linux/drivers/usb/serial/ipaq.c

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/*
* USB Compaq iPAQ driver
*
* Copyright (C) 2001 - 2002
* Ganesh Varadarajan <ganesh@veritas.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.
*
* (12/12/2002) ganesh
* Added support for practically all devices supported by ActiveSync
* on Windows. Thanks to Wes Cilldhaire <billybobjoehenrybob@hotmail.com>.
*
* (26/11/2002) ganesh
* Added insmod options to specify product and vendor id.
* Use modprobe ipaq vendor=0xfoo product=0xbar
*
* (26/7/2002) ganesh
* Fixed up broken error handling in ipaq_open. Retry the "kickstart"
* packet much harder - this drastically reduces connection failures.
*
* (30/4/2002) ganesh
* Added support for the Casio EM500. Completely untested. Thanks
* to info from Nathan <wfilardo@fuse.net>
*
* (19/3/2002) ganesh
* Don't submit urbs while holding spinlocks. Not strictly necessary
* in 2.5.x.
*
* (8/3/2002) ganesh
* The ipaq sometimes emits a '\0' before the CLIENT string. At this
* point of time, the ppp ldisc is not yet attached to the tty, so
* n_tty echoes "^ " to the ipaq, which messes up the chat. In 2.5.6-pre2
* this causes a panic because echo_char() tries to sleep in interrupt
* context.
* The fix is to tell the upper layers that this is a raw device so that
* echoing is suppressed. Thanks to Lyle Lindholm for a detailed bug
* report.
*
* (25/2/2002) ganesh
* Added support for the HP Jornada 548 and 568. Completely untested.
* Thanks to info from Heath Robinson and Arieh Davidoff.
*/
#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/uaccess.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include "ipaq.h"
#define KP_RETRIES 100
/*
* Version Information
*/
#define DRIVER_VERSION "v0.5"
#define DRIVER_AUTHOR "Ganesh Varadarajan <ganesh@veritas.com>"
#define DRIVER_DESC "USB PocketPC PDA driver"
static __u16 product, vendor;
static int debug;
static int connect_retries = KP_RETRIES;
static int initial_wait;
/* Function prototypes for an ipaq */
static int ipaq_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
static void ipaq_close(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
static int ipaq_startup(struct usb_serial *serial);
static void ipaq_shutdown(struct usb_serial *serial);
static int ipaq_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
static int ipaq_write_bulk(struct usb_serial_port *port,
const unsigned char *buf, int count);
static void ipaq_write_gather(struct usb_serial_port *port);
static void ipaq_read_bulk_callback(struct urb *urb);
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 13:55:46 +00:00
static void ipaq_write_bulk_callback(struct urb *urb);
static int ipaq_write_room(struct tty_struct *tty);
static int ipaq_chars_in_buffer(struct tty_struct *tty);
static void ipaq_destroy_lists(struct usb_serial_port *port);
static struct usb_device_id ipaq_id_table [] = {
/* The first entry is a placeholder for the insmod-specified device */
{ USB_DEVICE(0x049F, 0x0003) },
{ USB_DEVICE(0x0104, 0x00BE) }, /* Socket USB Sync */
{ USB_DEVICE(0x03F0, 0x1016) }, /* HP USB Sync */
{ USB_DEVICE(0x03F0, 0x1116) }, /* HP USB Sync 1611 */
{ USB_DEVICE(0x03F0, 0x1216) }, /* HP USB Sync 1612 */
{ USB_DEVICE(0x03F0, 0x2016) }, /* HP USB Sync 1620 */
{ USB_DEVICE(0x03F0, 0x2116) }, /* HP USB Sync 1621 */
{ USB_DEVICE(0x03F0, 0x2216) }, /* HP USB Sync 1622 */
{ USB_DEVICE(0x03F0, 0x3016) }, /* HP USB Sync 1630 */
{ USB_DEVICE(0x03F0, 0x3116) }, /* HP USB Sync 1631 */
{ USB_DEVICE(0x03F0, 0x3216) }, /* HP USB Sync 1632 */
{ USB_DEVICE(0x03F0, 0x4016) }, /* HP USB Sync 1640 */
{ USB_DEVICE(0x03F0, 0x4116) }, /* HP USB Sync 1641 */
{ USB_DEVICE(0x03F0, 0x4216) }, /* HP USB Sync 1642 */
{ USB_DEVICE(0x03F0, 0x5016) }, /* HP USB Sync 1650 */
{ USB_DEVICE(0x03F0, 0x5116) }, /* HP USB Sync 1651 */
{ USB_DEVICE(0x03F0, 0x5216) }, /* HP USB Sync 1652 */
{ USB_DEVICE(0x0409, 0x00D5) }, /* NEC USB Sync */
{ USB_DEVICE(0x0409, 0x00D6) }, /* NEC USB Sync */
{ USB_DEVICE(0x0409, 0x00D7) }, /* NEC USB Sync */
{ USB_DEVICE(0x0409, 0x8024) }, /* NEC USB Sync */
{ USB_DEVICE(0x0409, 0x8025) }, /* NEC USB Sync */
{ USB_DEVICE(0x043E, 0x9C01) }, /* LGE USB Sync */
{ USB_DEVICE(0x045E, 0x00CE) }, /* Microsoft USB Sync */
{ USB_DEVICE(0x045E, 0x0400) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0401) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0402) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0403) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0404) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0405) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0406) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0407) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0408) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0409) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x040A) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x040B) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x040C) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x040D) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x040E) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x040F) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0410) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0411) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0412) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0413) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0414) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0415) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0416) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0417) }, /* Windows Powered Pocket PC 2002 */
