[mirror_ubuntu-jammy-kernel.git] / sound / firewire / fireworks / fireworks.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * fireworks.c - a part of driver for Fireworks based devices
 *
 * Copyright (c) 2009-2010 Clemens Ladisch
 * Copyright (c) 2013-2014 Takashi Sakamoto
 */

/*
 * Fireworks is a board module which Echo Audio produced. This module consists
 * of three chipsets:
 *  - Communication chipset for IEEE1394 PHY/Link and IEC 61883-1/6
 *  - DSP or/and FPGA for signal processing
 *  - Flash Memory to store firmwares
 */

#include "fireworks.h"

MODULE_DESCRIPTION("Echo Fireworks driver");
MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
MODULE_LICENSE("GPL v2");

static int index[SNDRV_CARDS]	= SNDRV_DEFAULT_IDX;
static char *id[SNDRV_CARDS]	= SNDRV_DEFAULT_STR;
static bool enable[SNDRV_CARDS]	= SNDRV_DEFAULT_ENABLE_PNP;
unsigned int snd_efw_resp_buf_size	= 1024;
bool snd_efw_resp_buf_debug		= false;

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "card index");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "enable Fireworks sound card");
module_param_named(resp_buf_size, snd_efw_resp_buf_size, uint, 0444);
MODULE_PARM_DESC(resp_buf_size,
		 "response buffer size (max 4096, default 1024)");
module_param_named(resp_buf_debug, snd_efw_resp_buf_debug, bool, 0444);
MODULE_PARM_DESC(resp_buf_debug, "store all responses to buffer");

static DEFINE_MUTEX(devices_mutex);
static DECLARE_BITMAP(devices_used, SNDRV_CARDS);

#define VENDOR_LOUD			0x000ff2
#define  MODEL_MACKIE_400F		0x00400f
#define  MODEL_MACKIE_1200F		0x01200f

#define VENDOR_ECHO			0x001486
#define  MODEL_ECHO_AUDIOFIRE_12	0x00af12
#define  MODEL_ECHO_AUDIOFIRE_12HD	0x0af12d
#define  MODEL_ECHO_AUDIOFIRE_12_APPLE	0x0af12a
/* This is applied for AudioFire8 (until 2009 July) */
#define  MODEL_ECHO_AUDIOFIRE_8		0x000af8
#define  MODEL_ECHO_AUDIOFIRE_2		0x000af2
#define  MODEL_ECHO_AUDIOFIRE_4		0x000af4
/* AudioFire9 is applied for AudioFire8(since 2009 July) and AudioFirePre8 */
#define  MODEL_ECHO_AUDIOFIRE_9		0x000af9
/* unknown as product */
#define  MODEL_ECHO_FIREWORKS_8		0x0000f8
#define  MODEL_ECHO_FIREWORKS_HDMI	0x00afd1

#define VENDOR_GIBSON			0x00075b
/* for Robot Interface Pack of Dark Fire, Dusk Tiger, Les Paul Standard 2010 */
#define  MODEL_GIBSON_RIP		0x00afb2
/* unknown as product */
#define  MODEL_GIBSON_GOLDTOP		0x00afb9

/* part of hardware capability flags */
#define FLAG_RESP_ADDR_CHANGABLE	0

static int
get_hardware_info(struct snd_efw *efw)
{
	struct fw_device *fw_dev = fw_parent_device(efw->unit);
	struct snd_efw_hwinfo *hwinfo;
	char version[12] = {0};
	int err;

	hwinfo = kzalloc(sizeof(struct snd_efw_hwinfo), GFP_KERNEL);
	if (hwinfo == NULL)
		return -ENOMEM;

	err = snd_efw_command_get_hwinfo(efw, hwinfo);
	if (err < 0)
		goto end;

	/* firmware version for communication chipset */
	snprintf(version, sizeof(version), "%u.%u",
		 (hwinfo->arm_version >> 24) & 0xff,
		 (hwinfo->arm_version >> 16) & 0xff);
	efw->firmware_version = hwinfo->arm_version;

	strcpy(efw->card->driver, "Fireworks");
	strcpy(efw->card->shortname, hwinfo->model_name);
	strcpy(efw->card->mixername, hwinfo->model_name);
	snprintf(efw->card->longname, sizeof(efw->card->longname),
		 "%s %s v%s, GUID %08x%08x at %s, S%d",
		 hwinfo->vendor_name, hwinfo->model_name, version,
		 hwinfo->guid_hi, hwinfo->guid_lo,
		 dev_name(&efw->unit->device), 100 << fw_dev->max_speed);

