aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/dvb/frontends/dib3000mc.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/dvb/frontends/dib3000mc.c')
-rw-r--r--drivers/media/dvb/frontends/dib3000mc.c931
1 files changed, 931 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/dib3000mc.c b/drivers/media/dvb/frontends/dib3000mc.c
new file mode 100644
index 000000000000..4a31c05eaecd
--- /dev/null
+++ b/drivers/media/dvb/frontends/dib3000mc.c
@@ -0,0 +1,931 @@
+/*
+ * Frontend driver for mobile DVB-T demodulator DiBcom 3000P/M-C
+ * DiBcom (http://www.dibcom.fr/)
+ *
+ * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
+ *
+ * based on GPL code from DiBCom, which has
+ *
+ * Copyright (C) 2004 Amaury Demol for DiBcom (ademol@dibcom.fr)
+ *
+ * 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, version 2.
+ *
+ * Acknowledgements
+ *
+ * Amaury Demol (ademol@dibcom.fr) from DiBcom for providing specs and driver
+ * sources, on which this driver (and the dvb-dibusb) are based.
+ *
+ * see Documentation/dvb/README.dibusb for more information
+ *
+ */
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include "dib3000-common.h"
+#include "dib3000mc_priv.h"
+#include "dib3000.h"
+
+/* Version information */
+#define DRIVER_VERSION "0.1"
+#define DRIVER_DESC "DiBcom 3000M-C DVB-T demodulator"
+#define DRIVER_AUTHOR "Patrick Boettcher, patrick.boettcher@desy.de"
+
+#ifdef CONFIG_DVB_DIBCOM_DEBUG
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=info,2=xfer,4=setfe,8=getfe,16=stat (|-able)).");
+#endif
+#define deb_info(args...) dprintk(0x01,args)
+#define deb_xfer(args...) dprintk(0x02,args)
+#define deb_setf(args...) dprintk(0x04,args)
+#define deb_getf(args...) dprintk(0x08,args)
+#define deb_stat(args...) dprintk(0x10,args)
+
+static int dib3000mc_tuner_pass_ctrl(struct dvb_frontend *fe, int onoff, u8 pll_addr);
+
+static int dib3000mc_set_impulse_noise(struct dib3000_state * state, int mode,
+ fe_transmit_mode_t transmission_mode, fe_bandwidth_t bandwidth)
+{
+ switch (transmission_mode) {
+ case TRANSMISSION_MODE_2K:
+ wr_foreach(dib3000mc_reg_fft,dib3000mc_fft_modes[0]);
+ break;
+ case TRANSMISSION_MODE_8K:
+ wr_foreach(dib3000mc_reg_fft,dib3000mc_fft_modes[1]);
+ break;
+ default:
+ break;
+ }
+
+ switch (bandwidth) {
+/* case BANDWIDTH_5_MHZ:
+ wr_foreach(dib3000mc_reg_impulse_noise,dib3000mc_impluse_noise[0]);
+ break; */
+ case BANDWIDTH_6_MHZ:
+ wr_foreach(dib3000mc_reg_impulse_noise,dib3000mc_impluse_noise[1]);
+ break;
+ case BANDWIDTH_7_MHZ:
+ wr_foreach(dib3000mc_reg_impulse_noise,dib3000mc_impluse_noise[2]);
+ break;
+ case BANDWIDTH_8_MHZ:
+ wr_foreach(dib3000mc_reg_impulse_noise,dib3000mc_impluse_noise[3]);
+ break;
+ default:
+ break;
+ }
+
+ switch (mode) {
+ case 0: /* no impulse */ /* fall through */
+ wr_foreach(dib3000mc_reg_imp_noise_ctl,dib3000mc_imp_noise_ctl[0]);
+ break;
+ case 1: /* new algo */
+ wr_foreach(dib3000mc_reg_imp_noise_ctl,dib3000mc_imp_noise_ctl[1]);
+ set_or(DIB3000MC_REG_IMP_NOISE_55,DIB3000MC_IMP_NEW_ALGO(0)); /* gives 1<<10 */
+ break;
+ default: /* old algo */
+ wr_foreach(dib3000mc_reg_imp_noise_ctl,dib3000mc_imp_noise_ctl[3]);
+ break;
+ }
+ return 0;
+}
+
+static int dib3000mc_set_timing(struct dib3000_state *state, int upd_offset,
+ fe_transmit_mode_t fft, fe_bandwidth_t bw)
+{
+ u16 timf_msb,timf_lsb;
+ s32 tim_offset,tim_sgn;
+ u64 comp1,comp2,comp=0;
+
+ switch (bw) {
