#include <poll.h>
#include <unistd.h>
#include <sys/ioctl.h>
+#include <linux/dvb/version.h>
#include <linux/dvb/frontend.h>
#include <linux/dvb/dmx.h>
#include "dtv/dtv.h"
+#ifdef HAVE_DVBPSI
+# include "dtv/en50221.h"
+#endif
#ifndef O_SEARCH
# define O_SEARCH O_RDONLY
#endif
+#define DVBv5(minor) \
+ (DVB_API_VERSION > 5 \
+ || (DVB_API_VERSION == 5 && DVB_API_VERSION_MINOR >= (minor)))
+#if !DVBv5(0)
+# error Linux DVB kernel headers version 2.6.28 or later required.
+#endif
+
/** Opens the device directory for the specified DVB adapter */
static int dvb_open_adapter (uint8_t adapter)
{
}
/** Opens the DVB device node of the specified type */
-static int dvb_open_node (int dirfd, uint8_t dev, const char *type, int flags)
+static int dvb_open_node (int dir, const char *type, unsigned dev, int flags)
{
int fd;
char path[strlen (type) + 4];
snprintf (path, sizeof (path), "%s%"PRIu8, type, dev);
- fd = openat (dirfd, path, flags|O_CLOEXEC);
+ fd = openat (dir, path, flags|O_CLOEXEC);
if (fd != -1)
fcntl (fd, F_SETFL, fcntl (fd, F_GETFL) | O_NONBLOCK);
return fd;
return dvb_parse_str (str, mods, sizeof (mods) / sizeof (*mods), def);
}
-static int dvb_parse_fec (const char *str)
+static int dvb_parse_fec (uint32_t fec)
{
- static const dvb_str_map_t rates[] =
+ static const dvb_int_map_t rates[] =
{
- { "", FEC_AUTO },
- { "1/2", FEC_1_2 },
+ { 0, FEC_NONE },
+ { VLC_FEC(1,2), FEC_1_2 },
// TODO: 1/3
// TODO: 1/4
- { "2/3", FEC_2_3 },
- { "3/4", FEC_3_4 },
- { "4/5", FEC_4_5 },
- { "5/6", FEC_5_6 },
- { "6/7", FEC_6_7 },
- { "7/8", FEC_7_8 },
- { "8/9", FEC_8_9 },
- { "9/10", FEC_9_10 },
+ { VLC_FEC(2,3), FEC_2_3 },
+ { VLC_FEC(3,4), FEC_3_4 },
+ { VLC_FEC(3,5), FEC_3_5 },
+ { VLC_FEC(4,5), FEC_4_5 },
+ { VLC_FEC(5,6), FEC_5_6 },
+ { VLC_FEC(6,7), FEC_6_7 },
+ { VLC_FEC(7,8), FEC_7_8 },
+ { VLC_FEC(8,9), FEC_8_9 },
+ { VLC_FEC(9,10), FEC_9_10 },
+ { VLC_FEC_AUTO, FEC_AUTO },
};
- return dvb_parse_str (str, rates, sizeof (rates) / sizeof (*rates),
+ return dvb_parse_int (fec, rates, sizeof (rates) / sizeof (*rates),
FEC_AUTO);
}
struct dvb_device
{
vlc_object_t *obj;
- int frontend;
+ int dir;
int demux;
+ int frontend;
#ifndef USE_DMX
# define MAX_PIDS 256
- int dir;
- uint8_t dev_id;
struct
{
int fd;
uint16_t pid;
} pids[MAX_PIDS];
#endif
- int ca;
+#ifdef HAVE_DVBPSI
+ cam_t *cam;
+#endif
struct dvb_frontend_info info;
bool budget;
//size_t buffer_size;
/**
* Opens the DVB tuner
*/
-dvb_device_t *dvb_open (vlc_object_t *obj, bool tune)
+dvb_device_t *dvb_open (vlc_object_t *obj)
{
+ dvb_device_t *d = malloc (sizeof (*d));
+ if (unlikely(d == NULL))
+ return NULL;
+
+ d->obj = obj;
+
uint8_t adapter = var_InheritInteger (obj, "dvb-adapter");
- uint8_t device = var_InheritInteger (obj, "dvb-device");
- int dirfd = dvb_open_adapter (adapter);
- if (dirfd == -1)
