void scsi_dev_attached(struct scsi_dev *dev) {
dev->attached = 1;
dev->state = dev->holded_state = NULL;
scsi_state_transit(dev, &scsi_state_inquiry);
}
void scsi_dev_recover(struct scsi_dev *dev) {
assertf(dev->holded_state == NULL, "Can't recover recovering procedure");
dev->holded_state = dev->state;
scsi_state_transit(dev, &scsi_state_sense);
}
static void scsi_inquiry_input(struct scsi_dev *dev, int res) {
struct scsi_data_inquiry *data;
assert(res == 0);
data = (struct scsi_data_inquiry *) dev->scsi_data_scratchpad;
if ((data->dinq_devtype & SCSI_INQIRY_DEVTYPE_MASK)
!= SCSI_INQIRY_DEVTYPE_BLK) {
return;
}
scsi_state_transit(dev, &scsi_state_capacity);
}
static void scsi_sense_input(struct scsi_dev *dev, int res) {
struct scsi_data_sense *data;
uint8_t acode;
assert(res == 0);
data = (struct scsi_data_sense *) dev->scsi_data_scratchpad;
acode = data->dsns_additional_code;
assertf(acode == 0x28 || acode == 0x29, "Don't know how to recover "
"unknown error %x", acode);
/* 0x28 and 0x29 are just required attention, seems that can go on */
scsi_state_transit(dev, dev->holded_state);
dev->holded_state = NULL;
}
void scsi_disk_found(struct scsi_dev *sdev) {
struct block_dev *bdev;
char path[PATH_MAX];
strcpy(path, "/dev/sd*");
if (0 > (sdev->idx = block_dev_named(path, &scsi_disk_idx))) {
return;
}
bdev = block_dev_create(path, (void *) &bdev_driver_scsi, sdev);
bdev->size = sdev->blk_n * sdev->blk_size;
sdev->bdev = bdev;
scsi_state_transit(sdev, &scsi_state_user);
}