Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
new file mode 100644
index 0000000..7fd0aa9
--- /dev/null
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -0,0 +1,894 @@
+/*
+ * USB Keyspan PDA / Xircom / Entregra Converter driver
+ *
+ * Copyright (C) 1999 - 2001 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (C) 1999, 2000 Brian Warner <warner@lothar.com>
+ * Copyright (C) 2000 Al Borchers <borchers@steinerpoint.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * See Documentation/usb/usb-serial.txt for more information on using this driver
+ *
+ * (09/07/2001) gkh
+ * cleaned up the Xircom support. Added ids for Entregra device which is
+ * the same as the Xircom device. Enabled the code to be compiled for
+ * either Xircom or Keyspan devices.
+ *
+ * (08/11/2001) Cristian M. Craciunescu
+ * support for Xircom PGSDB9
+ *
+ * (05/31/2001) gkh
+ * switched from using spinlock to a semaphore, which fixes lots of problems.
+ *
+ * (04/08/2001) gb
+ * Identify version on module load.
+ *
+ * (11/01/2000) Adam J. Richter
+ * usb_device_id table support
+ *
+ * (10/05/2000) gkh
+ * Fixed bug with urb->dev not being set properly, now that the usb
+ * core needs it.
+ *
+ * (08/28/2000) gkh
+ * Added locks for SMP safeness.
+ * Fixed MOD_INC and MOD_DEC logic and the ability to open a port more
+ * than once.
+ *
+ * (07/20/2000) borchers
+ * - keyspan_pda_write no longer sleeps if it is called on interrupt time;
+ * PPP and the line discipline with stty echo on can call write on
+ * interrupt time and this would cause an oops if write slept
+ * - if keyspan_pda_write is in an interrupt, it will not call
+ * usb_control_msg (which sleeps) to query the room in the device
+ * buffer, it simply uses the current room value it has
+ * - if the urb is busy or if it is throttled keyspan_pda_write just
+ * returns 0, rather than sleeping to wait for this to change; the
+ * write_chan code in n_tty.c will sleep if needed before calling
+ * keyspan_pda_write again
+ * - if the device needs to be unthrottled, write now queues up the
+ * call to usb_control_msg (which sleeps) to unthrottle the device
+ * - the wakeups from keyspan_pda_write_bulk_callback are queued rather
+ * than done directly from the callback to avoid the race in write_chan
+ * - keyspan_pda_chars_in_buffer also indicates its buffer is full if the
+ * urb status is -EINPROGRESS, meaning it cannot write at the moment
+ *
+ * (07/19/2000) gkh
+ * Added module_init and module_exit functions to handle the fact that this
+ * driver is a loadable module now.
+ *
+ * (03/26/2000) gkh
+ * Split driver up into device specific pieces.
+ *
+ */
+
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <asm/uaccess.h>
+#include <linux/usb.h>
+
+static int debug;
+
+struct ezusb_hex_record {
+ __u16 address;
+ __u8 data_size;
+ __u8 data[16];
+};
+
+/* make a simple define to handle if we are compiling keyspan_pda or xircom support */
+#if defined(CONFIG_USB_SERIAL_KEYSPAN_PDA) || defined(CONFIG_USB_SERIAL_KEYSPAN_PDA_MODULE)
+ #define KEYSPAN
+#else
+ #undef KEYSPAN
+#endif
+#if defined(CONFIG_USB_SERIAL_XIRCOM) || defined(CONFIG_USB_SERIAL_XIRCOM_MODULE)
+ #define XIRCOM
+#else
+ #undef XIRCOM
+#endif
+
+#ifdef KEYSPAN
+#include "keyspan_pda_fw.h"
+#endif
+
+#ifdef XIRCOM
+#include "xircom_pgs_fw.h"
+#endif
+
+#include "usb-serial.h"
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v1.1"
+#define DRIVER_AUTHOR "Brian Warner <warner@lothar.com>"
+#define DRIVER_DESC "USB Keyspan PDA Converter driver"
+
+struct keyspan_pda_private {
+ int tx_room;
+ int tx_throttled;
+ struct work_struct wakeup_work;
+ struct work_struct unthrottle_work;
+};
+
+
+#define KEYSPAN_VENDOR_ID 0x06cd
+#define KEYSPAN_PDA_FAKE_ID 0x0103
+#define KEYSPAN_PDA_ID 0x0104 /* no clue */
+
+/* For Xircom PGSDB9 and older Entregra version of the same device */
