736 lines
20 KiB
Diff
736 lines
20 KiB
Diff
From: Matthew Garrett <mjg@redhat.com>
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Date: Thu, 1 Apr 2010 12:31:08 -0400
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Subject: [PATCH] USB: option: Use generic USB wwan code
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commit 8b4c6a3ab596961b784659c71dc24b341f938a1a upstream.
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As this code was simply factored out of option, this is a simple
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conversion.
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Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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[mhy: Backport to 2.6.32]
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---
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--- a/drivers/usb/serial/Kconfig
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+++ b/drivers/usb/serial/Kconfig
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@@ -581,6 +581,7 @@ config USB_SERIAL_WWAN
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config USB_SERIAL_OPTION
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tristate "USB driver for GSM and CDMA modems"
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+ select USB_SERIAL_WWAN
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help
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Say Y here if you have a GSM or CDMA modem that's connected to USB.
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--- a/drivers/usb/serial/option.c
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+++ b/drivers/usb/serial/option.c
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@@ -41,35 +41,14 @@
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#include <linux/bitops.h>
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#include <linux/usb.h>
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#include <linux/usb/serial.h>
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+#include "usb-wwan.h"
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/* Function prototypes */
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static int option_probe(struct usb_serial *serial,
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const struct usb_device_id *id);
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-static int option_open(struct tty_struct *tty, struct usb_serial_port *port);
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-static void option_close(struct usb_serial_port *port);
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-static void option_dtr_rts(struct usb_serial_port *port, int on);
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-
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-static int option_startup(struct usb_serial *serial);
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-static void option_disconnect(struct usb_serial *serial);
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-static void option_release(struct usb_serial *serial);
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-static int option_write_room(struct tty_struct *tty);
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-
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+static int option_send_setup(struct usb_serial_port *port);
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static void option_instat_callback(struct urb *urb);
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-static int option_write(struct tty_struct *tty, 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 tty_struct *tty);
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-static void option_set_termios(struct tty_struct *tty,
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- struct usb_serial_port *port, struct ktermios *old);
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-static int option_tiocmget(struct tty_struct *tty, struct file *file);
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-static int option_tiocmset(struct tty_struct *tty, 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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-#ifdef CONFIG_PM
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-static int option_suspend(struct usb_serial *serial, pm_message_t message);
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-static int option_resume(struct usb_serial *serial);
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-#endif
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-
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/* Vendor and product IDs */
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#define OPTION_VENDOR_ID 0x0AF0
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#define OPTION_PRODUCT_COLT 0x5000
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@@ -680,22 +659,22 @@
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.id_table = option_ids,
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.num_ports = 1,
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.probe = option_probe,
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- .open = option_open,
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- .close = option_close,
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- .dtr_rts = option_dtr_rts,
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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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- .set_termios = option_set_termios,
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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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- .disconnect = option_disconnect,
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- .release = option_release,
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+ .open = usb_wwan_open,
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+ .close = usb_wwan_close,
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+ .dtr_rts = usb_wwan_dtr_rts,
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+ .write = usb_wwan_write,
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+ .write_room = usb_wwan_write_room,
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+ .chars_in_buffer = usb_wwan_chars_in_buffer,
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+ .set_termios = usb_wwan_set_termios,
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+ .tiocmget = usb_wwan_tiocmget,
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+ .tiocmset = usb_wwan_tiocmset,
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+ .attach = usb_wwan_startup,
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+ .disconnect = usb_wwan_disconnect,
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+ .release = usb_wwan_release,
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.read_int_callback = option_instat_callback,
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#ifdef CONFIG_PM
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- .suspend = option_suspend,
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- .resume = option_resume,
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+ .suspend = usb_wwan_suspend,
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+ .resume = usb_wwan_resume,
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#endif
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};
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@@ -708,12 +687,6 @@
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#define IN_BUFLEN 4096
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#define OUT_BUFLEN 4096
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-struct option_intf_private {
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- spinlock_t susp_lock;
