add idl4k kernel firmware version 1.13.0.105

kernel/drivers/char/pcmcia/Kconfig

@@ -0,0 +1,56 @@
+#
+# PCMCIA character device configuration
+#
+
+menu "PCMCIA character devices"
+	depends on HOTPLUG && PCMCIA!=n
+
+config SYNCLINK_CS
+	tristate "SyncLink PC Card support"
+	depends on PCMCIA
+	help
+	  Enable support for the SyncLink PC Card serial adapter, running
+	  asynchronous and HDLC communications up to 512Kbps. The port is
+	  selectable for RS-232, V.35, RS-449, RS-530, and X.21
+
+	  This driver may be built as a module ( = code which can be
+	  inserted in and removed from the running kernel whenever you want).
+	  The module will be called synclinkmp.  If you want to do that, say M
+	  here.
+
+config CARDMAN_4000
+	tristate "Omnikey Cardman 4000 support"
+	depends on PCMCIA
+	select BITREVERSE
+	help
+	  Enable support for the Omnikey Cardman 4000 PCMCIA Smartcard
+	  reader.
+
+	  This kernel driver requires additional userspace support, either
+	  by the vendor-provided PC/SC ifd_handler (http://www.omnikey.com/),
+	  or via the cm4000 backend of OpenCT (http://www.opensc.com/).
+
+config CARDMAN_4040
+	tristate "Omnikey CardMan 4040 support"
+	depends on PCMCIA
+	help
+	  Enable support for the Omnikey CardMan 4040 PCMCIA Smartcard
+	  reader.
+
+	  This card is basically a USB CCID device connected to a FIFO
+	  in I/O space.  To use the kernel driver, you will need either the
+	  PC/SC ifdhandler provided from the Omnikey homepage
+	  (http://www.omnikey.com/), or a current development version of OpenCT
+	  (http://www.opensc.org/).
+
+config IPWIRELESS
+	tristate "IPWireless 3G UMTS PCMCIA card support"
+	depends on PCMCIA && NETDEVICES
+	select PPP
+	help
+	  This is a driver for 3G UMTS PCMCIA card from IPWireless company. In
+	  some countries (for example Czech Republic, T-Mobile ISP) this card
+	  is shipped for service called UMTS 4G.
+
+endmenu
+

kernel/drivers/char/pcmcia/Makefile

@@ -0,0 +1,11 @@
+#
+# drivers/char/pcmcia/Makefile
+#
+# Makefile for the Linux PCMCIA char device drivers.
+#
+
+obj-y += ipwireless/
+
+obj-$(CONFIG_SYNCLINK_CS) += synclink_cs.o
+obj-$(CONFIG_CARDMAN_4000) += cm4000_cs.o
+obj-$(CONFIG_CARDMAN_4040) += cm4040_cs.o

