static void mt2050_set_if_freq(struct dvb_frontend *fe,unsigned int freq, unsigned int if2)
{
struct microtune_priv *priv = fe->tuner_priv;
unsigned int if1=1218*1000*1000;
unsigned int f_lo1,f_lo2,lo1,lo2,f_lo1_modulo,f_lo2_modulo,num1,num2,div1a,div1b,div2a,div2b;
int ret;
unsigned char buf[6];
tuner_dbg("mt2050_set_if_freq freq=%d if1=%d if2=%d\n",
freq,if1,if2);
f_lo1=freq+if1;
f_lo1=(f_lo1/1000000)*1000000;
f_lo2=f_lo1-freq-if2;
f_lo2=(f_lo2/50000)*50000;
lo1=f_lo1/4000000;
lo2=f_lo2/4000000;
f_lo1_modulo= f_lo1-(lo1*4000000);
f_lo2_modulo= f_lo2-(lo2*4000000);
num1=4*f_lo1_modulo/4000000;
num2=4096*(f_lo2_modulo/1000)/4000;
// todo spurchecks
div1a=(lo1/12)-1;
div1b=lo1-(div1a+1)*12;
div2a=(lo2/8)-1;
div2b=lo2-(div2a+1)*8;
if (debug > 1) {
tuner_dbg("lo1 lo2 = %d %d\n", lo1, lo2);
tuner_dbg("num1 num2 div1a div1b div2a div2b= %x %x %x %x %x %x\n",
num1,num2,div1a,div1b,div2a,div2b);
}
buf[0]=1;
buf[1]= 4*div1b + num1;
if(freq<275*1000*1000) buf[1] = buf[1]|0x80;
buf[2]=div1a;
buf[3]=32*div2b + num2/256;
buf[4]=num2-(num2/256)*256;
buf[5]=div2a;
if(num2!=0) buf[5]=buf[5]|0x40;
if (debug > 1)
tuner_dbg("bufs is: %*ph\n", 6, buf);
ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,6);
if (ret!=6)
tuner_warn("i2c i/o error: rc == %d (should be 6)\n",ret);
}
// Initialization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
static int mt2032_init(struct dvb_frontend *fe)
{
struct microtune_priv *priv = fe->tuner_priv;
unsigned char buf[21];
int ret,xogc,xok=0;
// Initialize Registers per spec.
buf[1]=2; // Index to register 2
buf[2]=0xff;
buf[3]=0x0f;
buf[4]=0x1f;
ret=tuner_i2c_xfer_send(&priv->i2c_props,buf+1,4);
buf[5]=6; // Index register 6
buf[6]=0xe4;
buf[7]=0x8f;
buf[8]=0xc3;
buf[9]=0x4e;
buf[10]=0xec;
ret=tuner_i2c_xfer_send(&priv->i2c_props,buf+5,6);
buf[12]=13; // Index register 13
buf[13]=0x32;
ret=tuner_i2c_xfer_send(&priv->i2c_props,buf+12,2);
// Adjust XOGC (register 7), wait for XOK
xogc=7;
do {
tuner_dbg("mt2032: xogc = 0x%02x\n",xogc&0x07);
mdelay(10);
buf[0]=0x0e;
tuner_i2c_xfer_send(&priv->i2c_props,buf,1);
tuner_i2c_xfer_recv(&priv->i2c_props,buf,1);
xok=buf[0]&0x01;
tuner_dbg("mt2032: xok = 0x%02x\n",xok);
if (xok == 1) break;
xogc--;
tuner_dbg("mt2032: xogc = 0x%02x\n",xogc&0x07);
if (xogc == 3) {
xogc=4; // min. 4 per spec
break;
}
buf[0]=0x07;
buf[1]=0x88 + xogc;
ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,2);
if (ret!=2)
tuner_warn("i2c i/o error: rc == %d (should be 2)\n",ret);
} while (xok != 1 );
priv->xogc=xogc;
memcpy(&fe->ops.tuner_ops, &mt2032_tuner_ops, sizeof(struct dvb_tuner_ops));
return(1);
}
// Initalization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
static int mt2032_init(struct i2c_client *c)
{
struct tuner *t = i2c_get_clientdata(c);
unsigned char buf[21];
int ret,xogc,xok=0;
// Initialize Registers per spec.
