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/slab.h>
26 #include <linux/string.h>
28 #include <linux/dvb/frontend.h>
29 #include "dvb_frontend.h"
31 #include "stb0899_drv.h"
32 #include "stb0899_priv.h"
33 #include "stb0899_reg.h"
35 static unsigned int verbose = 0;//1;
36 module_param(verbose, int, 0644);
38 /* C/N in dB/10, NIRM/NIRL */
39 static const struct stb0899_tab stb0899_cn_tab[] = {
62 /* DVB-S AGCIQ_VALUE vs. signal level in dBm/10.
63 * As measured, connected to a modulator.
64 * -8.0 to -50.0 dBm directly connected,
65 * -52.0 to -74.8 with extra attenuation.
66 * Cut-off to AGCIQ_VALUE = 0x80 below -74.8dBm.
67 * Crude linear extrapolation below -84.8dBm and above -8.0dBm.
69 static const struct stb0899_tab stb0899_dvbsrf_tab[] = {
103 /* DVB-S2 IF_AGC_GAIN vs. signal level in dBm/10.
104 * As measured, connected to a modulator.
105 * -8.0 to -50.1 dBm directly connected,
106 * -53.0 to -76.6 with extra attenuation.
107 * Cut-off to IF_AGC_GAIN = 0x3fff below -76.6dBm.
108 * Crude linear extrapolation below -76.6dBm and above -8.0dBm.
110 static const struct stb0899_tab stb0899_dvbs2rf_tab[] = {
137 /* DVB-S2 Es/N0 quant in dB/100 vs read value * 100*/
138 static struct stb0899_tab stb0899_quant_tab[] = {
180 /* DVB-S2 Es/N0 estimate in dB/100 vs read value */
181 static struct stb0899_tab stb0899_est_tab[] = {
221 static int _stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
225 u8 b0[] = { reg >> 8, reg & 0xff };
228 struct i2c_msg msg[] = {
230 .addr = state->config->demod_address,
235 .addr = state->config->demod_address,
242 ret = i2c_transfer(state->i2c, msg, 2);
244 if (ret != -ERESTARTSYS)
245 dprintk(state->verbose, FE_ERROR, 1,
246 "Read error, Reg=[0x%02x], Status=%d",
249 return ret < 0 ? ret : -EREMOTEIO;
251 if (unlikely(*state->verbose >= FE_DEBUGREG))
252 dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
255 return (unsigned int)buf;
258 int stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
262 result = _stb0899_read_reg(state, reg);
265 * access to 0xf2xx/0xf6xx
266 * must be followed by read from 0xf2ff/0xf6ff.
268 if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
269 (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
270 _stb0899_read_reg(state, (reg | 0x00ff));
275 u32 _stb0899_read_s2reg(struct stb0899_state *state,
277 u32 stb0899_base_addr,
278 u16 stb0899_reg_offset)
286 GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */
287 GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */
288 GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */
289 GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */
290 GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */
291 GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */
294 0x00, /* 0xf3 Reg Offset */
295 0x00, /* 0x44 Reg Offset */
298 struct i2c_msg msg_0 = {
299 .addr = state->config->demod_address,
305 struct i2c_msg msg_1 = {
306 .addr = state->config->demod_address,
312 struct i2c_msg msg_r = {
313 .addr = state->config->demod_address,
319 tmpaddr = stb0899_reg_offset & 0xff00;
320 if (!(stb0899_reg_offset & 0x8))
321 tmpaddr = stb0899_reg_offset | 0x20;
323 buf_1[0] = GETBYTE(tmpaddr, BYTE1);
324 buf_1[1] = GETBYTE(tmpaddr, BYTE0);
326 status = i2c_transfer(state->i2c, &msg_0, 1);
328 if (status != -ERESTARTSYS)
329 printk(KERN_ERR "%s ERR(1), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
330 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
336 status = i2c_transfer(state->i2c, &msg_1, 1);
340 status = i2c_transfer(state->i2c, &msg_r, 1);
344 buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
345 buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
348 status = i2c_transfer(state->i2c, &msg_1, 1);
350 if (status != -ERESTARTSYS)
351 printk(KERN_ERR "%s ERR(2), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
352 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
356 status = i2c_transfer(state->i2c, &msg_r, 1);
358 if (status != -ERESTARTSYS)
359 printk(KERN_ERR "%s ERR(3), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
360 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
361 return status < 0 ? status : -EREMOTEIO;
364 data = MAKEWORD32(buf[3], buf[2], buf[1], buf[0]);
365 if (unlikely(*state->verbose >= FE_DEBUGREG))
366 printk(KERN_DEBUG "%s Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
367 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, data);
372 return status < 0 ? status : -EREMOTEIO;
375 int stb0899_write_s2reg(struct stb0899_state *state,
377 u32 stb0899_base_addr,
378 u16 stb0899_reg_offset,
383 /* Base Address Setup */
385 GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */
386 GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */
387 GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */
388 GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */
389 GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */
390 GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */
393 0x00, /* 0xf3 Reg Offset */
394 0x00, /* 0x44 Reg Offset */
401 struct i2c_msg msg_0 = {
402 .addr = state->config->demod_address,
408 struct i2c_msg msg_1 = {
409 .addr = state->config->demod_address,
415 buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
416 buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
417 buf_1[2] = GETBYTE(stb0899_data, BYTE0);
418 buf_1[3] = GETBYTE(stb0899_data, BYTE1);
419 buf_1[4] = GETBYTE(stb0899_data, BYTE2);
420 buf_1[5] = GETBYTE(stb0899_data, BYTE3);
422 if (unlikely(*state->verbose >= FE_DEBUGREG))
423 printk(KERN_DEBUG "%s Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
424 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data);
426 status = i2c_transfer(state->i2c, &msg_0, 1);
427 if (unlikely(status < 1)) {
428 if (status != -ERESTARTSYS)
429 printk(KERN_ERR "%s ERR (1), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
430 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
433 status = i2c_transfer(state->i2c, &msg_1, 1);
434 if (unlikely(status < 1)) {
435 if (status != -ERESTARTSYS)
436 printk(KERN_ERR "%s ERR (2), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
437 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
439 return status < 0 ? status : -EREMOTEIO;
445 return status < 0 ? status : -EREMOTEIO;
448 int stb0899_read_regs(struct stb0899_state *state, unsigned int reg, u8 *buf, u32 count)
452 u8 b0[] = { reg >> 8, reg & 0xff };
454 struct i2c_msg msg[] = {
456 .addr = state->config->demod_address,
461 .addr = state->config->demod_address,
468 status = i2c_transfer(state->i2c, msg, 2);
470 if (status != -ERESTARTSYS)
471 printk(KERN_ERR "%s Read error, Reg=[0x%04x], Count=%u, Status=%d\n",
472 __func__, reg, count, status);
477 * access to 0xf2xx/0xf6xx
478 * must be followed by read from 0xf2ff/0xf6ff.
480 if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
481 (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
482 _stb0899_read_reg(state, (reg | 0x00ff));
484 if (unlikely(*state->verbose >= FE_DEBUGREG)) {
487 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
488 for (i = 0; i < count; i++) {
489 printk(" %02x", buf[i]);
496 return status < 0 ? status : -EREMOTEIO;
499 int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data, u32 count)
503 struct i2c_msg i2c_msg = {
504 .addr = state->config->demod_address,
512 memcpy(&buf[2], data, count);
514 if (unlikely(*state->verbose >= FE_DEBUGREG)) {
517 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
518 for (i = 0; i < count; i++)
519 printk(" %02x", data[i]);
522 ret = i2c_transfer(state->i2c, &i2c_msg, 1);
526 * access to 0xf2xx/0xf6xx
527 * must be followed by read from 0xf2ff/0xf6ff.
529 if ((((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
530 stb0899_read_reg(state, (reg | 0x00ff));
533 if (ret != -ERESTARTSYS)
534 dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
535 reg, data[0], count, ret);
536 return ret < 0 ? ret : -EREMOTEIO;
542 int stb0899_write_reg(struct stb0899_state *state, unsigned int reg, u8 data)
544 return stb0899_write_regs(state, reg, &data, 1);
549 * Get STB0899 master clock frequency
550 * ExtClk: external clock frequency (Hz)
552 static u32 stb0899_get_mclk(struct stb0899_state *state)
554 u32 mclk = 0, div = 0;
556 div = stb0899_read_reg(state, STB0899_NCOARSE);
557 mclk = (div + 1) * state->config->xtal_freq / 6;
558 dprintk(state->verbose, FE_DEBUG, 1, "div=%d, mclk=%d", div, mclk);
565 * Set STB0899 master Clock frequency
566 * Mclk: demodulator master clock
567 * ExtClk: external clock frequency (Hz)
569 static void stb0899_set_mclk(struct stb0899_state *state, u32 Mclk)
571 struct stb0899_internal *internal = &state->internal;
574 dprintk(state->verbose, FE_DEBUG, 1, "state->config=%p", state->config);
575 mdiv = ((6 * Mclk) / state->config->xtal_freq) - 1;
576 dprintk(state->verbose, FE_DEBUG, 1, "mdiv=%d", mdiv);
578 stb0899_write_reg(state, STB0899_NCOARSE, mdiv);
579 internal->master_clk = stb0899_get_mclk(state);
581 dprintk(state->verbose, FE_DEBUG, 1, "MasterCLOCK=%d", internal->master_clk);
584 static int stb0899_postproc(struct stb0899_state *state, u8 ctl, int enable)
586 struct stb0899_config *config = state->config;
587 const struct stb0899_postproc *postproc = config->postproc;
589 /* post process event */
592 if (postproc[ctl].level == STB0899_GPIOPULLUP)
593 stb0899_write_reg(state, postproc[ctl].gpio, 0x02);
595 stb0899_write_reg(state, postproc[ctl].gpio, 0x82);
597 if (postproc[ctl].level == STB0899_GPIOPULLUP)
598 stb0899_write_reg(state, postproc[ctl].gpio, 0x82);
600 stb0899_write_reg(state, postproc[ctl].gpio, 0x02);
606 static void stb0899_release(struct dvb_frontend *fe)
608 struct stb0899_state *state = fe->demodulator_priv;
610 dprintk(state->verbose, FE_DEBUG, 1, "Release Frontend");
