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Commit 490c8684 authored by Darron Broad's avatar Darron Broad Committed by Mauro Carvalho Chehab
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V4L/DVB (9011): S2API: A number of cleanusp from the last 24 months. 

I was given these changes by Darron Broad and Igor Liplianin and represent a series
of patches they've been making to the cx24116 driver over the last two years.

Changes for handling symbolrates >30Ksps
Tone handling changes.
Diseqc support.
Sleep support, shutting down the clocks correctly.
Cleanup on ROLL_OFF and PILOT support.

*** ST - We need to cleanup the sysclt control, this is abnormal
    in a demod driver. We should work towards understanding the missing
    API's and ensure we have them in S2API.  ***
Signed-off-by: default avatarSteven Toth <stoth@linuxtv.org>
Signed-off-by: default avatarDarron Broad <darron@kewl.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent a611d0ca
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Showing with 617 additions and 191 deletions
drivers/media/dvb/frontends/cx24116.c
View file @ 490c8684
......@@ -2,6 +2,18 @@
Conexant cx24116/cx24118 - DVBS/S2 Satellite demod/tuner driver
Copyright (C) 2006-2008 Steven Toth <stoth@hauppauge.com>
Copyright (C) 2006-2007 Georg Acher
Copyright (C) 2007-2008 Darron Broad
March 2007
Fixed some bugs.
Added diseqc support.
Added corrected signal strength support.
August 2007
Sync with legacy version.
Some clean ups.
Copyright (C) 2008 Igor Liplianin
September, 9th 2008
Fixed locking on high symbol rates (>30000).
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
......@@ -18,51 +30,69 @@
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Updates by Darron Broad 2007.
*
* March
* Fixed some bugs.
* Added diseqc support.
* Added corrected signal strength support.
*
* August
* Sync with legacy version.
* Some clean ups.
*/
/* Updates by Igor Liplianin
*
* September, 9th 2008
* Fixed locking on high symbol rates (>30000).
*/
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/firmware.h>
#include <linux/sysctl.h>
#include "dvb_frontend.h"
#include "cx24116.h"
/*
* Fetch firmware in the following manner.
*
* #!/bin/sh
* wget ftp://167.206.143.11/outgoing/Oxford/88x_2_117_24275_1_INF.zip
* unzip 88x_2_117_24275_1_INF.zip
* dd if=Driver88/hcw88bda.sys of=dvb-fe-cx24116.fw skip=81768 bs=1 count=32522
*/
static int debug = 0;
#define dprintk(args...) \
do { \
if (debug) printk ("cx24116: " args); \
} while (0)
#define CX24116_DEFAULT_FIRMWARE "dvb-fe-cx24116.fw"
#define CX24116_SEARCH_RANGE_KHZ 5000
/* registers (TO BE COMPLETED) */
#define CX24116_REG_SIGNAL (0xd5)
/* known registers */
#define CX24116_REG_COMMAND (0x00) /* command args 0x00..0x1e */
#define CX24116_REG_EXECUTE (0x1f) /* execute command */
#define CX24116_REG_MAILBOX (0x96) /* FW or multipurpose mailbox? */
#define CX24116_REG_RESET (0x20) /* reset status > 0 */
#define CX24116_REG_SIGNAL (0x9e) /* signal low */
#define CX24116_REG_SSTATUS (0x9d) /* signal high / status */
#define CX24116_REG_QSTATUS (0xbc)
#define CX24116_REG_QUALITY (0xd5)
#define CX24116_REG_BER0 (0xc9)
#define CX24116_REG_BER8 (0xc8)
#define CX24116_REG_BER16 (0xc7)
#define CX24116_REG_BER24 (0xc6)
#define CX24116_REG_UCB0 (0xcb)
#define CX24116_REG_UCB8 (0xca)
#define CX24116_REG_CLKDIV (0xf3)
#define CX24116_REG_RATEDIV (0xf9)
/* arg buffer size */
#define CX24116_ARGLEN (0x1e)
/* rolloff */
#define CX24116_ROLLOFF_020 (0x00)
#define CX24116_ROLLOFF_025 (0x01)
#define CX24116_ROLLOFF_035 (0x02)
/* pilot bit */
#define CX24116_PILOT (0x40)
/* signal status */
#define CX24116_HAS_SIGNAL (0x01)
#define CX24116_HAS_CARRIER (0x02)
#define CX24116_HAS_VITERBI (0x04)
#define CX24116_HAS_SYNCLOCK (0x08)
#define CX24116_HAS_UNKNOWN1 (0x10)
#define CX24116_HAS_UNKNOWN2 (0x20)
#define CX24116_STATUS_MASK (0x3f)
#define CX24116_SIGNAL_MASK (0xc0)
#define CX24116_DISEQC_TONEOFF (0) /* toneburst never sent */
#define CX24116_DISEQC_TONECACHE (1) /* toneburst cached */
#define CX24116_DISEQC_MESGCACHE (2) /* message cached */
/* arg offset for DiSEqC */
#define CX24116_DISEQC_BURST (1)
#define CX24116_DISEQC_ARG2_2 (2) /* unknown value=2 */
......@@ -75,21 +105,88 @@
#define CX24116_DISEQC_MINI_A (0)
#define CX24116_DISEQC_MINI_B (1)
static int debug = 0;
#define dprintk(args...) \
do { \
