#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/module.h>
-#include <linux/moduleparam.h>
#include <linux/list.h>
#include <linux/freezer.h>
#include <linux/jiffies.h>
+#include <linux/kthread.h>
#include <asm/processor.h>
#include "dvb_frontend.h"
#include "dvbdev.h"
static int dvb_frontend_debug;
-static int dvb_shutdown_timeout = 5;
+static int dvb_shutdown_timeout;
static int dvb_force_auto_inversion;
static int dvb_override_tune_delay;
static int dvb_powerdown_on_sleep = 1;
struct semaphore sem;
struct list_head list_head;
wait_queue_head_t wait_queue;
- pid_t thread_pid;
+ struct task_struct *thread;
unsigned long release_jiffies;
unsigned int exit;
unsigned int wakeup;
struct dvb_frontend_event *e;
int wp;
- dprintk ("%s\n", __FUNCTION__);
+ dprintk ("%s\n", __func__);
- if (down_interruptible (&events->sem))
+ if (mutex_lock_interruptible (&events->mtx))
return;
wp = (events->eventw + 1) % MAX_EVENT;
events->eventw = wp;
- up (&events->sem);
+ mutex_unlock(&events->mtx);
e->status = status;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
struct dvb_fe_events *events = &fepriv->events;
- dprintk ("%s\n", __FUNCTION__);
+ dprintk ("%s\n", __func__);
if (events->overflow) {
events->overflow = 0;
return ret;
}
- if (down_interruptible (&events->sem))
+ if (mutex_lock_interruptible (&events->mtx))
return -ERESTARTSYS;
memcpy (event, &events->events[events->eventr],
events->eventr = (events->eventr + 1) % MAX_EVENT;
- up (&events->sem);
+ mutex_unlock(&events->mtx);
return 0;
}
{
int q2;
- dprintk ("%s\n", __FUNCTION__);
+ dprintk ("%s\n", __func__);
if (locked)
(fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256;
dprintk("%s: drift:%i inversion:%i auto_step:%i "
"auto_sub_step:%i started_auto_step:%i\n",
- __FUNCTION__, fepriv->lnb_drift, fepriv->inversion,
+ __func__, fepriv->lnb_drift, fepriv->inversion,
fepriv->auto_step, fepriv->auto_sub_step, fepriv->started_auto_step);
/* set the frontend itself */
struct dvb_frontend *fe = data;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
unsigned long timeout;
- char name [15];
fe_status_t s;
struct dvb_frontend_parameters *params;
- dprintk("%s\n", __FUNCTION__);
-
- snprintf (name, sizeof(name), "kdvb-fe-%i", fe->dvb->num);
-
- lock_kernel();
- daemonize(name);
- sigfillset(¤t->blocked);
- unlock_kernel();
+ dprintk("%s\n", __func__);
fepriv->check_wrapped = 0;
fepriv->quality = 0;
dvb_frontend_init(fe);
+ set_freezable();
while (1) {
up(&fepriv->sem); /* is locked when we enter the thread... */
-
+restart:
timeout = wait_event_interruptible_timeout(fepriv->wait_queue,
- dvb_frontend_should_wakeup(fe),
- fepriv->delay);
- if (0 != dvb_frontend_is_exiting(fe)) {
+ 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 */
break;
}
- try_to_freeze();
+ if (try_to_freeze())
+ goto restart;
if (down_interruptible(&fepriv->sem))
break;
dvb_frontend_swzigzag(fe);
}
- if (dvb_shutdown_timeout) {
- if (dvb_powerdown_on_sleep)
- if (fe->ops.set_voltage)
- fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF);
+ if (dvb_powerdown_on_sleep) {
+ if (fe->ops.set_voltage)
+ fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF);
if (fe->ops.tuner_ops.sleep) {
fe->ops.tuner_ops.sleep(fe);
if (fe->ops.i2c_gate_ctrl)
fe->ops.sleep(fe);
