Lines Matching full:serial
3 * USB Serial Converter driver
13 * See Documentation/usb/usb-serial.rst 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()
124 int usb_serial_claim_interface(struct usb_serial *serial, struct usb_interface *intf) in usb_serial_claim_interface() argument
126 struct usb_driver *driver = serial->type->usb_driver; in usb_serial_claim_interface()
129 if (serial->sibling) in usb_serial_claim_interface()
132 ret = usb_driver_claim_interface(driver, intf, serial); in usb_serial_claim_interface()
134 dev_err(&serial->interface->dev, in usb_serial_claim_interface()
139 serial->sibling = intf; in usb_serial_claim_interface()
145 static void release_sibling(struct usb_serial *serial, struct usb_interface *intf) in release_sibling() argument
147 struct usb_driver *driver = serial->type->usb_driver; in release_sibling()
150 if (!serial->sibling) in release_sibling()
153 if (intf == serial->sibling) in release_sibling()
154 sibling = serial->interface; in release_sibling()
156 sibling = serial->sibling; in release_sibling()
164 struct usb_serial *serial; in destroy_serial() local
168 serial = to_usb_serial(kref); in destroy_serial()
171 if (serial->minors_reserved) in destroy_serial()
172 release_minors(serial); in destroy_serial()
174 if (serial->attached && serial->type->release) in destroy_serial()
175 serial->type->release(serial); in destroy_serial()
178 for (i = 0; i < serial->num_port_pointers; ++i) { in destroy_serial()
179 port = serial->port[i]; in destroy_serial()
181 port->serial = NULL; in destroy_serial()
186 usb_put_intf(serial->interface); in destroy_serial()
187 usb_put_dev(serial->dev); in destroy_serial()
188 kfree(serial); in destroy_serial()
191 void usb_serial_put(struct usb_serial *serial) in usb_serial_put() argument
193 kref_put(&serial->kref, destroy_serial); in usb_serial_put()
206 * USB serial settings but permit them to be overridden by
207 * serial->type->init_termios on first open.
217 struct usb_serial *serial; in serial_install() local
226 serial = port->serial; in serial_install()
227 if (!try_module_get(serial->type->driver.owner)) in serial_install()
230 retval = usb_autopm_get_interface(serial->interface); in serial_install()
240 mutex_unlock(&serial->disc_mutex); in serial_install()
243 if (init_termios && serial->type->init_termios) in serial_install()
244 serial->type->init_termios(tty); in serial_install()
251 usb_autopm_put_interface(serial->interface); in serial_install()
253 module_put(serial->type->driver.owner); in serial_install()
255 usb_serial_put(serial); in serial_install()
256 mutex_unlock(&serial->disc_mutex); in serial_install()
264 struct usb_serial *serial = port->serial; in serial_port_activate() local
267 mutex_lock(&serial->disc_mutex); in serial_port_activate()
268 if (serial->disconnected) in serial_port_activate()
271 retval = port->serial->type->open(tty, port); in serial_port_activate()
272 mutex_unlock(&serial->disc_mutex); in serial_port_activate()
293 * Shut down a USB serial port. Serialized against activate by the
303 struct usb_serial_driver *drv = port->serial->type; in serial_port_shutdown()
339 struct usb_serial *serial; in serial_cleanup() local
352 serial = port->serial; in serial_cleanup()
353 owner = serial->type->driver.owner; in serial_cleanup()
355 usb_autopm_put_interface(serial->interface); in serial_cleanup()
357 usb_serial_put(serial); in serial_cleanup()
367 if (port->serial->dev->state == USB_STATE_NOTATTACHED) in serial_write()
372 retval = port->serial->type->write(tty, port, buf, count); in serial_write()
385 return port->serial->type->write_room(tty); in serial_write_room()
391 struct usb_serial *serial = port->serial; in serial_chars_in_buffer() local
395 if (serial->disconnected) in serial_chars_in_buffer()
398 return serial->type->chars_in_buffer(tty); in serial_chars_in_buffer()
404 struct usb_serial *serial = port->serial; in serial_wait_until_sent() local
408 if (!port->serial->type->wait_until_sent) in serial_wait_until_sent()
411 mutex_lock(&serial->disc_mutex); in serial_wait_until_sent()
412 if (!serial->disconnected) in serial_wait_until_sent()
413 port->serial->type->wait_until_sent(tty, timeout); in serial_wait_until_sent()
414 mutex_unlock(&serial->disc_mutex); in serial_wait_until_sent()
423 if (port->serial->type->throttle) in serial_throttle()
424 port->serial->type->throttle(tty); in serial_throttle()
433 if (port->serial->type->unthrottle) in serial_unthrottle()
434 port->serial->type->unthrottle(tty); in serial_unthrottle()
454 if (port->serial->type->get_serial) in serial_get_serial()
