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Diffstat (limited to 'drivers/usb/serial/visor.c')
-rw-r--r--drivers/usb/serial/visor.c1161
1 files changed, 1161 insertions, 0 deletions
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
new file mode 100644
index 000000000000..69d313e98fad
--- /dev/null
+++ b/drivers/usb/serial/visor.c
@@ -0,0 +1,1161 @@
+/*
+ * USB HandSpring Visor, Palm m50x, and Sony Clie driver
+ * (supports all of the Palm OS USB devices)
+ *
+ * Copyright (C) 1999 - 2004
+ * Greg Kroah-Hartman (greg@kroah.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
+ *
+ * (06/03/2003) Judd Montgomery <judd at jpilot.org>
+ * Added support for module parameter options for untested/unknown
+ * devices.
+ *
+ * (03/09/2003) gkh
+ * Added support for the Sony Clie NZ90V device. Thanks to Martin Brachtl
+ * <brachtl@redgrep.cz> for the information.
+ *
+ * (03/05/2003) gkh
+ * Think Treo support is now working.
+ *
+ * (04/03/2002) gkh
+ * Added support for the Sony OS 4.1 devices. Thanks to Hiroyuki ARAKI
+ * <hiro@zob.ne.jp> for the information.
+ *
+ * (03/27/2002) gkh
+ * Removed assumptions that port->tty was always valid (is not true
+ * for usb serial console devices.)
+ *
+ * (03/23/2002) gkh
+ * Added support for the Palm i705 device, thanks to Thomas Riemer
+ * <tom@netmech.com> for the information.
+ *
+ * (03/21/2002) gkh
+ * Added support for the Palm m130 device, thanks to Udo Eisenbarth
+ * <udo.eisenbarth@web.de> for the information.
+ *
+ * (02/27/2002) gkh
+ * Reworked the urb handling logic. We have no more pool, but dynamically
+ * allocate the urb and the transfer buffer on the fly. In testing this
+ * does not incure any measurable overhead. This also relies on the fact
+ * that we have proper reference counting logic for urbs.
+ *
+ * (02/21/2002) SilaS
+ * Added initial support for the Palm m515 devices.
+ *
+ * (02/14/2002) gkh
+ * Added support for the Clie S-360 device.
+ *
+ * (12/18/2001) gkh
+ * Added better Clie support for 3.5 devices. Thanks to Geoffrey Levand
+ * for the patch.
+ *
+ * (11/11/2001) gkh
+ * Added support for the m125 devices, and added check to prevent oopses
+ * for Clié devices that lie about the number of ports they have.
+ *
+ * (08/30/2001) gkh
+ * Added support for the Clie devices, both the 3.5 and 4.0 os versions.
+ * Many thanks to Daniel Burke, and Bryan Payne for helping with this.
+ *
+ * (08/23/2001) gkh
+ * fixed a few potential bugs pointed out by Oliver Neukum.
+ *
+ * (05/30/2001) gkh
+ * switched from using spinlock to a semaphore, which fixes lots of problems.
+ *
+ * (05/28/2000) gkh
+ * Added initial support for the Palm m500 and Palm m505 devices.
+ *
+ * (04/08/2001) gb
+ * Identify version on module load.
+ *
+ * (01/21/2000) gkh
+ * Added write_room and chars_in_buffer, as they were previously using the
+ * generic driver versions which is all wrong now that we are using an urb
+ * pool. Thanks to Wolfgang Grandegger for pointing this out to me.
+ * Removed count assignment in the write function, which was not needed anymore
+ * either. Thanks to Al Borchers for pointing this out.
+ *
+ * (12/12/2000) gkh
+ * Moved MOD_DEC to end of visor_close to be nicer, as the final write
+ * message can sleep.
+ *
+ * (11/12/2000) gkh
+ * Fixed bug with data being dropped on the floor by forcing tty->low_latency
+ * to be on. Hopefully this fixes the OHCI issue!
+ *
+ * (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.
+ *
+ * (09/11/2000) gkh
+ * Got rid of always calling kmalloc for every urb we wrote out to the
+ * device.
+ * Added visor_read_callback so we can keep track of bytes in and out for
+ * those people who like to know the speed of their device.
+ * Removed DEBUG #ifdefs with call to usb_serial_debug_data
+ *
+ * (09/06/2000) gkh
+ * Fixed oops in visor_exit. Need to uncomment usb_unlink_urb call _after_
+ * the host controller drivers set urb->dev = NULL when the urb is finished.
