* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*/
+/* Enables DVBv3 compatibility bits at the headers */
+#define __DVB_CORE__
+
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/slab.h>
#include <linux/poll.h>
+#include <linux/semaphore.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/freezer.h>
#define FESTATE_ZIGZAG_FAST 32
#define FESTATE_ZIGZAG_SLOW 64
#define FESTATE_DISEQC 128
+#define FESTATE_ERROR 256
#define FESTATE_WAITFORLOCK (FESTATE_TUNING_FAST | FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW | FESTATE_DISEQC)
#define FESTATE_SEARCHING_FAST (FESTATE_TUNING_FAST | FESTATE_ZIGZAG_FAST)
#define FESTATE_SEARCHING_SLOW (FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_SLOW)
* FESTATE_LOSTLOCK. When the lock has been lost, and we're searching it again.
*/
+#define DVB_FE_NO_EXIT 0
+#define DVB_FE_NORMAL_EXIT 1
+#define DVB_FE_DEVICE_REMOVED 2
+
static DEFINE_MUTEX(frontend_mutex);
struct dvb_frontend_private {
/* thread/frontend values */
struct dvb_device *dvbdev;
- struct dvb_frontend_parameters parameters;
+ struct dvb_frontend_parameters parameters_out;
struct dvb_fe_events events;
struct semaphore sem;
struct list_head list_head;
};
static void dvb_frontend_wakeup(struct dvb_frontend *fe);
+static int dtv_get_frontend(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *p_out);
+static int dtv_property_legacy_params_sync(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *p);
+
+static bool has_get_frontend(struct dvb_frontend *fe)
+{
+ return fe->ops.get_frontend != NULL;
+}
+
+/*
+ * Due to DVBv3 API calls, a delivery system should be mapped into one of
+ * the 4 DVBv3 delivery systems (FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC),
+ * otherwise, a DVBv3 call will fail.
+ */
+enum dvbv3_emulation_type {
+ DVBV3_UNKNOWN,
+ DVBV3_QPSK,
+ DVBV3_QAM,
+ DVBV3_OFDM,
+ DVBV3_ATSC,
+};
+
+static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system)
+{
+ switch (delivery_system) {
+ case SYS_DVBC_ANNEX_A:
+ case SYS_DVBC_ANNEX_C:
+ return DVBV3_QAM;
+ case SYS_DVBS:
+ case SYS_DVBS2:
+ case SYS_TURBO:
+ case SYS_ISDBS:
+ case SYS_DSS:
+ return DVBV3_QPSK;
+ case SYS_DVBT:
+ case SYS_DVBT2:
+ case SYS_ISDBT:
+ case SYS_DMBTH:
+ return DVBV3_OFDM;
+ case SYS_ATSC:
+ case SYS_DVBC_ANNEX_B:
+ return DVBV3_ATSC;
+ case SYS_UNDEFINED:
+ case SYS_ISDBC:
+ case SYS_DVBH:
+ case SYS_DAB:
+ case SYS_ATSCMH:
+ default:
+ /*
+ * Doesn't know how to emulate those types and/or
+ * there's no frontend driver from this type yet
+ * with some emulation code, so, we're not sure yet how
+ * to handle them, or they're not compatible with a DVBv3 call.
+ */
+ return DVBV3_UNKNOWN;
+ }
+}
static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status)
{
dprintk ("%s\n", __func__);
- if (mutex_lock_interruptible (&events->mtx))
- return;
+ if ((status & FE_HAS_LOCK) && has_get_frontend(fe))
+ dtv_get_frontend(fe, &fepriv->parameters_out);
- wp = (events->eventw + 1) % MAX_EVENT;
+ mutex_lock(&events->mtx);
+ wp = (events->eventw + 1) % MAX_EVENT;
if (wp == events->eventr) {
events->overflow = 1;
events->eventr = (events->eventr + 1) % MAX_EVENT;
}
e = &events->events[events->eventw];
-
- memcpy (&e->parameters, &fepriv->parameters,
- sizeof (struct dvb_frontend_parameters));
-
- if (status & FE_HAS_LOCK)
- if (fe->ops.get_frontend)
- fe->ops.get_frontend(fe, &e->parameters);
+ e->status = status;
+ e->parameters = fepriv->parameters_out;
events->eventw = wp;
mutex_unlock(&events->mtx);
- e->status = status;
-
wake_up_interruptible (&events->wait_queue);
}
return ret;
}
- if (mutex_lock_interruptible (&events->mtx))
- return -ERESTARTSYS;
-
- memcpy (event, &events->events[events->eventr],
- sizeof(struct dvb_frontend_event));
-
+ mutex_lock(&events->mtx);
+ *event = events->events[events->eventr];
events->eventr = (events->eventr + 1) % MAX_EVENT;
-
mutex_unlock(&events->mtx);
return 0;
}
+static void dvb_frontend_clear_events(struct dvb_frontend *fe)
+{
+ struct dvb_frontend_private *fepriv = fe->frontend_priv;
+ struct dvb_fe_events *events = &fepriv->events;
+
+ mutex_lock(&events->mtx);
+ events->eventr = events->eventw;
+ mutex_unlock(&events->mtx);
+}
+
static void dvb_frontend_init(struct dvb_frontend *fe)
{
dprintk ("DVB: initialising adapter %i frontend %i (%s)...\n",
{
int autoinversion;
int ready = 0;
+ int fe_set_err = 0;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
- int original_inversion = fepriv->parameters.inversion;
- u32 original_frequency = fepriv->parameters.frequency;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp;
+ int original_inversion = c->inversion;
+ u32 original_frequency = c->frequency;
/* are we using autoinversion? */
autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) &&
- (fepriv->parameters.inversion == INVERSION_AUTO));
+ (c->inversion == INVERSION_AUTO));
/* setup parameters correctly */
while(!ready) {
fepriv->auto_step, fepriv->auto_sub_step, fepriv->started_auto_step);
/* set the frontend itself */
- fepriv->parameters.frequency += fepriv->lnb_drift;
+ c->frequency += fepriv->lnb_drift;
if (autoinversion)
- fepriv->parameters.inversion = fepriv->inversion;
+ c->inversion = fepriv->inversion;
+ tmp = *c;
if (fe->ops.set_frontend)
- fe->ops.set_frontend(fe, &fepriv->parameters);
+ fe_set_err = fe->ops.set_frontend(fe);
+ *c = tmp;
+ if (fe_set_err < 0) {
+ fepriv->state = FESTATE_ERROR;
+ return fe_set_err;
+ }
- fepriv->parameters.frequency = original_frequency;
- fepriv->parameters.inversion = original_inversion;
+ c->frequency = original_frequency;
+ c->inversion = original_inversion;
fepriv->auto_sub_step++;
return 0;
static void dvb_frontend_swzigzag(struct dvb_frontend *fe)
{
fe_status_t s = 0;
+ int retval = 0;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp;
/* if we've got no parameters, just keep idling */
if (fepriv->state & FESTATE_IDLE) {
/* in SCAN mode, we just set the frontend when asked and leave it alone */
if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) {
if (fepriv->state & FESTATE_RETUNE) {
+ tmp = *c;
if (fe->ops.set_frontend)
- fe->ops.set_frontend(fe, &fepriv->parameters);
- fepriv->state = FESTATE_TUNED;
+ retval = fe->ops.set_frontend(fe);
+ *c = tmp;
+ if (retval < 0)
+ fepriv->state = FESTATE_ERROR;
+ else
+ fepriv->state = FESTATE_TUNED;
}
fepriv->delay = 3*HZ;
fepriv->quality = 0;
/* if we're tuned, then we have determined the correct inversion */
if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) &&
- (fepriv->parameters.inversion == INVERSION_AUTO)) {
- fepriv->parameters.inversion = fepriv->inversion;
+ (c->inversion == INVERSION_AUTO)) {
+ c->inversion = fepriv->inversion;
}
return;
}
if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) {
fepriv->delay = fepriv->min_delay;
- /* peform a tune */
- if (dvb_frontend_swzigzag_autotune(fe, fepriv->check_wrapped)) {
+ /* perform a tune */
+ retval = dvb_frontend_swzigzag_autotune(fe,
+ fepriv->check_wrapped);
+ if (retval < 0) {
+ return;
+ } else if (retval) {
/* OK, if we've run out of trials at the fast speed.