611 /* post process event */
612 stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0);
620 static int stb0899_get_alpha(struct stb0899_state *state)
624 mode_coeff = stb0899_read_reg(state, STB0899_DEMOD);
626 if (STB0899_GETFIELD(MODECOEFF, mode_coeff) == 1)
635 static void stb0899_init_calc(struct stb0899_state *state)
637 struct stb0899_internal *internal = &state->internal;
643 /* Read registers (in burst mode) */
644 agc1cn = stb0899_read_reg(state, STB0899_AGC1CN);
645 stb0899_read_regs(state, STB0899_AGC1REF, agc, 2); /* AGC1R and AGC2O */
647 /* Initial calculations */
648 master_clk = stb0899_get_mclk(state);
649 internal->t_agc1 = 0;
650 internal->t_agc2 = 0;
651 internal->master_clk = master_clk;
652 internal->mclk = master_clk / 65536L;
653 internal->rolloff = stb0899_get_alpha(state);
655 /* DVBS2 Initial calculations */
656 /* Set AGC value to the middle */
657 internal->agc_gain = 8154;
658 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_CNTRL);
659 STB0899_SETFIELD_VAL(IF_GAIN_INIT, reg, internal->agc_gain);
660 stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_IF_AGC_CNTRL, STB0899_OFF0_IF_AGC_CNTRL, reg);
662 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, RRC_ALPHA);
663 internal->rrc_alpha = STB0899_GETFIELD(RRC_ALPHA, reg);
665 internal->center_freq = 0;
666 internal->av_frame_coarse = 10;
667 internal->av_frame_fine = 20;
668 internal->step_size = 2;
670 if ((pParams->SpectralInv == FE_IQ_NORMAL) || (pParams->SpectralInv == FE_IQ_AUTO))
671 pParams->IQLocked = 0;
673 pParams->IQLocked = 1;
677 static int stb0899_wait_diseqc_fifo_empty(struct stb0899_state *state, int timeout)
680 unsigned long start = jiffies;
683 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
684 if (!STB0899_GETFIELD(FIFOFULL, reg))
686 if ((jiffies - start) > timeout) {
687 dprintk(state->verbose, FE_ERROR, 1, "timed out !!");
695 static int stb0899_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
697 struct stb0899_state *state = fe->demodulator_priv;
700 if (cmd->msg_len > 8)
703 /* enable FIFO precharge */
704 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
705 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 1);
706 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
707 for (i = 0; i < cmd->msg_len; i++) {
708 /* wait for FIFO empty */
709 if (stb0899_wait_diseqc_fifo_empty(state, 10) < 0)
712 stb0899_write_reg(state, STB0899_DISFIFO, cmd->msg[i]);
714 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
715 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0);
716 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
721 static int stb0899_wait_diseqc_rxidle(struct stb0899_state *state, int timeout)
724 unsigned long start = jiffies;
726 while (!STB0899_GETFIELD(RXEND, reg)) {
727 reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
728 if (jiffies - start > timeout) {
729 dprintk(state->verbose, FE_ERROR, 1, "timed out!!");
738 static int stb0899_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
740 struct stb0899_state *state = fe->demodulator_priv;
741 u8 reg, length = 0, i;
744 if (stb0899_wait_diseqc_rxidle(state, 100) < 0)
747 reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
748 if (STB0899_GETFIELD(RXEND, reg)) {
750 reg = stb0899_read_reg(state, STB0899_DISRX_ST1);
751 length = STB0899_GETFIELD(FIFOBYTENBR, reg);
753 if (length > sizeof (reply->msg)) {
757 reply->msg_len = length;
760 for (i = 0; i < length; i++)
761 reply->msg[i] = stb0899_read_reg(state, STB0899_DISFIFO);
770 static int stb0899_wait_diseqc_txidle(struct stb0899_state *state, int timeout)
773 unsigned long start = jiffies;
775 while (!STB0899_GETFIELD(TXIDLE, reg)) {
776 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
777 if (jiffies - start > timeout) {
778 dprintk(state->verbose, FE_ERROR, 1, "timed out!!");
786 static int stb0899_send_diseqc_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
788 struct stb0899_state *state = fe->demodulator_priv;
791 /* wait for diseqc idle */
792 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
795 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
797 /* set to burst mode */
798 STB0899_SETFIELD_VAL(DISEQCMODE, reg, 0x03);
799 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x01);
800 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
804 stb0899_write_reg(state, STB0899_DISFIFO, 0x00);
808 stb0899_write_reg(state, STB0899_DISFIFO, 0xff);
811 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
812 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x00);
813 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
814 /* wait for diseqc idle */
815 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
819 stb0899_write_reg(state, STB0899_DISCNTRL1, old_state);
824 static int stb0899_diseqc_init(struct stb0899_state *state)
826 struct dvb_diseqc_master_cmd tx_data;
828 struct dvb_diseqc_slave_reply rx_data;
