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linux-next/drivers/media/dvb/frontends/cx24110.c
Matthias Schwarzott 084e24acc9 V4L/DVB (12440): Use kzalloc for frontend states to have struct dvb_frontend properly
This patch changes most frontend drivers to allocate their state structure via
kzalloc and not kmalloc. This is done to properly initialize the
embedded "struct dvb_frontend frontend" field, that they all have.

The visible effect of this struct being uninitalized is, that the member "id"
that is used to set the name of kernel thread is totally random.

Some board drivers (for example cx88-dvb) set this "id" via
videobuf_dvb_alloc_frontend but most do not.

So I at least get random id values for saa7134, flexcop and ttpci based cards.
It looks like this in dmesg:
DVB: registering adapter 1 frontend -10551321 (ST STV0299 DVB-S)

The related kernel thread then also gets a strange name
like "kdvb-ad-1-fe--1".

Cc: Michael Krufky <mkrufky@linuxtv.org>
Cc: Steven Toth <stoth@linuxtv.org>
Cc: Timothy Lee <timothy.lee@siriushk.com>
Cc: Igor M. Liplianin <liplianin@me.by>
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Acked-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-08-13 20:39:14 -03:00

668 lines
20 KiB
C

/*
cx24110 - Single Chip Satellite Channel Receiver driver module
Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@htp-tel.de> based on
work
Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include "dvb_frontend.h"
#include "cx24110.h"
struct cx24110_state {
struct i2c_adapter* i2c;
const struct cx24110_config* config;
struct dvb_frontend frontend;
u32 lastber;
u32 lastbler;
u32 lastesn0;
};
static int debug;
#define dprintk(args...) \
do { \
if (debug) printk(KERN_DEBUG "cx24110: " args); \
} while (0)
static struct {u8 reg; u8 data;} cx24110_regdata[]=
/* Comments beginning with @ denote this value should
be the default */
{{0x09,0x01}, /* SoftResetAll */
{0x09,0x00}, /* release reset */
{0x01,0xe8}, /* MSB of code rate 27.5MS/s */
{0x02,0x17}, /* middle byte " */
{0x03,0x29}, /* LSB " */
{0x05,0x03}, /* @ DVB mode, standard code rate 3/4 */
{0x06,0xa5}, /* @ PLL 60MHz */
{0x07,0x01}, /* @ Fclk, i.e. sampling clock, 60MHz */
{0x0a,0x00}, /* @ partial chip disables, do not set */
{0x0b,0x01}, /* set output clock in gapped mode, start signal low
active for first byte */
{0x0c,0x11}, /* no parity bytes, large hold time, serial data out */
{0x0d,0x6f}, /* @ RS Sync/Unsync thresholds */
{0x10,0x40}, /* chip doc is misleading here: write bit 6 as 1
to avoid starting the BER counter. Reset the
CRC test bit. Finite counting selected */
{0x15,0xff}, /* @ size of the limited time window for RS BER
estimation. It is <value>*256 RS blocks, this
gives approx. 2.6 sec at 27.5MS/s, rate 3/4 */
{0x16,0x00}, /* @ enable all RS output ports */
{0x17,0x04}, /* @ time window allowed for the RS to sync */
{0x18,0xae}, /* @ allow all standard DVB code rates to be scanned
for automatically */
/* leave the current code rate and normalization
registers as they are after reset... */
{0x21,0x10}, /* @ during AutoAcq, search each viterbi setting
only once */
{0x23,0x18}, /* @ size of the limited time window for Viterbi BER
estimation. It is <value>*65536 channel bits, i.e.
