Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 1 | /* ----------------------------------------------------------------------------
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| 2 | * ATMEL Microcontroller Software Support
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| 3 | * ----------------------------------------------------------------------------
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| 4 | * Copyright (c) 2009, Atmel Corporation
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| 5 | *
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| 6 | * All rights reserved.
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| 7 | *
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| 8 | * Redistribution and use in source and binary forms, with or without
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| 9 | * modification, are permitted provided that the following conditions are met:
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| 10 | *
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| 11 | * - Redistributions of source code must retain the above copyright notice,
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| 12 | * this list of conditions and the disclaimer below.
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| 13 | *
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| 14 | * Atmel's name may not be used to endorse or promote products derived from
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| 15 | * this software without specific prior written permission.
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| 16 | *
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| 17 | * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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| 20 | * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 22 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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| 23 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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| 24 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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| 25 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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| 26 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | * ----------------------------------------------------------------------------
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| 28 | */
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| 29 |
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| 30 | /**
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| 31 | * \file
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| 32 | *
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| 33 | * Implements UART console.
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| 34 | *
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| 35 | */
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| 36 |
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| 37 | /*----------------------------------------------------------------------------
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| 38 | * Headers
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| 39 | *----------------------------------------------------------------------------*/
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| 40 |
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| 41 | #include "board.h"
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| 42 |
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| 43 | #include <stdio.h>
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| 44 | #include <stdint.h>
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| 45 |
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Kévin Redon | eac1bec | 2018-06-25 15:55:33 +0200 | [diff] [blame] | 46 | #include "ringbuffer.h"
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| 47 |
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 48 | /*----------------------------------------------------------------------------
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| 49 | * Definitions
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| 50 | *----------------------------------------------------------------------------*/
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| 51 |
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 52 | /*----------------------------------------------------------------------------
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| 53 | * Variables
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| 54 | *----------------------------------------------------------------------------*/
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| 55 |
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| 56 | /** Is Console Initialized. */
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Kévin Redon | eac1bec | 2018-06-25 15:55:33 +0200 | [diff] [blame] | 57 | static uint8_t _ucIsConsoleInitialized=0;
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| 58 | /** Ring buffer to queue data to be sent */
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| 59 | static ringbuf uart_tx_buffer;
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 60 |
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 61 | /**
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| 62 | * \brief Configures an USART peripheral with the specified parameters.
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| 63 | *
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| 64 | * \param baudrate Baudrate at which the USART should operate (in Hz).
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| 65 | * \param masterClock Frequency of the system master clock (in Hz).
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| 66 | */
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| 67 | extern void UART_Configure( uint32_t baudrate, uint32_t masterClock)
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| 68 | {
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| 69 | const Pin pPins[] = CONSOLE_PINS;
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Kévin Redon | eac1bec | 2018-06-25 15:55:33 +0200 | [diff] [blame] | 70 | Uart *pUart = CONSOLE_UART;
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 71 |
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| 72 | /* Configure PIO */
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| 73 | PIO_Configure(pPins, PIO_LISTSIZE(pPins));
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| 74 |
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| 75 | /* Configure PMC */
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| 76 | PMC->PMC_PCER0 = 1 << CONSOLE_ID;
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| 77 |
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| 78 | /* Reset and disable receiver & transmitter */
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| 79 | pUart->UART_CR = UART_CR_RSTRX | UART_CR_RSTTX
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| 80 | | UART_CR_RXDIS | UART_CR_TXDIS;
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| 81 |
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| 82 | /* Configure mode */
