[mirror_ubuntu-zesty-kernel.git] / sound / usb / caiaq / caiaq-device.c

/*
 * caiaq.c: ALSA driver for caiaq/NativeInstruments devices
 *
 *   Copyright (c) 2007 Daniel Mack <daniel@caiaq.de>
 *                      Karsten Wiese <fzu@wemgehoertderstaat.de>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
*/

#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/usb.h>
#include <linux/input.h>
#include <linux/spinlock.h>
#include <sound/driver.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/rawmidi.h>
#include <sound/control.h>

#include "caiaq-device.h"
#include "caiaq-audio.h"
#include "caiaq-midi.h"
#include "caiaq-control.h"

#ifdef CONFIG_SND_USB_CAIAQ_INPUT
#include "caiaq-input.h"
#endif

MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
MODULE_DESCRIPTION("caiaq USB audio, version 1.3.1");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
			 "{Native Instruments, RigKontrol3},"
			 "{Native Instruments, Kore Controller},"
			 "{Native Instruments, Kore Controller 2},"
			 "{Native Instruments, Audio Kontrol 1}"
			 "{Native Instruments, Audio 8 DJ}}");

static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
static int snd_card_used[SNDRV_CARDS];

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for the caiaq sound device");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for the caiaq soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable the caiaq soundcard.");

enum {
	SAMPLERATE_44100	= 0,
	SAMPLERATE_48000	= 1,
	SAMPLERATE_96000	= 2,
	SAMPLERATE_192000	= 3,
	SAMPLERATE_88200	= 4,
	SAMPLERATE_INVALID	= 0xff
};

enum {
	DEPTH_NONE	= 0,
	DEPTH_16	= 1,
	DEPTH_24	= 2,
	DEPTH_32	= 3
};

static struct usb_device_id snd_usb_id_table[] = {
	{
		.match_flags =	USB_DEVICE_ID_MATCH_DEVICE,
		.idVendor =	USB_VID_NATIVEINSTRUMENTS,
		.idProduct =	USB_PID_RIGKONTROL2 
	},
	{
		.match_flags =	USB_DEVICE_ID_MATCH_DEVICE,
		.idVendor =	USB_VID_NATIVEINSTRUMENTS,
		.idProduct =	USB_PID_RIGKONTROL3
	},
	{
		.match_flags =	USB_DEVICE_ID_MATCH_DEVICE,
		.idVendor =	USB_VID_NATIVEINSTRUMENTS,
		.idProduct =	USB_PID_KORECONTROLLER
	},
	{
		.match_flags =	USB_DEVICE_ID_MATCH_DEVICE,
		.idVendor =	USB_VID_NATIVEINSTRUMENTS,
		.idProduct =	USB_PID_KORECONTROLLER2
	},
	{
		.match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
		.idVendor =     USB_VID_NATIVEINSTRUMENTS,
		.idProduct =    USB_PID_AK1
	},
	{
		.match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
		.idVendor =     USB_VID_NATIVEINSTRUMENTS,
		.idProduct =    USB_PID_AUDIO8DJ
	},
	{ /* terminator */ }
};

static void usb_ep1_command_reply_dispatch (struct urb* urb)
{
	int ret;
	struct snd_usb_caiaqdev *dev = urb->context;
	unsigned char *buf = urb->transfer_buffer;

	if (urb->status || !dev) {
		log("received EP1 urb->status = %i\n", urb->status);
		return;
	}

	switch(buf[0]) {
	case EP1_CMD_GET_DEVICE_INFO:
	 	memcpy(&dev->spec, buf+1, sizeof(struct caiaq_device_spec));
		dev->spec.fw_version = le16_to_cpu(dev->spec.fw_version);
		debug("device spec (firmware %d): audio: %d in, %d out, "
			"MIDI: %d in, %d out, data alignment %d\n",
			dev->spec.fw_version,
			dev->spec.num_analog_audio_in,
			dev->spec.num_analog_audio_out,
			dev->spec.num_midi_in,
			dev->spec.num_midi_out,
			dev->spec.data_alignment);