{ USB_DEVICE(0x045E, 0x0432) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0433) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0434) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0435) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0436) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0437) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0438) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0439) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x043A) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x043B) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x043C) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x043D) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x043E) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x043F) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0440) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0441) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0442) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0443) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0444) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0445) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0446) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0447) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0448) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0449) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x044A) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x044B) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x044C) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x044D) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x044E) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x044F) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0450) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0451) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0452) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0453) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0454) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0455) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0456) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0457) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0458) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0459) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x045A) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x045B) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x045C) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x045D) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x045E) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x045F) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0460) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0461) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0462) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0463) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0464) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0465) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0466) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0467) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0468) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0469) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x046A) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x046B) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x046C) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x046D) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x046E) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x046F) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0470) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0471) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0472) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0473) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0474) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0475) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0476) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0477) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0478) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x0479) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x047A) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x047B) }, /* Windows Powered Pocket PC 2003 */
{ USB_DEVICE(0x045E, 0x04C8) }, /* Windows Powered Smartphone 2002 */
{ USB_DEVICE(0x045E, 0x04C9) }, /* Windows Powered Smartphone 2002 */
{ USB_DEVICE(0x045E, 0x04CA) }, /* Windows Powered Smartphone 2002 */
{ USB_DEVICE(0x045E, 0x04CB) }, /* Windows Powered Smartphone 2002 */
{ USB_DEVICE(0x045E, 0x04CC) }, /* Windows Powered Smartphone 2002 */
{ USB_DEVICE(0x045E, 0x04CD) }, /* Windows Powered Smartphone 2002 */
{ USB_DEVICE(0x045E, 0x04CE) }, /* Windows Powered Smartphone 2002 */
{ USB_DEVICE(0x045E, 0x04D7) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04D8) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04D9) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04DA) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04DB) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04DC) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04DD) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04DE) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04DF) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04E0) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04E1) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04E2) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04E3) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04E4) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04E5) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04E6) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04E7) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04E8) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04E9) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x045E, 0x04EA) }, /* Windows Powered Smartphone 2003 */
{ USB_DEVICE(0x049F, 0x0003) }, /* Compaq iPAQ USB Sync */
{ USB_DEVICE(0x049F, 0x0032) }, /* Compaq iPAQ USB Sync */
{ USB_DEVICE(0x04A4, 0x0014) }, /* Hitachi USB Sync */
{ USB_DEVICE(0x04AD, 0x0301) }, /* USB Sync 0301 */
{ USB_DEVICE(0x04AD, 0x0302) }, /* USB Sync 0302 */
{ USB_DEVICE(0x04AD, 0x0303) }, /* USB Sync 0303 */
{ USB_DEVICE(0x04AD, 0x0306) }, /* GPS Pocket PC USB Sync */
{ USB_DEVICE(0x04B7, 0x0531) }, /* MyGuide 7000 XL USB Sync */
{ USB_DEVICE(0x04C5, 0x1058) }, /* FUJITSU USB Sync */
{ USB_DEVICE(0x04C5, 0x1079) }, /* FUJITSU USB Sync */
{ USB_DEVICE(0x04DA, 0x2500) }, /* Panasonic USB Sync */
{ USB_DEVICE(0x04DD, 0x9102) }, /* SHARP WS003SH USB Modem */
{ USB_DEVICE(0x04DD, 0x9121) }, /* SHARP WS004SH USB Modem */
{ USB_DEVICE(0x04DD, 0x9123) }, /* SHARP WS007SH USB Modem */
{ USB_DEVICE(0x04DD, 0x9151) }, /* SHARP S01SH USB Modem */
{ USB_DEVICE(0x04DD, 0x91AC) }, /* SHARP WS011SH USB Modem */
{ USB_DEVICE(0x04E8, 0x5F00) }, /* Samsung NEXiO USB Sync */
{ USB_DEVICE(0x04E8, 0x5F01) }, /* Samsung NEXiO USB Sync */
{ USB_DEVICE(0x04E8, 0x5F02) }, /* Samsung NEXiO USB Sync */
{ USB_DEVICE(0x04E8, 0x5F03) }, /* Samsung NEXiO USB Sync */
{ USB_DEVICE(0x04E8, 0x5F04) }, /* Samsung NEXiO USB Sync */
{ USB_DEVICE(0x04E8, 0x6611) }, /* Samsung MITs USB Sync */
{ USB_DEVICE(0x04E8, 0x6613) }, /* Samsung MITs USB Sync */
