struct cx24123_state
{
struct i2c_adapter* i2c;
- struct dvb_frontend_ops ops;
const struct cx24123_config* config;
struct dvb_frontend frontend;
- u32 lastber;
- u16 snr;
- u8 lnbreg;
-
/* Some PLL specifics for tuning */
u32 VCAarg;
u32 VGAarg;
{0x06, 0x31}, /* MPEG (default) */
{0x0b, 0x00}, /* Freq search start point (default) */
{0x0c, 0x00}, /* Demodulator sample gain (default) */
- {0x0d, 0x02}, /* Frequency search range = Fsymbol / 4 (default) */
+ {0x0d, 0x7f}, /* Force driver to shift until the maximum (+-10 MHz) */
{0x0e, 0x03}, /* Default non-inverted, FEC 3/4 (default) */
{0x0f, 0xfe}, /* FEC search mask (all supported codes) */
{0x10, 0x01}, /* Default search inversion, no repeat (default) */
{0x44, 0x00}, /* Constellation (default) */
{0x45, 0x00}, /* Symbol count (default) */
{0x46, 0x0d}, /* Symbol rate estimator on (default) */
- {0x56, 0x41}, /* Various (default) */
+ {0x56, 0xc1}, /* Error Counter = Viterbi BER */
{0x57, 0xff}, /* Error Counter Window (default) */
+ {0x5c, 0x20}, /* Acquisition AFC Expiration window (default is 0x10) */
{0x67, 0x83}, /* Non-DCII symbol clock */
};
return 0;
}
-static int cx24123_writelnbreg(struct cx24123_state* state, int reg, int data)
-{
- u8 buf[] = { reg, data };
- /* fixme: put the intersil addr int the config */
- struct i2c_msg msg = { .addr = 0x08, .flags = 0, .buf = buf, .len = 2 };
- int err;
-
- if (debug>1)
- printk("cx24123: %s: writeln addr=0x08, reg 0x%02x, value 0x%02x\n",
- __FUNCTION__,reg, data);
-
- if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
- printk("%s: writelnbreg error (err == %i, reg == 0x%02x,"
- " data == 0x%02x)\n", __FUNCTION__, err, reg, data);
- return -EREMOTEIO;
- }
-
- /* cache the write, no way to read back */
- state->lnbreg = data;
-
- return 0;
-}
-
static int cx24123_readreg(struct cx24123_state* state, u8 reg)
{
int ret;
return b1[0];
}
-static int cx24123_readlnbreg(struct cx24123_state* state, u8 reg)
-{
- return state->lnbreg;
-}
-
static int cx24123_set_inversion(struct cx24123_state* state, fe_spectral_inversion_t inversion)
{
u8 nom_reg = cx24123_readreg(state, 0x0e);
if ( (fec < FEC_NONE) || (fec > FEC_AUTO) )
fec = FEC_AUTO;
+ /* Set the soft decision threshold */
+ if(fec == FEC_1_2)
+ cx24123_writereg(state, 0x43, cx24123_readreg(state, 0x43) | 0x01);
+ else
+ cx24123_writereg(state, 0x43, cx24123_readreg(state, 0x43) & ~0x01);
+
switch (fec) {
case FEC_1_2:
dprintk("%s: set FEC to 1/2\n",__FUNCTION__);
u8 pll_mult;
/* check if symbol rate is within limits */
- if ((srate > state->ops.info.symbol_rate_max) ||
- (srate < state->ops.info.symbol_rate_min))
+ if ((srate > state->frontend.ops.info.symbol_rate_max) ||
+ (srate < state->frontend.ops.info.symbol_rate_min))
return -EOPNOTSUPP;;
/* choose the sampling rate high enough for the required operation,
ndiv = ( ((p->frequency * vco_div * 10) / (2 * XTAL / 1000)) / 32) & 0x1ff;
adiv = ( ((p->frequency * vco_div * 10) / (2 * XTAL / 1000)) % 32) & 0x1f;
- if (adiv == 0)
- ndiv++;
+ if (adiv == 0 && ndiv > 0)
+ ndiv--;
/* control bits 11, refdiv 11, charge pump polarity 1, charge pump current, ndiv, adiv */
state->pllarg = (3 << 19) | (3 << 17) | (1 << 16) | (pump << 14) | (ndiv << 5) | adiv;
for (i = 0; i < sizeof(cx24123_regdata) / sizeof(cx24123_regdata[0]); i++)
cx24123_writereg(state, cx24123_regdata[i].reg, cx24123_regdata[i].data);
