#include "dvb_frontend.h"
#include "dvbdev.h"
+#include <linux/dvb/version.h>
static int dvb_frontend_debug;
static int dvb_shutdown_timeout;
static int dvb_force_auto_inversion;
static int dvb_override_tune_delay;
static int dvb_powerdown_on_sleep = 1;
+static int dvb_mfe_wait_time = 5;
module_param_named(frontend_debug, dvb_frontend_debug, int, 0644);
MODULE_PARM_DESC(frontend_debug, "Turn on/off frontend core debugging (default:off).");
MODULE_PARM_DESC(dvb_override_tune_delay, "0: normal (default), >0 => delay in milliseconds to wait for lock after a tune attempt");
module_param(dvb_powerdown_on_sleep, int, 0644);
MODULE_PARM_DESC(dvb_powerdown_on_sleep, "0: do not power down, 1: turn LNB voltage off on sleep (default)");
+module_param(dvb_mfe_wait_time, int, 0644);
+MODULE_PARM_DESC(dvb_mfe_wait_time, "Wait up to <mfe_wait_time> seconds on open() for multi-frontend to become available (default:5 seconds)");
#define dprintk if (dvb_frontend_debug) printk
unsigned int step_size;
int quality;
unsigned int check_wrapped;
+ enum dvbfe_search algo_status;
};
static void dvb_frontend_wakeup(struct dvb_frontend *fe);
static void dvb_frontend_init(struct dvb_frontend *fe)
{
- dprintk ("DVB: initialising frontend %i (%s)...\n",
+ dprintk ("DVB: initialising adapter %i frontend %i (%s)...\n",
fe->dvb->num,
+ fe->id,
fe->ops.info.name);
if (fe->ops.init)
fe->ops.init(fe);
if (fe->ops.tuner_ops.init) {
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
fe->ops.tuner_ops.init(fe);
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
struct dvb_frontend_private *fepriv = fe->frontend_priv;
unsigned long timeout;
fe_status_t s;
+ enum dvbfe_algo algo;
+
struct dvb_frontend_parameters *params;
dprintk("%s\n", __func__);
/* do an iteration of the tuning loop */
if (fe->ops.get_frontend_algo) {
- if (fe->ops.get_frontend_algo(fe) == FE_ALGO_HW) {
- /* have we been asked to retune? */
- params = NULL;
+ algo = fe->ops.get_frontend_algo(fe);
+ switch (algo) {
+ case DVBFE_ALGO_HW:
+ dprintk("%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__);
+ params = NULL; /* have we been asked to RETUNE ? */
+
if (fepriv->state & FESTATE_RETUNE) {
+ dprintk("%s: Retune requested, FESTATE_RETUNE\n", __func__);
params = &fepriv->parameters;
fepriv->state = FESTATE_TUNED;
}
- fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s);
- if (s != fepriv->status) {
+ if (fe->ops.tune)
+ fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s);
+
+ if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) {
+ dprintk("%s: state changed, adding current state\n", __func__);
dvb_frontend_add_event(fe, s);
fepriv->status = s;
}
- } else
+ break;
+ case DVBFE_ALGO_SW:
+ dprintk("%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__);
dvb_frontend_swzigzag(fe);
- } else
+ break;
+ case DVBFE_ALGO_CUSTOM:
+ params = NULL; /* have we been asked to RETUNE ? */
+ dprintk("%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state);
+ if (fepriv->state & FESTATE_RETUNE) {
+ dprintk("%s: Retune requested, FESTAT_RETUNE\n", __func__);
+ params = &fepriv->parameters;
+ fepriv->state = FESTATE_TUNED;
+ }
+ /* Case where we are going to search for a carrier
+ * User asked us to retune again for some reason, possibly
+ * requesting a search with a new set of parameters
+ */
+ if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) {
+ if (fe->ops.search) {
+ fepriv->algo_status = fe->ops.search(fe, &fepriv->parameters);
+ /* We did do a search as was requested, the flags are
+ * now unset as well and has the flags wrt to search.
