[linux-2.6-block.git] / sound / usb / line6 / toneport.c

/*
 * Line 6 Linux USB driver
 *
 * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
 *                         Emil Myhrman (emil.myhrman@gmail.com)
 *
 *	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, version 2.
 *
 */

#include <linux/wait.h>
#include <linux/usb.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/leds.h>
#include <sound/core.h>
#include <sound/control.h>

#include "capture.h"
#include "driver.h"
#include "playback.h"

enum line6_device_type {
	LINE6_GUITARPORT,
	LINE6_PODSTUDIO_GX,
	LINE6_PODSTUDIO_UX1,
	LINE6_PODSTUDIO_UX2,
	LINE6_TONEPORT_GX,
	LINE6_TONEPORT_UX1,
	LINE6_TONEPORT_UX2,
};

struct usb_line6_toneport;

struct toneport_led {
	struct led_classdev dev;
	char name[64];
	struct usb_line6_toneport *toneport;
	bool registered;
};

struct usb_line6_toneport {
	/* Generic Line 6 USB data */
	struct usb_line6 line6;

	/* Source selector */
	int source;

	/* Serial number of device */
	u32 serial_number;

	/* Firmware version (x 100) */
	u8 firmware_version;

	/* Timer for delayed PCM startup */
	struct timer_list timer;

	/* Device type */
	enum line6_device_type type;

	/* LED instances */
	struct toneport_led leds[2];
};

static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2);

#define TONEPORT_PCM_DELAY 1

static struct snd_ratden toneport_ratden = {
	.num_min = 44100,
	.num_max = 44100,
	.num_step = 1,
	.den = 1
};

static struct line6_pcm_properties toneport_pcm_properties = {
	.playback_hw = {
				  .info = (SNDRV_PCM_INFO_MMAP |
					   SNDRV_PCM_INFO_INTERLEAVED |
					   SNDRV_PCM_INFO_BLOCK_TRANSFER |
					   SNDRV_PCM_INFO_MMAP_VALID |
					   SNDRV_PCM_INFO_PAUSE |
					   SNDRV_PCM_INFO_SYNC_START),
				  .formats = SNDRV_PCM_FMTBIT_S16_LE,
				  .rates = SNDRV_PCM_RATE_KNOT,
				  .rate_min = 44100,
				  .rate_max = 44100,
				  .channels_min = 2,
				  .channels_max = 2,
				  .buffer_bytes_max = 60000,
				  .period_bytes_min = 64,
				  .period_bytes_max = 8192,
				  .periods_min = 1,
				  .periods_max = 1024},
	.capture_hw = {
				 .info = (SNDRV_PCM_INFO_MMAP |
					  SNDRV_PCM_INFO_INTERLEAVED |
					  SNDRV_PCM_INFO_BLOCK_TRANSFER |
					  SNDRV_PCM_INFO_MMAP_VALID |
					  SNDRV_PCM_INFO_SYNC_START),
				 .formats = SNDRV_PCM_FMTBIT_S16_LE,
				 .rates = SNDRV_PCM_RATE_KNOT,
				 .rate_min = 44100,
				 .rate_max = 44100,
				 .channels_min = 2,
				 .channels_max = 2,
				 .buffer_bytes_max = 60000,
				 .period_bytes_min = 64,
				 .period_bytes_max = 8192,
				 .periods_min = 1,
				 .periods_max = 1024},
	.rates = {
			    .nrats = 1,
			    .rats = &toneport_ratden},
	.bytes_per_channel = 2
};

static const struct {
	const char *name;
	int code;
} toneport_source_info[] = {
	{"Microphone", 0x0a01},
	{"Line", 0x0801},
	{"Instrument", 0x0b01},
	{"Inst & Mic", 0x0901}
};

static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2)
{
	int ret;

	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
			      cmd1, cmd2, NULL, 0, LINE6_TIMEOUT * HZ);

	if (ret < 0) {
		dev_err(&usbdev->dev, "send failed (error %d)\n", ret);
		return ret;
	}

	return 0;
}

/* monitor info callback */
static int snd_toneport_monitor_info(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 256;
	return 0;
}

