secondary_ide_enabled)
|
|
{
|
|
PCIIDEState *d;
|
|
uint8_t *pci_conf;
|
|
int i;
|
|
|
|
d = (PCIIDEState *)pci_register_device(bus, "CMD646 IDE",
|
|
sizeof(PCIIDEState),
|
|
-1,
|
|
NULL, NULL);
|
|
d->type = IDE_TYPE_CMD646;
|
|
pci_conf = d->dev.config;
|
|
pci_conf[0x00] = 0x95; // CMD646
|
|
pci_conf[0x01] = 0x10;
|
|
pci_conf[0x02] = 0x46;
|
|
pci_conf[0x03] = 0x06;
|
|
|
|
pci_conf[0x08] = 0x07; // IDE controller revision
|
|
pci_conf[0x09] = 0x8f;
|
|
|
|
pci_conf[0x0a] = 0x01; // class_sub = PCI_IDE
|
|
pci_conf[0x0b] = 0x01; // class_base = PCI_mass_storage
|
|
pci_conf[0x0e] = 0x00; // header_type
|
|
|
|
if (secondary_ide_enabled) {
|
|
/* XXX: if not enabled, really disable the seconday IDE controller */
|
|
pci_conf[0x51] = 0x80; /* enable IDE1 */
|
|
}
|
|
|
|
pci_register_io_region((PCIDevice *)d, 0, 0x8,
|
|
PCI_ADDRESS_SPACE_IO, ide_map);
|
|
pci_register_io_region((PCIDevice *)d, 1, 0x4,
|
|
PCI_ADDRESS_SPACE_IO, ide_map);
|
|
pci_register_io_region((PCIDevice *)d, 2, 0x8,
|
|
PCI_ADDRESS_SPACE_IO, ide_map);
|
|
pci_register_io_region((PCIDevice *)d, 3, 0x4,
|
|
PCI_ADDRESS_SPACE_IO, ide_map);
|
|
pci_register_io_region((PCIDevice *)d, 4, 0x10,
|
|
PCI_ADDRESS_SPACE_IO, bmdma_map);
|
|
|
|
pci_conf[0x3d] = 0x01; // interrupt on pin 1
|
|
|
|
for(i = 0; i < 4; i++)
|
|
d->ide_if[i].pci_dev = (PCIDevice *)d;
|
|
ide_init2(&d->ide_if[0], hd_table[0], hd_table[1],
|
|
cmd646_set_irq, d, 0);
|
|
ide_init2(&d->ide_if[2], hd_table[2], hd_table[3],
|
|
cmd646_set_irq, d, 1);
|
|
}
|
|
|
|
/* hd_table must contain 4 block drivers */
|
|
/* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */
|
|
void pci_piix3_ide_init(PCIBus *bus, BlockDriverState **hd_table)
|
|
{
|
|
PCIIDEState *d;
|
|
uint8_t *pci_conf;
|
|
|
|
/* register a function 1 of PIIX3 */
|
|
d = (PCIIDEState *)pci_register_device(bus, "PIIX3 IDE",
|
|
sizeof(PCIIDEState),
|
|
((PCIDevice *)piix3_state)->devfn + 1,
|
|
NULL, NULL);
|
|
d->type = IDE_TYPE_PIIX3;
|
|
|
|
pci_conf = d->dev.config;
|
|
pci_conf[0x00] = 0x86; // Intel
|
|
pci_conf[0x01] = 0x80;
|
|
pci_conf[0x02] = 0x10;
|
|
pci_conf[0x03] = 0x70;
|
|
pci_conf[0x0a] = 0x01; // class_sub = PCI_IDE
|
|
pci_conf[0x0b] = 0x01; // class_base = PCI_mass_storage
|
|
pci_conf[0x0e] = 0x00; // header_type
|
|
|
|
pci_register_io_region((PCIDevice *)d, 4, 0x10,
|
|
PCI_ADDRESS_SPACE_IO, bmdma_map);
|
|
|
|
ide_init2(&d->ide_if[0], hd_table[0], hd_table[1],
|
|
pic_set_irq_new, NULL, 14);
|
|
ide_init2(&d->ide_if[2], hd_table[2], hd_table[3],
|
|
pic_set_irq_new, NULL, 15);
|
|
ide_init_ioport(&d->ide_if[0], 0x1f0, 0x3f6);
|
|
ide_init_ioport(&d->ide_if[2], 0x170, 0x376);
|
|
}
|
|
|
|
/***********************************************************/
|
|
/* MacIO based PowerPC IDE */
|
|
|
|
/* PowerMac IDE memory IO */
|
|
static void pmac_ide_writeb (void *opaque,
|
|
target_phys_addr_t addr, uint32_t val)
|
|
{
|
|
addr = (addr & 0xFFF) >> 4;
|
|
switch (addr) {
|
|
case 1 ... 7:
|
|
ide_ioport_write(opaque, addr, val);
|
|
break;
|
|
case 8:
|
|
case 22:
|
|
ide_cmd_write(opaque, 0, val);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static uint32_t pmac_ide_readb (void *opaque,target_phys_addr_t addr)
