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path: root/drivers/media/dvb/frontends/dib3000mb.c
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Diffstat (limited to 'drivers/media/dvb/frontends/dib3000mb.c')
-rw-r--r--drivers/media/dvb/frontends/dib3000mb.c829
1 files changed, 829 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/dib3000mb.c b/drivers/media/dvb/frontends/dib3000mb.c
new file mode 100644
index 00000000..af91e0c9
--- /dev/null
+++ b/drivers/media/dvb/frontends/dib3000mb.c
@@ -0,0 +1,829 @@
+/*
+ * Frontend driver for mobile DVB-T demodulator DiBcom 3000M-B
+ * 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.dvb-usb for more information
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
+#include "dvb_frontend.h"
+
+#include "dib3000.h"
+#include "dib3000mb_priv.h"
+
+/* Version information */
+#define DRIVER_VERSION "0.1"
+#define DRIVER_DESC "DiBcom 3000M-B DVB-T demodulator"
+#define DRIVER_AUTHOR "Patrick Boettcher, patrick.boettcher@desy.de"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=info,2=xfer,4=setfe,8=getfe (|-able)).");
+
+#define deb_info(args...) dprintk(0x01,args)
+#define deb_i2c(args...) dprintk(0x02,args)
+#define deb_srch(args...) dprintk(0x04,args)
+#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)
+
+static int dib3000_read_reg(struct dib3000_state *state, u16 reg)
+{
+ u8 wb[] = { ((reg >> 8) | 0x80) & 0xff, reg & 0xff };
+ u8 rb[2];
+ struct i2c_msg msg[] = {
+ { .addr = state->config.demod_address, .flags = 0, .buf = wb, .len = 2 },
+ { .addr = state->config.demod_address, .flags = I2C_M_RD, .buf = rb, .len = 2 },
+ };
+
+ if (i2c_transfer(state->i2c, msg, 2) != 2)
+ deb_i2c("i2c read error\n");
+
+ deb_i2c("reading i2c bus (reg: %5d 0x%04x, val: %5d 0x%04x)\n",reg,reg,
+ (rb[0] << 8) | rb[1],(rb[0] << 8) | rb[1]);
+
+ return (rb[0] << 8) | rb[1];
+}
+
+static int dib3000_write_reg(struct dib3000_state *state, u16 reg, u16 val)
+{
+ u8 b[] = {
+ (reg >> 8) & 0xff, reg & 0xff,
+ (val >> 8) & 0xff, val & 0xff,
+ };
+ struct i2c_msg msg[] = {
+ { .addr = state->config.demod_address, .flags = 0, .buf = b, .len = 4 }
+ };
+ deb_i2c("writing i2c bus (reg: %5d 0x%04x, val: %5d 0x%04x)\n",reg,reg,val,val);
+
+ return i2c_transfer(state->i2c,msg, 1) != 1 ? -EREMOTEIO : 0;
+}
+
+static int dib3000_search_status(u16 irq,u16 lock)
+{
+ if (irq & 0x02) {
+ if (lock & 0x01) {
+ deb_srch("auto search succeeded\n");
+ return 1; // auto search succeeded
+ } else {
+ deb_srch("auto search not successful\n");
+ return 0; // auto search failed
+ }
+ } else if (irq & 0x01) {
+ deb_srch("auto search failed\n");
+ return 0; // auto search failed
+ }
+ return -1; // try again
+}
+
+/* for auto search */
+static u16 dib3000_seq[2][2][2] = /* fft,gua, inv */
+ { /* fft */
+ { /* gua */
+ { 0, 1 }, /* 0 0 { 0,1 } */
+ { 3, 9 }, /* 0 1 { 0,1 } */
+ },
+ {
+ { 2, 5 }, /* 1 0 { 0,1 } */
+ { 6, 11 }, /* 1 1 { 0,1 } */
+ }
+ };
+
+static int dib3000mb_get_frontend(struct dvb_frontend* fe);
+
+static int dib3000mb_set_frontend(struct dvb_frontend *fe, int tuner)
+{
+ struct dib3000_state* state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ fe_code_rate_t fe_cr = FEC_NONE;
+ int search_state, seq;
+
+ if (tuner && fe->ops.tuner_ops.set_params) {
+ fe->ops.tuner_ops.set_params(fe);
+ if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
+
+ deb_setf("bandwidth: ");
+ switch (c->bandwidth_hz) {
+ case 8000000:
+ deb_setf("8 MHz\n");
+ wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[2]);
+ wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_8mhz);
+ break;
+ case 7000000:
+ deb_setf("7 MHz\n");
+ wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[1]);
+ wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_7mhz);
+ break;
+ case 6000000:
+ deb_setf("6 MHz\n");
+ wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[0]);
+ wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_6mhz);
+ break;
+ case 0:
+ return -EOPNOTSUPP;
+ default:
+ err("unknown bandwidth value.");
+ return -EINVAL;
+ }
+ }
+ wr(DIB3000MB_REG_LOCK1_MASK, DIB3000MB_LOCK1_SEARCH_4);
+
+ deb_setf("transmission mode: ");
+ switch (c->transmission_mode) {
+ case TRANSMISSION_MODE_2K:
+ deb_setf("2k\n");
+ wr(DIB3000MB_REG_FFT, DIB3000_TRANSMISSION_MODE_2K);
+ break;
+ case TRANSMISSION_MODE_8K:
+ deb_setf("8k\n");
+ wr(DIB3000MB_REG_FFT, DIB3000_TRANSMISSION_MODE_8K);
+ break;
+ case TRANSMISSION_MODE_AUTO:
+ deb_setf("auto\n");
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ deb_setf("guard: ");
+ switch (c->guard_interval) {
+ case GUARD_INTERVAL_1_32:
+ deb_setf("1_32\n");
+ wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_32);
+ break;
+ case GUARD_INTERVAL_1_16:
+ deb_setf("1_16\n");
+ wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_16);
+ break;
+ case GUARD_INTERVAL_1_8:
+ deb_setf("1_8\n");
+ wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_8);
+ break;
+ case GUARD_INTERVAL_1_4:
+ deb_setf("1_4\n");
+ wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_4);
+ break;
+ case GUARD_INTERVAL_AUTO:
+ deb_setf("auto\n");
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ deb_setf("inversion: ");
+ switch (c->inversion) {
+ case INVERSION_OFF:
+ deb_setf("off\n");
+ wr(DIB3000MB_REG_DDS_INV, DIB3000_DDS_INVERSION_OFF);
+ break;
+ case INVERSION_AUTO:
+ deb_setf("auto ");
+ break;
+ case INVERSION_ON:
+ deb_setf("on\n");
+ wr(DIB3000MB_REG_DDS_INV, DIB3000_DDS_INVERSION_ON);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ deb_setf("modulation: ");
+ switch (c->modulation) {
+ case QPSK:
+ deb_setf("qpsk\n");
+ wr(DIB3000MB_REG_QAM, DIB3000_CONSTELLATION_QPSK);
+ break;
+ case QAM_16:
+ deb_setf("qam16\n");
+ wr(DIB3000MB_REG_QAM, DIB3000_CONSTELLATION_16QAM);
+ break;
+ case QAM_64:
+ deb_setf("qam64\n");
+ wr(DIB3000MB_REG_QAM, DIB3000_CONSTELLATION_64QAM);
+ break;
+ case QAM_AUTO:
+ break;
+ default:
+ return -EINVAL;
+ }
+ deb_setf("hierarchy: ");
+ switch (c->hierarchy) {
+ case HIERARCHY_NONE:
+ deb_setf("none ");
+ /* fall through */
+ case HIERARCHY_1:
+ deb_setf("alpha=1\n");
+ wr(DIB3000MB_REG_VIT_ALPHA, DIB3000_ALPHA_1);
+ break;
+ case HIERARCHY_2:
+ deb_setf("alpha=2\n");
+ wr(DIB3000MB_REG_VIT_ALPHA, DIB3000_ALPHA_2);
+ break;
+ case HIERARCHY_4:
+ deb_setf("alpha=4\n");
+ wr(DIB3000MB_REG_VIT_ALPHA, DIB3000_ALPHA_4);
+ break;
+ case HIERARCHY_AUTO:
+ deb_setf("alpha=auto\n");
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ deb_setf("hierarchy: ");
+ if (c->hierarchy == HIERARCHY_NONE) {
+ deb_setf("none\n");
+ wr(DIB3000MB_REG_VIT_HRCH, DIB3000_HRCH_OFF);
+ wr(DIB3000MB_REG_VIT_HP, DIB3000_SELECT_HP);
+ fe_cr = c->code_rate_HP;
+ } else if (c->hierarchy != HIERARCHY_AUTO) {
+ deb_setf("on\n");
+ wr(DIB3000MB_REG_VIT_HRCH, DIB3000_HRCH_ON);
+ wr(DIB3000MB_REG_VIT_HP, DIB3000_SELECT_LP);
+ fe_cr = c->code_rate_LP;
+ }
+ deb_setf("fec: ");
+ switch (fe_cr) {
+ case FEC_1_2:
+ deb_setf("1_2\n");
+ wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_1_2);
+ break;
+ case FEC_2_3:
+ deb_setf("2_3\n");
+ wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_2_3);
+ break;
+ case FEC_3_4:
+ deb_setf("3_4\n");
+ wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_3_4);
+ break;
+ case FEC_5_6:
+ deb_setf("5_6\n");
+ wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_5_6);
+ break;
+ case FEC_7_8:
+ deb_setf("7_8\n");
+ wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_7_8);
+ break;
+ case FEC_NONE:
+ deb_setf("none ");
+ break;
+ case FEC_AUTO:
+ deb_setf("auto\n");
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ seq = dib3000_seq
+ [c->transmission_mode == TRANSMISSION_MODE_AUTO]
+ [c->guard_interval == GUARD_INTERVAL_AUTO]
+ [c->inversion == INVERSION_AUTO];
+
+ deb_setf("seq? %d\n", seq);
+
+ wr(DIB3000MB_REG_SEQ, seq);
+
+ wr(DIB3000MB_REG_ISI, seq ? DIB3000MB_ISI_INHIBIT : DIB3000MB_ISI_ACTIVATE);
+
+ if (c->transmission_mode == TRANSMISSION_MODE_2K) {
+ if (c->guard_interval == GUARD_INTERVAL_1_8) {
+ wr(DIB3000MB_REG_SYNC_IMPROVEMENT, DIB3000MB_SYNC_IMPROVE_2K_1_8);
+ } else {
+ wr(DIB3000MB_REG_SYNC_IMPROVEMENT, DIB3000MB_SYNC_IMPROVE_DEFAULT);
+ }
+
+ wr(DIB3000MB_REG_UNK_121, DIB3000MB_UNK_121_2K);
+ } else {
+ wr(DIB3000MB_REG_UNK_121, DIB3000MB_UNK_121_DEFAULT);
+ }
+
+ wr(DIB3000MB_REG_MOBILE_ALGO, DIB3000MB_MOBILE_ALGO_OFF);
+ wr(DIB3000MB_REG_MOBILE_MODE_QAM, DIB3000MB_MOBILE_MODE_QAM_OFF);
+ wr(DIB3000MB_REG_MOBILE_MODE, DIB3000MB_MOBILE_MODE_OFF);
+
+ wr_foreach(dib3000mb_reg_agc_bandwidth, dib3000mb_agc_bandwidth_high);
+
+ wr(DIB3000MB_REG_ISI, DIB3000MB_ISI_ACTIVATE);
+
+ wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_AGC + DIB3000MB_RESTART_CTRL);
+ wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_OFF);
+
+ /* wait for AGC lock */
+ msleep(70);
+
+ wr_foreach(dib3000mb_reg_agc_bandwidth, dib3000mb_agc_bandwidth_low);
+
+ /* something has to be auto searched */
+ if (c->modulation == QAM_AUTO ||
+ c->hierarchy == HIERARCHY_AUTO ||
+ fe_cr == FEC_AUTO ||
+ c->inversion == INVERSION_AUTO) {
+ int as_count=0;
+
+ deb_setf("autosearch enabled.\n");
+
+ wr(DIB3000MB_REG_ISI, DIB3000MB_ISI_INHIBIT);
+
+ wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_AUTO_SEARCH);
+ wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_OFF);
+
+ while ((search_state =
+ dib3000_search_status(
+ rd(DIB3000MB_REG_AS_IRQ_PENDING),
+ rd(DIB3000MB_REG_LOCK2_VALUE))) < 0 && as_count++ < 100)
+ msleep(1);
+
+ deb_setf("search_state after autosearch %d after %d checks\n",search_state,as_count);
+
+ if (search_state == 1) {
+ if (dib3000mb_get_frontend(fe) == 0) {
+ deb_setf("reading tuning data from frontend succeeded.\n");
+ return dib3000mb_set_frontend(fe, 0);
+ }
+ }
+
+ } else {
+ wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_CTRL);
+ wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_OFF);
+ }
+
+ return 0;
+}
+
+static int dib3000mb_fe_init(struct dvb_frontend* fe, int mobile_mode)
+{
+ struct dib3000_state* state = fe->demodulator_priv;
+
+ deb_info("dib3000mb is getting up.\n");
+ wr(DIB3000MB_REG_POWER_CONTROL, DIB3000MB_POWER_UP);
+
+ wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_AGC);
+
+ wr(DIB3000MB_REG_RESET_DEVICE, DIB3000MB_RESET_DEVICE);
+ wr(DIB3000MB_REG_RESET_DEVICE, DIB3000MB_RESET_DEVICE_RST);
+
+ wr(DIB3000MB_REG_CLOCK, DIB3000MB_CLOCK_DEFAULT);
+
+ wr(DIB3000MB_REG_ELECT_OUT_MODE, DIB3000MB_ELECT_OUT_MODE_ON);
+
+ wr(DIB3000MB_REG_DDS_FREQ_MSB, DIB3000MB_DDS_FREQ_MSB);
+ wr(DIB3000MB_REG_DDS_FREQ_LSB, DIB3000MB_DDS_FREQ_LSB);
+
+ wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[2]);
+
+ wr_foreach(dib3000mb_reg_impulse_noise,
+ dib3000mb_impulse_noise_values[DIB3000MB_IMPNOISE_OFF]);
+
+ wr_foreach(dib3000mb_reg_agc_gain, dib3000mb_default_agc_gain);
+
+ wr(DIB3000MB_REG_PHASE_NOISE, DIB3000MB_PHASE_NOISE_DEFAULT);
+
+ wr_foreach(dib3000mb_reg_phase_noise, dib3000mb_default_noise_phase);
+
+ wr_foreach(dib3000mb_reg_lock_duration, dib3000mb_default_lock_duration);
+
+ wr_foreach(dib3000mb_reg_agc_bandwidth, dib3000mb_agc_bandwidth_low);
+
+ wr(DIB3000MB_REG_LOCK0_MASK, DIB3000MB_LOCK0_DEFAULT);
+ wr(DIB3000MB_REG_LOCK1_MASK, DIB3000MB_LOCK1_SEARCH_4);
+ wr(DIB3000MB_REG_LOCK2_MASK, DIB3000MB_LOCK2_DEFAULT);
+ wr(DIB3000MB_REG_SEQ, dib3000_seq[1][1][1]);
+
+ wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_8mhz);
+
+ wr(DIB3000MB_REG_UNK_68, DIB3000MB_UNK_68);
+ wr(DIB3000MB_REG_UNK_69, DIB3000MB_UNK_69);
+ wr(DIB3000MB_REG_UNK_71, DIB3000MB_UNK_71);
+ wr(DIB3000MB_REG_UNK_77, DIB3000MB_UNK_77);
+ wr(DIB3000MB_REG_UNK_78, DIB3000MB_UNK_78);
+ wr(DIB3000MB_REG_ISI, DIB3000MB_ISI_INHIBIT);
+ wr(DIB3000MB_REG_UNK_92, DIB3000MB_UNK_92);
+ wr(DIB3000MB_REG_UNK_96, DIB3000MB_UNK_96);
+ wr(DIB3000MB_REG_UNK_97, DIB3000MB_UNK_97);
+ wr(DIB3000MB_REG_UNK_106, DIB3000MB_UNK_106);
+ wr(DIB3000MB_REG_UNK_107, DIB3000MB_UNK_107);
+ wr(DIB3000MB_REG_UNK_108, DIB3000MB_UNK_108);
+ wr(DIB3000MB_REG_UNK_122, DIB3000MB_UNK_122);
+ wr(DIB3000MB_REG_MOBILE_MODE_QAM, DIB3000MB_MOBILE_MODE_QAM_OFF);
+ wr(DIB3000MB_REG_BERLEN, DIB3000MB_BERLEN_DEFAULT);
+
+ wr_foreach(dib3000mb_reg_filter_coeffs, dib3000mb_filter_coeffs);
+
+ wr(DIB3000MB_REG_MOBILE_ALGO, DIB3000MB_MOBILE_ALGO_ON);
+ wr(DIB3000MB_REG_MULTI_DEMOD_MSB, DIB3000MB_MULTI_DEMOD_MSB);
+ wr(DIB3000MB_REG_MULTI_DEMOD_LSB, DIB3000MB_MULTI_DEMOD_LSB);
+
+ wr(DIB3000MB_REG_OUTPUT_MODE, DIB3000MB_OUTPUT_MODE_SLAVE);
+
+ wr(DIB3000MB_REG_FIFO_142, DIB3000MB_FIFO_142);
+ wr(DIB3000MB_REG_MPEG2_OUT_MODE, DIB3000MB_MPEG2_OUT_MODE_188);
+ wr(DIB3000MB_REG_PID_PARSE, DIB3000MB_PID_PARSE_ACTIVATE);
+ wr(DIB3000MB_REG_FIFO, DIB3000MB_FIFO_INHIBIT);
+ wr(DIB3000MB_REG_FIFO_146, DIB3000MB_FIFO_146);
+ wr(DIB3000MB_REG_FIFO_147, DIB3000MB_FIFO_147);
+
+ wr(DIB3000MB_REG_DATA_IN_DIVERSITY, DIB3000MB_DATA_DIVERSITY_IN_OFF);
+
+ return 0;
+}
+
+static int dib3000mb_get_frontend(struct dvb_frontend* fe)
+{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ struct dib3000_state* state = fe->demodulator_priv;
+ fe_code_rate_t *cr;
+ u16 tps_val;
+ int inv_test1,inv_test2;
+ u32 dds_val, threshold = 0x800000;
+
+ if (!rd(DIB3000MB_REG_TPS_LOCK))
+ return 0;
+
+ dds_val = ((rd(DIB3000MB_REG_DDS_VALUE_MSB) & 0xff) << 16) + rd(DIB3000MB_REG_DDS_VALUE_LSB);
+ deb_getf("DDS_VAL: %x %x %x",dds_val, rd(DIB3000MB_REG_DDS_VALUE_MSB), rd(DIB3000MB_REG_DDS_VALUE_LSB));
+ if (dds_val < threshold)
+ inv_test1 = 0;
+ else if (dds_val == threshold)
+ inv_test1 = 1;
+ else
+ inv_test1 = 2;
+
+ dds_val = ((rd(DIB3000MB_REG_DDS_FREQ_MSB) & 0xff) << 16) + rd(DIB3000MB_REG_DDS_FREQ_LSB);
+ deb_getf("DDS_FREQ: %x %x %x",dds_val, rd(DIB3000MB_REG_DDS_FREQ_MSB), rd(DIB3000MB_REG_DDS_FREQ_LSB));
+ if (dds_val < threshold)
+ inv_test2 = 0;
+ else if (dds_val == threshold)
+ inv_test2 = 1;
+ else
+ inv_test2 = 2;
+
+ c->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, c->inversion);
+
+ switch ((tps_val = rd(DIB3000MB_REG_TPS_QAM))) {
+ case DIB3000_CONSTELLATION_QPSK:
+ deb_getf("QPSK ");
+ c->modulation = QPSK;
+ break;
+ case DIB3000_CONSTELLATION_16QAM:
+ deb_getf("QAM16 ");
+ c->modulation = QAM_16;
+ break;
+ case DIB3000_CONSTELLATION_64QAM:
+ deb_getf("QAM64 ");
+ c->modulation = QAM_64;
+ break;
+ default:
+ err("Unexpected constellation returned by TPS (%d)", tps_val);
+ break;
+ }
+ deb_getf("TPS: %d\n", tps_val);
+
+ if (rd(DIB3000MB_REG_TPS_HRCH)) {
+ deb_getf("HRCH ON\n");
+ cr = &c->code_rate_LP;
+ c->code_rate_HP = FEC_NONE;
+ switch ((tps_val = rd(DIB3000MB_REG_TPS_VIT_ALPHA))) {
+ case DIB3000_ALPHA_0:
+ deb_getf("HIERARCHY_NONE ");
+ c->hierarchy = HIERARCHY_NONE;
+ break;
+ case DIB3000_ALPHA_1:
+ deb_getf("HIERARCHY_1 ");
+ c->hierarchy = HIERARCHY_1;
+ break;
+ case DIB3000_ALPHA_2:
+ deb_getf("HIERARCHY_2 ");
+ c->hierarchy = HIERARCHY_2;
+ break;
+ case DIB3000_ALPHA_4:
+ deb_getf("HIERARCHY_4 ");
+ c->hierarchy = HIERARCHY_4;
+ break;
+ default:
+ err("Unexpected ALPHA value returned by TPS (%d)", tps_val);
+ break;
+ }
+ deb_getf("TPS: %d\n", tps_val);
+
+ tps_val = rd(DIB3000MB_REG_TPS_CODE_RATE_LP);
+ } else {
+ deb_getf("HRCH OFF\n");
+ cr = &c->code_rate_HP;
+ c->code_rate_LP = FEC_NONE;
+ c->hierarchy = HIERARCHY_NONE;
+
+ tps_val = rd(DIB3000MB_REG_TPS_CODE_RATE_HP);
+ }
+
+ switch (tps_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;
+ }
+ deb_getf("TPS: %d\n",tps_val);
+
+ switch ((tps_val = rd(DIB3000MB_REG_TPS_GUARD_TIME))) {
+ case DIB3000_GUARD_TIME_1_32:
+ deb_getf("GUARD_INTERVAL_1_32 ");
+ c->guard_interval = GUARD_INTERVAL_1_32;
+ break;
+ case DIB3000_GUARD_TIME_1_16:
+ deb_getf("GUARD_INTERVAL_1_16 ");
+ c->guard_interval = GUARD_INTERVAL_1_16;
+ break;
+ case DIB3000_GUARD_TIME_1_8:
+ deb_getf("GUARD_INTERVAL_1_8 ");
+ c->guard_interval = GUARD_INTERVAL_1_8;
+ break;
+ case DIB3000_GUARD_TIME_1_4:
+ deb_getf("GUARD_INTERVAL_1_4 ");
+ c->guard_interval = GUARD_INTERVAL_1_4;
+ break;
+ default:
+ err("Unexpected Guard Time returned by TPS (%d)", tps_val);
+ break;
+ }
+ deb_getf("TPS: %d\n", tps_val);
+
+ switch ((tps_val = rd(DIB3000MB_REG_TPS_FFT))) {
+ case DIB3000_TRANSMISSION_MODE_2K:
+ deb_getf("TRANSMISSION_MODE_2K ");
+ c->transmission_mode = TRANSMISSION_MODE_2K;
+ break;
+ case DIB3000_TRANSMISSION_MODE_8K:
+ deb_getf("TRANSMISSION_MODE_8K ");
+ c->transmission_mode = TRANSMISSION_MODE_8K;
+ break;
+ default:
+ err("unexpected transmission mode return by TPS (%d)", tps_val);
+ break;
+ }
+ deb_getf("TPS: %d\n", tps_val);
+
+ return 0;
+}
+
+static int dib3000mb_read_status(struct dvb_frontend* fe, fe_status_t *stat)
+{
+ struct dib3000_state* state = fe->demodulator_priv;
+
+ *stat = 0;
+
+ if (rd(DIB3000MB_REG_AGC_LOCK))
+ *stat |= FE_HAS_SIGNAL;
+ if (rd(DIB3000MB_REG_CARRIER_LOCK))
+ *stat |= FE_HAS_CARRIER;
+ if (rd(DIB3000MB_REG_VIT_LCK))
+ *stat |= FE_HAS_VITERBI;
+ if (rd(DIB3000MB_REG_TS_SYNC_LOCK))
+ *stat |= (FE_HAS_SYNC | FE_HAS_LOCK);
+
+ deb_getf("actual status is %2x\n",*stat);
+
+ deb_getf("autoval: tps: %d, qam: %d, hrch: %d, alpha: %d, hp: %d, lp: %d, guard: %d, fft: %d cell: %d\n",
+ rd(DIB3000MB_REG_TPS_LOCK),
+ rd(DIB3000MB_REG_TPS_QAM),
+ rd(DIB3000MB_REG_TPS_HRCH),
+ rd(DIB3000MB_REG_TPS_VIT_ALPHA),
+ rd(DIB3000MB_REG_TPS_CODE_RATE_HP),
+ rd(DIB3000MB_REG_TPS_CODE_RATE_LP),
+ rd(DIB3000MB_REG_TPS_GUARD_TIME),
+ rd(DIB3000MB_REG_TPS_FFT),
+ rd(DIB3000MB_REG_TPS_CELL_ID));
+
+ //*stat = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
+ return 0;
+}
+
+static int dib3000mb_read_ber(struct dvb_frontend* fe, u32 *ber)
+{
+ struct dib3000_state* state = fe->demodulator_priv;
+
+ *ber = ((rd(DIB3000MB_REG_BER_MSB) << 16) | rd(DIB3000MB_REG_BER_LSB));
+ return 0;
+}
+
+/* see dib3000-watch dvb-apps for exact calcuations of signal_strength and snr */
+static int dib3000mb_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
+{
+ struct dib3000_state* state = fe->demodulator_priv;
+
+ *strength = rd(DIB3000MB_REG_SIGNAL_POWER) * 0xffff / 0x170;
+ return 0;
+}
+
+static int dib3000mb_read_snr(struct dvb_frontend* fe, u16 *snr)
+{
+ struct dib3000_state* state = fe->demodulator_priv;
+ short sigpow = rd(DIB3000MB_REG_SIGNAL_POWER);
+ int icipow = ((rd(DIB3000MB_REG_NOISE_POWER_MSB) & 0xff) << 16) |
+ rd(DIB3000MB_REG_NOISE_POWER_LSB);
+ *snr = (sigpow << 8) / ((icipow > 0) ? icipow : 1);
+ return 0;
+}
+
+static int dib3000mb_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
+{
+ struct dib3000_state* state = fe->demodulator_priv;
+
+ *unc = rd(DIB3000MB_REG_PACKET_ERROR_RATE);
+ return 0;
+}
+
+static int dib3000mb_sleep(struct dvb_frontend* fe)
+{
+ struct dib3000_state* state = fe->demodulator_priv;
+ deb_info("dib3000mb is going to bed.\n");
+ wr(DIB3000MB_REG_POWER_CONTROL, DIB3000MB_POWER_DOWN);
+ return 0;
+}
+
+static int dib3000mb_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
+{
+ tune->min_delay_ms = 800;
+ return 0;
+}
+
+static int dib3000mb_fe_init_nonmobile(struct dvb_frontend* fe)
+{
+ return dib3000mb_fe_init(fe, 0);
+}
+
+static int dib3000mb_set_frontend_and_tuner(struct dvb_frontend *fe)
+{
+ return dib3000mb_set_frontend(fe, 1);
+}
+
+static void dib3000mb_release(struct dvb_frontend* fe)
+{
+ struct dib3000_state *state = fe->demodulator_priv;
+ kfree(state);
+}
+
+/* pid filter and transfer stuff */
+static int dib3000mb_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+DIB3000MB_REG_FIRST_PID,pid);
+ return 0;
+}
+
+static int dib3000mb_fifo_control(struct dvb_frontend *fe, int onoff)
+{
+ struct dib3000_state *state = fe->demodulator_priv;
+
+ deb_xfer("%s fifo\n",onoff ? "enabling" : "disabling");
+ if (onoff) {
+ wr(DIB3000MB_REG_FIFO, DIB3000MB_FIFO_ACTIVATE);
+ } else {
+ wr(DIB3000MB_REG_FIFO, DIB3000MB_FIFO_INHIBIT);
+ }
+ return 0;
+}
+
+static int dib3000mb_pid_parse(struct dvb_frontend *fe, int onoff)
+{
+ struct dib3000_state *state = fe->demodulator_priv;
+ deb_xfer("%s pid parsing\n",onoff ? "enabling" : "disabling");
+ wr(DIB3000MB_REG_PID_PARSE,onoff);
+ return 0;
+}
+
+static int dib3000mb_tuner_pass_ctrl(struct dvb_frontend *fe, int onoff, u8 pll_addr)
+{
+ struct dib3000_state *state = fe->demodulator_priv;
+ if (onoff) {
+ wr(DIB3000MB_REG_TUNER, DIB3000_TUNER_WRITE_ENABLE(pll_addr));
+ } else {
+ wr(DIB3000MB_REG_TUNER, DIB3000_TUNER_WRITE_DISABLE(pll_addr));
+ }
+ return 0;
+}
+
+static struct dvb_frontend_ops dib3000mb_ops;
+
+struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
+ struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops)
+{
+ struct dib3000_state* state = NULL;
+
+ /* allocate memory for the internal state */
+ state = kzalloc(sizeof(struct dib3000_state), GFP_KERNEL);
+ if (state == NULL)
+ goto error;
+
+ /* setup the state */
+ state->i2c = i2c;
+ memcpy(&state->config,config,sizeof(struct dib3000_config));
+
+ /* check for the correct demod */
+ if (rd(DIB3000_REG_MANUFACTOR_ID) != DIB3000_I2C_ID_DIBCOM)
+ goto error;
+
+ if (rd(DIB3000_REG_DEVICE_ID) != DIB3000MB_DEVICE_ID)
+ goto error;
+
+ /* create dvb_frontend */
+ memcpy(&state->frontend.ops, &dib3000mb_ops, sizeof(struct dvb_frontend_ops));
+ state->frontend.demodulator_priv = state;
+
+ /* set the xfer operations */
+ xfer_ops->pid_parse = dib3000mb_pid_parse;
+ xfer_ops->fifo_ctrl = dib3000mb_fifo_control;
+ xfer_ops->pid_ctrl = dib3000mb_pid_control;
+ xfer_ops->tuner_pass_ctrl = dib3000mb_tuner_pass_ctrl;
+
+ return &state->frontend;
+
+error:
+ kfree(state);
+ return NULL;
+}
+
+static struct dvb_frontend_ops dib3000mb_ops = {
+ .delsys = { SYS_DVBT },
+ .info = {
+ .name = "DiBcom 3000M-B DVB-T",
+ .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 = dib3000mb_release,
+
+ .init = dib3000mb_fe_init_nonmobile,
+ .sleep = dib3000mb_sleep,
+
+ .set_frontend = dib3000mb_set_frontend_and_tuner,
+ .get_frontend = dib3000mb_get_frontend,
+ .get_tune_settings = dib3000mb_fe_get_tune_settings,
+
+ .read_status = dib3000mb_read_status,
+ .read_ber = dib3000mb_read_ber,
+ .read_signal_strength = dib3000mb_read_signal_strength,
+ .read_snr = dib3000mb_read_snr,
+ .read_ucblocks = dib3000mb_read_unc_blocks,
+};
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL(dib3000mb_attach);
generated by cgit (git 2.34.1) at 2024-12-23 05:18:56 +0000