V4L/DVB (3599): Implement new routing commands for wm8775 and cs53l32a.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/cs53l32a.c

@@ -59,20 +59,25 @@ static int cs53l32a_read(struct i2c_client *client, u8 reg)
 static int cs53l32a_command(struct i2c_client *client, unsigned int cmd,
 			    void *arg)
 {
-	struct v4l2_audio *input = arg;
+	struct v4l2_routing *route = arg;
 	struct v4l2_control *ctrl = arg;
 
 	switch (cmd) {
-	case VIDIOC_S_AUDIO:
+	case VIDIOC_INT_G_AUDIO_ROUTING:
+		route->input = (cs53l32a_read(client, 0x01) >> 4) & 3;
+		route->output = 0;
+		break;
+
+	case VIDIOC_INT_S_AUDIO_ROUTING:
 		/* There are 2 physical inputs, but the second input can be
 		   placed in two modes, the first mode bypasses the PGA (gain),
 		   the second goes through the PGA. Hence there are three
 		   possible inputs to choose from. */
-		if (input->index > 2) {
-			v4l_err(client, "Invalid input %d.\n", input->index);
+		if (route->input > 2) {
+			v4l_err(client, "Invalid input %d.\n", route->input);
 			return -EINVAL;
 		}
-		cs53l32a_write(client, 0x01, 0x01 + (input->index << 4));
+		cs53l32a_write(client, 0x01, 0x01 + (route->input << 4));
 		break;
 
 	case VIDIOC_G_CTRL:

drivers/media/video/wm8775.c

@@ -79,21 +79,26 @@ static int wm8775_command(struct i2c_client *client, unsigned int cmd,
 			  void *arg)
 {
 	struct wm8775_state *state = i2c_get_clientdata(client);
-	struct v4l2_audio *input = arg;
+	struct v4l2_routing *route = arg;
 	struct v4l2_control *ctrl = arg;
 
 	switch (cmd) {
-	case VIDIOC_S_AUDIO:
+	case VIDIOC_INT_G_AUDIO_ROUTING:
+		route->input = state->input;
+		route->output = 0;
+		break;
+
+	case VIDIOC_INT_S_AUDIO_ROUTING:
 		/* There are 4 inputs and one output. Zero or more inputs
 		   are multiplexed together to the output. Hence there are
 		   16 combinations.
 		   If only one input is active (the normal case) then the
 		   input values 1, 2, 4 or 8 should be used. */
-		if (input->index > 15) {
-			v4l_err(client, "Invalid input %d.\n", input->index);
+		if (route->input > 15) {
+			v4l_err(client, "Invalid input %d.\n", route->input);
 			return -EINVAL;
 		}
-		state->input = input->index;
+		state->input = route->input;
 		if (state->muted)
 			break;
 		wm8775_write(client, R21, 0x0c0);

include/media/cs53l32a.h

+/*
+    cs53l32a.h - definition for cs53l32a inputs and outputs
+
+    Copyright (C) 2006 Hans Verkuil (hverkuil@xs4all.nl)
+
+    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 _CS53L32A_H_
+#define _CS53L32A_H_
+
+/* There are 2 physical inputs, but the second input can be
+   placed in two modes, the first mode bypasses the PGA (gain),
+   the second goes through the PGA. Hence there are three
+   possible inputs to choose from. */
+
+/* CS53L32A HW inputs */
+#define CS53L32A_IN0 0
+#define CS53L32A_IN1 1
+#define CS53L32A_IN2 2
+
+#endif

include/media/wm8775.h

+/*
+    wm8775.h - definition for wm8775 inputs and outputs
+
+    Copyright (C) 2006 Hans Verkuil (hverkuil@xs4all.nl)
+
+    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 _WM8775_H_
+#define _WM8775_H_
+
+/* The WM8775 has 4 inputs and one output. Zero or more inputs
+   are multiplexed together to the output. Hence there are
+   16 combinations.
+   If only one input is active (the normal case) then the
+   input values 1, 2, 4 or 8 should be used. */
+
+#define WM8775_AIN1 1
+#define WM8775_AIN2 2
+#define WM8775_AIN3 4
+#define WM8775_AIN4 8
+
+#endif