	if (hwinfo->flags & BIT(FLAG_RESP_ADDR_CHANGABLE))
		efw->resp_addr_changable = true;

	efw->supported_sampling_rate = 0;
	if ((hwinfo->min_sample_rate <= 22050)
	 && (22050 <= hwinfo->max_sample_rate))
		efw->supported_sampling_rate |= SNDRV_PCM_RATE_22050;
	if ((hwinfo->min_sample_rate <= 32000)
	 && (32000 <= hwinfo->max_sample_rate))
		efw->supported_sampling_rate |= SNDRV_PCM_RATE_32000;
	if ((hwinfo->min_sample_rate <= 44100)
	 && (44100 <= hwinfo->max_sample_rate))
		efw->supported_sampling_rate |= SNDRV_PCM_RATE_44100;
	if ((hwinfo->min_sample_rate <= 48000)
	 && (48000 <= hwinfo->max_sample_rate))
		efw->supported_sampling_rate |= SNDRV_PCM_RATE_48000;
	if ((hwinfo->min_sample_rate <= 88200)
	 && (88200 <= hwinfo->max_sample_rate))
		efw->supported_sampling_rate |= SNDRV_PCM_RATE_88200;
	if ((hwinfo->min_sample_rate <= 96000)
	 && (96000 <= hwinfo->max_sample_rate))
		efw->supported_sampling_rate |= SNDRV_PCM_RATE_96000;
	if ((hwinfo->min_sample_rate <= 176400)
	 && (176400 <= hwinfo->max_sample_rate))
		efw->supported_sampling_rate |= SNDRV_PCM_RATE_176400;
	if ((hwinfo->min_sample_rate <= 192000)
	 && (192000 <= hwinfo->max_sample_rate))
		efw->supported_sampling_rate |= SNDRV_PCM_RATE_192000;

	/* the number of MIDI ports, not of MIDI conformant data channels */
	if (hwinfo->midi_out_ports > SND_EFW_MAX_MIDI_OUT_PORTS ||
	    hwinfo->midi_in_ports > SND_EFW_MAX_MIDI_IN_PORTS) {
		err = -EIO;
		goto end;
	}
	efw->midi_out_ports = hwinfo->midi_out_ports;
	efw->midi_in_ports = hwinfo->midi_in_ports;

	if (hwinfo->amdtp_tx_pcm_channels    > AM824_MAX_CHANNELS_FOR_PCM ||
	    hwinfo->amdtp_tx_pcm_channels_2x > AM824_MAX_CHANNELS_FOR_PCM ||
	    hwinfo->amdtp_tx_pcm_channels_4x > AM824_MAX_CHANNELS_FOR_PCM ||
	    hwinfo->amdtp_rx_pcm_channels    > AM824_MAX_CHANNELS_FOR_PCM ||
	    hwinfo->amdtp_rx_pcm_channels_2x > AM824_MAX_CHANNELS_FOR_PCM ||
	    hwinfo->amdtp_rx_pcm_channels_4x > AM824_MAX_CHANNELS_FOR_PCM) {
		err = -ENOSYS;
		goto end;
	}
	efw->pcm_capture_channels[0] = hwinfo->amdtp_tx_pcm_channels;
	efw->pcm_capture_channels[1] = hwinfo->amdtp_tx_pcm_channels_2x;
	efw->pcm_capture_channels[2] = hwinfo->amdtp_tx_pcm_channels_4x;
	efw->pcm_playback_channels[0] = hwinfo->amdtp_rx_pcm_channels;
	efw->pcm_playback_channels[1] = hwinfo->amdtp_rx_pcm_channels_2x;
	efw->pcm_playback_channels[2] = hwinfo->amdtp_rx_pcm_channels_4x;

	/* Hardware metering. */
	if (hwinfo->phys_in_grp_count  > HWINFO_MAX_CAPS_GROUPS ||
	    hwinfo->phys_out_grp_count > HWINFO_MAX_CAPS_GROUPS) {
		err = -EIO;
		goto end;
	}
	efw->phys_in = hwinfo->phys_in;
	efw->phys_out = hwinfo->phys_out;
	efw->phys_in_grp_count = hwinfo->phys_in_grp_count;
	efw->phys_out_grp_count = hwinfo->phys_out_grp_count;
	memcpy(&efw->phys_in_grps, hwinfo->phys_in_grps,
	       sizeof(struct snd_efw_phys_grp) * hwinfo->phys_in_grp_count);
	memcpy(&efw->phys_out_grps, hwinfo->phys_out_grps,
	       sizeof(struct snd_efw_phys_grp) * hwinfo->phys_out_grp_count);

