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-armv5.c | 106 ---------------------------------- 1 file changed, 106 deletions(-) delete mode 100644 firmware/target/arm/pcm-mixer-armv5.c (limited to 'firmware/target/arm/pcm-mixer-armv5.c') diff --git a/firmware/target/arm/pcm-mixer-armv5.c b/firmware/target/arm/pcm-mixer-armv5.c deleted file mode 100644 index 64f2c86f52..0000000000 --- a/firmware/target/arm/pcm-mixer-armv5.c +++ /dev/null @@ -1,106 +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_WRITE_SAMPLES -#define MIXER_OPTIMIZED_MIX_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) -{ - int32_t s0, s1, tmp; - asm volatile ( - "1: \n" - "ldr %4, [%1], #4 \n" - "ldr %5, [%2], #4 \n" - "smulwb %6, %7, %4 \n" - "smulwt %4, %7, %4 \n" - "smlawb %6, %8, %5, %6 \n" - "smlawt %4, %8, %5, %4 \n" - "mov %5, %6, asr #15 \n" - "teq %5, %5, asr #31 \n" - "eorne %6, %9, %6, asr #31 \n" - "mov %5, %4, asr #15 \n" - "teq %5, %5, asr #31 \n" - "eorne %4, %9, %4, asr #31 \n" - "subs %3, %3, #4 \n" - "and %6, %6, %9, lsr #16 \n" - "orr %6, %6, %4, lsl #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), "r"(0xffff7fff)); -} - -/* 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 l, h; - asm volatile ( - "1: \n" - "ldr %3, [%1], #4 \n" - "subs %2, %2, #4 \n" - "smulwt %4, %5, %3 \n" - "smulwb %3, %5, %3 \n" - "mov %4, %4, lsl #16 \n" - "mov %3, %3, lsl #16 \n" - "orr %4, %4, %3, lsr #16 \n" - "str %4, [%0], #4 \n" - "bhi 1b \n" - : "+r"(out), "+r"(src), "+r"(size), - "=&r"(l), "=&r"(h) - : "r"(amp)); - } -} -- cgit v1.2.3