+ d->dir = dvb_open_adapter (adapter);
+ if (d->dir == -1)
{
msg_Err (obj, "cannot access adapter %"PRIu8": %m", adapter);
+ free (d);
return NULL;
}
-
- dvb_device_t *d = malloc (sizeof (*d));
- if (unlikely(d == NULL))
- {
- close (dirfd);
- return NULL;
- }
-
- d->obj = obj;
d->frontend = -1;
- d->ca = -1;
+#ifdef HAVE_DVBPSI
+ d->cam = NULL;
+#endif
d->budget = var_InheritBool (obj, "dvb-budget-mode");
#ifndef USE_DMX
if (d->budget)
#endif
{
- d->demux = dvb_open_node (dirfd, device, "demux", O_RDONLY);
+ d->demux = dvb_open_node (d->dir, "demux", 0, O_RDONLY);
if (d->demux == -1)
{
msg_Err (obj, "cannot access demultiplexer: %m");
+ close (d->dir);
free (d);
- close (dirfd);
return NULL;
}
}
else
{
- d->dir = fcntl (dirfd, F_DUPFD_CLOEXEC);
- d->dev_id = device;
-
for (size_t i = 0; i < MAX_PIDS; i++)
d->pids[i].pid = d->pids[i].fd = -1;
- d->demux = dvb_open_node (d->dir, device, "dvr", O_RDONLY);
+ d->demux = dvb_open_node (d->dir, "dvr", 0, O_RDONLY);
if (d->demux == -1)
{
msg_Err (obj, "cannot access DVR: %m");
+ close (d->dir);
free (d);
- close (dirfd);
return NULL;
}
#endif
}
- if (tune)
+#ifdef HAVE_DVBPSI
+ int ca = dvb_open_node (d->dir, "ca", 0, O_RDWR);
+ if (ca != -1)
{
- d->frontend = dvb_open_node (dirfd, device, "frontend", O_RDWR);
- if (d->frontend == -1)
- {
- msg_Err (obj, "cannot access frontend %"PRIu8
- " of adapter %"PRIu8": %m", device, adapter);
- goto error;
- }
-
- if (ioctl (d->frontend, FE_GET_INFO, &d->info) < 0)
- {
- msg_Err (obj, "cannot get frontend info: %m");
- goto error;
- }
-
- msg_Dbg (obj, "using frontend: %s", d->info.name);
- msg_Dbg (obj, " type %u, capabilities 0x%08X", d->info.type,
- d->info.caps);
-
- d->ca = dvb_open_node (dirfd, device, "ca", O_RDWR);
- if (d->ca == -1)
- msg_Dbg (obj, "conditional access module not available (%m)");
-
+ d->cam = en50221_Init (obj, ca);
+ if (d->cam == NULL)
+ close (ca);
}
- close (dirfd);
+ else
+ msg_Dbg (obj, "conditional access module not available (%m)");
+#endif
return d;
error:
- close (dirfd);
dvb_close (d);
return NULL;
}
#ifndef USE_DMX
if (!d->budget)
{
- close (d->dir);
for (size_t i = 0; i < MAX_PIDS; i++)
if (d->pids[i].fd != -1)
close (d->pids[i].fd);
}
#endif
- if (d->ca != -1)
- close (d->ca);
+#ifdef HAVE_DVBPSI
+ if (d->cam != NULL)
+ en50221_End (d->cam);
+#endif
if (d->frontend != -1)
close (d->frontend);
close (d->demux);
+ close (d->dir);
free (d);
}
struct pollfd ufd[2];
int n;
+#ifdef HAVE_DVBPSI
+ if (d->cam != NULL)
+ en50221_Poll (d->cam);
+#endif
+
ufd[0].fd = d->demux;
ufd[0].events = POLLIN;
if (d->frontend != -1)
if (d->pids[i].fd != -1)
continue;
- int fd = dvb_open_node (d->dir, d->dev_id, "demux", O_RDONLY);
+ int fd = dvb_open_node (d->dir, "demux", 0, O_RDONLY);
if (fd == -1)
goto error;
#endif
}
