diff options
Diffstat (limited to 'drivers/media/video/mt20xx.c')
| -rw-r--r-- | drivers/media/video/mt20xx.c | 671 |
1 files changed, 0 insertions, 671 deletions
diff --git a/drivers/media/video/mt20xx.c b/drivers/media/video/mt20xx.c deleted file mode 100644 index 74fd6a01d4c4..000000000000 --- a/drivers/media/video/mt20xx.c +++ /dev/null @@ -1,671 +0,0 @@ -/* - * i2c tv tuner chip device driver - * controls microtune tuners, mt2032 + mt2050 at the moment. - * - * This "mt20xx" module was split apart from the original "tuner" module. - */ -#include <linux/delay.h> -#include <linux/i2c.h> -#include <linux/videodev.h> -#include "tuner-i2c.h" -#include "mt20xx.h" - -static int debug = 0; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "enable verbose debug messages"); - -#define PREFIX "mt20xx" - -/* ---------------------------------------------------------------------- */ - -static unsigned int optimize_vco = 1; -module_param(optimize_vco, int, 0644); - -static unsigned int tv_antenna = 1; -module_param(tv_antenna, int, 0644); - -static unsigned int radio_antenna = 0; -module_param(radio_antenna, int, 0644); - -/* ---------------------------------------------------------------------- */ - -#define MT2032 0x04 -#define MT2030 0x06 -#define MT2040 0x07 -#define MT2050 0x42 - -static char *microtune_part[] = { - [ MT2030 ] = "MT2030", - [ MT2032 ] = "MT2032", - [ MT2040 ] = "MT2040", - [ MT2050 ] = "MT2050", -}; - -struct microtune_priv { - struct tuner_i2c_props i2c_props; - - unsigned int xogc; - //unsigned int radio_if2; - - u32 frequency; -}; - -static int microtune_release(struct dvb_frontend *fe) -{ - kfree(fe->tuner_priv); - fe->tuner_priv = NULL; - - return 0; -} - -static int microtune_get_frequency(struct dvb_frontend *fe, u32 *frequency) -{ - struct microtune_priv *priv = fe->tuner_priv; - *frequency = priv->frequency; - return 0; -} - -// IsSpurInBand()? -static int mt2032_spurcheck(struct dvb_frontend *fe, - int f1, int f2, int spectrum_from,int spectrum_to) -{ - struct microtune_priv *priv = fe->tuner_priv; - int n1=1,n2,f; - - f1=f1/1000; //scale to kHz to avoid 32bit overflows - f2=f2/1000; - spectrum_from/=1000; - spectrum_to/=1000; - - tuner_dbg("spurcheck f1=%d f2=%d from=%d to=%d\n", - f1,f2,spectrum_from,spectrum_to); - - do { - n2=-n1; - f=n1*(f1-f2); - do { - n2--; - f=f-f2; - tuner_dbg("spurtest n1=%d n2=%d ftest=%d\n",n1,n2,f); - - if( (f>spectrum_from) && (f<spectrum_to)) - tuner_dbg("mt2032 spurcheck triggered: %d\n",n1); - } while ( (f>(f2-spectrum_to)) || (n2>-5)); - n1++; - } while (n1<5); - - return 1; -} - -static int mt2032_compute_freq(struct dvb_frontend *fe, - unsigned int rfin, - unsigned int if1, unsigned int if2, - unsigned int spectrum_from, - unsigned int spectrum_to, - unsigned char *buf, - int *ret_sel, - unsigned int xogc) //all in Hz -{ - struct microtune_priv *priv = fe->tuner_priv; - unsigned int fref,lo1,lo1n,lo1a,s,sel,lo1freq, desired_lo1, - desired_lo2,lo2,lo2n,lo2a,lo2num,lo2freq; - - fref= 5250 *1000; //5.25MHz - desired_lo1=rfin+if1; - - lo1=(2*(desired_lo1/1000)+(fref/1000)) / (2*fref/1000); - lo1n=lo1/8; - lo1a=lo1-(lo1n*8); - - s=rfin/1000/1000+1090; - - if(optimize_vco) { - if(s>1890) sel=0; - else if(s>1720) sel=1; - else if(s>1530) sel=2; - else if(s>1370) sel=3; - else sel=4; // >1090 - } - else { - if(s>1790) sel=0; // <1958 - else if(s>1617) sel=1; - else if(s>1449) sel=2; - else if(s>1291) sel=3; - else sel=4; // >1090 - } - *ret_sel=sel; - - lo1freq=(lo1a+8*lo1n)*fref; - - tuner_dbg("mt2032: rfin=%d lo1=%d lo1n=%d lo1a=%d