diff options
Diffstat (limited to 'drivers/media/dvb/firewire/firedtv-dvb.c')
| -rw-r--r-- | drivers/media/dvb/firewire/firedtv-dvb.c | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/drivers/media/dvb/firewire/firedtv-dvb.c b/drivers/media/dvb/firewire/firedtv-dvb.c new file mode 100644 index 00000000000..1823058696f --- /dev/null +++ b/drivers/media/dvb/firewire/firedtv-dvb.c @@ -0,0 +1,276 @@ +/* + * FireDTV driver (formerly known as FireSAT) + * + * Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com> + * Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/mutex.h> +#include <linux/types.h> + +#include <dvb_demux.h> +#include <dvb_frontend.h> +#include <dvbdev.h> + +#include "avc.h" +#include "firedtv.h" +#include "firedtv-ci.h" + +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + +static struct firedtv_channel *fdtv_channel_allocate(struct firedtv *fdtv) +{ + struct firedtv_channel *c = NULL; + int k; + + if (mutex_lock_interruptible(&fdtv->demux_mutex)) + return NULL; + + for (k = 0; k < 16; k++) + if (!fdtv->channel[k].active) { + fdtv->channel[k].active = true; + c = &fdtv->channel[k]; + break; + } + + mutex_unlock(&fdtv->demux_mutex); + return c; +} + +static int fdtv_channel_collect(struct firedtv *fdtv, int *pidc, u16 pid[]) +{ + int k, l = 0; + + if (mutex_lock_interruptible(&fdtv->demux_mutex)) + return -EINTR; + + for (k = 0; k < 16; k++) + if (fdtv->channel[k].active) + pid[l++] = fdtv->channel[k].pid; + + mutex_unlock(&fdtv->demux_mutex); + + *pidc = l; + + return 0; +} + +static int fdtv_channel_release(struct firedtv *fdtv, + struct firedtv_channel *channel) +{ + if (mutex_lock_interruptible(&fdtv->demux_mutex)) + return -EINTR; + + channel->active = false; + + mutex_unlock(&fdtv->demux_mutex); + return 0; +} + +int fdtv_start_feed(struct dvb_demux_feed *dvbdmxfeed) +{ + struct firedtv *fdtv = (struct firedtv*)dvbdmxfeed->demux->priv; + struct firedtv_channel *channel; + int pidc,k; + u16 pids[16]; + + switch (dvbdmxfeed->type) { + case DMX_TYPE_TS: + case DMX_TYPE_SEC: + break; + default: + printk(KERN_ERR "%s: invalid type %u\n", + __func__, dvbdmxfeed->type); + return -EINVAL; + } + + if (dvbdmxfeed->type == DMX_TYPE_TS) { + switch (dvbdmxfeed->pes_type) { + case DMX_TS_PES_VIDEO: + case DMX_TS_PES_AUDIO: + case DMX_TS_PES_TELETEXT: + case DMX_TS_PES_PCR: + case DMX_TS_PES_OTHER: + //Dirty fix to keep fdtv->channel pid-list up to date + for(k=0;k<16;k++){ + if (!fdtv->channel[k].active) + fdtv->channel[k].pid = + dvbdmxfeed->pid; + break; + } + channel = fdtv_channel_allocate(fdtv); + break; + default: + printk(KERN_ERR "%s: invalid pes type %u\n", + __func__, dvbdmxfeed->pes_type); + return -EINVAL; + } + } else { + channel = fdtv_channel_allocate(fdtv); + } + + if (!channel) { + printk(KERN_ERR "%s: busy!\n", __func__); + return -EBUSY; + } + + dvbdmxfeed->priv = channel; + channel->pid = dvbdmxfeed->pid; + + if (fdtv_channel_collect(fdtv, &pidc, pids)) { + fdtv_channel_release(fdtv, channel); + printk(KERN_ERR "%s: could not collect pids!