kernel/drivers/char/pcmcia/cm4040_cs.c

@@ -0,0 +1,732 @@
+/*
+ * A driver for the Omnikey PCMCIA smartcard reader CardMan 4040
+ *
+ * (c) 2000-2004 Omnikey AG (http://www.omnikey.com/)
+ *
+ * (C) 2005-2006 Harald Welte <laforge@gnumonks.org>
+ * 	- add support for poll()
+ * 	- driver cleanup
+ * 	- add waitqueues
+ * 	- adhere to linux kernel coding style and policies
+ * 	- support 2.6.13 "new style" pcmcia interface
+ * 	- add class interface for udev device creation
+ *
+ * The device basically is a USB CCID compliant device that has been
+ * attached to an I/O-Mapped FIFO.
+ *
+ * All rights reserved, Dual BSD/GPL Licensed.
+ */
+
+/* #define PCMCIA_DEBUG 6 */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/delay.h>
+#include <linux/poll.h>
+#include <linux/smp_lock.h>
+#include <linux/wait.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/ds.h>
+
+#include "cm4040_cs.h"
+
+
+#ifdef PCMCIA_DEBUG
+#define reader_to_dev(x)	(&handle_to_dev(x->p_dev))
+static int pc_debug = PCMCIA_DEBUG;
+module_param(pc_debug, int, 0600);
+#define DEBUGP(n, rdr, x, args...) do { 				\
+	if (pc_debug >= (n)) 						\
+		dev_printk(KERN_DEBUG, reader_to_dev(rdr), "%s:" x, 	\
+			   __func__ , ##args); 			\
+	} while (0)
+#else
+#define DEBUGP(n, rdr, x, args...)
+#endif
+
+static char *version =
+"OMNIKEY CardMan 4040 v1.1.0gm5 - All bugs added by Harald Welte";
+
+#define	CCID_DRIVER_BULK_DEFAULT_TIMEOUT  	(150*HZ)
+#define	CCID_DRIVER_ASYNC_POWERUP_TIMEOUT 	(35*HZ)
+#define	CCID_DRIVER_MINIMUM_TIMEOUT 		(3*HZ)
+#define READ_WRITE_BUFFER_SIZE 512
+#define POLL_LOOP_COUNT				1000
+
+/* how often to poll for fifo status change */
+#define POLL_PERIOD 				msecs_to_jiffies(10)
+
+static void reader_release(struct pcmcia_device *link);
+
+static int major;
+static struct class *cmx_class;
+
+#define		BS_READABLE	0x01
+#define		BS_WRITABLE	0x02
+
+struct reader_dev {
+	struct pcmcia_device	*p_dev;
+	dev_node_t		node;
+	wait_queue_head_t	devq;
+	wait_queue_head_t	poll_wait;
+	wait_queue_head_t	read_wait;
+	wait_queue_head_t	write_wait;
+	unsigned long 	  	buffer_status;
+	unsigned long     	timeout;
+	unsigned char     	s_buf[READ_WRITE_BUFFER_SIZE];
+	unsigned char     	r_buf[READ_WRITE_BUFFER_SIZE];
+	struct timer_list 	poll_timer;
+};
+
+static struct pcmcia_device *dev_table[CM_MAX_DEV];
+
+#ifndef PCMCIA_DEBUG
+#define	xoutb	outb
+#define	xinb	inb
+#else
+static inline void xoutb(unsigned char val, unsigned short port)
+{
+	if (pc_debug >= 7)
+		printk(KERN_DEBUG "outb(val=%.2x,port=%.4x)\n", val, port);
+	outb(val, port);
+}
+
+static inline unsigned char xinb(unsigned short port)
+{
+	unsigned char val;
+
+	val = inb(port);
+	if (pc_debug >= 7)
+		printk(KERN_DEBUG "%.2x=inb(%.4x)\n", val, port);
+	return val;
+}
+#endif
+
+/* poll the device fifo status register.  not to be confused with
+ * the poll syscall. */
+static void cm4040_do_poll(unsigned long dummy)
+{
+	struct reader_dev *dev = (struct reader_dev *) dummy;
+	unsigned int obs = xinb(dev->p_dev->io.BasePort1
+				+ REG_OFFSET_BUFFER_STATUS);
+
+	if ((obs & BSR_BULK_IN_FULL)) {
+		set_bit(BS_READABLE, &dev->buffer_status);
+		DEBUGP(4, dev, "waking up read_wait\n");
+		wake_up_interruptible(&dev->read_wait);
+	} else
+		clear_bit(BS_READABLE, &dev->buffer_status);
+
+	if (!(obs & BSR_BULK_OUT_FULL)) {
+		set_bit(BS_WRITABLE, &dev->buffer_status);
+		DEBUGP(4, dev, "waking up write_wait\n");
+		wake_up_interruptible(&dev->write_wait);
+	} else
+		clear_bit(BS_WRITABLE, &dev->buffer_status);
+
+	if (dev->buffer_status)
+		wake_up_interruptible(&dev->poll_wait);
+
+	mod_timer(&dev->poll_timer, jiffies + POLL_PERIOD);
+}
+
+static void cm4040_stop_poll(struct reader_dev *dev)
+{
+	del_timer_sync(&dev->poll_timer);
+}
+
+static int wait_for_bulk_out_ready(struct reader_dev *dev)
+{
+	int i, rc;
+	int iobase = dev->p_dev->io.BasePort1;
+
+	for (i = 0; i < POLL_LOOP_COUNT; i++) {
+		if ((xinb(iobase + REG_OFFSET_BUFFER_STATUS)
+		    & BSR_BULK_OUT_FULL) == 0) {
+			DEBUGP(4, dev, "BulkOut empty (i=%d)\n", i);
+			return 1;
+		}
+	}
+
+	DEBUGP(4, dev, "wait_event_interruptible_timeout(timeout=%ld\n",
+		dev->timeout);
+	rc = wait_event_interruptible_timeout(dev->write_wait,
+					      test_and_clear_bit(BS_WRITABLE,
+						       &dev->buffer_status),
+					      dev->timeout);
+
+	if (rc > 0)
+		DEBUGP(4, dev, "woke up: BulkOut empty\n");
+	else if (rc == 0)
+		DEBUGP(4, dev, "woke up: BulkOut full, returning 0 :(\n");
+	else if (rc < 0)
+		DEBUGP(4, dev, "woke up: signal arrived\n");
+
+	return rc;
+}
+
+/* Write to Sync Control Register */
+static int write_sync_reg(unsigned char val, struct reader_dev *dev)
+{
+	int iobase = dev->p_dev->io.BasePort1;
+	int rc;
+
+	rc = wait_for_bulk_out_ready(dev);
+	if (rc <= 0)
+		return rc;
+
+	xoutb(val, iobase + REG_OFFSET_SYNC_CONTROL);
+	rc = wait_for_bulk_out_ready(dev);
+	if (rc <= 0)
+		return rc;
+
+	return 1;
+}
+
+static int wait_for_bulk_in_ready(struct reader_dev *dev)
+{
+	int i, rc;
+	int iobase = dev->p_dev->io.BasePort1;
+
+	for (i = 0; i < POLL_LOOP_COUNT; i++) {
+		if ((xinb(iobase + REG_OFFSET_BUFFER_STATUS)
+		    & BSR_BULK_IN_FULL) == BSR_BULK_IN_FULL) {
+			DEBUGP(3, dev, "BulkIn full (i=%d)\n", i);
+			return 1;
+		}
+	}
+
+	DEBUGP(4, dev, "wait_event_interruptible_timeout(timeout=%ld\n",
+		dev->timeout);
+	rc = wait_event_interruptible_timeout(dev->read_wait,
+					      test_and_clear_bit(BS_READABLE,
+						 	&dev->buffer_status),
+					      dev->timeout);
+	if (rc > 0)
+		DEBUGP(4, dev, "woke up: BulkIn full\n");
+	else if (rc == 0)
+		DEBUGP(4, dev, "woke up: BulkIn not full, returning 0 :(\n");
+	else if (rc < 0)
+		DEBUGP(4, dev, "woke up: signal arrived\n");
+
+	return rc;
+}
+
+static ssize_t cm4040_read(struct file *filp, char __user *buf,
+			size_t count, loff_t *ppos)
+{
+	struct reader_dev *dev = filp->private_data;
+	int iobase = dev->p_dev->io.BasePort1;
+	size_t bytes_to_read;
+	unsigned long i;
+	size_t min_bytes_to_read;
+	int rc;
+	unsigned char uc;
+
+	DEBUGP(2, dev, "-> cm4040_read(%s,%d)\n", current->comm, current->pid);
+
+	if (count == 0)
+		return 0;
+
+	if (count < 10)
+		return -EFAULT;
+
+	if (filp->f_flags & O_NONBLOCK) {
+		DEBUGP(4, dev, "filep->f_flags O_NONBLOCK set\n");
+		DEBUGP(2, dev, "<- cm4040_read (failure)\n");
+		return -EAGAIN;
+	}
+
+	if (!pcmcia_dev_present(dev->p_dev))
+		return -ENODEV;
+
+	for (i = 0; i < 5; i++) {
+		rc = wait_for_bulk_in_ready(dev);
+		if (rc <= 0) {
+			DEBUGP(5, dev, "wait_for_bulk_in_ready rc=%.2x\n", rc);
+			DEBUGP(2, dev, "<- cm4040_read (failed)\n");
+			if (rc == -ERESTARTSYS)
+				return rc;
+			return -EIO;
+		}
+	  	dev->r_buf[i] = xinb(iobase + REG_OFFSET_BULK_IN);
+#ifdef PCMCIA_DEBUG
+		if (pc_debug >= 6)
+			printk(KERN_DEBUG "%lu:%2x ", i, dev->r_buf[i]);
+	}
+	printk("\n");
+#else
+	}
+#endif
+
+	bytes_to_read = 5 + le32_to_cpu(*(__le32 *)&dev->r_buf[1]);
+
+	DEBUGP(6, dev, "BytesToRead=%lu\n", bytes_to_read);
+
+	min_bytes_to_read = min(count, bytes_to_read + 5);
+	min_bytes_to_read = min_t(size_t, min_bytes_to_read, READ_WRITE_BUFFER_SIZE);
+
+	DEBUGP(6, dev, "Min=%lu\n", min_bytes_to_read);
+
+	for (i = 0; i < (min_bytes_to_read-5); i++) {
+		rc = wait_for_bulk_in_ready(dev);
+		if (rc <= 0) {
+			DEBUGP(5, dev, "wait_for_bulk_in_ready rc=%.2x\n", rc);
+			DEBUGP(2, dev, "<- cm4040_read (failed)\n");
+			if (rc == -ERESTARTSYS)
+				return rc;
+			return -EIO;
+		}
+		dev->r_buf[i+5] = xinb(iobase + REG_OFFSET_BULK_IN);
+#ifdef PCMCIA_DEBUG
+		if (pc_debug >= 6)
+			printk(KERN_DEBUG "%lu:%2x ", i, dev->r_buf[i]);
+	}
+	printk("\n");
+#else
+	}
+#endif
+
+	*ppos = min_bytes_to_read;
+	if (copy_to_user(buf, dev->r_buf, min_bytes_to_read))
+		return -EFAULT;
+
+	rc = wait_for_bulk_in_ready(dev);
+	if (rc <= 0) {
+		DEBUGP(5, dev, "wait_for_bulk_in_ready rc=%.2x\n", rc);
+		DEBUGP(2, dev, "<- cm4040_read (failed)\n");
+		if (rc == -ERESTARTSYS)
+			return rc;
+		return -EIO;
+	}
+
+	rc = write_sync_reg(SCR_READER_TO_HOST_DONE, dev);
+	if (rc <= 0) {
+		DEBUGP(5, dev, "write_sync_reg c=%.2x\n", rc);
+		DEBUGP(2, dev, "<- cm4040_read (failed)\n");
+		if (rc == -ERESTARTSYS)
+			return rc;
+		else
+			return -EIO;
+	}
+
+	uc = xinb(iobase + REG_OFFSET_BULK_IN);
+
+	DEBUGP(2, dev, "<- cm4040_read (successfully)\n");
+	return min_bytes_to_read;
+}
+
+static ssize_t cm4040_write(struct file *filp, const char __user *buf,
+			 size_t count, loff_t *ppos)
+{
+	struct reader_dev *dev = filp->private_data;
+	int iobase = dev->p_dev->io.BasePort1;
+	ssize_t rc;
+	int i;
+	unsigned int bytes_to_write;
+
+	DEBUGP(2, dev, "-> cm4040_write(%s,%d)\n", current->comm, current->pid);
+
+	if (count == 0) {
+		DEBUGP(2, dev, "<- cm4040_write empty read (successfully)\n");
+		return 0;
+	}
+
+	if ((count < 5) || (count > READ_WRITE_BUFFER_SIZE)) {
+		DEBUGP(2, dev, "<- cm4040_write buffersize=%Zd < 5\n", count);
+		return -EIO;
+	}
+
+	if (filp->f_flags & O_NONBLOCK) {
+		DEBUGP(4, dev, "filep->f_flags O_NONBLOCK set\n");
+		DEBUGP(4, dev, "<- cm4040_write (failure)\n");
+		return -EAGAIN;
+	}
+
+	if (!pcmcia_dev_present(dev->p_dev))
+		return -ENODEV;
+
+	bytes_to_write = count;
+	if (copy_from_user(dev->s_buf, buf, bytes_to_write))
+		return -EFAULT;
+
+	switch (dev->s_buf[0]) {
+		case CMD_PC_TO_RDR_XFRBLOCK:
+		case CMD_PC_TO_RDR_SECURE:
+		case CMD_PC_TO_RDR_TEST_SECURE:
+		case CMD_PC_TO_RDR_OK_SECURE:
+			dev->timeout = CCID_DRIVER_BULK_DEFAULT_TIMEOUT;
+			break;
+
+		case CMD_PC_TO_RDR_ICCPOWERON:
+			dev->timeout = CCID_DRIVER_ASYNC_POWERUP_TIMEOUT;
+			break;
+
+		case CMD_PC_TO_RDR_GETSLOTSTATUS:
+		case CMD_PC_TO_RDR_ICCPOWEROFF:
+		case CMD_PC_TO_RDR_GETPARAMETERS:
+		case CMD_PC_TO_RDR_RESETPARAMETERS:
+		case CMD_PC_TO_RDR_SETPARAMETERS:
+		case CMD_PC_TO_RDR_ESCAPE:
+		case CMD_PC_TO_RDR_ICCCLOCK:
+		default:
+			dev->timeout = CCID_DRIVER_MINIMUM_TIMEOUT;
+			break;
+	}
+
+	rc = write_sync_reg(SCR_HOST_TO_READER_START, dev);
+	if (rc <= 0) {
+		DEBUGP(5, dev, "write_sync_reg c=%.2Zx\n", rc);
+		DEBUGP(2, dev, "<- cm4040_write (failed)\n");
+		if (rc == -ERESTARTSYS)
+			return rc;
+		else
+			return -EIO;
+	}
+
+	DEBUGP(4, dev, "start \n");
+
+	for (i = 0; i < bytes_to_write; i++) {
+		rc = wait_for_bulk_out_ready(dev);
+		if (rc <= 0) {
+			DEBUGP(5, dev, "wait_for_bulk_out_ready rc=%.2Zx\n",
+			       rc);
+			DEBUGP(2, dev, "<- cm4040_write (failed)\n");
+			if (rc == -ERESTARTSYS)
+				return rc;
+			else
+				return -EIO;
+		}
+
+		xoutb(dev->s_buf[i],iobase + REG_OFFSET_BULK_OUT);
+	}
+	DEBUGP(4, dev, "end\n");
+
+	rc = write_sync_reg(SCR_HOST_TO_READER_DONE, dev);
+
+	if (rc <= 0) {
+		DEBUGP(5, dev, "write_sync_reg c=%.2Zx\n", rc);
+		DEBUGP(2, dev, "<- cm4040_write (failed)\n");
+		if (rc == -ERESTARTSYS)
+			return rc;
+		else
+			return -EIO;
+	}
+
+	DEBUGP(2, dev, "<- cm4040_write (successfully)\n");
+	return count;
+}
+
+static unsigned int cm4040_poll(struct file *filp, poll_table *wait)
+{
+	struct reader_dev *dev = filp->private_data;
+	unsigned int mask = 0;
+
+	poll_wait(filp, &dev->poll_wait, wait);
+
+	if (test_and_clear_bit(BS_READABLE, &dev->buffer_status))
+		mask |= POLLIN | POLLRDNORM;
+	if (test_and_clear_bit(BS_WRITABLE, &dev->buffer_status))
+		mask |= POLLOUT | POLLWRNORM;
+
+	DEBUGP(2, dev, "<- cm4040_poll(%u)\n", mask);
+
+	return mask;
+}
+
+static int cm4040_open(struct inode *inode, struct file *filp)
+{
+	struct reader_dev *dev;
+	struct pcmcia_device *link;
+	int minor = iminor(inode);
+	int ret;
+
+	if (minor >= CM_MAX_DEV)
+		return -ENODEV;
+
+	lock_kernel();
+	link = dev_table[minor];
+	if (link == NULL || !pcmcia_dev_present(link)) {
+		ret = -ENODEV;
+		goto out;
+	}
+
+	if (link->open) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+	dev = link->priv;
+	filp->private_data = dev;
+
+	if (filp->f_flags & O_NONBLOCK) {
+		DEBUGP(4, dev, "filep->f_flags O_NONBLOCK set\n");
+		ret = -EAGAIN;
+		goto out;
+	}
+
+	link->open = 1;
+
+	dev->poll_timer.data = (unsigned long) dev;
+	mod_timer(&dev->poll_timer, jiffies + POLL_PERIOD);
+
+	DEBUGP(2, dev, "<- cm4040_open (successfully)\n");
+	ret = nonseekable_open(inode, filp);
+out:
+	unlock_kernel();
+	return ret;
+}
+
+static int cm4040_close(struct inode *inode, struct file *filp)
+{
+	struct reader_dev *dev = filp->private_data;
+	struct pcmcia_device *link;
+	int minor = iminor(inode);
+
+	DEBUGP(2, dev, "-> cm4040_close(maj/min=%d.%d)\n", imajor(inode),
+	      iminor(inode));
+
+	if (minor >= CM_MAX_DEV)
+		return -ENODEV;
+
+	link = dev_table[minor];
+	if (link == NULL)
+		return -ENODEV;
+
+	cm4040_stop_poll(dev);
+
+	link->open = 0;
+	wake_up(&dev->devq);
+
+	DEBUGP(2, dev, "<- cm4040_close\n");
+	return 0;
+}
+
+static void cm4040_reader_release(struct pcmcia_device *link)
+{
+	struct reader_dev *dev = link->priv;
+
+	DEBUGP(3, dev, "-> cm4040_reader_release\n");
+	while (link->open) {
+		DEBUGP(3, dev, KERN_INFO MODULE_NAME ": delaying release "
+		       "until process has terminated\n");
+ 		wait_event(dev->devq, (link->open == 0));
+	}
+	DEBUGP(3, dev, "<- cm4040_reader_release\n");
+	return;
+}
+
+static int cm4040_config_check(struct pcmcia_device *p_dev,
+			       cistpl_cftable_entry_t *cfg,
+			       cistpl_cftable_entry_t *dflt,
+			       unsigned int vcc,
+			       void *priv_data)
+{
+	int rc;
+	if (!cfg->io.nwin)
+		return -ENODEV;
+
+	/* Get the IOaddr */
+	p_dev->io.BasePort1 = cfg->io.win[0].base;
+	p_dev->io.NumPorts1 = cfg->io.win[0].len;
+	p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
+	if (!(cfg->io.flags & CISTPL_IO_8BIT))
+		p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
+	if (!(cfg->io.flags & CISTPL_IO_16BIT))
+		p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+	p_dev->io.IOAddrLines = cfg->io.flags & CISTPL_IO_LINES_MASK;
+
+	rc = pcmcia_request_io(p_dev, &p_dev->io);
+	dev_printk(KERN_INFO, &handle_to_dev(p_dev),
+		   "pcmcia_request_io returned 0x%x\n", rc);
+	return rc;
+}
+
+
+static int reader_config(struct pcmcia_device *link, int devno)
+{
+	struct reader_dev *dev;
+	int fail_rc;
+
+	link->io.BasePort2 = 0;
+	link->io.NumPorts2 = 0;
+	link->io.Attributes2 = 0;
+
+	if (pcmcia_loop_config(link, cm4040_config_check, NULL))
+		goto cs_release;
+
+	link->conf.IntType = 00000002;
+
+	fail_rc = pcmcia_request_configuration(link, &link->conf);
+	if (fail_rc != 0) {
+		dev_printk(KERN_INFO, &handle_to_dev(link),
+			   "pcmcia_request_configuration failed 0x%x\n",
+			   fail_rc);
+		goto cs_release;
+	}
+
+	dev = link->priv;
+	sprintf(dev->node.dev_name, DEVICE_NAME "%d", devno);
+	dev->node.major = major;
+	dev->node.minor = devno;
+	dev->node.next = &dev->node;
+
+	DEBUGP(2, dev, "device " DEVICE_NAME "%d at 0x%.4x-0x%.4x\n", devno,
+	      link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1);
+	DEBUGP(2, dev, "<- reader_config (succ)\n");
+
+	return 0;
+
+cs_release:
+	reader_release(link);
+	return -ENODEV;
+}
+
+static void reader_release(struct pcmcia_device *link)
+{
+	cm4040_reader_release(link);
+	pcmcia_disable_device(link);
+}
+
+static int reader_probe(struct pcmcia_device *link)
+{
+	struct reader_dev *dev;
+	int i, ret;
+
+	for (i = 0; i < CM_MAX_DEV; i++) {
+		if (dev_table[i] == NULL)
+			break;
+	}
+
+	if (i == CM_MAX_DEV)
+		return -ENODEV;
+
+	dev = kzalloc(sizeof(struct reader_dev), GFP_KERNEL);
+	if (dev == NULL)
+		return -ENOMEM;
+
+	dev->timeout = CCID_DRIVER_MINIMUM_TIMEOUT;
+	dev->buffer_status = 0;
+
+	link->priv = dev;
+	dev->p_dev = link;
+
+	link->conf.IntType = INT_MEMORY_AND_IO;
+	dev_table[i] = link;
+
+	init_waitqueue_head(&dev->devq);
+	init_waitqueue_head(&dev->poll_wait);
+	init_waitqueue_head(&dev->read_wait);
+	init_waitqueue_head(&dev->write_wait);
+	setup_timer(&dev->poll_timer, cm4040_do_poll, 0);
+
+	ret = reader_config(link, i);
+	if (ret) {
+		dev_table[i] = NULL;
+		kfree(dev);
+		return ret;
+	}
+
+	device_create(cmx_class, NULL, MKDEV(major, i), NULL, "cmx%d", i);
+
+	return 0;
+}
+
+static void reader_detach(struct pcmcia_device *link)
+{
+	struct reader_dev *dev = link->priv;
+	int devno;
+
+	/* find device */
+	for (devno = 0; devno < CM_MAX_DEV; devno++) {
+		if (dev_table[devno] == link)
+			break;
+	}
+	if (devno == CM_MAX_DEV)
+		return;
+
+	reader_release(link);
+
+	dev_table[devno] = NULL;
+	kfree(dev);
+
+	device_destroy(cmx_class, MKDEV(major, devno));
+
+	return;
+}
+
+static const struct file_operations reader_fops = {
+	.owner		= THIS_MODULE,
+	.read		= cm4040_read,
+	.write		= cm4040_write,
+	.open		= cm4040_open,
+	.release	= cm4040_close,
+	.poll		= cm4040_poll,
+};
+
+static struct pcmcia_device_id cm4040_ids[] = {
+	PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0200),
+	PCMCIA_DEVICE_PROD_ID12("OMNIKEY", "CardMan 4040",
+				0xE32CDD8C, 0x8F23318B),
+	PCMCIA_DEVICE_NULL,
+};
+MODULE_DEVICE_TABLE(pcmcia, cm4040_ids);
+
+static struct pcmcia_driver reader_driver = {
+  	.owner		= THIS_MODULE,
+  	.drv		= {
+		.name	= "cm4040_cs",
+	},
+	.probe		= reader_probe,
+	.remove		= reader_detach,
+	.id_table	= cm4040_ids,
+};
+
+static int __init cm4040_init(void)
+{
+	int rc;
+
+	printk(KERN_INFO "%s\n", version);
+	cmx_class = class_create(THIS_MODULE, "cardman_4040");
+	if (IS_ERR(cmx_class))
+		return PTR_ERR(cmx_class);
+
+	major = register_chrdev(0, DEVICE_NAME, &reader_fops);
+	if (major < 0) {
+		printk(KERN_WARNING MODULE_NAME
+			": could not get major number\n");
+		class_destroy(cmx_class);
+		return major;
+	}
+
+	rc = pcmcia_register_driver(&reader_driver);
+	if (rc < 0) {
+		unregister_chrdev(major, DEVICE_NAME);
+		class_destroy(cmx_class);
+		return rc;
+	}
+
+	return 0;
+}
+
+static void __exit cm4040_exit(void)
+{
+	printk(KERN_INFO MODULE_NAME ": unloading\n");
+	pcmcia_unregister_driver(&reader_driver);
+	unregister_chrdev(major, DEVICE_NAME);
+	class_destroy(cmx_class);
+}
+
+module_init(cm4040_init);
+module_exit(cm4040_exit);
+MODULE_LICENSE("Dual BSD/GPL");