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| 83 | pUart->UART_MR = UART_MR_PAR_NO;
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| 84 |
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| 85 | /* Configure baudrate */
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| 86 | /* Asynchronous, no oversampling */
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| 87 | pUart->UART_BRGR = (masterClock / baudrate) / 16;
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| 88 |
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| 89 | /* Disable PDC channel */
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| 90 | pUart->UART_PTCR = UART_PTCR_RXTDIS | UART_PTCR_TXTDIS;
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| 91 |
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Kévin Redon | eac1bec | 2018-06-25 15:55:33 +0200 | [diff] [blame] | 92 | /* Reset transmit ring buffer */
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| 93 | rbuf_reset(&uart_tx_buffer);
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| 94 |
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| 95 | /* Enable TX interrupts */
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| 96 | pUart->UART_IER = UART_IER_TXRDY;
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| 97 | NVIC_EnableIRQ(CONSOLE_IRQ);
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| 98 |
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 99 | /* Enable receiver and transmitter */
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| 100 | pUart->UART_CR = UART_CR_RXEN | UART_CR_TXEN;
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| 101 |
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Kévin Redon | eac1bec | 2018-06-25 15:55:33 +0200 | [diff] [blame] | 102 | /* Remember the configuration is complete */
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 103 | _ucIsConsoleInitialized=1 ;
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| 104 | }
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| 105 |
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Kévin Redon | d44cb80 | 2018-07-07 14:41:11 +0200 | [diff] [blame] | 106 | /**
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| 107 | * \brief Disables the USART peripheral and related IRQ
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| 108 | */
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| 109 | void UART_Exit(void)
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| 110 | {
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| 111 | if (!_ucIsConsoleInitialized) {
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| 112 | return;
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| 113 | }
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| 114 |
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| 115 | Uart *pUart = CONSOLE_UART;
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| 116 | pUart->UART_IDR = UART_IDR_TXRDY;
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| 117 | pUart->UART_CR = UART_CR_RSTRX | UART_CR_RSTTX | UART_CR_RXDIS | UART_CR_TXDIS | UART_CR_RSTSTA;
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| 118 | PMC->PMC_PCDR0 = 1 << CONSOLE_ID;
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| 119 | NVIC_DisableIRQ(CONSOLE_IRQ);
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| 120 | }
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| 121 |
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Kévin Redon | eac1bec | 2018-06-25 15:55:33 +0200 | [diff] [blame] | 122 | /** Interrupt Service routine to transmit queued data */
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| 123 | void CONSOLE_ISR(void)
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| 124 | {
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| 125 | Uart *uart = CONSOLE_UART;
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| 126 | if (uart->UART_SR & UART_SR_TXRDY) {
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| 127 | if (!rbuf_is_empty(&uart_tx_buffer)) {
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Kévin Redon | eac1bec | 2018-06-25 15:55:33 +0200 | [diff] [blame] | 128 | uart->UART_THR = rbuf_read(&uart_tx_buffer);
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| 129 | } else {
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| 130 | uart->UART_IDR = UART_IER_TXRDY;
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| 131 | }
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| 132 | }
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| 133 | }
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| 134 |
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 135 | /**
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| 136 | * \brief Outputs a character on the UART line.
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| 137 | *
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| 138 | * \note This function is synchronous (i.e. uses polling).
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| 139 | * \param c Character to send.
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| 140 | */
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| 141 | extern void UART_PutChar( uint8_t c )
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| 142 | {
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Kévin Redon | eac1bec | 2018-06-25 15:55:33 +0200 | [diff] [blame] | 143 | Uart *pUart = CONSOLE_UART ;
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 144 |
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Kévin Redon | eac1bec | 2018-06-25 15:55:33 +0200 | [diff] [blame] | 145 | /* Initialize console is not already done */
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 146 | if ( !_ucIsConsoleInitialized )
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| 147 | {
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| 148 | UART_Configure(CONSOLE_BAUDRATE, BOARD_MCK);
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| 149 | }
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| 150 |
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Kévin Redon | 30f90a7 | 2018-07-03 15:59:51 +0200 | [diff] [blame] | 151 | /* Only store input if buffer is not full, else drop it */
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Kévin Redon | 30f90a7 | 2018-07-03 15:59:51 +0200 | [diff] [blame] | 152 | if (!rbuf_is_full(&uart_tx_buffer)) {
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| 153 | rbuf_write(&uart_tx_buffer, c);
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Kévin Redon | fcf2743 | 2018-07-07 14:51:35 +0200 | [diff] [blame] | 154 | if (!(pUart->UART_IMR & UART_IMR_TXRDY)) {
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| 155 | pUart->UART_IER = UART_IER_TXRDY;
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| 156 | CONSOLE_ISR();
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| 157 | }
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Kévin Redon | eac1bec | 2018-06-25 15:55:33 +0200 | [diff] [blame] | 158 | }
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 159 | }
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| 160 |
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| 161 | /**
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| 162 | * \brief Input a character from the UART line.
