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blkdev.cpp
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blkdev.cpp
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/*
* UAE - The Un*x Amiga Emulator
*
* lowlevel cd device glue, scsi emulator
*
* Copyright 2009-2010 Toni Wilen
*
*/
#include "sysconfig.h"
#include "sysdeps.h"
#include "options.h"
#include "memory.h"
#include "blkdev.h"
#include "scsidev.h"
#include "savestate.h"
#include "crc32.h"
#include "threaddep/thread.h"
#include "execio.h"
#ifdef RETROPLATFORM
#include "rp.h"
#endif
int log_scsiemu = 0;
#define PRE_INSERT_DELAY (3 * (currprefs.ntscmode ? 60 : 50))
static int scsiemu[MAX_TOTAL_SCSI_DEVICES];
static struct device_functions *device_func[MAX_TOTAL_SCSI_DEVICES];
static int openlist[MAX_TOTAL_SCSI_DEVICES];
static int waspaused[MAX_TOTAL_SCSI_DEVICES];
static int delayed[MAX_TOTAL_SCSI_DEVICES];
static uae_sem_t unitsem[MAX_TOTAL_SCSI_DEVICES];
static int unitsem_cnt[MAX_TOTAL_SCSI_DEVICES];
/* convert minutes, seconds and frames -> logical sector number */
int msf2lsn (int msf)
{
int sector = (((msf >> 16) & 0xff) * 60 * 75 + ((msf >> 8) & 0xff) * 75 + ((msf >> 0) & 0xff));
sector -= 150;
return sector;
}
/* convert logical sector number -> minutes, seconds and frames */
int lsn2msf (int sectors)
{
int msf;
sectors += 150;
msf = (sectors / (75 * 60)) << 16;
msf |= ((sectors / 75) % 60) << 8;
msf |= (sectors % 75) << 0;
return msf;
}
uae_u8 frombcd (uae_u8 v)
{
return (v >> 4) * 10 + (v & 15);
}
uae_u8 tobcd (uae_u8 v)
{
return ((v / 10) << 4) | (v % 10);
}
int fromlongbcd (uae_u8 *p)
{
return (frombcd (p[0]) << 16) | (frombcd (p[1]) << 8) | (frombcd (p[2]) << 0);
}
void tolongbcd (uae_u8 *p, int v)
{
p[0] = tobcd ((v >> 16) & 0xff);
p[1] = tobcd ((v >> 8) & 0xff);
p[2] = tobcd ((v >> 0) & 0xff);
}
static struct cd_toc *gettoc (struct cd_toc_head *th, int block)
{
for (int i = th->first_track_offset; i < th->last_track_offset; i++) {
struct cd_toc *t = &th->toc[i];
if (block < t->paddress) {
if (i == th->first_track_offset)
return t;
else
return t - 1;
}
}
return &th->toc[th->last_track_offset];
}
int isaudiotrack (struct cd_toc_head *th, int block)
{
struct cd_toc *t = gettoc (th, block);
if (!t)
return 0;
return (t->control & 0x0c) != 4;
}
int isdatatrack (struct cd_toc_head *th, int block)
{
return !isaudiotrack (th, block);
}
static int cdscsidevicetype[MAX_TOTAL_SCSI_DEVICES];
#ifdef _WIN32
#include "od-win32/win32.h"
extern struct device_functions devicefunc_win32_aspi;
extern struct device_functions devicefunc_win32_spti;
extern struct device_functions devicefunc_win32_ioctl;
extern struct device_functions devicefunc_cdimage;
static struct device_functions *devicetable[] = {
NULL,
&devicefunc_cdimage,
&devicefunc_win32_ioctl,
&devicefunc_win32_spti,
&devicefunc_win32_aspi,
NULL
};
static int driver_installed[6];
static void install_driver (int flags)
{
for (int i = 0; i < MAX_TOTAL_SCSI_DEVICES; i++) {
scsiemu[i] = false;
device_func[i] = NULL;
}
if (flags > 0) {
device_func[0] = devicetable[flags];