kernel/drivers/char/pcmcia/cm4040_cs.h

@@ -0,0 +1,47 @@
+#ifndef	_CM4040_H_
+#define	_CM4040_H_
+
+#define	CM_MAX_DEV		4
+
+#define	DEVICE_NAME		"cmx"
+#define	MODULE_NAME		"cm4040_cs"
+
+#define REG_OFFSET_BULK_OUT      0
+#define REG_OFFSET_BULK_IN       0
+#define REG_OFFSET_BUFFER_STATUS 1
+#define REG_OFFSET_SYNC_CONTROL  2
+
+#define BSR_BULK_IN_FULL  0x02
+#define BSR_BULK_OUT_FULL 0x01
+
+#define SCR_HOST_TO_READER_START 0x80
+#define SCR_ABORT                0x40
+#define SCR_EN_NOTIFY            0x20
+#define SCR_ACK_NOTIFY           0x10
+#define SCR_READER_TO_HOST_DONE  0x08
+#define SCR_HOST_TO_READER_DONE  0x04
+#define SCR_PULSE_INTERRUPT      0x02
+#define SCR_POWER_DOWN           0x01
+
+
+#define  CMD_PC_TO_RDR_ICCPOWERON       0x62
+#define  CMD_PC_TO_RDR_GETSLOTSTATUS    0x65
+#define  CMD_PC_TO_RDR_ICCPOWEROFF      0x63
+#define  CMD_PC_TO_RDR_SECURE           0x69
+#define  CMD_PC_TO_RDR_GETPARAMETERS    0x6C
+#define  CMD_PC_TO_RDR_RESETPARAMETERS  0x6D
+#define  CMD_PC_TO_RDR_SETPARAMETERS    0x61
+#define  CMD_PC_TO_RDR_XFRBLOCK         0x6F
+#define  CMD_PC_TO_RDR_ESCAPE           0x6B
+#define  CMD_PC_TO_RDR_ICCCLOCK         0x6E
+#define  CMD_PC_TO_RDR_TEST_SECURE      0x74
+#define  CMD_PC_TO_RDR_OK_SECURE        0x89
+
+
+#define  CMD_RDR_TO_PC_SLOTSTATUS         0x81
+#define  CMD_RDR_TO_PC_DATABLOCK          0x80
+#define  CMD_RDR_TO_PC_PARAMETERS         0x82
+#define  CMD_RDR_TO_PC_ESCAPE             0x83
+#define  CMD_RDR_TO_PC_OK_SECURE          0x89
+
+#endif	/* _CM4040_H_ */

kernel/drivers/char/pcmcia/ipwireless/Makefile

@@ -0,0 +1,10 @@
+#
+# drivers/char/pcmcia/ipwireless/Makefile
+#
+# Makefile for the IPWireless driver
+#
+
+obj-$(CONFIG_IPWIRELESS) += ipwireless.o
+
+ipwireless-objs := hardware.o main.o network.o tty.o
+

kernel/drivers/char/pcmcia/ipwireless/hardware.h

@@ -0,0 +1,62 @@
+/*
+ * IPWireless 3G PCMCIA Network Driver
+ *
+ * Original code
+ *   by Stephen Blackheath <stephen@blacksapphire.com>,
+ *      Ben Martel <benm@symmetric.co.nz>
+ *
+ * Copyrighted as follows:
+ *   Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
+ *
+ * Various driver changes and rewrites, port to new kernels
+ *   Copyright (C) 2006-2007 Jiri Kosina
+ *
+ * Misc code cleanups and updates
+ *   Copyright (C) 2007 David Sterba
+ */
+
+#ifndef _IPWIRELESS_CS_HARDWARE_H_
+#define _IPWIRELESS_CS_HARDWARE_H_
+
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+
+#define IPW_CONTROL_LINE_CTS 0x0001
+#define IPW_CONTROL_LINE_DCD 0x0002
+#define IPW_CONTROL_LINE_DSR 0x0004
+#define IPW_CONTROL_LINE_RI  0x0008
+#define IPW_CONTROL_LINE_DTR 0x0010
+#define IPW_CONTROL_LINE_RTS 0x0020
+
+struct ipw_hardware;
+struct ipw_network;
+
+struct ipw_hardware *ipwireless_hardware_create(void);
+void ipwireless_hardware_free(struct ipw_hardware *hw);
+irqreturn_t ipwireless_interrupt(int irq, void *dev_id);
+int ipwireless_set_DTR(struct ipw_hardware *hw, unsigned int channel_idx,
+		int state);
+int ipwireless_set_RTS(struct ipw_hardware *hw, unsigned int channel_idx,
+		int state);
+int ipwireless_send_packet(struct ipw_hardware *hw,
+			    unsigned int channel_idx,
+			    const unsigned char *data,
+			    unsigned int length,
+			    void (*packet_sent_callback) (void *cb,
+							  unsigned int length),
+			    void *sent_cb_data);
+void ipwireless_associate_network(struct ipw_hardware *hw,
+		struct ipw_network *net);
+void ipwireless_stop_interrupts(struct ipw_hardware *hw);
+void ipwireless_init_hardware_v1(struct ipw_hardware *hw,
+				 unsigned int base_port,
+				 void __iomem *attr_memory,
+				 void __iomem *common_memory,
+				 int is_v2_card,
+				 void (*reboot_cb) (void *data),
+				 void *reboot_cb_data);
+void ipwireless_init_hardware_v2_v3(struct ipw_hardware *hw);
+void ipwireless_sleep(unsigned int tenths);
+
+#endif

