Lines Matching full:serial
3 * USB Serial Converter driver
13 * See Documentation/usb/usb-serial.txt for more information on using this
33 #include <linux/serial.h>
35 #include <linux/usb/serial.h>
40 #define DRIVER_DESC "USB Serial Driver core"
46 the MODULE_DEVICE_TABLE declarations in each serial driver
48 via modprobe, and modprobe will load usbserial because the serial
57 * Look up the serial port structure. If it is found and it hasn't been
63 struct usb_serial *serial; in usb_serial_port_get_by_minor() local
71 serial = port->serial; in usb_serial_port_get_by_minor()
72 mutex_lock(&serial->disc_mutex); in usb_serial_port_get_by_minor()
73 if (serial->disconnected) { in usb_serial_port_get_by_minor()
74 mutex_unlock(&serial->disc_mutex); in usb_serial_port_get_by_minor()
77 kref_get(&serial->kref); in usb_serial_port_get_by_minor()
84 static int allocate_minors(struct usb_serial *serial, int num_ports) in allocate_minors() argument
90 dev_dbg(&serial->interface->dev, "%s %d\n", __func__, num_ports); in allocate_minors()
94 port = serial->port[i]; in allocate_minors()
102 serial->minors_reserved = 1; in allocate_minors()
108 idr_remove(&serial_minors, serial->port[j]->minor); in allocate_minors()
113 static void release_minors(struct usb_serial *serial) in release_minors() argument
118 for (i = 0; i < serial->num_ports; ++i) in release_minors()
119 idr_remove(&serial_minors, serial->port[i]->minor); in release_minors()
121 serial->minors_reserved = 0; in release_minors()
126 struct usb_serial *serial; in destroy_serial() local
130 serial = to_usb_serial(kref); in destroy_serial()
133 if (serial->minors_reserved) in destroy_serial()
134 release_minors(serial); in destroy_serial()
136 if (serial->attached && serial->type->release) in destroy_serial()
137 serial->type->release(serial); in destroy_serial()
140 for (i = 0; i < serial->num_port_pointers; ++i) { in destroy_serial()
141 port = serial->port[i]; in destroy_serial()
143 port->serial = NULL; in destroy_serial()
148 usb_put_intf(serial->interface); in destroy_serial()
149 usb_put_dev(serial->dev); in destroy_serial()
150 kfree(serial); in destroy_serial()
153 void usb_serial_put(struct usb_serial *serial) in usb_serial_put() argument
155 kref_put(&serial->kref, destroy_serial); in usb_serial_put()
168 * USB serial settings but permit them to be overridden by
169 * serial->type->init_termios.
179 struct usb_serial *serial; in serial_install() local
187 serial = port->serial; in serial_install()
188 if (!try_module_get(serial->type->driver.owner)) in serial_install()
191 retval = usb_autopm_get_interface(serial->interface); in serial_install()
199 mutex_unlock(&serial->disc_mutex); in serial_install()
202 if (serial->type->init_termios) in serial_install()
203 serial->type->init_termios(tty); in serial_install()
210 usb_autopm_put_interface(serial->interface); in serial_install()
212 module_put(serial->type->driver.owner); in serial_install()
214 usb_serial_put(serial); in serial_install()
215 mutex_unlock(&serial->disc_mutex); in serial_install()
223 struct usb_serial *serial = port->serial; in serial_port_activate() local
226 mutex_lock(&serial->disc_mutex); in serial_port_activate()
227 if (serial->disconnected) in serial_port_activate()
230 retval = port->serial->type->open(tty, port); in serial_port_activate()
231 mutex_unlock(&serial->disc_mutex); in serial_port_activate()
252 * Shut down a USB serial port. Serialized against activate by the
262 struct usb_serial_driver *drv = port->serial->type; in serial_port_shutdown()
298 struct usb_serial *serial; in serial_cleanup() local
311 serial = port->serial; in serial_cleanup()
312 owner = serial->type->driver.owner; in serial_cleanup()
314 usb_autopm_put_interface(serial->interface); in serial_cleanup()
316 usb_serial_put(serial); in serial_cleanup()
326 if (port->serial->dev->state == USB_STATE_NOTATTACHED) in serial_write()
331 retval = port->serial->type->write(tty, port, buf, count); in serial_write()
344 return port->serial->type->write_room(tty); in serial_write_room()
350 struct usb_serial *serial = port->serial; in serial_chars_in_buffer() local
354 if (serial->disconnected) in serial_chars_in_buffer()
357 return serial->type->chars_in_buffer(tty); in serial_chars_in_buffer()
363 struct usb_serial *serial = port->serial; in serial_wait_until_sent() local
367 if (!port->serial->type->wait_until_sent) in serial_wait_until_sent()
370 mutex_lock(&serial->disc_mutex); in serial_wait_until_sent()
