1/* dvb-usb-dvb.c is part of the DVB USB library. 2 * 3 * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de) 4 * see dvb-usb-init.c for copyright information. 5 * 6 * This file contains functions for initializing and handling the 7 * linux-dvb API. 8 */ 9#include "dvb-usb-common.h" 10 11/* does the complete input transfer handling */ 12static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff) 13{ 14 struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv; 15 int newfeedcount,ret; 16 17 if (adap == NULL) 18 return -ENODEV; 19 20 newfeedcount = adap->feedcount + (onoff ? 1 : -1); 21 22 /* stop feed before setting a new pid if there will be no pid anymore */ 23 if (newfeedcount == 0) { 24 deb_ts("stop feeding\n"); 25 usb_urb_kill(&adap->stream); 26 27 if (adap->props.streaming_ctrl != NULL) 28 if ((ret = adap->props.streaming_ctrl(adap,0))) 29 err("error while stopping stream."); 30 } 31 32 adap->feedcount = newfeedcount; 33 34 /* activate the pid on the device specific pid_filter */ 35 deb_ts("setting pid (%s): %5d %04x at index %d '%s'\n",adap->pid_filtering ? 36 "yes" : "no", dvbdmxfeed->pid,dvbdmxfeed->pid,dvbdmxfeed->index,onoff ? 37 "on" : "off"); 38 if (adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER && 39 adap->pid_filtering && 40 adap->props.pid_filter != NULL) 41 adap->props.pid_filter(adap, dvbdmxfeed->index, dvbdmxfeed->pid,onoff); 42 43 /* start the feed if this was the first feed and there is still a feed 44 * for reception. 45 */ 46 if (adap->feedcount == onoff && adap->feedcount > 0) { 47 deb_ts("submitting all URBs\n"); 48 usb_urb_submit(&adap->stream); 49 50 deb_ts("controlling pid parser\n"); 51 if (adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER && 52 adap->props.caps & DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF && 53 adap->props.pid_filter_ctrl != NULL) 54 if (adap->props.pid_filter_ctrl(adap,adap->pid_filtering) < 0) 55 err("could not handle pid_parser"); 56 57 deb_ts("start feeding\n"); 58 if (adap->props.streaming_ctrl != NULL) 59 if (adap->props.streaming_ctrl(adap,1)) { 60 err("error while enabling fifo."); 61 return -ENODEV; 62 } 63 64 } 65 return 0; 66} 67 68static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed) 69{ 70 deb_ts("start pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid,dvbdmxfeed->type); 71 return dvb_usb_ctrl_feed(dvbdmxfeed,1); 72} 73 74static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed) 75{ 76 deb_ts("stop pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid, dvbdmxfeed->type); 77 return dvb_usb_ctrl_feed(dvbdmxfeed,0); 78} 79 80int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap, short *adapter_nums) 81{ 82 int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name, 83 adap->dev->owner, &adap->dev->udev->dev, 84 adapter_nums); 85 86 if (ret < 0) { 87 deb_info("dvb_register_adapter failed: error %d", ret); 88 goto err; 89 } 90 adap->dvb_adap.priv = adap; 91 adap->dvb_adap.fe_ioctl_override = adap->props.fe_ioctl_override; 92 93 if (adap->dev->props.read_mac_address) { 94 if (adap->dev->props.read_mac_address(adap->dev,adap->dvb_adap.proposed_mac) == 0) 95 info("MAC address: %pM",adap->dvb_adap.proposed_mac); 96 else 97 err("MAC address reading failed."); 98 } 99 100 101 adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING; 102 adap->demux.priv = adap; 103 104 adap->demux.feednum = adap->demux.filternum = adap->max_feed_count; 105 adap->demux.start_feed = dvb_usb_start_feed; 106 adap->demux.stop_feed = dvb_usb_stop_feed; 107 adap->demux.write_to_decoder = NULL; 108 if ((ret = dvb_dmx_init(&adap->demux)) < 0) { 109 err("dvb_dmx_init failed: error %d",ret); 110 goto err_dmx; 111 } 112 113 adap->dmxdev.filternum = adap->demux.filternum; 114 adap->dmxdev.demux = &adap->demux.dmx; 115 adap->dmxdev.capabilities = 0; 116 if ((ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap)) < 0) { 117 err("dvb_dmxdev_init failed: error %d",ret); 118 goto err_dmx_dev; 119 } 120 121 dvb_net_init(&adap->dvb_adap, &adap->dvb_net, &adap->demux.dmx); 122 123 adap->state |= DVB_USB_ADAP_STATE_DVB; 124 return 0; 125 126err_dmx_dev: 127 dvb_dmx_release(&adap->demux); 128err_dmx: 129 dvb_unregister_adapter(&adap->dvb_adap); 130err: 131 return ret; 132} 133 134int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap) 135{ 136 if (adap->state & DVB_USB_ADAP_STATE_DVB) { 137 deb_info("unregistering DVB part\n"); 138 dvb_net_release(&adap->dvb_net); 139 adap->demux.dmx.close(&adap->demux.dmx); 140 dvb_dmxdev_release(&adap->dmxdev); 141 dvb_dmx_release(&adap->demux); 142 dvb_unregister_adapter(&adap->dvb_adap); 143 adap->state &= ~DVB_USB_ADAP_STATE_DVB; 144 } 145 return 0; 146} 147 148static int dvb_usb_fe_wakeup(struct dvb_frontend *fe) 149{ 150 struct dvb_usb_adapter *adap = fe->dvb->priv; 151 152 dvb_usb_device_power_ctrl(adap->dev, 1); 153 154 if (adap->fe_init) 155 adap->fe_init(fe); 156 157 return 0; 158} 159 160static int dvb_usb_fe_sleep(struct dvb_frontend *fe) 161{ 162 struct dvb_usb_adapter *adap = fe->dvb->priv; 163 164 if (adap->fe_sleep) 165 adap->fe_sleep(fe); 166 167 return dvb_usb_device_power_ctrl(adap->dev, 0); 168} 169 170int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap) 171{ 172 if (adap->props.frontend_attach == NULL) { 173 err("strange: '%s' #%d doesn't want to attach a frontend.",adap->dev->desc->name, adap->id); 174 return 0; 175 } 176 177 /* re-assign sleep and wakeup functions */ 178 if (adap->props.frontend_attach(adap) == 0 && adap->fe != NULL) { 179 adap->fe_init = adap->fe->ops.init; adap->fe->ops.init = dvb_usb_fe_wakeup; 180 adap->fe_sleep = adap->fe->ops.sleep; adap->fe->ops.sleep = dvb_usb_fe_sleep; 181 182 if (dvb_register_frontend(&adap->dvb_adap, adap->fe)) { 183 err("Frontend registration failed."); 184 dvb_frontend_detach(adap->fe); 185 adap->fe = NULL; 186 return -ENODEV; 187 } 188 189 /* only attach the tuner if the demod is there */ 190 if (adap->props.tuner_attach != NULL) 191 adap->props.tuner_attach(adap); 192 } else 193 err("no frontend was attached by '%s'",adap->dev->desc->name); 194 195 return 0; 196} 197 198int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap) 199{ 200 if (adap->fe != NULL) { 201 dvb_unregister_frontend(adap->fe); 202 dvb_frontend_detach(adap->fe); 203 } 204 return 0; 205} 206