|
|
{
|
|
uint8_t retval;
|
|
|
|
addr = (addr & 0xFFF) >> 4;
|
|
switch (addr) {
|
|
case 1 ... 7:
|
|
retval = ide_ioport_read(opaque, addr);
|
|
break;
|
|
case 8:
|
|
case 22:
|
|
retval = ide_status_read(opaque, 0);
|
|
break;
|
|
default:
|
|
retval = 0xFF;
|
|
break;
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
static void pmac_ide_writew (void *opaque,
|
|
target_phys_addr_t addr, uint32_t val)
|
|
{
|
|
addr = (addr & 0xFFF) >> 4;
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
val = bswap16(val);
|
|
#endif
|
|
if (addr == 0) {
|
|
ide_data_writew(opaque, 0, val);
|
|
}
|
|
}
|
|
|
|
static uint32_t pmac_ide_readw (void *opaque,target_phys_addr_t addr)
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|
{
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|
uint16_t retval;
|
|
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|
addr = (addr & 0xFFF) >> 4;
|
|
if (addr == 0) {
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|
retval = ide_data_readw(opaque, 0);
|
|
} else {
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|
retval = 0xFFFF;
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|
}
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|
#ifdef TARGET_WORDS_BIGENDIAN
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|
retval = bswap16(retval);
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|
#endif
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|
return retval;
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|
}
|
|
|
|
static void pmac_ide_writel (void *opaque,
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|
target_phys_addr_t addr, uint32_t val)
|
|
{
|
|
addr = (addr & 0xFFF) >> 4;
|
|
#ifdef TARGET_WORDS_BIGENDIAN
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|
val = bswap32(val);
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|
#endif
|
|
if (addr == 0) {
|
|
ide_data_writel(opaque, 0, val);
|
|
}
|
|
}
|
|
|
|
static uint32_t pmac_ide_readl (void *opaque,target_phys_addr_t addr)
|
|
{
|
|
uint32_t retval;
|
|
|
|
addr = (addr & 0xFFF) >> 4;
|
|
if (addr == 0) {
|
|
retval = ide_data_readl(opaque, 0);
|
|
} else {
|
|
retval = 0xFFFFFFFF;
|
|
}
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
retval = bswap32(retval);
|
|
#endif
|
|
return retval;
|
|
}
|
|
|
|
static CPUWriteMemoryFunc *pmac_ide_write[] = {
|
|
pmac_ide_writeb,
|
|
pmac_ide_writew,
|
|
pmac_ide_writel,
|
|
};
|
|
|
|
static CPUReadMemoryFunc *pmac_ide_read[] = {
|
|
pmac_ide_readb,
|
|
pmac_ide_readw,
|
|
pmac_ide_readl,
|
|
};
|
|
|
|
/* hd_table must contain 4 block drivers */
|
|
/* PowerMac uses memory mapped registers, not I/O. Return the memory
|
|
I/O index to access the ide. */
|
|
int pmac_ide_init (BlockDriverState **hd_table,
|
|
SetIRQFunc *set_irq, void *irq_opaque, int irq)
|
|
{
|
|
IDEState *ide_if;
|
|
int pmac_ide_memory;
|
|
|
|
ide_if = qemu_mallocz(sizeof(IDEState) * 2);
|
|
ide_init2(&ide_if[0], hd_table[0], hd_table[1],
|
|
set_irq, irq_opaque, irq);
|
|
|
|
pmac_ide_memory = cpu_register_io_memory(0, pmac_ide_read,
|
|
pmac_ide_write, &ide_if[0]);
|
|
return pmac_ide_memory;
|
|
}
|