}
- fepriv->thread_pid = 0;
+ fepriv->thread = NULL;
mb();
dvb_frontend_wakeup(fe);
static void dvb_frontend_stop(struct dvb_frontend *fe)
{
- unsigned long ret;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
- dprintk ("%s\n", __FUNCTION__);
+ dprintk ("%s\n", __func__);
fepriv->exit = 1;
mb();
- if (!fepriv->thread_pid)
+ if (!fepriv->thread)
return;
- /* check if the thread is really alive */
- if (kill_proc(fepriv->thread_pid, 0, 1) == -ESRCH) {
- printk("dvb_frontend_stop: thread PID %d already died\n",
- fepriv->thread_pid);
- /* make sure the mutex was not held by the thread */
- init_MUTEX (&fepriv->sem);
- return;
- }
-
- /* wake up the frontend thread, so it notices that fe->exit == 1 */
- dvb_frontend_wakeup(fe);
+ kthread_stop(fepriv->thread);
- /* wait until the frontend thread has exited */
- ret = wait_event_interruptible(fepriv->wait_queue,0 == fepriv->thread_pid);
- if (-ERESTARTSYS != ret) {
- fepriv->state = FESTATE_IDLE;
- return;
- }
+ init_MUTEX (&fepriv->sem);
fepriv->state = FESTATE_IDLE;
/* paranoia check in case a signal arrived */
- if (fepriv->thread_pid)
- printk("dvb_frontend_stop: warning: thread PID %d won't exit\n",
- fepriv->thread_pid);
+ if (fepriv->thread)
+ printk("dvb_frontend_stop: warning: thread %p won't exit\n",
+ fepriv->thread);
}
s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime)
{
int ret;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
+ struct task_struct *fe_thread;
- dprintk ("%s\n", __FUNCTION__);
+ dprintk ("%s\n", __func__);
- if (fepriv->thread_pid) {
+ if (fepriv->thread) {
if (!fepriv->exit)
return 0;
else
fepriv->state = FESTATE_IDLE;
fepriv->exit = 0;
- fepriv->thread_pid = 0;
+ fepriv->thread = NULL;
mb();
- ret = kernel_thread (dvb_frontend_thread, fe, 0);
-
- if (ret < 0) {
- printk("dvb_frontend_start: failed to start kernel_thread (%d)\n", ret);
+ fe_thread = kthread_run(dvb_frontend_thread, fe,
+ "kdvb-fe-%i", fe->dvb->num);
+ if (IS_ERR(fe_thread)) {
+ ret = PTR_ERR(fe_thread);
+ printk("dvb_frontend_start: failed to start kthread (%d)\n", ret);
up(&fepriv->sem);
return ret;
}
- fepriv->thread_pid = ret;
+ fepriv->thread = fe_thread;
+ return 0;
+}
+
+static void dvb_frontend_get_frequeny_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);
+
+ if (fe->ops.info.frequency_max == 0)
+ *freq_max = fe->ops.tuner_ops.info.frequency_max;
+ else if (fe->ops.tuner_ops.info.frequency_max == 0)
+ *freq_max = fe->ops.info.frequency_max;
+ else
+ *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);
+}
+
+static int dvb_frontend_check_parameters(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *parms)
+{
+ 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)) {
+ printk(KERN_WARNING "DVB: frontend %u frequency %u out of range (%u..%u)\n",
+ fe->dvb->num, parms->frequency, freq_min, freq_max);
+ return -EINVAL;
+ }
+
+ /* range check: symbol rate */
+ if (fe->ops.info.type == FE_QPSK) {
+ if ((fe->ops.info.symbol_rate_min &&
+ 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,
+ fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max);
+ return -EINVAL;
+ }
+
+ } 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: frontend %u symbol rate %u out of range (%u..%u)\n",
+ fe->dvb->num, 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[] = {
