V4L/DVB (4643): Multi-input patch for DVB-USB device
This patch is the first commit of the Multiple Input Patch for the DVB-USB frame
work.
It changes the DVB-USB-device to be able to have more than one streaming input
(e.g. multiple DVB-T sources) on one device. This is a necessary feature for
the upcoming DiB7700 driven devices.
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-init.c b/drivers/media/dvb/dvb-usb/dvb-usb-init.c
index a1705ec..6babdcd 100644
--- a/drivers/media/dvb/dvb-usb/dvb-usb-init.c
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-init.c
@@ -3,7 +3,7 @@
*
* dvb-usb-init.c
*
- * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
+ * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
@@ -16,21 +16,105 @@
/* debug */
int dvb_usb_debug;
module_param_named(debug,dvb_usb_debug, int, 0644);
-MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,pll=4,ts=8,err=16,rc=32,fw=64 (or-able))." DVB_USB_DEBUG_STATUS);
+MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,pll=4,ts=8,err=16,rc=32,fw=64,mem=128,uxfer=256 (or-able))." DVB_USB_DEBUG_STATUS);
int dvb_usb_disable_rc_polling;
module_param_named(disable_rc_polling, dvb_usb_disable_rc_polling, int, 0644);
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).");
+
+static int dvb_usb_adapter_init(struct dvb_usb_device *d)
+{
+ struct dvb_usb_adapter *adap;
+ int ret,n;
+
+ for (n = 0; n < d->props.num_adapters; n++) {
+ adap = &d->adapter[n];
+ adap->dev = d;
+ adap->id = n;
+
+ memcpy(&adap->props, &d->props.adapter[n], sizeof(struct dvb_usb_adapter_properties));
+
+/* speed - when running at FULL speed we need a HW PID filter */
+ if (d->udev->speed == USB_SPEED_FULL && !(adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER)) {
+ err("This USB2.0 device cannot be run on a USB1.1 port. (it lacks a hardware PID filter)");
+ return -ENODEV;
+ }
+
+ if ((d->udev->speed == USB_SPEED_FULL && adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER) ||
+ (adap->props.caps & DVB_USB_ADAP_NEED_PID_FILTERING)) {
+ info("will use the device's hardware PID filter (table count: %d).",adap->props.pid_filter_count);
+ adap->pid_filtering = 1;
+ adap->max_feed_count = adap->props.pid_filter_count;
+ } else {
+ info("will pass the complete MPEG2 transport stream to the software demuxer.");
+ adap->pid_filtering = 0;
+ adap->max_feed_count = 255;
+ }
+
+ if (!adap->pid_filtering &&
+ dvb_usb_force_pid_filter_usage &&
+ adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER) {
+ info("pid filter enabled by module option.");
+ adap->pid_filtering = 1;
+ adap->max_feed_count = adap->props.pid_filter_count;
+ }
+
+ if (adap->props.size_of_priv > 0) {
+ adap->priv = kzalloc(adap->props.size_of_priv,GFP_KERNEL);
+ if (adap->priv == NULL) {
+ err("no memory for priv for adapter %d.",n);
+ return -ENOMEM;
+ }
+ }
+
+ if ((ret = dvb_usb_adapter_stream_init(adap)) ||
+ (ret = dvb_usb_adapter_dvb_init(adap)) ||
+ (ret = dvb_usb_adapter_frontend_init(adap))) {
+ return ret;
+ }
+
+ d->num_adapters_initialized++;
+ d->state |= DVB_USB_STATE_DVB;
+ }
+
+ /*
+ * when reloading the driver w/o replugging the device
+ * sometimes a timeout occures, this helps
+ */
+ if (d->props.generic_bulk_ctrl_endpoint != 0) {
+ usb_clear_halt(d->udev,usb_sndbulkpipe(d->udev,d->props.generic_bulk_ctrl_endpoint));
+ usb_clear_halt(d->udev,usb_rcvbulkpipe(d->udev,d->props.generic_bulk_ctrl_endpoint));
+ }
+
+ return 0;
+}
+
+static int dvb_usb_adapter_exit(struct dvb_usb_device *d)
+{
+ int n;
+ for (n = 0; n < d->num_adapters_initialized; n++) {
+ dvb_usb_adapter_frontend_exit(&d->adapter[n]);
+ dvb_usb_adapter_dvb_exit(&d->adapter[n]);
