[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 1.3.0");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
			 "{Native Instruments, RigKontrol3},"
			 "{Native Instruments, Kore Controller},"
			 "{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_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;
	}
	
	ret = snd_usb_caiaq_audio_init(dev);
	if (ret < 0)
		log("Unable to set up audio system (ret=%d)\n", ret);
	
	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>");
8e3cd08e	46	MODULE_DESCRIPTION("caiaq USB audio, version 1.3.0");
523f1dce DM	47	MODULE_LICENSE("GPL");
523f1dce DM	48	MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
ad1e34b5	49	"{Native Instruments, RigKontrol3},"
523f1dce DM	50	"{Native Instruments, Kore Controller},"
	51	"{Native Instruments, Audio Kontrol 1}"
	52	"{Native Instruments, Audio 8 DJ}}");
	53
	54	static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
	55	static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
	56	static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
	57	static int snd_card_used[SNDRV_CARDS];
	58
	59	module_param_array(index, int, NULL, 0444);
	60	MODULE_PARM_DESC(index, "Index value for the caiaq sound device");
	61	module_param_array(id, charp, NULL, 0444);
	62	MODULE_PARM_DESC(id, "ID string for the caiaq soundcard.");
	63	module_param_array(enable, bool, NULL, 0444);
	64	MODULE_PARM_DESC(enable, "Enable the caiaq soundcard.");
	65
	66	enum {
	67	SAMPLERATE_44100 = 0,
	68	SAMPLERATE_48000 = 1,
	69	SAMPLERATE_96000 = 2,
	70	SAMPLERATE_192000 = 3,
	71	SAMPLERATE_88200 = 4,
	72	SAMPLERATE_INVALID = 0xff
	73	};
	74
	75	enum {
	76	DEPTH_NONE = 0,
	77	DEPTH_16 = 1,
	78	DEPTH_24 = 2,
	79	DEPTH_32 = 3
	80	};
	81
	82	static struct usb_device_id snd_usb_id_table[] = {
	83	{
	84	.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
	85	.idVendor = USB_VID_NATIVEINSTRUMENTS,
	86	.idProduct = USB_PID_RIGKONTROL2
	87	},
ad1e34b5 DM	88	{
	89	.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
	90	.idVendor = USB_VID_NATIVEINSTRUMENTS,
	91	.idProduct = USB_PID_RIGKONTROL3
	92	},
523f1dce DM	93	{
	94	.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
	95	.idVendor = USB_VID_NATIVEINSTRUMENTS,
	96	.idProduct = USB_PID_KORECONTROLLER
	97	},
	98	{
	99	.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
	100	.idVendor = USB_VID_NATIVEINSTRUMENTS,
	101	.idProduct = USB_PID_AK1
	102	},
	103	{
	104	.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
	105	.idVendor = USB_VID_NATIVEINSTRUMENTS,
	106	.idProduct = USB_PID_AUDIO8DJ
	107	},
	108	{ /* terminator */ }
	109	};
	110
	111	static void usb_ep1_command_reply_dispatch (struct urb* urb)
	112	{
	113	int ret;
	114	struct snd_usb_caiaqdev *dev = urb->context;
	115	unsigned char *buf = urb->transfer_buffer;
	116
	117	if (urb->status \|\| !dev) {
	118	log("received EP1 urb->status = %i\n", urb->status);
	119	return;
	120	}
	121
	122	switch(buf[0]) {
	123	case EP1_CMD_GET_DEVICE_INFO:
	124	memcpy(&dev->spec, buf+1, sizeof(struct caiaq_device_spec));
	125	dev->spec.fw_version = le16_to_cpu(dev->spec.fw_version);
	126	debug("device spec (firmware %d): audio: %d in, %d out, "
	127	"MIDI: %d in, %d out, data alignment %d\n",
	128	dev->spec.fw_version,
	129	dev->spec.num_analog_audio_in,
	130	dev->spec.num_analog_audio_out,
	131	dev->spec.num_midi_in,
	132	dev->spec.num_midi_out,
	133	dev->spec.data_alignment);
	134
	135	dev->spec_received++;