+ case BANDWIDTH_8_MHZ: comp = DIB3000MC_CLOCK_REF*8; break;
+ case BANDWIDTH_7_MHZ: comp = DIB3000MC_CLOCK_REF*7; break;
+ case BANDWIDTH_6_MHZ: comp = DIB3000MC_CLOCK_REF*6; break;
+ default: err("unknown bandwidth (%d)",bw); break;
+ }
+ timf_msb = (comp >> 16) & 0xff;
+ timf_lsb = (comp & 0xffff);
+
+ // Update the timing offset ;
+ if (upd_offset > 0) {
+ if (!state->timing_offset_comp_done) {
+ msleep(200);
+ state->timing_offset_comp_done = 1;
+ }
+ tim_offset = rd(DIB3000MC_REG_TIMING_OFFS_MSB);
+ if ((tim_offset & 0x2000) == 0x2000)
+ tim_offset |= 0xC000;
+ if (fft == TRANSMISSION_MODE_2K)
+ tim_offset <<= 2;
+ state->timing_offset += tim_offset;
+ }
+
+ tim_offset = state->timing_offset;
+ if (tim_offset < 0) {
+ tim_sgn = 1;
+ tim_offset = -tim_offset;
+ } else
+ tim_sgn = 0;
+
+ comp1 = (u32)tim_offset * (u32)timf_lsb ;
+ comp2 = (u32)tim_offset * (u32)timf_msb ;
+ comp = ((comp1 >> 16) + comp2) >> 7;
+
+ if (tim_sgn == 0)
+ comp = (u32)(timf_msb << 16) + (u32) timf_lsb + comp;
+ else
+ comp = (u32)(timf_msb << 16) + (u32) timf_lsb - comp ;
+
+ timf_msb = (comp >> 16) & 0xff;
+ timf_lsb = comp & 0xffff;
+
+ wr(DIB3000MC_REG_TIMING_FREQ_MSB,timf_msb);
+ wr(DIB3000MC_REG_TIMING_FREQ_LSB,timf_lsb);
+ return 0;
+}
+
+static int dib3000mc_init_auto_scan(struct dib3000_state *state, fe_bandwidth_t bw, int boost)
+{
+ if (boost) {
+ wr(DIB3000MC_REG_SCAN_BOOST,DIB3000MC_SCAN_BOOST_ON);
+ } else {
+ wr(DIB3000MC_REG_SCAN_BOOST,DIB3000MC_SCAN_BOOST_OFF);
+ }
+ switch (bw) {
+ case BANDWIDTH_8_MHZ:
+ wr_foreach(dib3000mc_reg_bandwidth,dib3000mc_bandwidth_8mhz);
+ break;
+ case BANDWIDTH_7_MHZ:
+ wr_foreach(dib3000mc_reg_bandwidth,dib3000mc_bandwidth_7mhz);
+ break;
+ case BANDWIDTH_6_MHZ:
+ wr_foreach(dib3000mc_reg_bandwidth,dib3000mc_bandwidth_6mhz);
+ break;
+/* case BANDWIDTH_5_MHZ:
+ wr_foreach(dib3000mc_reg_bandwidth,dib3000mc_bandwidth_5mhz);
+ break;*/
+ case BANDWIDTH_AUTO:
+ return -EOPNOTSUPP;
+ default:
+ err("unknown bandwidth value (%d).",bw);
+ return -EINVAL;
+ }
+ if (boost) {
+ u32 timeout = (rd(DIB3000MC_REG_BW_TIMOUT_MSB) << 16) +
+ rd(DIB3000MC_REG_BW_TIMOUT_LSB);
+ timeout *= 85; timeout >>= 7;
+ wr(DIB3000MC_REG_BW_TIMOUT_MSB,(timeout >> 16) & 0xffff);
+ wr(DIB3000MC_REG_BW_TIMOUT_LSB,timeout & 0xffff);
+ }
+ return 0;
+}
+
+static int dib3000mc_set_adp_cfg(struct dib3000_state *state, fe_modulation_t con)
+{
+ switch (con) {
+ case QAM_64:
+ wr_foreach(dib3000mc_reg_adp_cfg,dib3000mc_adp_cfg[2]);
+ break;
+ case QAM_16:
+ wr_foreach(dib3000mc_reg_adp_cfg,dib3000mc_adp_cfg[1]);
+ break;
+ case QPSK:
+ wr_foreach(dib3000mc_reg_adp_cfg,dib3000mc_adp_cfg[0]);
+ break;
+ case QAM_AUTO:
+ break;
+ default:
+ warn("unkown constellation.");
+ break;
+ }
+ return 0;
+}
+
+static int dib3000mc_set_general_cfg(struct dib3000_state *state, struct dvb_frontend_parameters *fep, int *auto_val)
+{
+ struct dvb_ofdm_parameters *ofdm = &fep->u.ofdm;
+ fe_code_rate_t fe_cr = FEC_NONE;
+ u8 fft=0, guard=0, qam=0, alpha=0, sel_hp=0, cr=0, hrch=0;
+ int seq;
+
+ switch (ofdm->transmission_mode) {
+ case TRANSMISSION_MODE_2K: fft = DIB3000_TRANSMISSION_MODE_2K; break;
+ case TRANSMISSION_MODE_8K: fft = DIB3000_TRANSMISSION_MODE_8K; break;
+ case TRANSMISSION_MODE_AUTO: break;
+ default: return -EINVAL;
+ }
+ switch (ofdm->guard_interval) {
+ case GUARD_INTERVAL_1_32: guard = DIB3000_GUARD_TIME_1_32; break;
+ case GUARD_INTERVAL_1_16: guard = DIB3000_GUARD_TIME_1_16; break;
