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/netgear-R7000-V1.0.7.12_1.2.5/components/opensource/linux/linux-2.6.36/drivers/isdn/i4l/
H A Disdn_audio.c178 #define HIGRP 1 macro
512 grp[LOGRP] = grp[HIGRP] = -1;
543 if (grp[HIGRP] >= 0) { // Bad. Another tone found. */
544 grp[HIGRP] = -1;
548 grp[HIGRP] = i - NCOEFF/2;
551 if ((grp[LOGRP] >= 0) && (grp[HIGRP] >= 0)) {
552 what = dtmf_matrix[grp[LOGRP]][grp[HIGRP]];

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