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path: root/drivers/usb/serial/keyspan_pda.c
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Diffstat (limited to 'drivers/usb/serial/keyspan_pda.c')
-rw-r--r--drivers/usb/serial/keyspan_pda.c798
1 files changed, 798 insertions, 0 deletions
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
new file mode 100644
index 000000000..4f7e072e4
--- /dev/null
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -0,0 +1,798 @@
+/*
+ * USB Keyspan PDA / Xircom / Entrega 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
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/errno.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 <linux/uaccess.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+#include <linux/usb/ezusb.h>
+
+/* 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
+
+#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;
+ struct usb_serial *serial;
+ struct usb_serial_port *port;
+};
+
+
+#define KEYSPAN_VENDOR_ID 0x06cd
+#define KEYSPAN_PDA_FAKE_ID 0x0103
+#define KEYSPAN_PDA_ID 0x0104 /* no clue */
+
+/* For Xircom PGSDB9 and older Entrega version of the same device */
+#define XIRCOM_VENDOR_ID 0x085a
+#define XIRCOM_FAKE_ID 0x8027
+#define XIRCOM_FAKE_ID_2 0x8025 /* "PGMFHUB" serial */
+#define ENTREGA_VENDOR_ID 0x1645
+#define ENTREGA_FAKE_ID 0x8093
+
+static const 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(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID_2) },
+ { USB_DEVICE(ENTREGA_VENDOR_ID, ENTREGA_FAKE_ID) },
+#endif
+ { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_ID) },
+ { } /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, id_table_combined);
+
+static const struct usb_device_id id_table_std[] = {
+ { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_ID) },
+ { } /* Terminating entry */
+};
+
+#ifdef KEYSPAN
+static const struct usb_device_id id_table_fake[] = {
+ { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_FAKE_ID) },
+ { } /* Terminating entry */
+};
+#endif
+
+#ifdef XIRCOM
+static const struct usb_device_id id_table_fake_xircom[] = {
+ { USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID) },
+ { USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID_2) },
+ { USB_DEVICE(ENTREGA_VENDOR_ID, ENTREGA_FAKE_ID) },
+ { }
+};
+#endif
+
+static void keyspan_pda_wakeup_write(struct work_struct *work)
+{
+ struct keyspan_pda_private *priv =
+ container_of(work, struct keyspan_pda_private, wakeup_work);
+ struct usb_serial_port *port = priv->port;
+
+ tty_port_tty_wakeup(&port->port);
+}
+
+static void keyspan_pda_request_unthrottle(struct work_struct *work)
+{
+ struct keyspan_pda_private *priv =
+ container_of(work, struct keyspan_pda_private, unthrottle_work);
+ struct usb_serial *serial = priv->serial;
+ int result;
+
+ /* 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)
+ dev_dbg(&serial->dev->dev, "%s - error %d from usb_control_msg\n",
+ __func__, result);
+}
+
+
+static void keyspan_pda_rx_interrupt(struct urb *urb)
+{
+ struct usb_serial_port *port = urb->context;
+ unsigned char *data = urb->transfer_buffer;
+ int retval;
+ int status = urb->status;
+ struct keyspan_pda_private *priv;
+ priv = usb_get_serial_port_data(port);
+
+ switch (status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status);
+ return;
+ default:
+ dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n", __func__, 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) {
+ tty_insert_flip_string(&port->port, data + 1,
+ urb->actual_length - 1);
+ tty_flip_buffer_push(&port->port);
+ }
+ break;
+ case 1:
+ /* status interrupt */
+ dev_dbg(&port->dev, "rx int, d1=%d, d2=%d\n", 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:
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval)
+ dev_err(&port->dev,
+ "%s - usb_submit_urb failed with result %d\n",
+ __func__, retval);
+}
+
+
+static void keyspan_pda_rx_throttle(struct tty_struct *tty)
+{
+ /* 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. */
+ struct usb_serial_port *port = tty->driver_data;
+
+ usb_kill_urb(port->interrupt_in_urb);
+}
+
+
+static void keyspan_pda_rx_unthrottle(struct tty_struct *tty)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ /* just restart the receive interrupt URB */
