/*
- Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver
-
- Copyright (C) 2005 Steven Toth <stoth@hauppauge.com>
-
- Support for KWorld DVB-S 100 by Vadim Catana <skystar@moldova.cc>
-
- 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.
-*/
+ * Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver
+ *
+ * Copyright (C) 2005 Steven Toth <stoth@hauppauge.com>
+ *
+ * Support for KWorld DVB-S 100 by Vadim Catana <skystar@moldova.cc>
+ *
+ * Support for CX24123/CX24113-NIM by Patrick Boettcher <pb@linuxtv.org>
+ *
+ * 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>
static int force_band;
static int debug;
+
+#define info(args...) do { printk(KERN_INFO "CX24123: " args); } while (0)
+#define err(args...) do { printk(KERN_ERR "CX24123: " args); } while (0)
+
#define dprintk(args...) \
do { \
- if (debug) printk (KERN_DEBUG "cx24123: " args); \
+ if (debug) { \
+ printk(KERN_DEBUG "CX24123: %s: ", __func__); \
+ printk(args); \
+ } \
} while (0)
struct cx24123_state
u32 pllarg;
u32 FILTune;
+ struct i2c_adapter tuner_i2c_adapter;
+
+ u8 demod_rev;
+
/* The Demod/Tuner can't easily provide these, we cache them */
u32 currentfreq;
u32 currentsymbolrate;
{0x67, 0x83}, /* Non-DCII symbol clock */
};
-static int cx24123_writereg(struct cx24123_state* state, int reg, int data)
+static int cx24123_i2c_writereg(struct cx24123_state *state,
+ u8 i2c_addr, int reg, int data)
{
u8 buf[] = { reg, data };
- struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
+ struct i2c_msg msg = {
+ .addr = i2c_addr, .flags = 0, .buf = buf, .len = 2
+ };
int err;
- if (debug>1)
- printk("cx24123: %s: write reg 0x%02x, value 0x%02x\n",
- __FUNCTION__,reg, data);
+ /* printk(KERN_DEBUG "wr(%02x): %02x %02x\n", i2c_addr, reg, data); */
if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
printk("%s: writereg error(err == %i, reg == 0x%02x,"
- " data == 0x%02x)\n", __FUNCTION__, err, reg, data);
- return -EREMOTEIO;
+ " data == 0x%02x)\n", __func__, err, reg, data);
+ return err;
}
return 0;
}
-static int cx24123_readreg(struct cx24123_state* state, u8 reg)
+static int cx24123_i2c_readreg(struct cx24123_state *state, u8 i2c_addr, u8 reg)
{
int ret;
- u8 b0[] = { reg };
- u8 b1[] = { 0 };
+ u8 b = 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 }
+ { .addr = i2c_addr, .flags = 0, .buf = ®, .len = 1 },
+ { .addr = i2c_addr, .flags = I2C_M_RD, .buf = &b, .len = 1 }
};
ret = i2c_transfer(state->i2c, msg, 2);
if (ret != 2) {
- printk("%s: reg=0x%x (error=%d)\n", __FUNCTION__, reg, ret);
+ err("%s: reg=0x%x (error=%d)\n", __func__, reg, ret);
return ret;
}
- if (debug>1)
- printk("cx24123: read reg 0x%02x, value 0x%02x\n",reg, ret);
+ /* printk(KERN_DEBUG "rd(%02x): %02x %02x\n", i2c_addr, reg, b); */
- return b1[0];
+ return b;
}
+#define cx24123_readreg(state, reg) \
+ cx24123_i2c_readreg(state, state->config->demod_address, reg)
+#define cx24123_writereg(state, reg, val) \
+ cx24123_i2c_writereg(state, state->config->demod_address, reg, val)
+
static int cx24123_set_inversion(struct cx24123_state* state, fe_spectral_inversion_t inversion)
{
u8 nom_reg = cx24123_readreg(state, 0x0e);
switch (inversion) {
case INVERSION_OFF:
- dprintk("%s: inversion off\n",__FUNCTION__);
+ dprintk("inversion off\n");
cx24123_writereg(state, 0x0e, nom_reg & ~0x80);
cx24123_writereg(state, 0x10, auto_reg | 0x80);
