1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/media/pci/ivtv/ivtv-routing.c b/drivers/media/pci/ivtv/ivtv-routing.c
new file mode 100644
index 000000000..57d4d5a3c
--- /dev/null
+++ b/drivers/media/pci/ivtv/ivtv-routing.c
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+    Audio/video-routing-related ivtv functions.
+    Copyright (C) 2003-2004  Kevin Thayer <nufan_wfk at yahoo.com>
+    Copyright (C) 2005-2007  Hans Verkuil <hverkuil@xs4all.nl>
+
+ */
+
+#include "ivtv-driver.h"
+#include "ivtv-i2c.h"
+#include "ivtv-cards.h"
+#include "ivtv-gpio.h"
+#include "ivtv-routing.h"
+
+#include <media/drv-intf/msp3400.h>
+#include <media/i2c/m52790.h>
+#include <media/i2c/upd64031a.h>
+#include <media/i2c/upd64083.h>
+
+/* Selects the audio input and output according to the current
+   settings. */
+void ivtv_audio_set_io(struct ivtv *itv)
+{
+	const struct ivtv_card_audio_input *in;
+	u32 input, output = 0;
+
+	/* Determine which input to use */
+	if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags))
+		in = &itv->card->radio_input;
+	else
+		in = &itv->card->audio_inputs[itv->audio_input];
+
+	/* handle muxer chips */
+	input = in->muxer_input;
+	if (itv->card->hw_muxer & IVTV_HW_M52790)
+		output = M52790_OUT_STEREO;
+	v4l2_subdev_call(itv->sd_muxer, audio, s_routing,
+			input, output, 0);
+
+	input = in->audio_input;
+	output = 0;
+	if (itv->card->hw_audio & IVTV_HW_MSP34XX)
+		output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1);
+	ivtv_call_hw(itv, itv->card->hw_audio, audio, s_routing,
+			input, output, 0);
+}
+
+/* Selects the video input and output according to the current
+   settings. */
+void ivtv_video_set_io(struct ivtv *itv)
+{
+	int inp = itv->active_input;
+	u32 input;
+	u32 type;
+
+	v4l2_subdev_call(itv->sd_video, video, s_routing,
+		itv->card->video_inputs[inp].video_input, 0, 0);
+
+	type = itv->card->video_inputs[inp].video_type;
+
+	if (type == IVTV_CARD_INPUT_VID_TUNER) {
+		input = 0;  /* Tuner */
+	} else if (type < IVTV_CARD_INPUT_COMPOSITE1) {
+		input = 2;  /* S-Video */
+	} else {
+		input = 1;  /* Composite */
+	}
+
+	if (itv->card->hw_video & IVTV_HW_GPIO)
+		ivtv_call_hw(itv, IVTV_HW_GPIO, video, s_routing,
+				input, 0, 0);
+
+	if (itv->card->hw_video & IVTV_HW_UPD64031A) {
+		if (type == IVTV_CARD_INPUT_VID_TUNER ||
+		    type >= IVTV_CARD_INPUT_COMPOSITE1) {
+			/* Composite: GR on, connect to 3DYCS */
+			input = UPD64031A_GR_ON | UPD64031A_3DYCS_COMPOSITE;
+		} else {
+			/* S-Video: GR bypassed, turn it off */
+			input = UPD64031A_GR_OFF | UPD64031A_3DYCS_DISABLE;
+		}
+		input |= itv->card->gr_config;
+
+		ivtv_call_hw(itv, IVTV_HW_UPD64031A, video, s_routing,
+				input, 0, 0);
+	}
+
+	if (itv->card->hw_video & IVTV_HW_UPD6408X) {
+		input = UPD64083_YCS_MODE;
+		if (type > IVTV_CARD_INPUT_VID_TUNER &&
+		    type < IVTV_CARD_INPUT_COMPOSITE1) {
+			/* S-Video uses YCNR mode and internal Y-ADC, the
+			   upd64031a is not used. */
+			input |= UPD64083_YCNR_MODE;
+		}
+		else if (itv->card->hw_video & IVTV_HW_UPD64031A) {
+			/* Use upd64031a output for tuner and
+			   composite(CX23416GYC only) inputs */
+			if (type == IVTV_CARD_INPUT_VID_TUNER ||
+			    itv->card->type == IVTV_CARD_CX23416GYC) {
+				input |= UPD64083_EXT_Y_ADC;
+			}
+		}
+		ivtv_call_hw(itv, IVTV_HW_UPD6408X, video, s_routing,
+				input, 0, 0);
+	}
+}