* Drop back to slow for the _next_ attempt */
fepriv->state = FESTATE_SEARCHING_SLOW;
{
struct dvb_frontend_private *fepriv = fe->frontend_priv;
- if (fepriv->exit)
+ if (fepriv->exit != DVB_FE_NO_EXIT)
return 1;
if (fepriv->dvbdev->writers == 1)
- if (time_after(jiffies, fepriv->release_jiffies +
+ if (time_after_eq(jiffies, fepriv->release_jiffies +
dvb_shutdown_timeout * HZ))
return 1;
{
struct dvb_frontend *fe = data;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
- unsigned long timeout;
fe_status_t s;
enum dvbfe_algo algo;
- struct dvb_frontend_parameters *params;
+ bool re_tune = false;
dprintk("%s\n", __func__);
while (1) {
up(&fepriv->sem); /* is locked when we enter the thread... */
restart:
- timeout = wait_event_interruptible_timeout(fepriv->wait_queue,
+ wait_event_interruptible_timeout(fepriv->wait_queue,
dvb_frontend_should_wakeup(fe) || kthread_should_stop()
|| freezing(current),
fepriv->delay);
if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) {
/* got signal or quitting */
+ fepriv->exit = DVB_FE_NORMAL_EXIT;
break;
}
if (fepriv->reinitialise) {
dvb_frontend_init(fe);
- if (fepriv->tone != -1) {
+ if (fe->ops.set_tone && fepriv->tone != -1)
fe->ops.set_tone(fe, fepriv->tone);
- }
- if (fepriv->voltage != -1) {
+ if (fe->ops.set_voltage && fepriv->voltage != -1)
fe->ops.set_voltage(fe, fepriv->voltage);
- }
fepriv->reinitialise = 0;
}
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;
+ re_tune = true;
fepriv->state = FESTATE_TUNED;
+ } else {
+ re_tune = false;
}
if (fe->ops.tune)
- fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s);
+ fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s);
- if (s != fepriv->status) {
+ 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;
dvb_frontend_swzigzag(fe);
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__);
*/
if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) {
if (fe->ops.search) {
- fepriv->algo_status = fe->ops.search(fe, &fepriv->parameters);
+ fepriv->algo_status = fe->ops.search(fe);
/* We did do a search as was requested, the flags are
* now unset as well and has the flags wrt to search.
*/
}
}
/* 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 {
+ if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) {
fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN;
fepriv->delay = HZ / 2;
}
+ dtv_property_legacy_params_sync(fe, &fepriv->parameters_out);
fe->ops.read_status(fe, &s);
if (s != fepriv->status) {
dvb_frontend_add_event(fe, s); /* update event list */
}
fepriv->thread = NULL;
+ if (kthread_should_stop())
+ fepriv->exit = DVB_FE_DEVICE_REMOVED;
+ else
+ fepriv->exit = DVB_FE_NO_EXIT;
mb();
dvb_frontend_wakeup(fe);
dprintk ("%s\n", __func__);
- fepriv->exit = 1;
+ fepriv->exit = DVB_FE_NORMAL_EXIT;
mb();
if (!fepriv->thread)
kthread_stop(fepriv->thread);
- init_MUTEX (&fepriv->sem);
+ sema_init(&fepriv->sem, 1);
fepriv->state = FESTATE_IDLE;
/* paranoia check in case a signal arrived */
dprintk ("%s\n", __func__);
if (fepriv->thread) {
- if (!fepriv->exit)
+ if (fepriv->exit == DVB_FE_NO_EXIT)
return 0;
else
dvb_frontend_stop (fe);
return -EINTR;
fepriv->state = FESTATE_IDLE;
- fepriv->exit = 0;
+ fepriv->exit = DVB_FE_NO_EXIT;
fepriv->thread = NULL;
mb();
return 0;
}
-static void dvb_frontend_get_frequeny_limits(struct dvb_frontend *fe,
+static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe,
u32 *freq_min, u32 *freq_max)
{
*freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min);
fe->dvb->num,fe->id);
}
-static int dvb_frontend_check_parameters(struct dvb_frontend *fe,
- struct dvb_frontend_parameters *parms)
+static int dvb_frontend_check_parameters(struct dvb_frontend *fe)
{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
u32 freq_min;
u32 freq_max;
/* range check: frequency */
- dvb_frontend_get_frequeny_limits(fe, &freq_min, &freq_max);
- if ((freq_min && parms->frequency < freq_min) ||
- (freq_max && parms->frequency > freq_max)) {
+ dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max);
+ if ((freq_min && c->frequency < freq_min) ||
+ (freq_max && c->frequency > 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);
+ fe->dvb->num, fe->id, c->frequency, freq_min, freq_max);
return -EINVAL;
}
/* range check: symbol rate */
- if (fe->ops.info.type == FE_QPSK) {
+ switch (c->delivery_system) {
+ case SYS_DVBS:
+ case SYS_DVBS2:
+ case SYS_TURBO:
+ case SYS_DVBC_ANNEX_A:
+ case SYS_DVBC_ANNEX_C:
if ((fe->ops.info.symbol_rate_min &&
- parms->u.qpsk.symbol_rate < fe->ops.info.symbol_rate_min) ||
+ c->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)) {
+ c->symbol_rate > fe->ops.info.symbol_rate_max)) {
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);
+ fe->dvb->num, fe->id, c->symbol_rate,
+ fe->ops.info.symbol_rate_min,
+ fe->ops.info.symbol_rate_max);
return -EINVAL;
}
+ default:
+ break;
+ }
- } else if (fe->ops.info.type == FE_QAM) {
- if ((fe->ops.info.symbol_rate_min &&
- 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: 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;
+}
+
+static int dvb_frontend_clear_cache(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ int i;
+ u32 delsys;
+
+ delsys = c->delivery_system;
+ memset(c, 0, sizeof(struct dtv_frontend_properties));
+ c->delivery_system = delsys;
+
+ c->state = DTV_CLEAR;
+
+ dprintk("%s() Clearing cache for delivery system %d\n", __func__,
+ c->delivery_system);
+
+ c->transmission_mode = TRANSMISSION_MODE_AUTO;
+ c->bandwidth_hz = 0; /* AUTO */
+ c->guard_interval = GUARD_INTERVAL_AUTO;
+ c->hierarchy = HIERARCHY_AUTO;
+ c->symbol_rate = 0;
+ c->code_rate_HP = FEC_AUTO;
+ c->code_rate_LP = FEC_AUTO;
+ c->fec_inner = FEC_AUTO;
+ c->rolloff = ROLLOFF_AUTO;
+ c->voltage = SEC_VOLTAGE_OFF;
+ c->sectone = SEC_TONE_OFF;
+ c->pilot = PILOT_AUTO;
+
+ c->isdbt_partial_reception = 0;
+ c->isdbt_sb_mode = 0;
+ c->isdbt_sb_subchannel = 0;
+ c->isdbt_sb_segment_idx = 0;
+ c->isdbt_sb_segment_count = 0;
+ c->isdbt_layer_enabled = 0;
+ for (i = 0; i < 3; i++) {
+ c->layer[i].fec = FEC_AUTO;
+ c->layer[i].modulation = QAM_AUTO;
+ c->layer[i].interleaving = 0;
+ c->layer[i].segment_count = 0;
+ }
+
+ c->isdbs_ts_id = 0;
+ c->dvbt2_plp_id = 0;
+
+ switch (c->delivery_system) {
+ case SYS_DVBS:
+ case SYS_DVBS2:
+ case SYS_TURBO:
+ c->modulation = QPSK; /* implied for DVB-S in legacy API */
+ c->rolloff = ROLLOFF_35;/* implied for DVB-S */
+ break;
+ case SYS_ATSC:
+ c->modulation = VSB_8;
+ break;
+ default:
+ c->modulation = QAM_AUTO;
+ break;
}
return 0;
}
-struct dtv_cmds_h dtv_cmds[] = {
- [DTV_TUNE] = {
- .name = "DTV_TUNE",
- .cmd = DTV_TUNE,
- .set = 1,
- },
- [DTV_CLEAR] = {
- .name = "DTV_CLEAR",
- .cmd = DTV_CLEAR,
- .set = 1,
- },
+#define _DTV_CMD(n, s, b) \
+[n] = { \
+ .name = #n, \
+ .cmd = n, \
+ .set = s,\
+ .buffer = b \
+}
+
+static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = {
+ _DTV_CMD(DTV_TUNE, 1, 0),
+ _DTV_CMD(DTV_CLEAR, 1, 0),
/* Set */
- [DTV_FREQUENCY] = {
- .name = "DTV_FREQUENCY",
- .cmd = DTV_FREQUENCY,
- .set = 1,
- },
- [DTV_BANDWIDTH_HZ] = {
- .name = "DTV_BANDWIDTH_HZ",
- .cmd = DTV_BANDWIDTH_HZ,
- .set = 1,
- },
- [DTV_MODULATION] = {
- .name = "DTV_MODULATION",
- .cmd = DTV_MODULATION,
- .set = 1,
- },
- [DTV_INVERSION] = {
