dvb-frontends/drx39xyj/drxj.c

1108 	static const u8 scale = 15;
1111 	   log2lut[n] = (1<<scale) * 200 * log2( 1.0 + ( (1.0/(1<<INDEXWIDTH)) * n ))
1162 	if ((x & (((u32) (-1)) << (scale + 1))) == 0) {
1163 		for (k = scale; k > 0; k--) {
1164 			if (x & (((u32) 1) << scale))
1169 		for (k = scale; k < 31; k++) {
1170 			if ((x & (((u32) (-1)) << (scale + 1))) == 0)
1176 	   Now x has binary point between bit[scale] and bit[scale-1]
1180 	y = k * ((((u32) 1) << scale) * 200);
1183 	x &= ((((u32) 1) << scale) - 1);
1185 	i = (u8) (x >> (scale - index_width));
1187 	d = x & ((((u32) 1) << (scale - index_width)) - 1);
1190 	    ((d * (log2lut[i + 1] - log2lut[i])) >> (scale - index_width));
1192 	y /= 108853;		/* (log2(10) << scale) */
9492 	p->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
9623 	p->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER;
9624 	p->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
9625 	p->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER;
9626 	p->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
9627 	p->block_error.stat[0].scale = FE_SCALE_COUNTER;
9628 	p->cnr.stat[0].scale = FE_SCALE_DECIBEL;
9654 	p->pre_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
9655 	p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
9656 	p->pre_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
9657 	p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
9658 	p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
9659 	p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
10690 		p->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
10692 		p->strength.stat[0].scale = FE_SCALE_RELATIVE;
10706 			p->pre_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
10707 			p->pre_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
10708 			p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
10709 			p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
10710 			p->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
10711 			p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
10712 			p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
10717 				p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
10719 				p->block_error.stat[0].scale = FE_SCALE_COUNTER;
10721 				p->block_count.stat[0].scale = FE_SCALE_COUNTER;
10729 				p->pre_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
10731 				p->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER;
10733 				p->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER;
10740 				p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
10742 				p->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
10744 				p->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
10750 				p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
10753 				p->cnr.stat[0].scale = FE_SCALE_DECIBEL;
12012 	if (p->pre_bit_error.stat[0].scale == FE_SCALE_NOT_AVAILABLE) {
12034 	if (p->strength.stat[0].scale == FE_SCALE_NOT_AVAILABLE) {
12048 	if (p->cnr.stat[0].scale == FE_SCALE_NOT_AVAILABLE) {
12063 	if (p->block_error.stat[0].scale == FE_SCALE_NOT_AVAILABLE) {
12170 	p->strength.stat[0].scale = FE_SCALE_RELATIVE;
12349 	p->strength.stat[0].scale = FE_SCALE_RELATIVE;
12350 	p->pre_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
12351 	p->pre_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
12352 	p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
12353 	p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
12354 	p->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
12355 	p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
12356 	p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;