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- unsigned int suspended:1;
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- int in_flight;
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-};
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-
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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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@@ -770,209 +743,21 @@
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static int option_probe(struct usb_serial *serial,
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const struct usb_device_id *id)
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{
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- struct option_intf_private *data;
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+ struct usb_wwan_intf_private *data;
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/* D-Link DWM 652 still exposes CD-Rom emulation interface in modem mode */
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if (serial->dev->descriptor.idVendor == DLINK_VENDOR_ID &&
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serial->dev->descriptor.idProduct == DLINK_PRODUCT_DWM_652 &&
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serial->interface->cur_altsetting->desc.bInterfaceClass == 0x8)
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return -ENODEV;
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- data = serial->private = kzalloc(sizeof(struct option_intf_private), GFP_KERNEL);
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+ data = serial->private = kzalloc(sizeof(struct usb_wwan_intf_private), GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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+ data->send_setup = option_send_setup;
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spin_lock_init(&data->susp_lock);
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return 0;
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}
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-static void option_set_termios(struct tty_struct *tty,
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- struct usb_serial_port *port, struct ktermios *old_termios)
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-{
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- dbg("%s", __func__);
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- /* Doesn't support option setting */
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- tty_termios_copy_hw(tty->termios, old_termios);
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- option_send_setup(port);
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-}
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-
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-static int option_tiocmget(struct tty_struct *tty, struct file *file)
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-{
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- struct usb_serial_port *port = tty->driver_data;
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- unsigned int value;
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- struct option_port_private *portdata;
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-
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- portdata = usb_get_serial_port_data(port);
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-
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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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-
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- return value;
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-}
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-
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-static int option_tiocmset(struct tty_struct *tty, struct file *file,
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- unsigned int set, unsigned int clear)
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-{
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- struct usb_serial_port *port = tty->driver_data;
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- struct option_port_private *portdata;
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-
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- portdata = usb_get_serial_port_data(port);
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-
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- /* FIXME: what locks portdata fields ? */
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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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-
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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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-
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-/* Write */
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-static int option_write(struct tty_struct *tty, 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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- struct option_intf_private *intfdata;
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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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- unsigned long flags;
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-
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- portdata = usb_get_serial_port_data(port);
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- intfdata = port->serial->private;
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-
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- dbg("%s: write (%d chars)", __func__, count);
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-
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- i = 0;
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- left = count;
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- for (i = 0; left > 0 && i < N_OUT_URB; i++) {
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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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-
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- this_urb = portdata->out_urbs[i];
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- if (test_and_set_bit(i, &portdata->out_busy)) {
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- if (time_before(jiffies,
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- portdata->tx_start_time[i] + 10 * HZ))
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- continue;
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- usb_unlink_urb(this_urb);
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- continue;
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- }
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- dbg("%s: endpoint %d buf %d", __func__,
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- usb_pipeendpoint(this_urb->pipe), i);
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-
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- err = usb_autopm_get_interface_async(port->serial->interface);
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- if (err < 0)
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- break;
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-
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- /* send the data */
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- memcpy(this_urb->transfer_buffer, buf, todo);
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- this_urb->transfer_buffer_length = todo;
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-
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- spin_lock_irqsave(&intfdata->susp_lock, flags);
