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cdev: implement KDSKBMODE/KDGKBMODE ioctls

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These ioctls change/retrieve the keyboard mode. We only support K_UNICODE,
K_RAW and K_OFF. Even K_RAW isn't supported fully as it is unclear what it
is supposed to do.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This commit is contained in:
David Herrmann 2012-10-29 21:08:15 +01:00
parent 9573302e26
commit f448fdb3f8
1 changed files with 36 additions and 2 deletions
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38
src/kmscon_cdev.c
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@ -88,6 +88,7 @@ struct cdev_client {
struct shl_dlist readers;
long kdmode;
long kbmode;
};
struct cdev_reader {
@ -229,6 +230,10 @@ static void client_input_event(struct uterm_input *input,
if (!client->active || ev->handled)
return;
/* we drop all input in K_OFF mode */
if (client->kbmode == K_OFF)
return;
/* TODO: see kmscon_terminal on how this is special. We need to fix this
* when xkbcommon provides the first multi-sym events. */
if (ev->num_syms > 1)
@ -296,6 +301,7 @@ static int client_new(struct cdev_client **out, struct kmscon_cdev *cdev)
memset(client, 0, sizeof(*client));
client->cdev = cdev;
client->kdmode = KD_TEXT;
client->kbmode = K_UNICODE;
shl_dlist_init(&client->readers);
log_debug("new fake TTY client %p", client);
@ -559,6 +565,34 @@ static void ioctl_KDSETMODE(struct cdev_client *client, fuse_req_t req,
}
}
static void ioctl_KDGKBMODE(struct cdev_client *client, fuse_req_t req)
{
fuse_reply_ioctl(req, 0, &client->kbmode, sizeof(long));
}
static void ioctl_KDSKBMODE(struct cdev_client *client, fuse_req_t req,
long val)
{
switch (val) {
case K_RAW:
case K_UNICODE:
case K_OFF:
/* TODO: we handle K_RAW/K_UNICODE the same way as it is unclear
* what K_RAW should do? */
client->kbmode = val;
fuse_reply_ioctl(req, 0, NULL, 0);
break;
case K_XLATE:
case K_MEDIUMRAW:
/* TODO: what do these do? */
fuse_reply_err(req, EOPNOTSUPP);
break;
default:
fuse_reply_err(req, EINVAL);
break;
}
}
static bool ioctl_param(fuse_req_t req, void *arg, size_t in_want,
size_t in_have, size_t out_want, size_t out_have)
{
@ -678,13 +712,13 @@ static void ll_ioctl(fuse_req_t req, int cmd, void *arg,
if (ioctl_param(req, arg, 0, in_bufsz,
sizeof(long), out_bufsz))
return;
fuse_reply_err(req, EOPNOTSUPP);
ioctl_KDGKBMODE(client, req);
break;
case KDSKBMODE:
if (ioctl_param(req, arg, sizeof(long), in_bufsz,
0, out_bufsz))
return;
fuse_reply_err(req, EOPNOTSUPP);
ioctl_KDSKBMODE(client, req, *(long*)in_buf);
break;
case TCGETS:
if (ioctl_param(req, arg, 0, in_bufsz,