+ *
+ * (08/28/2000) gkh
+ * Added locks for SMP safeness.
+ *
+ * (08/08/2000) gkh
+ * Fixed endian problem in visor_startup.
+ * Fixed MOD_INC and MOD_DEC logic and the ability to open a port more
+ * than once.
+ *
+ * (07/23/2000) gkh
+ * Added pool of write urbs to speed up transfers to the visor.
+ *
+ * (07/19/2000) gkh
+ * Added module_init and module_exit functions to handle the fact that this
+ * driver is a loadable module now.
+ *
+ * (07/03/2000) gkh
+ * Added visor_set_ioctl and visor_set_termios functions (they don't do much
+ * of anything, but are good for debugging.)
+ *
+ * (06/25/2000) gkh
+ * Fixed bug in visor_unthrottle that should help with the disconnect in PPP
+ * bug that people have been reporting.
+ *
+ * (06/23/2000) gkh
+ * Cleaned up debugging statements in a quest to find UHCI timeout bug.
+ *
+ * (04/27/2000) Ryan VanderBijl
+ * Fixed memory leak in visor_close
+ *
+ * (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/moduleparam.h>
+#include <linux/spinlock.h>
+#include <asm/uaccess.h>
+#include <linux/usb.h>
+#include "usb-serial.h"
+#include "visor.h"
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v2.1"
+#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
+#define DRIVER_DESC "USB HandSpring Visor / Palm OS driver"
+
+/* function prototypes for a handspring visor */
+static int visor_open (struct usb_serial_port *port, struct file *filp);
+static void visor_close (struct usb_serial_port *port, struct file *filp);
+static int visor_write (struct usb_serial_port *port, const unsigned char *buf, int count);
+static int visor_write_room (struct usb_serial_port *port);
+static int visor_chars_in_buffer (struct usb_serial_port *port);
+static void visor_throttle (struct usb_serial_port *port);
+static void visor_unthrottle (struct usb_serial_port *port);
+static int visor_probe (struct usb_serial *serial, const struct usb_device_id *id);
+static int visor_calc_num_ports(struct usb_serial *serial);
+static void visor_shutdown (struct usb_serial *serial);
+static int visor_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
+static void visor_set_termios (struct usb_serial_port *port, struct termios *old_termios);
+static void visor_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
+static void visor_read_bulk_callback (struct urb *urb, struct pt_regs *regs);
+static void visor_read_int_callback (struct urb *urb, struct pt_regs *regs);
+static int clie_3_5_startup (struct usb_serial *serial);
+static int treo_attach (struct usb_serial *serial);
+static int clie_5_attach (struct usb_serial *serial);
+static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_id *id);
+static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_id *id);
+
+/* Parameters that may be passed into the module. */
+static int debug;
+static __u16 vendor;
+static __u16 product;
+
+static struct usb_device_id id_table [] = {
+ { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_3_probe },
+ { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE31_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { }, /* optional parameter entry */
+ { } /* Terminating entry */
+};
+
+static struct usb_device_id clie_id_5_table [] = {
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe },
+ { }, /* optional parameter entry */
+ { } /* Terminating entry */
+};
+
+static struct usb_device_id clie_id_3_5_table [] = {
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
+ { } /* Terminating entry */
+};
+
+static struct usb_device_id id_table_combined [] = {
+ { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) },
+ { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) },
+ { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID) },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID) },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID) },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID) },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID) },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID) },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID) },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID) },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID) },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE31_ID) },
+ { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID) },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID) },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID) },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID) },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID) },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID) },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID) },
+ { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID) },
+ { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID) },
+ { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID) },
+ { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID) },
+ { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID) },
+ { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID) },
+ { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID) },
+ { }, /* optional parameter entry */
+ { } /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, id_table_combined);
+
+static struct usb_driver visor_driver = {
+ .owner = THIS_MODULE,
+ .name = "visor",
+ .probe = usb_serial_probe,
+ .disconnect = usb_serial_disconnect,
+ .id_table = id_table_combined,
+};
+
+/* All of the device info needed for the Handspring Visor, and Palm 4.0 devices */
+static struct usb_serial_device_type handspring_device = {
+ .owner = THIS_MODULE,
+ .name = "Handspring Visor / Palm OS",
+ .short_name = "visor",
+ .id_table = id_table,
+ .num_interrupt_in = NUM_DONT_CARE,
+ .num_bulk_in = 2,
+ .num_bulk_out = 2,
+ .num_ports = 2,
+ .open = visor_open,
+ .close = visor_close,
+ .throttle = visor_throttle,
+ .unthrottle = visor_unthrottle,
+ .attach = treo_attach,
+ .probe = visor_probe,
+ .calc_num_ports = visor_calc_num_ports,
+ .shutdown = visor_shutdown,
+ .ioctl = visor_ioctl,
+ .set_termios = visor_set_termios,
+ .write = visor_write,
+ .write_room = visor_write_room,
+ .chars_in_buffer = visor_chars_in_buffer,
+ .write_bulk_callback = visor_write_bulk_callback,
+ .read_bulk_callback = visor_read_bulk_callback,
+ .read_int_callback = visor_read_int_callback,
+};
+
+/* All of the device info needed for the Clie UX50, TH55 Palm 5.0 devices */
+static struct usb_serial_device_type clie_5_device = {
+ .owner = THIS_MODULE,
+ .name = "Sony Clie 5.0",
+ .short_name = "clie_5",
+ .id_table = clie_id_5_table,
+ .num_interrupt_in = NUM_DONT_CARE,
+ .num_bulk_in = 2,
+ .num_bulk_out = 2,
+ .num_ports = 2,
+ .open = visor_open,
+ .close = visor_close,
+ .throttle = visor_throttle,
+ .unthrottle = visor_unthrottle,
+ .attach = clie_5_attach,
+ .probe = visor_probe,
+ .calc_num_ports = visor_calc_num_ports,
+ .shutdown = visor_shutdown,
+ .ioctl = visor_ioctl,
+ .set_termios = visor_set_termios,
+ .write = visor_write,
+ .write_room = visor_write_room,
+ .chars_in_buffer = visor_chars_in_buffer,
+ .write_bulk_callback = visor_write_bulk_callback,
+ .read_bulk_callback = visor_read_bulk_callback,
+ .read_int_callback = visor_read_int_callback,
+};
+
+/* device info for the Sony Clie OS version 3.5 */
+static struct usb_serial_device_type clie_3_5_device = {
+ .owner = THIS_MODULE,
+ .name = "Sony Clie 3.5",
+ .short_name = "clie_3.5",
+ .id_table = clie_id_3_5_table,
+ .num_interrupt_in = 0,
+ .num_bulk_in = 1,
+ .num_bulk_out = 1,
+ .num_ports = 1,
+ .open = visor_open,
+ .close = visor_close,
+ .throttle = visor_throttle,
+ .unthrottle = visor_unthrottle,
+ .attach = clie_3_5_startup,
+ .ioctl = visor_ioctl,
+ .set_termios = visor_set_termios,
+ .write = visor_write,
+ .write_room = visor_write_room,
+ .chars_in_buffer = visor_chars_in_buffer,
+ .write_bulk_callback = visor_write_bulk_callback,
+ .read_bulk_callback = visor_read_bulk_callback,
+};
+
+struct visor_private {
+ spinlock_t lock;
+ int bytes_in;
+ int bytes_out;
+ int outstanding_urbs;
+ int throttled;
+};
+
+/* number of outstanding urbs to prevent userspace DoS from happening */
+#define URB_UPPER_LIMIT 42
+
+static int stats;
+
+/******************************************************************************
+ * Handspring Visor specific driver functions
+ ******************************************************************************/
+static int visor_open (struct usb_serial_port *port, struct file *filp)
+{
+ struct usb_serial *serial = port->serial;
+ struct visor_private *priv = usb_get_serial_port_data(port);
+ unsigned long flags;
+ int result = 0;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (!port->read_urb) {
+ /* this is needed for some brain dead Sony devices */
+ dev_err(&port->dev, "Device lied about number of ports, please use a lower one.\n");
+ return -ENODEV;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->bytes_in = 0;
+ priv->bytes_out = 0;
+ priv->outstanding_urbs = 0;
+ priv->throttled = 0;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ /*
+ * Force low_latency on so that our tty_push actually forces the data
+ * through, otherwise it is scheduled, and with high data rates (like
+ * with OHCI) data can get lost.