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- if (intfdata->suspended) {
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- usb_anchor_urb(this_urb, &portdata->delayed);
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- spin_unlock_irqrestore(&intfdata->susp_lock, flags);
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- } else {
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- intfdata->in_flight++;
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- spin_unlock_irqrestore(&intfdata->susp_lock, flags);
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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 "
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- "(%d)", this_urb, err);
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- clear_bit(i, &portdata->out_busy);
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- spin_lock_irqsave(&intfdata->susp_lock, flags);
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- intfdata->in_flight--;
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- spin_unlock_irqrestore(&intfdata->susp_lock, flags);
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- continue;
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- }
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- }
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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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-
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- count -= left;
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- dbg("%s: wrote (did %d)", __func__, count);
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- return count;
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-}
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-
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-static void option_indat_callback(struct urb *urb)
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-{
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- int 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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- int status = urb->status;
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-
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- dbg("%s: %p", __func__, urb);
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-
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- endpoint = usb_pipeendpoint(urb->pipe);
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- port = urb->context;
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-
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- if (status) {
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- dbg("%s: nonzero status: %d on endpoint %02x.",
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- __func__, status, endpoint);
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- } else {
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- tty = tty_port_tty_get(&port->port);
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- if (urb->actual_length) {
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- tty_buffer_request_room(tty, urb->actual_length);
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- tty_insert_flip_string(tty, data, urb->actual_length);
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- tty_flip_buffer_push(tty);
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- } else
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- dbg("%s: empty read urb received", __func__);
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- tty_kref_put(tty);
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-
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- /* Resubmit urb so we continue receiving */
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- if (port->port.count && 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. "
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- "(%d)", __func__, err);
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- else
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- usb_mark_last_busy(port->serial->dev);
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- }
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-
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- }
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- return;
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-}
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-
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-static void option_outdat_callback(struct urb *urb)
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-{
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- struct usb_serial_port *port;
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- struct option_port_private *portdata;
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- struct option_intf_private *intfdata;
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- int i;
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-
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- dbg("%s", __func__);
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-
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- port = urb->context;
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- intfdata = port->serial->private;
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-
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- usb_serial_port_softint(port);
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- usb_autopm_put_interface_async(port->serial->interface);
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- portdata = usb_get_serial_port_data(port);
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- spin_lock(&intfdata->susp_lock);
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- intfdata->in_flight--;
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- spin_unlock(&intfdata->susp_lock);
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-
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- for (i = 0; i < N_OUT_URB; ++i) {
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- if (portdata->out_urbs[i] == urb) {
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- smp_mb__before_clear_bit();
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- clear_bit(i, &portdata->out_busy);
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- break;
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- }
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- }
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-}
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-
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static void option_instat_callback(struct urb *urb)
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{
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int err;
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@@ -1029,183 +814,6 @@
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}
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}
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-static int option_write_room(struct tty_struct *tty)
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-{
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- struct usb_serial_port *port = tty->driver_data;
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- struct option_port_private *portdata;
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- int i;
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- int data_len = 0;
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- struct urb *this_urb;
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-
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- portdata = usb_get_serial_port_data(port);
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-
