+static 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,
+ },
+ [DTV_HIERARCHY] = {
+ .name = "DTV_HIERARCHY",
+ .cmd = DTV_HIERARCHY,
+ .set = 1,
+ },
+ [DTV_CODE_RATE_HP] = {
+ .name = "DTV_CODE_RATE_HP",
+ .cmd = DTV_CODE_RATE_HP,
+ .set = 1,
+ },
+ [DTV_CODE_RATE_LP] = {
+ .name = "DTV_CODE_RATE_LP",
+ .cmd = DTV_CODE_RATE_LP,
+ .set = 1,
+ },
+ [DTV_GUARD_INTERVAL] = {
+ .name = "DTV_GUARD_INTERVAL",
+ .cmd = DTV_GUARD_INTERVAL,
+ .set = 1,
+ },
+ [DTV_TRANSMISSION_MODE] = {
+ .name = "DTV_TRANSMISSION_MODE",
+ .cmd = DTV_TRANSMISSION_MODE,
+ .set = 1,
+ },
+ /* Get */
+ [DTV_DISEQC_SLAVE_REPLY] = {
+ .name = "DTV_DISEQC_SLAVE_REPLY",
+ .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,
+ },
+};
+
+static void dtv_property_dump(struct dtv_property *tvp)
+{
+ int i;
+
+ if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) {
+ printk(KERN_WARNING "%s: tvp.cmd = 0x%08x undefined\n",
+ __func__, tvp->cmd);
+ return;
+ }
+
+ dprintk("%s() tvp.cmd = 0x%08x (%s)\n"
+ ,__func__
+ ,tvp->cmd
+ ,dtv_cmds[ tvp->cmd ].name);
+
+ if(dtv_cmds[ tvp->cmd ].buffer) {
+
+ dprintk("%s() tvp.u.buffer.len = 0x%02x\n"
+ ,__func__
+ ,tvp->u.buffer.len);
+
+ for(i = 0; i < tvp->u.buffer.len; i++)
+ dprintk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n"
+ ,__func__
+ ,i
+ ,tvp->u.buffer.data[i]);
+
+ } else
+ dprintk("%s() tvp.u.data = 0x%08x\n", __func__, tvp->u.data);
+}
+
+static int is_legacy_delivery_system(fe_delivery_system_t s)
+{
+ if((s == SYS_UNDEFINED) || (s == SYS_DVBC_ANNEX_AC) ||
+ (s == SYS_DVBC_ANNEX_B) || (s == SYS_DVBT) || (s == SYS_DVBS) ||
+ (s == SYS_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.
+ */
+static void dtv_property_cache_sync(struct dvb_frontend *fe,
+ 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 */
+ 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.
+ */
+static void dtv_property_legacy_params_sync(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ struct dvb_frontend_private *fepriv = fe->frontend_priv;
+ struct dvb_frontend_parameters *p = &fepriv->parameters;
+
+ p->frequency = c->frequency;
+ p->inversion = c->inversion;
+
+ switch (fe->ops.info.type) {
+ case FE_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:
+ 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:
+ 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)
+ 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:
+ 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;
+ }
+}
+
+/* Ensure the cached values are set correctly in the frontend
+ * legacy tuning structures, for the legacy tuning API.
+ */
+static void dtv_property_adv_params_sync(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ struct dvb_frontend_private *fepriv = fe->frontend_priv;
+ struct dvb_frontend_parameters *p = &fepriv->parameters;
+
+ 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;
+ }
+
+ 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;
+ }
+}
+
+static 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);
+ }
+}
+
+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);
+
+static int dtv_property_process_get(struct dvb_frontend *fe,
+ struct dtv_property *tvp,
+ struct inode *inode, 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;
+
+ 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;
+ 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;
+ case DTV_CODE_RATE_HP:
+ tvp->u.data = fe->dtv_property_cache.code_rate_HP;
+ break;
+ case DTV_CODE_RATE_LP:
+ tvp->u.data = fe->dtv_property_cache.code_rate_LP;
+ break;
+ case DTV_GUARD_INTERVAL:
+ tvp->u.data = fe->dtv_property_cache.guard_interval;
+ break;
+ case DTV_TRANSMISSION_MODE:
+ tvp->u.data = fe->dtv_property_cache.transmission_mode;
+ break;
+ case DTV_HIERARCHY:
+ tvp->u.data = fe->dtv_property_cache.hierarchy;
+ break;
+ default:
+ r = -1;
+ }
+
+ return r;
+}
+
+static int dtv_property_process_set(struct dvb_frontend *fe,
+ struct dtv_property *tvp,
+ struct inode *inode,
+ struct file *file)
+{
+ int r = 0;
+ struct dvb_frontend_private *fepriv = fe->frontend_priv;
+ 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.
+ */
+ 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;
+ 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;
+ dprintk("%s() Finalised property cache\n", __func__);
+ 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;
+ 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;
+ case DTV_CODE_RATE_HP:
+ fe->dtv_property_cache.code_rate_HP = tvp->u.data;
+ break;
+ case DTV_CODE_RATE_LP:
+ fe->dtv_property_cache.code_rate_LP = tvp->u.data;
+ break;
+ case DTV_GUARD_INTERVAL:
+ fe->dtv_property_cache.guard_interval = tvp->u.data;
+ break;
+ case DTV_TRANSMISSION_MODE:
+ fe->dtv_property_cache.transmission_mode = tvp->u.data;
+ break;
+ case DTV_HIERARCHY:
+ fe->dtv_property_cache.hierarchy = tvp->u.data;
+ break;
+ default:
+ r = -1;
+ }
+
+ return r;
+}
+