kernel/drivers/char/pcmcia/ipwireless/main.c

@@ -0,0 +1,500 @@
+/*
+ * IPWireless 3G PCMCIA Network Driver
+ *
+ * Original code
+ *   by Stephen Blackheath <stephen@blacksapphire.com>,
+ *      Ben Martel <benm@symmetric.co.nz>
+ *
+ * Copyrighted as follows:
+ *   Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
+ *
+ * Various driver changes and rewrites, port to new kernels
+ *   Copyright (C) 2006-2007 Jiri Kosina
+ *
+ * Misc code cleanups and updates
+ *   Copyright (C) 2007 David Sterba
+ */
+
+#include "hardware.h"
+#include "network.h"
+#include "main.h"
+#include "tty.h"
+
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include <pcmcia/cisreg.h>
+#include <pcmcia/device_id.h>
+#include <pcmcia/ss.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/cs.h>
+
+static struct pcmcia_device_id ipw_ids[] = {
+	PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0100),
+	PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0200),
+	PCMCIA_DEVICE_NULL
+};
+MODULE_DEVICE_TABLE(pcmcia, ipw_ids);
+
+static void ipwireless_detach(struct pcmcia_device *link);
+
+/*
+ * Module params
+ */
+/* Debug mode: more verbose, print sent/recv bytes */
+int ipwireless_debug;
+int ipwireless_loopback;
+int ipwireless_out_queue = 10;
+
+module_param_named(debug, ipwireless_debug, int, 0);
+module_param_named(loopback, ipwireless_loopback, int, 0);
+module_param_named(out_queue, ipwireless_out_queue, int, 0);
+MODULE_PARM_DESC(debug, "switch on debug messages [0]");
+MODULE_PARM_DESC(loopback,
+		"debug: enable ras_raw channel [0]");
+MODULE_PARM_DESC(out_queue, "debug: set size of outgoing PPP queue [10]");
+
+/* Executes in process context. */
+static void signalled_reboot_work(struct work_struct *work_reboot)
+{
+	struct ipw_dev *ipw = container_of(work_reboot, struct ipw_dev,
+			work_reboot);
+	struct pcmcia_device *link = ipw->link;
+	int ret = pcmcia_reset_card(link->socket);
+
+	if (ret != 0)
+		cs_error(link, ResetCard, ret);
+}
+
+static void signalled_reboot_callback(void *callback_data)
+{
+	struct ipw_dev *ipw = (struct ipw_dev *) callback_data;
+
+	/* Delegate to process context. */
+	schedule_work(&ipw->work_reboot);
+}
+
+static int config_ipwireless(struct ipw_dev *ipw)
+{
+	struct pcmcia_device *link = ipw->link;
+	int ret;
+	tuple_t tuple;
+	unsigned short buf[64];
+	cisparse_t parse;
+	unsigned short cor_value;
+	memreq_t memreq_attr_memory;
+	memreq_t memreq_common_memory;
+
+	ipw->is_v2_card = 0;
+
+	tuple.Attributes = 0;
+	tuple.TupleData = (cisdata_t *) buf;
+	tuple.TupleDataMax = sizeof(buf);
+	tuple.TupleOffset = 0;
+
+	tuple.DesiredTuple = RETURN_FIRST_TUPLE;
+
+	ret = pcmcia_get_first_tuple(link, &tuple);
+
+	while (ret == 0) {
+		ret = pcmcia_get_tuple_data(link, &tuple);
+
+		if (ret != 0) {
+			cs_error(link, GetTupleData, ret);
+			goto exit0;
+		}
+		ret = pcmcia_get_next_tuple(link, &tuple);
+	}
+
+	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+
+	ret = pcmcia_get_first_tuple(link, &tuple);
+
+	if (ret != 0) {
+		cs_error(link, GetFirstTuple, ret);
+		goto exit0;
+	}
+
+	ret = pcmcia_get_tuple_data(link, &tuple);
+
+	if (ret != 0) {
+		cs_error(link, GetTupleData, ret);
+		goto exit0;
+	}
+
+	ret = pcmcia_parse_tuple(&tuple, &parse);
+
+	if (ret != 0) {
+		cs_error(link, ParseTuple, ret);
+		goto exit0;
+	}
+
+	link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
+	link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
+	link->io.NumPorts1 = parse.cftable_entry.io.win[0].len;
+	link->io.IOAddrLines = 16;
+
+	link->irq.IRQInfo1 = parse.cftable_entry.irq.IRQInfo1;
+
+	/* 0x40 causes it to generate level mode interrupts. */
+	/* 0x04 enables IREQ pin. */
+	cor_value = parse.cftable_entry.index | 0x44;
+	link->conf.ConfigIndex = cor_value;
+
+	/* IRQ and I/O settings */
+	tuple.DesiredTuple = CISTPL_CONFIG;
+
+	ret = pcmcia_get_first_tuple(link, &tuple);
+
+	if (ret != 0) {
+		cs_error(link, GetFirstTuple, ret);
+		goto exit0;
+	}
+
+	ret = pcmcia_get_tuple_data(link, &tuple);
+
+	if (ret != 0) {
+		cs_error(link, GetTupleData, ret);
+		goto exit0;
+	}
+
+	ret = pcmcia_parse_tuple(&tuple, &parse);
+
+	if (ret != 0) {
+		cs_error(link, GetTupleData, ret);
+		goto exit0;
+	}
+	link->conf.Attributes = CONF_ENABLE_IRQ;
+	link->conf.ConfigBase = parse.config.base;
+	link->conf.Present = parse.config.rmask[0];
+	link->conf.IntType = INT_MEMORY_AND_IO;
+
+	link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
+	link->irq.Handler = ipwireless_interrupt;
+	link->irq.Instance = ipw->hardware;
+
+	ret = pcmcia_request_io(link, &link->io);
+
+	if (ret != 0) {
+		cs_error(link, RequestIO, ret);
+		goto exit0;
+	}
+
+	request_region(link->io.BasePort1, link->io.NumPorts1,
+			IPWIRELESS_PCCARD_NAME);
+
+	/* memory settings */
+
+	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+
+	ret = pcmcia_get_first_tuple(link, &tuple);
+
+	if (ret != 0) {
+		cs_error(link, GetFirstTuple, ret);
+		goto exit1;
+	}
+
+	ret = pcmcia_get_tuple_data(link, &tuple);
+
+	if (ret != 0) {
+		cs_error(link, GetTupleData, ret);
+		goto exit1;
+	}
+
+	ret = pcmcia_parse_tuple(&tuple, &parse);
+
+	if (ret != 0) {
+		cs_error(link, ParseTuple, ret);
+		goto exit1;
+	}
+
+	if (parse.cftable_entry.mem.nwin > 0) {
+		ipw->request_common_memory.Attributes =
+			WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
+		ipw->request_common_memory.Base =
+			parse.cftable_entry.mem.win[0].host_addr;
+		ipw->request_common_memory.Size = parse.cftable_entry.mem.win[0].len;
+		if (ipw->request_common_memory.Size < 0x1000)
+			ipw->request_common_memory.Size = 0x1000;
+		ipw->request_common_memory.AccessSpeed = 0;
+
+		ret = pcmcia_request_window(&link, &ipw->request_common_memory,
+				&ipw->handle_common_memory);
+
+		if (ret != 0) {
+			cs_error(link, RequestWindow, ret);
+			goto exit1;
+		}
+
+		memreq_common_memory.CardOffset =
+			parse.cftable_entry.mem.win[0].card_addr;
+		memreq_common_memory.Page = 0;
+
+		ret = pcmcia_map_mem_page(ipw->handle_common_memory,
+				&memreq_common_memory);
+
+		if (ret != 0) {
+			cs_error(link, MapMemPage, ret);
+			goto exit1;
+		}
+
+		ipw->is_v2_card =
+			parse.cftable_entry.mem.win[0].len == 0x100;
+
+		ipw->common_memory = ioremap(ipw->request_common_memory.Base,
+				ipw->request_common_memory.Size);
+		request_mem_region(ipw->request_common_memory.Base,
+				ipw->request_common_memory.Size, IPWIRELESS_PCCARD_NAME);
+
+		ipw->request_attr_memory.Attributes =
+			WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM | WIN_ENABLE;
+		ipw->request_attr_memory.Base = 0;
+		ipw->request_attr_memory.Size = 0;	/* this used to be 0x1000 */
+		ipw->request_attr_memory.AccessSpeed = 0;
+
+		ret = pcmcia_request_window(&link, &ipw->request_attr_memory,
+				&ipw->handle_attr_memory);
+
+		if (ret != 0) {
+			cs_error(link, RequestWindow, ret);
+			goto exit2;
+		}
+
+		memreq_attr_memory.CardOffset = 0;
+		memreq_attr_memory.Page = 0;
+
+		ret = pcmcia_map_mem_page(ipw->handle_attr_memory,
+				&memreq_attr_memory);
+
+		if (ret != 0) {
+			cs_error(link, MapMemPage, ret);
+			goto exit2;
+		}
+
+		ipw->attr_memory = ioremap(ipw->request_attr_memory.Base,
+				ipw->request_attr_memory.Size);
+		request_mem_region(ipw->request_attr_memory.Base, ipw->request_attr_memory.Size,
+				IPWIRELESS_PCCARD_NAME);
+	}
+
+	INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
+
+	ipwireless_init_hardware_v1(ipw->hardware, link->io.BasePort1,
+				    ipw->attr_memory, ipw->common_memory,
+				    ipw->is_v2_card, signalled_reboot_callback,
+				    ipw);
+
+	ret = pcmcia_request_irq(link, &link->irq);
+
+	if (ret != 0) {
+		cs_error(link, RequestIRQ, ret);
+		goto exit3;
+	}
+
+	printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
+			ipw->is_v2_card ? "V2/V3" : "V1");
+	printk(KERN_INFO IPWIRELESS_PCCARD_NAME
+			": I/O ports 0x%04x-0x%04x, irq %d\n",
+			(unsigned int) link->io.BasePort1,
+			(unsigned int) (link->io.BasePort1 +
+				link->io.NumPorts1 - 1),
+			(unsigned int) link->irq.AssignedIRQ);
+	if (ipw->attr_memory && ipw->common_memory)
+		printk(KERN_INFO IPWIRELESS_PCCARD_NAME
+			": attr memory 0x%08lx-0x%08lx, common memory 0x%08lx-0x%08lx\n",
+			ipw->request_attr_memory.Base,
+			ipw->request_attr_memory.Base
+			+ ipw->request_attr_memory.Size - 1,
+			ipw->request_common_memory.Base,
+			ipw->request_common_memory.Base
+			+ ipw->request_common_memory.Size - 1);
+
+	ipw->network = ipwireless_network_create(ipw->hardware);
+	if (!ipw->network)
+		goto exit3;
+
+	ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network,
+			ipw->nodes);
+	if (!ipw->tty)
+		goto exit3;
+
+	ipwireless_init_hardware_v2_v3(ipw->hardware);
+
+	/*
+	 * Do the RequestConfiguration last, because it enables interrupts.
+	 * Then we don't get any interrupts before we're ready for them.
+	 */
+	ret = pcmcia_request_configuration(link, &link->conf);
+
+	if (ret != 0) {
+		cs_error(link, RequestConfiguration, ret);
+		goto exit4;
+	}
+
+	link->dev_node = &ipw->nodes[0];
+
+	return 0;
+
+exit4:
+	pcmcia_disable_device(link);
+exit3:
+	if (ipw->attr_memory) {
+		release_mem_region(ipw->request_attr_memory.Base,
+				ipw->request_attr_memory.Size);
+		iounmap(ipw->attr_memory);
+		pcmcia_release_window(ipw->handle_attr_memory);
+		pcmcia_disable_device(link);
+	}
+exit2:
+	if (ipw->common_memory) {
+		release_mem_region(ipw->request_common_memory.Base,
+				ipw->request_common_memory.Size);
+		iounmap(ipw->common_memory);
+		pcmcia_release_window(ipw->handle_common_memory);
+	}
+exit1:
+	pcmcia_disable_device(link);
+exit0:
+	return -1;
+}
+
+static void release_ipwireless(struct ipw_dev *ipw)
+{
+	pcmcia_disable_device(ipw->link);
+
+	if (ipw->common_memory) {
+		release_mem_region(ipw->request_common_memory.Base,
+				ipw->request_common_memory.Size);
+		iounmap(ipw->common_memory);
+	}
+	if (ipw->attr_memory) {
+		release_mem_region(ipw->request_attr_memory.Base,
+				ipw->request_attr_memory.Size);
+		iounmap(ipw->attr_memory);
+	}
+	if (ipw->common_memory)
+		pcmcia_release_window(ipw->handle_common_memory);
+	if (ipw->attr_memory)
+		pcmcia_release_window(ipw->handle_attr_memory);
+
+	/* Break the link with Card Services */
+	pcmcia_disable_device(ipw->link);
+}
+
+/*
+ * ipwireless_attach() creates an "instance" of the driver, allocating
+ * local data structures for one device (one interface).  The device
+ * is registered with Card Services.
+ *
+ * The pcmcia_device structure is initialized, but we don't actually
+ * configure the card at this point -- we wait until we receive a
+ * card insertion event.
+ */
+static int ipwireless_attach(struct pcmcia_device *link)
+{
+	struct ipw_dev *ipw;
+	int ret;
+
+	ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL);
+	if (!ipw)
+		return -ENOMEM;
+
+	ipw->link = link;
+	link->priv = ipw;
+	link->irq.Instance = ipw;
+
+	/* Link this device into our device list. */
+	link->dev_node = &ipw->nodes[0];
+
+	ipw->hardware = ipwireless_hardware_create();
+	if (!ipw->hardware) {
+		kfree(ipw);
+		return -ENOMEM;
+	}
+	/* RegisterClient will call config_ipwireless */
+
+	ret = config_ipwireless(ipw);
+
+	if (ret != 0) {
+		cs_error(link, RegisterClient, ret);
+		ipwireless_detach(link);
+		return ret;
+	}
+
+	return 0;
+}
+
+/*
+ * This deletes a driver "instance".  The device is de-registered with
+ * Card Services.  If it has been released, all local data structures
+ * are freed.  Otherwise, the structures will be freed when the device
+ * is released.
+ */
+static void ipwireless_detach(struct pcmcia_device *link)
+{
+	struct ipw_dev *ipw = link->priv;
+
+	release_ipwireless(ipw);
+
+	if (ipw->tty != NULL)
+		ipwireless_tty_free(ipw->tty);
+	if (ipw->network != NULL)
+		ipwireless_network_free(ipw->network);
+	if (ipw->hardware != NULL)
+		ipwireless_hardware_free(ipw->hardware);
+	kfree(ipw);
+}
+
+static struct pcmcia_driver me = {
+	.owner		= THIS_MODULE,
+	.probe          = ipwireless_attach,
+	.remove         = ipwireless_detach,
+	.drv = { .name  = IPWIRELESS_PCCARD_NAME },
+	.id_table       = ipw_ids
+};
+
+/*
+ * Module insertion : initialisation of the module.
+ * Register the card with cardmgr...
+ */
+static int __init init_ipwireless(void)
+{
+	int ret;
+
+	printk(KERN_INFO IPWIRELESS_PCCARD_NAME " "
+	       IPWIRELESS_PCMCIA_VERSION " by " IPWIRELESS_PCMCIA_AUTHOR "\n");
+
+	ret = ipwireless_tty_init();
+	if (ret != 0)
+		return ret;
+
+	ret = pcmcia_register_driver(&me);
+	if (ret != 0)
+		ipwireless_tty_release();
+
+	return ret;
+}
+
+/*
+ * Module removal
+ */
+static void __exit exit_ipwireless(void)
+{
+	printk(KERN_INFO IPWIRELESS_PCCARD_NAME " "
+			IPWIRELESS_PCMCIA_VERSION " removed\n");
+
+	pcmcia_unregister_driver(&me);
+	ipwireless_tty_release();
+}
+
+module_init(init_ipwireless);
+module_exit(exit_ipwireless);
+
+MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR);
+MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION);
+MODULE_LICENSE("GPL");