+ */
+ } else {
+ fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN;
+ }
+ }
+ /* Track the carrier if the search was successful */
+ if (fepriv->algo_status == DVBFE_ALGO_SEARCH_SUCCESS) {
+ if (fe->ops.track)
+ fe->ops.track(fe, &fepriv->parameters);
+ } else {
+ fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN;
+ fepriv->delay = HZ / 2;
+ }
+ fe->ops.read_status(fe, &s);
+ if (s != fepriv->status) {
+ dvb_frontend_add_event(fe, s); /* update event list */
+ fepriv->status = s;
+ if (!(s & FE_HAS_LOCK)) {
+ fepriv->delay = HZ / 10;
+ fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN;
+ } else {
+ fepriv->delay = 60 * HZ;
+ }
+ }
+ break;
+ default:
+ dprintk("%s: UNDEFINED ALGO !\n", __func__);
+ break;
+ }
+ } else {
dvb_frontend_swzigzag(fe);
+ }
}
if (dvb_powerdown_on_sleep) {
if (fe->ops.set_voltage)
fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF);
if (fe->ops.tuner_ops.sleep) {
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
fe->ops.tuner_ops.sleep(fe);
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
mb();
fe_thread = kthread_run(dvb_frontend_thread, fe,
- "kdvb-fe-%i", fe->dvb->num);
+ "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id);
if (IS_ERR(fe_thread)) {
ret = PTR_ERR(fe_thread);
printk("dvb_frontend_start: failed to start kthread (%d)\n", ret);
*freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max);
if (*freq_min == 0 || *freq_max == 0)
- printk(KERN_WARNING "DVB: frontend %u frequency limits undefined - fix the driver\n",
- fe->dvb->num);
+ printk(KERN_WARNING "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n",
+ fe->dvb->num,fe->id);
}
static int dvb_frontend_check_parameters(struct dvb_frontend *fe,
dvb_frontend_get_frequeny_limits(fe, &freq_min, &freq_max);
if ((freq_min && parms->frequency < freq_min) ||
(freq_max && parms->frequency > freq_max)) {
- printk(KERN_WARNING "DVB: frontend %u frequency %u out of range (%u..%u)\n",
- fe->dvb->num, parms->frequency, freq_min, freq_max);
+ printk(KERN_WARNING "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n",
+ fe->dvb->num, fe->id, parms->frequency, freq_min, freq_max);
return -EINVAL;
}
parms->u.qpsk.symbol_rate < fe->ops.info.symbol_rate_min) ||
(fe->ops.info.symbol_rate_max &&
parms->u.qpsk.symbol_rate > fe->ops.info.symbol_rate_max)) {
- printk(KERN_WARNING "DVB: frontend %u symbol rate %u out of range (%u..%u)\n",
- fe->dvb->num, parms->u.qpsk.symbol_rate,
+ printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n",
+ fe->dvb->num, fe->id, parms->u.qpsk.symbol_rate,
fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max);
return -EINVAL;
}
parms->u.qam.symbol_rate < fe->ops.info.symbol_rate_min) ||
(fe->ops.info.symbol_rate_max &&
parms->u.qam.symbol_rate > fe->ops.info.symbol_rate_max)) {
- printk(KERN_WARNING "DVB: frontend %u symbol rate %u out of range (%u..%u)\n",
- fe->dvb->num, parms->u.qam.symbol_rate,
+ printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n",