+#define XIRCOM_VENDOR_ID 0x085a
+#define XIRCOM_FAKE_ID 0x8027
+#define ENTREGRA_VENDOR_ID 0x1645
+#define ENTREGRA_FAKE_ID 0x8093
+
+static struct usb_device_id id_table_combined [] = {
+#ifdef KEYSPAN
+ { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_FAKE_ID) },
+#endif
+#ifdef XIRCOM
+ { USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID) },
+ { USB_DEVICE(ENTREGRA_VENDOR_ID, ENTREGRA_FAKE_ID) },
+#endif
+ { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_ID) },
+ { } /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, id_table_combined);
+
+static struct usb_driver keyspan_pda_driver = {
+ .owner = THIS_MODULE,
+ .name = "keyspan_pda",
+ .probe = usb_serial_probe,
+ .disconnect = usb_serial_disconnect,
+ .id_table = id_table_combined,
+};
+
+static struct usb_device_id id_table_std [] = {
+ { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_ID) },
+ { } /* Terminating entry */
+};
+
+#ifdef KEYSPAN
+static struct usb_device_id id_table_fake [] = {
+ { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_FAKE_ID) },
+ { } /* Terminating entry */
+};
+#endif
+
+#ifdef XIRCOM
+static struct usb_device_id id_table_fake_xircom [] = {
+ { USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID) },
+ { USB_DEVICE(ENTREGRA_VENDOR_ID, ENTREGRA_FAKE_ID) },
+ { }
+};
+#endif
+
+static void keyspan_pda_wakeup_write( struct usb_serial_port *port )
+{
+
+ struct tty_struct *tty = port->tty;
+
+ /* wake up port processes */
+ wake_up_interruptible( &port->write_wait );
+
+ /* wake up line discipline */
+ tty_wakeup(tty);
+}
+
+static void keyspan_pda_request_unthrottle( struct usb_serial *serial )
+{
+ int result;
+
+ dbg(" request_unthrottle");
+ /* ask the device to tell us when the tx buffer becomes
+ sufficiently empty */
+ result = usb_control_msg(serial->dev,
+ usb_sndctrlpipe(serial->dev, 0),
+ 7, /* request_unthrottle */
+ USB_TYPE_VENDOR | USB_RECIP_INTERFACE
+ | USB_DIR_OUT,
+ 16, /* value: threshold */
+ 0, /* index */
+ NULL,
+ 0,
+ 2000);
+ if (result < 0)
+ dbg("%s - error %d from usb_control_msg",
+ __FUNCTION__, result);
+}
+
+
+static void keyspan_pda_rx_interrupt (struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+ struct tty_struct *tty = port->tty;
+ unsigned char *data = urb->transfer_buffer;
+ int i;
+ int status;
+ struct keyspan_pda_private *priv;
+ priv = usb_get_serial_port_data(port);
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+ return;
+ default:
+ dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+ goto exit;
+ }
+
+ /* see if the message is data or a status interrupt */
+ switch (data[0]) {
+ case 0:
+ /* rest of message is rx data */
+ if (urb->actual_length) {
+ for (i = 1; i < urb->actual_length ; ++i) {
+ tty_insert_flip_char(tty, data[i], 0);
+ }
+ tty_flip_buffer_push(tty);
+ }
+ break;
+ case 1:
+ /* status interrupt */
+ dbg(" rx int, d1=%d, d2=%d", data[1], data[2]);
+ switch (data[1]) {
+ case 1: /* modemline change */
+ break;
+ case 2: /* tx unthrottle interrupt */
+ priv->tx_throttled = 0;
+ /* queue up a wakeup at scheduler time */
+ schedule_work(&priv->wakeup_work);
+ break;
+ default:
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+
+exit:
+ status = usb_submit_urb (urb, GFP_ATOMIC);
+ if (status)
+ err ("%s - usb_submit_urb failed with result %d",
+ __FUNCTION__, status);
+}
+
+
+static void keyspan_pda_rx_throttle (struct usb_serial_port *port)
+{
+ /* stop receiving characters. We just turn off the URB request, and
+ let chars pile up in the device. If we're doing hardware
+ flowcontrol, the device will signal the other end when its buffer
+ fills up. If we're doing XON/XOFF, this would be a good time to
+ send an XOFF, although it might make sense to foist that off
+ upon the device too. */
+
+ dbg("keyspan_pda_rx_throttle port %d", port->number);
