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path: root/drivers/media/video/mt20xx.c
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Diffstat (limited to 'drivers/media/video/mt20xx.c')
-rw-r--r--drivers/media/video/mt20xx.c670
1 files changed, 0 insertions, 670 deletions
diff --git a/drivers/media/video/mt20xx.c b/drivers/media/video/mt20xx.c
deleted file mode 100644
index fbcb2823373..00000000000
--- a/drivers/media/video/mt20xx.c
+++ /dev/null
@@ -1,670 +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;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "enable verbose debug messages");
-
-/* ---------------------------------------------------------------------- */
-
-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;
-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->i2c_props.name = "mt20xx";
-
- //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:
- */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 13:09:00 +0000