- .name = "DTV_INVERSION",
- .cmd = DTV_INVERSION,
- .set = 1,
- },
- [DTV_DISEQC_MASTER] = {
- .name = "DTV_DISEQC_MASTER",
- .cmd = DTV_DISEQC_MASTER,
- .set = 1,
- .buffer = 1,
- },
- [DTV_SYMBOL_RATE] = {
- .name = "DTV_SYMBOL_RATE",
- .cmd = DTV_SYMBOL_RATE,
- .set = 1,
- },
- [DTV_INNER_FEC] = {
- .name = "DTV_INNER_FEC",
- .cmd = DTV_INNER_FEC,
- .set = 1,
- },
- [DTV_VOLTAGE] = {
- .name = "DTV_VOLTAGE",
- .cmd = DTV_VOLTAGE,
- .set = 1,
- },
- [DTV_TONE] = {
- .name = "DTV_TONE",
- .cmd = DTV_TONE,
- .set = 1,
- },
- [DTV_PILOT] = {
- .name = "DTV_PILOT",
- .cmd = DTV_PILOT,
- .set = 1,
- },
- [DTV_ROLLOFF] = {
- .name = "DTV_ROLLOFF",
- .cmd = DTV_ROLLOFF,
- .set = 1,
- },
- [DTV_DELIVERY_SYSTEM] = {
- .name = "DTV_DELIVERY_SYSTEM",
- .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,
- },
+ _DTV_CMD(DTV_FREQUENCY, 1, 0),
+ _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0),
+ _DTV_CMD(DTV_MODULATION, 1, 0),
+ _DTV_CMD(DTV_INVERSION, 1, 0),
+ _DTV_CMD(DTV_DISEQC_MASTER, 1, 1),
+ _DTV_CMD(DTV_SYMBOL_RATE, 1, 0),
+ _DTV_CMD(DTV_INNER_FEC, 1, 0),
+ _DTV_CMD(DTV_VOLTAGE, 1, 0),
+ _DTV_CMD(DTV_TONE, 1, 0),
+ _DTV_CMD(DTV_PILOT, 1, 0),
+ _DTV_CMD(DTV_ROLLOFF, 1, 0),
+ _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0),
+ _DTV_CMD(DTV_HIERARCHY, 1, 0),
+ _DTV_CMD(DTV_CODE_RATE_HP, 1, 0),
+ _DTV_CMD(DTV_CODE_RATE_LP, 1, 0),
+ _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0),
+ _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0),
+
+ _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0),
+ _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0),
+ _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0),
+ _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0),
+ _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0),
+ _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0),
+
+ _DTV_CMD(DTV_ISDBS_TS_ID, 1, 0),
+ _DTV_CMD(DTV_DVBT2_PLP_ID, 1, 0),
+
/* Get */
- [DTV_DISEQC_SLAVE_REPLY] = {
- .name = "DTV_DISEQC_SLAVE_REPLY",
- .cmd = 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,
- },
+ _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1),
+ _DTV_CMD(DTV_API_VERSION, 0, 0),
+ _DTV_CMD(DTV_CODE_RATE_HP, 0, 0),
+ _DTV_CMD(DTV_CODE_RATE_LP, 0, 0),
+ _DTV_CMD(DTV_GUARD_INTERVAL, 0, 0),
+ _DTV_CMD(DTV_TRANSMISSION_MODE, 0, 0),
+ _DTV_CMD(DTV_HIERARCHY, 0, 0),
+
+ _DTV_CMD(DTV_ENUM_DELSYS, 0, 0),
};
-void dtv_property_dump(struct dtv_property *tvp)
+static void dtv_property_dump(struct dtv_property *tvp)
{
int i;
dprintk("%s() tvp.u.data = 0x%08x\n", __func__, tvp->u.data);
}
-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_ATSC))
- return 1;
-
- return 0;
-}
-
/* Synchronise the legacy tuning parameters into the cache, so that demodulator
* 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 int dtv_property_cache_sync(struct dvb_frontend *fe,
+ struct dtv_frontend_properties *c,
+ const struct dvb_frontend_parameters *p)
{
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-
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 */
+ switch (dvbv3_type(c->delivery_system)) {
+ case DVBV3_QPSK:
+ dprintk("%s() Preparing QPSK req\n", __func__);
c->symbol_rate = p->u.qpsk.symbol_rate;
c->fec_inner = p->u.qpsk.fec_inner;
- c->delivery_system = SYS_DVBS;
break;
- case FE_QAM:
+ case DVBV3_QAM:
+ dprintk("%s() Preparing QAM req\n", __func__);
c->symbol_rate = p->u.qam.symbol_rate;
c->fec_inner = p->u.qam.fec_inner;
c->modulation = p->u.qam.modulation;
- c->delivery_system = SYS_DVBC_ANNEX_AC;
break;
- case FE_OFDM:
- if (p->u.ofdm.bandwidth == BANDWIDTH_6_MHZ)
- c->bandwidth_hz = 6000000;
- else if (p->u.ofdm.bandwidth == BANDWIDTH_7_MHZ)
- c->bandwidth_hz = 7000000;
- else if (p->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
+ case DVBV3_OFDM:
+ dprintk("%s() Preparing OFDM req\n", __func__);
+ switch (p->u.ofdm.bandwidth) {
+ case BANDWIDTH_10_MHZ:
+ c->bandwidth_hz = 10000000;
+ break;
+ case BANDWIDTH_8_MHZ:
c->bandwidth_hz = 8000000;
- else
- /* Including BANDWIDTH_AUTO */
+ break;
+ case BANDWIDTH_7_MHZ:
+ c->bandwidth_hz = 7000000;
+ break;
+ case BANDWIDTH_6_MHZ:
+ c->bandwidth_hz = 6000000;
+ break;
+ case BANDWIDTH_5_MHZ:
+ c->bandwidth_hz = 5000000;
+ break;
+ case BANDWIDTH_1_712_MHZ:
+ c->bandwidth_hz = 1712000;
+ break;
+ case BANDWIDTH_AUTO:
c->bandwidth_hz = 0;
+ }
+
c->code_rate_HP = p->u.ofdm.code_rate_HP;
c->code_rate_LP = p->u.ofdm.code_rate_LP;
c->modulation = p->u.ofdm.constellation;
c->transmission_mode = p->u.ofdm.transmission_mode;
c->guard_interval = p->u.ofdm.guard_interval;
c->hierarchy = p->u.ofdm.hierarchy_information;
- c->delivery_system = SYS_DVBT;
break;
- case FE_ATSC:
+ case DVBV3_ATSC:
+ dprintk("%s() Preparing ATSC req\n", __func__);
c->modulation = p->u.vsb.modulation;
if ((c->modulation == VSB_8) || (c->modulation == VSB_16))
c->delivery_system = SYS_ATSC;
else
c->delivery_system = SYS_DVBC_ANNEX_B;
break;
+ case DVBV3_UNKNOWN:
+ printk(KERN_ERR
+ "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n",
+ __func__, c->delivery_system);
+ return -EINVAL;
}
+
+ return 0;
}
/* 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 int dtv_property_legacy_params_sync(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *p)
{
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- struct dvb_frontend_private *fepriv = fe->frontend_priv;
- struct dvb_frontend_parameters *p = &fepriv->parameters;
+ const struct dtv_frontend_properties *c = &fe->dtv_property_cache;
p->frequency = c->frequency;
p->inversion = c->inversion;
- switch (fe->ops.info.type) {
- case FE_QPSK:
+ switch (dvbv3_type(c->delivery_system)) {
+ case DVBV3_UNKNOWN:
+ printk(KERN_ERR
+ "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n",
+ __func__, c->delivery_system);
+ return -EINVAL;
+ case DVBV3_QPSK:
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:
+ case DVBV3_QAM:
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:
+ case DVBV3_OFDM:
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)
- p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ;
- else if (c->bandwidth_hz == 8000000)
+
+ switch (c->bandwidth_hz) {
+ case 10000000:
+ p->u.ofdm.bandwidth = BANDWIDTH_10_MHZ;
+ break;
+ case 8000000:
p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ;
- else
+ break;
+ case 7000000:
+ p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ;
+ break;
+ case 6000000:
+ p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ;
+ break;
+ case 5000000:
+ p->u.ofdm.bandwidth = BANDWIDTH_5_MHZ;
+ break;
+ case 1712000:
+ p->u.ofdm.bandwidth = BANDWIDTH_1_712_MHZ;
+ break;
+ case 0:
+ default:
p->u.ofdm.bandwidth = BANDWIDTH_AUTO;
+ }
p->u.ofdm.code_rate_HP = c->code_rate_HP;
p->u.ofdm.code_rate_LP = c->code_rate_LP;
p->u.ofdm.constellation = c->modulation;
p->u.ofdm.transmission_mode = c->transmission_mode;
p->u.ofdm.guard_interval = c->guard_interval;
p->u.ofdm.hierarchy_information = c->hierarchy;
- c->delivery_system = SYS_DVBT;
break;
- case FE_ATSC:
+ case DVBV3_ATSC:
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;
- else
- c->delivery_system = SYS_DVBC_ANNEX_B;
break;
}
+ return 0;
}
-/* Ensure the cached values are set correctly in the frontend
- * legacy tuning structures, for the legacy tuning API.
