// SPDX-License-Identifier: GPL-2.0
// dice-presonus.c - a part of driver for DICE based devices
//
// Copyright (c) 2019 Takashi Sakamoto

#include "dice.h"

struct dice_presonus_spec {
        unsigned int tx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
        unsigned int rx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
        bool has_midi;
};

static const struct dice_presonus_spec dice_presonus_firesutio = {
        .tx_pcm_chs = {{16, 16, 0}, {10, 2, 0} },
        .rx_pcm_chs = {{16, 16, 0}, {10, 2, 0} },
        .has_midi = true,
};

int snd_dice_detect_presonus_formats(struct snd_dice *dice)
{
        static const struct {
                u32 model_id;
                const struct dice_presonus_spec *spec;
        } *entry, entries[] = {
                {0x000008, &dice_presonus_firesutio},
        };
        struct fw_csr_iterator it;
        int key, val, model_id;
        int i;

        model_id = 0;
        fw_csr_iterator_init(&it, dice->unit->directory);
        while (fw_csr_iterator_next(&it, &key, &val)) {
                if (key == CSR_MODEL) {
                        model_id = val;
                        break;
                }
        }

        for (i = 0; i < ARRAY_SIZE(entries); ++i) {
                entry = entries + i;
                if (entry->model_id == model_id)
                        break;
        }
        if (i == ARRAY_SIZE(entries))
                return -ENODEV;

        memcpy(dice->tx_pcm_chs, entry->spec->tx_pcm_chs,
               MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
        memcpy(dice->rx_pcm_chs, entry->spec->rx_pcm_chs,
               MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));

        if (entry->spec->has_midi) {
                dice->tx_midi_ports[0] = 1;
                dice->rx_midi_ports[0] = 1;
        }

        return 0;
}