830 u8 f22_tx, f22_rx, reg;
832 u32 mclk, tx_freq = 22000;/* count = 0, i; */
833 tx_data.msg[0] = 0xe2;
835 reg = stb0899_read_reg(state, STB0899_DISCNTRL2);
836 STB0899_SETFIELD_VAL(ONECHIP_TRX, reg, 0);
837 stb0899_write_reg(state, STB0899_DISCNTRL2, reg);
840 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
841 STB0899_SETFIELD_VAL(DISEQCRESET, reg, 1);
842 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
844 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
845 STB0899_SETFIELD_VAL(DISEQCRESET, reg, 0);
846 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
848 mclk = stb0899_get_mclk(state);
849 f22_tx = mclk / (tx_freq * 32);
850 stb0899_write_reg(state, STB0899_DISF22, f22_tx); /* DiSEqC Tx freq */
851 state->rx_freq = 20000;
852 f22_rx = mclk / (state->rx_freq * 32);
857 static int stb0899_sleep(struct dvb_frontend *fe)
859 struct stb0899_state *state = fe->demodulator_priv;
863 dprintk(state->verbose, FE_DEBUG, 1, "Going to Sleep .. (Really tired .. :-))");
864 /* post process event */
865 stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0);
870 static int stb0899_wakeup(struct dvb_frontend *fe)
873 struct stb0899_state *state = fe->demodulator_priv;
875 if ((rc = stb0899_write_reg(state, STB0899_SYNTCTRL, STB0899_SELOSCI)))
877 /* Activate all clocks; DVB-S2 registers are inaccessible otherwise. */
878 if ((rc = stb0899_write_reg(state, STB0899_STOPCLK1, 0x00)))
880 if ((rc = stb0899_write_reg(state, STB0899_STOPCLK2, 0x00)))
883 /* post process event */
884 stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 1);
889 static int stb0899_init(struct dvb_frontend *fe)
892 struct stb0899_state *state = fe->demodulator_priv;
893 struct stb0899_config *config = state->config;
895 dprintk(state->verbose, FE_DEBUG, 1, "Initializing STB0899 ... ");
898 dprintk(state->verbose, FE_DEBUG, 1, "init device");
899 for (i = 0; config->init_dev[i].address != 0xffff; i++)
900 stb0899_write_reg(state, config->init_dev[i].address, config->init_dev[i].data);
902 dprintk(state->verbose, FE_DEBUG, 1, "init S2 demod");
904 for (i = 0; config->init_s2_demod[i].offset != 0xffff; i++)
905 stb0899_write_s2reg(state, STB0899_S2DEMOD,
906 config->init_s2_demod[i].base_address,
907 config->init_s2_demod[i].offset,
908 config->init_s2_demod[i].data);
910 dprintk(state->verbose, FE_DEBUG, 1, "init S1 demod");
912 for (i = 0; config->init_s1_demod[i].address != 0xffff; i++)
913 stb0899_write_reg(state, config->init_s1_demod[i].address, config->init_s1_demod[i].data);
915 dprintk(state->verbose, FE_DEBUG, 1, "init S2 FEC");
917 for (i = 0; config->init_s2_fec[i].offset != 0xffff; i++)
918 stb0899_write_s2reg(state, STB0899_S2FEC,
919 config->init_s2_fec[i].base_address,
920 config->init_s2_fec[i].offset,
921 config->init_s2_fec[i].data);
923 dprintk(state->verbose, FE_DEBUG, 1, "init TST");
925 for (i = 0; config->init_tst[i].address != 0xffff; i++)
926 stb0899_write_reg(state, config->init_tst[i].address, config->init_tst[i].data);
928 stb0899_init_calc(state);
929 stb0899_diseqc_init(state);
934 static int stb0899_table_lookup(const struct stb0899_tab *tab, int max, int val)
939 if (val < tab[min].read)
941 else if (val >= tab[max].read)
944 while ((max - min) > 1) {
945 med = (max + min) / 2;
946 if (val >= tab[min].read && val < tab[med].read)
951 res = ((val - tab[min].read) *
952 (tab[max].real - tab[min].real) /
953 (tab[max].read - tab[min].read)) +
960 static int stb0899_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
962 struct stb0899_state *state = fe->demodulator_priv;
963 struct stb0899_internal *internal = &state->internal;
967 switch (state->delsys) {
970 if (internal->lock) {
971 reg = stb0899_read_reg(state, STB0899_VSTATUS);
972 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
974 reg = stb0899_read_reg(state, STB0899_AGCIQIN);
975 val = (s32)(s8)STB0899_GETFIELD(AGCIQVALUE, reg);
977 *strength = stb0899_table_lookup(stb0899_dvbsrf_tab, ARRAY_SIZE(stb0899_dvbsrf_tab) - 1, val);
979 dprintk(state->verbose, FE_DEBUG, 1, "AGCIQVALUE = 0x%02x, C = %d * 0.1 dBm",
980 val & 0xff, *strength);
985 if (internal->lock) {
986 reg = STB0899_READ_S2REG(STB0899_DEMOD, IF_AGC_GAIN);
987 val = STB0899_GETFIELD(IF_AGC_GAIN, reg);
989 *strength = stb0899_table_lookup(stb0899_dvbs2rf_tab, ARRAY_SIZE(stb0899_dvbs2rf_tab) - 1, val);
991 dprintk(state->verbose, FE_DEBUG, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm",
992 val & 0x3fff, *strength);
996 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
1003 static int stb0899_read_snr(struct dvb_frontend *fe, u16 *snr)
1005 struct stb0899_state *state = fe->demodulator_priv;
1006 struct stb0899_internal *internal = &state->internal;
1008 unsigned int val, quant, quantn = -1, est, estn = -1;
1012 reg = stb0899_read_reg(state, STB0899_VSTATUS);
1013 switch (state->delsys) {
1016 if (internal->lock) {
