#include "dvb_frontend.h"
#include "cx22702.h"
-
struct cx22702_state {
- struct i2c_adapter* i2c;
+ struct i2c_adapter *i2c;
/* configuration settings */
- const struct cx22702_config* config;
+ const struct cx22702_config *config;
struct dvb_frontend frontend;
};
static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Enable verbose debug messages");
+
#define dprintk if (debug) printk
/* Register values to initialise the demod */
-static u8 init_tab [] = {
+static u8 init_tab[] = {
0x00, 0x00, /* Stop aquisition */
0x0B, 0x06,
0x09, 0x01,
0xfd, 0x00,
};
-static int cx22702_writereg (struct cx22702_state* state, u8 reg, u8 data)
+static int cx22702_writereg(struct cx22702_state *state, u8 reg, u8 data)
{
int ret;
- u8 buf [] = { reg, data };
- struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
+ u8 buf[] = { reg, data };
+ struct i2c_msg msg = {
+ .addr = state->config->demod_address, .flags = 0,
+ .buf = buf, .len = 2 };
ret = i2c_transfer(state->i2c, &msg, 1);
if (ret != 1)
- printk("%s: writereg error (reg == 0x%02x, val == 0x%02x, ret == %i)\n",
+ printk(KERN_ERR
+ "%s: error (reg == 0x%02x, val == 0x%02x, ret == %i)\n",
__func__, reg, data, ret);
return (ret != 1) ? -1 : 0;
}
-static u8 cx22702_readreg (struct cx22702_state* state, u8 reg)
+static u8 cx22702_readreg(struct cx22702_state *state, u8 reg)
{
int ret;
- u8 b0 [] = { reg };
- u8 b1 [] = { 0 };
+ 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 } };
+ 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)
- printk("%s: readreg error (ret == %i)\n", __func__, ret);
+ printk(KERN_ERR "%s: readreg error (ret == %i)\n",
+ __func__, ret);
return b1[0];
}
-static int cx22702_set_inversion (struct cx22702_state *state, int inversion)
+static int cx22702_set_inversion(struct cx22702_state *state, int inversion)
{
u8 val;
switch (inversion) {
-
- case INVERSION_AUTO:
- return -EOPNOTSUPP;
-
- case INVERSION_ON:
- val = cx22702_readreg (state, 0x0C);
- return cx22702_writereg (state, 0x0C, val | 0x01);
-
- case INVERSION_OFF:
- val = cx22702_readreg (state, 0x0C);
- return cx22702_writereg (state, 0x0C, val & 0xfe);
-
- default:
- return -EINVAL;
-
+ case INVERSION_AUTO:
+ return -EOPNOTSUPP;
+ case INVERSION_ON:
+ val = cx22702_readreg(state, 0x0C);
+ return cx22702_writereg(state, 0x0C, val | 0x01);
+ case INVERSION_OFF:
+ val = cx22702_readreg(state, 0x0C);
+ return cx22702_writereg(state, 0x0C, val & 0xfe);
+ default:
+ return -EINVAL;
}
}
/* Retrieve the demod settings */
-static int cx22702_get_tps (struct cx22702_state *state, struct dvb_ofdm_parameters *p)
+static int cx22702_get_tps(struct cx22702_state *state,
+ struct dvb_ofdm_parameters *p)
{
u8 val;
if (!(cx22702_readreg(state, 0x0A) & 0x20))
return -EAGAIN;
- val = cx22702_readreg (state, 0x01);
- switch( (val&0x18)>>3) {
- case 0: p->constellation = QPSK; break;
