diff options
Diffstat (limited to 'drivers/isdn/i4l/isdn_audio.c')
| -rw-r--r-- | drivers/isdn/i4l/isdn_audio.c | 126 |
1 files changed, 63 insertions, 63 deletions
diff --git a/drivers/isdn/i4l/isdn_audio.c b/drivers/isdn/i4l/isdn_audio.c index d501393..78ce422 100644 --- a/drivers/isdn/i4l/isdn_audio.c +++ b/drivers/isdn/i4l/isdn_audio.c @@ -204,9 +204,9 @@ isdn_audio_tlookup(const u_char *table, u_char *buff, unsigned long n) "xlatb\n\t" "stosb\n\t" "loop 1b\n\t" - : "=&b"(d0), "=&c"(d1), "=&D"(d2), "=&S"(d3) - : "0"((long) table), "1"(n), "2"((long) buff), "3"((long) buff) - : "memory", "ax"); + : "=&b"(d0), "=&c"(d1), "=&D"(d2), "=&S"(d3) + : "0"((long) table), "1"(n), "2"((long) buff), "3"((long) buff) + : "memory", "ax"); #else while (n--) *buff = table[*(unsigned char *)buff], buff++; @@ -242,27 +242,27 @@ static unsigned char isdn_audio_linear2ulaw(int sample) { static int exp_lut[256] = - { - 0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 - }; + { + 0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 + }; int sign, - exponent, - mantissa; + exponent, + mantissa; unsigned char ulawbyte; /* Get the sample into sign-magnitude. */ @@ -299,7 +299,7 @@ static int bitmask[9] = }; static int -isdn_audio_get_bits(adpcm_state * s, unsigned char **in, int *len) +isdn_audio_get_bits(adpcm_state *s, unsigned char **in, int *len) { while (s->nleft < s->nbits) { int d = *((*in)++); @@ -312,7 +312,7 @@ isdn_audio_get_bits(adpcm_state * s, unsigned char **in, int *len) } static void -isdn_audio_put_bits(int data, int nbits, adpcm_state * s, +isdn_audio_put_bits(int data, int nbits, adpcm_state *s, unsigned char **out, int *len) { s->word = (s->word << nbits) | (data & bitmask[nbits]); @@ -326,7 +326,7 @@ isdn_audio_put_bits(int data, int nbits, adpcm_state * s, } adpcm_state * -isdn_audio_adpcm_init(adpcm_state * s, int nbits) +isdn_audio_adpcm_init(adpcm_state *s, int nbits) { if (!s) s = kmalloc(sizeof(adpcm_state), GFP_ATOMIC); @@ -341,7 +341,7 @@ isdn_audio_adpcm_init(adpcm_state * s, int nbits) } dtmf_state * -isdn_audio_dtmf_init(dtmf_state * s) +isdn_audio_dtmf_init(dtmf_state *s) { if (!s) s = kmalloc(sizeof(dtmf_state), GFP_ATOMIC); @@ -358,7 +358,7 @@ isdn_audio_dtmf_init(dtmf_state * s) */ int -isdn_audio_adpcm2xlaw(adpcm_state * s, int fmt, unsigned char *in, +isdn_audio_adpcm2xlaw(adpcm_state *s, int fmt, unsigned char *in, unsigned char *out, int len) { int a = s->a; @@ -379,7 +379,7 @@ isdn_audio_adpcm2xlaw(adpcm_state * s, int fmt, unsigned char *in, a++; if (fmt) *out++ = isdn_audio_ulaw_to_alaw[ - isdn_audio_linear2ulaw(a << 2)]; + isdn_audio_linear2ulaw(a << 2)]; else *out++ = isdn_audio_linear2ulaw(a << 2); olen++; @@ -393,7 +393,7 @@ isdn_audio_adpcm2xlaw(adpcm_state * s, int fmt, unsigned char *in, } int -isdn_audio_xlaw2adpcm(adpcm_state * s, int fmt, unsigned char *in, +isdn_audio_xlaw2adpcm(adpcm_state *s, int fmt, unsigned char *in, unsigned char *out, int len) { int a = s->a; @@ -403,9 +403,9 @@ isdn_audio_xlaw2adpcm(adpcm_state * s, int fmt, unsigned char *in, while (len--) { int e = 0, - nmax = 1 << (nbits - 1); + nmax = 1 << (nbits - 1); int sign, - delta; + delta; if (fmt) delta = (isdn_audio_alaw_to_s16[*in++] >> 2) - a; @@ -439,26 +439,26 @@ isdn_audio_xlaw2adpcm(adpcm_state * s, int fmt, unsigned char *in, /* * Goertzel algorithm. - * See http://ptolemy.eecs.berkeley.edu/papers/96/dtmf_ict/ + * See http://ptolemy.eecs.berkeley.edu/papers/96/dtmf_ict/ * for more info. * Result is stored into an sk_buff and queued up for later * evaluation. */ static void -isdn_audio_goertzel(int *sample, modem_info * info) +isdn_audio_goertzel(int *sample, modem_info *info) { int sk, - sk1, - sk2; + sk1, + sk2; int k, - n; + n; struct sk_buff *skb; int *result; skb = dev_alloc_skb(sizeof(int) * NCOEFF); if (!skb) { printk(KERN_WARNING - "isdn_audio: Could not alloc DTMF result for ttyI%d\n", + "isdn_audio: Could not alloc DTMF result for ttyI%d\n", info->line); return; } @@ -483,16 +483,16 @@ isdn_audio_goertzel(int *sample, modem_info * info) printk(KERN_DEBUG "isdn_audio: dtmf goertzel overflow, sk2=%d\n", sk2); result[k] = - ((sk * sk) >> AMP_BITS) - - ((((cos2pik[k] * sk) >> 15) * sk2) >> AMP_BITS) + - ((sk2 * sk2) >> AMP_BITS); + ((sk * sk) >> AMP_BITS) - + ((((cos2pik[k] * sk) >> 15) * sk2) >> AMP_BITS) + + ((sk2 * sk2) >> AMP_BITS); } skb_queue_tail(&info->dtmf_queue, skb); isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1); } void -isdn_audio_eval_dtmf(modem_info * info) +isdn_audio_eval_dtmf(modem_info *info) { struct sk_buff *skb; int *result; @@ -590,7 +590,7 @@ isdn_audio_eval_dtmf(modem_info * info) * fmt = audio data format (0 = ulaw, 1 = alaw) */ void -isdn_audio_calc_dtmf(modem_info * info, unsigned char *buf, int len, int fmt) +isdn_audio_calc_dtmf(modem_info *info, unsigned char *buf, int len, int fmt) { dtmf_state *s = info->dtmf_state; int i; @@ -605,10 +605,10 @@ isdn_audio_calc_dtmf(modem_info * info, unsigned char *buf, int len, int fmt) for (i = 0; i < c; i++) { if (fmt) s->buf[s->idx++] = - isdn_audio_alaw_to_s16[*buf++] >> (15 - AMP_BITS); + isdn_audio_alaw_to_s16[*buf++] >> (15 - AMP_BITS); else s->buf[s->idx++] = - isdn_audio_ulaw_to_s16[*buf++] >> (15 - AMP_BITS); + isdn_audio_ulaw_to_s16[*buf++] >> (15 - AMP_BITS); } if (s->idx == DTMF_NPOINTS) { isdn_audio_goertzel(s->buf, info); @@ -619,7 +619,7 @@ isdn_audio_calc_dtmf(modem_info * info, unsigned char *buf, int len, int fmt) } silence_state * -isdn_audio_silence_init(silence_state * s) +isdn_audio_silence_init(silence_state *s) { if (!s) s = kmalloc(sizeof(silence_state), GFP_ATOMIC); @@ -631,7 +631,7 @@ isdn_audio_silence_init(silence_state * s) } void -isdn_audio_calc_silence(modem_info * info, unsigned char *buf, int len, int fmt) +isdn_audio_calc_silence(modem_info *info, unsigned char *buf, int len, int fmt) { silence_state *s = info->silence_state; int i; @@ -641,24 +641,24 @@ isdn_audio_calc_silence(modem_info * info, unsigned char *buf, int len, int fmt) for (i = 0; i < len; i++) { if (fmt) - c = isdn_audio_alaw_to_ulaw[*buf++]; - else - c = *buf++; + c = isdn_audio_alaw_to_ulaw[*buf++]; + else + c = *buf++; if (c > 0) c -= 128; c = abs(c); - if (c > (info->emu.vpar[1] * 4)) { + if (c > (info->emu.vpar[1] * 4)) { s->idx = 0; - s->state = 1; + s->state = 1; } else { - if (s->idx < 210000) s->idx++; + if (s->idx < 210000) s->idx++; } } } void -isdn_audio_put_dle_code(modem_info * info, u_char code) +isdn_audio_put_dle_code(modem_info *info, u_char code) { struct sk_buff *skb; int di; @@ -668,7 +668,7 @@ isdn_audio_put_dle_code(modem_info * info, u_char code) skb = dev_alloc_skb(2); if (!skb) { printk(KERN_WARNING - "isdn_audio: Could not alloc skb for ttyI%d\n", + "isdn_audio: Could not alloc skb for ttyI%d\n", info->line); return; } @@ -688,24 +688,24 @@ isdn_audio_put_dle_code(modem_info * info, u_char code) } void -isdn_audio_eval_silence(modem_info * info) +isdn_audio_eval_silence(modem_info *info) { silence_state *s = info->silence_state; char what; what = ' '; - if (s->idx > (info->emu.vpar[2] * 800)) { + if (s->idx > (info->emu.vpar[2] * 800)) { s->idx = 0; - if (!s->state) { /* silence from beginning of rec */ + if (!s->state) { /* silence from beginning of rec */ what = 's'; } else { what = 'q'; } } - if ((what == 's') || (what == 'q')) { - printk(KERN_DEBUG "ttyI%d: %s\n", info->line, - (what=='s') ? "silence":"quiet"); - isdn_audio_put_dle_code(info, what); - } + if ((what == 's') || (what == 'q')) { + printk(KERN_DEBUG "ttyI%d: %s\n", info->line, + (what == 's') ? "silence" : "quiet"); + isdn_audio_put_dle_code(info, what); + } } |