scsiemu[0] = true;
} else {
for (int i = 0; i < MAX_TOTAL_SCSI_DEVICES; i++) {
scsiemu[i] = false;
device_func[i] = NULL;
switch (cdscsidevicetype[i])
{
case SCSI_UNIT_IMAGE:
device_func[i] = devicetable[SCSI_UNIT_IMAGE];
scsiemu[i] = true;
break;
case SCSI_UNIT_IOCTL:
device_func[i] = devicetable[SCSI_UNIT_IOCTL];
scsiemu[i] = true;
break;
case SCSI_UNIT_SPTI:
if (currprefs.win32_uaescsimode == UAESCSI_CDEMU) {
device_func[i] = devicetable[SCSI_UNIT_IOCTL];
scsiemu[i] = true;
} else {
device_func[i] = devicetable[SCSI_UNIT_SPTI];
}
break;
case SCSI_UNIT_ASPI:
device_func[i] = devicetable[SCSI_UNIT_ASPI];
break;
}
}
}
for (int j = 1; devicetable[j]; j++) {
if (!driver_installed[j]) {
for (int i = 0; i < MAX_TOTAL_SCSI_DEVICES; i++) {
if (device_func[i] == devicetable[j]) {
int ok = device_func[i]->openbus (0);
driver_installed[j] = 1;
write_log (L"%s driver installed, ok=%d\n", device_func[i]->name, ok);
break;
}
}
}
}
}
#endif
void blkdev_default_prefs (struct uae_prefs *p)
{
for (int i = 0; i < MAX_TOTAL_SCSI_DEVICES; i++) {
p->cdslots[i].name[0] = 0;
p->cdslots[i].inuse = false;
p->cdslots[i].type = SCSI_UNIT_DEFAULT;
cdscsidevicetype[i] = SCSI_UNIT_DEFAULT;
}
}
void blkdev_fix_prefs (struct uae_prefs *p)
{
for (int i = 0; i < MAX_TOTAL_SCSI_DEVICES; i++) {
cdscsidevicetype[i] = p->cdslots[i].type;
if (p->cdslots[i].inuse == false && p->cdslots[i].name[0] && p->cdslots[i].type != SCSI_UNIT_DISABLED)
p->cdslots[i].inuse = true;
}
// blkdev_win32_aspi.cpp does not support multi units
if (currprefs.win32_uaescsimode >= UAESCSI_ASPI_FIRST) {
for (int i = 0; i < MAX_TOTAL_SCSI_DEVICES; i++) {
if (cdscsidevicetype[i] != SCSI_UNIT_DISABLED)
cdscsidevicetype[i] = SCSI_UNIT_ASPI;
}
return;
}
for (int i = 0; i < MAX_TOTAL_SCSI_DEVICES; i++) {
if (cdscsidevicetype[i] != SCSI_UNIT_DEFAULT)
continue;
if (p->cdslots[i].inuse || p->cdslots[i].name[0]) {
TCHAR *name = p->cdslots[i].name;
if (_tcslen (name) == 3 && name[1] == ':' && name[2] == '\\') {
if (currprefs.scsi && (currprefs.win32_uaescsimode == UAESCSI_SPTI || currprefs.win32_uaescsimode == UAESCSI_SPTISCAN))
cdscsidevicetype[i] = SCSI_UNIT_SPTI;
else
cdscsidevicetype[i] = SCSI_UNIT_IOCTL;
} else {
cdscsidevicetype[i] = SCSI_UNIT_IMAGE;
}
} else if (currprefs.scsi) {
if (currprefs.win32_uaescsimode == UAESCSI_CDEMU)
cdscsidevicetype[i] = SCSI_UNIT_IOCTL;
else if (currprefs.win32_uaescsimode >= UAESCSI_ASPI_FIRST)
cdscsidevicetype[i] = SCSI_UNIT_ASPI;
else
cdscsidevicetype[i] = SCSI_UNIT_SPTI;
} else {
cdscsidevicetype[i] = SCSI_UNIT_IOCTL;
}
}
}
static bool getsem (int unitnum, bool dowait)
{
if (unitsem[unitnum] == NULL)
uae_sem_init (&unitsem[unitnum], 0, 1);
bool gotit = false;
if (dowait) {
uae_sem_wait (&unitsem[unitnum]);
gotit = true;
} else {
gotit = uae_sem_trywait (&unitsem[unitnum]) == 0;
}
if (gotit)
unitsem_cnt[unitnum]++;
if (unitsem_cnt[unitnum] > 1)
write_log (L"CD: unitsem%d acquire mismatch! cnt=%d\n", unitnum, unitsem_cnt[unitnum]);
return gotit;
}
static bool getsem (int unitnum)
{
return getsem (unitnum, false);