{ USB_DEVICE(0x04E8, 0x6615) }, /* Samsung MITs USB Sync */
{ USB_DEVICE(0x04E8, 0x6617) }, /* Samsung MITs USB Sync */
{ USB_DEVICE(0x04E8, 0x6619) }, /* Samsung MITs USB Sync */
{ USB_DEVICE(0x04E8, 0x661B) }, /* Samsung MITs USB Sync */
{ USB_DEVICE(0x04E8, 0x662E) }, /* Samsung MITs USB Sync */
{ USB_DEVICE(0x04E8, 0x6630) }, /* Samsung MITs USB Sync */
{ USB_DEVICE(0x04E8, 0x6632) }, /* Samsung MITs USB Sync */
{ USB_DEVICE(0x04f1, 0x3011) }, /* JVC USB Sync */
{ USB_DEVICE(0x04F1, 0x3012) }, /* JVC USB Sync */
{ USB_DEVICE(0x0502, 0x1631) }, /* c10 Series */
{ USB_DEVICE(0x0502, 0x1632) }, /* c20 Series */
{ USB_DEVICE(0x0502, 0x16E1) }, /* Acer n10 Handheld USB Sync */
{ USB_DEVICE(0x0502, 0x16E2) }, /* Acer n20 Handheld USB Sync */
{ USB_DEVICE(0x0502, 0x16E3) }, /* Acer n30 Handheld USB Sync */
{ USB_DEVICE(0x0536, 0x01A0) }, /* HHP PDT */
{ USB_DEVICE(0x0543, 0x0ED9) }, /* ViewSonic Color Pocket PC V35 */
{ USB_DEVICE(0x0543, 0x1527) }, /* ViewSonic Color Pocket PC V36 */
{ USB_DEVICE(0x0543, 0x1529) }, /* ViewSonic Color Pocket PC V37 */
{ USB_DEVICE(0x0543, 0x152B) }, /* ViewSonic Color Pocket PC V38 */
{ USB_DEVICE(0x0543, 0x152E) }, /* ViewSonic Pocket PC */
{ USB_DEVICE(0x0543, 0x1921) }, /* ViewSonic Communicator Pocket PC */
{ USB_DEVICE(0x0543, 0x1922) }, /* ViewSonic Smartphone */
{ USB_DEVICE(0x0543, 0x1923) }, /* ViewSonic Pocket PC V30 */
{ USB_DEVICE(0x05E0, 0x2000) }, /* Symbol USB Sync */
{ USB_DEVICE(0x05E0, 0x2001) }, /* Symbol USB Sync 0x2001 */
{ USB_DEVICE(0x05E0, 0x2002) }, /* Symbol USB Sync 0x2002 */
{ USB_DEVICE(0x05E0, 0x2003) }, /* Symbol USB Sync 0x2003 */
{ USB_DEVICE(0x05E0, 0x2004) }, /* Symbol USB Sync 0x2004 */
{ USB_DEVICE(0x05E0, 0x2005) }, /* Symbol USB Sync 0x2005 */
{ USB_DEVICE(0x05E0, 0x2006) }, /* Symbol USB Sync 0x2006 */
{ USB_DEVICE(0x05E0, 0x2007) }, /* Symbol USB Sync 0x2007 */
{ USB_DEVICE(0x05E0, 0x2008) }, /* Symbol USB Sync 0x2008 */
{ USB_DEVICE(0x05E0, 0x2009) }, /* Symbol USB Sync 0x2009 */
{ USB_DEVICE(0x05E0, 0x200A) }, /* Symbol USB Sync 0x200A */
{ USB_DEVICE(0x067E, 0x1001) }, /* Intermec Mobile Computer */
{ USB_DEVICE(0x07CF, 0x2001) }, /* CASIO USB Sync 2001 */
{ USB_DEVICE(0x07CF, 0x2002) }, /* CASIO USB Sync 2002 */
{ USB_DEVICE(0x07CF, 0x2003) }, /* CASIO USB Sync 2003 */
{ USB_DEVICE(0x0930, 0x0700) }, /* TOSHIBA USB Sync 0700 */
{ USB_DEVICE(0x0930, 0x0705) }, /* TOSHIBA Pocket PC e310 */
{ USB_DEVICE(0x0930, 0x0706) }, /* TOSHIBA Pocket PC e740 */
{ USB_DEVICE(0x0930, 0x0707) }, /* TOSHIBA Pocket PC e330 Series */
{ USB_DEVICE(0x0930, 0x0708) }, /* TOSHIBA Pocket PC e350 Series */
{ USB_DEVICE(0x0930, 0x0709) }, /* TOSHIBA Pocket PC e750 Series */
{ USB_DEVICE(0x0930, 0x070A) }, /* TOSHIBA Pocket PC e400 Series */
{ USB_DEVICE(0x0930, 0x070B) }, /* TOSHIBA Pocket PC e800 Series */
{ USB_DEVICE(0x094B, 0x0001) }, /* Linkup Systems USB Sync */
{ USB_DEVICE(0x0960, 0x0065) }, /* BCOM USB Sync 0065 */
{ USB_DEVICE(0x0960, 0x0066) }, /* BCOM USB Sync 0066 */
{ USB_DEVICE(0x0960, 0x0067) }, /* BCOM USB Sync 0067 */
{ USB_DEVICE(0x0961, 0x0010) }, /* Portatec USB Sync */
{ USB_DEVICE(0x099E, 0x0052) }, /* Trimble GeoExplorer */
{ USB_DEVICE(0x099E, 0x4000) }, /* TDS Data Collector */
{ USB_DEVICE(0x0B05, 0x4200) }, /* ASUS USB Sync */
{ USB_DEVICE(0x0B05, 0x4201) }, /* ASUS USB Sync */
{ USB_DEVICE(0x0B05, 0x4202) }, /* ASUS USB Sync */
{ USB_DEVICE(0x0B05, 0x420F) }, /* ASUS USB Sync */
{ USB_DEVICE(0x0B05, 0x9200) }, /* ASUS USB Sync */
{ USB_DEVICE(0x0B05, 0x9202) }, /* ASUS USB Sync */
{ USB_DEVICE(0x0BB4, 0x00CE) }, /* HTC USB Sync */
{ USB_DEVICE(0x0BB4, 0x00CF) }, /* HTC USB Modem */
{ USB_DEVICE(0x0BB4, 0x0A01) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A02) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A03) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A04) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A05) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A06) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A07) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A08) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A09) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A0A) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A0B) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A0C) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A0D) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A0E) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A0F) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A10) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A11) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A12) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A13) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A14) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A15) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A16) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A17) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A18) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A19) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A1A) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A1B) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A1C) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A1D) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A1E) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A1F) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A20) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A21) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A22) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A23) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A24) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A25) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A26) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A27) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A28) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A29) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A2A) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A2B) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A2C) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A2D) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A2E) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A2F) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A30) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A31) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A32) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A33) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A34) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A35) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A36) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A37) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A38) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A39) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A3A) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A3B) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A3C) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A3D) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A3E) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A3F) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A40) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A41) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A42) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A43) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A44) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A45) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A46) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A47) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A48) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A49) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A4A) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A4B) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A4C) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A4D) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A4E) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A4F) }, /* PocketPC USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A50) }, /* HTC SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A51) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A52) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A53) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A54) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A55) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A56) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A57) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A58) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A59) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A5A) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A5B) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A5C) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A5D) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A5E) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A5F) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A60) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A61) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A62) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A63) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A64) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A65) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A66) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A67) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A68) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A69) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A6A) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A6B) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A6C) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A6D) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A6E) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A6F) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A70) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A71) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A72) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A73) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A74) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A75) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A76) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A77) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A78) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A79) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A7A) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A7B) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A7C) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A7D) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A7E) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A7F) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A80) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A81) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A82) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A83) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A84) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A85) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A86) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A87) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A88) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A89) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A8A) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A8B) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A8C) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A8D) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A8E) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A8F) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A90) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A91) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A92) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A93) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A94) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A95) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A96) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A97) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A98) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A99) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A9A) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A9B) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A9C) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A9D) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A9E) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0A9F) }, /* SmartPhone USB Sync */
{ USB_DEVICE(0x0BB4, 0x0BCE) }, /* "High Tech Computer Corp" */
{ USB_DEVICE(0x0BF8, 0x1001) }, /* Fujitsu Siemens Computers USB Sync */
{ USB_DEVICE(0x0C44, 0x03A2) }, /* Motorola iDEN Smartphone */