approx. 38ms at 27.5MS/s, rate 3/4 */
{0x24,0x24}, /* do not trigger Viterbi CRC test. Finite count window */
/* leave front-end AGC parameters at default values */
/* leave decimation AGC parameters at default values */
{0x35,0x40}, /* disable all interrupts. They are not connected anyway */
{0x36,0xff}, /* clear all interrupt pending flags */
{0x37,0x00}, /* @ fully enable AutoAcqq state machine */
{0x38,0x07}, /* @ enable fade recovery, but not autostart AutoAcq */
/* leave the equalizer parameters on their default values */
/* leave the final AGC parameters on their default values */
{0x41,0x00}, /* @ MSB of front-end derotator frequency */
{0x42,0x00}, /* @ middle bytes " */
{0x43,0x00}, /* @ LSB " */
/* leave the carrier tracking loop parameters on default */
/* leave the bit timing loop parameters at gefault */
{0x56,0x4d}, /* set the filtune voltage to 2.7V, as recommended by */
/* the cx24108 data sheet for symbol rates above 15MS/s */
{0x57,0x00}, /* @ Filter sigma delta enabled, positive */
{0x61,0x95}, /* GPIO pins 1-4 have special function */
{0x62,0x05}, /* GPIO pin 5 has special function, pin 6 is GPIO */
{0x63,0x00}, /* All GPIO pins use CMOS output characteristics */
{0x64,0x20}, /* GPIO 6 is input, all others are outputs */
{0x6d,0x30}, /* tuner auto mode clock freq 62kHz */
{0x70,0x15}, /* use auto mode, tuner word is 21 bits long */
{0x73,0x00}, /* @ disable several demod bypasses */
{0x74,0x00}, /* @ " */
{0x75,0x00} /* @ " */
/* the remaining registers are for SEC */
};
static int cx24110_writereg (struct cx24110_state* state, int reg, int data)
{
u8 buf [] = { reg, data };
struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
int err;
if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
dprintk ("%s: writereg error (err == %i, reg == 0x%02x,"
" data == 0x%02x)\n", __func__, err, reg, data);
return -EREMOTEIO;
}
return 0;
}
static int cx24110_readreg (struct cx24110_state* state, u8 reg)
{
int ret;
u8 b0 [] = { reg };
u8 b1 [] = { 0 };
struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 },
{ .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
ret = i2c_transfer(state->i2c, msg, 2);
if (ret != 2) return ret;
return b1[0];
}
static int cx24110_set_inversion (struct cx24110_state* state, fe_spectral_inversion_t inversion)
{
/* fixme (low): error handling */
switch (inversion) {
case INVERSION_OFF:
cx24110_writereg(state,0x37,cx24110_readreg(state,0x37)|0x1);
/* AcqSpectrInvDis on. No idea why someone should want this */
cx24110_writereg(state,0x5,cx24110_readreg(state,0x5)&0xf7);
/* Initial value 0 at start of acq */
cx24110_writereg(state,0x22,cx24110_readreg(state,0x22)&0xef);
/* current value 0 */
/* The cx24110 manual tells us this reg is read-only.
But what the heck... set it ayways */
break;
case INVERSION_ON:
cx24110_writereg(state,0x37,cx24110_readreg(state,0x37)|0x1);
/* AcqSpectrInvDis on. No idea why someone should want this */
cx24110_writereg(state,0x5,cx24110_readreg(state,0x5)|0x08);
/* Initial value 1 at start of acq */
cx24110_writereg(state,0x22,cx24110_readreg(state,0x22)|0x10);
/* current value 1 */
break;
case INVERSION_AUTO:
cx24110_writereg(state,0x37,cx24110_readreg(state,0x37)&0xfe);
/* AcqSpectrInvDis off. Leave initial & current states as is */
break;
default:
return -EINVAL;
}
return 0;
}
static int cx24110_set_fec (struct cx24110_state* state, fe_code_rate_t fec)
{
/* fixme (low): error handling */
static const int rate[]={-1,1,2,3,5,7,-1};
static const int g1[]={-1,0x01,0x02,0x05,0x15,0x45,-1};
