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Diffstat (limited to 'drivers/staging/media/as102/as102_fe.c')
-rw-r--r--drivers/staging/media/as102/as102_fe.c571
1 files changed, 0 insertions, 571 deletions
diff --git a/drivers/staging/media/as102/as102_fe.c b/drivers/staging/media/as102/as102_fe.c
deleted file mode 100644
index b686b76..0000000
--- a/drivers/staging/media/as102/as102_fe.c
+++ /dev/null
@@ -1,571 +0,0 @@
-/*
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#include "as102_drv.h"
-#include "as10x_types.h"
-#include "as10x_cmd.h"
-
-static void as10x_fe_copy_tps_parameters(struct dtv_frontend_properties *dst,
- struct as10x_tps *src);
-
-static void as102_fe_copy_tune_parameters(struct as10x_tune_args *dst,
- struct dtv_frontend_properties *src);
-
-static int as102_fe_set_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- int ret = 0;
- struct as102_dev_t *dev;
- struct as10x_tune_args tune_args = { 0 };
-
- dev = (struct as102_dev_t *) fe->tuner_priv;
- if (dev == NULL)
- return -ENODEV;
-
- if (mutex_lock_interruptible(&dev->bus_adap.lock))
- return -EBUSY;
-
- as102_fe_copy_tune_parameters(&tune_args, p);
-
- /* send abilis command: SET_TUNE */
- ret = as10x_cmd_set_tune(&dev->bus_adap, &tune_args);
- if (ret != 0)
- dprintk(debug, "as10x_cmd_set_tune failed. (err = %d)\n", ret);
-
- mutex_unlock(&dev->bus_adap.lock);
-
- return (ret < 0) ? -EINVAL : 0;
-}
-
-static int as102_fe_get_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- int ret = 0;
- struct as102_dev_t *dev;
- struct as10x_tps tps = { 0 };
-
- dev = (struct as102_dev_t *) fe->tuner_priv;
- if (dev == NULL)
- return -EINVAL;
-
- if (mutex_lock_interruptible(&dev->bus_adap.lock))
- return -EBUSY;
-
- /* send abilis command: GET_TPS */
- ret = as10x_cmd_get_tps(&dev->bus_adap, &tps);
-
- if (ret == 0)
- as10x_fe_copy_tps_parameters(p, &tps);
-
- mutex_unlock(&dev->bus_adap.lock);
-
- return (ret < 0) ? -EINVAL : 0;
-}
-
-static int as102_fe_get_tune_settings(struct dvb_frontend *fe,
- struct dvb_frontend_tune_settings *settings) {
-
-#if 0
- dprintk(debug, "step_size = %d\n", settings->step_size);
- dprintk(debug, "max_drift = %d\n", settings->max_drift);
- dprintk(debug, "min_delay_ms = %d -> %d\n", settings->min_delay_ms,
- 1000);
-#endif
-
- 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_dev_t *dev;
- struct as10x_tune_status tstate = { 0 };
-
- dev = (struct as102_dev_t *) fe->tuner_priv;
- if (dev == NULL)
- return -ENODEV;
-
- if (mutex_lock_interruptible(&dev->bus_adap.lock))
- return -EBUSY;
-
- /* send abilis command: GET_TUNE_STATUS */
- ret = as10x_cmd_get_tune_status(&dev->bus_adap, &tstate);
- if (ret < 0) {
- dprintk(debug, "as10x_cmd_get_tune_status failed (err = %d)\n",
- ret);
- goto out;
- }
-
- dev->signal_strength = tstate.signal_strength;
- dev->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;
- }
-
- dprintk(debug, "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) {
- if (as10x_cmd_get_demod_stats(&dev->bus_adap,
- (struct as10x_demod_stats *) &dev->demod_stats) < 0) {
- memset(&dev->demod_stats, 0, sizeof(dev->demod_stats));
- dprintk(debug,
- "as10x_cmd_get_demod_stats failed (probably not tuned)\n");