+
+ if (usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL))
+ dev_dbg(&port->dev, "usb_submit_urb(read urb) failed\n");
+}
+
+
+static speed_t keyspan_pda_setbaud(struct usb_serial *serial, speed_t 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:
+ bindex = 5; /* Default to 9600 */
+ baud = 9600;
+ }
+
+ /* 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 */
+ if (rc < 0)
+ return 0;
+ return baud;
+}
+
+
+static void keyspan_pda_break_ctl(struct tty_struct *tty, int break_state)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ 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)
+ dev_dbg(&port->dev, "%s - error %d from usb_control_msg\n",
+ __func__, 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 tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios *old_termios)
+{
+ struct usb_serial *serial = port->serial;
+ speed_t speed;
+
+ /* 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. */
+
+ speed = tty_get_baud_rate(tty);
+ speed = keyspan_pda_setbaud(serial, speed);
+
+ if (speed == 0) {
+ dev_dbg(&port->dev, "can't handle requested baud rate\n");
+ /* It hasn't changed so.. */
+ speed = tty_termios_baud_rate(old_termios);
+ }
+ /* Only speed can change so copy the old h/w parameters
+ then encode the new speed */
+ tty_termios_copy_hw(&tty->termios, old_termios);
+ tty_encode_baud_rate(tty, speed, speed);
+}
+
+
+/* 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;
+ u8 *data;
+
+ data = kmalloc(1, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ 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;
+
+ kfree(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 tty_struct *tty)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ 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 tty_struct *tty,
+ unsigned int set, unsigned int clear)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ 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_write(struct tty_struct *tty,
+ 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. */
+ if (count == 0) {
+ dev_dbg(&port->dev, "write request of 0 bytes\n");
+ 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)
+ */
+ spin_lock_bh(&port->lock);
+ if (!test_bit(0, &port->write_urbs_free) || priv->tx_throttled) {
+ spin_unlock_bh(&port->lock);
+ return 0;
+ }
+ clear_bit(0, &port->write_urbs_free);
+ spin_unlock_bh(&port->lock);
+
+ /* 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()) {
+ u8 *room;
+
+ room = kmalloc(1, GFP_KERNEL);
+ if (!room) {
+ rc = -ENOMEM;
+ goto exit;
+ }
+
+ 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) {
+ dev_dbg(&port->dev, "roomquery says %d\n", *room);
+ priv->tx_room = *room;
+ }
+ kfree(room);
+ if (rc < 0) {
+ dev_dbg(&port->dev, "roomquery failed\n");
+ goto exit;
+ }
+ if (rc == 0) {
+ dev_dbg(&port->dev, "roomquery returned 0 bytes\n");
+ rc = -EIO; /* device didn't return any data */
+ goto exit;
+ }
+ }
+ 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;
+
+ rc = usb_submit_urb(port->write_urb, GFP_ATOMIC);
+ if (rc) {
+ dev_dbg(&port->dev, "usb_submit_urb(write bulk) failed\n");
+ 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:
+ if (rc < 0)
+ set_bit(0, &port->write_urbs_free);
+ return rc;
+}
+
+
+static void keyspan_pda_write_bulk_callback(struct urb *urb)
+{
+ struct usb_serial_port *port = urb->context;
+ struct keyspan_pda_private *priv;
+
+ set_bit(0, &port->write_urbs_free);
+ 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 tty_struct *tty)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ 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 tty_struct *tty)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ struct keyspan_pda_private *priv;
+ unsigned long flags;
+ int ret = 0;
+
+ 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. */
+
+ spin_lock_irqsave(&port->lock, flags);
+ if (!test_bit(0, &port->write_urbs_free) || priv->tx_throttled)
+ ret = 256;
+ spin_unlock_irqrestore(&port->lock, flags);
+ return ret;
+}
+
+
+static void keyspan_pda_dtr_rts(struct usb_serial_port *port, int on)
+{
+ struct usb_serial *serial = port->serial;
+
+ if (on)
+ keyspan_pda_set_modem_info(serial, (1 << 7) | (1 << 2));
+ else
+ keyspan_pda_set_modem_info(serial, 0);
+}
+