break;
case INVERSION_ON:
- dprintk("%s: inversion on\n",__FUNCTION__);
+ dprintk("inversion on\n");
cx24123_writereg(state, 0x0e, nom_reg | 0x80);
cx24123_writereg(state, 0x10, auto_reg | 0x80);
break;
case INVERSION_AUTO:
- dprintk("%s: inversion auto\n",__FUNCTION__);
+ dprintk("inversion auto\n");
cx24123_writereg(state, 0x10, auto_reg & ~0x80);
break;
default:
val = cx24123_readreg(state, 0x1b) >> 7;
if (val == 0) {
- dprintk("%s: read inversion off\n",__FUNCTION__);
+ dprintk("read inversion off\n");
*inversion = INVERSION_OFF;
} else {
- dprintk("%s: read inversion on\n",__FUNCTION__);
+ dprintk("read inversion on\n");
*inversion = INVERSION_ON;
}
switch (fec) {
case FEC_1_2:
- dprintk("%s: set FEC to 1/2\n",__FUNCTION__);
+ dprintk("set FEC to 1/2\n");
cx24123_writereg(state, 0x0e, nom_reg | 0x01);
cx24123_writereg(state, 0x0f, 0x02);
break;
case FEC_2_3:
- dprintk("%s: set FEC to 2/3\n",__FUNCTION__);
+ dprintk("set FEC to 2/3\n");
cx24123_writereg(state, 0x0e, nom_reg | 0x02);
cx24123_writereg(state, 0x0f, 0x04);
break;
case FEC_3_4:
- dprintk("%s: set FEC to 3/4\n",__FUNCTION__);
+ dprintk("set FEC to 3/4\n");
cx24123_writereg(state, 0x0e, nom_reg | 0x03);
cx24123_writereg(state, 0x0f, 0x08);
break;
case FEC_4_5:
- dprintk("%s: set FEC to 4/5\n",__FUNCTION__);
+ dprintk("set FEC to 4/5\n");
cx24123_writereg(state, 0x0e, nom_reg | 0x04);
cx24123_writereg(state, 0x0f, 0x10);
break;
case FEC_5_6:
- dprintk("%s: set FEC to 5/6\n",__FUNCTION__);
+ dprintk("set FEC to 5/6\n");
cx24123_writereg(state, 0x0e, nom_reg | 0x05);
cx24123_writereg(state, 0x0f, 0x20);
break;
case FEC_6_7:
- dprintk("%s: set FEC to 6/7\n",__FUNCTION__);
+ dprintk("set FEC to 6/7\n");
cx24123_writereg(state, 0x0e, nom_reg | 0x06);
cx24123_writereg(state, 0x0f, 0x40);
break;
case FEC_7_8:
- dprintk("%s: set FEC to 7/8\n",__FUNCTION__);
+ dprintk("set FEC to 7/8\n");
cx24123_writereg(state, 0x0e, nom_reg | 0x07);
cx24123_writereg(state, 0x0f, 0x80);
break;
case FEC_AUTO:
- dprintk("%s: set FEC to auto\n",__FUNCTION__);
+ dprintk("set FEC to auto\n");
cx24123_writereg(state, 0x0f, 0xfe);
break;
default:
tmp = cx24123_readreg(state, 0x0c) & ~0xe0;
cx24123_writereg(state, 0x0c, tmp | sample_gain << 5);
- dprintk("%s: srate=%d, ratio=0x%08x, sample_rate=%i sample_gain=%d\n", __FUNCTION__, srate, ratio, sample_rate, sample_gain);
+ dprintk("srate=%d, ratio=0x%08x, sample_rate=%i sample_gain=%d\n",
+ srate, ratio, sample_rate, sample_gain);
return 0;
}
struct cx24123_state *state = fe->demodulator_priv;
unsigned long timeout;
- dprintk("%s: pll writereg called, data=0x%08x\n",__FUNCTION__,data);
+ dprintk("pll writereg called, data=0x%08x\n", data);
/* align the 21 bytes into to bit23 boundary */
data = data << 3;
cx24123_writereg(state, 0x22, (data >> 16) & 0xff);
while ((cx24123_readreg(state, 0x20) & 0x40) == 0) {
if (time_after(jiffies, timeout)) {
- printk("%s: demodulator is not responding, possibly hung, aborting.\n", __FUNCTION__);
+ err("%s: demodulator is not responding, "\
+ "possibly hung, aborting.\n", __func__);
return -EREMOTEIO;
}
msleep(10);
cx24123_writereg(state, 0x22, (data>>8) & 0xff );
while ((cx24123_readreg(state, 0x20) & 0x40) == 0) {
if (time_after(jiffies, timeout)) {
- printk("%s: demodulator is not responding, possibly hung, aborting.\n", __FUNCTION__);