}
static void freesem (int unitnum)
{
unitsem_cnt[unitnum]--;
if (unitsem_cnt[unitnum] < 0)
write_log (L"CD: unitsem%d release mismatch! cnt=%d\n", unitnum, unitsem_cnt[unitnum]);
uae_sem_post (&unitsem[unitnum]);
}
static void sys_command_close_internal (int unitnum)
{
getsem (unitnum, true);
waspaused[unitnum] = 0;
if (openlist[unitnum] <= 0)
write_log (L"BUG unit %d close: opencnt=%d!\n", unitnum, openlist[unitnum]);
if (device_func[unitnum]) {
device_func[unitnum]->closedev (unitnum);
if (openlist[unitnum] > 0)
openlist[unitnum]--;
}
freesem (unitnum);
if (openlist[unitnum] == 0) {
uae_sem_destroy (&unitsem[unitnum]);
unitsem[unitnum] = NULL;
}
}
static int sys_command_open_internal (int unitnum, const TCHAR *ident, cd_standard_unit csu)
{
int ret = 0;
if (unitsem[unitnum] == NULL)
uae_sem_init (&unitsem[unitnum], 0, 1);
getsem (unitnum, true);
if (openlist[unitnum])
write_log (L"BUG unit %d open: opencnt=%d!\n", unitnum, openlist[unitnum]);
if (device_func[unitnum]) {
ret = device_func[unitnum]->opendev (unitnum, ident, csu != CD_STANDARD_UNIT_DEFAULT);
if (ret)
openlist[unitnum]++;
}
freesem (unitnum);
return ret;
}
static int getunitinfo (int unitnum, int drive, cd_standard_unit csu, int *isaudio)
{
struct device_info di;
if (sys_command_info (unitnum, &di, 0)) {
write_log (L"Scanning drive %s: ", di.label);
if (di.media_inserted) {
if (isaudiotrack (&di.toc, 0)) {
if (*isaudio == 0)
*isaudio = drive;
write_log (L"CDA");
}
uae_u8 buffer[2048];
if (sys_command_cd_read (unitnum, buffer, 16, 1)) {
if (!memcmp (buffer + 8, "CDTV", 4) || !memcmp (buffer + 8, "CD32", 4) || !memcmp (buffer + 8, "COMM", 4)) {
uae_u32 crc;
write_log (L"CD32 or CDTV");
if (sys_command_cd_read (unitnum, buffer, 21, 1)) {
crc = get_crc32 (buffer, sizeof buffer);
if (crc == 0xe56c340f) {
write_log (L" [CD32.TM]");
if (csu == CD_STANDARD_UNIT_CD32) {
write_log (L"\n");
return 1;
}
}
}
if (csu == CD_STANDARD_UNIT_CDTV || csu == CD_STANDARD_UNIT_CD32) {
write_log (L"\n");
return 1;
}
}
}
} else {
write_log (L"no media");
}
}
write_log (L"\n");
return 0;
}
static int get_standard_cd_unit2 (cd_standard_unit csu)
{
int unitnum = 0;
int isaudio = 0;
if (currprefs.cdslots[unitnum].name[0] || currprefs.cdslots[unitnum].inuse) {
if (currprefs.cdslots[unitnum].name[0]) {
device_func_init (SCSI_UNIT_IOCTL);
if (!sys_command_open_internal (unitnum, currprefs.cdslots[unitnum].name, csu)) {
device_func_init (SCSI_UNIT_IMAGE);
if (!sys_command_open_internal (unitnum, currprefs.cdslots[unitnum].name, csu))
goto fallback;
}
} else {
goto fallback;
}
return unitnum;
}
device_func_init (SCSI_UNIT_IOCTL);
for (int drive = 'C'; drive <= 'Z'; ++drive) {
TCHAR vol[100];
_stprintf (vol, L"%c:\\", drive);
int drivetype = GetDriveType (vol);
if (drivetype == DRIVE_CDROM) {
if (sys_command_open_internal (unitnum, vol, csu)) {
if (getunitinfo (unitnum, drive, csu, &isaudio))
return unitnum;
sys_command_close (unitnum);
}
}
}
if (isaudio) {
TCHAR vol[100];
_stprintf (vol, L"%c:\\", isaudio);
