dice-weiss.c

  1// SPDX-License-Identifier: GPL-2.0
  2// dice-weiss.c - a part of driver for DICE based devices
  3//
  4// Copyright (c) 2023 Rolf Anderegg and Michele Perrone
  5
  6#include "dice.h"
  7
  8struct dice_weiss_spec {
  9	unsigned int tx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
 10	unsigned int rx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
 11};
 12
 13// Weiss DAC202: 192kHz 2-channel DAC
 14static const struct dice_weiss_spec dac202 = {
 15	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 16	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 17};
 18
 19// Weiss MAN301: 192kHz 2-channel music archive network player
 20static const struct dice_weiss_spec man301 = {
 21	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 22	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 23};
 24
 25// Weiss INT202: 192kHz unidirectional 2-channel digital Firewire nterface
 26static const struct dice_weiss_spec int202 = {
 27	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 28	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 29};
 30
 31// Weiss INT203: 192kHz bidirectional 2-channel digital Firewire nterface
 32static const struct dice_weiss_spec int203 = {
 33	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 34	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 35};
 36
 37// Weiss ADC2: 192kHz A/D converter with microphone preamps and line nputs
 38static const struct dice_weiss_spec adc2 = {
 39	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 40	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 41};
 42
 43// Weiss DAC2/Minerva: 192kHz 2-channel DAC
 44static const struct dice_weiss_spec dac2_minerva = {
 45	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 46	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 47};
 48
 49// Weiss Vesta: 192kHz 2-channel Firewire to AES/EBU interface
 50static const struct dice_weiss_spec vesta = {
 51	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 52	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
 53};
 54
 55// Weiss AFI1: 192kHz 24-channel Firewire to ADAT or AES/EBU interface
 56static const struct dice_weiss_spec afi1 = {
 57	.tx_pcm_chs = {{24, 16, 8}, {0, 0, 0} },
 58	.rx_pcm_chs = {{24, 16, 8}, {0, 0, 0} },
 59};
 60
 61int snd_dice_detect_weiss_formats(struct snd_dice *dice)
 62{
 63	static const struct {
 64		u32 model_id;
 65		const struct dice_weiss_spec *spec;
 66	} *entry, entries[] = {
 67		{0x000007, &dac202},
 68		{0x000008, &dac202}, // Maya edition: same audio I/O as DAC202.
 69		{0x000006, &int202},
 70		{0x00000a, &int203},
 71		{0x00000b, &man301},
 72		{0x000001, &adc2},
 73		{0x000003, &dac2_minerva},
 74		{0x000002, &vesta},
 75		{0x000004, &afi1},
 76	};
 77	struct fw_csr_iterator it;
 78	int key, val, model_id;
 79	int i;
 80
 81	model_id = 0;
 82	fw_csr_iterator_init(&it, dice->unit->directory);
 83	while (fw_csr_iterator_next(&it, &key, &val)) {
 84		if (key == CSR_MODEL) {
 85			model_id = val;
 86			break;
 87		}
 88	}
 89
 90	for (i = 0; i < ARRAY_SIZE(entries); ++i) {
 91		entry = entries + i;
 92		if (entry->model_id == model_id)
 93			break;
 94	}
 95	if (i == ARRAY_SIZE(entries))
 96		return -ENODEV;
 97
 98	memcpy(dice->tx_pcm_chs, entry->spec->tx_pcm_chs,
 99	       MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
100	memcpy(dice->rx_pcm_chs, entry->spec->rx_pcm_chs,
101	       MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
102
103	return 0;
104}