1066 lines
32 KiB
C
1066 lines
32 KiB
C
/*
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* USB HandSpring Visor, Palm m50x, and Sony Clie driver
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* (supports all of the Palm OS USB devices)
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*
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* Copyright (C) 1999 - 2004
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* Greg Kroah-Hartman (greg@kroah.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License.
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*
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* See Documentation/usb/usb-serial.txt for more information on using this driver
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*
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/tty.h>
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#include <linux/tty_driver.h>
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#include <linux/tty_flip.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/spinlock.h>
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#include <asm/uaccess.h>
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#include <linux/usb.h>
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#include <linux/usb/serial.h>
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#include "visor.h"
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/*
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* Version Information
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*/
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#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
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#define DRIVER_DESC "USB HandSpring Visor / Palm OS driver"
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/* function prototypes for a handspring visor */
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static int visor_open (struct usb_serial_port *port, struct file *filp);
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static void visor_close (struct usb_serial_port *port, struct file *filp);
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static int visor_write (struct usb_serial_port *port, const unsigned char *buf, int count);
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static int visor_write_room (struct usb_serial_port *port);
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static int visor_chars_in_buffer (struct usb_serial_port *port);
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static void visor_throttle (struct usb_serial_port *port);
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static void visor_unthrottle (struct usb_serial_port *port);
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static int visor_probe (struct usb_serial *serial, const struct usb_device_id *id);
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static int visor_calc_num_ports(struct usb_serial *serial);
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static void visor_shutdown (struct usb_serial *serial);
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static int visor_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
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static void visor_set_termios (struct usb_serial_port *port, struct ktermios *old_termios);
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static void visor_write_bulk_callback (struct urb *urb);
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static void visor_read_bulk_callback (struct urb *urb);
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static void visor_read_int_callback (struct urb *urb);
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static int clie_3_5_startup (struct usb_serial *serial);
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static int treo_attach (struct usb_serial *serial);
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static int clie_5_attach (struct usb_serial *serial);
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static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_id *id);
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static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_id *id);
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/* Parameters that may be passed into the module. */
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static int debug;
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static __u16 vendor;
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static __u16 product;
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static struct usb_device_id id_table [] = {
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{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID),
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.driver_info = (kernel_ulong_t)&palm_os_3_probe },
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{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE31_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ }, /* optional parameter entry */
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{ } /* Terminating entry */
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};
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static struct usb_device_id clie_id_5_table [] = {
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID),
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.driver_info = (kernel_ulong_t)&palm_os_4_probe },
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{ }, /* optional parameter entry */
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{ } /* Terminating entry */
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};
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static struct usb_device_id clie_id_3_5_table [] = {
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
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{ } /* Terminating entry */
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};
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static struct usb_device_id id_table_combined [] = {
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{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) },
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{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) },
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{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) },
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{ USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID) },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID) },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID) },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID) },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID) },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID) },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID) },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID) },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID) },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650) },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID) },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE31_ID) },
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{ USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID) },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID) },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID) },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID) },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID) },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID) },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID) },
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{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID) },
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{ USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID) },
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{ USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID) },
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{ USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID) },
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{ USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID) },
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{ USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID) },
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{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID) },
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{ USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID) },
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{ }, /* optional parameter entry */
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE (usb, id_table_combined);
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static struct usb_driver visor_driver = {
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.name = "visor",
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.probe = usb_serial_probe,
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.disconnect = usb_serial_disconnect,
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.id_table = id_table_combined,
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.no_dynamic_id = 1,
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};
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/* All of the device info needed for the Handspring Visor, and Palm 4.0 devices */
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static struct usb_serial_driver handspring_device = {
