help
Say Y when you want to support this frontend.
+config DVB_AS102_FE
+ tristate
+ depends on DVB_CORE
+ default DVB_AS102
+
comment "DVB-C (cable) frontends"
depends on DVB_CORE
obj-$(CONFIG_DVB_RTL2832_SDR) += rtl2832_sdr.o
obj-$(CONFIG_DVB_M88RS2000) += m88rs2000.o
obj-$(CONFIG_DVB_AF9033) += af9033.o
-
+obj-$(CONFIG_DVB_AS102_FE) += as102_fe.o
--- /dev/null
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ * Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <dvb_frontend.h>
+
+#include "as102_fe.h"
+
+struct as102_state {
+ struct dvb_frontend frontend;
+ struct as10x_demod_stats demod_stats;
+
+ const struct as102_fe_ops *ops;
+ void *priv;
+ uint8_t elna_cfg;
+
+ /* signal strength */
+ uint16_t signal_strength;
+ /* bit error rate */
+ uint32_t ber;
+};
+
+static uint8_t as102_fe_get_code_rate(fe_code_rate_t arg)
+{
+ uint8_t c;
+
+ switch (arg) {
+ case FEC_1_2:
+ c = CODE_RATE_1_2;
+ break;
+ case FEC_2_3:
+ c = CODE_RATE_2_3;
+ break;
+ case FEC_3_4:
+ c = CODE_RATE_3_4;
+ break;
+ case FEC_5_6:
+ c = CODE_RATE_5_6;
+ break;
+ case FEC_7_8:
+ c = CODE_RATE_7_8;
+ break;
+ default:
+ c = CODE_RATE_UNKNOWN;
+ break;
+ }
+
+ return c;
+}
+
+static int as102_fe_set_frontend(struct dvb_frontend *fe)
+{
+ struct as102_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ struct as10x_tune_args tune_args = { 0 };
+
+ /* set frequency */
+ tune_args.freq = c->frequency / 1000;
+
+ /* fix interleaving_mode */
+ tune_args.interleaving_mode = INTLV_NATIVE;
+
+ switch (c->bandwidth_hz) {
+ case 8000000:
+ tune_args.bandwidth = BW_8_MHZ;
+ break;
+ case 7000000:
+ tune_args.bandwidth = BW_7_MHZ;
+ break;
+ case 6000000:
+ tune_args.bandwidth = BW_6_MHZ;
+ break;
+ default:
+ tune_args.bandwidth = BW_8_MHZ;
+ }
+
+ switch (c->guard_interval) {
+ case GUARD_INTERVAL_1_32:
+ tune_args.guard_interval = GUARD_INT_1_32;
+ break;
+ case GUARD_INTERVAL_1_16:
+ tune_args.guard_interval = GUARD_INT_1_16;
+ break;
+ case GUARD_INTERVAL_1_8:
+ tune_args.guard_interval = GUARD_INT_1_8;
+ break;
+ case GUARD_INTERVAL_1_4:
+ tune_args.guard_interval = GUARD_INT_1_4;
+ break;
+ case GUARD_INTERVAL_AUTO:
+ default:
+ tune_args.guard_interval = GUARD_UNKNOWN;
+ break;
+ }
+
+ switch (c->modulation) {
+ case QPSK:
+ tune_args.modulation = CONST_QPSK;
+ break;
+ case QAM_16:
+ tune_args.modulation = CONST_QAM16;
+ break;
+ case QAM_64:
+ tune_args.modulation = CONST_QAM64;
+ break;
+ default:
+ tune_args.modulation = CONST_UNKNOWN;
+ break;
+ }
+
+ switch (c->transmission_mode) {
+ case TRANSMISSION_MODE_2K:
+ tune_args.transmission_mode = TRANS_MODE_2K;
+ break;
+ case TRANSMISSION_MODE_8K:
+ tune_args.transmission_mode = TRANS_MODE_8K;
+ break;
+ default:
+ tune_args.transmission_mode = TRANS_MODE_UNKNOWN;
+ }
+
+ switch (c->hierarchy) {
+ case HIERARCHY_NONE:
+ tune_args.hierarchy = HIER_NONE;
+ break;
+ case HIERARCHY_1:
+ tune_args.hierarchy = HIER_ALPHA_1;
+ break;
+ case HIERARCHY_2:
+ tune_args.hierarchy = HIER_ALPHA_2;
+ break;
+ case HIERARCHY_4:
+ tune_args.hierarchy = HIER_ALPHA_4;
+ break;
+ case HIERARCHY_AUTO:
+ tune_args.hierarchy = HIER_UNKNOWN;
+ break;
+ }
+
+ pr_debug("as102: tuner parameters: freq: %d bw: 0x%02x gi: 0x%02x\n",
+ c->frequency,
+ tune_args.bandwidth,
+ tune_args.guard_interval);
+
+ /*
+ * Detect a hierarchy selection
+ * if HP/LP are both set to FEC_NONE, HP will be selected.
+ */
+ if ((tune_args.hierarchy != HIER_NONE) &&
+ ((c->code_rate_LP == FEC_NONE) ||
+ (c->code_rate_HP == FEC_NONE))) {
+
+ if (c->code_rate_LP == FEC_NONE) {
+ tune_args.hier_select = HIER_HIGH_PRIORITY;
+ tune_args.code_rate =
+ as102_fe_get_code_rate(c->code_rate_HP);
+ }
+
+ if (c->code_rate_HP == FEC_NONE) {
+ tune_args.hier_select = HIER_LOW_PRIORITY;
+ tune_args.code_rate =
+ as102_fe_get_code_rate(c->code_rate_LP);
+ }
+
+ pr_debug("as102: \thierarchy: 0x%02x selected: %s code_rate_%s: 0x%02x\n",
+ tune_args.hierarchy,
+ tune_args.hier_select == HIER_HIGH_PRIORITY ?