static const int g2[]={-1,0x01,0x03,0x06,0x1a,0x7a,-1};
/* Well, the AutoAcq engine of the cx24106 and 24110 automatically
searches all enabled viterbi rates, and can handle non-standard
rates as well. */
if (fec>FEC_AUTO)
fec=FEC_AUTO;
if (fec==FEC_AUTO) { /* (re-)establish AutoAcq behaviour */
cx24110_writereg(state,0x37,cx24110_readreg(state,0x37)&0xdf);
/* clear AcqVitDis bit */
cx24110_writereg(state,0x18,0xae);
/* allow all DVB standard code rates */
cx24110_writereg(state,0x05,(cx24110_readreg(state,0x05)&0xf0)|0x3);
/* set nominal Viterbi rate 3/4 */
cx24110_writereg(state,0x22,(cx24110_readreg(state,0x22)&0xf0)|0x3);
/* set current Viterbi rate 3/4 */
cx24110_writereg(state,0x1a,0x05); cx24110_writereg(state,0x1b,0x06);
/* set the puncture registers for code rate 3/4 */
return 0;
} else {
cx24110_writereg(state,0x37,cx24110_readreg(state,0x37)|0x20);
/* set AcqVitDis bit */
if(rate[fec]>0) {
cx24110_writereg(state,0x05,(cx24110_readreg(state,0x05)&0xf0)|rate[fec]);
/* set nominal Viterbi rate */
cx24110_writereg(state,0x22,(cx24110_readreg(state,0x22)&0xf0)|rate[fec]);
/* set current Viterbi rate */
cx24110_writereg(state,0x1a,g1[fec]);
cx24110_writereg(state,0x1b,g2[fec]);
/* not sure if this is the right way: I always used AutoAcq mode */
} else
return -EOPNOTSUPP;
/* fixme (low): which is the correct return code? */
};
return 0;
}
static fe_code_rate_t cx24110_get_fec (struct cx24110_state* state)
{
int i;
i=cx24110_readreg(state,0x22)&0x0f;
if(!(i&0x08)) {
return FEC_1_2 + i - 1;
} else {
/* fixme (low): a special code rate has been selected. In theory, we need to
return a denominator value, a numerator value, and a pair of puncture
maps to correctly describe this mode. But this should never happen in
practice, because it cannot be set by cx24110_get_fec. */
return FEC_NONE;
}
}
static int cx24110_set_symbolrate (struct cx24110_state* state, u32 srate)
{
/* fixme (low): add error handling */
u32 ratio;
u32 tmp, fclk, BDRI;
static const u32 bands[]={5000000UL,15000000UL,90999000UL/2};
int i;
dprintk("cx24110 debug: entering %s(%d)\n",__func__,srate);
if (srate>90999000UL/2)
srate=90999000UL/2;
if (srate<500000)
srate=500000;
for(i = 0; (i < ARRAY_SIZE(bands)) && (srate>bands[i]); i++)
;
/* first, check which sample rate is appropriate: 45, 60 80 or 90 MHz,
and set the PLL accordingly (R07[1:0] Fclk, R06[7:4] PLLmult,
R06[3:0] PLLphaseDetGain */
tmp=cx24110_readreg(state,0x07)&0xfc;
if(srate<90999000UL/4) { /* sample rate 45MHz*/
cx24110_writereg(state,0x07,tmp);
cx24110_writereg(state,0x06,0x78);
fclk=90999000UL/2;
} else if(srate<60666000UL/2) { /* sample rate 60MHz */
cx24110_writereg(state,0x07,tmp|0x1);
cx24110_writereg(state,0x06,0xa5);
fclk=60666000UL;
} else if(srate<80888000UL/2) { /* sample rate 80MHz */
cx24110_writereg(state,0x07,tmp|0x2);
cx24110_writereg(state,0x06,0x87);
fclk=80888000UL;
} else { /* sample rate 90MHz */
cx24110_writereg(state,0x07,tmp|0x3);
cx24110_writereg(state,0x06,0x78);
fclk=90999000UL;
};
dprintk("cx24110 debug: fclk %d Hz\n",fclk);
/* we need to divide two integers with approx. 27 bits in 32 bit
arithmetic giving a 25 bit result */
/* the maximum dividend is 90999000/2, 0x02b6446c, this number is
also the most complex divisor. Hence, the dividend has,
assuming 32bit unsigned arithmetic, 6 clear bits on top, the
divisor 2 unused bits at the bottom. Also, the quotient is
always less than 1/2. Borrowed from VES1893.c, of course */
tmp=srate<<6;
BDRI=fclk>>2;
ratio=(tmp/BDRI);
tmp=(tmp%BDRI)<<8;