1017 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
1019 stb0899_read_regs(state, STB0899_NIRM, buf, 2);
1020 val = MAKEWORD16(buf[0], buf[1]);
1022 *snr = stb0899_table_lookup(stb0899_cn_tab, ARRAY_SIZE(stb0899_cn_tab) - 1, val);
1023 dprintk(state->verbose, FE_DEBUG, 1, "NIR = 0x%02x%02x = %u, C/N = %d * 0.1 dBm\n",
1024 buf[0], buf[1], val, *snr);
1029 if (internal->lock) {
1030 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_CNTRL1);
1031 quant = STB0899_GETFIELD(UWP_ESN0_QUANT, reg);
1032 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_STAT2);
1033 est = STB0899_GETFIELD(ESN0_EST, reg);
1035 val = 301; /* C/N = 30.1 dB */
1037 val = 270; /* C/N = 27.0 dB */
1039 /* quantn = 100 * log(quant^2) */
1040 quantn = stb0899_table_lookup(stb0899_quant_tab, ARRAY_SIZE(stb0899_quant_tab) - 1, quant * 100);
1041 /* estn = 100 * log(est) */
1042 estn = stb0899_table_lookup(stb0899_est_tab, ARRAY_SIZE(stb0899_est_tab) - 1, est);
1043 /* snr(dBm/10) = -10*(log(est)-log(quant^2)) => snr(dBm/10) = (100*log(quant^2)-100*log(est))/10 */
1044 val = (quantn - estn) / 10;
1047 dprintk(state->verbose, FE_DEBUG, 1, "Es/N0 quant = %d (%d) estimate = %u (%d), C/N = %d * 0.1 dBm",
1048 quant, quantn, est, estn, val);
1052 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
1059 static int stb0899_read_status(struct dvb_frontend *fe, enum fe_status *status)
1061 struct stb0899_state *state = fe->demodulator_priv;
1062 struct stb0899_internal *internal = &state->internal;
1066 switch (state->delsys) {
1069 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S/DSS");
1070 if (internal->lock) {
1071 reg = stb0899_read_reg(state, STB0899_VSTATUS);
1072 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
1073 dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_CARRIER | FE_HAS_LOCK");
1074 *status |= FE_HAS_CARRIER | FE_HAS_LOCK;
1076 reg = stb0899_read_reg(state, STB0899_PLPARM);
1077 if (STB0899_GETFIELD(VITCURPUN, reg)) {
1078 dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_VITERBI | FE_HAS_SYNC");
1079 *status |= FE_HAS_VITERBI | FE_HAS_SYNC;
1080 /* post process event */
1081 stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1);
1087 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S2");
1088 if (internal->lock) {
1089 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STAT2);
1090 if (STB0899_GETFIELD(UWP_LOCK, reg) && STB0899_GETFIELD(CSM_LOCK, reg)) {
1091 *status |= FE_HAS_CARRIER;
1092 dprintk(state->verbose, FE_DEBUG, 1,
1093 "UWP & CSM Lock ! ---> DVB-S2 FE_HAS_CARRIER");
1095 reg = stb0899_read_reg(state, STB0899_CFGPDELSTATUS1);
1096 if (STB0899_GETFIELD(CFGPDELSTATUS_LOCK, reg)) {
1097 *status |= FE_HAS_LOCK;
1098 dprintk(state->verbose, FE_DEBUG, 1,
1099 "Packet Delineator Locked ! -----> DVB-S2 FE_HAS_LOCK");
1102 if (STB0899_GETFIELD(CONTINUOUS_STREAM, reg)) {
1103 *status |= FE_HAS_VITERBI;
1104 dprintk(state->verbose, FE_DEBUG, 1,
1105 "Packet Delineator found VITERBI ! -----> DVB-S2 FE_HAS_VITERBI");
1107 if (STB0899_GETFIELD(ACCEPTED_STREAM, reg)) {
1108 *status |= FE_HAS_SYNC;
1109 dprintk(state->verbose, FE_DEBUG, 1,
1110 "Packet Delineator found SYNC ! -----> DVB-S2 FE_HAS_SYNC");
1111 /* post process event */
1112 stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1);
1118 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
1126 * viterbi error for DVB-S/DSS
1127 * packet error for DVB-S2
1128 * Bit Error Rate or Packet Error Rate * 10 ^ 7
1130 static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber)
1132 struct stb0899_state *state = fe->demodulator_priv;
1133 struct stb0899_internal *internal = &state->internal;
1140 switch (state->delsys) {
1143 if (internal->lock) {
1144 /* average 5 BER values */
1145 for (i = 0; i < 5; i++) {
1147 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1148 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1149 *ber += MAKEWORD16(msb, lsb);
1153 if (STB0899_GETFIELD(VSTATUS_PRFVIT, internal->v_status)) {
1156 /* ber = ber * 10 ^ 7 */
1157 *ber /= (-1 + (1 << (2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1163 if (internal->lock) {
1164 /* Average 5 PER values */
1165 for (i = 0; i < 5; i++) {
1167 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1168 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1169 *ber += MAKEWORD16(msb, lsb);
1171 /* ber = ber * 10 ^ 7 */
1173 *ber /= (-1 + (1 << (4 + 2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1177 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
1184 static int stb0899_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
1186 struct stb0899_state *state = fe->demodulator_priv;
1189 case SEC_VOLTAGE_13:
1190 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1191 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1192 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x00);
1194 case SEC_VOLTAGE_18:
1195 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x02);