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.driver = {
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.owner = THIS_MODULE,
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.name = "visor",
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},
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.description = "Handspring Visor / Palm OS",
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.id_table = id_table,
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.num_interrupt_in = NUM_DONT_CARE,
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.num_bulk_in = 2,
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.num_bulk_out = 2,
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.num_ports = 2,
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.open = visor_open,
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.close = visor_close,
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.throttle = visor_throttle,
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.unthrottle = visor_unthrottle,
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.attach = treo_attach,
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.probe = visor_probe,
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.calc_num_ports = visor_calc_num_ports,
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.shutdown = visor_shutdown,
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.ioctl = visor_ioctl,
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.set_termios = visor_set_termios,
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.write = visor_write,
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.write_room = visor_write_room,
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.chars_in_buffer = visor_chars_in_buffer,
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.write_bulk_callback = visor_write_bulk_callback,
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.read_bulk_callback = visor_read_bulk_callback,
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.read_int_callback = visor_read_int_callback,
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};
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/* All of the device info needed for the Clie UX50, TH55 Palm 5.0 devices */
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static struct usb_serial_driver clie_5_device = {
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.driver = {
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.owner = THIS_MODULE,
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.name = "clie_5",
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},
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.description = "Sony Clie 5.0",
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.id_table = clie_id_5_table,
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.num_interrupt_in = NUM_DONT_CARE,
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.num_bulk_in = 2,
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.num_bulk_out = 2,
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.num_ports = 2,
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.open = visor_open,
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.close = visor_close,
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.throttle = visor_throttle,
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.unthrottle = visor_unthrottle,
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.attach = clie_5_attach,
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.probe = visor_probe,
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.calc_num_ports = visor_calc_num_ports,
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.shutdown = visor_shutdown,
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.ioctl = visor_ioctl,
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.set_termios = visor_set_termios,
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.write = visor_write,
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.write_room = visor_write_room,
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.chars_in_buffer = visor_chars_in_buffer,
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.write_bulk_callback = visor_write_bulk_callback,
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.read_bulk_callback = visor_read_bulk_callback,
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.read_int_callback = visor_read_int_callback,
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};
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/* device info for the Sony Clie OS version 3.5 */
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static struct usb_serial_driver clie_3_5_device = {
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.driver = {
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.owner = THIS_MODULE,
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.name = "clie_3.5",
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},
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.description = "Sony Clie 3.5",
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.id_table = clie_id_3_5_table,
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.num_interrupt_in = 0,
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.num_bulk_in = 1,
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.num_bulk_out = 1,
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.num_ports = 1,
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.open = visor_open,
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.close = visor_close,
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.throttle = visor_throttle,
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.unthrottle = visor_unthrottle,
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.attach = clie_3_5_startup,
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.ioctl = visor_ioctl,
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.set_termios = visor_set_termios,
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.write = visor_write,
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.write_room = visor_write_room,
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.chars_in_buffer = visor_chars_in_buffer,
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.write_bulk_callback = visor_write_bulk_callback,
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.read_bulk_callback = visor_read_bulk_callback,
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};
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struct visor_private {
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spinlock_t lock;
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int bytes_in;
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int bytes_out;
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int outstanding_urbs;
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int throttled;
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};
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/* number of outstanding urbs to prevent userspace DoS from happening */
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#define URB_UPPER_LIMIT 42
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static int stats;
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/******************************************************************************
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* Handspring Visor specific driver functions
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******************************************************************************/
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static int visor_open (struct usb_serial_port *port, struct file *filp)
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{
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struct usb_serial *serial = port->serial;
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struct visor_private *priv = usb_get_serial_port_data(port);
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unsigned long flags;
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int result = 0;
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dbg("%s - port %d", __FUNCTION__, port->number);
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if (!port->read_urb) {
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/* this is needed for some brain dead Sony devices */
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dev_err(&port->dev, "Device lied about number of ports, please use a lower one.\n");
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return -ENODEV;
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}
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spin_lock_irqsave(&priv->lock, flags);
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priv->bytes_in = 0;
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priv->bytes_out = 0;
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priv->throttled = 0;
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spin_unlock_irqrestore(&priv->lock, flags);
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/*
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* Force low_latency on so that our tty_push actually forces the data
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* through, otherwise it is scheduled, and with high data rates (like
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* with OHCI) data can get lost.