if (debug) printk ("cx24116: " args); \
} while (0)
/* DiSEqC tone burst */
static int toneburst = 1;
/* debug & toneburst sysctl */
static struct ctl_table_header *kernel_table_header;
static ctl_table toneburst_table[] = {
{
.ctl_name = 0,
.procname = "toneburst",
.data = &toneburst,
.maxlen = sizeof(int),
.mode = 0666,
.child = NULL,
.parent = NULL,
.proc_handler = &proc_dointvec,
.strategy = NULL,
.extra1 = NULL,
.extra2 = NULL,
},
{
.ctl_name = 0,
.procname = "debug",
.data = &debug,
.maxlen = sizeof(int),
.mode = 0666,
.child = NULL,
.parent = NULL,
.proc_handler = &proc_dointvec,
.strategy = NULL,
.extra1 = NULL,
.extra2 = NULL,
},
{0},
};
static ctl_table cx24116_table[] = {
{
.ctl_name = 0,
.procname = "cx24116",
.data = NULL,
.maxlen = 0,
.mode = 0555,
.child = toneburst_table,
.parent = NULL,
.proc_handler = NULL,
.strategy = NULL,
.extra1 = NULL,
.extra2 = NULL,
},
{0},
};
static ctl_table kernel_table[] = {
{
.ctl_name = CTL_DEV,
.procname = "dev",
.data = NULL,
.maxlen = 0,
.mode = 0555,
.child = cx24116_table,
.parent = NULL,
.proc_handler = NULL,
.strategy = NULL,
.extra1 = NULL,
.extra2 = NULL,
},
{0},
};
enum cmds
{
CMD_INIT_CMD10 = 0x10,
CMD_SET_VCO = 0x10,
CMD_TUNEREQUEST = 0x11,
CMD_INIT_CMD13 = 0x13,
CMD_INIT_CMD14 = 0x14,
CMD_SEND_DISEQC = 0x21,
CMD_MPEGCONFIG = 0x13,
CMD_TUNERINIT = 0x14,
CMD_BANDWIDTH = 0x15,
CMD_GETAGC = 0x19,
CMD_LNBCONFIG = 0x20,
CMD_LNBSEND = 0x21, /* Formerly CMD_SEND_DISEQC */
CMD_SET_TONEPRE = 0x22,
CMD_SET_TONE = 0x23,
CMD_UPDFWVERS = 0x35,
CMD_TUNERSLEEP = 0x36,
CMD_AGCCONTROL = 0x3b, /* Unknown */
};
/* The Demod/Tuner can't easily provide these, we cache them */
......@@ -101,11 +198,14 @@ struct cx24116_tuning
fe_code_rate_t fec;
fe_modulation_t modulation;
fe_pilot_t pilot;
fe_rolloff_t rolloff;
/* Demod values */
u8 fec_val;
u8 fec_mask;
u8 inversion_val;
u8 rolloff_val;
};
/* Basic commands that are sent to the firmware */
......@@ -127,6 +227,7 @@ struct cx24116_state
u8 skip_fw_load;
u8 burst;
struct cx24116_cmd dsec_cmd;
};
static int cx24116_writereg(struct cx24116_state* state, int reg, int data)
......@@ -233,6 +334,66 @@ static int cx24116_set_inversion(struct cx24116_state* state, fe_spectral_invers
return 0;
}
/*
* modfec (modulation and FEC)
* ===========================
*
* MOD FEC mask/val standard
* ---- -------- ----------- --------
* QPSK FEC_1_2 0x02 0x02+X DVB-S
* QPSK FEC_2_3 0x04 0x02+X DVB-S
* QPSK FEC_3_4 0x08 0x02+X DVB-S
* QPSK FEC_4_5 0x10 0x02+X DVB-S (?)
* QPSK FEC_5_6 0x20 0x02+X DVB-S
* QPSK FEC_6_7 0x40 0x02+X DVB-S
* QPSK FEC_7_8 0x80 0x02+X DVB-S
* QPSK FEC_8_9 0x01 0x02+X DVB-S (?) (NOT SUPPORTED?)
* QPSK AUTO 0xff 0x02+X DVB-S
*
* For DVB-S high byte probably represents FEC
* and low byte selects the modulator. The high
* byte is search range mask. Bit 5 may turn
* on DVB-S and remaining bits represent some
* kind of calibration (how/what i do not know).
*
* Eg.(2/3) szap "Zone Horror"
*
* mask/val = 0x04, 0x20
* status 1f | signal c3c0 | snr a333 | ber 00000098 | unc 00000000 | FE_HAS_LOCK
*
* mask/val = 0x04, 0x30
* status 1f | signal c3c0 | snr a333 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
*
* After tuning FECSTATUS contains actual FEC
* in use numbered 1 through to 8 for 1/2 .. 2/3 etc
*
* NBC=NOT/NON BACKWARD COMPATIBLE WITH DVB-S (DVB-S2 only)
*
* NBC-QPSK FEC_1_2 0x00, 0x04 DVB-S2
* NBC-QPSK FEC_3_5 0x00, 0x05 DVB-S2
* NBC-QPSK FEC_2_3 0x00, 0x06 DVB-S2
* NBC-QPSK FEC_3_4 0x00, 0x07 DVB-S2
* NBC-QPSK FEC_4_5 0x00, 0x08 DVB-S2
* NBC-QPSK FEC_5_6 0x00, 0x09 DVB-S2
* NBC-QPSK FEC_8_9 0x00, 0x0a DVB-S2
* NBC-QPSK FEC_9_10 0x00, 0x0b DVB-S2
*
* NBC-8PSK FEC_3_5 0x00, 0x0c DVB-S2
* NBC-8PSK FEC_2_3 0x00, 0x0d DVB-S2
* NBC-8PSK FEC_3_4 0x00, 0x0e DVB-S2
* NBC-8PSK FEC_5_6 0x00, 0x0f DVB-S2
* NBC-8PSK FEC_8_9 0x00, 0x10 DVB-S2
* NBC-8PSK FEC_9_10 0x00, 0x11 DVB-S2
*
* For DVB-S2 low bytes selects both modulator
* and FEC. High byte is meaningless here. To
* set pilot, bit 6 (0x40) is set. When inspecting
* FECSTATUS bit 7 (0x80) represents the pilot
* selection whilst not tuned. When tuned, actual FEC
* in use is found in FECSTATUS as per above. Pilot
* value is reset.
*/
/* A table of modulation, fec and configuration bytes for the demod.
* Not all S2 mmodulation schemes are support and not all rates with
* a scheme are support. Especially, no auto detect when in S2 mode.
