ALSA: dice: add stream format parameters for Weiss devices

Hard-coded stream format parameters are added for Weiss Engineering
FireWire devices. When the device vendor and model match, the parameters
are copied into the stream format cache. This allows for setting all
supported sampling rates up to 192kHz, and consequently adjusting the
number of available I/O channels.
Signed-off-by: Rolf Anderegg <rolf.anderegg@weiss.ch>
Signed-off-by: Michele Perrone <michele.perrone@weiss.ch>
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20230809002631.750120-1-o-takashi@sakamocchi.jpSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/dice/Makefile

@@ -2,5 +2,5 @@
 snd-dice-objs := dice-transaction.o dice-stream.o dice-proc.o dice-midi.o \
 		 dice-pcm.o dice-hwdep.o dice.o dice-tcelectronic.o \
 		 dice-alesis.o dice-extension.o dice-mytek.o dice-presonus.o \
-		 dice-harman.o dice-focusrite.o
+		 dice-harman.o dice-focusrite.o dice-weiss.o
 obj-$(CONFIG_SND_DICE) += snd-dice.o

sound/firewire/dice/dice-weiss.c

+// SPDX-License-Identifier: GPL-2.0
+// dice-weiss.c - a part of driver for DICE based devices
+//
+// Copyright (c) 2023 Rolf Anderegg and Michele Perrone
+
+#include "dice.h"
+
+struct dice_weiss_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];
+};
+
+// Weiss DAC202: 192kHz 2-channel DAC
+static const struct dice_weiss_spec dac202 = {
+	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+};
+
+// Weiss MAN301: 192kHz 2-channel music archive network player
+static const struct dice_weiss_spec man301 = {
+	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+};
+
+// Weiss INT202: 192kHz unidirectional 2-channel digital Firewire nterface
+static const struct dice_weiss_spec int202 = {
+	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+};
+
+// Weiss INT203: 192kHz bidirectional 2-channel digital Firewire nterface
+static const struct dice_weiss_spec int203 = {
+	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+};
+
+// Weiss ADC2: 192kHz A/D converter with microphone preamps and line nputs
+static const struct dice_weiss_spec adc2 = {
+	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+};
+
+// Weiss DAC2/Minerva: 192kHz 2-channel DAC
+static const struct dice_weiss_spec dac2_minerva = {
+	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+};
+
+// Weiss Vesta: 192kHz 2-channel Firewire to AES/EBU interface
+static const struct dice_weiss_spec vesta = {
+	.tx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+	.rx_pcm_chs = {{2, 2, 2}, {0, 0, 0} },
+};
+
+// Weiss AFI1: 192kHz 24-channel Firewire to ADAT or AES/EBU interface
+static const struct dice_weiss_spec afi1 = {
+	.tx_pcm_chs = {{24, 16, 8}, {0, 0, 0} },
+	.rx_pcm_chs = {{24, 16, 8}, {0, 0, 0} },
+};
+
+int snd_dice_detect_weiss_formats(struct snd_dice *dice)
+{
+	static const struct {
+		u32 model_id;
+		const struct dice_weiss_spec *spec;
+	} *entry, entries[] = {
+		{0x000007, &dac202},
+		{0x000008, &dac202}, // Maya edition: same audio I/O as DAC202.
+		{0x000006, &int202},
+		{0x00000a, &int203},
+		{0x00000b, &man301},
+		{0x000001, &adc2},
+		{0x000003, &dac2_minerva},
+		{0x000002, &vesta},
+		{0x000004, &afi1},
+	};
+	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));
+
+	return 0;
+}

