static void sd_release(struct inode * inode, struct file * file)
{
int target;
sync_dev(inode->i_rdev);
target = DEVICE_NR(MINOR(inode->i_rdev));
rscsi_disks[target].device->access_count--;
if(rscsi_disks[target].device->removable) {
if(!rscsi_disks[target].device->access_count)
sd_ioctl(inode, NULL, SCSI_IOCTL_DOORUNLOCK, 0);
};
}
DRESULT disk_ioctl(BYTE drv, BYTE ctrl,void *buff)
{
DSTATUS status = RES_PARERR;
spi1_lock();
{
switch(drv)
{
case driveNumFlashMem: status = flash_ioctl(ctrl, buff); break;
case driveNumSdCard: status = sd_ioctl(ctrl, buff); break;
default: status = RES_PARERR; break;
}
}
spi1_unlock();
return status;
}
static int sd_open(struct inode * inode, struct file * filp)
{
int target;
target = DEVICE_NR(MINOR(inode->i_rdev));
if(target >= NR_SD || !rscsi_disks[target].device)
return -ENODEV; /* No such device */
/* Make sure that only one process can do a check_change_disk at one time.
This is also used to lock out further access when the partition table is being re-read. */
while (rscsi_disks[target].device->busy);
if(rscsi_disks[target].device->removable) {
check_disk_change(inode->i_rdev);
if(!rscsi_disks[target].device->access_count)
sd_ioctl(inode, NULL, SCSI_IOCTL_DOORLOCK, 0);
};
rscsi_disks[target].device->access_count++;
return 0;
}
