cregit-Linux how code gets into the kernel

Release 4.7 drivers/media/usb/dvb-usb/dvb-usb-urb.c

/* dvb-usb-urb.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 keeps functions for initializing and handling the
 * USB and URB stuff.
 */
#include "dvb-usb-common.h"


int dvb_usb_generic_rw(struct dvb_usb_device *d, u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen, int delay_ms) { int actlen,ret = -ENOMEM; if (!d || wbuf == NULL || wlen == 0) return -EINVAL; if (d->props.generic_bulk_ctrl_endpoint == 0) { err("endpoint for generic control not specified."); return -EINVAL; } if ((ret = mutex_lock_interruptible(&d->usb_mutex))) return ret; deb_xfer(">>> "); debug_dump(wbuf,wlen,deb_xfer); ret = usb_bulk_msg(d->udev,usb_sndbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint), wbuf,wlen,&actlen, 2000); if (ret) err("bulk message failed: %d (%d/%d)",ret,wlen,actlen); else ret = actlen != wlen ? -1 : 0; /* an answer is expected, and no error before */ if (!ret && rbuf && rlen) { if (delay_ms) msleep(delay_ms); ret = usb_bulk_msg(d->udev,usb_rcvbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint_response ? d->props.generic_bulk_ctrl_endpoint_response : d->props.generic_bulk_ctrl_endpoint),rbuf,rlen,&actlen, 2000); if (ret) err("recv bulk message failed: %d",ret); else { deb_xfer("<<< "); debug_dump(rbuf,actlen,deb_xfer); } } mutex_unlock(&d->usb_mutex); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
johannes stezenbachjohannes stezenbach21882.26%116.67%
daniel bluemandaniel blueman176.42%116.67%
patrick boettcherpatrick boettcher145.28%233.33%
michael krufkymichael krufky124.53%116.67%
ingo molnaringo molnar41.51%116.67%
Total265100.00%6100.00%

EXPORT_SYMBOL(dvb_usb_generic_rw);
int dvb_usb_generic_write(struct dvb_usb_device *d, u8 *buf, u16 len) { return dvb_usb_generic_rw(d,buf,len,NULL,0,0); }

Contributors

PersonTokensPropCommitsCommitProp
johannes stezenbachjohannes stezenbach33100.00%1100.00%
Total33100.00%1100.00%

EXPORT_SYMBOL(dvb_usb_generic_write);
static void dvb_usb_data_complete(struct usb_data_stream *stream, u8 *buffer, size_t length) { struct dvb_usb_adapter *adap = stream->user_priv; if (adap->feedcount > 0 && adap->state & DVB_USB_ADAP_STATE_DVB) dvb_dmx_swfilter(&adap->demux, buffer, length); }

Contributors

PersonTokensPropCommitsCommitProp
johannes stezenbachjohannes stezenbach3056.60%133.33%
patrick boettcherpatrick boettcher2343.40%266.67%
Total53100.00%3100.00%


static void dvb_usb_data_complete_204(struct usb_data_stream *stream, u8 *buffer, size_t length) { struct dvb_usb_adapter *adap = stream->user_priv; if (adap->feedcount > 0 && adap->state & DVB_USB_ADAP_STATE_DVB) dvb_dmx_swfilter_204(&adap->demux, buffer, length); }

Contributors

PersonTokensPropCommitsCommitProp
patrick boettcherpatrick boettcher53100.00%1100.00%
Total53100.00%1100.00%


static void dvb_usb_data_complete_raw(struct usb_data_stream *stream, u8 *buffer, size_t length) { struct dvb_usb_adapter *adap = stream->user_priv; if (adap->feedcount > 0 && adap->state & DVB_USB_ADAP_STATE_DVB) dvb_dmx_swfilter_raw(&adap->demux, buffer, length); }

Contributors

PersonTokensPropCommitsCommitProp
michael krufkymichael krufky53100.00%1100.00%
Total53100.00%1100.00%


int dvb_usb_adapter_stream_init(struct dvb_usb_adapter *adap) { int i, ret = 0; for (i = 0; i < adap->props.num_frontends; i++) { adap->fe_adap[i].stream.udev = adap->dev->udev; if (adap->props.fe[i].caps & DVB_USB_ADAP_RECEIVES_204_BYTE_TS) adap->fe_adap[i].stream.complete = dvb_usb_data_complete_204; else if (adap->props.fe[i].caps & DVB_USB_ADAP_RECEIVES_RAW_PAYLOAD) adap->fe_adap[i].stream.complete = dvb_usb_data_complete_raw; else adap->fe_adap[i].stream.complete = dvb_usb_data_complete; adap->fe_adap[i].stream.user_priv = adap; ret = usb_urb_init(&adap->fe_adap[i].stream, &adap->props.fe[i].stream); if (ret < 0) break; } return ret; }

Contributors

PersonTokensPropCommitsCommitProp
michael krufkymichael krufky10258.62%240.00%
patrick boettcherpatrick boettcher5129.31%240.00%
johannes stezenbachjohannes stezenbach2112.07%120.00%
Total174100.00%5100.00%


int dvb_usb_adapter_stream_exit(struct dvb_usb_adapter *adap) { int i; for (i = 0; i < adap->props.num_frontends; i++) usb_urb_exit(&adap->fe_adap[i].stream); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
michael krufkymichael krufky2860.87%125.00%
johannes stezenbachjohannes stezenbach919.57%125.00%
patrick boettcherpatrick boettcher919.57%250.00%
Total46100.00%4100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
johannes stezenbachjohannes stezenbach32446.89%19.09%
michael krufkymichael krufky19528.22%327.27%
patrick boettcherpatrick boettcher15121.85%545.45%
daniel bluemandaniel blueman172.46%19.09%
ingo molnaringo molnar40.58%19.09%
Total691100.00%11100.00%
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