......@@ -244,15 +405,17 @@ struct cx24116_modfec {
u8 val; /* Passed to the firmware to indicate mode selection */
} CX24116_MODFEC_MODES[] = {
/* QPSK. For unknown rates we set hardware to auto detect 0xfe 0x30 */
/*mod fec mask val */
{ QPSK, FEC_NONE, 0xfe, 0x30 },
{ QPSK, FEC_1_2, 0x02, 0x2e },
{ QPSK, FEC_2_3, 0x04, 0x2f },
{ QPSK, FEC_3_4, 0x08, 0x30 },
{ QPSK, FEC_4_5, 0xfe, 0x30 },
{ QPSK, FEC_5_6, 0x20, 0x31 },
{ QPSK, FEC_6_7, 0xfe, 0x30 },
{ QPSK, FEC_7_8, 0x80, 0x32 },
{ QPSK, FEC_8_9, 0xfe, 0x30 },
{ QPSK, FEC_1_2, 0x02, 0x2e }, /* 00000010 00101110 */
{ QPSK, FEC_2_3, 0x04, 0x2f }, /* 00000100 00101111 */
{ QPSK, FEC_3_4, 0x08, 0x30 }, /* 00001000 00110000 */
{ QPSK, FEC_4_5, 0xfe, 0x30 }, /* 000?0000 ? */
{ QPSK, FEC_5_6, 0x20, 0x31 }, /* 00100000 00110001 */
{ QPSK, FEC_6_7, 0xfe, 0x30 }, /* 0?000000 ? */
{ QPSK, FEC_7_8, 0x80, 0x32 }, /* 10000000 00110010 */
{ QPSK, FEC_8_9, 0xfe, 0x30 }, /* 0000000? ? */
{ QPSK, FEC_AUTO, 0xfe, 0x30 },
/* NBC-QPSK */
{ NBC_QPSK, FEC_1_2, 0x00, 0x04 },
......@@ -268,7 +431,12 @@ struct cx24116_modfec {
{ _8PSK, FEC_2_3, 0x00, 0x0d },
{ _8PSK, FEC_3_4, 0x00, 0x0e },
{ _8PSK, FEC_5_6, 0x00, 0x0f },
{ _8PSK, FEC_8_9, 0x00, 0x10 },
{ _8PSK, FEC_9_10, 0x00, 0x11 },
/*
* `val' can be found in the FECSTATUS register when tuning.
* FECSTATUS will give the actual FEC in use if tuning was successful.
*/
};
static int cx24116_lookup_fecmod(struct cx24116_state* state,
......@@ -276,6 +444,8 @@ static int cx24116_lookup_fecmod(struct cx24116_state* state,
{
int i, ret = -EOPNOTSUPP;
dprintk("%s(0x%02x,0x%02x)\n", __func__, m, f);
for(i=0 ; i < sizeof(CX24116_MODFEC_MODES) / sizeof(struct cx24116_modfec) ; i++)
{
if( (m == CX24116_MODFEC_MODES[i].modulation) &&
......@@ -292,37 +462,38 @@ static int cx24116_lookup_fecmod(struct cx24116_state* state,
static int cx24116_set_fec(struct cx24116_state* state, fe_modulation_t mod, fe_code_rate_t fec)
{
int ret = 0;
dprintk("%s()\n", __func__);
dprintk("%s(0x%02x,0x%02x)\n", __func__, mod, fec);
ret = cx24116_lookup_fecmod(state, mod, fec);
if(ret < 0)
return ret;
state->dnxt.fec = fec;
state->dnxt.fec_val = CX24116_MODFEC_MODES[ret].val;
state->dnxt.fec_mask = CX24116_MODFEC_MODES[ret].mask;
dprintk("%s() fec_val/mask = 0x%02x/0x%02x\n", __func__,
state->dnxt.fec_val, state->dnxt.fec_mask);
dprintk("%s() mask/val = 0x%02x/0x%02x\n", __func__,
state->dnxt.fec_mask, state->dnxt.fec_val);
return 0;
}
static int cx24116_set_symbolrate(struct cx24116_state* state, u32 rate)
{
int ret = 0;
dprintk("%s(%d)\n", __func__, rate);
dprintk("%s()\n", __func__);
/* check if symbol rate is within limits */
if ((rate > state->frontend.ops.info.symbol_rate_max) ||
(rate < state->frontend.ops.info.symbol_rate_min)) {
dprintk("%s() unsupported symbol_rate = %d\n", __func__, rate);
return -EOPNOTSUPP;
}
state->dnxt.symbol_rate = rate;
dprintk("%s() symbol_rate = %d\n", __func__, rate);
dprintk("%s() symbol_rate = %d\n", __func__, state->dnxt.symbol_rate);
/* check if symbol rate is within limits */
if ((state->dnxt.symbol_rate > state->frontend.ops.info.symbol_rate_max) ||
(state->dnxt.symbol_rate < state->frontend.ops.info.symbol_rate_min))
ret = -EOPNOTSUPP;
return ret;
return 0;
}
static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware *fw);
......@@ -392,8 +563,8 @@ static int cx24116_cmd_execute(struct dvb_frontend* fe, struct cx24116_cmd *cmd)
}
/* Start execution and wait for cmd to terminate */
cx24116_writereg(state, 0x1f, 0x01);
while( cx24116_readreg(state, 0x1f) )
cx24116_writereg(state, CX24116_REG_EXECUTE, 0x01);
while( cx24116_readreg(state, CX24116_REG_EXECUTE) )
{
msleep(10);
if(i++ > 64)
......@@ -410,7 +581,8 @@ static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware
{
struct cx24116_state* state = fe->demodulator_priv;
struct cx24116_cmd cmd;
int ret;
int i, ret;
unsigned char vers[4];
dprintk("%s\n", __func__);
dprintk("Firmware is %zu bytes (%02x %02x .. %02x %02x)\n"
......@@ -427,11 +599,21 @@ static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware
/* Begin the firmware load process */
/* Prepare the demod, load the firmware, cleanup after load */
/* Init PLL */
cx24116_writereg(state, 0xE5, 0x00);
cx24116_writereg(state, 0xF1, 0x08);
cx24116_writereg(state, 0xF2, cx24116_readreg(state, 0xF2) | 0x03);
cx24116_writereg(state, 0xF3, 0x46);
