V4L/DVB (13085): cx23885: Fix support for v4l2-dbg access to CX2388[578] and CX23417 regs

This changes corrects the ioctl() operations for both the CX2388[578] analog
video and MPEG video device nodes to properly and consistently support
VIDIOC_G_CHIP_IDENT, VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER ioctl()s.

This caused some ioctl() support routines to be broken out into a separate
source file.

Now v4l2-dbg can be used to manipulate CX2388[578] and CX23417 registers
including the CX2388[57] functions handled by the cx25840 module.

This was done in anticipation of developing a new v4l2_subdev for the
integrated IR controller of the CX23888.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/drivers/media/video/cx23885/cx23885-ioctl.h b/drivers/media/video/cx23885/cx23885-ioctl.h
new file mode 100644
index 000000000000..80b0f4923c6a
--- /dev/null
+++ b/drivers/media/video/cx23885/cx23885-ioctl.h
@@ -0,0 +1,39 @@
+/*
+ *  Driver for the Conexant CX23885/7/8 PCIe bridge
+ *
+ *  Various common ioctl() support functions
+ *
+ *  Copyright (c) 2009 Andy Walls <awalls@radix.net>
+ *
+ *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _CX23885_IOCTL_H_
+#define _CX23885_IOCTL_H_
+
+int cx23885_g_chip_ident(struct file *file, void *fh,
+                         struct v4l2_dbg_chip_ident *chip);
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+int cx23885_g_register(struct file *file, void *fh,
+                       struct v4l2_dbg_register *reg);
+
+
+int cx23885_s_register(struct file *file, void *fh,
+                       struct v4l2_dbg_register *reg);
+
+#endif
+#endif