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
= 0;//1;
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 static struct stb0899_tab stb0899_quant_tab
[] = {
179 /* DVB-S2 Es/N0 estimate in dB/100 vs read value */
180 static struct stb0899_tab stb0899_est_tab
[] = {
220 static 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(state
->verbose
, FE_ERROR
, 1,
245 "Read error, Reg=[0x%02x], Status=%d",
248 return ret
< 0 ? ret
: -EREMOTEIO
;
250 if (unlikely(*state
->verbose
>= FE_DEBUGREG
))
251 dprintk(state
->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
, u32 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(state
->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(state
->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(state
->verbose
, FE_DEBUG
, 1, "state->config=%p", state
->config
);
574 mdiv
= ((6 * Mclk
) / state
->config
->xtal_freq
) - 1;
575 dprintk(state
->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(state
->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(state
->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(state
->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(state
->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(state
->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
;
827 struct dvb_diseqc_slave_reply rx_data;
829 u8 f22_tx
, f22_rx
, reg
;
831 u32 mclk
, tx_freq
= 22000;/* count = 0, i; */
832 tx_data
.msg
[0] = 0xe2;
834 reg
= stb0899_read_reg(state
, STB0899_DISCNTRL2
);
835 STB0899_SETFIELD_VAL(ONECHIP_TRX
, reg
, 0);
836 stb0899_write_reg(state
, STB0899_DISCNTRL2
, reg
);
839 reg
= stb0899_read_reg(state
, STB0899_DISCNTRL1
);
840 STB0899_SETFIELD_VAL(DISEQCRESET
, reg
, 1);
841 stb0899_write_reg(state
, STB0899_DISCNTRL1
, reg
);
843 reg
= stb0899_read_reg(state
, STB0899_DISCNTRL1
);
844 STB0899_SETFIELD_VAL(DISEQCRESET
, reg
, 0);
845 stb0899_write_reg(state
, STB0899_DISCNTRL1
, reg
);
847 mclk
= stb0899_get_mclk(state
);
848 f22_tx
= mclk
/ (tx_freq
* 32);
849 stb0899_write_reg(state
, STB0899_DISF22
, f22_tx
); /* DiSEqC Tx freq */
850 state
->rx_freq
= 20000;
851 f22_rx
= mclk
/ (state
->rx_freq
* 32);
856 static int stb0899_sleep(struct dvb_frontend
*fe
)
858 struct stb0899_state
*state
= fe
->demodulator_priv
;
862 dprintk(state
->verbose
, FE_DEBUG
, 1, "Going to Sleep .. (Really tired .. :-))");
863 /* post process event */
864 stb0899_postproc(state
, STB0899_POSTPROC_GPIO_POWER
, 0);
869 static int stb0899_wakeup(struct dvb_frontend
*fe
)
872 struct stb0899_state
*state
= fe
->demodulator_priv
;
874 if ((rc
= stb0899_write_reg(state
, STB0899_SYNTCTRL
, STB0899_SELOSCI
)))
876 /* Activate all clocks; DVB-S2 registers are inaccessible otherwise. */
877 if ((rc
= stb0899_write_reg(state
, STB0899_STOPCLK1
, 0x00)))
879 if ((rc
= stb0899_write_reg(state
, STB0899_STOPCLK2
, 0x00)))
882 /* post process event */
883 stb0899_postproc(state
, STB0899_POSTPROC_GPIO_POWER
, 1);
888 static int stb0899_init(struct dvb_frontend
*fe
)
891 struct stb0899_state
*state
= fe
->demodulator_priv
;
892 struct stb0899_config
*config
= state
->config
;
894 dprintk(state
->verbose
, FE_DEBUG
, 1, "Initializing STB0899 ... ");
897 dprintk(state
->verbose
, FE_DEBUG
, 1, "init device");
898 for (i
= 0; config
->init_dev
[i
].address
!= 0xffff; i
++)
899 stb0899_write_reg(state
, config
->init_dev
[i
].address
, config
->init_dev
[i
].data
);