{ USB_DEVICE(0x0C8E, 0x6000) }, /* Cesscom Luxian Series */
{ USB_DEVICE(0x0CAD, 0x9001) }, /* Motorola PowerPad Pocket PC Device */
{ USB_DEVICE(0x0F4E, 0x0200) }, /* Freedom Scientific USB Sync */
{ USB_DEVICE(0x0F98, 0x0201) }, /* Cyberbank USB Sync */
{ USB_DEVICE(0x0FB8, 0x3001) }, /* Wistron USB Sync */
{ USB_DEVICE(0x0FB8, 0x3002) }, /* Wistron USB Sync */
{ USB_DEVICE(0x0FB8, 0x3003) }, /* Wistron USB Sync */
{ USB_DEVICE(0x0FB8, 0x4001) }, /* Wistron USB Sync */
{ USB_DEVICE(0x1066, 0x00CE) }, /* E-TEN USB Sync */
{ USB_DEVICE(0x1066, 0x0300) }, /* E-TEN P3XX Pocket PC */
{ USB_DEVICE(0x1066, 0x0500) }, /* E-TEN P5XX Pocket PC */
{ USB_DEVICE(0x1066, 0x0600) }, /* E-TEN P6XX Pocket PC */
{ USB_DEVICE(0x1066, 0x0700) }, /* E-TEN P7XX Pocket PC */
{ USB_DEVICE(0x1114, 0x0001) }, /* Psion Teklogix Sync 753x */
{ USB_DEVICE(0x1114, 0x0004) }, /* Psion Teklogix Sync netBookPro */
{ USB_DEVICE(0x1114, 0x0006) }, /* Psion Teklogix Sync 7525 */
{ USB_DEVICE(0x1182, 0x1388) }, /* VES USB Sync */
{ USB_DEVICE(0x11D9, 0x1002) }, /* Rugged Pocket PC 2003 */
{ USB_DEVICE(0x11D9, 0x1003) }, /* Rugged Pocket PC 2003 */
{ USB_DEVICE(0x1231, 0xCE01) }, /* USB Sync 03 */
{ USB_DEVICE(0x1231, 0xCE02) }, /* USB Sync 03 */
{ USB_DEVICE(0x1690, 0x0601) }, /* Askey USB Sync */
{ USB_DEVICE(0x22B8, 0x4204) }, /* Motorola MPx200 Smartphone */
{ USB_DEVICE(0x22B8, 0x4214) }, /* Motorola MPc GSM */
{ USB_DEVICE(0x22B8, 0x4224) }, /* Motorola MPx220 Smartphone */
{ USB_DEVICE(0x22B8, 0x4234) }, /* Motorola MPc CDMA */
{ USB_DEVICE(0x22B8, 0x4244) }, /* Motorola MPx100 Smartphone */
{ USB_DEVICE(0x3340, 0x011C) }, /* Mio DigiWalker PPC StrongARM */
{ USB_DEVICE(0x3340, 0x0326) }, /* Mio DigiWalker 338 */
{ USB_DEVICE(0x3340, 0x0426) }, /* Mio DigiWalker 338 */
{ USB_DEVICE(0x3340, 0x043A) }, /* Mio DigiWalker USB Sync */
{ USB_DEVICE(0x3340, 0x051C) }, /* MiTAC USB Sync 528 */
{ USB_DEVICE(0x3340, 0x053A) }, /* Mio DigiWalker SmartPhone USB Sync */
{ USB_DEVICE(0x3340, 0x071C) }, /* MiTAC USB Sync */
{ USB_DEVICE(0x3340, 0x0B1C) }, /* Generic PPC StrongARM */
{ USB_DEVICE(0x3340, 0x0E3A) }, /* Generic PPC USB Sync */
{ USB_DEVICE(0x3340, 0x0F1C) }, /* Itautec USB Sync */
{ USB_DEVICE(0x3340, 0x0F3A) }, /* Generic SmartPhone USB Sync */
{ USB_DEVICE(0x3340, 0x1326) }, /* Itautec USB Sync */
{ USB_DEVICE(0x3340, 0x191C) }, /* YAKUMO USB Sync */
{ USB_DEVICE(0x3340, 0x2326) }, /* Vobis USB Sync */
{ USB_DEVICE(0x3340, 0x3326) }, /* MEDION Winodws Moble USB Sync */
{ USB_DEVICE(0x3708, 0x20CE) }, /* Legend USB Sync */
{ USB_DEVICE(0x3708, 0x21CE) }, /* Lenovo USB Sync */
{ USB_DEVICE(0x4113, 0x0210) }, /* Mobile Media Technology USB Sync */
{ USB_DEVICE(0x4113, 0x0211) }, /* Mobile Media Technology USB Sync */
{ USB_DEVICE(0x4113, 0x0400) }, /* Mobile Media Technology USB Sync */
{ USB_DEVICE(0x4113, 0x0410) }, /* Mobile Media Technology USB Sync */
{ USB_DEVICE(0x413C, 0x4001) }, /* Dell Axim USB Sync */
{ USB_DEVICE(0x413C, 0x4002) }, /* Dell Axim USB Sync */
{ USB_DEVICE(0x413C, 0x4003) }, /* Dell Axim USB Sync */
{ USB_DEVICE(0x413C, 0x4004) }, /* Dell Axim USB Sync */
{ USB_DEVICE(0x413C, 0x4005) }, /* Dell Axim USB Sync */
{ USB_DEVICE(0x413C, 0x4006) }, /* Dell Axim USB Sync */
{ USB_DEVICE(0x413C, 0x4007) }, /* Dell Axim USB Sync */
{ USB_DEVICE(0x413C, 0x4008) }, /* Dell Axim USB Sync */
{ USB_DEVICE(0x413C, 0x4009) }, /* Dell Axim USB Sync */
{ USB_DEVICE(0x4505, 0x0010) }, /* Smartphone */
{ USB_DEVICE(0x5E04, 0xCE00) }, /* SAGEM Wireless Assistant */
{ USB_DEVICE(0x0BB4, 0x00CF) }, /* HTC smartphone modems */
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, ipaq_id_table);
static struct usb_driver ipaq_driver = {
.name = "ipaq",
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = ipaq_id_table,
.no_dynamic_id = 1,
};
/* All of the device info needed for the Compaq iPAQ */
static struct usb_serial_driver ipaq_device = {
.driver = {
.owner = THIS_MODULE,
.name = "ipaq",
},
.description = "PocketPC PDA",
.usb_driver = &ipaq_driver,
.id_table = ipaq_id_table,
/*
* some devices have an extra endpoint, which
* must be ignored as it would make the core
* create a second port which oopses when used
*/
.num_ports = 1,
.open = ipaq_open,
.close = ipaq_close,
.attach = ipaq_startup,
.shutdown = ipaq_shutdown,
.write = ipaq_write,
.write_room = ipaq_write_room,
.chars_in_buffer = ipaq_chars_in_buffer,
.read_bulk_callback = ipaq_read_bulk_callback,
.write_bulk_callback = ipaq_write_bulk_callback,
};
static spinlock_t write_list_lock;
static int bytes_in;
static int bytes_out;
static int ipaq_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp)
{
struct usb_serial *serial = port->serial;
struct ipaq_private *priv;
struct ipaq_packet *pkt;
int i, result = 0;
int retries = connect_retries;
dbg("%s - port %d", __func__, port->number);
bytes_in = 0;
bytes_out = 0;
[PATCH] getting rid of all casts of k[cmz]alloc() calls Run this: #!/bin/sh for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do echo "De-casting $f..." perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f done And then go through and reinstate those cases where code is casting pointers to non-pointers. And then drop a few hunks which conflicted with outstanding work. Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Greg KH <greg@kroah.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Karsten Keil <kkeil@suse.de> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Ian Kent <raven@themaw.net> Cc: Steven French <sfrench@us.ibm.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 08:35:56 +00:00
priv = kmalloc(sizeof(struct ipaq_private), GFP_KERNEL);
if (priv == NULL) {
err("%s - Out of memory", __func__);
return -ENOMEM;
}
usb_set_serial_port_data(port, priv);
priv->active = 0;
priv->queue_len = 0;
priv->free_len = 0;
INIT_LIST_HEAD(&priv->queue);
INIT_LIST_HEAD(&priv->freelist);
for (i = 0; i < URBDATA_QUEUE_MAX / PACKET_SIZE; i++) {
pkt = kmalloc(sizeof(struct ipaq_packet), GFP_KERNEL);
if (pkt == NULL)
goto enomem;
pkt->data = kmalloc(PACKET_SIZE, GFP_KERNEL);
if (pkt->data == NULL) {
kfree(pkt);
goto enomem;
}
pkt->len = 0;
pkt->written = 0;
INIT_LIST_HEAD(&pkt->list);
list_add(&pkt->list, &priv->freelist);
priv->free_len += PACKET_SIZE;
}
/*
* Force low latency on. This will immediately push data to the line
* discipline instead of queueing.
*/
if (tty) {
tty->low_latency = 1;
/* FIXME: These two are bogus */
tty->raw = 1;
tty->real_raw = 1;
}
/*
* Lose the small buffers usbserial provides. Make larger ones.
