Lines Matching refs:driver
253 if (!tty || !tty->driver) in tty_driver_name()
255 return tty->driver->name; in tty_driver_name()
283 if (tty->driver->type == TTY_DRIVER_TYPE_PTY && in check_tty_count()
284 tty->driver->subtype == PTY_TYPE_SLAVE && in check_tty_count()
1181 static void pty_line_name(struct tty_driver *driver, int index, char *p) in pty_line_name() argument
1184 int i = index + driver->name_base; in pty_line_name()
1187 driver->subtype == PTY_TYPE_SLAVE ? "tty" : driver->name, in pty_line_name()
1202 static ssize_t tty_line_name(struct tty_driver *driver, int index, char *p) in tty_line_name() argument
1204 if (driver->flags & TTY_DRIVER_UNNUMBERED_NODE) in tty_line_name()
1205 return sprintf(p, "%s", driver->name); in tty_line_name()
1207 return sprintf(p, "%s%d", driver->name, in tty_line_name()
1208 index + driver->name_base); in tty_line_name()
1222 static struct tty_struct *tty_driver_lookup_tty(struct tty_driver *driver, in tty_driver_lookup_tty() argument
1227 if (driver->ops->lookup) in tty_driver_lookup_tty()
1231 tty = driver->ops->lookup(driver, file, idx); in tty_driver_lookup_tty()
1233 tty = driver->ttys[idx]; in tty_driver_lookup_tty()
1252 if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) in tty_init_termios()
1253 tty->termios = tty->driver->init_termios; in tty_init_termios()
1256 tp = tty->driver->termios[idx]; in tty_init_termios()
1259 tty->termios.c_line = tty->driver->init_termios.c_line; in tty_init_termios()
1261 tty->termios = tty->driver->init_termios; in tty_init_termios()
1277 int tty_standard_install(struct tty_driver *driver, struct tty_struct *tty) in tty_standard_install() argument
1280 tty_driver_kref_get(driver); in tty_standard_install()
1282 driver->ttys[tty->index] = tty; in tty_standard_install()
1298 static int tty_driver_install_tty(struct tty_driver *driver, in tty_driver_install_tty() argument
1301 return driver->ops->install ? driver->ops->install(driver, tty) : in tty_driver_install_tty()
1302 tty_standard_install(driver, tty); in tty_driver_install_tty()
1315 static void tty_driver_remove_tty(struct tty_driver *driver, struct tty_struct *tty) in tty_driver_remove_tty() argument
1317 if (driver->ops->remove) in tty_driver_remove_tty()
1318 driver->ops->remove(driver, tty); in tty_driver_remove_tty()
1320 driver->ttys[tty->index] = NULL; in tty_driver_remove_tty()
1334 struct tty_driver *driver = tty->driver; in tty_reopen() local
1338 if (driver->type == TTY_DRIVER_TYPE_PTY && in tty_reopen()
1339 driver->subtype == PTY_TYPE_MASTER) in tty_reopen()
1390 struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx) in tty_init_dev() argument
1403 if (!try_module_get(driver->owner)) in tty_init_dev()
1406 tty = alloc_tty_struct(driver, idx); in tty_init_dev()
1413 retval = tty_driver_install_tty(driver, tty); in tty_init_dev()
1418 tty->port = driver->ports[idx]; in tty_init_dev()
1422 __func__, tty->driver->name)) { in tty_init_dev()
1448 module_put(driver->owner); in tty_init_dev()
1474 if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) in tty_save_termios()
1478 tp = tty->driver->termios[idx]; in tty_save_termios()
1483 tty->driver->termios[idx] = tp; in tty_save_termios()
1524 struct tty_driver *driver = tty->driver; in release_one_tty() local
1525 struct module *owner = driver->owner; in release_one_tty()
1530 tty_driver_kref_put(driver); in release_one_tty()
1588 tty_driver_remove_tty(tty->driver, tty); in release_tty()
1613 if (idx < 0 || idx >= tty->driver->num) { in tty_release_checks()
1619 if (tty->driver->flags & TTY_DRIVER_DEVPTS_MEM) in tty_release_checks()
1622 if (tty != tty->driver->ttys[idx]) { in tty_release_checks()
1624 idx, tty->driver->ttys[idx]); in tty_release_checks()
1627 if (tty->driver->other) { in tty_release_checks()
1630 if (o_tty != tty->driver->other->ttys[idx]) { in tty_release_checks()
1632 idx, tty->driver->other->ttys[idx]); in tty_release_checks()
1739 if (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_release()