- } else {
- dprintk(debug,
- "demod status: fc: 0x%08x, bad fc: 0x%08x, "
- "bytes corrected: 0x%08x , MER: 0x%04x\n",
- dev->demod_stats.frame_count,
- dev->demod_stats.bad_frame_count,
- dev->demod_stats.bytes_fixed_by_rs,
- dev->demod_stats.mer);
- }
- } else {
- memset(&dev->demod_stats, 0, sizeof(dev->demod_stats));
- }
-
-out:
- mutex_unlock(&dev->bus_adap.lock);
- 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_dev_t *dev;
-
- dev = (struct as102_dev_t *) fe->tuner_priv;
- if (dev == NULL)
- return -ENODEV;
-
- *snr = dev->demod_stats.mer;
-
- return 0;
-}
-
-static int as102_fe_read_ber(struct dvb_frontend *fe, u32 *ber)
-{
- struct as102_dev_t *dev;
-
- dev = (struct as102_dev_t *) fe->tuner_priv;
- if (dev == NULL)
- return -ENODEV;
-
- *ber = dev->ber;
-
- return 0;
-}
-
-static int as102_fe_read_signal_strength(struct dvb_frontend *fe,
- u16 *strength)
-{
- struct as102_dev_t *dev;
-
- dev = (struct as102_dev_t *) fe->tuner_priv;
- if (dev == NULL)
- return -ENODEV;
-
- *strength = (((0xffff * 400) * dev->signal_strength + 41000) * 2);
-
- return 0;
-}
-
-static int as102_fe_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
-{
- struct as102_dev_t *dev;
-
- dev = (struct as102_dev_t *) fe->tuner_priv;
- if (dev == NULL)
- return -ENODEV;
-
- if (dev->demod_stats.has_started)
- *ucblocks = dev->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_dev_t *dev;
- int ret;
-
- dev = (struct as102_dev_t *) fe->tuner_priv;
- if (dev == NULL)
- return -ENODEV;
-
- if (mutex_lock_interruptible(&dev->bus_adap.lock))
- return -EBUSY;
-
- if (acquire) {
- if (elna_enable)
- as10x_cmd_set_context(&dev->bus_adap,
- CONTEXT_LNA, dev->elna_cfg);
-
- ret = as10x_cmd_turn_on(&dev->bus_adap);
- } else {
- ret = as10x_cmd_turn_off(&dev->bus_adap);
- }
-
- mutex_unlock(&dev->bus_adap.lock);
-
- return ret;
-}
-
-static struct dvb_frontend_ops as102_fe_ops = {
- .delsys = { SYS_DVBT },
- .info = {
- .name = "Unknown AS102 device",
- .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,
-};
-
-int as102_dvb_unregister_fe(struct dvb_frontend *fe)
-{
- /* unregister frontend */
- dvb_unregister_frontend(fe);
-
- /* detach frontend */
- dvb_frontend_detach(fe);
-
- return 0;
-}
-
-int as102_dvb_register_fe(struct as102_dev_t *as102_dev,
- struct dvb_frontend *dvb_fe)
-{
- int errno;
- struct dvb_adapter *dvb_adap;
-
- if (as102_dev == NULL)
- return -EINVAL;
-
- /* extract dvb_adapter */
- dvb_adap = &as102_dev->dvb_adap;
-
- /* init frontend callback ops */
- memcpy(&dvb_fe->ops, &as102_fe_ops, sizeof(struct dvb_frontend_ops));
- strncpy(dvb_fe->ops.info.name, as102_dev->name,
- sizeof(dvb_fe->ops.info.name));
-
- /* register dvb frontend */
- errno = dvb_register_frontend(dvb_adap, dvb_fe);
- if (errno == 0)
- dvb_fe->tuner_priv = as102_dev;
-
- return errno;
-}
-
-static void as10x_fe_copy_tps_parameters(struct dtv_frontend_properties *fe_tps,
- struct as10x_tps *as10x_tps)
-{
-
- /* extract constellation */
- switch (as10x_tps->modulation) {
- case CONST_QPSK:
- fe_tps->modulation = QPSK;
- break;
- case CONST_QAM16:
- fe_tps->modulation = QAM_16;
- break;
- case CONST_QAM64:
- fe_tps->modulation = QAM_64;
- break;
- }
-
- /* extract hierarchy */
- switch (as10x_tps->hierarchy) {
- case HIER_NONE:
- fe_tps->hierarchy = HIERARCHY_NONE;
- break;
- case HIER_ALPHA_1:
- fe_tps->hierarchy = HIERARCHY_1;
- break;
- case HIER_ALPHA_2:
- fe_tps->hierarchy = HIERARCHY_2;
- break;
- case HIER_ALPHA_4:
- fe_tps->hierarchy = HIERARCHY_4;
- break;
- }
-
- /* extract code rate HP */
- switch (as10x_tps->code_rate_HP) {
- case CODE_RATE_1_2:
- fe_tps->code_rate_HP = FEC_1_2;
- break;
- case CODE_RATE_2_3:
- fe_tps->code_rate_HP = FEC_2_3;
- break;
- case CODE_RATE_3_4:
- fe_tps->code_rate_HP = FEC_3_4;
- break;
- case CODE_RATE_5_6:
- fe_tps->code_rate_HP = FEC_5_6;
- break;
- case CODE_RATE_7_8:
- fe_tps->code_rate_HP = FEC_7_8;
- break;
- }
-
- /* extract code rate LP */
- switch (as10x_tps->code_rate_LP) {
- case CODE_RATE_1_2:
- fe_tps->code_rate_LP = FEC_1_2;
- break;
- case CODE_RATE_2_3:
- fe_tps->code_rate_LP = FEC_2_3;
- break;
- case CODE_RATE_3_4:
- fe_tps->code_rate_LP = FEC_3_4;
- break;
- case CODE_RATE_5_6:
- fe_tps->code_rate_LP = FEC_5_6;
- break;
- case CODE_RATE_7_8:
- fe_tps->code_rate_LP = FEC_7_8;
- break;
- }
-
- /* extract guard interval */
- switch (as10x_tps->guard_interval) {
- case GUARD_INT_1_32:
- fe_tps->guard_interval = GUARD_INTERVAL_1_32;
- break;
- case GUARD_INT_1_16:
- fe_tps->guard_interval = GUARD_INTERVAL_1_16;
- break;
- case GUARD_INT_1_8:
- fe_tps->guard_interval = GUARD_INTERVAL_1_8;
- break;
- case GUARD_INT_1_4:
- fe_tps->guard_interval = GUARD_INTERVAL_1_4;
- break;
- }
-
- /* extract transmission mode */
- switch (as10x_tps->transmission_mode) {
- case TRANS_MODE_2K:
- fe_tps->transmission_mode = TRANSMISSION_MODE_2K;
- break;
- case TRANS_MODE_8K:
- fe_tps->transmission_mode = TRANSMISSION_MODE_8K;
- break;
- }
-}
-
-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 void as102_fe_copy_tune_parameters(struct as10x_tune_args *tune_args,
- struct dtv_frontend_properties *params)
-{
-
- /* set frequency */
- tune_args->freq = params->frequency / 1000;
-
- /* fix interleaving_mode */
- tune_args->interleaving_mode = INTLV_NATIVE;
-
- switch (params->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 (params->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 (params->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 (params->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 (params->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;
- }
-
- dprintk(debug, "tuner parameters: freq: %d bw: 0x%02x gi: 0x%02x\n",
- params->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) &&
- ((params->code_rate_LP == FEC_NONE) ||
- (params->code_rate_HP == FEC_NONE))) {
-
- if (params->code_rate_LP == FEC_NONE) {
- tune_args->hier_select = HIER_HIGH_PRIORITY;
- tune_args->code_rate =
- as102_fe_get_code_rate(params->code_rate_HP);
- }
-
- if (params->code_rate_HP == FEC_NONE) {
- tune_args->hier_select = HIER_LOW_PRIORITY;
- tune_args->code_rate =
- as102_fe_get_code_rate(params->code_rate_LP);
- }
-
- dprintk(debug,
- "\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(params->code_rate_HP);
- }
-}

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