+ "HP" : "LP",
+ tune_args.hier_select == HIER_HIGH_PRIORITY ?
+ "HP" : "LP",
+ tune_args.code_rate);
+ } else {
+ tune_args.code_rate =
+ as102_fe_get_code_rate(c->code_rate_HP);
+ }
+
+ /* Set frontend arguments */
+ return state->ops->set_tune(state->priv, &tune_args);
+}
+
+static int as102_fe_get_frontend(struct dvb_frontend *fe)
+{
+ struct as102_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ int ret = 0;
+ struct as10x_tps tps = { 0 };
+
+ /* send abilis command: GET_TPS */
+ ret = state->ops->get_tps(state->priv, &tps);
+ if (ret < 0)
+ return ret;
+
+ /* extract constellation */
+ switch (tps.modulation) {
+ case CONST_QPSK:
+ c->modulation = QPSK;
+ break;
+ case CONST_QAM16:
+ c->modulation = QAM_16;
+ break;
+ case CONST_QAM64:
+ c->modulation = QAM_64;
+ break;
+ }
+
+ /* extract hierarchy */
+ switch (tps.hierarchy) {
+ case HIER_NONE:
+ c->hierarchy = HIERARCHY_NONE;
+ break;
+ case HIER_ALPHA_1:
+ c->hierarchy = HIERARCHY_1;
+ break;
+ case HIER_ALPHA_2:
+ c->hierarchy = HIERARCHY_2;
+ break;
+ case HIER_ALPHA_4:
+ c->hierarchy = HIERARCHY_4;
+ break;
+ }
+
+ /* extract code rate HP */
+ switch (tps.code_rate_HP) {
+ case CODE_RATE_1_2:
+ c->code_rate_HP = FEC_1_2;
+ break;
+ case CODE_RATE_2_3:
+ c->code_rate_HP = FEC_2_3;
+ break;
+ case CODE_RATE_3_4:
+ c->code_rate_HP = FEC_3_4;
+ break;
+ case CODE_RATE_5_6:
+ c->code_rate_HP = FEC_5_6;
+ break;
+ case CODE_RATE_7_8:
+ c->code_rate_HP = FEC_7_8;
+ break;
+ }
+
+ /* extract code rate LP */
+ switch (tps.code_rate_LP) {
+ case CODE_RATE_1_2:
+ c->code_rate_LP = FEC_1_2;
+ break;
+ case CODE_RATE_2_3:
+ c->code_rate_LP = FEC_2_3;
+ break;
+ case CODE_RATE_3_4:
+ c->code_rate_LP = FEC_3_4;
+ break;
+ case CODE_RATE_5_6:
+ c->code_rate_LP = FEC_5_6;
+ break;
+ case CODE_RATE_7_8:
+ c->code_rate_LP = FEC_7_8;
+ break;
+ }
+
+ /* extract guard interval */
+ switch (tps.guard_interval) {
+ case GUARD_INT_1_32:
+ c->guard_interval = GUARD_INTERVAL_1_32;
+ break;
+ case GUARD_INT_1_16:
+ c->guard_interval = GUARD_INTERVAL_1_16;
+ break;
+ case GUARD_INT_1_8:
+ c->guard_interval = GUARD_INTERVAL_1_8;
+ break;
+ case GUARD_INT_1_4:
+ c->guard_interval = GUARD_INTERVAL_1_4;
+ break;
+ }
+
+ /* extract transmission mode */
+ switch (tps.transmission_mode) {
+ case TRANS_MODE_2K:
+ c->transmission_mode = TRANSMISSION_MODE_2K;
+ break;
+ case TRANS_MODE_8K:
+ c->transmission_mode = TRANSMISSION_MODE_8K;
+ break;
+ }
+
+ return 0;
+}
+
+static int as102_fe_get_tune_settings(struct dvb_frontend *fe,
+ struct dvb_frontend_tune_settings *settings) {
+
+ settings->min_delay_ms = 1000;
+
+ return 0;
+}
+
+static int as102_fe_read_status(struct dvb_frontend *fe, fe_status_t *status)
+{
+ int ret = 0;
+ struct as102_state *state = fe->demodulator_priv;
+ struct as10x_tune_status tstate = { 0 };
+
+ /* send abilis command: GET_TUNE_STATUS */
+ ret = state->ops->get_status(state->priv, &tstate);
+ if (ret < 0)
+ return ret;
+
+ state->signal_strength = tstate.signal_strength;
+ state->ber = tstate.BER;
+
+ switch (tstate.tune_state) {
+ case TUNE_STATUS_SIGNAL_DVB_OK:
+ *status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
+ break;
+ case TUNE_STATUS_STREAM_DETECTED:
+ *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC;
+ break;
+ case TUNE_STATUS_STREAM_TUNED:
+ *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC |
+ FE_HAS_LOCK;
+ break;
+ default:
+ *status = TUNE_STATUS_NOT_TUNED;
+ }
+
+ pr_debug("as102: tuner status: 0x%02x, strength %d, per: %d, ber: %d\n",
+ tstate.tune_state, tstate.signal_strength,
+ tstate.PER, tstate.BER);
+
+ if (!(*status & FE_HAS_LOCK)) {
+ memset(&state->demod_stats, 0, sizeof(state->demod_stats));
+ return 0;
+ }
+
+ ret = state->ops->get_stats(state->priv, &state->demod_stats);
+ if (ret < 0)
+ memset(&state->demod_stats, 0, sizeof(state->demod_stats));
+
+ return ret;
+}
+
+/*
+ * Note:
+ * - in AS102 SNR=MER
+ * - the SNR will be returned in linear terms, i.e. not in dB