+ usb_kill_urb(port->interrupt_in_urb);
+}
+
+
+static void keyspan_pda_rx_unthrottle (struct usb_serial_port *port)
+{
+ /* just restart the receive interrupt URB */
+ dbg("keyspan_pda_rx_unthrottle port %d", port->number);
+ port->interrupt_in_urb->dev = port->serial->dev;
+ if (usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC))
+ dbg(" usb_submit_urb(read urb) failed");
+ return;
+}
+
+
+static int keyspan_pda_setbaud (struct usb_serial *serial, int baud)
+{
+ int rc;
+ int bindex;
+
+ switch(baud) {
+ case 110: bindex = 0; break;
+ case 300: bindex = 1; break;
+ case 1200: bindex = 2; break;
+ case 2400: bindex = 3; break;
+ case 4800: bindex = 4; break;
+ case 9600: bindex = 5; break;
+ case 19200: bindex = 6; break;
+ case 38400: bindex = 7; break;
+ case 57600: bindex = 8; break;
+ case 115200: bindex = 9; break;
+ default: return -EINVAL;
+ }
+
+ /* rather than figure out how to sleep while waiting for this
+ to complete, I just use the "legacy" API. */
+ rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
+ 0, /* set baud */
+ USB_TYPE_VENDOR
+ | USB_RECIP_INTERFACE
+ | USB_DIR_OUT, /* type */
+ bindex, /* value */
+ 0, /* index */
+ NULL, /* &data */
+ 0, /* size */
+ 2000); /* timeout */
+ return(rc);
+}
+
+
+static void keyspan_pda_break_ctl (struct usb_serial_port *port, int break_state)
+{
+ struct usb_serial *serial = port->serial;
+ int value;
+ int result;
+
+ if (break_state == -1)
+ value = 1; /* start break */
+ else
+ value = 0; /* clear break */
+ result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
+ 4, /* set break */
+ USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
+ value, 0, NULL, 0, 2000);
+ if (result < 0)
+ dbg("%s - error %d from usb_control_msg",
+ __FUNCTION__, result);
+ /* there is something funky about this.. the TCSBRK that 'cu' performs
+ ought to translate into a break_ctl(-1),break_ctl(0) pair HZ/4
+ seconds apart, but it feels like the break sent isn't as long as it
+ is on /dev/ttyS0 */
+}
+
+
+static void keyspan_pda_set_termios (struct usb_serial_port *port,
+ struct termios *old_termios)
+{
+ struct usb_serial *serial = port->serial;
+ unsigned int cflag = port->tty->termios->c_cflag;
+
+ /* cflag specifies lots of stuff: number of stop bits, parity, number
+ of data bits, baud. What can the device actually handle?:
+ CSTOPB (1 stop bit or 2)
+ PARENB (parity)
+ CSIZE (5bit .. 8bit)
+ There is minimal hw support for parity (a PSW bit seems to hold the
+ parity of whatever is in the accumulator). The UART either deals
+ with 10 bits (start, 8 data, stop) or 11 bits (start, 8 data,
+ 1 special, stop). So, with firmware changes, we could do:
+ 8N1: 10 bit
+ 8N2: 11 bit, extra bit always (mark?)
+ 8[EOMS]1: 11 bit, extra bit is parity
+ 7[EOMS]1: 10 bit, b0/b7 is parity
+ 7[EOMS]2: 11 bit, b0/b7 is parity, extra bit always (mark?)
+
+ HW flow control is dictated by the tty->termios->c_cflags & CRTSCTS
+ bit.
+
+ For now, just do baud. */
+
+ switch (cflag & CBAUD) {
+ /* we could support more values here, just need to calculate
+ the necessary divisors in the firmware. <asm/termbits.h>
+ has the Bnnn constants. */
+ case B110: keyspan_pda_setbaud(serial, 110); break;
+ case B300: keyspan_pda_setbaud(serial, 300); break;
+ case B1200: keyspan_pda_setbaud(serial, 1200); break;
+ case B2400: keyspan_pda_setbaud(serial, 2400); break;
+ case B4800: keyspan_pda_setbaud(serial, 4800); break;
+ case B9600: keyspan_pda_setbaud(serial, 9600); break;
+ case B19200: keyspan_pda_setbaud(serial, 19200); break;
+ case B38400: keyspan_pda_setbaud(serial, 38400); break;
+ case B57600: keyspan_pda_setbaud(serial, 57600); break;
+ case B115200: keyspan_pda_setbaud(serial, 115200); break;
+ default: dbg("can't handle requested baud rate"); break;
+ }
+}
+
+
+/* modem control pins: DTR and RTS are outputs and can be controlled.
