Lines Matching refs:driver
254 if (!tty || !tty->driver) in tty_driver_name()
256 return tty->driver->name; in tty_driver_name()
284 if (tty->driver->type == TTY_DRIVER_TYPE_PTY && in check_tty_count()
285 tty->driver->subtype == PTY_TYPE_SLAVE && in check_tty_count()
1182 static void pty_line_name(struct tty_driver *driver, int index, char *p) in pty_line_name() argument
1185 int i = index + driver->name_base; in pty_line_name()
1188 driver->subtype == PTY_TYPE_SLAVE ? "tty" : driver->name, in pty_line_name()
1203 static ssize_t tty_line_name(struct tty_driver *driver, int index, char *p) in tty_line_name() argument
1205 if (driver->flags & TTY_DRIVER_UNNUMBERED_NODE) in tty_line_name()
1206 return sprintf(p, "%s", driver->name); in tty_line_name()
1208 return sprintf(p, "%s%d", driver->name, in tty_line_name()
1209 index + driver->name_base); in tty_line_name()
1223 static struct tty_struct *tty_driver_lookup_tty(struct tty_driver *driver, in tty_driver_lookup_tty() argument
1228 if (driver->ops->lookup) { in tty_driver_lookup_tty()
1232 tty = driver->ops->lookup(driver, file, idx); in tty_driver_lookup_tty()
1234 if (idx >= driver->num) in tty_driver_lookup_tty()
1236 tty = driver->ttys[idx]; in tty_driver_lookup_tty()
1255 if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) in tty_init_termios()
1256 tty->termios = tty->driver->init_termios; in tty_init_termios()
1259 tp = tty->driver->termios[idx]; in tty_init_termios()
1262 tty->termios.c_line = tty->driver->init_termios.c_line; in tty_init_termios()
1264 tty->termios = tty->driver->init_termios; in tty_init_termios()
1280 int tty_standard_install(struct tty_driver *driver, struct tty_struct *tty) in tty_standard_install() argument
1283 tty_driver_kref_get(driver); in tty_standard_install()
1285 driver->ttys[tty->index] = tty; in tty_standard_install()
1301 static int tty_driver_install_tty(struct tty_driver *driver, in tty_driver_install_tty() argument
1304 return driver->ops->install ? driver->ops->install(driver, tty) : in tty_driver_install_tty()
1305 tty_standard_install(driver, tty); in tty_driver_install_tty()
1318 static void tty_driver_remove_tty(struct tty_driver *driver, struct tty_struct *tty) in tty_driver_remove_tty() argument
1320 if (driver->ops->remove) in tty_driver_remove_tty()
1321 driver->ops->remove(driver, tty); in tty_driver_remove_tty()
1323 driver->ttys[tty->index] = NULL; in tty_driver_remove_tty()
1337 struct tty_driver *driver = tty->driver; in tty_reopen() local
1341 if (driver->type == TTY_DRIVER_TYPE_PTY && in tty_reopen()
1342 driver->subtype == PTY_TYPE_MASTER) in tty_reopen()
1393 struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx) in tty_init_dev() argument
1406 if (!try_module_get(driver->owner)) in tty_init_dev()
1409 tty = alloc_tty_struct(driver, idx); in tty_init_dev()
1416 retval = tty_driver_install_tty(driver, tty); in tty_init_dev()
1421 tty->port = driver->ports[idx]; in tty_init_dev()
1425 __func__, tty->driver->name)) { in tty_init_dev()
1451 module_put(driver->owner); in tty_init_dev()
1477 if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) in tty_save_termios()
1481 tp = tty->driver->termios[idx]; in tty_save_termios()
1486 tty->driver->termios[idx] = tp; in tty_save_termios()
1527 struct tty_driver *driver = tty->driver; in release_one_tty() local
1528 struct module *owner = driver->owner; in release_one_tty()
1533 tty_driver_kref_put(driver); in release_one_tty()
1591 tty_driver_remove_tty(tty->driver, tty); in release_tty()
1616 if (idx < 0 || idx >= tty->driver->num) { in tty_release_checks()
1622 if (tty->driver->flags & TTY_DRIVER_DEVPTS_MEM) in tty_release_checks()
1625 if (tty != tty->driver->ttys[idx]) { in tty_release_checks()
1627 idx, tty->driver->ttys[idx]); in tty_release_checks()
1630 if (tty->driver->other) { in tty_release_checks()
1633 if (o_tty != tty->driver->other->ttys[idx]) { in tty_release_checks()
1635 idx, tty->driver->other->ttys[idx]); in tty_release_checks()
1742 if (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_release()
1743 tty->driver->subtype == PTY_TYPE_MASTER) in tty_release()
1917 struct tty_driver *driver = NULL; in tty_lookup_driver() local
1924 driver = tty_driver_kref_get(console_driver); in tty_lookup_driver()
1933 driver = tty_driver_kref_get(console_driver); in tty_lookup_driver()
1934 if (driver && filp) { in tty_lookup_driver()
1940 if (driver) in tty_lookup_driver()
1941 tty_driver_kref_put(driver); in tty_lookup_driver()
1945 driver = get_tty_driver(device, index); in tty_lookup_driver()
1946 if (!driver) in tty_lookup_driver()
1950 return driver; in tty_lookup_driver()
1956 struct tty_driver *driver; in tty_kopen() local
1960 driver = tty_lookup_driver(device, NULL, &index); in tty_kopen()
1961 if (IS_ERR(driver)) { in tty_kopen()
1963 return ERR_CAST(driver); in tty_kopen()
1967 tty = tty_driver_lookup_tty(driver, NULL, index); in tty_kopen()
1976 tty = tty_init_dev(driver, index); in tty_kopen()
1983 tty_driver_kref_put(driver); in tty_kopen()
2042 struct tty_driver *driver = NULL; in tty_open_by_driver() local
2047 driver = tty_lookup_driver(device, filp, &index); in tty_open_by_driver()
2048 if (IS_ERR(driver)) { in tty_open_by_driver()
2050 return ERR_CAST(driver); in tty_open_by_driver()
2054 tty = tty_driver_lookup_tty(driver, filp, index); in tty_open_by_driver()
2082 tty = tty_init_dev(driver, index); in tty_open_by_driver()
2086 tty_driver_kref_put(driver); in tty_open_by_driver()
2175 (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_open()
2176 tty->driver->subtype == PTY_TYPE_MASTER); in tty_open()
2485 if (tty->driver->flags & TTY_DRIVER_HARDWARE_BREAK) in send_break()
2670 if (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_pair_get_tty()
2671 tty->driver->subtype == PTY_TYPE_MASTER) in tty_pair_get_tty()
3112 struct tty_struct *alloc_tty_struct(struct tty_driver *driver, int idx) in alloc_tty_struct() argument
3142 tty->driver = driver; in alloc_tty_struct()
3143 tty->ops = driver->ops; in alloc_tty_struct()
3145 tty_line_name(driver, idx, tty->name); in alloc_tty_struct()
3172 static int tty_cdev_add(struct tty_driver *driver, dev_t dev, in tty_cdev_add() argument
3178 driver->cdevs[index] = cdev_alloc(); in tty_cdev_add()
3179 if (!driver->cdevs[index]) in tty_cdev_add()
3181 driver->cdevs[index]->ops = &tty_fops; in tty_cdev_add()
3182 driver->cdevs[index]->owner = driver->owner; in tty_cdev_add()
3183 err = cdev_add(driver->cdevs[index], dev, count); in tty_cdev_add()
3185 kobject_put(&driver->cdevs[index]->kobj); in tty_cdev_add()
3207 struct device *tty_register_device(struct tty_driver *driver, unsigned index, in tty_register_device() argument
3210 return tty_register_device_attr(driver, index, device, NULL, NULL); in tty_register_device()
3239 struct device *tty_register_device_attr(struct tty_driver *driver, in tty_register_device_attr() argument
3245 dev_t devt = MKDEV(driver->major, driver->minor_start) + index; in tty_register_device_attr()
3250 if (index >= driver->num) { in tty_register_device_attr()
3252 driver->name, index); in tty_register_device_attr()
3256 if (driver->type == TTY_DRIVER_TYPE_PTY) in tty_register_device_attr()
3257 pty_line_name(driver, index, name); in tty_register_device_attr()
3259 tty_line_name(driver, index, name); in tty_register_device_attr()
3279 if (!(driver->flags & TTY_DRIVER_DYNAMIC_ALLOC)) { in tty_register_device_attr()
3284 tp = driver->termios[index]; in tty_register_device_attr()
3286 driver->termios[index] = NULL; in tty_register_device_attr()
3290 retval = tty_cdev_add(driver, devt, index, 1); in tty_register_device_attr()
3319 void tty_unregister_device(struct tty_driver *driver, unsigned index) in tty_unregister_device() argument
3321 device_destroy(&tty_class, MKDEV(driver->major, driver->minor_start) + index); in tty_unregister_device()
3322 if (!(driver->flags & TTY_DRIVER_DYNAMIC_ALLOC)) { in tty_unregister_device()
3323 cdev_del(driver->cdevs[index]); in tty_unregister_device()
3324 driver->cdevs[index] = NULL; in tty_unregister_device()
3341 struct tty_driver *driver; in __tty_alloc_driver() local