901 dprintk(state
->verbose
, FE_DEBUG
, 1, "init S2 demod");
903 for (i
= 0; config
->init_s2_demod
[i
].offset
!= 0xffff; i
++)
904 stb0899_write_s2reg(state
, STB0899_S2DEMOD
,
905 config
->init_s2_demod
[i
].base_address
,
906 config
->init_s2_demod
[i
].offset
,
907 config
->init_s2_demod
[i
].data
);
909 dprintk(state
->verbose
, FE_DEBUG
, 1, "init S1 demod");
911 for (i
= 0; config
->init_s1_demod
[i
].address
!= 0xffff; i
++)
912 stb0899_write_reg(state
, config
->init_s1_demod
[i
].address
, config
->init_s1_demod
[i
].data
);
914 dprintk(state
->verbose
, FE_DEBUG
, 1, "init S2 FEC");
916 for (i
= 0; config
->init_s2_fec
[i
].offset
!= 0xffff; i
++)
917 stb0899_write_s2reg(state
, STB0899_S2FEC
,
918 config
->init_s2_fec
[i
].base_address
,
919 config
->init_s2_fec
[i
].offset
,
920 config
->init_s2_fec
[i
].data
);
922 dprintk(state
->verbose
, FE_DEBUG
, 1, "init TST");
924 for (i
= 0; config
->init_tst
[i
].address
!= 0xffff; i
++)
925 stb0899_write_reg(state
, config
->init_tst
[i
].address
, config
->init_tst
[i
].data
);
927 stb0899_init_calc(state
);
928 stb0899_diseqc_init(state
);
933 static int stb0899_table_lookup(const struct stb0899_tab
*tab
, int max
, int val
)
938 if (val
< tab
[min
].read
)
940 else if (val
>= tab
[max
].read
)
943 while ((max
- min
) > 1) {
944 med
= (max
+ min
) / 2;
945 if (val
>= tab
[min
].read
&& val
< tab
[med
].read
)
950 res
= ((val
- tab
[min
].read
) *
951 (tab
[max
].real
- tab
[min
].real
) /
952 (tab
[max
].read
- tab
[min
].read
)) +
959 static int stb0899_read_signal_strength(struct dvb_frontend
*fe
, u16
*strength
)
961 struct stb0899_state
*state
= fe
->demodulator_priv
;
962 struct stb0899_internal
*internal
= &state
->internal
;
966 switch (state
->delsys
) {
969 if (internal
->lock
) {
970 reg
= stb0899_read_reg(state
, STB0899_VSTATUS
);
971 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT
, reg
)) {
973 reg
= stb0899_read_reg(state
, STB0899_AGCIQIN
);
974 val
= (s32
)(s8
)STB0899_GETFIELD(AGCIQVALUE
, reg
);
976 *strength
= stb0899_table_lookup(stb0899_dvbsrf_tab
, ARRAY_SIZE(stb0899_dvbsrf_tab
) - 1, val
);
978 dprintk(state
->verbose
, FE_DEBUG
, 1, "AGCIQVALUE = 0x%02x, C = %d * 0.1 dBm",
979 val
& 0xff, *strength
);
984 if (internal
->lock
) {
985 reg
= STB0899_READ_S2REG(STB0899_DEMOD
, IF_AGC_GAIN
);
986 val
= STB0899_GETFIELD(IF_AGC_GAIN
, reg
);
988 *strength
= stb0899_table_lookup(stb0899_dvbs2rf_tab
, ARRAY_SIZE(stb0899_dvbs2rf_tab
) - 1, val
);
990 dprintk(state
->verbose
, FE_DEBUG
, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm",
991 val
& 0x3fff, *strength
);
995 dprintk(state
->verbose
, FE_DEBUG
, 1, "Unsupported delivery system");
1002 static int stb0899_read_snr(struct dvb_frontend
*fe
, u16
*snr
)
1004 struct stb0899_state
*state
= fe
->demodulator_priv
;
1005 struct stb0899_internal
*internal
= &state
->internal
;
1007 unsigned int val
, quant
, quantn
= -1, est
, estn
= -1;
1011 reg
= stb0899_read_reg(state
, STB0899_VSTATUS
);
1012 switch (state
->delsys
) {
1015 if (internal
->lock
) {
1016 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT
, reg
)) {
1018 stb0899_read_regs(state
, STB0899_NIRM
, buf
, 2);
1019 val
= MAKEWORD16(buf
[0], buf
[1]);
1021 *snr
= stb0899_table_lookup(stb0899_cn_tab
, ARRAY_SIZE(stb0899_cn_tab
) - 1, val
);
1022 dprintk(state
->verbose
, FE_DEBUG
, 1, "NIR = 0x%02x%02x = %u, C/N = %d * 0.1 dBm\n",
1023 buf
[0], buf