	/* AudioFire8 (since 2009) and AudioFirePre8 */
	if (hwinfo->type == MODEL_ECHO_AUDIOFIRE_9)
		efw->is_af9 = true;
	/* These models uses the same firmware. */
	if (hwinfo->type == MODEL_ECHO_AUDIOFIRE_2 ||
	    hwinfo->type == MODEL_ECHO_AUDIOFIRE_4 ||
	    hwinfo->type == MODEL_ECHO_AUDIOFIRE_9 ||
	    hwinfo->type == MODEL_GIBSON_RIP ||
	    hwinfo->type == MODEL_GIBSON_GOLDTOP)
		efw->is_fireworks3 = true;
end:
	kfree(hwinfo);
	return err;
}

static void
efw_card_free(struct snd_card *card)
{
	struct snd_efw *efw = card->private_data;

	mutex_lock(&devices_mutex);
	clear_bit(efw->card_index, devices_used);
	mutex_unlock(&devices_mutex);

	snd_efw_stream_destroy_duplex(efw);
	snd_efw_transaction_remove_instance(efw);
}

static void
do_registration(struct work_struct *work)
{
	struct snd_efw *efw = container_of(work, struct snd_efw, dwork.work);
	unsigned int card_index;
	int err;

	if (efw->registered)
		return;

	/* check registered cards */
	mutex_lock(&devices_mutex);
	for (card_index = 0; card_index < SNDRV_CARDS; ++card_index) {
		if (!test_bit(card_index, devices_used) && enable[card_index])
			break;
	}
	if (card_index >= SNDRV_CARDS) {
		mutex_unlock(&devices_mutex);
		return;
	}

	err = snd_card_new(&efw->unit->device, index[card_index],
			   id[card_index], THIS_MODULE, 0, &efw->card);
	if (err < 0) {
		mutex_unlock(&devices_mutex);
		return;
	}
	set_bit(card_index, devices_used);
	mutex_unlock(&devices_mutex);

	efw->card->private_free = efw_card_free;
	efw->card->private_data = efw;

	/* prepare response buffer */
	snd_efw_resp_buf_size = clamp(snd_efw_resp_buf_size,
				      SND_EFW_RESPONSE_MAXIMUM_BYTES, 4096U);
	efw->resp_buf = devm_kzalloc(&efw->card->card_dev,
				     snd_efw_resp_buf_size, GFP_KERNEL);
	if (!efw->resp_buf) {
		err = -ENOMEM;
		goto error;
	}
	efw->pull_ptr = efw->push_ptr = efw->resp_buf;
	snd_efw_transaction_add_instance(efw);

	err = get_hardware_info(efw);
	if (err < 0)
		goto error;

	err = snd_efw_stream_init_duplex(efw);
	if (err < 0)
		goto error;

	snd_efw_proc_init(efw);

	if (efw->midi_out_ports || efw->midi_in_ports) {
		err = snd_efw_create_midi_devices(efw);
		if (err < 0)
			goto error;
	}

	err = snd_efw_create_pcm_devices(efw);
	if (err < 0)
		goto error;

	err = snd_efw_create_hwdep_device(efw);
	if (err < 0)
		goto error;

	err = snd_card_register(efw->card);
	if (err < 0)
		goto error;

	efw->registered = true;

	return;
error:
	snd_card_free(efw->card);
	dev_info(&efw->unit->device,
		 "Sound card registration failed: %d\n", err);
}

static int
efw_probe(struct fw_unit *unit, const struct ieee1394_device_id *entry)
{
	struct snd_efw *efw;

	efw = devm_kzalloc(&unit->device, sizeof(struct snd_efw), GFP_KERNEL);
	if (efw == NULL)
		return -ENOMEM;
	efw->unit = fw_unit_get(unit);
	dev_set_drvdata(&unit->device, efw);

	mutex_init(&efw->mutex);
	spin_lock_init(&efw->lock);
	init_waitqueue_head(&efw->hwdep_wait);

	/* Allocate and register this sound card later. */
	INIT_DEFERRABLE_WORK(&efw->dwork, do_registration);
	snd_fw_schedule_registration(unit, &efw->dwork);

	return 0;
}

static void efw_update(struct fw_unit *unit)
{
	struct snd_efw *efw = dev_get_drvdata(&unit->device);

	/* Postpone a workqueue for deferred registration. */
	if (!efw->registered)
		snd_fw_schedule_registration(unit, &efw->dwork);

	snd_efw_transaction_bus_reset(efw->unit);

