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Staging: echo: remove dead code
This patch removes dead code that is wrapped in #ifndef __KERNEL__. Cc: David Rowe <david@rowetel.com> Cc: Steve Underwood <steveu@coppice.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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1 changed files with 0 additions and 45 deletions
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@ -312,51 +312,6 @@ static __inline__ int16_t fir32(fir32_state_t *fir, int16_t sample)
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}
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/*- End of function --------------------------------------------------------*/
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#ifndef __KERNEL__
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static __inline__ const float *fir_float_create(fir_float_state_t *fir,
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const float *coeffs,
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int taps)
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{
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fir->taps = taps;
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fir->curr_pos = taps - 1;
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fir->coeffs = coeffs;
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fir->history = (float *) malloc(taps*sizeof(float));
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if (fir->history)
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memset(fir->history, '\0', taps*sizeof(float));
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return fir->history;
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}
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/*- End of function --------------------------------------------------------*/
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static __inline__ void fir_float_free(fir_float_state_t *fir)
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{
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free(fir->history);
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}
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/*- End of function --------------------------------------------------------*/
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static __inline__ int16_t fir_float(fir_float_state_t *fir, int16_t sample)
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{
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int i;
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float y;
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int offset1;
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int offset2;
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fir->history[fir->curr_pos] = sample;
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offset2 = fir->curr_pos;
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offset1 = fir->taps - offset2;
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y = 0;
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for (i = fir->taps - 1; i >= offset1; i--)
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y += fir->coeffs[i]*fir->history[i - offset1];
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for ( ; i >= 0; i--)
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y += fir->coeffs[i]*fir->history[i + offset2];
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if (fir->curr_pos <= 0)
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fir->curr_pos = fir->taps;
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fir->curr_pos--;
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return (int16_t) y;
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}
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/*- End of function --------------------------------------------------------*/
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#endif
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#ifdef __cplusplus
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}
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#endif
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