+ * - the accuracy equals ±2dB for a SNR range from 4dB to 30dB
+ * - the accuracy is >2dB for SNR values outside this range
+ */
+static int as102_fe_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+ struct as102_state *state = fe->demodulator_priv;
+
+ *snr = state->demod_stats.mer;
+
+ return 0;
+}
+
+static int as102_fe_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+ struct as102_state *state = fe->demodulator_priv;
+
+ *ber = state->ber;
+
+ return 0;
+}
+
+static int as102_fe_read_signal_strength(struct dvb_frontend *fe,
+ u16 *strength)
+{
+ struct as102_state *state = fe->demodulator_priv;
+
+ *strength = (((0xffff * 400) * state->signal_strength + 41000) * 2);
+
+ return 0;
+}
+
+static int as102_fe_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
+{
+ struct as102_state *state = fe->demodulator_priv;
+
+ if (state->demod_stats.has_started)
+ *ucblocks = state->demod_stats.bad_frame_count;
+ else
+ *ucblocks = 0;
+
+ return 0;
+}
+
+static int as102_fe_ts_bus_ctrl(struct dvb_frontend *fe, int acquire)
+{
+ struct as102_state *state = fe->demodulator_priv;
+
+ return state->ops->stream_ctrl(state->priv, acquire,
+ state->elna_cfg);
+}
+
+static struct dvb_frontend_ops as102_fe_ops = {
+ .delsys = { SYS_DVBT },
+ .info = {
+ .name = "Abilis AS102 DVB-T",
+ .frequency_min = 174000000,
+ .frequency_max = 862000000,
+ .frequency_stepsize = 166667,
+ .caps = FE_CAN_INVERSION_AUTO
+ | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4
+ | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO
+ | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QPSK
+ | FE_CAN_QAM_AUTO
+ | FE_CAN_TRANSMISSION_MODE_AUTO
+ | FE_CAN_GUARD_INTERVAL_AUTO
+ | FE_CAN_HIERARCHY_AUTO
+ | FE_CAN_RECOVER
+ | FE_CAN_MUTE_TS
+ },
+
+ .set_frontend = as102_fe_set_frontend,
+ .get_frontend = as102_fe_get_frontend,
+ .get_tune_settings = as102_fe_get_tune_settings,
+
+ .read_status = as102_fe_read_status,
+ .read_snr = as102_fe_read_snr,
+ .read_ber = as102_fe_read_ber,
+ .read_signal_strength = as102_fe_read_signal_strength,
+ .read_ucblocks = as102_fe_read_ucblocks,
+ .ts_bus_ctrl = as102_fe_ts_bus_ctrl,
+};
+
+struct dvb_frontend *as102_attach(const char *name,
+ const struct as102_fe_ops *ops,
+ void *priv,
+ uint8_t elna_cfg)
+{
+ struct as102_state *state;
+ struct dvb_frontend *fe;
+
+ state = kzalloc(sizeof(struct as102_state), GFP_KERNEL);
+ if (state == NULL) {
+ pr_err("%s: unable to allocate memory for state\n", __func__);
+ return NULL;
+ }
+ fe = &state->frontend;
+ fe->demodulator_priv = state;
+ state->ops = ops;
+ state->priv = priv;
+ state->elna_cfg = elna_cfg;
+
+ /* init frontend callback ops */
+ memcpy(&fe->ops, &as102_fe_ops, sizeof(struct dvb_frontend_ops));
+ strncpy(fe->ops.info.name, name, sizeof(fe->ops.info.name));
+
+ return fe;
+
+}
+EXPORT_SYMBOL_GPL(as102_attach);
+
+MODULE_DESCRIPTION("as102-fe");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Pierrick Hascoet <pierrick.hascoet@abilis.com>");
--- /dev/null
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2014 Mauro Carvalho Chehab <m.chehab@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include "as102_fe_types.h"
+
+struct as102_fe_ops {
+ int (*set_tune)(void *priv, struct as10x_tune_args *tune_args);
+ int (*get_tps)(void *priv, struct as10x_tps *tps);
+ int (*get_status)(void *priv, struct as10x_tune_status *tstate);
+ int (*get_stats)(void *priv, struct as10x_demod_stats *demod_stats);
+ int (*stream_ctrl)(void *priv, int acquire, uint32_t elna_cfg);
+};
+
+struct dvb_frontend *as102_attach(const char *name,
+ const struct as102_fe_ops *ops,
+ void *priv,
+ uint8_t elna_cfg);
--- /dev/null
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#ifndef _AS10X_TYPES_H_
+#define _AS10X_TYPES_H_
+
+/*********************************/
+/* MACRO DEFINITIONS */
+/*********************************/
+
+/* bandwidth constant values */
+#define BW_5_MHZ 0x00
+#define BW_6_MHZ 0x01
+#define BW_7_MHZ 0x02