371 if (!serial->disconnected) in serial_wait_until_sent()
372 port->serial->type->wait_until_sent(tty, timeout); in serial_wait_until_sent()
373 mutex_unlock(&serial->disc_mutex); in serial_wait_until_sent()
382 if (port->serial->type->throttle) in serial_throttle()
383 port->serial->type->throttle(tty); in serial_throttle()
392 if (port->serial->type->unthrottle) in serial_unthrottle()
393 port->serial->type->unthrottle(tty); in serial_unthrottle()
406 if (port->serial->type->tiocmiwait) in serial_ioctl()
407 retval = port->serial->type->tiocmiwait(tty, arg); in serial_ioctl()
410 if (port->serial->type->ioctl) in serial_ioctl()
411 retval = port->serial->type->ioctl(tty, cmd, arg); in serial_ioctl()
423 if (port->serial->type->set_termios) in serial_set_termios()
424 port->serial->type->set_termios(tty, port, old); in serial_set_termios()
435 if (port->serial->type->break_ctl) in serial_break()
436 port->serial->type->break_ctl(tty, break_state); in serial_break()
443 struct usb_serial *serial; in serial_proc_show() local
453 serial = port->serial; in serial_proc_show()
456 if (serial->type->driver.owner) in serial_proc_show()
458 module_name(serial->type->driver.owner)); in serial_proc_show()
460 serial->type->description); in serial_proc_show()
462 le16_to_cpu(serial->dev->descriptor.idVendor), in serial_proc_show()
463 le16_to_cpu(serial->dev->descriptor.idProduct)); in serial_proc_show()
464 seq_printf(m, " num_ports:%d", serial->num_ports); in serial_proc_show()
466 usb_make_path(serial->dev, tmp, sizeof(tmp)); in serial_proc_show()
470 usb_serial_put(serial); in serial_proc_show()
471 mutex_unlock(&serial->disc_mutex); in serial_proc_show()
482 if (port->serial->type->tiocmget) in serial_tiocmget()
483 return port->serial->type->tiocmget(tty); in serial_tiocmget()
494 if (port->serial->type->tiocmset) in serial_tiocmset()
495 return port->serial->type->tiocmset(tty, set, clear); in serial_tiocmset()
506 if (port->serial->type->get_icount) in serial_get_icount()
507 return port->serial->type->get_icount(tty, icount); in serial_get_icount()
584 struct usb_serial *serial; in create_serial() local
586 serial = kzalloc(sizeof(*serial), GFP_KERNEL); in create_serial()
587 if (!serial) in create_serial()
589 serial->dev = usb_get_dev(dev); in create_serial()
590 serial->type = driver; in create_serial()
591 serial->interface = usb_get_intf(interface); in create_serial()
592 kref_init(&serial->kref); in create_serial()
593 mutex_init(&serial->disc_mutex); in create_serial()
594 serial->minors_reserved = 0; in create_serial()
596 return serial; in create_serial()
654 struct usb_serial_driver *drv = p->serial->type; in serial_port_carrier_raised()
665 struct usb_serial_driver *drv = p->serial->type; in serial_port_dtr_rts()
693 static void find_endpoints(struct usb_serial *serial, in find_endpoints() argument
696 struct device *dev = &serial->interface->dev; in find_endpoints()
706 iface_desc = serial->interface->cur_altsetting; in find_endpoints()
729 struct usb_serial_driver *type = port->serial->type; in setup_port_bulk_in()
730 struct usb_device *udev = port->serial->dev; in setup_port_bulk_in()
761 struct usb_serial_driver *type = port->serial->type; in setup_port_bulk_out()
762 struct usb_device *udev = port->serial->dev; in setup_port_bulk_out()
798 struct usb_serial_driver *type = port->serial->type; in setup_port_interrupt_in()
799 struct usb_device *udev = port->serial->dev; in setup_port_interrupt_in()
822 struct usb_serial_driver *type = port->serial->type; in setup_port_interrupt_out()
823 struct usb_device *udev = port->serial->dev; in setup_port_interrupt_out()
849 struct usb_serial *serial = NULL; in usb_serial_probe() local
873 serial = create_serial(dev, interface, type); in usb_serial_probe()
874 if (!serial) { in usb_serial_probe()
884 retval = type->probe(serial, id); in usb_serial_probe()
899 find_endpoints(serial, epds); in usb_serial_probe()
911 retval = type->calc_num_ports(serial, epds); in usb_serial_probe()
925 serial->num_ports = (unsigned char)num_ports; in usb_serial_probe()
926 serial->num_bulk_in = epds->num_bulk_in; in usb_serial_probe()
927 serial->num_bulk_out = epds->num_bulk_out; in usb_serial_probe()
928 serial->num_interrupt_in = epds->num_interrupt_in; in usb_serial_probe()
929 serial->num_interrupt_out = epds->num_interrupt_out; in usb_serial_probe()
940 max_endpoints = max(max_endpoints, serial->num_ports); in usb_serial_probe()