		dev->spec_received++;
		wake_up(&dev->ep1_wait_queue);
		break;
	case EP1_CMD_AUDIO_PARAMS:
		dev->audio_parm_answer = buf[1];
		wake_up(&dev->ep1_wait_queue);
		break;
	case EP1_CMD_MIDI_READ:
		snd_usb_caiaq_midi_handle_input(dev, buf[1], buf + 3, buf[2]);
		break;
	case EP1_CMD_READ_IO:
		if (dev->chip.usb_id ==
			USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ)) {
			if (urb->actual_length > sizeof(dev->control_state))
				urb->actual_length = sizeof(dev->control_state);
			memcpy(dev->control_state, buf + 1, urb->actual_length);
			wake_up(&dev->ep1_wait_queue);
			break;
		}
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
	case EP1_CMD_READ_ERP:
	case EP1_CMD_READ_ANALOG:
		snd_usb_caiaq_input_dispatch(dev, buf, urb->actual_length);
#endif
		break;
	}

	dev->ep1_in_urb.actual_length = 0;
	ret = usb_submit_urb(&dev->ep1_in_urb, GFP_ATOMIC);
	if (ret < 0)
		log("unable to submit urb. OOM!?\n");
}

int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *dev,
			       unsigned char command,
			       const unsigned char *buffer,
			       int len)
{
	int actual_len;
	struct usb_device *usb_dev = dev->chip.dev;

	if (!usb_dev)
		return -EIO;

	if (len > EP1_BUFSIZE - 1)
		len = EP1_BUFSIZE - 1;

	if (buffer && len > 0)
		memcpy(dev->ep1_out_buf+1, buffer, len);
	
	dev->ep1_out_buf[0] = command;
	return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1),
			   dev->ep1_out_buf, len+1, &actual_len, 200);
}

int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev,
		   		    int rate, int depth, int bpp)
{
	int ret;
	char tmp[5];
	
	switch (rate) {
	case 44100:	tmp[0] = SAMPLERATE_44100;   break;
	case 48000:	tmp[0] = SAMPLERATE_48000;   break;
	case 88200:	tmp[0] = SAMPLERATE_88200;   break;
	case 96000:	tmp[0] = SAMPLERATE_96000;   break;
	case 192000:	tmp[0] = SAMPLERATE_192000;  break;
	default:	return -EINVAL;
	}

	switch (depth) {
	case 16:	tmp[1] = DEPTH_16;   break;
	case 24:	tmp[1] = DEPTH_24;   break;
	default:	return -EINVAL;
	}

	tmp[2] = bpp & 0xff;
	tmp[3] = bpp >> 8;
	tmp[4] = 1; /* packets per microframe */

	debug("setting audio params: %d Hz, %d bits, %d bpp\n",
		rate, depth, bpp);

	dev->audio_parm_answer = -1;
	ret = snd_usb_caiaq_send_command(dev, EP1_CMD_AUDIO_PARAMS,
					 tmp, sizeof(tmp));

	if (ret)
		return ret;
	
	if (!wait_event_timeout(dev->ep1_wait_queue, 
	    dev->audio_parm_answer >= 0, HZ))
		return -EPIPE;
		
	if (dev->audio_parm_answer != 1) 
		debug("unable to set the device's audio params\n");

	return dev->audio_parm_answer == 1 ? 0 : -EINVAL;
}

int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev, 
				int digital, int analog, int erp)
{
	char tmp[3] = { digital, analog, erp };
	return snd_usb_caiaq_send_command(dev, EP1_CMD_AUTO_MSG,
					  tmp, sizeof(tmp));
}

static void setup_card(struct snd_usb_caiaqdev *dev)
{
	int ret;
	char val[4];
	
	/* device-specific startup specials */
	switch (dev->chip.usb_id) {
	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
		/* RigKontrol2 - display centered dash ('-') */
		val[0] = 0x00;
		val[1] = 0x00;
		val[2] = 0x01;
		snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 3);
		break;
	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
		/* RigKontrol2 - display two centered dashes ('--') */
		val[0] = 0x00;
		val[1] = 0x40;
		val[2] = 0x40;
		val[3] = 0x00;
		snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 4);
		break;
	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
		/* Audio Kontrol 1 - make USB-LED stop blinking */
		val[0] = 0x00;
		snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 1);
		break;
	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ):
		/* Audio 8 DJ - trigger read of current settings */
		dev->control_state[0] = 0xff;
		snd_usb_caiaq_set_auto_msg(dev, 1, 0, 0);
		snd_usb_caiaq_send_command(dev, EP1_CMD_READ_IO, NULL, 0);

		if (!wait_event_timeout(dev->ep1_wait_queue,
					dev->control_state[0] != 0xff, HZ))
			return;