cx24116_writereg(state, 0xF9, 0x00);
cx24116_writereg(state, 0xF2, 0x13);
/* Start PLL */
cx24116_writereg(state, 0xe0, 0x03);
cx24116_writereg(state, 0xe0, 0x00);
/* Unknown */
cx24116_writereg(state, CX24116_REG_CLKDIV, 0x46);
cx24116_writereg(state, CX24116_REG_RATEDIV, 0x00);
/* Unknown */
cx24116_writereg(state, 0xF0, 0x03);
cx24116_writereg(state, 0xF4, 0x81);
cx24116_writereg(state, 0xF5, 0x00);
......@@ -444,8 +626,8 @@ static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware
cx24116_writereg(state, 0xF0, 0x00);
cx24116_writereg(state, 0xF8, 0x06);
/* Firmware CMD 10: Chip config? */
cmd.args[0x00] = CMD_INIT_CMD10;
/* Firmware CMD 10: VCO config */
cmd.args[0x00] = CMD_SET_VCO;
cmd.args[0x01] = 0x05;
cmd.args[0x02] = 0xdc;
cmd.args[0x03] = 0xda;
......@@ -460,10 +642,10 @@ static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware
if (ret != 0)
return ret;
cx24116_writereg(state, 0x9d, 0x00);
cx24116_writereg(state, CX24116_REG_SSTATUS, 0x00);
/* Firmware CMD 14: Unknown */
cmd.args[0x00] = CMD_INIT_CMD14;
/* Firmware CMD 14: Tuner config */
cmd.args[0x00] = CMD_TUNERINIT;
cmd.args[0x01] = 0x00;
cmd.args[0x02] = 0x00;
cmd.len= 0x03;
......@@ -473,8 +655,8 @@ static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware
cx24116_writereg(state, 0xe5, 0x00);
/* Firmware CMD 13: Unknown - Firmware config? */
cmd.args[0x00] = CMD_INIT_CMD13;
/* Firmware CMD 13: MPEG config */
cmd.args[0x00] = CMD_MPEGCONFIG;
cmd.args[0x01] = 0x01;
cmd.args[0x02] = 0x75;
cmd.args[0x03] = 0x00;
......@@ -488,6 +670,19 @@ static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware
if (ret != 0)
return ret;
/* Firmware CMD 35: Get firmware version */
cmd.args[0x00] = CMD_UPDFWVERS;
cmd.len= 0x02;
for(i=0; i<4; i++) {
cmd.args[0x01] = i;
ret = cx24116_cmd_execute(fe, &cmd);
if (ret != 0)
return ret;
vers[i]= cx24116_readreg(state, CX24116_REG_MAILBOX);
}
printk("%s: FW version %i.%i.%i.%i\n", __func__,
vers[0], vers[1], vers[2], vers[3]);
return 0;
}
......@@ -503,75 +698,98 @@ static int cx24116_read_status(struct dvb_frontend* fe, fe_status_t* status)
{
struct cx24116_state *state = fe->demodulator_priv;
int lock = cx24116_readreg(state, 0x9d);
int lock = cx24116_readreg(state, CX24116_REG_SSTATUS);
dprintk("%s: status = 0x%02x\n", __func__, lock);
*status = 0;
if (lock & 0x01)
if (lock & CX24116_HAS_SIGNAL)
*status |= FE_HAS_SIGNAL;
if (lock & 0x02)
if (lock & CX24116_HAS_CARRIER)
*status |= FE_HAS_CARRIER;
if (lock & 0x04)
if (lock & CX24116_HAS_VITERBI)
*status |= FE_HAS_VITERBI;
if (lock & 0x08)
if (lock & CX24116_HAS_SYNCLOCK)
*status |= FE_HAS_SYNC | FE_HAS_LOCK;
return 0;
}
/* TODO: Not clear how we do this */
static int cx24116_read_ber(struct dvb_frontend* fe, u32* ber)
{
//struct cx24116_state *state = fe->demodulator_priv;
struct cx24116_state *state = fe->demodulator_priv;
dprintk("%s()\n", __func__);
*ber = 0;
*ber = ( cx24116_readreg(state, CX24116_REG_BER24) << 24 ) |
( cx24116_readreg(state, CX24116_REG_BER16) << 16 ) |
( cx24116_readreg(state, CX24116_REG_BER8 ) << 8 ) |
cx24116_readreg(state, CX24116_REG_BER0 );
return 0;
}
/* Signal strength (0..100)% = (sig & 0xf0) * 10 + (sig & 0x0f) * 10 / 16 */
/* TODO Determine function and scale appropriately */
static int cx24116_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
{
struct cx24116_state *state = fe->demodulator_priv;
u8 strength_reg;
static const u32 strength_tab[] = { /* 10 x Table (rounded up) */
0x00000,0x0199A,0x03333,0x04ccD,0x06667,0x08000,0x0999A,0x0b333,0x0cccD,0x0e667,
0x10000,0x1199A,0x13333,0x14ccD,0x16667,0x18000 };
struct cx24116_cmd cmd;
int ret;
u16 sig_reading;
dprintk("%s()\n", __func__);
strength_reg = cx24116_readreg(state, CX24116_REG_SIGNAL);
/* Firmware CMD 19: Get AGC */
cmd.args[0x00] = CMD_GETAGC;
cmd.len= 0x01;
ret = cx24116_cmd_execute(fe, &cmd);
if (ret != 0)
return ret;
if(strength_reg < 0xa0)
*signal_strength = strength_tab [ ( strength_reg & 0xf0 ) >> 4 ] +
( strength_tab [ ( strength_reg & 0x0f ) ] >> 4 );
else
*signal_strength = 0xffff;
sig_reading = ( cx24116_readreg(state, CX24116_REG_SSTATUS) & CX24116_SIGNAL_MASK ) |
( cx24116_readreg(state, CX24116_REG_SIGNAL) << 6 );
*signal_strength= 0 - sig_reading;
dprintk("%s: Signal strength (raw / cooked) = (0x%02x / 0x%04x)\n",
__func__,strength_reg,*signal_strength);
dprintk("%s: raw / cooked = 0x%04x / 0x%04x\n", __func__, sig_reading, *signal_strength);