+ */
+ if (port->tty)
+ port->tty->low_latency = 1;
+
+ /* Start reading from the device */
+ usb_fill_bulk_urb (port->read_urb, serial->dev,
+ usb_rcvbulkpipe (serial->dev,
+ port->bulk_in_endpointAddress),
+ port->read_urb->transfer_buffer,
+ port->read_urb->transfer_buffer_length,
+ visor_read_bulk_callback, port);
+ result = usb_submit_urb(port->read_urb, GFP_KERNEL);
+ if (result) {
+ dev_err(&port->dev, "%s - failed submitting read urb, error %d\n",
+ __FUNCTION__, result);
+ goto exit;
+ }
+
+ if (port->interrupt_in_urb) {
+ dbg("%s - adding interrupt input for treo", __FUNCTION__);
+ result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
+ if (result)
+ dev_err(&port->dev, "%s - failed submitting interrupt urb, error %d\n",
+ __FUNCTION__, result);
+ }
+exit:
+ return result;
+}
+
+
+static void visor_close (struct usb_serial_port *port, struct file * filp)
+{
+ struct visor_private *priv = usb_get_serial_port_data(port);
+ unsigned char *transfer_buffer;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ /* shutdown our urbs */
+ usb_kill_urb(port->read_urb);
+ if (port->interrupt_in_urb)
+ usb_kill_urb(port->interrupt_in_urb);
+
+ /* Try to send shutdown message, if the device is gone, this will just fail. */
+ transfer_buffer = kmalloc (0x12, GFP_KERNEL);
+ if (transfer_buffer) {
+ usb_control_msg (port->serial->dev,
+ usb_rcvctrlpipe(port->serial->dev, 0),
+ VISOR_CLOSE_NOTIFICATION, 0xc2,
+ 0x0000, 0x0000,
+ transfer_buffer, 0x12, 300);
+ kfree (transfer_buffer);
+ }
+
+ if (stats)
+ dev_info(&port->dev, "Bytes In = %d Bytes Out = %d\n",
+ priv->bytes_in, priv->bytes_out);
+}
+
+
+static int visor_write (struct usb_serial_port *port, const unsigned char *buf, int count)
+{
+ struct visor_private *priv = usb_get_serial_port_data(port);
+ struct usb_serial *serial = port->serial;
+ struct urb *urb;
+ unsigned char *buffer;
+ unsigned long flags;
+ int status;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (priv->outstanding_urbs > URB_UPPER_LIMIT) {
+ spin_unlock_irqrestore(&priv->lock, flags);
+ dbg("%s - write limit hit\n", __FUNCTION__);
+ return 0;
+ }
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ buffer = kmalloc (count, GFP_ATOMIC);
+ if (!buffer) {
+ dev_err(&port->dev, "out of memory\n");
+ return -ENOMEM;
+ }
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb) {
+ dev_err(&port->dev, "no more free urbs\n");
+ kfree (buffer);
+ return -ENOMEM;
+ }
+
+ memcpy (buffer, buf, count);
+
+ usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer);
+
+ usb_fill_bulk_urb (urb, serial->dev,
+ usb_sndbulkpipe (serial->dev,
+ port->bulk_out_endpointAddress),
+ buffer, count,
+ visor_write_bulk_callback, port);
+
+ /* send it down the pipe */
+ status = usb_submit_urb(urb, GFP_ATOMIC);
+ if (status) {
+ dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed with status = %d\n",
+ __FUNCTION__, status);
+ count = status;
+ kfree (buffer);
+ } else {
+ spin_lock_irqsave(&priv->lock, flags);
+ ++priv->outstanding_urbs;
+ priv->bytes_out += count;
+ spin_unlock_irqrestore(&priv->lock, flags);
+ }
+
+ /* we are done with this urb, so let the host driver
+ * really free it when it is finished with it */
+ usb_free_urb (urb);
+
+ return count;
+}
+
+
+static int visor_write_room (struct usb_serial_port *port)
+{
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ /*
+ * We really can take anything the user throws at us
+ * but let's pick a nice big number to tell the tty
+ * layer that we have lots of free space
+ */
+ return 2048;
+}
+
+
+static int visor_chars_in_buffer (struct usb_serial_port *port)
+{
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ /*
+ * We can't really account for how much data we
+ * have sent out, but hasn't made it through to the
+ * device, so just tell the tty layer that everything
+ * is flushed.
