Lines Matching refs:driver
255 if (!tty || !tty->driver) in tty_driver_name()
257 return tty->driver->name; in tty_driver_name()
290 if (tty->driver->type == TTY_DRIVER_TYPE_PTY && in check_tty_count()
291 tty->driver->subtype == PTY_TYPE_SLAVE && in check_tty_count()
1201 static void pty_line_name(struct tty_driver *driver, int index, char *p) in pty_line_name() argument
1204 int i = index + driver->name_base; in pty_line_name()
1207 driver->subtype == PTY_TYPE_SLAVE ? "tty" : driver->name, in pty_line_name()
1222 static ssize_t tty_line_name(struct tty_driver *driver, int index, char *p) in tty_line_name() argument
1224 if (driver->flags & TTY_DRIVER_UNNUMBERED_NODE) in tty_line_name()
1225 return sprintf(p, "%s", driver->name); in tty_line_name()
1227 return sprintf(p, "%s%d", driver->name, in tty_line_name()
1228 index + driver->name_base); in tty_line_name()
1242 static struct tty_struct *tty_driver_lookup_tty(struct tty_driver *driver, in tty_driver_lookup_tty() argument
1247 if (driver->ops->lookup) in tty_driver_lookup_tty()
1251 tty = driver->ops->lookup(driver, file, idx); in tty_driver_lookup_tty()
1253 tty = driver->ttys[idx]; in tty_driver_lookup_tty()
1273 if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) in tty_init_termios()
1274 tty->termios = tty->driver->init_termios; in tty_init_termios()
1277 tp = tty->driver->termios[idx]; in tty_init_termios()
1280 tty->termios.c_line = tty->driver->init_termios.c_line; in tty_init_termios()
1282 tty->termios = tty->driver->init_termios; in tty_init_termios()
1290 int tty_standard_install(struct tty_driver *driver, struct tty_struct *tty) in tty_standard_install() argument
1293 tty_driver_kref_get(driver); in tty_standard_install()
1295 driver->ttys[tty->index] = tty; in tty_standard_install()
1312 static int tty_driver_install_tty(struct tty_driver *driver, in tty_driver_install_tty() argument
1315 return driver->ops->install ? driver->ops->install(driver, tty) : in tty_driver_install_tty()
1316 tty_standard_install(driver, tty); in tty_driver_install_tty()
1329 static void tty_driver_remove_tty(struct tty_driver *driver, struct tty_struct *tty) in tty_driver_remove_tty() argument
1331 if (driver->ops->remove) in tty_driver_remove_tty()
1332 driver->ops->remove(driver, tty); in tty_driver_remove_tty()
1334 driver->ttys[tty->index] = NULL; in tty_driver_remove_tty()
1348 struct tty_driver *driver = tty->driver; in tty_reopen() local
1352 if (driver->type == TTY_DRIVER_TYPE_PTY && in tty_reopen()
1353 driver->subtype == PTY_TYPE_MASTER) in tty_reopen()
1406 struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx) in tty_init_dev() argument
1419 if (!try_module_get(driver->owner)) in tty_init_dev()
1422 tty = alloc_tty_struct(driver, idx); in tty_init_dev()
1429 retval = tty_driver_install_tty(driver, tty); in tty_init_dev()
1434 tty->port = driver->ports[idx]; in tty_init_dev()
1438 __func__, tty->driver->name)) { in tty_init_dev()
1464 module_put(driver->owner); in tty_init_dev()
1490 if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) in tty_save_termios()
1494 tp = tty->driver->termios[idx]; in tty_save_termios()
1499 tty->driver->termios[idx] = tp; in tty_save_termios()
1540 struct tty_driver *driver = tty->driver; in release_one_tty() local
1541 struct module *owner = driver->owner; in release_one_tty()
1547 tty_driver_kref_put(driver); in release_one_tty()
1607 tty_driver_remove_tty(tty->driver, tty); in release_tty()
1632 if (idx < 0 || idx >= tty->driver->num) { in tty_release_checks()
1638 if (tty->driver->flags & TTY_DRIVER_DEVPTS_MEM) in tty_release_checks()
1641 if (tty != tty->driver->ttys[idx]) { in tty_release_checks()
1643 idx, tty->driver->ttys[idx]); in tty_release_checks()
1646 if (tty->driver->other) { in tty_release_checks()
1649 if (o_tty != tty->driver->other->ttys[idx]) { in tty_release_checks()
1651 idx, tty->driver->other->ttys[idx]); in tty_release_checks()
1759 if (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_release()
1760 tty->driver->subtype == PTY_TYPE_MASTER) in tty_release()