[1], val
, *snr
);
1028 if (internal
->lock
) {
1029 reg
= STB0899_READ_S2REG(STB0899_S2DEMOD
, UWP_CNTRL1
);
1030 quant
= STB0899_GETFIELD(UWP_ESN0_QUANT
, reg
);
1031 reg
= STB0899_READ_S2REG(STB0899_S2DEMOD
, UWP_STAT2
);
1032 est
= STB0899_GETFIELD(ESN0_EST
, reg
);
1034 val
= 301; /* C/N = 30.1 dB */
1036 val
= 270; /* C/N = 27.0 dB */
1038 /* quantn = 100 * log(quant^2) */
1039 quantn
= stb0899_table_lookup(stb0899_quant_tab
, ARRAY_SIZE(stb0899_quant_tab
) - 1, quant
* 100);
1040 /* estn = 100 * log(est) */
1041 estn
= stb0899_table_lookup(stb0899_est_tab
, ARRAY_SIZE(stb0899_est_tab
) - 1, est
);
1042 /* snr(dBm/10) = -10*(log(est)-log(quant^2)) => snr(dBm/10) = (100*log(quant^2)-100*log(est))/10 */
1043 val
= (quantn
- estn
) / 10;
1046 dprintk(state
->verbose
, FE_DEBUG
, 1, "Es/N0 quant = %d (%d) estimate = %u (%d), C/N = %d * 0.1 dBm",
1047 quant
, quantn
, est
, estn
, val
);
1051 dprintk(state
->verbose
, FE_DEBUG
, 1, "Unsupported delivery system");
1058 static int stb0899_read_status(struct dvb_frontend
*fe
, enum fe_status
*status
)
1060 struct stb0899_state
*state
= fe
->demodulator_priv
;
1061 struct stb0899_internal
*internal
= &state
->internal
;
1065 switch (state
->delsys
) {
1068 dprintk(state
->verbose
, FE_DEBUG
, 1, "Delivery system DVB-S/DSS");
1069 if (internal
->lock
) {
1070 reg
= stb0899_read_reg(state
, STB0899_VSTATUS
);
1071 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT
, reg
)) {
1072 dprintk(state
->verbose
, FE_DEBUG
, 1, "--------> FE_HAS_CARRIER | FE_HAS_LOCK");
1073 *status
|= FE_HAS_CARRIER
| FE_HAS_LOCK
;
1075 reg
= stb0899_read_reg(state
, STB0899_PLPARM
);
1076 if (STB0899_GETFIELD(VITCURPUN
, reg
)) {
1077 dprintk(state
->verbose
, FE_DEBUG
, 1, "--------> FE_HAS_VITERBI | FE_HAS_SYNC");
1078 *status
|= FE_HAS_VITERBI
| FE_HAS_SYNC
;
1079 /* post process event */
1080 stb0899_postproc(state
, STB0899_POSTPROC_GPIO_LOCK
, 1);
1086 dprintk(state
->verbose
, FE_DEBUG
, 1, "Delivery system DVB-S2");
1087 if (internal
->lock
) {
1088 reg
= STB0899_READ_S2REG(STB0899_S2DEMOD
, DMD_STAT2
);
1089 if (STB0899_GETFIELD(UWP_LOCK
, reg
) && STB0899_GETFIELD(CSM_LOCK
, reg
)) {
1090 *status
|= FE_HAS_CARRIER
;
1091 dprintk(state
->verbose
, FE_DEBUG
, 1,
1092 "UWP & CSM Lock ! ---> DVB-S2 FE_HAS_CARRIER");
1094 reg
= stb0899_read_reg(state
, STB0899_CFGPDELSTATUS1
);
1095 if (STB0899_GETFIELD(CFGPDELSTATUS_LOCK
, reg
)) {
1096 *status
|= FE_HAS_LOCK
;
1097 dprintk(state
->verbose
, FE_DEBUG
, 1,
1098 "Packet Delineator Locked ! -----> DVB-S2 FE_HAS_LOCK");
1101 if (STB0899_GETFIELD(CONTINUOUS_STREAM
, reg
)) {
1102 *status
|= FE_HAS_VITERBI
;
1103 dprintk(state
->verbose
, FE_DEBUG
, 1,
1104 "Packet Delineator found VITERBI ! -----> DVB-S2 FE_HAS_VITERBI");
1106 if (STB0899_GETFIELD(ACCEPTED_STREAM
, reg
)) {
1107 *status
|= FE_HAS_SYNC
;
1108 dprintk(state
->verbose
, FE_DEBUG
, 1,
1109 "Packet Delineator found SYNC ! -----> DVB-S2 FE_HAS_SYNC");
1110 /* post process event */
1111 stb0899_postproc(state
, STB0899_POSTPROC_GPIO_LOCK
, 1);
1117 dprintk(state
->verbose
, FE_DEBUG
, 1, "Unsupported delivery system");
1125 * viterbi error for DVB-S/DSS
1126 * packet error for DVB-S2
1127 * Bit Error Rate or Packet Error Rate * 10 ^ 7
1129 static int stb0899_read_ber(struct dvb_frontend
*fe
, u32
*ber
)
1131 struct stb0899_state
*state
= fe
->demodulator_priv
;
1132 struct stb0899_internal
*internal