1740 tty->driver->subtype == PTY_TYPE_MASTER) in tty_release()
1914 struct tty_driver *driver = NULL; in tty_lookup_driver() local
1921 driver = tty_driver_kref_get(console_driver); in tty_lookup_driver()
1930 driver = tty_driver_kref_get(console_driver); in tty_lookup_driver()
1931 if (driver && filp) { in tty_lookup_driver()
1937 if (driver) in tty_lookup_driver()
1938 tty_driver_kref_put(driver); in tty_lookup_driver()
1942 driver = get_tty_driver(device, index); in tty_lookup_driver()
1943 if (!driver) in tty_lookup_driver()
1947 return driver; in tty_lookup_driver()
1953 struct tty_driver *driver; in tty_kopen() local
1957 driver = tty_lookup_driver(device, NULL, &index); in tty_kopen()
1958 if (IS_ERR(driver)) { in tty_kopen()
1960 return ERR_CAST(driver); in tty_kopen()
1964 tty = tty_driver_lookup_tty(driver, NULL, index); in tty_kopen()
1973 tty = tty_init_dev(driver, index); in tty_kopen()
1980 tty_driver_kref_put(driver); in tty_kopen()
2039 struct tty_driver *driver = NULL; in tty_open_by_driver() local
2044 driver = tty_lookup_driver(device, filp, &index); in tty_open_by_driver()
2045 if (IS_ERR(driver)) { in tty_open_by_driver()
2047 return ERR_CAST(driver); in tty_open_by_driver()
2051 tty = tty_driver_lookup_tty(driver, filp, index); in tty_open_by_driver()
2079 tty = tty_init_dev(driver, index); in tty_open_by_driver()
2083 tty_driver_kref_put(driver); in tty_open_by_driver()
2172 (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_open()
2173 tty->driver->subtype == PTY_TYPE_MASTER); in tty_open()
2472 if (tty->driver->flags & TTY_DRIVER_HARDWARE_BREAK) in send_break()
2638 if (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_pair_get_tty()
2639 tty->driver->subtype == PTY_TYPE_MASTER) in tty_pair_get_tty()
3080 struct tty_struct *alloc_tty_struct(struct tty_driver *driver, int idx) in alloc_tty_struct() argument
3110 tty->driver = driver; in alloc_tty_struct()
3111 tty->ops = driver->ops; in alloc_tty_struct()
3113 tty_line_name(driver, idx, tty->name); in alloc_tty_struct()
3142 static int tty_cdev_add(struct tty_driver *driver, dev_t dev, in tty_cdev_add() argument
3148 driver->cdevs[index] = cdev_alloc(); in tty_cdev_add()
3149 if (!driver->cdevs[index]) in tty_cdev_add()
3151 driver->cdevs[index]->ops = &tty_fops; in tty_cdev_add()
3152 driver->cdevs[index]->owner = driver->owner; in tty_cdev_add()
3153 err = cdev_add(driver->cdevs[index], dev, count); in tty_cdev_add()
3155 kobject_put(&driver->cdevs[index]->kobj); in tty_cdev_add()
3177 struct device *tty_register_device(struct tty_driver *driver, unsigned index, in tty_register_device() argument
3180 return tty_register_device_attr(driver, index, device, NULL, NULL); in tty_register_device()
3209 struct device *tty_register_device_attr(struct tty_driver *driver, in tty_register_device_attr() argument
3215 dev_t devt = MKDEV(driver->major, driver->minor_start) + index; in tty_register_device_attr()
3220 if (index >= driver->num) { in tty_register_device_attr()
3222 driver->name, index); in tty_register_device_attr()
3226 if (driver->type == TTY_DRIVER_TYPE_PTY) in tty_register_device_attr()
3227 pty_line_name(driver, index, name); in tty_register_device_attr()
3229 tty_line_name(driver, index, name); in tty_register_device_attr()
3249 if (!(driver->flags & TTY_DRIVER_DYNAMIC_ALLOC)) { in tty_register_device_attr()
3254 tp = driver->termios[index]; in tty_register_device_attr()
3256 driver->termios[index] = NULL; in tty_register_device_attr()
3260 retval = tty_cdev_add(driver, devt, index, 1); in tty_register_device_attr()
3289 void tty_unregister_device(struct tty_driver *driver, unsigned index) in tty_unregister_device() argument
3292 MKDEV(driver->major, driver->minor_start) + index); in tty_unregister_device()
3293 if (!(driver->flags & TTY_DRIVER_DYNAMIC_ALLOC)) { in tty_unregister_device()
3294 cdev_del(driver->cdevs[index]); in tty_unregister_device()
3295 driver->cdevs[index] = NULL; in tty_unregister_device()
3312 struct tty_driver *driver; in __tty_alloc_driver() local
