diff options
Diffstat (limited to 'nuttx/arch/arm/src/kl/kl_lowputc.h')
-rw-r--r-- | nuttx/arch/arm/src/kl/kl_lowputc.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/nuttx/arch/arm/src/kl/kl_lowputc.h b/nuttx/arch/arm/src/kl/kl_lowputc.h new file mode 100644 index 000000000..b30544e0f --- /dev/null +++ b/nuttx/arch/arm/src/kl/kl_lowputc.h @@ -0,0 +1,125 @@ +/************************************************************************************ + * arch/arm/src/kl/kl_lowputc.h + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * 3. Neither the name NuttX 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. + * + ************************************************************************************/ + +#ifndef __ARCH_ARM_SRC_KL_KINETIS_LOWPUTC_H +#define __ARCH_ARM_SRC_KL_KINETIS_LOWPUTC_H + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include <nuttx/config.h> +#include "kl_config.h" + +/************************************************************************************ + * Pre-processor Definitions + ************************************************************************************/ + +/************************************************************************************ + * Public Types + ************************************************************************************/ + +/************************************************************************************ + * Public Data + ************************************************************************************/ + +#ifndef __ASSEMBLY__ + +#undef EXTERN +#if defined(__cplusplus) +#define EXTERN extern "C" +extern "C" +{ +#else +#define EXTERN extern +#endif + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +/************************************************************************************ + * Name: kl_lowsetup + * + * Description: + * Called at the very beginning of _start. Performs low level initialization. + * + ************************************************************************************/ + +void kl_lowsetup(void); + +/**************************************************************************** + * Name: kl_setbaud + * + * Description: + * Set the BAUD divxisor for the selected UART + * + * Mode DIV_X_EN DIV_X_ONE Divider X BRD (Baud rate equation) + * ------------------------------------------------------------- + * 0 Disable 0 B A UART_CLK / [16 * (A+2)] + * 1 Enable 0 B A UART_CLK / [(B+1) * (A+2)] , B must >= 8 + * 2 Enable 1 Don't care A UART_CLK / (A+2), A must >=3 + * + * Here we assume that the default clock source for the UART modules is + * the external high speed crystal. + * + *****************************************************************************/ + +#ifdef HAVE_UART +void kl_setbaud(uintptr_t base, uint32_t baud); +#endif + +/**************************************************************************** + * Name: kl_lowputc + * + * Description: + * Output one character to the UART using a simple polling method. + * + *****************************************************************************/ + +#ifdef HAVE_SERIAL_CONSOLE +void kl_lowputc(uint32_t ch); +#endif + +void kl_uartconfigure(uintptr_t uart_base, uint32_t baud, + uint32_t clock, unsigned int parity, + unsigned int nbits); + +#undef EXTERN +#if defined(__cplusplus) +} +#endif +#endif /* __ASSEMBLY__ */ +#endif /* __ARCH_ARM_SRC_KL_KINETIS_LOWPUTC_H */ |