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| 163 | *
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| 164 | * \note This function is synchronous
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| 165 | * \return character received.
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| 166 | */
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| 167 | extern uint32_t UART_GetChar( void )
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| 168 | {
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Kévin Redon | eac1bec | 2018-06-25 15:55:33 +0200 | [diff] [blame] | 169 | Uart *pUart = CONSOLE_UART ;
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 170 |
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| 171 | if ( !_ucIsConsoleInitialized )
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| 172 | {
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| 173 | UART_Configure(CONSOLE_BAUDRATE, BOARD_MCK);
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| 174 | }
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| 175 |
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Harald Welte | 02d0ec6 | 2017-05-20 14:46:29 +0100 | [diff] [blame] | 176 | while ( (pUart->UART_SR & UART_SR_RXRDY) == 0 )
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| 177 | WDT_Restart(WDT);
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 178 |
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| 179 | return pUart->UART_RHR ;
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| 180 | }
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| 181 |
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| 182 | /**
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| 183 | * \brief Check if there is Input from UART line.
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| 184 | *
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| 185 | * \return true if there is Input.
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| 186 | */
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| 187 | extern uint32_t UART_IsRxReady( void )
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| 188 | {
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Kévin Redon | eac1bec | 2018-06-25 15:55:33 +0200 | [diff] [blame] | 189 | Uart *pUart = CONSOLE_UART;
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 190 |
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| 191 | if ( !_ucIsConsoleInitialized )
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| 192 | {
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| 193 | UART_Configure( CONSOLE_BAUDRATE, BOARD_MCK ) ;
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| 194 | }
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| 195 |
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| 196 | return (pUart->UART_SR & UART_SR_RXRDY) > 0 ;
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| 197 | }
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| 198 |
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| 199 | /**
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| 200 | * Displays the content of the given frame on the UART0.
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| 201 | *
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| 202 | * \param pucFrame Pointer to the frame to dump.
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| 203 | * \param dwSize Buffer size in bytes.
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| 204 | */
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| 205 | extern void UART_DumpFrame( uint8_t* pucFrame, uint32_t dwSize )
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| 206 | {
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| 207 | uint32_t dw ;
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| 208 |
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| 209 | for ( dw=0 ; dw < dwSize ; dw++ )
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| 210 | {
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| 211 | printf( "%02X ", pucFrame[dw] ) ;
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| 212 | }
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| 213 |
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| 214 | printf( "\n\r" ) ;
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| 215 | }
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| 216 |
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| 217 | /**
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| 218 | * Displays the content of the given buffer on the UART0.
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| 219 | *
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| 220 | * \param pucBuffer Pointer to the buffer to dump.
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| 221 | * \param dwSize Buffer size in bytes.