ratio=(ratio<<8)+(tmp/BDRI);
tmp=(tmp%BDRI)<<8;
ratio=(ratio<<8)+(tmp/BDRI);
tmp=(tmp%BDRI)<<1;
ratio=(ratio<<1)+(tmp/BDRI);
dprintk("srate= %d (range %d, up to %d)\n", srate,i,bands[i]);
dprintk("fclk = %d\n", fclk);
dprintk("ratio= %08x\n", ratio);
cx24110_writereg(state, 0x1, (ratio>>16)&0xff);
cx24110_writereg(state, 0x2, (ratio>>8)&0xff);
cx24110_writereg(state, 0x3, (ratio)&0xff);
return 0;
}
static int _cx24110_pll_write (struct dvb_frontend* fe, u8 *buf, int len)
{
struct cx24110_state *state = fe->demodulator_priv;
if (len != 3)
return -EINVAL;
/* tuner data is 21 bits long, must be left-aligned in data */
/* tuner cx24108 is written through a dedicated 3wire interface on the demod chip */
/* FIXME (low): add error handling, avoid infinite loops if HW fails... */
cx24110_writereg(state,0x6d,0x30); /* auto mode at 62kHz */
cx24110_writereg(state,0x70,0x15); /* auto mode 21 bits */
/* if the auto tuner writer is still busy, clear it out */
while (cx24110_readreg(state,0x6d)&0x80)
cx24110_writereg(state,0x72,0);
/* write the topmost 8 bits */
cx24110_writereg(state,0x72,buf[0]);
/* wait for the send to be completed */
while ((cx24110_readreg(state,0x6d)&0xc0)==0x80)
;
/* send another 8 bytes */
cx24110_writereg(state,0x72,buf[1]);
while ((cx24110_readreg(state,0x6d)&0xc0)==0x80)
;
/* and the topmost 5 bits of this byte */
cx24110_writereg(state,0x72,buf[2]);
while ((cx24110_readreg(state,0x6d)&0xc0)==0x80)
;
/* now strobe the enable line once */
cx24110_writereg(state,0x6d,0x32);
cx24110_writereg(state,0x6d,0x30);
return 0;
}
static int cx24110_initfe(struct dvb_frontend* fe)
{
struct cx24110_state *state = fe->demodulator_priv;
/* fixme (low): error handling */
int i;
dprintk("%s: init chip\n", __func__);
for(i = 0; i < ARRAY_SIZE(cx24110_regdata); i++) {
cx24110_writereg(state, cx24110_regdata[i].reg, cx24110_regdata[i].data);
};
return 0;
}
static int cx24110_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage)
{
struct cx24110_state *state = fe->demodulator_priv;
switch (voltage) {
case SEC_VOLTAGE_13:
return cx24110_writereg(state,0x76,(cx24110_readreg(state,0x76)&0x3b)|0xc0);
case SEC_VOLTAGE_18:
return cx24110_writereg(state,0x76,(cx24110_readreg(state,0x76)&0x3b)|0x40);
default:
return -EINVAL;
};
}
static int cx24110_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t burst)
{
int rv, bit;
struct cx24110_state *state = fe->demodulator_priv;
unsigned long timeout;
if (burst == SEC_MINI_A)
bit = 0x00;
else if (burst == SEC_MINI_B)
bit = 0x08;
else
return -EINVAL;
rv = cx24110_readreg(state, 0x77);
if (!(rv & 0x04))
cx24110_writereg(state, 0x77, rv | 0x04);
rv = cx24110_readreg(state, 0x76);
cx24110_writereg(state, 0x76, ((rv & 0x90) | 0x40 | bit));
timeout = jiffies + msecs_to_jiffies(100);
while (!time_after(jiffies, timeout) && !(cx24110_readreg(state, 0x76) & 0x40))
; /* wait for LNB ready */
return 0;
}
static int cx24110_send_diseqc_msg(struct dvb_frontend* fe,
struct dvb_diseqc_master_cmd *cmd)
{
int i, rv;
struct cx24110_state *state = fe->demodulator_priv;
unsigned long timeout;
if (cmd->msg_len < 3 || cmd->msg_len > 6)
return -EINVAL; /* not implemented */
for (i = 0; i < cmd->msg_len; i++)
cx24110_writereg(state, 0x79 + i, cmd->msg[i]);
rv = cx24110_readreg(state, 0x77);
if (rv & 0x04) {
cx24110_writereg(state, 0x77, rv & ~0x04);
msleep(30); /* reportedly fixes switching problems */
}
rv = cx24110_readreg(state, 0x76);
cx24110_writereg(state, 0x76, ((rv & 0x90) | 0x40) | ((cmd->msg_len-3) & 3));