- if (state->config->pll_init)
- state->config->pll_init(fe);
-
- /* Configure the LNB for 14V */
- if (state->config->use_isl6421)
- cx24123_writelnbreg(state, 0x0, 0x2a);
+ /* Set the LNB polarity */
+ if(state->config->lnb_polarity)
+ cx24123_writereg(state, 0x32, cx24123_readreg(state, 0x32) | 0x02);
return 0;
}
struct cx24123_state *state = fe->demodulator_priv;
u8 val;
- switch (state->config->use_isl6421) {
-
- case 1:
-
- val = cx24123_readlnbreg(state, 0x0);
-
- switch (voltage) {
- case SEC_VOLTAGE_13:
- dprintk("%s: isl6421 voltage = 13V\n",__FUNCTION__);
- return cx24123_writelnbreg(state, 0x0, val & 0x32); /* V 13v */
- case SEC_VOLTAGE_18:
- dprintk("%s: isl6421 voltage = 18V\n",__FUNCTION__);
- return cx24123_writelnbreg(state, 0x0, val | 0x04); /* H 18v */
- case SEC_VOLTAGE_OFF:
- dprintk("%s: isl5421 voltage off\n",__FUNCTION__);
- return cx24123_writelnbreg(state, 0x0, val & 0x30);
- default:
- return -EINVAL;
- };
-
- case 0:
-
- val = cx24123_readreg(state, 0x29);
-
- switch (voltage) {
- case SEC_VOLTAGE_13:
- dprintk("%s: setting voltage 13V\n", __FUNCTION__);
- if (state->config->enable_lnb_voltage)
- state->config->enable_lnb_voltage(fe, 1);
- return cx24123_writereg(state, 0x29, val | 0x80);
- case SEC_VOLTAGE_18:
- dprintk("%s: setting voltage 18V\n", __FUNCTION__);
- if (state->config->enable_lnb_voltage)
- state->config->enable_lnb_voltage(fe, 1);
- return cx24123_writereg(state, 0x29, val & 0x7f);
- case SEC_VOLTAGE_OFF:
- dprintk("%s: setting voltage off\n", __FUNCTION__);
- if (state->config->enable_lnb_voltage)
- state->config->enable_lnb_voltage(fe, 0);
- return 0;
- default:
- return -EINVAL;
- };
- }
+ val = cx24123_readreg(state, 0x29) & ~0x40;
+
+ switch (voltage) {
+ case SEC_VOLTAGE_13:
+ dprintk("%s: setting voltage 13V\n", __FUNCTION__);
+ return cx24123_writereg(state, 0x29, val & 0x7f);
+ case SEC_VOLTAGE_18:
+ dprintk("%s: setting voltage 18V\n", __FUNCTION__);
+ return cx24123_writereg(state, 0x29, val | 0x80);
+ case SEC_VOLTAGE_OFF:
+ /* already handled in cx88-dvb */
+ return 0;
+ default:
+ return -EINVAL;
+ };
return 0;
}
static int cx24123_send_diseqc_msg(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd *cmd)
{
struct cx24123_state *state = fe->demodulator_priv;
- int i, val;
+ int i, val, tone;
dprintk("%s:\n",__FUNCTION__);
- /* check if continuous tone has been stopped */
- if (state->config->use_isl6421)
- val = cx24123_readlnbreg(state, 0x00) & 0x10;
- else
- val = cx24123_readreg(state, 0x29) & 0x10;
-
-
- if (val) {
- printk("%s: ERROR: attempt to send diseqc command before tone is off\n", __FUNCTION__);
- return -ENOTSUPP;
- }
+ /* stop continuous tone if enabled */
+ tone = cx24123_readreg(state, 0x29);
+ if (tone & 0x10)
+ cx24123_writereg(state, 0x29, tone & ~0x50);
/* wait for diseqc queue ready */
cx24123_wait_for_diseqc(state);
/* select tone mode */
- cx24123_writereg(state, 0x2a, cx24123_readreg(state, 0x2a) & 0xf8);
+ cx24123_writereg(state, 0x2a, cx24123_readreg(state, 0x2a) & 0xfb);
for (i = 0; i < cmd->msg_len; i++)
cx24123_writereg(state, 0x2C + i, cmd->msg[i]);
/* wait for diseqc message to finish sending */
cx24123_wait_for_diseqc(state);
+ /* restart continuous tone if enabled */
+ if (tone & 0x10) {
+ cx24123_writereg(state, 0x29, tone & ~0x40);
+ }
+
return 0;
}