+ fe->dvb->num, fe->id, parms->u.qam.symbol_rate,
fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max);
return -EINVAL;
}
return 0;
}
-struct dtv_cmds_h dtv_cmds[] = {
+static struct dtv_cmds_h dtv_cmds[] = {
[DTV_TUNE] = {
.name = "DTV_TUNE",
.cmd = DTV_TUNE,
.cmd = DTV_DELIVERY_SYSTEM,
.set = 1,
},
+ [DTV_HIERARCHY] = {
+ .name = "DTV_HIERARCHY",
+ .cmd = DTV_HIERARCHY,
+ .set = 1,
+ },
+ [DTV_CODE_RATE_HP] = {
+ .name = "DTV_CODE_RATE_HP",
+ .cmd = DTV_CODE_RATE_HP,
+ .set = 1,
+ },
+ [DTV_CODE_RATE_LP] = {
+ .name = "DTV_CODE_RATE_LP",
+ .cmd = DTV_CODE_RATE_LP,
+ .set = 1,
+ },
+ [DTV_GUARD_INTERVAL] = {
+ .name = "DTV_GUARD_INTERVAL",
+ .cmd = DTV_GUARD_INTERVAL,
+ .set = 1,
+ },
+ [DTV_TRANSMISSION_MODE] = {
+ .name = "DTV_TRANSMISSION_MODE",
+ .cmd = DTV_TRANSMISSION_MODE,
+ .set = 1,
+ },
/* Get */
[DTV_DISEQC_SLAVE_REPLY] = {
.name = "DTV_DISEQC_SLAVE_REPLY",
.set = 0,
.buffer = 1,
},
+ [DTV_API_VERSION] = {
+ .name = "DTV_API_VERSION",
+ .cmd = DTV_API_VERSION,
+ .set = 0,
+ },
+ [DTV_CODE_RATE_HP] = {
+ .name = "DTV_CODE_RATE_HP",
+ .cmd = DTV_CODE_RATE_HP,
+ .set = 0,
+ },
+ [DTV_CODE_RATE_LP] = {
+ .name = "DTV_CODE_RATE_LP",
+ .cmd = DTV_CODE_RATE_LP,
+ .set = 0,
+ },
+ [DTV_GUARD_INTERVAL] = {
+ .name = "DTV_GUARD_INTERVAL",
+ .cmd = DTV_GUARD_INTERVAL,
+ .set = 0,
+ },
+ [DTV_TRANSMISSION_MODE] = {
+ .name = "DTV_TRANSMISSION_MODE",
+ .cmd = DTV_TRANSMISSION_MODE,
+ .set = 0,
+ },
+ [DTV_HIERARCHY] = {
+ .name = "DTV_HIERARCHY",
+ .cmd = DTV_HIERARCHY,
+ .set = 0,
+ },
};
-void dtv_property_dump(struct dtv_property *tvp)
+static void dtv_property_dump(struct dtv_property *tvp)
{
int i;
- printk("%s() tvp.cmd = 0x%08x (%s)\n"
- ,__FUNCTION__
+ if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) {
+ printk(KERN_WARNING "%s: tvp.cmd = 0x%08x undefined\n",
+ __func__, tvp->cmd);
+ return;
+ }
+
+ dprintk("%s() tvp.cmd = 0x%08x (%s)\n"
+ ,__func__
,tvp->cmd
,dtv_cmds[ tvp->cmd ].name);
if(dtv_cmds[ tvp->cmd ].buffer) {
- printk("%s() tvp.u.buffer.len = 0x%02x\n"
- ,__FUNCTION__
+ dprintk("%s() tvp.u.buffer.len = 0x%02x\n"
+ ,__func__
,tvp->u.buffer.len);
for(i = 0; i < tvp->u.buffer.len; i++)
- printk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n"
- ,__FUNCTION__
+ dprintk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n"
+ ,__func__
,i
,tvp->u.buffer.data[i]);
} else
- printk("%s() tvp.u.data = 0x%08x\n", __FUNCTION__, tvp->u.data);
+ dprintk("%s() tvp.u.data = 0x%08x\n", __func__, tvp->u.data);
}
-int is_legacy_delivery_system(fe_delivery_system_t s)
+static int is_legacy_delivery_system(fe_delivery_system_t s)
{
if((s == SYS_UNDEFINED) || (s == SYS_DVBC_ANNEX_AC) ||
- (s == SYS_DVBC_ANNEX_B) || (s == SYS_DVBT) || (s == SYS_DVBS))
+ (s == SYS_DVBC_ANNEX_B) || (s == SYS_DVBT) || (s == SYS_DVBS) ||
+ (s == SYS_ATSC))
return 1;
return 0;
* drivers can use a single set_frontend tuning function, regardless of whether
* it's being used for the legacy or new API, reducing code and complexity.