/* monitor get callback */
static int snd_toneport_monitor_get(struct snd_kcontrol *kcontrol,
				    struct snd_ctl_elem_value *ucontrol)
{
	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);

	ucontrol->value.integer.value[0] = line6pcm->volume_monitor;
	return 0;
}

/* monitor put callback */
static int snd_toneport_monitor_put(struct snd_kcontrol *kcontrol,
				    struct snd_ctl_elem_value *ucontrol)
{
	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
	int err;

	if (ucontrol->value.integer.value[0] == line6pcm->volume_monitor)
		return 0;

	line6pcm->volume_monitor = ucontrol->value.integer.value[0];

	if (line6pcm->volume_monitor > 0) {
		err = line6_pcm_acquire(line6pcm, LINE6_STREAM_MONITOR, true);
		if (err < 0) {
			line6pcm->volume_monitor = 0;
			line6_pcm_release(line6pcm, LINE6_STREAM_MONITOR);
			return err;
		}
	} else {
		line6_pcm_release(line6pcm, LINE6_STREAM_MONITOR);
	}

	return 1;
}

/* source info callback */
static int snd_toneport_source_info(struct snd_kcontrol *kcontrol,
				    struct snd_ctl_elem_info *uinfo)
{
	const int size = ARRAY_SIZE(toneport_source_info);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = size;

	if (uinfo->value.enumerated.item >= size)
		uinfo->value.enumerated.item = size - 1;

	strcpy(uinfo->value.enumerated.name,
	       toneport_source_info[uinfo->value.enumerated.item].name);

	return 0;
}

/* source get callback */
static int snd_toneport_source_get(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
	struct usb_line6_toneport *toneport =
	    (struct usb_line6_toneport *)line6pcm->line6;
	ucontrol->value.enumerated.item[0] = toneport->source;
	return 0;
}

/* source put callback */
static int snd_toneport_source_put(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
	struct usb_line6_toneport *toneport =
	    (struct usb_line6_toneport *)line6pcm->line6;
	unsigned int source;

	source = ucontrol->value.enumerated.item[0];
	if (source >= ARRAY_SIZE(toneport_source_info))
		return -EINVAL;
	if (source == toneport->source)
		return 0;

	toneport->source = source;
	toneport_send_cmd(toneport->line6.usbdev,
			  toneport_source_info[source].code, 0x0000);
	return 1;
}

static void toneport_start_pcm(struct timer_list *t)
{
	struct usb_line6_toneport *toneport = from_timer(toneport, t, timer);
	struct usb_line6 *line6 = &toneport->line6;

	line6_pcm_acquire(line6->line6pcm, LINE6_STREAM_MONITOR, true);
}

/* control definition */
static const struct snd_kcontrol_new toneport_control_monitor = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Monitor Playback Volume",
	.index = 0,
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
	.info = snd_toneport_monitor_info,
	.get = snd_toneport_monitor_get,
	.put = snd_toneport_monitor_put
};

/* source selector definition */
static const struct snd_kcontrol_new toneport_control_source = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "PCM Capture Source",
	.index = 0,
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
	.info = snd_toneport_source_info,
	.get = snd_toneport_source_get,
	.put = snd_toneport_source_put
};

/*
	For the led on Guitarport.
	Brightness goes from 0x00 to 0x26. Set a value above this to have led
	blink.
	(void cmd_0x02(byte red, byte green)
*/

static bool toneport_has_led(struct usb_line6_toneport *toneport)
{
	switch (toneport->type) {
	case LINE6_GUITARPORT:
	case LINE6_TONEPORT_GX:
	/* add your device here if you are missing support for the LEDs */
		return true;

	default:
		return false;
	}
}

static const char * const led_colors[2] = { "red", "green" };
static const int led_init_vals[2] = { 0x00, 0x26 };

static void toneport_update_led(struct usb_line6_toneport *toneport)
{
	toneport_send_cmd(toneport->line6.usbdev,
			  (toneport->leds[0].dev.brightness << 8) | 0x0002,
			  toneport->leds[1].dev.brightness);
}

static void toneport_led_brightness_set(struct led_classdev *led_cdev,
					enum led_brightness brightness)
{
	struct toneport_led *leds =
		container_of(led_cdev, struct toneport_led, dev);
	toneport_update_led(leds->toneport);
}

static int toneport_init_leds(struct usb_line6_toneport *toneport)
{
	struct device *dev = &toneport->line6.usbdev->dev;
	int i, err;

	for (i = 0; i < 2; i++) {
		struct toneport_led *led = &toneport->leds[i];
		struct led_classdev *leddev = &led->dev;

		led->toneport = toneport;
		snprintf(led->name, sizeof(led->name), "%s::%s",
			 dev_name(dev), led_colors[i]);
		leddev->name = led->name;
		leddev->brightness = led_init_vals[i];
		leddev->max_brightness = 0x26;
		leddev->brightness_set = toneport_led_brightness_set;
		err = led_classdev_register(dev, leddev);
		if (err)
			return err;
		led->registered = true;
	}

	return 0;
}

static void toneport_remove_leds(struct usb_line6_toneport *toneport)
{
	struct toneport_led *led;
	int i;

	for (i = 0; i < 2; i++) {
		led = &toneport->leds[i];
		if (!led->registered)
			break;
		led_classdev_unregister(&led->dev);
		led->registered = false;
	}
}

static bool toneport_has_source_select(struct usb_line6_toneport *toneport)
{
	switch (toneport->type) {
	case LINE6_TONEPORT_UX1:
	case LINE6_TONEPORT_UX2:
	case LINE6_PODSTUDIO_UX1:
	case LINE6_PODSTUDIO_UX2:
		return true;

	default:
		return false;
	}
}

/*
	Setup Toneport device.
*/
static void toneport_setup(struct usb_line6_toneport *toneport)
{
	int ticks;
	struct usb_line6 *line6 = &toneport->line6;
	struct usb_device *usbdev = line6->usbdev;