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| 222 | * \param dwAddress Start address to display
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| 223 | */
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| 224 | extern void UART_DumpMemory( uint8_t* pucBuffer, uint32_t dwSize, uint32_t dwAddress )
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| 225 | {
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| 226 | uint32_t i ;
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| 227 | uint32_t j ;
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| 228 | uint32_t dwLastLineStart ;
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| 229 | uint8_t* pucTmp ;
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| 230 |
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| 231 | for ( i=0 ; i < (dwSize / 16) ; i++ )
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| 232 | {
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| 233 | printf( "0x%08X: ", (unsigned int)(dwAddress + (i*16)) ) ;
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| 234 | pucTmp = (uint8_t*)&pucBuffer[i*16] ;
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| 235 |
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| 236 | for ( j=0 ; j < 4 ; j++ )
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| 237 | {
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| 238 | printf( "%02X%02X%02X%02X ", pucTmp[0], pucTmp[1], pucTmp[2], pucTmp[3] ) ;
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| 239 | pucTmp += 4 ;
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| 240 | }
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| 241 |
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| 242 | pucTmp=(uint8_t*)&pucBuffer[i*16] ;
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| 243 |
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| 244 | for ( j=0 ; j < 16 ; j++ )
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| 245 | {
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| 246 | UART_PutChar( *pucTmp++ ) ;
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| 247 | }
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| 248 |
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| 249 | printf( "\n\r" ) ;
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| 250 | }
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| 251 |
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| 252 | if ( (dwSize%16) != 0 )
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| 253 | {
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| 254 | dwLastLineStart=dwSize - (dwSize%16) ;
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| 255 |
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| 256 | printf( "0x%08X: ", (unsigned int)(dwAddress + dwLastLineStart) ) ;
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| 257 | for ( j=dwLastLineStart ; j < dwLastLineStart+16 ; j++ )
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| 258 | {
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| 259 | if ( (j!=dwLastLineStart) && (j%4 == 0) )
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| 260 | {
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| 261 | printf( " " ) ;
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| 262 | }
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| 263 |
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| 264 | if ( j < dwSize )
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| 265 | {
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| 266 | printf( "%02X", pucBuffer[j] ) ;
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| 267 | }
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| 268 | else
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| 269 | {
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| 270 | printf(" ") ;
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| 271 | }
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| 272 | }
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| 273 |
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| 274 | printf( " " ) ;
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| 275 | for ( j=dwLastLineStart ; j < dwSize ; j++ )
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| 276 | {
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| 277 | UART_PutChar( pucBuffer[j] ) ;
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| 278 | }
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| 279 |
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| 280 | printf( "\n\r" ) ;
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| 281 | }
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| 282 | }
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| 283 |
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| 284 | /**
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| 285 | * Reads an integer
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| 286 | *
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| 287 | * \param pdwValue Pointer to the uint32_t variable to contain the input value.
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| 288 | */
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| 289 | extern uint32_t UART_GetInteger( uint32_t* pdwValue )
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| 290 | {
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| 291 | uint8_t ucKey ;
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| 292 | uint8_t ucNbNb=0 ;
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| 293 | uint32_t dwValue=0 ;
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| 294 |
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| 295 | while ( 1 )
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| 296 | {
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| 297 | ucKey=UART_GetChar() ;
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| 298 | UART_PutChar( ucKey ) ;
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| 299 |
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| 300 | if ( ucKey >= '0' && ucKey <= '9' )
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| 301 | {
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| 302 | dwValue = (dwValue * 10) + (ucKey - '0');
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| 303 | ucNbNb++ ;
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| 304 | }
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| 305 | else
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| 306 | {
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| 307 | if ( ucKey == 0x0D || ucKey == ' ' )
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| 308 | {
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| 309 | if ( ucNbNb == 0 )
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| 310 | {
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| 311 | printf( "\n\rWrite a number and press ENTER or SPACE!\n\r" ) ;
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| 312 | return 0 ;
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| 313 | }
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| 314 | else
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| 315 | {
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| 316 | printf( "\n\r" ) ;
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| 317 | *pdwValue=dwValue ;
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| 318 |
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| 319 | return 1 ;
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| 320 | }
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| 321 | }
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| 322 | else
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| 323 | {
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| 324 | printf( "\n\r'%c' not a number!\n\r", ucKey ) ;
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| 325 |
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| 326 | return 0 ;
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| 327 | }
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| 328 | }
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Harald Welte | 02d0ec6 | 2017-05-20 14:46:29 +0100 | [diff] [blame] | 329 | WDT_Restart(WDT);
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Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 330 | }
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| 331 | }
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| 332 |
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| 333 | /**
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| 334 | * Reads an integer and check the value
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| 335 | *
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| 336 | * \param pdwValue Pointer to the uint32_t variable to contain the input value.