- case 1: p->constellation = QAM_16; break;
- case 2: p->constellation = QAM_64; break;
+ val = cx22702_readreg(state, 0x01);
+ switch ((val & 0x18) >> 3) {
+ case 0:
+ p->constellation = QPSK;
+ break;
+ case 1:
+ p->constellation = QAM_16;
+ break;
+ case 2:
+ p->constellation = QAM_64;
+ break;
}
- switch( val&0x07 ) {
- case 0: p->hierarchy_information = HIERARCHY_NONE; break;
- case 1: p->hierarchy_information = HIERARCHY_1; break;
- case 2: p->hierarchy_information = HIERARCHY_2; break;
- case 3: p->hierarchy_information = HIERARCHY_4; break;
+ switch (val & 0x07) {
+ case 0:
+ p->hierarchy_information = HIERARCHY_NONE;
+ break;
+ case 1:
+ p->hierarchy_information = HIERARCHY_1;
+ break;
+ case 2:
+ p->hierarchy_information = HIERARCHY_2;
+ break;
+ case 3:
+ p->hierarchy_information = HIERARCHY_4;
+ break;
}
- val = cx22702_readreg (state, 0x02);
- switch( (val&0x38)>>3 ) {
- case 0: p->code_rate_HP = FEC_1_2; break;
- case 1: p->code_rate_HP = FEC_2_3; break;
- case 2: p->code_rate_HP = FEC_3_4; break;
- case 3: p->code_rate_HP = FEC_5_6; break;
- case 4: p->code_rate_HP = FEC_7_8; break;
+ val = cx22702_readreg(state, 0x02);
+ switch ((val & 0x38) >> 3) {
+ case 0:
+ p->code_rate_HP = FEC_1_2;
+ break;
+ case 1:
+ p->code_rate_HP = FEC_2_3;
+ break;
+ case 2:
+ p->code_rate_HP = FEC_3_4;
+ break;
+ case 3:
+ p->code_rate_HP = FEC_5_6;
+ break;
+ case 4:
+ p->code_rate_HP = FEC_7_8;
+ break;
}
- switch( val&0x07 ) {
- case 0: p->code_rate_LP = FEC_1_2; break;
- case 1: p->code_rate_LP = FEC_2_3; break;
- case 2: p->code_rate_LP = FEC_3_4; break;
- case 3: p->code_rate_LP = FEC_5_6; break;
- case 4: p->code_rate_LP = FEC_7_8; break;
+ switch (val & 0x07) {
+ case 0:
+ p->code_rate_LP = FEC_1_2;
+ break;
+ case 1:
+ p->code_rate_LP = FEC_2_3;
+ break;
+ case 2:
+ p->code_rate_LP = FEC_3_4;
+ break;
+ case 3:
+ p->code_rate_LP = FEC_5_6;
+ break;
+ case 4:
+ p->code_rate_LP = FEC_7_8;
+ break;
}
-
- val = cx22702_readreg (state, 0x03);
- switch( (val&0x0c)>>2 ) {
- case 0: p->guard_interval = GUARD_INTERVAL_1_32; break;
- case 1: p->guard_interval = GUARD_INTERVAL_1_16; break;
- case 2: p->guard_interval = GUARD_INTERVAL_1_8; break;
- case 3: p->guard_interval = GUARD_INTERVAL_1_4; break;
+ val = cx22702_readreg(state, 0x03);
+ switch ((val & 0x0c) >> 2) {
+ case 0:
+ p->guard_interval = GUARD_INTERVAL_1_32;
+ break;
+ case 1:
+ p->guard_interval = GUARD_INTERVAL_1_16;
+ break;
+ case 2:
+ p->guard_interval = GUARD_INTERVAL_1_8;
+ break;
+ case 3:
+ p->guard_interval = GUARD_INTERVAL_1_4;
+ break;
}
- switch( val&0x03 ) {
- case 0: p->transmission_mode = TRANSMISSION_MODE_2K; break;
- case 1: p->transmission_mode = TRANSMISSION_MODE_8K; break;
+ switch (val & 0x03) {
+ case 0:
+ p->transmission_mode = TRANSMISSION_MODE_2K;
+ break;
+ case 1:
+ p->transmission_mode = TRANSMISSION_MODE_8K;
