From 3ec66893e377b088c1284d2d23adb2aeea6d7965 Mon Sep 17 00:00:00 2001 From: Aidan MacDonald Date: Sat, 27 Feb 2021 22:08:58 +0000 Subject: New port: FiiO M3K on bare metal Change-Id: I7517e7d5459e129dcfc9465c6fbd708619888fbe --- firmware/target/mips/mipsr2-endian.h | 44 ++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 firmware/target/mips/mipsr2-endian.h (limited to 'firmware/target/mips/mipsr2-endian.h') diff --git a/firmware/target/mips/mipsr2-endian.h b/firmware/target/mips/mipsr2-endian.h new file mode 100644 index 0000000000..08992bfcdd --- /dev/null +++ b/firmware/target/mips/mipsr2-endian.h @@ -0,0 +1,44 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2021 Aidan MacDonald + * + * 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. + * + ****************************************************************************/ + +#ifndef __MIPSR2_ENDIAN_H__ +#define __MIPSR2_ENDIAN_H__ + +#include + +static inline uint32_t swap32_hw(uint32_t value) +{ + register uint32_t out; + __asm__ ("wsbh %0, %1\n" + "rotr %0, %0, 16\n" + : "=r"(out) : "r"(value)); + return out; +} + +static inline uint16_t swap16_hw(uint16_t value) +{ + register uint32_t out, in; + in = value; + __asm__ ("wsbh %0, %1" : "=r"(out) : "r"(in)); + return (uint16_t)out; +} + +#endif /* __MIPSR2_ENDIAN_H__ */ -- cgit v1.2.3