+ [DTV_TUNE] = {
+ .name = "DTV_TUNE",
+ .cmd = DTV_TUNE,
+ .set = 1,
+ },
+ [DTV_CLEAR] = {
+ .name = "DTV_CLEAR",
+ .cmd = DTV_CLEAR,
+ .set = 1,
+ },
+
+ /* Set */
+ [DTV_FREQUENCY] = {
+ .name = "DTV_FREQUENCY",
+ .cmd = DTV_FREQUENCY,
+ .set = 1,
+ },
+ [DTV_BANDWIDTH] = {
+ .name = "DTV_BANDWIDTH",
+ .cmd = DTV_BANDWIDTH,
+ .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_ISDB_SEGMENT_IDX] = {
+ .name = "DTV_ISDB_SEGMENT_IDX",
+ .cmd = DTV_ISDB_SEGMENT_IDX,
+ .set = 1,
+ },
+ [DTV_ISDB_SEGMENT_WIDTH] = {
+ .name = "DTV_ISDB_SEGMENT_WIDTH",
+ .cmd = DTV_ISDB_SEGMENT_WIDTH,
+ .set = 1,
+ },
+
+ /* Get */
+ [DTV_DISEQC_SLAVE_REPLY] = {
+ .name = "DTV_DISEQC_SLAVE_REPLY",
+ .cmd = DTV_DISEQC_SLAVE_REPLY,
+ .set = 0,
+ .buffer = 1,
+ },
+ [DTV_ISDB_LAYERA_FEC] = {
+ .name = "DTV_ISDB_LAYERA_FEC",
+ .cmd = DTV_ISDB_LAYERA_FEC,
+ .set = 0,
+ },
+ [DTV_ISDB_LAYERA_MODULATION] = {
+ .name = "DTV_ISDB_LAYERA_MODULATION",
+ .cmd = DTV_ISDB_LAYERA_MODULATION,
+ .set = 0,
+ },
+ [DTV_ISDB_LAYERA_SEGMENT_WIDTH] = {
+ .name = "DTV_ISDB_LAYERA_SEGMENT_WIDTH",
+ .cmd = DTV_ISDB_LAYERA_SEGMENT_WIDTH,
+ .set = 0,
+ },
+ [DTV_ISDB_LAYERB_FEC] = {
+ .name = "DTV_ISDB_LAYERB_FEC",
+ .cmd = DTV_ISDB_LAYERB_FEC,
+ .set = 0,
+ },
+ [DTV_ISDB_LAYERB_MODULATION] = {
+ .name = "DTV_ISDB_LAYERB_MODULATION",
+ .cmd = DTV_ISDB_LAYERB_MODULATION,
+ .set = 0,
+ },
+ [DTV_ISDB_LAYERB_SEGMENT_WIDTH] = {
+ .name = "DTV_ISDB_LAYERB_SEGMENT_WIDTH",
+ .cmd = DTV_ISDB_LAYERB_SEGMENT_WIDTH,
+ .set = 0,
+ },
+ [DTV_ISDB_LAYERC_FEC] = {
+ .name = "DTV_ISDB_LAYERC_FEC",
+ .cmd = DTV_ISDB_LAYERC_FEC,
+ .set = 0,
+ },
+ [DTV_ISDB_LAYERC_MODULATION] = {
+ .name = "DTV_ISDB_LAYERC_MODULATION",
+ .cmd = DTV_ISDB_LAYERC_MODULATION,
+ .set = 0,
+ },
+ [DTV_ISDB_LAYERC_SEGMENT_WIDTH] = {
+ .name = "DTV_ISDB_LAYERC_SEGMENT_WIDTH",
+ .cmd = DTV_ISDB_LAYERC_SEGMENT_WIDTH,
+ .set = 0,
+ },
+};
+
+void dtv_property_dump(struct dtv_property *tvp)
+{
+ int i;
+
+ printk("%s() tvp.cmd = 0x%08x (%s)\n"
+ ,__FUNCTION__
+ ,tvp->cmd
+ ,dtv_cmds[ tvp->cmd ].name);
+
+ if(dtv_cmds[ tvp->cmd ].buffer) {
+
+ printk("%s() tvp.u.buffer.len = 0x%02x\n"
+ ,__FUNCTION__
+ ,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__
+ ,i
+ ,tvp->u.buffer.data[i]);
+
+ } else
+ printk("%s() tvp.u.data = 0x%08x\n", __FUNCTION__, 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))
+ 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)
+{
+ 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->symbol_rate = p->u.qpsk.symbol_rate;
+ c->fec_inner = p->u.qpsk.fec_inner;
+ c->delivery_system = SYS_DVBS;
+ break;
+ case FE_QAM:
+ 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:
+ c->bandwidth = p->u.ofdm.bandwidth;
+ 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:
+ 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;
+ }
+}
+
+/* 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)
+{
+ 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__);
+ 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__);
+ 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__);
+ p->u.ofdm.bandwidth = c->bandwidth;
+ 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:
+ printk("%s() Preparing VSB req\n", __FUNCTION__);