+ dvb_usb_adapter_stream_exit(&d->adapter[n]);
+ kfree(d->adapter[n].priv);
+ }
+ d->num_adapters_initialized = 0;
+ d->state &= ~DVB_USB_STATE_DVB;
+ return 0;
+}
+
+
/* general initialization functions */
static int dvb_usb_exit(struct dvb_usb_device *d)
{
deb_info("state before exiting everything: %x\n",d->state);
dvb_usb_remote_exit(d);
- dvb_usb_fe_exit(d);
+ dvb_usb_adapter_exit(d);
dvb_usb_i2c_exit(d);
- dvb_usb_dvb_exit(d);
- dvb_usb_urb_exit(d);
deb_info("state should be zero now: %x\n",d->state);
d->state = DVB_USB_STATE_INIT;
kfree(d->priv);
@@ -47,32 +131,19 @@
d->state = DVB_USB_STATE_INIT;
+ if (d->props.size_of_priv > 0) {
+ d->priv = kzalloc(d->props.size_of_priv,GFP_KERNEL);
+ 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);
-/* speed - when running at FULL speed we need a HW PID filter */
- if (d->udev->speed == USB_SPEED_FULL && !(d->props.caps & DVB_USB_HAS_PID_FILTER)) {
- err("This USB2.0 device cannot be run on a USB1.1 port. (it lacks a hardware PID filter)");
- return -ENODEV;
- }
-
- if ((d->udev->speed == USB_SPEED_FULL && d->props.caps & DVB_USB_HAS_PID_FILTER) ||
- (d->props.caps & DVB_USB_NEED_PID_FILTERING)) {
- info("will use the device's hardware PID filter (table count: %d).",d->props.pid_filter_count);
- d->pid_filtering = 1;
- d->max_feed_count = d->props.pid_filter_count;
- } else {
- info("will pass the complete MPEG2 transport stream to the software demuxer.");
- d->pid_filtering = 0;
- d->max_feed_count = 255;
- }
-
- if (d->props.power_ctrl)
- d->props.power_ctrl(d,1);
-
- if ((ret = dvb_usb_urb_init(d)) ||
- (ret = dvb_usb_dvb_init(d)) ||
- (ret = dvb_usb_i2c_init(d)) ||
- (ret = dvb_usb_fe_init(d))) {
+ if ((ret = dvb_usb_i2c_init(d)) ||
+ (ret = dvb_usb_adapter_init(d))) {
dvb_usb_exit(d);
return ret;
}
@@ -80,14 +151,13 @@
if ((ret = dvb_usb_remote_init(d)))
err("could not initialize remote control.");
- if (d->props.power_ctrl)
- d->props.power_ctrl(d,0);
+ dvb_usb_device_power_ctrl(d, 0);
return 0;
}
/* determine the name and the state of the just found USB device */
-static struct dvb_usb_device_description * dvb_usb_find_device(struct usb_device *udev,struct dvb_usb_properties *props, int *cold)
+static struct dvb_usb_device_description * dvb_usb_find_device(struct usb_device *udev,struct dvb_usb_device_properties *props, int *cold)
{
int i,j;
struct dvb_usb_device_description *desc = NULL;
@@ -125,11 +195,20 @@
return desc;
}
+int dvb_usb_device_power_ctrl(struct dvb_usb_device *d, int onoff)
+{
+ if (d->powered == !onoff) {
+ d->powered = onoff;
+ if (d->props.power_ctrl)
+ return d->props.power_ctrl(d, onoff);
+ }
+ return 0;
+}
+
/*
* USB
*/
-
-int dvb_usb_device_init(struct usb_interface *intf, struct dvb_usb_properties
+int dvb_usb_device_init(struct usb_interface *intf, struct dvb_usb_device_properties
*props, struct module *owner,struct dvb_usb_device **du)
{
struct usb_device *udev = interface_to_usbdev(intf);
@@ -161,19 +240,10 @@
}
d->udev = udev;
- memcpy(&d->props,props,sizeof(struct dvb_usb_properties));
+ memcpy(&d->props,props,sizeof(struct dvb_usb_device_properties));
d->desc = desc;
d->owner = owner;
- if (d->props.size_of_priv > 0) {
- d->priv = kzalloc(d->props.size_of_priv,GFP_KERNEL);
- if (d->priv == NULL) {
- err("no memory for priv in 'struct dvb_usb_device'");
- kfree(d);
- return -ENOMEM;
- }
- }
-
usb_set_intfdata(intf, d);
if (du != NULL)
@@ -204,7 +274,7 @@
}
EXPORT_SYMBOL(dvb_usb_device_exit);
-MODULE_VERSION("0.3");
+MODULE_VERSION("1.0");
MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
MODULE_DESCRIPTION("A library module containing commonly used USB and DVB function USB DVB devices");
MODULE_LICENSE("GPL");