if (sys_command_open_internal (unitnum, vol, csu))
return unitnum;
}
fallback:
device_func_init (SCSI_UNIT_IMAGE);
if (!sys_command_open_internal (unitnum, L"", csu)) {
write_log (L"image mounter failed to open as empty!?\n");
return -1;
}
return unitnum;
}
int get_standard_cd_unit (cd_standard_unit csu)
{
int unitnum = get_standard_cd_unit2 (csu);
if (unitnum < 0)
return -1;
delayed[unitnum] = 0;
if (currprefs.cdslots[unitnum].delayed) {
delayed[unitnum] = PRE_INSERT_DELAY;
}
return unitnum;
}
void close_standard_cd_unit (int unitnum)
{
sys_command_close (unitnum);
}
int sys_command_isopen (int unitnum)
{
return openlist[unitnum];
}
int sys_command_open (int unitnum)
{
waspaused[unitnum] = 0;
return sys_command_open_internal (unitnum, currprefs.cdslots[unitnum].name[0] ? currprefs.cdslots[unitnum].name : NULL, CD_STANDARD_UNIT_DEFAULT);
}
void sys_command_close (int unitnum)
{
sys_command_close_internal (unitnum);
}
void blkdev_cd_change (int unitnum, const TCHAR *name)
{
struct device_info di;
sys_command_info (unitnum, &di, 1);
#ifdef RETROPLATFORM
rp_cd_change (unitnum, di.media_inserted);
rp_cd_image_change (unitnum, name);
#endif
}
void device_func_reset (void)
{
}
int device_func_init (int flags)
{
device_func_reset ();
blkdev_fix_prefs (&currprefs);
install_driver (flags);
return 1;
}
void blkdev_entergui (void)
{
for (int i = 0; i < MAX_TOTAL_SCSI_DEVICES; i++) {
waspaused[i] = 0;
struct device_info di;
if (sys_command_info (i, &di, 1)) {
if (sys_command_cd_pause (i, 1) == 0)
waspaused[i] = 1;
}
}
}
void blkdev_exitgui (void)
{
for (int i = 0; i < MAX_TOTAL_SCSI_DEVICES; i++) {
if (waspaused[i]) {
struct device_info di;
if (sys_command_info (i, &di, 1)) {
sys_command_cd_pause (i, 0);
}
}
waspaused[i] = 0;
}
}
static TCHAR newimagefiles[MAX_TOTAL_SCSI_DEVICES][256];
static int imagechangetime[MAX_TOTAL_SCSI_DEVICES];
static bool cdimagefileinuse[MAX_TOTAL_SCSI_DEVICES], wasopen[MAX_TOTAL_SCSI_DEVICES];
static void check_changes (int unitnum)
{
bool changed = false;
if (device_func[unitnum] == NULL)
return;
if (delayed[unitnum]) {
delayed[unitnum]--;
if (delayed[unitnum] == 0)
write_log (L"CD: startup delayed insert '%s'\n", currprefs.cdslots[unitnum].name[0] ? currprefs.cdslots[unitnum].name : L"<EMPTY>");
return;
}
if (_tcscmp (changed_prefs.cdslots[unitnum].name, currprefs.cdslots[unitnum].name) != 0)
changed = true;
if (!changed && changed_prefs.cdslots[unitnum].name[0] == 0 && changed_prefs.cdslots[unitnum].inuse != currprefs.cdslots[unitnum].inuse)
changed = true;
if (changed) {
if (unitsem[unitnum])
getsem (unitnum, true);
cdimagefileinuse[unitnum] = changed_prefs.cdslots[unitnum].inuse;
_tcscpy (newimagefiles[unitnum], changed_prefs.cdslots[unitnum].name);
changed_prefs.cdslots[unitnum].name[0] = currprefs.cdslots[unitnum].name[0] = 0;
currprefs.cdslots[unitnum].inuse = changed_prefs.cdslots[unitnum].inuse;
int pollmode = 0;
imagechangetime[unitnum] = 3 * 50;
struct device_info di;
device_func[unitnum]->info (unitnum, &di, 0);
wasopen[unitnum] = di.open;
if (wasopen[unitnum]) {