kernel/drivers/char/pcmcia/ipwireless/main.h

@@ -0,0 +1,75 @@
+/*
+ * IPWireless 3G PCMCIA Network Driver
+ *
+ * Original code
+ *   by Stephen Blackheath <stephen@blacksapphire.com>,
+ *      Ben Martel <benm@symmetric.co.nz>
+ *
+ * Copyrighted as follows:
+ *   Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
+ *
+ * Various driver changes and rewrites, port to new kernels
+ *   Copyright (C) 2006-2007 Jiri Kosina
+ *
+ * Misc code cleanups and updates
+ *   Copyright (C) 2007 David Sterba
+ */
+
+#ifndef _IPWIRELESS_CS_H_
+#define _IPWIRELESS_CS_H_
+
+#include <linux/sched.h>
+#include <linux/types.h>
+
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ds.h>
+
+#include "hardware.h"
+
+#define IPWIRELESS_PCCARD_NAME		"ipwireless"
+#define IPWIRELESS_PCMCIA_VERSION	"1.1"
+#define IPWIRELESS_PCMCIA_AUTHOR        \
+	"Stephen Blackheath, Ben Martel, Jiri Kosina and David Sterba"
+
+#define IPWIRELESS_TX_QUEUE_SIZE  262144
+#define IPWIRELESS_RX_QUEUE_SIZE  262144
+
+#define IPWIRELESS_STATE_DEBUG
+
+struct ipw_hardware;
+struct ipw_network;
+struct ipw_tty;
+
+struct ipw_dev {
+	struct pcmcia_device *link;
+	int is_v2_card;
+
+	window_handle_t handle_attr_memory;
+	void __iomem *attr_memory;
+	win_req_t request_attr_memory;
+
+	window_handle_t handle_common_memory;
+	void __iomem *common_memory;
+	win_req_t request_common_memory;
+
+	dev_node_t nodes[2];
+	/* Reference to attribute memory, containing CIS data */
+	void *attribute_memory;
+
+	/* Hardware context */
+	struct ipw_hardware *hardware;
+	/* Network layer context */
+	struct ipw_network *network;
+	/* TTY device context */
+	struct ipw_tty *tty;
+	struct work_struct work_reboot;
+};
+
+/* Module parametres */
+extern int ipwireless_debug;
+extern int ipwireless_loopback;
+extern int ipwireless_out_queue;
+
+#endif

kernel/drivers/char/pcmcia/ipwireless/network.c

@@ -0,0 +1,506 @@
+/*
+ * IPWireless 3G PCMCIA Network Driver
+ *
+ * Original code
+ *   by Stephen Blackheath <stephen@blacksapphire.com>,
+ *      Ben Martel <benm@symmetric.co.nz>
+ *
+ * Copyrighted as follows:
+ *   Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
+ *
+ * Various driver changes and rewrites, port to new kernels
+ *   Copyright (C) 2006-2007 Jiri Kosina
+ *
+ * Misc code cleanups and updates
+ *   Copyright (C) 2007 David Sterba
+ */
+
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/mutex.h>
+#include <linux/netdevice.h>
+#include <linux/ppp_channel.h>
+#include <linux/ppp_defs.h>
+#include <linux/if_ppp.h>
+#include <linux/skbuff.h>
+
+#include "network.h"
+#include "hardware.h"
+#include "main.h"
+#include "tty.h"
+
+#define MAX_ASSOCIATED_TTYS 2
+
+#define SC_RCV_BITS     (SC_RCV_B7_1|SC_RCV_B7_0|SC_RCV_ODDP|SC_RCV_EVNP)
+
+struct ipw_network {
+	/* Hardware context, used for calls to hardware layer. */
+	struct ipw_hardware *hardware;
+	/* Context for kernel 'generic_ppp' functionality */
+	struct ppp_channel *ppp_channel;
+	/* tty context connected with IPW console */
+	struct ipw_tty *associated_ttys[NO_OF_IPW_CHANNELS][MAX_ASSOCIATED_TTYS];
+	/* True if ppp needs waking up once we're ready to xmit */
+	int ppp_blocked;
+	/* Number of packets queued up in hardware module. */
+	int outgoing_packets_queued;
+	/* Spinlock to avoid interrupts during shutdown */
+	spinlock_t lock;
+	struct mutex close_lock;
+
+	/* PPP ioctl data, not actually used anywere */
+	unsigned int flags;
+	unsigned int rbits;
+	u32 xaccm[8];
+	u32 raccm;
+	int mru;
+
+	int shutting_down;
+	unsigned int ras_control_lines;
+
+	struct work_struct work_go_online;
+	struct work_struct work_go_offline;
+};
+
+static void notify_packet_sent(void *callback_data, unsigned int packet_length)
+{
+	struct ipw_network *network = callback_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&network->lock, flags);
+	network->outgoing_packets_queued--;
+	if (network->ppp_channel != NULL) {
+		if (network->ppp_blocked) {
+			network->ppp_blocked = 0;
+			spin_unlock_irqrestore(&network->lock, flags);
+			ppp_output_wakeup(network->ppp_channel);
+			if (ipwireless_debug)
+				printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME
+				       ": ppp unblocked\n");
+		} else
+			spin_unlock_irqrestore(&network->lock, flags);
+	} else
+		spin_unlock_irqrestore(&network->lock, flags);
+}
+
+/*
+ * Called by the ppp system when it has a packet to send to the hardware.
+ */
+static int ipwireless_ppp_start_xmit(struct ppp_channel *ppp_channel,
+				     struct sk_buff *skb)
+{
+	struct ipw_network *network = ppp_channel->private;
+	unsigned long flags;
+
+	spin_lock_irqsave(&network->lock, flags);
+	if (network->outgoing_packets_queued < ipwireless_out_queue) {
+		unsigned char *buf;
+		static unsigned char header[] = {
+			PPP_ALLSTATIONS, /* 0xff */
+			PPP_UI,		 /* 0x03 */
+		};
+		int ret;
+
+		network->outgoing_packets_queued++;
+		spin_unlock_irqrestore(&network->lock, flags);
+
+		/*
+		 * If we have the requested amount of headroom in the skb we
+		 * were handed, then we can add the header efficiently.
+		 */
+		if (skb_headroom(skb) >= 2) {
+			memcpy(skb_push(skb, 2), header, 2);
+			ret = ipwireless_send_packet(network->hardware,
+					       IPW_CHANNEL_RAS, skb->data,
+					       skb->len,
+					       notify_packet_sent,
+					       network);
+			if (ret == -1) {
+				skb_pull(skb, 2);
+				return 0;
+			}
+		} else {
+			/* Otherwise (rarely) we do it inefficiently. */
+			buf = kmalloc(skb->len + 2, GFP_ATOMIC);
+			if (!buf)
+				return 0;
+			memcpy(buf + 2, skb->data, skb->len);
+			memcpy(buf, header, 2);
+			ret = ipwireless_send_packet(network->hardware,
+					       IPW_CHANNEL_RAS, buf,
+					       skb->len + 2,
+					       notify_packet_sent,
+					       network);
+			kfree(buf);
+			if (ret == -1)
+				return 0;
+		}
+		kfree_skb(skb);
+		return 1;
+	} else {
+		/*
+		 * Otherwise reject the packet, and flag that the ppp system
+		 * needs to be unblocked once we are ready to send.
+		 */
+		network->ppp_blocked = 1;
+		spin_unlock_irqrestore(&network->lock, flags);
+		if (ipwireless_debug)
+			printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME ": ppp blocked\n");
+		return 0;
+	}
+}
+
+/* Handle an ioctl call that has come in via ppp. (copy of ppp_async_ioctl() */
+static int ipwireless_ppp_ioctl(struct ppp_channel *ppp_channel,
+				unsigned int cmd, unsigned long arg)
+{
+	struct ipw_network *network = ppp_channel->private;
+	int err, val;
+	u32 accm[8];
+	int __user *user_arg = (int __user *) arg;
+
+	err = -EFAULT;
+	switch (cmd) {
+	case PPPIOCGFLAGS:
+		val = network->flags | network->rbits;
+		if (put_user(val, user_arg))
+			break;
+		err = 0;
+		break;
+
+	case PPPIOCSFLAGS:
+		if (get_user(val, user_arg))
+			break;
+		network->flags = val & ~SC_RCV_BITS;
+		network->rbits = val & SC_RCV_BITS;
+		err = 0;
+		break;
+
+	case PPPIOCGASYNCMAP:
+		if (put_user(network->xaccm[0], user_arg))
+			break;
+		err = 0;
+		break;
+
+	case PPPIOCSASYNCMAP:
+		if (get_user(network->xaccm[0], user_arg))
+			break;
+		err = 0;
+		break;
+
+	case PPPIOCGRASYNCMAP:
+		if (put_user(network->raccm, user_arg))
+			break;
+		err = 0;
+		break;
+
+	case PPPIOCSRASYNCMAP:
+		if (get_user(network->raccm, user_arg))
+			break;
+		err = 0;
+		break;
+
+	case PPPIOCGXASYNCMAP:
+		if (copy_to_user((void __user *) arg, network->xaccm,
+					sizeof(network->xaccm)))
+			break;
+		err = 0;
+		break;
+
+	case PPPIOCSXASYNCMAP:
+		if (copy_from_user(accm, (void __user *) arg, sizeof(accm)))
+			break;
+		accm[2] &= ~0x40000000U;	/* can't escape 0x5e */
+		accm[3] |= 0x60000000U;	/* must escape 0x7d, 0x7e */
+		memcpy(network->xaccm, accm, sizeof(network->xaccm));
+		err = 0;
+		break;
+
+	case PPPIOCGMRU:
+		if (put_user(network->mru, user_arg))
+			break;
+		err = 0;
+		break;
+
+	case PPPIOCSMRU:
+		if (get_user(val, user_arg))
+			break;
+		if (val < PPP_MRU)
+			val = PPP_MRU;
+		network->mru = val;
+		err = 0;
+		break;
+
+	default:
+		err = -ENOTTY;
+	}
+
+	return err;
+}
+
+static struct ppp_channel_ops ipwireless_ppp_channel_ops = {
+	.start_xmit = ipwireless_ppp_start_xmit,
+	.ioctl      = ipwireless_ppp_ioctl
+};
+
+static void do_go_online(struct work_struct *work_go_online)
+{
+	struct ipw_network *network =
+		container_of(work_go_online, struct ipw_network,
+				work_go_online);
+	unsigned long flags;
+
+	spin_lock_irqsave(&network->lock, flags);
+	if (!network->ppp_channel) {
+		struct ppp_channel *channel;
+
+		spin_unlock_irqrestore(&network->lock, flags);
+		channel = kzalloc(sizeof(struct ppp_channel), GFP_KERNEL);
+		if (!channel) {
+			printk(KERN_ERR IPWIRELESS_PCCARD_NAME
+					": unable to allocate PPP channel\n");
+			return;
+		}
+		channel->private = network;
+		channel->mtu = 16384;	/* Wild guess */
+		channel->hdrlen = 2;
+		channel->ops = &ipwireless_ppp_channel_ops;
+
+		network->flags = 0;
+		network->rbits = 0;
+		network->mru = PPP_MRU;
+		memset(network->xaccm, 0, sizeof(network->xaccm));
+		network->xaccm[0] = ~0U;
+		network->xaccm[3] = 0x60000000U;
+		network->raccm = ~0U;
+		ppp_register_channel(channel);
+		spin_lock_irqsave(&network->lock, flags);
+		network->ppp_channel = channel;
+	}
+	spin_unlock_irqrestore(&network->lock, flags);
+}
+
+static void do_go_offline(struct work_struct *work_go_offline)
+{
+	struct ipw_network *network =
+		container_of(work_go_offline, struct ipw_network,
+				work_go_offline);
+	unsigned long flags;
+
+	mutex_lock(&network->close_lock);
+	spin_lock_irqsave(&network->lock, flags);
+	if (network->ppp_channel != NULL) {
+		struct ppp_channel *channel = network->ppp_channel;
+
+		network->ppp_channel = NULL;
+		spin_unlock_irqrestore(&network->lock, flags);
+		mutex_unlock(&network->close_lock);
+		ppp_unregister_channel(channel);
+	} else {
+		spin_unlock_irqrestore(&network->lock, flags);
+		mutex_unlock(&network->close_lock);
+	}
+}
+
+void ipwireless_network_notify_control_line_change(struct ipw_network *network,
+						   unsigned int channel_idx,
+						   unsigned int control_lines,
+						   unsigned int changed_mask)
+{
+	int i;
+
+	if (channel_idx == IPW_CHANNEL_RAS)
+		network->ras_control_lines = control_lines;
+
+	for (i = 0; i < MAX_ASSOCIATED_TTYS; i++) {
+		struct ipw_tty *tty =
+			network->associated_ttys[channel_idx][i];
+
+		/*
+		 * If it's associated with a tty (other than the RAS channel
+		 * when we're online), then send the data to that tty.  The RAS
+		 * channel's data is handled above - it always goes through
+		 * ppp_generic.
+		 */
+		if (tty)
+			ipwireless_tty_notify_control_line_change(tty,
+								  channel_idx,
+								  control_lines,
+								  changed_mask);
+	}
+}
+
+/*
+ * Some versions of firmware stuff packets with 0xff 0x03 (PPP: ALLSTATIONS, UI)
+ * bytes, which are required on sent packet, but not always present on received
+ * packets
+ */
+static struct sk_buff *ipw_packet_received_skb(unsigned char *data,
+					       unsigned int length)
+{
+	struct sk_buff *skb;
+
+	if (length > 2 && data[0] == PPP_ALLSTATIONS && data[1] == PPP_UI) {
+		length -= 2;
+		data += 2;
+	}
+
+	skb = dev_alloc_skb(length + 4);
+	skb_reserve(skb, 2);
+	memcpy(skb_put(skb, length), data, length);
+
+	return skb;
+}
+
+void ipwireless_network_packet_received(struct ipw_network *network,
+					unsigned int channel_idx,
+					unsigned char *data,
+					unsigned int length)
+{
+	int i;
+	unsigned long flags;
+
+	for (i = 0; i < MAX_ASSOCIATED_TTYS; i++) {
+		struct ipw_tty *tty = network->associated_ttys[channel_idx][i];
+
+		if (!tty)
+			continue;
+
+		/*
+		 * If it's associated with a tty (other than the RAS channel
+		 * when we're online), then send the data to that tty.  The RAS
+		 * channel's data is handled above - it always goes through
+		 * ppp_generic.
+		 */
+		if (channel_idx == IPW_CHANNEL_RAS
+				&& (network->ras_control_lines &
+					IPW_CONTROL_LINE_DCD) != 0
+				&& ipwireless_tty_is_modem(tty)) {
+			/*
+			 * If data came in on the RAS channel and this tty is
+			 * the modem tty, and we are online, then we send it to
+			 * the PPP layer.
+			 */
+			mutex_lock(&network->close_lock);
+			spin_lock_irqsave(&network->lock, flags);
+			if (network->ppp_channel != NULL) {
+				struct sk_buff *skb;
+
+				spin_unlock_irqrestore(&network->lock,
+						flags);
+
+				/* Send the data to the ppp_generic module. */
+				skb = ipw_packet_received_skb(data, length);
+				ppp_input(network->ppp_channel, skb);
+			} else
+				spin_unlock_irqrestore(&network->lock,
+						flags);
+			mutex_unlock(&network->close_lock);
+		}
+		/* Otherwise we send it out the tty. */
+		else
+			ipwireless_tty_received(tty, data, length);
+	}
+}
+
+struct ipw_network *ipwireless_network_create(struct ipw_hardware *hw)
+{
+	struct ipw_network *network =
+		kzalloc(sizeof(struct ipw_network), GFP_ATOMIC);
+
+	if (!network)
+		return NULL;
+
+	spin_lock_init(&network->lock);
+	mutex_init(&network->close_lock);
+
+	network->hardware = hw;
+
+	INIT_WORK(&network->work_go_online, do_go_online);
+	INIT_WORK(&network->work_go_offline, do_go_offline);
+
+	ipwireless_associate_network(hw, network);
+
+	return network;
+}
+
+void ipwireless_network_free(struct ipw_network *network)
+{
+	network->shutting_down = 1;
+
+	ipwireless_ppp_close(network);
+	flush_scheduled_work();
+
+	ipwireless_stop_interrupts(network->hardware);
+	ipwireless_associate_network(network->hardware, NULL);
+
+	kfree(network);
+}
+
+void ipwireless_associate_network_tty(struct ipw_network *network,
+				      unsigned int channel_idx,
+				      struct ipw_tty *tty)
+{
+	int i;
+
+	for (i = 0; i < MAX_ASSOCIATED_TTYS; i++)
+		if (network->associated_ttys[channel_idx][i] == NULL) {
+			network->associated_ttys[channel_idx][i] = tty;
+			break;
+		}
+}
+
+void ipwireless_disassociate_network_ttys(struct ipw_network *network,
+					  unsigned int channel_idx)
+{
+	int i;
+
+	for (i = 0; i < MAX_ASSOCIATED_TTYS; i++)
+		network->associated_ttys[channel_idx][i] = NULL;
+}
+
+void ipwireless_ppp_open(struct ipw_network *network)
+{
+	if (ipwireless_debug)
+		printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME ": online\n");
+	schedule_work(&network->work_go_online);
+}
+
+void ipwireless_ppp_close(struct ipw_network *network)
+{
+	/* Disconnect from the wireless network. */
+	if (ipwireless_debug)
+		printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME ": offline\n");
+	schedule_work(&network->work_go_offline);
+}
+
+int ipwireless_ppp_channel_index(struct ipw_network *network)
+{
+	int ret = -1;
+	unsigned long flags;
+
+	spin_lock_irqsave(&network->lock, flags);
+	if (network->ppp_channel != NULL)
+		ret = ppp_channel_index(network->ppp_channel);
+	spin_unlock_irqrestore(&network->lock, flags);
+
+	return ret;
+}
+
+int ipwireless_ppp_unit_number(struct ipw_network *network)
+{
+	int ret = -1;
+	unsigned long flags;
+
+	spin_lock_irqsave(&network->lock, flags);
+	if (network->ppp_channel != NULL)
+		ret = ppp_unit_number(network->ppp_channel);
+	spin_unlock_irqrestore(&network->lock, flags);
+
+	return ret;
+}
+
+int ipwireless_ppp_mru(const struct ipw_network *network)
+{
+	return network->mru;
+}

