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hatari 2.2.0
/*
Hatari - ide.c
This file is distributed under the GNU General Public License, version 2
or at your option any later version. Read the file gpl.txt for details.
This is where we intercept read/writes to/from the IDE controller hardware.
*/
#include <SDL_endian.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "main.h"
#include "configuration.h"
#include "file.h"
#include "ide.h"
#include "hdc.h" /* for partition counting */
#include "m68000.h"
#include "mfp.h"
#include "stMemory.h"
#include "str.h"
#include "sysdeps.h"
#if HAVE_MALLOC_H
# include <malloc.h>
#endif
int nIDEPartitions = 0;
struct IDEState;
static struct IDEState *opaque_ide_if;
static void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val);
static uint32_t ide_ioport_read(void *opaque, uint32_t addr1);
static uint32_t ide_status_read(void *opaque, uint32_t addr);
static void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val);
static void ide_data_writew(void *opaque, uint32_t addr, uint32_t val);
static uint32_t ide_data_readw(void *opaque, uint32_t addr);
static void ide_data_writel(void *opaque, uint32_t addr, uint32_t val);
static uint32_t ide_data_readl(void *opaque, uint32_t addr);
static bool Ide_MmioIsAvailable(void)
{
return ConfigureParams.Ide[0].bUseDevice;
}
/**
* Convert Falcon IDE registers to "normal" IDE register numbers.
* (taken from Aranym - cheers!)
*/
static uint32_t fcha2io(uint32_t address)
{
switch (address)
{
case 0xf00000:
return 0x00;
case 0xf00005:
return 0x01;
case 0xf00009:
return 0x02;
case 0xf0000d:
return 0x03;
case 0xf00011:
return 0x04;
case 0xf00015:
return 0x05;
case 0xf00019:
return 0x06;
case 0xf0001d:
return 0x07;
case 0xf00039:
return 0x16;
default:
return 0xffffffff;
}
}
/**
* Handle byte read access from IDE IO memory.
*/
uae_u32 REGPARAM3 Ide_Mem_bget(uaecptr addr)
{
int ideport;
uint8_t retval;
uaecptr addr_in = addr;
addr &= 0x00ffffff; /* Use a 24 bit address */
if (addr >= 0xf00040 || !Ide_MmioIsAvailable())
{
/* invalid memory addressing --> bus error */
M68000_BusError(addr_in, BUS_ERROR_READ, BUS_ERROR_SIZE_BYTE, BUS_ERROR_ACCESS_DATA);
return -1;
}
ideport = fcha2io(addr);
if (ideport >= 1 && ideport <= 7)
{
retval = ide_ioport_read(opaque_ide_if, ideport);
}
else if (ideport == 8 || ideport == 22)
{
retval = ide_status_read(opaque_ide_if, 0);
}
else
{
retval = 0xFF;
}
LOG_TRACE(TRACE_IDE, "IDE: bget($%x) = $%02x\n", addr, retval);
return retval;
}
/**
* Handle word read access from IDE IO memory.
*/
uae_u32 REGPARAM3 Ide_Mem_wget(uaecptr addr)
{
uint16_t retval;
uaecptr addr_in = addr;
addr &= 0x00ffffff; /* Use a 24 bit address */
if (addr >= 0xf00040 || !Ide_MmioIsAvailable())
{
/* invalid memory addressing --> bus error */
M68000_BusError(addr_in, BUS_ERROR_READ, BUS_ERROR_SIZE_WORD, BUS_ERROR_ACCESS_DATA);
return -1;
}
if (addr == 0xf00000 || addr == 0xf00002)
{
retval = ide_data_readw(opaque_ide_if, 0);
}
else
{
retval = 0xFFFF;
}
LOG_TRACE(TRACE_IDE, "IDE: wget($%x) = $%04x\n", addr, retval);
return retval;
}
/**
* Handle long-word read access from IDE IO memory.
*/
uae_u32 REGPARAM3 Ide_Mem_lget(uaecptr addr)
{
uint32_t retval;
uaecptr addr_in = addr;
addr &= 0x00ffffff; /* Use a 24 bit address */
if (addr >= 0xf00040 || !Ide_MmioIsAvailable())
{
/* invalid memory addressing --> bus error */
M68000_BusError(addr_in, BUS_ERROR_READ, BUS_ERROR_SIZE_LONG, BUS_ERROR_ACCESS_DATA);
return -1;
}
if (addr == 0xf00000)
{
retval = ide_data_readl(opaque_ide_if, 0);
}
else
{
retval = 0xFFFFFFFF;
}
/* word swap for long access to data register */
retval = ((retval >> 16) & 0x0000ffff) | ((retval & 0x0000ffff) << 16);
LOG_TRACE(TRACE_IDE, "IDE: lget($%x) = $%08x\n", addr, retval);
return retval;
}
/**
* Handle byte write access to IDE IO memory.
*/
void REGPARAM3 Ide_Mem_bput(uaecptr addr, uae_u32 val)
{
int ideport;
uaecptr addr_in = addr;
addr &= 0x00ffffff; /* Use a 24 bit address */
val &= 0x0ff;
LOG_TRACE(TRACE_IDE, "IDE: bput($%x, $%x)\n", addr, val);
if (addr >= 0xf00040 || !Ide_MmioIsAvailable())
{
/* invalid memory addressing --> bus error */
M68000_BusError(addr_in, BUS_ERROR_WRITE, BUS_ERROR_SIZE_BYTE, BUS_ERROR_ACCESS_DATA);
return;
}
ideport = fcha2io(addr);
if (ideport >= 1 && ideport <= 7)
{
ide_ioport_write(opaque_ide_if, ideport, val);
}
else if (ideport == 8 || ideport == 22)
{
ide_cmd_write(opaque_ide_if, 0, val);
}
}
/**
* Handle word write access to IDE IO memory.
*/
void REGPARAM3 Ide_Mem_wput(uaecptr addr, uae_u32 val)
{
uaecptr addr_in = addr;
addr &= 0x00ffffff; /* Use a 24 bit address */
val &= 0x0ffff;
LOG_TRACE(TRACE_IDE, "IDE: wput($%x, $%x)\n", addr, val);
if (addr >= 0xf00040 || !Ide_MmioIsAvailable())
{
/* invalid memory addressing --> bus error */
M68000_BusError(addr_in, BUS_ERROR_WRITE, BUS_ERROR_SIZE_WORD, BUS_ERROR_ACCESS_DATA);
return;
}
if (addr == 0xf00000 || addr == 0xf00002)
{
ide_data_writew(opaque_ide_if, 0, val);
}
}
/**
* Handle long-word write access to IDE IO memory.