+ DCD, RI, DSR, CTS are inputs and can be read. All outputs can also be
+ read. The byte passed is: DTR(b7) DCD RI DSR CTS RTS(b2) unused unused */
+
+static int keyspan_pda_get_modem_info(struct usb_serial *serial,
+ unsigned char *value)
+{
+ int rc;
+ unsigned char data;
+ rc = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+ 3, /* get pins */
+ USB_TYPE_VENDOR|USB_RECIP_INTERFACE|USB_DIR_IN,
+ 0, 0, &data, 1, 2000);
+ if (rc > 0)
+ *value = data;
+ return rc;
+}
+
+
+static int keyspan_pda_set_modem_info(struct usb_serial *serial,
+ unsigned char value)
+{
+ int rc;
+ rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
+ 3, /* set pins */
+ USB_TYPE_VENDOR|USB_RECIP_INTERFACE|USB_DIR_OUT,
+ value, 0, NULL, 0, 2000);
+ return rc;
+}
+
+static int keyspan_pda_tiocmget(struct usb_serial_port *port, struct file *file)
+{
+ struct usb_serial *serial = port->serial;
+ int rc;
+ unsigned char status;
+ int value;
+
+ rc = keyspan_pda_get_modem_info(serial, &status);
+ if (rc < 0)
+ return rc;
+ value =
+ ((status & (1<<7)) ? TIOCM_DTR : 0) |
+ ((status & (1<<6)) ? TIOCM_CAR : 0) |
+ ((status & (1<<5)) ? TIOCM_RNG : 0) |
+ ((status & (1<<4)) ? TIOCM_DSR : 0) |
+ ((status & (1<<3)) ? TIOCM_CTS : 0) |
+ ((status & (1<<2)) ? TIOCM_RTS : 0);
+ return value;
+}
+
+static int keyspan_pda_tiocmset(struct usb_serial_port *port, struct file *file,
+ unsigned int set, unsigned int clear)
+{
+ struct usb_serial *serial = port->serial;
+ int rc;
+ unsigned char status;
+
+ rc = keyspan_pda_get_modem_info(serial, &status);
+ if (rc < 0)
+ return rc;
+
+ if (set & TIOCM_RTS)
+ status |= (1<<2);
+ if (set & TIOCM_DTR)
+ status |= (1<<7);
+
+ if (clear & TIOCM_RTS)
+ status &= ~(1<<2);
+ if (clear & TIOCM_DTR)
+ status &= ~(1<<7);
+ rc = keyspan_pda_set_modem_info(serial, status);
+ return rc;
+}
+
+static int keyspan_pda_ioctl(struct usb_serial_port *port, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ switch (cmd) {
+ case TIOCMIWAIT:
+ /* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/
+ /* TODO */
+ case TIOCGICOUNT:
+ /* return count of modemline transitions */
+ return 0; /* TODO */
+ }
+
+ return -ENOIOCTLCMD;
+}
+
+static int keyspan_pda_write(struct usb_serial_port *port,
+ const unsigned char *buf, int count)
+{
+ struct usb_serial *serial = port->serial;
+ int request_unthrottle = 0;
+ int rc = 0;
+ struct keyspan_pda_private *priv;
+
+ priv = usb_get_serial_port_data(port);
+ /* guess how much room is left in the device's ring buffer, and if we
+ want to send more than that, check first, updating our notion of
+ what is left. If our write will result in no room left, ask the
+ device to give us an interrupt when the room available rises above
+ a threshold, and hold off all writers (eventually, those using
+ select() or poll() too) until we receive that unthrottle interrupt.