+ break;
}
return 0;
}
-static int cx22702_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
+static int cx22702_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
{
- struct cx22702_state* state = fe->demodulator_priv;
- dprintk ("%s(%d)\n", __func__, enable);
+ struct cx22702_state *state = fe->demodulator_priv;
+ dprintk("%s(%d)\n", __func__, enable);
if (enable)
- return cx22702_writereg (state, 0x0D, cx22702_readreg(state, 0x0D) & 0xfe);
+ return cx22702_writereg(state, 0x0D,
+ cx22702_readreg(state, 0x0D) & 0xfe);
else
- return cx22702_writereg (state, 0x0D, cx22702_readreg(state, 0x0D) | 1);
+ return cx22702_writereg(state, 0x0D,
+ cx22702_readreg(state, 0x0D) | 1);
}
/* Talk to the demod, set the FEC, GUARD, QAM settings etc */
-static int cx22702_set_tps (struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
+static int cx22702_set_tps(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *p)
{
u8 val;
- struct cx22702_state* state = fe->demodulator_priv;
+ struct cx22702_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);
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
}
/* set inversion */
- cx22702_set_inversion (state, p->inversion);
+ cx22702_set_inversion(state, p->inversion);
/* set bandwidth */
- switch(p->u.ofdm.bandwidth) {
+ switch (p->u.ofdm.bandwidth) {
case BANDWIDTH_6_MHZ:
- cx22702_writereg(state, 0x0C, (cx22702_readreg(state, 0x0C) & 0xcf) | 0x20 );
+ cx22702_writereg(state, 0x0C,
+ (cx22702_readreg(state, 0x0C) & 0xcf) | 0x20);
break;
case BANDWIDTH_7_MHZ:
- cx22702_writereg(state, 0x0C, (cx22702_readreg(state, 0x0C) & 0xcf) | 0x10 );
+ cx22702_writereg(state, 0x0C,
+ (cx22702_readreg(state, 0x0C) & 0xcf) | 0x10);
break;
case BANDWIDTH_8_MHZ:
- cx22702_writereg(state, 0x0C, cx22702_readreg(state, 0x0C) &0xcf );
+ cx22702_writereg(state, 0x0C,
+ cx22702_readreg(state, 0x0C) & 0xcf);
break;
default:
- dprintk ("%s: invalid bandwidth\n",__func__);
+ dprintk("%s: invalid bandwidth\n", __func__);
return -EINVAL;
}
-
- p->u.ofdm.code_rate_LP = FEC_AUTO; //temp hack as manual not working
+ p->u.ofdm.code_rate_LP = FEC_AUTO; /* temp hack as manual not working */
/* use auto configuration? */
- if((p->u.ofdm.hierarchy_information==HIERARCHY_AUTO) ||
- (p->u.ofdm.constellation==QAM_AUTO) ||
- (p->u.ofdm.code_rate_HP==FEC_AUTO) ||
- (p->u.ofdm.code_rate_LP==FEC_AUTO) ||
- (p->u.ofdm.guard_interval==GUARD_INTERVAL_AUTO) ||
- (p->u.ofdm.transmission_mode==TRANSMISSION_MODE_AUTO) ) {
+ if ((p->u.ofdm.hierarchy_information == HIERARCHY_AUTO) ||
+ (p->u.ofdm.constellation == QAM_AUTO) ||
+ (p->u.ofdm.code_rate_HP == FEC_AUTO) ||
+ (p->u.ofdm.code_rate_LP == FEC_AUTO) ||
+ (p->u.ofdm.guard_interval == GUARD_INTERVAL_AUTO) ||
+ (p->u.ofdm.transmission_mode == TRANSMISSION_MODE_AUTO)) {
/* TPS Source - use hardware driven values */
cx22702_writereg(state, 0x06, 0x10);
