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path: root/drivers/media/video/cx88/cx88-dvb.c
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Diffstat (limited to 'drivers/media/video/cx88/cx88-dvb.c')
-rw-r--r--drivers/media/video/cx88/cx88-dvb.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/media/video/cx88/cx88-dvb.c b/drivers/media/video/cx88/cx88-dvb.c
index da4dd4913d9..613dfea4ff3 100644
--- a/drivers/media/video/cx88/cx88-dvb.c
+++ b/drivers/media/video/cx88/cx88-dvb.c
@@ -138,6 +138,28 @@ static int cx88_dvb_bus_ctrl(struct dvb_frontend* fe, int acquire)
return ret;
}
+static void cx88_dvb_gate_ctrl(struct cx88_core *core, int open)
+{
+ struct videobuf_dvb_frontends *f;
+ struct videobuf_dvb_frontend *fe;
+
+ if (!core->dvbdev)
+ return;
+
+ f = &core->dvbdev->frontends;
+
+ if (!f)
+ return;
+
+ if (f->gate <= 1) /* undefined or fe0 */
+ fe = videobuf_dvb_get_frontend(f, 1);
+ else
+ fe = videobuf_dvb_get_frontend(f, f->gate);
+
+ if (fe && fe->dvb.frontend && fe->dvb.frontend->ops.i2c_gate_ctrl)
+ fe->dvb.frontend->ops.i2c_gate_ctrl(fe->dvb.frontend, open);
+}
+
/* ------------------------------------------------------------------ */
static int dvico_fusionhdtv_demod_init(struct dvb_frontend* fe)
@@ -597,12 +619,30 @@ static int dvb_register(struct cx8802_dev *dev)
struct cx88_core *core = dev->core;
struct videobuf_dvb_frontend *fe0, *fe1 = NULL;
int mfe_shared = 0; /* bus not shared by default */
+ int i;
if (0 != core->i2c_rc) {
printk(KERN_ERR "%s/2: no i2c-bus available, cannot attach dvb drivers\n", core->name);
goto frontend_detach;
}
+ if (!core->board.num_frontends)
+ return -EINVAL;
+
+ mutex_init(&dev->frontends.lock);
+ INIT_LIST_HEAD(&dev->frontends.felist);
+
+ printk(KERN_INFO "%s() allocating %d frontend(s)\n", __func__,
+ core->board.num_frontends);
+ for (i = 1; i <= core->board.num_frontends; i++) {
+ fe0 = videobuf_dvb_alloc_frontend(&dev->frontends, i);
+ if (!fe0) {
+ printk(KERN_ERR "%s() failed to alloc\n", __func__);
+ videobuf_dvb_dealloc_frontends(&dev->frontends);
+ goto frontend_detach;
+ }
+ }
+
/* Get the first frontend */
fe0 = videobuf_dvb_get_frontend(&dev->frontends, 1);
if (!fe0)
@@ -611,6 +651,9 @@ static int dvb_register(struct cx8802_dev *dev)
/* multi-frontend gate control is undefined or defaults to fe0 */
dev->frontends.gate = 0;
+ /* Sets the gate control callback to be used by i2c command calls */
+ core->gate_ctrl = cx88_dvb_gate_ctrl;
+
/* init frontend(s) */
switch (core->boardnr) {
case CX88_BOARD_HAUPPAUGE_DVB_T1:
@@ -1109,6 +1152,7 @@ static int dvb_register(struct cx8802_dev *dev)
&dev->pci->dev, adapter_nr, mfe_shared);
frontend_detach:
+ core->gate_ctrl = NULL;
videobuf_dvb_dealloc_frontends(&dev->frontends);
return -EINVAL;
}
@@ -1270,6 +1314,8 @@ static int cx8802_dvb_remove(struct cx8802_driver *drv)
vp3054_i2c_remove(dev);
+ core->gate_ctrl = NULL;
+
return 0;
}