diff options
Diffstat (limited to 'drivers/media/video/ivtv/ivtv-routing.c')
| -rw-r--r-- | drivers/media/video/ivtv/ivtv-routing.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/drivers/media/video/ivtv/ivtv-routing.c b/drivers/media/video/ivtv/ivtv-routing.c new file mode 100644 index 0000000..398bd33 --- /dev/null +++ b/drivers/media/video/ivtv/ivtv-routing.c @@ -0,0 +1,116 @@ +/* + 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/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) +{ + struct v4l2_routing route; + u32 audio_input; + int mux_input; + + /* Determine which input to use */ + if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags)) { + audio_input = itv->card->radio_input.audio_input; + mux_input = itv->card->radio_input.muxer_input; + } else { + audio_input = itv->card->audio_inputs[itv->audio_input].audio_input; + mux_input = itv->card->audio_inputs[itv->audio_input].muxer_input; + } + + /* handle muxer chips */ + route.input = mux_input; + route.output = 0; + ivtv_i2c_hw(itv, itv->card->hw_muxer, VIDIOC_INT_S_AUDIO_ROUTING, &route); + + route.input = audio_input; + if (itv->card->hw_audio & IVTV_HW_MSP34XX) { + route.output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1); + } + ivtv_i2c_hw(itv, itv->card->hw_audio, VIDIOC_INT_S_AUDIO_ROUTING, &route); +} + +/* Selects the video input and output according to the current + settings. */ +void ivtv_video_set_io(struct ivtv *itv) +{ + struct v4l2_routing route; + int inp = itv->active_input; + u32 type; + + route.input = itv->card->video_inputs[inp].video_input; + route.output = 0; + itv->video_dec_func(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route); + + type = itv->card->video_inputs[inp].video_type; + + if (type == IVTV_CARD_INPUT_VID_TUNER) { + route.input = 0; /* Tuner */ + } else if (type < IVTV_CARD_INPUT_COMPOSITE1) { + route.input = 2; /* S-Video */ + } else { + route.input = 1; /* Composite */ + } + + if (itv->card->hw_video & IVTV_HW_GPIO) + ivtv_gpio(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route); + + 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 */ + route.input = UPD64031A_GR_ON | UPD64031A_3DYCS_COMPOSITE; + } else { + /* S-Video: GR bypassed, turn it off */ + route.input = UPD64031A_GR_OFF | UPD64031A_3DYCS_DISABLE; + } + route.input |= itv->card->gr_config; + + ivtv_upd64031a(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route); + } + + if (itv->card->hw_video & IVTV_HW_UPD6408X) { + route.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. */ + route.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)) { + route.input |= UPD64083_EXT_Y_ADC; + } + } + ivtv_upd64083(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route); + } +} |