*/
void REGPARAM3 Ide_Mem_lput(uaecptr addr, uae_u32 val)
{
uaecptr addr_in = addr;
addr &= 0x00ffffff; /* Use a 24 bit address */
LOG_TRACE(TRACE_IDE, "IDE: lput($%x, $%x)\n", addr, val);
if (addr >= 0xf00040 || !Ide_MmioIsAvailable())
{
/* invalid memory addressing --> bus error */
M68000_BusError(addr_in, BUS_ERROR_WRITE, BUS_ERROR_SIZE_LONG, BUS_ERROR_ACCESS_DATA);
return;
}
/* word swap for long access to data register */
val = ((val >> 16) & 0x0000ffff) | ((val & 0x0000ffff) << 16);
if (addr == 0xf00000)
{
ide_data_writel(opaque_ide_if, 0, val);
}
}
/*----------------------------------------------------------------------------*/
/*
* QEMU IDE disk and CD-ROM Emulator
*
* Copyright (c) 2003 Fabrice Bellard
* Copyright (c) 2006 Openedhand Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#define FW_VERSION "1.0"
#define BDRV_TYPE_HD 0
#define BDRV_TYPE_CDROM 1
#define BDRV_TYPE_FLOPPY 2
#define BIOS_ATA_TRANSLATION_AUTO 0
#define BIOS_ATA_TRANSLATION_NONE 1
#define BIOS_ATA_TRANSLATION_LBA 2
#define BIOS_ATA_TRANSLATION_LARGE 3
#define BIOS_ATA_TRANSLATION_RECHS 4
#ifndef ENOMEDIUM // It's not defined on macOS for example
#define ENOMEDIUM ENODEV
#endif
typedef struct BlockDriverState BlockDriverState;
struct BlockDriverState {
int64_t total_sectors; /* if we are reading a disk image, give its
size in sectors */
int read_only; /* if true, the media is read only */
int removable; /* if true, the media can be removed */
int locked; /* if true, the media cannot temporarily be ejected */
int sg; /* if true, the device is a /dev/sg* */
/* event callback when inserting/removing */
void (*change_cb)(void *opaque);
void *change_opaque;
FILE *fhndl;
void *opaque;
off_t file_size;
int media_changed;
int byteswap;
int sector_size;
/* I/O stats (display with "info blockstats"). */
uint64_t rd_bytes;
uint64_t wr_bytes;
uint64_t rd_ops;
uint64_t wr_ops;
/* NOTE: the following infos are only hints for real hardware
drivers. They are not used by the block driver */
int cyls, heads, secs, translation;
int type;
};
static inline void cpu_to_be16wu(uint16_t *p, uint16_t v)
{
uint8_t *p1 = (uint8_t *)p;
p1[0] = v >> 8;
p1[1] = v;
}
#define le32_to_cpu SDL_SwapLE32
#define le16_to_cpu SDL_SwapLE16
#define cpu_to_le32 SDL_SwapLE32
#define cpu_to_le16 SDL_SwapLE16
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
/**
* return 0 as number of sectors if no device present or error
*/
static void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr)
{
off_t length = bs->file_size;
if (length < 0)
length = 0;
else
length = length / bs->sector_size;
*nb_sectors_ptr = length;
}
static void bdrv_get_geometry_hint(BlockDriverState *bs,
int *pcyls, int *pheads, int *psecs)
{
*pcyls = bs->cyls;
*pheads = bs->heads;
*psecs = bs->secs;
}
static void bdrv_set_translation_hint(BlockDriverState *bs, int translation)
{
bs->translation = translation;
}
static void bdrv_set_geometry_hint(BlockDriverState *bs,
int cyls, int heads, int secs)
{
bs->cyls = cyls;
bs->heads = heads;
bs->secs = secs;
}
static int bdrv_get_type_hint(BlockDriverState *bs)
{
return bs->type;
}
static int bdrv_get_translation_hint(BlockDriverState *bs)
{
return bs->translation;
}
/* XXX: no longer used */
static void bdrv_set_change_cb(BlockDriverState *bs,
void (*change_cb)(void *opaque), void *opaque)
{
bs->change_cb = change_cb;
bs->change_opaque = opaque;
}
/**
* Return TRUE if the media is present
*/
static int bdrv_is_inserted(BlockDriverState *bs)
{
return (bs->fhndl != NULL);
}
static int bdrv_is_locked(BlockDriverState *bs)
{
return bs->locked;
}
/**
* Lock or unlock the media (if it is locked, the user won't be able
* to eject it manually).
*/
static void bdrv_set_locked(BlockDriverState *bs, int locked)
{
bs->locked = locked;
}
/* return < 0 if error. See bdrv_write() for the return codes */
static int bdrv_read(BlockDriverState *bs, int64_t sector_num,
uint8_t *buf, int nb_sectors)
{
int ret, len;
if (!bs->fhndl)
return -ENOMEDIUM;
len = nb_sectors * bs->sector_size;
if (fseeko(bs->fhndl, sector_num * bs->sector_size, SEEK_SET) != 0)
{
perror("bdrv_read");
return -errno;
}
ret = fread(buf, 1, len, bs->fhndl);
if (ret != len)
{
fprintf(stderr,"IDE: bdrv_read error (%d != %d length) at sector %lu!\n", ret, len, (unsigned long)sector_num);
return -EINVAL;
}
bs->rd_bytes += (unsigned) len;
bs->rd_ops ++;
if (bs->byteswap)
{
uint16_t *buf16 = (uint16_t *)buf;
while (len > 0) {
*buf16 = SDL_Swap16(*buf16);
buf16++;
len -= 2;
}
}
return 0;
}
/* Return < 0 if error. Important errors are:
-EIO generic I/O error (may happen for all errors)
-ENOMEDIUM No media inserted.
-EINVAL Invalid sector number or nb_sectors
-EACCES Trying to write a read-only device
*/
static int bdrv_write(BlockDriverState *bs, int64_t sector_num,
const uint8_t *buf, int nb_sectors)
{
int ret, len, idx;
uint16_t *buf16;
if (!bs->fhndl)
return -ENOMEDIUM;
if (bs->read_only)
return -EACCES;
len = nb_sectors * bs->sector_size;
