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[PATCH] USB: add Option Card driver
This patch adds a new driver for "Option" cards. This is a GSM data card, controlled by three "serial ports" which are connected via an OHCI adapter, all located on an oversized PC-Card. It's sold by several GSM service providers. Traditionally, this card has been accessed via the standard serial driver and appropriate vendor= and product= options. However, testing has revealed several problems with this approach, including hung data transfers and lost data blocks when receiving. Therefore, I've written a separate driver. Signed-off-by: Matthias Urlichs <smurf@smurf.noris.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Matthias Urlichs
Greg KH
parent
4871d3be13
commit
58cfe9113e
@ -455,6 +455,17 @@ config USB_SERIAL_XIRCOM
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To compile this driver as a module, choose M here: the
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module will be called keyspan_pda.
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config USB_SERIAL_OPTION
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tristate "USB Option PCMCIA serial driver"
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depends on USB_SERIAL && USB_OHCI_HCD && PCCARD
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help
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Say Y here if you want to use an Option card. This is a
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GSM card, controlled by three serial ports which are connected
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via an OHCI adapter located on a PC card.
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To compile this driver as a module, choose M here: the
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module will be called option.
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config USB_SERIAL_OMNINET
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tristate "USB ZyXEL omni.net LCD Plus Driver (EXPERIMENTAL)"
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depends on USB_SERIAL && EXPERIMENTAL
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@ -32,6 +32,7 @@ obj-$(CONFIG_USB_SERIAL_KLSI) += kl5kusb105.o
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obj-$(CONFIG_USB_SERIAL_KOBIL_SCT) += kobil_sct.o
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obj-$(CONFIG_USB_SERIAL_MCT_U232) += mct_u232.o
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obj-$(CONFIG_USB_SERIAL_OMNINET) += omninet.o
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obj-$(CONFIG_USB_SERIAL_OPTION) += option.o
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obj-$(CONFIG_USB_SERIAL_PL2303) += pl2303.o
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obj-$(CONFIG_USB_SERIAL_SAFE) += safe_serial.o
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obj-$(CONFIG_USB_SERIAL_TI) += ti_usb_3410_5052.o
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729
drivers/usb/serial/option.c
Normal file
729
drivers/usb/serial/option.c
Normal file
@ -0,0 +1,729 @@
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/*
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Option Card (PCMCIA to) USB to Serial Driver
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Copyright (C) 2005 Matthias Urlichs <smurf@smurf.noris.de>
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This driver is free software; you can redistribute it and/or modify
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it under the terms of Version 2 of the GNU General Public License as
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published by the Free Software Foundation.
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Portions copied from the Keyspan driver by Hugh Blemings <hugh@blemings.org>
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History:
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2005-05-19 v0.1 Initial version, based on incomplete docs
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and analysis of misbehavior of the standard driver
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2005-05-20 v0.2 Extended the input buffer to avoid losing
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random 64-byte chunks of data
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2005-05-21 v0.3 implemented chars_in_buffer()
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turned on low_latency
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simplified the code somewhat
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*/
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#define DRIVER_VERSION "v0.3"
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#define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>"
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#define DRIVER_DESC "Option Card (PC-Card to) USB to Serial Driver"
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#include <linux/config.h>
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#include <linux/kernel.h>
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#include <linux/jiffies.h>
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#include <linux/errno.h>
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#include <linux/tty.h>
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#include <linux/tty_flip.h>
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#include <linux/module.h>
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#include <linux/usb.h>
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#include "usb-serial.h"
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/* Function prototypes */
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static int option_open (struct usb_serial_port *port, struct file *filp);
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static void option_close (struct usb_serial_port *port, struct file *filp);
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static int option_startup (struct usb_serial *serial);
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static void option_shutdown (struct usb_serial *serial);
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static void option_rx_throttle (struct usb_serial_port *port);
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static void option_rx_unthrottle (struct usb_serial_port *port);
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static int option_write_room (struct usb_serial_port *port);
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static void option_instat_callback(struct urb *urb, struct pt_regs *regs);
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static int option_write (struct usb_serial_port *port,
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const unsigned char *buf, int count);
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static int option_chars_in_buffer (struct usb_serial_port *port);
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static int option_ioctl (struct usb_serial_port *port, struct file *file,
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unsigned int cmd, unsigned long arg);
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static void option_set_termios (struct usb_serial_port *port,
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struct termios *old);
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static void option_break_ctl (struct usb_serial_port *port, int break_state);
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static int option_tiocmget (struct usb_serial_port *port, struct file *file);
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static int option_tiocmset (struct usb_serial_port *port, struct file *file,
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unsigned int set, unsigned int clear);
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static int option_send_setup (struct usb_serial_port *port);
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/* Vendor and product IDs */
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#define OPTION_VENDOR_ID 0x0AF0
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#define OPTION_PRODUCT_OLD 0x5000
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#define OPTION_PRODUCT_WLAN 0x6000
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static struct usb_device_id option_ids[] = {
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{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_OLD) },
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{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_WLAN) },
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, option_ids);
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static struct usb_driver option_driver = {
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.owner = THIS_MODULE,
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.name = "option",
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.probe = usb_serial_probe,
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.disconnect = usb_serial_disconnect,
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.id_table = option_ids,
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};
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/* The card has three separate interfaces, wich the serial driver
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* recognizes separately, thus num_port=1.
