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USB: option: Use generic USB wwan code
As this code was simply factored out of option, this is a simple conversion. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Matthew Garrett
Greg Kroah-Hartman
parent
0d4561947b
commit
8b4c6a3ab5
@ -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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@ -42,35 +42,14 @@
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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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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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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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/* 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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@ -757,22 +736,22 @@ static struct usb_serial_driver option_1port_device = {
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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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@ -785,13 +764,6 @@ static int debug;
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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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struct option_blacklist_info *blacklist_info;
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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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@ -848,8 +820,7 @@ module_exit(option_exit);
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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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@ -862,11 +833,13 @@ static int option_probe(struct usb_serial *serial,
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serial->interface->cur_altsetting->desc.bInterfaceClass != 0xff)
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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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data->blacklist_info = (struct option_blacklist_info*) id->driver_info;
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data->private = (void *)id->driver_info;
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return 0;
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}
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@ -887,205 +860,6 @@ static enum option_blacklist_reason is_blacklisted(const u8 ifnum,
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return OPTION_BLACKLIST_NONE;
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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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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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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 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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portdata = usb_get_serial_port_data(port);
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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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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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/* 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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portdata = usb_get_serial_port_data(port);
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intfdata = port->serial->private;
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dbg("%s: write (%d chars)", __func__, count);
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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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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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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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/* 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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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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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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dbg("%s: wrote (did %d)", __func__, count);
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return count;
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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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dbg("%s: %p", __func__, urb);
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endpoint = usb_pipeendpoint(urb->pipe);
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port = urb->context;
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switch (status) {
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case 0:
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/* success */
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break;
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case -ECONNRESET:
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case -ENOENT:
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case -ESHUTDOWN:
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/* this urb is terminated, clean up */
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dbg("%s: urb shutting down with status: %d on endpoint %02x.",
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__func__, status, endpoint);
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return;
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default:
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dbg("%s: nonzero status: %d on endpoint %02x.",
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__func__, status, endpoint);
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goto exit;
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}
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if (urb->actual_length) {
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tty = tty_port_tty_get(&port->port);
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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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tty_kref_put(tty);
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} else
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dbg("%s: empty read urb received", __func__);
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exit:
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/* Resubmit urb so we continue receiving */
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err = usb_submit_urb(urb, GFP_ATOMIC);
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if (err && err != -EPERM)
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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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return;
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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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dbg("%s", __func__);
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port = urb->context;
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intfdata = port->serial->private;
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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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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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static void option_instat_callback(struct urb *urb)
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{
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int err;
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@ -1142,183 +916,6 @@ static void option_instat_callback(struct urb *urb)
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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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portdata = usb_get_serial_port_data(port);
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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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dbg("%s: %d", __func__, data_len);
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return data_len;
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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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portdata = usb_get_serial_port_data(port);
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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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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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portdata = usb_get_serial_port_data(port);
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intfdata = serial->private;
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dbg("%s", __func__);
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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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option_send_setup(port);
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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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return 0;
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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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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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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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dbg("%s", __func__);
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portdata = usb_get_serial_port_data(port);
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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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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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/* 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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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.", __func__, 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 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
|
||||
@ -1327,15 +924,16 @@ static void option_setup_urbs(struct usb_serial *serial)
|
||||
static int option_send_setup(struct usb_serial_port *port)
|
||||
{
|
||||
struct usb_serial *serial = port->serial;
|
||||
struct option_intf_private *intfdata =
|
||||
(struct option_intf_private *) serial->private;
|
||||
struct usb_wwan_intf_private *intfdata =
|
||||
(struct usb_wwan_intf_private *) serial->private;
|
||||
struct option_port_private *portdata;
|
||||
int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
|
||||
int val = 0;
|
||||
dbg("%s", __func__);
|
||||
|
||||
if (is_blacklisted(ifNum, intfdata->blacklist_info) ==
|
||||
OPTION_BLACKLIST_SENDSETUP) {
|
||||
if (is_blacklisted(ifNum,
|
||||
(struct option_blacklist_info *) intfdata->private)
|
||||
== OPTION_BLACKLIST_SENDSETUP) {
|
||||
dbg("No send_setup on blacklisted interface #%d\n", ifNum);
|
||||
return -EIO;
|
||||
}
|
||||
@ -1352,224 +950,6 @@ static int option_send_setup(struct usb_serial_port *port)
|
||||
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 (message.event & PM_EVENT_AUTO) {
|
||||
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", __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);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user