+ err("%s: demodulator is not responding, "\
+ "possibly hung, aborting.\n", __func__);
return -EREMOTEIO;
}
msleep(10);
cx24123_writereg(state, 0x22, (data) & 0xff );
while ((cx24123_readreg(state, 0x20) & 0x80)) {
if (time_after(jiffies, timeout)) {
- printk("%s: demodulator is not responding, possibly hung, aborting.\n", __FUNCTION__);
+ err("%s: demodulator is not responding," \
+ "possibly hung, aborting.\n", __func__);
return -EREMOTEIO;
}
msleep(10);
dprintk("frequency=%i\n", p->frequency);
if (cx24123_pll_calculate(fe, p) != 0) {
- printk("%s: cx24123_pll_calcutate failed\n",__FUNCTION__);
+ err("%s: cx24123_pll_calcutate failed\n", __func__);
return -EINVAL;
}
cx24123_writereg(state, 0x27, state->FILTune >> 2);
cx24123_writereg(state, 0x28, val | (state->FILTune & 0x3));
- dprintk("%s: pll tune VCA=%d, band=%d, pll=%d\n",__FUNCTION__,state->VCAarg,
- state->bandselectarg,state->pllarg);
+ dprintk("pll tune VCA=%d, band=%d, pll=%d\n", state->VCAarg,
+ state->bandselectarg, state->pllarg);
return 0;
}
+
+/*
+ * 0x23:
+ * [7:7] = BTI enabled
+ * [6:6] = I2C repeater enabled
+ * [5:5] = I2C repeater start
+ * [0:0] = BTI start
+ */
+
+/* mode == 1 -> i2c-repeater, 0 -> bti */
+static int cx24123_repeater_mode(struct cx24123_state *state, u8 mode, u8 start)
+{
+ u8 r = cx24123_readreg(state, 0x23) & 0x1e;
+ if (mode)
+ r |= (1 << 6) | (start << 5);
+ else
+ r |= (1 << 7) | (start);
+ return cx24123_writereg(state, 0x23, r);
+}
+
static int cx24123_initfe(struct dvb_frontend* fe)
{
struct cx24123_state *state = fe->demodulator_priv;
int i;
- dprintk("%s: init frontend\n",__FUNCTION__);
+ dprintk("init frontend\n");
/* Configure the demod to a good set of defaults */
for (i = 0; i < ARRAY_SIZE(cx24123_regdata); i++)
if(state->config->lnb_polarity)
cx24123_writereg(state, 0x32, cx24123_readreg(state, 0x32) | 0x02);
+ if (state->config->dont_use_pll)
+ cx24123_repeater_mode(state, 1, 0);
+
return 0;
}
switch (voltage) {
case SEC_VOLTAGE_13:
- dprintk("%s: setting voltage 13V\n", __FUNCTION__);
+ dprintk("setting voltage 13V\n");
return cx24123_writereg(state, 0x29, val & 0x7f);
case SEC_VOLTAGE_18:
- dprintk("%s: setting voltage 18V\n", __FUNCTION__);
+ dprintk("setting voltage 18V\n");
return cx24123_writereg(state, 0x29, val | 0x80);
case SEC_VOLTAGE_OFF:
/* already handled in cx88-dvb */
unsigned long timeout = jiffies + msecs_to_jiffies(200);
while (!(cx24123_readreg(state, 0x29) & 0x40)) {
if(time_after(jiffies, timeout)) {
- printk("%s: diseqc queue not ready, command may be lost.\n", __FUNCTION__);
+ err("%s: diseqc queue not ready, " \
+ "command may be lost.\n", __func__);
break;
}
msleep(10);
struct cx24123_state *state = fe->demodulator_priv;
int i, val, tone;
- dprintk("%s:\n",__FUNCTION__);
+ dprintk("\n");
/* stop continuous tone if enabled */
tone = cx24123_readreg(state, 0x29);
struct cx24123_state *state = fe->demodulator_priv;
int val, tone;
- dprintk("%s:\n", __FUNCTION__);
+ dprintk("\n");
/* stop continuous tone if enabled */
tone = cx24123_readreg(state, 0x29);
static int cx24123_read_status(struct dvb_frontend* fe, fe_status_t* status)
{
struct cx24123_state *state = fe->demodulator_priv;
-
int sync = cx24123_readreg(state, 0x14);
- int lock = cx24123_readreg(state, 0x20);
*status = 0;
- if (lock & 0x01)
- *status |= FE_HAS_SIGNAL;