	/*
	 * After registration, userspace can start packet streaming, then this
	 * code block works fine.
	 */
	if (efw->registered) {
		mutex_lock(&efw->mutex);
		snd_efw_stream_update_duplex(efw);
		mutex_unlock(&efw->mutex);
	}
}

static void efw_remove(struct fw_unit *unit)
{
	struct snd_efw *efw = dev_get_drvdata(&unit->device);

	/*
	 * Confirm to stop the work for registration before the sound card is
	 * going to be released. The work is not scheduled again because bus
	 * reset handler is not called anymore.
	 */
	cancel_delayed_work_sync(&efw->dwork);

	if (efw->registered) {
		// Block till all of ALSA character devices are released.
		snd_card_free(efw->card);
	}

	mutex_destroy(&efw->mutex);
	fw_unit_put(efw->unit);
}

static const struct ieee1394_device_id efw_id_table[] = {
	SND_EFW_DEV_ENTRY(VENDOR_LOUD, MODEL_MACKIE_400F),
	SND_EFW_DEV_ENTRY(VENDOR_LOUD, MODEL_MACKIE_1200F),
	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_8),
	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_12),
	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_12HD),
	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_12_APPLE),
	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_2),
	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_4),
	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_9),
	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_FIREWORKS_8),
	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_FIREWORKS_HDMI),
	SND_EFW_DEV_ENTRY(VENDOR_GIBSON, MODEL_GIBSON_RIP),
	SND_EFW_DEV_ENTRY(VENDOR_GIBSON, MODEL_GIBSON_GOLDTOP),
	{}
};
MODULE_DEVICE_TABLE(ieee1394, efw_id_table);

static struct fw_driver efw_driver = {
	.driver = {
		.owner = THIS_MODULE,
		.name = "snd-fireworks",
		.bus = &fw_bus_type,
	},
	.probe    = efw_probe,
	.update   = efw_update,
	.remove   = efw_remove,
	.id_table = efw_id_table,
};

static int __init snd_efw_init(void)
{
	int err;

	err = snd_efw_transaction_register();
	if (err < 0)
		goto end;

	err = driver_register(&efw_driver.driver);
	if (err < 0)
		snd_efw_transaction_unregister();

end:
	return err;
}

static void __exit snd_efw_exit(void)
{
	snd_efw_transaction_unregister();
	driver_unregister(&efw_driver.driver);
}

