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/* dvb-usb-dvb.c is part of the DVB USB library.
*
* Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
* see dvb-usb-init.c for copyright information.
*
* This file contains functions for initializing and handling the
* linux-dvb API.
*/
#include "dvb-usb-common.h"
static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
{
struct dvb_usb_device *d = dvbdmxfeed->demux->priv;
int newfeedcount,ret;
if (d == NULL)
return -ENODEV;
newfeedcount = d->feedcount + (onoff ? 1 : -1);
/*
* stop feed before setting a new pid if there will be no pid anymore
*/
if (newfeedcount == 0) {
deb_ts("stop feeding\n");
if (d->props.streaming_ctrl != NULL)
if ((ret = d->props.streaming_ctrl(d,0)))
err("error while stopping stream.");
dvb_usb_urb_kill(d);
}
d->feedcount = newfeedcount;
/* activate the pid on the device specific pid_filter */
deb_ts("setting pid: %5d %04x at index %d '%s'\n",dvbdmxfeed->pid,dvbdmxfeed->pid,dvbdmxfeed->index,onoff ? "on" : "off");
if (d->props.caps & DVB_USB_HAS_PID_FILTER &&
d->pid_filtering &&
d->props.pid_filter != NULL)
d->props.pid_filter(d,dvbdmxfeed->index,dvbdmxfeed->pid,onoff);
/* start the feed if this was the first feed and there is still a feed
* for reception.
*/
if (d->feedcount == onoff && d->feedcount > 0) {
deb_ts("controlling pid parser\n");
if (d->props.caps & DVB_USB_HAS_PID_FILTER &&
d->props.caps & DVB_USB_PID_FILTER_CAN_BE_TURNED_OFF &&
d->props.pid_filter_ctrl != NULL)
if (d->props.pid_filter_ctrl(d,d->pid_filtering) < 0)
err("could not handle pid_parser");
deb_ts("start feeding\n");
if (d->props.streaming_ctrl != NULL)
if (d->props.streaming_ctrl(d,1)) {
err("error while enabling fifo.");
return -ENODEV;
}
dvb_usb_urb_submit(d);
}
return 0;
}
static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
{
deb_ts("start pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid,dvbdmxfeed->type);
return dvb_usb_ctrl_feed(dvbdmxfeed,1);
}
static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
{
deb_ts("stop pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid, dvbdmxfeed->type);
return dvb_usb_ctrl_feed(dvbdmxfeed,0);
}
int dvb_usb_dvb_init(struct dvb_usb_device *d)
{
int ret;
if ((ret = dvb_register_adapter(&d->dvb_adap, d->desc->name,
THIS_MODULE)) < 0) {
deb_info("dvb_register_adapter failed: error %d", ret);
goto err;
}
d->dvb_adap.priv = d;
if (d->props.read_mac_address) {
if (d->props.read_mac_address(d,d->dvb_adap.proposed_mac) == 0)
info("MAC address: %02x:%02x:%02x:%02x:%02x:%02x",d->dvb_adap.proposed_mac[0],
d->dvb_adap.proposed_mac[1],d->dvb_adap.proposed_mac[2],
d->dvb_adap.proposed_mac[3],d->dvb_adap.proposed_mac[4],
d->dvb_adap.proposed_mac[5]);
else
err("MAC reading failed.");
}
d->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
d->demux.priv = d;
/* get pidcount from demod */
d->demux.feednum = d->demux.filternum = 255;
d->demux.start_feed = dvb_usb_start_feed;
d->demux.stop_feed = dvb_usb_stop_feed;
d->demux.write_to_decoder = NULL;
if ((ret = dvb_dmx_init(&d->demux)) < 0) {
err("dvb_dmx_init failed: error %d",ret);
goto err_dmx;
}
d->dmxdev.filternum = d->demux.filternum;
d->dmxdev.demux = &d->demux.dmx;
d->dmxdev.capabilities = 0;
if ((ret = dvb_dmxdev_init(&d->dmxdev, &d->dvb_adap)) < 0) {
err("dvb_dmxdev_init failed: error %d",ret);
goto err_dmx_dev;
}
dvb_net_init(&d->dvb_adap, &d->dvb_net, &d->demux.dmx);
goto success;
err_dmx_dev:
dvb_dmx_release(&d->demux);
err_dmx:
dvb_unregister_adapter(&d->dvb_adap);
err:
return ret;
success:
d->init_state |= DVB_USB_STATE_DVB;
return 0;
}
int dvb_usb_dvb_exit(struct dvb_usb_device *d)
{
if (d->init_state & DVB_USB_STATE_DVB) {
d->init_state &= ~DVB_USB_STATE_DVB;
deb_info("unregistering DVB part\n");
dvb_net_release(&d->dvb_net);
d->demux.dmx.close(&d->demux.dmx);
dvb_dmxdev_release(&d->dmxdev);
dvb_dmx_release(&d->demux);
dvb_unregister_adapter(&d->dvb_adap);
}
return 0;
}
static int dvb_usb_fe_wakeup(struct dvb_frontend *fe)
{
struct dvb_usb_device *d = fe->dvb->priv;
if (d->props.power_ctrl)
d->props.power_ctrl(d,1);
if (d->fe_init)
d->fe_init(fe);
return 0;
}
static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
{
struct dvb_usb_device *d = fe->dvb->priv;
if (d->props.power_ctrl)
d->props.power_ctrl(d,0);
if (d->fe_sleep)
d->fe_sleep(fe);
return 0;
}
int dvb_usb_fe_init(struct dvb_usb_device* d)
{
if (d->props.frontend_attach == NULL) {
err("strange '%s' don't want to attach a frontend.",d->desc->name);
return 0;
}
d->props.frontend_attach(d);
/* re-assign sleep and wakeup functions */
if (d->fe != NULL) {
d->fe_init = d->fe->ops->init; d->fe->ops->init = dvb_usb_fe_wakeup;
d->fe_sleep = d->fe->ops->sleep; d->fe->ops->sleep = dvb_usb_fe_sleep;
if (dvb_register_frontend(&d->dvb_adap, d->fe)) {
err("Frontend registration failed.");
if (d->fe->ops->release)
d->fe->ops->release(d->fe);
d->fe = NULL;
return -ENODEV;
}
} else
err("no frontend was attached by '%s'",d->desc->name);
return 0;
}
int dvb_usb_fe_exit(struct dvb_usb_device *d)
{
if (d->fe != NULL)
dvb_unregister_frontend(d->fe);
return 0;
}
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