timeout = jiffies + msecs_to_jiffies(100);
while (!time_after(jiffies, timeout) && !(cx24110_readreg(state, 0x76) & 0x40))
; /* wait for LNB ready */
return 0;
}
static int cx24110_read_status(struct dvb_frontend* fe, fe_status_t* status)
{
struct cx24110_state *state = fe->demodulator_priv;
int sync = cx24110_readreg (state, 0x55);
*status = 0;
if (sync & 0x10)
*status |= FE_HAS_SIGNAL;
if (sync & 0x08)
*status |= FE_HAS_CARRIER;
sync = cx24110_readreg (state, 0x08);
if (sync & 0x40)
*status |= FE_HAS_VITERBI;
if (sync & 0x20)
*status |= FE_HAS_SYNC;
if ((sync & 0x60) == 0x60)
*status |= FE_HAS_LOCK;
return 0;
}
static int cx24110_read_ber(struct dvb_frontend* fe, u32* ber)
{
struct cx24110_state *state = fe->demodulator_priv;
/* fixme (maybe): value range is 16 bit. Scale? */
if(cx24110_readreg(state,0x24)&0x10) {
/* the Viterbi error counter has finished one counting window */
cx24110_writereg(state,0x24,0x04); /* select the ber reg */
state->lastber=cx24110_readreg(state,0x25)|
(cx24110_readreg(state,0x26)<<8);
cx24110_writereg(state,0x24,0x04); /* start new count window */
cx24110_writereg(state,0x24,0x14);
}
*ber = state->lastber;
return 0;
}
static int cx24110_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
{
struct cx24110_state *state = fe->demodulator_priv;
/* no provision in hardware. Read the frontend AGC accumulator. No idea how to scale this, but I know it is 2s complement */
u8 signal = cx24110_readreg (state, 0x27)+128;
*signal_strength = (signal << 8) | signal;
return 0;
}
static int cx24110_read_snr(struct dvb_frontend* fe, u16* snr)
{
struct cx24110_state *state = fe->demodulator_priv;
/* no provision in hardware. Can be computed from the Es/N0 estimator, but I don't know how. */
if(cx24110_readreg(state,0x6a)&0x80) {
/* the Es/N0 error counter has finished one counting window */
state->lastesn0=cx24110_readreg(state,0x69)|
(cx24110_readreg(state,0x68)<<8);
cx24110_writereg(state,0x6a,0x84); /* start new count window */
}
*snr = state->lastesn0;
return 0;
}
static int cx24110_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
{
struct cx24110_state *state = fe->demodulator_priv;
u32 lastbyer;
if(cx24110_readreg(state,0x10)&0x40) {
/* the RS error counter has finished one counting window */
cx24110_writereg(state,0x10,0x60); /* select the byer reg */
lastbyer=cx24110_readreg(state,0x12)|
(cx24110_readreg(state,0x13)<<8)|
(cx24110_readreg(state,0x14)<<16);
cx24110_writereg(state,0x10,0x70); /* select the bler reg */
state->lastbler=cx24110_readreg(state,0x12)|
(cx24110_readreg(state,0x13)<<8)|
(cx24110_readreg(state,0x14)<<16);
cx24110_writereg(state,0x10,0x20); /* start new count window */
}
*ucblocks = state->lastbler;
return 0;
}
static int cx24110_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
{
struct cx24110_state *state = fe->demodulator_priv;
if (fe->ops.tuner_ops.set_params) {
fe->ops.tuner_ops.set_params(fe, p);
if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
}
cx24110_set_inversion (state, p->inversion);
cx24110_set_fec (state, p->u.qpsk.fec_inner);
cx24110_set_symbolrate (state, p->u.qpsk.symbol_rate);
cx24110_writereg(state,0x04,0x05); /* start aquisition */
return 0;
}
static int cx24110_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
{
struct cx24110_state *state = fe->demodulator_priv;
s32 afc; unsigned sclk;
/* cannot read back tuner settings (freq). Need to have some private storage */
sclk = cx24110_readreg (state, 0x07) & 0x03;
/* ok, real AFC (FEDR) freq. is afc/2^24*fsamp, fsamp=45/60/80/90MHz.