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*/
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static struct usb_serial_device_type option_3port_device = {
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.owner = THIS_MODULE,
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.name = "Option 3-port card",
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.short_name = "option",
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.id_table = option_ids,
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.num_interrupt_in = NUM_DONT_CARE,
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.num_bulk_in = NUM_DONT_CARE,
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.num_bulk_out = NUM_DONT_CARE,
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.num_ports = 1, /* 3 */
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.open = option_open,
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.close = option_close,
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.write = option_write,
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.write_room = option_write_room,
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.chars_in_buffer = option_chars_in_buffer,
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.throttle = option_rx_throttle,
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.unthrottle = option_rx_unthrottle,
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.ioctl = option_ioctl,
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.set_termios = option_set_termios,
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.break_ctl = option_break_ctl,
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.tiocmget = option_tiocmget,
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.tiocmset = option_tiocmset,
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.attach = option_startup,
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.shutdown = option_shutdown,
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.read_int_callback = option_instat_callback,
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};
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static int debug;
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/* per port private data */
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#define N_IN_URB 4
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#define N_OUT_URB 1
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#define IN_BUFLEN 1024
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#define OUT_BUFLEN 1024
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struct option_port_private {
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/* Input endpoints and buffer for this port */
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struct urb *in_urbs[N_IN_URB];
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char in_buffer[N_IN_URB][IN_BUFLEN];
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/* Output endpoints and buffer for this port */
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struct urb *out_urbs[N_OUT_URB];
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char out_buffer[N_OUT_URB][OUT_BUFLEN];
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/* Settings for the port */
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int rts_state; /* Handshaking pins (outputs) */
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int dtr_state;
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int cts_state; /* Handshaking pins (inputs) */
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int dsr_state;
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int dcd_state;
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int ri_state;
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// int break_on;
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unsigned long tx_start_time[N_OUT_URB];
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};
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/* Functions used by new usb-serial code. */
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static int __init
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option_init (void)
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{
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int retval;
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retval = usb_serial_register(&option_3port_device);
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if (retval)
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goto failed_3port_device_register;
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retval = usb_register(&option_driver);
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if (retval)
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goto failed_driver_register;
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info(DRIVER_DESC ": " DRIVER_VERSION);
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return 0;
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failed_driver_register:
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usb_serial_deregister (&option_3port_device);
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failed_3port_device_register:
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return retval;
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}
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static void __exit
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option_exit (void)
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{
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usb_deregister (&option_driver);
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usb_serial_deregister (&option_3port_device);
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}
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module_init(option_init);
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module_exit(option_exit);
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static void
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option_rx_throttle (struct usb_serial_port *port)
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{
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dbg("%s", __FUNCTION__);