if (fseeko(bs->fhndl, sector_num * bs->sector_size, SEEK_SET) != 0)
{
perror("bdrv_write");
return -errno;
}
if (!bs->byteswap)
{
ret = fwrite(buf, 1, len, bs->fhndl);
}
else
{
buf16 = malloc(len);
if (!buf16)
return -ENOMEM;
for (idx = 0; idx < len; idx += 2)
{
buf16[idx / 2] = SDL_Swap16(*(const uint16_t *)&buf[idx]);
}
ret = fwrite(buf16, 1, len, bs->fhndl);
free(buf16);
}
if (ret != len)
{
fprintf(stderr,"IDE: bdrv_write error (%d != %d length) at sector %lu!\n",
ret, len, (unsigned long)sector_num);
return -EIO;
}
bs->wr_bytes += (unsigned) len;
bs->wr_ops ++;
return 0;
}
static int bdrv_open(BlockDriverState *bs, const char *filename, unsigned long blockSize, int flags)
{
Log_Printf(LOG_INFO, "Mounting IDE hard drive image %s\n", filename);
bs->read_only = 0;
bs->file_size = HDC_CheckAndGetSize(filename, blockSize);
if (bs->file_size <= 0)
return -1;
if (bs->file_size < 2 * 16 * 63 * bs->sector_size)
{
Log_AlertDlg(LOG_ERROR, "IDE disk image size (%"PRId64" bytes) is "
"too small for an IDE disk image "
"(min. 1032192 byte)", bs->file_size);
return -1;
}
bs->fhndl = fopen(filename, "rb+");
if (!bs->fhndl) {
/* Maybe the file is read-only? */
bs->fhndl = fopen(filename, "rb");
if (!bs->fhndl)
perror("bdrv_open");
bs->read_only = 1;
}
else if (!File_Lock(bs->fhndl))
{
Log_Printf(LOG_ERROR, "Cannot lock HD file for writing!\n");
fclose(bs->fhndl);
bs->fhndl = NULL;
}
/* call the change callback */
bs->media_changed = 1;
if (bs->change_cb)
bs->change_cb(bs->change_opaque);
return 0;
}
static void bdrv_flush(BlockDriverState *bs)
{
fflush(bs->fhndl);
}
static void bdrv_close(BlockDriverState *bs)
{
File_UnLock(bs->fhndl);
fclose(bs->fhndl);
bs->fhndl = NULL;
}
/**
* If eject_flag is TRUE, eject the media. Otherwise, close the tray
*/
static void bdrv_eject(BlockDriverState *bs, int eject_flag)
{
if (eject_flag)
bdrv_close(bs);
}
// #define USE_DMA_CDROM
/* Bits of HD_STATUS */
#define ERR_STAT 0x01
#define INDEX_STAT 0x02
#define ECC_STAT 0x04 /* Corrected error */
#define DRQ_STAT 0x08
#define SEEK_STAT 0x10
#define SRV_STAT 0x10
#define WRERR_STAT 0x20
#define READY_STAT 0x40
#define BUSY_STAT 0x80
/* Bits for HD_ERROR */
#define MARK_ERR 0x01 /* Bad address mark */
#define TRK0_ERR 0x02 /* couldn't find track 0 */
#define ABRT_ERR 0x04 /* Command aborted */
#define MCR_ERR 0x08 /* media change request */
#define ID_ERR 0x10 /* ID field not found */
#define MC_ERR 0x20 /* media changed */
#define ECC_ERR 0x40 /* Uncorrectable ECC error */
#define BBD_ERR 0x80 /* pre-EIDE meaning: block marked bad */
#define ICRC_ERR 0x80 /* new meaning: CRC error during transfer */
/* Bits of HD_NSECTOR */
#define CD 0x01
#define IO 0x02
#define REL 0x04
#define TAG_MASK 0xf8
#define IDE_CMD_RESET 0x04
#define IDE_CMD_DISABLE_IRQ 0x02
/* ATA/ATAPI Commands pre T13 Spec */
#define WIN_NOP 0x00
/*
* 0x01->0x02 Reserved
*/
#define CFA_REQ_EXT_ERROR_CODE 0x03 /* CFA Request Extended Error Code */
/*
* 0x04->0x07 Reserved
*/
#define WIN_SRST 0x08 /* ATAPI soft reset command */
#define WIN_DEVICE_RESET 0x08
/*
* 0x09->0x0F Reserved
*/
#define WIN_RECAL 0x10
#define WIN_RESTORE WIN_RECAL
/*
* 0x10->0x1F Reserved
*/
#define WIN_READ 0x20 /* 28-Bit */
#define WIN_READ_ONCE 0x21 /* 28-Bit without retries */
#define WIN_READ_LONG 0x22 /* 28-Bit */
#define WIN_READ_LONG_ONCE 0x23 /* 28-Bit without retries */
#define WIN_READ_EXT 0x24 /* 48-Bit */
#define WIN_READDMA_EXT 0x25 /* 48-Bit */
#define WIN_READDMA_QUEUED_EXT 0x26 /* 48-Bit */
#define WIN_READ_NATIVE_MAX_EXT 0x27 /* 48-Bit */
/*
* 0x28
*/
#define WIN_MULTREAD_EXT 0x29 /* 48-Bit */
/*
* 0x2A->0x2F Reserved
*/
#define WIN_WRITE 0x30 /* 28-Bit */
#define WIN_WRITE_ONCE 0x31 /* 28-Bit without retries */
#define WIN_WRITE_LONG 0x32 /* 28-Bit */
#define WIN_WRITE_LONG_ONCE 0x33 /* 28-Bit without retries */
#define WIN_WRITE_EXT 0x34 /* 48-Bit */
#define WIN_WRITEDMA_EXT 0x35 /* 48-Bit */
#define WIN_WRITEDMA_QUEUED_EXT 0x36 /* 48-Bit */
#define WIN_SET_MAX_EXT 0x37 /* 48-Bit */
#define CFA_WRITE_SECT_WO_ERASE 0x38 /* CFA Write Sectors without erase */
#define WIN_MULTWRITE_EXT 0x39 /* 48-Bit */
/*
* 0x3A->0x3B Reserved
*/
#define WIN_WRITE_VERIFY 0x3C /* 28-Bit */
/*
* 0x3D->0x3F Reserved
*/
#define WIN_VERIFY 0x40 /* 28-Bit - Read Verify Sectors */
#define WIN_VERIFY_ONCE 0x41 /* 28-Bit - without retries */
#define WIN_VERIFY_EXT 0x42 /* 48-Bit */
/*
* 0x43->0x4F Reserved
*/
#define WIN_FORMAT 0x50
/*
* 0x51->0x5F Reserved
*/
#define WIN_INIT 0x60
/*
* 0x61->0x5F Reserved
*/
#define WIN_SEEK 0x70 /* 0x70-0x7F Reserved */
#define CFA_TRANSLATE_SECTOR 0x87 /* CFA Translate Sector */
#define WIN_DIAGNOSE 0x90
#define WIN_SPECIFY 0x91 /* set drive geometry translation */
#define WIN_DOWNLOAD_MICROCODE 0x92
#define WIN_STANDBYNOW2 0x94
#define CFA_IDLEIMMEDIATE 0x95 /* force drive to become "ready" */
#define WIN_STANDBY2 0x96
#define WIN_SETIDLE2 0x97
#define WIN_CHECKPOWERMODE2 0x98
#define WIN_SLEEPNOW2 0x99