*/
-void dtv_property_cache_sync(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
+static void dtv_property_cache_sync(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *p)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- printk("%s()\n", __FUNCTION__);
-
c->frequency = p->frequency;
c->inversion = p->inversion;
switch (fe->ops.info.type) {
case FE_QPSK:
+ c->modulation = QPSK; /* implied for DVB-S in legacy API */
+ c->rolloff = ROLLOFF_35;/* implied for DVB-S */
c->symbol_rate = p->u.qpsk.symbol_rate;
c->fec_inner = p->u.qpsk.fec_inner;
c->delivery_system = SYS_DVBS;
/* Ensure the cached values are set correctly in the frontend
* legacy tuning structures, for the advanced tuning API.
*/
-void dtv_property_legacy_params_sync(struct dvb_frontend *fe)
+static void dtv_property_legacy_params_sync(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
struct dvb_frontend_parameters *p = &fepriv->parameters;
- printk("%s()\n", __FUNCTION__);
-
p->frequency = c->frequency;
p->inversion = c->inversion;
switch (fe->ops.info.type) {
case FE_QPSK:
- printk("%s() Preparing QPSK req\n", __FUNCTION__);
+ dprintk("%s() Preparing QPSK req\n", __func__);
p->u.qpsk.symbol_rate = c->symbol_rate;
p->u.qpsk.fec_inner = c->fec_inner;
c->delivery_system = SYS_DVBS;
break;
case FE_QAM:
- printk("%s() Preparing QAM req\n", __FUNCTION__);
+ dprintk("%s() Preparing QAM req\n", __func__);
p->u.qam.symbol_rate = c->symbol_rate;
p->u.qam.fec_inner = c->fec_inner;
p->u.qam.modulation = c->modulation;
c->delivery_system = SYS_DVBC_ANNEX_AC;
break;
case FE_OFDM:
- printk("%s() Preparing OFDM req\n", __FUNCTION__);
+ dprintk("%s() Preparing OFDM req\n", __func__);
if (c->bandwidth_hz == 6000000)
p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ;
else if (c->bandwidth_hz == 7000000)
c->delivery_system = SYS_DVBT;
break;
case FE_ATSC:
- printk("%s() Preparing VSB req\n", __FUNCTION__);
+ dprintk("%s() Preparing VSB req\n", __func__);
p->u.vsb.modulation = c->modulation;
if ((c->modulation == VSB_8) || (c->modulation == VSB_16))
c->delivery_system = SYS_ATSC;
/* Ensure the cached values are set correctly in the frontend
* legacy tuning structures, for the legacy tuning API.
*/
-void dtv_property_adv_params_sync(struct dvb_frontend *fe)
+static void dtv_property_adv_params_sync(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
struct dvb_frontend_parameters *p = &fepriv->parameters;
- printk("%s()\n", __FUNCTION__);
-
p->frequency = c->frequency;
p->inversion = c->inversion;
switch(c->modulation) {
- case _8PSK:
- case _16APSK:
- case NBC_QPSK:
+ case PSK_8:
+ case APSK_16:
+ case APSK_32:
+ case QPSK:
p->u.qpsk.symbol_rate = c->symbol_rate;
p->u.qpsk.fec_inner = c->fec_inner;
break;
}
}
-void dtv_property_cache_submit(struct dvb_frontend *fe)
+static void dtv_property_cache_submit(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- printk("%s()\n", __FUNCTION__);
-
/* For legacy delivery systems we don't need the delivery_system to
* be specified, but we populate the older structures from the cache
* so we can call set_frontend on older drivers.
*/
if(is_legacy_delivery_system(c->delivery_system)) {
- printk("%s() legacy, modulation = %d\n", __FUNCTION__, c->modulation);
+ dprintk("%s() legacy, modulation = %d\n", __func__, c->modulation);
dtv_property_legacy_params_sync(fe);
} else {
- printk("%s() adv, modulation = %d\n", __FUNCTION__, c->modulation);
+ dprintk("%s() adv, modulation = %d\n", __func__, c->modulation);
/* For advanced delivery systems / modulation types ...
