From 8785645a952c03315dbf93667b5f7c7eec49762f Mon Sep 17 00:00:00 2001
From: danicampora
Date: Fri, 6 Feb 2015 15:35:48 +0100
Subject: cc3200: Add cc3200 port of MicroPython.

The port currently implements support for GPIO, RTC, ExtInt and the WiFi
subsystem. A small file system is available in the serial flash. A
bootloader which makes OTA updates possible, is also part of this initial
implementation.
---
 cc3200/hal/utils.c | 104 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 cc3200/hal/utils.c

(limited to 'cc3200/hal/utils.c')

diff --git a/cc3200/hal/utils.c b/cc3200/hal/utils.c
new file mode 100644
index 000000000..d0b13d7bf
--- /dev/null
+++ b/cc3200/hal/utils.c
@@ -0,0 +1,104 @@
+//*****************************************************************************
+//
+//  utils.c
+//
+//  Utility APIs
+//
+//  Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
+//
+//
+//  Redistribution and use in source and binary forms, with or without
+//  modification, are permitted provided that the following conditions
+//  are met:
+//
+//    Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+//
+//    Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the
+//    distribution.
+//
+//    Neither the name of Texas Instruments Incorporated nor the names of
+//    its contributors may be used to endorse or promote products derived
+//    from this software without specific prior written permission.
+//
+//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+//  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+//  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+//  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+//  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+//  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+//  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+//  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+//  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+//  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+//  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+//*****************************************************************************
+
+//*****************************************************************************
+//
+//! \addtogroup Utils_api
+//! @{
+//
+//*****************************************************************************
+#include "utils.h"
+
+
+//*****************************************************************************
+//
+//! Provides a small delay.
+//!
+//! \param ulCount is the number of delay loop iterations to perform.
+//!
+//! This function provides a means of generating a constant length delay.  It
+//! is written in assembly to keep the delay consistent across tool chains,
+//! avoiding the need to tune the delay based on the tool chain in use.
+//!
+//! The loop takes 3 cycles/loop.
+//!
+//! \return None.
+//
+//*****************************************************************************
+#if defined(ewarm) || defined(DOXYGEN)
+void
+UtilsDelay(unsigned long ulCount)
+{
+    __asm("    subs    r0, #1\n"
+          "    bne.n   UtilsDelay\n");
+}
+#endif
+
+#if defined(gcc)
+void __attribute__((naked))
+UtilsDelay(unsigned long ulCount)
+{
+    __asm("    subs    r0, #1\n"
+          "    bne     UtilsDelay\n"
+          "    bx      lr");
+}
+#endif
+
+//
+// For CCS implement this function in pure assembly.  This prevents the TI
+// compiler from doing funny things with the optimizer.
+//
+#if defined(ccs)
+    __asm("    .sect \".text:UtilsDelay\"\n"
+          "    .clink\n"
+          "    .thumbfunc UtilsDelay\n"
+          "    .thumb\n"
+          "    .global UtilsDelay\n"
+          "UtilsDelay:\n"
+          "    subs r0, #1\n"
+          "    bne.n UtilsDelay\n"
+          "    bx lr\n");
+#endif
+
+//*****************************************************************************
+//
+// Close the Doxygen group.
+//! @}
+//
+//*****************************************************************************
-- 
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