[media] cx88-dsp: Add some spaces for better code readability
Use space characters at some source code places according to the Linux coding style convention. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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@ -31,7 +31,7 @@
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#define INT_PI ((s32)(3.141592653589 * 32768.0))
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#define compat_remainder(a, b) \
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((float)(((s32)((a)*100))%((s32)((b)*100)))/100.0)
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((float)(((s32)((a) * 100)) % ((s32)((b) * 100))) / 100.0)
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#define baseband_freq(carrier, srate, tone) ((s32)( \
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(compat_remainder(carrier + tone, srate)) / srate * 2 * INT_PI))
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@ -82,15 +82,15 @@ static s32 int_cos(u32 x)
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if (period % 2)
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return -int_cos(x - INT_PI);
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x = x % INT_PI;
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if (x > INT_PI/2)
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return -int_cos(INT_PI/2 - (x % (INT_PI/2)));
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if (x > INT_PI / 2)
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return -int_cos(INT_PI / 2 - (x % (INT_PI / 2)));
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/* Now x is between 0 and INT_PI/2.
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* To calculate cos(x) we use it's Taylor polinom. */
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t2 = x*x/32768/2;
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t4 = t2*x/32768*x/32768/3/4;
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t6 = t4*x/32768*x/32768/5/6;
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t8 = t6*x/32768*x/32768/7/8;
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ret = 32768-t2+t4-t6+t8;
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t2 = x * x / 32768 / 2;
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t4 = t2 * x / 32768 * x / 32768 / 3 / 4;
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t6 = t4 * x / 32768 * x / 32768 / 5 / 6;
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t8 = t6 * x / 32768 * x / 32768 / 7 / 8;
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ret = 32768 - t2 + t4 - t6 + t8;
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return ret;
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}
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@ -100,14 +100,14 @@ static u32 int_goertzel(s16 x[], u32 N, u32 freq)
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* given frequency in the signal */
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s32 s_prev = 0;
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s32 s_prev2 = 0;
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s32 coeff = 2*int_cos(freq);
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s32 coeff = 2 * int_cos(freq);
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u32 i;
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u64 tmp;
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u32 divisor;
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for (i = 0; i < N; i++) {
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s32 s = x[i] + ((s64)coeff*s_prev/32768) - s_prev2;
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s32 s = x[i] + ((s64)coeff * s_prev / 32768) - s_prev2;
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s_prev2 = s_prev;
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s_prev = s;
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}
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@ -138,7 +138,7 @@ static u32 noise_magnitude(s16 x[], u32 N, u32 freq_start, u32 freq_end)
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if (N > 192) {
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/* The last 192 samples are enough for noise detection */
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x += (N-192);
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x += (N - 192);
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N = 192;
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}
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@ -196,8 +196,8 @@ static s32 detect_a2_a2m_eiaj(struct cx88_core *core, s16 x[], u32 N)
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if (core->tvaudio == WW_EIAJ) {
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/* EIAJ checks may need adjustments */
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if ((carrier > max(stereo, dual)*2) &&
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(carrier < max(stereo, dual)*6) &&
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if ((carrier > max(stereo, dual) * 2) &&
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(carrier < max(stereo, dual) * 6) &&
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(carrier > 20 && carrier < 200) &&
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(max(stereo, dual) > min(stereo, dual))) {
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/* For EIAJ the carrier is always present,
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@ -205,11 +205,11 @@ static s32 detect_a2_a2m_eiaj(struct cx88_core *core, s16 x[], u32 N)
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return ret;
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}
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} else {
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if ((carrier > max(stereo, dual)*2) &&
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(carrier < max(stereo, dual)*8) &&
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if ((carrier > max(stereo, dual) * 2) &&
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(carrier < max(stereo, dual) * 8) &&
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(carrier > 20 && carrier < 200) &&
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(noise < 10) &&
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(max(stereo, dual) > min(stereo, dual)*2)) {
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(max(stereo, dual) > min(stereo, dual) * 2)) {
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return ret;
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}
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}
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@ -234,9 +234,9 @@ static s16 *read_rds_samples(struct cx88_core *core, u32 *N)
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s16 *samples;
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unsigned int i;
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unsigned int bpl = srch->fifo_size/AUD_RDS_LINES;
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unsigned int spl = bpl/4;
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unsigned int sample_count = spl*(AUD_RDS_LINES-1);
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unsigned int bpl = srch->fifo_size / AUD_RDS_LINES;
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unsigned int spl = bpl / 4;
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unsigned int sample_count = spl * (AUD_RDS_LINES - 1);
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u32 current_address = cx_read(srch->ptr1_reg);
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u32 offset = (current_address - srch->fifo_start + bpl);
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@ -252,7 +252,7 @@ static s16 *read_rds_samples(struct cx88_core *core, u32 *N)
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*N = sample_count;
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for (i = 0; i < sample_count; i++) {
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offset = offset % (AUD_RDS_LINES*bpl);
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offset = offset % (AUD_RDS_LINES * bpl);
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samples[i] = cx_read(srch->fifo_start + offset);
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offset += 4;
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}
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