RTEMS: bsps/arm/include/bsp/zynq-uart.h Source File

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zynq-uart.h
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1
7/*
8 * SPDX-License-Identifier: BSD-2-Clause
9 *
10 * Copyright (C) 2013, XXX embedded brains GmbH
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#ifndef LIBBSP_ARM_XILINX_ZYNQ_UART_H
35#define LIBBSP_ARM_XILINX_ZYNQ_UART_H
36
37#include <rtems/termiostypes.h>
38
39#ifdef __cplusplus
40extern "C" {
41#endif /* __cplusplus */
42
49 typedef struct {
50 rtems_termios_device_context base;
51 volatile struct zynq_uart *regs;
52 bool transmitting;
53 rtems_vector_number irq;
54} zynq_uart_context;
55
56extern const rtems_termios_device_handler zynq_uart_handler;
57
58#define ZYNQ_UART_DEFAULT_BAUD 115200
59
60void zynq_uart_initialize(rtems_termios_device_context *base);
61
62int zynq_uart_read_polled(rtems_termios_device_context *base);
63
64void zynq_uart_write_polled(
65 rtems_termios_device_context *base,
66 char c
67);
68
72void zynq_uart_reset_tx_flush(zynq_uart_context *ctx);
73
74int zynq_cal_baud_rate(
75 uint32_t baudrate,
76 uint32_t* brgr,
77 uint32_t* bauddiv,
78 uint32_t modereg
79);
80
81#ifdef __cplusplus
82}
83#endif /* __cplusplus */
84
85#endif /* LIBBSP_ARM_XILINX_ZYNQ_UART_H */
rtems_vector_number
ISR_Vector_number rtems_vector_number
Control block type used to manage the vectors.
Definition: intr.h:47
rtems_termios_device_context
Termios device context.
Definition: termiostypes.h:75
rtems_termios_device_handler
Termios device handler.
Definition: termiostypes.h:141
zynq_uart_context
Definition: zynq-uart.h:49
zynq_uart
Definition: zynq-uart-regs.h:48
termiostypes.h
zynq_uart_reset_tx_flush
void zynq_uart_reset_tx_flush(zynq_uart_context *ctx)
Definition: zynq-uart-polled.c:173