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path: root/drivers/media/pci/ivtv/ivtv-routing.c
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Diffstat (limited to 'drivers/media/pci/ivtv/ivtv-routing.c')
-rw-r--r--drivers/media/pci/ivtv/ivtv-routing.c119
1 files changed, 119 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 000000000000..8898c569a1c9
--- /dev/null
+++ b/drivers/media/pci/ivtv/ivtv-routing.c
@@ -0,0 +1,119 @@
+/*
+ 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>
+
+ 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "ivtv-driver.h"
+#include "ivtv-i2c.h"
+#include "ivtv-cards.h"
+#include "ivtv-gpio.h"
+#include "ivtv-routing.h"
+
+#include <media/msp3400.h>
+#include <media/m52790.h>
+#include <media/upd64031a.h>
+#include <media/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);
+ }
+}