LXR linux/drivers/media/pci/ivtv/ivtv-routing.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3    Audio/video-routing-related ivtv functions.
   4    Copyright (C) 2003-2004  Kevin Thayer <nufan_wfk at yahoo.com>
   5    Copyright (C) 2005-2007  Hans Verkuil <hverkuil@xs4all.nl>
   6
   7 */
   8
   9#include "ivtv-driver.h"
  10#include "ivtv-i2c.h"
  11#include "ivtv-cards.h"
  12#include "ivtv-gpio.h"
  13#include "ivtv-routing.h"
  14
  15#include <media/drv-intf/msp3400.h>
  16#include <media/i2c/m52790.h>
  17#include <media/i2c/upd64031a.h>
  18#include <media/i2c/upd64083.h>
  19
  20/* Selects the audio input and output according to the current
  21   settings. */
  22void ivtv_audio_set_io(struct ivtv *itv)
  23{
  24        const struct ivtv_card_audio_input *in;
  25        u32 input, output = 0;
  26
  27        /* Determine which input to use */
  28        if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags))
  29                in = &itv->card->radio_input;
  30        else
  31                in = &itv->card->audio_inputs[itv->audio_input];
  32
  33        /* handle muxer chips */
  34        input = in->muxer_input;
  35        if (itv->card->hw_muxer & IVTV_HW_M52790)
  36                output = M52790_OUT_STEREO;
  37        v4l2_subdev_call(itv->sd_muxer, audio, s_routing,
  38                        input, output, 0);
  39
  40        input = in->audio_input;
  41        output = 0;
  42        if (itv->card->hw_audio & IVTV_HW_MSP34XX)
  43                output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1);
  44        ivtv_call_hw(itv, itv->card->hw_audio, audio, s_routing,
  45                        input, output, 0);
  46}
  47
  48/* Selects the video input and output according to the current
  49   settings. */
  50void ivtv_video_set_io(struct ivtv *itv)
  51{
  52        int inp = itv->active_input;
  53        u32 input;
  54        u32 type;
  55
  56        v4l2_subdev_call(itv->sd_video, video, s_routing,
  57                itv->card->video_inputs[inp].video_input, 0, 0);
  58
  59        type = itv->card->video_inputs[inp].video_type;
  60
  61        if (type == IVTV_CARD_INPUT_VID_TUNER) {
  62                input = 0;  /* Tuner */
  63        } else if (type < IVTV_CARD_INPUT_COMPOSITE1) {
  64                input = 2;  /* S-Video */
  65        } else {
  66                input = 1;  /* Composite */
  67        }
  68
  69        if (itv->card->hw_video & IVTV_HW_GPIO)
  70                ivtv_call_hw(itv, IVTV_HW_GPIO, video, s_routing,
  71                                input, 0, 0);
  72
  73        if (itv->card->hw_video & IVTV_HW_UPD64031A) {
  74                if (type == IVTV_CARD_INPUT_VID_TUNER ||
  75                    type >= IVTV_CARD_INPUT_COMPOSITE1) {
  76                        /* Composite: GR on, connect to 3DYCS */
  77                        input = UPD64031A_GR_ON | UPD64031A_3DYCS_COMPOSITE;
  78                } else {
  79                        /* S-Video: GR bypassed, turn it off */
  80                        input = UPD64031A_GR_OFF | UPD64031A_3DYCS_DISABLE;
  81                }
  82                input |= itv->card->gr_config;
  83
  84                ivtv_call_hw(itv, IVTV_HW_UPD64031A, video, s_routing,
  85                                input, 0, 0);
  86        }
  87
  88        if (itv->card->hw_video & IVTV_HW_UPD6408X) {
  89                input = UPD64083_YCS_MODE;
  90                if (type > IVTV_CARD_INPUT_VID_TUNER &&
  91                    type < IVTV_CARD_INPUT_COMPOSITE1) {
  92                        /* S-Video uses YCNR mode and internal Y-ADC, the
  93                           upd64031a is not used. */
  94                        input |= UPD64083_YCNR_MODE;
  95                }
  96                else if (itv->card->hw_video & IVTV_HW_UPD64031A) {
  97                        /* Use upd64031a output for tuner and
  98                           composite(CX23416GYC only) inputs */
  99                        if (type == IVTV_CARD_INPUT_VID_TUNER ||
 100                            itv->card->type == IVTV_CARD_CX23416GYC) {
 101                                input |= UPD64083_EXT_Y_ADC;
 102                        }
 103                }
 104                ivtv_call_hw(itv, IVTV_HW_UPD6408X, video, s_routing,
 105                                input, 0, 0);
 106        }
 107}
 108