1933 struct tty_driver *driver = NULL; in tty_lookup_driver() local
1940 driver = tty_driver_kref_get(console_driver); in tty_lookup_driver()
1949 driver = tty_driver_kref_get(console_driver); in tty_lookup_driver()
1950 if (driver && filp) { in tty_lookup_driver()
1956 if (driver) in tty_lookup_driver()
1957 tty_driver_kref_put(driver); in tty_lookup_driver()
1961 driver = get_tty_driver(device, index); in tty_lookup_driver()
1962 if (!driver) in tty_lookup_driver()
1966 return driver; in tty_lookup_driver()
1972 struct tty_driver *driver; in tty_kopen() local
1976 driver = tty_lookup_driver(device, NULL, &index); in tty_kopen()
1977 if (IS_ERR(driver)) { in tty_kopen()
1979 return ERR_CAST(driver); in tty_kopen()
1983 tty = tty_driver_lookup_tty(driver, NULL, index); in tty_kopen()
1992 tty = tty_init_dev(driver, index); in tty_kopen()
1999 tty_driver_kref_put(driver); in tty_kopen()
2058 struct tty_driver *driver = NULL; in tty_open_by_driver() local
2063 driver = tty_lookup_driver(device, filp, &index); in tty_open_by_driver()
2064 if (IS_ERR(driver)) { in tty_open_by_driver()
2066 return ERR_CAST(driver); in tty_open_by_driver()
2070 tty = tty_driver_lookup_tty(driver, filp, index); in tty_open_by_driver()
2098 tty = tty_init_dev(driver, index); in tty_open_by_driver()
2102 tty_driver_kref_put(driver); in tty_open_by_driver()
2192 (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_open()
2193 tty->driver->subtype == PTY_TYPE_MASTER); in tty_open()
2504 if (tty->driver->flags & TTY_DRIVER_HARDWARE_BREAK) in send_break()
2672 if (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_pair_get_tty()
2673 tty->driver->subtype == PTY_TYPE_MASTER) in tty_pair_get_tty()
3118 struct tty_struct *alloc_tty_struct(struct tty_driver *driver, int idx) in alloc_tty_struct() argument
3149 tty->driver = driver; in alloc_tty_struct()
3150 tty->ops = driver->ops; in alloc_tty_struct()
3152 tty_line_name(driver, idx, tty->name); in alloc_tty_struct()
3180 static int tty_cdev_add(struct tty_driver *driver, dev_t dev, in tty_cdev_add() argument
3186 driver->cdevs[index] = cdev_alloc(); in tty_cdev_add()
3187 if (!driver->cdevs[index]) in tty_cdev_add()
3189 driver->cdevs[index]->ops = &tty_fops; in tty_cdev_add()
3190 driver->cdevs[index]->owner = driver->owner; in tty_cdev_add()
3191 err = cdev_add(driver->cdevs[index], dev, count); in tty_cdev_add()
3193 kobject_put(&driver->cdevs[index]->kobj); in tty_cdev_add()
3216 struct device *tty_register_device(struct tty_driver *driver, unsigned index, in tty_register_device() argument
3219 return tty_register_device_attr(driver, index, device, NULL, NULL); in tty_register_device()
3249 struct device *tty_register_device_attr(struct tty_driver *driver, in tty_register_device_attr() argument
3255 dev_t devt = MKDEV(driver->major, driver->minor_start) + index; in tty_register_device_attr()
3260 if (index >= driver->num) { in tty_register_device_attr()
3262 driver->name, index); in tty_register_device_attr()
3266 if (driver->type == TTY_DRIVER_TYPE_PTY) in tty_register_device_attr()
3267 pty_line_name(driver, index, name); in tty_register_device_attr()
3269 tty_line_name(driver, index, name); in tty_register_device_attr()
3289 if (!(driver->flags & TTY_DRIVER_DYNAMIC_ALLOC)) { in tty_register_device_attr()
3294 tp = driver->termios[index]; in tty_register_device_attr()
3296 driver->termios[index] = NULL; in tty_register_device_attr()
3300 retval = tty_cdev_add(driver, devt, index, 1); in tty_register_device_attr()
3330 void tty_unregister_device(struct tty_driver *driver, unsigned index) in tty_unregister_device() argument
3333 MKDEV(driver->major, driver->minor_start) + index); in tty_unregister_device()
3334 if (!(driver->flags & TTY_DRIVER_DYNAMIC_ALLOC)) { in tty_unregister_device()
3335 cdev_del(driver->cdevs[index]); in tty_unregister_device()
3336 driver->cdevs[index] = NULL; in tty_unregister_device()
3353 struct tty_driver *driver; in __tty_alloc_driver() local
3360 driver = kzalloc(sizeof(*driver), GFP_KERNEL); in __tty_alloc_driver()
