From 634ba268b965b57da1f60edbc57f14299a5326f6 Mon Sep 17 00:00:00 2001
From: Mike Isely <isely@pobox.com>
Date: Sat, 7 Mar 2009 00:54:02 -0300
Subject: [PATCH] V4L/DVB (11182): pvrusb2: Tie in cx25840 sub-device support

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 .../media/video/pvrusb2/pvrusb2-cx2584x-v4l.c | 52 ++++++++++++++++---
 .../media/video/pvrusb2/pvrusb2-cx2584x-v4l.h |  5 ++
 drivers/media/video/pvrusb2/pvrusb2-hdw.c     |  2 +
 3 files changed, 51 insertions(+), 8 deletions(-)

diff --git a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c b/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c
index 9494c6a5b5d8..9df3623a3e4c 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c
@@ -39,14 +39,6 @@
 #include <linux/errno.h>
 #include <linux/slab.h>
 
-struct pvr2_v4l_cx2584x {
-	struct pvr2_i2c_handler handler;
-	struct pvr2_decoder_ctrl ctrl;
-	struct pvr2_i2c_client *client;
-	struct pvr2_hdw *hdw;
-	unsigned long stale_mask;
-};
-
 
 struct routing_scheme_item {
 	int vid;
@@ -110,6 +102,15 @@ static const struct routing_scheme routing_schemes[] = {
 	},
 };
 
+struct pvr2_v4l_cx2584x {
+	struct pvr2_i2c_handler handler;
+	struct pvr2_decoder_ctrl ctrl;
+	struct pvr2_i2c_client *client;
+	struct pvr2_hdw *hdw;
+	unsigned long stale_mask;
+};
+
+
 static void set_input(struct pvr2_v4l_cx2584x *ctxt)
 {
 	struct pvr2_hdw *hdw = ctxt->hdw;
@@ -321,6 +322,41 @@ int pvr2_i2c_cx2584x_v4l_setup(struct pvr2_hdw *hdw,
 }
 
 
+void pvr2_cx25840_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
+{
+	if (hdw->input_dirty) {
+		struct v4l2_routing route;
+		enum cx25840_video_input vid_input;
+		enum cx25840_audio_input aud_input;
+		const struct routing_scheme *sp;
+		unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
+
+		memset(&route, 0, sizeof(route));
+
+		if ((sid < ARRAY_SIZE(routing_schemes)) &&
+		    ((sp = routing_schemes + sid) != NULL) &&
+		    (hdw->input_val >= 0) &&
+		    (hdw->input_val < sp->cnt)) {
+			vid_input = sp->def[hdw->input_val].vid;
+			aud_input = sp->def[hdw->input_val].aud;
+		} else {
+			pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+				   "*** WARNING *** subdev cx2584x set_input:"
+				   " Invalid routing scheme (%u)"
+				   " and/or input (%d)",
+				   sid, hdw->input_val);
+			return;
+		}
+
+		pvr2_trace(PVR2_TRACE_CHIPS,
+			   "i2c cx2584x set_input vid=0x%x aud=0x%x",
+			   vid_input, aud_input);
+		route.input = (u32)vid_input;
+		sd->ops->video->s_routing(sd, &route);
+		route.input = (u32)aud_input;
+		sd->ops->audio->s_routing(sd, &route);
+	}
+}
 
 
 
diff --git a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.h b/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.h
index f664f5942002..e48ce808bfe5 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.h
@@ -39,6 +39,11 @@
 int pvr2_i2c_cx2584x_v4l_setup(struct pvr2_hdw *,struct pvr2_i2c_client *);
 
 
+#include "pvrusb2-hdw-internal.h"
+
+void pvr2_cx25840_subdev_update(struct pvr2_hdw *, struct v4l2_subdev *sd);
+
+
 #endif /* __PVRUSB2_CX2584X_V4L_H */
 
 /*
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index ff7af062002b..1158021b1e12 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -38,6 +38,7 @@
 #include "pvrusb2-fx2-cmd.h"
 #include "pvrusb2-wm8775.h"
 #include "pvrusb2-video-v4l.h"
+#include "pvrusb2-cx2584x-v4l.h"
 #include "pvrusb2-audio.h"
 
 #define TV_MIN_FREQ     55250000L
@@ -115,6 +116,7 @@ static const pvr2_subdev_update_func pvr2_module_update_functions[] = {
 	[PVR2_CLIENT_ID_WM8775] = pvr2_wm8775_subdev_update,
 	[PVR2_CLIENT_ID_SAA7115] = pvr2_saa7115_subdev_update,
 	[PVR2_CLIENT_ID_MSP3400] = pvr2_msp3400_subdev_update,
+	[PVR2_CLIENT_ID_CX25840] = pvr2_cx25840_subdev_update,
 };
 
 static const char *module_names[] = {
-- 
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