cx22702_writereg(state, 0x07, 0x9);
cx22702_writereg(state, 0x08, 0xC1);
- cx22702_writereg(state, 0x0B, cx22702_readreg(state, 0x0B) & 0xfc );
- cx22702_writereg(state, 0x0C, (cx22702_readreg(state, 0x0C) & 0xBF) | 0x40 );
+ cx22702_writereg(state, 0x0B, cx22702_readreg(state, 0x0B)
+ & 0xfc);
+ cx22702_writereg(state, 0x0C,
+ (cx22702_readreg(state, 0x0C) & 0xBF) | 0x40);
cx22702_writereg(state, 0x00, 0x01); /* Begin aquisition */
- dprintk("%s: Autodetecting\n",__func__);
+ dprintk("%s: Autodetecting\n", __func__);
return 0;
}
/* manually programmed values */
- val=0;
- switch(p->u.ofdm.constellation) {
- case QPSK: val = (val&0xe7); break;
- case QAM_16: val = (val&0xe7)|0x08; break;
- case QAM_64: val = (val&0xe7)|0x10; break;
- default:
- dprintk ("%s: invalid constellation\n",__func__);
- return -EINVAL;
+ val = 0;
+ switch (p->u.ofdm.constellation) {
+ case QPSK:
+ val = (val & 0xe7);
+ break;
+ case QAM_16:
+ val = (val & 0xe7) | 0x08;
+ break;
+ case QAM_64:
+ val = (val & 0xe7) | 0x10;
+ break;
+ default:
+ dprintk("%s: invalid constellation\n", __func__);
+ return -EINVAL;
}
- switch(p->u.ofdm.hierarchy_information) {
- case HIERARCHY_NONE: val = (val&0xf8); break;
- case HIERARCHY_1: val = (val&0xf8)|1; break;
- case HIERARCHY_2: val = (val&0xf8)|2; break;
- case HIERARCHY_4: val = (val&0xf8)|3; break;
- default:
- dprintk ("%s: invalid hierarchy\n",__func__);
- return -EINVAL;
+ switch (p->u.ofdm.hierarchy_information) {
+ case HIERARCHY_NONE:
+ val = (val & 0xf8);
+ break;
+ case HIERARCHY_1:
+ val = (val & 0xf8) | 1;
+ break;
+ case HIERARCHY_2:
+ val = (val & 0xf8) | 2;
+ break;
+ case HIERARCHY_4:
+ val = (val & 0xf8) | 3;
+ break;
+ default:
+ dprintk("%s: invalid hierarchy\n", __func__);
+ return -EINVAL;
}
- cx22702_writereg (state, 0x06, val);
-
- val=0;
- switch(p->u.ofdm.code_rate_HP) {
- case FEC_NONE:
- case FEC_1_2: val = (val&0xc7); break;
- case FEC_2_3: val = (val&0xc7)|0x08; break;
- case FEC_3_4: val = (val&0xc7)|0x10; break;
- case FEC_5_6: val = (val&0xc7)|0x18; break;
- case FEC_7_8: val = (val&0xc7)|0x20; break;
- default:
- dprintk ("%s: invalid code_rate_HP\n",__func__);
- return -EINVAL;
+ cx22702_writereg(state, 0x06, val);
+
+ val = 0;
+ switch (p->u.ofdm.code_rate_HP) {
+ case FEC_NONE:
+ case FEC_1_2:
+ val = (val & 0xc7);
+ break;
+ case FEC_2_3:
+ val = (val & 0xc7) | 0x08;
+ break;
+ case FEC_3_4:
+ val = (val & 0xc7) | 0x10;
+ break;
+ case FEC_5_6:
+ val = (val & 0xc7) | 0x18;
+ break;
+ case FEC_7_8:
+ val = (val & 0xc7) | 0x20;
+ break;
+ default:
+ dprintk("%s: invalid code_rate_HP\n", __func__);
+ return -EINVAL;
}
- switch(p->u.ofdm.code_rate_LP) {
- case FEC_NONE:
- case FEC_1_2: val = (val&0xf8); break;
- case FEC_2_3: val = (val&0xf8)|1; break;
- case FEC_3_4: val = (val&0xf8)|2; break;
- case FEC_5_6: val = (val&0xf8)|3; break;
