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-rw-r--r--linux/drivers/media/dvb/dvb-core/dvb_frontend.c43
-rw-r--r--linux/drivers/media/dvb/dvb-core/dvbdev.c3
-rw-r--r--linux/drivers/media/dvb/dvb-core/dvbdev.h4
-rw-r--r--linux/drivers/media/video/cx23885/cx23885-dvb.c2
-rw-r--r--linux/drivers/media/video/cx88/cx88-dvb.c11
-rw-r--r--linux/drivers/media/video/saa7134/saa7134-dvb.c2
-rw-r--r--linux/drivers/media/video/videobuf-dvb.c9
-rw-r--r--linux/include/media/videobuf-dvb.h6
8 files changed, 65 insertions, 15 deletions
diff --git a/linux/drivers/media/dvb/dvb-core/dvb_frontend.c b/linux/drivers/media/dvb/dvb-core/dvb_frontend.c
index 548d90143..46765bc09 100644
--- a/linux/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/linux/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -52,6 +52,7 @@ static int dvb_shutdown_timeout;
static int dvb_force_auto_inversion;
static int dvb_override_tune_delay;
static int dvb_powerdown_on_sleep = 1;
+static int dvb_mfe_wait_time = 5;
module_param_named(frontend_debug, dvb_frontend_debug, int, 0644);
MODULE_PARM_DESC(frontend_debug, "Turn on/off frontend core debugging (default:off).");
@@ -63,6 +64,8 @@ module_param(dvb_override_tune_delay, int, 0644);
MODULE_PARM_DESC(dvb_override_tune_delay, "0: normal (default), >0 => delay in milliseconds to wait for lock after a tune attempt");
module_param(dvb_powerdown_on_sleep, int, 0644);
MODULE_PARM_DESC(dvb_powerdown_on_sleep, "0: do not power down, 1: turn LNB voltage off on sleep (default)");
+module_param(dvb_mfe_wait_time, int, 0644);
+MODULE_PARM_DESC(dvb_mfe_wait_time, "Wait up to <mfe_wait_time> seconds on open() for multi-frontend to become available (default:5 seconds)");
#define dprintk if (dvb_frontend_debug) printk
@@ -1820,13 +1823,46 @@ static int dvb_frontend_open(struct inode *inode, struct file *file)
struct dvb_device *dvbdev = file->private_data;
struct dvb_frontend *fe = dvbdev->priv;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
+ struct dvb_adapter *adapter = fe->dvb;
+ struct dvb_device *mfedev;
+ struct dvb_frontend *mfe;
+ struct dvb_frontend_private *mfepriv;
+ int mferetry;
int ret;
dprintk ("%s\n", __func__);
+ if (adapter->mfe_shared) {
+ mutex_lock (&adapter->mfe_lock);
+ if (adapter->mfe_dvbdev != dvbdev) {
+ if (adapter->mfe_dvbdev) {
+ mfedev = adapter->mfe_dvbdev;
+ mfe = mfedev->priv;
+ mfepriv = mfe->frontend_priv;
+ mutex_unlock (&adapter->mfe_lock);
+ mferetry = (dvb_mfe_wait_time << 1);
+ while (mferetry-- && (mfedev->users != -1 || mfepriv->thread != NULL)) {
+ if(msleep_interruptible(500)) {
+ if(signal_pending(current))
+ return -EINTR;
+ }
+ }
+ mutex_lock (&adapter->mfe_lock);
+ mfedev = adapter->mfe_dvbdev;
+ mfe = mfedev->priv;
+ mfepriv = mfe->frontend_priv;
+ if (mfedev->users != -1 || mfepriv->thread != NULL) {
+ ret = -EBUSY;
+ goto err0;
+ }
+ }
+ adapter->mfe_dvbdev = dvbdev;
+ }
+ }
+
if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) {
if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0)
- return ret;
+ goto err0;
}
if ((ret = dvb_generic_open (inode, file)) < 0)
@@ -1846,6 +1882,8 @@ static int dvb_frontend_open(struct inode *inode, struct file *file)