+#define BW_8_MHZ 0x03
+
+/* hierarchy priority selection values */
+#define HIER_NO_PRIORITY 0x00
+#define HIER_LOW_PRIORITY 0x01
+#define HIER_HIGH_PRIORITY 0x02
+
+/* constellation available values */
+#define CONST_QPSK 0x00
+#define CONST_QAM16 0x01
+#define CONST_QAM64 0x02
+#define CONST_UNKNOWN 0xFF
+
+/* hierarchy available values */
+#define HIER_NONE 0x00
+#define HIER_ALPHA_1 0x01
+#define HIER_ALPHA_2 0x02
+#define HIER_ALPHA_4 0x03
+#define HIER_UNKNOWN 0xFF
+
+/* interleaving available values */
+#define INTLV_NATIVE 0x00
+#define INTLV_IN_DEPTH 0x01
+#define INTLV_UNKNOWN 0xFF
+
+/* code rate available values */
+#define CODE_RATE_1_2 0x00
+#define CODE_RATE_2_3 0x01
+#define CODE_RATE_3_4 0x02
+#define CODE_RATE_5_6 0x03
+#define CODE_RATE_7_8 0x04
+#define CODE_RATE_UNKNOWN 0xFF
+
+/* guard interval available values */
+#define GUARD_INT_1_32 0x00
+#define GUARD_INT_1_16 0x01
+#define GUARD_INT_1_8 0x02
+#define GUARD_INT_1_4 0x03
+#define GUARD_UNKNOWN 0xFF
+
+/* transmission mode available values */
+#define TRANS_MODE_2K 0x00
+#define TRANS_MODE_8K 0x01
+#define TRANS_MODE_4K 0x02
+#define TRANS_MODE_UNKNOWN 0xFF
+
+/* DVBH signalling available values */
+#define TIMESLICING_PRESENT 0x01
+#define MPE_FEC_PRESENT 0x02
+
+/* tune state available */
+#define TUNE_STATUS_NOT_TUNED 0x00
+#define TUNE_STATUS_IDLE 0x01
+#define TUNE_STATUS_LOCKING 0x02
+#define TUNE_STATUS_SIGNAL_DVB_OK 0x03
+#define TUNE_STATUS_STREAM_DETECTED 0x04
+#define TUNE_STATUS_STREAM_TUNED 0x05
+#define TUNE_STATUS_ERROR 0xFF
+
+/* available TS FID filter types */
+#define TS_PID_TYPE_TS 0
+#define TS_PID_TYPE_PSI_SI 1
+#define TS_PID_TYPE_MPE 2
+
+/* number of echos available */
+#define MAX_ECHOS 15
+
+/* Context types */
+#define CONTEXT_LNA 1010
+#define CONTEXT_ELNA_HYSTERESIS 4003
+#define CONTEXT_ELNA_GAIN 4004
+#define CONTEXT_MER_THRESHOLD 5005
+#define CONTEXT_MER_OFFSET 5006
+#define CONTEXT_IR_STATE 7000
+#define CONTEXT_TSOUT_MSB_FIRST 7004
+#define CONTEXT_TSOUT_FALLING_EDGE 7005
+
+/* Configuration modes */
+#define CFG_MODE_ON 0
+#define CFG_MODE_OFF 1
+#define CFG_MODE_AUTO 2
+
+struct as10x_tps {
+ uint8_t modulation;
+ uint8_t hierarchy;
+ uint8_t interleaving_mode;
+ uint8_t code_rate_HP;
+ uint8_t code_rate_LP;
+ uint8_t guard_interval;
+ uint8_t transmission_mode;
+ uint8_t DVBH_mask_HP;
+ uint8_t DVBH_mask_LP;
+ uint16_t cell_ID;
+} __packed;
+
+struct as10x_tune_args {
+ /* frequency */
+ uint32_t freq;
+ /* bandwidth */
+ uint8_t bandwidth;
+ /* hierarchy selection */
+ uint8_t hier_select;
+ /* constellation */
+ uint8_t modulation;
+ /* hierarchy */
+ uint8_t hierarchy;
+ /* interleaving mode */
+ uint8_t interleaving_mode;
+ /* code rate */
+ uint8_t code_rate;
+ /* guard interval */
+ uint8_t guard_interval;
+ /* transmission mode */
+ uint8_t transmission_mode;
+} __packed;
+
+struct as10x_tune_status {
+ /* tune status */
+ uint8_t tune_state;
+ /* signal strength */
+ int16_t signal_strength;
+ /* packet error rate 10^-4 */
+ uint16_t PER;
+ /* bit error rate 10^-4 */
+ uint16_t BER;
+} __packed;
+
+struct as10x_demod_stats {
+ /* frame counter */
+ uint32_t frame_count;
+ /* Bad frame counter */
+ uint32_t bad_frame_count;
+ /* Number of wrong bytes fixed by Reed-Solomon */
+ uint32_t bytes_fixed_by_rs;
+ /* Averaged MER */
+ uint16_t mer;
+ /* statistics calculation state indicator (started or not) */
+ uint8_t has_started;
+} __packed;
+
+struct as10x_ts_filter {
+ uint16_t pid; /* valid PID value 0x00 : 0x2000 */
+ uint8_t type; /* Red TS_PID_TYPE_<N> values */
+ uint8_t idx; /* index in filtering table */
+} __packed;
+
+struct as10x_register_value {
+ uint8_t mode;
+ union {
+ uint8_t value8; /* 8 bit value */
+ uint16_t value16; /* 16 bit value */
+ uint32_t value32; /* 32 bit value */
+ } __packed u;
+} __packed;
+
+struct as10x_register_addr {
+ /* register addr */
+ uint32_t addr;
+ /* register mode access */
+ uint8_t mode;
+};
+
+#endif