/*
* 0x9A VENDOR
*/
#define WIN_PACKETCMD 0xA0 /* Send a packet command. */
#define WIN_PIDENTIFY 0xA1 /* identify ATAPI device */
#define WIN_QUEUED_SERVICE 0xA2
#define WIN_SMART 0xB0 /* self-monitoring and reporting */
#define CFA_ACCESS_METADATA_STORAGE 0xB8
#define CFA_ERASE_SECTORS 0xC0 /* microdrives implement as NOP */
#define WIN_MULTREAD 0xC4 /* read sectors using multiple mode*/
#define WIN_MULTWRITE 0xC5 /* write sectors using multiple mode */
#define WIN_SETMULT 0xC6 /* enable/disable multiple mode */
#define WIN_READDMA_QUEUED 0xC7 /* read sectors using Queued DMA transfers */
#define WIN_READDMA 0xC8 /* read sectors using DMA transfers */
#define WIN_READDMA_ONCE 0xC9 /* 28-Bit - without retries */
#define WIN_WRITEDMA 0xCA /* write sectors using DMA transfers */
#define WIN_WRITEDMA_ONCE 0xCB /* 28-Bit - without retries */
#define WIN_WRITEDMA_QUEUED 0xCC /* write sectors using Queued DMA transfers */
#define CFA_WRITE_MULTI_WO_ERASE 0xCD /* CFA Write multiple without erase */
#define WIN_GETMEDIASTATUS 0xDA
#define WIN_ACKMEDIACHANGE 0xDB /* ATA-1, ATA-2 vendor */
#define WIN_POSTBOOT 0xDC
#define WIN_PREBOOT 0xDD
#define WIN_DOORLOCK 0xDE /* lock door on removable drives */
#define WIN_DOORUNLOCK 0xDF /* unlock door on removable drives */
#define WIN_STANDBYNOW1 0xE0
#define WIN_IDLEIMMEDIATE 0xE1 /* force drive to become "ready" */
#define WIN_STANDBY 0xE2 /* Set device in Standby Mode */
#define WIN_SETIDLE1 0xE3
#define WIN_READ_BUFFER 0xE4 /* force read only 1 sector */
#define WIN_CHECKPOWERMODE1 0xE5
#define WIN_SLEEPNOW1 0xE6
#define WIN_FLUSH_CACHE 0xE7
#define WIN_WRITE_BUFFER 0xE8 /* force write only 1 sector */
#define WIN_WRITE_SAME 0xE9 /* read ata-2 to use */
/* SET_FEATURES 0x22 or 0xDD */
#define WIN_FLUSH_CACHE_EXT 0xEA /* 48-Bit */
#define WIN_IDENTIFY 0xEC /* ask drive to identify itself */
#define WIN_MEDIAEJECT 0xED
#define WIN_IDENTIFY_DMA 0xEE /* same as WIN_IDENTIFY, but DMA */
#define WIN_SETFEATURES 0xEF /* set special drive features */
#define EXABYTE_ENABLE_NEST 0xF0
#define IBM_SENSE_CONDITION 0xF0 /* measure disk temperature */
#define WIN_SECURITY_SET_PASS 0xF1
#define WIN_SECURITY_UNLOCK 0xF2
#define WIN_SECURITY_ERASE_PREPARE 0xF3
#define WIN_SECURITY_ERASE_UNIT 0xF4
#define WIN_SECURITY_FREEZE_LOCK 0xF5
#define CFA_WEAR_LEVEL 0xF5 /* microdrives implement as NOP */
#define WIN_SECURITY_DISABLE 0xF6
#define WIN_READ_NATIVE_MAX 0xF8 /* return the native maximum address */
#define WIN_SET_MAX 0xF9
#define DISABLE_SEAGATE 0xFB
/* set to 1 set disable mult support */
#define MAX_MULT_SECTORS 16
/* maximum physical IDE hard disk drive sector size */
#define MAX_SECTOR_SIZE 4096
/* ATAPI defines */
#define ATAPI_PACKET_SIZE 12
/* The generic packet command opcodes for CD/DVD Logical Units,
* From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
#define GPCMD_BLANK 0xa1
#define GPCMD_CLOSE_TRACK 0x5b
#define GPCMD_FLUSH_CACHE 0x35
#define GPCMD_FORMAT_UNIT 0x04
#define GPCMD_GET_CONFIGURATION 0x46
#define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
#define GPCMD_GET_PERFORMANCE 0xac
#define GPCMD_INQUIRY 0x12
#define GPCMD_LOAD_UNLOAD 0xa6
#define GPCMD_MECHANISM_STATUS 0xbd
#define GPCMD_MODE_SELECT_10 0x55
#define GPCMD_MODE_SENSE_10 0x5a
#define GPCMD_PAUSE_RESUME 0x4b
#define GPCMD_PLAY_AUDIO_10 0x45
#define GPCMD_PLAY_AUDIO_MSF 0x47
#define GPCMD_PLAY_AUDIO_TI 0x48
#define GPCMD_PLAY_CD 0xbc
#define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
#define GPCMD_READ_10 0x28
#define GPCMD_READ_12 0xa8
#define GPCMD_READ_CDVD_CAPACITY 0x25
#define GPCMD_READ_CD 0xbe
#define GPCMD_READ_CD_MSF 0xb9
#define GPCMD_READ_DISC_INFO 0x51
#define GPCMD_READ_DVD_STRUCTURE 0xad
#define GPCMD_READ_FORMAT_CAPACITIES 0x23
#define GPCMD_READ_HEADER 0x44
#define GPCMD_READ_TRACK_RZONE_INFO 0x52
#define GPCMD_READ_SUBCHANNEL 0x42
#define GPCMD_READ_TOC_PMA_ATIP 0x43
#define GPCMD_REPAIR_RZONE_TRACK 0x58
#define GPCMD_REPORT_KEY 0xa4
#define GPCMD_REQUEST_SENSE 0x03
#define GPCMD_RESERVE_RZONE_TRACK 0x53
#define GPCMD_SCAN 0xba
#define GPCMD_SEEK 0x2b
#define GPCMD_SEND_DVD_STRUCTURE 0xad
#define GPCMD_SEND_EVENT 0xa2
#define GPCMD_SEND_KEY 0xa3
#define GPCMD_SEND_OPC 0x54
#define GPCMD_SET_READ_AHEAD 0xa7
#define GPCMD_SET_STREAMING 0xb6
#define GPCMD_START_STOP_UNIT 0x1b
#define GPCMD_STOP_PLAY_SCAN 0x4e
#define GPCMD_TEST_UNIT_READY 0x00
#define GPCMD_VERIFY_10 0x2f
#define GPCMD_WRITE_10 0x2a
#define GPCMD_WRITE_AND_VERIFY_10 0x2e
/* This is listed as optional in ATAPI 2.6, but is (curiously)
* missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji
* Table 377 as an MMC command for SCSi devices though... Most ATAPI
* drives support it. */
#define GPCMD_SET_SPEED 0xbb
/* This seems to be a SCSI specific CD-ROM opcode
* to play data at track/index */
#define GPCMD_PLAYAUDIO_TI 0x48
/*
* From MS Media Status Notification Support Specification. For
* older drives only.