- case FEC_7_8: val = (val&0xf8)|4; break;
- default:
- dprintk ("%s: invalid code_rate_LP\n",__func__);
- return -EINVAL;
+ switch (p->u.ofdm.code_rate_LP) {
+ case FEC_NONE:
+ case FEC_1_2:
+ val = (val & 0xf8);
+ break;
+ case FEC_2_3:
+ val = (val & 0xf8) | 1;
+ break;
+ case FEC_3_4:
+ val = (val & 0xf8) | 2;
+ break;
+ case FEC_5_6:
+ val = (val & 0xf8) | 3;
+ break;
+ case FEC_7_8:
+ val = (val & 0xf8) | 4;
+ break;
+ default:
+ dprintk("%s: invalid code_rate_LP\n", __func__);
+ return -EINVAL;
}
- cx22702_writereg (state, 0x07, val);
-
- val=0;
- switch(p->u.ofdm.guard_interval) {
- case GUARD_INTERVAL_1_32: val = (val&0xf3); break;
- case GUARD_INTERVAL_1_16: val = (val&0xf3)|0x04; break;
- case GUARD_INTERVAL_1_8: val = (val&0xf3)|0x08; break;
- case GUARD_INTERVAL_1_4: val = (val&0xf3)|0x0c; break;
- default:
- dprintk ("%s: invalid guard_interval\n",__func__);
- return -EINVAL;
+ cx22702_writereg(state, 0x07, val);
+
+ val = 0;
+ switch (p->u.ofdm.guard_interval) {
+ case GUARD_INTERVAL_1_32:
+ val = (val & 0xf3);
+ break;
+ case GUARD_INTERVAL_1_16:
+ val = (val & 0xf3) | 0x04;
+ break;
+ case GUARD_INTERVAL_1_8:
+ val = (val & 0xf3) | 0x08;
+ break;
+ case GUARD_INTERVAL_1_4:
+ val = (val & 0xf3) | 0x0c;
+ break;
+ default:
+ dprintk("%s: invalid guard_interval\n", __func__);
+ return -EINVAL;
}
- switch(p->u.ofdm.transmission_mode) {
- case TRANSMISSION_MODE_2K: val = (val&0xfc); break;
- case TRANSMISSION_MODE_8K: val = (val&0xfc)|1; break;
- default:
- dprintk ("%s: invalid transmission_mode\n",__func__);
- return -EINVAL;
+ switch (p->u.ofdm.transmission_mode) {
+ case TRANSMISSION_MODE_2K:
+ val = (val & 0xfc);
+ break;
+ case TRANSMISSION_MODE_8K:
+ val = (val & 0xfc) | 1;
+ break;
+ default:
+ dprintk("%s: invalid transmission_mode\n", __func__);
+ return -EINVAL;
}
cx22702_writereg(state, 0x08, val);
- cx22702_writereg(state, 0x0B, (cx22702_readreg(state, 0x0B) & 0xfc) | 0x02 );
- cx22702_writereg(state, 0x0C, (cx22702_readreg(state, 0x0C) & 0xBF) | 0x40 );
+ cx22702_writereg(state, 0x0B,
+ (cx22702_readreg(state, 0x0B) & 0xfc) | 0x02);
+ cx22702_writereg(state, 0x0C,
+ (cx22702_readreg(state, 0x0C) & 0xBF) | 0x40);
/* Begin channel aquisition */
cx22702_writereg(state, 0x00, 0x01);
/* Reset the demod hardware and reset all of the configuration registers
to a default state. */
-static int cx22702_init (struct dvb_frontend* fe)
+static int cx22702_init(struct dvb_frontend *fe)
{
int i;
- struct cx22702_state* state = fe->demodulator_priv;
+ struct cx22702_state *state = fe->demodulator_priv;
- cx22702_writereg (state, 0x00, 0x02);
+ cx22702_writereg(state, 0x00, 0x02);
msleep(10);
- for (i=0; i<sizeof(init_tab); i+=2)
- cx22702_writereg (state, init_tab[i], init_tab[i+1]);
+ for (i = 0; i < ARRAY_SIZE(init_tab); i += 2)
+ cx22702_writereg(state, init_tab[i], init_tab[i + 1]);
