V4L/DVB(7767): Move tuners to common/tuners

There were several issues in the past, caused by the hybrid tuner design, since
now, the same tuner can be used by drivers/media/dvb and drivers/media/video.

Kconfig items were rearranged, to split V4L/DVB core from their drivers.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

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 fbcb28233737..000000000000
--- 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:
- */