= &state
->internal
;
1139 switch (state
->delsys
) {
1142 if (internal
->lock
) {
1143 /* average 5 BER values */
1144 for (i
= 0; i
< 5; i
++) {
1146 lsb
= stb0899_read_reg(state
, STB0899_ECNT1L
);
1147 msb
= stb0899_read_reg(state
, STB0899_ECNT1M
);
1148 *ber
+= MAKEWORD16(msb
, lsb
);
1152 if (STB0899_GETFIELD(VSTATUS_PRFVIT
, internal
->v_status
)) {
1155 /* ber = ber * 10 ^ 7 */
1156 *ber
/= (-1 + (1 << (2 * STB0899_GETFIELD(NOE
, internal
->err_ctrl
))));
1162 if (internal
->lock
) {
1163 /* Average 5 PER values */
1164 for (i
= 0; i
< 5; i
++) {
1166 lsb
= stb0899_read_reg(state
, STB0899_ECNT1L
);
1167 msb
= stb0899_read_reg(state
, STB0899_ECNT1M
);
1168 *ber
+= MAKEWORD16(msb
, lsb
);
1170 /* ber = ber * 10 ^ 7 */
1172 *ber
/= (-1 + (1 << (4 + 2 * STB0899_GETFIELD(NOE
, internal
->err_ctrl
))));
1176 dprintk(state
->verbose
, FE_DEBUG
, 1, "Unsupported delivery system");
1183 static int stb0899_set_voltage(struct dvb_frontend
*fe
, fe_sec_voltage_t voltage
)
1185 struct stb0899_state
*state
= fe
->demodulator_priv
;
1188 case SEC_VOLTAGE_13
:
1189 stb0899_write_reg(state
, STB0899_GPIO00CFG
, 0x82);
1190 stb0899_write_reg(state
, STB0899_GPIO01CFG
, 0x02);
1191 stb0899_write_reg(state
, STB0899_GPIO02CFG
, 0x00);
1193 case SEC_VOLTAGE_18
:
1194 stb0899_write_reg(state
, STB0899_GPIO00CFG
, 0x02);
1195 stb0899_write_reg(state
, STB0899_GPIO01CFG
, 0x02);
1196 stb0899_write_reg(state
, STB0899_GPIO02CFG
, 0x82);
1198 case SEC_VOLTAGE_OFF
:
1199 stb0899_write_reg(state
, STB0899_GPIO00CFG
, 0x82);
1200 stb0899_write_reg(state
, STB0899_GPIO01CFG
, 0x82);
1201 stb0899_write_reg(state
, STB0899_GPIO02CFG
, 0x82);
1210 static int stb0899_set_tone(struct dvb_frontend
*fe
, fe_sec_tone_mode_t tone
)
1212 struct stb0899_state
*state
= fe
->demodulator_priv
;
1213 struct stb0899_internal
*internal
= &state
->internal
;
1217 /* wait for diseqc idle */
1218 if (stb0899_wait_diseqc_txidle(state
, 100) < 0)
1223 div
= (internal
->master_clk
/ 100) / 5632;
1224 div
= (div
+ 5) / 10;
1225 stb0899_write_reg(state
, STB0899_DISEQCOCFG
, 0x66);
1226 reg
= stb0899_read_reg(state
, STB0899_ACRPRESC
);
1227 STB0899_SETFIELD_VAL(ACRPRESC
, reg
, 0x03);
1228 stb0899_write_reg(state
, STB0899_ACRPRESC
, reg
);
1229 stb0899_write_reg(state
, STB0899_ACRDIV1
, div
);
1232 stb0899_write_reg(state
, STB0899_DISEQCOCFG
, 0x20);
1240 int stb0899_i2c_gate_ctrl(struct dvb_frontend
*fe
, int enable
)
1243 struct stb0899_state
*state
= fe
->demodulator_priv
;
1245 i2c_stat
= stb0899_read_reg(state
, STB0899_I2CRPT
);
1250 dprintk(state
->verbose
, FE_DEBUG
, 1, "Enabling I2C Repeater ...");
1251 i2c_stat
|= STB0899_I2CTON
;
1252 if (stb0899_write_reg(state
, STB0899_I2CRPT
, i2c_stat
) < 0)
1255 dprintk(state
->verbose
, FE_DEBUG
, 1, "Disabling I2C Repeater ...");
1256 i2c_stat
&= ~STB0899_I2CTON
;
1257 if (stb0899_write_reg(state
, STB0899_I2CRPT
, i2c_stat
) < 0)
1262 dprintk(state
->verbose
, FE_ERROR
, 1, "I2C Repeater control failed");
1267 static inline void CONVERT32(u32 x
, char *str
)
1269 *str
++ = (x
>> 24) & 0xff;
1270 *str
++ = (x
>> 16) & 0xff;
1271 *str
++ = (x
>> 8) & 0xff;
1272 *str
++ = (x
>> 0) & 0xff;
1276 int stb0899_get_dev_id(struct stb0899_state
*state
)
1278 u8 chip_id
, release
;
1280 u32 demod_ver
= 0, fec_ver
= 0;
1281 char demod_str
[5] = { 0 };
1282 char fec_str
[5] = { 0 };
1284 id
= stb0899_read_reg(state
, STB0899_DEV_ID
);