+/** Finds a frontend of the correct type */
+static int dvb_find_frontend (dvb_device_t *d, fe_type_t type, fe_caps_t caps)
+{
+ if (d->frontend != -1)
+ {
+ if (d->info.type == type || (d->info.caps & caps) == caps)
+ return 0; /* already got an adequate frontend */
+
+ close (d->frontend);
+ d->frontend = -1;
+ }
+
+ for (unsigned n = 0; n < 256; n++)
+ {
+ int fd = dvb_open_node (d->dir, "frontend", n, O_RDWR);
+ if (fd == -1)
+ {
+ if (errno == ENOENT)
+ break; /* all frontends already enumerated */
+ msg_Err (d->obj, "cannot access frontend %u; %m", n);
+ continue;
+ }
+
+ if (ioctl (fd, FE_GET_INFO, &d->info) < 0)
+ {
+ msg_Err (d->obj, "cannot get frontend %u info: %m", n);
+ goto skip;
+ }
+
+ msg_Dbg (d->obj, "probing frontend %u: %s", n, d->info.name);
+ msg_Dbg (d->obj, " type %u, capabilities 0x%08X", d->info.type,
+ d->info.caps);
+ msg_Dbg (d->obj, " frequencies %10"PRIu32" to %10"PRIu32,
+ d->info.frequency_min, d->info.frequency_max);
+ msg_Dbg (d->obj, " (%"PRIu32" tolerance, %"PRIu32" per step)",
+ d->info.frequency_tolerance, d->info.frequency_stepsize);
+ msg_Dbg (d->obj, " bauds rates %10"PRIu32" to %10"PRIu32,
+ d->info.symbol_rate_min, d->info.symbol_rate_max);
+ msg_Dbg (d->obj, " (%"PRIu32" tolerance)",
+ d->info.symbol_rate_tolerance);
+
+ if (d->info.type != type || (d->info.caps & caps) != caps)
+ {
+ msg_Dbg (d->obj, "skipping frontend %u: wrong type", n);
+ goto skip;
+ }
+
+ msg_Dbg (d->obj, "selected frontend %u", n);
+ d->frontend = fd;
+ return 0;
+
+ skip:
+ close (fd);
+ }
+
+ msg_Err (d->obj, "no suitable frontend found");
+ return -1;
+}
+
const delsys_t *dvb_guess_system (dvb_device_t *d)
{
- assert (d->frontend != -1);
+ if (d->frontend == -1)
+ {
+ d->frontend = dvb_open_node (d->dir, "frontend", 0, O_RDWR);
+ if (d->frontend == -1)
+ {
+ msg_Err (d->obj, "cannot access frontend %u; %m", 0);
+ return NULL;
+ }
- //bool v2 = d->info.caps & FE_CAN_2G_MODULATION;
+ if (ioctl (d->frontend, FE_GET_INFO, &d->info) < 0)
+ {
+ msg_Err (d->obj, "cannot get frontend %u info: %m", 0);
+ close (d->frontend);
+ d->frontend = -1;
+ return NULL;
+ }
+ }
+ //bool v2 = d->info.caps & FE_CAN_2G_MODULATION;
switch (d->info.type)
{
case FE_QPSK: return /*v2 ? &dvbs2 :*/ &dvbs;
case FE_QAM: return &dvbc;
- case FE_OFDM: return &dvbt;
+ case FE_OFDM: return /*v2 ? &dvbt2 :*/ &dvbt;
case FE_ATSC: return &atsc;
}
return NULL;
return snr / 65535.;
}
+#ifdef HAVE_DVBPSI
+void dvb_set_ca_pmt (dvb_device_t *d, struct dvbpsi_pmt_s *pmt)
+{
+ if (d->cam != NULL)
+ en50221_SetCAPMT (d->cam, pmt);
+}
+#endif
+
static int dvb_vset_props (dvb_device_t *d, size_t n, va_list ap)
{
struct dtv_property buf[n], *prop = buf;
/*** DVB-C ***/
int dvb_set_dvbc (dvb_device_t *d, uint32_t freq, const char *modstr,
- uint32_t srate, const char *fecstr)
+ uint32_t srate, uint32_t fec)