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| 337 | * \param dwMin Minimum value
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| 338 | * \param dwMax Maximum value
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| 339 | */
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| 340 | extern uint32_t UART_GetIntegerMinMax( uint32_t* pdwValue, uint32_t dwMin, uint32_t dwMax )
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| 341 | {
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| 342 | uint32_t dwValue=0 ;
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| 343 |
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| 344 | if ( UART_GetInteger( &dwValue ) == 0 )
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| 345 | {
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| 346 | return 0 ;
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| 347 | }
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| 348 |
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| 349 | if ( dwValue < dwMin || dwValue > dwMax )
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| 350 | {
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| 351 | printf( "\n\rThe number have to be between %d and %d\n\r", (int)dwMin, (int)dwMax ) ;
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| 352 |
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| 353 | return 0 ;
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| 354 | }
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| 355 |
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| 356 | printf( "\n\r" ) ;
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| 357 |
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| 358 | *pdwValue = dwValue ;
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| 359 |
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| 360 | return 1 ;
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| 361 | }
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| 362 |
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| 363 | /**
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| 364 | * Reads an hexadecimal number
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| 365 | *
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| 366 | * \param pdwValue Pointer to the uint32_t variable to contain the input value.
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| 367 | */
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| 368 | extern uint32_t UART_GetHexa32( uint32_t* pdwValue )
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| 369 | {
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| 370 | uint8_t ucKey ;
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| 371 | uint32_t dw = 0 ;
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| 372 | uint32_t dwValue = 0 ;
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| 373 |
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| 374 | for ( dw=0 ; dw < 8 ; dw++ )
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| 375 | {
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| 376 | ucKey = UART_GetChar() ;
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| 377 | UART_PutChar( ucKey ) ;
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| 378 |
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| 379 | if ( ucKey >= '0' && ucKey <= '9' )
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| 380 | {
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| 381 | dwValue = (dwValue * 16) + (ucKey - '0') ;
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| 382 | }
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| 383 | else
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| 384 | {
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| 385 | if ( ucKey >= 'A' && ucKey <= 'F' )
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| 386 | {
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| 387 | dwValue = (dwValue * 16) + (ucKey - 'A' + 10) ;
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| 388 | }
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| 389 | else
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| 390 | {
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| 391 | if ( ucKey >= 'a' && ucKey <= 'f' )
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| 392 | {
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| 393 | dwValue = (dwValue * 16) + (ucKey - 'a' + 10) ;
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| 394 | }
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| 395 | else
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| 396 | {
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| 397 | printf( "\n\rIt is not a hexa character!\n\r" ) ;
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| 398 |
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| 399 | return 0 ;
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| 400 | }
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| 401 | }
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| 402 | }
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| 403 | }
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| 404 |
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| 405 | printf("\n\r" ) ;
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| 406 | *pdwValue = dwValue ;
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| 407 |
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| 408 | return 1 ;
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| 409 | }
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| 410 |
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| 411 | #if defined __ICCARM__ /* IAR Ewarm 5.41+ */
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| 412 | /**
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| 413 | * \brief Outputs a character on the UART.
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| 414 | *
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| 415 | * \param c Character to output.
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| 416 | *
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| 417 | * \return The character that was output.
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| 418 | */
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| 419 | extern WEAK signed int putchar( signed int c )
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| 420 | {
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| 421 | UART_PutChar( c ) ;
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| 422 |
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| 423 | return c ;
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| 424 | }
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| 425 | #endif // defined __ICCARM__
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| 426 |
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