* -- Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kdev_t.h>
{
struct string *s;
- tp->rcl_walk = 0;
+ tp->rcl_walk = NULL;
if (len <= 0)
return;
if (tp->rcl_nr >= tp->rcl_max) {
else if (!list_empty(&tp->rcl_lines))
tp->rcl_walk = tp->rcl_lines.prev;
s = tp->rcl_walk ?
- list_entry(tp->rcl_walk, struct string, list) : 0;
+ list_entry(tp->rcl_walk, struct string, list) : NULL;
if (tp->rcl_walk) {
s = list_entry(tp->rcl_walk, struct string, list);
tty3270_update_prompt(tp, s->string, s->len);
} else
- tty3270_update_prompt(tp, 0, 0);
+ tty3270_update_prompt(tp, NULL, 0);
tty3270_set_timer(tp, 1);
}
spin_unlock_bh(&tp->view.lock);
* has to be emitted to the tty and for 0x6d the screen
* needs to be redrawn.
*/
- input = 0;
+ input = NULL;
len = 0;
if (tp->input->string[0] == 0x7d) {
/* Enter: write input to tty. */
tty3270_update_status(tp);
}
/* Clear input area. */
- tty3270_update_prompt(tp, 0, 0);
+ tty3270_update_prompt(tp, NULL, 0);
tty3270_set_timer(tp, 1);
} else if (tp->input->string[0] == 0x6d) {
/* Display has been cleared. Redraw. */
tp->update_flags = TTY_UPDATE_ALL;
tty3270_set_timer(tp, 1);
spin_unlock_irqrestore(&tp->view.lock, flags);
- start_tty(tp->tty);
return 0;
}
static void
tty3270_deactivate(struct raw3270_view *view)
{
- struct tty3270 *tp;
-
- tp = (struct tty3270 *) view;
- if (tp && tp->tty)
- stop_tty(tp->tty);
}
static int
struct tty3270 *tp;
int pages;
- tp = kmalloc(sizeof(struct tty3270),GFP_KERNEL);
+ tp = kzalloc(sizeof(struct tty3270), GFP_KERNEL);
if (!tp)
goto out_err;
- memset(tp, 0, sizeof(struct tty3270));
tp->freemem_pages =
kmalloc(sizeof(void *) * TTY3270_STRING_PAGES, GFP_KERNEL);
if (!tp->freemem_pages)
goto out_tp;
INIT_LIST_HEAD(&tp->freemem);
- init_timer(&tp->timer);
for (pages = 0; pages < TTY3270_STRING_PAGES; pages++) {
tp->freemem_pages[pages] = (void *)
__get_free_pages(GFP_KERNEL|GFP_DMA, 0);
tp->freemem_pages[pages], PAGE_SIZE);
}
tp->write = raw3270_request_alloc(TTY3270_OUTPUT_BUFFER_SIZE);
- if (!tp->write)
+ if (IS_ERR(tp->write))
goto out_pages;
tp->read = raw3270_request_alloc(0);
- if (!tp->read)
+ if (IS_ERR(tp->read))
goto out_write;
tp->kreset = raw3270_request_alloc(1);
- if (!tp->kreset)
+ if (IS_ERR(tp->kreset))
goto out_read;
tp->kbd = kbd_alloc();
if (!tp->kbd)
int lines;
size = sizeof(struct tty3270_line) * (tp->view.rows - 2);
- tp->screen = kmalloc(size, GFP_KERNEL);
+ tp->screen = kzalloc(size, GFP_KERNEL);
if (!tp->screen)
goto out_err;
- memset(tp->screen, 0, size);
for (lines = 0; lines < tp->view.rows - 2; lines++) {
size = sizeof(struct tty3270_cell) * tp->view.cols;
- tp->screen[lines].cells = kmalloc(size, GFP_KERNEL);
+ tp->screen[lines].cells = kzalloc(size, GFP_KERNEL);
if (!tp->screen[lines].cells)
goto out_screen;
- memset(tp->screen[lines].cells, 0, size);
}
return 0;
out_screen:
tp = (struct tty3270 *) view;
tty = tp->tty;
if (tty) {
- tty->driver_data = 0;
- tp->tty = tp->kbd->tty = 0;
+ tty->driver_data = NULL;
