From 3c17f28eca86ff3ee9e7cef6c4d5198c27b7c03c Mon Sep 17 00:00:00 2001 From: Thomas Martitz Date: Fri, 6 Jan 2012 06:26:48 +0100 Subject: Move pcm_mixer helper routines to firmware/asm. --- firmware/target/arm/pcm-mixer-armv6.c | 118 ---------------------------------- 1 file changed, 118 deletions(-) delete mode 100644 firmware/target/arm/pcm-mixer-armv6.c (limited to 'firmware/target/arm/pcm-mixer-armv6.c') diff --git a/firmware/target/arm/pcm-mixer-armv6.c b/firmware/target/arm/pcm-mixer-armv6.c deleted file mode 100644 index 94eecd0f90..0000000000 --- a/firmware/target/arm/pcm-mixer-armv6.c +++ /dev/null @@ -1,118 +0,0 @@ -/*************************************************************************** - * __________ __ ___. - * Open \______ \ ____ ____ | | _\_ |__ _______ ___ - * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / - * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < - * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ - * \/ \/ \/ \/ \/ - * $Id$ - * - * Copyright (C) 2011 by Michael Sevakis - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ****************************************************************************/ -#define MIXER_OPTIMIZED_MIX_SAMPLES -#define MIXER_OPTIMIZED_WRITE_SAMPLES - -/* Mix channels' samples and apply gain factors */ -static FORCE_INLINE void mix_samples(void *out, - void *src0, - int32_t src0_amp, - void *src1, - int32_t src1_amp, - size_t size) -{ - uint32_t s0, s1; - - if (src0_amp == MIX_AMP_UNITY && src1_amp == MIX_AMP_UNITY) - { - /* Both are unity amplitude */ - asm volatile ( - "1: \n" - "ldr %4, [%1], #4 \n" - "ldr %5, [%2], #4 \n" - "subs %3, %3, #4 \n" - "qadd16 %5, %5, %4 \n" - "str %5, [%0], #4 \n" - "bhi 1b \n" - : "+r"(out), "+r"(src0), "+r"(src1), "+r"(size), - "=&r"(s0), "=&r"(s1)); - } - else - { - /* One or neither are unity amplitude */ - uint32_t tmp; - asm volatile ( - "1: \n" - "ldr %4, [%1], #4 \n" - "ldr %5, [%2], #4 \n" - "subs %3, %3, #4 \n" - "smulwb %6, %7, %4 \n" - "smulwt %4, %7, %4 \n" - "smlawb %6, %8, %5, %6 \n" - "smlawt %4, %8, %5, %4 \n" - "ssat %6, #16, %6 \n" - "ssat %4, #16, %4 \n" - "pkhbt %6, %6, %4, asl #16 \n" - "str %6, [%0], #4 \n" - "bhi 1b \n" - : "+r"(out), "+r"(src0), "+r"(src1), "+r"(size), - "=&r"(s0), "=&r"(s1), "=&r"(tmp) - : "r"(src0_amp), "r"(src1_amp)); - } -} - -/* Write channel's samples and apply gain factor */ -static FORCE_INLINE void write_samples(void *out, - void *src, - int32_t amp, - size_t size) -{ - if (LIKELY(amp == MIX_AMP_UNITY)) - { - /* Channel is unity amplitude */ - asm volatile ( - "ands r1, %2, #0x1f \n" - "beq 2f \n" - "1: \n" - "ldr r0, [%1], #4 \n" - "subs r1, r1, #4 \n" - "str r0, [%0], #4 \n" - "bne 1b \n" - "bics %2, %2, #0x1f \n" - "beq 3f \n" - "2: \n" - "ldmia %1!, { r0-r7 } \n" - "subs %2, %2, #32 \n" - "stmia %0!, { r0-r7 } \n" - "bhi 2b \n" - "3: \n" - : "+r"(out), "+r"(src), "+r"(size) - : - : "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7"); - } - else - { - /* Channel needs amplitude cut */ - uint32_t s, tmp; - asm volatile( - "1: \n" - "ldr %3, [%1], #4 \n" - "subs %2, %2, #4 \n" - "smulwt %4, %5, %3 \n" - "smulwb %3, %5, %3 \n" - "pkhbt %4, %3, %4, asl #16 \n" - "str %4, [%0], #4 \n" - "bhi 1b \n" - : "+r"(out), "+r"(src), "+r"(size), - "=&r"(s), "=&r"(tmp) - : "r"(amp)); - } -} -- cgit v1.2.3