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}
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static void
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option_rx_unthrottle (struct usb_serial_port *port)
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{
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dbg("%s", __FUNCTION__);
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}
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static void
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option_break_ctl (struct usb_serial_port *port, int break_state)
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{
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/* Unfortunately, I don't know how to send a break */
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dbg("%s", __FUNCTION__);
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}
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static void
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option_set_termios (struct usb_serial_port *port,
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struct termios *old_termios)
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{
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dbg("%s", __FUNCTION__);
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option_send_setup(port);
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}
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static int
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option_tiocmget(struct usb_serial_port *port, struct file *file)
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{
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unsigned int value;
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struct option_port_private *portdata;
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portdata = usb_get_serial_port_data(port);
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value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
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((portdata->dtr_state) ? TIOCM_DTR : 0) |
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((portdata->cts_state) ? TIOCM_CTS : 0) |
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((portdata->dsr_state) ? TIOCM_DSR : 0) |
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((portdata->dcd_state) ? TIOCM_CAR : 0) |
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((portdata->ri_state) ? TIOCM_RNG : 0);
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return value;
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}
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static int
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option_tiocmset (struct usb_serial_port *port, struct file *file,
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unsigned int set, unsigned int clear)
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{
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struct option_port_private *portdata;
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portdata = usb_get_serial_port_data(port);
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if (set & TIOCM_RTS)
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portdata->rts_state = 1;
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if (set & TIOCM_DTR)
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portdata->dtr_state = 1;
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if (clear & TIOCM_RTS)
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portdata->rts_state = 0;
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if (clear & TIOCM_DTR)
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portdata->dtr_state = 0;
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return option_send_setup(port);
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}
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static int
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option_ioctl (struct usb_serial_port *port, struct file *file,
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unsigned int cmd, unsigned long arg)
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{
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return -ENOIOCTLCMD;
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}
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/* Write */
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static int
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option_write(struct usb_serial_port *port,
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const unsigned char *buf, int count)
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{
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struct option_port_private *portdata;
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int i;
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int left, todo;
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struct urb *this_urb = NULL; /* spurious */
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int err;
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portdata = usb_get_serial_port_data(port);
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dbg("%s: write (%d chars)", __FUNCTION__, count);
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#if 0
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spin_lock(&port->lock);
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if (port->write_urb_busy) {
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spin_unlock(&port->lock);
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dbg("%s: already writing", __FUNCTION__);
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return 0;
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}
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port->write_urb_busy = 1;
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spin_unlock(&port->lock);
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#endif
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i = 0;
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left = count;
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while (left>0) {
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todo = left;
