Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / media / usb / pvrusb2 / pvrusb2-video-v4l.c

diff --git a/kernel/drivers/media/usb/pvrusb2/pvrusb2-video-v4l.c b/kernel/drivers/media/usb/pvrusb2/pvrusb2-video-v4l.c
new file mode 100644 (file)
index 0000000..139b397
--- /dev/null
+++ b/kernel/drivers/media/usb/pvrusb2/pvrusb2-video-v4l.c
@@ -0,0 +1,103 @@
+/*
+ *
+ *
+ *  Copyright (C) 2005 Mike Isely <isely@pobox.com>
+ *  Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
+ *
+ *  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
+ *
+ *  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
+ *
+ */
+
+/*
+
+   This source file is specifically designed to interface with the
+   saa711x support that is available in the v4l available starting
+   with linux 2.6.15.
+
+*/
+
+#include "pvrusb2-video-v4l.h"
+
+
+
+#include "pvrusb2-hdw-internal.h"
+#include "pvrusb2-debug.h"
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <media/saa7115.h>
+#include <linux/errno.h>
+
+struct routing_scheme {
+       const int *def;
+       unsigned int cnt;
+};
+
+
+static const int routing_scheme0[] = {
+       [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4,
+       /* In radio mode, we mute the video, but point at one
+          spot just to stay consistent */
+       [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5,
+       [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE5,
+       [PVR2_CVAL_INPUT_SVIDEO] =  SAA7115_SVIDEO2,
+};
+
+static const struct routing_scheme routing_def0 = {
+       .def = routing_scheme0,
+       .cnt = ARRAY_SIZE(routing_scheme0),
+};
+
+static const int routing_scheme1[] = {
+       [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4,
+       [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5,
+       [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE3,
+       [PVR2_CVAL_INPUT_SVIDEO] =  SAA7115_SVIDEO2, /* or SVIDEO0, it seems */
+};
+
+static const struct routing_scheme routing_def1 = {
+       .def = routing_scheme1,
+       .cnt = ARRAY_SIZE(routing_scheme1),
+};
+
+static const struct routing_scheme *routing_schemes[] = {
+       [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
+       [PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1,
+};
+
+void pvr2_saa7115_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
+{
+       if (hdw->input_dirty || hdw->force_dirty) {
+               const struct routing_scheme *sp;
+               unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
+               u32 input;
+
+               pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)",
+                          hdw->input_val);
+
+               sp = (sid < ARRAY_SIZE(routing_schemes)) ?
+                       routing_schemes[sid] : NULL;
+               if ((sp == NULL) ||
+                   (hdw->input_val < 0) ||
+                   (hdw->input_val >= sp->cnt)) {
+                       pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+                                  "*** WARNING *** subdev v4l2 set_input:"
+                                  " Invalid routing scheme (%u)"
+                                  " and/or input (%d)",
+                                  sid, hdw->input_val);
+                       return;
+               }
+               input = sp->def[hdw->input_val];
+               sd->ops->video->s_routing(sd, input, 0, 0);
+       }
+}