device_func[unitnum]->closedev (unitnum);
if (currprefs.scsi) {
scsi_do_disk_change (unitnum, 0, &pollmode);
if (pollmode)
imagechangetime[unitnum] = 8 * 50;
}
}
write_log (L"CD: eject (%s)\n", pollmode ? L"slow" : L"fast");
#ifdef RETROPLATFORM
rp_cd_image_change (unitnum, NULL);
#endif
if (unitsem[unitnum])
freesem (unitnum);
}
if (imagechangetime[unitnum] == 0)
return;
imagechangetime[unitnum]--;
if (imagechangetime[unitnum] > 0)
return;
if (unitsem[unitnum])
getsem (unitnum, true);
_tcscpy (currprefs.cdslots[unitnum].name, newimagefiles[unitnum]);
_tcscpy (changed_prefs.cdslots[unitnum].name, newimagefiles[unitnum]);
currprefs.cdslots[unitnum].inuse = changed_prefs.cdslots[unitnum].inuse = cdimagefileinuse[unitnum];
newimagefiles[unitnum][0] = 0;
write_log (L"CD: delayed insert '%s'\n", currprefs.cdslots[unitnum].name[0] ? currprefs.cdslots[unitnum].name : L"<EMPTY>");
device_func_init (0);
if (wasopen[unitnum]) {
if (!device_func[unitnum]->opendev (unitnum, currprefs.cdslots[unitnum].name, 0)) {
write_log (L"-> device open failed\n");
}
}
wasopen[unitnum] = 0;
if (currprefs.scsi) {
struct device_info di;
device_func[unitnum]->info (unitnum, &di, 0);
int pollmode;
scsi_do_disk_change (unitnum, 1, &pollmode);
}
#ifdef RETROPLATFORM
rp_cd_image_change (unitnum, currprefs.cdslots[unitnum].name);
#endif
if (unitsem[unitnum])
freesem (unitnum);
config_changed = 1;
}
void blkdev_vsync (void)
{
for (int i = 0; i < MAX_TOTAL_SCSI_DEVICES; i++)
check_changes (i);
}
static int do_scsi (int unitnum, uae_u8 *cmd, int cmdlen)
{
return 0;
}
static int do_scsi (int unitnum, uae_u8 *cmd, int cmdlen, uae_u8 *out, int outsize)
{
return 0;
}
static int failunit (int unitnum)
{
if (unitnum < 0 || unitnum >= MAX_TOTAL_SCSI_DEVICES)
return 1;
if (device_func[unitnum] == NULL)
return 1;
return 0;
}
static int audiostatus (int unitnum)
{
if (!getsem (unitnum))
return 0;
uae_u8 cmd[10] = {0x42,2,0x40,1,0,0,0,(uae_u8)(DEVICE_SCSI_BUFSIZE>>8),(uae_u8)(DEVICE_SCSI_BUFSIZE&0xff),0};
uae_u8 *p = device_func[unitnum]->exec_in (unitnum, cmd, sizeof (cmd), 0);
freesem (unitnum);
if (!p)
return 0;
return p[1];
}
/* pause/unpause CD audio */
int sys_command_cd_pause (int unitnum, int paused)
{
if (failunit (unitnum))
return -1;
if (!getsem (unitnum))
return 0;
int v;
if (device_func[unitnum]->pause == NULL) {
int as = audiostatus (unitnum);
uae_u8 cmd[10] = {0x4b,0,0,0,0,0,0,0,paused?0:1,0};
do_scsi (unitnum, cmd, sizeof cmd);
v = as == AUDIO_STATUS_PAUSED;
} else {
v = device_func[unitnum]->pause (unitnum, paused);
}
freesem (unitnum);
return v;
}
/* stop CD audio */
void sys_command_cd_stop (int unitnum)
{
if (failunit (unitnum))
return;
if (!getsem (unitnum))
return;
if (device_func[unitnum]->stop == NULL) {
int as = audiostatus (unitnum);
uae_u8 cmd[6] = {0x4e,0,0,0,0,0};
do_scsi (unitnum, cmd, sizeof cmd);
} else {
device_func[unitnum]->stop (unitnum);
}
freesem (unitnum);
}
/* play CD audio */
int sys_command_cd_play (int unitnum, int startlsn, int endlsn, int scan)
{
int v;
if (failunit (unitnum))
return 0;