static int cx24123_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t burst)
{
struct cx24123_state *state = fe->demodulator_priv;
- int val;
+ int val, tone;
dprintk("%s:\n", __FUNCTION__);
- /* check if continuous tone has been stoped */
- if (state->config->use_isl6421)
- val = cx24123_readlnbreg(state, 0x00) & 0x10;
- else
- val = cx24123_readreg(state, 0x29) & 0x10;
-
-
- if (val) {
- printk("%s: ERROR: attempt to send diseqc command before tone is off\n", __FUNCTION__);
- return -ENOTSUPP;
- }
+ /* stop continuous tone if enabled */
+ tone = cx24123_readreg(state, 0x29);
+ if (tone & 0x10)
+ cx24123_writereg(state, 0x29, tone & ~0x50);
+ /* wait for diseqc queue ready */
cx24123_wait_for_diseqc(state);
/* select tone mode */
- val = cx24123_readreg(state, 0x2a) & 0xf8;
- cx24123_writereg(state, 0x2a, val | 0x04);
-
+ cx24123_writereg(state, 0x2a, cx24123_readreg(state, 0x2a) | 0x4);
+ msleep(30);
val = cx24123_readreg(state, 0x29);
-
if (burst == SEC_MINI_A)
cx24123_writereg(state, 0x29, ((val & 0x90) | 0x40 | 0x00));
else if (burst == SEC_MINI_B)
return -EINVAL;
cx24123_wait_for_diseqc(state);
+ cx24123_writereg(state, 0x2a, cx24123_readreg(state, 0x2a) & 0xfb);
+ /* restart continuous tone if enabled */
+ if (tone & 0x10) {
+ cx24123_writereg(state, 0x29, tone & ~0x40);
+ }
return 0;
}
if (lock & 0x01)
*status |= FE_HAS_SIGNAL;
if (sync & 0x02)
- *status |= FE_HAS_CARRIER;
+ *status |= FE_HAS_CARRIER; /* Phase locked */
if (sync & 0x04)
*status |= FE_HAS_VITERBI;
+
+ /* Reed-Solomon Status */
if (sync & 0x08)
*status |= FE_HAS_SYNC;
if (sync & 0x80)
- *status |= FE_HAS_LOCK;
+ *status |= FE_HAS_LOCK; /*Full Sync */
return 0;
}
{
struct cx24123_state *state = fe->demodulator_priv;
- state->lastber =
- ((cx24123_readreg(state, 0x1c) & 0x3f) << 16) |
+ /* The true bit error rate is this value divided by
+ the window size (set as 256 * 255) */
+ *ber = ((cx24123_readreg(state, 0x1c) & 0x3f) << 16) |
(cx24123_readreg(state, 0x1d) << 8 |
- cx24123_readreg(state, 0x1e));
-
- /* Do the signal quality processing here, it's derived from the BER. */
- /* Scale the BER from a 24bit to a SNR 16 bit where higher = better */
- if (state->lastber < 5000)
- state->snr = 655*100;
- else if ( (state->lastber >= 5000) && (state->lastber < 55000) )
- state->snr = 655*90;
- else if ( (state->lastber >= 55000) && (state->lastber < 150000) )
- state->snr = 655*80;
- else if ( (state->lastber >= 150000) && (state->lastber < 250000) )
- state->snr = 655*70;
- else if ( (state->lastber >= 250000) && (state->lastber < 450000) )
- state->snr = 655*65;
- else
- state->snr = 0;
-
- dprintk("%s: BER = %d, S/N index = %d\n",__FUNCTION__,state->lastber, state->snr);
+ cx24123_readreg(state, 0x1e));
- *ber = state->lastber;
+ dprintk("%s: BER = %d\n",__FUNCTION__,*ber);
return 0;
}
static int cx24123_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
{
struct cx24123_state *state = fe->demodulator_priv;
+
*signal_strength = cx24123_readreg(state, 0x3b) << 8; /* larger = better */
dprintk("%s: Signal strength = %d\n",__FUNCTION__,*signal_strength);
static int cx24123_read_snr(struct dvb_frontend* fe, u16* snr)
{
struct cx24123_state *state = fe->demodulator_priv;
- *snr = state->snr;
-
- dprintk("%s: read S/N index = %d\n",__FUNCTION__,*snr);
- return 0;
-}
+ /* Inverted raw Es/N0 count, totally bogus but better than the
+ BER threshold. */
