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()
1180 static void pty_line_name(struct tty_driver *driver, int index, char *p) in pty_line_name() argument
1183 int i = index + driver->name_base; in pty_line_name()
1186 driver->subtype == PTY_TYPE_SLAVE ? "tty" : driver->name, in pty_line_name()
1201 static ssize_t tty_line_name(struct tty_driver *driver, int index, char *p) in tty_line_name() argument
1203 if (driver->flags & TTY_DRIVER_UNNUMBERED_NODE) in tty_line_name()
1204 return sprintf(p, "%s", driver->name); in tty_line_name()
1206 return sprintf(p, "%s%d", driver->name, in tty_line_name()
1207 index + driver->name_base); in tty_line_name()
1221 static struct tty_struct *tty_driver_lookup_tty(struct tty_driver *driver, in tty_driver_lookup_tty() argument
1226 if (driver->ops->lookup) { in tty_driver_lookup_tty()
1230 tty = driver->ops->lookup(driver, file, idx); in tty_driver_lookup_tty()
1232 if (idx >= driver->num) in tty_driver_lookup_tty()
1234 tty = driver->ttys[idx]; in tty_driver_lookup_tty()
1253 if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) in tty_init_termios()
1254 tty->termios = tty->driver->init_termios; in tty_init_termios()
1257 tp = tty->driver->termios[idx]; in tty_init_termios()
1260 tty->termios.c_line = tty->driver->init_termios.c_line; in tty_init_termios()
1262 tty->termios = tty->driver->init_termios; in tty_init_termios()
1278 int tty_standard_install(struct tty_driver *driver, struct tty_struct *tty) in tty_standard_install() argument
1281 tty_driver_kref_get(driver); in tty_standard_install()
1283 driver->ttys[tty->index] = tty; in tty_standard_install()
1299 static int tty_driver_install_tty(struct tty_driver *driver, in tty_driver_install_tty() argument
1302 return driver->ops->install ? driver->ops->install(driver, tty) : in tty_driver_install_tty()
1303 tty_standard_install(driver, tty); in tty_driver_install_tty()
1316 static void tty_driver_remove_tty(struct tty_driver *driver, struct tty_struct *tty) in tty_driver_remove_tty() argument
1318 if (driver->ops->remove) in tty_driver_remove_tty()
1319 driver->ops->remove(driver, tty); in tty_driver_remove_tty()
1321 driver->ttys[tty->index] = NULL; in tty_driver_remove_tty()
1335 struct tty_driver *driver = tty->driver; in tty_reopen() local
1339 if (driver->type == TTY_DRIVER_TYPE_PTY && in tty_reopen()
1340 driver->subtype == PTY_TYPE_MASTER) in tty_reopen()
1391 struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx) in tty_init_dev() argument
1404 if (!try_module_get(driver->owner)) in tty_init_dev()
1407 tty = alloc_tty_struct(driver, idx); in tty_init_dev()
1414 retval = tty_driver_install_tty(driver, tty); in tty_init_dev()
1419 tty->port = driver->ports[idx]; in tty_init_dev()
1423 __func__, tty->driver->name)) { in tty_init_dev()
1449 module_put(driver->owner); in tty_init_dev()
1475 if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) in tty_save_termios()
1479 tp = tty->driver->termios[idx]; in tty_save_termios()
1484 tty->driver->termios[idx] = tp; in tty_save_termios()
1525 struct tty_driver *driver = tty->driver; in release_one_tty() local
1526 struct module *owner = driver->owner; in release_one_tty()
1531 tty_driver_kref_put(driver); in release_one_tty()
1589 tty_driver_remove_tty(tty->driver, tty); in release_tty()
1614 if (idx < 0 || idx >= tty->driver->num) { in tty_release_checks()
1620 if (tty->driver->flags & TTY_DRIVER_DEVPTS_MEM) in tty_release_checks()
1623 if (tty != tty->driver->ttys[idx]) { in tty_release_checks()
1625 idx, tty->driver->ttys[idx]); in tty_release_checks()
1628 if (tty->driver->other) { in tty_release_checks()
1631 if (o_tty != tty->driver->other->ttys[idx]) { in tty_release_checks()
1633 idx, tty->driver->other->ttys[idx]); in tty_release_checks()
1740 if (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_release()
1741 tty->driver->subtype == PTY_TYPE_MASTER) in tty_release()
1915 struct tty_driver *driver = NULL; in tty_lookup_driver() local