+ Block if we can't write anything at all, otherwise write as much as
+ we can. */
+ dbg("keyspan_pda_write(%d)",count);
+ if (count == 0) {
+ dbg(" write request of 0 bytes");
+ return (0);
+ }
+
+ /* we might block because of:
+ the TX urb is in-flight (wait until it completes)
+ the device is full (wait until it says there is room)
+ */
+ if (port->write_urb->status == -EINPROGRESS || priv->tx_throttled ) {
+ return( 0 );
+ }
+
+ /* At this point the URB is in our control, nobody else can submit it
+ again (the only sudden transition was the one from EINPROGRESS to
+ finished). Also, the tx process is not throttled. So we are
+ ready to write. */
+
+ count = (count > port->bulk_out_size) ? port->bulk_out_size : count;
+
+ /* Check if we might overrun the Tx buffer. If so, ask the
+ device how much room it really has. This is done only on
+ scheduler time, since usb_control_msg() sleeps. */
+ if (count > priv->tx_room && !in_interrupt()) {
+ unsigned char room;
+ rc = usb_control_msg(serial->dev,
+ usb_rcvctrlpipe(serial->dev, 0),
+ 6, /* write_room */
+ USB_TYPE_VENDOR | USB_RECIP_INTERFACE
+ | USB_DIR_IN,
+ 0, /* value: 0 means "remaining room" */
+ 0, /* index */
+ &room,
+ 1,
+ 2000);
+ if (rc < 0) {
+ dbg(" roomquery failed");
+ goto exit;
+ }
+ if (rc == 0) {
+ dbg(" roomquery returned 0 bytes");
+ rc = -EIO; /* device didn't return any data */
+ goto exit;
+ }
+ dbg(" roomquery says %d", room);
+ priv->tx_room = room;
+ }
+ if (count > priv->tx_room) {
+ /* we're about to completely fill the Tx buffer, so
+ we'll be throttled afterwards. */
+ count = priv->tx_room;
+ request_unthrottle = 1;
+ }
+
+ if (count) {
+ /* now transfer data */
+ memcpy (port->write_urb->transfer_buffer, buf, count);
+ /* send the data out the bulk port */
+ port->write_urb->transfer_buffer_length = count;
+
+ priv->tx_room -= count;
+
+ port->write_urb->dev = port->serial->dev;
+ rc = usb_submit_urb(port->write_urb, GFP_ATOMIC);
+ if (rc) {
+ dbg(" usb_submit_urb(write bulk) failed");
+ goto exit;
+ }
+ }
+ else {
+ /* There wasn't any room left, so we are throttled until
+ the buffer empties a bit */
+ request_unthrottle = 1;
+ }
+
+ if (request_unthrottle) {
+ priv->tx_throttled = 1; /* block writers */
+ schedule_work(&priv->unthrottle_work);
+ }
+
+ rc = count;
+exit:
+ return rc;
+}
+
+
+static void keyspan_pda_write_bulk_callback (struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+ struct keyspan_pda_private *priv;
+
+ priv = usb_get_serial_port_data(port);
+
+ /* queue up a wakeup at scheduler time */
+ schedule_work(&priv->wakeup_work);
+}
+
+
+static int keyspan_pda_write_room (struct usb_serial_port *port)
+{
+ struct keyspan_pda_private *priv;
+
+ priv = usb_get_serial_port_data(port);
+
+ /* used by n_tty.c for processing of tabs and such. Giving it our
+ conservative guess is probably good enough, but needs testing by
+ running a console through the device. */
+
+ return (priv->tx_room);
+}
+
+
+static int keyspan_pda_chars_in_buffer (struct usb_serial_port *port)
+{
+ struct keyspan_pda_private *priv;
+
+ priv = usb_get_serial_port_data(port);
+
+ /* when throttled, return at least WAKEUP_CHARS to tell select() (via
+ n_tty.c:normal_poll() ) that we're not writeable. */
+ if( port->write_urb->status == -EINPROGRESS || priv->tx_throttled )
+ return 256;
+ return 0;
+}
+
+
+static int keyspan_pda_open (struct usb_serial_port *port, struct file *filp)