return 0;
}
/* TODO: Not clear how we do this */
/* SNR (0..100)% = (sig & 0xf0) * 10 + (sig & 0x0f) * 10 / 16 */
static int cx24116_read_snr(struct dvb_frontend* fe, u16* snr)
{
//struct cx24116_state *state = fe->demodulator_priv;
struct cx24116_state *state = fe->demodulator_priv;
u8 snr_reading;
static const u32 snr_tab[] = { /* 10 x Table (rounded up) */
0x00000,0x0199A,0x03333,0x04ccD,0x06667,
0x08000,0x0999A,0x0b333,0x0cccD,0x0e667,
0x10000,0x1199A,0x13333,0x14ccD,0x16667,0x18000 };
dprintk("%s()\n", __func__);
*snr = 0;
snr_reading = cx24116_readreg(state, CX24116_REG_QUALITY);
if(snr_reading >= 0xa0 /* 100% */)
*snr = 0xffff;
else
*snr = snr_tab [ ( snr_reading & 0xf0 ) >> 4 ] +
( snr_tab [ ( snr_reading & 0x0f ) ] >> 4 );
dprintk("%s: raw / cooked = 0x%02x / 0x%04x\n", __func__,
snr_reading, *snr);
return 0;
}
/* TODO: Not clear how we do this */
static int cx24116_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
{
//struct cx24116_state *state = fe->demodulator_priv;
struct cx24116_state *state = fe->demodulator_priv;
dprintk("%s()\n", __func__);
*ucblocks = 0;
*ucblocks = ( cx24116_readreg(state, CX24116_REG_UCB8) << 8 ) |
cx24116_readreg(state, CX24116_REG_UCB0);
return 0;
}
......@@ -583,6 +801,27 @@ static void cx24116_clone_params(struct dvb_frontend* fe)
memcpy(&state->dcur, &state->dnxt, sizeof(state->dcur));
}
/* Wait for LNB */
static int cx24116_wait_for_lnb(struct dvb_frontend* fe)
{
struct cx24116_state *state = fe->demodulator_priv;
int i;
dprintk("%s() qstatus = 0x%02x\n", __func__,
cx24116_readreg(state, CX24116_REG_QSTATUS));
/* Wait for up to 300 ms */
for(i = 0; i < 30 ; i++) {
if (cx24116_readreg(state, CX24116_REG_QSTATUS) & 0x20)
return 0;
msleep(10);
}
dprintk("%s(): LNB not ready\n", __func__);
return -ETIMEDOUT; /* -EBUSY ? */
}
static int cx24116_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
{
struct cx24116_cmd cmd;
......@@ -594,6 +833,14 @@ static int cx24116_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
return -EINVAL;
}
/* Wait for LNB ready */
ret = cx24116_wait_for_lnb(fe);
if(ret != 0)
return ret;
/* Min delay time after DiSEqC send */
msleep(15); /* XXX determine is FW does this, see send_diseqc/burst */
/* This is always done before the tone is set */
cmd.args[0x00] = CMD_SET_TONEPRE;
cmd.args[0x01] = 0x00;
......@@ -619,6 +866,9 @@ static int cx24116_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
}
cmd.len= 0x04;
/* Min delay time before DiSEqC send */
msleep(15); /* XXX determine is FW does this, see send_diseqc/burst */
return cx24116_cmd_execute(fe, &cmd);
}
......@@ -626,9 +876,39 @@ static int cx24116_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
static int cx24116_diseqc_init(struct dvb_frontend* fe)
{
struct cx24116_state *state = fe->demodulator_priv;
struct cx24116_cmd cmd;
int ret;
/* Firmware CMD 20: LNB/DiSEqC config */
cmd.args[0x00] = CMD_LNBCONFIG;
cmd.args[0x01] = 0x00;
cmd.args[0x02] = 0x10;
cmd.args[0x03] = 0x00;
cmd.args[0x04] = 0x8f;
cmd.args[0x05] = 0x28;
cmd.args[0x06] = (toneburst == CX24116_DISEQC_TONEOFF) ? 0x00 : 0x01;
cmd.args[0x07] = 0x01;
cmd.len= 0x08;
ret = cx24116_cmd_execute(fe, &cmd);
if (ret != 0)
return ret;
/* Prepare a DiSEqC command */
state->dsec_cmd.args[0x00] = CMD_LNBSEND;
/* DiSEqC burst */
state->dsec_cmd.args[CX24116_DISEQC_BURST] = CX24116_DISEQC_MINI_A;
/* Unknown */
state->dsec_cmd.args[CX24116_DISEQC_ARG2_2] = 0x02;
state->dsec_cmd.args[CX24116_DISEQC_ARG3_0] = 0x00;
state->dsec_cmd.args[CX24116_DISEQC_ARG4_0] = 0x00; /* Continuation flag? */
/* Default DiSEqC burst state */
state->burst = CX24116_DISEQC_MINI_A;
/* DiSEqC message length */
state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] = 0x00;
/* Command length */
state->dsec_cmd.len= CX24116_DISEQC_MSGOFS;
return 0;
}
......@@ -637,7 +917,6 @@ static int cx24116_diseqc_init(struct dvb_frontend* fe)
static int cx24116_send_diseqc_msg(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd *d)
{
struct cx24116_state *state = fe->demodulator_priv;
struct cx24116_cmd cmd;
int i, ret;
/* Dump DiSEqC message */
......@@ -647,82 +926,134 @@ static int cx24116_send_diseqc_msg(struct dvb_frontend* fe, struct dvb_diseqc_ma
printk("0x%02x", d->msg[i]);
if(++i < d->msg_len)
printk(", ");
}
printk(")\n");
}