1196 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1197 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1199 case SEC_VOLTAGE_OFF:
1200 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1201 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x82);
1202 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1211 static int stb0899_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
1213 struct stb0899_state *state = fe->demodulator_priv;
1214 struct stb0899_internal *internal = &state->internal;
1218 /* wait for diseqc idle */
1219 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
1224 div = (internal->master_clk / 100) / 5632;
1225 div = (div + 5) / 10;
1226 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x66);
1227 reg = stb0899_read_reg(state, STB0899_ACRPRESC);
1228 STB0899_SETFIELD_VAL(ACRPRESC, reg, 0x03);
1229 stb0899_write_reg(state, STB0899_ACRPRESC, reg);
1230 stb0899_write_reg(state, STB0899_ACRDIV1, div);
1233 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x20);
1241 int stb0899_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
1244 struct stb0899_state *state = fe->demodulator_priv;
1246 i2c_stat = stb0899_read_reg(state, STB0899_I2CRPT);
1251 dprintk(state->verbose, FE_DEBUG, 1, "Enabling I2C Repeater ...");
1252 i2c_stat |= STB0899_I2CTON;
1253 if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
1256 dprintk(state->verbose, FE_DEBUG, 1, "Disabling I2C Repeater ...");
1257 i2c_stat &= ~STB0899_I2CTON;
1258 if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
1263 dprintk(state->verbose, FE_ERROR, 1, "I2C Repeater control failed");
1268 static inline void CONVERT32(u32 x, char *str)
1270 *str++ = (x >> 24) & 0xff;
1271 *str++ = (x >> 16) & 0xff;
1272 *str++ = (x >> 8) & 0xff;
1273 *str++ = (x >> 0) & 0xff;
1277 int stb0899_get_dev_id(struct stb0899_state *state)
1279 u8 chip_id, release;
1281 u32 demod_ver = 0, fec_ver = 0;
1282 char demod_str[5] = { 0 };
1283 char fec_str[5] = { 0 };
1285 id = stb0899_read_reg(state, STB0899_DEV_ID);
1286 dprintk(state->verbose, FE_DEBUG, 1, "ID reg=[0x%02x]", id);
1287 chip_id = STB0899_GETFIELD(CHIP_ID, id);
1288 release = STB0899_GETFIELD(CHIP_REL, id);
1290 dprintk(state->verbose, FE_ERROR, 1, "Device ID=[%d], Release=[%d]",
1293 CONVERT32(STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_CORE_ID), (char *)&demod_str);
1295 demod_ver = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_VERSION_ID);
1296 dprintk(state->verbose, FE_ERROR, 1, "Demodulator Core ID=[%s], Version=[%d]", (char *) &demod_str, demod_ver);
1297 CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC, FEC_CORE_ID_REG), (char *)&fec_str);
1298 fec_ver = STB0899_READ_S2REG(STB0899_S2FEC, FEC_VER_ID_REG);
1299 if (! (chip_id > 0)) {
1300 dprintk(state->verbose, FE_ERROR, 1, "couldn't find a STB 0899");
1304 dprintk(state->verbose, FE_ERROR, 1, "FEC Core ID=[%s], Version=[%d]", (char*) &fec_str, fec_ver);
1309 static void stb0899_set_delivery(struct stb0899_state *state)
1314 stop_clk[0] = stb0899_read_reg(state, STB0899_STOPCLK1);
1315 stop_clk[1] = stb0899_read_reg(state, STB0899_STOPCLK2);
1317 switch (state->delsys) {
1319 dprintk(state->verbose, FE_DEBUG, 1, "Delivery System -- DVB-S");
1320 /* FECM/Viterbi ON */
1321 reg = stb0899_read_reg(state, STB0899_FECM);
1322 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1323 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1324 stb0899_write_reg(state, STB0899_FECM, reg);
1326 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1327 stb0899_write_reg(state, STB0899_TSULC, 0x40);
1328 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1329 stb0899_write_reg(state, STB0899_TSLPL, 0x12);
1331 reg = stb0899_read_reg(state, STB0899_TSTRES);
1332 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1333 stb0899_write_reg(state, STB0899_TSTRES, reg);
1335 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1336 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1337 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1339 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1340 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1342 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 1);
1343 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1345 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1348 /* FECM/Viterbi OFF */
1349 reg = stb0899_read_reg(state, STB0899_FECM);
1350 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1351 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 0);
1352 stb0899_write_reg(state, STB0899_FECM, reg);
1354 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1355 stb0899_write_reg(state, STB0899_TSULC, 0x42);
1356 stb0899_write_reg(state, STB0899_RSLLC, 0x40);
1357 stb0899_write_reg(state, STB0899_TSLPL, 0x02);
1359 reg = stb0899_read_reg(state, STB0899_TSTRES);
1360 STB0899_SETFIELD_VAL(FRESLDPC, reg, 0);