module_init(snd_efw_init);
module_exit(snd_efw_exit);
Commit	Line	Data
da607e19	1	// SPDX-License-Identifier: GPL-2.0-only
b5b04336 TS	2	/*
	3	* fireworks.c - a part of driver for Fireworks based devices
	4	*
	5	* Copyright (c) 2009-2010 Clemens Ladisch
	6	* Copyright (c) 2013-2014 Takashi Sakamoto
b5b04336 TS	7	*/
	8
	9	/*
	10	* Fireworks is a board module which Echo Audio produced. This module consists
	11	* of three chipsets:
	12	* - Communication chipset for IEEE1394 PHY/Link and IEC 61883-1/6
	13	* - DSP or/and FPGA for signal processing
	14	* - Flash Memory to store firmwares
	15	*/
	16
	17	#include "fireworks.h"
	18
	19	MODULE_DESCRIPTION("Echo Fireworks driver");
	20	MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
	21	MODULE_LICENSE("GPL v2");
	22
	23	static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
	24	static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
	25	static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
555e8a8f TS	26	unsigned int snd_efw_resp_buf_size = 1024;
555e8a8f TS	27	bool snd_efw_resp_buf_debug = false;
b5b04336 TS	28
	29	module_param_array(index, int, NULL, 0444);
	30	MODULE_PARM_DESC(index, "card index");
	31	module_param_array(id, charp, NULL, 0444);
	32	MODULE_PARM_DESC(id, "ID string");
	33	module_param_array(enable, bool, NULL, 0444);
	34	MODULE_PARM_DESC(enable, "enable Fireworks sound card");
555e8a8f TS	35	module_param_named(resp_buf_size, snd_efw_resp_buf_size, uint, 0444);
	36	MODULE_PARM_DESC(resp_buf_size,
	37	"response buffer size (max 4096, default 1024)");
	38	module_param_named(resp_buf_debug, snd_efw_resp_buf_debug, bool, 0444);
	39	MODULE_PARM_DESC(resp_buf_debug, "store all responses to buffer");
b5b04336 TS	40
	41	static DEFINE_MUTEX(devices_mutex);
	42	static DECLARE_BITMAP(devices_used, SNDRV_CARDS);
	43
	44	#define VENDOR_LOUD 0x000ff2
	45	#define MODEL_MACKIE_400F 0x00400f
	46	#define MODEL_MACKIE_1200F 0x01200f
	47
	48	#define VENDOR_ECHO 0x001486
	49	#define MODEL_ECHO_AUDIOFIRE_12 0x00af12
	50	#define MODEL_ECHO_AUDIOFIRE_12HD 0x0af12d
	51	#define MODEL_ECHO_AUDIOFIRE_12_APPLE 0x0af12a
	52	/* This is applied for AudioFire8 (until 2009 July) */
	53	#define MODEL_ECHO_AUDIOFIRE_8 0x000af8
	54	#define MODEL_ECHO_AUDIOFIRE_2 0x000af2
	55	#define MODEL_ECHO_AUDIOFIRE_4 0x000af4
	56	/* AudioFire9 is applied for AudioFire8(since 2009 July) and AudioFirePre8 */
	57	#define MODEL_ECHO_AUDIOFIRE_9 0x000af9
	58	/* unknown as product */
	59	#define MODEL_ECHO_FIREWORKS_8 0x0000f8
	60	#define MODEL_ECHO_FIREWORKS_HDMI 0x00afd1
	61
	62	#define VENDOR_GIBSON 0x00075b
	63	/* for Robot Interface Pack of Dark Fire, Dusk Tiger, Les Paul Standard 2010 */
	64	#define MODEL_GIBSON_RIP 0x00afb2
	65	/* unknown as product */
	66	#define MODEL_GIBSON_GOLDTOP 0x00afb9
	67
bde8a8f2 TS	68	/* part of hardware capability flags */
	69	#define FLAG_RESP_ADDR_CHANGABLE 0
	70
	71	static int
	72	get_hardware_info(struct snd_efw *efw)
	73	{
	74	struct fw_device *fw_dev = fw_parent_device(efw->unit);
	75	struct snd_efw_hwinfo *hwinfo;
	76	char version[12] = {0};
	77	int err;
	78
	79	hwinfo = kzalloc(sizeof(struct snd_efw_hwinfo), GFP_KERNEL);
	80	if (hwinfo == NULL)
	81	return -ENOMEM;
	82
	83	err = snd_efw_command_get_hwinfo(efw, hwinfo);
	84	if (err < 0)
	85	goto end;
	86
	87	/* firmware version for communication chipset */
	88	snprintf(version, sizeof(version), "%u.%u",
	89	(hwinfo->arm_version >> 24) & 0xff,
	90	(hwinfo->arm_version >> 16) & 0xff);
d9cd0065	91	efw->firmware_version = hwinfo->arm_version;
bde8a8f2 TS	92
	93	strcpy(efw->card->driver, "Fireworks");
	94	strcpy(efw->card->shortname, hwinfo->model_name);