*/
kfree(port->bulk_in_buffer);
port->bulk_in_buffer = kmalloc(URBDATA_SIZE, GFP_KERNEL);
if (port->bulk_in_buffer == NULL) {
port->bulk_out_buffer = NULL; /* prevent double free */
goto enomem;
}
kfree(port->bulk_out_buffer);
port->bulk_out_buffer = kmalloc(URBDATA_SIZE, GFP_KERNEL);
if (port->bulk_out_buffer == NULL) {
kfree(port->bulk_in_buffer);
port->bulk_in_buffer = NULL;
goto enomem;
}
port->read_urb->transfer_buffer = port->bulk_in_buffer;
port->write_urb->transfer_buffer = port->bulk_out_buffer;
port->read_urb->transfer_buffer_length = URBDATA_SIZE;
port->bulk_out_size = port->write_urb->transfer_buffer_length
= URBDATA_SIZE;
msleep(1000*initial_wait);
/*
* Send out control message observed in win98 sniffs. Not sure what
* it does, but from empirical observations, it seems that the device
* will start the chat sequence once one of these messages gets
* through. Since this has a reasonably high failure rate, we retry
* several times.
*/
while (retries--) {
result = usb_control_msg(serial->dev,
usb_sndctrlpipe(serial->dev, 0), 0x22, 0x21,
0x1, 0, NULL, 0, 100);
if (!result)
break;
msleep(1000);
}
if (!retries && result) {
err("%s - failed doing control urb, error %d", __func__,
result);
goto error;
}
/* 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,
ipaq_read_bulk_callback, port);
result = usb_submit_urb(port->read_urb, GFP_KERNEL);
if (result) {
err("%s - failed submitting read urb, error %d",
__func__, result);
goto error;
}
return 0;
enomem:
result = -ENOMEM;
err("%s - Out of memory", __func__);
error:
ipaq_destroy_lists(port);
kfree(priv);
return result;
}
static void ipaq_close(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp)
{
struct ipaq_private *priv = usb_get_serial_port_data(port);
dbg("%s - port %d", __func__, port->number);
/*
* shut down bulk read and write
*/
usb_kill_urb(port->write_urb);
usb_kill_urb(port->read_urb);
ipaq_destroy_lists(port);
kfree(priv);
usb_set_serial_port_data(port, NULL);
/* Uncomment the following line if you want to see some statistics
* in your syslog */
/* info ("Bytes In = %d Bytes Out = %d", bytes_in, bytes_out); */
}
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 13:55:46 +00:00
static void ipaq_read_bulk_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
struct tty_struct *tty;
unsigned char *data = urb->transfer_buffer;
[PATCH] TTY layer buffering revamp The API and code have been through various bits of initial review by serial driver people but they definitely need to live somewhere for a while so the unconverted drivers can get knocked into shape, existing drivers that have been updated can be better tuned and bugs whacked out. This replaces the tty flip buffers with kmalloc objects in rings. In the normal situation for an IRQ driven serial port at typical speeds the behaviour is pretty much the same, two buffers end up allocated and the kernel cycles between them as before. When there are delays or at high speed we now behave far better as the buffer pool can grow a bit rather than lose characters. This also means that we can operate at higher speeds reliably. For drivers that receive characters in blocks (DMA based, USB and especially virtualisation) the layer allows a lot of driver specific code that works around the tty layer with private secondary queues to be removed. The IBM folks need this sort of layer, the smart serial port people do, the virtualisers do (because a virtualised tty typically operates at infinite speed rather than emulating 9600 baud). Finally many drivers had invalid and unsafe attempts to avoid buffer overflows by directly invoking tty methods extracted out of the innards of work queue structs. These are no longer needed and all go away. That fixes various random hangs with serial ports on overflow. The other change in here is to optimise the receive_room path that is used by some callers. It turns out that only one ldisc uses receive room except asa constant and it updates it far far less than the value is read. We thus make it a variable not a function call. I expect the code to contain bugs due to the size alone but I'll be watching and squashing them and feeding out new patches as it goes. Because the buffers now dynamically expand you should only run out of buffering when the kernel runs out of memory for real. That means a lot of the horrible hacks high performance drivers used to do just aren't needed any more. Description: tty_insert_flip_char is an old API and continues to work as before, as does tty_flip_buffer_push() [this is why many drivers dont need modification]. It does now also return the number of chars inserted There are also tty_buffer_request_room(tty, len) which asks for a buffer block of the length requested and returns the space found. This improves efficiency with hardware that knows how much to transfer. and tty_insert_flip_string_flags(tty, str, flags, len) to insert a string of characters and flags For a smart interface the usual code is len = tty_request_buffer_room(tty, amount_hardware_says); tty_insert_flip_string(tty, buffer_from_card, len); More description! At the moment tty buffers are attached directly to the tty. This is causing a lot of the problems related to tty layer locking, also problems at high speed and also with bursty data (such as occurs in virtualised environments) I'm working on ripping out the flip buffers and replacing them with a pool of dynamically allocated buffers. This allows both for old style "byte I/O" devices and also helps virtualisation and smart devices where large blocks of data suddenely materialise and need storing. So far so good. Lots of drivers reference tty->flip.