173 lines
5.6 KiB
C
173 lines
5.6 KiB
C
/****************************************************************************
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* arch/arm/src/samd5e5/sam_usart.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_SAMD5E5_SAM_USART_H
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#define __ARCH_ARM_SRC_SAMD5E5_SAM_USART_H
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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 <stdint.h>
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#include <stdbool.h>
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#include <arch/chip/chip.h>
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#include "arm_internal.h"
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#include "hardware/sam_usart.h"
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#include "sam_config.h"
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#include "sam_port.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Pick the console USART configuration */
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#if defined(CONFIG_USART0_SERIAL_CONSOLE)
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# define g_consoleconfig (g_usart0config)
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#elif defined(CONFIG_USART1_SERIAL_CONSOLE)
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# define g_consoleconfig (g_usart1config)
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#elif defined(CONFIG_USART2_SERIAL_CONSOLE)
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# define g_consoleconfig (g_usart2config)
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#elif defined(CONFIG_USART3_SERIAL_CONSOLE)
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# define g_consoleconfig (g_usart3config)
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#elif defined(CONFIG_USART4_SERIAL_CONSOLE)
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# define g_consoleconfig (g_usart4config)
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#elif defined(CONFIG_USART5_SERIAL_CONSOLE)
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# define g_consoleconfig (g_usart5config)
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#elif defined(CONFIG_USART6_SERIAL_CONSOLE)
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# define g_consoleconfig (g_usart6config)
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#elif defined(CONFIG_USART7_SERIAL_CONSOLE)
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# define g_consoleconfig (g_usart7config)
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#else
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# undef g_consoleconfig
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#endif
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* This structure describes the static configuration of a USART */
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struct sam_usart_config_s
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{
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uint8_t sercom; /* Identifies the SERCOM peripheral */
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uint8_t parity; /* 0=none, 1=odd, 2=even */
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uint8_t bits; /* Number of bits (5-9) */
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uint8_t txirq; /* Tx SERCOM IRQ number */
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uint8_t rxirq; /* Rx SERCOM IRQ number */
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uint8_t coregen; /* Core GCLK generator */
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uint8_t slowgen; /* Slow GCLK generator */
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uint8_t stopbits2 : 1; /* True: Configure with 2 stop bits instead of 1 */
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uint8_t corelock : 1; /* True: Lock the CORE clock */
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uint32_t baud; /* Configured baud */
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port_pinset_t pad0; /* Pin configuration for PAD0 */
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port_pinset_t pad1; /* Pin configuration for PAD1 */
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port_pinset_t pad2; /* Pin configuration for PAD2 */
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port_pinset_t pad3; /* Pin configuration for PAD3 */
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uint32_t muxconfig; /* Pad multiplexing configuration */
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uint32_t frequency; /* Source clock frequency */
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uintptr_t base; /* SERCOM base address */
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};
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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/****************************************************************************
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* Name: sam_wait_synchronization
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*
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* Description:
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* Return true is the SERCOM USART reports that it is synchronizing.
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*
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****************************************************************************/
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#ifdef SAMD5E5_HAVE_USART
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static inline
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bool usart_syncbusy(const struct sam_usart_config_s * const config)
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{
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return false;
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}
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#endif
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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#ifdef SAMD5E5_HAVE_USART0
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EXTERN const struct sam_usart_config_s g_usart0config;
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#endif
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#ifdef SAMD5E5_HAVE_USART1
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EXTERN const struct sam_usart_config_s g_usart1config;
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#endif
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#ifdef SAMD5E5_HAVE_USART2
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EXTERN const struct sam_usart_config_s g_usart2config;
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#endif
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#ifdef SAMD5E5_HAVE_USART3
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EXTERN const struct sam_usart_config_s g_usart3config;
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#endif
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#ifdef SAMD5E5_HAVE_USART4
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EXTERN const struct sam_usart_config_s g_usart4config;
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#endif
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#ifdef SAMD5E5_HAVE_USART5
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EXTERN const struct sam_usart_config_s g_usart5config;
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#endif
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#ifdef SAMD5E5_HAVE_USART6
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EXTERN const struct sam_usart_config_s g_usart6config;
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#endif
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#ifdef SAMD5E5_HAVE_USART7
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EXTERN const struct sam_usart_config_s g_usart7config;
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#endif
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EXTERN const struct sam_usart_config_s *g_usartconfig[SAMD5E5_NSERCOM];
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/****************************************************************************
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* Public Functions Prototypes
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_ARM_SRC_SAMD5E5_SAM_USART_H */
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