kernel/drivers/char/pcmcia/ipwireless/network.h

@@ -0,0 +1,53 @@
+/*
+ * IPWireless 3G PCMCIA Network Driver
+ *
+ * Original code
+ *   by Stephen Blackheath <stephen@blacksapphire.com>,
+ *      Ben Martel <benm@symmetric.co.nz>
+ *
+ * Copyrighted as follows:
+ *   Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
+ *
+ * Various driver changes and rewrites, port to new kernels
+ *   Copyright (C) 2006-2007 Jiri Kosina
+ *
+ * Misc code cleanups and updates
+ *   Copyright (C) 2007 David Sterba
+ */
+
+#ifndef _IPWIRELESS_CS_NETWORK_H_
+#define _IPWIRELESS_CS_NETWORK_H_
+
+#include <linux/types.h>
+
+struct ipw_network;
+struct ipw_tty;
+struct ipw_hardware;
+
+/* Definitions of the different channels on the PCMCIA UE */
+#define IPW_CHANNEL_RAS      0
+#define IPW_CHANNEL_DIALLER  1
+#define IPW_CHANNEL_CONSOLE  2
+#define NO_OF_IPW_CHANNELS   5
+
+void ipwireless_network_notify_control_line_change(struct ipw_network *net,
+		unsigned int channel_idx, unsigned int control_lines,
+		unsigned int control_mask);
+void ipwireless_network_packet_received(struct ipw_network *net,
+		unsigned int channel_idx, unsigned char *data,
+		unsigned int length);
+struct ipw_network *ipwireless_network_create(struct ipw_hardware *hw);
+void ipwireless_network_free(struct ipw_network *net);
+void ipwireless_associate_network_tty(struct ipw_network *net,
+		unsigned int channel_idx, struct ipw_tty *tty);
+void ipwireless_disassociate_network_ttys(struct ipw_network *net,
+		unsigned int channel_idx);
+
+void ipwireless_ppp_open(struct ipw_network *net);
+
+void ipwireless_ppp_close(struct ipw_network *net);
+int ipwireless_ppp_channel_index(struct ipw_network *net);
+int ipwireless_ppp_unit_number(struct ipw_network *net);
+int ipwireless_ppp_mru(const struct ipw_network *net);
+
+#endif

kernel/drivers/char/pcmcia/ipwireless/setup_protocol.h

@@ -0,0 +1,108 @@
+/*
+ * IPWireless 3G PCMCIA Network Driver
+ *
+ * Original code
+ *   by Stephen Blackheath <stephen@blacksapphire.com>,
+ *      Ben Martel <benm@symmetric.co.nz>
+ *
+ * Copyrighted as follows:
+ *   Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
+ *
+ * Various driver changes and rewrites, port to new kernels
+ *   Copyright (C) 2006-2007 Jiri Kosina
+ *
+ * Misc code cleanups and updates
+ *   Copyright (C) 2007 David Sterba
+ */
+
+#ifndef _IPWIRELESS_CS_SETUP_PROTOCOL_H_
+#define _IPWIRELESS_CS_SETUP_PROTOCOL_H_
+
+/* Version of the setup protocol and transport protocols */
+#define TL_SETUP_VERSION		1
+
+#define TL_SETUP_VERSION_QRY_TMO	1000
+#define TL_SETUP_MAX_VERSION_QRY	30
+
+/* Message numbers 0-9 are obsoleted and must not be reused! */
+#define TL_SETUP_SIGNO_GET_VERSION_QRY	10
+#define TL_SETUP_SIGNO_GET_VERSION_RSP	11
+#define TL_SETUP_SIGNO_CONFIG_MSG	12
+#define TL_SETUP_SIGNO_CONFIG_DONE_MSG	13
+#define TL_SETUP_SIGNO_OPEN_MSG		14
+#define TL_SETUP_SIGNO_CLOSE_MSG	15
+
+#define TL_SETUP_SIGNO_INFO_MSG     20
+#define TL_SETUP_SIGNO_INFO_MSG_ACK 21
+
+#define TL_SETUP_SIGNO_REBOOT_MSG      22
+#define TL_SETUP_SIGNO_REBOOT_MSG_ACK  23
+
+/* Synchronous start-messages */
+struct tl_setup_get_version_qry {
+	unsigned char sig_no;		/* TL_SETUP_SIGNO_GET_VERSION_QRY */
+} __attribute__ ((__packed__));
+
+struct tl_setup_get_version_rsp {
+	unsigned char sig_no;		/* TL_SETUP_SIGNO_GET_VERSION_RSP */
+	unsigned char version;		/* TL_SETUP_VERSION */
+} __attribute__ ((__packed__));
+
+struct tl_setup_config_msg {
+	unsigned char sig_no;		/* TL_SETUP_SIGNO_CONFIG_MSG */
+	unsigned char port_no;
+	unsigned char prio_data;
+	unsigned char prio_ctrl;
+} __attribute__ ((__packed__));
+
+struct tl_setup_config_done_msg {
+	unsigned char sig_no;		/* TL_SETUP_SIGNO_CONFIG_DONE_MSG */
+} __attribute__ ((__packed__));
+
+/* Asyncronous messages */
+struct tl_setup_open_msg {
+	unsigned char sig_no;		/* TL_SETUP_SIGNO_OPEN_MSG */
+	unsigned char port_no;
+} __attribute__ ((__packed__));
+
+struct tl_setup_close_msg {
+	unsigned char sig_no;		/* TL_SETUP_SIGNO_CLOSE_MSG */
+	unsigned char port_no;
+} __attribute__ ((__packed__));
+
+/* Driver type  - for use in tl_setup_info_msg.driver_type */
+#define COMM_DRIVER     0
+#define NDISWAN_DRIVER  1
+#define NDISWAN_DRIVER_MAJOR_VERSION  2
+#define NDISWAN_DRIVER_MINOR_VERSION  0
+
+/*
+ * It should not matter when this message comes over as we just store the
+ * results and send the ACK.
+ */
+struct tl_setup_info_msg {
+	unsigned char sig_no;		/* TL_SETUP_SIGNO_INFO_MSG */
+	unsigned char driver_type;
+	unsigned char major_version;
+	unsigned char minor_version;
+} __attribute__ ((__packed__));
+
+struct tl_setup_info_msgAck {
+	unsigned char sig_no;		/* TL_SETUP_SIGNO_INFO_MSG_ACK */
+} __attribute__ ((__packed__));
+
+struct TlSetupRebootMsgAck {
+	unsigned char sig_no;		/* TL_SETUP_SIGNO_REBOOT_MSG_ACK */
+} __attribute__ ((__packed__));
+
+/* Define a union of all the msgs that the driver can receive from the card.*/
+union ipw_setup_rx_msg {
+	unsigned char sig_no;
+	struct tl_setup_get_version_rsp version_rsp_msg;
+	struct tl_setup_open_msg open_msg;
+	struct tl_setup_close_msg close_msg;
+	struct tl_setup_info_msg InfoMsg;
+	struct tl_setup_info_msgAck info_msg_ack;
+} __attribute__ ((__packed__));
+
+#endif				/* _IPWIRELESS_CS_SETUP_PROTOCOL_H_ */

