[mirror_ubuntu-artful-kernel.git] / drivers / usb / misc / emi62.c

/* 
 * Emagic EMI 2|6 usb audio interface firmware loader.
 * Copyright (C) 2002
 * 	Tapio Laxström (tapio.laxstrom@iptime.fi)
 *
 * 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.
 * 
 * $Id: emi62.c,v 1.15 2002/04/23 06:13:59 tapio Exp $
 */
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/delay.h>
#include <linux/firmware.h>
#include <linux/ihex.h>

/* include firmware (variables)*/

/* FIXME: This is quick and dirty solution! */
#define SPDIF	/* if you want SPDIF comment next line */
//#undef SPDIF	/* if you want MIDI uncomment this line */ 

#ifdef SPDIF
#define FIRMWARE_FW "emi62/spdif.fw"
#else
#define FIRMWARE_FW "emi62/midi.fw"
#endif

#define EMI62_VENDOR_ID 		0x086a  /* Emagic Soft-und Hardware GmBH */
#define EMI62_PRODUCT_ID		0x0110	/* EMI 6|2m without firmware */

#define ANCHOR_LOAD_INTERNAL	0xA0	/* Vendor specific request code for Anchor Upload/Download (This one is implemented in the core) */
#define ANCHOR_LOAD_EXTERNAL	0xA3	/* This command is not implemented in the core. Requires firmware */
#define ANCHOR_LOAD_FPGA	0xA5	/* This command is not implemented in the core. Requires firmware. Emagic extension */
#define MAX_INTERNAL_ADDRESS	0x1B3F	/* This is the highest internal RAM address for the AN2131Q */
#define CPUCS_REG		0x7F92  /* EZ-USB Control and Status Register.  Bit 0 controls 8051 reset */ 
#define INTERNAL_RAM(address)   (address <= MAX_INTERNAL_ADDRESS)

static int emi62_writememory(struct usb_device *dev, int address,
			     const unsigned char *data, int length,
			     __u8 bRequest);
static int emi62_set_reset(struct usb_device *dev, unsigned char reset_bit);
static int emi62_load_firmware (struct usb_device *dev);
static int emi62_probe(struct usb_interface *intf, const struct usb_device_id *id);
static void emi62_disconnect(struct usb_interface *intf);
static int __init emi62_init (void);
static void __exit emi62_exit (void);


/* thanks to drivers/usb/serial/keyspan_pda.c code */
static int emi62_writememory(struct usb_device *dev, int address,
			     const unsigned char *data, int length,
			     __u8 request)
{
	int result;
	unsigned char *buffer =  kmemdup(data, length, GFP_KERNEL);

	if (!buffer) {
		err("emi62: kmalloc(%d) failed.", length);
		return -ENOMEM;
	}
	/* Note: usb_control_msg returns negative value on error or length of the
	 * 		 data that was written! */
	result = usb_control_msg (dev, usb_sndctrlpipe(dev, 0), request, 0x40, address, 0, buffer, length, 300);
	kfree (buffer);
	return result;
}

/* thanks to drivers/usb/serial/keyspan_pda.c code */
static int emi62_set_reset (struct usb_device *dev, unsigned char reset_bit)
{
	int response;
	info("%s - %d", __func__, reset_bit);
	
	response = emi62_writememory (dev, CPUCS_REG, &reset_bit, 1, 0xa0);
	if (response < 0) {
		err("emi62: set_reset (%d) failed", reset_bit);
	}
	return response;
}

#define FW_LOAD_SIZE		1023

static int emi62_load_firmware (struct usb_device *dev)
{
	const struct firmware *loader_fw = NULL;
	const struct firmware *bitstream_fw = NULL;
	const struct firmware *firmware_fw = NULL;
	const struct ihex_binrec *rec;
	int err;
	int i;
	__u32 addr;	/* Address to write */
	__u8 *buf;

	dev_dbg(&dev->dev, "load_firmware\n");
	buf = kmalloc(FW_LOAD_SIZE, GFP_KERNEL);
	if (!buf) {
		err( "%s - error loading firmware: error = %d", __func__, -ENOMEM);
		err = -ENOMEM;
		goto wraperr;
	}

	err = request_ihex_firmware(&loader_fw, "emi62/loader.fw", &dev->dev);
	if (err)
		goto nofw;

	err = request_ihex_firmware(&bitstream_fw, "emi62/bitstream.fw",
				    &dev->dev);
	if (err)
		goto nofw;

	err = request_ihex_firmware(&firmware_fw, FIRMWARE_FW, &dev->dev);
	if (err) {
	nofw:
		err( "%s - request_firmware() failed", __func__);
		goto wraperr;
	}

