cdev: implement KDSETMODE/KDGETMODE ioctl stubs

These ioctls are used to change from TEXT to GRAPHICS mode. We currently
do not support GRAPHICS mode correctly, but this will be added later.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>

diff --git a/src/kmscon_cdev.c b/src/kmscon_cdev.c
index 9e25c10..e674cc6 100644 (file)
--- a/src/kmscon_cdev.c
+++ b/src/kmscon_cdev.c
@@ -86,6 +86,8 @@ struct cdev_client {
        struct fuse_pollhandle *ph;
        struct shl_ring *ring;
        struct shl_dlist readers;
+
+       long kdmode;
 };
 
 struct cdev_reader {
@@ -293,6 +295,7 @@ static int client_new(struct cdev_client **out, struct kmscon_cdev *cdev)
                return -ENOMEM;
        memset(client, 0, sizeof(*client));
        client->cdev = cdev;
+       client->kdmode = KD_TEXT;
        shl_dlist_init(&client->readers);
 
        log_debug("new fake TTY client %p", client);
@@ -535,6 +538,27 @@ static void ioctl_TCFLSH(struct cdev_client *client, fuse_req_t req, int val)
        fuse_reply_ioctl(req, 0, NULL, 0);
 }
 
+static void ioctl_KDGETMODE(struct cdev_client *client, fuse_req_t req)
+{
+       fuse_reply_ioctl(req, 0, &client->kdmode, sizeof(long));
+}
+
+static void ioctl_KDSETMODE(struct cdev_client *client, fuse_req_t req,
+                           long val)
+{
+       switch (val) {
+       case KD_TEXT:
+       case KD_GRAPHICS:
+               /* TODO: forward this to the current seat */
+               client->kdmode = val;
+               fuse_reply_ioctl(req, 0, NULL, 0);
+               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)
 {
@@ -642,13 +666,13 @@ 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_KDGETMODE(client, req);
                break;
        case KDSETMODE:
                if (ioctl_param(req, arg, sizeof(long), in_bufsz,
                                0, out_bufsz))
                        return;
-               fuse_reply_err(req, EOPNOTSUPP);
+               ioctl_KDSETMODE(client, req, *(long*)in_buf);
                break;
        case KDGKBMODE:
                if (ioctl_param(req, arg, 0, in_bufsz,