// 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@kernel.org>

 */

#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);
        }
}