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()
1196 static void pty_line_name(struct tty_driver *driver, int index, char *p) in pty_line_name() argument
1198 int i = index + driver->name_base; in pty_line_name()
1201 driver->subtype == PTY_TYPE_SLAVE ? "tty" : driver->name, in pty_line_name()
1216 static ssize_t tty_line_name(struct tty_driver *driver, int index, char *p) in tty_line_name() argument
1218 if (driver->flags & TTY_DRIVER_UNNUMBERED_NODE) in tty_line_name()
1219 return sprintf(p, "%s", driver->name); in tty_line_name()
1221 return sprintf(p, "%s%d", driver->name, in tty_line_name()
1222 index + driver->name_base); in tty_line_name()
1235 static struct tty_struct *tty_driver_lookup_tty(struct tty_driver *driver, in tty_driver_lookup_tty() argument
1240 if (driver->ops->lookup) in tty_driver_lookup_tty()
1244 tty = driver->ops->lookup(driver, file, idx); in tty_driver_lookup_tty()
1246 tty = driver->ttys[idx]; in tty_driver_lookup_tty()
1266 if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) in tty_init_termios()
1267 tty->termios = tty->driver->init_termios; in tty_init_termios()
1270 tp = tty->driver->termios[idx]; in tty_init_termios()
1273 tty->termios.c_line = tty->driver->init_termios.c_line; in tty_init_termios()
1275 tty->termios = tty->driver->init_termios; in tty_init_termios()
1283 int tty_standard_install(struct tty_driver *driver, struct tty_struct *tty) in tty_standard_install() argument
1286 tty_driver_kref_get(driver); in tty_standard_install()
1288 driver->ttys[tty->index] = tty; in tty_standard_install()
1305 static int tty_driver_install_tty(struct tty_driver *driver, in tty_driver_install_tty() argument
1308 return driver->ops->install ? driver->ops->install(driver, tty) : in tty_driver_install_tty()
1309 tty_standard_install(driver, tty); in tty_driver_install_tty()
1322 static void tty_driver_remove_tty(struct tty_driver *driver, struct tty_struct *tty) in tty_driver_remove_tty() argument
1324 if (driver->ops->remove) in tty_driver_remove_tty()
1325 driver->ops->remove(driver, tty); in tty_driver_remove_tty()
1327 driver->ttys[tty->index] = NULL; in tty_driver_remove_tty()
1341 struct tty_driver *driver = tty->driver; in tty_reopen() local
1345 if (driver->type == TTY_DRIVER_TYPE_PTY && in tty_reopen()
1346 driver->subtype == PTY_TYPE_MASTER) in tty_reopen()
1399 struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx) in tty_init_dev() argument
1412 if (!try_module_get(driver->owner)) in tty_init_dev()
1415 tty = alloc_tty_struct(driver, idx); in tty_init_dev()
1422 retval = tty_driver_install_tty(driver, tty); in tty_init_dev()
1427 tty->port = driver->ports[idx]; in tty_init_dev()
1431 __func__, tty->driver->name)) { in tty_init_dev()
1457 module_put(driver->owner); in tty_init_dev()
1483 if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) in tty_save_termios()
1487 tp = tty->driver->termios[idx]; in tty_save_termios()
1492 tty->driver->termios[idx] = tp; in tty_save_termios()
1533 struct tty_driver *driver = tty->driver; in release_one_tty() local
1534 struct module *owner = driver->owner; in release_one_tty()
1540 tty_driver_kref_put(driver); in release_one_tty()
1597 tty_driver_remove_tty(tty->driver, tty); in release_tty()
1622 if (idx < 0 || idx >= tty->driver->num) { in tty_release_checks()
1628 if (tty->driver->flags & TTY_DRIVER_DEVPTS_MEM) in tty_release_checks()
1631 if (tty != tty->driver->ttys[idx]) { in tty_release_checks()
1633 idx, tty->driver->ttys[idx]); in tty_release_checks()
1636 if (tty->driver->other) { in tty_release_checks()
1639 if (o_tty != tty->driver->other->ttys[idx]) { in tty_release_checks()
1641 idx, tty->driver->other->ttys[idx]); in tty_release_checks()
1749 if (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_release()
1750 tty->driver->subtype == PTY_TYPE_MASTER) in tty_release()
1922 struct tty_driver *driver = NULL; in tty_lookup_driver() local
1928 driver = tty_driver_kref_get(console_driver); in tty_lookup_driver()
1936 driver = tty_driver_kref_get(console_driver); in tty_lookup_driver()
1937 if (driver && filp) { in tty_lookup_driver()
1943 if (driver) in tty_lookup_driver()
1944 tty_driver_kref_put(driver); in tty_lookup_driver()
1948 driver = get_tty_driver(device, index); in tty_lookup_driver()
1949 if (!driver) in tty_lookup_driver()
1953 return driver; in tty_lookup_driver()
1974 struct tty_driver *driver; in tty_kopen() local
1978 driver = tty_lookup_driver(device, NULL, &index); in tty_kopen()
1979 if (IS_ERR(driver)) { in tty_kopen()
1981 return ERR_CAST(driver); in tty_kopen()
1985 tty = tty_driver_lookup_tty(driver, NULL, index); in tty_kopen()
1994 tty = tty_init_dev(driver, index); in tty_kopen()
2001 tty_driver_kref_put(driver); in tty_kopen()
2025 struct tty_driver *driver = NULL; in tty_open_by_driver() local
2030 driver = tty_lookup_driver(device, filp, &index); in tty_open_by_driver()
2031 if (IS_ERR(driver)) { in tty_open_by_driver()
2033 return ERR_CAST(driver); in tty_open_by_driver()
2037 tty = tty_driver_lookup_tty(driver, filp, index); in tty_open_by_driver()
2065 tty = tty_init_dev(driver, index); in tty_open_by_driver()
2069 tty_driver_kref_put(driver); in tty_open_by_driver()
2159 (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_open()
2160 tty->driver->subtype == PTY_TYPE_MASTER); in tty_open()
2469 if (tty->driver->flags & TTY_DRIVER_HARDWARE_BREAK) in send_break()
2611 if (tty->driver->type == TTY_DRIVER_TYPE_PTY && in tty_pair_get_tty()
2612 tty->driver->subtype == PTY_TYPE_MASTER) in tty_pair_get_tty()
3067 struct tty_struct *alloc_tty_struct(struct tty_driver *driver, int idx) in alloc_tty_struct() argument
3098 tty->driver = driver; in alloc_tty_struct()
3099 tty->ops = driver->ops; in alloc_tty_struct()
3101 tty_line_name(driver, idx, tty->name); in alloc_tty_struct()
3129 static int tty_cdev_add(struct tty_driver *driver, dev_t dev, in tty_cdev_add() argument
3135 driver->cdevs[index] = cdev_alloc(); in tty_cdev_add()
3136 if (!driver->cdevs[index]) in tty_cdev_add()
3138 driver->cdevs[index]->ops = &tty_fops; in tty_cdev_add()
3139 driver->cdevs[index]->owner = driver->owner; in tty_cdev_add()
3140 err = cdev_add(driver->cdevs[index], dev, count); in tty_cdev_add()
3142 kobject_put(&driver->cdevs[index]->kobj); in tty_cdev_add()
3165 struct device *tty_register_device(struct tty_driver *driver, unsigned index, in tty_register_device() argument
3168 return tty_register_device_attr(driver, index, device, NULL, NULL); in tty_register_device()
3198 struct device *tty_register_device_attr(struct tty_driver *driver, in tty_register_device_attr() argument
3204 dev_t devt = MKDEV(driver->major, driver->minor_start) + index; in tty_register_device_attr()
3209 if (index >= driver->num) { in tty_register_device_attr()
3211 driver->name, index); in tty_register_device_attr()
3215 if (driver->type == TTY_DRIVER_TYPE_PTY) in tty_register_device_attr()
3216 pty_line_name(driver, index, name); in tty_register_device_attr()
3218 tty_line_name(driver, index, name); in tty_register_device_attr()
3238 if (!(driver->flags & TTY_DRIVER_DYNAMIC_ALLOC)) { in tty_register_device_attr()
3243 tp = driver->termios[index]; in tty_register_device_attr()
3245 driver->termios[index] = NULL; in tty_register_device_attr()
3249 retval = tty_cdev_add(driver, devt, index, 1); in tty_register_device_attr()
3279 void tty_unregister_device(struct tty_driver *driver, unsigned index) in tty_unregister_device() argument
3282 MKDEV(driver->major, driver->minor_start) + index); in tty_unregister_device()
3283 if (!(driver->flags & TTY_DRIVER_DYNAMIC_ALLOC)) { in tty_unregister_device()
3284 cdev_del(driver->cdevs[index]); in tty_unregister_device()
3285 driver->cdevs[index] = NULL; in tty_unregister_device()
3302 struct tty_driver *driver; in __tty_alloc_driver() local
3309 driver = kzalloc(sizeof(*driver), GFP_KERNEL); in __tty_alloc_driver()
3310 if (!driver) in __tty_alloc_driver()
3313 kref_init(&driver->kref); in __tty_alloc_driver()
3314 driver->magic = TTY_DRIVER_MAGIC; in __tty_alloc_driver()
3315 driver->num = lines; in __tty_alloc_driver()
3316 driver->owner = owner; in __tty_alloc_driver()
3317 driver->flags = flags; in __tty_alloc_driver()
3320 driver->ttys = kcalloc(lines, sizeof(*driver->ttys), in __tty_alloc_driver()
3322 driver->termios = kcalloc(lines, sizeof(*driver->termios), in __tty_alloc_driver()
3324 if (!driver->ttys || !driver->termios) { in __tty_alloc_driver()
3331 driver->ports = kcalloc(lines, sizeof(*driver->ports), in __tty_alloc_driver()
3333 if (!driver->ports) { in __tty_alloc_driver()
3340 driver->cdevs = kcalloc(cdevs, sizeof(*driver->cdevs), GFP_KERNEL); in __tty_alloc_driver()
3341 if (!driver->cdevs) { in __tty_alloc_driver()
3346 return driver; in __tty_alloc_driver()
3348 kfree(driver->ports); in __tty_alloc_driver()
3349 kfree(driver->ttys); in __tty_alloc_driver()
3350 kfree(driver->termios); in __tty_alloc_driver()
3351 kfree(driver->cdevs); in __tty_alloc_driver()
3352 kfree(driver); in __tty_alloc_driver()
3359 struct tty_driver *driver = container_of(kref, struct tty_driver, kref); in destruct_tty_driver() local
3363 if (driver->flags & TTY_DRIVER_INSTALLED) { in destruct_tty_driver()
3364 for (i = 0; i < driver->num; i++) { in destruct_tty_driver()
3365 tp = driver->termios[i]; in destruct_tty_driver()
3367 driver->termios[i] = NULL; in destruct_tty_driver()
3370 if (!(driver->flags & TTY_DRIVER_DYNAMIC_DEV)) in destruct_tty_driver()
3371 tty_unregister_device(driver, i); in destruct_tty_driver()
3373 proc_tty_unregister_driver(driver); in destruct_tty_driver()
3374 if (driver->flags & TTY_DRIVER_DYNAMIC_ALLOC) in destruct_tty_driver()
3375 cdev_del(driver->cdevs[0]); in destruct_tty_driver()
3377 kfree(driver->cdevs); in destruct_tty_driver()
3378 kfree(driver->ports); in destruct_tty_driver()
3379 kfree(driver->termios); in destruct_tty_driver()
3380 kfree(driver->ttys); in destruct_tty_driver()
3381 kfree(driver); in destruct_tty_driver()
3384 void tty_driver_kref_put(struct tty_driver *driver) in tty_driver_kref_put() argument
3386 kref_put(&driver->kref, destruct_tty_driver); in tty_driver_kref_put()
3390 void tty_set_operations(struct tty_driver *driver, in tty_set_operations() argument
3393 driver->ops = op; in tty_set_operations()
3406 int tty_register_driver(struct tty_driver *driver) in tty_register_driver() argument
3413 if (!driver->major) { in tty_register_driver()
3414 error = alloc_chrdev_region(&dev, driver->minor_start, in tty_register_driver()
3415 driver->num, driver->name); in tty_register_driver()
3417 driver->major = MAJOR(dev); in tty_register_driver()
3418 driver->minor_start = MINOR(dev); in tty_register_driver()
3421 dev = MKDEV(driver->major, driver->minor_start); in tty_register_driver()
3422 error = register_chrdev_region(dev, driver->num, driver->name); in tty_register_driver()
3427 if (driver->flags & TTY_DRIVER_DYNAMIC_ALLOC) { in tty_register_driver()
3428 error = tty_cdev_add(driver, dev, 0, driver->num); in tty_register_driver()
3434 list_add(&driver->tty_drivers, &tty_drivers); in tty_register_driver()
3437 if (!(driver->flags & TTY_DRIVER_DYNAMIC_DEV)) { in tty_register_driver()
3438 for (i = 0; i < driver->num; i++) { in tty_register_driver()
3439 d = tty_register_device(driver, i, NULL); in tty_register_driver()
3446 proc_tty_register_driver(driver); in tty_register_driver()
3447 driver->flags |= TTY_DRIVER_INSTALLED; in tty_register_driver()
3452 tty_unregister_device(driver, i); in tty_register_driver()
3455 list_del(&driver->tty_drivers); in tty_register_driver()
3459 unregister_chrdev_region(dev, driver->num); in tty_register_driver()
3468 int tty_unregister_driver(struct tty_driver *driver) in tty_unregister_driver() argument
3472 if (driver->refcount) in tty_unregister_driver()
3475 unregister_chrdev_region(MKDEV(driver->major, driver->minor_start), in tty_unregister_driver()
3476 driver->num); in tty_unregister_driver()
3478 list_del(&driver->tty_drivers); in tty_unregister_driver()
3487 return MKDEV(tty->driver->major, tty->driver->minor_start) + tty->index; in tty_devnum()