| /* 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; |
| |
| if ((adap->active_fe < 0) || |
| (adap->active_fe >= adap->num_frontends_initialized)) { |
| return -EINVAL; |
| } |
| |
| 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->fe_adap[adap->active_fe].stream); |
| |
| if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) { |
| ret = adap->props.fe[adap->active_fe].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->fe_adap[adap->active_fe].pid_filtering ? |
| "yes" : "no", dvbdmxfeed->pid, dvbdmxfeed->pid, |
| dvbdmxfeed->index, onoff ? "on" : "off"); |
| if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER && |
| adap->fe_adap[adap->active_fe].pid_filtering && |
| adap->props.fe[adap->active_fe].pid_filter != NULL) |
| adap->props.fe[adap->active_fe].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->fe_adap[adap->active_fe].stream); |
| |
| deb_ts("controlling pid parser\n"); |
| if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER && |
| adap->props.fe[adap->active_fe].caps & |
| DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF && |
| adap->props.fe[adap->active_fe].pid_filter_ctrl != NULL) { |
| ret = adap->props.fe[adap->active_fe].pid_filter_ctrl(adap, |
| adap->fe_adap[adap->active_fe].pid_filtering); |
| if (ret < 0) { |
| err("could not handle pid_parser"); |
| return ret; |
| } |
| } |
| deb_ts("start feeding\n"); |
| if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) { |
| ret = adap->props.fe[adap->active_fe].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 i; |
| 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.filternum = 0; |
| for (i = 0; i < adap->props.num_frontends; i++) { |
| if (adap->demux.filternum < adap->fe_adap[i].max_feed_count) |
| adap->demux.filternum = adap->fe_adap[i].max_feed_count; |
| } |
| adap->demux.feednum = adap->demux.filternum; |
| 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; |
| } |
| |
| if ((ret = dvb_net_init(&adap->dvb_adap, &adap->dvb_net, |
| &adap->demux.dmx)) < 0) { |
| err("dvb_net_init failed: error %d",ret); |
| goto err_net_init; |
| } |
| |
| adap->state |= DVB_USB_ADAP_STATE_DVB; |
| return 0; |
| |
| err_net_init: |
| dvb_dmxdev_release(&adap->dmxdev); |
| 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_set_active_fe(struct dvb_frontend *fe, int onoff) |
| { |
| struct dvb_usb_adapter *adap = fe->dvb->priv; |
| |
| int ret = (adap->props.frontend_ctrl) ? |
| adap->props.frontend_ctrl(fe, onoff) : 0; |
| |
| if (ret < 0) { |
| err("frontend_ctrl request failed"); |
| return ret; |
| } |
| if (onoff) |
| adap->active_fe = fe->id; |
| |
| 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); |
| |
| dvb_usb_set_active_fe(fe, 1); |
| |
| if (adap->fe_adap[fe->id].fe_init) |
| adap->fe_adap[fe->id].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_adap[fe->id].fe_sleep) |
| adap->fe_adap[fe->id].fe_sleep(fe); |
| |
| dvb_usb_set_active_fe(fe, 0); |
| |
| return dvb_usb_device_power_ctrl(adap->dev, 0); |
| } |
| |
| int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap) |
| { |
| int ret, i; |
| |
| /* register all given adapter frontends */ |
| for (i = 0; i < adap->props.num_frontends; i++) { |
| |
| if (adap->props.fe[i].frontend_attach == NULL) { |
| err("strange: '%s' #%d,%d " |
| "doesn't want to attach a frontend.", |
| adap->dev->desc->name, adap->id, i); |
| |
| return 0; |
| } |
| |
| ret = adap->props.fe[i].frontend_attach(adap); |
| if (ret || adap->fe_adap[i].fe == NULL) { |
| /* only print error when there is no FE at all */ |
| if (i == 0) |
| err("no frontend was attached by '%s'", |
| adap->dev->desc->name); |
| |
| return 0; |
| } |
| |
| adap->fe_adap[i].fe->id = i; |
| |
| /* re-assign sleep and wakeup functions */ |
| adap->fe_adap[i].fe_init = adap->fe_adap[i].fe->ops.init; |
| adap->fe_adap[i].fe->ops.init = dvb_usb_fe_wakeup; |
| adap->fe_adap[i].fe_sleep = adap->fe_adap[i].fe->ops.sleep; |
| adap->fe_adap[i].fe->ops.sleep = dvb_usb_fe_sleep; |
| |
| if (dvb_register_frontend(&adap->dvb_adap, adap->fe_adap[i].fe)) { |
| err("Frontend %d registration failed.", i); |
| dvb_frontend_detach(adap->fe_adap[i].fe); |
| adap->fe_adap[i].fe = NULL; |
| /* In error case, do not try register more FEs, |
| * still leaving already registered FEs alive. */ |
| if (i == 0) |
| return -ENODEV; |
| else |
| return 0; |
| } |
| |
| /* only attach the tuner if the demod is there */ |
| if (adap->props.fe[i].tuner_attach != NULL) |
| adap->props.fe[i].tuner_attach(adap); |
| |
| adap->num_frontends_initialized++; |
| } |
| |
| return 0; |
| } |
| |
| int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap) |
| { |
| int i = adap->num_frontends_initialized - 1; |
| |
| /* unregister all given adapter frontends */ |
| for (; i >= 0; i--) { |
| if (adap->fe_adap[i].fe != NULL) { |
| dvb_unregister_frontend(adap->fe_adap[i].fe); |
| dvb_frontend_detach(adap->fe_adap[i].fe); |
| } |
| } |
| adap->num_frontends_initialized = 0; |
| |
| return 0; |
| } |