	136	wake_up(&dev->ep1_wait_queue);
	137	break;
	138	case EP1_CMD_AUDIO_PARAMS:
	139	dev->audio_parm_answer = buf[1];
	140	wake_up(&dev->ep1_wait_queue);
	141	break;
	142	case EP1_CMD_MIDI_READ:
	143	snd_usb_caiaq_midi_handle_input(dev, buf[1], buf + 3, buf[2]);
	144	break;
8e3cd08e DM	145	case EP1_CMD_READ_IO:
	146	if (dev->chip.usb_id ==
	147	USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ)) {
	148	if (urb->actual_length > sizeof(dev->control_state))
	149	urb->actual_length = sizeof(dev->control_state);
	150	memcpy(dev->control_state, buf + 1, urb->actual_length);
	151	wake_up(&dev->ep1_wait_queue);
	152	break;
	153	}
523f1dce DM	154	#ifdef CONFIG_SND_USB_CAIAQ_INPUT
	155	case EP1_CMD_READ_ERP:
	156	case EP1_CMD_READ_ANALOG:
523f1dce	157	snd_usb_caiaq_input_dispatch(dev, buf, urb->actual_length);
523f1dce	158	#endif
8e3cd08e	159	break;
523f1dce DM	160	}
	161
	162	dev->ep1_in_urb.actual_length = 0;
	163	ret = usb_submit_urb(&dev->ep1_in_urb, GFP_ATOMIC);
	164	if (ret < 0)
	165	log("unable to submit urb. OOM!?\n");
	166	}
	167
8e3cd08e DM	168	int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *dev,
	169	unsigned char command,
	170	const unsigned char *buffer,
	171	int len)
523f1dce DM	172	{
	173	int actual_len;
	174	struct usb_device *usb_dev = dev->chip.dev;
	175
	176	if (!usb_dev)
	177	return -EIO;
	178
	179	if (len > EP1_BUFSIZE - 1)
	180	len = EP1_BUFSIZE - 1;
	181
	182	if (buffer && len > 0)
	183	memcpy(dev->ep1_out_buf+1, buffer, len);
	184
	185	dev->ep1_out_buf[0] = command;
	186	return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1),
	187	dev->ep1_out_buf, len+1, &actual_len, 200);
	188	}
	189
	190	int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev,
	191	int rate, int depth, int bpp)
	192	{
	193	int ret;
	194	char tmp[5];
	195
	196	switch (rate) {
	197	case 44100: tmp[0] = SAMPLERATE_44100; break;
	198	case 48000: tmp[0] = SAMPLERATE_48000; break;
	199	case 88200: tmp[0] = SAMPLERATE_88200; break;
	200	case 96000: tmp[0] = SAMPLERATE_96000; break;
	201	case 192000: tmp[0] = SAMPLERATE_192000; break;
	202	default: return -EINVAL;
	203	}
	204
	205	switch (depth) {
	206	case 16: tmp[1] = DEPTH_16; break;
	207	case 24: tmp[1] = DEPTH_24; break;
	208	default: return -EINVAL;
	209	}
	210
	211	tmp[2] = bpp & 0xff;
	212	tmp[3] = bpp >> 8;
	213	tmp[4] = 1; /* packets per microframe */
	214
	215	debug("setting audio params: %d Hz, %d bits, %d bpp\n",
	216	rate, depth, bpp);
	217
	218	dev->audio_parm_answer = -1;
8e3cd08e DM	219	ret = snd_usb_caiaq_send_command(dev, EP1_CMD_AUDIO_PARAMS,
8e3cd08e DM	220	tmp, sizeof(tmp));
523f1dce DM	221
	222	if (ret)
	223	return ret;
	224
	225	if (!wait_event_timeout(dev->ep1_wait_queue,
	226	dev->audio_parm_answer >= 0, HZ))
	227	return -EPIPE;
	228
	229	if (dev->audio_parm_answer != 1)
	230	debug("unable to set the device's audio params\n");
	231
	232	return dev->audio_parm_answer == 1 ? 0 : -EINVAL;
	233	}
	234
	235	int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev,
	236	int digital, int analog, int erp)
	237	{
	238	char tmp[3] = { digital, analog, erp };
8e3cd08e DM	239	return snd_usb_caiaq_send_command(dev, EP1_CMD_AUTO_MSG,
8e3cd08e DM	240	tmp, sizeof(tmp));
523f1dce DM	241	}
	242
	243	static void setup_card(struct snd_usb_caiaqdev *dev)
	244	{
	245	int ret;
ad1e34b5	246	char val[4];
523f1dce DM	247
	248	/* device-specific startup specials */
	249	switch (dev->chip.usb_id) {