+/**
+ * dtv_get_frontend - calls a callback for retrieving DTV parameters
+ * @fe: struct dvb_frontend pointer
+ * @c: struct dtv_frontend_properties pointer (DVBv5 cache)
+ * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct)
+ *
+ * This routine calls either the DVBv3 or DVBv5 get_frontend call.
+ * If c is not null, it will update the DVBv5 cache struct pointed by it.
+ * If p_out is not null, it will update the DVBv3 params pointed by it.
*/
-void dtv_property_adv_params_sync(struct dvb_frontend *fe)
+static int dtv_get_frontend(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *p_out)
{
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- struct dvb_frontend_private *fepriv = fe->frontend_priv;
- struct dvb_frontend_parameters *p = &fepriv->parameters;
-
- p->frequency = c->frequency;
- p->inversion = c->inversion;
-
- switch(c->modulation) {
- 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;
- default:
- break;
+ int r;
+
+ if (fe->ops.get_frontend) {
+ r = fe->ops.get_frontend(fe);
+ if (unlikely(r < 0))
+ return r;
+ if (p_out)
+ dtv_property_legacy_params_sync(fe, p_out);
+ return 0;
}
- if(c->delivery_system == SYS_ISDBT) {
- /* Fake out a generic DVB-T request so we pass validation in the ioctl */
- p->frequency = c->frequency;
- p->inversion = INVERSION_AUTO;
- p->u.ofdm.constellation = QAM_AUTO;
- p->u.ofdm.code_rate_HP = FEC_AUTO;
- p->u.ofdm.code_rate_LP = FEC_AUTO;
- p->u.ofdm.bandwidth = BANDWIDTH_AUTO;
- p->u.ofdm.transmission_mode = TRANSMISSION_MODE_AUTO;
- p->u.ofdm.guard_interval = GUARD_INTERVAL_AUTO;
- p->u.ofdm.hierarchy_information = HIERARCHY_AUTO;
- }
-}
-
-void dtv_property_cache_submit(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-
- /* 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)) {
-
- dprintk("%s() legacy, modulation = %d\n", __func__, c->modulation);
- dtv_property_legacy_params_sync(fe);
-
- } else {
- dprintk("%s() adv, modulation = %d\n", __func__, c->modulation);
-
- /* For advanced delivery systems / modulation types ...
- * we seed the lecacy dvb_frontend_parameters structure
- * so that the sanity checking code later in the IOCTL processing
- * can validate our basic frequency ranges, symbolrates, modulation
- * etc.
- */
- dtv_property_adv_params_sync(fe);
- }
+ /* As everything is in cache, get_frontend fops are always supported */
+ return 0;
}
-static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file,
+static int dvb_frontend_ioctl_legacy(struct file *file,
unsigned int cmd, void *parg);
-static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file,
+static int dvb_frontend_ioctl_properties(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,
+ const struct dtv_frontend_properties *c,
+ struct dtv_property *tvp,
+ struct file *file)
{
- int r = 0;
-
- dtv_property_dump(tvp);
-
- /* Allow the frontend to validate incoming properties */
- if (fe->ops.get_property)
- r = fe->ops.get_property(fe, tvp);
-
- if (r < 0)
- return r;
+ int r, ncaps;
switch(tvp->cmd) {
+ case DTV_ENUM_DELSYS:
+ ncaps = 0;
+ while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) {
+ tvp->u.buffer.data[ncaps] = fe->ops.delsys[ncaps];
+ ncaps++;
+ }
+ tvp->u.buffer.len = ncaps;
+ break;
case DTV_FREQUENCY:
- tvp->u.data = fe->dtv_property_cache.frequency;
+ tvp->u.data = c->frequency;
break;
case DTV_MODULATION:
- tvp->u.data = fe->dtv_property_cache.modulation;
+ tvp->u.data = c->modulation;
break;
case DTV_BANDWIDTH_HZ:
- tvp->u.data = fe->dtv_property_cache.bandwidth_hz;
+ tvp->u.data = c->bandwidth_hz;
break;
case DTV_INVERSION:
- tvp->u.data = fe->dtv_property_cache.inversion;
+ tvp->u.data = c->inversion;
break;
case DTV_SYMBOL_RATE:
- tvp->u.data = fe->dtv_property_cache.symbol_rate;
+ tvp->u.data = c->symbol_rate;
break;
case DTV_INNER_FEC:
- tvp->u.data = fe->dtv_property_cache.fec_inner;
+ tvp->u.data = c->fec_inner;
break;
case DTV_PILOT:
- tvp->u.data = fe->dtv_property_cache.pilot;
+ tvp->u.data = c->pilot;
break;
case DTV_ROLLOFF:
- tvp->u.data = fe->dtv_property_cache.rolloff;
+ tvp->u.data = c->rolloff;
break;
case DTV_DELIVERY_SYSTEM:
- tvp->u.data = fe->dtv_property_cache.delivery_system;
+ tvp->u.data = c->delivery_system;
break;
case DTV_VOLTAGE:
- tvp->u.data = fe->dtv_property_cache.voltage;
+ tvp->u.data = c->voltage;
break;
case DTV_TONE:
- tvp->u.data = fe->dtv_property_cache.sectone;
+ tvp->u.data = c->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;
+ tvp->u.data = c->code_rate_HP;
break;
case DTV_CODE_RATE_LP:
- tvp->u.data = fe->dtv_property_cache.code_rate_LP;
+ tvp->u.data = c->code_rate_LP;
break;
case DTV_GUARD_INTERVAL:
- tvp->u.data = fe->dtv_property_cache.guard_interval;
+ tvp->u.data = c->guard_interval;
break;
case DTV_TRANSMISSION_MODE:
- tvp->u.data = fe->dtv_property_cache.transmission_mode;
+ tvp->u.data = c->transmission_mode;
break;
case DTV_HIERARCHY:
- tvp->u.data = fe->dtv_property_cache.hierarchy;
+ tvp->u.data = c->hierarchy;
+ break;
+
+ /* ISDB-T Support here */
+ case DTV_ISDBT_PARTIAL_RECEPTION:
+ tvp->u.data = c->isdbt_partial_reception;
+ break;
+ case DTV_ISDBT_SOUND_BROADCASTING:
+ tvp->u.data = c->isdbt_sb_mode;
+ break;
+ case DTV_ISDBT_SB_SUBCHANNEL_ID:
+ tvp->u.data = c->isdbt_sb_subchannel;
+ break;
+ case DTV_ISDBT_SB_SEGMENT_IDX:
+ tvp->u.data = c->isdbt_sb_segment_idx;
+ break;
+ case DTV_ISDBT_SB_SEGMENT_COUNT:
+ tvp->u.data = c->isdbt_sb_segment_count;
+ break;
+ case DTV_ISDBT_LAYER_ENABLED:
+ tvp->u.data = c->isdbt_layer_enabled;
+ break;