* we seed the lecacy dvb_frontend_parameters structure
static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file,
unsigned int cmd, void *parg);
-int dtv_property_process_get(struct dvb_frontend *fe, struct dtv_property *tvp,
- struct inode *inode, struct file *file)
+static int dtv_property_process_get(struct dvb_frontend *fe,
+ struct dtv_property *tvp,
+ struct inode *inode, struct file *file)
{
int r = 0;
- printk("%s()\n", __FUNCTION__);
-
dtv_property_dump(tvp);
/* Allow the frontend to validate incoming properties */
case DTV_TONE:
tvp->u.data = fe->dtv_property_cache.sectone;
break;
+ case DTV_API_VERSION:
+ tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR;
+ break;
+ case DTV_CODE_RATE_HP:
+ tvp->u.data = fe->dtv_property_cache.code_rate_HP;
+ break;
+ case DTV_CODE_RATE_LP:
+ tvp->u.data = fe->dtv_property_cache.code_rate_LP;
+ break;
+ case DTV_GUARD_INTERVAL:
+ tvp->u.data = fe->dtv_property_cache.guard_interval;
+ break;
+ case DTV_TRANSMISSION_MODE:
+ tvp->u.data = fe->dtv_property_cache.transmission_mode;
+ break;
+ case DTV_HIERARCHY:
+ tvp->u.data = fe->dtv_property_cache.hierarchy;
+ break;
default:
r = -1;
}
return r;
}
-int dtv_property_process_set(struct dvb_frontend *fe, struct dtv_property *tvp,
- struct inode *inode, struct file *file)
+static int dtv_property_process_set(struct dvb_frontend *fe,
+ struct dtv_property *tvp,
+ struct inode *inode,
+ struct file *file)
{
int r = 0;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
- printk("%s()\n", __FUNCTION__);
dtv_property_dump(tvp);
/* Allow the frontend to validate incoming properties */
/* Reset a cache of data specific to the frontend here. This does
* not effect hardware.
*/
- printk("%s() Flushing property cache\n", __FUNCTION__);
+ dprintk("%s() Flushing property cache\n", __func__);
memset(&fe->dtv_property_cache, 0, sizeof(struct dtv_frontend_properties));
fe->dtv_property_cache.state = tvp->cmd;
fe->dtv_property_cache.delivery_system = SYS_UNDEFINED;
* ioctl.
*/
fe->dtv_property_cache.state = tvp->cmd;
- printk("%s() Finalised property cache\n", __FUNCTION__);
+ dprintk("%s() Finalised property cache\n", __func__);
dtv_property_cache_submit(fe);
r |= dvb_frontend_ioctl_legacy(inode, file, FE_SET_FRONTEND,
r = dvb_frontend_ioctl_legacy(inode, file, FE_SET_TONE,
(void *)fe->dtv_property_cache.sectone);
break;
+ case DTV_CODE_RATE_HP:
+ fe->dtv_property_cache.code_rate_HP = tvp->u.data;
+ break;
+ case DTV_CODE_RATE_LP:
+ fe->dtv_property_cache.code_rate_LP = tvp->u.data;
+ break;
+ case DTV_GUARD_INTERVAL:
+ fe->dtv_property_cache.guard_interval = tvp->u.data;
+ break;
+ case DTV_TRANSMISSION_MODE:
+ fe->dtv_property_cache.transmission_mode = tvp->u.data;
+ break;
+ case DTV_HIERARCHY:
+ fe->dtv_property_cache.hierarchy = tvp->u.data;
+ break;
default:
r = -1;
}
dprintk("%s\n", __func__);
if(cmd == FE_SET_PROPERTY) {
- printk("%s() FE_SET_PROPERTY\n", __FUNCTION__);
-
tvps = (struct dtv_properties __user *)parg;
- printk("%s() properties.num = %d\n", __FUNCTION__, tvps->num);
- printk("%s() properties.props = %p\n", __FUNCTION__, tvps->props);
+ dprintk("%s() properties.num = %d\n", __func__, tvps->num);
+ dprintk("%s() properties.props = %p\n", __func__, tvps->props);
/* Put an arbitrary limit on the number of messages that can
* be sent at once */
- if (tvps->num > DTV_IOCTL_MAX_MSGS)