sound/firewire/dice/dice.c

@@ -392,6 +392,69 @@ static const struct ieee1394_device_id dice_id_table[] = {
 		.model_id	= 0x0000de,
 		.driver_data	= (kernel_ulong_t)snd_dice_detect_focusrite_pro40_tcd3070_formats,
 	},
+	// Weiss DAC202: 192kHz 2-channel DAC
+	{
+		.match_flags	= IEEE1394_MATCH_VENDOR_ID | IEEE1394_MATCH_MODEL_ID,
+		.vendor_id	= OUI_WEISS,
+		.model_id	= 0x000007,
+		.driver_data	= (kernel_ulong_t)snd_dice_detect_weiss_formats,
+	},
+	// Weiss DAC202: 192kHz 2-channel DAC (Maya edition)
+	{
+		.match_flags	= IEEE1394_MATCH_VENDOR_ID | IEEE1394_MATCH_MODEL_ID,
+		.vendor_id	= OUI_WEISS,
+		.model_id	= 0x000008,
+		.driver_data	= (kernel_ulong_t)snd_dice_detect_weiss_formats,
+	},
+	// Weiss MAN301: 192kHz 2-channel music archive network player
+	{
+		.match_flags	= IEEE1394_MATCH_VENDOR_ID | IEEE1394_MATCH_MODEL_ID,
+		.vendor_id	= OUI_WEISS,
+		.model_id	= 0x00000b,
+		.driver_data	= (kernel_ulong_t)snd_dice_detect_weiss_formats,
+	},
+	// Weiss INT202: 192kHz unidirectional 2-channel digital Firewire face
+	{
+		.match_flags	= IEEE1394_MATCH_VENDOR_ID | IEEE1394_MATCH_MODEL_ID,
+		.vendor_id	= OUI_WEISS,
+		.model_id	= 0x000006,
+		.driver_data	= (kernel_ulong_t)snd_dice_detect_weiss_formats,
+	},
+	// Weiss INT203: 192kHz bidirectional 2-channel digital Firewire face
+	{
+		.match_flags	= IEEE1394_MATCH_VENDOR_ID | IEEE1394_MATCH_MODEL_ID,
+		.vendor_id	= OUI_WEISS,
+		.model_id	= 0x00000a,
+		.driver_data	= (kernel_ulong_t)snd_dice_detect_weiss_formats,
+	},
+	// Weiss ADC2: 192kHz A/D converter with microphone preamps and inputs
+	{
+		.match_flags	= IEEE1394_MATCH_VENDOR_ID | IEEE1394_MATCH_MODEL_ID,
+		.vendor_id	= OUI_WEISS,
+		.model_id	= 0x000001,
+		.driver_data	= (kernel_ulong_t)snd_dice_detect_weiss_formats,
+	},
+	// Weiss DAC2/Minerva: 192kHz 2-channel DAC
+	{
+		.match_flags	= IEEE1394_MATCH_VENDOR_ID | IEEE1394_MATCH_MODEL_ID,
+		.vendor_id	= OUI_WEISS,
+		.model_id	= 0x000003,
+		.driver_data	= (kernel_ulong_t)snd_dice_detect_weiss_formats,
+	},
+	// Weiss Vesta: 192kHz 2-channel Firewire to AES/EBU interface
+	{
+		.match_flags	= IEEE1394_MATCH_VENDOR_ID | IEEE1394_MATCH_MODEL_ID,
+		.vendor_id	= OUI_WEISS,
+		.model_id	= 0x000002,
+		.driver_data	= (kernel_ulong_t)snd_dice_detect_weiss_formats,
+	},
+	// Weiss AFI1: 192kHz 24-channel Firewire to ADAT or AES/EBU face
+	{
+		.match_flags	= IEEE1394_MATCH_VENDOR_ID | IEEE1394_MATCH_MODEL_ID,
+		.vendor_id	= OUI_WEISS,
+		.model_id	= 0x000004,
+		.driver_data	= (kernel_ulong_t)snd_dice_detect_weiss_formats,
+	},
 	{
 		.match_flags = IEEE1394_MATCH_VERSION,
 		.version     = DICE_INTERFACE,

sound/firewire/dice/dice.h

@@ -232,5 +232,6 @@ int snd_dice_detect_mytek_formats(struct snd_dice *dice);
 int snd_dice_detect_presonus_formats(struct snd_dice *dice);
 int snd_dice_detect_harman_formats(struct snd_dice *dice);
 int snd_dice_detect_focusrite_pro40_tcd3070_formats(struct snd_dice *dice);
+int snd_dice_detect_weiss_formats(struct snd_dice *dice);
 
 #endif