+ case DTV_ISDBT_LAYERA_FEC:
+ tvp->u.data = c->layer[0].fec;
+ break;
+ case DTV_ISDBT_LAYERA_MODULATION:
+ tvp->u.data = c->layer[0].modulation;
+ break;
+ case DTV_ISDBT_LAYERA_SEGMENT_COUNT:
+ tvp->u.data = c->layer[0].segment_count;
+ break;
+ case DTV_ISDBT_LAYERA_TIME_INTERLEAVING:
+ tvp->u.data = c->layer[0].interleaving;
+ break;
+ case DTV_ISDBT_LAYERB_FEC:
+ tvp->u.data = c->layer[1].fec;
+ break;
+ case DTV_ISDBT_LAYERB_MODULATION:
+ tvp->u.data = c->layer[1].modulation;
+ break;
+ case DTV_ISDBT_LAYERB_SEGMENT_COUNT:
+ tvp->u.data = c->layer[1].segment_count;
+ break;
+ case DTV_ISDBT_LAYERB_TIME_INTERLEAVING:
+ tvp->u.data = c->layer[1].interleaving;
+ break;
+ case DTV_ISDBT_LAYERC_FEC:
+ tvp->u.data = c->layer[2].fec;
+ break;
+ case DTV_ISDBT_LAYERC_MODULATION:
+ tvp->u.data = c->layer[2].modulation;
+ break;
+ case DTV_ISDBT_LAYERC_SEGMENT_COUNT:
+ tvp->u.data = c->layer[2].segment_count;
+ break;
+ case DTV_ISDBT_LAYERC_TIME_INTERLEAVING:
+ tvp->u.data = c->layer[2].interleaving;
+ break;
+ case DTV_ISDBS_TS_ID:
+ tvp->u.data = c->isdbs_ts_id;
+ break;
+ case DTV_DVBT2_PLP_ID:
+ tvp->u.data = c->dvbt2_plp_id;
break;
default:
- r = -1;
+ return -EINVAL;
}
- return r;
+ /* Allow the frontend to override outgoing properties */
+ if (fe->ops.get_property) {
+ r = fe->ops.get_property(fe, tvp);
+ if (r < 0)
+ return r;
+ }
+
+ dtv_property_dump(tvp);
+
+ return 0;
+}
+
+static int dtv_set_frontend(struct dvb_frontend *fe);
+
+static bool is_dvbv3_delsys(u32 delsys)
+{
+ bool status;
+
+ status = (delsys == SYS_DVBT) || (delsys == SYS_DVBC_ANNEX_A) ||
+ (delsys == SYS_DVBS) || (delsys == SYS_ATSC);
+
+ return status;
+}
+
+static int set_delivery_system(struct dvb_frontend *fe, u32 desired_system)
+{
+ int ncaps, i;
+ u32 delsys = SYS_UNDEFINED;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ enum dvbv3_emulation_type type;
+
+ /*
+ * It was reported that some old DVBv5 applications were
+ * filling delivery_system with SYS_UNDEFINED. If this happens,
+ * assume that the application wants to use the first supported
+ * delivery system.
+ */
+ if (c->delivery_system == SYS_UNDEFINED)
+ c->delivery_system = fe->ops.delsys[0];
+
+ if (desired_system == SYS_UNDEFINED) {
+ /*
+ * A DVBv3 call doesn't know what's the desired system.
+ * Also, DVBv3 applications don't know that ops.info->type
+ * could be changed, and they simply dies when it doesn't
+ * match.
+ * So, don't change the current delivery system, as it
+ * may be trying to do the wrong thing, like setting an
+ * ISDB-T frontend as DVB-T. Instead, find the closest
+ * DVBv3 system that matches the delivery system.
+ */
+ if (is_dvbv3_delsys(c->delivery_system)) {
+ dprintk("%s() Using delivery system to %d\n",
+ __func__, c->delivery_system);
+ return 0;
+ }
+ type = dvbv3_type(c->delivery_system);
+ switch (type) {
+ case DVBV3_QPSK:
+ desired_system = SYS_DVBS;
+ break;
+ case DVBV3_QAM:
+ desired_system = SYS_DVBC_ANNEX_A;
+ break;
+ case DVBV3_ATSC:
+ desired_system = SYS_ATSC;
+ break;
+ case DVBV3_OFDM:
+ desired_system = SYS_DVBT;
+ break;
+ default:
+ dprintk("%s(): This frontend doesn't support DVBv3 calls\n",
+ __func__);
+ return -EINVAL;
+ }
+ /*
+ * Get a delivery system that is compatible with DVBv3
+ * NOTE: in order for this to work with softwares like Kaffeine that
+ * uses a DVBv5 call for DVB-S2 and a DVBv3 call to go back to
+ * DVB-S, drivers that support both should put the SYS_DVBS entry
+ * before the SYS_DVBS2, otherwise it won't switch back to DVB-S.
+ * The real fix is that userspace applications should not use DVBv3
+ * and not trust on calling FE_SET_FRONTEND to switch the delivery
+ * system.
+ */
+ ncaps = 0;
+ while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) {
+ if (fe->ops.delsys[ncaps] == desired_system) {
+ delsys = desired_system;
+ break;
+ }
+ ncaps++;
+ }
+ if (delsys == SYS_UNDEFINED) {
+ dprintk("%s() Couldn't find a delivery system that matches %d\n",
+ __func__, desired_system);
+ }
+ } else {
+ /*
+ * This is a DVBv5 call. So, it likely knows the supported
+ * delivery systems.
+ */
+
+ /* Check if the desired delivery system is supported */
+ ncaps = 0;
+ while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) {
+ if (fe->ops.delsys[ncaps] == desired_system) {
+ c->delivery_system = desired_system;
+ dprintk("%s() Changing delivery system to %d\n",
+ __func__, desired_system);
+ return 0;
+ }
+ ncaps++;
+ }
+ type = dvbv3_type(desired_system);
+
+ /*
+ * The delivery system is not supported. See if it can be
+ * emulated.
+ * The emulation only works if the desired system is one of the
+ * DVBv3 delivery systems
+ */
+ if (!is_dvbv3_delsys(desired_system)) {
+ dprintk("%s() can't use a DVBv3 FE_SET_FRONTEND call on this frontend\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ /*
+ * Get the last non-DVBv3 delivery system that has the same type
+ * of the desired system
+ */
+ ncaps = 0;
+ while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) {
+ if ((dvbv3_type(fe->ops.delsys[ncaps]) == type) &&
+ !is_dvbv3_delsys(fe->ops.delsys[ncaps]))
+ delsys = fe->ops.delsys[ncaps];
+ ncaps++;
+ }
+ /* There's nothing compatible with the desired delivery system */
+ if (delsys == SYS_UNDEFINED) {
+ dprintk("%s() Incompatible DVBv3 FE_SET_FRONTEND call for this frontend\n",
+ __func__);
+ return -EINVAL;
+ }
+ }
+
+ c->delivery_system = delsys;
+
+ /*
+ * The DVBv3 or DVBv5 call is requesting a different system. So,
+ * emulation is needed.