dvb-as102-objs := as102_drv.o as102_fw.o as10x_cmd.o as10x_cmd_stream.o \
- as102_fe.o as102_usb_drv.o as10x_cmd_cfg.o
+ as102_usb_drv.o as10x_cmd_cfg.o
obj-$(CONFIG_DVB_AS102) += dvb-as102.o
ccflags-y += -Idrivers/media/dvb-core
+ccflags-y += -Idrivers/media/dvb-frontends
+++ /dev/null
-/*
- * Abilis Systems Single DVB-T Receiver
- * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
- * Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <dvb_frontend.h>
-
-#include "as102_fe.h"
-
-struct as102_state {
- struct dvb_frontend frontend;
- struct as10x_demod_stats demod_stats;
-
- const struct as102_fe_ops *ops;
- void *priv;
- uint8_t elna_cfg;
-
- /* signal strength */
- uint16_t signal_strength;
- /* bit error rate */
- uint32_t ber;
-};
-
-static uint8_t as102_fe_get_code_rate(fe_code_rate_t arg)
-{
- uint8_t c;
-
- switch (arg) {
- case FEC_1_2:
- c = CODE_RATE_1_2;
- break;
- case FEC_2_3:
- c = CODE_RATE_2_3;
- break;
- case FEC_3_4:
- c = CODE_RATE_3_4;
- break;
- case FEC_5_6:
- c = CODE_RATE_5_6;
- break;
- case FEC_7_8:
- c = CODE_RATE_7_8;
- break;
- default:
- c = CODE_RATE_UNKNOWN;
- break;
- }
-
- return c;
-}
-
-static int as102_fe_set_frontend(struct dvb_frontend *fe)
-{
- struct as102_state *state = fe->demodulator_priv;
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- struct as10x_tune_args tune_args = { 0 };
-
- /* set frequency */
- tune_args.freq = c->frequency / 1000;
-
- /* fix interleaving_mode */
- tune_args.interleaving_mode = INTLV_NATIVE;
-
- switch (c->bandwidth_hz) {
- case 8000000:
- tune_args.bandwidth = BW_8_MHZ;
- break;
- case 7000000:
- tune_args.bandwidth = BW_7_MHZ;
- break;
- case 6000000:
- tune_args.bandwidth = BW_6_MHZ;
- break;
- default:
- tune_args.bandwidth = BW_8_MHZ;
- }
-
- switch (c->guard_interval) {
- case GUARD_INTERVAL_1_32:
- tune_args.guard_interval = GUARD_INT_1_32;
- break;
- case GUARD_INTERVAL_1_16:
- tune_args.guard_interval = GUARD_INT_1_16;
- break;
- case GUARD_INTERVAL_1_8:
- tune_args.guard_interval = GUARD_INT_1_8;
- break;
- case GUARD_INTERVAL_1_4:
- tune_args.guard_interval = GUARD_INT_1_4;
- break;
- case GUARD_INTERVAL_AUTO:
- default:
- tune_args.guard_interval = GUARD_UNKNOWN;
- break;
- }
-
- switch (c->modulation) {
- case QPSK:
- tune_args.modulation = CONST_QPSK;
- break;
- case QAM_16:
- tune_args.modulation = CONST_QAM16;
- break;
- case QAM_64:
- tune_args.modulation = CONST_QAM64;
- break;
- default:
- tune_args.modulation = CONST_UNKNOWN;
- break;
- }
-
- switch (c->transmission_mode) {
- case TRANSMISSION_MODE_2K:
- tune_args.transmission_mode = TRANS_MODE_2K;
- break;
- case TRANSMISSION_MODE_8K:
- tune_args.transmission_mode = TRANS_MODE_8K;
- break;
- default:
- tune_args.transmission_mode = TRANS_MODE_UNKNOWN;
- }
-
- switch (c->hierarchy) {
- case HIERARCHY_NONE:
- tune_args.hierarchy = HIER_NONE;
- break;
- case HIERARCHY_1:
- tune_args.hierarchy = HIER_ALPHA_1;
- break;
- case HIERARCHY_2:
- tune_args.hierarchy = HIER_ALPHA_2;
- break;
- case HIERARCHY_4:
- tune_args.hierarchy = HIER_ALPHA_4;
- break;
- case HIERARCHY_AUTO:
- tune_args.hierarchy = HIER_UNKNOWN;
- break;
- }
-
- pr_debug("as102: tuner parameters: freq: %d bw: 0x%02x gi: 0x%02x\n",
- c->frequency,
- tune_args.bandwidth,
- tune_args.guard_interval);
-
- /*
- * Detect a hierarchy selection
- * if HP/LP are both set to FEC_NONE, HP will be selected.
- */
- if ((tune_args.hierarchy != HIER_NONE) &&
- ((c->code_rate_LP == FEC_NONE) ||
- (c->code_rate_HP == FEC_NONE))) {
-
- if (c->code_rate_LP == FEC_NONE) {
- tune_args.hier_select = HIER_HIGH_PRIORITY;
- tune_args.code_rate =
- as102_fe_get_code_rate(c->code_rate_HP);
- }
-
- if (c->code_rate_HP == FEC_NONE) {
- tune_args.hier_select = HIER_LOW_PRIORITY;
- tune_args.code_rate =
- as102_fe_get_code_rate(c->code_rate_LP);
- }
-
- pr_debug("as102: \thierarchy: 0x%02x selected: %s code_rate_%s: 0x%02x\n",
- tune_args.hierarchy,
- tune_args.hier_select == HIER_HIGH_PRIORITY ?