*/
#define GPCMD_GET_MEDIA_STATUS 0xda
#define GPCMD_MODE_SENSE_6 0x1a
/* Mode page codes for mode sense/set */
#define GPMODE_R_W_ERROR_PAGE 0x01
#define GPMODE_WRITE_PARMS_PAGE 0x05
#define GPMODE_AUDIO_CTL_PAGE 0x0e
#define GPMODE_POWER_PAGE 0x1a
#define GPMODE_FAULT_FAIL_PAGE 0x1c
#define GPMODE_TO_PROTECT_PAGE 0x1d
#define GPMODE_CAPABILITIES_PAGE 0x2a
#define GPMODE_ALL_PAGES 0x3f
/* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor
* of MODE_SENSE_POWER_PAGE */
#define GPMODE_CDROM_PAGE 0x0d
#define ATAPI_INT_REASON_CD 0x01 /* 0 = data transfer */
#define ATAPI_INT_REASON_IO 0x02 /* 1 = transfer to the host */
#define ATAPI_INT_REASON_REL 0x04
#define ATAPI_INT_REASON_TAG 0xf8
/* same constants as bochs */
#define ASC_ILLEGAL_OPCODE 0x20
#define ASC_LOGICAL_BLOCK_OOR 0x21
#define ASC_INV_FIELD_IN_CMD_PACKET 0x24
#define ASC_MEDIUM_NOT_PRESENT 0x3a
#define ASC_SAVING_PARAMETERS_NOT_SUPPORTED 0x39
#define SENSE_NONE 0
#define SENSE_NOT_READY 2
#define SENSE_ILLEGAL_REQUEST 5
#define SENSE_UNIT_ATTENTION 6
typedef void EndTransferFunc(struct IDEState *);
/* NOTE: IDEState represents in fact one drive */
typedef struct IDEState
{
/* ide config */
int is_cdrom;
int cylinders, heads, sectors;
int64_t nb_sectors;
int mult_sectors;
int identify_set;
uint16_t identify_data[256];
int drive_serial;
/* ide regs */
uint8_t feature;
uint8_t error;
uint32_t nsector;
uint8_t sector;
uint8_t lcyl;
uint8_t hcyl;
/* other part of tf for lba48 support */
uint8_t hob_feature;
uint8_t hob_nsector;
uint8_t hob_sector;
uint8_t hob_lcyl;
uint8_t hob_hcyl;
uint8_t select;
uint8_t status;
/* 0x3f6 command, only meaningful for drive 0 */
uint8_t cmd;
/* set for lba48 access */
uint8_t lba48;
/* depends on bit 4 in select, only meaningful for drive 0 */
struct IDEState *cur_drive;
BlockDriverState *bs;
/* ATAPI specific */
uint8_t sense_key;
uint8_t asc;
int packet_transfer_size;
int elementary_transfer_size;
int io_buffer_index;
int lba;
int cd_sector_size;
/* ATA DMA state */
int io_buffer_size;
/* PIO transfer handling */
int req_nb_sectors; /* number of sectors per interrupt */
EndTransferFunc *end_transfer_func;
uint8_t *data_ptr;
uint8_t *data_end;
uint8_t *io_buffer;
int media_changed;
} IDEState;
static void padstr(char *str, const char *src, int len)
{
int i, v;
for (i = 0; i < len; i++)
{
if (*src)
v = *src++;
else
v = ' ';
str[i^1] = v;
}
}
static void padstr8(uint8_t *buf, int buf_size, const char *src)
{
int i;
for (i = 0; i < buf_size; i++)
{
if (*src)
buf[i] = *src++;
else
buf[i] = ' ';
}
}
static void put_le16(uint16_t *p, unsigned int v)
{
*p = SDL_SwapLE16(v);
}
static void ide_identify(IDEState *s)
{
uint16_t *p;
unsigned int oldsize;
char buf[40];
if (s->identify_set)
{
memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data));
return;
}
memset(s->io_buffer, 0, 512);
p = (uint16_t *)s->io_buffer;
put_le16(p + 0, 0x0040);
put_le16(p + 1, s->cylinders);
put_le16(p + 3, s->heads);
put_le16(p + 4, 512 * s->sectors); /* XXX: retired, remove ? */
put_le16(p + 5, 512); /* XXX: retired, remove ? */
put_le16(p + 6, s->sectors);
snprintf(buf, sizeof(buf), "QM%05d", s->drive_serial);
padstr((char *)(p + 10), buf, 20); /* serial number */
put_le16(p + 20, 3); /* XXX: retired, remove ? */
put_le16(p + 21, 512); /* cache size in sectors */
put_le16(p + 22, 4); /* ecc bytes */
padstr((char *)(p + 23), FW_VERSION, 8); /* firmware version */
/* Use the same convention for the name as SCSI disks are using: The
* first 8 characters should be the vendor, i.e. use 2 spaces here */
snprintf(buf, sizeof(buf), "Hatari IDE disk %liM", (long)(s->nb_sectors / 2048));
padstr((char *)(p + 27), buf, 40);
#if MAX_MULT_SECTORS > 1
put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
#endif
put_le16(p + 48, 1); /* dword I/O */
put_le16(p + 49, (1 << 11) | (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 << 1) | (1 << 2)); /* words 54-58,64-70,88 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 + 63, 0x07); /* mdma0-2 supported */
put_le16(p + 65, 120);
put_le16(p + 66, 120);
put_le16(p + 67, 120);
put_le16(p + 68, 120);
put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */
put_le16(p + 81, 0x16); /* conforms to ata5 */
put_le16(p + 82, (1 << 14));
/* 13=flush_cache_ext,12=flush_cache,10=lba48 */
put_le16(p + 83, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
put_le16(p + 84, (1 << 14));
put_le16(p + 85, (1 << 14));
/* 13=flush_cache_ext,12=flush_cache,10=lba48 */
put_le16(p + 86, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
put_le16(p + 87, (1 << 14));
put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
put_le16(p + 93, 1 | (1 << 14) | 0x2000);
/* LBA-48 sector count */
put_le16(p + 100, s->nb_sectors);
put_le16(p + 101, s->nb_sectors >> 16);
put_le16(p + 102, s->nb_sectors >> 32);
put_le16(p + 103, s->nb_sectors >> 48);
/* ratio logical/physical: 0, logicalSectorSizeSupported */
put_le16(p + 106, 1 << 12);
/* words per logical sector */
put_le16(p + 117, s->bs->sector_size >> 1);
put_le16(p + 118, s->bs->sector_size >> 17);
memcpy(s->identify_data, p, sizeof(s->identify_data));
s->identify_set = 1;
}
static void ide_atapi_identify(IDEState *s)
{
uint16_t *p;
char buf[20];
if (s->identify_set)
{
memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data));
return;
}
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((char *)(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((char *)(p + 23), FW_VERSION, 8); /* firmware version */
padstr((char *)(p + 27), "Hatari CD-ROM", 40); /* model */
put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
#ifdef USE_DMA_CDROM
put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */
put_le16(p + 53, 7); /* words 64-70, 54-58, 88 valid */
put_le16(p + 63, 7); /* mdma0-2 supported */
put_le16(p + 64, 0x3f); /* PIO modes supported */
#else
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 */
#endif
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 */
#ifdef USE_DMA_CDROM
put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
#endif
memcpy(s->identify_data, p, sizeof(s->identify_data));
s->identify_set = 1;
}
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)
{
if (!(s->cmd & IDE_CMD_DISABLE_IRQ))
{
/* Set IRQ (set line to low) */
MFP_GPIP_Set_Line_Input ( MFP_GPIP_LINE_FDC_HDC , MFP_GPIP_STATE_LOW );
}
}
/* 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;
if (!(s->status & ERR_STAT))
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 */
