/**
* prev2resz_release - Releases device resources
*/
static int prev2resz_release(struct inode *inode, struct file *fp)
{
struct prev2resz_fhdl *fh = fp->private_data;
u32 timeout = 0;
while ((p2r_ctx.status.prv_busy != PREV2RESZ_FREE ||
p2r_ctx.status.rsz_busy != PREV2RESZ_FREE) &&
(timeout < 20)) {
timeout++;
schedule();
}
p2r_ctx.status.prv_busy = PREV2RESZ_FREE;
p2r_ctx.status.rsz_busy = PREV2RESZ_FREE;
p2r_ctx.opened--;
/* This will Free memory allocated to the buffers,
* and flushes the queue
*/
if (&fh->src_vbq)
videobuf_queue_cancel(&fh->src_vbq);
if (&fh->dst_vbq)
videobuf_queue_cancel(&fh->dst_vbq);
fp->private_data = NULL;
isp_stop(fh->isp);
kfree(fh);
isp_put();
return 0;
}
/**
* ispdss_put_resource - Release all the resource.
**/
void ispdss_put_resource()
{
struct isp_device *isp_res = dev_get_drvdata(dev_ctx.isp);
int i = 0;
if (dev_ctx.opened != 1)
return;
/* unmap output buffers if allocated */
for (i = 0; i < dev_ctx.num_video_buffers; ++i) {
if (dev_ctx.out_buf_virt_addr[i]) {
iommu_kunmap(isp_res->iommu,
dev_ctx.out_buf_virt_addr[i]);
dev_ctx.out_buf_virt_addr[i] = 0;
}
if (dev_ctx.in_buf_virt_addr[i]) {
iommu_kunmap(isp_res->iommu,
dev_ctx.in_buf_virt_addr[i]);
dev_ctx.in_buf_virt_addr[i] = 0;
}
}
ispdss_tmp_buf_free();
/* make device available */
dev_ctx.opened = 0;
/* stop the isp */
isp_stop(dev_ctx.isp);
/* release isp resource*/
isp_put();
return ;
}