455 port->serial->type->get_serial(tty, ss); in serial_get_serial()
484 if (port->serial->type->set_serial) { in serial_set_serial()
485 ret = port->serial->type->set_serial(tty, ss); in serial_set_serial()
508 if (port->serial->type->tiocmiwait) in serial_ioctl()
509 retval = port->serial->type->tiocmiwait(tty, arg); in serial_ioctl()
512 if (port->serial->type->ioctl) in serial_ioctl()
513 retval = port->serial->type->ioctl(tty, cmd, arg); in serial_ioctl()
525 if (port->serial->type->set_termios) in serial_set_termios()
526 port->serial->type->set_termios(tty, port, old); in serial_set_termios()
537 if (port->serial->type->break_ctl) in serial_break()
538 port->serial->type->break_ctl(tty, break_state); in serial_break()
545 struct usb_serial *serial; in serial_proc_show() local
555 serial = port->serial; in serial_proc_show()
558 if (serial->type->driver.owner) in serial_proc_show()
560 module_name(serial->type->driver.owner)); in serial_proc_show()
562 serial->type->description); in serial_proc_show()
564 le16_to_cpu(serial->dev->descriptor.idVendor), in serial_proc_show()
565 le16_to_cpu(serial->dev->descriptor.idProduct)); in serial_proc_show()
566 seq_printf(m, " num_ports:%d", serial->num_ports); in serial_proc_show()
568 usb_make_path(serial->dev, tmp, sizeof(tmp)); in serial_proc_show()
572 usb_serial_put(serial); in serial_proc_show()
573 mutex_unlock(&serial->disc_mutex); in serial_proc_show()
584 if (port->serial->type->tiocmget) in serial_tiocmget()
585 return port->serial->type->tiocmget(tty); in serial_tiocmget()
596 if (port->serial->type->tiocmset) in serial_tiocmset()
597 return port->serial->type->tiocmset(tty, set, clear); in serial_tiocmset()
608 if (port->serial->type->get_icount) in serial_get_icount()
609 return port->serial->type->get_icount(tty, icount); in serial_get_icount()
686 struct usb_serial *serial; in create_serial() local
688 serial = kzalloc(sizeof(*serial), GFP_KERNEL); in create_serial()
689 if (!serial) in create_serial()
691 serial->dev = usb_get_dev(dev); in create_serial()
692 serial->type = driver; in create_serial()
693 serial->interface = usb_get_intf(interface); in create_serial()
694 kref_init(&serial->kref); in create_serial()
695 mutex_init(&serial->disc_mutex); in create_serial()
696 serial->minors_reserved = 0; in create_serial()
698 return serial; in create_serial()
756 struct usb_serial_driver *drv = p->serial->type; in serial_port_carrier_raised()
767 struct usb_serial_driver *drv = p->serial->type; in serial_port_dtr_rts()
795 static void store_endpoint(struct usb_serial *serial, in store_endpoint() argument
799 struct device *dev = &serial->interface->dev; in store_endpoint()
825 static void find_endpoints(struct usb_serial *serial, in find_endpoints() argument
836 store_endpoint(serial, epds, epd); in find_endpoints()
843 struct usb_serial_driver *type = port->serial->type; in setup_port_bulk_in()
844 struct usb_device *udev = port->serial->dev; in setup_port_bulk_in()
875 struct usb_serial_driver *type = port->serial->type; in setup_port_bulk_out()
876 struct usb_device *udev = port->serial->dev; in setup_port_bulk_out()
912 struct usb_serial_driver *type = port->serial->type; in setup_port_interrupt_in()
913 struct usb_device *udev = port->serial->dev; in setup_port_interrupt_in()
936 struct usb_serial_driver *type = port->serial->type; in setup_port_interrupt_out()
937 struct usb_device *udev = port->serial->dev; in setup_port_interrupt_out()
963 struct usb_serial *serial = NULL; in usb_serial_probe() local
987 serial = create_serial(dev, interface, type); in usb_serial_probe()
988 if (!serial) { in usb_serial_probe()
998 retval = type->probe(serial, id); in usb_serial_probe()
1013 find_endpoints(serial, epds, interface); in usb_serial_probe()
1014 if (serial->sibling) in usb_serial_probe()
1015 find_endpoints(serial, epds, serial->sibling); in usb_serial_probe()
1027 retval = type->calc_num_ports(serial, epds); in usb_serial_probe()
1041 serial->num_ports = (unsigned char)num_ports; in usb_serial_probe()
1042 serial->num_bulk_in = epds->num_bulk_in; in usb_serial_probe()
1043 serial->num_bulk_out = epds->num_bulk_out; in usb_serial_probe()
1044 serial->num_interrupt_in = epds->num_interrupt_in; in usb_serial_probe()
1045 serial->num_interrupt_out = epds->num_interrupt_out; in usb_serial_probe()
1056 max_endpoints = max(max_endpoints, serial->num_ports); in usb_serial_probe()
1057 serial->num_port_pointers = max_endpoints; in usb_serial_probe()
1068 port->serial = serial; in usb_serial_probe()