	/* Assert reset (stop the CPU in the EMI) */
	err = emi62_set_reset(dev,1);
	if (err < 0) {
		err("%s - error loading firmware: error = %d", __func__, err);
		goto wraperr;
	}

	rec = (const struct ihex_binrec *)loader_fw->data;

	/* 1. We need to put the loader for the FPGA into the EZ-USB */
	while (rec) {
		err = emi62_writememory(dev, be32_to_cpu(rec->addr),
					rec->data, be16_to_cpu(rec->len),
					ANCHOR_LOAD_INTERNAL);
		if (err < 0) {
			err("%s - error loading firmware: error = %d", __func__, err);
			goto wraperr;
		}
		rec = ihex_next_binrec(rec);
	}

	/* De-assert reset (let the CPU run) */
	err = emi62_set_reset(dev,0);
	if (err < 0) {
		err("%s - error loading firmware: error = %d", __func__, err);
		goto wraperr;
	}
	msleep(250);	/* let device settle */

	/* 2. We upload the FPGA firmware into the EMI
	 * Note: collect up to 1023 (yes!) bytes and send them with
	 * a single request. This is _much_ faster! */
	rec = (const struct ihex_binrec *)bitstream_fw->data;
	do {
		i = 0;
		addr = be32_to_cpu(rec->addr);

		/* intel hex records are terminated with type 0 element */
		while (rec && (i + be16_to_cpu(rec->len) < FW_LOAD_SIZE)) {
			memcpy(buf + i, rec->data, be16_to_cpu(rec->len));
			i += be16_to_cpu(rec->len);
			rec = ihex_next_binrec(rec);
		}
		err = emi62_writememory(dev, addr, buf, i, ANCHOR_LOAD_FPGA);
		if (err < 0) {
			err("%s - error loading firmware: error = %d", __func__, err);
			goto wraperr;
		}
	} while (i > 0);

	/* Assert reset (stop the CPU in the EMI) */
	err = emi62_set_reset(dev,1);
	if (err < 0) {
		err("%s - error loading firmware: error = %d", __func__, err);
		goto wraperr;
	}

	/* 3. We need to put the loader for the firmware into the EZ-USB (again...) */
	for (rec = (const struct ihex_binrec *)loader_fw->data;
	     rec; rec = ihex_next_binrec(rec)) {
		err = emi62_writememory(dev, be32_to_cpu(rec->addr),
					rec->data, be16_to_cpu(rec->len),
					ANCHOR_LOAD_INTERNAL);
		if (err < 0) {
			err("%s - error loading firmware: error = %d", __func__, err);
			goto wraperr;
		}
	}

	/* De-assert reset (let the CPU run) */
	err = emi62_set_reset(dev,0);
	if (err < 0) {
		err("%s - error loading firmware: error = %d", __func__, err);
		goto wraperr;
	}
	msleep(250);	/* let device settle */

	/* 4. We put the part of the firmware that lies in the external RAM into the EZ-USB */

	for (rec = (const struct ihex_binrec *)firmware_fw->data;
	     rec; rec = ihex_next_binrec(rec)) {
		if (!INTERNAL_RAM(be32_to_cpu(rec->addr))) {
			err = emi62_writememory(dev, be32_to_cpu(rec->addr),
						rec->data, be16_to_cpu(rec->len),
						ANCHOR_LOAD_EXTERNAL);
			if (err < 0) {
				err("%s - error loading firmware: error = %d", __func__, err);
				goto wraperr;
			}
		}
	}

	/* Assert reset (stop the CPU in the EMI) */
	err = emi62_set_reset(dev,1);
	if (err < 0) {
		err("%s - error loading firmware: error = %d", __func__, err);
		goto wraperr;
	}

	for (rec = (const struct ihex_binrec *)firmware_fw->data;
	     rec; rec = ihex_next_binrec(rec)) {
		if (INTERNAL_RAM(be32_to_cpu(rec->addr))) {
			err = emi62_writememory(dev, be32_to_cpu(rec->addr),
						rec->data, be16_to_cpu(rec->len),
						ANCHOR_LOAD_EXTERNAL);
			if (err < 0) {
				err("%s - error loading firmware: error = %d", __func__, err);
				goto wraperr;
			}
		}
	}