	250	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
	251	/* RigKontrol2 - display centered dash ('-') */
	252	val[0] = 0x00;
	253	val[1] = 0x00;
	254	val[2] = 0x01;
8e3cd08e	255	snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 3);
523f1dce	256	break;
ad1e34b5 DM	257	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
	258	/* RigKontrol2 - display two centered dashes ('--') */
	259	val[0] = 0x00;
	260	val[1] = 0x40;
	261	val[2] = 0x40;
	262	val[3] = 0x00;
8e3cd08e	263	snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 4);
ad1e34b5	264	break;
523f1dce DM	265	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
	266	/* Audio Kontrol 1 - make USB-LED stop blinking */
	267	val[0] = 0x00;
8e3cd08e DM	268	snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 1);
	269	break;
	270	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ):
	271	/* Audio 8 DJ - trigger read of current settings */
	272	dev->control_state[0] = 0xff;
	273	snd_usb_caiaq_set_auto_msg(dev, 1, 0, 0);
	274	snd_usb_caiaq_send_command(dev, EP1_CMD_READ_IO, NULL, 0);
	275
	276	if (!wait_event_timeout(dev->ep1_wait_queue,
	277	dev->control_state[0] != 0xff, HZ))
	278	return;
	279
	280	/* fix up some defaults */
	281	if ((dev->control_state[1] != 2) \|\|
	282	(dev->control_state[2] != 3) \|\|
	283	(dev->control_state[4] != 2)) {
	284	dev->control_state[1] = 2;
	285	dev->control_state[2] = 3;
	286	dev->control_state[4] = 2;
	287	snd_usb_caiaq_send_command(dev,
	288	EP1_CMD_WRITE_IO, dev->control_state, 6);
	289	}
	290
523f1dce DM	291	break;
	292	}
	293
	294	ret = snd_usb_caiaq_audio_init(dev);
	295	if (ret < 0)
	296	log("Unable to set up audio system (ret=%d)\n", ret);
	297
	298	ret = snd_usb_caiaq_midi_init(dev);
	299	if (ret < 0)
	300	log("Unable to set up MIDI system (ret=%d)\n", ret);
	301
	302	#ifdef CONFIG_SND_USB_CAIAQ_INPUT
	303	ret = snd_usb_caiaq_input_init(dev);
	304	if (ret < 0)
	305	log("Unable to set up input system (ret=%d)\n", ret);
	306	#endif
	307
	308	/* finally, register the card and all its sub-instances */
	309	ret = snd_card_register(dev->chip.card);
	310	if (ret < 0) {
	311	log("snd_card_register() returned %d\n", ret);
	312	snd_card_free(dev->chip.card);
	313	}
8e3cd08e DM	314
	315	ret = snd_usb_caiaq_control_init(dev);
	316	if (ret < 0)
	317	log("Unable to set up control system (ret=%d)\n", ret);
523f1dce DM	318	}
	319
	320	static struct snd_card* create_card(struct usb_device* usb_dev)
	321	{
	322	int devnum;
	323	struct snd_card *card;
	324	struct snd_usb_caiaqdev *dev;
	325
	326	for (devnum = 0; devnum < SNDRV_CARDS; devnum++)
	327	if (enable[devnum] && !snd_card_used[devnum])
	328	break;
	329
	330	if (devnum >= SNDRV_CARDS)
	331	return NULL;
	332
	333	card = snd_card_new(index[devnum], id[devnum], THIS_MODULE,
	334	sizeof(struct snd_usb_caiaqdev));
	335	if (!card)
	336	return NULL;
	337
	338	dev = caiaqdev(card);
	339	dev->chip.dev = usb_dev;
	340	dev->chip.card = card;
	341	dev->chip.usb_id = USB_ID(usb_dev->descriptor.idVendor,
	342	usb_dev->descriptor.idProduct);
	343	spin_lock_init(&dev->spinlock);
	344	snd_card_set_dev(card, &usb_dev->dev);
	345
	346	return card;
	347	}
	348
	349	static int init_card(struct snd_usb_caiaqdev *dev)
	350	{
	351	char *c;
	352	struct usb_device *usb_dev = dev->chip.dev;
	353	struct snd_card *card = dev->chip.card;
	354	int err, len;
	355
	356	if (usb_set_interface(usb_dev, 0, 1) != 0) {
	357	log("can't set alt interface.\n");