1285 dprintk(state
->verbose
, FE_DEBUG
, 1, "ID reg=[0x%02x]", id
);
1286 chip_id
= STB0899_GETFIELD(CHIP_ID
, id
);
1287 release
= STB0899_GETFIELD(CHIP_REL
, id
);
1289 dprintk(state
->verbose
, FE_ERROR
, 1, "Device ID=[%d], Release=[%d]",
1292 CONVERT32(STB0899_READ_S2REG(STB0899_S2DEMOD
, DMD_CORE_ID
), (char *)&demod_str
);
1294 demod_ver
= STB0899_READ_S2REG(STB0899_S2DEMOD
, DMD_VERSION_ID
);
1295 dprintk(state
->verbose
, FE_ERROR
, 1, "Demodulator Core ID=[%s], Version=[%d]", (char *) &demod_str
, demod_ver
);
1296 CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC
, FEC_CORE_ID_REG
), (char *)&fec_str
);
1297 fec_ver
= STB0899_READ_S2REG(STB0899_S2FEC
, FEC_VER_ID_REG
);
1298 if (! (chip_id
> 0)) {
1299 dprintk(state
->verbose
, FE_ERROR
, 1, "couldn't find a STB 0899");
1303 dprintk(state
->verbose
, FE_ERROR
, 1, "FEC Core ID=[%s], Version=[%d]", (char*) &fec_str
, fec_ver
);
1308 static void stb0899_set_delivery(struct stb0899_state
*state
)
1313 stop_clk
[0] = stb0899_read_reg(state
, STB0899_STOPCLK1
);
1314 stop_clk
[1] = stb0899_read_reg(state
, STB0899_STOPCLK2
);
1316 switch (state
->delsys
) {
1318 dprintk(state
->verbose
, FE_DEBUG
, 1, "Delivery System -- DVB-S");
1319 /* FECM/Viterbi ON */
1320 reg
= stb0899_read_reg(state
, STB0899_FECM
);
1321 STB0899_SETFIELD_VAL(FECM_RSVD0
, reg
, 0);
1322 STB0899_SETFIELD_VAL(FECM_VITERBI_ON
, reg
, 1);
1323 stb0899_write_reg(state
, STB0899_FECM
, reg
);
1325 stb0899_write_reg(state
, STB0899_RSULC
, 0xb1);
1326 stb0899_write_reg(state
, STB0899_TSULC
, 0x40);
1327 stb0899_write_reg(state
, STB0899_RSLLC
, 0x42);
1328 stb0899_write_reg(state
, STB0899_TSLPL
, 0x12);
1330 reg
= stb0899_read_reg(state
, STB0899_TSTRES
);
1331 STB0899_SETFIELD_VAL(FRESLDPC
, reg
, 1);
1332 stb0899_write_reg(state
, STB0899_TSTRES
, reg
);
1334 STB0899_SETFIELD_VAL(STOP_CHK8PSK
, stop_clk
[0], 1);
1335 STB0899_SETFIELD_VAL(STOP_CKFEC108
, stop_clk
[0], 1);
1336 STB0899_SETFIELD_VAL(STOP_CKFEC216
, stop_clk
[0], 1);
1338 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108
, stop_clk
[1], 1);
1339 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216
, stop_clk
[1], 1);
1341 STB0899_SETFIELD_VAL(STOP_CKINTBUF216
, stop_clk
[0], 1);
1342 STB0899_SETFIELD_VAL(STOP_CKCORE216
, stop_clk
[0], 0);
1344 STB0899_SETFIELD_VAL(STOP_CKS2DMD108
, stop_clk
[1], 1);
1347 /* FECM/Viterbi OFF */
1348 reg
= stb0899_read_reg(state
, STB0899_FECM
);
1349 STB0899_SETFIELD_VAL(FECM_RSVD0
, reg
, 0);
1350 STB0899_SETFIELD_VAL(FECM_VITERBI_ON
, reg
, 0);
1351 stb0899_write_reg(state
, STB0899_FECM
, reg
);
1353 stb0899_write_reg(state
, STB0899_RSULC
, 0xb1);
1354 stb0899_write_reg(state
, STB0899_TSULC
, 0x42);
1355 stb0899_write_reg(state
, STB0899_RSLLC
, 0x40);
1356 stb0899_write_reg(state
, STB0899_TSLPL
, 0x02);
1358 reg
= stb0899_read_reg(state
, STB0899_TSTRES
);
1359 STB0899_SETFIELD_VAL(FRESLDPC
, reg
, 0);
1360 stb0899_write_reg(state
, STB0899_TSTRES
, reg
);
1362 STB0899_SETFIELD_VAL(STOP_CHK8PSK
, stop_clk
[0], 1);
1363 STB0899_SETFIELD_VAL(STOP_CKFEC108
, stop_clk
[0], 0);
1364 STB0899_SETFIELD_VAL(STOP_CKFEC216
, stop_clk
[0], 0);
1366 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108
, stop_clk
[1], 0);
1367 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216
, stop_clk
[1], 0);
1369 STB0899_SETFIELD_VAL(STOP_CKINTBUF216
, stop_clk
[0], 0);
1370 STB0899_SETFIELD_VAL(STOP_CKCORE216