	/* sync time on device with host: */
	ticks = (int)get_seconds();
	line6_write_data(line6, 0x80c6, &ticks, 4);

	/* enable device: */
	toneport_send_cmd(usbdev, 0x0301, 0x0000);

	/* initialize source select: */
	if (toneport_has_source_select(toneport))
		toneport_send_cmd(usbdev,
				  toneport_source_info[toneport->source].code,
				  0x0000);

	if (toneport_has_led(toneport))
		toneport_update_led(toneport);

	mod_timer(&toneport->timer, jiffies + TONEPORT_PCM_DELAY * HZ);
}

/*
	Toneport device disconnected.
*/
static void line6_toneport_disconnect(struct usb_line6 *line6)
{
	struct usb_line6_toneport *toneport =
		(struct usb_line6_toneport *)line6;

	del_timer_sync(&toneport->timer);

	if (toneport_has_led(toneport))
		toneport_remove_leds(toneport);
}


/*
	 Try to init Toneport device.
*/
static int toneport_init(struct usb_line6 *line6,
			 const struct usb_device_id *id)
{
	int err;
	struct usb_line6_toneport *toneport =  (struct usb_line6_toneport *) line6;

	toneport->type = id->driver_info;
	timer_setup(&toneport->timer, toneport_start_pcm, 0);

	line6->disconnect = line6_toneport_disconnect;

	/* initialize PCM subsystem: */
	err = line6_init_pcm(line6, &toneport_pcm_properties);
	if (err < 0)
		return err;

	/* register monitor control: */
	err = snd_ctl_add(line6->card,
			  snd_ctl_new1(&toneport_control_monitor,
				       line6->line6pcm));
	if (err < 0)
		return err;

	/* register source select control: */
	if (toneport_has_source_select(toneport)) {
		err =
		    snd_ctl_add(line6->card,
				snd_ctl_new1(&toneport_control_source,
					     line6->line6pcm));
		if (err < 0)
			return err;
	}

	line6_read_serial_number(line6, &toneport->serial_number);
	line6_read_data(line6, 0x80c2, &toneport->firmware_version, 1);

	if (toneport_has_led(toneport)) {
		err = toneport_init_leds(toneport);
		if (err < 0)
			return err;
	}

	toneport_setup(toneport);

	/* register audio system: */
	return snd_card_register(line6->card);
}

#ifdef CONFIG_PM
/*
	Resume Toneport device after reset.
*/
static int toneport_reset_resume(struct usb_interface *interface)
{
	toneport_setup(usb_get_intfdata(interface));
	return line6_resume(interface);
}
#endif

#define LINE6_DEVICE(prod) USB_DEVICE(0x0e41, prod)
#define LINE6_IF_NUM(prod, n) USB_DEVICE_INTERFACE_NUMBER(0x0e41, prod, n)

/* table of devices that work with this driver */
static const struct usb_device_id toneport_id_table[] = {
	{ LINE6_DEVICE(0x4750),    .driver_info = LINE6_GUITARPORT },
	{ LINE6_DEVICE(0x4153),    .driver_info = LINE6_PODSTUDIO_GX },
	{ LINE6_DEVICE(0x4150),    .driver_info = LINE6_PODSTUDIO_UX1 },
	{ LINE6_IF_NUM(0x4151, 0), .driver_info = LINE6_PODSTUDIO_UX2 },
	{ LINE6_DEVICE(0x4147),    .driver_info = LINE6_TONEPORT_GX },
	{ LINE6_DEVICE(0x4141),    .driver_info = LINE6_TONEPORT_UX1 },
	{ LINE6_IF_NUM(0x4142, 0), .driver_info = LINE6_TONEPORT_UX2 },
	{}
};