+ tp->tty = tp->kbd->tty = NULL;
tty_hangup(tty);
raw3270_put_view(&tp->view);
}
int i;
for (i = 0; i < tty3270_max_index; i++) {
- tp = (struct tty3270 *) raw3270_find_view(&tty3270_fn, i);
+ tp = (struct tty3270 *)
+ raw3270_find_view(&tty3270_fn, i + RAW3270_FIRSTMINOR);
if (!IS_ERR(tp))
raw3270_del_view(&tp->view);
}
if (tty->count > 1)
return 0;
/* Check if the tty3270 is already there. */
- tp = (struct tty3270 *) raw3270_find_view(&tty3270_fn, tty->index);
+ tp = (struct tty3270 *)
+ raw3270_find_view(&tty3270_fn,
+ tty->index + RAW3270_FIRSTMINOR);
if (!IS_ERR(tp)) {
tty->driver_data = tp;
tty->winsize.ws_row = tp->view.rows - 2;
(void (*)(unsigned long)) tty3270_read_tasklet,
(unsigned long) tp->read);
- rc = raw3270_add_view(&tp->view, &tty3270_fn, tty->index);
+ rc = raw3270_add_view(&tp->view, &tty3270_fn,
+ tty->index + RAW3270_FIRSTMINOR);
if (rc) {
tty3270_free_view(tp);
return rc;
rc = tty3270_alloc_screen(tp);
if (rc) {
- raw3270_del_view(&tp->view);
raw3270_put_view(&tp->view);
+ raw3270_del_view(&tp->view);
return rc;
}
return;
tp = (struct tty3270 *) tty->driver_data;
if (tp) {
- tty->driver_data = 0;
- tp->tty = tp->kbd->tty = 0;
+ tty->driver_data = NULL;
+ tp->tty = tp->kbd->tty = NULL;
raw3270_put_view(&tp->view);
}
}
* Check for visible/invisible input switches
*/
static void
-tty3270_set_termios(struct tty_struct *tty, struct termios *old)
+tty3270_set_termios(struct tty_struct *tty, struct ktermios *old)
{
struct tty3270 *tp;
int new;
new = L_ECHO(tty) ? TF_INPUT: TF_INPUTN;
if (new != tp->inattr) {
tp->inattr = new;
- tty3270_update_prompt(tp, 0, 0);
+ tty3270_update_prompt(tp, NULL, 0);
tty3270_set_timer(tp, 1);
}
}
return kbd_ioctl(tp->kbd, file, cmd, arg);
}
-static struct tty_operations tty3270_ops = {
+static const struct tty_operations tty3270_ops = {
.open = tty3270_open,
.close = tty3270_close,
.write = tty3270_write,
tty3270_notifier(int index, int active)
{
if (active)
- tty_register_device(tty3270_driver, index, 0);
+ tty_register_device(tty3270_driver, index, NULL);
else
tty_unregister_device(tty3270_driver, index);
}
struct tty_driver *driver;
int ret;
- driver = alloc_tty_driver(256);
+ driver = alloc_tty_driver(RAW3270_MAXDEVS);
if (!driver)
return -ENOMEM;
* proc_entry, set_termios, flush_buffer, set_ldisc, write_proc
*/
driver->owner = THIS_MODULE;
- driver->devfs_name = "ttyTUB/";
driver->driver_name = "ttyTUB";
driver->name = "ttyTUB";
driver->major = IBM_TTY3270_MAJOR;
+ driver->minor_start = RAW3270_FIRSTMINOR;
driver->type = TTY_DRIVER_TYPE_SYSTEM;
driver->subtype = SYSTEM_TYPE_TTY;
driver->init_termios = tty_std_termios;
- driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_NO_DEVFS;
+ driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(driver, &tty3270_ops);
ret = tty_register_driver(driver);
if (ret) {
raw3270_unregister_notifier(tty3270_notifier);
driver = tty3270_driver;
- tty3270_driver = 0;
+ tty3270_driver = NULL;
tty_unregister_driver(driver);
tty3270_del_views();
}