printk(") toneburst=%d\n", toneburst);
}
/* Validate length */
if(d->msg_len > (CX24116_ARGLEN - CX24116_DISEQC_MSGOFS))
return -EINVAL;
cmd.args[0x00] = CMD_SEND_DISEQC;
cmd.args[CX24116_DISEQC_ARG2_2] = 0x02;
cmd.args[CX24116_DISEQC_ARG3_0] = 0x00;
cmd.args[CX24116_DISEQC_ARG4_0] = 0x00;
/* DiSEqC message */
for (i = 0; i < d->msg_len; i++)
cmd.args[CX24116_DISEQC_MSGOFS + i] = d->msg[i];
state->dsec_cmd.args[CX24116_DISEQC_MSGOFS + i] = d->msg[i];
/* DiSEqC message length */
state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] = d->msg_len;
/* Command length */
state->dsec_cmd.len= CX24116_DISEQC_MSGOFS + state->dsec_cmd.args[CX24116_DISEQC_MSGLEN];
/* DiSEqC toneburst */
if(toneburst == CX24116_DISEQC_MESGCACHE)
/* Message is cached */
return 0;
else if(toneburst == CX24116_DISEQC_TONEOFF)
/* Message is sent without burst */
state->dsec_cmd.args[CX24116_DISEQC_BURST] = 0;
else if(toneburst == CX24116_DISEQC_TONECACHE) {
/*
* Message is sent with derived else cached burst
*
* WRITE PORT GROUP COMMAND 38
*
* 0/A/A: E0 10 38 F0..F3
* 1/B/B: E0 10 38 F4..F7
* 2/C/A: E0 10 38 F8..FB
* 3/D/B: E0 10 38 FC..FF
*
* datebyte[3]= 8421:8421
* ABCD:WXYZ
* CLR :SET
*
* WX= PORT SELECT 0..3 (X=TONEBURST)
* Y = VOLTAGE (0=13V, 1=18V)
* Z = BAND (0=LOW, 1=HIGH(22K))
*/
if(d->msg_len >= 4 && d->msg[2] == 0x38)
state->dsec_cmd.args[CX24116_DISEQC_BURST] = ((d->msg[3] & 4) >> 2);
if(debug)
dprintk("%s burst=%d\n", __func__, state->dsec_cmd.args[CX24116_DISEQC_BURST]);
}
/* Hack: Derive burst from command else use previous burst */
if(d->msg_len >= 4 && d->msg[2] == 0x38)
cmd.args[CX24116_DISEQC_BURST] = (d->msg[3] >> 2) & 1;
else
cmd.args[CX24116_DISEQC_BURST] = state->burst;
/* Wait for LNB ready */
ret = cx24116_wait_for_lnb(fe);
if(ret != 0)
return ret;
cmd.args[CX24116_DISEQC_MSGLEN] = d->msg_len;
cmd.len = CX24116_DISEQC_MSGOFS + d->msg_len;
/* Wait for voltage/min repeat delay */
msleep(100);
ret = cx24116_cmd_execute(fe, &cmd);
/* Firmware command duration is unknown, so guess...
/* Command */
ret = cx24116_cmd_execute(fe, &state->dsec_cmd);
if(ret != 0)
return ret;
/*
* Wait for send
*
* Eutelsat spec:
* >15ms delay +
* 13.5ms per byte +
* >15ms delay +
* 12.5ms burst +
* >15ms delay
* >15ms delay + (XXX determine if FW does this, see set_tone)
* 13.5ms per byte +
* >15ms delay +
* 12.5ms burst +
* >15ms delay (XXX determine if FW does this, see set_tone)
*/
if(ret == 0)
msleep( (cmd.args[CX24116_DISEQC_MSGLEN] << 4) + 60 );
msleep( (state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] << 4) + ((toneburst == CX24116_DISEQC_TONEOFF) ? 30 : 60) );
return ret;
return 0;
}
/* Send DiSEqC burst */
static int cx24116_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t burst)
{
struct cx24116_state *state = fe->demodulator_priv;
struct cx24116_cmd cmd;
int ret;
dprintk("%s(%d)\n",__func__,(int)burst);
cmd.args[0x00] = CMD_SEND_DISEQC;
cmd.args[CX24116_DISEQC_ARG2_2] = 0x02;
cmd.args[CX24116_DISEQC_ARG3_0] = 0x00;
cmd.args[CX24116_DISEQC_ARG4_0] = 0x00;
dprintk("%s(%d) toneburst=%d\n",__func__, burst, toneburst);
/* DiSEqC burst */
if (burst == SEC_MINI_A)
cmd.args[CX24116_DISEQC_BURST] = CX24116_DISEQC_MINI_A;
state->dsec_cmd.args[CX24116_DISEQC_BURST] = CX24116_DISEQC_MINI_A;
else if(burst == SEC_MINI_B)
cmd.args[CX24116_DISEQC_BURST] = CX24116_DISEQC_MINI_B;
state->dsec_cmd.args[CX24116_DISEQC_BURST] = CX24116_DISEQC_MINI_B;
else
return -EINVAL;
/* Cache as previous burst state */
state->burst= cmd.args[CX24116_DISEQC_BURST];
/* DiSEqC toneburst */
if(toneburst != CX24116_DISEQC_MESGCACHE)
/* Burst is cached */
return 0;
cmd.args[CX24116_DISEQC_MSGLEN] = 0x00;
cmd.len= CX24116_DISEQC_MSGOFS;
/* Burst is to be sent with cached message */
ret= cx24116_cmd_execute(fe, &cmd);
/* Wait for LNB ready */
ret = cx24116_wait_for_lnb(fe);
if(ret != 0)
return ret;
/* Firmware command duration is unknown, so guess... */
if(ret == 0)
msleep(60);
/* Wait for voltage/min repeat delay */
msleep(100);
return ret;
/* Command */
ret = cx24116_cmd_execute(fe, &state->dsec_cmd);
if(ret != 0)
return ret;
/*
* Wait for send
*
* Eutelsat spec:
* >15ms delay + (XXX determine if FW does this, see set_tone)
* 13.5ms per byte +
* >15ms delay +
* 12.5ms burst +
* >15ms delay (XXX determine if FW does this, see set_tone)
*/
msleep( (state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] << 4) + 60 );