MODULE_DEVICE_TABLE(usb, toneport_id_table);

static const struct line6_properties toneport_properties_table[] = {
	[LINE6_GUITARPORT] = {
		.id = "GuitarPort",
		.name = "GuitarPort",
		.capabilities	= LINE6_CAP_PCM,
		.altsetting = 2,  /* 1..4 seem to be ok */
		/* no control channel */
		.ep_audio_r = 0x82,
		.ep_audio_w = 0x01,
	},
	[LINE6_PODSTUDIO_GX] = {
		.id = "PODStudioGX",
		.name = "POD Studio GX",
		.capabilities	= LINE6_CAP_PCM,
		.altsetting = 2,  /* 1..4 seem to be ok */
		/* no control channel */
		.ep_audio_r = 0x82,
		.ep_audio_w = 0x01,
	},
	[LINE6_PODSTUDIO_UX1] = {
		.id = "PODStudioUX1",
		.name = "POD Studio UX1",
		.capabilities	= LINE6_CAP_PCM,
		.altsetting = 2,  /* 1..4 seem to be ok */
		/* no control channel */
		.ep_audio_r = 0x82,
		.ep_audio_w = 0x01,
	},
	[LINE6_PODSTUDIO_UX2] = {
		.id = "PODStudioUX2",
		.name = "POD Studio UX2",
		.capabilities	= LINE6_CAP_PCM,
		.altsetting = 2,  /* defaults to 44.1kHz, 16-bit */
		/* no control channel */
		.ep_audio_r = 0x82,
		.ep_audio_w = 0x01,
	},
	[LINE6_TONEPORT_GX] = {
		.id = "TonePortGX",
		.name = "TonePort GX",
		.capabilities	= LINE6_CAP_PCM,
		.altsetting = 2,  /* 1..4 seem to be ok */
		/* no control channel */
		.ep_audio_r = 0x82,
		.ep_audio_w = 0x01,
	},
	[LINE6_TONEPORT_UX1] = {
		.id = "TonePortUX1",
		.name = "TonePort UX1",
		.capabilities	= LINE6_CAP_PCM,
		.altsetting = 2,  /* 1..4 seem to be ok */
		/* no control channel */
		.ep_audio_r = 0x82,
		.ep_audio_w = 0x01,
	},
	[LINE6_TONEPORT_UX2] = {
		.id = "TonePortUX2",
		.name = "TonePort UX2",
		.capabilities	= LINE6_CAP_PCM,
		.altsetting = 2,  /* defaults to 44.1kHz, 16-bit */
		/* no control channel */
		.ep_audio_r = 0x82,
		.ep_audio_w = 0x01,
	},
};

/*
	Probe USB device.
*/
static int toneport_probe(struct usb_interface *interface,
			  const struct usb_device_id *id)
{
	return line6_probe(interface, id, "Line6-TonePort",
			   &toneport_properties_table[id->driver_info],
			   toneport_init, sizeof(struct usb_line6_toneport));
}

static struct usb_driver toneport_driver = {
	.name = KBUILD_MODNAME,
	.probe = toneport_probe,
	.disconnect = line6_disconnect,
#ifdef CONFIG_PM
	.suspend = line6_suspend,
	.resume = line6_resume,
	.reset_resume = toneport_reset_resume,
#endif
	.id_table = toneport_id_table,
};

module_usb_driver(toneport_driver);