	/* De-assert reset (let the CPU run) */
	err = emi62_set_reset(dev,0);
	if (err < 0) {
		err("%s - error loading firmware: error = %d", __func__, err);
		goto wraperr;
	}
	msleep(250);	/* let device settle */

	release_firmware(loader_fw);
	release_firmware(bitstream_fw);
	release_firmware(firmware_fw);

	kfree(buf);

	/* return 1 to fail the driver inialization
	 * and give real driver change to load */
	return 1;

wraperr:
	release_firmware(loader_fw);
	release_firmware(bitstream_fw);
	release_firmware(firmware_fw);

	kfree(buf);
	dev_err(&dev->dev, "Error\n");
	return err;
}

static __devinitdata struct usb_device_id id_table [] = {
	{ USB_DEVICE(EMI62_VENDOR_ID, EMI62_PRODUCT_ID) },
	{ }                                             /* Terminating entry */
};

MODULE_DEVICE_TABLE (usb, id_table);

static int emi62_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
	struct usb_device *dev = interface_to_usbdev(intf);
	dev_dbg(&intf->dev, "emi62_probe\n");

	info("%s start", __func__);

	emi62_load_firmware(dev);

	/* do not return the driver context, let real audio driver do that */
	return -EIO;
}

static void emi62_disconnect(struct usb_interface *intf)
{
}

static struct usb_driver emi62_driver = {
	.name		= "emi62 - firmware loader",
	.probe		= emi62_probe,
	.disconnect	= emi62_disconnect,
	.id_table	= id_table,
};

static int __init emi62_init (void)
{
	int retval;
	retval = usb_register (&emi62_driver);
	if (retval)
		printk(KERN_ERR "adi-emi: registration failed\n");
	return retval;
}

static void __exit emi62_exit (void)
{
	usb_deregister (&emi62_driver);
}

module_init(emi62_init);
module_exit(emi62_exit);

MODULE_AUTHOR("Tapio Laxström");
MODULE_DESCRIPTION("Emagic EMI 6|2m firmware loader.");
MODULE_LICENSE("GPL");