if (!getsem (unitnum))
return 0;
if (device_func[unitnum]->play == NULL) {
uae_u8 cmd[12] = {0,0,0,0,0,0,0,0,0,0,0,0};
int startmsf = lsn2msf (startlsn);
int endmsf = lsn2msf (endlsn);
cmd[0] = 0x47;
cmd[3] = (uae_u8)(startmsf >> 16);
cmd[4] = (uae_u8)(startmsf >> 8);
cmd[5] = (uae_u8)(startmsf >> 0);
cmd[6] = (uae_u8)(endmsf >> 16);
cmd[7] = (uae_u8)(endmsf >> 8);
cmd[8] = (uae_u8)(endmsf >> 0);
v = do_scsi (unitnum, cmd, sizeof cmd) ? 0 : 1;
} else {
v = device_func[unitnum]->play (unitnum, startlsn, endlsn, scan, NULL, NULL);
}
freesem (unitnum);
return v;
}
/* play CD audio with subchannels */
int sys_command_cd_play (int unitnum, int startlsn, int endlsn, int scan, play_status_callback statusfunc, play_subchannel_callback subfunc)
{
int v;
if (failunit (unitnum))
return 0;
if (!getsem (unitnum))
return 0;
if (device_func[unitnum]->play == NULL)
v = sys_command_cd_play (unitnum, startlsn, endlsn, scan);
else
v = device_func[unitnum]->play (unitnum, startlsn, endlsn, scan, statusfunc, subfunc);
freesem (unitnum);
return v;
}
/* set CD audio volume */
uae_u32 sys_command_cd_volume (int unitnum, uae_u16 volume_left, uae_u16 volume_right)
{
int v;
if (failunit (unitnum))
return 0;
if (!getsem (unitnum))
return 0;
if (device_func[unitnum]->volume == NULL)
v = -1;
else
v = device_func[unitnum]->volume (unitnum, volume_left, volume_right);
freesem (unitnum);
return v;
}
/* read qcode */
int sys_command_cd_qcode (int unitnum, uae_u8 *buf)
{
int v;
if (failunit (unitnum))
return 0;
if (!getsem (unitnum))
return 0;
if (device_func[unitnum]->qcode == NULL) {
uae_u8 cmd[10] = {0x42,2,0x40,1,0,0,0,(uae_u8)(SUBQ_SIZE>>8),(uae_u8)(SUBQ_SIZE&0xff),0};
v = do_scsi (unitnum, cmd, sizeof cmd, buf, SUBQ_SIZE);
} else {
v = device_func[unitnum]->qcode (unitnum, buf, -1);
}
freesem (unitnum);
return v;
};
/* read table of contents */
int sys_command_cd_toc (int unitnum, struct cd_toc_head *toc)
{
int v;
if (failunit (unitnum))
return 0;
if (!getsem (unitnum))
return 0;
if (device_func[unitnum]->toc == NULL) {
uae_u8 buf[4 + 8 * 103];
int size = sizeof buf;
uae_u8 cmd [10] = { 0x43,0,2,0,0,0,0,(uae_u8)(size>>8),(uae_u8)(size&0xff),0};
if (do_scsi (unitnum, cmd, sizeof cmd, buf, size)) {
// toc parse to do
v = 0;
}
v = 0;
} else {
v = device_func[unitnum]->toc (unitnum, toc);
}
freesem (unitnum);
return v;
}
/* read one cd sector */
int sys_command_cd_read (int unitnum, uae_u8 *data, int block, int size)
{
int v;
if (failunit (unitnum))
return 0;
if (!getsem (unitnum))
return 0;
if (device_func[unitnum]->read == NULL) {
uae_u8 cmd[12] = { 0xbe, 0, block >> 24, block >> 16, block >> 8, block >> 0, size >> 16, size >> 8, size >> 0, 0x10, 0, 0 };
cmd[1] = 2 << 3; // 2048
if (!do_scsi (unitnum, cmd, sizeof cmd, data, size * 2048))
cmd[1] = 4 << 3; // 2048 mode2
v = do_scsi (unitnum, cmd, sizeof cmd, data, size * 2048);
} else {
v = device_func[unitnum]->read (unitnum, data, block, size);
}
freesem (unitnum);
return v;
}
int sys_command_cd_rawread (int unitnum, uae_u8 *data, int block, int size, int sectorsize)