{
unsigned mod = dvb_parse_modulation (modstr, QAM_AUTO);
- unsigned fec = dvb_parse_fec (fecstr);
+ fec = dvb_parse_fec (fec);
+ if (dvb_find_frontend (d, FE_QAM, FE_IS_STUPID))
+ return -1;
return dvb_set_props (d, 6, DTV_CLEAR, 0,
DTV_DELIVERY_SYSTEM, SYS_DVBC_ANNEX_AC,
DTV_FREQUENCY, freq * 1000, DTV_MODULATION, mod,
return dvb_set_props (d, 2, DTV_FREQUENCY, freq, DTV_TONE, tone);
}
-int dvb_set_dvbs (dvb_device_t *d, uint32_t freq,
- uint32_t srate, const char *fecstr)
+int dvb_set_dvbs (dvb_device_t *d, uint32_t freq, uint32_t srate, uint32_t fec)
{
- unsigned fec = dvb_parse_fec (fecstr);
+ fec = dvb_parse_fec (fec);
+ if (dvb_find_frontend (d, FE_QPSK, FE_IS_STUPID))
+ return -1;
return dvb_set_props (d, 5, DTV_CLEAR, 0, DTV_DELIVERY_SYSTEM, SYS_DVBS,
DTV_FREQUENCY, freq, DTV_SYMBOL_RATE, srate,
DTV_INNER_FEC, fec);
}
int dvb_set_dvbs2 (dvb_device_t *d, uint32_t freq, const char *modstr,
- uint32_t srate, const char *fecstr, int pilot, int rolloff)
+ uint32_t srate, uint32_t fec, int pilot, int rolloff)
{
unsigned mod = dvb_parse_modulation (modstr, QPSK);
- unsigned fec = dvb_parse_fec (fecstr);
+ fec = dvb_parse_fec (fec);
switch (pilot)
{
default: rolloff = PILOT_AUTO; break;
}
+ if (dvb_find_frontend (d, FE_QPSK, FE_CAN_2G_MODULATION))
+ return -1;
return dvb_set_props (d, 8, DTV_CLEAR, 0, DTV_DELIVERY_SYSTEM, SYS_DVBS2,
DTV_FREQUENCY, freq, DTV_MODULATION, mod,
DTV_SYMBOL_RATE, srate, DTV_INNER_FEC, fec,
{
static const dvb_int_map_t tab[] = {
{ -1, TRANSMISSION_MODE_AUTO },
+#if DVBv5(3)
+ { 1, TRANSMISSION_MODE_1K },
+#endif
{ 2, TRANSMISSION_MODE_2K },
#if DVBv5(1)
{ 4, TRANSMISSION_MODE_4K },
#endif
{ 8, TRANSMISSION_MODE_8K },
-#if 0
+#if DVBv5(3)
{ 16, TRANSMISSION_MODE_16K },
{ 32, TRANSMISSION_MODE_32K },
#endif
TRANSMISSION_MODE_AUTO);
}
-static int dvb_parse_guard (const char *str)
+static int dvb_parse_guard (uint32_t guard)
{
- static const dvb_str_map_t tab[] = {
- { "", GUARD_INTERVAL_AUTO },
- /*{ "1/128", GUARD_INTERVAL_1_128 },*/
- { "1/16", GUARD_INTERVAL_1_16 },
- { "1/32", GUARD_INTERVAL_1_32 },
- { "1/4", GUARD_INTERVAL_1_4 },
- { "1/8", GUARD_INTERVAL_1_8 },
- /*{ "19/128", GUARD_INTERVAL_19_128 },*/
- /*{ "9/256", GUARD_INTERVAL_9_256 },*/
+ static const dvb_int_map_t tab[] = {
+ { VLC_GUARD(1,4), GUARD_INTERVAL_1_4 },
+ { VLC_GUARD(1,8), GUARD_INTERVAL_1_8 },
+ { VLC_GUARD(1,16), GUARD_INTERVAL_1_16 },
+ { VLC_GUARD(1,32), GUARD_INTERVAL_1_32 },
+#if DVBv5(3)
+ { VLC_GUARD(1,128), GUARD_INTERVAL_1_128 },
+ { VLC_GUARD(19,128), GUARD_INTERVAL_19_128 },
+ { VLC_GUARD(19,256), GUARD_INTERVAL_19_256 },
+#endif
+ { VLC_GUARD_AUTO, GUARD_INTERVAL_AUTO },
};
- return dvb_parse_str (str, tab, sizeof (tab) / sizeof (*tab),
+ return dvb_parse_int (guard, tab, sizeof (tab) / sizeof (*tab),
GUARD_INTERVAL_AUTO);