- "HP" : "LP",
- tune_args.hier_select == HIER_HIGH_PRIORITY ?
- "HP" : "LP",
- tune_args.code_rate);
- } else {
- tune_args.code_rate =
- as102_fe_get_code_rate(c->code_rate_HP);
- }
-
- /* Set frontend arguments */
- return state->ops->set_tune(state->priv, &tune_args);
-}
-
-static int as102_fe_get_frontend(struct dvb_frontend *fe)
-{
- struct as102_state *state = fe->demodulator_priv;
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- int ret = 0;
- struct as10x_tps tps = { 0 };
-
- /* send abilis command: GET_TPS */
- ret = state->ops->get_tps(state->priv, &tps);
- if (ret < 0)
- return ret;
-
- /* extract constellation */
- switch (tps.modulation) {
- case CONST_QPSK:
- c->modulation = QPSK;
- break;
- case CONST_QAM16:
- c->modulation = QAM_16;
- break;
- case CONST_QAM64:
- c->modulation = QAM_64;
- break;
- }
-
- /* extract hierarchy */
- switch (tps.hierarchy) {
- case HIER_NONE:
- c->hierarchy = HIERARCHY_NONE;
- break;
- case HIER_ALPHA_1:
- c->hierarchy = HIERARCHY_1;
- break;
- case HIER_ALPHA_2:
- c->hierarchy = HIERARCHY_2;
- break;
- case HIER_ALPHA_4:
- c->hierarchy = HIERARCHY_4;
- break;
- }
-
- /* extract code rate HP */
- switch (tps.code_rate_HP) {
- case CODE_RATE_1_2:
- c->code_rate_HP = FEC_1_2;
- break;
- case CODE_RATE_2_3:
- c->code_rate_HP = FEC_2_3;
- break;
- case CODE_RATE_3_4:
- c->code_rate_HP = FEC_3_4;
- break;
- case CODE_RATE_5_6:
- c->code_rate_HP = FEC_5_6;
- break;
- case CODE_RATE_7_8:
- c->code_rate_HP = FEC_7_8;
- break;
- }
-
- /* extract code rate LP */
- switch (tps.code_rate_LP) {
- case CODE_RATE_1_2:
- c->code_rate_LP = FEC_1_2;
- break;
- case CODE_RATE_2_3:
- c->code_rate_LP = FEC_2_3;
- break;
- case CODE_RATE_3_4:
- c->code_rate_LP = FEC_3_4;
- break;
- case CODE_RATE_5_6:
- c->code_rate_LP = FEC_5_6;
- break;
- case CODE_RATE_7_8:
- c->code_rate_LP = FEC_7_8;
- break;
- }
-
- /* extract guard interval */
- switch (tps.guard_interval) {
- case GUARD_INT_1_32:
- c->guard_interval = GUARD_INTERVAL_1_32;
- break;
- case GUARD_INT_1_16:
- c->guard_interval = GUARD_INTERVAL_1_16;
- break;
- case GUARD_INT_1_8:
- c->guard_interval = GUARD_INTERVAL_1_8;
- break;
- case GUARD_INT_1_4:
- c->guard_interval = GUARD_INTERVAL_1_4;
- break;
- }
-
- /* extract transmission mode */
- switch (tps.transmission_mode) {
- case TRANS_MODE_2K:
- c->transmission_mode = TRANSMISSION_MODE_2K;
- break;
- case TRANS_MODE_8K:
- c->transmission_mode = TRANSMISSION_MODE_8K;
- break;
- }
-
- return 0;
-}
-
-static int as102_fe_get_tune_settings(struct dvb_frontend *fe,
- struct dvb_frontend_tune_settings *settings) {
-
- settings->min_delay_ms = 1000;
-
- return 0;
-}
-
-static int as102_fe_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
- int ret = 0;
- struct as102_state *state = fe->demodulator_priv;
- struct as10x_tune_status tstate = { 0 };
-
- /* send abilis command: GET_TUNE_STATUS */
- ret = state->ops->get_status(state->priv, &tstate);
- if (ret < 0)
- return ret;
-
- state->signal_strength = tstate.signal_strength;
- state->ber = tstate.BER;
-
- switch (tstate.tune_state) {
- case TUNE_STATUS_SIGNAL_DVB_OK:
- *status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
- break;
- case TUNE_STATUS_STREAM_DETECTED:
- *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC;
- break;
- case TUNE_STATUS_STREAM_TUNED:
- *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC |
- FE_HAS_LOCK;
- break;
- default:
- *status = TUNE_STATUS_NOT_TUNED;
- }
-
- pr_debug("as102: tuner status: 0x%02x, strength %d, per: %d, ber: %d\n",
- tstate.tune_state, tstate.signal_strength,
- tstate.PER, tstate.BER);
-
- if (!(*status & FE_HAS_LOCK)) {
- memset(&state->demod_stats, 0, sizeof(state->demod_stats));
- return 0;
- }
-
- ret = state->ops->get_stats(state->priv, &state->demod_stats);
- if (ret < 0)
- memset(&state->demod_stats, 0, sizeof(state->demod_stats));
-
- return ret;
-}
-
-/*
- * Note:
- * - in AS102 SNR=MER
- * - the SNR will be returned in linear terms, i.e. not in dB
- * - the accuracy equals ±2dB for a SNR range from 4dB to 30dB
- * - the accuracy is >2dB for SNR values outside this range