	95	strcpy(efw->card->mixername, hwinfo->model_name);
	96	snprintf(efw->card->longname, sizeof(efw->card->longname),
	97	"%s %s v%s, GUID %08x%08x at %s, S%d",
	98	hwinfo->vendor_name, hwinfo->model_name, version,
	99	hwinfo->guid_hi, hwinfo->guid_lo,
	100	dev_name(&efw->unit->device), 100 << fw_dev->max_speed);
bde8a8f2 TS	101
	102	if (hwinfo->flags & BIT(FLAG_RESP_ADDR_CHANGABLE))
	103	efw->resp_addr_changable = true;
315fd41f TS	104
	105	efw->supported_sampling_rate = 0;
	106	if ((hwinfo->min_sample_rate <= 22050)
	107	&& (22050 <= hwinfo->max_sample_rate))
	108	efw->supported_sampling_rate \|= SNDRV_PCM_RATE_22050;
	109	if ((hwinfo->min_sample_rate <= 32000)
	110	&& (32000 <= hwinfo->max_sample_rate))
	111	efw->supported_sampling_rate \|= SNDRV_PCM_RATE_32000;
	112	if ((hwinfo->min_sample_rate <= 44100)
	113	&& (44100 <= hwinfo->max_sample_rate))
	114	efw->supported_sampling_rate \|= SNDRV_PCM_RATE_44100;
	115	if ((hwinfo->min_sample_rate <= 48000)
	116	&& (48000 <= hwinfo->max_sample_rate))
	117	efw->supported_sampling_rate \|= SNDRV_PCM_RATE_48000;
	118	if ((hwinfo->min_sample_rate <= 88200)
	119	&& (88200 <= hwinfo->max_sample_rate))
	120	efw->supported_sampling_rate \|= SNDRV_PCM_RATE_88200;
	121	if ((hwinfo->min_sample_rate <= 96000)
	122	&& (96000 <= hwinfo->max_sample_rate))
	123	efw->supported_sampling_rate \|= SNDRV_PCM_RATE_96000;
	124	if ((hwinfo->min_sample_rate <= 176400)
	125	&& (176400 <= hwinfo->max_sample_rate))
	126	efw->supported_sampling_rate \|= SNDRV_PCM_RATE_176400;
	127	if ((hwinfo->min_sample_rate <= 192000)
	128	&& (192000 <= hwinfo->max_sample_rate))
	129	efw->supported_sampling_rate \|= SNDRV_PCM_RATE_192000;
	130
	131	/* the number of MIDI ports, not of MIDI conformant data channels */
	132	if (hwinfo->midi_out_ports > SND_EFW_MAX_MIDI_OUT_PORTS \|\|
	133	hwinfo->midi_in_ports > SND_EFW_MAX_MIDI_IN_PORTS) {
	134	err = -EIO;
	135	goto end;
	136	}
	137	efw->midi_out_ports = hwinfo->midi_out_ports;
	138	efw->midi_in_ports = hwinfo->midi_in_ports;
	139
49c7b3fc TS	140	if (hwinfo->amdtp_tx_pcm_channels > AM824_MAX_CHANNELS_FOR_PCM \|\|
	141	hwinfo->amdtp_tx_pcm_channels_2x > AM824_MAX_CHANNELS_FOR_PCM \|\|
	142	hwinfo->amdtp_tx_pcm_channels_4x > AM824_MAX_CHANNELS_FOR_PCM \|\|
	143	hwinfo->amdtp_rx_pcm_channels > AM824_MAX_CHANNELS_FOR_PCM \|\|
	144	hwinfo->amdtp_rx_pcm_channels_2x > AM824_MAX_CHANNELS_FOR_PCM \|\|
	145	hwinfo->amdtp_rx_pcm_channels_4x > AM824_MAX_CHANNELS_FOR_PCM) {
315fd41f TS	146	err = -ENOSYS;
	147	goto end;
	148	}
	149	efw->pcm_capture_channels[0] = hwinfo->amdtp_tx_pcm_channels;
	150	efw->pcm_capture_channels[1] = hwinfo->amdtp_tx_pcm_channels_2x;
	151	efw->pcm_capture_channels[2] = hwinfo->amdtp_tx_pcm_channels_4x;
	152	efw->pcm_playback_channels[0] = hwinfo->amdtp_rx_pcm_channels;
	153	efw->pcm_playback_channels[1] = hwinfo->amdtp_rx_pcm_channels_2x;
	154	efw->pcm_playback_channels[2] = hwinfo->amdtp_rx_pcm_channels_4x;
6a22683e TS	155
	156	/* Hardware metering. */
	157	if (hwinfo->phys_in_grp_count > HWINFO_MAX_CAPS_GROUPS \|\|
	158	hwinfo->phys_out_grp_count > HWINFO_MAX_CAPS_GROUPS) {
39617837	159	err = -EIO;
6a22683e TS	160	goto end;
	161	}
	162	efw->phys_in = hwinfo->phys_in;
	163	efw->phys_out = hwinfo->phys_out;
	164	efw->phys_in_grp_count = hwinfo->phys_in_grp_count;
	165	efw->phys_out_grp_count = hwinfo->phys_out_grp_count;
	166	memcpy(&efw->phys_in_grps, hwinfo->phys_in_grps,
	167	sizeof(struct snd_efw_phys_grp) * hwinfo->phys_in_grp_count);
	168	memcpy(&efw->phys_out_grps, hwinfo->phys_out_grps,
	169	sizeof(struct snd_efw_phys_grp) * hwinfo->phys_out_grp_count);
