include/bsp/uart-output-char.h

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup bsp_kit
0007  *
0008  * @brief Output character definitions for standard UARTs.
0009  */
0010
0011 /*
0012  * Copyright (c) 2010 embedded brains GmbH & Co. KG
0013  *
0014  * Redistribution and use in source and binary forms, with or without
0015  * modification, are permitted provided that the following conditions
0016  * are met:
0017  * 1. Redistributions of source code must retain the above copyright
0018  *    notice, this list of conditions and the following disclaimer.
0019  * 2. Redistributions in binary form must reproduce the above copyright
0020  *    notice, this list of conditions and the following disclaimer in the
0021  *    documentation and/or other materials provided with the distribution.
0022  *
0023  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0024  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0025  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0026  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0027  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0028  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0029  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0030  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0031  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0032  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0033  * POSSIBILITY OF SUCH DAMAGE.
0034  */
0035
0036 #ifndef LIBBSP_SHARED_UART_OUTPUT_CHAR_H
0037 #define LIBBSP_SHARED_UART_OUTPUT_CHAR_H
0038
0039 #include <stdint.h>
0040
0041 #include <bsp.h>
0042
0043 #define CONSOLE_RBR (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x00))
0044 #define CONSOLE_THR (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x00))
0045 #define CONSOLE_DLL (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x00))
0046 #define CONSOLE_DLM (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x04))
0047 #define CONSOLE_IER (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x04))
0048 #define CONSOLE_IIR (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x08))
0049 #define CONSOLE_FCR (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x08))
0050 #define CONSOLE_LCR (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x0C))
0051 #define CONSOLE_MCR (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x10))
0052 #define CONSOLE_LSR (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x14))
0053 #define CONSOLE_SCR (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x1C))
0054 #define CONSOLE_ACR (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x20))
0055 #define CONSOLE_ICR (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x24))
0056 #define CONSOLE_FDR (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x28))
0057 #define CONSOLE_TER (*(volatile uint32_t *) (BSP_CONSOLE_UART_BASE + 0x30))
0058
0059 #define CONSOLE_LSR_RDR 0x1
0060 #define CONSOLE_LSR_THRE 0x20
0061 #define CONSOLE_LSR_TEMT 0x40
0062
0063 #define BSP_CONSOLE_UART_INIT(dll) \
0064   do { \
0065     CONSOLE_LCR = 0x00; \
0066     CONSOLE_IER = 0x00; \
0067     CONSOLE_LCR = 0x80; \
0068     CONSOLE_DLL = (dll & 0xFF); \
0069     CONSOLE_DLM = (dll >> 8); \
0070     CONSOLE_LCR = 0x03; \
0071     CONSOLE_FCR = 0x07; \
0072   } while (0)
0073
0074 #endif /* LIBBSP_SHARED_UART_OUTPUT_CHAR_H */