fepriv->events.eventr = fepriv->events.eventw = 0;
}
+ if (adapter->mfe_shared)
+ mutex_unlock (&adapter->mfe_lock);
return ret;
err2:
@@ -1853,6 +1891,9 @@ err2:
err1:
if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl)
fe->ops.ts_bus_ctrl(fe, 0);
+err0:
+ if (adapter->mfe_shared)
+ mutex_unlock (&adapter->mfe_lock);
return ret;
}
diff --git a/linux/drivers/media/dvb/dvb-core/dvbdev.c b/linux/drivers/media/dvb/dvb-core/dvbdev.c
index 0820da504..422af5a0d 100644
--- a/linux/drivers/media/dvb/dvb-core/dvbdev.c
+++ b/linux/drivers/media/dvb/dvb-core/dvbdev.c
@@ -341,6 +341,9 @@ int dvb_register_adapter(struct dvb_adapter *adap, const char *name,
adap->name = name;
adap->module = module;
adap->device = device;
+ adap->mfe_shared = 0;
+ adap->mfe_dvbdev = NULL;
+ mutex_init (&adap->mfe_lock);
list_add_tail (&adap->list_head, &dvb_adapter_list);
diff --git a/linux/drivers/media/dvb/dvb-core/dvbdev.h b/linux/drivers/media/dvb/dvb-core/dvbdev.h
index 89d12dc47..574e336ba 100644
--- a/linux/drivers/media/dvb/dvb-core/dvbdev.h
+++ b/linux/drivers/media/dvb/dvb-core/dvbdev.h
@@ -62,6 +62,10 @@ struct dvb_adapter {
struct device *device;
struct module *module;
+
+ int mfe_shared; /* indicates mutually exclusive frontends */
+ struct dvb_device *mfe_dvbdev; /* frontend device in use */
+ struct mutex mfe_lock; /* access lock for thread creation */
};
diff --git a/linux/drivers/media/video/cx23885/cx23885-dvb.c b/linux/drivers/media/video/cx23885/cx23885-dvb.c
index f67493472..5f32c1550 100644
--- a/linux/drivers/media/video/cx23885/cx23885-dvb.c
+++ b/linux/drivers/media/video/cx23885/cx23885-dvb.c
@@ -557,7 +557,7 @@ static int dvb_register(struct cx23885_tsport *port)
/* register everything */
return videobuf_dvb_register_bus(&port->frontends, THIS_MODULE, port,
- &dev->pci->dev, adapter_nr);
+ &dev->pci->dev, adapter_nr, 0);
}
diff --git a/linux/drivers/media/video/cx88/cx88-dvb.c b/linux/drivers/media/video/cx88/cx88-dvb.c
index a2b91e41f..19699f816 100644
--- a/linux/drivers/media/video/cx88/cx88-dvb.c
+++ b/linux/drivers/media/video/cx88/cx88-dvb.c
@@ -601,14 +601,9 @@ static struct stv0288_config tevii_tuner_earda_config = {
static int dvb_register(struct cx8802_dev *dev)
{
- //struct cx88_core *core = dev->core;
-
- ///* init struct videobuf_dvb */
- //fe->dvb.name = core->name;
- //dev->ts_gen_cntrl = 0x0c;
-
struct cx88_core *core = dev->core;
struct videobuf_dvb_frontend *fe0, *fe1 = NULL;
+ int mfe_shared = 0; /* bus not shared by default */
/* Get the first frontend */
fe0 = videobuf_dvb_get_frontend(&dev->frontends, 1);
@@ -676,6 +671,7 @@ static int dvb_register(struct cx8802_dev *dev)
fe1 = videobuf_dvb_get_frontend(&dev->frontends, 2);
if (fe1) {
dev->frontends.gate = 2;
+ mfe_shared = 1;
fe1->dvb.frontend = dvb_attach(cx22702_attach,
&hauppauge_hvr_config,
&dev->core->i2c_adap);
@@ -1020,6 +1016,7 @@ static int dvb_register(struct cx8802_dev *dev)
fe1 = videobuf_dvb_get_frontend(&dev->frontends, 2);
if (fe1) {
dev->frontends.gate = 2;
+ mfe_shared = 1;
fe1->dvb.frontend = dvb_attach(cx22702_attach,
&hauppauge_hvr_config,