		/* fix up some defaults */
		if ((dev->control_state[1] != 2) ||
		    (dev->control_state[2] != 3) ||
		    (dev->control_state[4] != 2)) {
			dev->control_state[1] = 2;
			dev->control_state[2] = 3;
			dev->control_state[4] = 2;
			snd_usb_caiaq_send_command(dev,
				EP1_CMD_WRITE_IO, dev->control_state, 6);
		}

		break;
	}
	
	if (dev->spec.num_analog_audio_out +
	    dev->spec.num_analog_audio_in +
	    dev->spec.num_digital_audio_out +
	    dev->spec.num_digital_audio_in > 0) {
		ret = snd_usb_caiaq_audio_init(dev);
		if (ret < 0)
			log("Unable to set up audio system (ret=%d)\n", ret);
	}
	
	if (dev->spec.num_midi_in +
	    dev->spec.num_midi_out > 0) {
		ret = snd_usb_caiaq_midi_init(dev);
		if (ret < 0)
			log("Unable to set up MIDI system (ret=%d)\n", ret);
	}

#ifdef CONFIG_SND_USB_CAIAQ_INPUT
	ret = snd_usb_caiaq_input_init(dev);
	if (ret < 0)
		log("Unable to set up input system (ret=%d)\n", ret);
#endif

	/* finally, register the card and all its sub-instances */
	ret = snd_card_register(dev->chip.card);
	if (ret < 0) {
		log("snd_card_register() returned %d\n", ret);
		snd_card_free(dev->chip.card);
	}

	ret = snd_usb_caiaq_control_init(dev);
	if (ret < 0)
		log("Unable to set up control system (ret=%d)\n", ret);
}

static struct snd_card* create_card(struct usb_device* usb_dev)
{
	int devnum;
	struct snd_card *card;
	struct snd_usb_caiaqdev *dev;

	for (devnum = 0; devnum < SNDRV_CARDS; devnum++)
		if (enable[devnum] && !snd_card_used[devnum])
			break;

	if (devnum >= SNDRV_CARDS)
		return NULL;

	card = snd_card_new(index[devnum], id[devnum], THIS_MODULE, 
					sizeof(struct snd_usb_caiaqdev));
	if (!card)
		return NULL;

	dev = caiaqdev(card);
	dev->chip.dev = usb_dev;
	dev->chip.card = card;
	dev->chip.usb_id = USB_ID(usb_dev->descriptor.idVendor,
					usb_dev->descriptor.idProduct);
	spin_lock_init(&dev->spinlock);
	snd_card_set_dev(card, &usb_dev->dev);

	return card;
}

static int init_card(struct snd_usb_caiaqdev *dev)
{
	char *c;
	struct usb_device *usb_dev = dev->chip.dev;
	struct snd_card *card = dev->chip.card;
	int err, len;
	
	if (usb_set_interface(usb_dev, 0, 1) != 0) {
		log("can't set alt interface.\n");
		return -EIO;
	}

	usb_init_urb(&dev->ep1_in_urb);
	usb_init_urb(&dev->midi_out_urb);

	usb_fill_bulk_urb(&dev->ep1_in_urb, usb_dev, 
			  usb_rcvbulkpipe(usb_dev, 0x1),
			  dev->ep1_in_buf, EP1_BUFSIZE, 
			  usb_ep1_command_reply_dispatch, dev);

	usb_fill_bulk_urb(&dev->midi_out_urb, usb_dev, 
			  usb_sndbulkpipe(usb_dev, 0x1),
			  dev->midi_out_buf, EP1_BUFSIZE, 
			  snd_usb_caiaq_midi_output_done, dev);
	
	init_waitqueue_head(&dev->ep1_wait_queue);
	init_waitqueue_head(&dev->prepare_wait_queue);
	
	if (usb_submit_urb(&dev->ep1_in_urb, GFP_KERNEL) != 0)
		return -EIO;

	err = snd_usb_caiaq_send_command(dev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
	if (err)
		return err;

	if (!wait_event_timeout(dev->ep1_wait_queue, dev->spec_received, HZ))
		return -ENODEV;

	usb_string(usb_dev, usb_dev->descriptor.iManufacturer,
		   dev->vendor_name, CAIAQ_USB_STR_LEN);
	
	usb_string(usb_dev, usb_dev->descriptor.iProduct,
		   dev->product_name, CAIAQ_USB_STR_LEN);
	
	usb_string(usb_dev, usb_dev->descriptor.iSerialNumber,
		   dev->serial, CAIAQ_USB_STR_LEN);

	/* terminate serial string at first white space occurence */
	c = strchr(dev->serial, ' ');
	if (c)
		*c = '\0';
	
	strcpy(card->driver, MODNAME);
	strcpy(card->shortname, dev->product_name);

	len = snprintf(card->longname, sizeof(card->longname),
		       "%s %s (serial %s, ",
		       dev->vendor_name, dev->product_name, dev->serial);

	if (len < sizeof(card->longname) - 2)
		len += usb_make_path(usb_dev, card->longname + len,
				     sizeof(card->longname) - len);

	card->longname[len++] = ')';
	card->longname[len] = '\0';
	setup_card(dev);
	return 0;
}

static int snd_probe(struct usb_interface *intf, 
		     const struct usb_device_id *id)
{
	int ret;
	struct snd_card *card;
	struct usb_device *device = interface_to_usbdev(intf);
	
	card = create_card(device);
	
	if (!card)
		return -ENOMEM;
			
	dev_set_drvdata(&intf->dev, card);
	ret = init_card(caiaqdev(card));
	if (ret < 0) {
		log("unable to init card! (ret=%d)\n", ret);
		snd_card_free(card);
		return ret;
	}
	
	return 0;
}

static void snd_disconnect(struct usb_interface *intf)
{
	struct snd_usb_caiaqdev *dev;
	struct snd_card *card = dev_get_drvdata(&intf->dev);

	debug("snd_disconnect(%p)\n", intf);

	if (!card)
		return;

	dev = caiaqdev(card);
	snd_card_disconnect(card);

#ifdef CONFIG_SND_USB_CAIAQ_INPUT
	snd_usb_caiaq_input_free(dev);
#endif
	snd_usb_caiaq_audio_free(dev);
	
	usb_kill_urb(&dev->ep1_in_urb);
	usb_kill_urb(&dev->midi_out_urb);
	
	snd_card_free(card);
	usb_reset_device(interface_to_usbdev(intf));
}


MODULE_DEVICE_TABLE(usb, snd_usb_id_table);
static struct usb_driver snd_usb_driver = {
	.name 		= MODNAME,
	.probe 		= snd_probe,
	.disconnect	= snd_disconnect,
	.id_table 	= snd_usb_id_table,
};

static int __init snd_module_init(void)
{
	return usb_register(&snd_usb_driver);
}

static void __exit snd_module_exit(void)
{
	usb_deregister(&snd_usb_driver);
}

module_init(snd_module_init)
module_exit(snd_module_exit)
Commit	Line	Data
523f1dce DM	1	/*
	2	* caiaq.c: ALSA driver for caiaq/NativeInstruments devices
	3	*
	4	* Copyright (c) 2007 Daniel Mack <daniel@caiaq.de>
	5	* Karsten Wiese <fzu@wemgehoertderstaat.de>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*/
	21
	22	#include <linux/init.h>
	23	#include <linux/module.h>
	24	#include <linux/moduleparam.h>
	25	#include <linux/interrupt.h>
	26	#include <linux/usb.h>
	27	#include <linux/input.h>
	28	#include <linux/spinlock.h>
	29	#include <sound/driver.h>
	30	#include <sound/core.h>
	31	#include <sound/initval.h>
	32	#include <sound/pcm.h>
	33	#include <sound/rawmidi.h>
8e3cd08e	34	#include <sound/control.h>
523f1dce DM	35
	36	#include "caiaq-device.h"
	37	#include "caiaq-audio.h"
	38	#include "caiaq-midi.h"
8e3cd08e	39	#include "caiaq-control.h"
523f1dce DM	40
	41	#ifdef CONFIG_SND_USB_CAIAQ_INPUT
	42	#include "caiaq-input.h"
	43	#endif
	44
	45	MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
7829d0ec	46	MODULE_DESCRIPTION("caiaq USB audio, version 1.3.1");
523f1dce DM	47	MODULE_LICENSE("GPL");
523f1dce DM	48	MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
ad1e34b5	49	"{Native Instruments, RigKontrol3},"
523f1dce	50	"{Native Instruments, Kore Controller},"
7829d0ec	51	"{Native Instruments, Kore Controller 2},"
523f1dce DM	52	"{Native Instruments, Audio Kontrol 1}"
	53	"{Native Instruments, Audio 8 DJ}}");
	54
	55	static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
	56	static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
	57	static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
	58	static int snd_card_used[SNDRV_CARDS];
	59
	60	module_param_array(index, int, NULL, 0444);
	61	MODULE_PARM_DESC(index, "Index value for the caiaq sound device");
	62	module_param_array(id, charp, NULL, 0444);
	63	MODULE_PARM_DESC(id, "ID string for the caiaq soundcard.");
	64	module_param_array(enable, bool, NULL, 0444);
	65	MODULE_PARM_DESC(enable, "Enable the caiaq soundcard.");
	66
	67	enum {
	68	SAMPLERATE_44100 = 0,
	69	SAMPLERATE_48000 = 1,
	70	SAMPLERATE_96000 = 2,
	71	SAMPLERATE_192000 = 3,
	72	SAMPLERATE_88200 = 4,
	73	SAMPLERATE_INVALID = 0xff
	74	};
	75
	76	enum {
	77	DEPTH_NONE = 0,
	78	DEPTH_16 = 1,
	79	DEPTH_24 = 2,
	80	DEPTH_32 = 3
	81	};
	82
	83	static struct usb_device_id snd_usb_id_table[] = {
	84	{
	85	.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
	86	.idVendor = USB_VID_NATIVEINSTRUMENTS,
	87	.idProduct = USB_PID_RIGKONTROL2
	88	},
ad1e34b5 DM	89	{
	90	.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
	91	.idVendor = USB_VID_NATIVEINSTRUMENTS,
	92	.idProduct = USB_PID_RIGKONTROL3
	93	},
523f1dce DM	94	{
	95	.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
	96	.idVendor = USB_VID_NATIVEINSTRUMENTS,
	97	.idProduct = USB_PID_KORECONTROLLER
	98	},
7829d0ec DM	99	{
	100	.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
	101	.idVendor = USB_VID_NATIVEINSTRUMENTS,
	102	.idProduct = USB_PID_KORECONTROLLER2
	103	},
523f1dce DM	104	{
	105	.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
	106	.idVendor = USB_VID_NATIVEINSTRUMENTS,
	107	.idProduct = USB_PID_AK1
	108	},
	109	{
	110	.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
	111	.idVendor = USB_VID_NATIVEINSTRUMENTS,
	112	.idProduct = USB_PID_AUDIO8DJ
	113	},
	114	{ /* terminator */ }
	115	};
	116
	117	static void usb_ep1_command_reply_dispatch (struct urb* urb)
	118	{
	119	int ret;
	120	struct snd_usb_caiaqdev *dev = urb->context;
	121	unsigned char *buf = urb->transfer_buffer;
	122
	123	if (urb->status \|\| !dev) {
	124	log("received EP1 urb->status = %i\n", urb->status);
	125	return;
	126	}
	127
	128	switch(buf[0]) {
	129	case EP1_CMD_GET_DEVICE_INFO:
	130	memcpy(&dev->spec, buf+1, sizeof(struct caiaq_device_spec));
	131	dev->spec.fw_version = le16_to_cpu(dev->spec.fw_version);
	132	debug("device spec (firmware %d): audio: %d in, %d out, "
	133	"MIDI: %d in, %d out, data alignment %d\n",
	134	dev->spec.fw_version,
	135	dev->spec.num_analog_audio_in,
	136	dev->spec.num_analog_audio_out,
	137	dev->spec.num_midi_in,
	138	dev->spec.num_midi_out,
	139	dev->spec.data_alignment);
	140
	141	dev->spec_received++;
	142	wake_up(&dev->ep1_wait_queue);
	143	break;
	144	case EP1_CMD_AUDIO_PARAMS:
	145	dev->audio_parm_answer = buf[1];
	146	wake_up(&dev->ep1_wait_queue);
	147	break;
	148	case EP1_CMD_MIDI_READ:
	149	snd_usb_caiaq_midi_handle_input(dev, buf[1], buf + 3, buf[2]);
	150	break;
8e3cd08e DM	151	case EP1_CMD_READ_IO:
	152	if (dev->chip.usb_id ==
	153	USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ)) {
	154	if (urb->actual_length > sizeof(dev->control_state))
	155	urb->actual_length = sizeof(dev->control_state);
	156	memcpy(dev->control_state, buf + 1, urb->actual_length);
	157	wake_up(&dev->ep1_wait_queue);
	158	break;
	159	}
523f1dce DM	160	#ifdef CONFIG_SND_USB_CAIAQ_INPUT
	161	case EP1_CMD_READ_ERP:
	162	case EP1_CMD_READ_ANALOG:
523f1dce	163	snd_usb_caiaq_input_dispatch(dev, buf, urb->actual_length);
523f1dce	164	#endif
8e3cd08e	165	break;
523f1dce DM	166	}
	167
	168	dev->ep1_in_urb.actual_length = 0;
	169	ret = usb_submit_urb(&dev->ep1_in_urb, GFP_ATOMIC);
	170	if (ret < 0)
	171	log("unable to submit urb. OOM!?\n");
	172	}
	173
8e3cd08e DM	174	int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *dev,
	175	unsigned char command,
	176	const unsigned char *buffer,
	177	int len)
523f1dce DM	178	{
	179	int actual_len;
	180	struct usb_device *usb_dev = dev->chip.dev;
	181
	182	if (!usb_dev)
	183	return -EIO;
	184
	185	if (len > EP1_BUFSIZE - 1)
	186	len = EP1_BUFSIZE - 1;
	187
	188	if (buffer && len > 0)
	189	memcpy(dev->ep1_out_buf+1, buffer, len);
	190
	191	dev->ep1_out_buf[0] = command;
	192	return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1),
	193	dev->ep1_out_buf, len+1, &actual_len, 200);
	194	}
	195
	196	int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev,
	197	int rate, int depth, int bpp)
	198	{
	199	int ret;
	200	char tmp[5];
	201
	202	switch (rate) {
	203	case 44100: tmp[0] = SAMPLERATE_44100; break;
	204	case 48000: tmp[0] = SAMPLERATE_48000; break;
	205	case 88200: tmp[0] = SAMPLERATE_88200; break;
	206	case 96000: tmp[0] = SAMPLERATE_96000; break;
	207	case 192000: tmp[0] = SAMPLERATE_192000; break;
	208	default: return -EINVAL;
	209	}
	210
	211	switch (depth) {
	212	case 16: tmp[1] = DEPTH_16; break;
	213	case 24: tmp[1] = DEPTH_24; break;
	214	default: return -EINVAL;
	215	}
	216
	217	tmp[2] = bpp & 0xff;
	218	tmp[3] = bpp >> 8;
	219	tmp[4] = 1; /* packets per microframe */
	220
	221	debug("setting audio params: %d Hz, %d bits, %d bpp\n",
	222	rate, depth, bpp);
	223
	224	dev->audio_parm_answer = -1;
8e3cd08e DM	225	ret = snd_usb_caiaq_send_command(dev, EP1_CMD_AUDIO_PARAMS,
8e3cd08e DM	226	tmp, sizeof(tmp));
523f1dce DM	227
	228	if (ret)
	229	return ret;
	230
	231	if (!wait_event_timeout(dev->ep1_wait_queue,
	232	dev->audio_parm_answer >= 0, HZ))
	233	return -EPIPE;
	234
	235	if (dev->audio_parm_answer != 1)
	236	debug("unable to set the device's audio params\n");
	237
	238	return dev->audio_parm_answer == 1 ? 0 : -EINVAL;
	239	}
	240
	241	int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev,
	242	int digital, int analog, int erp)
	243	{
	244	char tmp[3] = { digital, analog, erp };
8e3cd08e DM	245	return snd_usb_caiaq_send_command(dev, EP1_CMD_AUTO_MSG,
8e3cd08e DM	246	tmp, sizeof(tmp));
523f1dce DM	247	}
	248
	249	static void setup_card(struct snd_usb_caiaqdev *dev)
	250	{
	251	int ret;
ad1e34b5	252	char val[4];
523f1dce DM	253
	254	/* device-specific startup specials */
	255	switch (dev->chip.usb_id) {
	256	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
	257	/* RigKontrol2 - display centered dash ('-') */
	258	val[0] = 0x00;
	259	val[1] = 0x00;
	260	val[2] = 0x01;
8e3cd08e	261	snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 3);
523f1dce	262	break;
ad1e34b5 DM	263	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
	264	/* RigKontrol2 - display two centered dashes ('--') */
	265	val[0] = 0x00;
	266	val[1] = 0x40;
	267	val[2] = 0x40;
	268	val[3] = 0x00;
8e3cd08e	269	snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 4);
ad1e34b5	270	break;
523f1dce DM	271	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
	272	/* Audio Kontrol 1 - make USB-LED stop blinking */
	273	val[0] = 0x00;
8e3cd08e DM	274	snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 1);
	275	break;
	276	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ):
	277	/* Audio 8 DJ - trigger read of current settings */
	278	dev->control_state[0] = 0xff;
	279	snd_usb_caiaq_set_auto_msg(dev, 1, 0, 0);
	280	snd_usb_caiaq_send_command(dev, EP1_CMD_READ_IO, NULL, 0);
	281
	282	if (!wait_event_timeout(dev->ep1_wait_queue,
	283	dev->control_state[0] != 0xff, HZ))
	284	return;
	285
	286	/* fix up some defaults */
	287	if ((dev->control_state[1] != 2) \|\|
	288	(dev->control_state[2] != 3) \|\|
	289	(dev->control_state[4] != 2)) {
	290	dev->control_state[1] = 2;
	291	dev->control_state[2] = 3;
	292	dev->control_state[4] = 2;
	293	snd_usb_caiaq_send_command(dev,
	294	EP1_CMD_WRITE_IO, dev->control_state, 6);
	295	}
	296
523f1dce DM	297	break;
	298	}
	299
7829d0ec DM	300	if (dev->spec.num_analog_audio_out +
	301	dev->spec.num_analog_audio_in +
	302	dev->spec.num_digital_audio_out +
	303	dev->spec.num_digital_audio_in > 0) {
	304	ret = snd_usb_caiaq_audio_init(dev);
	305	if (ret < 0)
	306	log("Unable to set up audio system (ret=%d)\n", ret);
	307	}
523f1dce	308
7829d0ec DM	309	if (dev->spec.num_midi_in +
	310	dev->spec.num_midi_out > 0) {
	311	ret = snd_usb_caiaq_midi_init(dev);
	312	if (ret < 0)
	313	log("Unable to set up MIDI system (ret=%d)\n", ret);
	314	}
523f1dce DM	315
	316	#ifdef CONFIG_SND_USB_CAIAQ_INPUT
	317	ret = snd_usb_caiaq_input_init(dev);
	318	if (ret < 0)
	319	log("Unable to set up input system (ret=%d)\n", ret);
	320	#endif
	321
	322	/* finally, register the card and all its sub-instances */
	323	ret = snd_card_register(dev->chip.card);
	324	if (ret < 0) {
	325	log("snd_card_register() returned %d\n", ret);
	326	snd_card_free(dev->chip.card);
	327	}
8e3cd08e DM	328
	329	ret = snd_usb_caiaq_control_init(dev);
	330	if (ret < 0)
	331	log("Unable to set up control system (ret=%d)\n", ret);
523f1dce DM	332	}
	333
	334	static struct snd_card* create_card(struct usb_device* usb_dev)
	335	{
	336	int devnum;
	337	struct snd_card *card;
	338	struct snd_usb_caiaqdev *dev;
	339
	340	for (devnum = 0; devnum < SNDRV_CARDS; devnum++)
	341	if (enable[devnum] && !snd_card_used[devnum])
	342	break;
	343
	344	if (devnum >= SNDRV_CARDS)
	345	return NULL;
	346
	347	card = snd_card_new(index[devnum], id[devnum], THIS_MODULE,
	348	sizeof(struct snd_usb_caiaqdev));
	349	if (!card)
	350	return NULL;
	351
	352	dev = caiaqdev(card);
	353	dev->chip.dev = usb_dev;
	354	dev->chip.card = card;
	355	dev->chip.usb_id = USB_ID(usb_dev->descriptor.idVendor,
	356	usb_dev->descriptor.idProduct);
	357	spin_lock_init(&dev->spinlock);
	358	snd_card_set_dev(card, &usb_dev->dev);
	359
	360	return card;
	361	}
	362
	363	static int init_card(struct snd_usb_caiaqdev *dev)
	364	{
	365	char *c;
	366	struct usb_device *usb_dev = dev->chip.dev;
	367	struct snd_card *card = dev->chip.card;
	368	int err, len;
	369
	370	if (usb_set_interface(usb_dev, 0, 1) != 0) {
	371	log("can't set alt interface.\n");
	372	return -EIO;
	373	}
	374
	375	usb_init_urb(&dev->ep1_in_urb);
	376	usb_init_urb(&dev->midi_out_urb);
	377
	378	usb_fill_bulk_urb(&dev->ep1_in_urb, usb_dev,
	379	usb_rcvbulkpipe(usb_dev, 0x1),
	380	dev->ep1_in_buf, EP1_BUFSIZE,
	381	usb_ep1_command_reply_dispatch, dev);
	382
	383	usb_fill_bulk_urb(&dev->midi_out_urb, usb_dev,
	384	usb_sndbulkpipe(usb_dev, 0x1),
	385	dev->midi_out_buf, EP1_BUFSIZE,
	386	snd_usb_caiaq_midi_output_done, dev);
	387
	388	init_waitqueue_head(&dev->ep1_wait_queue);
	389	init_waitqueue_head(&dev->prepare_wait_queue);
	390
	391	if (usb_submit_urb(&dev->ep1_in_urb, GFP_KERNEL) != 0)
	392	return -EIO;
	393
8e3cd08e	394	err = snd_usb_caiaq_send_command(dev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
523f1dce DM	395	if (err)
	396	return err;
	397
	398	if (!wait_event_timeout(dev->ep1_wait_queue, dev->spec_received, HZ))
	399	return -ENODEV;
	400
	401	usb_string(usb_dev, usb_dev->descriptor.iManufacturer,
	402	dev->vendor_name, CAIAQ_USB_STR_LEN);
	403
	404	usb_string(usb_dev, usb_dev->descriptor.iProduct,
	405	dev->product_name, CAIAQ_USB_STR_LEN);
	406
	407	usb_string(usb_dev, usb_dev->descriptor.iSerialNumber,
	408	dev->serial, CAIAQ_USB_STR_LEN);
	409
	410	/* terminate serial string at first white space occurence */
	411	c = strchr(dev->serial, ' ');
	412	if (c)
	413	*c = '\0';
	414
	415	strcpy(card->driver, MODNAME);
	416	strcpy(card->shortname, dev->product_name);
	417
	418	len = snprintf(card->longname, sizeof(card->longname),
	419	"%s %s (serial %s, ",
	420	dev->vendor_name, dev->product_name, dev->serial);
	421
	422	if (len < sizeof(card->longname) - 2)
	423	len += usb_make_path(usb_dev, card->longname + len,
	424	sizeof(card->longname) - len);
	425
	426	card->longname[len++] = ')';
	427	card->longname[len] = '\0';
	428	setup_card(dev);
	429	return 0;
	430	}
	431
	432	static int snd_probe(struct usb_interface *intf,
	433	const struct usb_device_id *id)
	434	{
	435	int ret;
	436	struct snd_card *card;
	437	struct usb_device *device = interface_to_usbdev(intf);
	438
	439	card = create_card(device);
	440
	441	if (!card)
	442	return -ENOMEM;
	443
	444	dev_set_drvdata(&intf->dev, card);
	445	ret = init_card(caiaqdev(card));
	446	if (ret < 0) {
	447	log("unable to init card! (ret=%d)\n", ret);
	448	snd_card_free(card);
	449	return ret;
	450	}
	451
	452	return 0;
	453	}
	454
	455	static void snd_disconnect(struct usb_interface *intf)
	456	{
	457	struct snd_usb_caiaqdev *dev;
	458	struct snd_card *card = dev_get_drvdata(&intf->dev);
459
460	debug("snd_disconnect(%p)\n", intf);
461
462	if (!card)
463	return;
464
465	dev = caiaqdev(card);
466	snd_card_disconnect(card);
467
468	#ifdef CONFIG_SND_USB_CAIAQ_INPUT
469	snd_usb_caiaq_input_free(dev);
470	#endif
471	snd_usb_caiaq_audio_free(dev);
472
473	usb_kill_urb(&dev->ep1_in_urb);
474	usb_kill_urb(&dev->midi_out_urb);
475
476	snd_card_free(card);
477	usb_reset_device(interface_to_usbdev(intf));
478	}
479
480
481	MODULE_DEVICE_TABLE(usb, snd_usb_id_table);
482	static struct usb_driver snd_usb_driver = {
483	.name = MODNAME,
484	.probe = snd_probe,
485	.disconnect = snd_disconnect,
486	.id_table = snd_usb_id_table,
487	};
488
489	static int __init snd_module_init(void)
490	{
491	return usb_register(&snd_usb_driver);
492	}
493
494	static void __exit snd_module_exit(void)
495	{
496	usb_deregister(&snd_usb_driver);
497	}
498
499	module_init(snd_module_init)
500	module_exit(snd_module_exit)
501