diff options
Diffstat (limited to 'linux/drivers/media/dvb/dvb-core')
| -rw-r--r-- | linux/drivers/media/dvb/dvb-core/dmxdev.c | 16 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c | 24 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.h | 6 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/dvb-core/dvb_demux.c | 16 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/dvb-core/dvb_frontend.c | 682 | ||||
| -rw-r--r-- | linux/drivers/media/dvb/dvb-core/dvb_frontend.h | 46 |
6 files changed, 765 insertions, 25 deletions
diff --git a/linux/drivers/media/dvb/dvb-core/dmxdev.c b/linux/drivers/media/dvb/dvb-core/dmxdev.c index 069d847ba..0c733c66a 100644 --- a/linux/drivers/media/dvb/dvb-core/dmxdev.c +++ b/linux/drivers/media/dvb/dvb-core/dmxdev.c @@ -364,15 +364,16 @@ static int dvb_dmxdev_section_callback(const u8 *buffer1, size_t buffer1_len, enum dmx_success success) { struct dmxdev_filter *dmxdevfilter = filter->priv; + unsigned long flags; int ret; if (dmxdevfilter->buffer.error) { wake_up(&dmxdevfilter->buffer.queue); return 0; } - spin_lock(&dmxdevfilter->dev->lock); + spin_lock_irqsave(&dmxdevfilter->dev->lock, flags); if (dmxdevfilter->state != DMXDEV_STATE_GO) { - spin_unlock(&dmxdevfilter->dev->lock); + spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags); return 0; } del_timer(&dmxdevfilter->timer); @@ -391,7 +392,7 @@ static int dvb_dmxdev_section_callback(const u8 *buffer1, size_t buffer1_len, } if (dmxdevfilter->params.sec.flags & DMX_ONESHOT) dmxdevfilter->state = DMXDEV_STATE_DONE; - spin_unlock(&dmxdevfilter->dev->lock); + spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags); wake_up(&dmxdevfilter->buffer.queue); return 0; } @@ -403,11 +404,12 @@ static int dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len, { struct dmxdev_filter *dmxdevfilter = feed->priv; struct dvb_ringbuffer *buffer; + unsigned long flags; int ret; - spin_lock(&dmxdevfilter->dev->lock); + spin_lock_irqsave(&dmxdevfilter->dev->lock, flags); if (dmxdevfilter->params.pes.output == DMX_OUT_DECODER) { - spin_unlock(&dmxdevfilter->dev->lock); + spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags); return 0; } @@ -417,7 +419,7 @@ static int dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len, else buffer = &dmxdevfilter->dev->dvr_buffer; if (buffer->error) { - spin_unlock(&dmxdevfilter->dev->lock); + spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags); wake_up(&buffer->queue); return 0; } @@ -428,7 +430,7 @@ static int dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len, dvb_ringbuffer_flush(buffer); buffer->error = ret; } - spin_unlock(&dmxdevfilter->dev->lock); + spin_unlock_irqrestore(&dmxdevfilter->dev->lock, flags); wake_up(&buffer->queue); return 0; } diff --git a/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c b/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c index f6016feab..19965a055 100644 --- a/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c +++ b/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.c @@ -94,6 +94,9 @@ struct dvb_ca_slot { /* current state of the CAM */ int slot_state; + /* mutex used for serializing access to one CI slot */ + struct mutex slot_lock; + /* Number of CAMCHANGES that have occurred since last processing */ atomic_t camchange_count; @@ -712,14 +715,20 @@ static int dvb_ca_en50221_write_data(struct dvb_ca_private *ca, int slot, u8 * b dprintk("%s\n", __func__); - // sanity check + /* sanity check */ if (bytes_write > ca->slot_info[slot].link_buf_size) return -EINVAL; - /* check if interface is actually waiting for us to read from it, or if a read is in progress */ + /* it is possible we are dealing with a single buffer implementation, + thus if there is data available for read or if there is even a read + already in progress, we do nothing but awake the kernel thread to + process the data if necessary. */ if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_STATUS)) < 0) goto exitnowrite; if (status & (STATUSREG_DA | STATUSREG_RE)) { + if (status & STATUSREG_DA) + dvb_ca_en50221_thread_wakeup(ca); + status = -EAGAIN; goto exitnowrite; } @@ -988,6 +997,8 @@ static int dvb_ca_en50221_thread(void *data) /* go through all the slots processing them */ for (slot = 0; slot < ca->slot_count; slot++) { + mutex_lock(&ca->slot_info[slot].slot_lock); + // check the cam status + deal with CAMCHANGEs while (dvb_ca_en50221_check_camstatus(ca, slot)) { /* clear down an old CI slot if necessary */ @@ -1123,7 +1134,7 @@ static int dvb_ca_en50221_thread(void *data) case DVB_CA_SLOTSTATE_RUNNING: if (!ca->open) - continue; + break; // poll