- cx22702_writereg (state, 0xf8, (state->config->output_mode << 1) & 0x02);
+ cx22702_writereg(state, 0xf8, (state->config->output_mode << 1)
+ & 0x02);
cx22702_i2c_gate_ctrl(fe, 0);
return 0;
}
-static int cx22702_read_status(struct dvb_frontend* fe, fe_status_t* status)
+static int cx22702_read_status(struct dvb_frontend *fe, fe_status_t *status)
{
- struct cx22702_state* state = fe->demodulator_priv;
+ struct cx22702_state *state = fe->demodulator_priv;
u8 reg0A;
u8 reg23;
*status = 0;
- reg0A = cx22702_readreg (state, 0x0A);
- reg23 = cx22702_readreg (state, 0x23);
+ reg0A = cx22702_readreg(state, 0x0A);
+ reg23 = cx22702_readreg(state, 0x23);
- dprintk ("%s: status demod=0x%02x agc=0x%02x\n"
- ,__func__,reg0A,reg23);
+ dprintk("%s: status demod=0x%02x agc=0x%02x\n"
+ , __func__, reg0A, reg23);
- if(reg0A & 0x10) {
+ if (reg0A & 0x10) {
*status |= FE_HAS_LOCK;
*status |= FE_HAS_VITERBI;
*status |= FE_HAS_SYNC;
}
- if(reg0A & 0x20)
+ if (reg0A & 0x20)
*status |= FE_HAS_CARRIER;
- if(reg23 < 0xf0)
+ if (reg23 < 0xf0)
*status |= FE_HAS_SIGNAL;
return 0;
}
-static int cx22702_read_ber(struct dvb_frontend* fe, u32* ber)
+static int cx22702_read_ber(struct dvb_frontend *fe, u32 *ber)
{
- struct cx22702_state* state = fe->demodulator_priv;
+ struct cx22702_state *state = fe->demodulator_priv;
- if(cx22702_readreg (state, 0xE4) & 0x02) {
+ if (cx22702_readreg(state, 0xE4) & 0x02) {
/* Realtime statistics */
- *ber = (cx22702_readreg (state, 0xDE) & 0x7F) << 7
- | (cx22702_readreg (state, 0xDF)&0x7F);
+ *ber = (cx22702_readreg(state, 0xDE) & 0x7F) << 7
+ | (cx22702_readreg(state, 0xDF) & 0x7F);
} else {
/* Averagtine statistics */
- *ber = (cx22702_readreg (state, 0xDE) & 0x7F) << 7
- | cx22702_readreg (state, 0xDF);
+ *ber = (cx22702_readreg(state, 0xDE) & 0x7F) << 7
+ | cx22702_readreg(state, 0xDF);
}
return 0;
}
-static int cx22702_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
+static int cx22702_read_signal_strength(struct dvb_frontend *fe,
+ u16 *signal_strength)
{
- struct cx22702_state* state = fe->demodulator_priv;
+ struct cx22702_state *state = fe->demodulator_priv;
u16 rs_ber = 0;
- rs_ber = cx22702_readreg (state, 0x23);
+ rs_ber = cx22702_readreg(state, 0x23);
*signal_strength = (rs_ber << 8) | rs_ber;
return 0;
}
-static int cx22702_read_snr(struct dvb_frontend* fe, u16* snr)
+static int cx22702_read_snr(struct dvb_frontend *fe, u16 *snr)
{
- struct cx22702_state* state = fe->demodulator_priv;
+ struct cx22702_state *state = fe->demodulator_priv;
- u16 rs_ber=0;
- if(cx22702_readreg (state, 0xE4) & 0x02) {
+ u16 rs_ber = 0;
+ if (cx22702_readreg(state, 0xE4) & 0x02) {
/* Realtime statistics */
- rs_ber = (cx22702_readreg (state, 0xDE) & 0x7F) << 7
- | (cx22702_readreg (state, 0xDF)& 0x7F);
+ rs_ber = (cx22702_readreg(state, 0xDE) & 0x7F) << 7
+ | (cx22702_readreg(state, 0xDF) & 0x7F);
} else {