	358	return -EIO;
	359	}
	360
	361	usb_init_urb(&dev->ep1_in_urb);
	362	usb_init_urb(&dev->midi_out_urb);
	363
	364	usb_fill_bulk_urb(&dev->ep1_in_urb, usb_dev,
	365	usb_rcvbulkpipe(usb_dev, 0x1),
	366	dev->ep1_in_buf, EP1_BUFSIZE,
	367	usb_ep1_command_reply_dispatch, dev);
	368
	369	usb_fill_bulk_urb(&dev->midi_out_urb, usb_dev,
	370	usb_sndbulkpipe(usb_dev, 0x1),
	371	dev->midi_out_buf, EP1_BUFSIZE,
	372	snd_usb_caiaq_midi_output_done, dev);
	373
	374	init_waitqueue_head(&dev->ep1_wait_queue);
	375	init_waitqueue_head(&dev->prepare_wait_queue);
	376
	377	if (usb_submit_urb(&dev->ep1_in_urb, GFP_KERNEL) != 0)
	378	return -EIO;
	379
8e3cd08e	380	err = snd_usb_caiaq_send_command(dev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
523f1dce DM	381	if (err)
	382	return err;
	383
	384	if (!wait_event_timeout(dev->ep1_wait_queue, dev->spec_received, HZ))
	385	return -ENODEV;
	386
	387	usb_string(usb_dev, usb_dev->descriptor.iManufacturer,
	388	dev->vendor_name, CAIAQ_USB_STR_LEN);
	389
	390	usb_string(usb_dev, usb_dev->descriptor.iProduct,
	391	dev->product_name, CAIAQ_USB_STR_LEN);
	392
	393	usb_string(usb_dev, usb_dev->descriptor.iSerialNumber,
	394	dev->serial, CAIAQ_USB_STR_LEN);
	395
	396	/* terminate serial string at first white space occurence */
	397	c = strchr(dev->serial, ' ');
	398	if (c)
	399	*c = '\0';
	400
	401	strcpy(card->driver, MODNAME);
	402	strcpy(card->shortname, dev->product_name);
	403
	404	len = snprintf(card->longname, sizeof(card->longname),
	405	"%s %s (serial %s, ",
	406	dev->vendor_name, dev->product_name, dev->serial);
	407
	408	if (len < sizeof(card->longname) - 2)
	409	len += usb_make_path(usb_dev, card->longname + len,
	410	sizeof(card->longname) - len);
	411
	412	card->longname[len++] = ')';
	413	card->longname[len] = '\0';
	414	setup_card(dev);
	415	return 0;
	416	}
	417
	418	static int snd_probe(struct usb_interface *intf,
	419	const struct usb_device_id *id)
	420	{
	421	int ret;
	422	struct snd_card *card;
	423	struct usb_device *device = interface_to_usbdev(intf);
	424
	425	card = create_card(device);
	426
	427	if (!card)
	428	return -ENOMEM;
	429
	430	dev_set_drvdata(&intf->dev, card);
	431	ret = init_card(caiaqdev(card));
	432	if (ret < 0) {
	433	log("unable to init card! (ret=%d)\n", ret);
	434	snd_card_free(card);
	435	return ret;
	436	}
	437
	438	return 0;
	439	}
	440
	441	static void snd_disconnect(struct usb_interface *intf)
	442	{
	443	struct snd_usb_caiaqdev *dev;
	444	struct snd_card *card = dev_get_drvdata(&intf->dev);
445
446	debug("snd_disconnect(%p)\n", intf);
447
448	if (!card)
449	return;
450
451	dev = caiaqdev(card);
452	snd_card_disconnect(card);
453
454	#ifdef CONFIG_SND_USB_CAIAQ_INPUT
455	snd_usb_caiaq_input_free(dev);
456	#endif
457	snd_usb_caiaq_audio_free(dev);
458
459	usb_kill_urb(&dev->ep1_in_urb);
460	usb_kill_urb(&dev->midi_out_urb);
461
462	snd_card_free(card);
463	usb_reset_device(interface_to_usbdev(intf));
464	}
465
466
467	MODULE_DEVICE_TABLE(usb, snd_usb_id_table);
468	static struct usb_driver snd_usb_driver = {
469	.name = MODNAME,
470	.probe = snd_probe,
471	.disconnect = snd_disconnect,
472	.id_table = snd_usb_id_table,
473	};
474
475	static int __init snd_module_init(void)
476	{
477	return usb_register(&snd_usb_driver);
478	}
479
480	static void __exit snd_module_exit(void)
481	{
482	usb_deregister(&snd_usb_driver);
483	}
484
485	module_init(snd_module_init)
486	module_exit(snd_module_exit)
487