blob: 3c36e0ab1daa8f5b529f6fab2b521994dcadc9d0 (
plain)
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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/*
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file AT91SAM7/serial_lld.h
* @brief AT91SAM7 low level serial driver header.
* @addtogroup AT91SAM7_SERIAL
* @{
*/
#ifndef _SERIAL_LLD_H_
#define _SERIAL_LLD_H_
#if CH_HAL_USE_SERIAL || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @brief UART0 driver enable switch.
* @details If set to @p TRUE the support for USART1 is included.
* @note The default is @p TRUE.
*/
#if !defined(USE_SAM7_USART0) || defined(__DOXYGEN__)
#define USE_SAM7_USART0 TRUE
#endif
/**
* @brief UART1 driver enable switch.
* @details If set to @p TRUE the support for USART2 is included.
* @note The default is @p TRUE.
*/
#if !defined(USE_SAM7_USART1) || defined(__DOXYGEN__)
#define USE_SAM7_USART1 TRUE
#endif
/**
* @brief UART1 interrupt priority level setting.
*/
#if !defined(SAM7_USART0_PRIORITY) || defined(__DOXYGEN__)
#define SAM7_USART0_PRIORITY (AT91C_AIC_PRIOR_HIGHEST - 2)
#endif
/**
* @brief UART2 interrupt priority level setting.
*/
#if !defined(SAM7_USART1_PRIORITY) || defined(__DOXYGEN__)
#define SAM7_USART1_PRIORITY (AT91C_AIC_PRIOR_HIGHEST - 2)
#endif
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Serial Driver condition flags type.
*/
typedef uint32_t sdflags_t;
/**
* @brief AT91SAM7 Serial Driver configuration structure.
* @details An instance of this structure must be passed to @p sdStart()
* in order to configure and start a serial driver operations.
*/
typedef struct {
/**
* @brief Bit rate.
*/
uint32_t sc_speed;
/**
* @brief Initialization value for the MR register.
*/
uint32_t sc_mr;
} SerialConfig;
/**
* @brief @p SerialDriver specific data.
*/
#define _serial_driver_data \
_base_asynchronous_channel_data; \
/* Driver state.*/ \
sdstate_t state; \
/* Current configuration data.*/ \
const SerialConfig *config; \
/* Input queue.*/ \
InputQueue iqueue; \
/* Output queue.*/ \
OutputQueue oqueue; \
/* Status Change @p EventSource.*/ \
EventSource sevent; \
/* I/O driver status flags.*/ \
sdflags_t flags; \
/* Input circular buffer.*/ \
uint8_t ib[SERIAL_BUFFERS_SIZE]; \
/* Output circular buffer.*/ \
uint8_t ob[SERIAL_BUFFERS_SIZE]; \
/* End of the mandatory fields.*/ \
/* Pointer to the USART registers block.*/ \
AT91PS_USART usart;
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
/** @cond never*/
#if USE_SAM7_USART0
extern SerialDriver SD1;
#endif
#if USE_SAM7_USART1
extern SerialDriver SD2;
#endif
#ifdef __cplusplus
extern "C" {
#endif
void sd_lld_init(void);
void sd_lld_start(SerialDriver *sdp);
void sd_lld_stop(SerialDriver *sdp);
#ifdef __cplusplus
}
#endif
/** @endcond*/
#endif /* CH_HAL_USE_SERIAL */
#endif /* _SERIAL_LLD_H_ */
/** @} */
|