buf[1]=2; // Index to register 2
buf[2]=0xff;
buf[3]=0x0f;
buf[4]=0x1f;
ret=i2c_master_send(c,buf+1,4);
buf[5]=6; // Index register 6
buf[6]=0xe4;
buf[7]=0x8f;
buf[8]=0xc3;
buf[9]=0x4e;
buf[10]=0xec;
ret=i2c_master_send(c,buf+5,6);
buf[12]=13; // Index register 13
buf[13]=0x32;
ret=i2c_master_send(c,buf+12,2);
// Adjust XOGC (register 7), wait for XOK
xogc=7;
do {
tuner_dbg("mt2032: xogc = 0x%02x\n",xogc&0x07);
mdelay(10);
buf[0]=0x0e;
i2c_master_send(c,buf,1);
i2c_master_recv(c,buf,1);
xok=buf[0]&0x01;
tuner_dbg("mt2032: xok = 0x%02x\n",xok);
if (xok == 1) break;
xogc--;
tuner_dbg("mt2032: xogc = 0x%02x\n",xogc&0x07);
if (xogc == 3) {
xogc=4; // min. 4 per spec
break;
}
buf[0]=0x07;
buf[1]=0x88 + xogc;
ret=i2c_master_send(c,buf,2);
if (ret!=2)
tuner_warn("i2c i/o error: rc == %d (should be 2)\n",ret);
} while (xok != 1 );
t->xogc=xogc;
t->tv_freq = mt2032_set_tv_freq;
t->radio_freq = mt2032_set_radio_freq;
return(1);
}
static int mt2032_check_lo_lock(struct dvb_frontend *fe)
{
struct microtune_priv *priv = fe->tuner_priv;
int try,lock=0;
unsigned char buf[2];
for(try=0;try<10;try++) {
buf[0]=0x0e;
tuner_i2c_xfer_send(&priv->i2c_props,buf,1);
tuner_i2c_xfer_recv(&priv->i2c_props,buf,1);
tuner_dbg("mt2032 Reg.E=0x%02x\n",buf[0]);
lock=buf[0] &0x06;
if (lock==6)
break;
tuner_dbg("mt2032: pll wait 1ms for lock (0x%2x)\n",buf[0]);
udelay(1000);
}
return lock;
}
static int mt2032_optimize_vco(struct dvb_frontend *fe,int sel,int lock)
{
struct microtune_priv *priv = fe->tuner_priv;
unsigned char buf[2];
int tad1;
buf[0]=0x0f;
tuner_i2c_xfer_send(&priv->i2c_props,buf,1);
tuner_i2c_xfer_recv(&priv->i2c_props,buf,1);
tuner_dbg("mt2032 Reg.F=0x%02x\n",buf[0]);
tad1=buf[0]&0x07;
if(tad1 ==0) return lock;
if(tad1 ==1) return lock;
if(tad1==2) {
if(sel==0)
return lock;
else sel--;
}
else {
if(sel<4)
sel++;
else
return lock;
}
tuner_dbg("mt2032 optimize_vco: sel=%d\n",sel);
buf[0]=0x0f;
buf[1]=sel;
tuner_i2c_xfer_send(&priv->i2c_props,buf,2);
lock=mt2032_check_lo_lock(fe);
return lock;
}
static void mt2032_set_if_freq(struct dvb_frontend *fe, unsigned int rfin,
unsigned int if1, unsigned int if2,
unsigned int from, unsigned int to)
{
unsigned char buf[21];
int lint_try,ret,sel,lock=0;
struct microtune_priv *priv = fe->tuner_priv;
tuner_dbg("mt2032_set_if_freq rfin=%d if1=%d if2=%d from=%d to=%d\n",
rfin,if1,if2,from,to);
buf[0]=0;
ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,1);
tuner_i2c_xfer_recv(&priv->i2c_props,buf,21);
buf[0]=0;
ret=mt2032_compute_freq(fe,rfin,if1,if2,from,to,&buf[1],&sel,priv->xogc);
if (ret<0)
return;
// send only the relevant registers per Rev. 1.2
buf[0]=0;
ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,4);
buf[5]=5;
ret=tuner_i2c_xfer_send(&priv->i2c_props,buf+5,4);
buf[11]=11;
ret=tuner_i2c_xfer_send(&priv->i2c_props,buf+11,3);
if(ret!=3)
tuner_warn("i2c i/o error: rc == %d (should be 3)\n",ret);
// wait for PLLs to lock (per manual), retry LINT if not.