{
int v;
if (failunit (unitnum))
return -1;
if (!getsem (unitnum))
return 0;
if (device_func[unitnum]->rawread == NULL) {
uae_u8 cmd[12] = { 0xbe, 0, block >> 24, block >> 16, block >> 8, block >> 0, size >> 16, size >> 8, size >> 0, 0x10, 0, 0 };
v = do_scsi (unitnum, cmd, sizeof cmd, data, size * sectorsize);
} else {
v = device_func[unitnum]->rawread (unitnum, data, block, size, sectorsize, 0xffffffff);
}
freesem (unitnum);
return v;
}
int sys_command_cd_rawread (int unitnum, uae_u8 *data, int block, int size, int sectorsize, uae_u8 sectortype, uae_u8 scsicmd9, uae_u8 subs)
{
int v;
if (failunit (unitnum))
return -1;
if (!getsem (unitnum))
return 0;
if (device_func[unitnum]->rawread == NULL) {
uae_u8 cmd[12] = { 0xbe, 0, block >> 24, block >> 16, block >> 8, block >> 0, size >> 16, size >> 8, size >> 0, 0x10, 0, 0 };
v = do_scsi (unitnum, cmd, sizeof cmd, data, size * sectorsize);
} else {
v = device_func[unitnum]->rawread (unitnum, data, block, size, sectorsize, (sectortype << 16) | (scsicmd9 << 8) | subs);
}
freesem (unitnum);
return v;
}
/* read block */
int sys_command_read (int unitnum, uae_u8 *data, int block, int size)
{
int v;
if (failunit (unitnum))
return 0;
if (!getsem (unitnum))
return 0;
if (device_func[unitnum]->read == NULL) {
uae_u8 cmd[12] = { 0xa8, 0, 0, 0, 0, 0, size >> 24, size >> 16, size >> 8, size >> 0, 0, 0 };
cmd[2] = (uae_u8)(block >> 24);
cmd[3] = (uae_u8)(block >> 16);
cmd[4] = (uae_u8)(block >> 8);
cmd[5] = (uae_u8)(block >> 0);
v = do_scsi (unitnum, cmd, sizeof cmd, data, size * 2048);
} else {
v = device_func[unitnum]->read (unitnum, data, block, size);
}
freesem (unitnum);
return v;
}
/* write block */
int sys_command_write (int unitnum, uae_u8 *data, int offset, int size)
{
int v;
if (failunit (unitnum))
return 0;
if (!getsem (unitnum))
return 0;
if (device_func[unitnum]->write == NULL) {
v = 0;
} else {
v = device_func[unitnum]->write (unitnum, data, offset, size);
}
freesem (unitnum);
return v;
}
int sys_command_ismedia (int unitnum, int quick)
{
int v;
if (failunit (unitnum))
return -1;
if (delayed[unitnum])
return 0;
if (!getsem (unitnum))
return 0;
if (device_func[unitnum] == NULL) {
uae_u8 cmd[6] = { 0, 0, 0, 0, 0, 0 };
v = do_scsi (unitnum, cmd, sizeof cmd);
} else {
v = device_func[unitnum]->ismedia (unitnum, quick);
}
freesem (unitnum);
return v;
}
struct device_info *sys_command_info (int unitnum, struct device_info *di, int quick)
{
if (failunit (unitnum))
return NULL;
if (!getsem (unitnum))
return 0;
struct device_info *di2 = device_func[unitnum]->info (unitnum, di, quick);
if (di2 && delayed[unitnum])
di2->media_inserted = 0;
freesem (unitnum);
return di2;
}
#define MODE_SELECT_6 0x15
#define MODE_SENSE_6 0x1a
#define MODE_SELECT_10 0x55
#define MODE_SENSE_10 0x5a
void scsi_atapi_fixup_pre (uae_u8 *scsi_cmd, int *len, uae_u8 **datap, int *datalenp, int *parm)
{
uae_u8 cmd, *p, *data = *datap;
int l, datalen = *datalenp;
*parm = 0;
cmd = scsi_cmd[0];
if (cmd != MODE_SELECT_6 && cmd != MODE_SENSE_6)
return;
l = scsi_cmd[4];