if (!s->lba48)
{
sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) |
(s->lcyl << 8) | s->sector;
}
else
{
sector_num = ((int64_t)s->hob_hcyl << 40) |
((int64_t) s->hob_lcyl << 32) |
((int64_t) s->hob_sector << 24) |
((int64_t) s->hcyl << 16) |
((int64_t) 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)
{
if (!s->lba48)
{
s->select = (s->select & 0xf0) | (sector_num >> 24);
s->hcyl = (sector_num >> 16);
s->lcyl = (sector_num >> 8);
s->sector = (sector_num);
}
else
{
s->sector = sector_num;
s->lcyl = sector_num >> 8;
s->hcyl = sector_num >> 16;
s->hob_sector = sector_num >> 24;
s->hob_lcyl = sector_num >> 32;
s->hob_hcyl = sector_num >> 40;
}
}
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
{
LOG_TRACE(TRACE_IDE, "IDE: read sector=%"PRId64"\n", sector_num);
if (n > s->req_nb_sectors)
n = s->req_nb_sectors;
ret = bdrv_read(s->bs, sector_num, s->io_buffer, n);
if (ret != 0)
{
ide_abort_command(s);
ide_set_irq(s);
return;
}
ide_transfer_start(s, s->io_buffer, s->bs->sector_size * n, ide_sector_read);
ide_set_irq(s);
ide_set_sector(s, sector_num + n);
s->nsector -= n;
}
}
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);
LOG_TRACE(TRACE_IDE, "IDE: write sector=%"PRId64"\n", sector_num);
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);
if (ret != 0)
{
ide_abort_command(s);
ide_set_irq(s);
return;
}
s->nsector -= n;
if (s->nsector == 0)
{
/* no more sectors 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, s->bs->sector_size * n1, ide_sector_write);
}
ide_set_sector(s, sector_num + n);
ide_set_irq(s);
}
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)
{
LOG_TRACE(TRACE_IDE, "IDE: ATAPI cmd error sense=0x%x asc=0x%x\n", sense_key, asc);
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_data_to_raw(uint8_t *buf, int lba)
{
/* 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 */
buf += 2048;
/* XXX: ECC not computed */
memset(buf, 0, 288);
}
static int cd_read_sector(BlockDriverState *bs, int lba, uint8_t *buf,
int sector_size)
{
int ret;
switch (sector_size)
{
case 2048:
ret = bdrv_read(bs, (int64_t)lba << 2, buf, 4);
break;
case 2352:
ret = bdrv_read(bs, (int64_t)lba << 2, buf + 16, 4);
if (ret < 0)
return ret;
cd_data_to_raw(buf, lba);
break;
default:
ret = -EIO;
break;
}
return ret;
}
static void ide_atapi_io_error(IDEState *s, int ret)
{
/* XXX: handle more errors */
if (ret == -ENOMEDIUM)
{
ide_atapi_cmd_error(s, SENSE_NOT_READY,
ASC_MEDIUM_NOT_PRESENT);
}
else
{
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
ASC_LOGICAL_BLOCK_OOR);
}
}
/* The whole ATAPI transfer logic is handled in this function */
static void ide_atapi_cmd_reply_end(IDEState *s)
{
int byte_count_limit, size, ret;
LOG_TRACE(TRACE_IDE, "IDE: ATAPI reply tx_size=%d elem_tx_size=%d index=%d\n",
s->packet_transfer_size,
s->elementary_transfer_size,
s->io_buffer_index);
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);
LOG_TRACE(TRACE_IDE, "IDE: ATAPI status=0x%x\n", s->status);
}
else
{
/* see if a new sector must be read */
if (s->lba != -1 && s->io_buffer_index >= s->cd_sector_size)
{
ret = cd_read_sector(s->bs, s->lba, s->io_buffer, s->cd_sector_size);
if (ret < 0)
{
ide_transfer_stop(s);
ide_atapi_io_error(s, ret);
return;
}
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);
LOG_TRACE(TRACE_IDE, "IDE: ATAPI byte_count_limit=%d\n", byte_count_limit);
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);
LOG_TRACE(TRACE_IDE, "IDE: ATAPI status=0x%x\n", s->status);
}
}
}
/* 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->io_buffer_size = size; /* dma: send the reply data as one chunk */
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(IDEState *s, int lba, int nb_sectors,
int sector_size)
{
LOG_TRACE(TRACE_IDE, "IDE: ATAPI read pio LBA=%d nb_sectors=%d\n", lba, nb_sectors);
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);
}
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;
if (LOG_TRACE_LEVEL(TRACE_IDE))
{
int i;
LOG_TRACE_PRINT("IDE: ATAPI limit=0x%x packet", s->lcyl | (s->hcyl << 8));
for (i = 0; i < ATAPI_PACKET_SIZE; i++)
{
printf(" %02x", packet[i]);
}
printf("\n");
}
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_6:
case GPCMD_MODE_SENSE_10:
{
int action, code;
if (packet[0] == GPCMD_MODE_SENSE_10)
max_len = ube16_to_cpu(packet + 7);
else
max_len = packet[4];
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 (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;
}
ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
}
break;
case GPCMD_READ_CD:
{
int nb_sectors, lba, transfer_request;
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;
}
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:
{
unsigned int lba;
uint64_t total_sectors;
bdrv_get_geometry(s->bs, &total_sectors);
total_sectors >>= 2;
if (total_sectors == 0)
{
ide_atapi_cmd_error(s, SENSE_NOT_READY,
ASC_MEDIUM_NOT_PRESENT);
break;
}
lba = ube32_to_cpu(packet + 2);
if (lba >= total_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_eject(s->bs, 1);
}
else if (eject && start)
{
/* close the tray */
bdrv_eject(s->bs, 0);
}
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, len;
// int msf, start_track;
uint64_t total_sectors;
bdrv_get_geometry(s->bs, &total_sectors);
total_sectors >>= 2;
if (total_sectors == 0)
{
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:
fprintf(stderr,"IDE FIXME: cdrom_read_toc");
len=-1;
//len = cdrom_read_toc(total_sectors, 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:
fprintf(stderr,"IDE FIXME: cdrom_read_toc_raw");
len=-1;
//len = cdrom_read_toc_raw(total_sectors, 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:
{
uint64_t total_sectors;
bdrv_get_geometry(s->bs, &total_sectors);
total_sectors >>= 2;
if (total_sectors == 0)
{
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, total_sectors - 1);
cpu_to_ube32(buf + 4, 2048);
ide_atapi_cmd_reply(s, 8, 8);
}
break;
case GPCMD_READ_DVD_STRUCTURE:
{
int media = packet[1];
int layer = packet[6];
int format = packet[2];
uint64_t total_sectors;
if (media != 0 || layer != 0)
{
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
ASC_INV_FIELD_IN_CMD_PACKET);
}
switch (format)
{
case 0:
bdrv_get_geometry(s->bs, &total_sectors);
total_sectors >>= 2;
if (total_sectors == 0)
{
ide_atapi_cmd_error(s, SENSE_NOT_READY,
ASC_MEDIUM_NOT_PRESENT);
break;
}
memset(buf, 0, 2052);
buf[4] = 1; // DVD-ROM, part version 1
buf[5] = 0xf; // 120mm disc, maximum rate unspecified
