Searched refs:intlog10 (Results 1 - 19 of 19) sorted by relevance

/linux-4.4.14/drivers/media/dvb-core/
H A Ddvb_math.h46 * intlog10 - computes log10 of a value; the result is shifted left by 24 bits
51 * intlog10(value) = intlog10(value * 10^x) - x * 2^24
54 * intlog10(1000) will give 3 << 24 = 3 * 2^24
55 * due to the implementation intlog10(1000) might be not exactly 3 * 2^24
61 extern unsigned int intlog10(u32 value);
H A Ddvb_math.c123 unsigned int intlog10(u32 value) intlog10() function
145 EXPORT_SYMBOL(intlog10); variable
/linux-4.4.14/drivers/media/dvb-frontends/
H A Dor51211.c277 SNR * 2^24 = 10*(c - 2*intlog10(MSE))
285 mse = 2*intlog10(mse); calculate_snr()
H A Dcxd2820r_t.c331 *snr = (intlog10(tmp) - CXD2820R_LOG10_8_24) / ((1 << 24) cxd2820r_read_snr_t()
H A Dcxd2820r_t2.c382 *snr = (intlog10(tmp) - CXD2820R_LOG10_8_24) / ((1 << 24) cxd2820r_read_snr_t2()
H A Ddib7000p.c1629 result = intlog10(2) * 10 * signal_exp + 10 * intlog10(signal_mant); dib7000p_get_snr()
1631 result = intlog10(2) * 10 * signal_exp - 100; dib7000p_get_snr()
1634 result -= intlog10(2) * 10 * noise_exp + 10 * intlog10(noise_mant); dib7000p_get_snr()
1636 result -= intlog10(2) * 10 * noise_exp - 100; dib7000p_get_snr()
H A Dlgdt330x.c588 SNR * 2^24 = 10*(c - intlog10(MSE))
596 mse = intlog10(mse); calculate_snr()
H A Dor51132.c456 SNR * 2^24 = 10*(c - 2*intlog10(MSE))
465 mse = 2*intlog10(mse); calculate_snr()
H A Dtc90522.c436 p = intlog10(5505024) - intlog10(cndat); tc90522t_get_frontend()
H A Dcxd2841er.c1364 *snr = 10000 * ((intlog10(reg) - intlog10(5350 - reg)) >> 24) + 28500; cxd2841er_read_snr_t()
1389 *snr = 10000 * ((intlog10(reg) - cxd2841er_read_snr_t2()
1390 intlog10(12600 - reg)) >> 24) + 32000; cxd2841er_read_snr_t2()
H A Dhd29l2.c271 *snr = (LOG10_20736_24 - intlog10(tmp)) / ((1 << 24) / 100); hd29l2_read_snr()
H A Drtl2830.c569 intlog10(u16tmp)) / ((1 << 24) / 10000); rtl2830_stat_work()
H A Dlgdt3305.c987 mse = intlog10(mse); calculate_snr()
H A Dm88ds3103.c190 cnr = div_u64((u64) 10000 * intlog10(itmp), (1 << 24)); m88ds3103_read_status()
H A Drtl2832.c805 intlog10(u16tmp)) / ((1 << 24) / 10000); rtl2832_stat_work()
H A Ddib9000.c2330 snr_master = 10 * intlog10(snr_master >> 16); dib9000_read_snr()
H A Ddib8000.c3873 snr_master = 10*intlog10(snr_master>>16); dib8000_read_snr()
4139 snr = 10 * intlog10(snr); dib8000_get_stats()
H A Ddrxk_hard.c211 return (100L * intlog10(value)) >> 24; log10times100()
/linux-4.4.14/drivers/media/pci/pt1/
H A Dva1j5jf8007t.c85 x = 10 * (intlog10(0x540000 * 100 / word) - (2 << 24)); va1j5jf8007t_read_snr()

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