+ */
+ return 0;
+}
+
+
+static void visor_write_bulk_callback (struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+ struct visor_private *priv = usb_get_serial_port_data(port);
+ unsigned long flags;
+
+ /* free up the transfer buffer, as usb_free_urb() does not do this */
+ kfree (urb->transfer_buffer);
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (urb->status)
+ dbg("%s - nonzero write bulk status received: %d",
+ __FUNCTION__, urb->status);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ --priv->outstanding_urbs;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ schedule_work(&port->work);
+}
+
+
+static void visor_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+ struct visor_private *priv = usb_get_serial_port_data(port);
+ unsigned char *data = urb->transfer_buffer;
+ struct tty_struct *tty;
+ unsigned long flags;
+ int i;
+ int throttled;
+ int result;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (urb->status) {
+ dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status);
+ return;
+ }
+
+ usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
+
+ tty = port->tty;
+ if (tty && urb->actual_length) {
+ for (i = 0; i < urb->actual_length ; ++i) {
+ /* if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. */
+ if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
+ tty_flip_buffer_push(tty);
+ }
+ /* this doesn't actually push the data through unless tty->low_latency is set */
+ tty_insert_flip_char(tty, data[i], 0);
+ }
+ tty_flip_buffer_push(tty);
+ }
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->bytes_in += urb->actual_length;
+ throttled = priv->throttled;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ /* Continue trying to always read if we should */
+ if (!throttled) {
+ usb_fill_bulk_urb (port->read_urb, port->serial->dev,
+ usb_rcvbulkpipe(port->serial->dev,
+ port->bulk_in_endpointAddress),
+ port->read_urb->transfer_buffer,
+ port->read_urb->transfer_buffer_length,
+ visor_read_bulk_callback, port);
+ result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
+ if (result)
+ dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result);
+ }
+ return;
+}
+
+static void visor_read_int_callback (struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+ int result;
+
+ 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;
+ }
+
+ /*
+ * This information is still unknown what it can be used for.
+ * If anyone has an idea, please let the author know...
+ *
+ * Rumor has it this endpoint is used to notify when data
+ * is ready to be read from the bulk ones.
+ */
+ usb_serial_debug_data(debug, &port->dev, __FUNCTION__,
+ urb->actual_length, urb->transfer_buffer);
+
+exit:
+ result = usb_submit_urb (urb, GFP_ATOMIC);
+ if (result)
+ dev_err(&urb->dev->dev, "%s - Error %d submitting interrupt urb\n",
+ __FUNCTION__, result);
+}
+
+static void visor_throttle (struct usb_serial_port *port)
+{
+ struct visor_private *priv = usb_get_serial_port_data(port);
+ unsigned long flags;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->throttled = 1;
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+
+static void visor_unthrottle (struct usb_serial_port *port)
+{
+ struct visor_private *priv = usb_get_serial_port_data(port);
+ unsigned long flags;
+ int result;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->throttled = 0;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ port->read_urb->dev = port->serial->dev;
+ result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
+ if (result)
+ dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __FUNCTION__, result);
+}
+
+static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_id *id)
+{
+ struct device *dev = &serial->dev->dev;
+ struct visor_connection_info *connection_info;
+ unsigned char *transfer_buffer;
+ char *string;
+ int retval = 0;
+ int i;
+ int num_ports = 0;
+
+ dbg("%s", __FUNCTION__);
+
+ transfer_buffer = kmalloc (sizeof (*connection_info), GFP_KERNEL);
+ if (!transfer_buffer) {
+ dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __FUNCTION__,
+ sizeof(*connection_info));
+ return -ENOMEM;
+ }
+
+ /* send a get connection info request */
+ retval = usb_control_msg (serial->dev,
+ usb_rcvctrlpipe(serial->dev, 0),
+ VISOR_GET_CONNECTION_INFORMATION,
+ 0xc2, 0x0000, 0x0000, transfer_buffer,
+ sizeof(*connection_info), 300);
+ if (retval < 0) {
+ dev_err(dev, "%s - error %d getting connection information\n",
+ __FUNCTION__, retval);
+ goto exit;
+ }
+
+ if (retval == sizeof(*connection_info)) {
+ connection_info = (struct visor_connection_info *)transfer_buffer;
+
+ num_ports = le16_to_cpu(connection_info->num_ports);
+ for (i = 0; i < num_ports; ++i) {
+ switch (connection_info->connections[i].port_function_id) {
+ case VISOR_FUNCTION_GENERIC:
+ string = "Generic";
+ break;
+ case VISOR_FUNCTION_DEBUGGER:
+ string = "Debugger";
+ break;
+ case VISOR_FUNCTION_HOTSYNC:
+ string = "HotSync";
+ break;
+ case VISOR_FUNCTION_CONSOLE:
+ string = "Console";
+ break;
+ case VISOR_FUNCTION_REMOTE_FILE_SYS:
+ string = "Remote File System";
+ break;
+ default:
+ string = "unknown";
+ break;
+ }
+ dev_info(dev, "%s: port %d, is for %s use\n",
+ serial->type->name,
+ connection_info->connections[i].port, string);
+ }
+ }
+ /*
+ * Handle devices that report invalid stuff here.