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if (todo > OUT_BUFLEN)
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todo = OUT_BUFLEN;
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for (;i < N_OUT_URB; i++) {
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/* Check we have a valid urb/endpoint before we use it... */
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this_urb = portdata->out_urbs[i];
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if (this_urb->status != -EINPROGRESS)
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break;
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if (this_urb->transfer_flags & URB_ASYNC_UNLINK)
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continue;
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if (time_before(jiffies, portdata->tx_start_time[i] + 10 * HZ))
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continue;
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this_urb->transfer_flags |= URB_ASYNC_UNLINK;
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usb_unlink_urb(this_urb);
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}
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if (i == N_OUT_URB) {
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/* no bulk out free! */
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dbg("%s: no output urb -- left %d", __FUNCTION__,count-left);
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#if 0
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port->write_urb_busy = 0;
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#endif
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return count-left;
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}
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dbg("%s: endpoint %d buf %d", __FUNCTION__, usb_pipeendpoint(this_urb->pipe), i);
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memcpy (this_urb->transfer_buffer, buf, todo);
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/* send the data out the bulk port */
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this_urb->transfer_buffer_length = todo;
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this_urb->transfer_flags &= ~URB_ASYNC_UNLINK;
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this_urb->dev = port->serial->dev;
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err = usb_submit_urb(this_urb, GFP_ATOMIC);
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if (err) {
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dbg("usb_submit_urb %p (write bulk) failed (%d,, has %d)", this_urb, err, this_urb->status);
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continue;
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}
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portdata->tx_start_time[i] = jiffies;
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buf += todo;
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left -= todo;
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}
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count -= left;
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#if 0
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port->write_urb_busy = 0;
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#endif
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dbg("%s: wrote (did %d)", __FUNCTION__, count);
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return count;
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}
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static void
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option_indat_callback (struct urb *urb, struct pt_regs *regs)
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{
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int i, err;
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int endpoint;
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struct usb_serial_port *port;
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struct tty_struct *tty;
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unsigned char *data = urb->transfer_buffer;
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dbg("%s: %p", __FUNCTION__, urb);
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endpoint = usb_pipeendpoint(urb->pipe);
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port = (struct usb_serial_port *) urb->context;
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if (urb->status) {
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dbg("%s: nonzero status: %d on endpoint %02x.",
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__FUNCTION__, urb->status, endpoint);
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} else {
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tty = port->tty;
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if (urb->actual_length) {
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for (i = 0; i < urb->actual_length ; ++i) {
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if (tty->flip.count >= TTY_FLIPBUF_SIZE)
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tty_flip_buffer_push(tty);
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tty_insert_flip_char(tty, data[i], 0);
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}
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tty_flip_buffer_push(tty);
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} else {
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dbg("%s: empty read urb received", __FUNCTION__);
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}
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/* Resubmit urb so we continue receiving */
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if (port->open_count && urb->status != -ESHUTDOWN) {
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err = usb_submit_urb(urb, GFP_ATOMIC);
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if (err)
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printk(KERN_ERR "%s: resubmit read urb failed. (%d)", __FUNCTION__, err);
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}
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}