+ 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;
+ }
+}
+
+/* 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)
+{
+ 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:
+ p->u.qpsk.symbol_rate = c->symbol_rate;
+ p->u.qpsk.fec_inner = c->fec_inner;
+ break;
+ default:
+ break;
+ }
+
+ 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;
+
+ 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);
+ dtv_property_legacy_params_sync(fe);
+
+ } else {
+ printk("%s() adv, modulation = %d\n", __FUNCTION__, 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);
+ }
+}
+
+static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file,
+ unsigned int cmd, void *parg);
+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)
+{
+ int r = 0;
+
+ printk("%s()\n", __FUNCTION__);
+
+ 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;
+
+ switch(tvp->cmd) {
+ case DTV_FREQUENCY:
+ tvp->u.data = fe->dtv_property_cache.frequency;
+ break;
+ case DTV_MODULATION:
+ tvp->u.data = fe->dtv_property_cache.modulation;
+ break;
+ case DTV_BANDWIDTH:
+ tvp->u.data = fe->dtv_property_cache.bandwidth;
+ break;
+ case DTV_INVERSION:
+ tvp->u.data = fe->dtv_property_cache.inversion;
+ break;
+ case DTV_SYMBOL_RATE:
+ tvp->u.data = fe->dtv_property_cache.symbol_rate;
+ break;
+ case DTV_INNER_FEC:
+ tvp->u.data = fe->dtv_property_cache.fec_inner;
+ break;
+ case DTV_PILOT:
+ tvp->u.data = fe->dtv_property_cache.pilot;
+ break;
+ case DTV_ROLLOFF:
+ tvp->u.data = fe->dtv_property_cache.rolloff;
+ break;
+ case DTV_DELIVERY_SYSTEM:
+ tvp->u.data = fe->dtv_property_cache.delivery_system;
+ break;
+
+ /* ISDB-T Support here */
+ case DTV_ISDB_SEGMENT_IDX:
+ tvp->u.data = fe->dtv_property_cache.isdb_segment_idx;
+ break;
+ case DTV_ISDB_SEGMENT_WIDTH:
+ tvp->u.data = fe->dtv_property_cache.isdb_segment_width;
+ break;
+ case DTV_ISDB_LAYERA_FEC:
+ tvp->u.data = fe->dtv_property_cache.isdb_layera_fec;
+ break;
+ case DTV_ISDB_LAYERA_MODULATION:
+ tvp->u.data = fe->dtv_property_cache.isdb_layera_modulation;
+ break;
+ case DTV_ISDB_LAYERA_SEGMENT_WIDTH:
+ tvp->u.data = fe->dtv_property_cache.isdb_layera_segment_width;
+ break;
+ case DTV_ISDB_LAYERB_FEC:
+ tvp->u.data = fe->dtv_property_cache.isdb_layerb_fec;
+ break;
+ case DTV_ISDB_LAYERB_MODULATION:
+ tvp->u.data = fe->dtv_property_cache.isdb_layerb_modulation;
+ break;
+ case DTV_ISDB_LAYERB_SEGMENT_WIDTH:
+ tvp->u.data = fe->dtv_property_cache.isdb_layerb_segment_width;
+ break;
+ case DTV_ISDB_LAYERC_FEC:
+ tvp->u.data = fe->dtv_property_cache.isdb_layerc_fec;
+ break;
+ case DTV_ISDB_LAYERC_MODULATION:
+ tvp->u.data = fe->dtv_property_cache.isdb_layerc_modulation;
+ break;
+ case DTV_ISDB_LAYERC_SEGMENT_WIDTH:
+ tvp->u.data = fe->dtv_property_cache.isdb_layerc_segment_width;
+ break;
+ case DTV_VOLTAGE:
+ tvp->u.data = fe->dtv_property_cache.voltage;
+ break;
+ case DTV_TONE:
+ tvp->u.data = fe->dtv_property_cache.sectone;
+ 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)
+{
+ 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 */
+ if (fe->ops.set_property)
+ r = fe->ops.set_property(fe, tvp);
+
+ if (r < 0)
+ return r;
+
+ switch(tvp->cmd) {
+ case DTV_CLEAR:
+ /* Reset a cache of data specific to the frontend here. This does
+ * not effect hardware.