+ */
+ if (num_ports == 0 || num_ports > 2) {
+ dev_warn (dev, "%s: No valid connect info available\n",
+ serial->type->name);
+ num_ports = 2;
+ }
+
+ dev_info(dev, "%s: Number of ports: %d\n", serial->type->name,
+ num_ports);
+
+ /*
+ * save off our num_ports info so that we can use it in the
+ * calc_num_ports callback
+ */
+ usb_set_serial_data(serial, (void *)(long)num_ports);
+
+ /* ask for the number of bytes available, but ignore the response as it is broken */
+ retval = usb_control_msg (serial->dev,
+ usb_rcvctrlpipe(serial->dev, 0),
+ VISOR_REQUEST_BYTES_AVAILABLE,
+ 0xc2, 0x0000, 0x0005, transfer_buffer,
+ 0x02, 300);
+ if (retval < 0)
+ dev_err(dev, "%s - error %d getting bytes available request\n",
+ __FUNCTION__, retval);
+ retval = 0;
+
+exit:
+ kfree (transfer_buffer);
+
+ return retval;
+}
+
+static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_id *id)
+{
+ struct device *dev = &serial->dev->dev;
+ struct palm_ext_connection_info *connection_info;
+ unsigned char *transfer_buffer;
+ int retval;
+
+ dbg("%s", __FUNCTION__);
+
+ transfer_buffer = kmalloc (sizeof (*connection_info), GFP_KERNEL);
+ if (!transfer_buffer) {
+ dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __FUNCTION__,
+ sizeof(*connection_info));
+ return -ENOMEM;
+ }
+
+ retval = usb_control_msg (serial->dev,
+ usb_rcvctrlpipe(serial->dev, 0),
+ PALM_GET_EXT_CONNECTION_INFORMATION,
+ 0xc2, 0x0000, 0x0000, transfer_buffer,
+ sizeof (*connection_info), 300);
+ if (retval < 0)
+ dev_err(dev, "%s - error %d getting connection info\n",
+ __FUNCTION__, retval);
+ else
+ usb_serial_debug_data(debug, &serial->dev->dev, __FUNCTION__,
+ retval, transfer_buffer);
+
+ kfree (transfer_buffer);
+ return 0;
+}
+
+
+static int visor_probe (struct usb_serial *serial, const struct usb_device_id *id)
+{
+ int retval = 0;
+ int (*startup) (struct usb_serial *serial, const struct usb_device_id *id);
+
+ dbg("%s", __FUNCTION__);
+
+ if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
+ err("active config #%d != 1 ??",
+ serial->dev->actconfig->desc.bConfigurationValue);
+ return -ENODEV;
+ }
+
+ if (id->driver_info) {
+ startup = (void *)id->driver_info;
+ retval = startup(serial, id);
+ }
+
+ return retval;
+}
+
+static int visor_calc_num_ports (struct usb_serial *serial)
+{
+ int num_ports = (int)(long)(usb_get_serial_data(serial));
+
+ if (num_ports)
+ usb_set_serial_data(serial, NULL);
+
+ return num_ports;
+}
+
+static int generic_startup(struct usb_serial *serial)
+{
+ struct visor_private *priv;
+ int i;
+
+ for (i = 0; i < serial->num_ports; ++i) {
+ priv = kmalloc (sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+ memset (priv, 0x00, sizeof(*priv));
+ spin_lock_init(&priv->lock);
+ usb_set_serial_port_data(serial->port[i], priv);
+ }
+ return 0;
+}
+
+static int clie_3_5_startup (struct usb_serial *serial)
+{
+ struct device *dev = &serial->dev->dev;
+ int result;
+ u8 data;
+
+ dbg("%s", __FUNCTION__);
+
+ /*
+ * Note that PEG-300 series devices expect the following two calls.
+ */
+
+ /* get the config number */
+ result = usb_control_msg (serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+ USB_REQ_GET_CONFIGURATION, USB_DIR_IN,
+ 0, 0, &data, 1, 3000);
+ if (result < 0) {
+ dev_err(dev, "%s: get config number failed: %d\n", __FUNCTION__, result);
+ return result;
+ }
+ if (result != 1) {
+ dev_err(dev, "%s: get config number bad return length: %d\n", __FUNCTION__, result);
+ return -EIO;
+ }
+
+ /* get the interface number */
+ result = usb_control_msg (serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+ USB_REQ_GET_INTERFACE,
+ USB_DIR_IN | USB_RECIP_INTERFACE,
+ 0, 0, &data, 1, 3000);
+ if (result < 0) {
+ dev_err(dev, "%s: get interface number failed: %d\n", __FUNCTION__, result);
+ return result;
+ }
+ if (result != 1) {
+ dev_err(dev, "%s: get interface number bad return length: %d\n", __FUNCTION__, result);
+ return -EIO;
+ }
+
+ return generic_startup(serial);
+}
+
+static int treo_attach (struct usb_serial *serial)
+{
+ struct usb_serial_port *swap_port;
+
+ /* Only do this endpoint hack for the Handspring devices with
+ * interrupt in endpoints, which for now are the Treo devices. */
+ if (!((le16_to_cpu(serial->dev->descriptor.idVendor) == HANDSPRING_VENDOR_ID) ||
+ (le16_to_cpu(serial->dev->descriptor.idVendor) == KYOCERA_VENDOR_ID)) ||
+ (serial->num_interrupt_in == 0))
+ goto generic_startup;
+
+ dbg("%s", __FUNCTION__);
+
+ /*
+ * It appears that Treos and Kyoceras want to use the
+ * 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
+ * so let's swap the 1st and 2nd bulk in and interrupt endpoints.
+ * Note that swapping the bulk out endpoints would break lots of
+ * apps that want to communicate on the second port.
+ */
+#define COPY_PORT(dest, src) \
+ dest->read_urb = src->read_urb; \
+ dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress; \
+ dest->bulk_in_buffer = src->bulk_in_buffer; \
+ dest->interrupt_in_urb = src->interrupt_in_urb; \
+ dest->interrupt_in_endpointAddress = src->interrupt_in_endpointAddress; \
+ dest->interrupt_in_buffer = src->interrupt_in_buffer;
+
+ swap_port = kmalloc(sizeof(*swap_port), GFP_KERNEL);
+ if (!swap_port)
+ return -ENOMEM;
+ COPY_PORT(swap_port, serial->port[0]);
+ COPY_PORT(serial->port[0], serial->port[1]);
+ COPY_PORT(serial->port[1], swap_port);
+ kfree(swap_port);
+
+generic_startup:
+ return generic_startup(serial);
+}
+
+static int clie_5_attach (struct usb_serial *serial)
+{
+ dbg("%s", __FUNCTION__);
+
+ /* TH55 registers 2 ports.
+ Communication in from the UX50/TH55 uses bulk_in_endpointAddress from port 0
+ Communication out to the UX50/TH55 uses bulk_out_endpointAddress from port 1
+
+ Lets do a quick and dirty mapping
+ */
+
+ /* some sanity check */
+ if (serial->num_ports < 2)
+ return -1;
+
+ /* port 0 now uses the modified endpoint Address */
+ serial->port[0]->bulk_out_endpointAddress = serial->port[1]->bulk_out_endpointAddress;
+
+ return generic_startup(serial);
+}
+
+static void visor_shutdown (struct usb_serial *serial)
+{
+ dbg("%s", __FUNCTION__);
+}
+
+static int visor_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
+{
+ dbg("%s - port %d, cmd 0x%.4x", __FUNCTION__, port->number, cmd);
+
+ return -ENOIOCTLCMD;
+}
+
+
+/* This function is all nice and good, but we don't change anything based on it :) */
+static void visor_set_termios (struct usb_serial_port *port, struct termios *old_termios)
+{
+ unsigned int cflag;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if ((!port->tty) || (!port->tty->termios)) {
+ dbg("%s - no tty structures", __FUNCTION__);
+ return;
+ }
+
+ cflag = port->tty->termios->c_cflag;
+ /* check that they really want us to change something */