\n", __func__); + return -EINTR; + } + + if (dvbdmxfeed->pid == 8192) { + k = avc_tuner_get_ts(fdtv); + if (k) { + fdtv_channel_release(fdtv, channel); + printk("%s: AVCTuner_GetTS failed with error %d\n", + __func__, k); + return k; + } + } else { + k = avc_tuner_set_pids(fdtv, pidc, pids); + if (k) { + fdtv_channel_release(fdtv, channel); + printk("%s: AVCTuner_SetPIDs failed with error %d\n", + __func__, k); + return k; + } + } + + return 0; +} + +int fdtv_stop_feed(struct dvb_demux_feed *dvbdmxfeed) +{ + struct dvb_demux *demux = dvbdmxfeed->demux; + struct firedtv *fdtv = (struct firedtv*)demux->priv; + struct firedtv_channel *c = dvbdmxfeed->priv; + int k, l; + u16 pids[16]; + + if (dvbdmxfeed->type == DMX_TYPE_TS && !((dvbdmxfeed->ts_type & TS_PACKET) && + (demux->dmx.frontend->source != DMX_MEMORY_FE))) { + + if (dvbdmxfeed->ts_type & TS_DECODER) { + + if (dvbdmxfeed->pes_type >= DMX_TS_PES_OTHER || + !demux->pesfilter[dvbdmxfeed->pes_type]) + + return -EINVAL; + + demux->pids[dvbdmxfeed->pes_type] |= 0x8000; + demux->pesfilter[dvbdmxfeed->pes_type] = NULL; + } + + if (!(dvbdmxfeed->ts_type & TS_DECODER && + dvbdmxfeed->pes_type < DMX_TS_PES_OTHER)) + + return 0; + } + + if (mutex_lock_interruptible(&fdtv->demux_mutex)) + return -EINTR; + + /* list except channel to be removed */ + for (k = 0, l = 0; k < 16; k++) + if (fdtv->channel[k].active) { + if (&fdtv->channel[k] != c) + pids[l++] = fdtv->channel[k].pid; + else + fdtv->channel[k].active = false; + } + + k = avc_tuner_set_pids(fdtv, l, pids); + if (!k) + c->active = false; + + mutex_unlock(&fdtv->demux_mutex); + return k; +} + +int fdtv_dvbdev_init(struct firedtv *fdtv, struct device *dev) +{ + int err; + + err = DVB_REGISTER_ADAPTER(&fdtv->adapter, + fdtv_model_names[fdtv->type], + THIS_MODULE, dev, adapter_nr); + if (err < 0) + goto fail_log; + + /*DMX_TS_FILTERING | DMX_SECTION_FILTERING*/ + fdtv->demux.dmx.capabilities = 0; + + fdtv->demux.priv = fdtv; + fdtv->demux.filternum = 16; + fdtv->demux.feednum = 16; + fdtv->demux.start_feed = fdtv_start_feed; + fdtv->demux.stop_feed = fdtv_stop_feed; + fdtv->demux.write_to_decoder = NULL; + + err = dvb_dmx_init(&fdtv->demux); + if (err) + goto fail_unreg_adapter; + + fdtv->dmxdev.filternum = 16; + fdtv->dmxdev.demux = &fdtv->demux.dmx; + fdtv->dmxdev.capabilities = 0; + + err = dvb_dmxdev_init(&fdtv->dmxdev, &fdtv->adapter); + if (err) + goto fail_dmx_release; + + fdtv->frontend.source = DMX_FRONTEND_0; + + err = fdtv->demux.dmx.add_frontend(&fdtv->demux.dmx, + &fdtv->frontend); + if (err) + goto fail_dmxdev_release; + + err = fdtv->demux.dmx.connect_frontend(&fdtv->demux.dmx, + &fdtv->frontend); + if (err) + goto fail_rem_frontend; + + dvb_net_init(&fdtv->adapter, &fdtv->dvbnet, &fdtv->demux.dmx); + + fdtv_frontend_init(fdtv); + err = dvb_register_frontend(&fdtv->adapter, &fdtv->fe); + if (err) + goto fail_net_release; + + err = fdtv_ca_register(fdtv); + if (err) + dev_info(dev, "Conditional Access Module not enabled\n"); + + return 0; + +fail_net_release: + dvb_net_release(&fdtv->dvbnet); + fdtv->demux.dmx.close(&fdtv->demux.dmx); +fail_rem_frontend: + fdtv->demux.dmx.remove_frontend(&fdtv->demux.dmx, + &fdtv->frontend); +fail_dmxdev_release: + dvb_dmxdev_release(&fdtv->dmxdev); +fail_dmx_release: + dvb_dmx_release(&fdtv->demux); +fail_unreg_adapter: + dvb_unregister_adapter(&fdtv->adapter); +fail_log: + dev_err(dev, "DVB initialization failed\n"); + return err; +} + + |