mirror of
https://github.com/DigitalDevices/dddvb.git
synced 2023-10-10 13:37:43 +02:00
move dvb_netstream to ddbridge
This commit is contained in:
Ralph Metzler
parent
3422b8d138
commit
11bd28ea82
259
ddbridge/dvb_netstream.c
Normal file
259
ddbridge/dvb_netstream.c
Normal file
@ -0,0 +1,259 @@
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/*
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* dvb_netstream.c: support for DVB to network streaming hardware
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*
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* Copyright (C) 2012-2013 Marcus and Ralph Metzler
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* for Digital Devices GmbH
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 only, as published by the Free Software Foundation.
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*
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
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*/
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#include <linux/net.h>
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#include "dvb_netstream.h"
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static ssize_t ns_write(struct file *file, const char *buf,
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size_t count, loff_t *ppos)
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{
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pr_info("%s\n", __func__);
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return 0;
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}
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static ssize_t ns_read(struct file *file, char *buf,
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size_t count, loff_t *ppos)
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{
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pr_info("%s\n", __func__);
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return 0;
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}
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static unsigned int ns_poll(struct file *file, poll_table *wait)
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{
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pr_info("%s\n", __func__);
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return 0;
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}
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static int ns_stop(struct dvbnss *nss)
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{
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struct dvb_netstream *ns = nss->ns;
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mutex_lock(&ns->mutex);
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if (nss->running && ns->stop) {
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ns->stop(nss);
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nss->running = 0;
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}
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mutex_unlock(&ns->mutex);
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return 0;
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}
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static int ns_release(struct inode *inode, struct file *file)
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{
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struct dvbnss *nss = file->private_data;
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struct dvb_netstream *ns = nss->ns;
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ns_stop(nss);
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if (ns->free)
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ns->free(nss);
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mutex_lock(&ns->mutex);
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list_del(&nss->nssl);
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mutex_unlock(&ns->mutex);
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vfree(nss);
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return 0;
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}
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static int ns_open(struct inode *inode, struct file *file)
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{
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struct dvb_device *dvbdev = file->private_data;
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struct dvb_netstream *ns = dvbdev->priv;
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struct dvbnss *nss;
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nss = vmalloc(sizeof(*nss));
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if (!nss)
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return -ENOMEM;
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nss->ns = ns;
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if (ns->alloc && ns->alloc(nss) < 0) {
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vfree(nss);
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return -EBUSY;
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}
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file->private_data = nss;
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nss->running = 0;
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mutex_lock(&ns->mutex);
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list_add(&nss->nssl, &ns->nssl);
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mutex_unlock(&ns->mutex);
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return 0;
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}
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static int set_net(struct dvbnss *nss, struct dvb_ns_params *p)
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{
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return 0;
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}
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static int do_ioctl(struct file *file, unsigned int cmd, void *parg)
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{
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struct dvbnss *nss = file->private_data;
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struct dvb_netstream *ns = nss->ns;
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/*unsigned long arg = (unsigned long) parg;*/
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int ret = 0;
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switch (cmd) {
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case NS_SET_RTCP_MSG:
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{
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struct dvb_ns_rtcp *rtcpm = parg;
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if (ns->set_rtcp_msg)
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ret = ns->set_rtcp_msg(nss, rtcpm->msg, rtcpm->len);
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break;
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}
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case NS_SET_NET:
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memcpy(&nss->params, parg, sizeof(nss->params));
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if (ns->set_net)
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ret = ns->set_net(nss);
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else
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ret = set_net(nss, (struct dvb_ns_params *) parg);
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break;
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case NS_START:
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mutex_lock(&ns->mutex);
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if (nss->running) {
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ret = -EBUSY;
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} else if (ns->start) {
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ret = ns->start(nss);
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nss->running = 1;
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}
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mutex_unlock(&ns->mutex);
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break;
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case NS_STOP:
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ns_stop(nss);
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break;
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case NS_SET_PACKETS:
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{
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struct dvb_ns_packet *packet = parg;
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if (ns->set_ts_packets)
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ret = ns->set_ts_packets(nss, packet->buf,
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packet->count * 188);
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break;
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}
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case NS_INSERT_PACKETS:
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{
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u8 count = *(u8 *) parg;
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if (ns->insert_ts_packets)
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ret = ns->insert_ts_packets(nss, count);
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break;
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}
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case NS_SET_PID:
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{
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u16 pid = *(u16 *) parg;
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u16 byte = (pid & 0x1fff) >> 3;
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u8 bit = 1 << (pid & 7);
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if (pid & 0x2000) {
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if (pid & 0x8000)
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memset(nss->pids, 0xff, 0x400);
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else
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memset(nss->pids, 0x00, 0x400);
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} else {