MODULE_FIRMWARE("emi62/loader.fw");
MODULE_FIRMWARE("emi62/bitstream.fw");
MODULE_FIRMWARE(FIRMWARE_FW);
/* vi:ai:syntax=c:sw=8:ts=8:tw=80
 */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Emagic EMI 2\|6 usb audio interface firmware loader.
	3	* Copyright (C) 2002
96de0e25	4	* Tapio Laxström (tapio.laxstrom@iptime.fi)
1da177e4 LT	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License, as published by
	8	* the Free Software Foundation, version 2.
	9	*
	10	* $Id: emi62.c,v 1.15 2002/04/23 06:13:59 tapio Exp $
	11	*/
	12	#include <linux/kernel.h>
	13	#include <linux/errno.h>
	14	#include <linux/slab.h>
	15	#include <linux/init.h>
	16	#include <linux/module.h>
	17	#include <linux/usb.h>
16c23f7d	18	#include <linux/delay.h>
b8e24bfa DW	19	#include <linux/firmware.h>
b8e24bfa DW	20	#include <linux/ihex.h>
1da177e4 LT	21
	22	/* include firmware (variables)*/
	23
	24	/* FIXME: This is quick and dirty solution! */
	25	#define SPDIF /* if you want SPDIF comment next line */
	26	//#undef SPDIF /* if you want MIDI uncomment this line */
	27
	28	#ifdef SPDIF
b8e24bfa	29	#define FIRMWARE_FW "emi62/spdif.fw"
1da177e4	30	#else
b8e24bfa	31	#define FIRMWARE_FW "emi62/midi.fw"
1da177e4 LT	32	#endif
	33
	34	#define EMI62_VENDOR_ID 0x086a /* Emagic Soft-und Hardware GmBH */
	35	#define EMI62_PRODUCT_ID 0x0110 /* EMI 6\|2m without firmware */
	36
	37	#define ANCHOR_LOAD_INTERNAL 0xA0 /* Vendor specific request code for Anchor Upload/Download (This one is implemented in the core) */
	38	#define ANCHOR_LOAD_EXTERNAL 0xA3 /* This command is not implemented in the core. Requires firmware */
	39	#define ANCHOR_LOAD_FPGA 0xA5 /* This command is not implemented in the core. Requires firmware. Emagic extension */
	40	#define MAX_INTERNAL_ADDRESS 0x1B3F /* This is the highest internal RAM address for the AN2131Q */
	41	#define CPUCS_REG 0x7F92 /* EZ-USB Control and Status Register. Bit 0 controls 8051 reset */
	42	#define INTERNAL_RAM(address) (address <= MAX_INTERNAL_ADDRESS)
	43
b8e24bfa DW	44	static int emi62_writememory(struct usb_device *dev, int address,
	45	const unsigned char *data, int length,
	46	__u8 bRequest);
1da177e4 LT	47	static int emi62_set_reset(struct usb_device *dev, unsigned char reset_bit);
	48	static int emi62_load_firmware (struct usb_device *dev);
	49	static int emi62_probe(struct usb_interface intf, const struct usb_device_id id);
	50	static void emi62_disconnect(struct usb_interface *intf);
	51	static int __init emi62_init (void);
	52	static void __exit emi62_exit (void);
	53
	54
	55	/* thanks to drivers/usb/serial/keyspan_pda.c code */
b8e24bfa DW	56	static int emi62_writememory(struct usb_device *dev, int address,
	57	const unsigned char *data, int length,
	58	__u8 request)
1da177e4 LT	59	{
1da177e4 LT	60	int result;
5d7efe5b	61	unsigned char *buffer = kmemdup(data, length, GFP_KERNEL);
1da177e4 LT	62
	63	if (!buffer) {
	64	err("emi62: kmalloc(%d) failed.", length);
	65	return -ENOMEM;
	66	}
1da177e4 LT	67	/* Note: usb_control_msg returns negative value on error or length of the
	68	* data that was written! */
	69	result = usb_control_msg (dev, usb_sndctrlpipe(dev, 0), request, 0x40, address, 0, buffer, length, 300);
	70	kfree (buffer);
	71	return result;
	72	}
	73
	74	/* thanks to drivers/usb/serial/keyspan_pda.c code */
	75	static int emi62_set_reset (struct usb_device *dev, unsigned char reset_bit)
	76	{
	77	int response;
441b62c1	78	info("%s - %d", __func__, reset_bit);
1da177e4 LT	79
	80	response = emi62_writememory (dev, CPUCS_REG, &reset_bit, 1, 0xa0);
	81	if (response < 0) {
	82	err("emi62: set_reset (%d) failed", reset_bit);
	83	}
	84	return response;
	85	}
	86
	87	#define FW_LOAD_SIZE 1023
	88
	89	static int emi62_load_firmware (struct usb_device *dev)
	90	{