slots for data pktcount = 0; @@ -1147,6 +1158,8 @@ static int dvb_ca_en50221_thread(void *data) } break; } + + mutex_unlock(&ca->slot_info[slot].slot_lock); } } @@ -1182,6 +1195,7 @@ static int dvb_ca_en50221_io_do_ioctl(struct inode *inode, struct file *file, switch (cmd) { case CA_RESET: for (slot = 0; slot < ca->slot_count; slot++) { + mutex_lock(&ca->slot_info[slot].slot_lock); if (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_NONE) { dvb_ca_en50221_slot_shutdown(ca, slot); if (ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE) @@ -1189,6 +1203,7 @@ static int dvb_ca_en50221_io_do_ioctl(struct inode *inode, struct file *file, slot, DVB_CA_EN50221_CAMCHANGE_INSERTED); } + mutex_unlock(&ca->slot_info[slot].slot_lock); } ca->next_read_slot = 0; dvb_ca_en50221_thread_wakeup(ca); @@ -1309,7 +1324,9 @@ static ssize_t dvb_ca_en50221_io_write(struct file *file, goto exit; } + mutex_lock(&ca->slot_info[slot].slot_lock); status = dvb_ca_en50221_write_data(ca, slot, fragbuf, fraglen + 2); + mutex_unlock(&ca->slot_info[slot].slot_lock); if (status == (fraglen + 2)) { written = 1; break; @@ -1665,6 +1682,7 @@ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter, ca->slot_info[i].slot_state = DVB_CA_SLOTSTATE_NONE; atomic_set(&ca->slot_info[i].camchange_count, 0); ca->slot_info[i].camchange_type = DVB_CA_EN50221_CAMCHANGE_REMOVED; + mutex_init(&ca->slot_info[i].slot_lock); } if (signal_pending(current)) { diff --git a/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.h b/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.h index 8467e63dd..7df2e1411 100644 --- a/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.h +++ b/linux/drivers/media/dvb/dvb-core/dvb_ca_en50221.h @@ -45,8 +45,10 @@ struct dvb_ca_en50221 { /* the module owning this structure */ struct module* owner; - /* NOTE: the read_*, write_* and poll_slot_status functions must use locks as - * they may be called from several threads at once */ + /* NOTE: the read_*, write_* and poll_slot_status functions will be + * called for different slots concurrently and need to use locks where + * and if appropriate. There will be no concurrent access to one slot. + */ /* functions for accessing attribute memory on the CAM */ int (*read_attribute_mem)(struct dvb_ca_en50221* ca, int slot, int address); diff --git a/linux/drivers/media/dvb/dvb-core/dvb_demux.c b/linux/drivers/media/dvb/dvb-core/dvb_demux.c index e2eca0b1f..a2c1fd5d2 100644 --- a/linux/drivers/media/dvb/dvb-core/dvb_demux.c +++ b/linux/drivers/media/dvb/dvb-core/dvb_demux.c @@ -399,7 +399,9 @@ static void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf) void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf, size_t count) { - spin_lock(&demux->lock); + unsigned long flags; + + spin_lock_irqsave(&demux->lock, flags); while (count--) { if (buf[0] == 0x47) @@ -407,16 +409,17 @@ void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf, buf += 188; } - spin_unlock(&demux->lock); + spin_unlock_irqrestore(&demux->lock, flags); } EXPORT_SYMBOL(dvb_dmx_swfilter_packets); void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count) { + unsigned long flags; int p = 0, i, j; - spin_lock(&demux->lock); + spin_lock_irqsave(&demux->lock, flags); if (demux->tsbufp) { i = demux->tsbufp; @@ -449,17 +452,18 @@ void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count) } bailout: - spin_unlock(&demux->lock); + spin_unlock_irqrestore(&demux->lock, flags); } EXPORT_SYMBOL(dvb_dmx_swfilter); void dvb_dmx_swfilter_204(struct dvb_demux *demux, const u8 *buf, size_t count) { + unsigned long flags; int p = 0, i, j; u8 tmppack[188]; - spin_lock(&demux->lock); + spin_lock_irqsave(&demux->lock, flags); if (demux->tsbufp) { i = demux->tsbufp; @@ -500,7 +504,7 @@ void dvb_dmx_swfilter_204(struct dvb_demux *demux, const u8 *buf, size_t count) } bailout: - spin_unlock(&demux->lock); + spin_unlock_irqrestore(&demux->lock, flags); } EXPORT_SYMBOL(dvb_dmx_swfilter_204); diff --git a/linux/drivers/media/dvb/dvb-core/dvb_frontend.c b/linux/drivers/media/dvb/dvb-core/dvb_frontend.c index 60a94dc85..6f0dc252f 100644 --- a/linux/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/linux/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -45,6 +45,7 @@ #include "dvb_frontend.h" #include "dvbdev.h" #include "compat.h" +#include <linux/dvb/version.h> static int dvb_frontend_debug; static int dvb_shutdown_timeout; @@ -766,6 +767,555 @@ static int dvb_frontend_check_parameters(struct dvb_frontend *fe, 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_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, + }, +#if 0 + [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, + }, +#endif + /* Get */ + [DTV_DISEQC_SLAVE_REPLY] = { + .name = "DTV_DISEQC_SLAVE_REPLY", + .cmd = DTV_DISEQC_SLAVE_REPLY, + .set = 0, + .buffer = 1, + }, +#if 0 + [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, + }, +#endif + [DTV_API_VERSION] = { + .name = "DTV_API_VERSION", + .cmd = DTV_API_VERSION, + .