+
+static int keyspan_pda_open(struct tty_struct *tty,
+ struct usb_serial_port *port)
+{
+ struct usb_serial *serial = port->serial;
+ u8 *room;
+ int rc = 0;
+ struct keyspan_pda_private *priv;
+
+ /* find out how much room is in the Tx ring */
+ room = kmalloc(1, GFP_KERNEL);
+ if (!room)
+ return -ENOMEM;
+
+ 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) {
+ dev_dbg(&port->dev, "%s - roomquery failed\n", __func__);
+ goto error;
+ }
+ if (rc == 0) {
+ dev_dbg(&port->dev, "%s - roomquery returned 0 bytes\n", __func__);
+ rc = -EIO;
+ goto error;
+ }
+ priv = usb_get_serial_port_data(port);
+ priv->tx_room = *room;
+ priv->tx_throttled = *room ? 0 : 1;
+
+ /*Start reading from the device*/
+ rc = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
+ if (rc) {
+ dev_dbg(&port->dev, "%s - usb_submit_urb(read int) failed\n", __func__);
+ goto error;
+ }
+error:
+ kfree(room);
+ return rc;
+}
+static void keyspan_pda_close(struct usb_serial_port *port)
+{
+ 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 char *fw_name;
+
+ /* download the firmware here ... */
+ response = ezusb_fx1_set_reset(serial->dev, 1);
+
+ if (0) { ; }
+#ifdef KEYSPAN
+ else if (le16_to_cpu(serial->dev->descriptor.idVendor) == KEYSPAN_VENDOR_ID)
+ fw_name = "keyspan_pda/keyspan_pda.fw";
+#endif
+#ifdef XIRCOM
+ else if ((le16_to_cpu(serial->dev->descriptor.idVendor) == XIRCOM_VENDOR_ID) ||
+ (le16_to_cpu(serial->dev->descriptor.idVendor) == ENTREGA_VENDOR_ID))
+ fw_name = "keyspan_pda/xircom_pgs.fw";
+#endif
+ else {
+ dev_err(&serial->dev->dev, "%s: unknown vendor, aborting.\n",
+ __func__);
+ return -ENODEV;
+ }
+
+ if (ezusb_fx1_ihex_firmware_download(serial->dev, fw_name) < 0) {
+ dev_err(&serial->dev->dev, "failed to load firmware \"%s\"\n",
+ fw_name);
+ return -ENOENT;
+ }
+
+ /* after downloading firmware Renumeration will occur in a
+ moment and the new device will bind to the real driver */
+
+ /* we want this device to fail to have a driver assigned to it. */
+ return 1;
+}
+
+#ifdef KEYSPAN
+MODULE_FIRMWARE("keyspan_pda/keyspan_pda.fw");
+#endif
+#ifdef XIRCOM
+MODULE_FIRMWARE("keyspan_pda/xircom_pgs.fw");
+#endif
+
+static int keyspan_pda_port_probe(struct usb_serial_port *port)
+{
+
+ struct keyspan_pda_private *priv;
+
+ priv = kmalloc(sizeof(struct keyspan_pda_private), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ INIT_WORK(&priv->wakeup_work, keyspan_pda_wakeup_write);
+ INIT_WORK(&priv->unthrottle_work, keyspan_pda_request_unthrottle);
+ priv->serial = port->serial;
+ priv->port = port;
+
+ usb_set_serial_port_data(port, priv);
+
+ return 0;
+}
+
+static int keyspan_pda_port_remove(struct usb_serial_port *port)
+{
+ struct keyspan_pda_private *priv;
+
+ priv = usb_get_serial_port_data(port);
+ kfree(priv);
+
+ return 0;
+}
+
+#ifdef KEYSPAN
+static struct usb_serial_driver keyspan_pda_fake_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "keyspan_pda_pre",
+ },
+ .description = "Keyspan PDA - (prerenumeration)",
+ .id_table = id_table_fake,
+ .num_ports = 1,
+ .attach = keyspan_pda_fake_startup,
+};
+#endif
+
+#ifdef XIRCOM
+static struct usb_serial_driver xircom_pgs_fake_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "xircom_no_firm",
+ },
+ .description = "Xircom / Entrega PGS - (prerenumeration)",
+ .id_table = id_table_fake_xircom,
+ .num_ports = 1,
+ .attach = keyspan_pda_fake_startup,
+};
+#endif
+
+static struct usb_serial_driver keyspan_pda_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "keyspan_pda",
+ },
+ .description = "Keyspan PDA",
+ .id_table = id_table_std,
+ .num_ports = 1,
+ .dtr_rts = keyspan_pda_dtr_rts,
+ .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,
+ .set_termios = keyspan_pda_set_termios,
+ .break_ctl = keyspan_pda_break_ctl,
+ .tiocmget = keyspan_pda_tiocmget,
+ .tiocmset = keyspan_pda_tiocmset,
+ .port_probe = keyspan_pda_port_probe,
+ .port_remove = keyspan_pda_port_remove,
+};
+
+static struct usb_serial_driver * const serial_drivers[] = {
+ &keyspan_pda_device,
+#ifdef KEYSPAN
+ &keyspan_pda_fake_device,
+#endif
+#ifdef XIRCOM
+ &xircom_pgs_fake_device,
+#endif
+ NULL
+};
+
+module_usb_serial_driver(serial_drivers, id_table_combined);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-18 00:56:23 +0000