for(lint_try=0; lint_try<2; lint_try++) {
lock=mt2032_check_lo_lock(fe);
if(optimize_vco)
lock=mt2032_optimize_vco(fe,sel,lock);
if(lock==6) break;
tuner_dbg("mt2032: re-init PLLs by LINT\n");
buf[0]=7;
buf[1]=0x80 +8+priv->xogc; // set LINT to re-init PLLs
tuner_i2c_xfer_send(&priv->i2c_props,buf,2);
mdelay(10);
buf[1]=8+priv->xogc;
tuner_i2c_xfer_send(&priv->i2c_props,buf,2);
}
if (lock!=6)
tuner_warn("MT2032 Fatal Error: PLLs didn't lock.\n");
buf[0]=2;
buf[1]=0x20; // LOGC for optimal phase noise
ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,2);
if (ret!=2)
tuner_warn("i2c i/o error: rc == %d (should be 2)\n",ret);
}
int microtune_init(struct i2c_client *c)
{
struct tuner *t = i2c_get_clientdata(c);
char *name;
unsigned char buf[21];
int company_code;
memset(buf,0,sizeof(buf));
t->tv_freq = NULL;
t->radio_freq = NULL;
name = "unknown";
i2c_master_send(c,buf,1);
i2c_master_recv(c,buf,21);
if (tuner_debug) {
int i;
tuner_dbg("MT20xx hexdump:");
for(i=0;i<21;i++) {
printk(" %02x",buf[i]);
if(((i+1)%8)==0) printk(" ");
}
printk("\n");
}
company_code = buf[0x11] << 8 | buf[0x12];
tuner_info("microtune: companycode=%04x part=%02x rev=%02x\n",
company_code,buf[0x13],buf[0x14]);
#if 0
/* seems to cause more problems than it solves ... */
switch (company_code) {
case 0x30bf:
case 0x3cbf:
case 0x3dbf:
case 0x4d54:
case 0x8e81:
case 0x8e91:
/* ok (?) */
break;
default:
tuner_warn("tuner: microtune: unknown companycode\n");
return 0;
}
#endif
if (buf[0x13] < ARRAY_SIZE(microtune_part) &&
NULL != microtune_part[buf[0x13]])
name = microtune_part[buf[0x13]];
switch (buf[0x13]) {
case MT2032:
mt2032_init(c);
break;
case MT2050:
mt2050_init(c);
break;
default:
tuner_info("microtune %s found, not (yet?) supported, sorry :-/\n",
name);
return 0;
}
strlcpy(c->name, name, sizeof(c->name));
tuner_info("microtune %s found, OK\n",name);
return 0;
}
static void mt2050_set_if_freq(struct i2c_client *c,unsigned int freq, unsigned int if2)
{
struct tuner *t = i2c_get_clientdata(c);
unsigned int if1=1218*1000*1000;
unsigned int f_lo1,f_lo2,lo1,lo2,f_lo1_modulo,f_lo2_modulo,num1,num2,div1a,div1b,div2a,div2b;
int ret;
unsigned char buf[6];
tuner_dbg("mt2050_set_if_freq freq=%d if1=%d if2=%d\n",
freq,if1,if2);
f_lo1=freq+if1;
f_lo1=(f_lo1/1000000)*1000000;
f_lo2=f_lo1-freq-if2;
f_lo2=(f_lo2/50000)*50000;
lo1=f_lo1/4000000;
lo2=f_lo2/4000000;
f_lo1_modulo= f_lo1-(lo1*4000000);
f_lo2_modulo= f_lo2-(lo2*4000000);
num1=4*f_lo1_modulo/4000000;
num2=4096*(f_lo2_modulo/1000)/4000;
// todo spurchecks
div1a=(lo1/12)-1;
div1b=lo1-(div1a+1)*12;
div2a=(lo2/8)-1;
div2b=lo2-(div2a+1)*8;
if (tuner_debug > 1) {
tuner_dbg("lo1 lo2 = %d %d\n", lo1, lo2);
tuner_dbg("num1 num2 div1a div1b div2a div2b= %x %x %x %x %x %x\n",
num1,num2,div1a,div1b,div2a,div2b);
}
buf[0]=1;
buf[1]= 4*div1b + num1;
if(freq<275*1000*1000) buf[1] = buf[1]|0x80;
buf[2]=div1a;
buf[3]=32*div2b + num2/256;
buf[4]=num2-(num2/256)*256;
buf[5]=div2a;
if(num2!=0) buf[5]=buf[5]|0x40;
if (tuner_debug > 1) {
int i;
tuner_dbg("bufs is: ");
for(i=0;i<6;i++)
printk("%x ",buf[i]);
printk("\n");
}
ret=i2c_master_send(c,buf,6);
if (ret!=6)
tuner_warn("i2c i/o error: rc == %d (should be 6)\n",ret);
}
static void tda8290_init_tuner(struct dvb_frontend *fe)
{
struct tda8290_priv *priv = fe->analog_demod_priv;
unsigned char tda8275_init[] = { 0x00, 0x00, 0x00, 0x40, 0xdC, 0x04, 0xAf,
0x3F, 0x2A, 0x04, 0xFF, 0x00, 0x00, 0x40 };