, stop_clk
[0], 0);
1372 STB0899_SETFIELD_VAL(STOP_CKS2DMD108
, stop_clk
[1], 0);
1375 /* FECM/Viterbi ON */
1376 reg
= stb0899_read_reg(state
, STB0899_FECM
);
1377 STB0899_SETFIELD_VAL(FECM_RSVD0
, reg
, 1);
1378 STB0899_SETFIELD_VAL(FECM_VITERBI_ON
, reg
, 1);
1379 stb0899_write_reg(state
, STB0899_FECM
, reg
);
1381 stb0899_write_reg(state
, STB0899_RSULC
, 0xa1);
1382 stb0899_write_reg(state
, STB0899_TSULC
, 0x61);
1383 stb0899_write_reg(state
, STB0899_RSLLC
, 0x42);
1385 reg
= stb0899_read_reg(state
, STB0899_TSTRES
);
1386 STB0899_SETFIELD_VAL(FRESLDPC
, reg
, 1);
1387 stb0899_write_reg(state
, STB0899_TSTRES
, reg
);
1389 STB0899_SETFIELD_VAL(STOP_CHK8PSK
, stop_clk
[0], 1);
1390 STB0899_SETFIELD_VAL(STOP_CKFEC108
, stop_clk
[0], 1);
1391 STB0899_SETFIELD_VAL(STOP_CKFEC216
, stop_clk
[0], 1);
1393 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108
, stop_clk
[1], 1);
1394 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216
, stop_clk
[1], 1);
1396 STB0899_SETFIELD_VAL(STOP_CKCORE216
, stop_clk
[0], 0);
1398 STB0899_SETFIELD_VAL(STOP_CKS2DMD108
, stop_clk
[1], 1);
1401 dprintk(state
->verbose
, FE_ERROR
, 1, "Unsupported delivery system");
1404 STB0899_SETFIELD_VAL(STOP_CKADCI108
, stop_clk
[0], 0);
1405 stb0899_write_regs(state
, STB0899_STOPCLK1
, stop_clk
, 2);
1409 * stb0899_set_iterations
1410 * set the LDPC iteration scale function
1412 static void stb0899_set_iterations(struct stb0899_state
*state
)
1414 struct stb0899_internal
*internal
= &state
->internal
;
1415 struct stb0899_config
*config
= state
->config
;
1420 iter_scale
= 17 * (internal
->master_clk
/ 1000);
1421 iter_scale
+= 410000;
1422 iter_scale
/= (internal
->srate
/ 1000000);
1425 if (iter_scale
> config
->ldpc_max_iter
)
1426 iter_scale
= config
->ldpc_max_iter
;
1428 reg
= STB0899_READ_S2REG(STB0899_S2DEMOD
, MAX_ITER
);
1429 STB0899_SETFIELD_VAL(MAX_ITERATIONS
, reg
, iter_scale
);
1430 stb0899_write_s2reg(state
, STB0899_S2DEMOD
, STB0899_BASE_MAX_ITER
, STB0899_OFF0_MAX_ITER
, reg
);
1433 static enum dvbfe_search
stb0899_search(struct dvb_frontend
*fe
, struct dvb_frontend_parameters
*p
)
1435 struct stb0899_state
*state
= fe
->demodulator_priv
;
1436 struct stb0899_params
*i_params
= &state
->params
;
1437 struct stb0899_internal
*internal
= &state
->internal
;
1438 struct stb0899_config
*config
= state
->config
;
1439 struct dtv_frontend_properties
*props
= &fe
->dtv_property_cache
;
1441 u32 SearchRange
, gain
;
1443 i_params
->freq
= p
->frequency
;
1444 i_params
->srate
= p
->u
.qpsk
.symbol_rate
;
1445 state
->delsys
= props
->delivery_system
;
1446 dprintk(state
->verbose
, FE_DEBUG
, 1, "delivery system=%d", state
->delsys
);
1448 SearchRange
= 10000000;
1449 dprintk(state
->verbose
, FE_DEBUG
, 1, "Frequency=%d, Srate=%d", i_params
->freq
, i_params
->srate
);
1450 /* checking Search Range is meaningless for a fixed 3 Mhz */
1451 if (INRANGE(i_params
->srate
, 1000000, 45000000)) {
1452 dprintk(state
->verbose
, FE_DEBUG
, 1, "Parameters IN RANGE");
1453 stb0899_set_delivery(state
);
1455 if (state
->config
->tuner_set_rfsiggain
) {
1456 if (internal
->srate
> 15000000)
1457 gain
= 8; /* 15Mb < srate < 45Mb, gain = 8dB */
1458 else if (internal
->srate
> 5000000)
1459 gain
= 12; /* 5Mb < srate < 15Mb, gain = 12dB */
1461 gain
= 14; /* 1Mb < srate < 5Mb, gain = 14db */
1462 state
->config
->tuner_set_rfsiggain(fe
, gain
);
1465 if (i_params