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*/
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if (port->tty)
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port->tty->low_latency = 1;
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/* Start reading from the device */
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usb_fill_bulk_urb (port->read_urb, serial->dev,
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usb_rcvbulkpipe (serial->dev,
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port->bulk_in_endpointAddress),
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port->read_urb->transfer_buffer,
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port->read_urb->transfer_buffer_length,
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visor_read_bulk_callback, port);
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result = usb_submit_urb(port->read_urb, GFP_KERNEL);
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if (result) {
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dev_err(&port->dev, "%s - failed submitting read urb, error %d\n",
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__FUNCTION__, result);
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goto exit;
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}
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if (port->interrupt_in_urb) {
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dbg("%s - adding interrupt input for treo", __FUNCTION__);
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result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
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if (result)
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dev_err(&port->dev, "%s - failed submitting interrupt urb, error %d\n",
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__FUNCTION__, result);
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}
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exit:
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return result;
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}
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static void visor_close (struct usb_serial_port *port, struct file * filp)
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{
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struct visor_private *priv = usb_get_serial_port_data(port);
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unsigned char *transfer_buffer;
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dbg("%s - port %d", __FUNCTION__, port->number);
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/* shutdown our urbs */
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usb_kill_urb(port->read_urb);
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usb_kill_urb(port->interrupt_in_urb);
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/* Try to send shutdown message, if the device is gone, this will just fail. */
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transfer_buffer = kmalloc (0x12, GFP_KERNEL);
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if (transfer_buffer) {
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usb_control_msg (port->serial->dev,
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usb_rcvctrlpipe(port->serial->dev, 0),
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VISOR_CLOSE_NOTIFICATION, 0xc2,
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0x0000, 0x0000,
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transfer_buffer, 0x12, 300);
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kfree (transfer_buffer);
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}
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if (stats)
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dev_info(&port->dev, "Bytes In = %d Bytes Out = %d\n",
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priv->bytes_in, priv->bytes_out);
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}
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static int visor_write (struct usb_serial_port *port, const unsigned char *buf, int count)
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{
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struct visor_private *priv = usb_get_serial_port_data(port);
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struct usb_serial *serial = port->serial;
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struct urb *urb;
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unsigned char *buffer;
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unsigned long flags;
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int status;
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dbg("%s - port %d", __FUNCTION__, port->number);
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spin_lock_irqsave(&priv->lock, flags);
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if (priv->outstanding_urbs > URB_UPPER_LIMIT) {
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spin_unlock_irqrestore(&priv->lock, flags);
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dbg("%s - write limit hit\n", __FUNCTION__);
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return 0;
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}
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spin_unlock_irqrestore(&priv->lock, flags);
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buffer = kmalloc (count, GFP_ATOMIC);
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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)
|
|
{
|
|
struct visor_private *priv = usb_get_serial_port_data(port);
|
|
unsigned long flags;
|
|
|
|
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, unless we don't.
|
|
*/
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
if (priv->outstanding_urbs > URB_UPPER_LIMIT * 2 / 3) {
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
dbg("%s - write limit hit\n", __FUNCTION__);
|
|
return 0;
|
|
}
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
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 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);
|
|
|
|
usb_serial_port_softint(port);
|
|
}
|
|
|
|
|
|
static void visor_read_bulk_callback (struct urb *urb)
|
|
{
|
|
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 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) {
|
|
tty_buffer_request_room(tty, urb->actual_length);
|
|
tty_insert_flip_string(tty, data, urb->actual_length);
|
|
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 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->description,
|
|
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->description);
|
|
num_ports = 2;
|
|
}
|
|
|
|
dev_info(dev, "%s: Number of ports: %d\n", serial->type->description,
|
|
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 usb_serial_port **ports = serial->port;
|
|
struct visor_private *priv;
|
|
int i;
|
|
|
|
for (i = 0; i < serial->num_ports; ++i) {
|
|
priv = kzalloc (sizeof(*priv), GFP_KERNEL);
|
|
if (!priv) {
|
|
while (i-- != 0) {
|
|
priv = usb_get_serial_port_data(ports[i]);
|
|
usb_set_serial_port_data(ports[i], NULL);
|
|
kfree(priv);
|
|
}
|
|
return -ENOMEM;
|
|
}
|
|
spin_lock_init(&priv->lock);
|
|
usb_set_serial_port_data(ports[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)
|
|
{
|
|
struct visor_private *priv;
|
|
int i;
|
|
|
|
dbg("%s", __FUNCTION__);
|
|
|
|
for (i = 0; i < serial->num_ports; i++) {
|
|
priv = usb_get_serial_port_data(serial->port[i]);
|
|
if (priv) {
|
|
usb_set_serial_port_data(serial->port[i], NULL);
|
|
kfree(priv);
|
|
}
|
|
}
|
|
}
|
|
|
|
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 ktermios *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);
|
|
|
|
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");
|
|
|