1361 stb0899_write_reg(state, STB0899_TSTRES, reg);
1363 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1364 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 0);
1365 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 0);
1367 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 0);
1368 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 0);
1370 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 0);
1371 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1373 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 0);
1376 /* FECM/Viterbi ON */
1377 reg = stb0899_read_reg(state, STB0899_FECM);
1378 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 1);
1379 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1380 stb0899_write_reg(state, STB0899_FECM, reg);
1382 stb0899_write_reg(state, STB0899_RSULC, 0xa1);
1383 stb0899_write_reg(state, STB0899_TSULC, 0x61);
1384 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1386 reg = stb0899_read_reg(state, STB0899_TSTRES);
1387 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1388 stb0899_write_reg(state, STB0899_TSTRES, reg);
1390 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1391 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1392 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1394 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1395 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1397 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1399 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1402 dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system");
1405 STB0899_SETFIELD_VAL(STOP_CKADCI108, stop_clk[0], 0);
1406 stb0899_write_regs(state, STB0899_STOPCLK1, stop_clk, 2);
1410 * stb0899_set_iterations
1411 * set the LDPC iteration scale function
1413 static void stb0899_set_iterations(struct stb0899_state *state)
1415 struct stb0899_internal *internal = &state->internal;
1416 struct stb0899_config *config = state->config;
1421 iter_scale = 17 * (internal->master_clk / 1000);
1422 iter_scale += 410000;
1423 iter_scale /= (internal->srate / 1000000);
1426 if (iter_scale > config->ldpc_max_iter)
1427 iter_scale = config->ldpc_max_iter;
1429 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, MAX_ITER);
1430 STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale);
1431 stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg);
1434 static enum dvbfe_search stb0899_search(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
1436 struct stb0899_state *state = fe->demodulator_priv;
1437 struct stb0899_params *i_params = &state->params;
1438 struct stb0899_internal *internal = &state->internal;
1439 struct stb0899_config *config = state->config;
1440 struct dtv_frontend_properties *props = &fe->dtv_property_cache;
1442 u32 SearchRange, gain;
1444 i_params->freq = p->frequency;
1445 i_params->srate = p->u.qpsk.symbol_rate;
1446 state->delsys = props->delivery_system;
1447 dprintk(state->verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys);
1449 SearchRange = 10000000;
1450 dprintk(state->verbose, FE_DEBUG, 1, "Frequency=%d, Srate=%d", i_params->freq, i_params->srate);
1451 /* checking Search Range is meaningless for a fixed 3 Mhz */
1452 if (INRANGE(i_params->srate, 1000000, 45000000)) {
1453 dprintk(state->verbose, FE_DEBUG, 1, "Parameters IN RANGE");
1454 stb0899_set_delivery(state);
1456 if (state->config->tuner_set_rfsiggain) {
1457 if (internal->srate > 15000000)
1458 gain = 8; /* 15Mb < srate < 45Mb, gain = 8dB */
1459 else if (internal->srate > 5000000)
1460 gain = 12; /* 5Mb < srate < 15Mb, gain = 12dB */
1462 gain = 14; /* 1Mb < srate < 5Mb, gain = 14db */
1463 state->config->tuner_set_rfsiggain(fe, gain);
1466 if (i_params->srate <= 5000000)
1467 stb0899_set_mclk(state, config->lo_clk);
1469 stb0899_set_mclk(state, config->hi_clk);
1471 switch (state->delsys) {
1474 dprintk(state->verbose, FE_DEBUG, 1, "DVB-S delivery system");
1475 internal->freq = i_params->freq;
1476 internal->srate = i_params->srate;
1478 * search = user search range +
1480 * 2 * Tuner_step_size +
1481 * 10% of the symbol rate
1483 internal->srch_range = SearchRange + 1500000 + (i_params->srate / 5);
1484 internal->derot_percent = 30;
1486 /* What to do for tuners having no bandwidth setup ? */
1487 /* enable tuner I/O */
1488 stb0899_i2c_gate_ctrl(&state->frontend, 1);
1490 if (state->config->tuner_set_bandwidth)
1491 state->config->tuner_set_bandwidth(fe, (13 * (stb0899_carr_width(state) + SearchRange)) / 10);
1492 if (state->config->tuner_get_bandwidth)
1493 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1495 /* disable tuner I/O */
1496 stb0899_i2c_gate_ctrl(&state->frontend, 0);
1498 /* Set DVB-S1 AGC */
1499 stb0899_write_reg(state, STB0899_AGCRFCFG, 0x11);
1501 /* Run the search algorithm */
1502 dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S search algo ..");