- */
-static int as102_fe_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
- struct as102_state *state = fe->demodulator_priv;
-
- *snr = state->demod_stats.mer;
-
- return 0;
-}
-
-static int as102_fe_read_ber(struct dvb_frontend *fe, u32 *ber)
-{
- struct as102_state *state = fe->demodulator_priv;
-
- *ber = state->ber;
-
- return 0;
-}
-
-static int as102_fe_read_signal_strength(struct dvb_frontend *fe,
- u16 *strength)
-{
- struct as102_state *state = fe->demodulator_priv;
-
- *strength = (((0xffff * 400) * state->signal_strength + 41000) * 2);
-
- return 0;
-}
-
-static int as102_fe_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
-{
- struct as102_state *state = fe->demodulator_priv;
-
- if (state->demod_stats.has_started)
- *ucblocks = state->demod_stats.bad_frame_count;
- else
- *ucblocks = 0;
-
- return 0;
-}
-
-static int as102_fe_ts_bus_ctrl(struct dvb_frontend *fe, int acquire)
-{
- struct as102_state *state = fe->demodulator_priv;
-
- return state->ops->stream_ctrl(state->priv, acquire,
- state->elna_cfg);
-}
-
-static struct dvb_frontend_ops as102_fe_ops = {
- .delsys = { SYS_DVBT },
- .info = {
- .name = "Abilis AS102 DVB-T",
- .frequency_min = 174000000,
- .frequency_max = 862000000,
- .frequency_stepsize = 166667,
- .caps = FE_CAN_INVERSION_AUTO
- | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4
- | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO
- | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QPSK
- | FE_CAN_QAM_AUTO
- | FE_CAN_TRANSMISSION_MODE_AUTO
- | FE_CAN_GUARD_INTERVAL_AUTO
- | FE_CAN_HIERARCHY_AUTO
- | FE_CAN_RECOVER
- | FE_CAN_MUTE_TS
- },
-
- .set_frontend = as102_fe_set_frontend,
- .get_frontend = as102_fe_get_frontend,
- .get_tune_settings = as102_fe_get_tune_settings,
-
- .read_status = as102_fe_read_status,
- .read_snr = as102_fe_read_snr,
- .read_ber = as102_fe_read_ber,
- .read_signal_strength = as102_fe_read_signal_strength,
- .read_ucblocks = as102_fe_read_ucblocks,
- .ts_bus_ctrl = as102_fe_ts_bus_ctrl,
-};
-
-struct dvb_frontend *as102_attach(const char *name,
- const struct as102_fe_ops *ops,
- void *priv,
- uint8_t elna_cfg)
-{
- struct as102_state *state;
- struct dvb_frontend *fe;
-
- state = kzalloc(sizeof(struct as102_state), GFP_KERNEL);
- if (state == NULL) {
- pr_err("%s: unable to allocate memory for state\n", __func__);
- return NULL;
- }
- fe = &state->frontend;
- fe->demodulator_priv = state;
- state->ops = ops;
- state->priv = priv;
- state->elna_cfg = elna_cfg;
-
- /* init frontend callback ops */
- memcpy(&fe->ops, &as102_fe_ops, sizeof(struct dvb_frontend_ops));
- strncpy(fe->ops.info.name, name, sizeof(fe->ops.info.name));
-
- return fe;
-
-}
-EXPORT_SYMBOL_GPL(as102_attach);
+++ /dev/null
-/*
- * Abilis Systems Single DVB-T Receiver
- * Copyright (C) 2014 Mauro Carvalho Chehab <m.chehab@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include "as10x_types.h"
-
-struct as102_fe_ops {
- int (*set_tune)(void *priv, struct as10x_tune_args *tune_args);
- int (*get_tps)(void *priv, struct as10x_tps *tps);
- int (*get_status)(void *priv, struct as10x_tune_status *tstate);
- int (*get_stats)(void *priv, struct as10x_demod_stats *demod_stats);
- int (*stream_ctrl)(void *priv, int acquire, uint32_t elna_cfg);
-};
-
-struct dvb_frontend *as102_attach(const char *name,
- const struct as102_fe_ops *ops,
- void *priv,
- uint8_t elna_cfg);
#include <linux/kernel.h>
#include "as102_drv.h"
-#include "as10x_types.h"
#include "as10x_cmd.h"
/**
#include <linux/kernel.h>
-#include "as10x_types.h"
+#include "as102_fe_types.h"
/*********************************/
/* MACRO DEFINITIONS */
#include <linux/kernel.h>
#include "as102_drv.h"
-#include "as10x_types.h"
#include "as10x_cmd.h"
/***************************/
+++ /dev/null
-/*
- * Abilis Systems Single DVB-T Receiver
- * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-#ifndef _AS10X_TYPES_H_
-#define _AS10X_TYPES_H_
-
-/*********************************/
-/* MACRO DEFINITIONS */
-/*********************************/
-
-/* bandwidth constant values */
