Fix incorrect video1394 timestamps.

 *

 * NOTES:

 *

 * jds -- add private data to file to keep track of iso contexts associated

 * with each open -- so release won't kill all iso transfers.

 * 

 * Damien Douxchamps: Fix failure when the number of DMA pages per frame is

 * one.

 * 

 * ioctl return codes:

 * EFAULT is only for invalid address for the argp

 * EINVAL for out of range values

 * ENOTTY for unsupported ioctl request

 *

 */

/* Markus Tavenrath <speedygoo@speedygoo.de> :

   - fixed checks for valid buffer-numbers in video1394_icotl

   - changed the ways the dma prg's are used, now it's possible to use

     even a single dma buffer

*/

#include <linux/config.h>

#include <linux/kernel.h>

#include <linux/list.h>

		if (d->ir_prg[i][d->nb_cmd-1].status & cpu_to_le32(0xFFFF0000)) {

			reset_ir_status(d, i);

			d->buffer_status[d->buffer_prg_assignment[i]] = VIDEO1394_BUFFER_READY;

			do_gettimeofday(&d->buffer_time[i]);

			do_gettimeofday(&d->buffer_time[d->buffer_prg_assignment[i]]);

		}

	}

		/* set time of buffer */

		v.filltime = d->buffer_time[v.buffer];

//		printk("Buffer %d time %d\n", v.buffer, (d->buffer_time[v.buffer]).tv_usec);

		/*

		 * Look ahead to see how many more buffers have been received

		spin_lock_irqsave(&d->lock,flags);

		// last_buffer is last_prg

		/* last_buffer is last_prg */

		next_prg = (d->last_buffer + 1) % d->num_desc;

		if (d->buffer_status[v.buffer]!=VIDEO1394_BUFFER_FREE) {

			PRINT(KERN_ERR, ohci->host->id,