if (l > 4)
l += 4;
scsi_cmd[7] = l >> 8;
scsi_cmd[8] = l;
if (cmd == MODE_SELECT_6) {
scsi_cmd[0] = MODE_SELECT_10;
scsi_cmd[9] = scsi_cmd[5];
scsi_cmd[2] = scsi_cmd[3] = scsi_cmd[4] = scsi_cmd[5] = scsi_cmd[6] = 0;
*len = 10;
p = xmalloc (uae_u8, 8 + datalen + 4);
if (datalen > 4)
memcpy (p + 8, data + 4, datalen - 4);
p[0] = 0;
p[1] = data[0];
p[2] = data[1];
p[3] = data[2];
p[4] = p[5] = p[6] = 0;
p[7] = data[3];
if (l > 8)
datalen += 4;
*parm = MODE_SELECT_10;
*datap = p;
} else {
scsi_cmd[0] = MODE_SENSE_10;
scsi_cmd[9] = scsi_cmd[5];
scsi_cmd[3] = scsi_cmd[4] = scsi_cmd[5] = scsi_cmd[6] = 0;
if (l > 8)
datalen += 4;
*datap = xmalloc (uae_u8, datalen);
*len = 10;
*parm = MODE_SENSE_10;
}
*datalenp = datalen;
}
void scsi_atapi_fixup_post (uae_u8 *scsi_cmd, int len, uae_u8 *olddata, uae_u8 *data, int *datalenp, int parm)
{
int datalen = *datalenp;
if (!data || !datalen)
return;
if (parm == MODE_SENSE_10) {
olddata[0] = data[1];
olddata[1] = data[2];
olddata[2] = data[3];
olddata[3] = data[7];
datalen -= 4;
if (datalen > 4)
memcpy (olddata + 4, data + 8, datalen - 4);
*datalenp = datalen;
}
}
static void scsi_atapi_fixup_inquiry (struct amigascsi *as)
{
uae_u8 *scsi_data = as->data;
uae_u32 scsi_len = as->len;
uae_u8 *scsi_cmd = as->cmd;
uae_u8 cmd;
cmd = scsi_cmd[0];
/* CDROM INQUIRY: most Amiga programs expect ANSI version == 2
* (ATAPI normally responds with zero)
*/
if (cmd == 0x12 && scsi_len > 2 && scsi_data) {
uae_u8 per = scsi_data[0];
uae_u8 b = scsi_data[2];
/* CDROM and ANSI version == 0 ? */
if ((per & 31) == 5 && (b & 7) == 0) {
b |= 2;
scsi_data[2] = b;
}
}
}
void scsi_log_before (uae_u8 *cdb, int cdblen, uae_u8 *data, int datalen)
{
int i;
for (i = 0; i < cdblen; i++) {
write_log (L"%s%02X", i > 0 ? "." : "", cdb[i]);
}
write_log (L"\n");
if (data) {
write_log (L"DATAOUT: %d\n", datalen);
for (i = 0; i < datalen && i < 100; i++)
write_log (L"%s%02X", i > 0 ? "." : "", data[i]);
if (datalen > 0)
write_log (L"\n");
}
}
void scsi_log_after (uae_u8 *data, int datalen, uae_u8 *sense, int senselen)
{
int i;
write_log (L"DATAIN: %d\n", datalen);
for (i = 0; i < datalen && i < 100 && data; i++)
write_log (L"%s%02X", i > 0 ? "." : "", data[i]);
if (data && datalen > 0)
write_log (L"\n");
if (senselen > 0) {
write_log (L"SENSE: %d,", senselen);
for (i = 0; i < senselen && i < 32; i++) {
write_log (L"%s%02X", i > 0 ? "." : "", sense[i]);
}
write_log (L"\n");
}
}
static bool nodisk (struct device_info *di)
{
return di->media_inserted == 0;
}
static uae_u64 cmd_readx (int unitnum, uae_u8 *dataptr, int offset, int len)
{
if (!getsem (unitnum))
return 0;
int v = device_func[unitnum]->read (unitnum, dataptr, offset, len);
freesem (unitnum);
if (v)
return len;
return 0;
}
static void wl (uae_u8 *p, int v)
{
p[0] = v >> 24;
p[1] = v >> 16;
p[2] = v >> 8;
p[3] = v;
}
static void ww (uae_u8 *p, int v)
{
p[0] = v >> 8;
p[1] = v;
}
static int rl (uae_u8 *p)
{
return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3]);
}
static int rw (uae_u8 *p)
{
return (p[0] << 8) | (p[1]);
}