-#define BW_5_MHZ 0x00
-#define BW_6_MHZ 0x01
-#define BW_7_MHZ 0x02
-#define BW_8_MHZ 0x03
-
-/* hierarchy priority selection values */
-#define HIER_NO_PRIORITY 0x00
-#define HIER_LOW_PRIORITY 0x01
-#define HIER_HIGH_PRIORITY 0x02
-
-/* constellation available values */
-#define CONST_QPSK 0x00
-#define CONST_QAM16 0x01
-#define CONST_QAM64 0x02
-#define CONST_UNKNOWN 0xFF
-
-/* hierarchy available values */
-#define HIER_NONE 0x00
-#define HIER_ALPHA_1 0x01
-#define HIER_ALPHA_2 0x02
-#define HIER_ALPHA_4 0x03
-#define HIER_UNKNOWN 0xFF
-
-/* interleaving available values */
-#define INTLV_NATIVE 0x00
-#define INTLV_IN_DEPTH 0x01
-#define INTLV_UNKNOWN 0xFF
-
-/* code rate available values */
-#define CODE_RATE_1_2 0x00
-#define CODE_RATE_2_3 0x01
-#define CODE_RATE_3_4 0x02
-#define CODE_RATE_5_6 0x03
-#define CODE_RATE_7_8 0x04
-#define CODE_RATE_UNKNOWN 0xFF
-
-/* guard interval available values */
-#define GUARD_INT_1_32 0x00
-#define GUARD_INT_1_16 0x01
-#define GUARD_INT_1_8 0x02
-#define GUARD_INT_1_4 0x03
-#define GUARD_UNKNOWN 0xFF
-
-/* transmission mode available values */
-#define TRANS_MODE_2K 0x00
-#define TRANS_MODE_8K 0x01
-#define TRANS_MODE_4K 0x02
-#define TRANS_MODE_UNKNOWN 0xFF
-
-/* DVBH signalling available values */
-#define TIMESLICING_PRESENT 0x01
-#define MPE_FEC_PRESENT 0x02
-
-/* tune state available */
-#define TUNE_STATUS_NOT_TUNED 0x00
-#define TUNE_STATUS_IDLE 0x01
-#define TUNE_STATUS_LOCKING 0x02
-#define TUNE_STATUS_SIGNAL_DVB_OK 0x03
-#define TUNE_STATUS_STREAM_DETECTED 0x04
-#define TUNE_STATUS_STREAM_TUNED 0x05
-#define TUNE_STATUS_ERROR 0xFF
-
-/* available TS FID filter types */
-#define TS_PID_TYPE_TS 0
-#define TS_PID_TYPE_PSI_SI 1
-#define TS_PID_TYPE_MPE 2
-
-/* number of echos available */
-#define MAX_ECHOS 15
-
-/* Context types */
-#define CONTEXT_LNA 1010
-#define CONTEXT_ELNA_HYSTERESIS 4003
-#define CONTEXT_ELNA_GAIN 4004
-#define CONTEXT_MER_THRESHOLD 5005
-#define CONTEXT_MER_OFFSET 5006
-#define CONTEXT_IR_STATE 7000
-#define CONTEXT_TSOUT_MSB_FIRST 7004
-#define CONTEXT_TSOUT_FALLING_EDGE 7005
-
-/* Configuration modes */
-#define CFG_MODE_ON 0
-#define CFG_MODE_OFF 1
-#define CFG_MODE_AUTO 2
-
-struct as10x_tps {
- uint8_t modulation;
- uint8_t hierarchy;
- uint8_t interleaving_mode;
- uint8_t code_rate_HP;
- uint8_t code_rate_LP;
- uint8_t guard_interval;
- uint8_t transmission_mode;
- uint8_t DVBH_mask_HP;
- uint8_t DVBH_mask_LP;
- uint16_t cell_ID;
-} __packed;
-
-struct as10x_tune_args {
- /* frequency */
- uint32_t freq;
- /* bandwidth */
- uint8_t bandwidth;
- /* hierarchy selection */
- uint8_t hier_select;
- /* constellation */
- uint8_t modulation;
- /* hierarchy */
- uint8_t hierarchy;
- /* interleaving mode */
- uint8_t interleaving_mode;
- /* code rate */
- uint8_t code_rate;
- /* guard interval */
- uint8_t guard_interval;
- /* transmission mode */
- uint8_t transmission_mode;
-} __packed;
-
-struct as10x_tune_status {
- /* tune status */
- uint8_t tune_state;
- /* signal strength */
- int16_t signal_strength;
- /* packet error rate 10^-4 */
- uint16_t PER;
- /* bit error rate 10^-4 */
- uint16_t BER;
-} __packed;
-
-struct as10x_demod_stats {
- /* frame counter */
- uint32_t frame_count;
- /* Bad frame counter */
- uint32_t bad_frame_count;
- /* Number of wrong bytes fixed by Reed-Solomon */
- uint32_t bytes_fixed_by_rs;
- /* Averaged MER */
- uint16_t mer;
- /* statistics calculation state indicator (started or not) */
- uint8_t has_started;
-} __packed;
-
-struct as10x_ts_filter {
- uint16_t pid; /* valid PID value 0x00 : 0x2000 */
- uint8_t type; /* Red TS_PID_TYPE_<N> values */
- uint8_t idx; /* index in filtering table */
-} __packed;
-
-struct as10x_register_value {
- uint8_t mode;
- union {
- uint8_t value8; /* 8 bit value */
- uint16_t value16; /* 16 bit value */
- uint32_t value32; /* 32 bit value */
- } __packed u;
-} __packed;
-
-struct as10x_register_addr {
- /* register addr */
- uint32_t addr;
- /* register mode access */
- uint8_t mode;
-};
-
-#endif
projects / mirror_ubuntu-jammy-kernel.git / commitdiff