diff options
Diffstat (limited to 'drivers/staging/echo/fir.h')
| -rw-r--r-- | drivers/staging/echo/fir.h | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/drivers/staging/echo/fir.h b/drivers/staging/echo/fir.h index 5645cb1b2f90..d35f16805f4b 100644 --- a/drivers/staging/echo/fir.h +++ b/drivers/staging/echo/fir.h @@ -72,37 +72,37 @@ 16 bit integer FIR descriptor. This defines the working state for a single instance of an FIR filter using 16 bit integer coefficients. */ -typedef struct { +struct fir16_state_t { int taps; int curr_pos; const int16_t *coeffs; int16_t *history; -} fir16_state_t; +}; /*! 32 bit integer FIR descriptor. This defines the working state for a single instance of an FIR filter using 32 bit integer coefficients, and filtering 16 bit integer data. */ -typedef struct { +struct fir32_state_t { int taps; int curr_pos; const int32_t *coeffs; int16_t *history; -} fir32_state_t; +}; /*! Floating point FIR descriptor. This defines the working state for a single instance of an FIR filter using floating point coefficients and data. */ -typedef struct { +struct fir_float_state_t { int taps; int curr_pos; const float *coeffs; float *history; -} fir_float_state_t; +}; -static __inline__ const int16_t *fir16_create(fir16_state_t * fir, +static __inline__ const int16_t *fir16_create(struct fir16_state_t *fir, const int16_t * coeffs, int taps) { fir->taps = taps; @@ -116,7 +116,7 @@ static __inline__ const int16_t *fir16_create(fir16_state_t * fir, return fir->history; } -static __inline__ void fir16_flush(fir16_state_t * fir) +static __inline__ void fir16_flush(struct fir16_state_t *fir) { #if defined(USE_MMX) || defined(USE_SSE2) || defined(__bfin__) memset(fir->history, 0, 2 * fir->taps * sizeof(int16_t)); @@ -125,7 +125,7 @@ static __inline__ void fir16_flush(fir16_state_t * fir) #endif } -static __inline__ void fir16_free(fir16_state_t * fir) +static __inline__ void fir16_free(struct fir16_state_t *fir) { kfree(fir->history); } @@ -157,19 +157,19 @@ static inline int32_t dot_asm(short *x, short *y, int len) } #endif -static __inline__ int16_t fir16(fir16_state_t * fir, int16_t sample) +static __inline__ int16_t fir16(struct fir16_state_t *fir, int16_t sample) { int32_t y; #if defined(USE_MMX) int i; - mmx_t *mmx_coeffs; - mmx_t *mmx_hist; + union mmx_t *mmx_coeffs; + union mmx_t *mmx_hist; fir->history[fir->curr_pos] = sample; fir->history[fir->curr_pos + fir->taps] = sample; - mmx_coeffs = (mmx_t *) fir->coeffs; - mmx_hist = (mmx_t *) & fir->history[fir->curr_pos]; + mmx_coeffs = (union mmx_t *)fir->coeffs; + mmx_hist = (union mmx_t *)&fir->history[fir->curr_pos]; i = fir->taps; pxor_r2r(mm4, mm4); /* 8 samples per iteration, so the filter must be a multiple of 8 long. */ @@ -193,14 +193,14 @@ static __inline__ int16_t fir16(fir16_state_t * fir, int16_t sample) emms(); #elif defined(USE_SSE2) int i; - xmm_t *xmm_coeffs; - xmm_t *xmm_hist; + union xmm_t *xmm_coeffs; + union xmm_t *xmm_hist; fir->history[fir->curr_pos] = sample; fir->history[fir->curr_pos + fir->taps] = sample; - xmm_coeffs = (xmm_t *) fir->coeffs; - xmm_hist = (xmm_t *) & fir->history[fir->curr_pos]; + xmm_coeffs = (union xmm_t *)fir->coeffs; + xmm_hist = (union xmm_t *)&fir->history[fir->curr_pos]; i = fir->taps; pxor_r2r(xmm4, xmm4); /* 16 samples per iteration, so the filter must be a multiple of 16 long. */ @@ -250,7 +250,7 @@ static __inline__ int16_t fir16(fir16_state_t * fir, int16_t sample) return (int16_t) (y >> 15); } -static __inline__ const int16_t *fir32_create(fir32_state_t * fir, +static __inline__ const int16_t *fir32_create(struct fir32_state_t *fir, const int32_t * coeffs, int taps) { fir->taps = taps; @@ -260,17 +260,17 @@ static __inline__ const int16_t *fir32_create(fir32_state_t * fir, return fir->history; } -static __inline__ void fir32_flush(fir32_state_t * fir) +static __inline__ void fir32_flush(struct fir32_state_t *fir) { memset(fir->history, 0, fir->taps * sizeof(int16_t)); } -static __inline__ void fir32_free(fir32_state_t * fir) +static __inline__ void fir32_free(struct fir32_state_t *fir) { kfree(fir->history); } -static __inline__ int16_t fir32(fir32_state_t * fir, int16_t sample) +static __inline__ int16_t fir32(struct fir32_state_t *fir, int16_t sample) { int i; int32_t y; |