+ *
+ * Emulate newer delivery systems like ISDBT, DVBT and DMBTH
+ * for older DVBv5 applications. The emulation will try to use
+ * the auto mode for most things, and will assume that the desired
+ * delivery system is the last one at the ops.delsys[] array
+ */
+ dprintk("%s() Using delivery system %d emulated as if it were a %d\n",
+ __func__, delsys, desired_system);
+
+ /*
+ * For now, handles ISDB-T calls. More code may be needed here for the
+ * other emulated stuff
+ */
+ if (type == DVBV3_OFDM) {
+ if (c->delivery_system == SYS_ISDBT) {
+ dprintk("%s() Using defaults for SYS_ISDBT\n",
+ __func__);
+ if (!c->bandwidth_hz)
+ c->bandwidth_hz = 6000000;
+
+ c->isdbt_partial_reception = 0;
+ c->isdbt_sb_mode = 0;
+ c->isdbt_sb_subchannel = 0;
+ c->isdbt_sb_segment_idx = 0;
+ c->isdbt_sb_segment_count = 0;
+ c->isdbt_layer_enabled = 0;
+ for (i = 0; i < 3; i++) {
+ c->layer[i].fec = FEC_AUTO;
+ c->layer[i].modulation = QAM_AUTO;
+ c->layer[i].interleaving = 0;
+ c->layer[i].segment_count = 0;
+ }
+ }
+ }
+ dprintk("change delivery system on cache to %d\n", c->delivery_system);
+
+ return 0;
}
-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 file *file)
{
int r = 0;
- struct dvb_frontend_private *fepriv = fe->frontend_priv;
- dtv_property_dump(tvp);
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
/* Allow the frontend to validate incoming properties */
- if (fe->ops.set_property)
+ if (fe->ops.set_property) {
r = fe->ops.set_property(fe, tvp);
-
- if (r < 0)
- return r;
+ if (r < 0)
+ return r;
+ }
switch(tvp->cmd) {
case DTV_CLEAR:
- /* Reset a cache of data specific to the frontend here. This does
+ /*
+ * Reset a cache of data specific to the frontend here. This does
* not effect hardware.
*/
- 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;
+ dvb_frontend_clear_cache(fe);
break;
case DTV_TUNE:
/* interpret the cache of data, build either a traditional frontend
* tunerequest so we can pass validation in the FE_SET_FRONTEND
* ioctl.
*/
- fe->dtv_property_cache.state = tvp->cmd;
+ c->state = tvp->cmd;
dprintk("%s() Finalised property cache\n", __func__);
- dtv_property_cache_submit(fe);
- r |= dvb_frontend_ioctl_legacy(inode, file, FE_SET_FRONTEND,
- &fepriv->parameters);
+ r = dtv_set_frontend(fe);
break;
case DTV_FREQUENCY:
- fe->dtv_property_cache.frequency = tvp->u.data;
+ c->frequency = tvp->u.data;
break;
case DTV_MODULATION:
- fe->dtv_property_cache.modulation = tvp->u.data;
+ c->modulation = tvp->u.data;
break;
case DTV_BANDWIDTH_HZ:
- fe->dtv_property_cache.bandwidth_hz = tvp->u.data;
+ c->bandwidth_hz = tvp->u.data;
break;
case DTV_INVERSION:
- fe->dtv_property_cache.inversion = tvp->u.data;
+ c->inversion = tvp->u.data;
break;
case DTV_SYMBOL_RATE:
- fe->dtv_property_cache.symbol_rate = tvp->u.data;
+ c->symbol_rate = tvp->u.data;
break;
case DTV_INNER_FEC:
- fe->dtv_property_cache.fec_inner = tvp->u.data;
+ c->fec_inner = tvp->u.data;
break;
case DTV_PILOT:
- fe->dtv_property_cache.pilot = tvp->u.data;
+ c->pilot = tvp->u.data;
break;
case DTV_ROLLOFF:
- fe->dtv_property_cache.rolloff = tvp->u.data;
+ c->rolloff = tvp->u.data;
break;
case DTV_DELIVERY_SYSTEM:
- fe->dtv_property_cache.delivery_system = tvp->u.data;
+ r = set_delivery_system(fe, tvp->u.data);
break;
case DTV_VOLTAGE:
- fe->dtv_property_cache.voltage = tvp->u.data;
- r = dvb_frontend_ioctl_legacy(inode, file, FE_SET_VOLTAGE,
- (void *)fe->dtv_property_cache.voltage);
+ c->voltage = tvp->u.data;
+ r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE,
+ (void *)c->voltage);
break;
case DTV_TONE:
- fe->dtv_property_cache.sectone = tvp->u.data;
- r = dvb_frontend_ioctl_legacy(inode, file, FE_SET_TONE,
- (void *)fe->dtv_property_cache.sectone);
+ c->sectone = tvp->u.data;
+ r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE,
+ (void *)c->sectone);
break;
case DTV_CODE_RATE_HP:
- fe->dtv_property_cache.code_rate_HP = tvp->u.data;
+ c->code_rate_HP = tvp->u.data;
break;
case DTV_CODE_RATE_LP:
- fe->dtv_property_cache.code_rate_LP = tvp->u.data;
+ c->code_rate_LP = tvp->u.data;
break;
case DTV_GUARD_INTERVAL:
- fe->dtv_property_cache.guard_interval = tvp->u.data;
+ c->guard_interval = tvp->u.data;
break;
case DTV_TRANSMISSION_MODE:
- fe->dtv_property_cache.transmission_mode = tvp->u.data;
+ c->transmission_mode = tvp->u.data;
break;
case DTV_HIERARCHY:
- fe->dtv_property_cache.hierarchy = tvp->u.data;
+ c->hierarchy = tvp->u.data;
+ break;
+
+ /* ISDB-T Support here */
+ case DTV_ISDBT_PARTIAL_RECEPTION:
+ c->isdbt_partial_reception = tvp->u.data;
+ break;
+ case DTV_ISDBT_SOUND_BROADCASTING:
+ c->isdbt_sb_mode = tvp->u.data;
+ break;
+ case DTV_ISDBT_SB_SUBCHANNEL_ID:
+ c->isdbt_sb_subchannel = tvp->u.data;
+ break;
+ case DTV_ISDBT_SB_SEGMENT_IDX:
+ c->isdbt_sb_segment_idx = tvp->u.data;
+ break;
+ case DTV_ISDBT_SB_SEGMENT_COUNT:
+ c->isdbt_sb_segment_count = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYER_ENABLED:
+ c->isdbt_layer_enabled = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERA_FEC:
+ c->layer[0].fec = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERA_MODULATION:
+ c->layer[0].modulation = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERA_SEGMENT_COUNT:
+ c->layer[0].segment_count = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERA_TIME_INTERLEAVING:
+ c->layer[0].interleaving = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERB_FEC:
+ c->layer[1].fec = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERB_MODULATION:
+ c->layer[1].modulation = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERB_SEGMENT_COUNT:
+ c->layer[1].segment_count = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERB_TIME_INTERLEAVING:
+ c->layer[1].interleaving = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERC_FEC:
+ c->layer[2].fec = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERC_MODULATION:
+ c->layer[2].modulation = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERC_SEGMENT_COUNT:
+ c->layer[2].segment_count = tvp->u.data;
+ break;
+ case DTV_ISDBT_LAYERC_TIME_INTERLEAVING:
+ c->layer[2].interleaving = tvp->u.data;
+ break;
+ case DTV_ISDBS_TS_ID:
+ c->isdbs_ts_id = tvp->u.data;
+ break;
+ case DTV_DVBT2_PLP_ID:
+ c->dvbt2_plp_id = tvp->u.data;
break;
default:
- r = -1;
+ return -EINVAL;
}
return r;
}
-static int dvb_frontend_ioctl(struct inode *inode, struct file *file,
+static int dvb_frontend_ioctl(struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
struct dvb_frontend *fe = dvbdev->priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
int err = -EOPNOTSUPP;
- dprintk ("%s\n", __func__);
+ dprintk("%s (%d)\n", __func__, _IOC_NR(cmd));
- if (fepriv->exit)
+ if (fepriv->exit != DVB_FE_NO_EXIT)
return -ENODEV;
if ((file->f_flags & O_ACCMODE) == O_RDONLY &&
return -ERESTARTSYS;
if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY))
- err = dvb_frontend_ioctl_properties(inode, file, cmd, parg);
+ err = dvb_frontend_ioctl_properties(file, cmd, parg);
else {
- fe->dtv_property_cache.state = DTV_UNDEFINED;