+{
+ struct usb_serial *serial = port->serial;
+ unsigned char room;
+ int rc = 0;
+ struct keyspan_pda_private *priv;
+
+ /* find out how much room is in the Tx ring */
+ rc = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+ 6, /* write_room */
+ USB_TYPE_VENDOR | USB_RECIP_INTERFACE
+ | USB_DIR_IN,
+ 0, /* value */
+ 0, /* index */
+ &room,
+ 1,
+ 2000);
+ if (rc < 0) {
+ dbg("%s - roomquery failed", __FUNCTION__);
+ goto error;
+ }
+ if (rc == 0) {
+ dbg("%s - roomquery returned 0 bytes", __FUNCTION__);
+ rc = -EIO;
+ goto error;
+ }
+ priv = usb_get_serial_port_data(port);
+ priv->tx_room = room;
+ priv->tx_throttled = room ? 0 : 1;
+
+ /* the normal serial device seems to always turn on DTR and RTS here,
+ so do the same */
+ if (port->tty->termios->c_cflag & CBAUD)
+ keyspan_pda_set_modem_info(serial, (1<<7) | (1<<2) );
+ else
+ keyspan_pda_set_modem_info(serial, 0);
+
+ /*Start reading from the device*/
+ port->interrupt_in_urb->dev = serial->dev;
+ rc = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
+ if (rc) {
+ dbg("%s - usb_submit_urb(read int) failed", __FUNCTION__);
+ goto error;
+ }
+
+error:
+ return rc;
+}
+
+
+static void keyspan_pda_close(struct usb_serial_port *port, struct file *filp)
+{
+ struct usb_serial *serial = port->serial;
+
+ if (serial->dev) {
+ /* the normal serial device seems to always shut off DTR and RTS now */
+ if (port->tty->termios->c_cflag & HUPCL)
+ keyspan_pda_set_modem_info(serial, 0);
+
+ /* shutdown our bulk reads and writes */
+ usb_kill_urb(port->write_urb);
+ usb_kill_urb(port->interrupt_in_urb);
+ }
+}
+
+
+/* download the firmware to a "fake" device (pre-renumeration) */
+static int keyspan_pda_fake_startup (struct usb_serial *serial)
+{
+ int response;
+ const struct ezusb_hex_record *record = NULL;
+
+ /* download the firmware here ... */
+ response = ezusb_set_reset(serial, 1);
+
+#ifdef KEYSPAN
+ if (le16_to_cpu(serial->dev->descriptor.idVendor) == KEYSPAN_VENDOR_ID)
+ record = &keyspan_pda_firmware[0];
+#endif
+#ifdef XIRCOM
+ if ((le16_to_cpu(serial->dev->descriptor.idVendor) == XIRCOM_VENDOR_ID) ||
+ (le16_to_cpu(serial->dev->descriptor.idVendor) == ENTREGRA_VENDOR_ID))
+ record = &xircom_pgs_firmware[0];
+#endif
+ if (record == NULL) {
+ err("%s: unknown vendor, aborting.", __FUNCTION__);
+ return -ENODEV;
+ }
+
+ while(record->address != 0xffff) {
+ response = ezusb_writememory(serial, record->address,
+ (unsigned char *)record->data,
+ record->data_size, 0xa0);
+ if (response < 0) {
+ err("ezusb_writememory failed for Keyspan PDA "
+ "firmware (%d %04X %p %d)",
+ response,
+ record->address, record->data, record->data_size);
+ break;
+ }
+ record++;
+ }
+ /* bring device out of reset. Renumeration will occur in a moment
+ and the new device will bind to the real driver */
+ response = ezusb_set_reset(serial, 0);
+
+ /* we want this device to fail to have a driver assigned to it. */
+ return (1);
+}
+
+static int keyspan_pda_startup (struct usb_serial *serial)
+{
+
+ struct keyspan_pda_private *priv;
+
+ /* allocate the private data structures for all ports. Well, for all
+ one ports. */
+
+ priv = kmalloc(sizeof(struct keyspan_pda_private), GFP_KERNEL);
+ if (!priv)
+ return (1); /* error */
+ usb_set_serial_port_data(serial->port[0], priv);
+ init_waitqueue_head(&serial->port[0]->write_wait);
+ INIT_WORK(&priv->wakeup_work, (void *)keyspan_pda_wakeup_write,
