-
-
Notifications
You must be signed in to change notification settings - Fork 63
/
uart_soft.h
91 lines (84 loc) · 2.88 KB
/
uart_soft.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
/**
* @section License
*
* The MIT License (MIT)
*
* Copyright (c) 2014-2017, Erik Moqvist
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* This file is part of the Simba project.
*/
#ifndef __DRIVERS_UART_SOFT_H__
#define __DRIVERS_UART_SOFT_H__
#include "simba.h"
struct uart_soft_driver_t {
struct pin_driver_t tx_pin;
struct pin_driver_t rx_pin;
struct exti_driver_t rx_exti;
struct chan_t chout;
struct queue_t chin;
int sample_time;
int baudrate;
};
/**
* Initialize driver object from given configuration.
*
* @param[in] self_p Driver object to be initialized.
* @param[in] tx_dev_p TX pin device.
* @param[in] rx_dev_p RX pin device.
* @param[in] rx_exti_dev_p RX pin external interrupt device.
* @param[in] baudrate Baudrate.
* @param[in] rxbuf_p Reception buffer.
* @param[in] size Reception buffer size.
*
* @return zero(0) or negative error code.
*/
int uart_soft_init(struct uart_soft_driver_t *self_p,
struct pin_device_t *tx_dev_p,
struct pin_device_t *rx_dev_p,
struct exti_device_t *rx_exti_dev_p,
int baudrate,
void *rxbuf_p,
size_t size);
/**
* Read data from the UART.
*
* @param[in] self_p Initialized driver object.
* @param[in] buf_p Buffer to read into.
* @param[in] size Number of bytes to receive.
*
* @return Number of received bytes or negative error code.
*/
#define uart_soft_read(self_p, buf_p, size) \
queue_read(&(self_p)->chin, buf_p, size)
/**
* Write data to the UART.
*
* @param[in] self_p Initialized driver object.
* @param[in] buf_p Buffer to write.
* @param[in] size Number of bytes to write.
*
* @return number of sent bytes or negative error code.
*/
#define uart_soft_write(self_p, buf_p, size) \
(self_p)->chout.write(&(self_p)->chout, buf_p, size)
#endif