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/coldfire/pcm-mixer-coldfire.c | 134 -------------------------- 1 file changed, 134 deletions(-) delete mode 100644 firmware/target/coldfire/pcm-mixer-coldfire.c (limited to 'firmware/target/coldfire') diff --git a/firmware/target/coldfire/pcm-mixer-coldfire.c b/firmware/target/coldfire/pcm-mixer-coldfire.c deleted file mode 100644 index d8318fffaf..0000000000 --- a/firmware/target/coldfire/pcm-mixer-coldfire.c +++ /dev/null @@ -1,134 +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 -static struct emac_context -{ - unsigned long r[4]; -} emac_context IBSS_ATTR; - -/* Save emac context affected in ISR */ -static FORCE_INLINE void save_emac_context(void) -{ - asm volatile ( - "move.l %%macsr, %%d0 \n" - "move.l %%accext01, %%d1 \n" - "movclr.l %%acc0, %%a0 \n" - "movclr.l %%acc1, %%a1 \n" - "movem.l %%d0-%%d1/%%a0-%%a1, (%0) \n" - : - : "a"(&emac_context) - : "d0", "d1", "a0", "a1"); -} - -/* Restore emac context affected in ISR */ -static FORCE_INLINE void restore_emac_context(void) -{ - asm volatile ( - "movem.l (%0), %%d0-%%d1/%%a0-%%a1 \n" - "move.l %%a1, %%acc1 \n" - "move.l %%a0, %%acc0 \n" - "move.l %%d1, %%accext01 \n" - "move.l %%d0, %%macsr \n" - : - : "a"(&emac_context) - : "d0", "d1", "a0", "a1"); -} - -/* 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, s2, s3; - save_emac_context(); - coldfire_set_macsr(EMAC_ROUND | EMAC_SATURATE); - - asm volatile ( - "move.l (%1)+, %5 \n" - "1: \n" - "movea.w %5, %4 \n" - "asr.l %10, %5 \n" - "mac.l %4, %8, %%acc0 \n" - "mac.l %5, %8, (%2)+, %5, %%acc1 \n" - "movea.w %5, %4 \n" - "asr.l %10, %5 \n" - "mac.l %4, %9, %%acc0 \n" - "mac.l %5, %9, (%1)+, %5, %%acc1 \n" - "movclr.l %%acc0, %6 \n" - "movclr.l %%acc1, %7 \n" - "swap.w %6 \n" - "move.w %6, %7 \n" - "move.l %7, (%0)+ \n" - "subq.l #4, %3 \n" - "bhi.b 1b \n" - : "+a"(out), "+a"(src0), "+a"(src1), "+d"(size), - "=&a"(s0), "=&d"(s1), "=&d"(s2), "=&d"(s3) - : "r"(src0_amp), "r"(src1_amp), "d"(16) - ); - - restore_emac_context(); -} - -/* 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 */ - memcpy(out, src, size); - } - else - { - /* Channel needs amplitude cut */ - uint32_t s0, s1, s2, s3; - save_emac_context(); - coldfire_set_macsr(EMAC_ROUND | EMAC_SATURATE); - - asm volatile ( - "move.l (%1)+, %4 \n" - "1: \n" - "movea.w %4, %3 \n" - "asr.l %8, %4 \n" - "mac.l %3, %7, %%acc0 \n" - "mac.l %4, %7, (%1)+, %4, %%acc1 \n" - "movclr.l %%acc0, %5 \n" - "movclr.l %%acc1, %6 \n" - "swap.w %5 \n" - "move.w %5, %6 \n" - "move.l %6, (%0)+ \n" - "subq.l #4, %2 \n" - "bhi.b 1b \n" - : "+a"(out), "+a"(src), "+d"(size), - "=&a"(s0), "=&d"(s1), "=&d"(s2), "=&d"(s3) - : "r"(amp), "d"(16) - ); - - restore_emac_context(); - } -} -- cgit v1.2.3