*. Several of them also call directly and unsafely into function pointers it provides. This will all break. Most drivers can use tty_insert_flip_char which can be kept as an API but others need more. At the moment I've added the following interfaces, if people think more will be needed now is a good time to say int tty_buffer_request_room(tty, size) Try and ensure at least size bytes are available, returns actual room (may be zero). At the moment it just uses the flipbuf space but that will change. Repeated calls without characters being added are not cumulative. (ie if you call it with 1, 1, 1, and then 4 you'll have four characters of space. The other functions will also try and grow buffers in future but this will be a more efficient way when you know block sizes. int tty_insert_flip_char(tty, ch, flag) As before insert a character if there is room. Now returns 1 for success, 0 for failure. int tty_insert_flip_string(tty, str, len) Insert a block of non error characters. Returns the number inserted. int tty_prepare_flip_string(tty, strptr, len) Adjust the buffer to allow len characters to be added. Returns a buffer pointer in strptr and the length available. This allows for hardware that needs to use functions like insl or mencpy_fromio. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: John Hawkes <hawkes@sgi.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 04:54:13 +00:00
int result;
int status = urb->status;
dbg("%s - port %d", __func__, port->number);
if (status) {
dbg("%s - nonzero read bulk status received: %d",
__func__, status);
return;
}
usb_serial_debug_data(debug, &port->dev, __func__,
urb->actual_length, data);
tty = port->port.tty;
if (tty && urb->actual_length) {
[PATCH] TTY layer buffering revamp The API and code have been through various bits of initial review by serial driver people but they definitely need to live somewhere for a while so the unconverted drivers can get knocked into shape, existing drivers that have been updated can be better tuned and bugs whacked out. This replaces the tty flip buffers with kmalloc objects in rings. In the normal situation for an IRQ driven serial port at typical speeds the behaviour is pretty much the same, two buffers end up allocated and the kernel cycles between them as before. When there are delays or at high speed we now behave far better as the buffer pool can grow a bit rather than lose characters. This also means that we can operate at higher speeds reliably. For drivers that receive characters in blocks (DMA based, USB and especially virtualisation) the layer allows a lot of driver specific code that works around the tty layer with private secondary queues to be removed. The IBM folks need this sort of layer, the smart serial port people do, the virtualisers do (because a virtualised tty typically operates at infinite speed rather than emulating 9600 baud). Finally many drivers had invalid and unsafe attempts to avoid buffer overflows by directly invoking tty methods extracted out of the innards of work queue structs. These are no longer needed and all go away. That fixes various random hangs with serial ports on overflow. The other change in here is to optimise the receive_room path that is used by some callers. It turns out that only one ldisc uses receive room except asa constant and it updates it far far less than the value is read. We thus make it a variable not a function call. I expect the code to contain bugs due to the size alone but I'll be watching and squashing them and feeding out new patches as it goes. Because the buffers now dynamically expand you should only run out of buffering when the kernel runs out of memory for real. That means a lot of the horrible hacks high performance drivers used to do just aren't needed any more. Description: tty_insert_flip_char is an old API and continues to work as before, as does tty_flip_buffer_push() [this is why many drivers dont need modification]. It does now also return the number of chars inserted There are also tty_buffer_request_room(tty, len) which asks for a buffer block of the length requested and returns the space found. This improves efficiency with hardware that knows how much to transfer. and tty_insert_flip_string_flags(tty, str, flags, len) to insert a string of characters and flags For a smart interface the usual code is len = tty_request_buffer_room(tty, amount_hardware_says); tty_insert_flip_string(tty, buffer_from_card, len); More description! At the moment tty buffers are attached directly to the tty. This is causing a lot of the problems related to tty layer locking, also problems at high speed and also with bursty data (such as occurs in virtualised environments) I'm working on ripping out the flip buffers and replacing them with a pool of dynamically allocated buffers. This allows both for old style "byte I/O" devices and also helps virtualisation and smart devices where large blocks of data suddenely materialise and need storing. So far so good. Lots of drivers reference tty->flip.*. Several of them also call directly and unsafely into function pointers it provides. This will all break. Most drivers can use tty_insert_flip_char which can be kept as an API but others need more. At the moment I've added the following interfaces, if people think more will be needed now is a good time to say int tty_buffer_request_room(tty, size) Try and ensure at least size bytes are available, returns actual room (may be zero). At the moment it just uses the flipbuf space but that will change. Repeated calls without characters being added are not cumulative. (ie if you call it with 1, 1, 1, and then 4 you'll have four characters of space. The other functions will also try and grow buffers in future but this will be a more efficient way when you know block sizes. int tty_insert_flip_char(tty, ch, flag) As before insert a character if there is room. Now returns 1 for success, 0 for failure. int tty_insert_flip_string(tty, str, len) Insert a block of non error characters. Returns the number inserted. int tty_prepare_flip_string(tty, strptr, len) Adjust the buffer to allow len characters to be added. Returns a buffer pointer in strptr and the length available. This allows for hardware that needs to use functions like insl or mencpy_fromio. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: John Hawkes <hawkes@sgi.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 04:54:13 +00:00
tty_buffer_request_room(tty, urb->actual_length);