->srate
<= 5000000)
1466 stb0899_set_mclk(state
, config
->lo_clk
);
1468 stb0899_set_mclk(state
, config
->hi_clk
);
1470 switch (state
->delsys
) {
1473 dprintk(state
->verbose
, FE_DEBUG
, 1, "DVB-S delivery system");
1474 internal
->freq
= i_params
->freq
;
1475 internal
->srate
= i_params
->srate
;
1477 * search = user search range +
1479 * 2 * Tuner_step_size +
1480 * 10% of the symbol rate
1482 internal
->srch_range
= SearchRange
+ 1500000 + (i_params
->srate
/ 5);
1483 internal
->derot_percent
= 30;
1485 /* What to do for tuners having no bandwidth setup ? */
1486 /* enable tuner I/O */
1487 stb0899_i2c_gate_ctrl(&state
->frontend
, 1);
1489 if (state
->config
->tuner_set_bandwidth
)
1490 state
->config
->tuner_set_bandwidth(fe
, (13 * (stb0899_carr_width(state
) + SearchRange
)) / 10);
1491 if (state
->config
->tuner_get_bandwidth
)
1492 state
->config
->tuner_get_bandwidth(fe
, &internal
->tuner_bw
);
1494 /* disable tuner I/O */
1495 stb0899_i2c_gate_ctrl(&state
->frontend
, 0);
1497 /* Set DVB-S1 AGC */
1498 stb0899_write_reg(state
, STB0899_AGCRFCFG
, 0x11);
1500 /* Run the search algorithm */
1501 dprintk(state
->verbose
, FE_DEBUG
, 1, "running DVB-S search algo ..");
1502 if (stb0899_dvbs_algo(state
) == RANGEOK
) {
1504 dprintk(state
->verbose
, FE_DEBUG
, 1,
1505 "-------------------------------------> DVB-S LOCK !");
1507 // stb0899_write_reg(state, STB0899_ERRCTRL1, 0x3d); /* Viterbi Errors */
1508 // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1509 // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1510 // dprintk(state->verbose, FE_DEBUG, 1, "VSTATUS=0x%02x", internal->v_status);
1511 // dprintk(state->verbose, FE_DEBUG, 1, "ERR_CTRL=0x%02x", internal->err_ctrl);
1513 return DVBFE_ALGO_SEARCH_SUCCESS
;
1517 return DVBFE_ALGO_SEARCH_FAILED
;
1521 internal
->freq
= i_params
->freq
;
1522 internal
->srate
= i_params
->srate
;
1523 internal
->srch_range
= SearchRange
;
1525 /* enable tuner I/O */
1526 stb0899_i2c_gate_ctrl(&state
->frontend
, 1);
1528 if (state
->config
->tuner_set_bandwidth
)
1529 state
->config
->tuner_set_bandwidth(fe
, (stb0899_carr_width(state
) + SearchRange
));
1530 if (state
->config
->tuner_get_bandwidth
)
1531 state
->config
->tuner_get_bandwidth(fe
, &internal
->tuner_bw
);
1533 /* disable tuner I/O */
1534 stb0899_i2c_gate_ctrl(&state
->frontend
, 0);
1536 // pParams->SpectralInv = pSearch->IQ_Inversion;
1538 /* Set DVB-S2 AGC */
1539 stb0899_write_reg(state
, STB0899_AGCRFCFG
, 0x1c);
1541 /* Set IterScale =f(MCLK,SYMB) */
1542 stb0899_set_iterations(state
);
1544 /* Run the search algorithm */
1545 dprintk(state
->verbose
, FE_DEBUG
, 1, "running DVB-S2 search algo ..");
1546 if (stb0899_dvbs2_algo(state
) == DVBS2_FEC_LOCK
) {
1548 dprintk(state
->verbose
, FE_DEBUG
, 1,
1549 "-------------------------------------> DVB-S2 LOCK !");
1551 // stb0899_write_reg(state, STB0899_ERRCTRL1, 0xb6); /* Packet Errors */
1552 // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1553 // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1555 return DVBFE_ALGO_SEARCH_SUCCESS
;
1559 return DVBFE_ALGO_SEARCH_FAILED
;
1563 dprintk(state
->verbose
, FE_ERROR
, 1, "Unsupported delivery system");
1564 return DVBFE_ALGO_SEARCH_INVALID
;
1568 return DVBFE_ALGO_SEARCH_ERROR
;
1572 * periodically check the signal level against a specified
1573 * threshold level and perform derotator centering.