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if (pid & 0x8000)
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nss->pids[byte] |= bit;
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else
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nss->pids[byte] &= ~bit;
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}
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if (ns->set_pid)
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ret = ns->set_pid(nss, pid);
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break;
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}
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case NS_SET_PIDS:
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ret = copy_from_user(nss->pids, *(u8 **) parg, 0x400);
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if (ret < 0)
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return ret;
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if (ns->set_pids)
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ret = ns->set_pids(nss);
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break;
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case NS_SET_CI:
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{
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u8 ci = *(u8 *) parg;
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if (nss->running)
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ret = -EBUSY;
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else if (ns->set_ci)
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ret = ns->set_ci(nss, ci);
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break;
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}
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default:
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ret = -EINVAL;
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break;
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}
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return ret;
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}
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static long ns_ioctl(struct file *file,
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unsigned int cmd, unsigned long arg)
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{
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return dvb_usercopy(file, cmd, arg, do_ioctl);
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}
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static const struct file_operations ns_fops = {
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.owner = THIS_MODULE,
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.read = ns_read,
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.write = ns_write,
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.open = ns_open,
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.release = ns_release,
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.poll = ns_poll,
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.mmap = 0,
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.unlocked_ioctl = ns_ioctl,
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};
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static struct dvb_device ns_dev = {
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.priv = 0,
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.readers = 1,
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.writers = 1,
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.users = 1,
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.fops = &ns_fops,
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};
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int dvb_netstream_init(struct dvb_adapter *dvb_adapter,
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struct dvb_netstream *ns)
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{
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mutex_init(&ns->mutex);
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spin_lock_init(&ns->lock);
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ns->exit = 0;
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dvb_register_device(dvb_adapter, &ns->dvbdev, &ns_dev, ns,
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DVB_DEVICE_NS, 0);
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INIT_LIST_HEAD(&ns->nssl);
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return 0;
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}
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//EXPORT_SYMBOL(dvb_netstream_init);
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void dvb_netstream_release(struct dvb_netstream *ns)
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{
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ns->exit = 1;
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if (ns->dvbdev->users > 1) {
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wait_event(ns->dvbdev->wait_queue,
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ns->dvbdev->users == 1);
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}
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dvb_unregister_device(ns->dvbdev);
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}
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//EXPORT_SYMBOL(dvb_netstream_release);
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93
ddbridge/dvb_netstream.h
Normal file
93
ddbridge/dvb_netstream.h
Normal file
@ -0,0 +1,93 @@
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/*
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* dvb_netstream.c: support for DVB to network streaming hardware
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*
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* Copyright (C) 2012-2013 Marcus and Ralph Metzler
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* for Digital Devices GmbH
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 only, as published by the Free Software Foundation.
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*
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
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*/
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#ifndef _DVB_NETSTREAM_H_
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#define _DVB_NETSTREAM_H_
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#include <linux/sched.h>
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#include <linux/spinlock.h>
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#include <linux/slab.h>
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#include <linux/vmalloc.h>
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#include <linux/module.h>
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#include <linux/poll.h>
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#include <linux/ioctl.h>
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#include <linux/wait.h>
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#include <linux/socket.h>
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#include <linux/in.h>
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#include <asm/uaccess.h>
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#include <linux/dvb/ns.h>
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#include "dvbdev.h"
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#define DVBNS_MAXPIDS 32
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struct dvbnss {
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struct dvb_netstream *ns;
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void *priv;
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u8 pids[1024];
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u8 packet[1328];
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u32 pp;
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struct socket *sock;
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struct sockaddr_in sadr;
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u32 sn;
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struct dvb_ns_params params;
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struct list_head nssl;
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int running;
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};
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#define MAX_DVBNSS 32
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struct dvb_netstream {
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void *priv;
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struct mutex mutex;
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spinlock_t lock;
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struct dvb_device *dvbdev;
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int exit;
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struct list_head nssl;
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int (*set_net)(struct dvbnss *);
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int (*set_pid)(struct dvbnss *, u16);
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int (*set_pids)(struct dvbnss *);
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int (*set_ci)(struct dvbnss *, u8);
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int (*set_rtcp_msg)(struct dvbnss *, u8 *, u32);
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int (*set_ts_packets)(struct dvbnss *, u8 *, u32);
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int (*insert_ts_packets)(struct dvbnss *, u8);
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int (*start)(struct dvbnss *);
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int (*stop)(struct dvbnss *);
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int (*alloc)(struct dvbnss *);
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void (*free)(struct dvbnss *);
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};
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void dvb_netstream_release(struct dvb_netstream *);
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int dvb_netstream_init(struct dvb_adapter *, struct dvb_netstream *);
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#endif
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