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- for (i = 0; i < N_OUT_URB; i++) {
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- this_urb = portdata->out_urbs[i];
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- if (this_urb && !test_bit(i, &portdata->out_busy))
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- data_len += OUT_BUFLEN;
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- }
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-
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- dbg("%s: %d", __func__, data_len);
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- return data_len;
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-}
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-
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-static int option_chars_in_buffer(struct tty_struct *tty)
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-{
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- struct usb_serial_port *port = tty->driver_data;
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- struct option_port_private *portdata;
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- int i;
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- int data_len = 0;
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- struct urb *this_urb;
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-
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- portdata = usb_get_serial_port_data(port);
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-
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- for (i = 0; i < N_OUT_URB; i++) {
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- this_urb = portdata->out_urbs[i];
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- /* FIXME: This locking is insufficient as this_urb may
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- go unused during the test */
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- if (this_urb && test_bit(i, &portdata->out_busy))
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- data_len += this_urb->transfer_buffer_length;
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- }
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- dbg("%s: %d", __func__, data_len);
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- return data_len;
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-}
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-
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-static int option_open(struct tty_struct *tty, struct usb_serial_port *port)
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-{
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- struct option_port_private *portdata;
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- struct option_intf_private *intfdata;
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- struct usb_serial *serial = port->serial;
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- int i, err;
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- struct urb *urb;
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-
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- portdata = usb_get_serial_port_data(port);
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- intfdata = serial->private;
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-
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- dbg("%s", __func__);
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-
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- /* Start reading from the IN endpoint */
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- for (i = 0; i < N_IN_URB; i++) {
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- urb = portdata->in_urbs[i];
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- if (!urb)
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- continue;
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- err = usb_submit_urb(urb, GFP_KERNEL);
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- if (err) {
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- dbg("%s: submit urb %d failed (%d) %d",
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- __func__, i, err,
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- urb->transfer_buffer_length);
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- }
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- }
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-
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- option_send_setup(port);
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-
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- serial->interface->needs_remote_wakeup = 1;
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- spin_lock_irq(&intfdata->susp_lock);
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- portdata->opened = 1;
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- spin_unlock_irq(&intfdata->susp_lock);
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- usb_autopm_put_interface(serial->interface);
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-
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- return 0;
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-}
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-
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-static void option_dtr_rts(struct usb_serial_port *port, int on)
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-{
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- struct usb_serial *serial = port->serial;
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- struct option_port_private *portdata;
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-
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- dbg("%s", __func__);
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- portdata = usb_get_serial_port_data(port);
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- mutex_lock(&serial->disc_mutex);
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- portdata->rts_state = on;
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- portdata->dtr_state = on;
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- if (serial->dev)
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- option_send_setup(port);
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- mutex_unlock(&serial->disc_mutex);
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-}
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-
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-
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-static void option_close(struct usb_serial_port *port)
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-{
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- int i;
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- struct usb_serial *serial = port->serial;
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- struct option_port_private *portdata;
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- struct option_intf_private *intfdata = port->serial->private;
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-
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- dbg("%s", __func__);
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- portdata = usb_get_serial_port_data(port);
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-
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- if (serial->dev) {
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- /* Stop reading/writing urbs */
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- spin_lock_irq(&intfdata->susp_lock);
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- portdata->opened = 0;
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- spin_unlock_irq(&intfdata->susp_lock);
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-