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return;
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}
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static void
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option_outdat_callback (struct urb *urb, struct pt_regs *regs)
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{
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struct usb_serial_port *port;
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dbg("%s", __FUNCTION__);
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port = (struct usb_serial_port *) urb->context;
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if (port->open_count)
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schedule_work(&port->work);
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}
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static void
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option_instat_callback (struct urb *urb, struct pt_regs *regs)
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{
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int err;
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struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
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struct option_port_private *portdata = usb_get_serial_port_data(port);
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struct usb_serial *serial = port->serial;
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dbg("%s", __FUNCTION__);
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dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
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if (urb->status == 0) {
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struct usb_ctrlrequest *req_pkt =
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(struct usb_ctrlrequest *)urb->transfer_buffer;
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if (!req_pkt) {
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dbg("%s: NULL req_pkt\n", __FUNCTION__);
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return;
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}
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if ((req_pkt->bRequestType == 0xA1) && (req_pkt->bRequest == 0x20)) {
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int old_dcd_state;
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unsigned char signals = *((unsigned char *)
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urb->transfer_buffer + sizeof(struct usb_ctrlrequest));
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dbg("%s: signal x%x", __FUNCTION__, signals);
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old_dcd_state = portdata->dcd_state;
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portdata->cts_state = 1;
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portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
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portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
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portdata->ri_state = ((signals & 0x08) ? 1 : 0);
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if (port->tty && !C_CLOCAL(port->tty)
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&& old_dcd_state && !portdata->dcd_state) {
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tty_hangup(port->tty);
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}
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} else
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dbg("%s: type %x req %x", __FUNCTION__, req_pkt->bRequestType,req_pkt->bRequest);
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} else
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dbg("%s: error %d", __FUNCTION__, urb->status);
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/* Resubmit urb so we continue receiving IRQ data */
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if (urb->status != -ESHUTDOWN) {
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urb->dev = serial->dev;
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err = usb_submit_urb(urb, GFP_ATOMIC);
|
||||
if (err)
|
||||
dbg("%s: resubmit intr urb failed. (%d)", __FUNCTION__, err);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
option_write_room (struct usb_serial_port *port)
|
||||
{
|
||||
struct option_port_private *portdata;
|
||||
int i;
|
||||
int data_len = 0;
|
||||
struct urb *this_urb;
|
||||
|
||||
portdata = usb_get_serial_port_data(port);
|
||||
|
||||
for (i=0; i < N_OUT_URB; i++)
|
||||
this_urb = portdata->out_urbs[i];
|
||||
if (this_urb && this_urb->status != -EINPROGRESS)
|
||||
data_len += OUT_BUFLEN;
|
||||
|
||||
dbg("%s: %d", __FUNCTION__, data_len);
|
||||
return data_len;
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
option_chars_in_buffer (struct usb_serial_port *port)
|
||||
{
|
||||
struct option_port_private *portdata;
|
||||
int i;
|
||||
int data_len = 0;
|
||||
struct urb *this_urb;
|
||||
|
||||
portdata = usb_get_serial_port_data(port);
|
||||
|
||||
for (i=0; i < N_OUT_URB; i++)
|
||||
this_urb = portdata->out_urbs[i];
|
||||
if (this_urb && this_urb->status == -EINPROGRESS)
|
||||
data_len += this_urb->transfer_buffer_length;
|
||||
|
||||
dbg("%s: %d", __FUNCTION__, data_len);
|
||||
return data_len;
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
option_open (struct usb_serial_port *port, struct file *filp)
|
||||
{
|
||||
struct option_port_private *portdata;
|
||||
struct usb_serial *serial = port->serial;
|
||||
int i, err;
|
||||
struct urb *urb;
|
||||
|
||||
portdata = usb_get_serial_port_data(port);
|
||||
|
||||
dbg("%s", __FUNCTION__);
|
||||
|
||||
/* Set some sane defaults */
|
||||
portdata->rts_state = 1;
|
||||
portdata->dtr_state = 1;
|
||||
|
||||
/* Reset low level data toggle and start reading from endpoints */
|
||||
for (i = 0; i < N_IN_URB; i++) {
|
||||
urb = portdata->in_urbs[i];
|
||||
if (! urb)
|
||||
continue;
|
||||
if (urb->dev != serial->dev) {
|
||||
dbg("%s: dev %p != %p", __FUNCTION__, urb->dev, serial->dev);
|
||||
continue;
|
||||
}
|
||||
|
||||
/* make sure endpoint data toggle is synchronized with the device */
