V4L/DVB (13376): cx-usb: add Mygica D689 DMB-TH USB support

[safe/jmp/linux-2.6] / drivers / media / dvb / dvb-usb / dvb-usb-init.c

diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-init.c b/drivers/media/dvb/dvb-usb/dvb-usb-init.c
index 0dd90d1..e331db8 100644 (file)
--- a/drivers/media/dvb/dvb-usb/dvb-usb-init.c
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-init.c
@@ -24,9 +24,9 @@ MODULE_PARM_DESC(disable_rc_polling, "disable remote control polling (default: 0
 
 static int dvb_usb_force_pid_filter_usage;
 module_param_named(force_pid_filter_usage, dvb_usb_force_pid_filter_usage, int, 0444);
-MODULE_PARM_DESC(disable_rc_polling, "force all dvb-usb-devices to use a PID filter, if any (default: 0).");
+MODULE_PARM_DESC(force_pid_filter_usage, "force all dvb-usb-devices to use a PID filter, if any (default: 0).");
 
-static int dvb_usb_adapter_init(struct dvb_usb_device *d)
+static int dvb_usb_adapter_init(struct dvb_usb_device *d, short *adapter_nrs)
 {
        struct dvb_usb_adapter *adap;
        int ret,n;
@@ -72,7 +72,7 @@ static int dvb_usb_adapter_init(struct dvb_usb_device *d)
                }
 
                if ((ret = dvb_usb_adapter_stream_init(adap)) ||
-                       (ret = dvb_usb_adapter_dvb_init(adap)) ||
+                       (ret = dvb_usb_adapter_dvb_init(adap, adapter_nrs)) ||
                        (ret = dvb_usb_adapter_frontend_init(adap))) {
                        return ret;
                }
@@ -122,7 +122,7 @@ static int dvb_usb_exit(struct dvb_usb_device *d)
        return 0;
 }
 
-static int dvb_usb_init(struct dvb_usb_device *d)
+static int dvb_usb_init(struct dvb_usb_device *d, short *adapter_nums)
 {
        int ret = 0;
 
@@ -136,14 +136,14 @@ static int dvb_usb_init(struct dvb_usb_device *d)
                if (d->priv == NULL) {
                        err("no memory for priv in 'struct dvb_usb_device'");
                        return -ENOMEM;
-       }
+               }
        }
 
 /* check the capabilities and set appropriate variables */
        dvb_usb_device_power_ctrl(d, 1);
 
        if ((ret = dvb_usb_i2c_init(d)) ||
-               (ret = dvb_usb_adapter_init(d))) {
+               (ret = dvb_usb_adapter_init(d, adapter_nums))) {
                dvb_usb_exit(d);
                return ret;
        }
@@ -197,8 +197,13 @@ static struct dvb_usb_device_description * dvb_usb_find_device(struct usb_device
 
 int dvb_usb_device_power_ctrl(struct dvb_usb_device *d, int onoff)
 {
-       if (d->powered == !onoff) {
-               d->powered = onoff;
+       if (onoff)
+               d->powered++;
+       else
+               d->powered--;
+
+       if (d->powered == 0 || (onoff && d->powered == 1)) { // when switching from 1 to 0 or from 0 to 1
+               deb_info("power control: %d\n", onoff);
                if (d->props.power_ctrl)
                        return d->props.power_ctrl(d, onoff);
        }
@@ -208,8 +213,10 @@ int dvb_usb_device_power_ctrl(struct dvb_usb_device *d, int onoff)
 /*
  * USB
  */
-int dvb_usb_device_init(struct usb_interface *intf, struct dvb_usb_device_properties
-               *props, struct module *owner,struct dvb_usb_device **du)
+int dvb_usb_device_init(struct usb_interface *intf,
+                       struct dvb_usb_device_properties *props,
+                       struct module *owner, struct dvb_usb_device **du,
+                       short *adapter_nums)
 {
        struct usb_device *udev = interface_to_usbdev(intf);
        struct dvb_usb_device *d = NULL;
@@ -249,7 +256,7 @@ int dvb_usb_device_init(struct usb_interface *intf, struct dvb_usb_device_proper
        if (du != NULL)
                *du = d;
 
-       ret = dvb_usb_init(d);
+       ret = dvb_usb_init(d, adapter_nums);
 
        if (ret == 0)
                info("%s successfully initialized and connected.",desc->name);