* Need 64 bit arithmetic. Is thiss possible in the kernel? */
if (sclk==0) sclk=90999000L/2L;
else if (sclk==1) sclk=60666000L;
else if (sclk==2) sclk=80888000L;
else sclk=90999000L;
sclk>>=8;
afc = sclk*(cx24110_readreg (state, 0x44)&0x1f)+
((sclk*cx24110_readreg (state, 0x45))>>8)+
((sclk*cx24110_readreg (state, 0x46))>>16);
p->frequency += afc;
p->inversion = (cx24110_readreg (state, 0x22) & 0x10) ?
INVERSION_ON : INVERSION_OFF;
p->u.qpsk.fec_inner = cx24110_get_fec (state);
return 0;
}
static int cx24110_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
{
struct cx24110_state *state = fe->demodulator_priv;
return cx24110_writereg(state,0x76,(cx24110_readreg(state,0x76)&~0x10)|(((tone==SEC_TONE_ON))?0x10:0));
}
static void cx24110_release(struct dvb_frontend* fe)
{
struct cx24110_state* state = fe->demodulator_priv;
kfree(state);
}
static struct dvb_frontend_ops cx24110_ops;
struct dvb_frontend* cx24110_attach(const struct cx24110_config* config,
struct i2c_adapter* i2c)
{
struct cx24110_state* state = NULL;
int ret;
/* allocate memory for the internal state */
state = kzalloc(sizeof(struct cx24110_state), GFP_KERNEL);
if (state == NULL) goto error;
/* setup the state */
state->config = config;
state->i2c = i2c;
state->lastber = 0;
state->lastbler = 0;
state->lastesn0 = 0;
/* check if the demod is there */
ret = cx24110_readreg(state, 0x00);
if ((ret != 0x5a) && (ret != 0x69)) goto error;
/* create dvb_frontend */
memcpy(&state->frontend.ops, &cx24110_ops, sizeof(struct dvb_frontend_ops));
state->frontend.demodulator_priv = state;
return &state->frontend;
error:
kfree(state);
return NULL;
}
static struct dvb_frontend_ops cx24110_ops = {
.info = {
.name = "Conexant CX24110 DVB-S",
.type = FE_QPSK,
.frequency_min = 950000,
.frequency_max = 2150000,
.frequency_stepsize = 1011, /* kHz for QPSK frontends */
.frequency_tolerance = 29500,
.symbol_rate_min = 1000000,
.symbol_rate_max = 45000000,
.caps = FE_CAN_INVERSION_AUTO |
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
FE_CAN_QPSK | FE_CAN_RECOVER
},
.release = cx24110_release,
.init = cx24110_initfe,
.write = _cx24110_pll_write,
.set_frontend = cx24110_set_frontend,
.get_frontend = cx24110_get_frontend,
.read_status = cx24110_read_status,
.read_ber = cx24110_read_ber,
.read_signal_strength = cx24110_read_signal_strength,
.read_snr = cx24110_read_snr,
.read_ucblocks = cx24110_read_ucblocks,
.diseqc_send_master_cmd = cx24110_send_diseqc_msg,
.set_tone = cx24110_set_tone,
.set_voltage = cx24110_set_voltage,
.diseqc_send_burst = cx24110_diseqc_send_burst,
};
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
MODULE_DESCRIPTION("Conexant CX24110 DVB-S Demodulator driver");
MODULE_AUTHOR("Peter Hettkamp");
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(cx24110_attach);