+ if (old_termios) {
+ if ((cflag == old_termios->c_cflag) &&
+ (RELEVANT_IFLAG(port->tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag))) {
+ dbg("%s - nothing to change...", __FUNCTION__);
+ return;
+ }
+ }
+
+ /* get the byte size */
+ switch (cflag & CSIZE) {
+ case CS5: dbg("%s - data bits = 5", __FUNCTION__); break;
+ case CS6: dbg("%s - data bits = 6", __FUNCTION__); break;
+ case CS7: dbg("%s - data bits = 7", __FUNCTION__); break;
+ default:
+ case CS8: dbg("%s - data bits = 8", __FUNCTION__); break;
+ }
+
+ /* determine the parity */
+ if (cflag & PARENB)
+ if (cflag & PARODD)
+ dbg("%s - parity = odd", __FUNCTION__);
+ else
+ dbg("%s - parity = even", __FUNCTION__);
+ else
+ dbg("%s - parity = none", __FUNCTION__);
+
+ /* figure out the stop bits requested */
+ if (cflag & CSTOPB)
+ dbg("%s - stop bits = 2", __FUNCTION__);
+ else
+ dbg("%s - stop bits = 1", __FUNCTION__);
+
+
+ /* figure out the flow control settings */
+ if (cflag & CRTSCTS)
+ dbg("%s - RTS/CTS is enabled", __FUNCTION__);
+ else
+ dbg("%s - RTS/CTS is disabled", __FUNCTION__);
+
+ /* determine software flow control */
+ if (I_IXOFF(port->tty))
+ dbg("%s - XON/XOFF is enabled, XON = %2x, XOFF = %2x",
+ __FUNCTION__, START_CHAR(port->tty), STOP_CHAR(port->tty));
+ else
+ dbg("%s - XON/XOFF is disabled", __FUNCTION__);
+
+ /* get the baud rate wanted */
+ dbg("%s - baud rate = %d", __FUNCTION__, tty_get_baud_rate(port->tty));
+
+ return;
+}
+
+
+static int __init visor_init (void)
+{
+ int i, retval;
+ /* Only if parameters were passed to us */
+ if ((vendor>0) && (product>0)) {
+ struct usb_device_id usb_dev_temp[]=
+ {{USB_DEVICE(vendor, product),
+ .driver_info = (kernel_ulong_t)&palm_os_4_probe }};
+
+ /* Find the last entry in id_table */
+ for (i=0; ; i++) {
+ if (id_table[i].idVendor==0) {
+ id_table[i] = usb_dev_temp[0];
+ break;
+ }
+ }
+ /* Find the last entry in id_table_combined */
+ for (i=0; ; i++) {
+ if (id_table_combined[i].idVendor==0) {
+ id_table_combined[i] = usb_dev_temp[0];
+ break;
+ }
+ }
+ info("Untested USB device specified at time of module insertion");
+ info("Warning: This is not guaranteed to work");
+ info("Using a newer kernel is preferred to this method");
+ info("Adding Palm OS protocol 4.x support for unknown device: 0x%x/0x%x",
+ vendor, product);
+ }
+ retval = usb_serial_register(&handspring_device);
+ if (retval)
+ goto failed_handspring_register;
+ retval = usb_serial_register(&clie_3_5_device);
+ if (retval)
+ goto failed_clie_3_5_register;
+ retval = usb_serial_register(&clie_5_device);
+ if (retval)
+ goto failed_clie_5_register;
+ retval = usb_register(&visor_driver);
+ if (retval)
+ goto failed_usb_register;
+ info(DRIVER_DESC " " DRIVER_VERSION);
+
+ return 0;
+failed_usb_register:
+ usb_serial_deregister(&clie_5_device);
+failed_clie_5_register:
+ usb_serial_deregister(&clie_3_5_device);
+failed_clie_3_5_register:
+ usb_serial_deregister(&handspring_device);
+failed_handspring_register:
+ return retval;
+}
+
+
+static void __exit visor_exit (void)
+{
+ usb_deregister (&visor_driver);
+ usb_serial_deregister (&handspring_device);
+ usb_serial_deregister (&clie_3_5_device);
+ usb_serial_deregister (&clie_5_device);
+}
+
+
+module_init(visor_init);
+module_exit(visor_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");
+module_param(stats, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(stats, "Enables statistics or not");
+
+module_param(vendor, ushort, 0);
+MODULE_PARM_DESC(vendor, "User specified vendor ID");
+module_param(product, ushort, 0);
+MODULE_PARM_DESC(product, "User specified product ID");
+
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-03 12:04:07 +0000