sel=%d, lo1freq=%d\n", - rfin,lo1,lo1n,lo1a,sel,lo1freq); - - desired_lo2=lo1freq-rfin-if2; - lo2=(desired_lo2)/fref; - lo2n=lo2/8; - lo2a=lo2-(lo2n*8); - lo2num=((desired_lo2/1000)%(fref/1000))* 3780/(fref/1000); //scale to fit in 32bit arith - lo2freq=(lo2a+8*lo2n)*fref + lo2num*(fref/1000)/3780*1000; - - tuner_dbg("mt2032: rfin=%d lo2=%d lo2n=%d lo2a=%d num=%d lo2freq=%d\n", - rfin,lo2,lo2n,lo2a,lo2num,lo2freq); - - if(lo1a<0 || lo1a>7 || lo1n<17 ||lo1n>48 || lo2a<0 ||lo2a >7 ||lo2n<17 || lo2n>30) { - tuner_info("mt2032: frequency parameters out of range: %d %d %d %d\n", - lo1a, lo1n, lo2a,lo2n); - return(-1); - } - - mt2032_spurcheck(fe, lo1freq, desired_lo2, spectrum_from, spectrum_to); - // should recalculate lo1 (one step up/down) - - // set up MT2032 register map for transfer over i2c - buf[0]=lo1n-1; - buf[1]=lo1a | (sel<<4); - buf[2]=0x86; // LOGC - buf[3]=0x0f; //reserved - buf[4]=0x1f; - buf[5]=(lo2n-1) | (lo2a<<5); - if(rfin >400*1000*1000) - buf[6]=0xe4; - else - buf[6]=0xf4; // set PKEN per rev 1.2 - buf[7]=8+xogc; - buf[8]=0xc3; //reserved - buf[9]=0x4e; //reserved - buf[10]=0xec; //reserved - buf[11]=(lo2num&0xff); - buf[12]=(lo2num>>8) |0x80; // Lo2RST - - return 0; -} - -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); -} - - -static int mt2032_set_tv_freq(struct dvb_frontend *fe, - struct analog_parameters *params) -{ - int if2,from,to; - - // signal bandwidth and picture carrier - if (params->std & V4L2_STD_525_60) { - // NTSC - from = 40750*1000; - to = 46750*1000; - if2 = 45750*1000; - } else { - // PAL - from = 32900*1000; - to = 39900*1000; - if2 = 38900*1000; - } - - mt2032_set_if_freq(fe, params->frequency*62500, - 1090*1000*1000, if2, from, to); - - return 0; -} - -static int mt2032_set_radio_freq(struct dvb_frontend *fe, - struct analog_parameters *params) -{ - struct microtune_priv *priv = fe->tuner_priv; - int if2; - - if (params->std & V4L2_STD_525_60) { - tuner_dbg("pinnacle ntsc\n"); - if2 = 41300 * 1000; - } else { - tuner_dbg("pinnacle pal\n"); - if2 = 33300 * 1000; - } - - // per Manual for FM tuning: first if center freq. 1085 MHz - mt2032_set_if_freq(fe, params->frequency * 125 / 2, - 1085*1000*1000,if2,if2,if2); - - return 0; -} - -static int mt2032_set_params(struct dvb_frontend *fe, - struct analog_parameters *params) -{ - struct microtune_priv *priv = fe->tuner_priv; - int ret = -EINVAL; - - switch (params->mode) { - case V4L2_TUNER_RADIO: - ret = mt2032_set_radio_freq(fe, params); - priv->frequency = params->frequency * 125 / 2; - break; - case V4L2_TUNER_ANALOG_TV: - case V4L2_TUNER_DIGITAL_TV: - ret = mt2032_set_tv_freq(fe, params); - priv->frequency = params->frequency * 62500; - break; - } - - return ret; -} - -static struct dvb_tuner_ops mt2032_tuner_ops = { - .set_analog_params = mt2032_set_params, - .release = microtune_release, - .get_frequency = microtune_get_frequency, -}; - -// 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); -} - -static void mt2050_set_antenna(struct dvb_frontend *fe, unsigned char antenna) -{ - struct microtune_priv *priv = fe->tuner_priv; - unsigned char buf[2]; - int ret; - - buf[0] = 6; - buf[1] = antenna ? 