2aa85fd17e
Summary The naming standard at https://cwiki.apache.org/confluence/display/NUTTX/Naming+FAQ requires that all MCU-private functions begin with the name of the architecture, not up_. This PR addresses only these name changes for the ARM-private functions prototyped in arm_internal.h This change to the files only modifies the name of called functions. nxstyle fixes were made for all core architecture files. However, there are well over 5000 additional complaints from MCU drivers and board logic that are unrelated to to this change but were affected by the name change. It is not humanly possible to fix all of these. I ask that this change be treated like other cosmetic changes that we have done which do not require full nxstyle compliance. Impact There should be not impact of this change (other that one step toward more consistent naming). Testing stm32f4discovery:netnsh
129 lines
4.5 KiB
ArmAsm
129 lines
4.5 KiB
ArmAsm
/**************************************************************************
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* c5471/c5471_lowputc.S
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*
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* Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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**************************************************************************/
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/**************************************************************************
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* Included Files
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**************************************************************************/
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#include <nuttx/config.h>
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#include "chip.h"
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#include "arm_arch.h"
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#include "arm_internal.h"
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/**************************************************************************
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* Pre-processor Definitions
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**************************************************************************/
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/**************************************************************************
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* Private Types
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**************************************************************************/
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/**************************************************************************
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* Private Function Prototypes
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**************************************************************************/
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/**************************************************************************
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* Public Data
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**************************************************************************/
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/**************************************************************************
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* Private Data
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**************************************************************************/
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/**************************************************************************
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* Private Functions
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**************************************************************************/
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/**************************************************************************
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* Public Functions
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**************************************************************************/
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/**************************************************************************
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* Name: arm_lowputc
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**************************************************************************/
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/* This assembly language version has the advantage that it can does not
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* require a C stack and uses only r0-r1. Hence it can be used during
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* early boot phases.
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*/
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.text
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.global arm_lowputc
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.type arm_lowputc, function
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arm_lowputc:
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/* On entry, r0 holds the character to be printed */
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#ifdef CONFIG_SERIAL_IRDA_CONSOLE
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ldr r2, =UART_IRDA_BASE /* r2=IRDA UART base */
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#else
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ldr r2, =UART_MODEM_BASE /* r2=Modem UART base */
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#endif
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/* Poll bit 0 of the UART_SSR register. When the bit
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* is clear, the TX FIFO is no longer full
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*/
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1: ldr r1, [r2, #UART_SSR_OFFS]
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tst r1, #UART_SSR_TXFULL
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bne 1b
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/* Send the character by writing it into the UART_THR
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* register.
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*/
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str r0, [r2, #UART_THR_OFFS]
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/* Wait for the tranmsit holding register (THR) to be
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* emptied. This is determined when bit 6 of the LSR
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* is set.
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*/
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2: ldr r1, [r2, #UART_LSR_OFFS]
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tst r1, #0x00000020
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beq 2b
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/* If the character that we just sent was a linefeed,
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* then send a carriage return as well.
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*/
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teq r0, #'\n'
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moveq r0, #'\r'
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beq 1b
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/* And return */
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mov pc, lr
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