+ */
+ printk("%s() Flushing property cache\n", __FUNCTION__);
+ 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;
+ 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;
+ printk("%s() Finalised property cache\n", __FUNCTION__);
+ dtv_property_cache_submit(fe);
+
+ r |= dvb_frontend_ioctl_legacy(inode, file, FE_SET_FRONTEND,
+ &fepriv->parameters);
+ break;
+ case DTV_FREQUENCY:
+ fe->dtv_property_cache.frequency = tvp->u.data;
+ break;
+ case DTV_MODULATION:
+ fe->dtv_property_cache.modulation = tvp->u.data;
+ break;
+ case DTV_BANDWIDTH:
+ fe->dtv_property_cache.bandwidth = tvp->u.data;
+ break;
+ case DTV_INVERSION:
+ fe->dtv_property_cache.inversion = tvp->u.data;
+ break;
+ case DTV_SYMBOL_RATE:
+ fe->dtv_property_cache.symbol_rate = tvp->u.data;
+ break;
+ case DTV_INNER_FEC:
+ fe->dtv_property_cache.fec_inner = tvp->u.data;
+ break;
+ case DTV_PILOT:
+ fe->dtv_property_cache.pilot = tvp->u.data;
+ break;
+ case DTV_ROLLOFF:
+ fe->dtv_property_cache.rolloff = tvp->u.data;
+ break;
+ case DTV_DELIVERY_SYSTEM:
+ fe->dtv_property_cache.delivery_system = tvp->u.data;
+ break;
+
+ /* ISDB-T Support here */
+ case DTV_ISDB_SEGMENT_IDX:
+ fe->dtv_property_cache.isdb_segment_idx = tvp->u.data;
+ break;
+ case DTV_ISDB_SEGMENT_WIDTH:
+ fe->dtv_property_cache.isdb_segment_width = 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);
+ 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);
+ break;
+ default:
+ r = -1;
+ }
+
+ return r;
+}
+
static int dvb_frontend_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_frontend_private *fepriv = fe->frontend_priv;
int err = -EOPNOTSUPP;
- dprintk ("%s\n", __FUNCTION__);
+ dprintk ("%s\n", __func__);
- if (!fe || fepriv->exit)
+ if (fepriv->exit)
return -ENODEV;
if ((file->f_flags & O_ACCMODE) == O_RDONLY &&
if (down_interruptible (&fepriv->sem))
return -ERESTARTSYS;
+ if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY))
+ err = dvb_frontend_ioctl_properties(inode, file, cmd, parg);
+ else
+ err = dvb_frontend_ioctl_legacy(inode, file, cmd, parg);
+
+ up(&fepriv->sem);
+ return err;
+}
+
+static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file,
+ unsigned int cmd, void *parg)
+{
+ struct dvb_device *dvbdev = file->private_data;
+ struct dvb_frontend *fe = dvbdev->priv;
+ int err = 0;
+
+ struct dtv_properties *tvps = NULL;
+ struct dtv_property *tvp = NULL;
+ int i;
+
+ 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);
+
+ /* Put an arbitrary limit on the number of messages that can
+ * be sent at once */
+ if (tvps->num > DTV_IOCTL_MAX_MSGS)
+ return -EINVAL;
+
+ tvp = (struct dtv_property *) kmalloc(tvps->num *
+ sizeof(struct dtv_property), GFP_KERNEL);
+ if (!tvp) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) {
+ err = -EFAULT;
+ goto out;
+ }
+
+ for (i = 0; i < tvps->num; i++)
+ err |= dtv_property_process_set(fe, tvp + i, inode, file);
+
+ if(fe->dtv_property_cache.state == DTV_TUNE) {
+ printk("%s() Property cache is full, tuning\n", __FUNCTION__);
+ }
+
+ } 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);
+
+ /* Put an arbitrary limit on the number of messages that can
+ * be sent at once */
+ if (tvps->num > DTV_IOCTL_MAX_MSGS)
+ return -EINVAL;
+
+ tvp = (struct dtv_property *) kmalloc(tvps->num *
+ sizeof(struct dtv_property), GFP_KERNEL);
+ if (!tvp) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) {
+ err = -EFAULT;
+ goto out;
+ }
+
+ for (i = 0; i < tvps->num; i++)
+ err |= dtv_property_process_get(fe, tvp + i, inode, file);
+
+ if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) {
+ err = -EFAULT;
+ goto out;
+ }
+
+ } else
+ err = -EOPNOTSUPP;
+
+out:
+ kfree(tvp);
+ return err;
+}
+
+static int dvb_frontend_ioctl_legacy(struct inode *inode, 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;
+
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);
/* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't
* do it, it is done for it. */
* initialization, so parg is 8 bits and does not
* include the initialization or start bit
*/
- unsigned long cmd = ((unsigned long) parg) << 1;
+ unsigned long swcmd = ((unsigned long) parg) << 1;
struct timeval nexttime;
struct timeval tv[10];
int i;
u8 last = 1;
if (dvb_frontend_debug)
- printk("%s switch command: 0x%04lx\n", __FUNCTION__, cmd);
+ printk("%s switch command: 0x%04lx\n", __func__, swcmd);
do_gettimeofday(&nexttime);
if (dvb_frontend_debug)
memcpy(&tv[0], &nexttime, sizeof(struct timeval));
for (i = 0; i < 9; i++) {
if (dvb_frontend_debug)
do_gettimeofday(&tv[i + 1]);
- if ((cmd & 0x01) != last) {
+ if ((swcmd & 0x01) != last) {
/* set voltage to (last ? 13V : 18V) */
fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18);
last = (last) ? 0 : 1;
}
- cmd = cmd >> 1;
+ swcmd = swcmd >> 1;
if (i != 8)
dvb_frontend_sleep_until(&nexttime, 8000);
}
if (dvb_frontend_debug) {
printk("%s(%d): switch delay (should be 32k followed by all 8k\n",
- __FUNCTION__, fe->dvb->num);
+ __func__, fe->dvb->num);
for (i = 1; i < 10; i++)
printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i]));
}
case FE_SET_FRONTEND: {
struct dvb_frontend_tune_settings fetunesettings;
- memcpy (&fepriv->parameters, parg,
- sizeof (struct dvb_frontend_parameters));
+ dtv_property_cache_sync(fe, &fepriv->parameters);
+
+ 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));
+ }
memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings));
memcpy(&fetunesettings.parameters, parg,
break;
};
- up (&fepriv->sem);
return err;
}
+
static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait)
{
struct dvb_device *dvbdev = file->private_data;
struct dvb_frontend *fe = dvbdev->priv;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
- dprintk ("%s\n", __FUNCTION__);
+ dprintk ("%s\n", __func__);
poll_wait (file, &fepriv->events.wait_queue, wait);
struct dvb_frontend_private *fepriv = fe->frontend_priv;
int ret;
- dprintk ("%s\n", __FUNCTION__);
+ dprintk ("%s\n", __func__);
- if ((ret = dvb_generic_open (inode, file)) < 0)
- return ret;
-
- if (fe->ops.ts_bus_ctrl) {
- if ((ret = fe->ops.ts_bus_ctrl (fe, 1)) < 0) {
- dvb_generic_release (inode, file);
+ if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) {