0x11 : 0x10; - ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,2); - tuner_dbg("mt2050: enabled antenna connector %d\n", antenna); -} - -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) { - int i; - tuner_dbg("bufs is: "); - for(i=0;i<6;i++) - printk("%x ",buf[i]); - printk("\n"); - } - - 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); -} - -static int mt2050_set_tv_freq(struct dvb_frontend *fe, - struct analog_parameters *params) -{ - unsigned int if2; - - if (params->std & V4L2_STD_525_60) { - // NTSC - if2 = 45750*1000; - } else { - // PAL - if2 = 38900*1000; - } - if (V4L2_TUNER_DIGITAL_TV == params->mode) { - // DVB (pinnacle 300i) - if2 = 36150*1000; - } - mt2050_set_if_freq(fe, params->frequency*62500, if2); - mt2050_set_antenna(fe, tv_antenna); - - return 0; -} - -static int mt2050_set_radio_freq(struct dvb_frontend *fe, - struct analog_parameters *params) -{ - struct microtune_priv *priv = fe->tuner_priv; - int if2; - - if (params->std & V4L2_STD_525_60) { - tuner_dbg("pinnacle ntsc\n"); - if2 = 41300 * 1000; - } else { - tuner_dbg("pinnacle pal\n"); - if2 = 33300 * 1000; - } - - mt2050_set_if_freq(fe, params->frequency * 125 / 2, if2); - mt2050_set_antenna(fe, radio_antenna); - - return 0; -} - -static int mt2050_set_params(struct dvb_frontend *fe, - struct analog_parameters *params) -{ - struct microtune_priv *priv = fe->tuner_priv; - int ret = -EINVAL; - - switch (params->mode) { - case V4L2_TUNER_RADIO: - ret = mt2050_set_radio_freq(fe, params); - priv->frequency = params->frequency * 125 / 2; - break; - case V4L2_TUNER_ANALOG_TV: - case V4L2_TUNER_DIGITAL_TV: - ret = mt2050_set_tv_freq(fe, params); - priv->frequency = params->frequency * 62500; - break; - } - - return ret; -} - -static struct dvb_tuner_ops mt2050_tuner_ops = { - .set_analog_params = mt2050_set_params, - .release = microtune_release, - .get_frequency = microtune_get_frequency, -}; - -static int mt2050_init(struct dvb_frontend *fe) -{ - struct microtune_priv *priv = fe->tuner_priv; - unsigned char buf[2]; - int ret; - - buf[0]=6; - buf[1]=0x10; - ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,2); // power - - buf[0]=0x0f; - buf[1]=0x0f; - ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,2); // m1lo - - buf[0]=0x0d; - ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,1); - tuner_i2c_xfer_recv(&priv->i2c_props,buf,1); - - tuner_dbg("mt2050: sro is %x\n",buf[0]); - - memcpy(&fe->ops.tuner_ops, &mt2050_tuner_ops, sizeof(struct dvb_tuner_ops)); - - return 0; -} - -struct dvb_frontend *microtune_attach(struct dvb_frontend *fe, - struct i2c_adapter* i2c_adap, - u8 i2c_addr) -{ - struct microtune_priv *priv = NULL; - char *name; - unsigned char buf[21]; - int company_code; - - priv = kzalloc(sizeof(struct microtune_priv), GFP_KERNEL); - if (priv == NULL) - return NULL; - fe->tuner_priv = priv; - - priv->i2c_props.addr = i2c_addr; - priv->i2c_props.adap = i2c_adap; - - //priv->radio_if2 = 10700 * 1000; /* 10.7MHz - FM radio */ - - memset(buf,0,sizeof(buf)); - - name = "unknown"; - - tuner_i2c_xfer_send(&priv->i2c_props,buf,1); - tuner_i2c_xfer_recv(&priv->i2c_props,buf,21); - if (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 (buf[0x13] < ARRAY_SIZE(microtune_part) && - NULL != microtune_part[buf[0x13]]) - name = microtune_part[buf[0x13]]; - switch (buf[0x13]) { - case MT2032: - mt2032_init(fe); - break; - case MT2050: - mt2050_init(fe); - break; - default: - tuner_info("microtune %s found, not (yet?) supported, sorry :-/\n", - name); - return NULL; - } - - strlcpy(fe->ops.tuner_ops.info.name, name, - sizeof(fe->ops.tuner_ops.info.name)); - tuner_info("microtune %s found, OK\n",name); - return fe; -} - -EXPORT_SYMBOL_GPL(microtune_attach); - -MODULE_DESCRIPTION("Microtune tuner driver"); -MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer"); -MODULE_LICENSE("GPL"); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * --------------------------------------------------------------------------- - * Local variables: - * c-basic-offset: 8 - * End: - */ |