+ case GUARD_INTERVAL_1_8: guard = DIB3000_GUARD_TIME_1_8; break;
+ case GUARD_INTERVAL_1_4: guard = DIB3000_GUARD_TIME_1_4; break;
+ case GUARD_INTERVAL_AUTO: break;
+ default: return -EINVAL;
+ }
+ switch (ofdm->constellation) {
+ case QPSK: qam = DIB3000_CONSTELLATION_QPSK; break;
+ case QAM_16: qam = DIB3000_CONSTELLATION_16QAM; break;
+ case QAM_64: qam = DIB3000_CONSTELLATION_64QAM; break;
+ case QAM_AUTO: break;
+ default: return -EINVAL;
+ }
+ switch (ofdm->hierarchy_information) {
+ case HIERARCHY_NONE: /* fall through */
+ case HIERARCHY_1: alpha = DIB3000_ALPHA_1; break;
+ case HIERARCHY_2: alpha = DIB3000_ALPHA_2; break;
+ case HIERARCHY_4: alpha = DIB3000_ALPHA_4; break;
+ case HIERARCHY_AUTO: break;
+ default: return -EINVAL;
+ }
+ if (ofdm->hierarchy_information == HIERARCHY_NONE) {
+ hrch = DIB3000_HRCH_OFF;
+ sel_hp = DIB3000_SELECT_HP;
+ fe_cr = ofdm->code_rate_HP;
+ } else if (ofdm->hierarchy_information != HIERARCHY_AUTO) {
+ hrch = DIB3000_HRCH_ON;
+ sel_hp = DIB3000_SELECT_LP;
+ fe_cr = ofdm->code_rate_LP;
+ }
+ switch (fe_cr) {
+ case FEC_1_2: cr = DIB3000_FEC_1_2; break;
+ case FEC_2_3: cr = DIB3000_FEC_2_3; break;
+ case FEC_3_4: cr = DIB3000_FEC_3_4; break;
+ case FEC_5_6: cr = DIB3000_FEC_5_6; break;
+ case FEC_7_8: cr = DIB3000_FEC_7_8; break;
+ case FEC_NONE: break;
+ case FEC_AUTO: break;
+ default: return -EINVAL;
+ }
+
+ wr(DIB3000MC_REG_DEMOD_PARM,DIB3000MC_DEMOD_PARM(alpha,qam,guard,fft));
+ wr(DIB3000MC_REG_HRCH_PARM,DIB3000MC_HRCH_PARM(sel_hp,cr,hrch));
+
+ switch (fep->inversion) {
+ case INVERSION_OFF:
+ wr(DIB3000MC_REG_SET_DDS_FREQ_MSB,DIB3000MC_DDS_FREQ_MSB_INV_OFF);
+ break;
+ case INVERSION_AUTO: /* fall through */
+ case INVERSION_ON:
+ wr(DIB3000MC_REG_SET_DDS_FREQ_MSB,DIB3000MC_DDS_FREQ_MSB_INV_ON);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ seq = dib3000_seq
+ [ofdm->transmission_mode == TRANSMISSION_MODE_AUTO]
+ [ofdm->guard_interval == GUARD_INTERVAL_AUTO]
+ [fep->inversion == INVERSION_AUTO];
+
+ deb_setf("seq? %d\n", seq);
+ wr(DIB3000MC_REG_SEQ_TPS,DIB3000MC_SEQ_TPS(seq,1));
+ *auto_val = ofdm->constellation == QAM_AUTO ||
+ ofdm->hierarchy_information == HIERARCHY_AUTO ||
+ ofdm->guard_interval == GUARD_INTERVAL_AUTO ||
+ ofdm->transmission_mode == TRANSMISSION_MODE_AUTO ||
+ fe_cr == FEC_AUTO ||
+ fep->inversion == INVERSION_AUTO;
+ return 0;
+}
+
+static int dib3000mc_get_frontend(struct dvb_frontend* fe,
+ struct dvb_frontend_parameters *fep)
+{
+ struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+ struct dvb_ofdm_parameters *ofdm = &fep->u.ofdm;
+ fe_code_rate_t *cr;
+ u16 tps_val,cr_val;
+ int inv_test1,inv_test2;
+ u32 dds_val, threshold = 0x1000000;
+
+ if (!(rd(DIB3000MC_REG_LOCK_507) & DIB3000MC_LOCK_507))
+ return 0;
+
+ dds_val = (rd(DIB3000MC_REG_DDS_FREQ_MSB) << 16) + rd(DIB3000MC_REG_DDS_FREQ_LSB);
+ deb_getf("DDS_FREQ: %6x\n",dds_val);
+ if (dds_val < threshold)
+ inv_test1 = 0;
+ else if (dds_val == threshold)
+ inv_test1 = 1;
+ else
+ inv_test1 = 2;
+
+ dds_val = (rd(DIB3000MC_REG_SET_DDS_FREQ_MSB) << 16) + rd(DIB3000MC_REG_SET_DDS_FREQ_LSB);
+ deb_getf("DDS_SET_FREQ: %6x\n",dds_val);
+ if (dds_val < threshold)
+ inv_test2 = 0;
+ else if (dds_val == threshold)
+ inv_test2 = 1;
+ else
+ inv_test2 = 2;
+
+ fep->inversion =
+ ((inv_test2 == 2) && (inv_test1==1 || inv_test1==0)) ||
+ ((inv_test2 == 0) && (inv_test1==1 || inv_test1==2)) ?
+ INVERSION_ON : INVERSION_OFF;
+
+ deb_getf("inversion %d %d, %d\n", inv_test2, inv_test1, fep->inversion);
+
+ fep->frequency = state->last_tuned_freq;
+ fep->u.ofdm.bandwidth= state->last_tuned_bw;
+
+ tps_val = rd(DIB3000MC_REG_TUNING_PARM);
+
+ switch (DIB3000MC_TP_QAM(tps_val)) {
+ case DIB3000_CONSTELLATION_QPSK:
+ deb_getf("QPSK ");
+ ofdm->constellation = QPSK;
+ break;
+ case DIB3000_CONSTELLATION_16QAM:
+ deb_getf("QAM16 ");
+ ofdm->constellation = QAM_16;
+ break;
+ case DIB3000_CONSTELLATION_64QAM:
+ deb_getf("QAM64 ");
+ ofdm->constellation = QAM_64;
+ break;
+ default:
+ err("Unexpected constellation returned by TPS (%d)", tps_val);
+ break;
+ }
+
+ if (DIB3000MC_TP_HRCH(tps_val)) {
+ deb_getf("HRCH ON ");
+ cr = &ofdm->code_rate_LP;
+ ofdm->code_rate_HP = FEC_NONE;
+ switch (DIB3000MC_TP_ALPHA(tps_val)) {
+ case DIB3000_ALPHA_0:
+ deb_getf("HIERARCHY_NONE ");
+ ofdm->hierarchy_information = HIERARCHY_NONE;
+ break;
+ case DIB3000_ALPHA_1:
+ deb_getf("HIERARCHY_1 ");
+ ofdm->hierarchy_information = HIERARCHY_1;
+ break;
+ case DIB3000_ALPHA_2:
+ deb_getf("HIERARCHY_2 ");
+ ofdm->hierarchy_information = HIERARCHY_2;
+ break;
+ case DIB3000_ALPHA_4:
+ deb_getf("HIERARCHY_4 ");
+ ofdm->hierarchy_information = HIERARCHY_4;
+ break;
+ default:
+ err("Unexpected ALPHA value returned by TPS (%d)", tps_val);
+ break;
+ }
+ cr_val = DIB3000MC_TP_FEC_CR_LP(tps_val);
+ } else {
+ deb_getf("HRCH OFF ");
+ cr = &ofdm->code_rate_HP;
+ ofdm->code_rate_LP = FEC_NONE;
+ ofdm->hierarchy_information = HIERARCHY_NONE;
+ cr_val = DIB3000MC_TP_FEC_CR_HP(tps_val);
+ }
+
+ switch (cr_val) {
+ case DIB3000_FEC_1_2:
+ deb_getf("FEC_1_2 ");
+ *cr = FEC_1_2;
+ break;
+ case DIB3000_FEC_2_3:
+ deb_getf("FEC_2_3 ");
+ *cr = FEC_2_3;
+ break;
+ case DIB3000_FEC_3_4:
+ deb_getf("FEC_3_4 ");
+ *cr = FEC_3_4;
+ break;
+ case DIB3000_FEC_5_6:
+ deb_getf("FEC_5_6 ");
+ *cr = FEC_4_5;
+ break;
+ case DIB3000_FEC_7_8:
+ deb_getf("FEC_7_8 ");
+ *cr = FEC_7_8;
+ break;
+ default:
+ err("Unexpected FEC returned by TPS (%d)", tps_val);
+ break;
+ }
+
+ switch (DIB3000MC_TP_GUARD(tps_val)) {
+ case DIB3000_GUARD_TIME_1_32:
+ deb_getf("GUARD_INTERVAL_1_32 ");
+ ofdm->guard_interval = GUARD_INTERVAL_1_32;
+ break;
+ case DIB3000_GUARD_TIME_1_16:
+ deb_getf("GUARD_INTERVAL_1_16 ");
+ ofdm->guard_interval = GUARD_INTERVAL_1_16;
+ break;
+ case DIB3000_GUARD_TIME_1_8:
+ deb_getf("GUARD_INTERVAL_1_8 ");
+ ofdm->guard_interval = GUARD_INTERVAL_1_8;
+ break;
+ case DIB3000_GUARD_TIME_1_4:
+ deb_getf("GUARD_INTERVAL_1_4 ");
+ ofdm->guard_interval = GUARD_INTERVAL_1_4;
+ break;
+ default:
+ err("Unexpected Guard Time returned by TPS (%d)", tps_val);
+ break;
+ }
+
+ switch (DIB3000MC_TP_FFT(tps_val)) {
+ case DIB3000_TRANSMISSION_MODE_2K:
+ deb_getf("TRANSMISSION_MODE_2K ");
+ ofdm->transmission_mode = TRANSMISSION_MODE_2K;
+ break;
+ case DIB3000_TRANSMISSION_MODE_8K:
+ deb_getf("TRANSMISSION_MODE_8K ");
+ ofdm->transmission_mode = TRANSMISSION_MODE_8K;
+ break;
+ default:
+ err("unexpected transmission mode return by TPS (%d)", tps_val);
+ break;
+ }
+ deb_getf("\n");
+
+ return 0;
+}
+
+static int dib3000mc_set_frontend(struct dvb_frontend* fe,
+ struct dvb_frontend_parameters *fep, int tuner)
+{
+ struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+ struct dvb_ofdm_parameters *ofdm = &fep->u.ofdm;
+ int search_state,auto_val;
+ u16 val;
+
+ if (tuner) { /* initial call from dvb */
+ dib3000mc_tuner_pass_ctrl(fe,1,state->config.pll_addr(fe));
+ state->config.pll_set(fe,fep,NULL);
+ dib3000mc_tuner_pass_ctrl(fe,0,state->config.pll_addr(fe));
+
+ state->last_tuned_freq = fep->frequency;
+ // if (!scanboost) {
+ dib3000mc_set_timing(state,0,ofdm->transmission_mode,ofdm->bandwidth);
+ dib3000mc_init_auto_scan(state, ofdm->bandwidth, 0);
+ state->last_tuned_bw = ofdm->bandwidth;
+
+ wr_foreach(dib3000mc_reg_agc_bandwidth,dib3000mc_agc_bandwidth);
+ wr(DIB3000MC_REG_RESTART,DIB3000MC_RESTART_AGC);
+ wr(DIB3000MC_REG_RESTART,DIB3000MC_RESTART_OFF);
+
+ /* Default cfg isi offset adp */
+ wr_foreach(dib3000mc_reg_offset,dib3000mc_offset[0]);
+
+ wr(DIB3000MC_REG_ISI,DIB3000MC_ISI_DEFAULT | DIB3000MC_ISI_INHIBIT);
+ dib3000mc_set_adp_cfg(state,ofdm->constellation);
+ wr(DIB3000MC_REG_UNK_133,DIB3000MC_UNK_133);
+
+ wr_foreach(dib3000mc_reg_bandwidth_general,dib3000mc_bandwidth_general);
+ /* power smoothing */
+ if (ofdm->bandwidth != BANDWIDTH_8_MHZ) {
+ wr_foreach(dib3000mc_reg_bw,dib3000mc_bw[0]);
+ } else {
+ wr_foreach(dib3000mc_reg_bw,dib3000mc_bw[3]);
+ }
+ auto_val = 0;
+ dib3000mc_set_general_cfg(state,fep,&auto_val);
+ dib3000mc_set_impulse_noise(state,0,ofdm->constellation,ofdm->bandwidth);
+
+ val = rd(DIB3000MC_REG_DEMOD_PARM);
+ wr(DIB3000MC_REG_DEMOD_PARM,val|DIB3000MC_DEMOD_RST_DEMOD_ON);
+ wr(DIB3000MC_REG_DEMOD_PARM,val);
+ // }
+ msleep(70);
+
+ /* something has to be auto searched */
+ if (auto_val) {
+ int as_count=0;
+
+ deb_setf("autosearch enabled.\n");
+
+ val = rd(DIB3000MC_REG_DEMOD_PARM);
+ wr(DIB3000MC_REG_DEMOD_PARM,val | DIB3000MC_DEMOD_RST_AUTO_SRCH_ON);
+ wr(DIB3000MC_REG_DEMOD_PARM,val);
+
+ while ((search_state = dib3000_search_status(
+ rd(DIB3000MC_REG_AS_IRQ),1)) < 0 && as_count++ < 100)
+ msleep(10);
+
+ deb_info("search_state after autosearch %d after %d checks\n",search_state,as_count);
+
+ if (search_state == 1) {
+ struct dvb_frontend_parameters feps;
+ if (dib3000mc_get_frontend(fe, &feps) == 0) {
+ deb_setf("reading tuning data from frontend succeeded.\n");
+ return dib3000mc_set_frontend(fe, &feps, 0);
+ }
+ }
+ } else {
+ dib3000mc_set_impulse_noise(state,0,ofdm->transmission_mode,ofdm->bandwidth);
+ wr(DIB3000MC_REG_ISI,DIB3000MC_ISI_DEFAULT|DIB3000MC_ISI_ACTIVATE);
+ dib3000mc_set_adp_cfg(state,ofdm->constellation);
+
+ /* set_offset_cfg */
+ wr_foreach(dib3000mc_reg_offset,
+ dib3000mc_offset[(ofdm->transmission_mode == TRANSMISSION_MODE_8K)+1]);
+ }
+ } else { /* second call, after autosearch (fka: set_WithKnownParams) */
+// dib3000mc_set_timing(state,1,ofdm->transmission_mode,ofdm->bandwidth);
+
+ auto_val = 0;
+ dib3000mc_set_general_cfg(state,fep,&auto_val);
+ if (auto_val)
+ deb_info("auto_val is true, even though an auto search was already performed.\n");
+
+ dib3000mc_set_impulse_noise(state,0,ofdm->constellation,ofdm->bandwidth);
+
+ val = rd(DIB3000MC_REG_DEMOD_PARM);
+ wr(DIB3000MC_REG_DEMOD_PARM,val | DIB3000MC_DEMOD_RST_AUTO_SRCH_ON);
+ wr(DIB3000MC_REG_DEMOD_PARM,val);
+
+ msleep(30);
+
+ wr(DIB3000MC_REG_ISI,DIB3000MC_ISI_DEFAULT|DIB3000MC_ISI_ACTIVATE);
+ dib3000mc_set_adp_cfg(state,ofdm->constellation);
+ wr_foreach(dib3000mc_reg_offset,
+ dib3000mc_offset[(ofdm->transmission_mode == TRANSMISSION_MODE_8K)+1]);
+
+
+ }
+ return 0;
+}
+
+static int dib3000mc_fe_init(struct dvb_frontend* fe, int mobile_mode)
+{
+ struct dib3000_state *state;
+
+ deb_info("init start\n");
+
+ state = fe->demodulator_priv;
+ state->timing_offset = 0;
+ state->timing_offset_comp_done = 0;
+
+ wr(DIB3000MC_REG_RESTART,DIB3000MC_RESTART_CONFIG);
+ wr(DIB3000MC_REG_RESTART,DIB3000MC_RESTART_OFF);
+ wr(DIB3000MC_REG_CLK_CFG_1,DIB3000MC_CLK_CFG_1_POWER_UP);
+ wr(DIB3000MC_REG_CLK_CFG_2,DIB3000MC_CLK_CFG_2_PUP_MOBILE);
+ wr(DIB3000MC_REG_CLK_CFG_3,DIB3000MC_CLK_CFG_3_POWER_UP);
+ wr(DIB3000MC_REG_CLK_CFG_7,DIB3000MC_CLK_CFG_7_INIT);
+
+ wr(DIB3000MC_REG_RST_UNC,DIB3000MC_RST_UNC_OFF);
+ wr(DIB3000MC_REG_UNK_19,DIB3000MC_UNK_19);
+
+ wr(33,5);
+ wr(36,81);
+ wr(DIB3000MC_REG_UNK_88,DIB3000MC_UNK_88);
+
+ wr(DIB3000MC_REG_UNK_99,DIB3000MC_UNK_99);
+ wr(DIB3000MC_REG_UNK_111,DIB3000MC_UNK_111_PH_N_MODE_0); /* phase noise algo off */
+
+ /* mobile mode - portable reception */
+ wr_foreach(dib3000mc_reg_mobile_mode,dib3000mc_mobile_mode[1]);
+
+/* TUNER_PANASONIC_ENV57H12D5: */
+ wr_foreach(dib3000mc_reg_agc_bandwidth,dib3000mc_agc_bandwidth);
+ wr_foreach(dib3000mc_reg_agc_bandwidth_general,dib3000mc_agc_bandwidth_general);
+ wr_foreach(dib3000mc_reg_agc,dib3000mc_agc_tuner[1]);
+
+ wr(DIB3000MC_REG_UNK_110,DIB3000MC_UNK_110);
+ wr(26,0x6680);
+ wr(DIB3000MC_REG_UNK_1,DIB3000MC_UNK_1);
+ wr(DIB3000MC_REG_UNK_2,DIB3000MC_UNK_2);
+ wr(DIB3000MC_REG_UNK_3,DIB3000MC_UNK_3);
+ wr(DIB3000MC_REG_SEQ_TPS,DIB3000MC_SEQ_TPS_DEFAULT);
+
+ wr_foreach(dib3000mc_reg_bandwidth,dib3000mc_bandwidth_8mhz);
+ wr_foreach(dib3000mc_reg_bandwidth_general,dib3000mc_bandwidth_general);
+
+ wr(DIB3000MC_REG_UNK_4,DIB3000MC_UNK_4);
+
+ wr(DIB3000MC_REG_SET_DDS_FREQ_MSB,DIB3000MC_DDS_FREQ_MSB_INV_OFF);
+ wr(DIB3000MC_REG_SET_DDS_FREQ_LSB,DIB3000MC_DDS_FREQ_LSB);
+
+ dib3000mc_set_timing(state,0,TRANSMISSION_MODE_8K,BANDWIDTH_8_MHZ);
+// wr_foreach(dib3000mc_reg_timing_freq,dib3000mc_timing_freq[3]);
+
+ wr(DIB3000MC_REG_UNK_120,DIB3000MC_UNK_120);
+ wr(DIB3000MC_REG_UNK_134,DIB3000MC_UNK_134);
+ wr(DIB3000MC_REG_FEC_CFG,DIB3000MC_FEC_CFG);
+
+ wr(DIB3000MC_REG_DIVERSITY3,DIB3000MC_DIVERSITY3_IN_OFF);
+
+ dib3000mc_set_impulse_noise(state,0,TRANSMISSION_MODE_8K,BANDWIDTH_8_MHZ);
+
+/* output mode control, just the MPEG2_SLAVE */
+// set_or(DIB3000MC_REG_OUTMODE,DIB3000MC_OM_SLAVE);
+ wr(DIB3000MC_REG_OUTMODE,DIB3000MC_OM_SLAVE);
+ wr(DIB3000MC_REG_SMO_MODE,DIB3000MC_SMO_MODE_SLAVE);
+ wr(DIB3000MC_REG_FIFO_THRESHOLD,DIB3000MC_FIFO_THRESHOLD_SLAVE);
+ wr(DIB3000MC_REG_ELEC_OUT,DIB3000MC_ELEC_OUT_SLAVE);
+
+/* MPEG2_PARALLEL_CONTINUOUS_CLOCK
+ wr(DIB3000MC_REG_OUTMODE,
+ DIB3000MC_SET_OUTMODE(DIB3000MC_OM_PAR_CONT_CLK,
+ rd(DIB3000MC_REG_OUTMODE)));
+
+ wr(DIB3000MC_REG_SMO_MODE,
+ DIB3000MC_SMO_MODE_DEFAULT |
+ DIB3000MC_SMO_MODE_188);
+
+ wr(DIB3000MC_REG_FIFO_THRESHOLD,DIB3000MC_FIFO_THRESHOLD_DEFAULT);
+ wr(DIB3000MC_REG_ELEC_OUT,DIB3000MC_ELEC_OUT_DIV_OUT_ON);
+*/
+
+/* diversity */
+ wr(DIB3000MC_REG_DIVERSITY1,DIB3000MC_DIVERSITY1_DEFAULT);
+ wr(DIB3000MC_REG_DIVERSITY2,DIB3000MC_DIVERSITY2_DEFAULT);
+
+ set_and(DIB3000MC_REG_DIVERSITY3,DIB3000MC_DIVERSITY3_IN_OFF);
+
+ set_or(DIB3000MC_REG_CLK_CFG_7,DIB3000MC_CLK_CFG_7_DIV_IN_OFF);
+
+/* if (state->config->pll_init) {
+ dib3000mc_tuner_pass_ctrl(fe,1,state->config.pll_addr(fe));
+ state->config->pll_init(fe,NULL);
+ dib3000mc_tuner_pass_ctrl(fe,0,state->config.pll_addr(fe));
+ }*/
+ deb_info("init end\n");
+ return 0;
+}
+static int dib3000mc_read_status(struct dvb_frontend* fe, fe_status_t *stat)
+{
+ struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+ u16 lock = rd(DIB3000MC_REG_LOCKING);
+
+ *stat = 0;
+ if (DIB3000MC_AGC_LOCK(lock))
+ *stat |= FE_HAS_SIGNAL;
+ if (DIB3000MC_CARRIER_LOCK(lock))
+ *stat |= FE_HAS_CARRIER;
+ if (DIB3000MC_TPS_LOCK(lock))
+ *stat |= FE_HAS_VITERBI;
+ if (DIB3000MC_MPEG_SYNC_LOCK(lock))
+ *stat |= (FE_HAS_SYNC | FE_HAS_LOCK);
+
+ deb_stat("actual status is %2x fifo_level: %x,244: %x, 206: %x, 207: %x, 1040: %x\n",*stat,rd(510),rd(244),rd(206),rd(207),rd(1040));
+
+ return 0;
+}
+
+static int dib3000mc_read_ber(struct dvb_frontend* fe, u32 *ber)
+{
+ struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+ *ber = ((rd(DIB3000MC_REG_BER_MSB) << 16) | rd(DIB3000MC_REG_BER_LSB));
+ return 0;
+}
+
+static int dib3000mc_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
+{
+ struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+
+ *unc = rd(DIB3000MC_REG_PACKET_ERROR_COUNT);
+ return 0;
+}
+
+/* see dib3000mb.c for calculation comments */
+static int dib3000mc_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
+{
+ struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+ u16 val = rd(DIB3000MC_REG_SIGNAL_NOISE_LSB);
+ *strength = (((val >> 6) & 0xff) << 8) + (val & 0x3f);
+
+ deb_stat("signal: mantisse = %d, exponent = %d\n",(*strength >> 8) & 0xff, *strength & 0xff);
+ return 0;
+}
+
+/* see dib3000mb.c for calculation comments */
+static int dib3000mc_read_snr(struct dvb_frontend* fe, u16 *snr)
+{
+ struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+ u16 val = rd(DIB3000MC_REG_SIGNAL_NOISE_LSB),
+ val2 = rd(DIB3000MC_REG_SIGNAL_NOISE_MSB);
+ u16 sig,noise;
+
+ sig = (((val >> 6) & 0xff) << 8) + (val & 0x3f);
+ noise = (((val >> 4) & 0xff) << 8) + ((val & 0xf) << 2) + ((val2 >> 14) & 0x3);
+ if (noise == 0)
+ *snr = 0xffff;
+ else
+ *snr = (u16) sig/noise;
+
+ deb_stat("signal: mantisse = %d, exponent = %d\n",(sig >> 8) & 0xff, sig & 0xff);
+ deb_stat("noise: mantisse = %d, exponent = %d\n",(noise >> 8) & 0xff, noise & 0xff);
+ deb_stat("snr: %d\n",*snr);
+ return 0;
+}
+
+static int dib3000mc_sleep(struct dvb_frontend* fe)
+{
+ struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+
+ set_or(DIB3000MC_REG_CLK_CFG_7,DIB3000MC_CLK_CFG_7_PWR_DOWN);
+ wr(DIB3000MC_REG_CLK_CFG_1,DIB3000MC_CLK_CFG_1_POWER_DOWN);
+ wr(DIB3000MC_REG_CLK_CFG_2,DIB3000MC_CLK_CFG_2_POWER_DOWN);
+ wr(DIB3000MC_REG_CLK_CFG_3,DIB3000MC_CLK_CFG_3_POWER_DOWN);
+ return 0;
+}
+
+static int dib3000mc_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
+{
+ tune->min_delay_ms = 2000;
+ tune->step_size = 166667;
+ tune->max_drift = 166667 * 2;
+
+ return 0;
+}
+
+static int dib3000mc_fe_init_nonmobile(struct dvb_frontend* fe)
+{
+ return dib3000mc_fe_init(fe, 0);
+}
+
+static int dib3000mc_set_frontend_and_tuner(struct dvb_frontend* fe, struct dvb_frontend_parameters *fep)
+{
+ return dib3000mc_set_frontend(fe, fep, 1);
+}
+
+static void dib3000mc_release(struct dvb_frontend* fe)
+{
+ struct dib3000_state *state = (struct dib3000_state *) fe->demodulator_priv;
+ kfree(state);
+}
+
+/* pid filter and transfer stuff */
+static int dib3000mc_pid_control(struct dvb_frontend *fe,int index, int pid,int onoff)
+{
+ struct dib3000_state *state = fe->demodulator_priv;
+ pid = (onoff ? pid | DIB3000_ACTIVATE_PID_FILTERING : 0);
+ wr(index+DIB3000MC_REG_FIRST_PID,pid);
+ return 0;
+}
+
+static int dib3000mc_fifo_control(struct dvb_frontend *fe, int onoff)
+{
+ struct dib3000_state *state = (struct dib3000_state*) fe->demodulator_priv;
+ u16 tmp = rd(DIB3000MC_REG_SMO_MODE);
+
+ deb_xfer("%s fifo\n",onoff ? "enabling" : "disabling");
+
+ if (onoff) {
+ deb_xfer("%d %x\n",tmp & DIB3000MC_SMO_MODE_FIFO_UNFLUSH,tmp & DIB3000MC_SMO_MODE_FIFO_UNFLUSH);
+ wr(DIB3000MC_REG_SMO_MODE,tmp & DIB3000MC_SMO_MODE_FIFO_UNFLUSH);
+ } else {
+ deb_xfer("%d %x\n",tmp | DIB3000MC_SMO_MODE_FIFO_FLUSH,tmp | DIB3000MC_SMO_MODE_FIFO_FLUSH);
+ wr(DIB3000MC_REG_SMO_MODE,tmp | DIB3000MC_SMO_MODE_FIFO_FLUSH);
+ }
+ return 0;
+}
+
+static int dib3000mc_pid_parse(struct dvb_frontend *fe, int onoff)
+{
+ struct dib3000_state *state = fe->demodulator_priv;
+ u16 tmp = rd(DIB3000MC_REG_SMO_MODE);
+
+ deb_xfer("%s pid parsing\n",onoff ? "enabling" : "disabling");
+
+ if (onoff) {
+ wr(DIB3000MC_REG_SMO_MODE,tmp | DIB3000MC_SMO_MODE_PID_PARSE);
+ } else {
+ wr(DIB3000MC_REG_SMO_MODE,tmp & DIB3000MC_SMO_MODE_NO_PID_PARSE);
+ }
+ return 0;
+}
+
+static int dib3000mc_tuner_pass_ctrl(struct dvb_frontend *fe, int onoff, u8 pll_addr)
+{
+ struct dib3000_state *state = (struct dib3000_state*) fe->demodulator_priv;
+ if (onoff) {
+ wr(DIB3000MC_REG_TUNER, DIB3000_TUNER_WRITE_ENABLE(pll_addr));
+ } else {
+ wr(DIB3000MC_REG_TUNER, DIB3000_TUNER_WRITE_DISABLE(pll_addr));
+ }
+ return 0;
+}
+
+static int dib3000mc_demod_init(struct dib3000_state *state)
+{
+ u16 default_addr = 0x0a;
+ /* first init */
+ if (state->config.demod_address != default_addr) {
+ deb_info("initializing the demod the first time. Setting demod addr to 0x%x\n",default_addr);
+ wr(DIB3000MC_REG_ELEC_OUT,DIB3000MC_ELEC_OUT_DIV_OUT_ON);
+ wr(DIB3000MC_REG_OUTMODE,DIB3000MC_OM_PAR_CONT_CLK);
+
+ wr(DIB3000MC_REG_RST_I2C_ADDR,
+ DIB3000MC_DEMOD_ADDR(default_addr) |
+ DIB3000MC_DEMOD_ADDR_ON);
+
+ state->config.demod_address = default_addr;
+
+ wr(DIB3000MC_REG_RST_I2C_ADDR,
+ DIB3000MC_DEMOD_ADDR(default_addr));
+ } else
+ deb_info("demod is already initialized. Demod addr: 0x%x\n",state->config.demod_address);
+ return 0;
+}
+
+
+static struct dvb_frontend_ops dib3000mc_ops;
+
+struct dvb_frontend* dib3000mc_attach(const struct dib3000_config* config,
+ struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops)
+{
+ struct dib3000_state* state = NULL;
+ u16 devid;
+
+ /* allocate memory for the internal state */
+ state = (struct dib3000_state*) kmalloc(sizeof(struct dib3000_state), GFP_KERNEL);
+ if (state == NULL)
+ goto error;
+ memset(state,0,sizeof(struct dib3000_state));
+
+ /* setup the state */
+ state->i2c = i2c;
+ memcpy(&state->config,config,sizeof(struct dib3000_config));
+ memcpy(&state->ops, &dib3000mc_ops, sizeof(struct dvb_frontend_ops));
+
+ /* check for the correct demod */
+ if (rd(DIB3000_REG_MANUFACTOR_ID) != DIB3000_I2C_ID_DIBCOM)
+ goto error;
+
+ devid = rd(DIB3000_REG_DEVICE_ID);
+ if (devid != DIB3000MC_DEVICE_ID && devid != DIB3000P_DEVICE_ID)
+ goto error;
+
+ switch (devid) {
+ case DIB3000MC_DEVICE_ID:
+ info("Found a DiBcom 3000M-C, interesting...");
+ break;
+ case DIB3000P_DEVICE_ID:
+ info("Found a DiBcom 3000P.");
+ break;
+ }
+
+ /* create dvb_frontend */
+ state->frontend.ops = &state->ops;
+ state->frontend.demodulator_priv = state;
+
+ /* set the xfer operations */
+ xfer_ops->pid_parse = dib3000mc_pid_parse;
+ xfer_ops->fifo_ctrl = dib3000mc_fifo_control;
+ xfer_ops->pid_ctrl = dib3000mc_pid_control;
+ xfer_ops->tuner_pass_ctrl = dib3000mc_tuner_pass_ctrl;
+
+ dib3000mc_demod_init(state);
+
+ return &state->frontend;
+
+error:
+ kfree(state);
+ return NULL;
+}
+
+static struct dvb_frontend_ops dib3000mc_ops = {
+
+ .info = {
+ .name = "DiBcom 3000P/M-C DVB-T",
+ .type = FE_OFDM,
+ .frequency_min = 44250000,
+ .frequency_max = 867250000,
+ .frequency_stepsize = 62500,
+ .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_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
+ FE_CAN_TRANSMISSION_MODE_AUTO |
+ FE_CAN_GUARD_INTERVAL_AUTO |
+ FE_CAN_RECOVER |
+ FE_CAN_HIERARCHY_AUTO,
+ },
+
+ .release = dib3000mc_release,
+
+ .init = dib3000mc_fe_init_nonmobile,
+ .sleep = dib3000mc_sleep,
+
+ .set_frontend = dib3000mc_set_frontend_and_tuner,
+ .get_frontend = dib3000mc_get_frontend,
+ .get_tune_settings = dib3000mc_fe_get_tune_settings,
+
+ .read_status = dib3000mc_read_status,
+ .read_ber = dib3000mc_read_ber,
+ .read_signal_strength = dib3000mc_read_signal_strength,
+ .read_snr = dib3000mc_read_snr,
+ .read_ucblocks = dib3000mc_read_unc_blocks,
+};
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL(dib3000mc_attach);
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 18:32:50 +0000