kernel/drivers/char/pcmcia/ipwireless/tty.c

@@ -0,0 +1,688 @@
+/*
+ * IPWireless 3G PCMCIA Network Driver
+ *
+ * Original code
+ *   by Stephen Blackheath <stephen@blacksapphire.com>,
+ *      Ben Martel <benm@symmetric.co.nz>
+ *
+ * Copyrighted as follows:
+ *   Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
+ *
+ * Various driver changes and rewrites, port to new kernels
+ *   Copyright (C) 2006-2007 Jiri Kosina
+ *
+ * Misc code cleanups and updates
+ *   Copyright (C) 2007 David Sterba
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/ppp_defs.h>
+#include <linux/if.h>
+#include <linux/if_ppp.h>
+#include <linux/sched.h>
+#include <linux/serial.h>
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+#include <linux/uaccess.h>
+
+#include "tty.h"
+#include "network.h"
+#include "hardware.h"
+#include "main.h"
+
+#define IPWIRELESS_PCMCIA_START 	(0)
+#define IPWIRELESS_PCMCIA_MINORS	(24)
+#define IPWIRELESS_PCMCIA_MINOR_RANGE	(8)
+
+#define TTYTYPE_MODEM    (0)
+#define TTYTYPE_MONITOR  (1)
+#define TTYTYPE_RAS_RAW  (2)
+
+struct ipw_tty {
+	int index;
+	struct ipw_hardware *hardware;
+	unsigned int channel_idx;
+	unsigned int secondary_channel_idx;
+	int tty_type;
+	struct ipw_network *network;
+	struct tty_struct *linux_tty;
+	int open_count;
+	unsigned int control_lines;
+	struct mutex ipw_tty_mutex;
+	int tx_bytes_queued;
+	int closing;
+};
+
+static struct ipw_tty *ttys[IPWIRELESS_PCMCIA_MINORS];
+
+static struct tty_driver *ipw_tty_driver;
+
+static char *tty_type_name(int tty_type)
+{
+	static char *channel_names[] = {
+		"modem",
+		"monitor",
+		"RAS-raw"
+	};
+
+	return channel_names[tty_type];
+}
+
+static void report_registering(struct ipw_tty *tty)
+{
+	char *iftype = tty_type_name(tty->tty_type);
+
+	printk(KERN_INFO IPWIRELESS_PCCARD_NAME
+	       ": registering %s device ttyIPWp%d\n", iftype, tty->index);
+}
+
+static void report_deregistering(struct ipw_tty *tty)
+{
+	char *iftype = tty_type_name(tty->tty_type);
+
+	printk(KERN_INFO IPWIRELESS_PCCARD_NAME
+	       ": deregistering %s device ttyIPWp%d\n", iftype,
+	       tty->index);
+}
+
+static struct ipw_tty *get_tty(int minor)
+{
+	if (minor < ipw_tty_driver->minor_start
+			|| minor >= ipw_tty_driver->minor_start +
+			IPWIRELESS_PCMCIA_MINORS)
+		return NULL;
+	else {
+		int minor_offset = minor - ipw_tty_driver->minor_start;
+
+		/*
+		 * The 'ras_raw' channel is only available when 'loopback' mode
+		 * is enabled.
+		 * Number of minor starts with 16 (_RANGE * _RAS_RAW).
+		 */
+		if (!ipwireless_loopback &&
+				minor_offset >=
+				 IPWIRELESS_PCMCIA_MINOR_RANGE * TTYTYPE_RAS_RAW)
+			return NULL;
+
+		return ttys[minor_offset];
+	}
+}
+
+static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
+{
+	int minor = linux_tty->index;
+	struct ipw_tty *tty = get_tty(minor);
+
+	if (!tty)
+		return -ENODEV;
+
+	mutex_lock(&tty->ipw_tty_mutex);
+
+	if (tty->closing) {
+		mutex_unlock(&tty->ipw_tty_mutex);
+		return -ENODEV;
+	}
+	if (tty->open_count == 0)
+		tty->tx_bytes_queued = 0;
+
+	tty->open_count++;
+
+	tty->linux_tty = linux_tty;
+	linux_tty->driver_data = tty;
+	linux_tty->low_latency = 1;
+
+	if (tty->tty_type == TTYTYPE_MODEM)
+		ipwireless_ppp_open(tty->network);
+
+	mutex_unlock(&tty->ipw_tty_mutex);
+
+	return 0;
+}
+
+static void do_ipw_close(struct ipw_tty *tty)
+{
+	tty->open_count--;
+
+	if (tty->open_count == 0) {
+		struct tty_struct *linux_tty = tty->linux_tty;
+
+		if (linux_tty != NULL) {
+			tty->linux_tty = NULL;
+			linux_tty->driver_data = NULL;
+
+			if (tty->tty_type == TTYTYPE_MODEM)
+				ipwireless_ppp_close(tty->network);
+		}
+	}
+}
+
+static void ipw_hangup(struct tty_struct *linux_tty)
+{
+	struct ipw_tty *tty = linux_tty->driver_data;
+
+	if (!tty)
+		return;
+
+	mutex_lock(&tty->ipw_tty_mutex);
+	if (tty->open_count == 0) {
+		mutex_unlock(&tty->ipw_tty_mutex);
+		return;
+	}
+
+	do_ipw_close(tty);
+
+	mutex_unlock(&tty->ipw_tty_mutex);
+}
+
+static void ipw_close(struct tty_struct *linux_tty, struct file *filp)
+{
+	ipw_hangup(linux_tty);
+}
+
+/* Take data received from hardware, and send it out the tty */
+void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data,
+			unsigned int length)
+{
+	struct tty_struct *linux_tty;
+	int work = 0;
+
+	mutex_lock(&tty->ipw_tty_mutex);
+	linux_tty = tty->linux_tty;
+	if (linux_tty == NULL) {
+		mutex_unlock(&tty->ipw_tty_mutex);
+		return;
+	}
+
+	if (!tty->open_count) {
+		mutex_unlock(&tty->ipw_tty_mutex);
+		return;
+	}
+	mutex_unlock(&tty->ipw_tty_mutex);
+
+	work = tty_insert_flip_string(linux_tty, data, length);
+
+	if (work != length)
+		printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME
+				": %d chars not inserted to flip buffer!\n",
+				length - work);
+
+	/*
+	 * This may sleep if ->low_latency is set
+	 */
+	if (work)
+		tty_flip_buffer_push(linux_tty);
+}
+
+static void ipw_write_packet_sent_callback(void *callback_data,
+					   unsigned int packet_length)
+{
+	struct ipw_tty *tty = callback_data;
+
+	/*
+	 * Packet has been sent, so we subtract the number of bytes from our
+	 * tally of outstanding TX bytes.
+	 */
+	tty->tx_bytes_queued -= packet_length;
+}
+
+static int ipw_write(struct tty_struct *linux_tty,
+		     const unsigned char *buf, int count)
+{
+	struct ipw_tty *tty = linux_tty->driver_data;
+	int room, ret;
+
+	if (!tty)
+		return -ENODEV;
+
+	mutex_lock(&tty->ipw_tty_mutex);
+	if (!tty->open_count) {
+		mutex_unlock(&tty->ipw_tty_mutex);
+		return -EINVAL;
+	}
+
+	room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued;
+	if (room < 0)
+		room = 0;
+	/* Don't allow caller to write any more than we have room for */
+	if (count > room)
+		count = room;
+
+	if (count == 0) {
+		mutex_unlock(&tty->ipw_tty_mutex);
+		return 0;
+	}
+
+	ret = ipwireless_send_packet(tty->hardware, IPW_CHANNEL_RAS,
+			       buf, count,
+			       ipw_write_packet_sent_callback, tty);
+	if (ret == -1) {
+		mutex_unlock(&tty->ipw_tty_mutex);
+		return 0;
+	}
+
+	tty->tx_bytes_queued += count;
+	mutex_unlock(&tty->ipw_tty_mutex);
+
+	return count;
+}
+
+static int ipw_write_room(struct tty_struct *linux_tty)
+{
+	struct ipw_tty *tty = linux_tty->driver_data;
+	int room;
+
+	/* FIXME: Exactly how is the tty object locked here .. */
+	if (!tty)
+		return -ENODEV;
+
+	if (!tty->open_count)
+		return -EINVAL;
+
+	room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued;
+	if (room < 0)
+		room = 0;
+
+	return room;
+}
+
+static int ipwireless_get_serial_info(struct ipw_tty *tty,
+				      struct serial_struct __user *retinfo)
+{
+	struct serial_struct tmp;
+
+	if (!retinfo)
+		return (-EFAULT);
+
+	memset(&tmp, 0, sizeof(tmp));
+	tmp.type = PORT_UNKNOWN;
+	tmp.line = tty->index;
+	tmp.port = 0;
+	tmp.irq = 0;
+	tmp.flags = 0;
+	tmp.baud_base = 115200;
+	tmp.close_delay = 0;
+	tmp.closing_wait = 0;
+	tmp.custom_divisor = 0;
+	tmp.hub6 = 0;
+	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int ipw_chars_in_buffer(struct tty_struct *linux_tty)
+{
+	struct ipw_tty *tty = linux_tty->driver_data;
+
+	if (!tty)
+		return 0;
+
+	if (!tty->open_count)
+		return 0;
+
+	return tty->tx_bytes_queued;
+}
+
+static int get_control_lines(struct ipw_tty *tty)
+{
+	unsigned int my = tty->control_lines;
+	unsigned int out = 0;
+
+	if (my & IPW_CONTROL_LINE_RTS)
+		out |= TIOCM_RTS;
+	if (my & IPW_CONTROL_LINE_DTR)
+		out |= TIOCM_DTR;
+	if (my & IPW_CONTROL_LINE_CTS)
+		out |= TIOCM_CTS;
+	if (my & IPW_CONTROL_LINE_DSR)
+		out |= TIOCM_DSR;
+	if (my & IPW_CONTROL_LINE_DCD)
+		out |= TIOCM_CD;
+
+	return out;
+}
+
+static int set_control_lines(struct ipw_tty *tty, unsigned int set,
+			     unsigned int clear)
+{
+	int ret;
+
+	if (set & TIOCM_RTS) {
+		ret = ipwireless_set_RTS(tty->hardware, tty->channel_idx, 1);
+		if (ret)
+			return ret;
+		if (tty->secondary_channel_idx != -1) {
+			ret = ipwireless_set_RTS(tty->hardware,
+					  tty->secondary_channel_idx, 1);
+			if (ret)
+				return ret;
+		}
+	}
+	if (set & TIOCM_DTR) {
+		ret = ipwireless_set_DTR(tty->hardware, tty->channel_idx, 1);
+		if (ret)
+			return ret;
+		if (tty->secondary_channel_idx != -1) {
+			ret = ipwireless_set_DTR(tty->hardware,
+					  tty->secondary_channel_idx, 1);
+			if (ret)
+				return ret;
+		}
+	}
+	if (clear & TIOCM_RTS) {
+		ret = ipwireless_set_RTS(tty->hardware, tty->channel_idx, 0);
+		if (tty->secondary_channel_idx != -1) {
+			ret = ipwireless_set_RTS(tty->hardware,
+					  tty->secondary_channel_idx, 0);
+			if (ret)
+				return ret;
+		}
+	}
+	if (clear & TIOCM_DTR) {
+		ret = ipwireless_set_DTR(tty->hardware, tty->channel_idx, 0);
+		if (tty->secondary_channel_idx != -1) {
+			ret = ipwireless_set_DTR(tty->hardware,
+					  tty->secondary_channel_idx, 0);
+			if (ret)
+				return ret;
+		}
+	}
+	return 0;
+}
+
+static int ipw_tiocmget(struct tty_struct *linux_tty, struct file *file)
+{
+	struct ipw_tty *tty = linux_tty->driver_data;
+	/* FIXME: Exactly how is the tty object locked here .. */
+
+	if (!tty)
+		return -ENODEV;
+
+	if (!tty->open_count)
+		return -EINVAL;
+
+	return get_control_lines(tty);
+}
+
+static int
+ipw_tiocmset(struct tty_struct *linux_tty, struct file *file,
+	     unsigned int set, unsigned int clear)
+{
+	struct ipw_tty *tty = linux_tty->driver_data;
+	/* FIXME: Exactly how is the tty object locked here .. */
+
+	if (!tty)
+		return -ENODEV;
+
+	if (!tty->open_count)
+		return -EINVAL;
+
+	return set_control_lines(tty, set, clear);
+}
+
+static int ipw_ioctl(struct tty_struct *linux_tty, struct file *file,
+		     unsigned int cmd, unsigned long arg)
+{
+	struct ipw_tty *tty = linux_tty->driver_data;
+
+	if (!tty)
+		return -ENODEV;
+
+	if (!tty->open_count)
+		return -EINVAL;
+
+	/* FIXME: Exactly how is the tty object locked here .. */
+
+	switch (cmd) {
+	case TIOCGSERIAL:
+		return ipwireless_get_serial_info(tty, (void __user *) arg);
+
+	case TIOCSSERIAL:
+		return 0;	/* Keeps the PCMCIA scripts happy. */
+	}
+
+	if (tty->tty_type == TTYTYPE_MODEM) {
+		switch (cmd) {
+		case PPPIOCGCHAN:
+			{
+				int chan = ipwireless_ppp_channel_index(
+							tty->network);
+
+				if (chan < 0)
+					return -ENODEV;
+				if (put_user(chan, (int __user *) arg))
+					return -EFAULT;
+			}
+			return 0;
+
+		case PPPIOCGUNIT:
+			{
+				int unit = ipwireless_ppp_unit_number(
+						tty->network);
+
+				if (unit < 0)
+					return -ENODEV;
+				if (put_user(unit, (int __user *) arg))
+					return -EFAULT;
+			}
+			return 0;
+
+		case FIONREAD:
+			{
+				int val = 0;
+
+				if (put_user(val, (int __user *) arg))
+					return -EFAULT;
+			}
+			return 0;
+		case TCFLSH:
+			return tty_perform_flush(linux_tty, arg);
+		}
+	}
+	return tty_mode_ioctl(linux_tty, file, cmd , arg);
+}
+
+static int add_tty(dev_node_t *nodesp, int j,
+		    struct ipw_hardware *hardware,
+		    struct ipw_network *network, int channel_idx,
+		    int secondary_channel_idx, int tty_type)
+{
+	ttys[j] = kzalloc(sizeof(struct ipw_tty), GFP_KERNEL);
+	if (!ttys[j])
+		return -ENOMEM;
+	ttys[j]->index = j;
+	ttys[j]->hardware = hardware;
+	ttys[j]->channel_idx = channel_idx;
+	ttys[j]->secondary_channel_idx = secondary_channel_idx;
+	ttys[j]->network = network;
+	ttys[j]->tty_type = tty_type;
+	mutex_init(&ttys[j]->ipw_tty_mutex);
+
+	tty_register_device(ipw_tty_driver, j, NULL);
+	ipwireless_associate_network_tty(network, channel_idx, ttys[j]);
+
+	if (secondary_channel_idx != -1)
+		ipwireless_associate_network_tty(network,
+						 secondary_channel_idx,
+						 ttys[j]);
+	if (nodesp != NULL) {
+		sprintf(nodesp->dev_name, "ttyIPWp%d", j);
+		nodesp->major = ipw_tty_driver->major;
+		nodesp->minor = j + ipw_tty_driver->minor_start;
+	}
+	if (get_tty(j + ipw_tty_driver->minor_start) == ttys[j])
+		report_registering(ttys[j]);
+	return 0;
+}
+
+struct ipw_tty *ipwireless_tty_create(struct ipw_hardware *hardware,
+				      struct ipw_network *network,
+				      dev_node_t *nodes)
+{
+	int i, j;
+
+	for (i = 0; i < IPWIRELESS_PCMCIA_MINOR_RANGE; i++) {
+		int allfree = 1;
+
+		for (j = i; j < IPWIRELESS_PCMCIA_MINORS;
+				j += IPWIRELESS_PCMCIA_MINOR_RANGE)
+			if (ttys[j] != NULL) {
+				allfree = 0;
+				break;
+			}
+
+		if (allfree) {
+			j = i;
+
+			if (add_tty(&nodes[0], j, hardware, network,
+					IPW_CHANNEL_DIALLER, IPW_CHANNEL_RAS,
+					TTYTYPE_MODEM))
+				return NULL;
+
+			j += IPWIRELESS_PCMCIA_MINOR_RANGE;
+			if (add_tty(&nodes[1], j, hardware, network,
+					IPW_CHANNEL_DIALLER, -1,
+					TTYTYPE_MONITOR))
+				return NULL;
+
+			j += IPWIRELESS_PCMCIA_MINOR_RANGE;
+			if (add_tty(NULL, j, hardware, network,
+					IPW_CHANNEL_RAS, -1,
+					TTYTYPE_RAS_RAW))
+				return NULL;
+
+			nodes[0].next = &nodes[1];
+			nodes[1].next = NULL;
+
+			return ttys[i];
+		}
+	}
+	return NULL;
+}
+
+/*
+ * Must be called before ipwireless_network_free().
+ */
+void ipwireless_tty_free(struct ipw_tty *tty)
+{
+	int j;
+	struct ipw_network *network = ttys[tty->index]->network;
+
+	for (j = tty->index; j < IPWIRELESS_PCMCIA_MINORS;
+			j += IPWIRELESS_PCMCIA_MINOR_RANGE) {
+		struct ipw_tty *ttyj = ttys[j];
+
+		if (ttyj) {
+			mutex_lock(&ttyj->ipw_tty_mutex);
+			if (get_tty(j + ipw_tty_driver->minor_start) == ttyj)
+				report_deregistering(ttyj);
+			ttyj->closing = 1;
+			if (ttyj->linux_tty != NULL) {
+				mutex_unlock(&ttyj->ipw_tty_mutex);
+				tty_hangup(ttyj->linux_tty);
+				/* Wait till the tty_hangup has completed */
+				flush_scheduled_work();
+				/* FIXME: Exactly how is the tty object locked here
+				   against a parallel ioctl etc */
+				mutex_lock(&ttyj->ipw_tty_mutex);
+			}
+			while (ttyj->open_count)
+				do_ipw_close(ttyj);
+			ipwireless_disassociate_network_ttys(network,
+							     ttyj->channel_idx);
+			tty_unregister_device(ipw_tty_driver, j);
+			ttys[j] = NULL;
+			mutex_unlock(&ttyj->ipw_tty_mutex);
+			kfree(ttyj);
+		}
+	}
+}
+
+static struct tty_operations tty_ops = {
+	.open = ipw_open,
+	.close = ipw_close,
+	.hangup = ipw_hangup,
+	.write = ipw_write,
+	.write_room = ipw_write_room,
+	.ioctl = ipw_ioctl,
+	.chars_in_buffer = ipw_chars_in_buffer,
+	.tiocmget = ipw_tiocmget,
+	.tiocmset = ipw_tiocmset,
+};
+
+int ipwireless_tty_init(void)
+{
+	int result;
+
+	ipw_tty_driver = alloc_tty_driver(IPWIRELESS_PCMCIA_MINORS);
+	if (!ipw_tty_driver)
+		return -ENOMEM;
+
+	ipw_tty_driver->owner = THIS_MODULE;
+	ipw_tty_driver->driver_name = IPWIRELESS_PCCARD_NAME;
+	ipw_tty_driver->name = "ttyIPWp";
+	ipw_tty_driver->major = 0;
+	ipw_tty_driver->minor_start = IPWIRELESS_PCMCIA_START;
+	ipw_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
+	ipw_tty_driver->subtype = SERIAL_TYPE_NORMAL;
+	ipw_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
+	ipw_tty_driver->init_termios = tty_std_termios;
+	ipw_tty_driver->init_termios.c_cflag =
+	    B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+	ipw_tty_driver->init_termios.c_ispeed = 9600;
+	ipw_tty_driver->init_termios.c_ospeed = 9600;
+	tty_set_operations(ipw_tty_driver, &tty_ops);
+	result = tty_register_driver(ipw_tty_driver);
+	if (result) {
+		printk(KERN_ERR IPWIRELESS_PCCARD_NAME
+		       ": failed to register tty driver\n");
+		put_tty_driver(ipw_tty_driver);
+		return result;
+	}
+
+	return 0;
+}
+
+void ipwireless_tty_release(void)
+{
+	int ret;
+
+	ret = tty_unregister_driver(ipw_tty_driver);
+	put_tty_driver(ipw_tty_driver);
+	if (ret != 0)
+		printk(KERN_ERR IPWIRELESS_PCCARD_NAME
+			": tty_unregister_driver failed with code %d\n", ret);
+}
+
+int ipwireless_tty_is_modem(struct ipw_tty *tty)
+{
+	return tty->tty_type == TTYTYPE_MODEM;
+}
+
+void
+ipwireless_tty_notify_control_line_change(struct ipw_tty *tty,
+					  unsigned int channel_idx,
+					  unsigned int control_lines,
+					  unsigned int changed_mask)
+{
+	unsigned int old_control_lines = tty->control_lines;
+
+	tty->control_lines = (tty->control_lines & ~changed_mask)
+		| (control_lines & changed_mask);
+
+	/*
+	 * If DCD is de-asserted, we close the tty so pppd can tell that we
+	 * have gone offline.
+	 */
+	if ((old_control_lines & IPW_CONTROL_LINE_DCD)
+			&& !(tty->control_lines & IPW_CONTROL_LINE_DCD)
+			&& tty->linux_tty) {
+		tty_hangup(tty->linux_tty);
+	}
+}
+

