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/* dvb-usb-dvb.c is part of the DVB USB library.
*
* Copyright (C) 2004-6 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"
/* does the complete input transfer handling */
static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
{
struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv;
int newfeedcount, ret;
if (adap == NULL)
return -ENODEV;
newfeedcount = adap->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");
usb_urb_kill(&adap->stream);
if (adap->props.streaming_ctrl != NULL) {
ret = adap->props.streaming_ctrl(adap, 0);
if (ret < 0) {
err("error while stopping stream.");
return ret;
}
}
}
adap->feedcount = newfeedcount;
/* activate the pid on the device specific pid_filter */
deb_ts("setting pid (%s): %5d %04x at index %d '%s'\n",adap->pid_filtering ?
"yes" : "no", dvbdmxfeed->pid,dvbdmxfeed->pid,dvbdmxfeed->index,onoff ?
"on" : "off");
if (adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER &&
adap->pid_filtering &&
adap->props.pid_filter != NULL)
adap->props.pid_filter(adap, dvbdmxfeed->index, dvbdmxfeed->pid,onoff);
/* start the feed if this was the first feed and there is still a feed
* for reception.
*/
if (adap->feedcount == onoff && adap->feedcount > 0) {
deb_ts("submitting all URBs\n");
usb_urb_submit(&adap->stream);
deb_ts("controlling pid parser\n");
if (adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER &&
adap->props.caps &
DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF &&
adap->props.pid_filter_ctrl != NULL) {
ret = adap->props.pid_filter_ctrl(adap,
adap->pid_filtering);
if (ret < 0) {
err("could not handle pid_parser");
return ret;
}
}
deb_ts("start feeding\n");
if (adap->props.streaming_ctrl != NULL) {
ret = adap->props.streaming_ctrl(adap, 1);
if (ret < 0) {
err("error while enabling fifo.");
return ret;
}
}
}
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_adapter_dvb_init(struct dvb_usb_adapter *adap, short *adapter_nums)
{
int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name,
adap->dev->owner, &adap->dev->udev->dev,
adapter_nums);
if (ret < 0) {
deb_info("dvb_register_adapter failed: error %d", ret);
goto err;
}
adap->dvb_adap.priv = adap;
adap->dvb_adap.fe_ioctl_override = adap->props.fe_ioctl_override;
if (adap->dev->props.read_mac_address) {
if (adap->dev->props.read_mac_address(adap->dev,adap->dvb_adap.proposed_mac) == 0)
info("MAC address: %pM",adap->dvb_adap.proposed_mac);
else
err("MAC address reading failed.");
}
adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
adap->demux.priv = adap;
adap->demux.feednum = adap->demux.filternum = adap->max_feed_count;
adap->demux.start_feed = dvb_usb_start_feed;
adap->demux.stop_feed = dvb_usb_stop_feed;
adap->demux.write_to_decoder = NULL;
if ((ret = dvb_dmx_init(&adap->demux)) < 0) {
err("dvb_dmx_init failed: error %d",ret);
goto err_dmx;
}
adap->dmxdev.filternum = adap->demux.filternum;
adap->dmxdev.demux = &adap->demux.dmx;
adap->dmxdev.capabilities = 0;
if ((ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap)) < 0) {
err("dvb_dmxdev_init failed: error %d",ret);
goto err_dmx_dev;
}
dvb_net_init(&adap->dvb_adap, &adap->dvb_net, &adap->demux.dmx);
adap->state |= DVB_USB_ADAP_STATE_DVB;
return 0;
err_dmx_dev:
dvb_dmx_release(&adap->demux);
err_dmx:
dvb_unregister_adapter(&adap->dvb_adap);
err:
return ret;
}
int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap)
{
if (adap->state & DVB_USB_ADAP_STATE_DVB) {
deb_info("unregistering DVB part\n");
dvb_net_release(&adap->dvb_net);
adap->demux.dmx.close(&adap->demux.dmx);
dvb_dmxdev_release(&adap->dmxdev);
dvb_dmx_release(&adap->demux);
dvb_unregister_adapter(&adap->dvb_adap);
adap->state &= ~DVB_USB_ADAP_STATE_DVB;
}
return 0;
}
static int dvb_usb_fe_wakeup(struct dvb_frontend *fe)
{
struct dvb_usb_adapter *adap = fe->dvb->priv;
dvb_usb_device_power_ctrl(adap->dev, 1);
if (adap->fe_init)
adap->fe_init(fe);
return 0;
}
static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
{
struct dvb_usb_adapter *adap = fe->dvb->priv;
if (adap->fe_sleep)
adap->fe_sleep(fe);
return dvb_usb_device_power_ctrl(adap->dev, 0);
}
int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap)
{
if (adap->props.frontend_attach == NULL) {
err("strange: '%s' #%d doesn't want to attach a frontend.",adap->dev->desc->name, adap->id);
return 0;
}
/* re-assign sleep and wakeup functions */
if (adap->props.frontend_attach(adap) == 0 && adap->fe != NULL) {
adap->fe_init = adap->fe->ops.init; adap->fe->ops.init = dvb_usb_fe_wakeup;
adap->fe_sleep = adap->fe->ops.sleep; adap->fe->ops.sleep = dvb_usb_fe_sleep;
if (dvb_register_frontend(&adap->dvb_adap, adap->fe)) {
err("Frontend registration failed.");
dvb_frontend_detach(adap->fe);
adap->fe = NULL;
return -ENODEV;
}
/* only attach the tuner if the demod is there */
if (adap->props.tuner_attach != NULL)
adap->props.tuner_attach(adap);
} else
err("no frontend was attached by '%s'",adap->dev->desc->name);
return 0;
}
int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap)
{
if (adap->fe != NULL) {
dvb_unregister_frontend(adap->fe);
dvb_frontend_detach(adap->fe);
}
return 0;
}
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