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: + 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) + c->bandwidth_hz = 8000000; + else + /* Including 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: + 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__); + 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) + p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; + else + 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: + 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_HZ: + tvp->u.data = fe->dtv_property_cache.bandwidth_hz; + 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; +#if 0 + /* 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; +#endif + case DTV_VOLTAGE: + tvp->u.data = fe->dtv_property_cache.voltage; + break; + 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; + 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_HZ: + fe->dtv_property_cache.bandwidth_hz = 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; +#if 0 + /* 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; +#endif + 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) { @@ -787,6 +1337,116 @@ static int dvb_frontend_ioctl(struct inode *inode, struct file *file, 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 { + fe->dtv_property_cache.state = DTV_UNDEFINED; + 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++) { + (tvp + i)->result = dtv_property_process_set(fe, tvp + i, inode, file); + err |= (tvp + i)->result; + } + + 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++) { + (tvp + i)->result = dtv_property_process_get(fe, tvp + i, inode, file); + err |= (tvp + i)->result; + } + + 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; @@ -953,13 +1613,21 @@ static int dvb_frontend_ioctl(struct inode *inode, struct file *file, case FE_SET_FRONTEND: { struct dvb_frontend_tune_settings fetunesettings; - if (dvb_frontend_check_parameters(fe, parg) < 0) { - err = -EINVAL; - break; - } + 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)); + 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, @@ -1038,10 +1706,10 @@ static int dvb_frontend_ioctl(struct inode *inode, struct file *file, 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; diff --git a/linux/drivers/media/dvb/dvb-core/dvb_frontend.h b/linux/drivers/media/dvb/dvb-core/dvb_frontend.h index aa4133f0b..a0c591b3b 100644 --- a/linux/drivers/media/dvb/dvb-core/dvb_frontend.h +++ b/linux/drivers/media/dvb/dvb-core/dvb_frontend.h @@ -169,6 +169,9 @@ struct dvb_frontend_ops { struct dvb_tuner_ops tuner_ops; struct analog_demod_ops analog_ops; + + int (*set_property)(struct dvb_frontend* fe, struct dtv_property* tvp); + int (*get_property)(struct dvb_frontend* fe, struct dtv_property* tvp); }; #define MAX_EVENT 8 @@ -182,6 +185,46 @@ struct dvb_fe_events { struct mutex mtx; }; +struct dtv_frontend_properties { + + /* Cache State */ + u32 state; + + u32 frequency; + fe_modulation_t modulation; + + fe_sec_voltage_t voltage; + fe_sec_tone_mode_t sectone; + fe_spectral_inversion_t inversion; + fe_code_rate_t fec_inner; + fe_transmit_mode_t transmission_mode; + u32 bandwidth_hz; /* 0 = AUTO */ + fe_guard_interval_t guard_interval; + fe_hierarchy_t hierarchy; + u32 symbol_rate; + fe_code_rate_t code_rate_HP; + fe_code_rate_t code_rate_LP; + + fe_pilot_t pilot; + fe_rolloff_t rolloff; + + fe_delivery_system_t delivery_system; +#if 0 + /* ISDB-T specifics */ + u32 isdb_segment_idx; + u32 isdb_segment_width; + fe_code_rate_t isdb_layera_fec; + fe_modulation_t isdb_layera_modulation; + u32 isdb_layera_segment_width; + fe_code_rate_t isdb_layerb_fec; + fe_modulation_t isdb_layerb_modulation; + u32 isdb_layerb_segment_width; + fe_code_rate_t isdb_layerc_fec; + fe_modulation_t isdb_layerc_modulation; + u32 isdb_layerc_segment_width; +#endif +}; + struct dvb_frontend { struct dvb_frontend_ops ops; struct dvb_adapter *dvb; @@ -190,6 +233,9 @@ struct dvb_frontend { void *frontend_priv; void *sec_priv; void *analog_demod_priv; + struct dtv_frontend_properties dtv_property_cache; +#define DVB_FRONTEND_COMPONENT_TUNER 0 + int (*callback)(void *adapter_priv, int component, int cmd, int arg); }; extern int dvb_register_frontend(struct dvb_adapter *dvb, |