&dev->core->i2c_adap);
@@ -1117,7 +1114,7 @@ static int dvb_register(struct cx8802_dev *dev)
/* register everything */
return videobuf_dvb_register_bus(&dev->frontends, THIS_MODULE, dev,
- &dev->pci->dev, adapter_nr);
+ &dev->pci->dev, adapter_nr, mfe_shared);
frontend_detach:
if (fe0->dvb.frontend) {
diff --git a/linux/drivers/media/video/saa7134/saa7134-dvb.c b/linux/drivers/media/video/saa7134/saa7134-dvb.c
index 7c96e8832..11a7c76bc 100644
--- a/linux/drivers/media/video/saa7134/saa7134-dvb.c
+++ b/linux/drivers/media/video/saa7134/saa7134-dvb.c
@@ -1399,7 +1399,7 @@ static int dvb_init(struct saa7134_dev *dev)
/* register everything else */
ret = videobuf_dvb_register_bus(&dev->frontends, THIS_MODULE, dev,
- &dev->pci->dev, adapter_nr);
+ &dev->pci->dev, adapter_nr, 0);
/* this sequence is necessary to make the tda1004x load its firmware
* and to enter analog mode of hybrid boards
diff --git a/linux/drivers/media/video/videobuf-dvb.c b/linux/drivers/media/video/videobuf-dvb.c
index cf699a8ca..33e2f2b2b 100644
--- a/linux/drivers/media/video/videobuf-dvb.c
+++ b/linux/drivers/media/video/videobuf-dvb.c
@@ -145,7 +145,8 @@ int videobuf_dvb_register_bus(struct videobuf_dvb_frontends *f,
struct module *module,
void *adapter_priv,
struct device *device,
- short *adapter_nr) //NEW
+ short *adapter_nr,
+ int mfe_shared)
{
struct list_head *list, *q;
struct videobuf_dvb_frontend *fe;
@@ -158,7 +159,7 @@ int videobuf_dvb_register_bus(struct videobuf_dvb_frontends *f,
}
/* Bring up the adapter */
- res = videobuf_dvb_register_adapter(f, module, adapter_priv, device, fe->dvb.name, adapter_nr); //NEW
+ res = videobuf_dvb_register_adapter(f, module, adapter_priv, device, fe->dvb.name, adapter_nr, mfe_shared);
if (res < 0) {
printk(KERN_WARNING "videobuf_dvb_register_adapter failed (errno = %d)\n", res);
goto err;
@@ -186,7 +187,8 @@ int videobuf_dvb_register_adapter(struct videobuf_dvb_frontends *fe,
void *adapter_priv,
struct device *device,
char *adapter_name,
- short *adapter_nr) //NEW
+ short *adapter_nr,
+ int mfe_shared)
{
int result;
@@ -199,6 +201,7 @@ int videobuf_dvb_register_adapter(struct videobuf_dvb_frontends *fe,
adapter_name, result);
}
fe->adapter.priv = adapter_priv;
+ fe->adapter.mfe_shared = mfe_shared;
return result;
}
diff --git a/linux/include/media/videobuf-dvb.h b/linux/include/media/videobuf-dvb.h
index 47bc2c5e7..1a401f732 100644
--- a/linux/include/media/videobuf-dvb.h
+++ b/linux/include/media/videobuf-dvb.h
@@ -43,7 +43,8 @@ int videobuf_dvb_register_bus(struct videobuf_dvb_frontends *f,
struct module *module,
void *adapter_priv,
struct device *device,
- short *adapter_nr); //NEW
+ short *adapter_nr,
+ int mfe_shared);
void videobuf_dvb_unregister_bus(struct videobuf_dvb_frontends *f);
@@ -52,7 +53,8 @@ int videobuf_dvb_register_adapter(struct videobuf_dvb_frontends *f,
void *adapter_priv,
struct device *device,
char *adapter_name,
- short *adapter_nr); //NEW
+ short *adapter_nr,
+ int mfe_shared);
int videobuf_dvb_register_frontend(struct dvb_adapter *adapter, struct videobuf_dvb *dvb);
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-21 19:40:53 +0000