b8e24bfa DW	91	const struct firmware *loader_fw = NULL;
	92	const struct firmware *bitstream_fw = NULL;
	93	const struct firmware *firmware_fw = NULL;
	94	const struct ihex_binrec *rec;
1da177e4 LT	95	int err;
1da177e4 LT	96	int i;
1da177e4 LT	97	__u32 addr; /* Address to write */
	98	__u8 *buf;
	99
	100	dev_dbg(&dev->dev, "load_firmware\n");
	101	buf = kmalloc(FW_LOAD_SIZE, GFP_KERNEL);
	102	if (!buf) {
441b62c1	103	err( "%s - error loading firmware: error = %d", __func__, -ENOMEM);
1da177e4 LT	104	err = -ENOMEM;
	105	goto wraperr;
	106	}
	107
b8e24bfa DW	108	err = request_ihex_firmware(&loader_fw, "emi62/loader.fw", &dev->dev);
	109	if (err)
	110	goto nofw;
	111
	112	err = request_ihex_firmware(&bitstream_fw, "emi62/bitstream.fw",
	113	&dev->dev);
	114	if (err)
	115	goto nofw;
	116
	117	err = request_ihex_firmware(&firmware_fw, FIRMWARE_FW, &dev->dev);
	118	if (err) {
	119	nofw:
	120	err( "%s - request_firmware() failed", __func__);
	121	goto wraperr;
	122	}
	123
1da177e4 LT	124	/* Assert reset (stop the CPU in the EMI) */
	125	err = emi62_set_reset(dev,1);
	126	if (err < 0) {
441b62c1	127	err("%s - error loading firmware: error = %d", __func__, err);
1da177e4 LT	128	goto wraperr;
	129	}
	130
b8e24bfa DW	131	rec = (const struct ihex_binrec *)loader_fw->data;
b8e24bfa DW	132
1da177e4	133	/* 1. We need to put the loader for the FPGA into the EZ-USB */
b8e24bfa DW	134	while (rec) {
	135	err = emi62_writememory(dev, be32_to_cpu(rec->addr),
	136	rec->data, be16_to_cpu(rec->len),
	137	ANCHOR_LOAD_INTERNAL);
1da177e4	138	if (err < 0) {
441b62c1	139	err("%s - error loading firmware: error = %d", __func__, err);
1da177e4 LT	140	goto wraperr;
1da177e4 LT	141	}
b8e24bfa	142	rec = ihex_next_binrec(rec);
1da177e4 LT	143	}
	144
	145	/* De-assert reset (let the CPU run) */
	146	err = emi62_set_reset(dev,0);
5919a43b	147	if (err < 0) {
441b62c1	148	err("%s - error loading firmware: error = %d", __func__, err);
5919a43b ON	149	goto wraperr;
5919a43b ON	150	}
16c23f7d	151	msleep(250); /* let device settle */
1da177e4 LT	152
	153	/* 2. We upload the FPGA firmware into the EMI
	154	* Note: collect up to 1023 (yes!) bytes and send them with
	155	* a single request. This is _much_ faster! */
b8e24bfa	156	rec = (const struct ihex_binrec *)bitstream_fw->data;
1da177e4 LT	157	do {
1da177e4 LT	158	i = 0;
b8e24bfa	159	addr = be32_to_cpu(rec->addr);
1da177e4 LT	160
1da177e4 LT	161	/* intel hex records are terminated with type 0 element */
b8e24bfa DW	162	while (rec && (i + be16_to_cpu(rec->len) < FW_LOAD_SIZE)) {
	163	memcpy(buf + i, rec->data, be16_to_cpu(rec->len));
	164	i += be16_to_cpu(rec->len);
	165	rec = ihex_next_binrec(rec);
1da177e4 LT	166	}
	167	err = emi62_writememory(dev, addr, buf, i, ANCHOR_LOAD_FPGA);
	168	if (err < 0) {
441b62c1	169	err("%s - error loading firmware: error = %d", __func__, err);
1da177e4 LT	170	goto wraperr;
	171	}
	172	} while (i > 0);
	173
	174	/* Assert reset (stop the CPU in the EMI) */
	175	err = emi62_set_reset(dev,1);
	176	if (err < 0) {
441b62c1	177	err("%s - error loading firmware: error = %d", __func__, err);
1da177e4 LT	178	goto wraperr;
	179	}
	180
	181	/* 3. We need to put the loader for the firmware into the EZ-USB (again...) */
b8e24bfa DW	182	for (rec = (const struct ihex_binrec *)loader_fw->data;
	183	rec; rec = ihex_next_binrec(rec)) {
	184	err = emi62_writememory(dev, be32_to_cpu(rec->addr),
	185	rec->data, be16_to_cpu(rec->len),
	186	ANCHOR_LOAD_INTERNAL);
1da177e4	187	if (err < 0) {
441b62c1	188	err("%s - error loading firmware: error = %d", __func__, err);
1da177e4 LT	189	goto wraperr;
	190	}
	191	}
	192
	193	/* De-assert reset (let the CPU run) */
	194	err = emi62_set_reset(dev,0);
	195	if (err < 0) {
441b62c1	196	err("%s - error loading firmware: error = %d", __func__, err);