3348 driver = kzalloc(sizeof(*driver), GFP_KERNEL); in __tty_alloc_driver()
3349 if (!driver) in __tty_alloc_driver()
3352 kref_init(&driver->kref); in __tty_alloc_driver()
3353 driver->num = lines; in __tty_alloc_driver()
3354 driver->owner = owner; in __tty_alloc_driver()
3355 driver->flags = flags; in __tty_alloc_driver()
3358 driver->ttys = kcalloc(lines, sizeof(*driver->ttys), in __tty_alloc_driver()
3360 driver->termios = kcalloc(lines, sizeof(*driver->termios), in __tty_alloc_driver()
3362 if (!driver->ttys || !driver->termios) { in __tty_alloc_driver()
3369 driver->ports = kcalloc(lines, sizeof(*driver->ports), in __tty_alloc_driver()
3371 if (!driver->ports) { in __tty_alloc_driver()
3378 driver->cdevs = kcalloc(cdevs, sizeof(*driver->cdevs), GFP_KERNEL); in __tty_alloc_driver()
3379 if (!driver->cdevs) { in __tty_alloc_driver()
3384 return driver; in __tty_alloc_driver()
3386 kfree(driver->ports); in __tty_alloc_driver()
3387 kfree(driver->ttys); in __tty_alloc_driver()
3388 kfree(driver->termios); in __tty_alloc_driver()
3389 kfree(driver->cdevs); in __tty_alloc_driver()
3390 kfree(driver); in __tty_alloc_driver()
3397 struct tty_driver *driver = container_of(kref, struct tty_driver, kref); in destruct_tty_driver() local
3401 if (driver->flags & TTY_DRIVER_INSTALLED) { in destruct_tty_driver()
3402 for (i = 0; i < driver->num; i++) { in destruct_tty_driver()
3403 tp = driver->termios[i]; in destruct_tty_driver()
3405 driver->termios[i] = NULL; in destruct_tty_driver()
3408 if (!(driver->flags & TTY_DRIVER_DYNAMIC_DEV)) in destruct_tty_driver()
3409 tty_unregister_device(driver, i); in destruct_tty_driver()
3411 proc_tty_unregister_driver(driver); in destruct_tty_driver()
3412 if (driver->flags & TTY_DRIVER_DYNAMIC_ALLOC) in destruct_tty_driver()
3413 cdev_del(driver->cdevs[0]); in destruct_tty_driver()
3415 kfree(driver->cdevs); in destruct_tty_driver()
3416 kfree(driver->ports); in destruct_tty_driver()
3417 kfree(driver->termios); in destruct_tty_driver()
3418 kfree(driver->ttys); in destruct_tty_driver()
3419 kfree(driver); in destruct_tty_driver()
3428 void tty_driver_kref_put(struct tty_driver *driver) in tty_driver_kref_put() argument
3430 kref_put(&driver->kref, destruct_tty_driver); in tty_driver_kref_put()
3440 int tty_register_driver(struct tty_driver *driver) in tty_register_driver() argument
3447 if (!driver->major) { in tty_register_driver()
3448 error = alloc_chrdev_region(&dev, driver->minor_start, in tty_register_driver()
3449 driver->num, driver->name); in tty_register_driver()
3451 driver->major = MAJOR(dev); in tty_register_driver()
3452 driver->minor_start = MINOR(dev); in tty_register_driver()
3455 dev = MKDEV(driver->major, driver->minor_start); in tty_register_driver()
3456 error = register_chrdev_region(dev, driver->num, driver->name); in tty_register_driver()
3461 if (driver->flags & TTY_DRIVER_DYNAMIC_ALLOC) { in tty_register_driver()
3462 error = tty_cdev_add(driver, dev, 0, driver->num); in tty_register_driver()
3468 list_add(&driver->tty_drivers, &tty_drivers); in tty_register_driver()
3471 if (!(driver->flags & TTY_DRIVER_DYNAMIC_DEV)) { in tty_register_driver()
3472 for (i = 0; i < driver->num; i++) { in tty_register_driver()
3473 d = tty_register_device(driver, i, NULL); in tty_register_driver()
3480 proc_tty_register_driver(driver); in tty_register_driver()
3481 driver->flags |= TTY_DRIVER_INSTALLED; in tty_register_driver()
3486 tty_unregister_device(driver, i); in tty_register_driver()
3489 list_del(&driver->tty_drivers); in tty_register_driver()
3493 unregister_chrdev_region(dev, driver->num); in tty_register_driver()
3505 void tty_unregister_driver(struct tty_driver *driver) in tty_unregister_driver() argument
3507 unregister_chrdev_region(MKDEV(driver->major, driver->minor_start), in tty_unregister_driver()
3508 driver->num); in tty_unregister_driver()
3510 list_del(&driver->tty_drivers); in tty_unregister_driver()
3517 return MKDEV(tty->driver->major, tty->driver->minor_start) + tty->index; in tty_devnum()