kernel/drivers/char/pcmcia/ipwireless/tty.h

@@ -0,0 +1,48 @@
+/*
+ * IPWireless 3G PCMCIA Network Driver
+ *
+ * Original code
+ *   by Stephen Blackheath <stephen@blacksapphire.com>,
+ *      Ben Martel <benm@symmetric.co.nz>
+ *
+ * Copyrighted as follows:
+ *   Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
+ *
+ * Various driver changes and rewrites, port to new kernels
+ *   Copyright (C) 2006-2007 Jiri Kosina
+ *
+ * Misc code cleanups and updates
+ *   Copyright (C) 2007 David Sterba
+ */
+
+#ifndef _IPWIRELESS_CS_TTY_H_
+#define _IPWIRELESS_CS_TTY_H_
+
+#include <linux/types.h>
+#include <linux/sched.h>
+
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ds.h>
+
+struct ipw_tty;
+struct ipw_network;
+struct ipw_hardware;
+
+int ipwireless_tty_init(void);
+void ipwireless_tty_release(void);
+
+struct ipw_tty *ipwireless_tty_create(struct ipw_hardware *hw,
+				      struct ipw_network *net,
+				      dev_node_t *nodes);
+void ipwireless_tty_free(struct ipw_tty *tty);
+void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data,
+			     unsigned int length);
+int ipwireless_tty_is_modem(struct ipw_tty *tty);
+void ipwireless_tty_notify_control_line_change(struct ipw_tty *tty,
+					       unsigned int channel_idx,
+					       unsigned int control_lines,
+					       unsigned int changed_mask);
+
+#endif