tty_insert_flip_string(tty, data, urb->actual_length);
tty_flip_buffer_push(tty);
bytes_in += urb->actual_length;
}
/* Continue trying to always read */
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,
ipaq_read_bulk_callback, port);
result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
if (result)
err("%s - failed resubmitting read urb, error %d",
__func__, result);
return;
}
static int ipaq_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count)
{
const unsigned char *current_position = buf;
int bytes_sent = 0;
int transfer_size;
dbg("%s - port %d", __func__, port->number);
while (count > 0) {
transfer_size = min(count, PACKET_SIZE);
if (ipaq_write_bulk(port, current_position, transfer_size))
break;
current_position += transfer_size;
bytes_sent += transfer_size;
count -= transfer_size;
bytes_out += transfer_size;
}
return bytes_sent;
}
static int ipaq_write_bulk(struct usb_serial_port *port,
const unsigned char *buf, int count)
{
struct ipaq_private *priv = usb_get_serial_port_data(port);
struct ipaq_packet *pkt = NULL;
int result = 0;
unsigned long flags;
if (priv->free_len <= 0) {
dbg("%s - we're stuffed", __func__);
return -EAGAIN;
}
spin_lock_irqsave(&write_list_lock, flags);
if (!list_empty(&priv->freelist)) {
pkt = list_entry(priv->freelist.next, struct ipaq_packet, list);
list_del(&pkt->list);
priv->free_len -= PACKET_SIZE;
}
spin_unlock_irqrestore(&write_list_lock, flags);
if (pkt == NULL) {
dbg("%s - we're stuffed", __func__);
return -EAGAIN;
}
memcpy(pkt->data, buf, count);
usb_serial_debug_data(debug, &port->dev, __func__, count, pkt->data);
pkt->len = count;
pkt->written = 0;
spin_lock_irqsave(&write_list_lock, flags);
list_add_tail(&pkt->list, &priv->queue);
priv->queue_len += count;
if (priv->active == 0) {
priv->active = 1;
ipaq_write_gather(port);
spin_unlock_irqrestore(&write_list_lock, flags);
result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
if (result)
err("%s - failed submitting write urb, error %d",
__func__, result);
} else {
spin_unlock_irqrestore(&write_list_lock, flags);
}
return result;
}
static void ipaq_write_gather(struct usb_serial_port *port)
{
struct ipaq_private *priv = usb_get_serial_port_data(port);
struct usb_serial *serial = port->serial;
int count, room;
struct ipaq_packet *pkt, *tmp;
struct urb *urb = port->write_urb;
room = URBDATA_SIZE;
list_for_each_entry_safe(pkt, tmp, &priv->queue, list) {
count = min(room, (int)(pkt->len - pkt->written));
memcpy(urb->transfer_buffer + (URBDATA_SIZE - room),
pkt->data + pkt->written, count);
room -= count;
pkt->written += count;
priv->queue_len -= count;
if (pkt->written == pkt->len) {
list_move(&pkt->list, &priv->freelist);
priv->free_len += PACKET_SIZE;
}
if (room == 0)
break;
}
count = URBDATA_SIZE - room;
usb_fill_bulk_urb(port->write_urb, serial->dev,
usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress),
port->write_urb->transfer_buffer, count,
ipaq_write_bulk_callback, port);
return;
}
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 13:55:46 +00:00
static void ipaq_write_bulk_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
struct ipaq_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
int result;
int status = urb->status;
dbg("%s - port %d", __func__, port->number);
if (status) {
dbg("%s - nonzero write bulk status received: %d",
__func__, status);
return;
}
spin_lock_irqsave(&write_list_lock, flags);
if (!list_empty(&priv->queue)) {
ipaq_write_gather(port);
spin_unlock_irqrestore(&write_list_lock, flags);
result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
if (result)
err("%s - failed submitting write urb, error %d",
__func__, result);
} else {
priv->active = 0;
spin_unlock_irqrestore(&write_list_lock, flags);
}
usb_serial_port_softint(port);
}
static int ipaq_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct ipaq_private *priv = usb_get_serial_port_data(port);
dbg("%s - freelen %d", __func__, priv->free_len);
return priv->free_len;
}
static int ipaq_chars_in_buffer(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct ipaq_private *priv = usb_get_serial_port_data(port);
dbg("%s - queuelen %d", __func__, priv->queue_len);
return priv->queue_len;
}
static void ipaq_destroy_lists(struct usb_serial_port *port)
{
struct ipaq_private *priv = usb_get_serial_port_data(port);
struct ipaq_packet *pkt, *tmp;
list_for_each_entry_safe(pkt, tmp, &priv->queue, list) {
kfree(pkt->data);
kfree(pkt);
}
list_for_each_entry_safe(pkt, tmp, &priv->freelist, list) {
kfree(pkt->data);
kfree(pkt);
}
}
static int ipaq_startup(struct usb_serial *serial)
{
dbg("%s", __func__);
if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
err("active config #%d != 1 ??",
serial->dev->actconfig->desc.bConfigurationValue);
return -ENODEV;
}
return usb_reset_configuration(serial->dev);
}
static void ipaq_shutdown(struct usb_serial *serial)
{
dbg("%s", __func__);
}
static int __init ipaq_init(void)
{
int retval;
spin_lock_init(&write_list_lock);
retval = usb_serial_register(&ipaq_device);
if (retval)
goto failed_usb_serial_register;
info(DRIVER_DESC " " DRIVER_VERSION);
if (vendor) {
ipaq_id_table[0].idVendor = vendor;
ipaq_id_table[0].idProduct = product;
}
retval = usb_register(&ipaq_driver);
if (retval)
goto failed_usb_register;
return 0;
failed_usb_register:
usb_serial_deregister(&ipaq_device);
failed_usb_serial_register:
return retval;
}
static void __exit ipaq_exit(void)
{
usb_deregister(&ipaq_driver);
usb_serial_deregister(&ipaq_device);
}
module_init(ipaq_init);
module_exit(ipaq_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(vendor, ushort, 0);
MODULE_PARM_DESC(vendor, "User specified USB idVendor");
module_param(product, ushort, 0);
MODULE_PARM_DESC(product, "User specified USB idProduct");
module_param(connect_retries, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(connect_retries,
"Maximum number of connect retries (one second each)");
module_param(initial_wait, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(initial_wait,
"Time to wait before attempting a connection (in seconds)");