V4L/DVB (3835): [PATCH] update pwc driver

Add v4l2 compatibility
Include the decompressor (legal problem has been resolv by Alan Cox)
Faster decoder and easier to maintain, optimize, ...
Can export to userland compressed stream
Support more cameras, lot of bugs are fixed.

Signed-off-by: Luc Saillard <luc@saillard.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 50 insertions, 0 deletions

diff --git a/drivers/media/video/pwc/pwc-dec1.c b/drivers/media/video/pwc/pwc-dec1.c
new file mode 100644
index 000000000000..c29593f589eb
--- /dev/null
+++ b/drivers/media/video/pwc/pwc-dec1.c
@@ -0,0 +1,50 @@
+/* Linux driver for Philips webcam
+   Decompression for chipset version 1
+   (C) 2004-2006 Luc Saillard (luc@saillard.org)
+
+   NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
+   driver and thus may have bugs that are not present in the original version.
+   Please send bug reports and support requests to <luc@saillard.org>.
+   The decompression routines have been implemented by reverse-engineering the
+   Nemosoft binary pwcx module. Caveat emptor.
+
+   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+
+
+#include "pwc-dec1.h"
+
+
+void pwc_dec1_init(int type, int release, void *buffer, void *table)
+{
+
+}
+
+void pwc_dec1_exit(void)
+{
+
+
+
+}
+
+int pwc_dec1_alloc(struct pwc_device *pwc)
+{
+        pwc->decompress_data = kmalloc(sizeof(struct pwc_dec1_private), GFP_KERNEL);
+        if (pwc->decompress_data == NULL)
+                return -ENOMEM;
+        return 0;
+}
+