0655ac2f TS	170
	171	/* AudioFire8 (since 2009) and AudioFirePre8 */
	172	if (hwinfo->type == MODEL_ECHO_AUDIOFIRE_9)
	173	efw->is_af9 = true;
	174	/* These models uses the same firmware. */
	175	if (hwinfo->type == MODEL_ECHO_AUDIOFIRE_2 \|\|
	176	hwinfo->type == MODEL_ECHO_AUDIOFIRE_4 \|\|
	177	hwinfo->type == MODEL_ECHO_AUDIOFIRE_9 \|\|
	178	hwinfo->type == MODEL_GIBSON_RIP \|\|
	179	hwinfo->type == MODEL_GIBSON_GOLDTOP)
	180	efw->is_fireworks3 = true;
bde8a8f2 TS	181	end:
	182	kfree(hwinfo);
	183	return err;
	184	}
	185
3babca45 TS	186	static void
3babca45 TS	187	efw_card_free(struct snd_card *card)
7d3c1d59	188	{
3babca45 TS	189	struct snd_efw *efw = card->private_data;
3babca45 TS	190
873608dc TS	191	mutex_lock(&devices_mutex);
	192	clear_bit(efw->card_index, devices_used);
	193	mutex_unlock(&devices_mutex);
	194
7d3c1d59 TS	195	snd_efw_stream_destroy_duplex(efw);
7d3c1d59 TS	196	snd_efw_transaction_remove_instance(efw);
7d3c1d59 TS	197	}
7d3c1d59 TS	198
7d3c1d59 TS	199	static void
7d3c1d59 TS	200	do_registration(struct work_struct *work)
b5b04336	201	{
7d3c1d59 TS	202	struct snd_efw *efw = container_of(work, struct snd_efw, dwork.work);
	203	unsigned int card_index;
	204	int err;
	205
	206	if (efw->registered)
	207	return;
b5b04336	208
b5b04336	209	/* check registered cards */
873608dc	210	mutex_lock(&devices_mutex);
b5b04336 TS	211	for (card_index = 0; card_index < SNDRV_CARDS; ++card_index) {
	212	if (!test_bit(card_index, devices_used) && enable[card_index])
	213	break;
	214	}
	215	if (card_index >= SNDRV_CARDS) {
7d3c1d59 TS	216	mutex_unlock(&devices_mutex);
7d3c1d59 TS	217	return;
b5b04336 TS	218	}
b5b04336 TS	219
7d3c1d59 TS	220	err = snd_card_new(&efw->unit->device, index[card_index],
	221	id[card_index], THIS_MODULE, 0, &efw->card);
	222	if (err < 0) {
	223	mutex_unlock(&devices_mutex);
	224	return;
	225	}
873608dc TS	226	set_bit(card_index, devices_used);
873608dc TS	227	mutex_unlock(&devices_mutex);
b5b04336	228
3babca45 TS	229	efw->card->private_free = efw_card_free;
	230	efw->card->private_data = efw;
	231
555e8a8f TS	232	/* prepare response buffer */
	233	snd_efw_resp_buf_size = clamp(snd_efw_resp_buf_size,
	234	SND_EFW_RESPONSE_MAXIMUM_BYTES, 4096U);
784fffbc TS	235	efw->resp_buf = devm_kzalloc(&efw->card->card_dev,
	236	snd_efw_resp_buf_size, GFP_KERNEL);
	237	if (!efw->resp_buf) {
555e8a8f TS	238	err = -ENOMEM;
	239	goto error;
	240	}
	241	efw->pull_ptr = efw->push_ptr = efw->resp_buf;
	242	snd_efw_transaction_add_instance(efw);
	243
bde8a8f2 TS	244	err = get_hardware_info(efw);
	245	if (err < 0)
	246	goto error;
b5b04336	247
7d3c1d59 TS	248	err = snd_efw_stream_init_duplex(efw);
	249	if (err < 0)
	250	goto error;
	251
6a22683e TS	252	snd_efw_proc_init(efw);
6a22683e TS	253
a63d3ff1 TS	254	if (efw->midi_out_ports \|\| efw->midi_in_ports) {
	255	err = snd_efw_create_midi_devices(efw);
	256	if (err < 0)
	257	goto error;
	258	}
	259
aa02bb6e TS	260	err = snd_efw_create_pcm_devices(efw);
	261	if (err < 0)
	262	goto error;
	263
594ddced TS	264	err = snd_efw_create_hwdep_device(efw);
	265	if (err < 0)
	266	goto error;
	267
7d3c1d59	268	err = snd_card_register(efw->card);
b5b04336 TS	269	if (err < 0)
b5b04336 TS	270	goto error;
bde8a8f2	271
7d3c1d59 TS	272	efw->registered = true;
	273
	274	return;
b5b04336	275	error:
7d3c1d59 TS	276	snd_card_free(efw->card);
	277	dev_info(&efw->unit->device,
	278	"Sound card registration failed: %d\n", err);
	279	}
	280
	281	static int
	282	efw_probe(struct fw_unit unit, const struct ieee1394_device_id entry)
	283	{
	284	struct snd_efw *efw;
	285
366a20d7	286	efw = devm_kzalloc(&unit->device, sizeof(struct snd_efw), GFP_KERNEL);
