diff options
| author | Sven Schnelle <svens@linux.ibm.com> | 2022-11-28 21:53:04 +0300 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2023-01-09 16:33:59 +0300 |
| commit | cbb36313bdb696cfe0874406327b24b403c9e8e0 (patch) | |
| tree | a63bcdd4fce7fd92766374d44d5dcd452585641e /drivers/s390/char/raw3270.c | |
| parent | 91621ba7d7b7274cd44e5ee4942a39a6aae977a0 (diff) | |
| download | linux-cbb36313bdb696cfe0874406327b24b403c9e8e0.tar.xz | |
s390/tty3270: resize terminal when the clear key is pressed
There's no easy way to figure out whether the user has re-connected
to the z/VM session. When the user re-connected with a different geometry
to z/VM, the screen layout is broken. Allow the user to force a resizing
by pressing the Clear Key.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Tested-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'drivers/s390/char/raw3270.c')
| -rw-r--r-- | drivers/s390/char/raw3270.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c index 032244c1dd78..e2d703e8ad48 100644 --- a/drivers/s390/char/raw3270.c +++ b/drivers/s390/char/raw3270.c @@ -465,15 +465,14 @@ static void raw3270_size_device_vm(struct raw3270 *rp) } } -static void raw3270_size_device(struct raw3270 *rp) +static void raw3270_size_device(struct raw3270 *rp, char *init_data) { struct raw3270_ua *uap; /* Got a Query Reply */ - uap = (struct raw3270_ua *) (rp->init_data + 1); + uap = (struct raw3270_ua *)(init_data + 1); /* Paranoia check. */ - if (rp->init_readmod.rc || rp->init_data[0] != 0x88 || - uap->uab.qcode != 0x81) { + if (init_data[0] != 0x88 || uap->uab.qcode != 0x81) { /* Couldn't detect size. Use default model 2. */ rp->model = 2; rp->rows = 24; @@ -534,11 +533,10 @@ static void raw3270_size_device_done(struct raw3270 *rp) schedule_work(&rp->resize_work); } -static void raw3270_read_modified_cb(struct raw3270_request *rq, void *data) +void raw3270_read_modified_cb(struct raw3270_request *rq, void *data) { struct raw3270 *rp = rq->view->dev; - - raw3270_size_device(rp); + raw3270_size_device(rp, data); raw3270_size_device_done(rp); } @@ -554,6 +552,7 @@ static void raw3270_read_modified(struct raw3270 *rp) rp->init_readmod.ccw.count = sizeof(rp->init_data); rp->init_readmod.ccw.cda = (__u32) __pa(rp->init_data); rp->init_readmod.callback = raw3270_read_modified_cb; + rp->init_readmod.callback_data = rp->init_data; rp->state = RAW3270_STATE_READMOD; raw3270_start_irq(&rp->init_view, &rp->init_readmod); } @@ -1287,6 +1286,7 @@ module_init(raw3270_init); module_exit(raw3270_exit); EXPORT_SYMBOL(class3270); +EXPORT_SYMBOL(raw3270_read_modified_cb); EXPORT_SYMBOL(raw3270_request_alloc); EXPORT_SYMBOL(raw3270_request_free); EXPORT_SYMBOL(raw3270_request_reset); |