}
}
int dvb_set_dvbt (dvb_device_t *d, uint32_t freq, const char *modstr,
- const char *fechstr, const char *feclstr, uint32_t bandwidth,
- int transmit_val, const char *guardstr, int hierarchy_val)
+ uint32_t fec_hp, uint32_t fec_lp, uint32_t bandwidth,
+ int transmit_mode, uint32_t guard, int hierarchy)
{
uint32_t mod = dvb_parse_modulation (modstr, QAM_AUTO);
- uint32_t fec_hp = dvb_parse_fec (fechstr);
- uint32_t fec_lp = dvb_parse_fec (feclstr);
+ fec_hp = dvb_parse_fec (fec_hp);
+ fec_lp = dvb_parse_fec (fec_lp);
bandwidth *= 1000000;
- uint32_t transmit_mode = dvb_parse_transmit_mode (transmit_val);
- uint32_t guard_it = dvb_parse_guard (guardstr);
- uint32_t hierarchy = dvb_parse_hierarchy (hierarchy_val);
+ transmit_mode = dvb_parse_transmit_mode (transmit_mode);
+ guard = dvb_parse_guard (guard);
+ hierarchy = dvb_parse_hierarchy (hierarchy);
+ if (dvb_find_frontend (d, FE_OFDM, FE_IS_STUPID))
+ return -1;
return dvb_set_props (d, 10, DTV_CLEAR, 0, DTV_DELIVERY_SYSTEM, SYS_DVBT,
DTV_FREQUENCY, freq * 1000, DTV_MODULATION, mod,
DTV_CODE_RATE_HP, fec_hp, DTV_CODE_RATE_LP, fec_lp,
DTV_BANDWIDTH_HZ, bandwidth,
DTV_TRANSMISSION_MODE, transmit_mode,
- DTV_GUARD_INTERVAL, guard_it,
+ DTV_GUARD_INTERVAL, guard,
DTV_HIERARCHY, hierarchy);
}
+int dvb_set_dvbt2 (dvb_device_t *d, uint32_t freq, const char *modstr,
+ uint32_t fec, uint32_t bandwidth,
+ int transmit_mode, uint32_t guard)
+{
+#if DVBv5(3)
+ uint32_t mod = dvb_parse_modulation (modstr, QAM_AUTO);
+ fec = dvb_parse_fec (fec);
+ bandwidth *= 1000000;
+ transmit_mode = dvb_parse_transmit_mode (transmit_mode);
+ guard = dvb_parse_guard (guard);
+
+ if (dvb_find_frontend (d, FE_OFDM, FE_CAN_2G_MODULATION))
+ return -1;
+ return dvb_set_props (d, 8, DTV_CLEAR, 0, DTV_DELIVERY_SYSTEM, SYS_DVBT2,
+ DTV_FREQUENCY, freq * 1000, DTV_MODULATION, mod,
+ DTV_INNER_FEC, fec, DTV_BANDWIDTH_HZ, bandwidth,
+ DTV_TRANSMISSION_MODE, transmit_mode,
+ DTV_GUARD_INTERVAL, guard);
+#else
+# warning DVB-T2 needs Linux DVB version 5.3 or later.
+ msg_Err (d->obj, "DVB-T2 support not compiled-in");
+ (void) freq; (void) modstr; (void) fec; (void) bandwidth;
+ (void) transmit_mode; (void) guard;
+ return -1;
+#endif
+}
+
/*** ATSC ***/
int dvb_set_atsc (dvb_device_t *d, uint32_t freq, const char *modstr)
{
unsigned mod = dvb_parse_modulation (modstr, VSB_8);
+ if (dvb_find_frontend (d, FE_ATSC, FE_IS_STUPID))
+ return -1;
return dvb_set_props (d, 4, DTV_CLEAR, 0, DTV_DELIVERY_SYSTEM, SYS_ATSC,
DTV_FREQUENCY, freq * 1000, DTV_MODULATION, mod);
}
{
unsigned mod = dvb_parse_modulation (modstr, QAM_AUTO);
+ if (dvb_find_frontend (d, FE_QAM, FE_IS_STUPID))
+ return -1;
return dvb_set_props (d, 4, DTV_CLEAR, 0,
DTV_DELIVERY_SYSTEM, SYS_DVBC_ANNEX_B,
DTV_FREQUENCY, freq * 1000, DTV_MODULATION, mod);
projects / vlc / blobdiff