buf[6] = 0; // one layer, embossed data
buf[7] = 0;
cpu_to_ube32(buf + 8, 0);
cpu_to_ube32(buf + 12, total_sectors - 1);
cpu_to_ube32(buf + 16, total_sectors - 1);
cpu_to_be16wu((uint16_t *)buf, 2048 + 4);
ide_atapi_cmd_reply(s, 2048 + 3, 2048 + 4);
break;
default:
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
ASC_INV_FIELD_IN_CMD_PACKET);
break;
}
}
break;
case GPCMD_SET_SPEED:
ide_atapi_cmd_ok(s);
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; /* additional length */
buf[5] = 0; /* reserved */
buf[6] = 0; /* reserved */
buf[7] = 0; /* reserved */
padstr8(buf + 8, 8, "Hatari");
padstr8(buf + 16, 16, "CD/DVD-ROM");
padstr8(buf + 32, 4, FW_VERSION);
ide_atapi_cmd_reply(s, 36, max_len);
break;
case GPCMD_GET_CONFIGURATION:
{
uint64_t total_sectors;
/* only feature 0 is supported */
if (packet[2] != 0 || packet[3] != 0)
{
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
ASC_INV_FIELD_IN_CMD_PACKET);
break;
}
memset(buf, 0, 32);
bdrv_get_geometry(s->bs, &total_sectors);
buf[3] = 16;
buf[7] = total_sectors <= 1433600 ? 0x08 : 0x10; /* current profile */
buf[10] = 0x10 | 0x1;
buf[11] = 0x08; /* size of profile list */
buf[13] = 0x10; /* DVD-ROM profile */
buf[14] = buf[7] == 0x10; /* (in)active */
buf[17] = 0x08; /* CD-ROM profile */
buf[18] = buf[7] == 0x08; /* (in)active */
ide_atapi_cmd_reply(s, 32, 32);
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;
uint64_t nb_sectors;
/* XXX: send interrupt too */
bdrv_get_geometry(s->bs, &nb_sectors);
s->nb_sectors = nb_sectors;
}
static void ide_cmd_lba48_transform(IDEState *s, int lba48)
{
s->lba48 = lba48;
/* handle the 'magic' 0 nsector count conversion here. to avoid
* fiddling with the rest of the read logic, we just store the
* full sector count in ->nsector and ignore ->hob_nsector from now
*/
if (!s->lba48)
{
if (!s->nsector)
s->nsector = 256;
}
else
{
if (!s->nsector && !s->hob_nsector)
s->nsector = 65536;
else
{
int lo = s->nsector;
int hi = s->hob_nsector;
s->nsector = (hi << 8) | lo;
}
}
}
static void ide_clear_hob(IDEState *ide_if)
{
/* any write clears HOB high bit of device control register */
ide_if[0].select &= ~(1 << 7);
ide_if[1].select &= ~(1 << 7);
}
static void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
{
IDEState *ide_if = opaque;
IDEState *s;
int unit, n;
int lba48 = 0;
LOG_TRACE(TRACE_IDE, "IDE: write addr=0x%x val=0x%02x\n", addr, val);
addr &= 7;
switch (addr)
{
case 0:
break;
case 1:
ide_clear_hob(ide_if);
/* NOTE: data is written to the two drives */
ide_if[0].hob_feature = ide_if[0].feature;
ide_if[1].hob_feature = ide_if[1].feature;
ide_if[0].feature = val;
ide_if[1].feature = val;
break;
case 2:
ide_clear_hob(ide_if);
ide_if[0].hob_nsector = ide_if[0].nsector;
ide_if[1].hob_nsector = ide_if[1].nsector;
ide_if[0].nsector = val;
ide_if[1].nsector = val;
break;
case 3:
ide_clear_hob(ide_if);
ide_if[0].hob_sector = ide_if[0].sector;
ide_if[1].hob_sector = ide_if[1].sector;
ide_if[0].sector = val;
ide_if[1].sector = val;
break;
case 4:
ide_clear_hob(ide_if);
ide_if[0].hob_lcyl = ide_if[0].lcyl;
ide_if[1].hob_lcyl = ide_if[1].lcyl;
ide_if[0].lcyl = val;
ide_if[1].lcyl = val;
break;
case 5:
ide_clear_hob(ide_if);
ide_if[0].hob_hcyl = ide_if[0].hcyl;
ide_if[1].hob_hcyl = ide_if[1].hcyl;
ide_if[0].hcyl = val;
ide_if[1].hcyl = val;
break;
case 6:
/* FIXME: HOB readback uses bit 7 */
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;
break;
default:
case 7:
/* command */
LOG_TRACE(TRACE_IDE, "IDE: CMD=%02x\n", val);
s = ide_if->cur_drive;
/* ignore commands to non existent IDE device 1 */
if (s != ide_if && !s->bs)
{
fprintf(stderr,"IDE: CMD to non-existant IDE device #1!\n");
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 & 0xff) != 0 &&
((s->nsector & 0xff) > MAX_MULT_SECTORS ||
(s->nsector & (s->nsector - 1)) != 0))
{
ide_abort_command(s);
}
else
{
s->mult_sectors = s->nsector & 0xff;
s->status = READY_STAT;
}
ide_set_irq(s);
break;
case WIN_VERIFY_EXT:
lba48 = 1;
/* fall through */
case WIN_VERIFY:
case WIN_VERIFY_ONCE:
/* do sector number check ? */
ide_cmd_lba48_transform(s, lba48);
s->status = READY_STAT;
ide_set_irq(s);
break;
case WIN_FORMAT:
ide_cmd_lba48_transform(s, lba48);
s->error = 0;
s->status = READY_STAT | SEEK_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, s->bs->sector_size * n, ide_sector_write);
s->media_changed = 1;
break;
case WIN_READ_EXT:
lba48 = 1;
/* fall through */
case WIN_READ:
case WIN_READ_ONCE:
if (!s->bs)
goto abort_cmd;
ide_cmd_lba48_transform(s, lba48);
s->req_nb_sectors = 1;
ide_sector_read(s);
break;
case WIN_WRITE_EXT:
lba48 = 1;
/* fall through */
case WIN_WRITE:
case WIN_WRITE_ONCE:
case CFA_WRITE_SECT_WO_ERASE:
case WIN_WRITE_VERIFY:
ide_cmd_lba48_transform(s, lba48);
s->error = 0;
s->status = SEEK_STAT | READY_STAT;
s->req_nb_sectors = 1;
ide_transfer_start(s, s->io_buffer, s->bs->sector_size, ide_sector_write);
s->media_changed = 1;
break;
case WIN_MULTREAD_EXT:
lba48 = 1;
/* fall through */
case WIN_MULTREAD:
if (!s->mult_sectors)
goto abort_cmd;
ide_cmd_lba48_transform(s, lba48);
s->req_nb_sectors = s->mult_sectors;
ide_sector_read(s);
break;
case WIN_MULTWRITE_EXT:
lba48 = 1;
/* fall through */
case WIN_MULTWRITE:
case CFA_WRITE_MULTI_WO_ERASE:
if (!s->mult_sectors)
goto abort_cmd;
ide_cmd_lba48_transform(s, lba48);
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, s->bs->sector_size * n, ide_sector_write);
s->media_changed = 1;
break;
case WIN_READDMA_EXT:
lba48 = 1;
/* fall through */
case WIN_READDMA:
case WIN_READDMA_ONCE:
if (!s->bs)
goto abort_cmd;
ide_cmd_lba48_transform(s, lba48);
// ide_sector_read_dma(s);
fprintf(stderr, "IDE: DMA read not supported!\n");
break;
case WIN_WRITEDMA_EXT:
lba48 = 1;
/* fall through */
case WIN_WRITEDMA:
case WIN_WRITEDMA_ONCE:
if (!s->bs)
goto abort_cmd;
ide_cmd_lba48_transform(s, lba48);
// ide_sector_write_dma(s);
fprintf(stderr, "IDE: DMA write not supported!\n");
s->media_changed = 1;
break;
case WIN_READ_NATIVE_MAX_EXT:
lba48 = 1;
/* fall through */
case WIN_READ_NATIVE_MAX:
ide_cmd_lba48_transform(s, lba48);
ide_set_sector(s, s->nb_sectors - 1);
s->status = READY_STAT;
ide_set_irq(s);
break;
case WIN_CHECKPOWERMODE1:
case WIN_CHECKPOWERMODE2:
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 0xcc: /* reverting to power-on defaults enable */
case 0x66: /* reverting to power-on defaults disable */
case 0x02: /* write cache enable */
case 0x82: /* write cache disable */
case 0xaa: /* read look-ahead enable */