return 0;
}
static void cx24116_release(struct dvb_frontend* fe)
......@@ -730,6 +1061,7 @@ static void cx24116_release(struct dvb_frontend* fe)
struct cx24116_state* state = fe->demodulator_priv;
dprintk("%s\n",__func__);
kfree(state);
unregister_sysctl_table(kernel_table_header);
}
static struct dvb_frontend_ops cx24116_ops;
......@@ -742,11 +1074,15 @@ struct dvb_frontend* cx24116_attach(const struct cx24116_config* config,
dprintk("%s\n",__func__);
kernel_table_header = register_sysctl_table(kernel_table);
if(!kernel_table_header)
goto error1;
/* allocate memory for the internal state */
state = kmalloc(sizeof(struct cx24116_state), GFP_KERNEL);
if (state == NULL) {
printk("Unable to kmalloc\n");
goto error;
goto error2;
}
/* setup the state */
......@@ -759,7 +1095,7 @@ struct dvb_frontend* cx24116_attach(const struct cx24116_config* config,
ret = (cx24116_readreg(state, 0xFF) << 8) | cx24116_readreg(state, 0xFE);
if (ret != 0x0501) {
printk("Invalid probe, probably not a CX24116 device\n");
goto error;
goto error3;
}
/* create dvb_frontend */
......@@ -767,33 +1103,64 @@ struct dvb_frontend* cx24116_attach(const struct cx24116_config* config,
state->frontend.demodulator_priv = state;
return &state->frontend;
error:
kfree(state);
return NULL;
error3: kfree(state);
error2: unregister_sysctl_table(kernel_table_header);
error1: return NULL;
}
static int cx24116_get_params(struct dvb_frontend* fe)
/*
* Initialise or wake up device
*
* Power config will reset and load initial firmware if required
*/
static int cx24116_initfe(struct dvb_frontend* fe)
{
struct cx24116_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *cache = &fe->dtv_property_cache;
struct cx24116_state* state = fe->demodulator_priv;
struct cx24116_cmd cmd;
int ret;
dprintk("%s()\n",__func__);
cache->frequency = state->dcur.frequency;
cache->inversion = state->dcur.inversion;
cache->modulation = state->dcur.modulation;
cache->fec_inner = state->dcur.fec;
cache->symbol_rate = state->dcur.symbol_rate;
/* Power on */
cx24116_writereg(state, 0xe0, 0);
cx24116_writereg(state, 0xe1, 0);
cx24116_writereg(state, 0xea, 0);
return 0;
/* Firmware CMD 36: Power config */
cmd.args[0x00] = CMD_TUNERSLEEP;
cmd.args[0x01] = 0;
cmd.len= 0x02;
ret = cx24116_cmd_execute(fe, &cmd);
if(ret != 0)
return ret;
return cx24116_diseqc_init(fe);
}
static int cx24116_initfe(struct dvb_frontend* fe)
/*
* Put device to sleep
*/
static int cx24116_sleep(struct dvb_frontend* fe)
{
struct cx24116_state* state = fe->demodulator_priv;
struct cx24116_cmd cmd;
int ret;
dprintk("%s()\n",__func__);
return cx24116_diseqc_init(fe);
/* Firmware CMD 36: Power config */
cmd.args[0x00] = CMD_TUNERSLEEP;
cmd.args[0x01] = 1;
cmd.len= 0x02;
ret = cx24116_cmd_execute(fe, &cmd);
if(ret != 0)
return ret;
/* Power off (Shutdown clocks) */
cx24116_writereg(state, 0xea, 0xff);
cx24116_writereg(state, 0xe1, 1);
cx24116_writereg(state, 0xe0, 1);
return 0;
}
static int cx24116_set_property(struct dvb_frontend *fe, struct dtv_property* tvp)
......@@ -817,14 +1184,45 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct cx24116_cmd cmd;
fe_status_t tunerstat;
int ret, above30msps;
u8 retune=4;
int i, status, ret, retune = 1;
dprintk("%s()\n",__func__);
state->dnxt.modulation = c->modulation;
state->dnxt.frequency = c->frequency;
switch(c->delivery_system) {
case SYS_DVBS:
dprintk("%s: DVB-S delivery system selected\n",__func__);
state->dnxt.pilot = PILOT_OFF;
state->dnxt.rolloff = CX24116_ROLLOFF_035;
break;
case SYS_DVBS2:
dprintk("%s: DVB-S2 delivery system selected\n",__func__);
if(c->pilot == PILOT_AUTO)
retune++;
state->dnxt.pilot = c->pilot;
switch(c->rolloff) {
case ROLLOFF_20:
state->dnxt.rolloff_val= CX24116_ROLLOFF_020;
break;
case ROLLOFF_25:
state->dnxt.rolloff_val= CX24116_ROLLOFF_025;
break;
case ROLLOFF_35:
state->dnxt.rolloff_val= CX24116_ROLLOFF_035;
break;
case ROLLOFF_AUTO:
return -EOPNOTSUPP;
}
state->dnxt.rolloff = c->rolloff;
break;
default:
dprintk("%s: unsupported delivery system selected (%d)\n",
__func__, c->delivery_system);
return -EOPNOTSUPP;
}
if ((ret = cx24116_set_inversion(state, c->inversion)) != 0)
return ret;
......@@ -837,6 +1235,9 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
/* discard the 'current' tuning parameters and prepare to tune */
cx24116_clone_params(fe);