MODULE_DESCRIPTION("TonePort USB driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
	1	/*
	2	* Line 6 Linux USB driver
	3	*
	4	* Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
	5	* Emil Myhrman (emil.myhrman@gmail.com)
	6	*
	7	* This program is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU General Public License as
	9	* published by the Free Software Foundation, version 2.
	10	*
	11	*/
	12
	13	#include <linux/wait.h>
	14	#include <linux/usb.h>
	15	#include <linux/slab.h>
	16	#include <linux/module.h>
	17	#include <linux/leds.h>
	18	#include <sound/core.h>
	19	#include <sound/control.h>
	20
	21	#include "capture.h"
	22	#include "driver.h"
	23	#include "playback.h"
	24
	25	enum line6_device_type {
	26	LINE6_GUITARPORT,
	27	LINE6_PODSTUDIO_GX,
	28	LINE6_PODSTUDIO_UX1,
	29	LINE6_PODSTUDIO_UX2,
	30	LINE6_TONEPORT_GX,
	31	LINE6_TONEPORT_UX1,
	32	LINE6_TONEPORT_UX2,
	33	};
	34
	35	struct usb_line6_toneport;
	36
	37	struct toneport_led {
	38	struct led_classdev dev;
	39	char name[64];
	40	struct usb_line6_toneport *toneport;
	41	bool registered;
	42	};
	43
	44	struct usb_line6_toneport {
	45	/* Generic Line 6 USB data */
	46	struct usb_line6 line6;
	47
	48	/* Source selector */
	49	int source;
	50
	51	/* Serial number of device */
	52	u32 serial_number;
	53
	54	/* Firmware version (x 100) */
	55	u8 firmware_version;
	56
	57	/* Timer for delayed PCM startup */
	58	struct timer_list timer;
	59
	60	/* Device type */
	61	enum line6_device_type type;
	62
	63	/* LED instances */
	64	struct toneport_led leds[2];
	65	};
	66
	67	static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2);
	68
	69	#define TONEPORT_PCM_DELAY 1
	70
	71	static struct snd_ratden toneport_ratden = {
	72	.num_min = 44100,
	73	.num_max = 44100,
	74	.num_step = 1,
	75	.den = 1
	76	};
	77
	78	static struct line6_pcm_properties toneport_pcm_properties = {
	79	.playback_hw = {
	80	.info = (SNDRV_PCM_INFO_MMAP \|
	81	SNDRV_PCM_INFO_INTERLEAVED \|
	82	SNDRV_PCM_INFO_BLOCK_TRANSFER \|
	83	SNDRV_PCM_INFO_MMAP_VALID \|
	84	SNDRV_PCM_INFO_PAUSE \|
	85	SNDRV_PCM_INFO_SYNC_START),
	86	.formats = SNDRV_PCM_FMTBIT_S16_LE,
	87	.rates = SNDRV_PCM_RATE_KNOT,
	88	.rate_min = 44100,
	89	.rate_max = 44100,
	90	.channels_min = 2,
	91	.channels_max = 2,
	92	.buffer_bytes_max = 60000,
	93	.period_bytes_min = 64,
	94	.period_bytes_max = 8192,
	95	.periods_min = 1,
	96	.periods_max = 1024},
	97	.capture_hw = {
	98	.info = (SNDRV_PCM_INFO_MMAP \|
	99	SNDRV_PCM_INFO_INTERLEAVED \|
	100	SNDRV_PCM_INFO_BLOCK_TRANSFER \|
	101	SNDRV_PCM_INFO_MMAP_VALID \|
	102	SNDRV_PCM_INFO_SYNC_START),
	103	.formats = SNDRV_PCM_FMTBIT_S16_LE,
	104	.rates = SNDRV_PCM_RATE_KNOT,
	105	.rate_min = 44100,
	106	.rate_max = 44100,
	107	.channels_min = 2,
	108	.channels_max = 2,
	109	.buffer_bytes_max = 60000,
	110	.period_bytes_min = 64,
	111	.period_bytes_max = 8192,
	112	.periods_min = 1,
	113	.periods_max = 1024},
	114	.rates = {
	115	.nrats = 1,
	116	.rats = &toneport_ratden},
	117	.bytes_per_channel = 2
	118	};
	119
	120	static const struct {
	121	const char *name;
	122	int code;
	123	} toneport_source_info[] = {
	124	{"Microphone", 0x0a01},
	125	{"Line", 0x0801},
	126	{"Instrument", 0x0b01},
	127	{"Inst & Mic", 0x0901}
	128	};
	129
	130	static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2)
	131	{
	132	int ret;
	133
	134	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
	135	USB_TYPE_VENDOR \| USB_RECIP_DEVICE \| USB_DIR_OUT,
	136	cmd1, cmd2, NULL, 0, LINE6_TIMEOUT * HZ);
	137
	138	if (ret < 0) {
	139	dev_err(&usbdev->dev, "send failed (error %d)\n", ret);
	140	return ret;
	141	}
	142
	143	return 0;
	144	}
	145
	146	/* monitor info callback */
	147	static int snd_toneport_monitor_info(struct snd_kcontrol *kcontrol,
	148	struct snd_ctl_elem_info *uinfo)
	149	{
	150	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	151	uinfo->count = 1;
	152	uinfo->value.integer.min = 0;
	153	uinfo->value.integer.max = 256;
	154	return 0;
	155	}
	156
	157	/* monitor get callback */
	158	static int snd_toneport_monitor_get(struct snd_kcontrol *kcontrol,
	159	struct snd_ctl_elem_value *ucontrol)
	160	{