- err = dvb_frontend_ioctl_legacy(inode, file, cmd, parg);
+ c->state = DTV_UNDEFINED;
+ err = dvb_frontend_ioctl_legacy(file, cmd, parg);
}
up(&fepriv->sem);
return err;
}
-static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file,
+static int dvb_frontend_ioctl_properties(struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
struct dvb_frontend *fe = dvbdev->priv;
+ struct dvb_frontend_private *fepriv = fe->frontend_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int err = 0;
struct dtv_properties *tvps = NULL;
if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS))
return -EINVAL;
- tvp = (struct dtv_property *) kmalloc(tvps->num *
- sizeof(struct dtv_property), GFP_KERNEL);
+ tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL);
if (!tvp) {
err = -ENOMEM;
goto out;
}
for (i = 0; i < tvps->num; i++) {
- (tvp + i)->result = dtv_property_process_set(fe, tvp + i, inode, file);
- err |= (tvp + i)->result;
+ err = dtv_property_process_set(fe, tvp + i, file);
+ if (err < 0)
+ goto out;
+ (tvp + i)->result = err;
}
- if(fe->dtv_property_cache.state == DTV_TUNE)
+ if (c->state == DTV_TUNE)
dprintk("%s() Property cache is full, tuning\n", __func__);
} else
if(cmd == FE_GET_PROPERTY) {
-
tvps = (struct dtv_properties __user *)parg;
dprintk("%s() properties.num = %d\n", __func__, tvps->num);
if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS))
return -EINVAL;
- tvp = (struct dtv_property *) kmalloc(tvps->num *
- sizeof(struct dtv_property), GFP_KERNEL);
+ tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL);
if (!tvp) {
err = -ENOMEM;
goto out;
goto out;
}
+ /*
+ * Fills the cache out struct with the cache contents, plus
+ * the data retrieved from get_frontend, if the frontend
+ * is not idle. Otherwise, returns the cached content
+ */
+ if (fepriv->state != FESTATE_IDLE) {
+ err = dtv_get_frontend(fe, NULL);
+ if (err < 0)
+ goto out;
+ }
for (i = 0; i < tvps->num; i++) {
- (tvp + i)->result = dtv_property_process_get(fe, tvp + i, inode, file);
- err |= (tvp + i)->result;
+ err = dtv_property_process_get(fe, c, tvp + i, file);
+ if (err < 0)
+ goto out;
+ (tvp + i)->result = err;
}
if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) {
return err;
}
-static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file,
+static int dtv_set_frontend(struct dvb_frontend *fe)
+{
+ struct dvb_frontend_private *fepriv = fe->frontend_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ struct dvb_frontend_tune_settings fetunesettings;
+ u32 rolloff = 0;
+
+ if (dvb_frontend_check_parameters(fe) < 0)
+ return -EINVAL;
+
+ /*
+ * Initialize output parameters to match the values given by
+ * the user. FE_SET_FRONTEND triggers an initial frontend event
+ * with status = 0, which copies output parameters to userspace.
+ */
+ dtv_property_legacy_params_sync(fe, &fepriv->parameters_out);
+
+ /*
+ * Be sure that the bandwidth will be filled for all
+ * non-satellite systems, as tuners need to know what
+ * low pass/Nyquist half filter should be applied, in
+ * order to avoid inter-channel noise.
+ *
+ * ISDB-T and DVB-T/T2 already sets bandwidth.
+ * ATSC and DVB-C don't set, so, the core should fill it.
+ *
+ * On DVB-C Annex A and C, the bandwidth is a function of
+ * the roll-off and symbol rate. Annex B defines different
+ * roll-off factors depending on the modulation. Fortunately,
+ * Annex B is only used with 6MHz, so there's no need to
+ * calculate it.
+ *
+ * While not officially supported, a side effect of handling it at
+ * the cache level is that a program could retrieve the bandwidth
+ * via DTV_BANDWIDTH_HZ, which may be useful for test programs.
+ */
+ switch (c->delivery_system) {
+ case SYS_ATSC:
+ case SYS_DVBC_ANNEX_B:
+ c->bandwidth_hz = 6000000;
+ break;
+ case SYS_DVBC_ANNEX_A:
+ rolloff = 115;
+ break;
+ case SYS_DVBC_ANNEX_C:
+ rolloff = 113;
+ break;
+ default:
+ break;
+ }
+ if (rolloff)
+ c->bandwidth_hz = (c->symbol_rate * rolloff) / 100;
+
+ /* force auto frequency inversion if requested */
+ if (dvb_force_auto_inversion)
+ c->inversion = INVERSION_AUTO;
+
+ /*
+ * without hierarchical coding code_rate_LP is irrelevant,
+ * so we tolerate the otherwise invalid FEC_NONE setting
+ */
+ if (c->hierarchy == HIERARCHY_NONE && c->code_rate_LP == FEC_NONE)
+ c->code_rate_LP = FEC_AUTO;
+
+ /* get frontend-specific tuning settings */
+ memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings));
+ if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) {
+ fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000;
+ fepriv->max_drift = fetunesettings.max_drift;
+ fepriv->step_size = fetunesettings.step_size;
+ } else {
+ /* default values */
+ switch (c->delivery_system) {
+ case SYS_DVBS:
+ case SYS_DVBS2:
+ case SYS_ISDBS:
+ case SYS_TURBO:
+ case SYS_DVBC_ANNEX_A:
+ case SYS_DVBC_ANNEX_C:
+ fepriv->min_delay = HZ / 20;
+ fepriv->step_size = c->symbol_rate / 16000;
+ fepriv->max_drift = c->symbol_rate / 2000;
+ break;
+ case SYS_DVBT:
+ case SYS_DVBT2:
+ case SYS_ISDBT:
+ case SYS_DMBTH:
+ fepriv->min_delay = HZ / 20;
+ fepriv->step_size = fe->ops.info.frequency_stepsize * 2;
+ fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1;
+ break;
+ default:
+ /*
+ * FIXME: This sounds wrong! if freqency_stepsize is
+ * defined by the frontend, why not use it???
+ */
+ fepriv->min_delay = HZ / 20;
+ fepriv->step_size = 0; /* no zigzag */
+ fepriv->max_drift = 0;
+ break;
+ }
+ }
+ if (dvb_override_tune_delay > 0)
+ 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_clear_events(fe);
+ dvb_frontend_add_event(fe, 0);
+ dvb_frontend_wakeup(fe);
+ fepriv->status = 0;
+
+ return 0;
+}
+
+
+static int dvb_frontend_ioctl_legacy(struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
struct dvb_frontend *fe = dvbdev->priv;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
- int err = -EOPNOTSUPP;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ int cb_err, err = -EOPNOTSUPP;
+
+ if (fe->dvb->fe_ioctl_override) {
+ cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg,
+ DVB_FE_IOCTL_PRE);
+ if (cb_err < 0)
+ return cb_err;
+ if (cb_err > 0)
+ return 0;
+ /* fe_ioctl_override returning 0 allows
+ * dvb-core to continue handling the ioctl */
+ }
switch (cmd) {
case FE_GET_INFO: {
struct dvb_frontend_info* info = parg;
+
memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info));
- dvb_frontend_get_frequeny_limits(fe, &info->frequency_min, &info->frequency_max);
+ dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max);
+
+ /*
+ * Associate the 4 delivery systems supported by DVBv3
+ * API with their DVBv5 counterpart. For the other standards,
+ * use the closest type, assuming that it would hopefully
+ * work with a DVBv3 application.
+ * It should be noticed that, on multi-frontend devices with
+ * different types (terrestrial and cable, for example),
+ * a pure DVBv3 application won't be able to use all delivery
+ * systems. Yet, changing the DVBv5 cache to the other delivery
+ * system should be enough for making it work.