1da177e4 LT	197	goto wraperr;
1da177e4 LT	198	}
16c23f7d	199	msleep(250); /* let device settle */
1da177e4 LT	200
	201	/* 4. We put the part of the firmware that lies in the external RAM into the EZ-USB */
	202
b8e24bfa DW	203	for (rec = (const struct ihex_binrec *)firmware_fw->data;
	204	rec; rec = ihex_next_binrec(rec)) {
	205	if (!INTERNAL_RAM(be32_to_cpu(rec->addr))) {
	206	err = emi62_writememory(dev, be32_to_cpu(rec->addr),
	207	rec->data, be16_to_cpu(rec->len),
	208	ANCHOR_LOAD_EXTERNAL);
1da177e4	209	if (err < 0) {
441b62c1	210	err("%s - error loading firmware: error = %d", __func__, err);
1da177e4 LT	211	goto wraperr;
	212	}
	213	}
	214	}
b8e24bfa	215
1da177e4 LT	216	/* Assert reset (stop the CPU in the EMI) */
	217	err = emi62_set_reset(dev,1);
	218	if (err < 0) {
441b62c1	219	err("%s - error loading firmware: error = %d", __func__, err);
1da177e4 LT	220	goto wraperr;
	221	}
	222
b8e24bfa DW	223	for (rec = (const struct ihex_binrec *)firmware_fw->data;
	224	rec; rec = ihex_next_binrec(rec)) {
	225	if (INTERNAL_RAM(be32_to_cpu(rec->addr))) {
	226	err = emi62_writememory(dev, be32_to_cpu(rec->addr),
	227	rec->data, be16_to_cpu(rec->len),
	228	ANCHOR_LOAD_EXTERNAL);
1da177e4	229	if (err < 0) {
441b62c1	230	err("%s - error loading firmware: error = %d", __func__, err);
1da177e4 LT	231	goto wraperr;
	232	}
	233	}
	234	}
b8e24bfa	235
1da177e4 LT	236	/* De-assert reset (let the CPU run) */
	237	err = emi62_set_reset(dev,0);
	238	if (err < 0) {
441b62c1	239	err("%s - error loading firmware: error = %d", __func__, err);
1da177e4 LT	240	goto wraperr;
1da177e4 LT	241	}
16c23f7d	242	msleep(250); /* let device settle */
1da177e4	243
b8e24bfa DW	244	release_firmware(loader_fw);
	245	release_firmware(bitstream_fw);
	246	release_firmware(firmware_fw);
	247
1da177e4 LT	248	kfree(buf);
	249
	250	/* return 1 to fail the driver inialization
	251	* and give real driver change to load */
	252	return 1;
	253
	254	wraperr:
b8e24bfa DW	255	release_firmware(loader_fw);
	256	release_firmware(bitstream_fw);
	257	release_firmware(firmware_fw);
	258
1da177e4 LT	259	kfree(buf);
	260	dev_err(&dev->dev, "Error\n");
	261	return err;
	262	}
	263
	264	static __devinitdata struct usb_device_id id_table [] = {
	265	{ USB_DEVICE(EMI62_VENDOR_ID, EMI62_PRODUCT_ID) },
	266	{ } /* Terminating entry */
	267	};
	268
	269	MODULE_DEVICE_TABLE (usb, id_table);
	270
	271	static int emi62_probe(struct usb_interface intf, const struct usb_device_id id)
	272	{
	273	struct usb_device *dev = interface_to_usbdev(intf);
	274	dev_dbg(&intf->dev, "emi62_probe\n");
	275
441b62c1	276	info("%s start", __func__);
1da177e4 LT	277
	278	emi62_load_firmware(dev);
	279
	280	/* do not return the driver context, let real audio driver do that */
	281	return -EIO;
	282	}
	283
	284	static void emi62_disconnect(struct usb_interface *intf)
	285	{
	286	}
	287
	288	static struct usb_driver emi62_driver = {
1da177e4 LT	289	.name = "emi62 - firmware loader",
	290	.probe = emi62_probe,
	291	.disconnect = emi62_disconnect,
	292	.id_table = id_table,
	293	};
	294
	295	static int __init emi62_init (void)
	296	{
	297	int retval;
	298	retval = usb_register (&emi62_driver);
	299	if (retval)
	300	printk(KERN_ERR "adi-emi: registration failed\n");
	301	return retval;
	302	}
	303
	304	static void __exit emi62_exit (void)
	305	{
	306	usb_deregister (&emi62_driver);
	307	}
	308
	309	module_init(emi62_init);
	310	module_exit(emi62_exit);
	311
96de0e25	312	MODULE_AUTHOR("Tapio Laxström");
1da177e4 LT	313	MODULE_DESCRIPTION("Emagic EMI 6\|2m firmware loader.");
	314	MODULE_LICENSE("GPL");
	315
b8e24bfa DW	316	MODULE_FIRMWARE("emi62/loader.fw");
	317	MODULE_FIRMWARE("emi62/bitstream.fw");
	318	MODULE_FIRMWARE(FIRMWARE_FW);
1da177e4 LT	319	/* vi:ai:syntax=c:sw=8:ts=8:tw=80
1da177e4 LT	320	*/