1073 serial->port[i] = port; in usb_serial_probe()
1084 retval = setup_port_bulk_in(serial->port[i], epds->bulk_in[i]); in usb_serial_probe()
1090 retval = setup_port_bulk_out(serial->port[i], in usb_serial_probe()
1096 if (serial->type->read_int_callback) { in usb_serial_probe()
1098 retval = setup_port_interrupt_in(serial->port[i], in usb_serial_probe()
1107 if (serial->type->write_int_callback) { in usb_serial_probe()
1109 retval = setup_port_interrupt_out(serial->port[i], in usb_serial_probe()
1118 usb_set_intfdata(interface, serial); in usb_serial_probe()
1122 retval = type->attach(serial); in usb_serial_probe()
1125 serial->attached = 1; in usb_serial_probe()
1128 serial port as it's about to disappear */ in usb_serial_probe()
1129 serial->num_ports = 0; in usb_serial_probe()
1133 serial->attached = 1; in usb_serial_probe()
1136 retval = allocate_minors(serial, num_ports); in usb_serial_probe()
1138 dev_err(ddev, "No more free serial minor numbers\n"); in usb_serial_probe()
1144 port = serial->port[i]; in usb_serial_probe()
1155 usb_serial_console_init(serial->port[0]->minor); in usb_serial_probe()
1164 release_sibling(serial, interface); in usb_serial_probe()
1165 usb_serial_put(serial); in usb_serial_probe()
1175 struct usb_serial *serial = usb_get_intfdata(interface); in usb_serial_disconnect() local
1181 if (!serial) in usb_serial_disconnect()
1184 usb_serial_console_disconnect(serial); in usb_serial_disconnect()
1186 mutex_lock(&serial->disc_mutex); in usb_serial_disconnect()
1188 serial->disconnected = 1; in usb_serial_disconnect()
1189 mutex_unlock(&serial->disc_mutex); in usb_serial_disconnect()
1191 for (i = 0; i < serial->num_ports; ++i) { in usb_serial_disconnect()
1192 port = serial->port[i]; in usb_serial_disconnect()
1204 if (serial->type->disconnect) in usb_serial_disconnect()
1205 serial->type->disconnect(serial); in usb_serial_disconnect()
1207 release_sibling(serial, interface); in usb_serial_disconnect()
1210 usb_serial_put(serial); in usb_serial_disconnect()
1216 struct usb_serial *serial = usb_get_intfdata(intf); in usb_serial_suspend() local
1220 if (serial->suspend_count++) in usb_serial_suspend()
1224 * serial->type->suspend() MUST return 0 in system sleep context, in usb_serial_suspend()
1228 if (serial->type->suspend) { in usb_serial_suspend()
1229 r = serial->type->suspend(serial, message); in usb_serial_suspend()
1231 serial->suspend_count--; in usb_serial_suspend()
1236 for (i = 0; i < serial->num_ports; ++i) in usb_serial_suspend()
1237 usb_serial_port_poison_urbs(serial->port[i]); in usb_serial_suspend()
1243 static void usb_serial_unpoison_port_urbs(struct usb_serial *serial) in usb_serial_unpoison_port_urbs() argument
1247 for (i = 0; i < serial->num_ports; ++i) in usb_serial_unpoison_port_urbs()
1248 usb_serial_port_unpoison_urbs(serial->port[i]); in usb_serial_unpoison_port_urbs()
1253 struct usb_serial *serial = usb_get_intfdata(intf); in usb_serial_resume() local
1257 if (--serial->suspend_count) in usb_serial_resume()
1260 usb_serial_unpoison_port_urbs(serial); in usb_serial_resume()
1262 if (serial->type->resume) in usb_serial_resume()
1263 rv = serial->type->resume(serial); in usb_serial_resume()
1265 rv = usb_serial_generic_resume(serial); in usb_serial_resume()
1273 struct usb_serial *serial = usb_get_intfdata(intf); in usb_serial_reset_resume() local
1277 if (--serial->suspend_count) in usb_serial_reset_resume()
1280 usb_serial_unpoison_port_urbs(serial); in usb_serial_reset_resume()
1282 if (serial->type->reset_resume) { in usb_serial_reset_resume()
1283 rv = serial->type->reset_resume(serial); in usb_serial_reset_resume()
1424 WARN(1, "Serial driver %s has no usb_driver\n", in usb_serial_register()
1443 pr_info("USB Serial support registered for %s\n", driver->description); in usb_serial_register()
1451 pr_info("USB Serial deregistering driver %s\n", device->description); in usb_serial_deregister()
1461 * usb_serial_register_drivers - register drivers for a usb-serial module
1478 * udriver must be registered before any of the serial drivers, in usb_serial_register_drivers()
1479 * because the store_new_id() routine for the serial drivers (in in usb_serial_register_drivers()
1483 * the serial drivers are registered, because the probe would in usb_serial_register_drivers()
1484 * simply fail for lack of a matching serial driver. in usb_serial_register_drivers()
1487 * Suspend/resume support is implemented in the usb-serial core, in usb_serial_register_drivers()
1537 * usb_serial_deregister_drivers - deregister drivers for a usb-serial module