|
||||
|
||||
usb_clear_halt(urb->dev, urb->pipe);
|
||||
|
||||
err = usb_submit_urb(urb, GFP_KERNEL);
|
||||
if (err) {
|
||||
dbg("%s: submit urb %d failed (%d) %d", __FUNCTION__, i, err,
|
||||
urb->transfer_buffer_length);
|
||||
}
|
||||
}
|
||||
|
||||
/* Reset low level data toggle on out endpoints */
|
||||
for (i = 0; i < N_OUT_URB; i++) {
|
||||
urb = portdata->out_urbs[i];
|
||||
if (! urb)
|
||||
continue;
|
||||
urb->dev = serial->dev;
|
||||
/* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe), 0); */
|
||||
}
|
||||
|
||||
port->tty->low_latency = 1;
|
||||
|
||||
option_send_setup(port);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static inline void
|
||||
stop_urb(struct urb *urb)
|
||||
{
|
||||
if (urb && urb->status == -EINPROGRESS) {
|
||||
urb->transfer_flags &= ~URB_ASYNC_UNLINK;
|
||||
usb_kill_urb(urb);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
option_close(struct usb_serial_port *port, struct file *filp)
|
||||
{
|
||||
int i;
|
||||
struct usb_serial *serial = port->serial;
|
||||
struct option_port_private *portdata;
|
||||
|
||||
dbg("%s", __FUNCTION__);
|
||||
portdata = usb_get_serial_port_data(port);
|
||||
|
||||
portdata->rts_state = 0;
|
||||
portdata->dtr_state = 0;
|
||||
|
||||
if (serial->dev) {
|
||||
option_send_setup(port);
|
||||
|
||||
/* Stop reading/writing urbs */
|
||||
for (i = 0; i < N_IN_URB; i++)
|
||||
stop_urb(portdata->in_urbs[i]);
|
||||
for (i = 0; i < N_OUT_URB; i++)
|
||||
stop_urb(portdata->out_urbs[i]);
|
||||
}
|
||||
port->tty = NULL;
|
||||
}
|
||||
|
||||
|
||||
/* Helper functions used by option_setup_urbs */
|
||||
static struct urb *
|
||||
option_setup_urb (struct usb_serial *serial, int endpoint,
|
||||
int dir, void *ctx, char *buf, int len,
|
||||
void (*callback)(struct urb *, struct pt_regs *regs))
|
||||
{
|
||||
struct urb *urb;
|
||||
|
||||
if (endpoint == -1)
|
||||
return NULL; /* endpoint not needed */
|
||||
|
||||
urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
|
||||
if (urb == NULL) {
|
||||
dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Fill URB using supplied data. */
|
||||
usb_fill_bulk_urb(urb, serial->dev,
|
||||
usb_sndbulkpipe(serial->dev, endpoint) | dir,
|
||||
buf, len, callback, ctx);
|
||||
|
||||
return urb;
|
||||
}
|
||||
|
||||
/* Setup urbs */
|
||||
static void
|
||||
option_setup_urbs(struct usb_serial *serial)
|
||||
{
|
||||
int j;
|
||||
struct usb_serial_port *port;
|
||||
struct option_port_private *portdata;
|
||||
|
||||
dbg("%s", __FUNCTION__);
|
||||
|
||||
port = serial->port[0];
|
||||
portdata = usb_get_serial_port_data(port);
|
||||
|
||||
/* Do indat endpoints first */
|
||||
for (j = 0; j <= N_IN_URB; ++j) {
|
||||
portdata->in_urbs[j] = option_setup_urb (serial,
|
||||
port->bulk_in_endpointAddress, USB_DIR_IN, port,
|
||||
portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
|
||||
}
|
||||
|
||||
/* outdat endpoints */
|
||||
for (j = 0; j <= N_OUT_URB; ++j) {
|
||||
portdata->out_urbs[j] = option_setup_urb (serial,
|
||||
port->bulk_out_endpointAddress, USB_DIR_OUT, port,
|
||||
portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
option_send_setup(struct usb_serial_port *port)
|
||||
{
|
||||
struct usb_serial *serial = port->serial;
|
||||
struct option_port_private *portdata;
|
||||
|
||||
dbg("%s", __FUNCTION__);
|
||||
|
||||
portdata = usb_get_serial_port_data(port);
|
||||
|
||||
if (port->tty) {
|
||||
int val = 0;
|
||||
if (portdata->dtr_state)
|
||||
val |= 0x01;
|
||||
if (portdata->rts_state)
|
||||
val |= 0x02;
|
||||
|
||||
return usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
|
||||
0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
option_startup (struct usb_serial *serial)
|
||||
{
|
||||
int i, err;
|
||||
struct usb_serial_port *port;
|
||||
struct option_port_private *portdata;
|
||||
|
||||
dbg("%s", __FUNCTION__);
|
||||
|
||||
/* Now setup per port private data */
|
||||
for (i = 0; i < serial->num_ports; i++) {
|
||||
port = serial->port[i];
|
||||
portdata = kmalloc(sizeof(struct option_port_private), GFP_KERNEL);
|
||||
if (!portdata) {
|
||||
dbg("%s: kmalloc for option_port_private (%d) failed!.", __FUNCTION__, i);
|
||||
return (1);
|
||||
}
|
||||
memset(portdata, 0, sizeof(struct option_port_private));
|
||||
|
||||
usb_set_serial_port_data(port, portdata);
|
||||
|
||||
if (! port->interrupt_in_urb)
|
||||
continue;
|
||||
err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
|
||||
if (err)
|
||||
dbg("%s: submit irq_in urb failed %d", __FUNCTION__, err);
|
||||
}
|
||||
|
||||
option_setup_urbs(serial);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
option_shutdown (struct usb_serial *serial)
|
||||
{
|
||||
int i, j;
|
||||
struct usb_serial_port *port;
|
||||
struct option_port_private *portdata;
|
||||
|
||||
dbg("%s", __FUNCTION__);
|
||||
|
||||
/* Stop reading/writing urbs */
|
||||
for (i = 0; i < serial->num_ports; ++i) {
|
||||
port = serial->port[i];
|
||||
portdata = usb_get_serial_port_data(port);
|
||||
for (j = 0; j < N_IN_URB; j++)
|
||||
stop_urb(portdata->in_urbs[j]);
|
||||
for (j = 0; j < N_OUT_URB; j++)
|
||||
stop_urb(portdata->out_urbs[j]);
|
||||
}
|
||||
|
||||
/* Now free them */
|
||||
for (i = 0; i < serial->num_ports; ++i) {
|
||||
port = serial->port[i];
|
||||
portdata = usb_get_serial_port_data(port);
|
||||
|
||||
for (j = 0; j < N_IN_URB; j++) {
|
||||
if (portdata->in_urbs[j]) {
|
||||
usb_free_urb(portdata->in_urbs[j]);
|
||||
portdata->in_urbs[j] = NULL;
|
||||
}
|
||||
}
|
||||
for (j = 0; j < N_OUT_URB; j++) {
|
||||
if (portdata->out_urbs[j]) {
|
||||
usb_free_urb(portdata->out_urbs[j]);
|
||||
portdata->out_urbs[j] = NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Now free per port private data */
|
||||
for (i = 0; i < serial->num_ports; i++) {
|
||||
port = serial->port[i];
|
||||
kfree(usb_get_serial_port_data(port));
|
||||
}
|
||||
}
|
||||
|
||||
MODULE_AUTHOR(DRIVER_AUTHOR);
|
||||
MODULE_DESCRIPTION(DRIVER_DESC);
|
||||
MODULE_VERSION(DRIVER_VERSION);
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
module_param(debug, bool, S_IRUGO | S_IWUSR);
|
||||
MODULE_PARM_DESC(debug, "Debug messages");
|
||||
|
||||
Loading…
Reference in New Issue
Block a user