static void *dev_thread (void *devs)
{
struct devstruct *dev = (struct devstruct*)devs;
uae_set_thread_priority (2);
dev->thread_running = 1;
uae_sem_post (&dev->sync_sem);
for (;;) {
uaecptr request = (uaecptr)read_comm_pipe_u32_blocking (&dev->requests);
uae_sem_wait (&change_sem);
if (!request) {
dev->thread_running = 0;
uae_sem_post (&dev->sync_sem);
uae_sem_post (&change_sem);
return 0;
} else if (get_async_request (dev, request, 1)) {
uae_ReplyMsg (request);
release_async_request (dev, request);
} else if (dev_do_io (dev, request, 0) == 0) {
uae_ReplyMsg (request);
} else {
add_async_request (dev, request);
uaeser_trigger (dev->sysdata);
}
uae_sem_post (&change_sem);
}
return 0;
}
static void *dev_thread (void *devs)
{
struct s2devstruct *dev = (struct s2devstruct*)devs;
uae_set_thread_priority (NULL, 1);
dev->thread_running = 1;
uae_sem_post (&dev->sync_sem);
for (;;) {
uaecptr request = (uaecptr)read_comm_pipe_u32_blocking (&dev->requests);
uae_sem_wait (&change_sem);
if (!request) {
dev->thread_running = 0;
uae_sem_post (&dev->sync_sem);
uae_sem_post (&change_sem);
write_log (_T("%s: dev_thread killed\n"), getdevname ());
return 0;
} else if (get_async_request (dev, request, 1)) {
uae_ReplyMsg (request);
release_async_request (dev, request);
rem_async_packet (dev, request);
} else if (dev_do_io (dev, request, 0) == 0) {
uae_ReplyMsg (request);
rem_async_packet (dev, request);
} else {
add_async_request (dev, request);
ethernet_trigger (dev->sysdata);
}
uae_sem_post (&change_sem);
}
return 0;
}
static void *dev_thread (void *devs)
{
struct devstruct *dev = devs;
uae_set_thread_priority (2);
dev->thread_running = 1;
sys_command_open_thread (DF_SCSI, dev->unitnum);
sys_command_open_thread (DF_IOCTL, dev->unitnum);
uae_sem_post (&dev->sync_sem);
for (;;) {
uaecptr request = (uaecptr)read_comm_pipe_u32_blocking (&dev->requests);
uae_sem_wait (&change_sem);
if (!request) {
dev->thread_running = 0;
uae_sem_post (&dev->sync_sem);
uae_sem_post (&change_sem);
break;
} else if (dev_do_io (dev, request) == 0) {
put_byte (request + 30, get_byte (request + 30) & ~1);
release_async_request (dev, request);
uae_ReplyMsg (request);
} else {
if (log_scsi)
write_log ("async request %08.8X\n", request);
}
uae_sem_post (&change_sem);
}
sys_command_close_thread (DF_SCSI, dev->unitnum);
sys_command_close_thread (DF_IOCTL, dev->unitnum);
return 0;
}
static void abort_async (struct devstruct *dev, uaecptr request, int errcode, int type)
{
int i;
i = 0;
while (i < MAX_ASYNC_REQUESTS) {
if (dev->d_request[i] == request && dev->d_request_type[i] == ASYNC_REQUEST_TEMP) {
/* ASYNC_REQUEST_TEMP = request is processing */
uae_msleep (10);
i = 0;
continue;
}
i++;
}
i = release_async_request (dev, request);
if (i >= 0 && log_scsi)
write_log ("asyncronous request=%08.8X aborted, error=%d\n", request, errcode);
}
static int dev_do_io (struct devstruct *dev, uaecptr request)
{
uae_u32 command;
uae_u32 io_data = get_long (request + 40); // 0x28
uae_u32 io_length = get_long (request + 36); // 0x24
uae_u32 io_actual = get_long (request + 32); // 0x20
uae_u32 io_offset = get_long (request + 44); // 0x2c
uae_u32 io_error = 0;
int async = 0;
struct device_info di;
struct priv_devstruct *pdev = getpdevstruct (request);
if (!pdev)
return 0;
command = get_word (request+28);
switch (command)
{
case CMD_READ:
io_error = command_read (pdev->mode, dev, io_data, io_offset, io_length, &io_actual);
break;
case CMD_WRITE:
case CMD_FORMAT:
io_error = 28; /* writeprotect */
break;
case CMD_UPDATE:
case CMD_CLEAR:
case CMD_FLUSH:
case CMD_MOTOR:
case CMD_SEEK:
io_actual = 0;
break;
case CMD_REMOVE:
io_actual = 0;
break;
case CMD_CHANGENUM:
io_actual = dev->changenum;
break;
case CMD_CHANGESTATE:
io_actual = devinfo(pdev->mode, dev->unitnum, &di)->media_inserted ? 0 : 1;
break;
case CMD_PROTSTATUS:
io_actual = devinfo(pdev->mode, dev->unitnum, &di)->write_protected ? -1 : 0;
break;
case CMD_GETDRIVETYPE:
io_actual = dev->drivetype;
break;
case CMD_GETNUMTRACKS:
io_actual = dev->di.cylinders;
break;
case CMD_ADDCHANGEINT:
io_error = add_async_request (dev, request, ASYNC_REQUEST_CHANGEINT, io_data);
if (!io_error)
async = 1;
break;
case CMD_REMCHANGEINT:
release_async_request (dev, request);
break;
case 28: /* HD_SCSICMD */
if (dev->allow_scsi && pdev->scsi) {
uae_u32 sdd = get_long (request + 40);
io_error = sys_command_scsi_direct (dev->unitnum, sdd);
if (log_scsi)
write_log ("scsidev: did io: sdd %p request %p error %d\n", sdd, request, get_byte (request + 31));
}
break;
default:
io_error = -3;
break;
}
put_long (request + 32, io_actual);
put_byte (request + 31, io_error);
io_log ("dev_io",request);
return async;
}