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- for (i = 0; i < N_IN_URB; i++)
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- usb_kill_urb(portdata->in_urbs[i]);
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- for (i = 0; i < N_OUT_URB; i++)
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- usb_kill_urb(portdata->out_urbs[i]);
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- usb_autopm_get_interface(serial->interface);
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- serial->interface->needs_remote_wakeup = 0;
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- }
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-}
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-
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-/* Helper functions used by option_setup_urbs */
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-static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
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- int dir, void *ctx, char *buf, int len,
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- void (*callback)(struct urb *))
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-{
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- struct urb *urb;
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-
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- if (endpoint == -1)
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- return NULL; /* endpoint not needed */
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-
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- urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
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- if (urb == NULL) {
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- dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
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- return NULL;
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|
- }
|
|
-
|
|
- /* 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 i, j;
|
|
- struct usb_serial_port *port;
|
|
- struct option_port_private *portdata;
|
|
-
|
|
- dbg("%s", __func__);
|
|
-
|
|
- for (i = 0; i < serial->num_ports; i++) {
|
|
- port = serial->port[i];
|
|
- 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);
|
|
- }
|
|
- }
|
|
-}
|
|
-
|
|
-
|
|
/** send RTS/DTR state to the port.
|
|
*
|
|
* This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
|
|
@@ -1231,224 +839,6 @@
|
|
0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
|
|
}
|
|
|
|
-static int option_startup(struct usb_serial *serial)
|
|
-{
|
|
- int i, j, err;
|
|
- struct usb_serial_port *port;
|
|
- struct option_port_private *portdata;
|
|
- u8 *buffer;
|
|
-
|
|
- dbg("%s", __func__);
|
|
-
|
|
- /* Now setup per port private data */
|
|
- for (i = 0; i < serial->num_ports; i++) {
|
|
- port = serial->port[i];
|
|
- portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
|
|
- if (!portdata) {
|
|
- dbg("%s: kmalloc for option_port_private (%d) failed!.",
|
|
- __func__, i);
|
|
- return 1;
|
|
- }
|
|
- init_usb_anchor(&portdata->delayed);
|
|
-
|
|
- for (j = 0; j < N_IN_URB; j++) {
|
|
- buffer = (u8 *)__get_free_page(GFP_KERNEL);
|
|
- if (!buffer)
|
|
- goto bail_out_error;
|
|
- portdata->in_buffer[j] = buffer;
|
|
- }
|
|
-
|
|
- for (j = 0; j < N_OUT_URB; j++) {
|
|
- buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
|
|
- if (!buffer)
|
|
- goto bail_out_error2;
|
|
- portdata->out_buffer[j] = buffer;
|
|
- }
|
|
-
|
|
- 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",
|
|
- __func__, err);
|
|
- }
|
|
- option_setup_urbs(serial);
|
|
- return 0;
|
|
-
|
|
-bail_out_error2:
|
|
- for (j = 0; j < N_OUT_URB; j++)
|
|
- kfree(portdata->out_buffer[j]);
|
|
-bail_out_error:
|
|
- for (j = 0; j < N_IN_URB; j++)
|
|
- if (portdata->in_buffer[j])
|
|
- free_page((unsigned long)portdata->in_buffer[j]);
|
|
- kfree(portdata);
|
|
- return 1;
|
|
-}
|
|
-
|
|
-static void stop_read_write_urbs(struct usb_serial *serial)
|
|
-{
|
|
- int i, j;
|
|
- struct usb_serial_port *port;
|
|
- struct option_port_private *portdata;
|
|
-
|
|
- /* 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++)
|
|
- usb_kill_urb(portdata->in_urbs[j]);
|
|
- for (j = 0; j < N_OUT_URB; j++)
|
|
- usb_kill_urb(portdata->out_urbs[j]);
|
|
- }
|
|
-}
|
|
-
|
|
-static void option_disconnect(struct usb_serial *serial)
|
|
-{
|
|
- dbg("%s", __func__);
|
|
-
|
|
- stop_read_write_urbs(serial);
|
|
-}
|
|
-
|
|
-static void option_release(struct usb_serial *serial)
|
|
-{
|
|
- int i, j;
|
|
- struct usb_serial_port *port;
|
|
- struct option_port_private *portdata;
|
|
-
|
|
- dbg("%s", __func__);
|
|
-
|
|
- /* 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]);
|
|
- free_page((unsigned long)
|
|
- portdata->in_buffer[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]);
|
|
- kfree(portdata->out_buffer[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));
|
|
- }
|
|
-}
|
|
-
|
|
-#ifdef CONFIG_PM
|
|
-static int option_suspend(struct usb_serial *serial, pm_message_t message)
|
|
-{
|
|
- struct option_intf_private *intfdata = serial->private;
|
|
- int b;
|
|
-
|
|
- dbg("%s entered", __func__);
|
|
-
|
|
- if (serial->dev->auto_pm) {
|
|
- spin_lock_irq(&intfdata->susp_lock);
|
|
- b = intfdata->in_flight;
|
|
- spin_unlock_irq(&intfdata->susp_lock);
|
|
-
|
|
- if (b)
|
|
- return -EBUSY;
|
|
- }
|
|
-
|
|
- spin_lock_irq(&intfdata->susp_lock);
|
|
- intfdata->suspended = 1;
|
|
- spin_unlock_irq(&intfdata->susp_lock);
|
|
- stop_read_write_urbs(serial);
|
|
-
|
|
- return 0;
|
|
-}
|
|
-
|
|
-static void play_delayed(struct usb_serial_port *port)
|
|
-{
|
|
- struct option_intf_private *data;
|
|
- struct option_port_private *portdata;
|
|
- struct urb *urb;
|
|
- int err;
|
|
-
|
|
- portdata = usb_get_serial_port_data(port);
|
|
- data = port->serial->private;
|
|
- while ((urb = usb_get_from_anchor(&portdata->delayed))) {
|
|
- err = usb_submit_urb(urb, GFP_ATOMIC);
|
|
- if (!err)
|
|
- data->in_flight++;
|
|
- }
|
|
-}
|
|
-
|
|
-static int option_resume(struct usb_serial *serial)
|
|
-{
|
|
- int i, j;
|
|
- struct usb_serial_port *port;
|
|
- struct option_intf_private *intfdata = serial->private;
|
|
- struct option_port_private *portdata;
|
|
- struct urb *urb;
|
|
- int err = 0;
|
|
-
|
|
- dbg("%s entered", __func__);
|
|
- /* get the interrupt URBs resubmitted unconditionally */
|
|
- for (i = 0; i < serial->num_ports; i++) {
|
|
- port = serial->port[i];
|
|
- if (!port->interrupt_in_urb) {
|
|
- dbg("%s: No interrupt URB for port %d\n", __func__, i);
|
|
- continue;
|
|
- }
|
|
- err = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
|
|
- dbg("Submitted interrupt URB for port %d (result %d)", i, err);
|
|
- if (err < 0) {
|
|
- err("%s: Error %d for interrupt URB of port%d",
|
|
- __func__, err, i);
|
|
- goto err_out;
|
|
- }
|
|
- }
|
|
-
|
|
- for (i = 0; i < serial->num_ports; i++) {
|
|
- /* walk all ports */
|
|
- port = serial->port[i];
|
|
- portdata = usb_get_serial_port_data(port);
|
|
-
|
|
- /* skip closed ports */
|
|
- spin_lock_irq(&intfdata->susp_lock);
|
|
- if (!portdata->opened) {
|
|
- spin_unlock_irq(&intfdata->susp_lock);
|
|
- continue;
|
|
- }
|
|
-
|
|
- for (j = 0; j < N_IN_URB; j++) {
|
|
- urb = portdata->in_urbs[j];
|
|
- err = usb_submit_urb(urb, GFP_ATOMIC);
|
|
- if (err < 0) {
|
|
- err("%s: Error %d for bulk URB %d",
|
|
- __func__, err, i);
|
|
- spin_unlock_irq(&intfdata->susp_lock);
|
|
- goto err_out;
|
|
- }
|
|
- }
|
|
- play_delayed(port);
|
|
- spin_unlock_irq(&intfdata->susp_lock);
|
|
- }
|
|
- spin_lock_irq(&intfdata->susp_lock);
|
|
- intfdata->suspended = 0;
|
|
- spin_unlock_irq(&intfdata->susp_lock);
|
|
-err_out:
|
|
- return err;
|
|
-}
|
|
-#endif
|
|
-
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_VERSION(DRIVER_VERSION);
|