+ if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0)
return ret;
- }
}
- if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
+ if ((ret = dvb_generic_open (inode, file)) < 0)
+ goto err1;
+ if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
/* normal tune mode when opened R/W */
fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT;
fepriv->tone = -1;
ret = dvb_frontend_start (fe);
if (ret)
- dvb_generic_release (inode, file);
+ goto err2;
/* empty event queue */
fepriv->events.eventr = fepriv->events.eventw = 0;
}
return ret;
+
+err2:
+ dvb_generic_release(inode, file);
+err1:
+ if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl)
+ fe->ops.ts_bus_ctrl(fe, 0);
+ return ret;
}
static int dvb_frontend_release(struct inode *inode, struct file *file)
struct dvb_device *dvbdev = file->private_data;
struct dvb_frontend *fe = dvbdev->priv;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
+ int ret;
- dprintk ("%s\n", __FUNCTION__);
+ dprintk ("%s\n", __func__);
if ((file->f_flags & O_ACCMODE) != O_RDONLY)
fepriv->release_jiffies = jiffies;
- if (fe->ops.ts_bus_ctrl)
- fe->ops.ts_bus_ctrl (fe, 0);
+ ret = dvb_generic_release (inode, file);
- return dvb_generic_release (inode, file);
+ if (dvbdev->users == -1) {
+ if (fepriv->exit == 1) {
+ fops_put(file->f_op);
+ file->f_op = NULL;
+ wake_up(&dvbdev->wait_queue);
+ }
+ if (fe->ops.ts_bus_ctrl)
+ fe->ops.ts_bus_ctrl(fe, 0);
+ }
+
+ return ret;
}
static struct file_operations dvb_frontend_fops = {
.kernel_ioctl = dvb_frontend_ioctl
};
- dprintk ("%s\n", __FUNCTION__);
+ dprintk ("%s\n", __func__);
if (mutex_lock_interruptible(&frontend_mutex))
return -ERESTARTSYS;
init_MUTEX (&fepriv->sem);
init_waitqueue_head (&fepriv->wait_queue);
init_waitqueue_head (&fepriv->events.wait_queue);
- init_MUTEX (&fepriv->events.sem);
+ mutex_init(&fepriv->events.mtx);
fe->dvb = dvb;
fepriv->inversion = INVERSION_OFF;
int dvb_unregister_frontend(struct dvb_frontend* fe)
{
struct dvb_frontend_private *fepriv = fe->frontend_priv;
- dprintk ("%s\n", __FUNCTION__);
+ dprintk ("%s\n", __func__);
mutex_lock(&frontend_mutex);
- dvb_unregister_device (fepriv->dvbdev);
dvb_frontend_stop (fe);
+ mutex_unlock(&frontend_mutex);
+
+ if (fepriv->dvbdev->users < -1)
+ wait_event(fepriv->dvbdev->wait_queue,
+ fepriv->dvbdev->users==-1);
+
+ mutex_lock(&frontend_mutex);
+ dvb_unregister_device (fepriv->dvbdev);
/* fe is invalid now */
kfree(fepriv);
}
EXPORT_SYMBOL(dvb_unregister_frontend);
-#ifdef CONFIG_DVB_CORE_ATTACH
+#ifdef CONFIG_MEDIA_ATTACH
void dvb_frontend_detach(struct dvb_frontend* fe)
{
void *ptr;
fe->ops.tuner_ops.release(fe);
symbol_put_addr(fe->ops.tuner_ops.release);
}
+ if (fe->ops.analog_ops.release) {
+ fe->ops.analog_ops.release(fe);
+ symbol_put_addr(fe->ops.analog_ops.release);
+ }
ptr = (void*)fe->ops.release;
if (ptr) {
fe->ops.release(fe);
fe->ops.release_sec(fe);
if (fe->ops.tuner_ops.release)
fe->ops.tuner_ops.release(fe);
+ if (fe->ops.analog_ops.release)
+ fe->ops.analog_ops.release(fe);
if (fe->ops.release)
fe->ops.release(fe);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff