173 lines
6.0 KiB
C
173 lines
6.0 KiB
C
/*******************************************************************************
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* DISCLAIMER
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* This software is supplied by Renesas Electronics Corporation and is only
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* intended for use with Renesas products. No other uses are authorized. This
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* software is owned by Renesas Electronics Corporation and is protected under
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* all applicable laws, including copyright laws.
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* THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
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* THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
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* LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
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* AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
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* TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
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* ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
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* FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
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* ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
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* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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* Renesas reserves the right, without notice, to make changes to this software
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* and to discontinue the availability of this software. By using this software,
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* you agree to the additional terms and conditions found by accessing the
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* following link:
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* http://www.renesas.com/disclaimer
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* Copyright 2018-2022 Renesas Electronics Corporation All rights reserved.
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*******************************************************************************/
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/*******************************************************************************
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* DESCRIPTION : SCIF driver
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******************************************************************************/
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/******************************************************************************
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* @file scif.c
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* - Version : 0.07
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* @brief 1. Initial setting of SCIF.
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* 2. Initial setting of HSCIF.
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* 3. Log output function.
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* .
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*****************************************************************************/
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/******************************************************************************
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* History : DD.MM.YYYY Version Description
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* : 28.07.2021 0.01 First Release
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* : 03.09.2021 0.02 Modify the timing of MODEMR judgement.
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* : 15.10.2021 0.03 Modify register access to read modify write.
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* : 03.12.2021 0.04 Fix incorrect configuration process.
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* : 06.01.2022 0.05 Static analysis support
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* : 16.06.2022 0.06 Change line feed code
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* : 31.10.2022 0.07 License notation change.
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*****************************************************************************/
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#include <stdint.h>
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#include <types.h>
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#include <scif.h>
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#include <mem_io.h>
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#include <rst_register.h>
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/* Define */
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#define SCIF_SCFSR_TEND (uint16_t)((uint16_t)1U << 6U)
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#define SCIF_SCFSR_TDFE (uint16_t)((uint16_t)1U << 5U)
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#define TRANS_END_CHECK (uint16_t)(SCIF_SCFSR_TEND | SCIF_SCFSR_TDFE)
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static void (*rcar_putc)(uint8_t outchar);
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static void scif_console_init(uint32_t modemr);
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static void scif_console_putc(uint8_t outchar);
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static void hscif_console_putc(uint8_t outchar);
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static void scif_console_init(uint32_t modemr)
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{
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switch(modemr)
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{
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case MODEMR_HSCIF_DLMODE_3000000:
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{
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/* Set the pointer to a function that outputs one character. */
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rcar_putc = hscif_console_putc;
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break;
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}
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case MODEMR_HSCIF_DLMODE_1843200:
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{
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/* Set the pointer to a function that outputs one character. */
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rcar_putc = hscif_console_putc;
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break;
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}
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case MODEMR_HSCIF_DLMODE_921600:
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{
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/* Set the pointer to a function that outputs one character. */
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rcar_putc = hscif_console_putc;
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break;
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}
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case MODEMR_SCIF_DLMODE:
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default:
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{
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/* Set the pointer to a function that outputs one character. */
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rcar_putc = scif_console_putc;
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break;
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}
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}
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}
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/* End of function scif_console_init(void) */
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void scif_init(void)
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{
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uint32_t modemr;
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#ifdef FORCE_115200 /* force to serial speed to 115200 bps */
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#define _MODE31 (0xEB22FFF0) /* Gen4_ICUMX_loader at RT-VRAM */
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#define _MODE_115200 0x00115200
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modemr = mem_read32(_MODE31);
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if (modemr == _MODE_115200)
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modemr = MODEMR_SCIF_DLMODE;
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else
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#endif
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{
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modemr = ((mem_read32(RST_MODEMR0) & RST_MODEMR0_MD31) >> 31U);
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modemr |= ((mem_read32(RST_MODEMR1) & RST_MODEMR1_MD32) << 1U);
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}
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scif_console_init(modemr);
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}
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/* End of function scif_init(void) */
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void console_putc(uint8_t outchar)
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{
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if (outchar == 0x0A) /* \n */
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{
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rcar_putc( 0x0D ); /* \r */
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}
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rcar_putc(outchar);
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}
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/* End of function console_putc(void) */
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static void scif_console_putc(uint8_t outchar)
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{
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uint16_t reg;
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/* Check that transfer of SCIF0 is completed */
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while (!((TRANS_END_CHECK & mem_read16(SCIF_SCFSR)) == TRANS_END_CHECK))
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{
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;
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}
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mem_write8(SCIF_SCFTDR, outchar); /* Transfer one character */
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reg = mem_read16(SCIF_SCFSR);
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reg &= (uint16_t)(~(TRANS_END_CHECK)); /* TEND,TDFE clear */
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mem_write16(SCIF_SCFSR, reg);
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/* Check that transfer of SCIF0 is completed */
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while (!((TRANS_END_CHECK & mem_read16(SCIF_SCFSR)) == TRANS_END_CHECK))
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{
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;
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}
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}
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/* End of function scif_console_putc(uint8_t outchar) */
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static void hscif_console_putc(uint8_t outchar)
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{
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uint16_t reg;
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/* Check that transfer of SCIF0 is completed */
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while (!((TRANS_END_CHECK & mem_read16(HSCIF_HSFSR)) == TRANS_END_CHECK))
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{
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;
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}
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mem_write8(HSCIF_HSFTDR, outchar); /* Transfer one character */
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reg = mem_read16(HSCIF_HSFSR);
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reg &= (uint16_t)(~(TRANS_END_CHECK)); /* TEND,TDFE clear */
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mem_write16(HSCIF_HSFSR, reg);
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/* Check that transfer of SCIF0 is completed */
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while (!((TRANS_END_CHECK & mem_read16(HSCIF_HSFSR)) == TRANS_END_CHECK))
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{
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;
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}
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}
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/* End of function hscif_console_putc(uint8_t outchar) */
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