summaryrefslogtreecommitdiffstats
path: root/drivers/media/video/em28xx/em28xx-vbi.c
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 00:13:22 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-15 16:25:07 -0300
commit0c0d06cac63ee327ceaab4b5ffe2206574ab86bd (patch)
treee759f0dc3185d97f2a0c6b5cd5e32ea6faa74d40 /drivers/media/video/em28xx/em28xx-vbi.c
parent84cfe9e79bd5ac11c963f4841158454fefa872f6 (diff)
[media] rename most media/video usb drivers to media/usb
Rename all USB drivers with their own directory under drivers/media/video into drivers/media/usb and update the building system. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-vbi.c')
-rw-r--r--drivers/media/video/em28xx/em28xx-vbi.c145
1 files changed, 0 insertions, 145 deletions
diff --git a/drivers/media/video/em28xx/em28xx-vbi.c b/drivers/media/video/em28xx/em28xx-vbi.c
deleted file mode 100644
index 2b4c9cba2d6..00000000000
--- a/drivers/media/video/em28xx/em28xx-vbi.c
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- em28xx-vbi.c - VBI driver for em28xx
-
- Copyright (C) 2009 Devin Heitmueller <dheitmueller@kernellabs.com>
-
- This work was sponsored by EyeMagnet Limited.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/hardirq.h>
-#include <linux/init.h>
-
-#include "em28xx.h"
-
-static unsigned int vbibufs = 5;
-module_param(vbibufs, int, 0644);
-MODULE_PARM_DESC(vbibufs, "number of vbi buffers, range 2-32");
-
-static unsigned int vbi_debug;
-module_param(vbi_debug, int, 0644);
-MODULE_PARM_DESC(vbi_debug, "enable debug messages [vbi]");
-
-#define dprintk(level, fmt, arg...) if (vbi_debug >= level) \
- printk(KERN_DEBUG "%s: " fmt, dev->core->name , ## arg)
-
-/* ------------------------------------------------------------------ */
-
-static void
-free_buffer(struct videobuf_queue *vq, struct em28xx_buffer *buf)
-{
- struct em28xx_fh *fh = vq->priv_data;
- struct em28xx *dev = fh->dev;
- unsigned long flags = 0;
- if (in_interrupt())
- BUG();
-
- /* We used to wait for the buffer to finish here, but this didn't work
- because, as we were keeping the state as VIDEOBUF_QUEUED,
- videobuf_queue_cancel marked it as finished for us.
- (Also, it could wedge forever if the hardware was misconfigured.)
-
- This should be safe; by the time we get here, the buffer isn't
- queued anymore. If we ever start marking the buffers as
- VIDEOBUF_ACTIVE, it won't be, though.
- */
- spin_lock_irqsave(&dev->slock, flags);
- if (dev->isoc_ctl.vbi_buf == buf)
- dev->isoc_ctl.vbi_buf = NULL;
- spin_unlock_irqrestore(&dev->slock, flags);
-
- videobuf_vmalloc_free(&buf->vb);
- buf->vb.state = VIDEOBUF_NEEDS_INIT;
-}
-
-static int
-vbi_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
-{
- struct em28xx_fh *fh = q->priv_data;
- struct em28xx *dev = fh->dev;
-
- *size = dev->vbi_width * dev->vbi_height * 2;
-
- if (0 == *count)
- *count = vbibufs;
- if (*count < 2)
- *count = 2;
- if (*count > 32)
- *count = 32;
- return 0;
-}
-
-static int
-vbi_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
- enum v4l2_field field)
-{
- struct em28xx_fh *fh = q->priv_data;
- struct em28xx *dev = fh->dev;
- struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb);
- int rc = 0;
-
- buf->vb.size = dev->vbi_width * dev->vbi_height * 2;
-
- if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
- return -EINVAL;
-
- buf->vb.width = dev->vbi_width;
- buf->vb.height = dev->vbi_height;
- buf->vb.field = field;
-
- if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
- rc = videobuf_iolock(q, &buf->vb, NULL);
- if (rc < 0)
- goto fail;
- }
-
- buf->vb.state = VIDEOBUF_PREPARED;
- return 0;
-
-fail:
- free_buffer(q, buf);
- return rc;
-}
-
-static void
-vbi_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
-{
- struct em28xx_buffer *buf = container_of(vb,
- struct em28xx_buffer,
- vb);
- struct em28xx_fh *fh = vq->priv_data;
- struct em28xx *dev = fh->dev;
- struct em28xx_dmaqueue *vbiq = &dev->vbiq;
-
- buf->vb.state = VIDEOBUF_QUEUED;
- list_add_tail(&buf->vb.queue, &vbiq->active);
-}
-
-static void vbi_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
-{
- struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb);
- free_buffer(q, buf);
-}
-
-struct videobuf_queue_ops em28xx_vbi_qops = {
- .buf_setup = vbi_setup,
- .buf_prepare = vbi_prepare,
- .buf_queue = vbi_queue,
- .buf_release = vbi_release,
-};