path: root/drivers/isdn/hisax/hfc_usb.c

/*
 * hfc_usb.c
 *
 * $Id: hfc_usb.c,v 2.3.2.24 2007/10/14 08:40:29 mbachem Exp $
 *
 * modular HiSax ISDN driver for Colognechip HFC-S USB chip
 *
 * Authors : Peter Sprenger (sprenger@moving-bytes.de)
 *           Martin Bachem (m.bachem@gmx.de, info@colognechip.com)
 *
 *           based on the first hfc_usb driver of
 *           Werner Cornelius (werner@isdn-development.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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * See Version Histroy at the bottom of this file
 *
 */

#include <linux/types.h>
#include <linux/stddef.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel_stat.h>
#include <linux/usb.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
#include "hisax.h"
#include "hisax_if.h"
#include "hfc_usb.h"

static const char *hfcusb_revision =
	"$Revision: 2.3.2.24 $ $Date: 2007/10/14 08:40:29 $ ";

/* Hisax debug support
 *  debug flags defined in hfc_usb.h as HFCUSB_DBG_[*]
 */
#define __debug_variable hfc_debug
#include "hisax_debug.h"
static u_int debug;
module_param(debug, uint, 0);
static int hfc_debug;


/* private vendor specific data */
typedef struct {
	__u8 led_scheme;	// led display scheme
	signed short led_bits[8];	// array of 8 possible LED bitmask settings
	char *vend_name;	// device name
} hfcsusb_vdata;

/* VID/PID device list */
static const struct usb_device_id hfcusb_idtab[] = {
	{
		USB_DEVICE(0x0959, 0x2bd0),
		.driver_info = (unsigned long) &((hfcsusb_vdata)
			{LED_OFF, {4, 0, 2, 1},
					"ISDN USB TA (Cologne Chip HFC-S USB based)"}),
	},
	{
		USB_DEVICE(0x0675, 0x1688),
		.driver_info = (unsigned long) &((hfcsusb_vdata)
			{LED_SCHEME1, {1, 2, 0, 0},
					"DrayTek miniVigor 128 USB ISDN TA"}),
	},
	{
		USB_DEVICE(0x07b0, 0x0007),
		.driver_info = (unsigned long) &((hfcsusb_vdata)
			{LED_SCHEME1, {0x80, -64, -32, -16},
					"Billion tiny USB ISDN TA 128"}),
	},
	{
		USB_DEVICE(0x0742, 0x2008),
		.driver_info = (unsigned long) &((hfcsusb_vdata)
			{LED_SCHEME1, {4, 0, 2, 1},
					"Stollmann USB TA"}),
	},
	{
		USB_DEVICE(0x0742, 0x2009),
		.driver_info = (unsigned long) &((hfcsusb_vdata)
			{LED_SCHEME1, {4, 0, 2, 1},
					"Aceex USB ISDN TA"}),
	},
	{
		USB_DEVICE(0x0742, 0x200A),
		.driver_info = (unsigned long) &((hfcsusb_vdata)
			{LED_SCHEME1, {4, 0, 2, 1},
					"OEM USB ISDN TA"}),
	},
	{
		USB_DEVICE(0x08e3, 0x0301),
		.driver_info = (unsigned long) &((hfcsusb_vdata)
			{LED_SCHEME1, {2, 0, 1, 4},
					"Olitec USB RNIS"}),
	},
	{
		USB_DEVICE(0x07fa, 0x0846),
		.driver_info = (unsigned long) &((hfcsusb_vdata)
			{LED_SCHEME1, {0x80, -64, -32, -16},
					"Bewan Modem RNIS USB"}),
	},
	{
		USB_DEVICE(0x07fa, 0x0847),
		.driver_info = (unsigned long) &((hfcsusb_vdata)
			{LED_SCHEME1, {0x80, -64, -32, -16},
					"Djinn Numeris USB"}),
	},
	{
		USB_DEVICE(0x07b0, 0x0006),
		.driver_info = (unsigned long) &((hfcsusb_vdata)
			{LED_SCHEME1, {0x80, -64, -32, -16},
					"Twister ISDN TA"}),
	},
	{
		USB_DEVICE(0x071d, 0x1005),
		.driver_info = (unsigned long) &((hfcsusb_vdata)
			{LED_SCHEME1, {0x02, 0, 0x01, 0x04},
					"Eicon DIVA USB 4.0"}),
	},
	{ }
};

/* structure defining input+output fifos (interrupt/bulk mode) */
struct usb_fifo;		/* forward definition */
typedef struct iso_urb_struct {
	struct urb *purb;
	__u8 buffer[ISO_BUFFER_SIZE];	/* buffer incoming/outgoing data */
	struct usb_fifo *owner_fifo;	/* pointer to owner fifo */
} iso_urb_struct;

struct hfcusb_data;		/* forward definition */

typedef struct usb_fifo {
	int fifonum;		/* fifo index attached to this structure */
	int active;		/* fifo is currently active */
	struct hfcusb_data *hfc;	/* pointer to main structure */
	int pipe;		/* address of endpoint */
	__u8 usb_packet_maxlen;	/* maximum length for usb transfer */
	unsigned int max_size;	/* maximum size of r