/* Averagine statistics */
- rs_ber = (cx22702_readreg (state, 0xDE) & 0x7F) << 8
- | cx22702_readreg (state, 0xDF);
+ rs_ber = (cx22702_readreg(state, 0xDE) & 0x7F) << 8
+ | cx22702_readreg(state, 0xDF);
}
*snr = ~rs_ber;
return 0;
}
-static int cx22702_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
+static int cx22702_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
{
- struct cx22702_state* state = fe->demodulator_priv;
+ struct cx22702_state *state = fe->demodulator_priv;
u8 _ucblocks;
/* RS Uncorrectable Packet Count then reset */
- _ucblocks = cx22702_readreg (state, 0xE3);
+ _ucblocks = cx22702_readreg(state, 0xE3);
if (state->prevUCBlocks < _ucblocks)
*ucblocks = (_ucblocks - state->prevUCBlocks);
else
return 0;
}
-static int cx22702_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
+static int cx22702_get_frontend(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *p)
{
- struct cx22702_state* state = fe->demodulator_priv;
+ struct cx22702_state *state = fe->demodulator_priv;
- u8 reg0C = cx22702_readreg (state, 0x0C);
+ u8 reg0C = cx22702_readreg(state, 0x0C);
p->inversion = reg0C & 0x1 ? INVERSION_ON : INVERSION_OFF;
- return cx22702_get_tps (state, &p->u.ofdm);
+ return cx22702_get_tps(state, &p->u.ofdm);
}
-static int cx22702_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
+static int cx22702_get_tune_settings(struct dvb_frontend *fe,
+ struct dvb_frontend_tune_settings *tune)
{
tune->min_delay_ms = 1000;
return 0;
}
-static void cx22702_release(struct dvb_frontend* fe)
+static void cx22702_release(struct dvb_frontend *fe)
{
- struct cx22702_state* state = fe->demodulator_priv;
+ struct cx22702_state *state = fe->demodulator_priv;
kfree(state);
}
static struct dvb_frontend_ops cx22702_ops;
-struct dvb_frontend* cx22702_attach(const struct cx22702_config* config,
- struct i2c_adapter* i2c)
+struct dvb_frontend *cx22702_attach(const struct cx22702_config *config,
+ struct i2c_adapter *i2c)
{
- struct cx22702_state* state = NULL;
+ struct cx22702_state *state = NULL;
/* allocate memory for the internal state */
state = kmalloc(sizeof(struct cx22702_state), GFP_KERNEL);
goto error;
/* create dvb_frontend */
- memcpy(&state->frontend.ops, &cx22702_ops, sizeof(struct dvb_frontend_ops));
+ memcpy(&state->frontend.ops, &cx22702_ops,
+ sizeof(struct dvb_frontend_ops));
state->frontend.demodulator_priv = state;
return &state->frontend;
kfree(state);
return NULL;
}
+EXPORT_SYMBOL(cx22702_attach);
static struct dvb_frontend_ops cx22702_ops = {
.read_ucblocks = cx22702_read_ucblocks,
};
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Enable verbose debug messages");
-
MODULE_DESCRIPTION("Conexant CX22702 DVB-T Demodulator driver");
MODULE_AUTHOR("Steven Toth");
MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(cx22702_attach);
projects / linux-2.6-omap-h63xx.git / commitdiff