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. */
  22 void 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. */
  50 void 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 }