blob: bf764c108e31d7c378377fee7c06e1271b077cbb (
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 - Copyright (C) 2006..2016 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file GPIOv1/hal_pal_lld.c
* @brief AVR/MEGA PAL subsystem low level driver source.
*
* @addtogroup PAL
* @{
*/
#include "hal.h"
#if HAL_USE_PAL || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables and types. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief AVR GPIO ports configuration.
* @details GPIO registers initialization.
*
* @param[in] config the AVR ports configuration
*
* @notapi
*/
void _pal_lld_init(const PALConfig *config) {
#if defined(PORTA) || defined(__DOXYGEN__)
PORTA = config->porta.out;
DDRA = config->porta.dir;
#endif
#if defined(PORTB) || defined(__DOXYGEN__)
PORTB = config->portb.out;
DDRB = config->portb.dir;
#endif
#if defined(PORTC) || defined(__DOXYGEN__)
PORTC = config->portc.out;
DDRC = config->portc.dir;
#endif
#if defined(PORTD) || defined(__DOXYGEN__)
PORTD = config->portd.out;
DDRD = config->portd.dir;
#endif
#if defined(PORTE) || defined(__DOXYGEN__)
PORTE = config->porte.out;
DDRE = config->porte.dir;
#endif
#if defined(PORTF) || defined(__DOXYGEN__)
PORTF = config->portf.out;
DDRF = config->portf.dir;
#endif
#if defined(PORTG) || defined(__DOXYGEN__)
PORTG = config->portg.out;
DDRG = config->portg.dir;
#endif
#if defined(PORTH) || defined(__DOXYGEN__)
PORTH = config->porth.out;
DDRH = config->porth.dir;
#endif
#if defined(PORTJ) || defined(__DOXYGEN__)
PORTJ = config->portj.out;
DDRJ = config->portj.dir;
#endif
#if defined(PORTK) || defined(__DOXYGEN__)
PORTK = config->portk.out;
DDRK = config->portk.dir;
#endif
#if defined(PORTL) || defined(__DOXYGEN__)
PORTL = config->portl.out;
DDRL = config->portl.dir;
#endif
}
/**
* @brief Pads mode setup.
* @details This function programs a pads group belonging to the same port
* with the specified mode.
*
* @param[in] port the port identifier
* @param[in] mask the group mask
* @param[in] mode the mode
*
* @note This function is not meant to be invoked directly by the application
* code.
* @note @p PAL_MODE_UNCONNECTED is implemented as output as recommended by
* the AVR Family User's Guide. Unconnected pads are set to input
* with pull-up by default.
*
* @notapi
*/
void _pal_lld_setgroupmode(ioportid_t port,
ioportmask_t mask,
iomode_t mode) {
switch (mode) {
case PAL_MODE_RESET:
case PAL_MODE_INPUT:
case PAL_MODE_INPUT_ANALOG:
port->dir &= ~mask;
port->out &= ~mask;
break;
case PAL_MODE_UNCONNECTED:
case PAL_MODE_INPUT_PULLUP:
port->dir &= ~mask;
port->out |= mask;
break;
case PAL_MODE_OUTPUT_PUSHPULL:
port->dir |= mask;
break;
}
}
#endif /* HAL_USE_PAL */
/** @} */
|