1574 * called once we have a lock from a succesful search
1577 * Will be called periodically called to maintain the
1580 * Will be used to get parameters as well as info from
1581 * the decoded baseband header
1583 * Once a new lock has established, the internal state
1584 * frequency (internal->freq) is updated
1586 static int stb0899_track(struct dvb_frontend
*fe
, struct dvb_frontend_parameters
*p
)
1591 static int stb0899_get_frontend(struct dvb_frontend
*fe
, struct dvb_frontend_parameters
*p
)
1593 struct stb0899_state
*state
= fe
->demodulator_priv
;
1594 struct stb0899_internal
*internal
= &state
->internal
;
1596 dprintk(state
->verbose
, FE_DEBUG
, 1, "Get params");
1597 p
->u
.qpsk
.symbol_rate
= internal
->srate
;
1602 static enum dvbfe_algo
stb0899_frontend_algo(struct dvb_frontend
*fe
)
1604 return DVBFE_ALGO_CUSTOM
;
1607 static struct dvb_frontend_ops stb0899_ops
= {
1610 .name
= "STB0899 Multistandard",
1612 .frequency_min
= 950000,
1613 .frequency_max
= 2150000,
1614 .frequency_stepsize
= 0,
1615 .frequency_tolerance
= 0,
1616 .symbol_rate_min
= 5000000,
1617 .symbol_rate_max
= 45000000,
1619 .caps
= FE_CAN_INVERSION_AUTO
|
1621 FE_CAN_2G_MODULATION
|
1625 .release
= stb0899_release
,
1626 .init
= stb0899_init
,
1627 .sleep
= stb0899_sleep
,
1628 // .wakeup = stb0899_wakeup,
1630 .i2c_gate_ctrl
= stb0899_i2c_gate_ctrl
,
1632 .get_frontend_algo
= stb0899_frontend_algo
,
1633 .search
= stb0899_search
,
1634 .track
= stb0899_track
,
1635 .get_frontend
= stb0899_get_frontend
,
1638 .read_status
= stb0899_read_status
,
1639 .read_snr
= stb0899_read_snr
,
1640 .read_signal_strength
= stb0899_read_signal_strength
,
1641 .read_ber
= stb0899_read_ber
,
1643 .set_voltage
= stb0899_set_voltage
,
1644 .set_tone
= stb0899_set_tone
,
1646 .diseqc_send_master_cmd
= stb0899_send_diseqc_msg
,
1647 .diseqc_recv_slave_reply
= stb0899_recv_slave_reply
,
1648 .diseqc_send_burst
= stb0899_send_diseqc_burst
,
1651 struct dvb_frontend
*stb0899_attach(struct stb0899_config
*config
, struct i2c_adapter
*i2c
)
1653 struct stb0899_state
*state
= NULL
;
1654 enum stb0899_inversion inversion
;
1656 state
= kzalloc(sizeof (struct stb0899_state
), GFP_KERNEL
);
1660 inversion
= config
->inversion
;
1661 state
->verbose
= &verbose
;
1662 state
->config
= config
;
1664 state
->frontend
.ops
= stb0899_ops
;
1665 state
->frontend
.demodulator_priv
= state
;
1666 state
->internal
.inversion
= inversion
;
1668 stb0899_wakeup(&state
->frontend
);
1669 if (stb0899_get_dev_id(state
) == -ENODEV
) {
1670 printk("%s: Exiting .. !\n", __func__
);
1674 printk("%s: Attaching STB0899 \n", __func__
);
1675 return &state
->frontend
;
1681 EXPORT_SYMBOL(stb0899_attach
);
1682 MODULE_PARM_DESC(verbose
, "Set Verbosity level");
1683 MODULE_AUTHOR("Manu Abraham");
1684 MODULE_DESCRIPTION("STB0899 Multi-Std frontend");
1685 MODULE_LICENSE("GPL");