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-rw-r--r--drivers/s390/char/fs3270.c29
-rw-r--r--drivers/s390/char/raw3270.c76
-rw-r--r--drivers/s390/char/raw3270.h11
-rw-r--r--drivers/s390/char/tty3270.c49
4 files changed, 83 insertions, 82 deletions
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 911704571b9c..230697aac94b 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -443,7 +443,7 @@ fs3270_open(struct inode *inode, struct file *filp)
tty_kref_put(tty);
return -ENODEV;
}
- minor = tty->index + RAW3270_FIRSTMINOR;
+ minor = tty->index;
tty_kref_put(tty);
}
mutex_lock(&fs3270_mutex);
@@ -524,6 +524,25 @@ static const struct file_operations fs3270_fops = {
.llseek = no_llseek,
};
+void fs3270_create_cb(int minor)
+{
+ __register_chrdev(IBM_FS3270_MAJOR, minor, 1, "tub", &fs3270_fops);
+ device_create(class3270, NULL, MKDEV(IBM_FS3270_MAJOR, minor),
+ NULL, "3270/tub%d", minor);
+}
+
+void fs3270_destroy_cb(int minor)
+{
+ device_destroy(class3270, MKDEV(IBM_FS3270_MAJOR, minor));
+ __unregister_chrdev(IBM_FS3270_MAJOR, minor, 1, "tub");
+}
+
+struct raw3270_notifier fs3270_notifier =
+{
+ .create = fs3270_create_cb,
+ .destroy = fs3270_destroy_cb,
+};
+
/*
* 3270 fullscreen driver initialization.
*/
@@ -532,16 +551,20 @@ fs3270_init(void)
{
int rc;
- rc = register_chrdev(IBM_FS3270_MAJOR, "fs3270", &fs3270_fops);
+ rc = __register_chrdev(IBM_FS3270_MAJOR, 0, 1, "fs3270", &fs3270_fops);
if (rc)
return rc;
+ device_create(class3270, NULL, MKDEV(IBM_FS3270_MAJOR, 0),
+ NULL, "3270/tub");
+ raw3270_register_notifier(&fs3270_notifier);
return 0;
}
static void __exit
fs3270_exit(void)
{
- unregister_chrdev(IBM_FS3270_MAJOR, "fs3270");
+ raw3270_unregister_notifier(&fs3270_notifier);
+ __unregister_chrdev(IBM_FS3270_MAJOR, 0, 1, "fs3270");
}
MODULE_LICENSE("GPL");
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 9a6c140c5f07..72f69fda9d01 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -28,7 +28,7 @@
#include <linux/device.h>
#include <linux/mutex.h>
-static struct class *class3270;
+struct class *class3270;
/* The main 3270 data structure. */
struct raw3270 {
@@ -46,8 +46,6 @@ struct raw3270 {
struct timer_list timer; /* Device timer. */
unsigned char *ascebc; /* ascii -> ebcdic table */
- struct device *clttydev; /* 3270-class tty device ptr */
- struct device *cltubdev; /* 3270-class tub device ptr */
struct raw3270_request init_request;
unsigned char init_data[256];
@@ -1072,10 +1070,6 @@ raw3270_delete_device(struct raw3270 *rp)
/* Remove from device chain. */
mutex_lock(&raw3270_mutex);
- if (rp->clttydev && !IS_ERR(rp->clttydev))
- device_destroy(class3270, MKDEV(IBM_TTY3270_MAJOR, rp->minor));
- if (rp->cltubdev && !IS_ERR(rp->cltubdev))
- device_destroy(class3270, MKDEV(IBM_FS3270_MAJOR, rp->minor));
list_del_init(&rp->list);
mutex_unlock(&raw3270_mutex);
@@ -1139,75 +1133,34 @@ static struct attribute_group raw3270_attr_group = {
static int raw3270_create_attributes(struct raw3270 *rp)
{
- int rc;
-
- rc = sysfs_create_group(&rp->cdev->dev.kobj, &raw3270_attr_group);
- if (rc)
- goto out;
-
- rp->clttydev = device_create(class3270, &rp->cdev->dev,
- MKDEV(IBM_TTY3270_MAJOR, rp->minor), NULL,
- "tty%s", dev_name(&rp->cdev->dev));
- if (IS_ERR(rp->clttydev)) {
- rc = PTR_ERR(rp->clttydev);
- goto out_ttydev;
- }
-
- rp->cltubdev = device_create(class3270, &rp->cdev->dev,
- MKDEV(IBM_FS3270_MAJOR, rp->minor), NULL,
- "tub%s", dev_name(&rp->cdev->dev));
- if (!IS_ERR(rp->cltubdev))
- goto out;
-
- rc = PTR_ERR(rp->cltubdev);
- device_destroy(class3270, MKDEV(IBM_TTY3270_MAJOR, rp->minor));
-
-out_ttydev:
- sysfs_remove_group(&rp->cdev->dev.kobj, &raw3270_attr_group);
-out:
- return rc;
+ return sysfs_create_group(&rp->cdev->dev.kobj, &raw3270_attr_group);
}
/*
* Notifier for device addition/removal
*/
-struct raw3270_notifier {
- struct list_head list;
- void (*notifier)(int, int);
-};
-
static LIST_HEAD(raw3270_notifier);
-int raw3270_register_notifier(void (*notifier)(int, int))
+int raw3270_register_notifier(struct raw3270_notifier *notifier)
{
- struct raw3270_notifier *np;
struct raw3270 *rp;
- np = kmalloc(sizeof(struct raw3270_notifier), GFP_KERNEL);
- if (!np)
- return -ENOMEM;
- np->notifier = notifier;
mutex_lock(&raw3270_mutex);
- list_add_tail(&np->list, &raw3270_notifier);
- list_for_each_entry(rp, &raw3270_devices, list) {
- get_device(&rp->cdev->dev);
- notifier(rp->minor, 1);
- }
+ list_add_tail(&notifier->list, &raw3270_notifier);
+ list_for_each_entry(rp, &raw3270_devices, list)
+ notifier->create(rp->minor);
mutex_unlock(&raw3270_mutex);
return 0;
}
-void raw3270_unregister_notifier(void (*notifier)(int, int))
+void raw3270_unregister_notifier(struct raw3270_notifier *notifier)
{
- struct raw3270_notifier *np;
+ struct raw3270 *rp;
mutex_lock(&raw3270_mutex);
- list_for_each_entry(np, &raw3270_notifier, list)
- if (np->notifier == notifier) {
- list_del(&np->list);
- kfree(np);
- break;
- }
+ list_for_each_entry(rp, &raw3270_devices, list)
+ notifier->destroy(rp->minor);
+ list_del(&notifier->list);
mutex_unlock(&raw3270_mutex);
}
@@ -1217,8 +1170,8 @@ void raw3270_unregister_notifier(void (*notifier)(int, int))
static int
raw3270_set_online (struct ccw_device *cdev)
{
- struct raw3270 *rp;
struct raw3270_notifier *np;
+ struct raw3270 *rp;
int rc;
rp = raw3270_create_device(cdev);
@@ -1239,7 +1192,7 @@ raw3270_set_online (struct ccw_device *cdev)
set_bit(RAW3270_FLAGS_READY, &rp->flags);
mutex_lock(&raw3270_mutex);
list_for_each_entry(np, &raw3270_notifier, list)
- np->notifier(rp->minor, 1);
+ np->create(rp->minor);
mutex_unlock(&raw3270_mutex);
return 0;
@@ -1290,7 +1243,7 @@ raw3270_remove (struct ccw_device *cdev)
mutex_lock(&raw3270_mutex);
list_for_each_entry(np, &raw3270_notifier, list)
- np->notifier(rp->minor, 0);
+ np->destroy(rp->minor);
mutex_unlock(&raw3270_mutex);
/* Reset 3270 device. */
@@ -1434,6 +1387,7 @@ MODULE_LICENSE("GPL");
module_init(raw3270_init);
module_exit(raw3270_exit);
+EXPORT_SYMBOL(class3270);
EXPORT_SYMBOL(raw3270_request_alloc);
EXPORT_SYMBOL(raw3270_request_free);
EXPORT_SYMBOL(raw3270_request_reset);
diff --git a/drivers/s390/char/raw3270.h b/drivers/s390/char/raw3270.h
index ed34eb2199cc..a4c79d043cd3 100644
--- a/drivers/s390/char/raw3270.h
+++ b/drivers/s390/char/raw3270.h
@@ -91,6 +91,7 @@ struct raw3270_iocb {
struct raw3270;
struct raw3270_view;
+extern struct class *class3270;
/* 3270 CCW request */
struct raw3270_request {
@@ -192,8 +193,14 @@ struct raw3270 *raw3270_setup_console(struct ccw_device *cdev);
void raw3270_wait_cons_dev(struct raw3270 *);
/* Notifier for device addition/removal */
-int raw3270_register_notifier(void (*notifier)(int, int));
-void raw3270_unregister_notifier(void (*notifier)(int, int));
+struct raw3270_notifier {
+ struct list_head list;
+ void (*create)(int minor);
+ void (*destroy)(int minor);
+};
+
+int raw3270_register_notifier(struct raw3270_notifier *);
+void raw3270_unregister_notifier(struct raw3270_notifier *);
void raw3270_pm_unfreeze(struct raw3270_view *);
/*
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 5e4b6fc49ae3..48767e6bab9d 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -829,9 +829,8 @@ tty3270_del_views(void)
{
int i;
- for (i = 0; i < tty3270_max_index; i++) {
- struct raw3270_view *view =
- raw3270_find_view(&tty3270_fn, i + RAW3270_FIRSTMINOR);
+ for (i = RAW3270_FIRSTMINOR; i <= tty3270_max_index; i++) {
+ struct raw3270_view *view = raw3270_find_view(&tty3270_fn, i);
if (!IS_ERR(view))
raw3270_del_view(view);
}
@@ -855,8 +854,7 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty)
int i, rc;
/* Check if the tty3270 is already there. */
- view = raw3270_find_view(&tty3270_fn,
- tty->index + RAW3270_FIRSTMINOR);
+ view = raw3270_find_view(&tty3270_fn, tty->index);
if (!IS_ERR(view)) {
tp = container_of(view, struct tty3270, view);
tty->driver_data = tp;
@@ -868,8 +866,8 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty)
tp->inattr = TF_INPUT;
return tty_port_install(&tp->port, driver, tty);
}
- if (tty3270_max_index < tty->index + 1)
- tty3270_max_index = tty->index + 1;
+ if (tty3270_max_index < tty->index)
+ tty3270_max_index = tty->index;
/* Quick exit if there is no device for tty->index. */
if (PTR_ERR(view) == -ENODEV)
@@ -880,8 +878,7 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty)
if (IS_ERR(tp))
return PTR_ERR(tp);
- rc = raw3270_add_view(&tp->view, &tty3270_fn,
- tty->index + RAW3270_FIRSTMINOR);
+ rc = raw3270_add_view(&tp->view, &tty3270_fn, tty->index);
if (rc) {
tty3270_free_view(tp);
return rc;
@@ -1788,6 +1785,22 @@ static const struct tty_operations tty3270_ops = {
.set_termios = tty3270_set_termios
};
+void tty3270_create_cb(int minor)
+{
+ tty_register_device(tty3270_driver, minor, NULL);
+}
+
+void tty3270_destroy_cb(int minor)
+{
+ tty_unregister_device(tty3270_driver, minor);
+}
+
+struct raw3270_notifier tty3270_notifier =
+{
+ .create = tty3270_create_cb,
+ .destroy = tty3270_destroy_cb,
+};
+
/*
* 3270 tty registration code called from tty_init().
* Most kernel services (incl. kmalloc) are available at this poimt.
@@ -1797,23 +1810,25 @@ static int __init tty3270_init(void)
struct tty_driver *driver;
int ret;
- driver = alloc_tty_driver(RAW3270_MAXDEVS);
- if (!driver)
- return -ENOMEM;
+ driver = tty_alloc_driver(RAW3270_MAXDEVS,
+ TTY_DRIVER_REAL_RAW |
+ TTY_DRIVER_DYNAMIC_DEV |
+ TTY_DRIVER_RESET_TERMIOS);
+ if (IS_ERR(driver))
+ return PTR_ERR(driver);
/*
* Initialize the tty_driver structure
* Entries in tty3270_driver that are NOT initialized:
* proc_entry, set_termios, flush_buffer, set_ldisc, write_proc
*/
- driver->driver_name = "ttyTUB";
- driver->name = "ttyTUB";
+ driver->driver_name = "tty3270";
+ driver->name = "3270/tty";
driver->major = IBM_TTY3270_MAJOR;
- driver->minor_start = RAW3270_FIRSTMINOR;
+ driver->minor_start = 0;
driver->type = TTY_DRIVER_TYPE_SYSTEM;
driver->subtype = SYSTEM_TYPE_TTY;
driver->init_termios = tty_std_termios;
- driver->flags = TTY_DRIVER_RESET_TERMIOS;
tty_set_operations(driver, &tty3270_ops);
ret = tty_register_driver(driver);
if (ret) {
@@ -1821,6 +1836,7 @@ static int __init tty3270_init(void)
return ret;
}
tty3270_driver = driver;
+ raw3270_register_notifier(&tty3270_notifier);
return 0;
}
@@ -1829,6 +1845,7 @@ tty3270_exit(void)
{
struct tty_driver *driver;
+ raw3270_unregister_notifier(&tty3270_notifier);
driver = tty3270_driver;
tty3270_driver = NULL;
tty_unregister_driver(driver);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-28 22:41:00 +0000