2 STB0899 Multistandard Frontend driver
3 Copyright (C) Manu Abraham (abraham.manu@gmail.com)
5 Copyright (C) ST Microelectronics
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include <linux/init.h>
23 #include <linux/kernel.h>
24 #include <linux/module.h>
25 #include <linux/string.h>
27 #include <linux/dvb/frontend.h>
28 #include "dvb_frontend.h"
30 #include "stb0899_drv.h"
31 #include "stb0899_priv.h"
32 #include "stb0899_reg.h"
34 static unsigned int verbose = 5;
35 module_param(verbose, int, 0644);
37 /* C/N in dB/10, NIRM/NIRL */
38 static const struct stb0899_tab stb0899_cn_tab[] = {
61 /* DVB-S AGCIQ_VALUE vs. signal level in dBm/10.
62 * As measured, connected to a modulator.
63 * -8.0 to -50.0 dBm directly connected,
64 * -52.0 to -74.8 with extra attenuation.
65 * Cut-off to AGCIQ_VALUE = 0x80 below -74.8dBm.
66 * Crude linear extrapolation below -84.8dBm and above -8.0dBm.
68 static const struct stb0899_tab stb0899_dvbsrf_tab[] = {
102 /* DVB-S2 IF_AGC_GAIN vs. signal level in dBm/10.
103 * As measured, connected to a modulator.
104 * -8.0 to -50.1 dBm directly connected,
105 * -53.0 to -76.6 with extra attenuation.
106 * Cut-off to IF_AGC_GAIN = 0x3fff below -76.6dBm.
107 * Crude linear extrapolation below -76.6dBm and above -8.0dBm.
109 static const struct stb0899_tab stb0899_dvbs2rf_tab[] = {
136 /* DVB-S2 Es/N0 quant in dB/100 vs read value * 100*/
137 struct stb0899_tab stb0899_quant_tab[] = {
179 /* DVB-S2 Es/N0 estimate in dB/100 vs read value */
180 struct stb0899_tab stb0899_est_tab[] = {
220 int _stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
224 u8 b0[] = { reg >> 8, reg & 0xff };
227 struct i2c_msg msg[] = {
229 .addr = state->config->demod_address,
234 .addr = state->config->demod_address,
241 ret = i2c_transfer(state->i2c, msg, 2);
243 if (ret != -ERESTARTSYS)
244 dprintk(verbose, FE_ERROR, 1,
245 "Read error, Reg=[0x%02x], Status=%d",
248 return ret < 0 ? ret : -EREMOTEIO;
250 if (unlikely(verbose >= FE_DEBUGREG))
251 dprintk(verbose, FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
254 return (unsigned int)buf;
257 int stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
261 result = _stb0899_read_reg(state, reg);
264 * access to 0xf2xx/0xf6xx
265 * must be followed by read from 0xf2ff/0xf6ff.
267 if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
268 (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
269 _stb0899_read_reg(state, (reg | 0x00ff));
274 u32 _stb0899_read_s2reg(struct stb0899_state *state,
276 u32 stb0899_base_addr,
277 u16 stb0899_reg_offset)
285 GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */
286 GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */
287 GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */
288 GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */
289 GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */
290 GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */
293 0x00, /* 0xf3 Reg Offset */
294 0x00, /* 0x44 Reg Offset */
297 struct i2c_msg msg_0 = {
298 .addr = state->config->demod_address,
304 struct i2c_msg msg_1 = {
305 .addr = state->config->demod_address,
311 struct i2c_msg msg_r = {
312 .addr = state->config->demod_address,
318 tmpaddr = stb0899_reg_offset & 0xff00;
319 if (!(stb0899_reg_offset & 0x8))
320 tmpaddr = stb0899_reg_offset | 0x20;
322 buf_1[0] = GETBYTE(tmpaddr, BYTE1);
323 buf_1[1] = GETBYTE(tmpaddr, BYTE0);
325 status = i2c_transfer(state->i2c, &msg_0, 1);
327 if (status != -ERESTARTSYS)
328 printk(KERN_ERR "%s ERR(1), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
329 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
335 status = i2c_transfer(state->i2c, &msg_1, 1);
339 status = i2c_transfer(state->i2c, &msg_r, 1);
343 buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
344 buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
347 status = i2c_transfer(state->i2c, &msg_1, 1);
349 if (status != -ERESTARTSYS)
350 printk(KERN_ERR "%s ERR(2), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
351 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
355 status = i2c_transfer(state->i2c, &msg_r, 1);
357 if (status != -ERESTARTSYS)
358 printk(KERN_ERR "%s ERR(3), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
359 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
360 return status < 0 ? status : -EREMOTEIO;
363 data = MAKEWORD32(buf[3], buf[2], buf[1], buf[0]);
364 if (unlikely(state->verbose >= FE_DEBUGREG))
365 printk(KERN_DEBUG "%s Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
366 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, data);
371 return status < 0 ? status : -EREMOTEIO;
374 int stb0899_write_s2reg(struct stb0899_state *state,
376 u32 stb0899_base_addr,
377 u16 stb0899_reg_offset,
382 /* Base Address Setup */
384 GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */
385 GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */
386 GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */
387 GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */
388 GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */
389 GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */
392 0x00, /* 0xf3 Reg Offset */
393 0x00, /* 0x44 Reg Offset */
400 struct i2c_msg msg_0 = {
401 .addr = state->config->demod_address,
407 struct i2c_msg msg_1 = {
408 .addr = state->config->demod_address,
414 buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
415 buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
416 buf_1[2] = GETBYTE(stb0899_data, BYTE0);
417 buf_1[3] = GETBYTE(stb0899_data, BYTE1);
418 buf_1[4] = GETBYTE(stb0899_data, BYTE2);
419 buf_1[5] = GETBYTE(stb0899_data, BYTE3);
421 if (unlikely(state->verbose >= FE_DEBUGREG))
422 printk(KERN_DEBUG "%s Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
423 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data);
425 status = i2c_transfer(state->i2c, &msg_0, 1);
426 if (unlikely(status < 1)) {
427 if (status != -ERESTARTSYS)
428 printk(KERN_ERR "%s ERR (1), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
429 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
432 status = i2c_transfer(state->i2c, &msg_1, 1);
433 if (unlikely(status < 1)) {
434 if (status != -ERESTARTSYS)
435 printk(KERN_ERR "%s ERR (2), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
436 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
438 return status < 0 ? status : -EREMOTEIO;
444 return status < 0 ? status : -EREMOTEIO;
447 int stb0899_read_regs(struct stb0899_state *state, unsigned int reg, u8 *buf, size_t count)
451 u8 b0[] = { reg >> 8, reg & 0xff };
453 struct i2c_msg msg[] = {
455 .addr = state->config->demod_address,
460 .addr = state->config->demod_address,
467 status = i2c_transfer(state->i2c, msg, 2);
469 if (status != -ERESTARTSYS)
470 printk(KERN_ERR "%s Read error, Reg=[0x%04x], Count=%u, Status=%d\n",
471 __func__, reg, count, status);
476 * access to 0xf2xx/0xf6xx
477 * must be followed by read from 0xf2ff/0xf6ff.
479 if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
480 (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
481 _stb0899_read_reg(state, (reg | 0x00ff));
483 if (unlikely(state->verbose >= FE_DEBUGREG)) {
486 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
487 for (i = 0; i < count; i++) {
488 printk(" %02x", buf[i]);
495 return status < 0 ? status : -EREMOTEIO;
498 int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data, size_t count)
502 struct i2c_msg i2c_msg = {
503 .addr = state->config->demod_address,
511 memcpy(&buf[2], data, count);
513 if (unlikely(state->verbose >= FE_DEBUGREG)) {
516 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
517 for (i = 0; i < count; i++)
518 printk(" %02x", data[i]);
521 ret = i2c_transfer(state->i2c, &i2c_msg, 1);
525 * access to 0xf2xx/0xf6xx
526 * must be followed by read from 0xf2ff/0xf6ff.
528 if ((((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
529 stb0899_read_reg(state, (reg | 0x00ff));
532 if (ret != -ERESTARTSYS)
533 dprintk(verbose, FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
534 reg, data[0], count, ret);
535 return ret < 0 ? ret : -EREMOTEIO;
541 int stb0899_write_reg(struct stb0899_state *state, unsigned int reg, u8 data)
543 return stb0899_write_regs(state, reg, &data, 1);
548 * Get STB0899 master clock frequency
549 * ExtClk: external clock frequency (Hz)
551 static u32 stb0899_get_mclk(struct stb0899_state *state)
553 u32 mclk = 90000000, div = 0;
555 div = stb0899_read_reg(state, STB0899_NCOARSE);
556 mclk = (div + 1) * state->config->xtal_freq / 6;
557 dprintk(verbose, FE_DEBUG, 1, "div=%d, mclk=%d", div, mclk);
564 * Set STB0899 master Clock frequency
565 * Mclk: demodulator master clock
566 * ExtClk: external clock frequency (Hz)
568 static void stb0899_set_mclk(struct stb0899_state *state, u32 Mclk)
570 struct stb0899_internal *internal = &state->internal;
573 dprintk(verbose, FE_DEBUG, 1, "state->config=%p", state->config);
574 mdiv = ((6 * Mclk) / state->config->xtal_freq) - 1;
575 dprintk(verbose, FE_DEBUG, 1, "mdiv=%d", mdiv);
577 stb0899_write_reg(state, STB0899_NCOARSE, mdiv);
578 internal->master_clk = stb0899_get_mclk(state);
580 dprintk(verbose, FE_DEBUG, 1, "MasterCLOCK=%d", internal->master_clk);
583 static void stb0899_release(struct dvb_frontend *fe)
585 struct stb0899_state *state = fe->demodulator_priv;
587 dprintk(verbose, FE_DEBUG, 1, "Release Frontend");
595 static int stb0899_get_alpha(struct stb0899_state *state)
599 mode_coeff = stb0899_read_reg(state, STB0899_DEMOD);
601 if (STB0899_GETFIELD(MODECOEFF, mode_coeff) == 1)
610 static void stb0899_init_calc(struct stb0899_state *state)
612 struct stb0899_internal *internal = &state->internal;
618 /* Read registers (in burst mode) */
619 agc1cn = stb0899_read_reg(state, STB0899_AGC1CN);
620 stb0899_read_regs(state, STB0899_AGC1REF, agc, 2); /* AGC1R and AGC2O */
622 /* Initial calculations */
623 master_clk = stb0899_get_mclk(state);
624 internal->t_agc1 = 0;
625 internal->t_agc2 = 0;
626 internal->master_clk = master_clk;
627 internal->mclk = master_clk / 65536L;
628 internal->rolloff = stb0899_get_alpha(state);
630 /* DVBS2 Initial calculations */
631 /* Set AGC value to the middle */
632 internal->agc_gain = 8154;
633 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_CNTRL);
634 STB0899_SETFIELD_VAL(IF_GAIN_INIT, reg, internal->agc_gain);
635 stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_IF_AGC_CNTRL, STB0899_OFF0_IF_AGC_CNTRL, reg);
637 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, RRC_ALPHA);
638 internal->rrc_alpha = STB0899_GETFIELD(RRC_ALPHA, reg);
640 internal->center_freq = 0;
641 internal->av_frame_coarse = 10;
642 internal->av_frame_fine = 20;
643 internal->step_size = 2;
645 if ((pParams->SpectralInv == FE_IQ_NORMAL) || (pParams->SpectralInv == FE_IQ_AUTO))
646 pParams->IQLocked = 0;
648 pParams->IQLocked = 1;
652 static int stb0899_wait_diseqc_fifo_empty(struct stb0899_state *state, int timeout)
655 unsigned long start = jiffies;
658 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
659 if (!STB0899_GETFIELD(FIFOFULL, reg))
661 if ((jiffies - start) > timeout) {
662 dprintk(verbose, FE_ERROR, 1, "timed out !!");
670 static int stb0899_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
672 struct stb0899_state *state = fe->demodulator_priv;
675 if (cmd->msg_len > 8)
678 /* enable FIFO precharge */
679 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
680 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 1);
681 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
682 for (i = 0; i < cmd->msg_len; i++) {
683 /* wait for FIFO empty */
684 if (stb0899_wait_diseqc_fifo_empty(state, 10) < 0)
687 stb0899_write_reg(state, STB0899_DISFIFO, cmd->msg[i]);
689 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
690 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0);
691 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
696 static int stb0899_wait_diseqc_rxidle(struct stb0899_state *state, int timeout)
699 unsigned long start = jiffies;
701 while (!STB0899_GETFIELD(RXEND, reg)) {
702 reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
703 if (jiffies - start > timeout) {
704 dprintk(verbose, FE_ERROR, 1, "timed out!!");
713 static int stb0899_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
715 struct stb0899_state *state = fe->demodulator_priv;
716 u8 reg, length = 0, i;
719 if (stb0899_wait_diseqc_rxidle(state, 100) < 0)
722 reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
723 if (STB0899_GETFIELD(RXEND, reg)) {
725 reg = stb0899_read_reg(state, STB0899_DISRX_ST1);
726 length = STB0899_GETFIELD(FIFOBYTENBR, reg);
728 if (length > sizeof (reply->msg)) {
732 reply->msg_len = length;
735 for (i = 0; i < length; i++)
736 reply->msg[i] = stb0899_read_reg(state, STB0899_DISFIFO);
745 static int stb0899_wait_diseqc_txidle(struct stb0899_state *state, int timeout)
748 unsigned long start = jiffies;
750 while (!STB0899_GETFIELD(TXIDLE, reg)) {
751 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
752 if (jiffies - start > timeout) {
753 dprintk(verbose, FE_ERROR, 1, "timed out!!");
761 static int stb0899_send_diseqc_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
763 struct stb0899_state *state = fe->demodulator_priv;
766 /* wait for diseqc idle */
767 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
770 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
772 /* set to burst mode */
773 STB0899_SETFIELD_VAL(DISEQCMODE, reg, 0x02);
774 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x01);
775 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
779 stb0899_write_reg(state, STB0899_DISFIFO, 0x00);
783 stb0899_write_reg(state, STB0899_DISFIFO, 0xff);
786 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
787 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x00);
788 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
789 /* wait for diseqc idle */
790 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
794 stb0899_write_reg(state, STB0899_DISCNTRL1, old_state);
799 static int stb0899_diseqc_init(struct stb0899_state *state)
801 struct dvb_diseqc_master_cmd tx_data;
802 struct dvb_diseqc_slave_reply rx_data;
804 u8 f22_tx, f22_rx, reg;
806 u32 mclk, tx_freq = 22000, count = 0, i;
808 u32 trial = 0; /* try max = 2 (try 20khz and 17.5 khz) */
809 u32 ret_1 = 0; /* 20 Khz status */
810 u32 ret_2 = 0; /* 17.5 Khz status */
812 tx_data.msg[0] = 0xe2;
814 reg = stb0899_read_reg(state, STB0899_DISCNTRL2);
815 STB0899_SETFIELD_VAL(ONECHIP_TRX, reg, 0);
816 stb0899_write_reg(state, STB0899_DISCNTRL2, reg);
819 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
820 STB0899_SETFIELD_VAL(DISEQCRESET, reg, 1);
821 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
823 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
824 STB0899_SETFIELD_VAL(DISEQCRESET, reg, 0);
825 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
827 mclk = stb0899_get_mclk(state);
828 f22_tx = mclk / (tx_freq * 32);
829 stb0899_write_reg(state, STB0899_DISF22, f22_tx); /* DiSEqC Tx freq */
830 state->rx_freq = 20000;
831 f22_rx = mclk / (state->rx_freq * 32);
836 static int stb0899_sleep(struct dvb_frontend *fe)
838 struct stb0899_state *state = fe->demodulator_priv;
841 dprintk(verbose, FE_DEBUG, 1, "Going to Sleep .. (Really tired .. :-))");
845 static int stb0899_wakeup(struct dvb_frontend *fe)
848 struct stb0899_state *state = fe->demodulator_priv;
850 if ((rc = stb0899_write_reg(state, STB0899_SYNTCTRL, STB0899_SELOSCI)))
852 /* Activate all clocks; DVB-S2 registers are inaccessible otherwise. */
853 if ((rc = stb0899_write_reg(state, STB0899_STOPCLK1, 0x00)))
855 if ((rc = stb0899_write_reg(state, STB0899_STOPCLK2, 0x00)))
861 static int stb0899_init(struct dvb_frontend *fe)
864 struct stb0899_state *state = fe->demodulator_priv;
865 struct stb0899_config *config = state->config;
867 dprintk(verbose, FE_DEBUG, 1, "Initializing STB0899 ... ");
868 // mutex_init(&state->search_lock);
871 dprintk(verbose, FE_DEBUG, 1, "init device");
872 for (i = 0; config->init_dev[i].address != 0xffff; i++)
873 stb0899_write_reg(state, config->init_dev[i].address, config->init_dev[i].data);
875 dprintk(verbose, FE_DEBUG, 1, "init S2 demod");
877 for (i = 0; config->init_s2_demod[i].offset != 0xffff; i++)
878 stb0899_write_s2reg(state, STB0899_S2DEMOD,
879 config->init_s2_demod[i].base_address,
880 config->init_s2_demod[i].offset,
881 config->init_s2_demod[i].data);
883 dprintk(verbose, FE_DEBUG, 1, "init S1 demod");
885 for (i = 0; config->init_s1_demod[i].address != 0xffff; i++)
886 stb0899_write_reg(state, config->init_s1_demod[i].address, config->init_s1_demod[i].data);
888 dprintk(verbose, FE_DEBUG, 1, "init S2 FEC");
890 for (i = 0; config->init_s2_fec[i].offset != 0xffff; i++)
891 stb0899_write_s2reg(state, STB0899_S2FEC,
892 config->init_s2_fec[i].base_address,
893 config->init_s2_fec[i].offset,
894 config->init_s2_fec[i].data);
896 dprintk(verbose, FE_DEBUG, 1, "init TST");
898 for (i = 0; config->init_tst[i].address != 0xffff; i++)
899 stb0899_write_reg(state, config->init_tst[i].address, config->init_tst[i].data);
901 stb0899_init_calc(state);
902 stb0899_diseqc_init(state);
907 static int stb0899_table_lookup(const struct stb0899_tab *tab, int max, int val)
912 if (val < tab[min].read)
914 else if (val >= tab[max].read)
917 while ((max - min) > 1) {
918 med = (max + min) / 2;
919 if (val >= tab[min].read && val < tab[med].read)
924 res = ((val - tab[min].read) *
925 (tab[max].real - tab[min].real) /
926 (tab[max].read - tab[min].read)) +
933 static int stb0899_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
935 struct stb0899_state *state = fe->demodulator_priv;
936 struct stb0899_internal *internal = &state->internal;
940 switch (state->delsys) {
941 case DVBFE_DELSYS_DVBS:
942 case DVBFE_DELSYS_DSS:
943 if (internal->lock) {
944 reg = stb0899_read_reg(state, STB0899_VSTATUS);
945 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
947 reg = stb0899_read_reg(state, STB0899_AGCIQIN);
948 val = (s32)(s8)STB0899_GETFIELD(AGCIQVALUE, reg);
950 *strength = stb0899_table_lookup(stb0899_dvbsrf_tab, ARRAY_SIZE(stb0899_dvbsrf_tab) - 1, val);
952 dprintk(verbose, FE_DEBUG, 1, "AGCIQVALUE = 0x%02x, C = %d * 0.1 dBm",
953 val & 0xff, *strength);
957 case DVBFE_DELSYS_DVBS2:
958 if (internal->lock) {
959 reg = STB0899_READ_S2REG(STB0899_DEMOD, IF_AGC_GAIN);
960 val = STB0899_GETFIELD(IF_AGC_GAIN, reg);
962 *strength = stb0899_table_lookup(stb0899_dvbs2rf_tab, ARRAY_SIZE(stb0899_dvbs2rf_tab) - 1, val);
964 dprintk(verbose, FE_DEBUG, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm",
965 val & 0x3fff, *strength);
969 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
976 static int stb0899_read_snr(struct dvb_frontend *fe, u16 *snr)
978 struct stb0899_state *state = fe->demodulator_priv;
979 struct stb0899_internal *internal = &state->internal;
981 unsigned int val, quant, quantn = -1, est, estn = -1;
985 reg = stb0899_read_reg(state, STB0899_VSTATUS);
986 switch (state->delsys) {
987 case DVBFE_DELSYS_DVBS:
988 case DVBFE_DELSYS_DSS:
989 if (internal->lock) {
990 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
992 stb0899_read_regs(state, STB0899_NIRM, buf, 2);
993 val = MAKEWORD16(buf[0], buf[1]);
995 *snr = stb0899_table_lookup(stb0899_cn_tab, ARRAY_SIZE(stb0899_cn_tab) - 1, val);
996 dprintk(verbose, FE_DEBUG, 1, "NIR = 0x%02x%02x = %u, C/N = %d * 0.1 dBm\n",
997 buf[0], buf[1], val, *snr);
1001 case DVBFE_DELSYS_DVBS2:
1002 if (internal->lock) {
1003 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_CNTRL1);
1004 quant = STB0899_GETFIELD(UWP_ESN0_QUANT, reg);
1005 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_STAT2);
1006 est = STB0899_GETFIELD(ESN0_EST, reg);
1008 val = 301; /* C/N = 30.1 dB */
1010 val = 270; /* C/N = 27.0 dB */
1012 /* quantn = 100 * log(quant^2) */
1013 quantn = stb0899_table_lookup(stb0899_quant_tab, ARRAY_SIZE(stb0899_quant_tab) - 1, quant * 100);
1014 /* estn = 100 * log(est) */
1015 estn = stb0899_table_lookup(stb0899_est_tab, ARRAY_SIZE(stb0899_est_tab) - 1, est);
1016 /* snr(dBm/10) = -10*(log(est)-log(quant^2)) => snr(dBm/10) = (100*log(quant^2)-100*log(est))/10 */
1017 val = (quantn - estn) / 10;
1020 dprintk(verbose, FE_DEBUG, 1, "Es/N0 quant = %d (%d) estimate = %u (%d), C/N = %d * 0.1 dBm",
1021 quant, quantn, est, estn, val);
1025 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
1032 static int stb0899_read_status(struct dvb_frontend *fe, enum fe_status *status)
1034 struct stb0899_state *state = fe->demodulator_priv;
1035 struct stb0899_internal *internal = &state->internal;
1039 switch (state->delsys) {
1040 case DVBFE_DELSYS_DVBS:
1041 case DVBFE_DELSYS_DSS:
1042 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S/DSS");
1043 if (internal->lock) {
1044 reg = stb0899_read_reg(state, STB0899_VSTATUS);
1045 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
1046 dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_CARRIER | FE_HAS_LOCK");
1047 *status |= FE_HAS_CARRIER | FE_HAS_LOCK;
1049 reg = stb0899_read_reg(state, STB0899_PLPARM);
1050 if (STB0899_GETFIELD(VITCURPUN, reg)) {
1051 dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_VITERBI | FE_HAS_SYNC");
1052 *status |= FE_HAS_VITERBI | FE_HAS_SYNC;
1057 case DVBFE_DELSYS_DVBS2:
1058 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S2");
1059 if (internal->lock) {
1060 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STAT2);
1061 if (STB0899_GETFIELD(UWP_LOCK, reg) && STB0899_GETFIELD(CSM_LOCK, reg)) {
1062 *status |= FE_HAS_CARRIER;
1063 dprintk(state->verbose, FE_DEBUG, 1,
1064 "UWP & CSM Lock ! ---> DVB-S2 FE_HAS_CARRIER");
1066 reg = stb0899_read_reg(state, STB0899_CFGPDELSTATUS1);
1067 if (STB0899_GETFIELD(CFGPDELSTATUS_LOCK, reg)) {
1068 *status |= FE_HAS_LOCK;
1069 dprintk(state->verbose, FE_DEBUG, 1,
1070 "Packet Delineator Locked ! -----> DVB-S2 FE_HAS_LOCK");
1073 if (STB0899_GETFIELD(CONTINUOUS_STREAM, reg)) {
1074 *status |= FE_HAS_VITERBI;
1075 dprintk(state->verbose, FE_DEBUG, 1,
1076 "Packet Delineator found VITERBI ! -----> DVB-S2 FE_HAS_VITERBI");
1078 if (STB0899_GETFIELD(ACCEPTED_STREAM, reg)) {
1079 *status |= FE_HAS_SYNC;
1080 dprintk(state->verbose, FE_DEBUG, 1,
1081 "Packet Delineator found SYNC ! -----> DVB-S2 FE_HAS_SYNC");
1087 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
1095 * viterbi error for DVB-S/DSS
1096 * packet error for DVB-S2
1097 * Bit Error Rate or Packet Error Rate * 10 ^ 7
1099 static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber)
1101 struct stb0899_state *state = fe->demodulator_priv;
1102 struct stb0899_internal *internal = &state->internal;
1109 switch (state->delsys) {
1110 case DVBFE_DELSYS_DVBS:
1111 case DVBFE_DELSYS_DSS:
1112 if (internal->lock) {
1113 /* average 5 BER values */
1114 for (i = 0; i < 5; i++) {
1116 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1117 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1118 *ber += MAKEWORD16(msb, lsb);
1122 if (STB0899_GETFIELD(VSTATUS_PRFVIT, internal->v_status)) {
1125 /* ber = ber * 10 ^ 7 */
1126 *ber /= (-1 + (1 << (2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1131 case DVBFE_DELSYS_DVBS2:
1132 if (internal->lock) {
1133 /* Average 5 PER values */
1134 for (i = 0; i < 5; i++) {
1136 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1137 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1138 *ber += MAKEWORD16(msb, lsb);
1140 /* ber = ber * 10 ^ 7 */
1142 *ber /= (-1 + (1 << (4 + 2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1146 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
1153 static int stb0899_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
1155 struct stb0899_state *state = fe->demodulator_priv;
1158 case SEC_VOLTAGE_13:
1159 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1160 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1161 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x00);
1163 case SEC_VOLTAGE_18:
1164 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x02);
1165 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1166 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1168 case SEC_VOLTAGE_OFF:
1169 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1170 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x82);
1171 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1180 static int stb0899_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
1182 struct stb0899_state *state = fe->demodulator_priv;
1183 struct stb0899_internal *internal = &state->internal;
1187 /* wait for diseqc idle */
1188 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
1193 div = (internal->master_clk / 100) / 5632;
1194 div = (div + 5) / 10;
1195 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x66);
1196 reg = stb0899_read_reg(state, STB0899_ACRPRESC);
1197 STB0899_SETFIELD_VAL(ACRPRESC, reg, 0x03);
1198 stb0899_write_reg(state, STB0899_ACRPRESC, reg);
1199 stb0899_write_reg(state, STB0899_ACRDIV1, div);
1202 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x20);
1210 static int stb0899_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
1213 struct stb0899_state *state = fe->demodulator_priv;
1215 i2c_stat = stb0899_read_reg(state, STB0899_I2CRPT);
1220 dprintk(state->verbose, FE_DEBUG, 1, "Enabling I2C Repeater ...");
1221 i2c_stat |= STB0899_I2CTON;
1222 if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
1227 dprintk(state->verbose, FE_ERROR, 1, "I2C Repeater enable failed");
1232 static inline void CONVERT32(u32 x, char *str)
1234 *str++ = (x >> 24) & 0xff;
1235 *str++ = (x >> 16) & 0xff;
1236 *str++ = (x >> 8) & 0xff;
1237 *str++ = (x >> 0) & 0xff;
1241 int stb0899_get_dev_id(struct stb0899_state *state)
1243 u8 chip_id, release;
1245 u32 demod_ver = 0, fec_ver = 0;
1246 char demod_str[4] = { 0 };
1247 char fec_str[4] = { 0 };
1249 id = stb0899_read_reg(state, STB0899_DEV_ID);
1250 dprintk(state->verbose, FE_DEBUG, 1, "ID reg=[0x%02x]", id);
1251 chip_id = STB0899_GETFIELD(CHIP_ID, id);
1252 release = STB0899_GETFIELD(CHIP_REL, id);
1254 dprintk(state->verbose, FE_ERROR, 1, "Device ID=[%d], Release=[%d]",
1257 CONVERT32(STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_CORE_ID), (char *)&demod_str);
1259 demod_ver = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_VERSION_ID);
1260 dprintk(state->verbose, FE_ERROR, 1, "Demodulator Core ID=[%s], Version=[%d]", (char *) &demod_str, demod_ver);
1261 CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC, FEC_CORE_ID_REG), (char *)&fec_str);
1262 fec_ver = STB0899_READ_S2REG(STB0899_S2FEC, FEC_VER_ID_REG);
1263 if (! (chip_id > 0)) {
1264 dprintk(state->verbose, FE_ERROR, 1, "couldn't find a STB 0899");
1268 dprintk(state->verbose, FE_ERROR, 1, "FEC Core ID=[%s], Version=[%d]", (char*) &fec_str, fec_ver);
1273 static const struct dvbfe_info dvbs_info = {
1274 .name = "STB0899 DVB-S",
1275 .delivery = DVBFE_DELSYS_DVBS,
1277 .dvbs.modulation = DVBFE_MOD_QPSK,
1278 .dvbs.fec = DVBFE_FEC_1_2 | DVBFE_FEC_2_3 |
1279 DVBFE_FEC_3_4 | DVBFE_FEC_5_6 |
1283 .frequency_min = 950000,
1284 .frequency_max = 2150000,
1285 .frequency_step = 0,
1286 .symbol_rate_min = 1000000,
1287 .symbol_rate_max = 45000000,
1288 .symbol_rate_tolerance = 0
1291 static const struct dvbfe_info dss_info = {
1292 .name = "STB0899 DSS",
1293 .delivery = DVBFE_DELSYS_DSS,
1295 .dss.modulation = DVBFE_MOD_BPSK | DVBFE_MOD_QPSK,
1296 .dss.fec = DVBFE_FEC_1_2 | DVBFE_FEC_2_3 |
1297 DVBFE_FEC_3_4 | DVBFE_FEC_5_6 |
1301 .frequency_min = 950000,
1302 .frequency_max = 2150000,
1303 .frequency_step = 0,
1304 .symbol_rate_min = 1000000,
1305 .symbol_rate_max = 45000000,
1306 .symbol_rate_tolerance = 0
1309 static const struct dvbfe_info dvbs2_info = {
1310 .name = "STB0899 DVB-S2",
1311 .delivery = DVBFE_DELSYS_DVBS2,
1313 .dvbs2.modulation = DVBFE_MOD_QPSK | DVBFE_MOD_8PSK |
1314 DVBFE_MOD_16APSK | DVBFE_MOD_32APSK,
1316 .dvbs2.fec = DVBFE_FEC_1_4 | DVBFE_FEC_1_3 |
1317 DVBFE_FEC_2_5 | DVBFE_FEC_1_2 |
1318 DVBFE_FEC_3_5 | DVBFE_FEC_2_3 |
1319 DVBFE_FEC_3_4 | DVBFE_FEC_4_5 |
1320 DVBFE_FEC_5_6 | DVBFE_FEC_8_9 |
1324 .frequency_min = 950000,
1325 .frequency_max = 2150000,
1326 .frequency_step = 0,
1327 .symbol_rate_min = 1000000,
1328 .symbol_rate_max = 45000000,
1329 .symbol_rate_tolerance = 0
1332 static int stb0899_get_info(struct dvb_frontend *fe, struct dvbfe_info *fe_info)
1334 struct stb0899_state *state = fe->demodulator_priv;
1336 dprintk(verbose, FE_DEBUG, 1, "Get Info");
1338 state->delsys = fe_info->delivery;
1339 switch (state->delsys) {
1340 case DVBFE_DELSYS_DVBS:
1341 dprintk(verbose, FE_ERROR, 1, "Querying DVB-S info");
1342 memcpy(fe_info, &dvbs_info, sizeof (struct dvbfe_info));
1344 case DVBFE_DELSYS_DSS:
1345 dprintk(verbose, FE_ERROR, 1, "Querying DSS info");
1346 memcpy(fe_info, &dss_info, sizeof (struct dvbfe_info));
1348 case DVBFE_DELSYS_DVBS2:
1349 dprintk(verbose, FE_ERROR, 1, "Querying DVB-S2 info");
1350 memcpy(fe_info, &dvbs2_info, sizeof (struct dvbfe_info));
1353 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1356 dprintk(verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys);
1361 static int stb0899_get_delsys(struct dvb_frontend *fe, enum dvbfe_delsys *fe_delsys)
1363 *fe_delsys = DVBFE_DELSYS_DVBS | DVBFE_DELSYS_DSS | DVBFE_DELSYS_DVBS2;
1368 void stb0899_set_delsys(struct stb0899_state *state)
1373 stop_clk[0] = stb0899_read_reg(state, STB0899_STOPCLK1);
1374 stop_clk[1] = stb0899_read_reg(state, STB0899_STOPCLK2);
1376 switch (state->delsys) {
1377 case DVBFE_DELSYS_DVBS:
1378 dprintk(verbose, FE_DEBUG, 1, "Delivery System -- DVB-S");
1379 /* FECM/Viterbi ON */
1380 reg = stb0899_read_reg(state, STB0899_FECM);
1381 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1382 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1383 stb0899_write_reg(state, STB0899_FECM, reg);
1385 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1386 stb0899_write_reg(state, STB0899_TSULC, 0x40);
1387 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1388 stb0899_write_reg(state, STB0899_TSLPL, 0x12);
1390 reg = stb0899_read_reg(state, STB0899_TSTRES);
1391 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1392 stb0899_write_reg(state, STB0899_TSTRES, reg);
1394 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1395 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1396 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1398 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1399 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1401 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 1);
1402 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 1);
1404 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1406 case DVBFE_DELSYS_DVBS2:
1407 /* FECM/Viterbi OFF */
1408 reg = stb0899_read_reg(state, STB0899_FECM);
1409 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1410 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 0);
1411 stb0899_write_reg(state, STB0899_FECM, reg);
1413 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1414 stb0899_write_reg(state, STB0899_TSULC, 0x42);
1415 stb0899_write_reg(state, STB0899_RSLLC, 0x40);
1416 stb0899_write_reg(state, STB0899_TSLPL, 0x02);
1418 reg = stb0899_read_reg(state, STB0899_TSTRES);
1419 STB0899_SETFIELD_VAL(FRESLDPC, reg, 0);
1420 stb0899_write_reg(state, STB0899_TSTRES, reg);
1422 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1423 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 0);
1424 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 0);
1426 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 0);
1427 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 0);
1429 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 0);
1430 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1432 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 0);
1434 case DVBFE_DELSYS_DSS:
1435 /* FECM/Viterbi ON */
1436 reg = stb0899_read_reg(state, STB0899_FECM);
1437 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 1);
1438 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1439 stb0899_write_reg(state, STB0899_FECM, reg);
1441 stb0899_write_reg(state, STB0899_RSULC, 0xa1);
1442 stb0899_write_reg(state, STB0899_TSULC, 0x61);
1443 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1445 reg = stb0899_read_reg(state, STB0899_TSTRES);
1446 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1447 stb0899_write_reg(state, STB0899_TSTRES, reg);
1449 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1450 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1451 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1453 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1454 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1456 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1458 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1461 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1464 STB0899_SETFIELD_VAL(STOP_CKADCI108, stop_clk[0], 0);
1465 stb0899_write_regs(state, STB0899_STOPCLK1, stop_clk, 2);
1469 * stb0899_set_iterations
1470 * set the LDPC iteration scale function
1472 static void stb0899_set_iterations(struct stb0899_state *state)
1474 struct stb0899_internal *internal = &state->internal;
1475 struct stb0899_config *config = state->config;
1480 iter_scale = 17 * (internal->master_clk / 1000);
1481 iter_scale += 410000;
1482 iter_scale /= (internal->srate / 1000000);
1485 if (iter_scale > config->ldpc_max_iter)
1486 iter_scale = config->ldpc_max_iter;
1488 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, MAX_ITER);
1489 STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale);
1490 stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg);
1493 static enum dvbfe_search stb0899_search(struct dvb_frontend *fe, struct dvbfe_params *params)
1495 struct stb0899_state *state = fe->demodulator_priv;
1496 struct stb0899_params *i_params = &state->params;
1497 struct stb0899_internal *internal = &state->internal;
1499 u32 SearchRange, gain;
1501 switch (state->delsys) {
1502 case DVBFE_DELSYS_DVBS:
1503 dprintk(verbose, FE_ERROR, 1, "set DVB-S params");
1504 i_params->freq = params->frequency;
1505 i_params->srate = params->delsys.dvbs.symbol_rate;
1507 case DVBFE_DELSYS_DSS:
1508 dprintk(verbose, FE_ERROR, 1, "set DSS params");
1509 i_params->freq = params->frequency;
1510 i_params->srate = params->delsys.dss.symbol_rate;
1512 case DVBFE_DELSYS_DVBS2:
1513 dprintk(verbose, FE_ERROR, 1, "set DVB-S2 params");
1514 i_params->freq = params->frequency;
1515 i_params->srate = params->delsys.dvbs2.symbol_rate;
1518 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1521 dprintk(verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys);
1523 SearchRange = 3000000; /* Search Bandwidth (3 Mhz, was initially 10 Mhz) */
1524 // SearchRange = 10000000; /* Search Bandwidth (3 Mhz, was initially 10 Mhz) */
1525 dprintk(verbose, FE_DEBUG, 1, "Frequency=%d, Srate=%d", i_params->freq, i_params->srate);
1526 /* checking Search Range is meaningless for a fixed 3 Mhz */
1527 if (INRANGE(i_params->srate, 1000000, 45000000)) {
1528 dprintk(verbose, FE_DEBUG, 1, "Parameters IN RANGE");
1529 stb0899_set_delsys(state);
1531 if (state->config->tuner_set_rfsiggain) {
1532 if (internal->srate > 15000000)
1533 gain = 8; /* 15Mb < srate < 45Mb, gain = 8dB */
1534 else if (internal->srate > 5000000)
1535 gain = 12; /* 5Mb < srate < 15Mb, gain = 12dB */
1537 gain = 14; /* 1Mb < srate < 5Mb, gain = 14db */
1538 state->config->tuner_set_rfsiggain(fe, gain);
1541 if (i_params->srate <= 5000000)
1542 stb0899_set_mclk(state, 76500000);
1544 stb0899_set_mclk(state, 90000000);
1546 switch (state->delsys) {
1547 case DVBFE_DELSYS_DVBS:
1548 case DVBFE_DELSYS_DSS:
1549 dprintk(verbose, FE_DEBUG, 1, "DVB-S delivery system");
1550 internal->freq = i_params->freq;
1551 internal->srate = i_params->srate;
1553 * search = user search range +
1555 * 2 * Tuner_step_size +
1556 * 10% of the symbol rate
1558 internal->srch_range = SearchRange + 1500000 + (i_params->srate / 5);
1559 internal->derot_percent = 30;
1561 /* What to do for tuners having no bandwidth setup ? */
1562 if (state->config->tuner_set_bandwidth)
1563 state->config->tuner_set_bandwidth(fe, (135 * (stb0899_carr_width(state) + SearchRange)) / 100);
1564 if (state->config->tuner_get_bandwidth)
1565 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1566 /* Set DVB-S1 AGC */
1567 stb0899_write_reg(state, STB0899_AGCRFCFG, 0x11);
1569 /* Run the search algorithm */
1570 dprintk(verbose, FE_DEBUG, 1, "running DVB-S search algo ..");
1571 if (stb0899_dvbs_algo(state) == RANGEOK) {
1573 dprintk(verbose, FE_DEBUG, 1,
1574 "-------------------------------------> DVB-S LOCK !");
1576 // stb0899_write_reg(state, STB0899_ERRCTRL1, 0x3d); /* Viterbi Errors */
1577 // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1578 // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1579 // dprintk(verbose, FE_DEBUG, 1, "VSTATUS=0x%02x", internal->v_status);
1580 // dprintk(verbose, FE_DEBUG, 1, "ERR_CTRL=0x%02x", internal->err_ctrl);
1582 return DVBFE_ALGO_SEARCH_SUCCESS;
1586 return DVBFE_ALGO_SEARCH_FAILED;
1589 case DVBFE_DELSYS_DVBS2:
1590 internal->freq = i_params->freq;
1591 internal->srate = i_params->srate;
1592 internal->srch_range = SearchRange;
1594 if (state->config->tuner_set_bandwidth)
1595 state->config->tuner_set_bandwidth(fe, (135 * (stb0899_carr_width(state) + SearchRange)) / 100);
1596 if (state->config->tuner_get_bandwidth)
1597 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1599 // pParams->SpectralInv = pSearch->IQ_Inversion;
1601 /* Set DVB-S2 AGC */
1602 stb0899_write_reg(state, STB0899_AGCRFCFG, 0x1c);
1604 /* Set IterScale =f(MCLK,SYMB) */
1605 stb0899_set_iterations(state);
1607 /* Run the search algorithm */
1608 dprintk(verbose, FE_DEBUG, 1, "running DVB-S2 search algo ..");
1609 if (stb0899_dvbs2_algo(state) == DVBS2_FEC_LOCK) {
1611 dprintk(verbose, FE_DEBUG, 1,
1612 "-------------------------------------> DVB-S2 LOCK !");
1614 // stb0899_write_reg(state, STB0899_ERRCTRL1, 0xb6); /* Packet Errors */
1615 // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1616 // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1618 return DVBFE_ALGO_SEARCH_SUCCESS;
1622 return DVBFE_ALGO_SEARCH_FAILED;
1626 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1627 return DVBFE_ALGO_SEARCH_INVALID;
1631 return DVBFE_ALGO_SEARCH_ERROR;
1634 static enum stb0899_status stb0899_track_carrier(struct stb0899_state *state)
1638 reg = stb0899_read_reg(state, STB0899_DSTATUS);
1639 dprintk(verbose, FE_DEBUG, 1, "--------------------> STB0899_DSTATUS=[0x%02x]", reg);
1640 if (STB0899_GETFIELD(CARRIER_FOUND, reg)) {
1641 dprintk(verbose, FE_DEBUG, 1, "-------------> CARRIEROK !");
1644 dprintk(verbose, FE_DEBUG, 1, "-------------> NOCARRIER !");
1651 static enum stb0899_status stb0899_get_ifagc(struct stb0899_state *state)
1655 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STATUS);
1656 dprintk(verbose, FE_DEBUG, 1, "DMD_STATUS=[0x%02x]", reg);
1657 if (STB0899_GETFIELD(IF_AGC_LOCK, reg)) {
1658 dprintk(verbose, FE_DEBUG, 1, "------------->IF AGC LOCKED !");
1661 dprintk(verbose, FE_DEBUG, 1, "------------->IF AGC LOCK LOST !");
1668 static int stb0899_get_s1fec(struct stb0899_internal *internal, enum dvbfe_fec *fec)
1670 switch (internal->fecrate) {
1671 case STB0899_FEC_1_2:
1672 *fec = DVBFE_FEC_1_2;
1674 case STB0899_FEC_2_3:
1675 *fec = DVBFE_FEC_2_3;
1677 case STB0899_FEC_3_4:
1678 *fec = DVBFE_FEC_3_4;
1680 case STB0899_FEC_5_6:
1681 *fec = DVBFE_FEC_5_6;
1683 case STB0899_FEC_6_7:
1684 *fec = DVBFE_FEC_6_7;
1686 case STB0899_FEC_7_8:
1687 *fec = DVBFE_FEC_7_8;
1696 static int stb0899_get_modcod(struct stb0899_internal *internal, struct dvbs2_params *params)
1698 switch (internal->modcod) {
1699 case STB0899_DUMMY_PLF:
1700 params->modulation = DVBFE_MOD_NONE;
1701 params->fec = DVBFE_FEC_NONE;
1703 case STB0899_QPSK_14:
1704 params->modulation = DVBFE_MOD_QPSK;
1705 params->fec = DVBFE_FEC_1_4;
1707 case STB0899_QPSK_13:
1708 params->modulation = DVBFE_MOD_QPSK;
1709 params->fec = DVBFE_FEC_1_3;
1711 case STB0899_QPSK_25:
1712 params->modulation = DVBFE_MOD_QPSK;
1713 params->fec = DVBFE_FEC_2_5;
1715 case STB0899_QPSK_12:
1716 params->modulation = DVBFE_MOD_QPSK;
1717 params->fec = DVBFE_FEC_1_2;
1719 case STB0899_QPSK_35:
1720 params->modulation = DVBFE_MOD_QPSK;
1721 params->fec = DVBFE_FEC_3_5;
1723 case STB0899_QPSK_23:
1724 params->modulation = DVBFE_MOD_QPSK;
1725 params->fec = DVBFE_FEC_2_3;
1727 case STB0899_QPSK_34:
1728 params->modulation = DVBFE_MOD_QPSK;
1729 params->fec = DVBFE_FEC_3_4;
1731 case STB0899_QPSK_45:
1732 params->modulation = DVBFE_MOD_QPSK;
1733 params->fec = DVBFE_FEC_4_5;
1735 case STB0899_QPSK_56:
1736 params->modulation = DVBFE_MOD_QPSK;
1737 params->fec = DVBFE_FEC_5_6;
1739 case STB0899_QPSK_89:
1740 params->modulation = DVBFE_MOD_QPSK;
1741 params->fec = DVBFE_FEC_8_9;
1743 case STB0899_QPSK_910:
1744 params->modulation = DVBFE_MOD_QPSK;
1745 params->fec = DVBFE_FEC_9_10;
1747 case STB0899_8PSK_35:
1748 params->modulation = DVBFE_MOD_8PSK;
1749 params->fec = DVBFE_FEC_3_5;
1751 case STB0899_8PSK_23:
1752 params->modulation = DVBFE_MOD_8PSK;
1753 params->fec = DVBFE_FEC_2_3;
1755 case STB0899_8PSK_34:
1756 params->modulation = DVBFE_MOD_8PSK;
1757 params->fec = DVBFE_FEC_3_4;
1759 case STB0899_8PSK_56:
1760 params->modulation = DVBFE_MOD_8PSK;
1761 params->fec = DVBFE_FEC_5_6;
1763 case STB0899_8PSK_89:
1764 params->modulation = DVBFE_MOD_8PSK;
1765 params->fec = DVBFE_FEC_8_9;
1767 case STB0899_8PSK_910:
1768 params->modulation = DVBFE_MOD_8PSK;
1769 params->fec = DVBFE_FEC_9_10;
1771 case STB0899_16APSK_23:
1772 params->modulation = DVBFE_MOD_16APSK;
1773 params->fec = DVBFE_FEC_2_3;
1775 case STB0899_16APSK_34:
1776 params->modulation = DVBFE_MOD_16APSK;
1777 params->fec = DVBFE_FEC_3_4;
1779 case STB0899_16APSK_45:
1780 params->modulation = DVBFE_MOD_16APSK;
1781 params->fec = DVBFE_FEC_4_5;
1783 case STB0899_16APSK_56:
1784 params->modulation = DVBFE_MOD_16APSK;
1785 params->fec = DVBFE_FEC_5_6;
1787 case STB0899_16APSK_89:
1788 params->modulation = DVBFE_MOD_16APSK;
1789 params->fec = DVBFE_FEC_8_9;
1791 case STB0899_16APSK_910:
1792 params->modulation = DVBFE_MOD_16APSK;
1793 params->fec = DVBFE_FEC_9_10;
1795 case STB0899_32APSK_34:
1796 params->modulation = DVBFE_MOD_32APSK;
1797 params->fec = DVBFE_FEC_3_4;
1799 case STB0899_32APSK_45:
1800 params->modulation = DVBFE_MOD_32APSK;
1801 params->fec = DVBFE_FEC_4_5;
1803 case STB0899_32APSK_56:
1804 params->modulation = DVBFE_MOD_32APSK;
1805 params->fec = DVBFE_FEC_5_6;
1807 case STB0899_32APSK_89:
1808 params->modulation = DVBFE_MOD_32APSK;
1809 params->fec = DVBFE_FEC_8_9;
1811 case STB0899_32APSK_910:
1812 params->modulation = DVBFE_MOD_32APSK;
1813 params->fec = DVBFE_FEC_9_10;
1824 * periodically check the signal level against a specified
1825 * threshold level and perform derotator centering.
1826 * called once we have a lock from a succesful search
1829 * Will be called periodically called to maintain the
1832 * Will be used to get parameters as well as info from
1833 * the decoded baseband header
1835 * Once a new lock has established, the internal state
1836 * frequency (internal->freq) is updated
1838 static int stb0899_track(struct dvb_frontend *fe, struct dvbfe_params *params, int *delay)
1842 struct stb0899_state *state = fe->demodulator_priv;
1843 struct stb0899_internal *internal = &state->internal;
1845 lock_lost = STB0899_READ_S2REG(STB0899_S2DEMOD, LOCK_LOST);
1846 dprintk(verbose, FE_DEBUG, 1, "Lock Lost=[0x%02x]\n", lock_lost);
1847 if (STB0899_GETFIELD(LOCK_LOST, lock_lost))
1848 dprintk(verbose, FE_ERROR, 1, "Demodulator LOST LOCK !\n");
1855 static int stb0899_get_params(struct dvb_frontend *fe, struct dvbfe_params *params)
1857 struct stb0899_state *state = fe->demodulator_priv;
1858 struct stb0899_internal *internal = &state->internal;
1860 params->frequency = internal->freq;
1861 params->inversion = internal->inversion;
1862 params->delivery = state->delsys;
1863 switch (state->delsys) {
1864 case DVBFE_DELSYS_DVBS:
1865 dprintk(verbose, FE_DEBUG, 1, "Get DVB-S params");
1866 params->delsys.dvbs.symbol_rate = internal->srate;
1867 params->delsys.dvbs.modulation = DVBFE_MOD_QPSK;
1869 case DVBFE_DELSYS_DSS:
1870 dprintk(verbose, FE_DEBUG, 1, "Get DSS params");
1871 params->delsys.dss.symbol_rate = internal->srate;
1872 params->delsys.dss.modulation = DVBFE_MOD_QPSK;
1874 case DVBFE_DELSYS_DVBS2:
1875 dprintk(verbose, FE_DEBUG, 1, "Get DVB-S2 params");
1876 params->delsys.dvbs2.symbol_rate = internal->srate;
1879 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1886 static enum dvbfe_algo stb0899_frontend_algo(struct dvb_frontend *fe)
1888 return DVBFE_ALGO_CUSTOM;
1891 static struct dvb_frontend_ops stb0899_ops = {
1894 .name = "STB0899 Multistandard",
1897 .release = stb0899_release,
1898 .init = stb0899_init,
1899 .sleep = stb0899_sleep,
1900 // .wakeup = stb0899_wakeup,
1902 .i2c_gate_ctrl = stb0899_i2c_gate_ctrl,
1903 .get_info = stb0899_get_info,
1904 .get_delsys = stb0899_get_delsys,
1906 .get_frontend_algo = stb0899_frontend_algo,
1907 .search = stb0899_search,
1908 .track = stb0899_track,
1909 .get_params = stb0899_get_params,
1911 .read_status = stb0899_read_status,
1912 .read_snr = stb0899_read_snr,
1913 .read_signal_strength = stb0899_read_signal_strength,
1914 .read_status = stb0899_read_status,
1915 .read_ber = stb0899_read_ber,
1917 .set_voltage = stb0899_set_voltage,
1918 .set_tone = stb0899_set_tone,
1920 .diseqc_send_master_cmd = stb0899_send_diseqc_msg,
1921 .diseqc_recv_slave_reply = stb0899_recv_slave_reply,
1922 .diseqc_send_burst = stb0899_send_diseqc_burst,
1925 struct dvb_frontend *stb0899_attach(struct stb0899_config *config, struct i2c_adapter *i2c)
1927 struct stb0899_state *state = NULL;
1928 enum stb0899_inversion inversion;
1930 state = kzalloc(sizeof (struct stb0899_state), GFP_KERNEL);
1934 inversion = config->inversion;
1935 state->verbose = verbose;
1936 state->config = config;
1938 state->frontend.ops = stb0899_ops;
1939 state->frontend.demodulator_priv = state;
1940 state->internal.inversion = inversion;
1942 stb0899_wakeup(&state->frontend);
1943 if (stb0899_get_dev_id(state) == -ENODEV) {
1944 printk("%s: Exiting .. !\n", __func__);
1948 printk("%s: Attaching STB0899 \n", __func__);
1949 return &state->frontend;
1955 EXPORT_SYMBOL(stb0899_attach);
1956 MODULE_PARM_DESC(verbose, "Set Verbosity level");
1957 MODULE_AUTHOR("Manu Abraham");
1958 MODULE_DESCRIPTION("STB0899 Multi-Std frontend");
1959 MODULE_LICENSE("GPL");