+ *snr = 65535 - (((u16)cx24123_readreg(state, 0x18) << 8) |
+ (u16)cx24123_readreg(state, 0x19));
-static int cx24123_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
-{
- struct cx24123_state *state = fe->demodulator_priv;
- *ucblocks = state->lastber;
-
- dprintk("%s: ucblocks (ber) = %d\n",__FUNCTION__,*ucblocks);
+ dprintk("%s: read S/N index = %d\n",__FUNCTION__,*snr);
return 0;
}
struct cx24123_state *state = fe->demodulator_priv;
u8 val;
- switch (state->config->use_isl6421) {
- case 1:
-
- val = cx24123_readlnbreg(state, 0x0);
-
- switch (tone) {
- case SEC_TONE_ON:
- dprintk("%s: isl6421 sec tone on\n",__FUNCTION__);
- return cx24123_writelnbreg(state, 0x0, val | 0x10);
- case SEC_TONE_OFF:
- dprintk("%s: isl6421 sec tone off\n",__FUNCTION__);
- return cx24123_writelnbreg(state, 0x0, val & 0x2f);
- default:
- printk("%s: CASE reached default with tone=%d\n", __FUNCTION__, tone);
- return -EINVAL;
- }
-
- case 0:
+ /* wait for diseqc queue ready */
+ cx24123_wait_for_diseqc(state);
- val = cx24123_readreg(state, 0x29);
+ val = cx24123_readreg(state, 0x29) & ~0x40;
- switch (tone) {
- case SEC_TONE_ON:
- dprintk("%s: setting tone on\n", __FUNCTION__);
- return cx24123_writereg(state, 0x29, val | 0x10);
- case SEC_TONE_OFF:
- dprintk("%s: setting tone off\n",__FUNCTION__);
- return cx24123_writereg(state, 0x29, val & 0xef);
- default:
- printk("%s: CASE reached default with tone=%d\n", __FUNCTION__, tone);
- return -EINVAL;
- }
+ switch (tone) {
+ case SEC_TONE_ON:
+ dprintk("%s: setting tone on\n", __FUNCTION__);
+ return cx24123_writereg(state, 0x29, val | 0x10);
+ case SEC_TONE_OFF:
+ dprintk("%s: setting tone off\n",__FUNCTION__);
+ return cx24123_writereg(state, 0x29, val & 0xef);
+ default:
+ printk("%s: CASE reached default with tone=%d\n", __FUNCTION__, tone);
+ return -EINVAL;
}
return 0;
}
+static int cx24123_tune(struct dvb_frontend* fe,
+ struct dvb_frontend_parameters* params,
+ unsigned int mode_flags,
+ int *delay,
+ fe_status_t *status)
+{
+ int retval = 0;
+
+ if (params != NULL)
+ retval = cx24123_set_frontend(fe, params);
+
+ if (!(mode_flags & FE_TUNE_MODE_ONESHOT))
+ cx24123_read_status(fe, status);
+ *delay = HZ/10;
+
+ return retval;
+}
+
+static int cx24123_get_algo(struct dvb_frontend *fe)
+{
+ return 1; //FE_ALGO_HW
+}
+
static void cx24123_release(struct dvb_frontend* fe)
{
struct cx24123_state* state = fe->demodulator_priv;
/* setup the state */
state->config = config;
state->i2c = i2c;
- memcpy(&state->ops, &cx24123_ops, sizeof(struct dvb_frontend_ops));
- state->lastber = 0;
- state->snr = 0;
- state->lnbreg = 0;
state->VCAarg = 0;
state->VGAarg = 0;
state->bandselectarg = 0;
}
/* create dvb_frontend */
- state->frontend.ops = &state->ops;
+ memcpy(&state->frontend.ops, &cx24123_ops, sizeof(struct dvb_frontend_ops));
state->frontend.demodulator_priv = state;
return &state->frontend;
.read_ber = cx24123_read_ber,
.read_signal_strength = cx24123_read_signal_strength,
.read_snr = cx24123_read_snr,
- .read_ucblocks = cx24123_read_ucblocks,
.diseqc_send_master_cmd = cx24123_send_diseqc_msg,
.diseqc_send_burst = cx24123_diseqc_send_burst,
.set_tone = cx24123_set_tone,
.set_voltage = cx24123_set_voltage,
+ .tune = cx24123_tune,
+ .get_frontend_algo = cx24123_get_algo,
};
module_param(debug, int, 0644);
git://git.onelab.eu / linux-2.6.git / blobdiff