+ */
+ switch (dvbv3_type(c->delivery_system)) {
+ case DVBV3_QPSK:
+ info->type = FE_QPSK;
+ break;
+ case DVBV3_ATSC:
+ info->type = FE_ATSC;
+ break;
+ case DVBV3_QAM:
+ info->type = FE_QAM;
+ break;
+ case DVBV3_OFDM:
+ info->type = FE_OFDM;
+ break;
+ default:
+ printk(KERN_ERR
+ "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n",
+ __func__, c->delivery_system);
+ fe->ops.info.type = FE_OFDM;
+ }
+ dprintk("current delivery system on cache: %d, V3 type: %d\n",
+ c->delivery_system, fe->ops.info.type);
/* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't
* do it, it is done for it. */
case FE_READ_STATUS: {
fe_status_t* status = parg;
- /* if retune was requested but hasn't occured yet, prevent
+ /* if retune was requested but hasn't occurred yet, prevent
* that user get signal state from previous tuning */
- if(fepriv->state == FESTATE_RETUNE) {
+ if (fepriv->state == FESTATE_RETUNE ||
+ fepriv->state == FESTATE_ERROR) {
err=0;
*status = 0;
break;
* (stv0299 for instance) take longer than 8msec to
* respond to a set_voltage command. Those switches
* need custom routines to switch properly. For all
- * other frontends, the following shoule work ok.
+ * other frontends, the following should work ok.
* Dish network legacy switches (as used by Dish500)
* are controlled by sending 9-bit command words
* spaced 8msec apart.
- * the actual command word is switch/port dependant
+ * the actual command word is switch/port dependent
* so it is up to the userspace application to send
* the right command.
* The command must always start with a '0' after
err = fe->ops.enable_high_lnb_voltage(fe, (long) parg);
break;
- case FE_SET_FRONTEND: {
- struct dvb_frontend_tune_settings fetunesettings;
-
- if(fe->dtv_property_cache.state == DTV_TUNE) {
- if (dvb_frontend_check_parameters(fe, &fepriv->parameters) < 0) {
- err = -EINVAL;
- break;
- }
- } else {
- if (dvb_frontend_check_parameters(fe, parg) < 0) {
- err = -EINVAL;
- break;
- }
-
- memcpy (&fepriv->parameters, parg,
- sizeof (struct dvb_frontend_parameters));
- dtv_property_cache_sync(fe, &fepriv->parameters);
- }
-
- memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings));
- memcpy(&fetunesettings.parameters, parg,
- sizeof (struct dvb_frontend_parameters));
-
- /* force auto frequency inversion if requested */
- if (dvb_force_auto_inversion) {
- fepriv->parameters.inversion = INVERSION_AUTO;
- fetunesettings.parameters.inversion = INVERSION_AUTO;
- }
- if (fe->ops.info.type == FE_OFDM) {
- /* without hierarchical coding code_rate_LP is irrelevant,
- * so we tolerate the otherwise invalid FEC_NONE setting */
- if (fepriv->parameters.u.ofdm.hierarchy_information == HIERARCHY_NONE &&
- fepriv->parameters.u.ofdm.code_rate_LP == FEC_NONE)
- fepriv->parameters.u.ofdm.code_rate_LP = FEC_AUTO;
- }
-
- /* get frontend-specific tuning settings */
- if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) {
- fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000;
- fepriv->max_drift = fetunesettings.max_drift;
- fepriv->step_size = fetunesettings.step_size;
- } else {
- /* default values */
- switch(fe->ops.info.type) {
- case FE_QPSK:
- fepriv->min_delay = HZ/20;
- fepriv->step_size = fepriv->parameters.u.qpsk.symbol_rate / 16000;
- fepriv->max_drift = fepriv->parameters.u.qpsk.symbol_rate / 2000;
- break;
-
- case FE_QAM:
- fepriv->min_delay = HZ/20;
- fepriv->step_size = 0; /* no zigzag */
- fepriv->max_drift = 0;
- break;
-
- case FE_OFDM:
- fepriv->min_delay = HZ/20;
- fepriv->step_size = fe->ops.info.frequency_stepsize * 2;
- fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1;
- break;
- case FE_ATSC:
- fepriv->min_delay = HZ/20;
- fepriv->step_size = 0;
- fepriv->max_drift = 0;
- break;
- }
- }
- if (dvb_override_tune_delay > 0)
- fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000;
+ case FE_SET_FRONTEND:
+ err = set_delivery_system(fe, SYS_UNDEFINED);
+ if (err)
+ break;
- fepriv->state = FESTATE_RETUNE;
- dvb_frontend_wakeup(fe);
- dvb_frontend_add_event(fe, 0);
- fepriv->status = 0;
- err = 0;
+ err = dtv_property_cache_sync(fe, c, parg);
+ if (err)
+ break;
+ err = dtv_set_frontend(fe);
break;
- }
-
case FE_GET_EVENT:
err = dvb_frontend_get_event (fe, parg, file->f_flags);
break;
case FE_GET_FRONTEND:
- if (fe->ops.get_frontend) {
- memcpy (parg, &fepriv->parameters, sizeof (struct dvb_frontend_parameters));
- err = fe->ops.get_frontend(fe, (struct dvb_frontend_parameters*) parg);
- }
+ err = dtv_get_frontend(fe, parg);
break;
case FE_SET_FRONTEND_TUNE_MODE:
break;
};
+ if (fe->dvb->fe_ioctl_override) {
+ cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg,
+ DVB_FE_IOCTL_POST);
+ if (cb_err < 0)
+ return cb_err;
+ }
+
return err;
}
int ret;
dprintk ("%s\n", __func__);
+ if (fepriv->exit == DVB_FE_DEVICE_REMOVED)
+ return -ENODEV;
if (adapter->mfe_shared) {
mutex_lock (&adapter->mfe_lock);
if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) {
if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0)
goto err0;
+
+ /* If we took control of the bus, we need to force
+ reinitialization. This is because many ts_bus_ctrl()
+ functions strobe the RESET pin on the demod, and if the
+ frontend thread already exists then the dvb_init() routine
+ won't get called (which is what usually does initial
+ register configuration). */
+ fepriv->reinitialise = 1;
}
if ((ret = dvb_generic_open (inode, file)) < 0)
dprintk ("%s\n", __func__);
- if ((file->f_flags & O_ACCMODE) != O_RDONLY)
+ if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
fepriv->release_jiffies = jiffies;
+ mb();
+ }
ret = dvb_generic_release (inode, file);
if (dvbdev->users == -1) {
- if (fepriv->exit == 1) {
+ wake_up(&fepriv->wait_queue);
+ if (fepriv->exit != DVB_FE_NO_EXIT) {
fops_put(file->f_op);
file->f_op = NULL;
wake_up(&dvbdev->wait_queue);
return ret;
}
-static struct file_operations dvb_frontend_fops = {
+static const struct file_operations dvb_frontend_fops = {
.owner = THIS_MODULE,
- .ioctl = dvb_generic_ioctl,
+ .unlocked_ioctl = dvb_generic_ioctl,
.poll = dvb_frontend_poll,
.open = dvb_frontend_open,
- .release = dvb_frontend_release
+ .release = dvb_frontend_release,
+ .llseek = noop_llseek,
};
int dvb_register_frontend(struct dvb_adapter* dvb,
}
fepriv = fe->frontend_priv;
- init_MUTEX (&fepriv->sem);
+ sema_init(&fepriv->sem, 1);
init_waitqueue_head (&fepriv->wait_queue);
init_waitqueue_head (&fepriv->events.wait_queue);
mutex_init(&fepriv->events.mtx);
dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template,
fe, DVB_DEVICE_FRONTEND);
+ /*
+ * Initialize the cache to the proper values according with the
+ * first supported delivery system (ops->delsys[0])
+ */
+
+ fe->dtv_property_cache.delivery_system = fe->ops.delsys[0];
+ dvb_frontend_clear_cache(fe);
+
mutex_unlock(&frontend_mutex);
return 0;
}
projects / linux-flexiantxendom0-3.2.10.git / blobdiff