	161	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
	162
	163	ucontrol->value.integer.value[0] = line6pcm->volume_monitor;
	164	return 0;
	165	}
	166
	167	/* monitor put callback */
	168	static int snd_toneport_monitor_put(struct snd_kcontrol *kcontrol,
	169	struct snd_ctl_elem_value *ucontrol)
	170	{
	171	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
	172	int err;
	173
	174	if (ucontrol->value.integer.value[0] == line6pcm->volume_monitor)
	175	return 0;
	176
	177	line6pcm->volume_monitor = ucontrol->value.integer.value[0];
	178
	179	if (line6pcm->volume_monitor > 0) {
	180	err = line6_pcm_acquire(line6pcm, LINE6_STREAM_MONITOR, true);
	181	if (err < 0) {
	182	line6pcm->volume_monitor = 0;
	183	line6_pcm_release(line6pcm, LINE6_STREAM_MONITOR);
	184	return err;
	185	}
	186	} else {
	187	line6_pcm_release(line6pcm, LINE6_STREAM_MONITOR);
	188	}
	189
	190	return 1;
	191	}
	192
	193	/* source info callback */
	194	static int snd_toneport_source_info(struct snd_kcontrol *kcontrol,
	195	struct snd_ctl_elem_info *uinfo)
	196	{
	197	const int size = ARRAY_SIZE(toneport_source_info);
	198
	199	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	200	uinfo->count = 1;
	201	uinfo->value.enumerated.items = size;
	202
	203	if (uinfo->value.enumerated.item >= size)
	204	uinfo->value.enumerated.item = size - 1;
	205
	206	strcpy(uinfo->value.enumerated.name,
	207	toneport_source_info[uinfo->value.enumerated.item].name);
	208
	209	return 0;
	210	}
	211
	212	/* source get callback */
	213	static int snd_toneport_source_get(struct snd_kcontrol *kcontrol,
	214	struct snd_ctl_elem_value *ucontrol)
	215	{
	216	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
	217	struct usb_line6_toneport *toneport =
	218	(struct usb_line6_toneport *)line6pcm->line6;
	219	ucontrol->value.enumerated.item[0] = toneport->source;
	220	return 0;
	221	}
	222
	223	/* source put callback */
	224	static int snd_toneport_source_put(struct snd_kcontrol *kcontrol,
	225	struct snd_ctl_elem_value *ucontrol)
	226	{
	227	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
	228	struct usb_line6_toneport *toneport =
	229	(struct usb_line6_toneport *)line6pcm->line6;
	230	unsigned int source;
	231
	232	source = ucontrol->value.enumerated.item[0];
	233	if (source >= ARRAY_SIZE(toneport_source_info))
	234	return -EINVAL;
	235	if (source == toneport->source)
	236	return 0;
	237
	238	toneport->source = source;
	239	toneport_send_cmd(toneport->line6.usbdev,
	240	toneport_source_info[source].code, 0x0000);
	241	return 1;
	242	}
	243
	244	static void toneport_start_pcm(struct timer_list *t)
	245	{
	246	struct usb_line6_toneport *toneport = from_timer(toneport, t, timer);
	247	struct usb_line6 *line6 = &toneport->line6;
	248
	249	line6_pcm_acquire(line6->line6pcm, LINE6_STREAM_MONITOR, true);
	250	}
	251
	252	/* control definition */
	253	static const struct snd_kcontrol_new toneport_control_monitor = {
	254	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	255	.name = "Monitor Playback Volume",
	256	.index = 0,
	257	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
	258	.info = snd_toneport_monitor_info,
	259	.get = snd_toneport_monitor_get,
	260	.put = snd_toneport_monitor_put
	261	};
	262
	263	/* source selector definition */
	264	static const struct snd_kcontrol_new toneport_control_source = {
	265	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	266	.name = "PCM Capture Source",
	267	.index = 0,
	268	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
	269	.info = snd_toneport_source_info,
	270	.get = snd_toneport_source_get,
	271	.put = snd_toneport_source_put
	272	};
	273
	274	/*
	275	For the led on Guitarport.
	276	Brightness goes from 0x00 to 0x26. Set a value above this to have led
	277	blink.
	278	(void cmd_0x02(byte red, byte green)
	279	*/
	280
	281	static bool toneport_has_led(struct usb_line6_toneport *toneport)
	282	{
	283	switch (toneport->type) {
	284	case LINE6_GUITARPORT:
	285	case LINE6_TONEPORT_GX:
	286	/* add your device here if you are missing support for the LEDs */
	287	return true;
	288
	289	default:
	290	return false;
	291	}
	292	}
	293
	294	static const char * const led_colors[2] = { "red", "green" };
	295	static const int led_init_vals[2] = { 0x00, 0x26 };
	296
	297	static void toneport_update_led(struct usb_line6_toneport *toneport)
	298	{
	299	toneport_send_cmd(toneport->line6.usbdev,
	300	(toneport->leds[0].dev.brightness << 8) \| 0x0002,
	301	toneport->leds[1].dev.brightness);
	302	}
	303
	304	static void toneport_led_brightness_set(struct led_classdev *led_cdev,
	305	enum led_brightness brightness)
	306	{
	307	struct toneport_led *leds =
	308	container_of(led_cdev, struct toneport_led, dev);
	309	toneport_update_led(leds->toneport);
	310	}
	311
	312	static int toneport_init_leds(struct usb_line6_toneport *toneport)
	313	{
	314	struct device *dev = &toneport->line6.usbdev->dev;
	315	int i, err;
	316
	317	for (i = 0; i < 2; i++) {
	318	struct toneport_led *led = &toneport->leds[i];
	319	struct led_classdev *leddev = &led->dev;
	320
	321	led->toneport = toneport;
	322	snprintf(led->name, sizeof(led->name), "%s::%s",
	323	dev_name(dev), led_colors[i]);
	324	leddev->name = led->name;
	325	leddev->brightness = led_init_vals[i];
	326	leddev->max_brightness = 0x26;
	327	leddev->brightness_set = toneport_led_brightness_set;
	328	err = led_classdev_register(dev, leddev);
	329	if (err)
	330	return err;
	331	led->registered = true;
	332	}
	333
	334	return 0;
	335	}
	336
	337	static void toneport_remove_leds(struct usb_line6_toneport *toneport)
	338	{
	339	struct toneport_led *led;
	340	int i;
	341
	342	for (i = 0; i < 2; i++) {
	343	led = &toneport->leds[i];
	344	if (!led->registered)
	345	break;
	346	led_classdev_unregister(&led->dev);
	347	led->registered = false;
	348	}
	349	}
	350
	351	static bool toneport_has_source_select(struct usb_line6_toneport *toneport)
	352	{
	353	switch (toneport->type) {
	354	case LINE6_TONEPORT_UX1:
	355	case LINE6_TONEPORT_UX2:
	356	case LINE6_PODSTUDIO_UX1:
	357	case LINE6_PODSTUDIO_UX2:
	358	return true;
	359
	360	default:
	361	return false;
	362	}
	363	}
	364
	365	/*
	366	Setup Toneport device.
	367	*/
	368	static void toneport_setup(struct usb_line6_toneport *toneport)
	369	{
	370	int ticks;
	371	struct usb_line6 *line6 = &toneport->line6;
	372	struct usb_device *usbdev = line6->usbdev;
	373
	374	/* sync time on device with host: */
	375	ticks = (int)get_seconds();
	376	line6_write_data(line6, 0x80c6, &ticks, 4);
	377
	378	/* enable device: */
	379	toneport_send_cmd(usbdev, 0x0301, 0x0000);
	380
	381	/* initialize source select: */
	382	if (toneport_has_source_select(toneport))
	383	toneport_send_cmd(usbdev,
	384	toneport_source_info[toneport->source].code,
	385	0x0000);
	386
	387	if (toneport_has_led(toneport))
	388	toneport_update_led(toneport);
	389
	390	mod_timer(&toneport->timer, jiffies + TONEPORT_PCM_DELAY * HZ);
	391	}
	392
	393	/*
	394	Toneport device disconnected.
	395	*/
	396	static void line6_toneport_disconnect(struct usb_line6 *line6)
	397	{
	398	struct usb_line6_toneport *toneport =
	399	(struct usb_line6_toneport *)line6;
	400
	401	del_timer_sync(&toneport->timer);
	402
	403	if (toneport_has_led(toneport))
	404	toneport_remove_leds(toneport);
	405	}
	406
	407
	408	/*
	409	Try to init Toneport device.
	410	*/
	411	static int toneport_init(struct usb_line6 *line6,
	412	const struct usb_device_id *id)
	413	{
	414	int err;
	415	struct usb_line6_toneport toneport = (struct usb_line6_toneport ) line6;
	416
	417	toneport->type = id->driver_info;
	418	timer_setup(&toneport->timer, toneport_start_pcm, 0);
	419
	420	line6->disconnect = line6_toneport_disconnect;
	421
	422	/* initialize PCM subsystem: */
	423	err = line6_init_pcm(line6, &toneport_pcm_properties);
	424	if (err < 0)
	425	return err;
	426
	427	/* register monitor control: */
	428	err = snd_ctl_add(line6->card,
	429	snd_ctl_new1(&toneport_control_monitor,
	430	line6->line6pcm));
	431	if (err < 0)
	432	return err;
	433
	434	/* register source select control: */
	435	if (toneport_has_source_select(toneport)) {
	436	err =
	437	snd_ctl_add(line6->card,
	438	snd_ctl_new1(&toneport_control_source,
	439	line6->line6pcm));
	440	if (err < 0)
	441	return err;
	442	}
	443
	444	line6_read_serial_number(line6, &toneport->serial_number);
	445	line6_read_data(line6, 0x80c2, &toneport->firmware_version, 1);
	446
	447	if (toneport_has_led(toneport)) {
	448	err = toneport_init_leds(toneport);
	449	if (err < 0)
	450	return err;
	451	}
	452
	453	toneport_setup(toneport);
	454
	455	/* register audio system: */
	456	return snd_card_register(line6->card);
	457	}
	458
	459	#ifdef CONFIG_PM
	460	/*
	461	Resume Toneport device after reset.
	462	*/
	463	static int toneport_reset_resume(struct usb_interface *interface)
	464	{
	465	toneport_setup(usb_get_intfdata(interface));
	466	return line6_resume(interface);
	467	}
	468	#endif
	469
	470	#define LINE6_DEVICE(prod) USB_DEVICE(0x0e41, prod)
	471	#define LINE6_IF_NUM(prod, n) USB_DEVICE_INTERFACE_NUMBER(0x0e41, prod, n)
	472
	473	/* table of devices that work with this driver */
	474	static const struct usb_device_id toneport_id_table[] = {
	475	{ LINE6_DEVICE(0x4750), .driver_info = LINE6_GUITARPORT },
	476	{ LINE6_DEVICE(0x4153), .driver_info = LINE6_PODSTUDIO_GX },
	477	{ LINE6_DEVICE(0x4150), .driver_info = LINE6_PODSTUDIO_UX1 },
	478	{ LINE6_IF_NUM(0x4151, 0), .driver_info = LINE6_PODSTUDIO_UX2 },
	479	{ LINE6_DEVICE(0x4147), .driver_info = LINE6_TONEPORT_GX },
	480	{ LINE6_DEVICE(0x4141), .driver_info = LINE6_TONEPORT_UX1 },
	481	{ LINE6_IF_NUM(0x4142, 0), .driver_info = LINE6_TONEPORT_UX2 },
	482	{}
	483	};
	484
	485	MODULE_DEVICE_TABLE(usb, toneport_id_table);
	486
	487	static const struct line6_properties toneport_properties_table[] = {
	488	[LINE6_GUITARPORT] = {
	489	.id = "GuitarPort",
	490	.name = "GuitarPort",
	491	.capabilities = LINE6_CAP_PCM,
	492	.altsetting = 2, /* 1..4 seem to be ok */
	493	/* no control channel */
	494	.ep_audio_r = 0x82,
	495	.ep_audio_w = 0x01,
	496	},
	497	[LINE6_PODSTUDIO_GX] = {
	498	.id = "PODStudioGX",
	499	.name = "POD Studio GX",
	500	.capabilities = LINE6_CAP_PCM,
	501	.altsetting = 2, /* 1..4 seem to be ok */
	502	/* no control channel */
	503	.ep_audio_r = 0x82,
	504	.ep_audio_w = 0x01,
	505	},
	506	[LINE6_PODSTUDIO_UX1] = {
	507	.id = "PODStudioUX1",
	508	.name = "POD Studio UX1",
	509	.capabilities = LINE6_CAP_PCM,
	510	.altsetting = 2, /* 1..4 seem to be ok */
	511	/* no control channel */
	512	.ep_audio_r = 0x82,
	513	.ep_audio_w = 0x01,
	514	},
	515	[LINE6_PODSTUDIO_UX2] = {
	516	.id = "PODStudioUX2",
	517	.name = "POD Studio UX2",
	518	.capabilities = LINE6_CAP_PCM,
	519	.altsetting = 2, /* defaults to 44.1kHz, 16-bit */
	520	/* no control channel */
	521	.ep_audio_r = 0x82,
	522	.ep_audio_w = 0x01,
	523	},
	524	[LINE6_TONEPORT_GX] = {
	525	.id = "TonePortGX",
	526	.name = "TonePort GX",
	527	.capabilities = LINE6_CAP_PCM,
	528	.altsetting = 2, /* 1..4 seem to be ok */
	529	/* no control channel */
	530	.ep_audio_r = 0x82,
	531	.ep_audio_w = 0x01,
	532	},
	533	[LINE6_TONEPORT_UX1] = {
	534	.id = "TonePortUX1",
	535	.name = "TonePort UX1",
	536	.capabilities = LINE6_CAP_PCM,
	537	.altsetting = 2, /* 1..4 seem to be ok */
	538	/* no control channel */
	539	.ep_audio_r = 0x82,
	540	.ep_audio_w = 0x01,
	541	},
	542	[LINE6_TONEPORT_UX2] = {
	543	.id = "TonePortUX2",
	544	.name = "TonePort UX2",
	545	.capabilities = LINE6_CAP_PCM,
	546	.altsetting = 2, /* defaults to 44.1kHz, 16-bit */
	547	/* no control channel */
	548	.ep_audio_r = 0x82,
	549	.ep_audio_w = 0x01,
	550	},
	551	};
	552
	553	/*
	554	Probe USB device.
	555	*/
	556	static int toneport_probe(struct usb_interface *interface,
	557	const struct usb_device_id *id)
	558	{
	559	return line6_probe(interface, id, "Line6-TonePort",
	560	&toneport_properties_table[id->driver_info],
	561	toneport_init, sizeof(struct usb_line6_toneport));
	562	}
	563
	564	static struct usb_driver toneport_driver = {
	565	.name = KBUILD_MODNAME,
	566	.probe = toneport_probe,
	567	.disconnect = line6_disconnect,
	568	#ifdef CONFIG_PM
	569	.suspend = line6_suspend,
	570	.resume = line6_resume,
	571	.reset_resume = toneport_reset_resume,
	572	#endif
	573	.id_table = toneport_id_table,
	574	};
	575
	576	module_usb_driver(toneport_driver);
	577
	578	MODULE_DESCRIPTION("TonePort USB driver");
	579	MODULE_LICENSE("GPL");