7d3c1d59 TS	287	if (efw == NULL)
7d3c1d59 TS	288	return -ENOMEM;
7d3c1d59 TS	289	efw->unit = fw_unit_get(unit);
	290	dev_set_drvdata(&unit->device, efw);
	291
	292	mutex_init(&efw->mutex);
	293	spin_lock_init(&efw->lock);
	294	init_waitqueue_head(&efw->hwdep_wait);
	295
	296	/* Allocate and register this sound card later. */
	297	INIT_DEFERRABLE_WORK(&efw->dwork, do_registration);
	298	snd_fw_schedule_registration(unit, &efw->dwork);
	299
	300	return 0;
b5b04336 TS	301	}
	302
	303	static void efw_update(struct fw_unit *unit)
	304	{
bde8a8f2	305	struct snd_efw *efw = dev_get_drvdata(&unit->device);
315fd41f	306
7d3c1d59 TS	307	/* Postpone a workqueue for deferred registration. */
	308	if (!efw->registered)
	309	snd_fw_schedule_registration(unit, &efw->dwork);
	310
bde8a8f2	311	snd_efw_transaction_bus_reset(efw->unit);
99d73559	312
7d3c1d59 TS	313	/*
	314	* After registration, userspace can start packet streaming, then this
	315	* code block works fine.
	316	*/
	317	if (efw->registered) {
	318	mutex_lock(&efw->mutex);
	319	snd_efw_stream_update_duplex(efw);
	320	mutex_unlock(&efw->mutex);
	321	}
b5b04336 TS	322	}
	323
	324	static void efw_remove(struct fw_unit *unit)
	325	{
	326	struct snd_efw *efw = dev_get_drvdata(&unit->device);
315fd41f	327
7d3c1d59 TS	328	/*
	329	* Confirm to stop the work for registration before the sound card is
	330	* going to be released. The work is not scheduled again because bus
	331	* reset handler is not called anymore.
	332	*/
	333	cancel_delayed_work_sync(&efw->dwork);
	334
	335	if (efw->registered) {
61ccc6f6 TS	336	// Block till all of ALSA character devices are released.
61ccc6f6 TS	337	snd_card_free(efw->card);
7d3c1d59	338	}
5b14ec25 TS	339
	340	mutex_destroy(&efw->mutex);
	341	fw_unit_put(efw->unit);
b5b04336 TS	342	}
	343
	344	static const struct ieee1394_device_id efw_id_table[] = {
	345	SND_EFW_DEV_ENTRY(VENDOR_LOUD, MODEL_MACKIE_400F),
	346	SND_EFW_DEV_ENTRY(VENDOR_LOUD, MODEL_MACKIE_1200F),
	347	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_8),
	348	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_12),
	349	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_12HD),
	350	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_12_APPLE),
	351	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_2),
	352	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_4),
	353	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_9),
	354	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_FIREWORKS_8),
	355	SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_FIREWORKS_HDMI),
	356	SND_EFW_DEV_ENTRY(VENDOR_GIBSON, MODEL_GIBSON_RIP),
	357	SND_EFW_DEV_ENTRY(VENDOR_GIBSON, MODEL_GIBSON_GOLDTOP),
	358	{}
	359	};
	360	MODULE_DEVICE_TABLE(ieee1394, efw_id_table);
	361
	362	static struct fw_driver efw_driver = {
	363	.driver = {
	364	.owner = THIS_MODULE,
	365	.name = "snd-fireworks",
	366	.bus = &fw_bus_type,
	367	},
	368	.probe = efw_probe,
	369	.update = efw_update,
	370	.remove = efw_remove,
	371	.id_table = efw_id_table,
	372	};
	373
	374	static int __init snd_efw_init(void)
	375	{
bde8a8f2 TS	376	int err;
	377
	378	err = snd_efw_transaction_register();
	379	if (err < 0)
	380	goto end;
	381
	382	err = driver_register(&efw_driver.driver);
	383	if (err < 0)
	384	snd_efw_transaction_unregister();
	385
	386	end:
	387	return err;
b5b04336 TS	388	}
	389
	390	static void __exit snd_efw_exit(void)
	391	{
bde8a8f2	392	snd_efw_transaction_unregister();
b5b04336	393	driver_unregister(&efw_driver.driver);
b5b04336 TS	394	}
	395
	396	module_init(snd_efw_init);
	397	module_exit(snd_efw_exit);