3319 driver = kzalloc(sizeof(*driver), GFP_KERNEL); in __tty_alloc_driver()
3320 if (!driver) in __tty_alloc_driver()
3323 kref_init(&driver->kref); in __tty_alloc_driver()
3324 driver->num = lines; in __tty_alloc_driver()
3325 driver->owner = owner; in __tty_alloc_driver()
3326 driver->flags = flags; in __tty_alloc_driver()
3329 driver->ttys = kcalloc(lines, sizeof(*driver->ttys), in __tty_alloc_driver()
3331 driver->termios = kcalloc(lines, sizeof(*driver->termios), in __tty_alloc_driver()
3333 if (!driver->ttys || !driver->termios) { in __tty_alloc_driver()
3340 driver->ports = kcalloc(lines, sizeof(*driver->ports), in __tty_alloc_driver()
3342 if (!driver->ports) { in __tty_alloc_driver()
3349 driver->cdevs = kcalloc(cdevs, sizeof(*driver->cdevs), GFP_KERNEL); in __tty_alloc_driver()
3350 if (!driver->cdevs) { in __tty_alloc_driver()
3355 return driver; in __tty_alloc_driver()
3357 kfree(driver->ports); in __tty_alloc_driver()
3358 kfree(driver->ttys); in __tty_alloc_driver()
3359 kfree(driver->termios); in __tty_alloc_driver()
3360 kfree(driver->cdevs); in __tty_alloc_driver()
3361 kfree(driver); in __tty_alloc_driver()
3368 struct tty_driver *driver = container_of(kref, struct tty_driver, kref); in destruct_tty_driver() local
3372 if (driver->flags & TTY_DRIVER_INSTALLED) { in destruct_tty_driver()
3373 for (i = 0; i < driver->num; i++) { in destruct_tty_driver()
3374 tp = driver->termios[i]; in destruct_tty_driver()
3376 driver->termios[i] = NULL; in destruct_tty_driver()
3379 if (!(driver->flags & TTY_DRIVER_DYNAMIC_DEV)) in destruct_tty_driver()
3380 tty_unregister_device(driver, i); in destruct_tty_driver()
3382 proc_tty_unregister_driver(driver); in destruct_tty_driver()
3383 if (driver->flags & TTY_DRIVER_DYNAMIC_ALLOC) in destruct_tty_driver()
3384 cdev_del(driver->cdevs[0]); in destruct_tty_driver()
3386 kfree(driver->cdevs); in destruct_tty_driver()
3387 kfree(driver->ports); in destruct_tty_driver()
3388 kfree(driver->termios); in destruct_tty_driver()
3389 kfree(driver->ttys); in destruct_tty_driver()
3390 kfree(driver); in destruct_tty_driver()
3399 void tty_driver_kref_put(struct tty_driver *driver) in tty_driver_kref_put() argument
3401 kref_put(&driver->kref, destruct_tty_driver); in tty_driver_kref_put()
3411 int tty_register_driver(struct tty_driver *driver) in tty_register_driver() argument
3418 if (!driver->major) { in tty_register_driver()
3419 error = alloc_chrdev_region(&dev, driver->minor_start, in tty_register_driver()
3420 driver->num, driver->name); in tty_register_driver()
3422 driver->major = MAJOR(dev); in tty_register_driver()
3423 driver->minor_start = MINOR(dev); in tty_register_driver()
3426 dev = MKDEV(driver->major, driver->minor_start); in tty_register_driver()
3427 error = register_chrdev_region(dev, driver->num, driver->name); in tty_register_driver()
3432 if (driver->flags & TTY_DRIVER_DYNAMIC_ALLOC) { in tty_register_driver()
3433 error = tty_cdev_add(driver, dev, 0, driver->num); in tty_register_driver()
3439 list_add(&driver->tty_drivers, &tty_drivers); in tty_register_driver()
3442 if (!(driver->flags & TTY_DRIVER_DYNAMIC_DEV)) { in tty_register_driver()
3443 for (i = 0; i < driver->num; i++) { in tty_register_driver()
3444 d = tty_register_device(driver, i, NULL); in tty_register_driver()
3451 proc_tty_register_driver(driver); in tty_register_driver()
3452 driver->flags |= TTY_DRIVER_INSTALLED; in tty_register_driver()
3457 tty_unregister_device(driver, i); in tty_register_driver()
3460 list_del(&driver->tty_drivers); in tty_register_driver()
3464 unregister_chrdev_region(dev, driver->num); in tty_register_driver()
3476 void tty_unregister_driver(struct tty_driver *driver) in tty_unregister_driver() argument
3478 unregister_chrdev_region(MKDEV(driver->major, driver->minor_start), in tty_unregister_driver()
3479 driver->num); in tty_unregister_driver()
3481 list_del(&driver->tty_drivers); in tty_unregister_driver()
3488 return MKDEV(tty->driver->major, tty->driver->minor_start) + tty->index; in tty_devnum()