/* dvb-usb-dvb.c is part of the DVB USB library. * * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.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" #include <media/media-device.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); } static int dvb_usb_media_device_init(struct dvb_usb_adapter *adap) { #ifdef CONFIG_MEDIA_CONTROLLER_DVB struct media_device *mdev; struct dvb_usb_device *d = adap->dev; struct usb_device *udev = d->udev; mdev = kzalloc(sizeof(*mdev), GFP_KERNEL); if (!mdev) return -ENOMEM; media_device_usb_init(mdev, udev, d->desc->name); dvb_register_media_controller(&adap->dvb_adap, mdev); dev_info(&d->udev->dev, "media controller created\n"); #endif return 0; } static int dvb_usb_media_device_register(struct dvb_usb_adapter *adap) { #ifdef CONFIG_MEDIA_CONTROLLER_DVB return media_device_register(adap->dvb_adap.mdev); #else return 0; #endif } static void dvb_usb_media_device_unregister(struct dvb_usb_adapter *adap) { #ifdef CONFIG_MEDIA_CONTROLLER_DVB if (!adap->dvb_adap.mdev) return; media_device_unregister(adap->dvb_adap.mdev); media_device_cleanup(adap->dvb_adap.mdev); kfree(adap->dvb_adap.mdev); adap->dvb_adap.mdev = NULL; #endif } 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; ret = dvb_usb_media_device_init(adap); if (ret < 0) { deb_info("dvb_usb_media_device_init failed: error %d", ret); goto err_mc; } 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_usb_media_device_unregister(adap); err_mc: 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_usb_media_device_unregister(adap); 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++; } ret = dvb_create_media_graph(&adap->dvb_adap, true); if (ret) return ret; ret = dvb_usb_media_device_register(adap); return ret; } 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; }