1503 if (stb0899_dvbs_algo(state) == RANGEOK) {
1505 dprintk(state->verbose, FE_DEBUG, 1,
1506 "-------------------------------------> DVB-S LOCK !");
1508 // stb0899_write_reg(state, STB0899_ERRCTRL1, 0x3d); /* Viterbi Errors */
1509 // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1510 // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1511 // dprintk(state->verbose, FE_DEBUG, 1, "VSTATUS=0x%02x", internal->v_status);
1512 // dprintk(state->verbose, FE_DEBUG, 1, "ERR_CTRL=0x%02x", internal->err_ctrl);
1514 return DVBFE_ALGO_SEARCH_SUCCESS;
1518 return DVBFE_ALGO_SEARCH_FAILED;
1522 internal->freq = i_params->freq;
1523 internal->srate = i_params->srate;
1524 internal->srch_range = SearchRange;
1526 /* enable tuner I/O */
1527 stb0899_i2c_gate_ctrl(&state->frontend, 1);
1529 if (state->config->tuner_set_bandwidth)
1530 state->config->tuner_set_bandwidth(fe, (stb0899_carr_width(state) + SearchRange));
1531 if (state->config->tuner_get_bandwidth)
1532 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1534 /* disable tuner I/O */
1535 stb0899_i2c_gate_ctrl(&state->frontend, 0);
1537 // pParams->SpectralInv = pSearch->IQ_Inversion;
1539 /* Set DVB-S2 AGC */
1540 stb0899_write_reg(state, STB0899_AGCRFCFG, 0x1c);
1542 /* Set IterScale =f(MCLK,SYMB) */
1543 stb0899_set_iterations(state);
1545 /* Run the search algorithm */
1546 dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S2 search algo ..");
1547 if (stb0899_dvbs2_algo(state) == DVBS2_FEC_LOCK) {
1549 dprintk(state->verbose, FE_DEBUG, 1,
1550 "-------------------------------------> DVB-S2 LOCK !");
1552 // stb0899_write_reg(state, STB0899_ERRCTRL1, 0xb6); /* Packet Errors */
1553 // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1554 // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1556 return DVBFE_ALGO_SEARCH_SUCCESS;
1560 return DVBFE_ALGO_SEARCH_FAILED;
1564 dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system");
1565 return DVBFE_ALGO_SEARCH_INVALID;
1569 return DVBFE_ALGO_SEARCH_ERROR;
1573 * periodically check the signal level against a specified
1574 * threshold level and perform derotator centering.
1575 * called once we have a lock from a successful search
1578 * Will be called periodically called to maintain the
1581 * Will be used to get parameters as well as info from
1582 * the decoded baseband header
1584 * Once a new lock has established, the internal state
1585 * frequency (internal->freq) is updated
1587 static int stb0899_track(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
1592 static int stb0899_get_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
1594 struct stb0899_state *state = fe->demodulator_priv;
1595 struct stb0899_internal *internal = &state->internal;
1597 dprintk(state->verbose, FE_DEBUG, 1, "Get params");
1598 p->u.qpsk.symbol_rate = internal->srate;
1603 static enum dvbfe_algo stb0899_frontend_algo(struct dvb_frontend *fe)
1605 return DVBFE_ALGO_CUSTOM;
1608 static struct dvb_frontend_ops stb0899_ops = {
1611 .name = "STB0899 Multistandard",
1613 .frequency_min = 950000,
1614 .frequency_max = 2150000,
1615 .frequency_stepsize = 0,
1616 .frequency_tolerance = 0,
1617 .symbol_rate_min = 5000000,
1618 .symbol_rate_max = 45000000,
1620 .caps = FE_CAN_INVERSION_AUTO |
1622 FE_CAN_2G_MODULATION |
1626 .release = stb0899_release,
1627 .init = stb0899_init,
1628 .sleep = stb0899_sleep,
1629 // .wakeup = stb0899_wakeup,
1631 .i2c_gate_ctrl = stb0899_i2c_gate_ctrl,
1633 .get_frontend_algo = stb0899_frontend_algo,
1634 .search = stb0899_search,
1635 .track = stb0899_track,
1636 .get_frontend = stb0899_get_frontend,
1639 .read_status = stb0899_read_status,
1640 .read_snr = stb0899_read_snr,
1641 .read_signal_strength = stb0899_read_signal_strength,
1642 .read_ber = stb0899_read_ber,
1644 .set_voltage = stb0899_set_voltage,
1645 .set_tone = stb0899_set_tone,
1647 .diseqc_send_master_cmd = stb0899_send_diseqc_msg,
1648 .diseqc_recv_slave_reply = stb0899_recv_slave_reply,
1649 .diseqc_send_burst = stb0899_send_diseqc_burst,
1652 struct dvb_frontend *stb0899_attach(struct stb0899_config *config, struct i2c_adapter *i2c)
1654 struct stb0899_state *state = NULL;
1655 enum stb0899_inversion inversion;
1657 state = kzalloc(sizeof (struct stb0899_state), GFP_KERNEL);
1661 inversion = config->inversion;
1662 state->verbose = &verbose;
1663 state->config = config;
1665 state->frontend.ops = stb0899_ops;
1666 state->frontend.demodulator_priv = state;
1667 state->internal.inversion = inversion;
1669 stb0899_wakeup(&state->frontend);
1670 if (stb0899_get_dev_id(state) == -ENODEV) {
1671 printk("%s: Exiting .. !\n", __func__);
1675 printk("%s: Attaching STB0899 \n", __func__);
1676 return &state->frontend;
1682 EXPORT_SYMBOL(stb0899_attach);
1683 MODULE_PARM_DESC(verbose, "Set Verbosity level");
1684 MODULE_AUTHOR("Manu Abraham");
1685 MODULE_DESCRIPTION("STB0899 Multi-Std frontend");
1686 MODULE_LICENSE("GPL");