+ if (state->config->dont_use_pll) {
+ u32 tun_status = 0;
+ if (fe->ops.tuner_ops.get_status)
+ fe->ops.tuner_ops.get_status(fe, &tun_status);
+ if (tun_status & TUNER_STATUS_LOCKED)
+ *status |= FE_HAS_SIGNAL;
+ } else {
+ int lock = cx24123_readreg(state, 0x20);
+ if (lock & 0x01)
+ *status |= FE_HAS_SIGNAL;
+ }
+
if (sync & 0x02)
*status |= FE_HAS_CARRIER; /* Phase locked */
if (sync & 0x04)
* Configured to return the measurement of errors in blocks, because no UCBLOCKS value
* is available, so this value doubles up to satisfy both measurements
*/
-static int cx24123_read_ber(struct dvb_frontend* fe, u32* ber)
+static int cx24123_read_ber(struct dvb_frontend *fe, u32 *ber)
{
struct cx24123_state *state = fe->demodulator_priv;
(cx24123_readreg(state, 0x1d) << 8 |
cx24123_readreg(state, 0x1e));
- dprintk("%s: BER = %d\n",__FUNCTION__,*ber);
+ dprintk("BER = %d\n", *ber);
return 0;
}
-static int cx24123_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
+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);
+ dprintk("Signal strength = %d\n", *signal_strength);
return 0;
}
-static int cx24123_read_snr(struct dvb_frontend* fe, u16* snr)
+static int cx24123_read_snr(struct dvb_frontend *fe, u16 *snr)
{
struct cx24123_state *state = fe->demodulator_priv;
*snr = 65535 - (((u16)cx24123_readreg(state, 0x18) << 8) |
(u16)cx24123_readreg(state, 0x19));
- dprintk("%s: read S/N index = %d\n",__FUNCTION__,*snr);
+ dprintk("read S/N index = %d\n", *snr);
return 0;
}
-static int cx24123_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
+static int cx24123_set_frontend(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *p)
{
struct cx24123_state *state = fe->demodulator_priv;
- dprintk("%s: set_frontend\n",__FUNCTION__);
+ dprintk("\n");
if (state->config->set_ts_params)
state->config->set_ts_params(fe, 0);
cx24123_set_inversion(state, p->inversion);
cx24123_set_fec(state, p->u.qpsk.fec_inner);
cx24123_set_symbolrate(state, p->u.qpsk.symbol_rate);
- cx24123_pll_tune(fe, p);
+
+ if (!state->config->dont_use_pll)
+ cx24123_pll_tune(fe, p);
+ else if (fe->ops.tuner_ops.set_params)
+ fe->ops.tuner_ops.set_params(fe, p);
+ else
+ err("it seems I don't have a tuner...");
/* Enable automatic aquisition and reset cycle */
cx24123_writereg(state, 0x03, (cx24123_readreg(state, 0x03) | 0x07));
cx24123_writereg(state, 0x00, 0x10);
cx24123_writereg(state, 0x00, 0);
+ if (state->config->agc_callback)
+ state->config->agc_callback(fe);
+
return 0;
}
{
struct cx24123_state *state = fe->demodulator_priv;
- dprintk("%s: get_frontend\n",__FUNCTION__);
+ dprintk("\n");
if (cx24123_get_inversion(state, &p->inversion) != 0) {
- printk("%s: Failed to get inversion status\n",__FUNCTION__);
+ err("%s: Failed to get inversion status\n", __func__);
return -EREMOTEIO;
}
if (cx24123_get_fec(state, &p->u.qpsk.fec_inner) != 0) {
- printk("%s: Failed to get fec status\n",__FUNCTION__);
+ err("%s: Failed to get fec status\n", __func__);
return -EREMOTEIO;
}
p->frequency = state->currentfreq;
switch (tone) {
case SEC_TONE_ON:
- dprintk("%s: setting tone on\n", __FUNCTION__);
+ dprintk("setting tone on\n");
return cx24123_writereg(state, 0x29, val | 0x10);
case SEC_TONE_OFF:
- dprintk("%s: setting tone off\n",__FUNCTION__);
+ dprintk("setting tone off\n");
return cx24123_writereg(state, 0x29, val & 0xef);
default:
- printk("%s: CASE reached default with tone=%d\n", __FUNCTION__, tone);
+ err("CASE reached default with tone=%d\n", tone);
return -EINVAL;
}
static void cx24123_release(struct dvb_frontend* fe)
{
struct cx24123_state* state = fe->demodulator_priv;
- dprintk("%s\n",__FUNCTION__);
+ dprintk("\n");
+ i2c_del_adapter(&state->tuner_i2c_adapter);
kfree(state);
}
+static int cx24123_tuner_i2c_tuner_xfer(struct i2c_adapter *i2c_adap,
+ struct i2c_msg msg[], int num)
+{
+ struct cx24123_state *state = i2c_get_adapdata(i2c_adap);
+ /* this repeater closes after the first stop */
+ cx24123_repeater_mode(state, 1, 1);
+ return i2c_transfer(state->i2c, msg, num);
+}
+
+static u32 cx24123_tuner_i2c_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm cx24123_tuner_i2c_algo = {
+ .master_xfer = cx24123_tuner_i2c_tuner_xfer,
+ .functionality = cx24123_tuner_i2c_func,
+};
+
+struct i2c_adapter *
+ cx24123_get_tuner_i2c_adapter(struct dvb_frontend *fe)
+{
+ struct cx24123_state *state = fe->demodulator_priv;
+ return &state->tuner_i2c_adapter;
+}
+EXPORT_SYMBOL(cx24123_get_tuner_i2c_adapter);
+
static struct dvb_frontend_ops cx24123_ops;
struct dvb_frontend* cx24123_attach(const struct cx24123_config* config,
struct i2c_adapter* i2c)
{
- struct cx24123_state* state = NULL;
- int ret;
-
- dprintk("%s\n",__FUNCTION__);
+ struct cx24123_state *state =
+ kzalloc(sizeof(struct cx24123_state), GFP_KERNEL);
+ dprintk("\n");
/* allocate memory for the internal state */
- state = kmalloc(sizeof(struct cx24123_state), GFP_KERNEL);
if (state == NULL) {
- printk("Unable to kmalloc\n");
+ err("Unable to kmalloc\n");
goto error;
}
/* setup the state */
state->config = config;
state->i2c = i2c;
- state->VCAarg = 0;
- state->VGAarg = 0;
- state->bandselectarg = 0;
- state->pllarg = 0;
- state->currentfreq = 0;
- state->currentsymbolrate = 0;
/* check if the demod is there */
- ret = cx24123_readreg(state, 0x00);
- if ((ret != 0xd1) && (ret != 0xe1)) {
- printk("Version != d1 or e1\n");
+ state->demod_rev = cx24123_readreg(state, 0x00);
+ switch (state->demod_rev) {
+ case 0xe1: info("detected CX24123C\n"); break;
+ case 0xd1: info("detected CX24123\n"); break;
+ default:
+ err("wrong demod revision: %x\n", state->demod_rev);
goto error;
}
/* create dvb_frontend */
memcpy(&state->frontend.ops, &cx24123_ops, sizeof(struct dvb_frontend_ops));
state->frontend.demodulator_priv = state;
+
+ /* create tuner i2c adapter */
+ if (config->dont_use_pll)
+ cx24123_repeater_mode(state, 1, 0);
+
+ strncpy(state->tuner_i2c_adapter.name,
+ "CX24123 tuner I2C bus", I2C_NAME_SIZE);
+ state->tuner_i2c_adapter.class = I2C_CLASS_TV_DIGITAL,
+ state->tuner_i2c_adapter.algo = &cx24123_tuner_i2c_algo;
+ state->tuner_i2c_adapter.algo_data = NULL;
+ i2c_set_adapdata(&state->tuner_i2c_adapter, state);
+ if (i2c_add_adapter(&state->tuner_i2c_adapter) < 0) {
+ err("tuner i2c bus could not be initialized\n");
+ goto error;
+ }
+
return &state->frontend;
error:
module_param(force_band, int, 0644);
MODULE_PARM_DESC(force_band, "Force a specific band select (1-9, default:off).");
-MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24123/cx24109 hardware");
+MODULE_DESCRIPTION("DVB Frontend module for Conexant " \
+ "CX24123/CX24109/CX24113 hardware");
MODULE_AUTHOR("Steven Toth");
MODULE_LICENSE("GPL");
projects / linux-2.6 / commitdiff