1922 driver = tty_driver_kref_get(console_driver); in tty_lookup_driver()
1931 driver = tty_driver_kref_get(console_driver); in tty_lookup_driver()
1932 if (driver && filp) { in tty_lookup_driver()
1938 if (driver) in tty_lookup_driver()
1939 tty_driver_kref_put(driver); in tty_lookup_driver()
1943 driver = get_tty_driver(device, index); in tty_lookup_driver()
1944 if (!driver) in tty_lookup_driver()
1948 return driver; in tty_lookup_driver()
1954 struct tty_driver *driver; in tty_kopen() local
1958 driver = tty_lookup_driver(device, NULL, &index); in tty_kopen()
1959 if (IS_ERR(driver)) { in tty_kopen()
1961 return ERR_CAST(driver); in tty_kopen()
1965 tty = tty_driver_lookup_tty(driver, NULL, index); in tty_kopen()
1974 tty = tty_init_dev(driver, index); in tty_kopen()
1981 tty_driver_kref_put(driver); in tty_kopen()
2040 struct tty_driver *driver = NULL; in tty_open_by_driver() local
2045 driver = tty_lookup_driver(device, filp, &index); in tty_open_by_driver()
2046 if (IS_ERR(driver)) { in tty_open_by_driver()
2048 return ERR_CAST(driver); in tty_open_by_driver()
2052 tty = tty_driver_lookup_tty(driver, filp, index); in tty_open_by_driver()
2080 tty = tty_init_dev(driver, index); in tty_open_by_driver()
2084 tty_driver_kref_put(driver); in tty_open_by_driver()
2173 (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_open()
2174 tty->driver->subtype == PTY_TYPE_MASTER); in tty_open()
2477 if (tty->driver->flags & TTY_DRIVER_HARDWARE_BREAK) in send_break()
2643 if (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_pair_get_tty()
2644 tty->driver->subtype == PTY_TYPE_MASTER) in tty_pair_get_tty()
3085 struct tty_struct *alloc_tty_struct(struct tty_driver *driver, int idx) in alloc_tty_struct() argument
3115 tty->driver = driver; in alloc_tty_struct()
3116 tty->ops = driver->ops; in alloc_tty_struct()
3118 tty_line_name(driver, idx, tty->name); in alloc_tty_struct()
3145 static int tty_cdev_add(struct tty_driver *driver, dev_t dev, in tty_cdev_add() argument
3151 driver->cdevs[index] = cdev_alloc(); in tty_cdev_add()
3152 if (!driver->cdevs[index]) in tty_cdev_add()
3154 driver->cdevs[index]->ops = &tty_fops; in tty_cdev_add()
3155 driver->cdevs[index]->owner = driver->owner; in tty_cdev_add()
3156 err = cdev_add(driver->cdevs[index], dev, count); in tty_cdev_add()
3158 kobject_put(&driver->cdevs[index]->kobj); in tty_cdev_add()
3180 struct device *tty_register_device(struct tty_driver *driver, unsigned index, in tty_register_device() argument
3183 return tty_register_device_attr(driver, index, device, NULL, NULL); in tty_register_device()
3212 struct device *tty_register_device_attr(struct tty_driver *driver, in tty_register_device_attr() argument
3218 dev_t devt = MKDEV(driver->major, driver->minor_start) + index; in tty_register_device_attr()
3223 if (index >= driver->num) { in tty_register_device_attr()
3225 driver->name, index); in tty_register_device_attr()
3229 if (driver->type == TTY_DRIVER_TYPE_PTY) in tty_register_device_attr()
3230 pty_line_name(driver, index, name); in tty_register_device_attr()
3232 tty_line_name(driver, index, name); in tty_register_device_attr()
3252 if (!(driver->flags & TTY_DRIVER_DYNAMIC_ALLOC)) { in tty_register_device_attr()
3257 tp = driver->termios[index]; in tty_register_device_attr()
3259 driver->termios[index] = NULL; in tty_register_device_attr()
3263 retval = tty_cdev_add(driver, devt, index, 1); in tty_register_device_attr()
3292 void tty_unregister_device(struct tty_driver *driver, unsigned index) in tty_unregister_device() argument
3294 device_destroy(&tty_class, MKDEV(driver->major, driver->minor_start) + index); in tty_unregister_device()
3295 if (!(driver->flags & TTY_DRIVER_DYNAMIC_ALLOC)) { in tty_unregister_device()
3296 cdev_del(driver->cdevs[index]); in tty_unregister_device()
3297 driver->cdevs[index] = NULL; in tty_unregister_device()
3314 struct tty_driver *driver; in __tty_alloc_driver() local
3321 driver = kzalloc(sizeof(*driver), GFP_KERNEL); in __tty_alloc_driver()
