V4L/DVB (9004): S2API: Implement GET/SET handing to the demods

The frontends will be notified (if they chose) of all _get and _set commands
so they can help determine result or action. Results are now returned
to userspace correctly.

Signed-off-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 2ed7484..8bc3c08 100644 (file)
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -1104,6 +1104,13 @@ int dtv_property_process_get(struct dvb_frontend *fe, struct dtv_property *tvp,
 
        dtv_property_dump(tvp);
 
+       /* Allow the frontend to validate incoming properties */
+       if (fe->ops.get_property)
+               r = fe->ops.get_property(fe, tvp);
+
+       if (r < 0)
+               return r;
+
        switch(tvp->cmd) {
        case DTV_FREQUENCY:
                tvp->u.data = fe->dtv_property_cache.frequency;
@@ -1188,6 +1195,13 @@ int dtv_property_process_set(struct dvb_frontend *fe, struct dtv_property *tvp,
        printk("%s()\n", __FUNCTION__);
        dtv_property_dump(tvp);
 
+       /* Allow the frontend to validate incoming properties */
+       if (fe->ops.set_property)
+               r = fe->ops.set_property(fe, tvp);
+
+       if (r < 0)
+               return r;
+
        switch(tvp->cmd) {
        case DTV_CLEAR:
                /* Reset a cache of data specific to the frontend here. This does
@@ -1331,12 +1345,12 @@ static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file,
                }
 
                for (i = 0; i < tvps->num; i++)
-                       dtv_property_process_set(fe, tvp + i, inode, file);
+                       err |= dtv_property_process_set(fe, tvp + i, inode, file);
 
                if(fe->dtv_property_cache.state == DTV_TUNE) {
                        printk("%s() Property cache is full, tuning\n", __FUNCTION__);
                }
-               err = 0;
+
        } else
        if(cmd == FE_GET_PROPERTY) {
                printk("%s() FE_GET_PROPERTY\n", __FUNCTION__);
@@ -1364,14 +1378,13 @@ static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file,
                }
 
                for (i = 0; i < tvps->num; i++)
-                       dtv_property_process_get(fe, tvp + i, inode, file);
+                       err |= dtv_property_process_get(fe, tvp + i, inode, file);
 
                if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) {
                        err = -EFAULT;
                        goto out;
                }
 
-               err = 0;
        } else
                err = -EOPNOTSUPP;
 

diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.h b/drivers/media/dvb/dvb-core/dvb_frontend.h
index 1c20909..784e8fe 100644 (file)
--- a/drivers/media/dvb/dvb-core/dvb_frontend.h
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.h
@@ -172,7 +172,6 @@ struct dvb_frontend_ops {
 
        int (*set_property)(struct dvb_frontend* fe, struct dtv_property* tvp);
        int (*get_property)(struct dvb_frontend* fe, struct dtv_property* tvp);
-       int (*set_params)(struct dvb_frontend* fe);
 };
 
 #define MAX_EVENT 8

diff --git a/drivers/media/dvb/frontends/cx24116.c b/drivers/media/dvb/frontends/cx24116.c
index 9f93930..0ac2c54 100644 (file)
--- a/drivers/media/dvb/frontends/cx24116.c
+++ b/drivers/media/dvb/frontends/cx24116.c
@@ -802,9 +802,9 @@ static int cx24116_set_property(struct dvb_frontend *fe, struct dtv_property* tv
        return 0;
 }
 
-static int cx24116_set_params(struct dvb_frontend *fe)
+static int cx24116_get_property(struct dvb_frontend *fe, struct dtv_property* tvp)
 {
-       dprintk("%s(..) We were notified that a tune request may occur\n", __func__);
+       dprintk("%s(..)\n", __func__);
        return 0;
 }
 
@@ -964,7 +964,7 @@ static struct dvb_frontend_ops cx24116_ops = {
        .diseqc_send_burst = cx24116_diseqc_send_burst,
 
        .set_property = cx24116_set_property,
-       .set_params = cx24116_set_params,
+       .get_property = cx24116_get_property,
        .set_frontend = cx24116_set_frontend,
 };