unsigned char tda8275a_init[] = { 0x00, 0x00, 0x00, 0x00, 0xdC, 0x05, 0x8b,
0x0c, 0x04, 0x20, 0xFF, 0x00, 0x00, 0x4b };
struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0,
.buf=tda8275_init, .len = 14};
if (priv->ver & TDA8275A)
msg.buf = tda8275a_init;
tda8290_i2c_bridge(fe, 1);
i2c_transfer(priv->i2c_props.adap, &msg, 1);
tda8290_i2c_bridge(fe, 0);
}
/*---------------------------------------------------------------------*/
static void tda829x_release(struct dvb_frontend *fe)
{
struct tda8290_priv *priv = fe->analog_demod_priv;
/* only try to release the tuner if we've
* attached it from within this module */
if (priv->ver & (TDA18271 | TDA8275 | TDA8275A))
if (fe->ops.tuner_ops.release)
fe->ops.tuner_ops.release(fe);
kfree(fe->analog_demod_priv);
fe->analog_demod_priv = NULL;
}
static struct tda18271_config tda829x_tda18271_config = {
.gate = TDA18271_GATE_ANALOG,
};
static int tda829x_find_tuner(struct dvb_frontend *fe)
{
struct tda8290_priv *priv = fe->analog_demod_priv;
struct analog_demod_ops *analog_ops = &fe->ops.analog_ops;
int i, ret, tuners_found;
u32 tuner_addrs;
u8 data;
struct i2c_msg msg = { .flags = I2C_M_RD, .buf = &data, .len = 1 };
if (!analog_ops->i2c_gate_ctrl) {
printk(KERN_ERR "tda8290: no gate control were provided!\n");
return -EINVAL;
}
analog_ops->i2c_gate_ctrl(fe, 1);
/* probe for tuner chip */
tuners_found = 0;
tuner_addrs = 0;
for (i = 0x60; i <= 0x63; i++) {
msg.addr = i;
ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
if (ret == 1) {
tuners_found++;
tuner_addrs = (tuner_addrs << 8) + i;
}
}
/* if there is more than one tuner, we expect the right one is
behind the bridge and we choose the highest address that doesn't
give a response now
*/
analog_ops->i2c_gate_ctrl(fe, 0);
if (tuners_found > 1)
for (i = 0; i < tuners_found; i++) {
msg.addr = tuner_addrs & 0xff;
ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
if (ret == 1)
tuner_addrs = tuner_addrs >> 8;
else
break;
}
if (tuner_addrs == 0) {
tuner_addrs = 0x60;
tuner_info("could not clearly identify tuner address, "
"defaulting to %x\n", tuner_addrs);
} else {
tuner_addrs = tuner_addrs & 0xff;
tuner_info("setting tuner address to %x\n", tuner_addrs);
}
priv->tda827x_addr = tuner_addrs;
msg.addr = tuner_addrs;
analog_ops->i2c_gate_ctrl(fe, 1);
ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
if (ret != 1) {
tuner_warn("tuner access failed!\n");
analog_ops->i2c_gate_ctrl(fe, 0);
return -EREMOTEIO;
}
if ((data == 0x83) || (data == 0x84)) {
priv->ver |= TDA18271;
tda829x_tda18271_config.config = priv->cfg.config;
dvb_attach(tda18271_attach, fe, priv->tda827x_addr,
priv->i2c_props.adap, &tda829x_tda18271_config);
} else {
if ((data & 0x3c) == 0)
priv->ver |= TDA8275;
else
priv->ver |= TDA8275A;
dvb_attach(tda827x_attach, fe, priv->tda827x_addr,
priv->i2c_props.adap, &priv->cfg);
priv->cfg.switch_addr = priv->i2c_props.addr;
}
if (fe->ops.tuner_ops.init)
fe->ops.tuner_ops.init(fe);
if (fe->ops.tuner_ops.sleep)
fe->ops.tuner_ops.sleep(fe);
analog_ops->i2c_gate_ctrl(fe, 0);
return 0;
}
static int tda8290_probe(struct tuner_i2c_props *i2c_props)
{
#define TDA8290_ID 0x89
unsigned char tda8290_id[] = { 0x1f, 0x00 };
/* detect tda8290 */
tuner_i2c_xfer_send(i2c_props, &tda8290_id[0], 1);
tuner_i2c_xfer_recv(i2c_props, &tda8290_id[1], 1);
if (tda8290_id[1] == TDA8290_ID) {
if (debug)
printk(KERN_DEBUG "%s: tda8290 detected @ %d-%04x\n",
__func__, i2c_adapter_id(i2c_props->adap),
i2c_props->addr);
return 0;
}
return -ENODEV;
}