case 0x55: /* read look-ahead disable */
case 0x05: /* set advanced power management mode */
case 0x85: /* disable advanced power management mode */
case 0x69: /* NOP */
case 0x67: /* NOP */
case 0x96: /* NOP */
case 0x9a: /* NOP */
case 0x42: /* enable Automatic Acoustic Mode */
case 0xc2: /* disable Automatic Acoustic Mode */
s->status = READY_STAT | SEEK_STAT;
ide_set_irq(s);
break;
case 0x03: /* set transfer mode */
{
uint8_t mval = s->nsector & 0x07;
switch (s->nsector >> 3)
{
case 0x00: /* pio default */
case 0x01: /* pio mode */
put_le16(s->identify_data + 63,0x07);
put_le16(s->identify_data + 88,0x3f);
break;
case 0x04: /* mdma mode */
put_le16(s->identify_data + 63,0x07 | (1 << (mval + 8)));
put_le16(s->identify_data + 88,0x3f);
break;
case 0x08: /* udma mode */
put_le16(s->identify_data + 63,0x07);
put_le16(s->identify_data + 88,0x3f | (1 << (mval + 8)));
break;
default:
goto abort_cmd;
}
s->status = READY_STAT | SEEK_STAT;
ide_set_irq(s);
break;
}
default:
goto abort_cmd;
}
break;
case WIN_FLUSH_CACHE:
case WIN_FLUSH_CACHE_EXT:
if (s->bs)
bdrv_flush(s->bs);
s->status = READY_STAT;
ide_set_irq(s);
break;
case WIN_STANDBY:
case WIN_STANDBY2:
case WIN_STANDBYNOW1:
case WIN_STANDBYNOW2:
case WIN_IDLEIMMEDIATE:
case CFA_IDLEIMMEDIATE:
case WIN_SETIDLE1:
case WIN_SETIDLE2:
case WIN_SLEEPNOW1:
case WIN_SLEEPNOW2:
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 | SEEK_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;
ide_set_irq(s);
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->status = READY_STAT;
// 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;
/* FIXME: HOB readback uses bit 7, but it's always set right now */
//int hob = s->select & (1 << 7);
const int hob = 0;
addr = addr1 & 7;
switch (addr)
{
case 0:
ret = 0xff;
break;
case 1:
if (!ide_if[0].bs && !ide_if[1].bs)
ret = 0;
else if (!hob)
ret = s->error;
else
ret = s->hob_feature;
break;
case 2:
if (!ide_if[0].bs && !ide_if[1].bs)
ret = 0;
else if (!hob)
ret = s->nsector & 0xff;
else
ret = s->hob_nsector;
break;
case 3:
if (!ide_if[0].bs && !ide_if[1].bs)
ret = 0;
else if (!hob)
ret = s->sector;
else
ret = s->hob_sector;
break;
case 4:
if (!ide_if[0].bs && !ide_if[1].bs)
ret = 0;
else if (!hob)
ret = s->lcyl;
else
ret = s->hob_lcyl;
break;
case 5:
if (!ide_if[0].bs && !ide_if[1].bs)
ret = 0;
else if (!hob)
ret = s->hcyl;
else
ret = s->hob_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;
/* Clear IRQ (set line to high) */
MFP_GPIP_Set_Line_Input ( MFP_GPIP_LINE_FDC_HDC , MFP_GPIP_STATE_HIGH );
break;
}
LOG_TRACE(TRACE_IDE, "IDE: read addr=0x%x val=%02x\n", addr1, ret);
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;
LOG_TRACE(TRACE_IDE, "IDE: read status addr=0x%x val=%02x\n", addr, ret);
return ret;
}
static void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val)
{
IDEState *ide_if = opaque;
IDEState *s;
int i;
LOG_TRACE(TRACE_IDE, "IDE: write control addr=0x%x val=%02x\n", addr, val);
/* 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 | SEEK_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);
s->media_changed = 0;
}
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 */
};
/* 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;
int ret, i, heads, sectors, cylinders;
struct partition *p;
uint32_t nr_sects;
buf = malloc(MAX_SECTOR_SIZE);
if (buf == NULL)
return -1;
ret = bdrv_read(s->bs, 0, buf, 1);
if (ret < 0)
{
free(buf);
return -1;
}
/* test msdos magic */
if (buf[510] != 0x55 || buf[511] != 0xaa)
{
free(buf);
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;
LOG_TRACE(TRACE_IDE, "IDE: guessed geometry LCHS=%d %d %d\n",
cylinders, heads, sectors);
free(buf);
return 0;
}
}
free(buf);
return -1;
}
static void ide_init2(IDEState *ide_state, BlockDriverState *hd0,
BlockDriverState *hd1)
{
IDEState *s;
static int drive_serial = 1;
int i, cylinders, heads, secs, translation, lba_detected = 0;
uint64_t nb_sectors;
for (i = 0; i < 2; i++)
{
s = ide_state + i;
s->io_buffer = malloc(MAX_MULT_SECTORS * MAX_SECTOR_SIZE + 4);
assert(s->io_buffer);
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);
translation = bdrv_get_translation_hint(s->bs);
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 */
lba_detected = 1;
goto default_geometry;
}
else
{
s->cylinders = cylinders;
s->heads = heads;
s->sectors = secs;
/* disable any translation to be in sync with
the logical geometry */
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;
if ((lba_detected == 1) && (translation == BIOS_ATA_TRANSLATION_AUTO))
{
if ((s->cylinders * s->heads) <= 131072)
{
bdrv_set_translation_hint(s->bs,
BIOS_ATA_TRANSLATION_LARGE);
}
else
{
bdrv_set_translation_hint(s->bs,
BIOS_ATA_TRANSLATION_LBA);
}
}
}
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++;
ide_reset(s);
}
}
/*----------------------------------------------------------------------------*/
static BlockDriverState *hd_table[2];
/**
* Initialize the IDE subsystem
*/
void Ide_Init(void)
{
int i;
if (!ConfigureParams.Ide[0].bUseDevice)
return;
opaque_ide_if = calloc(2, sizeof(IDEState));
assert(opaque_ide_if);
for (i = 0; i < 2; i++)
{
hd_table[i] = malloc(sizeof(BlockDriverState));
assert(hd_table[i]);
memset(hd_table[i], 0, sizeof(BlockDriverState));
if (ConfigureParams.Ide[i].bUseDevice)
{
int is_byteswap;
bdrv_open(hd_table[i], ConfigureParams.Ide[i].sDeviceFile, ConfigureParams.Ide[i].nBlockSize, 0);
nIDEPartitions += HDC_PartitionCount(hd_table[i]->fhndl, TRACE_IDE, &is_byteswap);
/* Our IDE implementation is little endian by default,
* so we need to byteswap if the image is not swapped! */
if (ConfigureParams.Ide[i].nByteSwap == BYTESWAP_AUTO)
hd_table[i]->byteswap = !is_byteswap;
else
hd_table[i]->byteswap = !ConfigureParams.Ide[i].nByteSwap;
hd_table[i]->sector_size = ConfigureParams.Ide[i].nBlockSize;
hd_table[i]->type = ConfigureParams.Ide[i].nDeviceType;
}
}
ide_init2(&opaque_ide_if[0], hd_table[0],
ConfigureParams.Ide[1].bUseDevice ? hd_table[1] : NULL);
}
/**
* Free resources from the IDE subsystem
*/
void Ide_UnInit(void)
{
int i;
for (i = 0; i < 2; i++)
{
if (hd_table[i])
{
if (bdrv_is_inserted(hd_table[i]))
{
bdrv_close(hd_table[i]);
}
free(hd_table[i]);
hd_table[i] = NULL;
}
}
if (opaque_ide_if)
{
for (i = 0; i < 2; i++)
{
if (opaque_ide_if[i].io_buffer)
{
free(opaque_ide_if[i].io_buffer);
opaque_ide_if[i].io_buffer = NULL;
}
}
free(opaque_ide_if);
opaque_ide_if = NULL;
}
nIDEPartitions = 0;
}
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