3322 if (!driver) in __tty_alloc_driver()
3325 kref_init(&driver->kref); in __tty_alloc_driver()
3326 driver->num = lines; in __tty_alloc_driver()
3327 driver->owner = owner; in __tty_alloc_driver()
3328 driver->flags = flags; in __tty_alloc_driver()
3331 driver->ttys = kcalloc(lines, sizeof(*driver->ttys), in __tty_alloc_driver()
3333 driver->termios = kcalloc(lines, sizeof(*driver->termios), in __tty_alloc_driver()
3335 if (!driver->ttys || !driver->termios) { in __tty_alloc_driver()
3342 driver->ports = kcalloc(lines, sizeof(*driver->ports), in __tty_alloc_driver()
3344 if (!driver->ports) { in __tty_alloc_driver()
3351 driver->cdevs = kcalloc(cdevs, sizeof(*driver->cdevs), GFP_KERNEL); in __tty_alloc_driver()
3352 if (!driver->cdevs) { in __tty_alloc_driver()
3357 return driver; in __tty_alloc_driver()
3359 kfree(driver->ports); in __tty_alloc_driver()
3360 kfree(driver->ttys); in __tty_alloc_driver()
3361 kfree(driver->termios); in __tty_alloc_driver()
3362 kfree(driver->cdevs); in __tty_alloc_driver()
3363 kfree(driver); in __tty_alloc_driver()
3370 struct tty_driver *driver = container_of(kref, struct tty_driver, kref); in destruct_tty_driver() local
3374 if (driver->flags & TTY_DRIVER_INSTALLED) { in destruct_tty_driver()
3375 for (i = 0; i < driver->num; i++) { in destruct_tty_driver()
3376 tp = driver->termios[i]; in destruct_tty_driver()
3378 driver->termios[i] = NULL; in destruct_tty_driver()
3381 if (!(driver->flags & TTY_DRIVER_DYNAMIC_DEV)) in destruct_tty_driver()
3382 tty_unregister_device(driver, i); in destruct_tty_driver()
3384 proc_tty_unregister_driver(driver); in destruct_tty_driver()
3385 if (driver->flags & TTY_DRIVER_DYNAMIC_ALLOC) in destruct_tty_driver()
3386 cdev_del(driver->cdevs[0]); in destruct_tty_driver()
3388 kfree(driver->cdevs); in destruct_tty_driver()
3389 kfree(driver->ports); in destruct_tty_driver()
3390 kfree(driver->termios); in destruct_tty_driver()
3391 kfree(driver->ttys); in destruct_tty_driver()
3392 kfree(driver); in destruct_tty_driver()
3401 void tty_driver_kref_put(struct tty_driver *driver) in tty_driver_kref_put() argument
3403 kref_put(&driver->kref, destruct_tty_driver); in tty_driver_kref_put()
3413 int tty_register_driver(struct tty_driver *driver) in tty_register_driver() argument
3420 if (!driver->major) { in tty_register_driver()
3421 error = alloc_chrdev_region(&dev, driver->minor_start, in tty_register_driver()
3422 driver->num, driver->name); in tty_register_driver()
3424 driver->major = MAJOR(dev); in tty_register_driver()
3425 driver->minor_start = MINOR(dev); in tty_register_driver()
3428 dev = MKDEV(driver->major, driver->minor_start); in tty_register_driver()
3429 error = register_chrdev_region(dev, driver->num, driver->name); in tty_register_driver()
3434 if (driver->flags & TTY_DRIVER_DYNAMIC_ALLOC) { in tty_register_driver()
3435 error = tty_cdev_add(driver, dev, 0, driver->num); in tty_register_driver()
3441 list_add(&driver->tty_drivers, &tty_drivers); in tty_register_driver()
3444 if (!(driver->flags & TTY_DRIVER_DYNAMIC_DEV)) { in tty_register_driver()
3445 for (i = 0; i < driver->num; i++) { in tty_register_driver()
3446 d = tty_register_device(driver, i, NULL); in tty_register_driver()
3453 proc_tty_register_driver(driver); in tty_register_driver()
3454 driver->flags |= TTY_DRIVER_INSTALLED; in tty_register_driver()
3459 tty_unregister_device(driver, i); in tty_register_driver()
3462 list_del(&driver->tty_drivers); in tty_register_driver()
3466 unregister_chrdev_region(dev, driver->num); in tty_register_driver()
3478 void tty_unregister_driver(struct tty_driver *driver) in tty_unregister_driver() argument
3480 unregister_chrdev_region(MKDEV(driver->major, driver->minor_start), in tty_unregister_driver()
3481 driver->num); in tty_unregister_driver()
3483 list_del(&driver->tty_drivers); in tty_unregister_driver()
3490 return MKDEV(tty->driver->major, tty->driver->minor_start) + tty->index; in tty_devnum()