+ if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS))
return -EINVAL;
tvp = (struct dtv_property *) kmalloc(tvps->num *
err |= (tvp + i)->result;
}
- if(fe->dtv_property_cache.state == DTV_TUNE) {
- printk("%s() Property cache is full, tuning\n", __FUNCTION__);
- }
+ if(fe->dtv_property_cache.state == DTV_TUNE)
+ dprintk("%s() Property cache is full, tuning\n", __func__);
} else
if(cmd == FE_GET_PROPERTY) {
- printk("%s() FE_GET_PROPERTY\n", __FUNCTION__);
tvps = (struct dtv_properties __user *)parg;
- printk("%s() properties.num = %d\n", __FUNCTION__, tvps->num);
- printk("%s() properties.props = %p\n", __FUNCTION__, tvps->props);
+ dprintk("%s() properties.num = %d\n", __func__, tvps->num);
+ dprintk("%s() properties.props = %p\n", __func__, tvps->props);
/* Put an arbitrary limit on the number of messages that can
* be sent at once */
- if (tvps->num > DTV_IOCTL_MAX_MSGS)
+ if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS))
return -EINVAL;
tvp = (struct dtv_property *) kmalloc(tvps->num *
fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000;
fepriv->state = FESTATE_RETUNE;
+
+ /* Request the search algorithm to search */
+ fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN;
+
dvb_frontend_wakeup(fe);
dvb_frontend_add_event(fe, 0);
fepriv->status = 0;
struct dvb_device *dvbdev = file->private_data;
struct dvb_frontend *fe = dvbdev->priv;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
+ struct dvb_adapter *adapter = fe->dvb;
int ret;
dprintk ("%s\n", __func__);
+ if (adapter->mfe_shared) {
+ mutex_lock (&adapter->mfe_lock);
+
+ if (adapter->mfe_dvbdev == NULL)
+ adapter->mfe_dvbdev = dvbdev;
+
+ else if (adapter->mfe_dvbdev != dvbdev) {
+ struct dvb_device
+ *mfedev = adapter->mfe_dvbdev;
+ struct dvb_frontend
+ *mfe = mfedev->priv;
+ struct dvb_frontend_private
+ *mfepriv = mfe->frontend_priv;
+ int mferetry = (dvb_mfe_wait_time << 1);
+
+ mutex_unlock (&adapter->mfe_lock);
+ while (mferetry-- && (mfedev->users != -1 ||
+ mfepriv->thread != NULL)) {
+ if(msleep_interruptible(500)) {
+ if(signal_pending(current))
+ return -EINTR;
+ }
+ }
+
+ mutex_lock (&adapter->mfe_lock);
+ if(adapter->mfe_dvbdev != dvbdev) {
+ mfedev = adapter->mfe_dvbdev;
+ mfe = mfedev->priv;
+ mfepriv = mfe->frontend_priv;
+ if (mfedev->users != -1 ||
+ mfepriv->thread != NULL) {
+ mutex_unlock (&adapter->mfe_lock);
+ return -EBUSY;
+ }
+ adapter->mfe_dvbdev = dvbdev;
+ }
+ }
+ }
+
if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) {
if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0)
- return ret;
+ goto err0;
}
if ((ret = dvb_generic_open (inode, file)) < 0)
fepriv->events.eventr = fepriv->events.eventw = 0;
}
+ if (adapter->mfe_shared)
+ mutex_unlock (&adapter->mfe_lock);
return ret;
err2:
err1:
if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl)
fe->ops.ts_bus_ctrl(fe, 0);
+err0:
+ if (adapter->mfe_shared)
+ mutex_unlock (&adapter->mfe_lock);
return ret;
}
return ret;
}
-static struct file_operations dvb_frontend_fops = {
+static const struct file_operations dvb_frontend_fops = {
.owner = THIS_MODULE,
.ioctl = dvb_generic_ioctl,
.poll = dvb_frontend_poll,
fe->dvb = dvb;
fepriv->inversion = INVERSION_OFF;
- printk ("DVB: registering frontend %i (%s)...\n",
+ printk ("DVB: registering adapter %i frontend %i (%s)...\n",
fe->dvb->num,
+ fe->id,
fe->ops.info.name);
dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff