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, u32 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 = 0, 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 int stb0899_postproc(struct stb0899_state *state, u8 ctl, int enable)
585 struct stb0899_config *config = state->config;
586 const struct stb0899_postproc *postproc = config->postproc;
588 /* post process event */
591 if (postproc[ctl].level == STB0899_GPIOPULLUP)
592 stb0899_write_reg(state, postproc[ctl].gpio, 0x02);
594 stb0899_write_reg(state, postproc[ctl].gpio, 0x82);
596 if (postproc[ctl].level == STB0899_GPIOPULLUP)
597 stb0899_write_reg(state, postproc[ctl].gpio, 0x82);
599 stb0899_write_reg(state, postproc[ctl].gpio, 0x02);
605 static void stb0899_release(struct dvb_frontend *fe)
607 struct stb0899_state *state = fe->demodulator_priv;
609 dprintk(verbose, FE_DEBUG, 1, "Release Frontend");
610 /* post process event */
611 stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0);
619 static int stb0899_get_alpha(struct stb0899_state *state)
623 mode_coeff = stb0899_read_reg(state, STB0899_DEMOD);
625 if (STB0899_GETFIELD(MODECOEFF, mode_coeff) == 1)
634 static void stb0899_init_calc(struct stb0899_state *state)
636 struct stb0899_internal *internal = &state->internal;
642 /* Read registers (in burst mode) */
643 agc1cn = stb0899_read_reg(state, STB0899_AGC1CN);
644 stb0899_read_regs(state, STB0899_AGC1REF, agc, 2); /* AGC1R and AGC2O */
646 /* Initial calculations */
647 master_clk = stb0899_get_mclk(state);
648 internal->t_agc1 = 0;
649 internal->t_agc2 = 0;
650 internal->master_clk = master_clk;
651 internal->mclk = master_clk / 65536L;
652 internal->rolloff = stb0899_get_alpha(state);
654 /* DVBS2 Initial calculations */
655 /* Set AGC value to the middle */
656 internal->agc_gain = 8154;
657 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_CNTRL);
658 STB0899_SETFIELD_VAL(IF_GAIN_INIT, reg, internal->agc_gain);
659 stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_IF_AGC_CNTRL, STB0899_OFF0_IF_AGC_CNTRL, reg);
661 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, RRC_ALPHA);
662 internal->rrc_alpha = STB0899_GETFIELD(RRC_ALPHA, reg);
664 internal->center_freq = 0;
665 internal->av_frame_coarse = 10;
666 internal->av_frame_fine = 20;
667 internal->step_size = 2;
669 if ((pParams->SpectralInv == FE_IQ_NORMAL) || (pParams->SpectralInv == FE_IQ_AUTO))
670 pParams->IQLocked = 0;
672 pParams->IQLocked = 1;
676 static int stb0899_wait_diseqc_fifo_empty(struct stb0899_state *state, int timeout)
679 unsigned long start = jiffies;
682 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
683 if (!STB0899_GETFIELD(FIFOFULL, reg))
685 if ((jiffies - start) > timeout) {
686 dprintk(verbose, FE_ERROR, 1, "timed out !!");
694 static int stb0899_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
696 struct stb0899_state *state = fe->demodulator_priv;
699 if (cmd->msg_len > 8)
702 /* enable FIFO precharge */
703 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
704 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 1);
705 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
706 for (i = 0; i < cmd->msg_len; i++) {
707 /* wait for FIFO empty */
708 if (stb0899_wait_diseqc_fifo_empty(state, 10) < 0)
711 stb0899_write_reg(state, STB0899_DISFIFO, cmd->msg[i]);
713 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
714 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0);
715 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
720 static int stb0899_wait_diseqc_rxidle(struct stb0899_state *state, int timeout)
723 unsigned long start = jiffies;
725 while (!STB0899_GETFIELD(RXEND, reg)) {
726 reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
727 if (jiffies - start > timeout) {
728 dprintk(verbose, FE_ERROR, 1, "timed out!!");
737 static int stb0899_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
739 struct stb0899_state *state = fe->demodulator_priv;
740 u8 reg, length = 0, i;
743 if (stb0899_wait_diseqc_rxidle(state, 100) < 0)
746 reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
747 if (STB0899_GETFIELD(RXEND, reg)) {
749 reg = stb0899_read_reg(state, STB0899_DISRX_ST1);
750 length = STB0899_GETFIELD(FIFOBYTENBR, reg);
752 if (length > sizeof (reply->msg)) {
756 reply->msg_len = length;
759 for (i = 0; i < length; i++)
760 reply->msg[i] = stb0899_read_reg(state, STB0899_DISFIFO);
769 static int stb0899_wait_diseqc_txidle(struct stb0899_state *state, int timeout)
772 unsigned long start = jiffies;
774 while (!STB0899_GETFIELD(TXIDLE, reg)) {
775 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
776 if (jiffies - start > timeout) {
777 dprintk(verbose, FE_ERROR, 1, "timed out!!");
785 static int stb0899_send_diseqc_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
787 struct stb0899_state *state = fe->demodulator_priv;
790 /* wait for diseqc idle */
791 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
794 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
796 /* set to burst mode */
797 STB0899_SETFIELD_VAL(DISEQCMODE, reg, 0x02);
798 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x01);
799 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
803 stb0899_write_reg(state, STB0899_DISFIFO, 0x00);
807 stb0899_write_reg(state, STB0899_DISFIFO, 0xff);
810 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
811 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x00);
812 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
813 /* wait for diseqc idle */
814 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
818 stb0899_write_reg(state, STB0899_DISCNTRL1, old_state);
823 static int stb0899_diseqc_init(struct stb0899_state *state)
825 struct dvb_diseqc_master_cmd tx_data;
826 struct dvb_diseqc_slave_reply rx_data;
828 u8 f22_tx, f22_rx, reg;
830 u32 mclk, tx_freq = 22000, count = 0, i;
832 u32 trial = 0; /* try max = 2 (try 20khz and 17.5 khz) */
833 u32 ret_1 = 0; /* 20 Khz status */
834 u32 ret_2 = 0; /* 17.5 Khz status */
836 tx_data.msg[0] = 0xe2;
838 reg = stb0899_read_reg(state, STB0899_DISCNTRL2);
839 STB0899_SETFIELD_VAL(ONECHIP_TRX, reg, 0);
840 stb0899_write_reg(state, STB0899_DISCNTRL2, reg);
843 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
844 STB0899_SETFIELD_VAL(DISEQCRESET, reg, 1);
845 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
847 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
848 STB0899_SETFIELD_VAL(DISEQCRESET, reg, 0);
849 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
851 mclk = stb0899_get_mclk(state);
852 f22_tx = mclk / (tx_freq * 32);
853 stb0899_write_reg(state, STB0899_DISF22, f22_tx); /* DiSEqC Tx freq */
854 state->rx_freq = 20000;
855 f22_rx = mclk / (state->rx_freq * 32);
860 static int stb0899_sleep(struct dvb_frontend *fe)
862 struct stb0899_state *state = fe->demodulator_priv;
865 dprintk(verbose, FE_DEBUG, 1, "Going to Sleep .. (Really tired .. :-))");
866 /* post process event */
867 stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0);
872 static int stb0899_wakeup(struct dvb_frontend *fe)
875 struct stb0899_state *state = fe->demodulator_priv;
877 if ((rc = stb0899_write_reg(state, STB0899_SYNTCTRL, STB0899_SELOSCI)))
879 /* Activate all clocks; DVB-S2 registers are inaccessible otherwise. */
880 if ((rc = stb0899_write_reg(state, STB0899_STOPCLK1, 0x00)))
882 if ((rc = stb0899_write_reg(state, STB0899_STOPCLK2, 0x00)))
885 /* post process event */
886 stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 1);
891 static int stb0899_init(struct dvb_frontend *fe)
894 struct stb0899_state *state = fe->demodulator_priv;
895 struct stb0899_config *config = state->config;
897 dprintk(verbose, FE_DEBUG, 1, "Initializing STB0899 ... ");
898 // mutex_init(&state->search_lock);
901 dprintk(verbose, FE_DEBUG, 1, "init device");
902 for (i = 0; config->init_dev[i].address != 0xffff; i++)
903 stb0899_write_reg(state, config->init_dev[i].address, config->init_dev[i].data);
905 dprintk(verbose, FE_DEBUG, 1, "init S2 demod");
907 for (i = 0; config->init_s2_demod[i].offset != 0xffff; i++)
908 stb0899_write_s2reg(state, STB0899_S2DEMOD,
909 config->init_s2_demod[i].base_address,
910 config->init_s2_demod[i].offset,
911 config->init_s2_demod[i].data);
913 dprintk(verbose, FE_DEBUG, 1, "init S1 demod");
915 for (i = 0; config->init_s1_demod[i].address != 0xffff; i++)
916 stb0899_write_reg(state, config->init_s1_demod[i].address, config->init_s1_demod[i].data);
918 dprintk(verbose, FE_DEBUG, 1, "init S2 FEC");
920 for (i = 0; config->init_s2_fec[i].offset != 0xffff; i++)
921 stb0899_write_s2reg(state, STB0899_S2FEC,
922 config->init_s2_fec[i].base_address,
923 config->init_s2_fec[i].offset,
924 config->init_s2_fec[i].data);
926 dprintk(verbose, FE_DEBUG, 1, "init TST");
928 for (i = 0; config->init_tst[i].address != 0xffff; i++)
929 stb0899_write_reg(state, config->init_tst[i].address, config->init_tst[i].data);
931 stb0899_init_calc(state);
932 stb0899_diseqc_init(state);
937 static int stb0899_table_lookup(const struct stb0899_tab *tab, int max, int val)
942 if (val < tab[min].read)
944 else if (val >= tab[max].read)
947 while ((max - min) > 1) {
948 med = (max + min) / 2;
949 if (val >= tab[min].read && val < tab[med].read)
954 res = ((val - tab[min].read) *
955 (tab[max].real - tab[min].real) /
956 (tab[max].read - tab[min].read)) +
963 static int stb0899_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
965 struct stb0899_state *state = fe->demodulator_priv;
966 struct stb0899_internal *internal = &state->internal;
970 switch (state->delsys) {
971 case DVBFE_DELSYS_DVBS:
972 case DVBFE_DELSYS_DSS:
973 if (internal->lock) {
974 reg = stb0899_read_reg(state, STB0899_VSTATUS);
975 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
977 reg = stb0899_read_reg(state, STB0899_AGCIQIN);
978 val = (s32)(s8)STB0899_GETFIELD(AGCIQVALUE, reg);
980 *strength = stb0899_table_lookup(stb0899_dvbsrf_tab, ARRAY_SIZE(stb0899_dvbsrf_tab) - 1, val);
982 dprintk(verbose, FE_DEBUG, 1, "AGCIQVALUE = 0x%02x, C = %d * 0.1 dBm",
983 val & 0xff, *strength);
987 case DVBFE_DELSYS_DVBS2:
988 if (internal->lock) {
989 reg = STB0899_READ_S2REG(STB0899_DEMOD, IF_AGC_GAIN);
990 val = STB0899_GETFIELD(IF_AGC_GAIN, reg);
992 *strength = stb0899_table_lookup(stb0899_dvbs2rf_tab, ARRAY_SIZE(stb0899_dvbs2rf_tab) - 1, val);
994 dprintk(verbose, FE_DEBUG, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm",
995 val & 0x3fff, *strength);
999 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
1006 static int stb0899_read_snr(struct dvb_frontend *fe, u16 *snr)
1008 struct stb0899_state *state = fe->demodulator_priv;
1009 struct stb0899_internal *internal = &state->internal;
1011 unsigned int val, quant, quantn = -1, est, estn = -1;
1015 reg = stb0899_read_reg(state, STB0899_VSTATUS);
1016 switch (state->delsys) {
1017 case DVBFE_DELSYS_DVBS:
1018 case DVBFE_DELSYS_DSS:
1019 if (internal->lock) {
1020 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
1022 stb0899_read_regs(state, STB0899_NIRM, buf, 2);
1023 val = MAKEWORD16(buf[0], buf[1]);
1025 *snr = stb0899_table_lookup(stb0899_cn_tab, ARRAY_SIZE(stb0899_cn_tab) - 1, val);
1026 dprintk(verbose, FE_DEBUG, 1, "NIR = 0x%02x%02x = %u, C/N = %d * 0.1 dBm\n",
1027 buf[0], buf[1], val, *snr);
1031 case DVBFE_DELSYS_DVBS2:
1032 if (internal->lock) {
1033 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_CNTRL1);
1034 quant = STB0899_GETFIELD(UWP_ESN0_QUANT, reg);
1035 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_STAT2);
1036 est = STB0899_GETFIELD(ESN0_EST, reg);
1038 val = 301; /* C/N = 30.1 dB */
1040 val = 270; /* C/N = 27.0 dB */
1042 /* quantn = 100 * log(quant^2) */
1043 quantn = stb0899_table_lookup(stb0899_quant_tab, ARRAY_SIZE(stb0899_quant_tab) - 1, quant * 100);
1044 /* estn = 100 * log(est) */
1045 estn = stb0899_table_lookup(stb0899_est_tab, ARRAY_SIZE(stb0899_est_tab) - 1, est);
1046 /* snr(dBm/10) = -10*(log(est)-log(quant^2)) => snr(dBm/10) = (100*log(quant^2)-100*log(est))/10 */
1047 val = (quantn - estn) / 10;
1050 dprintk(verbose, FE_DEBUG, 1, "Es/N0 quant = %d (%d) estimate = %u (%d), C/N = %d * 0.1 dBm",
1051 quant, quantn, est, estn, val);
1055 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
1062 static int stb0899_read_status(struct dvb_frontend *fe, enum fe_status *status)
1064 struct stb0899_state *state = fe->demodulator_priv;
1065 struct stb0899_internal *internal = &state->internal;
1069 switch (state->delsys) {
1070 case DVBFE_DELSYS_DVBS:
1071 case DVBFE_DELSYS_DSS:
1072 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S/DSS");
1073 if (internal->lock) {
1074 reg = stb0899_read_reg(state, STB0899_VSTATUS);
1075 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
1076 dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_CARRIER | FE_HAS_LOCK");
1077 *status |= FE_HAS_CARRIER | FE_HAS_LOCK;
1079 reg = stb0899_read_reg(state, STB0899_PLPARM);
1080 if (STB0899_GETFIELD(VITCURPUN, reg)) {
1081 dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_VITERBI | FE_HAS_SYNC");
1082 *status |= FE_HAS_VITERBI | FE_HAS_SYNC;
1083 /* post process event */
1084 stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1);
1089 case DVBFE_DELSYS_DVBS2:
1090 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S2");
1091 if (internal->lock) {
1092 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STAT2);
1093 if (STB0899_GETFIELD(UWP_LOCK, reg) && STB0899_GETFIELD(CSM_LOCK, reg)) {
1094 *status |= FE_HAS_CARRIER;
1095 dprintk(state->verbose, FE_DEBUG, 1,
1096 "UWP & CSM Lock ! ---> DVB-S2 FE_HAS_CARRIER");
1098 reg = stb0899_read_reg(state, STB0899_CFGPDELSTATUS1);
1099 if (STB0899_GETFIELD(CFGPDELSTATUS_LOCK, reg)) {
1100 *status |= FE_HAS_LOCK;
1101 dprintk(state->verbose, FE_DEBUG, 1,
1102 "Packet Delineator Locked ! -----> DVB-S2 FE_HAS_LOCK");
1105 if (STB0899_GETFIELD(CONTINUOUS_STREAM, reg)) {
1106 *status |= FE_HAS_VITERBI;
1107 dprintk(state->verbose, FE_DEBUG, 1,
1108 "Packet Delineator found VITERBI ! -----> DVB-S2 FE_HAS_VITERBI");
1110 if (STB0899_GETFIELD(ACCEPTED_STREAM, reg)) {
1111 *status |= FE_HAS_SYNC;
1112 dprintk(state->verbose, FE_DEBUG, 1,
1113 "Packet Delineator found SYNC ! -----> DVB-S2 FE_HAS_SYNC");
1114 /* post process event */
1115 stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1);
1121 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
1129 * viterbi error for DVB-S/DSS
1130 * packet error for DVB-S2
1131 * Bit Error Rate or Packet Error Rate * 10 ^ 7
1133 static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber)
1135 struct stb0899_state *state = fe->demodulator_priv;
1136 struct stb0899_internal *internal = &state->internal;
1143 switch (state->delsys) {
1144 case DVBFE_DELSYS_DVBS:
1145 case DVBFE_DELSYS_DSS:
1146 if (internal->lock) {
1147 /* average 5 BER values */
1148 for (i = 0; i < 5; i++) {
1150 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1151 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1152 *ber += MAKEWORD16(msb, lsb);
1156 if (STB0899_GETFIELD(VSTATUS_PRFVIT, internal->v_status)) {
1159 /* ber = ber * 10 ^ 7 */
1160 *ber /= (-1 + (1 << (2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1165 case DVBFE_DELSYS_DVBS2:
1166 if (internal->lock) {
1167 /* Average 5 PER values */
1168 for (i = 0; i < 5; i++) {
1170 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1171 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1172 *ber += MAKEWORD16(msb, lsb);
1174 /* ber = ber * 10 ^ 7 */
1176 *ber /= (-1 + (1 << (4 + 2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1180 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
1187 static int stb0899_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
1189 struct stb0899_state *state = fe->demodulator_priv;
1192 case SEC_VOLTAGE_13:
1193 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1194 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1195 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x00);
1197 case SEC_VOLTAGE_18:
1198 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x02);
1199 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1200 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1202 case SEC_VOLTAGE_OFF:
1203 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1204 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x82);
1205 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1214 static int stb0899_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
1216 struct stb0899_state *state = fe->demodulator_priv;
1217 struct stb0899_internal *internal = &state->internal;
1221 /* wait for diseqc idle */
1222 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
1227 div = (internal->master_clk / 100) / 5632;
1228 div = (div + 5) / 10;
1229 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x66);
1230 reg = stb0899_read_reg(state, STB0899_ACRPRESC);
1231 STB0899_SETFIELD_VAL(ACRPRESC, reg, 0x03);
1232 stb0899_write_reg(state, STB0899_ACRPRESC, reg);
1233 stb0899_write_reg(state, STB0899_ACRDIV1, div);
1236 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x20);
1244 static int stb0899_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
1247 struct stb0899_state *state = fe->demodulator_priv;
1249 i2c_stat = stb0899_read_reg(state, STB0899_I2CRPT);
1254 dprintk(state->verbose, FE_DEBUG, 1, "Enabling I2C Repeater ...");
1255 i2c_stat |= STB0899_I2CTON;
1256 if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
1261 dprintk(state->verbose, FE_ERROR, 1, "I2C Repeater enable failed");
1266 static inline void CONVERT32(u32 x, char *str)
1268 *str++ = (x >> 24) & 0xff;
1269 *str++ = (x >> 16) & 0xff;
1270 *str++ = (x >> 8) & 0xff;
1271 *str++ = (x >> 0) & 0xff;
1275 int stb0899_get_dev_id(struct stb0899_state *state)
1277 u8 chip_id, release;
1279 u32 demod_ver = 0, fec_ver = 0;
1280 char demod_str[5] = { 0 };
1281 char fec_str[5] = { 0 };
1283 id = stb0899_read_reg(state, STB0899_DEV_ID);
1284 dprintk(state->verbose, FE_DEBUG, 1, "ID reg=[0x%02x]", id);
1285 chip_id = STB0899_GETFIELD(CHIP_ID, id);
1286 release = STB0899_GETFIELD(CHIP_REL, id);
1288 dprintk(state->verbose, FE_ERROR, 1, "Device ID=[%d], Release=[%d]",
1291 CONVERT32(STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_CORE_ID), (char *)&demod_str);
1293 demod_ver = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_VERSION_ID);
1294 dprintk(state->verbose, FE_ERROR, 1, "Demodulator Core ID=[%s], Version=[%d]", (char *) &demod_str, demod_ver);
1295 CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC, FEC_CORE_ID_REG), (char *)&fec_str);
1296 fec_ver = STB0899_READ_S2REG(STB0899_S2FEC, FEC_VER_ID_REG);
1297 if (! (chip_id > 0)) {
1298 dprintk(state->verbose, FE_ERROR, 1, "couldn't find a STB 0899");
1302 dprintk(state->verbose, FE_ERROR, 1, "FEC Core ID=[%s], Version=[%d]", (char*) &fec_str, fec_ver);
1307 static const struct dvbfe_info dvbs_info = {
1308 .name = "STB0899 DVB-S",
1309 .delivery = DVBFE_DELSYS_DVBS,
1311 .dvbs.modulation = DVBFE_MOD_QPSK,
1312 .dvbs.fec = DVBFE_FEC_1_2 | DVBFE_FEC_2_3 |
1313 DVBFE_FEC_3_4 | DVBFE_FEC_5_6 |
1317 .frequency_min = 950000,
1318 .frequency_max = 2150000,
1319 .frequency_step = 0,
1320 .symbol_rate_min = 1000000,
1321 .symbol_rate_max = 45000000,
1322 .symbol_rate_tolerance = 0
1325 static const struct dvbfe_info dss_info = {
1326 .name = "STB0899 DSS",
1327 .delivery = DVBFE_DELSYS_DSS,
1329 .dss.modulation = DVBFE_MOD_BPSK | DVBFE_MOD_QPSK,
1330 .dss.fec = DVBFE_FEC_1_2 | DVBFE_FEC_2_3 |
1331 DVBFE_FEC_3_4 | DVBFE_FEC_5_6 |
1335 .frequency_min = 950000,
1336 .frequency_max = 2150000,
1337 .frequency_step = 0,
1338 .symbol_rate_min = 1000000,
1339 .symbol_rate_max = 45000000,
1340 .symbol_rate_tolerance = 0
1343 static const struct dvbfe_info dvbs2_info = {
1344 .name = "STB0899 DVB-S2",
1345 .delivery = DVBFE_DELSYS_DVBS2,
1347 .dvbs2.modulation = DVBFE_MOD_QPSK | DVBFE_MOD_8PSK |
1348 DVBFE_MOD_16APSK | DVBFE_MOD_32APSK,
1350 .dvbs2.fec = DVBFE_FEC_1_4 | DVBFE_FEC_1_3 |
1351 DVBFE_FEC_2_5 | DVBFE_FEC_1_2 |
1352 DVBFE_FEC_3_5 | DVBFE_FEC_2_3 |
1353 DVBFE_FEC_3_4 | DVBFE_FEC_4_5 |
1354 DVBFE_FEC_5_6 | DVBFE_FEC_8_9 |
1358 .frequency_min = 950000,
1359 .frequency_max = 2150000,
1360 .frequency_step = 0,
1361 .symbol_rate_min = 1000000,
1362 .symbol_rate_max = 45000000,
1363 .symbol_rate_tolerance = 0
1366 static int stb0899_get_info(struct dvb_frontend *fe, struct dvbfe_info *fe_info)
1368 struct stb0899_state *state = fe->demodulator_priv;
1370 dprintk(verbose, FE_DEBUG, 1, "Get Info");
1372 state->delsys = fe_info->delivery;
1373 switch (state->delsys) {
1374 case DVBFE_DELSYS_DVBS:
1375 dprintk(verbose, FE_ERROR, 1, "Querying DVB-S info");
1376 memcpy(fe_info, &dvbs_info, sizeof (struct dvbfe_info));
1378 case DVBFE_DELSYS_DSS:
1379 dprintk(verbose, FE_ERROR, 1, "Querying DSS info");
1380 memcpy(fe_info, &dss_info, sizeof (struct dvbfe_info));
1382 case DVBFE_DELSYS_DVBS2:
1383 dprintk(verbose, FE_ERROR, 1, "Querying DVB-S2 info");
1384 memcpy(fe_info, &dvbs2_info, sizeof (struct dvbfe_info));
1387 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1390 dprintk(verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys);
1395 static int stb0899_get_delsys(struct dvb_frontend *fe, enum dvbfe_delsys *fe_delsys)
1397 *fe_delsys = DVBFE_DELSYS_DVBS | DVBFE_DELSYS_DSS | DVBFE_DELSYS_DVBS2;
1402 void stb0899_set_delsys(struct stb0899_state *state)
1407 stop_clk[0] = stb0899_read_reg(state, STB0899_STOPCLK1);
1408 stop_clk[1] = stb0899_read_reg(state, STB0899_STOPCLK2);
1410 switch (state->delsys) {
1411 case DVBFE_DELSYS_DVBS:
1412 dprintk(verbose, FE_DEBUG, 1, "Delivery System -- DVB-S");
1413 /* FECM/Viterbi ON */
1414 reg = stb0899_read_reg(state, STB0899_FECM);
1415 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1416 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1417 stb0899_write_reg(state, STB0899_FECM, reg);
1419 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1420 stb0899_write_reg(state, STB0899_TSULC, 0x40);
1421 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1422 stb0899_write_reg(state, STB0899_TSLPL, 0x12);
1424 reg = stb0899_read_reg(state, STB0899_TSTRES);
1425 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1426 stb0899_write_reg(state, STB0899_TSTRES, reg);
1428 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1429 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1430 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1432 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1433 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1435 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 1);
1436 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1438 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1440 case DVBFE_DELSYS_DVBS2:
1441 /* FECM/Viterbi OFF */
1442 reg = stb0899_read_reg(state, STB0899_FECM);
1443 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1444 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 0);
1445 stb0899_write_reg(state, STB0899_FECM, reg);
1447 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1448 stb0899_write_reg(state, STB0899_TSULC, 0x42);
1449 stb0899_write_reg(state, STB0899_RSLLC, 0x40);
1450 stb0899_write_reg(state, STB0899_TSLPL, 0x02);
1452 reg = stb0899_read_reg(state, STB0899_TSTRES);
1453 STB0899_SETFIELD_VAL(FRESLDPC, reg, 0);
1454 stb0899_write_reg(state, STB0899_TSTRES, reg);
1456 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1457 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 0);
1458 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 0);
1460 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 0);
1461 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 0);
1463 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 0);
1464 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1466 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 0);
1468 case DVBFE_DELSYS_DSS:
1469 /* FECM/Viterbi ON */
1470 reg = stb0899_read_reg(state, STB0899_FECM);
1471 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 1);
1472 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1473 stb0899_write_reg(state, STB0899_FECM, reg);
1475 stb0899_write_reg(state, STB0899_RSULC, 0xa1);
1476 stb0899_write_reg(state, STB0899_TSULC, 0x61);
1477 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1479 reg = stb0899_read_reg(state, STB0899_TSTRES);
1480 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1481 stb0899_write_reg(state, STB0899_TSTRES, reg);
1483 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1484 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1485 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1487 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1488 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1490 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1492 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1495 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1498 STB0899_SETFIELD_VAL(STOP_CKADCI108, stop_clk[0], 0);
1499 stb0899_write_regs(state, STB0899_STOPCLK1, stop_clk, 2);
1503 * stb0899_set_iterations
1504 * set the LDPC iteration scale function
1506 static void stb0899_set_iterations(struct stb0899_state *state)
1508 struct stb0899_internal *internal = &state->internal;
1509 struct stb0899_config *config = state->config;
1514 iter_scale = 17 * (internal->master_clk / 1000);
1515 iter_scale += 410000;
1516 iter_scale /= (internal->srate / 1000000);
1519 if (iter_scale > config->ldpc_max_iter)
1520 iter_scale = config->ldpc_max_iter;
1522 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, MAX_ITER);
1523 STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale);
1524 stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg);
1527 static enum dvbfe_search stb0899_search(struct dvb_frontend *fe, struct dvbfe_params *params)
1529 struct stb0899_state *state = fe->demodulator_priv;
1530 struct stb0899_params *i_params = &state->params;
1531 struct stb0899_internal *internal = &state->internal;
1533 u32 SearchRange, gain;
1535 switch (state->delsys) {
1536 case DVBFE_DELSYS_DVBS:
1537 dprintk(verbose, FE_ERROR, 1, "set DVB-S params");
1538 i_params->freq = params->frequency;
1539 i_params->srate = params->delsys.dvbs.symbol_rate;
1541 case DVBFE_DELSYS_DSS:
1542 dprintk(verbose, FE_ERROR, 1, "set DSS params");
1543 i_params->freq = params->frequency;
1544 i_params->srate = params->delsys.dss.symbol_rate;
1546 case DVBFE_DELSYS_DVBS2:
1547 dprintk(verbose, FE_ERROR, 1, "set DVB-S2 params");
1548 i_params->freq = params->frequency;
1549 i_params->srate = params->delsys.dvbs2.symbol_rate;
1552 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1555 dprintk(verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys);
1557 SearchRange = 10000000;
1558 dprintk(verbose, FE_DEBUG, 1, "Frequency=%d, Srate=%d", i_params->freq, i_params->srate);
1559 /* checking Search Range is meaningless for a fixed 3 Mhz */
1560 if (INRANGE(i_params->srate, 1000000, 45000000)) {
1561 dprintk(verbose, FE_DEBUG, 1, "Parameters IN RANGE");
1562 stb0899_set_delsys(state);
1564 if (state->config->tuner_set_rfsiggain) {
1565 if (internal->srate > 15000000)
1566 gain = 8; /* 15Mb < srate < 45Mb, gain = 8dB */
1567 else if (internal->srate > 5000000)
1568 gain = 12; /* 5Mb < srate < 15Mb, gain = 12dB */
1570 gain = 14; /* 1Mb < srate < 5Mb, gain = 14db */
1571 state->config->tuner_set_rfsiggain(fe, gain);
1574 if (i_params->srate <= 5000000)
1575 stb0899_set_mclk(state, 76500000);
1577 stb0899_set_mclk(state, 99000000);
1579 switch (state->delsys) {
1580 case DVBFE_DELSYS_DVBS:
1581 case DVBFE_DELSYS_DSS:
1582 dprintk(verbose, FE_DEBUG, 1, "DVB-S delivery system");
1583 internal->freq = i_params->freq;
1584 internal->srate = i_params->srate;
1586 * search = user search range +
1588 * 2 * Tuner_step_size +
1589 * 10% of the symbol rate
1591 internal->srch_range = SearchRange + 1500000 + (i_params->srate / 5);
1592 internal->derot_percent = 30;
1594 /* What to do for tuners having no bandwidth setup ? */
1595 if (state->config->tuner_set_bandwidth)
1596 state->config->tuner_set_bandwidth(fe, (13 * (stb0899_carr_width(state) + SearchRange)) / 10);
1597 if (state->config->tuner_get_bandwidth)
1598 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1599 /* Set DVB-S1 AGC */
1600 stb0899_write_reg(state, STB0899_AGCRFCFG, 0x11);
1602 /* Run the search algorithm */
1603 dprintk(verbose, FE_DEBUG, 1, "running DVB-S search algo ..");
1604 if (stb0899_dvbs_algo(state) == RANGEOK) {
1606 dprintk(verbose, FE_DEBUG, 1,
1607 "-------------------------------------> DVB-S LOCK !");
1609 // stb0899_write_reg(state, STB0899_ERRCTRL1, 0x3d); /* Viterbi Errors */
1610 // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1611 // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1612 // dprintk(verbose, FE_DEBUG, 1, "VSTATUS=0x%02x", internal->v_status);
1613 // dprintk(verbose, FE_DEBUG, 1, "ERR_CTRL=0x%02x", internal->err_ctrl);
1615 return DVBFE_ALGO_SEARCH_SUCCESS;
1619 return DVBFE_ALGO_SEARCH_FAILED;
1622 case DVBFE_DELSYS_DVBS2:
1623 internal->freq = i_params->freq;
1624 internal->srate = i_params->srate;
1625 internal->srch_range = SearchRange;
1627 if (state->config->tuner_set_bandwidth)
1628 state->config->tuner_set_bandwidth(fe, (stb0899_carr_width(state) + SearchRange));
1629 if (state->config->tuner_get_bandwidth)
1630 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1632 // pParams->SpectralInv = pSearch->IQ_Inversion;
1634 /* Set DVB-S2 AGC */
1635 stb0899_write_reg(state, STB0899_AGCRFCFG, 0x1c);
1637 /* Set IterScale =f(MCLK,SYMB) */
1638 stb0899_set_iterations(state);
1640 /* Run the search algorithm */
1641 dprintk(verbose, FE_DEBUG, 1, "running DVB-S2 search algo ..");
1642 if (stb0899_dvbs2_algo(state) == DVBS2_FEC_LOCK) {
1644 dprintk(verbose, FE_DEBUG, 1,
1645 "-------------------------------------> DVB-S2 LOCK !");
1647 // stb0899_write_reg(state, STB0899_ERRCTRL1, 0xb6); /* Packet Errors */
1648 // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1649 // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1651 return DVBFE_ALGO_SEARCH_SUCCESS;
1655 return DVBFE_ALGO_SEARCH_FAILED;
1659 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1660 return DVBFE_ALGO_SEARCH_INVALID;
1664 return DVBFE_ALGO_SEARCH_ERROR;
1667 static enum stb0899_status stb0899_track_carrier(struct stb0899_state *state)
1671 reg = stb0899_read_reg(state, STB0899_DSTATUS);
1672 dprintk(verbose, FE_DEBUG, 1, "--------------------> STB0899_DSTATUS=[0x%02x]", reg);
1673 if (STB0899_GETFIELD(CARRIER_FOUND, reg)) {
1674 dprintk(verbose, FE_DEBUG, 1, "-------------> CARRIEROK !");
1677 dprintk(verbose, FE_DEBUG, 1, "-------------> NOCARRIER !");
1684 static enum stb0899_status stb0899_get_ifagc(struct stb0899_state *state)
1688 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STATUS);
1689 dprintk(verbose, FE_DEBUG, 1, "DMD_STATUS=[0x%02x]", reg);
1690 if (STB0899_GETFIELD(IF_AGC_LOCK, reg)) {
1691 dprintk(verbose, FE_DEBUG, 1, "------------->IF AGC LOCKED !");
1694 dprintk(verbose, FE_DEBUG, 1, "------------->IF AGC LOCK LOST !");
1701 static int stb0899_get_s1fec(struct stb0899_internal *internal, enum dvbfe_fec *fec)
1703 switch (internal->fecrate) {
1704 case STB0899_FEC_1_2:
1705 *fec = DVBFE_FEC_1_2;
1707 case STB0899_FEC_2_3:
1708 *fec = DVBFE_FEC_2_3;
1710 case STB0899_FEC_3_4:
1711 *fec = DVBFE_FEC_3_4;
1713 case STB0899_FEC_5_6:
1714 *fec = DVBFE_FEC_5_6;
1716 case STB0899_FEC_6_7:
1717 *fec = DVBFE_FEC_6_7;
1719 case STB0899_FEC_7_8:
1720 *fec = DVBFE_FEC_7_8;
1729 static int stb0899_get_modcod(struct stb0899_internal *internal, struct dvbs2_params *params)
1731 switch (internal->modcod) {
1732 case STB0899_DUMMY_PLF:
1733 params->modulation = DVBFE_MOD_NONE;
1734 params->fec = DVBFE_FEC_NONE;
1736 case STB0899_QPSK_14:
1737 params->modulation = DVBFE_MOD_QPSK;
1738 params->fec = DVBFE_FEC_1_4;
1740 case STB0899_QPSK_13:
1741 params->modulation = DVBFE_MOD_QPSK;
1742 params->fec = DVBFE_FEC_1_3;
1744 case STB0899_QPSK_25:
1745 params->modulation = DVBFE_MOD_QPSK;
1746 params->fec = DVBFE_FEC_2_5;
1748 case STB0899_QPSK_12:
1749 params->modulation = DVBFE_MOD_QPSK;
1750 params->fec = DVBFE_FEC_1_2;
1752 case STB0899_QPSK_35:
1753 params->modulation = DVBFE_MOD_QPSK;
1754 params->fec = DVBFE_FEC_3_5;
1756 case STB0899_QPSK_23:
1757 params->modulation = DVBFE_MOD_QPSK;
1758 params->fec = DVBFE_FEC_2_3;
1760 case STB0899_QPSK_34:
1761 params->modulation = DVBFE_MOD_QPSK;
1762 params->fec = DVBFE_FEC_3_4;
1764 case STB0899_QPSK_45:
1765 params->modulation = DVBFE_MOD_QPSK;
1766 params->fec = DVBFE_FEC_4_5;
1768 case STB0899_QPSK_56:
1769 params->modulation = DVBFE_MOD_QPSK;
1770 params->fec = DVBFE_FEC_5_6;
1772 case STB0899_QPSK_89:
1773 params->modulation = DVBFE_MOD_QPSK;
1774 params->fec = DVBFE_FEC_8_9;
1776 case STB0899_QPSK_910:
1777 params->modulation = DVBFE_MOD_QPSK;
1778 params->fec = DVBFE_FEC_9_10;
1780 case STB0899_8PSK_35:
1781 params->modulation = DVBFE_MOD_8PSK;
1782 params->fec = DVBFE_FEC_3_5;
1784 case STB0899_8PSK_23:
1785 params->modulation = DVBFE_MOD_8PSK;
1786 params->fec = DVBFE_FEC_2_3;
1788 case STB0899_8PSK_34:
1789 params->modulation = DVBFE_MOD_8PSK;
1790 params->fec = DVBFE_FEC_3_4;
1792 case STB0899_8PSK_56:
1793 params->modulation = DVBFE_MOD_8PSK;
1794 params->fec = DVBFE_FEC_5_6;
1796 case STB0899_8PSK_89:
1797 params->modulation = DVBFE_MOD_8PSK;
1798 params->fec = DVBFE_FEC_8_9;
1800 case STB0899_8PSK_910:
1801 params->modulation = DVBFE_MOD_8PSK;
1802 params->fec = DVBFE_FEC_9_10;
1804 case STB0899_16APSK_23:
1805 params->modulation = DVBFE_MOD_16APSK;
1806 params->fec = DVBFE_FEC_2_3;
1808 case STB0899_16APSK_34:
1809 params->modulation = DVBFE_MOD_16APSK;
1810 params->fec = DVBFE_FEC_3_4;
1812 case STB0899_16APSK_45:
1813 params->modulation = DVBFE_MOD_16APSK;
1814 params->fec = DVBFE_FEC_4_5;
1816 case STB0899_16APSK_56:
1817 params->modulation = DVBFE_MOD_16APSK;
1818 params->fec = DVBFE_FEC_5_6;
1820 case STB0899_16APSK_89:
1821 params->modulation = DVBFE_MOD_16APSK;
1822 params->fec = DVBFE_FEC_8_9;
1824 case STB0899_16APSK_910:
1825 params->modulation = DVBFE_MOD_16APSK;
1826 params->fec = DVBFE_FEC_9_10;
1828 case STB0899_32APSK_34:
1829 params->modulation = DVBFE_MOD_32APSK;
1830 params->fec = DVBFE_FEC_3_4;
1832 case STB0899_32APSK_45:
1833 params->modulation = DVBFE_MOD_32APSK;
1834 params->fec = DVBFE_FEC_4_5;
1836 case STB0899_32APSK_56:
1837 params->modulation = DVBFE_MOD_32APSK;
1838 params->fec = DVBFE_FEC_5_6;
1840 case STB0899_32APSK_89:
1841 params->modulation = DVBFE_MOD_32APSK;
1842 params->fec = DVBFE_FEC_8_9;
1844 case STB0899_32APSK_910:
1845 params->modulation = DVBFE_MOD_32APSK;
1846 params->fec = DVBFE_FEC_9_10;
1857 * periodically check the signal level against a specified
1858 * threshold level and perform derotator centering.