3361 if (!driver) in __tty_alloc_driver()
3364 kref_init(&driver->kref); in __tty_alloc_driver()
3365 driver->magic = TTY_DRIVER_MAGIC; in __tty_alloc_driver()
3366 driver->num = lines; in __tty_alloc_driver()
3367 driver->owner = owner; in __tty_alloc_driver()
3368 driver->flags = flags; in __tty_alloc_driver()
3371 driver->ttys = kcalloc(lines, sizeof(*driver->ttys), in __tty_alloc_driver()
3373 driver->termios = kcalloc(lines, sizeof(*driver->termios), in __tty_alloc_driver()
3375 if (!driver->ttys || !driver->termios) { in __tty_alloc_driver()
3382 driver->ports = kcalloc(lines, sizeof(*driver->ports), in __tty_alloc_driver()
3384 if (!driver->ports) { in __tty_alloc_driver()
3391 driver->cdevs = kcalloc(cdevs, sizeof(*driver->cdevs), GFP_KERNEL); in __tty_alloc_driver()
3392 if (!driver->cdevs) { in __tty_alloc_driver()
3397 return driver; in __tty_alloc_driver()
3399 kfree(driver->ports); in __tty_alloc_driver()
3400 kfree(driver->ttys); in __tty_alloc_driver()
3401 kfree(driver->termios); in __tty_alloc_driver()
3402 kfree(driver->cdevs); in __tty_alloc_driver()
3403 kfree(driver); in __tty_alloc_driver()
3410 struct tty_driver *driver = container_of(kref, struct tty_driver, kref); in destruct_tty_driver() local
3414 if (driver->flags & TTY_DRIVER_INSTALLED) { in destruct_tty_driver()
3415 for (i = 0; i < driver->num; i++) { in destruct_tty_driver()
3416 tp = driver->termios[i]; in destruct_tty_driver()
3418 driver->termios[i] = NULL; in destruct_tty_driver()
3421 if (!(driver->flags & TTY_DRIVER_DYNAMIC_DEV)) in destruct_tty_driver()
3422 tty_unregister_device(driver, i); in destruct_tty_driver()
3424 proc_tty_unregister_driver(driver); in destruct_tty_driver()
3425 if (driver->flags & TTY_DRIVER_DYNAMIC_ALLOC) in destruct_tty_driver()
3426 cdev_del(driver->cdevs[0]); in destruct_tty_driver()
3428 kfree(driver->cdevs); in destruct_tty_driver()
3429 kfree(driver->ports); in destruct_tty_driver()
3430 kfree(driver->termios); in destruct_tty_driver()
3431 kfree(driver->ttys); in destruct_tty_driver()
3432 kfree(driver); in destruct_tty_driver()
3435 void tty_driver_kref_put(struct tty_driver *driver) in tty_driver_kref_put() argument
3437 kref_put(&driver->kref, destruct_tty_driver); in tty_driver_kref_put()
3444 int tty_register_driver(struct tty_driver *driver) in tty_register_driver() argument
3451 if (!driver->major) { in tty_register_driver()
3452 error = alloc_chrdev_region(&dev, driver->minor_start, in tty_register_driver()
3453 driver->num, driver->name); in tty_register_driver()
3455 driver->major = MAJOR(dev); in tty_register_driver()
3456 driver->minor_start = MINOR(dev); in tty_register_driver()
3459 dev = MKDEV(driver->major, driver->minor_start); in tty_register_driver()
3460 error = register_chrdev_region(dev, driver->num, driver->name); in tty_register_driver()
3465 if (driver->flags & TTY_DRIVER_DYNAMIC_ALLOC) { in tty_register_driver()
3466 error = tty_cdev_add(driver, dev, 0, driver->num); in tty_register_driver()
3472 list_add(&driver->tty_drivers, &tty_drivers); in tty_register_driver()
3475 if (!(driver->flags & TTY_DRIVER_DYNAMIC_DEV)) { in tty_register_driver()
3476 for (i = 0; i < driver->num; i++) { in tty_register_driver()
3477 d = tty_register_device(driver, i, NULL); in tty_register_driver()
3484 proc_tty_register_driver(driver); in tty_register_driver()
3485 driver->flags |= TTY_DRIVER_INSTALLED; in tty_register_driver()
3490 tty_unregister_device(driver, i); in tty_register_driver()
3493 list_del(&driver->tty_drivers); in tty_register_driver()
3497 unregister_chrdev_region(dev, driver->num); in tty_register_driver()
3506 void tty_unregister_driver(struct tty_driver *driver) in tty_unregister_driver() argument
3508 unregister_chrdev_region(MKDEV(driver->major, driver->minor_start), in tty_unregister_driver()
3509 driver->num); in tty_unregister_driver()
3511 list_del(&driver->tty_drivers); in tty_unregister_driver()
3518 return MKDEV(tty->driver->major, tty->driver->minor_start) + tty->index; in tty_devnum()