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Fix unused code paths in PHY_ofdm_mod

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For completeness sake, unused CYCLIC_SUFFIX and NONE extension
types were fixed to match CYCLIC_PREFIX memcpy usage.
This commit is contained in:
Bartosz Podrygajlo
2024-12-16 15:37:56 +01:00
parent 5ab9bd95bd
commit 9e6c0c8c78
1 changed files with 6 additions and 21 deletions
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openair1/PHY/MODULATION/ofdm_mod.c
+6 -21
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@@ -170,10 +170,10 @@ void PHY_ofdm_mod(const int *input, /// pointer to complex input
// output ptr is not aligned, needs an extra memcpy // output ptr is not aligned, needs an extra memcpy
c16_t temp[fftsize] __attribute__((aligned(32))); c16_t temp[fftsize] __attribute__((aligned(32)));
idft(idft_size, (int16_t *)&input[i * fftsize], (int16_t *)temp, 1); idft(idft_size, (int16_t *)&input[i * fftsize], (int16_t *)temp, 1);
memcpy((void *)output_ptr, (void *)temp, fftsize << 2); memcpy((void *)output_ptr, (void *)temp, sizeof(temp));
} }
// perform cyclic prefix insertion // perform cyclic prefix insertion
memcpy((void *)&output_ptr[-nb_prefix_samples], (void *)&output_ptr[fftsize - nb_prefix_samples], nb_prefix_samples << 2); memcpy((void *)&output_ptr[-nb_prefix_samples], (void *)&output_ptr[fftsize - nb_prefix_samples], nb_prefix_samples * sizeof(c16_t));
break; break;
} }
@@ -181,17 +181,8 @@ void PHY_ofdm_mod(const int *input, /// pointer to complex input
c16_t temp[fftsize] __attribute__((aligned(32))); c16_t temp[fftsize] __attribute__((aligned(32)));
idft(idft_size, (int16_t *)&input[i * fftsize], (int16_t *)temp, 1); idft(idft_size, (int16_t *)&input[i * fftsize], (int16_t *)temp, 1);
int *output_ptr = &output[(i * fftsize) + (i * nb_prefix_samples)]; int *output_ptr = &output[(i * fftsize) + (i * nb_prefix_samples)];
memcpy(output_ptr, temp, sizeof(temp));
int *temp_ptr = (int *)temp; memcpy(&output_ptr[fftsize], temp, nb_prefix_samples * sizeof(c16_t));
// msg("Doing cyclic suffix method\n");
for (int j = 0; j < fftsize; j++) {
output_ptr[j] = temp_ptr[2 * j];
}
for (int j = 0; j < nb_prefix_samples; j++)
output_ptr[fftsize + j] = output_ptr[j];
break; break;
} }
@@ -202,14 +193,8 @@ void PHY_ofdm_mod(const int *input, /// pointer to complex input
case NONE: { case NONE: {
c16_t temp[fftsize] __attribute__((aligned(32))); c16_t temp[fftsize] __attribute__((aligned(32)));
idft(idft_size, (int16_t *)&input[i * fftsize], (int16_t *)temp, 1); idft(idft_size, (int16_t *)&input[i * fftsize], (int16_t *)temp, 1);
// msg("NO EXTENSION!\n"); int *output_ptr = &output[i * fftsize];
int *output_ptr = &output[fftsize]; memcpy(output_ptr, temp, sizeof(temp));
int *temp_ptr = (int *)temp;
for (int j = 0; j < fftsize; j++) {
output_ptr[j] = temp_ptr[2 * j];
}
break; break;
} }