dprintk("%s: retune = %d\n", __func__, retune);
dprintk("%s: rolloff = %d\n", __func__, state->dcur.rolloff);
dprintk("%s: pilot = %d\n", __func__, state->dcur.pilot);
dprintk("%s: frequency = %d\n", __func__, state->dcur.frequency);
dprintk("%s: symbol_rate = %d\n", __func__, state->dcur.symbol_rate);
dprintk("%s: FEC = %d (mask/val = 0x%02x/0x%02x)\n", __func__,
......@@ -844,18 +1245,17 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
dprintk("%s: Inversion = %d (val = 0x%02x)\n", __func__,
state->dcur.inversion, state->dcur.inversion_val);
/* This is also done in advise/acquire on HVR4000 but not on LITE */
if (state->config->set_ts_params)
state->config->set_ts_params(fe, 0);
above30msps = (state->dcur.symbol_rate > 30000000);
if (above30msps){
cx24116_writereg(state, 0xF9, 0x01);
cx24116_writereg(state, 0xF3, 0x44);
} else {
cx24116_writereg(state, 0xF9, 0x00);
cx24116_writereg(state, 0xF3, 0x46);
}
/* Set/Reset B/W */
cmd.args[0x00] = CMD_BANDWIDTH;
cmd.args[0x01] = 0x01;
cmd.len= 0x02;
ret = cx24116_cmd_execute(fe, &cmd);
if (ret != 0)
return ret;
/* Prepare a tune request */
cmd.args[0x00] = CMD_TUNEREQUEST;
......@@ -875,28 +1275,32 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
/* Modulation / FEC & Pilot Off */
cmd.args[0x07] = state->dcur.fec_val;
if (c->pilot == PILOT_ON)
cmd.args[0x07] |= 0x40;
if (state->dcur.pilot == PILOT_ON)
cmd.args[0x07] |= CX24116_PILOT;
cmd.args[0x08] = CX24116_SEARCH_RANGE_KHZ >> 8;
cmd.args[0x09] = CX24116_SEARCH_RANGE_KHZ & 0xff;
cmd.args[0x0a] = 0x00;
cmd.args[0x0b] = 0x00;
cmd.args[0x0c] = 0x02;
cmd.args[0x0c] = state->dcur.rolloff_val;
cmd.args[0x0d] = state->dcur.fec_mask;
if (above30msps){
if (state->dcur.symbol_rate > 30000000) {
cmd.args[0x0e] = 0x04;
cmd.args[0x0f] = 0x00;
cmd.args[0x10] = 0x01;
cmd.args[0x11] = 0x77;
cmd.args[0x12] = 0x36;
cx24116_writereg(state, CX24116_REG_CLKDIV, 0x44);
cx24116_writereg(state, CX24116_REG_RATEDIV, 0x01);
} else {
cmd.args[0x0e] = 0x06;
cmd.args[0x0f] = 0x00;
cmd.args[0x10] = 0x00;
cmd.args[0x11] = 0xFA;
cmd.args[0x12] = 0x24;
cx24116_writereg(state, CX24116_REG_CLKDIV, 0x46);
cx24116_writereg(state, CX24116_REG_RATEDIV, 0x00);
}
cmd.len= 0x13;
......@@ -906,29 +1310,47 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
* the demod does not support autodetect.
*/
do {
/* Reset status register? */
cx24116_writereg(state, 0x9d, 0xc1);
/* Reset status register */
status = cx24116_readreg(state, CX24116_REG_SSTATUS) & CX24116_SIGNAL_MASK;
cx24116_writereg(state, CX24116_REG_SSTATUS, status);
/* Tune */
ret = cx24116_cmd_execute(fe, &cmd);
if( ret != 0 )
break;
/* The hardware can take time to lock, wait a while */
msleep(500);
cx24116_read_status(fe, &tunerstat);
if(tunerstat & FE_HAS_SIGNAL) {
if(tunerstat & FE_HAS_SYNC)
/* Tuned */
break;
else if(c->pilot == PILOT_AUTO)
/* Toggle pilot bit */
cmd.args[0x07] ^= 0x40;
/*
* Wait for up to 500 ms before retrying
*
* If we are able to tune then generally it occurs within 100ms.
* If it takes longer, try a different toneburst setting.
*/
for(i = 0; i < 50 ; i++) {
cx24116_read_status(fe, &tunerstat);
status = tunerstat & (FE_HAS_SIGNAL | FE_HAS_SYNC);
if(status == (FE_HAS_SIGNAL | FE_HAS_SYNC)) {
dprintk("%s: Tuned\n",__func__);
goto tuned;
}
msleep(10);
}
dprintk("%s: Not tuned\n",__func__);
/* Toggle pilot bit when in auto-pilot */
if(state->dcur.pilot == PILOT_AUTO)
cmd.args[0x07] ^= CX24116_PILOT;
}
while(--retune);
tuned: /* Set/Reset B/W */
cmd.args[0x00] = CMD_BANDWIDTH;
cmd.args[0x01] = 0x00;
cmd.len= 0x02;
ret = cx24116_cmd_execute(fe, &cmd);
if (ret != 0)
return ret;
return ret;
}
......@@ -953,6 +1375,7 @@ static struct dvb_frontend_ops cx24116_ops = {
.release = cx24116_release,
.init = cx24116_initfe,
.sleep = cx24116_sleep,
.read_status = cx24116_read_status,
.read_ber = cx24116_read_ber,
.read_signal_strength = cx24116_read_signal_strength,
......@@ -971,6 +1394,9 @@ static struct dvb_frontend_ops cx24116_ops = {
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)");
module_param(toneburst, int, 0644);
MODULE_PARM_DESC(toneburst, "DiSEqC toneburst 0=OFF, 1=TONE CACHE, 2=MESSAGE CACHE (default:1)");
MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24116/cx24118 hardware");
MODULE_AUTHOR("Steven Toth");
MODULE_LICENSE("GPL");
......
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