1859 * called once we have a lock from a succesful search
1862 * Will be called periodically called to maintain the
1865 * Will be used to get parameters as well as info from
1866 * the decoded baseband header
1868 * Once a new lock has established, the internal state
1869 * frequency (internal->freq) is updated
1871 static int stb0899_track(struct dvb_frontend *fe, struct dvbfe_params *params, int *delay)
1875 struct stb0899_state *state = fe->demodulator_priv;
1876 struct stb0899_internal *internal = &state->internal;
1884 static int stb0899_get_params(struct dvb_frontend *fe, struct dvbfe_params *params)
1886 struct stb0899_state *state = fe->demodulator_priv;
1887 struct stb0899_internal *internal = &state->internal;
1889 params->frequency = internal->freq;
1890 params->inversion = internal->inversion;
1891 params->delivery = state->delsys;
1892 switch (state->delsys) {
1893 case DVBFE_DELSYS_DVBS:
1894 dprintk(verbose, FE_DEBUG, 1, "Get DVB-S params");
1895 params->delsys.dvbs.symbol_rate = internal->srate;
1896 params->delsys.dvbs.modulation = DVBFE_MOD_QPSK;
1898 case DVBFE_DELSYS_DSS:
1899 dprintk(verbose, FE_DEBUG, 1, "Get DSS params");
1900 params->delsys.dss.symbol_rate = internal->srate;
1901 params->delsys.dss.modulation = DVBFE_MOD_QPSK;
1903 case DVBFE_DELSYS_DVBS2:
1904 dprintk(verbose, FE_DEBUG, 1, "Get DVB-S2 params");
1905 params->delsys.dvbs2.symbol_rate = internal->srate;
1908 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1915 static enum dvbfe_algo stb0899_frontend_algo(struct dvb_frontend *fe)
1917 return DVBFE_ALGO_CUSTOM;
1920 static struct dvb_frontend_ops stb0899_ops = {
1923 .name = "STB0899 Multistandard",
1926 .release = stb0899_release,
1927 .init = stb0899_init,
1928 .sleep = stb0899_sleep,
1929 // .wakeup = stb0899_wakeup,
1931 .i2c_gate_ctrl = stb0899_i2c_gate_ctrl,
1932 .get_info = stb0899_get_info,
1933 .get_delsys = stb0899_get_delsys,
1935 .get_frontend_algo = stb0899_frontend_algo,
1936 .search = stb0899_search,
1937 .track = stb0899_track,
1938 .get_params = stb0899_get_params,
1940 .read_status = stb0899_read_status,
1941 .read_snr = stb0899_read_snr,
1942 .read_signal_strength = stb0899_read_signal_strength,
1943 .read_status = stb0899_read_status,
1944 .read_ber = stb0899_read_ber,
1946 .set_voltage = stb0899_set_voltage,
1947 .set_tone = stb0899_set_tone,
1949 .diseqc_send_master_cmd = stb0899_send_diseqc_msg,
1950 .diseqc_recv_slave_reply = stb0899_recv_slave_reply,
1951 .diseqc_send_burst = stb0899_send_diseqc_burst,
1954 struct dvb_frontend *stb0899_attach(struct stb0899_config *config, struct i2c_adapter *i2c)
1956 struct stb0899_state *state = NULL;
1957 enum stb0899_inversion inversion;
1959 state = kzalloc(sizeof (struct stb0899_state), GFP_KERNEL);
1963 inversion = config->inversion;
1964 state->verbose = verbose;
1965 state->config = config;
1967 state->frontend.ops = stb0899_ops;
1968 state->frontend.demodulator_priv = state;
1969 state->internal.inversion = inversion;
1971 stb0899_wakeup(&state->frontend);
1972 if (stb0899_get_dev_id(state) == -ENODEV) {
1973 printk("%s: Exiting .. !\n", __func__);
1977 printk("%s: Attaching STB0899 \n", __func__);
1978 return &state->frontend;
1984 EXPORT_SYMBOL(stb0899_attach);
1985 MODULE_PARM_DESC(verbose, "Set Verbosity level");
1986 MODULE_AUTHOR("Manu Abraham");
1987 MODULE_DESCRIPTION("STB0899 Multi-Std frontend");
1988 MODULE_LICENSE("GPL");