941 serial->num_port_pointers = max_endpoints; in usb_serial_probe()
952 port->serial = serial; in usb_serial_probe()
957 serial->port[i] = port; in usb_serial_probe()
968 retval = setup_port_bulk_in(serial->port[i], epds->bulk_in[i]); in usb_serial_probe()
974 retval = setup_port_bulk_out(serial->port[i], in usb_serial_probe()
980 if (serial->type->read_int_callback) { in usb_serial_probe()
982 retval = setup_port_interrupt_in(serial->port[i], in usb_serial_probe()
991 if (serial->type->write_int_callback) { in usb_serial_probe()
993 retval = setup_port_interrupt_out(serial->port[i], in usb_serial_probe()
1002 usb_set_intfdata(interface, serial); in usb_serial_probe()
1006 retval = type->attach(serial); in usb_serial_probe()
1009 serial->attached = 1; in usb_serial_probe()
1012 serial port as it's about to disappear */ in usb_serial_probe()
1013 serial->num_ports = 0; in usb_serial_probe()
1017 serial->attached = 1; in usb_serial_probe()
1020 retval = allocate_minors(serial, num_ports); in usb_serial_probe()
1022 dev_err(ddev, "No more free serial minor numbers\n"); in usb_serial_probe()
1028 port = serial->port[i]; in usb_serial_probe()
1039 usb_serial_console_init(serial->port[0]->minor); in usb_serial_probe()
1048 usb_serial_put(serial); in usb_serial_probe()
1058 struct usb_serial *serial = usb_get_intfdata(interface); in usb_serial_disconnect() local
1063 usb_serial_console_disconnect(serial); in usb_serial_disconnect()
1065 mutex_lock(&serial->disc_mutex); in usb_serial_disconnect()
1067 serial->disconnected = 1; in usb_serial_disconnect()
1068 mutex_unlock(&serial->disc_mutex); in usb_serial_disconnect()
1070 for (i = 0; i < serial->num_ports; ++i) { in usb_serial_disconnect()
1071 port = serial->port[i]; in usb_serial_disconnect()
1083 if (serial->type->disconnect) in usb_serial_disconnect()
1084 serial->type->disconnect(serial); in usb_serial_disconnect()
1087 usb_serial_put(serial); in usb_serial_disconnect()
1093 struct usb_serial *serial = usb_get_intfdata(intf); in usb_serial_suspend() local
1096 serial->suspending = 1; in usb_serial_suspend()
1099 * serial->type->suspend() MUST return 0 in system sleep context, in usb_serial_suspend()
1103 if (serial->type->suspend) { in usb_serial_suspend()
1104 r = serial->type->suspend(serial, message); in usb_serial_suspend()
1106 serial->suspending = 0; in usb_serial_suspend()
1111 for (i = 0; i < serial->num_ports; ++i) in usb_serial_suspend()
1112 usb_serial_port_poison_urbs(serial->port[i]); in usb_serial_suspend()
1118 static void usb_serial_unpoison_port_urbs(struct usb_serial *serial) in usb_serial_unpoison_port_urbs() argument
1122 for (i = 0; i < serial->num_ports; ++i) in usb_serial_unpoison_port_urbs()
1123 usb_serial_port_unpoison_urbs(serial->port[i]); in usb_serial_unpoison_port_urbs()
1128 struct usb_serial *serial = usb_get_intfdata(intf); in usb_serial_resume() local
1131 usb_serial_unpoison_port_urbs(serial); in usb_serial_resume()
1133 serial->suspending = 0; in usb_serial_resume()
1134 if (serial->type->resume) in usb_serial_resume()
1135 rv = serial->type->resume(serial); in usb_serial_resume()
1137 rv = usb_serial_generic_resume(serial); in usb_serial_resume()
1145 struct usb_serial *serial = usb_get_intfdata(intf); in usb_serial_reset_resume() local
1148 usb_serial_unpoison_port_urbs(serial); in usb_serial_reset_resume()
1150 serial->suspending = 0; in usb_serial_reset_resume()
1151 if (serial->type->reset_resume) { in usb_serial_reset_resume()
1152 rv = serial->type->reset_resume(serial); in usb_serial_reset_resume()
1292 WARN(1, "Serial driver %s has no usb_driver\n", in usb_serial_register()
1311 pr_info("USB Serial support registered for %s\n", driver->description); in usb_serial_register()
1319 pr_info("USB Serial deregistering driver %s\n", device->description); in usb_serial_deregister()
1329 * usb_serial_register_drivers - register drivers for a usb-serial module
1346 * udriver must be registered before any of the serial drivers, in usb_serial_register_drivers()
1347 * because the store_new_id() routine for the serial drivers (in in usb_serial_register_drivers()
1351 * the serial drivers are registered, because the probe would in usb_serial_register_drivers()
1352 * simply fail for lack of a matching serial driver. in usb_serial_register_drivers()
1355 * Suspend/resume support is implemented in the usb-serial core, in usb_serial_register_drivers()
1405 * usb_serial_deregister_drivers - deregister drivers for a usb-serial module