// SPDX-License-Identifier: GPL-2.0
/*
 * dice-alesis.c - a part of driver for DICE based devices
 *
 * Copyright (c) 2018 Takashi Sakamoto
 */

#include "dice.h"

static const unsigned int
alesis_io14_tx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT] = {
        {6, 6, 4},      /* Tx0 = Analog + S/PDIF. */
        {8, 4, 0},      /* Tx1 = ADAT1. */
};

static const unsigned int
alesis_io26_tx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT] = {
        {10, 10, 4},    /* Tx0 = Analog + S/PDIF. */
        {16, 4, 0},     /* Tx1 = ADAT1 + ADAT2 (available at low rate). */
};

int snd_dice_detect_alesis_formats(struct snd_dice *dice)
{
        __be32 reg;
        u32 data;
        int i;
        int err;

        err = snd_dice_transaction_read_tx(dice, TX_NUMBER_AUDIO, &reg,
                                           sizeof(reg));
        if (err < 0)
                return err;
        data = be32_to_cpu(reg);

        if (data == 4 || data == 6) {
                memcpy(dice->tx_pcm_chs, alesis_io14_tx_pcm_chs,
                                MAX_STREAMS * SND_DICE_RATE_MODE_COUNT *
                                sizeof(unsigned int));
        } else {
                memcpy(dice->tx_pcm_chs, alesis_io26_tx_pcm_chs,
                                MAX_STREAMS * SND_DICE_RATE_MODE_COUNT *
                                sizeof(unsigned int));
        }

        for (i = 0; i < SND_DICE_RATE_MODE_COUNT; ++i)
                dice->rx_pcm_chs[0][i] = 8;

        dice->tx_midi_ports[0] = 1;
        dice->rx_midi_ports[0] = 1;

        return 0;
}

int snd_dice_detect_alesis_mastercontrol_formats(struct snd_dice *dice)
{
        int i;

        dice->tx_pcm_chs[0][SND_DICE_RATE_MODE_LOW]     = 16;
        dice->tx_pcm_chs[1][SND_DICE_RATE_MODE_LOW]     = 12;
        dice->tx_pcm_chs[0][SND_DICE_RATE_MODE_MIDDLE]  = 12;
        dice->tx_pcm_chs[1][SND_DICE_RATE_MODE_MIDDLE]  = 4;
        dice->tx_pcm_chs[0][SND_DICE_RATE_MODE_HIGH]    = 8;
        dice->tx_pcm_chs[1][SND_DICE_RATE_MODE_HIGH]    = 0;

        for (i = 0; i < SND_DICE_RATE_MODE_COUNT; ++i) {
                dice->rx_pcm_chs[0][i] = 6;
                dice->rx_pcm_chs[1][i] = 0;
        }

        for (i = 0; i < MAX_STREAMS; ++i) {
                dice->tx_midi_ports[i] = 2;
                dice->rx_midi_ports[i] = 2;
        }

        return 0;
}