+ (void *)(serial->port[0]));
+ INIT_WORK(&priv->unthrottle_work,
+ (void *)keyspan_pda_request_unthrottle,
+ (void *)(serial));
+ return (0);
+}
+
+static void keyspan_pda_shutdown (struct usb_serial *serial)
+{
+ dbg("%s", __FUNCTION__);
+
+ kfree(usb_get_serial_port_data(serial->port[0]));
+}
+
+#ifdef KEYSPAN
+static struct usb_serial_device_type keyspan_pda_fake_device = {
+ .owner = THIS_MODULE,
+ .name = "Keyspan PDA - (prerenumeration)",
+ .short_name = "keyspan_pda_pre",
+ .id_table = id_table_fake,
+ .num_interrupt_in = NUM_DONT_CARE,
+ .num_bulk_in = NUM_DONT_CARE,
+ .num_bulk_out = NUM_DONT_CARE,
+ .num_ports = 1,
+ .attach = keyspan_pda_fake_startup,
+};
+#endif
+
+#ifdef XIRCOM
+static struct usb_serial_device_type xircom_pgs_fake_device = {
+ .owner = THIS_MODULE,
+ .name = "Xircom / Entregra PGS - (prerenumeration)",
+ .short_name = "xircom_no_firm",
+ .id_table = id_table_fake_xircom,
+ .num_interrupt_in = NUM_DONT_CARE,
+ .num_bulk_in = NUM_DONT_CARE,
+ .num_bulk_out = NUM_DONT_CARE,
+ .num_ports = 1,
+ .attach = keyspan_pda_fake_startup,
+};
+#endif
+
+static struct usb_serial_device_type keyspan_pda_device = {
+ .owner = THIS_MODULE,
+ .name = "Keyspan PDA",
+ .short_name = "keyspan_pda",
+ .id_table = id_table_std,
+ .num_interrupt_in = 1,
+ .num_bulk_in = 0,
+ .num_bulk_out = 1,
+ .num_ports = 1,
+ .open = keyspan_pda_open,
+ .close = keyspan_pda_close,
+ .write = keyspan_pda_write,
+ .write_room = keyspan_pda_write_room,
+ .write_bulk_callback = keyspan_pda_write_bulk_callback,
+ .read_int_callback = keyspan_pda_rx_interrupt,
+ .chars_in_buffer = keyspan_pda_chars_in_buffer,
+ .throttle = keyspan_pda_rx_throttle,
+ .unthrottle = keyspan_pda_rx_unthrottle,
+ .ioctl = keyspan_pda_ioctl,
+ .set_termios = keyspan_pda_set_termios,
+ .break_ctl = keyspan_pda_break_ctl,
+ .tiocmget = keyspan_pda_tiocmget,
+ .tiocmset = keyspan_pda_tiocmset,
+ .attach = keyspan_pda_startup,
+ .shutdown = keyspan_pda_shutdown,
+};
+
+
+static int __init keyspan_pda_init (void)
+{
+ int retval;
+ retval = usb_serial_register(&keyspan_pda_device);
+ if (retval)
+ goto failed_pda_register;
+#ifdef KEYSPAN
+ retval = usb_serial_register(&keyspan_pda_fake_device);
+ if (retval)
+ goto failed_pda_fake_register;
+#endif
+#ifdef XIRCOM
+ retval = usb_serial_register(&xircom_pgs_fake_device);
+ if (retval)
+ goto failed_xircom_register;
+#endif
+ retval = usb_register(&keyspan_pda_driver);
+ if (retval)
+ goto failed_usb_register;
+ info(DRIVER_DESC " " DRIVER_VERSION);
+ return 0;
+failed_usb_register:
+#ifdef XIRCOM
+ usb_serial_deregister(&xircom_pgs_fake_device);
+failed_xircom_register:
+#endif /* XIRCOM */
+#ifdef KEYSPAN
+ usb_serial_deregister(&keyspan_pda_fake_device);
+#endif
+#ifdef KEYSPAN
+failed_pda_fake_register:
+#endif
+ usb_serial_deregister(&keyspan_pda_device);
+failed_pda_register:
+ return retval;
+}
+
+
+static void __exit keyspan_pda_exit (void)
+{
+ usb_deregister (&keyspan_pda_driver);
+ usb_serial_deregister (&keyspan_pda_device);
+#ifdef KEYSPAN
+ usb_serial_deregister (&keyspan_pda_fake_device);
+#endif
+#ifdef XIRCOM
+ usb_serial_deregister (&xircom_pgs_fake_device);
+#endif
+}
+
+
+module_init(keyspan_pda_init);
+module_exit(keyspan_pda_exit);
+
+MODULE_AUTHOR( DRIVER_AUTHOR );
+MODULE_DESCRIPTION( DRIVER_DESC );
+MODULE_LICENSE("GPL");
+
+module_param(debug, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug enabled or not");
+