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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 | /* 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)
if ((ret = adap->props.streaming_ctrl(adap,0)))
err("error while stopping stream.");
}
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)
if (adap->props.pid_filter_ctrl(adap,adap->pid_filtering) < 0)
err("could not handle pid_parser");
deb_ts("start feeding\n");
if (adap->props.streaming_ctrl != NULL)
if (adap->props.streaming_ctrl(adap,1)) {
err("error while enabling fifo.");
return -ENODEV;
}
}
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;
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: %02x:%02x:%02x:%02x:%02x:%02x",adap->dvb_adap.proposed_mac[0],
adap->dvb_adap.proposed_mac[1], adap->dvb_adap.proposed_mac[2],
adap->dvb_adap.proposed_mac[3], adap->dvb_adap.proposed_mac[4],
adap->dvb_adap.proposed_mac[5]);
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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